KR20060013724A - Feeding device of an apparatus for manufacturing sheets - Google Patents

Abstract

The present invention is a paper feed device 100 for conveying a stack of paper cut and laminated in advance to a predetermined size, and a paper cutting device for cutting a paper sheet conveyed by the paper feed device 100 to a predetermined dimension ( 200) and a panel sheet taking out device (300) for taking out the panel sheet by transferring the sheet sheet and waste paper cut from the paper by the sheet cutting device (200) from the sheet cutting device (200). The present invention relates to a sheet feeder in a sheet manufacturing apparatus. According to the present invention, the sheet feeder (100) includes a frame (110); A loading plate 120 for loading the paper 1 previously cut into a predetermined size; An adsorption unit (130) installed on the frame (110) to be capable of linear reciprocating motion and at the same time adsorbing one sheet of paper (1) loaded on the loading plate (120) to the sheet cutting device (200); A height adjusting unit (140) installed on the frame (110) to change the height of the stacking plate (120) by the height reduction of the stack of paper lowered as the paper (1) is transferred; There is provided a paper feed apparatus of the panel sheet manufacturing apparatus comprising a.

Panel sheet, paper, transfer, suction cylinder, suction plate, height adjustment

Description

Feeding device of an apparatus for manufacturing sheet sheet

1 is a front view of a panel sheet manufacturing apparatus according to the present invention,

2 is a plan view of a panel sheet manufacturing apparatus according to the present invention;

3 is a partial left side view of the apparatus for manufacturing a panel sheet according to the present invention;

Figure 4 is a perspective view of the sheet feeder of the panel sheet manufacturing apparatus according to the present invention,

5a to 5e is a view sequentially showing the operation of the adsorption unit of the paper transfer device,

6 is a view showing a height adjusting unit for adjusting the height of the paper stacked on the stacking plate in the paper transfer device.

The present invention relates to a paper feed apparatus of a manufacturing apparatus for manufacturing a sheet used in an LCD backlight unit.

In general, liquid crystal displays (hereinafter referred to as LCDs) used in display devices such as laptops, monitors, and liquid crystal televisions (TVs) can realize light weight, short size, and low power consumption compared to cathode ray tubes (CRTs), which are other image display apparatuses. There is an advantage, the demand is gradually increasing. However, unlike the cathode ray tube, the LCD is not a light emitting device but a light receiving device, and thus requires a backlight unit in addition to the LCD screen.

The backlight unit of the LCD is used as a dimming device to evenly transmit light to the entire panel, and the LCD panel displays an image by constantly adjusting the amount of light transmitted.

In a typical LCD, a backlight unit and a liquid crystal panel are arranged in a frame. A typical backlight unit includes a light source such as a cold cathode fluorescent lamp (CCFL), a light guide plate for scattering and homogenizing light emitted from the light source, and a panel sheet such as a diffusion sheet, a protective sheet, and a prism sheet disposed on the front surface of the light guide plate. And a reflecting plate disposed on a rear surface of the light guide plate to prevent the light generated from the light source from being exposed to the outside.

As described above, a plurality of panel sheets are stacked and used in one backlight unit, and the panel sheets are cut and made to have a predetermined size from original paper by the panel sheet manufacturing apparatus.

In the manufacture of a panel sheet having a predetermined size by cutting a sheet of paper by a cutting mold of a panel sheet manufacturing apparatus, a sheet feeding apparatus for picking sheets of sheets from a stack of stacked sheets of paper and transferring them to the cutting mold side is required. .

However, since the laminated paper has a problem that it is difficult to separate the sheets one by one due to the nature of the material, such as static electricity, two or three sheets of paper are transferred to the cutting mold at the same time when the paper is transferred by the conventional paper conveying device, or the paper which is attached at the same time is being transferred. There was a problem such as separation.

In addition, as the paper is transported, since the height of the stacked paper stacks is gradually lowered, there is a problem such that the distance between the suction sucker of the transfer device and the stacked paper becomes far and the adsorption is not made accurately.

