JPH024018Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a labeling machine used in a product packaging weighing and pricing system, etc., and particularly to a labeling machine that affixes a label to the back side of a product.

(Prior art) A series of packaging measurements configured to package and weigh products placed in a tray, then print the price, etc. calculated based on the measurements on a label, and affix this to the product. In this system, a label with a barcode printed thereon is sometimes attached to the product in addition to the label displaying the price and the like. In this case, this barcode label is usually attached to the back of a flat tray for reasons such as ensuring accurate reading by an optical reader and preventing the packaging of the product from collapsing.

By the way, a label pasting machine used for pasting a label on the back of a product generally includes a product transport conveyor with a blank space for the label pasting position, and a machine located below the conveyor that prints the label to be pasted on the product. A label issuing device that issues a label, and a label that receives the label sent out from the issuing device, transfers it to a space on the conveyor with the adhesive side facing upward, and attaches it to the back side of a product that passes above the space. It consists of a transfer device. This label transfer device further includes an intake blower and an intake cylinder from which internal air is sucked out by the blower and whose tip surface is a label suction surface having a slit, and is capable of moving the intake cylinder. The device is configured to suction and hold the label received from the label issuing device and transport it to the pasting position. It is set so as to protrude somewhat from the top surface of the conveyor, and is configured so that the label can be pressed and pasted onto the back surface of the product by lifting it up.

However, with such a configuration, when the suction pipe swings to transport the label from the receiving position to the pasting position, the suction surface contacts the back side of the product in an oblique direction, so the pressing force is applied to the label. It will not work evenly over the entire surface. In addition, even if the label suction surface is eventually oriented horizontally, the label and product may be damaged if the pasting position on the back of the product is not horizontal, or if the pasting position is not at the center of gravity of the product and the product tilts when pushed up. The back side of the label will not line up and the label will not be attached properly.

(Purpose of the invention) This invention addresses the above-mentioned problems in labeling machines that apply labels to the back of products. To make it possible to reliably attach a label issued from a label issuing device to the back side of a product.

(Structure of the invention) The invention is structured as follows to achieve the above purpose. That is, it has a product conveyor with a space provided at a predetermined position, and a label issuing device located below the conveyor that prints and issues a label to be attached to the product, and attaches the label to the back side of the product. In the label pasting machine configured as follows, a label transport device for transporting the label received from the issuing device to a pasting position in the empty space of the conveyor is connected to an intake blower, and the air inside is sucked out by the blower. It consists of an intake box, an intake cylinder which is connected to the intake box and is swingable between a label receiving position and a label pasting position, and a suction head having a slit provided at the tip of the intake cylinder. The intake head is swingable with respect to the intake cylinder, and includes a posture regulating member that regulates the suction head to a predetermined label receiving posture at the label receiving position.

According to such a configuration, the suction tube of the label transfer device suction-holds the label received from the label issuing device with the suction head, and transfers the label to the pasting position in the empty space provided on the conveyor, thereby emptying the label. When pasting the product onto the back surface of the product passing above the product, the suction head swings along the back surface of the product. This ensures that the label is affixed to the back surface of the product with a pressing force that is applied evenly over the entire surface of the label.

Furthermore, since the suction head is regulated to an optimal label receiving posture by the posture control member at the label receiving position, it becomes possible to smoothly and reliably receive the label from the label issuing device.

(Example) The present invention will be described below based on an example shown in the drawings.

As shown in FIG. 1, the label pasting machine 10 is assembled and integrated with a base frame 1, and a product conveyor 20 is supported at both front and rear ends on the upper part of the base frame 1 via support members 2 and 3. and a label issuing device 40 attached to a stand 4 erected at the bottom of the base frame 1.
and a label transfer device 60 provided on the conveyor 20.

