Crochet hook type zipper positioning device of double-pull head penetrating machine

Abstract

The utility model discloses a crochet hook type zipper positioning device of a double-pull penetrating machine, which comprises a zipper guide mechanism and a transmission mechanism, a zipper guide channel penetrating from one end to the other end is arranged in the zipper guide mechanism, and the transmission mechanism is used for pulling a zipper to penetrate through the zipper guide channel. A probe mechanism, a zipper breaking mechanism, a crochet hook mechanism and a puller penetrating upper die are sequentially arranged above the zipper guide channel in the zipper moving direction, an in-place inductive sensor is arranged above a vacant position of the puller penetrating upper die, and a crochet hook is fixedly connected with the zipper guide mechanism; the in-place inductive sensor is used for detecting whether a square bolt end is arranged at the vacant position of the puller penetrating upper die or not, and the crochet hook mechanism is used for hooking an upper stop end on a zipper during action. The crochet hook mechanism is matched with the probe mechanism, the crochet hook mechanism hooks the top dead end of the zipper while sensing that the zipper is in place, the zipper is prevented from moving after being in place, the square bolt end of the zipper is accurately stopped at the vacant position of the puller penetrating upper die, and high-stability and accurate positioning of the zipper is achieved.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing technology, and in particular to a hook-type zipper positioning device for a double-zipper threading machine. Background Technology

[0002] For double-pull-out rubber-tooth zippers, the zipper pull needs to be positioned to ensure that the zipper block pin end stops precisely at the upper mold space of the zipper pull station;

[0003] In existing technologies, when positioning a zipper in the closed state, the transmission mechanism is stopped by directly sensing the empty space of the zipper through a probe mechanism. However, this positioning method is easily affected by the traction force of the transmission mechanism. That is, after sensing that the zipper is in place, the zipper will still move forward a small range, making it impossible for the square pin end of the zipper to fall accurately in the empty space of the zipper head die. This can easily lead to failure of zipper head insertion and cannot meet the needs of current automated rapid production.

[0004] Therefore, in order to solve the above problems, it is necessary to develop a hook-type zipper positioning device for a double-pull threading machine. By setting up a hook mechanism and a probe mechanism to cooperate, the hook mechanism hooks the upper stop end of the zipper when the zipper is in position, preventing the zipper from moving after it is in position. This ensures that the square pin end of the zipper stops precisely in the empty position of the threading head mold, achieving highly stable and accurate positioning of the zipper. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A hook-type zipper positioning device for a double-zipper threading machine includes a zipper guide mechanism and a transmission mechanism. The zipper guide mechanism has a zipper channel extending from one end to the other. The transmission mechanism is used to pull the zipper through the zipper channel. Above the zipper channel, along the direction of zipper movement, are sequentially arranged a probe mechanism, a zipper breaker mechanism, a hook mechanism, and a zipper threading head mold. Above the empty space of the zipper threading head mold, a positioning sensor is provided. The hook is fixedly connected to the zipper guide mechanism.

[0007] The positioning sensor is used to detect whether there is a square pin end in the empty space of the zipper head mold. The probe mechanism is used to sense the zipper empty space on the zipper. The zipper breaking mechanism is used to separate the closed zipper when it is in operation. The hook mechanism is used to hook the upper stop end on the zipper when it is in operation.

[0008] Preferably, the chain guide mechanism includes an upper chain guide plate and a lower chain guide plate, the chain guide channel is disposed between the upper chain guide plate and the lower chain guide plate, and the probe mechanism, chain breaking mechanism, hook needle mechanism and threading head mold are connected to the upper chain guide plate.

[0009] Preferably, the guide chain mechanism has a probe through hole at the guide chain channel, and the probe mechanism includes a probe, a probe sensor and a tension spring;

[0010] The probe is right-angled, and its middle part is rotatably connected to the guide chain mechanism via a pin. The probe end is located inside the probe hole, and the other end is provided with a sensing rod. The probe sensor and the tension spring are located at the two ends of the sensing rod, respectively. The two ends of the tension spring are connected to the sensing rod and the guide chain mechanism, respectively. The tension spring is used to pull the probe so that the probe end is close to the guide chain channel.

[0011] Preferably, the chain guide mechanism has a chain breaking through hole at the chain guide channel, and the chain breaking through hole is located between the hook needle through hole and the pull-up head mold;

[0012] The chain breaking mechanism includes a chain breaking driver and a chain breaking needle located above the chain breaking through hole. The chain breaking needle is connected to the driving end of the chain breaking driver, and the chain breaking driver is connected to the chain guiding mechanism.

[0013] Preferably, the chain breaking mechanism further includes a first connecting seat, the chain breaking driver is connected to the chain breaking mechanism through the first connecting seat, the first connecting seat has a through guide groove, and the chain breaking needle is slidably connected to the first connecting seat through the guide groove.

[0014] Preferably, the guide chain mechanism has a hook needle through hole at the guide chain channel, and the hook needle through hole is located between the chain breaking through hole and the pull-up head mold;

[0015] The crochet mechanism includes a crochet driver and a crochet hook located above the crochet hook hole. The crochet hook is connected to the drive end of the crochet driver, and the crochet driver is connected to the chain guide mechanism.

[0016] Preferably, the hook mechanism further includes a second connecting seat, the hook driver is connected to the chain guide mechanism through the second connecting seat, the second connecting seat has a through guide hole, and the hook is slidably connected to the second connecting seat through the guide hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model uses a hook mechanism and a probe mechanism to work together. When the zipper is sensed to be in position, the hook mechanism hooks the upper stop of the zipper, preventing the zipper from moving after it is in position. This ensures that the square pin end of the zipper stops precisely in the empty space of the zipper head mold, achieving highly stable and accurate positioning of the zipper. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2This is a three-dimensional cross-sectional view of the zipper after positioning in this utility model;

[0021] The components include: chain guide mechanism 1, probe mechanism 2, chain breaking mechanism 3, hook needle mechanism 4, zipper pull head mold 5, position sensing sensor 6, sensing rod 7, chain guide channel 10, upper chain guide plate 11, lower chain guide plate 12, probe 21, probe sensor 22, tension spring 23, chain breaking driver 31, chain breaking needle 32, first connecting seat 33, hook needle 41, hook needle driver 42, second connecting seat 43, zipper slot 71, upper stop end 72, square pin end 73, probe through hole 1a, chain breaking through hole 1b, hook needle through hole 1c, guide groove 33a, and guide hole 43a. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1 , 2As shown, a hook needle 41 type zipper 7 positioning device for a double-pull zipper includes a chain guide mechanism 1 and a transmission mechanism (not shown in the figure). The chain guide mechanism 1 is provided with a chain guide channel 10 that runs from one end to the other end. The transmission mechanism is used to pull the zipper 7 through the chain guide channel 10. Above the chain guide channel 10, along the direction of movement of the zipper 7, a probe mechanism 2, a chain breaking mechanism 3, a hook needle mechanism 4, and a zipper head mold 5 are arranged in sequence. Above the empty space of the zipper head mold 5, a positioning sensor 6 is arranged. The hook needle 41 is fixedly connected to the chain guide mechanism 1.

[0027] The positioning sensor 6 is used to detect whether there is a square pin end 73 at the empty position of the zipper head mold 5. The probe mechanism 2 is used to sense the zipper empty position 71 on the zipper 7. The zipper breaking mechanism 3 is used to separate the closed zipper 7 when it is in operation. The hook needle mechanism 4 is used to hook the upper stop end 72 on the zipper 7 when it is in operation.

[0028] In this embodiment, the zipper material is uncut and closed. A zipper gap 71 is provided between the upper zipper 7 and the lower zipper 7. The upper zipper 7 is provided with an upper stop end 72 near the zipper gap 71, and the lower zipper 7 is provided with a square pin end 73 near the zipper gap 71.

[0029] During operation, the zipper head is driven forward in the guide channel 10 by the transmission mechanism on the double-zipper head threading machine. Since there are no teeth on the zipper slot 71, when the zipper slot 71 reaches the sensing point of the probe mechanism 2, the probe mechanism 2 is triggered first, and then the chain breaking mechanism 3 is activated to separate the originally closed zipper 7 and reset it. Then, the hook mechanism 4 hooks the upper stop end 72 of the zipper 7. At the same time, the square pin end 73 enters the slot of the threading head mold 5. After the positioning sensor detects the square pin end 73, it is triggered to control the transmission mechanism to stop, thereby preventing the zipper 7 from moving after it has reached the position. This ensures that the square pin end 73 of the zipper 7 stops precisely at the slot of the threading head mold 5, achieving highly stable and accurate positioning of the zipper 7 and ensuring the accurate and stable operation of the threading head.