As a result, when sheet sheet paper is continuously supplied to produce a sheet having a predetermined shape by a cutting mold, the sheet is not smoothly transported, which requires a lot of time and effort. There was a problem of deteriorating productivity such as lowering.

The present invention is to solve the problems as described above, an object of the present invention, there is provided with an adsorption unit so that the adsorption paper can be accurately separated one by one by bending the adsorption paper when adsorbed and lifted At the same time, the height is adjusted so that the distance between the stacked paper and the suction sucker can be maintained within a certain range by raising the loading plate loading the paper stack by the decrease of the paper stack that is reduced as the paper is transported. It is an object of the present invention to provide a paper conveying apparatus for a panel sheet manufacturing apparatus having a unit.

According to the present invention for achieving the above object, a paper conveying device for conveying a sheet of paper cut and laminated in advance to a predetermined size, a paper cutting device for cutting the original paper conveyed by the paper conveying device to a predetermined dimension And a panel sheet taking-out apparatus for conveying a panel sheet and waste paper cut out from the sheet by the sheet cutting apparatus from the sheet cutting apparatus to take out the panel sheet. The paper feed apparatus, the frame; A loading plate for loading the pre-cut paper into a predetermined size; An adsorption unit installed on the frame so as to linearly reciprocate and adsorb one sheet of paper loaded on the loading plate and transfer the sheet of paper to the sheet cutting device; A height adjusting unit installed in the frame to change the height of the stacking plate by a height decrease of the stack of paper lowered as the paper is transferred; There is provided a paper feed apparatus of the panel sheet manufacturing apparatus comprising a.

In addition, the adsorption unit includes a guide rail installed on the frame and extending up to the paper cutting device, an adsorption frame linearly reciprocating along the guide rail by a driving means, and a first adsorption to the adsorption frame. A first adsorption plate connected through a cylinder, and second and third adsorption plates connected to the first adsorption plate through second and third adsorption cylinders, wherein at least one or more surfaces of each of the first to third adsorption plates are provided. It is preferable that the suction suckers are arranged.

In addition, the height adjustment unit is driven by the control of the control unit in accordance with the detection result of the ground height detection sensor and the ground height detection sensor capable of detecting the height of the paper loaded on the stacking plate Apparatus and a moving device for moving the loading plate in the vertical direction by the drive device, the drive device preferably comprises a motor and a reducer.

Here, the moving device includes a drive sprocket receiving the rotational force of the motor through a reduction gear, a driven sprocket, a chain wound between the drive sprocket and the driven sprocket, and the loading plate to the movement of the chain. It may be made of a connecting member connected to interlock, the moving device is provided on each of the left and right sides of the paper transfer device, each of the rotational force of the motor is transmitted only to the driving sprocket of one side, the driving sprocket of the other side is driven on one side Preferably, the rotational force is transmitted by the shaft member extending integrally from the shaft of the sprocket.

In addition, the moving device includes a pinion receiving the rotational force of the motor through a reducer, a rack moving up and down as the pinion rotates to move a loading plate fixed at one end thereof, and simultaneous movement of the loading plate. It may include one or more guide rods are installed so that shaking does not occur.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the sheet feeder of the panel sheet manufacturing apparatus according to the present invention.

1 and 2 are a front view and a plan view of a panel sheet manufacturing apparatus equipped with a paper feed apparatus of the present invention. 3 is a left side view of the apparatus for producing a sheet sheet, in which only a part of the paper sheet conveying device is shown. And, Figure 4 is a perspective view of the paper transfer apparatus mounted to the panel sheet manufacturing apparatus.

1 and 2, the panel sheet manufacturing apparatus has been conveyed by a sheet feeding apparatus 100 and a sheet feeding apparatus 100 for transferring a sheet of paper cut and stacked in advance to a predetermined size. A sheet cutting device 200 for cutting a sheet of paper to a predetermined dimension, and a panel sheet and waste paper cut from the sheet of paper by the sheet cutting device 200 are transported from the sheet cutting device 200 to take out the panel sheet. It comprises a panel sheet taking out device (300).

