A driving apparatus for cutting off the working of embroidery needle

专利摘要:
The present invention is a needle drive piece for elevating the needle shaft while interlocking with the rotational motion of the embroidery machine spindle is normally operated in the same way as the existing product function, when the left and right width of the embroidery product is larger than the head spacing needles of odd or even number of embroidery head In the case of the head embroidery, which stops the shaft operation, the needle drive piece is removed from the elastic piece force in order to allow the needle drive piece to be blocked from the needle shaft, and the needle drive piece is manually rotated to be fixed in position. It is a device to keep contact of the blocked state. The present invention prevents damage to the device due to frictional shock by extending the life of parts by eliminating contact and friction, unlike the case of the head embroidery of the existing device which forcibly blocks the operation of the needle driving piece by using the solenoid driver. And a non-contact embroidery needle switching drive device capable of suppressing noise. Moreover, the present invention has the advantage that the one-touch control is possible manually, the drive control is easy, and the configuration is simple and easy to manufacture.
公开号:KR20040070402A
申请号:KR1020030006602
申请日:2003-02-03
公开日:2004-08-09
发明作者:곽동우
申请人:김용희；
IPC主号:

专利说明:

Non-contact embroidery embroidery switch drive device for embroidering {A DRIVING APPARATUS FOR CUTTING OFF THE WORKING OF EMBROIDERY NEEDLE}
[28] In the present invention, in the case of the head embroidery that has to stop the needle shaft continuously for a long time, the contact and friction of the head shaft can be prevented by removing the contact and friction caused by the needle shaft switching and the noise can be suppressed. An embroidery needle switching drive device.
[29] In general, embroidery machines such as computer embroidery machines, multi-head computer embroidery machines, and computer quilting machines for finished products are largely embroidered by the embroidery machine controller according to the sewing machine which handles sewing and the data input into a predetermined memory instead of a hand. It consists of the frame part that controls the movement of the frame by controlling the X-axis pulse motor and Y-axis pulse motor. In other words, the embroidery machine in the present invention is a concept including both a computer embroidery machine, a multihead computer embroidery machine, a computer quilting machine, and the like for a finished product.
[30] The upper part of the sewing machine is located in the upper part of the frame and has an embroidery head composed of needles hanging colorful embroidery threads. The embroidery head is moved horizontally by the needle movable body is coupled to the head body. Several needle shafts are attached to the needle moving body so that they can be elevated vertically, and the head case is equipped with a needle driving unit which is powered by the main shaft to raise and lower the needle shaft. The gripping and the guide piece are coupled to the cam fixed to the headcase to be raised or lowered by the rotation of the cam. Of course, the cam is coupled to the main shaft of the embroidery machine and rotated by the rotation of the main shaft to drive the needle drive piece coupled thereto, resulting in raising or lowering the needle to embroider the fabric placed on the frame. At this time, the hook shaft is formed on the needle driving piece corresponding to the engaging projection on the needle shaft so as to embroider the needle with the desired color thread. The hook portion of the needle drive piece is raised or lowered by the hook projection of the needle shaft.
[31] In this way, the needle shaft is embroidered by transmitting power to the needle shaft to which the needle is attached. When the needle shaft is moving up and down at high speed, it is necessary to control the needle shaft quickly and to continuously control it for a long time. There is a case. When fast control is required, for example-when a thread is broken, jump control for working a wide stitch, or maintenance, etc., and when continuous control is required for a long time, for example- When the left and right widths are larger than the head spacing, there may be a case of double head that stops the needle shaft operation of the odd or even embroidery head.
[32] This power interruption is achieved by separating the connection between the needle drive piece and the needle shaft, which is the structure of the conventional needle drive device for engaging or releasing the hook portion of the needle drive piece to the engaging projection of the needle shaft. Is disclosed.
