CN210038384U

CN210038384U - Automatic parallel pressure head on mobile phone display screen binding equipment

Info

Publication number: CN210038384U
Application number: CN201921077397.9U
Authority: CN
Inventors: 黄瑞良; 苏远
Original assignee: Dongguan Huahui Intelligent Equipment Co Ltd
Current assignee: Dongguan Huahui Intelligent Equipment Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-02-07
Anticipated expiration: 2029-07-11

Abstract

The utility model belongs to the technical field of the mobile phone display screen makes, especially, be an automatic parallel pressure head on mobile phone display screen nation equipment, including the main part connecting piece, be equipped with globular center stress point in the main part connecting piece, fixed mounting has the heating tube in the main part connecting piece, movable mounting has the activity to attach and makes the folder in the main part connecting piece, the activity attaches the bottom fixed mounting who makes the folder and has the stress pressure head, symmetrical slidable mounting has two sliding guide arm on the main part connecting piece, sliding guide arm runs through the main part connecting piece, just sliding guide arm attaches with the activity and makes folder sliding connection. The utility model provides a traditional fixed pressure head part material inflation influences the problem of the parallel precision of pressure head in the heating, makes the gold particle that ACF glued can fully explode, improves product quality, transfers the aircraft crew to need not adjust the depth of parallelism of pressure head simultaneously, reduces manpower resources's consumption.

Description

Automatic parallel pressure head on mobile phone display screen binding equipment

Technical Field

The utility model relates to a mobile phone display makes technical field, especially relates to an automatic parallel on mobile phone display bonding equipment is pressed.

Background

The bonding pressure head mechanism is widely applied to equipment for connecting a mobile phone screen liquid crystal Display module (LCM) (liquid Display module) with a bonding process in a combined mode; that is, a component assembly in which other structural members such as a liquid crystal display, a driver circuit, an FPC (Flexible printed circuit), a backlight, and the like are assembled. The mechanical connection and electrical conduction of the liquid crystal glass, the driving circuit and the FPC in the liquid crystal display are core parts of LCM production, wherein the production process of the liquid crystal glass and the FPC is an FOG (film On glass) bonding process, namely, the FPC is carried On a glass panel; the technological equipment in the FOG bonding process uses the pressure head mechanism, and the following is the basic flow of the process:

1. pre-pasting an ACF: pasting an ACF with a specified length at an ITO end of the liquid crystal glass or a pin needing to be bonded of the FPC;

2. pre-bonding: aligning pins of the FPC and the ITO end of the liquid crystal glass through an auxiliary image system on an FOG bonding machine, and prepressing to form preliminary connection;

3. main bonding: under higher temperature and pressure, the pre-bonded LCM product is subjected to main bonding, the electrical connection between the FPC and the liquid crystal glass is realized through the deformation of ACF conductive particles and the breakage of an insulating layer, and meanwhile, two different materials of the FPC and the liquid crystal glass are connected together through the polymerization hardening of ACF glue at high temperature to provide enough mechanical connection strength.

The full-automatic COG bonding machine mainly comprises three units of ACF (anisotropic conductive adhesive or anisotropic conductive film), prepressing and local pressing, wherein the local pressing unit is also called a local pressing bonding device and is used for completing the rear-end process of the display screen, namely the local pressing stage. Specifically, the ram of the present compression bonding apparatus is primarily responsible for providing a Z-axis motion that imparts about 150 Ν and 300 Ν to the buffered silica gel ribbon, which is then transmitted to the glass substrate and the IC.

If the circuit between the IC and the glass substrate is well communicated, the pressure head and the screen body supporting surface need to be horizontally adjusted, and the adjustment accuracy directly influences the product effect. The above-mentioned level adjustment is usually achieved by a level adjustment mechanism.

However, in the prior art, the horizontal adjusting mechanism needs a plurality of components to be matched for use; in addition, in the stage of the present pressure, the required temperature of the pressure head is as high as 200-, therefore, the LCM product bonded by the FOG process has serious potential quality hazard, and therefore, the automatic parallel pressure head on the bonding equipment of the display screen of the mobile phone is provided.

