A stepping displacement device and a metal barrel product cleaning line

Abstract

The present invention provides a step displacement device and a metal barrel product washing line to solve the problem of low cleaning efficiency in the existing metal barrel product washing or rinsing process. It includes: a bracket, the upper end of which has a horizontal track; a step beam, which includes a beam body and a plurality of connecting parts, the beam body is located above the horizontal track, and the connecting parts are fixedly connected to the bottom of the beam body; a lifting drive assembly, including a lifting drive unit, the lifting drive unit includes a telescopic driving mechanism, a support wheel and a hinge, the support wheel is slidably installed on the horizontal track, the hinge has a support hinge part, a drive hinge part and a lifting hinge part, the support hinge part is hinged at the rotating shaft of the support wheel, the telescopic driving mechanism has a fixed end and a telescopic end, the fixed end is hinged to a connecting part, the telescopic end is hinged to the driving hinge part, the driving hinge part is located below the horizontal track, and the lifting hinge part is hinged to another connecting part on one side of the fixed end; a translation driving mechanism, which is installed at one end of the bracket and is connected to the beam body driving.

Description

Technical Field

[0001] The invention relates to the field of metal product manufacturing equipment, and in particular to a stepping displacement device and a metal barrel product cleaning line. Background Art

[0002] In the manufacturing process of metal barrel-shaped products, cleaning and rinsing are very important steps. In the prior art, when cleaning or rinsing metal barrel-shaped products, cleaning liquid is poured into the barrel and then left to stand. During the standing cleaning, the cleaning liquid in the barrel does not flow, and the cleaning efficiency is low. In addition, the cleaning liquid is poured out manually afterwards, which also wastes a lot of manpower and material resources. Summary of the invention

[0003] The invention provides a stepping displacement device to solve the technical problem of low cleaning efficiency during the cleaning or rinsing process of metal barrel products in the prior art.

[0004] The present invention solves the above technical problems as follows: A stepping displacement device for cleaning or rinsing metal barrel products, comprising:

[0005] a bracket having a horizontal track at an upper end thereof;

[0006] A walking beam, comprising a beam body and a plurality of connecting members, wherein the beam body is located above the horizontal track and is used to connect the metal barrel product, and the connecting members are fixedly connected to the bottom of the beam body;

[0007] The lifting drive assembly comprises at least one lifting drive unit installed below the beam body, the lifting drive unit comprises a telescopic driving mechanism, a supporting wheel and a hinge, the supporting wheel is slidably installed on the horizontal track, the hinge comprises a supporting hinge part, a driving hinge part and a lifting hinge part, the supporting hinge part is hinged at the rotating shaft of the supporting wheel, the telescopic driving mechanism comprises a fixed end and a telescopic end, the fixed end is hinged to one of the connecting members, the telescopic end is tilted downward and hinged to the driving hinge part, the driving hinge part is located below the horizontal track, the lifting hinge part is hinged to another connecting member on one side of the fixed end, the lifting hinge part and the driving hinge part are respectively located on both sides of the supporting hinge part, when the telescopic end is extended and retracted, the driving hinge part and the lifting hinge part rotate around the supporting hinge part, the height of the lifting hinge part changes, driving the height of the beam body to change;

[0008] A translation driving mechanism is installed at one end of the bracket and is drivingly connected to the beam body, and is used for driving the beam body to move along the horizontal track.

[0009] The present invention also provides a metal barrel product cleaning line, which includes a loading section, a cleaning section, a flipping section, a rinsing section and a unloading section which are arranged in sequence from front to back according to the cleaning process. The loading section and the unloading section are respectively provided with a loading device and a unloading device, and the cleaning section and the rinsing section are respectively provided with the above-mentioned stepping displacement device, and the horizontal track is arranged along the front and rear directions. The beam body corresponding to each of the stepping displacement devices is fixedly installed with a barrel carrier for carrying metal barrel products. The flipping section is provided with a flipping device for flipping and pouring out the cleaning liquid in the metal barrel product after the cleaning of the cleaning section is completed.

[0010] The present invention provides a stepping displacement device. Due to the provision of a lifting drive component and a translation drive mechanism, when a metal barrel product is placed on a beam body for cleaning or rinsing, the lifting drive component drives the beam body to lift, and the translation drive mechanism drives the beam body to translate, thereby causing the cleaning liquid or rinsing liquid in the metal barrel product to shake in the barrel and be in a moving state, thereby accelerating the cleaning or rinsing process and speeding up the cleaning or rinsing process; in addition, the metal barrel product cleaning line provided by the present invention adopts the above-mentioned stepping displacement device, and adopts a loading device and a unloading device to realize loading and unloading, and pours out the cleaning liquid of the metal barrel product through a flipping device, which effectively saves manpower.

[0011] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 A schematic diagram of the structure of a stepping displacement device provided in Embodiment 1 of the present invention;

[0014] Figure 2 for Figure 1 Enlarged schematic diagram of the middle X region;

[0015] Figure 3 A schematic diagram of the structure of a metal barrel product cleaning line provided in the second embodiment of the present invention;

[0016] Figure 4 for Figure 3 Structural schematic diagram of the middle feeding device;

[0017] Figure 5 for Figure 3Side view of the metal barrel product washing line provided;

[0018] Figure 6 for Figure 5 Schematic diagram of the structure of the mid-refueling platform;

[0019] Figure 7 for Figure 3 A schematic diagram of the structure of the middle flip device;

[0020] Figure 8 for Figure 7 A schematic diagram of the top view of the structure of the middle flip device;

[0021] Fig. 9 for Figure 7 Schematic diagram of the structure of the rotating frame. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] Embodiment 1

[0024] like Figure 1 As shown, the present invention provides a step displacement device 10 for cleaning or rinsing metal barrel products, including a bracket 11, a step beam 12, a lifting drive assembly and a translation drive mechanism 14.

[0025] The bracket 11 is generally fixedly installed on the ground, and has a horizontal track 111 at its upper end; the walking beam 12 includes a beam body 121 and a plurality of connecting members 122, the beam body 121 is located above the horizontal track 111 and is used to connect the metal barrel product, and the connecting members 122 are fixedly connected to the bottom of the beam body 121;

[0026] The lifting drive assembly includes two lifting drive units 13, and the two lifting drive units 13 are respectively located at the two ends of the beam body 121. It can be understood that only one lifting drive unit is needed to achieve the lifting of the beam body. However, in actual use, according to the length of the beam body, in order to ensure the stable lifting and lowering of the beam body, in this embodiment, two lifting drive units 13 distributed at the two ends of the beam body 121 are used.

[0027] The lifting drive unit 13 includes a telescopic drive mechanism 131 , a support wheel 132 , a hinge 133 and a synchronous connecting rod 134 .

[0028] The support wheel 132 is slidably mounted on the horizontal track 111, and the hinge 133 has a support hinge 1331, a drive hinge 1332, a lifting hinge 1333 and a synchronous hinge 1334. The support hinge 1331, the drive hinge 1332 and the lifting hinge 1333 are not located on the same straight line. The support hinge 1331 is hinged at the rotating shaft of the support wheel 132. The telescopic drive mechanism 131 has a fixed end 1311 and a telescopic end 1312. The fixed end 1311 is hinged to a connecting member 122, and the telescopic end 1312 is tilted downward and hinged to the drive hinge 1332. The drive The hinged part 1332 is located below the horizontal track 111, and the lifting hinged part 1333 is hinged to another connecting member 122 on one side of the fixed end 1311. The lifting hinged part 1333 and the fixed end 1311 are respectively located on both sides of the supporting hinged part 1331. When the telescopic end 1312 is extended, the driving hinged part 1332 is lowered and the lifting hinged part 1333 is raised, thereby driving the beam body 121 to be lifted. The two ends of the synchronous connecting rod 134 correspond to the synchronous connecting parts 1334 hinged to the two hinges 133 respectively. The synchronous connecting rod 134 can ensure the synchronous rotation of the two hinges 133, thereby further ensuring the stable lifting and lowering of the beam body 121.

[0029] Specifically, the telescopic driving mechanism 131 is a synchronous hydraulic cylinder. It can be understood that the synchronous hydraulic cylinder is only one embodiment of the tripod of the present invention. In other embodiments, the telescopic driving mechanism 131 can also be a linear motor or a telescopic cylinder.

