JPH0635296B2 - Separation and feeding device for stacked sheets - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a large-sized sheet that is stacked and wrapped in a predetermined number of sheets with a packaging sheet (wamp) or an unwrapped sheet that is stacked as it is without being packaged before it is applied to a printing machine or the like. The present invention relates to a sheet feeding and separating device for pushing and feeding sheets from the uppermost one.

[Prior art]

Conventionally, a device for stacking large-sized sheets packaged in a wamp in multiple stages on a lift, raising the lift one step at a time, pushing out from the top one with an extrusion mechanism, and separating and feeding,
For example, it is known from JP-A-61-11330.

[Problems to be Solved by the Invention]

However, since the conventional device simply pushes the rear end of the uppermost packaging sheet to separate it from the lower packaging sheet,
The separation cannot be done smoothly. Moreover, unwrapped sheets that are stacked as they are without being wrapped cannot be separated by simply pushing the rear edge. Therefore, an object of the present invention is to enable large-sized packaged sheets and non-packaged sheets to be separated and fed in the same manner in a single device and smoothly.

[Means for Solving the Problems]

The present invention relates to a stacking sheet having a lift table for stacking sheets and raising them by a predetermined height, and a pushing mechanism for pushing a rear end of a predetermined number of sheets at the uppermost part thereof to separate and advance the sheets. The paper separating and feeding device is characterized in that the pushing mechanism is configured as follows. That is, as illustrated in the drawing, the pushing mechanism 9 includes a pushing screw 14 rotated by a pushing motor 9a, and a sliding screw which is screwed onto the pushing screw 14 and slides back and forth along the guide rod 15 by the rotation. A table 16, a packaged sheet pusher 18 as shown in FIG. 4 which is detachably attached to the sliding table 16, and a non-packaged sheet pusher as shown in FIG.
It consists of 17 and. Packaging sheet for pusher 18 is obtained by vertically the pushing element 18 ₃ to press the trailing end of the wrapping sheet 8a forward in the mounting block 18 _1. The pushing element 18 _3, and a lower 18b perpendicular to engage the trailing end of the wrapping sheet 8, the lower the rear end of the wrapping sheet 8
In order to guide to 18b, there is provided an inclined upper part 18a which projects obliquely upward from the upper end thereof, and this pusher
18 _3, is mounted an air nozzle 19 for air injection forward. Further, unpackaged sheet for pusher 17 is obtained by vertically the pushing element 17 ₃ on the mounting block 17 _1, The pushing element 17 _3, the rear end portion of the unpackaged sheet 8a Since it is pushed forward in the gripped state, it is positioned on the vertical portion that engages with the rear end of the unwrapped sheet 8a and on the rear end of the unwrapped sheet 8a that projects forward from the upper end of this vertical portion. An upper protruding portion and a lower protruding portion 17a which protrudes forward from the lower end of the vertical portion and is located below the rear end portion of the unwrapped sheet. The lower protrusion 17a is provided with an air injection hole 17b for injecting air forward.

[Action]

In the device according to the present invention, when the packaging sheets 8 are stacked on the lift table, the sliding sheet 16 pushes the packaging sheet pusher.
When 18 is mounted and the unwrapped sheet 8a is loaded, the unwrapped sheet pusher 17 is mounted. If a pusher 18 for packaging sheets is used, its pusher
18 since _{the third} upper 18a is inclined, it is slightly the position of the rear end of the top of the packaging sheet 8 shift, also even if its thickness is different, this pushing element 18 ₃ forward Then, the vertical lower part 18b and the packaging sheet 8 are accurately engaged with each other, and air is jetted forward from the air nozzle 19 while advancing this, so that the uppermost packaging sheet 8 is , And is smoothly slid on the packaging sheet one step below and fed separately. Also, when using unpackaged sheet for pusher 17, an interrupt to the rear end of the loading the upper end of the lower protruding portion 17a of the pushing element 17 ₃ With the advancement unpackaged sheet 8a , unpackaged sheet 8a of the predetermined number of upper than the interrupt site, thereby being pushed forward in a state such as that gripped the rear end in the pushing element 17 _3. At this time, since the air from the air injection holes 17b of the lower protruding portion 17a of the pushing element 17 ₃ is injected toward the front, the lower protruding portion 17a is unpackaged sheet 8
together enter smoothly into the loading upper part of a, unpackaged sheet 8a of the predetermined number of sheets are gripped rear end in pushing element 17 ₃
Is smoothly separated from the lower unwrapped sheet and fed separately.

