Waste treatment device of hollow plate die-cutting machine

Abstract

The invention relates to the technical field of plastic recovery, in particular to a hollow plate die-cutting machine waste treatment device which comprises a heating device, a sealing piece is installed on the heating device, and the sealing piece is used for sucking plastic melt under negative pressure; a rotary mixing piece is mounted on the sealing piece; the rotary mixing piece is used for limiting the melting degree; a sampling shell part is fixedly mounted at the bottom of the heating device; a rotary sampling piece is mounted on the sampling shell piece; a sampling control piece is mounted on the sealing piece and is used for automatically controlling the rotary sampling piece to perform rotary sampling; by the adoption of the protruding blocks, it can be limited that when a worker discharges a hollow plate solution, it needs to be guaranteed that hollow plate waste is fully hot-melted, it is avoided that discharging work is directly conducted when the local hollow plate solution is not hot-melted, meanwhile, the structure can make it more convenient for the worker to judge the opportunity of discharging the hollow plate solution, and the working efficiency is improved. And equipment such as a granulator is prevented from being blocked by the hollow plate waste which is not hot-melted yet.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic recycling, in particular to a hollow plate die cutting machine waste treatment device. BACKGROUND

[0002] A large amount of corner waste will be generated after the die cutting of the hollow plate. The hollow plate is made of high molecular materials such as polypropylene and has good recyclable characteristics. If it is directly discarded, it will cause serious waste of resources and greatly increase the cost of raw materials for enterprises, which does not meet the concept of resource recycling in the development of the industry. Efficient recovery of die cutting waste can reduce raw material input and waste disposal costs, improve resource utilization, and be used to make products with lower requirements for plastic quality.

[0003] The current hollow plate die cutting machine waste treatment device usually uses a hot melting furnace for heat recovery. However, in actual heat recovery work, the raw materials are not uniformly mixed, and it is difficult for manual naked eye to judge the addition amount of hollow plate waste due to the large volume and low density of the waste, and it is difficult to control the heat melting time, which can easily cause insufficient heating, contain a large number of non-hot melting particles, and is not convenient for detecting the heat melting quality. Directly discharging the plastic melt that has not been hot melted will directly affect the quality of subsequent plastic recycling; at the same time, when the traditional hot melting furnace needs to sample and detect plastic parameters, manual sampling is usually used, the sampling standard is not uniform, and it is easy to forget to sample, which is not convenient for controlling automatic sampling of each batch and accurately testing the recycled plastic parameter situation. SUMMARY

[0004] The purpose of the present application is to provide a hollow plate die cutting machine waste treatment device to solve the problem of the current hollow plate die cutting machine waste treatment device that is difficult to control the heat melting time, which can easily cause insufficient heating and is not convenient for detecting the heat melting quality.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a hollow plate die cutting machine waste treatment device, comprising a heating device, a closure is installed on the heating device, the closure is used for negative pressure suction of plastic melt; a rotating mixing element is installed on the closure; the rotating mixing element is used to limit the melting degree; a sampling shell element is fixedly installed at the bottom of the heating device; a rotating sampling element is installed on the sampling shell element; a sampling control element is installed on the closure, and the sampling control element is used to automatically control the rotating sampling element to rotate and sample; the heating device comprises a heating tank and a support frame, the support frame is fixedly installed at the bottom of the heating tank, and a circle of supporting legs is arranged on the support frame; an electric heating pipe is arranged on the inner side of the heating tank.

[0006] Preferably, the heating device further comprises a discharge electromagnetic valve, the discharge electromagnetic valve is fixedly installed at the bottom of the heating tank, and the discharge electromagnetic valve is used to discharge the plastic melt.

