Full-automatic multi-parallel-wire rubber shell penetrating machine

Abstract

The invention relates to a full-automatic multi-doubling rubber shell penetrating machine, which relates to the technical field of automatic equipment and comprises a bottom plate, a translation structure, a wire expanding structure, a wire doubling structure, a terminal crimping structure, a shell inserting structure, a detection structure, a wire pulling structure, a wire cutting structure and a plurality of wire rods. According to the device, the first air cylinder and the check block are arranged to extrude the multiple lantern rings to enable the lantern rings to be kept at the initial positions, when the wire needs to be subjected to end crimping operation, the first air cylinder is controlled to be started, the output end extends out, the check block moves outwards, extrusion on the lantern rings is canceled, the multiple springs recover elastic deformation, and then the multiple lantern rings move outwards; by arranging the wire changing and expanding structure, the distance between the wire rods can be adjusted during terminal crimping operation, the situation that multiple wire rods are squeezed into a crimping area due to the fact that the distance between the wire rods is small during terminal crimping is avoided, and the effects of increasing the yield during terminal crimping of the wire rods and reducing loss are achieved through the arrangement.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to a fully automatic multi-parallel line glue-threading machine. Background Technology

[0002] With continuous economic development and advancements in science and technology, the automation industry has received strong technological support, leading to its vigorous development. In the cable market, wire harnesses with protective shells are ubiquitous, with a wide variety and large production volume. This has created a huge market for wire harness production while also bringing significant production pressure. Currently, the electronics manufacturing industry has an increasing demand for the assembly of wires and protective shells, especially for multi-parallel wire assembly. Traditional manual assembly methods are inefficient and prone to errors. With the development of automation technology, some companies have begun to introduce semi-automatic equipment. In recent years, fully automated assembly equipment has gradually become the industry trend. However, in the specific area of ​​wire clamping in multi-parallel wire assembly with protective shells, most methods simply clamp the wires, and the technological maturity still needs improvement. In response to the aforementioned technologies, a new fully automatic multi-parallel line glue-insertion machine is proposed. Summary of the Invention

[0003] The purpose of this application is to provide a fully automatic multi-parallel wire bonding machine to solve the problem that traditional equipment only tightly arranges and clamps the wires. The tight arrangement of the wires results in small spacing between them, which makes it easy for multiple wires to squeeze into the crimping area during the end-cutting operation.

[0004] The fully automatic multi-parallel glue-insertion machine provided in this application adopts the following technical solution: A fully automatic multi-parallel wire inserting machine includes a base plate, a translation structure, a wire expansion structure, a parallel wire structure, a terminal cutting structure, a shell insertion structure, a detection structure, a wire pulling structure, a wire cutting structure, and multiple wires. The translation structure includes a first linear module fixedly mounted on the upper end of the base plate. The upper end of the first linear module is fixedly mounted on a horizontal plate via an internally threaded slider. The upper end of the horizontal plate is fixedly mounted on a second linear module. The expansion structure includes a mounting base fixedly installed on the upper end of a slider threaded inside the second linear module. A support plate is fixedly installed on one side of the upper end of the mounting base, and a fixing column is fixedly installed on one side of the support plate. Multiple collars are slidably sleeved on the outer wall of the fixing column. One of the collars is fixedly inserted through the outer wall of the fixing column near the support plate. A wire loop is fixedly installed on the upper end of each of the multiple collars through a connecting column. Each pair of the multiple collars has a first limiting post and a second limiting post fixedly installed at one end of each pair of corresponding ends. The outer walls of each pair of the first limiting post and the second limiting post are fitted with springs. A first cylinder is fixedly installed at the upper end of the mounting base. A stop block is fixedly installed at the output end of the first cylinder. By adopting the above technical solution, and by setting up an expansion structure with multiple collars and corresponding wire loops, the wires to be operated are passed through the corresponding wire loops respectively. This setting enables initial separation of the wires. The first cylinder and the stop block compress the multiple collars to keep them in their initial positions. When the wires need to be terminated, the first cylinder is activated, the output end extends, the stop block moves outward, the compression of the collars is released, the multiple springs recover their elastic deformation, and the multiple collars move outward, thereby changing the distance between the wires within the wire loops. By setting up this expansion structure, the distance between the wires can be adjusted during termination operations, preventing multiple wires from being squeezed into the crimping area due to close proximity. This setting increases the yield of wire terminations and reduces losses.

