A device for cutting and clamping car body panels

Abstract

This utility model relates to the field of car panel processing technology, and discloses a car panel cutting and clamping device, including a conveying structure and a cutting structure. The conveying structure is located in front of the cutting structure and is used to convey the panel to be cut. The cutting structure is used to cut the conveyed panel. It also includes a support plate, a clamping structure, a clamping drive assembly, and a sliding assembly. There are two support plates, one of which has a support plate through groove. One end of the two support plates is connected by a support connecting plate. The clamping structure is located behind the cutting structure and is used to clamp the cut panel. The sliding assembly is fixed to the upper end of the support plate. The conveying structure, cutting structure, and clamping structure are respectively mounted on the support plate via the sliding assembly. This utility model can convey and limit the movement of car panels, automatically cut and clamp them, improve the cutting efficiency of car panels, and meet the processing needs within a certain size range.

Description

Technical Field

[0001] This utility model relates to the field of car panel processing technology, and in particular to a car panel cutting and clamping device. Background Technology

[0002] The elevator car is a box-shaped space used to carry and transport people and goods. It generally consists of main components such as the car floor, car walls, car roof, and car doors. The car body is used to carry passengers, goods, and other loads. In the processing of the sheet metal for the car walls, car roof, and car doors, the sheets need to be cut to size and then welded together.

[0003] There are also some elevator car panel cutting devices in the existing technology, such as the Chinese invention patent with application number CN202410158481.2, entitled "A Cutting Device for Elevator Car Panels". However, it mainly solves the problem that during the use of laser cutting machine, molten slag falls from the workpiece and sticks to the blade grid, affecting the normal use of the platform. It is difficult to remove manually, and removing this molten slag usually requires a lot of effort.

[0004] For example, Chinese invention patent application number CN202322012390.1, entitled "A Clamping Device for Facilitating Sheet Cutting," can clamp and fix sheets of different sizes, adjust the cutting length and position, and collect dust generated during cutting using a suction fan, thus improving the practicality of the clamping device for sheet cutting. However, it cuts using a cutting blade and cannot perform the clamping operation on the sheet. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a car panel cutting and clamping device, which can convey and limit the car panel, automatically cut and clamp it, improve the cutting and processing efficiency of the car panel, and meet the processing and use of car panels within a certain size range.

[0006] This utility model is achieved using the following technical solution: a car panel cutting and clamping device, comprising a conveying structure and a cutting structure. The conveying structure is located in front of the cutting structure and is used to convey the panel to be cut. The cutting structure is used to cut the conveyed panel. It also includes a support plate, a clamping structure, a clamping drive assembly, and a sliding assembly. There are two support plates, one of which has a support plate through groove. One end of the two support plates is connected by a support connecting plate. The clamping structure is located behind the cutting structure and is used to clamp the cut panel. The sliding assembly is fixed to the upper end of the support plate. The conveying structure, cutting structure, and clamping structure are respectively mounted on the support plate via the sliding assembly. The clamping drive assembly is fixed to the bottom end of the support plate with the through groove. The drive end of the clamping drive assembly is connected to the clamping structure through the through groove, driving the clamping structure to move back and forth.

[0007] Furthermore, the sliding assembly includes two main slide rails and several main sliders that are slidably mounted on the main slide rails. The two main slide rails are symmetrically fixed to the upper ends of two support plates. The bottom ends of the conveying structure, cutting structure, and clamping structure are respectively fixed with main sliders, which can move back and forth on the two main slide rails.

[0008] Furthermore, the clamping structure includes a clamp, a clamp mounting frame, a clamping bracket, and a clamping bracket track. The clamping bracket track is integrally formed and set at the top of the clamping bracket. The clamp mounting frame is slidably mounted on the clamping bracket track through a sliding groove at its bottom end, and the clamp is fixed on the clamp mounting frame.

[0009] Furthermore, the clamping drive assembly includes a motor, a lead screw, a lead screw support, a lead screw nut, and a lead screw nut connecting seat. The motor and the two lead screw support are respectively fixed to the bottom end of the support plate with a through groove. The lead screw is rotatably mounted on the two lead screw support. One end of the lead screw is connected to the drive end of the motor through a coupling. The lead screw nut is sleeved on the lead screw and fixed to the lead screw nut connecting seat. The lead screw nut connecting seat is fixedly connected to the side end of the clamping bracket. The motor drives the lead screw to rotate, and through the lead screw nut and the lead screw nut connecting seat, it drives the clamping bracket to move horizontally back and forth on the main slide rail.

[0010] Furthermore, the cutting structure includes a cutting bracket, sliding columns, a lower cutter mounting plate, an upper cutter mounting plate, a top mounting plate, an upper cutter cylinder, a cutter fixing seat, an upper cutter, and a lower cutter. Two sliding columns are vertically fixed to the top of the cutting bracket. The upper cutter mounting plate is mounted on the sliding columns via a sliding sleeve. The lower cutter mounting plate is located below the upper cutter mounting plate. The top mounting plate is fixed to the top of the two sliding columns. The upper cutter cylinder is fixed to the top mounting plate, and its telescopic end is connected to the upper cutter mounting plate. The upper cutter and the lower cutter are fixed to the upper cutter mounting plate and the lower cutter mounting plate, respectively, via cutter fixing seats.

[0011] Furthermore, the cutting structure also includes a lower cutter cylinder, which is fixed at the bottom of the cutting bracket. The telescopic end of the lower cutter cylinder is connected to the bottom of the lower cutter mounting plate, which is also mounted on the slide column via a sliding sleeve.

[0012] Furthermore, the conveying structure includes a conveying bracket, a conveying bracket slide rail, a side panel support plate, a limiting plate, and a limiting mounting bracket. The conveying bracket slide rail is integrally formed and set at the top of the conveying bracket. The limiting mounting bracket is installed on the conveying bracket slide rail through its bottom groove. The side panel support plate is fixed to the inner side of the bottom end of the limiting mounting bracket. The limiting plate is fixed to the upper front end of the side panel support plate. A panel channel is formed between the limiting plate and the side panel support plate.

[0013] Furthermore, the conveying structure also includes an adjusting cylinder mounting platform and an adjusting cylinder. The adjusting cylinder is fixed on the upper part of the adjusting cylinder mounting platform, and the telescopic end of the adjusting cylinder is connected to the conveying bracket.

[0014] Furthermore, the conveying structure also includes a fixed cylinder and a fixed plate. The fixed cylinder is fixed to the front side of the limit mounting bracket, and the fixed plate is fixed to the telescopic end of the fixed cylinder.

[0015] Furthermore, the conveying structure also includes a central plate support plate, a limiting mounting rod, a limiting column, a limiting seat, a limiting wheel frame, and a limiting wheel. Two limiting columns are symmetrically fixed at both ends of the conveying bracket. The limiting seat is installed on the limiting column. Both ends of the limiting mounting rod are fixed to the outside of the limiting seat. The top of the limiting wheel frame is fixed to the center of the limiting mounting rod. The limiting wheel is rotatably installed on the limiting wheel frame. The central plate support plate is fixed on the conveying bracket slide rail and is located below the limiting wheel.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The present invention relates to a car panel cutting and clamping device, which can convey and limit the car panel, automatically cut and clamp it, improve the cutting efficiency of the car panel, and meet the processing needs of car panels within a certain size range.

[0018] 2. The present invention provides a car panel cutting and clamping device, wherein the two ends of the car panel to be cut form a panel channel between the limiting plate and the side panel support plate, and the middle part is supported and limited by the limiting wheel and the middle panel support plate, which can maintain its stability during cutting and avoid shaking.

[0019] 3. The present invention provides a car panel cutting and clamping device, which utilizes an upper cutter cylinder and a lower cutter cylinder to drive the cutter to cut the car panel between them, thereby improving cutting efficiency and quality.

[0020] 4. The car panel cutting and clamping device of this utility model can realize the automatic clamping of car panels through the cooperation of clamping structure and clamping drive component, thereby improving work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model after removing the support plate and the support connecting plate;

[0024] Figure 4 This is a schematic diagram of the structure of the present invention, which removes the support plate, the support connecting plate and the clamping drive assembly;

[0025] Figure 5 This is a schematic diagram of the conveying structure in this utility model.