As shown in FIGS. 1 to 4, the paper feed apparatus 100 includes a frame 110, a stacking plate 120 for loading a paper 1 previously cut to a predetermined size, and the frame ( The suction unit 130 and the frame which are installed to be capable of linear reciprocating motion on the 110 and at the same time absorbs the sheet of paper 1 loaded on the loading plate 120 to the sheet cutting device 200, and the frame ( It is installed on the 110 and includes a height adjusting unit 140 for changing the height of the stacking plate 120 by the height reduction of the paper stack lowered as the paper 1 is transferred.

The paper 1 loaded on the loading plate 120 is supported by the position fixing member 150 so that the stacked state thereof is not disturbed. At least one position fixing member 150 is provided in each of four directions of the paper stack. The position fixing member 150 is fixed to the frame 110, but is preferably configured to be adjustable according to the dimensions of the base paper (1). That is, as shown in Figure 4, each of the position fixing member 150 is configured to be able to adjust the height in the vertical direction by loosening the tightening screw 151 and at the same time to move in the approach direction or the separation direction toward the base. It is desirable to be constructed.

As shown in FIGS. 1 to 4, the adsorption unit 130 is installed on the frame 110 and extends up to the paper cutting device 200. An adsorption frame 132 linearly reciprocating along the guide rail 131 by a driving means, a first adsorption plate 133a connected to the adsorption frame 132 through a first adsorption cylinder 135a, and the first The first and second adsorption plates 133b and 133c connected to the first adsorption plate 133a through the second and third adsorption cylinders 135b and 135c are included.

At least one suction sucker 134 is arranged on the lower surface of each of the first to third suction plates 133a, 133b, and 133c. The suction sucker 134 periodically receives the vacuum generated by a vacuum generator (not shown) provided separately from the suction unit 130 to suck the base paper.

In order to reciprocate the suction frame 132 on the guide rail 131, a drive means by a chain or belt can be used, and in particular, by using a drive means by a chain can accurately reciprocate a certain distance desirable.

The first adsorption cylinder 135a is connected between the adsorption frame 132 and the first adsorption plate 133a to move the first adsorption plate 133a in the up and down direction with respect to the adsorption frame 132. Can be. In addition, one or more guide rods 136 may be installed to guide the linear movement of the first suction plate 133a with respect to the suction frame 132.

The second adsorption cylinder 135b is connected between the first adsorption plate 133a and the second adsorption plate 133b to move the second adsorption plate 133b relative to the first adsorption plate 133a. Can be installed. Similarly, the third adsorption cylinder 135c is connected between the first adsorption plate 133a and the third adsorption plate 133c to move the third adsorption plate 133c relative to the first adsorption plate 133a. One or more may be installed. Here, the second and third suction plates are configured to reciprocate in the same direction and by the same distance from each other.

Hereinafter, referring to FIGS. 5A to 5E, a process of adsorbing the base 1 by the adsorption unit 130 will be described.

As shown in FIG. 5A, in the initial state, the first adsorption cylinder 135a is in a contracted state and the second and third adsorption cylinders 135b and 135c are in an extended state, and thus, the first to third adsorption plates 133a. , 133b, 133c are held on the same plane.

In order to adsorb the base paper in such an initial state, as shown in FIG. 5B, first, the first adsorption cylinder 135a is extended so that the first to third adsorption plates 133a, 133b, and 133c are lowered integrally. It is close to the upper surface of 1). In this state, a vacuum is introduced into the suction sucker 134 to suck the paper 1 loaded thereon. At this time, although the base paper 1 to be adsorbed was laminated on the uppermost layer, two or three sheets of base paper 1 are lifted up by the suction sucker 134 at a time due to static electricity or the like.

