Rapid cooling equipment for plastic particle extrusion die head

Abstract

The utility model relates to the technical field of plastic production, and discloses plastic particle extrusion die head rapid cooling equipment which comprises an extruder, a hopper is fixedly installed on the upper surface of the extruder, the lower end of the hopper is communicated with the interior of the extruder, a die head is fixedly installed at the right end of the hopper, and L-shaped plates are fixedly installed on the upper surface and the lower surface of the right end of the hopper. The connecting mechanism is arranged on the two L-shaped plates, the connecting mechanism comprises a connecting plate and an annular plate, and a motor 16, a threaded rod 15 and an electric push rod 10 are matched to quickly connect and detach the cooling water pipe, so that the time for connecting and detaching the cooling pipe is greatly shortened, the time for replacing the die head is shortened, and the preparation efficiency of the whole equipment is improved; and the telescopic length of the electric push rod 10 and the rotation of the threaded rod 15 can be adjusted to adapt to the die heads 3 with different sizes and installation positions, and the application range of the equipment is widened.

Description

A rapid cooling device for plastic particle extrusion die Technical Field

[0001] This utility model relates to the field of plastic production technology, specifically to a rapid cooling device for plastic particle extrusion die. Background Technology

[0002] Plastic particles are granular materials composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. They are lightweight, corrosion-resistant, and have good insulation properties, and are widely used in various fields. Plastic particle extrusion is an important plastic molding process. First, plastic particles are added to the extruder barrel. Through heating and screw rotation, the particles gradually melt into a fluid melt. Then, the melt is extruded through a die of a specific shape to form a continuous profile consistent with the die shape. Finally, after cooling, shaping, and other subsequent processing, various plastic products are obtained, such as pipes, sheets, and profiles. This process has high production efficiency, can achieve automated continuous production, and has stable product quality.

[0003] Currently, in the extrusion production of plastic particles, the extrusion die plays a crucial role, determining the final shape of the extruded product. During the extrusion process, the molten plastic transfers heat to the die as it passes through it, causing the die temperature to rise. Currently, when using the die, operators need to connect cooling water pipes to the cooling pipes on the die after installation to cool it. This means that the cooling water pipes need to be disassembled every time the die is replaced, which is cumbersome, prolongs the replacement time, and reduces the efficiency of the die. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rapid cooling device for plastic particle extrusion dies. This solves the problem that when using a die, operators need to connect cooling water pipes to the cooling pipes on the die after installation to cool it. This results in the need to disassemble the cooling water pipes when replacing the die, which is cumbersome, prolongs the replacement time, and reduces the efficiency of the die.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for plastic particle extrusion die head, including an extruder, a hopper fixedly installed on the upper surface of the extruder, the lower end of the hopper communicating with the interior of the extruder, a die head fixedly installed on the right end of the hopper, and L-shaped plates fixedly installed on both the upper and lower surfaces of the right end of the hopper.

[0008] The connecting mechanism is set on two L-shaped plates and includes a connecting plate and an annular plate. A cooling plate is fixedly installed on the outer surface of the die head. A rectangular groove is opened on the lower surface of the upper L-shaped plate. A slider is slidably installed inside the rectangular groove. An electric push rod is fixedly installed on the lower surface of the slider. The connecting plate is fixedly installed on the telescopic end of the electric push rod. An L-shaped connecting pipe is fixedly installed on the front surface of the connecting plate. The lower end of the L-shaped connecting pipe extends through the lower surface of the connecting plate. The annular plate is fixedly installed on the lower end of the outer surface of the L-shaped connecting pipe.

[0009] Preferably, the connecting mechanism further includes an annular sealing plate and a water inlet connecting pipe. The annular sealing plate is fixedly connected to the lower surface of the L-shaped connecting pipe, and the water inlet connecting pipe is fixedly installed on the upper surface of the cooling plate. The lower end of the water inlet connecting pipe extends into the interior of the cooling plate, and the upper end of the water inlet connecting pipe is slidably inserted into the interior of the L-shaped connecting pipe. A water outlet connecting pipe is fixedly installed on the lower surface of the cooling plate at the position corresponding to the lower L-shaped plate, and the upper end of the water outlet connecting pipe extends into the interior of the cooling plate.

[0010] Preferably, a sealing groove is formed on the upper surface of the water inlet connection pipe at the position corresponding to the annular sealing plate.

[0011] Preferably, a threaded rod is rotatably mounted on the inner wall of the rectangular groove, the slider is threadedly connected to the threaded rod, and a motor is fixedly mounted inside the L-shaped plate on the upper side. The output end of the motor rotates through the interior of the rectangular groove, and the motor is fixedly connected to the threaded rod.

