JP2631283B2 - Continuous manufacturing method of siding material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously producing a siding material used as an exterior material of a building or the like.

[0002]

2. Description of the Related Art One of exterior materials for buildings and the like is a siding material. After forming a thin metal plate into a substantially trough-like shape, a foaming synthetic resin such as polyurethane is injected into this portion to be cured and integrated. It is used for heat insulation and sound insulation, as well as for ease of handling and construction by reducing weight.

[0003] When such a siding material is manufactured, for example, a thin metal sheet unwound from an uncoiler is used as a base material, which is sent to an embossing machine to form an uneven pattern, and then both edges in the width direction are formed by a forming machine. Was formed into a substantially trough-like shape, and a foaming material was injected into the trough-like base material by a foaming material injecting machine, and the foaming pressure was sent to a foaming / curing transporting machine so as to be cured while regulating the foaming pressure.

[0004]

When such a siding material is manufactured, a coil of about 1000 to 2000 m is mounted on an uncoiler to form the siding material, and when the coil runs out, the manufacturing apparatus is temporarily stopped. After that, a new coil is connected or a new coil is passed through each device to resume the molding.

[0005] This is because the time required for connecting the coil is 20 times.
Even if seconds are enough, the line speed of the molding line is usually operated at a high speed of usually 10 to 50 m / min,
This is because the connection often fails.

Therefore, the base material and the like in the middle of the molding on the molding line must be cut and removed, which is wasteful.

Therefore, it was conceived to connect the old and new coils in the operating state. However, if the line speed was reduced to secure the time for the connection, the foam injected during that time was applied to the foam. There is a problem that the backing material such as paper to be cured is hardened before being supplied, loses self-adhesiveness and cannot be bonded.

The present invention has been made in view of the problems of the prior art, and continuously manufactures a siding material by setting a foaming material to be injected into a substrate to an optimum foaming state even when a line speed of a continuous manufacturing line changes. It is an object of the present invention to provide a method for continuously producing a siding material that can be used.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a method for continuously producing a siding material according to the present invention comprises the steps of: injecting a foam material into a substantially trough-shaped base material; In the continuous production of the material, the injection position of the foam material is moved in the line direction according to the line speed of the continuous production line of the siding material.

According to this method for continuously producing siding material, the injection position of the foamed material is moved in the line direction in accordance with the line speed of the continuous production line. While injecting on the side
When the line speed is high, the injection is performed on the upstream side in the line direction so that the back material can always be hit in an optimal state.

As a result, even if the line speed changes, it is possible to prevent the occurrence of a defective portion that cannot be produced in a product.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIGS. 1 and 2 are schematic front views of a first half and a second half of an example of a manufacturing apparatus to which an embodiment of the continuous siding material manufacturing method of the present invention is applied, and FIGS. 3 and 4 show the present invention. 1 is a schematic plan view of a first half and a second half of an example of a manufacturing apparatus to which an embodiment of a method for continuously manufacturing a siding material according to the present invention is applied.

A manufacturing apparatus to which the continuous siding material manufacturing method is applied is provided with two uncoilers 11 and 12 at the base end of the manufacturing line.
Metal coils 15 and 16 carried and mounted on the coil cars 13 and 14 by turns are fed to the coils 1 and 12 alternately, and supplied as the base material 17 of the siding material in the next and subsequent steps.

The uncoilers 11 and 12 are arranged before and after the forming line. A support roller 18 is provided on the uncoiler 12 on the downstream side of the forming line, and the base material 17 is fed from the uncoiler 11 without interfering with the uncoiler 12. In addition, both the uncoilers 11 and 12 support the coils 15 and 16 in a cantilever manner, so that the transfer from the coil cars 13 and 14 can be easily performed.

Subsequent to the uncoilers 11 and 12, the base material 17 is fed and pressed, and the new and old coils 1
A pinch roll / joint device 19 for connecting the coils 5 and 16 is provided. When connecting the coils, a preceding coil, for example, the rear end of the coil 16 is pressed by a pinch roll 20 to be in a fixed state. For example, coil 15
Are butted on the table 21 and connected with an adhesive tape.

When the coils 15 and 16 are connected, an accumulator 22 is provided in front of the pinch roll joint device 19 in the line direction in order to supply the coils without any trouble.

The accumulator 22 includes a fixed roll 2
3 and a plurality of movable rolls 24. Each movable roll 24 moves up and down integrally or individually. Normally, when the base material 17 passes linearly between the lower side of the fixed roll 23 and the upper side of the movable roll 24 at the lowest position, while the remaining amount of the preceding coil 16 decreases. The movable roll 24 is raised to accumulate the coil in a meandering state, and the coil 16 accumulated in the accumulator 22 is maintained for a time required for connection of the coil.
, The movable roll 24 is gradually lowered.

