Continuous labeling equipment for plate processing

Abstract

The utility model relates to the technical field of plate processing, in particular to continuous labeling equipment for plate processing, which comprises a base, the front side of the left side of the base is fixedly connected with the back side of a rotating mechanism, the rotating mechanism is driven by a motor mounting seat and a rotating motor, and the rotating motor drives a rotating rod to rotate through a coupler. A rotating rod rotates to drive a transmission belt to rotate through a transmission roller, the transmission belt rotates to drive a plate body to do linear motion, the linear motion of the plate body can drive a labeling rotating rod to move upwards through a labeling roll body, and the labeling rotating rod moves upwards to drive a springback rotating shaft to move upwards in a movable groove. The springback rotating shaft moves upwards, and continuous pressure can be applied to the springback rotating shaft through the elastic effect of the springback spring and the limiting effect of the springback connecting rod, so that downward pressure is applied to the labeling rotating rod while the springback rotating shaft vertically moves in the movable groove, and finally, labeling operation can be performed on plates with different thicknesses; and the application range of labeling is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate processing technical field, concretely is plate processing with continuous labeling equipment. BACKGROUND

[0002] Plate processing refers to through a series of process technology, the early plate processing technology is simple, mainly relies on manual operation and simple mechanical tool, and the production efficiency is low, along with the rise of industrial revolution, advanced machinery and equipment are emerging, plate processing technology gradually realizes mechanization, automation and intelligent, in the modern stage, high-precision, high-efficiency numerical control machine tool and processing center are widely used in production, the process of raw material processing into the plate with specific shape, size and performance, the plate needs to be labeled in the processing process for distinguishing batch.

[0003] At present, most plate processing continuous labeling equipment on the market is that the plate is labeled by the pressure of the labeling roll when passing through the labeling device, and when labeling different thickness plates, the height of the labeling roll needs to be adjusted, which wastes a lot of working time. UTILITY MODEL CONTENT

[0004] The utility model discloses plate processing continuous labeling equipment aims at providing plate processing continuous labeling equipment to solve the problem of adjusting the height of the labeling roll when labeling different thickness plates in the background art, which wastes a lot of working time. In order to achieve the above purpose, the utility model provides the following technical scheme: plate processing continuous labeling equipment, including base, the front surface of the left side of base and the back surface of rotating mechanism fixed connection, the rotating mechanism is composed of motor mounting seat, rotating motor and rotating rod, the outer wall of rotating mechanism and the inner wall of transmission mechanism movable clamping, the transmission mechanism includes transmission roller, transmission belt, three plate bodies and two sets of limiting blocks, the inner wall of transmission mechanism and the outer wall of fixing mechanism movable clamping,

[0005] The bottom of fixing mechanism and the top of base right side fixed connection, the top of transmission mechanism and the bottom of labeling mechanism movable abut, the labeling mechanism includes labeling rotating rod, labeling roll body, labeling material receiving rod, labeling material discharging roller, labeling material discharging rod, two labeling fixed blocks, two movable grooves and labeling motor, the outer wall of labeling mechanism is respectively connected with the inner wall of two rebound mechanisms, two rebound mechanisms are composed of rebound shaft, rebound connecting rod, rebound spring and rebound limiting plate.

[0006] Preferably, the base comprises four columns, an operating table and two rotating fixed blocks, the top of the four columns is fixedly connected with the bottom of the operating table, and the four columns are distributed in a rectangular array about the center of the bottom of the operating table, the top of the operating table near the left side is fixedly connected with the bottom of the two rotating fixed blocks respectively, and the two rotating fixed blocks are symmetrically distributed about the center of the left side of the operating table, and the front of the two rotating fixed blocks is respectively provided with a rotating through hole.

[0007] Preferably, the back of the motor mounting seat is fixedly connected with the front of the left side of the operating table, and the top of the motor mounting seat is movably connected with the bottom of the rotating motor, one end of the rotating motor is fixedly connected with one end of the rotating rod through a shaft coupling, and the outer walls of the two ends of the rotating rod are movably connected with the inner walls of the two rotating through holes.

[0008] Preferably, the inner wall of the transmission roller is movably connected with the outer wall of the middle part of the rotating rod, and the outer wall of the transmission roller is drivingly connected with the inner wall of the left side of the transmission belt, the top of the middle part of the transmission belt is movably abutted with the bottom of the three plate bodies respectively, and the top of the front and back of the transmission belt near the three plate bodies is movably connected with the bottom of the two groups of limiting blocks respectively.

[0009] Preferably, the fixing mechanism comprises a fixed roller, a fixed rotating rod and two fixed mounting blocks, the outer wall of the middle part of the fixed roller is drivingly connected with the inner wall of the right side of the transmission belt, the inner wall of the fixed roller is movably connected with the outer wall of the middle part of the fixed rotating rod, the front of the two fixed mounting blocks is respectively provided with a fixed through hole, the inner walls of the two fixed through holes are respectively movably connected with the outer walls of the two ends of the fixed rotating rod, the bottom of the two fixed mounting blocks is fixedly connected with the top of the right side of the operating table, and the two fixed mounting blocks are symmetrically distributed about the middle part of the right side of the operating table.

[0010] Preferably, the outer wall of the middle part of the labeling transfer rod is in transmission connection with the top of the labeling roll body, the bottom of the labeling roll body is in movable abutment with the top of one of the plate bodies, the inner wall of the right side of the labeling roll body is in movable clamping connection with the outer wall of the middle part of the labeling material receiving rod, the top of the left side of the labeling roll body is in transmission connection with the outer wall of the labeling material discharging roller, the inner wall of the labeling material discharging roller is in movable clamping connection with the outer wall of the middle part of the labeling material discharging rod, the front face of the labeling fixing block close to the middle part is provided with a movable slot, the outer wall of the two ends of the labeling material discharging rod is movably sleeved with the inner wall of the two movable slots, the front face of the labeling fixing block close to the top is provided with two labeling through holes, the inner wall of the two labeling through holes is rotatably connected with the outer wall of the two ends of the labeling material receiving rod, the inner wall of the other two labeling through holes is rotatably connected with the outer wall of the two ends of the labeling material discharging rod, one end of the labeling material receiving rod is fixedly connected with one end of the labeling motor through a shaft coupling, the back face of the labeling motor is fixedly connected with the front face of one of the labeling fixing blocks, the bottom of the two labeling fixing blocks is fixedly connected with the top of the right side of the operation table, the two labeling fixing blocks are symmetrically distributed about the center of the right side of the operation table, and the top of the middle part of the two labeling fixing blocks is provided with a rebound through hole.

[0011] Preferably, the inner wall of the two rebound shafts is rotatably connected with the outer wall of the two ends of the labeling transfer rod, and the outer wall of the rebound shaft is in sliding connection with the inner wall of the movable slot, the top of the middle part of the rebound shaft is fixedly connected with the bottom end of the rebound connecting rod, the outer wall of the bottom of the rebound connecting rod is movably sleeved with the inner wall of the rebound spring, the top end of the rebound connecting rod is movably clamped with the bottom of the rebound limiting plate, and the outer wall of the rebound connecting rod is movably sleeved with the inner wall of the rebound through hole.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] In the utility model, the rotating motor drives the rotating rod to rotate through the shaft coupling, the rotating rod drives the transmission belt to rotate through the transmission roller, the transmission belt drives the plate body to move linearly, the plate body moves linearly to drive the labeling roll body to move upward, the labeling transfer rod moves upward to drive the rebound shaft to move upward in the movable slot, the rebound shaft moves upward to exert a continuous pressure on the rebound shaft through the elastic action of the rebound spring and the limiting action of the rebound connecting rod, thereby maintaining the vertical movement of the rebound shaft in the movable slot and exerting a downward pressure on the labeling transfer rod, and finally the labeling operation on the plate bodies with different thicknesses can be realized, and the labeling application range is improved.

[0014] The utility model discloses, rotating rod rotates through transmission roller and drives transmission belt to rotate, and transmission belt rotation drives plate material body linear motion, and linear motion's plate material body drives label roll body linear motion, and label roll body linear motion can drive label discharge roller to rotate around label discharge rod, and label discharge roller rotation can continuously discharge, and can continuously label plate material body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the sectional view of the utility model;

[0016] Figure 2 It is the whole structure schematic view of the utility model;

[0017] Figure 3 It is the explosion drawing of the utility model;

[0018] Figure 4 It is the explosion drawing of transmission mechanism and fixed mechanism in the utility model;

[0019] Figure 5 It is the explosion drawing of label mechanism in the utility model;

[0020] Figure 6 It is the explosion drawing of rebound mechanism in the utility model.

[0021] In the drawing: 1, base;101, stand;102, operation mesa;103, rotation fixed block;2, rotating mechanism;201, motor mounting seat;202, rotation motor;203, rotating rod;3, transmission mechanism;301, transmission roller;302, transmission belt;303, plate material body;304, limit block;4, fixed mechanism;401, fixed roller;402, fixed rotation rod;403, fixed mounting block;5, label mechanism;501, label rotation rod;502, label roll body;503, label discharge rod;504, label discharge roller;505, label discharge rod;506, label fixed block;507, movable slot;508, label motor;6, rebound mechanism;601, rebound rotation shaft;602, rebound connecting rod;603, rebound spring;604, rebound limit plate. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work fall within the scope of the utility model.

[0023] Please refer to Figures 1 to 6The utility model provides a technical scheme: continuous labeling equipment for plate processing, including base 1, the front surface of base 1 left side is fixedly connected with the back of rotating mechanism 2, rotating mechanism 2 is by motor mounting seat 201, rotating motor 202 and rotating lever 203 are formed, the outer wall of rotating mechanism 2 is movably clamped with the inner wall of transmission mechanism 3, transmission mechanism 3 includes transmission roller 301, transmission belt 302, three plate bodies 303 and two sets of limiting block 304, the inner wall of transmission mechanism 3 is movably clamped with the outer wall of fixed mechanism 4,

[0024] The bottom of fixed mechanism 4 is fixedly connected with the top of base 1 right side, the top of transmission mechanism 3 is movably abuts with the bottom of labeling mechanism 5, labeling mechanism 5 includes labeling rotating lever 501, labeling volume body 502, labeling material receiving lever 503, labeling material outlet roller 504, labeling material outlet lever 505, two labeling fixed blocks 506, two movable slots 507 and labeling motor 508, the outer wall of labeling mechanism 5 is rotatably connected with the inner wall of two rebound mechanisms 6 respectively, two rebound mechanisms 6 are all by rebound pivot 601, rebound connecting rod 602, rebound spring 603 and rebound limiting plate 604.

[0025] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 , base 1 includes four columns 101, operation table top 102 and two rotating fixed blocks 103, the top of four columns 101 is fixedly connected with the bottom of operation table top 102, and four columns 101 are distributed in rectangular array about the center of operation table top 102 bottom, the top close to left side of operation table top 102 is fixedly connected with the bottom of two rotating fixed blocks 103 respectively, and two rotating fixed blocks 103 are symmetrically distributed about the center of operation table top 102 left side, the front surface of two rotating fixed blocks 103 is provided with rotating through-hole respectively, and column 101 can keep the device stable during working.

[0026] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 , the back of motor mounting seat 201 is fixedly connected with the front surface of operation table top 102 left side, and the top of motor mounting seat 201 is movably clamped with the bottom of rotating motor 202, one end of rotating motor 202 is fixedly connected with one end of rotating lever 203 through coupling, and the outer wall of both ends of rotating lever 203 is rotatably connected with the inner wall of two rotating through-holes respectively, and rotating motor 202 is started, and rotating rotating motor 202 drives rotating lever 203 to rotate through coupling.

[0027] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the inner wall of the transmission roller 301 is movably connected with the outer wall of the middle part of the rotating rod 203, the outer wall of the transmission roller 301 is drivingly connected with the inner wall of the left side of the transmission belt 302, the top part of the middle part of the transmission belt 302 movably abuts against the bottom of the three plate bodies 303 respectively, the top part of the transmission belt 302 close to the front and back of the three plate bodies 303 movably abuts against the bottom of the two groups of limiting blocks 304 respectively, the rotating rod 203 rotates to drive the transmission belt 302 to rotate through the transmission roller 301, and the transmission belt 302 drives the plate bodies 303 to move linearly.

[0028] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the fixing mechanism 4 is composed of a fixing roller 401, a fixing rotating rod 402 and two fixing mounting blocks 403, the outer wall of the middle part of the fixing roller 401 is drivingly connected with the inner wall of the right side of the transmission belt 302, the inner wall of the fixing roller 401 is movably connected with the outer wall of the middle part of the fixing rotating rod 402, the front of each of the two fixing mounting blocks 403 is provided with a fixing through hole, the inner wall of each of the two fixing through holes is rotatably connected with the outer wall of each end of the fixing rotating rod 402, the bottom of each of the two fixing mounting blocks 403 is fixedly connected with the top of the right side of the operation table top 102, and the two fixing mounting blocks 403 are symmetrically distributed about the middle part of the right side of the operation table top 102.

[0029] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the outer wall of the middle part of the labeling rotating rod 501 is in transmission connection with the top of the labeling roll body 502, the bottom of the labeling roll body 502 is in movable abutment with the top of one of the plate bodies 303, the inner wall of the right side of the labeling roll body 502 is in movable clamping connection with the outer wall of the middle part of the labeling material receiving rod 503, the top of the left side of the labeling roll body 502 is in transmission connection with the outer wall of the labeling material discharging roller 504, the inner wall of the labeling material discharging roller 504 is in movable clamping connection with the outer wall of the middle part of the labeling material discharging rod 505, the front surface of the middle part of the two labeling fixing blocks 506 is respectively provided with a movable slot 507, the outer wall of the two ends of the labeling material discharging rod 505 is respectively in movable sleeving connection with the inner wall of the two movable slots 507, the front surface of the top of the labeling fixing block 506 is respectively provided with two labeling through holes, the inner wall of the two labeling through holes is respectively in rotary connection with the outer wall of the two ends of the labeling material receiving rod 503, the inner wall of the other two labeling through holes is respectively in rotary connection with the outer wall of the two ends of the labeling material discharging rod 505, one end of the labeling material receiving rod 503 is fixedly connected with one end of the labeling motor 508 through a shaft coupling, the back surface of the labeling motor 508 is fixedly connected with the front surface of one of the labeling fixing blocks 506, the bottom of the two labeling fixing blocks 506 is fixedly connected with the top of the right side of the operation table top 102, the two labeling fixing blocks 506 are symmetrically distributed about the center of the right side of the operation table top 102, the top of the middle part of the two labeling fixing blocks 506 is respectively provided with a rebound through hole, the labeling motor 508 rotates to drive the labeling material receiving rod 503 to rotate through the shaft coupling, so as to wind the waste material after the labeling of the labeling roll body 502, avoid the waste material accumulation to affect the normal operation of the device, the linear motion of the plate body 303 drives the linear motion of the labeling roll body 502, the linear motion of the labeling roll body 502 drives the labeling material discharging roller 504 to rotate around the labeling material discharging rod 505, the rotation of the labeling material discharging roller 504 can continuously discharge the material, and the plate body 303 can be continuously labeled.

[0030] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the inner wall of the two rebound shafts 601 is rotatably connected with the outer wall of the two ends of the labeling rotating rod 501 respectively, the outer wall of the rebound shaft 601 is slidably connected with the inner wall of the movable groove 507, the top of the middle part of the rebound shaft 601 is fixedly connected with the bottom end of the rebound connecting rod 602, the outer wall of the bottom of the rebound connecting rod 602 is movably sleeved with the inner wall of the rebound spring 603, the top end of the rebound connecting rod 602 is movably clamped with the bottom of the rebound limiting plate 604, the outer wall of the rebound connecting rod 602 is movably sleeved with the inner wall of the rebound through hole, and the bottom of the rebound limiting plate 604 is movably abutted with the top of the labeling fixed block 506.

