JPS6320065A - Device for producing spacer plate - Google Patents

Abstract

PURPOSE:To continuously form high-quality spacer plate at high speed by forming the adhesive layer of an adhesive necessary for the lamination of the spacer plates on the top ends of respective formed resinous ribs. CONSTITUTION:The device for producing a spacer plate is provided with a resin feeder 4, a stencil paper feeder 5, and an adhesive layer forming device 8. An adhesive is continuously coated on the top end of the resinous rib 6 transferred on the transfer stencil paper W by a roll coater 12 in the adhesive layer forming device 8. The stencil paper W with the transferred resinous rib 6 is reversed and introduced into the roll coater 12 through a goup of rollers, the stencil paper W coated with the adhesive is again reversed to place the resinous rib 6 on the upper surface, and sent out. As a result, the adhesive layer of an adhesive necessary for the lamination of the spacer plates can be continuously formed in uniform thickness on the top ends of the formed resinous ribs. Accordingly, a high-quality spacer plate can be continuously formed at high speed.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to spacing plates having a spacing structure that are constituent elements of corrugated paper, laminated cross-section batteries, laminated cross-section heat exchangers, etc. This paper relates to an apparatus for manufacturing a spacer plate whose structure is made of resin.

[Prior Art] The spacing plate having the above-mentioned structure is also called a separator or the like and has been a component in various laminated products. The material differs depending on the product to which it is applied.The structure of the material is that ribs or protrusions made of resin are formed in a row of teeth on one side of a flat plate material, which can be called a film or sheet, to maintain space when laminated. be. Conventionally, such spacing plates have been manufactured using apparatuses and methods disclosed in Japanese Patent Application Laid-open No. 57-205966 and Japanese Patent Application Laid-Open No. 54-7243. In other words, it is manufactured by heat-sealing resin monofilaments that form the ribs onto a flat plate material, or by linearly applying highly viscous adhesive resin to the flat plate material to harden it. The latter method is easier to handle for continuous production than the former, so the third method was adopted.
Manufacturing using the equipment shown in the figure has been put into practical use (i.e., a highly viscous adhesive (81) is fed under pressure to a plurality of gun nozzles arranged in a straight line, at right angles to the arrangement direction of one gun nozzle. The flat plate material 20 is moved in the direction of
The resin is allowed to flow down onto the surface of the material, causing it to harden.

Thereby, the same number of ribs 21 as the number of gun nozzles 19 can be continuously formed on the upper surface of the flat plate material 20 at one time.

[Problems to be Solved by the Invention] It is difficult to continuously form ribs with the method and apparatus disclosed in Japanese Patent Application Laid-Open No. 57-205966 as the above-mentioned prior art. On the other hand, according to the conventional technique shown in FIG. 3, it is possible to form the ribs 21 continuously to some extent, but minute fluctuations in the amount of resin discharged from the gun nozzle 19 change the cross-sectional shape of the ribs 21. Not only is it difficult to obtain ribs 21 with constant dimensions and shape,
The shape of the ribs 21 depends on the surface tension of the resin, resulting in a semi-cylindrical shape, and the required height of the ribs 21 cannot be achieved without increasing the viscosity of the resin, so there is a problem that it is difficult to obtain even if the amount of resin is increased. There is. Furthermore, when the resin being discharged is subjected to the vibrations of the device and the effects of airflow, the ribs 21 may meander, so there is a problem that the accuracy of the pitch of the ribs 21 cannot be maintained.

This invention was made in order to solve these conventional problems, and the size and shape of the resin ribs are stable, there is a high degree of freedom in setting the shape, and the adhesive layer required when laminating is continuously formed. The object of the present invention is to obtain a manufacturing apparatus for a spacer plate that can be formed into a spacer plate.

[Means for Solving the Problems] A spacer plate manufacturing apparatus according to the present invention includes a transfer roller having a plurality of annular molding grooves formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery. , a resin supply device that supplies hot-melt type molten resin to the annular molding groove of the transfer roller through a nozzle, and a base paper that feeds the transfer raw paper at a predetermined speed to the outer peripheral surface of the transfer roller to which the resin has been supplied. It is equipped with a supply device and an adhesive layer forming device having a rotating application roller that applies a low melting point adhesive onto each top end of double rows of resin ribs formed on one side of a transfer base paper by a transfer roller. be.

[fi: Use] In this invention, a plurality of annular molding grooves formed in the circumferential direction of the transfer roller and having a predetermined cross-sectional shape are filled with molten resin that will become the resin ribs, and the size and shape of the grooves are constrained.
Transfer base paper 3 is fed to the outer peripheral surface of the transfer roller at a predetermined speed by a base paper supply device, and a double row of resin ribs corresponding to the size and shape of the annular forming groove is continuously formed on one side of the transfer base paper. This makes it possible to continuously form an adhesive layer of uniform thickness on the top end of each molded resin rib, which is necessary when laminating the spacer plates.

[Example] Figure 1 shows a spacing board manufacturing apparatus as an example of the present invention. The latter method can be called a flowing method, in which resin ribs are formed by flowing down, whereas the resin ribs are transferred to a transfer base paper (not necessarily paper, but a thin, low-rigid paper). (This is a generic name for flat plate materials such as

The manufacturing apparatus of this example includes a transfer roller 2 having a plurality of annular forming grooves 1 formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery, and a hot melt type forming groove 1 in the annular forming groove 1 of the transfer roller 2. a resin supply device 4 for supplying molten resin by a gun nozzle 3; a base paper supply device 5 for conveying a transfer base paper W at a predetermined speed to the outer peripheral surface of the transfer roller 2 supplied with resin; It is equipped with an adhesive layer forming device 8 that applies a low melting point adhesive onto each top end of the double rows of resin ribs 6 formed by the rollers 2 to form an adhesive layer 7.

In the figure, the transfer roller 2 is horizontally supported and rotated in a fixed direction by a motor via a speed reducer. The transfer roller 2 has double rows of annular forming grooves 1 continuous in the circumferential direction on its outer periphery at predetermined intervals in the center line direction. The molding groove 1 is the resin rib 6 to be formed.
It is formed to have a cross-sectional shape and dimensions that match the cross-sectional shape and dimensions of. In other words, there is no need to take a semicylindrical shape as in the conventional flow-down method, and it is sufficient to select a groove shape that is most suitable for the purpose of spacing plates, etc., and is less prone to burrs, as long as the groove bottom side does not expand. The surface of the annular molding II is coated with a resin such as tetrafluoroethylene to improve releasability from the resin.

The resin supply device 4 consists of a hot melt nozzle 9 and a hose and gun nozzle 3.

The hot melt applicator 9 has a gear pump built into the resin melting furnace, and the molten resin is passed through a hose to a gun.
Pressure is sent to nozzle 3. The gear pump pumps out the molten resin in proportion to the rotation speed of the transfer roller 2 using an SCR (rotation control device). The gun nozzle 3 connected to the real melt applicator 9 with a hose is placed on the rotation axis of the transfer roller 2 above the transfer roller 2 so that each ejection port corresponds one-to-one to each annular forming groove 1. The annular molding II is fixed to the machine frame of No. 2 and corresponds to each jet nozzle.
The pressure-fed molten resin is discharged from a nearby position. The resin to be fed into the Hoy Melt Applicator 9 is hot melt type ethylene vinyl acetate with strong adhesive properties, APP (regenerated gas from the production of polypropylene), etc. This is heated to about 120 to 180°C and then pumped.

The base paper supply device 5 has a configuration of a paper feeding section from an unreel that holds a rolled base paper W for transfer to just before the transfer roller 2, a configuration of a transfer section of the transfer roller 2 portion, and a configuration of a transfer section of the transfer roller 2 portion.
It can be roughly divided into the structure of the delivery section in the latter stage. The unreel is moved in a direction perpendicular to the traveling direction of the transfer base paper W by a controller operated by a signal from the shift detection device to center the transfer base paper W. Further, it is possible to prevent the transfer base paper W from being excessively fed due to rotation due to inertia by applying a brake in response to a stop signal. The above deviation detection device is an air type.

