• 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:
    A spike plate which is used mainly in joining wooden parts and which is made by punching from a strip of steel sheet a set of projecting spikes. The joining capacity of the spike plate is improved by making on the broad surface of the spikes toothing or roughening so as to increase the gripping force of the spikes. The roughening or toothing is first made on the blanking strip of the spike plate at the places where the spikes will be punched out, after which the spikes are formed. Making of the roughening is made still easier by forming the blank with elevations at the places of the spikes. In the device for making the spike plates, the roughening tool may be used as a feeding device of the blanking strip. The punches and dies of the tool forming the spikes may be placed on rollers rotating in conjunction with each other, between which the blanking strip moves at the same speed, the spikes being cut and turned from the blanking strip between the punches and dies which sequentially enter a cutting position.
    公开号:SU1269747A3
    申请号:SU823430901
    申请日:1982-04-20
    公开日:1986-11-07
    发明作者:Кархумяки Маркку；Ярвинен Рауно
    申请人:Маркку Кархум ки и Рауно Ярвинен (FI)；
    IPC主号:
    专利说明:

    tnail 1c
    O5
    with
    AI
    LZ. /
    2. A plate according to Claim 1, characterized in —the fact that an additional spike is made on one of the edges of each hole, which is located symmetrically on the edge of this hole.
    3, A method for producing a barbed plate, in which a notch is made, of at least two sections, left uncut by itself.
    The invention relates to mechanical engineering and can be used in the manufacture of barbed plate.
    The aim of the invention is to increase the reliability of the connection and reduce the cost of manufacture.
    FIG. Figure 1 shows one of the variants of the spike plate at various stages of manufacturing, top view, in fig. 2 is the same cross section; FIG. 3 shows section A-A in FIG. 2 in FIG. 4 and 5 - one of the types of spike plates, top view and side, respectively; in fig. 6 is a section BB in FIG. 5 in FIG. 7 is a section bb of FIG. 5; FIG. 8 is a side view of an embodiment of a device for making a barbed plate; in Fig.9, the coater roller of the device, side view; in fig. 10 shows a tooth of a gerocheal roller, cross section in FIG. I1 is another side view of the device; in fig. 12 - cutting tool, side view; in fig. 13 the same, axial section; in FIG. 14, the upper part of the punch in the perforated tool, side view in FIG. 15 is a cross section of the FIG. 14, in FIG. 16section Dd in fig. 14, in FIG. 17 and 18 - areas of two T-plates with spikes, cut out, but not bent.
    The spike plate is made of steel sheet 1 with spikes 2. The spike-forming material is partially detached from the plate and partially attached to the edge of the hole in the lower part of the spike. Cutting punch
    more distant one relative to the other zone, and bend the notched sections in one direction relative to the plane of the plate in the opposite direction, characterized in that the notched areas are arranged in such a way that they have one common surface and each notch is bounded by a l-shaped surface adjacent to said common surface.
    The tool is designed so that after punching the plate, it pushes the spike as a result of which it protrudes perpendicular to the plate. The spikes are arranged in more or less regular groups, in this case in rows of 3, in which the spikes 2 are formed by bending at the ends of the cut hole.
    On the flat surface of the spikes, in this case on the back side, there are transverse teeth - rough sections 4 on almost the entire length of the spike. The teeth are inclined towards the lower end of the spike, so that the spike enters the tree more easily when joined and is better kept in it. It is advisable to limit the notched area in such a way that there are no nicks at the lower end of the spike, because due to them the spike can break off during cutting.
