Chain hammering machine

Abstract

The utility model discloses a chain hammering machine, and relates to the technical field of jewelry processing. A clamping device, a feeding device, a hammering device and a material returning device which are controlled by the same driving device and are sequentially arranged in the moving direction of the jewelry chain are mounted on the rack; the feeding device comprises a clamping mechanism, a shifting mechanism, a feeding reversing mechanism and a releasing mechanism; the clamping mechanism is arranged on the downstream of the clamping device in the X direction. The shifting mechanism is arranged between the clamping mechanism and the clamping device; the feeding reversing mechanism is vertically arranged below the shifting mechanism, and the feeding reversing mechanism and the shifting mechanism are arranged on the same side; the releasing mechanism is arranged above the clamping mechanism; the material returning device comprises a material returning pipe and a material returning reversing mechanism, and the material returning pipe and the clamping mechanism are coaxially arranged. Continuous hammering molding can be carried out on the chain links of the cross-shaped connecting structure, the production efficiency is improved, and the labor cost is reduced; meanwhile, the hammering and pressing positions are uniform, and the machining precision is high.

Description

Technical Field

[0001] This utility model relates to the field of jewelry processing technology, and in particular to a hammer chain machine. Background Technology

[0002] Throughout history, people have created and worn jewelry chains of various styles, characteristics, and designs to enhance the beauty of the human body. As people's living standards continue to improve, the demands for jewelry chain designs are also increasing to meet individual needs.

[0003] like Figure 11 and Figure 12 As shown, the jewelry chain 9 is composed of several interconnected links 91. Some jewelry chains 9 are composed of several links 91 connected in the same plane, while others are composed of two adjacent links 91 connected to form a cross structure, that is, one link 91 is placed horizontally and the other link 91 is placed vertically, and the two links 91 in different directions are connected alternately. When shaping the links 91, the existing shaping methods are mostly cold stamping, using forming molds to process the links 91 into various shapes, such as sunflower shapes, in order to achieve an aesthetically pleasing jewelry chain 9. With the continuous advancement and improvement of production technology, hammer chain machines have emerged for the stamping of links 91, which can process links by mechanical stamping. As a result, mechanized operation is gradually replacing manual operation.

[0004] However, existing hammering machines can only hammer and form links 91 that are on the same plane. For jewelry chains 9 with alternating horizontal and vertical links forming a cross structure, once the horizontal links 91 are hammered, the vertical links 91 cannot be hammered. This prevents continuous hammering and forming of this type of jewelry chain. The traditional solution is to manually rotate the jewelry chain 9 after hammering each link 91 to change the vertical link 91 to a horizontal position before hammering. This reduces production efficiency, increases labor costs, and the manual adjustment of the jewelry chain 9 can easily scratch the surface of the links 91, affecting their appearance. Furthermore, the hammering position of the adjusted links 91 cannot be guaranteed to be uniform, leading to variations in the hammering position and affecting the overall wearing effect. Utility Model Content

[0005] In view of this, the technical problem to be solved by this utility model is to provide a hammer chain machine that can continuously hammer and shape the links of the cross-connection structure, thereby improving production efficiency and reducing labor costs; at the same time, the hammering position is uniform and the processing accuracy is high.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A hammer chain machine includes a frame; the frame is equipped with a clamping device, a feeding device, a hammering device, and a retraction device, all controlled by the same drive device and arranged sequentially along the direction of movement of the jewelry chain; the direction of movement of the jewelry chain is defined as the X direction.

[0008] The clamping device is used to secure or release the jewelry chain;

[0009] The feeding device includes a clamping mechanism and a matching feeding mechanism, a feeding reversing mechanism, and a releasing mechanism. The clamping mechanism is located downstream of the clamping device along the X-axis and is used to clamp or release the jewelry chain. The feeding mechanism is located between the clamping mechanism and the clamping device and is used to move the clamping mechanism closer to the hammer pressing device along the X-axis and to reset it. The feeding reversing mechanism is located vertically below the feeding mechanism and is located on the same side as the feeding mechanism. The feeding reversing mechanism is used to drive the clamping end of the clamping mechanism to rotate 90° around its axis and to reset it. The releasing mechanism is located above the clamping mechanism and is used to drive the clamping end of the clamping mechanism to release the jewelry chain.

[0010] The hammering device is used to simultaneously hammer and press the links of the jewelry chain from both above and below to form and release them.

[0011] The unloading device includes an unloading tube and an unloading reversing mechanism adapted thereto. The unloading tube is coaxially arranged with the clamping mechanism. The unloading reversing mechanism is used to drive the unloading tube to rotate 90° around its axis and drive it to reset. When the feeding reversing mechanism drives the clamping mechanism to rotate, the unloading reversing mechanism simultaneously drives the unloading tube to rotate in the same direction.

[0012] Preferably, the clamping mechanism includes a slider rail assembly, a clamping seat, and a clamping component;

[0013] The slider-rail assembly includes a slide rail and a slider. The slide rail is connected to the frame along the X direction, the slider is adapted to the slide rail, and the slider is fixedly connected to the clamping seat.

[0014] The clamping assembly includes a clamping rod and an upper jaw. The clamping rod is arranged along the X-direction and is rotatably mounted on the clamping seat around its axis. A cross-shaped feeding channel is opened inside the clamping rod. The upper jaw is rotatably mounted on one end of the clamping rod. A clamping reset spring is installed between the upper jaw and the clamping rod. A lower pressure wheel adapted to the release mechanism is rotatably mounted on the upper jaw. A feeding reversing gear is installed on the other end of the clamping rod.