In front of the accumulator 22 in the line direction, a pinch roll 25 for sending out the base material 17 and a down-cut shear 26 are arranged. Is operated to cut the substrate 17, and a new molding operation is stopped.

In front of the down-cut shear 26,
A heater 27 is provided so that the coating film applied to the base material 17 is heated so as not to be broken at the time of embossing in the next step. The heater 27 employs, for example, a hot air system in which the base material 17 is heated by sending hot air heated by steam. Make improvements. The positions of the heater 27 and the down-cut shear 26 may be reversed. The substrate 17 thus heated and heated
Is sent to the embossing machine 28.

This embossing machine 28 is for embossing a concavo-convex pattern between rolls 29 arranged vertically, and the gap between the rolls 29 is set based on the thickness of the substrate 17.

The substrate 17 provided with the concavo-convex pattern by the embossing machine 28 is not flat due to the residual strain caused by the embossing.

Therefore, the base material 17 is sent to the leveler 30 to be flattened and then sent to the next step.

The leveler 30 is composed of, for example, a roller leveler, in which upper and lower rollers are alternately arranged so as to protrude up and down from a molding line, and corrects the substrate 17 while pulling it.

Thereafter, the corrected base material 17 is placed on the molding machine 3
1 and is formed corresponding to the cross-sectional shape of the siding material. The molding machine 31 is formed by combining, for example, 20 to 25 continuous molding rolls, and it is necessary to replace the molding roll each time the sectional shape of the siding material to be molded is different. Then, a roll stand 33 that moves in a direction perpendicular to the forming line is placed on the slide base 32, and a forming roll for forming a siding material having the same thickness in the cross-sectional direction for flat bonding and a roll for forming an armor on the roll stand 33. Two types of forming rolls 34 and 35 such as forming rolls for forming a siding material having different thicknesses in the cross-sectional direction and having inclined surfaces can be set in advance.

Therefore, the molding of siding materials having different shapes can be realized in a short period of time, and if two sets of molding rolls having the same shape are prepared, maintenance and inspection of unused molding rolls can be performed. Is ready for use, and continuous operation can be performed smoothly.

The substrate 17 thus formed into a predetermined shape
Is supplied to the preheater 36. This preheater 36
Before heating the foamable synthetic resin as a foaming material on the base material 17 is heated to about 30 to 40 ° C. in advance,
The temperature is raised to a temperature suitable for foaming the polyurethane foam. As a heat source in this case, for example, steam is used, and hot air is produced by a steam heater 37 and circulated by a blower 38.

In front of the preheater 36, there is provided a foam injection machine 39 mounted on a portal frame to which the continuous siding material manufacturing method of the present invention is applied, and moves the moving frame 40 back and forth in the line direction. The moving frame 40 is provided with a rotary stirring type mixer 4.
1 is mounted so as to be swingable in a direction perpendicular to the line by a crank mechanism or the like.
2 are installed.

The mixer 41 is supplied with, for example, an isocyanate-based component and a polyol-based component.

Therefore, even if foaming starts due to stirring and mixing of the foamable synthetic resin, the foamable synthetic resin can be injected into the base material 17 without being deposited in the nozzle 42. In addition, if the entire mixer 41 and the nozzle 42 swing in the direction perpendicular to the line, the foam material is injected in a two-line meandering state.
7 can be uniformly injected in the width direction.

The foamable synthetic resin needs to be sent to the foaming hardening and conveying machine 43 in the next step after the elapse of the time from the start of foaming to the completion of the rise time, and the injection position of the foaming material into the base material 17 depends on the line speed. When changing, the moving frame 40 is run to respond.

That is, when the line speed of the continuous production line is low, the injection is performed at a position close to the foam hardening and conveying machine 43 in the next step on the downstream side in the line direction. The injection is performed at a position distant from the foaming and curing transfer device 43 on the upstream side in the direction.

By rubbing, the back material applied on the foam material can always be adhered in an optimal state by utilizing the self-adhesiveness of the foam material, and the foam material is always attached to the foam hardening and transporting machine 43 in the same foam state. Can be sent.

In front of the foam injection machine 39, the base material 1
Back material 4 such as paper which is applied on the foam material so as to face 7
Two backing material supply machines 45 and 46 are provided at the upper part of the molding line to supply the sheet 4, and the sheets can be continuously supplied by supplying the coiled paper alternately.

