KR960008627B1 - Device for cutting molten glass - Google Patents

Abstract

None.

Description

Melt Grass Cutting Machine

1 is a plan view of a molten glass cutting apparatus showing an embodiment of the present invention.

2 is an exploded perspective view of the homogeneous base mechanism.

3 is a side view of the molten glass cutting device.

4 is a homogeneous longitudinal cross-sectional view.

5 is a perspective view of the opening and closing mechanism of the pair of opening and closing arms.

* Explanation of symbols for main parts of the drawings

1: holding base 2: fixed base

3: bolt support part 4: bolt

5: first movable base 6: side wall

7: guide 8: fitting recess

9: stonework 10: guide plate

11: guide groove 11: interlocking frame

13 vertical part 14 fitting hole

15: nut body 16: fitting cylinder

17: knob 18: screw

19: screw hole 20: interlocking frame

21: vertical portion 22: fitting hole

23: nut body 23: nut body

24: fitting cylinder portion 25: handle portion

26: stop ring 27: screw

28: second movable base 29: bolt support

30: bolt 31: support

32: pivot center 33: bearing body

34: gear 35: bearing body

36: opening and closing arm 37: inclined shape

38: straight extension shape 39: fitting hole

40: blade fitting 41: cutting blade

42: blade 43: working piece

44: bearing body 45: fitting hole

46: interlocking frame 47: lock nut

48: long guide groove 49: bolt

50: washer 51: handle

52: hydraulic cylinder device 53: cylinder body

54 cylinder head 55 support

56: trunnion 57: connection rod

58: piston rod 59: protruding shaft portion

60: screw 61: adjusting nut

62 linkage 63 through hole

64: interlocking pin 65: adjusting nut

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a molten ceramic cutting device, comprising: in a super magnetic molding apparatus for press molding a desired product by means of an upper mold and a lower mold, a molten ceramic to be supplied to the lower mold It is about cutting into.

Conventionally, as this kind of melt-moulded cutting device, for example, it is installed and fixed in a vertical shape on both sides of the base body against the bearing body, and the pivot shafts in the vertical direction in the bearing body on both sides are rotated in the axial rotation direction, respectively. Rotation is freely axially fixed, and the pinions, which are engaged with each other in the center of rotation of both sides, are fixed to each other, and the base ends of the pair of opening and closing arms are respectively fixed to the pinions of both sides and the center of rotation of both sides, respectively. It is known that a structure in which a cutting blade for transferring molten grass is fixed by overlapping the tip portions of the pair of opening / closing arms, and the forward and backward retreat is freely installed on the base body by engaging the pinion of the one pivot center shaft.

Then, one pinion is rotated by the rack, and the other pinion is interlocked by the one pinion, and the pair of opening and closing arms is opened and closed by the pivot center fixed to the pinions on both sides. It is to cut the molten glass by overlapping the cutting edge of the tip of the opening and closing arm.

In the above configuration, the pinion of one pivot center shaft having the opening and closing arm is forcibly rotated by the rack, and the pinion of the other pivot center shaft having the opening and closing arm is forcibly rotated by the one pinion. The load that rotates the pivot center with the opening and closing arm is concentrated, and the teeth of the rack and the pinion tend to wear, and the wear and tear of the pair of the opening and closing arms of the pair of opening and closing arms cause the error. The state where the cutting blades overlap with each other becomes inaccurate, and there is a lack of certainty of accurately cutting the molten candle from a predetermined position with the cutting knife of the pair of opening and closing arms, and the pair of opening and closing arms cannot be maintained at the set position. There is this.

In such a case, the pinion needs to be replaced. However, since the pinion is fixedly attached to the respective pivot centers while being engaged with each other, there is a problem that the pinion needs a lot of effort.

