JPH0145401B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mechi-dispensing device,
In more detail, the top surface of the workpiece such as furniture or musical instruments,
The present invention relates to an improvement of a device that performs a square sweep while following the shape of the lower surface and the end surface facing the device.

Here, "mechi" refers to the unnecessary part formed on the end face of the workpiece. For example, when a decorative sheet is adhered to the end surface of wood, a portion of the decorative sheet protrudes above and below the end surface of the wood because the vertical dimension of the decorative sheet is usually larger than the thickness of the wood. This protruding part is removed because it is unnecessary, and such a part is generally called a "mechi".

The "X direction" is a horizontal direction that approaches and moves away from the end surface of the workpiece, and when the end surface is a plane, it is a horizontal direction that is orthogonal to the plane.

The "Y direction" is a horizontal direction perpendicular to the X direction, and the end surface of the workpiece extends in a planar or curved shape along this direction.

The "Z direction" is a direction perpendicular to the plane defined by X and Y, and is a direction that moves up and down with respect to the workpiece.

Generally, the cutter of the edge removal device removes edges from the end face of the workpiece while moving in the Y direction.

Incidentally, the end face of the workpiece may extend in the Y direction in a curved shape with a deviation (in and out) in the X direction. Also, the upper and lower surfaces have deviations (unevenness) in the Z direction.
Sometimes I have. Therefore, in order to perform the exact and complete cleaning, the device is required to have the ability to detect deviations in the X and Z directions and proceed with the work accordingly.

Conventionally, the device for performing the above-mentioned groin removal has a main shaft that has the base ends of a pair of upper and lower arms supported on a column erected on the floor, and has a cutter for the groin removal at the tip of each arm, which is integrated with the main shaft. There is a type in which the associated copying roller is supported in a loose manner. More specifically, a spring is attached to the main shaft, which causes the copying roller to elastically press against the upper and lower surfaces of the workpiece, and moves the cutter in the Z direction (in the vertical direction relative to the workpiece) by following the unevenness of the surface. ) has a Z direction copying mechanism. Furthermore, the proximal end of the copying stylus is fixed to the column between the upper and lower arms, and its tip is opposed to the end surface of the workpiece.

By the way, in the case of such a conventional edge-cutting device, since the copying stylus is fixed to the column at the base end, the main shaft and thus the cutter cannot move in the X direction (back and forth direction with respect to the workpiece). There is no. That is, it lacks the X-direction copying function in which the main shaft and stylus are integrated.

Further, since the copying roller cannot move in the Z direction in relation to the arm, it is not possible to finely adjust the amount of edge removal.

Further, the copying roller is parallel to the main shaft supporting the cutter, that is, the radial direction of the copying roller is parallel to the axial direction of the main shaft. The copying roller is placed closer to the workpiece than the main shaft. For this reason, the copying roller has to be located away from the cutter's edge removal position, and if there are irregularities on the top and bottom surfaces of the workpiece that are very close to the edge removal position, the copying roller will detect this. I can't.

The purpose of this invention is to provide an X-direction copying function in addition to a Z-direction copying function.
It is an object of the present invention to provide a combing device which also has a direction copying function.

Another object of the present invention is to provide a multiplex payout device that can finely adjust the amount of multiplex payouts.

Still another object of the present invention is to provide a grooving device that can completely detect irregularities on the upper and lower surfaces of a workpiece, regardless of their location.

That is, in the present invention, a copying unit bracket is installed so as to be swingable in the Z direction with respect to at least one dovetail slide provided on the column, and a copying unit bracket is installed so as to be movable in the X direction with respect to the copying unit bracket. A main shaft for supporting the cutter is provided at one end of the inserted slide bar, and a motor for driving the cutter is provided at the other end.A copying roller and a stylus are attached to the main shaft, and the copying roller is attached to either the top or bottom of the workpiece. The stylus is always elastically pressed against the surface and the end surface of the workpiece.

More preferably, the copying roller is mounted movably in the Z direction with respect to the main shaft, and its position in the Z direction is determined by a screw type adjustment knob provided on the main shaft.

More preferably, the radial direction of the copying roller is inclined with respect to the axial direction of the main shaft, so that the workpiece contacting side is brought closer to the edge removal cutter.

The present invention will be explained in more detail below with reference to embodiments shown in the accompanying drawings.

In FIGS. 1 and 2, the left side in the drawings is the side facing the workpiece. In this case, we will explain the case of double-sided double-sided cleaning.On the floor surface, there is a column 1 that serves as the foundation of the whole, and in front of the column 1, a guiding strip is formed extending vertically, and this guiding strip is are engaged with sliding grooves formed on the back surfaces of the upper and lower dovetail slides 2a and 2b. Therefore, the upper and lower dovetail slides 2a and 2b can move along the column 1 in the Z direction (vertical direction with respect to the workpiece).

A support shaft 3a is formed horizontally on the front surface of the upper dovetail slide 2a, and a copying unit bracket 4a is loosely fitted onto this support shaft 3a. A spring 6a is interposed between the bracket 4a and the dovetail slide 2a, and the tensile force of the spring 6a urges the bracket 4a to rotate counterclockwise in the figure about the support shaft 3a. The roller is elastically pressed against the workpiece. Of course, the spring 6a is not necessarily a tension spring, and its elastic force may be utilized as a compression spring by changing the interposed part.

The bracket 4a has a slide bar 7a extending horizontally in the X direction (back and forth direction with respect to the workpiece),
8a are loosely inserted in parallel, and these slide bars 7a, 8a are fixed to an X-moving stylus 9a at the end on the workpiece side. Furthermore, a hydraulic cylinder 11a is horizontally installed on the front surface of the bracket 4a, and its piston rod 12a is connected to a stylus 9a.

A main shaft 13a is installed integrally with the stylus 9a, and a cutter 14a for cutting edges 14a, which is suspended and supported on the underside of the main shaft 13a, is operatively connected to a pulley 16a, and rotates as the pulley 16a rotates to perform edge cutting operations. I do. Further, a copying roller 18a is attached to the lower end of a support bar 17a fixed to the workpiece side of the main shaft 13a at a predetermined inclination with respect to the main shaft. Furthermore, the main shaft 13a is provided with a screw-type adjustment knob 19a for moving the support bar 17a and copying roller 18a up and down with respect to the main shaft 13a.
is attached.

A main shaft drive motor 21a is fixedly supported at the opposite ends of the slide bars 7a and 8a.
A pulley 22a fixed to the output shaft is operatively connected to a pulley 16a on the main shaft side by a belt 23a.

The structure of the lower dovetail slide 2b is only vertically symmetrical with the structure of the upper dovetail slide 2a, so a description thereof will be omitted, and the same parts will be designated with the same reference numerals and the symbol b. Display inside.

The edge removal device of the present invention has the above-described configuration, but can be divided into two groups: an X-direction copying mechanism and a Z-direction copying mechanism.

First, the X-direction copying mechanism will be explained using the upper dovetail slide 2a side as an example. The main role of this mechanism is the main shaft 1
The stylus 9a is in fixed relationship with the stylus 3a. In other words, the X-direction following air structure consists of slide bars 7a and 8.
a, stylus 9a, fluid pressure cylinder 11a,
It is composed of a cutter 14a supported by a main shaft 13a, a copying roller 18a, a motor 21a, and ancillary parts thereof. Now stylus 9
a is always kept in pressure contact with the end surface of the workpiece by the constant pressing operation of the fluid pressure cylinder 11a. When the entire device moves in the Y direction, if the end face of the workpiece is curved (that is, if there is a deviation in the X direction)
The stylus 9a, which is in pressure contact with this, is displaced in the X direction accordingly. Since the cutter 14a is in a fixed relationship with this, the cutter 14a moves in the X direction by the same distance with this displacement to follow the curved surface. During this movement, the main shaft side pulley 16a and the motor side pulley 22
Since the relative positional relationship with a does not change, motor 21
The cutter 14a is driven by the cutter 14a without support.

Next, the Z direction copying mechanism will be explained using the upper side as an example. The main role of this mechanism is a copying roller 18a that is in a fixed relationship with the main shaft 13a. That is, the Z-direction copying mechanism includes a support shaft 3a, a copying unit bracket 4a, and a spring 6a. The copying roller 18a is always kept in pressure contact with the upper surface of the workpiece by the constant springing action of the spring 6a.
When the entire apparatus moves in the Y direction, if there are irregularities on the surface of the workpiece (that is, if there is a deviation in the Z direction), the imitation roller 18 that is in pressure contact with the surface is displaced in the Z direction accordingly. Since the cutter 14a is in a fixed relationship with this, the cutter 14a moves the same distance in the Z direction with this displacement to follow the unevenness. In other words, the Z direction copying mechanism, together with the X direction copying mechanism it supports,
move in the direction. During this movement, the main shaft side pulley 1
Since the relative positional relationship between the cutter 6a and the motor-side pulley 22a remains unchanged, the cutter 14a is driven by the motor 21 without any support.

If a workpiece located at a certain X, Y, or Z position is moved, for example, in the Y direction, a corresponding deviation in the X direction will appear on the end face of the workpiece on the apparatus side. At this time, due to the movement of the fluid pressure cylinder,
The X-direction copying mechanism operates and the entire body moves in the X-direction so as to cancel out the deviation. Since the slide bar is loosely inserted into the copying unit bracket, this movement is extremely easy. At this time, if there are irregularities on the upper and lower surfaces of the workpiece, the Z-direction copying mechanism is operated by the action of the spring, and the entire workpiece follows the irregularities and moves in the Z direction. Since the copying unit blanket is loosely fitted onto the support shaft, this movement is extremely easy. Therefore, it is possible to perform a very accurate double-blow in both the X direction and the Z direction.

Further, by operating the adjustment knob, it is possible to finely adjust the pitch of the screw to the extent that the cutter cuts the screw.

In addition, since the copying roller is inclined with respect to the main axis and its lower portion is brought closer to the cutter, it is possible to detect irregularities on the upper and lower surfaces of the workpiece even close to the edge removal position.

In the above, the case where the column is placed on the floor has been explained as an example, but it may be placed on a base that can be moved in the Y direction (left and right direction with respect to the workpiece) as appropriate.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing an embodiment of the eyelid dispensing device of the present invention, and FIG. 2 is a plan view thereof. 1... Column, 2a, 2b... Ari slide, 3
a, 3b... Support shaft, 4a, 4b... Copying unit bracket, 7a, 7b, 8a, 8b... Slide bar,
9a, 9b...X moving stylus, 11a, 11
b...Fluid pressure cylinder, 14a, 14b...Cutter, 18a, 18b...Copying roller, 19a, 19
b...adjustment knob, 21a, 21b...drive motor.

Claims (1)

[Scope of Claims] 1. A copying unit bracket 4a is installed so as to be swingable in the Z direction with respect to at least one dovetail slide 2a provided on the upright column 1, and the copying unit bracket 4a A main shaft 13a for supporting a cutter 14a for edge removal is provided at one end of the slide bars 7a and 8a which are loosely inserted into the slide bars 4a so as to be movable in the X direction, and a cutter driving motor 21a is provided at the other end. A copying roller 18a and a stylus 9a for moving in the X direction are attached to the main shaft. This device is characterized by being elastically pressed at all times. 2. The copying roller 18a is attached to the main shaft 13a so as to be movable in the Z direction, and the position of the copying roller in the Z direction is determined by a screw type adjustment knob 19a provided on the main shaft. Apparatus according to claim 1. 3 The radial direction of the copying roller 18a is the main shaft 13
Claim 1 or 2 is inclined with respect to the axial direction of a, and the workpiece contacting side is close to the edge removal cutter 14a.
The equipment described in section.