JP2014133291A - Separation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separation device that can separate a sheet-like body affixed on a precision panel from the precision panel without applying a large load on the precision panel.SOLUTION: A separation device 100 is a device for separating a sheet-like body affixed on a surface of a precision panel from the precision panel. The separation device 100 includes: a blade 120 having a thin-plate like blade body; a panel installation part 110 where the precision panel with the sheet-like body affixed thereon is installed; a blade fixing part 130 where the blade 120 is fixed so that the blade body becomes parallel to the surface of the precision panel installed to the panel installation part; and a feed mechanism 150 for moving at least one of the panel installation part 110 and the blade fixing part 130 in a direction parallel to a surface of the blade body so that the blade 120 advances a portion of an adhesion layer between the precision panel and the sheet-like body.

Description

  The present invention relates to a separation device.

  An increasing number of electrical devices have a liquid crystal touch panel in which a touch panel is attached to a liquid crystal panel. Patent Document 1 discloses a display device with a touch panel including a touch panel and a liquid crystal panel.

JP2012-094120A

  Precision panels such as touch panels and liquid crystal panels are expensive. When a defect is found in the plate attached to the surface of the precision panel, it may be desired to separate the plate from the precision panel and collect the precision panel. In addition, when there is a problem with the precision panel instead of the plate-like body, it may be desired to separate the plate-like body from the precision panel in order to analyze the problem. Here, the “plate-like body” is a plate-like object such as a panel, a sheet, or a film, and is, for example, a protective panel or a protective film attached to the surface of a precision panel. The plate-like body includes a precision panel.

  However, in many cases, the precision panel and the plate-like body are firmly fixed with an adhesive material in order to provide resistance to vibration and impact. For this reason, it is extremely difficult to separate the precision panel and the plate-like body. The precision panel is extremely sensitive to load, so if you try to separate it forcibly, the precision panel will be destroyed and will not withstand reuse, or the defective precision panel will be further destroyed and the cause of the problem will not be known.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a separation device that can separate a precision panel and a plate attached to the precision panel without imposing a large load on the precision panel. And

The separation device of the present invention is a separation device for separating a plate-like body attached to the surface of the precision panel from the precision panel,
A blade having a thin blade,
A panel installation section on which the precision panel to which the plate-like body is attached is installed;
A blade fixing portion to which the blade is fixed so that the blade and the surface of the precision panel installed in the panel installation portion are parallel to each other;
Move at least one of the panel installation portion and the blade fixing portion in a direction parallel to the surface of the blade so that the blade advances the portion of the adhesive layer between the precision panel and the plate-like body. A feed mechanism;
It is characterized by that.

  The cutting edge of the blade may be inclined with respect to the blade so as to form a clearance angle with one of the precision panel and the plate-like body during panel separation.

  With respect to at least one surface of the precision panel and the plate-like body, the precision panel and the plate-like shape are provided so that a clamping pressure applied to the blade sandwiched between the precision panel and the plate-like body is increased. You may provide the pressurization means which applies a compression pressure in the direction which a body approaches.

The blade is a band-shaped blade having a blade edge on the long side,
The pressurizing means may apply a compressive pressure in parallel with the blade edge to a position where the blade edge of the blade in progress through the adhesive layer is located.

The blade is a band-shaped blade having a blade edge on the long side,
The said blade fixing | fixed part may be equipped with the tension | pulling mechanism which pulls the said blade from the both sides of the longitudinal direction of the said blade, or the one side of the longitudinal direction of the said blade.

The blade is a band-shaped blade having a blade edge on one of the long sides,
The tension mechanism is configured to be capable of pulling the blade in a direction inclined to the blade side with respect to the longitudinal direction of the blade so that a tensile force applied to the blade edge side is larger than a tensile force applied to the blade side on the opposite side. May be.

  A heating means for applying heat to the blade may be provided.

The blade is a band-shaped blade that generates heat when an electric current flows, a blade edge is formed on one of the long sides, and the width in the short direction of the blade is shortened on the other of the long sides to reduce electric resistance. A recess to be raised is formed,
The heating means may cause the blade to generate heat by passing an electric current through the blade.

