KR20080088080A - Round Boundary Stone Manufacturing Equipment - Google Patents

Abstract

An apparatus for manufacturing round boundary stones is provided to prevent damage of cutting wires by adjusting tension of the cutting wires and manufacture the round boundary stones by forming a plurality of driven wheels which correspond to cutting wire grooves. An apparatus for manufacturing round boundary stones comprises a guide rail(10), a pair of supports(30), a stone cutter(100), and a pulley(20). The supports are vertical to two sides of the guide rail. The stone cutter is lifted up and down through the supports. The pulley on which a stone(B) is laid reciprocates along the guide rail to cut the stone when the stone cutter is operated. The stone cutter includes a driving wheel(110) lifted up and down at one side of the support, a plurality of driven wheels(120) lifted up and down along the driving wheel, a plurality of cutting wires(130) wound on the driven wheel, a tension adjusting unit(150), and a lifting unit(140) lifting up and down the driving and driven wheel together.

Description

Apparatus for manufacturing round type curbstone}

1 is a view showing a state in which a round boundary stone is constructed.

Figure 2 is a perspective view showing a conventional round boundary stone manufacturing apparatus.

3 is a perspective view of a round boundary stone;

Figure 4 is a perspective view showing a round boundary stone manufacturing apparatus according to the present invention.

Figure 5 is a side view of a round boundary stone manufacturing apparatus according to the present invention.

6 is a cross-sectional view of a drive wheel constituting the present invention.

7 is a view showing the operating state of the cutting wire tension control device constituting the present invention.

 <Description of the symbols for the main parts of the drawings>

100 ... stone cutter 110 ... drive wheel

111 Drum 112

114 ... cutting wire groove 120 ... driven wheel

130 ... cutting wire 140 ...

141 ... Horizontal Bar 142 ... Hot Drive Motor

143 ... Horizontal axis of rotation 144 ... Bevel gear

145 Spiral shaft 150 Tension control means

151 Upper wheel 152 Lower wheel

153 Hinge lever 154 Hinge shaft

155 Tension adjustment cylinder A ... Round boundary stone

B ... stone C ... drive shaft

M ... drive motor

    The present invention relates to an apparatus for manufacturing a boundary stone, and more particularly, to a round boundary stone manufacturing apparatus capable of quickly processing a round boundary stone constructed at a corner portion such as a road, such as a crossroads.

In general, the road boundary stone is a structure that is installed between the sidewalk and the roadway, and the round boundary stone A as shown in FIG. 1 is required in a rounded section such as a straight type or a crossroads. And the round boundary stone (A) as described above is manufactured by cutting the stone (B) in a round.

As shown in FIG. 2, the conventional round boundary stone manufacturing apparatus 1 includes a guide rail 10 installed at a bottom, a bogie 20 reciprocating a predetermined section along the guide rail 10, and the A pair of struts 30 vertically placed on both sides of the guide rail 10 and the stone B placed on the trolley 20 so as to be lifted and lowered through the struts 30 are used to cut the cutting wire 41. It is made of a stone cutter 40 to cut vertically through.

In addition, a pair of support brackets 40a are provided at an upper portion of the support 30, and horizontal members 50 fixed at both ends of the support 30 are respectively supported on the support 30. This is installed. The stone cutter 40 is installed through the support brackets 40a, and the support brackets 40a are lifted through the vertical spiral rods 52 driven by the lifting and driving motors 51 installed on the horizontal members 50. Will be done.

In addition, according to the operation of the stone cutter 40 is further provided with a control device (not shown) for controlling the forward or backward operation of the bogie 20, the stone (B) to be processed is placed.

The stone cutter 40 is composed of a driving wheel 42 and a driven wheel 43 installed on each support bracket 40a and a cutting wire 41 wound around the driving wheel 42 and the driven wheel 43. . Cutting wheel grooves 42a and 43a are formed in the driving wheel 42 and the driven wheel 43 to prevent the cutting wire 41 from being separated.

Conventional round boundary stone manufacturing apparatus (1) having such a configuration is to produce a round boundary stone (A) in the following order.