[0007] Preferably, the closing part comprises: a closing electric push rod, a closing cover, a suction pipe, an isolation electric push rod and a closing switch, two closing electric push rods are fixedly installed on the support frame, and the output shafts of the two closing electric push rods are fixedly installed with the closing cover, and the closing cover is buckled on the heating tank; the top of the closing cover is fixedly installed with the suction pipe, and the suction pipe is externally connected with a vacuum pump; two isolation electric push rods are fixedly installed on the closing cover, and the output shafts of the two isolation electric push rods respectively pass through the closing cover; the closing switch is fixedly embedded on the closing cover, and the end of the closing switch protrudes outside the closing cover; the closing switch is electrically connected with the discharge electromagnetic valve.

[0008] Preferably, the rotating and mixing part comprises: a lifting mount, a rotary motor, a rotary rod and an isolation plate, the lifting mount is fixedly installed on the output shafts of the two isolation electric push rods; the lifting mount is fixedly installed with the rotary motor, and the output shaft of the rotary motor passes through the lifting mount; the output shaft of the rotary motor is fixedly installed with the rotary rod, and the rotary rod is rotatably sleeved on the lifting mount; the rotary rod passes through the closing cover; the bottom of the rotary rod is fixedly installed with the isolation plate; the isolation plate is slidably sleeved in the heating tank; the bottom of the isolation plate is provided with a ring of protruding plates; the isolation plate is provided with mesh holes.

[0009] Preferably, the rotating and mixing part further comprises: a pressing plate and a protruding block, the pressing plate is fixedly installed on the lifting mount through bolts; the pressing plate is located outside the closing switch; the pressing plate is of L-shaped structure; the bottom of the pressing plate is fixedly installed with the protruding block on the inner side, and the protruding block is used for pressing the closing switch.

[0010] Preferably, the sampling shell part comprises: a sealing shell, a positioning elastic sheet and a pushing bolt, the sealing shell is fixedly installed on the bottom of the heating tank; the sealing shell is communicated with the heating tank; the end of the positioning elastic sheet is fixedly installed on the sealing shell; the positioning elastic sheet is of arc-shaped structure; the positioning elastic sheet is of elastic steel sheet; the sealing shell is threadedly connected with the pushing bolt.

[0011] Preferably, the rotating and sampling part comprises: a rotary column, a sampling groove, a positioning disc and a one-way bearing, the rotary column is rotatably sleeved inside the sealing shell; the outer side of the rotary column is attached to the inner side of the sealing shell; the rotary column is provided with four sampling grooves; the end of the rotary column is fixedly installed with the positioning disc, and the positioning disc is rotatably attached to the outer side of the sealing shell; the positioning disc is provided with a ring of grooves; the positioning elastic sheet is elastically inserted into the groove on the positioning disc; the inner ring of the one-way bearing is fixedly installed on the positioning disc; when the positioning elastic sheet is elastically inserted into the groove on the positioning disc, the upper sampling groove is communicated with the inside of the heating tank; the front end of the pushing bolt is smaller in diameter than the width of the sampling groove.

[0012] Preferably, the rotating sampling member further comprises: an engaging gear fixedly sleeved on the outer ring of the one-way bearing.

[0013] Preferably, the sampling control member comprises: a control arm fixedly installed on the closed cover through bolts; and the control arm is slidingly inserted on the support frame.

[0014] Preferably, the sampling control member further comprises: a rack fixedly installed at the bottom of the control arm; and the rack is aligned with the engaging gear.

[0015] Compared with the prior art, the present application has the following beneficial effects: The rotating mixing member cooperates with the closed member, which can facilitate the staff to assist in mixing and stirring the hollow plate waste when the hollow plate waste is heat-recovered, can promote uniform heat melting, and can promote negative pressure defoaming when the hollow plate waste is heated by the vacuum pump connected to the suction pipe. The solution bubble content can be reduced; the protruding block can limit the staff when discharging the hollow plate solution, and the hollow plate waste needs to be fully heat-melted to avoid local hollow plate solution from being directly discharged when it is not heat-melted, which can also facilitate the staff to judge the timing of discharging the hollow plate solution and prevent the unheat-melted hollow plate waste from causing the equipment such as the granulator to be blocked.

