JPH10273124A - Label printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label printer by which the printing position on labels can be easily adjusted and whose device can be small in size. SOLUTION: A slide roller 40 is connected to a belt-form base board transferred and it is rotatably supported by a U-shaped frame 42 and further, a pair of slide rods 44 are attached to the right side face of the frame 42 in the drawing 2. The slide rods are inserted in the holes 48 formed parallelly to the transfer direction of the belt-form base board on the receive base 30 so as to freely slide. A bolt 50 is inserted at right angles against the hole 48 at the lower end of the receive base 30 in the drawing. In this way, when the bolt 50 is loosened, a printing position adjuster 32 can be slid along the holes 48, 48. When the bolt 50 is fastened, the slide rod 44 comes into contact with the front end of the bolt 50 and the printing position adjuster 32 is fixed to the receive base 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label printing apparatus and, more particularly, to a label printing apparatus having a printing device in the middle of a transport path for winding a supply reel onto a take-up reel.

[0002]

2. Description of the Related Art In a label printing apparatus for printing on a label temporarily attached to a band-shaped backing sheet (see FIG. 3) at regular intervals, a band-shaped backing sheet wound on a supply reel is wound by a take-up reel. A printing unit is provided in the middle of the transport path from the supply reel to the take-up reel. As shown in FIG. 4, the printing unit 3 includes a printing head 5 that can move forward and backward with respect to the label 4.
Is provided, and printing is performed on the label 4 by pressing the print head 5 against the receiving table 7 via the band-shaped backing paper 6. In order to print at a desired position on the label 4, it is necessary to adjust the printing position.

For this reason, in the conventional label printing apparatus 1, the printing section 3 is slid to adjust the printing position.

[0004]

However, when the printing unit 3 is moved as in the conventional label printing apparatus 1,
An error occurs in the distance between the print head 5 and the receiving table 7. The error causes a change in the printing pressure between the print head 5 and the label 4. That is, if the distance between the print head 5 and the receiving table 7 is long, the printing pressure is too weak, and the print sticking becomes poor. Conversely, if the distance between the print head 5 and the cradle 7 is short,
The printing pressure is too high, and the label 4 is dented.
In such a case, the distance between the print head 5 and the cradle 7 must be finely adjusted, which requires a long time for the adjustment and lowers the working efficiency.

Further, since a space for moving the printing unit 3 is required, there is a disadvantage that the apparatus becomes large.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a label printing apparatus that can easily adjust a printing position on a label and can reduce the size of the apparatus.

[0006]

According to the present invention, in order to achieve the above object, a strip-shaped backing sheet on which labels are temporarily attached at predetermined intervals is transferred between a printing head and a receiving stand, and the printing head forms a label. In the label printing device for printing, a slide rod provided slidably in the receiving table along the feed direction of the band-shaped mount, provided at the tip of the slide rod, engaging the band-shaped mount, and changing the transfer direction thereof. A printing position adjusting means including a roller for changing and a fixing means for positioning the slide rod is provided, and by sliding the slide rod for a predetermined length with respect to the receiving table, a print position for printing on a label by the print head is determined. It is characterized by adjusting.

According to the present invention, when the printing position on the label is adjusted, the slide rod is slid with reference to the receiving table by the adjustment amount of the printing position to change the transport distance of the band-shaped mount. This allows accurate printing at a desired position on the label. In this case, since the slide rod is based on the cradle, the printing position can be accurately changed. For example, when the printing position is shifted in the traveling direction of the band-shaped mount, the slide rod is slid in the traveling direction. Then, the belt-shaped backing sheet is pulled in the traveling direction due to the movement of the roller in the traveling direction, the transport distance becomes longer, and printing is performed at the desired position. vice versa,
If the printing position is shifted in the opposite direction of the belt mount,
The slide rod is slid in the direction opposite to the traveling direction. Then, the belt-shaped backing sheet is rewound on the supply reel due to the movement of the roller in the direction opposite to the traveling direction, the transport distance is shortened, and printing is performed at the desired position.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a label printing apparatus according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall configuration diagram of a label printing / pasting apparatus to which the label printing apparatus of the present invention is applied.

[0009] The label printing and sticking apparatus 10 mainly comprises
A supply reel 16 for feeding a roll-shaped backing sheet 14A having a large number of labels 12 (see FIG. 3) temporarily attached thereto at a predetermined pitch to a transport path, a printing unit 18 for printing on the labels 12,
A print position adjusting means 32 for adjusting a print position;
2 is peeled off from the band-shaped mount 14A and is attached to the object 20; and the band-shaped mount 14 from which the label 12 has been peeled off.
It comprises a take-up reel 24 for winding B and a transfer unit 26 for pulling the band-shaped backing paper 14B.

