JP6856966B2 - Affixing device and packaging device with affixing device - Google Patents

Description

The present invention relates to a sticking device for sticking a sticking medium such as a label to an appropriate position of a sticking object, and a packaging device provided with the sticking device.

In recent years, in supermarkets and the like, groceries such as delicatessen are put in trays such as plastic and wrapped with a film for sale. A sticking device for sticking a label on which information such as a price is printed is known.
Then, in order to move the label to the sticking position by the sticking device, the label issued by the label printer is sucked and held by the suction portion, placed at the sticking position, and the sticking is released to stick. (Patent Document 1)

Japanese Patent Application Laid-Open No. 60-172633

In a general sticking device including the sticking device of the above-mentioned prior art document, the sticking and holding of the label by the suction part or the sticking of the sticking and holding label is electrically controlled like an electromagnetic valve or a sensor. It was done using the device to be used.

However, in order to control the suction part using an electrically controlled device, an electromagnetic valve or sensor may be provided in the vicinity of the suction part, or wiring may be provided between the solenoid valve or sensor and the control means. , The device and the control itself were complicated. In addition, the number of parts is large and maintenance is complicated, so it cannot be said to be economical.

In view of the above circumstances, the present invention provides a sticking device capable of performing suction holding and sticking control by a suction portion of the sticking device with a simple configuration without arranging an electric means in the vicinity of the suction portion. With the goal.

In order to achieve the above object, the present invention forms a suction portion that sucks the sticking medium by a negative pressure state, forms the negative pressure state, releases a vacuum path having a predetermined diameter width, and releases the pressure in the suction portion. When the sticking medium adsorbed on the suction portion comes into contact with the sticking object, the release valve rotates toward the sticking object , whereby the diameter width of the vacuum path is widened. It is characterized in that the negative pressure state is released by.

It is not necessary to provide a sensor, complicated wiring, or the like in the suction portion of the sticking device, and the device itself can be simplified to a simple configuration.

It is an overall view of the packaging device provided with the sticking device provided with the suction pad which concerns on embodiment of this invention. It is a side view of the packaging apparatus for demonstrating the packaging apparatus provided with the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a side view of the sticking apparatus for demonstrating the operation of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a top view of the sticking apparatus for demonstrating the operation of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a figure explaining the sticking part of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention, (a) is the side view of the sticking part in the label sticking state, (b) is the side view of the sticking part at the time of label sticking. Is. It is a figure for demonstrating the adsorption pad which concerns on embodiment of this invention, (a) is a perspective view, (b) is a top view, (c) is a side view, (d) is a bottom view, (e) is a view. It is a cross-sectional view. It is a top view for demonstrating the sticking position control of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a figure of the pressure value table used for the exchange notification control of the sticking means which concerns on embodiment of this invention, and (a) to (c) are examples of the pressure value table in the state where some trouble occurred in the suction part. d) is a diagram of a pressure value table in which the appropriate pressure value is reset immediately after the suction portion is replaced. It is a top view for demonstrating the sticking direction control of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a figure for demonstrating the drive control of the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. It is a figure for demonstrating the static elimination means adopted for the adsorption pad which concerns on embodiment of this invention, (a) is the side view of the sticking part which includes static elimination means, (b) is the sticking part which includes a static elimination means. The plan view and (c) are side views for explaining the state of protecting the film wrapping the tray by the static elimination means. It is a figure for demonstrating the label issuing part of the sticking apparatus which concerns on embodiment of this invention, (a) is the perspective view of the label issuing part, (b) is the front view of the same. It is a figure for demonstrating the label issuing part of the sticking apparatus which concerns on embodiment of this invention, and is the exploded perspective view of the label issuing part.

A sticking device according to an embodiment of the present invention and a packaging device including the sticking device will be described with reference to the drawings.
-Structure of packaging equipment equipped with affixing equipment-
The sticking device according to the embodiment of the present invention is used in, for example, the film packaging device shown in FIG.
In the film wrapping device A according to the embodiment of the present invention, an object to be packaged (hereinafter referred to as "tray T") such as a plastic tray containing a product such as food is referred to as a stretch film or the like (hereinafter referred to as "film F"). ), And a sticking medium (hereinafter referred to as "label L") such as a label on which product information is printed is attached to the packaged object (attached object). ..

As shown in FIGS. 1 and 2, the film wrapping device A is arranged in front of the machine body a, and covers the product mounting portion b on which the operator places the tray T and the film F on the tray T. A film wrapping means c for wrapping, a transport conveyor d for transporting the tray T placed on the product placing portion b to the film wrapping means c, and a product discharging unit e for discharging the tray T packaged by the film F. A discharge means 4 for transporting the tray T to the product discharge unit e, and a sticking device B for attaching a label L to the upper surface of the tray T discharged to the product discharge unit e are provided, and an operator is provided in front of the machine a. An input display means h such as a touch panel for inputting information for controlling the film wrapping device A and monitoring the state of the film wrapping device A is arranged.

