JPH0699938A - Automatic bagging device - Google Patents

Abstract

PURPOSE:To prevent an excessive load stress from being exerted on holding claws and a clamp support mechanism by providing a means to correct a position, where approach of a clamp is stopped by a clamp support mechanism, according to the detected output of a closure detecting means. CONSTITUTION:In an automatic bagging device, when a clamp 49 caused to approach by means of a clamp support mechanism 59 approaches, a stopper 53 is dislocated in a given position, holding claws 50 are closed through the resilient repulsion force of a spring 52, and immediately after the stop of the holding claws, approach of the clamp 49 is stopped and transfer to separation is effected. Inversion of the moving direction of the clamp 49 is effected, in a manner described above, through detection and management of the number of revolutions of the drive motor 57 of the clamp support mechanism 59 by means of an encoder being a closure detecting means. Closing of the holding claws 50 of the clamp 49 is detected by the closure detecting means, such as the encoder, from the change of the rotation speed of the drive motor 57 owing to the fluctuation of a load. A position where approach of the clamp 49 is stopped by the clamp support mechanism 59 is corrected by a position correcting means according to the detected output.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bagging device used for checkout counters and the like.

[0002]

2. Description of the Related Art Here, an automatic bagging device disclosed in Japanese Patent Application No. 4-191905 by the present applicant will be described as a prior art of an automatic bagging device with reference to FIGS. First, the automatic bagging device 1 illustrated here is a checkout counter 2
Is formed as part of. In the checkout counter 2, as illustrated in FIG. 6, one store clerk is in charge of two units arranged so as to face each other, and the cart scale 3 and the bar code are arranged according to the moving direction of the customer. The scanner 4 and the automatic bagging device 1 are arranged in parallel, and the soccer table 5 and the electronic cash register 6 are sequentially arranged behind the automatic bagging device 1.

Here, as shown in FIG. 7, the automatic bagging device 1 has a product loading port 8 and a bag loading port 9 formed at the tip and the end of the upper surface of the main body housing 7, respectively. In addition, a pair of flaps 10 are openably and closably mounted and an optical sensor 11 is provided in the product insertion port 8 adjacent to the barcode scanner 4. Further, as shown in FIG. 8, the automatic bagging device 1 includes a pair of clamps 12 and a plurality of conveyor belts 1 below the product inlet 8.
3 _{1 to} 13 ₃ etc. are provided, and this conveyor belt 13
_A bag holding mechanism 14 is formed by _{1 to} 13 ₃ and the clamp 12.

In this automatic bagging apparatus 1, the clamp 12 has a structure in which a pair of holding claws 15 facing each other are supported by a clamp body 16 so as to be openable and closable. A clamp support mechanism (not shown) that supports the above is formed by a slide rail or the like.

In this automatic bagging device 1, a near-end detecting device 19 is provided as a part of a sheet feeding mechanism 18 that holds a bag sheet 17 which is a long sheet so as to be freely fed.
Is formed, and the bag sheet 17 in the sheet supply mechanism 18 is fed to the bag outlet 9 by the conveyor belts 13 _{1 to} 13 ₃ via a guide roller 20. Here, in the near-end detection device 19 of the automatic bagging device 1, a support rail 21 that is a support member having a shape inclined in a direction in which the rear descends projects on the inner surface of a pair of main body frames 22 that face each other. Has been set up,
A support roller 23, which is a support member, is rotatably supported near the lower end of the rear portion of the body frame 22. Further, in this near-end detection device 19, a detection switch 24 is built in near the lower end portion of the support rail 21, and a swingable detection terminal 25 of the detection switch 24 has a rotary roller 26 mounted at its tip end portion. And projects above the support rail 21.

A sheet roll 27 that is stored in the automatic bagging device 1 so as to be freely fed is formed by winding the bag sheet 17 around the center of a winding core 28. It has a structure in which a large number of simple bags 29 are arranged in series. More specifically, as illustrated in FIG. 9, the simple bag 29 has a shape in which a grip 31 is provided on both sides of an upper edge portion of a substantially rectangular main body 30. A perforation 32 is continuously formed at a connection position between the lower edge portion of the main body 30 and.

Therefore, in the automatic bagging apparatus 1, as shown in FIG. 8, the sheet roll in which the winding core 28 is placed on the supporting rail 21 and the outer peripheral surface of the supporting roller 23 contacts the supporting roller 23. 27 is rotatably held, and when the winding diameter of the sheet roll 27 is reduced by using the bag sheet 17, the winding core 28 slides on the support rail 21 by its own weight and descends. It has become.

In this automatic bagging apparatus 1, a belt conveyor 33 is provided from the position of the bag holding mechanism 14 to the bag outlet 9, and as shown in FIG. A drive switch 34 for forcibly starting the operation of the bag holding mechanism 33, the bag holding mechanism 14, the flap 10, and the like is provided near the product insertion port 8. Further, in this automatic bagging device 1, as illustrated in FIG. 8, a transmissive optical sensor 35 for detecting the position of the bag sheet 17 is arranged in the gap between the conveyor belts 13 ₂ and 13 ₃ , Reflection type optical sensors 36 for detecting the presence or absence of the clamp 12 at an initial position are arranged on both upper sides of the conveyor belt 13 ₁ .

In such a configuration, the checkout counter 2 is formed as a self-scanning system in which the customer performs the registration processing of the product information in the bar code scanner 4 and the accounting processing in the electronic cash register 6. ing.

Therefore, in the checkout counter 2, as shown in FIG. 6, the customer places the cart 37 on which the goods are loaded on the cart scale 3, and by doing so, the cart is placed. The electronic cash register 6 that has read the weight of the product in the cart 37 from the output value of the scale 3 transmits an enable signal to the barcode scanner 4. Therefore, the bar code scanner 4 that has received the enable signal can read the bar code, so that the customer individually takes out the products in the cart 37 and registers them with the bar code scanner 4. At this time, since the weight actually measured by the cart scale 3 is reduced by taking out the product from the cart 37, this reduced value is transmitted to the electronic cash register 6 as the measured weight of the product. Then, when the electronic cash register 6 receives the scanner data read and scanned from the bar code by the bar code scanner 4, the operation of the bar code scanner 4 is temporarily stopped by the transmission of a disable signal, and the product code in the scanner data is used. Search for PLU (Price Look U
p) Product information is selected from a memory (not shown), and the coincidence between the weight contained and the weight actually measured by the cart scale 3 is confirmed. Then, the electronic cash register 6 which has confirmed the coincidence of these weights executes the registration process and then transmits the open command to the automatic bagging apparatus 1.

Therefore, the automatic bagging device 1 that has received the open command is in a state in which the flap 10 is opened and a product can be loaded into the product loading slot 8. When the ON / OFF of the optical sensor 11 is sequentially detected in this state, electronic The flap 10 is closed under the control of the cash register 6. Therefore, the automatic bagging device 1 with the flap 10 closed will send a completion command indicating the completion of registration of one product to the electronic cash register 6 to return to the initial state, and the electronic cash receiving the completion command. The register 6 also returns to the state of transmitting the enable signal to the barcode scanner 4.

Therefore, in the checkout counter 2, various products in the cart 37 are registered by the bar code scanner 4 as described above, and the simple bag 29 under the product insertion port 8 of the automatic bagging apparatus 1 is processed. Will be put in sequence. And in this checkout counter 2,
If the simple bag 29 is filled with the products to be inserted, the customer drives the drive switch 34 on the side of the product insertion port 8.
It is designed to operate. Then, drive switch 3
The automatic bagging device 1 which has detected the operation of 4 closes the flap 10 and carries out the simple bag 29 held under the product inlet 8 by the bag holding mechanism 14 to the bag outlet 9 by the belt conveyor 33. , The following simple bag 29 is attached to the bag holding mechanism 14
Etc. will be set under the product insertion port 8.

At the checkout counter 2, the simple bag 2 under the product inlet 8 of the automatic bagging device 1 is registered by the barcode scanner 4 as described above.
When the loading of the products into 9 is completed, the electronic cash register 6 sends an end command to the automatic bagging device 1 and a disable signal to the bar code scanner 4. Then, the automatic bagging device 1 that has received the end command will deliver the simple bag 29 to the bag outlet 9 after confirming the closure of the flap 10 as described above, and the bar code scanner that has received the disable signal. 4 is temporarily stopped, so the clerk who confirms the completion of the registration process performs the closing operation with the electronic cash register 6.

Here, the operation of the automatic bagging apparatus 1 when the bag sheet 17 is divided into the simple bags 29 and set under the product inlet 8 will be described in detail below with reference to FIGS. 10 and 11. First, in this automatic bagging apparatus 1, the flat bag sheet 17 wound in a sheet shape is conveyed by the conveyor belt 13 ₁
To 13 ₃ is conveyed under product inlet 8, the bag sheet 17 by the light sensor 35 is the second stops the conveyor belt 13 ₁ which holds that when one th simple back 29 ₁ detects that it has moved to the predetermined position The conveyor belt 13 ₂ holding the simple bag 29 _{2 and the} like is reversed. In this way, the conveyor belt 13 one th simple back 29 ₁ held in ₁ perforations 32 in the second following simple back 29
Since it is cut from ₂ , as shown in the figure (a),
Only the _first simple bag 29 ₁ is held between the clamps 12. Therefore, as illustrated in FIG. 2B, the pair of clamps 12 approach each other in this state and the holding claw 1
5 crosses through the upper edge of the simple bag 29 ₁ , and the clamp 12 is separated to both sides so as to close the holding claw 15 in this state as illustrated in FIG. With the simple bag 29 open, the product slot 8
Will be kept below.

[0015]

In the automatic bagging apparatus 1 described above, the holding claws 15 of the pair of clamps 12 that intersect with each other through the tip of the bag sheet 17 are closed, and the clamps 12 are separated from each other in this state. The simple bag 29 is held in an open state.

Here, in the automatic bagging apparatus 1, the holding claws 15 of the clamps 12 are initially opened by a stopper (not shown) while being biased in the closing direction by a spring (not shown) or the like. The clamp opening / closing mechanism is configured to close the holding claw 15 at a predetermined position where the clamp 12 approaches and to open the holding claw 15 at a predetermined position where the clamp 12 is separated by the stopper and the spring. .

That is, in this automatic bagging apparatus 1, when the clamp 12 movably supported by the clamp support mechanism approaches, the stopper of the clamp opening / closing mechanism is disengaged at a predetermined position and the holding claw 15 is moved by the elastic force of the spring. It is designed to be closed. Immediately after the holding claw 15 is closed, the clamp 1
It is set so that the approach of 2 stops and shifts to separation. However, in actuality, due to manufacturing error or aging, the clamp 12 continues to approach even after the holding claw 15 is closed, and excessive load stress acts on the holding claw 15 or the clamp support mechanism, or the holding claw 15 is closed. The clamp 12 may stop approaching before closing, and the holding operation of the simple bag 29 may become impossible.

[0018]

A sheet which is provided with a clamp that supports a pair of holding claws facing each other so as to be openable and closable, and holds a long sheet in which a large number of simple bags are continuously provided via perforations so as to be fed. A clamp support mechanism that is provided with a supply mechanism and that supports the two clamps in a position where the holding claws in the open state intersect with each other via the leading end of the long sheet sequentially fed from the sheet supply mechanism. Is provided
The holding pawl is closed via the tip of the long sheet at a predetermined position where the clamp supported by the clamp support mechanism so as to be able to approach and separate is close, and the holding pawl is opened at a predetermined position where the clamp is separated. In an automatic bagging device provided with a clamp opening / closing mechanism, a closing detection means for detecting that the clamp opening / closing mechanism has closed the holding claw of the clamp is provided, and the clamp support mechanism is provided with the closing detection means according to a detection output of the closing detection means. Position correction means for correcting the position at which the approach of the clamp is stopped is provided.

[0019]

[Effect] Even if the clamp does not stop at the proper position due to manufacturing error or aging, this is automatically corrected, so that the holding claw and clamp support mechanism are overloaded due to the excessive proximity of the clamp. The stress is prevented from acting, and further, it is prevented that the clamp stops approaching before the holding claw is closed and the holding operation of the simple bag becomes unexecutable.

[0020]

Embodiments of the present invention will be described with reference to FIGS. The same parts as those of the automatic bagging device 1 and the checkout counter 2 described above as the prior art are denoted by the same names and reference numerals, and description thereof will be omitted. First, the automatic bagging device 38 of this embodiment is also formed as a part of the checkout counter 39. Here, as shown in FIG. 4, the check-out counter 39 connects the basket placing table 40, the soccer table 41, the bar code scanner 42, and the automatic bagging device 38 in series according to the moving direction of the customer. An electronic cash register 43 is sequentially arranged behind 41. Here, the soccer table 4
1, a belt conveyor 44 is provided on the upper surface, and a register section 45 is formed by the electronic cash register 43 and the bar code scanner 42 which are positioned in an L-shape centering on the belt conveyor 44. A roller conveyor 46 and a product insertion port 47 are provided side by side on the upper surface of the automatic bagging device 38 adjacent to the register unit 45, and a bag unloading port 48 is located adjacent to the product insertion port 47.
Are formed.

In the automatic bagging device 38 of this embodiment,
A bag transfer mechanism (not shown) for pushing out the simple bag 29 is formed from the bottom of the product input port 47 to the bag outlet 48, and a fragile product or a long product that is not suitable for such transfer ( (Both not shown) are placed on the roller conveyor 46 and manually conveyed. In addition, the automatic bagging device 38 of the present embodiment also stores the sheet roll 27 around which the bag sheet 17 is wound so as to be freely fed and the simple bag 29, as in the automatic bagging device 1 described above as the prior art.
Is held by the pair of clamps 49 under the product insertion port 47.

Therefore, the structure of the clamp 49 and the like in the automatic bagging device 38 will be described below in detail with reference to FIGS. 1 and 2. First, in this automatic bagging device 38,
As illustrated in FIG. 1, in the pair of clamps 49, a pair of holding claws 50 facing each other are supported on a clamp body 51 so as to be openable and closable, and are biased in a closing direction by a spring 52. A stopper 53, which holds the holding claw 50 biased in the closing direction in an open state, is rotatably attached to the clamp main body 51 to allow the spring 5 to move.
It is biased in the actuating direction at 4.

Further, in this automatic bagging device 38, as shown in FIG. 2 and FIG. 2, the clamp main body 51 of the clamp 49 is supported by a slide rail 55 so that it can freely come into contact with and separate from the slide rail 55. A drive motor 57 is connected to one side of the reels 56 arranged on both sides, and an endless wire 58 is stretchably stretched around the reel 56. In this way, the pair of clamp bodies 51 are connected to the upper portion and the lower portion of the endless wire 58 stretched in parallel with the slide rail 55, so that the clamp 49 is supported so as to be freely contactable and separable. A clamp support mechanism 59 is formed. In the automatic bagging device 38, the pressing member 61 that is detachably engaged with the roller 60 mounted on the rear end of the holding claw 50 of the clamp 49 is fixed near the both ends of the slide rail 55. The clamp 49 is provided near one end of the slide rail 55.
A position sensor 62 for detecting the presence or absence of the return to the initial position of is provided.

Therefore, in the automatic bagging device 38, when the clamp 49 supported by the clamp support mechanism 59 so as to come into contact with and separate from the clamp 49 is separated to the initial position, the pressing member 61 engages with the roller 60 to hold the same. The claw 50 is opened, and when the holding claw 50 is opened in this way, the stopper 53 is rotated by the elastic force of the spring 54 to hold the holding claw 50 in the open state. It has become. Then, when the clamp 49, in which the holding claw 50 is held in the open state in this way, approaches at a predetermined position by the clamp support mechanism 59, the clamp 49
The stopper 53 holding the holding claw 50 in the open state is released by being pressed by the holding claw 50 of the other clamp 49. By doing so, in the automatic bagging device 38, the spring 52, the stopper 53, the roller 60, the pressing member 61, etc.
A clamp opening / closing mechanism for opening / closing the movable holding claw 50 of the clamp 49 at a predetermined position is formed.

Further, in the automatic bagging device 38, various kinds of information are fixedly stored in advance in a CPU (Central Processing Unit) 63 which executes various kinds of processing operations, as illustrated in FIG. ROM (Read Only Memory) 64,
RAM (Random Access Memory) 65, the drive motor 5
7. The position sensor 62 and the like are connected by a bus 66. Therefore, in this automatic bagging device 38, here, the closing detection means for detecting that the holding claw 50 of the clamp 49 is closed by the change in the rotation speed of the drive motor 57 due to the load change is the CPU 63 or the encoder. (Not shown) or the like, and position correction means for correcting the position at which the clamp support mechanism 59 stops approaching the clamp 49 in accordance with the detection output of the closing detection means,
It is formed by the CPU 63, the RAM 65, and the like.

In such a structure, in the checkout counter 39, the clerk is located on the back side of the soccer table 41 in FIG. 4 (a) so that the customer can move to the front side. The customer sequentially takes out the merchandise from (not shown), and the store clerk performs the registration process and the accounting process. Therefore, the customer places the shopping basket he / she brought in on the basket stand 40, and then sequentially takes out the products by himself / herself and places them on the belt conveyor 44, and the clerk carries the products conveyed by the belt conveyor 44. The electronic cash register 43 of the register unit 45 and the barcode scanner 42 perform registration processing. At this time, when the store clerk inserts the product for which the registration process is completed in this way into the product insertion port 47 of the automatic bagging device 38, the simple bag 29 held in the open state in advance in the product insertion port 47 is stored. Since the merchandise is stored, the clerk who has registered all the merchandise and stored it in the simple bag 29 in this way executes the accounting process for the customer by the electronic cash register 43. Then, at the check-out counter 39, when the above-mentioned accounting process is completed, the simple bag 29 storing the products is transported to the bag outlet 48 by the bag transport mechanism.
Since it is pushed up, the customer takes out the simple bag 29 located inside the bag outlet 48.

The operation of the automatic bagging device 38 when the simple bag 29 is set below the product inlet 8 will be described in detail below with reference to FIG. First, this automatic bagging device 38
Then, similar to the automatic bagging device 1 described above as the prior art, the flat bag sheet 17 wound into a sheet shape is conveyed to below the product insertion port 47 and divided into one simple bag 29, and the clamp 49 is connected. Only the first simple bag 29 is held. At this time, as illustrated in FIG. 9A, the pair of clamps 49 are arranged at the initial positions of both ends of the clamp support mechanism 59, and the holding claws 50 of the clamps 49 are pressed by the pressing member 61.
It is held in an open state by a stopper 53 and the like.

Therefore, as illustrated in FIGS. 2B and 2C, the pair of clamps 49 approach each other by the rotational driving of the drive motor 57 from the above state, and the holding claws 50 are placed on the simple back 29. When crossing through the edge, the holding claws 50 of the intersecting clamps 49 press the stopper 53 of the other clamp 49 to release the holding of the holding claws 50. By doing so, the holding claws 50 of the pair of clamps 49 elastically hold the upper edge portion of the simple bag 29 with the tension of the spring 52 in a state of intersecting the upper edge portion thereof, and the rotational drive is temporarily performed in this state. The stopped drive motor 57 starts rotating in the reverse direction. Then, the pair of clamps 49 are separated to a predetermined position while the simple bag 29 is elastically held by the holding claws 50, so that the simple bag 29 is held below the product insertion opening 47 by these clamps 49. Will be.

As described above, in this automatic bagging device 38, when the clamp 49 which is approached by the clamp support mechanism 59 approaches, the stopper 53 is disengaged at a predetermined position and the holding claw 50 is closed by the elastic force of the spring 52. Immediately after the holding claw 50 is closed, the approach of the clamp 49 is stopped, and the clamp 49 is moved away. And
Such reversal of the moving direction of the clamp 49 is performed by the CPU 6
3 is performed by detecting and managing the number of rotations of the drive motor 57 of the clamp support mechanism 59 with an encoder.

However, in reality, due to manufacturing errors and changes over time, the clamp 49 continues to approach even after the holding claw 50 is closed, and excessive load stress acts on the holding claw 50 and the drive motor 57, or the holding force is increased. There is a concern that the clamp 49 may stop approaching before the pawl 50 is closed, and the holding operation of the simple bag 29 may become impossible. Therefore, in the automatic bagging device 38, in order to prevent the above-mentioned problems, the closing detection means including the CPU 63, the encoder, and the like is used as the holding claw 5 of the clamp 49.
The fact that 0 is closed is detected by a change in the rotation speed of the drive motor 57 due to a load change, and the CPU outputs the detected output.
A position correction unit including 63 and the RAM 65 corrects the position at which the clamp support mechanism 59 stops the approach of the clamp 49.

Therefore, the processing operation of the closing detecting means and the position correcting means will be described in detail below with reference to the flowchart of FIG. First, in the initial state, the pair of clamps 4
9 is arranged at both ends of the clamp support mechanism 59 and detected by the position sensors 62. From such a state, the CPU
Reference numeral 63 drives the drive motor 57 to rotate by the rotation speed "X" preset in the RAM 65 or the like. Therefore, in the normal state, the pair of clamps 49 approach and the holding claw 50 is closed by the rotational driving of the drive motor 57 at the rotation speed "X".
The closing detection means detects that the approaching speed of 9 is rapidly decreased by the change of the rotation speed of the drive motor 57.
In the normal state, the holding claw 50 is closed by the drive motor 5
Since this is performed immediately before the rotation drive of No. 7 is stopped, the rate of change of the rotation speed of the drive motor 57 is smaller than the reference value preset in the RAM 65 or the like.

However, in reality, the drive motor 57 has a preset rotational speed "X" due to manufacturing errors or changes with time.
The holding claw 50 may not be closed due to insufficient approach of the clamp 49 even if it is rotationally driven only, but in this case, the closing detection means does not detect the change in the rotation speed of the drive motor 57 due to the closing of the holding claw 50. become. Then, in this automatic bagging device 38, the position correcting means such as the CPU 63 adds the preset rotational speed "Y" to the rotational speed "X" of the drive motor 57, and only this rotational speed "Y". The drive motor 57 is rotationally driven, and the closing detection means detects whether or not the rotational speed has changed. Therefore, the drive motor 5 is operated until the closing detection means detects the change in the rotation speed.
The addition of the rotation speed "Y" to the rotation speed "X" of 7 is repeated, and the rotation speed thus calculated is updated in the RAM 65 or the like as the new rotation speed "X" of the drive motor 57. It will be.

Further, when the drive motor 57 is rotationally driven by a preset "X", the clamp 49 may approach too much and excessive load stress may be exerted on the holding claws 50 and the like. In this case, The change in the rotation speed of the drive motor 57 due to the closing of the holding claw 50 is larger than the reference value preset in the RAM 65 or the like. Then, in the automatic bagging device 38, the position correcting means such as the CPU 63 subtracts the preset rotational speed "Y" from the rotational speed "X" of the drive motor 57, and the calculation is performed in this way. The RAM 6 is set as the rotation speed "X" of the drive motor 57 having a new rotation speed.
It will be updated to 5 mag.

By doing so, in the automatic bagging device 38, the clamp 49 is caused by a manufacturing error or a change with time.
Is automatically corrected even if the holding claw 5 does not stop at the proper position, the holding claw 5 can be prevented from being excessively approached by the clamp 49.
0 or an excessive load stress on the drive motor 57 is prevented, and the clamp 49 may stop approaching before the holding claw 50 is closed to make the holding operation of the simple bag 29 impossible. To be prevented. Moreover, since the correction operation as described above is automatically performed, the productivity and reliability of the automatic bagging device 38 can be improved.

[0035]

As described above, the present invention is provided with a clamp that supports a pair of holding claws facing each other so as to be openable and closable, and can feed a long sheet in which a large number of simple bags are continuously provided through perforations. A sheet feeding mechanism for holding the two clamps is supported at the position where the holding claws in the open state intersect with each other via the leading end of the long sheet sequentially fed from the sheet feeding mechanism. A clamp support mechanism is provided to close the holding claw via the leading end of the long sheet at a predetermined position where the clamp supported by the clamp support mechanism so as to come in contact with and separate from the clamp comes close to the predetermined position. In an automatic bagging device provided with a clamp opening / closing mechanism for opening the holding claw by means of a closing detection for detecting that the clamp opening / closing mechanism has closed the holding claw of the clamp. By providing a step and providing position correction means for correcting the position at which the clamp support mechanism stops approaching the clamp according to the detection output of the closure detection means, the clamp can be properly clamped due to manufacturing errors, aging, etc. Even if it does not stop at the position, this is automatically corrected, so that excessive load stress on the holding claw and clamp support mechanism due to excessive closeness of the clamp is prevented, and before the holding claw is closed. In addition, the clamp can be prevented from approaching and the holding operation of the simple bag can be prevented from becoming inexecutable.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of an automatic bagging device according to an embodiment of the present invention.

FIG. 2 is a plan view.

FIG. 3 is a block diagram.

FIG. 4 is a perspective view showing a checkout counter using an automatic bagging device.

FIG. 5 is a flowchart showing processing operations of a closing detection unit and a position correction unit.

FIG. 6 is a plan view showing a prior art checkout counter proposed by the applicant.

FIG. 7 is a perspective view showing an automatic bagging device.

FIG. 8 is a vertical sectional side view.

FIG. 9 is a front view showing a bag sheet which is a long sheet.

FIG. 10 is a perspective view showing the operation of the bag holding mechanism.

FIG. 11 is a vertical sectional side view.

[Explanation of symbols]

 17 Long Seat 18 Sheet Supply Mechanism 29 Simple Bag 38 Automatic Bagging Device 49 Clamp 50 Holding Claw 52, 53, 60, 61 Clamp Opening / Closing Mechanism 59 Clamp Supporting Mechanism 63 Closing Detection Means 63, 65 Position Correcting Means

Claims (1)

[Claims] 1. A sheet supply mechanism is provided which has a pair of holding claws opposed to each other so as to be openably and closably supported, and which is provided with a long sheet in which a large number of simple bags are continuously provided via perforations so as to be freely fed. A clamp support mechanism that supports the two clamps so as to be contactable and separable at a position where the holding claws in the open state intersect with each other via the tip portion of the long sheet sequentially fed from the sheet supply mechanism, A clamp that closes the holding claw via the tip of the long sheet at a predetermined position where the clamp supported by a clamp support mechanism is close to and closes and releases the holding claw at a predetermined position where the clamp is separated. In an automatic bagging device provided with an opening / closing mechanism, a closing detection means for detecting that the clamp opening / closing mechanism has closed the holding claw of the clamp is provided. An automatic bagging device, comprising position correction means for correcting the position at which the clamp support mechanism stops approaching the clamp according to the detection output of the means.