JP3463321B2 - Label sticking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking device for sticking labels one after another on the surface of a moving sheet.

[0002]

2. Description of the Related Art When a treatment layer such as an adhesive is formed on the surface of a planar body such as a printed circuit board, it is sometimes desired to partially avoid the formation of the treatment layer on the printed circuit board.
Therefore, a masking tape or the like is attached to the adhesive film, and the adhesive film with the masking tape is attached to the printed circuit board. Then, after that, the masking tape is removed to expose the surface of the printed circuit board on which the adhesive is not formed.

It is also widely practiced to attach various display labels to the surface of various sheet bodies. Since the label needs to be accurately attached to a predetermined position on the planar body, the label is generally attached and fixed. Further, the label used in the attaching step is pre-cut to a size to be attached to each sheet, and is often attached manually.

[0004]

However, since the above-mentioned conventional label sticking method is carried out manually, it not only takes a lot of man-hours and productivity is poor, but also the dimensional accuracy of sticking is low. It is also not suitable for mass production. In view of the above conventional problems, the present invention aims to provide a highly productive label sticking device capable of sticking labels one after another to a planar body that is moved by a conveying device or the like. .

[0005]

The present invention is a label sticking device for sticking a label having a sticking surface on its back surface to the surface of a moving sheet one by one, and continuously advancing the sheet. A feeding unit for feeding a band-shaped label film showing the label sticking surface to the sticking roller; a sticking roller for sticking a label to the sheet by receiving the label film; It has a drive unit for driving the supply drum and the sticking roller, and the sticking roller moves in the traveling direction of the planar body in synchronization with the progress of the planar body, and at the same time, sticks the label. The label sticking device is characterized in that the sticking surface rotates and traverses while pressing the sticking surface against a planar body, and reciprocates to return to its original position after sticking the label.

The most remarkable thing in the present invention is that
A transport unit for advancing the planar body, a sticking roller that moves in synchronization with the progress of the planar body and rotates and traverses while pressing the label sticking surface against the planar body, and a band-shaped label film is stuck. And a supply drum for supplying the fixing roller. Then, the sticking roller returns to the origin after sticking the label and performs the reciprocating motion to perform the sticking motion again.

Further, it has a drive unit for driving the above-mentioned sticking roller and supply roller. The drive unit may be provided separately for the sticking roller and the supply roller, or may be shared with the drive unit for the transport unit. This is because the shared use of the transport unit makes it very easy to synchronize the movements of the sheet and the sticking roller.

The label film may be one in which perforations or the like are provided so that the label film can be cut, and the label may be connected in a strip shape, or the cut label may be intermittently held on a continuous base film. . Further, the supply roller may be moved together with the sticking roller.

[0009]

[Operation and effect] The sticking roller moves in synchronization with the progress of the sheet when sticking the label. Therefore, at this time, there is no relative motion between the sheet and the sticking roller in the traveling direction of the sheet, and the sheet remains stationary with respect to the sticking roller. Therefore, the sticking roller is equivalent to sticking a label while rotating and traversing a stationary planar body, and sticking a label accurately without causing displacement in the traveling direction. You can

Further, the sticking roller returns to the original position (first position) after sticking the label, and moves the sheet again in the traveling direction of the sheet to stick the label. Therefore, labels can be attached one after another to the sheet-like bodies conveyed by the conveying section. The label for sticking can be continuously supplied from the supply roller as a strip-shaped label film.

As described above, according to the present apparatus, the labels can be attached to the conveyed sheet material one after another with high precision without relying on human hands, so that the productivity is greatly improved.
Consider, for example, a case where the sheet is an adhesive film having an adhesive layer formed on a base film and the label is a masking tape for masking the adhesive layer. In this case, this apparatus can form a masked adhesive film in which the adhesive film is partially masked with a masking tape. By using this adhesive film with a mask, the adhesive layer with a mask can be transferred to a substrate such as a printed wiring board.

That is, the adhesive layer film is adhered to the substrate,
After that, if the base film and the masking tape are removed, an adhesive layer in which no adhesive is formed is formed only on the masking tape adhering portion on the substrate. As described above, according to the present invention, a planar body that is moved by a carrier device or the like is
It is possible to provide a high-productivity label sticking device that can stick labels one after another.

[0013]

【Example】

Embodiment 1 FIG. 1 shows a label sticking apparatus according to an embodiment of the present invention.
~ It demonstrates using FIG. In this example, as shown in FIGS. 1 and 5, a masking tape 81 is formed on the adhesive film 12 for forming adhesive layers on the upper and lower surfaces of the printed circuit board 85.
The present invention relates to a label sticking device 10 for sticking. That is, the label sticking device 10 sticks the masking tape 81 as a label having the sticking surface formed on the back surface one after another to the surface of the adhesive film 12 as a planar body that moves in the direction of the arrow.

