CN101934531A - Separation equipment - Google Patents

Abstract

The invention provides a separation apparatus suitable for separating a panel formed by bonding two substrates by an adhesive layer, comprising: a machine table; the positioning device is arranged on the machine table and comprises two vertical adsorption platforms which are arranged oppositely; the propelling device is connected with the positioning device and used for propelling the positioning device to move on the machine table; the cutting device is arranged on the machine table and comprises a cutting line which is vertically arranged and used for cutting the adhesive layer; and the monitoring device is arranged on the machine table, is connected with the propelling device and is used for monitoring the working state of the cutting device and providing correction data for the propelling device. The invention has the advantages that the double-adsorption platform can reduce the deformation of the panel, the vertical cutting line can fully wet the solvent to facilitate cutting, and the monitoring device feeds back the working state in real time to correct the cutting position and avoid damaging the panel, thereby greatly reducing the reject ratio of the panel caused by careless cutting.

Description

a separation device

technical field

The present invention relates to a separating device, and in particular to a separating device for separating panels formed by bonding two substrates with an adhesive layer.

Background technique

With the increasing number of multimedia information inquiries, people are talking about touch screens more and more, because touch screens are not only suitable for multimedia information inquiries, but also have many advantages such as durability, fast response, space saving, and easy communication. With this technology, the user can operate the host by lightly touching the pattern or text on the display screen with his finger, thus making the human-computer interaction more straightforward. This technology greatly facilitates those users who do not understand computer operation.

Generally speaking, the touch screen is that the display substrate and the touch substrate are bonded together, and the middle is bonded with UV (Ultraviolet Rays) glue. At present, the common difficulty faced by touch screen manufacturers in the production process is a high defective rate. In the state of low yield rate, unqualified touch screens must be reworked. The small-sized touch screen (less than 10 inches) can barely cut UV glue with a very thin line by hand. However, in the process of rework, careless cutting may scratch the substrate or even lead to broken pieces. And when the size of the touch screen is too large (greater than 10 inches), heavy work cannot be carried out by manpower.

Therefore, the industry currently uses equipment for automatically cutting UV glue, but it can only cut glue thickness > 300 microns. If the thickness of UV glue is less than 300 microns, the equipment currently used cannot meet the precision requirements. However, subsequent new product specifications and cost control benefits will reduce the glue thickness to less than 175 microns. Therefore, the development of new separation equipment to meet product needs has become an urgent problem to be solved in the industry.

Contents of the invention

In view of this, one aspect of the present invention is to provide a separation device, which is suitable for separating panels formed by bonding two substrates with an adhesive layer, including: a machine platform; a positioning device, which is arranged on the machine platform, comprising Two vertical and opposite adsorption platforms; a propulsion device connected with the positioning device to push the positioning device to move on the machine table; a cutting device arranged on the machine table, including a vertical cutting line for cutting the adhesive layer; and a monitoring device, which is set on the machine table and connected with the propulsion device, to monitor the working state of the cutting device and provide a correction data for the propulsion device.

According to an embodiment of the present invention, the two adsorption platforms use vacuum to adsorb the first substrate and the second substrate, and the adsorption forces generated by the two adsorption platforms on the first substrate and the second substrate are the same in magnitude and opposite in direction.

According to an embodiment of the present invention, the propulsion device includes a plurality of slide rails and a mechanical arm.

According to an embodiment of the present invention, the cutting device includes a driver for driving the cutting wire to perform cutting.

According to an embodiment of the present invention, the cutting wire is a plastic wire made of polyacrylo cyanide (PolyAcrylo Nitrile, PAN), polyamide (Nylon), polyethylene terephthalate (Poly Ethylene Terephthalate, PET), polypropylene ( One of Polypro Pylene; PP), Polyurethane (Polyurethane, PU), Triacetyl Cellulose (TAC).

According to an embodiment of the present invention, the cutting line is impregnated with a solvent to assist cutting.

According to an embodiment of the present invention, the monitoring device is a Charge-coupled Device (CCD), that is, a CCD image sensor.

According to an embodiment of the present invention, the thickness of the adhesive layer is about 175 microns to 300 microns.

According to an embodiment of the present invention, the correction data is the position of the middle plane of the panel.

According to an embodiment of the present invention, the adhesive layer is ultraviolet curable adhesive (UV adhesive).

The advantage of applying the present invention is that compared with a single adsorption platform, the use of double adsorption platforms can reduce panel deformation, and the vertical cutting line can fully wet the solvent due to gravity, making cutting more effective. The position of the panel is fed back in real time through the monitoring device , so that the propulsion device corrects the propulsion position in real time, so as to keep the cutting position in the adhesive layer and avoid damage to the panel. Using fully automatic mechanical equipment to cut and separate the panel can improve work efficiency and at the same time reduce the defect rate caused by inadvertent cutting Greatly reduced.

