KR20160008495A - Sheet material supplying device - Google Patents

Abstract

A pair of gripping means 5 and 6 for gripping both end portions in the width direction of the sheet material 4 formed by cutting the strip-shaped sheet material 1 to a predetermined length, and a pair of gripping means 5 and 6 And a pair of guide members 12 for movably supporting the sheet material 4 between the cutting position and the feeding position of the sheet material 4. Each of the guide members 12 is suspended from the girder 20 of the building.

Description

[0001] SHEET MATERIAL SUPPLYING DEVICE [0002]

The present invention relates to a sheet material feeding device for feeding a sheet material to the surface side of a glass sheet and arranging the sheet material for alternately stacking a glass sheet and a sheet material on a pallet.

There is a case where a glass plate is stacked in a vertically arranged state on a pallet for transportation or storage of a glass plate as in the known art. In this case, a sheet material as a buffer material or a spacer is interposed between the glass plates for the purpose of preventing the occurrence of scratches caused by direct contact between the glass plates and preventing breakage of the glass plate during transportation. Thus, a glass plate laminate is formed on the pallet by alternately arranging the glass plate and the sheet member.

In addition, it is a common practice to use a dedicated device because the operation of placing the sheet material so as to overlap the surface side (exposed surface side) of the glass plate on the pallet is limited by manual operation.

Patent Document 1 discloses a method of pulling out a belt-shaped sheet stock material from a raw material roll, grasping both end portions in the width direction of the sheet raw material with grasping means, cutting the sheet material after the cutting, And a sheet material feeding device for arranging the held sheet material on the front surface side of a glass plate vertically arranged on a pallet.

Japanese Patent Application Laid-Open No. 2012-35988

However, in Patent Document 1, since the supporting member for supporting the holding means of the sheet material extends from the bottom surface on which the pallet or the like is mounted, the occupation space of the bottom surface of the sheet material supplying device necessarily becomes large.

Particularly, in the case of coping with the packing of various sizes of glass sheets, it is necessary to separately provide a dedicated sheet material feeding device corresponding to each of the sheet materials having different widths, so that the occupation space of the bottom surface becomes remarkable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a sheet material supply apparatus capable of reducing the space occupied by the bottom surface as much as possible.

In order to solve the above problems, the present invention provides a glass sheet laminate comprising a glass sheet and a sheet material stacked alternately in a vertical posture on a pallet, And the sheet material after the cutting is moved to the feeding position to be disposed on the front surface side of the glass sheet. The sheet material feeding device includes a pair of holding means for gripping both end portions in the width direction of the sheet material, And a pair of guide members for movably supporting the guide member between the cutting position and the feeding position, wherein the guide members are suspended from the fixing system above the pallet.

According to this configuration, the holding means for holding the sheet material is supported by a guide member suspended above the pallet from the fixed system. Then, in this state, when the holding means is reciprocated between the cutting position and the feeding position, the sheet material can be supplied to the surface of the glass plate on the pallet and arranged. Therefore, the sheet material can be supplied in a state in which the guide member and the gripping means are separated from the floor surface, so that the occupied area of the floor surface can be suppressed to be small.

In the above configuration, it is preferable that the fixing system is a structure of a building located above the pallet.

In this way, a building structure such as a ceiling or a girder that easily becomes a dead space can be effectively used. Also, since the structure of the building is rigid, it is suitable as a fixed system.

In the above configuration, it is preferable that at least one of the pair of guide members is movable in the width direction with respect to the fixation system.

In this way, the same sheet material supply device can cope with a wide variety of sheet materials having different widths. Therefore, it is not necessary to separately provide a dedicated sheet material feeding device according to the width of the sheet material, so that the space on the bottom surface can be further reduced.

In the above configuration, it is preferable that the guide members are movable in the forward and backward directions with respect to the fixation system.

