JP3022950U - Sawing machine - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: If the wiring cord connected to the circular saw loosens and winds around the movable member as the circular saw moves, there is a risk of disconnection. Moreover, when chips are scattered on the power transmission mechanism of the roller that sends the plate material when the plate material is cut, malfunction occurs. A moving handle (35) and a pointer (36) are provided at the front part of a slide support table (32) provided with a circular saw (61). Slide support
A fixture 37 for tightening the guide rod 31 by operating the clamp screw 41 is provided on 32. Wiring cord 61 to connect to circular saw 61
A connects the short pieces 71A in a chain shape and supports them by a cord holder 71 that can be bent in a curved shape. A guide groove 72 for guiding the cord holder 71 is fixed to the frame 1. Further, a driven gear 9B fixed to the lower rollers 4 to 7, a drive gear 9A fixed to the output shaft of the motor 8 and these gears 9A and 9B.
The relay gear 9C that meshes with is disposed in the box-shaped compartment 10 so that chips are not directly applied.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a saw machine such as a circular saw machine that cuts a plate material such as a concrete panel into a predetermined width, and more particularly to a mechanism for adjusting the cutting width of the plate material.

[0002]

[Prior art]

 Concrete panels (control panels) used for placing concrete are made of plywood, etc., but they must be cut to an appropriate size according to the cast material. In the past, this cutting work was manually performed at the site using a sawing tool such as a portable power circular saw, which was troublesome. In order to reduce this effort, it is conceivable to cut the concrete panel using an automatic saw. In a saw machine, for example, a plate material is sandwiched and fed by a driving roller and a driven roller, and a circular saw or the like is acted on the plate material to cut the plate material into a predetermined width. At that time, if there is a gap between the roller and the plate, the plate will not be fed reliably and will move freely, making it impossible to cut accurately. In addition, this type of concrete panel cuts into various sizes according to the size of the form, so it is necessary to move the sawing tool to the left and right to adjust the cutting width.

Conventionally, in the saw machine, in order to reliably sandwich and feed the plate material by the rollers, for example, a configuration described in Japanese Utility Model Laid-Open No. 61-162402 has been adopted. In the saw machine described in this publication, there is a lower roller on which the plate material rests and an upper roller that sandwiches the plate material together with this lower roller, but this upper roller that is driven to rotate by a motor is supported by the frame so that it can swing vertically. , It is moved up and down by an air cylinder. And the upper roller is only before and after the circular saw in the transport direction of the plate material. In addition, no consideration is given to the point of moving the circular saw group, which is a sawing tool, left and right in the saw machine.

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional saw machine, the upper roller, which is rotationally driven by the motor, is supported on the frame so that it can swing up and down, and is moved up and down by the air cylinder, which complicates the structure and is disadvantageous in downsizing. There was a problem. In addition, since the upper rollers are provided only before and after the circular saw in the plate material transport direction, there is a problem in that the plate material cannot be reliably pressed near the most important circular saw.

Further, when the sawing tool is configured to be movable to the left and right in order to cut the plate material with various cutting widths, it is easy to fix the position after the movement and the sawing width is adjusted according to the cutting width. It was necessary to make sure that the position of the drilling tool was accurately aligned. Since the sawing tool has a sharpened portion such as a rotary blade, it is desired that the operator can safely and simply position it when aligning it. In addition, when moving the sawing tool, the wiring cord connected to the sawing tool also moves with the movement of the sawing tool. If tangled, there is a risk of wire breakage, and a large amount of chips are scattered when cutting a plate material with a sawing tool, which adversely affects the power transmission mechanism that drives the plate material.

The present invention is intended to solve such a problem, and an object of the present invention is to provide a saw machine that can accurately perform positioning according to the movement of the sawing tool and the cutting width. In addition, in a saw machine that sandwiches plate materials such as concrete panels with rollers and sends them, it is possible to reliably hold down the plate material to be cut and to prevent the adverse effects of the winding of the wiring cord connected to the sawing tool and chips. The purpose is to provide a board.

[0007]

[Means for Solving the Problems]

 The saw machine according to the first aspect of the present invention includes a frame, a plurality of lower rollers supported between the left and right side portions of the frame, a motor for driving the lower rollers to rotate, and a rotary shaft parallel to the lower roller. A plurality of upper rollers sandwiching the plate material together with these lower rollers, a pair of front and rear guide rods installed between the left and right side portions of the frame, and movable along the guide rods in the axial direction of the rollers. Support slide support base, a sawing tool that is tiltably attached to the slide support base and cuts the plate material sent by the upper and lower rollers, and a fixture having a clamp screw that tightens the slide support base to the guide rod, A saw machine equipped with a power transmission mechanism for branching and transmitting the rotation of the motor to the lower roller, wherein the power transmission is to one side of the frame. A partition wall for partitioning the structure and upper and lower rollers is provided with a compartment for accommodating the power transmission mechanism, and a bendable cord holder for supporting the wiring cord of the sawing tool is provided, Since the guide groove for guiding the cord holder is provided along the moving direction of the slide support base, the slide support base provided with a sawing tool is moved to the left and right along the guide rod to move the clamp screw. Can be operated to fix the position of the slide support with the saw blade on the guide rod with the fixture. At this time, by moving the slide support base in accordance with the scale position pointed by the pointer, the sawing tool can be moved to an accurate position corresponding to the cutting width and fixed in position. Then, by supporting the wiring cord connected to the saw blade with a cord holder that can be bent in a curved shape as the saw blade is moved, the saw blade was moved in the direction in which the wiring cord was loosened. As a result, the cord retainer bends in a curved shape to hold the wiring cord, and the guide groove guides the cord retainer, so the wiring cord does not stick out to the rotating roller side. It can be prevented. Further, since the power transmission mechanism of the lower roller is arranged in the compartment partitioned by the partition wall, chips generated during cutting of the plate material do not scatter to the power transmission mechanism. It also prevents malfunctions.

A saw machine according to a second aspect of the present invention is the saw machine according to the first aspect, wherein the power transmission mechanism includes a drive gear fixed to an output shaft of the motor and a driven gear fixed to an end portion of the lower roller. Since the driven gear and the relay gear that meshes with the drive gear are used, the rotation of the motor can be reliably transmitted to the lower roller by the meshing of the gears, and the transmission loss is small.

A saw machine according to a third aspect of the present invention is the saw machine according to the second aspect, wherein the cord holder is configured by connecting a plurality of short pieces in a chain shape, and the guide groove fits the short pieces. Since it is formed in a U-shaped cross section, the cord holder that supports the wiring cord following the movement of the sawing tool bends securely to hold the wiring cord, while the cord holder is The wiring cord can be reliably positioned by securely fitting the guide groove.

A saw machine according to a fourth aspect is the saw machine according to the third aspect, wherein a pointer and a moving handle are attached to the front surface side of the slide support base, and an opening extending in the left-right direction is provided on the front surface of the frame. A groove is provided, and the pointer, the handle for movement and the operation part of the clamp screw are projected from the opening groove to the outside of the frame, and a scale is provided along the opening groove to be compared with the pointer. Therefore, by adjusting the pointer to the scale and operating the operation part of the clamp screw protruding to the outside of the frame, the sawing tool can be fixed at the position corresponding to the cutting width of the plate material.

A saw machine according to a fifth aspect of the invention is the saw machine according to the fourth aspect, wherein the roller support base is urged downward by a spring so as to be movable up and down on the side of the frame. A short pressing plate that presses only the edge of the plate material is provided at a position facing the sawing tool in the axial direction, and the roller support base supports the upper roller and between the left and right side portions of the frame. The slide support base is movably supported in the axial direction of the roller via a pair of front and rear guide rods, and the slide support base is urged downward by a spring to support the slide support base so as to be vertically movable. The saw blade is supported on this lift table, while the plate retainer that presses against the plate from above is provided at the side of the saw blade.Therefore, the plate retainer is short when cutting the plate. With upper roller With this, both sides of the plate material can be securely pressed to prevent the material from moving, and since the upper roller facing the plate material pressing portion is short, it does not hinder the position adjustment of the sawing tool.

[0012]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 8 show a first embodiment of the present invention, and this saw board is used for cutting a concrete panel P as a plate material. Reference numeral 1 denotes a frame having a width of about 1 m on the left and right sides. The frame 1 has left and right side portions 2 and 3 standing upright on both left and right sides. Between these left and right portions 2 and 3, a total of four elongated lower rollers 4, 5, 6 and 7 of the same size are supported with the horizontal direction as the rotation axis direction. The positions of these lower rollers 4, 5, 6, 7 are fixed, and they are at the same height. Further, rubber is wound on the outer peripheral surfaces of the lower rollers 4, 5, 6, 7. An electric motor 8 is provided on the rear side of the lower portion of the frame 1. The motor 8 includes a drive gear 9A fixed to its output shaft, a driven gear 9B fixed to the ends of the lower rollers 4, 5, 6, 7 and a relay gear 9C meshing with the drive gear 9A and the driven gear 9B. All the lower rollers 4, 5, 6, 7 are rotationally driven in the same direction at the same speed via the power transmission mechanism 9 consisting of. The gears 9A, 9B, 9C are arranged inside the box-shaped compartment 10 so as to project from the left side portion 3 of the frame 1 serving as a partition wall to the outside.

