Bamboo-plastic composite material processing device

Abstract

The application discloses a bamboo-plastic composite material processing device, which comprises a machine table, a conveying frame is arranged on one side of the machine table, a side-belt type multi-roller feeding module for horizontally conveying strip-shaped bamboo-plastic composite materials is arranged in the conveying frame, a screw extruder for extruding strip-shaped bamboo-plastic composite materials to the side-belt type multi-roller feeding module is arranged at the top end of the machine table, and a double-pipe multi-column water cooling module is arranged above the side-belt type multi-roller feeding module. The device can make each heat dissipation fan in the X-axis direction reciprocate and swing, effectively reduce the spacing between the heat dissipation fans, reduce the existence of air blowing blind areas, ensure that each area can obtain uniform cooling air flow, avoid product quality problems caused by excessively high local temperature, and through the water cooling mode of the double-pipe multi-column water cooling module, heat on the surface of the material can be quickly taken away, the temperature of the feeding module area is reduced, and the generation and circulation of hot air are reduced.

Description

Technical Field

[0001] This invention relates to the field of bamboo-plastic composite processing technology, specifically to a bamboo-plastic composite material processing device. Background Technology

[0002] Bamboo-plastic composites are composite materials made primarily of bamboo fiber, combined with a plastic matrix (usually polyethylene, polypropylene, polyvinyl chloride, etc.) through specific processes. Bamboo-plastic composites possess good environmental performance, high strength, durability, and excellent corrosion resistance. The main raw materials include bamboo powder or bamboo fiber, plastic resin, and additives. Bamboo powder or bamboo fiber typically requires drying to ensure its moisture content is within a reasonable range (generally controlled below 3%), otherwise it will affect the uniformity and physical properties of the composite material. Furthermore, the plastic resin is usually selected from low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), or polyvinyl chloride (PVC). In an internal mixer, bamboo powder / bamboo fiber is mixed with the plastic resin and other additives, undergoing thorough plasticization and reaction. The working principle of the internal mixer is to mix the raw materials using the high shear force generated by two relatively rotating rubber rollers or propeller blades. During this process, bamboo fiber and plastic resin undergo a good physical bond, allowing the bamboo fiber to be evenly dispersed in the plastic matrix, thus forming a stable composite structure. The mixed bamboo-plastic composite is then fed into a screw extruder for further processing. In the screw extruder, the bamboo-plastic composite melts under the combined action of temperature and pressure, and is then molded into the desired shape through a die.

[0003] Extruded bamboo-plastic composite materials are typically in strip or sheet form. After molding, these materials require cooling to ensure shape stability and achieve the desired physical properties. Currently, the extruded strip-shaped bamboo-plastic composite materials are introduced onto a conveyor line, where several fans arranged continuously blow air onto them to cool and shape them. However, there are blind spots between adjacent fans during this process, preventing sufficient airflow to the material. This results in the strip-shaped bamboo-plastic composite materials not being properly ventilated when passing through these areas. Furthermore, due to the high temperature of the bamboo-plastic composite materials themselves, the fans continuously blow in hot air, which further intensifies the material's heat, creating a vicious cycle. Summary of the Invention

[0004] The purpose of this invention is to provide a bamboo-plastic composite material processing device. Strip-shaped bamboo-plastic composite materials, after being processed by internal mixing and screw extrusion, are introduced onto a side-belt type multi-roller feeding module. This module horizontally conveys the strip-shaped bamboo-plastic composite material. A rotary drive unit drives the side-belt type multi-roller feeding module, and a swing-arm type gear rack reciprocating transmission assembly works simultaneously. This causes multiple U-shaped frames and cooling fans above the conveyor frame to reciprocate, reducing the blind spots in airflow caused by the spacing between the cooling fans. A dual-pipe multi-row water-cooling module is located between the cooling fans and the side-belt type multi-roller feeding module. This module reduces the temperature in the feeding module area, minimizing the hot air circulation effect and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bamboo-plastic composite material processing device, comprising:

[0006] The machine is equipped with a conveyor frame on one side, and a side belt type multi-roller feeding module for horizontally conveying strip-shaped bamboo-plastic composite material is installed inside the conveyor frame. A screw extruder for extruding strip-shaped bamboo-plastic composite material into the side belt type multi-roller feeding module is installed at the top of the machine. A double-pipe multi-row water-cooling module is installed above the side belt type multi-roller feeding module.

[0007] A gyratory support structure is provided, with multiple gyratory support structures installed on the front and rear outer walls of the conveyor frame. A rotary frame is rotatably installed inside the gyratory support structure, and at least one cooling fan is installed at the bottom of the rotary frame. A swing arm type gear rack reciprocating transmission assembly for driving one of the rotary frames to reciprocate is installed on one side of the surface of the conveyor frame. A rotary drive unit for driving the side belt type multi-roller feeding module and the swing arm type gear rack reciprocating transmission assembly is installed on one side of the machine base. A PLC control panel is installed on one side of the machine base surface, and the output terminal of the PLC control panel is electrically connected to the input terminal of the rotary drive unit.

[0008] Preferably, the gyroscopic support structure includes a shaft frame fixed on the front and rear outer walls of the conveyor frame and a rotating shaft rotatably installed inside the shaft frame. The spiral frame is fixed between the opposite ends of the two rotating shafts. A belt drive structure for maintaining power connection is installed on the same end of multiple rotating shafts in the same X-axis direction. The swing arm type gear rack reciprocating transmission assembly drives one of the rotating shafts to reciprocate in both forward and reverse directions.

[0009] Preferably, the side-belt type multi-roller feeding module includes an active roller, a driven roller, and an L-shaped horizontal plate fixed on the front and rear inner walls of the conveyor frame, which are rotatably installed on both sides inside the conveyor frame. Several equally spaced material support rollers are rotatably installed between the two L-shaped horizontal plates. Both ends of the surfaces of the active roller, the driven roller, and the several material support rollers are equipped with a belt drive structure for maintaining power transmission. The rotary drive unit simultaneously drives the active roller and the swing arm type gear rack reciprocating transmission assembly to work.

[0010] Preferably, the material support roller is a stainless steel roller, and the pipes of the dual-pipe multi-row water-cooled cooling module are located between the material support roller and the cooling fan.

[0011] Preferably, the rotary drive unit includes a stepper motor installed inside one side of the conveyor frame and a synchronous wheel transmission structure installed at the output end of the stepper motor for driving the rotation of the active roller. The output shaft of the rotary drive unit is also connected to the swing arm type gear rack reciprocating transmission assembly and drives one of the rotating shafts to reciprocate in both forward and reverse directions.

[0012] Preferably, the swing arm type gear rack reciprocating transmission assembly includes a hollow frame fixed to one side of the conveyor frame surface, a main shaft rotatably installed inside the hollow frame, a swing arm body rotatably installed on one side of the hollow frame surface, and an I-shaped sliding plate slidably installed on one end of the hollow frame surface. A turntable is fixed to one end of the main shaft surface, and a first protrusion extending through to the outside of the swing arm body is installed at the edge of the turntable surface. A straight groove is provided at one end of the swing arm body surface for the first protrusion to pass through. A belt drive structure for connecting with the output shaft of a stepper motor is installed at the other end of the main shaft.

[0013] Preferably, a second protruding post is fixed on one side of the surface of the I-shaped sliding plate, a U-shaped notch is provided at the top of the swing arm body for the second protruding post to pass through, and a gear and rack transmission structure for driving one of the rotating shafts to rotate is installed on the back of the I-shaped sliding plate.

[0014] Preferably, the gear and rack transmission structure includes a boss fixed to the back of the I-shaped slide plate, a rack mounted on the top of the boss, and a driven gear fixed to one end of one of the rotating shafts. The driven gear and the rack mesh with each other. A notch groove is provided on one outer wall of the hollow frame for the belt transmission structure to be arranged.

