CN215095243U - Double-runner progressive injection mold - Google Patents

Double-runner progressive injection mold Download PDF

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Publication number
CN215095243U
CN215095243U CN202120490219.XU CN202120490219U CN215095243U CN 215095243 U CN215095243 U CN 215095243U CN 202120490219 U CN202120490219 U CN 202120490219U CN 215095243 U CN215095243 U CN 215095243U
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China
Prior art keywords
runner
die holder
injection mold
template
thimble
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CN202120490219.XU
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Chinese (zh)
Inventor
卜清松
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Ningbo Mingzhi Mould Co ltd
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Ningbo Mingzhi Mould Co ltd
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Abstract

The utility model discloses a double-runner progressive injection mold, which comprises a front template, a runner auxiliary plate, a front mold base, a rear mold base and a rear template, wherein the runner auxiliary plate is arranged between the front template and the front mold base, and cushion blocks are arranged between the rear template and two sides of the rear template; the front die holder is overlapped with the rear die holder; guide posts are arranged among the four corners of the front template, the flow passage auxiliary plate and the front die holder, guide sleeves are arranged among the four corners of the rear die holder, and the front ends of the guide posts are arranged in the guide sleeves; a top rod hole is formed in the middle of the rear template; the front die plate is provided with a sprue bush, the middle position of the runner auxiliary plate is provided with a main runner, the front die base is internally provided with a branch runner and a branch runner, a forming cavity is arranged between the front die base and the rear die base, and the sprue bush, the main runner, the branch runner and the forming cavity are sequentially communicated. The utility model can realize the accurate mold closing and demolding operation of the injection mold through the matching of the guide pillar and the guide sleeve; greatly improving the preparation efficiency of plastic parts.

Description

Double-runner progressive injection mold
Technical Field
The utility model relates to an injection mold, in particular to double fluid channel upgrades formula injection mold.
Background
Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. Stirring the completely molten plastic material by a screw at a certain temperature, injecting the plastic material into a mold cavity by high pressure, and cooling and solidifying to obtain a molded product. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods. The existing injection molding does not have a double-flow-passage structure, the mold closing and demolding precision is poor, and the preparation efficiency of plastic parts is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems in the prior art, thereby providing a thimble bottom plate which can quickly eject the plastic parts in the molding cavity through the thimble; the injection mold is subjected to precise mold closing and demolding operation through the matching of the guide pillar and the guide sleeve; the double-runner progressive injection mold greatly improves the preparation efficiency of plastic products.
The above technical problem of the present invention can be solved by the following technical solutions:
a double-runner progressive injection mold comprises a front template, a runner auxiliary plate, a front mold base, a rear mold base and a rear template, wherein the runner auxiliary plate is arranged between the front template and the front mold base, and cushion blocks are arranged between the rear mold base and two sides of the rear template; the front die holder is overlapped with the rear die holder; guide posts are arranged among the four corners of the front template, the flow passage auxiliary plate and the front die holder, guide sleeves are arranged among the four corners of the rear die holder, and the front ends of the guide posts are arranged in the guide sleeves; a top rod hole is formed in the middle of the rear template; a sprue bush is arranged on the front template, a main runner is arranged in the middle of the runner auxiliary plate, a sub-runner and a branch runner are arranged inside the front die holder, a forming cavity is arranged between the front die holder and the rear die holder, and the sprue bush, the main runner, the sub-runner, the branch runner and the forming cavity are sequentially communicated; one end of the branch flow channel is connected with the side end of the branch flow channel, and the other end of the branch flow channel is communicated with the forming cavity; the rear die plate is provided with a thimble bottom plate, the thimble bottom plate is provided with a plurality of thimbles, the top ends of the thimbles penetrate through the rear die base, and the top end parts of the thimbles are installed in the forming cavity.
Furthermore, a thimble panel is arranged on the thimble base plate, and the root of the thimble is arranged on the thimble panel.
Furthermore, four corners of the thimble bottom plate are provided with a blowing-up top-outlet pipe, and the top end part of the blowing-up top-outlet pipe is arranged in the forming cavity; an inner fixing rod is arranged at the root part of the blown-up ejector tube and is installed on the ejector pin bottom plate, a fixing block is arranged at the bottom end of the inner fixing rod and is installed at the inner bottom part of the ejector pin bottom plate; the blowing-up ejection tube comprises an ejection needle body, the top surface of the ejection needle body is provided with an air outlet nozzle, the top surface of the air outlet nozzle is of a net structure, and the air outlet nozzle is arranged in the molding cavity; the bottom end of the thimble body is connected with an air inlet pipeline, and the outer end of the air inlet pipeline is provided with an air pump; an air bag is arranged in the middle of the air inlet pipeline; the inside of thimble body is equipped with the air blowing chamber, and the inner of admission line is equipped with out the balloon, and the surface that goes out the balloon is equipped with the protection casing, and the protection casing is installed in the air blowing intracavity.
Furthermore, a first fixing pin is arranged between the rear die holder and the top end of the cushion block, and a second fixing pin is arranged between the rear die plate and the bottom end of the cushion block; the inner circumferential surface of the ejector rod hole is provided with a guide sleeve; a first insert is arranged in the front die holder, a second insert is arranged in the rear die holder, and the molding cavity is arranged between the first insert and the second insert; a fixing plate is arranged between the roots of the thimbles and is installed inside the thimble panel.
By adopting the double-runner progressive injection mold of the technical scheme, the injection mold is arranged on an injection molding machine, the injection molding machine injects molten plastic materials into the main runner, the sub-runner, the branch runner and the molding cavity through the sprue bush, and the molten plastic materials are cooled and molded; the main runner is used for shunting and injecting the molten plastic through the sub-runners and the branch runners, so that the molding cavity can be quickly filled with the molten plastic, a top roller of the injection molding machine penetrates through a top roller hole to eject the top pin bottom plate forwards, and the top pin bottom plate is used for quickly ejecting a plastic workpiece in the molding cavity through a top pin; the injection mold is subjected to precise mold closing and demolding operation through the matching of the guide pillar and the guide sleeve; greatly improving the preparation efficiency of plastic parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 creative efforts.
Fig. 1 is the structural schematic diagram of the double-runner progressive injection mold of the present invention.
Fig. 2 is a schematic structural view of the thimble of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1 and 2, a dual-runner progressive injection mold comprises a front mold plate 1, a runner auxiliary plate 2, a front mold base 3, a rear mold base 4 and a rear mold plate 5, wherein the runner auxiliary plate 2 is installed between the front mold plate 1 and the front mold base 3, and cushion blocks 6 are arranged between the rear mold base 4 and two sides of the rear mold plate 5; the front die holder 3 is superposed with the rear die holder 4; guide posts 15 are arranged among the four corners of the front template 1, the flow passage auxiliary plate 2 and the front die holder 3, guide sleeves 8 are arranged among the four corners of the rear die holder 4, and the front ends of the guide posts 15 are arranged in the guide sleeves 8; a top rod hole 7 is arranged in the middle of the rear template 5; a sprue bush 9 is arranged on the front template 1, a main runner 10 is arranged in the middle of the runner auxiliary plate 2, a sub-runner 11 and a branch runner 12 are arranged inside the front die holder 3, a forming cavity 13 is arranged between the front die holder 3 and the rear die holder 4, and the sprue bush 9, the main runner 10, the sub-runner 11, the branch runner 12 and the forming cavity 13 are sequentially communicated; one end of the branch flow passage 12 is connected with the side end of the branch flow passage 11, and the other end of the branch flow passage 12 is communicated with the molding cavity 13; the rear template 5 is provided with a thimble bottom plate 22, the thimble bottom plate 22 is provided with a plurality of thimbles 14, the top ends of the thimbles 14 penetrate through the rear die holder 4, and the top end parts of the thimbles 14 are arranged in the forming cavity 13.
The utility model discloses double-runner progressive injection mold installs this injection mold on the injection molding machine, and the injection molding machine injects the molten plastic material into main runner 10, branch runner 11, branch runner 12 and shaping cavity 13 through sprue bush 9, and the molten plastic material is cooled and shaped; the main runner 10 performs split injection on the molten plastic through the sub-runners 11 and 12, so that the molding cavity 13 can be quickly filled with the molten plastic, a top stick of an injection molding machine penetrates through a top stick hole 7 to eject a top needle bottom plate 22 forwards, and the top needle bottom plate 22 quickly ejects plastic parts in the molding cavity 13 through a top needle 14; the injection mold is precisely matched with a mold and demolded through the matching of the guide post 15 and the guide sleeve 8; greatly improving the preparation efficiency of plastic parts.
Preferably, the thimble base plate 22 is provided with a thimble panel 21, and the root of the thimble 23 is mounted on the thimble panel 21; the root of the thimble 23 is firmly attached to the thimble panel 21 by the thimble panel 21.
Preferably, four corners of the ejector pin base plate 22 are provided with a blowing ejector tube 24, and the top end of the blowing ejector tube 24 is installed in the molding cavity 13; an inner fixing rod 25 is arranged at the root part of the blowing-up ejector tube 24, the inner fixing rod 25 is installed on the ejector pin bottom plate 22, a fixing block 26 is arranged at the bottom end of the inner fixing rod 25, and the fixing block 26 is installed at the inner bottom part of the ejector pin bottom plate 22; the blowing ejector tube 24 is fixedly mounted on the ejector pin base plate 22 through an inner fixing rod 25 and a fixing block 26.
Preferably, the blow-up ejection tube 24 comprises an ejector pin body 28, the top surface of the ejector pin body 28 is provided with an air outlet nozzle 29, the top surface of the air outlet nozzle 29 is of a net structure, and the air outlet nozzle 29 is installed in the molding cavity 13; the bottom end of the top needle body 28 is connected with an air inlet pipeline 33, and the outer end of the air inlet pipeline 33 is provided with an air pump 34; an air bag 35 is arranged in the middle of the air inlet pipeline 33; an air blowing cavity 30 is arranged inside the thimble body 28, an air outlet ball 31 is arranged at the inner end of an air inlet pipeline 33, a protective cover 32 is arranged on the outer surface of the air outlet ball 31, and the protective cover 32 is arranged in the air blowing cavity 30; the air pump 34 blows air into the balloon 31 through the air inlet pipeline 33, the air bag 35 greatly increases the blowing efficiency of the air inlet pipeline 33, the balloon 31 is protected through the protective cover 32, the air is blown out from the air outlet nozzle 29 through the air blowing cavity 30 by the air outlet ball 31, and plastic parts in the forming cavity 13 are blown out quickly through the air outlet nozzle 29.
Preferably, a first fixing pin 19 is arranged between the rear die holder 4 and the top end of the cushion block 6, and a second fixing pin 20 is arranged between the rear die plate 5 and the bottom end of the cushion block 6; the firmness between the rear die holder 4 and the cushion block 6 and between the rear die plate 5 and the cushion block 6 is increased.
