KR100453622B1 - Ascending and descending device of circular saw blade for acryl-plate sawing machine - Google Patents

Abstract

A horizontal moving support installed horizontally in accordance with the forward and backward moving positions of the rotary saw blade from below the worktable; Left and right lifting supports fixedly fixed to upper and lower pillar members at the left and right ends of the workbench; Left and right lifting support means for lifting and supporting the horizontal movable support only in the vertical direction with respect to the fixed left and right lifting support; Left and right lifting operation members for operating the left and right lifting support means simultaneously with a lifting stroke of a predetermined length; A lifting lowering cylinder for controlling the position of the left and right lifting members at the same time; A slider for freely moving forward and backward in a longitudinal direction from an upper surface of the horizontal supporter; A slider moving device for moving the slider; A saw blade driving motor which is positioned below the horizontal moving support and is fixedly integrated with the slider and moves together with the blade, and a saw blade driving shaft interlocked with the saw blade driving motor and a transmission device and rotatably fixed to an upper surface of the slider; An electric acrylic plate cutting device comprising a rotary saw blade elevating device of an electric acrylic plate cutting device having a rotary saw blade fixedly fixed at one side of the saw blade drive shaft, and performing cutting of the acrylic plate with high precision. Provides a saw blade elevating device.

Description

Ascending and descending device of circular saw blade for acryl-plate sawing machine}

The present invention relates to a rotary saw blade elevating device of the electric acrylic plate cutting device, and in particular, when cutting the acrylic plate to raise the rotary saw blade to the upper end of the working plate, and when returning the rotary saw blade to the initial position after the acrylic plate cutting operation An improved saw blade elevating device for lowering the saw blade to the lower part of the working plate.

Acrylic plates are widely used in various fields due to their excellent properties in materials and processing, and cutting of sheet materials in the processing of acrylic plates requires progressively high precision and rapid processing for cutting standards and cutting surfaces.

As known to date, cutting machines for cutting acrylic plates quickly and with high precision are provided with electric acrylic plate cutting devices that cut an acrylic plate fixed on a work table while moving the electric rotary saw blade from side to side. have.

Among the various electric acrylic plate cutting apparatuses known in the related art, a device which is recently noticed includes a horizontal movable support fixed horizontally from the lower side of the working plate in the horizontal direction from left to right, and a slider freely moved from side to side in the horizontal movable support. A saw blade housing installed on one side of the slider, a saw blade housing rotatably controlled by a motor supported below one side of the slider and supported by the saw blade lifting device to be lifted up and down with respect to a cutting level of a working plate; There is a rotary saw blade lifting-type electric acrylic plate cutting device having a rotary saw blade rotatably supported on the saw blade housing.

The above features of the rotary saw blade elevating type electric acrylic plate cutting device is that the rotary saw blade is supported by a variable position so that the rotary saw blade is elevated up and down with respect to the cutting level of the working plate by the saw blade elevating device. After cutting, the saw blade elevating device is controlled to return the rotary saw blade to the lower surface of the working plate so that the cut surface and the edge of the cut acrylic plate are damaged by the contact of the rotary saw blade upon return of the rotary saw blade. It is possible to improve the processing accuracy on the cut surface and the edge of the cut acrylic plate, and to smoothly maintain the shape of the brittle cutting surface and the edge, and to improve the working plate during the return time of the saw blade. By simultaneously setting and removing the acrylic plate It was able to get the effect of shortening the ball hour.

However, the conventional rotary saw blade elevating type electric acrylic plate cutting device has the problem that the precision of the cutting operation is lowered as follows due to the configuration of the rotary saw blade elevating device.

The problem of the conventional rotary saw blade elevating type electric acrylic plate cutting device occurs in the structural aspect of the rotary saw blade elevating device.

The conventional rotary saw blade lifting device supports the saw blade housing against the slider which is controlled forward and backward along the horizontal moving support, while raising the rotary saw blade to the cutting level of the working plate when moving forward and below the cutting level of the working plate when returning. Equipped with a saw blade lifting device for lowering the rotary saw blade.

In order to elevate the rotary saw blade to the vertical stroke of a certain height based on the cutting level of the working plate as shown above, the saw blade lifting device is provided with a lifting shaft having a fixed length fixed only at the lower end in the form of a free end, and the saw blade housing has the lifting shaft. Lifting boss which is supported while lifting up and down with a certain stroke is provided through the sliding bearing.

Therefore, in the state in which the rotary saw blade is raised to cut a predetermined acrylic plate supported on the working plate, the saw blade housing supporting the rotary saw blade is also supported by the elevating boss on the upper and lower shafts of the saw blade elevating device. As a support state of the rotary saw blade at the time of cutting operation is a configuration supported on the upper end of the long lifting shaft fixed only the lower end in the form of a free end with respect to the saw blade lifting device.

As described above, when the support state of the rotary saw blade is formed on the upper end of the long lifting shaft which is fixed only at the lower end in the form of free end with respect to the saw blade elevating device, the centrifugal force is rotated at a high rotational speed. Long lifting shaft may swing during the process of cutting the acrylic plate to form the rotary saw blade, especially when the thickness of the acrylic plate to be cut material is thick, the degree of swing is severely due to the cutting stress.