The feeding mechanism is
A moving body that moves linearly by the power of the motor;
An elastic body that directly or indirectly connects one of the panel installation part and the blade fixing part and the moving body;
One of the panel installation part and the blade fixing part may be moved by the propulsive force of the moving body transmitted through the elastic body.

  ADVANTAGE OF THE INVENTION According to this invention, the separation apparatus which can isolate | separate a precision panel and the plate-shaped object affixed on the precision panel can be provided, without applying a big load to a precision panel.

It is a perspective view of the separation device concerning an embodiment of the invention. It is a figure for demonstrating the liquid crystal touch panel isolate | separated with a separation apparatus, (A) is a perspective view of a liquid crystal touch panel, (B) is an enlarged view of the side surface of a liquid crystal touch panel. It is a figure for demonstrating a panel installation part, (A)-(C) is a figure which shows a mode that a panel installation part moves to a back direction, respectively. It is a figure for demonstrating the cutter used with a separator, (A) is a top view of a cutter, (B) is a cross section of a cutter. It is a figure for demonstrating a blade fixing | fixed part, (A) is a perspective view of the isolation | separation apparatus which removed the pressurization mechanism, (B) is a top view of the isolation | separation apparatus which removed the pressurization mechanism. It is a figure for demonstrating a cutter fixing part, (A) is an exploded view of a cutter fixing part, (B) is a perspective view of the cutter fixing part to which the cutter was fixed. It is a figure for demonstrating a tension mechanism, (A) is a perspective view of the tension mechanism with which the cutter was fixed, (B) is a top view of the tension mechanism with which the cutter was fixed. It is a figure for demonstrating the effect of a tension | pulling mechanism, (A) is a figure which shows a mode that a cutter cuts with the pressure from an adhesion layer, when not using a pulling mechanism, (B) is a cutter with bending. It is a figure which shows a mode that it turned. It is a figure for demonstrating a feed mechanism, (A) is a side view of the separation apparatus which removed the left rail, the left blade fixing | fixed part, and the left support member, (B) is shown to FIG. 9 (A). A sectional view taken along line AA ′, and FIG. 9C is a sectional view taken along line BB ′ shown in FIG. It is a figure for demonstrating a heating apparatus. It is a figure for demonstrating a pressurization mechanism, (A) is a top view of the pressurization mechanism installed in the blade fixing | fixed part, (B) is sectional drawing of the AA 'line shown to FIG. 11 (A), (C) is a perspective view of the pressurization mechanism installed in the blade fixing part. It is a figure for demonstrating operation | movement of a separator, (A)-(C) is a figure which shows a mode that a panel installation part moves, respectively. It is a figure which shows a mode that a cutter advances an adhesion layer, (A) is an enlarged view of the blade-tip part of the cutter which advances an adhesion layer, (B) is a figure for demonstrating the separation area | region which can be made ahead of a cutter, C) is a view showing a state where the relief angle is sharpened by the pressurizer. It is a figure which shows a mode that the tension | pulling mechanism was installed only in the one side of a cutter.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  A separation device according to an embodiment of the present invention is a device for separating a plate-like body attached to a precision panel from the precision panel. Here, the “precision panel” is a panel composed of precision components (for example, a deflection filter, a glass substrate, a liquid crystal, a conductive film, an LED (Light Emitting Diode), etc.), for example, a liquid crystal panel or a touch panel. That is.

  Hereinafter, the separation device 100 according to the embodiment of the present invention will be described by taking, for example, the separation device 100 having an appearance as shown in FIG. As shown in FIG. 2A, the liquid crystal touch panel 200 to be separated is a precision panel (plate-like body) in which two precision panels of the touch panel 210 and the liquid crystal panel 220 are bonded with an adhesive material. An adhesive layer 230 is formed between the two precision panels as shown in FIG.

