Plastic pipe production forming device

Abstract

The utility model belongs to the technical field of plastic pipe production, and discloses a plastic pipe production forming device which comprises a cooling box, a cooling structure assembled on the inner wall of the cooling box and a water storage box connected with the cooling structure in a penetrating mode, and circulating structures are arranged above and below the cooling box. The cooling structure comprises a limiting ring fixedly installed on the inner top wall of the cooling box, two spraying discs which are coaxial with the limiting ring and fixedly connected to the inner top wall of the limiting ring, and a water inlet pipe which is in through connection with the two spraying discs, and two connecting plates are fixedly installed on the outer wall of the limiting ring. Through the design of the cooling structure and the circulating structure, in the extrusion molding process of the plastic pipe, water spraying cooling operation can be conducted on the outer surface of the plastic pipe by means of the spraying heads distributed at equal intervals, so that it is guaranteed that water spraying cooling on the outer surface of the plastic pipe can be uniform and comprehensive, and the utilization efficiency of water resources can be greatly improved; the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic pipe production, in particular to a plastic pipe production and molding device. Background Art

[0002] As society continues to advance and develop, plastic pipes have been widely and deeply used in many different fields due to their many excellent properties. In the entire production and processing process of plastic pipes, it is necessary to go through a large number of complex process links in sequence, and the specific link of pipe cooling and molding is particularly important. By taking a fast and effective way to implement comprehensive and accurate cooling operations on pipes, it can effectively promote the uniform and stable shrinkage of pipes, and thus can effectively ensure that the product has good quality and maintains a high level of aesthetics. In order to ensure that the quality of pipe molding can meet the ideal standards and requirements, special plastic pipe production and molding devices are usually used to achieve integrated molding of pipes;

[0003] The shortcomings of the existing plastic pipe production and molding devices are as follows: in the process of plastic pipe production and molding, due to a series of processing techniques and chemical reactions, a considerable amount of heat is often generated on its surface. Among the existing devices, most of them use fans to speed up the air circulation speed to achieve cooling treatment of plastic pipes. Admittedly, this method can effectively take away the heat accumulated on the plastic pipes to a certain extent. However, due to the limitations of the cooling method of air circulation in terms of scope and effect, it is impossible to ensure that the heat is evenly dissipated in various areas of the outer wall of the pipe, so that local areas may still maintain a high temperature, while other areas cool down relatively quickly. This temperature difference will cause the problem of uneven thermal expansion and contraction, and then cause stress concentration on the surface of the pipe. When this stress exceeds the bearing limit of the material, it will cause cracks. These surface cracks will not only affect the appearance quality of the plastic pipe, but also seriously damage its structural integrity and mechanical properties, so that the plastic pipe may face the risk of failure in the subsequent use process, reducing its service life and reliability. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a plastic pipe production and molding device including a cooling box and a cooling structure mounted on the inner wall of the cooling box, and a water storage tank connected to the cooling structure, wherein a circulation structure is arranged above and below the cooling box;

[0005] The cooling structure includes a limiting ring fixedly mounted on the inner top wall of the cooling box and two spray discs coaxially arranged with the limiting ring and fixedly connected to the inner top wall of the limiting ring, and a water inlet pipe connected to the two spray discs, two connecting plates are fixedly mounted on the outer wall of the limiting ring, circular holes are opened on the inner walls of the two connecting plates, a tee pipe is connected to the ends of the two water inlet pipes close to each other, and the ends of the two water inlet pipes far from each other are both connected to the circular holes and connected to the spray discs, and the inner wall of the spray disc is installed with spray heads distributed equidistantly;

[0006] The circulation structure includes a circulating water tank and a return pipe connected to the circulating water tank, and an extraction pump connected to the other end of the return pipe, and the output end of the extraction pump is connected to a transmission pipe.

[0007] Preferably, a partition is provided inside the water tank, and the partition divides the internal space of the water tank into a water storage space and an installation space. A water pump is provided inside the installation space and in front of the extraction pump. The water pump and the extraction pump are both fixedly installed on the inner bottom wall of the installation space. The input end of the water pump is connected to the end of the three-way pipe close to the water tank, and the output end of the water pump is connected to a water pumping pipe.

[0008] Preferably, it also includes a guide structure located at the edges of both sides of the inner wall of the cooling box and a support leg located outside the circulating water tank and fixedly connected to the bottom of the cooling box.

[0009] Preferably, the guide structure includes five mounting frames which are equidistantly distributed and guide wheels which are rotatably connected to inner walls of the mounting frames.

[0010] Preferably, a through groove is provided on the inner bottom wall of the cooling box, a matching flow groove is provided on the top surface of the circulating water box and below the through groove, and a filter screen is installed on the inner wall of the flow groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model, through the design of cooling structure and circulation structure, can promote the outer surface of the plastic pipe to be sprayed with water for cooling during the extrusion molding process by means of equidistantly distributed spray heads, thereby ensuring that the outer surface of the plastic pipe is sprayed with water for cooling evenly and comprehensively. In this process, part of the water will evaporate due to the high temperature, while the other part of the water will, under the action of gravity, pass through the through groove and the circulation groove, and after being filtered by the filter net, fall into the circulating water tank. This part of the water can also be extracted by the extraction pump and transported to the water storage tank, thereby realizing the recycling and reuse of water resources, thereby greatly improving the utilization efficiency of water resources and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the circulating water tank of the utility model;

[0015] Figure 3 It is a right side structural schematic diagram of the utility model;

[0016] Figure 4 This is a schematic diagram of the cooling structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the internal structure of the water storage tank of the utility model.

[0018] In the figure: 1. cooling box; 2. cooling structure; 21. limiting ring; 22. spray plate; 23. water inlet pipe; 24. connecting plate; 25. three-way pipe; 26. sprinkler head; 3. water storage tank; 31. partition; 32. water pump; 33. water extraction pipe; 4. circulation structure; 41. circulating water tank; 42. return pipe; 43. extraction pump; 44. transmission pipe; 45. filter screen; 5. guide structure; 51. mounting frame; 52. guide wheel; 6. support leg. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in 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 in 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.

[0020] like Figures 1 to 5 As shown, the utility model provides a plastic pipe production and molding device, comprising a cooling box 1 and a cooling structure 2 mounted on the inner wall of the cooling box 1, and a water storage tank 3 connected to the cooling structure 2, and a circulation structure 4 is arranged above and below the cooling box 1;

[0021] The cooling structure 2 includes a limiting ring 21 fixedly mounted on the inner top wall of the cooling box 1, two spraying discs 22 coaxially arranged with the limiting ring 21 and fixedly connected to the inner top wall of the limiting ring 21, and a water inlet pipe 23 connected to the two spraying discs 22. Two connecting plates 24 are fixedly mounted on the outer wall of the limiting ring 21. The inner walls of the two connecting plates 24 are provided with circular holes. The ends of the two water inlet pipes 23 close to each other are connected to the three-way pipe 25, and the ends of the two water inlet pipes 23 far from each other are both connected to the circular holes and connected to the spraying discs 22. The inner wall of the spraying disc 22 is provided with spray heads 26 distributed equidistantly.

[0022] The circulation structure 4 includes a circulation water tank 41 and a return pipe 42 connected to the circulation water tank 41 , and an extraction pump 43 connected to the other end of the return pipe 42 . The output end of the extraction pump 43 is connected to a transmission pipe 44 .

[0023] The above scheme is adopted: through the design of the cooling structure 2 and the circulation structure 4, the outer surface of the plastic pipe can be sprayed with water for cooling during the extrusion molding process by means of the equidistantly distributed spray heads 26, thereby ensuring that the spraying and cooling of the outer surface of the plastic pipe can be uniform and comprehensive. In this process, part of the water will evaporate due to the high temperature, while the other part of the water will, under the action of gravity, pass through the through groove and the circulation groove, and after being filtered by the filter net 45, fall into the circulating water tank 41. This part of the water can also be extracted by the extraction pump 43 and transported to the water storage tank 3, thereby realizing the recycling of water resources, thereby greatly improving the utilization efficiency of water resources and reducing production costs.

[0024] like Figures 1 to 5 As shown, a partition 31 is provided inside the water tank 3, and the partition 31 divides the internal space of the water tank 3 into a water storage space and an installation space. A water pump 32 is provided inside the installation space and in front of the extraction pump 43. The water pump 32 and the extraction pump 43 are both fixedly installed on the inner bottom wall of the installation space. The input end of the water pump 32 is connected to one end of the three-way pipe 25 close to the water tank 3, and the output end of the water pump 32 is connected to the water extraction pipe 33.

[0025] The above scheme is adopted: a heat dissipation groove is opened on the back of the water tank 3, and a filling pipe is set on the top surface of the water tank 3 for adding water into the water tank 3. The function of the extraction pump 43 is to transfer the collected water to the circulating water tank 41, and the water pump 32 can extract the water in the water tank 3 to the spray plate 22, and then spray it out through the sprinkler head 26.

[0026] like Figures 1 to 5 As shown, it also includes a guide structure 5 located at the edges of both sides of the inner wall of the cooling box 1 and a support leg 6 located outside the circulating water tank 41 and fixedly connected to the bottom of the cooling box 1.

[0027] With the above solution, the guide structure 5 serves to limit the position of the plastic pipe.

[0028] like Figures 1 to 5 As shown, the guide structure 5 includes five equally spaced mounting frames 51 and a guide wheel 52 rotatably connected to the inner wall of the mounting frame 51. A through groove is provided on the inner bottom wall of the cooling box 1, and a matching flow groove is provided on the top surface of the circulating water tank 41 and below the through groove. A filter screen 45 is installed on the inner wall of the flow groove.

[0029] The above solution is adopted: the design of the filter 45 can reduce the problem of impurities and water being recycled together and causing the shower head 26 to be blocked.

[0030] The working principle and use process of this utility model:

[0031] First, start the water pump 32 to extract water from the water storage tank 3, then transmit it to the spray circle through the water inlet pipe 23, and finally spray water on the outer surface of the plastic pipe through the equidistantly distributed sprinkler heads 26. At this time, part of the water will evaporate due to the high temperature, while the other part of the water will, under the action of gravity, pass through the through groove and the circulation groove, and after being filtered by the filter net 45, fall into the circulating water tank 41. This part of the water can be extracted by the extraction pump 43 and transported to the water storage tank 3 for subsequent use.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe production and molding device, characterized in that: It comprises a cooling box (1), a cooling structure (2) mounted on the inner wall of the cooling box (1), and a water storage tank (3) connected to the cooling structure (2), wherein a circulation structure (4) is arranged above and below the cooling box (1); The cooling structure (2) comprises a limiting ring (21) fixedly mounted on the inner top wall of the cooling box (1), two spray discs (22) coaxially arranged with the limiting ring (21) and fixedly connected to the inner top wall of the limiting ring (21), and a water inlet pipe (23) connected to the two spray discs (22); two connecting plates (24) are fixedly mounted on the outer wall of the limiting ring (21); circular holes are provided on the inner walls of the two connecting plates (24); the ends of the two water inlet pipes (23) close to each other are connected to a three-way pipe (25) and the ends of the two water inlet pipes (23) far from each other are both connected to the circular holes and connected to the spray discs (22); and the inner wall of the spray disc (22) is provided with spray heads (26) distributed equidistantly; The circulation structure (4) comprises a circulating water tank (41), a return pipe (42) connected to the circulating water tank (41), and an extraction pump (43) connected to the other end of the return pipe (42), wherein the output end of the extraction pump (43) is connected to a transmission pipe (44).

2. A plastic pipe production and molding device according to claim 1, characterized in that: A partition (31) is provided inside the water storage tank (3), and the partition (31) divides the internal space of the water storage tank (3) into a water storage space and an installation space. A water pump (32) is provided inside the installation space and in front of the extraction pump (43). The water pump (32) and the extraction pump (43) are both fixedly installed on the inner bottom wall of the installation space. The input end of the water pump (32) is connected to one end of the three-way pipe (25) close to the water storage tank (3), and the output end of the water pump (32) is connected to the water extraction pipe (33).

3. The plastic pipe production and forming device according to claim 1, characterized in that: It also includes a guide structure (5) located at the edges of both sides of the inner wall of the cooling box (1) and a support leg (6) located outside the circulating water box (41) and fixedly connected to the bottom of the cooling box (1).

4. A plastic pipe production and forming device according to claim 3, characterized in that: The guide structure (5) comprises five mounting frames (51) which are equidistantly distributed and a guide wheel (52) which is rotatably connected to the inner wall of the mounting frames (51).

5. The plastic pipe production and forming device according to claim 1, characterized in that: The inner bottom wall of the cooling box (1) is provided with a through groove, and the top surface of the circulating water box (41) and below the through groove is provided with a matching flow groove, and the inner wall of the flow groove is installed with a filter screen (45).

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