Substantially, most cutting devices are provided in a structure that cuts up to about 50 mm of plate material. In this case, the lifting stroke of the rotary saw blade should be formed at least 70 mm, and thus the length of the free end type lifting shaft is Even if the length is minimized to about 50mm, it is formed to be longer than about 170mm, and the distance from the fixed end of the lifting shaft fixed to the saw blade lifting device to the rotating shaft of the rotary saw blade during cutting operation is formed at least 200mm, so it rotates at about 1500 rpm or more. Due to the centrifugal force of the rotary saw blade and the cutting stress of the acrylic plate to be cut during the cutting operation, the rotary saw blade is shaken from side to side, so that the precision of the dimension must be formed within 0.1mm to 0.2mm in the acrylic plate cutting process. There was a problem that can not be used in the cutting field.

In order to solve the problems of the conventional rotary saw blade elevating type electric acrylic plate cutting device, there have been attempts to replace the diameter of the elevating shaft with a thick one, but it is very difficult to prevent the fluctuations inherently due to the feature that the elevating shaft is formed structurally long. On the other hand, as the diameter of the elevating shaft increases, other related members such as the elevating boss and the sliding bearing also have another problem in that the manufacturing cost becomes considerably high due to the increase in the standard.

The present invention is provided to solve the problems of the conventional rotary saw blade elevating type electric acrylic plate cutting device in which the rotary saw blade housing is controlled to move up and down along the elevating shaft, the rotary saw blade is lowered to the lower surface of the working plate when returning It is designed to prevent the cutting surface of the cut acrylic plate from being damaged, and the saw blade is supported by the fixing means free from fluctuations even when cutting the rotary saw blade. It is an object of the present invention to provide a rotary saw blade elevating device of an electric acrylic plate cutting device which can be formed with high precision and can smoothly preserve the shape of the brittle cutting surface and the edge portion.

1 is an overall external perspective view of an example of an electric acrylic plate cutting device in which an embodiment of a rotary saw blade lifting device is implemented

Figure 2 is a plan view of an embodiment of the electric acrylic plate cutting device according to the present invention

Figure 3 is a front view showing the main configuration of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 4 is a left side view of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 5 is a right side view of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 6 is an enlarged front view of the main configuration of the left side of the configuration of the electric acrylic plate cutting device according to an embodiment of the present invention

Figure 7 is an enlarged front view of the main configuration of the right side of the configuration of the electric acrylic plate cutting device according to an embodiment of the present invention

Figure 8 is a plan view of the main configuration of the configuration of the electric acrylic plate cutting device according to an embodiment of the present invention

Figure 9 is an enlarged view of the installation configuration side of the slider portion of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 10 is an enlarged view of the chain connecting portion of the slider portion of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 11 is a plan view of the overall configuration of the elevating drive unit part of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 12 is a lower state diagram of the right platform side of the elevating drive unit of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 13 is an elevated state diagram of the right platform side of the elevating drive unit of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-a is a cutting ready setting during the operation of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-b is a fixed state of the acrylic plate in the operating state of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-c is a rotary saw blade rising state in the operating state of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-d is an acrylic plate cutting progress in the operating state of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-e is a complete view of cutting acrylic plate in the operating state of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-f is a rotary saw blade lowered state in the operating state of the embodiment of the electric acrylic plate cutting device according to the present invention

Figure 14-g is a rotary saw blade return progress during the operation of the embodiment of the electric acrylic plate cutting device according to the present invention

(Short description of symbols for the main parts of the drawing)

30: work bench 30a, 30b: left upper and lower support members

30c, 30d: Right upper and lower support members 30e: Lower middle support members

31: working plate 31a: rotary saw blade moving groove 32: acrylic plate rear fixing

33: fixed handle 34: the handle lock 35: push lock

36: Push cylinder 36a: Push operation rod 37: Push rod

37a: rotary saw blade guide groove 37b: crimping piece 38: acrylic plate right end

39: controller 40: acrylic plate 41: horizontal movement support

42, 43: Left and right lifting platform 42a, 42b: Left lifting boss 43a: Right lifting boss

44,45: Left and right lifting shaft 44a, 44b: Left lifting shaft fixing stand

45a, 45b: Right lift shaft support 46, 46a: Left and right lift bearings

48,48a: Stopper 49,49a, 49b: buffer cylinder

51, 52: Left and right lifting rod 53, 54: Left and right cam rod 55: Lifting drive shaft

56, 56a: Bearing metal 58: Lifting cylinder 58a: Operating rod

58b: Hinge 59: Drive rod 60: Slider 60a: Base member

60b: Chain holder 61, 62: Slider moving shaft 63: Shaft support

64: slide bearing 65: saw blade drive shaft 66: shaft support pipe

67, 68: left and right support plate 69: motor fixing plate

70: blade drive motor 71, 72: pulley 73: electric belt

74: dust saw blade cover 75: rotary saw blade

80: slider movement motor 81: electric chain row 82: bearing metal

83: slider drive shaft 84: drive sprocket 85: bearing metal

86: children's plaque 87: pivot shaft 88: chain

90: dust collector 91,92: flexible dust collector hose 93: upper dust collector pipe

The configuration of the rotary saw blade elevating device of the electric acrylic plate cutting device of the present invention for achieving the above object,

In the construction of a conventional electric acryl plate cutting device for cutting an acrylic plate fixed to the work plate by moving the rotary saw blade up and down from the work plate to the cutting level, and on returning, down to the cutting level. ,

