Hole opening device and hole opening method

Abstract

The problem to be solved by the invention is to provide a punching device capable of precisely punching a large number of holes in a sheet body at low cost. In order to solve the problem, the present invention provides a perforating device for perforating a large number of holes in a sheet body, the perforating device comprising: a holding member for holding a large number of needle members so that the needle members can move up and down; and an elastic roller member that presses the upper surface of the plurality of needle members in a state in which the sheet body is fixed below the holding member.

Description

Technical Field

[0001] The invention relates to a hole-making device and a hole-making method. Background Art

[0002] Efforts have been made to mitigate or reduce the impact of climate change, and research and development related to reducing carbon dioxide emissions are being conducted to achieve this goal. As an example of such efforts, a technology is disclosed in which a sheet having a cooling effect is attached to the surface of a cooling object to cool the cooling object without consuming energy such as electricity (for example, refer to Patent Document 1).

[0003] [Prior Technical Literature]

[0004] (Patent Document)

[0005] Patent Document 1: Japanese Patent No. 6821063 Summary of the invention

[0006] [Problems to be solved by the invention]

[0007] In the above technology, when the sheet and the cooling object are arranged outdoors, water may sometimes penetrate between the cooling object and the sheet depending on the environment. Due to the penetration of the water, gas may be generated between the cooling object and the sheet due to corrosion, and the durability of the cooling object and the sheet may be reduced. Therefore, it is considered to form a large number of holes on the sheet for draining the water.

[0008] As existing processing methods for forming a large number of holes on a sheet, there are a method of using a roller-shaped body having a plurality of needles and a method of processing by heated needles or lasers. However, the former has the problem of high device cost because the roller-shaped body is a special shape. The latter has the problem of generating harmful gases depending on the material of the sheet. Therefore, it is considered to use commercially available needles to open holes on the sheet, but the length of commercially available needles is not strictly uniform, so there is a problem that the size of the holes is uneven, and it is impossible to form holes of the size that match the design on the sheet.

[0009] The present invention is made in view of the above-mentioned problems, and an object of the present invention is to provide a hole-making device that can accurately and inexpensively make a large number of holes in a sheet.

[0010] [Technical means to solve the problem]

[0011] (1) The present invention relates to a hole-opening device, which is a device for opening a large number of holes in a sheet body, comprising: a holding member for holding a large number of needle members so as to be able to move up and down; and an elastic roller member for pressing the upper surface of the large number of needle members while the sheet body is fixed below the holding member.

[0012] According to the invention of (1), a hole drilling device can be provided which can form a large number of holes in a sheet accurately and at low cost.

[0013] (2) The perforating device according to (1), wherein the plurality of needle members include a locking portion that is locked to an upper end of the holding member.

[0014] According to the invention of (2), the needle member having penetrated the sheet body can be easily pulled out.

[0015] (3) The drilling device according to (1) or (2), wherein the holding member includes a holding frame that holds the plurality of needle members, and a pressing member that is disposed below the holding frame.

[0016] According to the invention of (3), when the needle member having penetrated the sheet body is pulled out, the needle member can be pulled out while the sheet body is fixed by the pressing member, so that the sheet body can be prevented from swelling and wrinkling.

[0017] (4) The hole-drilling device according to any one of (1) to (3), wherein the sheet body can be cold worked.

[0018] According to the invention of (4), even if the sheet is made of a material that generates harmful gas when heated, the sheet can be processed without generating harmful gas.

[0019] (5) The hole-piercing device according to any one of (1) to (4), wherein the holding member has a hole portion through which the large number of needle members can be inserted, and a diameter of the hole portion is larger than a diameter of the large number of needle members.

[0020] According to the invention of (5), the needle member can be inserted into the hole and held so as to be movable up and down.

[0021] (6) The hole-piercing device according to any one of (1) to (5), wherein the sheet body is fixed above a supporting member, and the supporting member has a hole portion into which at least the front ends of the plurality of needle members can be inserted.

[0022] According to the invention of (6), a hole having a protrusion that is difficult for water drops to enter can be opened in the sheet body.

[0023] (7) In addition, the present invention relates to a hole-making method, which is a method for making a hole on the aforementioned sheet body using the hole-making device described in any one of (1) to (6), and sequentially comprises: a process of arranging the aforementioned sheet body below the aforementioned retaining component; a process of making the aforementioned retaining component abut against the upper surface of the aforementioned sheet body for fixing; and a process of pressing the upper surface of the aforementioned large number of needle components using the aforementioned elastic roller component.

