JPH0516999B2 - - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a group of sheet-like products stacked in a predetermined number, particularly a sealed bag having a length of two bags made and sent out from a bag-making machine and stacked. This invention relates to a punching device that divides a bag into two symmetrical bags with strings.

<Prior art> Prior to this application, this type of punching device was used as a pre-process for supplying from the bag making machine to the punching device.
A main cradle for stacking and supporting a predetermined number of sheets is installed on the output side of the bag making machine, separate from the punching device, and when a predetermined number of sheets are stacked on the main cradle, this bag is A predetermined group of sheet materials stacked on the main pedestal is placed in a gripper of a conveying device that conveys a bundle of sheet materials from the pedestal through the punching device position to the bagging or alignment station. The free end on the output side is gripped and transferred onto the cradle of the punching device, and then the group of sheet-like materials is pressed out at once by the punching device to form a product with a predetermined number of stacked sheets, such as a carrier bag, and then transported from the punching device. , carrying out appropriate bagging work. An example of such conventional technology is Utility Model Application Publication No. 56-76400 (bag-making machine with push-cut device developed by the same applicant) No. 1.
Disclosed in fig.

<Problems to be Solved by the Invention> In the prior art, the gripper of the conveyance device grips the output side end of a bundle of sheet-like materials,
In order to convey a predetermined group of sheet-like objects from the main receiving stand toward the punching device, one end of the predetermined sheet-like object group is slightly lifted, and the sheet-like object group is conveyed by dragging the carry-in end. As a result, misalignment occurs in the sheet-like material that overlaps the top and bottom, resulting in differences in the shape of the sheet-like material that is punched out at once by the punching device and becomes a product, making it impossible to manufacture many uniform products at once. , which is the first problem of the prior art, and the second problem is that the width of the stacked sheet-like material is wide, and the punching process is performed in the center, and the stacked sheet-like material is divided into left and right sides, and the processing is performed on the left and right sides. When the gripper of the above-mentioned known device grips the separated left and right stacked sheet-like materials, the portions having the unevenness on the left and right will sag during conveyance, causing downstream This results in the stacking being twisted to the side, and the stacking posture is severely distorted and collapsed, making subsequent processing difficult. Furthermore, the device itself becomes larger.

The main object of the present invention is to improve the above-mentioned problems of the prior art, to feed a stacked sheet group to a punching means in a horizontal position, and to perform accurate batch punching. Even when performing a punching process that bends the group left and right and divides it into left and right parts, or when the planar area of the processing means is larger than the planar area of the sheet group, it is necessary to stabilize the sheet group. It is used to process the bag accurately and to allow it to be carried out from the position of the processing means, and is mainly used to process the bag so that no scraps are left in the sealed bag, which is long in the width direction, and to process it into two bags at once. It is.

<Means for Solving the Problems> The first and second inventions of the present invention were invented to solve the above-mentioned problems, and the first invention relates to a group of stacked sheet-like objects. A conveying device has a receiving part for receiving the sheets horizontally on the carry-in side, and a support part for orderly aligning and supporting the group of stacked sheets that have been punched on the carry-out side. A stacked sheet group punching device comprising a punching means, wherein the conveyance device comprises three mutually parallel endless conveyors, of which the upper surfaces of the belts of the two left and right endless conveyors are horizontal over the entire length, and the remaining The endless conveyor in the center of the belt is
At the position of the punching means, a detour is made to the lower side of the punching means, and except for this position, it is a series of endless belt conveyors that are flush with the upper surfaces of the belts of the endless conveyors on both the left and right sides, and the recess formed by this detour is a series of endless belt conveyors. A second invention is a stacked sheet group punching device characterized in that a holder for a punching means is disposed in a space of A stacked sheet-like material comprising: a conveying device having a supporting part on the unloading side for orderly aligning and supporting a group of stacked sheet-like objects that have been punched; and a punching means disposed between the loading side and the unloading side of the conveying device. In the object group punching device, the conveying device is composed of three mutually parallel endless conveyors, of which the upper surfaces of the belts of the two left and right endless conveyors are horizontal over the entire length, and the remaining central endless conveyor is The upper surface is detoured to the lower side at the punching means position, and is flush with the upper surface of the belt of the endless conveyor on both the left and right sides other than this position,
The left and right 2 located on both sides of the punching means position
Above at least the inner edge positions of the two endless conveyors, at least one endless conveyor is provided for each of the stacked sheet-shaped object group double-end pressers that is in contact with the upper surface of the belt of the corresponding endless conveyor. This apparatus is characterized in that a pedestal of the punching means is arranged in a concave space formed at a detour position.

<Embodiment> In conjunction with the first invention, a typical embodiment of the second invention will be described based on FIGS. 1 and 2.

In FIGS. 1 and 2, 10 is a symbol indicating the entire punching device, and this punching device 10 is
It is composed of a conveying device 20 and a punching means 50.

This conveying device 20 is a stacked sheet group B.
A wide receiving part 21 for horizontally receiving and instructing the sheets is provided near the carry-in side, and a wide support part 22 for supporting the punched stacked sheet-like objects B in orderly alignment is provided near the carry-out side.

The punching means 50 is arranged between the receiving section 21 and the supporting section 22 of the conveying device 20, that is, between the carry-in side and the carry-out side.

The conveying device 20 consists of three mutually parallel endless conveyors 23, 24, 25, and a punching means 5.
0 two left and right endless conveyors 23 located on both sides,
25, an input roller 26 and an output roller 27 are arranged on the machine frame with their axes horizontal and perpendicular to the sheet conveyance direction, and two endless conveyor belts 28 are installed between these rollers 26 and 27. ，
29 are engaged with each other at intervals, and the conveying upper surfaces 28a, 29a of each endless conveyor belt 28, 29 are horizontal over the entire length from the carry-in side to the carry-out side. In this way, the two left and right endless conveyors 23 and 25 are constructed, and their conveying upper surfaces are always horizontal, so that both ends of the stacked sheet group B are always supported and conveyed horizontally.

In the central endless conveyor 24, the conveying upper surface 30a of the conveyor belt 30 is detoured to the lower side of the punching means 50 at the punching means 50 position, and except for this detour area 32,
This conveyance upper surface 30a is the conveyance upper surface 2 of the belts 28, 29 of the left and right endless conveyors 23, 25.
8a and 28a, forming a series of endless conveyors.

In the concave space 33 of the upper opening formed by the lower detour of the belt 30 of the central endless conveyor 24, a cradle 52 having a turntable-type horizontal receiving surface 51 for the punching means 50 is arranged on the machine frame. ing. Above this pedestal 52, this pedestal 52
Each time a predetermined number of sheet-like materials B are stacked on top and fed by the conveying device 20, they are lowered and placed on the receiving table 52.
A punching blade body 54 with a vertically movable punching and cutting full-form blade 53 that is moved upwardly and retracted after contacting and punching and cutting is provided on the machine frame.

As an example of the planar shape of the full-form blade 53, as shown in FIG.
at the center of each bag in a U-shape or V-shape in the length direction of the bag.
It is cut into a curved part that is curved in the shape of a letter, and has a planar V-shape to U-shape that allows two symmetrical string-equipped carrier bags B ₃ and B ₄ groups to be manufactured by one punching and cutting.

A pressing member 55 that presses the upper surface of a predetermined stacked sheet group B located on the receiving section 21 of the conveying device 20 on the carry-in side of the punching blade 54 from the forming blade 53 is attached to the machine frame vertically. The pressing member 55 is movably equipped, and the pressing member 55 is equipped so as to be movable and adjustable in the sheet group conveyance direction with respect to the forming blade 53 so that its pressing position can be changed.

Note that this pressing member 55 and the punching blade body 54
The above-mentioned pressing member 55 is operated synchronously once per cycle by a vertical driving means separate from the pressing member 55. Even if the punching blade body 54 and the punching blade body 54 are connected to a common vertical drive means and integrated, the present invention is the same.

Slightly on the unloading side of the pressing member 55, the receiving section 21 contacts the sheet-like materials b that are made into bags and sent out from a bag-making machine (not shown) until each sheet-like material b reaches a predetermined number. A stopper 56 is mounted on the machine frame so as to be movable up and down.The stopper 56 accumulates the sheet-like materials B on top of the receiving section 21, and each time a predetermined number of sheets are accumulated, the stopper 56 is retracted above the receiving section 21 and then lowered again.

The pedestal 52 of the punching means 50 supports the pressing member 5
The vertical axis of the pedestal 52 is connected to a pedestal rotation device that rotates the vertical axis of the pedestal 52 by a slight angle around its axis in response to a detection signal from a microswitch that detects this every time the stacked sheet group B is pressed by the pedestal 52. ing.

Note that a description of the control device that controls the timing of each component will be explained in conjunction with the operation of the invention that follows.

Furthermore, in the second invention, in addition to the above, at least above the inner edge position of the two left and right endless conveyors 23, 25 located on both sides of the punching means 50 position, the corresponding conveyor 23,
Conveyance upper surfaces 28a, 29 of belts 28, 29 of 25
At least one endless conveyor 34 is provided for each of the narrow stacked sheet-like objects holding both ends of the group a.

The carry-in end 35 of each presser endless conveyor 34 is
Extending further upstream from the position of the punching means 50, the holding surface 36 of the belt 34a at the carry-in end 35 is connected to the conveying upper surface 28 of the belts 28, 29 of the two corresponding lower left and right endless conveyors 23, 25.
a, 29a, respectively, the stoppers 56
A receiving opening at both ends of the stacked sheet group is formed by the belts 28 and 29 of the two left and right endless conveyors 23 and 25 and the presser surface 36 at the carry-in end 35 of the presser endless conveyor 34.

<Operation> The operation of the first invention of the present invention having the above structure will be explained below together with the operation of the second invention.

The stopper 56 is moved to the receiving section 2 of the conveying device 20.
1, and the full-form blade 53 of the punching blade body 54 of the punching means 50 is retracted above the pedestal 52.

In this state, the sheet-like materials b made into bags and sent out from the bag-making machine are brought into contact with the stopper 56, stacked one after another on the receiving section 21, and the number of sheets is counted.

When this count reaches a predetermined value, that is, a predetermined number of sheets b are stacked on the receiving section 21,
After the pressing member 55 is lowered and the upper surface of a predetermined number of stacked sheet-like objects B is pressed and pressed, residual air between each sheet-like object is pushed out to the outside, and the bulk of the stacked sheet-like object group B is reduced, The pressing member 55 and the stopper 56 are raised and retracted.

Next, a detector such as a micro switch detects the downward and upward movement of the press member 55 due to the pressing action of the press member 55, and the drive motor M of the pedestal rotating device is activated each time based on the detection signal. drive,
The pedestal 52 is rotated slightly around the vertical axis to sequentially shift the contact position between the full-form blade 53 and the receiving surface 51 of the pedestal 52 from the previous position.

After receiving the rotation completion signal of the pedestal 52, the control device issues an activation signal to the conveyance device 20,
The three endless conveyors 23, 24, and 25 are driven to transport a predetermined stacked sheet group B on the receiving section 21 to the receiving surface 51 position of the receiving stand 52 of the punching means 50, and also to carry out the previous punching. A predetermined number of stacked sheets B ₀ that have been processed by the cutting operation are moved from this receiving surface 51, conveyed to the support section 22, and then stopped.

At this time, while being supplied from the receiving section 21 to the pedestal 52, both ends B ₁ and B ₂ of the stacked sheet group B are
The presser endless conveyor 34 is horizontally supported by the conveying upper surfaces 28a, 29a of the belts 28, 29 of the horizontal endless conveyors 23, 25 at both left and right ends, and furthermore, in the second invention, the presser endless conveyor 34 is intermittently driven at the same time as the conveying device 20. The left and right endless conveyors 23 and 25 feed the ends B ₁ and B ₂ onto the pedestal 52 while being held therebetween, and stop them on the pedestal 52 while being held therebetween.

Next, the punching blade 54 of the punching means 50 is lowered toward the pedestal 52, and the full-form blade 5 is inserted into the center of the stacked sheet group B located on the pedestal 52.
3 is penetrated and its cutting edge is bitten into the receiving surface 51 of the receiving stand 52, and the center portion of the stacked sheet group B is punched out into a desired shape.

In the illustrated embodiment, the sheet-like material B
is a sealed bag having a length of two bags, and the center portion of the sealed bag group B stacked with a predetermined number of sheets is cut into a curved part curved in a U-shape or V-shape in the longitudinal direction of the bag by the overall shape blade 53. , two symmetrical carrier bag groups B ₃ and B ₄ with strings are manufactured by one punching and cutting,
Both ends B 1 , _{B 2 of} each group of carrier bags B ₃ , B ₄ , which become packaged article storage parts B ₅ , B ₆ , are moved close to the punching means 50 by the endless conveyors 23 , 25 on both left and right sides and the endless presser conveyor 34 . This suppresses the tendency of this stacked sheet group B to move during punching and cutting operations by the forming blade 53 of the punching means 50.

While punching out the stacked sheet group B in this manner, the stopper 56 descends and returns to its original position, and the sheet B sent out from the bag making machine hits this stopper 56. , are sequentially placed on the receiving section 21 as described above.

Punching means 50 that has completed this punching and cutting process
The punching blade body 54 returns upward away from the pedestal 52 and prepares for the next punching and cutting process.

Next, the sheet-like material b is newly transferred to the predetermined sheet receiving section 2.
1, the above-mentioned action is repeated, and the previously punched and cut stacked sheet group _B0 is transferred from the pedestal 52 to the support section of the conveying device 20 by the driving of the conveying device 20 and the endless presser conveyor 34. 22, aligned and supported, and rotated at a predetermined angle onto the receiving surface 51 of the empty pedestal 52.
Next new predetermined stacked sheet-like object group B
is supplied and stopped, and the same punching and cutting process as described above is performed.

By repeating the above action, the supporting part 2 of the conveying device 20
2, several groups of stacked sheet-like objects B ₀ that have been punched and cut are arranged and supported in an orderly manner in the conveyance direction at predetermined intervals, and the stacked sheet-like object group B ₀ that is closest to the conveyance is manually or mechanically Accordingly, the stacked carrier bag groups B ₃ and B ₄ are each packed into an outer bag.

<Effects> The effects of the present invention configured and operated as described above will be explained below.

First, in the first invention, both ends B ₁ and B ₂ of the group B of stacked sheets are located on the left and right sides of the conveying device 20 in the entire transfer section from the receiving section 21 to the supporting section 22 via the punching means 50. Since it is always supported horizontally by the two endless conveyors 23 and 25 and is transported intermittently, there is almost no risk of slipping between the sheet-like materials b during transport and causing the cargo to collapse, and the punching and cutting by the punching means 50 During processing, the stacked sheets B can be maintained almost horizontally, and the stacked sheets B can be punched and cut into the same shape at the same position, allowing many products with the same shape to be cut at the same time. In addition, the predetermined stacked sheet group _B0 that has been punched out can be transported and aligned in an orderly manner from the punching means 50 to the support section 22 without changing the stacking posture, and the stacked sheets can be When packing a group of sheet-like objects B ₀ into an outer bag, it can be packed quickly without rearranging, and even when a punching process is performed in which stacked sheet-like objects are bent left and right to divide them, the sheet-like objects can be packed into outer bags. It enables stable and accurate processing of objects, and is ideal for batch processing and manufacturing of two bags without producing punching waste compared to sealed bags that are long in the width direction.

The conveying device 20 has a support section 2 on its unloading side.
2, and a receiving part 21 is formed on the carry-in side, and among the three endless conveyors 23, 24, 25, the central endless conveyor 24 detours to the lower side at the punching means 50 position, Since the pedestal 52 of the punching means 50 is arranged in the concave space formed by this detour, the conveying device 20 has the function of receiving the stacked sheet group B and the punched material carried out from the pedestal 52. It is possible to provide a support function for the stacked sheet group _B0 , and the three belt conveyors 23, 24, and 25 can be operated in complete synchronization and at the same speed, and the sheet group B can be kept in a constant posture before and after punching. keep it.

In the second invention, in addition to being able to exhibit the effects of the first invention, the presser endless conveyor 3
4 to the left and right 2 located on both sides of the punching means 50 position
At least above the inner edge position of the two endless conveyors 23, 25, the corresponding endless conveyor 23, 25
Since the presser endless conveyor 34 and the left and right endless conveyors 23, 25 are arranged so as to be in contact with the upper surfaces 28a, 29a of the belts 28, 29, both ends B ₁ , B of the stacked sheet group B ₂ to the left and right endless conveyor 2 at both sides of the punching means 50.
It is possible to feed and convey the sheet group B from the receiving section 21 onto the pedestal 52 by forcefully and reliably stacking the sheets while holding them near the inner edges of the sheets 3 and 25. , the both ends B ₁ and B ₂ are moved by the presser endless conveyor 34,
Since the punching means 50 is pressed and clamped on the upper surfaces of the two left and right endless conveyors 23 and 25, the punching means 50 has a planar area that is, for example, one-third or more of the planar area of the sheet-like material b.
It is also possible to prevent the stacked sheet group B from moving in the direction perpendicular to the conveyance direction even if the stacked sheet group B is used, and after the punching process, while forcibly holding both ends B ₁ and B ₂ , The punched stacked sheet group _B0 can be carried out from above 52 to the support section 22.

<Effects of the Embodiment> Each time the pressing member 55 is pressed and pressed, the pedestal 5
2, the contact position of the full-form blade 53 of the punching means 50 to the pedestal 52 can be made different for each punching process, and the receiving surface 51 of the pedestal 52 can be rotated by a certain angle. It can be used for various purposes and its service life can be extended.

[Brief explanation of drawings]

The figures relate to this invention, and FIG. 1 is a partially omitted plan view of one embodiment of the present invention, and FIG.
The figure is a front view thereof. Reference numerals in the figure: 20... conveying device, 50... punching means.

Claims (1)

[Scope of Claims] 1. A conveyance device having a receiving section for horizontally receiving a group of stacked sheet-like objects on the carry-in side and a support section for supporting the punched stacked sheet-like objects in an orderly alignment on the carry-out side, and this conveyor. In a stacked sheet group punching device comprising a punching means disposed between an input side and an output side of the device, the conveyance device is composed of three mutually parallel endless conveyors, of which two endless conveyors are arranged on the left and right sides. The upper surface of the belt is horizontal over the entire length, and the upper surface of the belt of the remaining central endless conveyor is detoured to the lower side at the punching means position. A device for punching out stacked sheet-like objects, characterized in that it is a series of endless belt conveyors flush with the upper surface of the belt of the conveyor, and a pedestal for a punching means is arranged in a concave space formed by the detour. . 2. The punching means includes a turntable-type horizontal pedestal arranged in a concave space formed by the lower detour of the belt of the central endless conveyor, and a turntable-type horizontal pedestal that can move up and down to approach and move away from this pedestal. 2. A punching device for stacked sheet-like materials according to claim 1, characterized in that the punching blade body has a punching cutter having a general shape blade. 3. A claim characterized by comprising a pressing member that moves up and down in synchronization with the punching blade that presses a predetermined group of stacked sheets on the receiving section on the carry-in side of the conveying device against the upper surface of the receiving section. The stacked sheet group punching device according to item 2. 4. A patent characterized in that the pedestal is provided with a pedestal rotation device that rotates the pedestal slightly around its vertical axis each time the pressing member acts to make contact with the full-form blade different. A stacked sheet group punching device according to claim 2 or 3. 5. A conveyance device having a receiving part for horizontally receiving a group of stacked sheet-like objects on the carry-in side and a support part for supporting the punched stacked sheet-like objects in an orderly alignment on the carry-out side; In the stacked sheet group punching device, the conveying device is composed of three mutually parallel endless conveyors, and of these, the upper surfaces of the belts of the two left and right endless conveyors extend over the entire length. The upper surface of the belt of the remaining central endless conveyor is detoured to the lower side at the position of the punching means, and other than this position, the upper surface of the belt of the endless conveyor on both the left and right sides is As one,
The left and right 2 located on both sides of the punching means position
Above at least the inner edge positions of the two endless conveyors, at least one endless conveyor is provided each for holding down both ends of the stacked sheet-like object group and in contact with the upper surface of the belt of the corresponding endless conveyor. A stacked sheet group punching device characterized in that a pedestal of the punching means is arranged in a concave space formed at a position. 6. The carrying-in end of the presser endless conveyor extends upstream from the position of the punching means, and the holding surfaces of the belt at this carrying-in end are separated from the upper surfaces of the belts of the lower left and right endless conveyors. An apparatus for punching out groups of stacked sheet-like materials according to claim 5.