【Example】

An embodiment of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the device according to the present invention is roughly divided into a raising / pushing unit 1, an opening / conveying unit 2, and a loading / aligning unit 3. A lift table 4 is horizontally hung by the chains 5 at the four corners of the lifting / pushing unit 1.
Is a sprocket wheel 6 that meshes with the chain 5.
When is rotated by the motor, it is raised in a horizontal state. The packaging sheets, for example, the packaging sheets 8 packaged with the wamp 7 (FIG. 8), are placed on the lift table 4 by a forklift or the like while being stacked on the pallet in multiple stages. Also in the case of unwrapped sheet 8a (FIG. 7) which is not wrapped, it is placed on the lift table 4 while being loaded on the pallet. The lifting / pushing section 1 also has a positioning mechanism for positioning the uppermost packaging sheet 8 on the left and right, and the positioned packaging sheet 8 is pushed to the opening / conveying section 2 side. A moving pushing mechanism 9 and a wamp discharging mechanism 10 for discharging the opened wamp 7 are provided as follows. The positioning mechanism is, as shown in FIG. 3, a vertical ruler plate 11 on the right side, a ruler adjusting mechanism 11a for adjusting the position thereof, a plurality of positioning pushers 12 on the left side, and a positioning screw for propelling it rightward. It is composed of 13 and a positioning motor 13a for rotating the same, and the pusher 12 forms the uppermost packaging sheet 8
The left end of is moved to bring the right end into contact with the ruler plate 11 for positioning. The pushing mechanism 9 has a pushing motor 9a as shown in FIG.
Pushing screw 14 rotated by (Figs. 1 and 2)
A sliding base 16 that is screwed onto the sliding base 16 and slides back and forth along the guide rod 15 by its rotation, and a pair of packaging sheet pushers 18 or a pair of vertically mounted sliding members 16 vertically installed on the sliding base 16. It is composed of an unwrapped sheet pusher 17 (Fig. 5). These pushers 17 and 18 are detachably attached to the slide table 16 so that they can be exchanged. When the packaging sheet 8 is placed on the lift table 4, the packaging sheet pusher 18 is used. , Unwrapped sheet 8
When a is loaded, the unwrapped sheet pusher 17 is used. As shown in FIGS. 4 and 6, the pusher 18 for the packaging sheet has a rod 18 ₂ vertically slidably mounted on a mounting block 18 ₁ and a pusher 18 at the lower end of the rod 18 _{2. 3} which was fixed and the pushing element 18 ₃ is urged downward by a spring 18 ₄ wound on the rod 18 _2. This pusher 18
₃ is a vertical lower part 18b which engages with the rear end of the packaging sheet 8
And a sloping upper part projecting obliquely upward from the upper end to guide the rear end of the packaging sheet 8 to this lower part 18b.
18a and. Further, the pushing element 18 ₃ is attached an air nozzle 19 for injecting air into the forward, air is supplied through hose to the air nozzle 19. The packaging sheet for pusher 18, sliding table 16 and the mounting block 18 ₁
It is hung vertically by attaching it to the bolt using a nut. As shown in FIG. 5, a pusher 17 for an unwrapped sheet is provided with a rod 17 ₂ vertically mounted on a mounting block 17 ₁ similar to that of the pusher 18 for a sheet to be adjusted vertically. A pusher 17 ₃ is fixed to the lower end of the rod 17 ₂ . This pusher 17 ₃
Is pushed forward with the rear end of the unwrapped sheet 8a being gripped, the vertical portion that engages with the rear end of the unwrapped sheet 8a and the front end of the vertical portion that protrudes forward It has an upper projecting part located above the rear end of the packaging sheet 8a and a lower projecting part 17a projecting forward from the lower end of the vertical part and located below the rear end part of the unwrapped sheet 8a. . A plurality of air injection holes 17b for injecting air forward are provided at the tip of the lower protruding portion 17a at right and left intervals, and an air passage communicating with these air injection holes 17b is provided inside thereof. Is provided, and when air is supplied to this air passage through a hose, air is jetted all at once from the air jet holes 17b toward the front. When the packaging sheets 8 are stacked on the lift table 4 in multiple stages, the lift table 4 rises, and the rear end of the packaging sheet 8 at the uppermost stage pushes the packaging sheet pusher 18. slightly raised this by abutment on the top 18a of the child 18 ₃ against the spring 18 _4, the loading top surface of the wrapping sheet 8 is increased to a predetermined position. This is detected by the sensor, and the lifting operation of the lift table 4 is stopped. Thereafter, when the screw 14 is sliding base 16 and pushing element 18 _3, as shown in FIG. 6 rotates is propelled forward, push Doko 18 ₃ packaging sheet lower part 18b of the uppermost This wrapping sheet 8 in contact with the rear edge of the sheet 8
