CN212554638U - Accurate rubber production mould - Google Patents

Abstract

The utility model discloses an accurate rubber production mould, including corresponding last mould, well mould and the lower mould that sets up go up and be equipped with a plurality of positioning guide pillars between mould, well mould and the lower mould, positioning guide pillar can run through last mould, well mould and lower mould in proper order, positioning guide pillar's number is not less than eight go up the surperficial correspondence of the interconnect department of mould, well mould and lower mould and set up many cross arrangement's flash ditch, flash ditch all corresponds and runs through last mould, well mould or lower mould. The utility model relates to an accurate rubber production mould sets up the flash ditch, lets unnecessary sizing material irritate the back full at the finished product, just discharges to outside stream, realizes that the material is not excessive to be detained the product district and influence product size precision.

Description

Accurate rubber production mould

Technical Field

The utility model belongs to the technical field of the industrial production mould and specifically relates to an accurate rubber production mould.

Background

The mould is used for obtaining various moulds and tools of required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother". The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

According to the difference of the formed material, the mold can be divided into a hardware mold, a plastic mold and a special mold thereof, and the non-metal mold is divided into a plastic mold and an inorganic non-metal mold. According to the molding type, the mold can be divided into injection molding molds, which is characterized in that plastic is added into a heating charging barrel of an injection machine, the plastic is heated and melted, and enters a mold cavity through a nozzle and a mold pouring system under the pushing of a screw rod or a plunger of the injection machine, and the plastic is hardened and molded into an injection molding product due to physical and chemical actions. Injection molding has a cyclic cycle consisting of injection, pressure holding (cooling) and plastic part demolding, so that injection molding has the characteristic of periodicity. The thermoplastic plastic injection molding has short molding cycle and high production efficiency, the melt has small abrasion to the mold, and plastic parts with complex shapes, clear surface patterns and marks and high dimensional precision can be molded in large batch; however, for plastic parts with large wall thickness variation, it is difficult to avoid molding defects. The anisotropy of the plastic part is also one of the quality problems, and all possible measures should be adopted to reduce the anisotropy as much as possible.

With the development of modern science and technology, the industrial precision degree is higher and higher, and because the rubber is the particularity of the elastomer industry, the rubber always has larger size shrinkage in the production process. The traditional process is particularly easy to cause dimension deviation due to the gram weight of the input materials, and the process dimension is difficult to control, so that the tolerance of a whole mould product is +/-0.16 mm and the tolerance of a single product is +/-0.10 mm in the traditional rubber production process. Such tolerances have resulted in the monopoly of foreign industries importing germany, austria, japan, and the like, for high-end precision rubber parts. Therefore, a precise rubber production mold needs to be designed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, a precise rubber production mold is provided.

The utility model discloses a following scheme realizes:

the utility model provides a precise rubber production mould, is including corresponding last mould, well mould and the lower mould that sets up be equipped with a plurality of positioning guide pillars between last mould, well mould and the lower mould, positioning guide pillar can run through last mould, well mould and lower mould in proper order, positioning guide pillar's number is not less than eight go up the surface correspondence of the interconnect department of mould, well mould and lower mould and set up many cross arrangement's overflow ditch, overflow ditch all corresponds and runs through last mould, well mould or lower mould.

The lower part of the upper die is correspondingly provided with a plurality of convex grooves protruding outwards, the upper part of the middle die is correspondingly provided with a plurality of concave grooves recessed inwards, the convex grooves are matched with the grooves, the upper part of the middle die is correspondingly provided with a plurality of overflow ditches, the overflow ditches comprise a plurality of transverse overflow ditches arranged transversely and a plurality of longitudinal overflow ditches arranged longitudinally, the transverse overflow ditches arranged transversely are parallel to each other, the longitudinal overflow ditches arranged longitudinally are parallel to each other, and the transverse overflow ditches and the longitudinal overflow ditches are correspondingly crossed.

The transverse overflow grooves are three at equal intervals, the longitudinal overflow grooves are three at equal intervals, and the transverse overflow grooves and the longitudinal overflow grooves are correspondingly and vertically crossed.

The lower part of the upper die is correspondingly provided with four mutually parallel convex grooves with equal intervals, the upper part of the middle die is correspondingly provided with four mutually parallel grooves with equal intervals, the convex grooves are matched with the grooves one by one, each pair of convex grooves and the grooves form a die cavity of a hollow cavity structure in a closed mode, and a plurality of product bulges are correspondingly arranged in the die cavity.

The positioning guide posts are eight and are uniformly distributed.

The utility model has the advantages that:

the utility model relates to an accurate rubber production mould sets up the flash ditch, lets unnecessary sizing material irritate the back full at the finished product, just discharges to outside stream, realizes that the material is not excessive to be detained the product district and influence product size precision.

Drawings

FIG. 1 is a schematic structural view of a precise rubber production mold of the present invention;

fig. 2 is the utility model relates to an accurate rubber production mould go up mould and well mould connection structure sketch map.

In the figure: 1 is an upper die, 2 is a middle die, 3 is a lower die, 4 is a positioning guide post, 5 is a convex groove, 6 is a groove, 7 is a die cavity, 8 is an overflow groove, 81 is a transverse overflow groove, 82 is a longitudinal overflow groove, and 9 is a product bulge.

Detailed Description

The preferred embodiments of the present invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1, a precise rubber production mold comprises an upper mold 1, a middle mold 2 and a lower mold 3 which are correspondingly arranged, wherein a plurality of positioning guide posts 4 are arranged between the upper mold 1, the middle mold 2 and the lower mold 3, the positioning guide posts 4 can sequentially penetrate through the upper mold 1, the middle mold 2 and the lower mold 3, and the number of the positioning guide posts 4 is not less than eight. The application is here, the theory of operation, the process such as material loading are unloaded of rubber production mould are the well-known technique, do not give unnecessary details here.