A horizontal movable support installed horizontally in correspondence with the forward and backward moving positions of the rotary saw blade below the rectangular work bench supporting the working plate;

A fixed left and right lifting support which is fixed to upper and lower support members at left and right ends of a work bench and supports the horizontal moving support freely in the vertical direction only;

Left and right lifting support means for lifting and supporting the horizontal movable support only in the vertical direction with respect to the fixed left and right lifting support;

A pneumatic or hydraulic lifting drive cylinder installed at least one of the supporting members on one side of the work table and installed through the left and right lifting support means and the lifting operation member;

A left and right lifting operation member interposed between the left and right lifting support means and the lifting driving cylinder to operate the left and right lifting support means simultaneously with a lifting stroke of a predetermined length;

A slider for freely moving forward and backward in the longitudinal direction via a sliding bearing member with respect to the upper surface of the horizontal support;

A slider moving device for moving the slider forward and backward in the longitudinal direction;

A saw blade driving motor which is positioned below the horizontal support and is fixed together with the slider and is moved together;

A saw blade driving shaft which is connected to the saw blade driving motor by a belt transmission device and is rotatably fixed to an upper surface of the slider;

Characterized in that it comprises a rotary saw blade is fixed fixedly replaceable on one side of the saw blade drive shaft.

Hereinafter, the present invention will be described in detail by the rotary saw blade elevating device of the electric acrylic plate cutting device according to the embodiment.

1 to 13 is a configuration of an example of the electric acrylic plate cutting device is implemented an embodiment of a rotary saw blade lifting device of the present invention.

Reference numeral 30 denotes an entire workbench of a rectangular body formed of several frame member supporting members and pillar members, and reference numerals 30a and 30b denote upper and lower support members on the left side of the workbench, and reference numerals 30c and 30d designate upper and lower support members on the right side of the workbench. 30e denotes intermediate supporting members installed vertically at the lower middle of the workbench, respectively.

Reference numeral 31 denotes the whole working plate fixed to the upper surface of the work table, and 31a denotes the rotary saw blade moving groove formed on the working plate.

Reference numeral 32 is a movable rear fixation bracket for supporting the rear end of the acrylic plate 40 to be processed, reference numeral 33 is a fixing handle for fixing the rear fixing stand 32 at an arbitrary position, and reference numeral 34 designates the fixing handle 33 at the front and rear sides. It is a handlebar that can be fixed while moving in a straight line.

Reference numeral 35 is a pressing fixture that is supported at a predetermined height at each of the left and right ends of the rotary saw blade moving groove 31a and fixedly installed upward along the moving groove 31a,

Reference numeral 36 is a pneumatic pressure cylinder is fixed to the upright fixed in the middle of the pressing fixture 35 is installed, the reference 36a is a push operation rod protruding below the push cylinder (36).

Reference numeral 37 is a chanel-shaped presser bar fixed to the lower ends of the pressing operation rods 36a, and reference numeral 37a is a rotary saw blade guide groove cut along the rotary saw blade moving groove 31a at the lower surface of the presser, and reference sign 37b Is a pressing piece attached to the outer surface of the rotary saw blade guide groove 37a at the bottom surface of the presser 37.

The pressing table 37 having the above-described configuration is cut and lowered to a certain height by the operation control of the pressing cylinders 36, and the cutting process of the acrylic plate 40 placed at the processing position on the upper surface of the working plate 31 is performed. While pressing the site at a certain pressure, it also acts as a dust induction pipe that guides dust generated during processing to the upper dust collecting tube 93 side.

Reference numeral 38 is an acrylic plate right end holder fixed to the front right side of the working plate 31,

Numeral 39 denotes a controller having control circuits and operation control switches for operatively controlling the power supply of the cutting device and the power supply and the pneumatic cylinders of all the electric operation members.

Reference numeral 41 is a horizontal movable support of a quadrangular frame member installed in the left and right lengthwise direction below the rectangular work bench 30 to guide the forward and backward movement of the rotary saw blade 75.

Left and right lifting tables 42 and 43 are fixedly assembled at the left and right ends of the horizontal movable support 41, and the left lifting table 42 is left and down lifting left and right lifting bosses 42a and 42b separated into two vertically. The bearing 46 is fixedly installed, and the right lifting platform 43 mounts the right lifting bearing 46a with the right lifting boss 43a between two sheets of board.

The left and right lifting bearings 46 and 46a are types of sliding journal bearings or ball bushing bearings.

In the middle of the left side of the work table 30, the left elevating shaft fixing members 44a and 44b are fixed to the upper and lower end supporting members 30a and 30b, respectively, and the left elevating shaft 44 is fixed in the vertical direction.

In the middle of the right side of the work table 30, the right lifting shaft fixing bars 45a and 45b are fixed to the upper and lower supporting members 30c and 30d, respectively, so that the right lifting shaft 45 is fixed in the vertical direction.

On the left elevating shaft 44, the left elevating bearing 46, which fixes the left elevating platform 42 with the left elevating bosses 42a and 42b, is freely installed up and down.

The right elevating shaft 45 is provided with the right elevating bearing 46a mounted on the right elevating platform 43 by the right elevating boss 43a.

At the lower ends of the left and right lifting shafts 44 and 45, the left and right springs 47 and 47a having a constant elasticity supporting the lower ends of the left and right lifting platforms 42 and 43 are provided by the left and right stoppers 48 and 48a. The lower end portions of each of the left and right lifting platforms 42 and 43 are respectively elastically supported by the left and right lower support members 30b and 30d by the buffer cylinders 49, 49a and 49c, respectively.