Then, in the film wrapping device A, the operator inputs information such as the tray T by the input display means h, and the tray T is placed on the product mounting portion b, so that the tray T is formed by the transport conveyor d. After being conveyed to the packaging means c and packaged by the film packaging means c, the label L is attached to the upper surface of the film F for packaging the tray T by the sticking device B while being discharged to the product discharging unit e by the discharging means 4. ..
The stretch film packaging apparatus shown in FIGS. 1 and 2 is provided with a product mounting portion b (including a measuring unit) on which an object to be packaged is placed in front of the machine body a, and is mounted on the product mounting portion b. An object (tray T) is conveyed by a conveyor d to an elevator (not shown) provided inside the machine body a.
A film wrapping means c (wrapping part) is provided above the elevator, and from a film roll arranging portion (not shown) on the side of the film wrapping means c (wrapping portion) and a film roll set in the arranging portion. A film holding means for holding the tip of the film F to be fed out is provided, and the film packing means c that holds and pulls out the film tip held by the film holding means and transfers it to the film wrapping means c (wrapping part). The clamping means provided in the (packaging portion) is arranged close to the tip of the film holding means.
Further, a cutter for cutting the film F sandwiched and pulled out by the clamping means to a predetermined length is arranged between the film holding means and the clamping means.
Further, above the clamp means provided in the film packaging means c (packaging portion), a left and right folding plate and a rear folding plate (not shown), and a discharging means 4 (discharging pusher) located above the rear folding plate are provided. It is arranged.
Therefore, the object to be packaged (tray T) placed on the elevator is pushed up against the film F stretched on the film packaging means c (packaging portion) by the ascent of the elevator, and the end of the film in a stretched state. After folding the part into the bottom of the object to be packaged (tray T) by the left and right folding plates and the rear folding plate, the packaged object (tray T) is put into the product discharging part e on the front side of the machine a by the discharging means 4 (discharging pusher). While pushing horizontally toward (heat seal portion), the front end portion of the film F is folded into the bottom portion of the object to be packaged by the front folding roller to complete the packaging by the film. Then, the label L issued by the arm portion 2 and the affixing portion 3 of the affixing device B is affixed to the upper surface of the product during the extrusion transfer of the packaged object by the discharging means 4 (discharging pusher). In the film wrapping device A of the present embodiment, the sticking device B adsorbing the label descends to the object to be attached below the sticking device to attach the label, but the attaching direction is left-right or left-right. It may be on the upper side, and the sticking position with respect to the sticking object may be not only the upper surface of the sticking object but also the side surface or the back surface.

-Structure of pasting device-
The configuration of the sticking device B used in the film wrapping device A will be described in detail.
(Overall composition)
As shown in FIGS. 1 to 4, the sticking device B according to the embodiment of the present invention is a main body 1 that is freely arranged to move left and right (arrow M1 in FIGS. 1 and 4) on the body a of the film wrapping device A. And the arm portion 2 freely supported by the main body portion 1 in the left-right direction (arrow M2 in FIGS. 3 and 4) and vertically moved with respect to the arm portion 2 (arrow M3 in FIG. 3) freely and rotated. (Arrow M4 in FIGS. 3 and 4) Discharge of a pusher or the like that moves the freely supported sticking portion 3 and the tray T packaged by the film F to the product discharging portion e at the sticking position (arrow M5 in FIG. 3). It is composed of the means 4, and is driven and controlled by the control means 50 described later based on the information input by the input display means h.

(Structure of the main body of the sticking device)
As shown in FIG. 3, the main body 1 of the sticking device B is a product with respect to the paper support shaft 11 that supports the paper roll R formed by winding the label L paper and the strip-shaped paper that is unwound from the paper roll R. It includes a printing means 12 for printing information and the like, and a cutter means 13 for cutting the paper printed by the printing means 12 to create a label L.
A label issuing port 13a (FIG. 1) for issuing a label is provided on the front surface of the main body 1, and the strip-shaped paper printed by the printing means 12 is held by standby in a state of being ejected from the label issuing port 13a. Then, after being sucked and held by the suction pad 33 constituting the sticking portion 3, it is cut by the cutter means 13 to form the label L.
In the present embodiment, the label L will be described using a linerless label, but the label L is not particularly limited to the linerless label, and a label with a mount can also be used.

At a position below the label issuing port 13a of the main body 1, a label mounting plate 142 (FIG. 14) for holding the strip-shaped paper on standby so as not to hang down is extended forward, and the main body 1 is provided. The standby holding of the label in 1 is ensured.
As described above, the main body 1 of the sticking device B is configured as a label issuing means and also as a label (sticking medium) holding means for holding the label to be stuck on standby.

Therefore, when the main body 1 moves in the left-right direction on the body a of the film wrapping device A, the label holding (standby) position is moved in the left-right direction, and the arm portion 2 and the arm portion 2 move to each other. The sticking portion 3 to be supported moves in the left-right direction as a whole.
The arm portion 2 is not limited to one that is rotatably supported by the main body portion 1 configured as a sticking medium holding means. For example, the arm portion 2 is separate from the main body portion 1. Those that are supported and move in the left-right direction independently, those in which the arm part 2 is supported separately from the main body 1 and move in the left-right direction in conjunction with the main body 1, and the arm part 2 is the main body 1. The arm portion 2 is supported by a separate body and does not move in the left-right direction, and may be able to cover the left-right movement range of the main body portion 1 by rotational movement.

(Structure of arm part)
Two upper and lower brackets 15a and 15b are provided in front of the main body 1, and the arm portion 2 is rotatably supported in the left-right direction with respect to the first rotating shaft 15 formed by the brackets 15a and 15b. There is.
The arm portion 2 reciprocates between the label suction position P1 and the label affixing position P2 around the first rotation shaft 15. Then, the second rotating shaft 25 is provided at a position at a predetermined distance from the first rotating shaft 15, specifically, at the tip position of the arm portion 2, and at the position of the second rotating shaft 25, the sticking rod 31 of the sticking portion 3 is provided. The sticking portion 3 can be rotated and moved up and down by the second rotation driving means 23 and the up and down driving means 22.

As shown in FIG. 3, the sticking rod 31 protrudes from the lower surface of the arm portion 2, and the sub-arm portion 32 is fixed to the lower end thereof. A suction pad 33 is provided on the lower surface of the sub-arm portion 32.
As can be seen from FIG. 4, in the present embodiment, the distance from the first rotating shaft 15 to the second rotating shaft 25 in the arm portion 2 is larger than the distance from the second rotating shaft 25 to the suction pad 33. Larger, that is, the arc (rotatable range) drawn by the arm portion 2 centered on the first rotating shaft 15 is larger than the arc (rotatable range) drawn by the sticking portion 3 centered on the second rotating shaft 25. The large circular motion of the arm portion 2 makes it possible to move the label L to the sticking position, and the small circular motion of the sticking portion 3 makes it possible to adjust the sticking angle of the label L.
The magnitude relationship between the arc drawn by the arm portion 2 and the arc drawn by the sticking portion 3 is not particularly limited to the above magnitude relation, and even if the arc has the same size, the arc drawn by the sticking portion 3 is larger than the arc drawn by the sticking portion 3. Also, the arc drawn by the arm portion 2 may be small.

