WO2018180604A1

WO2018180604A1 - Separating device, bag opening device provided with separating device, and packing system provided with bag opening device

Info

Publication number: WO2018180604A1
Application number: PCT/JP2018/010493
Authority: WO
Inventors: 清水　義之; 犬塚　良治; 福嶋　正造; 直也羽場
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-03-28
Filing date: 2018-03-16
Publication date: 2018-10-04
Also published as: JP6421956B2; JP2018165196A; CN110072790A

Abstract

This separating device separates from each other a plurality of sheets that are disposed by being stacked in the first direction. The sheets have a first sheet at the topmost position, said first sheet having a first end section, and a second sheet positioned under the first sheet, said second sheet having a second end section. The separating device has an inserting piece and a pulling out mechanism. The inserting piece is disposed above the first sheet, and holds the first sheet. The pulling out mechanism slides on the first sheet, thereby removing the first sheet from the inserting piece, and separating from each other the first end section of the first sheet and the second end section of the second sheet.

Description

Peeling device, bag opening device provided with the same, and bag filling system provided therewith

The present disclosure generally relates to a peeling device, a bag opening device including the peeling device, and a bagging system including the same, and more specifically, a peeling device for peeling a sheet from a predetermined surface, a bag opening device including the device, And a bagging system including the same.

Patent Document 1 describes a bag opening device that conveys bags (storage bags) one by one to a predetermined position with the bag mouth (opening) opened.

In the apparatus described in Patent Document 1, the upper surface of the uppermost bag placed on the lifting plate is pressed by a roller and rotated to slide the upper surface side sheet of the bag to the bottom side, thereby Only the side sheet is pulled. Thereby, the upper surface side sheet peels from the lower surface side sheet, the upper surface side sheet is turned up, and the bag mouth is automatically opened.

Furthermore, in the apparatus described in Patent Document 1, the arm in the gripping and conveying device is rotated while the bag mouth is opened, and at the same time, the movable gripping piece is rotated to a position that matches the fixed gripping piece. Then, the opening of the bag is sandwiched between the movable gripping piece and the fixed gripping piece. Then, by turning the arm, the bag is pulled out with the bag mouth being largely open.

JP-A-8-133245

The peeling device peels a plurality of sheets arranged in the first direction. The plurality of sheets include a first sheet that is positioned at the uppermost position and has a first end portion, and a second sheet that is positioned below the first sheet and has a second end portion. The peeling device has an insertion piece and a pulling mechanism. The insertion piece is arranged above the first sheet and holds the first sheet. The pulling mechanism slides on the first sheet to remove the first sheet from the insertion piece, and separates the first end of the first sheet from the second end of the second sheet.

FIG. 1 is an external view of a bagging system according to an embodiment. FIG. 2 is a block diagram of the shopping support system according to the embodiment. FIG. 3 is an external perspective view of a counter table to which the shopping support system according to the embodiment is applied. FIG. 4 is a plan view of a main part of the bag opening device according to the embodiment. Drawing 5 is a principal part front view of the bag opening device concerning an embodiment. FIG. 6A is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 6B is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 6C is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 6D is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 6E is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 7A is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 7B is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 7C is an explanatory diagram of the operation of the bag opening device according to the embodiment. FIG. 8 is a perspective view of a main part of the bag opening device according to the embodiment. FIG. 9 is a perspective view of a bag storage case of the bag opening device according to the embodiment. FIG. 10 is a perspective view of a first block of the bag opening device according to the embodiment. FIG. 11 is a perspective view of a second block of the bag opening device according to the embodiment. FIG. 12 is a perspective view of a main part of the bagging device of the bagging system according to the embodiment. Drawing 13A is an explanatory view of operation at the time of bagging of the bagging device concerning an embodiment. Drawing 13B is an explanatory view of operation at the time of bagging of the bagging device concerning an embodiment. Drawing 13C is an explanatory view of operation at the time of bagging of the bagging device concerning an embodiment. Drawing 14A is an explanatory view of operation at the time of discharge of the bagging device concerning an embodiment. Drawing 14B is an explanatory view of operation at the time of discharge of the bagging device concerning an embodiment.

In the apparatus described in Patent Document 1, the sheet (upper surface side sheet) is peeled from the predetermined surface (lower surface side sheet) by rotating the roller that presses the upper surface of the bag, so that the peeled sheet is caught in the rotating roller. There is a possibility. When the peeled sheet is wound on the roller, the operation of opening the bag mouth cannot be completed normally. Therefore, a peeling device that opens the bag mouth more accurately than the device described in Patent Document 1 is required.

(1) Overview FIG. 1 is an external view of a bagging system 10 according to an embodiment. As shown in FIG. 1, the bag opening device 1 according to the present embodiment is used for supplying a bag 7 to the bagging device 3 as an example. The bag opening device 1 and the bagging device 3 constitute a bagging system 10.

The bagging system 10 is introduced into retail stores such as convenience stores, supermarkets, department stores, drug stores, home appliance mass retailers, and home centers. The bagging system 10 is a system for bagging products (articles) purchased by a customer. Here, “packing” means an operation of storing (putting) one or a plurality of products 91 (see FIG. 3) in the bag 7. The “bag” may be a bag that is large enough to receive the product 91 and has a bag mouth 71 (see FIG. 4) for taking in and out the product 91. For example, a shopping bag made of polyethylene or polypropylene (so-called cash register). Bag).

The bagging device 3 is installed in, for example, a cash register counter or bagging table in a store, and is placed in a predetermined bagging space S1 (see FIG. 13A) set on the placement surface 311 (see FIG. 13A). The product 91 is packed in a bag. Thereby, the customer can receive the product 91 stored in the bag 7 simply by placing the product 91 to be purchased in the bagging space S1. Therefore, a customer or a store employee (store clerk) can use the bagging device 3 to save time and effort for bagging.

The bagging device 3 can pack the product 91 by setting (supplying) the bag 7 with the bag mouth 71 open. Therefore, the bag opening device 1 performs bag opening and supplies the bags 7 with the bag mouths 71 opened one by one to the bagging device 3, so that the bag of the product 91 in the bagging device 3 can be obtained. Allows stuffing. “Bag opening” here means an operation of opening the bag mouth 71 so that the opening area of the bag mouth 71 is widened for the bag 7 with the bag mouth 71 closed.

Details will be described in the section of “(2.2) Basic configuration of bag opening device”. However, the bag opening device 1 executes bag opening for the bag 7 with the bag mouth 71 closed. The bag 7 includes a first sheet 7A (see FIG. 4) and a second sheet 7B (see FIG. 4), and a bag mouth 71 is formed between the first sheet 7A and the second sheet 7B. It is configured. In FIG. 4, one sheet of the bag 7 is the first sheet 7A, and the other sheet is the second sheet 7B. In the state where the bag mouth 71 is closed, the bag 7 is in a state where the first sheet 7A and the second sheet 7B overlap each other. The bag opening device 1 targets the bag 7 in this state, peels the first sheet 7A from the second sheet 7B, captures the peeled first sheet 7A by the capturing unit 17, and the second sheet 7B. The bag opening is executed by moving the capturing part 17 so as to widen the bag mouth 71 therebetween. The bag opening device 1 enables the bagging of the product 91 in the bagging device 3 by setting (supplying) the bag 7 with the bag mouth 71 opened in this manner to the bagging device 3.

Moreover, in this embodiment, the bagging system 10 comprises the shopping support system 100 (refer FIG. 2) for supporting a customer's shopping in stores, such as a retail store, with the sales system 4 (refer FIG. 2). . In other words, the shopping support system 100 includes the bag filling system 10 and the sales system 4.

The sales system 4 is a system for performing sales processing of the product 91. Here, “sales processing” refers to various processes necessary for the act of transferring (buying and selling) the merchandise 91 from the seller (store) to the buyer (customer) and paying the consideration (price) to the seller. Means. For example, the sales process includes an acquisition process for acquiring the product information of the product 91 picked up by the customer in the store, an order process for receiving designation of the product 91 desired to be purchased from the customer, and the like.

In the shopping support system 100, the following functions are realized by linking the sales system 4 and the bagging system 10.

That is, at the store where the shopping support system 100 is introduced, the customer picks up one or a plurality of products 91 in the store and stores them in the shopping basket 92 (see FIGS. 2 and 3), and places the shopping basket 92 in the bagging space S1. In the state placed on (see FIG. 13A), the sales system 4 performs settlement of the product 91 and the like. The sales system 4 packs the product 91 by operating the bagging device 3 while the customer pays the product 91 in the sales system 4. When the bagging in the bagging device 3 is completed, the sales system 4 operates the bag opening device 1 to supply the bag 7 to the bagging device 3 in preparation for the next bagging. As a result, the customer picks up the product 91, pays the product 91 in the sales system 4, and then receives the packaged product 91, and then completes shopping. it can. As a result, in the process where the customer purchases the product 91 at the store, the store clerk's intervention is not essential. As a result, according to the shopping support system 100, it is possible to reduce the labor of the store clerk and the customer who spend on the customer's shopping.

(2) Details Hereinafter, the bagging system 10 according to the present embodiment and the shopping support system 100 including the same will be described in detail. In the present embodiment, a convenience store will be described as an example of a store where the shopping support system 100 is introduced. In this embodiment, a polyethylene shopping bag (so-called shopping bag) is used as an example of the bag 7. Here, the subject placing the product 91 in the bagging space S1 is not limited to the customer, but may be a store clerk. For example, in the case of commodities such as cigarettes placed in the cash register counter, the store clerk places the merchandise 91 in the bagging space S1, not the customer.

(2.1) Shopping Support System Here, first, the overall configuration of the shopping support system 100 according to the present embodiment will be described. As shown in FIGS. 2 and 3, the shopping support system 100 includes a bagging system 10 (bag opening device 1 and bagging device 3), a sales system 4, and a shopping basket 92. FIG. 2 is a block diagram of the shopping support system 100 according to the embodiment. FIG. 3 is an external perspective view of the counter table 8 to which the shopping support system 100 according to the embodiment is applied.

The sales system 4 includes a management device 41, a supply unit 42, a display device 43, an input device 44, an audio output unit 45, and a settlement unit 46. The supply unit 42, the display device 43, the input device 44, the audio output unit 45, and the payment unit 46 are all peripheral devices of the management device 41 and are connected to the management device 41.

The management device 41 receives the product information transmitted from the shopping basket 92. The “product information” here is information (product identification code) for identifying the product 91, and is, for example, a JAN (Japan Article Number) code used in Japan. Furthermore, the management apparatus 41 is comprised so that communication with the shop terminal which consists of a POS (Point Of Sales) terminal, for example is possible. The management device 41 can perform a checkout process for the product 91 based on the product information received from the shopping basket 92. The management device 41 is electrically connected to the bagging system 10 and is configured to be able to control the bagging system 10. Here, the bagging system 10 includes a bag opening device 1 and a bagging device 3.

The supply unit 42 is a device that supplies a specific product (for example, tobacco) to a customer. The display device 43 is a device that performs various displays for customers. The input device 44 is a device that accepts a customer's operation by, for example, gesture detection. Further, the input device 44 includes a microphone, and has a function of performing voice recognition and semantic analysis processing on a voice signal input to the microphone. Therefore, the customer can also perform voice operations (voice input). The audio output unit 45 is a device that includes a speaker and presents various types of information to customers by audio.

That is, the sales system 4 uses the display device 43, the input device 44, and the voice output unit 45 as a user interface, thereby presenting various information to the customer by display or voice, and customer operations (including voice input). Can be accepted. However, presentation of information by the sales system 4 may be realized by at least one of display and sound. That is, the presentation of information by the sales system 4 may be realized by either display or voice, or may be realized by a combination of display and voice.

The shopping basket 92 includes a battery and a circuit block including various circuits and modules that operate by receiving power supply from the battery. The shopping basket 92 not only stores the product 91 but also has a function of communicating with the sales system 4 (management device 41) and a function of reading product information of the product 91. The shopping basket 92 reads product information using, for example, a bar code reader or an image sensor. Thereby, the shopping basket 92 can read the product information from the product 91 and transmit it to the sales system 4 while accommodating the product 91 picked up by the customer in the store.

