CN217514044U

CN217514044U - Take silica gel product of gum and die-cut die of this product

Info

Publication number: CN217514044U
Application number: CN202220986685.1U
Authority: CN
Inventors: 李国江; 黄学平
Original assignee: Dongguan Enhao Electronics Co ltd
Current assignee: Dongguan Enhao Electronics Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-30
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a take silica gel product of gum and die-cut die of this product, wherein, this die includes the lower mould and goes up the mould, the lower mould from the bottom up is equipped with base, fixed plate, locating plate and metal clamp plate in proper order, it is equipped with panel, thimble board and die clamp plate in proper order to go up the mould from the top down. The utility model can stably fix the release film on the mould by arranging a plurality of first positioning holes and thimble holes on the release film, thereby being convenient for stably and rapidly finishing the gum pasting action; the silicon gel plate and the release film can be separated and fixed on the die by arranging the three positioning parts on the positioning plate of the lower die of the die and arranging the metal pressing plate on the positioning parts; through setting up the thimble on above, set up the drift on the lower mould, can accomplish in step in a compound die in-process and compress tightly the action from type membrane and die-cut silica gel product, the simple operation pastes the gum efficiently to can avoid leaking and paste gum, gum positional deviation scheduling problem, promote and paste the gum quality.

Description

Silica gel product with gum and die for punching product

Technical Field

The utility model relates to a silica gel production technical field, in particular to take silica gel product of gum and die-cut die of this product.

Background

Silica gel products have good sealing performance, are often made into sealing parts or protecting parts, and are widely applied to the interior of smart phones, such as sensors, cameras, earphones, audios and the like. In production, because the product is very small, the operation of manually pasting the back glue is very difficult, the efficiency is very low, a large amount of manual work is needed, and the conditions of bias pasting, missing pasting and the like of the back glue exist, so that the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a take silica gel product of gum and die-cut die of this product can fix on the mould with the parting film steadily to can accomplish in step in the compound die in-process and compress tightly the action from parting film and die-cut silica gel product, the simple operation pastes the gum efficiently, and can avoid leaking the gum of pasting, gum positional deviation scheduling problem, promotes the gum quality of pasting.

In order to solve the technical problem, the utility model discloses a technical scheme who takes as follows:

a silica gel product with a back adhesive comprises a release film and a plurality of independent silica gel pieces adhered to the release film through a double-sided adhesive; a plurality of top pin holes and a plurality of first positioning holes are arrayed on the release film; and a plurality of the silica gel pieces are products on the same silica gel plate.

The utility model discloses another kind of technical scheme who takes as follows:

a die for punching a silica gel product with gum in the first technical proposal, which comprises a lower die and an upper die,

the lower die is sequentially provided with a base, a fixed plate, a positioning plate and a metal pressing plate from bottom to top, the base is detachably and fixedly connected with the fixed plate, the positioning plate is movably connected with the fixed plate and can move along a die closing direction relative to the fixed plate, the metal pressing plate is an independent metal plate matched with the positioning plate, and a plurality of through grooves are formed in the metal pressing plate; the positioning plate is provided with a first positioning part, a second positioning part and a third positioning part, the first positioning part is matched with the silica gel plate, the second positioning part is matched with the metal pressing plate, and the third positioning part is matched with the release film; the fixed plate is provided with a plurality of punches which are matched with the through grooves one by one and extend along the die assembly direction, and the plurality of punches are arranged right below the first positioning part; the plurality of punches can penetrate through the positioning plate to punch and cut each silica gel piece from the silica gel plate in the mold closing process and push the silica gel piece to penetrate through the plurality of through grooves;

the upper die is sequentially provided with a panel, an ejector plate and a die pressing plate from top to bottom, the panel is detachably and fixedly connected with the ejector plate, and the die pressing plate is movably connected with the ejector plate and can move relative to the ejector plate along a die assembly direction; a plurality of ejector pins extending along the die assembly direction are arranged on the ejector pin plate, and the ejector pins are matched with the ejector pin holes one by one; each thimble can pass through the die pressing plate and the release film in sequence when the die is closed, and abuts against the metal pressing plate.

As a further elaboration of the above technical solution:

in the above technical solution, the first positioning portion is a groove adapted to the silica gel plate.

In the above technical solution, the second positioning portion is a plurality of second positioning columns, and the plurality of second positioning columns are symmetrically disposed on two sides of the first positioning portion.

In the above technical solution, the metal pressing plate is provided with a plurality of second positioning holes adapted to the second positioning posts one by one.

In the above technical solution, the third positioning portion is a plurality of third positioning posts that are adapted to the first positioning holes one by one, and the plurality of third positioning posts are symmetrically arranged on two sides of the second positioning portion.

In the technical scheme, a plurality of first guide pillars and a plurality of first springs are arranged between the positioning plate and the fixing plate; a plurality of second guide posts and a plurality of second springs are arranged between the die pressing plate and the ejector plate; each first guide post, each first spring, each second guide post and each second spring extend along the die assembly direction.

In the technical scheme, the upper die is provided with a plurality of third guide pillars extending along the die closing direction; and a third guide hole matched with the third guide pillar is arranged on the lower die.

Compared with the prior art, the beneficial effects of the utility model reside in that: the release film can be stably fixed on the die by arranging a plurality of first positioning holes and top pin holes on the release film, so that the gum attaching action can be conveniently and stably and rapidly completed; the three positioning parts are arranged on the positioning plate arranged on the lower die of the die, and the metal pressing plate is arranged on the positioning plate, so that the silica gel plate and the release film can be separated and fixed on the die; through setting up the thimble on above, set up the drift on the lower mould, can accomplish in step in a compound die in-process and compress tightly the action from type membrane and die-cut silica gel product, the simple operation pastes the gum efficiently to can avoid leaking and paste gum, gum positional deviation scheduling problem, promote and paste the gum quality.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is an exploded view of the first embodiment;

FIG. 3 is a schematic structural diagram of a silica gel plate according to a first embodiment;

FIG. 4 is a schematic structural view of the second embodiment in operation;

FIG. 5 is a schematic view of a partially exploded structure in operation according to the second embodiment;

FIG. 6 is a schematic sectional view showing the structure of the second embodiment in operation;

fig. 7 is an enlarged schematic view of a portion a in fig. 6.

In the figure: 10. a release film; 11. a thimble hole; 12. a first positioning hole; 13. double-sided adhesive tape; 20. a silicone member; 30. a silica gel plate; 31. rough selvedge of silica gel; 40. a lower die; 41. a base; 42. a fixing plate; 43. positioning a plate; 44. a metal platen; 45. a third guide hole; 50. an upper die; 51. a panel; 52. an ejector plate; 53. stamping a die pressing plate; 54. a third guide post; 60. a first guide post; 70. a first spring; 80. a second guide post; 90. a second spring; 1. a first positioning portion; 2. a second positioning portion; 3. a third positioning part; 4. a punch; 5. a thimble; 6. a second positioning hole; 7. a through groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships 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 thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a number" or "a plurality" is two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; 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 as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Example one

As shown in fig. 1-3, a silicone product with a back adhesive comprises a release film 10 and a plurality of independent silicone members 20 adhered thereto by double-sided adhesive tapes 13; a plurality of top pin holes 11 and a plurality of first positioning holes 12 are arrayed on the release film 10; the silica gel pieces 20 are all products on the same silica gel plate 30.

The production process of the conventional silica gel product with the gum comprises the following steps: silica gel plate 30 that contains a plurality of silica gel spare 20 is moulded with the silica gel mould earlier, and the die-cut silica gel plate 30 of reuse die cuts out each silica gel spare 20 alone, pastes one silica gel spare 20 one at last and takes the double faced adhesive tape from type membrane 10, wastes time and energy, and production efficiency is low. The utility model discloses a set up a plurality of thimble holes 11 and first locating hole 12 on leaving type membrane 10, can join in marriage with type membrane 10 and fix between the last lower mould of die to be convenient for the die with a plurality of direct die-cuts of silica gel spare 20 and paste on leaving type membrane 10, operation labour saving and time saving improves the production efficiency that silica gel spare 20 pasted the gum process.

Example two

As shown in fig. 4-7, a die for die cutting a silicone rubber product with a back adhesive in the first embodiment includes a lower die 40 and an upper die 50,

the lower die 40 is sequentially provided with a base 41, a fixed plate 42, a positioning plate 43 and a metal pressing plate 44 from bottom to top, the base 41 is detachably and fixedly connected with the fixed plate 42, the positioning plate 43 is movably connected with the fixed plate 42 and can move along the die assembly direction relative to the fixed plate, the metal pressing plate 44 is an independent metal plate matched with the positioning plate 43 and is provided with a plurality of through grooves 7; the positioning plate 43 is provided with a first positioning part 1, a second positioning part 2 and a third positioning part 3, the first positioning part 1 is matched with the silica gel plate 30, the second positioning part 2 is matched with the metal pressing plate 44, and the third positioning part 3 is matched with the release film 10; a plurality of punches 4 which are matched with the through grooves 7 one by one and extend along the die assembly direction are arranged on the fixing plate 42, and the plurality of punches 4 are arranged under the first positioning part 1 in a matching manner; the plurality of punches 4 can penetrate through the positioning plate 43 in the mold closing process to punch and cut each silica gel piece 20 from the silica gel plate 30 and push the silica gel pieces to penetrate through the plurality of through grooves 7;

the upper die 50 is sequentially provided with a panel 51, an ejector plate 52 and a die pressing plate 53 from top to bottom, the panel 51 is detachably and fixedly connected with the ejector plate 52, and the die pressing plate 53 is movably connected with the ejector plate 52 and can move along the die closing direction relative to the ejector plate; a plurality of ejector pins 5 extending along the die assembly direction are arranged on the ejector pin plate 52, and the ejector pins 5 are matched with the ejector pin holes 11 one by one; each thimble 5 can sequentially penetrate through the die pressing plate 53 and the release film 10 during die assembly and abut against the metal pressing plate 44.

Specifically, the first positioning portion 1 is a groove adapted to the silicone plate 30.

In this embodiment, the silicone rubber member 20 is a hollow frustum structure, the bottom of the first positioning portion 1 is provided with a plurality of protrusions adapted to each silicone rubber member 20 on the silicone rubber plate 30, and a through hole adapted to the punch 4 is formed in the center of each protrusion, so that the silicone rubber plate 30 can be better clamped and fixed, and the punching quality of each silicone rubber member 20 is ensured; in the die assembly process, the punch 4 can push each silica gel piece 20 to leave the silica gel plate 30 and drive each silica gel piece 20 to press against the double-sided adhesive tape 13 of the centrifugal film 10, so that the punching and back adhesive pasting actions are synchronously completed.

Specifically, the second positioning portion 2 is a plurality of second positioning columns, and the second positioning columns are symmetrically arranged on two sides of the first positioning portion 1.

Specifically, the metal pressing plate 44 is provided with a plurality of second positioning holes 6 adapted to the second positioning posts one by one.

Specifically, the third positioning portion 3 is a plurality of third positioning posts matched with the first positioning holes 12 one by one, and the plurality of third positioning posts are symmetrically arranged on two sides of the second positioning portion 2.

Specifically, a plurality of first guide posts 60 and a plurality of first springs 70 are arranged between the positioning plate 43 and the fixing plate 42; a plurality of second guide posts 80 and a plurality of second springs 90 are arranged between the die pressing plate 53 and the ejector plate 52; each of the first guide post 60, the first spring 70, the second guide post 80, and the second spring 90 extends in the mold clamping direction.

Specifically, the upper die 50 is provided with a plurality of third guide posts 54 extending along the die closing direction; the lower mold 40 is provided with a third guide hole 45 adapted to the third guide post 54.

The utility model discloses an operation process as follows:

the silica gel plate 30 and the release film 10: correctly placing the die on a punching machine; the metal pressing plate 44 is taken down, and the silica gel plate 30 is placed on the first positioning part 1 in a matching mode; then the second positioning hole 6 on the metal pressing plate 44 is aligned with the second positioning part 2 on the positioning plate 43, and the metal pressing plate 44 is placed on the positioning plate 43; then, the side of the release film 10 with the double-sided adhesive tape 13 faces the metal press plate 44, the first positioning hole 12 on the release film 10 is placed in alignment with the third positioning part 3 on the positioning plate 43, and the release film 10 is placed on the metal press plate 44;

punching and synchronously sticking gum: starting the punch press, and driving the upper die 50 to move towards the lower die 40 by the punch press; the die press plate 53 is first pressed against the release film 10; under the action of continuous mold clamping force, the ejector plate 52 continuously moves downwards to press the second spring 90 to contract and deform, and the plurality of ejectors 5 sequentially penetrate through the die pressing plate 53 and the ejector pin holes 11 to press the metal pressing plate 44 on the silica gel burrs 31; meanwhile, the metal pressing plate 44 is pressed to push the positioning plate 43 to compress the first spring 70 and move towards the fixing plate 42 together, each punch 4 on the fixing plate 42 penetrates through the positioning plate 43 to jack up each silica gel piece 20 on the silica gel plate 30, so that each silica gel piece 20 penetrates through the through groove 7 on the metal pressing plate 44 and is adhered to the double-sided adhesive tape 13 of the release film 10, and the punching and back adhesive adhering actions of the silica gel pieces 20 are completed synchronously.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a take silica gel product of gum which characterized in that: comprises a release film and a plurality of independent silica gel pieces adhered on the release film through double-sided adhesive tapes; a plurality of top pin holes and a plurality of first positioning holes are arrayed on the release film; and the silicon rubber pieces are all products on the same silicon rubber plate.

2. A die for die cutting the silicone rubber product with gum of claim 1, comprising a lower die and an upper die, wherein:

the upper die is sequentially provided with a panel, an ejector plate and a die pressing plate from top to bottom, the panel is detachably and fixedly connected with the ejector plate, and the die pressing plate is movably connected with the ejector plate and can move along a die closing direction relative to the ejector plate; a plurality of ejector pins extending along the die assembly direction are arranged on the ejector pin plate, and the ejector pins are all matched with the ejector pin holes one by one; each thimble can pass through the die pressing plate and the release film in sequence when the die is closed, and abuts against the metal pressing plate.

3. The die of claim 2, wherein the first locating portion is a groove that fits the silicone plate.

4. The die according to claim 2, wherein the second positioning portions are a plurality of second positioning posts symmetrically arranged on two sides of the first positioning portion.

5. The die as claimed in claim 4, wherein the metal pressing plate is provided with a plurality of second positioning holes matched with the second positioning columns one by one.

6. The die according to claim 2, wherein the third positioning portions are a plurality of third positioning columns matched with the first positioning holes one by one, and a plurality of third positioning columns are symmetrically arranged on two sides of the second positioning portion.

7. The die according to any one of claims 2 to 6, wherein a plurality of first guide posts and a plurality of first springs are arranged between the positioning plate and the fixing plate; a plurality of second guide posts and a plurality of second springs are arranged between the die pressing plate and the ejector plate; each first guide pillar, each first spring, each second guide pillar and each second spring extend along the mold closing direction.

8. The die according to claim 7, wherein the upper die is provided with a plurality of third guide posts extending along the die closing direction; and a third guide hole matched with the third guide pillar is formed in the lower die.