Double-opening zipper towing device and injection molding equipment

Abstract

The utility model discloses a double-opening zipper towing device and injection molding equipment, and relates to the technical field of zipper production equipment. The two zipper towing assemblies are symmetrically arranged on the assembling frame, and each zipper towing assembly comprises a driving motor arranged at the bottom of the assembling frame and connected with a linear module sliding block through a transmission lead screw; the first driving air cylinder is arranged on the linear module sliding block, the first driving air cylinder is connected with the clamping jaw air cylinder through a second piston rod, the output end of the clamping jaw air cylinder is connected with the clamping jaw, and the clamping jaw is used for clamping the chain belt. According to the double-opening zipper towing device and the injection molding equipment, the technical problems that according to an existing zipper belt driving mode, slipping is prone to occurring, accurate positioning cannot be achieved, and the zipper quality is not stable are solved; the first driving air cylinder and the driving motor synchronously drive the two zipper belts in the zipper to move forwards synchronously while being away from each other, the zipper belts do not have the problems of slipping, deviation and the like, and therefore the zipper quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of zipper production equipment, in particular to a double-opening zipper towing device. Background Art

[0002] Due to the current social requirement for personalized clothing, a large number of zipper products appear on clothing. Among them, nylon injection-molded zippers are widely favored by clothing manufacturers and customers because of their light weight, thin chain teeth, and low production cost. The market share of injection-molded double-opening zippers is also increasing. In the existing fully automatic double-opening zipper injection mechanism, after the pressing wheel senses the gap of the chain belt, the towing wheel stops, and then the injection action is carried out. As Figure 1 shown, the positions where injection is required are the upper stop and the lower stop of a single zipper. However, during the production process, in fact, the upper stop of the previous zipper is continuous with the upper stop of the next zipper. Therefore, when injecting, the lower stop of the previous zipper and the upper stop of the next zipper are always injected together. Among them, there are no chain teeth between the lower stop of the previous zipper and the upper stop of the next zipper.

[0003] However, using the towing wheel to pull the chain belt depends on the rotation of the motor to measure the pulling distance. This towing method is prone to problems such as slipping and cannot achieve precise positioning, resulting in problems such as uneven upper teeth and lower stop position deviation on the chain belt, and the quality of the zipper is unstable. Therefore, a double-opening zipper towing device and an injection device for solving the above problems are proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a double-opening zipper towing device, which solves the technical problems that the existing chain belt driving method is prone to problems such as slipping, cannot achieve precise positioning, and the quality of the zipper is unstable.

[0005] To achieve the above purpose, the utility model provides a double-opening zipper towing device, including:

[0006] An assembly frame;

[0007] Two zipper towing components are symmetrically arranged on the assembly frame. The zipper towing component includes:

[0008] A driving motor is arranged at the bottom of the assembly frame, and the driving motor is connected to a linear module slider through a transmission lead screw;

[0009] A first driving cylinder is arranged on the linear module slider. The first driving cylinder is connected to a jaw cylinder through a second piston rod, and the output end of the jaw cylinder is connected to a jaw, and the jaw is used for clamping the chain belt.

[0010] Preferably, an upper mold is arranged on the upper part of the assembly frame, and a lower mold is arranged on the lower part of the assembly frame. The upper mold and the lower mold are butted to form an injection cavity.

[0011] Preferably, a second driving cylinder is provided on the upper part of the assembly frame, and the second driving cylinder is connected to the upper mold through a first piston rod.

[0012] Preferably, a plurality of positioning rods are provided on the bottom surface of the upper mold, and a plurality of positioning holes are provided on the top surface of the lower mold, and each positioning hole is docked with one of the positioning rods.

[0013] Preferably, a chain pressing plate is arranged on the assembly frame, and the bottom surface of the chain pressing plate abuts against the upper surface of the chain belt.

[0014] Preferably, a limiting guide rail is arranged on the assembly frame, a chute is provided on the bottom surface of the linear module slider, and the chute is slidably connected to the linear module slider.

[0015] Preferably, a connecting hole is provided on the bottom surface of the linear module slider, and the connecting hole is threadedly connected to the transmission lead screw.

[0016] Preferably, a connecting plate is provided on the top surface of the linear module slider, and the side surface of the connecting plate is connected to the jaw cylinder.

[0017] Preferably, a plurality of anti-slip protrusions are arranged in an array on the inner side surface of the jaw.

[0018] An injection molding device includes the double-open zipper dragging device described in any one of the above.