[33] Figure 1a is a perspective view showing an example of a conventional embroidery needle drive device, Figure 1b is a side view of Figure 1a. In addition, Figures 2a and 2b is a plan view showing the operating state of the conventional embroidery needle drive device, Figure 2a shows a latched state of the hook portion and the locking projections, and Figure 2b shows the release state of the hook portion and the locking projections. Giving.
[34] As shown in the related art, the needle needle driving device is gripped by the guide piece 12 on the support shaft 10 and fixed to the circumferential direction while the cylindrical needle drive piece 20 is raised and lowered. To this end, the inclined pressing portion 22 having an inclination protrudes from the side surface of the needle driving piece 20, and the hook portion 24 is formed adjacent thereto. The inclined pressure part 22 is caught by the hook part 24 while the inclined surface 26 is pushed by the solenoid driver 30 fixed to the head case (not shown) to form the inclined surface 26 and corresponding thereto. The locking protrusion 42 of the needle shaft 40 is released. The solenoid driver 30 rotates the needle driving piece 20 by not pushing or pushing the inclined pressure part 22 corresponding thereto while the rod 32 is contracted / expanded by supplying / blocking current. The hook part 24 releases the needle shaft 40 while leaving the catching protrusion 42, or the hooking part 24 grips the catching protrusion 42 to move up and down. Of course, when it is necessary to control the needle shaft as described above, especially when it is necessary to cut off the power of the needle shaft, the solenoid driver 30 is operated so that the rod 32 pushes the inclined pressure part 22. As the needle drive piece 20 is pivoted, the engaging protrusion 42 is separated from the hook portion 24 so that the needle shaft 40 is released. Therefore, the power transmitted to the needle shaft 40 is cut off so that the embroidery operation of the needle mounted at the end of the needle shaft 40 is stopped. When it is necessary to transmit power to the needle shaft 40 again, the rod 32 of the solenoid driver 30 contracts, and thus the needle driving piece 20 is restored to its original state on the support shaft 10. Ascending to the position of 42, the hook portion 24 is caught by the engaging projection 42 of the needle shaft (40). In this way, in order to provide a restoring force to the needle driving piece 20, the elastic piece 14 is provided on the needle driving piece 20 and the guide piece 12.
[35] The elevating action of the needle driving piece 20 for raising or lowering the needle shaft 40 as described above is made at a high speed, and the needle driving piece 20 blocks or transmits power of the needle shaft 40 while interlocking with the needle driving piece 20. The turning motion of is made instantaneously. Therefore, the rod 32 of the solenoid driver 30 and the inclined pressing portion 26 of the needle driving piece 20 are instantaneously contacted at a high speed, and large wear occurs due to severe friction, as well as due to impact. There is a problem that the damage is very high, and the noise caused by the high-speed contact is very large.
[36] Particularly, when the solenoid driver stops and the rod contracts, the inclined pressure part that the rod pushed is released, and it is restored to its original state by the restoring force of the spring directly installed between the driving piece and the guide piece. Therefore, during the embroidering, the rod and the inclined pressure part of the solenoid actuator are hit at each lift, so that the noise is continued throughout the operation and the damage and destruction of the embroidery machine due to abrasion and friction were high.
[37] Accordingly, an object of the present invention is to solve the above-mentioned shortcomings in the case of the head embroidery that must shut off the needle shaft continuously for a long time, in the case of head embroidery to remove the force of the elastic piece that gives the restoring force of the needle drive piece This prevents damage to the device due to frictional shock by eliminating contact and friction caused by needle shaft switching for a long time by making the needle drive piece cut off from the needle shaft. To provide a non-contact embroidery needle switching drive device.
[1] Detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which numerals designate corresponding parts in the drawings.
[2] Figure 1a is a perspective view showing an example of a conventional embroidery needle drive device,
[3] 1B is a side view of FIG. 1A,
[4] 2A and 2B are plan views showing an operating state of a conventional embroidery needle drive device,
[5] 3A to 3C are views illustrating an embodiment of a non-contact embroidery needle switching drive device according to the present invention;
[6] 4a and 4b are a plan view and a side view showing an operating state of the apparatus shown in Figs. 3b and 3c,
[7] 5a and 5b are a plan view and a side view showing a method of operation of the device shown in Figures 3b and 3c,
[8] 6a and 6b are views showing another embodiment of the non-contact embroidery needle switching drive device according to the present invention,
[9] 7A to 8B are views for explaining the operation of the needle driving piece shown in Figs. 6A and 6B.
[10] ** Explanation of symbols for main parts of drawings **
[11] 100: needle drive 102: hook part
[12] 104: inclined pressing portion 106: protrusion
[13] 108a: locking position groove 108b: release position groove
[14] 109: protrusion 110: guide
[15] 112: mounting groove 114: spring
[16] 116: jam ball 120: head case
[17] 122: rotating support cylinder 124a: pressing position groove
[18] 124b: release position groove 200: contact table
[19] 202: Tip Pressing Part 204: Contact Roller
[20] 206: rotation support shaft 208: lower end
[21] 210: pressure spring 220: separation knob
[22] 222: eccentric end 224: handle portion
[23] 224a: mounting groove 226: shaft portion
[24] 230: spring 232: fixed ball
[25] 300: elastic pressure bar 310: outer bar
[26] 320: inner 330: spring
[27] 400: Pushpin
[38] The diaphragm embroidery non-contact embroidery needle switching drive device according to the present invention for achieving the above object is to be mounted on the guide piece to move on and off the support shaft fixed to the head case to hold or release the needle shaft fixed to the needle shaft fixed needle A needle driving device having a needle driving piece for driving by transmitting or blocking power to a shaft, the needle driving device comprising: a protrusion projecting from one side of the needle driving piece; One end is elastically pressurizing the protrusions to provide a restoring force to the needle driving piece, it is rotatably fixed to the head case to be able to release outside the movable range of the protrusions; A separation knob configured to push the contact table to move one end of the pressing portion out of the movable range of the protrusion; And a driving position fixing means provided between the needle driving piece and the guide piece to fix the needle driving piece in that state when the position of the needle driving piece and the needle shaft is moved to a locking position and / or a release position. .
[39] The diaphragm embroidery non-contact embroidery needle switching drive device according to the present invention for achieving the above object is to be mounted on the guide piece to move on and off the support shaft fixed to the head case to hold or release the needle shaft fixed to the needle shaft fixed needle A needle driving device having a needle driving piece for driving by transmitting or blocking power to a shaft, the needle driving device comprising: a protrusion projecting from one side of the needle driving piece; An outer rod fixed to the guide piece, an inner rod inserted into the outer rod and contracted and expanded therefrom and elastically pressurizing the protrusion to provide a restoring force to the needle driving piece; Elastic pressing rod having a spring to provide an elastic force to; And a driving position fixing means provided between the needle driving piece and the guide piece to fix the needle driving piece in such a state when the needle driving piece and the needle shaft are moved to a locking position and / or a release position. The elastic pressing rod is characterized in that the inner rod is caught in a compressed state when it is compressed over the movable displacement width of the protrusion, and released and restored as it is pressed once again.
[40] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[41] 3A to 3C are diagrams illustrating one embodiment of a non-contact embroidery needle switching drive device according to the present invention, which is a front view, a plan view, and a side view, respectively.
[42] The needle driving piece 100 for holding and elevating the needle shaft 40 is mounted on the C-shaped guide piece 110 and lifted on the support shaft 10, which is a cam on which the guide piece 110 is rotated by the main shaft. It is connected to (not shown) and is made by repeatedly moving up and down a certain cycle. In particular, as described above, the needle driving piece 100 protrudes on the front portion of the c-shaped hook portion 102 and hangs the locking protrusions 42 of the needle shaft 40 to drive the needle shaft 40 down or to block the needle shaft 40. The hook portion 102 is released from the machine 42 to block the driving of the needle shaft 40. The engaging and releasing of the locking protrusion 42 and the hook portion 102 is performed by turning the needle driving piece 100 having the hook portion 102 formed at a predetermined angle, for this purpose, the work of the needle driving piece 100. An inclined protrusion 104 is formed at the side surface, and the solenoid driver 30 is located correspondingly thereto. Therefore, when the solenoid driver 30 is operated and the expanded rod 32 pushes the inclined pressure part 104, the needle driving piece 100 pivots to catch the hook part 102 that is caught on the locking protrusion 42. The locking is released by rotating away from the machine 42 in the horizontal direction. As a result, the power transmitted to the needle shaft 40 through the needle driving piece 100 is cut off so that only the needle driving piece 100 descends and the needle shaft 40 stops at an elevated position.
[43] This shut-off of power is such that when the needle shaft is released, for example, during a jump operation or when the thread is broken, intermittent driving of the needle shaft 40 is intermittently stopped or the operation of the odd or even number of the needle shafts 40 in the case of double head embroidery is stopped. Used to stop. In order to raise and lower the needle shaft 40 thus stopped, the operation of the solenoid driver 30 is stopped. Then, the inclined pressure part 104 that the rod 32 is contracted and pushed is released and can be restored to its original state. Done. In this embodiment, the restoring means is provided outside the needle driving piece 100 for the restoration of the needle driving piece 100 which is thus released and can be turned in the guide piece 110. That is, the needle driving member 100 is fixed to the head case 120 so as to be pivotally resiliently pressed to restore the original state to the original state, and the pressing spring 210 to the rotation center and the head case 120. The front end pressurizing unit 202 of the contact table 200 is elastically compressed so that the needle driving piece 100 is always elastically pressed in the restoring direction of the needle driving piece 100. The tip pressing part 202 is equipped with a contact roller 204 in order to minimize friction and noise at the close contact part when elastic pressure is applied, and a projecting part 106 at the contact part of the needle driving piece 100 opposite thereto. Is formed so that the close roller 204 is rotated along the side of the protrusion 106, it is possible to smooth elastic pressure. This projecting portion 106 is preferably composed of an inclined protrusion having an inclined surface for guiding the contact roller 204 on the upper side. The contact table 200 also extends downwardly in a direction opposite to the tip pressing portion 202 about the rotation support shaft 206. Therefore, when the lower end portion 208 is pushed by operating like a lever around the rotation support shaft 206, the upper pressing portion 202 is rotated in the opposite direction to fall from the needle driving piece 100. In the present invention by using this principle, the cam-shaped separation knob 220 in contact with the lower end 208 of the contact table 200 by rotating the separation knob 220 is eccentric and abuts the lower end of the contact table 200 The eccentric end 222 is pushed against the contact table 200 to be spaced apart from the protrusion 106 of the needle drive piece (100). The separation knob 200 is rotatably coupled to the head case 120, the shaft portion is fitted to the handle portion 224 and the rotary support cylinder 122 of the head case 120 located outside the head case 120. 226 and an eccentric end 222 extended from the axial part 226 are provided.
[44] In particular, the present invention provides a knob position fixing means for fixing the separation knob 220 in a rotationally operated state at the pressing position and the release position. Knob position fixing means is a fixing ball 232 which is supported by a spring 230 in the mounting groove 224a formed in the handle portion 224 of the separation knob 220 to protrude a certain portion to the outside as shown, The fixed ball 232 is composed of a pressing position groove 124a and a release position groove 124b formed in a corresponding portion of the head case 120 to be caught by entering a predetermined portion. By the knob position fixing means, the spaced-out knob 220 is caught and clicked at a pressing position and a releasing position and stopped, and when the fixed ball 232 is rotated with a predetermined force, the fixing balls 232 are pressed / released position grooves 124a and 124b. The rotation of the separation knob 220 is possible. The pressing position groove 124a and the release position groove 124b are preferably located at approximately 180 ° intervals in the head case 120.
