JP4804220B2 - Equipment for attaching backing material to metal plates - Google Patents

Description

  The present invention relates to an apparatus for attaching a backing material such as a polyethylene foam sheet to a metal plate such as a steel plate in order to produce a roof material.

The roofing material used for the folded plate roof has a backing material such as a polyethylene foam sheet or a glass wool sheet attached to the back surface of the steel sheet for the purpose of heat insulation, sound absorption, prevention of condensation, and the like. Conventionally, as a technique for attaching a backing material to a steel sheet, as described in Patent Document 1, etc., a technique in which a solvent-type adhesive is applied to a steel sheet with a roll coater and bonded, and Patent Document 2, etc. As described above, a reactive type hot melt adhesive is applied in advance to the steel plate or backing material, and the steel plate is heated to a temperature higher than the temperature at which the hot melt adhesive reactivates, and then the two are pressed and bonded together. There was a technique.
When a solvent-type adhesive is applied to a steel sheet and bonded together, the organic solvent may diffuse into the air and harm the health of workers in the factory. When bonding by hot-melt adhesive reactivation, a device that heats the steel plate to a high temperature or a device that cools the steel plate by blowing cooling air or water after bonding the backing material is required. There is an inconvenience that it becomes complicated and large, and the cost of capital investment and running cost increase.

  Patent Document 3 describes a building exterior structure in which a metal plate and a heat insulating material are bonded to each other with an adhesive adhesive having elasticity made into a fiber shape. Furthermore, use of hot melt type synthetic rubber adhesive as an adhesive adhesive, and heat and soften the adhesive by discharging it with hot air from a nozzle in which a large number of small diameter holes are arranged in a line. Application to the surface of the material is described. The heat insulating material to which the adhesive adhesive is applied is set on a positioning jig, a metal plate is stacked on the heat insulating material, and the metal plate and the heat insulating material are bonded to each other by pressing and holding the plate uniformly from the upper surface.

The thing of the said patent document 3 WHEREIN: The hot-melt-adhesive discharged with the hot air from the nozzle of a small diameter hole is divided | segmented into a short fiber, and adheres irregularly on the surface of a heat insulating material (refer patent document 3 and FIG. 2). ). As a result, there are places where the fibers of the hot melt adhesive overlap and do not adhere at all, and only the places where the hot melt adhesive overlaps and adheres when the metal plate is pressed are attached to the metal plate. In this case, the entire surface cannot be bonded. In addition, the hot melt adhesive discharged from the nozzle and adhered to the heat insulating material is cooled in a few seconds and the adhesive strength is remarkably reduced. As described above, the hot melt adhesive is applied and then the heat insulating material is applied. Is set on the positioning jig or the metal plate is stacked, the hot melt adhesive is cooled and the adhesive strength is lowered. Therefore, the backing material may come off from the metal plate.
Furthermore, when hot melt adhesive is ejected from the nozzle together with hot air, the hot melt adhesive is atomized and scattered in the air, deteriorating the working environment and causing the inconvenience of wasting hot melt adhesive. .

  In addition, as described in Patent Document 1, the roof material may be required to have a portion where the backing material is not attached to the front or rear end of the metal plate. In order to produce such a roofing material, it is necessary to cut the backing material into a predetermined length or to position the backing material at a predetermined position on the metal plate. If the feed roller is stopped for cutting or positioning the backing material while the backing material is being crimped to the metal plate, the coil of the backing material is rotated by inertia and sagging occurs in the backing material. If the backing material sags, wrinkles may occur when it is attached to a metal plate, or errors may occur in the length of the backing material and the attaching position. In order to prevent sagging of the backing material, it is conceivable to brake the coil of the backing material, but this will cause the backing material to stretch, and when the backing material is cut, the backing material will shrink. An error occurs in the pasting position.

Further, in the conventional apparatus, the backing material meanders in the path for supplying the backing material, and it is difficult to attach the backing material straight to the metal plate.
Japanese Patent Laid-Open No. 7-24659 JP-A-8-142261 JP 2001-295420 A

  The present invention has been made in view of the above-described circumstances, and the first object of the present invention is that a facility for heating and cooling a metal plate is unnecessary, and the working environment can be favorably maintained. It is another object of the present invention to provide an apparatus for attaching a backing material to a metal plate capable of strongly bonding the metal plate and the backing material over the entire surface. Furthermore, the second object of the present invention is to prevent sagging and expansion / contraction of the backing material. A third object of the present invention is to prevent the backing material from meandering so that the backing material can be applied straight to the metal plate.

