Recovery treatment device for excess materials for cutting preparation of refrigerator liner

Abstract

The invention relates to an excess material recycling device for refrigerator liner cutting preparation, and belongs to the technical field of refrigerator liner cutting excess material recycling treatment.The excess material recycling device comprises a cutting table, a mechanical arm is arranged at the top of the cutting table, a cutting head is arranged at one end of the mechanical arm, and a containing frame is fixedly connected to the top of the cutting table; the outer wall of the placing frame is rotationally connected with a rotating plate, and the outer wall of the rotating plate is slidably connected with a clamping plate. Through the arrangement of a first negative pressure pipe, a second negative pressure pipe and a material falling groove, when the refrigerator inner container is cut and recycled, large waste materials can automatically fall into a smashing box through the arrangement of the material falling groove, and when small waste materials are recycled, the waste materials can be recycled through the operation of a negative pressure pump, so that the waste materials can be recycled. Waste is sucked through the first negative pressure pipe and the second negative pressure pipe, small waste is also sucked into the crushing box to be synchronously crushed, and the effect of multi-path collection of the waste of the refrigerator inner container is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recycling processing of cutting leftover materials of refrigerator inner tank, in particular to a leftover material recycling processing device for cutting preparation of refrigerator inner tank. BACKGROUND

[0002] The refrigerator inner tank plate is an important component in refrigerator manufacturing, directly affecting the heat preservation effect and service life of the refrigerator. High-quality inner tank plates need to have good cold resistance, heat resistance and corrosion resistance. After the refrigerator inner tank is formed, the edges of the refrigerator inner tank need to be cut. After cutting, subsequent procedures such as hole opening are performed. When cutting the refrigerator inner tank, a leftover material recycling processing device is needed to process the leftover materials generated during cutting of the inner tank.

[0003] In the prior art, a refrigerator inner tank trimming device with publication number CN221716992U includes a rack, a conveying mechanism is provided at the bottom of the rack, a positioning mechanism is provided at the top of the rack to lift and position the refrigerator inner tank, a lifting assembly is also provided on the rack, the lifting assembly is connected with a cutting assembly, the cutting assembly includes a plurality of cutters, and the plurality of cutters form a rectangular frame structure. In this utility model, the refrigerator inner tank is conveyed to a specified position by the conveying mechanism, the positioning assembly grabs the refrigerator inner tank, lifts the refrigerator inner tank to make it separate from the conveying mechanism, and positions it through the positioning assembly to make it located at a specified cutting position. Then, the four edges of the refrigerator inner tank are simultaneously cut by the cutting device, improving the cutting efficiency and achieving accurate positioning of the refrigerator inner tank through the positioning assembly, with high cutting precision.

[0004] However, the existing leftover material recycling processing device can recycle the leftover materials generated during cutting, but the cutting device needs to be stopped before the leftover materials can be collected. The leftover materials are not automatically dropped into the processing device during the cutting process of the refrigerator inner tank, and the high-efficiency recycling effect of the leftover materials through multiple negative pressure pipes is not good. At the same time, when recycling and processing the leftover materials, the synchronous driving effect of the crushing roller and the spiral roller by a single driving source is not good, which reduces the energy consumption rate of the processing device. In addition, when the crushing roller is used to crush the leftover materials, the mechanical energy conversion and utilization effect of the crushing roller is not good, which can easily cause the surface impurities of the cutting table to be adsorbed, affecting the effect of the negative pressure pipe on the adsorption and collection of the debris, and does not meet the use requirements of people. Therefore, we propose a leftover material recycling processing device for cutting preparation of refrigerator inner tank. SUMMARY

[0005] To solve the problems mentioned in the above background, the application provides a waste recycling device for cutting and preparing a refrigerator liner to solve the problems that the waste is automatically dropped into the processing device, and the high-efficiency recycling effect of the waste is poor through multiple negative pressure pipes, and the synchronous driving effect of the crushing roller and the spiral roller through a single driving source is poor when the waste is crushed and recycled, which reduces the energy consumption rate of the processing device, and the mechanical energy conversion and utilization effect of the crushing roller is poor when the waste is crushed by the crushing roller, which easily causes the surface impurities of the cutting table to be adsorbed, affecting the adsorption effect of the negative pressure pipe on the debris.

[0006] To achieve the above technical purposes, the technical scheme adopted by the application is as follows: A waste recycling device for cutting and preparing a refrigerator liner, comprising a cutting table, a mechanical arm is arranged on the top of the cutting table, a cutting head is arranged at one end of the mechanical arm, a placing rack is fixedly connected to the top of the cutting table, a rotating plate is rotatably connected to the outer wall of the placing rack, and a clamping plate is slidably connected to the outer wall of the rotating plate. A dropping chute is arranged below the cutting head on the top of the cutting table, a crushing box is fixedly connected below the dropping chute on the bottom of the cutting table, a spiral conveying cylinder is fixedly connected to the bottom of the crushing box, a first negative pressure pipe is rotatably connected to the top of the cutting table, a first rotary joint is rotatably connected to the end of the first negative pressure pipe, a conveying pipe fixedly connected to the outer wall of the crushing box is fixedly connected to one end of the first rotary joint, and a second negative pressure pipe is rotatably connected to the inner side wall of the dropping chute. A control box is fixedly connected to the outer wall of the crushing box, a first servo motor is arranged on the outer wall of the control box, a belt pulley set is fixedly connected to the output end of the first servo motor, one set of rotating centers of the belt pulley set are fixedly connected to a first gear rotatably connected to the inner side wall of the control box, the rotating center of the first gear is fixedly connected to a crushing roller rotatably connected to the inner side wall of the crushing box, the rotating center of the other set of the belt pulley set is fixedly connected to a connecting shaft, one end of the connecting shaft is fixedly connected to a spiral roller rotatably connected to the inner side wall of the spiral conveying cylinder, when the refrigerator liner is cut and recycled, the larger waste is automatically dropped into the crushing box through the opening of the dropping chute, and when the smaller waste is recycled, the waste is sucked through the first negative pressure pipe and the second negative pressure pipe by the operation of the negative pressure pump, so that the smaller waste is also sucked into the crushing box for synchronous crushing operation, and the effect of collecting the waste of the refrigerator liner in multiple paths is improved.

[0007] Preferably, the crushing roller is provided with two groups, the rotating directions of the two groups of crushing rollers are opposite, the crushing rollers are arranged directly below the material falling groove, and under the action of a single driving source, the crushing roller in the crushing box can be continuously rotated, meanwhile, the spiral roller is driven to continuously convey along the inside of the spiral conveying cylinder through the connection of the connecting shaft, so that the waste material is continuously crushed and then falls into the conveying cylinder for continuous extrusion conveying, the utilization rate of energy of the recycling device is improved, and the energy loss rate of the device is reduced.

[0008] Preferably, the outer wall of the first gear is engaged with a second gear which is rotationally connected with the inner wall of the control box, the rotation center of the second gear is fixedly connected with a first bevel gear set, the outer wall of the crushing box is fixedly connected with a fixed cylinder, the outer wall of the first bevel gear set is fixedly connected with a connecting fan blade located in the inside of the fixed cylinder, in order to improve the effect of multifunctional conversion of mechanical energy of the continuous rotation of the crushing roller and achieve the effect of blowing, loosening and collecting the dust adhered to the surface of the cutting table, the rotation of the first gear drives the rotation of the first bevel gear set through the connection of the second gear, the rotation of the first bevel gear set drives the rotation of the connecting fan blade, the gas is blown out through the air blowing pipe through the connection of the air blowing pipe, and the effect of blowing, loosening and collecting the impurities on the cutting table is achieved.

[0009] Preferably, the end of the fixed cylinder is fixedly connected with an air conveying pipe, one end of the air conveying pipe is fixedly connected with a second rotary joint, and the outer wall of the second rotary joint is rotationally connected with an air blowing pipe which is rotationally connected with the outer wall of the placing rack.

[0010] Preferably, the end of the conveying pipe is connected with the outer wall of the crushing box through a negative pressure pump, and the first negative pressure pipe is horizontally distributed and arranged above the material falling groove.

[0011] Preferably, the end of the second negative pressure pipe is rotationally connected with a third rotary joint, and one end of the third rotary joint is fixedly connected with a connecting pipe which is fixedly connected with the outer wall of the crushing box.

[0012] Preferably, the outer wall of the cutting table is provided with a second servo motor, the output end of the second servo motor is fixedly connected with a second bevel gear set, the outer wall of the second bevel gear set is fixedly connected with a worm, when it is necessary to adjust the use angle of the second negative pressure pipe, the second servo motor is turned on, the worm is driven to rotate through the rotation of the second bevel gear set, the rotation of the worm drives the rotation of the rotating shaft through the connection of the worm gear, the rotation of the rotating shaft drives the adjustment of the use angle of the second negative pressure pipe, and the effect of multidirectional negative pressure collection of small waste materials is achieved.

[0013] Preferably, the outer wall of the worm is engaged with a worm gear, and the rotation center of the worm gear is fixedly connected with a rotating shaft.

[0014] Preferably, one end of the rotating shaft is fixedly connected with the end of the second negative pressure pipe, and the second negative pressure pipe is one-to-one arranged with the worm wheel.

[0015] Preferably, the worm is provided with two groups, and the rotating directions of the two groups of worms are opposite.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The first negative pressure pipe, the second negative pressure pipe and the blanking groove provided in the present application can automatically drop larger waste into the crushing box through the opening of the blanking groove when cutting and recycling the refrigerator liner, and can also suck smaller waste into the crushing box for synchronous crushing operation through the operation of the negative pressure pump when recycling smaller waste, thereby improving the multi-path collection effect of the refrigerator liner waste.

[0017] 2. The belt pulley group provided in the present application can continuously rotate the crushing roller in the crushing box under the action of a single driving source, and can also drive the spiral roller to continuously convey along the inside of the spiral conveying cylinder through the connection of the connecting shaft, so that the waste after crushing can be continuously extruded and conveyed in the conveying cylinder, thereby improving the energy utilization rate of the recycling device and reducing the energy consumption rate of the device.

[0018] 3. The connecting fan blade provided in the present application can continuously crush the collected refrigerator liner waste through the crushing roller, in order to improve the multifunctional conversion and utilization effect of the mechanical energy of the continuously rotating crushing roller, and to achieve the effect of blowing, loosening and collecting the dust adhered to the surface of the cutting table. The rotation of the first gear drives the rotation of the first bevel gear set through the connection of the second gear, and the rotation of the first bevel gear set drives the rotation of the connecting fan blade through the connection of the gas conveying pipe, so that the gas is blown out through the blowing pipe, thereby achieving the effect of blowing, loosening and collecting the impurities on the cutting table.

[0019] 4. The worm wheel and the connecting shaft provided in the present application can adjust the use angle of the second negative pressure pipe by opening the second servo motor to drive the rotation of the worm through the rotation of the second bevel gear set, and the rotation of the worm drives the rotation of the rotating shaft through the connection of the worm wheel, and the rotation of the rotating shaft adjusts the use angle of the second negative pressure pipe, thereby achieving the effect of multi-directional negative pressure collection of smaller waste. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall side structure of the present application; Figure 3It is a schematic diagram of the overall rearview structure of the present application. Figure 4 It is a schematic diagram of the blanking groove position distribution structure of the present application. Figure 5 It is a schematic diagram of the first negative pressure pipe and blowing pipe position distribution structure of the present application. Figure 6 It is a schematic diagram of the crushing roller and spiral roller position distribution structure of the present application. Figure 7 It is a schematic diagram of the bevel gear set and connecting fan blade connection structure of the present application. Figure 8 It is a schematic diagram of the second negative pressure pipe and connecting pipe connection structure of the present application. Figure 9 It is a schematic diagram of the first rotary joint and second rotary joint position distribution structure of the present application.

[0021] The reference signs in the drawings are: 1, cutting table; 2, mechanical arm; 3, cutting head; 4, placing rack; 5, rotating plate; 6, clamping plate; 7, blanking groove; 8, crushing box; 9, spiral conveying cylinder; 10, first negative pressure pipe; 11, first rotary joint; 12, conveying pipe; 13, second negative pressure pipe; 14, control box; 15, first servo motor; 16, first gear; 17, crushing roller; 18, second gear; 19, pulley set; 20, first bevel gear set; 21, fixed cylinder; 22, connecting fan blade; 23, gas conveying pipe; 24, second rotary joint; 25, blowing pipe; 26, connecting shaft; 27, spiral roller; 28, second servo motor; 29, second bevel gear set; 30, worm; 31, worm gear; 32, rotating shaft; 33, third rotary joint; 34, connecting pipe. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purposes, the specific embodiments, structures, features and effects according to the present application are described in detail as follows in combination with the drawings and preferred embodiments.

