JP2507103Y2 - Woodworking machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is provided with an elevating member that can be raised and lowered with respect to the upper surface of a base, and feeds a workpiece between the upper surface of the base and the elevating member for cutting. The present invention relates to a machining board for woodworking, such as a superfinishing plane for woodworking.

(Prior Art) Generally, in a woodworking machine such as a superfinishing plane for woodworking, a lifting member is vertically mounted on a base by two guide columns, and then lifted. A structure in which an elevating screw shaft for elevating a member is provided separately from the guide column, and a means for driving the elevating screw shaft such as a motor is provided on the elevating member side has been mainly adopted. .

(Problems to be solved by the invention) However, in the above-mentioned conventional one, since the two guide columns and the lifting screw shaft and the like other than the two guide columns are provided, a structure relating to the lifting movement of the lifting member is provided. Is inevitable, and since means such as a motor for driving the lifting screw shaft is provided on the lifting member side, the means such as the motor bulges around the lifting member. This hinders the cutting work and deteriorates the cutting workability of this type of processing board. Especially, in the case where the lifting member side is equipped with a means for returning the workpiece. The above problem remarkably occurs. Further, cutting scraps, dust, and the like adhere to the lifting screw shaft, which hinders smooth operation during the lifting.

Therefore, the present invention aims to reduce the size and weight of the structure related to the raising / lowering movement of the lifting member, and to eliminate the bulging member around the lifting member to improve workability and improve the workability. It is intended to be provided.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is provided with an elevating member that can be moved up and down with respect to an upper surface of a base, and feeds a workpiece between the upper surface of the base and the elevating member. In a woodworking processing board configured to cut, the elevating member is mounted on a base through a single upright hollow pillar, and the elevating member is provided in the hollow pillar. An elevating screw means for moving up and down is arranged, and a drive motor means for rotating the elevating screw means is housed and arranged in the hollow column so as to transmit the drive in series with the elevating screw means. It is what

(Operation) According to the above configuration, the elevating member is guided and supported by the single upright hollow pillar with respect to the base, so that the structure relating to the elevating movement of the elevating member can be made smaller and lighter. By arranging the means for moving up and down the elevating member inside the hollow column, the member that bulges around the elevating member is eliminated.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.
In FIG. 1, reference numeral 1 indicates, for example, the whole of a woodworking processing board such as a superfinishing board for woodworking. An elevating member 3 which is installed to be movable up and down with respect to the upper surface of the base 2 and includes a substantially flat plate-shaped housing 3a having a predetermined thickness.
It consists of and.

In the housing 2a of the base 2, an endless transfer belt 4 for transferring a work material is appropriately installed in a substantially horizontal state through a frame 5 so as to be rotatably circulated by a drive motor (not shown). The upper surface of the belt 4 is the housing 2a
It faces the opening 6 formed in the upper table surface 2c and is positioned slightly above the table surface 2c. In addition, the upper and lower sides of the work material are fed in and out (the left and right sides in FIG. 1) on the table side of the base 2.
The first and second auxiliary tables 7A and 7B having a table surface that is the same as 2c are mounted so as to be able to tilt upward through the support shafts 8A and 8B, and further on the feed-in side of the workpiece. Side rulers 9, 9 are installed on both sides of the upper part of the base 2.

As shown in FIGS. 1 and 2, the elevating member 3 is arranged opposite to the upper portion of the table surface 2c of the base 2, and a cutting means 10 to be described later is provided at substantially the center of the housing 3a. Is formed, and the lower surface is formed as a surface plate before and after the mounting space 11. The cutting tool means 10 is composed of a plane blade 12 and a blade mouthpiece 13 and the like,
The plane blade 12 slightly protrudes from the surface plate surface so that the blade edge of the adjustment plate 14 is attached to the first mounting surface 11a of the mounting space 11 so as to form an oblique blade configuration with respect to the feeding direction of the workpiece. The blade mouthpiece 13 is removably attached to the second mounting surface 11b of the mounting space 11 with its blade tip facing the blade tip of the saw blade 12.