[0016] The sampling shell member and the rotating sampling member can facilitate sampling when the hollow plate waste is heat-melted, can facilitate sampling of each batch of heat-melted hollow plate waste, and can facilitate subsequent inspection of impurities, density and other parameters; the sampling control member can automatically control the rotation of the rotary column for sampling, which can avoid manual forgetting to sample, the sampling test block of the structure is more standard and has strong consistency, and the standard consistency is maintained during subsequent detection; the structure can automatically control sampling when the hollow plate waste is added for heat-melting treatment each time. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a hollow plate die-cutting machine waste treatment device of the present application. Figure 2 It is a sectional view of the internal structure of a hollow plate die-cutting machine waste treatment device of the present application. Figure 3 It is a schematic diagram of the bottom structure of a hollow plate die-cutting machine waste treatment device of the present application. Figure 4 It is a schematic diagram of the closed member structure of the present application. Figure 5 It is a schematic diagram of the rotating mixing member structure of the present application. Figure 6 It is a schematic diagram of the sampling shell member structure of the present application. Figure 3 It is an enlarged view of the middle B area structure. Figure 7 Figure is a schematic diagram of the sampling shell piece structure of the present application; Figure 8 Figure is a schematic diagram of the one-way bearing installation position of the present application; Figure 9 Figure is a sectional view of the protruding block installation position of the present application.

[0018] In the drawings, the components represented by the respective reference numerals are as follows: 1, heating device; 101, heating pot; 1011, support frame; 102, discharge electromagnetic valve; 2, closure; 201, closure electric push rod; 202, closure cover; 203, suction pipe; 204, isolation electric push rod; 205, closure switch; 3, rotary mixing piece; 301, lifting mounting frame; 302, slewing motor; 303, slewing rod; 304, isolation plate; 305, extrusion plate; 3051, protruding block; 4, sampling shell piece; 401, sealed shell; 402, positioning elastic sheet; 403, push bolt; 5, rotary sampling piece; 501, slewing column; 5011, sampling groove; 502, positioning disc; 503, one-way bearing; 504, meshing gear; 6, sampling control piece; 601, control arm; 602, rack. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0020] The present application provides a technical solution: as shown in Figures 1 to 9 A waste treatment device of a hollow plate die-cutting machine, comprising a heating device 1, a closure 2 is installed on the heating device 1, and the closure 2 is used for negative pressure suction of plastic melt; a rotary mixing piece 3 is installed on the closure 2; the rotary mixing piece 3 is used for limiting the degree of melting; a sampling shell piece 4 is fixedly installed at the bottom of the heating device 1; a rotary sampling piece 5 is installed on the sampling shell piece 4; a sampling control piece 6 is installed on the closure 2, and the sampling control piece 6 is used for automatically controlling the rotary sampling piece 5 to rotate and sample; the heating device 1 comprises a heating pot 101 and a support frame 1011, the support frame 1011 is fixedly installed at the bottom of the heating pot 101, and a circle of supporting legs is arranged on the support frame 1011; an electric heating pipe is arranged on the inner side of the heating pot 101.