The present invention has been made in view of this point, and the pair of opening and closing arms can always be opened and closed at a constant opening and closing angle around the pivot center of both sides, and an error does not occur at the opening and closing angle of the pair of opening and closing arms. At the same time, the cutting blades provided at the distal ends of the pair of opening and closing arms overlap with each other, and the molten candle can be cut precisely from a predetermined position, and the racks and pinions are adopted to open and close the pair of opening and closing arms. There is no room for error between the opening and closing angles of the pair of opening and closing arms or the overlapping state of the cutting edges, and the pair of opening and closing arms can be held in the set position reliably. Provides a molten glass cutting device that can adjust the setting position of the cutting edge of the arm according to the falling position of the molten glass That is the purpose.

The molten glass cutting device according to claim 1 of the present invention has a fixed base vertically mounted on both sides in a vertical shape with respect to the pivotal axis, and the opening and closing are freely attached to the pivotal center shafts on both sides of the fixed base in the horizontal direction. A pair of opening and closing arms fixed and overlapping each leading end with a cutting blade for cutting molten glass, and fixedly attached to and interlocking with each other at the base end of the pair of opening and closing arms, respectively, with respect to the pivot centers on both sides. And a pair of gears that rotate at the same speed, and a pair of cylinders that open and close the pair of opening and closing arms about their respective pivot center axes.

Further, in the apparatus according to claim 1, in the apparatus of claim 1, the stationary base has a movable base free of forward and backward adjustment in the front-back direction and the left-right direction, and both side portions of the movable base. It is installed in a vertical shape against the pivotal axis.

In the molten metal cutting device according to claim 1, when the piston rod is stretched by operating the cylinder device, the pair of opening and closing arms are opened and closed in the horizontal direction at the same opening and closing speed with respect to the respective pivot center axes. At the same time as the rotation, the cutting edges of the tip portions of the pair of opening and closing arms are opened and closed in the horizontal direction.

In the case of cutting the molten glass, the pair of opening and closing arms are rotated horizontally toward each other at the same closing speed around each pivotal center by extending the piston rod, and at the same time, the cutting edges of the front and closing arms are the same. It is closed in a direction close to each other at the closing speed. Thus, the pair of opening and closing arms of the pair of cutting blades are superimposed accurately at the relative position of the aptitude into the set closed position, and the pair of cutting blades are accurately cut from the predetermined position.

The pair of opening and closing arms are rotated in the horizontal direction at the same opening and closing speed, and at the same time, the pair of gears fixedly attached to the pair of opening and closing arms are engaged with each other while being engaged with the opening and closing rotation.

And with the pair of gears meshed with each other, the opening and closing arms of the phase are reliably maintained in the set open and closed positions.

When opening and closing the pair of opening and closing arms, a pair of opening and closing arms are opened and closed by a cylinder device, and the pair of gears are rotated in conjunction with the rotation of a pair of opening and closing arms, and the pair of gears force a pair of opening and closing arms. Since it does not open and close, there is no such thing as the tooth of a pair of gears simply wearing off.

In the molten glass cutting device according to claim 1, the setting position of the pivotal center shaft, which is installed in a vertical shape relative to both sides of the movable base, is easily changed by adjusting the forward and backward directions in the front and rear directions and the left and right directions with respect to the fixed base. The position of the cutting blades of the pair of opening and closing arms, which are free to rotate in the horizontal direction provided on the rotational center shafts of both sides, is simply adjusted and set in accordance with the cutting positions of the molten glass.

EXAMPLE

Hereinafter, the configuration of one embodiment of the present invention will be described with reference to the drawings.

In Fig. 1 and Fig. 2, reference numeral 1 denotes a support which is vertically installed and fixed to a predetermined position of the molding mechanism, and the fixing base 2 is fixedly attached to the upper end of the support 1 in a horizontal shape. The base 2 is formed in a planar rectangle, and the bolt support 3 is integrally protruded from one side of the lower left and right directions thereof, and the bolt support 3 is formed of a horizontally long bolt 4 arranged in a horizontal shape. One end is fixedly attached and the bolt 4 protrudes horizontally outward.

