Cooling device for machine barrel of PE pipe plastic extruding machine

Abstract

The utility model relates to the technical field of PE pipe plastic extruding machine accessories, and provides a cooling device of a PE pipe plastic extruding machine barrel, which comprises two semicircular shells, the two semicircular shells are rotatably connected through a hinge, and the movable ends of the semicircular shells are symmetrically provided with fixing components; the bending pipe is fixed in the semicircular shell, and the two ends of the bending pipe are fixedly communicated with connectors; according to the technical scheme, the PE pipe plastic extruding machine barrel solves the problem that in the prior art, a cooling pipeline of a PE pipe plastic extruding machine barrel is fixedly arranged with the machine barrel, the cooling pipeline is fixedly connected with the machine barrel, the cooling pipeline is fixed to the machine barrel, the cooling pipeline is fixed to the machine barrel, and the cooling pipeline is fixed to the machine barrel through the three-way pipes and detachably connected with the two corresponding connecting heads, and the evaporator is fixed to the front wall of the water storage tank. When a cooling pipeline or a machine barrel is damaged and cracks occur, disassembly and maintenance are difficult, operation is complex, and if overall replacement is carried out, cost is increased, and resources are wasted.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipe extruder accessories, in particular to a cooling device for a barrel of a PE pipe extruder. Background Art

[0002] PE pipe extruder is a kind of equipment specially used for producing polyethylene (PE) pipes. It heats and melts polyethylene particles or powder through the extrusion process, then extrude them into a tube through a die, and finally forms the required pipe through cooling and shaping processes. PE pipes are widely used in water supply, drainage, gas transportation and other fields due to their good chemical corrosion resistance, low temperature resistance and flexibility.

[0003] The cooling method of the PE pipe extruder barrel is generally to fix a spiral pipe on the outer wall of the barrel and continuously pass low-temperature water to achieve a cooling effect. However, this setting method has certain defects: the cooling pipe and the barrel are fixed, so it is difficult to disassemble and maintain the cooling pipe or barrel when it is damaged or cracked, and the operation is complicated. If the entire pipe is replaced, it will increase costs and waste resources. Utility Model Content

[0004] The utility model provides a cooling device for a barrel of a PE pipe extruder, which solves the problem that the cooling pipe and the barrel of the PE pipe extruder barrel in the related art are fixedly arranged, and it is difficult to disassemble and maintain the cooling pipe or the barrel when it is damaged and cracked, and the operation is complicated. If the entire pipe or the barrel is replaced, it will increase costs and waste resources.

[0005] The technical solution of the utility model is as follows:

[0006] A cooling device for a barrel of a PE pipe extruder, comprising:

[0007] A semicircular shell, wherein two semicircular shells are provided, the two semicircular shells are rotatably connected by a hinge, and the movable ends of the semicircular shells are symmetrically provided with fixed components;

[0008] A bending tube, wherein the bending tube is fixed in the semicircular housing, and both ends of the bending tube are fixedly connected with connectors;

[0009] Two tee pipes are provided, and the tee pipes are detachably connected to two corresponding connectors.

[0010] A water tank, wherein an evaporator is fixed on the front wall of the water tank, a mounting plate is fixed on the side wall of the water tank, a water pump is fixed on the mounting plate, a water inlet of the water pump is connected to the bottom of the inner cavity of the water tank, a water outlet of the water pump is connected to the tee on the left through a connecting pipe, and the tee on the right is connected to the top of the inner cavity of the water tank through a connecting pipe.

[0011] Preferably, the fixing assembly includes fixing blocks respectively fixed on two semicircular outer shells, each of the fixing blocks is provided with a mounting groove, a rotating block is rotatably installed in the mounting groove at the bottom, a threaded rod is fixed on the top of the rotating block, and a threaded knob is screwed on the threaded rod.

[0012] Preferably, a threaded sleeve is slidably mounted on the end of the three-way pipe close to the connecting head, and the outer wall of the connecting head is provided with thread teeth matching with the threaded sleeve.

[0013] Preferably, a sealing tube is fixed at one end of the connector, a sealing groove matching with the sealing tube is formed on the side wall of the pipe opening of the tee pipe, and a sealing ring is fixed in the sealing groove.

[0014] Preferably, the ends of the three-way pipe close to the connector are provided with limiting sliding grooves, and the threaded sleeves are slidably installed in the corresponding limiting sliding grooves.

[0015] Preferably, the evaporator is connected to an external compressor, the compressor is connected to a condenser, the condenser is connected to an expansion valve, the expansion valve is connected to the evaporator, and a closed loop connection is formed between the evaporator, the compressor, the condenser and the expansion valve.

[0016] Preferably, the exterior of one end of the evaporator located in the water storage tank is coated with anti-rust paint.

[0017] Preferably, the connecting pipe is a metal hose, and the outer surfaces of the connecting pipe, the semicircular outer shell and the three-way pipe are all coated with thermal insulation coating.