[0019] Compared with the above background art, a double-open zipper dragging device provided by the present invention drives the jaws to clamp the chain belt through the jaw cylinder, and two first driving cylinders respectively drive the jaw cylinder to move in the direction close to the corresponding first driving cylinder, separate the chain belts on the left and right sides of the zipper according to process requirements. At the same time, the driving motor drives the linear module slider to move in the direction close to the driving motor through the transmission lead screw, that is, while the two chain belts in the zipper move away from each other as a whole, they move forward synchronously. The movement of the chain belt and the jaw cylinder always remains synchronous, and problems such as slipping and deviation will not occur, so that the position of the chain belt can be accurately positioned, and thus the quality of the zipper can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a schematic plan view of the zipper provided by the embodiment of the present invention;

[0022] Figure 2 A three-dimensional structure diagram of the double-opening zipper towing device provided by the embodiment of the present invention;

[0023] Figure 3 A three-dimensional structure diagram of the zipper towing assembly provided by the embodiment of the present invention;

[0024] Figure 4 is Figure 1 An enlarged schematic diagram of part A in

[0025] Specifically, 1 - assembly frame; 101 - upper die; 102 - lower die; 2 - drive motor; 3 - transmission lead screw; 4 - chain pressing plate; 5 - jaw cylinder; 501 - jaw; 6 - linear module slider; 7 - first drive cylinder; 8 - second drive cylinder; 9 - connecting plate; 10 - chain belt; 11 - limit guide rail; 12 - upper stop position; 13 - lower stop position. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In order to enable those skilled in the art in this technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] As Figure 2 and Figure 3 shown, to achieve the above object, the present invention provides a double-opening zipper towing device, including: an assembly frame 1 and a zipper towing assembly arranged on the assembly frame 1, wherein two zipper towing assemblies are symmetrically arranged on the assembly frame 1.

[0029] As Figure 4 shown, the zipper towing assembly includes: a drive motor 2, the drive motor 2 is arranged at the bottom of the assembly frame 1, the drive motor 2 is connected to the linear module slider 6 through the transmission lead screw 3. Preferably, the drive motor 2 is a three-phase asynchronous motor. According to requirements, the drive motor 2 is controlled to rotate forward or reverse through a first control switch (not shown in the figure). The output end of the drive motor 2 drives the transmission lead screw 3 to rotate forward or reverse, thereby flexibly controlling the reciprocating movement of the linear module slider 6 at the bottom of the assembly frame 1.

[0030] A first driving cylinder 7 is provided on the slider 6 of the linear module. The first driving cylinder 7 is connected to the jaw cylinder 5 through a second piston rod. According to requirements, the first driving cylinder 7 is controlled by a second control switch (not shown in the figure) to drive the second piston rod to extend or contract. The output end of the jaw cylinder 5 is connected to the jaw 501, and the jaw 501 is used to clamp the chain belt 10. The jaw cylinder 5 is controlled by a third control switch to drive the jaw 501 to open and close, that is, to flexibly control the jaw 501 to clamp and release the chain belt 10.

[0031] During use, the jaw 501 is driven by the jaw cylinder 5 to clamp the chain belt 10. The two first driving cylinders 7 respectively drive the first piston rods to contract. The first piston rods drive the jaw cylinder 5 to move in the direction close to the corresponding first driving cylinder 7. The chain belt 10 moves synchronously with the jaw cylinder 5, that is, the chain belts 10 on the left and right sides of the zipper are separated according to the process requirements. At the same time, the driving motor 2 drives the linear module slider 6 to move in the direction close to the driving motor 2 through the transmission lead screw 3, that is, while the two chain belts 10 in the zipper move away from each other as a whole, they move forward synchronously. The movement of the chain belt 10 and the jaw cylinder 5 always remains synchronous, and problems such as slipping and deviation will not occur, so that the position of the chain belt 10 can be accurately positioned, and thus the quality of the zipper can be improved.

[0032] It should be noted that an upper mold 101 is provided on the upper part of the assembly rack 1, and a lower mold 102 is provided on the lower part of the assembly rack 1. The upper mold 101 and the lower mold 102 are butted to form an injection cavity. When the chain belt 10 reaches the specified position, the upper stop 12 and the lower stop 13 on the chain belt 10 are both in the injection cavity, and at this time, the upper stop 12 and the lower stop 13 of the chain belt 10 can be injected.

[0033] In an embodiment of the present invention, a plurality of positioning rods are provided on the bottom surface of the upper mold 101, and a plurality of positioning holes are provided on the top surface of the lower mold 102. Specifically, two positioning rods and two positioning holes are respectively provided, and each positioning hole is butted with a positioning rod. Through the mutual cooperation of the positioning rod and the positioning hole, the butting accuracy of the upper mold 101 and the lower mold 102 can be improved, and further the position accuracy of the upper stop and the lower stop on the chain belt 10 can be improved, so as to avoid defects such as high and low teeth of the upper stop and deviation of the lower stop position 13 of the chain belt 10, and effectively improve the quality of the zipper.

