JP7125795B2 - APPLICATION DEVICE AND PACKAGING APPARATUS WITH APPLICATION DEVICE - Google Patents

Description

The present invention relates to an affixing device for affixing an affixing medium such as a label to an appropriate position on an object to be affixed, and a packaging device equipped with the affixing device.

In recent years, in supermarkets, etc., foodstuffs such as side dishes are placed in plastic trays and sold by wrapping them with film. 2. Description of the Related Art A sticking device for sticking a label on which information such as price is printed is known.
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 part, placed at the sticking position, and pasted by releasing the suction. (Patent document 1)

JP-A-60-172633

In general sticking devices, including the sticking device of the above-mentioned prior art document, the suction and holding of the label by the suction portion or the sticking of the label that has been sucked and held is electrically controlled by an electromagnetic valve or a sensor. It was done using the equipment that is used.

However, in order to control the adsorption portion using an electrically controlled device, it is necessary to provide an electromagnetic valve or sensor near the adsorption portion, or to install wiring between the electromagnetic valve or sensor and the control means. , the device and control itself were complicated. In addition, the number of parts is large and the maintenance is complicated, so it cannot be said to be economical.

In view of the above circumstances, it is an object of the present invention to provide a sticking device that can perform suction holding and sticking control by a suction portion of the sticking device with a simple structure without arranging electrical means in the vicinity of the suction portion. With the goal.

In order to achieve the above object, the present invention comprises a suction section having a suction section that absorbs a patch medium under a negative pressure state, and a release valve that releases the pressure in the suction section, wherein the suction section is elastic. It is made of a material and has a suction path that applies a negative pressure to the stuck application medium. A sticking device, wherein the negative pressure state is released by the release valve according to the deformation of the part .

There is no need to provide a sensor, complicated wiring, etc. in the suction part of the sticking device, and the device itself can be simplified to a simple configuration.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general view of the packaging apparatus provided with the sticking apparatus provided with the suction pad which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS 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. FIG. 4 is a side view of the sticking device for explaining the operation of the sticking device provided with the suction pad according to the embodiment of the present invention; FIG. 4 is a plan view of the sticking device for explaining the operation of the sticking device provided with the suction pad according to the embodiment of the present invention; 1A is a side view of the sticking part in a state of sucking a label, and FIG. 4B is a side view of the sticking part when a label is pasted. FIG. is. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the suction 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 It is a sectional view. FIG. 4 is a plan view for explaining sticking position control of the sticking device provided with the suction pad according to the embodiment of the present invention; FIG. 4 is a diagram of a pressure value table used for the replacement notification control of the sticking means according to the embodiment of the present invention; d) is a diagram of a pressure value table in which proper pressure values are set again immediately after the adsorption portion is replaced. FIG. 4 is a plan view for explaining the sticking orientation control of the sticking device provided with the suction pad according to the embodiment of the present invention; It is a figure for demonstrating the drive control of the sticking apparatus provided with the adsorption pad which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the static elimination means employ|adopted for the adsorption pad which concerns on embodiment of this invention, (a) is a side view of the sticking part equipped with a static elimination means, (b) is a sticking part equipped with a static elimination means. FIG. 4C is a plan view, and FIG. 4C is a side view for explaining a state in which the film wrapping the tray is protected by the charge removing means; BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the label issuing part of the sticking apparatus which concerns on embodiment of this invention, (a) is a perspective view of a label issuing part, (b) is the same front view. It is a figure for demonstrating the label issuing part of the sticking apparatus which concerns on embodiment of this invention, and is an exploded perspective view of a label issuing part.

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

As shown in FIGS. 1 and 2, the film packaging apparatus A is arranged in front of the machine body a. A film wrapping means c for packaging, 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 discharge portion e for discharging the tray T wrapped with the film F. ,
Discharge means 4 for conveying the tray T to the product discharge section e, and a labeling device B for applying a label L to the upper surface of the tray T discharged to the product discharge section e. An input display means h such as a touch panel for inputting information for controlling the film wrapping machine A and monitoring the state of the film wrapping machine A is arranged.

Then, in the film packaging apparatus A, the operator uses the input display means h to
By inputting such information as above and placing the tray T on the product placement section b, the tray T is transported to the film packaging means c by the transport conveyor d, and after being wrapped by the film packaging means c,
While being discharged to the commodity discharge section e by the discharge means 4, the label L is adhered to the upper surface of the film F wrapping the tray T by the pasting device B. As shown in FIG.
The stretch film packaging apparatus shown in FIGS. 1 and 2 is provided with a product placing portion b (including a weighing portion) on which an object to be packaged is placed in front of the machine body a, and a product placed on the product placing portion b. An object (tray T) is transported by a transport conveyor d to an elevator (not shown) provided inside the body a.
A film wrapping means c (packaging section) is provided above the elevator, and a film roll placement section (not shown) is provided on the side of the film wrapping means c (packaging section). A film holding means is provided for holding the leading end of the film F to be fed out, and the leading end of the film F held by the film holding means is pinched and pulled out,
A clamp means provided in the film wrapping means c (packaging section) that transfers the film to the film wrapping means c (packaging section) is arranged close to the tip of the film holding means.
A cutter is arranged between the film holding means and the clamping means for cutting the film F clamped and pulled out by the clamping means into a predetermined length.
Above the clamping means provided in the film packaging means c (packaging section), left and right folding plates and a rear folding plate (not shown), and ejection means 4 (ejection pusher) positioned above the rear folding plate are provided. are 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 section) as the elevator rises, and the edge of the film in a stretched state is pushed up. The part is wrapped by the left and right folding plates and the rear folding plate
After folding it into the bottom of the tray T), the item to be packaged (tray T) is horizontally pushed by the ejecting means 4 (ejection pusher) toward the product ejection part e (heat seal part) on the front side of the machine body a, and the above-mentioned 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 with the film. Then, the label L issued by the arm portion 2 and the sticking portion 3 of the sticking device B is stuck to the upper surface of the product while the object to be packaged is pushed out and transferred by the discharging means 4 (discharge pusher). In the film packaging apparatus A of this embodiment, the sticking device B sucking the label descends to the object to be stuck below the sticking device to stick the label. It may be on the upper side, and the sticking position to the sticking object may be not only on the upper surface of the sticking object but also on the side or the back.

- Configuration of application device -
The configuration of the sticking device B employed in the film packaging device A will be described in detail.
(Overall composition)
As shown in FIGS. 1 to 4, the sticking device B of the embodiment of the present invention is a main body portion 1 which is arranged on a machine body a of the film packaging device A so as to be horizontally movable (arrow M1 in FIGS. 1 and 4). and an arm portion 2 supported to be freely rotatable in the horizontal direction (arrow M2 in FIGS. 3 and 4) with respect to the body portion 1, and vertically movable (arrow M3 in FIG. 3) and rotatable with respect to the arm portion 2. (Figures 3 and 4
Arrow M4) at freely supported sticking portion 3 and tray T wrapped with film F
(Arrow M5 in FIG. 3) to the product ejection section e where the label is pasted. Drive controlled.

(Structure of main unit of sticking device)
As shown in FIG. 3, the main body 1 of the applicator B includes a paper support shaft 11 for supporting a paper roll R formed by winding the label paper L, and a belt-like paper delivered from the paper roll R to which the product is attached. It is provided with printing means 12 for printing information and the like, and cutter means 13 for creating labels L by cutting the paper printed by the printing means 12 .
A label issuing port 13a (FIG. 1) for issuing a label is provided on the front surface of the main unit 1, and the belt-shaped paper printed by the printing means 12 is discharged from the label issuing port 13a and held in standby. After being sucked and held by the suction pad 33 constituting the sticking portion 3, the label L is cut by the cutter means 13 to form the label L. As shown in FIG.
In this embodiment, a linerless label is used as the label L, but the label is not particularly limited to a linerless label, and a label with a backing sheet may be used.

Below the label issuing port 13a of the main body 1, a label placing plate 142 (FIG. 14) for waiting and holding the belt-shaped paper so that it does not hang down is provided extending forward. 1 ensures standby holding of the label.
As described above, the main body 1 of the sticking apparatus B is configured as a label issuing means and also as a label (sticking medium) holding means for waiting and holding a label to be stuck.

Therefore, when the body portion 1 moves in the left-right direction on the machine body a of the film packaging apparatus A, the holding (standby) position of the label moves in the left-right direction. The supported sticking portion 3 moves in the horizontal direction as a whole.
The arm portion 2 is not limited to one that is rotatably supported with respect to the main body portion 1 configured as a patch medium holding means. The arm portion 2 is supported separately from the body portion 1 and moves in the left and right direction in conjunction with the body portion 1 . Alternatively, the arm portion 2 may be supported separately so that the arm portion 2 does not move in the left-right direction and can cover the range of left-right movement of the main body portion 1 by rotational motion.

(Arm configuration)
Two upper and lower brackets 15a and 15b are provided in front of the body portion 1, and the arm portion 2 is rotatably supported in the left and right direction with respect to a first rotating shaft 15 formed by the brackets 15a and 15b. there is
The arm portion 2 reciprocally rotates around the first rotating shaft 15 between the label suction position P1 and the label sticking position P2. A second rotating shaft 25 is provided at a position at a predetermined distance from the first rotating shaft 15 , more specifically, at the tip position of the arm portion 2 . is rotatably and vertically movable, and the sticking portion 3 can be rotated and vertically moved by the second rotation driving means 23 and the vertical 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 .
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 longer than the distance from the second rotating shaft 25 to the suction pad 33. Large, that is, the arc (rotatable range) drawn by the arm portion 2 around the first rotating shaft 15 is larger than the arc (rotating range) drawn by the attaching portion 3 around the second rotating shaft 25, A large circular arc motion by the arm portion 2 enables movement to the label L sticking position,
The application angle of the label L can be adjusted by a small circular arc motion of the application unit 3 .
The size 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 size relationship. Also, the arc drawn by the arm portion 2 may be small.

(Structure of sticking part)
As shown in FIG. 5, the sub-arm portion 32 of the sticking portion 3 is formed on the upper block 3 having a substantially rectangular shape in plan view.
21 and a lower block 322 are connected by a shaft 323 , and the lower block 322 is rotatable with respect to the upper block 321 . A sticking rod 31 is fixed to one side of the upper surface of the upper block 321, and a suction pad 33 is fixed to the other side of the lower surface of the lower block 322 to which the sticking rod 31 is not fixed.
The lower block 322 is formed with an air passage 322a continuing to the suction passage 33a of the suction pad 33, and the upper block 321 is formed with an air passage 321a continuing to the vacuum passage 6a from the pressure adjusting means 6 such as a vacuum pump. is formed. The air passage 321 a of the upper block 321 and the air passage 322 a of the lower block 322 are communicated with 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 affixed to the tray T wrapped with the film F in the adsorption state shown in FIG.
3 is pushed upwards. Here, since the suction pad 33 is formed of a material having elasticity as a whole, it is possible to tilt (deform), so as shown in FIG. 33 itself is tilted (deformed) by the same amount as the amount of rotation of the lower block 322
Then, the lower block 322 is rotated around the shaft 323 while keeping the adsorbed label surface parallel. Then, the release valve 324 is released, and the suction path 33a of the suction pad 33 is opened.
The internal pressure is released to the atmospheric pressure, the force of adsorption to the label L is lost, and the label L can be smoothly attached to the film F on the upper surface of the tray T.

(Suction pad configuration)
The suction pad 33 of the sticking portion 3 is made of, for example, an elastic material such as synthetic rubber.
As shown in , it has a substantially cylindrical shape as a whole, and a main body portion 331 constituting the upper portion thereof
, a conical adsorption portion 332 that continues downward from the main body portion 331 and gradually spreads downward.
, a skirt portion 333 that is continuous below the adsorption portion 332 and spreads at a spread angle larger than the spread angle of the conical shape of the adsorption portion 332 and has elasticity;
33 and an annular rib 334 that annularly protrudes downward. The lower end of the rib is located above the lower end of the skirt portion 333 by about 0.5 mm.

The body portion 331 has a mounting portion 331a formed at its upper portion for fixing to the lower surface of the lower block 322 of the sub arm portion 32 of the attaching portion 3, and the outer peripheral surface of the lower portion of the mounting portion 331a is thin. A cushioning portion 331b composed of a plurality of recessed annular grooves is formed so that the suction pad 33 can tilt against an external force. Note that the cushioning portion 331b made up of a plurality of annular grooves is not limited to being formed by hollowing out the outer peripheral surface.
It can also be formed by a bellows or the like. Furthermore, the number of annular grooves may be one.
In addition, as long as the suction pad 33 can be tilted and the suction surface can be kept horizontal during label suction, the main body 331 may be provided with an indirect portion or the like.

The surface of the adsorption portion 332 is flat without forming a thin portion, and is formed to be stiffer than the body portion 331 . Further, since it has a conical shape that gradually expands downward, the force tending to crush the suction pad 33 generated by the negative pressure in the suction path 33a during label suction can be released slightly downward from the horizontal direction. Therefore, crushing of the suction pad 33 during suction is suppressed.
Since the skirt part 333 spreads at a large spread angle and has elasticity, it is elastically deformed when the label L is adsorbed, and comes into surface contact with the surface of the label L, thereby enabling stable adsorption of the label L. At the same time, the annular rib 334 arranged on the inner periphery of the skirt portion 333 abuts against the surface of the label L to be sucked, preventing the label L from being sucked more than necessary and preventing the label L from being wrinkled or deformed. prevent you from doing so.

(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.
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, according to the left-right sticking position of the label L set by the input display means h, The horizontal position of the main body 1 is changed.
Normally, since a predetermined number of wrapping and pasting processes are performed under the same conditions, it is normally driven at the time of the first pasting process and then not driven until the conditions are changed.

The front-rear direction driving means 17 is a driving means for adjusting the pasting position of the label L, and according to the command from the control means 50, the ejecting means 4 such as a pusher is driven in accordance with the set label L pasting position in the front-rear direction. is performed to move the tray T to the commodity discharge section e. Normally, while the tray T is being moved to the commodity discharge section e, the sticking section 3 descends to the upper surface of the tray T to stick the label L. Therefore, the tray T is moved in accordance with the downward timing of the sticking section 3. By controlling the timing, the application position in the front-back direction is adjusted.
Although it is disadvantageous for shortening the sticking time, depending on the products accommodated in the tray T, the height of the products may be uneven, and sticking to a fixed position while the tray T is moving may be difficult. 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 movement position of the tray T by the ejection means 4 such as a pusher.

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

The arm portion 2 is brought to the label suction position P1 by the first rotation driving means 21 during the pasting process.
, and the attaching unit 3 is separated from the label issuing position, so that the label L to be attached next can be issued while the label L is being attached. In addition, since the movement to the sticking position is performed by rotary motion, there is no need to convert the rotary motion of the motor into linear motion, and stable movement is achieved.

The vertical driving means 22 is a means for vertically driving the sticking section 3 with respect to the arm section 2, and performs upward and downward motions of the sticking section 3 during label adsorption and label sticking.

The second rotation driving means 23 is a means for rotating the sticking portion 3 around the sticking rod 31, ie, the second rotating shaft 25, with respect to the arm portion 2 to change the label sticking direction.
Since the label L is moved by the arm portion 2 by rotational movement from the label suction position P1 to the label affixing position P2, the direction of the label L with respect to the arm portion 2 must be changed. The attached label L is rotated while changing its orientation, and the end of the label L on the side of the label issuing section interferes with the mechanism around the label issuing port 13a, causing the adhesive surface of the label L to stick. It may get lost. Therefore, in the sticking device B of the present embodiment, the sticking unit 3 is rotated in accordance with the rotation of the arm unit 2 to move the label L to the sticking position while maintaining the orientation of the label L with respect to the machine body a when it is sucked. Drive control (pull-out control) is performed so that the
After the label L is moved to the sticking position, the sticking direction of the label L can be freely changed by changing the angle at which the sticking unit 3 is rotated. It enables label L to be attached.

(Recovery control of sticking part)
The pressure adjusting means 6 such as a vacuum pump is controlled in conjunction with each driving means. A pressure sensor (pressure detecting means) 51 for detecting the pressure in the vacuum path is arranged in order to detect an increase in pressure in the vacuum path 6a due to breakage of the vacuum path 33 or the like. The pressure inside the vacuum path 6 a detected by the pressure sensor 51 is transmitted to the control means 50 .

Then, as shown in FIG. 5, the adsorption pad 33 attaches a label L to the film F surface covering the tray T.
is attached, the release valve 324 provided in the vacuum path 6a is released by the reaction force thereof, and the air pressure in the vacuum path changes from a near-vacuum state (negative pressure state) to an atmospheric pressure state.
By detecting the pressure change at that time by the pressure sensor 51, the application of the label L is detected.

When the pressure value detected by the pressure sensor 51 rises above a pre-stored threshold value, the control means 50 releases the inside of the vacuum path 6a from the vacuum (negative pressure) state to the atmospheric pressure state. When it is determined that L has been attached to the film F surface, the vertical driving means 22 is controlled to change from the downward movement to the upward movement.

(Replacement notification function of the sticking part)
Furthermore, the sticking device of the present embodiment has a notification function that uses the pressure sensor 51 to prompt replacement of the suction portion such as the suction pad (suction portion) 33 . As a result, replacement notification according to the actual state of the suction part such as the suction pad 33, which was conventionally impossible with the replacement timing notification control using the preset number of pasting times, usage time, etc., becomes possible. In the following description, the term "suction portion such as a suction pad" means all or part of components related to suction including the suction pad (including a vacuum pump and a pressure sensor). )
The suction unit such as the suction pad 33 of the sticking device of the present embodiment prepares for the normal standby state, in which the suction pad 33 is simply on standby, and for suctioning the label L during the packaging process in the packaging device. The sticking process by the sticking device is performed by repeating a preparation standby state in which the label L is on standby, a label sucking state in which the label L is sucked, and a label released state immediately after sticking the sucked label L to the tray T. ing.

In each of the states described above, the inside of the suction portion such as the suction pad 33 is pressure-regulated by the pressure adjusting means 6 so that the suction pad 33 can suction the label L. As shown in FIG.
Specifically, in the normal standby state, the pressure adjusting means 6 does not operate, and the vacuum path 6
a is open to the atmosphere and is at atmospheric pressure (pressure value 10), but in the ready standby state,
The pressure adjusting means 6 is driven, and although the vacuum path 6a is open to the atmosphere, it shifts to a slightly negative pressure state (pressure value 9). In the label sucking state, the label L is sucked while the pressure adjusting means 6 is driven, so that the inside of the vacuum path 6a shifts to a vacuum (negative pressure) state (pressure value 5) at once, and then the label is released. Then, although the vacuum (negative pressure) state is released in the interior of the vacuum path 6a, the state (pressure value 7) does not immediately shift to the atmospheric pressure.
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 is the above-mentioned appropriate pressure value in each state. For this reason, the skirt portion 333 or the like may break, and the vacuum state (pressure value 5) may not be maintained in the label suction state.
In addition, even if no tear occurs, the number of times of use, long-term use, and usage environment may cause wear of the skirt portion 333, etc., deformation or hardening of the rubber material, and gradual vacuum (
It becomes difficult to create a negative pressure) state, and even if a vacuum state can be created temporarily, the vacuum state cannot be maintained, resulting in the problem of dropping the label being sucked. Furthermore, there are cases where components other than the suction pad 33 are defective.
In order to notify such a problem, the pressure sensor 5 in the application device of the present embodiment
Based on the pressure value detected by 1, damage or wear of the suction portion such as the suction pad 33 is detected, and the user is notified to urge replacement.

8 (
A pressure value table 8 shown in a) is used. 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 states of the suction portion such as the suction pad 33;
Appropriate pressure value column 82 in which the appropriate pressure value in each state is associated and set, Detected pressure value column 83 in which the pressure value detected by the pressure sensor 51 is input, and notification of the exchange time of the adsorption part to be described later. and a notification value column 84 in which a threshold value (notification value) that serves as a reference for the determination is set. The pressure value table 8 is stored in a memory such as a RAM in the control means 50, and can be rewritten as appropriate by manual input from the input display means h or the like by the user.
When the control means 50 receives the pressure value in the suction portion (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 portion and stores it in the memory. input to the detected pressure value column 83 of the pressure value table. By comparing the input detection pressure value with the appropriate pressure value in each state of the suction portion such as the suction pad 33 as a threshold value, damage or wear of each component of the suction portion such as the suction pad 33 is determined. .
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 problem such as breakage of the suction pad 33 occurs. It can be determined that it has been replaced, and it can be determined that replacement is necessary.
Then, the input display means h is controlled so as to notify the user that the suction pad 33 should be replaced. As an example of notification, a display such as "The suction pad needs to be replaced. Please replace it." is displayed on the input display means h.
In the example of the pressure table 8 shown in FIG. 8(b), among the detected pressure values detected by the pressure sensor 51, Since it exceeds the appropriate pressure value, it can be determined that some problem has occurred in the pressure adjusting means 6, and it is determined that the pressure adjusting means 6 needs to be replaced. and,
The input display means h is controlled so as to notify the user to replace the pressure control means 6 .
An example of notification is to display a message such as "It is time to replace the vacuum pump. Please replace the vacuum pump." on the input display means h.
Furthermore, in the example of the pressure table 8 shown in FIG. 8(c), since all the detected pressure values detected by the pressure sensor 51 exceed the appropriate pressure value, it is assumed that some problem has occurred in the pressure sensor 51. 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 notification is to display a message such as "It is time to replace the pressure sensor. Please replace the pressure sensor." on the input display means h.
It should be noted that the criteria for judging the defective portion are not limited to the criteria described above, and can be appropriately set by the user.

As described above, it is possible to notify a malfunction of the suction unit such as the suction pad 33, but with only the above notification, the notification is given only when the suction unit such as the suction pad 33 becomes unusable. may be hindered. If possible, it is preferable to notify the replacement of the suction unit before the consumables such as the suction pad 33 become completely unusable and hinder the use.
For this reason, the sticking device of the present embodiment has a function of prompting replacement when, for example, the suction pad 33 has not yet reached the unusable state, but is about to become unusable. In order to notify that the time to become unusable is approaching, that is, it is time to replace, the control means 50 uses a guideline for detecting a failure of the suction pad 33 as a threshold that serves as a reference for informing of the replacement time. "6" obtained by adding "+1" to the appropriate pressure value "5" in the label suction state is set in the pressure value table as the notification value (pressure value 6) and stored in the memory. This setting may be made by manually rewriting the pressure value table by the user, or by automatically adding "+1" to the pressure value in the label suction state.
Then, the control means 50 compares the detected pressure value in the label suction state received from the pressure sensor 51 with the threshold value (informed value), and if the detected value exceeds the threshold value, the suction pad 3
3 is fatigued, etc., and determines that it is time for replacement, and makes the input display means h notify that replacement of the suction portion is necessary.
At that time, a message such as "It is time to replace the suction pad. Please replace it." is displayed on the input display means h.
As a result, replacement of the suction pad 33 can be urged before use of the packaging apparatus is hindered, and the user can replace the suction pad 33 before it becomes unusable.
It should be noted that the replacement timing notification control described above can also be used for components other than the suction pad 33 by changing the setting of the threshold value.
In the notification control, the control means 50 includes determination means for determining that replacement is necessary;
And it functions as a notification means for controlling 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, the pressure value detected by the pressure sensor 51 due to the imbalance of each part constituting the suction part. differences may occur. In such a state, if the exchange notification control of the suction unit such as the suction pad 33 is performed, the detected pressure value is notified even though the suction unit such as the suction pad 33 can generate a sufficient vacuum state and the label can be suctioned. If the value (threshold) is exceeded, it is determined that it is time to replace the valve, and the replacement is notified. situation arises.

For example, after performing a test to detect the pressure value in each state after replacement, the detection value of the pressure sensor in the normal standby state immediately after replacement is "11", and the detection value in the label suction state is "1".
0”, the detected value in the label sucked state is “6”, and the detected value in the label released state is “8”.
detects the pressure value "6" in the label adsorption state, the detected pressure value is the same as the notification value (threshold value) "6" even though the adsorption pad 33 is able to adsorb the label in a sufficient vacuum state. Therefore, it is determined that it is time to replace the suction pad 33, and there is a possibility that the replacement time will be notified.
In order to prevent such problems, the packaging apparatus of the present embodiment has a pressure value table resetting function.

Specifically, after replacing the suction unit, the test operation of sucking and sticking the label is performed several times, and the average value or the like is overwritten as the pressure value of each operation state, and as shown in FIG. 8(d), A pressure value table can be set. Based on the test results, the set pressure value in the label adsorption state is
By rewriting from "5" to "6", the threshold value (notification value) is "7" which is "+1".
, it is possible to prevent erroneous control based on the old setting even when the pressure sensor 51 detects the detection value "6" in the label suction state.
In the above embodiment, the user is notified of the replacement of the suction unit via the input display means h. Alternatively, the maintenance person (serviceman) may be notified on a maintenance screen, an error list screen, or the like.

(Origin return operation)
In the sticking device, it is necessary to shorten the time for the entire sticking process by quickly performing the label sticking operation and the return operation to the origin position after the label sticking. It is necessary to shorten the time required for return, but if the rising speed is high, a large load will be applied when stopping, and there is a possibility that an error will occur in stopping at the correct origin height. Errors in the origin position, ie, the initial position for the next suction operation, have been a major problem in the label suction operation using the suction pad 33, leading to suction errors and failure to apply.

In the sticking device of the embodiment of the present invention, speed reduction control is employed in the return operation for returning the sticking unit 3 to the origin, thereby enabling quick and accurate return to the origin.
Specifically, as shown in FIG. 7, an origin stop sensor 52 for detecting that the upper end 31a of the sticking rod 31 of the sticking portion 3 is at the origin stop position and the upper end 31a of the sticking rod 31 are mounted on the arm portion 2. A deceleration start sensor 53 is provided for detecting that the deceleration start position is located a predetermined distance below the origin stop position.
Then, the return operation of the sticking part 3 from the sticking position is performed at a high rising speed, and the sticking rod 3
When the deceleration start sensor 53 detects that the upper end of the motor 1 has reached the deceleration start position a predetermined distance below the origin stop position, deceleration control of the vertical drive means 22 is performed to reduce the stop load at the origin stop position. there is After that, when the origin stop sensor 52 detects that the upper end of the sticking rod 31 reaches the origin stop position, the driving of the vertical driving means 22 is stopped, so that the accurate return to the origin position can be performed.

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

FIG. 9(a) shows a state in which a 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 attachment state"). , the arm part 2 is the label L
The body portion 1 is arranged on the left side of the machine body a by the left-right driving means 16 so as to be positioned at the substantially center position in the left-right direction, which is the sticking position of the label. Then, the label L is stuck to the center position of the tray T by controlling the forward/backward movement timing of the tray T by the forward/backward direction driving means 17 in accordance with the downward timing of the sticking section 3 by the vertical driving means 22 .
Since the orientation of the label L when affixed is set to be the same as the orientation in which the label is issued, the first
In accordance with the counterclockwise rotation (m1) of the arm portion 2 by the rotation driving means 21, the sticking portion 3 is rotated clockwise (m2) by the same angle by the second rotation driving means 23, thereby changing the orientation of the label L. is controlled to always be the same.

FIG. 9(b) shows a state in which the same label L is attached to the right side of the tray T (that is, the attaching position is changed in the left-right direction), and the attaching position of the label L is the same as that of the label in the reference attaching state. It is set at a position away from the holding position in the left-right direction. In such a case, the horizontal position of the main body 1 is changed (m3) by the horizontal direction driving means 16 so that the label holding (issuing) position itself approaches the label sticking position.
Therefore, the movement of the label from the holding (issuing) position to the affixing position in the affixing process of the label L is performed by the constant rotation operation (m1) of the arm portion 2 by the first rotary driving means regardless of the affixing position of the label L. Therefore, the sticking processing time does not change depending on the label sticking position, and efficient sticking processing can always be performed.

FIG. 9(c) 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 sticking position in the reference sticking state of the tray T, the forward and backward movement timing of the tray T by the front-back direction driving means 17 is controlled to adjust the sticking position forward and backward. m4). Specifically, when the label L is to be pasted forward, the forward movement timing of the downward movement of the pasting unit 3 by the vertical drive means 22 is delayed from the timing in the reference pasting state. When it is desired to apply the tape to the tape, the forward movement timing of the downward movement of the applying portion 3 by the vertical driving means 22 is advanced from the timing in the reference applying state.

Note that the adjustment of the sticking position of the label L in the front-rear direction can also be performed by controlling the stop position of the tray.
As described above, it is possible to adjust the sticking position in the front-rear direction and the left-right direction with respect to the tray T by driving control of the front-back direction driving means 17 and the left-right direction driving means 16 .

(Adjustment of Label Affixing Direction)
With reference to FIG. 10, 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.

FIG. 10(a) shows a case where the orientation of label L is 180 degrees different from the orientation in which label L was issued with respect to the center of tray T in the front, rear, left, and right directions. Label L
is changed by 180 degrees, during the rotation (m1) from the label suction position P1 to the label application position P2 of the arm portion 2, the orientation of the label L is not changed due to the rotational movement. The part 3 is rotated (m2) to control the withdrawal. After the arm portion 2 reaches the label sticking position P2, the sticking portion 3 is moved to the second position by the second rotary drive means 23.
The orientation of the label L is adjusted by rotating it 180 degrees (m5) around the rotation axis 25 .
At this time, since the projecting direction of the sticking portion 3 with respect to the second rotating shaft 25 is reversed, the sticking position of the label L in the front-rear direction is different from that in the reference sticking state.
In order to correspond to the position change, the drive control of the tray T is performed by the front-back direction driving means 24, and the front-back position adjustment (m6) of the pasting position is performed.

FIG. 10(b) shows a case where the label L is attached to the right side of the tray T in a direction 180 degrees different from the direction in which the label L was issued. As in the case of FIG. 10( a ), the sticking unit 3 rotates (m2) during the rotation (m1) of the arm unit 2 to perform pull-out control, and then rotates the second rotating shaft 25 . The orientation of the label L is adjusted by rotating 180 degrees (m5) to the center, and the drive control of the tray T is performed by the front-back direction driving means 24, and the front-back position of the pasting position is adjusted (m6). Further, the main body 1 is shifted to the right (m3) by the lateral driving means 16 so that the label issuing position of the main body 1 is closer to the label sticking position.
By changing the orientation of the label L by 180 degrees and attaching it to the right side of the tray T in this manner, it is possible to create the same attachment state as when the label L is attached to the left side of the tray T. This eliminates the need to increase the width of the whole sticking device more than necessary.

FIG. 10(c) shows a case where the label L is attached to the right side of the tray T in a direction different from the direction in which the label L was issued by 90 degrees.
The sticking unit 3 rotates the sticking unit 3 (m2) in synchronism with the rotation (m1) of the arm unit 2 from the label suction position P1 to the label sticking position P2 to perform pull-out control. is rotated 90 degrees counterclockwise (m7) to adjust the orientation of the label L, and the driving control of the tray T is performed by the front-back direction driving means 24 to adjust the front-back position of the sticking position (m8). is done. Further, the main unit 1 is shifted to the right by the left-right direction driving means 16 so that the label issuing position of the main unit 1 approaches the label pasting position (m9
).
As described above, the label L can be affixed to various positions on the surface of the tray T in various orientations by the affixing apparatus of the present embodiment.

(Static Eliminating Means of Sticking Apparatus)
As the packaging process by the packaging machine is repeated, static electricity may be accumulated in the packaging machine, the package, and the like, which is not preferable.
Therefore, in the sticking device of the present embodiment, static elimination means is arranged in the vicinity of the suction pad 33 of the sticking section 3 to eliminate static electricity from the package and the sticking device B. FIG.
The charge removing means will be described below with reference to FIG. 11 .

The static elimination means 7 in this 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. It is attached by a mounting bracket 72 .
The static elimination sheet 71 is made of a wide tongue-shaped sheet material, and covers the outer periphery of the suction pad 33 attached to the sub arm portion 32 on the side opposite to the sticking rod. It is attached so as to be slightly above the lower end, and when the adsorption pad 33 sticks the label L to the film F surface, the lower end of the static elimination sheet 71 contacts the film F and removes the static electricity accumulated on the film F. is doing.

Normally, when sucking and holding the label L that is waiting and held at the label issuing position,
The part of the label L placed on the label placing plate 142 is often sucked by the suction pad 33, and as a result, one side end of the label L is held as shown in FIG. 11(a). Become.
In such a holding state, even if the suction pad 33 were to bend to the left from the state shown in FIG. less likely to damage Conversely, if the suction pad 33 is bent to the right as shown in FIG.
was at high risk of injury.

In the static elimination means 7 of the sticking device according to the embodiment of the present invention, 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 side opposite to the sticking rod. is bent to the right as shown in FIG. can do.

(Structure of label issuing department)
The label issuing section provided on the front surface of the main body section 1 will be described with reference to FIGS.
As shown in FIG. 12, the label issuing section includes a cutter means 13 for cutting a belt-shaped label paper to create a label L, and a label placement section for supporting the lower surface of the label L when the label L is sucked by the sticking section 3. 14.

The label placement section 14 is arranged in front and slightly below the label issuing port 13a that opens in front of the cutter means 13, and is fixed to the main body part 1 (printing means 12) by a support frame 141.
Therefore, it is attached to the label issuing port 13a so as to be adjustable in the left-right direction.
The surface of the label placing portion 14 is coated to prevent sticking, and the label L
and a cushioning material 143 such as a sponge placed on the lower surface of the label placing plate 142. When the label L is adsorbed by the adsorption pad 33, the This reduces the load and allows the surface of the label L to be in vertical contact with the suction surface of the suction pad 33 .
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 placing 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 having 133a is arranged and integrally fixed by fixing means n such as screws.
Below the cutter unit 131, an oil application portion 134a is held by an oil application portion holding means 134 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. The oil applying portion holding means 134 is provided with a label sticking prevention portion 134b for preventing the adhesive surface of the label L sucked by the sticking portion 3 on the label mounting plate 142 from sticking around the label issuing port 13a. It is

The label sticking prevention portion 134b is formed in a sawtooth shape having unevenness at the upper end,
The suction surface of the suction pad 33 is pressed against the surface of the label L issued from the label issuing port 13a and placed on the label placing plate 142, and the label paper is cut by the cutter means 13. Sometimes, it supports the adhesive surface near the label issuing port 13a from below.
Since the upper end of the label affixing prevention portion 134b is formed in a sawtooth shape having irregularities, the adhesive surface of the label L is supported at a plurality of points, and when the label L starts to move, the adhesive surface of the label L is slid. It does not stick to the vicinity and can quickly leave the issuing position.

-Paste detection means and ascending motion control-
As described above, in the applicator of the present embodiment, when starting the rising operation of the applicator after the label L adsorbed by the suction pad has been affixed to the object to be affixed, 1. In order to release the label from being sucked by the suction pad, a release valve is used that releases the label along with the sticking operation of the sticking part.
. The attachment of the label by the attachment unit is detected by detecting breakage of the vacuum in the vacuum path to the suction pad by the release valve.

That is, in the present embodiment, the vacuum path 6a connecting the suction pad 33 and the pressure adjusting means 6 is released by attaching the label L to the tray T from the suctioned state where the label is suctioned and held. By providing a release valve 324 that does not require any power, the label can be released smoothly when the label is pasted, and the release of the release valve 324 suppresses the pressure change in the vacuum path 6a from the vacuum state to the atmospheric pressure state. It is detected by the detection means and used as a switch for raising the sticking portion.

Therefore, since the release of the release valve and the lifting control of the sticking portion are started by the reaction force accompanying the sticking action itself, malfunction is less likely to occur. For example, the product data (tray size, sticking position, etc.) necessary for the pasting operation is input and stored in advance. Although it is possible to control the descent and rise of the sticking portion based on the height data, the height at the sticking position may differ depending on the packaging state and placement in the tray even for the same type of product. When the sticking process is performed on such products, the sticking quality cannot be kept constant because the height error of the sticking position for each product cannot be dealt with.

If the product height information is detected by a sensor between the completion of packaging and labeling, it is possible to control the lowering and raising of the labeling portion. .
On the other hand, in the sticking device of the present embodiment, the sticking portion only needs to be lowered until the pressure sensor detects a pressure change. simplification and cost reduction can be realized.
The pressure sensor 51 as a sensor for detecting sticking may be installed anywhere as long as the pressure in the vacuum path 6a can be detected. Since the wiring necessary 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 economical.

Furthermore, the release valve is released due to the reaction force of the contact of the sticking part to the sticking object, causing a pressure change.
A change in pressure initiates an upward motion of the sticking part, so when the release valve is released,
Since the product is always stuck with a constant pressure regardless of the height of the part to be stuck, the sticking quality can be made uniform.

The contact pressure (that is, the sticking pressure) on the object to be stuck for releasing the release valve 324 is, for example, the sticking rod side or the suction pad side of the lower block 322 of the sticking part 3, which assists the release of the release valve 324. Alternatively, it 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 applied.

Furthermore, in order to rapidly shift the vacuum path 6a to the vacuum state by the pressure regulating means 6 or to the atmospheric pressure state by opening the release valve 324, the diameter of the vacuum path 6a is 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 is performed using the detection value detected by the pressure sensor, conventionally, the replacement timing is notified using a preset pasting number of times, usage time, etc. It is possible to solve the problems caused by the control, such as replacement of the available suction part such as a suction pad, and the problem that replacement is not prompted even though the suction of the label is already impossible.

Reference Signs List 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 application Part holding means 134a : Oil applying part 134b : Label sticking prevention part 14 : Label placing part 141 : Supporting frame 142 : Label placing plate 143 : Cushioning material 15 : First rotating shaft 15a : Bracket 15b : Bracket 16 : Left and right Direction driving means 17 : Direction driving means 2 : Arm part 21 : First rotation driving means 22 : Vertical driving means 23 : Second rotation driving means 24 : Direction driving means 25 : Second rotating shaft 3 : Pasting part 31 : Pasting bar 31a: Upper end 32: Sub-arm portion 321: Upper block 321a: Air passage 322: Lower block 322a: Air passage 323: Shaft 324: Release valve 33: Suction pad 33a: Suction passage 331: Body portion 331a: Mounting portion 331b: Buffer Part 332 : Adsorption part 333 : Skirt part 334 : Annular rib 4 : Ejection means 50 : Control means 51 : Pressure sensor 52 : Origin stop sensor 53 : Deceleration start sensor 6 : Pressure adjustment means 6a : Vacuum path 7 : Static elimination means 71 : Eliminating sheet 72 : Mounting bracket A : Film packaging device B : Sticking device F : Film L : Label M1 : Arrow M2 : Arrow M3 : Arrow M4 : Arrow M5 : Arrow P1 : Label adsorption position P2 : Label sticking position R : Paper roll T : Tray a : Machine body b : Product placement section c : Film packaging means d : Conveyor e : Product discharge section h : Input display means n : Fixing means

Claims (5)

an adsorption part having a suction part that adsorbs the application medium in a negative pressure state;
and a release valve for releasing the pressure in the adsorption unit,
The suction part is made of an elastic material and has a suction path for applying a negative pressure to the stuck application medium,
When the application medium adsorbed by the adsorption unit comes into contact with the object to be applied, the release valve releases the negative pressure state in accordance with the deformation of the suction unit. Device. A vacuum path is formed upstream of the release valve and continues to the pressure control means,
2. The sticking device according to claim 1 , wherein the axial direction of the suction path formed inside the suction portion is displaced from the axial direction of the vacuum path . 3. The sticking device according to claim 1 , wherein the suction portion is formed with a buffer portion deformable against an external force applied to the suction portion . a storage means for storing a threshold value of the pressure value of the adsorption portion;
determination means for determining whether replacement of the adsorption portion is necessary by comparing the pressure value of the adsorption portion detected by the pressure detection means with the threshold value;
notification means for notifying replacement of the suction unit when the determination unit determines that replacement of the suction unit is necessary;
resetting means for rewriting the threshold value after replacement of the adsorption unit ;
The sticking device according to any one of claims 1 to 3 , characterized in that: A packaging device comprising the sticking device according to any one of claims 1 to 4 .

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