JPH0442246B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a labeling device that automatically applies labels to continuously transported products using compressed air.

[Prior art]

FIG. 5 is a schematic diagram showing the configuration of a label issuing machine equipped with a conventional label pasting device. Products 1 and 2 are placed on a tray 3 and moved from the right to the left in the figure by a weighing conveyor 4 and a transport conveyor 5. The weighing conveyor 4 measures the weight of the moving product 1.

On the other hand, 6 is a label roll paper, and a large number of labels 7, 7, . . . are pasted on the label roll paper 6 with slight gaps r as shown in FIG. This label roll paper 6 is guided by rollers 8 and sent to a printing section 9. Printing department 9
As shown in FIG. 7, it consists of a printer head 10, a platen roller 11, and a peeling member 12.
The label roll paper 6 is held between the printer head 10 and the platen roller 11 and moves between the printer head 10 and the platen roller 11.
The measured values etc. are printed. After passing between the printer head 10 and the platen roll 11, the label roll paper 6 is bent at an acute angle by the peeling member 12, guided by the rollers 13 and 14, and sent to the winding section 15. It is wound up. In this case, the label roll paper 6 is bent at an acute angle by the peeling member 12, so that the label 7 is peeled from the label roll paper 6.
It hangs down and is blown up toward the lower surface of the labeling device 17 by the compressed air blown out from the sub-nozzle 16 . This labeling device 17 is provided with a suction device 18 having a built-in suction fan in its upper part, and the suction fan constantly rotates to maintain a negative pressure in the suction chamber 19. Therefore, air flows into the suction chamber 19 from the hole 20a formed in the suction plate 20 at the lower part of the suction chamber 19, thereby causing the blown-up label 7 to
is attracted to the suction plate 20.

In addition, a plurality of spray nozzles 21, 21, . The compressed air supplied from a compressor (not shown) is distributed at equal pressure in the distribution chamber 22, and is blown out from each of the above-mentioned blow nozzles 21, 21, .
It erupts from a. At this time, the label 7 adsorbed on the suction plate 20 is blown onto the top surface of the product 2 by the ejected air and is affixed. Note that when the label 7 is attracted to the attraction plate 20, the optical sensor 2
3 detects this and stops the advance of the label roll paper 6, so that the label 7 is not issued redundantly.

[Problem that the invention seeks to solve]

By the way, the above-mentioned label pasting is carried out continuously without stopping the transport of the product, and the label issuing speed is extremely fast at 80 labels per minute. For this reason, when the tray on which the label 7 was sprayed was moved, the rear end of the label was sometimes rolled up and blown away by the ejected air without being sufficiently pasted. It is known that this poor adhesion of the label 7 is likely to occur particularly in low temperature conditions where the glue hardens.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a label pasting device that can reliably paste labels.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a printing unit that issues a label, a suction unit that temporarily holds the label by suction, a conveyor that continuously conveys a plurality of products, and a suction unit that holds the label. A label pasting device is provided with a spouting section that blows the labeled label toward the product with an air flow and sticks it on the top surface of the product, the label sticking device has a comb-shaped shape and has a comb-like shape, and the adsorption section It is provided in a substantially vertical plane at a downstream position in the conveyance direction and above the conveyor so as to be perpendicular to the conveyance direction, and is deformed according to the shape of the product, and according to the deformation. Due to the resulting restoring force,
It is characterized by comprising a pressing means for pressing the label blown off onto the top surface of the product against the product.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are a partially cutaway front view and a left side view showing the structure of a labeling device according to an embodiment of the present invention, respectively, and the parts corresponding to FIGS. 5 and 7 have the same structure. A code is attached. The labeling device 40 according to this embodiment differs from the conventional labeling device 17 in that a pressing means 41 made of an elastic material is provided. This pressing means 41 made of an elastic material has a support fitting 42 . The support fitting 42 has a plate portion 42a whose length in the longitudinal direction is slightly longer than the width of the suction plate 20 in the front and back direction.
and mounting plate parts 42c, 42c which are integrated with both ends of this plate part 42a and whose ends 42b, 42b are vertically bent. It is attached to the bottom surface of the suction chamber 19 with screws 43, 43 so as to be sandwiched therebetween. In this case, the longitudinal direction of the plate portion 42a is orthogonal to the transport direction of the product 2. A pressing member 44 is attached to the central portion of the plate portion 42a in the longitudinal direction with screws 45, 45. The pressing member 44 is made of an elastic member such as rubber whose surface is treated with silicon, and is composed of a plurality of book-shaped parts 44a, 44a, . . . and a connecting part 44b that connects them. in this case,
The distance from the tip of the strip 44a to the upper surface of the conveyor 5 shown in FIG. 2 comes into contact with the pressing member 44 during transportation, and the strips 44a... are bent in the direction of transportation of the product 2.

In the above configuration, the label 7 sprayed onto the top surface of the product 2 is attached to the strip 4 bent in the conveyance direction.
4a and the product 2, and is pressed by the elastic recovery force of the strip-shaped portion 44a, and is reliably attached to the product. In this case, since the surface of the pressing member 44 is siliconized, the glue of the label 7 will not adhere to it.

Note that the shape of the pressing member 44 is not limited to this embodiment; for example, instead of the strip-shaped portion 44a, a large number of spherical bodies 46, 46 as shown in FIG.
It goes without saying that a bead-shaped member 47 connected to each other or a cylinder 48 as shown in FIG. 4 may be used. The material may be any material that does not stick easily, such as silicone rubber or Teflon, or any processed material thereof.

In addition, in the above-mentioned example, the label was heated to 25℃~
Warming it to 26℃ will dissolve the nori, making it even more effective.

〔Effect of the invention〕

As explained above, according to the present invention, the pressing member is deformed according to the shape of the product, and the label is pressed and pasted onto the packaging film by stroking it along the top surface of the product. ,
Do not apply shock to the packaging film, and avoid damaging the product.
The advantage is that the packaging film does not wrinkle.

Furthermore, since the pressing means is comb-shaped, the label can be reliably affixed to the top surface of the product even if the top surface of the product is not flat.

In this way, since labels can be reliably affixed to products, the number of issued labels and the number of products will completely match, providing the advantage that products can be managed reliably.

Further, since the present invention does not require a driving means such as a solenoid, it has advantages such as a simple structure, small size, and low cost.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are front sectional views showing a labeling device according to an embodiment of the present invention, respectively;
and a left side view, FIGS. 3 and 4 are partial views showing other pressing members, FIG. 5 is a partial view showing the structure of the label issuing machine, FIG. 6 is a partial view showing the label roll paper, FIG. 7 is a front sectional view showing a conventional labeling device. 41...pressing means.

Claims (1)

[Claims] 1. A printing unit that issues a label, a suction unit that temporarily holds the label by suction, a conveyor that continuously conveys a plurality of products, and a label that is held by the suction unit. , a label pasting device comprising a spouting part that blows air toward the product and sticks it on the top surface of the product, the label pasting device having a comb-shaped shape and downstream of the suction part in the transport direction of the transport conveyor; at a position above the transport conveyor in a substantially vertical plane perpendicular to the transport direction, and is deformed according to the shape of the product, and by a restoring force generated in response to the deformation. . A label pasting device comprising a pressing means for pressing the label blown onto the top surface of the product against the product.