Feeding device of extruder

Abstract

The utility model discloses a feeding device of an extruder, and relates to the technical field of extruders, in particular to the feeding device of the extruder. A discharging port is formed in the bottom of the feeding cylinder, the feeding hopper is arranged at the top of the feeding cylinder and communicates with the interior of the feeding cylinder, the outer circumferential wall of the feeding cylinder is sleeved with a heat dissipation cylinder, the inner circumferential wall of the heat dissipation cylinder and the outer circumferential wall of the feeding cylinder define a heat dissipation channel, an air inlet is formed in the top of the heat dissipation cylinder, and an air outlet is formed in the bottom of the heat dissipation cylinder. A fan is arranged in the heat dissipation channel, and when the fan is started, air outside the heat dissipation barrel enters the heat dissipation channel from the air inlet and flows out from the air outlet. And the condition that along with work of the device, the temperature in the charging barrel is increased, the temperature of materials in the charging barrel is easily increased, the materials are adhered, and discharging is not facilitated is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of extruders, and more particularly to a feeding device for an extruder. Background Technology

[0002] Plastic material enters the extruder from the feed barrel and is conveyed forward by the rotation of the screw. During its forward movement, the material is heated by the barrel and subjected to shearing and compression by the screw, causing it to melt.

[0003] During use, the feeding cylinder is connected to the extruder through a pipe. As the device operates, the temperature inside the cylinder rises, which can easily cause the temperature of the material inside the feeding cylinder to rise, resulting in the material sticking together and making it difficult to feed. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a feeding device for an extruder. It improves the situation where, as the device operates, the temperature inside the barrel rises, which can easily lead to an increase in the temperature of the material inside the feeding barrel, causing the material to stick together and hindering feeding.

[0005] A feeding device for an extruder includes a feeding cylinder, a feeding funnel, and a stirring rod. The stirring rod is disposed inside the feeding cylinder. A drive motor for rotating the stirring rod is disposed at the top of the feeding cylinder. A discharge port is disposed at the bottom of the feeding cylinder. The feeding funnel is disposed at the top of the feeding cylinder and communicates with the interior of the feeding cylinder. A heat dissipation cylinder is fitted on the outer peripheral wall of the feeding cylinder. The inner peripheral wall of the heat dissipation cylinder and the outer peripheral wall of the feeding cylinder together form a heat dissipation channel. An air inlet is disposed at the top of the heat dissipation cylinder, and an air outlet is disposed at the bottom of the heat dissipation cylinder. A fan is disposed inside the heat dissipation channel. When the fan is started, air outside the heat dissipation cylinder enters the heat dissipation channel through the air inlet and flows out through the air outlet.

[0006] Optionally, the heat dissipation cylinder includes a connecting ring plate and a cylindrical ring plate. The cylindrical ring plate covers the outer peripheral wall of the feeding cylinder. The connecting ring plate is disposed on the top of the barrel ring plate and is used to fix it to the feeding cylinder. The air inlet is disposed on the connecting ring plate, and the air outlet is disposed on the bottom of the barrel ring plate.

[0007] Optionally, a cooling box is provided on the connecting ring plate, and a cooling inlet is provided on the top of the cooling box. The interior of the cooling box is connected to the air inlet.

[0008] Optionally, a cooling ring is provided inside the feeding cylinder, the stirring rod passes through the inner ring of the cooling ring, a cooling arm is provided on the outer peripheral wall of the cooling ring, and an outlet hole is provided on the inner wall of the feeding cylinder for the cooling arm to pass through, the cooling arm passing through the outlet hole and extending into the heat dissipation channel.

[0009] Optionally, a cooling wide plate is provided at the end of the cooling arm away from the cooling ring.

[0010] Optionally, a discharge pipe is connected to the discharge port, and the discharge pipe is used to connect to the extruder.

[0011] Optionally, a plurality of stirring plates are provided on the outer peripheral wall of the stirring rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the temperature inside the feeding cylinder rises, the fan is activated, allowing air from outside the heat dissipation cylinder to enter the heat dissipation pipe through the air inlet and flow out through the air outlet, creating flowing air within the heat dissipation pipe. This flowing air can lower the temperature of the outer wall of the feeding cylinder, thereby cooling the inside of the feeding cylinder. The cooling ring can also dissipate heat from the inside of the feeding cylinder. Since the flowing air can also cool the cooling arm, it can further cool the cooling ring, improving the heat dissipation efficiency of the cooling ring and thus reducing the temperature inside the feeding cylinder. This reduces the temperature rise of the material inside the feeding cylinder, preventing the material from sticking together and hindering feeding. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the feeding device of an extruder in one embodiment.

[0015] Figure 2 This is a top view of the feeding device of an extruder in one embodiment.

[0016] Figure 3 This is a bottom view of the feeding device of an extruder in one embodiment.

[0017] Figure 4 along Figure 3 Sectional view at point AA.

[0018] Figure 5 This is a schematic diagram of the cooling ring structure.

