An extrusion device for manufacturing plastic packaging products

Abstract

The present invention relates to the field of plastic product processing equipment, and discloses an extrusion device for manufacturing plastic packaging products, including a workbench. Above the workbench, a conveying pipeline is fixedly installed through a bracket. At the end of the conveying pipeline, a die head is fixedly installed. Inside the conveying pipeline, a main shaft is movably installed. On the bottom end of the conveying pipeline, on the side far from the die head, a vertical feeding pipe is fixedly installed. On the side of the conveying pipeline close to the vertical feeding pipe, an arc-shaped feeding pipe is fixedly installed, and the end of the arc-shaped feeding pipe is communicated with the inside of the vertical feeding pipe. At the inner bottom of the workbench, a first motor is fixedly installed, and a movable shaft is fixedly installed at the driving end of the first motor. By chopping raw materials to accelerate plasticization, stacking first and then feeding to improve the compression efficiency, and the synergistic effect of cooling and magnetic field, the temperature of the raw materials is made uniform and the viscosity is appropriate, optimizing the state of entering the die head, and improving the product quality and production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of plastic product processing equipment, and specifically to an extrusion device for manufacturing plastic packaging products. Background Art

[0002] In the current plastic packaging product manufacturing industry, as the core production equipment, the performance of the extrusion device directly affects the product quality, production efficiency and economic benefits of the enterprise.

[0003] Traditional extrusion devices for manufacturing plastic packaging products have significant deficiencies in the raw material processing link. Commonly, the raw materials are directly put into the conveying pipeline for processing without pre-treatment. The raw material particles are uneven in size and different in shape, resulting in uneven heat transfer during the plasticization process, slow plasticization speed and poor effect. This not only greatly prolongs the processing time and increases energy consumption, but also affects the product quality due to inconsistent plasticization, causing defects such as bubbles and uneven density in the finished product.

[0004] In the raw material conveying and compressing stage, traditional devices mostly adopt a single uniform feeding method. The vertical feeding pipe conveys the raw materials to the conveying pipeline at a constant speed, which cannot meet the compressing requirements of the subsequent compressing auger for the raw materials. The raw materials enter the compressing section loosely, with low compressing efficiency and difficult to achieve the ideal compression ratio, thus affecting the quality of the plastic melt and the forming effect, and reducing the physical properties of the product, such as strength and toughness.

[0005] When it comes to the temperature control of the plastic melt, traditional extrusion devices are even more inadequate. Generally, only simple cooling pipes are relied on to cool the conveying pipeline, with a single cooling method and poor effect. The temperature distribution of the plastic melt is uneven during the conveying process, and the fluidity difference is large when entering the die head, resulting in uneven filling of the die cavity, difficult control of the product thickness, and surface defects such as corrugations and depressions, seriously affecting the product appearance and dimensional accuracy. Moreover, due to the inability to accurately control the speed and flow rate of the plastic entering the die head, problems such as spraying and eddy currents are easily generated, further reducing the product quality and increasing the defective rate. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an extrusion device for manufacturing plastic packaging products, which solves the problems of slow raw material plasticization, low compressing efficiency and poor product quality of traditional extrusion devices. By chopping the raw materials to accelerate plasticization, changing the feeding method to improve the compressing efficiency, and using a cooling chamber and a magnetic ring to cooperate in temperature control, the product forming effect is optimized.

[0007] To achieve the above object, the present invention is realized by the following technical solutions: An extrusion device for manufacturing plastic packaging products, including a workbench, above which a conveying pipeline is fixedly installed through a bracket, at the end of the conveying pipeline, a die head is fixedly installed, inside the conveying pipeline, a main shaft is movably installed, on the bottom end of the conveying pipeline, away from one side of the die head, a vertical feeding pipe is fixedly installed, on the side of the conveying pipeline close to the vertical feeding pipe, an arc-shaped feeding pipe is fixedly installed and the end of the arc-shaped feeding pipe is communicated with the inside of the vertical feeding pipe, on the inner bottom of the workbench, a first motor is fixedly installed, at the driving end of the first motor, a movable shaft is fixedly installed, inside the vertical feeding pipe, a rotating shaft is movably arranged and the end of the rotating shaft extends into the inside of the workbench, on the outer diameter of the rotating shaft located inside the vertical feeding pipe, an upper feeding auger is fixedly installed, on the outer diameter of the conveying pipeline close to the die head, a heat-conducting aluminum ring is movably installed, on the top side of the workbench, through a bearing mounting seat, a magnetic ring is movably arranged and the magnetic ring wraps the heat-conducting aluminum ring inside, above the conveying pipeline, close to one side of the heat-conducting aluminum ring, a cooling chamber is fixedly installed, at the bottom of the cooling chamber, a cooling bin is opened, inside the cooling chamber, a short shaft is movably installed, and the bottom end of the short shaft extends into the inside of the cooling bin and a cross brush plate is fixedly installed.

[0008] Preferably, on the outer diameter of the main shaft away from the die head, a first conveying auger is fixedly installed, on the outer diameter of the middle part of the main shaft, a compression auger is fixedly installed, on the outer diameter of the main shaft close to the die head, a second conveying auger is fixedly installed, at the position of the top of the conveying pipeline close to the compression auger, an electric heater is fixedly installed.

[0009] Preferably, at the top end of the arc-shaped feeding pipe, a feeding hopper is fixedly installed, the end of the movable shaft extends to the outside of the workbench and a driving wheel is fixedly installed, one end of the main shaft away from the die head penetrates the inner side wall of the conveying pipeline and the inside of the arc-shaped feeding pipe and a driven wheel is fixedly installed, between the outer diameters of the driving wheel and the driven wheel, a synchronous belt is connected, on the outer diameter of one side of the main shaft located inside the arc-shaped feeding pipe, a plurality of cutting knives are fixedly installed.

[0010] Preferably, on the outer diameter of the bottom of the rotating shaft, a movable block is installed through a bearing, on one side of the inner bottom of the workbench, a rotating rod is movably installed, on the outer diameter of the middle part of the rotating rod, a bidirectional spiral groove is opened, on the inner bottom side of the movable block, a round head pin is fixedly connected and the end of the round head pin is movably arranged inside the bidirectional spiral groove, on the outer diameter of one side of the movable shaft, a worm is fixedly installed, on the outer diameter of the lower side of the rotating rod, a worm gear is fixedly installed, and the inner ends of the worm and the worm gear are meshed and connected.

[0011] Preferably, the end of the rotating rod extends into the inside of the rotating shaft and is fixedly connected with splines at both ends. Key grooves are respectively formed on both sides of the inner bottom of the rotating shaft. The outer ends of the splines are movably arranged inside the corresponding key grooves. Two guide rods are fixedly installed on the inner top of the workbench. Guide grooves are respectively formed on both sides inside the movable block. The ends of the guide rods are movably arranged inside the corresponding guide grooves.

[0012] Preferably, the top end of the short shaft extends above the cooling chamber and is fixedly installed with a driven bevel gear. A second motor is fixedly installed on one side of the top end of the cooling chamber. The driving end of the second motor is fixedly installed with a transmission shaft. A driving bevel gear is fixedly installed on the outer diameter of the middle part of the transmission shaft, and the driving bevel gear is meshed with the inner end of the driven bevel gear.

[0013] Preferably, a transmission gear is fixedly installed on the outer diameter of one side of the transmission shaft. An internal gear is fixedly installed on the inner wall of the magnetic ring, and the internal gear is meshed with the inner end of the transmission gear. A cooling water inlet pipe is fixedly installed on one side of the cooling chamber, and the end of the cooling water inlet pipe extends into the inside of the cooling bin.

[0014] The present invention provides an extrusion device for manufacturing plastic packaging products. It has the following beneficial effects:

[0015] 1. By arranging a cutting knife in the arc-shaped feeding pipe, the raw material is chopped before entering the conveying pipeline, so that the raw material has a larger specific surface area, the contact area with the heating device is increased, and it can absorb heat more quickly and evenly during the plasticization process, accelerating the plasticization speed, shortening the processing time, and improving the production efficiency.

[0016] 2. The present invention adopts the method of first piling up the raw material in the vertical feeding pipe and then sending the raw material into the conveying pipeline through the up-and-down reciprocating movement of the rotating shaft. Compared with the traditional uniform feeding, the compression efficiency of the raw material in the later stage can be improved.

[0017] 3. By utilizing the synergistic effect of the cooling chamber and the magnetic ring, the raw material in the conveying pipeline is continuously cooled. On the one hand, the temperature distribution of the plastic melt is made more uniform, the fluidity is more consistent, and when entering the die head, it can fill the die cavity more evenly, reducing problems such as uneven product thickness and uneven surface; on the other hand, the viscosity of the raw material is increased and the flow rate is slowed down, which is beneficial to better controlling the speed and flow rate of the plastic entering the die head, avoiding adverse phenomena such as spraying and eddy currents caused by too fast flow rate, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the present invention;

[0019] Figure 2 is a schematic diagram of the internal structure of the conveying pipeline in the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the workbench of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the movable block in the present invention;

[0022] Figure 5 is Figure 1 the enlarged view at position A in;

[0023] Figure 6 This is a schematic diagram of the internal structure of the cooling chamber in the present invention.

[0024] Among them, 1. Workbench; 2. Conveying pipeline; 3. Die head; 4. Main shaft; 5. First conveying auger; 6. Compression auger; 7. Second conveying auger; 8. Vertical feeding pipe; 9. Arc feeding pipe; 10. Feeding hopper; 11. First motor; 12. Movable shaft; 13. Driving wheel; 14. Driven wheel; 15. Synchronous belt; 16. Cutting knife; 17. Electric heater; 18. Rotating shaft; 19. Upward feeding auger; 20. Movable block; 21. Rotating rod; 22. Spline; 23. Keyway; 24. Double - helix groove; 25. Round - head pin; 26. Guide rod; 27. Guide groove; 28. Worm; 29. Worm gear; 30. Heat - conducting aluminum ring; 31. Magnetic ring; 32. Cooling chamber; 33. Cooling bin; 34. Short shaft; 35. Cross brush plate; 36. Driven bevel gear; 37. Second motor; 38. Transmission shaft; 39. Driving bevel gear; 40. Transmission gear; 41. Internal gear; 42. Cooling water inlet pipe. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] Please refer to the attached Figure 1 - attached Figure 6 , the embodiment of the present invention provides an extrusion device for manufacturing plastic packaging products, as Figure 1As shown in the figure, it includes a workbench 1. The workbench 1 serves as the support foundation for the entire device. Its material is strong and durable, capable of stably carrying each component of the device. Above the workbench 1, a conveying pipeline 2 is fixedly installed through a sturdy bracket. The bracket is precisely designed and installed to ensure that the conveying pipeline 2 is firmly located above the workbench 1, providing a stable channel for the subsequent conveying of materials. At the end of the conveying pipeline 2, a die head 3 is fixedly installed. The die head 3 is a key component for the final formed plastic products. Its shape and structure are customized according to the requirements of different plastic products to ensure that the raw materials can be precisely shaped into the required shape when passing through here. Inside the conveying pipeline 2, a main shaft 4 is movably installed. The main shaft 4 is the core driving component in the entire material conveying and processing process. It can rotate flexibly inside the conveying pipeline 2, driving other related components to work together.

[0028] On the side of the bottom end of the conveying pipeline 2 far from the die head 3, a vertical feeding pipe 8 is fixedly installed. The vertical feeding pipe 8 is used to vertically convey raw materials from below into the conveying pipeline 2 to ensure the stable supply of raw materials. On the side of the conveying pipeline 2 close to the vertical feeding pipe 8, an arc-shaped feeding pipe 9 is fixedly installed and the end of the arc-shaped feeding pipe 9 is connected to the inside of the vertical feeding pipe 8. The unique arc-shaped design of the arc-shaped feeding pipe 9 helps the raw materials to smoothly transfer from the feeding position to the vertical feeding pipe 8 under the action of gravity and subsequent power. At the inner bottom of the workbench 1, a first motor 11 is fixedly installed. The first motor 11 is one of the important power sources in the device. Its power is carefully matched to provide stable and sufficient power for a series of subsequent transmission components. The driving end of the first motor 11 is fixedly installed with a movable shaft 12. After the first motor 11 is started, it precisely transmits the power to the movable shaft 12, driving it to rotate at high speed.

[0029] Inside the vertical feed pipe 8, a rotating shaft 18 is movably arranged, and the end of the rotating shaft 18 extends into the interior of the workbench 1. The rotating shaft 18 can rotate flexibly within the vertical feed pipe 8, and its design of extending into the interior of the workbench 1 facilitates connection and power transmission with other transmission components located inside the workbench 1. On the outer diameter of the rotating shaft 18 located inside the vertical feed pipe 8, an upper feeding auger 19 is fixedly installed. The upper feeding auger 19 rotates with the rotation of the rotating shaft 18 and can lift the raw materials inside the vertical feed pipe 8 upward, preparing for subsequent entry into the conveying pipe 2. On the outer diameter of one side of the conveying pipe 2 close to the die head 3, a heat-conducting aluminum ring 30 is movably installed. The heat-conducting aluminum ring 30 has good heat-conducting performance, can quickly absorb the heat of the plasticized raw materials inside the conveying pipe 2, and plays a key role in the subsequent cooling process. On the top side of the workbench 1, a magnetic ring 31 is movably arranged through a bearing mounting seat, and the magnetic ring 31 wraps the heat-conducting aluminum ring 30 inside. The magnetic ring 31 can rotate flexibly through the bearing mounting seat, and its wrapping design of the heat-conducting aluminum ring 30 provides conditions for subsequent driving of the heat-conducting aluminum ring 30 by magnetic field action and temperature control of the raw materials. Above the conveying pipe 2 and close to one side of the heat-conducting aluminum ring 30, a cooling chamber 32 is fixedly installed. The cooling chamber 32 is used to provide a cooling medium for the heat-conducting aluminum ring 30 to realize the temperature reduction operation of the raw materials inside the conveying pipe 2. At the bottom of the cooling chamber 32, a cooling bin 33 is opened. The cooling bin 33 is used to store and distribute the cooling medium to ensure that it can effectively act on the heat-conducting aluminum ring 30. Inside the cooling chamber 32, a short shaft 34 is movably installed. The short shaft 34 can rotate inside the cooling chamber 32 to transmit power to the components connected to its bottom. The bottom end of the short shaft 34 extends into the interior of the cooling bin 33 and is fixedly installed with a cross brush plate 35. The cross brush plate 35 rotates at a high speed inside the cooling bin 33 with the rotation of the short shaft 34 and can break up the cooling medium into fine water droplets to enhance the cooling effect.

[0030] In this embodiment, on the outer diameter of one side of the main shaft 4 far from the die head 3, a first conveying auger 5 is fixedly installed. The first conveying auger 5 rotates driven by the main shaft 4 and can push the raw materials entering the conveying pipe 2 towards the compression section. On the outer diameter of the middle part of the main shaft 4, a compression auger 6 is fixedly installed. The compression auger 6 is composed of an auger with a smaller pitch and can efficiently compress the raw materials to increase the density of the raw materials, preparing for subsequent plasticization and molding. On the outer diameter of one side of the main shaft 4 close to the die head 3, a second conveying auger 7 is fixedly installed. The second conveying auger 7 is responsible for smoothly conveying the compressed and plasticized raw materials to the die head 3 to ensure that the raw materials can enter the die head 3 at the required speed and flow rate. At the position of the top of the conveying pipe 2 close to the compression auger 6, an electric heater 17 is fixedly installed. The electric heater 17 can heat the raw materials inside the conveying pipe 2 to quickly plasticize them into a molten state to meet the requirements of subsequent processing.

[0031] Further, a feeding hopper 10 is fixedly installed at the top end of the arc-shaped feeding pipe 9. The opening of the feeding hopper 10 is relatively large, facilitating the operator to pour the raw materials for plastic product processing into it. After the raw materials enter the feeding hopper 10, they enter the arc-shaped feeding pipe 9 under the action of gravity. The end of the movable shaft 12 extends to the outside of the workbench 1 and is fixedly installed with a driving wheel 13. When the movable shaft 12 rotates, it drives the driving wheel 13 to rotate synchronously. As a key component in the transmission system, the driving wheel 13 transmits power to the subsequent components. One end of the main shaft 4 far from the die head 3 penetrates the inner side wall of the conveying pipe 2 and the inside of the arc-shaped feeding pipe 9 and is fixedly installed with a driven wheel 14. The outer diameters of the driving wheel 13 and the driven wheel 14 are connected by a synchronous belt 15. Through the transmission of the synchronous belt 15, the driving wheel 13 drives the driven wheel 14 to rotate, so that the main shaft 4 can rotate stably. A plurality of cutting knives 16 are fixedly installed on the outer diameter of one side of the main shaft 4 located inside the arc-shaped feeding pipe 9. When the main shaft 4 rotates, the cutting knives 16 rotate at high speed accordingly, and can cut up the raw materials entering the arc-shaped feeding pipe 9, creating conditions for subsequent rapid plasticization.

[0032] Further, a movable block 20 is installed on the outer diameter of the bottom of the rotating shaft 18 through a bearing. The movable block 20 is connected to the rotating shaft 18 through a bearing, enabling the movable block 20 to move flexibly relative to the rotating shaft 18 within a certain range. One side of the inner bottom of the workbench 1 is movably installed with a rotating rod 21. The rotating rod 21 can rotate flexibly on the inner bottom of the workbench 1 and undertakes the functions of transmitting power and achieving specific movements. A double helical groove 24 is formed on the outer diameter of the middle part of the rotating rod 21. The unique structural design of the double helical groove 24 provides a basis for realizing the up-and-down reciprocating movement of the movable block 20. One side of the inner bottom of the movable block 20 is fixedly connected with a round head pin 25, and the end of the round head pin 25 is movably arranged inside the double helical groove 24. When the rotating rod 21 rotates, the double helical groove 24 rotates accordingly, and the round head pin 25 slides in the double helical groove 24, thereby driving the movable block 20 to move. A worm 28 is fixedly installed on the outer diameter of one side of the movable shaft 12. When the movable shaft 12 rotates, the worm 28 rotates accordingly. As a transmission component, the worm 28 transmits the power of the movable shaft 12 to the worm gear 29. A worm gear 29 is fixedly installed on the outer diameter of the lower side of the rotating rod 21. The inner ends of the worm 28 and the worm gear 29 are meshed and connected. The rotation of the worm 28 drives the worm gear 29 and the rotating rod 21 to rotate through the meshing action.

[0033] Further, the end of the rotating rod 21 extends into the interior of the rotating shaft 18 and is fixedly connected with splines 22 at both ends. Key grooves 23 are formed on both sides of the inner bottom of the rotating shaft 18. The outer ends of the splines 22 are movably arranged inside the corresponding key grooves 23. This matching design of the splines 22 and the key grooves 23 enables the rotating rod 21 to drive itself to rotate and, at the same time, drive the rotating shaft 18 to rotate synchronously through the limiting cooperation of the splines 22 and the key grooves 23. Two guide rods 26 are fixedly installed on the inner top of the workbench 1. Guide grooves 27 are formed on both sides inside the movable block 20. The ends of the guide rods 26 are movably arranged inside the corresponding guide grooves 27. The cooperation of the guide rods 26 and the guide grooves 27 plays a role in limiting the movement of the movable block 20, ensuring that it can only move up and down reciprocally along the direction of the guide rods 26.

[0034] Further, the top end of the short shaft 34 extends above the cooling chamber 32 and is fixedly installed with a driven bevel gear 36. When the driven bevel gear 36 rotates, it can drive the short shaft 34 to rotate synchronously. A second motor 37 is fixedly installed on one side of the top end of the cooling chamber 32. The second motor 37 serves as the power source of the cooling system and provides power for a series of subsequent cooling operations. A transmission shaft 38 is fixedly installed on the driving end of the second motor 37. After the second motor 37 is started, it transmits power to the transmission shaft 38, driving it to rotate at a high speed. A driving bevel gear 39 is fixedly installed on the outer diameter of the middle part of the transmission shaft 38, and the driving bevel gear 39 is meshed with the inner end of the driven bevel gear 36. The rotation of the driving bevel gear 39 drives the driven bevel gear 36 and the short shaft 34 to rotate through the meshing effect.

[0035] Further, a transmission gear 40 is fixedly installed on the outer diameter of one side of the transmission shaft 38. An internal gear 41 is fixedly installed on the inner wall of the magnetic ring 31, and the internal gear 41 is meshed with the inner end of the transmission gear 40. When the transmission shaft 38 rotates, the transmission gear 40 rotates accordingly and drives the magnetic ring 31 to rotate through the meshing effect with the internal gear 41. A cooling water inlet pipe 42 is fixedly installed on one side of the cooling chamber 32, and the end of the cooling water inlet pipe 42 extends into the interior of the cooling bin 33. Cooling water can be introduced into the cooling bin 33 through the cooling water inlet pipe 42 to provide a cooling medium for the subsequent cooling operations.

[0036] Working principle: First, put the raw materials for plastic product processing into the hopper 10. Under the action of gravity, the raw materials enter the arc-shaped feeding pipe 9. At this time, start the first motor 11. The powerful power of the first motor 11 drives the movable shaft 12 to rotate at high speed. The movable shaft 12 drives the driving wheel 13 to rotate. Then, by using the stable transmission of the synchronous belt 15, it drives the driven wheel 14 and the main shaft 4 to rotate. The rotating main shaft 4 drives the cutting knife 16 to rotate at high speed, cutting the raw materials entering the arc-shaped feeding pipe 9. The shredded plastic raw materials have a larger specific surface area, increasing the contact area with the heating equipment, and can absorb heat more quickly and evenly during the plasticization process, thus accelerating the plasticization speed, greatly shortening the processing time, and significantly improving the production efficiency. The shredded raw materials enter the vertical feeding pipe 8 along the arc-shaped feeding pipe 9 by relying on gravity and the subsequent driving force. While the movable shaft 12 is rotating, it also drives the worm 28 to rotate. The rotating worm 28 drives the worm gear 29 and the rotating rod 21 to rotate through meshing transmission. The rotating rod 21 drives the rotating shaft 18 to rotate by using the precise limiting cooperation of the spline 22 and the keyway 23, thereby driving the upper feeding auger 19 on the outer diameter of the rotating shaft 18 to rotate, and using the rotating upper feeding auger 19 to transport the raw materials upward. There is still a certain distance between the end of the upper feeding auger 19 and the inside of the conveying pipe 2, and the raw materials will accumulate at the inner bottom of the vertical feeding pipe 8. At the same time, when the rotating rod 21 is rotating, it also drives the double spiral groove 24 on its outer diameter to rotate. Since the end of the round head pin 25 moves inside the double spiral groove 24, and the double spiral groove 24 is composed of two spiral grooves with opposite spiral directions but connected end to end, and by using the limiting effect of the guide rod 26 and the guide groove 27 on the movable block 20, when the rotating rod 21 rotates, using the sliding effect of the round head pin 25 in the movable double spiral groove 24, it will drive the movable block 20 to do reciprocating up and down movements, thereby driving the rotating shaft 18 to do reciprocating up and down movements. When the rotating shaft 18 moves upward, it will send the raw materials accumulated at the top of the vertical feeding pipe 8 into the inside of the conveying pipe 2. When the rotating shaft 18 moves downward, it will continue to accumulate raw materials at the top. Compared with the traditional uniform feeding method, by first accumulating the raw materials and then sending them into the conveying pipe 2 for transportation, the compression efficiency of the later raw materials can be improved. When the raw materials are sent into the conveying pipe 2, the rotating main shaft 4 drives the first conveying auger 5, the compression auger 6 and the second conveying auger 7 to rotate. The first conveying auger 5 is used to send the raw materials into the compression section. The compression auger 6 is composed of an auger with a smaller pitch and can efficiently compress the raw materials. At the same time, turn on the electric heater 17 to quickly heat the inside of the conveying pipe 2, so that the raw materials are quickly plasticized into a molten state, which is convenient for subsequent processing. Then the raw materials are sent to the second conveying auger 7 for transportation. During transportation, the plasticized raw materials will transfer heat to the heat-conducting aluminum ring 30. At this time, introduce cooling water into the cooling chamber 32 through the cooling water inlet pipe 42, and at the same time turn on the second motor 37. The second motor 37 drives the transmission shaft 38 to rotate, driving the driving bevel gear 39 to rotate.The rotating active bevel gear 39 drives the driven bevel gear 36 and the short shaft 34 to rotate, thereby driving the cross brush plate 35 in the cooling chamber 33 to rotate at a high speed. The high-speed rotating cross brush plate 35 is used to break the cooling water into small water droplets, which fall onto the outer surface of the heated heat-conducting aluminum ring 30. These small water droplets will evaporate quickly. The heat-conducting aluminum ring 30 will be cooled quickly and continuously by the principle of evaporation and heat absorption. At the same time, the transmission shaft 38 will also drive the transmission gear 40 to rotate when it rotates. The rotating transmission gear 40 will drive the internal gear 41 to rotate, thereby driving the magnetic ring 31 to rotate. When the magnetic ring 31 rotates, the magnetic flux of the heat-conducting aluminum ring 30 will change. At this time, the heat-conducting aluminum ring 30 will Under the action of Ampere force, it rotates along the direction of the magnetic field, and uses the continuously rotating and rapidly cooling heat-conducting aluminum ring 30 to continuously cool the raw materials in the conveying pipe 2, so that the temperature distribution of the plastic melt is more uniform, thereby making the fluidity more consistent. In this way, when entering the die head 3, it can fill the mold cavity more evenly, reducing the problems of uneven product thickness and uneven surface caused by uneven fluidity. At the same time, the viscosity of the raw materials is increased and the flow speed is slowed down, which is conducive to better controlling the speed and flow rate of the plastic entering the die head 3, avoiding the undesirable phenomena such as jetting and eddy currents caused by too fast flow rate, and improving product quality. Finally, the raw materials are injected into the die head 3 and plastic products are produced.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion device for manufacturing plastic packaging products, comprising a workbench (1), characterized in that: A conveying pipe (2) is fixedly mounted on the top of the workbench (1) via a bracket, a die head (3) is fixedly mounted on the end of the conveying pipe (2), a main shaft (4) is movably mounted inside the conveying pipe (2), a vertical feeding pipe (8) is fixedly mounted on the side of the bottom end of the conveying pipe (2) away from the die head (3), an arc-shaped feeding pipe (9) is fixedly mounted on the side of the conveying pipe (2) close to the vertical feeding pipe (8), and the end of the arc-shaped feeding pipe (9) is connected to the inside of the vertical feeding pipe (8), a first motor (11) is fixedly mounted on the inner bottom of the workbench (1), a movable shaft (12) is fixedly mounted on the driving end of the first motor (11), a rotating shaft (18) is movably arranged inside the vertical feeding pipe (8), and the end of the rotating shaft (18) extends To the inside of the workbench (1), the rotating shaft (18) is located inside the vertical feeding pipe (8) and is fixedly installed with an upward feeding auger (19), the outer diameter of the conveying pipe (2) close to the die head (3) is movably installed with a heat-conducting aluminum ring (30), the top side of the workbench (1) is movably provided with a magnetic ring (31) through a bearing mounting seat, and the magnetic ring (31) covers the heat-conducting aluminum ring (30) inside, and a cooling chamber (32) is fixedly installed on the upper side of the conveying pipe (2) close to the heat-conducting aluminum ring (30), and a cooling bin (33) is provided at the bottom of the cooling chamber (32), and a short shaft (34) is movably installed inside the cooling chamber (32), and the bottom end of the short shaft (34) extends to the inside of the cooling bin (33) and is fixedly installed with a cross brush plate (35); A movable block (20) is mounted on the outer diameter of the bottom of the rotating shaft (18) via a bearing, a rotating rod (21) is movably mounted on one side of the inner bottom of the workbench (1), a bidirectional spiral groove (24) is provided on the middle outer diameter of the rotating rod (21), a round head pin (25) is fixedly connected to one side of the inner bottom of the movable block (20), and the end of the round head pin (25) is movably arranged inside the bidirectional spiral groove (24), a worm (28) is fixedly mounted on the outer diameter of one side of the movable shaft (12), a worm wheel (29) is fixedly mounted on the lower outer diameter of the rotating rod (21), and the inner ends of the worm (28) and the worm wheel (29) are meshingly connected; The end of the rotating rod (21) extends to the inside of the rotating shaft (18) and is fixedly connected with a spline (22) at both ends; key slots (23) are provided on both sides of the inner bottom of the rotating shaft (18); the outer ends of the splines (22) are movably arranged inside the key slots (23) on the corresponding sides; two guide rods (26) are fixedly installed on the inner top of the workbench (1); guide slots (27) are provided on both sides of the inside of the movable block (20); and the ends of the guide rods (26) are movably arranged inside the guide slots (27) on the corresponding sides.

2. The extrusion device for manufacturing plastic packaging products according to claim 1, characterized in that: A first conveying auger (5) is fixedly mounted on the outer diameter of a side of the main shaft (4) away from the die head (3), a compression auger (6) is fixedly mounted on the middle outer diameter of the main shaft (4), a second conveying auger (7) is fixedly mounted on the outer diameter of a side of the main shaft (4) close to the die head (3), and an electric heater (17) is fixedly mounted on the top of the conveying pipe (2) close to the compression auger (6).

3. The extrusion device for manufacturing plastic packaging products according to claim 1, characterized in that: A hopper (10) is fixedly installed at the top of the arc-shaped feeding tube (9), the end of the movable shaft (12) extends to the outside of the workbench (1) and is fixedly installed with a driving wheel (13), the end of the main shaft (4) away from the die head (3) passes through the inner wall of the conveying pipe (2) and the inside of the arc-shaped feeding tube (9) and is fixedly installed with a driven wheel (14), the outer diameters of the driving wheel (13) and the driven wheel (14) are connected by a synchronous belt (15), and a plurality of cutters (16) are fixedly installed on the outer diameter of one side of the main shaft (4) located inside the arc-shaped feeding tube (9).

4. The extrusion device for manufacturing plastic packaging products according to claim 1, characterized in that: The top end of the short shaft (34) extends to the top of the cooling chamber (32) and is fixedly mounted with a driven bevel gear (36); a second motor (37) is fixedly mounted on one side of the top end of the cooling chamber (32); a transmission shaft (38) is fixedly mounted on the driving end of the second motor (37); a driving bevel gear (39) is fixedly mounted on the middle outer diameter of the transmission shaft (38); and the driving bevel gear (39) is meshedly connected with the inner end of the driven bevel gear (36).

5. The extrusion device for manufacturing plastic packaging products according to claim 4, characterized in that: A transmission gear (40) is fixedly mounted on the outer diameter of one side of the transmission shaft (38), an internal gear (41) is fixedly mounted on the inner wall of the magnetic ring (31), and the internal gear (41) is meshingly connected with the inner end of the transmission gear (40), and a cooling water inlet pipe (42) is fixedly mounted on one side of the cooling chamber (32), and the end of the cooling water inlet pipe (42) extends to the interior of the cooling bin (33).

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