Cooling device for plastic pipe extrusion

Abstract

The utility model discloses a cooling device for plastic pipe extrusion, relates to the technical field of cooling devices, and aims to solve the problem that in the prior art, when a plastic pipe with the density smaller than that of water is extruded and cooled, the plastic pipe is easy to float on the water surface, and the cooling sufficiency and efficiency of the plastic pipe are influenced. One end of the outer side of the cooling cylinder is fixedly provided with first ring covers, the cooling cylinder communicates with the first ring covers, the number of the first ring covers is three, the three first ring covers are arranged at intervals, a cooling ring box is fixedly installed in the first ring covers, and first through holes are formed in the cooling ring box. A first through hole is formed in the cooling ring box, a first annular inclined groove is formed in one side of the first through hole of the cooling ring box, a plurality of spray heads are arranged on the inner side of the first annular inclined groove, the spray heads are annularly arranged at intervals, the spray heads are fixedly connected with the cooling ring box, and a cold air conveying pipe is fixedly installed above the first ring cover and communicates with the cooling ring box.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for extruding plastic pipes. Background Art

[0002] Plastic pipes are made of high molecular polymers as the main raw materials and are processed through a specific production process. Plastic pipes are generally extruded through extrusion equipment during production and processing. During the extrusion of plastic pipes, a cooling device is required to cool the surface of the pipe.

[0003] For example, the authorized patent with publication number CN 215619879 U (A cooling device for plastic pipe production) includes a plastic pipe cooling component for cooling plastic pipes and a water temperature reduction circulation component for cooling water. The plastic pipe cooling component includes a plastic pipe cooling box, with plastic pipe inlet and outlet holes formed at both ends of the plastic pipe cooling box. Support brackets are fixed on both sides of the plastic pipe cooling box, and the bottom end of the plastic pipe cooling box is connected to a drainage pipe.

[0004] Although the above-mentioned existing technology is convenient for cooling plastic pipes, when plastic pipes with a density less than that of water are extruded and cooled, the plastic pipes tend to float on the water surface, affecting the adequacy and efficiency of the cooling of the plastic pipes. Therefore, the market urgently needs to develop a cooling device for plastic pipe extrusion to help people solve the existing problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a cooling device for extruding plastic pipes, so as to solve the problem raised in the above background technology that when a plastic pipe having a density less than that of water is extruded and cooled, the plastic pipe tends to float on the water surface, thereby affecting the sufficient and efficient cooling of the plastic pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling device for extruding plastic pipes, comprising a cooling cylinder, a ring cover is fixedly installed at one end of the outer side of the cooling cylinder, and the cooling cylinder is connected to the ring cover, three ring covers are provided, and the three ring covers are arranged at intervals, a cooling ring box is fixedly installed inside the ring cover, a through hole is provided inside the cooling ring box, and an annular bevel is provided on one side of the through hole of the cooling ring box, a nozzle is provided on the inner side of the annular bevel, and a plurality of nozzles are provided, the plurality of nozzles are arranged in an annular interval, and the nozzles are fixedly connected to the cooling ring box, a cold air delivery pipe is fixedly installed above the ring cover, and the cold air delivery pipe is connected to the cooling ring box.

[0007] Preferably, a second ring cover is fixedly installed on the other end of the outer side of the cooling cylinder, and the cooling cylinder is connected to the second ring cover, and an air suction ring box is fixedly installed inside the second ring cover, and a through hole two is provided inside the air suction ring box, and an annular bevel two is provided on one side of the through hole two of the air suction ring box, and an air suction hole is provided on the inner surface of the annular bevel two, and a plurality of air suction holes are provided, and the plurality of air suction holes are arranged in a ring-shaped manner.

[0008] Preferably, an air supply pipe is fixedly installed above the ring cover 2, a bellows is fixedly installed above the cooling cylinder along one side of the ring cover 2, and one end of the air supply pipe away from the ring cover 2 is fixedly connected to the bellows.

[0009] Preferably, a fan is fixedly installed inside the bellows, and a filter is fixedly installed on the end surface of the bellows away from the air pipe.

[0010] Preferably, lifting assemblies are symmetrically fixedly installed on both sides below the cooling cylinder, and the lifting assembly consists of an upper cylinder and a column. The upper cylinder is arranged above the column, and the upper end of the column is inserted into the interior of the upper cylinder, the inner side surface of the upper cylinder fits with the outer side surface of the column, the upper cylinder is fixedly connected to the cooling cylinder, and scale lines are provided on the outer side of the column.

[0011] Preferably, a handwheel is provided below one side of the upper cylinder, and a threaded rod is fixedly installed on the side of the handwheel facing the upper cylinder. The end of the threaded rod away from the handwheel is threadedly connected to the upper cylinder and extends into the interior of the upper cylinder to contact the column.

[0012] Preferably, a base plate is installed below the lifting assembly, and the base plate is fixedly connected to the column, and universal wheels are rotatably installed at the four corners below the base plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides a cooling cylinder and three ring covers with cooling ring boxes on the cooling cylinder, so that the plastic pipe can be cooled by air cooling. During cooling, the extruded plastic pipe is passed through the cooling cylinder, and the cold air is transported to the inside of the cooling ring box through the cold air delivery pipe. Then, the multiple nozzles provided on each cooling ring box can spray the cold air to the plastic pipe, thereby cooling the plastic pipe, which is beneficial to the cooling molding of the extruded plastic pipe. The nozzles are provided with multiple nozzles and arranged in an annular space, so that the cold air can be sprayed to different positions on the outside of the plastic pipe. The nozzles are tilted under the setting of the annular chute, so that the cold air sprayed into the cooling cylinder can flow to the other end, thereby reducing the temperature of the air inside the cooling cylinder, which is beneficial to the sufficient cooling of the plastic pipe and increases the cooling efficiency of the plastic pipe.

[0015] 2. The utility model is equipped with an air suction ring box and a bellows, which makes it possible to absorb the air inside the cooling cylinder, so that the cold air ejected from one end of the cooling cylinder through the nozzle can flow stably to the other end, thereby increasing the air flow inside the cooling cylinder and keeping the inside of the cooling cylinder at a low temperature, which is beneficial to the cooling of the plastic pipe.

[0016] 3. The utility model provides a lifting component so that the height position of the cooling cylinder can be adjusted, which increases the flexibility of the cooling device. In addition, scale lines are provided on the outside of the column, which can be used to check the height adjustment size of the cooling cylinder and facilitate the leveling of both ends of the cooling cylinder when adjusting the height, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a cooling device for plastic pipe extrusion according to the present invention;

[0018] Figure 2 It is a cross-sectional view of the connection portion between the cooling cylinder and the ring cover of the present invention;

[0019] Figure 3 This is a schematic structural diagram of the cooling ring box of the present utility model;

[0020] Figure 4 It is a cross-sectional view of the connection parts of the cooling cylinder, the second ring cover and the wind box of the utility model.

[0021] In the figure: 1. Base plate; 2. Universal wheel; 3. Lifting assembly; 301. Upper cylinder; 302. Column; 4. Cooling cylinder; 5. Ring cover 1; 6. Cold air delivery pipe; 7. Ring cover 2; 8. Air delivery pipe; 9. Bellows; 10. Hand wheel; 11. Cooling ring box; 1101. Annular chute 1; 12. Nozzle; 13. Intake ring box; 1301. Annular chute 2; 1302. Intake hole; 14. Fan; 15. Filter. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4The utility model provides an embodiment of a cooling device for extruding a plastic pipe, comprising a cooling cylinder 4, a ring cover 5 being fixedly mounted on one end of the outer side of the cooling cylinder 4, and the cooling cylinder 4 is communicated with the ring cover 5, three ring covers 5 are provided, and the three ring covers 5 are arranged at intervals, a cooling ring box 11 is fixedly mounted inside the ring cover 5, a through hole 1 is provided inside the cooling ring box 11, and an annular chute 1101 is provided on one side of the through hole 1 of the cooling ring box 11, a nozzle 12 is provided on the inner side of the annular chute 1101, and a plurality of nozzles 12 are provided, the plurality of nozzles 12 are arranged in an annular interval, and the nozzles 12 are fixedly connected to the cooling ring box 11, a cold air delivery pipe 6 is fixedly mounted above the ring cover 5, the cold air delivery pipe 6 is communicated with the cooling ring box 11, and the cold air delivery pipe 6 is connected to an external cold air delivery device, so that cold air can be supplied to the cold air delivery pipe 6.

