JPH0829568B2 - Paper sheet folding device for bag making machine - Google Patents

Description

The present invention relates to a paper sheet folding device in a bag making machine. In particular, the present invention is suitable when manufacturing a carrying bag having a square bottom.

"Prior Art" Conventionally, when a handbag having a square bottom is manufactured using a paper sheet (sheet) having a predetermined size without a scoring line (folding line), the following paper is used in the manufacturing process. A sheet folding device was used.

That is, a pair of left and right frames, a plurality of guide rollers which are horizontally mounted on these frames at a required interval, and a plurality of guide shafts which are arranged above or below these guide rollers. A paper sheet folding device comprising a plurality of guide plates for folding a paper sheet, which are respectively provided on these guide shafts via a threaded body.

However, the above structure has the following drawbacks.

When determining the width of each guide plate, each guide shaft had to be manually rotated. Therefore, it takes time to adjust each guide plate, and it requires skill because each guide plate is adjusted based on experience.

The expert adjusts the rotation of each guide shaft each time each bag is manufactured, but the adjustment actions cannot be saved as data.

Since the fine adjustment of each guide plate is not easy and the adjustment takes a long time, the bag manufacturing efficiency cannot be improved.

“Object of the Invention” In view of the above-mentioned conventional drawbacks, the present invention can easily or automatically determine the width of a guide plate in a short time, and even a non-skilled person can determine the width of the guide plate. Can be easily adjusted, and the adjustment actions performed by the worker can be saved as data, as well as the paper sheet conditions such as paper quality, paper thickness, grain, and presence of surface processing on the computer. Can be folded and the paper sheet can be folded as desired. In addition, by providing an origin sensor, it is possible to protect the guide plate and prevent the error from accumulating, and improve the adjustment accuracy. . To obtain a paper sheet folding device for a bag making machine.

[Means for Achieving the Purpose] In order to achieve the above object, the paper sheet folding apparatus in the bag making machine of the present invention stores in advance the sizes of the square bags having various square bottoms to be manufactured. A first storage means,
In addition, the main computer that calculates the specified numerical value by arithmetically processing the input vertical and horizontal sizes of the manufacturing bag in the greatest common divisor, and conditions such as paper quality and paper thickness of the paper sheet that are connected to this main computer A correction value command computer having a second storage means for storing, a drive motor connected to the main computer via a control unit, a drive shaft of the drive motor, and a horizontal shaft mounted on the left and right frames. A guide shaft, a first guide plate for folding a paper sheet provided on the guide shaft via a screw body, and a screw shaft inside the frame so as to face the first guide plate. A second guide plate for folding the paper sheet, which is positionally adjustable, and a rotation amount of the guide shaft, which is attached to the drive motor and detects the rotation amount of the guide shaft, and outputs a detection signal to the controller. An encoder to send to the roll unit, interposed connected between the control unit driving motor, and, on the basis of both the signals of the control units and encoders, characterized in that it consists of a motor driver for driving the drive motor.

Further, the paper sheet folding apparatus in the bag making machine of the present invention is connected to the main computer having a first storage means for storing in advance the size of the square bag having various square bottoms to be manufactured. In addition, a correction value command computer having second storage means for storing conditions such as paper quality and paper thickness of the paper sheet, a plurality of control units connected to the main computer via a signal transfer device, and these controls A plurality of drive motors that are respectively connected to the unit via respective motor drivers, and a plurality of guide shafts that are respectively connected to the drive shafts of these drive motors and that are horizontally mounted on the left and right frames,
A first guide plate for folding a paper sheet, which is provided on each of these guide shafts via a screw body, and position adjustment is possible inside the frame via a screw shaft so as to face the first guide plate. A second guide plate for folding a paper sheet, and a plurality of drive motors attached to the plurality of drive motors and individually detecting the rotation amount of each of the guide shafts and sending a detection signal to each control unit. Each encoder and a plurality of motor drivers that are respectively connected between each control unit and each drive motor and that drive each drive motor based on the signals from both the control unit and the encoder. Is characterized by.

[Examples] Hereinafter, the present invention will be described in detail with reference to Examples shown in the drawings.

In the embodiment shown in FIGS. 1 to 3, reference numeral 1 is a left and right frame showing a part of the bag making machine. The frames 1 are arranged opposite to each other with a required space so that a paper sheet 2 for making a handbag having a square bottom can be flowed in one direction.

Reference numeral 3 denotes a plurality of guide rollers horizontally mounted on the left and right frames 1, and these guide rollers 3 are horizontally arranged at predetermined intervals. The paper sheet 2 is guided by these guide rollers 3 and a plurality of upper small guide rollers (not shown), and moves in the arrow direction.

Reference numeral 4 is a guide shaft having a male screw 5 at a portion near one end. The guide shaft 4 is horizontally mounted on the left and right frames 1 above the guide rollers 3. The guide shaft 4 may be provided below the guide roller 3.

Reference numeral 6 denotes a threaded body that is threadedly engaged with the guide shaft 4 and moves left and right.

Reference numeral 7 is a first guide plate for folding the paper sheet, which is provided in a horizontal state below the threaded body 6 via a support rod 8. The first guide plate 7 is formed in a long plate shape, and is provided orthogonal to the guide shaft 4. Further, the first guide plate 7 is fixedly hung and fixed to the screw body 6 with a certain gap provided between the first guide plate 7 and each guide roller 3.

Reference numeral 9 denotes a second guide plate for folding the paper sheet, which is provided inside the frame 1 so as to face the first guide plate 7. The second guide plate 9 is horizontally movable via a short screw shaft 10 attached to the frame 1. In addition,
The screw shaft 10 is manually rotated in this embodiment.

11 is a support rod 12, a mounting plate 13, and a mounting box on the outside of the frame 1.
14 is a drive motor provided via each of them. The drive shaft of the drive motor 11 is connected to one end of the guide shaft 4 via a joint 15.

Next, 16 is a main computer having a first storage means 17 for storing in advance the sizes of various bags to be manufactured.
The main computer 16 does not consider the various conditions of the paper sheet described later at all, and corresponds to the input size of the bag to be manufactured, based on a specific calculation formula, and calculates the guide axis 4 described above. Signal the control unit to rotate up to. In this embodiment, the main computer
The data entered in 16 is the vertical and horizontal size of the bag to be manufactured. The main computer 16 calculates the vertical and horizontal sizes of the bag in the greatest common divisor, respectively, to obtain a specific numerical value.

Therefore, when only the main computer 16 is used, the adjustment of the first guide plate 7 is rough.

Reference numeral 18 is a correction value command computer which is connected to the main computer 16 and has a second storage means 19 for storing a plurality of conditions of the paper sheet. Here, the plurality of conditions mean four input items such as paper quality of paper sheet, paper thickness, paper grain, and presence / absence of surface processing. The correction value command computer 18 determines a specific correction value from a combination of a plurality of conditions, and sends a correction signal of the correction value to the main computer 16.

Therefore, when the correction value command computer 18 is used, the adjustment of the first guide plate 7 is a fine adjustment.

Reference numeral 20 is a control unit that is connected between the main computer 16 and the drive motor 11 described above. The control unit 20 sends the signal sent from the main computer 16 to the drive motor 11 side via the motor driver 21. The control unit 20 is also connected to an encoder 22 attached to the drive motor 11, confirms the width determining dimension of the first guide plate 7 based on the signal detected by the encoder 22, and sends the signal to the main computer 16. The motor driver 21 is a control unit 20.
The information signal from the encoder is compared with the detection signal sent from the encoder 22, and the drive motor 11 is driven so that the width determined by the main computer 16 is obtained. The encoder 22 detects the amount of movement of the first guide plate 7 and sends the detection signals to the motor driver 21 and the control unit 20, respectively.

Reference numeral 23 is a manual operation switch provided directly on the motor driver 21. The manual operation switch 23 does not have sufficient data concerning various paper sheets 2 stored in the correction value command computer 18, and therefore the correction value indexed by the correction value command computer 18 is set at the time of manufacturing the bag. It is used when a normal bag is not formed even when used.

[Operation] In the above configuration, when manufacturing a handbag having a square bottom, the vertical and horizontal sizes of the handbag are input to the main computer 16.

Then, the main computer 16 uses the first storage means.
A specific value is picked up from 17 and a signal is sent to the motor driver 21 via the control unit 20. The motor driver 21 drives the drive motor 11 based on this signal. When the drive motor 11 drives, the guide shaft 4 rotates, and as a result, the first guide plate 7 becomes the main computer.
Move it so that it will be the width-determined dimension sent from 16.
In this case, it is necessary for the worker to confirm the amount of movement and manually rotate the screw shaft 10 to adjust the second guide plate 9 to an appropriate position.

After that, the worker pours the paper sheet 2 through the bag-making machine once and looks at it. If the desired bag is made there, then "OK"
Is.

However, it is often the case that a normal handbag is not completed simply by inputting the bag size to the main computer 16. Therefore, when a normal bag cannot be formed, a plurality of conditions for the paper sheet 2 are input to the correction value command computer 18. Then, the correction value command computer 18 displays the second value.
A specific correction value is picked up from the storage means 19 and a correction command signal is sent to the main computer 16. When the main computer 16 receives this correction instruction, it sends a correction value signal to the control unit 20 again. As a result, the first guide plate 7 is finely adjusted. Therefore, the worker again pours the paper sheet into the bag-making machine and looks at it. If the desired bag is made, it is OK.

However, if the desired bag is still not formed, the manual operation switch 23 is operated.

Then, when the manual operation switch 23 is operated, a signal is sent from the control unit 20 to the motor driver 21, and the drive motor 11 is driven. As a result, the first guide plate 7 moves slightly to the left or right. At this time encoder 22
Detects the amount of rotation of the guide shaft 4, and this detection signal is sent to the main computer 16 side via the control unit 20. When the manual operation switch 23 is used for the paper sheet, the operation is stored in the correction value command computer 18 as new data.

As described above, the paper sheet is folded as desired, and a normal carrying bag is completed.

"Different Embodiments" Next, different embodiments of the present invention will be described.

In the description of different embodiments, the same parts as those of the present invention will be denoted by the same or similar reference numerals, and redundant description will be omitted.

4 to 6 is different from the above embodiment of the present invention mainly in that a plurality of guide shafts 4a, 4b, ... 4n and guide plates 7a, 7b ... 7n are provided. . Therefore, in order to individually move each of the guide plates 7a, 7b ... 7n, the drive motors 11a, 11b ... 11n, the encoders 22a, 22b ... 2
2n, motor drivers 21a, 21b ... 21n, manual operation switches 23a, 23b ... 23n, control units 20a, 20b ... 20n
Are provided in plurality. The main computer 16A and a plurality of control units 20a, 20b ... 20n
The difference is that one signal transfer device 25 is provided between and.

In the above configuration, the guide shaft 4a rotates and the guide plate
After the width of 7a is determined, a signal is sent from the signal transfer device 25 to the next control unit 20b, and the guide shaft 4b rotates. When the width determination of the guide plate 7b is completed, signals are sequentially sent from the signal transfer device 25 to the control unit 20n, and the width determination of each guide plate 7a, 7b ... 7n is adjusted. The other operation mode is the same as that of the embodiment of the present invention.

Next, the embodiment shown in FIG. 7 and FIG. 8 adds new constituents to the different embodiment of the present invention.

That is, a plurality of origin sensors 26a, 26b ... 26n for detecting the origin of each guide plate 7a, 7b ... 7n are connected to each control unit 20a, 20b ... 20n, and each origin sensor is shown in FIG. Thus, it is fixedly provided on the frame 1 via the support plate 27.

In the above structure, when adjusting the width of each of the guide plates 7a, 7b ... 7n, the guide plates are moved outward and once returned to the origin (0).

"Effects of the Present Invention" As is apparent from the above description, the present invention has the effects listed below.

(1) Since the guide plate for folding the paper sheet can be automatically adjusted, the efficiency of the adjustment work can be improved even when manufacturing other handbags having different corner bottoms.

(2) Since the correction value command computer is connected to the main computer, fine adjustment of the guide plate can be easily performed.

(3) Even if not an expert, it is possible to easily adjust the width of the guide plate in a short time.

(4) In the case of the embodiment in which the control unit is provided with the manual operation switch, the desired bag is manufactured even when various conditions regarding the paper sheet of the bag to be manufactured are not input to the correction value command computer. can do.

(5) Each time the manual operation switch is used, new data can be sequentially accumulated in the correction value command computer via the encoder, the control unit and the like.

Therefore, the accuracy of the data of the correction value command computer increases as the number of fine adjustments of the guide plate increases.

(6) In the case of the embodiment in which the origin sensor is connected to the control unit, the adjustment error of the guide plate moving via the screw body is not accumulated in the correction value command computer.
Therefore, highly accurate adjustment can always be performed.

(7) In the case of the embodiment in which a plurality of guide plates can be automatically adjusted, the adjustment time can be remarkably shortened, and as a result, the production efficiency of the bag can be improved.

[Brief description of drawings]

1 to 3 are explanatory views showing an embodiment of the present invention, FIGS. 4 to 6 are explanatory views showing a different embodiment of the present invention, and FIGS. 7 and 8 are main drawings. It is each explanatory drawing which shows another another Example of invention. 2 ... Paper sheet, 3 ... Guide roller, 4, 4a, 4b, 4n ... Guide shaft, 6 ... Threaded body, 7, 7a, 7b, 7n ... Guide plate, 11, 11a, 11b, 11n ... ... drive motor, 16, 16A ... main computer, 17 ... first storage means, 18 ... correction value command computer, 19 ... second storage means, 20, 20a, 20b, 20n ... control unit, 21, 21a, 21b, 21n …… Motor driver, 22, 22a, 22b, 22n …… Encoder, 23, 23a, 23b, 23n …… Manual operation switch, 25 …… Signal transfer device, 26a, 26b, 26n …… Origin sensor.

Claims (5)

[Claims] 1. A first storage means for storing in advance the size of a square bag having various types of square bases to be manufactured, and the entered common length and width sizes of the manufacturing bag are the greatest common divisors. And a main computer that calculates the specific numerical value
Paper quality of paper sheet, which is connected with this main computer
A correction value command computer having a second storage means for storing conditions such as paper thickness, a drive motor connected to the main computer via a control unit, and a drive shaft of the drive motor and connected to left and right frames. A guide shaft horizontally mounted, a first guide plate for folding a paper sheet provided on the guide shaft via a screw body, and an inner side of the frame so as to face the first guide plate. A second guide plate for folding a paper sheet, the position of which is adjustable via a screw shaft, and an encoder which is attached to the drive motor and detects a rotation amount of the guide shaft to send a detection signal to the control unit. Is connected between the control unit and the drive motor, and the drive motor is controlled based on the signals from both the control unit and the encoder. In paper sheet folding device in the bag making machine comprising a motor driver for moving. 2. The paper sheet folding apparatus for a bag making machine according to claim 1, wherein the control unit is provided with a manual operation switch. 3. A main computer having a first storage means for storing in advance the size of a square bag having various types of square bottoms to be manufactured, and a main computer connected to the main computer and the quality of paper sheets, paper thickness, etc. A correction value command computer having a second storage means for storing conditions, a plurality of control units connected to the main computer via a signal transfer device, and these control units are respectively connected via respective motor drivers. A plurality of drive motors, a plurality of guide shafts that are respectively connected to the drive shafts of these drive motors, and are horizontally mounted on the left and right frames, and these guide shafts are respectively provided via screwed bodies. A first guide plate for folding the paper sheet and a position adjustment via a screw shaft inside the frame so as to face the first guide plate. A second guide plate for folding a paper sheet, which is provided so that it can be mounted on each of the plurality of drive motors, and individually detects the rotation amount of each of the guide shafts and sends a detection signal to each control unit. Based on the signals of both the control unit and the encoder, which are respectively connected and connected between the plurality of encoders, each control unit and each drive motor,
A paper sheet folding device for a bag-making machine, which comprises a plurality of motor drivers for driving respective drive motors. 4. A paper sheet folding apparatus for a bag making machine according to claim 3, wherein each control unit is provided with a manual operation switch. 5. An origin sensor for detecting an origin of each guide plate is connected to each control unit, and each origin sensor is fixedly provided on the frame via a support plate. A paper sheet folding device for a bag making machine, which is characterized in that