JPH0364371B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides sheet-fed printing for paper products that are wrapped in bundles with wamps (wrapping paper) after unpacking. The present invention relates to an automatic dump stripping device for stacking sheets in a precisely aligned state so that they can be fed from a machine feeder.

(Prior art) In general, sheets of paper used for printing are packaged in bulk, stacked in a bar, or wrapped in small quantities such as 100 or 250 sheets (wamp) as shown in Figure 1.
Sometimes it is packaged in W.

When printing sheets that are packaged in small quantities, it is necessary to remove all the packaging from each bundle, take out the blank paper inside, and stack the sheets in a stack with high alignment accuracy. In this case, conventionally, in order to remove the wamps, a worker would use a knife to cut the sides of each bundle on three sides, peel off the wamps and extract the contents, and then stack them on another pallet.

(Problem to be solved by the invention) Wrapped sheets are usually packed in 40 to 60 bundles in a pallet, and the height of the pallet reaches the height of a person's back. It's unreasonable, and you have to be careful not to damage the blank paper inside. In addition, bar stacking is extremely labor-intensive work, as objects weighing 10 to 30 kg are moved 80 to 120 times per hour.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an automatic wamp peeling device that can mechanically cut wrapping paper with a knife, which is a time-consuming and labor-intensive task for an operator.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides an extrusion device that extrudes packaged products placed on a mounting device one bundle at a time, and a position that receives the extruded packaged products on a table and positions them at a predetermined position. a regulating device, and a cutter device movably provided to cut the four sides of a positioned wamp of a packaged product, the wamp cutting device cutting the wamp into upper and lower halves at the same height position; An automatic wump stripping device is characterized in that it is equipped with a wump stripping device having a lower wamp suction car for removing the lower wump by suction, and an upper wump suction car for suctioning and removing the upper wump.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 2 to 11.

In FIG. 2, the device M of the present invention includes a mounting device 1 for stacking packaged products packaged by a wamp W, and a mounting device 1 provided adjacent to this mounting section 1 for stacking packaged products in a bundle. Extrusion device 2 for extruding in batches
, a wamp cutting device 4 that positions the packaged product supplied on the table 3 at a predetermined position and cuts the four sides of the wamp, and a wamp peeling device 5 that removes the wamp cut by the wamp cutting device 4.
and a bar stacking device 6 for stacking the stripped contents of the wamp.

The placing device 1 has a pallet 7 for placing packaged products, and a lifter 8 for supporting the pallet 7 so as to be movable up and down. It is designed to move up and down in response to signals from photoelectric detectors 9, 9 provided on the left and right sides in order to detect the top end of a certain bundle.

The extrusion device 2 has a vertical support plate 10, as shown in FIG. The vertical support plate 10 is moved into and out of contact with the vertical support plate 10 by means of an air cylinder 12. An extrusion plate 11 is attached to the tip of the rod 13 of the air cylinder 12, and auxiliary guide rods 14 are provided on the left and right sides of this extrusion plate 11.
The protruding tip of No. 4 is inserted into the guide hole of the vertical support plate.

As shown in FIG. 5, the wamp cutting device 4 includes:
It has a fixed table 15 on which the packaged products extruded by the extrusion device 2 are placed one bundle at a time. A movable moving grip 16, 16 is provided, and this moving grip 16 is connected to an air cylinder 17 and this air cylinder 1.
The grip piece 18 is actuated by the air cylinder 17.
It is designed to be opened and closed vertically via a ring mechanism 19 by expanding and contracting (FIG. 6).

These moving grips 16 are connected to air cylinders 20,
This air cylinder 20 is attached to the lower end of the rod 21 of 20, and this air cylinder 20 is fixed on the mounting plates 22, 22. This mounting plate 22 is attached to the rodless cylinder 23 in the front and rear direction, and the mounting plate 22 is designed to move forward and backward.

