KR20070106073A - Belt type transfer - Google Patents

Abstract

A belt type transfer is provided to prevent generation of drive error due to bidirectional drive and prevent separation of a belt, thereby increasing conveyance reliability. A belt type transfer includes a first support pulley(46), a second support pulley(47), a belt(49), a first drive pulley(42), a second drive pulley(43), a first motor(40) and a second motor(41). The belt is supported by the first support pulley and the second support pulley. The first drive pulley is connected to one end of the belt. The second drive pulley is connected to the other end of the belt. The first motor and the second motor drives the first drive pulley and the second drive pulley respectively. The first motor and the second motor are controlled by a controller. The belt is a plain belt or a timing belt.

Description

Belt Type Transfer Device {Belt Type Transfer}

1 is a perspective view for explaining a conventional belt transfer device.

Figure 2 is a front view for explaining another belt transfer apparatus of the prior art.

Figure 3 is a front view for explaining the structure of a conventional belt transfer device.

Figure 4 is a front view for explaining a first embodiment of the belt type transfer apparatus according to the present invention.

5 is a block diagram for explaining a first embodiment of the belt type transfer apparatus according to the present invention.

6 is a front view for explaining a second embodiment of the belt type transfer apparatus according to the present invention.

7 is a front view for explaining a third embodiment of the belt type transfer apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

40: first motor 41: second motor

42: first drive pulley 43: second drive pulley

46: first support pulley 47: second support pulley

49: belt 50: control unit

52: first driving unit 53: second driving unit

The present invention relates to a belt type transfer apparatus, and more particularly, to a belt type transfer apparatus capable of precise transfer while driving the conveyor belt in both directions.

In general, the transfer of panels (glass substrates, etc.) involved in the manufacturing process of liquid crystal displays (LCDs) is carried out in the plate glass cutting tool and trimming apparatus of Patent Publication No. 10-2003-10503 published on February 5, 2003. And a conveying apparatus using a belt introduced in a cutting apparatus of Patent Publication No. 10-2004-10045 published on January 31, 2004, and the like.

That is, the conventional conveying apparatus shown in FIG. 1 transfers to the trimming apparatus consisting of the cutting part 13, the support part 14, the positioning part 15, etc. in order to trim the glass substrate 16, The said glass substrate In order to convey the 16 to the trimming device, a conveying belt 11 having a flat belt structure is used, and the conveyance of the glass substrate 16 in the trimming device is performed by a plurality of work belts 12 having a flat belt structure. )

In addition, another conventional conveying apparatus shown in FIG. 2 transfers the glass substrate 20 using the belt type conveyor 21, and transfers the glass substrate 20 to the conveyor 21 of the cutting device from the A position to the B position. In the state in which the glass substrate 20 is fixed using the reference numeral 25, the cutting portion 22 is cut using the support part 22, the pressing part 23, and the cutting part 24.

In addition, the conveying apparatus of the conventional flat belt structure made as described above, because it is impossible to transfer the glass substrate to the correct position, but is not shown in the drawing auxiliary but to determine the position of the glass substrate using a separate position sensor, etc. Is common.

However, since the transfer apparatus of the conventional flat belt structure made as described above uses the flat belt, the positioning is incomplete due to the sliding phenomenon between the belt and the pulley and the positional change of the substrate due to the vibration generated during the transfer. There is a problem that it is impossible to transfer the glass substrate.

On the other hand, the conventional belt type conveying apparatus as shown in Figs. 1 and 2 is a belt that is typically mounted between two pulleys, that is, the first pulley 30 and the second pulley 32, as shown in FIG. 36, at least one of the first pulley 30 and the second pulley 32 is composed of a motive pulley, the other is composed of a driven pulley.

In addition, since the belt 36 must be capable of infinite rotation in a state in which the belt 36 is mounted on the first pulley 30 and the second pulley 32, both ends thereof are coupled to the joint portion 38 to form a closed loop.

By the way, the joint portion 38 is made of a thickness thicker than the thickness of the belt 36 because it is coupled with a rivet 39 or a screw to be coupled to both ends of the belt 36.

Therefore, when the joint portion 38 passes through the first pulley 30 or the second pulley 32, there is a problem in that vibration occurs and a traveling error occurs.

