CN216941618U - Split type side core-pulling injection mold for injection molding of water pipe joint - Google Patents

Split type side core-pulling injection mold for injection molding of water pipe joint Download PDF

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Publication number
CN216941618U
CN216941618U CN202220005335.2U CN202220005335U CN216941618U CN 216941618 U CN216941618 U CN 216941618U CN 202220005335 U CN202220005335 U CN 202220005335U CN 216941618 U CN216941618 U CN 216941618U
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core
pulling
side core
water pipe
sliding block
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傅智荣
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Kunshan Ruoyite Molding Technology Co ltd
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Kunshan Ruoyite Molding Technology Co ltd
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Abstract

The utility model discloses a split type side core-pulling injection mold for injection molding of a water pipe joint, wherein a core of the water pipe joint comprises a first core body and a second core body which are matched with each other, the upper mold is provided with a plurality of groups of side core-pulling demolding mechanisms, each core-pulling demolding mechanism comprises a first side core-pulling structure for extracting the first core body, a second side core-pulling structure for extracting the second core body and a group of opposite sliding groove plates, and the sliding groove plates are fixed on the upper mold; the side of the sliding chute plate is provided with a first sliding chute and a second sliding chute, a first side guide part of the first side core-pulling structure is located in the first sliding chute, and a second side guide part of the second side core-pulling structure is located in the second sliding chute. The upper die is lifted to drive the sliding chute plate to ascend, so that the first side core-pulling structure is driven to pull out the first core body and the second side core-pulling structure is driven to pull out the second core body, split type side core-pulling demoulding of the water pipe joint is realized, interference does not exist in each part in the demoulding process, the structure is simplified, the operation is convenient, and the production rate is high.

