Device for automatically producing watchband spring bars

By designing an automated device for producing watch strap spring bars, which utilizes a turntable and detection technology to automatically detect and assemble spring bars, the problems of low assembly efficiency and poor consistency of spring bars are solved, achieving highly efficient automated production.

CN223933024UActive Publication Date: 2026-02-24JIEYANG HENGHUAN TECH IND CO LTD
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Patent Information

Application Number
CN202520486176.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-24
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing spring ear assembly machines require manual intervention during the orientation and fixing process to orient and rotate the steel tube to the notch, resulting in low spring ear assembly efficiency and poor product consistency.

Method used

Design an automatic device for producing watch strap spring bars, including a turntable, a spring bar conveying device, a calibration device, a guide head conveying device, and an unloading device. Employ laser detection and image detection technology to automatically detect the position of the spring bar notch and the nail head mounting hole, and insert the guide head into the notch through an elastic nail clamp to achieve automatic assembly. Defective products are automatically handled by the unloading device.

Benefits of technology

It improves the efficiency of raw ear assembly, ensures product consistency, avoids manual intervention and jamming, and has high detection accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of watchband spring bar production, in particular to a device for automatically producing watchband spring bars, when the device is used, the spring bars are conveyed to a fixing device through a spring bar conveying device, then the notch positions of the spring bars are detected through a detection device, the notch positions of the spring bars are rotated to the upper portion through a proofreading device, and the spring bars are automatically produced. The shifting block conveying device conveys the shifting block to the elastic nail clamp, then the elastic nail clamp moves towards the notch of the spring bar, the shifting block is inserted into the notch of the spring bar, assembling is completed, finally, the assembled spring bar with the shifting block is unloaded from the fixing device through the unloading device, and when the detecting device detects that the spring bar is a defective product in the detecting step, the shifting block conveying device conveys the shifting block to the elastic nail clamp. The rotating disc can rotate so as to drive the fixing device to move to the discharging device, defective goods are discharged from the discharging device, manual intervention is not needed, meanwhile, the detection accuracy of the laser detection device and the image detection device is higher, and the blocking situation cannot occur.
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Description

Technical Field

[0001] This utility model relates to the field of watch strap spring bar production technology, and in particular to an automatic device for producing watch strap spring bars. Background Technology

[0002] Spring bars are flexible shaft components used to hinge the watch strap to the watch case. Traditionally, spring bars have grooves on the pins, which are then moved using a special tool. Now, spring bars with a lever have appeared on the market. These levers have protrusions on the pins, which can be moved by hand to press the pins, allowing for manual assembly and disassembly of the watch strap. Because the steel tube of the lever spring bar has notches on its side wall, the steel tube needs to be oriented and fixed before assembly. Current spring bar assembly machines use manual operation for steel tube orientation, resulting in low assembly efficiency and poor product consistency. Therefore, spring bar assembly machines have emerged on the market.

[0003] For example, patent CN115582693A discloses a spring ear assembly machine with directional steel pipe conveying, including a rotary feeding mechanism and a steel pipe feeding device. The rotary feeding mechanism is equipped with multiple steel pipe carriers evenly distributed along the circumference, which are used to position and fix the steel pipes. The steel pipe feeding device is correspondingly installed on the outside of the rotary feeding mechanism. The steel pipe feeding device includes a first support, a feeding mechanism, a driving mechanism, a clamping and positioning mechanism, and a rotational orientation mechanism. The feeding mechanism is installed on the first support and is used to sequentially convey steel pipes with notches facing the same direction to the steel pipe carriers. The driving mechanism is installed on the top of the first support and is used to provide lifting power. The clamping and positioning mechanism is installed on the output end of the driving mechanism and is used to clamp and position the steel pipes located on the steel pipe carriers from the left and right. In actual use, the steel pipes rolling down from the feeding track enter the positioning recess for initial positioning. Then, the clamping and positioning mechanism clamps and positions the steel pipes on the positioning recess. Then, the rotational orientation mechanism cooperates with the positioning recess to rotate the steel pipes to a position with the notches facing upwards.

[0004] The problem with the above technology is that the assembly machine uses a positioning recess and a rotating orientation mechanism to position the steel pipe, thereby rotating the steel pipe to a position where the notch faces upwards. When the steel pipe is a defective product with no notch or a notch size that does not conform to the positioning recess, the positioning recess cannot detect the notch position of the steel pipe. Therefore, in actual use, the assembly machine is prone to getting stuck at the steel pipe positioning step. At this time, manual intervention is required to remove the defective product, otherwise it is easy to cause jamming.