In order to achieve the above object, a backing material sticking device to a metal plate according to the invention of claim 1 includes a metal plate supply unit for continuously supplying a metal plate, and a backing material for continuously supplying the backing material. An adhesive comprising: a supply section; an adhesive application section for applying a hot melt adhesive melted by heat to the backing material; and a crimping section for pressing the backing material coated with the hot melt adhesive on a metal plate. The application unit has a plurality of nozzles arranged in the width direction of the backing material, and continuously discharges the fibers of hot melt adhesive from the nozzles in a spiral pattern , and the nozzles can move up and down When the hot melt adhesive is discharged, the nozzle is lowered to approach the backing material, and when the hot melt adhesive is not discharged, the nozzle is raised to move away from the backing material .

The backing material affixing device to the metal plate according to the second aspect of the invention includes a metal plate supply unit that continuously supplies the metal plate, a backing material supply unit that continuously supplies the backing material, and heat to the backing material. Adhesive application part for applying melted hot-melt adhesive, pressure-bonding part for attaching and bonding the backing material coated with hot-melt adhesive on the metal plate, and the backing material coated with hot-melt adhesive on the metal plate The adhesive application part has a plurality of nozzles arranged side by side in the width direction of the backing material, and the hot melt adhesive fibers are spirally patterned from the nozzles. Roh in is intended to continuously discharge, the nozzle is provided with a vertically movable, close to the backing material nozzle is lowered when discharging a hot melt adhesive, when not discharged hot melt adhesive material Le is equal to or away from the backing material to rise.

  In addition to the configuration of the invention according to claim 2, the backing material affixing device to the metal plate according to the invention of claim 3 includes a rotating disk-shaped cutter and a cutter in the width direction of the backing material. It is characterized by having a cutter moving means for moving, and a backing material sandwiching part for holding the backing material while cutting the backing material.

  According to a fourth aspect of the present invention, there is provided an apparatus for attaching a backing material to a metal plate, in addition to the configuration of the invention according to the third aspect, the backing material cutting portion has a silicone oil application means for applying silicone oil to the cutter. It is characterized by being.

  The backing material affixing device to the metal plate according to the invention described in claim 5 is the receiving roller for receiving the surface of the backing material coated with the hot melt adhesive in addition to the configuration of the invention described in claim 3. And a pressing member that moves up and down by a cylinder, and the receiving roller is characterized in that a large number of non-adhesive granules are adhered to the outer peripheral surface. As the non-adhesive granular material, for example, glass beads coated with fluorine can be used.

The apparatus for pasting a backing material to a metal plate according to a sixth aspect of the invention is the nozzle for discharging the hot melt adhesive from the plurality of nozzles in addition to the configuration of the first to fifth aspects of the invention. Can be selected according to the width of the backing material.

The backing material affixing device to the metal plate according to the invention described in claim 7 has the structure of the invention described in claims 1 to 6 , and the backing material supply section has a surface on which the hot melt adhesive of the backing material is applied. It has the heating air spraying part which sprays heating air toward.

According to the eighth aspect of the present invention, in addition to the configuration of the first to seventh aspects of the invention, the backing material applying device is configured to press the friction material against the end surface of the coil of the backing material on the backing material supply unit. A tension applying mechanism for applying tension to the backing material is provided.

According to the ninth aspect of the present invention, in addition to the configuration of the eighth aspect of the invention, the tension applying mechanism is configured such that the friction material is pressed against the end surface of the coil of the backing material by the force of the spring. The spring force is adjustable. The spring includes all kinds of springs such as a coil spring, a disc spring, and an air spring.

The backing material affixing device to a metal plate according to the invention of claim 10 is characterized in that, in addition to the configuration of the invention of claim 8 or 9 , the friction material is rotated in a direction opposite to the direction in which the coil rotates. To do.

The apparatus for pasting a backing material to a metal plate according to the invention described in claim 11 has the structure of the invention described in claims 1 to 10 , and the backing material supply section is provided with a coil of the backing material when the backing material meanders. It has a meandering correction mechanism that corrects meandering by moving it in a direction orthogonal to the feed direction of the plate.

The apparatus for attaching a backing material to a metal plate according to the invention of claim 1 is a hot melt in which a metal plate and a backing material are continuously supplied from a metal plate supply part and a backing material supply part and melted by heat in an adhesive application part. Since the adhesive is applied to the backing material, and the backing material to which the hot melt adhesive is applied at the crimping part is crimped to the metal plate, a device for heating and cooling the metal plate is unnecessary, simplifying the configuration of the device. Can be downsized. Furthermore, the adhesive application part has a plurality of nozzles arranged in the width direction of the backing material, and the fibers of the hot melt adhesive are continuously discharged in a spiral pattern from each nozzle. The hot melt adhesive fibers are continuously adhered in a spiral pattern in the length direction of the backing material as it moves, and the hot melt adhesive spiral discharged from each nozzle over the entire width of the backing material. Since the fibers are uniformly attached, the hot melt adhesive can be uniformly applied to the entire surface of the backing material, and the backing material and the metal plate are adhered to each other. In addition, by discharging the hot melt adhesive in a spiral pattern, the hot melt adhesive can be prevented from being scattered in the air, and the working environment can be maintained well. Furthermore, the backing material affixing device to the metal plate according to the present invention is provided such that the nozzle of the adhesive application part can be moved up and down, and when discharging hot melt adhesive, the nozzle descends and approaches the backing material. When the melt adhesive is not discharged, the nozzle is moved up and away from the backing material, so even when hot melt adhesive is applied to a heat-sensitive backing material such as a polyethylene foam sheet, the backing material is not heated by the nozzle. Can be prevented from being deformed or torn.