Is pushed forward. During this pushing operation, the air nozzle 19 is provided between the uppermost packaging sheet 8 and the packaging sheet 8 one step below.
Since air is jetted from the uppermost packaging sheet 8, the uppermost packaging sheet 8 slides smoothly on the packaging sheet 8 one step below. Also, pushing element 18 _3, its upper portion 18a is inclined as described above, yet because it is biased downward by a spring 18 _4, the position of the rear end of the top of the packaging sheet 8 at the time of stop There be shifted slightly, also even if its thickness is different, the engagement between the rear end of the pushing element 18 ₃ thereunder 18b if advancing the wrapping sheet 8 is performed appropriately, also the The engagement does not come off during pushing. The positioning pusher 12 of the positioning mechanism is also mounted in the same manner as the packaging sheet pusher 18, and an air nozzle is also attached to it, and the pushing operation for positioning by the same is the same as above. Done. When the unwrapped sheet 8a is loaded on the lift table 4, the unwrapped sheet pusher 17 is attached to the slide table 16. In this case, when the uppermost stacking surface of the unwrapped sheet 8a reaches a predetermined position and the lifting of the lift table 4 stops, the pusher 17 moves forward, and the pusher 17 _{3 has} a lower protruding portion 17c.
a interrupts the rear end of the upper end of the stack of unwrapped sheets 8a,
A predetermined number of unwrapped sheets 8 above the interruption site
a is hereby pushed forward in a state as sandwiched as shown in FIG. 7 and the rear end in the pushing element 17 _3. Smooth this time, since the air from the air injection holes 17b of the front end edge portion of the lower protruding portion 17a of the pushing element 17 ₃ is injected, the lower side plate portion 17a in the stacking upper portion of the unpackaged sheet 8a together enters, unpackaged sheet 8a a predetermined number which is held the rear end in pushing element 17 _3, the lower side of unpackaged sheet 8
a Separated more smoothly and advanced. Since the wamp ejection mechanism 10 operates in the final step when processing the packaging sheet 8, its configuration will be described later. Next, the opening / conveying unit 2 will be described. The uppermost packaging sheet 8 that has been pushed forward by the packaging sheet pusher 18 and has moved forward as described above slides on the horizontal guide table 20 to become horizontal as shown in FIG. Riding on the horizontally open lower opening plate 21, and the front opening position stopper 22 protruding from the tip of the lower opening plate 21 (see FIG. 10)
The front end collides with and stops. The guide table 20 is hollow, as shown in FIG. 8, and is provided with a large number of air injection holes 20a on its upper surface and curved rear end surface.
Slides smoothly on the guide table 20 because air is jetted from the air jet holes 20a. Then, while the packaging sheet 8 is moving forward until it comes into contact with the front opening position stopper 22, the left and right side faces of the wamp 7 are automatically moved by the horizontally rotating disc-shaped left and right side cutters 23. Be disconnected. These side cutters 23 are individually rotated by a cutter motor 24, and their positions do not move back and forth, but they can be adjusted to the left and right at the same time by a screw mechanism 24a, and at the inactive position (right end or left end) where unsealing does not occur. It can be evacuated. The packaging sheet 8 whose front end is positioned by the front opening position stopper 22 slides leftward or rightward along the cutter rail 25 while horizontally rotating, and is rotated by the disc-shaped front cutter 26 so that the entire front length of the wamp 7 is reduced. Be disconnected. A cutter motor 27 for rotating the front cutter 26 is attached to a cutter slide base 28 mounted on a cutter rail 25, and the slide of the cutter slide base 28 is performed by, for example, chain drive. The front cutter 26 can also be retracted to an inoperative position (right end or left end) where the opening operation does not occur. When the front end portions of the left and right side surfaces and the entire length of the front surface of the wamp 7 are cut in this manner, the lower suction plates 29 attached to the lower opening plate 21 and the upper opening plates attached to the upper opening plate 30 are attached. Air suction by a plurality of suction cups 31 is started, and the lower surface and the upper surface of the wamp 7 are suctioned by the suction cups 29, 31 to the upper surface and the upper suction cup 31 of the lower opening plate 21. The lower suction cup 29 is attached to the lower side of the lower opening plate 21, and faces the suction hole 32 as shown in FIG. Upper suction cup 31