First, when the stone B is placed on the upper surface of the trolley 20, the trolley 20 is moved vertically downward of the stone cutter 40 along the guide rail 10.

At the same time, the lifting means is operated to lower the stone cutter 40 at an appropriate speed, and the cutting wire 41 starts to rotate at a high speed while the driving wheel 42 of the stone cutter 40 rotates.

As the stone cutter 40 continues to descend, the stone B begins to cut vertically, at which time the controller moves the trolley 20 forward at an appropriate speed. That is, the control device advances the trolley 20 gradually while the cutting wire 41 starts cutting the stone B. FIG. When the cutting wire 41 reaches the middle portion of the stone B, the controller gradually reverses the trolley 20.

In this way, as shown in FIG. 2, the rounded boundary stones A are maximized, and the curvature of the rounded boundary stones A depends on the forward and backward speeds of the bogie 20.

Then, the completed round boundary stone (A) can be recut to an appropriate thickness to meet the place or specifications to be constructed. As a result, the final round boundary stone A1 as shown in FIG. 3 is obtained.

The conventional round boundary stone manufacturing apparatus 1 configured and operated in this way has the following problems.

First, since a single round cutting surface is inevitably obtained by the series of operations as described above, the productivity is greatly reduced, and thus a lot of time and expense are required to cut the stone (B).

Second, the stone B is partially mixed with a strong stone and a weak part. When the cutting wire 41 passes through the high hardness stone part, the load is greater than when passing through the low hardness stone part. In this process, the cutting wire 41 is frequently broken while excessive force is applied to the cutting wire 41.

SUMMARY OF THE INVENTION An object of the present invention is to provide a round boundary stone manufacturing apparatus which reduces the time and cost required for cutting a stone and prevents damage to the cutting wire due to the difference in stone of the stone being cut.

The present invention for achieving the above object is a guide rail installed on the floor, a pair of struts standing vertically on each side of the guide rail, a stone cutting machine installed to be elevated through the struts, and the lifting operation of the stone cutter In the round boundary stone manufacturing apparatus having a bogie for reciprocating a predetermined section along the guide rail in a state where the stone is raised to make the surface of the stone cut, the stone cutter is driven to be elevated on one side of the support A wheel, a plurality of driven wheels provided on the other side of the support to move up and down together; a plurality of cutting wires wound around each driven wheel via the driving wheel; and cutting wire tensions provided on the driven wheels. And adjusting means and lifting means for lifting the driving wheel and the driven wheel together.

In addition, the tension control means is a hinge lever fixed on the axis of rotation of each driven wheel, a hinge axis to which the hinge levers are rotatably fitted, and each of the hinge levers to impart rotational force independently of each driven wheel. A plurality of tension control cylinders for adjusting the tension of the cutting wire by changing the phase, and an upper wheel disposed between the driving wheel and the driven wheel to move together with the driven wheel to maintain a constant posture of the cutting wire during the phase change of the driven wheel. And a lower wheel and a tension sensor that senses the tension of the cutting wire and controls the operation of the tension control cylinder.

On the other hand, it is preferable that the cutting wire grooves corresponding to the driven wheel are formed along the circumferential direction on the outer circumferential surface of the driving wheel.

In this case, the cutting wire grooves may be formed at different intervals according to the standard of the boundary stone to be processed.

In addition, the driving wheel may be composed of a cylindrical drum constituting the body of the wheel, and a disc for partitioning the inside of the drum eccentrically in a direction perpendicular to the drive shaft of the drum, in which case the disc is a drive shaft from the centerline of the drum It is preferable to be fixed eccentrically toward.

In addition, the connection portion between the disc and the drum is preferably formed round.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

In the following description of an embodiment of the present invention in detail with reference to the drawings, the same reference numerals are used for the same configuration, and only the different parts will be mainly described so as not to overlap for clarity.

As shown in Figure 4 and 5, the present invention is a guide rail 10 installed on the floor, a pair of struts (30) vertically standing on both sides of the guide rail 10, and the strut 30 The guide rail 10 in the state in which the stone B is raised so that the curved surface cutting of the stone B may be performed during the lifting operation of the stone cutter 100 and the stone cutter 100 installed to be elevated by the lift. Accordingly, the balance 20 is basically provided to reciprocate a certain section.