As shown in FIGS. 3 and 4, a cylindrical support is provided at substantially the center of one side of the elevating member 3 (rear side of the base 2).
15 is suspended and fixed, and the substantially lower end side of the support column 15 slides vertically in a sliding hole 16 of a boss portion 2d formed in the housing 2a of the base 2 via a bush member 17 (up and down). Movably) and is projected downward from the sliding hole 16.

A motor housing 18 is fitted and arranged substantially in the upper portion of the column 15. The motor housing 18 has a substantially U-shaped engaging recess 15 formed at the upper end of the column 15.
The engaging projection 18a is fitted in the a and is fixedly placed, and the drive motor 19 for forward and reverse rotation and the drive motor 19 are provided inside thereof.
The reduction gear means 20 composed of two planetary gear mechanisms interlockingly connected to the motor shaft is mounted in series. The output shaft 21 of the reduction gear means 20 projects from the motor housing 18 into the support column 15 via thrust bearings. The output shaft 21 is supported by a motor housing 18, and a long operating screw shaft 23 is suspended from the output shaft 21 via a coupling 22.

In addition, at the bottom of the boss portion 2d, three long support rods 24 are provided.
And a support cylinder 25 having a stepped hole is positioned in the space formed by each of the support rods 24 and
A flange 25a at the lower end of 25 is attached and fixed to the lower end surface of the support rod 24 by bolts.

Since the long operating shaft cylinder 26 loosely fitted to the operating screw shaft 23 is formed substantially in the upper part of the cylindrical hole, the screw portion 27 is screwed onto the operating screw shaft 23 and is formed in the outer peripheral substantially central portion. Flange 26a
Is mounted on the upper end surface of the support cylinder 25 via a cushioning member 28 such as rubber, and the outer periphery below the flange 26a is slidably fitted into the guide hole 25b of the support cylinder 25. There is. Further, a threaded portion 26b is formed substantially in the lower part of the outer periphery of the operating shaft cylinder 26, and an adjustment nut member 29 is screwed into the threaded portion 26b, and between the adjustment nut member 29 and the support cylinder 25. A compression spring 30 wound around the outer circumference of the operating shaft cylinder 26 is mounted. The actuating shaft cylinder 26 is prevented from rotating about its axis by a detent pin 31 inserted from the flange 26a thereof through the buffer member 28 to the upper end surface of the support cylinder 25. The actuating shaft cylinder 26 screwed into the actuating screw shaft 23 is always fixed so as not to rotate with the flange 26a of the supporting cylinder 25 in contact with the actuating screw shaft 23. It is configured to allow vertical movement associated with rotation. In addition, the support cylinder 25 is opposed to the support column 15 so as to be retractable in the support column 15 as the support column 15 moves up and down (moves up and down).

A relatively small cylindrical ruler rod 32 is fixed to the end of one side portion (rear side of the base 2) of the elevating member 3 in parallel with the support column 15 and is fixed to the ruler rod 32. Is inserted in the housing 2a of the base 2 so as to be vertically slidable (movable up and down), and the height of the lower surface of the lifting member 3 from the table surface 2c of the base 2 in the axial direction of the outer peripheral surface thereof. A scale 32a of dimensions is attached, and a limit switch for setting the upper limit position of the elevating member 3 installed in the housing 2a of the base 2 at approximately the center of the ruler rod 32.
An operating piece 34a corresponding to 33a is provided. The lower limit position of the elevating member 3 is regulated by contacting the lower limit of the ruler rod 32 with a limit switch 33b which is also installed in the housing 2a and sets the lower limit position of the elevating member 3. A lead wire 19a connected to the drive motor 19 and connected to an ascending / descending switch 39a, which will be described later, is arranged in the cylinder of the ruler rod 32.

