CN110696319B

CN110696319B - Polyvinyl chloride PVC water supply pipe mould

Info

Publication number: CN110696319B
Application number: CN201911003097.0A
Authority: CN
Inventors: 张波
Original assignee: Kunshan Jurry Machinery Co ltd
Current assignee: Kunshan Jurry Machinery Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2021-10-22
Anticipated expiration: 2039-10-22
Also published as: CN110696319A

Abstract

The invention discloses a polyvinyl chloride PVC water supply pipe die which comprises a shell, a nut washer and a mandrel, wherein a base mandrel is arranged inside the shell, the mandrel is connected to the shell through a fixing rod and an inner hexagonal, torpedo tips are arranged above and below the mandrel respectively, a first die runner and a second die runner are arranged inside the shell, the first die runner and the second die runner are respectively arc-shaped, the first die runner and the second die runner are arranged around the mandrel, and the torpedo tips are arranged between the first die runner and the mandrel and between the second die runner and the mandrel respectively. The expansion part of the mold is a linear runner on the market; the double-layer bracket type die has high requirement on manufacturing precision and great difficulty; the mouth mold of the polyvinyl chloride (PVC)1200 water supply pipe mold is long, and the adjustment is difficult when the position of the mouth mold is adjusted.

Description

Polyvinyl chloride PVC water supply pipe mould

Technical Field

The invention relates to the technical field of water pipe molds, in particular to a polyvinyl chloride (PVC) water supply pipe mold.

Background

Polyvinyl chloride (PVC) water supply pipe is a synthetic material which is popular, popular and widely applied in the world, the global usage amount of the PVC water supply pipe is higher than that of various synthetic materials, at present, the specification of a mould for producing the PVC water supply pipe in China is below 800, the design of a flow channel in the mould is not very reasonable in the production process, the supply speed of raw materials is influenced, the forming of a product is influenced, the mould for large-caliber pipes needs a plurality of parts to be spliced, the condition that the joint formed by common splicing is uneven can occur, the condition of scraping is generated, the mould needs to be cleaned once after being produced for a period of time, the forming cavity is longer, and the accuracy of the forming cavity is not easy to adjust.

Disclosure of Invention

The invention aims to provide a polyvinyl chloride PVC water supply pipe die to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a polyvinyl chloride PVC feed pipe mould, includes casing and dabber, its characterized in that: a flow channel inlet is fixedly arranged at one end of the shell, the flow channel inlet is fixedly connected with an annular flow channel arranged in the shell, the annular flow channel penetrates through two ends of the shell to divide the shell into an outer shell and an inner shell, a shunt sharp corner is fixedly arranged at one end of the inner shell close to the flow channel inlet, the annular flow channel comprises a shunt flow channel and a forming flow channel, an axial hole is fixedly arranged at the axial center of the inner shell, a mandrel is fixedly arranged in the axial hole, a rear cover plate is fixedly arranged at one end of the mandrel away from the flow channel inlet by using a screw, a heating resistor is fixedly arranged between the outer annular surface of the mandrel and the inner shell, the outer annular surface of the outer shell is also fixedly provided with the heating resistor, the outer shell comprises a first outer shell, a second outer shell, a third outer shell, a fourth outer shell, a fifth outer shell, a sixth outer shell and a seventh outer shell, one end of the first outer shell is provided with the flow channel inlet, the end of the first outer shell far away from the runner inlet is fixedly provided with a second outer shell by using screws, the end of the second outer shell far away from the first outer shell is fixedly provided with a third outer shell by using screws, the end of the third outer shell far away from the second outer shell is fixedly provided with a fourth outer shell by using screws, the end of the fourth outer shell far away from the third outer shell is fixedly provided with a fifth outer shell by using screws, the end of the fifth outer shell far away from the fourth outer shell is fixedly provided with a sixth outer shell, the end of the sixth outer shell far away from the fifth outer shell is fixedly provided with a seventh outer shell, a support ring is fixedly arranged between the third outer shell and the fourth outer shell, the inner shells comprise a first inner shell, a second inner shell, a third inner shell, a fourth inner shell and a fifth inner shell, one end of the first inner shell is fixedly provided with a conical flow dividing sharp corner, and one end of the first inner shell far away from the flow dividing sharp corner is fixedly connected with the second inner shell, one end fixedly connected with third inner shell that first inner shell was kept away from to the second inner shell, the one end fixedly mounted who keeps away from the second inner shell in this third inner shell has the fourth inner shell, the one end fixedly mounted who keeps away from the third inner shell in the fourth inner shell has the fifth inner shell, fixedly connected with support ring between this second inner shell and the third inner shell.

Furthermore, the flow dividing flow channel is a gourd-shaped curved surface radian flow channel.

Furthermore, the angle of the shunting sharp corner is 20-30 degrees.

Furthermore, the connection surfaces of the first outer shell and the second outer shell and the third outer shell are surfaces with an R-angle radian, and the innermost side of a seam formed by the connection surfaces is perpendicular to the outer cambered surface of the flow channel.