A grip 16 is attached to the front of the fixed table 15.
A position regulating device 24 is provided for positioning a bundle of packaged products carried by the moving table in a predetermined position. A second regulating plate 26 is provided facing the opposite side thereof, and a third regulating plate 27 is provided above the center portion of the moving table in the left-right direction.

The first regulating plate 25 is supported by a first air cylinder 28 so as to be movable in the vertical direction, and the second regulating plate is supported by a horizontal air cylinder 29 so as to be movable in the horizontal direction. It is supported so that it can move up and down. The third regulating plate 27 is vertically connected to the air cylinder 30.
It is supported so that it can move up and down. The position regulating device 24 also has fourth regulating plates 32, 32 rotatably supported by rotary air cylinders 31, 31 attached to the lower surface of the front end of the fixed table 15, as shown in FIG. has,
This fourth regulating plate 32 is located between the vertical position and the horizontal position.
It is rotatable over a range of degrees, and limit switches 33, 33 are attached to both parts, and the front end of the packaged product carried by the grip 16 comes into contact with this limit switch 33. When this occurs, the grip 16 is opened.

A movable cutter device 34 is provided along the square of the fixed table 15 for horizontally cutting the wamp of the packaged product at the same height position.
This movable cutter device 34 is connected to the fixed table 15.
A movable cutter 35 is provided along the front-back side A on the left side of the fixed table 5, and a movable cutter 3 is provided along the left-right side B on the front side of the fixed table 5.
6, a movable cutter 37 provided along the front-rear side C on the right side, and a left-right side D on the rear side.
It consists of a movable cutter 38 provided along the .

The cutter 35 that moves along the A side includes a rodless cylinder 39 that extends along the A side, and a cutter 40 that moves along the cylinder 39.
The cutter moves along the B side by the rodless cylinder 41 and the rodless cylinder 41.
It consists of a cutter 42 that moves along the side. The movable cutter 37 along the C side includes a rodless cylinder 43 extending along the C side, and a movable mounting piece 44 that is moved by the rodless cylinder 43.
A cutter 45 is attached to the movable mounting piece 44, and a limit switch 46 is provided adjacent to the cutter.
It is supported by 7,47. The movable cutter 38 along the D side includes a rodless cylinder 48 similar to the movable cutter 37, a movable mounting piece 49, a cutter 50, a limit switch 51, and the rodless cylinder 48 can be moved into and out of the D side. It has supported air cylinders 52, 52.
This air cylinder 52 is attached to mounting pieces 53, 53, and this mounting piece 53 is attached to air cylinders 54, 5.
4 so that it can move up and down. This movable cutter 38 must initially be located in a lower position in order to avoid interfering with the movement of the bundle of packaged products as they are delivered to the fixed table 3 by the extrusion device 2. Therefore, the movable cutter 38 is provided so as to be movable up and down by the air cylinder 54.

A delivery device 55 is provided so as to straddle the fixed table 15 and the rear end of the movable table of the bar stacking device 6 for delivering the packaged product whose wamps have been cut by the movable cutter onto the movable table. Reference numeral 55 denotes rodless cylinders 56, 56 which are provided to extend in the front and back direction with appropriate intervals left and right, and mounting pieces 57, 57 that are moved by the rodless cylinders 56.
and the air cylinder 5 fixed to this mounting piece 57.
8, 58, and delivery plates 59, 59 provided vertically movably by this cylinder 58.