[0005] To address this technical problem, an automatic device for producing watch strap spring bars is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an automatic device for producing watch strap spring bars, which can automatically produce spring bars with dials, with high assembly efficiency and strong product consistency.

[0007] The technical solution adopted by this utility model to solve the problem is: an automatic device for producing watch strap spring bars, including a turntable, on which a plurality of fixing devices are arranged in a circular array. Around the outer side of the turntable are a spring bar conveying device, a plurality of calibration devices, a head conveying device, and a unloading device. The head conveying device is located above one of the calibration devices. The head conveying device includes a vertically movable elastic clip. A detection device is located above the calibration device. The fixing devices change positions sequentially between the spring bar conveying device, the calibration device, the head conveying device, and the unloading device via the turntable. The detection device is a laser detection device or an image detection device.

[0008] As a further improvement to the above technical solution, the calibration device includes a chuck that moves along the direction of the fixing device, a rotating motor is provided at one end of the chuck, the other end of the chuck faces the fixing device, and the detection device is located above the chuck and faces the fixing device.

[0009] As a further improvement to the above technical solution, the calibration device includes a first movable seat that moves along the direction of the fixed device, and the clamp is disposed on the first movable seat.

[0010] As a further improvement to the above technical solution, a second movable seat that moves laterally is provided above the dial conveying device, the elastic nail clamp is provided on the second movable seat, the detection device is provided on the second movable seat and faces the fixing device, and the detection device is located next to the elastic nail clamp.

[0011] As a further improvement to the above technical solution, the raw ear delivery device includes a pin that moves along the direction of the fixing device and a receiving block that moves laterally. A fixing seat is provided between the pin and the fixing device. A vertically moving slider is provided on the fixing seat. A sliding groove is provided on the slider. A through groove is provided on the fixing seat. A receiving groove is provided on the receiving block. The receiving groove, through groove and sliding groove are connected in sequence and face the fixing device. The pin can pass through the receiving groove, through groove and sliding groove in sequence.

[0012] As a further improvement to the above technical solution, the fixing device includes a rotating seat, a fixing bracket is provided on the rotating seat, and a fixing groove is provided on the fixing bracket.

[0013] As a further improvement to the above technical solution, a stop block is provided on the side of the fixed bracket, and the stop block is directly opposite the fixed groove.

[0014] As a further improvement to the above technical solution, a limiting seat is elastically connected to the side of the fixing device, a limiting block is provided on the limiting seat, a limiting groove is provided on the rotating seat, and the limiting block is inserted into the limiting groove; an unlocking device is provided on the side of the limiting seat, the unlocking device includes an unlocking block that moves along the direction of the limiting seat, a slot is provided on the unlocking block, a locking block is provided on the limiting seat, and the locking block is engaged with the slot.

[0015] As a further improvement to the above technical solution, the unloading device includes an inclined unloading plate, and an unloading clamp that moves along the direction of the fixing device is provided above the unloading plate.

[0016] The beneficial effects of this utility model are as follows: In use, the spring ear is conveyed to the fixing device through the spring ear conveying device, and then the position of the notch on the spring ear is detected by the detection device. The notch position of the spring ear is rotated to the top by the calibration device, and the dial head is conveyed to the elastic clip through the dial head conveying device. Then the elastic clip moves to the notch of the spring ear and inserts the dial head into the notch of the spring ear, thereby completing the assembly. Finally, the assembled spring ear with the dial head is unloaded from the fixing device by the unloading device. When the detection device detects that the spring ear is a defective product in the detection step, the turntable will rotate, thereby driving the fixing device to move to the unloading device and unloading the defective product from the unloading device. No manual intervention is required. At the same time, the detection accuracy of the laser detection device and the image detection device is higher and there will be no jamming. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the calibration device of this utility model;

[0020] Figure 3 This is a structural diagram of the dial conveyor device of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of part A;

[0022] Figure 5 This is a structural diagram of the new ear delivery device of this utility model;

[0023] Figure 6 for Figure 5 A magnified view of part B;

[0024] Figure 7 This is a structural diagram of the fast receiving device of this utility model;

[0025] Figure 8 This is a structural diagram of the unlocking device and fixing device of this utility model;

[0026] Figure 9 This is a cross-sectional view of the unlocking device and the fixing device of this utility model;

[0027] Figure 10 This is a structural diagram of the unloading device of this utility model.