[0026] In the diagram: Support plate-1; Conveying structure-2; Cutting structure-3; Clamping structure-4; Clamping drive assembly-5; Sliding assembly-6; Main slide rail-11; Main slider-12; Support plate through slot-13; Support connecting plate-14; Adjusting cylinder mounting platform-21; Adjusting cylinder-22; Conveying bracket-23; Conveying bracket slide rail-231; Side plate support plate-24; Limiting plate-25; Limiting mounting bracket-26; Fixing cylinder-27; Fixing plate-28; Middle plate support plate-29; Limiting mounting rod-210; Limiting post-211 Limit seat-212; Limit wheel frame-213; Limit wheel-214; Cutting bracket-31; Sliding column-32; Lower cutter mounting plate-33; Upper cutter mounting plate-34; Top mounting plate-35; Upper cutter cylinder-36; Cutter fixing seat-37; Upper cutter-38; Lower cutter-39; Lower cutter cylinder-310; Fixture-41; Fixture mounting frame-42; Clamping bracket-43; Clamping bracket rail-431; Motor-51; Lead screw-52; Lead screw support seat-53; Lead screw nut-54; Lead screw nut connecting seat-55. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0028] The purpose of this utility model is to address the shortcomings of existing technologies by providing a car body panel cutting and clamping device.

[0029] Example 1

[0030] This embodiment provides a car body panel cutting and clamping device, referencing... Figure 1 , Figure 2 As shown, the assembly includes a support plate 1, a conveying structure 2, a cutting structure 3, a clamping structure 4, a clamping drive assembly 5, and a sliding assembly 6. There are two support plates 1, one of which has a support plate through-slot 13. The front ends of the two support plates 1 are connected by a support connecting plate 14. The conveying structure 2 is located in front of the cutting structure 3 and is used to convey the material to be cut. The cutting structure 3 is used to cut the conveyed material. The clamping structure 4 is located behind the cutting structure 3 and is used to clamp the cut material. The clamping drive assembly 5 is fixed to the bottom end of the support plate 1 with the through-slot. The drive end of the clamping drive assembly 5 is connected to the clamping structure 4 through the through-slot, driving the clamping structure 4 to move back and forth. The sliding assembly 6 is fixed to the upper end of the support plate 1. The conveying structure 2, the cutting structure 3, and the clamping structure 4 are respectively installed on the support plate 1 through the sliding assembly 6, so that the conveying structure 2, the cutting structure 3, and the clamping structure 4 can all move horizontally using the sliding assembly 6. In this embodiment, the bottom end of the cutting structure 3 is fixed to the support plate 1 by a connecting angle iron to fix it and keep it stable during operation. However, when it is necessary to adjust the position, the connecting angle iron can be disassembled and fixed in other positions to adjust the position of the cutting structure 3.

[0031] Specifically, refer to Figure 3 As shown, the sliding assembly 6 includes two main slide rails 11 and several main sliders 12 that are slidably mounted on the main slide rails 11. The two main slide rails 11 are symmetrically fixed to the upper ends of the two support plates 1. The bottom ends of the conveying structure 2, the cutting structure 3, and the clamping structure 4 are respectively fixed with main sliders 12, which can move back and forth on the two main slide rails 11.

[0032] Reference Figure 3As shown, the cutting structure 3 includes a cutting bracket 31, sliding columns 32, a lower cutter mounting plate 33, an upper cutter mounting plate 34, a top mounting plate 35, an upper cutter cylinder 36, a cutter fixing seat 37, an upper cutter 38, and a lower cutter 39. Two sliding columns 32 are vertically fixed to the top of the cutting bracket 31. The upper cutter mounting plate 34 is mounted on the sliding columns 32 via a sliding sleeve. The lower cutter mounting plate 33 is positioned below the upper cutter mounting plate 34. The top mounting plate 35 is fixed to the top of the two sliding columns 32. The upper cutter cylinder 36 is fixed to the top mounting plate 35, and its telescopic end is connected to the upper cutter mounting plate 34. The upper cutter 38 and lower cutter 39 are fixed to the upper cutter mounting plate 34 and lower cutter mounting plate 33 respectively via the cutter fixing seat 37. The lower cutter mounting plate 33 can be fixedly mounted below the upper cutter mounting plate 34, thus ensuring that the lower cutter 39 is fixedly mounted. Alternatively, the same installation method as the upper cutter mounting plate 34 can be used, that is, the lower cutter mounting plate 33 is also mounted on the sliding column 32 via a sliding sleeve. In this embodiment, the latter is adopted, and the lower cutter cylinder 310 is fixed to the bottom end of the cutting bracket 31. The telescopic end of the lower cutter cylinder 310 is connected to the bottom end of the lower cutter mounting plate 33, so that the upper cutter 38 and the lower cutter 39 move relative to each other under the drive of the upper cutter cylinder 36 and the lower cutter cylinder 310. The two can cut the car body panel between them, thereby improving cutting efficiency and quality.

[0033] Example 2

[0034] This embodiment provides a car panel cutting and clamping device, which is based on the structure in Embodiment 1, and refers to... Figure 3 As shown, the clamping structure 4 includes a clamp 41, a clamp mounting frame 42, a clamping bracket 43, and a clamping bracket track 431. The clamping bracket track 431 is integrally formed and set at the top of the clamping bracket 43. The clamp mounting frame 42 is slidably mounted on the clamping bracket track 431 through a sliding groove at its bottom end. The clamp 41 is fixed on the clamp mounting frame 42. In this embodiment, the clamp 41 uses a pneumatic clamp from the prior art. The clamp 41 is used to clamp the cut sheet metal. Since the elevator car sheet metal has different sizes, in order to clamp different elevator car sheet metal, the clamp 41 can move left and right on the clamping bracket track 431 using the clamp mounting frame 42 to adjust the distance between the two clamps 41, so that it is clamped at a suitable position on the elevator car sheet metal, which can meet the clamping work of elevator car sheet metal within a certain range of size and improve the stability during movement.

[0035] Reference Figure 3As shown, the clamping drive assembly 5 includes a motor 51, a lead screw 52, ​​a lead screw support 53, a lead screw nut 54, and a lead screw nut connecting seat 55. The motor 51 and the two lead screw support seats 53 are respectively fixed to the bottom end of the support plate 1 with a through groove. The lead screw 52 is rotatably mounted on the two lead screw support seats 53. One end of the lead screw 52 is connected to the drive end of the motor 51 through a coupling. The lead screw nut 54 is sleeved on the lead screw 52 and fixed on the lead screw nut connecting seat 55. The lead screw nut connecting seat 55 is fixedly connected to the side end of the clamping bracket 43. The motor 51 drives the lead screw 52 to rotate, and through the lead screw nut 54 and the lead screw nut connecting seat 55, it drives the clamping bracket 43 to move back and forth horizontally on the main slide rail 11.

[0036] Example 3

[0037] This embodiment provides a car body panel cutting and clamping device, referencing... Figure 4 , Figure 5 As shown, the conveying structure 2 includes a conveying bracket 23, a conveying bracket slide rail 231, a side panel support plate 24, a limiting plate 25, and a limiting mounting bracket 26. The conveying bracket slide rail 231 is integrally formed and located at the top of the conveying bracket 23. The limiting mounting bracket 26 is mounted on the conveying bracket slide rail 231 via its bottom groove. Normally, the limiting mounting bracket 26 is fixed to the conveying bracket slide rail 231 with screws. When conveying elevator car panels of different sizes, the distance between the two limiting mounting brackets 26 can be adjusted to meet the limiting operation of elevator car panel conveying within a certain size range. The side panel support plate 24 is fixed to the inner bottom of the limiting mounting bracket 26, and the limiting plate 25 is fixed to the upper front part of the side panel support plate 24. A panel channel is formed between the limiting plate 25 and the side panel support plate 24, allowing both ends of the elevator car panel to pass through the panel channel on both sides, preventing the car panel from tilting and improving the flatness of subsequent cutting.

[0038] Reference Figure 4 , Figure 5 As shown, the conveying structure 2 also includes an adjusting cylinder mounting platform 21, an adjusting cylinder 22, a fixing cylinder 27, and a fixing plate 28. The adjusting cylinder mounting platform 21 is fixed on the supporting connecting plate 14, and the adjusting cylinder 22 is fixed on the upper end of the adjusting cylinder mounting platform 21. The telescopic end of the adjusting cylinder 22 is connected to the conveying bracket 23. The position of the conveying structure 2 can be adjusted back and forth within a certain range by the adjusting cylinder 22. The fixing cylinder 27 is fixed on the front side of the limiting mounting bracket 26, and the fixing plate 28 is fixed on the telescopic end of the fixing cylinder 27. The fixing cylinder 27 drives the fixing plate 28 to move downward, which can clamp the elevator car material being cut, keep it stable, and prevent shaking during cutting.

