Hot cutting device for biodegradable plastic bag processing

Abstract

The invention belongs to the technical field of biodegradable plastic bag processing, particularly relates to a hot cutting device for biodegradable plastic bag processing, and aims to solve the problem that existing molten plastic is easy to adhere to a cutter, the following scheme is provided: the hot cutting device comprises a workbench, a fold removing assembly is arranged on one side of the top end of the workbench, and a portal frame is fixedly mounted in the middle of the top end of the workbench; air cylinders are fixedly installed at the two ends of the top end of the portal frame, a tool apron is fixedly installed between the movable bottom ends of the two air cylinders, and a hot cutter is fixedly installed at the bottom end of the tool apron. According to the hot cutter cleaning device, a second driving motor works, a driving gear drives a driven gear to rotate, then a rotating shaft rotates, the whole cleaning assembly is driven to rotate, a cleaning piece is far away from the outermost end of a limiting open groove under the action of centrifugal force and repulsion of two magnetic sheets, the cleaning piece can be attached to the surface of a hot cutter easily, and the cleaning efficiency is improved. And the top end of the cleaning piece is provided with the section protrusion, the cleaning piece can resist high temperature, and plastic and floating dust adhering to the surface of the hot cutter can be scraped easily.

Description

Technical Field

[0001] The invention relates to the technical field of biodegradable plastic bag processing, in particular to a hot cutting device for biodegradable plastic bag processing. Background Art

[0002] Biodegradable plastics refer to a type of plastic that is degraded by microorganisms such as bacteria, molds (fungi) and algae that exist in nature. An ideal biodegradable plastic is a polymer material that has excellent performance, can be completely decomposed by environmental microorganisms after being discarded, and eventually becomes inorganic and becomes a part of the carbon cycle in nature. The main target market for biodegradable plastics is plastic packaging film, agricultural film, disposable plastic bags and disposable plastic tableware. During the processing of existing biodegradable plastic bags, the biodegradable plastic bags need to be heat-cut to separate the biodegradable plastic bags.

[0003] After searching, the patent publication number CN217574262U discloses a patent named "A hot cutting device for processing biodegradable plastic bags". The technical problem to be solved is that since the hot cutting tool is fixed to the hot cutting device by bolts, when replacing or repairing the hot cutting tool, the staff needs to tighten the bolts many times, which is time-consuming and labor-intensive, reduces the maintenance efficiency of the hot cutting tool, and is not conducive to replacing and repairing the hot cutting tool. By setting a limit block and a limit slot that cooperates with it, the hot cutting tool can be disassembled from the bottom of the connecting rod by connecting and separating the limit block and the limit slot during use, avoiding the bolt fixing method. When replacing or repairing the hot cutting tool, the staff does not need to tighten the bolts, saving time and labor, improving the maintenance efficiency of the hot cutting tool, and facilitating the replacement and repair of the hot cutting tool.

[0004] However, there are still the following drawbacks that need to be solved: during the hot cutting process, the melted plastic at the cut is easy to stick to the cutter, making it difficult to separate the cut plastic bags, and the plastic left on the cut surface of the hot cutter is difficult to remove, which can easily affect the accuracy of the next hot cutting. Summary of the invention

[0005] Based on the existing technical problem that melted plastics are easy to stick to the cutter, the present invention provides a hot cutting device for processing biodegradable plastic bags.