The backing material 44 such as paper does not interfere with the subsequent steps even if it overlaps at the time of connection. Therefore, the connection is performed such that the backing material 44 is fixed with an adhesive tape without being butt-connected.

The back material 44 is sent to a back material heater 47 and is heated by hot air by a steam heating type hot air heater, which causes the paper to absorb moisture and curl. To prevent

As the back material 44, not only paper such as kraft paper but also aluminum foil or plastic sheet is used. The temperature to be heated varies depending on the type of the back material heater 47, but since the back material heater 47 is of an independent steam heating type, it is easy to optimally control the temperature.

The back material 44 thus heated is pressed by a pushing unit 49 having guide rollers 48 attached to both ends in the width direction of the siding material so as to wrap the foam material injected onto the base material 17. Pressed into both sides of the.

After that, the foaming material is injected onto the base material 17 and is sent to the foam hardening and conveying machine 43 in the next step in a state where the backing material 44 is applied, and the foaming material is foamed and hardened while being conveyed.
It is integrated with the substrate 17.

The foam hardening / transporting machine 43 supports the foaming pressure through a lower endless transport mechanism 52 composed of a slat conveyor 51 on which the base material 17 is placed and transported, and a back material 44. And an upper endless conveyor mechanism 54 configured with a belt conveyor 53 that conveys the siding material while the thickness of the siding material in the width direction is constant. The whole can be tilted so as to cope with the case where the thickness changes uniformly.

As the tilting mechanism of the belt conveyor 53, by simultaneously operating, a tilting nut 57 that comes into contact with the support frame 56 of the belt conveyor 53 on a slope is screwed into the left and right screw shafts 55 that move up and down the entire belt conveyor 53. Then, the support shafts 58 at both ends of the tilting nut 57 are inserted through the fixing bracket 59 attached to the support frame 56,
Moreover, the slope 6 is also provided on the contact surface of the fixing bracket 59 with the fixing frame 60.
1 is formed.

Accordingly, the manual clutch disposed in the middle to connect the left and right operation shafts installed for simultaneously operating the screw shafts 55 on both sides of the belt conveyor 53 is released, and one of the screw shafts 55 is released. After rotating the motor with the elevating motor to set the inclination angle to a predetermined angle, the manual clutch is re-engaged so that the tilting nut 57 moves up and down, and the supporting nut connected to the tilting nut 57 via the support shaft 58. The frame 56 is inclined, and the respective inclined surfaces are in close contact with the support frame 56 and the fixed frame 60, so that the inclined state of the belt conveyor 53 is maintained.

In this inclined state, since the entire belt conveyor 53 is inclined, problems such as meandering of the belt are avoided.

The upper and lower endless transport mechanisms 52, 5
Numeral 4 is housed in a casing 62 and can be heated to an atmosphere temperature optimal for foaming and hardening of the foam material, and circulates warm air generated by a heater 63 using steam as a heat source. I have.

This warm air is supplied to the lower slat conveyor 51.
In the part of the belt, the nozzle is blown upward in the loop, while in the part of the upper belt conveyor 53, the hot air is blown directly on the surface of the belt, and the atmospheric temperature in the casing 62 is also 50 °. It can be maintained at about 90 ° C.

The siding material having undergone the foam hardening in this way is carried out of the foam hardening and transporting machine 50 and sent to the seal material inserting machine 64.

The sealing material inserter 64 is provided with a gutter-shaped sealing groove 17a formed on the side surface of the siding material base material 17.
A soft rod-shaped sealing material 65, for example, a foamed product of rubber or plastic, is continuously inserted into the sealing member 65. Therefore 2
A drum 67 around which a sealing material 65 is wound is attached to a vertical guide shaft 66 of the book, and is pulled out by guide rolls 68 and pinch rolls arranged above and below, and a guide cylinder 69
As a result, the siding material is sent out to the vicinity of the seal groove 17a of the base material 17, and is pushed into the seal groove 17a by a pushing roll 71 facing the receiving roll 70.

The continuous feeding is possible by alternately feeding the two drums 67.
8 and the indentation roll 71
By using the above-mentioned driving source, the driving can be performed in synchronization with the line speed.

The siding material containing the sealing material 65 in this way is sent to the cutting machine 72 in the next step.

The cutting machine 72 includes a backing material 44 of the siding material, a first cutting blade 73 for cutting the foam material, and a second cutting blade 74 for cutting the base material 17. The first and second cutting blades 7 are measured by a signal from a measure roll 75 for measuring the feeding length.
3, 74 is moved to a predetermined position and cut.

