A double-pull head threading machine

Abstract

The application discloses a double-pull head threading machine, which comprises a rack, and is characterized in that the rack is provided with a positioning die with a positioning through slot on the bottom surface, a first chain separating device on one side of the positioning die, a second chain separating device on the other side of the positioning die, a first feeding device with a first feeding die capable of moving up and down, a moving device with a moving seat capable of moving towards or away from the first feeding die, a second feeding device provided on the moving seat, and the second feeding device being provided with a second feeding die capable of moving up and down; when the moving seat drives the second feeding device to move close to the first feeding die and the second feeding die is located directly below the positioning die, the arrangement direction of the first feeding die to the second feeding die is the same as the length extension direction of the positioning through slot; the double-pull head threading machine can simultaneously move two zipper heads to the chain for assembly, and can realize the assembly of the two zipper heads on the chain through one assembly action, thereby greatly improving the zipper assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to a zipper production equipment, in particular to a double-puller threading machine. BACKGROUND

[0002] The threading machine has a mechanism for pulling the chain, feeding the zipper head to the feeding die, and then moving the zipper head to the chain positioning through the feeding die. The zipper is pulled to make the zipper head enter the chain. A chain separating device is usually arranged at the front side or rear side of the zipper head and chain assembly to separate the chain. Part of the zipper needs to be threaded into two zipper heads during production and assembly. The existing production equipment usually has two threading machines, and the chain needs to be threaded through the two threading machines in sequence. The zipper head is assembled on the chain by the two threading machines one by one. The whole zipper assembly process has many operation steps, and it is difficult to improve the zipper assembly efficiency. SUMMARY

[0003] The present application aims to provide a double-puller threading machine to solve one or more technical problems in the prior art, at least to provide a beneficial choice or create conditions.

[0004] The solution to the technical problem of the present application is:

[0005] A double-puller threading machine includes a rack, the rack is provided with: a positioning die with a positioning through slot on the bottom surface; a first chain separating device on one side of the positioning die; a second chain separating device on the other side of the positioning die; a first feeding device with a first feeding die that can move up and down, the first feeding die is located directly below the positioning die; a moving device with a moving seat that can move towards or away from the first feeding die; a second feeding device is arranged on the moving seat, the second feeding device has a second feeding die that can move up and down, when the moving seat drives the second feeding device to move close to the first feeding die and the second feeding die is located directly below the positioning die, the arrangement direction of the first feeding die to the second feeding die is the same as the length extension direction of the positioning through slot.

[0006] The technical scheme has at least the following beneficial effects: the chain to be assembled is transferred on the rack, sequentially passes through the first chain separating device, the positioning mold and the second chain separating device, is separated at the first chain separating device, the first feeding mold and the second feeding mold are respectively loaded with the zipper head, the first feeding mold is used for upwardly feeding the zipper head to the positioning through groove at the bottom side of the positioning mold, the second feeding mold is used for moving to the first feeding mold, and then upwardly feeding the zipper head to the positioning through groove at the bottom side of the positioning mold, the zipper sequentially passes through the two zipper heads, and then the chain is separated by the second chain separating device, so that the two zipper heads can be continuously fed into the chain, and the two zipper heads can be simultaneously transferred to the chain for assembly, the two zipper heads can be assembled on the chain by one assembly action, and the zipper assembly efficiency is greatly improved.

[0007] As a further improvement of the above technical scheme, the first feeding device comprises a first lifting driving element and a first lifting plate, the first lifting driving element is connected to the rack, the first lifting driving element drives the first lifting plate, and the first feeding mold is arranged on the first lifting plate. The first lifting driving element drives the first feeding mold to move up and down through the first lifting plate, so that the zipper head on the first feeding mold is upwardly transferred to the chain, and the first feeding mold is downwardly moved after assembly to prepare for the next transfer.

