JPH079044A - Working and producing device of steel sheet with heat insulating material - Google Patents

Abstract

PURPOSE:To obtain low cost steel sheets with heat insulating material which are formed by joining a thin heat insulating material to steel sheets in good looking and with stable quality so as the sheets are workable and grazings and working flaws by a stripper are not generated on the punched surface even when working shapes are complicated and joining area is large. CONSTITUTION:In a steel sheet with heat insulating material 8 integrally formed by joining a metal base sheet 1 and heat insulating resin sheet 2, the steel sheet 8 is punched from the surface of heat insulating resin sheet 2. A static eliminating device 21 is provided. Pressure adjusting springs are provided on transfer devices 13 and 14. The stripper 19 is made of a material having low elastic deformation. A film releasing device is provided on a metallic die stand 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of processing a steel sheet with a heat insulating material, in which a resin foam is integrally formed on a metal substrate, and an apparatus for producing the steel sheet.

[0002]

2. Description of the Related Art Conventionally, in the case of manufacturing a steel sheet with a heat insulating material of this type, as shown in FIG. 6, a metal substrate 1 and a heat insulating material 2 which is a resin foam are attached to one surface of the heat insulating material 2 with an adhesive surface. It is attached to the metal substrate 1 by utilizing it, or as shown in FIG.
The metal substrate 1 and the heat insulating material 2 which are separately formed and processed.
Is manually attached to the necessary surface of the processed metal substrate 1,
It was manufactured.

[0003]

With the above-mentioned conventional steel sheet with a heat insulating material, which has been pasted in advance, it is difficult to perform additional processing thereafter, and the work shape is complicated when manually pasted on a worked metal substrate. This is not only difficult in some cases, but when the press shape is complicated or there are many places such as punched holes or notches, alignment with the heat insulating material is difficult. Also, in the case of a thin heat insulating material, especially if the adhesion area is large, it can not be hand-attached due to bending, so it is necessary to take measures such as dividing, not only increasing the processing cost as a whole However, the manual attachment method has a problem in that the attachment state is not stable and there is no choice but to leave a quality problem.

The present invention has been made to solve the above problems, and an object of the present invention is to integrally mold a metal substrate and a heat insulating material, which is a resin foam, and perform simultaneous processing. By doing so, it is an object of the present invention to provide a processing method capable of attaching and processing the heat insulating material with good appearance and stable quality and at low cost even when the processing shape is complicated and the adhesion area is wide.

[0005]

A method for processing a steel sheet with a heat insulating material and a manufacturing apparatus for the steel sheet according to the present invention are: a steel sheet with a heat insulating material integrally formed by joining a metal substrate and a heat insulating resin sheet, The heat insulating resin sheet is punched from the surface side. Further, in a manufacturing apparatus in which a material stocker, a processing machine, and a product stocker are sequentially arranged, a static electricity removing device is provided in a key part of the manufacturing process. Further, in a manufacturing apparatus in which a material stocker, a processing machine, a product stocker, and a transfer device that carries in and out a steel plate with a heat insulating material integrally formed by joining a metal substrate and a heat insulating resin sheet are sequentially arranged, The adsorption part of the transfer device for adsorbing from the heat insulating resin sheet surface side,
It is held by a supporting member of the transfer device via an elastic body. Further, in a die punch with a stripper used for punching, the material of the stripper is a material having a small elastic deformation. Further, in a die punch used for punching, a punch residue removing device is provided on the die punch base portion.

[0006]

According to the method for processing a steel sheet with a heat insulating material and the apparatus for manufacturing the steel sheet configured as described above, the punching is always performed from the heat insulating resin sheet surface side. Further, a static electricity eliminator is provided at a key part of the manufacturing process to eliminate static electricity generated during the process of processing the steel plate with the heat insulating material to the outside. Further, the suction portion of the transfer device is held by the supporting member of the transfer device via the elastic body, and the suction force is adjusted by the elastic body, so that even adhesion of the steel sheet with the heat insulating material is carried out. Further, the material of the stripper of the metal punch with a stripper is a material with less elastic deformation to prevent the heat insulating resin sheet surface from being scratched after pressing. Further, a punch residue removal device is provided on the base of the die punch to reliably remove the punch residue of the steel plate with the heat insulating material attached to the die punch.

