CN213321367U

CN213321367U - Interior division type bumper mould

Info

Publication number: CN213321367U
Application number: CN202021123975.0U
Authority: CN
Inventors: 林泉亨; 张玉华
Original assignee: Changheng Auto Parts Industry Kunshan Co ltd
Current assignee: Changheng Auto Parts Industry Kunshan Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-06-01
Anticipated expiration: 2030-06-17

Abstract

The application relates to an interior division type bumper mould, including bottom plate, movable mould board and fixed die plate junction have the barb portion of mutual lock, still be provided with ejecting subassembly on the bottom plate, ejecting subassembly includes guide rail and ejector pin, during the die sinking, the ejector pin is followed the guide rail shifts up and supports the top the barb portion of movable mould board makes movable mould board and fixed die plate separation. The utility model has the advantages that: the utility model discloses interior subtype bumper mould simple structure, design benefit when the mould die sinking to having the barb, realizes the smooth drawing of patterns of product, makes mould structure simplify, and it is more convenient to join in marriage the mould, has realized the surface requirement of product, reduces the processing cost and has increased the benefit, makes the parting line after the product shaping hidden in the surface, and the product is more pleasing to the eye.

Description

Interior division type bumper mould

Technical Field

The application belongs to the technical field of mould plastics, especially relates to an interior division type bumper mould.

Background

For plastic parts of automobile bumpers, there are two types, outer type and inner type. Aiming at large-area back-off at both sides of all automobile bumpers, external parting and internal parting can be adopted. The selection of the two types of parting modes mainly depends on the requirements of the automobile host factory of the final client on the bumper, generally, European and American automobiles mostly adopt an internal parting technology, and Japanese automobiles mostly adopt an external parting technology. The two parting modes have the advantages and disadvantages, the outer parting bumper needs to be treated to clamp wires, the processing procedures are increased, and the cost and the technical difficulty of the outer parting bumper are lower than those of the inner parting bumper. The internally-divided bumper perfectly molds the bumper once through a secondary orbital transfer control technology, so that the appearance quality of the bumper is ensured, the processing procedure and the processing cost of a plastic part are saved, but the internally-divided bumper has the defects of high mold cost and high mold technical requirement.

When the internal parting automobile bumper is manufactured, the bumper is often formed by the inward-contracting sliding block when the bumper has a complex structure. However, when the design requirement of the inward-shrinkage sliding blocks is high, the inward-shrinkage sliding blocks need to be not interfered with each other, and when the inward-shrinkage sliding blocks coexist, a large amount of space is occupied, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the inner parting bumper mold is provided for overcoming the defects of manufacturing the inner parting bumper in the prior art.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an interior division type bumper mould, includes bottom plate, movable mould board and fixed die plate, the movable mould board has the barb portion of mutual lock with the fixed die plate junction, still be provided with ejecting subassembly on the bottom plate, ejecting subassembly includes guide rail and ejector pin, and during the die sinking, the ejector pin is followed the guide rail shifts up and supports the top the barb portion of movable mould board makes movable mould board and fixed die plate separation.

In one embodiment, the barb is 4mm-5mm long.

In one embodiment, the ejection assemblies are arranged in pairs on two sides of the movable die plate and the fixed die plate.

In one embodiment, the number of the ejection assemblies is four, and every two ejection assemblies are distributed on two sides of the movable template and the fixed template at intervals.

In one embodiment, the guide rail is fixed on the bottom plate, and the mandril vertically moves up and down along the guide rail.

In one embodiment, the top end of the ejector rod is provided with a contact part, and the contact part is made of rubber.

