JP2021023882A - Processing method and processing device for refrigerator door comprising glass plate - Google Patents

Abstract

To provide a method and a device for enhancing processing efficiency of a refrigerator door comprising a glass plate.SOLUTION: A processing method for separating a glass door of a refrigerator into a heat insulating member side part and a glass plate side part, comprises: a provision step of placing a glass plate in orientation to face a surface; and a separation step of acting, by an action part, on a heat insulation member so as to transfer the heat insulating member side part of the glass door to one side of the action part, and the glass plate side part of the glass door to the other side of the action part. In a part or the substantially whole of a time period when the action part is in the action to separate the glass door into the heat insulating member side part and the glass plate side part, no load or force in a direction approaching the surface is substantially applied to the glass door.SELECTED DRAWING: Figure 6

Description

The present invention relates to a processing method and a processing apparatus for a refrigerator door having a glass plate.

The appearance of the refrigerator door greatly affects the design of the refrigerator. A "steel plate door" in which a steel plate is used for the front plate (design surface material) that occupies most of the surface area of the door is also known, but for example, a glass plate (including a tempered glass plate) is used because of its high interior quality. The "glass doors" that have been used are increasingly being adopted.

Regarding the recycling of refrigerator members, although the structure related to the separation of the box body as in Patent Document 1 is known, there is no known known example of effectively separating the glass plate from the glass door.

Japanese Unexamined Patent Publication No. 2001-201248

FIG. 1 is a flow of a related refrigerator recycling method. The used refrigerator and the refrigerator that has become an industrial waste product are carried into the recycling plant (step S100). Refrigerators are classified into those having a steel plate door and those having a glass door (step S110). For refrigerators with steel plate doors, parts such as compressors are collected and then transported to the crusher together with the box and door (step S111), whereas for refrigerators with glass doors, the box to glass Remove the door (step S120). Then, the box body is crushed (step S111), and the door is processed depending on whether or not the glass plate is in close contact with the heat insulating member (for example, urethane) (step S130 or S140).

The reason why the subsequent processing changes depending on whether the front plate of the refrigerator door is a glass plate is that if the glass door is directly put into the crusher like the steel plate door, adverse effects such as clogging of the device will occur and it will be crushed safely. This is because even if the waste is discharged, the technique for accurately separating the substance after being crushed has not been established, which causes a factor of lowering the purity of other recycled materials.

If the glass plate can be separated from the glass door relatively easily, the glass plate is manually separated into another material (insulation member or the like) using a tool such as a hammer or a spatula (step S140). If the glass plate is difficult or impossible to remove, for example, the entire glass door is landfilled (step S130).

As a glass plate that can be separated relatively easily, for example, a urethane heat insulating material and a glass plate are not directly bonded or the like. Specifically, a mold release treatment is applied between the glass plate and the urethane heat insulating material with a shatterproof film, or a mold release treatment is directly applied to the glass plate or its coating. Can be mentioned. On the other hand, if it is difficult or impossible to separate the glass plate, for example, the glass plate and the heat insulating material are directly adhered to each other. A urethane heat insulating material as an example of a heat insulating material is formed as a urethane heat insulating material by injecting a urethane foam liquid toward one surface of a glass plate, for example, and expanding as the chemical reaction of the foam liquid progresses and adhering to a contacting object. Will be done. Further, the vacuum heat insulating material as another example of the heat insulating material is adhered, adhered, or attached to, for example, a glass plate by a double-sided tape, hot melt, or the like.

In this way, when recycling a refrigerator provided with a glass door, if the glass door is crushed as it is, it becomes difficult to separate and recover the glass. Therefore, the glass door is separated into a glass plate side and a heat insulating member side. However, it takes a lot of labor to perform this separation work manually, and automation is desired.

The processing method of the present invention made in view of the above circumstances is
With a glass plate
A glass door of a refrigerator having a heat insulating member arranged on the back surface side of the glass plate,
It is a processing method that separates the heat insulating member side and the glass plate side by using a separating device having a working part.
A preparatory step in which the glass door is placed so that the glass plate faces the fixed surface or the movable surface.
The working part acts on the heat insulating member,
Of the glass doors separated by the working part, the heat insulating member side is carried to one side of the working part.
Among the glass doors separated by the working part, the separation step in which the glass plate side is carried to the other side of the working part is included.
In a part or almost all of the working part separating the glass door into the heat insulating member side and the glass plate side, the glass door is in a direction approaching the fixed surface or the movable surface. Load and force are not substantially applied.

Further, the processing apparatus of the present invention made in view of the above circumstances is
With a glass plate
A processing device for a glass door of a refrigerator having a heat insulating member arranged on the back surface side of the glass plate.
A transport unit that transports the glass door and
An action unit that acts on the glass door to separate the glass door into a heat insulating member side and a glass plate side.
The glass door has a region in which the glass plate is placed so as to face a fixed surface or a movable surface.
The acting portion acts on the heat insulating member of the glass doors conveyed by the conveying portion, carries the heat insulating member side separated from the glass door to one side of the acting portion, and separates from the glass door. Carry the glass plate side to the other side of the working part,
A direction in which the working portion approaches the fixed surface or the movable surface with respect to the glass door in a part or almost all of the process in which the glass door is separated into the heat insulating member side and the glass plate side. No load or force is applied to the door.

Flow of related refrigerator recycling methods Top sectional view of the glass door of the refrigerator of the first embodiment Schematic diagram of a glass plate separating device used for the glass door of the first embodiment Top view of the blade of the first embodiment FIG. 6 is a diagram of a state after the glass door is placed in the area where the separation device of the first embodiment is arranged and the transfer is started. The figure in the middle of separating the glass door by operating the separation device of Embodiment 1. The figure which showed the problem when we tried to process the R-shaped door frame by the separation device of Embodiment 1. The figure which shows the vicinity of the blade of the separation apparatus of Embodiment 2. The figure of the state in which the glass door is processed by the separation device of Embodiment 3. Overall schematic view of automatic separation processing by the separation device of each embodiment

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
The various components of the present invention do not necessarily have to be independent of each other. For example, a plurality of components are formed as one member, and one component is formed of a plurality of members. Allows that one component is part of another, and that some of one component overlaps with some of another.
Further, although a plurality of procedures are described in order in the method of the present invention, the order and timing of the description does not limit the order and timing of executing the plurality of procedures, and is within a range that does not interfere with the content. Can be changed.

<Embodiment 1>
[Glass door 1]
FIG. 2 is a top sectional view of the glass door 1 used in the refrigerator of the present embodiment. The glass door 1 has a glass plate 2 whose main surface 21 (a surface visible from the appearance of the refrigerator) is used as a design surface, a heat insulating member 3 arranged on the back surface 22 side of the glass plate 2, and a side of the glass plate 2. It has, for example, a resin door frame 4 arranged on the periphery and a liner material 5 arranged on the rear side of the heat insulating member 3.
As the heat insulating member 3, for example, a known foam heat insulating material obtained by injecting a urethane foam liquid and foaming, or a known vacuum heat insulating material can be used. The heat insulating member 3 is made immovable relative to the glass plate 2 by its own adhesiveness or by adhesive, adhesive tape, or the like, or by adhering, adhering, or sticking to the back surface 22 of the glass plate 2. In the present embodiment, a urethane heat insulating material foamed from a urethane foam liquid is used as the heat insulating member 3, and is adhered to the back surface 22 by its own adhesiveness.

The door frame 4 supports the side surface and the front surface of the glass plate 2 to prevent the door frame 4 from being detached from the glass door 1. Therefore, the door frame 4 has a hardness and strength sufficient to prevent the glass plate 2 from coming off. The door frame 4 may have a presser support 41 that supports the edge of the main surface 21 of the glass plate 2, but not all of them.

[Separator 10]
FIG. 3 is a schematic view of a separating device 10 for a glass plate 2 used for the glass door 1 of the present embodiment. FIG. 4 is a top view of the blade 12 of the present embodiment. FIG. 5 is a view of a state after the glass door 1 is placed in the area where the separation device 10 of the present embodiment is arranged and the transfer is started.

The separation device 10 has a transport unit 11 that transports the glass door 1 forward, and a blade as an action unit that acts on the glass door 1 to be transported to separate the glass door 1 into the glass plate 2 side and the heat insulating member 3 side. It has 12 and a separation assisting portion 13 arranged on the upper side of the blade 12.