[0024] According to the invention of (7), a hole drilling method can be provided, which can form a large number of holes in a sheet body accurately and at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a three-dimensional diagram showing the appearance of a hole-drilling device according to one embodiment.

[0026] Figure 2 The figure is a perspective view showing an elastic roller member of a hole punching device according to an embodiment.

[0027] Figure 3A The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0028] Figure 3B The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0029] Figure 3C The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0030] Figure 3D The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0031] Figure 3E The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0032] Figure 3F The figure is a cross-sectional view showing the process of a hole-forming method according to one embodiment.

[0033] Figure 4A The figure is a side view showing the operation of a hole-drilling device according to one embodiment.

[0034] Figure 4B The figure is a side view showing the operation of a hole-drilling device according to one embodiment.

[0035] Figure 4C The figure is a side view showing the operation of a hole-drilling device according to one embodiment.

[0036] Figure 4D The figure is a side view showing the operation of a hole-drilling device according to one embodiment.

[0037] Figure 4E The figure is a side view showing the operation of a hole-drilling device according to one embodiment.

[0038] Figure 4F The figure is a side view showing the operation of a hole-drilling device according to one embodiment. DETAILED DESCRIPTION

[0039] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

[0040] <Drilling device>

[0041] The hole-opening device 1 of this embodiment is as follows: Figure 1 , Figure 2 and Figure 3A As shown, the drilling device 1 includes a holding member 2, a plurality of needle members P held by the holding member 2, and an elastic roller member R. In addition to the above, the drilling device 1 may include a supporting member 23, fixing members 31 and 32, a base 4, and a stand 5.

[0042] The hole punching device 1 is a device capable of punching a large number of holes in the sheet S. The direction in which the sheet S is fed to the hole punching device 1 is the X direction in each figure. The method of feeding the sheet S to the hole punching device 1 is not particularly limited, and for example, a method of pulling the sheet S out of a roll-shaped body S1, punching a large number of holes by the hole punching device 1, and then winding the sheet S using a roll-shaped body S2 can be cited.

[0043] The sheet S is not particularly limited as long as it is a sheet-shaped component that can be punched by the needle component P. The hole-punching device 1 of this embodiment can perform cold working, so the sheet S can also include any material that generates harmful gases due to heating. As the above-mentioned material, for example, vinyl chloride resin or vinylidene chloride resin can be listed. The function of the sheet S is not particularly limited, for example, it can also be a sheet with a radiation cooling function. As a sheet with a radiation cooling function, for example, a sheet with a radiation cooling layer can be listed, and the radiation cooling layer has an infrared radiation layer that radiates infrared light and a light reflection layer.

[0044] (Retaining parts)

[0045] On the holding part 2, hold Figure 3A to Figure 3F A large number of needle components P as shown. The large number of needle components P are held by the holding component 2 so as to be able to move up and down above the sheet S. With the sheet S fixed below the holding component 2, the upper surface of the large number of needle components P is pressed by the elastic roller component R. As a result, the large number of needle components P penetrate the sheet S, thereby opening a plurality of holes in the sheet S. As a method for fixing the sheet S below the holding component 2, for example, as described later, a method of fixing the sheet S by pressing the pressing component 22 from above while the sheet S is clamped between the pressing component 22 and the supporting component 23 can be cited.

[0046] The holding member 2 is preferably as Figure 3AAs shown, it has: a retaining frame 21 for retaining a large number of needle components P; and a pressing component 22, which is arranged below the retaining frame 21 and abuts against the sheet body S when the sheet body S is fixed. Holes h1 and h2 are formed on the retaining frame 21 and the pressing component 22, respectively, through which the needle components P can be inserted. The holes h1 and h2 are holes that penetrate in the thickness direction and are arranged in a manner of interconnection. The needle components P are retained in the retaining component 2 so as to be movable up and down by being inserted into the holes h1 and h2. The needle components P are retained so as to be independently movable up and down one by one. There is no particular limitation on the material constituting the retaining frame 21 and the pressing component 22, and for example, it may be a resin.

[0047] The holes h1 and h2 preferably have a larger diameter than the diameter of the needle member P. Thus, the needle member P can be inserted into the holes h1 and h2. In addition, the diameter of the needle member P in this specification refers to the diameter of the portion after the locking portion P1 of the needle member P is removed. The hole diameters of the holes h1 and h2 are slightly larger than the diameter of the needle member P, and more preferably, when the needle member P is inserted into the holes h1 and h2, a portion of the needle member P will abut against a portion of the inner surface of the holes h1 and h2. Thus, the needle member P can be kept approximately vertical.