Are projected from the lower surface of the upper opening plate 30. Lower opening plate 21
The left and right ends thereof are pivotally supported by a shaft 33, and are vertically rotated by a motor or a cylinder (not shown).
30 is rotated up and down by a cylinder. Lower opening plate 21
Air injection needles 34 are attached to a plurality of left and right lower positions so that they can be moved forward and backward by an injection needle operating cylinder 34a, and air is injected from this. When the wipe 7 is sucked as described above, the lower unsealing plate 21 rotates downward and the upper unsealing plate 30 rotates upward as shown by the chain line in FIG. 8, and the front end portion is already cut. The wamp 7 that is being cut has the upper and lower cut portions 7a, 7 with the cutting line as a boundary.
It is divided into b pieces and opened up and down, and the front end is open, and the sheet 8'in the wamp 7 is opened.
The front end of is exposed. At this time, the cylinder for operating the injection needle
34a is actuated to cause the air jet needle 34 to project from the small hole of the lower opening plate 21 to the front thereof, and to pierce from the rear side to the left and right plural places of the cut portion 7b on the lower side of the pump 7, and to blow air toward the front thereof. To jet. Further, the front end portion of the exposed sheet 8'is bent and hangs downward from the guide table 20 as the lower opening plate 21 is rotated downward, and the front end portion and the lower side of the wipe 7 are formed. Air is blown from the air injection needle 34 between the cut portion 7b and the cut portion 7b. In this way, the sheet 8'of which the front end is hung down is lifted up to the horizontal state by the L-shaped lifting piece 36 of the lifting mechanism 35 at the front end. At this time, since air is jetted from the air jetting needle 34 as described above, even if the front end portion of a part of the lower sheet 8'of the sheet 8'is uneven, it is still air. It is pushed up by the jet and all of it is lifted. The lifting pieces 36 are fixed to a plurality of left and right portions of the horizontal shaft 36a rotated by a motor or a cylinder. Sheet 8'with its front edge lifted
As will be described below, the pull-out mechanism 37 pulls out the front part from the one-piece 7 and mounts it on the gondola-shaped carrier table 38. The pull-out mechanism 37 transmits the rotation of the pull-out / conveyance motor 39 to the pull-out screw 40 via the transmission mechanism, and the screw 40
Clamp slide base 41 and clamp rail 42
Slide it back and forth along (Fig. 11). A pair of upper and lower clamps 43, which are operated by cylinders, are mounted on the clamp slide base 41 as conventionally known. As shown in FIG. 11, the carrier table 38 is composed of an upper frame part 38a, left and right frame parts 38b hanging from the left and right ends thereof, and horizontal left and right mounting parts 38c at the lower ends thereof, and the drawing mechanism is provided inside these parts.
The clamp slide base 41 of 37 and the clamp 43 can pass through the notch portion 38d between the left and right mounting portions 38c. The central portion of the upper frame portion 38a of the carrier table 38 is connected to the sleeve 45 propelled by the carry-out screw 44 parallel to the above-mentioned pull-out screw 40, and the left and right frame portions 38b.
Are guided by the left and right carrier rails 46. At the front ends of the left and right mounting portions 38c, air injection nozzles 47 for injecting air toward each other are attached so that their positions can be adjusted. The rotation of the pull-out / conveyance motor 39 is also transmitted to the carry-out screw 44 via a transmission mechanism. In FIG. 9, when the front end of the sheet 8'is lifted by the lifting piece 36 as described above, the clamp 43 is retracted by the slide of the clamp slide base 41, and the sheet 8a is moved by the operation of the cylinder. After being clamped up and down, the clamp 43 immediately advances. During this time, the upper and lower cut portions 7 of the wamp 7