[0010] The supply reel 16 is a roll-shaped backing sheet 1.
4A is rewound and supplied to the conveyance path, and the band-shaped backing sheet 14A is prevented from loosening in the conveyance path.
Has a constant urging force in the direction opposite to the supply direction. The printing unit 18 includes a printing device main body 28 and a receiving stand 30. The printing device main body 28 is provided with a print head 36 at the tip of a piston rod 34 that is vertically expandable and contractible. For this reason, the print head 36 is
Makes a reciprocating motion with a constant stroke with respect to the cradle 30 due to the expansion and contraction.

The cradle 30 is formed of an aluminum block and is attached to a side plate 38 of the apparatus main body. A rubber plate having a thickness of about 2 to 3 mm is stuck on the upper surface of the aluminum block. Then, the piston rod 34 is extended, and the print head 36 is attached to the receiving base 3 via the band-shaped mount 14A.
By pressing the label to 0, printing is performed on the label 12 on the band-shaped backing paper 14A.

FIG. 2 is a top view showing the structure of the print position adjusting means. As shown in FIGS. 1 and 2, the print position adjusting unit 32 includes a slide roller 40, a frame 42, and a pair of slide rods 44. The slide roller 40 is engaged with the belt-shaped backing sheet 14A to be conveyed, and a projection 46 for guiding one side of the band-shaped backing sheet 14A for positioning in the width direction is formed at the upper end in the drawing.
The slide roller 40 is rotatably supported by a U-shaped frame 42, and a pair of slide rods 44 are attached to the right side of the frame 42 in FIG. 2. The pair of slide rods 44, 44
A hole 48 formed in parallel with the conveying direction of the
The bolt 50 is inserted slidably into the hole 48 at a lower end in FIG. Thus, when the bolt 50 is loosened, the printing position adjusting means 3
2 can slide along the holes 48, 48, and when the bolt 50 is tightened, the slide rod 44
0, and the print position adjusting means 32 is
Fixed to The lower slide rod 44 in FIG.
A scale 52 is provided along the transport path, and the slide rod 44 can be slid with high precision according to the adjustment amount of the printing position.

The attaching section 22 includes a peeling plate 54 and a pressing roller 56. The peeling plate 54 is formed such that the leading end is formed in an acute angle diagonally downward, and the label 12 having a greater rigidity than the belt-like backing 14A is obtained by turning and transporting the band-shaped backing 14A to which the label 12 is temporarily attached at the leading end of the releasing plate 54. It is peeled off from the band-shaped mount 14A and fed straight out in the direction of the pressing roller 56.

The pressing roller 56 is provided so that the label 12
When the label 12 is peeled off from the band-shaped mount 14A and fed out, the label 12 is pressed onto the upper surface of the article 20 conveyed by the separate conveyor 58, thereby attaching the label 12 to the article 20. The transfer section 26 has a rubber roller 60 and a nip roller 62 for nipping and transporting the band-shaped backing paper 14B. The rubber roller 60 is connected to a stepping motor 64 via a timing belt 66, and the take-up reel 24 via a round belt 68. Linked to Thus, the band-shaped backing sheet 14 from which the label 12 has been peeled off by the peeling plate 54 is conveyed while being sandwiched between the rubber roller 60 and the nip roller 62, and is taken up by the take-up reel 24. The rubber roller 60 is intermittently driven to rotate to wind up the strip-shaped backing material 14B from which the label 12 has been peeled off, thereby pulling the strip-shaped backing paper 14B and feeding the strip-shaped backing paper 14A from the supply reel 16 to the transport path, The label 12 peeled off from the band-shaped mount 14A by the plate 54 is fed out.

A sensor 70 is provided in the vicinity of the transport path between the printing unit 18 and the sticking unit 22, and detects the position of the leading end of the label 12 on the transported band-shaped mount 14A. Next, the operation of the label printing / pasting apparatus configured as described above will be described. A band-shaped backing 14A on which a large number of labels 12 are temporarily attached.
Are fed from the supply reel 16 to the conveyance path by intermittent rotation of the rubber roller 60, and a plurality of guide rollers 15, 15.
And is conveyed to the printing unit 18. When the label 12 is conveyed onto the cradle 30, the conveyance is stopped once, the piston rod 34 is extended, and the print head 36 is moved to the band-shaped mount 14.
The label 12 is pressed against the cradle 30 via A, and the label 12 is printed. When printing is completed, the piston rod 34
Then, the print head 36 returns, and the band-shaped backing paper 14A is transported again.