    The spikes 2 are located on the spike plate mainly in the adjacent sections 5, the passage of the plate along the length of the plate and made by shaping the plate in such a way that part of the sections 5 are bent upwards slightly higher than the level of the plate (Figs. 2 and 3). This construction is advantageous in that the roughness (grinding) is easier and cheaper. In addition, the strength and rigidity of the thorn plate increases. The spikes can also be made in such a way that their cross-sectional profile is slightly curved towards the roughness (FIGS. 5-7), this increases the stiffness of the spikes and at the same time improves the roughness of the roughness (notches). It is also possible to make two or more spikes from one cut hole. It is more advantageous to distribute the material of spiked plastics, as a result of which the proportion of solid material in the pl. steel, while the number of spikes remains the same. The shear resistance of the plate increases. The transverse notches (roughness) are performed on strip cutting in the places where the spikes will be cut, before cutting them. A strip blank of the barbed plate is fed from the unwinder 6 to the press 7 (FIG. 8), where the cutting of the barbs is made to the blanks. The punching is performed by means of a punching tool 8 fixed in the press and containing a group of punches 9 in the corresponding punching dies 10. During operation of the tool, the punch passes through the punching plate in the appropriate shape of the die 1, as a result of which the punch is cut between each punch and die. the part of the material corresponding to the cross section of the die hole and forming a spike, bent by a punch almost perpendicular to the level of the strip blank, moreover the spike remains connected at its lower end with the edge of the cut hole, because there is a sufficiently large gap between the punch and the die at this point, as a result of which the workpiece is not cut through. The cross-section of the punch and the matrix hole corresponds to the spike shape shown in FIGS. 1 and 2, but it may have another shape corresponding to a specific gota. By means of a feeding device (not shown), the strip blank is successively fed to a cutting tool, KOTOJMJ. cuts one or several pairs of rows of spikes in each turn in the spike plate. For example, by means of the device (Fig. 8), during the consecutive movement of the strip forward, two pairs of dbv spikes (Fig. 1) are cut down at one time in it. Before cutting the spikes, rough sections 4 are made along the strip, i.e. in the feed direction, the grooves, which are mainly transverse or diagonal with respect to the strip length, have teeth or combs, for example, with a gap of 1-3 mm. These sites are located on the strip in those places where the spikes will be cut down. Thus, the spikes have transverse notches. The proposed method provides an economical performance of the chipping on the flat surface of the spikes. As shown in FIG. 1, in the right-hand part of the barbed plate, the notches can also be made successively at the sections corresponding to the length of the spikes in which the spikes have not yet been cut. When chipping roughness) by rolling or stamping, the strength of the material of the plate is increased, as a result of which the strength of the finished spike plate also increases, and a thinner plate material can be used. Thus, a reduction in raw material costs is provided. Usually, the notches are made only on one side of the plate blank, on the side where the spikes protrude, since when cutting a thorn out of the plate, the end face of the cutting tool smooths out the roughness on one side. To ensure that the punched plate moves forward quietly, the punches 9 at the piercing position are located below the strip blank, and the dies 10 are above it (Fig. 8), so that the spikes protrude and the pierced piece can be more easily advanced to the next position where the strip is cut. at the required lengths by means of bran punch 11 of sequential action. In order to grind the roughing of the strip blank, the curling tool 12 is placed on the cutting press or in front of it before the cutting tool 8, the roughing tool has rolls 13 and 14 rotating in bearings with parallel 5 axes 3-fastened on a common body. At the same time, it should be possible to adjust the position of the height of at least one of the wafers in accordance with the thickness of the strip blank that is set to pass between the rollers, as well as sufficient compression between the rollers so that the teeth of the roughing roller cut into the surface of the plate being roughened. teeth placed in the tool above, and a smooth opposite roll - under it (Fig, 8 Rough-cut tool 12 can be placed so that it simultaneously acts as an arrangement The tool for feeding the workpiece from the unwinder 6 to the punching tool 8. To straighten the strip before reaching it to the roughing HHctpyMeHTy, it must be passed through the rule of the new device 15 containing several consecutive rolls. The roughing tool 12 in this case can be attached at the end. In order that the scrubbing tool could operate as a feeding device, it is provided with drive parts for rotating the pairs of rolls in series in accordance with the length of the feed. The feed must occur during the return stroke of the cutting tool and stop during the stroke. Rough surface pattern. The roll contains a set of adjacent sections 16 and 17 of the outer cylinder, cut like a saw blade. Each second section 16 has parallel teeth, and the sections 17 located between them have teeth, which run in the