JPH0550982B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a spacing plate having a spacing structure that is a component of corrugated paper, a laminated battery, a packaging material, a laminated heat exchange element, etc. The present invention relates to an apparatus for manufacturing a spacing plate whose spacing structure is made of resin and has an adhesive layer necessary for lamination.

[Prior Art] The spacing plate having the above-mentioned structure is also called a separator or the like and has been a component of various laminated structure articles. Although the material may differ depending on the article to which it is applied, its structure is that ribs or ridges 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 hold 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. 54-72437. In other words, they have been manufactured by heat-sealing a resin monofilament that forms the ribs onto a flat plate material, or by linearly applying a highly viscous adhesive resin to a flat plate material and curing it. . Since the latter is easier to handle in continuous production than the former, production using an apparatus as shown in FIG. 6 has been put into practical use. That is, a highly viscous adhesive resin is force-fed to a plurality of gun nozzles 30 arranged in a straight line, and the flat plate material 31 is moved in a direction perpendicular to the direction in which the gun nozzles 30 are arranged to cause the resin to flow down onto the flat plate material 31. , to harden it. Thereby, the same number of ribs 32 as the number of gun nozzles 30 can be continuously formed on the upper surface of the flat plate material 31 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.
Small fluctuations in the amount of resin discharged from zero will change the cross-sectional shape of the ribs 32, making it difficult not only to obtain ribs 32 with constant dimensions and shape, but also to make the ribs 32
The shape of the rib 32 depends on the surface tension of the resin, so it becomes a semi-cylindrical shape, and the required height of the rib 32 cannot be increased without increasing the viscosity of the resin, so the problem is that it is difficult to obtain even if the amount of resin is increased. There is. Furthermore, if the resin being discharged is subjected to the vibrations of the device or the effects of air flow, the ribs 32 may meander.
2, the pitch accuracy cannot be maintained, and the problem is that a troublesome process of applying adhesive to the top ends of the ribs 32 is required during lamination.

This invention was made to solve these conventional problems, and the size and shape of the resin ribs are stable, and there is a high degree of freedom in setting the shape.
Resin ribs are formed on both sides of the transfer base paper, and an adhesive layer necessary for lamination is also formed on the top end of each resin rib.A spacing plate that can continuously form high-quality spacing plates. The purpose is to obtain manufacturing equipment.

[Means for Solving the Problems] A spacer plate manufacturing apparatus according to the present invention includes two transfer rollers each having a plurality of annular forming 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 molding grooves of each of the two transfer rollers through a nozzle, and transfer base paper at a predetermined speed to the outer peripheral surface of each of the transfer rollers to which the resin has been supplied. The device is equipped with a base paper feeding device that sequentially feeds the base paper, and an adhesive layer forming device that is placed after each transfer roller and applies a low melting point adhesive onto the top edge of each resin rib that is transferred by the transfer roller. .

[Function] In the present invention, a plurality of annular molding grooves each formed in the circumferential direction of two transfer rollers and having a predetermined cross-sectional shape are filled with molten resin that will become the resin ribs, and the dimensions and shape of the grooves are constrained. Transfer base paper is fed to the outer peripheral surface of the transfer roller by a base paper supply device at a predetermined speed, and double rows of resin ribs that match the size and shape of the annular molding groove are formed on both sides of the transfer base paper by transfer that is less susceptible to disturbance. The resin ribs can be formed continuously and simultaneously, and the low melting point adhesive layer required when laminating the spacer plates can also be continuously formed on the top end of each resin rib.