[0005] Preferably, the parallel structure includes a mounting plate and a second cylinder fixedly mounted on the upper end of the mounting base, and a U-shaped groove is fixedly provided on the upper end of the mounting plate; By adopting the above technical solution, the mounting plate provides the installation foundation for the wire merging process. By setting a U-shaped groove as a bearing channel for wire merging, the position of the wire is limited. At the same time, the height of the U-shaped groove corresponds to the diameter of the wire, so as to avoid the wires from overlapping or misaligning during merging.

[0006] Preferably, an L-shaped plate is fixedly provided at the output end of the second cylinder, and one end of the L-shaped plate extends into the U-shaped groove; By adopting the above technical solution, the second cylinder is the power source. The second cylinder drives the L-shaped plate to move in the U-shaped groove. After the wire expansion is completed and the end is cut, the multiple wires in the U-shaped groove are squeezed and brought together to facilitate subsequent operations.

[0007] Preferably, a bearing plate is fixedly provided on one side of the U-shaped groove, a third cylinder is fixedly provided on the upper end of the U-shaped groove, and a pressure plate is fixedly provided on the output end of the third cylinder; By adopting the above technical solution, a pressure structure is set up, a bearing plate is used to support the wire, and the third cylinder is activated to move the telescopic end down, driving the pressure plate to press down and fix the wire after it is joined together, preventing the wire from loosening after joining and ensuring the progress of subsequent processes.

[0008] Preferably, the upper end of the stop block passes through the fixed post and is slidably provided with the outer wall of the fixed post; By adopting the above technical solution, the relationship between the stop block and the fixed column is clarified, ensuring that the stop block can slide stably along the axis of the fixed column, thus guaranteeing the tightening and loosening of the collar.

[0009] Preferably, the plurality of said wires pass through the wire loop and extend from one end of the U-shaped groove; By adopting the above technical solution, the path of the wire is clearly defined. The wire undergoes expansion, paralleling and compression processes in sequence, laying the groundwork for subsequent processes such as terminal cutting and shell insertion.

[0010] Preferably, the translation structure includes a limiting frame fixedly mounted on the upper end of the base plate; By adopting the above technical solution, the first linear module in the translation structure is limited in the lateral direction and also provides support, thus ensuring the stability of the second linear module.

[0011] Preferably, a bait block is fixedly provided on one side of the bottom end of the horizontal plate, and the bait block is slidably sleeved on the outer wall of the slide rod provided inside the limiting frame; By adopting the above technical solution, the cooperation between the bait block and the sliding rod in the limiting rod enhances the guidance of the first linear module during movement, ensuring the stable operation of the translation structure. Beneficial effects

[0012] In summary, this application includes at least one of the following beneficial technical effects: This invention provides a fully automatic multi-parallel wire threading machine. By setting up a wire expansion structure and multiple collars and corresponding wire rings, the wires to be operated are passed through the corresponding wire rings respectively, achieving initial separation of the wires. A first cylinder and a stop block compress the multiple collars, holding them in their initial positions. When wire termination is required, the first cylinder is activated, the output end extends, the stop block moves outward, releasing the compression of the collars, allowing multiple springs to regain their elastic deformation, and thus the multiple collars move outward, changing the distance between the wires within the wire rings. This expanded wire structure allows for adjustment of the distance between wires during termination, preventing multiple wires from being squeezed into the crimping area due to close proximity. This design increases the yield rate of wire termination and reduces losses.

[0013] This invention provides a fully automatic multi-wire paralleling and bonding machine. Through the setting of paralleling and pressing structures, and by setting a second cylinder, U-shaped groove and L-shaped plate, while the wire expansion structure is expanding and resetting, the second cylinder drives the L-shaped plate to move in the U-shaped groove to quickly parallel multiple wires, ensuring that the wires are neatly arranged. At the same time, after paralleling, the paralleled wires are pressed by a third cylinder, pressure plate and bearing plate. Through the above settings, the stability of subsequent wire processing steps can be guaranteed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the expanded line structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the pressing and paralleling structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0015] in, 1. Base plate; 2. Translation structure; 201. First linear module; 202. Horizontal plate; 203. Second linear module; 204. Bait block; 205. Limiting frame; 3. Expansion structure; 301. Mounting base; 302. Support plate; 303. Fixing post; 304. Collar; 305. Wire loop; 306. First limiting post; 307. Second limiting post; 308. Spring; 309. First cylinder; 310. Stop block; 4. Parallel structure; 401. Mounting plate; 402. U-shaped groove; 403. Second cylinder; 404. L-shaped plate; 405. Bearing plate; 406. Third cylinder; 407. Pressure plate; 5. End-cutting structure; 6. Shell insertion structure; 7. Detection structure; 8. Pull-out structure; 9. Cut-out structure; 10. Wire. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0017] Example 1: A fully automatic multi-parallel wire bonding machine, referring to... Figure 1 , Figure 2 and Figure 3It includes a base plate 1, a translation structure 2, a line expansion structure 3, a parallel line structure 4, a terminal structure 5, a shell insertion structure 6, a detection structure 7, a wire pulling structure 8, a wire cutting structure 9, and multiple wires 10. The base plate 1 serves as the basic load-bearing component of the equipment. The translation structure 2, the end-cutting structure 5, the shell insertion structure 6, the inspection structure 7, the wire pulling structure 8, and the wire cutting structure 9 provide an installation reference. The end-cutting structure 5 performs end-cutting processing on the expanded wire 10 and completes the crimping treatment of the wire 10 ends to prepare for the subsequent shell insertion process. The shell insertion structure 6 inserts the end-cut, wire-jointed, and crimped wire 10 into the shell, completing the core assembly of the shell insertion. The inspection structure 7 inspects the end-cutting quality and shell insertion accuracy to screen out unqualified products. The wire pulling structure 8 pulls the wire 10 after the above processes are completed, increasing its length, and then works with the wire cutting structure 9 to cut the processed wire 10. The process is then repeated. The translation structure 2 includes a first linear module 201 fixedly installed on the upper end of the base plate 1. The first linear module 201 moves laterally by driving the horizontal plate 202 through a slider, adjusting the lateral position of the subsequent lateral movement. The first linear module 201 is connected by internal screws. A horizontal plate 202 is fixedly installed on the upper end of the slider connected by the groove. The horizontal plate 202 serves as the mounting carrier for the second linear module 203, receiving and transmitting the power of the first linear module 201. The second linear module 203 is fixedly installed on the upper end of the horizontal plate 202. The second linear module 203 moves longitudinally by driving the mounting base 301 and the expansion structure 3 and parallel structure 4 above it through the slider. Combined with lateral movement, it completes multi-dimensional movement. The translation structure 2 includes a limiting frame 205 fixedly installed on the upper end of the base plate 1. It limits the lateral movement of the first linear module 201 in the translation structure 2 and also provides support to ensure the stability of the second linear module 203. A bait block 204 is fixedly installed on one side of the bottom end of the horizontal plate 202. The bait block 204 slides on the outer wall of the slide rod set inside the limiting frame 205. Through the cooperation between the bait block 204 and the slide rod in the limiting frame 205, the guidance of the first linear module 201 during movement is enhanced, ensuring the stable operation of the translation structure 2.

[0018] The expansion structure 3 includes a mounting base 301 fixedly disposed on the upper end of a slider threaded inside the second linear module 203. The mounting base 301 provides a mounting foundation for the support plate 302 and the first cylinder 309 of the expansion structure 3. A support plate 302 is fixedly disposed on one side of the upper end of the mounting base 301, and a fixing post 303 is fixedly disposed on one side of the support plate 302. The fixing post 303 is a sliding track for the collar 304, limiting the movement direction of the collar 304 and ensuring the linear stability of the expansion behavior. Multiple collars 304 are slidably sleeved on the outer wall of the fixing post 303, one of which is a collar 304. The fixed ring 304, which is close to the support plate 302 and is fixed to the outer wall of the fixed column 303, drives the wire ring 305 to move synchronously through sliding. It is the direct execution component for realizing the expansion and repositioning of the wire 10. The upper ends of multiple rings 304 are fixedly provided with wire rings 305 through connecting columns. The wire rings 305 provide the environment for the wire 10 to pass through. Through linkage with the rings 304, the separation and repositioning of the wire 10 are realized. The relationship between the stop block 310 and the fixed column 303 is clearly defined to ensure that the stop block 310 can slide stably along the axis of the fixed column 303, and to ensure the pressing and releasing of the rings 304.