[0021] The heating device 1 further comprises a discharge electromagnetic valve 102 fixedly installed at the bottom of the heating tank 101 and used for discharging plastic melt; the closing part 2 comprises a closing electric push rod 201, a closing cover 202, a suction pipe 203, an isolation electric push rod 204 and a closing switch 205, two closing electric push rods 201 are fixedly installed on the support frame 1011, and the output shafts of the two closing electric push rods 201 are fixedly installed with the closing cover 202, and the closing cover 202 is buckled on the heating tank 101; the suction pipe 203 is fixedly installed at the top of the closing cover 202, and the suction pipe 203 is connected with a vacuum pump; two isolation electric push rods 204 are fixedly installed on the closing cover 202, and the output shafts of the two isolation electric push rods 204 respectively pass through the closing cover 202; the closing switch 205 is fixedly embedded on the closing cover 202, and the end of the closing switch 205 protrudes outside the closing cover 202; the closing switch 205 is electrically connected with the discharge electromagnetic valve 102; the rotary mixing part 3 comprises a lifting mounting frame 301, a rotary motor 302, a rotary rod 303 and an isolation plate 304, and the lifting mounting frame 301 is fixedly installed on the output shafts of the two isolation electric push rods 204; the lifting mounting frame 301 is fixedly installed with the rotary motor 302, and the output shaft of the rotary motor 302 passes through the lifting mounting frame 301; the output shaft of the rotary motor 302 is fixedly installed with the rotary rod 303, and the rotary rod 303 is rotatably sleeved on the lifting mounting frame 301; the rotary rod 303 passes through the closing cover 202; the rotary rod 303 is fixedly installed with the isolation plate 304 at the bottom; the isolation plate 304 is slidably sleeved in the heating tank 101; a ring of protruding plates is arranged at the bottom of the isolation plate 304; a mesh hole is formed in the isolation plate 304; the rotary mixing part 3 cooperates with the closing part 2, which can facilitate the mixing and stirring of the hollow plate waste during the heat recovery of the hollow plate waste, can promote uniform heat melting, and can facilitate the isolation of the hollow plate solution from large-particle impurities or hollow plate waste that has not been heat melted, thereby improving the quality of the hollow plate waste melt discharge; at the same time, the structure cooperates with the vacuum pump connected with the suction pipe 203 to suck, which can promote negative pressure defoaming during heating of the hollow plate waste, can reduce the content of solution bubbles, and the structure control is simple; the lifting mounting frame 301 can be lifted by the isolation electric push rod 204, the isolation plate 304 can be lifted, the rotary rod 303 can be rotated by the rotary motor 302, the isolation plate 304 can be rotated, and the hollow plate solution can be stirred and mixed.

[0022] The rotating mixing piece 3 further comprises an extrusion plate 305 and a protruding block 3051, the extrusion plate 305 is fixedly installed on the lifting mounting frame 301 through bolts, the extrusion plate 305 is located outside the closed switch 205, the extrusion plate 305 is of L-shaped structure, the protruding block 3051 is fixedly installed on the inner side of the bottom of the extrusion plate 305, and the protruding block 3051 is used for extruding the closed switch 205, the protruding block 3051 can be used for further limiting the work personnel when discharging the hollow plate solution, and it is necessary to ensure that the hollow plate waste is fully hot-melted, so as to avoid that the local hollow plate solution cannot be hot-melted and then directly discharging work is performed, meanwhile, the structure can also be more convenient for the work personnel to judge the timing of discharging the hollow plate solution, so as to prevent the hollow plate waste which has not been hot-melted from causing the equipment such as the granulator to be blocked; the structure is simple and reliable, can effectively ensure the hot-melt quality, and is convenient for subsequent further processing of the hollow plate solution; firstly, the isolation plate 304 is driven to move upwards through the isolation electric push rod 204, once there is hollow plate waste which has not been hot-melted above the isolation plate 304, the isolation plate 304 cannot move to the top of the heating tank 101 under the stop of the hollow plate waste, and correspondingly, the extrusion plate 305 cannot be fully moved upwards to drive the protruding block 3051 to extrude the closed switch 205, and the discharging electromagnetic valve 102 cannot be opened.

