JP2843950B2 - Method of fixing work material - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fixing a work material to a drawing machine, an engraving machine, a cutting machine, or the like, which is controlled by a computer, for example.

[Conventional technology]

2. Description of the Related Art In a drawing machine, an engraving machine, a cutting machine, and the like, in which drawing or material processing is automatically performed by computer control, a method of fixing paper or a material to be processed on a drawing or processing table has been conventionally represented as follows. There are six methods.

(1) A method of fixing with a magnet.

(2) A method of electrostatically adsorbing.

(3) A method of fixing using a temporary adhesive.

(4) A method of adsorbing and fixing by suction under reduced pressure.

(5) A method of fixing with a vise.

(6) A method of fixing with double-sided tape.

The six commonly used methods will be briefly described as follows.

(1) Using a magnet: A sheet is fixed on a magnet sheet 53 in an XY plotter, and the periphery of the sheet 51 is pressed by a paper guide 52 as shown in FIG.

(2) Using electrostatic attraction: A film or paper is fixed on the drawing table by generating an electrostatic attraction force on a drawing of an XY plotter.

(3) Using temporary adhesive: The drawing of the XY plotter and the film or paper placed on this surface can be temporarily adhered and fixed using peelable adhesive.

(4) Vacuum type: Used for a large-scale automatic drafting machine or engraving machine. As shown in FIG. 6, a work material is fixed on a vacuum table connected to a pump unit that sucks air.

(5) Using a vise The material to be engraved is mechanically tightened and fixed from both sides.

(6) Using double-sided tape: A work material placed on the surface of the XY plotter is adhered and fixed to the drawing of the XY plotter using a double-sided tape.

[Problems to be solved by the invention]

Each of the six methods has problems, and each problem will be described below.

(1) Using a magnet: This method as illustrated in FIG. 5 has poor fixing performance of the paper 51. For example, as shown in FIG. 7, the paper 51 is easily lifted off the magnet sheet 53, and the nib 54 'of the pen 54 which should be lifted and separated from the paper 51 may touch the raised paper 51. If the paper guide 52 is not properly placed, the drawing area becomes narrow, or the pen tip 54 'of the pen 54 falls on the paper guide 52 and drawing becomes impossible.

Further, since two to four paper guides are required, it takes time and effort to fix the paper, and it is inevitable that the operation procedure at the time of attaching / detaching the paper is deteriorated.

(2) Using electrostatic attraction: If physical properties change according to the type of film or paper, fixing may not be possible depending on the range of the change, and the cutting sheet may not be fixed sufficiently. In addition, when temperature and humidity decrease (5 ° C, 20% RH or less)
Adsorption performance decreases. For these reasons, this method is mainly applied to flatbed plotters, and the target models tend to be limited.

(3) Using temporary adhesive: This method may cause the paper to curl or extend due to the effect of the temporary adhesive after the paper is peeled off from the drawing.

In the case of an engraving material, it is necessary to remove the glue remaining on the material.

When this usage is repeatedly used, the adhesive is transferred from the fixing surface to the material to be processed, so that the fixing performance is deteriorated. If dust adheres to the fixing surface, it is difficult to regenerate the adhesive force.

(4) Vacuum: often applied only to large-scale automatic drafting machines and engraving machines.

This method is originally called a vacuum clamping system, and it is possible to use light and heavy magnetic materials, plastics,
It is often used for processing non-ferrous materials such as glass, ceramics and wood, and when diverted to fixing paper or a material to be processed in a drafting machine, engraving machine, cutting machine, etc., which is the object of the present invention, Therefore, it is necessary to select the type of the vacuum table, and it is necessary to use a vacuum seal according to the shape of the material.

Further, since a vacuum motor is used, the device tends to be large-scale.

FIG. 6 is a schematic view for explaining an example of the structure, in which 61 is a vacuum table, 62 is an air filter, 63 is a pump unit, and 64 is a power supply.

(5) Using a vise: Used for fixing a rigid body with a fixed thickness. However, in the case of a nameplate engraving, etc., as shown in FIG. There is a concern that the depth of the surface will not be constant.

FIG. 8 shows that the engraving material 81 is bent by tightening the vise 82 via the screw 84. In addition,
Reference numeral 83 denotes an end mill for engraving the engraving material 81.

(6) Using double-sided tape: After drawing, it is difficult to remove the double-sided tape from the paper. Therefore, it is practically used only for engraving for rigid bodies. It takes time. For some materials, it is necessary to remove the double-sided tape using a solvent.

FIG. 9 shows a cross-sectional model diagram when used for engraving. An engraving material 91 is placed on an XY table 92 of an engraving machine via a double-sided tape 93. 94 is a rotating spindle for machining, and 95 is a blade.

[Means for solving the problem]

In the present invention, a synthetic resin sheet material having a large number of fine suction holes serving as a micro suction cup is used for fixing the material to be processed.

Therefore, the method for fixing a material to be processed according to the present invention comprises fixing a synthetic resin sheet material having a large number of fine suction holes in advance on a processing table on which the material to be processed is mounted, and attaching the synthetic resin sheet material to the work table. The gist of the present invention is a method of fixing a work material, wherein the work material is detachably attached to the surface of the synthetic resin sheet material by an action.

(Operation)

The synthetic resin sheet material is, for example, foamed acrylic foam on a base cloth surface, and the surface has a structure in which fine suction cups are gathered, and the suction target is pressed when the surface to be attached is pressed. The surface comes into close contact with the synthetic resin sheet material due to the mechanical action.