In addition, the first pulley 30 and the second pulley 32 are fixed at a designated position, and the belt 36 has a predetermined length to the first pulley 30 and the second pulley 32. Since it is mounted, it is actually slightly loosened.

In order to solve such a loose mounting state, in the related art, since the tension pulley 34 is used to push the belt 34 to one side, the structure is complicated according to the tension pulley mounting.

In addition, a belt used in a conveyor belt typically uses a flat belt and a flat pulley, which may result in a detachment of the belt, a shift error due to a sliding phenomenon between the belt and the pulley, and a strong resistance to the joint. There was a problem in that an operation error occurred due to the phenomenon that the belt is broken due to tension.

SUMMARY OF THE INVENTION An object of the present invention is to provide a belt-type conveying device which does not generate a driving error while being driven in both directions.

Further, another object of the present invention is to provide a belt type transfer device that improves the transfer reliability by preventing the belt separation and belt cutting in the belt transfer device.

The present invention to achieve the above object, the first pulley; A second pulley installed opposite to the first pulley; A third pulley installed on one side of the first pulley; A fourth pulley installed on one side of the second pulley; A belt having one end connected to the third pulley and supported by the first pulley and the second pulley so that the other end is connected to the fourth pulley; A first motor driving the third pulley; A second motor for driving the fourth pulley; And a control unit for driving the first motor or the second motor according to the conveying direction of the belt.

The belt is characterized in that the flat belt.

The belt is characterized in that the timing belt.

The first motor and the second motor is characterized in that the motor capable of forward and reverse rotation.

The first motor and the second motor is characterized in that the rotational speed is synchronized to rotate in the opposite direction.

The first motor and the second motor is characterized in that the motor having a torque output stronger than the tension due to the load applied to the belt.

The first motor and the second motor is characterized in that the electric motor.

The first motor and the second motor is characterized in that the hydraulic or pneumatic motor.

The first motor and the second motor is characterized in that the servo motor capable of controlling the rotation speed and rotation angle.

The control unit may further include a first driving unit and a second driving unit driving the first motor and the second motor, respectively.

And at least one fifth pulley installed between the first pulley and the second pulley to support the belt.

And at least one belt support means installed between the first pulley and the second pulley to support the belt.

(Example)

With reference to the accompanying drawings showing a preferred embodiment of the present invention with respect to the belt-type transfer apparatus according to the present invention will be described in detail.

4 is a front view for explaining a first embodiment of the belt type transfer apparatus according to the present invention, and FIG. 5 is a block diagram for explaining a first embodiment of the belt type transfer apparatus according to the present invention; 6 is a front view for explaining a second embodiment of the belt type transfer apparatus according to the present invention.

1. First embodiment (see Figs. 4 and 5)

As shown in Figs. 4 and 5, the first embodiment of the present invention is provided with a first support pulley 46 and a second support pulley 47 and a first support pulley 46, which are installed at a distance apart from the conveying object. And the belt 49 supported by the second support pulley 47, the first driving pulley 42 to which one end of the belt 49 is connected, and the second drive to which the other end of the belt 49 is connected. It consists of a pulley (43), a first motor (40) for driving the first drive pulley (42), and a second motor (41) for driving the second drive pulley (43).

The first motor 40 and the second motor 41 are controlled by the controller 50.

The belt 49 may be composed of a flat belt or a timing belt. Accordingly, the first support pulley 46 and the second support pulley 47 and the first drive pulley 42 and the second drive pulley 43 ) Should also consist of a flat pulley or a timing pulley.

The first motor 40 and the second motor 41 may be implemented as an electric motor, a hydraulic motor, or a pneumatic motor capable of forward and reverse rotation, but may be implemented as a servo motor capable of fine control of speed and rotation angle. desirable.

The controller 50 drives the first motor 40 and the second motor 41 through the first driver 52 and the second driver 53, respectively.

In this case, the control unit 50 is rotated in the opposite direction to each other while maintaining the same rotational speed of the first motor 40 and the second motor 41 in order to transfer the belt 49 in any direction. The first driving unit 52 and the second driving unit 53 must be controlled.

To this end, the first motor 40 and the second motor 41 should be composed of a stepping motor capable of precisely controlling the rotation speed.