[0031] The use method and advantages of the utility model are as follows:

[0032] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 , by starting the rotating motor 202, the rotating motor 202 is rotated through the shaft coupling and drives the rotating rod 203 to rotate, the rotating rod 203 is rotated through the transmission roller 301 and drives the transmission belt 302 to rotate, the transmission belt 302 is rotated and drives the plate body 303 to move linearly, the plate body 303 moving linearly drives the labeling roll body 502 to move linearly, the labeling roll body 502 moving linearly can drive the labeling discharging roller 504 to rotate around the labeling discharging rod 505, the labeling discharging roller 504 can continuously discharge and continuously label the plate body 303, the plate body 303 moving linearly can drive the labeling rotating rod 501 to move upward through the labeling roll body 502, the labeling rotating rod 501 moving upward drives the rebound shaft 601 to move upward in the movable groove 507, the rebound shaft 601 moving upward can continuously press the rebound shaft 601 through the rebound spring 603 and the rebound connecting rod 602, so that the rebound shaft 601 moves vertically in the movable groove 507 and presses the labeling rotating rod 501 downward, finally, different thicknesses of plates can be labeled, and the labeling range is improved.

[0033] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous labelling apparatus for sheet material processing, comprising a base (1), characterised in that: The front surface of the left side of the base (1) is fixedly connected with the back surface of the rotating mechanism (2), the rotating mechanism (2) is composed of a motor mounting seat (201), a rotating motor (202) and a rotating rod (203), the outer wall of the rotating mechanism (2) is movably clamped with the inner wall of the transmission mechanism (3), the transmission mechanism (3) comprises a transmission roller (301), a transmission belt (302), three plate bodies (303) and two groups of limiting blocks (304), the inner wall of the transmission mechanism (3) is movably clamped with the outer wall of the fixing mechanism (4); The bottom of the fixing mechanism (4) is fixedly connected with the top of the right side of the base (1), the top of the transmission mechanism (3) movably abuts against the bottom of the labeling mechanism (5), the labeling mechanism (5) comprises a labeling rotating rod (501), a labeling roll body (502), a labeling material receiving rod (503), a labeling material discharging roller (504), a labeling material discharging rod (505), two labeling fixing blocks (506), two movable grooves (507) and a labeling motor (508), the outer wall of the labeling mechanism (5) is rotatably connected with the inner wall of two rebound mechanisms (6) respectively, and the two rebound mechanisms (6) each comprise a rebound rotating shaft (601), a rebound connecting rod (602), a rebound spring (603) and a rebound limiting plate (604).

2. The continuous labeling apparatus for sheet materials according to claim 1, characterized in that: The base (1) comprises four stand columns (101), an operation table top (102) and two rotating fixing blocks (103), the top of each of the four stand columns (101) is fixedly connected with the bottom of the operation table top (102), and the four stand columns (101) are arranged in a rectangular array about the center of the bottom of the operation table top (102), the top of the left side of the operation table top (102) is fixedly connected with the bottom of each of the two rotating fixing blocks (103) respectively, and the two rotating fixing blocks (103) are symmetrically arranged about the center of the left side of the operation table top (102), and the front surface of each of the two rotating fixing blocks (103) is provided with a rotating through hole.

3. The continuous labeling apparatus for sheet materials according to claim 2, characterized in that: The back surface of the motor mounting seat (201) is fixedly connected with the front surface of the left side of the operation table top (102), and the top of the motor mounting seat (201) is movably clamped with the bottom of the rotating motor (202), one end of the rotating motor (202) is fixedly connected with one end of the rotating rod (203) through a shaft coupling, and the outer walls of the two ends of the rotating rod (203) are rotatably connected with the inner walls of the two rotating through holes respectively.

4. The continuous labeling apparatus for sheet materials according to claim 3, characterized in that: The inner wall of the transmission roller (301) is movably clamped with the outer wall of the middle part of the rotating rod (203), and the outer wall of the transmission roller (301) is drivingly connected with the inner wall of the left side of the transmission belt (302), the top of the middle part of the transmission belt (302) is movably abutted against the bottom of each of the three plate bodies (303) respectively, and the top of the left side of the transmission belt (302) is movably clamped with the bottom of each of the two groups of limiting blocks (304) respectively, which are close to the front surfaces and the back surfaces of the three plate bodies (303).

5. The continuous labeling apparatus for sheet materials according to claim 4, characterized in that: The fixed mechanism (4) is composed of a fixed roller (401), a fixed rotating rod (402) and two fixed mounting blocks (403), the outer wall of the middle part of the fixed roller (401) is in transmission connection with the inner wall of the right side of the transmission belt (302), the inner wall of the fixed roller (401) is movably connected with the outer wall of the middle part of the fixed rotating rod (402), the front surface of each of the two fixed mounting blocks (403) is provided with a fixed through hole, the inner wall of each of the two fixed through holes is rotatably connected with the outer wall of the two ends of the fixed rotating rod (402), the bottom of each of the two fixed mounting blocks (403) is fixedly connected with the top of the right side of the operation table (102), and the two fixed mounting blocks (403) are symmetrically distributed about the middle part of the right side of the operation table (102).

6. The continuous labeling apparatus for sheet materials according to claim 4, characterized in that: The outer side wall of the middle part of the labeling rotating rod (501) is in transmission connection with the top of the labeling roll body (502), the bottom of the labeling roll body (502) is movably abutted with the top of one of the plate bodies (303), the inner wall of the right side of the labeling roll body (502) is movably connected with the outer wall of the middle part of the labeling material collecting rod (503), the top of the left side of the labeling roll body (502) is in transmission connection with the outer side wall of the labeling material discharging roller (504), the inner wall of the labeling material discharging roller (504) is movably connected with the outer wall of the middle part of the labeling material discharging rod (505), the front surface of the middle part of each of the two labeling fixing blocks (506) is provided with a movable groove (507), the outer wall of each end of the labeling material discharging rod (505) is movably sleeved with the inner wall of each of the two movable grooves (507), the front surface of the top of each of the two labeling fixing blocks (506) is provided with two labeling through holes, the inner wall of each of the two labeling through holes is rotatably connected with the outer wall of each end of the labeling material collecting rod (503), the inner wall of each of the other two labeling through holes is rotatably connected with the outer wall of each end of the labeling material discharging rod (505), one end of the labeling material collecting rod (503) is fixedly connected with one end of the labeling motor (508) through a shaft coupling, the back surface of the labeling motor (508) is fixedly connected with the front surface of one of the labeling fixing blocks (506), the bottom of each of the two labeling fixing blocks (506) is fixedly connected with the top of the right side of the operation table (102), and the two labeling fixing blocks (506) are symmetrically distributed about the center of the right side of the operation table (102), the top of the middle part of each of the two labeling fixing blocks (506) is provided with a rebound through hole.

7. The continuous labeling apparatus for sheet materials according to claim 6, characterized in that: The inner walls of the two rebound rotation shafts (601) are respectively rotationally connected with the outer walls of the two ends of the labeling rotation rod (501), and the outer wall of the rebound rotation shaft (601) is slidingly connected with the inner wall of the movable groove (507). The top of the middle part of the rebound rotation shaft (601) is fixedly connected with the bottom end of the rebound connecting rod (602), and the outer wall of the bottom of the rebound connecting rod (602) is movably sleeved with the inner wall of the rebound spring (603). The top end of the rebound connecting rod (602) is movably clamped with the bottom of the rebound limiting plate (604), and the outer wall of the rebound connecting rod (602) is movably sleeved with the inner wall of the rebound through hole. The bottom of the rebound limiting plate (604) is movably abutted with the top of the labeling fixed block (506).

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