Subsequently, as shown in FIG. 5C, the first adsorption plate 133a is maintained in a lowered state, and the second and third adsorption cylinders 135b and 135c are simultaneously contracted so that the second and third adsorption plates 133b, Only 133c is raised. At this time, as the paper 1 adsorbed on the suction sucker 134 is bent, the remaining papers except the one sheet of paper 1 adhered to the suction sucker 134 are separated and separated.

In the state where only one sheet of paper is adsorbed, as shown in FIG. 5D, the first adsorption cylinder 135a is contracted to raise the first adsorption plate 133a, and accordingly the second and third adsorption plates 133b and 133c. ) Are raised together.

When the raising of the first suction plate 133a is completed, as shown in FIG. 5E, the second and third suction cylinders 135b and 135c are extended to lower the second and third suction plates 133b and 133c. Accordingly, the first to third suction plates 133a, 133b, and 133c are returned to the initial state on the same plane. In this state, the suction frame 132 is moved along the guide rail 131 to transfer the absorbed paper 1 toward the paper cutting device 200. After the transfer, the adsorption unit 130 returns to the state as shown in FIG. 5A and repeats the operation.

In the present specification and drawings, three adsorption plates 133a, 133b, and 133c are included and illustrated in the adsorption unit 130, but the present invention is not limited to the number or shape of the adsorption plates.

As shown in Figures 1 to 4, the height adjustment unit 140, a paper height detecting sensor 141 that can detect the height of the paper 1 loaded on the loading plate 120; 6), a driving device (not shown) selectively driven by the control of a controller (not shown) according to the detection result of the ground height detecting sensor 141, and the loading plate 120 by the driving device. It includes a moving device for moving in the vertical direction.

An optical sensor or the like may be used as the ground height sensor 141. The detection result from the ground height sensor 141 is transmitted to a controller (not shown) to determine whether to drive the driving device.

The drive device consists of a motor and a reducer, and the rotation of the motor is appropriately decelerated in the reducer to precisely control the movement of the mover.

The moving device is a chain 163 wound between the drive sprocket 161a, the driven sprocket 162a, and the drive sprocket 161a and the driven sprocket 162a, which receive the rotational force of the motor through the speed reducer. ), And a connecting member 134 connected to connect the loading plate 120 to the movement of the chain 163.

Here, as shown in Figure 4, the moving device is preferably provided on each of the left and right sides of the paper transfer device 100, respectively. At this time, the rotational force of the motor is transmitted only to the driving sprocket 161a of one side, and the driving sprocket 161b of the other side transmits the rotational force by the shaft member 165 integrally extending from the axis of the driven sprocket 162a of one side. It is desirable to have a receiving configuration. The member number 162b which is not described in FIG. 3 is the driven sprocket on the other side to which the chain 163 is wound in cooperation with the driving sprocket 161b on the other side.

6 shows a modified embodiment of the height adjustment unit 140. Since the height adjusting unit according to the modified embodiment has a different structure from only the moving device as compared with the height adjusting unit 140 according to the above-described embodiment, only a description of the moving device having the different structure is made here. .

As shown in FIG. 6, the moving device according to the modified embodiment uses the rack 172 and the pinion 173 instead of using the chain transmission means, according to the detection result of the ground height detecting sensor 141. When the driving device is driven, the pinion 173 rotates in the housing 171 to move the rack 172 in the vertical direction, thereby moving the loading plate 120 fixed to one end of the rack 172. It is.

Here, it is preferable that the moving device according to the modified embodiment includes one or more guide rods 174 so that simultaneous shaking of the loading plate 120 does not occur.

As described above, according to the present invention, when the base paper is adsorbed and lifted up, the base paper is provided with an adsorption unit so that the base paper adsorbed by bending and adsorbing the base paper can be accurately separated one by one, and the base paper reduced as the base paper is transferred. The paper transfer of the panel sheet manufacturing apparatus equipped with the height adjusting unit which maintains the distance between the stacked paper and the suction sucker within a certain range by raising the loading plate loading the paper stack by the decrease of the stack. An apparatus is provided.