[0024] During use, when the plastic pipe is cooled, the extruded plastic pipe passes through the cooling cylinder 4, and the cold air is transported to the inside of the cooling ring box 11 through the cold air delivery pipe 6. Then, the multiple nozzles 12 arranged on each cooling ring box 11 can spray cold air to the plastic pipe to cool the plastic pipe. The nozzles 12 are provided in multiple numbers and arranged in a ring-shaped interval, so that cold air can be sprayed to different positions on the outside of the plastic pipe. The nozzles 12 are tilted under the setting of the annular inclined groove 1101, so that the cold air sprayed into the cooling cylinder 4 can flow to the other end, thereby reducing the temperature of the air inside the cooling cylinder 4, which is beneficial to the sufficient cooling of the plastic pipe and increases the cooling efficiency of the plastic pipe.

[0025] Furthermore, a ring cover 27 is fixedly installed on the other end of the outer side of the cooling cylinder 4, and the cooling cylinder 4 is communicated with the ring cover 27. An air intake ring box 13 is fixedly installed inside the ring cover 27. A through hole 2 is provided inside the air intake ring box 13, and a ring chute 2 1301 is provided on one side of the through hole 2 of the air intake ring box 13. An air intake hole 1302 is provided on the inner surface of the ring chute 2 1301, and a plurality of air intake holes 1302 are provided. The plurality of air intake holes 1302 are arranged in an annular interval to facilitate the air inside the cooling cylinder 4 to enter the air intake ring box 13. An air supply pipe 8 is fixedly installed above the ring cover 27, and the air supply pipe 8 is connected to the air intake ring box 1 3 is connected, a bellows 9 is fixedly installed above the cooling cylinder 4 along one side of the ring cover 2 7, and the end of the air supply pipe 8 away from the ring cover 2 7 is fixedly connected to the bellows 9, a fan 14 is fixedly installed inside the bellows 9, and a filter 15 is fixedly installed on the end surface of the bellows 9 away from the air supply pipe 8 to prevent external debris from entering, so that the air inside the cooling cylinder 4 can be sucked by starting the fan 14, so that the cold air ejected from one end of the cooling cylinder 4 through the nozzle 12 can flow stably to the other end, thereby increasing the air flow inside the cooling cylinder 4 and keeping the inside of the cooling cylinder 4 at a low temperature, which is beneficial to the cooling work of the plastic pipe.

[0026] Furthermore, lifting components 3 are symmetrically fixedly installed on both sides below the cooling cylinder 4. The lifting component 3 consists of an upper cylinder 301 and a column 302. The upper cylinder 301 is arranged above the column 302, and the upper end of the column 302 is inserted into the interior of the upper cylinder 301. The inner side surface of the upper cylinder 301 fits with the outer side surface of the column 302. The upper cylinder 301 is fixedly connected to the cooling cylinder 4. Scale lines are provided on the outside of the column 302, so that the height position of the cooling cylinder 4 can be adjusted, which increases the flexibility of the cooling device. Through the set scale lines, the height adjustment size of the cooling cylinder 4 can be checked and the two ends of the cooling cylinder 4 can be leveled when the height is adjusted, which increases practicality.

[0027] Furthermore, a handwheel 10 is provided at the lower part of one side of the upper cylinder 301, and a threaded rod is fixedly installed on the handwheel 10 on the side facing the upper cylinder 301. The end of the threaded rod away from the handwheel 10 is threadedly connected to the upper cylinder 301 and extends into the interior of the upper cylinder 301 and contacts the column 302. By tightening the threaded rod by the handwheel 10, it is convenient to fix the position between the upper cylinder 301 and the column 302, which is beneficial to the stability of the height adjustment of the cooling cylinder 4.

[0028] Furthermore, a base plate 1 is installed below the lifting assembly 3, and the base plate 1 is fixedly connected to the column 302. Universal wheels 2 are rotatably installed at the four corners below the base plate 1, which increases the mobility of the cooling device.

