CN215703269U

CN215703269U - Protective housing forming die

Info

Publication number: CN215703269U
Application number: CN202122002506.4U
Authority: CN
Inventors: 刘毫毫; 潘广镇; 马美霞; 李军; 龚祥明; 李倩; 沈永凉; 范友君
Original assignee: Gongyi Van Research Yihui Composite Material Co Ltd
Current assignee: Gongyi Van Research Yihui Composite Material Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a protective shell forming die which comprises an upper die, a lower die and a core die arranged between the upper die and the lower die, wherein the upper die is provided with an upper groove forming an upper die cavity, and a first opening is formed in one side surface of the upper groove; the lower die is provided with a lower groove forming a lower die cavity, the side surface of the lower groove corresponding to the upper groove is provided with a second opening symmetrical to the first opening, two ends of the first opening and two ends of the second opening are both connected with a positioning block, and the bottom of the lower die cavity is provided with a glue overflow groove; exhaust holes are reserved in the side walls of the upper die and the lower die, and the upper die and the lower die are enclosed to form a cavity for the core die to be arranged; the core mould comprises a plurality of split moulds, and the both ends of core mould are equipped with the spacing groove with locating piece assorted, the core mould is equipped with strengthening rib shaping groove. The forming die for the protective shell is provided with the limiting structure, so that the integral thickness of a product is uniform, the core die is of a split die structure, the assembly is simple, the die taking is convenient, and the carbon fiber protective shell with higher forming precision can be obtained.

Description

Protective housing forming die

Technical Field

The utility model belongs to the technical field of tool molds, and particularly relates to a protective shell forming mold.

Background

At present, the thickness of notebook computer is frivolous gradually, and in order to prevent that the notebook shell from being scratched or broken, it is protected to optional corresponding computer protection shell. Common protective cases are made of soft plastics, hard plastics, leather materials and the like, and have the defects of easy oxidation, high density, poor heat conductivity and the like. Compared with the prior art, the carbon fiber material has the advantages of low density, high strength, good thermal conductivity and the like, and is a novel fiber material with excellent performance. The existing molding cavity type carbon fiber product adopts an inflatable bag molding process, and the quality of the inner surface of the molded product is poor and the phenomenon of wrinkles is easy to generate. In addition, the forming process of the inflatable bag has higher requirement on air pressure: the air pressure is low, the molding quality is poor, the thickness of the protective shell is thick, the density is low, and the strength is low; the air pressure is high, so that the resin is extruded too much, the resin content is low, the thickness of the product is thin, and the strength of the product is reduced. The utility model provides a carbon fiber product forming die, which overcomes the defects of the carbon fiber forming technology in the prior art and can obtain a carbon fiber product with higher forming precision.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: overcome the not enough of existence among the prior art, provide a protective housing forming die.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a protective shell forming die comprises an upper die, a lower die and a core die arranged between the upper die and the lower die, wherein the upper die is provided with an upper groove forming an upper die cavity, and a first opening is formed in one side surface of the upper groove; the lower die is provided with a lower groove forming a lower die cavity, the side surface of the lower groove corresponding to the upper groove is provided with a second opening symmetrical to the first opening, two ends of the first opening and two ends of the second opening are both connected with a positioning block, and the bottom of the lower die cavity is provided with a glue overflow groove; exhaust holes are reserved in the side walls of the upper die and the lower die, and the upper die and the lower die are enclosed to form a cavity for the core die to be arranged; the core mould comprises a plurality of split moulds, and the both ends of core mould are equipped with the spacing groove with locating piece assorted.

Specifically, the positioning block is clamped with the limiting groove to fix the upper die, the lower die and the core die, and product forming precision is guaranteed.

Specifically, four corners of going up the mould is equipped with the pin, the lower mould is equipped with the locating hole of cooperation pin location, go up mould and lower mould through the pin with locating hole swing joint.

Specifically, the bottom of the lower die cavity is provided with a glue overflow groove, burrs are formed between the glue overflow groove and a finished product in the pressing process, when the pressing is completed, the excessive burrs at the glue overflow groove are removed, and the deburring process in the product forming process is simplified.

Specifically, a plurality of prying die angles used for demolding are reserved at the notch of the lower die, and the upper die and the lower die are separated during subsequent demolding.

Specifically, the upper die and the lower die are both provided with handles.

Specifically, a first exhaust groove and a second exhaust groove which are encircled to form an exhaust hole are reserved in the side walls of the upper die and the lower die respectively.

Specifically, the core mold is provided with reinforcing rib forming grooves which are strip-shaped grooves or latticed grooves, and all edges of the reinforcing rib forming grooves are subjected to fillet treatment, so that demolding of subsequent products is facilitated.