A plurality of overflow ditches 8 which are arranged in a cross way are correspondingly arranged on the surfaces of the mutual connection parts of the upper die 1, the middle die 2 and the lower die 3, and the overflow ditches 8 correspondingly penetrate through the upper die 1, the middle die 2 or the lower die 3. The application provides a precise rubber production mould locks the product structure firmly, and unnecessary material will flow out outside the product district. Avoiding excessive material accumulation, leading to dimensional changes and run away. The novel production process realizes +/-0.03mm of a whole mould product and +/-0.01mm of tolerance of a single product, and can realize the world advanced rubber precision production process level.

As shown in fig. 2, in this embodiment, a plurality of convex grooves 5 protruding outward are correspondingly formed at the lower part of the upper die 1, a plurality of concave grooves 6 recessed inward are correspondingly formed at the upper part of the middle die 2, the convex grooves 5 are matched with the concave grooves 6, a plurality of overflow channels 8 are correspondingly formed at the upper part of the middle die 2, each overflow channel 8 includes a plurality of transverse overflow channels 81 arranged horizontally and a plurality of longitudinal overflow channels 82 arranged longitudinally, the plurality of transverse overflow channels 81 arranged horizontally are parallel to each other, the plurality of longitudinal overflow channels 82 arranged longitudinally are parallel to each other, and the plurality of transverse overflow channels 81 and the plurality of longitudinal overflow channels 82 are all crossed correspondingly. In practical application, the overflow channels may be disposed at positions where discharging and exhausting are needed, and are not described herein again.

The transverse overflow ditches 81 are three at equal intervals, the longitudinal overflow ditches 82 are three at equal intervals, the transverse overflow ditches 81 and the longitudinal overflow ditches 82 are vertically crossed correspondingly, and after finished products are filled with the excessive sizing materials, the excessive sizing materials flow outwards through the overflow ditches, so that the materials are not excessively retained in a product area to influence the size precision of the products.

Go up the correspondence of the lower part of mould 1 and be equipped with four tongue 5 that are parallel to each other and the interval equals, the correspondence of the upper portion of well mould 2 is equipped with four recess 6 that are parallel to each other and the interval equals, tongue 5 and recess 6 match one by one, every pair tongue 5 and recess 6 closure constitute a cavity structure's die cavity 7 the correspondence is equipped with a plurality of product arch 9 in the die cavity 7.

In this embodiment, the positioning guide posts 4 are eight that are evenly distributed, and eight positioning guide posts can realize accurate location, and in practical application, can increase according to the reality.

The size fluctuation in the production process has effectively been avoided to this application, realizes the product production process, and production technology has the foolproof effect, and it is accurate to stabilize the size for a long time, can not produce the change of size because of the fluctuation of input material. In practical application, auxiliary facilities such as handles can be arranged on the side of the mold for convenient operation, and the structures and principles of the auxiliary facilities are known in the art and are not described in detail herein.

Although the invention has been shown and described in detail with respect to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. The utility model provides a precision rubber production mould, is including corresponding last mould (1), well mould (2) and lower mould (3) that set up, its characterized in that: the novel overflow device is characterized in that a plurality of positioning guide columns (4) are arranged among the upper die (1), the middle die (2) and the lower die (3), the positioning guide columns (4) can sequentially penetrate through the upper die (1), the middle die (2) and the lower die (3), the number of the positioning guide columns (4) is not less than eight, a plurality of overflow ditches (8) which are arranged in a cross mode are correspondingly formed in the surfaces of the interconnection positions of the upper die (1), the middle die (2) and the lower die (3), and the overflow ditches (8) correspondingly penetrate through the upper die (1), the middle die (2) or the lower die (3).

2. A precision rubber production mold according to claim 1, wherein: the lower part of the upper die (1) is correspondingly provided with a plurality of convex grooves (5) protruding outwards, the upper part of the middle die (2) is correspondingly provided with a plurality of concave grooves (6) recessed inwards, the convex grooves (5) are matched with the grooves (6), the upper part of the middle die (2) is correspondingly provided with a plurality of overflow ditches (8), each overflow ditch (8) comprises a plurality of transverse overflow ditches (81) arranged transversely and a plurality of longitudinal overflow ditches (82) arranged longitudinally, the plurality of transverse overflow ditches (81) arranged transversely are parallel to each other, the plurality of longitudinal overflow ditches (82) arranged longitudinally are parallel to each other, and the plurality of transverse overflow ditches (81) and the plurality of longitudinal overflow ditches (82) are crossed correspondingly.

3. A precision rubber production mold according to claim 2, wherein: the transverse overflow channels (81) are three at equal intervals, the longitudinal overflow channels (82) are three at equal intervals, and the transverse overflow channels (81) and the longitudinal overflow channels (82) are vertically crossed correspondingly.

4. A precision rubber production mold according to claim 2, wherein: go up the lower part correspondence of mould (1) and be equipped with four tongue (5) that are parallel to each other and the interval equals, the upper portion correspondence of well mould (2) is equipped with four recess (6) that are parallel to each other and the interval equals, tongue (5) and recess (6) match one by one, every die cavity (7) of a cavity structures is constituteed with recess (6) to tongue (5) and recess (6) closure correspond in die cavity (7) and be equipped with the protruding (9) of a plurality of product.

5. A precision rubber production mold according to claim 1, wherein: the positioning guide columns (4) are eight and are uniformly distributed.

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