A torsion spring acquisition mechanism and a hook and loop automatic assembly device

Abstract

The application discloses a torsion spring acquisition mechanism and a hook automatic assembling device. The torsion spring acquisition mechanism comprises a torsion spring arrangement device, a torsion spring position limiting device, a torsion spring pushing device and a torsion spring transferring device. The torsion spring arrangement device is configured to arrange the torsion spring into an ordered state. The torsion spring position limiting device is configured to limit the torsion spring in the ordered state at an initial position. The torsion spring pushing device is configured to push the torsion spring at the initial position to a waiting transferring position. The torsion spring transferring device is configured to transfer the torsion spring at the waiting transferring position to a buckle head on a clamping jig. The interval between the initial position and the waiting transferring position can allow the torsion spring transferring device to avoid the torsion spring at the initial position when the torsion spring transferring device grabs the torsion spring at the waiting transferring position. Compared with the prior art, the interval between the initial position and the waiting transferring position enables the torsion spring transferring device to easily avoid the torsion spring at the initial position when the torsion spring transferring device grabs the torsion spring at the waiting transferring position.

Description

Technical Field

[0001] This application relates to the field of automation, and in particular to a torsion spring acquisition mechanism and an automatic hook and snap assembly device. Background Technology

[0002] Hooks and loops, widely used in bags, apparel, and industrial equipment, typically require internal torsion springs to enable flexible opening and closing. In automated assembly processes, the precise acquisition, positioning, and transfer of these torsion springs are crucial for ensuring hook and loop assembly quality. However, due to the small size, complex structure, and susceptibility to tangling of torsion springs, traditional manual operation or semi-automatic equipment suffers from low efficiency, poor yield, and difficulty in ensuring consistency, especially in high-speed, high-volume production scenarios.

[0003] In existing technologies, some automated equipment attempts to sort and transfer torsion springs using devices such as vibratory feeders and robotic arms. However, during the movement, when the robotic arm grabs a torsion spring transported by the vibratory feeder, it causes the position of the adjacent torsion spring to change, affecting the next grabbing of the torsion spring.

[0004] Therefore, it is necessary to propose a new technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0005] To address the aforementioned issues, this application provides a torsion spring acquisition mechanism and an automatic hook assembly device. The distance between the initial position and the position to be moved not only ensures smooth operation but also allows the torsion spring transfer device to easily avoid the torsion spring still in the initial position when grabbing the torsion spring at the position to be moved, thus avoiding potential interference and conflict and greatly improving overall work efficiency and safety.

[0006] This application provides a torsion spring receiving mechanism for an automatic hook and snap assembly device, comprising: A torsion spring arranging device configured to arrange the torsion springs into an ordered state; A torsion spring position limiting device configured to limit an ordered torsion spring to its initial position; A torsion spring actuating device configured to actuate a torsion spring located in an initial position to a position to be moved; and A torsion spring transfer device configured to transfer a torsion spring located at the position to be transferred to a buckle located on a clamping fixture; The distance between the initial position and the position to be moved is such that when the torsion spring transfer device grabs the torsion spring at the position to be moved, it avoids the torsion spring located at the initial position.

[0007] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0008] Optionally, the distance between the initial position and the position to be moved is greater than 10 mm.

[0009] Optionally, the torsion spring position limiting device includes: A torsion spring position limiting member having a limiting position and a release position; and A first driving member is used to drive the torsion spring position limiting member to switch between a limiting position and a releasing position; When the torsion spring position limiting member is in the limiting position, the torsion spring position limiting member can limit the torsion spring to the initial position. When the torsion spring position limiting member is in the releasing position, the torsion spring pushing device can push the torsion spring located at the initial position to the position to be moved.

[0010] Optionally, the torsion spring limiting member includes: A first torsion spring position limiting portion has a first limiting position that limits movement of the first torsion spring at an initial position and a first release position that allows movement of the first torsion spring; and The second torsion spring position limiting part has a second limiting position that limits the movement of the second torsion spring, which is different from that of the first torsion spring, and a second release position that allows the second torsion spring to move. Wherein, when the first torsion spring position limiting part is in the first limiting position, the second torsion spring position limiting part is in the second release position; When the second torsion spring position limiting part is in the first limiting position, the first torsion spring position limiting part is in the second release position.

[0011] Optionally, along the torsion spring movement path of the torsion spring in the torsion spring repositioning device, the first torsion spring 1 position limiting part located in the first release position and the second torsion spring position limiting part located in the second release position are located on both sides of the torsion spring movement path.

[0012] Optionally, the first torsion spring and the second torsion spring are two adjacent torsion springs.

[0013] Optionally, the torsion spring actuation device includes: A torsion spring pushing member configured to push a torsion spring located in an initial position to a position to be moved; and The second driving member is used to drive the torsion spring pushing member.

[0014] Optionally, the torsion spring pushing member includes: A first torsion spring actuating part is configured to push the torsion spring, which is located in the initial position, to the first position to be moved; and The second torsion spring pusher is configured to push the torsion spring located at the first position to be moved to the second position to be moved.

[0015] Optionally, the distance between the first position to be moved and the second position to be moved is greater than 10 mm.

[0016] This application also provides an automatic hook and loop assembly device, comprising: frame; A turntable, configured to rotate about a fixed axis, is disposed on the frame; A clamping fixture is disposed on the turntable; A torsion spring acquisition mechanism, which is any one of the torsion spring acquisition mechanisms described above.

[0017] This application discloses a torsion spring acquisition mechanism and an automatic hook assembly device. The distance between the initial position and the position to be moved not only ensures the smoothness of operation, but also allows the torsion spring transfer device to easily avoid the torsion spring still in the initial position when grabbing the torsion spring at the position to be moved, thus avoiding possible interference and conflict, thereby greatly improving the overall work efficiency and safety. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of an automatic hook and loop assembly device according to an embodiment of this application; Figure 2 This is a schematic diagram of the hook and loop fastener structure; Figure 3 for Figure 1 A partial structural diagram of the automatic assembly equipment for hook buckles; Figure 4 for Figure 3 A partial structural schematic diagram of the mechanism for obtaining the torsion spring; Figure 5 for Figure 4 A partial structural diagram; Figure 6 for Figure 4 A partial structural diagram.

[0019] The annotations in the figure are explained as follows: 100. Automatic hook and snap assembly equipment; 101. Hook and snap; 103. Buckle head; 104. Torsion spring; 1041. First torsion spring; 1042. Second torsion spring; 10. Frame; 11. Turntable; 111. Motor; 12. Clamping fixture; 40. Torsion spring acquisition mechanism; 41. Torsion spring placement device; 411. Torsion spring vibratory plate; 412. Torsion spring conveyor line; 42. Torsion spring position limiting device; 421. Torsion spring position limiting component; 4211. First torsion spring position limiting part; 4212. Second torsion spring position limiting part; 422. First driving member; 43. Torsion spring pushing device; 431. Torsion spring pushing component; 4311. First torsion spring pushing part; 4312. Second torsion spring pushing part; 432. Second driving member; 44. Torsion spring transfer device; 45. First position to be moved; 46. Second position to be moved. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0022] 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 application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 6 As shown, this application provides a torsion spring acquisition mechanism 40, including a torsion spring placement device 41, a torsion spring position limiting device 42, a torsion spring pushing device 43, and a torsion spring transfer device 44. The torsion spring placement device 41 is configured to place the torsion springs 104 into an ordered state; the torsion spring position limiting device 42 is configured to limit the ordered torsion springs 104 to an initial position; the torsion spring pushing device 43 is configured to push the torsion springs 104 located at the initial position to a position to be moved; the torsion spring transfer device 44 is configured to transfer the torsion springs 104 located at the position to be moved to a buckle 103 located on a clamping fixture 12; wherein, the distance between the initial position and the position to be moved allows the torsion spring transfer device 44 to avoid the torsion springs 104 located at the initial position when it grasps the torsion springs 104 at the position to be moved.

[0024] The disordered torsion springs 104 are arranged neatly and orderly by the torsion spring arranging device 41; then the torsion spring position limiting device 42 precisely fixes these orderly arranged torsion springs 104 in the initial position to prevent them from moving before being pushed; then the torsion spring pushing device 43 smoothly pushes the torsion springs 104 in the initial position to the position to be moved; finally, the torsion spring transferring device 44 transfers the torsion springs 104 in the position to be moved to the buckle 103 on the clamping fixture 12, completing the entire process of acquiring and installing the torsion springs 104, so as to achieve the effect of automatically transferring the torsion springs 104 to the clamping fixture 12.

[0025] Importantly, the distance between the initial position and the position to be moved not only ensures the smoothness of the operation, but also allows the torsion spring transfer device 44 to easily avoid the torsion spring 104 still in the initial position when it grabs the torsion spring 104 at the position to be moved, thus avoiding possible interference and conflict, thereby greatly improving the overall work efficiency and safety.

[0026] In this embodiment, as Figures 4 to 6 As shown, due to the relatively complex shape and structure of the torsion springs 104, they are prone to becoming disordered during the production process. Therefore, the function of the torsion spring sorting device 41 is to organize these disordered torsion springs 104 into an orderly state, facilitating subsequent operations. The torsion spring sorting device 41 includes a torsion spring vibratory feeder 411 and a torsion spring conveyor line 412. The torsion spring vibratory feeder 411 conveys the torsion springs 104 to the torsion spring conveyor line 412, so that the torsion springs 104 are arranged neatly in a certain direction and posture. Both the torsion spring vibratory feeder 411 and the torsion spring conveyor line 412 can adopt existing technologies, which will not be further described here.

[0027] In this embodiment, as Figures 4 to 6 As shown, after the torsion spring 104 is arranged in an ordered state, it needs to be temporarily restricted to its initial position so that subsequent pushing operations can be performed accurately. The torsion spring position limiting device 42 includes a torsion spring position limiting member 421 and a first driving member 422; the torsion spring position limiting member 421 has a limiting position and a releasing position; the first driving member 422 is used to drive the torsion spring position limiting member 421 to switch between the limiting position and the releasing position; wherein, when the torsion spring position limiting member 421 is in the limiting position, the torsion spring position limiting member 421 can restrict the torsion spring 104 to the initial position; when the torsion spring position limiting member 421 is in the releasing position, the torsion spring pushing device 43 can push the torsion spring 104 located at the initial position to the position to be moved.

[0028] In this embodiment, as Figures 4 to 6As shown, the torsion spring 104 limiting member includes a first torsion spring position limiting part 4211 and a second torsion spring position limiting part 4212. The first torsion spring position limiting part 4211 has a first limiting position that restricts the movement of the first torsion spring 1041 located in the initial position and a first release position that allows the first torsion spring 1041 to move. The second torsion spring position limiting part 4212 has a second limiting position that restricts the movement of the second torsion spring 1042, which is different from the first torsion spring 1041, and a second release position that allows the second torsion spring 1042 to move. When the first torsion spring position limiting part 4211 is in the first limiting position, the second torsion spring position limiting part 4212 is in the second release position; when the second torsion spring position limiting part 4212 is in the first limiting position, the first torsion spring position limiting part 4211 is in the second release position. The first torsion spring position limiting part 4211 and the second torsion spring position limiting part 4212 can respectively limit the movement of two adjacent torsion springs 104, and when one limiting part is in the limiting position, the other limiting part is in the release position. In this way, the torsion springs 104 can be pushed and moved sequentially without interfering with the adjacent torsion springs 104.

[0029] In this embodiment, as Figures 4 to 6 As shown, along the torsion spring 104's movement path in the torsion spring 104 positioning device 41, the first torsion spring position limiting part 4211 in the first release position and the second torsion spring position limiting part 4212 in the second release position are located on opposite sides of the torsion spring 104's movement path. The first driving member 422 can simultaneously drive the first torsion spring position limiting part 4211 and the second torsion spring position limiting part 4212, thereby reducing the transmission structure between the first driving member 422 and the first and second torsion spring position limiting parts 4211 and 4212. The opposite sides of the torsion spring 104's movement path can be understood as the area above and below the torsion spring 104's movement path. The torsion spring conveying line 412 has clearance holes for the first and second torsion spring position limiting parts 4211 and 4212 to pass through.

[0030] In this embodiment, as Figures 4 to 6As shown, both the first torsion spring position limiting part 4211 and the second torsion spring position limiting part 4212 are rod-shaped structures. The axis of the first torsion spring position limiting part 4211 and the axis of the second torsion spring position limiting part 4212 are arranged approximately parallel to each other. When the first torsion spring position limiting part 4211 is in the first limiting position, it can abut against the side of the first torsion spring 1041 to limit its movement. The side of the first torsion spring position limiting part 4211 facing the first torsion spring 1041 has an arc-shaped surface to ensure stable abutment against the first torsion spring 1041. When the second torsion spring position limiting part 4212 is in the second limiting position, it extends into the torsion spring 104 to limit its movement. The second torsion spring position limiting part 4212 is cylindrical to stably limit its movement. The first driving component 422 can be a driving cylinder.

[0031] In this embodiment, as Figures 4 to 6 As shown, the first torsion spring 1041 and the second torsion spring 1042 are two adjacent torsion springs 104, so that the structure of the torsion spring position limiting device 42 can be more compact; in addition, when the torsion spring transfer device 44 operates the first torsion spring 1041 at the position to be moved, it avoids interfering with the torsion spring 104 between the first torsion spring 1041 and the second torsion spring 1042.

[0032] In this embodiment, as Figures 4 to 6 As shown, the torsion spring pushing device 43 includes a torsion spring pushing member 431 and a second driving member 432; the torsion spring pushing member 431 is configured to push the torsion spring 104, which is located in the initial position, to the position to be moved; the second driving member 432 is used to drive the torsion spring pushing member 431. The torsion spring pushing member 431 acts directly on the torsion spring 104, while the second driving member 432 provides the power required for pushing.

[0033] In this embodiment, as Figures 4 to 6 As shown, the torsion spring pushing member 431 includes a first torsion spring pushing part 4311 and a second torsion spring pushing part 4312. The first torsion spring pushing part 4311 is configured to push the torsion spring 104 located at the initial position to the first position to be moved 45. The second torsion spring pushing part 4312 is configured to push the torsion spring 104 located at the first position to be moved 45 to the second position to be moved 46. In order to more precisely control the movement of the torsion spring 104, the first torsion spring pushing part 4311 pushes the torsion spring 104 from the initial position to the first position to be moved 45, while the second torsion spring pushing part 4312 pushes it from the first position to be moved 45 to the second position to be moved 46.

[0034] In this embodiment, as Figures 4 to 6As shown, both the first torsion spring pusher 4311 and the second torsion spring pusher 4312 are located below the torsion spring conveyor line 412. The second drive member 432 can drive both the first torsion spring pusher 4311 and the second torsion spring pusher 4312 simultaneously, thereby reducing the transmission structure between the second drive member 432 and the first and second torsion spring pushers 4311 and 4312. The torsion spring conveyor line 412 has a clearance hole for the first torsion spring pusher 4311 and the second torsion spring pusher 4312 to pass through. The first torsion spring pusher 4311, the second torsion spring pusher 4312, and the first torsion spring position limiting member 4211 can share the same clearance hole.

[0035] In this embodiment, as Figures 4 to 6 As shown, both the first torsion spring pushing part 4311 and the second torsion spring pushing part 4312 are rod-shaped structures. The axis of the first torsion spring pushing part 4311 and the axis of the second torsion spring pushing part 4312 are approximately parallel. The first torsion spring pushing part 4311 has a cylindrical structure; it can extend into the torsion spring 104 to stably push the movement of the second torsion spring 1042. The second torsion spring pushing part 4312 has an arc-shaped surface that mates with the torsion spring 104 to stably push the torsion spring 104. The second driving member 432 can be a cylinder.

[0036] In this embodiment, as Figures 4 to 6 As shown, the distance between the initial position and the position to be moved is greater than 10 mm to ensure that the torsion spring transfer device 44 does not interfere with the torsion spring 104 located at the initial position when it grasps the torsion spring 104 at the position to be moved. Preferably, the distance between the initial position and the position to be moved is greater than 15 mm or 20 mm.

[0037] In this embodiment, as Figures 4 to 6 As shown, the distance between the first position to be moved 45 and the second position to be moved 46 is greater than 10 mm to ensure that the torsion spring transfer device 44 does not interfere with the torsion spring 104 located at the first position to be moved 45 when it grasps the torsion spring 104 at the second position to be moved 46. Preferably, the distance between the first position to be moved 45 and the second position to be moved 46 is greater than 15 mm or 20 mm.

[0038] In this embodiment, as Figures 4 to 6 As shown, the structure of the torsion spring transfer device 44 is not strictly limited, as long as the torsion spring transfer device 44 can grasp the torsion spring 104. For example, the torsion spring transfer device 44 can be a pneumatic gripper.

[0039] like Figures 1 to 6As shown, this application also provides an automatic hook and snap assembly device 100, including a frame 10, a turntable 11, a clamping fixture 12, and a torsion spring acquisition mechanism 40. The turntable 11 is configured to rotate around a fixed axis and is disposed on the frame 10; the clamping fixture 12 is disposed on the turntable 11; the torsion spring acquisition mechanism 40 is the torsion spring acquisition mechanism 40 in the above embodiments. The automatic hook and snap assembly device 100 realizes the automated assembly of hooks and snaps 101, improving the assembly efficiency of hooks and snaps 101.

[0040] In this embodiment, as Figure 1 and Figure 3 As shown, the frame 10 serves as the support structure for the equipment, supporting and securing other components to ensure the stability and reliability of the entire device. The structure of the frame 10 is not strictly limited; it only needs to support the turntable 11 and the torsion spring receiving mechanism 40, etc., and will not be further elaborated here. For example, the frame 10 can be a frame structure. The bottom of the frame 10 is equipped with casters to facilitate the movement of the entire hook-and-loop automatic assembly equipment 100.