Furthermore, a rhombic material passing hole for passing materials is formed in the contact position of the side end face of the support ring and the flow dividing runner.

Furthermore, a fine adjustment threaded hole is fixedly formed in the joint of the outer ring surfaces of the sixth outer shell and the seventh outer shell, and a fine adjustment screw is screwed into the fine adjustment threaded hole.

Compared with the prior art, the invention has the beneficial effects that:

1. the connecting surfaces of the first outer shell and the second outer shell and the connecting surfaces of the second outer shell and the third outer shell are surfaces with an R-angle radian, and the innermost side of a seam formed by the connecting surfaces is perpendicular to the outer arc surface of the flow channel, so that the condition that the linear flow channel is hung is avoided, and the flow blocking phenomenon is avoided; in addition, the design that circular arc type runner length is shorter than the linear type runner to reduce the dwell time of producing the material, be of value to the stable extrusion of material, 25 ~ 30 flow distribution angle, make the mould in the runner have a buffer power, reduce the damage to the mould body, adjustable bolt can finely tune mould shaping runner, and adjustable shaping runner is conveniently adjusted in last position, can not appear influencing product production quality because of mould quality problems itself.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

fig. 2 is a left side view of the support ring of the present invention.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a polyvinyl chloride PVC feed pipe mould, includes casing 1 and dabber 2, its characterized in that: a flow channel inlet 3 is fixedly arranged at one end of the shell 1, the flow channel inlet 3 is fixedly connected with an annular flow channel 4 arranged in the shell 1, the annular flow channel 4 penetrates through two ends of the shell 1 to divide the shell into an outer shell 11 and an inner shell 12, a shunt sharp corner 13 is fixedly arranged at one end of the inner shell 12 close to the flow channel inlet 3, the annular flow channel 4 comprises a shunt flow channel 41 and a forming flow channel 42, an axial hole is fixedly arranged at the axial center of the inner shell 12, a mandrel (2) is fixedly arranged in the axial hole, a rear cover plate 5 is fixedly arranged at one end of the mandrel (2) far away from the flow channel inlet 3 by using a screw, a heating resistor 6 is fixedly arranged between the outer ring surface of the mandrel (2) and the inner shell 12, a heating resistor 6 is also fixedly arranged at the outer ring surface of the outer shell 11, the outer shell 11 comprises a first outer shell 111, a second outer shell 112 and a third outer shell 113, a fourth outer shell 114, a fifth outer shell 115, a sixth outer shell 116 and a seventh outer shell 117, wherein the flow passage inlet 3 is opened at one end of the first outer shell 111, the second outer shell 112 is fixedly installed at one end of the first outer shell 111 far away from the flow passage inlet 3 by using screws, the third outer shell 113 is fixedly installed at one end of the second outer shell 112 far away from the first outer shell 111 by using screws, the fourth outer shell 114 is fixedly installed at one end of the third outer shell 113 far away from the second outer shell 112 by using screws, the fifth outer shell 115 is fixedly installed at one end of the fourth outer shell 114 far away from the fourth outer shell 114 by using screws, the sixth outer shell 116 is fixedly installed at one end of the sixth outer shell 116 far away from the fifth outer shell 115 by using screws, the support ring 7 is fixedly installed between the third outer shell 113 and the fourth outer shell 114, the inner shell 12 includes a first inner shell 121, a second inner shell 122, a third inner shell 123, a fourth inner shell 124, a fifth inner shell 125, the one end of the first inner shell 121 is fixed and the conical shunting sharp corner 13 is set up, the one end fixedly connected with second inner shell 122 of shunting sharp corner 13 is kept away from to the first inner shell 121, the one end fixedly connected with third inner shell 123 of the first inner shell 121 is kept away from to the second inner shell 122, the one end fixedly mounted that the second inner shell 122 is kept away from to the third inner shell 123 has the fourth inner shell 124, the one end fixedly mounted that the third inner shell 123 is kept away from to the fourth inner shell 124 has the fifth inner shell 125, fixedly connected with support ring 7 between the second inner shell 122 and the third inner shell 123.

In this embodiment: the flow distribution channel 41 is a gourd-shaped curved surface radian channel, the angle of the sharp corner of the flow distribution sharp corner 13 is 20-30 degrees, the connection surfaces of the first outer shell 111 and the second outer shell 112, and the second outer shell 112 and the third outer shell 113 are provided with R-angle radian surfaces, the innermost side of a seam formed by the connection surfaces is perpendicular to the outer arc surface of the channel, a diamond material passing hole 71 for passing materials is formed at the contact part of the side end surface of the support ring 7 and the flow distribution channel 41, a fine adjustment threaded hole is fixedly formed at the connection part of the outer annular surface of the sixth outer shell 116 and the seventh outer shell 117, and a fine adjustment screw is screwed into the fine adjustment threaded hole.