[0028] In the diagram: 1-turntable, 2-fixed device, 21-rotating seat, 22-fixed bracket, 23-fixed groove, 24-stop block, 25-limiting groove, 3-spring ear conveying device, 31-ejector pin, 32-receiving block, 321-receiving groove, 33-fixed seat, 331-through groove, 34-slider, 341-slide groove, 4-calibration device, 41-clamp, 42-rotating motor, 43-first moving seat, 5-head conveying device, 51-second moving seat, 52-elastic nail clamp, 6-unloading device, 61-unloading plate, 62-unloading clamp, 7-detection device, 8-limiting seat, 81-limiting block, 82-locking block, 9-unlocking device, 91-unlocking block, 92-locking groove. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 10 An automatic device for producing watch strap spring bars includes a turntable 1. Several fixing devices 2 are arranged in a circular array on the turntable 1. A spring bar conveying device 3, several calibration devices 4, a toggle conveying device 5, and a unloading device 6 are arranged around the outside of the turntable 1. The toggle conveying device 5 is located above one of the calibration devices 4 and includes an elastic clip 52. A detection device 7 is arranged above the calibration device 4. The fixing devices 2 change positions sequentially between the spring bar conveying device 3, the calibration device 4, the toggle conveying device 5, and the unloading device 6 via the turntable 1. The detection device 7 is a laser detection device or an image detection device.

[0034] The distance between the laser detection device and the new ear is detected by infrared detection, thereby detecting the position of the new ear notch and the nail head mounting hole;

[0035] For example, the distance between the laser device and the spring ear is A, the distance between the laser device and the spring ear notch is B, and the distance between the laser device and the nail head mounting hole is C, where C > B > A. By detecting the above distance data with the laser device, the position of the spring ear notch and the nail head mounting hole can be determined.

[0036] An image detection device can produce images that show the location of the ear notch and the nail head mounting hole;

[0037] In use, the spring ear is conveyed to the fixing device 2 through the spring ear conveying device 3, and then the position of the notch on the spring ear is detected by the detection device 7. The notch position of the spring ear is rotated to the top by the calibration device 4. The dial head is conveyed to the elastic clip 52 through the dial head conveying device 5. Then the elastic clip 52 moves to the notch of the spring ear and inserts the dial head into the notch of the spring ear, thereby completing the assembly. Finally, the assembled spring ear with the dial head is unloaded from the fixing device 2 by the unloading device 6.

[0038] When the detection device 7 detects that the new ear is a defective product in the detection step, the turntable 1 will rotate, thereby driving the fixing device 2 to move to the unloading device 6, and unloading the defective product from the unloading device 6 without manual intervention. At the same time, the detection accuracy of the laser detection device and the image detection device is higher, and there will be no jamming.

[0039] In a preferred embodiment, the calibration device 4 includes a clamp 41 that moves along the direction of the fixing device 2. A rotating motor 42 is provided at one end of the clamp 41, and the other end of the clamp 41 faces the fixing device 2. The detection device 7 is disposed above the clamp 41 and faces the fixing device 2.

[0040] When the detection device 7 detects that the notch of the spring ear is not facing upwards, it moves the clamp 41 toward the spring ear and clamps the spring ear. Then, the motor 42 rotates to drive the clamp 41 to rotate, thereby rotating the spring ear until the detection device 7 detects that the notch of the spring ear is facing upwards.

[0041] The chuck 41 is equipped with a cylinder or motor for driving its movement.

[0042] In a preferred embodiment, the calibration device 4 includes a first movable seat 43 that moves along the direction of the fixing device 2, and a clamp 41 is disposed on the first movable seat 43; the clamp 41 can be moved a greater distance by moving the first movable seat 43, and a cylinder or motor for driving its movement is disposed on the first movable seat 43.

[0043] In a preferred embodiment, a second movable seat 51 that moves laterally is provided above the dial conveying device 5, an elastic nail clamp 52 is provided on the second movable seat 51, and a detection device 7 is provided on the second movable seat 51 and faces the fixing device 2. The detection device 7 is located next to the elastic nail clamp 52.

[0044] When the detection device 7 detects that the mounting hole of the pin in the spring ear is not facing upwards, the clamp 41 moves towards the spring ear and clamps the pin. Then, the motor 42 rotates to drive the clamp 41 to rotate, so that the pin rotates until the detection device 7 detects that the mounting hole of the pin is facing upwards. Then, the second moving seat 51 moves laterally to move the elastic pin clamp 52 above the pin mounting hole. Then, the elastic pin clamp 52 moves downwards and inserts the pin into the pin mounting hole, thus completing the assembly of the spring ear with the pin. Both the second moving seat 51 and the elastic pin clamp 52 are equipped with cylinders or motors for driving their movement.

[0045] It also includes a dial head vibratory plate, which can feed the dial head to the elastic nail clamp 52.

[0046] In a preferred embodiment, the raw ear delivery device 3 includes a pin 31 that moves along the direction of the fixing device 2 and a receiving block 32 that moves laterally. A fixing seat 33 is provided between the pin 31 and the fixing device 2. A vertically moving slider 34 is provided on the fixing seat 33. A sliding groove 341 is provided on the slider 34. A through groove 331 is provided on the fixing seat 33. A receiving groove 321 is provided on the receiving block 32. The receiving groove 321, the through groove 331 and the sliding groove 341 are connected in sequence and face the fixing device 2. The pin 31 can pass through the receiving groove 321, the through groove 331 and the sliding groove 341 in sequence.

[0047] After receiving the spring ear, the receiving block 32 will move laterally to connect the receiving groove 321 with the through groove 331. At the same time, the slider 34 will move downward to connect the sliding groove 341 with the through groove 331. Then the ejector pin 31 will move towards the fixing device 2. When the ejector pin 31 enters the receiving groove 321, it will push the spring ear through the through groove 331 and the sliding groove 341 in sequence. Finally, the spring ear will enter the fixing device 2 and be fixed. The receiving block 32, the slider 34 and the ejector pin 31 are all equipped with cylinders or motors for driving their movement.

[0048] It also includes a spring ear vibrating plate, through which spring ears can be delivered to the receiving block 32.

[0049] In a preferred embodiment, the fixing device 2 includes a rotating seat 21, a fixing bracket 22 is provided on the rotating seat 21, and a fixing groove 23 is provided on the fixing bracket 22;

[0050] The spring ear can be received and fixed through the fixing slot 23. When the notch end of the spring ear is not on the outside of the rotating seat 21, the fixing bracket 22 is rotated 180° by rotating the rotating seat 21, so that the notch end of the spring ear is on the outside of the rotating seat 21.

[0051] In a preferred embodiment, a stop 24 is provided on the side of the fixing bracket 22, and the stop 24 is directly opposite the fixing groove 23. The stop 24 can prevent the spring ear from falling out of the fixing groove 23 when the ejector pin 31 pushes the spring ear towards the fixing bracket 22.

[0052] In a preferred embodiment, a limiting seat 8 is elastically connected to the side of the fixing device 2. A limiting block 81 is provided on the limiting seat 8, and a limiting groove 25 is provided on the rotating seat 21. The limiting block 81 is inserted into the limiting groove 25. An unlocking device 9 is provided on the side of the limiting seat 8. The unlocking device 9 includes an unlocking block 91 that moves along the direction of the limiting seat 8. A slot 92 is provided on the unlocking block 91, and a locking block 82 is provided on the limiting seat 8. The locking block 82 is engaged with the slot 92.

[0053] When the calibration device 4 has checked the spring ears once and found no gap in the spring ears, the locking block 82 is moved by the unlocking block 91, thereby causing the limiting block 81 to disengage from the limiting groove 25, so that the rotating seat 21 can rotate, so that the gap end of the spring ear faces the outside of the rotating seat 21.

[0054] The rotating base 21 is equipped with a motor that drives its rotation.

[0055] In a preferred embodiment, the unloading device 6 includes an inclined unloading plate 61, and an unloading clamp 62 that moves along the direction of the fixing device 2 is provided above the unloading plate 61.

[0056] During unloading, the unloading clamp 62 moves toward the fixing device 2, clamping the spring bar with the dial head. Then the unloading clamp 62 moves in the opposite direction, disengaging the spring bar with the dial head from the fixing device 2. The unloading clamp 62 then releases the spring bar with the dial head, which falls onto the unloading plate 61, completing the unloading process.

[0057] The unloading device 6 includes a finished product unloading area and a defective product unloading area. When the calibration device 4 and the detection device 7 work together and do not find the spring ear notch and the nail head mounting hole, it indicates that the spring ear is a defective product. The fixing device 2 can record information. When the fixing device 2 moves to the position of the dial conveyor 5, the dial conveyor 5 will not operate. When the fixing device 2 moves to the unloading device 6 in the defective product unloading area, the defective product can be unloaded from the unloading device 6.

[0058] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An apparatus for automatically producing watch strap spring bars, characterized in that: The device includes a turntable (1), on which a plurality of fixing devices (2) are arranged in a circular array. Around the outside of the turntable (1) are a spring ear conveying device (3), a plurality of calibration devices (4), a head conveying device (5), and a unloading device (6). The head conveying device (5) is located above one of the calibration devices (4). The head conveying device (5) includes a vertically movable elastic nail clamp (52). A detection device (7) is located above the calibration device (4). The fixing devices (2) change positions sequentially between the spring ear conveying device (3), the calibration device (4), and the unloading device (6) via the turntable (1). The detection device (7) is a laser detection device or an image detection device.

2. The apparatus for automatically producing watch strap spring bars as described in claim 1, characterized in that: The calibration device (4) includes a chuck (41) that moves along the direction of the fixing device (2). A rotating motor (42) is provided at the end of the chuck (41). The other end of the chuck (41) faces the fixing device (2). The detection device (7) is located above the chuck (41) and faces the fixing device (2).

3. The apparatus for automatically producing watch strap spring bars as described in claim 2, characterized in that: The calibration device (4) includes a first movable seat (43) that moves along the direction of the fixing device (2), and the clamp (41) is disposed on the first movable seat (43).

4. The apparatus for automatically producing watch strap spring bars as described in claim 1, characterized in that: A second movable seat (51) that moves laterally is provided above the dial conveying device (5). The elastic nail clamp (52) is provided on the second movable seat (51). The detection device (7) is provided on the second movable seat (51) and faces the fixing device (2). The detection device (7) is located on the side of the elastic nail clamp (52).

5. An apparatus for automatically producing watch strap spring bars as described in claim 3 or 4, characterized in that: The raw ear delivery device (3) includes a pin (31) that moves along the direction of the fixing device (2) and a receiving block (32) that moves laterally. A fixing seat (33) is provided between the pin (31) and the fixing device (2). A vertically moving slider (34) is provided on the fixing seat (33). A sliding groove (341) is provided on the slider (34). A through groove (331) is provided on the fixing seat (33). A receiving groove (321) is provided on the receiving block (32). The receiving groove (321), the through groove (331) and the sliding groove (341) are connected in sequence and face the fixing device (2). The pin (31) can pass through the receiving groove (321), the through groove (331) and the sliding groove (341) in sequence.

6. The apparatus for automatically producing watch strap spring bars as described in claim 5, characterized in that: The fixing device (2) includes a rotating seat (21), a fixing bracket (22) is provided on the rotating seat (21), and a fixing groove (23) is provided on the fixing bracket (22).

7. The apparatus for automatically producing watch strap spring bars as described in claim 6, characterized in that: A stop (24) is provided on the side of the fixed bracket (22), and the stop (24) is directly opposite the fixed groove (23).

8. The apparatus for automatically producing watch strap spring bars as described in claim 7, characterized in that: The fixing device (2) is elastically connected to a limiting seat (8) on the side. A limiting block (81) is provided on the limiting seat (8). A limiting groove (25) is provided on the rotating seat (21). The limiting block (81) is inserted into the limiting groove (25). An unlocking device (9) is provided on the side of the limiting seat (8). The unlocking device (9) includes an unlocking block (91) that moves along the direction of the limiting seat (8). The unlocking block (91) is provided with a slot (92). The limiting seat (8) is provided with a locking block (82). The locking block (82) is engaged with the slot (92).

9. The apparatus for automatically producing watch strap spring bars as described in claim 1, characterized in that: The unloading device (6) includes an inclined unloading plate (61), and an unloading clamp (62) that moves along the direction of the fixing device (2) is provided above the unloading plate (61).

Citation Information

Patent Citations

  • Spring bar assembling machine with steel pipe directional conveying function

    CN115582693A