High-temperature protection device for die head of extruder

Abstract

The high-temperature protection device comprises a die head assembly and a protection assembly, the protection assembly comprises a protection shell, a water cooling pipe, heat conduction blocks, heat conduction holes and elastic pieces, the protection shell is connected with the outer side of the die head assembly, the water cooling pipe is arranged in the protection shell, the heat conduction blocks are arranged in the protection shell, the water cooling pipe penetrates through the heat conduction blocks, and the heat conduction holes are formed in the heat conduction blocks. A plurality of heat conduction holes for the heat conduction blocks to move are formed in an inner cavity of the protection shell. According to the extruder die head high-temperature protection device, the protection shell is arranged on the outer side of the die head assembly, the water cooling pipe penetrating through the heat conduction block is arranged in the protection shell, and the heat conduction hole allowing the heat conduction block to move is formed in the protection shell, so that when the die head works, pressure can be applied to the heat conduction block through the elastic piece, and the heat conduction block makes contact with the die head assembly; and heat of the die head assembly is conducted to the water cooling pipe, so that the die head can be cooled through the water cooling pipe, and the situation that the temperature of the die head assembly is too high, workers touch the die head assembly by mistake during operation and are scalded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of die heads, in particular to a high-temperature protection device for an extruder die head. Background Art

[0002] The die head is a part of the mold that is responsible for molding the raw materials into a specific shape and size. The quality of the die head design directly affects the quality of the final product and production efficiency. In plastic injection molding, the die head is responsible for injecting the molten plastic into the mold cavity to form the required plastic parts.

[0003] A screw extruder is a device that uses screw extrusion, shearing, and stirring to heat and plasticize the rubber material, and then continues to extrude it after it is formed through a die. When extruding plastic, the raw materials are usually first heat-refined and plasticized under the action of screw extrusion. The raw materials in the die will continuously generate heat under the action of pressure, causing the die to generate high heat, which can reach more than 300 degrees Celsius. When working, workers may accidentally touch the high-temperature die, resulting in burns, posing a safety hazard. Utility Model Content

[0004] Aiming at the problem in the prior art that the die head temperature is high and workers are prone to accidentally touching it, resulting in burns, the utility model provides a high-temperature protection device for the die head of an extruder.

[0005] The utility model discloses a high-temperature protection device for an extruder die, comprising: a die assembly and a protection assembly; the protection assembly comprises a protection shell, a water-cooling pipe, a heat-conducting block, a heat-conducting hole and an elastic member, the protection shell is connected to the outer side of the die assembly, the water-cooling pipe is arranged in the protection shell, a plurality of the heat-conducting blocks are arranged in the protection shell, and the water-cooling pipe passes through the heat-conducting blocks, the inner cavity of the protection shell is provided with a plurality of heat-conducting holes for the movement of the heat-conducting blocks, and the heat-conducting holes pass through the protection shell at one end close to the die assembly, the end of the heat-conducting block away from the die assembly is connected to an elastic member, and the other end of the elastic member is connected to the inner cavity of the protection shell.

[0006] Preferably, the protection assembly further includes a magnetic block, which is disposed between the protection shell and the elastic member and is connected to both of them respectively, and generates suction to the heat conductive block.

[0007] Preferably, the protection assembly further includes an air cooling cavity, the inner cavity of the protection shell is provided with an air cooling cavity, and the water cooling pipe is located in the air cooling cavity.

[0008] Preferably, the air-cooling chamber is cylindrical.

[0009] Preferably, the protection component also includes an air inlet pipe and an air outlet pipe, the air inlet pipe is arranged on one side of the protection component, and one end of the air inlet pipe extends into the air cooling cavity, the air outlet pipe is arranged on one side of the protection component, and one end of the air outlet pipe extends into the air cooling cavity.

[0010] Preferably, the plurality of heat-conducting blocks are arranged at equal angles around the central axis of the die assembly.

[0011] Preferably, the protective shell consists of a first shell and a second shell, and the two are arranged opposite to each other.

[0012] Preferably, a heat insulating layer is provided on a side of the protective shell close to the die head assembly.

[0013] Compared with the prior art, the present invention provides a high temperature protection device for the die head of an extruder, which has the following beneficial effects:

[0014] 1. The high-temperature protection device of the extruder die head is provided with a protective shell on the outside of the die head assembly, and a water-cooling pipe passing through the heat-conducting block is provided in the protective shell, and a heat-conducting hole for the heat-conducting block to move is opened on the protective shell. When the die head is working, pressure can be applied to the heat-conducting block through the elastic member, so that the heat-conducting block contacts the die head assembly, and the heat of the die head assembly is transferred to the water-cooling pipe, so that the die head can be cooled through the water-cooling pipe, thereby preventing the temperature of the die head assembly from being too high, causing the staff to accidentally touch it during operation and cause burns.

[0015] 2. The extruder die head high temperature protection device sets up an air cooling chamber and inputs air into the air cooling chamber through the air inlet pipe, while cooling the die head assembly, water cooling pipe and heat conduction block with air, so that the die head assembly can be quickly cooled by the water cooling pipe, further improving the heat dissipation efficiency of the die head assembly.