All of the components except the stone cutter 100 are similar to the conventional round boundary stone manufacturing apparatus, and thus detailed description thereof will be omitted.

The stone cutter 100 may include a driving wheel 110 installed to be elevated on a support 30 on one side, and a plurality of driven wheels 120 installed on the other support 30 to be lifted up and down with the driving wheel 110. ), A plurality of cutting wires 130 wound around each driven wheel 120 via the driving wheel 110, cutting wire tension adjusting means 150 provided at the driven wheel 120, Lifting means 140 for lifting the drive wheel 110 and the driven wheel 120 together.

The lifting means 140 has a horizontal bar 141, both ends of which are fixed to each support 30, and a lifting driving motor 142 installed at one side of the horizontal bar 141. In addition, a horizontal rotating shaft 143 is horizontally rotated by receiving power from the rotating shaft of the elevating driving motor 142 inside the horizontal bar 141. It is preferable that the rotating shaft and the horizontal rotating shaft 143 of the elevating driving motor 142 receive power through a gear.

Bevel gears 144 are installed at both ends of the horizontal rotating shaft 143, and the spiral rotating shaft 145 is installed through the bevel gear 144. The spiral rotating shaft 145 is vertically installed in parallel with the support 30, and is converted into a vertical rotating power by the horizontal rotating power of the horizontal rotating shaft 143 through the bevel gear 144.

The support brackets 146 are coupled to the pair of spiral rotating shafts 145, respectively. The support bracket 146 is fitted to the outside of the support 30 so as to be slid along the corresponding support 30. Therefore, the support bracket 146 is vertically lifted along the spiral groove formed on the outer circumferential surface in the direction in which the spiral rotating shaft 145 rotates.

On the other hand, the drive wheel 110 is installed through the support bracket 146 and rotates to receive a driving force from the drive motor (M) installed on one side of the support bracket 146.

In addition, the driven wheel 120 is installed on the opposite post 30 on which the driving wheel 110 is installed. The driven wheel 120 is installed in plural so as to be able to rotate independently, and rotates along the driving wheel 110 through the cutting wire 130 wound around the driving wheel 110 and the driven wheel 120.

On the other hand, as shown in Figure 5, the outer peripheral surface of the drive wheel 110, the cutting wire groove 114 corresponding to the driven wheel 120 installed on the support bracket 146 of the opposite support 30 in the circumferential direction Is preferably formed accordingly. At this time, the interval of the cutting wire groove 114 may be formed differently depending on the size of the boundary stone to be processed.

Therefore, when the cutting wire 130 is selectively installed in the cutting wire groove 114 according to the standard of the boundary stone to be processed, it is possible to manufacture rounded boundary stones of various specifications. In this case, it is natural that the distance between the driven wheels 120 should be readjusted to match the interval of the selected cutting wire groove 114.

As shown in FIG. 6, the driving wheel 110 of the present embodiment includes a cylindrical drum 111 constituting the body of the driving wheel 110 and a drive shaft C of the drum 111 inside the drum 111. It is composed of a disk 112 partitioned eccentrically in a direction perpendicular to the. In addition, the driving shaft C of the drum 111 is fixed to the center of the disc 112 in a state of entering the drum 111.

In this case, the disc 120 is preferably fixed to a position eccentrically by a certain distance (d) toward the driving motor (M) side from the center of the drum (111). As described above, when the disc 112 is fixed eccentrically from the center of the drum 111 toward the driving motor M by a predetermined distance d, the operating point of the driving shaft C is shortened, so that the driving wheel 110 Is able to receive a large driving force from the drive motor (M). In this case, the eccentric position of the disc 112 is determined at the design stage by calculating the maximum vertical load F applied to the drum 111 by the cutting wire 130.

In addition, the connecting portion 113 of the disc 112 and the drum 111 is formed to be round, so that the load transmitted from the drum 111 is smoothly transferred to the disc.

In addition, as shown in Figure 7, the driven wheel 120 is provided with a tension adjusting means 150 of the cutting wire 130.

