Plastic pipe cooling and shaping device

Abstract

The invention discloses a plastic pipe cooling and shaping device which comprises a rack, a cooling cylinder is fixed to the rack, a cooling water cavity and a sponge layer are arranged in the cooling cylinder, a flexible interlayer is arranged between the cooling water cavity and the sponge layer, and a plurality of water through holes are formed in the flexible interlayer; the cooling cylinder is provided with a water inlet port which is communicated with the interior of the cooling water cavity, and cooling water flows to the sponge layer through the water through holes; and the sponge layer is wrapped on the outer circumference of the plastic pipe. The cooling water cavity and the sponge layer are arranged in the cooling cylinder, and the water pressure of water entering the cooling water cavity can enable the flexible interlayer to expand, so that the sponge layer is tightly attached to the outer walls of plastic pipes of different specifications; the outer pipe wall of the plastic pipe is in contact with the wet sponge layer, so that the plastic pipe can be uniformly cooled and is not easy to deform, and the forming quality of the plastic pipe is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe processing, in particular to a plastic pipe cooling and shaping device. Background Art

[0002] The processing of plastic pipes mainly includes raw material preparation, mixing and preheating, extrusion molding, cooling and shaping, pulling and cutting, and packaging. In the process of extrusion molding from the inside of the mold to the outside, since the temperature of the newly extruded pipe is high and it is in the state of molten material, it needs to be cooled to make it have sufficient rigidity. At present, most cooling processes use spraying to spray water on the pipe for water cooling. During spraying, the outer wall of the pipe is not in uniform contact with the water, and there is a time difference in the cooling process. Although the cooling purpose can be achieved in the end, the uneven cooling during the cooling process may cause the plastic pipe to deform, affecting the final molding quality of the plastic pipe, and the defective rate is high. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a plastic pipe cooling and shaping device, which can evenly cool the plastic pipe fittings, reduce the deformation rate of the plastic pipe, and improve the rate of high-quality products.

[0004] To this end, the technical solution of the present invention is: a plastic pipe cooling and shaping device, including a frame, a cooling cylinder is fixed on the frame, a cooling water cavity and a sponge layer are provided in the cooling cylinder, a flexible interlayer is provided between the cooling water cavity and the sponge layer, and a plurality of water holes are provided on the flexible interlayer; a water inlet interface is provided on the cooling cylinder, which is connected with the interior of the cooling water cavity, and the cooling water flows to the sponge layer through the water holes; the sponge layer is wrapped around the outer circumference of the plastic pipe.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: water enters the cooling water chamber, and the water pressure can drive the flexible interlayer to expand until the sponge layer is tightly attached to the outer wall of plastic pipes of different specifications.

[0006] On the basis of the above solution and as a preferred solution of the above solution: the flexible barrier layer is made of elastic rubber material.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the sponge layer is composed of a plurality of strip-shaped sponges.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the sponge layer is made of high temperature resistant sponge.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: a water receiving pan is provided under the cooling cylinder, and the water receiving pan is mounted on the frame; the length of the water receiving pan is greater than the length of the cooling cylinder, and both ends of the cooling cylinder are located within the water receiving range of the water receiving pan.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a cooling water tank, which is connected to the water inlet interface of the cooling cylinder through a first water pump; a second water pump is provided in the water receiving tray, and the second water pump is connected to the cooling water tank.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. A cooling water cavity and a sponge layer are arranged in the cooling cylinder. The water pressure of the water entering the cooling water cavity can expand the flexible interlayer. After expansion, the sponge layer can be squeezed so that the sponge layer is closely attached to the outer wall of plastic pipes of different specifications. At the same time, water holes are arranged on the flexible interlayer. The cooling water flows to the sponge layer through the water holes to wet the sponge layer. If the water pressure is a little higher, all the sponge layers can be wetted instantly, so that the outer tube wall of the plastic pipe contacts the wet sponge layer at the same time and is cooled by the cooling water synchronously. The cooling water continuously flows to the sponge layer to cool the plastic pipe for a long time. The plastic pipe can be evenly cooled and is not easy to deform, thereby ensuring the molding quality of the plastic pipe.

[0013] 2. A water receiving tray is set under the cooling cylinder to collect the cooling water dripping from the cooling cylinder to avoid waste of cooling water. At the same time, the collected water can be sent back to the cooling water tank to circulate water and save water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a structural cross-sectional view of the cooling cylinder of the present invention;

[0016] Figure 3 for Figure 2 A partial enlarged view of .

