JPS6228330A - Automatic labelling method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for marking the producer, date of production, type of contents, etc. on the surface of resin egg containers that are produced in large quantities mainly by vacuum forming. When printing barcodes and pasting labels, various labels with product names, trademarks, etc. printed are automatically and intermittently pasted onto the surface of resin-molded container-shaped products using adhesive. Regarding the method.

<Prior art and its problems> As a means of attaching a barcode to the surface of a resin molded product such as the egg container mentioned above, a barcode is printed in advance on a resin sheet, which is the product molding material, and the barcode is printed. Vacuum forming has been considered and has actually been used in some areas to prevent elongation in the barcode printed area, but this method eliminates elongation and other deformations in the barcode printed area. This is technically difficult, and it is inevitable that some deformation such as elongation will occur during molding. As a result, errors occur in the thickness and spacing of barcodes, and the smoothness of the barcodes is poor, making automatic search performance for date of production, type of content, etc. using barcodes uncertain and inaccurate. There is a drawback that it becomes. This poses a problem in that even when adding something other than a barcode, such as a product name, the printed characters become unclear and difficult to read.

Therefore, a method can be considered in which a label with a barcode or the like printed thereon is prepared separately from the container-shaped product and then attached to the surface of the molded product using an adhesive. In this case, deformation such as elongation during molding of the container-shaped product has no effect on the accuracy of barcodes, etc., so automatic search performance using barcodes as a medium can be performed extremely reliably and accurately. In some cases, it has the effect of being able to plead for it very clearly.

Therefore, as a means of attaching such separately produced labels, as is conventionally known as a means of attaching labels to paper container-like products, a large number of labels originally produced in units of the required size are used. are stacked and held, and from this group of stacked labels, for example, labels are taken out one by one through a stamper with a suction nozzle connected to a vacuum pump, and the taken out labels are taken out through the movement of the stamper. A conceivable method is to transfer the product to a desired location on the surface of the container-shaped product, and then apply a pre-applied adhesive to the desired location.

However, when using the above-mentioned labeling method, the label is generally made of a material that is very thin and easily adhesive, and the operating speed of the stamper is slow in order to perform high-efficiency work. Since it is quite large,
Two or more labels are likely to be sucked together when the stamper picks them up, and the labels that are not in direct contact with the suction surface may fall off during transfer, or the labels on the surface of the product may be pressed together in double stacks. A defective situation such as a label being pasted in a misaligned position may occur, resulting in a large number of defective products when looking at the entire product.

<Means for Solving the Problems> The present invention provides an automatic label affixing method that can reliably, accurately, and efficiently affix a label created separately from a container-shaped product to a desired position on the surface of the product. The purpose is to propose the following.

In order to achieve the above object, the automatic label pasting method according to the present invention rolls a label strip in which a large number of the above-mentioned labels are consecutive and a line along the width direction is printed between each adjacent label. The first process involves winding it into a shape and transporting it sequentially in fixed lengths by a feed roller whose operation is controlled via the @ signal from the sensor that detects the printing line, and the second step when the feeding is stopped. Cutting the unit label from the label strip by applying a cutter to the printing line at the tip in the transport direction while holding the unit label at the tip by vacuum suction from one side and pushing from the other end. A second step is to apply the cut unit label to a desired location on the surface of the container-shaped product in advance by moving the stamper that has vacuum-adsorbed the cut unit label in a direction perpendicular or substantially perpendicular to the transport surface of the label strip. This method is characterized by comprising a third step of applying the label by pressing one adhesive unit label.

<Example> An example of the method of the present invention will be described below with reference to the drawings. Fig. 8 shows a finished product produced by the method of the present invention, and f1+ is an example of a container-shaped product. An egg container, in which the body part ON and the lid part α are integrally connected on one side so as to be able to swing open and open, and for storing a total of 10 eggs on the second side with 5 eggs in the - row. Recessed part (1
8), vacuum forming means 1 of a thin resin sheet is manufactured to form (lb).

The outer surface of the longitudinal side wall on the side of the lid section α in this case is formed into a flat surface (IC) without a recess partition wall. (2) is a label attached to the flat surface α using adhesive (3), and has a barcode C2 scent on one side of a white (base color) thin film such as hard vinyl chloride or moisture-proof cellophane. It is printed.

Figures 1 to 3 show the flat surface α (H) of the lid α of the egg container (1), the label (2) on which the barcode (2B) is printed, and ) is shown as an outline of the mechanism used to automatically and intermittently apply adhesive (3), and (7) is a freely rotating loop roller, which includes A roll (270) of the wound label strip (2A) is supported in a replenishable manner.The label strip (2A)
is the unit length of said label (2) as clearly shown in FIG.
A large number of sheets are continuous in a band shape, and each adjacent label +21. +2
A 1-2 cabinet width line (2L,) is printed in black across the width direction of the 1-room block. (41 is the label strip roll (unrolled from the label strip roll 2A, and the guide roller (
8) and a reflective photoelectric sensor for detecting the black printing line (20) on the label strip (2A) transported via a pair of rubber feed rollers (6),
The sensor (4) and the feed roller (5) are operated by the feed roller (5) according to a detection signal from the sensor (4).
5) by cutting off the drive of the label strip (2A).
The adjacent printing lines (2L) and (2L) are electrically connected to each other so as to be fed out and transferred in fixed quantities with the interval between them as a unit length. (9) is a pair of upper and lower fixed guides that guide the transport of the label strip υN in close proximity to both the front and back (upper and lower) sides of the label strip (2A) fed out and transported as described above; Labels (2) whose front edges Ql)a) in the transport direction are adjacent to each other in the transport direction when the transport is stopped.