[0019] In the diagram: 1. Feeding cylinder; 2. Feeding funnel; 3. Stirring rod; 4. Drive motor; 5. Guide surface; 6. Air inlet; 7. Air outlet; 8. Fan; 9. Heat sink; 91. Connecting top plate; 92. Cylindrical ring plate; 10. Cooling box; 11. Cooling inlet; 12. Cooling ring; 13. Cooling arm; 14. Cooling wide plate; 15. Discharge pipe; 16. Stirring plate. Detailed Implementation

[0020] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The present invention provides a feeding device for an extruder, which improves the situation where the temperature inside the barrel rises as the device operates, which can easily lead to the temperature of the material inside the feeding barrel rising, causing the material to stick together and making feeding difficult.

[0022] like Figures 1 to 2 As shown, a feeding device for an extruder includes a feeding cylinder 1, a feeding funnel 2, and a stirring rod 3. The stirring rod 3 is disposed inside the feeding cylinder 1. A drive motor 4 for rotating the stirring rod 3 is disposed at the top of the feeding cylinder 1. A discharge port is disposed at the bottom of the feeding cylinder 1. The feeding funnel 2 is disposed at the top of the feeding cylinder 1 and communicates with the interior of the feeding cylinder 1. A heat dissipation cylinder 9 is fitted on the outer peripheral wall of the feeding cylinder 1. The inner peripheral wall of the heat dissipation cylinder 9 and the outer peripheral wall of the feeding cylinder 1 together form a heat dissipation channel. An air inlet 6 is disposed at the top of the heat dissipation cylinder 9, and an air outlet 7 is disposed at the bottom of the heat dissipation cylinder 9. A fan 8 is disposed inside the heat dissipation channel. When the fan 8 is started, air outside the heat dissipation cylinder 9 enters the heat dissipation channel through the air inlet 6 and flows out through the air outlet 7.

[0023] The heat dissipation cylinder 9 includes a connecting ring plate and a cylindrical ring plate 92. The cylindrical ring plate 92 covers the outer peripheral wall of the feeding cylinder 1. The connecting ring plate is located on the top of the barrel ring plate and is used to fix it to the feeding cylinder 1. The air inlet 6 is located on the connecting ring plate and the air outlet 7 is located at the bottom of the barrel ring plate.

[0024] A cooling box 10 is provided on the connecting ring plate, and a cooling inlet 11 is provided on the top of the cooling box 10. The interior of the cooling box 10 is connected to the air inlet 6.

[0025] The feeding cylinder 1 is equipped with a cooling ring 12 inside. The stirring rod 3 passes through the inner ring of the cooling ring 12. The outer peripheral wall of the cooling ring 12 is equipped with a cooling arm 13. The inner wall of the feeding cylinder 1 is equipped with an outlet hole for the cooling arm 13 to pass through. The cooling arm 13 passes through the outlet hole and extends into the heat dissipation channel.

[0026] A cooling wide plate 14 is provided at the end of the cooling arm 13 away from the cooling ring 12.

[0027] A discharge pipe 15 is connected to the discharge port, which is used to connect to the extruder.

[0028] Multiple stirring plates 16 are provided on the outer peripheral wall of the stirring rod 3.

[0029] A guide surface 5 is provided at the bottom of the feeding cylinder 1.

[0030] In use, connect the discharge pipe 15 to the extruder, then start the motor to rotate the stirring rod 3, and then feed the material through the feed funnel 2. After the extruder runs for a period of time, the temperature inside the feeding cylinder 1 rises. At this time, the cooling ring 12 and the cooling arm 13 play a role in heat dissipation, dispersing some of the heat inside the feeding cylinder 1 to the heat dissipation channel. First, put ice packs into the cooling box 10, adjust the position of the ice packs to prevent the ice packs from blocking the air inlet 6, and then start the fan 8. At this time, the air enters the cooling box 10 through the cooling inlet 11, and then flows into the heat dissipation channel through the air inlet 6. Then the flowing air will flow through the cooling arm 13, thereby cooling the cooling ring 12, thus reducing the temperature inside the feeding cylinder 1, thereby reducing the temperature rise of the material inside the feeding cylinder 1, which would cause the material to stick together and make feeding difficult.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. Figures 1 to 2As shown, a feeding device for an extruder includes a feeding cylinder 1, a feeding funnel 2, and a stirring rod 3. The stirring rod 3 is disposed inside the feeding cylinder 1. A drive motor 4 for rotating the stirring rod 3 is disposed at the top of the feeding cylinder 1. A discharge port is disposed at the bottom of the feeding cylinder 1. The feeding funnel 2 is disposed at the top of the feeding cylinder 1 and communicates with the interior of the feeding cylinder 1. A heat dissipation cylinder 9 is fitted on the outer peripheral wall of the feeding cylinder 1. The inner peripheral wall of the heat dissipation cylinder 9 and the outer peripheral wall of the feeding cylinder 1 together form a heat dissipation channel. An air inlet 6 is disposed at the top of the heat dissipation cylinder 9, and an air outlet 7 is disposed at the bottom of the heat dissipation cylinder 9. A fan 8 is disposed inside the heat dissipation channel. When the fan 8 is started, air outside the heat dissipation cylinder 9 enters the heat dissipation channel through the air inlet 6 and flows out through the air outlet 7.

[0033] The heat dissipation cylinder 9 includes a connecting ring plate and a cylindrical ring plate 92. The cylindrical ring plate 92 covers the outer peripheral wall of the feeding cylinder 1. The connecting ring plate is located on the top of the barrel ring plate and is used to fix it to the feeding cylinder 1. The air inlet 6 is located on the connecting ring plate and the air outlet 7 is located at the bottom of the barrel ring plate.

[0034] A cooling box 10 is provided on the connecting ring plate, and a cooling inlet 11 is provided on the top of the cooling box 10. The interior of the cooling box 10 is connected to the air inlet 6.

[0035] The feeding cylinder 1 is equipped with a cooling ring 12 inside. The stirring rod 3 passes through the inner ring of the cooling ring 12. The outer peripheral wall of the cooling ring 12 is equipped with a cooling arm 13. The inner wall of the feeding cylinder 1 is equipped with an outlet hole for the cooling arm 13 to pass through. The cooling arm 13 passes through the outlet hole and extends into the heat dissipation channel.

[0036] A cooling wide plate 14 is provided at the end of the cooling arm 13 away from the cooling ring 12.

[0037] A discharge pipe 15 is connected to the discharge port, which is used to connect to the extruder.

[0038] Multiple stirring plates 16 are provided on the outer peripheral wall of the stirring rod 3.

[0039] In use, connect the discharge pipe 15 to the extruder, then start the motor to rotate the stirring rod 3, and then feed the material through the feed funnel 2. After the extruder runs for a period of time, the temperature inside the feeding cylinder 1 rises. At this time, the cooling ring 12 and the cooling arm 13 play a role in heat dissipation, dispersing some of the heat inside the feeding cylinder 1 to the heat dissipation channel. First, put ice packs into the cooling box 10, adjust the position of the ice packs to prevent the ice packs from blocking the air inlet 6, and then start the fan 8. At this time, the air enters the cooling box 10 through the cooling inlet 11, and then flows into the heat dissipation channel through the air inlet 6. Then the flowing air will flow through the cooling arm 13, thereby cooling the cooling ring 12, thus reducing the temperature inside the feeding cylinder 1, thereby reducing the temperature rise of the material inside the feeding cylinder 1, which would cause the material to stick together and make feeding difficult.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device of an extruder, characterized by: Including the feeding cylinder (1), the feeding funnel (2) and the stirring rod (3), the stirring rod (3) is arranged in the inside of the feeding cylinder (1), the top of the feeding cylinder (1) is provided with the driving motor (4) for the rotation of the stirring rod (3), the bottom of the feeding cylinder (1) is provided with the discharge port, the feeding funnel (2) is arranged at the top of the feeding cylinder (1) and communicates with the inside of the feeding cylinder (1), the outer peripheral wall of the feeding cylinder (1) is sleeved with the heat dissipation cylinder (9), the inner peripheral wall of the heat dissipation cylinder (9) and the outer peripheral wall of the feeding cylinder (1) are combined to form a heat dissipation channel, the top of the heat dissipation cylinder (9) is provided with the air inlet (6), the bottom of the heat dissipation cylinder (9) is provided with the air outlet (7), the fan (8) is arranged in the heat dissipation channel, when the fan (8) is started, the air outside the heat dissipation cylinder (9) enters the heat dissipation channel through the air inlet (6) and flows out through the air outlet (7).

2. The feeding device of the extruder according to claim 1, characterized in that: The heat dissipation cylinder (9) includes a connecting ring plate and a cylindrical ring plate (92), the cylindrical ring plate (92) covers the outer peripheral wall of the feeding cylinder (1), the connecting ring plate is arranged at the top of the barrel ring plate, the connecting ring plate is used for being fixed with the feeding cylinder (1), the air inlet (6) is arranged on the connecting ring plate, and the air outlet (7) is arranged at the bottom of the barrel ring plate.

3. The feeding device of the extruder according to claim 2, characterized in that: The connecting ring plate is provided with a cooling box (10), the top of the cooling box (10) is provided with an inlet (11), and the inside of the cooling box (10) communicates with the air inlet (6).

4. The feeding device of the extruder according to claim 1, characterized in that: The inside of the feeding cylinder (1) is provided with a cooling ring (12), the stirring rod (3) penetrates the inner ring of the cooling ring (12), the outer peripheral wall of the cooling ring (12) is provided with a cooling arm rod (13), the inner wall of the feeding cylinder (1) is provided with a through hole for the cooling arm rod (13) to penetrate, and the cooling arm rod (13) penetrates the through hole and extends into the heat dissipation channel.

5. The feeding device of the extruder according to claim 4, characterized in that: The end of the cooling arm rod (13) away from the cooling ring (12) is provided with a cooling wide plate (14).

6. The feeding device of the extruder according to claim 1, characterized in that: The discharge port is connected with a discharge pipe (15), and the discharge pipe (15) is used for being connected with an extruder.

7. The feeding device of the extruder according to claim 1, characterized in that: The outer peripheral wall of the stirring rod (3) is provided with a plurality of stirring plates (16).

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