[0008] As a further improvement of the above technical scheme, the first feeding mold comprises: a fixed seat, a feeding through groove is arranged on the top side of the fixed seat, the feeding through groove is opposite to the positioning mold, a first avoiding channel is arranged on one side wall of the fixed seat, and the first avoiding channel is vertically communicated with the feeding through groove; a head penetrating swing rod is rotationally connected in the fixed seat, a rotating axis of the head penetrating swing rod extends in the horizontal direction, the head penetrating swing rod has a head penetrating segment which is inserted into the first avoiding channel; and a swing driving device is arranged on the fixed seat, the swing driving device can drive the head penetrating swing rod to reciprocally swing and make the head penetrating segment enter or exit the feeding through groove. When the zipper head is fed into the feeding through groove, the swing driving device drives the head penetrating swing rod to swing, so that the head penetrating segment enters the feeding through groove and penetrates the hole position of the pull piece on the zipper head, thereby limiting the position of the zipper head. When it is needed to release the position locking of the zipper head, the swing driving device drives the head penetrating swing rod to reversely swing, so that the head penetrating segment exits the hole position of the pull piece on the zipper head and simultaneously exits the feeding through groove. In this way, the position of the zipper head can be stably locked, the problem that the zipper head is displaced and cannot be assembled during assembly of the zipper is avoided, and the quality of the entire zipper production and assembly is improved.

[0009] As a further improvement of the above technical solution, the swing driving device has a first force applying end and a second force applying end that can move up and down respectively, the position where the swing rod of the puller is rotationally connected to the fixed seat is a rotation connection position, the first force applying end and the second force applying end are respectively located on the two sides of the swing rod of the puller at the rotation connection position. When it is necessary to drive the swing rod of the puller to swing, the first force applying end moves up, and at this time, the second force applying end moves down to avoid interference, or the second force applying end moves up, and at this time, the first force applying end moves down to avoid interference, so that the first force applying end and the second force applying end act on the two sides of the swing rod of the puller at the rotation connection position, and the swing rod of the puller can be driven to swing back and forth.

[0010] As a further improvement of the above technical solution, the swing driving device includes a second lifting driving member and a top rod, the second lifting driving member is connected to the fixed seat, the second lifting driving member drives the top rod, the second lifting driving member can drive the top rod to move up and down, the top surface of the top rod has a top lifting plane, and the top lifting plane serves as the first force applying end. The second lifting driving member drives the top rod to move upward, the top lifting plane serves as the first force applying end and abuts against the swing rod of the puller, so that the swing rod of the puller swings, or the second lifting driving member drives the top rod to move downward, so as to avoid interference between the swing rod of the puller and the first force applying end when the swing rod of the puller swings back to reset.

[0011] As a further improvement of the above technical solution, the top side of the top rod is provided with a blind hole, the swing driving device further includes a spring and a ball, the spring and the ball are located in the blind hole, the two ends of the spring are respectively in abutment with the inner bottom wall of the blind hole and the ball, the ball has an exposed part that protrudes out of the blind hole, the exposed part abuts against the swing rod of the puller, and the exposed part serves as the second force applying end. When the top rod moves up to abut against the swing rod of the puller, the spring is pressed downward and is in a compressed state, and when the top rod moves down, the spring returns to the original state and pushes the swing rod of the puller upward through the ball, so that the swing rod of the puller swings back to reset. The spring can reduce the friction between the swing rod of the puller and the spring, so that the swing rod of the puller swings more smoothly.

[0012] As a further improvement of the above technical solution, the length of the positioning groove extends in the left-right direction, and the structure of the first feeding mold and the structure of the second feeding mold are left-right symmetrical structures. The second feeding mold also feeds the puller, tightly positions the puller, and then moves the puller to the positioning groove on the bottom side of the positioning mold for positioning.

[0013] As a further improvement of the above technical solution, the first chain separating device comprises a pneumatic finger, a connecting block and a separating piece, the pneumatic finger is connected to the frame, the pneumatic finger drives the connection of the two connecting blocks, the pneumatic finger can drive the two connecting blocks to move close to or away from each other, the top side of the two connecting blocks is connected with the separating piece, the separating piece extends along the length direction of the positioning through slot, and the two separating pieces are perpendicular to the positioning through slot. When the chain needs to be separated, the pneumatic finger drives the two connecting blocks to move away from each other, and the two separating pieces separate the chain, so that the chain is inserted into the chain separating head, and when the chain separation is completed, the pneumatic finger drives the two connecting blocks to move close to each other, and the two separating pieces can be folded and reset.

