JP2002137225A - Apparatus and method for separating pasted article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and a method for separating a pasted article capable of contributing to a material recycling of a plastic article by completely separating the pasted article adhered to the plastic article therefrom. SOLUTION: The apparatus 1 for separating the pasted article 40 adhered to the plastic article RC separates the article 40 from the plastic article RC. The apparatus 1 comprises a holder 12 for holding the plastic article, a heater 14 for heating a periphery of the pasted article of the held article, and a punching unit 16 for punching the periphery of the pasted article of the heated plastic article.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for separating a pasted product from a plastic product, which separates the pasted product from the plastic product.

[0002]

2. Description of the Related Art As an example of electronic equipment, a television receiver, a display monitor of a computer, and the like are exemplified. A television receiver or a display monitor of a computer has a plastic housing, in which a CRT (cathode ray tube) is accommodated, for example. When recycling used television receivers and display monitors, it is necessary to sort the plastic casings according to the type of plastic. Attached objects such as a quality label and a nameplate are attached to a plastic housing, for example, to a rear cover of a housing of a television receiver or a display monitor. This pasted object is made of paper or a plastic material different from the plastic material of the housing. For this reason, when material recycling a plastic housing, the attached material becomes an impurity, so the attached material must be separated from the plastic housing.

[0003]

This type of affixed object is attached to a plastic housing using an adhesive. Since the pasted object and this adhesive become impurities in the plastic housing, it is necessary to remove the pasted object and the adhesive. The technique of mechanically peeling it down is taken. However, when the paste is mechanically peeled off at room temperature in this way, the paste may be broken in the middle and cannot be completely removed, and the adhesive may remain on the housing side. . Therefore, when the surface of the attached object is to be peeled off by heating, the adhesive often remains on the plastic housing side, which is a problem because the plastic housing is subjected to material recycling.

Accordingly, the present invention solves the above-mentioned problems, and a paste that can completely separate the paste and the adhesive stuck to the plastic article from the plastic article, thereby contributing to material recycling of the plastic article. It is an object of the present invention to provide a separation apparatus and a method for separating an attached object.

[0005]

According to the first aspect of the present invention, there is provided an apparatus for separating a pasted object from a plastic object, the object being attached to a plastic object, wherein the holding device holds the plastic object. Part, a heating unit that heats the peripheral part of the pasted object of the held plastic article, and a punching operation unit that punches out the peripheral part of the pasted object of the heated plastic article. It is a device for separating a sticking object.

According to the first aspect, the holding section holds the plastic article. The heating unit heats a peripheral portion of the held plastic article. After that, the punching operation part,
Punch out the area around the heated plastic product. Thereby, the pasted object and its adhesive can be punched out from the peripheral portion of the pasted object together with a part of the plastic article, so that the pasted object and its adhesive are completely separated without being left on the plastic article side. be able to. From this, the plastic product can be completely recycled without any impurities when the material is recycled thereafter.

According to a second aspect of the present invention, in the apparatus for separating an affixed product according to the first aspect, the holding section holds the plastic article on the plastic article while holding the plastic article. It is free to move in the direction perpendicular to it. According to the second aspect, the holding section is movable in a direction orthogonal to the punching direction with the plastic article placed and held. Thereby, the pasted object of the plastic article can be positioned corresponding to the heating section and the punching operation section.

According to a third aspect of the present invention, in the apparatus for separating an adhered object according to the first aspect, the heating section has a far-infrared heater.

According to a fourth aspect of the present invention, in the device for separating a pasted object according to the third aspect, the punching section includes a cutting tool, a die having a hole for inserting the cutting tool, and An actuator for moving into the hole and punching a peripheral portion of the plastic article; According to the fourth aspect, by operating the actuator, the blade can be moved into the hole of the die and the peripheral portion of the plastic article can be punched.

According to a fifth aspect of the present invention, in the apparatus for separating an adhered object according to the fourth aspect, the far-infrared heater of the heating unit is located around the blade with the blade as a center. The blade is exposed in the direction toward the worker. According to the fifth aspect, the far-infrared heater of the heating unit is located around the blade centering on the blade, but the blade is exposed in the direction toward the worker. This allows the operator to accurately punch out the peripheral portion of the plastic product attachment portion while directly looking at the blade.

[0011] The invention according to claim 6 is a method for separating a pasted object that separates an adhered object pasted on a plastic item from the plastic item, and a holding step of holding the plastic item on a holding portion; A heating step of heating a peripheral portion of the pasted object of the plastic article held by a heating unit, and a punching operation step of punching a peripheral portion of the pasted object of the heated plastic article. This is the method of separating the attachment. In claim 6, the holding section holds the plastic article. The heating unit heats a peripheral portion of the held plastic article. Thereafter, a punching operation section punches out a peripheral portion of the heated plastic article.
Thereby, the pasted object and its adhesive can be punched out from the peripheral portion of the pasted object together with a part of the plastic article, so that the pasted object and its adhesive are completely separated without being left on the plastic article side. be able to. From this, the plastic article can be completely recycled without any impurities when the material is recycled thereafter.

According to a seventh aspect of the present invention, in the method for separating an object to be stuck according to the sixth aspect, the holding section holds the plastic article on the plastic article while holding the plastic article. It is free to move in the direction perpendicular to it. According to the seventh aspect, the holding section is movable in a direction perpendicular to the punching direction with the plastic article placed and held. Thereby, the pasted object of the plastic article can be positioned corresponding to the heating section and the punching operation section.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing a preferred embodiment of an apparatus for separating a pasted object according to the present invention, and FIG.
FIG. 3 is a side view of the separation device. FIG. 3 is a perspective view in which a part of the separation device in FIGS. 1 and 2 is omitted.

In FIG. 1 and FIG. 2, the separated apparatus 10 for a pasted object generally has a holding section 12, a heating section 14, a punching section 16, a housing 18, a collection box 20, and the like.

The housing 18 is placed on a floor F, and the housing 18 is made of metal, for example, iron or aluminum. A collection box 20 is housed in the lower part 22 of the housing 18 so as to be able to be taken in and out. The housing 18 supports the heating unit 14, the punching operation unit 16 and the holding unit 12 described above, and the housing 18 is formed in a box shape by members 24, 26, 28, and 30.

The member 24 is supported horizontally by members 26 and 28 with respect to the member 30 and is fixed horizontally. Holder 12
Is for mounting and supporting a rear cover RC, which is an example of a plastic product, detachably. This rear cover RC
Is a rear cover used for, for example, an electronic device, a television receiver, or a display monitor of a computer. The rear cover RC forms a housing 1001 of the television receiver 1000 as shown in FIGS. 5 and 6, for example. The housing 1001 includes a rear cover RC and a front cover FC, and includes, for example, a cathode ray tube 1 in the front cover FC and the rear cover RC.
002 is accommodated.

As shown in FIGS. 5 and 6, a label 40 is attached to the rear surface 1100 of the rear cover RC. The label 40 is a type of affixed material, and the label 40 is made of paper or a plastic type different from the type of the plastic part forming the housing 1001. The label 40 is attached to the rear part 1 via an adhesive.
Affixed to 100.

The holding portion 12 shown in FIG.
Hold. That is, the holding portion 12 holds the rear cover 1100 such that the inner surface 1200 side of the rear surface 1100 is in close contact with the rear cover 1100. An example of the structure of the holding unit 12 is shown in FIGS. 3 and 4, and the holding unit 12 is mounted on a base 44. The holding portion 12 is provided with the rear cover RC,
It can be manually moved in the direction. The X direction and the Y direction are each perpendicular to the Z direction. The Z direction is a vertical direction.

The holding section 12 has a table 50, a slider 52 and a base 54, as shown in FIG.
The table 50 moves along the guide 56 of the slider 52,
It is movable in the Y direction. The center of the table 50 has, for example, a square or rectangular hole 58. The slider 52 is movable in the X direction along a guide 60 of the base 54. On the table 50, the inner surface 1200 side of the rear surface 1100 of the rear cover RC can be detachably mounted. Thus, the rear cover RC can be freely moved manually by the operator along the X direction and the Y direction using the table 50 and the slider 52 of the holding unit 12. However, the movement of the table 50 and the slider 52 in the Y and X directions is not limited to manual operation, but may be automatically performed by a command from the control unit 100 using a motor or the like. As shown in FIG.
2 has a hole 62.

FIG. 4 shows the hole 58 of the table 50 and the slider 5.
The second hole 62 and the hole 64 of the base 54 are shown. Such holes 58, 62, 64 are located substantially corresponding to holes 66 of platform 44.

Next, the heating section 14 shown in FIGS. 1 and 2 will be described. The heating unit 14 includes three heaters 70, 72,
74. These heaters 70, 72, 74
3 is connected to a power supply 76 as shown in FIG. 3. When power is supplied from the power supply 76, the heater 70 generates, for example, far-infrared rays and heats the peripheral portion 80 of the label 40 of the rear cover RC with far-infrared rays. be able to. Heater 70,
The reference numerals 72 and 74 are attached to a bracket 86 using a support 84, respectively. Each heater 70,
The reference numerals 72 and 74 are rotatably supported by the pins with respect to the support 84, so that the angles can be adjusted. Therefore, the heaters 70, 72, 74 can correspond to the size of the label 40 by changing the angle supported by the support 84.

The bracket 86 is a flat member made of, for example, heat-resistant metal, for example, iron or aluminum. The bracket 86 also holds a punch 90 as a cutting blade. Bracket 8
6 is attached to the rod 112 of the actuator 110. On the other hand, the punch 90 is attached to the rod 116 of another actuator 114. As the actuator 110 and the actuator 114, for example, a hydraulic cylinder such as a pneumatic cylinder or a hydraulic cylinder can be used, and each of them operates separately according to a command from the control unit 100. The power supply 76 is connected to the control unit 10
0 supplies power to the heaters 70, 72, 74 when needed. The punching operation section 16 includes a punch 90
And a table 44 and an actuator 114.
The punch 90 is a prismatic member as shown in FIG. 12, for example, and has a cutting edge angle θ. This cutting edge angle θ is, for example, 1 ° to 3 °.

As shown in FIG. 1 and FIG.
10 is fixed on the member 24. The actuator 114 is fixed on the member 24.

Next, with reference to FIGS. 7 to 11, a method of separating the pasted object of the plastic product will be described. As shown in FIG. 1 and FIG.
0, 72, 74 and the punch 90 of the punching operation unit 16
Is located at the standby position P1, and the actuators 110 and 114 in FIG. 3 are both in the contracted state. The worker
As shown in the holding step ST1 in FIG. 11, the rear cover RC made of plastic is placed on the holding portion 12 as shown in FIGS. Then, the operator positions the label 40 of the rear cover RC by using the table 50 and the slider 52 of the holding unit shown in FIG. 3 as shown in a positioning step ST2 of FIG.

As shown in a heating step ST3 in FIG. 11, the peripheral portion 80 of the label 40 is heated. When the control unit 100 operates the actuator 110 in FIG. 3, the rod 112 is lowered in the Z1 direction in FIG. 8, so that the bracket 86 approaches the rear cover RC. At this time, the control unit 100 also operates the actuator 114 to
0 is lowered in the Z1 direction in synchronization with the three heaters 70, 72, 74. Thereby, the three heaters 70 of the heating unit 14,
72, 74 are peripheral portions 80 of the label 40 of the rear cover RC.
, Each heater 70, 72, 74 heats the peripheral portion 80 of FIG. 3 by far infrared rays. The heating temperature at this time is, for example, 80 ° C to 150 ° C. If the temperature of the peripheral part 80 of the rear cover RC, which is a plastic product, is lower than 80 ° C., the plastic does not soften, so that the pressing force from only one direction punches out the periphery of the plastic product with low pressure. Is extremely difficult. If the temperature of the peripheral portion 80 of the rear cover RC is higher than 150 ° C., the plastic is excessively softened, melts and becomes sticky, so that the plastic is gathered by the punch 90 that punches the periphery of the attached plastic product. It will stick.

After the label 40 and the peripheral portion 80 are thus heated, the punching operation step ST shown in FIG.
As shown in FIG. 4, the peripheral portion 80 of the label 40 is punched. In FIG. 9, a punch 90 performs a punching operation on a peripheral portion 80 of the label 40. In this case, the rod 116 of the actuator 114 extends,
For example, as shown in FIG. 13, after punching a part of the peripheral portion 80 by descending in the Z1 direction, the punch 90
To rise. Next, when the operator slightly moves the slider 52 in the X2 direction in FIG. 13 with respect to the base 54 in FIG. 3, the punch 90 moves slightly in the X1 direction with respect to the peripheral portion 80. In this state, the punch 90 descends in the Z1 direction in FIG. 13 and punches another portion of the peripheral portion 80, and then the punch 90 moves up in the Z2 direction. By repeating such operations, all the portions 80A to 80D of the peripheral portion 80 shown in FIG. 3 can be punched out from the rear cover RC together with the label 40 using the punch 90.

Next, as in the collection step ST5 of FIG. 11, the label 40 and the peripheral portion 80 are collected in the collection box 20, and the punched rear cover RC and the next new rear cover RC are manually handled by the operator. And repeat the above procedure. As described above, the rear cover R
Since the C label 40 is punched out together with the peripheral portion 80 of the label, there is no possibility that a part of the label 40 remains on the rear cover RC side or the adhesive of the label remains on the rear cover RC side. From this, since the rear cover RC does not include the label 40 and the adhesive which are impurities, the subsequent material recycling can be reliably and completely performed. Also, as shown in FIG. 1 and FIG.
Although 0, 72, and 74 are located in three directions of the punch 90, no heater is located on the front side where the worker stands. In FIG. 3, the worker starts the punch 90 from the E direction.
Can be directly seen, so that there is an advantage that the corresponding position between the punch 90 and the peripheral portion 80 of the rear cover RC can be reliably grasped visually.

However, the present invention is not limited to this. As shown in FIG. 14, the punch 90 is not a single blade, but is larger than the size of the label 40 and has a shape capable of punching out the peripheral portion 80. For example, a box-shaped punch 1
It is of course possible to use 90. By using not only the table 50 but also the slider 52 in FIG. 3, the rear cover RC can be moved not only in the Y direction but also in the X direction, and the peripheral portion 80 can be punched. Punch 9
0 is not only arranged along the X direction as shown in FIG. 3, but may be such that the punch 90 can be rotated and positioned in the Y direction, for example, every 90 degrees. The heater is not limited to the far infrared heater,
Of course, a high-frequency induction heater that generates heat by applying high-frequency waves to an object may be used.

In the above-described embodiment, the label as the affixed object and its peripheral portion can be completely removed from the rear cover RC, which is a plastic product, by heating and punching. This makes it easy to remove the label 40 and the adhesive bonding the label,
Work efficiency is improved, and a line for waste disposal of the rear cover can be made. By using the relatively simple press actuator 114, the peripheral portion 80 can be punched, and the equipment cost can be reduced. The peripheral portion 80 is heated in advance by a heater so as to be soft, and then punched by the punch 90, whereby the punching resistance of the punch 90 can be reduced, so that the peripheral portion 80 can be punched in a short time. As described above, when the plastic is softened, the punch can be punched out with a punch, so that the actuator 114 for operating the punch may be small. The label is a quality label of a television receiver or a computer monitor, or a label such as a nameplate.
The plastic product is not limited to the rear cover RC and the front cover FC of the television receiver and the monitor device, but may be other electronic devices such as a housing of an indoor unit of an air conditioner.

[0030]

As described above, according to the present invention,
The material attached to the plastic product can be completely separated from the plastic product, thereby contributing to material recycling of the plastic product.

[Brief description of the drawings]

FIG. 1 is a front view showing a preferred embodiment of an attached article separating apparatus according to the present invention.

FIG. 2 is a side view of the separation device.

FIG. 3 is a perspective view showing each element of the separation device.

FIG. 4 is a cross-sectional view showing a holding unit, a die, a rear cover, and the like in FIG. 3;

FIG. 5 is an exemplary perspective view showing a part of a television receiver having a rear cover;

FIG. 6 is an exemplary perspective view of the television receiver shown in FIG. 5 as viewed from the back;

FIG. 7 is a diagram illustrating a standby state before punching a label and a peripheral portion thereof;

FIG. 8 is a diagram showing a state in which the label and its peripheral portion are being heated.

FIG. 9 is a diagram showing a state in which a label and a peripheral portion thereof are punched.

FIG. 10 is a diagram showing a state after punching out a label and a peripheral portion thereof.

FIG. 11 is a flowchart showing a method of separating a pasted object according to the present invention.

FIG. 12 is a side view showing an example of the shape of a punch.

FIG. 13 is a diagram showing an example of punching a peripheral portion of a label by relative movement of a punch and a rear cover.

FIG. 14 is a perspective view showing an example of another punch used in the separation device of the present invention.

[Explanation of symbols]

10: Apparatus separating device, 12: Holding unit,
14 ... heating unit, 16 ... punching operation unit, 18
..Housing, 40 ... Label (paste), 7
0, 72, 74: heater, 90: punch (blade), RC: rear cover (plastic)

Claims (7)

[Claims] 1. A device for separating a pasted object that is separated from a plastic item, the object pasted on the plastic item, comprising: a holding unit that holds the plastic item; An apparatus for separating a pasted object, comprising: a heating unit that heats the periphery of the object to be pasted; and a punching operation unit that punches out the periphery of the pasted object of the heated plastic article. 2. The separation of a pasted object according to claim 1, wherein the holding section is capable of moving the plastic article in a direction orthogonal to the punching direction while holding and holding the plastic article. apparatus. 3. The apparatus according to claim 1, wherein the heating unit has at least a far-infrared heater. 4. The punching portion includes a cutting tool, a die having a hole into which the cutting tool is inserted, and a peripheral portion of the plastic article pasted by moving the cutting tool into the hole of the die. 4. The device for separating an object to be pasted according to claim 3, further comprising an actuator for punching out. 5. The apparatus according to claim 4, wherein the far-infrared heater of the heating unit is located around the blade with the blade as a center, and the blade is exposed in a direction toward an operator. Separation device for pasted objects. 6. A method of separating a pasted object from a plastic item, the object being attached to a plastic item, a holding step of holding the plastic item on a holding portion, and a step of holding the plastic object. A heating step of heating a peripheral portion of the pasted object of the article by a heating unit; and a punching operation step of punching a peripheral portion of the pasted object of the heated plastic article. How to separate accessories. 7. The separation of a pasted object according to claim 6, wherein the holding section is capable of moving the plastic article in a direction orthogonal to the punching direction while holding and holding the plastic article. Method.