[Example] Figures 1 to 3 all show a spacing plate manufacturing apparatus as an example of the present invention. The apparatus of the embodiment shown in the figure forms resin ribs by heat-sealing or by discharging and flowing resin, whereas the latter can be called a flow-down method. , the resin ribs are transferred to the base paper for transfer (this does not necessarily indicate paper,
This is a generic name for paper-like flat plates with low rigidity), and in this sense, it can be called a transfer method spacing plate manufacturing device. A two-stage transfer roller 2 is provided on the outer periphery with a plurality of annular molding grooves 1 having a predetermined cross-sectional shape, and a hot melt type molten resin is applied to the annular molding groove 1 of each transfer roller 2 with a gun. - Formed by a resin supply device 4 that supplies resin through a nozzle 3, a base paper supply device 5 that conveys the transfer base paper W at a predetermined speed to the outer peripheral surface of each of the transfer rollers 2 supplied with resin, and the transfer roller 2. The adhesive layer forming device 8 applies a low melting point adhesive onto each top end of the double rows of resin ribs 6 to form an adhesive layer 7.

In the apparatus shown in FIG.
are horizontally supported and rotated at low speed in opposite directions by motors 10 via speed reducers 9, respectively. Each transfer roller 2 has
On its outer periphery, annular molding grooves 1 continuous in the circumferential direction are bored in double rows at predetermined intervals in the centerline direction. Each annular molding groove 1 has a 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. The shape of the forming groove 1 does not need to be a semi-cylindrical shape unlike the conventional flow-down method, and as long as the bottom side of the groove does not expand, the shape that best suits the purpose of the spacing plate can be freely selected. . The surface of the annular molding groove 1 is coated or applied with a resin such as tetrafluoroethylene or a release agent in order to improve the releasability from the resin. Further, each transfer roller 2 is provided with a cooling function to harden the molten resin in a short time.

The resin supply device 4 includes a hot melt applicator 11, a hose 12, and a gun nozzle 3. The hot melt applicator 11 has a resin melting furnace with a built-in gear pump, and pressure-feeds molten resin to the gun nozzle 3 via a hose 12. The gear pump pumps out the molten resin in proportion to the rotational speed of each transfer roller 2 using an SCR (rotation control device). Hot melt applicator 11
The gun nozzle 3 connected to the transfer roller 2 by a hose 12 is connected to the transfer roller 2 so that each ejection port corresponds one-to-one to each annular forming groove 1 on the rotation axis of the transfer roller 2 above each transfer roller 2. It is fixed to a frame or the like, and the molten resin that is pumped into the annular molding groove 1 corresponding to each spout is discharged from a nearby position. The resins to be fed into the hot melt applicator 11 include hot melt type EVA (ethylene, vinyl, acetate) with strong adhesive properties, APP (recycled residue from polypropylene production), and TDR (thermoplastic rubber). ,
PA (polyamide resin), polyester resin, etc.
Hot melt applicator 11 is 120~
The molten resin is heated to 200° C. and fed under pressure, and a single hot melt applicator 11 can supply the molten resin to each transfer roller 2.

The base paper supply device 5 supplies a rolled base paper W for transfer.
The configuration of the paper feeding section from the unreel 13 that holds the paper to just before the first transfer roller 2, the configuration of the transfer section of the transfer roller 2 section, and the configuration of the delivery section after the second transfer roller 2 are greatly affected. We can separate. The unreel 13 is moved in a direction perpendicular to the traveling direction of the transfer base paper W by a controller 15 operated by a signal from the shift detection device 14 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 shift detection device 14 detects a shift in the width direction of the transfer base paper W using air, a phototube, a sensor, etc., and drives the unreel 13 via the controller 15. The rear end of the paper feeding section is a guide roller 16 provided in front of the transfer roller 2 at the previous stage. This guide roller 16 is within the radius of the transfer roller 2, and the presser roller 1 which is a structure of the transfer section
7 and has a movable structure. This configuration is also provided in front of the second stage transfer roller 2. Each transfer section has another presser roller 18 that presses against the lower edge of the outer periphery of the transfer roller 2. Then, tension is applied to the transfer base paper W by the guide roller 16, presser roller 18, and transfer roller 2,
The transfer base paper W comes into close contact with approximately half of the outer periphery of each transfer roller 2 at the front and rear stages. The presser roller 17 controls the transfer base paper W depending on the balance between the rotation speed and the curing speed of the molten resin.
to ensure optimal timing of close contact with the transfer roller 2. Another presser roller 18 holds the transfer base paper W between itself and the transfer roller 2, transmits the rotational force of each transfer roller 2 to the transfer base paper W, and pulls and tensions the transfer base paper W in the sending direction. It is something.

The sending section is composed of a separate roller 19 disposed behind the presser roller 18 of the transfer roller 2 at the subsequent stage. This facilitates the separation of the transfer base paper W onto which the resin ribs 6 have been transferred from the transfer roller 2, and makes the transfer of the transfer base paper W smooth.

The adhesive layer forming devices 8 are respectively disposed after the first transfer roller 2 and after the second transfer roller 2, and each adhesive layer forming device 8 is provided with a low melting point film on the top end of the resin rib 6 transferred to the transfer base paper W. The roller coater 20 continuously applies the adhesive, and the air cylinder 22 presses the transfer base paper W so that the resin ribs 6 uniformly contact the rotating application roller 21. The roll coater 20 heat-melts a low-melting-point adhesive and supplies the rotating application roller 21 with the adhesive of a required thickness. A pressure roller 23 is attached to the rod of the air cylinder 22 so as to straddle the application roller 21, so that the resin rib 6 transferred to the transfer base paper W comes into sufficient contact with the rotating application roller 21. The rotation direction of the application roller 21 is opposite to the direction of movement of the transfer base paper W in order to ensure good adhesive application.

In the figure, reference numeral 24 denotes a defect detection device, which detects when resin remains in the molding groove 1 of the transfer roller 2 due to poor peeling by the separate roller 19 and sends the resin to the resin supply device 4 and the transfer base paper via the controller 25. 26 is a slitter that aligns the width of the transferred base paper W and cuts it to a certain width; 27 is an auxiliary drive roller that stops the transfer base paper W from the transfer roller 2; It facilitates peeling, smooth cutting by the slitter 26, and feeding to the next process, and the peripheral speed with the transfer roller 2 is always the same. Furthermore, 28 is a cutting device, 2
9 is a stacking adhesive device.

Thus, the transfer base paper W held on the unreel 13 is pulled by the rotation of the first and second transfer rollers 2, and the first transfer roller 2 transfers the paper without any deviation or slack. It sticks tightly to the part as if wrapping around it. Each molding groove 1 of the first-stage transfer roller 2 is continuously filled with a fixed amount of molten resin from the resin supply device 4, and the molding groove 1 of the transfer roller 2 is filled with the molten resin so that the molding groove 1 is no longer in the form of a groove. The transfer base paper W is continuously brought into close contact with the outer periphery of the transfer base paper W, and the resin ribs 6 are continuously formed on one side by transfer to the transfer base paper W. The molten resin filled in the molding groove 1 is transferred to the transfer roller 2 and the presser roller 17.
It is sequentially cooled by the cooling function provided to the transfer base paper W and 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 forming groove 1, and the transfer base paper W
It is fixed on one side of the paper. Subsequently, the transfer base paper W on which the resin ribs 6 have been transferred to one side is sent to the second-stage transfer roller 2 in the same way as the previous-stage transfer roller 2, and the other side is sent to the second-stage transfer roller 2 in the same way as the previous-stage transfer roller 2. Resin ribs 6 are also continuously formed on the surface by transfer. The transfer base paper W with the resin ribs 6 fixed on both sides can already be called a spacing plate.
The sheets are sequentially peeled off from the transfer roller 2 by the separate roller 19, cut and sent rearward.
During this period, the roll coater 2 of the adhesive layer forming device 8
0, and an adhesive layer 7 of a constant thickness is formed on the top end of each resin rib 6, as shown in FIG. If heat is applied to the adhesive layer 7 of the spacer plates, which are cut and stacked with a partition plate of the same quality as the transfer base paper W in between, to develop adhesive strength, a heat exchanger or a package obtained by stacking the spacer plates can be produced. Goods such as materials can be produced rationally (see Figure 5).