[0018] The beneficial effects of the utility model are:

[0019] 1. The two semicircular shells provided in the utility model can be combined into a cylindrical shape, which is directly sleeved on the outer wall of the barrel of the tube extruder, and the semicircular shells can be quickly disassembled and installed through the provided fixing components. The operation is simple and convenient, and it is easy to maintain or replace the faulty position, avoiding waste of resources.

[0020] 2. The bent tube provided in the utility model is bent to increase its surface area within the semicircular shell, thereby accelerating heat transfer, allowing the barrel of the PE pipe extruder to cool quickly. The connection and disassembly between the provided connector and the three-way pipe are convenient, and the sealing after connection can be ensured to avoid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0023] Figure 2 It is a three-dimensional diagram of the internal structure of the semicircular shell of the utility model;

[0024] Figure 3 for Figure 1 The enlarged schematic diagram at A in the middle;

[0025] Figure 4 It is a three-dimensional diagram of the three-way pipe structure of the utility model;

[0026] Figure 5 It is a three-dimensional diagram of the connector structure of the utility model.

[0027] In the figure: 1. semicircular shell; 2. bending pipe; 3. connector; 4. fixing assembly; 41. fixing block; 42. mounting groove; 43. rotating block; 44. threaded rod; 45. threaded knob; 5. three-way pipe; 6. water storage tank; 7. mounting plate; 8. water pump; 9. connecting pipe; 10. evaporator; 11. threaded sleeve; 12. limiting slide groove; 13. sealing groove; 14. sealing pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] like Figure 1~Figure 2 As shown, this embodiment proposes:

[0031] A cooling device for a barrel of a PE pipe extruder, comprising:

[0032] A semicircular housing 1, wherein two semicircular housings 1 are provided, and the two semicircular housings 1 are rotatably connected via a hinge, and a fixing component 4 is symmetrically provided at the movable end of the semicircular housing 1;

[0033] A bending tube 2, the bending tube 2 is fixed in the semicircular housing 1, and both ends of the bending tube 2 are fixedly connected with connectors 3;

[0034] There are two three-way pipes 5, and the three-way pipes 5 are detachably connected to the corresponding two connectors 3.

[0035] A water tank 6, an evaporator 10 is fixed to the front wall of the water tank 6, a mounting plate 7 is fixed to the side wall of the water tank 6, a water pump 8 is fixed on the mounting plate 7, a water inlet of the water pump 8 is connected to the bottom of the inner cavity of the water tank 6, a water outlet of the water pump 8 is connected to the three-way pipe 5 on the left through a connecting pipe 9, and the three-way pipe 5 on the right is connected to the top of the inner cavity of the water tank 6 through a connecting pipe 9.

[0036] The evaporator 10 is connected to an external compressor (not shown in the figure), the compressor is connected to a condenser (not shown in the figure), the condenser is connected to an expansion valve (not shown in the figure), the expansion valve is connected to the evaporator 10, and the evaporator 10, the compressor, the condenser and the expansion valve form a closed loop connection.

[0037] The end of the evaporator 10 located in the water storage tank 6 is coated with anti-rust paint.

[0038] The connecting pipe 9 is a metal hose, and the outer surfaces of the connecting pipe 9, the semicircular housing 1 and the three-way pipe 5 are all coated with thermal insulation paint.

[0039] In this embodiment, the two semicircular shells 1 can be combined into a cylindrical shape and directly sleeved on the outer wall of the barrel of the PE tube extruder. The semicircular shell 1 can be quickly disassembled and installed through the fixed assembly 4, which is simple and convenient to operate. The bent tube 2 is bent to increase its surface area inside the semicircular shell 1, thereby accelerating the transfer of heat, so that the barrel of the PE tube extruder can be quickly cooled. The connection and disassembly between the connector 3 and the three-way pipe 5 are convenient, and the sealing after connection can be ensured to avoid leakage. The water storage tank 6 is used to store water for circulating cooling. The water storage tank 6 is cooled by the evaporator 10, and the cooled water is pumped into the bent tube 2 by the water pump 8, so as to continuously cool the barrel of the PE tube extruder. The evaporator 10, the compressor, the condenser and the expansion valve and their connection methods are all existing mature technologies. The anti-rust paint coated on the outside of one end of the evaporator 10 located in the water tank 6 can prevent the evaporator 10 from being corroded by water in the water tank 6, thereby increasing the service life of the device. The thermal insulation coating provided can ensure the cooling effect while preventing heat from being dissipated to the outside, causing the working environment temperature to be too high.

[0040] Example 2

[0041] like Figure 3~Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes:

[0042] The fixing assembly 4 includes fixing blocks 41 fixed on two semicircular shells 1 respectively. The fixing blocks 41 are each provided with a mounting groove 42. A rotating block 43 is rotatably mounted in the mounting groove 42 at the bottom. A threaded rod 44 is fixed on the top of the rotating block 43. A threaded knob 45 is screwed on the threaded rod 44.