[0041] In this embodiment, as Figures 1 to 3 As shown, the turntable 11 is configured to rotate about a fixed axis and is mounted on the frame 10; the rotation of the turntable 11 enables assembly line operation and improves assembly efficiency. In operation, the turntable 11 of the hook and snap automatic assembly equipment 100 rotates about a vertical axis. The hook and snap automatic assembly equipment 100 also includes a motor 111 for driving the turntable 11. Multiple clamping fixtures 12 are arranged circumferentially around the turntable 11.

[0042] In this embodiment, as Figures 1 to 3 As shown, the clamping fixture 12 is fixed to the turntable 11. The clamping fixture 12 is used to support and position the various components of the hook 101, ensuring stability and accuracy during assembly. The number of clamping fixtures 12 is not strictly required and can be adjusted according to actual needs, which will not be further elaborated here. For example, the number of clamping fixtures 12 can be 8, 9, 10, 11, 12, 13, 14, 15, or 16.

[0043] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0044] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A torsion spring receiving mechanism for an automatic hook and snap assembly device, characterized in that, include: A torsion spring arranging device configured to arrange the torsion springs into an ordered state; A torsion spring position limiting device configured to limit an ordered torsion spring to its initial position; A torsion spring actuating device configured to actuate a torsion spring located in an initial position to a position to be moved; and A torsion spring transfer device configured to transfer a torsion spring located at the position to be transferred to a buckle located on a clamping fixture; The distance between the initial position and the position to be moved is such that when the torsion spring transfer device grabs the torsion spring at the position to be moved, it avoids the torsion spring located at the initial position.

2. The torsion spring acquisition mechanism according to claim 1, characterized in that, The distance between the initial position and the position to be moved is greater than 10 mm.

3. A torsion spring receiving mechanism according to claim 1 or 2, characterized in that, The torsion spring position limiting device includes: A torsion spring position limiting member having a limiting position and a release position; and A first driving member is used to drive the torsion spring position limiting member to switch between a limiting position and a releasing position; When the torsion spring position limiting member is in the limiting position, the torsion spring position limiting member can limit the torsion spring to the initial position. When the torsion spring position limiting member is in the releasing position, the torsion spring pushing device can push the torsion spring located at the initial position to the position to be moved.

4. The torsion spring acquisition mechanism according to claim 3, characterized in that, The torsion spring limiting member includes: A first torsion spring position limiting portion has a first limiting position that limits movement of the first torsion spring at an initial position and a first release position that allows movement of the first torsion spring; and The second torsion spring position limiting part has a second limiting position that limits the movement of the second torsion spring, which is different from that of the first torsion spring, and a second release position that allows the second torsion spring to move. Wherein, when the first torsion spring position limiting part is in the first limiting position, the second torsion spring position limiting part is in the second release position; When the second torsion spring position limiting part is in the first limiting position, the first torsion spring position limiting part is in the second release position.

5. A torsion spring receiving mechanism according to claim 4, characterized in that, Along the torsion spring moving path of the torsion spring in the torsion spring repositioning device, the first torsion spring 1 position limiting part located in the first release position and the second torsion spring position limiting part located in the second release position are located on both sides of the torsion spring moving path.

6. The torsion spring receiving mechanism according to claim 4, characterized in that, The first torsion spring and the second torsion spring are two adjacent torsion springs.

7. A torsion spring receiving mechanism according to claim 4, characterized in that, The torsion spring actuating device includes: A torsion spring pushing member configured to push a torsion spring located in an initial position to a position to be moved; and The second driving member is used to drive the torsion spring pushing member.

8. A torsion spring receiving mechanism according to claim 7, characterized in that, The torsion spring pushing component includes: A first torsion spring actuating part is configured to push the torsion spring, which is located in the initial position, to the first position to be moved; and The second torsion spring pusher is configured to push the torsion spring located at the first position to be moved to the second position to be moved.

9. A torsion spring receiving mechanism according to claim 8, characterized in that, The distance between the first position to be moved and the second position to be moved is greater than 10mm.

10. An automatic hook and snap assembly device, characterized in that, include: frame; A turntable, configured to rotate about a fixed axis, is disposed on the frame; A clamping fixture is disposed on the turntable; A torsion spring acquisition mechanism, as described in any one of claims 1 to 9.

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