CN210820710U

CN210820710U - One-to-four injection mold for straight-through PVC ball valve

Info

Publication number: CN210820710U
Application number: CN201920929450.7U
Authority: CN
Inventors: 潘洪锦
Original assignee: Taizhou Huangyan Haijing Plastic Co ltd
Current assignee: Taizhou Huangyan Haijing Plastic Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-06-23
Anticipated expiration: 2029-06-19

Abstract

The utility model provides a four injection mold of through PVC ball valve one belongs to mould technical field. The upper die plate and the lower die plate are combined to form a plurality of forming cavities, a core die assembly which is matched with the forming cavities and used for forming the internal structure of a product is further arranged on the lower die plate, the core die assembly comprises a plurality of core die clamping blocks which are arranged on the lower die plate and movably connected with the lower die plate, a plurality of core die holes which are in one-to-one correspondence with the forming cavities are formed in the core die clamping blocks, and a side core die which is inserted into the forming cavities from the side wall of the forming cavity is arranged in each core die hole. This mould once can a plurality of products of injection moulding, improves production efficiency, even has the lateral part mandrel with the shaping chamber one-to-one on the mandrel fixture block in the mandrel subassembly, can cooperate the inner structure who forms the product, and mandrel fixture block and lower bolster swing joint can make things convenient for the dismantlement and the installation of lateral part mandrel, improves the dismantlement or the installation effectiveness of lateral part mandrel to improve the production efficiency of product.

Description

One-to-four injection mold for straight-through PVC ball valve

Technical Field

The utility model belongs to the technical field of the mould, a four injection mold of straight-through PVC ball valve play is related to.

Background

Ball valve (ballvalve), the piece that opens and shuts (spheroid) is driven by the valve rod, and the valve of rotary motion is made around the ball valve axis, the regulation and the control that also can be used to fluid, wherein have very strong shearing force between its V type core of hard seal V type ball valve and the metal disk seat of build-up welding carbide, specially adapted contains the fibre, medium such as little solid particle, and the multiple-way ball valve not only can nimble control medium's confluence, reposition of redundant personnel, and the switching of flow direction on the pipeline, also can close arbitrary passageway simultaneously and make two other passageways link to each other, this type of valve generally should horizontal installation in the pipeline, the ball valve divide into according to the drive mode: pneumatic ball valve, electronic ball valve, manual ball valve, plastics ball valve are generally through injection moulding, and plastics ball valve often need be used the mandrel with the inner structure of shaping ball valve when moulding plastics, and the mandrel among the traditional art often fixes unable dismantlement on the mould, leads to easily can't changing the mandrel alone when the mandrel damages, and needs the whole change, wastes time and energy and the cost is higher.

In order to overcome the defects of the prior art, people continuously explore and provide various solutions, for example, a Chinese patent discloses an injection mold for assembling and forming a ball valve, and the application number is as follows: (CN201621064689.5), comprising a left mold body and a right mold body which can be matched and can be installed on the base plate at the top of the demoulding mechanism in a left-right sliding way; a half-die cavity of the ball valve which can be closed is arranged on the die closing surface of the left die body and the right die body; the half-mold cavity comprises a plurality of segment cavities for accommodating half valve shells, a semi-cylindrical groove communicated with each segment cavity is arranged below each segment cavity, an arc-shaped bump is arranged in the top edge of each semi-cylindrical groove, a runner groove communicated with each segment cavity is arranged at the top of each segment cavity, and a core column is also arranged in each segment cavity; the base plate is provided with a plurality of lifting columns for the cohesion of the semi-cylindrical grooves on the left die body and the right die body. This scheme has and can assemble sealing washer and ball core in the lump in it when the valve casing is moulded plastics, improves the production efficiency of ball valve greatly to sealing washer and the sealed cooperation of ball core in the valve casing are accurate, can avoid manual assembly ball valve to cause the switch function of ball valve to become invalid because of the operation is not in place, improve advantages such as plastics ball valve yields greatly, but also have the shortcoming of unable independent change when the mandrel damages.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a four injection mold of straight-through PVC ball valve play is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a four injection mold of straight-through PVC ball valve one-out, includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster combination form a plurality of one-tenth die cavity, the lower bolster on still be equipped with become die cavity and match and be used for forming the mandrel subassembly of product inner structure, the mandrel subassembly including set up on the lower bolster and with lower bolster swing joint's a plurality of mandrel fixture block, be equipped with the mandrel hole of a plurality of and one-to-one of one-tenth die cavity on the mandrel fixture block, the downthehole lateral part mandrel that inserts to the one-up intracavity from one-tenth die.