[0016] 3. The high-temperature protection device of the extruder die head is configured by arranging a magnetic block at one end of the heat-conducting block away from the die head assembly, so that the heat-conducting block is in a state of compressing the elastic part under normal conditions, thereby ensuring that the protection component can be quickly sleeved onto the outside of the die head assembly. When the die head assembly is working, only after the die head assembly reaches a certain temperature, the magnetism of the magnetic block is weakened under the action of high temperature, so that the heat-conducting block contacts the die head assembly under the action of the elastic part, so that the water cooling and air cooling mechanisms can quickly cool the die head assembly, avoiding the situation where the die head assembly, under the cooperation of the air cooling chamber and the water cooling pipe, has too fast heat dissipation efficiency, resulting in the inability to reach the working temperature and affecting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2This is another structural diagram of the utility model;

[0019] Figure 3 This is another structural diagram of the utility model;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0021] In the accompanying drawings, 1. die head assembly; 2. protection assembly;

[0022] 21. Protective shell; 211. First shell; 212. Second shell; 213. Thermal insulation layer; 22. Water cooling pipe; 23. Heat conduction block; 24. Heat conduction hole; 25. Elastic part; 26. Magnetic block; 27. Air cooling chamber; 28. Air inlet pipe; 29. ​​Air outlet pipe. DETAILED DESCRIPTION

[0023] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0024] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0025] Reference Figure 1-Figure 3 , Figure 1 This is a schematic diagram of the structure of the utility model; Figure 2 This is another structural diagram of the utility model; Figure 3This is another structural schematic diagram of the present invention. A high-temperature protection device for an extruder die includes: a die assembly 1 and a protection assembly 2, the protection assembly 2 including a protective shell 21, a water-cooling pipe 22, a heat-conducting block 23, a heat-conducting hole 24 and an elastic member 25, the protective shell 21 is connected to the outside of the die assembly 1, the water-cooling pipe 22 is arranged in the protective shell 21, a plurality of heat-conducting blocks 23 are arranged in the protective shell 21, and the water-cooling pipe 22 passes through the heat-conducting blocks 23, the inner cavity of the protective shell 21 is provided with a plurality of heat-conducting holes 24 for the heat-conducting blocks 23 to move, and the heat-conducting hole 24 passes through the protective shell 21 at one end close to the die assembly 1, so that one end of the heat-conducting block 23 can contact the outer surface of the die assembly 1, the end of the heat-conducting block 23 away from the die assembly 1 is connected to the elastic member 25, and the other end of the elastic member 25 is connected to the inner cavity of the protective shell 21, and pressure is applied to the heat-conducting block 23 by the elastic member 25 to ensure that one end of the heat-conducting block 23 is always in contact with the outer surface of the die assembly 1.

[0026] The extruder die high temperature protection device is provided by arranging a protective shell 21 on the outer side of the die assembly 1, and arranging a water cooling pipe 22 that penetrates the heat conducting block 23 in the protective shell 21, and opening a heat conducting hole 24 for the heat conducting block 23 to move on the protective shell 21. When the die is working, pressure can be applied to the heat conducting block 23 through the elastic member 25, so that the heat conducting block 23 contacts the die assembly 1, and the heat of the die assembly 1 is transferred to the water cooling pipe 22, so that the die can be cooled by the water cooling pipe 22, thereby preventing the die assembly 1 from being overheated and causing the staff to accidentally touch it during operation, resulting in burns.

[0027] Reference Figure 4 , Figure 4 For this utility model Figure 2 The protective assembly 2 further includes a magnetic block 26 , which is disposed between the protective shell 21 and the elastic member 25 and is connected to both of them, and generates suction to the heat conducting block 23 .

[0028] Specifically, the temperature at which the magnetic force of the magnetic block 26 completely disappears is about 180 degrees Celsius, and the magnetism gradually weakens as the temperature rises. The heat conducting block 23 is made of iron.

[0029] The extruder die high temperature protection device is configured to provide a magnetic block 26 at one end of the heat conductive block 23 away from the die assembly 1, so that the heat conductive block 23 is in a state of compressing the elastic member 25 under normal conditions, thereby ensuring that the protection assembly 2 can be quickly sleeved onto the outside of the die assembly 1, and when the die assembly 1 is working, only after the die assembly 1 reaches a certain temperature, the magnetism of the magnetic block 26 is weakened under the action of high temperature, so that the heat conductive block 23 contacts the die assembly 1 under the action of the elastic member 25, so that the water cooling and air cooling mechanisms can quickly cool the die assembly 1, avoiding the die assembly 1 from having too fast heat dissipation efficiency under the cooperation of the air cooling chamber 27 and the water cooling pipe 22, resulting in the inability to reach the working temperature and affecting the production efficiency.

[0030] The protection assembly 2 further includes an air cooling cavity 27 . The inner cavity of the protection shell 21 is provided with the air cooling cavity 27 , and the water cooling pipe 22 is located in the air cooling cavity 27 .