[0015] Preferably, the dual-pipe multi-row water-cooled cooling module includes a frame fixed on one side of the outer wall of the conveyor frame, a conveyor pump installed at the bottom of the frame, and a Y-type double-pass inlet pipe assembly installed at the outlet of the conveyor pump. A Y-type double-pass outlet pipe assembly corresponding to the Y-type double-pass inlet pipe assembly is provided on one side inside the conveyor frame. Two straight pipes are installed between the Y-type double-pass outlet pipe assembly and the Y-type double-pass inlet pipe assembly.

[0016] Preferably, a plurality of longitudinal pipes are installed at equal intervals between the two straight pipes, the extension direction of the central axis of the longitudinal pipes is perpendicular to the extension direction of the central axis of the straight pipes, and a switch valve is installed at the bottom end of the Y-shaped double-pass drain pipe assembly.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This bamboo-plastic composite material processing device, through the coordinated work of a screw extruder, a side-belt type multi-roller feeding module, a rotary drive unit, a dual-tube multi-row water-cooling module, a reciprocating frame, a cooling fan, and a swing-arm type gear rack reciprocating transmission assembly, enables each cooling fan in the X-axis direction to reciprocate, effectively reducing the spacing between the cooling fans and thus reducing the existence of blind spots in the airflow. This ensures that each area receives uniform cooling airflow, avoiding product quality problems caused by excessively high local temperatures. The dual-tube multi-row water-cooling module, through water cooling, can quickly remove heat from the material surface, reduce the temperature of the feeding module area, and reduce the generation and circulation of hot air. This allows for proper temperature control of the material during the conveying process, significantly shortening the processing time of subsequent processes and thus improving overall production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the side-belt type multi-roller feeding module according to Embodiment 2 of the present invention. Figure 1 ;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the side-belt type multi-roller feeding module according to Embodiment 2 of the present invention. Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the swing arm type gear and rack reciprocating transmission assembly according to Embodiment 3 of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the dual-tube multi-row water-cooled cooling module according to Embodiment 4 of the present invention.

[0026] In the diagram: 1. Machine base; 2. Screw extruder; 3. PLC control panel; 4. Conveyor frame; 5. Side belt type multi-roller feeding module; 501. Drive roller; 502. L-shaped cross plate; 503. Material support roller; 504. Driven roller; 505. Belt drive structure two; 6. Rotary drive unit; 7. Double-tube multi-row water cooling module; 701. Frame; 702. Conveying pump; 703. Y-type double-pass liquid inlet pipe assembly; 704. Straight pipe; 705. Longitudinal pipe; 706. Y-type 707. Double-pass drain pipe assembly; 8. Switch valve; 9. Shaft bracket; 10. Rotary shaft; 11. Reverse frame; 12. Cooling fan; 13. Belt drive structure one; 14. Swing arm type gear rack reciprocating transmission assembly; 15. Hollow frame; 16. Main shaft; 17. Turntable; 18. Swing arm body; 19. First protruding post; 10. Belt drive structure three; 11. I-shaped sliding plate; 12. Second protruding post; 13. Gear rack transmission structure. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] Example 1, by Figures 1 to 4 The present invention includes a machine base 1, a conveyor frame 4 is provided on one side of the machine base 1, and a side belt type multi-roller feeding module 5 for horizontally conveying strip-shaped bamboo-plastic composite material is installed inside the conveyor frame 4. A screw extruder 2 for extruding strip-shaped bamboo-plastic composite material to the side belt type multi-roller feeding module 5 is installed at the top of the machine base 1. A double tube multi-row water cooling module 7 is provided above the side belt type multi-roller feeding module 5.

[0029] A gyratory support structure is installed on the front and rear outer walls of the conveyor frame 4. A rotary support frame 10 is rotatably installed inside the gyratory support structure, and at least one cooling fan 11 is installed at the bottom of the rotary support frame 10. A swing arm type gear rack reciprocating transmission assembly 13 is installed on one side of the surface of the conveyor frame 4 to drive one of the rotary support frames 10 to reciprocate. A rotary drive unit 6 is installed on one side inside the conveyor frame 4 to drive the side belt type multi-roller feeding module 5 and the swing arm type gear rack reciprocating transmission assembly 13. The rotary drive unit 6 can achieve high-precision speed control, thereby ensuring the speed consistency of the material during the conveying process and reducing material loss caused by speed fluctuations. A PLC control panel 3 is installed on one side of the surface of the machine base 1. The output end of the PLC control panel 3 is electrically connected to the input end of the rotary drive unit 6.

[0030] The sway support structure includes a shaft frame 8 fixed on the front and rear outer walls of the conveyor frame 4 and a rotating shaft 9 rotatably installed inside the shaft frame 8. The return frame 10 is fixed between the opposite ends of the two rotating shafts 9. A belt drive structure 12 for maintaining power connection is installed on the same end of multiple rotating shafts 9 in the same X-axis direction. The swing arm type gear rack reciprocating transmission assembly 13 drives one of the rotating shafts 9 to reciprocate forward and reverse rotation. Multiple rotating shafts 9 in the X-axis direction maintain power connection through the belt drive structure 12, and then multiple cooling fans 11 swing together.

[0031] Example 2, based on Example 1, is... Figure 5 and Figure 6 The side-belt type multi-roller feeding module 5 includes a drive roller 501 and a driven roller 504 rotatably mounted on both sides inside the conveyor frame 4, and an L-shaped horizontal plate 502 fixed on the front and rear inner walls of the conveyor frame 4. Several equally spaced support rollers 503 are rotatably mounted between the two L-shaped horizontal plates 502. Both ends of the surfaces of the drive roller 501, the driven roller 504, and the several support rollers 503 are equipped with belt drive structures 505 for maintaining power transmission. The rotary drive unit 6 simultaneously drives the drive roller 501 and the swing arm type gear rack reciprocating transmission assembly 13 to work. The support rollers 503 are stainless steel rollers and are water-cooled in a double-pipe multi-row configuration. The cooling module 7 has a pipe located between the material support roller 503 and the cooling fan 11. The stepper motor in the rotary drive unit 6 drives the active roller 501 in the side belt type multi-roller feeding module 5 to rotate through the synchronous wheel transmission structure. The active roller 501, the driven roller 504 and each material support roller 503 are connected by two belt transmission structures 505. Thus, each material support roller 503 rotates to horizontally convey strip-shaped bamboo-plastic composite material. It can maintain a stable conveying speed while ensuring uniform material distribution and can handle strip-shaped bamboo-plastic composite materials of different shapes and sizes, making it suitable for various production needs.

[0032] The rotary drive unit 6 includes a stepper motor installed inside one side of the conveyor frame 4 and a synchronous wheel transmission structure installed at the output end of the stepper motor to drive the rotation of the active roller 501. The output shaft of the rotary drive unit 6 is also connected to the swing arm type gear rack reciprocating transmission assembly 13 and drives one of the rotating shafts 9 to reciprocate in both directions. The output shaft of the stepper motor in the rotary drive unit 6 drives the main shaft 1302 to rotate through the belt transmission structure 1306. At this time, the swing arm type gear rack reciprocating transmission assembly 13 and the side belt type multi-roller feeding module 5 share a stepper motor, which simultaneously meets the functional requirements of the side belt type multi-roller feeding module 5 to slowly convey strip-shaped bamboo-plastic composite material and the reciprocating swing of the cooling fan 11.

[0033] Example 3, based on Example 2, by Figure 7The swing arm type gear rack reciprocating transmission assembly 13 includes a hollow frame 1301 fixed to one side of the surface of the conveyor frame 4, a main shaft 1302 rotatably installed inside one side of the hollow frame 1301, a swing arm body 1304 rotatably installed on one side of the surface of the hollow frame 1301, and an I-shaped slide plate 1307 slidably installed on one end of the surface of the hollow frame 1301. A turntable 1303 is fixed to one end of the surface of the main shaft 1302. A first protrusion 1305 is installed at the edge of the surface of the turntable 1303, extending to the outside of the swing arm body 1304. A straight groove is provided at one end of the surface of the swing arm body 1304 for the first protrusion 1305 to pass through.

