KR200374265Y1 - Booster cylinder for high frequency bonding machine - Google Patents

Abstract

The present invention is a high-frequency welding machine for heat-sealing in a state in which a pressing force is applied to an object: bodies 21, 22, 23 spaced apart in three segments on a straight line; An upper chamber 31 inserted between the upper body 21 and the intermediate body 22; A lower chamber 32 inserted between the intermediate body 22 and the lower body 23; An inner rod 25 mounted upward and downward on the intermediate body 22 and connected to the piston 24 of the upper chamber 31 at an upper end thereof; And an external rod (27) mounted on the lower body (23) via a retainer (28) to move up and down, and connected to the piston (26) of the lower chamber (32) at an upper end thereof. do. As another feature of the present invention, the upper body 21 has a flow path for entering the air into the upper space of the upper chamber 31.

Accordingly, it is easy to adjust the appropriate pressing force in accordance with the specification of the object has the effect of improving the product quality and productivity at the same time.

Description

Booster cylinder for high frequency bonder {Booster cylinder for high frequency bonding machine}

The present invention relates to a high frequency bonding machine, and more particularly, to a booster cylinder of a high frequency bonding machine to improve the product quality and productivity at the same time by easily adjusting the appropriate pressing force corresponding to the specification of the object.

In general, the high-frequency adhesive machine is a machine for causing rapid and uniform heating by causing dielectric phenomena inside a workpiece (product) and is usefully used in the field of bonding materials having extremely low thermal conductivity such as synthetic resin sheets such as shoes and toys.

Referring to FIG. 1, the lower plate 11 and the upper plate 12 are provided in a two-layer structure on the main body 10, and the movable plate 14 is disposed on the bottom surface of the upper plate 12 so as to face the lower plate 11. The superheat plate 15 is installed. In operation, a mold is first attached to the bottom of the hot plate 15 and an object is loaded on the bottom plate 11. Subsequently, when the first switch is operated, the mold is lowered to pressurize the product by the action of the cylinder, and when the second switch is operated, a high frequency voltage is applied to the hot plate 15 and the mold to bond the object.

However, in the conventional case, since the pneumatic pressure is used to drive up and down the movable plate 14 and the hot plate 15, the pressing force on the object is not large and the adjustment range is also narrow. Product defects, such as to cause a lot of repetitive work to avoid this is a lot of labor.

The present invention is to solve the above-mentioned disadvantages, and to provide a booster cylinder of the high-frequency gluer to improve the product quality and productivity at the same time easy to adjust the appropriate pressing force corresponding to the specification of the object.

1 is a front view showing the main portion of the high-frequency adhesive machine according to the present invention,

2 is a cross-sectional view partially terminating the booster cylinder according to the present invention,

3a and 3b is a front sectional view and a bottom view of the upper body according to the present invention, respectively,

Figure 4 is a front sectional view showing an enlarged middle body of Figure 2,

FIG. 5 is a cross-sectional view of the intermediate body A-A of FIG. 2;

Explanation of symbols on the main parts of the drawings

11: bottom 12: top

14: movable plate 15: hot plate

18: controller 20: booster cylinder

21, 22, 23: body 24, 26: piston

28: retainer 29: flange

31, 32: chamber

In order to achieve the above object, the present invention provides a high-frequency welding machine for thermal welding in a state in which a pressing force is applied to an object: bodies (21) (22) (23) spaced apart in three segments on a straight line; An upper chamber 31 inserted between the upper body 21 and the intermediate body 22; A lower chamber 32 inserted between the intermediate body 22 and the lower body 23; An inner rod 25 mounted upward and downward on the intermediate body 22 and connected to the piston 24 of the upper chamber 31 at an upper end thereof; And an external rod (27) mounted on the lower body (23) via a retainer (28) to move up and down, and connected to the piston (26) of the lower chamber (32) at an upper end thereof. do.

As another feature of the present invention, the upper body 21 has a flow path for entering the air into the upper space of the upper chamber 31.

As another feature of the present invention, the lower body 23 is provided with a flow path for entering the air into the lower space of the lower chamber (32).

As another feature of the present invention, the intermediate body 22 is provided with a flow path for entering and exiting the operating oil between the upper chamber 31 and the lower chamber (32).

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

1 is a front view showing the main portion of the high-frequency adhesive machine according to the present invention, Figure 2 is a cross-sectional view partially terminated booster cylinder according to the present invention.

The present invention relates to a high frequency gluer that is thermally fused in a state in which a pressing force is applied to an object. In FIG. 1, a booster cylinder 20 having a pneumatic part and a hydraulic part integrally mounted on the top plate 12 is installed to vertically move the movable plate 14 and the hot plate 15. Unexplained reference numeral 16 is a limit indicator for detecting the stroke end of the lifting and lowering, and reference numeral 18 is a controller for providing the electric and hydraulic pressure required for operation. The configuration of the booster cylinder 20 according to the present invention is described more clearly through FIG.

According to the present invention, the bodies 21, 22, 23 are arranged in three straight lines and spaced apart. The booster cylinder 20 has a piston installed in the inner chamber as in the general pneumatic cylinder, and an operating rod (reference 27) connected to the piston is exposed to the outside. The upper body 21, the intermediate body 22, the lower body 23 is a part of the important skeleton for constituting the pneumatic chamber and the hydraulic chamber of the booster cylinder 20 and the flow path for communicating each chamber as will be described later It is provided.