[0023] Example 1 Please refer to Figures 1 to 9 The present embodiment provides a leftover recycling device for cutting and preparing a refrigerator liner, which comprises a cutting table 1, a mechanical arm 2 arranged on the top of the cutting table 1, a cutting head 3 arranged at one end of the mechanical arm 2, a placing rack 4 fixedly connected to the top of the cutting table 1, a rotating plate 5 rotatably connected to the outer wall of the placing rack 4, and a clamping plate 6 slidably connected to the outer wall of the rotating plate 5. The top of the cutting table 1 is provided with a blanking groove 7 below the cutting head 3, the bottom of the cutting table 1 is fixedly connected with a crushing box 8 below the blanking groove 7, the bottom of the crushing box 8 is fixedly connected with a spiral conveying cylinder 9, the top of the cutting table 1 is rotatably connected with a first negative pressure pipe 10, the end of the first negative pressure pipe 10 is rotatably connected with a first rotary joint 11, one end of the first rotary joint 11 is fixedly connected with a conveying pipe 12 fixedly connected with the outer wall of the crushing box 8, the inner side wall of the blanking groove 7 is rotatably connected with a second negative pressure pipe 13; The outer wall of the crushing box 8 is fixedly connected with a control box 14, the outer wall of the control box 14 is provided with a first servo motor 15, the output end of the first servo motor 15 is fixedly connected with a belt pulley set 19, one group of the belt pulley set 19 is fixedly connected with a first gear 16 rotatably connected with the inner side wall of the control box 14, the rotation center of the first gear 16 is fixedly connected with a crushing roller 17 rotatably connected with the inner side wall of the crushing box 8, the rotation center of the other group of the belt pulley set 19 is fixedly connected with a connecting shaft 26, one end of the connecting shaft 26 is fixedly connected with a spiral roller 27 rotatably connected with the inner side wall of the spiral conveying cylinder 9, when the refrigerator liner is cut and recycled, the larger waste is automatically dropped into the crushing box 8 through the opening of the blanking groove 7, and when the smaller waste is recycled, the waste is sucked into the crushing box 8 through the operation of the negative pressure pump, so that the smaller waste is also sucked into the crushing box 8 for synchronous crushing operation, improving the effect of multi-path collection of the refrigerator liner waste, when the collected refrigerator liner waste is continuously crushed by the crushing roller 17, in order to improve the effect of multifunctional conversion of the mechanical energy of the continuously rotating crushing roller 17, and to achieve the effect of blowing, loosening and collecting the dust adhered to the surface of the cutting table 1, the rotation of the first gear 16 drives the first bevel gear set 20 to rotate through the connection of the second gear 18, the rotation of the first bevel gear set 20 drives the connecting fan blade 22 to rotate through the connection of the gas conveying pipe 23, so that the gas is blown out through the air blowing pipe 25, achieving the effect of blowing, loosening and collecting the impurities on the cutting table 1.

[0024] As shown in Figure 6 The crushing roller 17 is provided with two groups, the rotation directions of the two groups of crushing rollers 17 are opposite, the crushing roller 17 is arranged directly below the blanking groove 7, which is beneficial to the crushing and processing of the collected liner waste through the arrangement of the two groups of crushing rollers 17 with opposite rotation directions, and under the action of a single driving source, the crushing roller 17 in the crushing box 8 can be continuously rotated, at the same time, the spiral roller 27 is driven to continuously convey along the inside of the spiral conveying cylinder 9 through the connection of the connecting shaft 26, so that the waste after crushing falls into the conveying cylinder for continuous extrusion conveying, achieving the effects of improving the energy utilization rate of the recycling device and reducing the energy consumption rate of the device.

[0025] As shown in Figure 6 andFigure 7 As shown in the figure, the outer wall of the first gear 16 is engaged with the second gear 18 which is rotationally connected with the inner side wall of the control box 14, the rotation center of the second gear 18 is fixedly connected with the first bevel gear set 20, the outer wall of the first bevel gear set 20 is fixedly connected with the fixed cylinder 21 inside which the connecting fan blade 22 is fixedly connected, which is conducive to the setting of the connecting fan blade 22 to achieve the effect of converting the mechanical energy generated by the second gear 18 into wind energy for use.

