JP3361983B2 - Compression molding device with magnet roll - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention adheres a material that is attracted by a magnetic force, for example, a material that is not attracted by a magnetic force to a base material made of a steel plate, such as a decorative plate made of melamine resin, a vinyl chloride sheet, a cloth, a wood board, The present invention relates to a pressure-bonding molding apparatus that employs a magnet roll for sticking via a chemical.

[0002]

2. Description of the Related Art As a conventional technique, a decorative plate is attached to a base material of a steel plate with an adhesive so that a backup jig as shown in FIGS. 6 and 7 and upper and lower pinch rollers are pressed against each other. . This will be described in more detail. For example, when the decorative plate 3 is attached to the top plate 1 of the desk via the adhesive 2, the shape of the end portion formed on the top plate 1 and the shape of the reinforcing horizontal bar 4. When the pinch rollers 5 are pressed against each other, the backup jig 6 is required to fill the space so that the upper and lower pinch rollers 5 can be uniformly applied with pressure at the bonding portion.

If the backup jig 6 changes in product size, shape, size, and size, it is necessary to prepare a dedicated backup jig 6 for each product. A top plate 1 made of a steel plate on a backup jig 6 having a flat bottom
Decorative plate 3 that is placed on the backing jig 6 and the top plate 1 which is the base material with the adhesive 2 interposed
In order to reduce the thickness of the stacked products (before the adhesive is hardened), insert them between the upper and lower pinch rollers 5 and apply pressure with the pinch rollers 5 to move left and right as indicated by arrow C. And the decorative plate 3 is evenly bonded by the adhesive 2.

[0004]

However, the above-mentioned prior art has the following problems. First, the backup jig 6 that matches the irregularities formed on the back side of the base material is required. This causes a problem that the decorative plate swells due to insufficient pressure if there is a gap for pressing the adhesive from above and below.

In addition, there is a problem that the size between the upper and lower pinch rollers 5 must be adjusted so that a predetermined pressure is applied to the upper and lower pinch rollers 5 due to a change in product thickness in order to pass the upper and lower pinch rollers 5. Although there is a pressing method using a flat press, there are limits to the shape and size of the base material.

Further, as shown in FIG. 7, since pressure is not completely applied to the portions (A) and (B) in which the base material has a bag shape, the swelling of the decorative plate is caused at this portion. There is a problem that causes it.

In view of such circumstances, the present invention solves the above-mentioned drawbacks of the prior art and solves it with a simple structure. It eliminates the use of backup jigs and uses the property of the base material that is attracted by magnetic force to promote the pressure bonding action by magnetic force while the product is reciprocating on the rotatable magnet roller, and attracts to the magnetic force. It is an object of the present invention to provide a pressure-bonding molding device using a magnet roll that attaches a decorative plate that is not protected to a base material that is attracted by magnetic force via an adhesive.

[0008]

The present invention is intended to solve the above-mentioned problems, and employs the following technical means. In the invention according to claim 1, in a pressure-bonding molding apparatus for adhering a plate made of a material which is not attracted by a magnet to a plate made of a material attracted by a magnet through an adhesive, a large number of magnet rollers are assembled in parallel. A technical means is adopted in which a magnet roll shaft and a plurality of magnet roll shafts are provided in parallel in the same direction, and the magnet roller or the magnet roll shaft is rotatably provided.

According to the invention of claim 2, claim 1
In addition to the invention described above, by changing the width of the magnet roller assembled to the magnet roll shaft, when the magnet roll shafts are installed in parallel, the technical means of enabling the magnetic field to act uniformly without a gap. Adopted.

According to a third aspect of the present invention, in addition to the first and second aspects of the present invention, spacers are provided in parallel with each other in order to create a magnetic field between a plurality of magnet rollers. Adopted technical means.

According to a fourth aspect of the present invention, in addition to the first, second, and third aspects of the present invention, a rubber roll shaft is provided between a plurality of magnet roll shafts provided in parallel, and the magnet roll is provided. Alternate shaft and rubber roll shaft,
Alternatively, a technical means of arranging one rubber roll shaft for a plurality of magnet roll shafts is adopted.

