Auxiliary cutting equipment for packaging material production

By designing an auxiliary cutting equipment for packaging material production, using the multi-directional cutting method of the slide plate and the cutting head, combined with the lifting mechanism of the meshing plate and the rotating gear, the problem of misalignment or offset of the packaging material cutting in the prior art is solved, and a more efficient and accurate cutting effect is achieved.

CN119704274AInactive Publication Date: 2025-03-28FOSHAN SHUNDE HONGRONG PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202411936166.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing auxiliary cutting equipment for packaging material production can easily lead to misalignment or offset of the packaging material cutting during the cutting process, resulting in the finished product not meeting the requirements and reducing the cutting efficiency.

Method used

An auxiliary cutting equipment is designed, including a cutting machine tool, a cutting mechanism and a lift mechanism. The cutting mechanism realizes multi-directional cutting of the packaging material through the cooperation of the slide plate and the cutting head; the lifting mechanism drives the baffle to lift and lower the sealing head to ensure the stable positioning and clamping of the packaging material by the cooperation of the meshing plate, rotating gear and meshing gear.

Benefits of technology

It effectively avoids cutting misalignment or offset problems, improves the accuracy and working efficiency of cutting packaging materials, especially in multi-directional cutting, which can maintain the stable state of the packaging materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of packaging material production, in particular to auxiliary cutting equipment for packaging material production. Comprising a cutting machine tool, a cutting mechanism and a lifting mechanism, the cutting machine tool comprises a conveying belt, the conveying belt drives packaging materials, the cutting mechanism comprises a guide rail, and the upper surface of the guide rail is slidably connected with a second sliding plate; the guide rail slides left and right on the upper surface of the conveying belt through a first sliding plate to be adjusted, the cutting head slides front and back on the surface of the guide rail through a second sliding plate to be adjusted, the lifting mechanism comprises a baffle and a meshing plate, grooves are formed in the two sides in the guide rail, and the baffle is clamped in the grooves in a lifting mode. And under the meshing action of meshing teeth, the lifting plate effectively drives the baffle to conduct lifting adjustment, the baffle descends to the upper surface of the conveying belt, the blocking effect on the packaging materials conveyed on the surface of the conveying belt can be achieved, and the cutting head can conveniently conduct positioning cutting treatment on the packaging materials.
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Description

Technical Field

[0001] The invention relates to the technical field of packaging material production, in particular to an auxiliary cutting device used for packaging material production. Background Art

[0002] With the rapid development of modern industry, packaging materials are increasingly used in various fields. From food, medicine to electronic products, daily necessities, etc., packaging materials not only protect products, but also play an important role in the storage, transportation and sales of products. In order to meet the packaging needs of different products, the types and forms of packaging materials are becoming more and more diverse, such as packaging materials made of paper, plastic, metal, glass and other materials, as well as packaging products of various shapes and sizes.

[0003] Currently, most of the auxiliary cutting equipment used in the production of packaging materials directly clamps and fixes the packaging materials at a specific position and performs cutting operations on them. During the cutting process of the packaging materials, the packaging materials always keep moving on the surface of the conveyor belt, which can easily lead to problems such as misalignment or offset in cutting of the packaging materials, resulting in the cut products not meeting the requirements, thereby reducing the work efficiency of packaging material cutting.

[0004] Therefore, there is an urgent need for an auxiliary cutting device for packaging material production to solve the existing technical problems. Summary of the invention

[0005] The object of the present invention is to provide an auxiliary cutting device for packaging material production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention aims to provide an auxiliary cutting equipment for the production of packaging materials, including a cutting machine tool, a cutting mechanism and a lifting mechanism. The cutting machine tool includes a conveyor belt, and the conveyor belt transmits packaging materials. The cutting mechanism includes a guide rail, and a slide plate 2 is slidably connected to the upper surface of the guide rail. A cutting head is arranged on one side of the surface of the slide plate 2, and a slide plate 1 is slidably connected to the lower surface of the guide rail. The guide rail is slidably adjusted on both sides of the upper surface of the conveyor belt by slide plate 1, and the cutting head is slidably adjusted back and forth on the surface of the guide rail by slide plate 2. The lifting mechanism includes a baffle and an engaging plate. Grooves are provided on both sides of the guide rail, and the baffle is lifted and clamped in the groove.