Further, inside the left and right side portions 2 and 3 of the frame 1, a flat plate-shaped roller support 11 is supported so as to be vertically movable over its entire length in front of and behind. For this support, a pair of L-shaped brackets 12 are fixed to the left and right side portions 2 and 3 of the frame 1 at a distance from the roller support base 11, and the bolts 13 are fixed to the L-shaped bracket 12 and the roller support base 11. Penetrates through. The lower part of the bolt 13 is fixed to the roller support base 11 by a nut 14 sandwiching the roller support base 11 from above and below, and the upper part of the bolt 13 is pulled out by screwing a double nut 15 into the tip side protruding from the L-shaped bracket 12. It is fixed. A coil spring 16 wound around the bolt 13 is interposed between the roller support base and the 11L-type bracket 12, and these coil springs 16 constantly urge the roller support bases 11 and 12 downward. are doing.

The left and right roller support bases 11 and 12 are respectively provided at the front and rear end portions thereof, and an elongated upper entrance roller 21 and an upper exit roller 22 of the same size rotate about the left and right directions as the rotation axis direction. It is pivotally supported. A pressing plate 24, which is located between the inlet upper roller 21 and the outlet upper roller 22 and presses only the edge portion of the concrete panel P from above, is vertically movably supported on the lower portion of the left roller support base 11. Has been done. For this support, support brackets 25 are installed at the front and rear of the frame 1, the pressing plate 24 is arranged on the upper surface of the supporting bracket 25, and the bolts 13A are passed through the pressing plate 24 and the supporting bracket 25 to make nuts 14A. It is fixed at. A coil spring 16A wound around the bolt 13A is interposed between the support bracket 25 and the head of the bolt 13A. The coil spring 16A constantly urges the pressing plate 24 downward. There is. When the roller support base 11 is at the lower limit position, the difference between the height of the upper ends of the lower rollers 4, 5, 6, 7 and the lower end of the upper rollers 21, 22 pivotally supported by the roller support base 11 is the concrete panel. It is designed to be slightly smaller than the thickness of P. On the other hand, the lower limit position of the left holding plate 24 is regulated by the coil spring 16A while being constantly pressed against the upper surface of the support bracket 25, and its height is slightly lower than the lower limit positions of the inlet upper roller 21 and the outlet upper roller 22. It is getting higher.

A pair of front and rear guide rods 31 are horizontally fixed between the upper portions of the left and right side portions 2 and 3 of the frame 1, and the slide support 32 is horizontally attached to the guide rods 31. Suspended so that it can move. In order to support the suspension, the slide support 32 integrally has front and rear suspension support members 33 and 33A having substantially inverted L-shapes at the front and rear, and these front and rear suspension support members 33 and 33A are respectively provided on the upper surfaces thereof. A slide bearing 34 is provided, and the slide bearing 34 moves along the guide rod 31. On the upper left side of the front suspension support member 33, a proximal end side of a moving handle 35 having a substantially ladle shape is fixed, and a proximal end of a pointer 36 is attached to the front part of the slide bearing 34 on the front side. It is fixed. A fixture 37 for tightening the guide rod 31 is provided on the right side of the upper surface of the front suspension support member 33. The fixture 37 includes an insertion hole 38 for inserting the guide rod 31 and the insertion hole 3
8 is a slit-shaped cut groove 39 that communicates with the upper surface of the fixture 37, and the cut groove 39 is used as a boundary and is screwed into the rear portion of the fixture 37 and is inserted into the front portion through a step 40. A clamp screw 41 is provided, and by rotating the operating portion 42 of the clamp screw 41, the notch groove 39 is narrowed, and the insertion hole 38 is pressed against the outer surface of the guide rod 31 to be tightened. The fixture 37 is fixed to the guide rod 31 by the above, and conversely, the fixture 37 can be moved along the guide rod 31 by rotating the operation portion 42.