The left and right springs 47, 47a and the buffer cylinders 49, 49a, 49c of the elasticity that support the lower ends of the left and right lifting platforms 42, 43 of the above-described configuration, the left and right lifting tables 42 ( 43) It is a shock absorber that is designed to cushion the lowering force when descending and to easily raise with low driving force when raising.

As described above, the left and right lifting tables 42 and 43 which freely mount the horizontal moving support 41 to the left and right lifting shafts 44 and 45 are left and right lifting rods 51 and 52 and left and right lifting members which are lifting members. Cam rods 53 and 54 and the lifting drive shaft 55 are connected (see Figs. 11-13).

Upper ends of the left and right lifting rods 51 and 52 are freely fixed to the inner lower ends of the left and right lifting platforms 42 and 43, and lower ends of the left and right lifting rods 51 and 52 are respectively left and right cam rods. Is freely connected to the outer end of the 53 and 54,

The fixed ends of the left and right cam rods 53 and 54 are of the lifting drive shaft 55 rotatably installed with the bearing metals 56 and 56a across the left and right lower support members 30c and 30d of the worktable 30. It is fixedly laid on one side, respectively.

The angles at which the left and right cam rods 53 and 54 are fixedly arranged on the elevating drive shaft 55 are about 30 degrees downward from the horizontal when descending, and about 30 degrees upward from the horizontal when rising. The configuration is controlled.

The elevating drive shaft 55 on which the fixed ends of the left and right cam rods 53 and 54 are fixedly arranged is connected to the elevating driving cylinder 58 and the elevating driving rod 59 which are the elevating driving members.

The lifting drive cylinder 58 is a bidirectional pneumatic cylinder, the rear end of which is freely fixed to the lower intermediate supporting member 30e by a hinge 58b, and the operating rod 58a of the front end of the lifting drive shaft 55. The lifting driving rod 59 fixedly arranged on one side is freely connected to the flow.

Left and right lifting rods 51 and 52 and left and right cam rods 53 and 54 and lifting driving shafts 55 and lifting holes, which are lifting members, connected to the left and right lifting tables 42 and 43, respectively. According to the configuration of the copper cylinder 58 and the lifting drive rod 59, the left and right lifting platform 42 is controlled by the pneumatic circuit of the lifting drive cylinder 58 to protrude and retract the operating rod 58a in a predetermined stroke. 43 are lifted and lowered by a predetermined height on the left and right lifting shafts 44 and 45.

The lifting position control states of the left and right lifting platforms 42 and 43 will be described based on the control state of the right lifting platform 43 shown in Figs.

As for the lowering position control of the right platform 43, as shown in FIG. 12, the pneumatic circuit of the elevation drive cylinder 58 is controlled by the inlet stroke, and in the state which the operation rod 58a is drawn in, it flows to the end of the operation rod 58a. The freely connected lifting drive rod 59 is fixedly laid out at an angle from the bottom to the left with respect to the lifting drive shaft 55 at a vertical center line, and the right cam rod 54 is perpendicular to the lifting drive shaft 55. It is fixedly laid apart from the lower side to the right by a predetermined angle, and the right lifting rod 52 flows with the lower end of the right platform 43 while the upper end is freely connected to the end of the right cam rod 54. It is connected freely and is set so that the right platform 43 can be supported in the down state by the right platform 45.

Control operation to the lift position in the lower position control state of the right lift platform 45 as described above is to control the pneumatic circuit of the lift drive cylinder 58 to protrude stroke as shown in Figure 13, protruding the operation rod 58a, The operating rod 58a rotates the end of the elevating driving rod 59 by pushing a circular arc trajectory from the lower side to the right side with respect to the vertical center line of the elevating driving shaft to rotate the upper end of the elevating driving rod 59. The lifting drive shaft 55 also rotates the right cam rods 54 in an upward position while rotating at an angle counterclockwise.

When the right cam rod 54 rotates to the upward position at a predetermined angle, the right lifting rod 52 which is freely connected to the end of the right cam rod 54 is pushed upwards by a predetermined distance, and the upper side of the right lifting rod 52 is rotated. The right lifting platform 43 which is freely connected to the stage is raised upward by a predetermined distance to stop the control by the rising position control.

In the rising position control state of the right lifting platform 43 as described above, the lowering position control operation is performed by controlling the pneumatic circuit of the elevating driving cylinder 58 by the inlet stroke as shown in FIG. The rod 58a pulls the elevating drive rod 59 to the cylinder side with a certain arc trajectory, so that the elevating drive shaft 55 and the right cam rod 54 and the right elevating rod ( 52 is operated to control the lowering position to position the right platform 43 in the lowered state on the right lifting shaft 45.

Lifting position control operation of the right lifting platform 43 as described above, while the operating direction of the lifting drive rod 59, the left cam rod 53 and the left lifting rod 51 in the left platform 42 is formed in a symmetrical direction. At the same time as the right platform 43 is made.

Two rows of slider shafts 61 and 62 are fixedly installed on the upper surface of the horizontal supporter 41 by several shaft supports 63 in the longitudinal direction.