Moreover, the sliding movement of the 1st movable base 5 in the left-right direction is fitted freely on the said fixed base 2. The first movable base 5 is formed in a planar rectangle, and both side lower portions in the front-rear direction thereof protrude in parallel integrally toward the lower side and face each other in parallel with each other. Guides 7 are formed at the lower end in left and right directions, respectively. Then, the fitting recess 8 in which the sliding movement is freely fitted to the fixed base 2 is formed by the lower surface portion of the first movable base 5 and the side walls 6 before and after the first movable base 5. The guide 7 at the lower end of the side wall 6 is slid along the lower surface of the front and rear edges of the fixed base 2. In addition, the front and rear guides 7 prevent the first movable base 5 from falling out above the fixed base 2.

Further, the first movable base 5 and the upper and lower ends in both the left and right directions thereof protrude in parallel and are integrally protruded in parallel to each other, and a guide plate is provided at the upper end of the left and right protrusions 9. 10 is fixedly fixed in parallel, and the inner end portion of the left and right guide plates 10 protrudes inward from the inner wall surface of each of the protrusions 9.

And the guide groove 11 is formed in parallel with the both ends of the left-right direction of the upper surface part of the said 1st movable base 5, the said left and right protrusion 9, and the guide plate 10. As shown in FIG.

The first movable base 5 is fixedly attached to an interlocking frame 12 formed in an L-shape as viewed from the side at one end in the left and right direction thereof, and protrudes toward the lower direction of the interlocking frame 12. In the vertical portion 13, a fitting hole 14 through which the bolt 4 of the fixed base 2 rotates freely is formed to penetrate in the left and right direction, and the fitting hole 14 has the bolt ( The nut body 15 screwed in 4) is rotatably fitted and supported. The nut body 15 has a fitting cylinder portion 16 freely rotatable in the fitting hole 14, and has a diameter larger than that of the fitting cylinder portion 16 at the outer end of the fitting cylinder portion 16. While the handle portion 17 is integrally formed, the fitting cylinder portion 16 is fitted with a stop ring (not shown) having a diameter larger than the fitting hole 14 at the inner end portion thereof.

In addition, the fitting cylinder portion 16 and the handle portion 17 are formed with a screw 18 screwed to the bolt (4). Moreover, the screw hole 19 is formed in the up-down direction in the about intermediate part of the said 1st movable base 5. Then, by rotating the nut body 15, the first movable base 5 is moved forward and backward in the left and right direction with respect to the fixed base 2 through the bolt 14 so that the set position is adjusted. .

In addition, the first movable base 5 is vertically protruded toward the upper side of the interlocking frame 20 integrally fixedly attached to the interlocking frame 20 formed in an L-shape at the side at one end in the front-rear direction thereof. The fitting portion 22 penetrates in the front-rear direction in the shape portion 21, and the fitting hole 22 has a fitting cylindrical portion 24 in which the nut body 23 is freely rotatably fitted. The outer end portion of the cylinder portion 24 is integrally formed with a handle portion 25 having a diameter larger than that of the fitting cylinder portion 24, and a diameter larger than the fitting hole 24 at the inner end portion of the fitting cylinder portion 24. The fall prevention stop ring 26 is fitted and the screw 27 is formed in the fitting cylinder part 24 and the handle part 25.

Next, on the said 1st movable base 5, the 2nd movable base 28 slides freely in the front-back direction. The second movable base 28 is formed in a planar rectangular shape with the size of sliding along the left and right guide grooves 11 of the first movable base 5, and has a convex bolt at one end in the front-rear direction. The support part 29 is integrally protruded, and the bolt support part 29 is fixedly attached to one end of the bolt 30 which is arranged in a horizontal shape in a longitudinal direction, and is integrally fixed to the bolt support part 29. It protrudes horizontally. At the other end of the bolt 40, a nut body 23 fitted into the fitting hole 22 of the interlocking frame 20 is screwed. Then, by rotating the nut body 23, the second movable base 28 is moved forward and backward with respect to the first movable base 5 via the bolt 30, and the set position is It is intended to be adjusted.