The tension adjusting means 150 is disposed between the driving wheel 110 and the driven wheel 120 to move up and down with the driven wheel 120 to change the position of the cutting wire 130 when the phase of the driven wheel 120 changes. An upper wheel 151 and a lower wheel 152 are provided to keep them constant. The upper wheel 151 and the lower wheel 152 are supported through a support bracket 146 supporting the driving wheel 110.

In addition, the tension adjusting means 150 has a hinge lever 153 fixed to the rotating shaft of each driven wheel 120 and a hinge shaft 154 into which the hinge lever 153 is rotatably fitted. Each hinge lever 153 is provided with a tension control cylinder 155, respectively.

The tension control cylinder 155 rotates independently by pushing or pulling the hinge lever 153 about the hinge shaft 154 to change the phase of the corresponding driven wheel 120 connected to each hinge lever 153 to thereby drive the corresponding driven lever. The tension of the cutting wire 130 wound on the wheel 120 is adjusted independently.

The operation of the tension control cylinder 155 is made through a tension sensor (not shown). That is, when the tension sensor detects a tension above a predetermined tension, the tension control cylinder 155 pulls the hinge lever 153 to control the tension of the cutting wire 130 to be reduced, and when a tension below a predetermined tension is detected, the tension control is performed. The cylinder 155 controls to increase the tension of the cutting wire 130 by pushing the hinge lever 153.

The upper wheel 151 and the lower wheel 152 including the driving wheel 110 and the driven wheel 120 are all located on the same plane. Accordingly, the cutting wire 130 is driven along the driving wheel 110-. The upper wheel 151-> driven wheel 120-> the lower wheel 152 is wound in the order.

On the other hand, although not shown, the pair of struts 30 and the support brackets 146 are preferably wrapped by a separate protective cover. The protective cover prevents the relevant parts necessary for driving including the support 30 from being exposed to the outside so that the operation of the equipment is made in a safe state and at the same time the life of the equipment is improved.

The round boundary stone manufacturing apparatus of the present invention configured as described above operates as follows.

First, when the stone B is placed on the upper surface of the bogie 20, the bogie 20 is moved down the stone cutter 100 along the horizontal rail, and the lifting means 140 moves the stone cutter 100 appropriately. When the speed is lowered, the cutting wheel 130 starts to rotate at a high speed while the driving wheel 110 of the stone cutter 100 rotates.

When the driving wheel 110 rotates, the plurality of cutting wires 130 inserted into the cutting wire grooves 114 of the driving wheel 110 rotate at the same time.

As the stone cutter 100 continues to descend, the stone B starts to cut vertically. At this time, the forward and backward adjustment means (not shown) of the trolley 20 moves the trolley 20 at an appropriate speed in the forward direction. That is, when the cutting wire 130 starts cutting the stone B at the same time, the forward and backward adjusting means gradually advances the trolley 20. Then, when the cutting wire 130 reaches the middle portion of the stone B, the cart 20 is gradually moved backward. In this way, the round boundary stone A is completed.

Then, the completed round boundary stone (A) can be recut to an appropriate thickness to meet the place or specifications to be constructed.

According to the present invention, since a plurality of driven wheels 120 are installed and the cutting wires 130 are wound around each driven wheels 120, the stone cutter 100 moves as many times as many times as the number of driven wheels 120 when vertically moved. Type boundary stone (A) can be obtained at once. Therefore, by adjusting the spacing of the driven wheels 120 it is possible to manufacture a round boundary stone (A) of various thicknesses.

In addition, since the cutting wire grooves 114 are formed at various intervals on the outer circumferential surface of the driving wheel 110, the cutting wire 130 is installed by selecting the appropriate cutting wire groove 114 according to the specification of the boundary stone. It is possible to manufacture round boundary stones of.

In addition, according to the present invention, the tension adjusting means 150 of the stone cutter 100 is appropriately adjust the tension of each cutting wire 130 for cutting stone (B) by cutting the cutting wire 130 is excessive hardness The cutting wire 130 can be prevented from being broken in the process of cutting a large stone part.

That is, when the cutting wire 130 reaches the stone portion of which the hardness is excessively large, the rotation speed of the cutting wire is slowed and the load is applied to the cutting wire, thereby increasing the tension of the cutting wire 130 instantaneously. . The tension sensor instantly detects an increase in tension of the cutting wire 130 and controls the tension adjusting cylinder 155 to pull the hinge lever 153 so that the tension of the cutting wire 130 is reduced. In this case, the driven wheel 120 is moved toward the driving wheel 110 by the operation of the hinge lever 153, and as a result, the tension of the cutting wire 130 is loosened, and as a result, the stone portion of the stone part having excessively high hardness under normal tension is released. Cutting is smooth. At this time, the wound state of the cutting wire 130 by the upper wheel 151 and the lower wheel 152 is stably maintained.

Subsequently, when the cutting of the stone part having excessively large hardness is completed, the cutting wire 130 cuts the stone part having a relatively low hardness, so that the tension of the cutting wire 130 is momentarily loosened. The tension sensor detects instantaneous decrease in tension below a predetermined tension and controls to increase the tension of the cutting wire 130 by pushing the hinge lever 153 of the tension control cylinder 155. As a result, while the tension of the cutting wire 130 is restored to its original state, normal cutting is performed.

According to the round boundary stone manufacturing apparatus according to the present invention configured as described above can be expected the following effects.

First, since a plurality of driven wheels can be obtained in a single operation by constructing a plurality of driven wheels, manufacturability is improved and time and cost can be greatly reduced in cutting of the overall stone.

Second, by appropriately adjusting the tension of the cutting wire by sensing the stone of the stone to prevent damage to the cutting wire has an effect that can be smoothly performed stone cutting.

Third, since cutting wire grooves having various spacings are formed on the driving wheels, and correspondingly, the driven wheels are divided into a plurality of parts, there is an effect of manufacturing round boundary stones having different specifications in the same truck.

While the invention has been shown and described with respect to specific embodiments thereof, it will be understood that the invention can be variously modified and modified without departing from the spirit or scope of the invention as set forth in the following claims. It should be included in the scope of the invention.

Claims (6)

Guide rails installed on the floor, a pair of props vertically mounted on both sides of the guide rails, a stone cutter installed to be liftable through the support pillars, and a stone to be cut during the lifting operation of the stone cutters. In the round boundary stone manufacturing apparatus having a bogie for reciprocating a predetermined section along the guide rail in the raised state, The stone cutting machine A driving wheel installed on one side of the support so as to be elevated, A plurality of driven wheels which are installed on the other side of the support so as to be lifted and lowered, A plurality of cutting wires wound around each driven wheel via the driving wheel; Cutting wire tension adjusting means provided in the driven wheel, Round boundary stone manufacturing apparatus characterized in that it comprises a lifting means for lifting the drive wheel and the driven wheel together. The method of claim 1, The tension control means A hinge lever fixed on a rotation axis of each driven wheel; A hinge shaft on which the hinge levers are rotatably inserted; A plurality of tension control cylinders that adjust rotational tension of the cutting wire by applying rotational force to each hinge lever independently to change a phase of each driven wheel; An upper wheel and a lower wheel disposed between the driving wheel and the driven wheel to maintain a constant posture of the cutting wire when the driven wheel is changed in phase while being moved together with the driven wheel; And Round type boundary stone manufacturing apparatus comprising a tension sensor for controlling the operation of the tension control cylinder by sensing the tension of the cutting wire. The method of claim 1, Round boundary stone manufacturing apparatus, characterized in that the cutting wire groove corresponding to the driven wheel is formed along the circumferential direction on the outer peripheral surface of the drive wheel. The method of claim 3, wherein The cutting wire grooves are round boundary stone manufacturing apparatus, characterized in that formed at different intervals according to the specifications of the boundary stone to be processed. The method according to claim 1 or 3, The driving wheel is composed of a cylindrical drum constituting the body of the wheel, and the disc to partition the inside of the drum eccentrically in a direction perpendicular to the drive shaft of the drum, The disc is a round boundary stone manufacturing apparatus, characterized in that eccentrically fixed toward the drive shaft from the center line of the drum. The method of claim 5, Round disc boundary stone manufacturing apparatus, characterized in that the connecting portion of the disc and the drum formed rounded.

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