A pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set

Abstract

This invention discloses a pin insertion mechanism for an automatic assembly equipment for a three-piece lobster key ring set. It includes a base mounted on a frame, with a pin rod pusher on the base; a cutting device mounted above the base; a wire feeding device located between a wire spool and the base, used to feed wires at fixed intervals to the cutting device, which cuts the wires to form a pin rod that is placed on the pin rod pusher; a steel support auxiliary device fixed to an assembly frame, used to open the key ring and create a gap; and a pin pushing device mounted on the base, used to push the pin rod on the pin rod pusher into the gap. This invention eliminates the need for pre-processing of the pin rod using additional equipment. The steel support auxiliary device, through a clever structural design, drives the steel support pry head to move horizontally and open the upper and lower layers of the key ring to create a gap. At this point, the pin pushing device can push the pin rod into the gap and complete the pin insertion action. The overall action is highly efficient and streamlined, and the pin rod can be accurately installed onto the key ring.

Description

Technical Field

[0001] This invention relates to the field of hardware accessory assembly technology, and in particular to a pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set. Background Technology

[0002] The lobster clasp three-piece set is a common hardware accessory used in jewelry and bags. The three pieces refer to the lobster clasp, figure-eight clasp, and key ring, all of which are installed on a connecting ring to form a complete accessory.

[0003] Traditionally, the assembly of a three-piece lobster clasp set is done manually. Because manual assembly is inefficient, time-consuming, and labor-intensive, many processing plants now use automated equipment to assemble the lobster clasps to increase efficiency. After the lobster clasps are assembled, they are usually electroplated to improve the product's appearance. Electroplating of the lobster clasps and figure-eight clasps is generally fine, but when electroplating the key rings, which are typically double-layered with the upper and lower layers tightly fitted together, the fitted areas cannot be electroplated. To ensure the overall aesthetic appeal of the electroplating, the layers need to be separated before electroplating.

[0004] Currently, the aforementioned prying action requires manual prying of the key ring, followed by inserting a needle into the gap between the upper and lower layers to maintain the gap. While tools can be used to assist with manual operation, it is still extremely laborious and inefficient over a long period of time. Currently available automated assembly equipment cannot perform this prying and shaping action on the key ring. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a pin insertion mechanism for use in an automatic assembly equipment for a three-piece lobster buckle set.

[0006] The technical solution adopted in this invention is: a pin insertion mechanism applied to an automatic assembly equipment for a three-piece lobster buckle set. The automatic assembly equipment for the three-piece lobster buckle set has a frame, a divider is provided on the frame, an indexing plate and an assembly frame are provided on the divider, a plurality of tooling mold seats are arranged at intervals around the indexing plate, and key ring slots are provided on the tooling mold seats for placing key rings. The assembly frame is driven to rise and fall by a built-in drive source. The pin insertion mechanism includes:

[0007] A base is mounted on the frame, and a needle bar pusher is provided on the base;

[0008] A cutting device is installed above the base;

[0009] A wire feeding device is disposed between the wire spool and the base, and is used to feed the wires at fixed intervals to the cutting device. The cutting device is used to cut the wires and form a needle bar that is placed on the needle bar pusher.

[0010] The steel support auxiliary device includes a connecting plate mounted on the assembly frame, a vertical rod fixed below the connecting plate, a mounting base slidably connected to the vertical rod, a reset structure fixed to the mounting base, and at least one pressing component slidably connected to the mounting base. The pressing component is located on the side of the mounting base near the needle bar push seat and includes, from bottom to top, a pressing block, a sliding rod, and a limiting block. The sliding rod is slidably connected in the mounting base. The lower end of the mounting base has a clearance groove for placing the pressing block. The limiting block is located above the mounting base. A space is provided between the mounting base and the connecting plate. The anti-detachment structure includes a sloped surface on one side of the lower end of the vertical rod, and a steel support assembly at the lower end of the mounting base. The steel support assembly includes a guide block that slides horizontally in the mounting base, and a steel support pry head located below the guide block. The guide block has a guide arc surface for engaging with the sloped surface. The steel support assembly is in a steel support state. In the steel support state, the lower end of the pressing component abuts against the key ring, the vertical rod moves downward relative to the mounting base, and the steel support assembly moves outward horizontally through the engagement of the sloped surface and the guide arc surface. The steel support pry head opens the key ring and forms a gap.

[0011] A needle pusher is mounted on the base and located on one side of the needle bar pusher seat. The needle pusher is used to push the needle bar located on the needle bar pusher seat into the gap.

[0012] The reset structure is used to cooperate in resetting the support steel assembly.

[0013] 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.

[0014] Preferably, the steel support assembly has a non-steel support state. In the non-steel support state, both the mounting base and the pressing assembly rise and are suspended above the key ring. The lower end of the pressing assembly extends below the mounting base. At least one return spring is provided between the pressing block and the upper wall of the relief groove.

[0015] Preferably, the reset structure is a spring mounting base installed on one side of the mounting body, and a reset spring is provided between the spring mounting base and the guide block.

[0016] Preferably, the anti-detachment structure is a connecting plate arranged between the connecting plate and the mounting base. In the supported state, the connecting plate is displaced upward relative to the mounting base, and at least one return spring is provided between the mounting base and the connecting plate.

[0017] Preferably, a mounting plate is provided above the base, the cutting device is fixed on the mounting plate, and the wire feeding device from the wire reel to the base includes, in sequence:

[0018] Straightener;

[0019] A segmented wire feeding assembly is mounted on the mounting plate;

[0020] The guide wire holder is mounted on the mounting plate;

[0021] The segmented wire feeding assembly is used to feed the metal wire output from the straightener in segments to the wire guide seat, and then to the cutting device through the wire guide seat.

[0022] Preferably, the segmented wire feeding assembly includes:

[0023] The bracket is fixed to the mounting plate;

[0024] The first cylinder is mounted on the bracket;

[0025] A connecting block is located at the end of the piston rod of the first cylinder;

[0026] The first slider is fixed on the connecting block, the metal wire passes through the first slider, and the first slider is provided with a barb for maintaining the unidirectional output of the metal wire;

[0027] A first slide rail is arranged above the mounting plate, and the first slider slides on the first slide rail.

[0028] Preferably, the cutting device includes:

[0029] A vertical plate is fixed to the mounting plate and located on one side of the guide wire seat;

[0030] The second slide rail is arranged vertically on the upright plate;

[0031] The second cylinder is fixed to the upper end of the vertical plate;

[0032] The second slider is fixed on the piston rod of the second cylinder, and the second slider slides on the second slide rail;

[0033] The cutter is mounted on the second slider.

[0034] Preferably, the needle bar pusher is provided with a push groove, the needle bar is placed in the push groove, and a stop block and a cutting port are respectively provided on both sides of the push groove, wherein the cutting port is located directly below the cutter, and the needle bar abuts against the stop block.

[0035] Preferably, the pusher device includes:

[0036] The base plate is fixed to the base.

[0037] The third cylinder is fixed to the base plate;

[0038] The third slide rail is arranged above the seat plate;

[0039] The third slider is located at the end of the piston rod of the third cylinder, and the third slider slides on the third slide rail;

[0040] A push plate is fixed on the third slider, and one end of the push plate is placed on the push groove.