The second movable base 28 is fixedly attached to the tray-shaped support body 31 at the other end portion in the front-rear direction thereof, and has a long center of rotation in the vertical direction at both side portions in the left-right direction of the support body 31. The shafts 32 are fixed to each other in a vertical shape in parallel to each other and are installed and fixed, and the gears 34 meshed with each other via the bearing body 33 are provided at the lower ends of the left and right pivot center shafts 32. The shaft is freely rotated. The left and right gears 34 are formed with the same number of teeth, respectively, and are rotated at the same speed with respect to the respective rotation center shafts 32.

The left and right pivot center shafts 32 are positioned at the upper portion of the gear 34, and the base ends of the pair of opening and closing arms 36 are freely opened and closed in the horizontal direction via the bearing body 35. have. The pair of opening and closing arms 36 has an inclined portion 37 on the base end side and a straight extension portion 38 on the tip end side, and is formed in a planar reagent shape, and the base of the inclined portion 37 An end portion of the linear elongate portion 38 is formed with a fitting hole 36 having a fitting hole 36 freely fitted to the pivot center shaft 32 via the bearing body 35. 40) The position adjustment is freely attached. In addition, the blade attachment port 40 is detachably attached to the cutting blade 41 for cutting the molten glass, and the concave-shaped blade portion for cutting the molten glass by overlapping the tip of the cutting blade 41 up and down each other. (42) is formed.

When the pair of opening and closing arms 36 are closed to each other, the linear extension portions 38 are substantially parallel to each other, and the cutting edges 41 overlap each other in the state of overlapping the left and right pivotal shafts ( 32) the base end portion is freely opened and closed in the horizontal direction, respectively.

In addition, at the base end portions of the pair of opening and closing arms 36, the operation pieces 43 are protruded in parallel to the upper and lower portions, respectively. That is, the inclined direction of the inclined portion 37 is such that the operation piece 43 of the left and right lower portions is interposed between the gear end 34 and the base end of the pair of opening and closing arms 36. Arranged and installed through the bearing body 35 in a state inclined at a predetermined inclination angle in the opposite direction to the opposite direction, and the base end portions of the left and right operating pieces 43 of the lower left and right sides of the gear 34 and the pair of opening and closing The base 36 of the arm 36 is integrally fixed with a bolt or the like.

The operation piece 43 of the upper left and right upper parts has its base end positioned above the base end of the pair of opening and closing arms 36, and has a lower operation piece in a direction opposite to the inclination direction of the inclined portion 37. In a state inclined at an inclination angle as shown in (43) through the bearing body 44 fitted to the pivot center shaft 32, and the base end of the operation piece 43 of the left and right upper parts is The base end of the opening arm 36 is integrally fixed with a bolt or the like. And it is arranged and fixed in parallel in the up and down and is connected to the base end portion of the pair of opening and closing arms 36 in the inclined state spreading toward the front at the same inclination speed of the left and right operating pieces 43, respectively. .

At the base end portions of the left and right upper and lower working pieces 43, fitting holes 45 penetrating in the vertical direction are formed through each other in a vertical direction.

In addition, the connection is located at the upper end of the base end portion of the left and right operating piece 43, the left and right pivot center shaft 32 via the bearing 44 to maintain the gap between the left and right pivot center shaft 32 The plate 46 is fitted, and the lock nut 47 is screwed to the left and right pivot center shafts 32 via the connecting plate 46. An elongated guide groove 48 is formed in the second movable base 28 at an intermediate portion in the left and right directions, and the elongated guide groove 48 is formed in the front and rear directions, and the elongated guide groove 48 is formed of the first movable base 5. The bolt 49 screwed into the screw hole 19 freely moves, and the handle 51 is fixedly attached to the upper end of the bolt 49 through the washer 50. Then, the second movable base 28 is fixed to the first movable base 5 by the pivoting operation of the handle 51 at the set position.