[0007]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a manufacturing process of a steel sheet with a heat insulating material according to the present invention. 1 is a metal substrate which is a raw material, 2
Is a heat insulating resin sheet which is a raw material, 3 is an adhesive application roller, 4 is an adhesive stocker, and 5 is a drying oven. An adhesive (for example, a rubber-based adhesive) is applied to the surface of the metal substrate 1 from the adhesive stocker 4 with a constant film thickness by the adhesive application roller 3. After being dried at a constant temperature, the heat insulating resin sheet 2 is compression-integrally molded by the compression upper roller 6 and the compression lower roller 7, and then cut into a certain size to form the heat-insulating steel plate 8. Next, the steel plate 8 with a heat insulating material, which has been cut into the predetermined size, is inserted into the material stocker 9. The inserted heat-insulating steel plate 8 is transferred to N / C turret punch presses 10 and 11 by transfer devices 13 and 14.
And moved or cut or pressed.
The transfer devices 13 and 14 include an electromagnetic adsorption unit 1
5 and 16 are provided in plurality, and the steel plate 8 with the heat insulating material is provided.
Are electromagnetically attracted and moved. The steel plate 8 with heat insulating material processed by the N / C turret punch presses 10 and 11 is stored in the product stocker 12.

In such a structure, the heat-insulating steel plate 8 is always carried in or out with the surface of the heat insulating resin sheet 2 facing up. Since the steel plate 8 with the heat insulating material is adsorbed by the electromagnetic adsorption portion 15 of the transfer devices 13 and 14, the adsorption force is stronger when the metal substrate 1 is loaded and unloaded with the surface thereof facing up,
In this case, since the surface of the heat insulating resin sheet 2 is faced down, when the N / C turret punch presses 10 and 11 are punched, the metal substrate 1 is deformed in a wavy state. That is, when the heat insulating resin sheet 2 is partially compressed, the metal substrate 1 on the upper surface is locally deformed.
The degree of occurrence is remarkable in the case of the heat insulating resin sheet 2a made of closed cells having a small degree of compression, and is small in the case of the heat insulating resin sheet 2b made of continuous cells having a large degree of compression. In the latter case, since the degree of compression is large, the metal substrate 1 is uniformly compressed and is unlikely to be deformed. Therefore, in order to eliminate the deformation of the metal substrate 1, the heat insulating material-coated steel plate 8 needs to be punched so that the surface of the heat insulating resin sheet 2 is always faced up so as not to be affected by the compressive force.

In order to minimize the punching process, it is also important to cut the steel sheet 8 with a heat insulating material into a predetermined size before the punching process. That is, the more the post-processing of the steel sheet 8 with the heat insulating material is, the more likely the trouble such as scratches occurs. Therefore, in order to suppress the occurrence of this trouble to the minimum, it is important to cut the steel sheet 8 with the heat insulating material in advance to the external dimensions after the finishing.

Embodiment 2. FIG. 2 is a simplified perspective view of the static electricity removing device 21 provided in the product stocker 12. Since the steel plate 8 with a heat insulating material has a two-layer structure of the metal substrate 1 and the heat insulating resin sheet 2, static electricity is generated due to friction during transfer or during stocking after processing, and it is necessary to remove this. In FIG. 3, the static electricity removing device 21 is provided at one end of the product stocker 12 in which the steel plates 8 with heat insulating material are vertically stacked.
The static electricity removing drive device 24 moves the static electricity removing brush 22 composed of a conductor (such as a metal brush) up and down (for example, about the thickness of the heat insulating structure pressing member), and the static electricity generated in the steel plate 8 with the heat insulating material is grounded 25. To act to escape. By doing so, for example, after the processing is completed, it is not necessary for the worker to carry out the static electricity removal work and then carry out the processed product.

Embodiment 3. FIG. 3 shows the transfer device 1.
FIG. 3 is a simplified cross-sectional view of electromagnetic attraction units 15 and 16 of 3 and 14.
Reference numeral 29 is a metal support for the electromagnetic attraction portions 15 and 16 provided on the transfer devices 13 and 14. Reference numeral 26 denotes a pressure adjusting spring, which has a function of uniformly adhering to the attracting surface of the steel plate 8 with the heat insulating material in a plurality of electromagnetic attracting portions. Even when corrugated on the surface of the steel plate 8 with heat insulating material, the steel plate 8 with heat insulating material adheres evenly and together with the scratch preventing ring 27 provided in an arc shape on the entire circumference of the electromagnetic attracting portion, scratches during movement of the steel plate 8 with heat insulating material. Acts to prevent. 28 is an electromagnetic coil. Normally, the pressure adjusting spring 26 is not necessary for the transfer of the steel sheet, but in the case of the steel sheet 8 with the heat insulating material, the suction portion is the surface of the heat insulating resin sheet 2, so the pressure adjustment according to the material is required.

Embodiment 4. FIG. 4 is a simplified sectional view of a press working portion of the N / C turret punch presses 10 and 11.
(7 is a drive device for the N / C turret punch presses 10 and 11, which presses by moving the die punch 20 up and down by power. At this time, the stripper 19 is pressed against the steel plate 8 with the heat insulating material to heat the heat insulating material. Steel plate 8 attached to die punch 2
The operation of separating 0 is performed, but at this time, the stripper 1
If the material of 9 is a material having a large elastic deformation, the stripper is deformed and, for example, a ring-shaped scratch on the outer diameter of the stripper 19 is formed on the surface of the heat insulating resin sheet 2. Therefore, the material of the stripper 19 is a material with a small elastic deformation, for example, the longitudinal elastic modulus is 6.3 × 10 ³ kg / mm ² or more, and the R portion is provided on the outer peripheral surface so that the surface of the heat insulating resin sheet 2 can be contacted. To do it. By doing so, the heat insulating resin sheet 2
It is possible to prevent scratches on the surface.