opposite direction. This is done in order to perform the roughness on the back side of the machine, at which the spike easily enters the wood, but the holding force against pulling is considerable. This also requires the construction of a thorn plate, in which every second spike is right (if you look: from the side) and every second left. The roughing roller (Fig. 9) may be made of a composite of discs with a hole in the center, the width of which corresponds to 47 transverse spines and which are tempered, polished and fixed on both axes, after which the shears on the outer surface are ground on all drives at the same time. Then this combination of disks is split and every second disk is turned in combination so that the teeth of these disks are directed in the opposite direction with respect to other disks, after which the combination of disks can be tightened on a common axis, for example, by means of a screw. The roughing teeth of the roll can be relatively dense and low, for example, the tooth height is about 0.2-0.5 mm and the pitch is 1-3 mm (Fig. 10). The described Roughing Roller is one of the options of the roughing tool. Roughing can be performed with other types of tools. A tool having a notched blade similar to that used to make files can be used. Roughing can also be done by machining to form chips. The method of operation and the design of the roughing tool depend on the method of punching ETIPOV spike plate on the strip blank. The spikes can also be located across the strip blank, with the roughness teeth on their surface running along the strip in the longitudinal direction so that they are transverse on the spikes. In this case, a rough tool can be used in which the grooves go in the same direction. Roughing can be done by punching by means of special rough stamping dies, which stamp the roughness pattern on the strip blank of the tenon plate at the site of each tenon before cutting down the pinching. This tool can be made with the possibility of attaching it to the tool dp punching spikes. The roughness pattern is completed at the ends of this tool, with the cutting tools acting on the flat surface of the opposite matrix. Roughness can also be implemented on both sides of the skin. one
    thin plates, especially when the spikes are made so that they protrude in turn on both sides of the plate.
    When using the proposed method, the roughness on the workpiece of the thorn plate can be performed at the factory associated with this production, or in a separate position remote from the press for the spike plates,
    The effectiveness of the roughness enhancement operation is enhanced by performing continuous or successively elevated elevated sections passing along each other along the length of the workpiece or along the roughness length through the places where the spikes should be cut. This operation is performed prior to roughing, and its purpose is to reduce the mechanical effect on the roughing tool. At the same time, the working force or the working force required for roughing is reduced compared to roughing performed by e-: on a workpiece with a completely flat surface, in which the teeth of the tool must penetrate the material to be shaped along the edges of the cutting or forming edges. . On the spike plate sheet 1 (Fig. 3), elevated sections 5 arranged adjacent to each other, protrude from the plate surface approximately by the plate thickness. This type of shaping of the plate blank is accomplished with the aid of known groove-forming rollers or the like. The rollers can be mounted on a common axis with an adjustable gap between them.
    The elevation of the sections 5 facilitates the roughness of the strip blank directly, and also indirectly has utility for the tool, in that the teeth of the tool can be uniform and continuous in the direction of the axis. In this case, the wear of the tool is compensated by moving it in the direction of the axis for putting into operation the unused part of the tool. This increases tool life.
    The strip blank is fed from the unwinder 6 to the press 7. In the embodiment of the device (Fig. 11), the first position contains the correct device 15 and
    69,747. eight
    profiling rollers 18, which can act as a punching device for applying production numbers and marks to the product. A pair -j of profiling rollers performs on the strip elevated sections 5 (elevations. Then tool 12 performs a roughness pattern. Gatherer tool can be 10 pair of rolls, chopping (cutting) or cutting tool. At the next working position - cutting position of the spikes are located drum 19 with punches and drum 20 with dies,
    15 rotating in opposite directions, almost in contact with each other, on the periphery of which punches 9 and dies 10 are placed with a pitch around the circumference corresponding to
    Twenty pitch rows of spikes, as a result of which, when the drums are rotated at a constant speed, the corresponding punches and dies exactly meet each other. Sheet I of thorn plates is moved between the drums with punches and dies with the same speed. At this, cutting of thorns occurs not in steps, but continuously. When cutting out thorns from their plistina
    0, the lower ends remain connected to the workpiece. The protrusion of the spikes outwards is provided by creating a suitable punch profile and die corresponding to the profile of the lower part of the spike. The rotation of the drums is accomplished by, for example, a gear. Punches and dies used in cutting the spikes are placed on the periphery of the drums with a pitch corresponding to the spacing of the rows of spikes.
