JP3510151B2 - Unnecessary part removal device for punched paperboard - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punched paperboard unnecessary portion removing device which mechanically separates and removes unnecessary portions of a paperboard cut by a large number of stacked punches.

[0002]

2. Description of the Related Art As a conventional punched paperboard unnecessary portion removing apparatus of this type, a plurality of punches are stacked to move unnecessary portions of the edges of the paperboard from above to move backwards. It is already known to mechanically separate and remove a plurality of scraping blades by moving the scraping blades from the upper side to the lower side along the side surface of the paperboard (see, for example, Japanese Patent Publication No. 61-21137).

[0003]

However, the conventional punched paperboard unnecessary portion removing device (hereinafter simply referred to as a conventional example) has the following problems. In the conventional example, a scraping blade, a driving motor, and a scraping removal unit having a rotation transmission mechanism from the driving motor are moved up and down by an air cylinder, so that the height of a large number of punched paperboards is, for example, If it is about 1.5 m, the cylinder and guide shaft need to be extended upwards to a considerable height, so the height of the machine becomes extremely high, and a considerable space is required above it, which of course increases the size of the machine. Therefore, it required a high ceiling installation space. In addition, since the air cylinder is used as the drive source, if the air pressure of the air cylinder drops or the air cylinder malfunctions due to some trouble, the scraping unit will drop and be damaged, and also cause inadvertent injury to the human body. There was a risk. Further, since the air motor is used to drive the scraping blade, the rotation unevenness is remarkable.

In the above-mentioned conventional example, a large number of stacked punch paperboards are set before the operation, and the blades are set in advance. However, once the scraping work is started, the operation is in progress (in operation). Since it is not possible to adjust the position of the scraping blade with respect to the punched paperboard (setup changeover), for example, when the laminated paperboard is tilted during operation (in the actual work, the laminated paperboard is subject to shocks, vibrations, etc. during scraping). The position of the scraping blade with respect to the paperboard may be misaligned and scratching may be performed at a position where there is no need to scrape the paperboard, and the surface of the paperboard forming the box may be damaged. In such a case, in order to adjust the position of the scraping blade, it is necessary to perform extra work such as once stopping the operation, resetting it, and restarting the operation, which causes a problem of poor work efficiency.

In the above-mentioned conventional example, since the position of the scraping blade in the longitudinal direction is constant and the scraping blade cannot be adjusted in the longitudinal direction,
Unnecessary parts to be removed from the paperboard vary in shape depending on the box to be made, etc., and in many cases there are parts with shallow depth and unnecessary parts with deep depth, in which case the scraping blade is set in advance to the shallow part. Since it is done, when you scratch this with a scraping blade, you can scratch the shallow part at once,
Since the deep part cannot be removed unless it is scraped out a few times, it took time to scrape one sheet out, and it took a considerable time to remove all unnecessary parts of the laminated paperboard.

In the above-mentioned conventional example, since the unnecessary portion separated and removed from the laminated paperboard falls directly underneath, the unnecessary portion separated and removed is scattered and accumulated in the lower portion of the laminated paperboard, and the operator discards it. It took a considerable amount of labor to carry it to a box or the like.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and an object of the invention is to provide a punched paperboard unnecessary portion removing device capable of accurately separating and removing the unnecessary paperboard portion. Also, the lower elevating frame etc. can be properly moved up and down by the rodless cylinder and the balance weight, the installation space can be narrowed, and the paperboard unnecessary part removing unit can be adjusted left and right regardless of whether it is stopped or in operation, and any locking means can be used. It is possible to lock at a position, further displace the position to scrape the unnecessary part of the paperboard back and forth to shorten the scraping time, and to provide a punched paperboard unnecessary part removing device that can guide the separated unnecessary part with the lead-out plate To aim. In addition, a combination of this paperboard unnecessary portion removing device and a loading platform for displacing the position of the paperboard is used to set the position of the paperboard with respect to the paperboard unnecessary portion removing device, and a punch capable of separating and removing the unnecessary portions around the punched paperboard in order. An object of the present invention is to provide an unnecessary portion removing device for paperboard.

[0008]

According to a first aspect of the present invention, there is provided an apparatus for removing unnecessary portions of punched paperboard, which comprises a lower lifting frame for a paperboard unnecessary portion removing unit and an upper lifting frame provided with paper pressing means on the machine frame. Horizontal guide rails provided on the lower elevating frame. And a spline shaft, a paperboard unnecessary portion removing unit having scraping and removing means for separating and removing an unnecessary portion of the punched paperboard is axially movable, fixedly provided in the rotational direction, and provided in the lower lifting frame. The drive means is operatively provided with the scraping removal means of the paperboard unnecessary portion removing unit via the transmission mechanism, and the paperboard unnecessary portion removing unit can be operated as desired. Equipped with locking means that can be locked at each position, regardless of whether it is stopped or in operation, multiple paperboard unnecessary part removal units are set at arbitrary positions corresponding to the unnecessary parts of the paperboard, and a large number of paperboard unnecessary part removal units are stacked. It is characterized in that the punched paperboard is moved from the upper side to the downside along the side surface so that an unnecessary portion of the punched paperboard can be cut off and removed by a scraping means.

A punched paperboard unnecessary portion removing device according to a second aspect is the punched paperboard unnecessary portion removing device according to the first aspect, wherein a guide shaft and a rodless cylinder are provided upright in a machine frame as the driving elevating means. A lower elevating frame which is installed side by side on the guide shaft and can freely elevate and lower along with the elevating operation of the drive piston of the rodless cylinder, and a balance weight that balances the lower elevating frame is related to the lower elevating frame. It is characterized by having prepared.