Specifically, the contact surfaces between two adjacent split molds are mutually attached inclined surfaces, so that the demolding process can be realized by providing smaller demolding force after the product is molded.

Specifically, a mold taking part is reserved on the side wall of the core mold, the mold taking part comprises a mold taking handle or a threaded mold taking part, the split molds are connected with the mold taking handle, and the threaded mold taking part comprises a threaded hole formed in the side wall of the core mold and a threaded piece matched with the threaded hole.

The utility model has the beneficial effects that:

according to the protective shell forming die, the protective shell product is prepared by adopting the compression molding principle, and compared with an inflatable bag forming process, the protective shell forming die reduces the investment of a plurality of auxiliary devices and saves the cost. Meanwhile, the limiting structure is arranged in the die, so that the uniform thickness of the whole product is ensured, the forming quality precision of the inner and outer surfaces is high, and the surface quality of the product is good; the core mould is the multi-petal structure, is convenient for get the mould when the preparation is accomplished, and the core mould is from taking strengthening rib shaping groove, when the product preparation, can realize strengthening rib and casing goods integrated into one piece, practices thrift shaping cost and preparation time.

Drawings

Fig. 1 is a schematic structural view of the whole protective shell molding die;

fig. 2 is an exploded view of a protective case forming mold;

fig. 3 is a schematic structural view of an upper die of a protective shell forming die;

FIG. 4 is a schematic structural view of a lower mold of a protective shell molding mold;

FIG. 5 is a schematic view showing the structure of a core mold of a mold for molding a protective shell in example 1;

FIG. 6 is a schematic view showing the structure of a core mold of a mold for molding a protective shell in example 3;

1. an upper die; 101. a first opening; 2. a lower die; 201. a second opening; 3. a core mold; 301. splitting a mold; 4. an upper groove; 5. a lower groove; 6. positioning blocks; 7. a glue overflow groove; 8. a limiting groove; 9. an exhaust hole; 901. a first exhaust groove; 902. a second exhaust groove; 10. a pin; 11. positioning holes; 12. prying a mold corner; 13. a handle; 14. a reinforcing rib forming groove; 15. a threaded hole; 16. and (4) taking a mold handle.

Detailed Description

The following provides a brief description of embodiments of the present invention with reference to the accompanying drawings.

Example 1

A protective shell forming die is shown in figures 1, 2, 3, 4 and 5 and comprises an upper die 1, a lower die 2 and a core die 3 arranged between the upper die and the lower die, wherein the upper die 1 and the lower die 2 are consistent in size, the upper die 1 is provided with an upper groove 4 forming an upper die cavity, and one side surface of the upper groove 4 is provided with a first opening 101; the lower die 2 is provided with a lower groove 5 forming a lower die cavity, the side surface of the lower groove 5 corresponding to the upper groove 4 is provided with a second opening 201 symmetrical to the first opening 101, two ends of the first opening 101 and the second opening 201 are both connected with a positioning block 6, and the bottom of the lower die cavity is provided with a glue overflow groove 7; exhaust holes 9 are reserved in the side walls of the upper die 1 and the lower die 2, and the exhaust holes 9 can exhaust excessive gas in a carbon fiber base material or a die cavity in the die pressing forming process, so that the surface thickness of a product is uniform and flat; the upper die 1 and the lower die 2 enclose a cavity for the core die 3 to be arranged; the core mold 3 is formed by splicing three split mold structures, the two ends of the core mold 3 are provided with limiting grooves 8 matched with the positioning blocks 6, and the core mold 3 is provided with reinforcing rib forming grooves 14.

The positioning block 6 is a V-shaped positioning block, and the positioning block 6 is clamped with the limiting groove 8 to position and fix the upper die 1, the lower die 2 and the core die 3.

The four corners of going up mould 1 are equipped with pin 10, lower mould 2 is equipped with the locating hole 11 that cooperation pin 10 was fixed a position, go up mould 1 and lower mould 2 and pass through pin 10 and locating hole 11 swing joint.

The bottom of the lower die cavity is provided with a glue overflow groove 7, burrs are formed between the glue overflow groove 7 and a finished product in the pressing process, when the pressing is completed, the excessive burrs at the glue overflow groove 7 are removed, and the deburring process in the product forming process is simplified.

A plurality of prying die angles 12 for demolding are reserved at the notch of the lower die 2, so that the upper die 1 and the lower die 2 can be separated during subsequent demolding.

The upper die 1 and the lower die 2 are both provided with handles 13.

A first exhaust groove 901 and a second exhaust groove 902 which surround the exhaust hole 9 are reserved on the side walls of the upper die 1 and the lower die 2 respectively.

The side surface of the core mold 3 is provided with a strip-shaped reinforcing rib forming groove 14, and each side of the reinforcing rib forming groove 14 is subjected to round angle chamfering treatment, so that the subsequent product demolding is facilitated.

The core mold 3 is composed of three split molds 301, and the contact surfaces between two adjacent split molds 301 are mutually attached inclined surfaces, so that the demolding process can be realized by providing a small demolding force after the product is molded. Due to the angle direction of the contact inclined plane, the middle split mold is taken out of the three split molds 301 in the designed sequence during demolding, and then the left split mold and the right split mold are taken out in sequence, so that the operation is simple, and the influence on the product forming precision is small.

A screw hole 15 is formed in a side wall of the core mold 3, and a tool having a screw is screwed into the screw hole 15 at the time of mold removal, thereby facilitating separation of the core mold 3 from the lower mold 2.

Example 2

The difference from example 1 is that: the positioning block 6 is a square positioning block, the core mold is provided with a limiting groove 8 matched with the square positioning block, and the rest is the same as that of the embodiment 1.

Example 3

The difference from example 1 is that: as shown in fig. 6, the side surface of the core mold 3 is provided with rib forming grooves 14 in a square lattice shape, and the side wall of the core mold 3 is provided with a mold removal handle 16, which is the same as in example 1.

In addition, it should be understood that although the present specification describes embodiments, not every embodiment includes only one independent technical solution, and the technical solutions in the embodiments of the specification may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The working process and the working mode of the utility model are as follows: firstly, respectively spreading a carbon fiber substrate in an upper groove 4 and a lower groove 5; then, pasting a layer of PTFE (polytetrafluoroethylene) paster on the surface of the core mold 3 and smearing a release agent, sequentially placing the split molds 301 of the core mold 3 into the lower groove 5, placing the left and right split molds firstly, then placing the middle split mold, and clamping the positioning block 6 on the lower mold 2 into the limiting groove 8 on the core mold 3; then, the pin 10 on the upper die 1 is buckled with the positioning hole 11 on the lower die 2; finally, putting the whole die on a press for heating and pressing; after the carbon fiber base material is cured, separating the upper die 1 from the lower die 2 by prying the prying die angle 12; when the core mold 3 is taken out, the petals can be sequentially taken out according to requirements through the mold taking part, the middle petal can be taken out firstly, and then other petals can be taken out; and (5) standing and cooling the formed product, and removing redundant burrs between the glue overflow groove 7 and the formed product to obtain a protective shell product.

Claims

1. The utility model provides a protective housing forming die which characterized in that: the die comprises an upper die, a lower die and a core die arranged between the upper die and the lower die, wherein the upper die is provided with an upper groove forming an upper die cavity, and a first opening is formed in one side surface of the upper groove; the lower die is provided with a lower groove forming a lower die cavity, the side surface of the lower groove corresponding to the upper groove is provided with a second opening symmetrical to the first opening, two ends of the first opening and two ends of the second opening are both connected with a positioning block, and the bottom of the lower die cavity is provided with a glue overflow groove; exhaust holes are reserved in the side walls of the upper die and the lower die, and the upper die and the lower die are enclosed to form a cavity for the core die to be arranged; the core mould comprises a plurality of split moulds, and the both ends of core mould are equipped with the spacing groove with locating piece assorted.

2. The protective-case-molding die of claim 1, wherein: four corners of the upper die are provided with pins, the lower die is provided with positioning holes matched with the pins for positioning, and the upper die and the lower die are movably connected through the pins and the positioning holes.

3. The protective-case-molding die of claim 1, wherein: and a plurality of prying die angles for demolding are reserved at the notch of the lower die.

4. The protective-case-molding die of claim 1, wherein: the upper die and the lower die are both provided with handles.

5. The protective-case-molding die of claim 1, wherein: and a first exhaust groove and a second exhaust groove which surround the exhaust holes are reserved in the side walls of the upper die and the lower die respectively.

6. The protective-case-molding die of claim 1, wherein: the core mold is provided with a reinforcing rib forming groove.

7. The protective-case-molding die of claim 6, wherein: the reinforcing rib forming grooves are strip-shaped grooves or latticed grooves, and all edges of the reinforcing rib forming grooves are subjected to fillet treatment.

8. The protective-case-molding die of claim 1, wherein: the contact surface between two adjacent split molds is an inclined surface which is mutually attached.

9. The protective-case-molding die of claim 1, wherein: and a mold taking part is reserved on the side wall of the core mold.

10. The protective-case-molding die of claim 9, wherein: the mould taking component comprises a mould taking handle or a threaded mould taking part, a plurality of split moulds are connected with the mould taking handle, and the threaded mould taking part comprises a threaded hole arranged on the side wall of the core mould and a threaded part matched with the threaded hole.