[0006] The present invention proposes a hot cutting device for processing biodegradable plastic bags, comprising a workbench, a pleat removal component is arranged on one side of the top of the workbench, a gantry is fixedly installed in the middle of the top of the workbench, and cylinders are fixedly installed at both ends of the top of the gantry, a knife seat is fixedly installed between the movable bottom ends of the two cylinders, and a hot cutting knife is fixedly installed at the bottom of the knife seat, a negative pressure fan is arranged at one end of the workbench, and a collecting frame is fixedly installed at the input end of the negative pressure fan, suction pipes are fixedly connected on both sides of the collecting frame, and the two suction pipes are located at the lower ends of the inner walls at both ends of the gantry, and the top of the gantry Electric push rods are fixedly installed at both ends, and the two electric push rods are located on the inner sides of the two cylinders, and a moving frame is fixedly installed on the top of the two electric push rods, cam plates are rotatably installed on both sides of the upper ends of the inner walls at both ends of the gantry, and a transmission gear is fixedly installed on the outside of each cam plate, and a gear frame is fixedly installed at both ends of the bottom end of the moving frame, and the two sides of the gear frame are meshed with two transmission gears in the same row, and a cleaning component is arranged between the two cam plates in each column, and a hydraulic column is fixedly installed in the middle of the two ends of the top of the tool holder, and a cooling component is fixedly arranged between the tops of the two hydraulic columns.

[0007] Preferably, the depletion assembly includes a support frame and two fixing ears, and a first driving motor is fixedly installed in the middle of the top of the support frame, and depletion rollers are rotatably installed on the upper ends of the two fixing ears, and a transmission mechanism is arranged between the output end of the first driving motor and one side of the two depletion rollers, and the two depletion rollers are distributed in an eight-shaped shape, and spiral strips are fixedly arranged on the circumference of the two depletion rollers, and the spiral strips are made of rubber material.

[0008] Preferably, a shaft sleeve is fixedly installed in the middle of the top end of the gantry, a guide rod is fixedly installed in the middle of the top end of the tool holder, and the guide rod is located inside the shaft sleeve, and a support spring is sleeved on the upper end of the circumference of the guide rod.

[0009] Preferably, through holes in a spiral array are provided on the outer sides of the circumferences of the two suction pipes.

[0010] Preferably, the cleaning component includes a rotating shaft, and a heat transfer roller is fixedly sleeved on the outer side of the rotating shaft, a plurality of limiting grooves with equal angles are opened on the circumference of the heat transfer roller, and a slide bar is slidably installed inside the limiting groove, a cleaning piece is fixedly installed on the top of the slide bar, and magnetic sheets are embedded and installed on the bottom end of the slide bar and the bottom end of the limiting groove, and the two magnetic sheets repel each other.

[0011] Preferably, a second drive motor is fixedly mounted on the inner side of one of the cam plates in each column, and a driving gear is fixedly mounted on the output end of the second drive motor, a driven gear is fixedly mounted on the circumferential end of the rotating shaft, and the circumferential outer side of the driving gear meshes with the circumferential outer side of the driven gear.

[0012] Preferably, the cooling component includes two shunt pipes, and the two shunt pipes are fixedly connected, one of the connection points of the two shunt pipes is fixedly connected to a guide pipe, and the two shunt pipes are fixedly installed with diffuser covers on the relative bottom ends, and the two diffuser covers are located at both ends of the knife seat and the hot cutting knife, through grooves are opened on both sides of the two ends of the knife seat, and the two shunt pipes are slidably connected to the through grooves.

[0013] Preferably, a rectangular opening is provided at the middle upper end of the other end of the gantry, and the guide pipe is located inside the rectangular opening.

[0014] Preferably, a hot cutting opening is provided in the middle of the top of the workbench, and the hot cutting opening is located at the lower end of the hot cutting knife, the output end of the negative pressure fan is fixedly connected to a purification box, and a filtering mechanism and a deodorizing mechanism are provided inside the purification box, an exhaust port is provided at the top of the purification box, a diverter hood is fixedly installed in the middle of the upper end of the inner wall at both ends of the workbench, and the diverter hood is located at the lower end of the hot cutting opening, and the diverter hood is located at the top of the purification box.

[0015] Preferably, a cut-surface protrusion is provided at the top of the cleaning member, the lower end of the cleaning member is in the shape of a semi-elliptical scraping strip, and the cleaning member is resistant to high temperatures.