[45] In addition, the present invention provides a drive position fixing means for fixing the needle drive piece 100 in the locking position and the release position. The driving position fixing means includes a locking ball 116 supported by a spring 114 in a mounting groove 112 formed in the upper bottom portion of the guide piece 110 facing the needle driving piece 100, and the locking ball ( 116 is provided with a locking position groove (108a) and a release position groove (108b) formed in the corresponding portion of the needle drive piece 100 so as to be locked respectively at the locking position and the release position of the needle drive piece (100). The locking position groove (108a) and the separation position groove (108b) is preferably formed as a V-shaped groove, then when the locking ball 116 comes within a predetermined range is entered into the V-shaped groove inclined surface is fixed at that position. As a result, when the needle driving piece 100 comes close to the locking position, the needle driving piece 100 enters and is fixed on the inclined surface of the locking position groove 108a even if it slightly deviates from the elastic range of the contact roller 204 of the contact table 200. As a result, the close contact roller 204 and the inclined protrusion 106 that is in contact therewith are slightly apart so that interference (friction) does not occur during lifting.
[46] On the other hand, when the separation knob 220 is rotated to the release position, the fixing ball 232 is inserted into the release position groove 124b and caught, and the contact table 200 rotated accordingly is fixed to the pivot position at a stationary state. It is spaced apart from the protruding portion 106 of the needle driving piece 100 facing each other. In this state, when the needle drive piece 100 is manually pushed to turn to the release position, the engaging ball 116 coalesced in the guide piece 110 and the needle drive piece 100 moves its inclined surface in the vicinity of the release position groove 108b. The ride is inserted and fixed to the release position. At this time, as the method for rotating the needle driving piece 100 may push the side of the needle driving piece 100 directly with a push rod (not shown) from the outside, but for a more convenient and stable operation, the needle by driving the solenoid driver once What is necessary is just to turn the drive piece 100 in the released state. In the case of double head embroidery, if the even or odd needle driving piece 100 is placed in the disengaged position and driven, the driving of the solenoid driver 30 is unnecessary and the noise does not occur even when driven. And friction can be prevented.
[47] The previously described knob position fixing means may be configured to reverse the configuration position of the fixing ball 232 to the head case 120 and the pressing / release position grooves (124a, 124b) in the separation knob 220, the driving position The fixing means can obtain the same operation even if the locking ball 116 and the locking / disengaging position grooves (108a, 108b) in the opposite components to the configuration.
[48] 4A and 4B are a plan view and a side view showing an operating state of the apparatus shown in FIGS. 3B and 3C, and FIGS. 5A and 5B are a plan view and a side view showing a method of operating the apparatus shown in FIGS. 3B and 3C. to be. Now, the method of using the apparatus will be described in detail with reference to these drawings and FIGS. 3A to 3C described above.
[49] When lifting and lowering of the needle shaft 40 is required, as shown in FIGS. 3A to 3C, the hook portion 102 of the needle driving piece 100 must grip the engaging protrusion 42 of the needle shaft 40 from the main shaft. The power is transmitted to the needle shaft 40 by the power of the guide piece 110 and the needle driving piece 100 to be moved up and down. To this end, the solenoid driver 30 is in a non-operational state in which the rod 32 is contracted, and the contact table 200 is in a state in which the needle driving piece 100 is elastically pressed. At this time, the separation knob 220 is in the pressing position, the fixing ball 232 is in the pressing position groove (124a).
