JP3195663U - Sock stitching device - Google Patents

Abstract

A sock stitching device capable of controlling folding and rotating motions of a fixed holding frame and a movable holding frame that hold an annular opening edge of a semi-finished sock product with a simple configuration. A sock stitching device for stitching an annular opening edge of a sock semi-finished product with a suturing means while holding the sock semi-finished product with the retaining means. A folding frame 11 arranged next to the fixed frame so that it can rotate, a fixed holding frame 12 and a movable holding frame 13 that hold the annular opening edge, and a folding motion of the movable holding frame with respect to the fixed holding frame. A driven gear 141 fixed to the movable holding frame, an interlocking gear 142 attached to the rotating frame, and a folding drive mechanism 15 that controls the drive via an interlocking loop 143 that spans both gears. . [Selection] Figure 4

Description

  The present invention relates to a sock stitching device, and more particularly, to a sock stitching device having a simpler configuration than a conventional sock stitching device.

  For the production of socks, conventionally, for example, a semi-finished product that is tubular and open at both ends is formed by a knitting machine, and then transferred to a stitching machine to sew the opening at one end corresponding to the part of the semi-finished product that wraps its toes. Created to go.

  Patent Document 1 discloses an example of the above-described stitching machine, and the stitching machine is arranged on a pair of semicircular holding seats that are pivoted so as to be able to be folded on each other, and the pair of semicircular holding seats. A plurality of male fixed teeth and a plurality of female fixed teeth.

  When the semi-finished product produced by the knitting machine is transferred to the stitching machine by a predetermined conveying means, one end corresponding to the part of the semi-finished product that wraps its toes is temporarily held by the conveying means and faces each other to form a substantially circular shape. A plurality of male fixed teeth and a plurality of female fixed teeth arranged on a pair of semicircular holding seats receive the one end of the semifinished product from the conveying means, and the opening edges of the one ends are respectively paired with the semicircular holding seats. After the holding, the pair of semicircular holding seats are folded so that the opening edges held by the pair of semicircular holding seats overlap each other and sew together to wrap the toe. Closed configuration.

  Patent Document 1 does not disclose a configuration for controlling a state in which the pair of semicircular holding seats are substantially circular and a state in which they are folded. On the other hand, as an example of using a pair of semicircular holding seats, Patent Document 2 discloses a configuration example in which control is performed by a pneumatic cylinder and a plurality of links. However, this configuration is complicated and requires a large space.

  Moreover, in patent document 1 and patent document 2, when the opening edge of the piled semi-finished product is piled up and stitched together, the sewing needle reciprocates at a predetermined position and a pair of semicircular holding seats holding the opening edge rotate. However, the detailed configuration for rotationally driving the semicircular holding seat is not described in Patent Document 1 and Patent Document 2. On the other hand, a stepping motor is usually used to rotate such a semicircular holding seat. However, since the opening edge is sewn with a sewing needle, the step width that rotates at a time is fine, and thus the number of pulses of the stepping motor / Since the frequency becomes high, the cost of using such a stepping motor is high, and the damage rate is also high.

Taiwan Patent Application Publication No. 20114506 US Patent Application Publication No. 2004/0211226

  In view of the above problems, an object of the present invention is to provide a stitching machine that can control folding of a holding seat with a simple configuration.

  In order to achieve the above-mentioned object, the present invention holds an annular opening edge at one end of a sock semi-finished product made into a tubular shape by a sock knitting machine with a holding means, and rotates the holding means with a suturing means. A sock stitching device for stitching the annular opening edge to seal the opening, wherein the holding means is arranged next to the fixed frame and the fixed frame so as to be rotatable with respect to the fixed frame. A rotating frame that is formed in a half frame shape, and is configured to be able to hold one half of the annular opening edge of the sock semi-finished product and is fixed to the rotating frame A holding frame and a fixed frame that is formed in a half frame shape like the fixed holding frame and configured to hold the periphery of the other half of the annular opening edge of the sock semi-finished product. A receiving position for receiving and holding the annular opening edge of the sock semi-finished product, both of which are in the form of a frame, overlapping the fixed holding frame and holding the sock semi-finished product held by the fixed holding frame; The fixed holding frame so that it can be switched between a sewing position in which the periphery of one half of the annular opening edge and the periphery of the other half of the annular opening edge of the sock semi-finished product held by the annular opening edge overlap each other. A movable holding frame pivotally supported by the movable holding frame, and the pivot support of the movable holding frame in the fixed holding frame includes a pair of pivot supporting seats protruding from the fixed holding frame and the pair of pivot supporting seats, respectively. A pair of pivot shafts projecting so as to face each other, and a pair of pivot rings projecting from the movable holding frame so as to be inserted through the pair of pivot shafts. The holding means is A driven gear fixed to one of the pair of pivot rings of the movable holding frame, an interlocking gear attached to the rotating frame so as to be rotatable, the driven gear and the interlocking gear; An interlocking loop that is suspended; and a folding drive mechanism that drives the driven gear that is interlocked with the interlocking loop by driving the interlocking loop, wherein the suturing means includes the rotation driving means. The annular shape of the sock semi-finished product that is held so as to overlap with the fixed holding frame and the movable holding frame in accordance with the rotation of the fixed holding frame and the movable holding frame of the holding means rotated by driving A sewing needle that can sew the periphery of one half of the opening edge and the periphery of the other half of the annular opening edge of the sock semi-finished product; Provided is a sock stitching device configured to control switching between the receiving position and the stitching position of the fixed holding frame and the movable holding frame by rotating a driven gear. .

  According to the above configuration, the present invention is the driven gear fixed to the movable holding frame, the interlocking gear attached to the rotating frame so as to be rotatable, and the interlocking that is suspended between the driven gear and the interlocking gear. A fixed holding frame and a movable holding frame are configured by using a loop and a folding driving mechanism that drives a driven gear that is linked to the interlocking loop by driving the interlocking loop, and rotating the driven gear by the folding driving mechanism. It is possible to control switching between the receiving position and the stitching position.

It is a side view in which the external structure of the whole sock stitching apparatus of this invention is shown. It is a perspective view in which the internal structure of the whole sewing device of the sock of this invention is shown. FIG. 3 is a partially exploded view showing a configuration of a fixed holding frame and a movable holding frame of a holding unit included in the sock stitching device of the present invention. It is explanatory drawing by which the structure of the folding drive mechanism and support drive mechanism which the sewing device of the sock of this invention has is shown. It is an exploded view in which the structure of the folding drive mechanism and the support drive mechanism which the sewing device of the sock of this invention has is shown. It is explanatory drawing by which the operation | movement state structure of the folding drive mechanism and support drive mechanism which the sewing device of the sock of this invention has is shown. It is a top view by which the structure of the rotation drive mechanism which the sewing device of the sock of this invention has is shown. It is an exploded view in which the structure of the rotation drive mechanism which the sewing device of the sock of this invention has is shown. It is explanatory drawing by which the holding | maintenance means which the sewing device of the sock of this invention has receives the sock semi-finished product from a conveyance means. It is explanatory drawing by which the holding | maintenance means which the sewing device of the sock of this invention has receives the sock semi-finished product from a conveyance means. It is explanatory drawing by which the holding | maintenance means which the sewing device of the sock of this invention has receives the sock semi-finished product from a conveyance means. It is explanatory drawing by which the holding | maintenance means which the sewing device of the sock of this invention has receives the sock semi-finished product from a conveyance means. It is explanatory drawing in which the movable holding frame of the holding means which the sock stitching device of the present invention has is driven by the folding drive mechanism and the support drive mechanism. It is explanatory drawing in which the holding pin attached to the fixed holding frame and movable holding frame of the holding means which the sewing device of the sock of this invention has is shown when the fixed holding frame and the movable holding frame are folded. It is explanatory drawing in which the holding pin attached to the fixed holding frame and movable holding frame of the holding means which the sewing device of the sock of this invention has is shown when the fixed holding frame and the movable holding frame are folded. It is explanatory drawing in which the movable holding frame of the holding means which the sock stitching device of the present invention has is driven by the folding drive mechanism and the support drive mechanism. It is explanatory drawing by which a mode that the sock semi-finished product hold | maintained by a holding pin is piled up when the fixed holding frame of a holding means and the movable holding frame which the sewing device of the sock of this invention has overlapped is shown. It is explanatory drawing in which a mode that the stitching | suture means which the sewing device of the sock of this invention has stitched up socks semi-finished products is shown is shown. It is explanatory drawing by which a mode that the rotation drive mechanism which the stitching | suture apparatus of the sock of this invention has operates is shown. It is explanatory drawing by which a mode that the rotation drive mechanism which the stitching | suture apparatus of the sock of this invention has operates is shown. It is explanatory drawing by which a mode that the rotation drive mechanism which the stitching | suture apparatus of the sock of this invention has operates is shown. It is explanatory drawing by which a mode that the rotation drive mechanism which the stitching | suture apparatus of the sock of this invention has operates is shown.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view showing the external configuration of the entire sock stitching apparatus of the present invention, and FIG. 2 is a perspective view showing the internal configuration of the sock stitching apparatus as a whole. FIG. 3 is a partially exploded view showing the configuration of the fixed holding frame and the movable holding frame of the holding means of the sock stitching apparatus.

  The sock stitching device of the present invention receives an annular opening edge at one end of a sock semi-finished product made into a tubular shape by a sock knitting machine from the conveying means 4 (see FIG. 9) and holds it by the holding means 1, and also rotational driving means. 2 is a sock stitching device for stitching the annular opening edge by the stitching means 3 and sealing the opening while the holding means 1 is driven to rotate.

  As shown in FIGS. 1 and 2, the holding unit 1 includes a fixed frame 10, a rotating frame 11 disposed next to the fixed frame 10 so as to be rotatable with respect to the fixed frame 10, and A fixed holding frame 12 formed in a half frame shape and configured to hold one half of the annular opening edge of the sock semi-finished product, and fixed to the rotating frame 11; Similar to the frame 12, there is provided a movable holding frame 13 which is formed in a half frame shape and configured to hold the other half of the annular opening edge of the sock semi-finished product.

  In this embodiment, the fixed frame 10 is disposed between the upper support base 101, the lower support base 102 disposed below the upper support base 101, and the upper support base 101 and the lower support base 102. It is a frame body having a plurality of connecting pillars 103 that connect the support base 101 and the lower support base 102.

  The rotating frame 11 is a casing formed in a substantially cylindrical shape along the axis L (see FIG. 1). In this embodiment, the rotating frame 11 is disposed inside the fixed frame 10, and A bearing 104 is interposed between the lower support base 102 and the shaft 104 so as to be rotatable about the axis L as a rotation axis with respect to the fixed frame 10 which is fixedly arranged.

  The fixed holding frame 12 is fixed to the opening end of the lower end of the rotating frame 11 which is a casing formed in a substantially cylindrical shape, and the movable holding frame 13 forms a frame shape together with the fixed holding frame 12 and the socks A receiving position (see FIG. 4) for receiving and holding the annular opening edge of the semi-finished product, and the annular opening edge of the sock semi-finished product held by the fixed holding frame 12 so as to overlap the fixed holding frame 12 Fixed so that it can be switched between a stitching position (see FIGS. 13 and 16) where one half of the circumference and the other half of the annular opening edge of the sock semi-finished product held by itself overlap. The holding frame 12 is pivotally supported. As shown in FIGS. 1 and 2, one frame formed by the fixed holding frame 12 and the movable holding frame 13 at the receiving position is orthogonal to the axis L that is the rotation axis of the rotating frame 11. ing.

  Further, as shown in FIG. 3, the fixed holding frame 12 and the movable holding frame 13 are each formed in a semicircular shape, and one frame formed by combining both at the receiving position is a circular shape. The fixed holding frame 12 is fixed to the rotating frame 11 so that the axis L which is the rotation axis of the rotating frame 11 passes through the circle center. A plurality of first receiving grooves 170 are formed in the outer peripheral surface 120 of the fixed holding frame 12, and one first holding pin 17 is attached to each first receiving groove 170 (in FIG. 3). For clarity, only one first holding pin 17 is shown). Similarly for the movable holding frame 13, a plurality of second receiving grooves 180 are formed in the outer peripheral surface 130 of the movable holding frame 13, and one second holding pin 18 is provided in each second receiving groove 180. (Only one second holding pin 18 is shown in FIG. 3 for ease of viewing).

  The fixed holding frame 12 and the movable holding frame 13 use the plurality of first holding pins 17 and the plurality of second holding pins 18, respectively, to make the periphery of one half of the annular opening edge of the sock semi-finished product. It can be held.

  Further, as shown in the figure, the pivotal support of the movable holding frame 13 on the fixed holding frame 12 is such that the opening end portion on which the fixed holding frame 12 of the rotating frame 11 is attached is directed from the fixed holding frame 12 (that is, , And a pair of pivot shafts 122 projecting from each of the pair of pivot seats 121 to face each other, and a pair of pivot shafts 122. It is made by correspondence with a pair of pivot rings 131 protruding from the movable holding frame 13 so as to be able to be. Further, when it is turned to one of the pair of pivot rings 131 protruding from the movable holding frame 13, the pair of pivot shafts 122 fixed to the fixed holding frame 12 together with the movable holding frame 13 is rotated as a rotation axis. A driven gear 141 that can switch between the receiving position and the stitching position of the fixed holding frame 12 and the movable holding frame 13 is fixed.

  The rotation driving means 2 rotates the holding means 1, and is arranged on a rotating disk 21 formed in a substantially disk shape and fixed to the rotating frame 11, and an upper support base 101 of the fixed frame 10. In addition, a plurality of rotation drive mechanisms 22 configured to be able to rotate the rotating disk 21, the rotating frame 11, and the fixed holding frame 12 by drawing the rotating disk 21 from the outer periphery of the rotating disk 21. It is equipped with.

  The stitching means 3 is held by the fixed holding frame 12 and the movable holding frame 13 so as to overlap with the rotation of the fixed holding frame 12 and the movable holding frame 13 of the holding means 1 that is rotated by driving of the rotation driving means 2. A sewing needle 31 that can sew the periphery of one half of the annular opening edge of the sock semi-finished product and the periphery of the other half of the annular opening edge of the sock semi-finished product. This will be described below with reference to FIGS. 17 and 18.

  Next, a folding drive mechanism that controls switching between the receiving position and the stitching position of the fixed holding frame 12 and the movable holding frame 13 will be described in detail with reference to FIGS.

  4 to 6 are explanatory views showing the configurations of the folding drive mechanism and the support drive mechanism of the sock stitching device of the present invention. As shown in the figure, the holding means 1 is provided in the movable holding frame 13. A driven gear 141 fixed to one of the pair of pivot rings 131, an interlocking gear 142 attached to the rotating frame 11 so as to be rotatable, and the driven gear 141 and the interlocking gear 142 are suspended. The interlocking loop 143, the folding driving mechanism 15 that drives the driven gear 141 that interlocks with the interlocking loop 143 by driving the interlocking loop 143, and the support driving mechanism 16 are further provided.

  By rotating the driven gear 143 by the folding drive mechanism 15, switching between the receiving position and the stitching position of the fixed holding frame 12 and the movable holding frame 13 is controlled.

  In this embodiment, the interlocking loop 143 is an interlocking chain disposed in the cylinder of the rotating frame 11 that is a casing formed in a substantially cylindrical shape, and the interlocking loop 143 is substantially parallel to the axis L. Further, corresponding to the axis L, the interlocking gear 142 is disposed above the driven gear 141 inside the rotating frame 11.

  In this embodiment, the folding drive mechanism 15 that drives the driven gear 141, the interlocking gear 142, and the interlocking loop 143 is arranged along the fixing portion 151 that is fixed to the rotating frame 11 and the direction substantially parallel to the axis L. The pressure cylinder has a movable portion 152 that can reciprocate with respect to the fixed portion 151 and is attached to the interlocking loop 143. The movable portion 152 is connected to the interlocking loop 143 via a fork 153 inserted into the interlocking chain 143. By moving the interlocking chain 143 by reciprocating movement of the movable part 152 relative to the fixed part 151 to rotate the driven gear 141, the movable holding frame 13 that rotates together with the driven gear 141 is controlled to control the fixed holding frame 12. And the movable holding frame 13 are controlled to be switched between the receiving position and the stitching position.

  On the other hand, the support drive mechanism 16 includes a movable block 161 attached to the interlocking loop 143 with a fork 163 inserted into the interlocking chain 143 so that the support driving mechanism 16 can reciprocate substantially parallel to the axis L, and the movable block 161 and the casing. And an urging means 162 interposed between the rotating frame 11. The urging means 162 includes a movable holding frame 13 to which the driven gear 141 is fixed via a movable block 161, a linked loop 143 to which the movable block 161 is attached, and a driven gear 141 linked to the linked loop 143. It is possible to apply a momentum for switching from the stitching position to the receiving position.

  For example, as shown in FIG. 6, the rotation direction of the driven gear 141 corresponding to the operation in which the movable holding frame 13 is switched from the stitching position to the receiving position is clockwise, and the driven gear 141 is rotated clockwise. The movement of the interlocking loop 143 corresponding to the rotation is such that the right side is from the interlocking gear 142 to the driven gear 141 (from top to bottom), and the left side is from the driven gear 141 to the interlocking gear 142 (from bottom to top). The urging means 162 of the support drive mechanism 16 disposed on the left side of the interlocking loop 143 uses a tension coil spring that applies a downward force to the movable block 161.

  FIG. 7 is a top view showing the configuration of the rotational drive mechanism of the sock stitching device of the present invention, and FIG. 8 is an exploded view showing the configuration of the rotational drive mechanism of the sock stitching device.

  As shown in the figure, the rotation driving means 2 further includes a pressure cylinder 23 that moves in accordance with each rotation driving mechanism 22. Incidentally, as shown in FIG. 7, in this embodiment, the number of the rotary drive mechanisms 22 is four, and four pressure cylinders 23 for moving the four rotary drive mechanisms 22 are provided.

  In this embodiment, the turntable 21 is a gear in which a plurality of teeth 211 and a tooth groove 212 between teeth are formed on the outer peripheral edge, and each rotation drive mechanism 22 is fixed frame 10 respectively. The pivot end 220 is pivotally supported by the pivot end 220 and the swing arm 221 extends from the pivot end 220, and swings when the pivot end 220 rotates relative to the fixed frame 10. The operating protrusion 222 protruding from the swing arm 221 is fitted into the tooth groove 212 formed on the outer peripheral edge of the rotating disk 21 and the teeth 211 formed on the rotating disk 21 are moved to rotate the rotating disk 21. It is configured. Each pressure cylinder 23 corresponds to a cylinder 230 fixed to the fixed frame 10 so as to be arranged next to the swing arm 221 of each rotation drive mechanism 22 and to protrude from the cylinder 230 so as to expand and contract. The piston rod 231 is configured to be able to push and move the swing arm 221 of the rotation drive mechanism 22.

  Further, in this embodiment, the operation protrusion 222 of each rotation drive mechanism 22 is movably attached to the swing arm 221 by forming the play 223, and the swing arm 221 is a piston of the pressure cylinder 23. When pushed by the rod 231, it is fitted into a tooth groove 212 formed on the outer peripheral edge of the turntable 21 to draw around the turntable 21, but when the piston rod 231 of the pressure cylinder 23 does not push the swing arm 221. The rotary disk 21 can be retracted to the outside of the tooth gap 212, and when the pressure cylinder 23 pushes and moves the swing arm 221 of the rotation drive mechanism 22 with the piston rod 231, the swing arm 221 is attached. The operating protrusion 222 can rotate the rotating disk 21 while moving in the play 223, and the rotation driving mechanism 22. So as not interfere with the rotation of the rotating disk 21 retreats until the tooth space 212 outside of the rotating disk 21 when not pressed by the piston rod 231 of the swing arm 221 is a pressure cylinder 23.

  Next, FIGS. 9 to 12 are explanatory views showing a method in which the holding means 1 of the sock stitching device of the present invention receives the semi-finished socks product from the transport means 4.

  As shown in the drawing, the transport means 4 included in the sock stitching device of the present invention has a horizontal arm portion 411 extending substantially horizontally and a vertical arm portion 412 extending downward from the tip of the horizontal arm portion 411, and is vertical. The arm part 412 is arranged so as to be able to sandwich the insertion arm 41 that can be inserted into the gap of the loop 320 formed by the yarn constituting the sock semi-finished product and the vertical arm part 412 of the insertion arm 41. A plurality of arm sets 40 including a pair of holding arm portions 421 and a holding arm 42 that can hold a loop 320 of a sock semi-finished product inserted by the insertion arm 41 from below. .

  On the other hand, as described above, the plurality of first holding pins 17 and the plurality of second holding pins 18 are respectively attached to the fixed holding frame 12 and the movable holding frame 13 that receive the sock semi-finished product from the conveying means 4. In order to make it easy to see in FIG. 9, one first holding pin 17 and one second holding pin 18 correspond to the first holding pin 17 and the second holding pin 18, respectively. Only the arm set 40 of the transport means 4 is shown, and the fixed holding frame 12, the movable holding frame 13, the other first and second holding pins 17 and 18, and the arm set 40 corresponding to them are omitted.

  That is, the number of arm sets 40 included in the transport unit 4 corresponds to the total number of the first and second holding pins 17 and 18, and one first holding pin 17 corresponds to the corresponding arm set 40. A part of the sock semi-finished product held by the arm set 40 from the corresponding arm set 40 and a part of the sock semi-finished product held by the arm set 40. To receive the department. In this embodiment, the number of the first and second holding pins 17 and 18 is several tens or more.

  The first holding pin 17 is formed with a pointed tip 171 and an attachment hook 172 for attaching to the fixed holding frame 12, and the second holding pin 18 is attached to the tip 171 of the first holding pin 17. Correspondingly, an accommodation groove 181 capable of receiving the tip 171 and a mounting hook 182 for mounting on the movable holding frame 13 are formed at the tip.

  Next, when the holding means 1 receives the sock semi-finished product from the conveying means 4, first, as shown in FIG. 9, each arm set 40 is inserted through the loop 320 of the sock semi-finished product by the insertion arm 41 and the holding arm. While being held from below by 42, as shown by the arrows in the figure, toward the corresponding first holding pin 17 or second holding pin 18 in the fixed holding frame 12 and the movable holding frame 13 at the receiving position. Approach from below. As shown in FIG. 10, after the first holding pin 17 or the second holding pin 18 is inserted into the loop 320 held by the corresponding arm set 40, as shown in FIG. First, the holding arm 42 is separated from the loop 320 in the horizontal direction, and the insertion arm 41 is also moved upward as shown in FIG. 12 to come out of the loop 320 and the sock semi-finished product for the first and second holding pins 17 and 18. Complete the delivery. Incidentally, the delivery of the sock semi-finished products shown in FIGS. 9 to 12 is performed for all the arm sets 40 and all the first and second holding pins 17 attached to the fixed holding frame 12 and the movable holding frame 13. 18 is an operation performed simultaneously. Therefore, when the delivery of the sock semi-finished product is completed, the fixed holding frame 12 and the movable holding frame 13 use the plurality of first holding pins 17 and the plurality of second holding pins 18 respectively, sock semi-finished products. The peripheral edge of one half of the annular opening edge is held.

  Next, the operation state of the sock stitching device of the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 13, both halves of the annular opening edge at one end of the sock semi-finished product at the receiving position where the fixed holding frame 12 and the movable holding frame 13 form one frame shape are conveyed from the conveying means 4. After receiving each, an annular opening at one end of the sock semi-finished product with each first holding pin 17 attached to the fixed holding frame 12 and each second holding pin 18 attached to the movable holding frame 13 The fold drive mechanism 15 is driven downward by driving the movable portion 152 of the fold drive mechanism 15 downward while inserting and holding the gap of the loop 320 formed by the thread constituting the sock semi-finished product at the edge, With the assistance of the urging means 162 of the support drive mechanism 16, the driven gear 141 fixed to the movable holding frame 13 is rotated to swing the movable holding frame 13 from the receiving position so as to overlap the fixed holding frame 12.

  As shown in FIGS. 14 to 16, when the fixed holding frame 12 and the movable holding frame 13 are switched from the receiving position to the stitching position, the second holding pins 18 attached to the movable holding frame 13 are From a position arranged in parallel with each first holding pin 17 attached to the fixed holding frame 12, it is located below each corresponding first holding pin 17 and at the tip of each second holding pin 18. The first holding pins 17 are connected to the corresponding second holding pins 18 in the vertical direction so that the sharpened tips 171 at the tips of the first holding pins 17 are received in the receiving grooves 181. The peripheral edge of one half of the annular opening edge of the sock semi-finished product held by each second holding pin 18 attached to the movable holding frame 13 is also each first attached to the fixed holding frame 12. Semi-finished socks held by holding pins 17 It comes to a position directly below the other half of the periphery of the annular opening edge. Incidentally, in FIG. 14, in order to make it easy to see the positional relationship between one first holding pin 17 and the second holding pin 18 corresponding to the first holding pin 17, the fixed holding frame 12 and the movable holding frame 13 The other first and second holding pins 17 and 18 are not shown.

  As shown in FIGS. 16 to 19, after the fixed holding frame 12 and the movable holding frame 13 are switched to the stitching position, the holding arms 42 corresponding to the first holding pins 17 included in the transport unit 4. But close to the second holding pin 18 below the corresponding first holding pin 17 and below the point where the second holding pin 18 holds the loop 320 of the sock semi-finished product 300. After the two holding pins 18 are sandwiched, the loop 320 of the sock semi-finished product 300 held by the second holding pin 18 is pushed up to the corresponding first holding pin 17. Accordingly, both halves held by the first and second holding pins 17 and 18 of the annular opening edge of the sock semi-finished product 300 are both held by only the first holding pins 17. Then, both halves are sewn and joined with the sewing needle 31 of the suturing means 3, and the annular opening of the sock semi-finished product 300 is sealed.

  Next, the operating state of the rotation driving means 2 when the suturing means 3 sews the annular opening edge of the sock semi-finished product 300 with the sewing needle 31 will be described in detail with reference to FIGS. While the position at which the sewing needle 31 of the sewing means 3 in the present invention performs the sewing operation is fixed, the holding means 1 that holds the annular opening edge of the sock semi-finished product 300 in accordance with the sewing operation of the sewing needle 31 is provided on the rotary disk 21. As shown in FIG. 19, four rotation drive mechanisms 22 for routing the turntable 21 are provided, and four pressure cylinders 23 are provided corresponding to each rotation drive mechanism 22. It has been. Here, the one rotary drive mechanism 22 and the pressure cylinder 23 that drives the rotary drive mechanism 22 are collectively referred to as one drive unit, and the rotary disk 21 is driven by the first drive unit I to the fourth drive unit IV. It is driven. Further, the operation protrusion 222 of the rotation drive mechanism 22 in each drive unit is fitted into a tooth groove 212 formed on the outer peripheral edge of the rotating disk 21 when the swing arm 221 is pushed by the piston rod 231 of the pressure cylinder 23. When the piston rod 231 of the pressure cylinder 23 does not push the swing arm 221, it can be retracted out of the tooth groove 212 of the rotating plate 21, so that FIG. As shown in FIG. 22, the piston rod 231 of the pressure cylinder 23 in each drive unit pushes the swing arm 221 of the corresponding rotary drive mechanism 22 through the first drive unit I to the fourth drive unit IV. In this way, the turntable 21 is gradually drawn by the first drive unit I to the fourth drive unit IV that are sequentially operated, Even without using a turret, the rotating disk 21, the fixed frame 10 to which the rotating disk 21 is fixed, and the fixed holding frame 12 fixed to the fixed frame 10 can be rotationally driven with a fine step width. .

  According to the above configuration, the present invention is formed in a substantially disk shape and fixed to the rotating frame, and is disposed on the fixed frame, and by drawing the rotating disk from the outer periphery of the rotating disk, Since the rotating disk, the rotating frame, and the fixed holding frame fixed to the rotating frame are rotated, the rotational movement of the holding seat can be controlled with a simple configuration without using a stepping motor.

  The present invention also includes a driven gear fixed to the movable holding frame, an interlocking gear attached to the rotating frame so that it can rotate, an interlocking loop spanned between the driven gear and the interlocking gear, By using a folding drive mechanism that drives a driven gear that interlocks with the interlocking loop by driving the loop, and by rotating the driven gear by the folding drive mechanism, the receiving position of the fixed holding frame and the movable holding frame Switching to the stitching position can be controlled.

  The present invention also includes a driven gear fixed to the movable holding frame, an interlocking gear attached to the rotating frame so that it can rotate, an interlocking loop spanned between the driven gear and the interlocking gear, By using a folding drive mechanism that drives a driven gear that interlocks with the interlocking loop by driving the loop, and by rotating the driven gear by the folding drive mechanism, the receiving position of the fixed holding frame and the movable holding frame Switching to the stitching position can be controlled.

  Accordingly, the present invention provides a stitching machine that can control folding and rotating motions of a fixed holding frame and a movable holding frame that hold an annular opening edge of a sock semi-finished product with a configuration that is simpler and requires less space than conventional ones. Can do.

DESCRIPTION OF SYMBOLS 1 Holding means 10 Fixed frame 101 Upper support stand 102 Lower support stand 103 Connecting pillar 104 Bearing 11 Rotating frame 12 Fixed holding frame 120 Outer peripheral surface 121 Pivoting seat 122 Pivoting shaft 13 Movable holding frame 131 Pivoting ring 141 Drive gear 142 Interlocking gear 143 Interlocking loop 15 Folding drive mechanism 151 Fixed portion 152 Movable portion 153 Fork 16 Support drive mechanism 161 Movable block 162 Energizing means 163 Fork 17 First holding pin 170 First receiving groove 171 Tip 172 Mounting hook 18 First 2 holding pin 180 second receiving groove 181 receiving groove 182 mounting hook 2 rotation driving means 21 rotating disk 211 tooth 212 tooth groove 22 rotation driving mechanism 220 pivot end 221 swinging arm 222 operating projection 23 pressure cylinder 230 cylinder 2 1 the piston rod 3 suturing means 300 hosiery blank 31 needle 320 loops 4 conveying means 40 arm set 41 through arm 411 horizontal arm 412 vertical arm portion 42 holding the arm 421 pinching arm

Claims (4)

An annular opening edge at one end of a sock semi-finished product made into a tubular shape by a sock knitting machine is held by a holding means, and while the holding means is driven to rotate, the annular opening edge is sewed by a sewing means to form the opening. A sewing device for sealing socks,
The holding means is
A fixed frame;
A rotating frame arranged next to the fixed frame so as to be rotatable with respect to the fixed frame;
A fixed holding frame that is formed in a half frame shape and configured to hold a half periphery of the annular opening edge of the sock semi-finished product and is fixed to the rotating frame;
Like the fixed holding frame, it is formed in a half frame shape so as to be able to hold the peripheral edge of the other half of the annular opening edge of the sock semi-finished product, and one frame together with the fixed holding frame A receiving position for receiving and holding the annular opening edge of the sock semi-finished product, and the annular opening edge of the sock semi-finished product which is overlapped with the fixed holding frame and is held by the fixed holding frame It is pivotally supported by the fixed holding frame so that it can be switched between one half periphery and a stitching position where the other half periphery of the annular opening edge of the sock semi-finished product that it holds is overlapped. A movable holding frame,
The pivot support in the fixed holding frame of the movable holding frame includes a pair of pivot seats protruding from the fixed holding frame and a pair of pivot shafts protruding so as to face each other from the pair of pivot supports, It is made by correspondence with a pair of pivot rings protruding from the movable holding frame so that it can be inserted through a pair of pivot axes.
The holding means is
A driven gear fixed to one of the pair of pivot rings of the movable holding frame;
An interlocking gear attached to the pivoting frame for rotation;
An interlocking loop spanned between the driven gear and the interlocking gear;
A folding drive mechanism for driving the driven gear interlocked with the interlocking loop by driving the interlocking loop; and
The suturing means is held so as to overlap with the fixed holding frame and the movable holding frame in accordance with the rotation of the fixed holding frame and the movable holding frame of the holding means rotated by the rotation driving means. A sewing needle that can sew the periphery of one half of the annular opening edge of the sock semi-finished product and the periphery of the other half of the annular opening edge of the sock semi-finished product,
The switching mechanism is configured to control switching between the receiving position and the stitching position of the fixed holding frame and the movable holding frame by rotating the driven gear by the folding driving mechanism. Socks stitching device. The rotating frame is a casing formed in a substantially cylindrical shape along an axis perpendicular to the one frame of the fixed holding frame and the movable holding frame forming one frame shape at the receiving position;
The fixed holding frame is fixed to one opening end of the casing;
The driven gear and the interlocking gear are disposed corresponding to the axis so that the interlocking loop is substantially parallel to the axis.
The folding drive mechanism is
A fixing portion fixed to the rotating frame;
2. The pressure cylinder according to claim 1, wherein the pressure cylinder has a movable portion that can reciprocate with respect to the fixed portion along a direction substantially parallel to the axis and is attached to the interlocking loop. Socks stitching device. The holding means is
A movable block attached to the interlocking loop so that it can slide back and forth substantially parallel to the axis;
The driven gear is fixed via the movable block, the interlocking loop to which the movable block is attached, and the driven gear interlocking with the interlocking loop interposed between the movable block and the casing. 3. The sock according to claim 2, further comprising a support drive mechanism that includes a biasing unit that imparts a momentum to switch the movable holding frame that is being moved from the stitching position to the receiving position. Sewing device. The interlocking loop is an interlocking chain,
The movable portion of the folding drive mechanism and the movable block of the support drive mechanism are attached to the interlock loop via forks inserted into the interlock chain, respectively. The sock stitching device according to 3.

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