In the first-to-fourth injection mold of the straight-through type PVC ball valve, the core mold component further comprises a lower mold arranged on the lower mold plate, the top of the lower mold and the upper mold plate are combined to form a plurality of forming cavities, the bottom of the forming cavity, which is positioned in the lower mold, is provided with a core mold groove, a bottom core mold inserted into the forming cavity is arranged in the core mold groove, and the core mold clamping block is connected with the lower mold.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the lower template is provided with two core mold clamping blocks capable of reciprocating along a straight line, the two core mold clamping blocks are symmetrically arranged along the central line of the lower template, and the core mold clamping blocks are positioned at two sides of the lower template and movably connected with the lower template.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the lower template is further provided with a plurality of limiting plates, the end parts of the limiting plates are connected with the lower mold, the limiting plates are further combined to form sliding grooves in one-to-one correspondence with the core mold clamping blocks, and the bottoms of the limiting plates are further provided with limiting sliding grooves for limiting the core mold clamping blocks.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the lower template is also provided with the sealing blocks which are movably connected with the sliding grooves and correspond to the core mold clamping blocks one to one, and the end parts of the sealing blocks are connected with one ends of the core mold clamping blocks, which are far away from the lower mold.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the sealing block can reciprocate along the sliding groove and is movably connected with the lower mold, one side, away from the lower mold, of the sealing block is provided with a first inclined step, the upper mold plate is provided with two baffles which correspond to the sealing block one by one and are used for limiting the sealing block, and the baffles are provided with a second inclined step which is matched with the first inclined step.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the upper mold is detachably arranged on the upper mold plate, the bottom of the upper mold is matched with the top of the lower mold to form four molding cavities, and the four molding cavities are linearly distributed.

In the first-to-fourth injection mold of the straight-through type PVC ball valve, the bottoms of the parts, located in the upper section mold, of the four molding cavities are respectively provided with a sprue, the four sprues are linearly distributed, the upper mold plate is also provided with an upper section mold groove, the bottom of the upper section mold groove is provided with a flow distribution plate groove penetrating through the upper mold plate, a flow distribution plate is detachably arranged in the flow distribution plate groove, and the flow distribution plate is communicated with the sprue.

In the first-through-type PVC ball valve four-injection mold, one end of the splitter plate, which is close to the upper section mold, is provided with a feeding groove with a rectangular cross section, the feeding groove penetrates through the splitter plate along the vertical direction, and the feeding groove is communicated with the feeding gate.

In the first-to-fourth injection mold of the straight-through PVC ball valve, the upper mold plate is also provided with a top plate, the top plate is provided with an injection molding opening, and the bottom of the injection molding opening is communicated with one end of the feed chute, which is far away from the sprue.

Compared with the prior art, the utility model has the advantages of:

1. this mould once can a plurality of products of injection moulding, improves production efficiency, even has the lateral part mandrel with the shaping chamber one-to-one on the mandrel fixture block in the mandrel subassembly, can cooperate the inner structure who forms the product, and mandrel fixture block and lower bolster swing joint can make things convenient for the dismantlement and the installation of lateral part mandrel, improves the dismantlement or the installation effectiveness of lateral part mandrel to improve the production efficiency of product.

2. The core mold clamping blocks can reciprocate along a straight line, so that the disassembly and the assembly of the side core mold can be facilitated, and the disassembly or the assembly efficiency of the side core mold can be improved, thereby improving the production efficiency of products.

3. The sliding groove formed by combining the limiting plates can limit the movement track of the core mold clamping block and prevent the core mold clamping block from deviating, and the limiting sliding groove at the bottom of the limiting plate is matched with the core mold clamping block and can limit the core mold clamping block in the vertical direction to prevent the core mold clamping block from falling off.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the overall structure provided by the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is an exploded view in another direction of the present invention;

FIG. 4 is a schematic structural view of an upper die plate;

FIG. 5 is a schematic structural view of the lower template;

fig. 6 is a schematic cross-sectional view of the present invention.

In the figure, an upper template 1, a lower template 2, a molding cavity 3, a core mold assembly 4, a core mold fixture block 5, a core mold hole 6, a side core mold 7, a lower template 8, a core mold groove 9, a bottom core mold 10, a limiting plate 11, a chute 12, a limiting chute 13, a sealing block 14, a first inclined step 15, a baffle 16, a second inclined step 17, an upper template 18, an upper template groove 19, a splitter plate groove 20, a splitter plate 21, a top plate 22, an injection molding opening 23, an injection gate 30 and a feeding groove 40.

Detailed Description

As shown in fig. 3 and 5, the once-through type PVC ball valve four-injection mold comprises an upper mold plate 1 and a lower mold plate 2, wherein the upper mold plate 1 and the lower mold plate 2 are combined to form a plurality of molding cavities 3, the lower mold plate 2 is further provided with a core mold assembly 4 which is matched with the molding cavities 3 and used for forming the internal structure of a product, the core mold assembly 4 comprises a plurality of core mold clamping blocks 5 which are arranged on the lower mold plate 2 and movably connected with the lower mold plate 2, the core mold clamping blocks 5 are provided with a plurality of core mold holes 6 which are in one-to-one correspondence with the molding cavities 3, and the core mold holes 6 are internally provided with side core molds 7 which are inserted into the molding cavities 3 from the side walls of.

In this embodiment, cope match-plate pattern 1 and lower bolster 2 can make up and form a plurality of shaping chambeies 3, make this mould once can a plurality of products of injection moulding, improve production efficiency, even have lateral part mandrel 7 with shaping chamber 3 one-to-one on the mandrel fixture block 5 in the mandrel subassembly 4, can cooperate the inner structure that forms the product, and mandrel fixture block 5 and lower bolster 2 swing joint, can make things convenient for the dismantlement and the installation of lateral part mandrel 7, improve the dismantlement or the installation effectiveness of lateral part mandrel 7, thereby improve the production efficiency of product.

The core mould component 4 further comprises a lower section mould 8 arranged on the lower mould plate 2, the top of the lower section mould 8 is combined with the upper mould plate 1 to form a plurality of forming cavities 3, core mould grooves 9 are formed in the bottoms of the forming cavities 3 positioned in the lower section mould 8, bottom core moulds 10 inserted into the forming cavities 3 are arranged in the core mould grooves 9, and the core mould clamping blocks 5 are connected with the lower section mould 8.

In this embodiment, as shown in fig. 2 and 5, the lower mold 8 is movably connected to the lower mold plate 2, the molding cavity 3 is disposed on the detachable lower mold 8, and can be conveniently maintained and cleaned, so as to improve the working efficiency, the bottom core mold 10 is movably connected to the core mold groove 9, so as to facilitate the detachment and installation of the bottom core mold 10, and improve the detachment or installation efficiency of the bottom core mold 10, thereby improving the production efficiency of the product, and when the core mold fixture block 5 and the lower mold 8 are closely matched in color, the side core mold 7 is just inserted into the molding cavity 3.