Description

Split type side core-pulling injection mold for injection molding of water pipe joint
Technical Field
The utility model belongs to the technical field of injection molds, and particularly relates to a split type side core-pulling injection mold for injection molding of a water pipe joint.
Background
The plastic injection mold is a tool for producing plastic products and has wide application. In the injection molding of plastic products, because certain plastic products are internally provided with concave parts, side grooves, side holes and the like, a mold core needs to be arranged and taken out in a core pulling mode after the plastic products are molded.
In order to increase various properties of plastic products, industrial water pipe joints (also known as elbow joints) need to be integrally injection-molded by using parts which are originally separately molded and assembled, which increases the processing difficulty. For example, in a large-angle plastic elbow, the conventional means is to adopt multi-section type respective molding and then assemble, and the elbow needs to be integrally molded at present, so that a complicated large-angle arc core pulling is designed. In the prior art, after injection molding is finished, when an insert of a mold is drawn out, the insert of the mold interferes with a mold core or an injection molding piece, so that smooth demolding cannot be realized. Such as: 2 side loose cores in the vertical direction are respectively arranged, but the problem of how to pull the side loose cores is difficult; if the pull-out is directly downward, the corner can interfere; if the rotary extraction is carried out, the mouth part can interfere; if the drawing-out is performed while withdrawing, there is interference at the back.
SUMMERY OF THE UTILITY MODEL
The split type side core-pulling injection mold for injection molding of the water pipe joint mainly solves the technical problem that the split type side core-pulling injection mold for injection molding of the water pipe joint is provided, the upper mold is lifted to drive the sliding groove plate to ascend, so that the first side core-pulling structure is driven to pull out the first core body and the second side core-pulling structure is driven to pull out the second core body, split type side core-pulling demolding of the water pipe joint is realized, interference does not exist in all parts in the demolding process, the structure is simple, the operation is convenient, and the production rate is high.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a split type side core-pulling injection mold for injection molding of a water pipe joint, which comprises an upper mold and a lower mold and is characterized in that: the core of the water pipe joint comprises a first core body and a second core body which are matched with each other, the upper die is provided with a plurality of groups of side core-pulling and demolding mechanisms, each core-pulling and demolding mechanism comprises a first side core-pulling structure for extracting the first core body, a second side core-pulling structure for extracting the second core body and a group of opposite sliding groove plates, the sliding groove plates are fixed on the upper die, and the first side core-pulling structure and the second side core-pulling structure are positioned between the two sliding groove plates;
a first sliding groove and a second sliding groove are formed in the side face of the sliding groove plate, a first side guide piece of the first side core-pulling structure is located in the first sliding groove, a second side guide piece of the second side core-pulling structure is located in the second sliding groove, and the first side guide piece is driven to move along the first sliding groove by the ascending of the sliding groove plate so as to drive the first side core-pulling structure to extract the first core; meanwhile, the second side guide piece is driven to move along the second sliding groove through the ascending of the sliding groove plate, so that the second side core-pulling structure is driven to extract the second core body, and the side core-pulling demoulding of the water pipe joint is realized.
Furthermore, the first side core pulling structure comprises a first sliding block, a first guide rail and a first limiting seat, the tail of the first core body is fixedly connected with the first sliding block, and the first sliding block can move horizontally along the first guide rail and limit the moving distance of the first sliding block through the first limiting seat.
Furthermore, the second side core pulling structure comprises a second sliding block, a second guide rail and a second limiting seat, the tail of the second core body is fixedly connected with the second sliding block, and the second sliding block can translate along the second guide rail and limit the translation distance of the second sliding block through the second limiting seat.
Further, the second sliding block is an L-shaped block, the L-shaped block is provided with a through hole extending horizontally, and the end of the first core body can penetrate through the through hole.
Furthermore, the first limiting seat is mounted on the second sliding block, a first limiting groove is formed in the upper surface of the second sliding block, a first limiting column is fixed on the first sliding block, the first limiting column can slide along the first limiting groove, and the translation distance of the first sliding block is limited through the matching of the first limiting column and the first limiting seat;
the second limiting seat is installed on the second guide rail, a second limiting groove is formed in the upper surface of the second guide rail, a second limiting column is fixed on the second sliding block, the second limiting column can slide along the second limiting groove, and the translation distance of the second sliding block is limited through the matching of the second limiting column and the second limiting seat.
Further, the first side guide and the second side guide are rollers.
Further, the first side guide is installed at two opposite sides of the first sliding block; the second side guide is installed at opposite sides of the second slider.
Furthermore, a bottom surface guide piece is arranged at the bottom of the second sliding block, a bottom surface sliding groove matched with the bottom surface guide piece is formed in the upper surface of the second guide rail, and the starting section of the bottom surface sliding groove is an arc-shaped guide section.
Further, the bottom surface sliding grooves are provided with two, and the bottom surface guide pieces are also provided with two.
Further, the length of the straight section of the second chute is equal to the distance that the second core moves after the first core.
The beneficial effects of the utility model are:
the core-pulling and demolding device comprises an upper die and a lower die, wherein the upper die is provided with a plurality of groups of side core-pulling and demolding mechanisms, each core-pulling and demolding mechanism comprises a first side core-pulling structure for extracting a first core body, a second side core-pulling structure for extracting a second core body and a group of opposite sliding groove plates, and the sliding groove plates are fixed on the upper die; the side surface of the sliding chute plate is provided with a first sliding chute and a second sliding chute, a first side guide piece of the first side core-pulling structure is positioned in the first sliding chute, and a second side guide piece of the second side core-pulling structure is positioned in the second sliding chute, so that the sliding chute plate is driven to ascend by lifting the upper die, the first side core-pulling structure is driven to pull out the first core and the second side core-pulling structure is driven to pull out the second core, and split type side core-pulling demoulding of the water pipe joint is realized;
