JPH0642803Y2 - Material holding device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material pressing device for feeding a wooden material and processing a tenon with a rotary blade.

[0002]

2. Description of the Related Art Conventionally, when a tenon is machined on the edge of a wooden material, the material A supplied on a table 1 as shown in FIG.
Is manually fed to the rotary blade 2 and is cut by the rotary blade 2 rotating clockwise.

According to such a processing method, since the material A is fed in the rotating direction of the rotary blade 2, the material A is drawn by the rotary blade 2 and there is a problem in safety.

Therefore, as shown in FIG. 6, it is possible to prevent the material A from being drawn in by rotating the rotary blade 2 counterclockwise.

However, since the material A is lifted from the table 1 by the rotary blade 2 which rotates in the counterclockwise direction when the tenon is processed, the tenon becomes thin and defective products occur.

Therefore, the pressing roller 3 for preventing the material A from rising is required.

[0007]

According to the above-mentioned structure, the bearing member of the roller is fixed at a position corresponding to the thickness of the material, so that the position of the bearing member is changed each time the thickness of the processed material changes. Therefore, it is extremely troublesome and
The operating rate of the processing machine decreases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a material pressing device in which the roller is automatically moved to the optimum position for pressurization even if the material thickness changes.

[0009]

In order to solve the above-mentioned problems, the present invention is guided in the vertical direction by a sliding table of material and a guide surface located on one side of the table before and after the sliding direction of the material. And an arm supporting a roller having elasticity through a horizontal support shaft at the tip, protruding from the end side surface of the arm and fitted between the guide surfaces, and parallel to both guide surfaces. A protruding member having a contact surface portion, a pin that rotatably supports the end of the arm on the slider, and a pin that penetrates the upper horizontal elongated hole and rotatably supports the opposite side of the upper roller. Rotating plate, a rotor supported on the lower edge of the rotating plate, a stopper provided on the slider to prevent the tip of the arm from descending in a state where the contact surface is parallel to the guide surface, and the slider. It is obtained by employing the pressing device material comprising a restoring force of the descent direction given to da.

[0010]

The slider is normally pushed down to the fixed position by the restoring force, and the stopper of the slider lowered to the fixed position is stopped by the stopper so that the contact surface is parallel to the guide surface. Is kept.

Now, when the rotor comes into contact with the front end surface of the fed material, the slider is pushed up by the elongated hole and the pin while rotating the rotating plate to raise the arm together, and then the rotor is transferred to the upper surface of the material. . At this time, since the restoring force of the slider increases as the slider is pushed up, the rotor is pressed against the upper surface of the material.

When the roller moves from the upper edge of the front end surface of the fed material to the upper surface of the material, a force is applied to the arm in the upward direction of the front end, so that the arm rotates in the upright direction. At this time, since the projecting members are both rotated in the same direction, the lower part of the contact surface portion located on the material feeding direction side is the guide surface, and the upper part of the contact surface portion located on the opposite side to the material feeding direction is the guide surface. It is strongly pressed.

Therefore, the slider is prevented from rising, and the arm tip is prevented from rising, so that the material is pressed onto the table by the rollers.

When the processed material passes under the roller or the material is pulled out, no force is exerted on the arm in the upward direction of the tip, and the tip of the arm descends due to its own weight. Therefore, the pressing of the contact surface against the guide surface is released,
The return force causes the arm to be sent down together with the slider.

When the arm is moved down together with the slider, the rotary plate returns and rotates.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the table 11
On one upper side edge, a slider 13 is vertically guided by guide surfaces 12, 12 which are located in front of and behind the sliding direction of the material A.
Is provided.

In the illustrated case, the guide surfaces 12 and 12 have two parallel rail members 15 and 15 fixed to one surface of a mounting plate 14 fixed on the table 11 so that both rail members 1 and 12 are fixed.
5 facing surfaces are used.

Reference numeral 16 denotes an arm having an elastic roller 18 made of rubber, soft synthetic resin or the like axially supported by a horizontal shaft 17 on one end surface thereof. The arm 16 has a distal end surface fitted between the guide surfaces 12. , The contact surface portion 1 parallel to both guide surfaces 12
A protruding member 20 having 9 is provided.

Further, the end of the arm 16 is inserted into the end through hole 21 of the arm 16 and screwed into the slider 13.
It is rotatably attached via 2.

Reference numeral 23 is a rotary plate which rotatably supports the opposite side of the upper roller 18 on the rail member 15 via a pin 24.
The pin 22 penetrates through a horizontal elongated hole 25 provided on the roller 18 side above the rotary plate 23.

A rotor 26 is provided at the lower edge of the rotary plate 23.
Is pivotally supported.

