CN211137988U

CN211137988U - Rubber pad bush injection mold structure

Info

Publication number: CN211137988U
Application number: CN201921878130.XU
Authority: CN
Inventors: 汪家文; 程贤安; 朱飞舟
Original assignee: Ningguo Tianhai Mould Manufacturing Co ltd
Current assignee: Ningguo Tianhai Mould Manufacturing Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-31
Anticipated expiration: 2029-11-01

Abstract

The utility model belongs to the technical field of the processing mould, concretely relates to rubber pad bush injection mould structure, including lower bolster, well template, cope match-plate pattern and runner plate, the central point of runner plate puts and is equipped with the sprue, the lower extreme of sprue is connected with four reposition of redundant personnel pipelines, reposition of redundant personnel pipeline along the circumference of sprue evenly spaced arrangement, the tip of reposition of redundant personnel pipeline still is connected with secondary reposition of redundant personnel pipeline, secondary reposition of redundant personnel pipeline be connected to the die cavity via the conduction pipeline; the main flow channel and the branch flow channels, and the branch flow channels and the secondary branch flow channels are connected in a smooth structure; the rubber pad bushing injection mold structure provided by the utility model improves the traditional rolling flow channel structure into a smooth flow channel structure, so that the dead rubber burning condition is obviously improved; and the improvement effectively avoids the waste of sizing materials, reduces the production cost, reduces the labor intensity and improves the production efficiency.

Description

Rubber pad bush injection mold structure

Technical Field

The utility model belongs to the technical field of the mold processing, concretely relates to rubber pad bush injection mold structure.

Background

Traditional injection bush structure all is the stirring structure, all has certain weak point in each link of mould application, and is specific: 1. in the design and processing of the former-stage mold, the rubber material is considered to be rolled in a runner after being injected, namely the rubber material is turned down in the runner and then flows through a rubber injection hole to be injected into a cavity, so that the control on time is difficult, and the phenomenon of early rubber burning of dead rubber occurs slowly; 2. in the production process, as the temperature of the runner plate is consistent with that of the mold after the product with the structure is vulcanized, the glue burning phenomenon can occur when the glue is not injected into the cavity in time, the glue burning sign is generated on the product, the product performance is seriously influenced, and the use cost is increased; 3. in the cleaning process of the subsequent process, because the flow channel is large and thick, raw materials are wasted, the waste material of the flow channel is easy to break, and the waste material is thick and back to greatly influence the size of a product, so that the mold structure greatly reduces the production efficiency, increases the production cost and simultaneously reduces the production efficiency.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide a rubber pad bush injection mold structure when guaranteeing product quality, realizes that the overlap is thin, prevents to glue the technological effect who burns.

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

a rubber pad bushing injection mold structure comprises a lower mold plate, a middle mold plate, an upper mold plate and a runner plate, wherein a main runner is arranged at the center of the runner plate, the lower end of the main runner is connected with four diversion pipelines, the diversion pipelines are uniformly arranged at intervals along the circumferential direction of the main runner, the end parts of the diversion pipelines are also connected with secondary diversion pipelines, and the secondary diversion pipelines are connected to a mold cavity through conduction pipelines;

the main runner and the branch runner are connected by a smooth structure, and the branch runner and the secondary branch runner are connected by a smooth structure.

Preferably, a positioning ring and a sprue are further arranged at the center of the runner plate, and the positioning ring is locked and fixed on the runner plate through a bolt and tightly presses and fixes the sprue in the main runner.

Preferably, the secondary flow distribution pipelines are symmetrically distributed on two sides of the flow distribution pipeline.

Preferably, the conducting pipe is in an X shape and is arranged at the end part of the secondary flow dividing pipe for supplying materials to the mold cavities at two sides of the secondary flow dividing pipe.

Compared with the prior art, the utility model discloses following technological effect has:

the rubber pad bushing injection mold structure provided by the utility model improves the traditional rolling flow channel structure into a smooth flow channel structure, so that the dead rubber burning condition is obviously improved; and the improvement effectively avoids the waste of sizing materials, reduces the production cost, reduces the labor intensity and improves the production efficiency.

Other features and advantages of the present invention will be described in detail in the following detailed description.

