Large-caliber sizing sleeve

Abstract

The utility model discloses a large-caliber sizing sleeve which comprises a sizing sleeve body and further comprises a cooling mechanism, the cooling mechanism is arranged on the periphery of the sizing sleeve body, and the cooling mechanism comprises a sizing pipe, an annular fin, a water supply pipe, a spray hole A, an annular cavity and a flow dividing pipe. A sizing pipe is arranged at one end of the sizing sleeve body, annular fins are fixedly connected to the periphery of one end of the sizing pipe, when the sizing sleeve enters the initial section of the interior of the sizing pipe, heat dissipation treatment is mainly conducted through the annular fins, water sprayed out of spray holes A conducts cooling and heat dissipation on the annular fins, and then a pipe fitting is input to the middle section position; at the moment, the annular cavity is filled with cooling water input by the flow dividing pipe, comprehensive and rapid cooling treatment can be conducted on the periphery of the middle-section pipe fitting, the setting speed is increased, initial cooling of the pipe fitting is guaranteed through the initial-section cooling assembly and the middle-section cooling assembly, and meanwhile the problem that the large-diameter pipe fitting is directly in contact with water in the initial stage of unsetting and accordingly deformation is caused is solved; and the forming stability and the forming quality of the large-diameter pipe fitting are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting production, in particular to a large-diameter sizing sleeve. Background Art

[0002] The sizing sleeve is one of the important equipment components in the pipe production process. It mainly controls the outer diameter, ovality and surface finish of the pipe extruded from the plastic extruder through a vacuum shaping box to meet the production standard requirements. The high-temperature re-product plastic pipe at about 200°C extruded from the plastic extruder needs to enter the sizing sleeve for rapid shaping. It is widely used in pipe production.

[0003] The existing sizing sleeve has the following disadvantages during use: the vacuum shaping area of ​​the pipe vacuum sizing sleeve basically adopts a vacuum groove structure, that is, a small groove structure is opened on the outer periphery of the sizing sleeve, and the pipe fitting is cooled by the vacuum groove during the shaping process. When large-diameter pipe fittings are produced, the shaping speed is slow due to the large diameter of the pipe fittings. The rapid cooling during the initial cooling process during the production of the existing sizing sleeve is easy to cause deformation of the pipe fittings, affecting the molding quality. For this reason, we propose a large-diameter sizing sleeve. Utility Model Content

[0004] The main purpose of the utility model is to provide a large-diameter sizing sleeve, which can effectively solve the problems in the background technology by using a cooling mechanism arranged on the outer periphery of the sizing sleeve body and using a segmented cooling structure to ensure the cooling effect and avoid deformation of the pipe fittings.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A large-diameter sizing sleeve comprises a sizing sleeve main body and a cooling mechanism. The cooling mechanism is arranged on the outer periphery of the sizing sleeve main body. The cooling mechanism comprises a sizing pipe, annular fins, a water supply pipe, a spray hole A, an annular cavity and a diverter pipe. The sizing sleeve main body is provided with a sizing pipe at one end and an annular fin is fixedly connected to the outer periphery of one end of the sizing pipe. The sizing sleeve main body is provided with water supply pipes located at the upper and lower ends of the sizing pipe and the spray holes A facing the annular fins are arranged on the surface of the sizing sleeve main body. An annular cavity is opened in the middle section of the sizing pipe and a diverter pipe inserted into the annular cavity is arranged at the bottom of the water supply pipe.

[0007] Furthermore, it also includes a cooling mechanism. The cooling mechanism is arranged at the outer end of the sizing tube, and the cooling mechanism includes an arc-shaped groove and a spray hole B. The surface of the sizing tube also has an arc-shaped groove when it is opened at one end away from the annular fin, and the spray holes B are installed at the corresponding positions of the surface of the water supply pipe and the arc-shaped groove. An arc-shaped groove structure is arranged at the outer end of the sizing tube. The spray holes B arranged on the surface of the water supply pipe directly spray the water onto the end surface of the sizing tube during water supply, and enter the interior of the sizing tube from the arc-shaped groove to directly contact the pipe fittings, thereby realizing the last step of cooling and shaping treatment of the pipe fittings.