An unnecessary part removing device for punched paperboard according to a third aspect is the device for removing an unnecessary part for punched paperboard according to the first aspect, wherein each of the paperboards is provided through a lateral long hole of a guide plate provided in the lower elevating frame. It is characterized in that the unnecessary portion removing unit is screwed with a locking means, and each of the paperboard unnecessary portion removing units provided on the guide rail and the spline shaft so as to freely slide can be tightened and locked at an arbitrary position.

A punch paperboard unnecessary portion removing device according to a fourth aspect is the punch paperboard unnecessary portion removing device according to the first aspect, wherein expansion and contraction adjustment of the scraping blade of the scraping means in the longitudinal direction is possible. It is characterized in that the scraping blade can be separated and adapted to the length of the unnecessary portion to be removed in the depth direction.

A punched paperboard unnecessary portion removing device according to a fifth aspect is the punched paperboard unnecessary portion removing device according to the first aspect, in which the unnecessary portion separated and removed by the scraping blade is guided to the outside of the machine. Is provided so as to move up and down in synchronization with the lower elevating frame.

The punched paperboard unnecessary portion removing device according to claim 6 is provided with a lower elevating frame for a paperboard unnecessary portion removing unit in a machine frame and an upper elevating frame provided with paper pressing means on the upper part thereof, and the lower part thereof is freely movable. The elevating frame is provided so as to be able to elevate and lower by the drive elevating means, and the upper elevating frame is free to elevate and lower separately from the lower elevating frame. A paperboard unnecessary portion removing unit having a scraping removing means for separating and removing the unnecessary portion of the above is provided axially movable and fixed in the rotational direction, and via a transmission mechanism by a driving means provided in the lower lifting frame. A paperboard unnecessary part removing device operably equipped with scraping removing means of the paperboard unnecessary part removing unit, and a stacking device for the paperboard unnecessary part removing device. It is characterized in that a combination of a stacking table with rotating and slidable positioning adjusting means for positioning the unnecessary portion of the punch paperboard is.

According to the punched paperboard unnecessary portion removing device of the present invention having the above-mentioned structure, a horizontal guide rail and a spline provided on a lower elevating frame provided on the machine frame so as to be elevating by a drive elevating means. A drive means provided in the lower lifting frame, which is movable in the axial direction and is fixedly provided in the lower elevating frame, with a paperboard unnecessary portion removing unit having a scraping removal means for separating and removing an unnecessary portion of the punched paperboard from the shaft. By means of which the scraping removing means of the paperboard unnecessary portion removing unit is operably provided via the transmission mechanism, and the locking means capable of locking the paperboard unwanted portion removing unit at an arbitrary position is provided, so that the scraping removing means is stopped, Regardless of whether it is in operation, set multiple unnecessary paperboard part removal units at arbitrary positions corresponding to the unnecessary paperboard parts, and stack a large number of unnecessary paperboard removal units The along the sides of the punch paperboard is moved from top to bottom, it can be accurately disconnected remove unnecessary portions of the punch paperboard. Further, the lower elevating frame is provided so as to be able to elevate and lower by the drive elevating means, and the upper elevating frame is free and can be raised and lowered separately from the lower elevating frame. It is not necessary for the scraping and removing means while pressing the center part of the paperboard against the punched paperboard stacked by the paper pressing means, and the lower elevating frame moving from the upper side to the lower side along the side surface of the laminated punched paperboard pressed by the paper pressing means. Parts can be removed.

According to the punched paperboard unnecessary portion removing device of the second aspect, the lower elevating frame in which the guide shaft and the rodless cylinder are vertically arranged side by side on the machine frame and the guide shaft is freely movable up and down. Since the rodless cylinder and the balance weight that balances the lower lifting frame are provided in association with the lifting piston of the drive piston of the rodless cylinder and are associated with the lower lifting frame, the lifting stroke is performed by the rodless cylinder and the balance weight. The balance can be achieved at any position, and the removal work of the paperboard unnecessary portion removing means can be stably performed. Even if a cylinder breaks down, the balance weight keeps the balance, so there is no risk that the lower lifting frame of the paperboard unnecessary portion removing means will fall. In addition, unlike a conventional air cylinder, since it is lifted by a rodless cylinder, there is no protruding member at all, so the height of the machine can be lowered and it can be made compact, so the ceiling side can be omitted in terms of space and installation. Conditional constraints are relaxed. Furthermore, since the electric motor is used as the drive source of the scraping means, not only the operating speed can be freely adjusted, but also uneven rotation does not occur at all, so that the scraping blade can always properly remove the unnecessary portion.

According to the punched paperboard unnecessary portion removing device having the above-mentioned structure, the locking means is screwed to each paperboard unnecessary portion removing unit through the lateral long hole of the guide plate provided in the lower elevating frame. In addition, each paperboard unnecessary part removal unit that is freely slidable on the guide rail and spline shaft can be tightened and locked at any position, so scraping off each paperboard unnecessary part removal unit can be performed regardless of whether it is stopped or operating. The removing means can be separated and each can be displaced and adapted to the optimum position of the unnecessary part to be removed, and even if the laminated paperboard tilts during operation, the scraping blade for the scraping part of the paperboard without stopping the machine The positional relationship of can be corrected. Therefore, the work of stopping the operation and resetting as in the conventional case becomes unnecessary, and the work efficiency can be improved.

According to the unnecessary part removing device of the punch paperboard having the above-mentioned structure, the scraping blade can be expanded and contracted in the longitudinal direction, and the scraping blade can be detached to remove the unnecessary part in the depth direction. By adjusting the length of each scraping blade according to the length of the unnecessary part that has various shapes depending on the box to be made, etc., The number of times of scraping long and short unnecessary portions can be reduced and scraped off, the scraping time can be shortened, and the scraping work can be efficiently performed.