For example, the glass door 1 is placed between the transport portion 11 and the blade 12 with the glass plate 2 side facing downward so as to face the fixed surface 100.

(Transport section 11)
The transport unit 11 is movable in the horizontal direction, at least in the front-rear direction, abuts on the side surface of the glass door 1 (for example, the door frame 4), and pushes the glass door 1 in the direction in which the blade 12 is present to transport the glass door 1 (in FIG. 5). , Arrow A). The transport unit 11 can freely move back and forth on the fixed surface 100 by a linear drive mechanism device such as a cylinder.
The transport unit 11 pushes the side surface of the glass door 1 at a position higher than the height position of the blade 12, and the second transport unit 111 pushes the side surface of the glass door 1 at a position lower than the height position of the blade 12. It has a transport unit 112 and a gap 113 between the first transport unit 111 and the second transport unit 112. As will be described later, the blade 12 acts on the glass door 1 to separate the glass plate 2 side and the heat insulating member 3 side. After the separation, the blade 12 can be prevented from coming into contact with the transport portion 11 by entering the gap 113. Therefore, it is easy to finish cutting the glass door 1 in the substantially horizontal direction.

As the transport unit 11, the fixed surface 100 itself may move like a known belt conveyor, or a plurality of rotating bodies rotating in the same direction may be arranged on the fixed surface 100 to transport the glass door 1. In this case, it is preferable to push the side surface of the glass door 1 as in the present embodiment in order to easily apply the carrying force. The blade 12 may be moved, but from the viewpoint of safety, it is preferable to move the glass door 1 at a ground speed rather than the blade 12.

(Blade 12)
The blade 12 is fixed at a height separated from the fixed surface 100 to some extent (the fixed structure is not shown), and extends forward and backward with the cutting edge 121 as the rear end. This height is higher than the position of the back surface 22 of the glass plate 2 of the glass door 1 placed on the fixed surface 100, and lower than the upper end of the door frame 4. Further, preferably, the blade 12 is located above the glass discharge port 101 arranged on the floor surface. The rear end of the glass discharge port 101 is preferably located in front of the cutting edge 121 of the blade 12.

The material of the blade 12 is not particularly limited, but it is desirable to use a material having high hardness such as equivalent to SKS3 (quenching treatment). From the cutting edge 121, which is the rear end of the blade 12, to the rear, in the present embodiment, an inclination 122 is arranged on the upper surface side, which is upward as it goes forward. As a result, the heat insulating member 3 side separated from the glass plate 2 is made easy to slide along the upper surface of the blade 12, but an inclination may be arranged below the blade 12. In that case, the glass plate 2 side is guided by an inclination facing downward. In the experiments by the present inventors, the separation was performed more effectively when the slope was arranged downward than when it was arranged upward. The reason for this is not clear, but it is conceivable that it is easier to separate the glass plate 2 by guiding it smoothly, and that it is preferable to arrange the inclination on the side opposite to the separation assisting portion 13.

The blade 12 is integrated with, for example, a small blade 123 connected to one piece and fixed to a fixture such as a holder 129 with a bolt 128. The cutting edge of the small blade 123 is slanted when viewed from above and has a so-called jagged shape, and starts to come into contact with the door frame 4 at a plurality of points. This makes it easy to destroy the door frame 4. In addition, a known water cutter, laser beam, or the like may be used as the acting part.

It is preferable that the height at which the blade 12 is arranged is higher than the back surface 22 of the glass plate 2 and as close as possible to the back surface 22. Generally, for the glass door 1 sold in Japan, the thickness of the portion of the door frame 4 located in front of the glass plate 2 is about 3 mm, and the thickness of the glass plate 2 is about 3 mm. is assumed. Therefore, it is desirable to fix the fixing surface 100 at a height of more than 6 mm, for example. However, a known mechanism can be provided so that the height of the blade 12 can be freely adjusted.