Details will be described in the section of “(2.4) Bagging device”, but the bagging device 3 can bag the product 91 in the shopping basket 92. In other words, the customer puts the product 91 picked up in the store into the shopping basket 92 and places the product 91 together with the shopping basket 92 in the bagging space S 1 described later, thereby causing the bagging apparatus 3 to pack the product 91. be able to. Therefore, the customer does not need to take out the product 91 from the shopping basket 92 for bagging, and can easily pack the product 91 using the bagging device 3. When a plurality of products 91 are accommodated in the shopping basket 92, the bagging device 3 can pack the plurality of products 91 in a lump. In the present embodiment, the management device 41 operates in conjunction with the sales system 4 so that the product 91 is packaged while the customer is paying for the product 91 in the sales system 4. 3 is controlled. For example, the bagging device 3 starts bagging of the product 91 with a trigger that the checkout process is started or completed in the sales system 4.

The bag opening device 1 takes out the bags 7 one by one from the bag storage case 13 (see FIG. 1) in which a plurality of bags 7 are stocked, and supplies the taken bags 7 to the bagging device 3. In the present embodiment, the management device 41 controls the bag opening device 1 in conjunction with the bagging device 3 so that one bag 7 is always set (arranged) in the bagging device 3. That is, the bagging device 3 is configured to perform bagging using one bag 7 supplied from the bag opening device 1, and each time the bagging device 3 performs bagging once. In preparation for the next bagging, new bags 7 are supplied from the bag opening device 1 to the bagging device 3 one by one. In other words, the bag opening device 1 starts the supply of the bag 7 to the bagging device 3 by using the completion of bagging by the bagging device 3 as a trigger.

Incidentally, as shown in FIG. 3, the shopping support system 100 is provided, for example, around one counter stand 8 installed in a cash register counter of a store, excluding the shopping basket 92. That is, the bagging system 10 and the sales system 4 are provided around the counter table 8. A plurality of such counter stands 8 may be installed for one store.

3, the bagging system 10 (the bag opening device 1 and the bagging device 3) and the management device 41 are built in the counter base 8.

The counter stand 8 is formed with a recess 82 that opens at a substantially central portion in the width direction (left-right direction, X-axis direction) of the upper surface 81. The recess 82 forms a bagging space S1 (see FIG. 13A). In the example of FIG. 3, the shopping basket 92 is placed in the recess 82 (that is, the bagging space S 1). However, the shopping basket 92 is held in a hand or placed on a cart when the customer moves in the store. Because it is used, it is not fixed in place. A collection device 83 that collects the shopping basket 92 is disposed in the back of the recess 82 when the counter table 8 is viewed from the front. A bagging system 10 is installed below the recess 82.

Here, the shopping basket 92 is configured such that, for example, the bottom plate is slidable. As a result, the bottom of the shopping basket 92 can be opened and closed, and the product 91 accommodated in the shopping basket 92 can be discharged from the bottom of the shopping basket 92. Further, the bottom surface of the recess 82 is configured by an openable / closable shutter 821 (see FIG. 1). In the state where the shutter 821 is opened, the placement surface 311 of the bagging device 3 located below the recess 82 is exposed from the bottom surface of the recess 82. Therefore, if the bottom plate of the shopping basket 92 placed in the bagging space S1 is opened with the shutter 821 opened, the product 91 in the shopping basket 92 is placed on the placement surface 311 of the bagging apparatus 3. Discharged. Details will be described in the column “(2.4) Bagging Device”, but the bagging device 3 packs the product 91 placed on the placement surface 311. Therefore, the product 91 in the shopping basket 92 can be packaged.

The supply unit 42 is suspended from the ceiling so as to be positioned above the counter base 8. The display device 43 is fixed to the lower surface of the supply unit 42 and is configured to project an image on a screen by, for example, a projection mapping technique. Here, the display device 43 projects an image on an area on the right side of the recess 82 of the upper surface 81 of the counter table 8 when the counter table 8 is viewed from the front. That is, the area on the right side of the recess 82 in the upper surface 81 of the counter table 8 is the screen of the display device 43. The input device 44 is installed on the upper surface 81 of the counter table 8 and at the back of the screen when the counter table 8 is viewed from the front. The input device 44 is integrally provided with an audio output unit 45.

The positional relationship and shape of each part of the shopping support system 100 described above are merely examples, and can be changed as appropriate. For example, the bagging device 3 and the recess 82 may be disposed at one end portion (left end portion or right end portion) of the counter base 8 in the width direction (left-right direction). Further, the formation of the recess 82 in the counter table 8 is not an essential configuration for the shopping support system 100. For example, a bagging space S 1 may be set on the upper surface 81 of the counter base 8.

Hereinafter, it will be described that the counter table 8 is installed in such a direction that the upper surface 81 of the counter table 8 is a horizontal plane unless otherwise specified. That is, the direction orthogonal to the upper surface 81 of the counter table 8 is the vertical direction (vertical direction). Further, hereinafter, the width direction (left-right direction) of the counter base 8 is referred to as “X-axis direction”, the depth direction (front-rear direction) is referred to as “Y-axis direction”, and the vertical direction (vertical direction) is referred to as “Z-axis direction”. To do. That is, the X-axis direction, the Y-axis direction, and the Z-axis direction are directions orthogonal to each other. Further, when distinguishing the positive direction and the negative direction in the Z-axis direction, the positive direction in the Z-axis direction is “upward” and the negative direction in the Z-axis direction is “ It is described as “downward”. Similarly, when distinguishing the positive direction and the negative direction in the X-axis direction, the positive direction in the X-axis direction is “right” and the negative direction in the X-axis direction is based on the direction in FIG. Is described as “left”. Similarly, when distinguishing the positive direction and the negative direction in the Y-axis direction, the positive direction in the Y-axis direction will be described as “front”, and the negative direction in the Y-axis direction will be described as “rear”. The arrows indicating the “X-axis direction”, “Y-axis direction”, and “Z-axis direction” in the drawings are merely shown for explanation, and do not involve an entity. However, these directions are not intended to limit the direction when the shopping support system 100 is used. For example, the shopping support system 100 is used in a state where the upper surface 81 of the counter table 8 is slightly inclined with respect to the horizontal plane. Also good.

FIG. 1 is a view of the counter table 8 as viewed from the rear (negative direction in the Y-axis direction). A part of the counter table 8 is broken, and a bagging system 10 (bag) built in the counter table 8 is shown. It is the schematic which made the principal part of the opening apparatus 1 and the bagging apparatus 3) visible. In FIG. 1, illustration of components that are not necessary for the following description is omitted as appropriate.

(2.2) Basic Configuration of Bag Opening Device Next, the basic configuration of the bag opening device 1, which is one component of the bag filling system 10 in the shopping support system 100, will be described with reference to FIGS. 4 to 7C. explain.

The bag opening device 1 is a device for setting (supplying) the bag 7 with the bag mouth 71 open to the bagging device 3. The bag opening device 1 operates so as to cover the support portion 31 (see FIG. 12) and the guide portion 32 (see FIG. 12) in the bag filling device 3 with the bag 7 with the bag mouth 71 facing downward. . Details of the bagging device 3 will be described in the section “(2.4) Bagging device”.

As shown in FIG. 4, the bag opening device 1 opens the bag for the bag 7 that is folded so that the bag mouth 71 is closed. FIG. 4 is a plan view of a main part of the bag opening device 1 according to the embodiment. The bag 7 includes a first sheet 7A and a second sheet 7B, and a bag mouth 71 is formed between the first sheet 7A and the second sheet 7B. In the state where the bag mouth 71 is closed, the bag 7 is in a state where the first sheet 7A and the second sheet 7B overlap each other in the first direction which is the thickness direction of each of the first sheet 7A and the second sheet 7B. That is, in the state where the bag 7 is folded, the two sheets (the first sheet 7A and the second sheet 7B) are overlapped, so that the space between the first sheet 7A serving as the upper surface and the second sheet 7B serving as the lower surface. The bag mouth 71 formed in the closed state is closed. The first sheet 7 A and the second sheet 7 B are at least a part of the side peripheral portion 73 continuous with the bottom portion 72 of the bag 7.

More specifically, the bag 7 to be opened by the bag opening device 1 is folded in the state described below. That is, the folded bag 7 has a first bottom 72A and a first opening end 71A (first end) which are both ends of the first sheet 7A in the second direction orthogonal to the first direction. The second sheet 7B faces the second bottom 72B and the second opening end 71B (second end), which are both ends in the second direction, in the first direction. Further, the first bottom portion 72A and the second bottom portion 72B are connected directly or indirectly. On the other hand, the bag mouth 71 opens between the first opening end 71A and the second opening end 71B. In other words, in the first sheet 7A and the second sheet 7B that overlap in a state where the bag 7 is folded, the end portions on the bottom portion 72 side become the first bottom portion 72A and the second bottom portion 72B, respectively, and the end portion on the bag mouth 71 side is It becomes the first opening end 71A and the second opening end 71B, respectively. That is, in the state in which the bag 7 is folded, the first sheet 7A and the second sheet 7B are connected at one end in the second direction, and the other end forms a bag mouth 71 therebetween.

In the present embodiment, a plurality of bags 7 to be opened are prepared in a state where a plurality of bags 7 are stacked in the vertical direction. Therefore, the first direction which is the thickness direction of the first sheet 7A and the second sheet 7B is the “Z-axis direction”. Furthermore, the second direction orthogonal to the first direction is the “X-axis direction”. That is, a plurality of bags 7 to be opened are prepared in a state where one side in the X-axis direction is the bag mouth 71 and the other is the bottom 72. The third direction orthogonal to both the first direction and the second direction is the “Y-axis direction”.

For the bag 7 in the state described above, the bag opening process executed by the bag opening device 1 is a first stage process for opening the bag mouth 71 relatively small and a second stage for opening the bag mouth 71 relatively large. The process is roughly divided into two stages.

That is, as a first stage process, the bag opening device 1 includes only the first opening end 71A on the first bottom 72A side of the first opening end 71A and the second opening end 71B that are overlapped with each other. By moving, the first opening end 71A is separated from the second opening end 71B. Here, “separation” means that the two members are separated from each other. Thus, in the first stage, the first opening end 71A and the second opening end 71B are moved relative to the second opening end 71B along the second direction (X-axis direction), thereby The bag mouth 71 between the second opening end portion 71B opens small.

Moreover, as a process of the second stage, the bag opening device 1 inserts the insertion piece 21 (see FIG. 5) into the bag opening 71 opened in the first stage, so that the first opening end part from the second opening end part 71B. 71A is peeled off, and the capturing part 17 (see FIG. 5) that captured the peeled first opening end part 71A is moved. Thus, in the second stage, the first opening end 71A can be further separated from the second opening end 71B, and as a result, the bag between the first opening end 71A and the second opening end 71B. The mouth 71 will open greatly.

The above-described first-stage process and second-stage process correspond to the following operations that are performed when a person manually opens the bag 7 in the folded state. That is, in the first stage process, a person picks the first opening end portion 71A and the second opening end portion 71B with two fingers and rubs the two fingers to make the first opening end portion 71A. This corresponds to an operation of opening the bag mouth 71 between the first opening end 71B and the second opening end 71B. In the second stage process, a person inserts a finger into the bag mouth 71 that is opened small by the above operation, and picks each of the first opening end portion 71A and the second opening end portion 71B with separate hands. This corresponds to an operation of largely opening the bag mouth 71 by peeling off the end portion 71A from the second opening end portion 71B.

Hereinafter, the basic configuration of the bag opening device 1 will be described by dividing it into a configuration for realizing the first stage processing and a configuration for realizing the second stage processing. 6A to 6E mainly show the operation of the bag opening device 1 related to the first stage processing, and FIGS. 7A to 7C mainly show the operation of the bag opening device 1 related to the second stage processing. Yes. In the present embodiment, since a part of the second stage process overlaps with the first stage process, FIGS. 6A to 6E show detailed operations of the bag opening device 1 shown in FIGS. 7A and 7B. It corresponds to an explanatory diagram. 6A to 7C schematically show the operation of the bag opening device 1, and illustration of the movable device 5 (see FIG. 1) and the like is omitted as appropriate. In FIGS. 6A to 6E, the state of each part before movement is indicated by an imaginary line (two-dot chain line).

First, as a configuration for realizing the processing of the first stage, the bag opening device 1 includes a holding unit 19, a contact unit 14, and a driving unit 15, as shown in FIG. Drawing 5 is a principal part front view of bag opening device 1 concerning an embodiment.

The holding unit 19 holds the first opening end 71A and the second opening end 71B. The contact part 14 contacts the bag 7 from the first sheet 7A side (upper side) in the first direction (Z-axis direction). The drive unit 15 releases the holding of the first opening end 71 A by the holding unit 19 by moving the contact unit 14 toward the first bottom 72 A (left side) along the second direction (X-axis direction). Then, the first opening end 71A is separated from the second opening end 71B.

In short, as shown in FIG. 6A, the bag opening device 1 holds the first opening end 71 A and the second opening end 71 B (see FIG. 6B) from the upper side with the holding part 19. Contact the bag 7. In this state, as shown in FIG. 6B, the bag opening device 1 moves the contact portion 14 in contact with the first sheet 7A along the second direction (X-axis direction), that is, along the second sheet 7B. Move to the left. As a result, of the first sheet 7A and the second sheet 7B, only the first sheet 7A is pulled to the left by the contact part 14, and the holding of the first opening end 71A by the holding part 19 is released, and the first sheet 7A is released. The opening end 71A is separated from the second opening end 71B. That is, since the friction coefficient between the first sheet 7A and the second sheet 7B is smaller than the friction coefficient between the first sheet 7A and the contact portion 14, the first sheet while sliding on the second sheet 7B. Only 7A will be pulled to the left. Therefore, only the first opening end portion 71A out of the first opening end portion 71A and the second opening end portion 71B is released from the holding portion 19. As a result, the bag opening 71 between the first opening end 71A and the second opening end 71B opens relatively small.

Further, as a configuration for realizing the second stage processing, the bag opening device 1 includes a peeling device 2 and a movable device 5. The peeling apparatus 2 peels from the predetermined surface 700 (refer FIG. 6B) which is the upper surface of the 2nd sheet 7B by making the 1st sheet 7A into the "sheet | seat" of peeling object among the bags 7 of the folded state. The peeling device 2 includes an insertion piece 21, a drawing mechanism 22, and a capturing unit 17.

The insertion piece 21 has a predetermined surface 700 (in the Z-axis direction) in the first direction (Z-axis direction) with respect to one end portion (first opening end portion 71A) on one side in the second direction of the sheet (first sheet 7A). The second sheet 7B is disposed on the opposite side (upper side) of the upper surface. The pulling mechanism 22 pulls out the first opening end 71A along the second direction from between the upper surface of the second sheet 7B and the insertion piece 21. Then, the pulling mechanism 22 moves the first opening end portion 71A to a position opposite to the second sheet 7B (that is, upward) with respect to the insertion piece 21 in the first direction. The capturing portion 17 captures the first opening end portion 71A in a state in which the capturing portion 17 is moved to a position opposite to the second sheet 7B (that is, upward) with respect to the insertion piece 21 in the first direction. The movable device 5 captures the capturing portion 17 in a state where the first opening end portion 71A is captured along the second direction opposite to the first bottom portion 72A (right direction in FIGS. 7A to 7C, positive direction in the X-axis direction). ) To open the bag mouth 71.

In short, as shown in FIG. 6A and FIG. 6B or FIG. 7A, the bag opening device 1 has a first opening in the pulling mechanism 22 with the insertion piece 21 disposed above the first opening end 71A. The end portion 71A is pulled out from the lower side of the insertion piece 21 in the negative direction (leftward) in the X-axis direction. As shown in FIGS. 6C and 6D, the bag opening device 1 covers the first opening end 71 A above the insertion piece 21 by covering the insertion opening 21 with the extracted first opening end 71 A from above. Move to. Thereby, the situation where the insertion piece 21 is inserted between the second sheet 7B and the first opening end portion 71A is realized, and the first opening end portion 71A extends from the upper surface (predetermined surface 700) of the second sheet 7B. It is peeled off. Furthermore, as shown in FIG. 6E or FIG. 7B, the bag opening device 1 captures the peeled first opening end portion 71A by the capturing portion 17, and as shown in FIG. By moving to the position, the bag mouth 71 opens relatively large.

Here, the extraction mechanism 22 is realized by, for example, the contact unit 14 and the drive unit 15 described above. That is, the pulling mechanism 22 moves the contact portion 14 along the second direction (X-axis direction), that is, along the second sheet 7B, with the contact portion 14 being in contact with the bag 7 from above. Move in the negative direction (left). At this time, of the first sheet 7A and the second sheet 7B, only the first sheet 7A is pulled by the contact portion 14 in the negative direction (leftward) in the X-axis direction. As a result, the first opening end 71 A is turned up and rides on the insertion piece 21.

With the basic configuration described above, the bag opening device 1 has two stages, that is, a first stage process for opening the bag mouth 71 relatively small and a second stage process for opening the bag mouth 71 relatively large as described above. Can be realized.

(2.3) Specific Configuration of Bag Opening Device Next, a specific configuration of the bag opening device 1 according to the present embodiment will be described with reference to FIGS. That is, the bag opening apparatus 1 having the basic configuration as described above is realized by a specific configuration described below as an example.

As shown in FIG. 8, the bag opening device 1 has three blocks: a first block 11, a second block 12, and a bag storage case 13.

The bag storage case 13 is an instrument for stocking the bags 7. As described above, the bag storage case 13 can collectively store a plurality of (for example, a maximum of 100) bags 7 that are folded so that the first sheet 7A and the second sheet 7B overlap each other. The bag opening device 1 takes out the bags 7 one by one from the bag storage case 13 in which a plurality of bags 7 are stocked, and supplies the taken bags 7 to the bagging device 3. At this time, the bag opening device 1 supplies the taken-out bag 7 to the bagging device 3 with the bag mouth 71 opened.

Here, as shown in FIGS. 5 and 9, the bag storage case 13 stores a bag bundle 70 having a plurality of bags 7 in a state of being overlapped with each other in the first direction which is the thickness direction. The bag bundle 70 is connected to at least a part of the plurality of bags 7 in a state where the plurality of bags 7 are stacked. Thereby, it is possible to handle a plurality of bags 7 in an integrated state without the individual bags 7 being separated. That is, the bag storage case 13 does not store a plurality of bags 7 individually, but can store a plurality of bags 7 together as a bag bundle 70 in which a plurality of bags 7 are bundled. Although the number of bags 7 included in the bag bundle 70 can be changed as appropriate, the bag bundle 70 is configured by bundling 100 bags 7 as an example.

The bag storage case 13 is used in a state where it is stored in a space set in the counter block 8 and below the first block 11. That is, the bag storage case 13 in which at least one bag 7 is stored is disposed below the first block 11, so that the bag 7 can be removed from the bag storage case 13 by the bag opening device 1. It becomes possible. The bag storage case 13 can be removed from the counter table 8, and the bag storage case 13 is replenished with the bag storage case 13 removed from the counter table 8.

Here, the bag storage case 13 has a function as the holding portion 19 that holds the first opening end portion 71A and the second opening end portion 71B in the basic configuration of the bag opening device 1 described above. That is, the bag storage case 13 has a case main body 131 and a holding portion 19.

The case body 131 stores the bag bundle 70. The holding unit 19 holds the bag bundle 70 by holding the first opening end 71 A and the second opening end 71 B in the case main body 131. In the present embodiment, the case main body 131 includes a body 132 and a cover 133. The body 132 and the cover 133 are made of synthetic resin, for example. The cover 133 is disposed so as to face the upper surface of the body 132 so as to cover only the left half of the body 132. Thereby, a space for storing the bag bundle 70 is formed between the body 132 and the cover 133. Here, the cover 133 is configured to be openable and closable with respect to the body 132. That is, the cover 133 is configured to be movable between a closed position in which the bag bundle 70 is accommodated with the body 132 and an open position in which the bag bundle 70 is opened. In the present embodiment, the case body 131 has a hinge structure at the right end, and the cover 133 is connected to the body 132 by the hinge structure. The case body 131 is provided with an outlet 134 for taking out each of the plurality of bags 7. The outlet 134 opens at the right end of the upper surface of the case body 131 (the upper surface of the cover 133).

Here, the bag bundle 70 has a separating portion 76 (see FIG. 4) that is detachably connected to the plurality of bags 7. In the present embodiment, the separation portion 76 is connected to the central portion of the bag mouth 71 in each bag 7. Specifically, the separation portion 76 is connected to the first opening end portion 71A and the second opening end portion 71B at the center portion of each bag 7 in the Y-axis direction. A cut line 77 (see FIG. 4) for separating individual bags 7 from the separation portion 76 is formed between the separation portion 76 and each of the plurality of bags 7. On the cut line 77, for example, perforation or the like is performed so that the bag 7 can be easily separated along the cut line 77. Each of the plurality of bags 7 is preferably embossed on the surface. Thereby, the 1st sheet 7A and the 2nd sheet 7B are easy to separate, and a bag opening becomes easy. Further, in the state of the bag bundle 70, a pair of adjacent bags 7 can be easily separated from each other, and one bag 7 can be easily taken out from the bag bundle 70.

The holding part 19 holds the separation part 76 of the bag bundle 70, and each of the plurality of bags 7 is separated from the separation part 76, whereby the bag 7 (the first opening end 71 A and the second opening 7 is opened). The end portion 71B) is configured to be released. For example, the holding part 19 has a pin inserted into the hole of the separation part 76, and with the pin passing through the separation part 76, the separation part 76 is sandwiched between the body 132 and the holding part 19. The separation part 76 is held. In this way, the bag bundle 70 is held by the holding unit 19 by the separating unit 76. Since each of the plurality of bags 7 is connected to the separation portion 76 via the cut line 77, it is separated from the separation portion 76 by the cut line 77. Holding is released.

Here, as shown in FIG. 9, the plurality of bags 7 in the bag bundle 70 are in a state where the bag mouth 71 is directed rightward (positive direction in the X-axis direction) and each bag mouth 71 is closed. Are stored in the bag storage case 13 so as to overlap in the Z-axis direction. Each of the plurality of bags 7 has a pair of handles 74 located at both ends of the bag mouth 71 in the Y-axis direction, and a central portion of the bag mouth 71 in the Y-axis direction is separated by a cut line 77. 76. In the bag storage case 13 according to the present embodiment, the bag bundle 70 stored in such a state is sandwiched between the body 132 and the cover 133. Therefore, in each of the plurality of bags 7, for example, when air enters from the bag mouth 71, the space between the first sheet 7 A and the second sheet 7 B is suppressed from expanding in the Z-axis direction. Expansion of the dimension in the Z-axis direction is suppressed.

With the configuration as described above, the bag storage case 13 can store a plurality of bags 7 together. In addition, since the bag storage case 13 holds the bag bundle 70 having the plurality of bags 7 by the holding unit 19, it is possible to suppress the plurality of bags 7 from being separated in the bag storage case 13. Furthermore, the bag storage case 13 can take out the bags 7 one by one from the outlet 134 that opens at the right end of the upper surface of the case body 131. That is, at least one bag 7 is exposed from the outlet 134 formed on the upper surface of the case body 131. Since the outlet 134 is located at the right end of the case main body 131, the end of the bag 7 on the bag mouth 71 side is exposed from the outlet 134. Therefore, in a state in which one bag 7 exposed from the outlet 134 is captured by some means, the bag 7 is pulled upward (in the positive direction in the Z-axis direction) to release the holding at the holding portion 19. The single bag 7 can be taken out from the bag storage case 13 through the outlet 134.

Incidentally, as shown in FIG. 5, the bag storage case 13 holds the bag 7 (bag bundle 70) from the side opposite to the contact portion 14 with respect to the bag 7 so that the bag 7 is sandwiched between the bag 7 and the contact portion 14. A support surface 135 is further provided. The support surface 135 has a step structure so that the portion that supports the first bottom portion 72A is located farther (downward) from the contact portion 14 in the Z-axis direction than the portion that supports the first opening end portion 71A. 136. In the present embodiment, the support surface 135 is composed of the upper surface of the body 132. That is, a portion of the body 132 corresponding to the outlet 134 protrudes upward (positive direction in the Z-axis direction), and a protrusion 137 that supports the bag bundle 70 is formed. Thereby, the bag bundle 70 stored in the bag storage case 13 does not have a flat upper surface, but only the end portion on the bag mouth 71 side exposed from the outlet 134 is raised upward. In other words, the bag bundle 70 is in a state in which at least a part in the X-axis direction including the bag mouth 71 is supported from below by the protrusion 137 and is lifted upward compared to other parts. It is stored in the storage case 13.

The first block 11 has functions as the contact portion 14 and the drive portion 15 in the basic configuration of the bag opening device 1 described above, as shown in FIGS. 5 and 10. That is, the first block 11 includes a contact part 14 and a drive part 15. In other words, the first block 11 has a function as the pulling mechanism 22 (see FIG. 1) in the peeling device 2.

The first block 11 has a first frame 111. The first frame 111 is a metal or resin frame member, and is fixed to the frame 80 (see FIG. 1) of the counter base 8.

In this embodiment, the contact part 14 has the rotary body 141 and the rotation control part 142, as shown in FIG. The rotating body 141 is configured to be rotatable around a rotating shaft 143 along the Y-axis direction. The rotation restricting unit 142 restricts the direction of rotation of the rotating body 141 in one direction. The contact portion 14 is configured to contact the bag 7 on the outer peripheral surface 144 of the rotating body 141. In short, the contact portion 14 has a rotating body 141 that can rotate only in one direction, and contacts the bag 7 at the outer peripheral surface 144 of the rotating body 141.

Here, the rotating shaft 143 of the rotating body 141 is held by the roller support unit 145. The roller support unit 145 holds the rotating shaft 143 so as to be movable in the Z-axis direction. The roller support unit 145 is configured to be linearly movable in the X-axis direction by the drive unit 15. As will be described in detail later, when the roller support unit 145 moves straight in the X-axis direction, the rotary shaft 143 moves in the X-axis direction and the Z-axis direction.

The drive unit 15 is configured to reciprocate the contact unit 14 along the X-axis direction. As shown in FIG. 10, the drive unit 15 includes a motor 151, a belt 152, a pair of shafts 153, a pair of guide plates 154, and a pair of sliders 155. The motor 151 is mounted on the first frame 111. The belt 152 connects the motor 151 and the pair of shafts 153 such that each of the pair of shafts 153 rotates in conjunction with the motor 151. Each shaft 153 is a round bar that is long in the X-axis direction, and a screw is formed on the outer peripheral surface thereof. A pair of sliders 155 are fitted to the screws of the pair of shafts 153 so as to engage with each other.

The guide plate 154 is a part of the first frame 111 and is provided to restrict the movement of the roller support unit 145 to a straight movement along the X-axis direction. Specifically, the guide plate 154 is formed with a first groove 156 and a second groove 157 arranged in the Z-axis direction. The first groove 156 is a linear groove formed straight along the X-axis direction. Fixed shafts 146 protruding from the roller support unit 145 on both sides in the Y-axis direction are inserted into the first groove 156. The fixed shaft 146 penetrating the first groove 156 is fixed to the pair of sliders 155. The second groove 157 is divided into three sections of a first section 157a, a second section 157b, and a third section 157c in order from the right side in the X-axis direction (FIG. 5). The first section 157a and the third section 157c are linear grooves parallel to the X-axis direction. The second section 157b is a linear groove inclined with respect to the X-axis direction so that the end (right end) on the first section 157a side is located below the third section 157c (left end). is there. A movable shaft 147 that protrudes from the roller support unit 145 to both sides in the Y-axis direction is inserted into the second groove 157.

Here, the roller support unit 145 has an outer frame 148 and an inner body 149. The inner body 149 is configured to be able to move straight along the Z-axis direction relative to the outer frame 148. The fixed shaft 146 is fixed to the outer frame 148, and the movable shaft 147 is fixed to the inner body 149. The rotating shaft 143 of the rotating body 141 is held by the inner body 149. The inner body 149 causes an elastic force such as a spring to act downward on the rotating shaft 143. Therefore, in the roller support unit 145, when the movable shaft 147 moves in the Z-axis direction, the rotary shaft 143 moves in the Z-axis direction together with the movable shaft 147.

The motor 151 of the driving unit 15 rotates the pair of shafts 153 via the belt 152, so that the pair of sliders 155 moves straight along the X-axis direction. Accordingly, the roller support unit 145 moves straight in the X-axis direction. Further, when the roller support unit 145 moves straight in the X-axis direction, the movable shaft 147 moves in the second groove 157, so that the rotary shaft 143 moves in the Z-axis direction together with the movable shaft 147. That is, when the driving unit 15 moves the roller support unit 145 from the right end of the movable range to the left (negative direction in the X-axis direction), the rotating shaft 143 moves to the left and upward. More specifically, while the movable shaft 147 moves in the first section 157a or the third section 157c, the rotary shaft 143 moves in the negative direction (leftward) in the X-axis direction, and the movable shaft 147 moves in the second section. While moving in the section 157b, the rotating shaft 143 moves to the upper left.

According to the above configuration, the first block 11 can move the contact portion 14 straightly along the X-axis direction at least while the movable shaft 147 moves in the first section 157a. Furthermore, the drive unit 15 moves the contact unit 14 to the left (negative direction in the X-axis direction) according to the rotation direction of the motor 151, and moves the contact unit 14 to the right (positive direction in the X-axis direction). The state to be moved to can be switched. Therefore, the drive unit 15 can reciprocate the contact unit 14 along the X-axis direction.

Here, the rotation restricting portion 142 is composed of, for example, a one-way clutch bearing, and restricts the rotating direction of the rotating body 141 in one direction by restricting the rotating direction of the rotating shaft 143 relative to the roller support unit 145 in one direction. The rotation restricting portion 142 allows the rotation of the rotating body 141 when the contact portion 14 moves on the first sheet 7A toward the first opening end portion 71A (right side) along the X-axis direction. The rotation restricting portion 142 restricts (inhibits) the rotation of the rotating body 141 when the contact portion 14 moves on the first sheet 7A toward the first bottom portion 72A (leftward) along the X-axis direction. That is, in the example of FIG. 5, the rotating body 141 can rotate only in the clockwise direction and does not rotate in the counterclockwise direction.

Therefore, when the movable shaft 147 moves to the right in the first section 157a with the rotating body 141 in contact with the first sheet 7A, the first block 11 rotates while the rotating body 141 rotates. It rolls on the sheet 7A. On the other hand, when the movable shaft 147 moves to the left (negative direction in the X-axis direction) in the first section 157a with the rotating body 141 in contact with the first sheet 7A, the rotating body 141 does not rotate. Therefore, the rotating body 141 moves to the left while dragging the first sheet 7A. Hereinafter, the position of the contact portion 14 when the roller support unit 145 is located at the left end portion of the movable range is referred to as “initial position”, and the position of the contact portion 14 when the roller support unit 145 is located at the right end portion of the movable range. Is the “preparation position”.

An anti-slip structure that increases the coefficient of friction between the contact surface (outer peripheral surface 144) and the first sheet 7A is formed on the contact surface of the contact portion 14 with the first sheet 7A, that is, on the outer peripheral surface 144 of the rotating body 141. It may be. The anti-slip structure is realized, for example, by forming the outer peripheral surface 144 of the rotating body 141 from a material that acts as an anti-slip material such as urethane rubber. Furthermore, the anti-slip structure may be realized by a structure that acts as an anti-slip depending on the shape, such as a knurled structure.

The first block 11 further includes a leveling unit 16. The leveling portion 16 has a function of moving the first opening end portion 71A separated from the second opening end portion 71B by the driving portion 15 to the second opening end portion 71B side along the X-axis direction. Yes. That is, the leveling portion 16 is configured so that the first opening end portion 71A separated from the second opening end portion 71B is moved to the second opening end portion 71B side (right side) by the first sheet 7A being dragged by the contact portion 14. Operate to return. Thereby, when the first sheet 7A dragged by the contact portion 14 is in a state of being turned up, the upper surface of the first sheet 7A can be leveled flat by the leveling portion 16.

Specifically, the leveling unit 16 includes a motor 161, a belt 162, a shaft 163, a slider 164, and a leveling plate 165. The motor 161 is mounted on the first frame 111. The belt 162 connects the motor 161 and the shaft 163 so that the shaft 163 rotates in conjunction with the motor 161. The shaft 163 is a round bar that is long in the X-axis direction, and a screw is formed on the outer peripheral surface thereof. The slider 164 is fitted to the screw of the shaft 163 so as to be engaged. The leveling plate 165 is formed in a rectangular shape that is long in the Y-axis direction in plan view, and is fixed to the slider 164. The leveling plate 165 has a notch 166 for avoiding interference with the capturing unit 17 at a position corresponding to the capturing unit 17.

Therefore, the leveling unit 16 causes the motor 161 to rotate the shaft 163 via the belt 162, so that the slider 164 moves straight along the X-axis direction. Move straight in the axial direction. Hereinafter, the position of the leveling plate 165 when the leveling plate 165 is positioned at the left end of the movable range is referred to as a “standby position”, and the leveling plate 165 when the leveling plate 165 is positioned at the right end of the movable range. The position of is assumed to be the “leveling position”.

According to the first block 11 having the above-described configuration, the driving unit 15 moves the roller support unit 145 in the positive direction (rightward) in the X-axis direction at the start of opening the bag as shown in FIG. 6A. In addition, the contact portion 14 can be moved from the initial position to the preparation position. Here, at least while the movable shaft 147 moves to the right in the first section 157a, the contact portion 14 is exposed from the outlet 134 because the elastic force acts downward on the rotating shaft 143. It will be pressed against the first sheet 7A from above. While the movable shaft 147 moves to the right in the first section 157a, the rotating part 141 rolls on the first sheet 7A while rotating, so that the contact portion 14 is prepared without dragging the first sheet 7A. It can be moved to the position. In a state where the contact portion 14 is located at the preparation position, the contact portion 14 is pressed from above against the first sheet 7 A of the bag 7 located at the uppermost stage of the bag bundle 70.

As shown in FIG. 6B or FIG. 7A, the drive unit 15 moves the roller support unit 145 from the state where the contact unit 14 is located at the preparation position to the negative direction (left side) in the X-axis direction. The part 14 can be moved from the preparation position to the initial position. Here, at least while the movable shaft 147 moves to the left in the first section 157a, the contact portion 14 is exposed from the outlet 134 because the elastic force acts downward on the rotating shaft 143. It will be pressed against the first sheet 7A from above. While the movable shaft 147 moves to the left in the first section 157a, the rotating body 141 is locked without rotating, so the contact portion 14 moves to the left while dragging the first seat 7A. Moving. In this way, the drive unit 15 moves the contact portion 14 in a state pressed against the first sheet 7A of the bag 7 positioned at the uppermost stage of the bag bundle 70 from above, along the second direction (X-axis direction). The first bottom portion 72A is moved to the left side. As a result, in the bag 7 positioned at the uppermost stage of the bag bundle 70, the first sheet 7A is pulled to the left (negative direction in the X-axis direction), and only the first sheet 7A is separated by the cut line 77. Separated from section 76. Accordingly, the holding by the holding portion 19 is released only for the first opening end portion 71A, and the bag mouth 71 between the first opening end portion 71A and the second opening end portion 71B opens relatively small.

Here, the direction of pressing against the rotation shaft 143 against the first sheet 7 A, that is, the downwardly acting elastic force, regardless of the remaining number of bags 7 in the bag bundle 70, the bag 7 positioned at the uppermost stage of the bag bundle 70. The contact portion 14 is set to be pressed against the first sheet 7A with an appropriate force. Therefore, for example, in both the case where the remaining number of bags 7 in the bag bundle 70 is 100 and the case where it is one, only the first sheet 7A is present in the bag 7 positioned at the uppermost stage of the bag bundle 70. Is pulled at the contact portion 14.

Thereafter, as shown in FIG. 6C, when the contact portion 14 moves to the initial position, the contact portion 14 moves upward while the movable shaft 147 moves to the left in the second section 157b, and the first portion The contact portion 14 is separated from the sheet 7A. Here, the bag bundle 70 is stored in the bag storage case 13 in a state in which at least a part in the X-axis direction including the bag mouth 71 is supported by the protrusion 137 and lifted upward relative to other parts. Has been. Therefore, when the contact portion 14 moves to the left on the first sheet 7A and moves to the left of the step structure 136, that is, when the contact portion 14 is detached from the portion supported by the protruding table 137, the first sheet 7A. Therefore, the contact portion 14 is reliably separated.

When the contact portion 14 is separated from the first sheet 7A, the first sheet 7A is usually returned to the original position by the elasticity of the first sheet 7A, that is, the position where the first opening end 71A is opposed to the second opening end 71B. . At this time, the first opening end portion 71A rides on the insertion piece 21 of the second block 12 described later. Thereby, the situation where the insertion piece 21 is inserted between the second sheet 7B and the first opening end portion 71A is realized, and the first opening end portion 71A extends from the upper surface (predetermined surface 700) of the second sheet 7B. It is peeled off. That is, the contact portion 14 and the drive portion 15 of the first block 11 realize a pulling mechanism 22 (see FIG. 1) for pulling out the first opening end portion 71 A from below the insertion piece 21.

Even if the first sheet 7A does not return to the original position due to the elasticity of the first sheet 7A, that is, the position where the first opening end portion 71A is opposed to the second opening end portion 71B, the leveling portion 16 causes the first sheet 7A to return to the first position. The sheet 7A is forcibly returned to the original position. That is, as shown in FIG. 6D, the leveling portion 16 moves the leveling plate 165 in the positive direction (rightward) in the X-axis direction after the contact portion 14 is separated from the first sheet 7A. The leveling plate 165 is moved from the standby position to the leveling position. As a result, the first sheet 7A in the state of being turned up is lightly pressed by the leveling plate 165, so that the first opening end 71A is returned to the position facing the second opening end 71B, and the first sheet 7A is returned to the first opening 7A. The open end 71A rides on the insertion piece 21 of the second block 12.

As shown in FIGS. 5 and 11, the second block 12 has functions as the insertion piece 21, the capturing unit 17, and the movable device 5 in the basic configuration of the bag opening device 1 described above. That is, the second block 12 includes the insertion piece 21, the capturing unit 17, and the movable device 5. In other words, the second block 12 has a function excluding the pulling mechanism 22 in the peeling device 2 and a function as the movable device 5.

The second block 12 has a second frame 121. The second frame 121 is a frame member made of metal or resin, and is attached to the frame 80 (see FIG. 1) of the counter stand 8 so as to be linearly movable in the X-axis direction by the movable device 5.

FIG. 11 is a perspective view of the second block 12 of the bag opening device 1 according to the embodiment. In the present embodiment, the second block 12 has a pair of capturing portions 17 arranged in the Y-axis direction. Thereby, a pair of capture | acquisition part 17 capture | acquires 1st opening edge part 71A (one end part of a sheet | seat) of 1st sheet | seat 7A in the multiple places in a 3rd direction (Y-axis direction). Since the pair of capture units 17 have a common configuration, one capture unit 17 will be described below, and description of the other capture unit 17 may be omitted.

The capturing unit 17 includes a movable piece 171, a fixed piece 172, and a chuck driving unit 173.

The fixed piece 172 is a strip-like member protruding leftward from the second frame 121. The fixed piece 172 is configured integrally with the second frame 121 by extending a part of the second frame 121. Therefore, the fixed piece 172 is fixed to the second frame 121.

Here, the insertion piece 21 also serves as a part of the capturing unit 17. Specifically, the insertion piece 21 is also used as the movable piece 171 of the capturing unit 17. The movable piece 171 (insertion piece 21) is fixed to a support member 175 that is rotatably supported about the shaft 174 with respect to the second frame 121. The movable piece 171 is a strip-shaped member that protrudes leftward from the support member 175. In the present embodiment, the movable piece 171 is not a flat plate shape, but has a shape in which the left end portion is bent downward. Here, the movable piece 171 is disposed below the fixed piece 172 and at a position facing the fixed piece 172 in the Z-axis direction.

The movable piece 171 is configured to be movable between a closed position and an open position as the support member 175 rotates. The closed position is the position of the movable piece 171 when one end (first opening end 71A) of the sheet (first sheet 7A) is sandwiched between the fixed piece 172. The open position is a position of the movable piece 171 when the one end (first opening end 71A) of the sheet (first sheet 7A) between the fixed piece 172 is opened. That is, in the example of FIG. 5, when the support member 175 rotates clockwise, the movable piece 171 (insertion piece 21) moves from the open position to the closed position, and the support member 175 rotates counterclockwise. Thus, the movable piece 171 (insertion piece 21) moves from the closed position to the open position. That is, the capturing unit 17 moves the movable piece 171, and one end portion (first opening end) of the target sheet (first sheet 7 A) between the fixed piece 172 and the movable piece 171 (insertion piece 21). The first open end 71A is captured by sandwiching the portion 71A).

The chuck driving unit 173 has a function of driving the movable piece 171 (insertion piece 21). The chuck driving unit 173 rotates the support member 175 to move the movable piece 171 between the closed position and the open position. The chuck drive unit 173 includes, for example, a solenoid mounted on the second frame 121, and moves the movable piece 171 from the open position to the closed position when energized. The support member 175 is provided with a spring 176 for moving the movable piece 171 from the closed position to the open position when the chuck driving unit 173 is not energized. However, the spring 176 does not act on the support member 175 to such an extent that the movable piece 171 (insertion piece 21) in the open position is pressed downward, but the movable piece 171 is opened by its own weight. Will be maintained.

The fixed piece 172 has a chuck pin 177 on the surface (lower surface) facing the movable piece 171. The movable piece 171 has a chuck hole 178 at a position facing the chuck pin 177 in the Z-axis direction. Therefore, when the movable piece 171 is in the closed position, the chuck pin 177 is inserted into the chuck hole 178, and the first sheet 7A is sandwiched between the outer peripheral surface of the chuck pin 177 and the inner peripheral surface of the chuck hole 178. Become. Accordingly, it is possible to reduce the first opening end portion 71A from falling out of the capturing portion 17 in a state where the capturing portion 17 has captured the first opening end portion 71A.

In the present embodiment, the capturing unit 17 further includes a lock mechanism 18 that locks the movable piece 171 (insertion piece 21) in the closed position. The lock mechanism 18 includes a gear part 181, a claw part 182, a shaft 183, and a lock driving part 184. The gear portion 181 is formed on the upper surface of the support member 175. The claw part 182 constitutes a ratchet mechanism together with the gear part 181, and is hooked on the gear part 181 to restrict the rotation direction of the support member 175 in one direction. The shaft 183 is a round bar that is long in the Y-axis direction. The claw portion 182 is fixed to the shaft 183, and moves between a “lock position” that contacts the gear portion 181 and an “unlock position” that is separated from the gear portion 181 as the shaft 183 rotates. Is possible. That is, in the state where the claw portion 182 is in the locked position, in the example of FIG. 5, the support member 175 can rotate only counterclockwise and does not rotate clockwise.

The lock driving unit 184 has a function of driving the claw unit 182. The lock driving unit 184 moves the claw portion 182 between the locked position and the unlocked position by rotating the shaft 183. For example, the lock driving unit 184 includes a solenoid mounted on the second frame 121, and moves the claw unit 182 from the locked position to the unlocked position when energized.

The movable device 5 moves the capturing portion 17 in a state where the first opening end portion 71A is captured to the side opposite to the first bottom portion 72A (positive direction in the X-axis direction, rightward) along the X-axis direction. This is a device for opening the bag mouth 71. The movable device 5 allows the capturing unit 17 to move along the X-axis direction by moving the second frame 121 straight in the X-axis direction. Specifically, the movable device 5 includes a motor 51, a belt 52, a pair of shafts 53, and a pair of sliders 54. The motor 51 is mounted on the frame 80 (see FIG. 1) of the counter base 8. The belt 52 connects the motor 51 and the pair of shafts 53 so that each of the pair of shafts 53 rotates in conjunction with the motor 51. The shaft 53 is a round bar that is long in the X-axis direction, and a screw is formed on the outer peripheral surface thereof. The screws of the pair of shafts 53 are fitted so that the pair of sliders 54 are engaged with each other. A second frame 121 is fixed to the pair of sliders 54.

By rotating the pair of shafts 53 via the belt 52 by the motor 51 of the movable device 5, the pair of sliders 54 moves straight along the X-axis direction. Move straight in the direction. Here, the movable range of the second frame 121 is set so that the movable device 5 moves the second frame 121 linearly at least across both sides of the bagging device 3 in the X-axis direction. Hereinafter, the position of the capturing unit 17 when the second frame 121 is located at the left end of the movable range, that is, the left side of the bagging device 3, is referred to as a “supplementary position”, and the second frame 121 is the right end of the movable range, that is, The position of the capturing part 17 when it is located on the right side of the bagging device 3 is referred to as a “tensile position”.

According to the second block 12 having the above-described configuration, the capturing unit 17 moves the movable piece 171 from the open position to the closed position in a state where the capturing unit 17 is in the capturing position, thereby the target sheet (first sheet 7A). One end (first opening end 71A) can be captured. More specifically, when the opening of the bag is started, as shown in FIG. 6A, first, the movable device 5 moves the capturing unit 17 from the tensile position to the semi-capturing position. At this time, the movable piece 171 is located at the closed position. The quasi-capturing position is a position that is set above the first opening end 71A and slightly in front of the capturing position (slightly to the right). The movable piece 171 moves from the closed position to the open position by the lock driving section 184 moving the claw section 182 to the unlock position in the state where the capture section 17 is in the semi-capture position. At this time, the movable piece 171 (insertion piece 21) comes into contact with the first sheet 7A of the bag 7 located at the uppermost stage of the bag bundle 70 from above mainly due to its own weight. That is, the movable piece 171 (insertion piece 21) has a predetermined surface in the Z-axis direction with respect to one end portion (first opening end portion 71A) of the sheet (first sheet 7A) to be peeled by the peeling device 2. 700 (the upper surface of the second sheet 7B) is disposed at a position opposite to that of the second sheet 7B.

In this state, the first block 11 moves the contact portion 14 from the preparation position to the initial position as described above, so that the holding by the holding portion 19 is released only for the first opening end portion 71A. The bag mouth 71 between the portion 71A and the second opening end portion 71B opens small. When the contact portion 14 is separated from the first sheet 7A, the first sheet 7A usually returns to the position where the first opening end 71A is opposed to the second opening end 71B, so the first opening end 71A is an insertion piece. Get on 21. In other words, the pulling mechanism 22 (the contact portion 14 and the driving portion 15) pulls the first opening end portion 71A from the space between the upper surface of the second sheet 7B and the insertion piece 21 along the X-axis direction. In the axial direction, the insertion piece 21 is moved to the opposite side (upward) from the second sheet 7B. Thereby, the situation where the insertion piece 21 is inserted between the second sheet 7B and the first opening end portion 71A is realized, and the first opening end portion 71A extends from the upper surface (predetermined surface 700) of the second sheet 7B. It is peeled off.

As shown in FIG. 6C, the movable device 5 is after the contact portion 14 is separated from the first sheet 7A and before the leveling portion 16 moves the leveling plate 165 from the standby position to the leveling position. The capturing unit 17 is moved from the semi-capturing position to the capturing position. Thereby, the movable piece 171 (insertion piece 21) is further inserted into the gap between the second sheet 7B and the first opening end portion 71A. Then, after the leveling plate 165 moves to the leveling position, the chuck driving unit 173 moves the movable piece 171 (insertion piece 21) to the closed position as shown in FIG. 6E or 7B. As a result, one end portion (first opening end portion 71A) of the target sheet (first sheet 7A) is sandwiched between the fixed piece 172 and the movable piece 171 (insertion piece 21). The portion 17 captures (chucks) the first opening end portion 71A. In the present embodiment, since a plurality (a pair) of capture units 17 are provided in the Y-axis direction, the first opening end portion 71A is captured at a plurality of locations in the Y-axis direction.

In a state where the capture unit 17 captures the first opening end 71A, the movable device 5 moves the capture unit 17 that has captured the first opening end 71A to the capture position (packing device) as shown in FIG. 7C. 3) from the left side to the tension position (right side of the bagging device 3). At this time, since the second opening end portion 71B is held by the holding portion 19, the second opening end portion 71B is positioned on the left side of the bagging device 3, and the first opening end portion 71A is the bagging device. 3 on the right side. Accordingly, the bag 7 located at the uppermost stage of the bag bundle 70 is taken out from the bag storage case 13 and the bag opening 71 is opened relatively large so as to cover the bag packing device 3.

By the way, in the bag opening device 1 according to the present embodiment, the bag 7 having a pair of side surface portions 78 (see FIG. 4) that connects the first sheet 7A and the second sheet 7B at both ends in the Y-axis direction is a bag. Used as an opening target. In this type of bag 7, the pair of side surface portions 78 constitute a “town” provided to secure the width of the bag 7 in a state where the product 91 is accommodated. In the bag 7, a pair of side surface portions 78 are inserted between the first sheet 7A and the second sheet 7B in a state where the first sheet 7A and the second sheet 7B are stacked in the Z-axis direction. That is, for example, in a state where the bag 7 is stored in the bag storage case 13, that is, in a folded state, the pair of side surfaces 78 are sandwiched between the first sheet 7 A and the second sheet 7 B. Become.

In the bag opening device 1 according to the present embodiment, when the bag 7 having the pair of side surfaces 78 is to be opened as described above, the contact portion 14 is a pair of side surfaces in the Y-axis direction of the first sheet 7A. It is comprised so that a non-overlap part (part other than the side part 78) with the part 78 may be contacted. Specifically, as shown in FIG. 4, the contact portion 14 is in contact with only the central portion in the Y-axis direction on the upper surface of the first sheet 7 A, and becomes the overlapping portion with the pair of side surface portions 78. It is comprised so that it may not contact the both ends of a direction. Thereby, when the contact part 14 moves from a preparation position to an initial position, it becomes easy to avoid that a pair of side part 78 is dragged with the 1st sheet | seat 7A. In particular, as shown in FIG. 4, when the capturing unit 17 is disposed so as to capture an overlapping portion with the pair of side surface portions 78 in the Y-axis direction in the first sheet 7 A, the capturing unit 17 It becomes easy to avoid the pair of side surface portions 78 being captured together with the first sheet 7A.

Further, as described above, the contact portion 14 contacts only the central portion in the Y-axis direction on the upper surface of the first sheet 7A, thereby contacting the portion of the first sheet 7A aligned with the holding portion 19 in the X-axis direction. Will do. That is, in the present embodiment, since the holding portion 19 holds the separation portion 76 connected to the central portion of the bag mouth 71 in the Y-axis direction, the central portion in the Y-axis direction of the upper surface of the first sheet 7A. Is aligned with the holding portion 19 in the first sheet 7A in the X-axis direction. Accordingly, when the contact portion 14 moves from the preparation position to the initial position, the first sheet 7A is easily separated from the separation portion 76 by the cut line 77, and the first opening end portion 71A by the holding portion 19 is easily obtained. Is easily released. Here, the contact portion 14 is preferably in contact with the first sheet 7A in the vicinity of the holding portion 19 in the X-axis direction, specifically, at the first opening end portion 71A. Thereby, when the contact portion 14 moves from the preparation position to the initial position, a force is easily applied from the contact portion 14 to the holding portion 19, and the holding of the first opening end portion 71 A by the holding portion 19 is easily released. Become.

The bag opening device 1 according to the present embodiment may further include a set mechanism 6 (see FIG. 12). FIG. 12 is a perspective view of a main part of the bagging device 3 of the bagging system 10 according to the embodiment.

The set mechanism 6 covers the bag 7 that has been opened by the bag opening device 1 with respect to the bagging device 3 by covering the guide portion 32 from above with the bag mouth 71 of the bag 7 facing downward. This is a mechanism for setting (preparing) the bag 7. Here, the setting mechanism 6 sets the bag 7 by covering the bag 7 opened by the bag opening device 1 with respect to the support portion 31 and the guide portion 32 from above.

In the present embodiment, the set mechanism 6 includes a preliminary opening part 61, a second elevating part 62, and a link 63. The second elevating part 62 moves the guide part 32 in the Z-axis direction relative to the frame 80 (see FIG. 1) of the counter base 8. That is, the guide part 32 is inserted from the bag mouth 71 of the bag 7 by raising the guide part 32 below the bag 7 in the state where the bag mouth 71 is opened at the preliminary opening part 61 by the second elevating part 62. Is done. The pre-opening portion 61 is disposed between the guide portion 32 and the bag mouth 71 of the bag 7 before the guide portion 32 is inserted into the bag mouth 71 of the bag 7 from below. spread. The preliminary opening portion 61 widens the bag opening 71 of the bag 7 so that at least the guide portion 32 can be inserted.

The second elevating part 62 has a second support column 621 and a second arm 622. The second column 621 is a column that is long in the vertical direction, and is fixed to the frame 80 of the counter table 8. The second arm 622 is movable along the longitudinal direction (vertical direction) of the second support column 621. One end portion of the second arm 622 is mechanically coupled to the side surface of the guide portion 32. The 2nd raising / lowering part 62 raises / lowers the guide part 32 by moving the 2nd arm 622 to an up-down direction (lifting / lowering). The second elevating unit 62 includes an electric motor (motor), and is realized by an appropriate mechanism that can move the second arm 622 straight up and down by a driving force generated by the electric motor, such as a pantograph type or a rack and pinion type. The

The preliminary opening 61 is composed of a plurality of (here, four) flaps 611. The plurality of flaps 611 are arranged separately on both sides in the Y-axis direction with respect to the guide portion 32. In the present embodiment, a pair of flaps 611 is located in front of the guide portion 32, and a pair of flaps 611 is also located behind the guide portion 32. Each of the plurality of flaps 611 is configured to be rotatable around a rotation axis 612 along the X-axis direction. The plurality of rotating shafts 612 are supported by a plurality of fixtures 64. The plurality of fixtures 64 are fixed to the frame 80 of the counter base 8. Each of the plurality of flaps 611 rotates and moves between a “standby position” (state shown in FIG. 12) along the horizontal direction and an “operation position” along the vertical direction.

The link 63 is a mechanism that opens and closes (rotates) the plurality of flaps 611 in conjunction with the second elevating unit 62. That is, when the second elevating part 62 raises the guide part 32, the plurality of flaps 611 are rotated via the link 63 so as to be flipped up from the standby position and moved to the operating position. At this time, the preliminary opening portion 61 widens the four corners (four corners in the XY plane) of the bag mouth 71 from the inside of the bag mouth 71 with a plurality of flaps 611 in the operating position. With the above configuration, the preliminary opening portion 61 operates to open the bag 7 from the inside of the bag mouth 71 with the plurality of flaps 611 as the guide portion 32 moves up. It is preferable that the outer peripheral shape (the inner peripheral shape of the bag mouth 71) formed by the plurality of flaps 611 in the operating position is similar to the outer peripheral shape of the guide portion 32. When the bag filling is completed and the guide portion 32 is lowered, the plurality of flaps 611 are moved to the standby position.

According to the above configuration, as shown in FIG. 7C, the set mechanism 6 is positioned below the bag 7 in a state where the bag opening device 1 holds the bag 7 so as to cover the bagging device 3. The bagging device 3 (guide portion 32) is moved upward (positive direction in the Z-axis direction) by the second lift 62. Details will be described in the section of “(2.4) Bagging device”. When the bag 7 is supplied to the bagging device 3 by the bag opening device 1, the guide unit 32 is raised by the second lifting / lowering unit 62. The first elevating part 33 of the bagging device 3 raises the support part 31. Thereby, when the bag 7 is supplied to the bagging device 3 by the bag opening device 1, both the support portion 31 and the guide portion 32 rise relative to the frame 80 of the counter base 8.

At this time, prior to the guide portion 32 being inserted into the bag mouth 71 of the bag 7 from below, the preliminary opening portion 61 widens the bag mouth 71 of the bag 7. The pre-opening portion 61 operates to widen the four corners (four corners in the XY plane) of the bag mouth 71 from the inside of the bag mouth 71, whereby the guide portion 32 is inserted into the bag mouth 71 of the bag 7. Ensure possible size. In this state, when the bagging device 3 (the support portion 31 and the guide portion 32) is raised to a predetermined position, as shown in FIG. 13A, the bag 7 with the bag mouth 71 facing downward is transferred to the bagging device 3. Can be covered from above. Then, as the guide part 32 is raised by the second elevating part 62, the second opening end part 71B is pulled upward, so that the holding of the second opening end part 71B by the holding part 19 is released. Further, during the ascent of the guide part 32 by the second elevating part 62, the lock driving part 184 moves the claw part 182 to the unlock position, so that the movable piece 171 is moved from the closed position to the open position, thereby being captured. The capture of the first opening end 71A by the portion 17 is also released. Thereby, the bag opening device 1 completes the supply of the bag 7 to the bagging device 3.

(2.4) Bagging Device Next, the bagging device 3 that is a component of the bagging system 10 in the shopping support system 100 will be described in more detail with reference to FIGS. 4 to 6E.

The bagging device 3 according to the present embodiment includes a support portion 31, a guide portion 32, and a first elevating portion 33 as shown in FIG.

The support part 31 is formed in a rectangular plate shape. The upper surface of the support portion 31 constitutes a placement surface 311 for placing the product 91 (article). Here, the mounting surface 311 has a rectangular shape with rounded corners.

The guide part 32 is formed in a cylindrical shape having at least an upper surface opened between the upper surface and the lower surface. In this embodiment, the guide part 32 is formed in the square cylinder shape which both the upper surface and the lower surface opened. The opening surface of the guide portion 32 is formed to be slightly larger than the placement surface 311, and the guide portion 32 is disposed around the support portion 31 along the outer peripheral edge of the placement surface 311. Here, the shape of the inner peripheral edge of the upper end surface of the guide portion 32 and the shape of the outer peripheral edge of the placement surface 311 are similar.

The first elevating part 33 changes the relative positional relationship between the support part 31 and the guide part 32 from the first state to the second state. Here, the state in which the support portion 31 is located at the upper end portion of the guide portion 32 is referred to as a first state. When the relative positional relationship between the support portion 31 and the guide portion 32 is in the first state, the upper surface (mounting surface 311) of the support portion 31 and the upper end surface of the guide portion 32 are substantially flush with each other. Therefore, in the first state, the support portion 31 is disposed so as to close the opening on the upper surface side of the guide portion 32. The second state is a state in which the relative position of the support portion 31 with respect to the guide portion 32 is lower than the first state.

In other words, the support portion 31 moves relative to the guide portion 32 in a space surrounded by the guide portion 32. In the present embodiment, the first elevating unit 33 moves only the support unit 31 out of the support unit 31 and the guide unit 32 downward, thereby determining the relative positional relationship between the support unit 31 and the guide unit 32. The state is changed from the first state to the second state. That is, the support part 31 is configured to move in the vertical direction by the first elevating part 33 in the cylindrical guide part 32 fixed at a fixed position.

More specifically, the first elevating part 33 has a first support column 331 and a first arm 332. The first support column 331 is a support column that is long in the vertical direction, and is fixed to the frame 80 of the counter base 8. The first arm 332 is movable along the longitudinal direction (vertical direction) of the first support column 331. The first arm 332 is inserted into the guide portion 32 through a slit formed in the side surface of the guide portion 32, and one end portion of the first arm 332 is mechanically connected to the lower surface of the support portion 31 inside the guide portion 32. Are combined. The 1st raising / lowering part 33 raises / lowers the support part 31 by moving the 1st arm 332 to an up-down direction (lifting / lowering). The first elevating unit 33 includes an electric motor (motor), and is realized by an appropriate mechanism such as a pantograph type or a rack and pinion type that can move the first arm 332 straight up and down by a driving force generated by the electric motor. The

Hereinafter, the operation of the bagging device 3 will be described with reference to FIGS. 13A to 14B. FIG. 13A to FIG. 13C are explanatory diagrams of the operation at the time of bagging of the bagging device 3 according to the embodiment. 14A and 14B are explanatory diagrams of the operation at the time of discharging of the bagging device 3 according to the embodiment. 13A to 14B schematically show the operation of the bag filling device 3, and the illustration of the bag opening device 1, the first elevating part 33, and the like are omitted as appropriate.

13A to 13C show a process in which the product 91 is accommodated in the bag 7 when the relative positional relationship between the support portion 31 and the guide portion 32 changes from the first state to the second state. In the figure, a plurality of products 91 such as a plastic bottle beverage, a boxed confectionery, and a can juice are illustrated, but one product 91 may be provided. Further, here, as an example, the shopping basket 92 is removed from the bagging device 3 in the process of FIG. 13B, but the timing at which the shopping basket 92 is removed may be the process of FIG. 13C, or It may be after that.

First, when the relative positional relationship between the support portion 31 and the guide portion 32 is in the first state, as shown in FIG. 13A, the bag 7 with the bag mouth 71 facing downward is put on the support portion 31 and the guide portion 32. The bottom portion 72 of the bag 7 is supported by the placement surface 311. The bagging apparatus 3 sets the state shown in FIG. 13A to the standby state, and waits in the standby state until the shopping basket 92 containing the product 91 is placed in the bagging space (in the recess 82) on the placement surface 311. . In the present embodiment, when the shopping basket 92 is placed in the bagging space (in the recess 82), first, the shutter 821 constituting the bottom surface of the recess 82 is opened. Then, the product 91 in the shopping basket 92 is discharged onto the placement surface 311 of the bagging device 3 by opening the bottom of the shopping basket 92. As a result, the product 91 is placed on the placement surface 311 through the bag 7.

At this time, the bottom portion 72 is held on the placement surface 311 by the holding force of the holding mechanism in addition to the weight of the product 91. The holding mechanism is a mechanism that holds the bottom portion 72 of the bag 7 on the placement surface 311, and is realized by, for example, a configuration that holds the bottom portion 72 by pinching the bottom portion 72 of the bag 7. Here, “holding” means that the mounting surface 311 keeps supporting the bottom 72. That is, the state where the bottom portion 72 is in contact with the placement surface 311 and is supported from below by the placement surface 311 is maintained by the holding mechanism. The bagging device 3 holds the bottom 72 of the bag 7 on the mounting surface 311 by the holding mechanism while at least the relative positional relationship between the support portion 31 and the guide portion 32 changes from the first state to the second state. Keep doing.

From this state (first state), the support part 31 moves relatively downward with respect to the guide part 32 in the first elevating part 33, so that the bag 7 is guided to the guide part 32 as shown in FIG. 13B. Gradually pulled inside. At this time, the side peripheral portion 73 (the first sheet 7A, the second sheet 7B, and the pair of side surface portions 78) of the bag 7 that is continuous with the bottom portion 72 of the bag 7 is squeezed by the upper end surface of the guide portion 32. Then, it is drawn inside the guide portion 32. Therefore, the side peripheral portion 73 of the bag 7 is raised upward from the outer peripheral edge of the bottom portion 72 by the guide portion 32 around the support portion 31.

And when the relative positional relationship of the support part 31 and the guide part 32 will be in a 2nd state, as shown to FIG. 13C, in the space enclosed by the guide part 32, the bag 7 turned over from the state of FIG. 13A. The product 91 is accommodated in the bag 7. At this time, the side peripheral portion 73 rises along the inner peripheral surface of the guide portion 32. Here, in the second state, the bagging device 3 is configured such that the height difference from the placement surface 311 to the upper end surface of the guide portion 32 is equal to or greater than the total length of the bag 7 in the vertical direction. The “total length of the bag 7 in the vertical direction” here is the total length including the pair of handles 74 of the bag 7, that is, the dimension from the bottom 72 of the bag 7 to the tip of the handle 74. As a result, the bag 7 fits in the space surrounded by the guide portion 32 up to the tip of the handle 74. Therefore, the bag 7 is in a state of standing up including not only the side peripheral portion 73 but also the handle 74.

Next, the bagging device 3 drives the support part 31 by the first lifting part 33 and changes the relative positional relationship between the support part 31 and the guide part 32 from the second state to the first state. Thus, the bag 7 is discharged from the space surrounded by the guide portion 32.

That is, as shown in FIG. 14A, the bag 7 on the placement surface 311 protrudes upward from the opening on the upper surface side of the guide portion 32 as the support portion 31 moves upward. Furthermore, as the support portion 31 moves upward, the bag 7 is completely discharged from the space surrounded by the guide portion 32 as shown in FIG. 14B. At this time, the bag 7 maintains an independent posture including the handle 74. Moreover, since the bag 7 is turned over from the state of FIG. 13A supplied by the bag opening device 1 and accommodates the product 91, when the characters are printed on the bag 7, the reversely printed bag 7 is used. It is preferable.

By the operation as described above, the bagging device 3 stores the product 91 placed in the bagging space on the placement surface 311 in the bag 7 and raises the handle 74 of the bag 7 in the state where the product 91 is raised. Can be delivered to the customer. When the product 91 disappears from the placement surface 311, the bagging device 3 newly sets the bag 7 and stands by in a standby state.

(3) Modification The above embodiment is only one of various embodiments of the present invention. The above embodiment can be variously modified according to the design or the like as long as the object of the present invention can be achieved. The drawings shown in the above embodiments are merely conceptual diagrams for explaining an example of the bag filling system 10 (bag opening device 1 and bag filling device 3). The actual bag filling system 10 is the shape of each part. The size, the positional relationship, and the like may differ as appropriate.

Hereinafter, modifications of the above embodiment will be listed.

The peeling device 2 is not limited to opening a bag, and may be used for simple sheet peeling. That is, the peeling device 2 having the insertion piece 21 and the pulling mechanism 22 is not limited to the configuration used as a part of the bag opening device 1, and the sheet disposed in the first direction with respect to the predetermined surface 700 is predetermined. As a device for peeling from the surface 700, it may be used alone. Here, the insertion piece 21 is disposed at a position opposite to the predetermined surface 700 in the first direction with respect to one end portion on the one side in the second direction orthogonal to the first direction of the sheet. The drawing mechanism 22 pulls out one end portion of the sheet along the second direction from between the predetermined surface 700 and the insertion piece 21, and the one end portion of the sheet is predetermined with respect to the insertion piece 21 in the first direction. Move to a position opposite to the surface 700. In short, according to the peeling device 2 having such a configuration, the function of peeling the sheet arranged in the first direction with respect to the predetermined surface 700 from the predetermined surface 700 can be realized. May not be used with the movable device 5. The peeling apparatus 2 can be used, for example, for turning pages of a book.

Further, the bag opening device 1 is not limited to the configuration having such a peeling device 2 and the movable device 5, but may have a configuration having at least a holding portion 19, a contact portion 14, and a driving portion 15. The holding unit 19 holds the first opening end 71A and the second opening end 71B. The contact part 14 contacts the bag 7 from the first sheet 7A side in the first direction. The drive unit 15 moves the contact unit 14 toward the first bottom 72A along the second direction, thereby releasing the holding of the first opening end 71A by the holding unit 19 and the first opening end 71A. Is separated from the second opening end 71B. According to such a configuration, the bag opening device 1 can realize the bag opening related to the first-stage processing in the basic configuration described above.

Alternatively, the bag opening device 1 is not limited to the configuration including the holding unit 19, the contact unit 14, and the driving unit 15, but may be configured to include at least the peeling device 2 and the movable device 5. The movable device 5 moves the capturing unit 17 in a state where one end of the sheet is captured. The movable device 5 moves the capturing portion 17 in a state where the first opening end portion 71A of the first sheet 7A, which is one end portion of the sheet, is captured, to the opposite side to the first bottom portion 72A along the second direction. The bag mouth 71 is configured to open. According to such a configuration, the bag opening device 1 can realize the bag opening related to the second stage of the basic configuration described above.

Moreover, the bag opening device 1 is not limited to bagging but may be used for simple bag opening. That is, the bag opening device 1 is not limited to the configuration used with the bagging device 3 as a part of the bagging system 10.

The bag opening device 1 is not limited to the configuration in which the contact portion 14 is moved in the Z-axis direction (first direction), and may be configured to move the contact portion 14 only in the X-axis direction (second direction). . Furthermore, in the said embodiment, although the bag opening apparatus 1 showed the example which moves the contact part 14 in parallel with an X-axis direction (2nd direction), the moving direction of the contact part 14 may be along an X-axis direction. What is necessary is just to be inclined slightly with respect to the X-axis direction. Similarly, the moving direction of the capturing unit 17 is not limited to the direction parallel to the X-axis direction (second direction), but may be along the X-axis direction, and may be slightly inclined with respect to the X-axis direction. Good.

In addition, the bagging system 10 is capable of bagging not only the products 91 in the shopping basket 92 but also the products 91 that are not in the shopping basket 92. In this case, the customer can cause the bagging system 10 to pack the product 91 by placing the product 91 directly in the bagging space.

Further, the contact portion 14 is not limited to the configuration having the rotating body 141 and may be, for example, a rubber pad or the like. Even in this case, the bag opening device 1 can execute the bag opening by moving the contact portion 14 in the X-axis direction.

In addition, the use of the bagging system 10 is not limited to the convenience store, and the bagging system 10 may be installed in a store other than the convenience store. Further, for example, the bagging system 10 may be installed in a facility other than a store such as an office or a factory.

Moreover, the bagging system 10 should just be the structure which accommodates the goods 91 in the bag 7, and stores the goods 91 not only in the shopping bag as mentioned above but in the bags 7, such as an eco bag and a net bag (bag) It may be configured to be stuffed). The material of the shopping bag is not limited to polyethylene but may be made of polypropylene, for example.

Further, the shopping support system 100 may not be used in conjunction with the sales system 4 that can purchase the product 91 without requiring the operation of a store clerk as in the above-described embodiment. For example, like the so-called manned cash register It may be used in a situation where there is a store clerk at the checkout counter.

Further, for example, the fact that the bagging system 10 and the sales system 4 are integrated in one housing (counter stand 8) is not an essential configuration for the shopping support system 100, and there are a plurality of components of the shopping support system 100. It may be provided in a distributed manner in the casing.

Further, the bag opening device 1 may be configured to supply the bag filling device 3 after turning the bag 7 upside down. In this case, since the bag 7 is set in the bagging device 3 in an inverted state and further turned over to accommodate the product 91, the outer surface of the original bag 7 becomes the outer surface in the state in which the product 91 is accommodated. . Therefore, when characters or the like are printed on the bag 7, it is not necessary to use the reverse-printed bag 7.