[0048] The number and positions of the holes h1 and h2 are preferably the same when viewed from above when the holder 21 and the pressing member 22 are arranged. The shapes of the holes h1 and h2 are not particularly limited, and may be circular or square. The arrangement of the holes h1 and h2 is not particularly limited, and may be sawtooth or lattice when viewed from above. The plurality of holes h1 and h2 are preferably evenly arranged at predetermined intervals.

[0049] Cage 21, such as Figure 3A As shown, a large number of needle components P1 are held. The pressing component 22 is arranged below the retaining frame 21 in such a manner that the hole h2 is connected to the hole h1. By separately arranging the pressing component 22 and the retaining frame 21, when pulling out the needle component P that has penetrated the sheet S, the needle component P can be pulled out by the retaining frame 21 while the sheet S is fixed by the pressing component 22. In this way, it is possible to prevent the sheet S from bulging and wrinkling. The thickness of the retaining frame 21, that is, the length in the Z direction, is preferably more than 90% of the length of the needle component P, and the front end of the needle component P can reliably reach the length of the sheet S. In this way, the needle component P can be better held.

[0050] (Needle Parts)

[0051] The needle component P is a metal component having a conical shape at the front end P2. A commercially available product may also be used for the needle component P. In the commercially available needle components P, the conical shape of the front end P2 is substantially the same, but sometimes the length is uneven. The hole-opening device 1 of this embodiment can still precisely control the size of the hole opened on the sheet body S even when the commercially available needle component P as described above is used.

[0052] The needle component P preferably has a plate-shaped stopper P1 with an expanded diameter at the end opposite to the front end P2. In this case, the area of ​​the stopper P1 when viewed from above is larger than the areas of the hole portions h1 and h2. Since the needle component P has the above-mentioned stopper P1, the needle component P inserted into the retaining component 2 is stopped at the upper end side of the retaining component 2, and will not fall even if the retaining component 2 is moved up and down. Thus, the needle component P that has penetrated the sheet body S can be easily pulled out.

[0053] (Supporting parts)

[0054] The sheet S is placed on the supporting member 23. That is, the sheet S is fixed in a state where the sheet S is clamped by the retaining member 2 and the supporting member 23. The supporting member 23 has a hole h3 at a position corresponding to the hole h1 and h2. The hole h3 is a hole into which at least the front end P2 of the needle member P can be inserted. The hole h3 can also be a hole having a hole diameter of the same degree as the hole h1 and h2, through which the needle member P can be inserted. When a hole is formed in the sheet S, a part of the sheet S enters the hole h3, thereby forming a protrusion protruding to one side and a hole formed at the top of the protrusion on the sheet S. It is not easy for water drops to penetrate into the hole formed at the top of the protrusion as described above. Therefore, a hole into which water drops are not easy to penetrate can be formed on the sheet S by using the supporting member 23 having the above-mentioned hole h3.

[0055] In this embodiment, the hole h3 is a hole portion that penetrates from one end side where the needle member P is inserted to the other end side, and the pedestal 4 is arranged on the other end side. As a result, the insertion length of the needle member P inserted into the plurality of hole portions h3 is uniform, so that the size of the hole opened on the sheet body S can be precisely controlled. As an aspect other than the above, the hole portion h3 may also be a hole portion having the same depth that does not penetrate to the other end side. With the above aspect, the insertion length of the needle member P can also be uniform.

[0056] (Elastic roller component)

[0057] The elastic roller member R presses the upper surface of the needle member P protruding upward from the holding member 2 when the sheet S is fixed below the holding member 2. The elastic roller member R is a rotatable cylindrical member. Figure 2As shown in FIG. 1 , the sheet S is rotated in the Y direction orthogonal to the X direction, which is the feeding direction of the sheet S, while being pressed downward by a predetermined pressure.

[0058] The elastic roller member R is preferably composed of an elastic member. Thus, even if the lengths of the needle members P vary and the lengths of the needle members P protruding from the top of the holding member 2 vary, the difference in length can be absorbed by the elastic deformation of the elastic roller member R. Therefore, the pressure applied to the needle members P and the length of the needle members P penetrating the sheet body S can be made uniform. Therefore, the size of the hole formed in the sheet body S can be made uniform.

[0059] In order to obtain the above-mentioned effect, the elastic roller member R preferably has a Shore A hardness of 70 HS to 90 HS. As a material of the elastic roller member R satisfying the above-mentioned conditions, for example, urethane rubber can be cited.

