CN214027144U - Cold water circulating system and extruder - Google Patents
Cold water circulating system and extruder Download PDFInfo
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- CN214027144U CN214027144U CN202022199448.4U CN202022199448U CN214027144U CN 214027144 U CN214027144 U CN 214027144U CN 202022199448 U CN202022199448 U CN 202022199448U CN 214027144 U CN214027144 U CN 214027144U
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Abstract
The invention provides a cold water circulating system and an extruder, wherein the extruder comprises an extrusion cylinder, and the tail end of the extrusion cylinder is provided with an extrusion head; the extruder further comprises a cold water circulation system; the cold water circulating system comprises a cooling jacket, a cooling water tank and a refrigerator; the cooling sleeve is sleeved outside the extrusion head; the cooling jacket is provided with cooling channels which extend along the axial direction and are distributed along the circumferential direction, wherein one end of each of two adjacent cooling channels is connected with the cooling water tank through a water pipe, the end parts of all the cooling channels are communicated in sequence to form a circulating water path, and a water pump is arranged on each water pipe; the refrigerator is mounted on the cooling water tank and has a cold guide member extending into the cooling water tank. The cooling jacket is arranged on the extrusion head to cool the extrusion head, so that the temperature of material extrusion is reduced, and the plasticizing efficiency and quality are improved.
Description
Technical Field
The invention belongs to the technical field of extrusion equipment, and particularly relates to a cold water circulating system and an extruder.
Background
The extruder belongs to one of the types of plastic machinery, and can divide a machine head into a right-angle machine head, an oblique-angle machine head and the like according to the material flow direction of the machine head and the included angle of the central line of a screw.
The screw extruder depends on the pressure and the shearing force generated by the rotation of the screw, so that materials can be fully plasticized and uniformly mixed and are molded through a neck mold.
The production raw materials need to be heated to have certain fluidity and plasticity in the process of screw extrusion, but need to be rapidly cooled to be fixed and molded after being extruded from a head. The prior extruder usually utilizes natural cooling to complete plasticizing molding after extruding materials, so that when the room temperature is higher, the plasticizing time of the materials is prolonged, the problem of unqualified molding is caused, and the yield is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a cold water circulating system and extruder, through set up the cooling jacket at the extrusion head and reduce the exit temperature when the material is extruded to realize quick plastify.
The invention is realized by the following steps: a cold water circulating system comprises a cooling jacket, a cooling water tank and a refrigerator; the cooling jacket is provided with cooling channels which extend along the axial direction and are distributed along the circumferential direction, wherein one end of each of two adjacent cooling channels is connected with the cooling water tank through a water pipe, the end parts of all the cooling channels are sequentially communicated end to form a circulating water path, and a water pump is arranged on each water pipe; the refrigerator is mounted on the cooling water tank and has a cold guide member extending into the cooling water tank.
Further, the cold guide piece is provided with a plurality of S-shaped pipe bodies which are connected in an end-to-end mode.
Further, the refrigerator is a semiconductor refrigerator, the heating surface of the refrigerator faces the outside of the box, and the cooling surface of the refrigerator faces the inside of the box and is connected with the cold guide piece.
Further, a cooling fan is installed on the heating surface of the refrigerator.
Further, the inner circle surface of the cooling jacket is provided with two sealing grooves which are close to the corresponding ends of the cooling jacket and are internally provided with sealing rings.
Furthermore, a plurality of radiating fins are arranged on the outer circular surface of the cooling jacket.
Furthermore, the excircle surface of cooling jacket is provided with a plurality of protruding portions that extend along the axial and distribute along circumference, cooling channel one-to-one set up in the protruding portion, be connected with between two adjacent protruding portions the fin.
Furthermore, the cooling jacket is also provided with a plurality of water flowing holes which extend along the axial direction and are distributed along the circumferential direction, and two ends of each water flowing hole are respectively communicated to the corresponding end surface of the cooling jacket and are positioned on the inner side of the corresponding cooling channel in the radial direction.
The invention also provides an extruder, which comprises an extruding cylinder, wherein the tail end of the extruding cylinder is provided with an extruding head; the extruder further comprises a cold water circulation system; the cold water circulating system comprises a cooling jacket, a cooling water tank and a refrigerator; the cooling sleeve is sleeved outside the extrusion head; the cooling jacket is provided with cooling channels which extend along the axial direction and are distributed along the circumferential direction, wherein one end of each of two adjacent cooling channels is connected with the cooling water tank through a water pipe, the other end parts of all the cooling channels are sequentially communicated end to form a circulating water path, and a water pump is arranged on each water pipe; the refrigerator is mounted on the cooling water tank and has a cold guide member extending into the cooling water tank.
The invention has the following beneficial effects:
1. the cooling jacket is arranged on the extrusion head to cool the extrusion head, so that the temperature of material extrusion is reduced, and the plasticizing efficiency and quality are improved.
2. The invention reduces the water temperature through the semiconductor refrigerator, has smaller size, simple structure and convenient installation, and can reduce the manufacturing and maintenance cost of equipment and obtain better cooling effect.
3. The invention realizes natural heat dissipation of the cooling jacket through the heat dissipation fins, assists water-cooling heat dissipation to further improve cooling efficiency, and simultaneously utilizes the drain holes to avoid corrosion of the cooling jacket, so that cooling water is soaked into the extrusion head to cause corrosion.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a perspective view showing the structure of a cold water circulating system according to the present invention;
FIG. 3 is a left side view showing the structure of a cold water circulating system according to the present invention;
FIG. 4 is a perspective view showing the structure of a cooling water tank of the cold water circulation system shown in FIG. 2;
fig. 5 is a perspective view showing the structure of a cooling jacket in the cold water circulation system shown in fig. 2.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 5, an extruder 100 includes an extrusion cylinder 1, an extrusion head 2 is mounted at the end of the extrusion cylinder 1; the extruder 100 further includes a cold water circulation system 200; the cold water circulation system 200 includes a cooling jacket 3, a cooling water tank 6, and a refrigerator 11; the cooling water tank 6 is a sealed heat preservation box body, and the cooling jacket 3 is sleeved on the outer side of the extrusion head 2. The cooling jacket 3 is provided with cooling channels 3.1 which extend along the axial direction and are distributed along the circumferential direction, two adjacent cooling channels 3.1 are selected, one end of one cooling channel 3.1 is connected with a water outlet 6.1 of the cooling water tank 6 through a water inlet pipe 7, one end of the other cooling channel 3.1 is connected with a water inlet 6.2 of the cooling water tank 6 through a water outlet pipe 8, the end parts of all the cooling channels 3.1 are sequentially communicated end to form a circulating water path, cooling water enters the circulating water path from the water inlet pipe 7 and then is cooled by heat exchange with the cooling jacket 3, and then enters the cooling water tank 6 through the water outlet pipe 8 to obtain low-temperature cooling water by heat exchange again. A water pump 5 is arranged on the water inlet pipe 7 and used for conveying cooling water; the refrigerator 11 is mounted on the cooling water tank 6 and has a cold guide 10 extending into the cooling water tank 6. The cooling water tank 6 can be placed on the base of the extruder 100, thereby reducing the space occupation and making the whole apparatus more compact.
In an alternative embodiment, as shown in fig. 4, the cold conductor 10 has a plurality of "S" shaped tubes connected end to end. The contact area of the cold guide part 10 and cooling water is increased, so that the refrigeration efficiency is improved, the distribution is relatively dispersed, the temperature of different positions in the cooling water tank 6 is relatively uniformly reduced, and the refrigeration stability is improved.
In an alternative embodiment, the refrigerator 11 is a semiconductor refrigerator, the heating surface of which is arranged to face the outside of the cabinet, and the cooling surface of which is arranged to face the inside of the cabinet and is connected to the cold conductor 10. The semiconductor refrigerator is small in size, simple in structure and convenient to install, and can reduce equipment manufacturing and maintenance cost and obtain a good cooling effect.
In an alternative embodiment, as shown in fig. 3, a heat radiating fan 12 is installed on a heating surface of the refrigerator 11. The heat radiation efficiency of the heating surface can be accelerated by the heat radiation fan 12, so that the semiconductor refrigerator 11 is in a high-efficiency refrigeration state.
In an alternative embodiment, as shown in fig. 5, the inner circumferential surface of the cooling jacket 3 is provided with two sealing grooves 3.2, the sealing grooves 3.2 being located near the respective ends of the cooling jacket 3 and having sealing rings disposed therein. The sealing washer can prevent outside water from getting into the cooling jacket 3 and extrude between the head thereby further immerse and cause the corrosion in extruding the gap of head, improve life.
In an alternative embodiment, as shown in fig. 5, the outer circumferential surface of the cooling jacket 3 is provided with a plurality of cooling fins 3.4. The radiating fins 3.4 are sequentially arranged along the axial direction in an equidistant mode, and the radiating fins 3.4 and the cooling jacket 3 are integrally manufactured and molded. The cooling fins 3.4 may improve the heat dissipation efficiency of the cooling jacket 3.
In an alternative embodiment, as shown in fig. 5, the outer circumferential surface of the cooling jacket 3 is provided with a plurality of protrusions 3.5 extending in the axial direction and distributed in the circumferential direction, the cooling channels 3.1 are arranged in the protrusions 3.5 in a one-to-one correspondence, and the cooling fins 3.4 are connected between two adjacent protrusions 3.5. The cooling fins 3.4 are not only used for heat dissipation of the cooling jacket 3, but also for heat transfer between the two projections 3.5, so that a relatively uniform cooling is achieved.