(Structure of pasting part)
As shown in FIG. 5, in the sub-arm portion 32 of the sticking portion 3, the upper block 321 and the lower block 322 having a substantially rectangular shape in a plan view are connected by a shaft 323, and the lower block 322 is connected to the upper block 321. Is rotatably configured. The sticking rod 31 is fixed to one side of the upper surface of the upper block 321 and the suction pad 33 is fixed to the other side where the sticking rod 31 is not fixed to the lower surface of the lower block 322.
The lower block 322 is formed with an air passage 322a continuous with the suction path 33a of the suction pad 33, and the upper block 321 is an air passage 321a continuous with the vacuum path 6a from the pressure adjusting means 6 such as a vacuum pump. Is formed. The air passage 321a of the upper block 321 and the air passage 322a of the lower block 322 are connected to each other via a release valve 324 that is released as the lower block 322 rotates with respect to the upper block 321.

Therefore, when the label L is attached to the tray T packaged by the film F from the adsorption state shown in FIG. 5A in which the label is adsorbed and held, the adsorption pad 33 is pressed upward by the reaction force of the affixing operation. .. Here, since the suction pad 33 can be tilted (deformed) by being formed of a material having elasticity as a whole, as shown in FIG. 5 (b), the suction pad 33 is subjected to an upward pressing force. The 33 itself tilts (deforms) by the same amount as the rotation amount of the lower block 322, and rotates the lower block 322 about the shaft 323 while keeping the adsorbed label surface parallel. Then, the release valve 324 is released, the pressure in the suction path 33a of the suction pad 33 is released to the atmospheric pressure, the suction force for the label L is lost, and the label L is smoothed against the film F on the upper surface of the tray T. Can be attached to.

(Structure of adsorption pad)
The suction pad 33 of the sticking portion 3 is made of an elastic material such as synthetic rubber, has a substantially cylindrical shape as a whole as shown in FIG. 6, and has a main body portion 331 constituting the upper portion thereof. A conical suction part 332 that is continuous below the main body 331 and gradually spreads downward, and a conical suction part 332 that is continuous below the suction part 332 and spreads elastically at a spread angle larger than the conical spread angle of the suction part 332. It is composed of a skirt portion 333 having the above portion 333, and an annular rib 334 provided on the inner circumference of the skirt portion 333 below the suction portion 332 and projecting downward in an annular shape. The lower end of the rib is located about 0.5 mm above the lower end of the skirt portion 333.

The main body portion 331 is formed with a mounting portion 331a for fixing to the lower surface of the lower block 322 of the sub-arm portion 32 of the sticking portion 3 in the upper portion thereof, and the outer peripheral surface of the lower portion of the mounting portion 331a is thin. A buffer portion 331b composed of a plurality of annular groove portions that have been lightened is formed, and can be tilted with respect to an external force applied to the suction pad 33. The cushioning portion 331b composed of a plurality of annular groove portions is not limited to the one formed by lightening the outer peripheral surface, and may be formed by, for example, a bellows or the like. Furthermore, the number of annular grooves may be one.
In addition, if the suction pad 33 can be tilted and the suction surface at the time of label suction is kept horizontal, the configuration is not particularly specified, such as providing an indirect portion or the like on the main body portion 331.

The surface of the suction portion 332 is flat without forming a thin-walled portion, and has a stronger waist than the main body portion 331. Further, since it has a conical shape that gradually expands downward, the force for crushing the suction pad 33 generated by the negative pressure in the suction path 33a at the time of label suction is released slightly downward from the horizontal direction. Therefore, the crushing of the suction pad 33 at the time of suction is suppressed.
Since the skirt portion 333 spreads at a large spreading angle and has elasticity, it is deformed by elasticity at the time of sticking the label L and comes into contact with the surface of the label L on the surface, enabling stable sticking of the label L. At the same time, the annular rib 334 arranged on the inner circumference of the skirt portion 333 abuts on the surface of the label L to be sucked, the label L is not sucked more than necessary, and the label L is wrinkled or deformed. It is prevented from doing.

(Drive control of sticking device)
In the sticking device according to the embodiment of the present invention, each drive means is controlled by the control means 50 shown in FIG. 7.
The left-right direction driving means 16 is a driving means for adjusting the sticking position of the label L, and according to the command of the control means 50, the label L is input and set by the input display means h in the left-right direction. The position of the main body 1 in the left-right direction is changed.
Normally, since a predetermined number of packaging and pasting processes are performed under the same conditions, they are usually driven at the time of the first pasting process and then not normally driven until the conditions are changed.

The front-rear direction driving means 17 is a driving means for adjusting the sticking position of the label L, and is a discharge means 4 such as a pusher according to a setting of the label L sticking position in the front-rear direction by a command of the control means 50. Moves the tray T to the product discharge unit e. Normally, the tray T is moved in accordance with the lowering timing of the sticking portion 3 in order to lower the sticking portion 3 to the upper surface of the tray T and perform the label L sticking process while the tray T is moving to the product discharging portion e. By controlling the timing, the sticking position in the front-rear direction is adjusted.
Although it is disadvantageous for shortening the sticking time, the height may be uneven depending on the products to be stored in the tray T, and it may be difficult to stick the tray T at a fixed position while the tray T is moving. In such a case, it is possible to adjust the sticking position of the label L in the front-rear direction by adjusting the final moving position of the tray T by the discharging means 4 such as a pusher.

The first rotation driving means 21 is a driving means for rotating and reciprocating the arm portion 2 around the first rotation shaft 15 in order to attach the label at a position different from the issuing position of the label L. The arm portion 2 is driven by the first rotation driving means 21 to rotate and reciprocate between the label suction position P1 and the label sticking position P2. The rotation angle of the label suction position P1 to the label sticking position P2 is constant regardless of the sticking position with respect to the tray T, and the first rotation driving means 21 can be configured by a simple mechanism that repeats a constant rotation reciprocating operation.

By the first rotation driving means 21, the arm portion 2 is moved from the label suction position P1 during the sticking process, and the sticking portion 3 is separated from the label issuing position. The label L to be attached to can be issued. Further, by moving to the sticking position by rotary motion, it is not necessary to convert the rotary motion of the motor into linear motion, and stable movement is performed.