The shift of the transfer base paper W in the width direction is detected by a phototube or the like, and the unreel is driven via a controller. The rear end of the sheet feeding section is a guide roller 10 provided in front of the gun nozzle 3 provided above the transfer roller 2 with respect to the rotational direction (clockwise direction in the drawing) of the transfer roller 2 . The guide roller 10 is disposed within the projection radius of the transfer roller 2, and brings the transfer base paper W into close contact with the transfer roller 2 together with a presser roller 11 that contacts the lower end of the transfer roller 2, which constitutes a sending section.

The adhesive layer forming device 8 includes a roll coater 12 that continuously applies adhesive onto the top ends of the resin ribs 6 transferred to the transfer raw paper W, and a roll coater 12 that turns over the transfer base paper W on which the resin ribs 6 have been transferred. It consists of a roller group on the introduction side that guides the transfer paper W coated with adhesive into the roll coater 12, and a group of rollers on the delivery side that reverses the adhesive-coated transfer base paper W again and sends it out with the resin ribs 6 facing upward. The roll coater 12 heat-melts the adhesive and uses a rotating application roller 13 to apply the adhesive to the resin ribs 6 of the transfer base paper W that are pressed against the application roller 13 by an air cylinder 14 and in pressure contact with the application roller 13 . A guide roller 1 is installed on the rod of the air cylinder 14 so as to straddle the application roller 13.
5 is attached so that the transfer base paper W is in sufficient contact with the application roller 13. Note that the rotation direction of the application roller 13 is set according to the transfer base paper W in order to ensure good application of the adhesive.
The direction of movement is opposite to that of . In the illustrated example, the introduction-side roller group is composed of four non-driven rollers.

The foremost roller 16 has a resin rib 6 mf.
Guide grooves 17 are formed at equal intervals to the resin ribs 6. The group of rollers on the sending-out side includes three rollers 18 with guide wheels 17 including a driving roller.

Thus, the transfer base paper W held by the unreel is pulled by the rotation of the transfer roller 2, and is brought into close contact with the transfer portion of the transfer roller 2 in a manner such that it is wrapped around the transfer portion of the transfer roller 2 without slipping or loosening. Each molding groove 1 of the transfer roller 2 is continuously filled with a fixed amount of molten resin from the resin supply device 4, and the molding groove 1 filled with the molten resin is shaped like a groove, and the outer periphery of the transfer roller 2, which is no longer deaf, is filled with the molten resin. The transfer base paper W is brought into close contact with the paper continuously,
Formation of the resin ribs 6 by transfer onto the transfer base paper W is performed continuously. The molten resin filled in the molding groove 1 hardens in parallel with the transfer to the transfer base paper W, and becomes a resin rib 6 having the same cross-sectional shape as the molding groove 1 and is fixed on one side of the transfer base paper W. be. The transfer base paper W on which the resin ribs 6 are fixed is
It can already be called a spacing plate, and is successively torn off from the transfer roller 2 at its lower end and sent rearward.

Immediately, the feeding position is defined by the roller 18 in the guide groove 17, and the roller group turns the resin rib 6 into an inverted position facing downward, and the resin is sent to the roll coater 12. is applied to a uniform thickness. This i& is re-inverted while being defined at a feeding position 3 by a group of rollers on the sending-out side, and sent to a subsequent stage with the resin rib 6 facing upward. Roll coater 12
An adhesive layer 7 of a constant thickness is formed on each top end surface of the resin rib 6 that has passed through. Then, by cutting them to predetermined dimensions and laminating them as shown in Fig. 3, and melting the adhesive layer 7 to generate adhesive force, articles such as heat exchangers can be easily made by laminating the spacer plates. be able to.