The bag storage case 13 preferably has a sensor for counting the remaining number of bags 7. In this case, if the remaining number of bags 7 in the bag storage case 13 is equal to or less than a set value (for example, 5 sheets), a notification that prompts the store clerk to replenish the bags 7 may be performed by the notification unit. preferable.

In addition, the holding mechanism of the bagging device 3 is not limited to the configuration in which the bottom portion 72 is held by picking the bottom portion 72 of the bag 7 as in the above-described embodiment. For example, the bottom portion 72 is mounted by suction such as a vacuum suction pad. The structure hold | maintained on the mounting surface 311 may be sufficient.

The capturing unit 17 is not limited to the configuration in which the first opening end 71A is sandwiched between the fixed piece 172 and the movable piece 171. For example, the capturing unit 17 may be a vacuum suction pad or an adhesive pad having the upper surface of the insertion piece 21 as a suction surface. The bag 7 may be captured.

Further, the bag opening device 1 is not limited to the configuration having the pair of capturing portions 17 and may include only one capturing portion 17 or three or more capturing portions 17.

Further, when a plurality of types of bags 7 having different sizes or colors are used, different types of bags 7 may be stored for each bag storage case 13. In this case, it is preferable that the bag opening device 1 is configured to select one bag storage case 13 from the plurality of bag storage cases 13 as needed and to take out the bag 7 from the selected bag storage case 13.

Further, the drive system of each part in the bag opening device 1 is not limited to the belt drive system as described above, and may be configured as a chain drive system or a robot arm, for example. As for the power source, the motor and the solenoid are examples, and other power sources may be used.

Further, the “town” for ensuring the thickness of the bag 7 in the state in which the bag 7 is opened is not limited to the pair of side surface portions 78, and may be provided at the bottom portion 72 of the bag 7, for example. In this case, the first bottom portion 72A and the second bottom portion 72B are indirectly connected via a “town”.

The various modifications described above can be applied in appropriate combination.

(4) Summary As described above, in the peeling device (2) of the present disclosure, the sheet (first sheet 7A) arranged in the first direction with respect to the predetermined surface (700) is placed on the predetermined surface (700). It is the device which peels from. The peeling device (2) has an insertion piece (21) and a pulling mechanism (22). The insertion piece (21) is a predetermined surface (700) in the first direction with respect to one end portion (first opening end portion 71A) on one side in the second direction orthogonal to the first direction of the sheet. Arranged in the opposite position. The pulling mechanism (22) pulls out the one end of the sheet along the second direction from between the predetermined surface (700) and the insertion piece (21), and pulls the one end of the sheet in the first direction. The insertion piece (21) is moved to a position opposite to the predetermined surface (700).

According to this configuration, the peeling device (2) is configured to remove the one end portion of the sheet along the second direction by the pulling mechanism (22) from between the predetermined surface (700) and the insertion piece (21). By pulling out, the sheet can be peeled from the predetermined surface (700). Here, the pulling mechanism (22) pulls out the sheet between the predetermined surface (700) and the insertion piece (21) in the first direction along the second direction orthogonal to the first direction. Rotation of the sheet is unlikely to cause sheet entrainment as in the case of peeling. Therefore, the peeling apparatus (2) has an advantage that the success rate of the work of peeling the sheet from the predetermined surface (700) can be improved. Further, for example, a vacuum pump is unnecessary as compared with a peeling apparatus using vacuum suction, so that the structure can be simplified and noise can be reduced. However, the peeling apparatus (2) may have a vacuum pump.

The peeling device (2) of the present disclosure further includes a capturing unit (17) in the first aspect. The capturing portion (17) captures the one end portion of the sheet that has been moved to a position opposite to the predetermined surface (700) with respect to the insertion piece (21) in the first direction.

According to this configuration, since the one end portion of the sheet peeled from the predetermined surface (700) is captured by the capturing portion (17), the sheet can be further separated from the predetermined surface (700). is there. However, this configuration is not an essential configuration for the peeling device (2), and the capturing unit (17) can be omitted as appropriate.

In the peeling device (2) of the present disclosure, in the second aspect, the capturing unit (17) captures the one end portion of the sheet at a plurality of locations in the third direction orthogonal to both the first direction and the second direction. Is configured to do.

According to this configuration, the sheet can be peeled from the predetermined surface (700) over a relatively wide range in the third direction. However, this configuration is not an essential configuration for the peeling device (2), and the capturing unit (17) may be configured to capture the one end of the sheet only at one place in the third direction.

In the peeling device (2) of the present disclosure, in the second or third aspect, the insertion piece (21) also serves as at least a part of the capturing unit (17).

According to this structure, the said one end part of a sheet | seat is captured using the insertion piece (21) which will be inserted between the predetermined surface (700) and the said one end part of a sheet | seat by the drawing mechanism (22). Therefore, the configuration of the capturing unit (17) can be simplified. However, this structure is not an essential structure for the peeling device (2), and the capturing part (17) may be provided separately from the insertion piece (21).

In the peeling device (2) of the present disclosure, in the fourth aspect, the capturing unit (17) includes the movable piece (171) including the insertion piece (21), the fixed piece (172), and the chuck driving unit (173). And). The fixed piece (172) sandwiches the one end of the sheet between the fixed piece (172) and the movable piece (171). The chuck driving unit (173) moves the movable piece (171) along the first direction. The chuck driving unit (173) is between a closed position that sandwiches the one end of the sheet between the fixed piece (172) and an open position that opens the one end of the sheet between the fixed piece (172). Thus, the movable piece (171) is configured to move.

According to this configuration, the capturing unit (17) only needs to operate the movable piece (171) of the movable piece (171) including the insertion piece (21) and the fixed piece (172). In addition, the configuration of the chuck driving unit (173) can be simplified. However, this configuration is not an essential configuration for the peeling device (2), and the capturing unit (17) may be configured to drive the fixed piece (172).

In the peeling device (2) of the present disclosure, in the fifth aspect, the capturing unit (17) further includes a lock mechanism (18) that locks the movable piece (171) in the closed position.

According to this configuration, since the capturing unit (17) can lock the movable piece (171) in the closed position, even if the chuck driving unit (173) does not continuously generate the driving force, the capturing unit (17) The state where the one end of the sheet is captured can be maintained. However, this configuration is not essential for the peeling device (2), and the lock mechanism (18) can be omitted as appropriate.

A bag opening device (1) of the present disclosure includes a peeling device (2) according to any one of the above aspects, and a movable device (5) that moves a capturing unit (17) that captures the one end of the sheet. Have. The sheet is the first sheet (7A) of the bag (7) having the first sheet (7A) and the second sheet (7B). In the bag (7), the first sheet (7A) and the second sheet (7B) are stacked in the first direction, and the first bottom part (72A) and the first opening end part (71A) are the second bottom part. (72B) and the second opening end portion (71B) are opposed to each other in the first direction. The first bottom portion (72A) and the first opening end portion (71A) are both end portions in the second direction of the first sheet (7A). A 2nd bottom part (72B) and a 2nd opening edge part (71B) are both ends of a 2nd direction among 2nd sheets (7B). In the bag (7), the first bottom portion (72A) and the second bottom portion (72B) are connected to each other, and a bag mouth (71) is formed between the first opening end portion (71A) and the second opening end portion (71B). ) Is formed. The movable device (5) moves the capturing portion (17) in a state where the first opening end portion (71A) of the first sheet (7A), which is the one end portion of the sheet, is captured along the second direction to the first bottom portion ( 72A) is configured to open the bag mouth (71) by moving it to the opposite side.

According to this configuration, the bag opening device (1) opens the bag mouth (71) by pulling the first sheet (7A) which is the one end portion of the sheet peeled by the peeling device (2). realizable. Therefore, the bag opening device (1) has an advantage that the success rate of the work of peeling the sheet (first sheet 7A) from the predetermined surface (700) can be improved. As a result, the bag opening device (1) leads to an improvement in the success rate of the operation of opening the bag mouth (71).

The bagging system (10) of the present disclosure includes the bag opening device (1) according to the seventh aspect and the bagging device (3) that packs an article (product 91) in the bag (7). The bagging device (3) is disposed around the support portion (31) along the outer peripheral edge of the placement surface (311) and the support portion (31) on which the placement surface (311) on which the article is placed is formed. And a guide portion (32). The bag opening device (1) is configured such that the bag (7) with the bag mouth (71) opened with respect to the bag filling device (3) and the guide portion (32) with the bag mouth (71) facing downward. It is comprised so that it may cover from above.

According to this configuration, the bagging system (10) can realize bagging of articles using the bag (7) supplied from the bag opening device (1). Therefore, the bagging system (10) has an advantage that the success rate of the work of peeling the sheet (first sheet 7A) from the predetermined surface (700) can be improved. As a result, the bagging system (10) leads to an improvement in the success rate of the bagging operation.

DESCRIPTION OF SYMBOLS 1 Bag opening apparatus 2 Peeling apparatus 3 Bag filling apparatus 7 Bag 7A 1st sheet | seat (sheet)
7B 2nd sheet 10 Bagging system 17 Capture part 18 Lock mechanism 21 Insertion piece 22 Pull-out mechanism 31 Support part 32 Guide part 71 Bag mouth 71A 1st opening edge part 71B 2nd opening edge part 72A 1st bottom part 72B 2nd bottom part 91 Products (articles)
171 Movable piece 172 Fixed piece 173 Chuck drive unit 311 Placement surface 700 Predetermined surface

Claims

A peeling device for peeling a plurality of sheets arranged in a first direction,
The plurality of sheets are located at the top and have a first sheet having a first end;
A second sheet positioned below the first sheet and having a second end;
An insertion piece disposed above the first sheet and holding the first sheet;
Pulling out the first sheet from the insertion piece by sliding on the first sheet, and separating the first end of the first sheet from the second end of the second sheet Mechanism,
A peeling device comprising:
The peeling device according to claim 1, wherein the insertion piece is inserted between the first end portion and the second end portion separated by the drawing mechanism.
The peeling apparatus according to claim 1, further comprising a capturing unit that captures the first end portion separated from the second end portion.
The peeling device according to claim 3, wherein the capturing unit is configured to capture the first end portion of the first sheet at a plurality of locations in a direction intersecting the first direction.
The peeling device according to claim 3, wherein the insertion piece also serves as at least a part of the capturing part.
The capturing part is
A movable piece composed of the insertion piece;
A fixed piece sandwiching the first end together with the movable piece,
A chuck drive unit that moves the movable piece along the first direction;
Have
The peeling apparatus according to claim 5, wherein the chuck driving unit is configured to move the movable piece between a closed position that sandwiches the first end portion and an open position that opens the first end portion.
The peeling apparatus according to claim 6, wherein the capturing unit includes a lock mechanism 18 that locks the movable piece in the closed position.
A peeling apparatus according to any one of claims 2 to 7,
A movable device that moves the capturing part in a state of capturing the first end of the first sheet;
With
A bag is formed by the first sheet and the second sheet,
The bag is in a state where the first sheet and the second sheet are overlapped, and a first bottom portion of the first sheet is opposed to a second bottom portion of the second sheet, and the first sheet of the first sheet is An end portion is opposed to the second end portion of the second sheet;
The first bottom and the second bottom are connected;
A bag in which a bag mouth is formed between the first end and the second end,
The movable device is configured to open the bag mouth by moving the capturing portion in a state where the first end portion of the first sheet is captured along a second direction intersecting the first direction. Constructed bag opening device.
A bag opening device according to claim 8;
A bagging device for packing articles into the bag;
With
The bagging device has a support portion on which a placement surface on which the article is placed is formed, and a guide portion arranged around the support portion along the outer peripheral edge of the placement surface,
The bag opening device is configured such that the bag with the bag mouth open is covered with the guide portion from above with the bag mouth facing downward with respect to the bag filling device. system.