JPH0746491Y2 - Local pressure dielectric heating device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is to install a pressure tool at each work location at an adhesive joint at each location of various woodworking assembly members.
The present invention relates to a novel dielectric heating device in which a high-frequency power source is applied to the electrode plate and these construction points are simultaneously adhesively molded.

(Prior Art) In the past, in bonding wood parts, various high-frequency heating devices have been used for manufacturing laminated wood and plywood, and for pressure forming on the same plane such as a plate strip or a frame. However, there is not yet a device for simultaneous and local pressure and dielectric heating at the time of assembling, adhering, and joining the wood tool members. Therefore, it was necessary to wait for the adhesive to cure.

(Problems to be solved by the invention) Therefore, in the invention, when manufacturing furniture or the like, for example, in assembling a frame such as an elbow, a lean, a seat and a leg in a chair or the like, there are several locally bonded portions at three-dimensional positions. Sandwich the two electrode plates from both sides with a metal pressure tool,
It is an object of the present invention to provide a pressurizing dielectric device capable of simultaneously applying a high frequency power source to them and simultaneously adhering these parts in a few seconds.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a metal frame to each portion to be combined and joined by an adhesive at each adhesive joint portion at an arbitrary position of various woodworking assembly members. Attach the body of the body pressure tool. An insulator having a tuning coil attached to the main body, an anode plate, and a lever type pressure arm facing the anode plate, or a sandwiching pressure tool composed of a pressurized fluid cylinder and a cathode plate,
Each of the adhesive joints is sandwiched under pressure or held under pressure, and the plus side core wire of a high frequency coaxial cable wired from a separately installed high frequency heating power source oscillator is connected to the tuning coil, and the minus side outer conductor is attached to the cathode plate on the main body side. It is a local pressurization dielectric heating device which is connected to each side ground line.

(Function) In the local pressure induction heating device of the present invention configured as described above, an adhesive is applied to each adhesive joint part of a woodworking assembly member such as furniture to combine them, and a tuning coil of a pressure tool is attached. The anode plate is brought into contact with the inside of the insulator, and the cathode plate is brought into contact with the inside of the metal pressure arm that faces the insulator, and these electrode plates are joined together by the lever action of the pressure tool or the piston force of the pressure cylinder. Hold the part under pressure. Then, a high-frequency coaxial cable from the separately installed high-frequency power-supply oscillator is wired to the pressurizer body at each joint as described above, and high-frequency power is simultaneously applied from the high-frequency power oscillator. The bonding process is completed.

After the work is completed, the pressing device at each place may be removed.

(Embodiment) An embodiment will be described with reference to the drawings. In assembly work of a frame such as an elbow, a lean, a seat and a leg in a chair or the like as shown in FIG. An adhesive joint (J) is provided with a metal pressure tool body (1) as shown in FIG. 1, and an insulator (2) such as Bakelite having a tuning coil (3) attached to the body (1). )
Anode plate (4) in contact with the inner side of the electrode, a pressure arm (1 ') due to the lever action opposed thereto, and a cathode plate (5) in contact with the inner side of the pressure adjusting screw (9). The adhesive joint part (J) is sandwiched or pressed under pressure by means of, and the plus side core wire of the high frequency coaxial cable (8) from the separately installed high frequency power source oscillator (G) is fed to the tuning coil (3) and the outside of the minus side. The conductor is connected to the press tool body (1) side. The pressure tool shown in FIG. 3 shows another embodiment of the method of pressing the adhesive portion (J) by the piston force of the thin air cylinder (7) instead of the lever type vise shown in FIG. Is.

(Effects of the Invention) Since the present invention is configured as described above, it has the following effects.

According to the present invention, the conventional high-frequency heating processing in the wood bonding processing is limited to the pressure molding processing on the same plane such as laminated wood, plywood or frame at the time of parts,
Widely applied to the bonding process of assembly members such as woodworking furniture, and using individual pressure tools with a relatively simple structure, securely clamp or press-bond each bonding point in a three-dimensional part to perform high-frequency dielectric heating. It enables simultaneous bonding in a few seconds, and has the effect of expecting epoch-making high efficiency and accurate finishing results compared with the conventional natural drying method.

[Brief description of drawings]

FIG. 1 is a front view of a vise-type pressure tool, FIG. 2 is a perspective view showing a state of partially heating wiring at each joint in the assembly and bonding process of a chair, and FIG. 3 is a pressure tool by a thin air cylinder. It is a perspective view showing an attached state of. 1 ... Pressure tool body, 1 '... Pressure arm, 2 ... Insulator, 3
...... Tuning coil, 4 ... Anode plate, 5 ... Cathode plate, 6 ...
Spring, 7 ... Thin air cylinder, 8 ... High frequency coaxial cable, 9 ... Pressure adjusting screw, 10 ... Air hose, J
…… Adhesive joints, G …… High frequency power oscillator

Claims (1)

[Scope of utility model registration request] 1. A metal pressurizing tool main body is provided at an adhesive joint at each position of various woodworking assembly members, and an insulator and an anode plate having a tuning coil attached to the main body, and the body facing each other. Squeeze lever pressurizing arm or pressurizing fluid cylinder and cathode plate both press and hold or press-contact the adhesive joint, and attach the plus side core wire of the high frequency coaxial cable from the separately installed high frequency power source oscillator for heating. A local pressurizing dielectric heating device, characterized in that a minus external conductor is connected to the tuning coil to the pressurizing tool main body side, and the adhesive joints at the above-mentioned locations are simultaneously adhesively molded by dielectric heating.