[0026] As shown in the figure, Figure 7 The end of the fixed cylinder 21 is fixedly connected with the gas conveying pipe 23, one end of the gas conveying pipe 23 is fixedly connected with the second rotary joint 24, the outer wall of the second rotary joint 24 is rotationally connected with the gas blowing pipe 25 which is rotationally connected with the outer wall of the placing rack 4, which is conducive to the setting of the gas conveying pipe 23 and the gas blowing pipe 25 to achieve the effect of loosening the impurities adsorbed on the surface of the cutting device.

[0027] As shown in the figure, Figure 4 And Figure 5 The end of the conveying pipe 12 is connected with the outer wall of the crushing box 8 through a negative pressure pump, the first negative pressure pipe 10 is horizontally distributed and is arranged above the material falling groove 7, which is conducive to the connection of the end of the conveying pipe 12 with the outer wall of the crushing box 8 through the negative pressure pump to achieve the effect of negative pressure adsorption of smaller inner liner scraps.

[0028] As shown in the figure, Figure 8 The end of the second negative pressure pipe 13 is rotationally connected with the third rotary joint 33, one end of the third rotary joint 33 is fixedly connected with the connecting pipe 34 which is fixedly connected with the outer wall of the crushing box 8, which is conducive to the setting of the connecting pipe 34 to achieve the effect of centralized recovery of waste materials collected by the multi-path negative pressure pipe.

[0029] As shown in the figure, Figure 4 The outer wall of the cutting table 1 is provided with the second servo motor 28, the output end of the second servo motor 28 is fixedly connected with the second bevel gear set 29, the outer wall of the second bevel gear set 29 is fixedly connected with the worm 30, which is conducive to the setting of the worm 30 to achieve the effect of convenient adjustment of the use angle of the second negative pressure pipe 13.

[0030] As shown in the figure, Figure 4 The outer wall of the worm 30 is engaged with the worm gear 31, the rotation center of the worm gear 31 is fixedly connected with the rotating shaft 32, which is conducive to the setting of the rotating shaft 32 at the rotation center of the worm gear 31 to achieve the effect of convenient adjustment of the use angle of the second negative pressure pipe 13.

[0031] As shown in the figure, Figure 4 And Figure 8As shown, one end of the rotating shaft 32 is fixedly connected with the end of the second negative pressure pipe 13, and the second negative pressure pipe 13 is one-to-one correspondingly arranged with the worm wheel 31, which is conducive to driving the relative turning motion of the second negative pressure pipe 13 through the one-to-one corresponding arrangement between the second negative pressure pipe 13 and the worm wheel 31. When it is necessary to adjust the use angle of the second negative pressure pipe 13, the second servo motor 28 is opened to drive the worm 30 to rotate through the rotation of the second bevel gear set 29. The rotation of the worm 30 drives the rotating shaft 32 to rotate through the connection of the worm wheel 31. The rotation of the rotating shaft 32 drives the use angle of the second negative pressure pipe 13 to adjust, thereby achieving the effect of collecting small waste materials in multiple directions.

[0032] As shown in Figure 4 The worm 30 is provided with two groups, and the rotation directions of the two groups of worms 30 are opposite, which is conducive to achieving the effect of driving the relative rotation of the two groups of worm wheels 31 through the arrangement of the two groups of worms 30 with opposite rotation directions.

[0033] Working principle: As shown in Figures 1-9 When the waste material recycling device is used, first, when the refrigerator liner is cut and recycled, the larger waste materials automatically fall into the crushing box 8 through the opening of the dropping chute 7. When the smaller waste materials are recycled, the waste materials are sucked into the crushing box 8 through the first negative pressure pipe 10 and the second negative pressure pipe 13 through the operation of the negative pressure pump, so that the smaller waste materials are also sucked into the crushing box 8 for synchronous crushing operation, thereby improving the effect of collecting waste materials of the refrigerator liner in multiple paths. Then, under the action of a single driving source, the crushing roller 17 in the crushing box 8 can be continuously rotated, and at the same time, the spiral roller 27 is continuously conveyed along the inside of the spiral conveying cylinder 9 through the connection of the connecting shaft 26, so that the waste materials after crushing fall into the conveying cylinder for continuous extrusion conveying, thereby improving the utilization rate of energy of the recycling device and reducing the energy consumption rate of the device. Then, in order to improve the effect of multifunctional conversion and utilization of the mechanical energy of the continuously rotating crushing roller 17, and to achieve the effect of blowing, loosening and collecting the dust adhered to the surface of the cutting table 1, the rotation of the first gear 16 drives the first bevel gear set 20 to rotate through the connection of the second gear 18. The rotation of the first bevel gear set 20 drives the connecting fan blade 22 to rotate through the connection of the air conveying pipe 23, so that the gas is blown out through the air blowing pipe 25, thereby achieving the effect of blowing, loosening and collecting the impurities on the cutting table 1. Finally, in need of adjusting the use angle of the second negative pressure pipe 13, the second servo motor 28 is opened to rotate the second bevel gear set 29, which drives the worm 30 to rotate, the rotation of the worm 30 drives the rotation of the worm wheel 31 through the connection, which drives the rotation of the rotating shaft 32, and the rotation of the rotating shaft 32 drives the adjustment of the use angle of the second negative pressure pipe 13, achieving the effect of multi-directional negative pressure collection of small waste materials.