[0012] Preferably, there are two connecting mechanisms, which are respectively set on two L-shaped plates and arranged in a mirror image.

[0013] Preferably, each of the two L-shaped connecting pipes has a connecting hose fixedly installed at one end away from the corresponding connecting plate.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a rapid cooling device for plastic particle extrusion die heads, which has the following beneficial effects:

[0016] 1. This rapid cooling device for plastic particle extrusion die heads uses a combination of a motor, threaded rod, and electric push rod to quickly connect and disconnect cooling water pipes, greatly shortening the time for connecting and removing cooling pipes, reducing die head replacement time, improving overall equipment preparation efficiency, reducing downtime, and increasing die head replacement efficiency. Furthermore, the device allows adjustment of the extension length of the electric push rod and the rotation of the threaded rod to accommodate dies of different sizes and installation positions, thus expanding its applicability. Attached Figure Description

[0017] Figure 1 is a top view of the overall structure of the rapid cooling device for the plastic particle extrusion die of this utility model.

[0018] Figure 2 is a cross-sectional structural diagram of the connection mechanism of this utility model;

[0019] Figure 3 is a schematic diagram of the internal cross-sectional front view of the cooling plate of this utility model;

[0020] Figure 4 is a magnified structural diagram of point A in Figure 3.

[0021] In the diagram: 1. Extruder; 2. Hopper; 3. Die head; 4. L-shaped plate; 5. Connecting plate; 6. Annular plate; 7. Cooling plate; 8. Rectangular groove; 9. Slider; 10. Electric push rod; 11. L-shaped connecting pipe; 12. Annular sealing plate; 13. Water inlet connecting pipe; 14. Sealing groove; 15. Threaded rod; 16. Motor; 17. Connecting hose; 18. Water outlet connecting pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4. This utility model provides a new technical solution: a rapid cooling device for plastic particle extrusion die head, including an extruder 1, a hopper 2 fixedly installed on the upper surface of the extruder 1, the lower end of the hopper 2 communicating with the interior of the extruder 1, a die head 3 fixedly installed on the right end of the hopper 2, and L-shaped plates 4 fixedly installed on both the upper and lower surfaces of the right end of the hopper 2.

[0024] The connecting mechanism is set on two L-shaped plates 4. The connecting mechanism includes a connecting plate 5 and an annular plate 6. A cooling plate 7 is fixedly installed on the outer surface of the mold head 3. A rectangular groove 8 is opened on the lower surface of the upper L-shaped plate 4. A slider 9 is slidably installed inside the rectangular groove 8. An electric push rod 10 is fixedly installed on the lower surface of the slider 9. The connecting plate 5 is fixedly installed on the telescopic end of the electric push rod 10. An L-shaped connecting pipe 11 is fixedly installed on the front surface of the connecting plate 5. The lower end of the L-shaped connecting pipe 11 extends through to the lower surface of the connecting plate 5. The annular plate 6 is fixedly installed on the lower end of the outer surface of the L-shaped connecting pipe 11.

[0025] Furthermore, the connecting mechanism also includes an annular sealing plate 12 and a water inlet connecting pipe 13. The annular sealing plate 12 is fixedly connected to the lower surface of the L-shaped connecting pipe 11, and the water inlet connecting pipe 13 is fixedly installed on the upper surface of the cooling plate 7. The lower end of the water inlet connecting pipe 13 penetrates into the interior of the cooling plate 7, and the upper end of the water inlet connecting pipe 13 is slidably inserted into the interior of the L-shaped connecting pipe 11. A water outlet connecting pipe 18 is fixedly installed on the lower surface of the cooling plate 7 at the position corresponding to the lower L-shaped plate 4, and the upper end of the water outlet connecting pipe 18 penetrates into the interior of the cooling plate 7.

[0026] Furthermore, a sealing groove 14 is provided on the upper surface of the water inlet connection pipe 13 at the position corresponding to the annular sealing plate 12.

[0027] Furthermore, a threaded rod 15 is rotatably installed on the inner wall of the rectangular groove 8, and the slider 9 is threadedly connected to the threaded rod 15. A motor 16 is fixedly installed inside the L-shaped plate 4 on the upper side. The output end of the motor 16 rotatably passes through the interior of the rectangular groove 8, and the motor 16 is fixedly connected to the threaded rod 15.

[0028] Furthermore, there are two connecting mechanisms, which are respectively set on two L-shaped plates 4 and arranged in a mirror image.

[0029] Furthermore, each of the two L-shaped connecting pipes 11 has a connecting hose 17 fixedly installed at one end away from the corresponding connecting plate 5.