According to the punched paperboard unnecessary portion removing device having the above structure, the lead-out plate for guiding the unnecessary portion separated by the scraping blade to the outside of the machine is moved up and down in synchronization with the lower lifting frame. Therefore, unnecessary portions that are continuously separated from above by scraping means and discharged downward are discharged onto the lead-out plate, and a dedicated waste box or the like is provided by a conveyor or the like provided in association with the lead-out plate. It can be sent automatically, the labor of the operator can be saved, and the labor can be reduced.

According to another aspect of the punched paperboard unnecessary portion removing device of the present invention, there is provided a paperboard unnecessary portion removing device,
Since the combination of the rotation and slidable positioning adjusting means for positioning the unnecessary portion of the stacked punch paperboards is combined, the stacking board on which the laminated paperboards are mounted is, for example,
By rotationally displacing by 180 degrees or 90 degrees,
It is possible to easily determine the surface of the scraping means for removing and removing the unnecessary portion from the scraping blade, and also to position the scraping blade to the unnecessary portion to be separated and removed by sliding the laminated paperboard to and from the scraping blade. Can be done easily. After that, each scraping blade is positioned with respect to each unnecessary portion, and the setting operation (setup) is completed. Therefore, the positioning of the scraping blade can be accurately adjusted with respect to the unnecessary portion around the punch board, for example, on both sides or on all sides, and the scraping blade can properly remove and remove the unnecessary portion.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a punched paperboard unnecessary portion removing device of the present invention will be described with reference to the drawings. 1 is an overall front view showing an example of an unnecessary portion removing device for punched paperboard of the present invention, FIG. 2 is an overall rear view thereof, and FIG. 3 is an overall side view thereof.
FIG. 4 is a partially cutaway side view of the lower elevating frame, the driving means and the paperboard unnecessary portion removing unit, FIG. 5 is a front view of the same, FIG. 6 is a sectional view of the drive side pulley of the paperboard unnecessary portion removing unit, and FIG. FIG. 8 is a front view of the laminated paperboard mounting portion, FIG. 10 is a front view showing an example of the same operating state, and FIG. 11 is a sectional view of FIG. FIG. 3 is a cutaway plan view of the same portion.

1 to 3, reference numeral 1 is an inverted U-shaped machine frame, in which a machine frame 1 is provided at the bottom of both side frame rods, a lower elevation frame 2 for a paperboard unnecessary portion removing unit and an upper elevation for paper holding means are provided above the machine frame 1. The frame 3 is freely lifted and lowered, the lower lift frame 2 is lifted and lowered by the driving lift means 4, and the upper lift frame 3 is free and lifted separately from the lower lift frame 2.

In FIGS. 1 to 5, as upper and lower means for the lower lifting frame 2 for the paperboard unnecessary portion removing unit 40 and the upper lifting frame 3 provided with the paper pressing means, both upper side parts 11 of the machine frame 1 and the lower receiving parts. A guide shaft 5 is vertically provided between the rodless cylinder 20 and the guide shaft 5, and a rodless cylinder 20 is provided between the upper and lower receiving portions 13 and 14 at the rear of the guide shaft 5 as a drive elevating means 4. And are arranged in parallel. The rodless cylinder 20 is provided with a magnetic drive piston 22 that moves up and down inside a non-magnetic cylinder 21, air intake and exhaust holes 23 and 24 are provided in the upper and lower portions, and when drive air flows into the upper portion of the drive piston 22. The lower air is exhausted to the atmosphere by a solenoid valve (not shown), and the drive piston 22 is lowered at a desired speed. Reference numeral 25 is a base provided at the lower end of the machine frame 1 of the unnecessary portion removing device for punched paperboard, and is a caster 2 for moving the frame body.
6. A frame fixing cylinder 28 having a brake butt 27 is provided.

The lower elevating frame 2 has a U-shaped cross section, and as means for freely elevating and lowering the machine frame 1, guide bearings 15 are fixed to the rear portions of both sides of the frame 2, and the guide bearings 15 provide guides for the machine frame 1. A cylindrical body which is rotatably supported on the shaft 5 and has a magnetic body 16a provided as a driving and raising / lowering means for the lower raising / lowering frame on the outer periphery of the cylinder 21 of the air cylinder 20 at the rear of the guide bearing 15 so as to be freely raised and lowered. 16 is provided, and the cylindrical body 16 having the magnetic body 16a at the rear portion of the lower elevating frame 2 is driven by the drive piston 22 by moving up and down the drive piston 22 of the magnetic body inside by intake and exhaust of air from the air cylinder 20. It is equipped to move up and down in cooperation with the magnetic force of. The boardless portion removing unit 40 is moved up and down at a preset speed by the operations of starting, accelerating, decelerating, and stopping the rodless cylinder 20.
A balance weight 75, which will be described later, is provided in association with the lower lifting frame, and the lower lifting frame is lifted and lowered by the rodless cylinder 20. In this embodiment, since the frame provided with the paperboard unnecessary portion removing unit 40 is moved up and down by the rodless cylinder 20, unlike the conventional air cylinder, there is no protruding member to the upper side, so that the height of the machine can be lowered, Since it can be made compact, the ceiling side can be omitted in terms of space and the restrictions on installation conditions can be relaxed. Although the rodless cylinder is used as the driving elevating means, the invention is not limited to this, and an air cylinder may be used.

Guide bearings 17 are fixed to the rear portions of both sides of the upper lifting frame 3, and the guide bearings 17 support the guide shaft 5 so that it can be lifted and lowered freely.
It descends by its own weight and moves separately from the lower lifting frame 2. That is, regardless of the height of the stacked paperboard A, the upper lifting frame 3 descends and stops until it abuts against the upper surface regardless of the height of the stacked paperboards A, and stops at that position. The paper is pressed by the weight of the pressing means.