Two core mold clamping blocks 5 capable of reciprocating along a straight line are arranged on the lower template 2, the two core mold clamping blocks 5 are symmetrically arranged along the central line of the lower template 2, and the core mold clamping blocks 5 are positioned on two sides of the lower section mold 8 and are movably connected with the lower section mold 8.

In this embodiment, as shown in fig. 2 and 6, the core mold clamping block 5 is externally connected with a driving mechanism (not shown in the figure), the driving mechanism can control the core mold clamping block 5 to reciprocate along a straight line, so as to facilitate the detachment and installation of the side core mold 7, and improve the detachment or installation efficiency of the side core mold 7, thereby improving the production efficiency of the product, and the two core mold clamping blocks 5 can facilitate the insertion of the side core mold 7 into the molding cavity 3, thereby facilitating the detachment and installation of the side core mold 7.

It will be appreciated by those skilled in the art that the drive mechanism may be a cylinder or an air cylinder, with a cylinder being preferred in this embodiment.

The lower template 2 is further provided with a plurality of limiting plates 11, the end portions of the limiting plates 11 are connected with the lower die 8, the limiting plates 11 are further combined to form sliding grooves 12 corresponding to the core die clamping blocks 5 one by one, and the bottoms of the limiting plates 11 are further provided with limiting sliding grooves 13 used for limiting the core die clamping blocks 5.

In this embodiment, as shown in fig. 2 and 5, the sliding groove 12 formed by combining the plurality of limiting plates 11 can limit the movement track of the core mold clamping block 5 to prevent the core mold clamping block 5 from deviating, and the limiting sliding groove 13 at the bottom of the limiting plate 11 is matched with the core mold clamping block 5 to limit the core mold clamping block 5 in the vertical direction to prevent the core mold clamping block 5 from falling off.

The lower template 2 is also provided with sealing blocks 14 which are movably connected with the sliding grooves 12 and correspond to the core mold clamping blocks 5 one by one, and the end parts of the sealing blocks 14 are connected with one ends of the core mold clamping blocks 5 far away from the lower section mold 8.

In this embodiment, as shown in fig. 2 and fig. 6, the sealing block 14 can fix the core mold clamping block 5 when the product is injection molded, and seal the molding cavity 3 to prevent the injection molding liquid from flowing out, the sealing block 14 and the sliding groove 12 are movably connected to be conveniently sealed without affecting the detachment of the core mold clamping block 5, and the sealing block 14 and the core mold clamping block 5 are connected by bolts to be conveniently detached.

The sealing block 14 can reciprocate along the sliding groove 12, the sealing block 14 is movably connected with the lower section die 8, one side, away from the lower section die 8, of the sealing block 14 is provided with a first inclined step 15, the upper die plate 1 is provided with two baffle plates 16 which correspond to the sealing block 14 one by one and are used for limiting the sealing block 14, and the baffle plates 16 are provided with a second inclined step 17 matched with the first inclined step 15.

In this embodiment, as shown in fig. 2, 3 and 6, the baffle 16 on the upper mold plate 1 can block the seal block 14 when the mold is closed, and the core mold fixture block 5 is tightly fitted with the lower mold 8, so as to prevent the core mold fixture block 5 from being pressed to move towards the seal block 14 during injection molding, so that the injection molding liquid overflows, and the molding quality is affected, and the first inclined step 15 and the second inclined step 17 can prevent the baffle 16 from being blocked with the seal block 14 when the mold is closed.

An upper section mould 18 is detachably arranged on the upper template 1, the bottom of the upper section mould 18 is matched with the top of the lower section mould 8 to form four forming cavities 3, and the four forming cavities 3 are linearly distributed.

In this embodiment, as shown in fig. 3, the detachable upper die 18 can be conveniently maintained and cleaned, so that the work efficiency is improved, and the four molding cavities 3 formed by matching the bottom of the upper die 18 and the top of the lower die 8 are linearly distributed, so that the side core dies 7 can be conveniently inserted from two sides of the molding cavities 3, and the operation is convenient.