  As shown in FIG. 1, the separation device 100 includes a panel installation unit 110, a blade 120, a blade fixing unit 130, a tension mechanism 140, a feed mechanism 150, a heating device 160, and a pressure mechanism 170. Is done. In the following description, the left side is referred to as “front direction” and the right side is referred to as “rear direction” in order to facilitate understanding. Further, the left side in the forward direction is referred to as “left direction”, and the right side is referred to as “right direction”.

  Panel installation unit 110 is an installation table on which liquid crystal touch panel 200 is placed. Two rails (a rail 182 and a rail 183) are arranged in parallel on the base 181. The panel installation unit 110 is installed on the two rails so as to be slidable in the front-rear direction. As shown in FIG. 3A, two protrusions (protrusion 111 and protrusion 112) are formed at the end of panel installation portion 110. The liquid crystal touch panel 200 is placed so that the short sides are in contact with these two protrusions. The panel installation unit 110 slowly slides backward as shown in FIGS. 3B and 3C with the liquid crystal touch panel 200 placed thereon.

  As shown in FIG. 4A, the blade 120 is a strip-shaped blade having a thin blade 121 and having a blade edge 122 on one of the long sides (hereinafter referred to as “the blade edge side”). A concave portion 123 and a concave portion 124 are formed on the other of the long sides (hereinafter referred to as “blade side”), and the width of the portion where the concave portion is formed (w1 shown in FIG. 4A) is a concave portion. Is shorter than the width (w2 shown in FIG. 4A) of the portion where no is formed. Therefore, even if an electric current is passed from one end to the other end in the longitudinal direction of the blade 120, at a portion where a recess is formed (hereinafter referred to as “a recess forming portion”), a portion where no recess is formed ( Hereinafter, it is more difficult to pass the current than “a non-recessed portion” (that is, the electric resistance is high). As a result, when a current is passed through the blade 120 using the heating device 160 described later, the amount of heat generated in the recessed portion forming portion is larger than that in the recessed portion non-formed portion. When the touch panel 210 and the liquid crystal panel 220 are separated from each other, the cutting edge 122 of the blade 120 is formed with respect to the blade 121 so as to form a clearance angle R with one of the two panels, for example, as shown in FIG. Inclined. The blade 120 is fixed to the blade fixing portion 130 so that the blade 121 is parallel to the surface of the liquid crystal touch panel 200.

  FIGS. 5A and 5B are obtained by removing the pressurizing mechanism 170 from the separating device 100 in order to make the blade fixing unit 130 easy to see. As shown in FIG. 5A, the blade fixing part 130 includes a left fixing part 131 and a right fixing part 132. As shown in FIG. 6A, the left fixing portion 131 includes a clamping member 131a and a clamping member 131b. The right fixing portion 132 includes a sandwiching member 132a and a sandwiching member 132b. As shown in FIG. 6B, the left fixing portion 131 and the right fixing portion 132 each hold both ends of the blade 120 with two holding members.

  The tension mechanism 140 is a mechanism for applying a tensile force to the blade 120 in the longitudinal direction. As illustrated in FIG. 7A, the tension mechanism 140 includes a tension member 141 and a tension member 142. The tension member 141 is installed on the left side surface of the left fixing portion 131, and the tension member 142 is installed on the right side surface of the right fixing portion 132. Both ends of the blade 120 are fixed to the tension member 141 and the tension member 142.

  The tension member 141 and the tension member 142 are each formed with a screw hole penetrating in the left-right direction. A screw 141a, a screw 141b, a screw 142a, and a screw 142b are screwed into the screw holes, respectively. It is possible to apply a tensile force to the blade 120 by screwing these screws. Two screw holes are formed on the front and rear sides of the blade 120. Therefore, by inserting more screws on the blade side than screws on the blade side, it is possible to apply a greater tensile force on the blade edge side than on the blade side, as shown in FIG. By carrying out like this, the bending to the blade side of the blade 120 as shown to FIG. 8 (A) which arises by the pressure from the adhesion layer at the time of panel separation can be suppressed. As a result, the undulation of the blade edge 122 as shown in FIG.

  The feed mechanism 150 is a mechanism for moving the panel installation unit 110 backward. As shown in FIG. 9A, the feed mechanism 150 includes a motor 151, a main shaft 152, a moving body 153, and an elastic body 154.

  The motor 151 includes an electric motor such as a DC motor or a stepping motor. The shaft of the motor 151 is fixed to one end of the main shaft 152. The motor 151 rotates the main shaft 152 when energized.

  The main shaft 152 is composed of a rod-shaped body having a thread on the peripheral surface. The main shaft 152 is installed between the rail 182 and the rail 183 with the axial direction directed in the front-rear direction.

  The moving body 153 is for giving a driving force to the panel installation unit 110. As shown in FIG. 9B, the movable body 153 is installed on the rail 182 and the rail 183 so as to be slidable in the front-rear direction. The moving body 153 has a through hole penetrating in the front-rear direction. A thread groove is formed on the peripheral surface of the through hole. As shown in FIG. 9C, the thread groove is screwed with the thread of the main shaft 152. The moving body 153 slowly slides backward as the main shaft 152 rotates.

  The elastic body 154 is a spring that transmits the driving force of the moving body 153 to the panel installation unit 110. As shown in FIG. 9A, one end of the elastic body 154 is connected to the moving body 153, and the other end is connected to the panel installation unit 110. The elastic body 154 equalizes the non-uniformity of the propulsive force of the moving body 153 caused by the fine torque of the motor 151 and smoothly moves the panel installation unit 110.

  The heating device 160 is a device for heating the blade 120. The heating device 160 is constituted by a DC power supply device that supplies current to the blade 120. The blade 120 is made of a material that generates heat when an electric current flows. As shown in FIG. 10, the heating device 160 applies an electric current to the blade 120 to heat the blade 120 to about 50 ° C. to 90 ° C. As described above, since the width in the short direction of the blade 120 is smaller in the concave portion forming portion than in the concave portion non-forming portion, the calorific value is larger in the concave portion forming portion than in the non-concave forming portion.

  The pressurizing mechanism 170 is a mechanism for applying pressure to the liquid crystal touch panel 200 from above so that the pressure between the touch panel 210 and the blade 120 of the liquid crystal panel 220 increases. As shown in FIG. 11A, the pressurizing mechanism 170 includes a roller 171, a support member 172, and a support member 173. The roller 171 is a cylindrical roller, and is rotatably fixed to the support member 172 and the support member 173. As illustrated in FIG. 11B, the roller 171 is installed in parallel with the blade edge 122 on the upper edge of the blade edge 122 of the blade 120. As shown in FIG. 11C, the support member 172 and the support member 173 are installed on the sandwiching member 131b and the sandwiching member 132b, respectively. Each of the support member 172 and the support member 173 is formed with a screw hole penetrating in the vertical direction, and a screw is screwed into the screw hole. The pressure applied to the liquid crystal touch panel 200 can be adjusted by adjusting the screwing amount of the screwed screw.

  Next, the operation of the separation apparatus 100 having such a configuration will be described.

  When power is turned on to the heating device 160, the heating device 160 causes a current to flow through the blade 120 to cause the blade 120 to generate heat. When the motor 151 is turned on, the motor 151 rotates the spindle 152 according to the control of a processor (not shown).

  When the main shaft 152 rotates, the moving body 153 moves linearly in the backward direction. The panel installation part 110 is pulled by the moving body 153 and moves backward.

  The position of the blade 120 is adjusted so that the blade edge 122 is at the height of the adhesive layer 230. The cutter 120 bites into the adhesive layer 230 of the liquid crystal touch panel 200 as shown in FIG. The blade 120 advances the portion of the adhesive layer 230 as shown in FIGS. 12B and 12C while melting the adhesive material by heat, and finally separates the two panels.

  The blade edge 122 of the blade 120 is inclined with respect to the blade 121 so as to form a clearance angle R with one of the two panels of the liquid crystal touch panel 200. Therefore, as shown in FIG. 13A, the two panels are separated with the adhesive layer 230 biased to one panel.

  According to the present embodiment, since the two panels are separated using a thin blade, the two panels can be separated without applying a large load.