[0007] As a further improvement of the technical solution, the cutting machine tool includes a support plate, a base is fixedly installed on one side of the support plate surface, and a conveyor belt is connected to the upper surface of the base.

[0008] As a further improvement of the present technical solution, skateboard one is slidably connected to the upper surface of the support plate, a connecting piece is installed on one side of the surface of skateboard one, a chain is connected to the surface of the connecting piece, and a supporting piece is movably connected to the lower surface of the chain; skateboard two is slidably connected to the upper surface of the guide rail, a driving assembly is installed on the upper surface of skateboard two, a fixing piece is connected to one side of the surface of the driving assembly, and a cutting head is installed on the lower surface of the fixing piece.

[0009] As a further improvement of the present technical solution, the lifting mechanism includes a rotating gear, a meshing gear is meshed on one side of the rotating gear surface, a lifting plate is meshed on one side of the meshing gear surface, a baffle is connected to the lower surface of the lifting plate, a socket is clamped on the outer surface of the baffle, meshing plates are installed on both sides of the cutting head surface, a limiting rotating rod is movably installed at the center position of the upper surface of the lifting plate, a clamping block is arranged on the lower surface of the lifting plate, and a clamping rod is connected to one side of the lower surface of the meshing plate.

[0010] As a further improvement of the present technical solution, meshing teeth are arranged on one side of the surface of the meshing plate, and the meshing plate slides back and forth on the surface of the guide rail through the cutting head and meshes with the surface of the rotating gear, thereby driving the rotating gear and the meshing gear to rotate, so that the lifting plate is lifted and lowered inside the guide rail, and the baffle is driven to descend to the upper surface of the conveyor belt, and the meshing action of the meshing plate, the rotating gear and the meshing gear is utilized to drive the lifting plate and the baffle to be adjusted in height, so that the baffle is effectively pressed against the upper surface of the conveyor belt, thereby blocking the packaging materials transmitted on the surface of the conveyor belt, and allowing the cutting head to perform cutting operations on the packaging materials with a certain stability, thereby avoiding the problem of cutting misalignment or offset during the cutting process, thereby improving the accuracy of cutting the packaging materials, and at the same time, when cutting the packaging materials in multiple directions, the packaging materials can be clamped and tightened, thereby ensuring that the multi-directional cutting process of the packaging materials remains stable, thereby improving the work efficiency of cutting the packaging materials.

[0011] As a further improvement of the present technical solution, slots are provided at both ends of the inner bottom of the guide rail, the slots and the baffles correspond vertically, and the baffles are lifted and lowered on the slot surface through the holder to contact the packaging material transmitted on the upper surface of the conveyor belt. When the cutting head returns to the center position of the guide rail surface, the baffles retract into the inside of the guide rail and separate from the surface of the packaging material, thereby allowing the packaging material to be normally transmitted on the conveyor belt surface and performing a linear cutting process on the packaging material, thereby achieving multi-directional cutting of the packaging material and effectively improving the work efficiency of cutting the packaging material.

[0012] As a further improvement of the present technical solution, the meshing gears are distributed on one side of the rotating gear surface. The rotating gear rotates to drive the meshing gears to mesh and rotate, and the lifting plate is synchronously driven to lift and adjust through the meshing teeth. Since the baffle plate and the lifting plate are connected, the baffle plate can be lifted and lowered on the slot surface.