[0017] The markings in the figure are: frame 1, cooling cylinder 2, cooling water chamber 21, flexible interlayer 22, water hole 23, water inlet interface 24, sponge layer 3, water receiving tray 4, plastic pipe 5. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0020] See the attached drawings. The plastic pipe cooling and shaping device described in this embodiment includes a frame 1, on which a cooling cylinder 2 is fixed. The cooling cylinder 2 is a hollow cylindrical structure. A cooling water cavity 21 and a sponge layer 3 are provided on the inner wall of the cooling cylinder 2. A flexible interlayer 22 is provided between the cooling water cavity 21 and the sponge layer 3, and a plurality of water holes 23 are provided on the flexible interlayer 22. The flexible interlayer 22 is made of elastic rubber material and can expand and contract under the influence of water pressure. Water enters the cooling water cavity 21, and the water pressure can drive the flexible interlayer 22 to expand until the sponge layer 3 is tightly attached to the outer wall of plastic pipes 5 of different specifications.

[0021] The cooling cylinder 2 is provided with a water inlet interface 24, which is connected to a cooling water tank (not shown) through a water pipe. The cooling water tank supplies cooling water to the cooling water chamber 22 through a first water pump; it is connected to the inside of the cooling water chamber 21, and the cooling water flows to the sponge layer 3 through the water hole 23; the sponge layer 3 is composed of a plurality of sponge strips, and the sponge layer 3 is wrapped on the outer circumference of the plastic pipe 5. The sponge layer 3 is made of high-temperature resistant sponge, so that the sponge layer 3 is not afraid of the high temperature outside the pipe, and the characteristics of the sponge layer will not be affected by the high temperature.

[0022] A cooling water chamber 21 and a sponge layer 3 are arranged in the cooling cylinder 2. The water pressure of the water entering the cooling water chamber 21 can expand the flexible interlayer 22. After expansion, the sponge layer 3 can be squeezed so that the sponge layer 3 is closely attached to the outer wall of the plastic tubes 5 of different specifications. At the same time, a water hole 23 is arranged on the flexible interlayer 22. The cooling water flows to the sponge layer 3 through the water hole 23 to wet the sponge layer 3. If the water pressure is a little higher, all the sponge layers 3 can be wetted instantly, so that the outer tube wall of the plastic tube 5 contacts the wet sponge layer 3 at the same time and is cooled by the cooling water synchronously. The cooling water continuously flows to the sponge layer to cool the plastic tube for a long time. The plastic tube can be evenly cooled and is not easily deformed, thereby ensuring the molding quality of the plastic tube.

[0023] A water receiving pan 4 is provided below the cooling cylinder 2, and the water receiving pan 4 is mounted on the frame 1; the length of the water receiving pan 4 is greater than the length of the cooling cylinder 2, and both ends of the cooling cylinder 2 are located within the water receiving range of the water receiving pan 4. A second water pump is provided in the water receiving pan 4, and the second water pump is connected to the cooling water tank. The water receiving pan 4 is provided below the cooling cylinder 2 to collect the cooling water dripping from the cooling cylinder to avoid the waste of cooling water, and at the same time, the collected water can be sent back to the cooling water tank to circulate water and save water resources.

[0024] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A plastic pipe cooling and shaping device, comprising a frame, on which a cooling cylinder is fixed, characterized in that: A cooling water cavity and a sponge layer are provided in the cooling cylinder, a flexible interlayer is provided between the cooling water cavity and the sponge layer, and a plurality of water holes are provided on the flexible interlayer; a water inlet interface is provided on the cooling cylinder, which is connected with the interior of the cooling water cavity, and the cooling water flows to the sponge layer through the water holes; the sponge layer is wrapped on the outer circumference of the plastic tube.

2. A plastic pipe cooling and shaping device as claimed in claim 1, characterized in that: Water enters the cooling water cavity, and the water pressure can drive the flexible interlayer to expand until the sponge layer is closely attached to the outer wall of plastic pipes of different specifications.

3. A plastic pipe cooling and shaping device as claimed in claim 1, characterized in that: The flexible barrier layer is made of elastic rubber material.

4. A plastic pipe cooling and shaping device as claimed in claim 1, characterized in that: The sponge layer is formed by splicing a plurality of strip-shaped sponges.

5. A plastic pipe cooling and shaping device as claimed in claim 1, characterized in that: The sponge layer is made of high temperature resistant sponge.

6. A plastic pipe cooling and shaping device as claimed in claim 1, characterized in that: A water receiving pan is provided below the cooling cylinder and is mounted on the frame; the length of the water receiving pan is greater than the length of the cooling cylinder, and both ends of the cooling cylinder are located within the water receiving range of the water receiving pan.

7. A plastic pipe cooling and shaping device as claimed in claim 6, characterized in that: It also includes a cooling water tank, which is connected to the water inlet interface of the cooling cylinder through a first water pump; a second water pump is arranged in the water receiving tray, and the second water pump is connected to the cooling water tank.

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