The vertical drive means 22 is a means for driving the sticking portion 3 up and down with respect to the arm portion 2, and performs an ascending operation and a lowering operation of the sticking portion 3 at the time of sucking and sticking the label.

The second rotation drive means 23 is a means for changing the direction in which the label is attached by rotationally driving the attachment portion 3 with respect to the arm portion 2 around the attachment rod 31, that is, the second rotation shaft 25.
Since the label L is moved by the rotational movement from the label suction position P1 to the label sticking position P2 by the arm portion 2, if the direction of the label L is not changed with respect to the arm portion 2, the arm portion 2 The label L attached by the rotational motion is rotated while changing its direction, and the end portion of the label L on the label issuing portion side interferes with the mechanism around the label issuing port 13a, and the adhesive surface of the label L sticks. There is a possibility that it will end up. Therefore, in the sticking device B of the present embodiment, by rotating the sticking portion 3 in accordance with the rotation of the arm portion 2, the label L moves to the sticking position while maintaining the orientation of the label L with respect to the machine body a when sucked. It is driven and controlled (pull-out control) so that it can be driven.
After moving the label L to the sticking position, the sticking direction of the label L can be freely changed depending on the angle at which the sticking portion 3 is rotated, and the label L can be moved to a desired position according to the size of the tray T or the like. It is possible to attach the label L.

(Return control of pasted part)
The pressure adjusting means 6 such as a vacuum pump is controlled in conjunction with each driving means, and in the vacuum path 6a in which the pressure adjusting means 6 and the suction pad 33 are continuous, a defect of the pressure adjusting means 6 or a suction pad is formed. A pressure sensor (pressure detecting means) 51 for detecting the pressure in the vacuum path is arranged in order to detect a pressure rise in the vacuum path 6a due to damage to the 33. The pressure in the vacuum path 6a detected by the pressure sensor 51 is transmitted to the control means 50.

Then, as shown in FIG. 5, when the suction pad 33 affixes the label L to the film F surface covering the tray T, the release valve 324 provided in the vacuum path 6a is released by the reaction force, and the air pressure in the vacuum path 6a is released. Changes from a state close to vacuum (negative pressure state) to an atmospheric pressure state.
By detecting the pressure change at that time with the pressure sensor 51, the sticking of the label L is detected.

When the pressure value detected by the pressure sensor 51 rises above a threshold value stored in advance, the control means 50 releases the inside of the vacuum path 6a from the vacuum (negative pressure) state to the atmospheric pressure state, that is, the label. It is determined that L is attached to the F surface of the film, and the vertical drive means 22 is controlled to change from the lowering operation to the ascending operation.

(Replacement time notification function for pasted parts)
Further, the sticking device of the present embodiment has a notification function for prompting the replacement of the suction part such as the suction pad (suction part) 33 using the pressure sensor 51. This makes it possible to perform replacement notification according to the actual state of the suction part such as the suction pad 33, which was not possible in the conventional notification control of the replacement time using the preset number of sticking times and usage time. In the following description, the “suction part such as suction pad” means all or a part of the components (including the vacuum pump and the pressure sensor) related to suction including the suction pad. )
The suction part such as the suction pad 33 of the sticking device of the present embodiment prepares for sucking the label L in a normal standby state in which the suction pad 33 is simply waiting during the packaging process in the packaging device. By repeating the preparation standby state, the label adsorption state in which the label L is adsorbed, and the label release state immediately after the adsorbed label L is affixed to the tray T, the affixing process is performed by the affixing device. ing.

In each of the above states, the pressure is adjusted inside the suction portion such as the suction pad 33 by the pressure adjusting means 6, and the label L can be sucked by the suction pad 33.
Specifically, in the normal standby state, the pressure adjusting means 6 does not operate, and the vacuum path 6a is opened to the atmosphere to become atmospheric pressure (pressure value 10), but in the ready standby state, the pressure is adjusted. The means 6 is driven, and the vacuum path 6a shifts to a slightly negative pressure state (pressure value 9) although it is open to the atmosphere. Then, in the label adsorption state, by adsorbing the label L while driving the pressure adjusting means 6, the inside of the vacuum path 6a suddenly shifts to the vacuum (negative pressure) state (pressure value 5), and then the label release state. Then, the inside of the vacuum path 6a is in a state (pressure value 7) in which the vacuum (negative pressure) state is released but the pressure is not changed to atmospheric pressure at once.
In the above description, the pressure value indicates the pressure in each state when the atmospheric pressure is set to "10" and the pressure in the vacuum state is set to "5".

As described above, it is preferable that the internal pressure of the suction portion such as the suction pad 33 becomes the above-mentioned appropriate pressure value in each state, but the suction pad 33 is formed of an elastic material such as synthetic rubber. Therefore, the vacuum state (pressure value 5) may not be maintained in the label adsorption state due to the skirt portion 333 or the like being torn.
Even if tearing does not occur, the skirt portion 333 and the like may wear due to the number of times of use, aged use, and the usage environment, and the rubber material may be deformed or hardened, resulting in a gradual vacuum (negative). It becomes difficult to create a pressure) state, and even if a vacuum state can be created temporarily, there may be a problem that the state cannot be maintained and the label during suction is dropped. Further, a defect may occur in the components other than the suction pad 33.
In order to notify such a defect, in the sticking device of the present embodiment, damage or wear of the suction part such as the suction pad 33 is detected based on the pressure value detected by the pressure sensor 51, and the device is replaced with the user. Is being notified.