[0019] Multiple collars 304 are fixedly provided with first limiting posts 306 and second limiting posts 307 at their corresponding ends. The first limiting posts 306 and second limiting posts 307 provide mounting points for springs 308 and prevent springs 308 from shifting or falling off. Springs 308 are fitted onto the outer walls of the corresponding ends of the multiple first limiting posts 306 and second limiting posts 307. Springs 308 provide restoring force through elastic deformation. When the stop block 310 releases its pressure on the collars 304, the springs restore their elastic deformation to achieve wire expansion. When compressed, the resetting mounting base 301 is fixedly equipped with a first cylinder 309. The first cylinder 309 serves as the power source for the expansion structure 3, driving the stop block 310 to extend and retract, controlling the switching between expansion and resetting states. The output end of the first cylinder 309 is fixedly equipped with the stop block 310. The upper end of the stop block 310 passes through the fixed post 303 and slides on the outer wall of the fixed post 303. Under the drive of the first cylinder 309, the stop block 310 compresses or releases the collar 304. The position of the collar 304 is controlled by mechanical limit, thereby controlling the expansion state.

[0020] The technical effect of the above-mentioned device is that by setting the wire expansion structure 3, and by setting multiple collars 304 and corresponding wire rings 305, the wires 10 to be operated are passed through the corresponding wire rings 305 respectively. This setting enables the wires 10 to be initially separated. The set first cylinder 309 and the stop block 310 compress the multiple collars 304 to keep them in the initial position. When it is necessary to perform a wire termination operation, the first cylinder 309 is activated, the output end extends, the stop block 310 moves outward, the compression of the collars 304 is released, the multiple springs 308 recover their elastic deformation, and the multiple collars 304 move outward, thereby changing the distance between the wires 10 in the wire rings 305. By setting this wire expansion structure 3, the distance between the wires 10 can be adjusted during the termination operation, avoiding multiple wires 10 from being squeezed into the crimping area due to close proximity during termination. This setting increases the yield of wire termination and reduces losses.

[0021] Example 2: A fully automatic multi-parallel wire bonding machine, referring to... Figure 1 , Figure 4 and Figure 5 The paralleling structure 4 includes a mounting plate 401 fixedly mounted on the upper end of the mounting base 301 and a second cylinder 403. The mounting plate 401 provides a mounting base for the U-shaped groove 402. The U-shaped groove 402 is fixedly mounted on the upper end of the mounting plate 401. The U-shaped groove 402 serves as a carrying channel for the wire 10, defining the arrangement path of the wire 10. The mounting plate 401 provides a mounting base for the paralleling process. By setting the U-shaped groove 402 as a carrying channel for the merging of the wire 10, the position of the wire 10 is defined. At the same time, the height of the U-shaped groove 402 corresponds to the diameter of the wire 10, avoiding overlap or misalignment of the wire 10 during paralleling. An L-shaped plate 404 is fixedly mounted on the output end of the second cylinder 403. One end of the L-shaped plate 404 extends into the U-shaped groove 402. The second cylinder 403 is a power source, driving the L-shaped plate 404. 04. Moving within the U-shaped groove 402, after the wire expansion and terminalizing are completed, the multiple wires 10 within the U-shaped groove 402 are squeezed and joined together to facilitate subsequent operations. A bearing plate 405 is fixedly installed on one side of the U-shaped groove 402, and a third cylinder 406 is fixedly installed at the upper end of the U-shaped groove 402. A pressure plate 407 is fixedly installed at the output end of the third cylinder 406 to form a wire pressing structure. The bearing plate 405 assists in supporting the wires 10. When the third cylinder 406 is activated, the telescopic end moves down, driving the pressure plate 407 to press down and press the joined wires 10 tightly to prevent them from loosening after joining, ensuring the progress of subsequent processes. Multiple wires 10 pass through the wire ring 305 and extend from one end of the U-shaped groove 402, clarifying the path of the wires 10. The wires 10 undergo wire expansion, joining, and pressing processes in sequence, paving the way for subsequent terminalizing and shell insertion processes.

[0022] The technical solution of the above-mentioned device is as follows: by setting up a wire merging and pressing structure, and by setting up a second cylinder 403, a U-shaped groove 402 and an L-shaped plate 404, while the wire merging structure 3 is completed and reset, the second cylinder 403 drives the L-shaped plate 404 to move in the U-shaped groove 402 to quickly merge multiple wires 10, ensuring that the wires 10 are arranged neatly. At the same time, after the wire merging is completed, the merged wires 10 are pressed by a third cylinder 406, a pressure plate 407 and a bearing plate 405. Through the above settings, the stability of the subsequent processing of the wires 10 can be guaranteed.

[0023] The implementation principle of this application embodiment is as follows: Multiple wires 10 are passed through the corresponding wire loops 305 in the expansion structure 3 and extended into the U-shaped groove 402 of the parallel structure 4 and out, completing the threading of the wires 10. The translation structure 2 is activated, and the first linear module 201 drives the horizontal plate 202 to move laterally through the slider. At the same time, the bait block 204 at the bottom of the horizontal plate 202 slides along the slide rod in the limiting frame 205. The second linear module 203 drives the mounting base 301 and the expansion structure 3 and parallel structure 4 above it to move longitudinally, finally delivering the wires 10 to the position required for the end-cutting process. In the initial state, the output end of the first cylinder 309 retracts, and the stop block 310 squeezes multiple collars 304, causing the collars 304 to move closer together along the fixed post 303. The spring 308 is in a compressed state, and the wires 10 remain in a closed state. When termination is required, the first cylinder 309 and the second cylinder 403 are started simultaneously, causing the L-shaped plate 404 to move outward, ensuring that the wires 10 inside the U-shaped groove 402 have enough space to move synchronously. The output end extends, causing the stop block 310 to slide along the fixed post 303, thus canceling the compression of the collars 304. The spring 308 recovers its elastic deformation, pushing the multiple collars 304 to separate outward along the fixed post 303. Then, through the wire ring 305, multiple wires 10 move synchronously, thereby increasing the spacing between the wires 10 and preventing multiple wires 10 from squeezing into the crimping area during termination, ensuring the termination yield. By setting the wire expansion structure 3, and by setting multiple collars 304 and corresponding wire rings 305, the wires 10 to be operated are passed through the corresponding wire rings 305 respectively. This setting enables the wires 10 to be initially separated. The multiple collars 304 are squeezed by the first cylinder 309 and the stop block 310 to keep them in the initial position. When it is necessary to perform the wire ending operation, the first cylinder 309 is activated, the output end extends, the stop block 310 moves outward, the squeezing of the collars 304 is canceled, the multiple springs 308 recover their elastic deformation, and the multiple collars 304 move outward, thereby changing the distance of the wires 10 in the wire rings 305. By setting this wire expansion structure 3, the distance between the wires 10 can be adjusted during the ending operation, avoiding multiple wires 10 from being squeezed into the crimping area due to close proximity. This setting increases the yield of wires 10 during ending and reduces losses. After the end-cutting is completed, the output end of the first cylinder 309 retracts, the stop block 310 squeezes the collar 304 again, causing the collar 304 to come together, the spring 308 to compress, the wire expansion structure 3 to reset, and the wire 10 to return to its initial arrangement state. Then the wire paralleling structure 4 is activated, and the second cylinder 403 drives the L-shaped plate 404 to move into the U-shaped groove 402. The L-shaped plate 404 squeezes the multiple wires 10 in the U-shaped groove 402, so that the wires 10 are neatly aligned along the carrying channel of the U-shaped groove 402. After the wires are combined, the third cylinder 406 is started, and the output end moves down to drive the pressure plate 407 to press down towards the bearing plate 405, pressing and fixing the combined wires 10 to prevent the wires 10 from becoming loose or shifting during subsequent processes such as translation and shell insertion. By setting up a wire merging and clamping structure, and by setting up a second cylinder 403, a U-shaped groove 402 and an L-shaped plate 404, while the wire merging structure 3 is completed and reset, the second cylinder 403 drives the L-shaped plate 404 to move in the U-shaped groove 402 to quickly merge multiple wires 10, ensuring that the wires 10 are neatly arranged. At the same time, after the wire merging is completed, the third cylinder 406, a pressure plate 407 and a bearing plate 405 and other structures are used to clamp the merged wires 10. Through the above settings, the stability of the subsequent processing steps of the wires 10 can be guaranteed. After being pressed and fixed, the wire 10 is driven by the translation structure 2 and flows sequentially to the end-cutting structure 5, the shell insertion structure 6 and the detection structure 7. Finally, the wire 10 is pulled by the wire-pulling structure 8 and cut by the wire-cutting structure 9, completing the entire process of inserting the shell.