  In addition, when the liquid crystal touch panel 200 is sliced using a blade whose blade edge is not inclined, as shown in FIG. 8 (B), the adhesive layer 230 is separated non-uniformly vertically, and the blade edge is swelled. This swell gives a strong load to the panel surface and causes “stain” and “smear” on the panel surface. However, the blade 120 of this embodiment is separated with the adhesive layer 230 biased to one panel as shown in FIG. 13A because the blade edge 122 is inclined with respect to the blade 121. . Therefore, as shown in FIG. 8B, the blade 120 is less undulated, so that a large load is not applied to the panel surface.

  In addition, the blade thickness d of the blade whose blade edge is inclined is larger than that of the blade whose blade edge is not inclined. For this reason, when the panel is separated using the blade 120 with the blade edge 122 inclined, as shown in FIG. 13B, an area where the two panels are separated in front of the blade edge 122 (hereinafter referred to as a “spaced area”). Can do. In this separated region, the adhesive layer 230 greatly expands in the vertical direction, and a strong load is applied to the panel surface by the contraction force. As a result, the panel surface is stained and smeared. However, in this embodiment, as shown in FIG. 13C, the panel is separated while being pressed by the roller 171, and thus the adhesive layer 230 is prevented from extending vertically. As a result, it becomes difficult for the panel surface to be stained and blurred.

  Moreover, since the roller 171 presses the panel from the upper part of the blade edge 122, the blade edge 122 and one panel are firmly adhered to each other. Moreover, the clearance angle R of the blade edge 122 becomes sharp due to the pressure from the panel. Therefore, the adhesive layer 230 is peeled cleanly from the lower panel, and dispersion of the adhesive layer 230 in the vertical direction is reduced. As a result, the undulation of the blade 120 is reduced and the load applied to the panel surface is reduced.

  Usually, an acrylic adhesive is used for adhesion between the liquid crystal panel and the touch panel. Acrylic adhesives become softer when temperature is applied. In the present embodiment, since the heating device 160 that heats the blade 120 is provided, the panel can be separated while the adhesive layer 230 is softened by heat. Therefore, the load applied to the panel can be reduced.

  In addition, when heating the blade 120, the temperature of the portion of the blade 120 that contacts the adhesive layer 230 or the panel is partially lowered due to heat absorbed by the adhesive layer 230 or the panel. Since the object expands and contracts depending on the temperature, if the temperature is not uniform, the blade 120 is bent, and as a result, a load is applied to the panel. However, in the present embodiment, since the concave portion for increasing the electric resistance is formed in the blade 120 in consideration of heat absorption, the temperature of the blade 120 becomes uniform when the panel is separated. As a result, the bending of the blade is suppressed and the load applied to the panel is reduced.

  Moreover, the panel installation part 110 of this Embodiment is given a driving force by an electric motor. Electric motors have delicate torque strengths. This torque level causes a slight change in the contact pressure between the blade 120 and the panel, and as a result, a strong load is applied to the panel. However, in the present embodiment, panel installation unit 110 is given a propulsive force through elastic body 154. Therefore, the strength of the torque of the electric motor is absorbed, and the panel installation unit 110 moves smoothly. As a result, the load applied to the panel can be reduced.

  The above-described embodiment is an example, and various changes and applications are possible.

  For example, in the above-described embodiment, the panel installation unit 110 is configured to move in order to separate two panels, but the blade fixing unit 130 may be configured to move.

  In the above-described embodiment, the liquid crystal touch panel 200 is placed so that the touch panel 210 is on the upper side, but the liquid crystal touch panel 200 may be placed so that the liquid crystal panel 220 is on the upper side. In order to reliably recover the normal panel, the defective panel may come to the lower side where the blade edge 122 is in contact and pressure is easily applied.

  In the above-described embodiment, the blade 120 is configured to be pulled from both sides, but may be configured to be pulled only from one side. For example, as shown in FIG. 14, the left end of the blade 120 is completely fixed so as not to come out of the left fixing portion 131, and is pulled by the tension member 142 from the right end of the blade 120.

  Further, the surface of the liquid crystal touch panel 200 pressed by the roller 171 is not limited to the upper part of the blade edge 122. The upper part of the blade 121 may be sufficient, and the upper part of a separation | spacing area | region may be sufficient.