[0015] Preferably, the dialing mechanism includes a dialing component, a front dialing arm, a rear dialing arm, and a dialing reset spring;

[0016] The feeding component has an L-shaped structure. The feeding component is rotatably mounted on the frame and located between the clamping seat and the clamping device. The feeding component has a dial wheel rotatably mounted on its actuating end, and the dial wheel abuts against the clamping seat.

[0017] The front feeding arm is arranged along the Y direction and rotatably mounted on the frame. One end of the front feeding arm abuts against the feeding component, and the other end of the front feeding arm is connected to the drive device. The Y direction is perpendicular to the X direction.

[0018] The rear feed arm is arranged along the Y direction and rotatably mounted on the frame. The rear feed arm is located upstream of the front feed arm along the movement direction of the jewelry chain. One end of the rear feed arm abuts against the feed member, and the other end of the rear feed arm is connected to the drive device. The rotation angle of the rear feed arm is greater than that of the front feed arm.

[0019] One end of the push-to-reset spring is connected to the frame, and the other end of the push-to-reset spring is connected to the clamping seat.

[0020] Preferably, the feeding reversing mechanism and the unloading reversing mechanism have the same structure; the feeding reversing mechanism includes a reversing component, a reversing push rod, a reversing arm assembly, and a reversing reset spring;

[0021] The reversing component is rotatably mounted on the clamping seat. The reversing component is provided with sector teeth that are adapted to the feeding reversing gear. One end of the reversing component abuts against the reversing push rod.

[0022] The reversing push rod is slidably mounted on the frame along the Y direction;

[0023] One end of the reversing arm assembly is rotatably mounted on the frame, and the other end of the reversing arm assembly is hinged to the reversing push rod. The reversing arm assembly is connected to the drive device.

[0024] One end of the reversing reset spring is connected to the frame, and the other end of the reversing reset spring is connected to the reversing component.

[0025] Preferably, the release mechanism includes a release seat, a release lever, a release arm, and a release spring;

[0026] The release seat is mounted on the frame;

[0027] The release lever is vertically slidably mounted on the release seat. The release lever is located above the lower pressure wheel. The release lever has an inverted T-shaped structure and its bottom extends along the X direction. When the release lever abuts against the lower pressure wheel and moves downward, the clamping end of the upper jaw separates from the clamping lever.

[0028] The release arm is arranged along the Y direction and rotatably mounted on the frame. One end of the release arm abuts against the release pressure rod, and the other end of the release arm is connected to the drive device.

[0029] The release spring is vertically housed in the release seat, and the release spring abuts against the release lever and the release seat.

[0030] Preferably, the hammer pressing device includes a hammer pressing base and two hammer pressing mechanisms with identical structures and symmetrically arranged.

[0031] The hammer pressure seat is mounted on the frame;

[0032] The hammer pressing mechanism includes a hammer head, a hammer pressing spring, and a hammer pressing arm; the hammer head is slidably disposed vertically on the hammer pressing base; the hammer pressing spring is housed within the hammer pressing base and abuts against the hammer head and the hammer pressing base; the hammer pressing arm is disposed along the Y direction and rotatably mounted on the frame, one end of the hammer pressing arm is connected to the hammer head, and the other end of the hammer pressing arm is connected to the driving device.

[0033] Preferably, the unloading device includes an unloading seat, which is mounted on the frame;

[0034] The ejector tube is arranged along the X direction and is rotatably mounted on the ejector seat around its axis. The ejector tube has an ejector channel with the same structure and position as the feeding channel. One end of the ejector tube is equipped with an ejector reversing gear adapted to the ejector reversing mechanism.

[0035] Preferably, the clamping device includes a clamping seat, an upper clamp, a lower clamp, a clamping release spring, and a clamping arm;

[0036] The clamping seat is mounted on the frame;

[0037] The upper clamp and the lower clamp are arranged opposite to each other and installed inside the clamping seat. T-shaped slides are provided on the opposite surfaces of the upper clamp and the lower clamp.

[0038] The clamping release spring abuts between the upper clamp and the lower clamp;

[0039] The clamping arm is arranged along the Y direction and rotatably mounted on the frame. One end of the clamping arm abuts against the upper clamp, and the other end of the clamping arm is connected to the drive device.

[0040] Preferably, the drive device includes a motor, a main shaft, and a plurality of cams;

[0041] The main shaft is rotatably mounted on the frame along the X-axis, and the main shaft is poweredly connected to the motor;

[0042] The cam is mounted on the main shaft and includes a clamping cam for driving the clamping device, a feeding cam group for driving the feeding mechanism, a feeding reversing cam for driving the feeding reversing mechanism, a release cam for driving the release mechanism, a hammer pressing cam group for driving the hammer pressing device, and a material return reversing cam for driving the material return reversing mechanism.

[0043] Preferably, the frame is also equipped with a feeding device and a discharging device;

[0044] The feeding device includes a feeding motor, a feeding tray, a feeding tensioning wheel, a feeding sensor and limit assembly, and a feeding reversing wheel; the feeding motor is controlled by the feeding sensor and limit assembly; the feeding tray is rotatably mounted on the frame and is poweredly connected to the feeding motor; the feeding tensioning wheel is vertically slidably mounted on the frame; the feeding reversing wheel is rotatably mounted upstream of the clamping device;

[0045] The feeding device includes a feeding reversing wheel, a feeding sensing and limiting component, a feeding tensioning wheel, a feeding clamping wheel assembly, and a feeding motor; the feeding reversing wheel is rotatably mounted downstream of the unloading device; the feeding tensioning wheel is vertically slidably mounted on the frame; the feeding clamping wheel assembly includes a feeding active clamping wheel and a feeding driven clamping wheel, the feeding active clamping wheel is poweredly connected to the feeding motor, and the feeding driven clamping wheel abuts against the feeding active clamping wheel through a feeding clamping tension spring; the feeding motor is controlled by the feeding sensing and limiting component.

