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CN-121989424-A - PVC plastic pipe production is with two-way extrusion die with rapid cooling function

CN121989424ACN 121989424 ACN121989424 ACN 121989424ACN-121989424-A

Abstract

The invention discloses a two-way extrusion die with a rapid cooling function for PVC plastic pipe production, which belongs to the technical field of pipe production and comprises a die body, wherein two sides of the inside of the die body are provided with a feeding channel, a die core is arranged in the feeding channel, one side end part of the die core is fixedly connected with the inner wall of the feeding channel through a plurality of connecting blocks, a forming channel is formed between the die core and the feeding channel, one end of the die body is provided with a mounting component which is convenient to disassemble and assemble, and a cooling component for cooling and shaping the pipe is arranged in the die body.

Inventors

  • ZHANG MIN

Assignees

  • 安徽红叶管道科技有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (9)

  1. 1. The bidirectional extrusion die with the rapid cooling function for producing the PVC plastic pipe comprises a die body (1) and is characterized in that two sides of the inside of the die body (1) are provided with a feeding channel (13), a die core (11) is arranged in the feeding channel (13), one side end part of the die core (11) is fixedly connected with the inner wall of the feeding channel (13) through a plurality of connecting blocks (15), a forming channel (12) is formed between the die core (11) and the feeding channel (13), one end of the die body (1) is provided with an installation component (3) which is convenient to disassemble and assemble, and a cooling component (2) for cooling and shaping the pipe is arranged inside the die body (1); The cooling assembly (2) comprises a cooling cavity (23), the cooling cavity (23) is formed in the positions, corresponding to the forming channels (12), of the two sides of the inner portion of the die body (1), the water inlet pipe (21) and the water outlet pipe (22) are respectively arranged in the positions, corresponding to the cooling cavity (23), of the two ends of the die body (1), the spiral blades (24) are fixedly arranged in the cooling cavity (23), and the spiral channels (25) are formed between the spiral blades (24) and the inner walls of the cooling cavity (23).
  2. 2. The bidirectional extrusion die with the rapid cooling function for producing PVC plastic pipes, as claimed in claim 1, is characterized in that the cooling assembly (2) further comprises a plurality of heat conduction columns (26), the heat conduction columns (26) are uniformly distributed between the cooling cavity (23) and the forming channel (12), and a dust screen (27) is arranged inside the water inlet pipe (21).
  3. 3. The bidirectional extrusion die with the rapid cooling function for producing the PVC plastic pipes is characterized in that a rubber sealing gasket (16) is fixedly arranged at one end of the die body (1), and a conical body (14) is fixedly arranged at one end of the die core (11).
  4. 4. The bidirectional extrusion die with the rapid cooling function for producing the PVC plastic pipe is characterized in that connecting flanges are fixedly arranged at the end parts of the water inlet pipe (21) and the water outlet pipe (22), and the dustproof net (27) is connected with the water inlet pipe (21) in a clamping mode.
  5. 5. The bidirectional extrusion die with the rapid cooling function for producing PVC plastic pipes according to claim 2, wherein two ends of the heat conducting column (26) are respectively kept flush with the inner wall of the forming channel (12) and the inner wall of the cooling cavity (23).
  6. 6. The bidirectional extrusion die for producing the PVC plastic pipe with the rapid cooling function according to claim 1 is characterized in that the mounting assembly (3) comprises a mounting plate (31), one side of the die body (1) is provided with the mounting plate (31), a plurality of mounting bolts (32) are arranged on the mounting plate (31), two sides of the mounting plate (31) are slidably connected with sliding rods (35), limiting plates (36) are fixedly arranged on the surfaces of the sliding rods (35), cavities (37) matched with the limiting plates (36) are formed in the mounting plate (31), springs (38) are sleeved between the limiting plates (36) and the mounting plate (31) and outside the sliding rods (35), and clamping holes (39) matched with the sliding rods (35) are formed in the side edges of the die body (1).
  7. 7. The bidirectional extrusion die with the rapid cooling function for producing the PVC plastic pipe according to claim 6, wherein the mounting assembly (3) further comprises a convex block (33), the convex blocks (33) are fixedly arranged at two ends of the side edge of the die body (1), and clamping grooves (34) matched with the convex blocks (33) are formed at two ends of the inside of the mounting plate (31).
  8. 8. The bidirectional extrusion die with the rapid cooling function for producing PVC plastic pipes, as set forth in claim 6, is characterized in that a pull ring is fixedly arranged at one end of the slide bar (35), a slide hole matched with the slide bar (35) is formed in the mounting plate (31), and one end of the slide bar (35) far away from the pull ring is of an arc-shaped guide structure.
  9. 9. The bidirectional extrusion die with the rapid cooling function for producing PVC plastic pipes, as set forth in claim 7, is characterized in that when the die body (1) is inserted into the mounting plate (31), the side edge of the die body (1) is tightly attached to the inner wall of the mounting plate (31), and a plurality of mounting bolts (32) are arranged on the mounting plate (31) at equal intervals.

Description

PVC plastic pipe production is with two-way extrusion die with rapid cooling function Technical Field The invention belongs to the technical field of pipe production, and particularly relates to a two-way extrusion die with a rapid cooling function for PVC plastic pipe production. Background With the development of modern industry, plastic pipes are widely used in various fields, especially in construction, water supply and drainage and other projects. PVC (polyvinyl chloride) plastic pipes are a mainstream product in the market due to their excellent physicochemical properties, such as good corrosion resistance and high heat resistance. The PVC plastic pipe is produced by extrusion molding technology, which is a process of heating and melting raw materials and then shaping the raw materials through a die. The problem that current PVC plastic pipe two-way extrusion tooling generally has cooling efficiency to be low is difficult to realize quick cooling and accurate design to just extruding the tubular product, easily leads to tubular product deformation, dimensional stability not enough, and simultaneously, the whole structural design of mould is comparatively complicated, and the dismouting is loaded down with trivial details, is unfavorable for daily clearance, overhauls and easy-damaged piece changes, influences production continuity and equipment life. Disclosure of Invention In order to solve the problems in the background technology, the invention provides a bidirectional extrusion die with a rapid cooling function for producing PVC plastic pipes, which has the characteristics of rapid cooling, precise shaping and convenient disassembly. The invention provides a bidirectional extrusion die with a rapid cooling function for PVC plastic pipe production, which comprises a die body, wherein two sides of the inside of the die body are provided with feeding channels, a die core is arranged in the feeding channels, one side end part of the die core is fixedly connected with the inner wall of the feeding channels through a plurality of connecting blocks, a forming channel is formed between the die core and the feeding channels, one end of the die body is provided with a mounting component which is convenient to disassemble and assemble, and a cooling component for cooling and shaping the pipe is arranged in the die body; the cooling assembly comprises a cooling cavity, the cooling cavity is formed in the positions, corresponding to the forming channels, of the two sides of the inner portion of the die body, the water inlet pipe and the water outlet pipe are respectively arranged in the positions, corresponding to the cooling cavity, of the two ends of the die body, the spiral blades are fixedly arranged in the cooling cavity, and the spiral channels are formed between the spiral blades and the inner walls of the cooling cavity. Further, the cooling assembly further comprises a plurality of heat conduction columns, the heat conduction columns are uniformly distributed between the cooling cavity and the forming channel, and a dust screen is arranged inside the water inlet pipe. Further, the one end of mould body is fixed and is provided with the rubber seal pad, and the one end of mold core is fixed and is provided with the conical body. Furthermore, the end parts of the water inlet pipe and the water outlet pipe are fixedly provided with connecting flanges, and the dustproof net is connected with the water inlet pipe in a clamping mode. Furthermore, the two ends of the heat conduction column are respectively kept flush with the inner wall of the forming channel and the inner wall of the cooling cavity. Further, the installation component includes the mounting panel, and one side of mould body is equipped with the mounting panel, is equipped with a plurality of mounting bolts on the mounting panel, and the both sides sliding connection of mounting panel has the slide bar, and slide bar fixed surface is equipped with the limiting plate, and the cavity with the limiting plate looks adaptation is seted up to the inside mounting panel, between limiting plate and the mounting panel, slide bar outside cover have the spring, and the draw-in hole with the slide bar looks adaptation has been seted up to the mould body side. Further, the installation component still includes the lug, and the fixed lug that is equipped with in mould body side both ends, the draw-in groove with lug looks adaptation is seted up at the inside both ends of mounting panel. Further, the pull ring is fixedly arranged at one end of the sliding rod, a sliding hole matched with the sliding rod is formed in the mounting plate, and one end, far away from the pull ring, of the sliding rod is of an arc-shaped guide structure. Further, when the die body inserts the mounting panel, die body side and mounting panel inner wall closely laminate, and a plurality of mounting bolts are equidistant on the mounting panel and arrange. Compared with the prior art,