[0016] The beneficial effects of the present invention are:

[0017] 1. A hot cutting device for processing biodegradable plastic bags proposed by the present invention first removes wrinkles from the biodegradable plastic bags through a pleat removal component. When the biodegradable plastic bags are conveyed and moved to the bottom of a hot cutter, two cylinders work and extend simultaneously to allow the hot cutter to hot cut the biodegradable plastic bags. Then, the two cylinders reset simultaneously to allow the hot cutter to move upward and reset. Two suction pipes with through holes in a spiral array on the outer side of the circumference constantly absorb the air at the lower end of the gantry under negative pressure, including the heat emitted by the hot cutter and the odor emitted by the biodegradable plastic bags, which helps to omni-directionally negatively absorb the particles scraped off by the cleaning component and the heat emitted by the hot cutter. Then, the two hydraulic columns move downward to allow the outlet end of the cooling component to be located on both sides of the hot cutter, and the guide pipes of the cooling component successively introduce coolant and cleaning liquid, respectively, so that the two groups of manifolds and diffuser covers first spray coolant on both ends of the hot cutter to make it Rapid cooling and then spraying cleaning fluid can help the cleaning part to quickly clean the surface of the hot cutter, then the two hydraulic columns are reset to move the cooling component up and reset, the two electric push rods start to work and shorten to move the movable frame down, and then the two gear frames are moved down to drive the four transmission gears to rotate, so that the two cam plates in each column of the two groups rotate in the same direction at the same time, so that the cleaning component fits the bottom end of the hot cutter, wherein the second drive motor works, the active gear drives the driven gear to rotate, and then the rotating shaft rotates, driving the cleaning component to rotate as a whole, and during the rotation of the cleaning component, the cleaning part moves away from the outermost end of the limit slot under the action of centrifugal force and the repulsion of the two magnetic sheets, which helps the cleaning part fit the surface of the hot cutter, and the top of the cleaning part is provided with a cutting surface protrusion, the cleaning part is resistant to high temperature, which helps to scrape off the plastic and dust stuck on the surface of the hot cutter, so as to achieve the effect of cooling the hot cutter first and then cleaning it.

[0018] 2. The present invention proposes a hot cutting device for processing biodegradable plastic bags. The depletion assembly includes a support frame and two fixed ears, a first drive motor, two depletion rollers and a transmission mechanism. When the biodegradable plastic bag is transmitted to one side of the workbench, the first drive motor keeps working and makes the two depletion rollers keep rotating through the transmission mechanism. The two depletion rollers are distributed in an eight-shaped shape. Spiral strips made of rubber material are fixed on the circumference of the two depletion rollers, thereby smoothing the biodegradable plastic bag from the middle to both ends to prepare for the hot cutting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a hot cutting device for processing biodegradable plastic bags proposed by the present invention;

[0020] Figure 2 This is a left-side structural schematic diagram of a hot cutting device for processing biodegradable plastic bags proposed by the present invention;

[0021] Figure 3 A schematic diagram of the structure of a hot cutting knife of a hot cutting device for processing biodegradable plastic bags proposed by the present invention from a bottom view;

[0022] Figure 4 This is a schematic structural diagram of a tooth frame and a transmission gear of a hot cutting device for processing biodegradable plastic bags proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a shunt pipe of a hot cutting device for processing biodegradable plastic bags proposed by the present invention;

[0024] Figure 6 A schematic cross-sectional view of a heat transfer roller of a hot cutting device for processing biodegradable plastic bags proposed by the present invention;

[0025] Figure 7 The present invention is a schematic diagram of the structure of a workbench of a hot cutting device for processing biodegradable plastic bags as viewed from above.

[0026] In the figure: 1 workbench, 2 support frame, 3 first drive motor, 4 transmission mechanism, 5 depletion roller, 6 gantry, 7 negative pressure fan, 8 collecting frame, 9 suction pipe, 10 cylinder, 11 knife seat, 12 sleeve, 13 guide rod, 14 support spring, 15 moving frame, 16 gear frame, 17 electric push rod, 18 hot cutting knife, 19 transmission gear, 20 cam plate, 21 diverter pipe, 22 rotating shaft, 23 driven gear, 24 second drive motor, 25 driving gear, 26 heat transfer roller, 27 guide pipe, 28 hydraulic column, 29 diffuser cover, 30 limit slot, 31 slide bar, 32 cleaning part, 33 hot cutting opening, 34 diverter cover, 35 purification box. DETAILED DESCRIPTION

[0027] Reference Figure 1-7A hot cutting device for processing biodegradable plastic bags comprises a workbench 1, a pleat removal assembly is arranged on one side of the top of the workbench 1, a gantry 6 is fixedly installed in the middle of the top of the workbench 1, and cylinders 10 are fixedly installed at both ends of the top of the gantry 6, a knife seat 11 is fixedly installed between the movable bottom ends of the two cylinders 10, and a hot cutting knife 18 is fixedly installed at the bottom of the knife seat 11, a negative pressure fan 7 is arranged at one end of the workbench 1, and a collecting frame 8 is fixedly installed at the input end of the negative pressure fan 7, suction pipes 9 are fixedly connected on both sides of the collecting frame 8, and the two suction pipes 9 are located at the lower ends of the inner walls at both ends of the gantry 6, and electric A movable push rod 17 is provided, and the two electric push rods 17 are located on the inner side of the two cylinders 10, and a movable frame 15 is fixedly installed on the top of the two electric push rods 17, cam plates 20 are rotatably installed on both sides of the upper ends of the inner walls at both ends of the gantry 6, and a transmission gear 19 is fixedly arranged on the outer side of each cam plate 20, and a gear frame 16 is fixedly installed on both ends of the bottom end of the movable frame 15, and both sides of the gear frame 16 are meshed with two transmission gears 19 in the same row, and a cleaning component is arranged between the two cam plates 20 in each column, and a hydraulic column 28 is fixedly installed in the middle of the two ends of the top of the tool holder 11, and a cooling component is fixedly arranged between the tops of the two hydraulic columns 28.

[0028] In the present invention, the depletion assembly includes a support frame 2 and two fixed ears, and a first driving motor 3 is fixedly installed in the middle of the top of the support frame 2, and depletion rollers 5 are rotatably installed on the upper ends of the two fixed ears. A transmission mechanism 4 is arranged between the output end of the first driving motor 3 and one side of the two depletion rollers 5, and the two depletion rollers 5 are distributed in an eight-shaped shape, and spiral strips are fixedly arranged on the circumference of the two depletion rollers 5, and the spiral strips are made of rubber material. When the biodegradable plastic bag is conveyed to one side of the workbench 1, the first driving motor 3 works continuously and makes the two depletion rollers 5 rotate continuously through the transmission mechanism 4, and the two depletion rollers 5 are distributed in an eight-shaped shape, and spiral strips made of rubber material are fixedly arranged on the circumference of the two depletion rollers 5, thereby smoothing the biodegradable plastic bag from the middle to both ends, in preparation for hot work;

[0029] A shaft sleeve 12 is fixedly installed in the middle of the top of the gantry 6, and a guide rod 13 is fixedly installed in the middle of the top of the knife seat 11, and the guide rod 13 is located inside the shaft sleeve 12, and a support spring 14 is sleeved on the upper end of the circumference of the guide rod 13. The knife seat 11 moves up and down along the shaft sleeve 12 driven by the two cylinders 10 through the guide rod 13, thereby enhancing the stability of the knife seat 11 when it moves, and the support spring 14 is sleeved on the upper end of the circumference of the guide rod 13, further buffering and strengthening the stability of the guide rod 13 and the knife seat 11 when they move up and down;

[0030] The two suction pipes 9 are provided with through holes in a spiral array on the outer circumference, which helps to absorb the particles scraped by the cleaning component and the heat emitted by the hot cutting knife 18 with all-round negative pressure;

[0031] The cleaning component includes a rotating shaft 22, and a heat transfer roller 26 is fixedly sleeved on the outer side of the rotating shaft 22. The heat transfer roller 26 is provided with a plurality of limit slots 30 at equal angles on its circumference, and a slide bar 31 is slidably installed inside the limit slot 30. A cleaning member 32 is fixedly installed on the top of the slide bar 31. Magnetic sheets are embedded and installed at the bottom ends of the slide bar 31 and the limit slot 30, and the two magnetic sheets repel each other. When the second driving motor 24 works, the driving gear 25 drives the driven gear 23 to rotate, thereby rotating the rotating shaft 22, driving the cleaning component to rotate as a whole, and during the rotation of the cleaning component, the cleaning member 32 moves away from the outermost end of the limit slot 30 under the action of centrifugal force and the repulsion of the two magnetic sheets, which helps the cleaning member 32 to fit the surface of the hot cutter 18, and a cutting surface protrusion is provided on the top of the cleaning member 32. The cleaning member 32 is resistant to high temperatures and helps to scrape off plastic and floating dust adhering to the surface of the hot cutter 18.

[0032] A second drive motor 24 is fixedly mounted on the inner side of one of the cam plates 20 in each row, and a driving gear 25 is fixedly mounted on the output end of the second drive motor 24. A driven gear 23 is fixedly mounted on one end of the circumference of the rotating shaft 22, and the outer side of the circumference of the driving gear 25 meshes with the outer side of the circumference of the driven gear 23.

[0033] The cooling component includes two shunt pipes 21, and the two shunt pipes 21 are fixedly connected, one of the connection points of the two shunt pipes 21 is fixedly connected with a guide pipe 27, and the two shunt pipes 21 are fixedly installed with diffuser covers 29 at the opposite bottom ends, and the two diffuser covers 29 are located at the two ends of the knife seat 11 and the hot cutting knife 18, and both sides of the two ends of the knife seat 11 are provided with through grooves, and the two shunt pipes 21 are slidably sleeved with the through grooves. When the hot cutting knife 18 completes the hot cutting of the biodegradable plastic bag, the two The cylinder 10 is reset to make the hot cutter 18 move upward. During this process, the two suction pipes 9 absorb the air at the lower end of the gantry 6 with negative pressure at all times, including the heat emitted by the hot cutter 18 and the odor emitted by the biodegradable plastic bag. The guide pipe 27 of the cooling component successively introduces the coolant and the cleaning liquid, so that the two groups of manifolds 21 and the diffuser cover 29 first spray the coolant on both ends of the hot cutter 18 to quickly cool it down, and then spray the cleaning liquid, which helps the cleaning member 32 to quickly clean the surface of the hot cutter 18;

[0034] A rectangular opening is provided at the middle upper end of the other end of the gantry 6, and the guide pipe 27 is located inside the rectangular opening;

[0035] A hot cutting opening 33 is provided in the middle of the top of the workbench 1, and the hot cutting opening 33 is located at the lower end of the hot cutting knife 18. A purification box 35 is fixedly connected to the output end of the negative pressure fan 7, and a filtering mechanism and a deodorizing mechanism are arranged inside the purification box 35. An exhaust port is arranged at the top of the purification box 35. A diverter hood 34 is fixedly installed in the middle of the upper ends of the inner walls at both ends of the workbench 1, and the diverter hood 34 is located at the lower end of the hot cutting opening 33. The diverter hood 34 is located at the top of the purification box 35. The negative pressure fan 7 transmits all the mixture sucked by the two suction pipes 9 to the inside of the purification box 35, and the purification box 35 filters, deodorizes and purifies it, and then the diverter hood 34 disperses and guides it, so that the airflow escaping from the hot cutting opening 33 is clean, so as to avoid the harmful gas generated by the high temperature in the hot cutting process from being distributed inside the workshop and causing physical discomfort to the workers.

[0036] The top of the cleaning member 32 is provided with a cut-surface protrusion, the lower end of the cleaning member 32 is in the shape of a semi-elliptical scraping strip, and the cleaning member 32 is resistant to high temperatures.