Drawings

FIG. 1 is a cross-sectional view of a rubber pad bushing injection mold structure provided by the present invention;

FIG. 2 is a schematic view of a runner in a rubber gasket bushing injection mold provided by the present invention;

the reference numbers in the figures illustrate: 10-lower template, 20-middle template, 30-upper template, 40-runner plate, 41-main runner, 42-shunt pipe, 43-secondary shunt pipe, 44-conduction pipe, 45-positioning ring, 46-squirt nozzle and 50-die cavity.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.

It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

With reference to fig. 1 and 2, the present invention provides a rubber gasket bushing injection mold structure, which includes a lower mold plate 10, a middle mold plate 20, an upper mold plate 30 and a runner plate 40, wherein a main flow channel 41 is disposed at a central position of the runner plate 40, the lower end of the main flow channel 41 is connected to four branch flow channels 42, the branch flow channels 42 are uniformly arranged along a circumferential direction of the main flow channel 41 at intervals, the end portions of the branch flow channels 42 are further connected to secondary branch flow channels 43, and the secondary branch flow channels 43 are connected to a mold cavity 50 via a conduction channel 44; the main flow passage 41 and the branch flow passage 42, and the branch flow passage 42 and the secondary branch flow passage 43 are connected in a smooth structure.

The design of the traditional rubber pad bushing injection mold adopts a material turning structure, so that the condition of rubber burning in advance is easily caused. Therefore, the utility model improves the traditional rolling flow passage structure into a smooth flow passage structure, thus obviously improving the burning condition of dead rubber; in addition, through the improvement, the time of the die design and processing stage is shortened, the processing speed is greatly improved, and the processing period is shortened; in the production process, the flash is thin, and the film stripping of the vulcanized product is easy, so that the waste of rubber materials is avoided, the production cost is reduced, the labor intensity is reduced, and the production efficiency is improved; in the subsequent cleaning process, the flash is thin, the subsequent trimming is simple, the cleaning is easy, and the requirement of a customer drawing can be met, so that the production efficiency is effectively improved, the labor intensity is reduced, and the working efficiency is improved.

The utility model discloses in, the central point department of putting of runner plate 40 still is equipped with holding ring 45 and sprue 46, holding ring 45 via bolt locking fastening decide on runner plate 40 and with sprue 46 compress tightly and fix in sprue 41, sprue 41's top is connected to the injection molding machine via sprue 46.

The secondary branch pipes 43 are symmetrically arranged on both sides of the branch pipe 42.

The conducting duct 44 is X-shaped and is arranged at the end of the secondary branch duct 43 for feeding the mould cavity 50 located on both sides of the secondary branch duct 43.

Through the utility model provides a use of this rubber pad bush injection mold structure all has comparatively obvious promotion on processing cost, processing cycle, maneuverability, class production efficiency for traditional mould.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rubber gasket bushing injection mold structure is characterized by comprising a lower mold plate (10), a middle mold plate (20), an upper mold plate (30) and a runner plate (40), wherein a main runner (41) is arranged at the center of the runner plate (40), the lower end of the main runner (41) is connected with four branch flow pipes (42), the branch flow pipes (42) are uniformly arranged at intervals along the circumferential direction of the main runner (41), the end parts of the branch flow pipes (42) are also connected with secondary branch flow pipes (43), and the secondary branch flow pipes (43) are connected to a mold cavity (50) through conduction pipes (44);

the main flow channel (41) is connected with the flow dividing pipeline (42), and the flow dividing pipeline (42) is connected with the secondary flow dividing pipeline (43) in a smooth structure.

2. A rubber gasket bushing injection mold structure as recited in claim 1, wherein a positioning ring (45) and a sprue (46) are further provided at a central position of said runner plate (40), said positioning ring (45) being locked to said runner plate (40) by bolts and pressing and fixing said sprue (46) in said main runner (41).

3. A rubber gasket bushing injection mold structure as recited in claim 1, wherein said secondary flow distribution duct (43) is symmetrically disposed on both sides of said flow distribution duct (42).

4. A rubber gasket bush injection mold structure as set forth in claim 1, wherein said conducting duct (44) is X-shaped, and is provided at an end of said secondary branch duct (43) for feeding the mold cavity (50) on both sides of the secondary branch duct (43).