[50] When the needle shaft is released in the above state, for example, during a jump operation or when the thread is broken, the solenoid driver 30 is operated as shown in FIGS. 4A and 4B so that the rod 32 pushes the inclined pressure part 104. As a result, the needle driving piece 100 pivots so that the hook portion 102 of the needle driving piece 100 is separated from the locking protrusion 42 of the needle shaft 40. At this time, the close contact 200 is pushed by the inclined protrusion 106 of the needle driving piece 100 is rotated and is subjected to the restoring force of the pressure spring 210. Therefore, when the rod 32 of the solenoid driver 30 is contracted, the inclined protrusion 106 of the needle driving piece 100 is pushed by the elastic restoring force acting on the contact table 200, and the needle driving piece 100 is pushed. As a result, the hook portion 102 is caught by the hooking protrusion 42 again, and the needle driving piece 100 grips and lifts the needle shaft 40 during the next driving operation.
[51] It is not necessary to drive the needle shaft 40 because the odd or even number of needles are not used when the head is embroidered. Therefore, it is preferable in operation to separate the locking projections 42 from the hook portion 102. Therefore, in the present invention, as shown in FIGS. 5A and 5B, the separation knob 220 is rotated 180 ° so that the eccentric end 222 pushes the lower portion of the contact table 200 to the needle about the rotation support shaft 206. The contact roller 204 of the upper end in contact with the driving piece 100 is spaced apart from the protrusion 106 of the needle driving piece 100. At this time, the separation knob 220 is maintained by the fixing ball 232 installed therein is inserted into the release position groove (124b) of the head case 120 to maintain the rotated release position. Then, a push rod or the like is inserted into the entrance hole (not shown) of the needle driving piece 100, or the needle driving piece 100 is turned in a released state by driving the solenoid driver once. Then, the hook portion 102 of the needle driving piece 100 is released from the locking protrusion 42 of the needle shaft 40, and the locking ball 116 mounted to the guide piece 100 is of the needle driving piece 100. The needle drive piece 100 is fixed to the release position from the guide piece 110 by being caught in the release position groove 108b. Therefore, even when the guide piece 110 is elevated, the needle driving piece 100 mounted thereon is lifted in the fixed position so that the driving of the needle shaft 40 does not occur, and the rod of the solenoid driver 30 is not generated. No collision with (32) occurs. Of course, when the needle shaft 40 is to be driven again, the above operation may be performed in the reverse order.
[52] Figures 6a to 8b is a view showing another embodiment of the non-embroidered embroidery needle switching drive device according to the present invention, Figures 6a and 6b are a plan view and a side view showing a state in which the driving piece and the needle shaft is driven in engagement 7A and 7B illustrate a state in which a solenoid driver is operated during a jump operation so that the needle driving piece is rotated and the elastic pressure bar is compressed to press the needle driving piece in a direction to return the needle driving piece. Top and side views, respectively, show a state in which the rod is inserted from the outside and the needle drive piece is manually pivoted to the stopping point to fix the elastic pressure bar in a compressed state.
[53] As shown in Figure 6a and Figure 6b, in the present invention can be used as a button-type elastic pressure bar 300 as a restoring means for providing a restoring force of the needle drive piece (100a). The elastic pressure bar 300 is inserted into the inner rod 320 to the outer rod 310 is fixed to the guide piece (110a) and installed a spring 330 between them by the inner rod 320 shrinks and expands in the outer rod 310 The elastic force is formed. When the elastic pressure bar 300 is pushed into the outer rod (310) to the lowest point is locked in the compressed position, once again press the release is released by a universal locking structure, such as springing out by elastic force For example, according to the pressing operation seen in the push ball pen, a locking structure that repeats the latching and releasing is applied. Therefore, in the displacement width within the displacement (moving displacement of the protrusion) to the lowest point where the locking operation occurs, the inner rod 320 is applied to the elastic force to restore the original state to press the needle driving piece (100a). In order to fix the needle driving piece (100a) to the release position when the embroidered embroidery, the elastic pressing rod 300 is fixed in the compressed state to remove the elastic force, for that purpose push rod 124 in the head case 120 Compress them and push the push rod 400 from the outside through him and push the needle drive piece 100a located in the head case 120 by pushing the push rod 400 to compress the elastic pressing rod 300 in close contact with the push point You can let it hang. At this time, the locking ball 116a is inserted into the disengagement position groove 108b and the needle driving piece 100a is fixed to the position. In this embodiment, if there is a release position groove (108b) is sufficient and the elastic pressing rod 300 is fixed to the guide piece (110a) and lifted together, even without forming a locking position groove does not cause any trouble in operation.