[0014] As a further improvement of the above technical solution, the second chain separating device comprises a third lifting driving element and a separating needle, the third lifting driving element is connected to the frame, the third lifting driving element drives the connection of the separating needle, and the third lifting driving element can drive the separating needle to move up and down and make the separating needle perpendicular to the positioning through slot or staggered with the positioning through slot. The third lifting driving element can drive the separating needle to move down to be perpendicular to the positioning through slot, directly pass through the chain at the separating needle, separate the chain through the separating needle, and after the chain separation is completed, the third lifting driving element drives the separating needle to move up to be staggered with the chain, so that the chain can pass through smoothly.

[0015] As a further improvement of the above technical solution, the transferring device comprises a translation driving element, the translation driving element drives the connection of the transferring seat, and the translation driving element can drive the transferring seat to move close to or away from the first feeding die. The translation driving element provides driving force for the movement of the transferring seat in the horizontal straight line direction, so as to drive the transferring seat to move close to or away from the first feeding die. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only part of the embodiments of the present application, not all embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creative labor.

[0017] Figure 1 It is the overall perspective view of the present application;

[0018] Figure 2 It is the perspective view of the first chain separating device, the positioning die and the second chain separating device of the present application;

[0019] Figure 3 It is the perspective view of the second chain separating device of the present application;

[0020] Figure 4 It is the front view of the first positioning die of the present application;

[0021] Figure 5 is Figure 4 A-A cross-sectional structure schematic diagram.

[0022] In the drawings: 100-frame, 200-positioning die, 210-positioning slot, 300-first chain splitting device, 310-pneumatic finger, 320-connection block, 330-fragment, 400-second chain splitting device, 410-third lifting driving member, 420-needle, 500-first feeding die, 510-fixed seat, 511-feeding slot, 512-first avoidance channel, 520-head passing swing lever, 521-head passing section, 531-second lifting driving member, 532-ejector rod, 533-spring, 534-rolling ball, 540-first lifting driving member, 600-transporting device, 700-second feeding die. DETAILED DESCRIPTION

[0023] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings below, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. In addition, all the connection relationships mentioned in the text do not mean that the components are directly connected, but that a more optimal connection structure can be composed by adding or reducing connecting auxiliary components according to the specific implementation situation. The technical features in the present application can be combined interactively without conflict.

[0024] With reference to Figure 1 , a double-pull head passing machine comprises a frame 100, which is provided with: a positioning die 200, the bottom surface of which has a positioning slot 210; a first chain splitting device 300 located on one side of the positioning die 200; a second chain splitting device 400 located on the other side of the positioning die 200; a first feeding device having a first feeding die 500 that can move up and down, the first feeding die 500 being located directly below the positioning die 200; a transporting device 600 having a transporting seat that can move towards or away from the first feeding die 500; a second feeding device provided on the transporting seat, the second feeding device having a second feeding die 700 that can move up and down, when the transporting seat drives the second feeding device to approach the first feeding die 500 and the second feeding die 700 is located directly below the positioning die 200, the arrangement direction of the first feeding die 500 to the second feeding die 700 is the same as the length extension direction of the positioning slot 210.

[0025] From the above, the unwinding wheel and the winding wheel are arranged on the rack 100 to realize the transfer of the chain, and the chain sequentially passes through the first chain separating device 300, the positioning mold 200 and the second chain separating device 400. The chain is separated at the first chain separating device 300. The rack 100 is also provided with a vibrating disc, which can automatically feed the zipper head. The first feeding mold 500 and the second feeding mold 700 are provided with a push rod for pushing the zipper head, which can push the zipper head on the vibrating disc to the first feeding mold 500 and the second feeding mold 700 respectively. The first feeding mold 500 and the second feeding mold 700 are loaded with zipper heads respectively. The first feeding mold 500 pushes the zipper head upward to the positioning groove 210 at the bottom side of the positioning mold 200. The second feeding mold 700 moves to the first feeding mold 500 first, and then pushes the zipper head upward to the positioning groove 210 at the bottom side of the positioning mold 200. The zipper passes through the two zipper heads in turn, and then the chain is separated again by the second chain separating device 400, so that the two zipper heads can continue to be inserted into the chain. In this way, the two zipper heads can be transferred to the chain for assembly at the same time. Two zipper heads can be assembled on the chain through one assembly action, which greatly improves the zipper assembly efficiency.

