JPH074883Y2 - Cross-cut saw for sawing - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a cross-cut saw for sawing.

"Prior art" Conventional cross-cut saws for sawing are intended for safety, reliability and high performance when cross-cutting plate materials, but in each process such as groove pressing operation, rotary saw lifting operation, reciprocating sliding operation etc. There is a problem that it is difficult to use because it uses different powers and it is difficult to perform a series of linked operations.

[Problems to be solved by the invention] The purpose of the present invention is to obtain a cross-cut saw for sawing, which is easy to use and can perform cross-cutting of plate material by a series of continuous operations by turning on one switch. .

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a plate material supporting surface on the upper part of a machine frame, forms a rotary saw passage groove on the supporting surface, and forms the groove directly below the groove. With parallel guides,
An elevating table is supported on a support table that can slide back and forth along the guide, the rotary saw is pivotally supported on the elevating table, and an elevator frame provided directly below the guide and the elevating table are intervened via a slider. A wire rope that is connected by an interlocking device and that bypasses the lower part of the pulley installed on the elevator frame, bypasses the upper part of the machine frame and hangs down, suspends a weight at the hanging lower end, and forms a groove on the upper surface of the plate material on the wire rope. A chain, which supports the base end of the presser and has both ends connected to the support base, is meshed with a sprocket that can be reciprocally rotated, and a reciprocating drive wheel is provided on the outer periphery of the reciprocating drive drum facing the sprocket via a friction sheet. 1 is fitted and a fan-shaped wheel is projected on the drive wheel to connect the wire rope to one end of the fan-shaped wheel, and two projections are provided on the side surface of the drum to engage with the projections. Install one passive protrusion on the side of the sprocket Constituted by connecting a reciprocating drive motor to the drum, and composed of lumber for cross cut formed by providing a forward movement stopper and backward movement stopper of the reciprocating drive wheels.

"Operation" Therefore, when one switch 26 is turned on and the reciprocating drive motor 24 is rotated to one side, the reciprocating drive drum 18 is moved to the left (from the position stopped by the stopper 25 ') shown in FIG. When the opening angle A (FIG. 8 (b)) is rotated in the direction of arrow a), the sector wheel 21 is also rotated to the left accordingly, and the wire rope 13 is resisted against the weight 14 and shown in FIG. 3 is pulled from the position shown in FIG. 3 to the position shown in FIG. Further, when the opening angle B is further rotated to the left by the opening angle B (FIG. 8 (c)), the pulley 12 rises, and accordingly, the elevator frame 9
4 to the position shown in FIG. 4, and the elevator 8 is raised by the interlocking device 11, so that the rotary saw 4 appears on the plate supporting surface 3 through the passage groove 5 and enters the groove-shaped presser 15 (FIG. 4). reference). In that state, the reciprocating drive wheel 20 comes into contact with the forward movement stopper 25 to stop the rotation to the left, but the drum 18 overcomes the frictional force of the friction sheet 19 and further rotates to the left, and one protrusion 22 pushes the passive projection 23 in the direction of arrow a from the position shown in FIG. 8 (c) to the position shown in FIG. 8 (d), so that the sprocket 17 rotates to the left, and accordingly the chain 16 rotates to the left. Therefore, the support base 7 slides from the position shown in FIG. 4 to the position shown in FIG. 5, and accordingly, the rotary saw 4 slides to the left to support the support surface 3
The upper plate material 2 is cut. After cutting, the limit switch 27 operates to rotate the electric motor 24 in the opposite direction, and the drum 18 is rotated in the direction of arrow b (FIG. 8 (e)) by the opening angle C accordingly. The elevator frame 9 descends to lower the support base 7 and the rotary saw 4 from the position shown in FIG. 5 to the position shown in FIG. 6, and when the elevator frame 9 is further rotated rightward (arrow b) by the opening angle D, the drive wheels are driven. As shown in FIG. 7, 20 is stopped by the return stopper 25 'from turning to the right, and the drum 18
When you turn the friction sheet 19 to the right and rotate it, the other protrusion
22 'pushes the passive projection 23 to the right from the position shown in FIG. 8 (f) to the position shown in FIG. 8 (a), so that the chain 16 also rotates to the right and the support base 7 and the rotary saw 4 are rotated. 7 is slid from the position shown in FIG. 7 to the original position shown in FIG. 1, while the grooved presser foot 15 is moved up and down. And at that position the limit switch 27 '
Operates to stop the electric motor 24 and finish the cutting work.