[0023] The sampling shell part 4 comprises a sealing shell 401, a positioning elastic sheet 402 and a push bolt 403, the sealing shell 401 is fixedly installed at the bottom of the heating tank 101; the sealing shell 401 is communicated with the heating tank 101; the end of the positioning elastic sheet 402 is fixedly installed on the sealing shell 401; the positioning elastic sheet 402 is in an arc structure; the positioning elastic sheet 402 is an elastic steel sheet; the push bolt 403 is threadedly connected on the sealing shell 401; the rotating sampling part 5 comprises a rotating column 501, a sampling groove 5011, a positioning disc 502 and a one-way bearing 503, the rotating column 501 is rotatably sleeved in the sealing shell 401; the outer side of the rotating column 501 is attached to the inner side of the sealing shell 401; four sampling grooves 5011 are formed in the rotating column 501; the positioning disc 502 is fixedly installed at the end of the rotating column 501, and the positioning disc 502 is rotatably attached to the outer side of the sealing shell 401; a groove is formed in the positioning disc 502; the positioning elastic sheet 402 is elastically inserted into the groove in the positioning disc 502; the inner ring of the one-way bearing 503 is fixedly installed on the positioning disc 502; when the positioning elastic sheet 402 is elastically inserted into the groove in the positioning disc 502, the upper sampling groove 5011 is communicated with the inside of the heating tank 101; the diameter of the front end of the push bolt 403 is smaller than the width of the sampling groove 5011; the rotating sampling part 5 further comprises an engaging gear 504, the engaging gear 504 is fixedly sleeved on the outer ring of the one-way bearing 503; the sampling control part 6 comprises a control arm 601, the control arm 601 is fixedly installed on the closed cover 202 through a bolt; the control arm 601 is slidably inserted into the support frame 1011; the sampling control part 6 further comprises a rack 602, the rack 602 is fixedly installed at the bottom of the control arm 601; the rack 602 is aligned with the engaging gear 504; the sampling shell part 4 and the rotating sampling part 5 can facilitate sampling when the hollow plate waste is heated, can facilitate sampling of each batch of hollow plate waste heated, and can facilitate subsequent inspection of impurities, density and other parameters; the structure is simple and fast for sampling, the rotating column 501 can be automatically controlled to rotate by cooperating with the sampling control part 6 to perform sampling work, manual forgetting of sampling can be avoided, the sampling test block is more standard and has strong consistency, the standard consistency during subsequent detection is maintained, the structure is controlled directly, the structure can automatically control sampling when hollow plate waste is added for heating treatment each time; when the closed cover 202 is moved upward, the closed cover 202 can drive the control arm 601 to slide upward, drive the rack 602 to move upward, and drive the engaging gear 504 to rotate when the engaging gear 504 is close to the engaging gear 504, drive the one-way bearing 503 and the rotating column 501 to rotate, the hollow plate waste heated last time can be naturally filled in the sampling groove 5011, the hollow plate waste in the sampling groove 5011 can be rotated into the sealing shell 401 as the rotating column 501 rotates, can be gradually cooled, and can be elastically limited by cooperating with the positioning elastic sheet 402 elastically inserted into the groove in the positioning disc 502, automatic control of rotary sampling can be realized.