The utility model has the advantages that: the utility model discloses interior subtype bumper mould simple structure, design benefit when the mould die sinking to having the barb, realizes the smooth drawing of patterns of product, makes mould structure simplify, and it is more convenient to join in marriage the mould, has realized the surface requirement of product, reduces the processing cost and has increased the benefit, makes the parting line after the product shaping hidden in the surface, and the product is more pleasing to the eye.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

Fig. 1 is a schematic structural view of an internal parting bumper mold according to an embodiment of the present application.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides an interior division type bumper mould, includes bottom plate 4, movable mould board 2 and fixed die plate 5, and the movable mould board 2 has barb portion 1 of mutual lock with the 5 junctions of fixed die plate, still is provided with ejecting subassembly 3 on the bottom plate, and ejecting subassembly 3 includes guide rail and ejector pin. When the mold is opened, the ejector rod moves upwards along the guide rail to abut against the barb part 1 of the movable mold plate 2, so that the movable mold plate 2 is separated from the fixed mold plate 5. In general, after plastic molding with barbs is carried out, normal demolding cannot be carried out, the barbs cannot be demolded normally due to the fact that the barb parts 1 are of an inward parting type, when one barb part 1 deforms inwards, if other barb parts contradict with each other in the movement direction, the barb parts 1 cannot be deformed inwards, and otherwise, the surface of a product is damaged by pulling. Embodiments may address separation of injection molded parts of complex bumper shapes, such as barbed or barbed connections, and the like.

In one embodiment, the barb 1 is 4mm to 5mm long. In different embodiments, the barb 1 may be 4mm or 4.5mm or 5mm long, etc.

In one embodiment, the ejection assemblies 3 are arranged in pairs on two sides of the movable die plate 2 and the fixed die plate 5, and uniformly apply force to eject the movable die plate 2 and the fixed die plate 5.

In order to further ensure that the ejection action of the movable mold plate 2 and the fixed mold plate 5 is not deformed and prevent the surface of a product from being damaged by pulling, in one embodiment, four ejection assemblies 3 are arranged on two sides of the movable mold plate and the fixed mold plate at intervals.

In one embodiment, the guide rail is fixed to the base plate 4, the lift pins vertically move up and down along the guide rail, and the lift pins may be square or cylindrical. The power source for pushing the mandril can be a cylinder and the like.

The common ejector rod has the same functions of an ejector rod used for a cold stamping die, an ejector rod used for a plastic die and a die-casting die, and an ejector rod used for a rubber die, and is used for unloading and demoulding. Ejector rods on injection molds and die-casting molds are part of formed products generally, and the fit clearance between the ejector rods and holes of the mold plate is small, so that material leakage can be prevented. The end surface of the ejector rod has the same surface roughness as the product and becomes a part of the product structure. The material used for manufacturing the ejector rod of the die-casting die is also required to be high-temperature resistant. The ejector rod of the cold punching die generally only plays a role in simple demoulding and discharging, and the fit clearance between the ejector rod and the hole is larger and less critical. In one embodiment, the top end of the ejector rod is provided with a contact part which is made of rubber material in order to prevent the product from being damaged or the surface of the product from being scratched.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The internal parting bumper mold is characterized by comprising a bottom plate, a movable mold plate and a fixed mold plate, wherein the joint of the movable mold plate and the fixed mold plate is provided with a barb part which is buckled with each other, the bottom plate is further provided with an ejection assembly, the ejection assembly comprises a guide rail and an ejector rod, and the ejector rod moves up along the guide rail to abut against the barb part of the movable mold plate during mold opening so as to separate the movable mold plate from the fixed mold plate.

2. The internal parting bumper mold of claim 1, wherein the barbed portion is 4mm-5mm long.

3. The internal parting bumper mold according to claim 1, wherein the ejector assemblies are arranged in pairs on both sides of the moving platen and the stationary platen.

4. The internal division type bumper mold according to claim 3, wherein the number of the ejector assemblies is four, and two ejector assemblies are arranged on two sides of the movable mold plate and the fixed mold plate at intervals.

5. The internal parting bumper mold according to claim 1, wherein said guide rail is fixed to said base plate, and said carrier bar is vertically moved up and down along said guide rail.

6. The internal parting bumper mold according to claim 1, wherein the top end of the ejector pin is provided with a contact portion, and the contact portion is made of rubber.