[Example] The support surface 3 of the plate material 2 is formed on the machine frame 1 provided on the floor surface 28. The support surface 3 may be a support surface formed by arranging idle rollers in parallel. The support surface 3 is formed with a passage groove 5 for sliding the rotary saw 4 in the vertical direction and the cutting direction of the plate material 2,
A guide 6 parallel to the direction of the groove 5 is provided directly below the groove 5 in the machine frame 1
A support base 7 which is fixed to the guide 6 and which can slide back and forth along the guide 6 is provided on the guide 6. On this support base 7, one end of the lift table 8 is pivotally supported by a horizontal pin 29 orthogonal to the guide 6, the rotary saw 4 is pivotally supported on the lift table 8, and a drive motor 30 for the rotary saw 4, A drive belt 31 and pulleys 32, 33 are mounted. An elevator frame 9 which is parallel to the guide 6 is provided directly below the guide 6, and both ends thereof are bent downward so that an upright guide guide.
A pulley 12 is movably supported in the inside of 34, 34, and a pulley 12 is loosely supported at one lower end. The elevator frame 9 has a slider 10 and a guide roller 1
It is provided via 0 ', 10', and the slider 10 and the lifting table 8 are connected by an interlocking device 11. The interlocking device 11 includes a bending lever 36 and a bending lever 36 which are pivotally supported on the support base 7 by pins 35.
The lower end of 36 and the slider 10 are connected to the slider 10, and the upper end thereof is provided with a support roller 38 which is in contact with the lower surface of the elevating table 8. The elevating table 8 is moved up and down as the elevator frame 9 is moved up and down. It can be moved. Then, a wire rope 13 that bypasses the lower portion of the pulley 12 is hung by bypassing the small pulley 31 at the upper end of the support column 39 provided on one side of the machine frame 1, and a weight 14 is suspended at the hanging lower end. The wire rope 13 supports the base end of the upper surface groove-shaped presser 15 of the plate member 2, and the presser 15 can be raised and lowered by raising and lowering the wire rope 13. Further, both ends of the chain 16 are connected to both ends of the support base 7, and an idle shaft 41 supported by a bearing 40 provided in the lower portion of the machine frame 1.
A free-moving sprocket 17 is provided on the lower part of the sprocket 17, and the chain 16 is engaged with the lower part of the sprocket 17. The reciprocating drive drum 18 having a side surface facing the side surface of the sprocket 17 is supported by the deceleration output shaft 42 of the reciprocating drive motor 24, and the reciprocating drive wheel 20 is provided on the outer periphery of the drum 18 via the leather friction sheet 19. The wheel is fitted by the friction force of the seat 19.
20 is formed so that it can be reciprocally rotated together with the drum 18. A fan-shaped pulley 21 is provided on the drive wheel 20 so that the base end of the wire rope 13 is guided by a guide pulley 43.
13 'is connected to one end of the outer circumference. Also the above drum
Two protrusions 22, 22 'are provided on the side surface of 18 and the protrusions 22, 2'
One passive protrusion 23 engaging with 2'is attached to the sprocket 17
Provide on the side of. The reciprocating rotation angle of the reciprocating drive wheel 20 is determined by the forward movement stopper 25 and the backward movement stopper 25 'provided on the floor surface 28.
Set by. Reference numeral 44 in the drawing denotes a bolt for contacting the stoppers 25 and 25 ', and 45 is a slide tube fitted to the guide 6 and fixed to the support base 7. Reference numeral 46 is a small sprocket for guiding the chain 16, and 26 'is a foot plate of the switch 26.

"Effect of the device" Since the present invention is configured as described above, it has not only safety and certainty in cross-cutting the plate material 2 by the cross-cut saw for sawing, but also the cross-cut operation of the plate material 2 can be performed in one step, which is convenient. A good cross-cut saw for sawing can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a cross-cut saw for lumber of the present invention,
FIG. 2 is a side view of the reciprocating drive unit, FIG. 3 is a front view of the grooved presser descending state, FIG. 4 is a front view of the rotary saw ascending state, and FIG. 5 is a front view of the state immediately after cutting the plate material. 6 is a front view of the rotary saw in the lowered state, FIG. 7 is a front view of the grooved presser raised state, and FIG.
The drawings (a), (b), (c), (d), (e), and (f) are explanatory views of the relationship between the rotation and engagement of the protrusion and the passive protrusion. DESCRIPTION OF SYMBOLS 1 ... Machine frame, 2 ... Plate material, 3 ... Support surface, 4 ... Rotating saw, 5 ... Passage groove, 6 ... Guide, 7 ... Support stand, 8 ... Elevating stand, 9 ... Elevating machine frame, 10 ... Slider, 11 ... Interlocking movement Device, 12 ... Pulley, 13 ...
Wire rope, 14 ... Weight, 15 ... Groove holder, 16 ... Chain,
17 ... Sprocket, 18 ... Reciprocating drive drum, 19 ... Friction sheet, 20 ... Reciprocating drive wheel, 21 ... Fan-shaped wheel, 22, 22 '... Protrusion,
23 ... Passive protrusion, 24 ... Reciprocating motor, 25 ... Forward stopper, 25 '... Return stopper.

Claims (1)

[Scope of utility model registration request] 1. A plate material support surface is provided on an upper part of a machine frame, a rotary saw passage groove is formed on the support surface, and a guide parallel to the groove is provided immediately below the groove, and reciprocally slides along the guide. The elevator is supported on a movable support, the rotary saw is rotatably supported on the elevator, and the elevator frame provided directly below the guide and the elevator are connected by a interlocking device via a slider, A wire rope that bypasses the lower part of the pulley provided on the elevator frame is hung down by bypassing the upper part of the machine frame, a weight is suspended at the lower end, and the wire rope supports the base end of the grooved presser on the upper surface of the plate material. A chain having both ends connected to the support is meshed with a sprocket that can be reciprocally rotated, and a reciprocating drive wheel is fitted to the outer periphery of a reciprocating drive drum facing the sprocket via a friction sheet. A fan-shaped wheel is projected on the wire rope, and the wire rope is attached to one end of the fan-shaped wheel. Continued to, and 2 to the side of the drum
A plurality of protrusions, one passive protrusion engaging with the protrusion is provided on a side surface of the sprocket, a reciprocating drive motor is connected to the drum, and a forward movement stopper and a backward movement of the reciprocating drive wheel are provided. A cross-cut saw for sawing with a stopper.