[0037] Working principle: the biodegradable plastic bag is first depleted by the depletion assembly. When the biodegradable plastic bag is conveyed and moved to the bottom end of the hot cutter 18, the two cylinders 10 work and extend at the same time to make the hot cutter 18 hot-cut the biodegradable plastic bag. Then the two cylinders 10 are reset at the same time to make the hot cutter 18 move up and reset. Two suction pipes 9 with through holes in a spiral array on the outer side of the circumference constantly absorb the air at the lower end of the gantry 6 under negative pressure, including the heat emitted by the hot cutter 18 and the odor emitted by the biodegradable plastic bag, which helps to absorb the particles scraped by the cleaning assembly and the heat emitted by the hot cutter 18 under all-round negative pressure. Then the two hydraulic columns 28 move downward so that the outlet end of the cooling assembly is located on both sides of the hot cutter 18, and the guide pipes 27 of the cooling assembly introduce coolant and cleaning liquid respectively, so that the two groups of manifolds 21 and the diffuser 29 first spray coolant on both ends of the hot cutter 18 to quickly cool it down, and then spray cleaning liquid, which helps to clean The cleaning member 32 quickly cleans the surface of the hot cutter 18, and then the two hydraulic columns 28 are reset to reset the cooling member upward, and the two electric push rods 17 start to work and shorten to move the moving frame 15 downward, thereby causing the two tooth frames 16 to move downward to drive the four transmission gears 19 to rotate, so that the two cam plates 20 of each column of the two groups rotate in the same direction at the same time, thereby making the cleaning member fit the bottom end of the hot cutter 18, wherein the second driving motor 24 works, and the driving gear 25 drives the driven gear 23 to rotate, thereby causing the rotating shaft 22 to rotate, driving the cleaning member to rotate as a whole, and during the rotation of the cleaning member, the cleaning member 32 moves away from the outermost end of the limiting slot 30 under the action of centrifugal force and the repulsion of the two magnetic sheets, which helps the cleaning member 32 fit the surface of the hot cutter 18, and the top of the cleaning member 32 is provided with a cutting surface protrusion, and the cleaning member 32 is resistant to high temperature, which helps to scrape off the plastic and floating dust on the surface of the hot cutter 18, so as to achieve the effect of cooling the hot cutter 18 first and then cleaning it;

[0038] The depletion assembly includes a support frame 2 and two fixed ears, a first drive motor 3, two depletion rollers 5 and a transmission mechanism 4. When the biodegradable plastic bag is conveyed to one side of the workbench 1, the first drive motor 3 keeps working and makes the two depletion rollers 5 keep rotating through the transmission mechanism 4. The two depletion rollers 5 are distributed in an eight-shaped shape. The two depletion rollers 5 are fixedly provided with spiral strips made of rubber material on their circumferences, thereby smoothing the biodegradable plastic bag from the middle to both ends, in preparation for hot work.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot cutting device for processing biodegradable plastic bags, comprising a workbench (1), a pleat removal assembly being arranged on one side of the top of the workbench (1), a gantry (6) being fixedly mounted in the middle of the top of the workbench (1), and cylinders (10) being fixedly mounted at both ends of the top of the gantry (6), a knife seat (11) being fixedly mounted between the movable bottom ends of the two cylinders (10), and a hot cutting knife (18) being fixedly mounted at the bottom end of the knife seat (11), characterized in that: A negative pressure fan (7) is provided at one end of the workbench (1), and a collecting frame (8) is fixedly installed at the input end of the negative pressure fan (7), and suction pipes (9) are fixedly connected to both sides of the collecting frame (8), and the two suction pipes (9) are located at the lower ends of the inner walls at both ends of the gantry (6), and electric push rods (17) are fixedly installed at both ends of the top of the gantry (6), and the two electric push rods (17) are located on the inner sides of the two cylinders (10), and a moving frame (15) is fixedly installed at the top of the two electric push rods (17), and the inner walls at both ends of the gantry (6) are fixedly connected to the two suction pipes (9), and the two suction pipes (9) are located at the lower ends of the inner walls at both ends of the gantry (6). Cam plates (20) are rotatably mounted on both sides of the upper end of the wall, and a transmission gear (19) is fixedly mounted on the outer side of each cam plate (20); tooth frames (16) are fixedly mounted on both ends of the bottom end of the movable frame (15), and both sides of the tooth frame (16) are meshed with two transmission gears (19) in the same row; a cleaning component is arranged between the two cam plates (20) in each column; hydraulic columns (28) are fixedly mounted in the middle of the two ends of the top end of the knife seat (11), and a cooling component is fixedly arranged between the top ends of the two hydraulic columns (28).