As shown in FIG. 1, the label sticking apparatus 10 has a feeding section 30 for continuously advancing the adhesive film 12 and a sticking roller for sticking a strip-shaped label film 80 showing the label sticking surface. Supply drum 25 for supplying 20
A sticking roller 20 that receives the supply of the label film 80 and sticks a masking tape 81 on the adhesive film 12.
And a sticking motor 41 as a drive unit for driving the supply drum 25 and the sticking roller 20.

The attaching roller 20 moves in the advancing direction of the adhesive film 12 in synchronization with the advancing of the adhesive film 12 together with the supply drum 25, and at the same time, the masking tape 8
While pressing the adhesive surface of No. 1 against the adhesive film 12, the adhesive film 12 is rotated and traverses, and a reciprocating motion is performed to return to the origin after the label is adhered.

Each of these will be described in detail below. In this example,
As shown in FIGS. 1 and 5, the adhesive film 12 is pressed by the pressure roller 31 onto the upper and lower surfaces of the printed circuit board 85 conveyed by a conveyor (not shown), and the adhesive layer 86 ( It is the label sticking apparatus 10 which comprises a part of apparatus which forms FIG. 5).

Then, a masking tape 81 is previously stuck to the adhesive film 12 by the label sticking device 10, and the masking tape 81 is adjacent to the printed circuit board 85.
By covering the space between the end portions 851 and 852, the adhesive is prevented from being transferred to the end portions 851 and 852. The adhesive film 12 is formed by forming an adhesive layer on the base film 121 and adhering the protective film 122 thereon.
22 is previously removed before attaching the masking tape 81 (FIG. 5).

As shown in FIG. 1, the label sticking apparatus 10 is composed of a pair of upper and lower label sticking apparatuses 101 and 102 which are arranged substantially symmetrically. Since the upper and lower label sticking devices 101 and 102 have the same configuration, the following description will focus on the lower label sticking device 102.

The pressure roller 31 is rotationally driven by a main motor 40 (FIG. 4), which will be described later, and the printed circuit board 85
And the adhesive film 12 are pressed together and these 8
5 and 12 are conveying rollers that convey the sheets 5 and 12 rightward in FIG.

Conveying tables 351 and 352 that reciprocate in the vertical direction are disposed above and below the pressure roller 31, and the upper and lower conveying tables 351 and 352 move in opposite directions in synchronization with each other. The transport table 35
A suction table 36 capable of sucking the adhesive film 12 and a label table 37 having the attaching roller 20 and the supply roller 25 attached thereto are attached to 1, 352.

Further, the transfer tables 351 and 352 are provided with a pinion 42 for driving the transfer tables 351 and 352 in a direction in which the transfer tables 351 and 352 are brought close to each other (a direction indicated by a solid line arrow in FIG. 1) and racks 431 and 432 which mesh with the pinion 42. . The pinion 42 is attached to the pulley 4 by the second belt 421.
It is connected to a clutch 44 with 41.

The clutch 44, as shown in FIG.
The first belt 442 is connected to the drive wheels 401 of the main motor 40. Then, by operating the clutch 44, the power of the main motor 40 can be transmitted to and cut off from the pinion 42. The main motor 40 is also connected to the pressure roller 31 via a drive belt (not shown).

Then, the main pillar 15 shown in FIG. 1 is restored so that the transport tables 351 and 352 are driven in a direction separating from each other (the direction of the broken line arrow in FIG. 1) to rapidly return the both 351 and 352 to the origin (original position). A cylinder 45 is attached.
The restoring cylinder 45 is operated only when the clutch 44 cuts off the power of the main motor 40.
It has an interlock with the clutch 44.

On the other hand, as shown in FIG. 3, a negative pressure room 362 for applying a negative pressure is formed on the back surface of the suction plate 361 of the suction table 36, and a plurality of suction ports 363 connect the adhesive film 12 to each other. Adsorb. Further, an air nozzle 46 is attached to inject air to press the adhesive film 12 toward the suction table 36 side. 1 and 3, reference numeral 47 is an adjust cylinder for adjusting the mounting position of the suction table 36 in the initial adjustment stage.