[0039] Reference Figure 4 , Figure 5As shown, the conveying structure 2 also includes a central plate support plate 29, a limiting mounting rod 210, a limiting column 211, a limiting seat 212, a limiting wheel frame 213, and a limiting wheel 214. Two limiting columns 211 are symmetrically fixed at both ends of the conveying bracket 23. The limiting seat 212 is mounted on the limiting column 211. Both ends of the limiting mounting rod 210 are fixed to the outside of the limiting seat 212. The top of the limiting wheel frame 213 is fixed to the center of the limiting mounting rod 210. The limiting wheel 214 is rotatably mounted on the limiting wheel frame 213. The central plate support plate 29 is fixed on the conveying bracket slide rail 231 and is located below the limiting wheel 214. The limiting wheel 214 and the central plate support plate 29 limit the center of the elevator car plate to be cut. In conjunction with the limiting plate 25 and the side plate support plate 24, the stability of the plate is further ensured.

[0040] In operation, the elevator car panel cutting and clamping device of this utility model forms a panel channel between the two ends of the conveyed elevator car panel to be cut through the limiting plate 25 and the side panel support plate 24. The middle part is supported and limited by the limiting wheel 214 and the middle panel support plate 29. During cutting, the fixing cylinder 27 drives the fixing plate 28 to move down, clamping the rear part of the elevator car panel to keep it stable and prevent shaking during cutting.

[0041] Then, the clamp 41 holds the front end of the plate, and the upper cutter cylinder 36 and the lower cutter cylinder 310 drive the upper cutter 38 and the lower cutter 39 respectively to cut the car plate. After cutting, the motor 51 in the clamping drive assembly 5 drives the lead screw 52 to rotate, which drives the clamping bracket 43 to move on the main slide rail 11 through the lead screw nut 54 and the lead screw nut connecting seat 55, thereby moving the clamping bracket 43 and the car plate on it backward. This enables automatic cutting and clamping of the car plate, improves work efficiency, and can meet the processing needs of elevator car plates within a certain size range.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A car panel cutting and clamping device, comprising a conveying structure (2) and a cutting structure (3), wherein the conveying structure (2) is disposed in front of the cutting structure (3), the conveying structure (2) is used to convey the panel to be cut, and the cutting structure (3) is used to cut the conveyed panel, characterized in that: It also includes a support plate (1), a clamping structure (4), a clamping drive assembly (5), and a sliding assembly (6). There are two support plates (1), one of which has a support plate through groove (13). The two support plates (1) are connected at one end by a support connecting plate (14). The clamping structure (4) is located behind the cutting structure (3) and is used to clamp the cut sheet. The sliding assembly (6) is fixed on the upper end of the support plate (1). The conveying structure (2), the cutting structure (3), and the clamping structure (4) are respectively installed on the support plate (1) through the sliding assembly (6). The clamping drive assembly (5) is fixed at the bottom end of the support plate (1) with the through groove. The driving end of the clamping drive assembly (5) is connected to the clamping structure (4) through the through groove, driving the clamping structure (4) to move back and forth.

2. The apparatus according to claim 1, wherein: The sliding assembly (6) includes two main slide rails (11) and several main sliders (12) that are slidably mounted on the main slide rails (11). The two main slide rails (11) are symmetrically fixed to the upper ends of the two support plates (1). The bottom ends of the conveying structure (2), the cutting structure (3), and the clamping structure (4) are respectively fixed with main sliders (12). The main sliders (12) can move back and forth on the two main slide rails (11).

3. The apparatus according to claim 1 or 2, wherein: The clamping structure (4) includes a clamp (41), a clamp mounting frame (42), a clamping bracket (43), and a clamping bracket track (431). The clamping bracket track (431) is integrally formed and set at the top of the clamping bracket (43). The clamp mounting frame (42) is slidably mounted on the clamping bracket track (431) through a sliding groove set at its bottom end. The clamp (41) is fixed on the clamp mounting frame (42).

