JPH0738962B2 - Space plate manufacturing equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a spacing plate having a spacing structure, which is a constituent element of corrugated paper, a battery having a laminated structure, a heat exchanger having a laminated structure, and more particularly, a spacing structure. Relates to an apparatus for manufacturing a spacing plate made of resin.

[Prior Art] The spacing plate having the above-described configuration is also called a separator or the like, and has been a component in articles having various laminated structures. Although the material is different depending on the article to be applied, its structure is that a rib or ridge made of resin that retains a space when laminated is formed in a tooth row shape on one surface of a flat plate material called a film or a sheet. The manufacture of such a spacing plate has hitherto been carried out by the apparatus and method disclosed in JP-A-57-205966 and JP-A-54-7243. That is, it has been manufactured by heat-sealing a monofilament of a resin to be ribs to a flat plate material by heat sealing, or by linearly applying a resin having high viscosity and adhesiveness to the flat plate material and curing it. Since the latter is easier to handle continuous production than the former, production with an apparatus as shown in FIG. 5 has been put into practical use. That is, resin having high viscosity and adhesiveness is pressure-fed to a plurality of gun nozzles 25 arranged in a straight line, and a flat plate material 26 is formed in a direction perpendicular to the arrangement direction of the gun nozzles 25.
The resin is moved down to flow onto the flat plate material 26, and the resin is cured. As a result, the same number of ribs 27 as the gun nozzles 25 can be continuously formed on the upper surface of the flat plate member 26 at one time.

[Problems to be Solved by the Invention] With the method and apparatus disclosed in Japanese Patent Application Laid-Open No. 57-205966, it is difficult to continuously form ribs. On the other hand, according to the prior art shown in FIG. 5, it is possible to continuously form the rib 27 to some extent, but a slight variation in the discharge amount of the resin from the gun nozzle 25 causes a rib change.
Ribs that change the cross-sectional shape of 27 and have a constant dimensional shape
Not only is it difficult to obtain 27, but since the shape of the rib 27 depends on the surface tension of the resin, it becomes a semi-cylindrical shape, and the required height of the rib 27 cannot raise the viscosity of the resin indiscriminately. There is a problem that it is difficult to obtain even if the amount is increased. Furthermore, if the resin being discharged is subjected to the vibration of the device and the action of the air flow, the rib 27 may meander, and therefore the rib 27
It also includes the problem that the accuracy of the pitch can not be maintained.

The present invention has been made to solve the above-mentioned conventional problems, and the resin rib has a stable dimension and shape, and the degree of freedom in setting the shape is also high. The purpose of the present invention is to obtain an apparatus for manufacturing a spacer plate that can be formed.

[Means for Solving Problems] A manufacturing apparatus of a spacing plate according to the present invention includes a rotating transfer roller having a plurality of annular molding grooves formed in the circumferential direction on the outer periphery and having a cooling function. , A resin supply device for supplying molten resin of hot-melt type to each molding groove of the transfer roller by a nozzle, and a base paper supply device for sending the transfer base paper to the outer peripheral surface of the transfer roller to which the resin is supplied at a predetermined speed The transfer base paper is applied to the outer peripheral surface of almost half of the transfer roller, and the resin in the molding groove is continuously pressed by the roller against the transfer base paper while the resin is in multiple rows due to the adhesiveness of the resin. The ribs are formed by transfer.

[Operation] In the present invention, the molten resin forming the resin ribs is filled in a plurality of annular molding grooves formed in the circumferential direction of the transfer roller and having a predetermined cross-sectional shape, and the dimension and shape are constrained,
The transfer base paper 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 matching the size and shape of the above-mentioned annular molding groove is transferred to one side of the transfer base paper by transfer that is not easily disturbed. It can be continuously formed at high speed by utilizing the adhesiveness of the resin.

[Embodiment] All of FIGS. 1 to 4 show a spacing plate manufacturing apparatus as an embodiment of the present invention. The apparatus of any of the embodiments shown in the figures is one in which the conventional manufacturing apparatus heat-bonds or discharges the resin to form resin ribs, and the latter can be called a so-called downflow method. As opposed to
A resin rib is formed on a transfer base paper by transfer (which is a generic name for a thin flat sheet material having low rigidity, not necessarily indicating a paper). In this sense, a transfer-type spacing plate manufacturing apparatus Should be said.

The configuration common to each embodiment is that the transfer roller 2 is provided with a plurality of annular forming grooves 1 formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery, and the annular forming groove 1 of the transfer roller 2 is hot. A resin supply device 4 for supplying a melt type melted resin by a gun nozzle 3 and a base paper supply device 5 for sending a transfer base paper W to the outer peripheral surface of the transfer roller 2 supplied with the resin at a predetermined speed. is there.