[0034] In addition, a second driving cylinder 8 is provided on the upper part of the assembly rack 1. The second driving cylinder 8 is connected to the upper mold 101 through a first piston rod. According to requirements, the second driving cylinder 8 is controlled by a fourth control switch (not shown in the figure) to drive the second piston rod to extend or contract, so as to flexibly control the up and down movement of the upper mold 101. When it is necessary to inject the chain belt 10, the second driving cylinder 8 drives the second piston rod to extend until the positioning rod and the positioning hole are butted with each other. Further, the lower mold 102 and the upper mold 101 are butted to form an injection cavity.

[0035] In one embodiment of the present utility model, a chain pressing plate 4 is provided on the assembly rack 1. The bottom surface of the chain pressing plate 4 abuts against the upper surface of the chain belt 10. When the chain belt 10 moves forward driven by the clamping jaws 501, the upper surface of the chain belt 10 is tightly pressed by the chain pressing plate 4, and at the same time, it does not affect the relative movement of the chain belt 10 with respect to the chain pressing plate 4, enabling the chain belt 10 to maintain a stable movement path, thereby further improving the position accuracy of the upper stop and the lower stop on the chain belt 10.

[0036] Among them, a chain separating die is provided on the top surface of the lower die 102. When the chain belt 10 moves forward driven by the clamping jaws 501, the chain separating die separates the chain teeth on the two fabric tapes of the zipper, that is, according to the process requirements, it ensures that the fabric tapes on the left and right sides of the zipper are on both sides of the chain separating die, thereby ensuring that the upper stop and the lower stop of the zipper can be respectively exactly located at the upper stop position 12 and the lower stop position 13 of the chain belt 10. In addition, a groove is provided in the middle part of the chain pressing plate 4, and the groove cooperates with the chain separating die. The chain separating die does not prevent the chain pressing plate 4 from pressing down tightly against the chain belt 10, ensuring that the bottom surface of the chain pressing plate 4 can smoothly abut against the top surface of the chain belt 10.

[0037] In one embodiment of the present utility model, a limiting guide rail 11 is provided on the assembly rack 1. A sliding groove is provided on the bottom surface of the linear module slider 6, and the sliding groove is slidably connected to the linear module slider 6. Among them, the length direction of the limiting guide rail 11 is the same as the length direction of the transmission lead screw 3, that is, when the driving motor 2 drives the transmission lead screw 3 to rotate forward or backward, the movement path of the linear module slider 6 can be limited and assisted in correction through the limiting guide rail 11 to ensure the position accuracy of the upper stop and the lower stop on the chain belt 10.

[0038] In addition, a connecting hole is provided on the bottom surface of the linear module slider 6, an internal thread is provided in the connecting hole, an external thread is provided on the outer peripheral side of the transmission lead screw 3, and the internal thread is in threaded connection with the external thread, that is, the connecting hole is in threaded connection with the transmission lead screw 3. When the transmission lead screw 3 rotates, it can drive the linear module slider 6 to move along the length direction of the limiting guide rail 11.

[0039] In one embodiment of the present utility model, a connecting plate 9 is provided on the top surface of the linear module slider 6, and the connecting plate 9 is perpendicular to the top surface of the linear module slider 6. The side surface of the connecting plate 9 is connected to the clamping jaw cylinder 5. Specifically, the first driving cylinder 7 is fixedly provided on the side surface of the upper part of the linear module slider 6, and at the same time, the connecting plate 9 is slidably connected to the side surface of the upper part of the linear module slider 6. A fixing sleeve is provided at the left end of the first piston rod, and an assembly hole is provided through the side surface of the connecting plate 9, and the assembly hole is snap-connected to the fixing sleeve, thereby ensuring that the first piston rod can drive the clamping jaw cylinder 5 to move stably.

[0040] Preferably, a guide rail is provided on the side surface of the upper part of the linear module slider 6, a guide groove is provided on the end surface of the connecting plate 9, and the guide groove is slidably connected to the guide rail. Through the sliding cooperation of the guide groove and the guide rail, the movement path of the clamping jaw cylinder 5 is effectively limited, thereby improving the stability of the movement of the chain belt 10.

[0041] In an embodiment of the present utility model, a plurality of anti-slip protrusions are arranged in an array on the inner side surface of the clamping jaw 501. Preferably, the anti-slip protrusions are made of rubber material. The arrangement of the anti-slip protrusions can increase the friction between the clamping jaw 501 and the chain belt 10, thereby ensuring the stability of the clamping jaw 501 clamping the chain belt 10 and further avoiding the phenomenon of the chain belt 10 slipping during movement.