[0008] Furthermore, a drainage pipe connected to the interior of the annular cavity is installed at the bottom of the middle section of the sizing pipe; the water inside the annular cavity can be discharged through the drainage pipe.

[0009] Furthermore, a water inlet pipe connected to the inside of the water supply pipe is installed on one side of the surface of the sizing sleeve body; the water inlet pipe structure can be connected to an external water supply pipeline to supply water to the inside of the water supply pipe during use.

[0010] Furthermore, the arc-shaped through groove penetrates the wall of the sizing pipe; the arc-shaped through groove structure penetrates the wall of the sizing pipe, so that the cooling water can directly contact the pipe fitting.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the extruded large-diameter product enters the interior of the sizing tube from the end of the sizing tube near the end of the annular fin. When entering the initial section of the interior of the sizing tube, the heat is mainly dissipated by the annular fin, and the water sprayed from the spray hole A cools and dissipates the heat of the annular fin. Then the pipe is input to the middle section. At this time, the annular cavity is filled with cooling water input by the shunt pipe, which can comprehensively and quickly cool the periphery of the middle section pipe, accelerate the shaping rate, and the initial and middle section cooling components can ensure the initial cooling of the pipe, while avoiding the deformation problem caused by the large-diameter pipe directly contacting the water in the early stage of unshaping, thereby improving the forming stability and forming quality of the large-diameter pipe; an arc-shaped through groove structure is provided at the outer end position of the sizing tube, and the water sprayed from the spray hole B provided on the surface of the water supply pipe directly splashes onto the end surface of the sizing tube when supplying water, and enters the interior of the sizing tube from the arc-shaped through groove position to directly contact the pipe, thereby realizing the last step of cooling and shaping of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a large-diameter sizing sleeve.

[0013] Figure 2 The utility model is a schematic diagram of the internal structure of a large-diameter sizing sleeve.

[0014] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of an annular cavity of a large-diameter sizing sleeve.

[0015] In the figure: 1. sizing sleeve body; 2. cooling mechanism; 201. sizing tube; 202. annular fin; 203. water supply pipe; 204. spray hole A; 205. annular cavity; 206. diverter pipe; 207. drain pipe; 208. water inlet pipe; 3. cooling mechanism; 301. arc-shaped groove; 302. spray hole B. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a large-diameter sizing sleeve includes a sizing sleeve main body 1 and a cooling mechanism 2. The cooling mechanism 2 is arranged on the outer periphery of the sizing sleeve main body 1. The cooling mechanism 2 includes a sizing pipe 201, an annular fin 202, a water supply pipe 203, a spray hole A204, an annular cavity 205 and a diverter pipe 206. The sizing sleeve main body 1 is provided with a sizing pipe 201 at one end and an annular fin 202 is fixedly connected to the outer periphery of one end of the sizing pipe 201. The surface of the sizing sleeve main body 1 is provided with water supply pipes 203 located at the upper and lower ends of the sizing pipe 201 and the surfaces of the water supply pipes 203 are all provided with spray holes A204 facing the annular fin 202. An annular cavity 205 is opened at the middle section of the sizing pipe 201 and a diverter pipe 206 inserted into the annular cavity 205 is installed at the bottom of the water supply pipe 203.

[0018] Among them, it also includes a cooling mechanism 3. The cooling mechanism 3 is arranged at the outer periphery of the sizing tube 201. The cooling mechanism 3 includes an arcuate groove 301 and a spray hole B302. The surface of the sizing tube 201 away from the annular fin 202 also has an arcuate groove 301. The surface of the water supply pipe 203 corresponding to the arcuate groove 301 is equipped with spray holes B302. The arcuate groove 301 structure is arranged at the outer periphery of the sizing tube 201. The spray hole B302 arranged on the surface of the water supply pipe 203 sprays water directly onto the end surface of the sizing tube 201 during water supply, and enters the interior of the sizing tube 201 from the position of the arcuate groove 301 to directly contact the pipe fittings, thereby realizing the last step of cooling and shaping treatment of the pipe fittings.