The band-shaped backing 14A printed on the label 12
Are a slide roller 40 and a plurality of guide rollers 15, 1
5 and are conveyed to the sticking section 22. In the middle of the transport path, the sensor 70 detects the position of the leading end of the label 12. The band-shaped backing sheet 14A conveyed to the attaching section 22 is turned and conveyed at the tip of the peeling plate 54, so that the band-shaped backing sheet 1A is conveyed.
The label 12 peeled from 4A is fed out. The fed-out label 12 is pressed and adhered by the pressing roller 56 to the adhered object 20 transported by the separate conveyor 58.
On the other hand, the band-shaped backing sheet 14B from which the label 12 has been peeled is taken up by the take-up reel 24 via the rubber roller 60 and the nip roller 62.
It is wound up.

Next, a method for adjusting the printing position will be described. In the label printing, as shown in FIG. 3, when the printing position B is shifted from the desired position A in the advancing direction (arrow in FIG. 3), the bolt 50 of the printing position adjusting means 32 is loosened and the slide rod 44 is moved. The slider 52 is slid to the left in FIG. After the slide rod 44 is slid, the bolt 50 is tightened and fixed to the cradle 30 at that position. Thereby, the slide roller 40 slides to the left in FIG. 1, so that the band-shaped mount 14A is pulled in the traveling direction, and the transport distance from the printing position of the band-shaped mount 14A to the tip of the peeling plate 54 is increased. As a result, the printing position moves from the front end side of the label 12 to the rear end side, and printing is performed at a desired position A.

Conversely, when the printing position C is shifted from the desired position A in the direction opposite to the traveling direction (arrow in FIG. 3), the bolt 50 of the printing position adjusting means 32 is loosened and the slide rod 44 is moved.
2 is slid to the right in FIG. After the slide rod 44 is slid, the bolt 50 is tightened and the pedestal 3
Fix to 0. As a result, the slide roller 40 is moved from FIG.
By sliding in the middle right direction, the band-shaped
A is rewound on the supply reel 16, and the transport distance from the printing position of the band-shaped backing sheet 14A to the tip of the peeling plate 54 is reduced. As a result, the printing position moves from the rear end side of the label 12 to the front end side, and printing is performed at a desired position A.

As described above, in the present embodiment, the label 12 is simply moved by sliding the slide roller 40.
Can be printed at a desired position. Therefore, the printing position can be easily adjusted and the working efficiency can be improved as compared with the case where the conventional printing head 36 is moved. Further, unlike the related art, a space for moving the printer main body 28 is not required, so that the size of the apparatus can be reduced.

Further, in the present invention, with reference to the cradle 30 correctly positioned with respect to the print head 36,
Since the slide rod 44 is moved by the adjustment amount of the print position, the print position can be adjusted with high accuracy.

[0021]

As described above, according to the label printing apparatus of the present invention, only by sliding the roller,
By changing the transport distance, printing can be performed at a desired position on the label. Therefore, since the printing position can be easily adjusted, the working efficiency can be improved.

Further, since a space for moving the print head is not required, the size of the apparatus can be reduced. Furthermore, in the present invention, the slide rod is moved by the adjustment amount of the print position with reference to the receiving table correctly positioned with respect to the print head, so that the print position can be adjusted with high accuracy. .

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a label printing / pasting apparatus to which a label printing apparatus of the present invention is applied.

FIG. 2 is a top view illustrating a configuration of a print position adjusting unit.

FIG. 3 is an explanatory view illustrating details of a band-shaped backing to which a label is temporarily attached.

FIG. 4 is an explanatory view illustrating a conventional label printing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Label printing / pasting apparatus 12 ... Label 14A ... Band-shaped board to which label was temporarily attached 14B ... Strip-shaped board from which label was peeled 18 ... Printing part 28 ... Printer body 30 ... Receiving table 32 ... Printing position adjusting means 34 ... Piston rod 36 Print head 40 Slide roller 44 Slide rod 48 Hole 50 Bolt 52 Scale

Claims (2)

[Claims] 1. A label printing apparatus for printing a label on a label by transferring a band-shaped backing sheet to which a label is temporarily attached at a predetermined interval between a printing head and a receiving base, and printing the label on the receiving base. It comprises a slide rod slidably provided in the feed direction, a roller provided at the tip of the slide rod, engaging with the band-shaped mount, and changing the transfer direction thereof, and fixing means for positioning the slide rod. A label printing apparatus comprising a printing position adjusting means, wherein a printing position for printing on a label by the printing head is adjusted by sliding a slide rod of a predetermined length with reference to the receiving table. 2. A label printing apparatus according to claim 1, wherein said slide rod is provided with a scale for measuring a slide distance.