    The rows of spikes of the thorn plate (Fig. 1) are arranged perpendicular to the length of the strip blank. Adjacent spikes are folded down when cutting to opposite sides of a row. Thanks to this placement, the load on the spikes is distributed more evenly over the plate.
    Rows of spikes may be located on a strip in a diagonal direction. At the same time, punches and dies are placed on drums 19 and 20, respectively, in diagonal rows. The diagonal arrangement of rows is advantageous because the load on the tools is distributed more evenly, because
    9
    that the tools of the p is coming to the cutting position c. equal time
    When the punches and the corresponding matrices are placed on the drums rotating towards each other, between which the strip workpiece is moving, the service life of the instruments is significantly increased. Vibrations and noise caused by sharp impulses that have a harmful effect on employees, machines and equipment are excluded. In addition, the continuous movement of the strip stock ensures a large number of products per unit of time, which, with good quality, gives great benefits.
    In the proposed design of the rotating punching tool (Figs 12 and 13) the drum 19 with punches is below (and the drum 20 with dies above it shows only one row of punches and dies for clarity). The diameter of the drums 19 and 20 should be large enough so that when the cutting tool comes in contact with the surface of the strip blank, the contact angle is small “
    The drum with punches can be made of a composite of fastening discs 21 and intermediate discs (plates) 22 between them fixed to a common axis, for example, by means of a bolt. The thickness of the discs 21 and 22 is determined on the basis of a mutual transverse gap between the punches. To secure the punches to the periphery of the disk 21, evenly spaced radial grooves 23 are provided, which are made with relatively precise tolerances so that the holders of the punches fit them with sufficient accuracy. Parts may also be provided for locating punches in their places (not shown). The clamping of the punches in their places is carried out in this case by tightening the entire row of punches by means of a bolt (shown by the dotted line 24). In this case, the thickness of the punch is slightly larger than the disks 21, so that the punches can be clamped between the disks 22.
    The fixed matrix drum 20 may have a similar construction, containing a set of discs
    ABOUT
    for fixing the matrices and intermediate discs between them. The drum for the dies (Fig. 12 and 13) does not have separate
    counter drums with a hole corresponding to the cross section of the punch, and the dies are formed by several discs and intermediate discs between them, which
    arranged in groups on a common axis and fixed near the peripheral surface by means of bolts parallel to the axis. Intermediate discs are slightly smaller in diameter than i
    discs of dies, and have a thickness of about a gap for cutting more than the thickness of the punch. Thus, the dies are formed on the periphery of the matrix discs at the slot between adjacent disks, to which the punch at the cutting stage fits. Since the cutting in the case of the thorn plate is very narrow, such a matrix satisfies the requirements
    despite the fact that the groove is open longitudinally. Matrix discs are hardened on a peripheral surface and are easily sharpened by round grinding. The described design
    the tool is advantageous to maintain since this tool is easily sharpened and its installation does not require high precision.
    The action of the punch is shown as
    in FIG. 12, when it cuts a spike in the spike plate and strikes the plate during rolling motion. The end surface of the punch is beveled, so that it starts cutting
    from the tip of the thorn. At the same time, the cutting continues in the direction-and towards the lower part of the spike during the mutual movement of the rolling of the punch and the die, and at the end of the cutting, the spike is bent in
    position almost perpendicular to the workpiece.