[0060] (Fixed parts)

[0061] The fixing members 31 and 32 are members that can fix and release the holder 21 and the pressing member 22 on the pedestal 4 independently. In the present embodiment, the fixing member 31 can fix and release the pressing member 22, and the fixing member 32 can fix and release the holder 21. The above-mentioned fixing and release steps performed by the fixing members 31 and 32 will be described in detail below.

[0062] <Drilling method>

[0063] Next, the following uses Figure 3A to Figure 3F A method for drilling holes in a sheet S using the drilling device 1 of the above-described embodiment will be described.

[0064] Figure 3A 2 is a cross-sectional view showing a process of supplying a sheet S without a hole formed therein to the bottom of the holding member 2. Figure 3A As shown, a large number of needle members P are inserted into the holes h1 and h2 of the holder 21 and the pressing member 22. The sheet S is arranged on the upper surface of the supporting member 23 while the holder 21 and the pressing member 22 are held above the supporting member 23 with a gap therebetween.

[0065] Figure 3B It is shown in Figure 3A After that, the pressing member 22 is brought into contact with the upper surface of the sheet S disposed on the upper surface of the supporting member 23 to fix the sheet S. Figure 3BAs shown, first, only the pressing member 22 is lowered from the holding position and abuts against the sheet S, and is fixed to the base 4. Even in a state of being curled by being wound by the roll-shaped body S1, the sheet S is still fixed in a state of being uniformly stretched by the pressing member 22. The retaining frame 21 is still held above the pressing member 22 with a gap, and the needle member P is locked to the retaining frame 21 by the locking portion P1.

[0066] Figure 3C It is shown in Figure 3B After that, the retaining frame 21 into which a large number of needle components P are inserted is brought into contact with the pressing component 22 to be fixed. Figure 3C As shown, when the holder 21 is fixed to the base 4, the plurality of needle components P have not yet penetrated the sheet body S, and the front end P2 of the needle component P is in a state of nearly contacting the surface of the sheet body S. In this embodiment, the plurality of needle components P have different lengths, so the protrusion lengths of the plurality of needle components P above the holder 21 are different.

[0067] Figure 3D It is shown in Figure 3C After that, the cross-sectional view of the process of pressing the upper surface of the plurality of needle members P by the elastic roller member R is shown. Figure 3D As shown, the elastic roller member R is arranged on the upper surface of the needle member P, and is rotated while applying a predetermined pressure downward, thereby a large number of needle members P penetrate the sheet body S, and a large number of holes are formed on the sheet body S. At this time, the elastic roller member R is elastically deformed, and thus, even if the protruding lengths of the large number of needle members P to the upper side of the retainer 21 are different, the difference is absorbed, and a uniform pressure can be applied to the large number of needle members P. The elastic roller member R can also be rotated in a reciprocating manner on the upper surface of the large number of needle members P once or multiple times. The front end P2 of the needle member P that penetrates the sheet body S is inserted into the hole h3 of the support member 23, and is pressed to a position that abuts against the pedestal 4 arranged on the opposite side of the insertion side of the hole h3. As a result, a protrusion protruding to one side and a hole formed at the top of the protrusion are formed. In addition, by making the lengths of the large number of needle members P that penetrate the sheet body S uniform, the size of the hole formed in the sheet body S is made uniform.

[0068] Figure 3E It is shown in Figure 3D After that, a cross-sectional view of the process of pulling out a large number of needle components P from the sheet body S. Figure 3EAs shown in the figure, the holder 21 is moved upward while the sheet S is fixed by the pressing member 22 and the supporting member 23. At this time, the locking portion P1 is locked at the upper end of the holder 21, so that a large number of needle components P are pulled out from the sheet S as the holder 21 moves upward. In addition, by fixing the sheet S with the pressing member 22 and the supporting member 23, it is possible to prevent the sheet S from moving upward and wrinkling as the needle components P move when a large number of needle components P are pulled out from the sheet S.

[0069] Figure 3F It is shown in Figure 3E After that, the pressing member 22 is moved upwardly to the sheet S. Figure 3F As shown in FIG. 1 , by moving the pressing member 22 upward of the sheet S, the sheet S can be fed out.

[0070] <Movement of holding parts>

[0071] Next, use Figure 4A to Figure 4F An example of a structure for operating the holder 21 and the pressing member 22 as described above will be described.

[0072] Figure 4A and Figure 4B Plot corresponding to Figure 3A and Figure 3F , the retaining frame 21 and the pressing member 22 are held at an upper position with a gap therebetween from the supporting member 23 . Figure 4A is a side view of the hole-opening device 1 viewed from the Y direction, Figure 4B 1 is a side view of the hole-opening device 1 viewed from the X direction. Figure 4A and Figure 4B As shown, the pressing member 22 has a frame that can accommodate the holder 21, and the holder 21 is accommodated in the frame. Furthermore, the pressing member 22 has a hole through which the positioning portion 24 can be inserted, and the positioning portion 24 is fixed to the base 4. Thus, the holder 21 and the pressing member 22 are positioned.