Disclosure of Invention

The utility model aims at solving the shortcoming that exists among the prior art, and the automatic parallel pressure head on the mobile phone display screen bonding equipment that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an automatic parallel pressure head on mobile phone display screen nation decides equipment, includes the main part connecting piece, be equipped with globular central stress point in the main part connecting piece, fixed mounting has the heating tube in the main part connecting piece, movable mounting has the activity to attach and makes the folder in the main part connecting piece, the activity is attached the bottom fixed mounting who makes the folder and is had the atress pressure head, symmetrical slidable mounting has two slip guide arms on the main part connecting piece, the slip guide arm runs through the main part connecting piece, just the slip guide arm attaches with the activity and makes folder sliding connection, the slip cover is equipped with the spring on the slip guide arm, the one end fixed mounting of slip guide arm has circli.

Preferably, the bottom of the main body connecting piece is provided with a groove, two sides of the groove are provided with openings, and the inner wall of the groove is movably connected with the movable attachment clamping piece.

Preferably, one end of the spring is fixedly connected with the spring retainer ring, and the other end of the spring is fixedly connected with the main body connecting piece.

Preferably, the main body connecting piece and the stress pressure head are both made of tungsten steel.

Preferably, the spherical central force bearing point is made of high-strength steel balls.

Preferably, the stiffness coefficient of the spring is 10N/m-20N/m.

Compared with the prior art, the beneficial effects of the utility model are that: the device comprises a main body connecting piece, a spherical central stress point, a heating pipe, a movable attached clamping piece, a stressed pressure head, a sliding guide rod and a spring, wherein the main body connecting piece is made of tungsten steel, and is subjected to vacuum heat treatment, so that a workpiece is not expanded in heating, the spherical central stress point plays an automatic parallel stress role in the pressure head in the pressing stress of a bonding contact product, the heating pipe can heat the stressed pressure head, the stressed pressure head ensures that gold particles of the product are optimally contacted with a parallel surface, the movable attached clamping piece is pulled by the sliding guide rod and the spring to limit the front and back directions of the stressed pressure head, and simultaneously, the automatic parallel adjustment function of the left and right directions of the stressed pressure head can be achieved, the stress of the stressed pressure head is transmitted to the stress point of the spherical central stress point in the bonding process, and the purpose of automatically adjusting the parallelism of the pressure head is achieved;

the utility model provides a traditional fixed pressure head part material inflation influences the problem of the parallel precision of pressure head in the heating, makes the gold particle that ACF glued can fully explode, improves product quality, transfers the aircraft crew to need not adjust the depth of parallelism of pressure head simultaneously, reduces manpower resources's consumption.

Drawings

Fig. 1 is a perspective view of the front view structure of the present invention;

fig. 2 is a perspective view of the rear view structure of the present invention;

FIG. 3 is a schematic view of the self-parallel stress structure of the pressure head of the present invention;

FIG. 4 is a perspective view of the cross-sectional structure of the present invention;

fig. 5 is a schematic cross-sectional structure shown in fig. 3.

In the figure: 1. a main body connector; 2. a spherical central force point; 3. a heat generating tube; 4. a movable auxiliary clamping piece; 5. a stressed pressure head; 6. a sliding guide bar; 7. a spring; 8. and a spring retainer ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic parallel pressure head on a mobile phone display screen binding device comprises a main body connecting piece 1, wherein a spherical central stress point 2 is arranged in the main body connecting piece 1, a heating tube 3 is fixedly arranged in the main body connecting piece 1, a movable attached clamping piece 4 is movably arranged in the main body connecting piece 1, a stress pressure head 5 is fixedly arranged at the bottom of the movable attached clamping piece 4, two sliding guide rods 6 are symmetrically and slidably arranged on the main body connecting piece 1, the sliding guide rods 6 penetrate through the main body connecting piece 1, the sliding guide rods 6 are slidably connected with the movable attached clamping piece 4, springs 7 are slidably sleeved on the sliding guide rods 6, and spring retainer rings 8 are fixedly arranged at one ends of the sliding guide rods 6;

