KR19980043091A - Auto Plywood Cutting Machine - Google Patents

Abstract

The present invention relates to an automatic plywood cutter.

Conventionally, in the state of fixing the circular saw rotating by the power of the motor, a person pushes the plywood to the circular saw side by hand and cuts it and always has to work with the risk of a safety accident as well as inconvenient work and There was a problem that caused inefficiency.

Therefore, the present invention is provided with a pair of supports (2) (2A) on both sides of the work piece 1 having a leg (1A) facing each other to fix the two ends of the rail between the rail (30) ( A guide portion 3 formed with 30A); A cutting portion 4 having a circular saw 41 on the rotary shaft 40A of the motor 40; The body 50 is coupled to the upper side of the motor 40 of the cut portion 4 in order to suspend the cut portion 4 on the rails 30 and 30A of the guide portion 3, and the body ( 50, a support portion 5 having a plurality of rollers 51, 51A, 51B in contact with the surface of the rails 30, 30A, which are in rolling contact with the upper, lower, left, and right sides thereof; In order to move the support part 5 in a straight reciprocation along the rails 30 and 30A of the guide part 3, a rack 60 is formed along the longitudinal direction on the inner side of one rail 30 and 30A. The screw 61 is fastened to the upper surface of the body 50 of the support part 5 so that the rotating shaft 61A protrudes into the body 50, and the rack is mounted on the rotating shaft 61A of the motor 61. A drive part 6 provided with a pinion 62 engaged with 60; A limit switch 70 having a contact protrusion 70A is provided on the case 41A covered by the circular saw 41 of the cutout 4 so that the rails 30 and 30A of the support part 5 by the drive part 6 are provided. By having the sensing unit 7 to switch the direction of the linear reciprocating movement, the safety of the work as well as the convenience and efficiency of the work can be further increased.

Description

Auto Plywood Cutting Machine

The present invention relates to an automatic plywood cutter for automatically cutting plywood by mechanical operation using power.

Conventionally, a method in which a person pushes a plywood placed on a workbench directly to the circular saw side in a state in which a circular saw rotating by a power of a motor is fixed has been mainly used. As an example of the plywood cutter in this manner, first, a work platform having a leg with an area on which the plywood can be placed is provided, and a circular saw having a sharp tooth protrudes above the work table.

In addition, the circular saw is connected to the motor installed on the bottom of the workbench is configured to rotate by the power of the motor. Accordingly, when power is supplied to the motor, the motor is driven, and the power of the motor is transmitted to the circular saw to rotate the circular saw. Then, the operator places the plywood to be cut on the workbench, determines the cutting position, and then pushes the plywood toward the circular saw rotating by the power of the motor, thereby cutting the plywood by the rotation of the circular saw. .

However, the conventional plywood cutting work is first, the sharp teeth and the circular saw that rotates at high speed by the power of the motor to be pushed to cut the plywood to the end by hand by hand, always have to work with the risk of safety accident There was a problem.

Secondly, as described above, the worker must push the plywood to the circular saw side, and thus, the work is cumbersome and inconvenient as well as the inefficiency of the work.

Third, since the plywood is supplied to the circular saw side by hand, the feed rate of the plywood is not constant, there was a problem that the cut surface is rough. Therefore, an object of the present invention is to increase the simplicity and efficiency of the operation while promoting the safety of the operation.

1 is a front view showing the overall configuration of the present invention.

2 is a perspective view of main parts of the present invention;

3 is a cross-sectional view showing the main portion of the present invention.

Figure 4 is a plan sectional view showing a drive structure of the present invention.

Figure 5 is a plan view of the main portion showing the shape of the fixing hole formed on the support of the present invention.

** description of the symbols for the main parts of the drawings **

1: worktable 1A: leg

2,2A: support 3: guide part

4 cut part 5 support part

6 driving unit 7 sensing unit

20,20A: Upper and lower frame 21,21A: Mold hole

30,30A: Rail 40,61: Motor

40A, 61A: axis of rotation 41: circular saw

41A: Case 50: Body

51, 51A, 51B: roller 52, 52A: horizontal axis

53: through hole 54,54A: protrusion

55: vertical axis 60: rack

61B: Flange 62: Pinion

63: fixing hole 64: fastening hole

65: screw 66: handle

70: limit switch 70A: contact projection

In order to achieve the object of the present invention, the present invention comprises a guide portion formed on both ends of one side of the workbench having a leg to face each other by fixing the two ends of the rod to form a rail; A cutting part provided with a circular saw on a rotating shaft of the motor; The body is coupled to the motor upper side of the cut part to install the cut part on the rail of the guide part, and several rollers which are in rolling contact with the surface of the rail on the upper, lower and one side inside the body as the shaft. An installed support; Forming a rack along the longitudinal direction on the inner side of the one rail to move the support in a straight reciprocating along the rail of the guide, screw the motor so that the rotating shaft protrudes into the body on the upper surface of the body of the support, A drive unit having a pinion engaged with the rack on a rotation shaft of the motor; There is provided an automatic plywood cutter comprising a sensing unit for changing a rail reciprocating direction of the rail of the support unit by installing a limit switch having contact protrusions on the case covered by the circular saw of the cutting unit.