According to the invention of claim 5, claim 1
In addition to the invention according to any one of claims 4 to 4, a product feed conveyor for performing crimp molding and a product transport also serving as a guide above a rotatably provided magnet roll shaft composed of a plurality of products. Adopted the technical means that the device can be moved up and down.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 4, the present invention uses a magnetic field (force) generated from the S pole and N pole of a magnet to
A base material (for example, a top plate) made of a steel plate or the like that can be attracted by magnetic force is pulled toward the magnet roll side, and a pressure is evenly applied to a decorative plate (such as a melanin resin plate that cannot be attracted by magnetic force) via an adhesive in the middle part. In addition, the product is moved to the outside so that pressure may be applied from the end to the other end so that air does not enter the adhesive layer, and the base material and the decorative material are bonded.

[0014]

[First Embodiment] First, as applications, furniture made of steel sheet as a base material, for example, desks, table tops, storage cabinets, cabinet doors, sliding doors, partition panels, wall panels, doors, furniture It is used for attaching a decorative material to the outer surface of the body. The base material can be variously applied as long as it is a material such as a steel plate that has a magnetic attraction. The adhesive is not particularly limited, but it is preferable that the curing reaction time of the adhesive is not too long. As the decorative material, a decorative plate made of melanin resin, a vinyl chloride sheet, cloth, paper, a wood board, etc. are targeted.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hold the article temporarily with magnetic force,
It is a conventional practice to send articles with a magnet roller. By applying this technique, the present invention utilizes the fact that the same force as when an object is sandwiched can be exerted by utilizing not only temporary holding by strengthening the magnetic force but also stronger holding action. It is a crimping molding apparatus that solves the problem of.

The first embodiment of the magnet roll shaft will be described in detail with reference to FIG. 2 which is a front view of the magnet roll shaft and FIG. 3 which is a sectional view thereof. A large number of magnets 9 (magnet rollers) in a state in which a cylindrical magnet is sliced are inserted in the shaft 8 and spacers 11 are interposed between the magnets 9 and both ends thereof are locked by locking tools 10. When the decorative plate is made of a soft material, the surface of the magnet roller is coated with a synthetic resin to prevent scratches.

Next, the principle will be described with reference to FIG. 4. In order to secure a large magnetic force, the magnet 9 is divided into a plurality of parts with respect to the width of the magnet roll shaft 7 (the maximum width of the product), and S is provided between them. A spacer 11 for blocking the pole and the N pole is inserted. Then, the magnitude of the magnetic force can be changed by the number of divided magnets 9. The magnet 9 may be a single magnet without being divided.

A plurality of magnets 9 each having an S pole and an N pole are arranged in parallel, and a spacer 11 made of a material for blocking the adjacent S pole and N pole is provided in between. The decorative plate 3 (surface material) side is placed on the side in contact with the magnet roller. The decorative plate 3, the adhesive 2, and the top plate 1 (steel plate) are temporarily attached to the magnet roll shaft 7 and reciprocally moved to adhere the top plate 1 by the magnetic force of the magnet (magnet roller). The agent 2 and the decorative plate 3 are pressure-bonded and molded. At this time, the top plate 1, the adhesive 2, the decorative plate 3
Between the total thickness t ₂ of the magnets and the height t _{1 on} which the magnetic force of the magnet 9 serving as each magnet roller acts as follows (t ₁
> T ₂ ) is satisfied.

Next, a second embodiment of the magnet roll shaft will be described with reference to FIG. By changing the width of the magnet roller assembled to the magnet roll shaft, when the magnet roll shafts are installed in parallel, the range in which the magnetic force acts can be made uniform without gaps, which can be understood from FIG. 5, for example. As described above, the magnet roll shaft 7 in which the position of the gap formed by the spacer 11 is changed in order to make the thickness of the magnet 9 at one end thinner than the thickness of the other magnets 9 and make the portion where the magnetic force acts uniform By alternately arranging the magnet roll shafts 7 shown in FIG. 2 above, the magnet roll shafts 7 can be uniformly crimped so that no streaks are formed after the bonding.

It should be noted that either the entire magnet roll shaft 7 or the individual magnets 9 may be rotated as long as they are rotatable. This rotation can be freely rotating or forcibly rotating.
As for the forced rotation, each magnet roller shaft 7 is synchronized with or changed from the driving source of the product conveying device via the gear, the belt, etc. to change the adhesive 2 and the decorative plate 3. It is designed and adopted according to the kind.

Next, a concrete example of the pressure-bonding molding apparatus will be described in detail with reference to FIG. The adhesive 2 applied on the decorative plate 3 in advance and the top plate 1 are set, and are sent to the pressure molding device by the product feeding conveyor 12. The backup jig 6 is not required for this, and the top plate 1
Will be pulled by the magnetic force of the magnet 9, so that the top plate 1 is pulled to the side of the decorative plate 3 placed on the magnet roll shaft 7 via the adhesive 2, resulting in pressure bonding. It is a thing.