[0034] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, and modification of the above embodiments, which does not depart from the technical solution of the present application, are still within the scope of the present application.

Claims

1. A waste material recycling device for cutting and preparing a refrigerator liner, comprising a cutting table (1), characterized in that: The top of the cutting table (1) is provided with a mechanical arm (2), one end of the mechanical arm (2) is provided with a cutting head (3), the top of the cutting table (1) is fixedly connected with a placing rack (4), the outer wall of the placing rack (4) is rotatably connected with a rotating plate (5), the outer wall of the rotating plate (5) is slidably connected with a clamping plate (6). The top of the cutting table (1) is provided with a mechanical arm (2), one end of the mechanical arm (2) is provided with a cutting head (3), the top of the cutting table (1) is fixedly connected with a placing rack (4), the outer wall of the placing rack (4) is rotatably connected with a rotating plate (5), the outer wall of the rotating plate (5) is slidably connected with a clamping plate (6). The top of the cutting table (1) is provided with a mechanical arm (2), one end of the mechanical arm (2) is provided with a cutting head (3), the top of the cutting table (1) is fixedly connected with a placing rack (4), the outer wall of the placing rack (4) is rotatably connected with a rotating plate (5), the outer wall of the rotating plate (5) is slidably connected with a clamping plate (6).

2. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 1, characterized in that: The outer wall of the first gear (16) is engaged with the second gear (18) rotatably connected with the inner side wall of the control box (14), the rotation center of the second gear (18) is fixedly connected with the first bevel gear set (20), the outer wall of the first bevel gear set (20) is fixedly connected with the connecting fan blade (22) located in the fixed cylinder (21).

3. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 1, characterized in that: The end of the fixed cylinder (21) is fixedly connected with the gas conveying pipe (23), one end of the gas conveying pipe (23) is fixedly connected with the second rotary joint (24), the outer wall of the second rotary joint (24) is rotatably connected with the air blowing pipe (25) rotatably connected with the outer wall of the placing rack (4).

4. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 3, characterized in that: The end of the conveying pipe (12) is connected with the outer wall of the crushing box (8) through a negative pressure pump, the first negative pressure pipe (10) is horizontally distributed, and the first negative pressure pipe (10) is arranged above the blanking groove (7).

5. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 1, characterized in that: ​ 6. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 1, characterized in that: The end of the second negative pressure pipe (13) is rotatably connected with a third rotary joint (33), one end of the third rotary joint (33) is fixedly connected with a connecting pipe (34) fixedly connected with the outer wall of the crushing box (8).

7. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 1, characterized in that: The outer wall of the cutting table (1) is provided with a second servo motor (28), the output end of the second servo motor (28) is fixedly connected with a second bevel gear set (29), and the outer wall of the second bevel gear set (29) is fixedly connected with a worm (30).

8. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 7, characterized in that: The outer wall of the worm (30) is engaged with a worm gear (31), and the rotation center of the worm gear (31) is fixedly connected with a rotating shaft (32).

9. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 8, characterized in that: One end of the rotating shaft (32) is fixedly connected with the end of the second negative pressure pipe (13), and the second negative pressure pipe (13) is correspondingly arranged between the worm gears (31).

10. The excess material recycling apparatus for cutting and preparing a refrigerator liner according to claim 7, characterized in that: The worm (30) is provided with two groups, and the rotating directions of the two groups of worm (30) are opposite.

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