As shown in FIG.
1, 61, . . . , 61 are provided at appropriate intervals, and the suction car 61 serves as a lower wamp stripping device for adsorbing and removing the lower part (lower ramp) of the wamp cut vertically by the movable suction car device. . This suction car 61 is connected to a vacuum source (not shown), and its supporting portion is formed into a flexible structure using an elastic member such as rubber. Therefore, when the bundle of packaged products moves from the fixed table 15 to the movable table 60 side with the suction car 61 adsorbed to the lower surface of the packaged products, the suction car 61 moves to the movable table 50 side as shown in FIG. 8b. Fall down and let the lower wamp fall downwards. Further, a feed roller 62 is provided along the rear end surface of the movable table 60, and this feed roller 62 is for feeding the packaged product from which the lower wamp has been removed to the movable table 60. Further, in FIG. 5, an upper wamp stripping device 63 for suctioning and removing the upper wamp is provided above the movable table 60, and this stripping device 63 is a rodless cylinder that protrudes and extends outside the movable table along the left and right direction. 64, a mounting piece 65 that moves in the left-right direction along this rodless cylinder 64, and pipes 67, 67 that are fixed to this mounting piece 65 and have suction wheels 66, 66...66 at their tips. . The upper wamp stripping device 63 and the lower wump stripping device are combined to form a wump stripping device.

Next, the bar stacking device 6 will be explained.

The bar stacking device 6 has a support frame 70 as shown in FIG. It is designed to be rotated by an electric motor (not shown). Ball screw portions 73, 73 of a holding frame 72 are engaged with this support frame 70,
The rotation of the screw shaft 71 causes the holding frame 72 to move up and down. The holding frame 72 holds a horizontal support beam 74 along which the movable table 60 moves. A movable table stop plate 75 is fixed to the front end of the support beam 74, cantilevers 76, 76 are attached to approximately the center of the holding frame 72, and air cylinders 77 are mounted on both sides of the cantilever beam 76. ,77,7
8 and 78 are fixed, a first stop plate 79 is supported by an air cylinder 77 so as to be movable up and down, and a second stop plate 80 is supported by the air cylinder 78.
is supported so that it can move up and down. The structure inside the horizontal support beam 74 is as shown in FIG. 11, and there are vertical guide rods 81,
81 are provided at intervals, and the guide rods 8
1, the slide plate 82 slides along the rollers 83, 83...
The movable table 60 is attached to this slide plate 82, and a guide slit 84 is provided on the surface of the horizontal support beam on the movable table side, and the slide plate is moved through this slit 84. A support shaft 85 protrudes from 82 and extends. A sprocket 86 and a pulley 87 are provided at the front and rear of the horizontal support beam, and a chain 88 is connected between the sprocket 86 and the pulley 87.
is wound around the chain 88, and this chain 88 is fixed to the front and rear ends of the slide plate 82. The sprocket 86 is adapted to be rotated by an electric motor 89.

Phototubes 90 and 91 are attached to the front lower surface of the moving table and the front lower surface of the horizontal support beam 74, and these phototubes 90 and 91 detect the top surface of the stack of blank sheets on the pallet 92 placed in the stacking position. , the downward movement of the movable table 60 is stopped when the movable table 60 becomes flush with the upper surface thereof.

Next, the effect will be explained.

The topmost bundle of packaged products placed on the lifter 8 is transferred to the fixed table 1 by the extruder 2.
Extruded onto 5. At this time, as shown in FIG. 5, the grip 16 opens to hold the front end of the extruded packaged product.

When the packaged product located at the top of the mounting device 1 is delivered onto the fixed table 15, the detector 9 is activated to drive the lifter 8, and the packaged product located next to the top is placed at the same level as the detector 9. Let it rise to.

During this operation, the grip 16 grips the extruded packaging product and the rodless cylinder 2
Moved forward by 3. At this time, the rotatable fourth regulating plate 32 provided between the fixed table 15 and the movable table 60 is raised to a vertical position as shown in FIG. The grip 16 moves the packaged product forward until the front end of the packaged product is abutted. Next, the air cylinders 28 and 29 are operated to force the second part of the packaged product against the first regulating plate 25.
It is pressed in the Y direction in the figure by the regulating plate 26. At the same time, the air cylinder 30 is operated to press the third regulating plate 27 against the top surface of the packaged product. The packaged products positioned by these position regulating devices 24 are then cut around the four circumferences of the wamp by a movable cutter device 34. At this time, the cutters 40, 42, 45, and 50 of each movable cutter are adjusted to the same height, thereby dividing the wamp into two parts, an upper part and a lower part.

The cutter that moves along sides C and D of the fixed table can also move toward and away from those sides, so each rodless cylinder 4
3,48 positions are determined. When the rodless cylinders 43, 48 approach the sides of the packaged product and the cutters 45, 50 come into contact with the wamp, the limit switches 46, 51 are activated, and the air cylinders 47, 5
2 stops. Each rodless cylinder 4
After the positions of 3 and 49 are determined, each cutter 4
0, 42, 45, 50 along the rodless cylinder to cut the wamp.

When the cutting of the wamp is completed, each regulation plate 25, 2
7, 26 and 32 return to their original positions and the packaged product is opened. Thereafter, the delivery device 55 is activated to deliver the packaged product onto the moving table 60. For this purpose, the air cylinder 58 is activated and the delivery plate 59 is lowered. Next, when the rodless cylinders 56, 56 are operated, the delivery plate 59
sends out the rear end of the packaged product toward the moving table 60. At this time, the followers 61, 61 are activated. This state is shown in Figure 8b. When the suction car 61 starts suction, the lower wamp is attracted to the suction car, and as the packaged product moves, the suction car 61 bends toward the moving table 60, thereby causing The front end of the lower wamp faces downward. Therefore, the front end of the lower wamp comes to be located below the feed roller 62, and at this moment the feed roller 61
When the operation of the lower wamp is stopped, both tables 1
It falls between 5 and 60. The stack of blank sheets with the upper wamp still covered is placed on the transfer table 59.
until the front end of the stack of blank sheets abuts the first stop plate 79 (FIG. 9).
moves the stack of blank sheets. When the stack of blank sheets stops on the moving table, the upper wump is removed by the upper wamp removing device 63. That is, a vacuum source (not shown) was activated to adsorb the upper wamp by the suction car 66, and then the rodless cylinder 64 was activated to move the suction car 66 in the Y direction (to the left) and out of the moving table. At this position, suction by the suction car 66 is stopped. By doing this, the upper wump is removed from the stack of blank sheets. Cylinder 7 when the upper wamp is removed
7 and 78 are operated to raise the stop plates 79 and 82. Thereafter, the moving table 60 is moved by the electric motor 8
9 moves forward along the horizontal support beam 74, and the front end of the moving table 60 moves forward along the horizontal support beam 74 by the drive of the stop plate 75 attached to the front end of the horizontal support beam.
Continue until it comes into contact with. When the front end of the movable table comes into contact with the stop plate 75, the movable table stops, and then the air cylinder 78 is activated and the second stop plate 80 is lowered. After that, the screw shaft 71,
71 is driven to lower the moving table 60. At this time, since the phototubes 90 and 91 attached to the moving table 60 and the horizontal support beam 74 detect the top surface of the stack of blank sheets stacked on the pallet 92, both phototubes 90 and 91 are flush with the top surface of the stack of blank sheets. When this happens, the lowering of the moving table 60 is stopped. In this state, when the moving table 60 is moved to its original position (backward) along the horizontal support beam 74, the stack of blank sheets placed on the moving table 60 is removed by the second stop plate 80. The horizontal movement is controlled and the sheet is placed on top of the stack of blank sheets. By repeating these operations, the stacks of blank sheets from which the wamps have been removed are stacked one after another on the pallet 92.

In addition, in the present invention, the wamp is removed from the top and bottom of the stack of blank sheets using a wamp removing device provided separately for the upper and lower parts of the wamp.
After cutting the wamp with a movable cutter device, a reversing machine is installed, and after first removing the upper wamp, the entire stack of blank sheets is reversed, the wump on the back side is moved to the front side, and the same wamp stripping device is used to remove the wump. Then, the wump that is reversed to its front side may be removed.