In this press-molding apparatus, a plurality of magnet roll shafts 7 may be arranged in parallel, or the rubber roll shafts 13 and the magnet roll shafts 7 may be arranged alternately as shown in FIG. Further, a product conveying device 14 (for example, a feeding belt) is provided above the magnet roll shaft 7 so as to be vertically movable so that the product can be reciprocated in a stable state.

Needless to say, it is also possible to place the product on the magnet roll shaft 7 and move the product reciprocally without using the product feed conveyor 12 and the product transfer device 14. Absent.

By increasing or decreasing the number of the magnet roll shafts 7, the type of the adhesive 2 can be dealt with. In addition, as an application, the magnet roll shaft 7 can be arranged in a curved shape in accordance with not only a flat surface but also an arcuate shape of a corner portion, or the magnet roll shaft 7 at an end portion can be moved in accordance with what is crimped at a corner portion. You can also do so.

[0025]

As a result of adopting the above configuration, the present invention provides
The following effects can be obtained. (1) No backup jig is required at all. (2) Since it is not a pressing method using the upper and lower pinch rollers, it is not necessary to adjust the size and pressure between the rolls. (3) Since the backup jig is unnecessary, the shape of the base material is free. For example, even if (A) and (B) of FIG. 1 are bag-shaped, the flat steel plate can be pulled and a uniform force can be applied. A hollow panel-shaped object is also possible. (4) Various materials can be used by changing the magnetic force of the magnet roller depending on the thickness and material of the decorative material. (5) In the case of a soft decorative material, it is possible to prevent the effect on the decorative material by applying a surface resin coating to the magnet roller.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a pressure-bonding molding apparatus using a magnet roll of the present invention.

FIG. 2 is a front view showing a first embodiment of the magnet roll shaft of the present invention.

3 is a cross-sectional view of the magnet roll shaft shown in FIG. 2 of the present invention taken along line D-D.

FIG. 4 is a front view for explaining the principle of the present invention.

FIG. 5 is a front view showing a second embodiment of the magnet roll shaft of the present invention.

FIG. 6 is a cross-sectional view showing the relationship between a conventional backup jig and a product.

FIG. 7 is a cross-sectional view showing a conventional pressure-bonding molding apparatus using a pinch roller.

[Explanation of symbols]

1 ... Top plate 2 ... Adhesive 3 ... Decorative plate 4 ... Reinforcing horizontal bar 5 ... Pinch roller 6 ... Backup jig 7 ... Magnet roll shaft 8 ... Axis 9 ... Magnet (magnet roller) ) 10 Locking device 11 Spacer 12 Product feed conveyor 13 Rubber roll shaft 14 Product transport device

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-199482 (JP, A) JP-A-2-219615 (JP, A) JP-A-1-320634 (JP, A) JP-A-55- 80596 (JP, A) JP-A-51-14958 (JP, A) Jitsukaihei 1-119095 (JP, U) JP-B-45-12044 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B32B 1/00-35/00

Claims (5)

(57) [Claims] 1. A magnet roll shaft having a large number of magnet rollers assembled in parallel in a pressure-bonding molding apparatus for adhering a plate material made of a material that is not attracted by a magnet onto a plate material made of a material that is attracted by a magnet via an adhesive. A plurality of magnet roll shafts are provided in parallel in the same direction, and the magnet roller or the magnet roll shaft is rotatably provided. 2. When the magnet roll shafts are installed in parallel by changing the width of the magnet roller assembled to the magnet roll shaft, the magnetic force can be applied uniformly in a range without a gap. Item 1. A pressure molding device using a magnet roll according to Item 1. 3. The pressure-bonding molding apparatus using a magnet roll according to claim 1, wherein a spacer is provided in parallel between the plurality of magnet rollers to create a magnetic field, and the magnet rollers are provided in parallel. 4. A rubber roll shaft is provided between a plurality of magnet roll shafts arranged in parallel, and the magnet roll shafts and the rubber roll shafts are alternately arranged, or one rubber roll shaft is arranged for a plurality of magnet roll shafts. The pressure-bonding molding apparatus using a magnet roll according to claim 1, claim 2, or claim 3. 5. A product feed conveyor for performing pressure-bonding molding, and a product transport device, which also functions as a guide, is provided above and below a rotatable magnet roll shaft made up of a plurality of products so as to be vertically movable. A pressure-bonding molding apparatus using the magnet roll according to any one of claims 1 to 4.