Further, an operating piece 35, which can come into contact with the upper surface of the work piece, is tiltably mounted on the lower part of the elevating member 3 on the feed side of the work piece, and the operating piece 35 stops the drive motor 19. Switch 36 for is opposed to operate.

In the figure, 37 is a roller for returning the work piece, which is provided at both ends of the upper surface of the elevating member 3, and 38 is a motor housing 18 and a ruler rod 32 which are fitted to the column 15 on the upper surface of the elevating member 3. A cover member that covers the upper portion and is in contact with the upper surface of the motor housing 18, 39a is a switch for raising and lowering provided on the front surface of the base 2, 39b is a start-up of the transfer belt 4,
A stop switch 40 is a light-receiving portion for operating the remote control, which is also provided substantially in front of the base 2.

Subsequently, the operation of the present embodiment configured as described above will be described.

First, the case where the elevating member 3 is moved up and down will be described. Now, as shown in FIG. 4, with the lifting member 3 positioned at the lower end, the raising switch 39a is turned on.
Driving the drive motor 19 and decelerating the output shaft 21 from the motor shaft via the reduction gear means 20 to operate the drive screw shaft 23.
Is rotated while being engaged with the female thread portion 27 of the operating shaft cylinder 26 via the coupling 22. In this case, since the operating shaft cylinder 26 is always fixed in a non-rotatable state with the flange 26a thereof in contact with the support cylinder 25, the operating screw shaft 23
Is raised while being screwed onto the actuating shaft cylinder 26 which is in a fixed state with the base 2.

Therefore, the elevating member 3 ascends (moves up) with respect to the base 2 together with the pillar 15 slidably inserted in the base 2.
The desired distance between the table surface 2c of the base 2 and the cutting tool means 10 (the distance corresponding to the thickness of the workpiece to be processed)
Hold.

In this case, the vertical movement of the lifting member 3 with respect to the base 2 is restricted by the ruler rod 32 that moves up (moves up), and the rising height can be recognized by visually observing the scale 32a attached to the outer circumference thereof. . In addition, by stopping the operation of the raising switch 39a, the drive motor 19
Is stopped and its ascending operation is stopped.

Contrary to the above, the descent switch 39a is turned on to drive the drive motor 19 in the reverse direction from the above, and the output shaft 21 is decelerated from the motor shaft via the reduction gear means 20 to rotate in the reverse direction. Since the screw shaft 23 is rotated in the opposite direction while screwing the coupling 22 with the female screw portion 27 of the operating shaft cylinder 26, the operating screw shaft 23 is in an unrotatable stationary state. The actuating screw shaft 23 is lowered with respect to the shaft cylinder 26 while being screwed into the actuating shaft cylinder 26 which is in a fixed state with the base 2.

Therefore, the elevating member 3 is lowered (moved downward) with respect to the base 2 together with the support column 15 slidably fitted in the base 2.
Is done.

In the case of this descending, as well as the above, as the lifting member 3 is lowered (moved downward), the planar rotation with respect to the base 2 is restricted by the ruler rod 32, and the scale 32a attached to the outer periphery thereof is visually recognized. The amount of descent can be recognized by.
By stopping the operation of the lowering switch 39a, the drive motor 19 is stopped and the lowering operation is stopped.

The switch 39 for starting and stopping the transfer belt 4 is provided when the elevating member 3 is, for example, substantially at the rising end.
After operating the b to circulate and rotate the transfer belt 4 to position the workpiece to be processed on the table surface 2c of the base 2 from the first auxiliary table 7A, as described above, When the switch 39a is turned on and the elevating member 3 is sequentially lowered, as the elevating member 3 descends, the operating piece 35 comes into contact with the upper surface of the workpiece and the limit switch 36 is turned off. As a result, the drive motor 19 is stopped and the lowering of the elevating member 3 is stopped.

In this state, by further feeding the work material to the transfer belt 4 side, the work material is automatically sent by the transfer belt 4 and the diagonal blade-shaped plane blade 12 in the cutting tool means 10 of the elevating member 3 is used. Finishing plane processing is performed.

Now, in the present embodiment, the elevating member 3 is moved up and down while being guided by the single cylindrical pillar 15 mainly with respect to the base 2. Drive motor 19, reduction gear means 20, actuating screw shaft 23, support cylinder
By disposing the ascending / descending means such as 24 and the actuating barrel 26 together, the existence of obstacles on the upper side of and around the elevating member 3 can be eliminated.
It is possible to smoothly carry out the returning work of the work material using the returning rollers 37, 37 provided at both ends of the upper surface of the.

Further, in this embodiment, the compression spring 30 is elastically mounted between the adjusting nut member 29 screwed into the screw portion 26b at the substantially lower portion of the outer periphery of the operating shaft cylinder 26 and the supporting cylinder 25, and the operating shaft cylinder 26 is always mounted. Is configured to urge the lifting spring 3 toward the support cylinder 25 side, the lifting spring 3 is moved relative to the base 2 via the operation shaft cylinder 26, the operation screw shaft 23, the motor housing 18, and the support column 15.
Is elastically supported by the pressurizing member 3 to apply a necessary pressing force to the workpiece through the cutting tool 10 by the elevating member 3, and the adjusting nut member 29 causes the compression spring 30 to move.
It is possible to appropriately adjust the resilience of the sheet, and to adjust the pressing force to obtain the optimum material feeding force.

Moreover, by the buffer member 28 provided between the flange 26a of the operating shaft cylinder 26 and the upper end surface of the support cylinder 25, when the elevating member 3 descends, the contact impact between the cutting tool 10 and the workpiece is compressed. It can be absorbed together with the spring 30.

(Effect) As described above, in the present invention, the structure related to the up-and-down movement of the elevating member is miniaturized by guiding and supporting the elevating member with respect to the base by the single upright hollow pillar. In addition, the weight can be reduced.

Then, by disposing the lifting screw means and the drive motor means relating to the lifting movement of the lifting member in the hollow pillar so as to transmit the drive in series with the lifting screw means, the inside of the pillar of the limited space The drive motor means can be reasonably installed in the housing, that is, without expanding the space of the device accompanying the automation of the lifting operation around the lifting member, and around the lifting member. It is possible to eliminate the member that bulges out.

This makes it possible to eliminate obstacles around the elevating member that hinder the cutting work as much as possible, thereby significantly improving the cutting workability.

Moreover, since each of the above-mentioned means protects the inside of the column, it is possible to prevent cutting dust, dust, and the like from adhering to them, and to reliably maintain the function thereof.

This makes it possible to smooth the raising / lowering operation of the raising / lowering member in this type of woodworking processing board, simplify its handling, and improve workability.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a front view including a partially broken view of a woodworking processing board, FIG. 2 is a plan view of the same, and FIG. FIG. 4 is a rear view, FIG. 4 is an enlarged cross-sectional view of the main part, and FIG. 5 is a view taken in the direction of arrow A in FIG. 2 ... Base 3 ... Lifting member 15 ... Strut 19 ... Drive motor 20 ... Reduction gear means 23 ... Actuating screw shaft 26 ... Actuating shaft cylinder

Claims (1)

(57) [Scope of utility model registration request] 1. A working board for woodworking, comprising a lifting member movable up and down with respect to an upper surface of a base, and configured to feed a workpiece between the upper surface of the base and the lifting member for cutting. The elevating member is mounted on the base through a single upright hollow pillar, and elevating screw means for moving the elevating member up and down is disposed in the hollow pillar, and the elevating screw means A working board for woodworking, characterized in that a drive motor means for rotating is housed and arranged so as to drive-transmit in series with the elevating screw means in the hollow pillar.