CN217944245U - Plastic pipe extrusion die - Google Patents

Abstract

The utility model discloses a plastic pipe extrusion tooling, including workstation, extruder, make-up machine, sizing cover and module body, both ends about the workstation middle part are located to the make-up machine symmetry, one side middle part on the workstation is located to the extruder, be equipped with the aircraft nose on the extruder, the sizing cover is located the aircraft nose, the sizing cover is located two sets of between the make-up machine, be equipped with driver part on the make-up machine, the last transmission track that is equipped with of driver part, the transmission track is the setting of oval structure, be equipped with a plurality of head and the tail articulated track extension boards on the circular transmission track of waist, module body one side is equipped with the module mount pad, the module body passes through module mount pad and track extension board connection, the module body forms head and the tail through the track extension board and seals the module chain of connection. The utility model relates to a plastic mold technical field specifically is a can prevent plastics tubular product extrusion tooling of bellows fracture.

Description

Plastic pipe extrusion die

Technical Field

The utility model relates to a plastic mold technical field specifically is plastic pipe extrusion tooling.

Background

The corrugated pipe refers to a pipe with an outer wall in a regular corrugated shape, and generally comprises a single-wall corrugated pipe and a double-wall corrugated pipe, wherein the single-wall corrugated pipe only has one layer of regular corrugated outer wall, and the double-wall corrugated pipe generally has a straight inner wall and a regular corrugated outer wall. The corrugated pipe is usually formed by extruding molten plastic melt by an extruder and performing gas-assisted forming through a special corrugated pipe forming machine and a corrugated pipe module, wherein the corrugated pipe module is generally two semicircles and runs on the forming machine along a specific track to realize continuous production, the two semicircles are combined to form the corrugated pipe module, a joint line along the axial direction of the pipe inevitably exists at a corresponding position of the produced pipe, particularly, when the equipment runs for a long time, the joint line on the surface of the pipe is very obvious after the module is worn, when the pipe is subjected to external pressure, the pipe is easy to axially crack at the position of the joint line due to the internal stress existing at the position of the joint line, and in order to avoid the axial cracking of the stress of the joint line of the pipe, a manufacturer usually adopts methods of adding tear-resistant raw materials and reinforcing agents, reducing the production speed, replacing new modules and the like to cause waste of production cost. Therefore, aiming at the existing problems, the plastic pipe extrusion die capable of preventing the corrugated pipe from cracking is provided.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming current technical defect, the utility model provides a can prevent plastic pipe extrusion tooling of bellows fracture.

The utility model adopts the following technical scheme: the utility model provides a plastic pipe extrusion die, including workstation, extruder, make-up machine, sizing cover and module body, both ends about the workstation middle part are located to the make-up machine symmetry, workstation one side middle part is located to the extruder, be equipped with the aircraft nose on the extruder, the sizing cover is located on the aircraft nose, the sizing cover is located two sets of between the make-up machine, be equipped with driver part on the make-up machine, the last transmission track that is equipped with of driver part, the transmission track is oval structure setting, be equipped with a plurality of head and the tail articulated track extension board on the oval transmission track, module body one side is equipped with the module mount pad, the module body passes through the module mount pad and is connected with the track extension board, the module body forms the module chain of end to end closed connection through the track extension board.

The vacuum groove is formed in the module body, and a curve section mould tangent plane is formed in the module body.

Furthermore, the transmission rails arranged on the two groups of forming machines are arranged in parallel, the module bodies on the two groups of transmission rails are arranged symmetrically and are in close contact with each other to form a corrugated pipe inner cavity, the sizing sleeve is positioned in the middle of the corrugated pipe inner cavity, and the section surfaces of the curve section molds on the module bodies are in contact with each other.

Furthermore, the rotation directions of the two groups of the kidney-shaped transmission tracks are opposite to each other.

In order to cool the corrugated pipe conveniently, an inner sleeve is fixedly mounted inside the sizing sleeve, a cavity is formed between the sizing sleeve and the inner sleeve, a plurality of groups of cooling pipes are uniformly distributed around the cavity, a plurality of groups of cooling pipes are connected to the front end and the rear end of each cooling pipe respectively, and the other ends of the inlet pipes and the water outlet pipes are connected with a cooling box.

Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: the utility model relates to a plastics tubular product extrusion tooling, its advantage lies in: through the irregular-shaped joint faces, the axial linear joint faces can be improved into axial irregular curve joint faces when the plastic corrugated pipe is machined, a continuous regular linear stress concentration line is prevented from being formed on the pipe, and the condition that the pipe is easy to crack axially due to stress concentration of the joint lines is eliminated.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the plastic pipe extrusion die of the present invention;

FIG. 2 is a schematic view of the combination structure of the plastic pipe extrusion mold module and the sizing sleeve according to the present invention;

fig. 3 is a schematic perspective view of the plastic pipe extrusion mold module body of the present invention;

FIG. 4 is a schematic structural view of a sizing sleeve of the plastic pipe extrusion die of the present invention;

fig. 5 is a schematic view of the bellows structure of the plastic pipe extrusion mold of the present invention.

The device comprises a workbench, a 2 extruder, a 3 forming machine, a 4 sizing sleeve, a 5 module body, a 6 driving part, a 7 transmission rail, 8 rail support plates, a 9 module mounting seat, a 10 vacuum groove, 11 a curve section die tangent plane, 12 a corrugated pipe inner cavity, 13, an inner sleeve, 14 a cavity, 15, a cooling pipe, 16 a water inlet pipe, 17 a water outlet pipe, 18, a cooling box, 19 a corrugated pipe, 20 and a joint line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 5, the technical solution adopted by the utility model is as follows: the plastic pipe extrusion die provided by the scheme comprises a workbench 1, an extruder 2, a forming machine 3, a sizing sleeve 4 and a module body 5, wherein the forming machine 3 is symmetrically arranged at the upper end and the lower end of the middle part of the workbench 1, the extruder 2 is arranged at the middle part of one side of the workbench 1, a machine head is arranged on the extruder 2, the sizing sleeve 4 is arranged on the machine head, the sizing sleeve 4 is positioned between the forming machine 3 and is provided with a driving part 6, the driving part 6 is provided with a driving track 7, the driving track 7 is in a waist-round structure arrangement, the waist-round driving track 7 is provided with a plurality of track support plates 8 hinged with one end to the other end, one side of the module body 5 is provided with a module mounting seat 9, the module body 5 is connected with the track support plates 8 through the module mounting seat 9, and the module body 5 forms a module chain with closed end to end connection through the track support plates 8.

As shown in fig. 3, a vacuum groove 10 is provided in the module body 5, and a curved section 11 is provided on the module body 5.

As shown in fig. 1 and fig. 2, the two sets of transmission tracks 7 disposed on the forming machine 3 are disposed in parallel, the module bodies 5 on the two sets of transmission tracks 7 are symmetrically disposed and closely contacted with each other to form a corrugated tube inner cavity 12, the sizing sleeve 4 is located in the middle of the corrugated tube inner cavity 12, and the curved die cut surfaces 11 on the module bodies 5 are contacted with each other.

As shown in fig. 1, the rotation directions of the two sets of transmission rails 7 are opposite to each other.

As shown in fig. 2 and 4, an inner sleeve 13 is fixedly installed inside the sizing sleeve 4, a cavity 14 is formed between the sizing sleeve 4 and the inner sleeve 13, a plurality of groups of cooling pipes 15 are uniformly distributed and arranged around the cavity 14, the front end and the rear end of each group of cooling pipes 15 are respectively connected with a water inlet pipe 16 and a water outlet pipe 17, and the other ends of the water inlet pipe 16 and the water outlet pipe 17 are connected with a cooling box 18.

When the device is used specifically, with the operation of the forming machine 3, a pipe blank in a molten state is formed by a pipe material extruded by the extruder 2 and enters the inner cavity 12 of the corrugated pipe formed by the die assembly of the module body 5, the inner layer and the outer layer of the pipe blank form the corrugated pipe 19 under the action of internal air pressure and external negative pressure, and the corrugated pipe 19 is shaped when the pipe blank is hot, wherein the extrusion speed of the extruder 2 is the same as the operation speed of the driving track 7 during the transportation of the forming machine 3, cooling water is circulated through a cooling water path formed by the water inlet pipe 16, the water outlet pipe 17 and the cooling pipe 15 by the cooling box 18 to cool the shaped corrugated pipe 19, and as the die assembly surface 13 of the module body 5 is nonlinear, the die assembly line 20 formed on the surface of the corrugated pipe 19 is also nonlinear, the phenomenon that the corrugated pipe 19 is prone to linear cracking on the die assembly line 20 due to stress concentration when the corrugated pipe 19 is subjected to crushing force is avoided, the situation that the corrugated pipe 19 is prevented from axial cracking occurs, the service life of the module body 5 is prolonged while the production and processing cost is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. Plastics tubular product extrusion tooling, its characterized in that: including workstation, extruder, make-up machine, sizing cover and module body, both ends about the workstation middle part are located to the make-up machine symmetry, workstation one side middle part is located to the extruder, be equipped with the aircraft nose on the extruder, the sizing cover is located on the aircraft nose, the sizing cover is located two sets of between the make-up machine, be equipped with the driver part on the make-up machine, be equipped with the transmission track on the driver part, the transmission track is oval structure setting, be equipped with a plurality of end to end articulated track extension boards on the oval transmission track, module body one side is equipped with the module mount pad, the module body passes through the module mount pad and is connected with the track extension board, the module body forms end to end through the track extension board and seals the module chain of connection.

2. The plastic pipe extrusion die of claim 1, wherein: the vacuum groove is arranged in the module body, and a curve section mould tangent plane is arranged on the module body.

3. The plastic pipe extrusion die of claim 2, wherein: the two groups of transmission tracks arranged on the forming machine are arranged in parallel, the module bodies on the two groups of transmission tracks are symmetrically arranged and are in close contact with each other to form a corrugated pipe inner cavity, the sizing sleeve is positioned in the middle of the corrugated pipe inner cavity, and tangent planes of curve section molds on the module bodies are in contact with each other.

4. A plastic pipe extrusion die as claimed in claim 3, wherein: the rotation directions of the two groups of the waist-shaped circular transmission tracks are opposite to each other.

5. The plastic pipe extrusion die of claim 4, wherein: the inside fixed mounting of sizing cover has interior sleeve pipe, vacuole formation between sizing cover and the interior sleeve pipe, the inside equipartition of cavity is encircleed and is provided with the multiunit cooling tube, the multiunit both ends are connected with inlet tube and outlet pipe respectively around the cooling tube, the inlet tube and the outlet pipe other end are connected with the cooler bin.

Images