  The backing material affixing device to the metal plate according to the invention of claim 2 has the same effect as that of the invention of claim 1, and the backing material to which the hot melt adhesive is applied by the backing material cut portion. By cutting before the metal plate is crimped, a portion where the backing material is not attached can be provided in a part of the metal plate in the feeding direction.

  The backing material affixing device to the metal plate according to the invention of claim 3, the rotating disc-shaped cutter is moved in the width direction of the backing material by the cutter moving means to cut the backing material, so that the backing material is placed on the cutter. By attaching the backing material at the backing material sandwiching part without sticking, the backing material can be cut straight and clean.

  The apparatus for applying a backing material to a metal plate according to the invention described in claim 4 has a silicon oil application means for applying silicon oil to the cutter, so that the hot melt adhesive is prevented from adhering to the cutter. Good sharpness can be maintained.

  The backing material affixing device to the metal plate according to the invention described in claim 5 includes a large number of non-adhesive granules attached to the outer peripheral surface of the receiving roller in the backing material sandwiching portion. When the backing material is sandwiched, the non-adhesive granular material of the roller receiving the surface of the backing material to which the hot melt adhesive is applied is received at a number of points, so that the backing material can be prevented from sticking to the receiving roller.

Since the backing material sticking device to the metal plate according to the invention described in claim 6 allows the adhesive application section to select the nozzle for discharging the hot melt adhesive from the plurality of nozzles according to the width of the backing material. By not discharging the hot melt adhesive from the nozzle located at the position protruding from the backing material, it is possible to eliminate excessive consumption of the hot melt adhesive and prevent the hot melt adhesive from adhering to the machine.

The backing material affixing device to the metal plate according to the invention described in claim 7 has a heating air spraying section for spraying heated air toward the surface of the backing material to which the hot melt adhesive is applied. Therefore, it is possible to prevent the hot melt adhesive applied to the backing material from cooling down and to strongly bond to the metal plate.

An apparatus for attaching a backing material to a metal plate according to an eighth aspect of the present invention includes a tension applying mechanism that applies tension to the backing material by pressing a friction material against an end surface of a coil of the backing material on the backing material supply unit. Therefore, it is possible to prevent the coil of the backing material from rotating due to inertia when feeding is stopped, and to always apply tension to the backing material and prevent the backing material from sagging.

According to the ninth aspect of the present invention, in the apparatus for attaching a backing material to a metal plate, the tension applying mechanism is such that the friction material is pressed against the end face of the coil of the backing material by the force of the spring, and the force of the spring is adjustable. Thus, the tension strength of the backing material can be adjusted as appropriate so that the elongation and shrinkage generated in the backing material can be reduced.

The apparatus for pasting a backing material to a metal plate according to the invention described in claim 10 rotates the friction material in a direction opposite to the direction in which the coil rotates, so that the coil of the backing material rotates by inertia when feeding stops. As a result, the tension of the backing material can be made as small as possible to reduce the elongation and shrinkage of the backing material, while the sagging of the backing material can be prevented.

According to an eleventh aspect of the present invention, there is provided an apparatus for attaching a backing material to a metal plate, wherein the backing material supply unit is configured to meander by moving a coil of the backing material in a direction perpendicular to the feeding direction of the metal plate when the backing material meanders. Since the meandering correction mechanism is provided to correct the wrinkle, it is possible to prevent the backing material from meandering and to attach the backing material straight to the metal plate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a backing material sticking device (hereinafter simply referred to as a backing material sticking device) to a metal plate according to the present invention. This backing material sticking device is used to produce a roof material. A metal plate supply unit 2 that continuously feeds the metal plate 1 from the coil 24 and continuously supplies the backing material 3 that is pulled out from the coil 19. In the process of supplying the backing material, the adhesive application part 5 for applying hot melt adhesive melted by heat on the back surface of the backing material 3 and the backing material 3 coated with the hot melt adhesive are overlapped on the metal plate 1. A crimping part 6 for crimping and a backing material cutting part 9 for cutting the backing material 3 coated with the hot melt adhesive before the crimping to the metal plate 1 are provided. As the metal plate 1, a steel plate is mainly used. As the backing material 3, a synthetic resin foam sheet such as a polyethylene foam sheet is generally used, and a glass wool sheet is used when fire resistance is required.