    In accordance with the variant of FIG. 47), the spike plates are cut so that from one cut hole
    two spikes are formed: a long spike 25 and a short spike 26. The tips of the spikes are beveled in different directions. When the spikes are of different lengths and opposed, the pressing force on the spike plate is distributed more evenly when joined, so that the indentation occurs without any disturbances. The raised profile of the cross section (Figs. 5-7) increases the stiffness of the spikes and the strength of their retention. The cutting of thorns by the proposed method is performed by means of punches (Fig. 14-16). On the end surface of the punch, a bevelled edge 27 is formed, which at the first cutting stage makes an oblique cut forming the tip of the spike. After that, the outer side edges 28 of the punch face make lateral cuts of the long tongue 25, and the profile edge 29 together with the end portion of the edges 28 bends the tongue out. The cutting of the short tongue 26 starts somewhat after the cutting of the tongue 25, because the edges 30 start cutting after cutting edges 28 due to height difference. Together with the edges 30, a profile face 31 is also provided, which bends the spike outward at the final stage of cutting. The end face of the punch between the edges 28 and 30 can be made convex, with the result that the profile of the spikes is convex in cross section. After the spikes are formed between the drums with punches and dies, when they are rotated together and when the workpiece is moved at an appropriate speed, spikes are rectified, which may be tilted. This is done by a pair of rollers, of which one roller 32 has a cylindrical profile, and the other roller 33 has involute grooves, like those of a gear wheel, surface, but the depression between the teeth is narrower. The pitch corresponds to the distance between the rows of thorns. When the spikes meet with the hollows between the teeth, they straighten out and become almost rig. A7 is perpendicular to the plate surface position. After the height of the spikes, the billet is cut into the required lengths. This is done by means of a pair of cut rolls FOR and 35, located above and below the workpiece and provided with mutually opposing blades 36 and 37, distributed around the circumference in accordance with the required length of segments. The blades are set so that when the pair of rollers rotates at a constant speed corresponding to the translational speed db of the workpiece, they come into contact with each other, forming a cross-cutting pair, with the result that the workpiece is cut. If necessary, rolls with blades can be changed. As a bran tool, other types of known tool structures can be used. The proposed method and apparatus are suitable for making many types of tenon plates. As an example in FIG. 17 and 18 show other forms of studs of a thorn plate, in the manufacture of which the invention may be used. With regard to the strength of the spike plate, it is advisable to use structures in which two or more studs are formed from a single punched hole. For these structures, it is easy to apply the roughness of the Schroch flat surface in accordance with the invention. Spike plates can be made in which the solid sections between the punched holes are much wider, as a result of which the transverse shear strength will increase significantly.
    S.
    222225
    Fig.Z
    .26
    , /
    . five
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    Bb b. AA
    FIG 4
    25
    BB-8
    .6
    pt4Z .. 7
    L5


    X
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    , /
    /five
    .eight
    . f3
    Yr
    23

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    权利要求:
    Claims (3)
    [1]
    1. A stud plate used as a fastener of FIG. 7 for connecting wooden elements, containing <Containing base with relief strips having holes, on the edges of each of which at least two opposing spikes with convex and concave sides are made, characterized in that, in order to increase the reliability of the connection and reduce costs for manufacturing, the spikes located on the edge of one hole are offset relative to each other across the embossed strip, one side of these spikes is located in a common plane that cuts the hole along the embossed strip.
    SU 1269747 AZ
    [2]
    2.-Plate on π. 1, characterized in that an additional spike is made on one of the edges of each hole, which is located symmetrically to the spike existing on that edge.
    [3]
    3. A method of producing a tenon plate in which at least two sections are cut, leaving the most remote one relative to the other areas not cut, and the cut sections are bent in the opposite direction relative to the plane of the plate, characterized in that the cut sections have so that they have one common surface and each cut is bounded by a L-shaped surface adjacent to the specified common surface.
    类似技术:
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    同族专利:
    公开号 | 公开日
    GB2094920B|1984-07-04|
    SE441844B|1985-11-11|
    NO159543B|1988-10-03|
    DK516381A|1981-11-20|
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    FI800877A|1981-09-22|
    DE3140630A1|1982-05-19|
    FI821356L|1982-04-20|
    FI821356A0|1982-04-20|
    DE3140630C2|1993-10-28|
    NO813944L|1981-11-20|
    FI65643C|1985-01-15|
    SE8202424L|1982-04-19|
    AU6922981A|1981-10-09|
    DK151718B|1987-12-28|
    US4527933A|1985-07-09|
    DK151718C|1988-06-27|
    LV5546A3|1994-03-10|
    WO1981002759A1|1981-10-01|
    GB2094920A|1982-09-22|
    NO159543C|1989-01-11|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI800877A|FI800877A|1980-03-21|1980-03-21|FOER FARANDE OCH ANORDNING VID TILLVERKNING AV SPIKPLATTOR ELLER DYLIKA|LV930661A| LV5546A3|1980-03-21|1993-06-28|Radish plate and its manufacturing tolerance|
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