The features of this transfer method spacing plate manufacturing device are that the cross-sectional shape of the resin rib 6 can be freely set, the height dimension can also be defined by the molding groove 1 without depending on the viscosity of the resin, The resin ribs 6 can be formed continuously at the same time, and the equipment can be simplified by sharing common parts.Since the molding groove 1 is filled with molten resin, it is not subject to disturbance requirements such as air flow or vibration, and the accuracy is improved. It is possible to continuously obtain high-quality spacing plates with a small amount of resin material, and the fourth
As shown in the figure, by combining the forming grooves 1 with the transfer roller 2, it is possible to relatively easily manufacture a spacer plate in which the resin ribs 6 are arranged in a staggered manner on the front and back, or a spacer plate in a corresponding arrangement, and an adhesive layer is required during lamination. 7 is that it can be continuously molded onto the top end of the resin rib 6 to 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 two grooves in which a plurality of annular molding grooves formed in the circumferential direction and having a predetermined cross-sectional shape are provided on the outer periphery. a resin supply device that supplies hot-melt type molten resin to the molding grooves of each of the two transfer rollers through a nozzle; A base paper supply device that sequentially feeds base paper at a predetermined speed, and an adhesive layer forming device that is placed after each transfer roller and applies a low melting point adhesive onto each top of the resin ribs that are transferred by the transfer rollers. Therefore, the molten resin that will become the resin ribs is filled into a plurality of annular molding grooves each formed in the circumferential direction of the two transfer rollers and having a predetermined cross-sectional shape, and while constraining the dimensions and shape. A base paper supply device feeds the base paper for transfer onto the outer peripheral surface of the transfer roller at a predetermined speed.
Double rows of resin ribs that match the size and shape of the annular molding groove can be continuously and simultaneously formed on both sides of the transfer base paper by transfer that is less susceptible to disturbance, and it is possible to continuously and simultaneously form the resin ribs that are necessary when laminating the spacing plates. A low melting point adhesive can also be continuously formed on the top of each resin rib. In other words, the dimensions and shape of the resin ribs are stable, and there is a high degree of freedom in setting the shape.The resin ribs are formed on both sides of the transfer base paper, and the adhesive required for lamination is provided on the top of each resin rib. This is a spacing plate manufacturing device that can continuously form high-quality spacing plates in which layers are also formed.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram showing the configuration of a manufacturing apparatus as an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a transfer roller and gun.
FIG. 4 is an explanatory diagram showing the relationship between nozzles, FIG. 4 is an explanatory diagram showing spacing plates with different shapes of resin ribs, FIG. 5 is an explanatory diagram showing a laminated form, and FIG. 6 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, 6 is a resin rib, 7 is an adhesive layer, 8 is an adhesive layer forming device, 11 is a A hot melt applicator, 16 a guide roller, 20 a roll coater, and W a transfer base paper. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. Two transfer rollers each having a plurality of annular molding grooves formed in the circumferential direction and having a predetermined cross-sectional shape on the outer periphery, and a hot melt type molding groove in each of the two transfer rollers. A resin supply device that supplies molten resin through a nozzle, a base paper supply device that sequentially supplies transfer base paper at a predetermined speed to the outer peripheral surface of each of the transfer rollers to which resin has been supplied, and a base paper supply device that supplies the resin to the outer peripheral surface of each of the transfer rollers at a predetermined speed, 1. An adhesive layer forming device for applying a low melting point adhesive onto each top end of resin ribs arranged and transferred by a transfer roller. 2. The spacer plate manufacturing apparatus according to claim 1, wherein each transfer roller rotates at a predetermined speed in opposite directions. 3. The spacing plate according to claim 1 or 2, wherein the transfer base paper sent from the base paper supply device is fed to each transfer roller in a pressed state by a presser roller that contacts the transfer roller. Manufacturing equipment.