(Separation assistance unit 13)
As will be described later, the separation assisting portion 13 is a member on which the heat insulating member 3 side separated from the glass plate 2 side is placed, and has dimensions in the height direction and is strong enough to withstand the load on the heat insulating member 3 side. It is a member of. The height dimension of the separation auxiliary portion 13 is preferably such that the angle formed by the fixed surface 100 and the bottom surface of the heat insulating member 3 side during separation is, for example, 5 ° to 45 °. If it exceeds 45 °, the glass may warp significantly during the separation process and break.

[Separation process of glass plate 2 from glass door 1]
The processing method of the glass door 1 in the present embodiment can be considered, for example, by dividing it into the following steps for convenience. A preparatory step of placing the glass door 1 in a predetermined position so that the separation device 10 can process it, a pre-transportation step of transporting the glass door 1 toward the blade 12 by the transport unit 11, and a door frame 4 using the blade 12. Destruction process of cutting and breaking, separation process of separating the glass door 1 into the glass plate 2 side and the heat insulating member 3 side, transporting the separated glass plate 2 side and the heat insulating member 3 side for the subsequent processing This is the post-transportation process.

Here, "destruction" can mean, for example, dividing a member integrally molded into two or more pieces, fragments, or fragments, or equivalents thereof. In the present embodiment, the resin member forming the door frame 4 can be divided into two or more pieces by the blade 12.
Further, "separation" means, for example, releasing the state in which two members formed separately by adhesion, sticking, sticking, etc. are attached so as to be relatively immovable, and these two members are released. It can be said that the state is relatively movable. In the present embodiment, the glass door 1 can be divided into a part on the glass plate 2 side and a part on the heat insulating member 3 side by the blade 12 entering the heat insulating material 3.

The “insulation member 3 side” can be defined as a part of the separated refrigerator door 1 that does not include at least the glass plate 2. The heat insulating member 3 side of the present embodiment includes at least a part of each of the heat insulating member 3, the door frame 4, and the liner material 5.
Further, the “glass plate 2 side” can be defined as including at least substantially all of the glass plate 2. The term "abbreviation" as used herein means that, for example, when a granular portion scraped off by the blade 12 is included on the heat insulating member 3 side, or is dissipated without being included on the glass plate 2 side or the heat insulating member 3 side, the heat insulating member is insulated. The purpose is that the member 3 side and the scattered glass are not called "glass plate 2 side".

Hereinafter, this separation process will be described in chronological order.
(Preparation process)
First, the glass plate 2 of the glass door 1 is placed face down on the fixed surface 100 between the transport portion 11 and the blade 12. For example, the glass door 1 in the state shown in FIG. 2 faces the fixed surface 100 between the conveying portion 11 and the blade 12 in the separating device 10 in the state shown in FIG. 3, and the glass plate 2 faces the fixed surface 100. Place it like this. At this time, it is preferable that no load is substantially applied to the upper side of the glass door 1. "Substantially no application" means that no load is applied, or at least the heat insulating member 3 side can be lifted while the blade 12 enters the heat insulating member 3 and separates the glass door 1. It means to give a small load. In this embodiment, it is not given at all, and a machine or the like that presses from above is not arranged.

(Pre-transport process)
After the glass door 1 is placed, the transport unit 11 is operated to transport the glass door 1 toward the blade 12. As a result, as illustrated in FIG. 5, the blade 12 comes into contact with the door frame 4.

It should be noted that the blade 12 may be approached to the glass door 1 while the glass door 1 is held by the transport portion 11 by the relative movement of the transport portion 11 and the blade 12, but the blade 12 is fixed. The embodiment of the present embodiment in which the transport unit 11 moves is preferable. Further, when the blade 12 is movable as in the third embodiment described later, the transport unit 11 may bring the glass door 1 closer to the area where the blade 12 acts.

(Destruction process)
After the blade 12 comes into contact with the door frame 4, the transport portion 11 further operates to cut the blade 12 into the door frame 4, and the blade 12 cuts and destroys the door frame 4.

(Separation process)
FIG. 6 is a view in the middle of operating the separation device 10 of the present embodiment to separate the glass door 1. When the transport unit 11 is further operated, the blade 12 enters between the glass plate 2 and the heat insulating member 3 or in the vicinity of the glass plate 2 of the heat insulating member 3. As the blade 12 enters the heat insulating member 3, the glass plate 2 and the heat insulating member 3 side are separated in the horizontal direction, that is, a force for peeling them in the vertical direction acts. Further, in the separation step of the present embodiment, the space directly above the glass door 1 is open and a downward load or force is substantially not applied to the glass door 1 (excluding the own weight of the glass door 1). .). According to the study by the present inventors, if a downward load or force is applied to the glass door 1 in this step, the separation by the blade 12 becomes difficult to proceed in combination with the own weight of the glass door 1, or the glass plate 2 becomes The risk of cracking increases.

Since no downward load or force is substantially applied as in the present embodiment, as the blade 12 advances and the glass door 1 separates into the glass plate 2 side and the heat insulating member 3 side, the glass plate 2 The side is transported to the region below the blade 12, and the heat insulating member 3 side is transported to the region above the blade 12.

Further, in the present embodiment, since the separation assisting portion 13 is arranged above the blade 12, the separated heat insulating member 3 side is placed on the separation assisting portion 13. For this reason, the heat insulating member 3 side exerts a force that pulls up the region that has not been separated yet, and the glass plate 2 side exerts a force that pulls it downward. Therefore, the glass plate 2 side and the heat insulating member 3 side move up and down. The force to separate the glass works effectively. A separation auxiliary portion may be further arranged on the glass plate 2 side, but if the glass plate 2 is bent significantly, the risk of cracking in the middle increases. Therefore, from the viewpoint of suppressing the cracking of the glass plate 2, the heat insulating member 3 It is preferable to provide it only on the side. It should be noted to those skilled in the art that the separation assisting portion 13 is an arbitrary member because the inclination 122 of the blade 12 can exert a certain effect even without the separation assisting portion 13.

Further, the separated glass plate 2 side can be warped in an upper chord shape by its own weight as illustrated in FIG. This is due to the circumstances of the glass door 1 and the configuration of the separation device 10.

The reason for the glass door 1 is that in the general glass door 1, the frame portion 4 has a presser support portion 41 that presses the edge portion of the main surface of the glass plate 2. Due to the presence of the presser support portion 41, the glass door 1 in which the glass plate 2 is placed so as to face the fixed surface 100 is opposed to the glass door 1 through the space without the glass plate 2 directly contacting the fixed surface 100. become. Therefore, when separated by the blade 12, the glass plate 2 can fall by the amount of the space, so that there is room for bending by its own weight.

The reason for the configuration of the separating device 10 is that the glass recovery port 101 is located below the blade 12. As a result, the glass plate 2 separated by the blade 12 starts to fall down the glass recovery port 101, so that there is still room for bending under its own weight.

One end of the bent glass plate 2 is supported by the unbroken door frame 4 or the adhesive heat insulating member 3, and the other end is supported by the lower surface side of the blade 12. Therefore, the blade 12 can be easily separated while following the surface of the glass plate 2 (the surface on the heat insulating member 3 side), and the heat insulating member 3 (residue) remaining on the glass plate 2 side is scraped off by the blade 12. Can be done.

In this way, while the blade 12 separates the glass door 1 into the glass plate 2 side and the heat insulating member 3 side, both the glass plate 2 side and the heat insulating member 3 side are in a direction orthogonal to the transport direction (front-back direction). Since the glass plate 12 can be moved away from the blade 12 (up and down direction), the glass plate 2 can be effectively separated and the glass plate 2 can be prevented from cracking as described above.

It should be noted that even from the preparation step to the breaking step, a downward load or force can be substantially not applied to the glass door 1.

(Post-transport process)
The separated glass plate 2 side and the heat insulating member 3 side are further forwardly transported by the transport unit 11. The details will be described later.

[Processed glass plate 2]
Since the glass plate 2 separated in this way is processed in a state in which a relatively large amount of the heat insulating member 3 is removed, it can be recycled as, for example, earth and wood. If the glass plate 2 that does not meet the acceptance criteria for recycling is discharged, the surface may be cleaned by using an automatic washing machine such as a brushing machine in the subsequent process, and the glass plate 2 may be manually removed. It doesn't matter.

If the glass plate 2 breaks into pieces due to strong contact with the blade 12 during the above process, it is necessary to clean the surrounding area. In preparation for such a case, if the first transport unit 111 can be moved up and down so that the glass accumulated in the gap 113 can be easily swept out, the cleanability can be improved.

[Other configurations]
In the present embodiment, the fixed surface 100 extending in the horizontal direction is used, but the fixed surface 100 may be supported by an elastic member arranged on the fixed surface 100 to be a movable surface. By doing so, the same effect as that of the third embodiment described later can be obtained.

This embodiment has been described as an idea relating to the treatment of a refrigerator door having a glass plate, but instead of the glass plate, a target material that is difficult to recycle or is desired to be separated from other parts for some reason is used as the door plate. This idea can be applied in the same way as long as it is. Further, it can be applied not only to a refrigerator door but also to a general door or an object having a plate material having a target material and an adhesive member adhered to the plate material.

The work in each step of the above processing method may be performed manually or may be automated as described later. For example, the installation of the glass door 1 in the preparatory process, the drive, acceleration / deceleration, or stop of the transfer unit 11 and the action unit in the previous transfer process may be performed manually by the operator, or automatic control using a sensor or the like. You may go by.

<Embodiment 2>
The configuration of the present embodiment can be configured in the same manner as that of the first embodiment except for the following points.
Of the door frame 4, it is assumed that the glass door 1 whose glass plate 2 side has an R shape in the vicinity of the presser support portion 41 is processed, for example. The glass door 1 provided with such a door frame 4 can be effectively processed by giving the following configuration.

FIG. 7 is a diagram showing a problem when the door frame 4 having the R shape R is processed by the separation device of the first embodiment. Regarding the door frame 4, when the height position where the blade 12 abuts is, for example, an R shape R, the blade 12 slips and rises on the glass door 1 blade 12 without destroying the door frame 4. Sometimes.

Therefore, the separation device 10 of the present embodiment has a pressing fixing jig 14 as illustrated in FIG. FIG. 8 is a diagram showing the vicinity of the blade 12 of the separation device 10 of the present embodiment. The separation device 10 is arranged in the area including the cutting edge 121 position of the blade 12 or on the upper side in the vicinity thereof, and loads the refrigerator door 1 in the direction in which the door frame 4 approaches the fixed surface 100, or downward in the present embodiment. It has a pressing fixing jig 14 that can be applied. The pressing fixing jig 14 can be moved at least up and down, and can operate as follows.

First, the transport unit 11 transports the refrigerator door 1 to a position where the door frame 4 substantially abuts on the cutting edge of the blade 12. After that, preferably, the transport speed is reduced or stopped, and the pressing fixing jig 14 applies a load to the door frame 4 or its vicinity of the refrigerator door 1. The load at this time is large enough that the glass door 1 does not slide up on the blade 12 when the blade 12 enters the door frame 4, and the transport unit 11 can continue to transport the glass door 1. It can be small or small. As long as this effect is obtained, the place where the pressing fixing jig 14 applies the load does not matter. Further, the load is not positively applied, and the pressing fixing jig 14 is substantially brought into contact with the upper end of the door frame 4, and the glass door 1 is housed in the region between the fixing surface 100 and the pressing fixing jig 14. The pressing and fixing jig 14 may be arranged so that the glass door 1 may come into contact with the pressing and fixing jig 14 to receive a force when the glass door 1 tries to rise, and may continue to be contained in this region.

After that, the transport unit 11 is operated while the glass door 1 is pressed by the pressing fixing jig 14, the refrigerator door 1 is transported toward the blade 12, and the blade 12 makes a cut in the door frame 4 to destroy the door frame 4. ..

Preferably, the pressing fixing jig 14 releases the pressing on the glass door 1 at a timing such as after the door frame 4 is cut and immediately after the separation of the glass door 1 is started (load or the like). (Release the state where force can be applied) and return upward. As a result, the glass door 1 is returned to a state in which it can move substantially freely upward.

Then, as in the first embodiment, the transport unit 11 is transported to the downstream side to separate the glass plate 2 and the heat insulating member 3 side.

<Embodiment 3>
FIG. 9 is a diagram showing a state in which the glass door 1 is processed by the separating device 10 of the present embodiment. In this embodiment, it is assumed that the glass door 1 (glass plate 2) is processed in an upright state.