The two-row slider shafts 61 and 62 each have a plate-shaped slider having two base members 60a on the bottom surface of which two base members 60a freely move forward and backward in the longitudinal direction via sliding bearings 64, respectively. 60 is installed.

The saw blade drive shaft 65 is rotatably fixed to the upper surface of the slider 60 by the shaft support tube 66 in a direction orthogonal to the longitudinal direction of the horizontal supporter 41, and horizontally on both side ends of the slider 60. Left and right support plates 67 and 68 extending downwards so as not to interfere with both sides of the moving support 41 are fixed, and the lower ends of the horizontal support supports 41 are fixed to the lower ends of the left and right support plates 67 and 68. The motor fixing plate 69 is fixedly installed in an uninterrupted position.

A saw blade driving motor 70 is fixedly installed in the lower end surface of the motor fixing plate 69 in a longitudinal direction, and pulleys 71 and 72 are fixed to the driving shaft and saw blade driving shaft 65 of the saw blade driving motor 70, respectively. It is installed is interlocked with the electric belt (73).

The other side of the saw blade drive shaft 65 is provided with a rotary saw blade 75 which is fixedly fixed to the saw blade drive shaft 65 while being wrapped downward with a saw blade cover 74 for dust collection.

The rotary saw blade 75 is fixed to a position that does not interfere with the inner end of the moving groove 31a while the cutting blade is moved left and right along the moving groove 31a of the working plate 31 during the cutting process.

The slider 60 having the above-described configuration includes a slider moving motor 80 fixed to the outer plate of the right platform 43, and a slider moving device interlocked with the drive shaft of the slider moving motor 80 and the electric chain train 81. In this way, two rows of slider moving shafts 61 and 62 are guided in the longitudinal direction from the upper end surface of the horizontal moving support 41 to be moved left and right.

The slider moving device is a slider drive shaft 83 which is rotatably supported between the front and rear ends by two bearing metals 82 on the upper right side surface of the horizontal moving support 41 and fixedly arranged with the driving sprocket 84 in the middle. )and,

A rotation shaft 87 which is rotatably supported between the front and rear ends by two bearing metals 85 on the upper left surface of the horizontal support support 41, and the idle sprocket 86 is fixedly arranged;

Infinite orbit between the drive sprocket 84 and the idle sprocket 86 so that both ends are fixed to both ends of the chain holder 60b protruded and fixed to the center of the lower surface of the slider 60 It consists of an orbital chain 88.

According to the configuration of the slider moving device as described above, when the rotation direction and the rotation speed of the slider moving motor 80 are driven by the controller 39 at an arbitrary control value,

The drive sprocket 84 is rotated while the drive shaft 83 linked with the drive shaft of the slider moving motor 80 and the electric chain train 81 rotates, and the left idle is caused by the rotation of the drive sprocket 84. By the infinite rotation of the chain 88, which is spoken in an orbital manner between the sprockets 86, it is possible to control the horizontal movement position of the slider 60 to any position on the upper surface of the horizontal support support 41. .

Therefore, the rotational direction and the rotational speed of the slider moving motor 80 are automatically controlled by a predetermined control value input to the control circuit of the controller 39, or by manual control by a manual control switch,

With the slider 60 supported on the upper surface of the horizontal support stand 41, the rotary saw blade 75 starts at the left side of the work table 30 to the initial position where the cutting process starts, and also the initial left side of the work table 30. The rotary saw blade 75 starting the cutting process from the position to the cutting completion position where the cutting process is completed, while holding the rotary saw blade 75 firmly, it is possible to control the horizontal movement.

Reference numeral 90 denotes a dust collecting device, and numerals 91 and 92 denote flexible dust collecting hoses.

One side dust collecting hose 91 is connected to the dust collector 90 from one side of the dust collecting saw blade cover 74 surrounding the lower side of the rotary saw blade 75, the other side dust collecting hose 92 is the pressing rod 37 ) Is connected to the dust collecting device 90 from the upper dust collecting pipe 93 which is in close contact with the right end when descending.

In the above configuration, the two push cylinders 35 and the lift drive cylinders 58 are respectively connected to an air compressor (not shown) and a pneumatic circuit installed on the outside of the work bench 30, and at the same time the It is connected to the pneumatic control switches and the control circuit.

In addition, the saw blade driving motor 70 and the slider moving motor 80 are electrically connected to the motor control switches of the controller 39 and the control circuits embedded therein, respectively.

The electric acrylic plate cutting device of an example in which the embodiment of the above-described rotary saw blade elevating device is implemented is sequentially operated and controlled in the following process in order to cut the acrylic plate to be cut to an arbitrary standard.

First step; Cutting preparation setting process of the cutting device-by operating the pneumatic control switch and the electric control switch in the controller 39, the two pressing cylinders 36 are controlled to be raised to raise the pressing stand 37, the horizontal movable support 41 ) Is lowered by the above-described lowering position control, the slider 60 controls the slider moving device to move to the initial position on the left side of the work bench 30, and the saw blade driving shaft fixed to the upper surface of the slider 60 ( 65, a rotary saw blade 75 of a size suitable for a predetermined cutting material is mounted (see Fig. 14-a).