〔Effect of the invention〕

Since the present invention is configured as described above, it is possible to mechanically cut wrapping paper with a knife, which requires a very high labor burden and a long time for the worker, and is extremely labor-saving. It can have a big effect.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a bundle of blank sheets wrapped in a wamp, Fig. 2 is an overall side view of the device of the present invention, Fig. 3 is a perspective view of the loading device, and Fig. 4 is a perspective view of the main parts of the extrusion device. 5 is a perspective view of the wamp cutting device, FIG. 6 is a side view of the grip, FIG. 7 is a perspective view of the main parts of the adjacent portion of the fixed table and the movable table, and FIG.
Figures a and 8b are explanatory diagrams of the action of the sukkah, Figure 9 is a perspective view of the bar stacking device, Figure 10 is a perspective view of the main parts of the bar stacking device, and Figure 11 is a perspective view showing the structure inside the horizontal support beam. be. 1... Placement device, 2... Extrusion device, 3... Table, 4... Cutting device, 5... Wamp stripping device,
6... Bar stacking device, 11... Extrusion plate, 15... Fixed table, 24... Position regulating device, 34... Moving cutter device, 55... Delivery device, 61... Sucker, 63... Upper wamp stripping Device, 74...
Horizontal support beam, 60...Moving table, 92...Pallet.

Claims (1)

[Scope of Claims] 1. An extrusion device that extrudes packaged products placed on a mounting device one bundle at a time, a fixed table that receives the extruded packaged products, and a movable table that is connected to the fixed table. and a position regulating device for positioning the packaged product on the fixed table at a predetermined position, and a cutter device movably provided for cutting the four sides of the wamp of the positioned packaged product, the cutter device having the same height. Wamp up and down 2 in position
a lower wamp cutting device for cutting the lower wamp into parts; a lower wamp suction car installed between the fixed table and the movable table to adsorb and remove the lower wamp below the fixed table;
An automatic wamp stripping device comprising: an upper wamp picker provided above the movable table for sucking and removing the upper wamp upward; 2. The placing device places the packaged products one bundle at a time using a wamp, and also has a detector that detects the topmost packaged product, and uses the signal from this detector to determine the height of the packaged product. The automatic wamp stripping device according to claim 1, wherein the wamp stripping device is constant. 3. A detector is provided on the movable table that receives the packaged products from which the wamp has been removed, and which detects the top surface of the packaged products from which the wamp has been removed, which is stacked at the stacking position, and a signal from this detector is provided. The automatic wamp stripping device according to claim 1, further comprising a bar stacking device that moves the movable table and stacks the packaged products from which the wamps have been removed on the movable table in a stacking position. Device. 4. The wamp cutting device includes a fixed table, a movable cutter device movably provided along the four circumferences of the fixed table, and a packaged product extruded by the extrusion device, and holds the packaged product at a predetermined position on the fixed table. a movable grip device for moving the packaged product, a position regulating device for positioning the packaged product carried by the movable grip device in a predetermined position, and a position regulating device for positioning the packaged product carried by the movable grip device in a predetermined position, from the fixed table to the movable table of the bar stacking device after cutting the wamp with the cutter; 2. The automatic wamp stripping device according to claim 1, further comprising a delivery device for delivery. 5. The automatic wamp according to claim 4, wherein the movable cutter device includes cutters along two adjacent sides of the fixed table that are movable in directions toward and away from the sides of the fixed table. Stripping device. 6. The bar stacking device includes a moving table that is horizontally movable vertically and in the feeding direction of packaged products, a horizontal support beam for supporting and guiding the moving table in the horizontal direction, and a horizontal support beam for holding the horizontal support beam. The present invention includes a holding frame, a vertical movement mechanism for moving the holding frame up and down, and a regulating device for regulating the movement of the stack of blank sheets from which the wamps have been removed on the moving table so that they do not move in the horizontal direction. An automatic wamp stripping device according to claim 3, characterized in that: