JPH08174496A - Method and device for separating case manufacturing paper - Google Patents

Abstract

PURPOSE: To quietly and continuously perform cutting and separating work of a case manufacturing paper at a high speed by performing cutting and separating work of the case manufacturing paper punched at contacts of two rollers of cylinders to perform rotary circular motion by a punching device while partially remaining connecting parts, and on which a main paper and a waste paper are formed. CONSTITUTION: A separating device to be arranged on the back flow of a feeding device on which a plurality of case manufacturing papers 7 on which a main paper and a waste paper are formed while partially remaining connecting parts, and for conveying the case manufacturing papers 7 from the upper part one by one is provided with two rollers 1, 2 faced to each other, and to be synchronously rotated in the opposite directions. The peripheral surfaces of respective rollers 1, 2 are sequentially meshed with each other according to the rotation of the rollers. A plurality of cut pieces 3, 4 as projecting bodies projecting from the roller peripheral surfaces are provided. When the case manufacturing papers 7 are made to sequentially pass between two rotating rollers 1, 2, the connecting part of the case manufacturing paper 7 is sequentially cut by the cut pieces 3, 4, and the paper 7 is separated into a main paper 8 and a waste paper 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for separating box-making paper in a manufacturing process for boxes, which are packaging materials for articles, and its apparatus, and more specifically, it leaves a joint part in advance by a punching device. The present invention relates to a cutting method and an apparatus for cutting a box-forming paper, which is punched and formed with a required paper and a waste paper, which is an unnecessary portion, into a main paper and a waste paper by cutting the connecting portion. is there.

[0002]

2. Description of the Related Art A joint portion of a box-making sheet, which is punched by a flat plate punching device and leaves joint portions in some places and forms necessary paper and waste paper, is cut. Then, the work (dust removal) for separating the main paper and the waste paper includes an artificial method and a mechanical method.

The former is a case where a box punching device or the like is used to stack box-making sheets punched by leaving a connecting portion (about 0.5 mm) in place in advance at a height of about 1 m, and at the peripheral portion of the box-making sheet. After making a cut in several places with a circular saw or grinder etc. on a certain scrap paper part, the scrap paper part is peeled off by the strength of the arm while striking the scrap paper part with a hammer etc., the latter is on the entire surface of the box making paper. Place the convex and concave molds of the same size up and down, and feed the box-making paper punched out in advance on the concave mold one by one, or feed in a plurality of them for accurate alignment, and then press the convex mold. By lowering it, the joint portions left in places of the box-making paper are cut all at once.

[0004]

However, in the former method, fatigue due to long-time work, fatigue due to simple work, and the like cause a decrease in efficiency and working time, as well as a rise in personnel costs and personal convenience. It is becoming increasingly difficult to secure a stable workforce due to vacations, etc.

On the other hand, in the latter method, since the connecting portion is cut all at once, the convex type and the concave type have a size corresponding to the entire surface of the box-making paper and are flat plate types of 1 m ² or more. The entire device that will be attached to the frame that moves this mold up and down and work will be
A mechanism for correctly feeding the box-making paper onto the concave mold, a mechanism for temporarily stopping the feeding of the box-making paper, a mechanism for lowering the mold and cutting the connecting portions left in places of the box-making paper, and again. Since a mechanism for starting transportation must be provided, a large space is required because it occupies a considerable floor area. In addition, it is necessary to move these large molds up and down and to stop the feeding of the box-making sheet at the moment of cutting, and therefore, an operation and stop mechanism that must be repeated every time the box-making sheet is cut and separated. Therefore, it must be a device that requires very large horsepower. In addition, each time the shape of the box is changed, a large set of flat plate formwork dedicated to that box is required, making it difficult to store various changed formwork, and changing and mounting the form is also troublesome. However, it has a disadvantage that it is difficult to deal with various types of box-making paper at a high cost.

As described above, the mechanical method secures a stable labor force as compared with the former artificial method, but since it has the above-mentioned drawbacks, the former artificial method is still used. The current situation is that we must rely on various methods.

The present invention has been made in view of the above circumstances, and has a simple structure and a relatively low machine price for the packaging industry, which is expected to have an increasing demand in the future. It is an object of the present invention to provide a separating device for a box-making sheet for obtaining a low-cost product, and the object can be achieved by completing the invention described below.

[0008]

SUMMARY OF THE INVENTION The present invention is a cutting method for cutting a connecting portion of box-making paper to separate it into a main paper and a waste paper. Between the two rollers, which rotate in opposite directions to each other, are punched by a punching device with some joints left in place to form a required paper and a waste paper, which is a waste paper. By sequentially passing the two rollers in accordance with the rotation of the two rollers, the joint portion of the box-making paper is gradually cut by the meshing of the cut pieces, and the cutting process is continuously performed without being temporarily stopped. A plurality of box-making sheets are separated into main paper and scrap paper, and as a separating device, two rollers are provided so as to face each other and rotate in opposite directions in synchronization with each other, and Laura's circumference A plurality of cutting pieces are provided so that the rollers are sequentially meshed with each other as the rollers rotate, and the main paper and the unnecessary parts that are punched by a punching device leaving joints in places are used. The box-making paper on which the scrap paper is formed is sequentially passed between the two rotating rollers, thereby gradually cutting the joint portion of the box-making paper and temporarily operating the cut pieces. A plurality of box-making papers are continuously separated into main paper and scrap paper without stopping. On this occasion,
The cutting piece may be a protrusion having a wall surface that is substantially perpendicular to the peripheral surface of the roller, and the wall paper may face each other so that the connecting portion of the box-making paper is cut.

Further, the cut pieces provided on the rollers are previously formed on a thin plate, and the plates are wound around the peripheral surfaces of the two rollers, respectively, so that the peripheral surfaces of the two rollers are engaged with each other. It is also one in which a protruding cutting piece is provided, and a plate on which the cutting piece is formed is detachably attached to each roller as required.

[0010]

Operation: Two rollers that face each other and rotate in opposite directions to a box-making sheet formed by punching with a punching device leaving joints in places to form required paper and unnecessary paper. When the rollers are successively passed while being rotated, for example, a cutting piece provided on one roller is located from the surface to the main paper side of the joint portion of the box-making paper, and at the same time, a cutting piece provided on the other roller. The piece is also positioned from the back side to the scrap paper side of the joint portion of the box-making paper, the main paper is directed toward the back surface by the upper surface with which one cutting piece abuts, and the scrap paper is the surface with the upper surface with which the other cutting piece abuts. Are pressed in the respective directions, and the wall surfaces of both cutting pieces pass each other, so that the joint portions are displaced in opposite directions and cut.
Box-making paper will be separated into real paper and scrap paper. Moreover, since the cutting piece is provided around the roller,
Since the rollers are engaged with each other endlessly, the box-formed sheets that are sequentially fed are continuously separated into a main sheet and a scrap sheet.

Further, when the cut pieces are provided on a flat thin plate in advance, it is compared with the case where the cut pieces are provided on the peripheral surface of the curved roller so as to correspond to the position of the connecting portion of the box-making paper. As a result, the cutting piece can be provided reliably and easily without the risk of misalignment, and since the plate is thin, it can be easily wrapped around the roller body according to the curvature of the peripheral surface of the roller. Therefore, the cut pieces adapted to various designs of the box-making paper can be easily provided around the rollers.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. The boxing paper separating device (A) according to the present invention is
A punching device such as that shown in FIG. 7 is used to perform punching, leaving joints (25) in places, to form a main paper (8) that is a necessary part and a waste paper (9) that is an unnecessary part. The box paper (7) is placed behind a paper feeder (B) that carries a plurality of sheets and conveys the sheets one by one from the top (see FIGS. 4 and 5), and its configuration is as shown in FIG. 1 or FIG. As shown in FIG. 6, two rollers (1, 2) are provided so as to face each other so as to be synchronized and rotate in opposite directions.
A plurality of cutting pieces (3, 3, 4, 4) are provided on the peripheral surface of one roller (1, 2) so that they are sequentially engaged with each other by the rotation of the roller. , The box-making paper (7) is successively passed between the two rollers (1, 2) which are rotated thereby, and the connecting portions (25) of the box-making paper (7) are gradually opened by the cutting pieces (3, 4). Along with cutting, a plurality of box-making papers (7) and a waste paper (8) and scrap paper are continuously cut without temporarily stopping the operation of the cutting pieces (3, 4), that is, the rotation of the rollers (1, 2). (9) and (9) are separated.

The cut pieces (3, 4) are projections having wall surfaces projecting from the circumferential surfaces of the rollers (1, 2), and the wall surfaces face each other so that the cut pieces (3, 4) pass through each other and the connecting portion (25) of the box-making paper (7) is made. ) Is cut, and may be directly provided on the peripheral surface of each roller (1, 2), but it is appropriately provided so as to be provided at an accurate position according to the shape of each box. In order to make it easy to change the design and to save the storage space of the separating device having various redesigned cutting pieces, as shown in FIG. 3, thin plates (5, 6) are used in advance. ) Each cut piece (3,
4) is formed so that the rollers can be detachably attached to the peripheral surfaces of the two rollers.

A plate having a cutting piece (3) which is brought into contact with the main paper (8) side of the connecting portion (25) of the box-making paper (7) and cuts so as to push out the main paper (8) from the box-making paper (7). Is used as the main paper side plate (5), and abutted against the scrap paper (9) side of the connecting portion (25) of the box making paper (7), and cut so that the scrap paper (9) is left on the box making paper (7). The plate having the cut pieces (4) will be referred to as a scrap paper side plate (6), and a method of making each of the plates (5, 6) will be described. First, for example, a stainless plate or an aluminum plate having a thickness of about 0.1 mm is used. On the surface of the thin metal plate (5), paper leading edge alignment lines (43, 43) are provided in advance at the portion where the leading edge of the box-making paper (7) is located, and the plate (5) is moved to the roller (1). Positioning hole (45. 45) providing a plurality of further plate (as the center of Seihako sheet to the center position of the 5) (7) is located, the paper center alignment line (41, 41)
Are provided above and below the plate (5), respectively. Next, the box-making paper (7) is placed on the plate (5) with its leading end aligned with the paper leading-edge alignment lines (43, 43), and the center line (51) of the box-making paper (7) is placed at the paper center position. Set while aligning with the mating lines (41, 41) and secure with tape or the like. When the box-making paper (7) has been fixed to the main-paper-side plate (5), the main paper (8) is pulled out and its contour is accurately drawn on the surface of the plate (5) and corresponds to the joint (25). Mark the points and connect the joints (2
The hard paper cutting pieces (3 ... 3) having a thickness of about 2 to 3 mm are attached to the inner portions of the respective portions corresponding to 5) with an adhesive or the like to form the hard paper side plate (5).

In the same manner as described above, the box-making paper (7) is previously prepared.
Align the paper leading edge alignment line (4
4, 44) and a plurality of alignment holes (46, ..., 46) for performing alignment when the plate (6) is attached to the roller (2), and further, the center position of the plate (6) The paper center alignment lines (42, 42) are provided above and below the plate (6) so that the center of the box-making paper (7) is located on the main paper side plate (5).
The box-making paper (7) from which the main paper (8) part used in the preparation of the above is removed in the longitudinal direction of the plate (6) as compared with the case of the main-paper-side plate (5). While aligning the front end with the paper front end alignment line (44, 44) and aligning the center line (51) of the box-making paper (7) with the paper center alignment line (42, 42), set and fix with tape or the like. The contour is accurately drawn on the surface of the plate (6) and marks are made at the points corresponding to the joints (25), and the paper side plate (5) is placed on the outer side of each point corresponding to the joints (25). By disposing the scrap paper side cut pieces (4 ... 4) similar to those used for the above so as to be engaged with the paper cut side pieces (3. This is the scrap paper side plate (6).