in addition, the bottom surface guide piece is arranged at the bottom of the second sliding block, the upper surface of the second guide rail is provided with the bottom surface sliding groove matched with the bottom surface guide piece, and the starting section of the bottom surface sliding groove is an arc-shaped guide section, so that the two core bodies are in arc-shaped track stripping when core pulling is started and are matched with the bent part of the water pipe joint, the stripping process is smoother, and interference is avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a schematic structural view of the present invention (with one set of runner plates not installed to show the internal structure);
FIG. 3 is one of the schematic structural diagrams of the one-side core-pulling and demolding mechanism of the present invention;
FIG. 4 is a perspective cross-sectional view of the side core back ejection mechanism of the present invention;
FIG. 5 is a second schematic structural view of the one-side core-pulling and demolding mechanism of the present invention (to show the internal structure, one set of the slide plates is not installed);
FIG. 6 is a schematic view of the structure at the chute plate of the present invention;
FIG. 7 is a side view at the runner plate of the present invention;
FIG. 8 is a schematic view of the present invention at a second rail;
FIG. 9 is a top view at the second rail of the present invention;
the parts in the drawings are marked as follows:
a water pipe joint 100;
an upper die 1;
a lower die 2;
a first core 3;
a second core 4;
the side core-pulling demolding mechanism comprises a side core-pulling demolding mechanism 5, a first side core-pulling structure 51, a first side guide piece 511, a first sliding block 512, a first limiting column 5121, a first guide rail 513, a first limiting seat 514, a second side core-pulling structure 52, a second side guide piece 521, a second sliding block 522, a through hole 5221, a first limiting groove 5222, a second limiting column 5223, a bottom surface guide piece 5224, a second guide rail 523, a second limiting groove 5231, a bottom surface sliding groove 5232, a second limiting seat 524, a sliding groove plate 53, a first sliding groove 531 and a second sliding groove 532.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The utility model may be embodied in other different forms, and different modifications and variations may be made without departing from the scope of the disclosure.
The embodiment is as follows: a split type side core-pulling injection mold for injection molding of a water pipe joint is shown in figures 1 to 9 and comprises an upper mold 1 and a lower mold 2, wherein a core of the water pipe joint comprises a first core body 3 and a second core body 4 which are matched with each other, the upper mold is provided with a plurality of groups of side core-pulling and demolding mechanisms 5, each core-pulling and demolding mechanism comprises a first side core-pulling structure 51 for extracting the first core body, a second side core-pulling structure 52 for extracting the second core body and a group of opposite sliding groove plates 53, the sliding groove plates are fixed on the upper mold, and the first side core-pulling structure and the second side core-pulling structure are positioned between the two sliding groove plates;
a first sliding groove 531 and a second sliding groove 532 are arranged on the side surface of the sliding chute plate, a first side guide piece 511 of the first side core-pulling structure is located in the first sliding groove, a second side guide piece 521 of the second side core-pulling structure is located in the second sliding groove, and the first side guide piece is driven to move along the first sliding groove by the ascending of the sliding chute plate so as to drive the first side core-pulling structure to extract the first core; meanwhile, the second side guide piece is driven to move along the second sliding groove through the ascending of the sliding groove plate, so that the second side core-pulling structure is driven to extract the second core body, and the side core-pulling demoulding of the water pipe joint is realized.
In this embodiment, the first side core pulling structure includes a first slider 512, a first guide rail 513, and a first limiting seat 514, the tail of the first core body is fixedly connected to the first slider, and the first slider can translate along the first guide rail and limit the translation distance of the first slider through the first limiting seat.
The second side core pulling structure comprises a second sliding block 522, a second guide rail 523 and a second limiting seat 524, the tail of the second core body is fixedly connected with the second sliding block, and the second sliding block can translate along the second guide rail and limit the translation distance of the second sliding block through the second limiting seat. In this embodiment, the first rail is located on an upper surface of the second slider.
The second slider is an L-shaped block provided with a horizontally extending through-hole 5221 through which an end of the first core can pass.
In this embodiment, the first limiting seat is mounted on the second slider, a first limiting groove 5222 is formed in the upper surface of the second slider, a first limiting post 5121 is fixed to the first slider, the first limiting post can slide along the first limiting groove, and the translation distance of the first slider is limited by the cooperation between the first limiting post and the first limiting seat;
the second limiting seat is mounted on the second guide rail, a second limiting groove 5231 is formed in the upper surface of the second guide rail, a second limiting column 5223 is fixed to the second sliding block, the second limiting column can slide along the second limiting groove, and the translation distance of the second sliding block is limited through the cooperation of the second limiting column and the second limiting seat.
In this embodiment, the first side guide and the second side guide are both rollers.
The first side guide pieces are arranged on two opposite sides of the first sliding block; the second side guide is installed at opposite sides of the second slider.
The bottom of the second slider is provided with a bottom surface guide 5224, the upper surface of the second guide rail is provided with a bottom surface sliding groove 5232 matched with the bottom surface guide, and the starting section of the bottom surface sliding groove is an arc-shaped guide section. The bottom surface guide part is a guide roller.
The bottom surface spout is equipped with two, the bottom surface guide also is equipped with two, improves the stability of the process of loosing core.
The length of the straight section of the second chute is equal to the distance that the second core lags behind the first core.
The water pipe head in this embodiment is 90 elbow pipe head, and this injection mould adopts 1 play 2 of back-to-back to arrange when moulding plastics two water pipe head, and "1 play 2 of back-to-back" indicates that a sprue advances gluey and falls into two subchannel, and a water pipe head is moulded plastics to each subchannel.
Meanwhile, the injection mould is matched with side sprue feeding, material cavity back taper cooling and ejector rod forced ejection.