Reference numeral 27 is a stopper provided to prevent the tip of the arm 16 from descending while the contact surface portion 19 is parallel to the guide surface 12. In the illustrated case, the stopper 27 is attached to the slider 13 via a setscrew 28 so as to be positioned slightly rearward of the pin 22 so as to abut on the upper end surface of the end of the arm 16, but it is positioned slightly forward of the pin 22. It may be provided so as to contact the lower surface of the arm 16.

Further, the slider 13 is provided with a restoring force that pushes it downward. As shown in FIG. 2, the above-mentioned restoring force is obtained by vertically installing the rod 29 on the slider 13 and
The upper part of the coil spring 31 penetrates the cover 30, and both ends of the coil spring 31 fitted to the outside of the rod 29 are brought into contact with the inner surface of the cover 30 and the upper surface of the slider 13.

As shown in the drawing, when the bearing member 32 of the roller 18 is fixed to the tip of the arm 16 in the vertical direction by a set screw 33 inserted in a long hole (not shown) of the bearing member 32, the roller is It is possible to adjust the lowermost position of the outer circumference of 18.

With the above construction, when the rotor 26 comes into contact with the front end surface of the material A which is placed on the table 11 and manually fed, the rotary plate 23 is rotated clockwise in FIG. The arm 16 is raised while the slider 13 is raised by the engagement between the long hole 25 and the pin 22.

Then, the rotor 26 moves onto the upper surface of the material A. At this time, since the restoring force of the slider 13 increases as the slider 13 is pushed up, the rotor 26 is pressed against the upper surface of the material A.

When the roller 18 moves from the upper edge of the front end surface of the material A fed into the upper surface of the material A, the arm 1 is moved.
Since a force in the tip rising direction acts on the arm 6, the arm 16 rotates in the upright direction.

At this time, since the projecting member 20 is rotated in the same direction (from the solid line position in FIG. 4 to the chain line position), the material A
The lower part of the contact surface portion 19 located on the feed direction side of the guide surface 1
2, the contact surface portion 1 located on the opposite side of the material A feeding direction
The upper part of 9 is strongly pressed against the guide surface 12.

As a result, the slider 13 is prevented from rising, and the arm 16 is prevented from rising at the tip thereof, so that the roller 1 is prevented.
8 presses the material A onto the table 11,
Even if the tenon is processed by the rotary blade a that rotates in the counterclockwise direction, the roller 18 prevents the material A from rising.

When the processed material A is pulled out, the arm 16
Since no force is applied to the tip upward direction, the tip of the arm 16 descends due to its own weight. Therefore, the pressing of the contact surface portion 19 against the guide surface 12 is released, and the arm 13 is sent down together with the slider 13 by the restoring force, and the rotary plate 2
3 returns and rotates.

Note that when the thickness of the material A becomes large, as shown in FIG.
As shown in FIG. 3, the ascending distance of the arm 16 increases with the slider 13, and the material A is pressed by the roller 18 without hindering the change in thickness.

[0033]

As described above, according to the material pressing device according to the present invention, the arm is pushed up together with the slider according to the thickness of the material, and the arm is rotated in the upward direction when the roller is transferred to the upper surface of the material. Is used to press the abutment surface against the guide surface and press the sliding material against the table to prevent the slider from rising and the arm from rotating.

Therefore, even if the processing rotary blade rotates in the floating direction of the material, the material can be reliably pressed and processed, and the position of the roller is automatically adjusted even if the thickness of the material to be fed changes. Can be pressed down.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is a side view showing pressing of a thick material.

FIG. 4 is an enlarged vertical sectional side view showing the relationship between the guide surface and the contact surface portion.

FIG. 5 is a side view showing conventional processing.

FIG. 6 is a side view showing conventional processing.

[Explanation of symbols]

 11 Table 12 Guide Surface 13 Slider 14 Mounting Plate 15 Rail Material 16 Arm 17 Support Shaft 18 Roller 19 Contact Surface 20 Projecting Member 21 Through Hole 22 Pin 23 Rotating Plate 24 Pin 25 Long Hole 26 Rotor 27 Stopper 28 Set Screw 29 Rod 30 Cover 31 spring

Claims (1)

[Scope of utility model registration request] 1. A sliding table for a material, a slider provided on one side of the table so as to be guided in the vertical direction by guide surfaces located in front of and behind the sliding direction of the material, and elastic at a tip end thereof via a horizontal spindle. Of the roller supporting the flexible roller, a projecting member projecting from the end side surface of the arm and fitted between the guide surfaces, and having a contact surface portion parallel to the both guide surfaces, and an end of the arm on the slider. A rotatably supported pin, a rotary plate which pierces the upper horizontal elongated hole and rotatably supports the opposite side of the upper roller, and a rotor rotatably supported by the lower edge of the rotary plate. And a stopper provided on the slider to prevent the tip of the arm from descending in a state where the contact surface is parallel to the guide surface, and a descending direction restoring force applied to the slider. .