The pressure value table 8 shown in FIG. 8A is used for the replacement notification control of the suction portion such as the suction pad 33 based on the detection value of the pressure sensor 51. The pressure value table includes a pressure adjusting means operation column 81 for setting the operating state of the pressure adjusting means 6 in each of the above states of the suction part such as the suction pad 33, and an appropriate pressure value set in association with the appropriate pressure value in each state. A notification value in which a threshold (notification value) as a reference for notifying the replacement time of the suction portion, which will be described later, is set in the column 82 and the detection pressure value column 83 in which the pressure value detected by the pressure sensor 51 is input. It has a column 84 and. The pressure value table 8 is stored in a memory such as a RAM in the control means 50, and can be appropriately rewritten by the user from the input display means h or the like by manual input.
When the control means 50 receives the pressure value in the suction part (vacuum path 6a) such as the suction pad 33 detected by the pressure sensor 51 in each of the above states, the control means 50 associates the received detected pressure value with each state of the suction part and in the memory. It is input to the detection pressure value column 83 of the pressure value table of. Then, by comparing the input detection pressure value with the appropriate pressure value in each state of the suction part such as the suction pad 33 as a threshold value, it is determined that each component of the suction part such as the suction pad 33 is damaged or worn. ..
For example, in the example of the pressure table 8 shown in FIG. 8A, only the detected pressure value in the label suction state detected by the pressure sensor 51 exceeds the appropriate pressure value, and some trouble such as damage to the suction pad 33 occurs. It can be judged that it has been done, and it is judged that it needs to be replaced. Then, the input display means h is controlled so as to notify the user to replace the suction pad 33. An example of notification is to display a display such as "The suction pad needs to be replaced. Please replace it." On the input display means h.
Further, in the example of the pressure table 8 shown in FIG. 8B, among the detected pressure values detected by the pressure sensor 51, in the preparation standby state, the label adsorption state, and the label release state in which the pressure adjusting means 6 is operating. It is determined that the pressure value exceeds the appropriate value, and it can be determined that some trouble has occurred in the pressure adjusting means 6, and it is determined that the pressure adjusting means 6 needs to be replaced. Then, the input display means h is controlled so as to notify the user to replace the pressure adjusting means 6.
An example of the notification is to display a display such as "It is time to replace the vacuum pump. Please replace the vacuum pump." On the input display means h.
Further, in the example of the pressure table 8 shown in FIG. 8C, since all the detected pressure values detected by the pressure sensor 51 exceed the appropriate pressure values, it is considered that some problem has occurred in the pressure sensor 51. It can be determined, and it is determined that the pressure sensor 51 needs to be replaced. Then, the input display means h is controlled so as to notify the user to replace the pressure adjusting means 6.
An example of the notification is to display a display such as "It is time to replace the pressure sensor. Please replace the pressure sensor." On the input display means h.
The criteria for determining the defective portion are not limited to the above criteria, and can be appropriately set by the user.

As described above, it is possible to notify the malfunction of the suction part such as the suction pad 33, but only when the above notification is used, the notification is given only when the suction part such as the suction pad 33 becomes unusable. May interfere with. If possible, for consumables such as the suction pad 33, it is preferable to notify the replacement of the suction portion before it becomes completely unusable and hinders its use.
Therefore, the sticking device of the present embodiment has a function of urging replacement of the suction pad 33, for example, although the suction pad 33 has not reached the unusable state when it is about to become unusable. The control means 50 is a guideline for detecting a defect of the suction pad 33 as a reference threshold value for notifying the replacement time in order to notify that the time when it becomes unusable is near, that is, it is the replacement time. "6", which is obtained by adding "+1" to the appropriate pressure value "5" in the label adsorption state, is set in the pressure value table as a notification value (pressure value 6) and stored in the memory. The pressure value table may be manually rewritten by the user, or the pressure value in the label adsorption state may be automatically set by "+1".
Then, the control means 50 compares the detected pressure value in the label adsorption state received from the pressure sensor 51 with the threshold value (notification value), and when the detected value exceeds the threshold value, the adsorption pad 33 becomes fatigued or the like. It is determined that it is time to replace the label, and the input display means h is notified that the suction portion needs to be replaced.
In that case, a notification such as "It is time to replace the suction pad. Please replace it." Is displayed on the input display means h.
As a result, it is possible to prompt the replacement of the suction pad 33 before the use of the packaging device is hindered, and the user can replace the suction pad 33 before it becomes unusable.
The above-mentioned replacement timing notification control can also be used for components other than the suction pad 33 by changing the threshold setting or the like.
In the above notification control, the control means 50 functions as a determination means for determining that replacement is necessary and a notification means for controlling so as to perform notification.

When the user replaces the suction part such as the suction pad 33 or the suction path 33a by the notification of the replacement time or the like, the pressure value detected by the pressure sensor 51 due to the imbalance of each component constituting the suction part. May make a difference. If the replacement notification control of the suction part such as the suction pad 33 is performed in such a state, the suction part such as the suction pad 33 can generate a sufficient vacuum state, and the detected pressure value is notified even though the label can be sucked. It is judged that it is time to replace the value (threshold) and is notified, or conversely, the pressure value does not exceed the reported value (threshold) and the replacement is not notified at an appropriate time even though it is already the replacement time. The situation arises.

For example, a test for detecting the pressure value in each state after replacement is performed, and the detection value of the pressure sensor in the normal standby state immediately after replacement is "11", and the detection value in the label adsorption state is "10". In a situation where the detection value in the label adsorption state is "6" and the detection value in the label release state is "8", the pressure sensor 51 after replacement is in the label adsorption state. When the pressure value "6" is detected, the detection pressure value is the same as the notification value (threshold) "6" even though the suction pad 33 can suck the label in a sufficient vacuum state. It is determined that it is time to replace the pad 33, and there is a possibility that the replacement time will be notified.
In order to prevent such a defect, the packaging device of the present embodiment is provided with a pressure value table resetting function.

Specifically, after replacing the suction part, the label suction and sticking test operations are performed several times, and the average value or the like is overwritten as the pressure value in each operating state, as shown in FIG. 8 (d). A pressure value table can be set. Based on the test result, the set pressure value of the label adsorption state is rewritten from "5" to "6", so that the threshold value (notification value) is set to "7" which is "+1", so that the pressure sensor Even when the detection value "6" is detected while the 51 is in the label adsorption state, erroneous control based on the old setting can be prevented.
In the above embodiment, the replacement notification of the suction unit is performed to the user via the input display means h, but the present invention is not limited to this, and the notification is not limited to this, and is not limited to this, but is not limited to this, and is not limited to the notification by voice or by an alarm device such as a buzzer. It is also possible to notify the maintenance person (serviceman) on the maintenance screen, the error list screen, or the like.

(Home return operation)
In the affixing device, it is necessary to quickly return to the origin position after affixing the label in addition to the affixing operation of the label in order to shorten the time of the entire affixing process. It is necessary to shorten the time required for recovery, but if the ascending speed is high, a large load is applied at the time of stopping, and there is a possibility that an error may occur in stopping at the correct origin height. The error of the origin position, that is, the initial position with respect to the next suction operation is a big problem leading to a suction error and a sticking omission in the label suction operation using the suction pad 33.

In the sticking device according to the embodiment of the present invention, deceleration control is adopted in the return operation for returning the sticking portion 3 to the origin, enabling quick and accurate return to the origin.
Specifically, as shown in FIG. 7, the arm portion 2 has an origin stop sensor 52 that detects that the upper end 31a of the sticking rod 31 of the sticking portion 3 is in the origin stop position, and an upper end 31a of the sticking rod 31. It is provided with a deceleration start sensor 53 that detects that the vehicle is in a deceleration start position that is a predetermined distance below the origin stop position.
Then, the return operation of the sticking portion 3 from the sticking position is performed at a large ascending speed, and the timing at which the deceleration start sensor 53 detects that the upper end of the sticking rod 31 has reached the deceleration start position a predetermined distance below the origin stop position. The deceleration control of the vertical drive means 22 is performed to reduce the stop load at the origin stop position. After that, when the origin stop sensor 52 detects that the upper end of the sticking rod 31 has reached the origin stop position, the drive of the vertical drive means 22 is stopped, so that the correct return to the origin position can be performed.

(Adjustment of label sticking position)
With reference to FIG. 9, an operation of adjusting the sticking position of the label to be stuck by the sticking device B in the front-back and left-right directions will be described.

FIG. 9A shows a state in which the label L printed with “A” is attached to the center of the tray T without changing the direction of “A” (hereinafter, referred to as “reference affixed state”). The main body 1 is arranged on the left side of the machine a by the left-right driving means 16 so that the arm 2 is located at a substantially central position in the left-right direction, which is the position where the label L is attached. Then, the label L is attached to the center position of the tray T by controlling the front-rear movement timing of the tray T by the front-rear direction drive means 17 according to the lowering timing of the attachment portion 3 by the vertical drive means 22.
Since the orientation of the label L at the time of sticking is set to be the same as the orientation in which the label is issued, the second rotation is performed in accordance with the counterclockwise rotation operation (m1) of the arm portion 2 by the first rotation driving means 21. By rotating (m2) the sticking portion 3 clockwise by the same angle by the driving means 23, the orientation of the label L is controlled to be always the same.

FIG. 9B shows a state in which the label L is attached to the right side position of the tray T (that is, the attachment position is changed in the left-right direction), and the attachment position of the label L is the reference attachment state of the label. It is set to a position that is separated from the holding position in the left-right direction. In such a case, the left-right position of the main body 1 is changed (m3) by the left-right direction driving means 16 so that the label holding (issuing) position itself is brought closer to the label sticking position.
Therefore, the movement from the label holding (issuing) position to the sticking position in the label L sticking process is always a constant rotation operation (m1) of the arm portion 2 by the first rotation driving means regardless of the label L sticking position. It can be performed only by the label, and the sticking process time does not change depending on the label sticking position, and the sticking process can always be performed efficiently.

FIG. 9C shows a state in which the label L is attached to the front position of the tray T (that is, the attachment position is changed in the front-rear direction).
When the sticking position of the label L is located behind the tray T in the reference sticking state, the front and back of the sticking position is adjusted by controlling the front-back movement timing of the tray T by the front-back direction driving means 17 ( m4). Specifically, when it is desired to attach the label L to the front, the forward movement timing for the lowering operation of the attaching portion 3 by the vertical drive means 22 is delayed from the timing in the reference affixed state, and the label L is moved backward. When it is desired to be attached to the label, the forward movement timing for the lowering operation of the attachment portion 3 by the vertical drive means 22 is made earlier than the timing in the reference attachment state.

The sticking position of the label L in the front-rear direction can also be adjusted by controlling the stop position of the tray.
As described above, the attachment positions in the front-rear direction and the left-right direction with respect to the tray T can be adjusted by the drive control of the front-rear direction drive means 17 and the left-right direction drive means 16.

(Adjusting the orientation of the label)
The operation of adjusting the sticking direction of the label L with respect to the tray T by the sticking device B will be described with reference to FIG.

FIG. 10A shows a case where the label L is attached in a direction 180 degrees different from the direction in which the label L is issued with respect to the center of the tray T in the front-back and left-right directions. Even when the label L is changed by 180 degrees and attached, the orientation of the label L does not change due to the rotational movement during the rotation (m1) from the label suction position P1 to the label attachment position P2 of the arm portion 2. The sticking portion 3 is rotated (m2) to control the pulling out. After the arm portion 2 reaches the label sticking position P2, the orientation of the label L is adjusted by rotating the sticking portion 3 180 degrees (m5) around the second rotation shaft 25 by the second rotation driving means 23. There is.
At this time, since the protruding direction of the sticking portion 3 with respect to the second rotating shaft 25 is opposite in the front-rear direction, the sticking position of the label L in the front-rear direction is different from that in the reference sticking state.
In order to respond to the position change, the drive control of the tray T is performed by the front-rear direction driving means 24, and the front-rear position adjustment (m6) of the sticking position is performed.

FIG. 10B shows a case where the label L is attached to the right side portion of the tray T in a direction different from the orientation in which the label L is issued by 180 degrees. Similar to the case of FIG. 10A, the sticking portion 3 rotates (m2) the sticking portion 3 during the rotation (m1) of the arm portion 2 to perform pull-out control, and then the second rotating shaft 25 is moved. The label L is rotated 180 degrees (m5) to the center to adjust the orientation of the label L, and the tray T is driven by the front-back direction driving means 24 to adjust the front-back position of the sticking position (m6). Further, the position of the main body 1 is changed (m3) to the right by the left-right driving means 16 so that the label issuing position of the main body 1 is brought closer to the label sticking position.
In this way, by changing the orientation of the label L by 180 degrees and attaching the label L to the right side portion of the tray T, it is possible to create an affixed state substantially the same as attaching the label L to the left side portion of the tray T. This eliminates the need to increase the width of the entire affixing device more than necessary.

