CN218996015U - Foam spring fixture - Google Patents

Abstract

The utility model relates to the field of jigs, in particular to a jig for attaching foam springs, which comprises a machine shell, wherein a positioning groove is formed in the middle of the machine shell, a foam groove which is used for accommodating foam and has a depth smaller than the thickness of the foam is formed in the bottom of the positioning groove, a rectangular cavity is formed in the bottom of the foam groove, a cushion block is arranged in the rectangular cavity, and the bottom of the rectangular cavity is connected with a cushion block spring. Compared with the prior art, this patent is through setting up the cushion in the rectangle cavity that can stretch out or contract into completely, makes cushion and bubble cotton groove mutually support spacing to the bubble cotton, has solved the technical problem that the bubble cotton produced the displacement because the bubble cotton is not hugged closely the bubble cotton cell wall or is led to the bubble cotton when pressing the touch-sensitive screen that prior art exists to lead to the bubble cotton not attached at the position of touch-sensitive screen regulation.

Description

Foam spring fixture

Technical Field

The utility model relates to the field of jigs, in particular to a foam spring jig.

Background

The display touch control integrated module comprises a display screen and a touch screen with an FPC (flexible circuit board) attached to the edge of the screen, the display screen and the touch screen are required to be attached together during assembly, the display screen and the touch screen are attached in two attaching modes, one is a frame patch, the other is a full patch, and the small-size display touch control integrated module can be used for selecting the frame patch frequently based on the whole machine design, application scenes, market positioning and other reasons.

The frame paste is to paste a circle of square foam on the periphery of a visible area of the touch screen, the top surface and the bottom surface of the foam are coated with adhesive, and the top surface and the bottom surface of the foam are covered with protective films to separate the adhesive from the external environment; the protective film is torn off, and the touch screen is attached to the display screen through the foam, so that the foam can play a role in dust prevention and falling prevention (buffering). Because the liquid crystal modules of the mobile phone and the flat plate are developed to narrow frames, the design width of foam in the whole space is narrower and narrower, and the narrowest part of foam of many mobile phones is only 0.7mm wide, so that a jig is needed to assist in working when the foam is attached.

Currently, there are some foam sticking tools specially applied to display touch integrated modules in the market, for example: the Chinese patent utility model discloses a foam and light guide film two-in-one attaching jig (patent number ZL201721699429.X, publication time 2018, 6 months and 1 day) of a frame-attached product, which has the following structure: the upper surface of the jig base is provided with a positioning groove, the bottom of the middle of the positioning groove is provided with a foam groove, and a rectangular cavity is arranged in the middle of the foam groove.

The prior art mainly places the bubble cotton that is used for the frame to paste in the bubble cotton inslot, places the touch-sensitive screen in the constant head tank again, presses the touch-sensitive screen afterwards, makes touch-sensitive screen and the cotton laminating of bubble in the bubble cotton inslot together, has accomplished touch-sensitive screen and has pasted the cotton operation of bubble, because the bubble cotton groove is fixed with constant head tank relative position to guaranteed that the bubble cotton frame has pasted the assigned position at the touch-sensitive screen, however, this kind of mode of pasting the bubble cotton has following defect: because the bubble cotton matter is soft, and the two unification laminating jigs of bubble cotton and the light guide film of the frame subsides product that prior art shows do not all-round limit the position of bubble cotton, the bubble cotton is when placing in the bubble cotton groove, workman's finger slightly touches the bubble cotton, perhaps can make the bubble cotton produce deformation to appear the circumstances in the skew bubble cotton groove of bubble cotton, or when pressing down the touch-sensitive screen, if the touch-sensitive screen is not in the touch-sensitive screen center, the touch-sensitive screen is not parallel downwardly moving, and then lead to bubble cotton atress inhomogeneous and the production displacement in the bubble cotton inslot, the off tracking is to the rectangle cavity in centre, the above-mentioned two kinds of circumstances all probably lead to the bubble cotton not attached in touch-sensitive screen prescribed position.

Disclosure of Invention

The utility model aims to provide a foam spring attaching jig which is mainly used for solving the technical problem that foam is not attached to the specified position of a touch screen because the foam is deformed due to touch and is not attached to the wall of the foam groove or the foam is displaced when the touch screen is pressed.

In order to solve the technical problems, the utility model provides the following technical scheme:

a foam spring fixture comprises a shell, wherein a positioning groove in clearance fit with a touch screen is formed in the middle of the shell, a foam groove which is in clearance fit with foam and has a depth smaller than the thickness of foam is formed in the bottom of the positioning groove, a rectangular cavity is formed in the bottom of the foam groove, and a cushion block capable of moving up and down is in clearance fit in the rectangular cavity.

