JP4443742B2 - Opening device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bag opening device for sealingly storing members.
[0002]
[Prior art]
In a pressure molding apparatus that performs isotropic pressure with hot water, pressure molding is performed in a state where a workpiece to be pressurized is contained in a bag of polyethylene or the like. This is to prevent the hot water, which is a pressure medium, from getting into the work. After pressurization, the bag was manually opened and the workpiece was taken out. Specifically, one side or several sides of the bag was cut with a blade and the film was peeled off from the work to open the bag and take out the work.
[0003]
[Problems to be solved by the invention]
In the above opening method, even after part of the bag was cut, the bags and the bag and the workpiece were in close contact with each other, and it was troublesome to peel them off. Furthermore, since the workpiece is warmed with warm water, there is a problem that it takes time for the work.
[0004]
The present invention has been made to solve the above-described problems, and an object of the present invention is to make it easy to take out a work sealed in a bag.
[Means for Solving the Problems]
The opening device according to the present invention is a device for opening a bag for sealingly storing a plate-like member. The said bag is a state which accommodated the plate-shaped member, and at least the edge part used as opening object has a collar-shaped part protruding from the plate-shaped member.
[0005]
In order to solve the above-described problems, an unsealing apparatus according to the present invention includes a table on which a plate-like member hermetically sealed in the bag is placed, and a cutter that cuts an edge of the bag to be unsealed. The table has a sub-table facing at least a part of an edge of the bag to be opened, and the sub-table descends with respect to the other part of the table. Fixing means for fixing one sheet on the lower side of the bag is provided on the surface on which the member is placed.
[0006]
After cutting the edge portion of the bag with the cutter, the sub-table is lowered in a state where one sheet on the lower side of the bag is fixed by the fixing means. Thereby, one sheet on the lower side of the edge cut by the cutter can be peeled off from the sheet member and one sheet on the upper side of the bag. In this way, the plate-like member can be easily taken out by making it easy to put a hand on the peeled portion and the peeled portion and peeling the bag.
[0007]
The fixing means may be an adsorbing means for adsorbing a bag by introducing a negative pressure into a hole provided in a surface of the sub-table on which the plate-like member is placed.
[0008]
It is also preferable to provide pressing means for fixing the bag tightly to the table in order to fix the bag when cutting with a cutter. Further, this pressing means can be an adsorption means for introducing a negative pressure to the holes arranged on both sides of the trajectory through which the cutter blade passes to adsorb the bag to the table.
[0009]
Furthermore, it is also preferable to cut the three sides of the bag with a cutter so that the operation can be performed more easily when the bag is peeled off.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings. FIG. 1 is a schematic perspective view of the opening device 10 of the present embodiment. On the base 12, a table 16 for placing the unsealed object 14 is arranged. The table 16 includes a main table 18 fixedly arranged on the base 12 and a sub-table 20 that can move in the vertical direction with respect to the main table 18. A main guide rail 22 is arranged on the base 12 so as to sandwich the table 16. A main slider 24 is disposed on the two main guide rails 22 and is movable along the main guide rails 22. The main slider 24 includes a beam member 26 that straddles the table 16 and the opening object 14, and a leg member 28 that supports the beam member 26 on the main guide rail 22. A disk-shaped cutter blade 30 is disposed below the beam member 26, and the cutter blade 30 abuts on a predetermined position of the unsealed object 14 on the table 16 as the main slider 24 moves and cuts. I do. Sub guide rails 32 are provided on both sides of the beam member 26 of the main slider 24 in both directions. The sub slider 34 moves on the sub guide rail 32. The sub-slider 34 includes a disc-shaped cutter blade 36. The cutter blade 36 is used for cutting an object to be opened on the sub-table 20.
[0011]
FIG. 2 is a cross-sectional view showing details of the opening object 14. The unsealed object 14 includes a laminate 38 that has been isotropically pressurized and heated using a liquid. The laminated body 38 is formed by laminating a ceramic green sheet and a metal sheet engraved with a predetermined pattern and pressurizing and heating it. Since the laminated body 38 is soft and cannot keep its shape by itself, it is placed on a rigid plate, in this embodiment, a stainless steel plate 40. Furthermore, since it is immersed in the liquid during the molding process, it is sealed in a polyethylene bag 42. The bag 42 is formed by heat-welding the upper film 44 and the lower film 46 at the edges. The portion indicated by “x” in the figure is the heat welding portion 48. As shown in the drawing, the heat welding part 48 is located further at the tip of the part protruding from the plate-like member to be pressure-molded.
[0012]
FIG. 3 is a side view showing the main part of the table 16. The sub table 20 is supported by an actuator 50, and can be moved from the same height as the main table 18 shown in the figure to a lower position by the actuator 50.
[0013]
FIG. 4 shows details of the surface on which the unsealed object 14 of the table 16 is placed. On this surface, fine holes 52 arranged in two rows along the edge of the bag 42 to be placed are formed. These holes 52 are connected to a suction pump (not shown) via pipes, and those that cover the upper surfaces of these holes 52 are adsorbed to the upper surface of the table 16 by the action of the suction pump.
[0014]
Next, the opening operation will be described. The unsealed object 14 is placed on the table 16. At this time, a portion outside the stainless plate 40 of the bag 42 is fixed on the table 16 by the suction action by the hole 52. In this state, the main slider 24 is moved from the position shown in FIG. During this movement, the cutter blade 30 cuts the bag 42 along the one-dot chain line L1 shown in FIG. As shown in the figure, the alternate long and short dash line L1 is inside the heat-welded portion 48 (the portion indicated by double hatching in the figure) of the bag. An alternate long and short dash line L1 as a locus of the cutter blade 30 is also shown in FIG. As shown in FIG. 4, holes 52 are arranged symmetrically on both sides of the trajectory of the cutter blade 30. Thereby, when the cutter blade 30 passes, the bag 42 is fixed and it can cut | disconnect reliably.
[0015]
After the main slider 24 has moved to the near side in FIG. 1, the sub slider 34 is moved from the near side to the far side. The locus of the cutter blade 36 at this time is shown by a one-dot chain line L2 in FIG. 1 and FIG. As indicated by the alternate long and short dash line L2, the trajectory of the cutter blade is on the inner side of the heat welded portion 48 of the bag. Moreover, the hole 52 is arrange | positioned at the object on both sides of the dashed-dotted line L2. At the time of cutting, the vicinity of the locus L2 of the cutter blade 36 is fixed by the hole 52, so that the cutting is surely performed.
[0016]
When the three sides of the bag 42 are cut, the sub-table 20 is lowered by the actuator 50. At this time, the lower film 46 of the bag is adsorbed to the sub table 20 by the negative pressure guided by the hole 52 and is pulled down together with the sub table 20. As a result, the upper film 44 and the lower film 46 are separated, and an operator grasps the separated portions, peels off the films 44 and 46, and takes out the laminate 38 and the stainless steel plate 40.
[0017]
In the opening work, since the opening object 14 is hot, it is preferable that the time for the operator to touch is short. In particular, since the stainless steel plate 40 is hot when touched, an operation process that does not touch the stainless steel plate 40 is desirable. After cutting with a cutter, the work of peeling off the upper and lower films that are in close contact takes time and increases the chance of touching a stainless steel plate or the like. According to this embodiment, not only the edge of the bag 42 is cut, but also the upper and lower films 44 and 46 are separated after cutting. That is, the operator does not need to perform the work of peeling off the adhered films 44 and 46, and the opening work is facilitated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of an unsealing apparatus according to an embodiment.
FIG. 2 is a detailed view of an object to be opened.
FIG. 3 is an explanatory diagram for raising and lowering a table, particularly a sub-table.
FIG. 4 is a detailed view of the surface of the table on which the object to be opened is placed.
[Explanation of symbols]
10 opening device, 14 opening object, 16 table, 18 main table, 20 sub table, 24 main slider, 30 cutter blade, 34 sub slider, 36 cutter blade, 38 laminate, 40 stainless steel plate, 42 bag, 44 upper film , 46 Lower film, 48 Thermal weld, 50 Actuator, 52 holes.

Claims (5)

This is a bag for sealingly storing a plate-like member, and this bag has a collar-like portion protruding from the plate-like member at least at the edge part to be opened in a state where the plate-like member is stored. An opening device for opening a bag,
A table for placing a plate-like member hermetically sealed in the bag;
A cutter for cutting an edge of the bag to be opened;
Have
The table has a sub-table facing at least a part of an edge of the bag to be opened , and the sub-table descends with respect to other parts of the table ,
A fixing means is provided for fixing one sheet on the lower side of the bag on the surface on which the plate-like member of the sub-table is placed,
After cutting by the cutter, the lower table is peeled off from the plate-shaped member by lowering the sub-table .
Opening device.   2. The unsealing apparatus according to claim 1, wherein the fixing means guides negative pressure to a hole provided in a surface on which the plate-like member of the sub-table is placed, and adsorbs one sheet on the lower side of the bag. An unsealing device that is an adsorbing means.   The unsealing apparatus according to claim 1, further comprising a pressing unit for bringing the edge of the bag to be unsealed into close contact with the table.   The unsealing apparatus according to claim 3, wherein the pressing means is an adsorbing means that guides negative pressure to holes arranged on both sides of a trajectory through which the blade of the cutter passes and adsorbs the bag to a table. Opening device.   The opening device according to any one of claims 1 to 4, wherein three sides of the bag are cut by the cutter.

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