[0024] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fully automatic multi-parallel wire inserting machine, comprising a base plate (1), a translation structure (2), a wire expansion structure (3), a wire paralleling structure (4), a terminal cutting structure (5), a shell insertion structure (6), a detection structure (7), a wire pulling structure (8), a wire cutting structure (9), and multiple wires (10), characterized in that: The translation structure (2) includes a first linear module (201) fixedly installed on the upper end of the base plate (1). The first linear module (201) has a horizontal plate (202) fixedly installed on the upper end of the slider connected by an internal thread. The upper end of the horizontal plate (202) has a second linear module (203) fixedly installed. The expansion structure (3) includes a mounting base (301) fixedly installed on the upper end of a slider threaded inside the second linear module (203). A support plate (302) is fixedly installed on one side of the upper end of the mounting base (301). A fixing post (303) is fixedly installed on one side of the support plate (302). Multiple collars (304) are slidably sleeved on the outer wall of the fixing post (303). One of the collars (304) is fixedly inserted into the outer wall of the fixing post (303) near the support plate (302). A wire ring (305) is fixedly installed on the upper end of each of the multiple collars (304) through a connecting post. Each pair of collars (304) has a first limiting post (306) and a second limiting post (307) fixedly installed at one end of each pair of corresponding ends. Each pair of first limiting posts (306) and second limiting posts (307) has a spring (308) sleeved on the outer wall of one end of each pair of corresponding ends. The upper end of the mounting base (301) is fixedly equipped with a first cylinder (309), and the output end of the first cylinder (309) is fixedly equipped with a stop block (310).

2. The fully automatic multi-parallel glue-threading machine according to claim 1, characterized in that: The parallel structure (4) includes a mounting plate (401) fixedly mounted on the upper end of the mounting base (301) and a second cylinder (403), and a U-shaped groove (402) is fixedly mounted on the upper end of the mounting plate (401).

3. The fully automatic multi-parallel wire bonding machine according to claim 2, characterized in that: The output end of the second cylinder (403) is fixedly provided with an L-shaped plate (404), one end of which extends into the U-shaped groove (402).

4. The fully automatic multi-parallel wire bonding machine according to claim 1, characterized in that: A bearing plate (405) is fixedly installed on one side of the U-shaped groove (402), a third cylinder (406) is fixedly installed at the upper end of the U-shaped groove (402), and a pressure plate (407) is fixedly installed at the output end of the third cylinder (406).

5. The fully automatic multi-parallel wire bonding machine according to claim 1, characterized in that: The upper end of the stop (310) passes through the fixed column (303) and is slidably provided with the outer wall of the fixed column (303).

6. The fully automatic multi-parallel wire bonding machine according to claim 1, characterized in that: Multiple wires (10) pass through the wire loop (305) and extend from one end of the U-shaped groove (402).

7. The fully automatic multi-parallel wire bonding machine according to claim 1, characterized in that: The translation structure (2) includes a limiting frame (205) fixedly installed on the upper end of the base plate (1).

8. The fully automatic multi-parallel wire bonding machine according to claim 7, characterized in that: A bait block (204) is fixedly installed on one side of the bottom end of the horizontal plate (202), and the bait block (204) is slidably sleeved on the outer wall of the sliding rod provided inside the limiting frame (205).

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