Further, below the slide support base 32, a lift support base 51 is supported so as to be vertically movable. For this support, the lower heads of a total of four bolts 52 are fixed to the elevation support base 51 by nuts 53, and these bolts 52 penetrate vertically through the mounting plate portion 32A of the slide support base 32. is there. The mounting plate portion 32A is provided integrally with the suspension supporting members 33, 33A. A coil spring 55 wound around the bolt 52 is interposed between the double nut 54 fixed to the upper portion of the bolt 52 and the nut 53, and these coil springs 55 move the lifting support base 51. Always urges downward. The position where the upper double nut 54 abuts the upper surface of the slide support base 32 is the lower limit position of the lift support base 51. The elevating support base 51 has a horizontal plate material pressing portion 56, 56 which is pressed against the panel P fed by the rollers 4, 5, 6, 7, 21, 22 from above to form a left and right pair at the lower portion thereof. are doing. The plate member pressing portion 56 is in a positional relationship facing the pressing plate 24 described above. Further, when the roller support bases 11 and 12 and the lift support base 51 are at the lower limit position, the plate material pressing portion 56 and the lower ends of the upper rollers 21, 22, and 24 are located at substantially the same height. In addition, both front and rear ends of the lower surface of the plate member pressing portion 56 are smoothly curved in an arc shape for the introduction of the concrete panel P.

On the slide support base 32, a saw frame 62 of a circular saw 61 which is a sawing tool is supported so that the circular saw 61 can be rotated about the front and rear support shafts 63 and 63A. The front and rear support shafts 63, 63A are in the front and rear direction and match the diameter of the circular saw 61. An arcuate hole 64 centered on the support shaft 63 is formed in the guide plate 32B of the slide support base 32, and a rotation that rotates about the base support shaft 63 along the guide plate 32B. A fastening tool 65 consisting of a butterfly bolt and a nut inserted through the arcuate hole 64 is passed through the tip of the moving arm piece 65A, and the front side of the saw frame 62 is laterally supported on the proximal end side of the rotating arm piece 65A. It is connected via a shaft 66. Therefore, after manually loosening the fastener 65, the saw frame 62 can be rotated around the front and rear support shafts 63 and 63A to adjust the angle of the circular saw 61, and the fastener 65 can be tightened. This allows the saw frame 62 to be fixed at any angle. Further, the lateral support shaft 66 that intersects with the front support shaft 63 is provided at the rear end of the rotating arm piece 65A, and the saw frame 62 is placed above the horizontal support shaft 66. It is provided so as to be rotatable downward. Further, a substantially L-shaped turning piece 67 is pivotally attached to the rear support shaft 63A, and an arcuate hole 68 centered on the horizontal support shaft 66 is formed in the turning piece 67. The arcuate hole 68 is passed through a fastening tool 69 which is a fastening bolt provided at a position fixed to the saw frame 62. Therefore, by manually loosening the fastening tool 69, the saw frame 62 can be rotated about the horizontal support shaft 66 to adjust the vertical position of the circular saw 61. The frame 62 can be fixed at any height. Further, the saw frame 62 is provided with an electric motor 70 that rotationally drives the circular saw 61. A wiring cord 61A for connecting the electric motor 70 and the circular saw 61 is supported by a cord holder 71 which is constructed by connecting short pieces 71A in a chain shape so as to be bendable. A guide groove 72 having a U-shaped cross section for guiding the cord holder 71 is fixed inside the rear plate 1A of the frame 1 along the moving direction of the circular saw 61. The plate material pressing portions 56, 56 forming a left-right pair of the elevating support base 41 are located on the right and left sides of the circular saw 61. Therefore, with respect to the circular saw 61, the presser plate 24 has a shaft. There is a positional relationship of facing each other.

A cover 73 that covers the upper surface of the frame 1 and a front opening is detachably provided on the frame 1, and a space between the lower edge of the front surface 73 A of the cover 73 and the front plate 1 B of the frame 1 is provided. A lateral opening groove 74 is formed through which the moving handle 35, the clamp screw 41 and the pointer 36 are inserted. Further, a scale 75 in the left-right direction is provided below the opening groove 74, and the scale 36 is pointed to by the pointer 36 projecting to the outside of the frame 1 through the opening groove 74. The tip of the moving handle 35 protruding through the opening groove 74 to the outside of the frame 1 can be gripped, and the opening groove 7 can be held.
The fixing portion 36 can be used for fixing and releasing by operating the operation portion 42 of the clamp screw 41 protruding through the frame 4 and protruding to the outside of the frame 1.

Further, elongated guide members 78 and 79 projecting outward in the front-rear direction from the inlet 76 and the outlet 77 are fixed to the left side portion 2 of the frame 1, and these guide members 78 and 79 are It is continuous with the support bracket 25 fixed to the inner surface of the left side portion 2 of the frame 1.

Next, the operation of the above configuration will be described. This saw board can be used both in factories and on-site, and because of its size, it can be easily carried by light automobiles. In addition, the power source of the motors 8 and 70 is 100V single phase, and there are few restrictions on where they can be used. When cutting the concrete panel P 1, the left and right positions of the circular saw 61 are adjusted in order to cut the panel P into a predetermined width. For this adjustment, the circular saw 61 is moved to the left and right by gripping the tip of the moving handle 35 protruding outward from the opening groove 74 formed on the front surface side of the frame 1. At this time, the cutting width can be measured by the scale 75 and the pointer 36, and the cutting width can be set easily and accurately. Then, when the circular saw 61 is aligned with the cutting position, the operating portion 42 of the clamp screw 41 is rotated and the position of the circular saw 61 is fixed by the fixture 37. On the other hand, the angle of the circular saw 51 can also be adjusted if necessary. This adjustment is performed by removing the cover 73 and rotating the saw frame 62 about the front and rear support shafts 63 and 63A. By changing the angle of the circular saw 62, the panel P can be cut not only at 90 ° but also at an arbitrary angle such as 45 °, and by rotating the saw frame 62 around the horizontal support shaft 66, The height of the saw 62 can be adjusted to a height suitable for cutting the panel P. Further, when the circular saw 61 is moved to the left and right according to the cutting width of the panel P to be positioned, the wiring cord 61A which is inevitably connected to the circular saw 61 also moves integrally with the circular saw 61. The 61A is supported by a cord holder 71 that is configured to be bent in a curved shape by connecting short pieces 71A in a chain shape over substantially the entire length, so that the circular saw 61 and the electric motor 70 are arranged closest to each other. Since the cord 61A is in the most loose state, that is, the electric motor 70 is fixed to the right side 3 side of the frame 1 in this embodiment, when the circular saw 61 is positioned and fixed to the rightmost side, the wiring cord 61A is fixed. The supporting cord holder 71 is bent upward in a U-shape and is guided by the guide groove 72 which is fixed to the frame 1. Moreover, even if the circular saw 61 is moved inward to pull the wiring cord 61A. Also, the cord holder 71 follows the wiring cord 61A. Since writing fits into the guide groove 72 from the curved state linearly deformed Te, wire cord 61A is not that protrudes on the lower roller 4, 5, 6, 7 side as the movable member side. Therefore, it is possible to prevent the wiring cord 61A from being caught, and there is no fear of disconnection accident.

During the cutting work, the lower roller 4, 5, 6, 7 is rotationally driven by the motor 8 and the circular saw 61 is rotationally driven by the motor 70, and the panel is guided to the entrance 76 along the guide member 78. Insert P by hand. The panel P is sandwiched by the lower rollers 4, 5, 6, 7 and the upper rollers 21, 22 and the pressing plate 24 and sent forward, and the panel P is cut by the circular saw 61 accordingly. This panel P has its one side edge advanced along the guide members 78 and 79, is cut, and is discharged from the outlet 77. At this time, as shown in FIG. 7, by stacking the panels P on the inlet 76 side, the panels P can be inserted one after another, and work can be performed easily and efficiently. In addition, the panels P that are cut and come out of the exit 77 are automatically stacked on the exit 77 side, and can be easily carried by a forklift or the like. If the lifter is placed at the position where the panel P on the exit 77 side comes out, the efficiency will be further increased.

