JPS58109263A - Profile sander for woodwork - Google Patents

Abstract

PURPOSE:To exchange a pressure pad to push a sanding belt to a work in a short time automatically by providing several pressure pads on a fixing member capable of dividing rotation in accordance with the shape of grinding. CONSTITUTION:A sanding belt 4 is supported by a guide pulley 2 and a tension pulley 3 and rotated by a drive pulley 1 for giving a polishing process to the surface of a work. In accordance with the shape of the surface of the work of a wooden product or the like, several pressure pads 5 are prepared, and fixed on a fixing member 13 capable of dividing rotation. When a pressure pad 5 is selected and divided in accordance with the shape of grinding, a slider 12 is advanced by an air actuator 14, and the pressure pad 5 is pushed to the belt 4 for giving a polishing process of a fixed shape.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a profile sander for woodworking using an endless sanding belt system, and more particularly to a profile sander for woodworking with two or more pressure pads.

Wooden materials such as furniture and fittings are shaped in advance into a predetermined shape, and then the finished surface is polished with a metal abrasion and coated with a base coat, which is then finished with a T-4 polish and a final coat. It is taken. A profile sander is normally used for sanding this wooden material.◎ To explain about the profile sander, this is a so-called belt sander, and the skeleton shown in Figure 1 is the drive pulley A1. Guide pulley B and tension pulley C! A sanding belt d is arranged in a triangular shape and hung on it, and a pressure pad is provided inside the sanding belt d between the guide pulley b and the tensile pulley aO, and this is used to push out the sanding belt from inside the sanding belt at. It is a KL7t type that applies one sanding belt to the rubbing surface of the material. The pressure pad C has a shape corresponding to the sliding WiO shape of the wooden material A, and is formed so that the sanding belt d hits the entire surface of the S+m surface with an even and dangerous degree. The shape of the sliding surface differs depending on the type of material, and even for the same material, it differs depending on the location of the sliding surface, such as the outer circumferential surface or the inner circumferential surface. I had to replace the T-tub, and it took a lot of time and noise! Therefore, this was a factor that reduced the efficiency of wooden material AO polishing operations.

The present invention has been made in view of the above-mentioned points, and the present invention has been made in view of the above-mentioned points.
t is set, and this is a IIK that is switched according to the shape of the t-* line surface, so that the pressure pad replacement operation sound type can be done very easily and in a short time. It increases work efficiency and sound as well as 1
This switching can be done completely automatically, allowing for automatic control by a converter.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments. In the figure, reference numeral 6 denotes a board, behind which a drive pulley 1 is symbolized, and furthermore, a guide pulley 2 and a tension pulley 3 are attached to the left and right of the front. That is, the above-mentioned boob constitutes an isosceles triangle, and the sanding belt 4 is suspended from this. The drive pulley 1 applies rotational force to the sanding belt 4, and is attached to the output shaft of a drive motor 7t vertically connected to the rear of the board 6. On the other hand, the tension pulley 3 is attached to the output shaft of the drive motor 7t vertically behind the board 6. A device that applies a constant tension t% i
(b), which always has a tendency to open outward; - for example, the arm 9 of the air actuator 8;
The trap is installed in the clockwise direction in the figure, so that
1 has been completed. The sanding belt 4 is a so-called bell F-shaped sandpaper TI, which is made by adhering abrasive grains to the surface of the base belt material, and on this abrasive surface, the surface of the wooden material is rubbed and polished. be.
Reference numeral 5 is a pressure pad, the front shape of which is the inverted shape of the unevenness with respect to the cross-sectional shape of the rubbing surface made of wooden material. The sanding belt 4 guides and deforms it as if it were an anvil, and the sanding belt 4
We will make sure that there is not enough livestock to fish. Next, tighten the pre! 0 code 1G explaining the 5t shift mechanism
is a guide rail attached to the board 6, and is installed horizontally in front of the bracket raised from the board 6. Nuraida U on this guide rail lO
is slidably attached, and furthermore, a mounting member 13 is provided in front of the nullider ν, and a mounting member 13 is provided in front of the nullider ν.
is installed. When the Nurider 12 is in use, a forward force is applied to the Nurider 12, and the Nurida pad 5
It presses against the inside 11 of the sanding belt 40 and moves backward in the standby state to separate it from the sanding belt. For example, an air actuator 14 l is attached to the board 6, and a shift arm is attached to its output shaft. U
The working end of this is connected to the arm receiving part 16 of the rider U, so that the air actuator 14 always rotates counterclockwise to apply the force that moves the Metsuida tzK forward. An air cylinder 17 is attached to the substrate 6, followed by a nullider uK@, and the tube is contracted to retract the nullider 12 at 0°C.

A scattering member 13 is attached to the base plate 6 and attached to the voice nullider 12 in the manner described above, and two or more pressure pads 5 are further attached to this. When this mounting member opening is rotatably attached to the Nurider 12, its posture is fixed at each constant rotation angle.The mechanism for rotating and stopping the mounting member 13 is not particularly limited. Therefore, what is shown in FIGS. 2 to 3 is an example of the rotation axis 221r of the mounting member rib placed horizontally, and the air actuator 18 is attached to the nullider 12. It is connected to the rotary shaft 22 of the member brocade with the rotation axis twR, and applies one turning force to it. Furthermore, the rotating shaft ρ rotates integrally with the attached member 13, and a disk 2D' formed with a protrusion or depression 19 is attached to the periphery I at a position corresponding to the mounting position IIK of the presser plate 5). An air cylinder 21Vr is attached to the Nurider 12 and connected to the plunger 1 recess 19 of this air cylinder 21Vr.

That is, when the plunger of the air cylinder 21 is moved back in FIG. 4, the engagement between the plunger and the depression W is disengaged, and the four plate members begin to rotate. Then, when the plunger is moved forward again, when the next hollow aligns with the plunger, the two are coupled and the disk is stopped. Figures 5 and 6 show the rotation axis 22t - vertical I just gave you an example.

This is also not particularly limited to the horizontal @ by switching the pressure pad 5. The figure shows a different method from the above-mentioned system. , and rotatably mounted 0
Then, the gear 28-tI& is attached to the rotating shaft 22,
- An air actuator is embossed on the ten-man rider, and its output shaft Kf11 wheel is attached, and this gear 24 meshes with the above-mentioned screwdriver to rotate the rotating shaft 22. Of course, Since the rotating shaft is stopped during the rubbing operation and rotates only when the pressure pad 5 is switched, the gear U also meshes with the gear portion only at this time.
The figure shows the state 1 in which the gear 24 meshes with the gear 28, that is, the pressure pad 51 is switched.From this state, when the rotary shaft 22 pipe is lowered, the gear part also descends accordingly, and both The meshing of the two is determined.

Furthermore, a locking protrusion 25 is formed on the rotation shaft 22, and an 11 engaging recess 26 is formed on the nullider 4 to engage with the locking protrusion 25. The locking protrusion and the engagement recess 26 are used to fix the rotating shaft 22 in alignment during the rubbing operation, and when the rotating shaft 22 is raised 1 to the switching state, the engagement is released. I'm making you #1.

The symbol indicates an air cylinder that raises and lowers the rotating shaft 22.

When switching the pressure pad St, first operate the air cylinder 27t to raise the rotating shaft completely.Then, the locking protrusion and the merging portion 26 are disengaged and the rotating shaft becomes free, and at the same time the gear The parts mesh with the gears and rotate. The rotating shaft 22 rotates at a predetermined 0 position and 11 KI, and then is lowered i. Then, the meshing between the gear parts is released and the rotating shaft stops rotating once, and at the same time, the engaging protrusion 25 engages with the engaging recess 26, and the rotating shaft is fixed at the position K11i.
Well, the pressure pad S can be switched.

IIIK The present invention described in detail above has the following advantages:
This pressure pad! Wooden material AK that is the workpiece
The combination can be changed as needed, and this allows the wooden material to be changed, significantly shortening the process of changing the pre-IP"S/Yabatsudo meeting, thereby dramatically improving work efficiency. The target improvement is 07t O pre-t-shirt (
It is of course possible to switch the V mode manually, and this has the advantage of making it easier to determine the IlI rate. 1. If you use a member pipe that operates in response to an electrical signal and can automatically switch, 9, you can make a side line with the switching sound combination. height and lj [1
? F) By adjusting the angle as well as the angle, the automation and efficiency of work can be further improved.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing the outline of a profile sander, Figure 2 is a partially cutaway plan view showing Embodiment 1 of the present invention, Figure 3 is a side view of the same, and Figure 4 is an example of a rotating shaft stopping mechanism. FIG. 5 is a side view showing another embodiment of the present invention. Department! The plan view shown in FIG. 6 is a side view of the same. L: Drive pulley 2 Guide pulley 3: Tension pulley 4: Sanding belt 5; Pressure pulley 6: Board 7: Drive motor 8: Air actuator 9; Slider 13: Mounting member 14: Air actuator
7) Arm 1: Arm receiving part 17: Air cylinder 1s: Etal for air actuation; Kubo W:
Circular plate 21: Air cylinder n: Rotation shaft, 23: Air actuator feed; Gear 25: Engagement protrusion
27: Air cylinder 28: Gear Diagram! Figure 4 n

Claims (1)

[Claims] A sanding belt tsat is attached to the drive pulley, guide pulley, and tension pulley, and the profile sander K is installed.
Then, the Nuraida member is attached to the inside of the rotating orbit of the sanding belt between the guide pulley and the tensile pulley so that it can freely advance and retreat, and the broken bamboo member is attached to this, and two or more pieces of pressure are applied to the dispersed member. A profile sander for woodworking with a pad attached, and the JI attachment member is rotatable and the pressure pad attached to it is stopped at a position facing the back of the sanding belt.