[0013] As a further improvement of the present technical solution, the clamping rod moves on the lower surface of the guide rail through the engaging plate. When the lifting plate engages with the rotating gear through the engaging plate and descends to the upper surface of the conveyor belt, the clamping rod and the clamping block are correspondingly engaged and generate thrust on the clamping block, so that the lifting plate is rotated and adjusted on the upper surface of the conveyor belt through the limiting rotating rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The auxiliary cutting equipment used for the production of packaging materials drives the cutting head to slide back and forth on the surface of the guide rail through the second slide plate. At the same time, the meshing plate and the rotating gear are meshed. Under the meshing action of the teeth, the lifting plate effectively drives the baffle to be raised and lowered, so that the baffle is lowered to the upper surface of the conveyor belt, which can block the packaging materials transmitted on the surface of the conveyor belt, making it easier for the cutting head to position and cut the packaging materials. Conversely, after the cutting head returns to the center position of the guide rail, the meshing plate and the rotating gear are meshed, so that the baffle is retracted back into the guide rail, effectively allowing the packaging materials to be transmitted on the surface of the conveyor belt.

[0016] 2. The auxiliary cutting equipment used for the production of packaging materials is lowered to the upper surface of the conveyor belt through the lifting plate, clamps and fixes the packaging materials, and cuts the packaging materials with the cutting head. During the cutting process, the clamping rod is engaged with the clamping block and generates thrust on the clamping block. Since the upper surface of the lifting plate is connected by the rotation and lifting of the limit rotating rod, the lifting plate can be driven to turn the packaging materials cut into small sizes, effectively separating the packaging materials cut into small sizes. When the lifting plate is raised again, the packaging materials cut into small sizes are released, thereby achieving the effect of separately processing the packaging materials cut into small sizes and the overall packaging materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the cutting machine tool of the present invention;

[0018] Figure 2 It is a schematic diagram of the cutting mechanism structure of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 It is a schematic diagram of the lifting mechanism structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the connection structure of the rotating gear, meshing gear, lifting plate, baffle plate and meshing plate of the present invention;

[0022] Figure 6 It is a schematic diagram of the connection structure of the meshing gear and the baffle of the present invention;

[0023] Figure 7 It is a schematic diagram of the connection structure between the lifting plate and the limit rotating rod of the present invention;

[0024] Figure 8 It is a schematic diagram of the movement of the meshing gears and the baffle of the present invention.

[0025] The meaning of each number in the figure is:

[0026] 100. cutting machine tool; 101. support plate; 102. base; 103. conveyor belt;

[0027] 200, cutting mechanism; 201, guide rail; 202, slide plate 1; 203, connecting member; 204, chain; 205, supporting member; 206, slide plate 2; 207, driving assembly; 208, fixing member; 209, cutting head;

[0028] 400, lifting mechanism; 401, rotating gear; 402, meshing gear; 403, lifting plate; 404, baffle; 405, holder; 406, meshing plate; 407, limit rotating rod; 408, clamping block; 409, clamping rod. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 2 and Figure 4 As shown, the purpose of this embodiment is to provide an auxiliary cutting device for packaging material production, including a cutting machine 100, a cutting mechanism 200 and a lifting mechanism 400, the cutting machine 100 includes a conveyor belt 103, the conveyor belt 103 transmits packaging materials, the cutting mechanism 200 includes a guide rail 201, a slide plate 206 is slidably connected to the upper surface of the guide rail 201, a cutting head 209 is arranged on one side of the surface of the slide plate 206, a slide plate 202 is slidably connected to the lower surface of the guide rail 201, the guide rail 201 is adjusted to slide left and right on the upper surface of the conveyor belt 103 through the slide plate 202, the cutting head 209 is adjusted to slide back and forth on the surface of the guide rail 201 through the slide plate 206, the lifting mechanism 400 includes a baffle 404 and an engaging plate 406, grooves are provided on both sides of the guide rail 201, and the baffle 404 is lifted and clamped in the groove;

[0031] By placing the packaging material on the surface of the conveyor belt 103, the packaging material is transmitted to the lower surface of the cutting head 209 through the conveyor belt 103, and the set cutting head 209 performs a cutting operation on the packaging material. The set slide 1 202 allows the cutting head 209 to perform a center cutting operation on the packaging material. The set slide 206 drives the cutting head 209 to slide left and right on the upper surface of the conveyor belt 103, and performs a multi-directional cutting operation on the packaging material.

[0032] Therefore, based on the above structure, combined with Figure 1 The structure of the cutting machine 100 is further disclosed. The cutting machine 100 includes a support plate 101. A base 102 is fixedly mounted on one side of the surface of the support plate 101. A conveyor belt 103 is transmission-connected to the upper surface of the base 102.

[0033] Furthermore, the packaging material is transported by the operation of the conveyor belt 103 , and the cutting head 209 is used to perform a linear cutting operation on the packaging material on the surface of the conveyor belt 103 .

[0034] Based on the above structure, combined with Figure 2 As shown, the structure of the cutting mechanism 200 is further disclosed, the slide plate 202 is slidably connected to the upper surface of the support plate 101, a connecting member 203 is installed on one side of the surface of the slide plate 202, a chain 204 is connected to the surface of the connecting member 203, and a supporting member 205 is movably connected to the lower surface of the chain 204, the slide plate 206 is slidably connected to the upper surface of the guide rail 201, a driving component 207 is installed on the upper surface of the slide plate 206, a fixing member 208 is connected to one side of the surface of the driving component 207, and a cutting head 209 is installed on the lower surface of the fixing member 208;

[0035] Furthermore, the slide plate 1 202 can drive the guide rail 201 as a whole to slide left and right on the upper surface of the conveyor belt 103, so as to perform a linear cutting operation on the packaging material transported on the surface of the conveyor belt 103, and the slide plate 206 can drive the cutting head 209 to slide forward and backward on the upper surface of the guide rail 201, so as to perform an offset cutting operation on the packaging material transported on the surface of the conveyor belt 103;

[0036] The improvement lies in that the position of the cutting head 209 can be flexibly adjusted by using the slide plate 1 202 and the slide plate 206, so that the cutting method of the packaging material is more comprehensive, and the working efficiency of the packaging material cutting is effectively improved.

[0037] Based on the above structure, combined with Figure 3-Figure 8As shown, the structure of the lifting mechanism 400 is further disclosed. The lifting mechanism 400 includes a rotating gear 401, meshing gears 402 are meshed on both sides of the surface of the rotating gear 401, a lifting plate 403 is meshed on one side of the surface of the meshing gear 402, a baffle 404 is connected to the lower surface of the lifting plate 403, a clamping seat 405 is clamped on the outer surface of the baffle 404, meshing plates 406 are installed on both sides of the surface of the cutting head 209, a limited rotation rod 407 is movably installed at the center position of the upper surface of the lifting plate 403, a clamping block 408 is arranged on the lower surface of the lifting plate 403, and a clamping rod 409 is connected to one side of the lower surface of the meshing plate 406;

[0038] Furthermore, the cutting head 209 slides back and forth on the surface of the guide rail 201, and the meshing plate 406 is meshed with the surface of the rotating gear 401. Since the rotating gear 401 is meshed with the meshing gear 402, the meshing gear 402 is driven to rotate by the rotating gear 401. Since the upper surface of the lifting plate 403 is telescopically connected by the limiting rotating rod 407, the lifting plate 403 can be raised and lowered on one side of the meshing gear 402, so that the baffle plate 404 can be raised and lowered on the surface of the card seat 405, and the baffle plate 404 is pressed against the surface of the conveyor belt 103 to block the packaging materials transmitted on the surface of the conveyor belt 103, so that the cutting head 209 can smoothly cut the packaging materials.

[0039] At the same time, during the cutting process, when the lifting plate 403 is lowered, the front end of the lifting plate 403 clamps the packaging material, and the clamping block 408 is arranged at the rear end of the lifting plate 403 and corresponds to the clamping rod 409 in parallel. Therefore, after the engaging plate 406 moves to one side of the lifting plate 403, the clamping rod 409 is engaged with the clamping block 408 and generates a thrust on the clamping block 408. Since the upper surface of the lifting plate 403 is connected by the limit rotating rod 407 to rotate and lift, the lifting plate 403 can be driven to turn the packaging material cut into small sizes, effectively separating the packaging material cut into small sizes. After the lifting plate 403 is raised again, the packaging material cut into small sizes is released, so as to achieve the effect of separately processing the packaging material cut into small sizes and the overall packaging material.

