Cooling device for PVC plastic pipe production

Abstract

The utility model relates to a cooling device for PVC (polyvinyl chloride) plastic pipe production, which comprises a shell, a partition plate for dividing the internal space of the shell into a first cooling cavity and a second cooling cavity is arranged in the shell, a first through hole for allowing a plastic pipe to pass through is formed in the shell, a second through hole directly facing the first through hole is formed in the partition plate, and the first through hole is communicated with the second through hole. A rubber scraping ring is arranged on the second through hole, a water cooling mechanism is arranged in the first cooling cavity, and an air drying mechanism is arranged in the second cooling cavity. The partition plate with the rubber scraping ring is arranged in the shell, and when the PVC plastic pipe penetrates through the rubber scraping ring from the first cooling cavity to enter the second cooling cavity, the rubber scraping ring is tightly attached to the outer wall of the PVC plastic pipe, so that water stains on the pipe wall can be scraped off when the PVC plastic pipe moves forwards, and the effect of scraping off the water stains on the pipe wall is achieved.

Description

Technical Field

[0001] The present application relates to the field of plastic pipe processing equipment, and in particular to a cooling device for producing PVC plastic pipes. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, with stabilizers, lubricants, plasticizers, etc., and are extruded in a pipe making machine by the "plastic" method. They are mainly used for water supply system piping, drainage, exhaust and sewage sanitary pipes, underground drainage pipe systems, rainwater pipes, and threading pipes for wire installation in housing buildings.

[0003] When PVC plastic pipes are reproduced, an extruder is usually used to continuously extrude the pipes. The temperature of PVC is high during extrusion, and water cooling is usually used to cool the PVC pipes. Water is sprayed on the pipe wall of the plastic pipe to reduce the temperature. However, existing water cooling devices usually only achieve the cooling function. After the PVC pipe is removed from the cooling device, the cooling water will adhere to the pipe wall, which can easily cause dust or other debris to contaminate the pipe wall to form mud and dirt, affecting the hygiene of the pipe and the subsequent processing steps. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the present application provides a cooling device for producing PVC plastic pipes.

[0005] The present application provides a cooling device for PVC plastic pipe production using the following technical solution:

[0006] A cooling device for producing PVC plastic pipes comprises a shell, wherein a partition is arranged inside the shell for dividing the internal space of the shell into a first cooling chamber and a second cooling chamber, the shell is provided with a first through hole for allowing the plastic pipe to pass through, the partition is provided with a second through hole facing the first through hole, a rubber scraper ring is arranged on the second through hole, a water cooling mechanism is arranged in the first cooling chamber, and an air drying mechanism is arranged in the second cooling chamber.

[0007] A further technical solution is that the water cooling mechanism includes a water pump and a spray head arranged in the first cooling chamber, and a water pipeline is connected between the water pump and the spray head.

[0008] A further technical solution is that a plurality of air inlet holes and a single air outlet hole are provided on the shell, and the air-drying mechanism includes a fan arranged on the air outlet hole.

[0009] This application has the following beneficial technical effects:

[0010] By arranging a partition with a rubber scraper ring in the housing, when the PVC plastic pipe passes through the rubber scraper ring from the first cooling chamber to the second cooling chamber, the rubber scraper ring is in close contact with the outer wall of the PVC plastic pipe, so that the water stains on the pipe wall can be scraped off when the PVC plastic pipe moves forward, achieving the effect of scraping off the water stains on the pipe wall. The air cooling mechanism in the second cooling chamber can blow dry the water stains on the pipe wall again, improving the drying and cleaning effect of the pipe wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application.

[0013] Figure numerals: 1, shell; 11, first cooling chamber; 12, second cooling chamber; 13, partition; 21, water pump; 22, sprinkler head; 23, water pipe; 31, air outlet; 32, air inlet; 33, fan; 41, first through hole; 42, second through hole; 43, rubber scraper ring. DETAILED DESCRIPTION

[0014] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0015] The present application embodiment discloses a cooling device for PVC plastic pipe production. Figure 1 and Figure 2 A cooling device for PVC plastic pipe production includes a shell 1, a partition 13 is provided in the shell 1 for dividing the internal space of the shell 1 into a first cooling chamber 11 and a second cooling chamber 12, a first through hole 41 is provided on the shell 1 for allowing the plastic pipe to pass through, a second through hole 42 is provided on the partition 13 facing the first through hole 41, a rubber scraper ring 43 is provided on the second through hole 42, a water cooling mechanism is provided in the first cooling chamber 11, and an air drying mechanism is provided in the second cooling chamber 12.

[0016] The water cooling mechanism includes a water pump 21 and a spray head 22 which are arranged in the first cooling chamber 11 , and a water delivery pipeline 23 is connected between the water pump 21 and the spray head 22 .

[0017] The water pump 21 can operate underwater. The water pump 21 is arranged at the bottom of the first cooling chamber 11 and is used to pump water to the spray head 22. The water is sprayed on the PVC plastic pipe through the spray head 22 for water cooling. The water sprayed from the spray head 22 is collected at the bottom of the first cooling chamber 11 and is pumped again by the water pump 21 to realize the circulation of cooling water.

[0018] When the PVC plastic pipe enters the second cooling chamber 12 from the first cooling chamber 11, it needs to pass through the second perforation 42 and the rubber scraper ring 43. The rubber scraper ring 43 is close to the outer wall of the PVC plastic pipe, so that the water stains on the pipe wall can be scraped off when the PVC plastic pipe moves forward, achieving the effect of scraping off the water stains on the pipe wall. The air cooling mechanism in the second cooling chamber 12 can blow off and evaporate the water stains on the pipe wall again.

[0019] The housing 1 is provided with a plurality of air inlet holes 32 and a single air outlet hole 31, and the air drying mechanism includes a fan 33 disposed on the air outlet hole 31. The air inlet holes 32 and the air outlet hole 31 are disposed on opposite sides of the housing and are connected to the second cooling chamber 12. When the fan 33 is started, cooling air can be driven from the air inlet holes 32 into the second cooling chamber 12, and the air in the second cooling chamber 12 is blown out by the fan 33. The air passes through the outer wall of the PVC plastic tube, thereby drying the residual moisture on the tube wall.

[0020] It should be noted that in the present invention, the descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "setting", etc. should be understood in a broad sense. For example, "setting" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling device for PVC plastic pipe production, characterized in that: The invention comprises a shell (1), wherein a partition (13) is arranged inside the shell (1) for dividing the internal space of the shell (1) into a first cooling chamber (11) and a second cooling chamber (12), wherein a first through hole (41) is arranged on the shell (1) for allowing a plastic pipe to pass through, wherein a second through hole (42) is arranged on the partition (13) and is opposite to the first through hole (41), wherein a rubber scraper ring (43) is arranged on the second through hole (42), wherein a water cooling mechanism is arranged inside the first cooling chamber (11), and wherein an air drying mechanism is arranged inside the second cooling chamber (12).

2. A cooling device for PVC plastic pipe production according to claim 1, characterized in that: The water cooling mechanism comprises a water pump (21) and a spray head (22) arranged in the first cooling chamber (11); a water delivery pipeline (23) is connected between the water pump (21) and the spray head (22).

3. A cooling device for PVC plastic pipe production according to claim 1, characterized in that: The housing (1) is provided with a plurality of air inlet holes (32) and a single air outlet hole (31), and the air drying mechanism comprises a fan (33) arranged on the air outlet hole (31).

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