The working principle and the working process of the utility model are as follows:
the mould lifts up and drives the spout board and rise, and when the height of last mould lifting was less than the length of the straightway of second spout, the second side structure of loosing core can not remove in horizontal plane and vertical face, and only the first side structure of loosing core can move, specifically is: only the first side guide piece moves in the first sliding groove to drive the first sliding block to horizontally move along the first track, so that the first core is driven to be linearly drawn out for a certain distance (the distance is equal to the length of a straight line section of the second sliding groove), and meanwhile, the translation distance of the first sliding block can be limited through the matching of the first limiting column and the first limiting seat in the process;
then, in the process of continuously lifting the upper die, firstly, the bottom surface guide piece of the second slide block moves along the arc-shaped guide section of the bottom surface sliding groove so as to drive the first core body and the second core body to be demolded along the arc track, and then, firstly, the bottom surface guide piece of the second slide block moves along the straight line section of the bottom surface sliding groove so as to drive the first core body and the second core body to be demolded along the straight line track; the split type side core-pulling demoulding of the water pipe joint is realized, interference does not exist in each part of the demoulding process, the structure is simplified, the operation is convenient, and the production efficiency is high.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a water pipe head moulds plastics with split type side injection mould of loosing core, includes mould (1) and lower mould (2), characterized in that: the core of the water pipe joint (100) comprises a first core body (3) and a second core body (4) which are matched with each other, the upper die is provided with a plurality of groups of side core-pulling and demolding mechanisms (5), each core-pulling and demolding mechanism comprises a first side core-pulling structure (51) for extracting the first core body, a second side core-pulling structure (52) for extracting the second core body and a group of opposite sliding groove plates (53), the sliding groove plates are fixed on the upper die, and the first side core-pulling structure and the second side core-pulling structure are located between the two sliding groove plates;
a first sliding groove (531) and a second sliding groove (532) are formed in the side face of the sliding groove plate, a first side guide piece (511) of the first side core-pulling structure is located in the first sliding groove, a second side guide piece (521) of the second side core-pulling structure is located in the second sliding groove, and the first side guide piece is driven to move along the first sliding groove through the ascending of the sliding groove plate so as to drive the first side core-pulling structure to extract the first core; meanwhile, the second side guide piece is driven to move along the second sliding groove through the ascending of the sliding groove plate, so that the second side core-pulling structure is driven to extract the second core body, and the side core-pulling demoulding of the water pipe joint is realized.
2. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 1, characterized in that: the first side core-pulling structure comprises a first sliding block (512), a first guide rail (513) and a first limiting seat (514), the tail portion of the first core body is fixedly connected with the first sliding block, and the first sliding block can move horizontally along the first guide rail and is limited in the moving distance of the first sliding block through the first limiting seat.
3. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 2, characterized in that: the second side core pulling structure comprises a second sliding block (522), a second guide rail (523) and a second limiting seat (524), the tail of the second core body is fixedly connected with the second sliding block, and the second sliding block can move horizontally along the second guide rail and is limited in the moving distance of the second sliding block through the second limiting seat.
4. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 3, characterized in that: the second slider is an L-shaped block provided with a horizontally extending through-hole (5221) through which an end of the first core can pass.
5. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 3, characterized in that: the first limiting seat is mounted on the second sliding block, a first limiting groove (5222) is formed in the upper surface of the second sliding block, a first limiting column (5121) is fixed on the first sliding block, the first limiting column can slide along the first limiting groove, and the translation distance of the first sliding block is limited through the matching of the first limiting column and the first limiting seat;
the second limiting seat is installed on the second guide rail, a second limiting groove (5231) is formed in the upper surface of the second guide rail, a second limiting column (5223) is fixed on the second sliding block, the second limiting column can slide along the second limiting groove, and the translation distance of the second sliding block is limited through the cooperation of the second limiting column and the second limiting seat.
6. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 1, characterized in that: the first side guide and the second side guide are both rollers.
7. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 3, characterized in that: the first side guide pieces are arranged on two opposite sides of the first sliding block; the second side guide is installed at opposite sides of the second slider.
8. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 3, characterized in that: the bottom of the second sliding block is provided with a bottom surface guide piece (5224), the upper surface of the second guide rail is arranged on a bottom surface sliding groove (5232) matched with the bottom surface guide piece, and the starting section of the bottom surface sliding groove is a circular arc-shaped guide section.
9. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 8, characterized in that: the bottom surface spout is equipped with two, the bottom surface guide also is equipped with two.
10. The split type side core-pulling injection mold for injection molding of the water pipe joint according to claim 9, characterized in that: the length of the straight section of the second chute is equal to the distance that the second core lags behind the first core.
CN202220005335.2U 2022-01-04 2022-01-04 Split type side core-pulling injection mold for injection molding of water pipe joint Active CN216941618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220005335.2U CN216941618U (en) 2022-01-04 2022-01-04 Split type side core-pulling injection mold for injection molding of water pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220005335.2U CN216941618U (en) 2022-01-04 2022-01-04 Split type side core-pulling injection mold for injection molding of water pipe joint

Publications (1)

Publication Number Publication Date
CN216941618U true CN216941618U (en) 2022-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220005335.2U Active CN216941618U (en) 2022-01-04 2022-01-04 Split type side core-pulling injection mold for injection molding of water pipe joint

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