Description of drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, the detailed description of the accompanying drawings is as follows:

Fig. 1 is the schematic diagram of existing separation equipment;

Fig. 2 is the side view of existing separation equipment;

Figure 3 is a schematic diagram of an embodiment of a separation device according to the present invention; and

Figure 4 is a top view of a separation device according to the invention.

Detailed ways

The following will clearly illustrate the spirit of the present invention with the accompanying drawings and detailed descriptions. After understanding the preferred embodiments of the present invention, any person of ordinary skill in the art can make changes and modifications based on the technology disclosed in the present invention, and without departing from the spirit and scope of the present invention.

Please refer to Fig. 1, which is a schematic diagram of an existing separation device. The panel 102 includes a first substrate 104 and a second substrate 106 , which are bonded together by an ultraviolet curing glue (hereinafter referred to as UV glue) as an adhesive layer 118 . Existing separation equipment uses a single-side positioning device, that is, a vacuum adsorption platform 100 is used to adsorb the first substrate 104 on one side of the panel 102 . There are a plurality of adsorption holes 108 on the vacuum adsorption platform 100 , and the panels 102 located at the adsorption holes 108 are adsorbed on the vacuum adsorption platform 100 due to the adsorption force generated by the vacuum. The vacuum adsorption platform 100 slides on the two guide rails 110 to drive the panel 102 to move linearly. The cutting device is arranged in the movement route of the vacuum adsorption platform 100 , and uses the steering wheel 114 as a driver to drive the cutting line 116 for cutting. The cutting line 116 is arranged horizontally, which is perpendicular to the guide rail 110 , that is, perpendicular to the moving route of the vacuum adsorption platform 100 . When the vacuum adsorption platform 100 drives the panel 102 to move to the cutting line 116, since the cutting line 116 is located in the plane where the adhesive layer 118 formed by UV glue is located in the vertical direction, as the vacuum adsorption platform 100 continuously moves , the cutting line 116 cuts the passed adhesive layer 118 , and when the cutting line 116 completely cuts the adhesive layer 118 , the first substrate 104 and the second substrate 106 can be separated.

Next please refer to FIG. 2 , which is a side view of an existing separation device. Because the existing separation equipment adopts a horizontal cutting method, as shown in Figure 2, when the panel 102 is adsorbed by the vacuum adsorption platform 100, due to the effect of the adsorption force, the panel 102 at the adsorption hole 108 will be deformed . In addition, when the vacuum adsorption platform 100 moves on the horizontal guide rail 110, there will be a small amount of ups and downs in the vertical direction. When the thickness of the adhesive layer 118 is small, such as 175 microns, the cutting trace of the cutting line 116 is shown in the figure As shown by the dotted line, it is obvious that the cutting line will cut to the second substrate 106 at this time. In addition, the cutting line 116 needs to be infiltrated with a solvent to assist cutting before cutting. However, since the cutting line 116 is set horizontally, it is difficult for the solvent to evenly distribute on the entire cutting line 116 due to the effect of gravity, which affects cutting.

Next, please refer to FIG. 3 , which is a schematic diagram of an embodiment of the separation device according to the present invention. Two vertical vacuum adsorption platforms 100 are disposed opposite to each other on the machine 300 as a positioning device, and the first substrate 104 and the second substrate 106 of the panel 102 are respectively adsorbed on one vacuum adsorption platform 100 . In this embodiment, the first substrate 104 is a substrate that realizes a touch function, and the second substrate 106 is a substrate that realizes a display function. Since the suction holes 108 on the two vertical vacuum suction platforms 100 have the same size and symmetrical positions, the suction forces generated by them have the same magnitude and opposite directions, so the force on both sides of the panel 102 is symmetrical without deformation. The two vacuum suction platforms 100 are moved along the guide rail 110 on the machine platform 300 by a propelling device, such as a mechanical arm. The panels 102 sandwiched by the vacuum adsorption platforms 100 on both sides therefore move with the vacuum adsorption platforms 100 . The cutting device includes a vertically arranged cutting line 116 and a steering wheel 114 as its driver arranged in the movement path of the panel 102 . Cutting line 116 is plastic wire rod, and its material is polyacrylonitrile (Poly Acrylo Nitrile, PAN), polyamide (Nylon), polyethylene terephthalate (Poly Ethylene Terephthalate, PET), polypropylene (Polypro Pylene; PP ), polyurethane (Polyurethane, PU), triacetyl cellulose (Triacetyl Cellulose, TAC) one of them. The cutting line 116 is impregnated with a solvent to assist cutting during cutting. Since the cutting line 116 is arranged vertically, the solvent flows down along the cutting line 116 due to the action of gravity, fully and evenly infiltrating the cutting line 116 . When the vacuum adsorption platform 100 drives the panel 102 to move to the cutting line 116, the cutting line 116 is located in the plane where the adhesive layer 118 formed by UV glue is located, so along with the continuous movement of the vacuum adsorption platform 100, the cutting line 116 will The passing adhesive layer 118 is cut, and when the cutting line 116 cuts the adhesive layer 118 completely, the first substrate 104 and the second substrate 106 can be separated. Since the vacuum suction platform 100 and the cutting line 116 are vertically arranged, the ups and downs caused by the unevenness of the guide rail 110 will not affect the cutting of the cutting line 116 . In addition, in order to make the cutting more accurate, the monitoring device—Charge-coupled Device (CCD), hereinafter referred to as CCD image sensor, is connected to the propulsion device to monitor the working status of the cutting device and provide correction data for the propulsion device.

