Inner drawing piece of large mold

Abstract

The utility model discloses an inner pulling piece of a large mold. The inner pulling piece comprises an inner pulling main body, the bulge is arranged on one side of the inner drawer main body; the oil grooves are formed in the outer walls of the protrusions, and the multiple oil grooves are arranged in a crossed mode and communicate with one another. The oil groove is formed in the outer wall of the protrusion, during work, lubricating oil can be squeezed into the oil groove in the friction process of the inner drawing piece and the cavity wall, the lubricating oil continuously acts, and therefore the situation that the inner drawing piece is blocked or stuck under the condition that no lubrication exists is avoided; and the situation that iron powder is generated due to the fact that friction force between the inner pulling piece and the cavity wall is too large is avoided, and the problems of mold scratching and product defects caused by the fact that the mold generates the iron powder are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to large -scale mould technical field especially relates to a large -scale mould inner extraction piece. BACKGROUND

[0002] With the rapid development of the automobile industry, the design of the car lamp modeling has gradually tended to pursue longer and larger size, at the same time, due to the super large size of the mould, the relative sliding structure (such as: mould internal slider, inner extraction piece etc.) inside the mould is also large size, the default processing of the machining industry has a tolerance, the accumulated tolerance of the large size sliding structure is more prone to cause the structure to jam or even be stuck during production.

[0003] Among them, when the mould jams or is stuck during production, the friction between the mould and the inner extraction piece is extremely easy to produce iron powder, if the generated iron powder falls on the product, it will form product pitting, such products have defects, are defective products, if the iron powder falls on the product surface of the mould cavity, it will cause the mould to be scratched, at this time, unless the production is stopped for mould repair, otherwise every mould product produced has defects, such products are defective products, such problems need to be solved, for this, the application provides a large -scale mould inner extraction piece. UTILITY MODEL CONTENT

[0004] Therefore, in order to solve the problems in the prior art, the application provides a large -scale mould inner extraction piece, which comprises an inner extraction body;

[0005] The protrusion is arranged on one side of the inner extraction body.

[0006] The oil groove is arranged on the outer wall of the protrusion, and the plurality of oil grooves are arranged in cross and are communicated with each other.

[0007] Further, the outer wall of the protrusion is provided with a first cavity contact surface, a second cavity contact surface and a third cavity contact surface, and the oil grooves are arranged on the first cavity contact surface, the second cavity contact surface and the third cavity contact surface respectively.

[0008] Further, the plurality of cross oil grooves form a mesh shape.

[0009] Further, the mesh-shaped oil groove has a grid, and the grid shape is a square or a rhombus.

[0010] Further, the included angle between every two cross oil grooves is 30°-150°.

[0011] Further, the distance between every two parallel oil grooves is 20mm-40mm.

[0012] Further, the depth of the oil groove is 0.5mm-1.5mm.

[0013] Further, the two ends of each oil groove do not exceed the outer wall of the protrusion.

[0014] Further, the mesh oil groove is provided with several groups, which are uniformly distributed on each cavity contact surface of the protrusion.

[0015] Beneficial effects: the oil groove arranged on the outer wall of the protrusion can continuously produce the effect of lubricating oil during the process of mutual friction between the inner extraction part and the cavity wall, thereby avoiding the situation that the inner extraction part is stuck or dead without lubrication, and the situation that iron powder is generated between the inner extraction part and the cavity wall due to excessive friction, and avoiding the problem that the mold is scratched and the product is defective due to the iron powder generated by the mold. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0017] Fig. 1 It is a large mold inner extraction part structure schematic view of the present application;

[0018] Fig. 2 It is a large mold inner extraction part side view of the present application;

[0019] In the figure: 1, inner extraction main body;2, protrusion;21, first cavity contact surface;22, second cavity contact surface;23, third cavity contact surface;3, oil groove.