[0029] Working principle: When in use, when the plastic pipe is cooled, the extruded plastic pipe passes through the cooling cylinder 4, and the cold air is transported to the inside of the cooling ring box 11 through the cold air delivery pipe 6, and then the multiple nozzles 12 arranged on each cooling ring box 11 can spray cold air to the plastic pipe to achieve cooling of the plastic pipe, and the nozzles 12 are provided with multiple and annularly spaced arrangements, so that cold air can be sprayed to different positions on the outside of the plastic pipe, and the nozzles 12 are tilted under the setting of the annular inclined groove 1101, so that the cold air sprayed into the cooling cylinder 4 can flow to the other end, and at the same time, the fan 14 in the bellows 9 is started to absorb the air inside the cooling cylinder 4, thereby increasing the air flow inside the cooling cylinder 4 and keeping the inside of the cooling cylinder 4 at a low temperature, which is conducive to the sufficient cooling of the plastic pipe and increases the cooling efficiency of the plastic pipe.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cooling device for extruding a plastic pipe, comprising a cooling cylinder (4), characterized in that: A ring cover (5) is fixedly installed at one end of the outer side of the cooling tube (4), and the cooling tube (4) is connected to the ring cover (5). There are three ring covers (5), and the three ring covers (5) are arranged at intervals. A cooling ring box (11) is fixedly installed inside the ring cover (5). A through hole (1) is provided inside the cooling ring box (11), and an annular inclined groove (1101) is provided on one side of the through hole (1) of the cooling ring box (11). A nozzle (12) is provided on the inner side of the annular inclined groove (1101), and there are multiple nozzles (12). The multiple nozzles (12) are arranged at intervals in an annular manner, and the nozzles (12) are fixedly connected to the cooling ring box (11). A cold air delivery pipe (6) is fixedly installed above the ring cover (5), and the cold air delivery pipe (6) is connected to the cooling ring box (11).

2. A cooling device for plastic pipe extrusion according to claim 1, characterized in that: A second ring cover (7) is fixedly installed on the other end of the outer side of the cooling cylinder (4), and the cooling cylinder (4) is connected to the second ring cover (7). An air suction ring box (13) is fixedly installed inside the second ring cover (7). A second through hole is provided inside the air suction ring box (13), and a second annular bevel (1301) is provided on one side of the second through hole of the air suction ring box (13). An air suction hole (1302) is provided on the inner surface of the second annular bevel (1301), and a plurality of air suction holes (1302) are provided, and the plurality of air suction holes (1302) are arranged in an annular space.

3. A cooling device for plastic pipe extrusion according to claim 2, characterized in that: An air supply pipe (8) is fixedly installed above the ring cover (7), and a bellows (9) is fixedly installed above the cooling cylinder (4) along one side of the ring cover (7). The end of the air supply pipe (8) away from the ring cover (7) is fixedly connected to the bellows (9).

4. A cooling device for plastic pipe extrusion according to claim 3, characterized in that: A fan (14) is fixedly installed inside the bellows (9), and a filter (15) is fixedly installed on the end surface of the bellows (9) away from the air delivery pipe (8).

5. The cooling device for plastic pipe extrusion according to claim 1, characterized in that: The lifting components (3) are symmetrically fixedly installed on both sides below the cooling cylinder (4), and the lifting components (3) are composed of an upper cylinder (301) and a column (302). The upper cylinder (301) is arranged above the column (302), and the upper end of the column (302) is inserted into the interior of the upper cylinder (301). The inner side surface of the upper cylinder (301) is in contact with the outer side surface of the column (302). The upper cylinder (301) is fixedly connected to the cooling cylinder (4), and a scale line is provided on the outer side of the column (302).

6. A cooling device for plastic pipe extrusion according to claim 5, characterized in that: A hand wheel (10) is provided below one side of the upper cylinder (301), and a threaded rod is fixedly installed on the side of the hand wheel (10) facing the upper cylinder (301), and one end of the threaded rod away from the hand wheel (10) is threadedly connected to the upper cylinder (301) and extends into the interior of the upper cylinder (301) to contact the column (302).

7. A cooling device for plastic pipe extrusion according to claim 6, characterized in that: A base plate (1) is installed below the lifting assembly (3), and the base plate (1) is fixedly connected to the column (302). Universal wheels (2) are rotatably installed at the four corners below the base plate (1).

Images