[0042] When the present utility model is in use, by pressing against the upper surface of the chain belt 10, the clamping jaw cylinder 5 is started, and the clamping jaw 501 is driven by the clamping jaw cylinder 5 to clamp the chain belt 10. In the initial state, the first piston rods in the two first driving cylinders 7 are in the extended state. The two first driving cylinders 7 are started, and the two first driving cylinders 7 respectively drive the first piston rods to contract. The first piston rods drive the clamping jaw cylinder 5 to move in the direction close to the corresponding first driving cylinder 7. The chain belt 10 moves synchronously with the clamping jaw cylinder 5, that is, the chain belts 10 on the left and right sides of the zipper are separated according to the process requirements. At the same time, the driving motor 2 drives the linear module slider 6 to move in the direction close to the driving motor 2 through the transmission lead screw 3, that is, while the two chain belts 10 in the zipper move away from each other as a whole, they move forward synchronously until the chain belt 10 reaches the set position, and the linear module slider 6 stops moving forward. The second driving oil cylinder drives the second piston rod to extend, and then drives the upper mold 101 to move downward until the lower mold 102 is butted against the upper mold 101 to form an injection cavity, and the upper stop and the lower stop are injected. After the injection of the upper stop and the lower stop is completed, the clamping jaw cylinder 5 drives the clamping jaw 501 to release the chain belt 10. The two first driving cylinders 7 respectively drive the first piston rods to extend, and the first piston rods drive the clamping jaw cylinder 5 to move in the direction away from the corresponding first driving cylinder 7. At the same time, the driving motor 2 drives the linear module slider 6 to move in the direction away from the driving motor 2 until the clamping jaw 501 returns to the initial position, completing the process of dragging the chain belt 10.

[0043] In addition to the above double-opening zipper dragging device, the present utility model also provides an injection molding device including the double-opening zipper dragging device disclosed in the above embodiment. For the structures of other parts of the injection molding device, please refer to the prior art and will not be elaborated herein.

[0044] In summary, by driving the clamping jaw 501 to clamp the chain belt 10 through the clamping jaw cylinder 5, the two first driving cylinders 7 and the driving motor 2 drive the two chain belts 10 in the zipper to move away from each other and move forward synchronously at the same time. The movement of the chain belt 10 and the clamping jaw cylinder 5 always remains synchronous, and problems such as slipping and deviation will not occur, so that the position of the chain belt 10 can be accurately positioned, improving the quality of the zipper.

[0045] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0046] Specific examples are used in this article to elaborate on the principles and implementation manners of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. A double-opening zipper towing device, characterized in that, Comprising: Assembly rack; Zipper towing assemblies, two zipper towing assemblies are symmetrically arranged on the assembly rack, and the zipper towing assembly includes: Drive motor, arranged at the bottom of the assembly rack, and the drive motor is connected to the linear module slider through a transmission lead screw; First drive cylinder, arranged on the linear module slider, the first drive cylinder is connected to the jaw cylinder through a second piston rod, and the output end of the jaw cylinder is connected to a jaw, and the jaw is used for clamping the chain belt.

2. The double-opening zipper towing device according to claim 1, wherein An upper mold is arranged on the upper part of the assembly rack, a lower mold is arranged on the lower part of the assembly rack, and the upper mold and the lower mold are butted to form an injection cavity.

3. The double-opening zipper towing device according to claim 2, characterized in that, A second drive cylinder is arranged on the upper part of the assembly rack, and the second drive cylinder is connected to the upper mold through a first piston rod.

4. A double-opening zipper towing device according to claim 3, characterized in that, A plurality of positioning rods are arranged on the bottom surface of the upper mold, and a plurality of positioning holes are arranged on the top surface of the lower mold, and each positioning hole is butted with one of the positioning rods.

5. A double-opening zipper towing device according to any one of claims 1-4, characterized in that, A chain pressing plate is arranged on the assembly rack, and the bottom surface of the chain pressing plate abuts against the upper surface of the chain belt.

6. A double-opening zipper towing device according to claim 5, characterized in that A limiting guide rail is arranged on the assembly rack, a chute is arranged on the bottom surface of the linear module slider, and the chute is slidably connected to the linear module slider.

7. A double-opening zipper towing device according to claim 6, characterized in that, A connecting hole is arranged on the bottom surface of the linear module slider, and the connecting hole is threadedly connected to the transmission lead screw.

8. A double-opening zipper towing device according to claim 6, characterized in that, A connecting plate is arranged on the top surface of the linear module slider, and the side surface of the connecting plate is connected to the jaw cylinder.

9. A double-opening zipper towing device according to claim 1, characterized in that, A plurality of anti-slip protrusions are arranged in an array on the inner side surface of the jaw.

10. An injection molding device, characterized in that, Including the double-opening zipper towing device according to any one of the above claims 1-9.

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