[0024] Working principle: first, the structure is placed on the ground, through the closed electric push rod 201 drive closed cover 202 on the opening, at this time can be put into the hollow plate waste in the heating tank 101, then through the closed electric push rod 201 drive closed cover 202 down, drive closed cover 202 closed heating tank 101, then can start heating tank 101 in the electric heating pipe heating; Start suction pipe 203 external vacuum pump auxiliary negative pressure suction; In the process can be through the isolation electric push rod 204 drive lifting mounting frame 301 lifting, drive isolation plate 304 lifting, and through the rotation of the motor 302 drive rotary rod 303 rotation, drive isolation plate 304 rotation, use isolation plate 304 bottom a circle of convex plate rotation, can realize stirring mixing hollow plate solution; Can discharge electromagnetic valve 102 directly connected with the hopper of granulator, need to open discharge electromagnetic valve 102 discharge, need to first through the isolation electric push rod 204 drive isolation plate 304 up, once there is still not hot melt hollow plate waste above isolation plate 304, at this time in the stop of hollow plate waste, isolation plate 304 can't up to the top of heating tank 101, corresponding extrusion plate 305 can't fully up drive convex block 3051 extrusion closed switch 205; Need in hollow plate waste completely hot melt, can pass through isolation plate 304, isolation plate 304 can up close closed cover 202, then drive extrusion plate 305 on convex block 3051 extrusion closed switch 205, realize control discharge electromagnetic valve 102 discharge hot melt hollow plate waste, reduce the volume, convenient for subsequent recycling or further processing; When the closure cover 202 is moved up, the closure cover 202 can drive the control arm 601 to slide upwards, drive the rack 602 to move upwards, and engage the gear 504 when close to the gear 504, so as to drive the one-way bearing 503 and the rotary column 501 to rotate. The last time the hollow plate waste is naturally filled in the sampling groove 5011. With the rotation of the rotary column 501, the hollow plate waste in the sampling groove 5011 is rotated into the sealed shell 401, which can be gradually cooled, and the positioning spring plate 402 is elastically inserted into the groove on the positioning disc 502, so as to achieve elastic limiting. Each time the rack 602 drives the gear 504 to rotate by 90 degrees, the positioning spring plate 402 elastically fits the groove on the positioning disc 502, which can not affect the normal rotation of the positioning disc 502, and can also be inserted into the groove on the positioning disc 502 for limiting. At the same time, when the closure cover 202 is moved down, the rack 602 is driven to move down, the one-way bearing 503 can rotate, the rotary column 501 can only rotate in one direction, and the hollow plate waste in the sampling groove 5011 is aligned with the push bolt 403. When the push bolt 403 is rotated manually, the cooled hollow plate waste sample in the sampling groove 5011 on the outside is pushed out, and then the sample can be sent for inspection, so that the rotary column 501 rotates continuously, and the sampling work is continuously carried out.

[0025] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste treatment device for a die cutting machine of hollow plates, comprising a heating device (1) on which a closure (2) is mounted, characterized in that: The closed part (2) is used for negative pressure suction of plastic melt; the closed part (2) is provided with a rotary mixing part (3); the rotary mixing part (3) is used for limiting the melting degree; The heating device (1) is provided at the bottom with a sampling shell part (4); the sampling shell part (4) is provided with a rotary sampling part (5); The closed part (2) is provided with a sampling control part (6), which is used for automatically controlling the rotary sampling part (5) to rotate and sample; The heating device (1) comprises a heating tank (101) and a support frame (1011), the heating tank (101) is fixedly installed at the bottom with the support frame (1011), and the support frame (1011) is provided with a circle of supporting legs; the inner side of the heating tank (101) is provided with an electric heating pipe.

2. A waste handling device for a die cutting machine for hollow plates according to claim 1, characterized in that: The heating device (1) further comprises a discharge electromagnetic valve (102), the heating tank (101) is fixedly installed at the bottom with the discharge electromagnetic valve (102), and the discharge electromagnetic valve (102) is used for discharging plastic melt.

3. A waste handling device for a die cutting machine for hollow plates according to claim 2, characterized in that: The closed part (2) comprises a closed electric push rod (201), a closed cover (202), a suction pipe (203), an isolation electric push rod (204) and a closed switch (205), the support frame (1011) is fixedly installed with two closed electric push rods (201), the output shafts of the two closed electric push rods (201) are fixedly installed with the closed cover (202), and the closed cover (202) is buckled on the heating tank (101); the top of the closed cover (202) is fixedly installed with the suction pipe (203), and the suction pipe (203) is connected with a vacuum pump; the closed cover (202) is fixedly installed with two isolation electric push rods (204), and the output shafts of the two isolation electric push rods (204) respectively pass through the closed cover (202); the closed cover (202) is fixedly embedded with the closed switch (205), and the end of the closed switch (205) protrudes outside the closed cover (202); the closed switch (205) is electrically connected with the discharge electromagnetic valve (102).

