CN214448364U

CN214448364U - PVC tubular product mould

Info

Publication number: CN214448364U
Application number: CN202120342095.0U
Authority: CN
Inventors: 何晶晶; 沈文伶; 史肖肖; 杨卫东; 赵亚文
Original assignee: Hebei Chensheng Plastic Products Co ltd
Current assignee: Hebei Chensheng Plastic Products Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-22
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a PVC tubular product mould, include: a mold body; the middle part of the inner wall of the die body is provided with a support ring; the bottom of the inner wall of the support ring is fixedly connected with a connecting block; the top surface of the connecting block is provided with a positioning round block; one end of the filter cartridge is fixedly connected to the side surface of the sealing disc; the other end of the filter cartridge is connected with the inner side wall of the die body in an abutting mode; a driving motor is arranged in the motor groove; an output shaft of the driving motor is in transmission connection with a turntable through the sealing disc; the rotating disc is provided with a plurality of brush rods around the center array of the side surface; a conical shunt body is fixedly connected to the center of the side surface of the turntable; a heating rod is arranged in the brush rod; the brush rod is connected with the inner wall of the filter cylinder in a sliding way; the other side surface of the positioning round block is detachably connected with a core rod; the feed inlet is communicated with the inner cavity of the filter cartridge; the other side of the die body is connected with a pressurizing ring and a die through screws in sequence; the mould has been realized carrying out nimble adjustment to the specification of producing different tubular products, and the cartridge filter inner wall can be cleared up to the brush-holder stud, and the prevention improves PVC tubular product shaping quality because the condition of impurity jam cartridge filter.

Description

PVC tubular product mould

Technical Field

The utility model relates to a tubular product mould technical field especially relates to a PVC tubular product mould.

Background

Because some reactants are usually added in the process of forming the PVC pipe, impurities can be doped in the molten material, the forming quality of an extruder product is influenced, particularly for secondary processing performed by recycling waste plastics, although the raw materials are cleaned before processing, a large amount of impurities can still be doped, the existence of the impurities can cause the blockage of the extruder head in the extrusion forming process, and the flow rate of the plastics in the extruder is unstable, so that the quality of the PVC pipe obtained by extrusion forming is not high.

The existing extrusion molding die for the PVC pipe generally comprises a neck die and a core die, and materials enter between the neck die and the core die to be extruded after being mixed and hot-melted in an extruder. In the prior art, one PVC pipe extrusion molding die can only use a mouth die and a core die with certain sizes, the die cannot be flexibly adjusted according to the specification of the pipe to be produced, and when the mouth die or the core die in the die is worn, the corresponding mouth die or the corresponding core die cannot be replaced, the whole die needs to be scrapped, and the use flexibility is low;

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a PVC pipe mould to solve the problems existing in the prior art, which can realize the convenience of changing a die and a core rod for manufacturing PVC pipes with different sizes, and the convenience of cleaning a filter cylinder and the inner wall of a mould body, prevent the condition that the filter cylinder is blocked by impurities, and improve the forming quality of the PVC pipe; the turntable and the brush rod play a role in assisting in stirring, so that the mixing degree of the materials is further improved; the heating rod can keep the materials in a molten state, and the phenomenon of cooling and condensation of the materials is prevented.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a PVC tubular product mould, include: a mold body; a support ring is arranged in the middle of the inner wall of the die body; the bottom of the inner wall of the support ring is fixedly connected with a connecting block; the top surface of the connecting block is provided with a positioning round block; a motor groove is formed in one side of the positioning round block, and a sealing disc is fixedly connected with the positioning round block; one end of the filter cartridge is fixedly connected to the side surface of the sealing disc; the other end of the filter cartridge is connected with the inner side wall of the die body in an abutting mode; a driving motor is arranged in the motor groove; an output shaft of the driving motor penetrates through the sealing disc and is connected with a turntable in a transmission way; the rotating disc is provided with a plurality of brush rods around the center array of the side surface; a conical shunt body is fixedly connected to the center of the side surface of the turntable; a heating rod is arranged in the brush rod; the brush rod is connected with the inner wall of the filter cylinder in a sliding way; the other side surface of the positioning round block is detachably connected with a core rod; a feed inlet is formed in one side of the die body; the feed inlet is communicated with the inner cavity of the filter cartridge; and the other side of the die body is connected with a pressurizing ring and a die sequentially through screws.

Preferably, the position of the positioning round block is fixed by the supporting ring through the connecting block, the core rod is detachably connected and is convenient to replace, the function of disassembling all structures in the die body is realized, the die and the core rod are convenient to replace for manufacturing PVC pipes with different sizes, and the filter cartridge and the inner wall of the die body are convenient to clean; the filter cartridge can filter impurities in the material, and the brush rod can play a role in cleaning the inner wall of the filter cartridge when the material enters the die body, so that the condition that the filter cartridge is blocked by the impurities is prevented, and the forming quality of the PVC pipe is improved; the arrangement of the turntable and the brush rod can also play a role in auxiliary stirring, so that the mixing degree of the materials is further improved; the heating rod can keep the materials in a molten state, and the phenomenon of cooling and condensation of the materials is prevented.