The glass door 1 is placed on the fixed surface 100 with the door frame 4 facing down. The transport unit 11 moves the glass door 1 in the front-rear direction and transports the glass door 1 to a position where the blade 12 can reach. The blade 12 is not fixed and is driven up and down. As a result, the glass plate 2 side and the heat insulating member 3 side are separated. In this case, the glass door 1 lacks posture stability because the door frame 4 in the lateral direction abuts on the lower fixed surface 100 and the glass plate 2 and the like in the longitudinal direction extend in the vertical direction. A movable surface 110 and a pressing fixing jig 14 that can be moved are provided on both the left and right sides.

The pressing fixing jig 14 can apply and release a load in the left-right direction. The pressing fixing jig 14 and the movable surface 110 can be moved in a direction orthogonal to the extending direction of the blade 12, or in the horizontal direction in the present embodiment. Similar to the first embodiment, when the acting part breaks the door frame 4, a relatively strong force or load may be applied, but in other cases, a small load required to prevent the glass door 1 from tipping over. It is preferable that the movable surface 110 and the pressing fixing jig 14 are separated from each other by slightly larger than the short size of the glass door so that the movable surface 110 can be supported by applying a force when the door falls.

According to the present embodiment, the influence of the own weight of the glass door 1 on the control of the movable surface 110 and the pressing fixing jig 14 can be reduced, so that the control becomes easier from the viewpoint of the necessity of considering the own weight. Further, the fixed surface 100 in the first and second embodiments also corresponds to a movable one (the fixed surface 100 in the first and second embodiments corresponds to the movable surface 110 of the present embodiment). As a result, even when an excessive force is applied when the blade 12 separates the glass plate 2 side and the heat insulating member 3 side, the excess force is easily released so that the glass plate 2 does not break. However, the movable surface 110 may be fixed as long as the pressing fixing jig 14 can be finely controlled. Further, as in the first embodiment, the separation assisting portion may be arranged on the pressing fixing jig 14 side and / or the movable surface 110 side of the blade 12.

[Automation]
All of the above processing methods can be automated. The timing at which each device operates can be managed by various sensors (infrared rays, images, etc.). FIG. 10 is an overall schematic view of automatic processing using the separation device 10 of each embodiment.

For example, a sensor capable of detecting the presence or absence of an object is arranged in the area where the glass door should be placed in the preparation process. When it is detected that there is an object in this area, the transport unit 11 is operated. As a result, the pre-transport process is started.

Further, the glass door 1 transported in the pre-conveying step is configured to be able to decelerate or stop immediately before coming into contact with the blade 12. For example, if a sensor is arranged in the area through which the glass door 1 passes in the pre-conveying process and the transport unit 11 is decelerated after the sensor detects an object, the door frame 4 abuts on the blade 12 without slipping and cuts. Designed so that it can be inserted.

When the cutting is substantially completed, for example, when the blade 12 is made to bite into the door frame 4 by 5 mm, the transfer speed of the transfer unit 11 is increased to facilitate the separation by the blade 12. This determination can be made by arranging the infrared sensor at a position 5 mm in front of the cutting edge 121 of the blade 12 and at a position slightly offset vertically from the blade 12. This is because when the blade 12 bites into the blade 12 by 5 mm, the door frame 4 advances forward from the cutting edge 121 by 5 mm. In this way, the glass plate 2 and the heat insulating member 3 side are separated. When the pressing fixing jig 14 is used, the load and force of the pressing fixing jig 14 are released at the same time.

The following is an example of the post-transport process. A glass recovery port 101 is provided below the blade 12, and the separated glass plate 2 moves through the glass recovery port 101 onto the conveyor 17 below it. The conveyor 17 is a roller conveyor 18 in which a plurality of rotating bodies are provided with gaps from the middle. The cutting scraps and glass scraps 20 discharged in the separation process are collected in the collection container 19 arranged below the roller conveyor 18 through the gaps between the rotating bodies. At this time, when it is necessary to evenly collect the cutting scraps and the glass scraps 20, for example, the scraps 20 can be blown off by blowing air from the side of the roller conveyor 18 toward the glass plate 2. When blowing air, dust will fly around, so it is desirable to provide an appropriate enclosure around it.

On the other hand, the heat insulating member 3 side after separation is transported to, for example, a crusher by a suction cup transfer jig 90 capable of sucking and lifting an object, and a crushing process is performed.

Although the embodiment of the present invention has been described, this is an example. For example, even when a substrate case for an operation panel of a refrigerator or a vacuum heat insulating material is arranged on the surface of the glass plate 2, the glass plate 2 is similarly arranged. It is possible to separate the side and the heat insulating member 3 side.

1 Glass door 2 Glass plate 21 Main surface 22 Back surface 3 Insulation member 4 Door frame 41 Presser support 5 Liner material 10 Separator 11 Transport unit 111 1st transport unit 112 2nd transport unit 113 Void 12 Blade (acting unit)
121 Cutting edge 122 Inclined 123 Small blade 128 Bolt (fixing member)
129 Holder 13 Separation auxiliary part 14 Pressing fixing jig 100 Fixed surface 101 Glass discharge port 110 Movable surface 17 Conveyor conveyor 18 Roller conveyor 19 Sucker Conveyor jig 30 Collection container 31 Glass scraps

Claims (8)

With a glass plate
A glass door of a refrigerator having a heat insulating member arranged on the back surface side of the glass plate,
It is a processing method that separates the heat insulating member side and the glass plate side by using a separating device having a working part.
A preparatory step in which the glass door is placed so that the glass plate faces the fixed surface or the movable surface.
The working part acts on the heat insulating member,
Of the glass doors separated by the working part, the heat insulating member side is carried to one side of the working part.
Among the glass doors separated by the working part, the separation step in which the glass plate side is carried to the other side of the working part is included.
In a part or almost all of the process where the working part separates the glass door into the heat insulating member side and the glass plate side, the glass door is in a direction approaching the fixed surface or the movable surface. A method of treating glass doors in which the load and force of the glass door are not substantially applied. The separation device has a separation auxiliary unit and has a separation auxiliary portion.
The processing method according to claim 1, wherein in the separation step, of the glass doors separated by the working portion, the heat insulating member side side is placed on the separation assisting portion. The separation device has a separation auxiliary unit and has a separation auxiliary portion.
The processing method according to claim 1 or 2, wherein in the separation step, of the glass doors separated by the working portion, the glass plate side is placed on the separation assisting portion. The glass door has a door frame arranged on the side circumference of the glass plate.
The separation device has a pressing and fixing jig.
In the separation step, after the door frame is destroyed, the working portion enters the heat insulating material.
From the start of the preparatory step to immediately after the working portion begins to enter the heat insulating material, the pressing and fixing jig is a load or force in a direction approaching the fixed surface or the movable surface with respect to the glass door. The processing method according to any one of claims 1 to 3. The fixed surface or the movable surface extends substantially horizontally.
The processing method according to any one of claims 1 to 4, wherein the separation device has a glass recovery port below the working portion. The working part is
A blade with a shape in which the cutting edge begins to contact at multiple points on the glass door.
The processing method according to any one of claims 1 to 5, which has an inclination on the side of the fixed surface or the movable surface. The separation device has a transport unit for transporting the glass door.
The working part is a blade.
The processing method according to any one of claims 1 to 6, wherein the transport unit has a gap arranged including a region facing the blade. With a glass plate
A processing device for a glass door of a refrigerator having a heat insulating member arranged on the back surface side of the glass plate.
A transport unit that transports the glass door and
An action unit that acts on the glass door to separate the glass door into a heat insulating member side and a glass plate side.
The glass door has a region in which the glass plate is placed so as to face a fixed surface or a movable surface.
The acting portion acts on the heat insulating member of the glass doors conveyed by the conveying portion, carries the heat insulating member side separated from the glass door to one side of the acting portion, and separates from the glass door. Carry the glass plate side to the other side of the working part,
A direction in which the working portion approaches the fixed surface or the movable surface with respect to the glass door in a part or almost all of the process in which the glass door is separated into the heat insulating member side and the glass plate side. A processing device that substantially does not apply a load or force to the door.

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