In the embodiment shown in FIG. 1, the transfer roller 2 is horizontally supported and is rotated at a low speed in a fixed direction by a motor 7 via a speed reducer 6. The transfer roller 2 is provided with a plurality of annular molding grooves 1 continuous in the circumferential direction on the outer periphery of the transfer roller 2 at predetermined intervals in the center line direction. The annular molding groove 1 is formed to have a cross-sectional shape and dimensions that match the cross-sectional shape and dimensions of the resin rib 8 to be formed. That is, it is not necessary to take the shape of a semi-cylindrical shape as in the conventional flow-down method, and if the shape of the groove bottom side does not widen, the groove shape that is most suitable for the use of the spacing plate and is less likely to cause burrs may be selected. The surface of the annular molding groove 1 is coated with a resin such as tetrafluoroethylene in order to improve the releasability from the resin, and the transfer roller 2 is provided with a cooling function to cure the molten resin in a short time. ing.

The resin supply device 4 comprises a hot melt applicator 9, a hose 10 and a gun nozzle 3. The hot melt applicator 9 has a structure in which a gear pump is built in a resin melting furnace, and the molten resin is pressure-fed to the gun / nozzle 3 via a hose 10. The gear pump pumps out the molten resin in proportion to the number of rotations of the transfer roller 2 by SCR (rotation control device). The gun / nozzle 3 connected to the hot melt applicator 9 by the hose 10 is transferred onto the rotary shaft of the transfer roller 2 above the transfer roller 2 so that each ejection port corresponds to each annular molding groove 1 in a one-to-one correspondence. It is fixed to the machine frame of roller 2,
The molten resin pressure-fed to the annular molding groove 1 corresponding to each ejection port is discharged from the adjacent position. The resin to be added to the hot melt applicator 9 is, for example, hot-melt type strong adhesive ethylene vinyl acetate or APP (regenerated gas at the time of polypropylene production). It is heated to 150 ° C and air pressure is applied.

The base paper supply device 5 includes a configuration of a paper feed unit from the unreel 11 that holds the roll-shaped transfer base paper W to a position immediately before the transfer roller 2, a configuration of a transfer unit of the transfer roller 2 portion, and a delivery of the transfer roller 2 at a subsequent stage. It can be divided into two parts. The unreel 11 is a controller that operates according to the signal from the deviation detection device 12.
The transfer base paper W is moved in a direction perpendicular to the traveling direction of the transfer base paper W by 13 to center the transfer base paper W. In addition, the brake is applied by the stop signal and the transfer base paper W is rotated by rotation due to inertia.
Can be prevented from overfeeding. The deviation detection device 12 detects the deviation of the transfer base paper W in the width direction by means of air, a photoelectric tube or the like, and drives the unreel 11 via the controller 13. The rear end of the configuration of the paper feeding unit is the rotation direction of the transfer roller 2 of the gun nozzle 3 provided above the transfer roller 2 (clockwise direction in the drawing).
Is a guide roller 14 provided on the front side. The guide roller 14 is for feeding the transfer base paper W from the tangential direction to the transfer roller 2 corresponding to the transfer section, and has a movable structure together with the pressing roller 15 which is the structure of the transfer section.
The pressing roller 15 is a roller that comes into contact with the outer periphery of the transfer roller 2 and presses the transfer base paper W to the transfer roller 2 first, and the bottom side of the molten resin in the molding groove 1 of the transfer roller 2 is the transfer roller. It is semi-cured by the cooling function of 2, and the surface side is provided at a position where it is still in an uncured state with adhesiveness, that is, at a position slightly separated from the gun nozzle 3 in the rotational direction of the transfer roller 2. At the transfer portion, there is another pressing roller 16 which comes into pressure contact with the lower end of the outer periphery of the transfer roller 2. The transfer roller 2 is placed at an intermediate position between the pressing roller 16 and the gun nozzle 3.
The pressing roller 15 is disposed in contact with the. Tension is applied to the transfer base paper W by the guide roller 14, the pressing roller 16 and the transfer roller 2, so that the transfer base paper W is transferred to the transfer roller 2.
It will be in close contact with almost half of the outer circumference. The presser roller 15 secures an optimum timing of adhesion of the transfer base paper W to the transfer roller 2 depending on the balance between the rotation speed and the hardening speed of the molten resin. Another presser roller 16
Sandwiches the transfer base paper W with the transfer roller 2 and transmits the rotational force of the transfer roller 2 to the transfer base paper W to transfer the transfer base paper W.
Is pulled in the sending direction.

The sending-out section is composed of a separate roller 17 disposed in the upper part behind the pressing roller 16. this is,
The transfer base paper W, which is drawn around the transfer roller 2 due to the rotation of the transfer roller 2, is pressed from the upper side behind the lower end of the outer periphery of the transfer roller 2, and is transferred from the transfer roller 2 of the transfer base paper W on which the resin ribs 8 are transferred. Of the transfer paper W and the transfer base paper W is smoothly fed.