(2) It is configured to be located at the same position as the printing line (2L) between. The stamper is a stamper that sucks and holds the unit label (2) at the transfer tip protruding from the fixed guide (θj) from one side (top) side when the transfer is stopped, and this is shown in Fig. 5. As clearly shown, the tip intake hole (10c) of the nozzle αob) connected to the vacuum pump (not shown) is opened in the lower end surface 001) of the stamp member (IOA), which has the same size and shape as the label (2). , is configured to closely adsorb the label (2) to the lower end surface αOm) as the pump operates, and also to adsorb the label (2) to the transfer surface of the label strip C210 via the cylinder (It). It is configured to be able to freely reciprocate in the vertical up-down direction (al direction in the drawing). (
14) is a state in which the unit label (2) of the transfer tip adsorbed to the lower end surface αOa) of the stamper +101 is pressed from the lower surface side to the lower end surface αOa) of the stamper +101, and the vertical reciprocating movement of the stamper (1al). This is a label pushing tool which is pivotably attached to a state where it is retracted to the sideways position of the route and a state where it can be switched freely, and the transfer tip is held between this pushing tool CI4 and the lower end surface 0021 of the stamper. By applying a cutter (1j) to the printing line (21) between the unit label (2) of the set and the following unit label (2), the unit label (2) is cut into a label strip (2).
A). It has been configured for a long time.

α odor is the lid part αB of the vacuum-formed egg container (1))
The table receives and supports the stamper from below, and is placed directly below the stamper (+10), and is arranged so that the stamper (101) moves upward when the stamper moves downward. It is configured to move in the vertical direction (b- direction in the drawing) in conjunction with each other, and by moving the stamper [10 and the Cheagle 0 stamp in relative proximity, the unit label ( 2) is configured to be able to be pressed against the flat surface (10) of the egg container (1). +61 is for automatically applying adhesive to the location where the label is scheduled to be pasted on the flat surface αΩ of the egg container +1). This adhesive dispensing device is disposed diagonally above the table (12), is reciprocally movable in an up-and-down direction (direction C-♂ in the drawing), and is moved diagonally downward. As clearly shown in FIG. 6, the adhesive (3) is applied in a dumpling manner to the four corners of the flat surface αQ of the egg container +1) where the label is to be attached. The timing is such that the adhesive is applied before the unit label is separated by the stamper (1α), that is, when the label strip (2A) is being transported.

Next, the procedure for self-help label pasting using the above mechanism will be described in the order of steps with reference to the time chart of FIG. 7 as follows.

+1) When the sensor (4) detects the black printing line (2L) during the feeding and transport of the label strip C~ as the feed roller frJl is driven and rotated, the feed roller (5) is driven based on the detection signal. is cut off, the label strip is transported by the unit length of cz, ait, and then stopped. (
(state in Figure 1) +21 When the feed roller (6) stops transporting the label strip (2A), a vacuum pump (not shown) is activated, and the position is projected forward from the pair of upper and lower fixed guides (9). The unit label fi+ at the tip of the transfer is adsorbed and held on the lower end surface αOa of the stamper (stamp member αOA in 1013), and at the same time, the label push-up tool α swings upward to lift the unit label (2). The stamp member αO~ is pressed against the lower end face α00 side and the unit label (2) of the transfer tip is held between the upper and lower sides, and in this state, the cutter located between the stamper tlQl and the fixed guide (9) (The l bar moves downward and cuts the unit label (2) from the label strip Q knife at the printing line (2L). (The state shown in the jlXZ diagram) (3) Then, the label is pushed up. The tool (+4) swings downward and moves the stamper (1) holding the cutting unit label (2) by suction through the cylinder (1) downward (in one direction), and at the same time moves the table H upward ( By moving the cutting unit label (2) in relative proximity to the flat surface αQ on which the label is to be attached on the egg container +1), such as moving it in the b direction),
The cutting unit spacing bell (2) is pushed away from the adhesive (3) which has been applied in advance in the form of a dumpling on the flat surface αQ via the quantitative dispensing device (61), thereby applying the adhesive (3) to the sixth The label (2) is firmly attached to the flat surface αO so as not to peel off from its four corners by spreading it out like the lines shown in the figure.

