JP4892815B2 - Labeling device - Google Patents

Description

  The present invention relates to a label affixing device that affixes a price label, a POP label, etc. to a product, and more particularly to a technique for controlling a label affixing position on a product.

The label adsorbing part adsorbs and holds the label that is issued from the label issuing unit and is located at the label issuing port for the so-called packed product in which the product is accommodated in a tray and wrapped with a stretch film. There is already known a label sticking apparatus which is controlled so as to stick a label on the upper surface of the packed product (see, for example, Patent Document 1).
Also known is an apparatus that can change the label sticking direction by horizontally rotating the label suction portion (see, for example, Patent Document 2).

  The direction of the label attached to the product, for example, a promotional label such as “Bargain” is attached at an angle to the side of the product and tilted in a slanting direction, even among products displayed on the product display shelf. , Make the product stand out and impact customers. Therefore, it is especially done when trying to catch the product to the customer's eyes.

  However, in the label sticking devices described in Patent Documents 1 and 2, when the label orientation (tilt) is simply changed at a predetermined sticking position, a part of the horizontally rotated label protrudes from the product (tray). Even if the distance from the end of the product (tray) to which the label is attached (X direction, Y direction) is set, the label is attached at a position where the distance from the end of the product is different. Therefore, the label attaching position has to be finely adjusted each time, and complicated operations have to be performed.

Japanese Patent No. 3075154 JP 2000-16413 A

  The present invention has been made in view of the above-described problems of the prior art, and the problem is that a complicated operation is not required and the label is placed at the correct position on the top surface of the product even if the label is horizontally rotated. It is providing the label sticking apparatus which can be stuck.

The technical means taken by the present invention in order to solve the above-described problem is that the label adsorbing unit is configured to attach the label located at the label issuing port of the label issuing unit based on the pasting position data for pasting the label at a predetermined position of the product. In the label sticking apparatus that sticks and holds the label on the upper surface of the product being conveyed at a plurality of desired angles including oblique to the side of the product by horizontally rotating the suction part in each size of the label, and the label suction unit based on the attaching position correction data set stored to eliminate protruding from the product top surface of the label into a plurality of desired rotational angle each time including the oblique to horizontal rotation A correction means for correcting the label attachment position is provided (claim 1).
The product referred to in the present invention means, for example, meat or fresh fish stored in a tray, which is packaged with a stretch film, and the label sticking position for this product is, for example, near the label issuing part of the tray. A side is used as a reference, and is expressed by distance coordinates (X direction, Y direction) from one end of the side (lower end in the embodiment) to the center of the label.
The rotation angle for the position correction can be appropriately set, for example, 30 °, 45 °, 60 °, 90 °, etc., and the angle is 0 when the horizontal line passing through the center of the label is parallel to the side of the tray. “°” means a rotation angle in the clockwise direction from the reference position.

  According to the first aspect of the present invention, when the label is attached with an inclination of a predetermined angle, the attachment position is corrected and attached, so the label is rotated to an angle selected from a preset rotation angle (inclination). Even if pasted, for example, a part of the label does not protrude from the product (tray) and can be pasted at the correct position on the top surface of the product.

Fell position correction data with kiha is the center position of the label suction unit, the horizontal movement distance data amount of change in relative distance of movement of the water square direction to the label sticking position on items from the label issuing port, said label suction It consists of timing data for starting the descent from the label affixing position on the product toward the product (claims 2 and 4).
In the horizontal movement distance data, the horizontal movement distance (+, −) to be corrected is set with respect to the distance from the label issuing port to the label application position on the product in the application state where the label is not inclined. Similarly, the timing data is set as data (+, −) to be corrected with respect to the timing based on the distance from the label issuing port to the label application position on the product and the conveyance speed of the product in the application state where the label is not inclined. Has been.

  According to the second and fourth aspects of the present invention, the pasting position correction data stored for each label type is the label pasting position data (from the end of the product to the pasting position from the label issuing port). Horizontal distance data for positioning to a predetermined standby position based on distance data in the X and Y directions to the center of the label) and timing data for lowering the label suction portion toward the product based on the label application signal. The position correction in the left and right direction (X direction) and the up and down direction (Y direction) on the product when the label is attached at an angle can be easily performed.

The label affixing device specifically includes a label adsorbing unit that adsorbs and holds a label located at a label issuance port of a label issuance unit based on affixing position data for affixing a label at a predetermined position of a product, and the label adsorption A first drive mechanism for moving the part in a direction orthogonal to the product transport direction, a second drive mechanism for rotating the label suction unit in a horizontal plane parallel to the product transport surface, and the label suction unit for the product. And a third drive mechanism that moves in the vertical direction perpendicular to the transport surface of the sheet, and based on the label pasting data, the first drive mechanism moves the label suction portion to a predetermined position, and the second drive is horizontally rotating the label suction unit by a mechanism, a plurality of desired including oblique the label label suction unit with adsorbed label toward the product lowers the by the third drive mechanism to the sides of the product In the label sticking apparatus for sticking to the product top surface being conveyed at an angle, with each size of the label to the sticking, and the of the label into a plurality of desired rotational angle each time including the diagonal which horizontally rotates the label suction unit The labeling position of the label is corrected by controlling the first driving mechanism and the third driving mechanism based on the sticking position correction data set and stored so as to eliminate the protrusion from the upper surface of the product ( Claim 3).
According to the third aspect of the invention, even if the label is pasted by rotating the label to a predetermined rotation angle by the second drive mechanism, the pasting position is corrected, so that, for example, a part of the label is a product (tray). It does not stick out and can be attached to the correct position on the top of the product.

In addition, the pasting position correction data may be set and stored in label format data.
In this case, by selecting the label format, the pasting position can be calculated immediately based on data such as the width of the product (tray).

Furthermore, you may provide the selection means which selects a desired rotation angle from the rotation angle of the said label set beforehand (Claim 6).
In that case, the optimum sticking angle can be freely selected according to the label, and the label can be stuck to the product in a normal inclination state.

Further, the pasting position correction data is provided so that a label is pasted while maintaining a distance from each adjacent side of the preset tray to the center of the label.
With this configuration, even when the label is selected to be rotated and pasted, the label is pasted while maintaining the distance from the preset end of the product (tray), so that part of the label does not protrude from the product. . And since the distance from the edge part of goods is maintained, the state of label affixing can be made uniform, and the easy-to-read goods display becomes possible.

The label sticking device of the present invention has the structure according to claims 1 and 3, and when the label is stuck at a predetermined angle, the label position is corrected on the basis of each rotation angle, so the label is always placed at the correct position. Can be affixed to.
In addition, according to the configurations of claims 2 and 4, the position correction when the label is rotated by a predetermined angle is the distance data for horizontally moving the label suction portion and the timing for lowering the label suction portion toward the product. Since it is data, it is possible to reliably and easily correct the pasting position on the product.

Furthermore, according to the configuration of claim 5, the label pasting position can be calculated immediately based on data such as the width of the product (tray) only by selecting the label format.
Further, according to the configuration of the sixth aspect, it is possible to easily select the label sticking angle, and the label sticking at the selected angle can be corrected in position based on the correction data and pasted at the correct position.
Furthermore, with the configuration according to claim 7, even when the label affixing angle is selected, the label is affixed while maintaining a predetermined distance from the ends (two intersecting sides) of the product. A part of the sticking out does not stick out. Thereby, it is possible to make the labeling method uniform, and when the product with the label attached is displayed on the product display shelf, it is possible to provide an easy-to-view product to the customer.

Hereinafter, a label sticking device in which an embodiment of the present invention is incorporated in a weighing package pricing device will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing the entire weighing and packaging price device, A is a stretch film packaging machine, B is a label issuing unit (measuring label printer), and C is a package that receives a label issued from the label issuing unit B. It is a label sticking device to be attached to a product (product), the label issuing unit B is arranged at the upper side of the package discharge path (heat seal part) 10 in the stretch film packaging machine A, and the label sticking device C is the discharge device It is arranged above the road.

The stretch wrapping machine A is an elevator in which a product placement unit 13 for placing the product G is placed in front of the machine casing 14, and the product G placed on the product placement unit 13 is provided inside the machine frame by the pusher conveyor 1. Transport to 2. In addition, the case where goods G are conveyed in the state accommodated in the tray which is a container is illustrated, and the goods mounting part 13 is comprised as a weighing pan of the measurement part 15, In the vicinity of the front side, a width detection sensor 17a for detecting the lateral width of the product G is provided.
Furthermore, a height detection sensor 17b is provided in the middle of the product conveyance path by the pusher conveyor 1 to detect the height of the product located on the side of the conveyor 1.
A wrapping section 3 is provided above the elevator 2, a film roll 4 is set on the side of the wrapping section 3 (a direction perpendicular to the pusher conveyor), and a film 4 ′ fed out from the film roll 4 is placed. It is pulled out by the film feed mechanism 5 and cut to a predetermined length and then transferred to the packaging unit 3.