The bottom of the inner part of the four molding cavities 3 in the upper mold 18 is provided with a sprue 30, the four sprue 30 are distributed linearly, the upper mold plate 1 is also provided with an upper mold groove 19, the bottom of the upper mold groove 19 is provided with a splitter plate groove 20 penetrating through the upper mold plate 1, a splitter plate 21 is detachably arranged in the splitter plate groove 20, and the splitter plate 21 is communicated with the sprue 30.

In this embodiment, as shown in fig. 3 and fig. 6, the four gates 30 are linearly distributed to facilitate the communication of the splitter plate 21, so that the injection molding liquid in the splitter plate 21 can uniformly flow into the four molding cavities 3.

A feed groove 40 with a rectangular cross section is arranged at one end of the splitter plate 21 close to the upper die 18, the feed groove 40 penetrates through the splitter plate 21 along the vertical direction, and the feed groove 40 is communicated with the inlet gate 30.

In this embodiment, as shown in fig. 3 and fig. 6, the feeding channel 40 with a rectangular cross section is matched with the four inlet gates 30 distributed linearly, so that the injection liquid in the splitter plate 21 can uniformly flow into the four molding cavities 3 through the inlet gates 30.

The upper die plate 1 is further provided with a top plate 22, the top plate 22 is provided with an injection molding opening 23, and the bottom of the injection molding opening 23 is communicated with one end, far away from the gate inlet 30, of the feed chute 40.

In this embodiment, as shown in fig. 1 and 6, the injection port 23 of the top plate 22 is externally connected to a compression molding machine (not shown), and the compression molding machine can inject the injection molding liquid into the feed chute 40 through the injection port 23, thereby improving the injection molding efficiency.

The working principle of the die is that a side core die 7 is installed on a core die hole 6, a bottom core die 10 is installed in a core die groove 9, a core die fixture block 5 is driven by a driving mechanism to move to be tightly attached to a lower die 8, the lower die 8 is completely inserted into a forming cavity 3, an upper die plate 1 is controlled to move towards a lower die plate 2, a second inclined step 17 and a first inclined step 15 on a baffle plate 16 are matched to push a sealing block 14 to move towards the core die fixture block 5 when the upper die plate 1 moves towards the lower die plate 2, the baffle plate 16 just pushes the sealing block 14 to be tightly attached to the core die fixture block 5 and seal the forming cavity 3 when the upper die plate 1 and the lower die plate 2 are tightly attached, the baffle plate 16 can prevent the core die fixture block 5 from being pressed to move towards the sealing block 14 when the core die is injected, so that injection liquid overflows to influence the forming quality, and finally the injection liquid is injected into a feeding groove 40 through an injection molding opening, then flows out from the feeding groove 40, uniformly enters the four molding cavities 3 through the in-gate 30 until the molding cavities 3 are full of the mixture, and is demoulded after the product is cooled.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the upper mold plate 1, the lower mold plate 2, the molding cavity 3, the core mold assembly 4, the core mold block 5, the core mold hole 6, the side core mold 7, the lower mold 8, the core mold groove 9, the bottom core mold 10, the stopper plate 11, the slide groove 12, the stopper slide groove 13, the seal block 14, the first inclined step 15, the stopper plate 16, the second inclined step 17, the upper mold 18, the upper mold groove 19, the flow distribution plate groove 20, the flow distribution plate 21, the top plate 22, the injection opening 23, the gate 30, and the feed groove 40 are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a four injection mold of through formula PVC ball valve one-out, includes cope match-plate pattern (1) and lower bolster (2), its characterized in that, cope match-plate pattern (1) and lower bolster (2) combination form a plurality of one-tenth die cavity (3), lower bolster (2) on still be equipped with become die cavity (3) match and be used for forming core mould subassembly (4) of product inner structure, core mould subassembly (4) including set up on lower bolster (2) and with a plurality of core mould fixture block (5) of lower bolster (2) swing joint, be equipped with core mould hole (6) of a plurality of and one-to-one with one-to-one of one-tenth die cavity (3) on core mould fixture block (5), be equipped with in core mould hole (6) from lateral part (7) that become die cavity (3) lateral wall and insert to one-up die cavity.

2. The straight-through PVC ball valve one-to-four injection mold according to claim 1, wherein the core mold assembly (4) further comprises a lower mold (8) arranged on the lower mold plate (2), the top of the lower mold (8) is combined with the upper mold plate (1) to form a plurality of molding cavities (3), the bottom of the inner part of the molding cavity (3) located in the lower mold (8) is provided with a core mold groove (9), a bottom core mold (10) inserted into the molding cavity (3) is arranged in the core mold groove (9), and the core mold fixture blocks (5) are connected with the lower mold (8).

3. The straight-through PVC ball valve one-to-four injection mold according to claim 2, wherein the lower template (2) is provided with two core mold clamping blocks (5) capable of reciprocating linearly, the two core mold clamping blocks (5) are symmetrically arranged along the center line of the lower template (2), and the core mold clamping blocks (5) are positioned at two sides of the lower mold (8) and movably connected with the lower mold (8).

4. The once-through PVC ball valve and four-injection mold according to claim 3, wherein the lower mold plate (2) is further provided with a plurality of limiting plates (11), the end portions of the limiting plates (11) are connected with the lower mold (8), the limiting plates (11) are further combined to form sliding grooves (12) corresponding to the core mold clamping blocks (5) one by one, and the bottoms of the limiting plates (11) are further provided with limiting sliding grooves (13) for limiting the core mold clamping blocks (5).

5. The straight-through PVC ball valve one-to-four injection mold according to claim 4, characterized in that the lower mold plate (2) is further provided with sealing blocks (14) movably connected with the sliding grooves (12) and corresponding to the core mold clamping blocks (5), and the end parts of the sealing blocks (14) are connected with one ends of the core mold clamping blocks (5) far away from the lower mold (8).

6. A four-injection mould for a straight-through PVC ball valve according to claim 5, wherein the sealing block (14) can reciprocate along the sliding groove (12), the sealing block (14) is movably connected with the lower die (8), one side of the sealing block (14) far away from the lower die (8) is provided with a first inclined step (15), two baffle plates (16) which correspond to the sealing block (14) one by one and are used for limiting the sealing block (14) are arranged on the upper die plate (1), and a second inclined step (17) which is matched with the first inclined step (15) is arranged on the baffle plate (16).

7. A through PVC ball valve one-to-four injection mold according to claim 3, characterized in that the upper mold plate (1) is detachably provided with an upper mold (18), the bottom of the upper mold (18) cooperates with the top of the lower mold (8) to form four molding cavities (3), and the four molding cavities (3) are linearly distributed.

8. A four-in-one injection mold for a straight-through PVC ball valve according to claim 7, wherein the four molding cavities (3) are respectively provided with one inlet gate (30) at the bottom of the inner part of the upper mold (18), the four inlet gates (30) are linearly distributed, the upper mold plate (1) is further provided with an upper mold cavity (19), the bottom of the upper mold cavity (19) is provided with a splitter plate groove (20) penetrating through the upper mold plate (1), a splitter plate (21) is detachably arranged in the splitter plate groove (20), and the splitter plate (21) is communicated with the inlet gates (30).

9. A through PVC ball valve one-to-four injection mold according to claim 8, wherein the splitter plate (21) is provided with a feed channel (40) having a rectangular cross section at one end near the upper die (18), the feed channel (40) penetrates the splitter plate (21) in the vertical direction, and the feed channel (40) is communicated with the gate (30).

10. A four-in-one injection mold for a straight-through PVC ball valve according to claim 9, wherein the top plate (22) is further provided on the upper mold plate (1), the injection port (23) is provided on the top plate (22), and the bottom of the injection port (23) is communicated with one end of the feed chute (40) far away from the gate (30).