[0030] Among them, the translation drive mechanism 14 is installed at one end of the bracket 11 and is connected to the beam body driving, used to drive the beam body 121 to move along the horizontal track 111; specifically, the translation drive mechanism 14 is a telescopic cylinder installed at one end of the bracket, and the driving end 14 of the telescopic cylinder 14 is hinged to one end of the beam body 121.

[0031] When the stepping displacement device 10 provided in this embodiment is in use, the metal barrel product in the process of cleaning or rinsing is connected to the beam body 121, and the synchronous hydraulic cylinder and the translation drive mechanism 14 are started. When the telescopic end 1312 of the synchronous hydraulic cylinder is extended, the hinge part 1332 is driven to descend, and the lifting hinge part 1333 is raised, thereby driving the beam body 121 to be lifted. When the telescopic end 1312 of the synchronous hydraulic cylinder is contracted, the hinge part 1332 is driven to be raised, and the lifting hinge part 1333 is lowered, thereby driving the beam body 121 to be lowered, thereby realizing the rising or falling of the beam body 121 and the metal barrel product connected thereto. At the same time, the translation drive mechanism 14 drives the beam body to move horizontally, thereby realizing the metal barrel product being in a moving state. The cleaning liquid or rinsing liquid therein moves with the metal barrel product, thereby accelerating the cleaning or rinsing of the inner wall of the metal barrel product and improving the cleaning or rinsing efficiency.

[0032] Embodiment 2

[0033] like Figure 3 As shown, an embodiment of the present invention provides a metal barrel product cleaning line 100, which includes a loading section a, a cleaning section b, a flipping section c, a rinsing section d and a unloading section e, which are arranged in sequence from front to back according to the cleaning process. The loading section a and the unloading section e are respectively provided with a loading device 20 and a unloading device 30, and the cleaning section b and the rinsing section d are respectively provided with a stepping displacement device 10 provided in Example 1, wherein the horizontal track 111 in the stepping displacement device 10 is arranged along the front and rear direction, and the beam body 121 corresponding to each stepping displacement device 10 is fixedly installed with a barrel carrier 123 for carrying the metal barrel product 200, and the flipping section c is provided with a flipping device 40 for flipping and pouring out the cleaning liquid in the metal barrel product 200 after the cleaning in the cleaning section b is completed.

[0034] Among them, combined Figure 5 The barrel carrier 123 includes a connecting portion 1231 and a bearing portion 1232 . The connecting portion 1231 is fixedly connected to the two sides of the corresponding beam body 121 . The bearing portion 1232 is located at the lower end of the connecting portion 1231 and is used to carry the metal barrel product 200 .

[0035] like Figure 3 As shown, the above-mentioned metal barrel product cleaning line 100 also includes a material changing platform 50, which is respectively arranged on both sides of the beam body 121 corresponding to the cleaning section b and on both sides of the beam body 121 corresponding to the rinsing section d. The distance between the material changing platform 50 and the corresponding beam body 121 is consistent with the distance between the bearing part 1232 and the corresponding beam body 121.

[0036] like Figure 4 As shown, the loading device 20 includes a first crossbeam 21, a loading conveyor 22, a first vertical slide 23 and a first sliding frame 24. The first crossbeam 21 is mounted at the front end of the beam body 121 corresponding to the cleaning section b and is arranged along the front-back direction. The loading conveyor 22 is movably mounted on the first crossbeam 21. The first vertical slide 23 is fixedly mounted on the loading conveyor 22. The first sliding frame 24 is vertically slidably mounted on the first vertical slide 23. The lower end of the first sliding frame 24 has a plurality of loading forks 241.

[0037] Specifically, a driving motor 25 is installed at one end of the first beam 21, which is used to drive the loading and conveying vehicle 22 to move on the first beam 21; the loading and conveying vehicle 22 includes a vehicle body 221, a lifting motor 222 and a lifting belt 223, one end of the lifting belt 223 is driven and installed on the output shaft of the lifting motor 222, and the other end is connected to the first sliding frame 24, which is used to drive the first sliding frame 24 to move up and down on the first vertical slide.

[0038] like Figure 3As shown, the unloading device 30 includes a second cross beam 31, a unloading conveyor trolley 32, a second vertical slide 33 and a second sliding frame 34. The second cross beam 31 is erected at the rear end of the beam body 121 corresponding to the rinsing section d and is arranged along the front-to-back direction. The unloading conveyor trolley 32 is movably installed on the second cross beam 31, the second vertical slide 33 is fixedly installed on the unloading conveyor trolley 32, and the second sliding frame 34 is vertically slidably installed on the second vertical slide 33. The lower end of the second sliding frame 34 has a plurality of unloading forks 341. It can be clearly seen that the structure of the unloading device 30 is basically the same as that of the loading device, and the connection of its internal structure will not be repeated here.

[0039] Combination Figure 6 As shown, the material changing platform 50 is an L-shaped member, which includes a first connecting plate 51 and a second connecting plate 52. The first connecting plate 51 is vertically installed on one side of the corresponding beam body 121, and the second connecting plate 52 is fixedly connected to the upper end of the first connecting plate 51 and is horizontally arranged. An opening is formed on one side of the second connecting plate 52 close to the corresponding beam body 121.

[0040] When the metal barrel product 200 is placed on the loading fork 241 of the loading device 20, the loading conveyor 22 is controlled to move on the second crossbeam 21. When the loading fork 241 corresponds to the position of the material changing platform 50, the first sliding frame 24 is driven to move downward along the first vertical slide 23, and the loading fork 241 passes through the opening of the second connecting plate 52, and the metal barrel product 200 is left on the upper end of the second connecting plate 52. At the same time, the loading fork 241 withdraws from the side of the L-shaped part with the horizontal movement of the loading conveyor 32, and then the barrel carrier 123 moves to the position corresponding to the position of the material changing platform 50 with the driving of the translation drive mechanism 14, and the bearing part 1232 enters under the second connecting plate 52 from the side of the L-shaped part, and is lifted upward under the action of the lifting drive component 13 to lift the metal barrel product 200; similarly, the opposite steps are adopted to realize the unloading of the metal barrel product by the unloading fork 341. The setting of the material changing platform 50 ensures that the loading and unloading process does not require manual handling of the metal barrel products, which effectively saves manpower.

[0041] Among them, Figures 7 to 9 As shown, the turning device 40 includes a turning bracket 41 , a rotating frame 42 , a rotating shaft 43 and a rotating driving assembly 44 .

[0042] The rotating shaft 43 is rotatably installed on the flip bracket 41 along its axis. The rotating shaft 43 has a proximal end 431 and a distal end 432. The proximal end 431 of the rotating shaft 43 extends out of the flip bracket 41. The rotating drive assembly 44 includes a first driving motor 441 and a first reducer 442 installed on the upper end of the flip bracket 41. The first driving motor 441 is drivingly connected to the first reducer 442. The driving end of the first reducer 442 is connected to the proximal end 431 of the rotating shaft 43 for driving the rotating shaft 43 to rotate along its axis. The rotating frame 42 includes a frame body 421 and an arm holding mechanism 422. The frame body 421 is installed at the distal end 432 of the rotating shaft 43. The arm holding mechanism 422 is installed at one end of the frame body 421 away from the flip bracket 41, and is used to clamp metal cylindrical products.

[0043] In this embodiment, the arm mechanism 422 includes a first arm 4221 , a second arm 4222 , a first rack 4223 , a second rack 4224 , a gear 4225 and a gear driving assembly 4226 .

[0044] The first arm 4221 includes a first clamping portion 42211 and a first moving portion 42212, and the second arm 4222 includes a second clamping portion 42221 and a second moving portion 42222. The first clamping portion 42211 and the second clamping portion 42221 are installed on both sides of the frame 421 in parallel and at intervals, and the first moving portion 42212 and the second moving portion 42222 are both slidably installed on the frame 421. The first moving portion 42212 and the first clamping portion 422 11 is vertically arranged, the second moving part 42222 and the second clamping part 42221 are vertically arranged, the first rack 4223 is installed on the first moving part 42212, the second rack 4224 is installed on the second moving part 42222, the tooth structures of the first rack 4223 and the second rack 4224 are arranged oppositely, the gear 4225 is arranged between the first rack 4223 and the second rack 4224, and the two sides are respectively matched with the first rack 4223 and the second rack 4224.

