JPH1024418A - Method for regenerating tray in package containing plastic tray and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regenerate a plastic tray by taking out plastic trays from a package containing a large quantitry of plastic trays returned without being externally damaged. SOLUTION: In a method for regenerating a plastic trays in a package containing plastic trays and an apparatus therefor, the exterior film 15 of the package and the creased part 13b of jacket paper 13 are torn and a knock pin is pushed in an engaging piece 11a with respect to the member A to be treated taken out of the exterior film 15 to separate a material to be held from the tray 11 and, subsequently, the bonded part of the jacket paper 13 and the tray 11 is heated to weaken the adhesive action and the jacket paper 13 is peeled from the tray 11 and, thereafter, the residual adhesive bonded to the tray 11 is wiped off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for reproducing a tray in a package including a plastic tray to be used as an individual unit by using a compact disk (CD) as a content (holding object) as an example. It is.

[0002]

BACKGROUND OF THE INVENTION Conventionally, as individual wearing of various contents,
Plastic trays (including cases) have been widely used, and returned goods have been produced depending on consumer preferences, types of contents, quality, and the like. There was no external damage to the contents themselves or the trays that hold and hold them, and it was pointed out that they could be reused.However, no special measures were taken for their processing methods. . For example, CDs on which signals such as voices, characters, images, etc. are recorded are not popular depending on the recorded contents, such as music pieces, so that a large amount of returns are generated. These products have no commercial value even if the products themselves are new, so they must be discarded as products. However, although there is room to reuse the CD itself or the tray that is a part of the component of the package in its original form or as a resin pellet material again, special measures have been taken for the processing method. Did not. On the other hand, recently, the number of CDs produced in combination with the convenience of easy handling of CDs and the spread of portable CD players and the like has been steadily increasing, and as a result, they are returned. The number of CDs is large, and it has been desired to develop a method capable of effectively processing them.

[0003]

[Technical matters attempted to be developed] The present invention has been made in view of such a background. In particular, when a holding object to be held is standardized for a tray,
Focusing on the fact that the tray can be reused as long as there is no stain on the appearance, an attempt was made to devise a method of unpacking and regenerating the tray without damaging the tray from the package.

[0004]

According to a first aspect of the present invention, there is provided a method for regenerating a tray in a package including a plastic tray, wherein a holding member is held on a resin tray, and both sides of the tray in this state are held together. A piece of belt-shaped jacket paper is covered in a folded shape, one of the pieces is fixed to the back of the tray with a hot-melt adhesive, and further, these are covered with an exterior film to form a flat package. In the method of unpacking the body and reusing the tray,
In this method, the package or the one in the middle of unpacking is used as an object to be processed, and first, in the unpacking step, the outer film of the package and the folded portion of the jacket paper are cut off, thereby holding the tray holding the object to be held. Is taken out in a state where the jacket paper is stuck to only the back surface, and then, in the separation step, the holding object is engaged and held by the dowel pins protruding from the holding object side with respect to the processing object. The holding member is separated from the tray by pushing the locking piece of the holding member to release the holding of the holding member, and then, in the jacket paper peeling step, the bonding portion between the jacket paper and the tray is heated to act on the adhesive. After weakening, the jacket paper is peeled from the tray, and then the adhesive remaining on the back of the tray is wiped off in the adhesive removing step. It is intended. By using such specific items of the invention as a means, the used tray can be taken out of the package without being stained, and the taken-out tray can be reused in its original form. The separated holding body can be reused, for example, as a raw material for a tray by forming it into resin pellets, thereby solving the above-mentioned problem.

According to a second aspect of the present invention, in addition to the above requirements, a preheating step is further provided before the jacket paper peeling step, and a preheating step is provided in the preheating step. It is characterized in that the processing body is heated. And by using such invention specific items as means, the hardness of the hot melt adhesive in the object to be processed to the jacket paper peeling step is not affected by the temperature change caused by the season or the passage of time of the day. It will be constant. Therefore, the following processing can be performed under the same conditions, and the processing efficiency can be improved and the quality of the reproduced tray can be stabilized, thereby contributing to solving the above-mentioned problem.

According to a third aspect of the present invention, in the method for recycling a tray in a package including a plastic tray, in addition to the above requirements, a repair agent applying step is further provided after the adhesive removing step. In the coating step, a repair layer is formed on the back surface of the tray. And, by using such invention specific items as a means, even if a little hot-melt adhesive remains on the back surface of the tray, it is covered with the repair layer, so that the back surface of the tray does not have a sticky feeling, and again The application of the hot melt adhesive is also improved, and the improvement of the processing efficiency accompanying this can contribute to the solution of the above problem.

According to a fourth aspect of the present invention, in addition to the above requirements, in the method for regenerating a tray including a plastic tray, in the separation step, the separation is performed in a state where the held object is placed downward. It is characterized by being performed. By using such specific features of the invention as a means, only by releasing the engagement state between the locking piece formed on the tray and the held body, the held body falls down due to gravity. Can be separated, which can contribute to solving the above-mentioned problem.