[0046] After adopting the above technical solution, the beneficial effects of this utility model are:

[0047] The hammer chain machine of this application includes a frame; a clamping device, a feeding device, a hammering device, and a retraction device are installed on the frame and are controlled by the same drive device and arranged sequentially along the movement direction of the jewelry chain; the movement direction of the jewelry chain is defined as the X direction; wherein, the clamping device is used to fix or release the jewelry chain; the feeding device includes a clamping mechanism and a corresponding feeding mechanism, a feeding reversing mechanism, and a release mechanism; the clamping mechanism is arranged downstream of the clamping device along the X direction, and is used to clamp or release the jewelry chain; the feeding mechanism is arranged between the clamping mechanism and the clamping device, and is used to move the clamping mechanism along the X direction toward the hammering device and drive it to reset; the feeding reversing mechanism is arranged vertically... The feeding reversing mechanism is located below the feeding mechanism and is located on the same side as the feeding mechanism. The feeding reversing mechanism is used to drive the clamping end of the clamping mechanism to rotate 90° around its axis and drive it to reset. The release mechanism is located above the clamping mechanism and is used to drive the clamping end of the clamping mechanism to release. The hammer pressing device is used to hammer and press the links of the jewelry chain simultaneously from top to bottom and release them. The unloading device includes an unloading tube and an unloading reversing mechanism adapted to it. The unloading tube is coaxial with the clamping mechanism. The unloading reversing mechanism is used to drive the unloading tube to rotate 90° around its axis and drive it to reset. When the feeding reversing mechanism drives the clamping mechanism to rotate, the unloading reversing mechanism simultaneously drives the unloading tube to rotate in the same direction.

[0048] When a link in a jewelry chain needs to be hammered, the feeding mechanism moves the clamping mechanism, which then clamps the chain and moves it closer to the hammering device, placing one link inside. The hammering device then hammers and shapes it. When the next link needs to be hammered, the feeding reversing mechanism drives the clamping mechanism to rotate 90°, and simultaneously, the unloading reversing mechanism drives the unloading tube to rotate in the same direction. The clamping mechanism causes the jewelry chain to rotate 90°, and then the feeding mechanism moves the clamping mechanism to place the next link inside the hammering device, which then hammers and shapes it. After two links are hammered, the clamping device clamps the chain, the clamping mechanism rotates 90° in the opposite direction, the unloading tube rotates 90° in the opposite direction, and the clamping mechanism resets, ready for hammering the next link. In this process, the traditional method of manually rotating the chain for adjustment is replaced, realizing continuous hammer pressing and forming, improving production efficiency and reducing labor costs. Secondly, the clamping mechanism and the hammer pressing device work together to fix the feeding position of the chain links and unify the hammer pressing position of the hammer pressing device, which improves the hammer pressing accuracy of the chain links and improves the wearing effect of the jewelry chain. Attached Figure Description

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0050] Figure 1 This is a schematic diagram of the structure of the hammer chain machine according to an embodiment of this utility model;

[0051] Figure 2 yes Figure 1 A structural diagram from another direction;

[0052] Figure 3 yes Figure 1 Schematic diagram of the central feeding device;

[0053] Figure 4 yes Figure 3 The main view;

[0054] Figure 5 yes Figure 4 Side view;

[0055] Figure 6 yes Figure 1 Schematic diagram of the intermediate hammer pressing device;

[0056] Figure 7 yes Figure 6 Side view;

[0057] Figure 8 yes Figure 2 Schematic diagram of the material return device;

[0058] Figure 9 yes Figure 8 Side view;

[0059] Figure 10 yes Figure 1 A schematic diagram of the structure of the drive unit from another direction;

[0060] Figure 11 This is a schematic diagram of the jewelry chain before it is formed;

[0061] Figure 12 This is a schematic diagram of the structure of the finished jewelry chain;

[0062] In the picture:

[0063] 1. Rack;

[0064] 2. Drive unit; 21. Main shaft; 22. Clamping cam; 23. Feeding cam assembly; 24. Feed reversing cam; 25. Release cam; 26. Hammer pressing cam assembly; 27. Unloading reversing cam;

[0065] 3. Clamping device; 31. Clamping seat; 32. Upper clamp; 33. Lower clamp; 34. Clamping arm;

[0066] 4. Feeding device; 41. Clamping mechanism; 411. Slider rail assembly; 412. Clamping seat; 413. Clamping assembly; 4131. Clamping rod; 4132. Upper jaw; 4133. Feeding channel; 4134. Lower pressure roller; 4135. Feeding reversing gear; 42. Feeding mechanism; 421. Feeding component; 422. Front feeding arm; 423. Rear feeding arm; 424. Diverting wheel; 43. Feeding reversing mechanism; 431. Reversing component; 4311. Sector gear; 432. Reversing push rod; 433. Reversing arm assembly; 434. Reversing reset spring; 44. Release mechanism; 441. Release seat; 442. Release pressure rod; 443. Release arm;

[0067] 5. Hammering device; 51. Hammering base; 52. Hammering mechanism; 521. Hammer head; 522. Hammering arm;