The plates formed as described above are mounted so as to be wound around rollers, respectively. In this method, first, a plurality of plate mounting alignment marks (49 ... 49) are previously formed on the surface of the roller (1). It is provided, and then one plate mounting hole (47 ... 47) of the paper side plate (5) is attached to the plate tightening angle (1
After being attached to one end of 1), the main sheet side plate (5) is wound around the roller (1) while facing the outer side, and the other side plate mounting holes (47, ... 47) Roughly aligning the plate tightening angle (11) at the other end with the plate tightening angle (11), and then the plate tensioning bolt (12) of the plate tightening angle (11) and the plate tensioning nuts (13, 13 ') at both ends. By adjusting
For fine adjustment of the mounting position of the main paper side plate (5) to the roller (1), the mounting position alignment mark (49 ... 49) is passed through the positioning holes (45 ... 45) provided in the main paper side plate (5). ) Make sure by checking the position. Further, similarly, the scrap paper side plate (6) is attached to the roller (2).

The separating device (A) of the present invention thus constructed is used together with the paper feeding device (B) and the like to describe a device for carrying out a series of feeding and separating of the box-making paper (7). Then, the box-making paper (7 ... 7) punched by the punching device in advance leaving the connecting portions (25) in some places and placed a plurality of sheets are conveyed one by one from the top by the paper feeding device (B). Then, the front end is brought into contact with the front contact (31), and the side end is aligned with the rollers (1, 2) vertically and horizontally by the lateral register device (30) provided on the side. Be positioned at. At the same time when this positioning is completed, the front end of the box-making paper (7) is attached to the sprocket shaft (22) of the chain sprocket (21) by the cam (2).
By 3), it is gripped by the gripper claw (28) attached to the tip of the paper feed gripper (26) that reciprocates in an arc around the gripper shaft (27) and advances in an arc. The paper feed gripper (26) holding the box-making paper (7) gradually increases in speed, and when the speed becomes equal to the traveling speed of the chain (19) provided with the chain claw (10), the same speed is maintained. At the contact point between the chain claw (10) and the gripper claw (28), the box-making paper (7) is passed from the gripper claw (28) to the chain claw (10). The paper feed gripper (26) will return to the original position after repeating the transfer of the box-making paper (7) to the chain claw (10) and repeat this operation again. Chain claw (1
The box-making paper (7) passed to the (0) is two rollers (1,
Gears (17, 18) provided at the peripheral end of 2), respectively
It passes between the two rollers (1, 2) that rotate in synchronization due to the meshing of the two rollers (1, 2), and at this time, the main sheet side plate (5) wound around the peripheral surfaces of the two rollers (1, 2), respectively. By the meshing of the main paper side cut piece (3) of (1) and the waste paper side cut piece (4) of the waste paper side plate (6), the joint portion (25) that is slightly connected is cut and the main paper (8) and the waste paper are scraped. It will be separated into paper (9). The separated main paper (8) is fed forward along with the rotation on the roller (2) around which the scrap paper side plate (6) is wound, and further, two rotating paper discharges arranged in the front. The paper is sent through the rollers (32, 33) onto the paper ejection tray (37) so as to be stacked one after another. On the other hand, the waste paper (9) held by the chain claw (10) and traveling together with the chain (19) is released from the chain claw (10) on the waste paper box (40) to enter the waste paper box (40). It will fall.

The chain (19) includes a chain sprocket (21), a chain sprocket (20) provided at the end of the roller (1), and a chain sprocket (29) arranged in front of the roller (1). It is made to hang around via a chain tension vehicle (34), and chain claws (10 ... 10) are provided at several places.
A plurality of chain claws (10 ... 10)
9) The number of teeth of the chain sprocket (20) and the chain (19) provided at the end of the roller (1) so as to go around the roller (1) at a fixed position each time it makes one revolution.
It is designed to match the number of saws. In addition,
In the figure, (35) is a drive source for rotating the roller (1) in synchronization with the engagement of the gears (17, 18) via the roller (2). Further, in the figure, (39) is a suspension chain of the delivery tray (37), and (38) is its chain sprocket.

[0019]

As described above, according to the present invention, since the box-making paper is cut and separated at the contact points of the two cylindrical rollers that rotate in a circular motion, the conventional flat plate type machine by vertical movement. Like the conventional means, temporarily stop the operation of the large mold every time the box-making paper is fed, stop the feeding of the box-making sheet at the moment of cutting, and require a large amount of horsepower accordingly. In addition, since it is possible to carry out the cutting and separating work of the box-making paper continuously at a very high speed and quietly, it can be said that it is economically, temporally and environmentally excellent. In addition, since the entire device is extremely small, it occupies a small area, and even if the number of molds increases in response to changes in the design of the box, the molds are thin plate plates. Therefore, it is possible to use the space efficiently without worrying about the storage location. Moreover, the mold whose design has been changed can be easily made by itself without ordering to the outside, and the work of mounting the mold can be performed very easily. It can be said to be efficient.

[Brief description of drawings]

FIG. 1 is an overall schematic diagram illustrating the structure of a separation device according to the present invention.

FIG. 2 is an enlarged side view of essential parts for explaining a cut state of the separation device of the present invention.

3A and 3B are general views showing a main paper side plate and (B) a waste paper side plate, which are used as an embodiment of the separation device of the present invention.

FIG. 4 is a schematic side view illustrating the structure of a paper feeding / separating series device using the separating device of the present invention.

FIG. 5 is a schematic plan view illustrating a structure of a paper feeding / separating series device using the separating device of the present invention.

FIG. 6 is a schematic enlarged side view for explaining a main part of the structure of the paper feeding / separating series device using the separating device of the present invention.

FIG. 7 is an overall view showing a box-making sheet.

[Explanation of symbols]

 A ... Separation device B ... Paper feeding device 1, 2 ... Roller 3, 4 ... Cutting piece 5, 6 ... Plate 7 ... Box-making paper 8 ... Main paper 9 ...・ Scrap paper 10 ・ ・ ・ Chain 11,14 ・ ・ ・ Plate tightening angle 12,15 ・ ・ ・ Plate pulling bolt 13,16 ・ ・ ・ Plate pulling nut 17,18 ・ ・ ・ Gear 19 ・ ・ ・ Chain 20,21 , 29 ... Chain sprocket 25 ... Connection part 26 ... Paper feed gripper 28 ... Gripper claw 41, 42 ... Paper center alignment line 43, 44 ... Paper front edge alignment line 45, 46 ... Alignment hole 47, 48 ... Plate mounting hole

Claims (6)

[Claims] 1. A punching device is used to punch a plurality of cutting pieces projecting from a peripheral surface between two rollers facing each other and rotating in opposite directions, leaving a joint portion in some places. By sequentially passing a box-making sheet on which a certain main sheet and waste paper, which is an unnecessary part, are passed, the joint portion of the box-making sheet is gradually cut by the engagement of the cutting pieces, and the cutting is temporarily performed. A method for separating a box-making sheet, characterized in that a plurality of box-making sheets are continuously separated into a main sheet and scrap paper without being stopped. 2. The box-making paper according to claim 1, wherein the cutting by engaging the cut pieces of the roller with each other is performed by passing the wall surfaces of the cut pieces protruding from the peripheral surface of the roller. Separation method. 3. Two rollers, which are provided so as to face each other and rotate in opposite directions in synchronization with each other, and two rollers provided on the circumferential surfaces of the two rollers so as to be sequentially meshed with each other as the rollers rotate. A box-making paper formed of a plurality of cutting pieces that are respectively arranged so as to project, and a main sheet that is a necessary part and a waste paper that is an unnecessary part that are punched by a punching device leaving joints in places, By successively passing between the two rotating rollers, the cut pieces are positioned on the main paper side or the scrap paper side of the respective joints of the box-making paper and are meshed with each other, so that the joints of the box-making paper are connected. An apparatus for separating a box-making sheet, characterized by gradually cutting and continuously separating a plurality of box-making sheets into a main sheet and a scrap sheet without temporarily stopping the cutting. 4. The cutting piece is formed on a thin plate in advance, and by projecting the plate around the peripheral surfaces of the two rollers, the protruding cut pieces are meshed with each other on the peripheral surfaces of the two rollers. The box-forming paper separating device according to claim 3, wherein the box-forming paper separating device is formed by forming a piece. 5. The box-making paper separating device according to claim 4, wherein the plate on which the cut pieces are formed is detachably attached to each roller. 6. The meshing of the cut pieces is provided so that the joint portion of the box-making paper is cut when the wall surfaces of the cut pieces protruding from the peripheral surface of the roller face each other. 6. The box-making paper separating device according to claim 3.