[0030] Furthermore, when using this equipment, the die head 3 is bolted to the right end of the extruder 1. Then, the motor 16 inside the upper L-shaped plate 4 can be started. The motor 16 drives the threaded rod 15 to rotate. Since the slider 9 is threadedly connected to the threaded rod 15, the slider 9 moves left and right in the rectangular groove 8, driving the connecting plate 5, the L-shaped connecting pipe 11, and the annular plate 6 to move left and right, corresponding to the water inlet connecting pipe 13. Then, the electric push rod 10 is started to push the connecting plate 5, so that the upper end of the water inlet connecting pipe 13 is inserted into the annular plate 6 at the lower end of the L-shaped connecting pipe 11. At this time, the annular sealing plate 12 is embedded in the sealing groove 14 on the upper surface of the water inlet connecting pipe 13, forming a sealing structure to prevent coolant leakage. The lower connecting mechanism operates in the same way to realize the connection between the water outlet connecting pipe 18 and the corresponding L-shaped connecting pipe 11. Next, the two connecting hoses 17 are connected to the external cooling water circulator to form a coolant circulation channel to cool the die head 3. When disassembly is required, simply activate the two electric push rods 10 to separate the connecting pipes. After disassembly, plastic raw materials are added from the hopper 2. Since the lower end of the hopper 2 is connected to the inside of the extruder 1, the plastic particles fall into the extruder 1 under the action of gravity. The extruder 1 heats and extrudes the plastic particles to plasticize them into a fluid state. Then, through the push of the screw and other components, the plasticized plastic is conveyed towards the die head 3. The plasticized plastic enters the die head 3 and is extruded into the desired shape of plastic product under the action of the specific shape and structure of the die head 3. At the same time, the connecting mechanism has completed the connection of the cooling pipes, and the coolant in the cooling plate 7 circulates to quickly cool the die head 3.

[0031] Structural Description: Extruder 1: The core equipment for extruding plastic particles. It plasticizes the plastic particles through internal heating and extrusion, and then conveys them to the die head 3 by the screw, realizing the transformation of plastic from a solid state to a formable state;

[0032] Hopper 2: Fixed on the upper surface of extruder 1, used to store plastic particles. Its lower end is connected to the inside of extruder 1. The plastic particles fall smoothly into extruder 1 by gravity, ensuring the supply of raw materials.

[0033] Die 3: Installed at the right end of hopper 2, it extrudes the plasticized plastic and its specific shape determines the shape of the plastic product. It is a key component that determines the shape of the product.

[0034] L-shaped plate 4: There are two in total, which are fixed on the upper and lower surfaces of the right end of the hopper 2 to provide an installation base for the connecting mechanism. The upper L-shaped plate 4 is provided with a rectangular groove 8 and other structures to cooperate with the connecting mechanism to realize the connection of cooling pipes.

[0035] Connecting plate 5: There are two in total. They are installed at the telescopic end of the electric push rod 10 and are used to connect the electric push rod 10 with components such as the L-shaped connecting pipe 11, transmit the power of the electric push rod 10, and realize the linkage between components.

[0036] Annular plate 6: There are two in total. They are fixed to the lower end of the outer surface of the L-shaped connecting pipe 11 to enhance the structural strength of the L-shaped connecting pipe 11. At the same time, they play an auxiliary positioning and stabilizing role in the connection of the cooling pipe.

[0037] Cooling plate 7: Fixed on the outer surface of the mold head 3, with a coolant channel inside. It cools the mold head 3 by cooperating with the water inlet connection pipe 13 and the water outlet connection pipe 18 to ensure the product molding quality.

[0038] Rectangular groove 8: There are two in total, which are opened on the lower surface of the upper L-shaped plate 4. The slider 9 is slidably installed inside, providing a moving track for the slider 9, so that the slider 9 can slide along the groove under the drive of the motor 16;

[0039] Slider 9: There are two sliders in total. They are slidably installed in the rectangular groove 8 and threadedly connected to the threaded rod 15. When the motor 16 drives the threaded rod 15 to rotate, they slide up and down along the rectangular groove 8, driving the lower part to move.

[0040] Electric push rod 10: There are two in total. They are installed on the lower surface of the slider 9. The telescopic end is connected to the connecting plate 5. By telescopic movement, the connecting plate 5 is pushed to achieve precise docking between the L-shaped connecting pipe 11 and the water inlet connecting pipe 13.

[0041] L-shaped connecting pipe 11: There are two in total. They are installed on the front surface of the connecting plate 5 and are used to connect the external cooling system with the inlet connecting pipe 13 and the outlet connecting pipe 18 to form a coolant circulation channel.

[0042] Annular sealing plate 12: There are two in total. They are fixed on the lower surface of the L-shaped connecting pipe 11 and cooperate with the sealing groove 14 on the water inlet connecting pipe 13 to form a sealing structure to prevent coolant leakage.