In this way, the forward and backward positions of the gripping means can be adjusted by the movement of the guide member in the longitudinal direction. Therefore, even if the lamination position of the glass plate on the forefront face side is changed by the alternate arrangement of the vertically disposed glass plate and the sheet member, the positional relationship between the glass plate and the holding means can be always kept constant. Therefore, it is possible to continue supplying the sheet material stably to the surface of the glass sheet existing on the foremost surface side.

In the above configuration, a plurality of pairs of the gripping means and the guide members may be provided in the width direction, and a plurality of the sheet materials may be supplied to different positions of the single pallet or a plurality of the pallets.

In this way, a plurality of sheet materials can be supplied and arranged at the same time.

In the above configuration, the auxiliary guide member can be vertically movable along the guide members, and the holding means can be provided so as to be movable in the front-rear direction along the auxiliary guide member.

In this way, by moving the holding means along the auxiliary guide member in the forward and backward directions, it is possible to finely adjust the positions of the holding means in the forward and backward directions in accordance with the deformation of the pallet or the number of stacked sheets of the glass plate laminate, thereby realizing accurate supply of the sheet material. In this case, since the gripping means is supported by the guide member through the auxiliary guide member, the movement of the gripping means in the vertical direction can be realized by moving the auxiliary guide member along the guide member in the vertical direction.

(Effects of the Invention)

As described above, according to the present invention, the occupied area of the bottom surface can be reduced as much as possible, since the guide member for supporting the holding means for holding the sheet material is suspended from the fixing system above the pallet.

1 is a perspective view showing a sheet material supplying apparatus according to a first embodiment of the present invention.
Fig. 2 is a perspective view partially showing the sheet material supply device according to the first embodiment. Fig.
3 is a side view showing the sheet material supply device according to the first embodiment.
Fig. 4 is a perspective view for explaining the operation of the sheet material supply device according to the first embodiment. Fig.
Fig. 5 is a perspective view for explaining the operation of the sheet material supply device according to the first embodiment. Fig.
Fig. 6 is a perspective view for explaining the operation of the sheet material supply device according to the first embodiment. Fig.
Fig. 7 is a perspective view for explaining the operation of the sheet material supply device according to the first embodiment. Fig.
8 is a perspective view showing a sheet material supply apparatus according to a second embodiment of the present invention.
9 is a perspective view showing a sheet material supply device according to a third embodiment of the present invention.

The present invention will be described with reference to the accompanying drawings. In the following embodiments, a case of alternately arranging the glass sheet and the sheet material in a vertical arrangement on a pallet will be described.

≪ First Embodiment >

As shown in Fig. 1, the sheet material feeding device according to the first embodiment of the present invention comprises a raw material roll 2 formed by winding a strip-shaped sheet raw material 1 from the upstream side into a roll form, A cutting means 3 for cutting the stripped sheet raw material 1 drawn out at its downstream end and a pair of upper end portions 4a and 4b disposed below the cutting means 3 for gripping the cut sheet material 4, A gripping means 5 and a pair of lower gripping means 6 are provided.

A variety of rolls are arranged in the path from the raw material roll 2 to the cutting means 3 in order to smoothly feed and convey the strip-shaped sheet raw material 1. [ A pulling nip roll 7 for gripping and pulling the raw material roll 1 from the raw material roll 2 in order from the upstream side and a dancer for adjusting the drawn dimension of the strip raw material 1 to a certain range, A roll 8 and a plurality of guide rolls 9 for guiding the band-shaped sheet stock 1 along a desired path and a plurality of guide rolls 9 for holding the belt- And a delivery nip roll 10 for delivery is arranged.

A pair of upper gripping means 5 and a pair of lower gripping means 6 for gripping both end portions in the width direction of the sheet material 4 after cutting are sandwiched by both end portions in the width direction of the sheet material 4, And clamping mechanisms 5a and 6a.

Each of the holding means 5 and 6 is supported by a guide member 12 disposed in each of the widthwise side walls of the pallet 11. Each guide member 12 is an elongated body extending vertically and is suspended from a base portion 13 disposed above the pallet 11.