[0043] In this embodiment, the fixing assembly 4 is provided to realize the quick disassembly and installation of the semicircular shell 1, and the operation is simple and convenient. When the semicircular shell 1 needs to be fixed on the outside of the PE tube extruder barrel, the top semicircular shell 1 is first buckled on the top of the PE tube extruder barrel, and then the bottom semicircular shell 1 is rotated so that the bottom semicircular shell 1 and the top semicircular shell 1 form a cylinder. At this time, the threaded rod 44 is flipped upward, and then the threaded knob 45 is rotated until the threaded knob 45 is tightly abutted against the upper fixing block 41 to complete the fixation of the semicircular shell 1. The disassembly process is the opposite.

[0044] The end of the tee pipe 5 close to the connector 3 is slidably mounted with a threaded sleeve 11 , and the outer wall of the connector 3 is provided with thread teeth matching with the threaded sleeve 11 .

[0045] A sealing tube 14 is fixed to one end of the connector 3 , and a sealing groove 13 matching with the sealing tube 14 is formed on the side wall of the pipe opening of the tee pipe 5 , and a sealing ring is fixed in the sealing groove 13 .

[0046] The ends of the three-way pipe 5 close to the connector 3 are provided with limiting sliding grooves 12 , and the threaded sleeves 11 are slidably installed in the corresponding limiting sliding grooves 12 .

[0047] In this embodiment, the connection and disassembly between the connector 3 and the tee pipe 5 are convenient, and the sealing performance after the connection can be ensured to avoid leakage. When the tee pipe 5 is connected to the connector 3, the sealing tube 14 on the connector 3 is first inserted into the sealing groove 13 on the tee pipe 5, and then the threaded sleeve 11 is rotated, and the threaded sleeve 11 is screwed to the outer surface of the connector 3 until the sealing tube 14 is tightly inserted into the sealing groove 13. The provided sealing ring can ensure the sealing performance of the connection to avoid leakage.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling device for a PE pipe extruder barrel, characterized in that: include: A semicircular shell (1), wherein two semicircular shells (1) are provided, the two semicircular shells (1) are rotatably connected via a hinge, and the movable ends of the semicircular shells (1) are symmetrically provided with fixed components (4); A bending tube (2), the bending tube (2) being fixed in the semicircular outer shell (1), and both ends of the bending tube (2) being fixedly connected with connectors (3); The three-way pipe (5) is provided with two three-way pipes (5), and the three-way pipe (5) is detachably connected to the corresponding two connectors (3). A water storage tank (6), wherein an evaporator (10) is fixed to the front wall of the water storage tank (6), a mounting plate (7) is fixed to the side wall of the water storage tank (6), a water pump (8) is fixed on the mounting plate (7), a water inlet of the water pump (8) is connected to the bottom of the inner cavity of the water storage tank (6), a water outlet of the water pump (8) is connected to the tee pipe (5) on the left side through a connecting pipe (9), and the tee pipe (5) on the right side is connected to the top of the inner cavity of the water storage tank (6) through a connecting pipe (9).

2. A cooling device for a PE pipe extruder barrel according to claim 1, characterized in that: The fixing assembly (4) comprises fixing blocks (41) respectively fixed on two semicircular housings (1), each fixing block (41) being provided with a mounting groove (42), a rotating block (43) being rotatably mounted in the mounting groove (42) at the bottom, a threaded rod (44) being fixed at the top end of the rotating block (43), and a threaded knob (45) being screwed onto the threaded rod (44).

3. A cooling device for a PE pipe extruder barrel according to claim 1, characterized in that: The end of the three-way pipe (5) close to the connecting head (3) is slidably mounted with a threaded sleeve (11), and the outer wall of the connecting head (3) is provided with threaded teeth matching the threaded sleeve (11).

4. A cooling device for a PE pipe extruder barrel according to claim 3, characterized in that: A sealing tube (14) is fixed to one end of the connector (3), a sealing groove (13) matching with the sealing tube (14) is provided on the side wall of the pipe opening of the tee pipe (5), and a sealing ring is fixed in the sealing groove (13).

5. A cooling device for a PE pipe extruder barrel according to claim 4, characterized in that: The ends of the three-way pipe (5) close to the connector (3) are provided with limit sliding grooves (12), and the threaded sleeve (11) is slidably mounted in the corresponding limit sliding grooves (12).

6. A cooling device for a PE pipe extruder barrel according to claim 1, characterized in that: The evaporator (10) is connected to an external compressor, the compressor is connected to a condenser, the condenser is connected to an expansion valve, the expansion valve is connected to the evaporator (10), and a closed loop connection is formed between the evaporator (10), the compressor, the condenser and the expansion valve.

7. A cooling device for a PE pipe extruder barrel according to claim 1, characterized in that: The exterior of one end of the evaporator (10) located in the water storage tank (6) is coated with anti-rust paint.

8. A cooling device for a PE pipe extruder barrel according to claim 1, characterized in that: The connecting pipe (9) is a metal hose, and the outer surfaces of the connecting pipe (9), the semicircular outer shell (1) and the three-way pipe (5) are all coated with thermal insulation paint.

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