In addition, by forming a fixed hole on the upper surface of the body of the support portion that matches the fastening hole of the motor to enable the movement of the position of the motor, separation of the rack and pinion of the drive unit in accordance with the position change of the motor on one side of the body It is characterized in that the handle is integrally provided so as to move the support along the rail of the guide portion by hand.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a front view showing the overall configuration of the present invention, Figure 2 is a perspective view of the main part of the present invention, Figure 3 is a cross-sectional view showing the main configuration of the present invention, Figure 4 is a cross-sectional plan view showing a drive unit structure of the present invention, Figure 5 Is a plan view of the main portion showing the shape of the fixing hole formed on the support of the present invention, as shown in the present invention is provided with a work table (1) having a leg (1A), a pair of both ends of one side of the work table (1) The support (2) (2A) is installed to face each other at intervals.

In addition, the upper side of the support (2) (2A) is divided into two upper and lower frames (20, 20A) are provided to be mutually coupled and disassembled by screw fastening, and the lower surface of the upper frame (2) Two semi-circular grooves are formed on the upper surface of the lower frame 2A, respectively, and circular mold holes 21 and 21A are formed by the combination thereof.

And between the support (2) (2A) rails (30, 30A) are formed by two rods, both ends of which are fitted into the mold hole (21) (21A), and the rails (30) (30A) The diameter is formed to a somewhat larger diameter than the mold hole (21) (21A) is configured to be fixed by the pressing force of the upper and lower frames 20, 20A of the support (2) (2A).

Along with this, a circular saw 41 having sharp teeth is installed on the rotary shaft 40A of the motor 40 to rotate the circular saw 41 by the power of the motor 40 to cut the plywood with the circular saw 41. A turnable cutout 4 is provided, which is mounted on the rails 30 and 30A of the guide 3 by means of the support 5.

The support part 5 is formed of a hollow body 50 that is open to the front and rear sides and has upper and lower sides and upper and lower surfaces, and several rollers 51 in the upper and lower sides and one side in the body 50. 51A and 51B are provided. The rollers 51 and 51A are rotatably installed on the horizontal shafts 52 and 52A provided at intervals on the upper and lower sides of the body 50, respectively, and the one side roller 51B is the body 50. Is installed rotatably on the vertical axis 55 of the upper and lower side protrusions 54, 54A of the through hole 53 formed in one side portion of the rollers, and the respective rollers 51, 51A, 51B are Both are provided in rolling contact with the surface of the rails 30 and 30A of the guide part 3. In addition, the support part 5 is configured to perform a linear movement along the rails 30 and 30A of the guide part 3 by the drive part 6.

The drive unit 6 is configured to drive the support unit 5 by receiving the power of the motor 61 through gear transmission, and for this purpose, the inside of one rail 30, 30A of the guide unit 3 is provided. The rack 60 is formed on the side surface, and the motor 61 is installed on the upper surface of the body 50 of the support part 5 such that the rotating shaft 61A protrudes into the body 50.

In addition, a pinion 62 engaged with the rack 60 is installed on the rotation shaft 61A of the motor 61, and the pinion 62 is rotated by the power of the motor 61 to engage the rack with the pinion 62. Along the 60 is configured to drive the support portion 5 in a linear reciprocating motion.

In addition, the circular saw 41 is rotated by the power of the motor 40 to the bottom of the support part 5 which performs the linear reciprocating motion along the rails 30 and 30A of the guide part 3 by the driving part 6. The motor 40 of the cutting portion 4 to be screwed is configured to be capable of linear reciprocating motion along the rails 30 and 30A together with the support 5.

At the same time, the outer portion of the circular saw 41 of the cutout portion 4 is covered with a case 41A which is opened downward for safety. At this time, one side of the case 41A has a contact protrusion as a sensing portion 7. A limit switch 70 having a 70A is installed to support linear reciprocation along the rails 30 and 30A of the guide part 3 by the operation of the contact protrusion 70A of the limit switch 70. 5) is configured to switch the direction of movement.

In addition, the motor 61 of the drive unit 6 is fastened to the screw 65 on the upper surface of the body 50 of the support 5, for this purpose, a fixing hole 63 is formed in several places on the upper surface of the body 50 In the flange portion 61B of the motor 61, a fastening hole 64 is formed to coincide with the fixing hole 63 of the body 50 to fasten the screw 65. And the fixing hole 63 of the body 50 is formed in a long hole, the handle 66 is integrally provided to one side of the body 50 to protrude to the outside. When the plywood is cut by hand without relying on mechanical operation, it loosens the fastened screw 65 to change the position of the motor 61 while the screw 65 is fastened so that the After the pinion 62 installed on the rotating shaft 61A is detached from the rack 60, the handle 66 can be grasped and the support 5 can be moved along the rails 30 and 30A of the guide part 3. It is configured to be.

In the present invention configured as described above, first, the plywood is supplied to the circular saw 41 side of the cutting portion 4, wherein the position of the plywood is located in front of the traveling direction of the circular saw 41, the circular saw 41 The contact protrusion 70A of the limit switch 70 installed as the sensing unit 7 in the case 41A of the main body is maintained upwardly pressed by the thickness of the supplied plywood.