In addition, since the first motor 40 and the second motor 41 must transfer an object through the belt 49, a torque output stronger than the tension applied to the belt 49 by the load of the object. It must be implemented by a motor having an accurate feed.

The first embodiment of the present invention configured as described above operates as follows.

First, after mounting the object to be transferred to the belt 49, the control unit 50 through the first driving unit 52 and the second driving unit 53 in the conveying direction (for example, the left direction in Figure 4) The first motor 40 is rotated in the clockwise direction and at the same time the second motor 41 is rotated in the counterclockwise direction so that the belt 49 is released from the second drive pulley 43. It is wound around 1 drive pulley 42 and conveyed.

Of course, in the case of being transferred in the opposite direction, the first motor 40 and the second motor 41 are driven in the opposite direction so that the conveying direction of the belt 49 is reversed.

As described above, since the first motor 40 and the second motor 41 rotate to match the transport distance of the belt 49, the transport distance of the belt 49 is always accurately controlled.

In addition, since the belt 49 is not a conventional closed loop type, a phenomenon in which the belt 49 is separated during the transfer is prevented.

In addition, since the belt 49 is not a conventional closed loop method requiring a joint, there is no transfer error phenomenon due to the joint.

2. Second embodiment (see Fig. 6)

As shown in FIG. 6, the second embodiment of the present invention includes the same components as those of the first embodiment of FIGS. 4 and 5, between the first support pulley 46 and the second support pulley 47. The third support pulley 48 is installed to prevent the belt 49 from sagging downward.

Here, although only one third support pulley 48 is shown in FIG. 6, an appropriate number may be additionally arranged according to the distance between the first support pulley 46 and the second support pulley 47.

7. Third embodiment (see Fig. 7)

The third embodiment of the invention comprises the same components as the first embodiment of FIGS. 4 and 5, as shown in FIG. 7, between the first support pulley 46 and the second support pulley 47. At least one belt support means 60 is installed to prevent the belt 49 from sagging downward.

Here, the at least one belt support means 60 is a conventional plate plate, but only one is shown, but an appropriate number is additionally arranged according to the distance between the first support pulley 46 and the second support pulley 47. can do.

The third embodiment of the present invention configured as described above is driven in the same manner as the operation description of the first embodiment, provided that the at least one belt supporting means is provided when an object of a load that is heavier than the tension of the belt 49 is transferred. Since the belt 49 is supported, the belt 49 is prevented from sagging downward due to the load of an object.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

The present invention made as described above provides an effect of preventing the belt from sagging by the load of the object by driving the two ends of the belt for transporting the object individually by using a synchronized motor.

In addition, the present invention provides an effect of eliminating the phenomenon of being separated from the pulley and the transfer error due to the cutting of the belt because it directly drives both ends of the belt.

Claims (12)

First pulley; A second pulley installed opposite to the first pulley; A third pulley installed on one side of the first pulley; A fourth pulley installed on one side of the second pulley; A belt having one end connected to the third pulley and supported by the first pulley and the second pulley so that the other end is connected to the fourth pulley; A first motor driving the third pulley; A second motor for driving the fourth pulley; And A controller for driving the first motor or the second motor according to the conveying direction of the belt; Belt type transfer device comprising a. The method of claim 1, Belt type conveying apparatus, characterized in that the belt is a flat belt. The method of claim 1, And the belt is a timing belt. The method of claim 1, And said first motor and said second motor are motors capable of forward and reverse rotation. The method of claim 1, The first motor and the second motor is a belt-type transfer device, characterized in that the rotational speed is synchronized with each other to rotate in opposite directions. The method of claim 1, And the first motor and the second motor are motors having a torque output stronger than the tension caused by the load applied to the belt. The method of claim 1, And said first motor and said second motor are electric motors. The method of claim 1, And said first motor and said second motor are hydraulic or pneumatic motors. The method of claim 1, And the first motor and the second motor are servo motors capable of controlling rotation speed and rotation angle. The method of claim 1, The control unit further comprises a first drive unit and a second drive unit for driving the first motor and the second motor, respectively. The method of claim 1, And at least one fifth pulley installed between the first pulley and the second pulley to support the belt. The method of claim 1, And at least one belt support means installed between the first pulley and the second pulley to support the belt.

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