JP2007097790A - Needle width adjusting mechanism in binding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a needle width adjusting mechanism capable of adjusting and changing the bridle width of a sewing thread. <P>SOLUTION: The binding machine has a needle bar 5 with a needle at the tip disposed at one end of an arm 3, and guiding thread loopers 11 and 12, a looper spreader 13, a thread tying mechanism 14 and a thread cutting mechanism 18 are disposed under a needle plate 10. A sewn object holder 19 consisting of a presser plate 23 and a receiving plate 22 is disposed along the upper surface of the needle plate 10 in such a way as can be reciprocated and oscillated. The groove width of long needle insertion holes 25 and 26 formed on the presser plate 23 and the receiving plate 22 respectively is formed larger than the width of parallel movement of the needle bar 5. The reciprocating oscillation of the sewn object holder 19 is interlocked with the lifting movement of the needle bar 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention relates to an automatic binding and knotting machine that binds and binds, for example, one pair of socks, gloves, clothing or underwear, labeling, price tagging, and the like.

Labels displaying materials, sizes, prices, etc. are used to bind items to be sewn, such as socks and gloves, which are in the distribution process, underwear or clothing, Is designed to be performed with chain stitches.
In the case of chain stitching, since only one thread is entangled, pulling the thread end may cause it to slip off.

Therefore, the applicant of the present invention, as a sewing machine that can be bound using a single thread, allows the needle bar to swing within a certain range with the upper end portion being the center of swinging, and the needle bar has its swing range. An automatic binding and knotting machine was proposed in which the two stitched yarns were bundled and cut together on the lower surface of the workpiece to be moved up and down while being positioned at each outer end. (Patent Document 1)
Japanese Utility Model Sho 61-77967

  However, in the above-mentioned conventional one, the needle bar advances and retreats at an angle inclined with respect to the base surface, and the needle is pierced into the sewing object in a substantially C shape. It will be fixed to the dimension which is done. In addition, in this case, since the needle must be inserted into the package, the angle of the needle with respect to the needle plate cannot be inclined so much, and the stitch width of the binding thread becomes narrow. For this reason, when binding a label that covers a wide range such as underwear and clothing, it may be necessary to bind the label at a plurality of locations.

  An object of the present invention is to provide a needle width adjusting mechanism capable of adjusting and changing the stitch width of the binding thread by paying attention to such points.

  In order to achieve the above-mentioned object, the present invention arranges a needle bar having a needle attached to the tip so that it can be moved up and down at one end of the arm and can be moved in parallel in the lateral direction. A yarn introduction looper, a yarn spreader, a yarn knotting mechanism, and a yarn cutting mechanism are arranged, and a sewing object holding tool composed of a presser plate and a receiving plate is arranged so as to be reciprocally swingable along the upper surface of the needle plate. The groove width of the long groove-shaped needle insertion hole formed on the support plate is formed larger than the parallel movement width of the needle bar, and the reciprocating rocking of the workpiece clamp is operated in conjunction with the up-and-down movement of the needle bar. In addition, the configuration is characterized in that the reciprocating rocking width of the workpiece clamping device is adjustable.

  The present invention described in claim 1 is a long groove formed in the presser plate and the receiving plate, respectively, in which a sewn product holding tool composed of a presser plate and a receiving plate is disposed so as to be reciprocally swingable along the upper surface of the needle plate. Since the groove width of the needle insertion hole is larger than the parallel movement width of the needle bar, and the reciprocating swinging of the workpiece clamping tool is operated in conjunction with the up-and-down movement of the needle bar, Since the sewn product clamping tool holding the product swings between the first and second stitches, the sewn product can be moved greatly between the first and second stitches, and the binding is finished. The thread spacing can be increased.

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a schematic perspective view showing the upper mechanism of the automatic binding machine, and FIG.
In this automatic binding machine, a head (2) is arranged on a table (1), and a needle bar base (4) translates laterally at the tip of an arm (3) of the head (2). It is possible to arrange. A needle bar (5) is assembled to the needle bar base (4) so as to be movable up and down, and a needle (6) is fixed to the lower end of the needle bar (5) so as to be replaceable.

  The needle bar base (4) is fitted on and supported by a pair of parallel slide shafts (7) disposed laterally on the front end surface of the arm (3) at a predetermined interval in the vertical direction and slidably. In conjunction with the up-and-down movement of the needle bar (5), the needle bar (5) is configured to swing back and forth via the parallel slide link (8) in a state of reciprocating once for every two reciprocations of the needle bar (5).

  A needle plate (10) having a needle insertion hole (9) is disposed on the table (1) corresponding to the raising / lowering region of the needle (6). A pair of loopers (11) and (12) are arranged on the left and right sides of the needle plate (10) in a state where the loopers (11) and (12) can be withdrawn in the front-rear direction. A thread blade (13) is disposed between the pair of loopers (11), (12) and the lower surface of the needle plate (10). This thread cutter (13) is configured such that one of the threads (T) positioned on the opposite surface side of the first looper (11) positioned on the left side and the second looper (12) positioned on the right side is replaced with the other thread side. It acts to move to. The yarn knotting mechanism (14) is arranged between the yarn saw blade (13) and the pair of loopers (11), (12) in a state where the tip portion can enter. The thread knotting mechanism (14) is composed of a cylindrical body (15) that can be withdrawn / retracted and a thread knot hook (16) that is mounted in the cylindrical body (15) so as to be movable in and out. Then, a thread clamp needle (not shown) is arranged in a state where it can be withdrawn from and retracted from a thread ring formed at the distal end of the tubular body of the thread knotting mechanism (14), and a needle plate is provided below the needle plate (10). The thread trimming knife (18) is arranged in a state where it can be withdrawn and retracted along (10).

  On the other hand, on the upper side of the needle plate (10), there is disposed a workpiece clamping device (19) that clamps the workpiece (C) and holds it in the sewing position. The sewing object clamping tool (19) is supported on the upper surface of the table (1) so as to be horizontally swingable, and is capable of swinging up and down on the receiving plate support lever (20). The support plate support lever (21) supported by the support plate, the support plate (22) fixed to the swinging tip of the support plate support lever (20), and the presser plate fixed to the swinging tip of the presser plate support lever The holding plate support lever (21) is elastically urged toward the side away from the upper surface of the receiving plate support lever (20) by the urging spring (24). The receiving plate (22) and the presser plate (23) are formed with long groove-like needle insertion holes (25), (26) wider than the lateral movement width of the needle bar (5).

  The workpiece clamp (19) is configured to swing the backing plate support lever (20) horizontally by the operation of the workpiece clamp driving mechanism (27) configured by the lever link mechanism, and to attach the presser plate (22). Based on the operation of the presser plate operating mechanism (28) acting on the end, the presser plate support lever (21) is pushed down against the biasing spring (24).

  The link member (31) that connects the output lever (30) of the sewing product clamping device drive mechanism (27) and the backing plate support lever (20) of the sewing product clamping device (19) is the sewing product clamping device drive mechanism. It is connected to a long groove (32) formed in the output lever (30) of (27) so that the position of the sewing can be adjusted, and the swing range of the sewing product holding tool (19) can be changed and adjusted.

  In this automatic binding machine, the workpiece (C) is inserted between the backing plate (22) and the presser plate (23) of the workpiece clamping device (19) to operate the presser plate operating mechanism (28). By pressing the presser plate (23) against the receiving plate (22), the workpiece (C) clamped by the workpiece clamp (19) is set on the upper surface of the needle plate (10). To do. Then, when the needle bar (5) is driven up and down, the needle (6) penetrates the workpiece (C), and the first looper ( 11) enters, and the first loop is captured by the first looper (11).

  When the first stitch is removed, the thread receiving spring (not shown) is brought into contact with the side surface of the first looper (11) to hold the thread (T), thereby holding the thread (T) and the first looper ( 11) Move down a predetermined distance. On the other hand, when the needle (6) that has moved upward and has come out of the sewing product (C) reaches the vicinity of the top dead center position, the needle bar (5) moves laterally to the position of the second needle on the right side. In conjunction with the lateral movement of the needle bar (5), the workpiece clamping device drive mechanism (27) is operated to swing the workpiece clamping device (19) horizontally on the upper surface of the needle plate (10). .

  Next, the needle bar (5) moves downward and stabs the second needle. Then, the second looper (12) enters the loop of the second needle formed on the lower side of the needle plate (10) through the second needle (6) passing through the workpiece (C), and 2 The loop of the stitch is captured by the second looper (12). When pulling out the second stitch, the thread stitch 13 enters between the pair of second stitches and brings the second stitch left side thread into a state along the first stitch.

  Next, the thread knotting mechanism (14) enters between the lower surface of the needle plate (10) and both loopers (11) and (12), and the left side of the first and second stitches are positioned along each other. By turning in a state where the yarn is hooked, two yarns are wound around the tip of the cylindrical body (15) constituting the yarn knot mechanism (14).

  From the inside of the thread knotting mechanism (14) in which two threads are wound around the tip of the cylinder (15), the thread knotting hook (16) incorporated in this thread knotting mechanism (14) advances and two The yarn tying hook (16) is retracted and held in the cylinder (15) of the yarn tying mechanism (14) while catching the yarn (T). Acting only in stages, the length of the remaining thread is determined, the thread cutter (13) is moved back and forth, and the thread trimming knife (18) advances to cut the thread.

  Next, the thread tightening needle (17) is advanced, and the thread plate formed by winding the thread around the tip of the cylindrical body (15) in the thread knotting mechanism (14) 10) Move the thread loop to the side, retract the thread knot mechanism (14) and tighten the knot, and the thread knot hook (16) incorporated in the thread knot mechanism (14) releases the thread, Tie the yarn with a single bow.

  If a thread trimming knife is incorporated into the thread tying mechanism (14) together with the thread tying hook (16) so that it can be withdrawn and retracted, and the thread hooked during the retracting operation of the thread tying hook (16) is cut, Labels and the like can be bound by round knotting.

  As described above, when the object to be packaged is sandwiched between the receiving plate (22) and the holding plate (23) and is moved laterally in conjunction with the operation of the needle bar (5), the receiving plate (22) and the holding plate are held. Since the amount of movement with the plate (23) becomes the stitch width between the first stitch and the second stitch, binding can be performed with a wide stitch width.

  INDUSTRIAL APPLICABILITY The present invention can be used for binding a pair of socks or gloves, labeling clothes or underwear, and attaching a price tag.

It is a schematic perspective view which shows the upper mechanism of a binding machine. It is a take-out front view of the binding machine. It is a taking-out perspective view of a to-be-sewn material clamping tool.

Explanation of symbols

3 ... arm, 5 ... needle bar, 6 ... needle, 10 ... needle plate, 11 and 12 ... thread introduction looper, 13 ... thread handling, 14 ... thread knotting mechanism, 18 ... thread cutting mechanism, 19 ... sewing object clamping tool , 22 ... receiving plate, 23 ... presser plate, 25/26 ... long groove needle insertion hole.

Claims (3)

A needle bar (5) with a needle attached to the tip is placed at one end of the arm (3) so that it can be moved up and down, and the yarn introduction loopers (11) and (12) and the yarn separator are placed below the needle plate (10). (13) and a yarn knotting mechanism (14) and a yarn knotting mechanism (18) arranged,
A sewn product clamping tool (19) comprising a presser plate (23) and a receiving plate (22) is disposed so as to be capable of reciprocatingly swinging along the upper surface of the needle plate (10). The presser plate (23) and the receiving plate The groove widths of the long groove-like needle insertion holes (25) and (26) formed in (22) are formed larger than the parallel movement width of the needle bar (5), and the reciprocating swing of the sewing object clamping tool (19) is achieved. A needle width adjusting mechanism in a binding machine configured to operate in conjunction with the up-and-down movement of the needle bar (5). The needle width adjusting mechanism in the binding machine according to claim 1, wherein the needle bar (5) is arranged at one end of the arm (3) so as to be movable up and down and parallel to the lateral direction. The needle width adjusting mechanism in the binding machine according to claim 1 or 2, wherein the reciprocating swinging width of the sewing product clamping tool (19) is adjustable.

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