[0068] 6. Unloading device; 61. Unloading pipe; 611. Unloading channel; 62. Unloading reversing mechanism; 63. Unloading seat; 64. Unloading reversing gear;

[0069] 7. Feeding device; 71. Feeding motor; 72. Feeding tray; 73. Feeding tensioning wheel; 74. Feeding sensor limit assembly; 75. Feeding reversing wheel;

[0070] 8. Feeding device; 81. Feeding reversing wheel; 82. Feeding sensor limit assembly; 83. Feeding tension wheel; 84. Feeding clamping wheel assembly; 85. Feeding motor;

[0071] 9. Jewelry chain; 91. Chain link. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0073] like Figures 1 to 3 As shown in the figure, the present invention includes a frame 1; the frame 1 is equipped with a clamping device 3, a feeding device 4, a hammer pressing device 5, and a material ejection device 6, which are controlled by the same driving device 2 and are arranged sequentially along the moving direction of the jewelry chain; wherein, the moving direction of the jewelry chain is defined as the X direction.

[0074] In this application, the clamping device 3 is used to fix or release the jewelry chain.

[0075] The feeding device 4 includes a clamping mechanism 41 and a matching feeding mechanism 42, a feeding reversing mechanism 43, and a releasing mechanism 44. The clamping mechanism 41 is located downstream of the clamping device 3 along the X-direction and is used to clamp or release the jewelry chain. The feeding mechanism 42 is located between the clamping mechanism 41 and the clamping device 3 and is used to move the clamping mechanism 41 toward the hammer pressing device 5 along the X-direction and to reset it. The feeding reversing mechanism 43 is located vertically below the feeding mechanism 42 and is located on the same side as the feeding mechanism 42. The feeding reversing mechanism 43 is used to drive the clamping end of the clamping mechanism 41 to rotate 90° around its axis and to reset it. The releasing mechanism 44 is located above the clamping mechanism 41 and is used to drive the clamping end of the clamping mechanism 41 to release the jewelry chain.

[0076] When the clamping mechanism 41 clamps the jewelry chain, the clamping device 3 is in a released state; when the clamping mechanism 41 releases the jewelry chain, the clamping device 3 is in a clamped state.

[0077] The hammering device 5 is used to simultaneously hammer and press the links of the jewelry chain from both above and below to form and release them.

[0078] The unloading device 6 includes an unloading tube 61 and an unloading reversing mechanism 62 adapted thereto. The unloading tube 61 is coaxially arranged with the clamping mechanism 41. The unloading reversing mechanism 62 is used to drive the unloading tube 61 to rotate 90° around its axis and drive it to reset. When the feeding reversing mechanism 43 drives the clamping mechanism 41 to rotate, the unloading reversing mechanism 62 simultaneously drives the unloading tube 61 to rotate in the same direction.

[0079] When it is necessary to hammer-press a link in the jewelry chain, the feeding mechanism 42 moves the clamping mechanism 41, which clamps the jewelry chain and moves it closer to the hammering device 5, so that one link is placed in the hammering device 5 and hammered. When it is necessary to hammer the next link, the feeding reversing mechanism 43 drives the clamping mechanism 41 to rotate 90°, and at the same time, the unloading reversing mechanism 62 drives the unloading tube 61 to rotate in the same direction. The clamping mechanism drives the jewelry chain to rotate 90°, and then the feeding mechanism 42 moves the clamping mechanism 41, so that the next link is placed in the hammering device 5 and hammered. After two links are hammered, the clamping device 3 clamps the jewelry chain, the clamping mechanism 41 rotates 90° in the opposite direction, the unloading tube 61 rotates 90° in the opposite direction, and the clamping mechanism 41 resets, ready to hammer the next link. In this process, the traditional method of manually rotating the chain for adjustment is replaced, and continuous hammer pressing is achieved, which improves production efficiency and reduces labor costs. Secondly, the clamping mechanism 41 cooperates with the hammer pressing device 5 to fix the feeding position of the chain link and unify the hammer pressing position of the hammer pressing device 5, thereby improving the hammer pressing processing accuracy of the chain link and improving the wearing effect of the jewelry chain.

[0080] like Figure 1 , Figures 3 to 5 As shown in the figure, preferably, the clamping mechanism 41 includes a slider-rail assembly 411, a clamping seat 412, and a clamping component 413; wherein, the slider-rail assembly 411 includes a slide rail and a slider, the slide rail is connected to the frame 1 along the X direction, the slider is adapted to the slide rail, and the slider is fixedly connected to the clamping seat 412; the slider can drive the clamping seat 412 to reciprocate along the X direction.

[0081] The clamping assembly 413 includes a clamping rod 4131 and an upper jaw 4132. The clamping rod 4131 is arranged along the X direction and is rotatably mounted on the clamping seat 412 around its axis. A cross-shaped feeding channel 4133 is opened in the clamping rod 4131. The upper jaw 4132 is rotatably mounted on one end of the clamping rod 4131. A clamping reset spring (not shown in the figure) is installed between the upper jaw 4132 and the clamping rod 4131. A lower pressure wheel 4134 adapted to the release mechanism 44 is rotatably mounted on the upper jaw 4132. A feeding reversing gear 4135 is installed on the other end of the clamping rod 4131.

[0082] The upper jaw 4132 is installed on the clamping rod 4131 at one end near the hammer pressing device 5. The clamping reset spring keeps the upper jaw 4132 in contact with the clamping rod 4131 to clamp the jewelry chain. Only when the release mechanism 44 moves downward to abut against the lower pressure wheel 4134 and continues to move downward will the upper jaw 4132 separate from the clamping rod 4131 and the jewelry chain be released.

[0083] In this application, the feeding mechanism 42 includes a feeding component 421, a front feeding arm 422, a rear feeding arm 423, and a feeding reset spring (obscured in the figure). The feeding component 421 has an L-shaped structure and is rotatably mounted on the frame 1 and located between the clamping seat 412 and the clamping device 3. The feeding end of the feeding component 421 is rotatably mounted with a dial wheel 424, which abuts against the clamping seat 412.

[0084] The front feed arm 422 is arranged along the Y direction and rotatably mounted on the frame 1. One end of the front feed arm 422 abuts against the feed member 421, and the other end of the front feed arm 422 is connected to the drive device 2; the Y direction is perpendicular to the X direction.

[0085] The rear feed arm 423 is arranged along the Y direction and rotatably mounted on the frame 1. The rear feed arm 423 is arranged upstream of the front feed arm 422 along the movement direction of the jewelry chain. One end of the rear feed arm 423 abuts against the feed member 421, and the other end of the rear feed arm 423 is connected to the drive device 2. The rotation angle of the rear feed arm 423 is greater than the rotation angle of the front feed arm 422.

[0086] Both the front feed arm 422 and the rear feed arm 423 are controlled by the drive device 2. Driven by the drive device 2, the front feed arm 422 first drives the feed member 421 to rotate around its connection with the frame 1, which in turn drives the dial wheel 424 to push the clamping seat 412 to move along the X direction, thus feeding the current chain link. After the current chain link is hammered and the feeding reversing mechanism 43 drives the clamping end of the clamping mechanism 41 to rotate 90° around its axis, the rear feed arm 423 is driven by the drive device 2, which drives the feed member 421 to rotate around its connection with the frame 1. Based on the current position, the feed member 421 drives the dial wheel 424 to continue pushing the clamping seat 412 to move along the X direction, thus feeding the next chain link.

[0087] One end of the push-to-reset spring is connected to the frame 1, and the other end of the push-to-reset spring is connected to the clamping seat 412. After the clamping seat 412 completes two movements and the feeding reversing mechanism drives the clamping mechanism to rotate 90° in the opposite direction to reset, the push-to-reset spring drives the clamping seat 412 to move in the opposite direction along the X direction to reset.

[0088] In this application, the feeding reversing mechanism 43 has the same structure as the unloading reversing mechanism 62; the feeding reversing mechanism 43 includes a reversing component 431, a reversing push rod 432, a reversing arm assembly 433, and a reversing reset spring 434. The reversing component 431 is rotatably mounted on the clamping seat 412, and the reversing component 431 is provided with sector teeth 4311 adapted to the feeding reversing gear 4135. One end of the reversing component 431 abuts against the reversing push rod 432.

[0089] The reversing push rod 432 is slidably mounted on the frame 1 along the Y direction; one end of the reversing arm assembly 433 is rotatably mounted on the frame 1, and the other end of the reversing arm assembly 433 is hinged to the reversing push rod 432. The reversing arm assembly 433 is connected to the drive device 2. The reversing arm assembly drives the reversing push rod 432 to move along the Y direction, which drives the reversing member 431 to rotate around its mounting point with the clamping seat 412. This enables the feeding reversing gear 4135 to rotate through the sector gear 4311, which in turn drives the clamping assembly 413 to rotate together.

[0090] One end of the reversing reset spring 434 is connected to the frame 1, and the other end of the reversing reset spring 434 is connected to the reversing member 431. When the reversing member 431 needs to drive the feeding reversing gear 4135 to reset, the reversing reset spring 434 pulls the reversing member 431 to rotate in the opposite direction, so that the sector gear 4311 drives the feeding reversing gear 4135 to rotate in the opposite direction, and then drives the clamping assembly 413 to complete the reverse reset.

[0091] In this application, the release mechanism 44 includes a release seat 441, a release lever 442, a release arm 443, and a release spring (obscured in the figure). The release seat 441 is mounted on the frame 1.

[0092] The release lever 442 is vertically slidably mounted on the release seat 441. The release lever 442 is located above the lower pressure wheel 4134. The release lever 442 has an inverted T-shaped structure and its bottom extends along the X direction. When the release lever 442 abuts against the lower pressure wheel 4134 and moves downward, the clamping end of the upper jaw 4132 separates from the clamping rod 4131.

[0093] When the clamping assembly 413 needs to be moved in the opposite direction of the X direction to reset, the release lever 442 abuts against the lower pressure wheel 4134 and moves downward. The push reset spring drives the clamping seat 412 to move in the opposite direction of the X direction. At this time, there is rolling friction between the lower pressure wheel 4134 and the release lever 442, which reduces the frictional resistance.

[0094] The release arm 443 is arranged along the Y direction and rotatably mounted on the frame 1. One end of the release arm 443 abuts against the release pressure rod 442, and the other end of the release arm 443 is connected to the drive device 2. The release spring is vertically housed in the release seat 441 and abuts against the release pressure rod 442 and the release seat 441.

[0095] like Figure 1 , Figures 6 to 7 As shown in the figure, the hammer pressing device 5 in this application includes a hammer pressing base 51 and two hammer pressing mechanisms 52 with identical structures and symmetrical arrangement. The hammer pressing base 51 is mounted on the frame 1; the hammer pressing mechanism 52 includes a hammer head 521, a hammer pressing spring (covered in the figure) and a hammer pressing arm 522.

[0096] The hammer head 521 is vertically slidably mounted on the hammer pressure seat 51; the hammer pressure spring is housed in the hammer pressure seat 51 and abuts against the hammer head 521 and the hammer pressure seat 51; the hammer pressure arm 522 is arranged along the Y direction and rotatably mounted on the frame 1, one end of the hammer pressure arm 522 is connected to the hammer head 521, and the other end of the hammer pressure arm 522 is connected to the drive device 2.

[0097] Driven by the drive device 2, the hammer arm 522 drives the hammer head 521 to move back and forth vertically. The two hammer heads 521 move closer or further away from each other at the same time, hammering and shaping the upper and lower surfaces of the chain link. This process shapes both sides at once, improving processing efficiency and ensuring processing accuracy.

[0098] like Figure 1 , Figures 8 to 9 As shown in the present application, the unloading device 6 includes an unloading seat 63, which is mounted on the frame 1.

[0099] The ejector tube 61 is arranged along the X direction and is rotatably mounted on the ejector seat 63 around its axis. The ejector tube 61 has an ejector channel 611 with the same structure and position as the feeding channel 4133. One end of the ejector tube 61 is equipped with an ejector reversing gear 64 that is compatible with the ejector reversing mechanism 62.

[0100] The feeding reversing mechanism 43 and the unloading reversing mechanism 62 have the same structure. Therefore, the working principle of the unloading reversing mechanism 62 driving the unloading tube 61 to rotate and reverse reset is the same as the working principle of the feeding reversing mechanism 43 driving the clamping assembly 413 to rotate and reverse reset, which will not be described again here.

[0101] like Figure 1 , Figure 2 As shown in the figure, in this application, the clamping device 3 includes a clamping seat 31, an upper clamp 32, a lower clamp 33, a clamping release spring (obscured in the figure), and a clamping arm 34. The clamping seat 31 is mounted on the frame 1.

[0102] The upper clamp 32 and lower clamp 33 are arranged opposite each other and installed inside the clamping base 31. T-shaped slides are provided on the opposite surfaces of both the upper clamp 32 and lower clamp 33. These two slides, arranged opposite each other, form a cross-shaped channel to facilitate the passage of the jewelry chain. When the clamping device 3 is in the released state, the height of this cross-shaped channel in the X direction is greater than the height of the feed channel 4133 and the ejection channel 611. Therefore, it does not affect the movement of the jewelry chain and reduces frictional damage to the chain. When the clamping device 3 clamps and fixes the jewelry chain, the two slides move closer together to complete the clamping of the jewelry chain. Simultaneously, during this process, the vertical links of the jewelry chain are accommodated within the slides, preventing damage to the links.

[0103] The clamping release spring abuts between the upper clamp 32 and the lower clamp 33; the clamping arm 34 is arranged along the Y direction and rotatably mounted on the frame 1, one end of the clamping arm 34 abuts against the upper clamp 32, and the other end of the clamping arm 34 is connected to the drive device 2.

[0104] The power for the upper clamp 32 to move downward comes from the drive device 2 and is transmitted by the clamping arm 34, while the power for the upper clamp 32 to move upward comes from the elastic release of the clamping release spring.

[0105] like Figure 10 As shown in the figure, in this application, the drive device 2 includes a motor (not shown), a main shaft 21, and several cams. The main shaft 21 is rotatably mounted on the frame 1 along the X direction, and the main shaft 21 is poweredly connected to the motor.

[0106] The cam is mounted on the main shaft 21. The cam includes a clamping cam 22 for driving the clamping device 3, a feeding cam group 23 for driving the feeding mechanism 42, a feeding reversing cam 24 for driving the feeding reversing mechanism 43, a release cam 25 for driving the release mechanism 44, a hammer pressing cam group 26 for driving the hammer pressing device 5, and a material unloading reversing cam 27 for driving the material unloading reversing mechanism 62.

[0107] like Figure 1 , Figure 2As shown, a feeding device 7 and a discharging device 8 are also installed on the frame 1. Among them,

[0108] The feeding device 7 includes a feeding motor 71, a feeding tray 72, a feeding tensioning wheel 73, a feeding sensing and limiting assembly 74, and a feeding reversing wheel 75. The feeding motor 71 is controlled by the feeding sensing and limiting assembly 74; the feeding tray 72 is rotatably mounted on the frame 1 and is poweredly connected to the feeding motor 71; the feeding tensioning wheel 73 is vertically slidably mounted on the frame 1; and the feeding reversing wheel 75 is rotatably mounted upstream of the clamping device 3.

[0109] The feeding sensing and limiting component 74 includes an upper feeding limit sensor and a lower feeding limit sensor, and is adapted to the feeding tensioning wheel 73. When the feeding tensioning wheel 73 moves upward and is detected by the upper feeding limit sensor, it indicates that the feeding speed of the jewelry chain is lower than the forming speed. At this time, the rotation speed of the feeding motor 71 increases, thereby increasing the feeding speed of the jewelry chain. When the feeding tensioning wheel 73 moves downward and is detected by the lower feeding limit sensor, it indicates that the feeding speed of the jewelry chain is higher than the forming speed. At this time, the rotation speed of the feeding motor 71 decreases, thereby reducing the feeding speed of the jewelry chain.

[0110] The feeding device 8 includes a feeding reversing wheel 81, a feeding sensing and limiting component 82, a feeding tensioning wheel 83, a feeding clamping wheel assembly 84, and a feeding motor 85. The feeding reversing wheel 81 is rotatably mounted downstream of the unloading device 6; the feeding tensioning wheel 83 is vertically slidably mounted on the frame 1; the feeding clamping wheel assembly 84 includes a feeding active clamping wheel and a feeding driven clamping wheel. The feeding active clamping wheel is poweredly connected to the feeding motor 85, and the feeding driven clamping wheel abuts against the feeding active clamping wheel through a feeding clamping tension spring (not shown in the figure); the feeding motor 85 is controlled by the feeding sensing and limiting component 82.

[0111] The feeding device 8 controls the feeding speed of the jewelry chain. Its working principle is the same as that of the feeding device, which controls the feeding speed of the jewelry chain, and will not be described in detail here.

[0112] Based on the aforementioned hammer chain machine, the working steps for processing jewelry chains are described as follows:

[0113] Threading the chain; passing the jewelry chain sequentially through the clamping device, feeding device, hammering device, and unloading device; the feeding device includes a clamping mechanism and a matching feeding mechanism, feeding reversing mechanism, and release mechanism; confirming that the clamping mechanism is in the initial position and clamps the jewelry chain, and that the clamping device is in the released state of the jewelry chain.

[0114] First feeding: The feeding mechanism moves the clamping mechanism toward the hammer pressing device for the first time, causing the jewelry chain to move together, so that the horizontally arranged links of the jewelry chain are inside the hammer pressing device; at this time, the clamping mechanism is in the first feeding position.

[0115] First hammering; the hammering device hammers and shapes the current chain link, and releases the current chain link after shaping.

[0116] The jewelry chain flips over; the feeding reversing mechanism drives the clamping mechanism to clamp the jewelry chain and rotate it 90°, while the unloading reversing mechanism drives the unloading tube to rotate 90° in the same direction, and the next chain link set vertically rotates to a horizontal setting;

[0117] Second feeding: The feeding mechanism continues to move the clamping mechanism closer to the hammer pressing device, causing the jewelry chain to move together, so that the next horizontally positioned link is inside the hammer pressing device, replacing the previous link; at this time, the clamping mechanism is in the second feeding position.

[0118] Second hammering; the hammering device hammers and shapes the current chain link, and releases the current chain link after shaping.

[0119] Jewelry chain clamping; the clamping device clamps the jewelry chain, and the holding mechanism releases the jewelry chain;

[0120] Reset; the feeding reversing mechanism drives the clamping mechanism to rotate 90° in the opposite direction, while the unloading reversing mechanism drives the unloading tube to rotate 90° in the opposite direction; the conveying mechanism drives the clamping mechanism to move along X to the initial position;

[0121] Jewelry chain clamping; the clamping mechanism clamps the jewelry chain, and the clamping device releases the jewelry chain;

[0122] Repeat steps S11 to S18 until all links are hammered into shape.

[0123] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hammer chain machine, comprising a frame; characterized in that, The frame is equipped with a clamping device, a feeding device, a hammer pressing device, and a material ejection device, all controlled by the same drive device and arranged sequentially along the direction of movement of the jewelry chain; the direction of movement of the jewelry chain is defined as the X direction. The clamping device is used to secure or release the jewelry chain; The feeding device includes a clamping mechanism and a matching feeding mechanism, a feeding reversing mechanism, and a releasing mechanism. The clamping mechanism is located downstream of the clamping device along the X-axis and is used to clamp or release the jewelry chain. The feeding mechanism is located between the clamping mechanism and the clamping device and is used to move the clamping mechanism closer to the hammer pressing device along the X-axis and to reset it. The feeding reversing mechanism is located vertically below the feeding mechanism and is located on the same side as the feeding mechanism. The feeding reversing mechanism is used to drive the clamping end of the clamping mechanism to rotate 90° around its axis and to reset it. The release mechanism is located above the clamping mechanism, and the release mechanism is used to drive the clamping end of the clamping mechanism to release the jewelry chain; The hammering device is used to simultaneously hammer and press the links of the jewelry chain from both above and below to form and release them. The unloading device includes an unloading tube and an unloading reversing mechanism adapted thereto. The unloading tube is coaxially arranged with the clamping mechanism. The unloading reversing mechanism is used to drive the unloading tube to rotate 90° around its axis and drive it to reset. When the feeding reversing mechanism drives the clamping mechanism to rotate, the unloading reversing mechanism simultaneously drives the unloading tube to rotate in the same direction.

2. The hammer chain machine as described in claim 1, characterized in that, The clamping mechanism includes a slider rail assembly, a clamping base, and a clamping component; The slider-rail assembly includes a slide rail and a slider. The slide rail is connected to the frame along the X direction, the slider is adapted to the slide rail, and the slider is fixedly connected to the clamping seat. The clamping assembly includes a clamping rod and an upper jaw. The clamping rod is arranged along the X-direction and is rotatably mounted on the clamping seat around its axis. A cross-shaped feeding channel is opened inside the clamping rod. The upper jaw is rotatably mounted on one end of the clamping rod. A clamping reset spring is installed between the upper jaw and the clamping rod. A lower pressure wheel adapted to the release mechanism is rotatably mounted on the upper jaw. A feeding reversing gear is installed on the other end of the clamping rod.