52 is a hydraulic cylinder device as a cylinder device for opening and closing the pair of opening and closing arms 36 about each pivot center shaft 32, and the hydraulic cylinder device 52 has a cylinder body 53, The cylinder heads 54 are fitted to the left and right ends of the cylinder body 53 without gaps, respectively, and at the same time, the support body 55 is disposed between the cylinder heads 54 at both ends of the cylinder body 53. It fits in an intermediate part, and the trunnion 56 protrudes integrally toward the up-down direction up and down of this support body 55, respectively.

In addition, the support 55 and the cylinder head 54 at both ends are connected by a plurality of connecting rods 57.

Both side portions of the piston rod 58 connected to the piston (not shown) installed in the cylinder body 53 are freely pushed back and forth in the axial direction without water leakage, respectively, with respect to the cylinder head 54 at both ends. The adjusting nut 61 is freely screwed forward and backward in the screw 60 on the protruding shaft portions 59 of both side portions of the piston rod 58 protruding outward from the cylinder head 54 at both ends. . The opening and closing angles of the pair of opening and closing arms 36 are adjusted by the adjustment operation by the rotation of the adjusting nut 61.

In addition, the interlocking body 62 is supported through the through-hole 63 by the interlocking body 62 by the protrusion shaft 59 of the piston rod 58 which protrudes outward from the left cylinder head 54, and this interlocking body 62 The upper and lower portions of the interlocking pins 64 protrude in an upward and downward direction, respectively, and the adjustment nut 65 is freely screwed forward and backward on the protruding shaft portion 59 protruding outward from the interlocking body 62. . The overlapping degree of the cutting blades 41 of the pair of opening and closing arms 36 is uncontrolled by the adjustment operation by the rotation of the adjustment nut 65.

Thus, the hydraulic cylinder device 52 is arranged between the operation pieces 43 of the base end portion of the pair of opening and closing arms 36, and the opening and closing arm on the right side of the pair of opening and closing arms 36 is arranged. The upper and lower trunnions 56 of the support body 55 of the hydraulic cylinder device 52 are rotatably fitted in the fitting holes 45 of the upper and lower operating pieces 43 of 36, respectively. The upper and lower interlocking pins 64 of the linking body 62 of the hydraulic cylinder device 52 are located in the fitting hole 45 of the upper and lower operating pieces 43 of the opening and closing arm 36 on the left side of the opening and closing arm 36. Each of these rotations is fitted freely.

In addition, the pair of opening and closing arms 36 open and close horizontally with respect to each pivot center shaft 32 by the expansion and contraction operation of the piston rod 58 of the hydraulic cylinder device 52. At this time, the upper and lower operating pieces 43 of the pair of opening and closing arms 36 with respect to the linear movement of the piston rod 58 are circular motions around the respective pivot center shafts 32, so that the upper and lower operating pieces 43 on the right side are The upper and lower trunnions 56 of the fitting hole 45 of the support body 55, the fitting holes 45 of the upper and lower operating pieces 43 of the left side, and the upper and lower interlocking pins 64 of the linking body 62; Rotation is freely fitted, respectively, and is connected in a fitted state in which the left and right operating pieces 43 are smoothly converted into circular motions by the linear motion of the upper and lower trunnion 56 and the upper and lower interlocking pins 64. .

Next, the operation of the above embodiment will be described.

When the hydraulic cylinder device 52 is operated to expand and contract the piston rod 58, the pair of opening arms 36 are opened at the same opening and closing angle with respect to each pivot center 32 by the piston rod 58. At the same time, the cutting edges 41 of the tip portions of the pair of opening and closing arms 36 are opened and closed in the horizontal direction.

And when cutting a molten glass, the up-and-down operation piece 43 of the opening-and-closing arm 36 of the right side is carried out by the up-and-down trunnion 56 of the support body 55 of the right side arranged side by side by extending the piston rod 58. The upper and lower operating pieces 43 of the left and right arm 36 are interlocked in the direction in which the upper and lower interlocking pins 64 of the left linking body 62 are open at the same time. The pair of opening and closing arms 36 are horizontally rotated toward each other at the same closing angle with respect to the respective pivot centers 32, and at the same time, cutting edges 41 of the tips of the opening and closing arms 36 of the pair. It is closed in the direction close to each other at the same closing angle. Thus, the pair of cutting edges 41 are mutually superimposed up and down from the left and right in the relation position of aptitude at the set position where the pair of opening and closing arms 36 are set, and the concave arc of the pair of cutting edges 41 is also. With the blade 42 of the shape, the melted grass is accurately cut at a predetermined position.

In addition, when the pair of cutting blades 41 are separated from each other by cutting the molten glass, the piston rod 58 is contracted so that the upper and lower trunnions 56 of the support body 55 on the right side of the opening / closing arm 36 of the right side are closed. The upper and lower operating pieces 43 are interlocked in the direction in which the upper and lower operating pieces 43 of the left opening / closing arm 36 are simultaneously approached by the upper and lower interlocking pins 64 of the left linking body 62, respectively. 43), the pair of opening and closing arms 36 are rotated horizontally in the direction of being separated from each other at the same opening angle around each pivot center 32, and at the same time, the tip end of the pair of opening and closing arms 36 is The cutting blade 41 of is also opened and rotated toward the direction away from each other at the same opening angle. Thus, the pair of cutting edges 41 are mutually spaced apart from each other in the left and right directions at the position where the pair of opening / closing arms 36 are positioned at the aptitude of the set opening position, and is prepared for cutting of the next molten grass.

The pair of opening and closing arms 36 are rotated in the horizontal direction at the same opening and closing angle, and the pair of opening and closing gears 34 fixedly attached to the base end of the pair of opening and closing arms 36 are engaged with each other. It rotates in conjunction with opening / closing rotation of the arm 36. And with a pair of gears 34 meshed with each other, the pair of opening and closing arms 36 are reliably held in the set open and closed positions.

When opening and closing the pair of opening and closing arms 36, the pair of opening and closing arms 36 are opened and closed by the hydraulic cylinder device 52, and the pair of gears 34 are interlocked by the rotation of the pair of opening and closing arms 36. Since the pair of opening and closing arms 36 are not forcibly opened and closed by the pair of gears 34, the teeth of the pair of gears 34 are not easily worn.

Subsequently, when it is necessary to move and adjust the pair of opening and closing arms 36 having the cutting blades 41 in the horizontal direction, the nut body 15 of the first movable base 5 is rotated. The first movable base 8 having the nut body 15 through the bolt 4 with the nut body 15 while being retracted forward along the bolt 4 fixedly attached to the fixed base 2. Is moved forward and backward along the fixed base 2 via the fitting recess 8 and the guide 7 before and after. Then, the aptitude in the left and right directions of the pair of opening and closing arms 36 attached to the left and right pivotal center shaft 32 via the second movable base 28 fixed on the first movable base 5 is fixed. It is moved to the position, and the position of the cutting blade 41 of the pair of opening and closing arms 36 is adjusted to the cutting position of the aptitude in the left and right directions to cut the molten glass.

In the case where it is necessary to move and adjust the pair of opening and closing arms 36 having the cutting blades 41 in the front and rear directions, the nut body 23 is rotated by operating the nut body 23 of the first movable base 5. Is moved forward and backward along the bolt 30 fixedly attached to the second movable base 28 and at the same time, the left and right guide grooves of the first movable base 5 are interposed with the nut 30 through the bolt 30. Along the 11), the second movable base 28 is moved forward and backward in the front-rear direction. Then, the pair of opening and closing arms 36 attached to the left and right pivot center shaft 32 on the second movable base 28 are moved and set to the appropriate position in the front and rear directions, and the pair of opening and closing arms 36 are cut. The position of the blade 41 is adjusted and set to the cutting position of the aptitude in the front-back direction to cut the molten glass.

Thus, by tightening and rotating the bolt 49 with the handle 51, the second movable base 28 is fixedly attached to the first movable base 5 at the set position by the bolt 49.

In addition, when it is necessary to fine-adjust the overlapping state of the cutting blades 41 of the pair of opening-and-closing arms 36, the adjustment of one protrusion shaft 59 of the piston rod 58 in the hydraulic cylinder device 52 is performed. When the nut 65 is rotated, the adjusting nut 65 is moved forward and backward along one protruding shaft portion 59, and the linking body 62 is slightly moved in the axial direction by the adjusting nut 65. The distance between the upper and lower interlocking pins 64 of the linkage 62 and the upper and lower trunnions 56 of the support 55 is simply unregulated. Then, the opening and closing angle of the opening and closing arm 36 of the upper phase is adjusted, and when the pair of opening and closing arms 36 are closed and rotated in the closed position, the overlapping state of the respective cutting blades 41 is unregulated.

In the above embodiment, the pair of opening and closing arms 36 are described in the case of opening and closing operation by the hydraulic cylinder device 52, but not limited to this, the pair of opening and closing arms 36 are air cylinder device, each of the pivot center ( 32) may be opened and closed.

According to the invention of claim 1, opening and closing of a pair of opening and closing arms in the horizontal direction are freely attached to the rotational central shafts which are mounted on both sides of the fixed base, respectively. Since the cylinder device for opening / closing operation is arranged, the cylinder device can always open and close a pair of opening and closing arms at a constant opening and closing angle around the pivot center of both sides, and the opening and closing angle of the pair of opening and closing arms At the same time, the overlapping state of the cutting blades provided at the distal end of the pair of opening and closing arms is accurate, and the molten glass can be cut accurately at a predetermined position, and the rack and pinion are adopted to open and close the pair of opening and closing arms. As a result, these wear and tear cause errors between the opening and closing angles of the pair of opening and closing arms, or between the cutting edges. There is no room for the overlapping state to be inaccurate, and a pair of gears are fixedly attached to the base end portions of the pair of opening and closing arms and rotated at the same speed around the pivot center axis. It is possible to reliably hold the open / close arm at the set position, and accordingly, it is possible to provide a molten glass cutting device capable of always cutting the melted oil grass accurately from the predetermined position by a simple configuration.

According to the invention of claim 2, the forward and backward adjustment is freely provided in the movable base in the front-back direction and the left-right direction on the fixed base, and is vertically opposed to the pivotal axis having a pair of opening and closing arms on both sides of the movable base. Since it is installed upright, the movable base can be adjusted by simply adjusting the setting position of the cutting edge of the pair of opening and closing arms in accordance with the falling position of the molten candle.

Claims (2)

Opening / closing are freely attached to both side portions of the fixed base 2, which is vertically installed against the pivotal center shaft 32, and to the pivotal center shafts 32 on both sides of the fixed base 2, respectively. A pair of opening and closing arms 36 having a cutting edge 41 which is fixed and overlaps each leading end to cut the molten glass, and is fixedly attached to and engaged with each other at the base end of the pair of opening and closing arms 36. Opening and closing operation of the pair of gears 34 and the pair of opening and closing arms 36 which rotate at the same speed around the rotational center shafts 32 on both sides, respectively. Melting grass cutting device characterized in that it comprises a cylinder device 52 to make. The stationary base (2) has a movable base which is free to move forward and backward in the front-rear direction and the left-right direction, and is installed in a vertical shape on both sides of the movable base against the pivot center shaft (32). Melt chopping device, characterized in that.