[0030] Furthermore, such as Figure 1 , 2 As shown, to facilitate installation and maintenance and save space, the chain guide mechanism 1 includes an upper chain guide plate 11 and a lower chain guide plate 12. The chain guide channel 10 is disposed between the upper chain guide plate 11 and the lower chain guide plate 12. The probe mechanism 2, the chain breaking mechanism 3, the hook needle mechanism 4, and the upper pull-through mold 5 are connected to the upper chain guide plate 11, so that the probe mechanism 2, the chain breaking mechanism 3, the hook needle mechanism 4, and the upper pull-through mold 5 are concentrated on one side.

[0031] Furthermore, such as Figure 1 , 2As shown, the guide chain mechanism 1 has a probe 21 through hole 1a at the guide chain channel 10, and the probe mechanism 2 includes a probe 21, a probe sensor 22 and a tension spring 23.

[0032] The probe 21 is right-angled, and its middle part is rotatably connected to the guide chain mechanism 1 via a pin. The probe end of the probe 21 is located inside the probe 21 through hole, and the other end is provided with a sensing rod 7. The probe sensor 22 and the tension spring 23 are respectively located at both ends of the sensing rod 7. The two ends of the tension spring 23 are respectively connected to the sensing rod 7 and the guide chain mechanism 1. The tension spring 23 is used to pull the probe 21 so that the probe end is close to the guide chain channel 10.

[0033] In this embodiment, when the zipper slot 71 moves to the probe 21 through the hole, the probe end of the probe 21 falls into the zipper slot 71 under the tension of the probe 21 tension spring 23. The probe 21 rotates and drives the sensing rod 7 to move, triggering the probe sensor 22. Subsequently, it controls the chain breaking mechanism 3 and the hook mechanism 4 to act in sequence, so as to achieve accurate sensing before the zipper 7 is positioned.

[0034] Furthermore, such as Figure 1 , 2 As shown, the chain guide mechanism 1 has a chain breaking through hole 1b at the chain guide channel 10, and the chain breaking through hole 1b is located between the hook needle through hole 1c and the pull-up head mold 5.

[0035] The chain breaking mechanism 3 includes a chain breaking driver 31 and a chain breaking needle 32 located above the chain breaking through hole 1b. The chain breaking needle 32 is connected to the driving end of the chain breaking driver 31, and the chain breaking driver 31 is connected to the chain guiding mechanism 1.

[0036] In this embodiment, when the probe sensor 22 is triggered, it controls the chain breaking driver 31 to move, driving the chain breaking needle 32 to move towards the chain breaking through hole 1b, separating the originally closed zipper 7. After completion, it automatically resets and retracts, achieving precise chain breaking before the zipper 7 is positioned.

[0037] Furthermore, such as Figure 1 , 2 As shown, in order to improve the stability of the chain breaking needle 32 when subjected to external force, the chain breaking mechanism 3 also includes a first connecting seat 33. The chain breaking driver 31 is connected to the chain breaking mechanism 3 through the first connecting seat 33. The first connecting seat 33 has a through guide groove 33a. The chain breaking needle 32 is slidably connected to the first connecting seat 33 through the guide groove 33a.

[0038] Furthermore, such as Figure 1 , 2 As shown, the guide chain mechanism 1 has a hook needle hole 1c at the guide chain channel 10, and the hook needle hole 1c is located between the chain breaking through hole 1b and the pull-up head mold 5.

[0039] The crochet mechanism 4 includes a crochet driver 42 and a crochet 41 located above the crochet hole 1c. The crochet 41 is connected to the drive end of the crochet driver 42, and the crochet driver 42 is connected to the chain guide mechanism 1.

[0040] In this embodiment, after the chain breaking mechanism 3 completes the chain breaking, it controls the hook driver 42 to operate, driving the hook 41 to extend into the guide chain channel 10. When the zipper 7 reaches the hook 41, it is hooked by the hook 41 and stops at the upper stop 72. At the same time, the positioning sensor senses the square pin end 73, thereby restricting the zipper 7 from moving forward and preventing the zipper 7 from moving after it has reached the position. This ensures that the square pin end 73 of the zipper 7 stops precisely at the empty position of the zipper head mold 5, achieving highly stable and accurate positioning of the zipper 7.

