CN209955207U

CN209955207U - Runner structure of rubber injection molding machine

Info

Publication number: CN209955207U
Application number: CN201920645729.2U
Authority: CN
Inventors: 黄春方; 阮恩毅
Original assignee: Zhejiang Langshi Plastics Technology Co Ltd
Current assignee: Zhejiang Bailangshi New Materials Co ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-01-17
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a runner structure of a rubber injection molding machine, which can mold a plurality of products at one time and has the characteristics of good molding effect and difficult overflow of sizing material, its technical scheme main points are last runner plate and lower runner plate including coincide from top to bottom, be equipped with the sprue on the upper surface of last runner plate, the sprue includes a plurality of reposition of redundant personnel ends, every reposition of redundant personnel is served and all is equipped with the one-level subchannel, every one-level subchannel all includes the three hole of watering on, be equipped with vice runner on the upper surface of lower runner plate, vice runner includes a plurality of second grade subchannels that are rectangular array and arrange, every second grade subchannel all is X type structure, every of every one-level subchannel is watered the hole and is corresponded the center intercommunication with every second grade subchannel respectively, all be equipped with down the hole of watering on four tip of every second grade subchannel, the utility model is suitable for a rubber forming die technical field.

Description

Runner structure of rubber injection molding machine

Technical Field

The utility model belongs to the technical field of rubber forming die, refer in particular to a runner structure of rubber injection molding machine.

Background

The rubber spare is usually through the mould shaping on the injection moulding machine, but the runner structure of current mould, usually for the individual layer runner board, the product quantity that the single can be shaped is less, if the shaping chamber quantity on the mould is too much, causes the runner structure on the runner board complicated, and single runner length overlength leads to the sizing material to be inhomogeneous at circulation in-process internal pressure easily, and the final shaping precision of every shaping chamber differs, and the shaping effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a runner structure of rubber injection molding machine, it can a plurality of products of one shot forming, and has that the shaping is effectual, the sizing material is difficult for excessive characteristics.

The purpose of the utility model is realized like this: the utility model provides a runner structure of rubber injection molding machine, includes upper runner plate and lower runner plate of coincide from top to bottom which characterized in that: the runner plate is characterized in that a main runner is arranged on the upper surface of the upper runner plate and comprises a plurality of diversion ends, one-level diversion channels are arranged on each diversion end, each one-level diversion channel comprises three upper pouring holes, auxiliary runners are arranged on the upper surface of the lower runner plate and comprise a plurality of secondary diversion channels arranged in a rectangular array, each secondary diversion channel is of an X-shaped structure, each upper pouring hole of each one-level diversion channel corresponds to the center of each secondary diversion channel to be communicated with the center of each secondary diversion channel, and lower pouring holes are arranged in four end portions of each secondary diversion channel.

By adopting the technical scheme, the upper pouring plate is further superposed above the upper runner plate, the upper pouring plate is provided with the pouring gate communicated with the center of the main runner, the rubber material can flow to the first-level sub-runner along the main runner, then flows to the second-level sub-runner from the upper pouring hole on the first-level sub-runner, and finally flows to the forming cavity from the lower pouring hole on the second-level sub-runner, the first-level runner and the second-level sub-runner are uniformly distributed, the runner structure is reasonable in arrangement, a plurality of products can be formed at one time, the forming effect is good, and the pressure is more uniform when the rubber material flows through the double-layer runner structure arrangement of the upper runner plate and the lower runner plate, the rubber material is prevented from overflowing from the superposition gap of the mold, and the forming precision of each.

The utility model discloses further set up to: the upper surface of the lower runner plate is also provided with a sealing convex ring arranged along the peripheral side of the secondary runner, the lower surface of the upper runner plate is also provided with a sealing groove matched with the sealing convex ring, and a flexible graphite gasket is arranged in the sealing groove.

Through adopting above-mentioned technical scheme, sealed bulge loop and lower flow path board structure as an organic whole, the flexible graphite gasket can increase the conflict leakproofness between sealed bulge loop and the sealed recess, can effectively avoid the sizing material to be excessive between flow in-process along lower flow path board and the upper flow path board.

The utility model discloses further set up to: the lower runner plate is also overlapped with a forming plate, the forming plate is provided with a plurality of forming runners with inverted T-shaped structures and a plurality of forming cavities, the upper end of each forming runner is communicated with the lower pouring hole, and two sides of the lower end of each forming runner are communicated with the two forming cavities respectively.

Through adopting above-mentioned technical scheme, through the shaping of the style of calligraphy structure of falling T design of watering structural design for every down pour the hole and can two products of shaping simultaneously, shaping efficiency is higher.

The utility model discloses further set up to: the number of the first-stage branch runners is four, the number of the second-stage branch runners is twelve, and the number of the molding runners is twelve.

By adopting the technical scheme, the number of the forming cavities can be twenty-four, namely twenty-four products can be formed by one die at the same time, the yield is high, the rubber material flows uniformly due to the arrangement mode of the first-level flow channel, the second-level flow channel and the forming runner, and the forming effect of each product is good.

Drawings

FIG. 1 is a schematic structural view of the upper surface of the upper flow field plate of the present invention;

FIG. 2 is a schematic view of the structure of the upper surface of the lower flow field plate of the present invention;

FIG. 3 is a schematic structural view of the lower surface of the upper flow field plate of the present invention;

FIG. 4 is a schematic cross-sectional view of the molding plate of the present invention;

FIG. 5 is a schematic structural view of the upper flow field plate and the lower flow field plate of the present invention after being stacked;

the reference numbers in the figures are: 1. an upper flow passage plate; 2. a lower flow field plate; 3. a main flow channel; 4. a first-stage runner; 5. pouring holes in the mold; 6. a secondary runner; 7. a lower pouring hole; 8. a sealing convex ring; 9. sealing the groove; 10. forming a plate; 11. forming a pouring channel; 12. and forming a cavity.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 5:

a runner structure of a rubber injection molding machine comprises an upper runner plate 1 and a lower runner plate 2 which are overlapped up and down, and is characterized in that: be equipped with sprue 3 on the upper surface of runner plate 1, sprue 3 includes a plurality of reposition of redundant personnel ends, every reposition of redundant personnel is served and all is equipped with one-level runner 4, every one-level runner 4 all includes three upper pouring hole 5, be equipped with vice runner on the upper surface of lower runner plate 2, vice runner includes a plurality of second grade runners 6 that are the rectangular array and arrange, every second grade runner 6 all is X type structure, every upper pouring hole 5 of every one-level runner 4 corresponds respectively with the central intercommunication of every second grade runner 6, all be equipped with down on four tip of every second grade runner 6 and water hole 7.

By adopting the technical scheme, the upper pouring plate is further superposed above the upper runner plate 1, the upper pouring plate is provided with a pouring gate communicated with the center of the main runner 3, the rubber material can flow to the first-stage branch runner 4 along the main runner 3, then flows to the second-stage branch runner 6 from the upper pouring hole 5 on the first-stage branch runner 4, and finally flows to the forming cavity 12 from the lower pouring hole 7 on the second-stage branch runner 6, the first-stage branch runner 4 and the second-stage branch runner 6 are uniformly distributed, the runner structure is reasonable in arrangement, a plurality of products can be formed at one time, the forming effect is good, and the double-layer runner structure arrangement of the upper runner plate 1 and the lower runner plate 2 is adopted, so that the pressure is more uniform when the rubber material flows, the rubber material is prevented from overflowing from the superposition gap of the mold, and the forming precision of each.

The utility model discloses further set up to: still be equipped with the sealed bulge loop 8 that sets up along 6 week sides of second grade subchannel on the upper surface of lower runner plate 2, still be equipped with on the lower surface of up runner plate 1 with the sealed recess 9 of sealed bulge loop 8 adaptation, be equipped with flexible graphite gasket in the sealed recess 9.

Through adopting above-mentioned technical scheme, sealed bulge loop 8 and lower flow board 2 structure as an organic whole, the flexible graphite gasket can increase the conflict leakproofness between sealed bulge loop 8 and the sealed recess 9, can effectively avoid the sizing material to be excessive between flow in-process along lower flow board 2 and upper flow board 1.

The utility model discloses further set up to: the lower portion of the lower runner plate 2 is also overlapped with a forming plate 10, the forming plate 10 is provided with a plurality of forming runners 11 with inverted T-shaped structures and a plurality of forming cavities 12, the upper end of each forming runner 11 is communicated with the lower pouring hole 7, and two sides of the lower end of each forming runner 11 are respectively communicated with the two forming cavities 12.

Through adopting above-mentioned technical scheme, 11 structural design is watered in the shaping through the style of calligraphy of falling T structure for two products of every lower pouring hole 7 ability simultaneous moulding, shaping efficiency is higher.

The utility model discloses further set up to: the number of the first-stage branch runners 4 is four, the number of the second-stage branch runners 6 is twelve, and the number of the molding runners 11 is twelve.

By adopting the technical scheme, the number of the forming cavities 12 can be twenty-four, namely twenty-four products can be formed by one die at the same time, the yield is high, the rubber material flows uniformly due to the arrangement mode of the first-level flow channel 4, the second-level flow channel 6 and the forming runner 11, and the forming effect of each product is good.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A runner structure of a rubber injection molding machine, comprising an upper runner plate (1) and a lower runner plate (2) which are overlapped up and down, characterized in that: go up and be equipped with sprue (3) on the upper surface of runner plate (1), sprue (3) include a plurality of reposition of redundant personnel ends, all be equipped with one-level runner (4) on every reposition of redundant personnel end, every one-level runner (4) all include three upper pouring hole (5), be equipped with vice runner on the upper surface of lower runner plate (2), vice runner includes a plurality of second grade runners (6) that are the rectangular array and arrange, every second grade runner (6) all are X type structure, it corresponds the center intercommunication with every second grade runner (6) respectively to water hole (5) on every of every one-level runner (4), all be equipped with down on four tip of every second grade runner (6) and water hole (7).

2. The runner structure of a rubber injection molding machine according to claim 1, characterized in that: the upper surface of the lower runner plate (2) is also provided with a sealing convex ring (8) arranged along the peripheral side of the secondary runner (6), the lower surface of the upper runner plate (1) is also provided with a sealing groove (9) matched with the sealing convex ring (8), and a flexible graphite gasket is arranged in the sealing groove (9).

3. The runner structure of a rubber injection molding machine according to claim 1, characterized in that: the lower portion of the lower runner plate (2) is further overlapped with a forming plate (10), a plurality of forming runners (11) and a plurality of forming cavities (12) of inverted T-shaped structures are arranged on the forming plate (10), the upper end of each forming runner (11) is communicated with a lower pouring hole (7), and two sides of the lower end of each forming runner (11) are communicated with the two forming cavities (12) respectively.

4. The runner structure of a rubber injection molding machine according to claim 3, characterized in that: the number of the first-stage branch runners (4) is four, the number of the second-stage branch runners (6) is twelve, and the number of the molding pouring gates (11) is twelve.