[0020] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0023] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, "and / or" throughout the text includes three schemes, taking A and / or B as an example, including A technical solution, B technical solution, and A and B technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0024] As shown in Figs. 1-2 The present application provides a large mold inner extraction part, which comprises: an inner extraction body 1;

[0025] A protrusion 2 is arranged on one side of the inner extraction body 1;

[0026] An oil groove 3 is arranged on the outer wall of the protrusion 2, and a plurality of oil grooves 3 are arranged in cross and are in communication with each other.

[0027] In the present embodiment, the inner extraction body 1 is slidingly arranged in the mold cavity, and the outer wall of the protrusion 2 is in contact with the mold cavity wall and is slidingly connected therebetween;

[0028] The outer wall of the protrusion 2 is formed by a first cavity contact surface 21, a second cavity contact surface 22 and a third cavity contact surface 23, and the oil groove 3 is arranged on the first cavity contact surface 21, the second cavity contact surface 22 and the third cavity contact surface 23 respectively;

[0029] Optionally, the same oil groove 3 can be formed at the positions corresponding to the first cavity contact surface 21, the second cavity contact surface 22 and the third cavity contact surface 23 on the cavity wall;

[0030] The depth of the oil groove 3 is 0.5mm-1.5mm, which can be selected according to the production needs and the size of the mold, and the depth of the oil groove 3 in the present embodiment is 1mm;

[0031] By arranging the oil groove 3 on the outer wall of the protrusion 2, during work, the lubricating oil for lubrication will be applied between the outer wall of the protrusion 2 and the cavity wall, and the process of mutual friction between the inner extraction part and the cavity wall will squeeze the lubricating oil into the oil groove 3 to make the lubricating oil continuously act, thereby avoiding the situation that the inner extraction part is stuck or dead without lubrication, and the situation that iron powder is generated between the inner extraction part and the cavity wall due to excessive friction, and avoiding the problem that the mold is scratched and the product is defective due to the generation of iron powder in the mold.

[0032] In one embodiment, several intersecting oil grooves 3 form a mesh shape.

[0033] In the present embodiment, the oil grooves 3 are arranged in a mesh shape, which can accommodate more lubricating oil while making the lubricating oil evenly distributed, thus improving the lubricating effect.

[0034] Optionally, the mesh shape of the mesh-shaped oil grooves 3 is a regular quadrilateral or a rhombus.

[0035] Optionally, the included angle between every two intersecting oil grooves 3 is 30°-150°.

[0036] Optionally, the distance between every two mutually parallel oil grooves 3 is 20mm-40mm, which can be selected according to the size of the mold.

[0037] In one embodiment, both ends of each oil groove 3 do not exceed the outer wall of the protrusion 2.

[0038] In the present embodiment, by arranging both ends of the oil groove 3 not to communicate with the outside of the oil groove 3, the purpose is to make the lubricating oil entering the inside of the oil groove 3 during sliding remain in the oil groove 3 and not leak out to affect the injection molding of the product, while continuously providing lubricating effect for the contact surface between the inner extraction part and the cavity wall.

[0039] In one embodiment, the mesh-shaped oil grooves 3 are arranged in several groups and uniformly distributed on each cavity contact surface of the protrusion 2.

[0040] In the present embodiment, several groups of mesh-shaped oil grooves 3 are arranged, which are uniformly distributed on each cavity contact surface of the protrusion 2, thus further improving the lubricating effect and greatly reducing the friction between the inner extraction part and the cavity wall.

[0041] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields based on the content of the present application specification and drawings is included in the patent protection scope of the present application.

Claims

1. A large scale mold core, characterized by, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

2. The large-scale mold inner extraction member according to claim 1, characterized by, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

3. The large-scale mold inner extraction member according to claim 1, characterized by, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

4. The large-scale inner draw of claim 3, wherein, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

5. The large-scale inner draw of claim 4, wherein, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

6. The large-scale inner draw of claim 4, wherein, The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

7. The large-scale insert-molded part of claim 1, wherein The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

8. The large-scale insert-molded article of claim 1, wherein The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

9. The large-scale insert of claim 3, wherein The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex. The utility model relates to a type cavity contact surface, and a type cavity contact surface is arranged on the outer wall of the convex.

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