JPS5845870Y2 - Foam melt cutting processing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a processing device for melting and cutting foam with a heat-generating wire, and particularly relates to a device that can easily process cylinders, truncated cones, cones, etc.

Conventionally, processing using heat-generating wires has been widely used for processing foams such as bonstyrene and polyethylene because the finish is beautiful and no cutting waste is produced.

In particular, when these foams are processed and used for decorations or signboards, most of them are processed using heating wires.

In processing devices using these heating wires, the position of the heating wire is fixed, and the foam to be processed is cut by moving it manually on a table according to a pattern, or the foam is fixed and the heating wire is cut by hand. When cutting cylinders, truncated cones, cones, etc. using these methods, the heating element must be moved by hand using the method described above or the method described below. Since the foam is light and the cutting speed is not constant, the cutting accuracy is poor and it is very difficult to make the same shape.

Furthermore, if the method described later uses an electric motor to move and cut the heat-generating wire, the processing accuracy is good and the same product can be produced, but the device becomes large and very expensive, which is not common.

The present invention is a tabletop type, and provides a device that can process these cylinders, truncated cones, cones, etc. with high precision, easily, and at low cost. I will explain.

A hook 4 for hooking one side of the heating wire 3 is attached to the tip of a hook-shaped fixed shaft 2 attached to the end surface of the table 1, and a spring that is inserted into the hole 4A of the hook 4 and applying tension to the heating wire 3 is attached. 5 is provided.

The other end of the heating wire 3 is hooked onto a protrusion 7B of a mounting plate 7 for the heating wire 3 provided below the cutout groove 6 of the table 1.

Furthermore, a guide plate 16 used for straight line cutting that can be slid left and right is provided to form a melt cutting section.

The heating wire 3 is usually a nichrome wire, and heat is generated by applying a voltage adjusted by a voltage variable device to both ends.

The foam holder is made up of a rotating disk 8 on which the foam is placed and a support rod 9 that supports the upper part of the foam. The rotating disk 8 has protrusions 10 embedded therein to pierce and fix the foam. ,
A groove is provided at the peripheral end, and a string 11 is wound around the groove, so that when the string 11 is pulled, the rotating disk 8 rotates.

Further, the rotary disk 8 and the support rod 9 are attached to the slide base 12 so as to move as one, and can be moved left and right along the notched groove 6 using the shaft 13 of the rotary disk 8 as a guide. is fixed.

The support rod 9 can be moved up and down according to the height of the foam.

Its tip is located on the same perpendicular line as the rotary disk 8, and when machining a cone or truncated cone, in order to prevent the heating wire 3 and the tip of the support rod adjusting plate 15 from matching, the tip is shown in FIG. A support rod 9 as shown is used.

Next, we will describe a typical example of processing a prismatic cylinder into a cylinder using the device of the present invention. First, the heating wire is stretched vertically as shown in Figure 1, and then a paper pattern with the same diameter as the cylinder to be obtained is drawn. It is made of cardboard and is fixed by sticking it into the protrusion 10 of the rotating disk 8.

Next, the string 11 is wrapped around the groove of the rotary disk 8 one or more times, and while the support rod 9 is moved upward, a prismatic foam is stuck into the protrusion 10, placed on the rotary disk 8, and foamed with the support rod 9. It pierces and supports the upper part of the body.

In this state, the heating wire 3 is energized, the slide base is moved until the paper pattern comes into contact with the heating wire, and in the state of contact, the string 11 is pulled and the foam is rotated once to process it into a cylindrical shape.

In the case of a cone or a truncated cone, the heating wires are arranged in the state shown in FIG. 3 and the processing is carried out in the same manner as described above.

Furthermore, various other types of processing can be performed by applying this processing apparatus.

As mentioned above, when melt-cutting a rotating body such as a cylinder with the device of the present invention, the upper and lower sides of the foam are supported, and the string is used to rotate the foam for melt-cutting, so you can directly touch the foam with your hand. Since no force is applied and the foam does not shake, products with a beautiful appearance and high precision can be stably obtained.

Furthermore, since the device is simple, it does not break down, does not require skill and can be used by even amateurs, and the processing device is extremely inexpensive, among other advantages.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway side view of the present invention, FIG. 2 is a plan view taken from section A-A, and FIG.
The figure is another side view showing the machining state of a cone, truncated cone, etc., in which 1 is a table, 2 is a hook-shaped fixed shaft, 3 is a heating wire, 4 is a hook, 5 is a spring, 6 is a notched groove, 7 is a mounting plate, 8 is a rotating disk, 9 is a support rod, 10 is a protrusion, 11 is a string, 12 is a slide base, 13 is a shaft, 14 is a screw, 15 is a support rod adjustment plate, and 16 is a guide analysis.

Claims (1)

[Scope of utility model registration request] 1. A molten cutting section in which a heating wire 3 is stretched between a hook-shaped fixed shaft 2 attached to the end surface of the table 1 and a mounting plate 7 provided below the notch groove 6 of the table 1, and a foam to be cut are formed. A foam holder in which a rotary disk 8 having a plurality of protrusions 10 to be placed and a support rod 9 supporting the upper part of the foam are arranged on the same perpendicular line so that they can move together on the table 1. A foam cutting device characterized by comprising: 2. The foam melting and cutting apparatus according to claim 1, which is a utility model registered, wherein a groove is provided at the circumferential end of the rotating disk 8, and a string 11 is wound around the rotating disk 8 for rotation.