[0073] exist Figure 4A and Figure 4B In the embodiment, the retaining frame 21 and the pressing member 22 are held above the supporting member 23 by means of sliding portions 21a and 22a, in a manner spaced apart from each other. The retaining frame 21 is placed on the sliding portion 21a, and the pressing member 22 is placed on the sliding portion 22a. The sliding portions 21a and 22a can move independently of each other in the Z direction, i.e., in the up-down direction. Such sliding portions 21a and 22a can also be plungers, for example. The above-mentioned plunger can be actuated manually or by means of a driving mechanism. The number of sliding portions 21a and 22a is not particularly limited, and for example, four sliding portions 21a and 22a can be provided at the corners of the retaining frame 21 and the pressing member 22, respectively.

[0074] Figure 4C and Figure 4D Plot corresponding to Figure 3B and Figure 3E The pressing member 22 is brought into contact with the upper surface of the sheet S disposed on the upper surface of the supporting member 23 to fix the sheet S. Figure 4C and Figure 4D As shown, by moving only the sliding part 22a downward without moving the sliding part 21a, only the pressing member 22 can be lowered and abutted against the sheet S. In this state, the pressing member 22 is pressed from above by the fixing member 31, and the sheet S is clamped and fixed between the pressing member 22 and the supporting member 23. The fixing member 31 is not particularly limited as long as it can fix and release the object, and for example, a toggle clamp can be used. Figure 4C and Figure 4D As shown in FIG. 1 , the head portion is pressed downward by operating the handle to fix the object. The number of fixing parts 31 is not particularly limited. Figure 1 As shown, one may be provided at each end in the Y direction, for a total of two.

[0075] Figure 4E and Figure 4F Plot corresponding to Figure 3C , so that the retaining frame 21 and the pressing member 22 are in contact and fixed. Figure 4E and Figure 4F As shown in FIG. 1 , the slide portion 22a and the slide portion 21a are moved downward, so that the holder 21 can be lowered and abutted against the pressing member 22. In this state, the holder 21 is pressed from above by the fixing member 32, and the holder 21 is fixed to the pressing member 22. The structure of the fixing member 32 can be the same as that of the fixing member 31.

[0076] As the procedure for raising the holder 21 and the pressing member 22, the procedure opposite to the above can be adopted. That is, the holder 21 can be raised by moving the sliding part 21a upward after releasing the fixing by the fixing member 32. Furthermore, the pressing member 22 can be raised by moving the sliding part 22a upward after releasing the fixing by the fixing member 31. In the case where the sliding parts 21a and 22a are plungers, the upward movement can also be caused by the force of the spring.

[0077] As mentioned above, although the preferred embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and appropriate changes can be made.

[0078] Reference numerals

[0079] 1. Opening device

[0080] 2. Keep the components

[0081] 21 Cage

[0082] 22 Pressing parts

[0083] 23 Supporting parts

[0084] h1, h2, h3 hole

[0085] P Needle Parts

[0086] P1 stopper

[0087] P2 frontend

[0088] R Elastic roller component

[0089] S sheet

Claims

1. A hole-opening device, which is a device for opening a large number of holes on a sheet, having: a holding member that holds a plurality of needle members so as to be able to move up and down; and, The elastic roller member presses the upper surface of the plurality of needle members in a state where the sheet body is fixed below the holding member.

2. The hole-opening device according to claim 1, in, The plurality of needle members include a locking portion locked to an upper end of the holding member.

3. The hole-opening device according to claim 1, in, The holding member includes a holding frame for holding the plurality of needle members, and a pressing member disposed below the holding frame.

4. The hole opening device according to claim 1, in, The aforementioned sheet body can be cold worked.

5. The hole opening device according to claim 1, in, The holding member has a hole portion through which the plurality of needle members can be inserted. The diameter of the hole portion is larger than the diameter of the plurality of needle members.

6. The hole opening device according to claim 1, in, The sheet is fixed on top of the supporting member. The supporting member has a hole portion into which at least the distal ends of the plurality of needle members can be inserted.

7. A method for drilling a hole in a sheet using the drilling device according to claim 1, comprising: The step of disposing the sheet below the holding member; A step of fixing the holding member against the upper surface of the sheet body; and A step of pressing the upper surfaces of the plurality of needle members by the elastic roller member.

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