4. A waste handling device for a die cutting machine for hollow plates according to claim 3, characterized in that: The rotary mixing part (3) comprises a lifting mounting frame (301), a rotary motor (302), a rotary rod (303) and an isolation plate (304), the lifting mounting frame (301) is fixedly installed on the output shafts of the two isolation electric push rods (204); the lifting mounting frame (301) is fixedly installed with the rotary motor (302), and the output shaft of the rotary motor (302) passes through the lifting mounting frame (301); the output shaft of the rotary motor (302) is fixedly installed with the rotary rod (303), and the rotary rod (303) is rotatably sleeved on the lifting mounting frame (301); the rotary rod (303) passes through the closed cover (202); the bottom of the rotary rod (303) is fixedly installed with the isolation plate (304); the isolation plate (304) is slidably sleeved in the heating tank (101); the bottom of the isolation plate (304) is provided with a circle of protruding plates; the isolation plate (304) is provided with mesh holes.

5. A waste handling device for a die cutting machine for hollow plates according to claim 4, characterized in that: The rotating mixing piece (3) further comprises an extrusion plate (305) and a protruding block (3051), the extrusion plate (305) is fixedly installed on the lifting mounting frame (301) through bolts; the extrusion plate (305) is located outside the closed switch (205); the extrusion plate (305) is of L-shaped structure; the protruding block (3051) is fixedly installed on the inner side of the bottom of the extrusion plate (305), and the protruding block (3051) is used for extruding the closed switch (205).

6. A waste handling device for a die cutting machine for hollow plates according to claim 3, characterized in that: The sampling shell piece (4) comprises a sealing shell (401), a positioning elastic sheet (402) and a push bolt (403), the sealing shell (401) is fixedly installed on the bottom of the heating tank (101); the sealing shell (401) is communicated with the heating tank (101); the end of the positioning elastic sheet (402) is fixedly installed on the sealing shell (401); the positioning elastic sheet (402) is of arc-shaped structure; the positioning elastic sheet (402) is an elastic steel sheet; the push bolt (403) is threadedly connected with the sealing shell (401).

7. A waste handling device for a die cutting machine for hollow plates according to claim 6, characterized in that: The rotating sampling piece (5) comprises a rotating column (501), a sampling groove (5011), a positioning disc (502) and a one-way bearing (503), the rotating column (501) is rotatably sleeved in the sealing shell (401); the outer side of the rotating column (501) is attached to the inner side of the sealing shell (401); four sampling grooves (5011) are formed in the rotating column (501); the end of the rotating column (501) is fixedly installed with the positioning disc (502), and the positioning disc (502) is rotatably attached to the outer side of the sealing shell (401); a groove is formed in the positioning disc (502); the positioning elastic sheet (402) is elastically inserted into the groove in the positioning disc (502); the inner ring of the one-way bearing (503) is fixedly installed on the positioning disc (502); when the positioning elastic sheet (402) is elastically inserted into the groove in the positioning disc (502), the upper sampling groove (5011) is communicated with the inside of the heating tank (101); the front end of the push bolt (403) is smaller in diameter than the width of the sampling groove (5011).

8. A waste handling device for a die cutting machine for hollow plates according to claim 7, characterized in that: The rotating sampling piece (5) further comprises an engagement gear (504), the engagement gear (504) is fixedly sleeved on the outer ring of the one-way bearing (503).

9. A waste handling device for a die cutting machine for hollow plates according to claim 8, characterized in that: The sampling control piece (6) comprises a control arm (601), the control arm (601) is fixedly installed on the closed cover (202) through bolts; the control arm (601) is slidably inserted into the support frame (1011).

10. A waste handling device for a die cutting machine for hollow plates according to claim 9, characterized in that: The sampling control piece (6) further comprises a rack (602), the rack (602) is fixedly installed on the bottom of the control arm (601); the rack (602) is aligned with the engagement gear (504).

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