[0034] The other end of the main shaft 1302 is equipped with a belt drive structure 1306 for connecting with the output shaft of the stepper motor. A second protrusion 1308 is fixed on one side of the surface of the I-shaped slide plate 1307. The top of the swing arm body 1304 is provided with a U-shaped notch for the second protrusion 1308 to pass through. A gear and rack drive structure 1309 for driving one of the rotating shafts 9 to rotate is installed on the back of the I-shaped slide plate 1307. The gear and rack drive structure 1309 includes a boss fixed on the back of the I-shaped slide plate 1307, a rack installed on the top of the boss, and a driven gear fixed on one end of one of the rotating shafts 9. The driven gear and the rack mesh with each other. A notch groove for the belt drive structure 1306 to be arranged is provided on one side of the outer wall of the hollow frame 1301.

[0035] The main shaft 1302 drives the turntable 1303 to rotate. Since the first protrusion 1305 is located in the straight groove of the swing arm body 1304, the rotational motion of the main shaft 1302 is converted into the reciprocating swing motion of the swing arm body 1304. The swing arm body 1304 drives the I-shaped slide plate 1307 to slide back and forth in the X-axis direction through the second protrusion 1308. Then, the I-shaped slide plate 1307 drives the rotating shaft 9 to rotate back and forth in the positive and negative directions through the gear and rack transmission structure 1309. At this time, the rotating frame 10 and the cooling fan 11 swing, so that the cooling fan 11 can effectively circulate airflow, thereby enhancing the cooling effect.

[0036] Example 4, based on Example 3, by Figure 8The dual-pipe multi-row water-cooled cooling module 7 includes a frame 701 fixed to one side of the outer wall of the conveyor frame 4, a conveyor pump 702 installed at the bottom of the frame 701, and a Y-type double-pass inlet pipe assembly 703 installed at the outlet of the conveyor pump 702. A Y-type double-pass outlet pipe assembly 706 corresponding to the Y-type double-pass inlet pipe assembly 703 is provided on one side inside the conveyor frame 4. Two straight pipes 704 are installed between the Y-type double-pass outlet pipe assembly 706 and the Y-type double-pass inlet pipe assembly 703. The straight pipes 704 and the longitudinal pipe 705 are located between the cooling fan 11 and the Y-type double-pass inlet pipe assembly 703. Between the two straight pipes 704, several longitudinal pipes 705 are installed at equal intervals. The conveying pump 702 delivers external cold water to the Y-type double-pass liquid inlet pipe group 703. The Y-type double-pass liquid inlet pipe group 703 delivers the cold water in a stream to the two straight pipes 704. The longitudinal pipes 705 serve to connect the two straight pipes 704 and further disperse the water flow. The water flow after heat exchange is collected in the Y-type double-pass liquid outlet pipe group 706 and discharged through the switch valve 707. Through the circulation of the two pipes, it can quickly remove the heat generated by the material during the processing and effectively prevent the performance degradation caused by overheating of the material.

[0037] The central axis of the longitudinal pipe 705 extends perpendicularly to the central axis of the straight pipe 704. A switch valve 707 is installed at the bottom of the Y-type double-pass drain pipe assembly 706. The arrangement of the longitudinal pipe 705 can achieve a larger cooling area in a smaller space, thereby improving cooling efficiency.