[0040] On the contrary, when the cutting head 209 returns to the center of the guide rail 201, the meshing plate 406 is meshed with the rotating gear 401 again, and the baffle 404 is separated from the upper surface of the packaging material transmitted on the conveyor belt 103 by the meshing effect, so that the packaging material can be normally transmitted on the conveyor belt 103, so as to facilitate the subsequent normal straight-line cutting of the packaging material;

[0041] The improvement lies in: utilizing the meshing action of the meshing plate 406, the rotating gear 401 and the meshing gear 402 to drive the lifting plate 403 and the baffle 404 to adjust their height, so that the baffle 404 is effectively pressed against the upper surface of the conveyor belt 103, thereby blocking the packaging materials transmitted on the surface of the conveyor belt 103, and allowing the cutting head 209 to perform a cutting operation on the packaging materials with a certain stability, thereby avoiding the problem of cutting misalignment or offset during the cutting process, thereby improving the accuracy of cutting the packaging materials, and at the same time, when cutting the packaging materials in multiple directions, it can clamp and tighten the packaging materials, thereby ensuring that the multi-directional cutting process of the packaging materials remains stable, thereby improving the work efficiency of cutting the packaging materials.

[0042] In summary, the working principle of this scheme is as follows: the packaging material is placed on the upper surface of the conveyor belt 103 as a whole, and the conveyor belt 103 is used to transmit the packaging material to the lower surface of the cutting head 209. The slide plate 202 can drive the cutting head 209 to slide linearly left and right on the surface of the conveyor belt 103, and perform linear cutting on the packaging material. The slide plate 206 drives the cutting head 209 to slide back and forth on the surface of the guide rail 201. At the same time, the meshing plate 406 and the rotating gear 401 are meshed, driving the rotating gear 401 and the meshing gear 402 to rotate. Under the meshing action of the meshing teeth, the lifting plate 403 effectively drives the baffle 404 to be lifted and adjusted, so that the baffle 404 is lowered to the upper surface of the conveyor belt 103, which can block the packaging material transmitted on the surface of the conveyor belt 103, making it convenient for the cutting head 209 to perform front and rear position cutting on the packaging material, and in the process of front and rear cutting of the packaging material, the packaging material as a whole is kept in a stable state. When the cutting head 209 returns to the center position of the surface of the guide rail 201, the baffle 404 retracts to The inside of the guide rail 201 is separated from the surface of the packaging material, so that the packaging material can be normally transmitted on the surface of the conveyor belt 103, and the packaging material is cut in a straight line, so as to achieve multi-directional cutting of the packaging material and effectively improve the working efficiency of cutting the packaging material. At the same time, during the cutting process, when the lifting plate 403 is lowered, the front end of the lifting plate 403 clamps the packaging material, and the clamping block 408 is arranged at the rear end of the lifting plate 403 and corresponds to the clamping rod 409 in parallel. Therefore, after the engaging plate 406 moves to one side of the lifting plate 403, the clamping rod 409 is engaged with the clamping block 408 and generates a thrust on the clamping block 408. Since the upper surface of the lifting plate 403 is connected by the limit rotating rod 407 for rotation and lifting, the lifting plate 403 can be driven to turn the packaging material cut into small sizes, effectively separating the packaging material cut into small sizes. After the lifting plate 403 is raised again, the packaging material cut into small sizes is released, so as to achieve the effect of separately processing the packaging material cut into small sizes and the overall packaging material.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary cutting device for packaging material production, characterized in that: The invention comprises a cutting machine tool (100), a cutting mechanism (200) and a lifting mechanism (400), wherein the cutting machine tool (100) comprises a conveyor belt (103), wherein the conveyor belt (103) transmits packaging materials, wherein the cutting mechanism (200) comprises a guide rail (201), wherein a second slide plate (206) is slidably connected to the upper surface of the guide rail (201), wherein a cutting head (209) is arranged on one side of the surface of the second slide plate (206), and wherein the lower surface of the guide rail (201) is provided with a plurality of guide rails (201) and a plurality of guide rails (201) ... A slide plate (202) is slidably connected, the guide rail (201) is slidably adjusted on both sides of the upper surface of the conveyor belt (103) by the slide plate (202), the cutting head (209) is slidably adjusted back and forth on the surface of the guide rail (201) by the slide plate (206), the lifting mechanism (400) includes a baffle (404) and an engaging plate (406), grooves are provided on both sides of the inside of the guide rail (201), and the baffle (404) is lifted and clamped in the groove.