As a result, it is possible to accurately separate and convey each sheet of paper that is difficult to separate by static electricity or the like due to the characteristics of the material, and even if the height of the stacked stack of paper decreases gradually as the paper is transferred, As the height of the lower the loading plate is raised so that the adsorption can be made accurately.

As described above, according to the present invention, the sheet is smoothly transported, thereby reducing the time and effort required for the work, and at the same time improving the precision of the panel sheet cutting operation, thereby increasing productivity.

Claims (5)

A paper feed device 100 for conveying paper sheets cut and stacked in advance to a predetermined size, a paper cutting device 200 for cutting the paper sheets conveyed by the paper feed apparatus 100 to a predetermined dimension; In the panel sheet manufacturing apparatus comprising a panel sheet taking out device (300) for taking out the panel sheet by receiving the panel sheet and waste paper cut from the paper by the paper cutting device 200 from the paper cutting device (200) As the paper feed device in the paper, the paper feed device 100, A frame 110; A loading plate 120 for loading the paper 1 previously cut into a predetermined size; An adsorption unit (130) installed on the frame (110) to be capable of linear reciprocating motion and at the same time adsorbing one sheet of paper (1) loaded on the loading plate (120) to the sheet cutting device (200); A height adjusting unit (140) installed on the frame (110) to change the height of the stacking plate (120) by the height reduction of the stack of paper lowered as the paper (1) is transferred; Paper sheet feeder of the panel sheet manufacturing apparatus comprising a. The method of claim 1, The adsorption unit 130 is installed on the frame 110, the guide rail 131 extending up to the paper cutting device 200 and the linear reciprocating along the guide rail 131 by a drive means The adsorption frame 132 that moves, the first adsorption plate 133a connected to the adsorption frame 132 through the first adsorption cylinder 135a, and the second and third adsorption cylinders (the first adsorption plate 133a) And second and third suction plates 133b and 133c connected through the 135b and 135c, At least one suction sucker 134 is arranged on the lower surface of each of the first to third suction plates 133a, 133b, and 133c. The method of claim 1, The height adjustment unit 140, the height detection sensor 141 and the ground height detection sensor 141 that can detect the height of the paper 1 loaded on the stacking plate 120, A driving device selectively driven by the control of the controller according to the result, and a moving device for moving the loading plate 120 in the vertical direction by the driving device. From here, The drive device is composed of a motor and a reducer, The moving device is a chain 163 wound between the drive sprocket 161a, the driven sprocket 162a, and the drive sprocket 161a and the driven sprocket 162a, which receive the rotational force of the motor through the speed reducer. ), And the sheet conveying device of the panel sheet manufacturing apparatus, characterized in that consisting of a connecting member 134 connected to interlock the movement of the chain 163 to the loading plate (120). According to claim 3, The moving device is provided on each of the left and right sides of the paper transfer device 100, each of the rotational force of the motor is transmitted only to the drive sprocket 161a of one side, the drive sprocket 161b of the other side The paper sheet transfer apparatus of the panel sheet manufacturing apparatus, characterized in that the rotational force is transmitted by the shaft member 165 integrally extending from the shaft of the driven sprocket (162a) of one side. The method of claim 1, The height adjustment unit 140, the height detection sensor 141 and the ground height detection sensor 141 that can detect the height of the paper 1 loaded on the stacking plate 120, A driving device selectively driven by the control of the controller according to the result, and a moving device for moving the loading plate 120 in the vertical direction by the driving device. From here, The drive device is composed of a motor and a reducer, The moving device includes a pinion 173 that receives the rotational force of the motor through a speed reducer, and a rack for moving the loading plate 120 fixed to one end by moving up and down as the pinion 173 rotates. 172), and the sheet conveying device of the panel sheet manufacturing apparatus, characterized in that it comprises one or more guide rods (174) which are installed so that the simultaneous shaking of the loading plate (120) does not occur.

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