[0031] The extruder die high temperature protection device is provided with an air cooling chamber 27 and inputs air into the air cooling chamber 27 through an air inlet pipe 28, and simultaneously performs air cooling and heat dissipation on the die assembly 1, the water cooling pipe 22 and the heat conducting block 23, thereby being able to cooperate with the water cooling pipe 22 to quickly dissipate heat for the die assembly 1, thereby further improving the heat dissipation efficiency of the die assembly 1.

[0032] The air cooling chamber 27 is cylindrical.

[0033] The protection component 2 also includes an air inlet pipe 28 and an air outlet pipe 29. The air inlet pipe 28 is arranged on one side of the protection component 2, and one end of the air inlet pipe 28 extends into the air cooling chamber 27. The air outlet pipe 29 is arranged on one side of the protection component 2, and one end of the air outlet pipe 29 extends into the air cooling chamber 27, so that the wind injected into the air cooling chamber 27 through the air inlet pipe 28 can gradually move in a spiral shape along the edge of the air cooling chamber 27 along the air cooling chamber 27 toward the air outlet pipe 29, thereby improving the movement path in the air cooling chamber 27 and improving the heat dissipation efficiency.

[0034] The plurality of heat conducting blocks 23 are arranged at equal angles around the central axis of the die assembly 1 , thereby ensuring that the heat conducting blocks 23 conduct heat from the die assembly 1 to the water cooling pipe 22 and the air cooling chamber 27 uniformly, thereby ensuring uniform cooling of the entire die assembly 1 .

[0035] The protective shell 21 consists of a first shell 211 and a second shell 212, which are arranged opposite to each other and connected by bolts, so that the protective shell 21 can be divided into two parts, the first shell 211 and the second shell 212, and the water-cooling tube 22 can be replaced, thereby improving the service life of the protective component 2.

[0036] A heat-insulating layer 213 is provided on one side of the protective shell 21 close to the die assembly 1, and the material of the heat-insulating layer 213 is asbestos, so that when the protective assembly 2 cools the die assembly 1, the temperature of the die assembly 1 can be isolated from the outside of the protective assembly 2 through the heat-insulating layer 213, and heat can only be conducted through the heat-conducting block 23, thereby ensuring that the temperature outside the protective assembly is low, and further avoiding the occurrence of burns due to accidental touch by the staff during operation.

[0037] In the description of the present invention, it should be understood that the terms "middle", "length", "upper", "lower", "front", "back", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature "on" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. "Multiple" means at least two, such as two or three, unless otherwise expressly specified or limited.

[0039] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] The above is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention without creative work should be included in the scope of protection of the present invention.

Claims

1. A high temperature protection device for an extruder die head, characterized in that: include: Die assembly (1); as well as A protective assembly (2) comprising a protective shell (21), a water-cooling pipe (22), a heat-conducting block (23), a heat-conducting hole (24) and an elastic member (25), wherein the protective shell (21) is connected to the outer side of the die assembly (1), the water-cooling pipe (22) is arranged in the protective shell (21), a plurality of the heat-conducting blocks (23) are arranged in the protective shell (21), and the water-cooling pipe (22) passes through the heat-conducting blocks (23), the inner cavity of the protective shell (21) is provided with a plurality of heat-conducting holes (24) for the heat-conducting blocks (23) to move, and the heat-conducting holes (24) pass through the protective shell (21) at one end close to the die assembly (1), the heat-conducting block (23) is connected to the elastic member (25) at one end away from the die assembly (1), and the other end of the elastic member (25) is connected to the inner cavity of the protective shell (21).

2. The high temperature protection device for an extruder die head according to claim 1, characterized in that: The protection assembly (2) further comprises a magnetic block (26), which is arranged between the protection shell (21) and the elastic member (25), and is respectively connected to both, and generates suction force on the heat conducting block (23).

3. The high temperature protection device for an extruder die head according to claim 1, characterized in that: The protection assembly (2) further comprises an air cooling cavity (27); the inner cavity of the protection shell (21) is provided with the air cooling cavity (27), and the water cooling pipe (22) is located in the air cooling cavity (27).

4. The high temperature protection device for an extruder die head according to claim 3, characterized in that: The air cooling chamber (27) is cylindrical.

5. The high temperature protection device for an extruder die head according to claim 3, characterized in that: The protection component (2) further includes an air inlet pipe (28) and an air outlet pipe (29), wherein the air inlet pipe (28) is arranged on one side of the protection component (2), and one end of the air inlet pipe (28) extends into the air cooling chamber (27), and the air outlet pipe (29) is arranged on one side of the protection component (2), and one end of the air outlet pipe (29) extends into the air cooling chamber (27).

6. The high temperature protection device for an extruder die head according to claim 1, characterized in that: The plurality of heat-conducting blocks (23) are arranged at equal angles around the central axis of the die assembly (1).

7. A high temperature protection device for an extruder die head according to any one of claims 1 to 6, characterized in that: The protective shell (21) consists of a first shell (211) and a second shell (212), and the two are arranged opposite to each other.

8. The extruder die head high temperature protection device according to any one of claims 1 to 6, characterized in that: A heat insulation layer (213) is provided on one side of the protective shell (21) close to the die head assembly (1).

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