[0041] In this embodiment, the chain breaker driver 31 and the hook driver 42 are pneumatic cylinders or electric cylinders.

[0042] Furthermore, such as Figure 1 , 2 As shown, in order to improve the stability of the hook 41 when subjected to external force, the hook mechanism 4 also includes a second connecting seat 43. The hook driver 42 is connected to the chain guide mechanism 1 through the second connecting seat 43. The second connecting seat 43 has a through guide hole 43a. The hook 41 is slidably connected to the second connecting seat 43 through the guide hole 43a.

[0043] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A hook-type zipper positioning device for a double-zipper threading machine, comprising a zipper guide mechanism and a transmission mechanism, characterized in that, The guide chain mechanism is provided with a guide chain channel that runs from one end to the other. The transmission mechanism is used to pull the zipper through the guide chain channel. Above the guide chain channel, along the direction of zipper movement, there are sequentially arranged a probe mechanism, a chain breaking mechanism, a hook mechanism, and a zipper head mold. Above the empty space of the zipper head mold, there is a positioning sensor. The hook is fixedly connected to the guide chain mechanism. The positioning sensor is used to detect whether there is a square pin end in the empty space of the zipper head mold. The probe mechanism is used to sense the zipper empty space on the zipper. The zipper breaking mechanism is used to separate the closed zipper when it is in operation. The hook mechanism is used to hook the upper stop end on the zipper when it is in operation.

2. The hook-type zipper positioning device for a double-pull threading machine according to claim 1, characterized in that, The chain guide mechanism includes an upper chain guide plate and a lower chain guide plate, and the chain guide channel is disposed between the upper chain guide plate and the lower chain guide plate. The probe mechanism, the chain breaking mechanism, the hook needle mechanism and the threading head mold are connected to the upper chain guide plate.

3. The hook-type zipper positioning device for a double-pull threading machine according to claim 1, characterized in that, The guide chain mechanism has a probe through hole at the guide chain channel, and the probe mechanism includes a probe, a probe sensor and a tension spring. The probe is right-angled, and its middle part is rotatably connected to the guide chain mechanism via a pin. The probe end is located inside the probe hole, and the other end is provided with a sensing rod. The probe sensor and the tension spring are located at the two ends of the sensing rod, respectively. The two ends of the tension spring are connected to the sensing rod and the guide chain mechanism, respectively. The tension spring is used to pull the probe so that the probe end is close to the guide chain channel.

4. The hook-type zipper positioning device for a double-pull threading machine according to claim 1, characterized in that, The chain guide mechanism has a chain breaking through hole at the chain guide channel, and the chain breaking through hole is located between the hook needle through hole and the pull-up head mold. The chain breaking mechanism includes a chain breaking driver and a chain breaking needle located above the chain breaking through hole. The chain breaking needle is connected to the driving end of the chain breaking driver, and the chain breaking driver is connected to the chain guiding mechanism.

5. The hook-type zipper positioning device for a double-pull threading machine according to claim 4, characterized in that, The chain breaking mechanism also includes a first connecting seat. The chain breaking driver is connected to the chain breaking mechanism through the first connecting seat. A through guide groove is provided on the first connecting seat. The chain breaking needle is slidably connected to the first connecting seat through the guide groove.

6. The hook-type zipper positioning device for a double-pull threading machine according to claim 1, characterized in that, The chain guide mechanism has a hook needle through hole at the chain guide channel, and the hook needle through hole is located between the chain breaking through hole and the pull-up head mold. The crochet mechanism includes a crochet driver and a crochet hook located above the crochet hook hole. The crochet hook is connected to the drive end of the crochet driver, and the crochet driver is connected to the chain guide mechanism.

7. The hook-type zipper positioning device for a double-pull threading machine according to claim 6, characterized in that, The hook mechanism also includes a second connecting seat. The hook driver is connected to the chain guide mechanism through the second connecting seat. A through guide hole is provided in the second connecting seat, and the hook is slidably connected to the second connecting seat through the guide hole.

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