In addition, according to the present invention, the upper chamber 31 is inserted between the upper body 21 and the intermediate body 22, and the lower chamber 32 is inserted between the intermediate body 22 and the lower body 23. do. The upper chamber 31, which is a pipe member, is inserted between the upper body 21 and the intermediate body 22 to be hermetically interposed between the upper body 21 and the O ring. The lower chamber 32, which is a pipe member, is inserted between the intermediate body 22 and the lower body 23 so as to be hermetically sealed through an O-ring. Although it is easy to use welding as an insertion method, it may be tightened with a plurality of bolts. Of course, it is also possible to have a double cylinder structure in which another pipe member (not shown) is added to the outside to reinforce the mechanical coupling force by the bodies 21, 22, 23 and the chambers 31, 32. .

In addition, according to the present invention, the inner rod 25 connected to the piston 24 of the upper chamber 31 at the upper end is mounted to vertically move on the intermediate body 22, and the piston of the lower chamber 32 at the upper end. An external rod 27 connected with the 26 is mounted to move up and down on the lower body 23. The inner rod 25 is connected to the piston 24 accommodated in the upper chamber 31, and the outer rod 27 is connected to the piston 26 accommodated in the lower chamber 32. The inner rod 25 is mounted to slide in an airtight state on the intermediate body 22, and the outer rod 27 is slided in the airtight state through the retainer 28 on the lower body 23. Is mounted. The retainer 28 is a means for smoothly operating the outer rod 27 while securing an air passage in the lower body 23. The lower end of the inner rod 25 is ground to a loose fitting tolerance and is slidably accommodated at the upper end of the outer rod 27.

3A and 3B are front sectional views and a bottom view of the upper body according to the present invention, respectively, and FIG. 4 is a front sectional view showing an enlarged middle body of FIG. 2, and FIG.

The upper body 21 has a flow path for entering and exiting the air into the upper space of the upper chamber 31, the lower body 23 has a flow path for entering and exiting the air into the lower space of the lower chamber (32). do. In the chambers 31 and 32, the upper space and the lower space are named separately based on the respective pistons 24 and 26. In FIG. 3A, the flow passage 21a of the upper body 21 is formed in a U-shape in which the horizontal portion and the vertical portion cross each other, and allow air to enter and exit the upper space of the upper chamber 31. Reference numeral 21b is an annular groove for mounting the O-ring. In FIG. 2, since the outer body 27 having a large diameter passes through the lower body 23, the lower body 23 and the outer rod 27 are formed at a suitable interval while forming a linear flow path 23a horizontally instead of the ┛ type. To extend the flow path vertically. Accordingly, air enters and lowers the lower space of the lower chamber 32 through the flow path 23a. Support of the outer rod 27 is to be carried out by the retainer 28, not the lower body (23).

The intermediate body 22 according to the present invention has a flow path for entering and exiting the working oil between the upper chamber 31 and the lower chamber 32. 4 and 5, the flow passage 22a on one side extends vertically in the horizontal direction, and the flow passage 22b on the other side extends in the vertical direction in the horizontal direction. Therefore, when the two flow paths 22a and 22b are connected to a conduit (not shown) from the outside, the lower space of the upper chamber 31 and the upper space of the lower chamber 32 communicate with each other. At this time, the communicating space is filled with hydraulic fluid, and an external conduit may be provided with a pressure gauge, cooling means, and the like. Reference numeral 22c is an annular groove for mounting the O-ring.

In operation, when the object is placed on the lower plate 11 and the switch is operated, pneumatic pressure flows into the upper side of the upper chamber 31 to lower the upper piston 24, and then the hydraulic pressure of the lower space of the upper chamber 31 is reduced. The lower piston 26 is lowered while being transferred to the upper space of the lower chamber 32. At the same time, as the air is discharged from the lower space of the lower chamber 32, the external rod 27 receives an enhanced hydraulic pressure and pressurizes the hot plate 15 and the mold to perform the bonding operation.

As described above, the booster cylinder 20 of the present invention amplifies a small air pressure to generate a large work force, thereby easily changing the work force by adjusting the air pressure.

According to the structure of the present invention, an output ratio of about 3 tons and a boost ratio of 1:20 are achieved in the use pressure range of 3 to 5 kgf / cm 2, and the output increases in proportion to the increase in the use pressure range. The boosting ratio is determined according to the dimensions of the pistons 24 and 26, the rods 25 and 27, the flow path and the like, but may be varied by installing a separate control valve (not shown) on the hydraulic pressure circuit.

The booster cylinder of the high frequency welder by the construction and operation of the present invention described above has the effect of easily adjusting the appropriate pressing force corresponding to the specification of the object to improve product quality and productivity at the same time.

Claims (4)

In the high frequency welding machine which is heat-sealed with the pressing force applied to the object: Bodies 21, 22 and 23 spaced apart in three segments on a straight line; An upper chamber 31 inserted between the upper body 21 and the intermediate body 22; A lower chamber 32 inserted between the intermediate body 22 and the lower body 23; An inner rod 25 mounted upward and downward on the intermediate body 22 and connected to the piston 24 of the upper chamber 31 at an upper end thereof; And And an outer rod 27 mounted on the lower body 23 via a retainer 28 and connected to the piston 26 of the lower chamber 32 at an upper end thereof. Booster cylinder of high frequency gluer. The method of claim 1, The upper body 21 is a booster cylinder of the high frequency gluer, characterized in that it has a flow path for entering and exiting the air into the upper space of the upper chamber (31). The method of claim 1, The lower body (23) is a booster cylinder of the high frequency gluer, characterized in that it has a flow path for entering the air into the lower space of the lower chamber (32). The method of claim 1, The intermediate body (22) is a booster cylinder of the high frequency gluer, characterized in that it has a flow path for entering and exiting the working oil between the upper chamber (31) and the lower chamber (32).