[0038] In this embodiment, the bamboo-plastic composite material is first initially mixed in a Banbury mixer to ensure uniform dispersion of bamboo powder and plastic resin. The high temperature and high pressure environment of the Banbury mixer allows the material to reach a certain molten state, thereby improving the fluidity for subsequent processing. The material is then fed into a screw extruder 2 for further processing and molding. In the screw extruder 2, the temperature is further increased, and the material reaches a high-temperature molten state during extrusion, achieving the required processing temperature and fluidity. The bamboo-plastic composite material exiting the screw extruder 2 is in strip form and needs to enter the subsequent side-belt multi-roller feeding module 5. The feeding module 5 consists of multiple rollers. These rollers rotate to horizontally convey the strip-shaped bamboo-plastic composite material. During this process, the operator activates the rotary drive unit 6 via the PLC control panel 3 and connects the inlet of the dual-pipe multi-row water-cooling module 7 to an external cold water supply. At this time, the rotary drive unit 6 uses mechanical transmission to synchronously rotate each roller in the side-belt type multi-roller feeding module 5, maintaining a stable conveying speed. A portion of the rotational power from the rotary drive unit 6 is synchronously transmitted to the swing-arm type gear rack reciprocating transmission assembly 13, which drives the X-axis direction. Several cooling fans 11 on the surface reciprocate, allowing each fan 11 to circulate air effectively at different positions. This avoids insufficient airflow in certain areas due to excessive spacing, ensuring uniform temperature distribution of the material during transport. A dual-pipe multi-row water-cooled cooling module 7 is located between the cooling fans 11 and the side-belt multi-roller feeding module 5. This module prevents the strip-shaped bamboo-plastic composite material from jumping due to airflow. Furthermore, the cooling water circulates within the various pipes of the dual-pipe multi-row water-cooled cooling module 7, carrying away heat from the side-belt multi-roller feeding module 5 and the strip-shaped bamboo-plastic composite material. The heat effectively reduces the temperature of the feeding area, preventing thermal deformation and strength reduction of the material due to overheating. Furthermore, the continuous flow of cooling water allows the water-cooled structure to continuously remove heat from the air, further reducing the accumulation of high-temperature airflow. The reciprocating oscillation of the cooling fan helps ensure uniform airflow distribution, preventing the formation of overheated areas and thermal circulation. After the strip-shaped bamboo-plastic composite material is fed out from the side-belt multi-roller feeding module 5, the cooling process is completed. Later, according to the requirements of the final product, these extruded materials can be further molded, such as through injection molding, compression molding, or hot pressing, to obtain the desired product shape.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bamboo-plastic composite material processing device, characterized in that, Include: The machine table (1), one side of the machine table (1) is provided with a conveying frame (4), and the inside of the conveying frame (4) is provided with a strip-shaped bamboo plastic composite material horizontal conveying edge type multi-roller feeding module (5), the top end of the machine table (1) is provided with a screw extruder (2) for extruding strip-shaped bamboo plastic composite material to the edge type multi-roller feeding module (5), and the upper side of the edge type multi-roller feeding module (5) is provided with a double-pipe multi-column water cooling module (7); The rotating support structure is installed on the front and rear outer walls of the conveying frame (4), the inside of the rotating support structure is rotatably installed with a back-shaped frame (10), and the bottom end of the back-shaped frame (10) is installed with at least one cooling fan (11), one side of the surface of the conveying frame (4) is installed with a swing arm type gear rack reciprocating transmission assembly (13) for driving one of the back-shaped frames (10) to reciprocate, one side of the inside of the conveying frame (4) is installed with a rotating drive unit (6) for driving the edge type multi-roller feeding module (5) and the swing arm type gear rack reciprocating transmission assembly (13) to work, one side of the surface of the machine table (1) is installed with a PLC control panel (3), and the output end of the PLC control panel (3) is electrically connected with the input end of the rotating drive unit (6); The rotating support structure includes a shaft frame (8) fixed on the front and rear outer walls of the conveying frame (4) and a rotating shaft (9) rotatably installed in the shaft frame (8), the back-shaped frame (10) is fixed between the opposite ends of the two rotating shafts (9), and the same end of the rotating shafts (9) in the same X-axis direction is provided with a belt drive structure one (12) for maintaining power connection, the swing arm type gear rack reciprocating transmission assembly (13) drives one of the rotating shafts (9) to reciprocate and rotate in opposite directions, the swing arm type gear rack reciprocating transmission assembly (13) includes a hollow frame (1301) fixed on one side of the surface of the conveying frame (4), a main shaft (1302) rotatably installed on one side of the inside of the hollow frame (1301), a swing arm body (1304) rotatably installed on one side of the surface of the hollow frame (1301), and an I-shaped sliding plate (1307) slidably installed on one end of the surface of the hollow frame (1301), one end of the surface of the main shaft (1302) is fixed with a rotating disc (1303), the edge of the surface of the rotating disc (1303) is provided with a first protruding column (1305) penetrating to the outside of the swing arm body (1304), one end of the surface of the swing arm body (1304) is provided with a straight slot for the first protruding column (1305) to penetrate out, and the other end of the main shaft (1302) is provided with a belt drive structure three (1306) for connecting with the output shaft of the stepping motor.