[54] In the jump operation, as shown in FIGS. 7A and 7B, the rod 32 of the solenoid driver 30 expands, the needle driving piece 100a pivots, and the catching protrusion 42 is released from the hook portion 102. The power transmission of the needle shaft 40 is cut off. Accordingly, the elastic pressing rod 300 is compressed to push the needle driving piece 100a, and thus is restored to its original state when the needle driving piece 100a leaves the solenoid driver 30. Then, the locking ball 116 of the guide piece (110a) is fixed in the locking position groove (108a) of the needle driving piece (100a) in the state that the needle driving piece (100a) is fixed to the locking position in the guide piece (100a) Ascend and descend.
[55] In addition, during the embroidered needle as shown in Figure 8a and 8b through the push rod inlet 124 of the head case 120 through the push rod 400, the needle drive piece located inside the push rod 400 from the outside When turning 100a, the needle driving piece 100a is turned and the protrusion 109 formed at the lower portion of the needle driving piece 100a compresses the elastic pressure bar 300, and as a result, the inner rod 320 is caught. When it comes to, it will get stuck and maintain its position. At this time, the engaging ball 116a is moved along the inclined surface in the vicinity of the V-shaped release position groove 108b so that the needle drive piece 100a is separated from the needle shaft 40, and thus the guide piece 110a The driving force is not transmitted to the needle shaft 40. In this way, the needle driving piece 100a is caught in the disengaging position groove 108b and is fixed to its pivoted position so that the needle driving piece 100a is elevated with the guide piece 110a, so that the solenoid driver 30 and the needle shaft 40 are provided. There will be no collision or friction.
[56] The embodiments disclosed herein are only presented by selecting the most preferred examples to assist those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, the present invention Various changes and modifications are possible within the scope without departing from the spirit of the invention, as well as other equivalent embodiments.
[57] As described above, the diaphragm embroidery non-contact embroidery needle switching drive device according to the present invention is to remove the force of the elastic piece manually and to rotate the needle drive piece when the needle drive piece and the needle shaft to block the contact continuously for a long time By maintaining the driving piece in the direction in which the needle shaft is blocked, there is an advantage that can prevent the damage of the device due to the friction shock and suppress the noise by eliminating contact and friction caused by the needle shaft switching for a long time during the head embroidery. In addition, since the present invention is a non-contact type, wear of the component does not occur, thereby extending the life and reducing maintenance (A / S). Moreover, the present invention has the advantage that the manual control is possible at one time, the driving control is easy, and the configuration is simple to reduce the manufacturing cost.

权利要求:
Claims (9)
[1" claim-type="Currently amended] The needle drive device is provided with a needle drive piece which is mounted on the guide piece and moves up and down on a support shaft fixed to the head case to hold or release the needle shaft to which the needle is fixed, and to transmit or block power to the needle shaft. In
A protrusion protruding from one side of the needle driving piece;
One end is elastically pressurizing the protrusions to provide a restoring force to the needle driving piece, it is rotatably fixed to the head case to be able to release outside the movable range of the protrusions;
A separation knob configured to push the contact table to move one end of the pressing portion out of the movable range of the protrusion; And
A gap between the needle driving piece and the guide piece, the driving position fixing means for fixing the needle driving piece in the state of moving the position of the needle driving piece and the needle shaft to a locking position and / or a release position; Non-contact embroidery needle change over drive when double embroidery.