As shown in FIGS. 2 and 3, the conveyor 20 includes a pair of side frames 21 and 22, and first and second rollers 23 that are pivotally supported between a starting end and a terminal end of both frames 21 and 22, respectively. , 24 and the first
Third and fourth rollers 25 and 26 are pivotally supported between the side frames 21 and 22 in front of the roller 23 and behind the second roller 24, and a rear top plate 27 is constructed between both the side frames 21 and 22. and a small-diameter fifth roller 30 pivotally supported between the front top plate 28 and bearing brackets 29, 29 protruding forward from the center of the front edge of the rear top plate 27; It has a small-diameter sixth roller 32 that is pivotally supported between bearing brackets 31, 31 that project rearward from the center of the rear edge. In addition, the first and second
Side belts 33 and 34 are wound around both sides between the rollers 23 and 24, and between the center of the first roller 23 and the fifth roller 30, and between the center of the second roller 24 and the fifth roller. Center belts 35 and 36 are wound between the fifth and sixth rollers 32, respectively, and thereby, between the fifth and sixth rollers 30 and 32,
That is, the product conveyor 20 is configured by providing a space A that vertically penetrates between the terminal end of the rear center belt 35 and the start end of the front center belt 36. And one side frame 2
A motor 38 is attached to the motor 1 via a mounting plate 37, and the first roller 23 is driven by the motor 38 via a belt 39, so that each of the belts 33 to 36 runs in the C direction. It is composed of

Further, as shown in FIG. 1, the label issuing device 40 is provided with a roll receiving part 42 and a mount winding part 43 at the lower part of a base frame 41 which is attached to the stand 4 so as to be vertically adjustable, and the frame A sub-frame 44 is arranged in parallel above the frame 41, and a printing section 45 is placed between the frames 41 and 44.
In addition, a label sheet guide section 46, a label sheet driving motor 47, and an operation section 48 are provided in the intermediate portion of the base frame 41. Then, as shown in FIG.
5, the guide roller 49 is moved from the guide portion 46
The label sheet X supplied through the print head 5
0 and the printing roller 51, and as it passes, the printing head 50 prints a bar code or the like on each label X' on the sheet By changing the traveling direction of the label sheet X at an acute angle by the provided peeling plate 52,
The printed label X' is peeled off from the mount X'', and the label X' is sent diagonally upward with the glue side facing upward.The mount X'' from which the label X' has been peeled is It passes between the feed roller 53 and the presser roller 54 driven by the motor 47 and is wound up by the winding section 43 . Here, the printing unit 45 is disposed below the conveyor 20 and directly below the terminal end of the center belt 35, and the printed label X' is placed on the product conveyor 20.
It is sent towards void A at 0.

Furthermore, the label transfer device 60 has second and third
As shown in the figure, the printing section 45 of the label issuing device 40 is located below the product conveyor 20.
A base plate 61 is installed in front of the side frames 21 and 22 of the conveyor 20, and a hollow box-shaped intake box 62 is installed on the plate 61. an intake cylinder 63 whose portion protrudes toward the printed portion 45; and a base plate 61.
The intake blower 64 is attached to the back surface of the intake box 62 and sucks out air from the intake cylinder 63. The intake cylinder 63 is
The base end located inside the intake box 62 is fixed to a shaft 65, and by rotation of the shaft 65, the head shown by the solid line in FIG. The suction pipe 63 is swingable within a range up to the label pasting position, and as shown enlarged in FIGS. A suction head 66 is swingably attached via a pin 67. Here, this suction head 66
When the intake pipe 63 is in the label receiving position shown by the solid line in FIG. 3, the projections 66 provided on both sides
Labels X' whose postures are regulated by posture regulating members 68, 68 fixed to the upper surface of the intake box 62, and whose label suction surface 66c is sent diagonally upward from the printing section 45 of the label issuing device 40. It is arranged along the sending direction. Further, at the attachment position, the suction surface 66c protrudes somewhat from the upper surface of the belt of the product conveyor 20. Furthermore, a solenoid 69 for swinging the intake cylinder 63 via a shaft 65 is mounted on a bracket 70 on one side of the base plate 61, as shown in FIG.
provided through. This solenoid 69
When the rod 69a is energized, the rod 69a moves backward to rotate the shaft 65 in the direction a (see FIG. 3) via the connecting member 71 and the arm member 72, and
When the solenoid 69 is de-energized, the connecting member 71 is pulled back by the return spring 74 mounted between the connecting member 71 and the spring receiving member 73, thereby rotating the shaft 65 in the direction opposite to a.

Note that a label locking member 75 is attached to the head of the intake cylinder 63.
is fixed to prevent the label X' received from the label issuing device 40 from slipping off the suction surface 66c of the suction head 66, as shown by the chain line in FIG.

Further, a product detection sensor 77 is attached to one side frame 21 via an attachment member 76 at a predetermined position upstream of the vacant space A on the product conveyor 20 .

Next, the operation of the above embodiment will be explained.

The product Y that has been packaged and weighed and priced on the upstream side of the packaging, weighing and pricing system is delivered to the product transport conveyor 20 in the label pasting machine 10, and transported forward (in the direction C in Figure 2) by the conveyor 20. transported. In parallel with this, the label pasting machine 10
In the label issuing device 40 in , the printing head 50 in the printing unit 45 prints a barcode etc. indicating the price of the product Y on the label X' on the label sheet
X' is peeled off from the backing paper X'' and sent diagonally upward from the printing section 45 with the adhesive side facing upward.
At this time, in front of the printing unit 45, the suction cylinder 63 of the label transfer device 60 is waiting at the receiving position shown by the solid line in FIG. Part 6
8 and 68, the suction surface 66c is held in a position along the label X' sending direction. Therefore,
The label X' sent out from the printing section 45 of the label issuing device 40 is smoothly transferred onto the suction head 66. In this case, the inside of the intake cylinder 63 is communicated with the inside of the intake box 62, and the air inside the box 62 is sucked out by the blower 64 to be in a negative pressure state, so that the label on the suction head 66 is
A suction force is applied to X' through the slits 66a, .

After that, when the product Y is transported to a predetermined position by the conveyor 20, the sensor 77 detects this and the solenoid 6 in the label transport device 60 is activated.
9 is energized. Therefore, the rod 69a of the solenoid 69 moves backward, and the shaft 65 is rotated in the direction a via the connecting member 71 and the arm member 72.
As a result, the suction tube 63 is swung to the pasting position as shown by the chain line in FIG. 3 while holding the label X' on the suction head 66.

However, the suction head 66 holding the label
When it comes into contact with the back surface of the transported product Y, it will hit the back surface from an oblique direction, but as shown by the solid line in Figure 6, the direction of the product transport received from the product Y at the moment of contact is shown by the solid line in Figure 6. The product Y is swung along the back surface of the product Y by the force of , and the weight of the product Y, and the product Y is pushed up as shown by the chain line while remaining along the back surface. Furthermore, even if the back surface of the product Y is not horizontal, the suction head 6
6 swings along the back surface of the product Y.

As a result, the entire adhesive surface of the label X' held by the suction head 66 is evenly pressed against the back surface of the product Y, and the label X' is reliably affixed to the back surface of the product Y.

(Effects of the invention) As described above, according to the invention, in the label transfer device of a label pasting machine that affixes a label with a barcode etc. printed on the back of a product, the suction head provided at the tip of the suction cylinder Because the suction head contacts the back of the product in an oblique direction, or the position of the label on the back of the product is not horizontal, or the position of the label on the back of the product is Even if the product is not at the center of gravity and tilts when pushed up by the suction head, the suction surface will automatically swing along the back side of the product. This allows the label to be pressed onto the back of the product with even force, making it possible to reliably attach the label. Furthermore, since the suction head is regulated to an optimal label receiving posture at the label receiving position, the label can be transferred smoothly and reliably from the label issuing device to the suction head.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of a label pasting machine to which the present invention is applied, FIG. 2 is an enlarged plan view of the same pasting machine, and FIG. FIG. 4 is an enlarged side view of the essential parts of the label transfer device, FIG. 5 is an enlarged plan view of the essential parts, and FIGS. 6 and 7 are essential points for explaining the functions of the embodiment. FIG. 10...Label pasting machine, 20...Product conveyor, 40...Label issuing device, 60...Label transfer device, 62...Intake box, 63...Intake cylinder, 64...Intake blower, 66...Adsorption Head, 66a...Slit, 68...Posture regulating member.

Claims (1)

[Scope of utility model registration request] A label transfer device included in a label pasting machine, which includes a product conveyor with a blank space provided at a predetermined position, and a label issuing device located below the conveyor for printing and issuing a label to be pasted on the product. The suction head comprises an intake blower, an intake box from which internal air is sucked out by the blower, an intake cylinder communicating with the box, and a suction head having a slit provided at the tip of the intake cylinder,
The suction cylinder swings to move the suction head to a label receiving position where it receives the label sent out from the label issuing device and to a pasting position where the label is pasted onto the back side of the product on the conveyor through the empty space. The suction head is configured to be able to swing freely relative to the suction cylinder, and is provided with a posture regulating member that restricts the suction head to a predetermined label receiving posture at the label receiving position. A label transfer device in a label pasting machine, characterized in that: