• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The laminator device has two holding parts for each of the lower and upper rollers 3 and 13, and surrounds at least one roller and has heating elements 10 and 20 for heating the rollers 3 and 13. One heating means (9, 19). The gap 4 between the two rollers 3, 13 allows one product to be introduced which must be inserted between the layers of thermoplastic material. The axial position of one of the rollers 3, 13 is fixed with respect to the plane of the introduction gap 4. The rollers 3, 13 are both surrounded by heating means 9, 19, which at predetermined points 11, 30, associated with the corresponding rollers 3, 13 at each point on their inner surface. 31:30, 41). This results in higher lamination quality and faster lamination speed.
    公开号:KR20010074969A
    申请号:KR1020017002893
    申请日:1999-09-02
    公开日:2001-08-09
    发明作者:볼프강 바이펜바흐；한스-페테르 케테레르
    申请人:추후제출；이비코 트레이딩 게엠베하；
    IPC主号:
    专利说明:

    Laminator apparatus
    [2] Such laminator devices are known in the art. Usually the document or flat element to be laminated with the thermoplastic is introduced into the introduction gap, compressed between the rollers, passed through the device and withdrawn. The thermoplastic material clamps the document in a clamping manner and is completely surrounded by a protective film. The combination of the lamination material and the document is withdrawn well through two opposing ejection rollers, ensures the required pressure and is second compressed and then ejected from the apparatus.
    [3] The heating element according to the prior art is a heating spiral mounted on an aluminum body which encloses at least one roller at least 180 degrees to heat the thermoplastic when drawn between the rollers.
    [4] Such laminator devices known in the prior art have the disadvantage that they require a heating time of 10 minutes to heat the rollers. The thickness of the three layers, the thermoplastic-document-thermoplastic material, can be varied by the difference in the documents. Thus, the laminator device is well adaptable, ie the upper roller is raised and pressed towards the lower roller which is arranged at a fixed axial height. The upper roller can be raised against the force of the spring when the product to be laminated is introduced between the rollers. The disadvantage of this unit is that the heat transfer from the heating spiral or upper aluminum body changes when vertical movement of the upper roller occurs due to the relative movement between the roller and the aluminum body. This changes the heat transfer, which in turn changes the temperature of the roller, which eventually leads to poor lamination.
    [5] On the basis of this prior art it is an object of the present invention to provide a laminator device which ensures good lamination results by simple means.
    [6] Another object of the present invention is to provide a laminator device which gives a faster lamination rate without dissolving the thermoplastic even when heat is applied.
    [1] The present invention comprises heating means (9, 19) having two holding parts for each of the lower and upper rollers, and heating elements (10, 20) surrounding the at least one roller and for heating the at least one roller. ), And an introduction gap between two rollers, wherein the axial position of one roller is fixed with respect to the plane of the introduction gap.
    [13] 1 is a cross sectional view of a first embodiment of the present invention;
    [14] 2 is a cross-sectional view of a laminator according to a second embodiment of the present invention.
    [15] 3 is a cross-sectional view of a laminator according to a third embodiment of the present invention.
    [16] 4 is a perspective view of a roller and heating means of the laminator according to the first embodiment;
    [7] In the laminator apparatus having the above-described characteristics according to the present invention, both rollers are surrounded by heating means, and the heating means has a predetermined position in which the inner surface thereof is associated with the corresponding roller at each point.
    [8] The position of the heating means in relation to the corresponding roller is constant. Thus, the distance between these elements can be kept constant small to control the heating input in an efficient manner. In addition, this predetermined small distance minimizes the separation effect of the air gap.
    [9] In another preferred embodiment, the heating means is provided with two different radii in two angular parts. A larger radius is provided in the region of the open end of the heating means. Since there is a smaller radius in the area above and below the roller, the radius of the heating means is chosen to be approximately equal to the radius of the roller in the heated state of the roller and the heating means. Under the cooled state the radius of the heating means is larger than the radius of the roller. An advantage of this is that material accumulating in the transition part, in particular dust, is removed by, for example, drawing paper through the device during the preheating of the device. Preferably the heating means is made of aluminum profile. It is also possible to select other materials, in particular ceramics.