To further illustrate the function of the CCD image sensor, please refer to FIG. 4 , which is a top view of the separation device according to the present invention. The first substrate 104 and the second substrate 106 of the panel 102 are respectively adsorbed on a vacuum adsorption platform 100 . Since the suction holes 108 on the two vertical vacuum suction platforms 100 have the same size and symmetrical positions, the suction forces generated by them have the same magnitude and opposite directions, so the force on both sides of the panel 102 is symmetrical without deformation. During the cutting process, the CCD image sensor sends the position of the middle plane of the panel 102 as correction data to the propulsion device, such as a mechanical arm. Adjust so that the cutting line 116 is always cut in the adhesive layer 118 , and the cutting trace is shown as a dotted line in FIG. 4 , so as to ensure that the cutting line will not scratch the first substrate 104 or the second substrate 106 .

It is worth noting that there is a host point reserved on the machine 300, which can be connected with the computer integrated manufacturing (CIM) system to realize inline operation.

Using the separation equipment provided by the present invention, due to the use of double adsorption platforms, panel deformation can be reduced compared with single adsorption platforms, and the vertical cutting line can fully wet the solvent due to gravity, making the cutting more effective. Feedback the position of the panel, so that the propulsion device can correct the propulsion position in real time, so as to keep the cutting position in the adhesive layer and avoid damage to the panel. The use of fully automatic mechanical equipment to cut and separate the panel can improve work efficiency and at the same time prevent accidental cutting The resulting defect rate is greatly reduced.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Any person skilled in the art may make various modifications and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of the present invention should be defined by the scope of the appended patent application.

Claims (10)

1. A separation device, suitable for separating a panel, the panel is formed by bonding a first substrate and a second substrate with an adhesive layer, it is characterized in that the device comprises: one machine; A positioning device, arranged on the machine platform, includes two vertical and opposite adsorption platforms; A propulsion device, connected with the positioning device, pushes the positioning device to move on the machine table; A cutting device, arranged on the machine table, includes a vertically arranged cutting line for cutting the adhesive layer; and A monitoring device is arranged on the machine table and connected with the propulsion device to monitor the working state of the cutting device and provide correction data for the propulsion device. 2. The separation device according to claim 1, wherein the two adsorption platforms use vacuum to adsorb the first substrate and the second substrate, which produces The adsorption forces are the same in magnitude and opposite in direction. 3. The separating device according to claim 1, wherein the propulsion device comprises a plurality of sliding rails and a mechanical arm. 4. The separation device according to claim 1, wherein the cutting device comprises a driver to drive the cutting wire to perform cutting. 5. separation equipment according to claim 1, is characterized in that, described cutting wire is plastic wire rod, and its material is polypropylene cyanide (Poly Acrylo Nitrile, PAN), polyamide (Nylon), polyethylene terephthalate One of Diester (Poly Ethylene Terephthalate, PET), Polypropylene (Polypro Pylene; PP), Polyurethane (PU), Triacetyl Cellulose (TAC). 6. The separation device according to claim 1, wherein the cutting wire is impregnated with a solvent to assist cutting. 7. separation device according to claim 1, is characterized in that, described monitoring device is charge-coupled device (Charge-coupled Device, CCD), i.e. CCD image sensor. 8. The separating device of claim 1, wherein the adhesive layer has a thickness of about 175 microns to 300 microns. 9. Separating apparatus according to claim 1, characterized in that the correction data is the position of the median plane of the panel. 10. The separating device according to claim 1, characterized in that, the adhesive layer is an ultraviolet light curing glue (UV glue).

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