2. A hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: The de-pleating assembly comprises a support frame (2) and two fixing ears, wherein a first driving motor (3) is fixedly mounted in the middle of the top of the support frame (2), and de-pleating rollers (5) are rotatably mounted on the upper ends of the two fixing ears, and a transmission mechanism (4) is arranged between the output end of the first driving motor (3) and one side of the two de-pleating rollers (5), and the two de-pleating rollers (5) are distributed in an eight-shaped pattern, and spiral strips are fixedly arranged on the circumference of the two de-pleating rollers (5), and the spiral strips are made of rubber material.

3. The hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: A shaft sleeve (12) is fixedly installed in the middle of the top of the gantry (6), a guide rod (13) is fixedly installed in the middle of the top of the knife seat (11), and the guide rod (13) is located inside the shaft sleeve (12), and a support spring (14) is sleeved on the upper end of the circumference of the guide rod (13).

4. The hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: Through holes in a spiral array are provided on the outer circumferences of the two suction pipes (9).

5. The hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: The cleaning component comprises a rotating shaft (22), and a heat transfer roller (26) is fixedly sleeved on the outer circumference of the rotating shaft (22), a plurality of equal-angle limiting grooves (30) are opened on the circumference of the heat transfer roller (26), and a slide bar (31) is slidably installed inside the limiting groove (30), a cleaning member (32) is fixedly installed on the top of the slide bar (31), and magnetic sheets are embedded and installed at the bottom ends of the slide bar (31) and the limiting groove (30), and the two magnetic sheets repel each other.

6. A hot cutting device for processing biodegradable plastic bags according to claim 5, characterized in that: A second drive motor (24) is fixedly mounted on the inner side of one of the cam plates (20) in each row, and a driving gear (25) is fixedly mounted on the output end of the second drive motor (24); a driven gear (23) is fixedly mounted on one circumferential end of the rotating shaft (22), and the circumferential outer side of the driving gear (25) meshes with the circumferential outer side of the driven gear (23).

7. The hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: The cooling component comprises two shunt pipes (21), and the two shunt pipes (21) are fixedly connected, one of the connection points of the two shunt pipes (21) is fixedly connected to a guide pipe (27), and the two shunt pipes (21) are fixedly installed with diffuser covers (29) at the relative bottom ends, and the two diffuser covers (29) are located at the two ends of the knife seat (11) and the hot cutting knife (18), and both sides of the two ends of the knife seat (11) are provided with through grooves, and the two shunt pipes (21) are slidably sleeved with the through grooves.

8. The hot cutting device for processing biodegradable plastic bags according to claim 7, characterized in that: A rectangular opening is provided at the middle upper end of the other end of the gantry (6), and the flow guide pipe (27) is located inside the rectangular opening.

9. The hot cutting device for processing biodegradable plastic bags according to claim 1, characterized in that: A heat cutting opening (33) is provided in the middle of the top of the workbench (1), and the heat cutting opening (33) is located at the lower end of the heat cutting knife (18); the output end of the negative pressure fan (7) is fixedly connected to a purification box (35), and a filtering mechanism and a deodorizing mechanism are provided inside the purification box (35); an exhaust port is provided at the top of the purification box (35); a flow divider (34) is fixedly installed in the middle of the upper ends of the inner walls at both ends of the workbench (1), and the flow divider (34) is located at the lower end of the heat cutting opening (33), and the flow divider (34) is located at the top of the purification box (35).

10. The hot cutting device for processing biodegradable plastic bags according to claim 5, characterized in that: The top of the cleaning member (32) is provided with a cut-surface protrusion, the lower end of the cleaning member (32) is in the shape of a semi-elliptical scraping strip, and the cleaning member (32) is resistant to high temperatures.

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