The panel P is inserted between the lower roller 4 and the upper entrance roller 21 at the entrance 76. Then, the panel P starts to be fed by the rotation of the lower roller 4, and the space between the rotationally driven lower rollers 4, 5, 6, 7 and the driven upper rollers 21, 22 and the holding plate 24 is passed to the outlet 77. Will be sent. The panels P that sneak under the upper rollers 21 and 22, the pressing plate 24, and the left and right plate material pressing portions 56 and 56 of the lifting support base 51 resist the urging of the springs 16, 16A and 55, and the upper roller 21. The roller supports 11 and 12, which support the shafts 22 and 22, the pressing plate 24, and the lift support 51 are slightly lifted. Therefore, the panel P is pressed from above by the upper rollers 21 and 22, the pressing plate 24, and the left and right plate material pressing portions 46 and 46. Therefore, the panel P that is sent and cut is prevented from floating and vibrating. As a result, the cutting can be performed accurately and the cut end is also clean. In addition, the burden on the circular saw 61 is reduced, and the circular saw 61 lasts longer. Moreover, the plate material pressing portions 56, 56 press the panel P on both sides of the circular saw 61, and the left edge of the circular saw 61 and the plate material pressing portion 56 also hold the edge plate on the opposite side of the panel P by the pressing plate 24. By pressing, that is, by pressing near the position where the panel P is just cut, the floating and vibration of the panel P can be reliably prevented.

Further, the power transmission mechanism 9 of the lower rollers 4, 5, 6, 7 for sending the panel P is fixed to the drive gear 9 A fixed to the output shaft of the motor 8 and the lower rollers 4, 5, 6, 7. By configuring the driven gear 9B and the relay gear 9C, the transmission loss during driving is small and the gears are arranged in the box-shaped compartment 10. Therefore, the chips generated during cutting are cut off. Since it is not sandwiched between the gears 9A, 9B, 9C, it is possible to suppress the adverse effect of chips.

As described above, in this embodiment, the slide support base 32 for fixing the circular saw 61 is moved to the left and right through the guide rod 31, and then the clamp screw 41 is operated to guide it by the fixture 37. By tightening the rod 31 and fixing the position of the circular saw 61, the panel P can be easily cut with various cutting widths. Moreover, the frame 1 is provided with the horizontal scale 75, and the slide support 32 is provided. Since the moving handle 35 is provided in the above, the circular saw 61 is cut into the panel P by moving the slide support 32 in accordance with the position of the scale 75 pointed by the pointer 36 while holding the moving handle 35. It can be moved and fixed in position to fit the width. In addition, since the circular saw 61 side is separated from the moving handle 35 and the operating portion 42 by the frame 1, the circular saw 61 is not contacted during the movement and position fixing operations, and these operations are safe. Can be done.

In addition, when the circular saw 61 is moved to the left and right according to the cutting width of the panel P to be positioned, the wiring cord 61A that moves together with the circular saw 61 is curved by connecting the short pieces 71A in a chain shape. By supporting the cord holder 71 configured to be bendable and guiding the cord holder 71 with the guide groove 72 fixed to the frame 1, the wiring cord 61A is loosened and the lower rollers 4, 5, 5 of the movable member side. Since the cord holder 71 is not wrapped around the cord holder 6, it is possible to prevent the cord holder 71 from being broken.

Further, on the left side 2 side of the frame 1, it is located between the roller supporting bases 11 and 12 that pivotally support the upper rollers 21 and 22 and the upper rollers 21 and 22, and the axial direction with respect to the circular saw 61. A short presser plate 24 that presses only the edge of the panel P at a position facing each other from above and below is supported movably up and down with coil springs 16 and 16A interposed, and a pair of front and rear guides are provided between the left and right side portions 2 and 3 of the frame 1. A slide support base 32 is supported via rods 31 and 31 so as to be movable in the axial direction of the roller, and an elevating support base 51 is vertically movable on the slide support base 32 and is urged downward by a coil spring 55 which is a spring. The circular saw 61 is supported on the lifting table 51, and the plate material pressing portion 56 for pressing the panel P from above is provided at the side of the circular saw 61, so that the concrete panel P can be efficiently cut anywhere. I can do it well. The upper rollers 21 and 22, the pressing plate 24, and the left and right plate member pressing portions 56 and 56 can press the panel P to prevent the cut panel P from floating and vibrating. Moreover, since the holding plate 24 and the plate pressing portion 56 press the left and right sides of the panel P at the position of the circular saw 61, the floating and vibration of the panel P to be cut can be reliably prevented. Moreover, the structure for the pressing is such that the pressing plate 24 is movably supported up and down on the support bracket 25 installed on both sides 2 and 3 of the frame 1 and is attached downward by the spring 16A. It is simple and easy to operate because the slide support 32 that supports the circular saw 61 supports the lift support 51 so that it can move up and down and urges it downward with the spring 55. It is also advantageous in reducing the size and weight. Further, since the holding plate 24 facing the circular saw 61 and the plate pressing portion 56 is a short one that holds only the edge of the panel P, it does not hinder the left and right position adjustment of the circular saw 61, and It has a wide adjustment range and is safe because the cover 73 covers the circular saw 61 and other moving parts. Further, the slide support base 32 can be stably moved to the left and right through the pair of front and rear guide rods 31, 31, and the slide support base 32 is supported in the front and back, so that the circular saw 61 can be stably driven. can do. Further, a drive gear 9A fixed to the output shaft of a motor 8 serving as a power transmission mechanism 9 for the lower rollers 4, 5, 6, 7 for sending the panel P, and a driven gear fixed to the lower rollers 4, 5, 6, 7. 9B and these relay gears 9C are arranged in the compartment 10 so that chips generated during cutting are not sandwiched between the gears 9A, 9B and 9C, so that adverse effects of chips can be suppressed. .

FIG. 8 shows a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. A clamp screw 41A orthogonal to the insertion hole 38 is provided, and the crank screw 41A is screwed into a fixture 37A and its base end is pressed against the guide rod 31 to tighten the guide rod 31. The fixture 37A is fixed to the guide rod 31, and when it is loosened, the fixture 37A is configured to be movable along the guide rod 31, and the knob-shaped operation portion 42A provided at the tip of the clamp screw 41A has the opening groove 42A. Since it is inserted through 74 and protrudes to the outside of the frame 1, in this example as well, the operation portion 42A can be rotated to fix the position of the circular saw 61 and release it, and the same operation and effect as the first embodiment. Have.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, the number of rollers for feeding is not limited to that in the above embodiment. Further, the plate material pressing portion beside the saw blade may be a roller. Further, the spring for urging the roller support base and the lift support base downward is not limited to the coil spring.

[0029]

[Effect of device]

 According to the invention of claim 1, a frame, a plurality of lower rollers supported between the left and right side portions of the frame, a motor for driving the lower rollers to rotate, and a rotation shaft parallel to the lower roller are provided. A plurality of upper rollers sandwiching the plate material together with these lower rollers, a pair of front and rear guide rods installed between the left and right side portions of the frame, and a support provided so as to be movable in the axial direction of the rollers along the guide rods. A slide support base, a sawing tool which is attached to the slide support base so as to be tiltable and cuts the plate material sent by the upper and lower rollers, a fixture having a clamp screw for tightening the slide support base on the guide rod, A saw machine equipped with a power transmission mechanism for branching and transmitting the rotation of a motor to the lower roller, wherein the power transmission is to one side of the frame. A partition wall for partitioning the structure and upper and lower rollers is provided with a compartment for accommodating the power transmission mechanism, and a bendable cord holder for supporting the wiring cord of the sawing tool is provided, Since the guide groove for guiding the cord holder is provided along the moving direction of the slide support base, the saw blade tool can be moved to an accurate position corresponding to the cutting width and fixed in position. , It is possible to prevent the wiring cord connected to the sawing tool from protruding and prevent the wiring cord from breaking. Furthermore, chips generated when the plate material is cut do not scatter to the power transmission mechanism, and it is possible to prevent malfunction of the power transmission mechanism.

According to the saw machine of the invention of claim 2, in the saw machine of claim 1, the power transmission mechanism includes a drive gear fixed to the output shaft of the motor and a driven gear fixed to an end portion of the lower roller. And the driven gear and the relay gear meshing with the drive gear, the rotation of the motor can be reliably transmitted to the lower roller.

According to the third aspect of the invention, the cord holder is configured by connecting a large number of short pieces in a chain shape, and the guide groove is formed in a U-shaped cross section into which the short pieces are fitted. Therefore, the cord holder can reliably position the wiring cord.

According to the invention of claim 4, a pointer and a moving handle are attached to the front surface side of the slide support base, and an opening groove extending in the left-right direction is provided on the front surface of the frame. Since the moving handle and the operating portion of the clamp screw are projected to the outside of the frame, and the scale for comparing with the pointer is provided along the opening groove, the operating portion of the moving handle and the clamp screw are Since the frame is partitioned by the front surface of the frame, it is possible to safely perform the work of cutting the plate material.

According to the invention of claim 5, on the side of the side of the frame, the roller supporting base, which is urged downward by the spring and supported so as to be movable up and down, is opposed to the sawing tool in the axial direction. A short presser plate that holds only the edge of the plate material is provided at the position to support the upper roller on the roller support, and a pair of front and rear guide rods are provided between the left and right side parts of the frame. The slide support base is movably supported in the axial direction of the roller, and an elevating support base is provided on the slide support base so as to be vertically movable by being urged downward by a spring. While supporting the tool, a plate material pressing part that presses against the plate material from above is provided by the side of the sawing tool, so the structure for pressing the plate material is simple, downsizing is possible, and the position adjustment of the sawing tool is possible. versus Therefore, the plate material to be cut can be surely pressed without any trouble.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a first embodiment of the present invention.