The sheets a'and 7b are continuously adsorbed by the suction cups 31 and 29 with their mouths open, so that the sheet 8'is pulled out from the wipe 7. During this withdrawal, since air is blown from the air jet needle 34 between the cut portion 7b on the lower side of the wipe 7 and the sheet 8a as described above, they are separated, that is, the sheet 8 '. Can be extracted smoothly. The extracted sheet 8 '
Are the mounting parts 38 on the left and right of the carrier 38 waiting at a predetermined position.
c on board. When the clamp 43 moves forward to a predetermined position on the way, the transfer screw 44 also pulls out and the transfer motor
The rotation of 39 is transmitted, the transport table 38 advances at the same speed as the clamp 43, and the sheet 8a is transported from the opening / transporting unit 2 to the stacking / aligning unit 3. Next, the stacking / aligning section 3 will be described. A stacking table 48 for stacking the sheets 8'is provided therein, and the lift table 4 of the lifting / pushing section 1 is connected by a chain 49.
Suspended in the same way as, and raised and lowered in the same way.
The stacking table 48 detects the stacking height of the sheets 8 ′ stacked on the stacking table 48, and every time the stack of sheets 8 ′ is stacked so that the height of the stacking upper surface is always constant. It is lowered by that amount. This height (the height of the loading table 48 itself when no sheets 8'are loaded)
Is a little lower than that so as to form a step with the mounting portion 38c of the carrier 38. In addition, at the boundary between the stacking / aligning unit 3 and the opening / conveying unit 2,
A stopper 50 is mounted rotatably around a shaft 51.
The shaft support position of this stopper 50 is set on the left and right mounting portions 38 of the carrier table 38.
It is located at a position corresponding to the missing portion 38d between c. The stopper 50 is erected by a cylinder (not shown) and is normally laid down, but when it is erected, its free end is placed on the mounting portion 38c.
Higher than the height of. The stacking / preparing unit 3 also includes a left and right aligning plate 52 for pressing and aligning the left and right ends of the newly stacked sheets 8'on the stacking table 48, and a front aligning plate 53 for aligning by pressing the front end toward the stopper 50. Are mounted so as to be slid along the guide rods by the cylinders. In addition, loading
At the top of the aligning section 3, left and right pushers that push the right and left corners of the front end of the newly stacked uppermost sheet 8'from above.
54 (Fig. 12) is vertically movably installed. These pushers 54 are moved up and down by a cylinder. As described above, when the transport table 38 on which the sheet 8'of one stage is placed advances to a predetermined position above the stacking table 48, the clamp 43 releases its holding and, as shown in FIG. The stopper 50 stands up. After this, the transport table 38 immediately retreats, but the sheet 8'mounted on it is already loaded on the loading table 48 because the trailing edge of the sheet 8'abuts against the stopper 50 and its follow-up is restricted. The sheets are laid on the sheet 8 ', starting from the front edge. The pusher 54 descends almost at the same time as the carriage 38 begins to move backward, and the pusher 54 presses the right and left corners of the sheet 8'from the upper side when only the front end of the sheet 8'is unloaded.
Immediately after the pressing starts, air is jetted from the air introduction nozzles 47 on the left and right sides of the carrier 38, and the air is blown on the left and right side surfaces of the sheet 8 ′ to be unloaded from the carrier 38. At this time, since the height of the placing portion 38c of the transport table 38 is slightly higher than the upper surface of the loading table 48 and there is a step between them, the sheet 8'to be wholesaled is bent by this step, Air injection nozzle 47 in the bent part on the left and right sides
Since more air is jetted, the air can be satisfactorily introduced between the sheets 8 '. Since the bent portion moves to the rear as the carriage 38 moves backward, the air injection is performed on the sheet 8 '.
Is performed over the entire length of the left and right side surfaces of. When the carrier 38 is retracted to the opening / carrying unit 2, the pusher 54
After the ascends, the front aligning plate 53 is propelled so that the newly loaded sheet 8'is aligned in the front-rear position with the sheet slightly below it, and the left and right aligning plate 52 is propelled. The left and right positions are aligned. After this, the stopper 50 falls down, and the clamp 43 also returns to the opening / conveying unit 2 and retracts. While the sheet 8'is loaded as described above,
In the unsealing / conveying unit 2, the air jet needle 34 retracts and is pulled out from the lower cut portion 7a on the lower side of the wipe 7.
Due to this, the air injection is stopped, and the emptied wamp 7 is released from the suction by the suction cups 29 and 31, and the upper opening plate 30 is returned downward and the lower opening plate 21 is turned upward. After that, in the lifting / pushing unit 1, the wamp discharge mechanism
The empty wamp 7 is discharged by the 10, and the wamp discharging mechanism 10 will be described next. As shown in FIGS. 4 and 5, the sliding base 16 on which the packaged sheet pusher 18 (or the unpackaged sheet pusher 17) is mounted is further used for returning the wipe. Suction cup 55 is cylinder 55
It is erected so that it can be moved up and down by a. Also,
On the upper right side of the raising / pushing unit 1, a slide stand 56 for one-off discharge is mounted on the rail so as to be slidable left and right as shown in FIG. Suckers 57 are vertically provided at predetermined intervals. This slide base 56 is also propelled left and right by the rotation of the motor. In addition,
At the right end of the pushing portion 1, a lower one-amp discharge driving roller 58 rotated by a motor is axially supported, and a cylinder 59 is also provided.
The arm 60 rotated by
61 is pivotally supported. When the arm 60 is rotated downward by the cylinder, the driven roller 61 comes into pressure contact with the drive roller 58 and is driven by the drive roller 58 to rotate. A one-piece discharge guide plate 62 is provided slightly below the drive roller 58. The wrapping sheet pusher 18, which has pushed the wrapping sheet 8 toward the opening / conveying unit 2 side as described above, moves forward until the empty wamp 7 is released from the suction cups 29, 31 as described above. Stays in the stopped position, and therefore the suction return sucker 55 is also in this position. The sucker 55 for returning the wipe is lowered at this position to adsorb the upper surface of the empty one 7, and then is raised to slightly lift the one 7. After that, the pusher 18 retracts, so that the empty wamp 7 is returned while being sucked by the return suction cup 55. When the pusher 18 retreats to the original position and stops, the empty wamp 7 is adsorbed by the one-amp discharge suction cup 57, while it is released from the one-piece return suction cup 55, and the one-amp discharge slide base 56 slides to the right. Drive roller for one-piece discharge by moving
It is sent between the 58 and the driven roller 61. This driven roller 61
Is displaced downward and is pressed against the drive roller 58,
The empty pump 7 is discharged to the right of the lifting / pushing unit 1. When the discharging is completed, the lift table 4 is lifted by one stage of the packaging sheets 8 loaded on the lift table 4, and then the above series of operations is repeated. On the other hand, in the case of the unwrapped sheet 8a, the lift table 4
As shown in FIG. 7, a predetermined number of sheets at the top of the upper stack are separated and pushed by the unwrapped sheet pusher 17, and are advanced to the level on the lower opening plate 21. Unwrapped sheet 8
When a is advanced in this way, the left and right side cutters 23 and the front cutter 26 are retracted. When the unwrapped sheet 8a stops on the lower unsealing plate 21, the clamp 43 causes the unwrapped sheet 8a in the recess 21a (FIG. 10) provided at the front center of the lower unsealing plate 21. After sandwiching the sheet, it moves forward and the unwrapped sheet 8a is conveyed in the same manner as above.
It mounts on the mounting parts 38c on either side of 38. After this, the unwrapped sheet 8a is conveyed to the stacking table 48 by the conveying table 38, as in the case of the sheet 8'extracted from the wamp 7, and as the conveying table 38 retracts. Aeration nozzle 47
Air is further put in from both the left and right sides and loaded on the loading table 48. Then, when the transport table 38, the clamp 43, and the unwrapped sheet pusher 17 return and return, the lift table 4 is raised to a predetermined height, and then a series of operations is repeated.