[0045] The gear drive assembly 4226 includes a second drive motor 42261 and a second reducer 42262. The second drive motor 42261 is fixedly mounted on the frame 421. The second reducer 42262 is connected to the second drive motor 42261. The driving end of the second reducer 42262 is connected to the gear 4225 for driving the gear 4225 to rotate.

[0046] The frame 421 has a first slide groove 421a and a second slide groove 421b arranged in parallel and spaced apart, both ends of the first slide groove 421a and the second slide groove 421b are open, the first moving part 42212 is slidably installed in the first slide groove 421a, and the second moving part 42222 is slidably installed in the second slide groove 421b.

[0047] When the barrel-shaped product 200 filled with detergent reaches the corresponding working position of the flipping device, the second drive motor 42261 drives the second reducer 42262 to work, and the second reducer 42262 drives the gear 4225 to rotate, and the first rack 4223 and the second rack 4224 move on both sides of the gear 4225 respectively, so that the first moving part 42212 and the second moving part 42222 move in opposite directions, thereby making the first clamping part 42211 and the second clamping part 42221 approach or move away from each other to match the size of the corresponding barrel-shaped product 200. When the first clamping part 42211 and the second clamping part 42221 clamp the barrel-shaped product 200, the first drive motor 441 is started, the first drive motor 441 drives the first reducer 442 to work, and the first reducer 442 drives the rotating shaft 43 to rotate, thereby making the rotating frame 42 rotate as a whole, so that the barrel-shaped product 200 is flipped, so that the liquid therein is also poured out, and there is no need to manually pour the liquid.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A stepping displacement device for cleaning or rinsing metal barrel products, characterized in that: include: a bracket having a horizontal track at an upper end thereof; A walking beam, comprising a beam body and a plurality of connecting members, wherein the beam body is located above the horizontal track and is used to connect the metal barrel product, and the connecting members are fixedly connected to the bottom of the beam body; The lifting drive assembly comprises at least one lifting drive unit installed below the beam body, the lifting drive unit comprises a telescopic driving mechanism, a supporting wheel and a hinge, the supporting wheel is slidably installed on the horizontal track, the hinge comprises a supporting hinge part, a driving hinge part and a lifting hinge part, the supporting hinge part is hinged at the rotating shaft of the supporting wheel, the telescopic driving mechanism comprises a fixed end and a telescopic end, the fixed end is hinged to one of the connecting members, the telescopic end is tilted downward and hinged to the driving hinge part, the driving hinge part is located below the horizontal track, the lifting hinge part is hinged to another connecting member on one side of the fixed end, the lifting hinge part and the driving hinge part are respectively located on both sides of the supporting hinge part, when the telescopic end is extended and retracted, the driving hinge part and the lifting hinge part rotate around the supporting hinge part, the height of the lifting hinge part changes, driving the height of the beam body to change; A translation driving mechanism, which is installed at one end of the bracket and is drivingly connected to the beam body, and is used to drive the beam body to move along the horizontal track; The lifting drive assembly includes two lifting drive units and a synchronous connecting rod, the two lifting drive units are respectively located at the two ends of the beam body, each of the hinges has a synchronous hinge part, and the two ends of the synchronous connecting rod are respectively correspondingly hinged to the synchronous hinge parts of the two hinges; The telescopic driving mechanism is a telescopic cylinder.

2. The stepping displacement device according to claim 1, characterized in that: The translation driving mechanism is a telescopic cylinder installed at one end of the bracket, and the driving end of the telescopic cylinder is hinged to one end of the beam body.

3. A metal barrel product cleaning line, characterized in that: The invention comprises a loading section, a cleaning section, a flipping section, a rinsing section and a unloading section which are arranged in sequence from front to back according to the cleaning process. The loading section and the unloading section are respectively provided with a loading device and a unloading device. The cleaning section and the rinsing section are respectively provided with a stepping displacement device as described in any one of claims 1 to 2. The horizontal track is arranged along the front-to-back direction. The beam body corresponding to each stepping displacement device is fixedly installed with a barrel carrier for carrying metal barrel products. The flipping section is provided with a flipping device for flipping and pouring out the cleaning liquid in the metal barrel products after the cleaning of the cleaning section is completed.

4. The metal barrel product cleaning line according to claim 3 is characterized in that: The barrel carrier includes a connecting portion and a bearing portion, wherein the connecting portion is fixedly connected to two sides of the corresponding beam body, and the bearing portion is located at the lower end of the connecting portion and is used for bearing the metal barrel product.

5. The metal barrel product cleaning line according to claim 4 is characterized in that: It also includes a material changing platform, which is respectively arranged on both sides of the beam body corresponding to the cleaning section and on both sides of the beam body corresponding to the rinsing section, and the distance between the material changing platform and the corresponding beam body is consistent with the distance between the bearing part and the corresponding beam body; The feeding device comprises a first cross beam, a feeding conveyor vehicle, a first vertical slideway and a first sliding frame, wherein the first cross beam is mounted at the front end of the beam body corresponding to the cleaning section and is arranged along the front-rear direction, the feeding conveyor vehicle is movably mounted on the first cross beam, the first vertical slideway is fixedly mounted on the feeding conveyor vehicle, the first sliding frame is vertically slidably mounted on the first vertical slideway, and the lower end of the first sliding frame has a plurality of feeding forks; The unloading device includes a second cross beam, a unloading conveyor vehicle, a second vertical slide and a second sliding frame. The second cross beam is mounted on the rear end of the beam body corresponding to the rinsing section and is arranged along the front-to-back direction. The unloading conveyor vehicle can be movably installed on the second cross beam. The second vertical slide is fixedly installed on the unloading conveyor vehicle. The second sliding frame can be vertically slidably installed on the second vertical slide. The lower end of the second sliding frame has a plurality of unloading forks.

6. The metal barrel product cleaning line according to claim 5, characterized in that: The material changing platform is an L-shaped member, which includes a first connecting plate and a second connecting plate. The first connecting plate is vertically installed on one side of the corresponding beam body, and the second connecting plate is fixedly connected to the upper end of the first connecting plate and is horizontally arranged. The second connecting plate is formed with an opening on one side close to the corresponding beam body.

7. The metal barrel product cleaning line according to claim 3 is characterized in that: The flipping device includes a flipping bracket, a rotating frame, a rotating shaft and a rotating drive assembly. The rotating shaft is rotatably installed on the flipping bracket along its axis, and one end of the rotating shaft extends out of the flipping bracket. The rotating drive assembly includes a first driving motor and a first reducer installed on the upper end of the flipping bracket. The first driving motor is drivingly connected to the first reducer. The driving end of the first reducer is connected to one end of the rotating shaft for driving the rotating shaft to rotate along its axis. The rotating frame includes a frame body and an arm holding mechanism. The frame body is installed at one end of the rotating shaft away from the flipping bracket, and the arm holding mechanism is installed at one end of the frame body away from the flipping bracket, and is used to clamp metal barrel products.

8. The metal barrel product cleaning line according to claim 7 is characterized in that: The arm-holding mechanism includes a first arm, a second arm, a first rack, a second rack, a gear and a gear driving assembly, the first arm includes a first clamping part and a first moving part, the second arm includes a second clamping part and a second moving part, the first clamping part and the second clamping part are installed on both sides of the frame in parallel and at intervals, the first moving part and the second moving part can be slidably installed on the frame, the first moving part and the first clamping part are vertically arranged, the second moving part and the second clamping part are vertically arranged, the first rack is installed on the first moving part, the second rack is installed on the second moving part, the first rack and the second rack are arranged on the first moving part, The tooth structures are arranged relatively to each other, the gear is arranged between the first rack and the second rack, and the two sides are respectively matched with the first rack and the second rack, the gear drive assembly includes a second drive motor and a second reducer, the second drive motor is fixedly mounted on the frame, the second reducer is connected to the second drive motor, and the driving end of the second reducer is connected to the gear for driving the gear to rotate; the frame is provided with a first slide groove and a second slide groove arranged in parallel and spaced apart, the two ends of the first slide groove and the second slide groove are open, the first moving part is slidably mounted on the first slide groove, and the second moving part is slidably mounted in the second slide groove.

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