[0026] The first feeding device is mainly used to drive the first feeding mold 500 to move up and down. In the embodiment, the first feeding device includes a first lifting driving member 540 and a first lifting plate. The first lifting driving member 540 is connected to the rack 100, and the first lifting driving member 540 drives the first lifting plate. The first feeding mold 500 is arranged on the first lifting plate. The first lifting driving member 540 drives the first feeding mold 500 to move up and down through the first lifting plate, so as to transfer the zipper head on the first feeding mold 500 upward to the chain. After assembly, the first feeding mold 500 moves downward to prepare for the next transfer.

[0027] In the above embodiment, the first feeding mold 500 can be provided with a recess or a groove, so as to position the zipper head. In the embodiment, as shown in Figure 4 And Figure 5As shown, the first feeding die 500 comprises a fixed seat 510, a feeding passage 511 is arranged on the top side of the fixed seat 510, the feeding passage 511 is opposite to the positioning die 200, a first avoiding passage 512 is arranged on the side wall of the fixed seat 510, the first avoiding passage 512 vertically communicates with the feeding passage 511; a penetrating head swing rod 520 is rotationally connected in the fixed seat 510, the rotation axis of the penetrating head swing rod 520 extends in horizontal direction, the penetrating head swing rod 520 has a penetrating head segment 521 which is inserted into the first avoiding passage 512; a swing driving device is arranged on the fixed seat 510, the swing driving device can drive the penetrating head swing rod 520 to swing back and forth and make the penetrating head segment 521 enter or exit the feeding passage 511. When the zipper head is sent into the feeding passage 511, the swing driving device drives the penetrating head swing rod 520 to swing, so that the penetrating head segment 521 enters the feeding passage 511 and penetrates through the hole position of the pull piece on the zipper head, thereby realizing the position limitation of the zipper head. When it is needed to release the position limitation of the zipper head, the swing driving device drives the penetrating head swing rod 520 to swing reversely, so that the penetrating head segment 521 exits the hole position of the pull piece on the zipper head, and at the same time, the penetrating head segment 521 exits the feeding passage 511. In this way, the position of the zipper head can be stably locked, the problem that the zipper head is displaced and the assembly of the zipper cannot be completed during the assembly of the zipper is avoided, and the quality of the entire zipper production and assembly is improved.

[0028] In the above embodiment, the swing driving device is mainly used to provide driving force for reciprocating swing, and various structural forms can be adopted, such as driving motor driving the penetrating head swing rod 520 to swing through a connecting rod mechanism, or driving motor, cam and crank cooperating to drive the penetrating head swing rod 520 to swing, etc. In the present embodiment, the swing driving device has a first force applying end and a second force applying end which can respectively move up and down, the penetrating head swing rod 520 is rotationally connected to the fixed seat 510 at a rotation connection position, and the first force applying end and the second force applying end respectively abut on both sides of the rotation connection position of the penetrating head swing rod 520. When it is needed to drive the penetrating head swing rod 520 to swing, the first force applying end moves up, and at this time, the second force applying end moves down correspondingly to avoid, or the second force applying end moves up, and at this time, the first force applying end moves down correspondingly to avoid. In this way, the first force applying end and the second force applying end respectively act on both sides of the rotation connection position of the penetrating head swing rod 520, thereby realizing the reciprocating swing of the penetrating head swing rod 520.

[0029] As an embodiment of providing the up-and-down movement driving force of the first force applying end in the swing driving device, the swing driving device comprises a second up-and-down driving member 531 connected to the fixed seat 510 and a top rod 532 driven and connected by the second up-and-down driving member 531. The second up-and-down driving member 531 can drive the top rod 532 to move up and down. The top surface of the top rod 532 has a top lifting plane as the first force applying end. When the second up-and-down driving member 531 drives the top rod 532 to move upwards, the top lifting plane as the first force applying end abuts against the puller head swing rod 520, so that the puller head swing rod 520 swings. Alternatively, when the second up-and-down driving member 531 drives the top rod 532 to move downwards, the puller head swing rod 520 is prevented from swinging back and interfering with the first force applying end.

[0030] As an embodiment of providing the up-and-down movement driving force of the second force applying end in the swing driving device, the top side of the top rod 532 is provided with a blind hole. The swing driving device further comprises a spring 533 and a ball 534, both of which are located in the blind hole. The two ends of the spring 533 respectively abut against the inner bottom wall of the blind hole and the ball 534. The ball 534 has an exposed part extending out of the blind hole, which abuts against the puller head swing rod 520 and serves as the second force applying end. When the top rod 532 moves upwards to abut against the puller head swing rod 520, the spring 533 is pressed and is in a compressed state. When the top rod 532 moves downwards, the spring 533 restores and pushes the puller head swing rod 520 upwards through the ball 534, so that the puller head swing rod 520 swings back. The spring 533 can reduce the friction between the puller head swing rod 520 and the spring 533, so that the puller head swing rod 520 swings more smoothly.

[0031] As a further embodiment of the structure of the second feeding mold 700, the length of the positioning through slot 210 extends in the left-right direction, and the structure of the first feeding mold 500 and the structure of the second feeding mold 700 are left-right symmetrical structures. The second feeding mold 700 also feeds the puller head, positions the puller head tightly, and then moves the puller head to the positioning through slot 210 at the bottom side of the positioning mold 200 for positioning.

[0032] The first chain separating device 300 is mainly used for separating the chain, so as to be inserted into the puller head, as shown in Figure 2As shown in the embodiment, the first chain separating device 300 comprises a pneumatic finger 310, connecting blocks 320 and separating pieces 330. The pneumatic finger 310 is connected to the frame 100. The pneumatic finger 310 drives the two connecting blocks 320. The pneumatic finger 310 can drive the two connecting blocks 320 to approach or move away from each other. The top side of each of the two connecting blocks 320 is connected to the separating piece 330. The separating piece 330 extends along the length direction of the positioning through slot 210. The two separating pieces 330 are opposite to the positioning through slot 210. When the chain needs to be separated, the pneumatic finger 310 drives the two connecting blocks 320 to move away from each other. The two separating pieces 330 separate the chain. Thus, the chain is inserted into the chain separating head. When the chain separating is completed, the pneumatic finger 310 drives the two connecting blocks 320 to approach each other. The two separating pieces 330 are folded to reset.

[0033] The second chain separating device 400 is also used to separate the chain. Figure 3 As shown in the embodiment, the second chain separating device 400 comprises a third lifting driving member 410 and a separating needle 420. The third lifting driving member 410 is connected to the frame 100. The third lifting driving member 410 drives the separating needle 420. The third lifting driving member 410 can drive the separating needle 420 to move up and down and make the separating needle 420 opposite to or staggered with the positioning through slot 210. The third lifting driving member 410 drives the separating needle 420 to move down to be opposite to the positioning through slot 210. The separating needle 420 directly passes through the chain. The chain is separated by the separating needle 420. When the chain separating is completed, the third lifting driving member 410 drives the separating needle 420 to move up to be staggered with the chain. Thus, the chain can pass through smoothly.

[0034] In the embodiment, the transferring device 600 comprises a translation driving member. The translation driving member drives the transferring seat. The translation driving member can drive the transferring seat to approach or move away from the first feeding mold 500. The translation driving member provides driving force for the transferring seat to move along the horizontal straight line direction. Thus, the transferring seat is driven to approach or move away from the first feeding mold 500.

[0035] In actual application, the first lifting driving member 540, the second lifting driving member 531, the third lifting driving member 410 and the translation driving member are mainly used to provide driving force to move along the straight line direction. The structures such as electric screw rod, pneumatic push rod or hydraulic push rod can be adopted.

[0036] The preferred embodiments of the present application are specifically described above. However, the present application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. The equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A double-head threading machine, characterized in that: Includes a rack (100), on which are provided: The positioning mold (200) has a positioning through groove (210) on its bottom surface. The first chain splitting device (300) is located on one side of the positioning module (200); The second chain splitting device (400) is located on the other side of the positioning module (200); The first feeding device has a first feeding mold (500) that can move up and down. The first feeding mold (500) is located directly below the positioning mold (200). The first feeding mold (500) includes: a fixed base (510) with a feeding groove (511) on its top side, the feeding groove (511) being directly opposite the positioning mold (200). A first clearance channel (512) is provided on one side wall of the fixed base (510), the first clearance channel (512) being vertically connected to the feeding groove (511); and a through-head swing rod (520) rotatably connected to... Within the fixed base (510), the rotation axis of the pendant swing rod (520) extends horizontally, and the pendant swing rod (520) has a pendant section (521) that inserts into the first clearance channel (512); a swing drive device is disposed on the fixed base (510), and the swing drive device can drive the pendant swing rod (520) to swing back and forth and cause the pendant section (521) to enter or exit the feed channel (511). The swing drive device has a first force-applying end and a second force-applying end that can move up and down respectively. 0) The position rotatably connected to the fixed base (510) is the rotatable connection position. The first force-applying end and the second force-applying end respectively abut against the two sides of the pendant swing rod (520) located at the rotatable connection position. The swing drive device includes a second lifting drive component (531) and a top rod (532). The second lifting drive component (531) is connected to the fixed base (510). The second lifting drive component (531) drives the top rod (532) to move up and down. The top rod (532) The top surface of 32) has a lifting plane, which serves as the first force-applying end. The top side of the top rod (532) is provided with a blind hole. The swing drive device also includes a spring (533) and a ball (534). The spring (533) and the ball (534) are both located in the blind hole. The two ends of the spring (533) abut against the inner bottom wall of the blind hole and the ball (534) respectively. The ball (534) has an exposed portion extending out of the blind hole. The exposed portion abuts against the pendant swing rod (520). The exposed portion serves as the second force-applying end. The transfer device (600) has a transfer seat that can move toward or away from the first loading mold (500); The second feeding device is disposed on the transfer seat. The second feeding device has a second feeding mold (700) that can move up and down. When the transfer seat drives the second feeding device to approach the first feeding mold (500) and makes the second feeding mold (700) directly below the positioning mold (200), the arrangement direction of the first feeding mold (500) to the second feeding mold (700) is the same as the length extension direction of the positioning through groove (210). With the length extension of the positioning through groove (210) as the left and right direction, the structure of the first feeding mold (500) and the structure of the second feeding mold (700) are left and right symmetrical.

2. The double-head threading machine according to claim 1, characterized in that: The first feeding device includes a first lifting drive (540) and a first lifting plate. The first lifting drive (540) is connected to the frame (100), and the first lifting drive (540) drives the connection of the first lifting plate. The first feeding mold (500) is disposed on the first lifting plate.

3. The double-head threading machine according to claim 1, characterized in that: The first chain splitting device (300) includes a pneumatic finger (310), a connecting block (320), and a segment (330). The pneumatic finger (310) is connected to the frame (100). The pneumatic finger (310) drives the two connecting blocks (320) to move closer or further apart. The segment (330) is connected to the top side of each of the two connecting blocks (320). The segment (330) extends along the length direction of the positioning through groove (210). Both segments (330) are directly opposite the positioning through groove (210).

4. A double-head threading machine according to claim 1, characterized in that: The second chain splitting device (400) includes a third lifting drive (410) and a dividing needle (420). The third lifting drive (410) is connected to the frame (100). The third lifting drive (410) drives the dividing needle (420) to move in the up and down direction, so that the dividing needle (420) and the positioning through groove (210) are directly opposite each other or staggered.

5. A double-head threading machine according to claim 1, characterized in that: The transfer device (600) includes a translation drive, which is connected to the transfer seat and can drive the transfer seat to move closer to or away from the first loading mold (500).

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