【The invention's effect】

As described above, according to the apparatus of the present invention, it is possible to separate and feed large-sized packaged sheets and unpackaged sheets in the same manner in one apparatus and smoothly.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a simplified side view,
FIG. 2 is a plan view, FIG. 3 is a rear view of the wrapping sheet positioning mechanism and the one-push discharge mechanism, FIGS. 4 and 5 are perspective views of the pushing mechanism, and FIG. Side view, FIG. 7 is a side view of the unwrapped sheet in a pushed state, FIG. 8 is a side view showing the opening operation of the wamp, and FIG. 9 is a side view showing the operation of pulling out the sheet from the wamp. FIG. 10 is a perspective view of a guide table, FIG. 11 is a front view of a carrier and a clamp, and FIG. 12 is a side view showing a loading and inflating operation. 1 ... Ascending / pushing section, 2 ... Opening / conveying section, 3 ... Loading / aligning section, 4 ... Lift table, 5 ... Chain, 6
...... Sprocket wheel, 7 ...... Wamp (wrapping sheet), 7a and 7b ...... Wamp cut portion, 8 ...... Packaged sheet, 8a ...... Unwrapped sheet, 8 '…… Opened sheet Paper, 9 ... Pushing mechanism, 9a ... Pushing motor, 10 ... Wamp discharge mechanism, 11 ... Ruler plate, 11a ... Ruler adjusting mechanism,
12 …… Positioning pusher, 13 …… Positioning screw, 13a …… Positioning motor, 14 …… Pushing screw, 15 …… Guide rod, 16 …… Slide base, 17 …… Unwrapped sheet Pusher, 17 ₁ …… Mounting block, 17 ₂ …… Rod, 17 ₃ …… Pusher, 17 a …… Under-pushing part of pusher for unwrapped sheet, 17 b …… Air injection hole, 18 ...... Pusher for packaging sheet, 18 ₁ …… Mounting block, 18 ₂ …… Rod, 18
₃ ... pusher, 18 ₄ ... spring, 18a ... upper part of pusher for packaging sheet, 18b ... lower part of pusher for packaging sheet, 19 ... air nozzle, 20 ... guide table , 20a ...
… Air injection hole, 21 …… Lower opening plate, 21a …… Recessed part,
22 …… Stopper, 23 …… Side cutter, 24 …… Cutter motor, 24a …… Screw mechanism, 25 …… Cutter rail, 26 …… Front cutter, 27 …… Cutter motor, 28 …… Cutter slide,
29 …… Sucker, 30 …… Upper opening plate, 31 …… Sucker, 32 …… Suction hole, 33 …… Axis, 34 …… Air injection needle, 35 …… Lifting mechanism, 36 …… Lifting piece, 36a …… Horizontal axis, 37 …… Drawing mechanism, 38 …… Transfer platform, 38a …… Upper frame of the transport platform, 38b ……
Left and right frame parts of the carrier, 38c ... carrier and mounting part, 38d ...
Missing part of the carrier, 39 …… Motor for pulling out and carrying, 40 …… Screw for pulling out, 41 …… Clamp slide, 42 …… Clamp rail, 43 …… Clamp, 44 …… Screw for unloading,
45 …… Sleeve, 46 …… Conveyor rail, 47 …… Air injection nozzle, 48 …… Loading table, 49 …… Chain, 50…
… Stopper, 51 …… Axis, 52 …… Left and right aligning plate, 53 …… Front aligning plate, 54 …… Pusher, 55 …… Wamp return sucker, 55a
…… Cylinder, 56 …… Wamp discharge slide, 57 …… Wamp discharge suction cup, 59 …… Cylinder, 60 …… Arm, 61 ……
Follower roller for discharge of wamp, 62 ...... Wamp discharge guide plate.

Claims (1)

[Claims] 1. A stacking sheet having a lift table for stacking sheets and raising them by a predetermined height, and a pushing mechanism for pushing a rear end of a predetermined number of sheets at the uppermost part thereof to separate and advance the sheets. In the sheet separating / feeding device, the pushing mechanism has a pushing screw 14 rotated by a pushing motor 9a.
And a slide base 16 screwed onto the slide base 16 that slides back and forth along the guide rod 15 by its rotation, and a pusher for the packaging sheet that is detachably attached to the slide base 16. 18 and an unwrapped sheet pusher 17, and the wrapped sheet pusher 18 pushes the rear end of the wrapped sheet 8a forward.
₃ is hung vertically on the mounting block 18 ₁ , and this pusher 18 ₃
Has a vertical lower part 18b which engages with the rear edge of the packaging sheet 8.
And a sloping upper part projecting obliquely upward from the upper end to guide the rear end of the packaging sheet 8 to this lower part 18b.
With 18a and is provided, on the pushing element 18 _3,
An air nozzle 19 that injects air forward is attached,
The unpackaged sheet for pusher 17 is made to vertically the pushing element 17 ₃ on the mounting block 17 _1, to the pushing element 17 _3, gripping the rear end portion of the unpackaged sheet 8a In order to push it forward,
A vertical portion that engages with the rear end of the unwrapped sheet 8a, an upper protruding portion that projects forward from the upper end of this vertical portion and is located above the rear end portion of the unwrapped sheet 8a, and the vertical portion A lower projecting portion 17a is provided which projects forward from the lower end and is located below the rear end portion of the unwrapped sheet, and the lower projecting portion 17a has an air injection hole 17b for injecting air forward. A sheet feeding and separating device for stacked sheets, which is characterized in that it is provided.