In an alternative embodiment, as shown in fig. 5, the cooling jacket 3 is further provided with a plurality of water flow holes 3.3 extending in the axial direction and distributed in the circumferential direction, and two ends of the water flow holes 3.3 are respectively communicated to corresponding end surfaces of the cooling jacket 3 and are located at the inner side of the corresponding cooling channel 3.1 in the radial direction. Due to the change in temperature, chemical corrosion will occur at the location between the cooling channel 3.1 and the inner circumferential surface of the cooling jacket 3, which will cause cracks and thus cooling water to enter the extrusion head through the cracks. Through the existence of the water flowing hole 3.3, a crack is generated between the cooling channel 3.1 and the water flowing hole 3.3, at the moment, cooling water enters the water flowing hole 3.3 through the crack and is then discharged from two ends, so that the cooling water cannot enter the extrusion head, and the extrusion head is protected. In addition, as water flows out, the staff can know that the corrosion occurs at the moment, so that the cooling jacket 3 can be replaced in time, and the long-term stable operation of the equipment is ensured.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A cold water circulation system (200) is characterized by comprising a cooling jacket (3), a cooling water tank (6) and a refrigerator (11); the cooling jacket (3) is provided with cooling channels (3.1) which extend along the axial direction and are distributed along the circumferential direction, wherein one end of each of two adjacent cooling channels is connected with the cooling water tank (6) through a water pipe, the end parts of all the cooling channels (3.1) are sequentially communicated end to form a circulating water path, and a water pump (5) is arranged on each water pipe; the refrigerator (11) is mounted on the cooling water tank (6) and has a cold conductor (10) which projects into the cooling water tank (6).
2. A cold water circulation system (200) according to claim 1, wherein said cold conducting member (10) has a plurality of S-shaped tubular bodies which are endlessly connected.
3. A cold water circulation system (200) according to claim 1, wherein said refrigerator (11) is a semiconductor refrigerator, the heating surface of which is arranged to face the outside of the tank, and the cooling surface of which is arranged to face the inside of the tank and is connected to said cold conducting member (10).
4. A cold water circulation system (200) according to claim 3, wherein a heat radiating fan (12) is installed on a heating surface of the refrigerator (11).
5. A cold water circulation system (200) according to claim 1, wherein the inner circumferential surface of the cooling jacket (3) is provided with two sealing grooves (3.2), said sealing grooves (3.2) being located near respective ends of the cooling jacket (3) and having sealing rings arranged therein.
6. A cold water circulation system (200) according to claim 1, wherein the outer circumferential surface of the cooling jacket (3) is provided with cooling fins (3.4).
7. A cold water circulation system (200) according to claim 6, wherein the outer circumferential surface of the cooling jacket (3) is provided with a plurality of axially extending and circumferentially distributed protrusions (3.5), the cooling channels (3.1) are arranged in the protrusions (3.5) in a one-to-one correspondence, and the cooling fins (3.4) are connected between two adjacent protrusions (3.5).
8. A cold water circulation system (200) according to claim 1, wherein said cooling jacket (3) is further provided with a plurality of water flow holes (3.3) extending in the axial direction and distributed in the circumferential direction, and both ends of said water flow holes (3.3) are respectively connected to the corresponding end surfaces of said cooling jacket (3) and are located radially inside the corresponding cooling channels (3.1).
9. An extruder (100) comprises an extruding cylinder (1), wherein an extruding head (2) is installed at the tail end of the extruding cylinder (1); -characterized by further comprising a cold water circulation system (200) according to claim 1; the cooling jacket (3) is sleeved on the outer side of the extrusion head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199448.4U CN214027144U (en) | 2020-09-29 | 2020-09-29 | Cold water circulating system and extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199448.4U CN214027144U (en) | 2020-09-29 | 2020-09-29 | Cold water circulating system and extruder |
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| Publication Number | Publication Date |
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| CN214027144U true CN214027144U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022199448.4U Active CN214027144U (en) | 2020-09-29 | 2020-09-29 | Cold water circulating system and extruder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905721A (en) * | 2022-06-16 | 2022-08-16 | 西安赛百科洁医药包装有限公司 | Automatic production line for cylindrical films |
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2020
- 2020-09-29 CN CN202022199448.4U patent/CN214027144U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905721A (en) * | 2022-06-16 | 2022-08-16 | 西安赛百科洁医药包装有限公司 | Automatic production line for cylindrical films |
| CN114905721B (en) * | 2022-06-16 | 2024-02-27 | 西安赛百科洁医药包装有限公司 | Automatic production line for cylindrical films |
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