The base portion 13 is divided into two portions above and below the first base portion 14 and the second base portion 15.

2, the second base portion 15 is slidably supported on a rail 16 extending in the front-rear direction provided on the lower surface of the first base portion 14. As shown in Fig. As a result, when the second base 15 is moved back and forth with respect to the first base 14, the guide 12 moves forward and backward together with the second base 15. In this case, the forward and backward positions of the gripping means 5, 6 are consequently adjusted by the movement of the guide member 12 in the longitudinal direction. Therefore, even if the lamination position of the glass plate 17 on the forefront face changes due to the progressive arrangement of the glass plate 17 and the sheet material 4 arranged vertically on the pallet 11, (5, 6) can be kept constant.

The guide member 12 is slidably supported on a rail 18 extending in the width direction (left and right horizontal direction) provided on the front surface of the second base 15. [ That is, the guide member 12 is supported so as to be movable in the width direction along the rail 18 of the second base 15. This makes it possible to adjust the positions of the holding means 5 and 6 with respect to the sheet material 4 which has been newly changed even when it is necessary to change the sheet material 4 having different widthwise dimensions.

The driving mechanism of the second base 15 is a ball screw mechanism having a motor 15a and a ball screw 15b and the second base 15 is rotated by rotating the ball screw 15b with the motor 15a, Are moved back and forth along the rails (16) of the first base (14). The driving mechanism of the guide member 12 is also a ball screw mechanism having a motor 12a and a ball screw 12b and the ball 12b is rotated by the motor 12a so that the guide member 12 And is configured to move along the rails 18 of the second base 15 in the width direction. The drive mechanism is not limited to the ball screw mechanism, and may be configured by a rack and pinion mechanism, a belt transmission mechanism, a linear motor, or the like.

On the rear surface of the guide member 12 is provided a rail 19 extending in the vertical direction and the main body portions 5x and 6x of the upper gripping means 5 and the lower gripping means 6 Is slidably supported. That is, each of the holding means 5, 6 is supported so as to be movable up and down along the rail 19 of the guide member 12.

The drive mechanism of the upper gripping means 5 includes a drive wheel 5b and a follower wheel 5c which are formed on the back surface portion of the guide member 12 and are spaced apart from each other in the vertical direction, And a motor 5e for rotationally driving the drive wheel 5b. The belt 5d is a belt conveying mechanism having an endless belt 5d made up of a wound timing belt or the like, (5f) is fixed to the endless belt (5d). The drive mechanism of the lower grip means 6 also has a drive wheel 6b and follower wheels 6b and a driven wheel 6c formed of a timing pulley and the like provided on the rear face portion of the guide member 12 in the vertical direction, And a motor 6e for rotationally driving the drive wheel 6b. The main body 6x of the lower holding means 6 is a belt conveying mechanism including a belt 6d, Is fixed to the endless belt 6d. Each of the motors 5e and 6e rotatably drives the drive wheels 5b and 6b so that the endless belts 5d and 6d are wound and driven so that each of the holding means 5 and 6 is moved up and down As shown in FIG. All of the motors 5e and 6e can be adjusted in rotational speed. The driving mechanism is not limited to the belt transmission mechanism, but may be a rack-and-pinion mechanism, a ball screw mechanism, a linear motor, or the like.

As shown in Fig. 3, the first base portion 14 is fixed to the girder 20, which is a structure of the building. That is, the guide member 12 is suspended from the girder 20 constituting the fixed system through the first and second base portions 14 and 15. Therefore, the guide member 12 can maintain its posture while being separated from the bottom surface 21 on which the pallet 11 is loaded. Therefore, it is not necessary to provide a member for supporting the guide member 12 on the bottom surface 21, so that the space occupied by the bottom surface 21 can be reduced as much as possible. As a result, when the degree of freedom of the arrangement position of the robot holding the glass plate 17 in the pallet 11 is increased or when the pallet 11 accommodating the glass plate laminated body 22 is moved, It is advantageous in that it can be secured easily.

3, the rails 16 provided on the lower surface of the first base 14 are slightly inclined with respect to the horizontal plane, and the rails 19 provided on the rear surface of the guide member 12 It is slightly inclined with respect to the vertical plane. More specifically, the moving direction of the second base 15 with respect to the first base 14 is the "back-and-forth direction". More specifically, the base 11 of the pallet 11, which supports the base of the glass plate 17, (In the direction of the arrow A in the figure) such that the forward direction is shifted upward relative to the horizontal direction so as to be substantially parallel to the inclination of the upper surface 11a. Although the direction of movement of each holding means 5 and 6 with respect to the guide member 12 is the " up and down direction ", in detail, the rear supporting portions of the pallet 11 supporting the rear surface of the vertically disposed glass plate 17 (In the direction of the arrow B in the figure) such that the upper portion is shifted to the rear side (the back side) with respect to the vertical direction so as to be approximately parallel to the inclination of the lower portion 11b.

The size or material of the glass plate 17 or the sheet material 4 is not particularly limited, but the following materials can be used. That is, the four sides of the glass plate 17 each have a length of 1 m or more and a thickness of 0.5 to 3.0 mm. The sheet material 4 has four sides each having a length of 1.05 m or more and a thickness of 0.05 to 2.00 mm. Both ends of the sheet material 4 in the width direction and the upper side thereof protrude from the glass plate 17. As the sheet material 4, a foamed resin sheet or paper made of foamed polyethylene having stretchability or the like is used.

Next, the operation of the sheet material supply apparatus having the above-described configuration will be described. 4 to 7, which will be referred to in the following description, for convenience sake, the illustration of the guide member 12, the drive mechanism of the gripping means 5, 6 and the like is omitted, 3 are taken into consideration.

4, at the initial stage before the sheet material 4 is cut from the belt-like sheet stock 1, a pair of lower holding means 6 (see FIG. 4) is provided directly below the pair of upper holding means 5, And the clamping mechanisms 5a and 6a of the gripping means 5 and 6 are all in an open state.

5, the feed-out nip roll 10 feeds the strip-shaped sheet stock 1 downward, and the lower end of the strip-shaped sheet stock 1 passes through the pair of lower-end holding means 6 The feeding by the feeding nip roll 10 is temporarily stopped. The clamping mechanism 6a of the pair of lower gripping means 6 is closed so as to grasp and grip both end portions in the width direction at the lower end portion of the band-shaped sheet stock 1. Fig. At this time, the clamp mechanism 5a of the pair of upper gripping means 5 is still in the open state.

From this state, a pair of lower holding means 6 moves downward along the guide member 12, and rotates the delivery nip roll 10 in synchronism with this movement. As a result, as shown in Fig. 6, the belt-like sheet material 1 is further fed downward, and the delivery is temporarily stopped again when the delivery amount reaches a predetermined amount. The clamping mechanism 5a of the pair of upper gripping means 5 is closed and grips both ends of the band-shaped sheet stock 1 in the width direction. As a result, both end portions in the width direction of the band-shaped sheet stock 1 are held by the pair of lower holding means 6 at the lower end portion, and a portion separated upward by a predetermined amount from these holding portions is held by a pair of upper holding means 5).

As shown in Fig. 7, under this condition, the strip-like sheet raw material 1 is cut across the entire length in the width direction by the cutting means 3 at a position right above the pair of upper holding means 5, The four corners of the sheet material 4 of a predetermined size at a later time are held by the holding means 5 and 6, respectively. At the time when each of the gripping means 5, 6 reaches the downwardly moving end, the gripping means 5, 6 are stopped. The sheet material 4 gripped by the gripping means 5 and 6 is pressed against the glass plate 11 stacked on the pallet 11 because the second base 15 moves to the proper position in the front- Is placed in contact with or substantially in contact with the surface of the glass plate (17) present on the forefront surface side of the layered product (22). That is, each gripping means 5, 6 reciprocates between the cutting position where the cutting means 3 is disposed and the downward moving end which is the feeding position of the sheet material 4.

In this case, when the sheet material 4 is moved downward, the surface of the glass sheet 17 and the sheet material 4 are prevented from coming into contact with each other, thereby preventing the surface of the glass sheet 17 from being contaminated or scratching. After the sheet material 4 reaches the downwardly moving end, the second base portion 15 is moved in the forward and backward directions to bring the sheet material 4 into contact with the surface of the glass plate 17, Is subtracted.

Subsequently, a glass plate 17 is placed (laminated) on the front surface side of the sheet material 4 by the glass plate conveying means (not shown) under this state, and the sheet material 4 The clamping mechanisms 5a and 6a of the gripping means 5 and 6 are in the open state.

Thereafter, the gripping means 5, 6 are moved upward to return to the original position in the up and down direction. After that, the same operations as in the embodiment described with reference to Figs. 4 to 7 are repeatedly performed. At the time when a predetermined number of glass plates 17 and the sheet material 4 are stacked on the pallet 11, The glass plate stacking operation for the pallets 11 is completed.

The sheet member 4 is securely gripped by the gripping means 5 and 6 so that the sheet member 4 is placed on the surface of the glass plate 17 on the pallet 11 in a state of avoiding the occurrence of wrinkles and the like So that the sheet material 4 smoothly intervenes between the glass plates 17 without interfering with each other.

When it is necessary to change the dimension of the sheet material 4 in the width direction due to a change in the size of the glass sheet 17 or the like, the original material roll 2 is replaced, and a new strip The guide member 12 is moved in the width direction along the rail 18 of the second base 15 to the position corresponding to the width of the base sheet material 1 and then the operation is repeated.

≪ Second Embodiment >

8 is a perspective view showing a sheet material supply device according to a second embodiment of the present invention. The sheet material feeding device according to the second embodiment differs from the sheet material feeding device according to the first embodiment in that a plurality of (two in the illustrated example) raw material rolls 2 are provided, (Two in the illustrated example) of the glass plate laminate 22 are accommodated in a state in which they are adjacent to each other in the width direction.

Specifically, in this embodiment, the second base 15 is arranged so as to extend in the width direction so as to extend between the pair of first base 14, 1 base portion 14 provided on the lower surface of the rail 16 so as to be slidable.

A pair of guide members 12 are slidably supported on the rails 18 on the front surface of the second base 15. The rails 18 extend in the width direction. Each guide member 12 is independently movable on the rail 18. [ Therefore, it is possible to freely change the widthwise spacing of the pair of guide members 12 and the spacing of the other pair of guide members 12 in the width direction. In this embodiment, since the sheet material 4 having different widths is fed, the raw material rolls 2 having different widths are arranged, and the gap in the width direction of the pair of guide members 12 forming one pair And the widths of the pair of guide members 12 are different from each other. Two glass plate stacked bodies 22 of different sizes are formed on one pallet 11 in the width direction by the holding means 5, 6 of these guide members 12. Since the order of the other structures and the stacking operation of the glass plate are the same as those of the first embodiment, the detailed description is omitted.

The case in which the width dimension of the sheet material 4 is different is described, but the width dimension of the sheet material may be the same. The vertical dimension of the sheet member may be the same or different. The pallet 11 may be two or more independent, and the arrangement of the pallets 11 can be freely changed within the movable range of the respective guide members 12 in the width direction.

≪ Third Embodiment >

Fig. 9 is a perspective view showing a sheet material supply device according to a third embodiment of the present invention. Fig. The sheet feeding device according to the third embodiment differs from the sheet feeding device according to the first embodiment in that each gripping means 5, 6 movable in the up-and-down direction with respect to each of the guide members 12, And is further movable in the front-rear direction with respect to the guide member 12.