    [10] In another preferred embodiment, the internal radius of curvature of the heating means varies in value. Starting at a larger first radius at the end of the heating means and continuing to decrease to a smaller second radius, preferably to a radius of the roller in the heated state, whereby the second radius or a similar radius may be It is maintained over an angular part of 90 degrees, and finally the radius extends to a larger first radius towards the second end of the heating means.
    [11] Still other preferred embodiments use the features described in the dependent claims.
    [12] The following several embodiments of the invention are described in conjunction with the description of the accompanying drawings.
    [17] 1 shows a schematic diagram of a laminator device. In Fig. 1 only the elements that are important for understanding the device are shown as a presentation table 1 which together with the output table 2 forms the path of the article to be stacked through the device. The laminator device has opposing rollers 3, 13, with slots or introduction gaps 4 provided between the rollers. The slot 4 has a height sufficient for passing two opposing sheets of thermoplastic material and a document inserted and stacked therebetween.
    [18] The rollers 3 and 13 are connected to a motor unit (not shown) for moving the thermoplastic material forward in the direction of the arrow 5. The motor unit includes at least one motor for driving the rollers 3 and 13 in reverse rotation with each other at the same speed. The discharge rollers 6, 16 are arranged in the direction of the arrow 5 behind the rollers 3, 13. The discharge roller rotates to guide the stacked material through the discharge passage 7 to the output table 2. Preferably the diameters of the discharge rollers 6, 16 are larger than the diameters of the rollers 3, 13, for example several tens of millimeters for a roller diameter of 2 cm. This makes the angular velocity of the discharge roller larger for pulling the laminated material between the discharge rollers to stretch.
    [19] Preferably, the motor unit drives the rollers 3 and 13 directly. A set of gears is provided for driving the discharge rollers 6, 16. According to another embodiment direct discharge rollers 6 and 16 are preferably connected but may be dragged.
    [20] As shown in Fig. 1, the lower rollers 3 and 6 are mounted on the fixed axis. The rollers 13, 16 are mounted on the axis of movement so that the axis can be moved in the direction of the arrow 8 when pulled up by the thermoplastic introduced into the apparatus. The rollers 13 and 16 are pressed by the springs toward the lower rollers 3 and 6 when in the stationary state as shown in FIG. In addition, the fixed rollers 13 and 16 and the rollers 3 and 6 may be installed to move in the direction of the arrow 8.
    [21] The rollers 3, 13 are mounted together with the heating means 9, 19. The heating means 9, 19 are preferably aluminum elements in the form of tubes which enclose as many rollers 3, 13 as possible. The heating means cover an angular portion of at least 270 degrees and have a constant predetermined distance 11 of several tens of millimeters (eg 1/10 to 5/10 mm) with respect to the rollers 3, 13. The heating means 9, 19 are flat on the side facing the presentation table 1 and are connected to the electric heating elements 10, 20, for example ceramic heating elements. The temperature sensor 12 is installed in the upper heating element to control the temperature of the heating means 19.
    [22] The temperature sensor 12 is connected to an integrated circuit constituting the control circuit. The control circuit may include a detection circuit for controlling the amount of heat to be transferred to the device to detect the thickness of the element to be stacked to ensure a good stacking quality. Preferably, a user switch is provided to inform the circuit of the type (thickness) of the laminated material used by the user. The quality depends mainly on the amount of heat accumulated in the document and the laminated material, and less on the temperature detected in the heating element.
    [23] The heating means 9 is fixed to the roller 3. The heating means 19 are mounted in a fixed manner with respect to the axis of rotation of the roller 13 to ensure a constant distance 11 when the roller 13 is moved in the direction of the double arrow 8. The heating means 9, 19 taper towards their free ends, thereby providing a solid portion 15 on the input side. The slot 4 is equipped with two opposing flat plates 17 and 27 in the direction of the presentation table 1. The plate ensures a preheating effect. The plates 17, 27 are connected to each heating means 9, 19 as a one-piece, so that the transverse grooves 18 are preferably flat plates 17, 27 in the region 15. It is provided to transfer heat so that the heat is mainly guided to the rollers (3, 13). All the rollers 3, 13 and 6, 16 consist of a silicone cover mounted on a thin tubular steel element. Detailed description thereof may be obtained from the description associated with FIG. 4.
    [24] The amount of heat can be controlled by controlling the distance, in particular overheating of the thermoplastic material can be avoided. This provides a faster stacking speed.
    [25] The laminated material is further compressed by the ejecting rollers 6, 16 and guided into the passage of the output slot 7 for ejection.
    [26] When thicker thermoplastics are used, a slow rotating roller sends all the heat provided by the heating means to the polyester material to effect adhesion. If thinner thermoplastics are used, the preheating plates 17, 27 speed up the operation of the device. The preheating effect of the plates 17, 27 allows the thinner polyester layer to be preheated and a faster rotating roller can add the heat needed to sufficiently heat the adhesive layer. More calories in the same time period applied to the rollers 3, 13 will result in overheating and deterioration of the laminated material when thinner thermoplastics are used. When rollers of about 12 mm radius are used, preheating of thinner thermoplastics can double the lamination process speed, i.e. up to 8 revolutions per minute, compared to the prior art.
    [27] 2 shows a cross-sectional view of a laminator according to a second embodiment of the present invention. Like reference numerals refer to like shapes. The rollers 3, 13 are equally supported as compared to FIG. 1. The heating means 19 is now supported by its weight on the roller 13. According to another embodiment a spring can be used to increase or decrease the pressure of the heating means 13 in the roller 13. There is an elastic relationship between the axis of the roller 3 and the axis of the heating means 9. A spring (not shown) presses the heating means 9 towards the roller 3 with twice the weight of the roller.
    [28] The heating means 9, 19 are generally identical to those shown in FIG. 1 with respect to the regions 14, 15 and the heating devices 10, 20. The rollers 3, 13 have a radius 30 in the heated state. In this embodiment the tubular heating means 9, 19 have an inner radius 32 equal to the radius 30 of the rollers 3, 13 in the region just above and below their axis. The inner radius 32 is shown at 31 and widens in both directions towards the free ends 14, 15, as can be seen with the gap 34. In the angular section 33 heating means 9, 19 are placed on the respective rollers 3, 13. This angle portion is at least 45 degrees, preferably 90 degrees. This achieves a good thermal contact between the rollers 3, 13 and the heating means 9, 19, which is activated immediately after operating the heating elements 10, 20, and activation during the lamination process. maintain.
    [29] 3 shows a cross-sectional view of a laminator according to a third embodiment of the present invention. The rollers 3, 13 are supported as shown in FIG. 2, and the heating means 9, 19 have their weight retained on the rollers and / or are compressed towards the rollers by the action of a spring. The heating means 9, 19 are produced in different ways. The rollers 3, 13 have a radius 30 when heated. The tubular heating means 9, 19 according to this embodiment have an inner radius 32 equal to the radius 30 of the roller in the region above and below its axis. Steps at the larger inner radius 41 are provided in both directions towards the free ends 14, 15, respectively. Thus, heating means 9, 19 are arranged in the respective rollers 3, 13 in the angular portion 43. The angular portion extends over at least 45 degrees, preferably 90 degrees. This achieves a good thermal contact between the rollers 3, 13 and the heating means 9, 19, which is activated immediately after operating the heating elements 10, 20, and activation during the lamination process. maintain.
    [30] Dust will accumulate in the area 35 of the upper roller 13 and in the area 36 of the lower roller 3. When the device is switched on in the cooled state, the dust remains on the rollers, but since the diameter of the rollers is smaller than the radius 30 shown in FIG. 3, the dust is removed as a special cleaning means, for example the first paper drawn between the rollers. Can be.
    [31] 3 shows two different angular parts 53, 63 as another alternative. The angular portion 43 provided by the heating means 9, 19 is asymmetrical and has a larger portion in terms of the direction of the material to be stacked. The angular portion with reference '53' is necessarily symmetric about the vertical axis, and the angular portion 63 is provided only on the side in the direction of the material to be stacked.