Embodiment 5. FIG. 5 is a sectional view of the die punch base. Denoted at 31 is a detaching device provided on the die stand 30. For example, a rubber material is provided on the entire circumference of the penetrating portion of the die punch 20. The operation is as follows.
When the steel plate 8 with heat insulating material is punched by the die punch 20, punched dust penetrates the detaching device 31. Next, die punch 2
When 0 moves in the homeward direction, the scraps are removed by the contact with the separating device 31 and are prevented from adhering to the die punch 20. Therefore, scratches and the like on the steel plate 8 with the heat insulating material due to double punching (punching another place while leaving punch residue) are eliminated.

The heat-insulating steel plate 8 processed in the above manufacturing process is bent by the bending machine 23 in accordance with the product form to be a product. The N / C turret punch presses 10 and 11 are the same for a plurality of or single equipments, and the same effect can be obtained for other press machines.

[0015]

As described above, according to the present invention, since the integrally formed steel sheet with a heat insulating material is punched from the heat insulating resin sheet side, the deformation of the metal substrate can be suppressed to a minimum. Further, by providing a static electricity eliminator at a key part of the manufacturing process, the static electricity generated in the steel sheet with heat insulating material is released to the ground to improve work efficiency. Further, by holding the suction portion of the transfer device on the support member of the transfer device via the elastic body, it is possible to uniformly adhere to the suction surface of the steel plate with the heat insulating material. In addition, since the stripper of the die punch is made of a material that is less elastically deformed, it does not deform during processing, and thus it is possible to prevent the heat insulating resin sheet surface from being scratched. Further, by providing a punch residue removal device on the base of the die punch, the punch residue of the steel sheet with the heat insulating material attached to the die punch is reliably removed, and the steel sheet with the heat insulating material is prevented from being scratched.

Therefore, even if the processed shape is complicated and the adhesion area is large, the heat insulating material can be attached and processed with good appearance and stable quality and at low cost.

[Brief description of drawings]

FIG. 1 is a manufacturing process diagram of a steel sheet with a heat insulating material according to an embodiment of the present invention.

FIG. 2 is a simplified perspective view of a static eliminator according to an embodiment of the present invention.

FIG. 3 is a simplified cross-sectional view of an electromagnetic attraction unit of a transfer device according to an exemplary embodiment of the present invention.

FIG. 4 is a simplified sectional view of a press working portion of an N / C turret punch press according to an embodiment of the present invention.

FIG. 5 is a sectional view of a die punch base according to an embodiment of the present invention.

FIG. 6 is a manufacturing process diagram of a conventional steel plate with a heat insulating material.

FIG. 7 is a method of manufacturing a steel sheet with a heat insulating material by a conventional manual attachment work.

[Explanation of symbols]

 1 Metal Substrate 2 Heat Insulating Resin Sheet 8 Steel Plate with Heat Insulating Material 9 Material Stocker 10, 11 N / C Turret Punch Press 12 Product Stocker 13, 14 Transfer Device 15, 16 Electromagnetic Adsorption Part 19 Stripper 20 Die Punch 21 Static Elimination Device 26 Pressure Adjustment spring 30 Mold base 31 Release device

Claims (5)

[Claims] 1. A method of processing a steel sheet with a heat insulating material, comprising: a steel sheet with a heat insulating material integrally formed by joining a metal substrate and a heat insulating resin sheet, wherein the steel sheet with a heat insulating material is punched. 2. A manufacturing apparatus for a steel plate with a heat insulating material, comprising a material stocker, a processing machine, and a product stocker, which are sequentially arranged, and a static eliminating device is provided at a key part of the manufacturing process. 3. A manufacturing apparatus in which a material stocker, a processing machine, a product stocker, and a transfer apparatus for sequentially carrying in and out a steel plate with a heat insulating material integrally formed by joining a metal substrate and a heat insulating resin sheet are sequentially arranged. An apparatus for manufacturing a steel sheet with a heat insulating material, characterized in that the suction portion of the transfer device for sucking the steel sheet with a material from the surface of the heat insulating resin sheet is held by a supporting member of the transfer device via an elastic body. 4. The method for processing a steel sheet with a heat insulating material according to claim 1, wherein, in the die punch with a stripper used for punching, the material of the stripper is a material having a small elastic deformation. 5. The method for processing a steel sheet with a heat insulating material according to claim 1, wherein in a die punch used for punching, a punch residue removing device is provided on the die punch base portion.