1, 4, and 5, as a drive mechanism for driving the paperboard unnecessary portion removing unit 40, the lower elevating frame 2 has driving means, the spline shaft 7 rotatably driven by the driving means, and the paperboard unnecessary portion. Removal unit 40
And a guide mechanism such as the guide rail 6 and the guide portion 48. The rotation transmission mechanism 31 for the spline shaft 7 by the drive motor 30 of the drive means is a drive motor 3 such as an inverter-equipped motor provided on the lower lifting frame 2.
The drive pulley 33 provided on the drive shaft 32 of 0 and the driven pulley 34 at one end of the spline shaft 7 are linked by the rotation transmission belt 35 so that the spline shaft 7 can be rotationally driven. Since the electric motor is used as the drive source of the scraping means, not only the operating speed can be freely adjusted, but also uneven rotation does not occur at all, so that the scraping blade can always appropriately remove the unnecessary portion. The rotation transmission mechanism is not limited to belt transmission, but may be transmission by gears or chains, for example. Reference numeral 36 is a bearing of the drive shaft 32.

The paperboard unnecessary portion removing unit 40 is a scraping removing means 41 for separating and removing the unnecessary portion a of the punch paperboard A.
And a driving means 30 such as a motor provided in the lower lifting frame 2.
And a drive transmission mechanism 42 that can be driven by a horizontal guide rail 6 provided on the front surface of the lower elevating frame 2 and bearings 8 on both sides at a certain distance in front of the guide rail 6. The drive transmission mechanism 42 is configured to be movable in the axial direction and fixedly in the rotation direction with the spline shaft 7 provided in parallel with the spline shaft 7, and to rotationally drive the spline shaft 7 by the driving means 30 such as a motor provided in the lower lifting frame 2. The scraping removal means 41 is moved through the scraping. The drive transmission mechanism 42 includes a drive side pulley 43, a driven side pulley 44, and a rotation transmission belt 45.

4 to 6, the paperboard unnecessary portion removing unit 40 comprises a sliding member 46, a drive transmission mechanism 42 for the scraping removing means 41, a tool rest 47 having a scraping blade, and the like, and a tool rest 47. The rear portion is supported by the guide rail 6 so as to be movable in the axial direction, and the sliding body 46 provided at the front portion thereof is fixed to the spline shaft 7 in the rotational direction and freely slidable in the axial direction. A sliding body 46 fixed to the spline shaft 7 in the rotational direction is rotatably provided, and the spline shaft 7, the sliding body 46 and the drive pulley 43 are integrally rotatable. That is, the slide body 46 has a pulley holding surface 46a on one side of the outer periphery for connecting the drive side pulley 43 of the drive transmission mechanism 42 with a key 49 or the like, and a tool rest 47 on the other side for bearings 50.
And a bearing surface 46b that is rotatably provided, and a spline bearing 51 is fixed to the inner periphery by a key 51a or the like, and the sliding body 46 is fixedly coupled to the spline shaft 7 in the rotational direction by the spline bearing 51. However, it is provided so that it can slide only in the axial direction, the drive side pulley 43 is provided on the pulley holding surface 46a of the sliding body 46 via the key 49, and the tool rest 47 is provided on the bearing surface 46a via the bearing 50. A recessed guide portion 48 that can be fitted to the guide rail 6 is integrally fixed to the rear portion of the tool rest 47 with a screw, and the guide portion 48 at the rear portion of the tool rest 47 has a U-shaped cross section. It is supported movably in the axial direction with respect to a guide rail 6 fixed to the front surface of the lower lifting frame 2 with screws. 52 is a stopper plate for fixing the bearing 50 in the lateral direction. Thus, in the paperboard unnecessary portion removing unit 40, the rear guide portion 48 is supported movably in the axial direction with respect to the guide rail 6, and the front slide body 46 is fixed to the spline shaft 7 in the rotational direction. It is slidably supported in the axial direction, and by the rotational driving of the spline shaft 7, the scraping removal means 41 performs a scraping motion via the drive transmission mechanism 42 of the paperboard unnecessary portion removing unit 40.

In FIGS. 7 and 8, the scraping blade 5 is provided below the tool rest 47 as a driving mechanism of the scraping means 41.
A rotary shaft 54 which rotatably supports the base end of 8 is rotatably supported by a bearing 55, and the rotary shaft 5 immediately below the drive pulley 43.
4, a driven side pulley 44 is rotatably supported, and the driven side pulley 4
A belt 45 for transmission of rotation is stretched between the driven pulley 3 and the driven pulley 44, and the drive by the drive motor 30 is driven by the spline shaft 7, the spline bearing 51, and the sliding body 4.
The drive pulley 43 and the driven pulley 44 are rotated via 6 to rotate the rotary shaft 54. A crankshaft 56, which is eccentrically fixed to one end of the rotary shaft 54, is provided with a base end of a pair of arm plates 57 for attaching scraping blades to a bearing 5.
6a is interposed so as to be eccentrically rotated with respect to the rotary shaft 54, and a saw-toothed blade portion 58 is provided at the tip of the arm plate 57.
A scraping blade 58 provided with a at the tip is attached by a long hole 59 and a tightening bolt 60 so that expansion and contraction can be adjusted in the longitudinal direction. The scraping blade 58 has a support body 47 a integrally provided on the tool rest 47 at one end between the scraping blade 58 and the crankshaft 56, and an upper portion of the point plate 62 on the shaft 61.
Of the unnecessary portion a to be removed by the rotation of the rotary shaft 54 by the rotation of the rotary shaft 54. The drive means draws one locus so that the unnecessary portion a is cut off from the useful portion of the paperboard when it bites from above and moves backward. The pair of scraping blades 58 scrapes alternately.