[2" claim-type="Currently amended] The diaphragm of claim 1, wherein the protrusion is an inclined protrusion having an inclined surface of the upper surface in contact with the holder, and an adhesion roller is further provided at one end of the holder that contacts and presses the protrusion. Non-contact embroidery needle switching drive.
[3" claim-type="Currently amended] According to claim 1 or claim 2, wherein the rotation support shaft is formed in the approximately intermediate portion of the contact table is rotatably fixed to the head case, the eccentric eccentric from the rotation axis to the part pushing the contact table of the separation knob And a step and press the other end of the contact table so as to pivot one end of the contact table on which the contact roller is mounted with the rotation support shaft as a vertex so as to be spaced apart from the protruding portion.
[4" claim-type="Currently amended] According to claim 1, wherein the one side of the spacing knob and the facing portion of the head case, the fixed ball is supported by a spring, and the other side is fixed to the pressing position and the release position of the contact point by the fixed ball is entered A non-contact embroidery embroidery switching device further comprising a knob position fixing means having a pressing position groove and a release position groove for fixing the operation position of the knob.
[5" claim-type="Currently amended] The method of claim 1, wherein the drive position fixing means is a locking ball which is supported by a spring on one side of the facing portion of the guide piece and the needle driving piece, and the locking ball is entered into the other side to lock the needle driving piece A non-contact embroidery needle switching drive device having a diaphragm embroidery, characterized in that it comprises a locking position groove and / or the release position groove for fixing the operating position of the needle drive piece to the position and the disengaged position.
[6" claim-type="Currently amended] The contact roller according to claim 5, wherein the locking position groove and / or the release position groove are V-shaped grooves, and when the locking ball is located in the proximal portion thereof, the locking position groove enters and hangs on the inclined surface thereof. Bi-embroidery embroidery contactless needle switching device characterized in that the micro-spaced from the protrusion.
[7" claim-type="Currently amended] The needle drive device is provided with a needle drive piece which is mounted on the guide piece and moves up and down on a support shaft fixed to the head case to hold or release the needle shaft to which the needle is fixed, and to transmit or block power to the needle shaft. In
A protrusion protruding from one side of the needle driving piece;
An outer rod fixed to the guide piece, an inner rod inserted into the outer rod and contracted and expanded therefrom and elastically pressurizing the protrusion to provide a restoring force to the needle driving piece; Elastic pressing rod having a spring to provide an elastic force to; And
And a driving position fixing means provided between the needle driving piece and the guide piece to fix the needle driving piece in a state of moving the needle driving piece and the needle shaft to a locking position and / or a release position.
When the elastic pressure rod is compressed over the movable displacement width of the protruding portion, the inner rod is caught in a compressed state and is released and restored as it is pressed once again.
[8" claim-type="Currently amended] 8. The method of claim 7, wherein the driving position fixing means is a locking ball which is supported by a spring on one side of the facing portion of the guide piece and the needle driving piece, and the locking ball is entered into the other side to lock the needle driving piece A non-contact embroidery needle switching drive device having a diaphragm embroidery, characterized in that it comprises a locking position groove and / or the release position groove for fixing the operating position of the needle drive piece to the position and the disengaged position.
[9" claim-type="Currently amended] 9. The method of claim 8, wherein the needle drive piece and the needle shaft is released by drilling a push rod entry hole in the head case, by entering the push rod through the push rod entry hole by pushing the needle drive piece to the push rod. And the needle driving piece is also fixed to the needle driving piece by being inserted into the release position groove so as to be fixed by the elastic pressing rod in a compressed state.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2003-02-03|Application filed by 김용희

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2003-02-03|Priority to KR1020030006602A

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2004-08-09|Publication of KR20040070402A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020030006602A|KR20040070402A|2003-02-03|2003-02-03|A driving apparatus for cutting off the working of embroidery needle|