The working principle and the beneficial effects of the utility model are as follows:

1. working principle: the method comprises the steps that adhesive is smeared on the top surface and the bottom surface of foam, a protective film is covered on the adhesive, the adhesive is separated from the external environment, foam is placed between a foam groove and a cushion block, the protective film on the top of the foam is torn off, a touch screen is aligned to a positioning groove, the touch screen is pressed down, the touch screen is attached to the upper surface of the foam, and the positioning groove and the foam groove just accommodate the touch screen and the foam, so that the foam is attached to a frame every time, and the foam is located at a fixed position of the touch screen; in the process of pressing down the touch screen, the cushion block is driven to retract into the rectangular cavity, and before or when the touch screen is attached to the upper surface of the foam, the cushion block is always matched with the wall of the foam groove to limit the foam, so that the foam and the foam groove are prevented from generating relative displacement, and the position of the final foam frame attached to the touch screen is not in accordance with the requirements.

2. The beneficial effects are that: the prior art is through the relative position of fixed constant head tank and bubble cotton groove to guarantee the fixed laminating of bubble cotton on the touch-sensitive screen of unified specification, and bubble cotton groove position is less than the constant head tank, prevents that bubble cotton from producing the displacement for the constant head tank, has realized pasting the function that bubble cotton all can attach at touch-sensitive screen fixed position at every turn, but this kind still exists because bubble cotton does not hug closely bubble cotton cell wall or lead to bubble cotton to produce the displacement when pressing the touch-sensitive screen, thereby leads to the bubble cotton not attached at the technical problem of touch-sensitive screen regulation position.

This patent is through setting up the cushion that can stretch out or contract into the rectangle cavity completely, makes the bubble cotton before contact or contact the time with the touch-sensitive screen, always block between cushion and bubble cotton cell wall to can not leave the bubble cotton cell and produce relative displacement with the constant head tank, and then solved prior art because the bubble cotton does not hug closely the bubble cotton cell wall or lead to the bubble cotton to produce the displacement when pressing the touch-sensitive screen, thereby lead to the bubble cotton not attached at the technical problem of touch-sensitive screen prescribed position.

Preferably, the bottom of the rectangular cavity is vertically provided with a plurality of springs, and one end of each spring, which is far away from the bottom of the rectangular cavity, is fixedly connected to the lower surface of the cushion block. Make the cushion reciprocate in the rectangle cavity through the spring, simultaneously, press down the touch-sensitive screen and make touch-sensitive screen and bubble cotton paste the back, release the pressure of exerting in the touch-sensitive screen top, the cushion can upwards spring because of the elasticity of spring, holds up the touch-sensitive screen by the constant head tank lower part, makes things convenient for the workman to take off the touch-sensitive screen from the tool.

Preferably, flannelette for preventing scraping is attached to the upper surface of the cushion block. The touch screen is prevented from contacting the pad block to be scraped on the lower surface in the pressing process.

Preferably, through grooves communicated with the outer edge of the shell are formed in two sides of the positioning groove. After the foam is bonded, the touch screen is supported by the cushion block, a worker can stretch fingers into the through groove to clamp the touch screen, and the touch screen is taken down from the jig.

Preferably, one end of the positioning groove is provided with a containing groove which is vertically communicated with the outer edge of the shell and used for containing the FPC on the touch screen. The setting of holding tank can prevent that the touch-sensitive screen from being broken at the constant head tank edge at the in-process of pushing down, FPC card at touch-sensitive screen edge.

Preferably, the upper surface of the shell is connected with the upper edge arc of the positioning groove. The arc connection is used for preventing the touch screen from colliding with the edge of the positioning groove when the touch screen can be placed in the positioning groove along the arc edge.

Preferably, the depth of the foam groove is 0.1mm-0.2mm. Generally, the thickness of the foam is between 0.15 and 1.1mm, and the depth of the foam groove is smaller than that of the foam so as to ensure that the touch screen can be extruded to the upper surface of the foam in the pressing process, thereby ensuring that the foam is adhered to the touch screen more tightly.

Drawings

FIG. 1 is a schematic diagram of a foam spring fixture according to the present utility model;

FIG. 2 is a front cut-away view of the foam spring fixture of the present utility model;

fig. 3 is a top view of the foam spring fixture of the present utility model.

Reference numerals in the drawings of the specification include: the foam-rubber foam machine comprises a machine shell 1, a positioning groove 2, a foam-rubber groove 3, a rectangular cavity 4, a spring 5, a cushion block 6, a through groove 7 and a containing groove 8.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, a positioning groove 2 is formed in the middle of a machine shell 1, the opening area of the positioning groove 2 is equal to the bottom area of a touch screen, so that the touch screen and the positioning groove 2 form clearance fit, the upper surface of the machine shell 1 is connected with the upper edge of the positioning groove 2 in an arc manner, a foam groove 3 is formed in the bottom of the positioning groove 2, the opening area of the foam groove 3 is equal to the bottom area of the foam, foam and the foam groove 3 form clearance fit, and the depth of the foam groove 3 is 0.1mm; a rectangular cavity 4 is formed in the bottom of the foam groove 3, springs 5 are vertically arranged at four corners of the bottom of the rectangular cavity 4, one end, away from the bottom of the rectangular cavity 4, of each spring 5 is fixedly connected with a cushion block 6, each cushion block 6 is in clearance fit with the rectangular cavity 4, and each cushion block 6 moves up and down in the rectangular cavity 4 through each spring 5; the flannelette for preventing scraping is attached to the upper surface of the cushion block 6, so that the touch screen is prevented from contacting the lower surface of the scraping in the pressing process of the touch screen.

The two sides of the positioning groove 2 are provided with the through grooves 7 communicated with the outer edge of the shell 1, and the opening direction of the through grooves 7 is perpendicular to the edge of the positioning groove 2, so that a worker can conveniently stretch fingers into the through grooves 7 to clamp the touch screen, and the touch screen is taken down from the jig; the holding tank 8 that is used for holding FPC (flexible circuit board) on the touch-sensitive screen that communicates the casing 1 outer fringe perpendicularly has been seted up to constant head tank 2 one end, and the degree of depth of holding tank 8 is unanimous with the degree of depth of constant head tank 2, prevents the touch-sensitive screen at the in-process of pushing down, and the FPC card at touch-sensitive screen edge is broken at the constant head tank 2 edge.

From the above, the specific implementation manner of this embodiment is as follows:

the top surface and the bottom surface of the foam are coated with adhesive, and a protective film is covered on the adhesive to isolate the adhesive from the external environment. Firstly, placing foam between a foam groove 3 and a cushion block 6 by workers, and tearing off a protective film on the top of the foam to be pasted; cleaning the touch screen to be faced, aligning the touch screen to be faced with the positioning groove 2, pressing down to enable the touch screen to be attached to the upper surface of the foam, and enabling the foam to be clamped between the foam groove 3 and the cushion block 6 all the time and not to move; the pressure applied to the touch screen is released, the cushion block 6 is jacked up under the positioning groove 2 due to the action of the spring 5, so that the touch screen is supported out of the positioning groove 7 by a worker, fingers of the worker stretch into the positioning groove 7, the touch screen is clamped by two sides of the touch screen, the touch screen is separated from the jig for attaching the foam spring 5, and then the protective film on the bottom surface of the foam is torn off, so that the touch screen is attached to the display screen through the foam.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. The utility model provides a paste cotton spring tool of bubble, includes the casing, set up in the middle of the casing with touch-sensitive screen clearance fit's constant head tank, the foam groove with the cotton clearance fit of bubble and degree of depth be less than the cotton thickness of bubble, its characterized in that is seted up to the constant head tank bottom: rectangular cavities are formed in the bottoms of the foam tank bottoms, and cushion blocks capable of moving up and down are in clearance fit in the rectangular cavities.

2. The foam spring fixture of claim 1, wherein: a plurality of springs are vertically arranged at the bottom of the rectangular cavity, and one end, away from the bottom of the rectangular cavity, of each spring is fixedly connected to the lower surface of the cushion block.

3. The foam spring fixture of claim 1, wherein: flannelette for preventing scraping is attached to the upper surface of the cushion block.

4. The foam spring fixture of claim 1, wherein: and through grooves communicated with the outer edge of the shell are formed in two sides of the positioning groove.

5. The foam spring fixture of claim 1, wherein: one end of the positioning groove is provided with a containing groove which is vertically communicated with the outer edge of the shell and used for containing the FPC on the touch screen.

6. The foam spring fixture of claim 1, wherein: the upper surface of the shell is connected with the upper edge of the positioning groove in an arc manner.

7. The foam spring fixture of claim 1, wherein: the depth of the foam groove is 0.1mm-0.2mm.

Images