KR100278542B1 - Sanding device for cutting edges of wood - Google Patents

Abstract

The present invention relates to a sanding apparatus for processing the edge of wood, in the device for polishing the edge of the wood (W) transported on the conveyor 11 by using the tool 16 receives the rotational force of the motor (15) Body 13 with clamp 14; A first bracket (21) mounted on the clamp (14) of the body (13) and having a plurality of rails (22) disposed inside; A second bracket (23) mounted on the first bracket (21) so as to be movable up and down via a slider (24) and joined to one side of the body to support the motor (15); A third bracket (26) coupled to an upper side of the second bracket (23) and extending to an upper portion of the wood (W); And a roller 27 mounted on the third bracket 26 so as to be movable upward and downward through a fixing plate 28 and rotating by frictional force in contact with the upper surface of the wood W. It is characterized by.

Therefore, in the process of processing the edge of the wood has the effect of improving the position of the tool in conjunction with the change in the thickness of the wood to prevent processing defects.

Description

Sanding device for cutting edges of wood

The present invention relates to a sanding device for edge processing on wood, and more particularly, to improve the processing position of the tool in the process of processing the edge of wood to cope with the change in thickness of wood The present invention relates to a sanding apparatus for cutting edges of wood to prevent defects.

In general, the wood used in the furniture industry is made of solid wood, which is cut from raw wood. It can be divided into medium density fiberboard (MDF) and the like.

Among such wood materials, PB and MDF are relatively inexpensive but have a disadvantage of rough surface. In particular, PB has a rougher surface than MDF. Most of the furniture is made by attaching the appropriate shape paper on the wood material such as PB or MDF, which is used to make the surface unevenness of the wood material. You have to.

1 is a block diagram showing a main part of a conventional sanding apparatus.

When the wood W is conveyed in a state of being firmly supported by the lower conveyor 11 and the upper belt 12, the motor 15 fixed by the clamp 14 on the body 13 of the sanding device is provided. Is activated and the tool 16 is rotated to perform friction sanding. The tool 16 used in this case is also called an abrasive material, so that the fiber does not occur in the polished edge surface to be adhered to maintain good surface roughness.

By the way, the wood (W) has a severe thickness variation while the tool 16 has a fixed position with the motor 15, resulting in poor quality, such as uneven edge shape when using a conventional sanding device do.

Accordingly, an object of the present invention is to provide a sanding apparatus for processing the edge of wood to improve the position of the tool in the process of processing the edge of wood to cope with changes in the thickness of the wood to prevent processing defects.

1 is a configuration diagram showing a main part of a conventional sanding apparatus;

Figure 2 is a front view showing a partially cut sanding apparatus according to the present invention,

Figure 3 is a side view showing a partially cut sanding apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

11: conveyor 12: belt

13: body 14: clamp

15: Motor 16: Tool

21: first bracket 22: rail

23: second bracket 24: slider

25: air cylinder 25a: between operation

26: third bracket 27: roller

27a: rotating shaft 28: fixed plate

29: adjusting screw 29a: spiral

W: wood

In order to achieve this object, the present invention provides a device for polishing an edge of wood (W) conveyed onto a conveyor (11) using a tool (16) subjected to rotational force of a motor (15): a clamp (14) Body 13 having a; A first bracket (21) mounted on the clamp (14) of the body (13) and having a plurality of rails (22) disposed inside; A second bracket (23) mounted on the first bracket (21) so as to be movable up and down via a slider (24) and joined to one side of the body to support the motor (15); A third bracket (26) coupled to an upper side of the second bracket (23) and extending to an upper portion of the wood (W); And a roller 27 mounted on the third bracket 26 so as to be movable upward and downward through a fixing plate 28 and rotating by frictional force in contact with the upper surface of the wood W. Provided is a sanding apparatus for processing the edge of wood.

As another feature of the present invention, the second bracket 23 is connected to a separate driving means for raising the roller 27 by generating a lifting force.

As another feature of the present invention, the fixing plate 28 is coupled via the adjustment screw 29 to be able to finely vary the interval with the third bracket (26).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front view showing a partially cut sanding device according to the present invention, Figure 3 is a side view showing a partially cut sanding device according to the present invention.

The invention relates to an apparatus for grinding the edges of wood (W) conveyed onto the conveyor (11) using a tool (16) subjected to the rotational force of the motor (15). The body 13 of such a device is provided with a removable clamp 14 as in the prior art.

2 and 3, according to the invention a first bracket 21 having a rail 22 arranged inwardly is mounted on the clamp 14 of the body 13. The first bracket 21 is formed by bending the iron plate in a "c" shape as clearly shown in FIG. 2, and the rail 22 fixes a pair of round bars at regular intervals as clearly shown in FIG. The rail 22 can use one round bar, but using two can ensure a more stable support.

In addition, according to the present invention, the second bracket 23 joined to one side of the body to support the motor 15 is capable of vertical movement through the slider 24 on the first bracket 21. Is mounted. In the related art, the second bracket 23 is directly connected to the clamp 14, and vertical movement is impossible. The sliders 24 are installed in an appropriate number on each rail 22, for example, two on each rail 22 to minimize bending moments due to the weight of the motor 15 and the tool 16. It is preferable that the slider 24 and the rail 22 which are in sliding contact use a rustproof material, such as stainless steel.

In addition, according to the present invention combines the third bracket (26) extending to the upper portion of the wood (W) to the upper side of the second bracket (23). The 3rd bracket 26 is shape | molded by bending or joining so that it may become "a" shape, and joining it in the position which can induce the up-down movement of the 2nd bracket 23 at the lower end part smoothly.

In addition, according to the present invention, the roller 27 which is rotated by the frictional force in contact with the upper surface of the wood (W) is mounted on the third bracket (26) via the fixing plate 28 to enable vertical movement. do. The diameter of the roller 27 is several times larger than the thickness of the wood (W), but the width of the roller 27 may not be large. The roller 27 does not necessarily need to use a metal material, but wear resistance of the material is required in consideration of sliding contact. The fixed plate 28 that accommodates the rotating shaft 27a of the roller 27 needs a connection for transmitting the up and down movement of the roller 27 to the third bracket 26.

At this time, the fixing plate 28 is coupled via the adjustment screw 29 to be able to finely vary the interval with the third bracket (26). The fixed plate 28 moves up and down according to the rotation of the adjustment screw 29 and the roller 27 is configured to interlock therewith, so that the helix 29a of the adjustment screw 29 is rotatable without detachment from the fixed plate 28. If it is accommodated, the fixing plate 28 and the third bracket 26 may not be directly connected. By using the adjusting screw 29 it is possible to finely adjust the relative position of the tool 16 and the wood (W).

In addition, the second bracket 23 of the present invention is connected to a separate drive means for raising the roller 27 by generating a lifting force. The driving means is to raise the roller 27 so that the wood (W) is easy to enter and exit when starting or ending the work using the apparatus of the present invention. It is done automatically.

By the way, the driving means of the present invention is preferably to use the air cylinder 25 to serve as a shock absorbing action. The air cylinder 25 is normally mounted to contact the lower end of the second bracket 23 at the bottom dead center of the operation period 25a. When pneumatic pressure is supplied to the air cylinder 25 and the operation period 25a reaches a top dead center, the assemblies of the third bracket 26, the fixed plate 28, and the roller 27 all rise to the same height. As such, when the air cylinder 25 is used, the shock transmitted through the roller 27 is normally damped by the air, thereby preventing damage to the wood (W) and deteriorating durability of the apparatus.

2 and 3, an example of the operation according to the present invention will be described.

When the tool 15 is rotated by applying power to the motor 15 to process the edge of the wood W, when the portion where the thickness of the wood W changes reaches the roller 27, the roller 27 is slightly raised. Or descend. Since the roller 27 is mechanically integrated with the third bracket 26, the second bracket 23, the motor 15, and the tool 16, the tool 16 at the moment when the roller 27 moves up and down. ) Also works correctly.

Accordingly, the relative position of the wood W and the tool 16 does not change, and the edge of the wood W is processed uniformly. If the thickness of the wood (W) is suddenly changed, the inertial force that can delay the vertical movement of the roller 27 occurs, but because the inertia force is relieved in the air cylinder 25, the position of the wood (W) and the tool 16 fluctuate Can be prevented.

At this time, referring to Figure 2, the roller 27 of the present invention is positioned so that the center of the rotation axis 27a is on the same vertical line as the center of the motor 15. As can be seen in the above-described operation, the roller 27 is installed so that the timing in response to the thickness of the wood (W) is on the same vertical line as the center line of the tool 16. In addition, the connecting portions of the roller 27, the fixing plate 28, the third bracket 26, the second bracket 23 and the like are firmly coupled so that there is no unnecessary play.

Sanding device for the edge processing of wood according to the present invention having such a configuration and action has the effect of improving the position of the tool in conjunction with the change in thickness of the wood in the process of processing the edge of the wood to prevent processing defects.

Claims (5)

In an apparatus for grinding the edges of wood conveyed onto a conveyor using tools powered by a motor: A body having a clamp; A first bracket mounted on the clamp of the body and having a plurality of rails disposed therein; A second bracket mounted on the first bracket so as to be movable upward and downward through a slider and joined to one side of the body to support the motor; A third bracket coupled to an upper side of the second bracket and extending to an upper portion of the wood; And Sanding apparatus for the edge processing of wood, characterized in that it comprises a roller which is mounted on the third bracket so as to move up and down via a fixing plate, and rotates by frictional force in contact with the upper surface of the wood. The sanding apparatus of claim 1, wherein the second bracket is connected to a separate driving means for raising the roller by generating a lifting force. 3. The sanding apparatus of claim 2, wherein the driving means uses an air cylinder to act as a buffer. The sanding apparatus of claim 1, wherein the fixing plate is coupled via an adjustment screw to finely vary the distance from the third bracket. 2. The sanding apparatus of claim 1, wherein the roller is positioned so that the center of the rotational axis is on the same vertical line as the center of the motor.