According to a fifth aspect of the present invention, there is provided a method for recycling a tray in a package including a plastic tray, wherein in addition to the above requirements, the held body is a CD main body, and the package is a CD package. It consists of By using such invention-specific items as means, it is possible to reuse CDs and their trays that cause a large amount of returned goods in a short period of time from the release, and the above-mentioned problem is solved.

According to a sixth aspect of the present invention, there is provided an apparatus for regenerating a tray in a package including a plastic tray, wherein a holding member is held by a resin tray, and both sides of the tray are surrounded by a single band of jacket paper. While covering in a folded shape, one of the pieces is fixed to the back surface of the tray with a hot melt adhesive, and further, these are covered with an exterior film to make a flat package, and the package is unpacked,
In an apparatus for reusing a tray, the apparatus comprises an unpacking device, a separating device, a jacket paper peeling device, and an adhesive removing device, wherein the unpacking device includes a package outer film and a jacket. A cutting blade for simultaneously cutting the folded portion of the paper and a transfer means for taking out the tray holding the object to be held with the jacket paper stuck only on the back surface are provided. A knocking pin for releasing the holding of the held body by pushing in the locking piece that tends to expand and hold the holding body is provided so as to be able to protrude.Furthermore, the jacket paper peeling device further includes jacket paper, a tray, Heating means for heating the adhesive portion of the adhesive sheet to weaken the action of the adhesive, and peeling means for peeling off the heated jacket paper from the tray. The scraping blade dropping wipe adhesive is provided are those comprising as said. By using such specific items of the invention as a means, the used tray can be taken out of the package without being stained, and the taken-out tray can be reused in its original form. The separated holding body can be reused, for example, as a raw material for a tray by forming it into resin pellets, thereby solving the above-mentioned problem.

[0010] Furthermore, a tray recycling apparatus for a package containing a plastic tray according to a seventh aspect of the present invention, in addition to the requirement of the sixth aspect, is further provided in the regeneration apparatus at a stage preceding the jacket paper peeling apparatus. One or both of a preheating device that heats the entire object to be processed and a repair agent application device that is provided at the subsequent stage of the adhesive removing device and repairs the back surface of the tray is incorporated. is there. And by using such invention specific items as means, in the case where a preheating device is provided, the hardness of the hot melt adhesive in the object to be processed to the jacket paper peeling step may vary depending on the season or the passage of time of the day. It is constant without being affected by the resulting temperature change. Therefore, the following processing can be performed under the same conditions, and the processing efficiency can be improved and the quality of the reproduced tray can be stabilized, thereby contributing to solving the above-mentioned problem. On the other hand, in the case where the repair agent application device is provided, even if the hot melt adhesive slightly remains on the back surface of the tray, it is covered with the repair layer, so that the back surface of the tray does not have a sticky feeling, and The application of the hot-melt adhesive is also improved, and this can contribute to the solution of the above-mentioned problem through the improvement of the processing efficiency.

Further, in the tray recycling apparatus for a package containing a plastic tray according to claim 8, in addition to the requirement according to claim 6 or 7, the posture of the object to be processed in the separation device is such that the object to be processed is located below the object to be held. , And the knock pin is provided so as to protrude upward from below. By using such specific features of the invention as a means, only by releasing the engagement state between the locking piece formed on the tray and the held body, the held body falls down due to gravity. Can be separated, which can contribute to solving the above-mentioned problem.

According to a ninth aspect of the present invention, there is provided a tray recycling apparatus for a package including a plastic tray, wherein the holding member is C-type.
D body, wherein the package is a CD package. By using such specific items of invention, it is possible to reuse CDs and their trays that cause a large amount of returned goods in a short period of time from the release, and the above-mentioned problems can be solved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method and an apparatus for regenerating a tray in a package including a plastic tray according to the present invention will be specifically described based on the illustrated embodiment. In the following description, first, the configuration of the package to which the present invention is applied will be briefly described, and then, a tray in a package including the plastic tray of the present invention will be described using a CD package as an example of the package. After the structure of the apparatus is described in detail, a method of regenerating the tray in the package including the plastic tray of the present invention, which is performed by directly using the regenerating apparatus, together with the operation state of the regenerating apparatus, will be described. And
Lastly, another embodiment having a partially different configuration or processing mode will be described.

In FIG. 1, the one shown at the right end is a CD package 10 which is an example of a package to which the present invention is applied, and this is an example of a holding object for a resin tray 11. While holding the CD main body 12, both sides of the tray 11 in this state are covered with a single band of jacket paper 13.
Is folded in the middle, and one of the pieces 13a is placed in the tray 1.
1 is a flat plate-like member having a rectangular shape as an example in which the back surface is fixed with a hot melt adhesive 14 and further covered with an exterior film 15. In the present specification, the CD package 10 which is an example of such a package is set to the initial state,
In addition to the CD package 10 which is an example of such a package in a packed state, the package A is defined as an object to be processed A including a package being unpacked.

The illustrated CD package 10 is, for example, a CD package 10 that is often used as an individual unit for music CDs having a diameter of 8 cm, and has a rectangular flat tray 11 that can be divided into two parts at the center. In the upper half, the accommodating portion for accommodating the CD main body 12 is C
It is formed in a depressed state according to the shape of the D main body 12. Further, although not shown, the upper end of the housing section is notched for finger hooking, and the CD main body 12 is engaged and held at the center of the housing section. Locking piece 11a is formed. Among them, the locking piece 11a is formed by, for example, punching out the center of a flat cylindrical protrusion in a round shape and forming a plurality of cuts radially in this, and a plurality of elastic pieces arranged radially. Are configured as a set. The diameter of the locking piece 11a near the base is set to be slightly smaller than the opening diameter formed at the center of the CD main body 12, but the diameter near the upper end of the locking piece 11a is It is set so as to be somewhat larger than the opening diameter due to the outward expansion tendency.

Therefore, when the CD main body 12 is housed in the housing section, the CD main body 12 is engaged and held by the locking piece 11a due to the outward tendency of the locking piece 11a. When the CD main body 12 housed in the housing section is to be removed from the tray 11, the locking piece 1
By lightly pushing the upper end surface of 1a with a finger other than the thumb such as the index finger or the middle finger, the diameter near the upper end of the locking piece 11a is reduced somewhat, and the engagement is released, and The edge of the center opening of the CD main body 12 is held by the belly, while the thumb, for example, enters through the notch for finger hook,
A part of the outer peripheral surface of the CD main body 12 is held by the belly of the finger, and the CD main body 12 is sandwiched between these two fingers so that the CD
The main body 12 is removed from the tray 11.

The jacket paper 13 is provided on the tray 11
Are formed by two pieces 13a covering the front surface (the surface on the side where the accommodation portion is formed) and the back surface thereof, and a bent portion 13b connecting these two pieces 13a. One of the pieces 13 a is fixed to the lower surface of the tray 11 by a hot melt adhesive 14. Such a configuration is also employed in a cash register type CD package 10 for a CD having a diameter of 12 cm, and such a cash register type is naturally included in the application of the present invention. Further, in the present invention, such a CD main body 12 is used.
It is also intended to regenerate a tray 11 (used in this specification that also includes a case) holding contents other than the above, and the tray 11 and the held object taken out from various packages having the same configuration. It is possible to reuse.

Next, the configuration of the tray reproducing apparatus in the package including the plastic tray of the present invention will be described in detail by taking such a CD package 10 as an example. The tray recycling apparatus 1 of the present invention basically includes an unpacking apparatus 2, a separating apparatus 3, a jacket paper peeling apparatus 4, and an adhesive removing apparatus 5. Among these, the unpacking device 2 is the above-mentioned CD as a package.
Holds a stocker 20 capable of accommodating the packages 10 in a stacked state, a cutting blade 21 for simultaneously cutting the exterior film 15 of the CD package 10 and the bent portion 13b of the jacket paper 13, and a CD main body 12 as a held body. A transfer means 22 for taking out the object A in a state where the jacket paper 13 remains adhered only to the back surface of the tray 11, and a guide means 23 for guiding the transfer of the object A.

As shown in FIG. 1, for example, the stocker 20 is formed by vertically rising four angle members as a frame member. The lower end of the stocker 20 is a CD package 10 as a packaging body located at the lowermost end. A gap is formed to allow only the passage. The cutting blade 21 is provided fixed to the guide means 23 as shown in an enlarged manner in FIG. 1, and its cutting edge slightly protrudes from the guide surface of the guide means 23, and the outer film 15 and The protruding dimension is set so that only the middle bent portion 13 b of the jacket paper 13 is cut off and does not reach the tray 11.

Further, the transfer means 22 abuts on a support surface 24 for supporting the vicinity of the short side end of the lower surface of the CD package 10 as a package, and a part of the long side surface of the CD package 10 to carry out. The push body 25 is pushed in toward the side, and a transfer shifter including an air cylinder (not shown) for driving the push body 25 is provided. Further, the guide means 23 is formed as an example by two angle members arranged so as to face the short side of the CD package 10.
As an example, two guide rollers 26 for preventing floating are provided on the guide surface in the case of free rotation.

Further, the separating device 3 is provided with a knock pin 30 for pushing in the locking piece 11a and releasing the holding of the CD main body 12, which is a held body, so as to be protrudable.
In addition, a lifting / lowering shifter 31 for raising / lowering the knock pin 30 and a lifting prevention roller 3 which abuts on the upper surface of the CD main body 12 to prevent the CD main body 12 from lifting when separated.
2. The object A, which has reached the receiving position O, is moved to a predetermined separating position P.
And a collection device 34 for collecting the CD main body 12 separated from the tray 11.