Second Step: Acrylic Plate Fixing Process- An acrylic plate 40, which is a cutting material for cutting, is placed on the upper surface of the work plate 1, while the right end of the acrylic plate 40 is in close contact with the right end fixing plate 38. After fixing the fixing handle 33 to the width to be cut, the acrylic rear fixing stand 32 is moved in close contact with the rear end of the acrylic plate 40, and then the fixing handle 33 is tightened to fix the two push cylinders ( 36) by lowering the stroke to lower the presser 37 to fix the acrylic plate 40 to the work plate 31 (see Fig. 14-b).

Third step; Swivel blade raising control process- By controlling the lifting position control operation of the horizontal moving support 41 to a predetermined height by the above-mentioned lifting position control operation of the horizontal moving support 41, a part of the cutting blade of the rotary saw blade 75 is arc-shaped. Control to protrude to the left side of the rotary saw blade moving groove 31a of the working plate 31 (see Fig. 14-c).

Fourth step; Acrylic plate cutting process- The rotary saw blade 75 is set in advance in the control circuit of the controller 39 or by the rotational speed of the rotary saw blade per minute (rpm) and the moving speed of the slider 40, which are set by the operator according to the cutting material. ) Is cut from the left side to the right side, while cutting the acrylic plate 40 fixed to the upper surface of the working plate 31 with the pressing bar 37 (see Figs. 14-d and 14-e).

In the acrylic plate cutting process, the dust collecting device 90 is operated to operate the dust collecting device 90, and dust generated below the rotary saw blade 75 is connected to the dust collecting saw blade cover 74 which surrounds the dust collecting device. By the one side dust collecting hose 91, the dust generated into the inside of the presser 37 is suctioned from the other dust collecting hoses 92 connected to the upper dust collecting tube 93 side to the dust collecting device 90 side.

A fifth step; Rotary saw blade lowering control process-When the cutting process is completed by the acrylic plate cutting process of the fourth step, the rotary saw blade 75 is located on the right side of the horizontal movable support 41 (see Fig. 14-e), By controlling the lowering position control operation of the horizontal movable supporter 41, the horizontal movable supporter 41 is controlled to be lowered to a predetermined height, but the arc-shaped protruding blade of the rotary saw blade 75 has the rotary saw blade moving groove of the working plate 31. It descends below (31a), and it controls to descend to the position where the rotary saw blade 75 does not interfere at all with the cut surface of the cut acrylic board 40 (refer FIG. 14-f).

Sixth step; Initial position return process of the rotary saw blade-In the state in which the rotary saw blade 75 is lowered by lowering the horizontal movable support 41 by the rotary saw blade lowering control step of the fifth step, the slider moving device is controlled to move horizontally. The slider 60 on the right side of the support 41 is moved to return to the initial position on the left side of the work table 30 (see Fig. 14-G).

One embodiment of the present invention to which the operation of the cutting process of the predetermined acrylic plate by controlling the operation as described above one embodiment of the rotary saw blade lifting device is applied The operating characteristics of the electric acrylic plate cutting device, the acrylic plate proceeds to the fourth step described above After performing the cutting process, by the above-described rotary saw blade lowering control step of the fifth step, by controlling the horizontal moving support 41 a predetermined distance lowered position, only moving in the horizontal direction on the top surface of the horizontal moving support 41 Freely supported rotary saw blade 75 is also in the lower control box.

According to this operating feature, the arc-shaped protruding blade portion of the rotary saw blade 75 protruding upward of the rotary saw blade moving groove 31a of the working plate 31 at the time of cutting is completed on the working plate 31 after completion of the cutting process. Descends below the rotary saw blade moving groove (31a),

In the process of returning the rotary saw blade 75 to the initial position by the return movement control of the slider 60 as in the sixth step described above, the cutting surface of the acrylic plate 40 in which the cutting blade portion of the rotary saw blade 75 is cut is completely removed. It does not interfere, and it prevents the damage of the cutting edge and the edge part of the highly brittle acrylic plate 40, and maintains the shape smoothly, and improves the processing precision,

During the return time of the rotary saw blade 75, the work plate 31 controls the two push cylinders 36 to raise the press bar 37 to lift the cut acrylic plate 40 to the reworking position. By fixing the setting, cutting time can be shortened.

One embodiment of the present invention as described above is an operation feature and effect of the embodiment of the rotary saw blade lifting device is applied is also derived from the configuration of the conventional rotary saw blade elevating electric acrylic plate cutting device described above. In the configuration of the present invention, there is a key feature to solve the problem of the rotary saw blade lifting device implemented in the conventional acrylic plate cutting device.

As described above, the configuration of the rotary saw blade elevating device implemented in the conventional acrylic plate cutting device is to return to the state of lowering a predetermined distance below the cutting level of the working plate when returning the rotary saw blade cut the acrylic plate to the initial position It is characterized by the position of the rotary saw blade variable configuration, to prevent the cutting blade portion of the rotary saw blade from damaging the processed cutting surface and the edge portion of the acrylic plate is cut, and to maintain the shape smoothly to increase the processing precision, cutting process The desired effect to ensure the rapidity of the structure was obtained.

However, in the variable position configuration of the conventional rotary saw blade lifting device which leads to the above-mentioned effect, a free end lifting shaft of a predetermined length is fixedly installed on the side end of the slider which is moved left and right on a horizontal moving support fixed to the lower side of the working plate, The rotary saw blade is fixed to the saw blade housing which is freely supported on the lifting shaft, and when the cutting blade of the rotary saw blade is raised to the cutting level of the working plate for cutting of the acrylic plate, the rotary saw blade is free to the slider. It is supported on the top of a long lifting shaft, which is fixed only in the lower end in the form.

Therefore, if the acrylic plate cutting process is performed while moving the slider from the top surface to the right side of the horizontal moving support while rotating the rotary blade, the long lifting shaft which is the support of the rotary saw blade by the centrifugal force generated from the rotating saw blade rotating at high rotational speed When the acrylic plate, which is the material to be cut, is thick, the cutting stress is increased and the shaking degree is severely formed. Therefore, the dimensional accuracy of the acrylic plate cutting process should be about 0.1 mm to 0.2 mm. There was a problem that can not be used in the cutting field.

Compared with the configuration of the conventional rotary saw blade elevating electric acrylic plate cutting device having the above problems, the rotary saw blade elevating device of the electric acrylic plate cutting device of the present invention,

The support structure of the rotary saw blade is integrally formed with the slider, such as a configuration in which the saw blade drive shaft 65 is integrally built and laid in the horizontal shaft support pipe 66 directly fixed to the upper end surface of the slider 60 as in one embodiment. Forming,

The lifting position variable configuration of the rotary saw blade, the left and right lifting shafts 44, 45 (45), the upper and lower ends of which is fixed to the left and right ends of the worktable 30, which supports the slider 60 as in one embodiment. The key feature is that it is equipped with a free lifting structure.

Therefore, in the process of cutting the acrylic plate while moving the slider from the top surface to the right side while rotating the rotary saw blade, the centrifugal force of the rotating saw blade rotating at high rotational speed and the high cutting stress at the time of cutting the thick acrylic plate Even if this occurs, the rotary saw blade drive shaft is integrally formed with the slider, and the slider is supported by a rigid fixed support structure which is moved only in the up and down direction and does not shake in the lateral direction, so that the slider is fixed to the lifting shafts whose upper and lower ends are fixed to the work table. It is possible to form the dimensional accuracy of acrylic plate cutting process with high accuracy of 0.1mm or less by almost completely preventing the swinging of the saw blade during processing.

In the implementation of the present invention as described above, the configuration of the above-described embodiment is presented as a preferred embodiment for carrying out the present invention, but not for limiting the present invention, each component is a different embodiment configuration and specification having the same effect You can also change to.

For example, the configuration of the left and right lifting support which freely lifts and supports the horizontal moving support only in the up and down direction, which is one component of the present invention, the left and right lifting shafts 44 each having one left and right round bar as in one embodiment. In addition to the configuration formed by (45), one rectangular cross-sectional plate or square member may be used, or two or more round bars or square rods and square members, respectively.

In addition, one component of the present invention, the configuration of the left and right lifting operation member for the lifting position control of the horizontal moving support, the left and right lifting platform 44 by the control of the predetermined rotation angle of the lifting drive shaft 55 as in one embodiment ( In addition to the link-type configuration of lifting and lowering the position of the 45 by the cam rods 53, 53 and the elevating rods 51, 52, the cam plate is laid on the elevating drive shaft 55 to form the left and right lifting tables 44, 45. It can also be formed by the cam type to control the lifting and lowering position.

In addition, one component of the present invention, the configuration of the left and right lifting operation member for the lifting position control of the horizontal moving support, the lifting drive device is configured to control the lifting drive shaft 55 at a predetermined rotation angle as in one embodiment. Meanwhile, the elevating operation member is provided with a rack in an up and down direction on either side of the left and right lifting tables 44 and 45, and interlocks with the left and right pinions respectively arranged on the lifting drive shaft 55 on the rack, respectively. The platform 44 and 45 can also be formed as a rack pinion member for elevating position control.

In addition, the configuration of the elevating drive cylinder for positioning the left and right elevating operation members to the elevating operation position at the same time, the air used to clean the dust of the working plate 31 and the acrylic plate with compressed air in a conventional acrylic cutting device Using a compressor pneumatic device, it is preferable to use a pneumatic lift drive cylinder 58 as in one embodiment, but in some cases, a hydraulic lift drive cylinder may be adopted.

In addition, the key components of the present invention, the configuration of the left and right lifting operation member for lifting and lowering control of the horizontal movable support and the lifting drive cylinder for the same, as one embodiment, the lifting cylinder with one lifting drive 58 Lifting position control of the left and right lifting platforms 44, 45 by two left and right cam rods 53, 54 and left and right lifting rods 51, 52, which are rotated to the lifting drive shaft by rotating the coaxial 55. In addition to the multi-level linked configuration

One or more pneumatic lifting drive cylinders or hydraulic lifting drive cylinders are installed on the lower and inner side of each of the left and right lifting platforms 44, 45, and the operating rods are mounted on the left and right lifting platforms 44, 45. It can also be implemented in a configuration to control the lifting and lowering by interlocking directly or indirectly connected by the lever link type indirect connection means.

According to the configuration of the rotary saw blade lifting device of the electric acrylic plate cutting device of the present invention as described above, as in the conventional rotary saw blade lifting type electric acrylic plate cutting devices, the rotary saw blade having been cut acrylic plate to the initial position By returning to the state lowered below the cutting level of the working plate at a certain distance, the cutting blade of the rotary saw blade prevents damage to the machined cutting surface and the edge of the cut acrylic plate at the source, and improves the machining precision. By simultaneously setting and separating the acrylic plate cut from the working plate to the reworking position during the return time, the cutting time can be shortened.

The rotary saw blade is swinging in the lateral direction during the cutting of the acrylic plate, which is caused by the conventional rotary saw blade lifting type electric acrylic plate cutting device supporting the rotary saw blade by a long free lifting shaft. Solve problems that are not available in the field,

The rotary saw blade drive shaft is formed integrally with the slider, and the slider is supported by a rigid fixed support structure which is moved only in the vertical direction and is not shaken in the lateral direction on the lifting shafts whose upper and lower ends are fixed to the work table. By almost completely preventing the fluctuation phenomenon, the dimensional accuracy of the acrylic plate cutting process can be formed with higher precision.

These features and effects of the present invention can improve the handleability of the acrylic cutting device as well as to ensure economic feasibility, and can significantly extend the scope of application by overcoming the limitations of the conventional use of cutting devices.

Claims (7)

A horizontal movable support installed horizontally in correspondence with the forward and backward moving positions of the rotary saw blade below the rectangular work bench supporting the working plate; A fixed left and right lifting support which is fixed to upper and lower support members at left and right ends of a work bench and supports the horizontal moving support freely in the vertical direction only; Left and right lifting support means for lifting and supporting the horizontal movable support only in the vertical direction with respect to the fixed left and right lifting support; A pneumatic or hydraulic lifting drive cylinder installed at least one of the supporting members on one side of the work table and installed through the left and right lifting support means and the lifting operation member; A left and right lifting operation member interposed between the left and right lifting support means and the lifting driving cylinder to operate the left and right lifting support means simultaneously with a lifting stroke of a predetermined length; A slider for freely moving forward and backward in the longitudinal direction via a sliding bearing member with respect to the upper surface of the horizontal support; A slider moving device for moving the slider forward and backward in the longitudinal direction; Saw blade driving motor which is located below the horizontal moving support and is fixed integrally with the slider and moved together, Saw blade driving motor and one side of the saw blade driving motor is connected to the belt transmission device and rotatably fixed to the upper surface of the slider and ; Rotary saw blade elevating device of the electric acrylic plate cutting device characterized in that it comprises a rotary saw blade that is fixed fixedly replaceable on one side of the saw blade drive shaft. According to claim 1, the configuration of the left and right lifting support, A left elevating shaft 44 fixed in a vertical direction to the left elevating shaft holders 44a and 44b respectively fixed to the upper and lower end supporting members 30a and 30b in the middle of the left side of the work table 30, It consists of the right lifting shaft 45 which is fixed in the vertical direction to the right lifting shaft holders 45a, 45b respectively fixed to the upper and lower end supporting members 30c, 30d in the middle of the right side of the worktable 30 Rotary saw blade lifting device of the electric acrylic plate cutting device characterized in that. The configuration of the left and right lifting support means according to claim 1, The left and right lifting tables 42 and 43 are fixedly assembled at left and right ends of the horizontal movable support 41, respectively, and the left lifting table 42 is a left lifting bearing 42a and 42b separated into two upper and lower left bearings. (46) is fixedly installed and freely elevated on the left elevating shaft (44), the right platform 43 is mounted on the right elevating bearing (46a) with the right elevating boss (43a) between the two plates, the right elevating Rotary saw blade elevating device of the electric acrylic plate cutting device, characterized in that freely up and down on the shaft 45. According to claim 1, the configuration of the left and right lifting operation member and the lifting drive cylinder, Left and right lifting rods 51 and 52 having upper ends respectively freely fixed to lower ends of the left and right lifting platforms 42 and 43 fixedly assembled to the left and right ends of the horizontal support 41; The upper end is freely connected to the lower end of the left and right lifting rods 51, 52, the lower end is a bearing metal (56, 56a) across the left and right lower support members (30c) (30d) of the worktable (30) Left and right cam rods 53 and 54 fixedly arranged on one side of the elevating drive shaft 55 rotatably installed in the furnace; A bidirectional controlled pneumatic elevating driving cylinder 58, in which a fixed end is freely mounted to the lower intermediate supporting member 30e of the work table 30 by a hinge 58b; Electric acrylic plate, characterized in that the lifting rod is connected to the operation rod (58a) of the elevating driving cylinder (58a) freely and the fixed end of the elevating driving rod (59) fixedly arranged on the middle one side of the elevating driving shaft (55). Rotary blade lifter of cutting device. The rotary saw blade elevating device of the electric acrylic plate cutting device according to claim 1, wherein the left and right lifting support means for the horizontal moving support further includes a shock absorber for the left and right lifting support. According to claim 1, the configuration of the left and right lifting operation member and the lifting drive cylinder, One or more pneumatic or hydraulic lifting drive cylinders are installed on the lower and inner sides of each of the left and right lifting platforms 44 and 45, and the operating rods are directly connected to the left and right lifting platforms 44, 45. Or the rotary saw blade elevating device of the electric acrylic plate cutting device characterized in that the lifting control by interlocking by indirect connection means of the lever link type. According to claim 1, the configuration of the left and right lifting operation member and the lifting drive cylinder, A pneumatic or hydraulic lifting drive cylinder installed at least one side of any one work surface; A rack installed in a vertical direction on one side of the left and right lifting support means; A rotary saw blade elevating device of an electric acrylic plate cutting device, characterized in that it is composed of a pinion interlocked with the rack while interlocking with an operation rod of the elevating driving cylinder.