Preferably, the inner peripheral surface of the top stick hole 7 is provided with a guide sleeve 18; the ejector rod smoothly reciprocates at the ejector rod hole 7 through the guide sleeve 18.
Preferably, the front die holder 3 is internally provided with a first insert 16, the rear die holder 4 is internally provided with a second insert 17, and the forming cavity 13 is arranged between the first insert 16 and the second insert 17; the cavity 13 is machined by a first insert 16 and a second insert 17.
Preferably, a fixing plate 27 is arranged between the root parts of the thimbles 14, and the fixing plate 27 is installed inside the thimble panel 21; the root of the thimble 14 is firmly attached to the thimble panel 21 by the fixing plate 27.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. A double-runner progressive injection mold comprises a front template, a runner auxiliary plate, a front mold base, a rear mold base and a rear template, wherein the runner auxiliary plate is arranged between the front template and the front mold base, and cushion blocks are arranged between the rear mold base and two sides of the rear template; the front die holder is overlapped with the rear die holder; guide posts are arranged among the four corners of the front template, the flow passage auxiliary plate and the front die holder, guide sleeves are arranged among the four corners of the rear die holder, and the front ends of the guide posts are arranged in the guide sleeves; a top rod hole is formed in the middle of the rear template;
the method is characterized in that: a sprue bush is arranged on the front template, a main runner is arranged in the middle of the runner auxiliary plate, a sub-runner and a branch runner are arranged inside the front die holder, a forming cavity is arranged between the front die holder and the rear die holder, and the sprue bush, the main runner, the sub-runner, the branch runner and the forming cavity are sequentially communicated; one end of the branch flow channel is connected with the side end of the branch flow channel, and the other end of the branch flow channel is communicated with the forming cavity;
the rear die plate is provided with a thimble bottom plate, the thimble bottom plate is provided with a plurality of thimbles, the top ends of the thimbles penetrate through the rear die base, and the top end parts of the thimbles are installed in the forming cavity.
2. The dual-runner progressive injection mold of claim 1, wherein: the thimble bottom plate is provided with a thimble panel, and the root of the thimble is arranged on the thimble panel.
3. The dual-runner progressive injection mold of claim 1, wherein: and four corners of the thimble bottom plate are provided with a blowing-up top outlet pipe, and the top end part of the blowing-up top outlet pipe is arranged in the forming cavity.
4. The dual-runner progressive injection mold of claim 3, wherein: the root of the top outlet pipe is provided with an inner fixing rod, the inner fixing rod is installed on the ejector pin base plate, the bottom end of the inner fixing rod is provided with a fixing block, and the fixing block is installed at the inner bottom of the ejector pin base plate.
5. The dual-runner progressive injection mold of claim 3, wherein: the blowing-up ejection tube comprises an ejection needle body, the top surface of the ejection needle body is provided with an air outlet nozzle, the top surface of the air outlet nozzle is of a net structure, and the air outlet nozzle is arranged in the molding cavity; the bottom end of the thimble body is connected with an air inlet pipeline, and the outer end of the air inlet pipeline is provided with an air pump; an air bag is arranged in the middle of the air inlet pipeline.
6. The dual-runner progressive injection mold of claim 5, wherein: the inside of thimble body is equipped with the air blowing chamber, and the inner of admission line is equipped with out the balloon, and the surface that goes out the balloon is equipped with the protection casing, and the protection casing is installed in the air blowing intracavity.
7. The dual-runner progressive injection mold of claim 1, wherein: a first fixing pin is arranged between the rear die holder and the top end of the cushion block, and a second fixing pin is arranged between the rear die plate and the bottom end of the cushion block.
8. The dual-runner progressive injection mold of claim 1, wherein: the inner peripheral surface of the ejector rod hole is provided with a guide sleeve.
9. The dual-runner progressive injection mold of claim 1, wherein: the inner part of the front die holder is provided with a first insert, the inner part of the rear die holder is provided with a second insert, and the molding cavity is arranged between the first insert and the second insert.
10. The dual-runner progressive injection mold of claim 1, wherein: a fixing plate is arranged between the roots of the thimbles and is installed inside the thimble panel.
CN202120490219.XU 2021-03-08 2021-03-08 Double-runner progressive injection mold Active CN215095243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120490219.XU CN215095243U (en) 2021-03-08 2021-03-08 Double-runner progressive injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120490219.XU CN215095243U (en) 2021-03-08 2021-03-08 Double-runner progressive injection mold

Publications (1)

Publication Number Publication Date
CN215095243U true CN215095243U (en) 2021-12-10

Family

ID=79340603

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120490219.XU Active CN215095243U (en) 2021-03-08 2021-03-08 Double-runner progressive injection mold

Country Status (1)

Country Link
CN (1) CN215095243U (en)

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