The positioning device 33 includes a processing object A
And a supporting member 35 for directly supporting the receiving member 35, a holding bracket 36 for holding the receiving member 35 in a cantilever state as an example, and being connected to one end of the holding bracket 36 to move the receiving member 35 at a predetermined stroke. It comprises a vertical shifter 37 for moving up and down, and a positioning shifter 38 connected to the vertical shifter 37 for moving the receiver 35 by a predetermined stroke in the horizontal direction. The collecting device 34 includes a take-out chute S ₁ provided below the receiving position O, a relay chute S ₂ provided below a take-out end of the take-out chute S ₁ , and a held object carried out of the relay chute S _2. And a collection conveyor C for receiving the CD main body 12 and transporting it to a predetermined collection area.

[0023] In addition to the above-mentioned pickup chute S _1, Fig. 3
As an example, as shown in (a) and knock pin receiving hole 39 having a long hole shape is formed, thereby to enable the retractable knock pin 30 from the bottom surface of the pickup chute S _1. The workpiece A supplied to the receiving position O, as shown in FIG. 3 (a) (b), together with the bearing rail R ₁ is part of the lower surface of the long side is supported at the separation position since P has a configuration such as assistance sides of the long sides of the object a by further guide rails R ₂ is. In still separating position P, a part of the bearing rail R ₁ as shown in FIG. 3 (a) have been gouged in a circular arc shape, dropping the CD body 12 separated from the part on the pickup chute S ₁ below It has become.

Further, the jacket paper peeling device 4 heats the bonding portion between the jacket paper 13 and the tray 11 to weaken the action of the adhesive, and peels the heated jacket paper 13 from the tray 11. And a peeling means 44. Among heating means 40 hot air outlet 4 having a long hole shape as an example to be formed at appropriate intervals in the support rail R ₁ as shown in FIG. 3
At a slight distance from the target object A conveyed on 1 and the bearing rail R _1, a heating unit 42 provided so as to be positioned thereabove, for the workpiece A in this heating unit 42 Height adjustment shifter 43 for adjusting height
And a hot air supply device (not shown) for supplying hot air to the hot air outlet 41.

On the other hand, the peeling means 44 sucks the piece 13a of the jacket paper 13 fixed to the tray 11 and holds the piece 13a. bearing a vertically movable shifter 46 for vertically moving between the working position, the guide rod 47 which acts as a guide for moving the vertical movement shifter 46 in the width direction of the bearing rail R _1, the vertical movement shifter 46 It is constituted by a width direction of the rail R ₁ comprises a lateral feed shifter 48 to a predetermined stroke movement.
6 and 7, a reference numeral B denotes a storage box for storing the piece 13a of the jacket paper 13 peeled by the peeling means 44.

Further, the adhesive removing device 5 includes a tray 11
It is provided with a scraping blade 50 for wiping off the residual adhesive on the back surface. The adhesive removing device 5 shown in FIG. 8 is provided with two such scraping blades 50, The main blade 50
A, the one provided at the subsequent stage is identified as the sub-blade 50B. Each of these scraping blades 50 is held in a suspended state by a gap adjusting shifter 51. With respect to the main blade 50A provided at the preceding stage, the guide rod 47 and the lateral feed shifter 48 in the jacket paper peeling device 4 are further provided. A guide rod 52 and a lateral feed shifter 53 having the same configuration as those described above are provided, and these enable a lateral feed of a constant stroke. In addition, the adhesive removing device 5 includes a conveying unit 54 for the object A.
And an auxiliary heating device 55 for preventing the hot melt adhesive 14 melted by the heating means 40 from being hardened.

The tray reproducing apparatus 1 of the present invention is basically constituted by including the above-mentioned various apparatuses, but it is also possible to incorporate the following apparatus. By doing so, the processing efficiency can be further improved, and the quality of the recycled tray 11 can be improved and stabilized. First, one of the devices is a preheating device 6 shown in FIG. 2, which is provided at least in a stage preceding the jacket paper peeling device 4. In the illustrated embodiment, the device is unpacked. Device 2 and CD
4 shows a state in which the device is disposed between the separation device 3.

The preheating device 6 comprises a stocker 60 for accommodating the object A to be preheated, and a conveying means 61 for conveying the object A supplied from the lower end of the stocker 60.
And a preheating chamber 62 which covers the conveying means 61 over substantially the entire length and is shielded from the external atmosphere, and a hot air supply device (not shown) for supplying hot air into the preheating chamber 62. The stocker 60 has the same configuration as that of the stocker 20 in the unpacking device 2 described above, and the transport means 61 includes the dogs 63 at equal intervals as shown in FIGS. For example, the one provided with a chain conveyor 64 disposed thereon, a support rail 65 for supporting the lower surface near both ends on the long side of the object A, and a guide bar 66 for preventing the object A from being lifted during the conveyance. Can be adopted.

Next, a repairing agent application device 7 shown in FIG. 9, which is another device, will be described. This is provided with a storage container 70 for storing the repair agent L at the top, and a drip nozzle 71 provided through an appropriate communication pipe below the storage container 70,
Further below it, two application rolls 72 rotating while contacting each other are horizontally laid over a lower conveyor 73 via an appropriate drive mechanism and a drive transmission mechanism.

Next, in conjunction with the operation state of the tray regenerating apparatus 1 of the present invention thus constructed, a package including the plastic tray of the present invention, which is implemented by directly using the tray regenerating apparatus 1 is used. A tray regeneration method will be described. (1) Unpacking process (see FIG. 1) This process is performed by using the outer film 15 of the package and the jacket paper 1
3 and the tray 11 holding the object to be held is separated from the jacket paper 13 only on the back surface.
Is a process of taking out the product while it is stuck.
Hereinafter, the CD package 10 will be specifically described as an example. First, the worker attempts to process the CD on the stocker 20.
A predetermined number of packages 10 are stored. Next, the pushing body 25 is driven, and the CD located at the lowermost end of the stocker 20 is moved.
The package 10 is moved toward the cutting blade 21 side.

C that moves by being pressed by the pushing body 25
The D package 10 is cut to a predetermined depth by the cutting blade 21 while being sandwiched between the bearing surface 24 and the guide roller 26, and as described above, the outer film 15 of the CD package 10 and the folding of the jacket paper 13 are performed. The processing target A in which only the portion 13b is cut off is obtained. Next, the tray 11 covered with the jacket paper 13 is taken out from the cut opening of the exterior film 15, and the jacket paper 1 is removed.
If the middle bent portion 13b of the third piece 3 is not completely cut, the piece 13a of the jacket paper 13 not fixed to the tray 11 is separated as shown in FIG.

(2) Preheating Step (See FIG. 2) This step is a step for heating the object A in advance before the object A is subjected to a jacket paper peeling step described later. Hereinafter, the processing object A in which the CD package 10 is in the initial state will be specifically described. The object to be processed A taken out in the above-described unpacking step is stored in the stocker 60 with the CD main body 12 side down. The objects to be processed A stored in the stocker 60 are taken out one by one from a lower end by a dog 63 provided in the conveying means 61, heated while passing through the preheating chamber 62, and directed to the next separation step. Conveyed.

(3) Separation Step (See FIGS. 2 to 6) In this step, a knocking pin 30 protruding from the object to be processed with respect to the object to be processed A is engaged with the object to be held so that the object to be held tends to expand. In this step, the holding member is released from the tray 11 by pushing the locking piece 11a to release the holding of the holding member. Hereinafter, the processing object A in which the CD package 10 is in the initial state will be specifically described. The object to be processed A that has reached the receiving position O through the preheating process is shown in FIG.
As shown in (a), the vertical movement shifter 37 is extended, and is received by the receiver 35, and as shown in FIG. Leads to. Next, the vertical movement shifter 37 is contracted, the object A is placed on the support rail R ₁ again, and the positioning shifter 38 is extended to receive the object 35.
In FIG. 4 (b), below the receiving position O as indicated by the imaginary line, in preparation for the next positioning of the object A to be processed.

Incidentally, in this state, the object to be processed A is shown in FIG.
In a state of being sandwiched between the bearing rail R ₁ and floating prevention roller 32 as shown in (a). Next, the lifting shifter 31 is extended to raise the knock pin 30. The ascending knock pin 30 penetrates through the knock pin receiving hole 39 of the take-out chute S ₁ and continues to ascend until it comes into contact with the end face of the locking piece 11 a of the tray 11 of the workpiece A located further above. The locking piece 11a, which comes into contact with the knock pin 30 and is pushed somewhat upward, is elastically deformed as shown in FIG. 5 (b), and releases the engagement of the CD main body 12 held and held.

[0035] then allowed to migrate lifting shifter 31 in the contracted state, in FIG. 5 (c), the lowering knock pin 30 as shown by the solid line to the retracted position of the lower pickup chute S _1. Note Since a portion of the bearing rail R ₁ is scooped out in an arc shape as described above in the separation position P, the locking piece 11
CD body 12 is released of engagement by a falls on pickup chute S ₁ as shown in FIG. 5 (c). And FIG.
As shown in (a), the relay chute S ₂ and the recovery conveyor C
The CD main body 12 separated from the tray 11 to a predetermined collection area is transported, processed into pellets as shown in FIG. 6, and then reused as a raw material for the tray 11.

(4) Jacket paper peeling step (FIGS. 3, 6,
This step is a step of heating the adhesive portion between the jacket paper 13 and the tray 11 to weaken the action of the adhesive, and then peeling the jacket paper 13 from the tray 11. Hereinafter, the processing object A in which the CD package 10 is in the initial state will be specifically described. In this step, first, the hot melt adhesive 14 is melted by the heating means 40. That is, heating from the front side of the tray 11 is performed by the hot air blown out from the hot air outlet 41 formed in the support rail R ₁ , while heating from the jacket paper 13 side is performed by the heat generated from the lower surface of the heating unit 42. Are performed simultaneously.

The object A is moved by one pitch by the pushing action of the receiver 35 in accordance with the positioning of the next object A by the positioning device 33, and is sequentially fed one pitch at a time while being heated. It is transported to the position where the means 44 is installed. Incidentally, the hot-melt adhesive 14 in the processing target A which has reached the position where the peeling means 44 is installed is in a sufficiently molten state, that is, a state having almost no adhesive action. Next, FIG.
As shown in (a), the vertically moving shifter 46 of the peeling means 44 is expanded, and the suction paper 45 at the lower end is positioned on the upper surface of the processing object A and is in a peelable state.
The jacket paper 13 is peeled off from the tray 11 and sucked.

[0038] Then, after contracting the vertical movement shifter 46 as shown in FIG. 7 (b), the lateral feed shifter 48 is operated, the vertical movement shifter 46 in the width direction of the bearing rail R ₁ is moved one pitch. Next, as shown by the phantom line in FIG. 7B, the vertical movement shifter 46 is extended again, the suction of the suction pad 45 is released, and the jacket paper 13 peeled from the tray 11 is placed in the lower storage box B. To accommodate. Next, as shown in FIG. 7 (c), another vertical movement shifter 46 located on the side of the vertical movement shifter 46 is extended, and the suction pad at the lower end is placed on the jacket paper 13 of the next processing object A. 45, the jacket paper 13 is peeled off from the tray 11 and adsorbed.

Then, as shown in FIG. 7D, after the up / down moving shifter 46 is contracted, the horizontal feed shifter 48 is moved to the position shown in FIG.
The vertical movement shifter 46 is moved by one pitch in the direction opposite to the case of (1). Next, as shown by the phantom line in FIG. 7D, the vertical movement shifter 46 is extended again, the suction of the suction pad 45 is released, and the jacket paper 13 peeled off from the tray 11 in the lower storage box B. To accommodate. Thereafter, the same operation is repeated, and the processing object A is sequentially fed to the jacket paper 1.
3 is peeled off one after another.

(5) Adhesive Removal Step (see FIG. 8) This step is a step of wiping off the residual adhesive adhering to the back surface of the tray 11. Hereinafter, the processing object A in which the CD package 10 is in the initial state will be specifically described. The workpiece A supplied in this step is transported by the transport unit 54 with the lower surface and one end face on the short side held. The object A conveyed in this manner is first heated from above by the auxiliary heating device 55, and the molten state of the hot melt adhesive 14 is maintained. Incidentally, when the jacket paper peeling step and the present step are arranged adjacent to each other, since not much time has elapsed since the jacket paper 13 was peeled off, there is no need to worry about re-hardening of the hot melt adhesive 14. Therefore, in such a case, the heating by the auxiliary heating device 55 can be omitted.

When the object A reaches the portion where the main blade 50A provided in the preceding stage is provided, most of the hot melt adhesive 14 attached to the back surface of the tray 11 is affected by the action of the main blade 50A. It is removed as if scraped off. By the way, this main blade 50
The height of A is adjusted to a predetermined height in advance by the gap adjusting shifter 51, so that the amount of the residual adhesive adhering to the back surface of the tray 11 can be increased without damaging the tray 11. Parts can be removed. As shown in FIG. 8, the gap adjusting shifter 51 for holding the main blade 50A is configured to be movable by a guide rod 52 and a lateral feed shifter 53 in a direction orthogonal to the transport direction of the workpiece A. So,
Thus, a plurality of main blades 50A provided alternately or at appropriate intervals are selected and used so that only the same main blade 50A is not always used. Note that the specific operation state in this case is the same as the operation state of the peeling means 44 shown in FIG. 7, and thus the description thereof is omitted.

The object to be processed A is further transported to reach a portion where the sub-blade 50B is provided. Then, under the action of the sub-blade 50B, all the hot melt adhesive 14 remaining on the back surface of the tray 11 is scraped off and removed. Incidentally, the height of the sub-blade 50B is adjusted to a predetermined height in advance similarly to the case of the main blade 50A. However, the height of the sub-blade 50B is increased due to the difference between the two purposes. Adjustment requires higher accuracy. When only the main blade 50A alone removes most of the adhesive remaining on the back surface of the tray 11, and when it is not necessary to perform another scraping by the sub-blade 50B, the sub-blade 50
The scraping by B can be omitted. The transverse feed shifter 53 and the guide rod 52 provided in the case of the main blade 50A are not particularly provided for the sub-blade 50B, but this is due to the size of the scraping hot melt adhesive 14. If necessary, the same configuration can be applied to the sub-blade 50B.