That is, the drive belt 35 is stretched between the driven pulley 34 for rotation transmission fixed to one end of the spline shaft and the drive pulley 33 fixed to the drive shaft of the drive motor to rotate the drive motor. Is transmitted to the spline shaft 7, the scraping blade 58 of each paperboard unnecessary portion removing unit 40 is rotated via the drive pulley, the rotation transmission belt, and the driven pulley.
The rotation of 4 causes the tip blade portion to move in a vertical and vertical direction along the eccentric rotation of the crankshaft 56 through the arm plate 57 and the point plate 62 (see arrow f in FIG. 14, for example). ) The tip blade portion bites into the unnecessary portion a to be removed from above, and the unnecessary portion a is surely separated and removed by retreating while pressing downward so as not to remove this biting. The tip blade portion 5
By repeating the movement of 8 at a constant speed and descending, the unnecessary portion a is formed on one side of a plurality of laminated paperboards A.
Is continuously cut off from above and removed. In addition, when the two scraping blades 58 are paired in the separating / removing operation of the unnecessary portion a, if the movements of the tip blade portions are alternately performed as shown in the drawing, the separating / removing is performed. Can be done more reliably.

As means for adjusting the length of the scraping blade 58, the saw blade-shaped blade portion 5 with respect to the screw hole of the arm plate 57 is used.
8a is moved forward and backward through the long hole 59 of the scraping blade 58 having the tip 8a to adjust the expansion and contraction in the longitudinal direction, and the tightening bolt 60
Can be tightened by screwing into the screw hole through the long hole 59, and the scraping blade 58 can be adapted to the length in the depth direction of the unnecessary portion a to be separated and removed. By adapting the length of each scraping blade according to the length of the unnecessary part that has a variety of shapes, it is possible to reduce the number of times of scraping the long and short unnecessary parts and remove it. The scraping time can be shortened and the scraping work can be performed efficiently.

In FIGS. 1 and 4, the locking means 7 for locking the paperboard unnecessary portion removing unit 40 at an arbitrary position.
0, and sets a plurality of paperboard unnecessary portion removing units 40 at arbitrary positions corresponding to the unnecessary portions a of the paperboard A regardless of whether the paperboard A is not operating or not operating.
A number of 0s are moved from the upper side to the lower side along the side surface of the stacked punch paperboards A so that unnecessary portions of the punch paperboards can be cut and removed by scraping means. That is, each of the paperboard unnecessary portion removing units 40 is provided with a positioning long hole 72 in a lateral direction in a guide plate 71 provided at a lower portion of the lower elevating frame 2, and a handle 73 as a locking means to the tool rest 47 through the long hole 72. The clamping screws are screwed together, and the handles 73 are operated from the back side to clamp and lock each tool rest 47 at a position corresponding to an unnecessary portion of the paperboard so that the respective positions can be determined. In the embodiment, the four sets of paperboard unnecessary portion removing units 40 are arranged such that the tool rests on both sides are located inside the pulleys, respectively, so that the tool rests in the center can be brought close to each other. Although the positions of the pulley and the tool rest are opposite on both sides of the tool rest, the present invention is not limited to this, and the pulley and the tool rest may be arranged in the same position, for example. The arrangement of the pulley and the tool rest can be the most suitable arrangement for removing unnecessary portions of the paperboard.

In FIG. 2, the lower elevating frame 2 having the paperboard unnecessary portion removing unit 40 and the like balances with the balance weight 75 so that the rodless cylinder 20 can vertically move the paperboard unnecessary portion removing unit 40 in a well-balanced manner. It is like this. That is, the lower elevating frame 2 including the paperboard unnecessary portion removing unit 40 and the balance weight 75 are provided in a tendency to be suspended by the weight chain 76 via the weight sprocket gear 77 provided at the upper end of the machine frame 1. Therefore, the lower elevating frame 2 provided with the paperboard unnecessary portion removing unit 40 and the weight 75 are always interlocked with each other and are stationary at any position.

Since the present invention is constructed as described above, the drive belt 35 is provided between the rotation transmission pulley 34 fixed to one end of the spline shaft 7 and the drive pulley 33 fixed to the motor shaft of the drive motor 30. By transmitting the rotation of the driving motor 30 to the spline shaft 7 by straddling it, the scraping blades 5 of the paperboard unnecessary portion removing unit 40 are removed.
Reference numeral 8 denotes an arm plate whose tip blade portion moves up and down and front and back in combination with the eccentric rotation of the crankshaft 56 due to the rotation of the rotary shaft 54 which is rotated via the drive side pulley 43, the rotation transmission belt 45 and the driven side pulley 44. It operates by drawing a certain trajectory through 57 and the point plate 62 (see arrow f in FIG. 14, for example), and the tip bites into the unnecessary portion a to be removed from above so that this biting does not come off. Unnecessary part a by pushing backward while retracting
Surely separate and remove. By repeating the movement of the tip blade portion while repeating the movement at a constant speed, the unnecessary portions a are continuously separated and removed from one side to one side on one side surface of a plurality of laminated paperboards A. In addition,
When a pair of two scraping blades 58 is used in the separating / removing operation of the unnecessary portion a, if the movements of the tip blade portions are alternately performed as shown in the drawing, the separating / removing operation is further performed. You can definitely do it.

In FIG. 3, an unnecessary portion dropping side of the laminated paperboard A, that is, a back side, is provided with a lead-out plate 100 for guiding the unnecessary portion a separated by the scraping blade 58 to the outside of the paperboard unnecessary portion removing unit 40. It is provided so as to move up and down in synchronization with the lower lifting frame 2 provided. The lead-out plate 100 is a support portion 1 that is freely fitted in the guide shaft 5 so as to be vertically movable.
The shaft of both ends is rotatably supported by 02, and the lower elevating frame 2 and the front portion of the leading plate 100 are pivotally supported by a chain 101 so that the tilt angle of the leading plate 100 can be freely displaced. In the embodiment, the lead-out plate 100 and the guide plate 71 of the lower elevating frame 2 are connected by a connecting chain 101 or the like whose length can be adjusted, and the lead-out plate 100 is synchronized with the paperboard unnecessary portion removing unit 40 to have a constant inclination angle. It is provided so that it can be lowered by its own weight while being kept and pulled up. In addition, when the lead-out plate 100 descends and comes into contact with the ground, the lead-out plate 100 is made horizontal. Although the lead-out plate 100 is hung on the guide plate, the lead-out plate 100 is not limited to this and may be hung so that it can be synchronized with the lower elevating frame.

In the figure, reference numeral 105 denotes a pressing plate for laminated paperboard A,
Lower lifting frame 2 of the paperboard unnecessary portion removing unit 40
L fixed to the upper lifting frame 3 provided separately on the upper part of the
It is provided below the tip of the mold arm rod 106. The upper elevating frame 3 is supported by guide shaft bearings 17 on both sides of the upper and lower elevating frames 3 so as to be vertically movable. The lower elevating frame 2 is lowered and the upper elevating frame 3 is lowered by its own weight. Is laminated paperboard A
It stops by contacting the upper surface of the upper and lower frames 3 and arm rods 1.
With the weight of 06, the center of the upper surface of the laminated paperboard A is pressed, and after the work is completed, the lower elevating frame 2 is lifted to lift the upper elevating frame 3 to press the pressing plate 105 to the laminated paperboard A.
Away from the top surface of. A bar 107 for setting the laminated paperboard A is provided on the machine frame 1 so as to be capable of undulating, and the tip thereof receives the unnecessary portion of the laminated paperboard A at a scraping position. Thus, the paper pressing plate 105 includes the upper lifting frame 3 and the arm rod 10.
Since it is pressed by the weight of 6 or the like, the upper surface of the paperboard can be pressed by lowering it until the paper pressing plate hits regardless of the height of the laminated paperboard. In the conventional paper presser using an air cylinder, the protrusion is made upward in order to lengthen the stroke in order to cope with the height difference of the laminated paperboard.However, according to the configuration of the present invention, the upper lifting frame and the paper presser means are attached by their own weight, so It doesn't stick out. In addition, although the setting bar is provided so as to be erected, the setting bar is not limited to this, and the setting bar may have a structure capable of being horizontally expanded and contracted.

9 to 11, the unnecessary portion a to be removed by cutting off the laminated paperboard A from the scraping blade 58 of the paperboard unnecessary portion removing unit 40 is placed on the stacking board 81 of the punched paperboard A stacked on the pallet 80. A positioning and adjusting means 82 that is rotatable and slidable for positioning is provided.
That is, a plurality of rotating free bears 84 having a spherical roller 83 are provided as means for facing the surface of the laminated paperboard A for cutting off and removing the unnecessary portion a toward the scraping blade 58 of the paperboard unnecessary portion removing unit 40. A turntable 86 having a rotary plate 85 mounted thereon was provided, and provided on the turntable 86 as a means for determining the positional relationship between the unnecessary portion a of the laminated paperboard A and the scraping blade 58 of the paperboard unnecessary portion removing unit 40. A rail 90 provided on the lower portion of a roller conveyor 89 having a plurality of rod-shaped rollers 88 arranged in parallel on the upper ends of both ends is fitted into the guide groove portion 87 and placed thereon to adjust the slide of the laminated paperboard A with respect to the scraping blade 58 (contact / separation adjustment). Is possible. In the figure, 91 is an air cylinder for fixing the rotation of the turntable 86, and 92 is an air cylinder for fixing the pallet.

An example of a usage state in which the stacking board 81 for punched paperboard A is combined with an unnecessary portion removing device for paperboard will be described. A rodless cylinder 20 is used when not in use.
By the unit 4 for removing unnecessary parts of the paperboard of the lower lifting frame 2
0 is at the upper limit position, and the pressing plate 105 of the upper lifting frame 3 above it is also set at the upper limit position. Therefore, the paperboard A stacked on the pallet 80 is transported by a forklift or the like and placed on the roller conveyor 89, and the positioning is performed by the rotation by the turntable 86 and the slide by the roller conveyor 89 in the front-back direction, and the setting bar 107. After laying down and sliding the laminated paperboard A until it hits, the scraping unit 40 is placed in the long hole 72 of the guide plate 71 of the lower elevating frame 2 depending on the shape of the unnecessary portion a of the laminated paperboard A to be cut and removed. After positioning along the lateral direction (horizontal direction) along with locking by tightening each handle 73, and positioning the scraping blade 58 in the longitudinal direction (front-back direction) by the long hole 59 and the tightening bolt 60. , The rodless cylinder 20 is activated to lower the lower lifting frame 2, and the paper pressing plate 1 of the upper lifting frame 3 5 pressing the laminated board A, start the drive motor 30 scraping blades 58 of the paperboard unnecessary portion removal unit 40
Is operated to lower and lower the lower elevating frame 2, and the scraping blade 58 automatically separates and removes the unnecessary portion a from the upper portion to the lower portion. At this time, the lead-out plate 100
Is also synchronized with the lower elevating frame 2 and descends, so that the unnecessary portion a removed is led out of the machine by the lead-out plate 100.
From 00 to the waste housing, the unnecessary parts discharged to the lead-out plate 100 are automatically sent to the waste housing by a belt conveyor (not shown).

When the unnecessary portion on one surface has been removed by the scraping removal operation, the unnecessary portion on the four sides (four sides) of the laminated paperboard A is cut off after returning the unnecessary portion 40 for removing the paperboard to the upper limit position. 86 is rotated by 90 degrees, and when the unnecessary portions on both sides (two surfaces) of the laminated paper board A are to be cut off, they are turned over by 180 degrees, and the positioning and the cutting off with respect to the other surface are performed according to the above-mentioned reason. In the work of removing the unnecessary portion, if the laminated paperboard A is tilted due to impact, vibration, or the like and the positioning of the scraping blade 58 and the unnecessary portion a is misaligned, the scraping work may be performed or not. The paperboard unnecessary portion removing unit 40 is operated from the back side of the machine without operating the tightening screw of the handle 73 to stop the operation.
Can be moved to the left and right to adjust the position of the scraping blade, and even if the paperboard is tilted, the useful part b can be scraped off without damaging it, and only the unnecessary part to be separated can be accurately separated. Adjust the expansion and contraction of the scraping blade 58 in the longitudinal direction,
The length of each scraping blade is adjusted according to the length of the unnecessary part that has various shapes depending on the box etc. to be made. It can be scraped and removed, the scraping time can be shortened, and the scraping work can be performed efficiently.

FIGS. 12 to 14 show an example of a punched paperboard in which unnecessary portions are removed. FIG. 12 shows a large number of laminated paperboards which are cut by punches before the unnecessary portion a is removed. a is an unnecessary portion, b is a useful portion, c is a break, d is a fold, e is a joint portion, and FIG. 13 is a paperboard A from which the unnecessary portion a is removed, and FIG. 14 is the removed unnecessary portion. Only part a is shown.

Although an example of the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various embodiments can be implemented without departing from the gist of the present invention. For example, in the embodiment, a manual operation method is used as a means for displacing a plurality of scraping blades to adjust the displacement to an optimum position of an unnecessary portion to be removed even during operation, but it may be an automatic method. Further, in the embodiment, the lead-out plate for guiding the separated unnecessary portion to the outside of the machine is lowered by its own weight, but it may be integrated with the lower elevating frame to cooperate with each other. Further, although two scraping blades 58 are provided as a pair, the scraping blades 58 are not limited to this, and may be one or two or more.

[0041]

According to the punched paperboard unnecessary portion removing device of the first aspect of the present invention, the punched paperboard is provided on the horizontal guide rails and the spline shaft provided on the lower elevating frame which is moved up and down by the driving means. A paperboard unnecessary portion removing unit provided with scraping removing means for separating and removing the unnecessary portion is provided axially movable and fixed in the rotational direction, and the paperboard is transmitted through a transmission mechanism by a driving means provided in the lower lifting frame. Since the scraping removing means of the unnecessary portion removing unit is operably provided and the locking means for locking the paperboard unnecessary portion removing unit at an arbitrary position by the locking means is provided, the scraping removing means can be operated while stopped or in operation. In spite of this, a plurality of paperboard unnecessary part removal units are set at arbitrary positions corresponding to the unnecessary parts of the paperboard, and a pan having a large number of paperboard unnecessary part removal units is stacked. Along the sides of the paperboard is moved from top to bottom, it can be accurately disconnected remove unnecessary portions of the punch paperboard. Further, the lower elevating frame is provided so as to be able to elevate and lower by the drive elevating means, and the upper elevating frame is free and can be raised and lowered separately from the lower elevating frame. It is not necessary for the scraping and removing means while pressing the center part of the paperboard against the punched paperboard stacked by the paper pressing means, and the lower elevating frame moving from the upper side to the lower side along the side surface of the laminated punched paperboard pressed by the paper pressing means. The parts can be removed accurately.

According to the punched paperboard unnecessary portion removing device of the second aspect of the present invention, the guide shaft and the rodless cylinder are vertically arranged side by side on the machine frame, and the guide shaft is provided with the lower elevating frame which is vertically movable. Prepared to move up and down in conjunction with the lifting movement of the drive piston of the rodless cylinder,
In addition, since the balance weight that balances the lower lifting frame is provided in association with the lower lifting frame, the rodless cylinder and balance weight can balance at any position during the lifting stroke, and the removal work of the scraping removal means is stable. You can do it. Even if a cylinder breaks down, the balance weight keeps the balance, so there is no risk of the lower lifting frame of the paperboard unnecessary section removing unit falling. In addition, unlike a conventional air cylinder, since it is lifted by a rodless cylinder, there is no protruding member at all, so the height of the machine can be lowered and it can be made compact, so the ceiling side can be omitted in terms of space and installation. Conditional constraints are relaxed. Furthermore, since the electric motor is used as the drive source of the scraping means, not only the usage speed can be freely adjusted,
Since there is no uneven rotation, the scraping blade can always properly remove the unnecessary portion.

According to the punched paperboard unnecessary portion removing device of the third aspect of the present invention, the locking means is screwed into each paperboard unnecessary portion removing unit through the lateral long hole of the guide plate provided in the lower elevating frame. Then, it is possible to tighten and lock each paperboard unnecessary portion removal unit provided on the guide rail and the spline shaft in a freely slidable manner.
The scraping removal means of each paperboard unnecessary portion removing unit can be cut off regardless of the operation, and each can be displaced and adapted to the optimum position of the unnecessary portion to be removed, and even if the laminated paperboard tilts during operation, the machine It is possible to correct the positional relationship of the scraping blade with respect to the scraping portion of the paperboard without stopping. Therefore, the work of stopping the operation and resetting as in the conventional case becomes unnecessary, and the work efficiency can be improved.

According to the punched paperboard unnecessary portion removing device of the fourth aspect of the present invention, the length in the depth direction of the unnecessary portion to be removed by separating the scraping blade by allowing the scraping blade to expand and contract in the longitudinal direction. Since it is adapted to
The length of each scraping blade is adjusted according to the length of the unnecessary part that has various shapes depending on the box etc. to be made. It can be scraped and removed, the scraping time can be shortened, and the scraping work can be performed efficiently.

According to the punched paperboard unnecessary portion removing device of the fifth aspect of the present invention, the lead-out plate for guiding the unnecessary portion separated by the scraping blade to the outside of the machine is moved up and down in synchronization with the lower elevating frame. Since it is provided, unnecessary parts that are continuously separated from above by scraping means and removed are discharged onto the lead-out plate, and automatically transferred to a dedicated waste box or the like by a conveyor provided in association with the lead-out plate. Can be sent to
The labor of the operator can be saved and the labor can be reduced.