[0019] Among them, a drainage pipe 207 connected to the inside of the annular cavity 205 is installed at the bottom of the middle section of the sizing pipe 201, and a water inlet pipe 208 connected to the inside of the water supply pipe 203 is installed on one side of the surface of the sizing sleeve body 1; the water inside the annular cavity 205 can be discharged through the drainage pipe 207, and the water inlet pipe 208 structure can be connected to the external water supply pipe 203 to supply water to the inside of the water supply pipe 203 during use.

[0020] The arc-shaped through groove 301 penetrates through the wall of the sizing tube 201 ; the arc-shaped through groove 301 structure penetrates through the wall of the sizing tube 201 , so that the cooling water can directly contact the pipe fitting.

[0021] It should be noted that the utility model is a large-diameter sizing sleeve. When in use, the extruded large-diameter product enters the sizing tube 201 from the end of the sizing tube 201 close to the annular fin 202. When entering the sizing tube 201, the annular fin 202 is mainly used for heat dissipation. The water sprayed from the spray hole A204 cools down the annular fin 202. Then the pipe is input to the middle section. At this time, the annular cavity 205 is filled with cooling water input by the shunt pipe 206, which can comprehensively and quickly cool the periphery of the middle section pipe. The initial and middle cooling components ensure the initial cooling of the pipe fittings and avoid deformation caused by direct contact with water in the early stage of unsetting, thereby improving the forming stability and quality of large-diameter pipe fittings. An arc-shaped through groove 301 structure is provided at the outer end of the sizing pipe 201. The water sprayed from the spray hole B302 on the surface of the water supply pipe 203 directly splashes onto the end surface of the sizing pipe 201 during water supply, and enters the interior of the sizing pipe 201 from the position of the arc-shaped through groove 301 to directly contact the pipe fittings, thereby realizing the last step of cooling and setting the pipe fittings.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A large-caliber calibrating sleeve, comprising a calibrating sleeve body (1), characterized in that: The cooling device further comprises a cooling mechanism (2), wherein the cooling mechanism (2) is arranged on the outer periphery of the sizing sleeve body (1), and the cooling mechanism (2) comprises a sizing tube (201), an annular fin (202), a water supply pipe (203), a spray hole A (204), an annular cavity (205) and a flow diversion pipe (206), wherein one end of the sizing sleeve body (1) is provided with the sizing tube (201), and the outer periphery of one end of the sizing tube (201) is fixedly connected with the annular fin. (202), a water supply pipe (203) located at the upper and lower ends of the sizing tube (201) is installed on the surface of the sizing sleeve body (1), and a spray hole A (204) facing the annular fin (202) is installed on the surface of the water supply pipe (203), an annular cavity (205) is opened at the middle section of the sizing tube (201), and a diverter pipe (206) inserted into the annular cavity (205) is installed at the bottom of the water supply pipe (203).

2. A large-caliber sizing sleeve according to claim 1, characterized in that: The device further comprises a cooling mechanism (3), wherein the cooling mechanism (3) is arranged at the outer end of the sizing tube (201), and the cooling mechanism (3) comprises an arc-shaped through groove (301) and a spray hole B (302). The surface of the sizing tube (201) which is away from the annular fin (202) also has an arc-shaped through groove (301), and the surface of the water supply pipe (203) is provided with spray holes B (302) at positions corresponding to the arc-shaped through groove (301).

3. A large-caliber sizing sleeve according to claim 1, characterized in that: A drainage pipe (207) connected to the interior of the annular cavity (205) is installed at the bottom of the middle section of the sizing pipe (201).

4. The large-diameter sizing sleeve according to claim 1, characterized in that: A water inlet pipe (208) connected to the inside of the water supply pipe (203) is installed on one side of the surface of the sizing sleeve body (1).

5. The large-diameter sizing sleeve according to claim 2, characterized in that: The arc-shaped through groove (301) penetrates the wall of the sizing tube (201).

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