(6) Repair Agent Application Step (See FIGS. 8 and 9) In this step, a repair agent L is applied to the back surface of the tray 11 as shown in FIG. 8 from which the residual adhesive has been removed, and the repair layer is formed. This is the step of forming. Hereinafter, the processing object A in which the CD package 10 is in the initial state will be specifically described. The workpiece A reaching the discharge end of the transporting means 54 in the adhesive removing device 5 is, for example, a switching chute 8 as shown in FIG.
According to 0, non-defective products and defective products are selected, and the defective products are pelletized again, for example, and used as a raw material for the tray 11. On the other hand, the non-defective product is transferred onto the conveyor 73, and the repair agent L is applied as described below.

That is, as shown in FIG. 9, the workpiece A transported by the conveyor 73 reaches the portion where the coating roll 72 is installed, and receives the supply of the repairing agent L dropped or dropped from the dropping nozzle 71. Under the action of the rotating application roll 72, the repair agent L is applied as shown in FIG. Then, as shown in FIG. 9, the repair agent L is dried, for example, by blowing air, and as shown in FIG. 9, regeneration as a new tray 11 on which a repair layer is formed is completed.

[0045]

Another embodiment of the present invention is a method and an apparatus for regenerating a tray in a package including a plastic tray, which are basically provided with the above-described configuration and processing mode. As described above, it is also possible to adopt another embodiment having a different partial configuration or partial processing mode. First, in the unpacking device 2, instead of moving the package, it is also possible to move the cutting blade 21 side, and instead of opening the package one by one, , Arrange multiple packages horizontally,
Unpacking of a plurality of packages at once with a single cutting blade 21 or simultaneous operation of a plurality of cutting blades 21 on a plurality of packages stored in a stocker 20 Thus, it is also possible to unpack a plurality of packages at once.

Next, in the separating device 3, instead of pushing the knock pin 30 from below and separating the held object by using the gravity drop of the held object, the knock pin 30 is , And the CD body 12 is taken out upward by the combined use of the suction pad 45 employed in the peeling means 44 or by the pinching action of two fingers simulating the movement of a human finger held by a robot arm. It is also possible.

Further, the jacket paper peeling step and the adhesive removing step are simultaneously performed in one step, and the hot melt adhesive 14 is melted by the heating means 40, and then the jacket paper 13 is removed by the scraping blade 50 together with the jacket paper 13. It is also possible to remove the hot melt adhesive 14.
In addition, the preheating step may be provided between the unpacking step and the separating step, or may be provided between the separating step and the jacket paper separating step.

[0048]

According to the present invention, a method and an apparatus for regenerating a tray in a package including a plastic tray according to the present invention are embodied by the above-described embodiments. The present invention has various effects as described below by providing such specific features of the invention. First, the used tray 11 can be taken out of the package without being soiled. The taken-out tray 11 can be reused as it is, and the held body separated from the tray 11 is formed into resin pellets. By doing so, it can be reused, for example, as a raw material for the tray 11, and can contribute to effective utilization of resources.

When the object to be processed A is heated before the jacket paper 13 is peeled off, the hardness of the hot melt adhesive 14 affects the temperature change caused by the season or the passage of time in one day. It is constant without being
The following processing can be performed under the same conditions, so that the processing efficiency is improved and the quality of the recycled tray 11 is further stabilized.

Further, when the repair agent L is applied to the back surface of the tray 11 from which the adhesive has been removed,
Even if a small amount of the hot melt adhesive 14 remains on the back surface of the tray 11, the hot melt adhesive 14 is covered with the repair layer.
The coating of No. 4 is also performed well, which contributes to the improvement of the processing efficiency.

Further, when the holding member is separated from the tray 11 in a state where the holding member faces downward, the tray 11
Since the held object drops by gravity only by releasing the engagement between the locking piece 11a formed on the holding member and the held object, the held object can be easily separated from the tray 11.

Further, when the held body is the CD main body 12 and the package is the CD package 10, the CD main body 12 and its tray 11, which generate a large amount of returned goods in a short period of time from the release, can be reused, and the resources can be reused. It can contribute to effective utilization.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing an unpacking step.

FIG. 2 is a vertical sectional side view showing a preheating step and a separation step, and a plan view showing a stocker and a conveying means inside a preheating chamber.

FIG. 3 is a plan view showing a state of positioning of an object to be processed in a separation step.

FIG. 4 is a side view of the same.

FIG. 5 is a vertical cross-sectional side view showing stepwise how the held object is separated in a separation step.

FIG. 6 is a side view showing a separation step and a jacket paper peeling step.

FIG. 7 is an explanatory diagram showing an operation state of a peeling means in a jacket paper peeling step in a stepwise manner.

FIG. 8 is a side view showing an adhesive removing step.

FIG. 9 is a side view showing a repair agent application step and subsequent steps, and a plan view showing a regenerated tray enlarged and partially cut away.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 tray reproducing device 2 unpacking device 3 separating device 4 jacket paper peeling device 5 adhesive removing device 6 preheating device 7 repair agent applying device 10 CD package 11 tray 11a locking piece 12 CD body 13 jacket paper 13a piece 13b Part 14 Hot melt adhesive 15 Exterior film 20 Stocker 21 Cutting blade 22 Transfer means 23 Guide means 24 Bearing surface 25 Push body 26 Guide roller 30 Dowel pin 31 Elevating shifter 32 Lift prevention roller 33 Positioning device 34 Recovery device 35 Receiver 36 Holding bracket 37 Vertical shifter 38 Positioning shifter 39 Dowel pin receiving hole 40 Heating means 41 Hot air outlet 42 Heating unit 43 Height adjusting shifter 44 Peeling means 45 Suction pad 46 Vertical moving shifter 47 Guide rod 48 Lateral feed shifter 5 Scraping blade 50A Main blade 50B Sub-blade 51 Clearance adjusting shifter 52 Guide rod 53 Lateral feed shifter 54 Transport means 55 Auxiliary heating device 60 Stocker 61 Transport means 62 Preheating chamber 63 Dog 64 Chain conveyor 65 Support rail 66 Guide bar 70 Storage container 71 Dropping nozzle 72 Coating roll 73 Conveyor 80 Switching chute A Workpiece B Storage box C Recovery conveyor L Repair agent O Receiving position P Separation position R ₁ Bearing rail R ₂ Guide rail S ₁ Extraction chute S ₂ Relay chute

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location G11B 23/03 607 B09B 5/00 Q

Claims (9)

[Claims] 1. A holding member is held by a resin tray, and both sides of the tray in this state are covered with a single band-shaped jacket paper in a folded state, and one of the two pieces is hot-coated on the back surface of the tray. In a method of fixing a flat package body which is fixed with a melt adhesive and further covering them with an outer film film, and opening the package body, and reusing the tray, this method uses the package body or the open body. The object to be processed is in the middle of packing, and in the unpacking process, first, the outer film of the package and the middle folded portion of the jacket paper are cut off,
Thereby, the tray holding the held object is taken out in a state where the jacket paper is stuck to only the back surface, and then, in the separation step, the held object is held by the dowel pins projecting from the held object side with respect to the object to be processed. The holding member is released from the tray by pushing the locking piece having the tendency to expand and hold to release the holding member from the tray, and then, in the jacket paper peeling step, the bonding between the jacket paper and the tray is performed. After heating the part to weaken the action of the adhesive,
A method for regenerating a tray in a package including a plastic tray, wherein the jacket paper is peeled off from the tray, and then the adhesive remaining on the back surface of the tray is wiped off in an adhesive removing step. 2. The plastic tray according to claim 1, further comprising a preheating step before the jacket paper peeling step, wherein the object to be processed is heated in advance in the preheating step. A method for regenerating a tray in a package containing the same. 3. A repair agent applying step is provided after the adhesive removing step, and a repair layer is formed on the back surface of the tray in the repair agent applying step. 3. A method for regenerating a tray in a package including the plastic tray according to 1 or 2. 4. The tray in a package including a plastic tray according to claim 1, wherein, in the separation step, separation is performed in a state where the held object is installed so as to face downward. How to play. 5. The method for regenerating a tray in a package including a plastic tray according to claim 1, wherein the object to be held is a CD main body, and the package is a CD package. . 6. A holding member is held on a resin tray, and both sides of the tray are covered with a single band-shaped jacket paper in a folded state, and one of the two pieces is hot-melt bonded to the back surface of the tray. Fixed with an agent, and furthermore, a flat package body in which these are covered with an exterior film is in a starting state,
In an apparatus for unpacking the package and reusing the tray, the apparatus comprises an unpacking device, a separating device, a jacket paper peeling device, and an adhesive removing device. Is provided with a cutting blade that simultaneously cuts the outer film of the package and the folded part of the jacket paper, and a transfer means that takes out the tray holding the held object only with the jacket paper stuck on the back surface. The separation device is provided with a knock pin that pushes a locking piece that tends to expand outwardly that is engaged with and held by the held object to release the holding of the held object. The peeling device is provided with heating means for heating an adhesive portion between the jacket paper and the tray to weaken the action of the adhesive, and peeling means for peeling off the heated jacket paper from the tray. Removal Tray reproducing apparatus in the packaging comprising a plastic tray, characterized in that the scraping blade dropping wipe residual adhesive of the tray rear surface is provided at the location. 7. The recycling apparatus further includes a preheating device provided before the jacket paper peeling device for heating the entire object to be processed, and a repair device provided after the adhesive removing device for repairing the back surface of the tray. 7. A tray recycling device for a package including a plastic tray according to claim 6, wherein either one or both of the agent coating device and the agent applying device are incorporated. 8. The posture of the object to be processed in the separation device is such that the object to be processed is directed downward, and the knock pin is provided so as to protrude upward from below. An apparatus for regenerating a tray in a package including the plastic tray according to the above. 9. The apparatus for reproducing a tray in a package including a plastic tray according to claim 6, wherein the held body is a CD main body, and the package is a CD package.