In the packaging part 3, the film folding mechanism 6 and the left and right folding members 7 and 7 ′ are folded over the film feed mechanism 5 at the end of the film 4 ′ covering the upper surface of the product G toward the bottom of the product. A discharge pusher 8 that discharges the packaged package G ′ that is positioned above the members 7 and 7 ′, and a front folding roller 9 is disposed at a front position in the movement direction of the discharge pusher 8.
The film feed mechanism 5 includes a pair of upper and lower endless elastic belts 5a and 5b that sandwich a side end in the width direction of the film, and a clamp plate 5c that presses the lower elastic belt 5b toward the upper elastic belt 5a. They are arranged on the front and back with the packaging part 3 in between.

  Further, in front of the front folding roller 9, a discharge path (heat seal portion) 10 for heating, bonding and discharging the overlapping portion of the end of the film folded on the bottom surface side of the product G and a discharging means at the front portion thereof 11 is disposed, a console section 12 is provided on the machine casing 14, a label issuing section (weighing label printer) B is disposed above the side of the discharge path (heat seal section) 10, and a heat seal section 10 is disposed above the heat seal section 10. The label sticking device C is installed.

In the stretch wrapping machine A, the product G conveyed on the elevator 2 is pushed up with respect to the film 4 ′ stretched on the packaging part 3 by the lift of the elevator 2, and the film 4 ′ covering the upper surface of the product G Is folded to the bottom side of the product G by the rear folding member 6 and the left and right folding members 7 and 7 '.
Next, the product G is horizontally pushed toward the discharge path (heat seal part) 10 by the discharge pusher 8 while the front end of the film 4 'is folded to the bottom side of the product G by the front folding roller 9. The overlapping part of the film edge part folded in the bottom face side is heat-sealed by the discharge path (heat seal part) 10, and package G 'is obtained.

  The label issuing unit B calculates the price of the product from the unit price set in advance based on the data measured by placing the product G on the weighing pan 15 of the product placing unit 13 of the stretch wrapping machine A. The label issuing port B holds the printed and issued label L substantially horizontally with the printing surface facing up in the label issuing section B. 16 is provided.

  The label sticking device C for sticking the label held at the label issuing port 16 of the label issuing unit B to the package G ′ includes a label adsorbing unit C1 that sucks the label held at the label issuing port 16, and A driving mechanism C2 that moves the label adsorbing portion C1 and a control unit C3 that controls the operation of the driving mechanism C2 are configured.

  As shown in FIG. 2, the label suction unit C1 includes a label suction surface 18 that sucks and holds a label, and a suction box unit 19 that is disposed above the label suction surface 18 and generates a label suction force on the label suction surface 18. Thus, the suction box portion 19 has a negative pressure inside the box as the fan 19a rotates, and the suction force is generated on the label suction surface 18.

The drive mechanism C2 for moving the label suction part C1 includes a discharge path (heat seal part) 10 through which the label suction part C1 is orthogonal to the conveying direction of the package G ′, that is, the package G ′ is discharged. A first drive mechanism 20 for moving the connected discharge means 11 in the width direction, a third drive mechanism 21 for moving the label suction portion C1 in the vertical direction with respect to the transport surface of the package G ', and a label suction portion It is comprised with the 2nd drive mechanism 22 which rotates the label adsorption | suction surface 18 in C1 in the horizontal surface parallel to the conveyance surface of package G '.

The first drive mechanism 20 is fitted to two guide rods 20a that are horizontally fixed at an upper position of the packaging portion 3 of the stretch wrapping machine and orthogonal to the pushing direction of the discharge pusher 8, and the guide rods 20a. A slidable case 20b, an endless belt 20c arranged in parallel along the guide rod 20a, a stepping motor (horizontal movement motor) 20d and a pulley 20e for moving the endless belt 20c in forward and reverse directions. The case 20b is connected and fixed to the endless belt 20c, the guide rod 20a is attached to the machine frame 14 via a bracket, and the case 20b is moved along the guide rod 20a by the operation of the stepping motor 20d. The

The label adsorbing portion C1 is attached to the distal ends of a pair of upper and lower parallel arms 23 and 23 'whose base ends are attached to a case 20b moved along the guide rod 20a, and the pair of parallel arms 23. , 23 ′ are supported by the third drive mechanism 21 so as to move the label adsorbing portion C1 in the vertical direction with respect to the package G ′.
The pair of parallel arms 23 and 23 'holding the label adsorbing portion C1 can be rotated by two pins 24 and 24' whose base end sides are horizontally mounted at a predetermined interval with respect to the case 20b. The other end side (front end side) of the upper parallel arm 23 is connected to a pin 27 that is movably fitted and mounted in an arc groove 26 of an attachment cylinder 25 that is connected to the upper part of the label suction portion C1. The other end side (front end side) of the lower parallel arm 23 ′ is attached to a rotating shaft 28 that is positioned below the pin 27 and is rotatably mounted on the mounting cylinder 25. Accordingly, the label adsorbing portion C1 is swingable in the conveying direction of the package G ′ around the rotation shaft 28, and the swing swing range is regulated by the arc groove 26 (swing mechanism). The third drive mechanism 21 is attached to the base end side of the above-described upper parallel arm 23, and the label suction surface 18 of the label suction portion C1 is rotated in a horizontal plane around the lower parallel arm 23 '. A second drive mechanism 22 is attached. Further, an angle maintaining means is provided in the case 20b to maintain the tilt angle of the swing when the label suction portion C1 swings.

In the third drive mechanism 21, a gear 29 is fixed to a pin 24 on which the base end side of the upper parallel arm 23 is supported, and a gear 30 that meshes with the gear 29 and is driven to rotate is placed and fixed on the upper surface of the case 20b. The support arm 32 is fixed to the rotating shaft of the motor (vertical movement motor) 31 and the support arm 32 is integrally fixed to both sides of the pin 24 projecting outward from the case 20b. The lower side surface of the upper parallel arm 23 supported to be rotatable with respect to the pin 24 is configured to be supported.
Thereby, when the motor 31 rotates, the third drive mechanism 21 rotates the pin 24 via the gear 30 and the gear 29, and the rotation of the pin 24 rotates the support arm 32 in the vertical direction. The parallel arm 23 supported so as to be rotatable with respect to 24 is supported from below by the support arm 32, and is moved up and down in conjunction with the vertical rotation of the support arm 32, and the parallel arm 23 is supported by the support arm 32. It is possible to turn upward about the pin 24 away from the contact with the pin 24.

As shown in FIG. 2, the second drive mechanism 22 has a gear 34 fixed to one side end of a pin 24 ′ on which a base end side of a lower parallel arm 23 ′ is supported, and a gear 34 meshing with the gear 33. Is fixed to the rotating shaft of a motor (horizontal rotation motor) 35 attached to the outside of the case 20b via a bracket, and a sprocket 36 is fixed to the other end of the pin 24 '. Further, a sprocket 37 is fixed to one end of a rotary shaft 28 that is rotatably mounted on the mounting cylinder 25 fixed to the label suction portion C1, and the sprocket 37 and the sprocket 36 are toothed. A belt 38 is wound, and a gear 39 is fixed to an intermediate portion of the rotary shaft 28, and a gear 40 that meshes with the gear 39 is fixed to a support shaft that engages and supports the label suction surface integrally. It is configured. (For details of the drive mechanism, see Japanese Patent Laid-Open No. 9-77034)

FIG. 3 is a block diagram showing the electrical configuration of the apparatus described above, and includes a label issuing unit (measurement label printer) control unit D and a packaging mechanism control unit E.
The label issuing unit (measurement label printer) control unit D mainly controls the label issuing unit and is controlled by the CPU 41.
The packaging mechanism control unit E mainly controls the mechanism unit of the stretch packaging machine A, and is controlled by the CPU.

Next, the label issuing unit control unit D will be described. The CPU 41 has a ROM 42, a RAM 43, a display operation unit (console unit 12) 44, a measuring unit 45, a communication interface circuit (INF) 46, a print, via the bus 41a. The unit 47, the suction unit driving unit 48, and the product detection sensor 49 are connected, and the ROM 42 stores various control programs executed by the CPU 41.
The RAM 43 includes various registers and flags used when the CPU 41 executes the control program in the ROM 42, and a preset data area in which various data is stored in advance for each product.
In the preset data area, “product name”, “unit price”, “barcode”, etc., which are data for price calculation and label printing, corresponding to the product (product number) G are stored (see FIG. 5). ), A label pasting data file (see FIG. 6), a tray file (see FIG. 7), and the like are stored. Details of each file will be described later.

The display operation unit (console unit) 12 includes an operation unit including a keyboard and a touch panel, and a display unit configured by a liquid crystal display. Input of various data and commands, or input data based on commands of the CPU 41 is provided. Display, display of preset data, and display of various messages. Therefore, selection of the rotation angle of the label in the present invention can be performed by operating the operation unit of the display operation unit 12.
The weighing unit 45 supplies a weighing signal of the product G placed on the product placing unit 13 to the CPU 41.
The communication interface circuit (INF) 46 is a circuit for communicating various data and commands with the packaging mechanism control unit E.
The printing unit 47 is a label issuing unit (weighing label printer) and includes a thermal printer. Based on a command from the CPU 41, the label is printed with a product name, a price, a unit price, a barcode, and the like. To be issued.

The suction unit drive unit 48 moves the label suction unit C1 by the drive mechanism C2 described above to suck the label at the label issuing port 16, and then moves it to a predetermined label application position and the direction of the label suction surface 18 Is a mechanism for attaching a label in a predetermined direction to a predetermined position of the product by lowering the label adsorption unit at a predetermined timing with respect to the product. Details of the suction unit driving unit 48 will be described later.
The product detection sensor 49 is disposed on the side of the discharge path (heat seal portion) 10 and detects the presence or absence of a package (packaged product) G ′ in the discharge path to generate a signal for labeling. However, when the product is located at the label affixing location, that is, the discharge path (heat seal portion), the fact is supplied to the CPU 41.

Next, the packaging mechanism control unit E will be described. A communication interface circuit (INF) 51, a ROM 52, a RAM 53, an operation unit 54, and a mechanism drive unit 55 are connected to the CPU 50 via a bus 50a.
The communication interface circuit (INF) 51 is a circuit for communicating various data and commands with the label issuing unit control unit D described above.
The ROM 52 stores a control program executed by the CPU 50.
The RAM 53 has various registers and flag areas used when the CPU 50 executes the control program of the ROM 52, various tables for determining control data based on product shape data (vertical, horizontal, and height). Is remembered.
The operation unit 54 is a switch for starting and stopping the apparatus.

The mechanism drive unit 55 is a circuit for driving each mechanism unit of the packaging machine when packaging is performed. Specifically, the motor 56 drives the elevator 2 and the carry-in motor 57 of the pusher conveyor 1 carries the product G. And a film transfer motor 58 of the film feed mechanism 5. Although the structure of the packaging machine has been briefly described above, since it is not directly related to the present invention, the details of the control of the motor will be omitted.
In addition, a product width detection sensor 17a that detects the width of the product G and a product height detection sensor 17b that detects the height of the product G are connected to the mechanism driving unit 55, and the detection data is supplied to the CPU 50. It is like that.

  The data and commands sent and received by the label issuing unit control unit D and the packaging mechanism control unit E are related to the present invention by the label issuing unit control unit D to the packaging mechanism control unit E on the product placement unit 13. A signal for informing that the weighing of the product placed on the product is stable is transmitted, and the product width detection sensor is used as data for determining the label application position from the packaging mechanism control unit E to the label issuing unit control unit D. One length data (length data from the center of the product to the end in the width direction) and height data detected in 17a are transmitted.

FIG. 4 shows details of the configuration of the suction unit drive unit (drive mechanism C2) 48 described above. The horizontal motor M1 drive circuit 59 sets the label suction unit C1 horizontally, that is, orthogonal to the conveyance direction of the package G ′. A circuit that drives a horizontal motor M1 (motor 20d of the first drive mechanism 20) that moves in the direction, and a stepping motor is used as the horizontal motor M1. Therefore, the position of the suction portion can be detected by counting the number of driving pulses of the stepping motor (a positive count when rotating right, and a negative count when rotating left).
The horizontal reference position sensor F1 (60) is a sensor that detects that the label suction unit C1 is positioned at the reference position in the horizontal direction. The horizontal reference position sensor F1 (60) detects the label suction unit C1 in the horizontal direction based on the count value of the drive pulse from the reference position. Positioning is performed.

Vertical motor M2 driving circuit 61 and the vertical reference position sensor F2 (62), except a motor M2 (motor 31 before Symbol third drive mechanism 21) is for moving the label suction portion C1 in the vertical direction described above The same as the horizontal motor M1.
For the rotation motor M3 drive circuit 63 and the rotation reference position sensor F3 (64), the motor M3 (the motor 35 of the second drive mechanism 22) rotates the label suction portion C1 on a plane parallel to the product discharge path surface. The motor is positioned by the drive pulse of the motor M3 as in the case of the horizontal motor M1 described above except that it is not a distance but a rotation angle.
The label sticking sensor F4 (65) is a sensor for detecting that the label is stuck on the package G ′, that is, that the suction surface 18 of the label suction part C1 is in contact with the package G ′. It is detected that the upper parallel arm 23 has been separated from the support arm 32 due to the upper side force applied to C1 above a certain level.

  FIG. 5 shows an outline of the product file stored in the preset data area, and “product name”, “unit price”, “barcode”, “label number to be used”, etc. are assigned using the PLU No. which is the product number as a key. It is. The product file may be linked to a tray file (see FIG. 7).

FIG. 6 shows an outline of the label pasting data file, and data (a, c) for correcting the distance for moving the label suction portion C1 in the direction orthogonal to the transport direction of the package for each label size and for each horizontal rotation angle. ), Data (b, d) for correcting the timing of lowering the label suction portion C1 with respect to the package G ′ is stored in advance.
When the label orientation state when the label is issued from the label issuing unit B is set as a reference (0 °), the label is rotated by 45 ° clockwise from the state (0 °), for example, at the center of the label. In this case, it is assumed that it is rotated 90 ° clockwise from the 0 ° state. Then, the selected rotation angle, for example, 0 ° is “0”, 45 ° is “1”, 90 ° is “2”, is stored in the angle selection, and the movement distance of the selected angle based on the data Timing data is read out. A rotation angle can be selected as desired. The rotation angle is not limited to the angle shown in FIG. 6 but is determined by the number of steps of the stepping motor. For example, it may be 30 °, 60 °, or the like.

In the label pasting data file, distance data (X0, Y0) from the end of the tray to the center of the label is set. The distance data from the tray edge to the center of the label can be arbitrarily set by the operator.
For example, as shown in FIG. 9, the label position (X0, Y0) on the tray is the distance from the adjacent side of the tray to the center of the label. For example, in the tray having a width of 200 mm and a length of 150 mm, X0: 30 mm , Y0: An example in which 130 mm is set is shown. In this case, there is a blank distance between the outer periphery of the label on the tray and the end of the tray.

Further, the movement distance (horizontal movement distance data) X when the rotation angle is 0 ° is the distance data (X0, Y0) from the tray edge to the center of the label set in advance and the width of the tray during the packaging process. Calculated when detected. Based on the calculated movement distance X and timing data T, label sticking control is performed. However, the moving distance X and the timing data T may be calculated before the packaging operation by associating the tray file to be used with the label pasting data file. That is, the tray is placed at the center of the product placement unit 13, and the horizontal distance (L) of the tray and the distance X0 from the end of the tray to the center of the label are known, so the movement distance X is determined.
For example, when the rotation angle is 0 °, the moving distance X depends on X0 which is input as the horizontal width (L) of the tray. The timing data T is determined by the input Y0 and the conveyance speed of the package G ′.
When the rotation angle is 45 °, ± a is set for the movement distance X as correction data. Similarly, data of ± b is stored in the timing data T.
When the rotation angle is 90 °, ± c is set for the movement distance X as correction data. Similarly, ± d data is stored in the timing data T.

Position correction when the above-described label is rotated and pasted will be described with reference to FIG.
(A) When X0 in the label application condition (X0, Y0) is half the width of the label and the vertical dimension of the tray using Y0, when the label is applied without rotation, the label Affixed to At this position, when the label is rotated 45 ° in the clockwise direction (the center of the label and the center of the label adsorbing portion are the same), the left half of the label protrudes from the tray as indicated by a two-dot chain line.
In order to eliminate the protruding portion of the label, correction data is set in advance so that the center of the label is shifted by ΔX and ΔY.
(B) When the label application condition (X0, Y0) is set so that a certain distance exists from the edge of the tray to the edge of the attached label, the label is rotated 45 ° clockwise at that position (the center of the label And the center of the label adsorbing portion is the same), as shown by a two-dot chain line, the upper left side of the label is in contact with the upper end portion of the tray, and there is an initially set distance from the right end portion of the tray. Therefore, even when the label is rotated, correction data is set in advance so as to shift the center of the label by ΔX and ΔY in order to secure the initially set distance from the end of the tray.
This correction data is set for each label size and for each rotation angle.

  FIG. 7 shows an outline of a tray file, in which the width, depth, height, and tare are stored for each type of tray. These data indicate that when the product is placed on the product placement unit and in the process of transporting the product onto the head of the elevator 2 by the pusher conveyor 1, the width, depth, and height of the product are determined by the sensors 17a and 17b. Detected. Various packaging conditions are determined according to the detected tray size. In addition, a preset tare is calculated from the detected tray.

Next, an outline of the operation of the above-described apparatus will be briefly described.
(1) An operator inputs a product number of a product to be processed from the display operation unit (console unit) 12 and calls preset product data.
(2) When the operator places the product on the weighing pan of the weighing unit 15 constituting the product placing unit 13 and the weighing is stabilized, the packaging operation (carrying in the product) is started.
(3) The label issuing unit control unit calculates the price of the product from the unit price and weight.
(4) The width, length (depth), and height of the product are detected by the sensors 17a and 17b when the product G is placed and transported to the elevator head, and part of the detected data is controlled by the label issuing unit. Sent to the department.
(5) The film cutting length and various packaging conditions are determined based on the vertical, horizontal, and height data of the product G, and packaging is performed based on these data.
(6) During this time, the label issuing unit control unit performs label printing, label adsorption by the label adsorption unit C1, movement of the label adsorption unit C1 to the label application position, and setting of the orientation of the label adsorption surface 18.
(7) When the package G ′ after completion of packaging reaches a predetermined position, a label is attached.

FIG. 8 shows an outline of the label attaching process steps (6) and (7) described above, and is executed by the CPU 41. That is, data such as product name, price, unit price, weight, expiration date, and barcode are printed on the label, and when the label is issued to the label issuing port 16, the following processing is executed.
(Step 1)... The label adsorbing portion C1 located at the initial position is moved to the issuing port 16 and adsorbed to the adsorbing surface 18 with the label adhesive surface facing downward.
(Step 2)... The label standby position (X, Z) is calculated based on the product width data, the X0 data input to the label pasting data file, and the product height data “H”.
At this label standby position (X, Z), the label suction unit C1 holds the label issued to the label issuing port 16 (initial position), and waits to apply the label to the package G ′. In the movement distance data to the position, “X” is a horizontal distance from the initial position to the label standby position, and “Z” is a vertical distance from the initial position to the label standby position (see FIGS. 10 and 11).
Horizontal movement distance X = XC−LR + X0 (see FIG. 10)
XC: distance from the initial position of the label suction unit C1 to the center of the conveyance path (the center of the product).
LR: Detected (measured) by the product width detection sensor 17a.
X0: set value (see FIG. 6).
Thus, the horizontal movement distance X is determined.

Vertical movement distance Z = (Z0−Z2) −H (see FIG. 11)
Z0: A constant value determined by the mechanism at a vertical distance from the initial position of the label suction unit C1 to the transport surface of the package G ′.
Z2: A vertical distance from the label standby position to the label adhesion position (the upper surface of the package), and is set to a constant value so that the label adhesion position does not vary depending on the height H of the product.
H: The height of the product is detected by the product height detection sensor 17b.

The label application timing time T is a delay time from when the package G ′ is detected by the product detection sensor 49 (T = 0) to when the label suction portion C1 starts to descend from the standby position. The label adhesion position in the Y-axis direction on the object is determined. Accordingly, when the time T = 0 is set so that Y0 = 0, when the conveyance speed of the package G ′ is D (mm), the sticking timing time T is calculated by T = Y0 / D. Is done. Y0 is input and set in advance in the pasting conditions.
The rotation direction of the label is known when the product data is called up in the process (1). For example, if a rotation angle of 45 ° is selected, the position-corrected label standby position data is corrected. Pasting timing data is read out.

(Step 3)... The label suction unit C1 is moved to the standby position (X, Z) calculated in Step 2. When the label is rotated and pasted, when the rotation angle is selected, the label is moved to a position including correction data. The movement of the label suction unit C1 to the standby position is determined by the number of steps of the motors M1 and M2 which are stepping motors.
(Step 4)... The rotation motor M3 of the second drive mechanism 22 is driven to set the direction of the label suction unit C1 to the called rotation angle. It depends on the number of steps of the rotary motor M3.
(Step 5) ... It is judged by the commodity detection sensor 49 whether the package G 'has come to a predetermined position. In addition, when sticking a label on the basis of the rear end of the package G ′, it is determined whether the discharge pusher 8 has come to a predetermined position or whether a predetermined time has elapsed since the discharge pusher 8 was activated. .
(Step 6)... When it is detected that the package G ′ has reached a predetermined position, the vertical motor M2 is driven to lower the label suction portion C1.
(Step 7)... It is determined whether a label is attached to the package G ′ by the label attaching sensor.
(Step 8)... When the label is affixed, the vertical motor M2 is driven to raise the label suction part C1 to the top (Z = 0), and then the horizontal motor M1 is driven to set the horizontal direction to X = 0. When the label suction portion C1 is rotated horizontally, the angle is returned to 0 ° and the process is terminated.

In the above-described embodiment, the rotation angle moves while keeping the direction issued from the label issuing unit B as it is, and the label suction unit is rotated by 45 °, 90 °, etc. at the moved position. The direction of the label issued from the label issuing unit is first rotated 90 ° in the clockwise direction, the printed direction of the label is matched with the discharge direction of the package G ′, and the state is set as the reference (0 °), You may make it rotate 45 degrees or 90 degrees from a position.
In addition, the label issuing unit is not necessarily the one that prints and issues labels, but may issue labels that are printed with predetermined items, for example, “bargain”, “SALE”, etc. Furthermore, in the embodiment, the form in which the label is attached to the position of the right half of the package has been described. However, the label application part is provided at the symmetrical position of the package, and the left half and the right half of the package are respectively provided. You may apply this invention to the label sticking apparatus which sticks a label.
In addition, the example has been described in which the center of the label and the center of the label adsorbing portion are coincident, but the present invention is not limited to this, and the label center and the center of the label adsorbing portion are shifted so that the label is attached. Good.
Further, the movement distance (horizontal movement distance data) X and the timing data T, which are correction data, have been described so as to be stored in advance in the labeling data file. When the rotation angle is selected, correction data may be calculated based on the calculation formula.