FIG. 10C shows a case where the label L is attached to the right side portion of the tray T in a direction different from the orientation in which the label L is issued by 90 degrees.
The sticking portion 3 rotates the sticking portion 3 (m2) in synchronization with the rotation (m1) from the label suction position P1 to the label sticking position P2 of the arm portion 2 to perform pull-out control, and then the second rotation shaft 25 The direction of the label L is adjusted by rotating 90 degrees counterclockwise (m7) around the label L, and the tray T is driven by the front-rear driving means 24 to adjust the front-back position of the sticking position (m8). Is done. Further, the position of the main body 1 is changed (m9) to the right by the left-right driving means 16 so that the label issuing position of the main body 1 is brought closer to the label sticking position.
As described above, the sticking device of the present embodiment can stick the label L to various positions on the surface of the tray T in various directions.

(Static elimination means for affixing device)
As the packaging process by the packaging device is repeated, static electricity may be accumulated in the packaging device, the package, etc., which is not preferable.
Therefore, in the sticking device of the present embodiment, the static elimination means is arranged in the vicinity of the suction pad 33 of the sticking portion 3 to eliminate the static electricity of the package and the sticking device B.
Hereinafter, the static elimination means will be described with reference to FIG.

The static elimination means 7 in the present embodiment is formed of a static elimination sheet 71 such as a conductive non-woven fabric provided so as to surround the suction pad 33 of the sticking portion 3, with respect to the upper block 321 of the sub-arm portion 32. It is attached by the mounting bracket 72.
The static eliminator sheet 71 is made of a wide tongue-shaped sheet-like material so as to cover the outer periphery of the suction pad 33 attached to the sub-arm portion 32 on the anti-sticking rod side, and the lower end of the static eliminator sheet 71 is the suction pad 33. It is attached so as to be slightly above the lower end, and when the suction pad 33 attaches the label L to the film F surface, the lower end of the static elimination sheet 71 comes into contact with the film F to remove static electricity accumulated on the film F. doing.

Normally, when the label L, which is held by standby at the label issuing position, is sucked and held, the portion of the label L placed on the label mounting plate 142 is often sucked by the suction pad 33, resulting in this. In addition, as shown in FIG. 11A, one side end of the label L is held.
In such a holding state, even if the suction pad 33 is bent to the left from the state shown in FIG. 11A, the suction pad 33 comes into contact with the upper surface of the film F, and the suction pad 33 causes the film F to come into contact with the film F. Is less likely to hurt. On the contrary, when the film F is folded to the right as shown in FIG. 11C, the suction pad 33 comes into direct contact with the upper surface of the film F, and there is a high risk of damaging the film F.

In the static elimination means 7 of the sticking device according to the embodiment of the present invention, since the static elimination sheet 71 is configured to cover the outer periphery of the suction pad 33 attached to the sub-arm portion 32 on the anti-sticking rod side, the suction pad 33 When the film F is folded to the right as shown in FIG. 11 (c), the static elimination sheet 71 can be present between the suction pad 33 and the film F to prevent the suction pad 33 from damaging the surface of the film F. can do.

(Structure of label issuing department)
The label issuing portion provided on the front surface of the main body portion 1 will be described with reference to FIGS. 12 and 13.
As shown in FIG. 12, the label issuing unit includes a cutter means 13 that cuts a strip-shaped label paper to create a label L, and a label mounting unit that supports the lower surface of the label L when the label L is adsorbed by the sticking unit 3. It has 14.

The label mounting portion 14 is arranged at a position slightly below the front of the label issuing port 13a that opens in front of the cutter means 13, and is provided by the support frame 141 fixed to the main body 1 (printing means 12). It is attached so that the position can be adjusted in the left-right direction with respect to 13a.
The surface of the label mounting portion 14 is coated to prevent sticking, and the label mounting plate 142 on which the label L is mounted and a buffer such as a sponge arranged on the lower surface of the label mounting plate 142 are buffered. It has a material 143, and when the label L is adsorbed by the adsorption pad 33, the load applied to the label L is reduced and the surface of the label L can be brought into vertical contact with the adsorption surface of the adsorption pad 33. There is.
As an example of the coating process, the coating process can be performed by an appropriate method such as attaching a specially coated film or directly processing the surface of the label mounting plate 142.

The cutter means 13 includes a cutter unit 131 having a fixed blade 131a and a movable blade 131b, and a drive unit 132 for moving the movable blade 131b up and down. A surface plate 133 provided with 133a is arranged and integrally fixed by a fixing means n such as a screw.
Below the cutter unit 131, an oil coating portion 134a for applying oil to prevent the adhesive of the label L from adhering to the cutter blade or the like when the label L is cut is held by the oil coating portion holding means 134. The oil coating portion holding means 134 is provided with a label sticking prevention portion 134b that prevents the adhesive surface of the label L adsorbed by the sticking portion 3 on the label mounting plate 142 from sticking to the periphery of the label issuing port 13a. Has been done.

The label sticking prevention portion 134b is formed in a saw shape having an uneven upper end, and is a suction pad for the surface of the label L issued from the label issuing port 13a and mounted on the label mounting plate 142. When the sticking surface of 33 is pressed and sucked and the label paper is cut by the cutter means 13, the sticky surface near the label issuing port 13a is supported from below.
Since the upper end of the label sticking prevention portion 134b is formed in a saw shape having irregularities, it is supported at a plurality of points with respect to the adhesive surface of the label L, and the adhesive surface of the label L is supported at the start of movement of the label L. It does not stick in the vicinity and can quickly leave the issuing position.

-Attachment detection means and ascending motion control-
As described above, in the sticking apparatus of the present embodiment, when the label L adsorbed on the suction pad is attached to the object to be attached and then the ascending operation of the affixed portion is started, 1. In order to release the label from the suction of the suction pad, a release valve that releases with the sticking operation of the sticking part is used. The sticking of the label by the sticking portion is detected by detecting the breakage of the vacuum in the vacuum path to the suction pad by the release valve.

That is, in the present embodiment, the label L is released from the suction state in which the label is sucked and held in the middle of the continuous vacuum path 6a between the suction pad 33 and the pressure adjusting means 6 by attaching the label L to the tray T. By providing a release valve 324 that does not require any power, the label can be smoothly released when the label is affixed, and the pressure change from the vacuum state in the vacuum path 6a to the atmospheric pressure state due to the release of the release valve 324 is applied. It is detected by the detecting means and used as a switch for raising the sticking portion.

Therefore, since the release of the release valve and the ascending control of the sticking portion are started by the reaction force accompanying the sticking operation itself, malfunction is unlikely to occur. For example, product data (tray dimensions, pasting position, etc.) required for pasting operation is input and stored in advance, and if the tray height data is stored as product data for the rise control of the pasting portion, the product data can be stored. Although it is possible to control the descent and ascent of the affixed portion based on the height data, the height at the affixed position may differ depending on the packaging state and the arrangement in the tray even for the same type of product. When the sticking process is performed on such a product, the height error of the sticking position for each product cannot be dealt with, and the sticking quality cannot be kept constant.

If the height information of the product is detected by the sensor between the completion of packaging and the sticking of the label, it is possible to control the lowering and raising of the sticking part, but the control is complicated and leads to an increase in cost. ..
On the other hand, in the sticking device of the present embodiment, the sticking portion may be lowered until the pressure change is detected by the pressure sensor, height information is not required, and it is not necessary to prepare a sensor or the like for that purpose. It is possible to realize simplification and cost reduction.
The pressure sensor 51 as a sensor for detecting the sticking may be provided anywhere as long as the pressure in the vacuum path 6a can be detected, that is, it is not necessary to provide the pressure sensor 51 in the vicinity of the sticking portion which operates in a complicated manner for sticking the label L. Since the wiring required for the electrical sticking detection means is not required, the configuration around the suction pad 33 of the sticking portion 3 can be simplified and is economical.

Further, the reaction force of the contact of the affixed portion with the object to be attached releases the release valve to cause a pressure change, and the pressure change starts the ascending operation of the affixed portion. Then, regardless of the height of the portion to be attached, the product is always attached with a constant pressure, so that the application quality can be uniformly finished.

The contact pressure (that is, the sticking pressure) with respect to the object to be attached for releasing the release valve 324 assists the release of the release valve 324, for example, on the sticking rod side or the suction pad side of the lower block 322 of the sticking portion 3. Alternatively, the pressure can be adjusted by providing a weight that resists the release of the release valve 324, so that the application pressure can be changed depending on the object to be attached.

Further, in order to quickly shift to the vacuum state by the pressure adjusting means 6 or the atmospheric pressure state by releasing the release valve 324 in the vacuum path 6a, the diameter of the vacuum path 6a is in the vacuum path 6a. It is desirable to form the same in.
Furthermore, since the replacement control of the suction part such as the suction pad (suction part) 33 using the detection value detected by the pressure sensor is performed, the replacement time is notified by using the preset number of times of sticking and the usage time. It is possible to solve the problem that the suction part such as the suction pad that can be used is replaced, which has occurred in the control, and the problem that the replacement is not prompted even though the label cannot be sucked.

1: Main body 11: Paper support shaft 12: Printing means 13: Cutter means 13a: Label issuing port 131: Cutter unit 131a: Fixed blade 131b: Movable blade 132: Drive unit 133: Surface plate 133a: Prevention plate 134: Oil coating Part holding means 134a: Oil application part 134b: Label sticking prevention part 14: Label mounting part 141: Support frame 142: Label mounting plate 143: Cushioning material 15: First rotation shaft 15a: Bracket 15b: Bracket 16: Left and right Directional drive means 17: Directional drive means 2: Arm part 21: First rotation drive means 22: Vertical drive means 23: Second rotation drive means 24: Directional drive means 25: Second rotation shaft 3: Sticking part 31: Sticking rod 31a: Upper end 32: Sub-arm part 321: Upper block 321a: Air passage 322: Lower block 322a: Air passage 323: Shaft 324: Release valve 33: Suction pad 33a: Suction path 331: Main body part 331a: Mounting part 331b: Buffer Part 332: Suction part 333: Skirt part 334: Circular rib 4: Discharge means 50: Control means 51: Pressure sensor 52: Origin stop sensor 53: Deceleration start sensor 6: Pressure adjusting means 6a: Vacuum path 7: Static elimination means 71: Static elimination sheet 72: Mounting bracket A: Film packaging device B: Labeling device F: Film L: Label M1: Arrow M2: Arrow M3: Arrow M4: Arrow M5: Arrow P1: Label suction position P2: Label sticking position R: Paper roll T: Tray a: Machine b: Product mounting unit c: Film packaging means d: Conveying conveyor e: Product discharging unit h: Input display means n: Fixing means

Claims (6)

A suction part that sucks the sticking medium depending on the negative pressure state,
A vacuum path that forms the negative pressure state and has a predetermined diameter width,
A release valve for releasing the pressure in the suction portion is provided.
When the sticking medium adsorbed on the suction portion comes into contact with the sticking object, the release valve rotates toward the sticking object, and the negative pressure state is released in the diameter width of the vacuum path. A sticking device characterized by being made. The pressure adjusting means for making the inside of the suction part into a negative pressure state and the pressure detecting means for detecting the pressure in the suction part are provided, and when the pressure detecting means detects that the negative pressure state in the suction part is released, the said The sticking device according to claim 1, wherein it is determined that the sticking medium is stuck on the sticking object. The sticking device according to claim 2, wherein when it is determined that the sticking medium has been stuck, the suction portion moves to a standby position for sucking the next sticking medium. Claims 1 to 1, wherein when the elastic member provided in the suction portion comes into contact with the object to be attached and the elastic member is deformed, the release valve rotates to release the negative pressure state. The sticking device according to any one of 3. A storage means for storing the threshold value of the pressure value of the suction portion, and
By comparing the pressure value of the suction portion detected by the pressure detecting means with the threshold value, a determination means for determining whether or not the suction portion needs to be replaced, and a determination means.
When the determination means determines that the suction portion needs to be replaced, the determination means includes a notification means for notifying the replacement of the suction portion.
The sticking device according to any one of claims 2 to 4, wherein the sticking device is characterized by the above. A packaging device provided with the sticking device according to any one of claims 1 to 5.

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