the bottom of the main body connecting piece 1 is provided with a groove, the two sides of the groove are provided with openings, the inner wall of the groove is movably connected with a movable attached clamping piece 4, one end of a spring 7 is fixedly connected with a spring retainer ring 8, the other end of the spring 7 is fixedly connected with the main body connecting piece 1, the main body connecting piece 1 and a stressed pressure head 5 are both made of tungsten steel, a spherical central stress point 2 is made of high-strength steel balls, the stiffness coefficient of the spring 7 is 10N/m-20N/m, the device is matched with a spherical central stress point 2, a heating pipe 3, the movable attached clamping piece 4, the stressed pressure head 5, a sliding guide rod 6 and the spring 7 through the main body connecting piece 1, the spherical central stress point 2 is made of tungsten steel and has no expansion in heating, and the central stress point 2 plays an automatic parallel stress role in the pressure head in pressing stress of a bonding contact product, heating tube 3 can heat atress pressure head 5, and atress pressure head 5 has guaranteed to connect the most ideal contact parallel face of product gold particle, and the activity is attached to be done folder 4 and is attached to do to pull down at sliding guide 6 and spring 7, restricts atress pressure head 5 fore-and-aft direction, can reach the automatic parallel adjustment effect in the atress pressure head 5 left and right sides simultaneously again, and atress pressure head 5 atress transmits globular central stress point 2 atress in nation's technology, and the depth of parallelism that reaches the automatic adjustment pressure head is the purpose, the utility model provides a problem that traditional fixed pressure head part material inflation influences the pressure head parallel precision in the heating, make the gold particle that the ACF glued can fully explode, improve product quality, the number of dispatchers does not need the depth of parallelism of adjustment pressure head simultaneously, reduces the consumption of manpower resources.

The working principle is as follows: the main body connecting piece 1 is made of tungsten steel and is subjected to vacuum heat treatment, so that a workpiece does not expand in use and heating, the spherical central stress point 2 plays an automatic parallel stress role in the pressing stress of a bonding contact product by a pressure head, the heating tube 3 can heat the stress pressure head 5, the stress pressure head 5 ensures the optimal contact parallel surface of gold particles of the bonding contact product, the movable attached clamping piece 4 is pulled down by the sliding guide rod 6 and the spring 7 to limit the front and back directions of the stress pressure head 5 and simultaneously achieve the automatic parallel adjustment role of the left and right sides of the stress pressure head 5, the stress of the stress pressure head 5 is transmitted to the spherical central stress point 2 in the bonding process, and the aim of automatically adjusting the parallelism of the pressure head is fulfilled.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic parallel pressure head on mobile phone display screen nation decides equipment, includes main part connecting piece (1), its characterized in that: be equipped with globular central stress point (2) in main part connecting piece (1), fixed mounting has heating tube (3) in main part connecting piece (1), main part connecting piece (1) interior movable mounting has the activity to attach and makes folder (4), the bottom fixed mounting that folder (4) were attached to the activity has atress pressure head (5), symmetrical slidable mounting has two slip guide (6) on main part connecting piece (1), slip guide (6) run through main part connecting piece (1), just slip guide (6) attach with the activity and make folder (4) sliding connection, the slip cover is equipped with spring (7) on slip guide (6), the one end fixed mounting of slip guide (6) has spring collar (8).

2. The automatic parallel pressure head of claim 1 on a mobile phone display screen bonding device, characterized in that: the bottom of the main body connecting piece (1) is provided with a groove, two sides of the groove are provided with openings, and the inner wall of the groove is movably connected with the movable attached clamping piece (4).

3. The automatic parallel pressure head of claim 1 on a mobile phone display screen bonding device, characterized in that: one end of the spring (7) is fixedly connected with the spring retainer ring (8), and the other end of the spring (7) is fixedly connected with the main body connecting piece (1).

4. The automatic parallel pressure head of claim 1 on a mobile phone display screen bonding device, characterized in that: the main body connecting piece (1) and the stressed pressure head (5) are both made of tungsten steel.

5. The automatic parallel pressure head of claim 1 on a mobile phone display screen bonding device, characterized in that: the spherical central stress point (2) is made of high-strength steel balls.

6. The automatic parallel pressure head of claim 1 on a mobile phone display screen bonding device, characterized in that: the stiffness coefficient of the spring (7) is 10N/m-20N/m.