BRIEF DESCRIPTION OF THE DRAWINGS The longitudinal side view which shows the outline which attached the label sticking apparatus which concerns on this invention to the packaging machine. The enlarged side view which shows a label sticking apparatus part. Explanatory drawing which shows the electrical structure of a control means. Explanatory drawing which shows the detail of an adsorption | suction part drive part. Explanatory drawing which shows the outline | summary of a goods file. Explanatory drawing which shows the outline | summary of a label sticking data file. Explanatory drawing which shows the outline | summary of a tray file. The flowchart figure which shows the sticking operation | movement of a label. Explanatory drawing which shows the positional relationship of the label affixed on a tray. Explanatory drawing which shows the positional relationship of the horizontal direction of the standby position of a label adsorption | suction part, and a label issuing port. Explanatory drawing which shows the positional relationship of the perpendicular direction of the standby position of a label adsorption | suction part and a label issuing port. It is explanatory drawing of the correction data at the time of rotating and sticking a label, (a) is when there is no distance between a tray edge part and a label edge part, (b) is between a tray edge part and a label edge part Shows a case where there is a certain distance.

Explanation of symbols

A ... Stretch packaging machine B ... Label issuing part C ... Label sticking device G ... Product G '... Package L ... Label C1 ... Label adsorbing part C2 ... Drive mechanism 12 ... Selecting means (console part) 16 ... Label issuing port 20 ... 1st drive mechanism 21 ... 3rd drive mechanism 22 ... 2nd drive mechanism

Claims (7)

Based on the affixing position data for affixing the label at a predetermined position of the product, the label located at the label issuing port of the label issuing unit is adsorbed and held by the label adsorbing unit, and the adsorbing unit is horizontally rotated to remove the label. In the label affixing device for affixing to the upper surface of the product being conveyed at a plurality of desired angles including oblique to the side of the product
In each size of the label to the sticking, and setting the stored paste position correction data to eliminate protruding from the product top surface of the label into a plurality of desired rotational angle each time including the diagonal which rotated horizontally the label suction unit A label affixing device comprising correction means for correcting the label affixing position based on the above.   The sticking position correction data includes the horizontal movement distance data of an increase / decrease amount with respect to the horizontal movement distance from the label issuing port to the label sticking position on the product, and the label suction part as a product. 2. The label sticking apparatus according to claim 1, wherein the label sticking apparatus starts timing downward from the label sticking position toward the product. Based on pasting position data for pasting a label at a predetermined position of a product, a label suction unit that sucks and holds a label located at a label issuing port of the label issuing unit, and the label suction unit in a direction orthogonal to the product transport direction A first drive mechanism for moving, a second drive mechanism for rotating the label suction portion in a horizontal plane parallel to the product conveyance surface, and a movement of the label suction portion in a vertical direction perpendicular to the product conveyance surface. A third drive mechanism, based on the label sticking data, the first drive mechanism moves the label suction portion to a predetermined position, the second drive mechanism rotates the label suction portion horizontally, La be affixed to the product top surface in the conveying said label is lowered toward the label suction portion which has adsorbed the label by third drive mechanism to the product to the sides of the product at a plurality of desired angles including diagonal In Le sticking apparatus,
In each size of the label to the sticking, and setting the stored paste position correction data to eliminate protruding from the product top surface of the label into a plurality of desired rotational angle each time including the diagonal which rotated horizontally the label suction unit A label sticking apparatus that controls the first drive mechanism and the third drive mechanism to correct the label sticking position based on the above.   The sticking position correction data includes the horizontal movement distance data of an increase / decrease amount with respect to the horizontal movement distance from the label issuing port to the label sticking position on the product, and the label suction part as a product. 4. The label affixing device according to claim 3, wherein the label affixing device starts timing downward from the label affixing position toward the product.   5. The label sticking apparatus according to claim 2, wherein the sticking position correction data is set and stored in label format data.   6. The label sticking apparatus according to claim 1, further comprising a selection unit that selects a rotation angle of the label.   7. The pasting position correction data is provided so that a label is pasted while maintaining a distance from each adjacent side of a preset tray to a label center. The label sticking apparatus of any one of Claims.

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