Efficient oil-cooled foaming extrusion device

Abstract

The utility model relates to the technical field of foaming production devices, and discloses an efficient oil-cooled foaming extrusion device which comprises a machine barrel, a feeding port is formed in the outer side of the machine barrel, a screw is rotationally connected to the middle of the machine barrel, a water jacket is arranged on the periphery of the machine barrel in a sleeving mode, a conveying and mixing assembly is arranged on the periphery of the screw, and the conveying and mixing assembly is connected with the machine barrel. And the mixing assembly is used for mixing a foaming agent and raw materials and comprises a feeding section, the feeding section is arranged on the periphery of the screw rod, and a conveying section and a foaming section are arranged on the periphery of the screw rod. According to the utility model, raw materials can be output under the action of the feeding section and the conveying section, and can be compressed under the action of the foaming section and the compression section, so that better compressive strength and surface hardness of the raw materials are achieved, foam holes of the raw materials are more uniform, and the overall working efficiency of the device is further improved; and meanwhile, the overall applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of foaming production equipment technology, and in particular to a high-efficiency oil-cooled foaming extrusion device. Background Technology

[0002] High-efficiency oil cooling typically uses cooling oil instead of traditional water cooling, providing more stable and precise temperature control under high-temperature conditions. The oil cooling system can maintain high temperature stability in foaming extrusion equipment because the boiling point of cooling oil is much higher than that of water, and it can effectively absorb the high-temperature heat of the equipment without evaporation. This characteristic is particularly suitable for foaming processes that require precise temperature control, avoiding problems such as uneven foam structure or foaming agent failure caused by temperature fluctuations.

[0003] A foaming extrusion unit is a device used to mix, plasticize, and extrude raw materials and foaming agents under precise temperature and pressure control. Its core function is to optimize the processing technology to form a uniform cell structure within the material, thereby endowing the foamed material with excellent lightweight, thermal insulation, and cushioning properties. However, in existing technologies, the screw design and process control of foaming extrusion units often have shortcomings, resulting in uneven mixing of raw materials and foaming agents during extrusion. Specifically, due to the limited shearing, conveying, and dispersing capabilities of the screw for raw materials and foaming agents, the foaming agent is difficult to distribute sufficiently and uniformly in the molten substrate, easily leading to localized areas of excessively high or low foaming agent concentration. This uneven mixing directly results in unstable cell structures, such as uneven cell size and distribution, the appearance of excessively large bubbles or areas of excessively high density, thus affecting the overall performance of the foamed material. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-efficiency oil-cooled foaming extrusion device, which aims to improve the problem of uneven mixing caused by insufficient external screw threads when mixing and extruding raw materials and foaming agents in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency oil-cooled foaming extrusion device includes a barrel, an inlet on the outer side of the barrel, a screw rotatably connected to the middle of the barrel, a water jacket on the outer periphery of the barrel, and a conveying and mixing component on the outer periphery of the screw for mixing foaming agent and raw materials.

[0007] The mixing component includes a feeding section, which is located on the outer periphery of the screw. The outer periphery of the screw is provided with a conveying section and a foaming section.

[0008] As a further description of the above technical solution:

[0009] The screw has a compression section and a mixing section on its outer periphery;

[0010] As a further description of the above technical solution:

[0011] The screw has a feeding section, a conveying section, a foaming section, a compression section and a mixing section arranged sequentially from right to left on its outer periphery;

[0012] As a further description of the above technical solution:

[0013] The water jacket is fixedly connected to a wear-resistant layer and a heat-conducting layer in the middle, and the heat-conducting layer is used to conduct heat to the raw material during extrusion.

[0014] As a further description of the above technical solution:

[0015] A connecting flange is fixedly connected to the outer wall of the water jacket, and a connecting pipe is fixedly connected to the middle of the water jacket;

[0016] As a further description of the above technical solution:

[0017] The water jacket is provided in multiple ways. One of the water jackets is fixedly connected to a connecting ring on one side, and another water jacket has a connecting groove on one side. The connecting ring and the connecting groove are engaged with each other.

[0018] As a further description of the above technical solution:

[0019] A large flange is fixedly connected to the outer wall of the water jacket, and an oil injection hole is provided on the outer wall of the water jacket for injecting cooling oil into the interior of the water jacket.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the raw material can be output through the feeding section and the conveying section, and the raw material can be compressed through the foaming section and the compression section to achieve better compressive strength and surface hardness, thereby making the foam cells of the raw material more uniform, thus improving the overall working efficiency of the device and improving the overall applicability of the device.

[0022] 2. In this utility model, the heat generated during the foaming process can be easily discharged through the wear-resistant layer and the heat-conducting layer, thereby controlling the temperature and increasing the service life of the water jacket, preventing the risk of oil leakage.

[0023] 3. In this utility model, cooling oil can be easily injected into the water jacket through the oil injection hole and the connecting pipe, which can easily absorb heat and prevent the device from generating too much heat during operation, while ensuring the safety of the device during use. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency oil-cooled foaming extrusion device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the connecting groove of a high-efficiency oil-cooled foaming extrusion device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the connecting pipe of a high-efficiency oil-cooled foaming extrusion device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the wear-resistant layer of a high-efficiency oil-cooled foaming extrusion device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the foaming section of a high-efficiency oil-cooled foaming extrusion device proposed in this utility model.

