CN215849332U

CN215849332U - Key product mold

Info

Publication number: CN215849332U
Application number: CN202120410667.4U
Authority: CN
Inventors: 黎猛; 龙儒海
Original assignee: Shenzhen Fenda Technology Co Ltd
Current assignee: Shenzhen Fenda Technology Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2022-02-18
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a key product mold, which relates to the field of molds and comprises a front mold core, a rear mold core and an insert, wherein a key material injection space is formed inside the front mold core and the rear mold core after the front mold core and the rear mold core are combined, a lug is arranged on the rear mold core, and the lug is positioned in the key material injection space; the rear die core is provided with a mounting position for mounting an insert, the mounting position is positioned below the lug, the insert is mounted on the mounting position, the lug is provided with a contact bone position through hole, the contact bone position through hole penetrates through the lug, and the contact bone position through hole is communicated with the inside of the mounting position; and a contact bone position groove is formed in the end face, close to the contact bone position through hole, of the insert. This button product mould can effectively solve button product contact position of bone and drown angry and unedged problem.

Description

Key product mold

Technical Field

The utility model relates to the field of molds, in particular to a mold for key products.

Background

The button product is intelligent bluetooth speaker's important plastic accessory, and the button product is assembled on intelligent bluetooth speaker's host computer decoration, and the button product can be used for acting as intelligent bluetooth speaker's on & off key, volume control key etc.. The key product comprises a contact position, the position of a contact in the contact position is an important factor influencing the key function of the key product, and the shape and the size of the contact position in the contact position have direct influence on the key function. The existing key products are easy to generate the following problems: the height of the contact bone position of the existing key product is generally 5mm-8mm, so that the contact bone position is easy to be starved of glue when the key product is manufactured because the deep bone position is easy to be subjected to injection molding. In order to solve the above-mentioned problems, an insert must be added to a mold for manufacturing a key product, and there are mold for manufacturing a key product in which an insert is added in the market at present.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a key product mold which can effectively solve the problems of air trapping and burrs of contact positions of key products.

The utility model is realized by adopting the following technical scheme:

a key product mold comprises a front mold core, a rear mold core and an insert, wherein a key material injection space is formed inside the front mold core and the rear mold core after the front mold core and the rear mold core are combined, a lug is arranged on the rear mold core, and the lug is positioned in the key material injection space; the rear die core is provided with a mounting position for mounting an insert, the mounting position is positioned below the lug, the insert is mounted on the mounting position, the lug is provided with a contact bone position through hole, the contact bone position through hole penetrates through the lug, and the contact bone position through hole is communicated with the inside of the mounting position; the end face, close to the contact bone position through hole, of the insert is provided with a contact bone position groove, the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is compared with the outline edge, in the horizontal direction, of one end, close to the insert, of the contact bone position through hole, and the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is retracted by 0.005mm-0.2 mm.

Preferably, the depth of the contact bone site groove is 0.1mm-2 mm.

Preferably, the contour edge of the horizontal direction of one end of the contact bone position groove close to the contact bone position through hole is retracted by 0.05 mm.

Preferably, the cross section of the contact bone position through hole and the cross section of the contact bone position groove are both in a cross shape.

Preferably, the contact position through hole is arranged in a manner that the transverse size is gradually reduced from one end close to the front die core to one end close to the rear die core.

Preferably, the insert comprises an insert head and an insert tail, the insert head is connected with the insert tail, the insert head is arranged in a flat shape, the insert tail is arranged in a long strip shape, the cross-sectional area of the insert head is larger than that of the insert tail, and the contact bone groove is arranged on the end face, far away from the insert head, of the insert tail.

Preferably, the mounting position comprises a first accommodating cavity for accommodating the head of the insert and a second accommodating cavity for accommodating the tail of the insert, the second accommodating cavity and the tail of the insert are both arranged in a cylindrical shape, the radiuses of the second accommodating cavity and the tail of the insert are the same, and the length and the width of the tail of the insert are respectively greater than the length and the width of one end, close to the insert, of the contact bone position through hole.

Preferably, the lateral size of the contact bone groove is gradually reduced from one end far away from the head of the insert to one end close to the head of the insert.

Preferably, the depth of the contact bone position through hole is larger than the height of the bump.

Preferably, the rear die core is provided with a material injection hole, and the material injection hole is communicated with the key material injection space.

Compared with the prior art, the utility model has the beneficial effects that: the end face, close to the contact bone position through hole, of the insert in the key product mold is provided with the contact bone position groove, the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is compared with the outline edge, in the horizontal direction, of one end, close to the insert, of the contact bone position through hole, the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is retracted by 0.005mm-0.2mm, even if slight burrs exist in a manufactured key product, the assembling effect of the key product is not influenced, the contact position of the key product manufactured by the key product mold is flat, and the mass production performance and the stability of the key product are met.

Drawings

Fig. 1 is a schematic structural diagram of a key product mold in an embodiment of the utility model.

FIG. 2 is a schematic structural diagram of a rear mold core according to an embodiment of the utility model.

FIG. 3 is a front view of the back mold insert in an embodiment of the utility model.

Fig. 4 is a perspective view of an insert in an embodiment of the present invention.

Fig. 5 is a schematic front view of a product manufactured by the key product mold in the embodiment of the utility model.

Fig. 6 is a schematic reverse side view of a product manufactured by the key product mold in the embodiment of the utility model.

Reference numerals: 1. a front mold core; 2. a rear mold core; 3. an insert; 4. a key material injection space; 5. a bump; 6. An installation position; 7. a contact bone through hole; 8. the head of the insert; 9. the tail part of the insert; 10. contact bone position groove.

Detailed Description

The technical solution provided by the utility model is explained in more detail below with reference to fig. 1-6.

As shown in fig. 1-6, an embodiment of the present invention provides a key product mold, which includes a front mold core 1, a rear mold core 2 and an insert 3, wherein the front mold core 1 and the rear mold core 2 are combined to form a key material injection space 4 inside, the rear mold core 2 is provided with material injection holes, the material injection holes are communicated with the key material injection space 4, the number of the key material injection spaces 4 is four, the rear mold core 2 is provided with twelve protrusions 5, the twelve protrusions 5 are grouped into four groups, and the four groups of protrusions 5 are respectively located in the four key material injection spaces 4.

The rear die core 2 is provided with installation positions 6 for installing the insert 3, the installation positions 6 are twelve in number, the installation positions 6 correspond to the convex blocks 5 one by one, the installation positions 6 are located below the convex blocks 5, the insert 3 corresponds to the installation positions 6 one by one, the insert 3 is installed on the installation positions 6, contact bone position through holes 7 are formed in the convex blocks 5, the depth of the contact bone position through holes 7 is larger than the height of the convex blocks 5, the cross sections of the contact bone position through holes 7 are in a cross shape, the transverse size of one ends, close to the front die core, of the contact bone position through holes 7 is gradually reduced to the transverse size of one ends, close to the rear die core, the contact bone position through holes 7 penetrate through the convex blocks 5, and the contact bone position through holes 7 are communicated with the interior of the installation positions 6.

The insert 3 comprises an insert head 8 and an insert tail 9, the insert head 8 is connected with the insert tail 9, the insert head 8 and the insert tail 9 are integrally formed, the insert head 8 is arranged in a flat shape, the insert tail 9 is arranged in a long strip shape, the cross-sectional area of the insert head 8 is larger than that of the insert tail 9, and the contact bone groove 10 is arranged on the end face, far away from the insert head 8, of the insert tail 9. The mounting position 6 comprises a first accommodating cavity for accommodating the head 8 of the insert and a second accommodating cavity for accommodating the tail 9 of the insert, the second accommodating cavity and the tail 9 of the insert are both arranged in a cylindrical shape, the radiuses of the second accommodating cavity and the tail 9 of the insert are the same, and the length and the width of the tail 9 of the insert are respectively greater than those of one end, close to the insert 3, of the contact bone position through hole 7. The contact bone groove 10 is arranged from the end far away from the insert head 8 to the end close to the insert head 8, and the size of the contact bone groove is gradually reduced in the transverse direction.

The end face, close to the contact bone position through hole 7, of the insert 3 is provided with a contact bone position groove 10, the cross section of the contact bone position groove 10 is in a cross shape, the depth of the contact bone position groove 10 is 0.5mm, the outline edge of the contact bone position groove 10 in the horizontal direction is retracted by 0.05mm compared with the outline edge of the contact bone position through hole 7, close to one end of the insert 3, in the horizontal direction.

The key product mold in the embodiment has the advantages that: the end face, close to the contact bone position through hole 7, of the insert 3 in the key product mold is provided with the contact bone position groove 10, the profile edge, in the horizontal direction, of one end, close to the contact bone position through hole 7, of the contact bone position groove 10 is compared with the profile edge, in the horizontal direction, of one end, close to the insert 3, of the contact bone position through hole 7, the profile edge, in the horizontal direction, of one end, close to the contact bone position through hole 7, of the contact bone position groove 10 is retracted by 0.05mm, even if slight burrs exist in a manufactured key product, the assembling effect of the key product is not affected, the contact position of the key product manufactured through the key product mold is flat, and the mass production performance and the stability of the key product are met.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A key product mould which is characterized in that: the key injection molding die comprises a front die core, a rear die core and an insert, wherein a key injection space is formed inside the front die core and the rear die core after the front die core and the rear die core are combined, and a convex block is arranged on the rear die core and is positioned in the key injection space; the rear die core is provided with a mounting position for mounting an insert, the mounting position is positioned below the lug, the insert is mounted on the mounting position, the lug is provided with a contact bone position through hole, the contact bone position through hole penetrates through the lug, and the contact bone position through hole is communicated with the inside of the mounting position; the end face, close to the contact bone position through hole, of the insert is provided with a contact bone position groove, the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is compared with the outline edge, in the horizontal direction, of one end, close to the insert, of the contact bone position through hole, and the outline edge, in the horizontal direction, of one end, close to the contact bone position through hole, of the contact bone position groove is retracted by 0.005mm-0.2 mm.

2. The key product mold of claim 1, wherein: the depth of the contact bone position groove is 0.1mm-2 mm.

3. The key product mold of claim 1, wherein: the contour edge of one end of the contact bone position groove, which is close to the contact bone position through hole, in the horizontal direction is retracted by 0.05 mm.

4. The key product mold of claim 1, wherein: the cross section of the contact bone position through hole and the cross section of the contact bone position groove are both in a cross shape.

5. The key product mold of claim 1, wherein: the contact position through hole is arranged in a manner that the transverse size of one end close to the front die core is gradually reduced to one end close to the rear die core.

6. The key product mold of claim 1, wherein: the contact bone position groove is formed in the end face, far away from the head part of the insert, of the tail part of the insert.

7. The key product mold of claim 6, wherein: the mounting position comprises a first accommodating cavity used for accommodating the head of the insert and a second accommodating cavity used for accommodating the tail of the insert, the second accommodating cavity and the tail of the insert are both arranged in a cylindrical shape, the radiuses of the second accommodating cavity and the tail of the insert are the same, and the length and the width of the tail of the insert are respectively greater than the length and the width of one end, close to the insert, of the contact bone position through hole.

8. The key product mold of claim 6, wherein: the contact bone position groove is arranged from one end far away from the head of the insert to one end close to the head of the insert, and the transverse size of the contact bone position groove is gradually reduced.

9. The key product mold of claim 1, wherein: the depth of the contact bone position through hole is greater than the height of the bump.

10. The key product mold of claim 1, wherein: and the rear die core is provided with a material injection hole which is communicated with the key material injection space.