A material cavity is formed between the outer wall of the filter cylinder and the inner wall of the die body; the inner wall of the pressurizing ring is obliquely arranged; a pressurizing cavity is formed between the inner wall of the pressurizing ring and the outer wall of the mandrel; the outer wall of the ring opening with larger inner diameter of the pressurizing ring is abutted against the side surface of the support ring; the material cavity is communicated with the pressurizing cavity.

Preferably, the pressurizing cavity formed by the pressurizing ring and the filter cylinder can enhance the tightness of the materials and improve the quality of the PVC pipe when the materials move from a larger space to a smaller space; the outer wall of the opening of the pressurizing ring with the larger inner diameter is abutted against the side surface of the support ring, so that leakage of materials is prevented.

A plastic cavity is formed between the inner wall of the neck ring mold and the outer wall of the core rod; the outer wall of the ring opening with the smaller inner diameter of the pressurizing ring is abutted against the side wall of the neck ring; the molding cavity is communicated with the pressurizing cavity.

An annular inner cavity is formed in the neck ring mold; the top of the peripheral surface of the neck ring mold is provided with an output hole; the bottom of the peripheral surface of the neck ring mold is provided with an input hole; the input hole and the output hole are communicated with the annular inner cavity.

Preferably, the coolant is introduced into the annular inner cavity from the input hole and flows out from the output hole, so that the coolant in the whole annular inner cavity can be ensured to be in a full state, and the cooling effect is enhanced.

A plurality of electrically cooled rods are arrayed about the axis within the core rod.

Preferably, the material is from the extruder and continuously from the feed inlet guide cartridge filter inner chamber, makes the material in the die body be in the melting flow state, behind the design in the mould cavity, because the pressure of follow-up material, extrudes the pipe, and the cooling rod that sets up can be followed PVC tubular product inner wall and cooled off, cooperates the coolant in the annular inner chamber, has prevented that the pipe from getting into after extruding by the mould and before the case is stereotyped under the action of gravity and taking place to warp, is favorable to getting into the design processing of case of stereotypeing.

The electric cooling rod, the motor with the heating rod wire all runs through the location circle piece, the connecting block with support ring electric connection external power source.

The positioning round block, the connecting block and the supporting ring are connected through screws.

Preferably, the positioning round block is arranged, the connecting block is connected with the supporting ring through a screw, and the pressurizing ring is connected with the mouth mold through a screw, so that the flexible adjustment of the mold for producing different pipe specifications is realized.

The utility model discloses a following technological effect: the detachable connection of the core rod is realized, the replacement is convenient, the function of detaching all structures in the die body is realized, the die and the core rod can be conveniently replaced aiming at manufacturing PVC pipes with different sizes, and the filter cartridge and the inner wall of the die body can be conveniently cleaned; the filter cartridge can filter impurities in the material, and the brush rod can play a role in cleaning the inner wall of the filter cartridge when the material enters the die body, so that the condition that the filter cartridge is blocked by the impurities is prevented, and the forming quality of the PVC pipe is improved; the arrangement of the turntable and the brush rod can also play a role in auxiliary stirring, so that the mixing degree of the materials is further improved; the heating rod that sets up can make the material keep the molten condition, and the phenomenon that the prevention material cooling condenses takes place, has realized that the mould carries out nimble adjustment to the specification of producing different tubular products.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

The device comprises a die body 1, a support ring 2, a connecting block 3, a positioning round block 4, a sealing disc 5, a filter cartridge 6, a driving motor 7, a turntable 8, a brush rod 9, a conical shunt body 10, a heating rod 11, a core rod 12, a feed inlet 13, a pressurizing ring 14, a die 15, a material cavity 16, a pressurizing cavity 17, a molding cavity 18, an annular inner cavity 19, an output hole 20, an input hole 21 and a cooling rod 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a PVC tubular product mould, include: a die body 1; the middle part of the inner wall of the die body 1 is provided with a support ring 2; the bottom of the inner wall of the support ring 2 is fixedly connected with a connecting block 3; the top surface of the connecting block 3 is provided with a positioning round block 4; one side of the positioning round block 4 is provided with a motor groove and is fixedly connected with a sealing disc 5; one end of a filter cartridge 6 is fixedly connected to the side surface of the sealing disc 5; the other end of the filter cartridge 6 is connected with the inner side wall of the die body 1 in an abutting mode; a driving motor 7 is arranged in the motor groove; an output shaft of the driving motor 7 penetrates through the sealing disc 5 and is connected with a turntable 8 in a transmission way; the turntable 8 is provided with a plurality of brush rods 9 around the center array of the side surface; a conical shunt body 10 is fixedly connected to the center of the side surface of the rotating disc 8; a heating rod 11 is arranged in the brush rod 9; the brush rod 9 is connected with the inner wall of the filter cylinder 6 in a sliding way; the other side surface of the positioning round block 4 is detachably connected with a core rod 12; a feed inlet 13 is formed in one side of the die body 1; the feed inlet 13 is communicated with the inner cavity of the filter cartridge 6; the other side of the die body 1 is connected with a pressurizing ring 14 and a die 15 through screws in sequence.

A material cavity 16 is formed between the outer wall of the filter cartridge 6 and the inner wall of the die body 1; the inner wall of the pressurizing ring 14 is obliquely arranged; a pressurizing cavity 17 is formed between the inner wall of the pressurizing ring 14 and the outer wall of the mandrel 12; the outer wall of the ring opening with larger inner diameter of the pressurizing ring 14 is abutted against the side surface of the support ring 2; the material chamber 16 communicates with the pressurizing chamber 17.

A molding cavity 18 is formed between the inner wall of the neck ring mold 15 and the outer wall of the core rod 12; the outer wall of the orifice with the smaller inner diameter of the pressurizing ring 14 is abutted against the side wall of the mouth mold 15; the molding cavity 18 communicates with the pressurizing cavity 17.

An annular inner cavity 19 is formed in the mouth mold 15; the top of the peripheral surface of the mouth mold 15 is provided with an output hole 20; the bottom of the peripheral surface of the mouth mold 15 is provided with an input hole 21; the inlet aperture 21 and the outlet aperture 20 are both in communication with the annular cavity 19.

Within the core rod 12 are an array of electrically cooled rods 22 about an axis.

The electric cooling rod 22, the motor and the heating rod 11 are all penetrated through the positioning round block 4, and the connecting block 3 and the support ring 2 are electrically connected with an external power supply.

The positioning round block 4, the connecting block 3 and the support ring 2 are connected through screws.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A PVC pipe mold is characterized by comprising: a mold body (1); a support ring (2) is arranged in the middle of the inner wall of the die body (1); the bottom of the inner wall of the support ring (2) is fixedly connected with a connecting block (3); the top surface of the connecting block (3) is provided with a positioning round block (4); a motor groove is formed in one side of the positioning round block (4), and a sealing disc (5) is fixedly connected with the motor groove; one end of the filter cartridge (6) is fixedly connected to the side surface of the sealing disc (5); the other end of the filter cartridge (6) is connected with the inner side wall of the die body (1) in an abutting mode; a driving motor (7) is arranged in the motor groove; an output shaft of the driving motor (7) penetrates through the sealing disc (5) and is connected with a rotary disc (8) in a transmission way; the turntable (8) is provided with a plurality of brush rods (9) around the center of the side surface in an array manner; a conical shunt body (10) is further fixedly connected to the center of the side face of the rotary disc (8); a heating rod (11) is arranged in the brush rod (9); the brush rod (9) is connected with the inner wall of the filter cylinder (6) in a sliding way; the other side surface of the positioning round block (4) is detachably connected with a core rod (12); a feed inlet (13) is formed in one side of the die body (1); the feed inlet (13) is communicated with the inner cavity of the filter cartridge (6); the other side of the die body (1) is connected with a pressurizing ring (14) and a die (15) in sequence through screws.

2. The PVC pipe mold of claim 1, wherein: a material cavity (16) is formed between the outer wall of the filter cylinder (6) and the inner wall of the die body (1); the inner wall of the pressurizing ring (14) is obliquely arranged; a pressurizing cavity (17) is formed between the inner wall of the pressurizing ring (14) and the outer wall of the mandrel (12); the outer wall of the ring opening with larger inner diameter of the pressurizing ring (14) is abutted against the side surface of the support ring (2); the material cavity (16) is communicated with the pressurizing cavity (17).

3. The PVC pipe mold of claim 2, wherein: a molding cavity (18) is formed between the inner wall of the neck ring mold (15) and the outer wall of the core rod (12); the outer wall of the orifice of the pressurizing ring (14) with smaller inner diameter is abutted against the side wall of the neck ring (15); the molding cavity (18) is communicated with the pressurizing cavity (17).

4. The PVC pipe mold of claim 1, wherein: an annular inner cavity (19) is formed in the neck ring mold (15); the top of the peripheral surface of the neck ring mold (15) is provided with an output hole (20); the bottom of the peripheral surface of the neck ring mold (15) is provided with an input hole (21); the input hole (21) and the output hole (20) are communicated with the annular inner cavity (19).

5. The PVC pipe mold of claim 1, wherein: a plurality of electrically cooled rods (22) are arrayed about the axis within the mandrel (12).

6. The PVC pipe mold of claim 5, wherein: the electric cooling rod (22), the motor with heating rod (11) wire all runs through location circle piece (4), connecting block (3) with support ring (2) electric connection external power source.

7. The PVC pipe mold of claim 1, wherein: the positioning round block (4), the connecting block (3) and the supporting ring (2) are connected through screws.