That is, when the length measurement signal from the measure roll 75 approaches the cutting length of the siding material, the cutting machine 7
When the set cutting length is equal to the feed length of the siding material, the control is switched to the tuning control and the first cutting blade 73 cuts the back material 44 and the foam material.

After that, the cutting machine 72 is again moved by the length measurement signal of the measure roll 75 so that the second cutting blade 74 is positioned at the position cut by the first cutting blade 73, and the tuning control is performed and the siding material is controlled. The lower blade and the horizontal blade that hold the blade are brought into forward contact, and the substrate 17 is cut by the second blade cutting blade 74 to complete the cutting. After that, the cutting machine 72 is returned to the standby position and prepares for the next cutting.

The siding material thus cut is sent to a packing device (not shown) and packed.

The siding material manufactured in this manner is used as a siding material 1 for flat application having a constant cross-sectional thickness as shown in FIG. And is used as an exterior material of a building.

According to this method for continuously producing siding material, the injection position of the foamed material is moved in the line direction in accordance with the line speed of the continuous production line. While injecting on the side
When the line speed is high, the injection is performed on the upstream side in the line direction, the back material is always applied in an optimal state, and the foam material can always be sent to the foam hardening and conveying machine 43 in the same foaming state.

As a result, even if the line speed changes, it is possible to prevent the occurrence of a defective portion that cannot be made into a product.

According to such a continuous siding material manufacturing apparatus, the uncoilers 11 and 12 are connected to the uncoilers 11 and 12 while replenishing the coils 15 and 16 serving as the base material 17, and the back material 44 is also supplied to the two back material. The siding materials 1 and 2 can be continuously manufactured by sequentially feeding from the machines 45 and 46.

Also, when the production of two types of siding materials 1 and 2 having different cross-sectional shapes is switched, the roll stand 33 on the slide base 32 of the molding machine 31 is moved and the belt on the upper side of the foam hardening and conveying machine 43 is moved. It can be easily handled only by adjusting the inclination of the conveyor 53.

Further, in the continuous production, it is necessary to prevent the foam material from being deposited and hardened in the foam material injecting machine 39. However, the nozzle 42 is directly attached to the mixer 41 so that the passage through which the foam material passes after mixing. As a result, the continuous injection can be performed without any trouble.

Further, since the foaming material injecting machine 39 can be swung in the direction perpendicular to the line, the foaming material can be uniformly injected in the width direction onto the base material 17 and foamed.

[0060]

According to the method for continuously producing a siding material of the present invention, as described above in detail together with one embodiment, the injection position of the foamed material in the line direction is changed according to the line speed of the continuous production line. When the line speed is low, the injection is performed on the downstream side in the line direction.On the other hand, when the line speed is high, the injection is performed on the upstream side in the line direction. And can always be sent to the foam hardening and transporting machine in the same foaming state.

Thus, it is possible to prevent the occurrence of a defective portion that cannot be produced in a product even if the line speed changes.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a first half of an example of a manufacturing apparatus to which an embodiment of a continuous manufacturing method of a siding material of the present invention is applied.

FIG. 2 is a schematic front view of a latter half of an example of a manufacturing apparatus to which an embodiment of the continuous siding material manufacturing method of the present invention is applied.

FIG. 3 is a schematic plan view of a first half of an example of a manufacturing apparatus to which an embodiment of the continuous siding material manufacturing method of the present invention is applied.

FIG. 4 is a schematic plan view of a latter half of an example of a manufacturing apparatus to which an embodiment of the continuous siding material manufacturing method of the present invention is applied.

[Explanation of symbols]

 Reference Signs List 1, 2 Siding material 11, 12 Uncoiler 19 Pinch roll joint device 22 Accumulator 25 Pinch roll 26 Down cut shear 27 Heater 28 Embossing machine 30 Leveler 31 Molding machine 36 Preheater 39 Foam injection machine 40 Moving frame 41 Mixer 42 Nozzle 43 foaming hardening transport machine 44 back material 45,46 back material feeder 47 back material heater 49 pushing unit 52,54 endless transport mechanism 60 casing 64 seal material inserting machine 72 cutting machine

Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location // B29K 105: 04 B29L 31:10

Claims (1)

(57) [Claims] 1. A method of manufacturing a siding material by continuously injecting a foaming material into a substantially gutter-shaped base material and then applying a backing material to the backing material according to a line speed of a continuous siding material production line. A method for continuously producing a siding material, wherein the injection position of the material is moved in the line direction.