When the device is turned on in this state, power is supplied to each of the motors 40 and 61 of the cutting unit 4 and the driving unit 6, and the driving force thereof is driven by the motors 40 and 61. It is transmitted to the circular saw 41 of the cut part 4 and the pinion 62 of the drive part 6, respectively via the rotation shaft 40A, 61A. Accordingly, the circular saw 41 of the cutting portion 4 and the pinion 62 of the driving unit 6 rotate, respectively, and the rack 60 formed on the inner surface of one side rail 30, 30A of the guide portion 3. ) And the pinion (62) to move the support (5) along the rails (30, 30A).

And while the circular saw 41 of the cutting portion 4 coupled to the bottom portion of the support portion 5 is also moved while cutting the plywood while turning the supplied plywood with a sharp tooth. Thus, the support part 5 moves along the rails 30 and 30A of the guide part 3, and moves together with the support part 5 to cut the plywood with the circular saw 41 of the cut part 4, and then cut it. Is completed, that is, when the contact projection 70A of the limit switch 70 installed in the case 41A of the circular saw 41 and pressed upward by the thickness of the plywood is past the end of the plywood, In this case, a signal thereof is transmitted to the controller to reverse the driving direction of the motor 61 of the driver 6. Accordingly, the support portion 5 and the cut portion 4 are moved back along the rails 30 and 30A of the guide portion 3 in the reverse direction of travel again, and the cut plywood is recovered and then plywood to be cut again. This is supplied continuously.

The rollers 51, 51A and 51B installed inside the body 50 of the support part 5 are in contact with the rails 30 and 30A of the guide part 3 during the linear movement of the support part 5. Will be supported. On the other hand, during manual operation by a person, loosen the screw 65 fastening the motor 61 to the upper surface of the body 50 of the support 5 so that the motor 61 can move. Then, the pinion 62 installed on the rotation shaft 61A of the motor 61 is moved to be separated from the rack 60 formed on the inner surface of one side rail 30, 30A of the guide part 3. Accordingly, the fixing hole formed in the long hole form the screw 65 in a state in which the fastening hole 64 of the motor 61 and the fixing hole 63 formed on the upper surface of the body 50 are not completely released. After moving along 63), once the position is determined, the screw 65 is tightened again to fix the motor 61 to the upper surface of the body 50 of the support 5.

In this state in which the pinion 62 is separated from the rack 60, the operator grasps the handle 66 integrally provided at one side of the body 50 of the support part 5, and then supports the support part 5 to the guide part 3. The plywood is cut while moving along the rails 30 and 30A. In addition, the circular saw 41 of the cutting part 4 coupled to the lower side of the support part 5 is in a state of being rotated by receiving the power of the motor 40.

As described above, the present invention does not delay the safety accident of the worker by manually cutting the plywood while the circular saw which is sharply rotated at high speed by the power of the motor moves at the same speed while the plywood is placed on the work table. Not only can this be prevented, but it also has the effect of improving the efficiency and productivity of the work as well as the simplicity of the work.

In addition, the circular saw is to cut the plywood while moving at a constant speed as described above has the advantage that the cut surface is smooth and clean.

Claims (2)

A pair of supports (2) and (2A) are installed on both sides of one side of the worktable (1A) having legs (1A) so as to face each other, thereby fixing the two rod ends between them to form rails (30) (30A). One guide section 3; A cutting portion 4 having a circular saw 41 on the rotary shaft 40A of the motor 40; The body 50 is coupled to the upper side of the motor 40 of the cut portion 4 in order to suspend the cut portion 4 on the rails 30 and 30A of the guide portion 3, and the body ( A support part 5 having a plurality of rollers 51, 51A, 51B which are in contact with the surface of the rails 30, 30A on the upper, lower, and one sides of the rail; In order to move the support part 5 in a straight reciprocation along the rails 30 and 30A of the guide part 3, a rack 60 is formed along the longitudinal direction on the inner side of one rail 30 and 30A. The screw 61 is fastened to the upper surface of the body 50 of the support part 5 so that the rotating shaft 61A protrudes into the body 50, and the rack is mounted on the rotating shaft 61A of the motor 61. A drive part 6 provided with a pinion 62 engaged with 60; A limit switch 70 having a contact protrusion 70A is provided on the case 41A covered by the circular saw 41 of the cutout 4 so that the rails 30 and 30A of the support part 5 by the drive part 6 are provided. Automatic plywood cutter, characterized in that consisting of a sensing unit (7) for switching the direction of the linear reciprocating movement. The method of claim 1, wherein the fixing hole 63 of the upper surface of the body 50 of the support portion 5, which coincides with the fastening hole 64 of the motor 61 to form a long hole to move the position of the motor 61. In one side of the body 50, the support portion 5 is manually guided when the rack 60 and the pinion 62 of the drive unit 6 according to the position change of the motor 61 are separated. 3) Automatic plywood cutter characterized in that it is provided with a handle (66) integrally to move along the rails (30) (30A).