(Shape vB in Figure 3) (4) After pasting the unit label (2), the table θ moves downward and the egg container fi+ with the label pasted is removed from the cheagle α, leaving the unlabeled egg container fi+. While the egg container fi+ is newly supplied to the table θ, the stamper (1@) returns upward, and based on the return signal, the drive rotation of the feed roller (5) is restarted, and the label strip (2A
) was carried out in fixed quantities.

In addition, as the label strip (2A), a form is adopted in which labels (2) are affixed to a plurality of egg containers +1) at the same time while a plurality of rows of label strips (2A) are fed out and transferred at once in the width direction.

Next, other embodiments of the present invention will be listed.

[1] Adhesive (through the metered dispensing device 61)
3) The application process may be performed at a separate location from the stamper and press application location, but it may be performed at the same location as the label suppression application location as in the above embodiment. This is advantageous in terms of equipment cost and space factor.

(II) The adhesive (3) may be applied over the entire surface of the unit label (2), but as in the above example, it may be applied in the form of dumplings at the four corners and the adhesive (3) may be applied over the entire area of the unit label (2).
By pressing the label so that it protrudes from the four corners of the label (2) under external force, reliable and strong attachment without peeling is possible.

[■] The label (2) has a white background and the barcode 0 scent is printed in black, but the background is transparent and the entire surface is printed in white, and the barcode (2B) is printed in black.

It is also good to print in the different colors determined by the size of the egg and use it as both a barcode label and a color-coded label. It is also possible to print in a plurality of colors corresponding to different hues, or to use such a ground color.

(5) The target container-shaped product (1) may be any food packaging container other than a peeled egg container, and the label (2) may be a product name or trademark other than a barcode label. Various types of labels can be considered that are printed with the following information.

[■ The table (+21) may be a fixed type that does not move in the vertical direction.

<Effects of the Invention> As is clear from the detailed description above, when the method of the present invention is used, (1) a material sheet for a container-shaped product is printed with a display such as a bar code, and then it is formed by vacuum forming, etc. Because the display print is not placed on the surface of the resin-molded product, but is displayed on the surface by attaching a label that is made separately from the product, it will not be affected by deformation such as elongation during product molding. First, the required display can be made with high precision and clarity. Because it is attached to the surface of the product under pressure, there is no possibility of defects such as two or more labels being taken out at the same time, resulting in incorrect attachment or misalignment of the attachment position.
can be reliably and accurately attached to the desired position on the product surface, and the incidence of defective products can be extremely reduced.

(3) From the label strip (2A) to the unit label (
Since the cutting of 2) and the pressing of the cut label (2) onto the product surface are performed at the reciprocating location of the stamper (101), these two actions can be performed separately and sequentially at separate locations that are spatially separated. By using the stamper 001, which is one of the device storage elements, as one of the label holding tools during cutting, it is possible to simplify the structure and reduce the device space by reducing the number of components. In addition, the overall membrane aI cost can be reduced, and the desired application speed can be increased, thereby improving work efficiency and productivity.

[Brief explanation of the drawing]

1 to 3 are diagrams showing each state of the schematic mechanism used to carry out the method of the present invention, FIG. 384 is an enlarged plan view of a label strip, and FIG. 6th
7 is a time chart, and FIG. 8 is a perspective view of a completed egg container with a label affixed thereto. (1) is a container-shaped product, (2) is a label, (2A) is a 9
/< /L/ Strip, (2L) is the printing line, C29 is the slit, (3) is the adhesive, (4) is the sensor, (5]
(6) is the feed roller, (6) is the adhesive metering dispensing device, ■)
is a stamper 1Q:4 is a cutter. Figure 4 1 (, Ic loa Figure 8B

Claims (1)

[Scope of Claims] [1] A method for automatically and intermittently pasting a label (2) on the surface of a resin-molded container-shaped product (1) via an adhesive (3), the method comprising: A label strip (2A
) is wound into a roll and this is applied to the printing line (2).
A first step in which the feed roller (5), whose operation is controlled by a signal from a sensor (4) that detects L), sequentially feeds and transfers each fixed length, and a unit label on the tip of the transfer when the feeding and transfer is stopped. (2) is clamped by vacuum suction from one side and pressing from the other side, and the cutter (13) is moved to the printing line (2L) at the tip of the conveyance direction.
), the unit label (2) is cut from the label strip (2A) by cutting the unit label (2) from the label strip (2A); By moving the product in a direction perpendicular or substantially perpendicular to the transfer surface, the unit label (
2) A third step of affixing the label (2) by pressing the label (2). [2] The automatic labeling method according to claim [1], wherein the target container-shaped product (1) is an egg container, and the label (2) has a barcode (2B) printed thereon. . [3] Adhesive application to the container-shaped product (1) is performed via a quantitative dispensing device (6) immediately before the label pressing action by the stamper (10) and at the label pressing action location. A self-help label pasting method according to claim [1]. [4] The automatic label pasting method according to claim 1, wherein the line detection sensor (4) is a photoelectric sensor. [5] Automatic label pasting according to claim [1] or [3], wherein the adhesive (3) is applied in the form of dumplings at positions corresponding to the four corners of the unit level (2). Method.