4. The apparatus according to claim 3, wherein: The clamping drive assembly (5) includes a motor (51), a lead screw (52), a lead screw support (53), a lead screw nut (54), and a lead screw nut connecting seat (55). The motor (51) and two lead screw support seats (53) are respectively fixed at the bottom of the support plate (1) with through groove. The lead screw (52) is rotatably mounted on the two lead screw support seats (53). One end of the lead screw (52) is connected to the drive end of the motor (51) through a coupling. The lead screw nut (54) is sleeved on the lead screw (52) and fixed on the lead screw nut connecting seat (55). The lead screw nut connecting seat (55) is fixedly connected to the side end of the clamping bracket (43). The motor (51) drives the lead screw (52) to rotate, and through the lead screw nut (54) and the lead screw nut connecting seat (55), the clamping bracket (43) moves horizontally back and forth on the main slide rail (11).

5. The apparatus according to claim 4, wherein: The cutting structure (3) includes a cutting bracket (31), a sliding column (32), a lower cutter mounting plate (33), an upper cutter mounting plate (34), a top mounting plate (35), an upper cutter cylinder (36), a cutter fixing seat (37), an upper cutter (38), and a lower cutter (39). The two sliding columns (32) are vertically fixed to the top of the cutting bracket (31). The upper cutter mounting plate (34) is mounted on the sliding column (32) through a sliding sleeve. The lower cutter mounting plate (33) is located below the upper cutter mounting plate (34). The top mounting plate (35) is fixed to the top of the two sliding columns (32). The upper cutter cylinder (36) is fixed on the top mounting plate (35), and its telescopic end is connected to the upper cutter mounting plate (34). The upper cutter (38) and the lower cutter (39) are fixed on the upper cutter mounting plate (34) and the lower cutter mounting plate (33) respectively through the cutter fixing seat (37).

6. The apparatus according to claim 5, wherein: The cutting structure (3) also includes a lower cutter cylinder (310), which is fixed at the bottom of the cutting bracket (31). The telescopic end of the lower cutter cylinder (310) is connected to the bottom of the lower cutter mounting plate (33), which is also mounted on the slide column (32) via a sliding sleeve.

7. The apparatus according to claim 6, wherein: The conveying structure (2) includes a conveying bracket (23), a conveying bracket slide rail (231), a side plate support plate (24), a limiting plate (25), and a limiting mounting bracket (26). The conveying bracket slide rail (231) is integrally formed and set at the top of the conveying bracket (23). The limiting mounting bracket (26) is installed on the conveying bracket slide rail (231) through its bottom groove. The side plate support plate (24) is fixed to the inner side of the bottom end of the limiting mounting bracket (26). The limiting plate (25) is fixed to the upper front end of the side plate support plate (24). A plate channel is formed between the limiting plate (25) and the side plate support plate (24).

8. The apparatus according to claim 7, wherein: The conveying structure (2) further includes an adjusting cylinder mounting platform (21) and an adjusting cylinder (22). The adjusting cylinder (22) is fixed on the upper end of the adjusting cylinder mounting platform (21), and the telescopic end of the adjusting cylinder (22) is connected to the conveying bracket (23).

9. The apparatus according to claim 8, wherein: The conveying structure (2) further includes a fixed cylinder (27) and a fixed plate (28). The fixed cylinder (27) is fixed on the front side of the limiting mounting bracket (26), and the fixed plate (28) is fixed on the telescopic end of the fixed cylinder (27).

10. The apparatus according to claim 9, wherein: The conveying structure (2) further includes a middle plate support plate (29), a limiting mounting rod (210), a limiting post (211), a limiting seat (212), a limiting wheel frame (213), and a limiting wheel (214). The two limiting posts (211) are symmetrically fixed at both ends of the conveying bracket (23). The limiting seat (212) is installed on the limiting post (211). The two ends of the limiting mounting rod (210) are fixed on the outside of the limiting seat (212). The top of the limiting wheel frame (213) is fixed at the center of the limiting mounting rod (210). The limiting wheel (214) is rotatably installed on the limiting wheel frame (213). The middle plate support plate (29) is fixed on the conveying bracket slide rail (231). The middle plate support plate (29) is located below the limiting wheel (214).

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