[0041] More preferably, the inclined surface is provided on the side of the vertical rod near the support steel assembly, and the mounting base is provided with a guide channel for the guide block to slide in the horizontal direction.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] This invention utilizes a wire feeding device and a cutting device to instantly complete the forming of the needle bar, eliminating the need for pre-processing of the needle bar using additional equipment. Then, the steel support auxiliary device drives the vertical rod to rise and fall relative to the mounting base. Through the cooperation of the inclined surface on the vertical rod and the guide arc surface on the guide block, the guide block is driven to move horizontally along the mounting base, causing the steel support pry head mounted on the guide block to move horizontally until the upper and lower layers of the key ring are opened up, forming a gap. At this point, the needle pushing device can push the needle bar through the gap between the upper and lower layers, completing the needle insertion action. The overall action is efficient and simplified, and the needle bar can be accurately installed onto the key ring. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0045] Figure 1 This is a left-side view of the overall structure of the pusher plate of the pusher device in one embodiment of this application, before it is pushed into the gap.

[0046] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0047] Figure 3 This is a right-side view of the overall structure of the pusher plate of the pusher device in one embodiment of this application, before it is pushed into the gap.

[0048] Figure 4 This is a left-side view of the overall structure of the push plate of the pusher device in an embodiment of this application being pushed into the gap;

[0049] Figure 5 for Figure 4 Enlarged view of part B in the image;

[0050] Figure 6 This is a schematic diagram showing the position distribution of the steel support auxiliary device and the tooling mold base when the steel support auxiliary device is in a non-steel support state in one embodiment of this application;

[0051] Figure 7 This is a schematic diagram showing the position distribution of the steel-supporting auxiliary device and the tooling mold base when the steel-supporting device is in the steel-supporting state according to one embodiment of this application;

[0052] Figure 8 This is a bottom-view overall structural diagram of the steel support auxiliary device in one embodiment of this application;

[0053] Figure 9 This is a schematic diagram of the structure of the steel support auxiliary device in one embodiment of this application, after the mounting base is hidden and in a non-steel support state;

[0054] Figure 10 This is a schematic diagram of the structure of the steel support auxiliary device in one embodiment of this application, after the mounting base is hidden and in the state of steel support;

[0055] Figure 11 This is a lower view assembly structure diagram of the mounting base and support steel assembly in one embodiment of this application;

[0056] Figure 12 This is a right-side view of the assembly structure of the wire feeding device and the cutting device in one embodiment of this application;

[0057] Figure 13 This is a left-side view of the assembly structure of the wire feeding device and the cutting device in one embodiment of this application;

[0058] Figure 14 This is a schematic diagram of the tooling mold base in one embodiment of this application.

[0059] The attached diagram is labeled as follows: m0-tool base, t1-key ring, t2-lobster buckle, t3-figure-eight buckle, t4-connecting ring, t5-needle bar, a-metal wire, 10-base, 11-mounting plate, 12-needle bar pusher, 121-push groove, 122-stop block, 123-cutting nozzle, 20-wire feeding device, 21-straightener, 22-segmented wire feeding assembly, 221-bracket, 222-first cylinder, 223-connecting block, 224-first slider, 225-first slide rail, 23-wire guide seat, 30-cutting device, 31-vertical plate, 32-second cylinder, 33-second slide rail, 34-first... 2-slider, 35-cutter, 40-push pin device, 41-base plate, 42-third cylinder, 43-third slide rail, 44-third slider, 45-push plate, 50-support steel auxiliary device, 51-connecting plate, 52-vertical rod, 521-sloping surface, 53-mounting base, 531-guide channel, 532-gap groove, 54-support steel assembly, 541-guide block, 5411-guide arc surface, 542-support steel pry head, 55-spring mounting seat, 56-connecting plate, 57-first pressing assembly, 571-first limiting block, 58-second pressing assembly, 581-second limiting block, 59-positioning auxiliary block.

[0060] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0062] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0063] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0064] Detailed implementation plan: See below Figures 1-14 This invention relates to a pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set. The automatic assembly equipment for the three-piece lobster buckle set (t2) has a frame, on which a divider is mounted. The divider has an indexing plate and an assembly frame. Several tooling molds (m0) are spaced around the indexing plate. Each tooling mold (m0) has a slot for a key ring (t1) to be placed. The assembly frame is driven to rise and fall by a built-in drive source. The pin insertion mechanism includes:

[0065] Base 10 is mounted on the frame, and base 10 is equipped with needle bar t5 push seat;

[0066] The cutting device 30 is installed above the base 10;

[0067] The wire feeding device 20 is set between the metal wire a tray and the base 10. It is used to feed the metal wire a at fixed intervals to the cutting device 30. The cutting device 30 is used to cut the metal wire a and form a needle bar t5, which is placed on the needle bar t5 push seat.

[0068] The steel support auxiliary device 50 includes a connecting plate 51 mounted on an assembly frame, a vertical rod 52 fixed below the connecting plate 51, a mounting base 53 slidably connected to the vertical rod 52, a reset structure fixed to the mounting base 53, and at least one pressing component slidably connected to the mounting base 53. The pressing component is located on the side of the mounting base 53 near the needle bar t5 push seat and includes, from bottom to top, a pressing block, a sliding rod, and a limiting block. The sliding rod is slidably connected in the mounting base 53. The lower end of the mounting base 53 is provided with a clearance groove 532 for placing the pressing block. The limiting block is located above the mounting base 53. An anti-detachment structure is provided between the mounting base 53 and the connecting plate 51. The lower end of the vertical rod 52... A ramp 521 is provided on one side, and a steel support assembly 54 is provided at the lower end of the mounting base 53. The steel support assembly 54 includes a guide block 541 that slides horizontally in the mounting base 53, and a steel support pry head 542 provided below the guide block 541. The guide block 541 is provided with a guide arc surface 5411 for engaging with the ramp 521. The steel support assembly 54 is in a steel support state. In the steel support state, the lower end of the pressing component abuts against the key ring t1, the vertical rod 52 moves downward relative to the mounting base 53, and the steel support assembly 54 moves outward horizontally through the engagement of the ramp 521 and the guide arc surface 5411. The steel support pry head 542 opens the key ring t1 and forms a gap.

[0069] The needle pusher 40 is mounted on the base 10 and located on one side of the needle bar t5 pusher seat. The needle pusher 40 is used to push the needle bar t5 located on the needle bar t5 pusher seat into the gap.

[0070] The reset structure is used to complete the reset of the support steel assembly 54.

[0071] Please see Figure 6 As can be seen, the support steel component 54 has a non-support steel state. In the non-support steel state, the mounting base 53 and the pressing component both rise and are suspended above the key ring t1. The lower end of the pressing component extends to the bottom of the mounting base 53. At least one return spring is provided between the pressing block and the upper wall of the groove of the relief groove 532.

[0072] As a preferred embodiment of this example, please refer to Figure 8 The reset structure is a spring mounting base 55 installed on one side of the mounting base 53, and a reset spring is provided between the spring mounting base 55 and the guide block 541.

[0073] Then, please see Figure 8 The anti-detachment structure is a connecting plate 56 arranged between the connecting plate 51 and the mounting body 53. In the support state, the connecting plate 56 is displaced upward relative to the mounting body 53. At least one return spring is provided between the mounting body 53 and the connecting plate 51.

[0074] In this embodiment, a positioning auxiliary block 59 is fixedly provided on one side of the connecting plate 51. When the tooling mold base m0 is rotated to the bottom of the support steel auxiliary device 50 via the indexing plate, the positioning auxiliary block 59 is used to assist in positioning the tooling mold base m0.

[0075] Working principle of the steel support auxiliary device 50: The lobster buckle t2 automatic assembly equipment has a built-in drive source, which drives the divider to rise and fall, and drives the assembly frame installed above the divider to rise and fall synchronously. The steel support auxiliary device 50 is a whole, which is fixed to the assembly frame by the connecting plate 51, so that the steel support auxiliary device 50 and the assembly frame rise and fall synchronously. When the cutting device 30 cuts the metal wire a output from the wire feeding device 20 to a fixed length and forms a needle bar t5, which is placed on the needle bar t5 push seat, as described above, the built-in drive source drives the steel support auxiliary device 50 to fall, and the lower end of the pressing component will enter the slot of the key ring t1 and abut against the key ring t1. Note that at this time, the pressing component moves up, so that the return spring between the slot 532 and the pressing block is compressed, and the position of the key ring t1 is fixed by the pressing block. At this time, the steel support head located below the guide block 541 is flush with the middle position of the upper and lower layers of the key ring t1. And, as the connecting plate 51 continues to fall, please refer to Figure 6 and Figure 7 When the connecting plate 56 moves upward relative to the mounting base 53, the return spring between the mounting base 53 and the connecting plate 51 is compressed, and the vertical rod 52 fixed below the connecting plate 51 moves downward relative to the mounting base 53. Please refer to [link / reference]. Figures 8-11 As can be seen, when the vertical rod 52 moves downward relative to the mounting base 53, the guide arc surface 5411 on the guide block 541 and the inclined surface 521 on the vertical rod 52 are in close contact, which drives the guide block 541 to move outward in the horizontal direction. This causes the support steel head to open the upper and lower layers of the key ring t1 and form a gap. After the gap is formed, the upper layer of the key ring t1 will move slightly upward and push the pressing component upward (the pressing block always keeps pressing down and fixing the key ring t1).

[0076] Please see Figure 7 In this embodiment, the pressing assembly includes a first pressing assembly 57 and a second pressing assembly 58, wherein the second pressing assembly 58 is arranged closer to the push seat of the needle bar t5. The limiting block located on the first pressing assembly 57 is the first limiting block 571, and the limiting block located on the second pressing assembly 58 is the second limiting block 581. The limiting blocks are configured to ensure that the pressing assembly will not detach from the mounting base 53 in the non-supported state. The position of the pressing block of the second pressing assembly 58 is the final push position of the needle bar t5. This makes the center of gravity of the pressing more concentrated, allowing the needle bar t5 to be better installed in the gap formed by the key ring t1.

[0077] Please see Figure 12 and Figure 13A mounting plate 11 is provided above the base 10, and the cutting device 30 is fixed on the mounting plate 11. The wire feeding device 20 includes the following components sequentially from the metal wire a spool to the base 10:

[0078] Straightener 21;

[0079] The segmented wire feeding assembly 22 is mounted on the mounting plate 11;

[0080] Guide wire seat 23 is mounted on mounting plate 11;

[0081] The segmented wire feeding assembly 22 is used to feed the metal wire a output by the straightener 21 in segments to the wire guide seat 23, and then to the cutting device 30 through the wire guide seat 23.

[0082] Then, the segmented wire feeding assembly 22 includes:

[0083] Bracket 221 is fixed on mounting plate 11;

[0084] The first cylinder 222 is mounted on the bracket 221;

[0085] The connecting block 223 is located at the end of the piston rod of the first cylinder 222;

[0086] The first slider 224 is fixed on the connecting block 223. The metal wire a passes through the first slider 224, and the first slider 224 is provided with a barb for keeping the metal wire a out in one direction.

[0087] The first slide rail 225 is arranged above the mounting plate 11, and the first slider 224 slides on the first slide rail 225.

[0088] Here, the segmented wire feeding assembly 22 serves as the driving source for the metal wire a, pulling the metal wire a from the metal wire a spool and straightening it through the straightener 21. The segmented wire feeding assembly 22 can transport the metal wire a at fixed intervals to the wire guide seat 23, and then transport it to the cutting device 30 through the wire guide seat 23.

[0089] The working principle of the segmented wire feeding assembly 22: The first cylinder 222 operates, and through the connecting block 223, it drives the first slider 224 to slide back and forth on the first slide rail 225. When the first slider 224 slides close to the wire guide seat 23, the barb will drive the metal wire a forward. The sliding distance of the first slider 224 is the fixed length of the metal wire a. In addition, when the first slider 224 is returning to its original position, the barb will not bring back the metal wire a.