Wherein the curved surface radian flow channel and the shunting sharp corner reduce the material flow resistance, the change of the connecting gap between the shells also reduces the probability of hanging materials, the service life of the die body is prolonged,

in this embodiment: the splicing mode of the expansion sleeve 1 and the torpedo tip 2 of the expansion part is redesigned, the plane connection of the splicing part is changed into the conical surface connection, and the strength and the tightness of the connecting part are improved.

In this embodiment: the back oral mucosa 11 is two kinds for 1200PVC feed pipe moulds and 1000PVC feed pipe moulds, when needing to make the PVC feed pipe of 1200 models, uses 1200PVC feed pipe moulds, when the PVC feed pipe of 1000 models needs to be made, uses 1000PVC feed pipe moulds.

The working principle is as follows: PVC raw materials plasticized by the extruder screw enter the shunting flow channel and enter the molding flow channel through shunting of the shunting sharp corner, and the heating resistors inside and outside the die in the whole process continuously heat the die, so that the material is prevented from hardening and being incapable of forming a finished product.

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. Also, 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

1. The utility model provides a polyvinyl chloride PVC feed pipe mould, includes casing (1) and dabber (2), its characterized in that: a flow channel inlet (3) is fixedly formed in one end of the shell (1), the flow channel inlet (3) is fixedly connected with an annular flow channel (4) formed in the shell (1), the annular flow channel (4) penetrates through two ends of the shell (1) to divide the shell into an outer shell (11) and an inner shell (12), a shunt sharp corner (13) is fixedly formed in one end, close to the flow channel inlet (3), of the inner shell (12), the annular flow channel (4) comprises a shunt flow channel (41) and a forming flow channel (42), an axial hole is fixedly formed in the axial position of the inner shell (12), a mandrel (2) is fixedly installed in the axial hole, a rear cover plate (5) is fixedly installed at one end, far away from the flow channel inlet (3), of the mandrel (2) through screws, a heating resistor (6) is fixedly installed between the outer ring surface of the mandrel (2) and the inner shell (12), and a heating resistor (6) is also fixedly installed on the outer ring surface of the outer shell (11), the outer shell (11) comprises a first outer shell (111), a second outer shell (112), a third outer shell (113), a fourth outer shell (114), a fifth outer shell (115), a sixth outer shell (116) and a seventh outer shell (117), wherein the runner inlet (3) is formed in one end of the first outer shell (111), the second outer shell (112) is fixedly installed at one end, away from the runner inlet (3), of the first outer shell (111) through screws, the third outer shell (113) is fixedly installed at one end, away from the first outer shell (111), of the second outer shell (112), the fourth outer shell (114) is fixedly installed at one end, away from the second outer shell (112), of the third outer shell (113), the fifth outer shell (115) is fixedly installed at one end, away from the fourth outer shell (114), of the fifth outer shell (115), and the sixth outer shell (116) is fixedly installed at one end, away from the fourth outer shell (114), a seventh outer shell (117) is fixedly installed at one end, far away from the fifth outer shell (115), of the sixth outer shell (116), a support ring (7) is fixedly installed between the third outer shell (113) and the fourth outer shell (114), the inner shell (12) comprises a first inner shell (121), a second inner shell (122), a third inner shell (123), a fourth inner shell (124) and a fifth inner shell (125), a conical shunting sharp corner (13) is fixedly arranged at one end of the first inner shell (121), the end, far away from the shunting sharp corner (13), of the first inner shell (121) is fixedly connected with the second inner shell (122), the end, far away from the first inner shell (121), of the second inner shell (122) is fixedly connected with the third inner shell (123), a fourth inner shell (124) is fixedly installed at one end, far away from the second inner shell (122), of the fourth inner shell (124) is fixedly installed with the fifth inner shell (125), a support ring (7) is fixedly connected between the second inner shell (122) and the third inner shell (123), the flow distribution channel (41) is a gourd-shaped curved surface radian channel, and the angle of the sharp corner of the flow distribution sharp corner (13) is 20-30 degrees.

2. The polyvinyl chloride (PVC) water supply pipe mold as claimed in claim 1, wherein: the connecting surfaces of the first outer shell (111) and the second outer shell (112) and the third outer shell (113) are arc surfaces with an R angle, and the innermost side of a seam formed by the connecting surfaces is perpendicular to the outer arc surface of the flow channel.

3. The polyvinyl chloride (PVC) water supply pipe mold as claimed in claim 1, wherein: and a rhombic material passing hole (71) for passing materials is formed in the contact position of the side end surface of the support ring (7) and the flow dividing runner (41).

4. The polyvinyl chloride (PVC) water supply pipe mold as claimed in claim 1, wherein: and a fine adjustment threaded hole is fixedly formed in the joint of the outer ring surfaces of the sixth shell body (116) and the seventh shell body (117), and a fine adjustment screw is screwed into the fine adjustment threaded hole.