  In the above-described embodiment, the separation apparatus 100 separates the touch panel 210 and the liquid crystal panel 220 of the liquid crystal touch panel 200, but the separation target of the separation apparatus 100 is limited to the touch panel 210 and the liquid crystal panel 220 of the liquid crystal touch panel 200. Not. For example, the separating apparatus 100 includes a plate-like body (for example, a protection panel, a protection sheet, a protection sheet) other than the precision panel attached to the surface of a precision panel (for example, the liquid crystal touch panel 200, the touch panel 210, the liquid crystal panel 220, etc.) with an adhesive. Film etc.) may be separated from the precision panel.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Separator 110 Panel installation part 111, 112 Protrusion 120 Blade 121 Blade 122 Blade 123, 124 Recess 130 Blade fixing part 131 Left fixing part 132 Right fixing part 131a, 131b, 132a, 132b Holding member 140 Tensioning mechanism 141, 142 Tensioning member 141a, 141b, 142a, 142b Screw 150 Feed mechanism 151 Motor 152 Spindle 153 Moving body 154 Elastic body 160 Heating device 170 Pressure mechanism 171 Rollers 172, 173 Support member 181 Base 182, 183 Rail 200 Liquid crystal touch panel 210 Touch panel 220 Liquid crystal panel 230 Adhesive layer

Claims (9)

A separation device for separating a plate attached to the surface of a precision panel from a precision panel,
A blade having a thin blade,
A panel installation section on which the precision panel to which the plate-like body is attached is installed;
A blade fixing portion to which the blade is fixed so that the blade and the surface of the precision panel installed in the panel installation portion are parallel to each other;
Move at least one of the panel installation portion and the blade fixing portion in a direction parallel to the surface of the blade so that the blade advances the portion of the adhesive layer between the precision panel and the plate-like body. A feed mechanism;
Separation device characterized by that. The cutting edge of the blade is inclined with respect to the blade so as to form a clearance angle with one of the precision panel and the plate-like body during panel separation.
The separation apparatus according to claim 1, wherein: With respect to at least one surface of the precision panel and the plate-like body, the precision panel and the plate-like shape are provided so that a clamping pressure applied to the blade sandwiched between the precision panel and the plate-like body is increased. A pressurizing means for applying a compressive pressure in a direction in which the body approaches.
The separation apparatus according to claim 1 or 2, characterized in that. The blade is a band-shaped blade having a blade edge on the long side,
The pressurizing means applies a compressive pressure in parallel with the blade edge at a position where the blade edge of the blade in progress through the adhesive layer is located.
The separation apparatus according to claim 3. The blade is a band-shaped blade having a blade edge on the long side,
The cutter fixing portion includes a tension mechanism that pulls the cutter from both sides of the cutter in the longitudinal direction or from one side of the cutter in the longitudinal direction.
The separation apparatus according to any one of claims 1 to 4, wherein the separation apparatus is characterized in that The blade is a band-shaped blade having a blade edge on one of the long sides,
The tension mechanism is configured to be capable of pulling the blade in a direction inclined to the blade side with respect to the longitudinal direction of the blade so that a tensile force applied to the blade edge side is larger than a tensile force applied to the blade side on the opposite side. Being
The separation device according to claim 5. Heating means for applying heat to the blade,
The separation device according to any one of claims 1 to 6, wherein The blade is a band-shaped blade that generates heat when an electric current flows, a blade edge is formed on one of the long sides, and the width in the short direction of the blade is shortened on the other of the long sides to reduce electric resistance. A recess to be raised is formed,
The heating means causes the blade to generate heat by passing an electric current through the blade;
The separation apparatus according to claim 7. The feeding mechanism is
A moving body that moves linearly by the power of the motor;
An elastic body that directly or indirectly connects one of the panel installation part and the blade fixing part and the moving body;
One of the panel installation part and the blade fixing part moves by the propulsive force of the moving body transmitted through the elastic body.
The separation device according to any one of claims 1 to 8, wherein

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