FIG. 3 is a sectional view showing the first embodiment of the present invention as seen from the front side.

FIG. 4 is an overall perspective view showing a first embodiment of the present invention with a cover removed.

FIG. 5 is a perspective view of an essential part showing a first embodiment of the present invention.

FIG. 6 is a front view showing a first embodiment of the present invention.

FIG. 7 is a side view showing a first embodiment of the present invention.

FIG. 8 is a cross-sectional view of the main part showing the first embodiment of the present invention.

FIG. 9 is a sectional view of a slide support base according to a first embodiment of the present invention.

FIG. 10 is a cross-sectional view of a fixture showing a second embodiment of the present invention.

[Explanation of symbols]

 1 Frame 2 Left Side (Partition Wall) 3 Right Side 4 Lower Roller 5 Lower Roller 6 Lower Roller 7 Lower Roller 8 Electric Motor (Motor) 9 Power Transmission Mechanism 9A Drive Gear 9B Driven Gear 9C Relay Gear 10 Compartment 11 Roller Support 12 Roller support stand 16 Coil spring (spring) 16A Coil spring (spring) 21 Inlet upper roller (upper roller) 22 Outlet upper roller (upper roller) 24 Presser plate 31 Guide rod 32 Slide support stand 35 Moving handle 36 Pointer 37, 37A Fixing tool 41 Clamping screw 51 Lifting support 55 Coil spring (spring) 56 Plate holding part 61 Circular saw (saw blade tool) 61A Wiring cord 71 Code holder 71A Short piece 72 Guide groove 74 Opening groove 75 Scale P Concrete panel (plate material) )

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B28D 1/04 Z

Claims (5)

[Scope of utility model registration request] 1. A frame, a plurality of lower rollers supported between left and right side portions of the frame, a motor for rotationally driving the lower roller, and a rotation shaft parallel to the lower roller, together with the lower rollers. A plurality of upper rollers that sandwich the plate material, a pair of front and rear guide rods that are installed between the left and right side portions of the frame, a support slide support base that is movable along the guide rods in the axial direction of the rollers, A sawing tool that is attached to the slide support so that it can be tilted and that cuts the plate material sent by the upper and lower rollers, a fixture that has a clamp screw that tightens the slide support to the guide rod, and the rotation of the motor to the lower side. A saw machine including a power transmission mechanism for branching transmission to rollers, wherein the power transmission mechanism and upper and lower rollers are provided on one side of the frame. A partition wall that separates the power transmission mechanism is provided with a partition wall that separates the power supply mechanism, and a bendable cord holder that supports the wiring cord of the sawing tool is provided. A saw machine, wherein guide grooves for guiding are provided along the moving direction of the slide support base. 2. The power transmission mechanism comprises a drive gear fixed to an output shaft of the motor, a driven gear fixed to an end portion of the lower roller, and a relay gear meshing with the driven gear and the drive gear. The saw machine according to claim 1, wherein: 3. The saw machine according to claim 2, wherein the cord holder is configured by connecting a large number of short pieces in a chain shape, and the guide groove is formed in a U-shaped cross section into which the short pieces are fitted. 4. A pointer and a moving handle are attached to the front surface side of the slide support, and an opening groove extending in the left-right direction is provided on the front surface of the frame, and the pointer, the moving handle and the clamp screw are provided through the opening groove. 4. The saw machine according to claim 3, further comprising a scale for projecting outside of the frame and a scale for comparing with the pointer along the opening groove. 5. An edge portion of a plate material at a position facing axially the roller support base, which is urged downward by a spring so as to be vertically movable, and the sawing tool on the side portion side of the frame. A short presser plate for holding only the above is provided, and the roller support base supports the upper roller, and the slide support base is provided between the left and right side portions of the frame via a pair of front and rear guide rods. Movably supported in the vertical direction, and the slide support base is provided with an elevating and lowering support urged downward by a spring so as to be movable up and down, and while supporting the sawing tool on the elevating base, the sawing tool is also provided. 5. The saw board according to claim 4, further comprising a plate material pressing portion that is pressed against the plate material from the side of the plate.