In the figure, reference numeral 18 denotes a defect detection device, which detects the resin remaining in the molding groove 1 of the transfer roller 2 due to poor separation by the separation roller 17 and detects this through the controller 19 and the resin supply device 4 and the transfer base paper. What stops W feeding, 20
Numeral 21 is a slitter, which aligns the width of the transfer base paper W that has been transferred and cuts it to a certain width, and 21 is an auxiliary drive roller.
Smoothing of separation of the transfer base paper W from the transfer roller 2, smoothing of cutting by the slitter 20 and feeding to the next step are performed, and the peripheral speed of the transfer roller 2 is always the same. Further, 22 is a cutting device and 23 is a stacking device.

In the embodiment shown in FIG. 4, the pressing roller 16 and the feeding portion in the base paper supply device 5 are constituted by a belt conveyor 24, and the transfer base paper W on which the transfer of the resin ribs 8 is completed can be held well. Become.

Then, the transfer base paper W held on the unreel 11 is pulled by the rotation of the transfer roller 2 and closely adheres to the transfer portion of the transfer roller 2 without slippage or slack. 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 is no longer in a groove shape by being filled with the molten resin. Then, the surface of the resin with which the transfer base paper W is filled in the molding groove 1 does not harden, and at a point of time when there is adhesiveness, the transfer base paper W is in close contact with the transfer base paper W from the tangential direction, and the resin ribs 8 are continuously formed by transfer onto the transfer base paper W. Done. The molten resin filled in the molding groove 1 is sequentially cooled by the cooling function of the transfer roller 2 and is cured in parallel with the transfer onto the transfer base paper W.
The resin ribs 8 having the same cross-sectional shape are fixed on one side of the transfer base paper W. The transfer base paper W on which the resin ribs 8 have been fixed may already be called a spacing plate. That is, the bottom side of the molten resin in the molding groove 1 of the transfer roller 2 is semi-cured by the cooling function of the transfer roller 2 by the pressing roller 15 that first presses the transfer base paper W against the transfer roller 2, and the front side is When the uncured state is still adhesive, the transfer base paper W
The transfer to the sheet is performed together with the molding. As a result, the molding of the molten resin is performed at an exquisite timing with the adhesiveness thereof, and the molding and fixing of the resin rib 8 on the transfer base paper W is performed at an extremely high speed. After that, the separate roller 17 and the auxiliary drive roller 21 sequentially pull the lower end portion of the transfer roller 2 from the transfer roller 2, cut it, and send it to the rear side.

The advantage of this transfer type spacing plate manufacturing device is that the resin rib 8
The cross-sectional shape of can be freely set, and its height dimension can be defined by the molding groove 1 without depending on the viscosity of the resin, and since light molten resin is filled in the molding groove 1, air flow, vibration, etc. That is, it is possible to continuously obtain a high-precision and high-quality space plate with a small amount of resin material without receiving disturbance requirements.
It is the injection method that can compete with this manufacturing apparatus in terms of processing accuracy and the arbitrariness of the shape of the resin rib 8. However, this has a long processing cycle time, low productivity, and continuous molding is not possible. In addition, there is a lot of loss of materials such as runners and gates, and the die cost and running cost are high.

[Effects of the Invention] As is apparent from the description of the embodiments, the spacing plate manufacturing apparatus of the present invention has a predetermined cross-sectional shape in which the molten resin forming the resin rib is formed in the circumferential direction of the transfer roller. While filling multiple annular molding grooves and constraining their dimensions and shapes,
The transfer base paper 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 matching the size and shape of the above-mentioned annular molding groove is transferred to one side of the transfer base paper by transfer that is not easily disturbed. It can be formed continuously and at high speed by utilizing the adhesiveness of the resin. Therefore, a highly accurate and high-quality spacer plate can be continuously obtained with a small amount of resin material, and the cross-sectional shape and height dimension of the resin rib can be freely set.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing a configuration of a manufacturing apparatus as an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is an explanatory diagram showing a relationship between the transfer roller and a gun / nozzle. FIG. 4 is a system configuration diagram of the main part of another embodiment, and FIG. 5 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, 4 is a resin supply device, 5 is a base paper supply device, 8 is a resin rib, 9 is a hot melt applicator, 14 is a guide roller, 15 and 16 are pressing rollers, 17 is a separate roller, 2
4 is a belt conveyor, and W is a base paper for transfer. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadanori Fujii 1-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Works (56) References

Claims (2)

[Claims] 1. A rotating transfer roller having a plurality of annular molding grooves formed in a circumferential direction and having a predetermined cross-sectional shape on the outer periphery and having a cooling function, and the molding grooves of the transfer roller. The transfer base paper is provided with a resin supply device for supplying molten resin of a hot melt type by a nozzle, and a base paper supply device for supplying the transfer base paper to the outer peripheral surface of the transfer roller supplied with the resin at a predetermined speed. Is applied to the outer peripheral surface of almost half of the transfer roller, and while continuously molding the resin in the molding groove, the roller is continuously pressed against the base paper for transfer to form a double-row resin rib by transfer due to the adhesiveness of the resin. An apparatus for manufacturing a spacing plate characterized by the above. 2. The apparatus for manufacturing a spacing plate according to claim 1, wherein the raw paper supply device includes a belt conveyor type feeding device for feeding the raw paper for transfer on a belt.