[0029] Legend:

[0030] 1. Screw; 2. Barrel; 3. Water jacket; 4. Large flange; 5. Feed inlet; 6. Connecting flange; 7. Connecting ring; 8. Connecting groove; 9. Connecting pipe; 14. Wear-resistant layer; 15. Heat-conducting layer; 16. Oil injection hole; 17. Feeding section; 18. Conveying section; 19. Foaming section; 20. Compression section; 21. Mixing section. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 5 The present invention provides an embodiment of a high-efficiency oil-cooled foaming extrusion device, comprising a barrel 2, an inlet 5 on the outer side of the barrel 2, which allows raw materials to be easily injected into the interior of the barrel 2 for mixing, conveying and extrusion, a screw 1 rotatably connected to the middle of the barrel 2, which allows the barrel 2 to easily limit the screw 1 and the raw materials, a water jacket 3 is fitted around the outer periphery of the barrel 2, and a conveying and mixing component is provided around the outer periphery of the screw 1 for mixing the foaming agent and the raw materials. The mixing component includes a feeding section 17, which is located around the outer periphery of the screw 1, and a conveying section 18 and a foaming section 19 are provided around the outer periphery of the screw 1.

[0033] Reference Figure 5The screw 1 has a compression section 20 and a mixing section 21 on its outer periphery. The screw 1 has a feeding section 17, a conveying section 18, a foaming section 19, a compression section 20 and a mixing section 21 on its outer periphery from right to left.

[0034] The feeding section 17 and conveying section 18 can conveniently output the raw materials, and under the action of the foaming section 19 and the compression section 20, the raw materials can be compressed to achieve better compressive strength and surface hardness, thereby making the foam cells of the raw materials more uniform and improving the overall applicability of the device.

[0035] Reference Figures 1-4 The water jacket 3 is fixedly connected to a wear-resistant layer 14 and a heat-conducting layer 15 in the middle. The heat-conducting layer 15 is used to conduct heat during the extrusion of the raw material. The wear-resistant layer 14 can conveniently extend the service life of the water jacket 3. The outer wall of the water jacket 3 is fixedly connected to a connecting flange 6, and the middle of the water jacket 3 is fixedly connected to a connecting pipe 9.

[0036] The connecting flange 6 can easily connect and fix multiple water jackets 3, while the connecting pipe 9 can easily inject cooling oil into the interior of the water jacket 3, thereby facilitating heat absorption and preventing excessive heat generation during operation of the device, while ensuring the safety of the device during use.

[0037] Reference Figure 1 and Figure 2 Multiple water jackets 3 are provided. One side of one water jacket 3 is fixedly connected to a connecting ring 7, and another side of the water jacket 3 is provided with a connecting groove 8. The connecting ring 7 and the connecting groove 8 are engaged. A large flange 4 is fixedly connected to the outer wall of the water jacket 3. An oil injection hole 16 is provided on the outer wall of the water jacket 3. The oil injection hole 16 is used to inject cooling oil into the interior of the water jacket 3.

[0038] The connecting groove 8 and the connecting ring 7 can limit the position of multiple water jackets 3 when they are connected, which makes it convenient for the staff to operate. One of the water jackets 3 has a large flange 4 fixedly connected to its outer wall, which can facilitate the connection and fixation of the water jacket 3. The oil injection hole 16 can conveniently inject cooling oil into the water jacket 3. At the same time, an external oil injection device can be connected to inject cooling oil into the water jacket 3 through the oil injection hole 16.

[0039] Working principle: When the raw material is extruded, the screw 1 will rotate. When the screw 1 rotates, it will drive the feeding section 17, conveying section 18, foaming section 19, compression section 20 and mixing section 21 to rotate simultaneously. Then, under the action of the foaming section 19 and the compression section 20, the raw material can be compressed to achieve better compressive strength and surface hardness, and the raw material can be mixed and extruded.

[0040] When oil is injected, cooling oil can be injected into the interior of the water jacket 3 through the connecting pipe 9 and the oil injection hole 16, so that the whole device absorbs heat through the cooling oil when it is working, and prevents the whole device from getting too hot when it is working.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high efficiency oil cooled foaming extrusion device comprising a barrel (2) characterised in that: The outer side of the machine barrel (2) is provided with a feeding port (5), the middle part of the machine barrel (2) is rotationally connected with a screw rod (1), the outer periphery of the machine barrel (2) is sleeved with a water jacket (3), the outer periphery of the screw rod (1) is provided with a conveying and mixing assembly for mixing the foaming agent and the raw material. The mixing assembly comprises a feeding section (17) which is arranged on the outer periphery of the screw rod (1), the outer periphery of the screw rod (1) is provided with a conveying section (18) and a foaming section (19).

2. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: The outer periphery of the screw rod (1) is provided with a compression section (20) and a mixing section (21).

3. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: The outer periphery of the screw rod (1) is sequentially provided with the feeding section (17), the conveying section (18), the foaming section (19), the compression section (20) and the mixing section (21) from right to left.

4. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: The middle part of the water jacket (3) is fixedly connected with a wear-resistant layer (14) and a heat-conducting layer (15), the heat-conducting layer (15) is used for heat conduction when the raw material is extruded.

5. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: The outer wall of the water jacket (3) is fixedly connected with a connecting flange (6), and the middle part of the water jacket (3) is fixedly connected with a communication pipe (9).

6. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: A plurality of water jackets (3) are arranged, one side of one of the water jackets (3) is fixedly connected with a connecting ring (7), and one side of another of the water jackets (3) is provided with a connecting groove (8), the connecting ring (7) and the connecting groove (8) are connected.

7. A high efficiency oil cooled foaming extrusion device as claimed in claim 1, wherein: The outer wall of the water jacket (3) is fixedly connected with a large flange (4), the outer wall of the water jacket (3) is provided with an oil injection hole (16), and the oil injection hole (16) is used for injecting cooling oil into the inside of the water jacket (3).

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