On the other hand, the label table 37 is provided with a sticking roller 20, a supply roller 25, and a sticking motor 41 for driving the both rollers 20 and 25. Further, as shown in FIG. 2, the label table 37 is driven by a tape traversing motor 49 to traverse. That is, the label table 3
7 is connected to a female screw ring 132 that is screwed onto the male screw shaft 133 of the ball screw 13, and is connected to the label table 37.
The whole can reciprocate right and left along the male screw shaft 133 of the ball screw 13.

Also, after the attaching step, the adhesive film 1
A film cutter 14 for cutting 2 is provided. As shown in FIGS. 1 to 3, the film cutter 14 can be driven by the cutter motor 141 to traverse the cutter groove 143 while rotating the rotary grindstone 142 to cut the adhesive film 12. In FIG. 1, reference numeral 311 is a film guide and reference numeral 451.
Is a rod of the restoration cylinder 45.

Next, the function and effect of the label sticking apparatus 10 of this example will be described. As shown in FIG. 1, the adhesive film 12 is sandwiched and pulled by the pressure bonding roller 31 and moves from both upper and lower directions toward the central portion. In addition, the transport table 3
51 and 352 are driven by the pinion 42 from the positions of the upper and lower ends shown in FIG. 1 and similarly move toward the central portion (position of the pressure roller 31) as shown by the solid arrow. At this time, the restoration cylinder 45 is in the open state and does not hinder the movement of the transport tables 351 and 352.

Then, the pinion 42 and the pressure roller 3
1 is driven by the same main motor 40 (FIG. 4), and the adhesive film 12 and the transport tables 351 and 35
2 moves at a constant speed (zero relative speed). Then, the adhesive film 12 is attached to the suction plate 361 by the suction port 363.
Will not be displaced from the adsorption plate 361.

Under such a condition, the sticking roller 2 is simultaneously pressed.
0 presses the masking tape 81 against the adhesive film 12, and rotates and traverses. And the adhesive film 12
When the masking tape 81 is applied up to the lateral end of the, the clutch 44 operates, the power of the main motor 40 is shut off, and the raising of the transport table 352 is stopped. At the same time, the negative pressure state of the negative pressure room 362 of the suction table 36 is released, the air nozzle 46 is also stopped, and the adhesive film 12 is separated from the suction table 36 and continues to be transported independently.

Then, the restoring cylinder 45 operates, and the transport tables 351 and 352 move rapidly in the direction of the broken line in FIG. 1 and return to the origin. At this time, since the clutch 44 is disengaged, the pinion 42 runs idly with almost no load. At the same time, the tape traverse motor 49 also reversely rotates and the label table 37 returns to the origin.

By repeating the cycle as described above, the masking tape 81 is intermittently attached to the adhesive film 12 one after another. As described above, according to the present example, the label-shaped masking tape 81 is provided on the adhesive film 12 as a planar body that is transported without relying on human hands.
The label sticking device 10 having high productivity can be provided.

[Brief description of drawings]

FIG. 1 is a side view of a label sticking device according to an embodiment.

FIG. 2 is a front view of FIG.

FIG. 3 is an enlarged view of a main part of FIG.

FIG. 4 is an explanatory diagram of a power transmission system for a pinion.

FIG. 5 is an explanatory diagram of an apparatus for forming an adhesive layer on a printed circuit board according to an embodiment.

[Explanation of symbols]

10. ． ． Labeling device, 12. ． ． Adhesive film, 20. ． ． Sticking roller, 25. ． ． Supply drum, 30. ． ． Transport section, 31. ． ． Pressure roller, 36. ． ． Adsorption table, 41. ． ． Sticking motor, 42. ． ． Pinion, 431,432. ． ． rack, 44. ． ． clutch, 45. ． ． Restore cylinder, 80. ． ． Label film, 81. ． ． Masking tape, 85. ． ． Printed board,

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Claims (2)

(57) [Claims] 1. A label sticking device for sticking labels, each having a sticking surface on the back surface, to the surface of a moving sheet one by one, and a transport unit for continuously advancing the sheet. A supply drum that supplies a band-shaped label film that exposes the label sticking surface to the sticking roller, a sticking roller that receives the label film and sticks a label to the planar body, and the supply drum and the sticking roller. The sticking roller moves in the advancing direction of the planar body in synchronism with the progress of the planar body, and at the same time, the label sticking surface is planar. A label sticking device characterized by rotating and traversing while pressing against the body, and performing reciprocating motion to return to the original position after sticking a label. 2. The sheet according to claim 1, wherein the sheet is an adhesive film having an adhesive layer formed on a base film,
The label sticking device, wherein the label is a masking tape for partially masking the adhesive layer.