2. The auxiliary cutting device for packaging material production according to claim 1, characterized in that: The cutting machine tool (100) comprises a support plate (101), a base (102) is fixedly mounted on one side of the surface of the support plate (101), and the conveyor belt (103) is drivingly connected to the upper surface of the base (102).

3. The auxiliary cutting device for packaging material production according to claim 2, characterized in that: The slide plate 1 (202) is slidably connected to the upper surface of the support plate (101); a connecting piece (203) is installed on one side of the surface of the slide plate 1 (202); a chain (204) is connected to the surface of the connecting piece (203); a support piece (205) is movably engaged on the lower surface of the chain (204); the slide plate 2 (206) is slidably connected to the upper surface of the guide rail (201); a driving component (207) is installed on the upper surface of the slide plate 2 (206); a fixing piece (208) is connected to one side of the surface of the driving component (207); and the cutting head (209) is installed on the lower surface of the fixing piece (208).

4. The auxiliary cutting device for packaging material production according to claim 3, characterized in that: The lifting mechanism (400) comprises a rotating gear (401), one side of the surface of the rotating gear (401) is meshed with a meshing gear (402), one side of the surface of the meshing gear (402) is meshed with a lifting plate (403), the baffle (404) is connected to the lower surface of the lifting plate (403), the outer surface of the baffle (404) is clamped with a holder (405), the surface of the cutting head (209) is installed with meshing plates (406) on both sides, a limited rotation rod (407) is movably installed at the center position of the upper surface of the lifting plate (403), a clamping block (408) is arranged on the lower surface of the lifting plate (403), and one side of the lower surface of the meshing plate (406) is connected with a clamping rod (409).

5. The auxiliary cutting device for packaging material production according to claim 4, characterized in that: One side of the surface of the meshing plate (406) is provided with meshing teeth. The meshing plate (406) slides on both sides of the surface of the guide rail (201) through the cutting head (209) and meshes with the surface of the rotating gear (401), driving the rotating gear (401) and the meshing gear (402) to rotate, so that the lifting plate (403) is raised and lowered inside the guide rail (201) and drives the baffle plate (404) to descend to the upper surface of the conveyor belt (103).

6. The auxiliary cutting device for packaging material production according to claim 5, characterized in that: The guide rail (201) has slots at both ends of the inner bottom, the slots and the baffle (404) correspond vertically, and the baffle (404) moves up and down on the slot surface through the holder (405) to contact the packaging material transported on the upper surface of the conveyor belt (103).

7. The auxiliary cutting device for packaging material production according to claim 6, characterized in that: The meshing gear (402) is distributed on one side of the surface of the rotating gear (401). When the rotating gear (401) rotates, the meshing gear (402) is driven to mesh and rotate, and the lifting plate (403) is driven to be raised and lowered synchronously through the meshing teeth. Since the baffle plate (404) and the lifting plate (403) are connected, the baffle plate (404) is allowed to move up and down on the surface of the slot.

8. The auxiliary cutting device for packaging material production according to claim 4, characterized in that: The clamping rod (409) moves on the lower surface of the guide rail (201) through the engaging plate (406). When the lifting plate (403) engages with the rotating gear (401) through the engaging plate (406) and descends to the upper surface of the conveyor belt (103), the clamping rod (409) and the clamping block (408) are correspondingly engaged and generate thrust on the clamping block (408), so that the lifting plate (403) can be rotated and adjusted on the upper surface of the conveyor belt (103) through the limiting rotating rod (407).