2. The bamboo-plastic composite material processing device according to claim 1, characterized in that: The sideband type multi-roller feeding module (5) comprises driving rollers (501) rotatably installed on both sides inside the conveying frame (4), driven rollers (504) and L-shaped plates (502) fixed on the inner walls in front of and behind the conveying frame (4), a plurality of equally-spaced material supporting rollers (503) rotatably installed between the two L-shaped plates (502), and belt drive structures two (505) for power transmission installed on both ends of the surfaces of the driving rollers (501), the driven rollers (504) and the plurality of material supporting rollers (503).

3. The bamboo-plastic composite material processing device according to claim 2, characterized in that: The material supporting rollers (503) are stainless steel rollers, and the pipes of the double-pipe multi-column water cooling module (7) are located between the material supporting rollers (503) and the heat dissipation fans (11).

4. The bamboo-plastic composite material processing device according to claim 3, characterized in that: The rotating drive unit (6) comprises a stepping motor installed on one side inside the conveying frame (4) and a synchronous wheel transmission structure for driving the rotation of the driving rollers (501) installed at the output end of the stepping motor, and the output shaft of the rotating drive unit (6) is also connected in power with the swing arm type gear and rack reciprocating transmission assembly (13) and drives one of the rotating shafts (9) to rotate forward and backward.

5. The bamboo-plastic composite material processing device according to claim 1, characterized in that: The surface of the I-shaped sliding plate (1307) is fixed with a second protruding column (1308), the top end of the swing arm body (1304) is provided with a U-shaped gap for the second protruding column (1308) to pass through, and the back of the I-shaped sliding plate (1307) is provided with a gear and rack transmission structure (1309) for driving one of the rotating shafts (9) to rotate.

6. The bamboo-plastic composite material processing device according to claim 5, characterized in that: The gear and rack transmission structure (1309) comprises a protruding seat fixed on the back of the I-shaped sliding plate (1307), a rack installed at the top end of the protruding seat, and a driven gear fixed at one end of one of the rotating shafts (9), the driven gear and the rack are engaged with each other, and one side outer wall of the hollow frame (1301) is provided with a gap groove for arranging the belt drive structure three (1306).

7. The bamboo-plastic composite material processing device according to claim 3, characterized in that: The double-pipe multi-column water cooling module (7) comprises a rack (701) fixed on one side outer wall of the conveying frame (4), a conveying pump (702) installed at the bottom of the rack (701), and a Y-shaped double-pass liquid inlet pipe group (703) installed on the liquid outlet of the conveying pump (702), one side inside the conveying frame (4) is provided with a Y-shaped double-pass liquid discharge pipe group (706) corresponding to the Y-shaped double-pass liquid inlet pipe group (703), and two straight pipes (704) are installed between the Y-shaped double-pass liquid discharge pipe group (706) and the Y-shaped double-pass liquid inlet pipe group (703). 8.The bamboo-plastic composite material processing device according to claim 7, characterized in that: A plurality of longitudinal pipes (705) are equally spaced installed on the two straight pipes (704), the central axis extension direction of the longitudinal pipes (705) is perpendicular to the central axis extension direction of the straight pipes (704), and the bottom end of the Y-shaped double-pass liquid discharge pipe group (706) is provided with an on-off valve (707).

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