Auxiliary guide members 23 and 24 extending in the front-rear direction are provided at upper and lower portions of the respective guide members 12 so as to be slidable in the vertical direction and to the respective auxiliary guide members 23 and 24, (5, 6) are provided so as to be slidable in the front-rear direction. As a result, the positions of the holding means 5 and 6 in the front-rear direction can be individually finely adjusted in accordance with the deformation of the pallet 11 and the laminated state of the glass plate laminate 22. [

In order to simplify the structure of the apparatus, the first and second base portions 14 and 15 are integrated with each other so that the respective holding means 5 and 6 for each of the auxiliary guide members 23 and 24 The sheet material 4 may be brought into contact with the surface of the glass plate 17 by movement.

The drive mechanism for moving the auxiliary guide members 23 and 24 in the up and down direction with respect to the guide member 12 and the drive mechanism for moving the auxiliary guide members 23 and 24 in the forward and backward directions of the gripping means 5 and 6, For example, a ball screw mechanism, a rack and pinion mechanism, a belt transmission mechanism, and a linear motor.

The present invention is not limited to the above-described embodiment, but can be implemented in various forms. For example, in the first embodiment, the second base portion 15 is movably supported with respect to the first base portion 14 in the forward and backward directions, and the guide member 12 is provided with respect to the second base portion 15 A case in which it is movably supported in the width direction has been described, but the present invention is not limited to this. That is, the second base portion may be movably supported in the width direction with respect to the first base portion 14, and the guide member 12 may be movably supported in the forward and backward directions with respect to the second base portion 15. [

The description has been given of the case where the four edges of the sheet material 4 are gripped by the gripping means 5 and 6 and supplied to the surface of the glass plate 17 to arrange them. A tension may be applied to the sheet material 4 by means of an elastic member. In this case, it is preferable that the tension in the vertical direction and the tension in the width direction are simultaneously given to the sheet material 4.

Although two gripping means 5 and 6 are provided on the guide member 12, three or more gripping means may be provided to grip both ends of the sheet member in the width direction.

The grasping manner of the grasping means 5 and 6 is not limited to the clamping mechanisms 5a and 6a but may be a grasping method in which the surface side of both end portions in the width direction of the sheet material 4 is gripped and gripped .

1: strip sheet material 2: raw material roll
3: Cutting means 4: Sheet material
5: upper gripping means 6: lower end gripping means
11: pallet 12: guide member
14: first expectation part 15: second expectation part
17: glass plate 20: girder of a building
22: Glass plate laminate

Claims (6)

In order to form a glass plate laminate formed by alternately laminating a glass plate and a sheet material in a vertical posture on a pallet, the strip material is cut to a predetermined length at a cutting position while being fed, and the sheet material after the cutting is moved to a feeding position A sheet material supply apparatus configured to be disposed on a surface side of a glass plate,
A pair of gripping means for gripping both end portions in the width direction of the sheet material and a pair of guide members for movably supporting each of the pair of gripping means between the cut position and the feed position,
Wherein each of the guide members is suspended from a fixing system above the pallet. The method according to claim 1,
Wherein the fixing system is a structure of a building located above the pallet. 3. The method according to claim 1 or 2,
Wherein at least one of the pair of guide members is movable in the width direction with respect to the fixation system. 4. The method according to any one of claims 1 to 3,
Wherein the guide members are movable in the forward and backward directions with respect to the fixation system. 5. The method according to any one of claims 1 to 4,
Wherein the gripping means and the guide members are provided in a plurality of pairs in the width direction and are configured to feed a plurality of the sheet materials to different positions or a plurality of the pallets of the single pallet. 6. The method according to any one of claims 1 to 5,
And an auxiliary guide member movable in the vertical direction along each of the guide members, wherein the gripping means is provided so as to be movable in the longitudinal direction along the auxiliary guide member.

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