The features of this spacer plate manufacturing device are that the cross-sectional shape of the resin rib 6 can be freely set, its height can be defined by the molding groove 1 without depending on the viscosity of the resin, and the light melting
d! By filling the molding groove 1 with oil, it is not subject to disturbance requirements such as air flow or vibration during transfer, and high-precision, high-quality spacing plates can be obtained rapidly and continuously using a small amount of resin material, and the adhesive layer required during lamination. 7 can be continuously molded onto the resin rib 6 with a uniform thickness.

[Effects of the Invention] As is clear from the above description of the embodiments, the spacer plate manufacturing apparatus of the present invention has a plurality of annular forming grooves formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery. A transfer roller, a resin supply device that supplies a hot-melt type molten resin to the annular molding groove of the transfer roller through a nozzle, and a transfer base paper that is applied at a predetermined speed to the outer peripheral surface of the transfer roller to which the resin has been supplied. and an adhesive layer forming device having a rotating application roller that applies a low melting point adhesive onto each top end of double rows of resin ribs formed on one side of the transfer base paper by a transfer roller. Because of this, the molten resin that will become the resin ribs is filled into the plurality of annular grooves formed in the circumferential direction of the transfer roller and has a predetermined cross-sectional shape, and while constraining the size and shape, the outer circumference of the transfer roller is By feeding the transfer base paper at a predetermined speed with a base paper feeding device, double rows of resin ribs that match the size and shape of the annular forming groove can be continuously formed on one side of the transfer base paper. It is possible to continuously form an adhesive layer of uniform thickness on the top end of each resin rib, which is necessary when laminating the spacer plates. In other words,
It is possible to continuously form high-quality spacing plates at high speed, which also have the adhesive layer necessary for lamination.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram showing the configuration of a manufacturing apparatus as an embodiment of the present invention, and FIG. FIG. 3 is an explanatory view showing a temporarily laminated interlayer state, and FIG. 3 is a perspective view showing a conventional example. In the figure, 1 is a forming groove, 2 is a transfer roller, 3 is a gun nozzle, /1 is a resin supply device, 5 is a base paper supply device, 6 is a resin rib, 7 is an adhesive layer, 8 is an adhesive layer forming device, 9 is a hot null 1-applicator, 12 is a roll coater, 13 is an application roller, 16.18 is a roller,
17 is a guide groove, and ~V is a transfer base paper. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa (2 Ike) Procedural amendment party volunteer) September 6, 1985, 1, Indication of case Patent application No. 165958 1988 2,
Title of the invention Spacing plate manufacturing apparatus 3, Representative of the person making the amendment Moriya Shiki 5, Detailed description of the invention column 6 of the specification subject to the amendment, Contents of the amendment (1), Page 8 of the specification The description of "gas" in the 13th line is corrected to "dregs". (2) The description of "clockwise" on page 9, line 11 to line 12 of the specification is amended to "counterclockwise." (3) "Roller 18" on page 11, line 19 of the specification
The description of ``roller 16'' has been corrected to ``roller 16''. (4) The description of "roller details" on page 12, line 4 of the specification is corrected to "three rollers 18 with guide grooves 17." (5), “3rd (2I)” on page 12, line 9 of Mei 4I
The description in ``Figure 2'' has been corrected. that's all

Claims (2)

[Claims] (1) A transfer roller with a plurality of annular molding grooves formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery, and hot-melt type molten resin is applied to the annular molding grooves of this transfer roller using a nozzle. a resin supply device that supplies the resin, a base paper supply device that feeds the transfer base paper at a predetermined speed to the outer peripheral surface of the transfer roller to which the resin has been supplied, and a double row of resin formed on one side of the transfer base paper by the transfer roller. and an adhesive layer forming device having a rotating application roller for applying a low melting point adhesive onto each top end of the ribs. (2) A patent in which the adhesive layer forming device is equipped with rollers having guide grooves that correspond to and receive double rows of resin ribs formed on one side of the transfer base paper before and after the application roller. An apparatus for manufacturing a spacing plate according to claim 1.