The adhesiveness of the synthetic resin sheet material to the smooth surface is very excellent, and the function of attaching the material to be processed does not change even if the smooth surface becomes uneven, bent or bent.

Also, when adhered tightly, the strength when pulled in the horizontal direction with the attached surface is very strong, but it is easily peeled off when pulled in the direction perpendicular to the attached surface, and remains completely on the smooth surface after attachment. Absent. Therefore, the work material is reliably prevented from slipping, and the performance is not deteriorated even when the material is used repeatedly.

In terms of cost, 1/10 of the conventional magnet adsorption method,
It can be reduced to 1/30 of the electrostatic adsorption method and 1/100 of the vacuum method.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram illustrating a flatbed plotter in which the synthetic resin sheet material is applied.

Synthetic resin sheet material (hereinafter referred to as "sheet material")
Reference numeral 1 denotes a sheet drawing of a double-sided fixing type and a drawing 2 of a plotter 4.
And the sheet 5 is adhered. Reference numeral 3 denotes a plot head, which can grip a pen or a cutting pen to draw characters and figures on the paper 5 under computer control, or cut out the paper 5.

Films, cutting sheets, acrylic plate inscriptions, and the like can be fixed to the drawing 2 with sufficient adhesive force, and favorable results can be obtained when used for fixing them. Figure 2 shows the drawing 2 and paper 5 (paper, transparencies, drawing film,
FIG. 3 is a schematic cross-sectional view illustrating a relationship between a cutting sheet and the like and a sheet material 1. This sheet material 1 has fine suction holes distributed over the entire surface of the base fabric. Specifically, Hirose Paper Co., Ltd.
Manufactured by Hyster FX manufactured by Dainippon Printing Co., Ltd. or foamed acrylic or urethane foam manufactured by Dai Nippon Printing Co., Ltd. A synthetic resin sheet having a thickness of about 0.5 mm can be used. When the adhesive force of the sheet material 1 is deteriorated due to dirt, the adhesive force can be easily recovered by wiping with a wet napkin or the like.

The adhesive force of the sheet material 1 does not show a significant change at normal temperature and normal humidity.

FIG. 3 is a perspective view for explaining a case where the sheet material 1 is applied to an engraving machine 6 in another embodiment. An engraving material 8 such as an acrylic plate or an inscription plate is attached by being pressed to a sheet material 1 fixed to a work (made of resin) 7 which is exposed. FIG. 4 is a cross-sectional model diagram showing the relationship between fixation and adhesion of the work 7, the engraving material 8, and the sheet material 1.

In the method of the present invention, when the synthetic resinous sheet material to which the paper or the material to be processed is adhered is fixed to the worktable surface on which the paper or the material to be processed is mounted, the fine sucker is attached to only one surface of the synthetic resinous sheet material. When the holes are distributed, the multi-surface side is adhered to the processing table by an appropriate bonding means.When the fine suction holes are distributed on both the front and back surfaces of the synthetic resin sheet material, the fine surface on any one side is fine. A mode of adhering to the processing table surface by the suction force of the suction hole is arbitrarily applied.

(Effect)

As described above, in the method for fixing a work material according to the present invention, the surface to be adhered adheres to the surface by the suction-like effect of the suction holes distributed over the entire surface of the synthetic resin sheet material interposed between the work table and the work surface. When peeling, it is easily peeled by pulling in the direction perpendicular to the surface, so the operability accompanying the attachment and detachment of the material is good,
It shows a very strong resistance to the horizontal pulling force, so it has the effect of preventing accidental movement of the material without fail. be able to. It goes without saying that the smoother the surface on which the work material is fixed, the better the adhesion is. However, even if the surface is uneven, bent, or bent, the effect of fixing the work material does not change. Absent.

In the present invention, when the adhesion is deteriorated due to dirt as described above, with the convenience of being recovered by wiping with a wet napkin or the like, at an operating cost of 1/10 to 1/100 compared to the conventional method. Doing so also increases industrial utility.

[Brief description of the drawings]

1 to 4 show a specific embodiment of the present invention. FIG. 1 is a perspective view illustrating a specific example in which the present invention is applied to a flatbed plotter, and FIG. Fig. 3 is a cross-sectional model diagram showing the relationship between the type and the synthetic resinous sheet material, and Fig. 3 is a perspective view illustrating a specific example of the method according to the present invention suitable for an engraving machine, and Fig. 4 is a work and an engraving material. FIGS. 5 to 9 are cross-sectional model diagrams showing the relationship between fixation and adhesion between the sheet and the synthetic resin sheet material. FIGS.
FIG. 6 is a view for explaining an XY plotter using a magnet for fixing paper, FIG. 6 is a view for explaining a vacuum system, FIG. 7 is a view for explaining a problem of the apparatus using a magnet, and FIG. FIG. 9 is a diagram for explaining a vice method, and FIG. 9 is a diagram for explaining a device using a double-sided tape. 1 ... Synthetic resin sheet material 2 ... Working table (work drawing) 3 ... Plot head 5 ... Paper 7 ... Working table (work) 8 ... Engraving material

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B23Q 3/08 B43L 5/02 B26D 7/02

Claims (1)

(57) [Claims] 1. A synthetic resin sheet material having a large number of fine suction holes is previously fixed on a processing table on which a material to be processed is placed,
A method for fixing a material to be processed, characterized in that the material to be processed is removably adhered to the surface of the synthetic resin sheet material by the attaching action of the synthetic resin sheet material.