[0043] Water inlet connection pipe 13: installed on the upper surface of cooling plate 7, with the lower end penetrating into the interior of cooling plate 7 and the upper end slidingly inserted into L-shaped connection pipe 11 for introducing coolant;

[0044] Sealing groove 14: There are two in total, which are opened on the upper surface of the water inlet connection pipe 13 and cooperate with the annular sealing plate 12 to enhance the sealing of the connection and ensure the normal operation of the coolant circulation system.

[0045] Threaded rod 15: There are two in total. They are rotatably installed on the inner wall of the rectangular groove 8 and threadedly connected to the slider 9. They rotate under the drive of the motor 16, converting the rotational motion into the linear motion of the slider 9.

[0046] Motor 16: There are two motors in total. They are installed inside the upper L-shaped plate 4 and output power to drive the threaded rod 15 to rotate, providing a power source for the lifting and lowering movement of the connecting mechanism.

[0047] Connecting hose 17: There are two in total, fixed at one end of L-shaped connecting pipe 11, used to connect to external cooling water circulator, so that coolant can smoothly enter and flow out of the cooling system. The cooling water circulator is existing technology, and the specific model is LX-S10-BLP.

[0048] Water outlet connection pipe 18: installed on the lower surface of the cooling plate 7, with its upper end extending into the interior of the cooling plate 7, used to discharge the coolant that has absorbed heat inside the cooling plate 7. The connection end of the water outlet connection pipe 18 and the L-shaped connection pipe 11 is provided with the same sealing groove 14.

[0049] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for a plastic particle extrusion die, comprising an extruder (1), a hopper (2) fixedly mounted on the upper surface of the extruder (1), the lower end of the hopper (2) communicating with the interior of the extruder (1), and a die (3) fixedly mounted on the right end of the hopper (2), characterized in that: The upper and lower surfaces of the right end of the hopper (2) are fixedly installed with L-shaped plates (4); the connecting mechanism is set on the two L-shaped plates (4), the connecting mechanism includes a connecting plate (5) and an annular plate (6), the outer surface of the die head (3) is fixedly installed with a cooling plate (7), the lower surface of the upper L-shaped plate (4) is provided with a rectangular groove (8), the inside of the rectangular groove (8) is slidably installed with a slider (9), the lower surface of the slider (9) is fixedly installed with an electric push rod (10), the connecting plate (5) is fixedly installed on the telescopic end of the electric push rod (10), the front surface of the connecting plate (5) is fixedly installed with an L-shaped connecting pipe (11), the lower end of the L-shaped connecting pipe (11) extends through to the lower surface of the connecting plate (5), and the annular plate (6) is fixedly installed on the lower end of the outer surface of the L-shaped connecting pipe (11).

2. The rapid cooling device for a plastic particle extrusion die according to claim 1, characterized in that: The connecting mechanism also includes an annular sealing plate (12) and a water inlet connecting pipe (13). The annular sealing plate (12) is fixedly connected to the lower surface of the L-shaped connecting pipe (11). The water inlet connecting pipe (13) is fixedly installed on the upper surface of the cooling plate (7). The lower end of the water inlet connecting pipe (13) penetrates into the interior of the cooling plate (7). The upper end of the water inlet connecting pipe (13) is slidably inserted into the interior of the L-shaped connecting pipe (11). A water outlet connecting pipe (18) is fixedly installed on the lower surface of the cooling plate (7) at the position corresponding to the lower L-shaped plate (4). The upper end of the water outlet connecting pipe (18) penetrates into the interior of the cooling plate (7).

3. The rapid cooling device for a plastic particle extrusion die according to claim 2, characterized in that: A sealing groove (14) is provided on the upper surface of the water inlet connection pipe (13) at the position corresponding to the annular sealing plate (12).

4. The rapid cooling device for a plastic particle extrusion die as described in claim 1, characterized in that: A threaded rod (15) is rotatably installed on the inner wall of the rectangular groove (8). The slider (9) is threadedly connected to the threaded rod (15). A motor (16) is fixedly installed inside the L-shaped plate (4) on the upper side. The output end of the motor (16) rotates through the interior of the rectangular groove (8). The motor (16) is fixedly connected to the threaded rod (15).

5. The rapid cooling device for a plastic particle extrusion die according to claim 1, characterized in that: There are two connecting mechanisms in total. The two connecting mechanisms are respectively set on two L-shaped plates (4) and are arranged in a vertical mirror image.

6. The rapid cooling device for a plastic particle extrusion die according to claim 1, characterized in that: Each of the two L-shaped connecting pipes (11) has a connecting hose (17) fixedly installed at one end away from the corresponding connecting plate (5).

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