[0090] Please see Figure 13 The cutting device 30 includes:

[0091] The upright plate 31 is fixed on the mounting plate 11 and is located on one side of the guide wire seat 23;

[0092] The second slide rail 33 is arranged vertically on the upright plate 31;

[0093] The second cylinder 32 is fixed at the upper end of the vertical plate 31;

[0094] The second slider 34 is fixed on the piston rod of the second cylinder 32, and the second slider 34 slides on the second slide rail 33;

[0095] The cutter 35 is mounted on the second slider 34.

[0096] Please see Figure 4 and Figure 5 The needle bar t5 pusher seat is provided with a push groove 121, and the needle bar t5 is placed in the push groove 121. The push groove 121 is provided with a stop block 122 and a cutting port 123 on both sides respectively. The cutting port 123 is located directly below the cutter 35, and the needle bar t5 abuts against the stop block 122.

[0097] Here, when the metal wire a is conveyed to its end and touches the stop block 122, the second cylinder 32 drives the second slider 34 to descend along the second slide rail 33, and causes the cutter 35 to cut the metal wire a at the cutting nozzle 123.

[0098] Please see Figures 1-5 As can be seen, the pusher device 40 includes:

[0099] The base plate 41 is fixed to the base 10;

[0100] The third cylinder 42 is fixed on the base plate 41;

[0101] The third slide rail 43 is arranged above the seat plate 41;

[0102] The third slider 44 is located at the end of the piston rod of the third cylinder 42, and the third slider 44 is slidably connected to the third slide rail 43.

[0103] Push plate 45 is fixed on third slider 44, and one end of push plate 45 is placed on push groove 121.

[0104] The working principle of the needle pusher 40: When the needle bar t5 is placed in the push groove 121, and the steel support auxiliary device 50 opens the key ring t1 to form a gap, the third cylinder 42 works and drives the third slider 44 to slide along the third slide rail 43. Since the push plate 45 is fixed on the third slider 44, it can drive the push plate 45 to push the needle bar t5. The end of the push plate 45 will enter the gap to push the needle bar t5 to the appropriate position in the gap of the key ring t1.

[0105] When the push plate 45 of the pusher device 40 is reset, the support steel auxiliary device 50 is also driven upward by the built-in drive source to reset. At this time, the needle bar t5 is left between the upper and lower layers of the key ring t1, thereby shaping the gap.

[0106] More specifically, the inclined surface 521 is set on the side of the vertical rod 52 near the support steel assembly 54, and the mounting base 53 is provided with a guide channel 531 for the guide block 541 to slide in the horizontal direction.

[0107] The above description of the pin insertion mechanism applied to the automatic assembly equipment for lobster buckle three-piece sets is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A pin insertion mechanism for an automatic assembly equipment for a three-piece lobster clasp set, the automatic assembly equipment having a frame, a divider on the frame, an indexing plate and an assembly frame on the divider, a plurality of tooling molds spaced around the indexing plate, the tooling molds having key ring slots for placing key rings, and the assembly frame being driven to rise and fall by a built-in drive source, characterized in that... The pin insertion mechanism includes: A base is mounted on the frame, and a needle bar pusher is provided on the base; A cutting device is installed above the base; A wire feeding device is disposed between the wire spool and the base, and is used to feed the wires at fixed intervals to the cutting device. The cutting device is used to cut the wires and form a needle bar that is placed on the needle bar pusher. The steel support auxiliary device includes a connecting plate mounted on the assembly frame, a vertical rod fixed below the connecting plate, a mounting base slidably connected to the vertical rod, a reset structure fixed to the mounting base, and at least one pressing component slidably connected to the mounting base. The pressing component is located on the side of the mounting base near the needle bar push seat and includes, from bottom to top, a pressing block, a sliding rod, and a limiting block. The sliding rod is slidably connected in the mounting base. The lower end of the mounting base has a clearance groove for placing the pressing block. The limiting block is located above the mounting base. A space is provided between the mounting base and the connecting plate. The anti-detachment structure includes a sloped surface on one side of the lower end of the vertical rod, and a steel support assembly at the lower end of the mounting base. The steel support assembly includes a guide block that slides horizontally in the mounting base, and a steel support pry head located below the guide block. The guide block has a guide arc surface for engaging with the sloped surface. The steel support assembly is in a steel support state. In the steel support state, the lower end of the pressing component abuts against the key ring, the vertical rod moves downward relative to the mounting base, and the steel support assembly moves outward horizontally through the engagement of the sloped surface and the guide arc surface. The steel support pry head opens the key ring and forms a gap. A needle pusher is mounted on the base and located on one side of the needle bar pusher seat. The needle pusher is used to push the needle bar located on the needle bar pusher seat into the gap. The reset structure is used to cooperate in resetting the support steel assembly.

2. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 1, characterized in that, The steel support assembly has a non-steel support state. In the non-steel support state, both the mounting base and the pressing assembly rise and are suspended above the key ring. The lower end of the pressing assembly extends below the mounting base. At least one return spring is provided between the pressing block and the upper wall of the recessed groove.

3. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 1, characterized in that, The reset structure is a spring mounting base installed on one side of the mounting body, and a reset spring is provided between the spring mounting base and the guide block.

4. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 3, characterized in that, The anti-detachment structure is a connecting plate arranged between the connecting plate and the mounting base. In the supported state, the connecting plate is displaced upward relative to the mounting base. At least one return spring is provided between the mounting base and the connecting plate.

5. A pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to any one of claims 1-4, characterized in that, A mounting plate is provided above the base, the cutting device is fixed on the mounting plate, and the wire feeding device from the wire reel to the base includes: Straightener; A segmented wire feeding assembly is mounted on the mounting plate; The guide wire holder is mounted on the mounting plate; The segmented wire feeding assembly is used to feed the metal wire output from the straightener in segments to the wire guide seat, and then to the cutting device through the wire guide seat.

6. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 5, characterized in that, The segmented wire feeding assembly includes: The bracket is fixed to the mounting plate; The first cylinder is mounted on the bracket; A connecting block is located at the end of the piston rod of the first cylinder; The first slider is fixed on the connecting block, the metal wire passes through the first slider, and the first slider is provided with a barb for maintaining the unidirectional output of the metal wire; A first slide rail is arranged above the mounting plate, and the first slider slides on the first slide rail.

7. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 6, characterized in that, The cutting device includes: A vertical plate is fixed to the mounting plate and located on one side of the guide wire seat; The second slide rail is arranged vertically on the upright plate; The second cylinder is fixed to the upper end of the vertical plate; The second slider is fixed on the piston rod of the second cylinder, and the second slider slides on the second slide rail; The cutter is mounted on the second slider.

8. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 7, characterized in that, The needle bar pusher is provided with a push groove, the needle bar is placed in the push groove, and a stop block and a cutting port are respectively provided on both sides of the push groove. The cutting port is located directly below the cutter, and the needle bar abuts against the stop block.

9. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 8, characterized in that, The pusher device includes: Seat plate, fixed to the base; The third cylinder is fixed to the base plate; The third slide rail is arranged above the seat plate; The third slider is located at the end of the piston rod of the third cylinder, and the third slider slides on the third slide rail; A push plate is fixed on the third slider, and one end of the push plate is placed on the push groove.

10. The pin insertion mechanism for an automatic assembly equipment for a three-piece lobster buckle set according to claim 1, characterized in that, The inclined surface is provided on the side of the vertical rod near the support steel assembly, and the mounting base is provided with a guide channel for the guide block to slide in the horizontal direction.

Images