3. The hammer chain machine as described in claim 2, characterized in that, The dialing mechanism includes a dialing component, a front dialing arm, a rear dialing arm, and a dialing reset spring; The feeding component has an L-shaped structure. The feeding component is rotatably mounted on the frame and located between the clamping seat and the clamping device. The feeding component has a dial wheel rotatably mounted on its actuating end, and the dial wheel abuts against the clamping seat. The front feeding arm is arranged along the Y direction and rotatably mounted on the frame. One end of the front feeding arm abuts against the feeding component, and the other end of the front feeding arm is connected to the drive device. The Y direction is perpendicular to the X direction. The rear feed arm is arranged along the Y direction and rotatably mounted on the frame. The rear feed arm is located upstream of the front feed arm along the movement direction of the jewelry chain. One end of the rear feed arm abuts against the feed member, and the other end of the rear feed arm is connected to the drive device. The rotation angle of the rear feed arm is greater than that of the front feed arm. One end of the push-to-reset spring is connected to the frame, and the other end of the push-to-reset spring is connected to the clamping seat.

4. The hammer chain machine as described in claim 2, characterized in that, The feeding reversing mechanism has the same structure as the unloading reversing mechanism; the feeding reversing mechanism includes a reversing component, a reversing push rod, a reversing arm assembly, and a reversing reset spring. The reversing component is rotatably mounted on the clamping seat. The reversing component is provided with sector teeth that are adapted to the feeding reversing gear. One end of the reversing component abuts against the reversing push rod. The reversing push rod is slidably mounted on the frame along the Y direction; One end of the reversing arm assembly is rotatably mounted on the frame, and the other end of the reversing arm assembly is hinged to the reversing push rod. The reversing arm assembly is connected to the drive device. One end of the reversing reset spring is connected to the frame, and the other end of the reversing reset spring is connected to the reversing component.

5. The hammer chain machine as described in claim 2, characterized in that, The release mechanism includes a release seat, a release lever, a release arm, and a release spring; The release seat is mounted on the frame; The release lever is vertically slidably mounted on the release seat. The release lever is located above the lower pressure wheel. The release lever has an inverted T-shaped structure and its bottom extends along the X direction. When the release lever abuts against the lower pressure wheel and moves downward, the clamping end of the upper jaw separates from the clamping lever. The release arm is arranged along the Y direction and rotatably mounted on the frame. One end of the release arm abuts against the release pressure rod, and the other end of the release arm is connected to the drive device. The release spring is vertically housed in the release seat, and the release spring abuts against the release lever and the release seat.

6. The hammer chain machine as described in claim 2, characterized in that, The hammer pressing device includes a hammer pressing base and two hammer pressing mechanisms with the same structure and symmetrical arrangement. The hammer pressure seat is mounted on the frame; The hammer pressing mechanism includes a hammer head, a hammer pressing spring, and a hammer pressing arm; the hammer head is slidably disposed vertically on the hammer pressing base; the hammer pressing spring is housed within the hammer pressing base and abuts against the hammer head and the hammer pressing base; the hammer pressing arm is disposed along the Y direction and rotatably mounted on the frame, one end of the hammer pressing arm is connected to the hammer head, and the other end of the hammer pressing arm is connected to the driving device.

7. The hammer chain machine as described in claim 2, characterized in that, The unloading device includes an unloading seat, which is mounted on the frame; The ejector tube is arranged along the X direction and is rotatably mounted on the ejector seat around its axis. The ejector tube has an ejector channel with the same structure and position as the feeding channel. One end of the ejector tube is equipped with an ejector reversing gear adapted to the ejector reversing mechanism.

8. The hammer chain machine as described in claim 2, characterized in that, The clamping device includes a clamping seat, an upper clamp, a lower clamp, a clamping release spring, and a clamping arm; The clamping seat is mounted on the frame; The upper clamp and the lower clamp are arranged opposite to each other and installed inside the clamping seat. T-shaped slides are provided on the opposite surfaces of the upper clamp and the lower clamp. The clamping release spring abuts between the upper clamp and the lower clamp; The clamping arm is arranged along the Y direction and rotatably mounted on the frame. One end of the clamping arm abuts against the upper clamp, and the other end of the clamping arm is connected to the drive device.

9. The hammer chain machine as described in claim 1, characterized in that, The drive device includes a motor, a main shaft, and several cams; The main shaft is rotatably mounted on the frame along the X-axis, and the main shaft is poweredly connected to the motor; The cam is mounted on the main shaft and includes a clamping cam for driving the clamping device, a feeding cam group for driving the feeding mechanism, a feeding reversing cam for driving the feeding reversing mechanism, a release cam for driving the release mechanism, a hammer pressing cam group for driving the hammer pressing device, and a material return reversing cam for driving the material return reversing mechanism.

10. The hammer chain machine as described in claim 1, characterized in that, The frame is also equipped with a feeding device and a discharging device; The feeding device includes a feeding motor, a feeding tray, a feeding tensioning wheel, a feeding sensor and limit assembly, and a feeding reversing wheel; the feeding motor is controlled by the feeding sensor and limit assembly; the feeding tray is rotatably mounted on the frame and is poweredly connected to the feeding motor; the feeding tensioning wheel is vertically slidably mounted on the frame; the feeding reversing wheel is rotatably mounted upstream of the clamping device; The feeding device includes a feeding reversing wheel, a feeding sensing and limiting component, a feeding tensioning wheel, a feeding clamping wheel assembly, and a feeding motor; the feeding reversing wheel is rotatably mounted downstream of the unloading device; the feeding tensioning wheel is vertically slidably mounted on the frame; the feeding clamping wheel assembly includes a feeding active clamping wheel and a feeding driven clamping wheel, the feeding active clamping wheel is poweredly connected to the feeding motor, and the feeding driven clamping wheel abuts against the feeding active clamping wheel through a feeding clamping tension spring; The feeding motor is controlled by the feeding sensor limit component.

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