    [32] Fig. 4 shows a perspective view of the roller and the heating means of the laminator according to the first embodiment, in which the upper roller 13 is axially biased for better understanding. The rollers 3, 13 are made of silicon and are mounted on a thin steel pipe 45. A spigot 46 is fitted in the steel pipe to support the shafts 47 and 48. The connection between the bearings of the rollers 3, 6, 13 and 16 and the respective heating means 9 and 19 around each other must be precisely machined with very small tolerances, and this connection undergoes minimal thermal expansion, thus Thermal expansion should be taken into account when arranging the roller on the heating means.
    [33] In addition, a heat cover can be installed above the heating means 9, 19, eg, in centimeters, which prevents the dissipation of heated air, protects the casing from heat, and prevents heat loss. Done.
    [34] In another embodiment similar to the embodiment shown in FIG. 2 (not shown), all the heating means 9, 19 have a roller 3 in the condition that the corresponding rollers 3, 13 and the heating means 9, 19 are heated. , An inner radius slightly larger than the outer diameter of 13).
    权利要求:
    Claims (7)
    [1" claim-type="Currently amended] Two holding portions for each of the lower and upper rollers 3, 13, and a heating element 10, 20 surrounding the at least one roller and for heating the at least one roller 3, 13. One heating means 9, 19 and an introduction gap 4 between the two rollers 3, 13, wherein the axial position of one of the rollers 3, 13 is in the plane of the introduction gap 4. In the laminator device of the configuration fixed with respect to,
    The rollers 3, 13 are both heating means 9, 19 as predetermined positions 11; 30, 31: 30, 41 associated with the corresponding rollers 3, 13 at each point of the inner surface of the heating means. It is surrounded by a laminator device.
    [2" claim-type="Currently amended] 2. The heating means (9, 19) according to claim 1, wherein each heating means (9, 19) has two different radii (30, 41) at two angular parts, where a larger radius (30, 41) is used. Laminator device, characterized in that provided in the region (14, 15) of the open end.
    [3" claim-type="Currently amended] 3. The roller according to claim 2, wherein the inner radius (30) of the region (13) and (3) above the heating means (9, 19) is in the heated state of the rollers (3, 13) and the heating means (9, 19). A laminator device, which is intended to have a dimension substantially equal to the outer radius of (3, 13).
    [4" claim-type="Currently amended] 2. The radius of curvature 30, 31 in the interior of the heating means changes continuously in the region in which the heating means 9, 19 surround the rollers 3, 13, and the heating means 9, Starting at a larger first radius 31 at one end 14 or 15 of 19, there is a continuously decreasing and smaller second radius 30, wherein the second radius 30 is at an angle of at least 45 degrees. A laminator device, characterized in that it is held over the part and finally the radius (30) extends to a larger first radius (31) towards the second end (15 or 14) of the heating means (9, 19).
    [5" claim-type="Currently amended] The heating element (9, 19) according to claim 1, wherein each heating means (9, 19) has an inner radius slightly larger than the outer radius of the roller (3, 13) in the heated state of the rollers (3, 13) and the heating means (9, 19). Laminator device characterized by having.
    [6" claim-type="Currently amended] The heating means (9, 19) according to any one of the preceding claims, wherein the heating means (9, 19) are arranged in parallel to each other in parallel with the gaps (4, 27) surrounding the gap (4) arranged in the introduction direction of the material to be laminated. Laminator device comprising a).
    [7" claim-type="Currently amended] 2. The heating means (9, 19) and the heat conduction plates (17, 27) are made of one body, and the area between the heating means (9, 19) and the heat conduction plates (17, 27). Laminator apparatus (15), characterized in that a groove (18) is provided to reduce heat flowing to the heat conduction plates (17, 27).
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    同族专利:
    公开号 | 公开日
    EP1112184A1|2001-07-04|
    JP2002524309A|2002-08-06|
    WO2000013898A1|2000-03-16|
    AU5368399A|2000-03-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-09-07|Priority to CH183198
    1998-09-07|Priority to CH1831/98
    1999-09-02|Application filed by 추후제출, 이비코 트레이딩 게엠베하
    1999-09-02|Priority to PCT/CH1999/000407
    2001-08-09|Publication of KR20010074969A
    优先权:
    申请号 | 申请日 | 专利标题
    CH183198|1998-09-07|
    CH1831/98|1998-09-07|
    PCT/CH1999/000407|WO2000013898A1|1998-09-07|1999-09-02|Laminator apparatus|
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