According to the punched paperboard unnecessary portion removing device of the sixth aspect of the present invention, there is provided a paperboard unnecessary portion removing device and a rotatable and slidable positioning adjusting means for positioning the unnecessary portion of the stacked punch paperboards. Since it is combined with a loading platform provided, laminated paperboard can be used, for example, 180 degrees or 90 degrees.
By rotating and displacing each time, it is possible to easily determine the separation and removal surface of the scraping blade of the scraping blade, and the laminated board should be separated by sliding with respect to the scraping blade. The scraping blade can be easily positioned with respect to the unnecessary portion. After that, each scraping blade is positioned with respect to each unnecessary portion, and the setting operation (setup) is completed. Therefore, the positioning of the scraping blade can be accurately adjusted with respect to the unnecessary portion around the punch board, for example, on both sides or on all sides, and the scraping blade can properly remove and remove the unnecessary portion. Therefore, it is possible to reduce the installation space due to the downsizing of the machine, optimize the unnecessary portion removing operation, and improve work safety.

[Brief description of drawings]

FIG. 1 is an overall front view showing an example of an unnecessary portion removing device for punched paperboard of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a partially cutaway side view of a lower elevating frame, a drive unit, and a paperboard unnecessary portion removing unit.

FIG. 5 is a front view of the same.

FIG. 6 is a cross-sectional view of a drive-side pulley of the paperboard unnecessary portion removing unit.

FIG. 7 is a partially cutaway side view of the scraping blade.

8 is a cross-sectional view taken along line XX of FIG.

FIG. 9 is a front view of a laminated paperboard mounting portion.

FIG. 10 is a front view showing an example of the same operating state.

FIG. 11 is a cutaway plan view of the same portion.

FIG. 12 is a perspective view showing a state before removing an unnecessary portion of the paper board.

FIG. 13 is a perspective view showing a state where the unnecessary portion is removed.

FIG. 14 is a perspective view of only the removed unnecessary portion.

[Explanation of symbols]

2 Lower lifting frame 3 Upper lifting frame 5 Guide shaft 6 Guide rail 7 Spline shaft 20 rodless cylinder 30 motor 40 Paperboard unnecessary part removal unit 58 scraping blade 59 long hole 60 tightening bolts 70 Locking means 72 Positioning long hole 75 Balance Weight 86 turntable A paperboard a Unnecessary part

Claims (6)

(57) [Claims] 1. A machine frame is provided with a lower lifting frame for a paperboard unnecessary portion removing unit and an upper lifting frame provided with a paper pressing means on the upper part thereof so that the lower lifting frame can be lifted by a driving lifting means. Moreover, the upper lifting frame is free and can be lifted up and down separately from the lower lifting frame, and the horizontal guide rail and the spline shaft provided on the lower lifting frame are provided with scraping removal means for separating and removing unnecessary portions of the punch board. The paperboard unnecessary part removal unit provided is movable in the axial direction and fixedly provided in the rotation direction,
Further, a driving means provided in the lower lifting frame is operatively provided with a scraping removing means of the paperboard unnecessary portion removing unit via a transmission mechanism, and a locking means capable of locking the paperboard unnecessary portion removing unit at an arbitrary position, Regardless of whether it is stopped or in operation, multiple paperboard unnecessary part removal units are set at arbitrary positions corresponding to the unnecessary parts of the paperboard, and a plurality of paperboard unnecessary part removal units are moved upward along the side of the stacked punched paperboard. The punch paperboard unnecessary portion removing device is characterized in that the unnecessary portion of the punch paperboard is separated by a scraping device and removed. 2. As the drive elevating means, a guide shaft and a rodless cylinder are vertically arranged side by side on a machine frame, and a lower elevating frame which is freely elevating on the guide shaft is interlocked with the elevating operation of a drive piston of the rodless cylinder. 2. The punched paperboard unnecessary portion removing device according to claim 1, further comprising a balance weight which is provided so as to be capable of moving up and down and which balances the lower lifting frame in association with the lower lifting frame. 3. A guide means provided in the lower elevating frame is provided with a laterally elongated hole, and a locking means is screwed into each paperboard unnecessary portion removing unit, so that no paperboard is slidably provided on the guide rail and the spline shaft. 2. The unnecessary portion removing device for punched paperboard according to claim 1, wherein the portion removing unit can be tightened and locked at any position. 4. The scraping means is capable of adjusting expansion and contraction in the longitudinal direction of the scraping blade so that the scraping blade can be separated and adapted to the length of the unnecessary portion to be removed in the depth direction. The punched paperboard unnecessary portion removing device according to claim 1. 5. A lead-out plate for guiding an unnecessary portion separated and removed by the scraping blade to the outside of the machine is provided so as to move up and down in synchronization with the lower lifting frame.
Unnecessary portion removing device for punched paperboard described. 6. A machine frame is provided with a lower lifting frame for a paperboard unnecessary portion removing unit and an upper lifting frame provided with a paper pressing means on its upper part so that it can be lifted and lowered, and the lower lifting frame can be lifted by a driving lifting means. In addition, the upper lifting frame is free and can be lifted up and down separately from the lower lifting frame, and the horizontal guide rail and the spline shaft provided on the lower lifting frame are provided with a scraping removing means for separating and removing unnecessary portions of the punch board. The provided paperboard unnecessary portion removing unit is movable in the axial direction and fixed in the rotation direction, and the scraping removal means of the paperboard unnecessary portion removing unit is operated via the transmission mechanism by the driving means provided in the lower lifting frame. And a paperboard unnecessary portion removing device provided for positioning the unnecessary portion of the punched paperboard laminated with respect to the paperboard unnecessary portion removing device. Unnecessary portion removing device of the punch paperboard, characterized in that a combination of a stacking table which includes a rolling and slidable positioning adjusting means.