  The metal plate supply unit 2 includes two sets of metal plate coil support unit 25 that supports the metal plate coil 24, a strain relief roller 26, and a pair of upper and lower rollers that are driven by a motor 27 and sandwich the metal plate 1. It has feed rollers 28 and 28. The feed rollers 28 and 28 are for feeding the metal plate 1 until the metal plate 1 reaches a feed roller 29 of the press-bonding portion 6 described later, and after the metal plate 1 reaches the feed roller 29 of the press-fit portion 6. Is separated from the metal plate 1.

  The backing material supply unit 4 is provided with a backing material coil support portion 31 that supports the coil 19 of the backing material on the gantry 30. As shown in FIG. 5, the coil 19 of the backing material is obtained by winding a sheet-like backing material 3 around a cylindrical core material 32. The shaft 33 is inserted into the core material 32. It is supported on the bearing plate 34 on both sides of the backing material coil 19. The backing material 3 is pulled out from the coil 19 by being crimped to the metal plate 1 by the feed roller 29 of the crimping portion 6 and fed together, and the coil 19 is rotated counterclockwise as shown in FIG. To do.

In order to prevent the coil 19 from rotating due to inertia and sagging in the backing material 3 when the feed roller 29 of the crimping part 6 stops, as shown in FIG. A friction material 20 made of square material is pressed by the force of a spring 22. The friction material 20 is slidable in the longitudinal direction of the shaft 33 using a key, a spline, or the like, and is attached so as not to idle around the shaft 33. The strength of the spring 22 can be arbitrarily adjusted by adjusting the position of the spring pushing ring 35 fitted to the shaft 33. The shaft 33 is connected to a rotating shaft 37 rotated by a motor 36 by a coupling 38, and the shaft 19 and the friction material 20 are rotated by the coil 19 when the backing material 3 is pulled out as shown in FIG. Rotate in the opposite direction to the direction to do. If the force of the spring 22 is increased too much, sagging of the backing material 3 can be prevented. On the other hand, the backing material 3 tends to stretch, and the backing material 3 becomes larger when the backing material 3 is cut by the backing material cutting portion 9. There is a risk of shrinkage. As described above, by rotating the friction material 20 in the direction opposite to the rotation direction of the coil 19, the effect of stopping the coil 19 from rotating by inertia can be enhanced. Therefore, the tension applied to the backing material 3 can be made as small as possible. The slack of the backing material 3 can be reliably prevented while adjusting the force of the spring 22 so that the stretching or shrinkage of the backing material 3 does not increase. The friction material 20 may be always rotated, but is rotated only while being fed by the feed roller 29, or is rotated only immediately before the feed roller 29 is stopped from immediately before the feed roller 29 is stopped. You can also.
Furthermore, in this apparatus, the optical sensors 39a and 39b are installed at two different positions from the shaft 33 to detect the diameter of the coil 19, and when the diameter of the coil 19 is large, the rotational speed of the friction material 20 is decreased. When the diameter of the coil 19 is reduced, the rotational speed of the friction material 20 is increased. When the diameter of the coil 19 becomes smaller, the coil 19 rotates faster. Accordingly, the rotational speed of the friction material 20 is increased accordingly, so that sagging of the backing material 3 can be reliably prevented regardless of the diameter of the coil 19. .

As shown in FIG. 1, a wheel 40 and an axle 41 are attached to the lower part of the pedestal 30 of the backing material supply unit 4, and the wheel 40 is mounted on a rail 42 installed in a direction perpendicular to the feeding direction of the metal plate 1. ing. By rotating the axle 41 by the motor 43, the gantry 30 moves in a direction orthogonal to the feeding direction A of the metal plate 1. As shown in FIG. 6, two sensors 45 a and 45 b that detect the edge of the backing material 3 are installed on the gantry 44 of the backing material cutting portion 9 in a state in which the position is shifted in the width direction of the backing material 3. . As shown in FIG. 6 (a), the state in which only the inner sensor 45b detects the backing material 3 is a normal state, and as shown in FIG. 6 (b), both the sensors 45a and 45b are in the backing material 3. When the motor 43 is detected, the pedestal 30 of the backing material supply unit 4 is moved to the back side to a position where the outer sensor 45a does not detect the backing material 3. On the other hand, as shown in FIG. 6C, when both sensors 45a and 45b do not detect the backing material 3, the motor 43 is driven until the inner sensor 45a detects the backing material 3. The pedestal 30 of the backing material supply unit 4 is moved to the front side. With this configuration, the meandering of the backing material 3 can be corrected, and the backing material 3 can be attached straight to the metal plate 1.
It is possible to correct the meandering by moving only the backing material coil 19 or only the backing material support 31 in the width direction of the backing material without moving the gantry 30, as in this embodiment, By moving the pedestal 30 and moving the entire backing material supply unit 4, quick and reliable meandering correction can be performed.

As shown in FIG. 1, the backing material 3 pulled out from the coil 19 has a feed direction of the metal plate 1 through the plurality of rollers 76, 76,. The lining material 3 is fed in the opposite direction, and the backing material 3 is fed with the back side up, and the hot melt adhesive is applied by the adhesive application part 5 installed above the backing material 3.
The adhesive application unit 5 uses a modular hot melt adhesive discharge device 46 and universal module UM22 series manufactured by Nordson Corporation. As shown in FIGS. 2 and 3, the hot melt adhesive discharge device 46 is constructed such that a horizontally long plate-like manifold block 47 is installed so as to cross over the backing material 3. In this example, a large number of vertically long block nozzle units 48, 48,. Connected to the manifold block 47 are a hose 49 for supplying hot melt adhesive melted at a high temperature and a hose 50 for supplying pressurized air. A flow path for pressurized air is provided, and the flow path for the hot melt adhesive and the pressurized air is branched to each nozzle unit 48, and the hot melt adhesive and the pressurized air are supplied to each nozzle unit 48. Each nozzle unit 48 incorporates a valve for opening and closing the flow path of the hot melt adhesive, and each nozzle unit 48 is individually supplied with pressurized air for operating the valve. By operation, the hot melt adhesive can be selectively discharged from each nozzle unit. As shown in FIG. 2, the nozzle 7 is detachably attached to the lower portion of each nozzle unit 48 while being held by a clamp member 52. The structure of such a modular hot melt adhesive discharging device 46 is disclosed in detail in JP-A-11-267568.

  The nozzle 7 is a so-called spiral nozzle that can continuously discharge the hot melt adhesive fibers 8 in a spiral pattern. The structure and principle of the spiral nozzle are disclosed in Japanese Patent Application Laid-Open No. 2002-361119, but briefly, the hot melt that communicates with the hot melt adhesive flow path of the nozzle unit 48 at the center of the nozzle 7. An adhesive discharge hole is provided, and a plurality of pressurized air ejection holes communicating with the pressurized air flow path of the nozzle unit 48 are provided around the circle surrounding the adhesive ejection hole, and the pressurized air ejection The flow of pressurized air ejected from the hole becomes a swirl flow that winds around the spiral, and this acts on the fiber of the hot melt adhesive discharged from the adhesive discharge hole, whereby the fiber 8 of the hot melt adhesive is stretched and rotated. A continuous spiral trajectory that rotates while spreading laterally so as to pass on a conical surface 77 indicated by a virtual line in FIG. 2 is drawn. Thus, the backing material 3 moves while continuously discharging the fibers 8 of the hot melt adhesive from the nozzle 7 in a spiral pattern, and as shown in FIG. The hot melt adhesive fibers 8 adhere in a spiral pattern in which the circular arc portion 51 is continuously shifted while gradually shifting in the moving direction of the backing material 3. The size of the arc portion 51 varies depending on the distance between the nozzle 7 and the backing material 3, but the distance is adjusted so that the arc portions of the fibers 8 of the hot melt adhesive discharged from the adjacent nozzles 7 overlap each other. ing. Actually, the distance h between the nozzle 7 and the backing material 3 is about 25 mm. The pitch P of the hot melt adhesive fibers 8 discharged from the adjacent nozzles 7 is 22 mm, which is the same as the width W of the nozzle unit 48.

In this way, the hot melt adhesive is applied to the entire surface of the wide backing material 3 by discharging the hot melt adhesive from the adjacent nozzles 7, 7,... Since it can be applied uniformly without causing unevenness, the entire surface is bonded when the backing material 3 is pressed onto the metal plate 1. In addition, by discharging the hot melt adhesive in a spiral pattern using the spiral nozzle, the hot melt adhesive can be prevented from being scattered in the air, and the working environment can be maintained well. In addition, hot melt adhesive can be uniformly applied to those that are difficult to apply with a roll coater, such as polyethylene foam sheets, and have less adhesion than when applied with a roll coater. Adhesive strength can be increased by the amount of the agent.
As the hot melt adhesive, a synthetic rubber-based hot melt adhesive can be used. The amount of hot melt adhesive applied can be adjusted as appropriate by changing the amount of hot melt adhesive discharged from each nozzle 7 (fiber thickness) and the moving speed of the backing material 3, but in the case of a polyethylene foam sheet Is about 10 g / m ² , and in the case of glass wool, about 40 g / m ² is appropriate.

  As shown in FIGS. 2 and 3, the hot-melt adhesive discharge device 46 has a plate 53 attached to the upper surface, and a guide bar 54 and a cylinder 55 connected to the plate 53 so that the hot melt adhesive discharge device 46 can move up and down as a whole. When the backing material 3 moves, the hot melt adhesive discharging device 46 descends to a position where the distance between the nozzle 7 and the backing material 3 is about 25 mm, and the hot melt adhesive from the nozzles 7, 7,. When the backing material 3 is stopped, the hot melt adhesive discharging device 46 is lifted away from the backing material 3 as indicated by a virtual line in FIG. Since the hot melt adhesive discharging device 46 has a high temperature exceeding 150 ° C., if the backing material 3 remains in the close position until it stops, the backing material 3 that is weak against heat such as a foamed resin sheet is deformed. Although there is a risk of tearing or tearing, such inconvenience can be avoided by raising the hot melt adhesive discharging device 46 and moving away from the backing material 3.

  Moreover, in this apparatus, as shown in FIG. 3, only the nozzles 7, 7,..., 7 within the width of the backing material 3 are selected from the plurality of nozzles 7, 7,. , And the hot melt adhesive is not discharged from the nozzles 7, 7,... 7 located outside the width of the backing material 3. This can be performed by operating a valve in each nozzle unit 48. Thus, by selectively discharging the hot melt adhesive from the plurality of nozzles 7, 7,..., 7 according to the width of the backing material 3, the hot melt adhesive is not wasted, In addition, the hot melt adhesive can be prevented from adhering to the machine.

  As shown in FIG. 1, a heating air blowing unit 18 that blows heated air toward the surface of the backing material 3 coated with the hot melt adhesive is provided inside the pedestal 30 of the backing material supply unit 4. The heated air blowing unit 18 is connected to a hot air generating device for generating hot air by passing the air generated by the blower through a heater and a hose 56, and is opened toward the adhesive-coated surface of the backing material 3 through the hot air blowing ports 57a and 57b. Therefore, heated air heated to about 150 ° C. is blown out. One hot air outlet 57a is provided slightly upward, and the other hot air outlet 57b is provided slightly downward. This prevents the applied hot-melt adhesive from cooling before the backing material 3 is pressure-bonded to the metal plate 1 to reduce the adhesive force.

As shown in FIGS. 7 to 9, the backing material cutting unit 9 includes a disk-shaped cutter 10 that is rotated by a motor 58, a rodless cylinder 11 that moves the cutter 10 in the width direction of the backing material 3, and the backing material 3. A backing material sandwiching portion 12 that holds the backing material 3 while being cut by the cutter 10, a pressing portion 59 that presses the cut piece of the backing material 3 against the metal plate 1, and silicon that applies silicon oil to the cutter 10 An oil application means 13 and a conveyance guide 60 for the metal plate 1 are provided.
The cutter 10 is provided with a large number of saw blades around it and cuts the backing material 3 by moving in the width direction of the backing material 3 with the rodless cylinder 11 while rotating at high speed. The cutter 10 can cut the backing material 3 when moved from right to left in FIG. 8 or when moved from left to right. After the backing material 3 is cut, the cutter 10 is returned to its original position. Cycle time when cutting the backing material is shortened by omitting the time to return.
The silicon oil application means 13 includes a silicon oil tank 61 held at a high position by a stand, spray nozzles 62 and 62 respectively installed toward both sides of the cutter 10, and a hose for supplying silicon oil from the tank 61 to the nozzle 62. 63. After the cutter 10 cuts the backing material 3, silicon oil is sprayed from the nozzle 62 and sprayed onto both sides of the cutter 10 to prevent the hot melt adhesive from adhering to the cutter 10, and the sharpness of the cutter 10 is always good. Can be maintained. As shown in FIG. 8, the silicon oil applying means 13 is provided on both the right side and the left side.
As shown in FIG. 9, the backing material sandwiching portion 12 is provided at a height position between the metal plate 1 and the backing material 3 with both ends supported by bearings 64 in a non-contact state therebetween. And a plate-like pressing member 16 which is disposed above the backing material 3 and moves up and down by a cylinder 15. The receiving roller 14 is affixed to the outer peripheral surface with a tape on which spherical fine glass beads 17 having a diameter of about 20 microns coated with fluorine are firmly attached to the surface. An ICP tape sold by Shinoda Shoji Co., Ltd. can be used as the tape. By doing so, when the backing material 3 is sandwiched between the receiving roller 14 and the pressing member 16, a large number of non-adhesive granules (glass beads 17) are applied with the hot melt adhesive of the backing material 3. Therefore, the backing material 3 can be prevented from sticking to the receiving roller 14. When the glass beads 17 are worn out and the releasability of the receiving roller 14 is lowered, or when it is desired to change the particle size of the glass beads 17 in accordance with the material of the backing material 3, the tape may be replaced.
The pressing portion 59 moves a plate-shaped pressing member 65 up and down with a cylinder 66.

As shown in FIG. 1, a total of four sets of rollers are arranged side by side on the crimping portion 6, and the two sets of rollers 29, 29 on the front side in the metal plate feeding direction are the metal plate 1 and the backing material. 3, the lower roller 29b is driven by the motor 67, and the upper roller 29a also rotates by meshing with a gear (not shown) provided at the ends of the upper and lower roller shafts. The upper roller 29a is pressed downward by the force of the spring 68, and the force of the spring can be adjusted by turning the handle 69 and sliding the spring pushing block 70 up and down.
In the third roller 71, the upper roller 71a is pressed downward by the spring force in the same manner as the feed roller 29a, and the upper and lower rollers 71a, 71b are accompanied by the metal plate 1 and the backing material 3 when they are fed. Turn around. An encoder 72 is attached to the shaft of the lower roller 71b, and the feed length of the metal plate 3 is calculated based on the signal of the encoder 72 to control the movement of the motors and cylinders of each part. Since the roller shaft to which the encoder 72 is attached is not driven by a motor, the roller shaft does not rotate freely, and the feed length of the metal plate 3 can be accurately measured.
As shown in FIG. 11C, the fourth roller 73 is a slitter roller for slitting the metal plate 1 and the backing material 3 at the same time with a slitter blade provided on the outer periphery of the roller and cutting it with a predetermined width. . When there is no need to make a cut, the same smooth roller as the feed roller 29 is attached and functions as a feed roller.
Next to the fourth roller 73, a shearing portion 74 is provided.

According to this backing material pasting apparatus, as shown in FIG. 11 (a), in addition to being able to produce a material with the backing material 3 pasted over the entire length of the metal plate 1 having an arbitrary length L, FIG. As shown to b), it is also possible to make the part to which the backing material 3 is not affixed only by arbitrary length a and b in the front-and-back ends of the metal plate 1 of arbitrary length (a or b) Any of these can be set to 0).
When producing the thing of Fig.11 (a), what is necessary is just to start and cut the shearing part 74, every time it sends with the feed roller 29 only the length L based on the signal of the encoder 72. FIG.
When producing the thing of FIG.11 (b), in addition to operation | movement of said shearing part 74, the backing material cut part 9 is operated as follows. First, as shown in FIG. 10 (a), when the planned cutting position 75 by the shearing portion 74 reaches from the cutter 10 by a dimension a, the feed roller 29 is stopped, the cylinder 15 is started, and the presser member 16 is started. And the backing material 3 is sandwiched between the pressing member 16 and the receiving roller 14. The timing of stopping the feed roller 29 at this time can be calculated from the respective distances from the roller 71 to which the encoder 72 is attached to the shearing portion 74 and the cutter 10 and the cutting length L of the metal plate 1. Next, as shown in FIG. 10B, the cutter 10 is rotated by the motor 58 and is moved in the width direction of the backing material 3 by the rodless cylinder 11 to cut the backing material 3. Next, as shown in FIG. 10C, after feeding the metal plate 3 by the feed roller 29 by the dimension a + b, the feed roller 29 is stopped, the cylinder 66 is started, and the pressing member 65 is used to remove the piece of the backing material 3 from the metal. Press against plate 1. Next, as shown in FIG. 10 (d), after the cylinders 15 and 66 are activated to raise the presser member 16 and the pressing member 65 and then the metal plate 1 is fed by the feed roller 29, the backing material 3 is pressed. The portion pressed by the member 65 is pulled out together with the metal plate 1 to adhere to the metal plate 1, the receiving roller 14 rotates slightly, and the backing material 3 is separated from the receiving roller 14.
In the backing material pasting apparatus, the tension applying mechanism 21 using the friction material 20 provided in the backing material supply unit 4 causes the coil 19 of the backing material to rotate due to inertia when the feed roller 29 is stopped, and sagging occurs. Therefore, the backing material 3 can be affixed cleanly without becoming wrinkled, and since the expansion and contraction of the backing material 3 can be suppressed, the length of the backing material 3 and the position to be affixed are accurate. Further, the backing material supply unit 4 has a meandering correction mechanism for correcting the meandering of the backing material 3 by moving the coil 19 of the backing material in a direction perpendicular to the feeding direction of the metal plate 1. 3 can be applied straight to the metal plate 1.

  The present invention is not limited to the embodiments described above. The backing material cut portion can be omitted. An aluminum plate can also be used as the metal plate.

It is a front view of the backing material sticking apparatus to the metal plate of this invention. It is a front view which expands and shows an adhesive agent application part. FIG. 3 is a view taken in the direction of arrow X in FIG. 2. It is a top view which shows the application | coating state of the hot-melt-adhesive agent to a backing material. FIG. 2 is a view taken in the direction of arrow X in FIG. 1. It is a schematic plan view which shows operation | movement of a meandering correction mechanism. It is a front view which expands and shows a backing material cut part. FIG. 8 is a view taken in the direction of arrow X in FIG. 7. It is a Y arrow line view of FIG. It is a schematic front view which shows operation | movement of a backing material cut part in order. It is a perspective view which shows the example of the product which can be produced with the apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal plate 2 Metal plate supply part 3 Backing material 4 Backing material supply part 5 Adhesive application part 6 Crimp part 7 Nozzle 8 Hot melt adhesive fiber 9 Backing material cut part 10 Cutter 11 Rodless cylinder (cutter moving means)
12 Backing material sandwiching part 13 Silicon oil application means 14 Receiving roller 15 Cylinder 16 Holding member 17 Glass beads (granular body)
18 Heated air spraying part 19 Coil of backing material 20 Friction material 21 Tension applying mechanism 22 Spring 23 Meander correction mechanism

Claims (11)

Metal plate supply unit (2) for continuously supplying the metal plate (1), backing material supply unit (4) for continuously supplying the backing material (3), and hot-melt bonding in which the backing material is melted by heat An adhesive application part (5) for applying the adhesive, and a crimping part (6) for pressing the backing material coated with the hot melt adhesive on the metal plate, and the adhesive application part has a width of the backing material. It has a plurality of nozzles (7) arranged side by side and continuously discharges hot melt adhesive fibers (8) in a spiral pattern from the nozzles, and the nozzle (7) can move up and down. When the hot melt adhesive is discharged, the nozzle is lowered to approach the backing material (3), and when the hot melt adhesive is not discharged, the nozzle is raised to move away from the backing material. Equipment for attaching backing material to metal plates. Metal plate supply unit (2) for continuously supplying the metal plate (1), backing material supply unit (4) for continuously supplying the backing material (3), and hot-melt bonding in which the backing material is melted by heat The adhesive application part (5) for applying the adhesive, the crimping part (6) for pressing the backing material coated with the hot melt adhesive on the metal plate, and the backing material coated with the hot melt adhesive are made of metal. A backing material cut portion (9) cut before pressing onto the plate, and the adhesive application portion has a plurality of nozzles (7) arranged in the width direction of the backing material, from the nozzle to the hot melt adhesive The fiber (8) is continuously discharged in a spiral pattern , the nozzle (7) is provided so as to be movable up and down, and the nozzle is lowered when the hot melt adhesive is discharged, and the backing material Approach (3) and do not discharge hot melt adhesive. Backing joining apparatus for metal sheets, characterized in that away from the backing material nozzle rises when.   The backing material cutting part (9) includes a rotating disk-shaped cutter (10), a cutter moving means (11) for moving the cutter in the width direction of the backing material, and sandwiching the backing material when cutting the backing material. The apparatus for attaching a backing material to a metal plate according to claim 2, further comprising a backing material sandwiching portion (12) for holding the backing material.   4. A backing material affixing device to a metal plate according to claim 3, wherein the backing material cut portion (9) has silicon oil application means (13) for applying silicone oil to the cutter (10). .   The backing material sandwiching portion (12) is composed of a receiving roller (14) that receives the surface of the backing material (3) coated with the hot-melt adhesive, and a pressing member (16) that moves up and down by the cylinder (15). The backing material affixing device to the metal plate according to claim 3 or 4, wherein the receiving roller has a large number of non-adhesive granules (17) attached to the outer peripheral surface thereof. The adhesive application section (5) is characterized in that a nozzle for discharging a hot melt adhesive can be selected from a plurality of nozzles (7) according to the width of the backing material (3). The backing material sticking apparatus to the metal plate of 2, 3, 4 or 5 . The backing material supply section (4) has a heated air spray section (18) for spraying heated air toward the surface of the backing material (3) coated with the hot melt adhesive. Item 1. A device for attaching a backing material to a metal plate according to 1, 2, 3, 4, 5, or 6 . The backing material supply section (4) has a tension applying mechanism (21) for applying tension to the backing material (3) by pressing the friction material (20) against the end surface of the coil (19) of the backing material. The backing material affixing device to a metal plate according to claim 1, 2, 3, 4, 5, 6 or 7 . The tension applying mechanism (21) is characterized in that the friction material (20) is pressed against the end face of the coil (19) of the backing material by the force of the spring (22), and the force of the spring is adjustable. Item 9. A backing material affixing device to a metal plate according to item 8 . The apparatus for attaching a backing material to a metal plate according to claim 8 or 9, wherein the friction material (20) is rotated in a direction opposite to a direction in which the coil (19) rotates. The backing material supply unit (4) has a meandering correction in which the coil (19) of the backing material is moved in a direction perpendicular to the feeding direction of the metal plate (1) when the backing material (3) meanders. The apparatus for pasting a backing material on a metal plate according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, further comprising a mechanism (23).

Images