JP3068454U - Cutting machine for printing machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] After performing desired printing on a running label tape, it can be cut continuously continuously at regular lengths, and furthermore, wear and damage of the cutting edge during cutting. Provided is a cutting device for a printing machine which can be used for a long period of time without any trouble. SOLUTION: The cutting device for a printing machine for continuously cutting a long label tape A on which a label is printed, at a constant length, in a direction orthogonal to the running direction of the running label tape A. Blade 51 driven by a rotating shaft 50 extending in a direction, and a vibrator 5 facing with a width corresponding to the blade 51
2 and a vibration generator 5a having an oscillator 53. The vibration generator 5a is connected to the body member via the elastic body 54 so that the end face of the oscillator 52 enters the rotation locus of the rotary blade body 51. Supported and running label tape A
Is pressed linearly over the entire width of the end face of the vibrator 52 by the rotating blade body 51 at regular intervals, and the linearly pressed portion is instantaneously linearized by heat generated based on ultrasonic vibration. High heat cutting.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The idea is to produce desired labels (tags) by printing letters and symbols, such as washing marks, prohibition marks, manufacturers, serial numbers, product numbers, and other trade marks, on specified pieces of paper or cloth. The present invention relates to a cutting device for a printing machine which is suitably used in a printing machine which performs printing.

[0002]

[Prior art]

 Conventionally, many printing machines as described above have been proposed. The basic structure of the printing machine is as follows: a label reel on which a label tape is wound, a feed unit for pulling out the tape from the reel and running, and a label unit. It has a printing section for printing characters and symbols on the labeling tape, and a tape cutting section for cutting the label tape on which the characters and symbols are printed at predetermined lengths.

[0003] The printing section includes a printing head and a platen roller which are arranged so as to sandwich the label tape from both sides, and a feeding reel and a winding reel on which a carbon tape is wound. Then, the tip of the carbon tape pulled out from the reel on the feeding side is fixed to the reel on the winding side via the print head, and the carbon tape is pulled out from the reel on the reeling side by driving rotation of the reel on the winding side to run at a constant speed. On the other hand, the label tape is pulled out from the label reel by driving the feed unit, and the tape is run at a constant speed. At this time, the label tape passes between the carbon tape and the platen roller, and during this passage, the print head is operated to print characters and symbols on the label tape.

[0004] The tape cutting section includes a fixed blade extending in a direction perpendicular to the running direction of the label tape, and a movable blade that moves up and down so as to mesh with the blade. Label tapes are cut continuously at fixed lengths.

[0005]

[Problems to be solved by the invention]

 By the way, the cutting of the label tape performed in the tape cutting section as described above is due to the shearing action associated with the engagement between the fixed blade and the movable blade, and the movable blade is entirely covered with the label tape through the entire blade surface. As a result, an extremely large shearing load is applied to each of these blades, so that the driving device for moving the movable blade up and down is enlarged, and the fixed blade and the movable blade are moved. There are many drawbacks, such as severe wear and damage of each cutting edge on the blade, requiring the polishing of the cutting edge in a very short period of time, and shortening the service life of the fixed blade and the movable blade.

[0006] Therefore, the shearing force can be set small by inclining the movable blade so that the movable blade gradually meshes with the fixed blade to give a clearance angle at the time of engagement. In this case, the label is used. There is a problem that the tape is cut diagonally because the tape is running continuously. To solve this problem, the running of the continuously running label tape may be temporarily stopped at the time of cutting, but this causes the following new problem.

That is, if the running of the label tape is temporarily interrupted when the tape is cut, the printing operation in the printing unit must also be interrupted. However, if the operation is interrupted in the middle of printing, the printed characters and symbols will be misaligned, and accurate and beautiful printing cannot be expected. Therefore, it is necessary to stop the running of the label tape only at the tape cutting section while continuing the running of the label tape at the printing section.In this case, the label tape is loosened before the tape cutting section. Therefore, when the running at the cutting section is restarted, the label tape must be sent to the tape cutting section again with the slack of the label tape removed, and a feeding mechanism with a special structure is required for that. In addition, if the label tape is loosened just before the cutting section, it is extremely difficult to maintain accurate synchronization between the printing section and the cutting section, and sensing (cueing at the time of cutting) is performed at the cutting section. Problems such as the necessity of a new sensor are required.

[0008] This invention has been made in view of the above-mentioned problems, and after performing desired printing on a running label tape, it can be cut continuously continuously at regular lengths. Further, there is provided a cutting device for a printing machine which does not wear or damage the cutting edge at the time of cutting and can withstand long-term use.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a cutting device for a printing machine according to the present invention is a cutting device for a printing machine for continuously cutting a long label tape on which a print is made at regular lengths. A rotating blade driven by a rotating shaft extending in a direction perpendicular to the running direction of the label tape to be driven, and a vibration generator having a vibrator and an oscillator facing each other with a width corresponding to the blade. The vibration generator is supported by the body members through elastic bodies so that the vibrator end face enters the rotation locus of the rotary blade body, and the running label tape is rotated by the rotary blade body at fixed lengths. It is characterized in that the tape is cut by pressing against the end face of the oscillator.

[0010]

[Action]

 According to this invention, when the set position (near the printing position) of the running label tape reaches the vibrator of the vibration generator, the rotating blade driven and rotated moves the label tape across the entire width. It is pressed against the end face of the vibrator in the same manner. At this time, since the vibrator oscillates at an ultra-high speed through the oscillator and oscillates the ultrasonic vibration, the linearly pressed portion of the label tape pressed against the oscillator has an ultra-high molecular force between the molecules. High heat is instantaneously cut by heat generated by sonic vibration.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing a printing machine using the cutting device according to the present invention, FIG. 2 is an enlarged partially cutaway side view of the cutting device, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof.

In each of the drawings, 1 is a label reel on which a long label tape A made of cloth or paper is wound, 2 is a feed unit for pulling out the label tape A from the label reel 1, and 3 is a feed unit. A brake unit 4 for applying a braking force to the take-up of the label tape A by the feed unit 2 is disposed between the feed unit 2 and the brake unit 3, and is used for a label that is drawn from the label reel 1 and travels. A printing unit 5 for printing characters and symbols on the tape A, a label tape cutting device 5 of the present invention, and a label tape take-up mechanism 6 attached to the cutting device 5 are provided. In the figure, reference numeral 7 denotes a label storage portion disposed on the lower side of the travel of the label tape A than the cutting device 5.

The feed unit 2 includes a feed roller 20 driven by a motor (not shown), and press rollers 21 and 21 for pressing the label tape A against the roller 20. When the label tape A is sandwiched between the press roller 20 and the holding rollers 21 and 21, the label tape A is drawn out from the label reel 1 and run as the feed roller 20 is driven and rotated. The holding rollers 21 and 21 are rotatably supported by a support frame 22, and the support frame 22 is attached to a support rod 23 which can swing vertically. By retreating upward, the press rollers 21 and 21 are separated from the feed roller 20 to enable the label tape A to be sandwiched therebetween.

The braking unit 3 includes a brake roller 30 having a given resistance to rotation, a holding roller 31 capable of being detached or swinging and retracting, and a guide roller 32. When the label tape A pulled out from the label reel 1 is sandwiched between the brake roller 30 and the press roller 31 via the guide roller 32, a constant braking force is applied to the drawer, and the feed is performed. A constant tension is always applied to the label tape A traveling between the section 2 and the braking section 3. The resistance given to the rotation of the brake roller 30 is configured to be arbitrarily adjusted by a dial (not shown).

The printing unit 4 includes a print head 40 that can be moved up and down and a platen roller 41 that can rotate freely, and a feeding roller that has a carbon tape B wound thereon. A reel 42 and a take-up reel 43 for drawing and winding the carbon tape B from the pay-out reel 42 are provided. The take-up reel 43 is operatively connected to a drive pulley 44 driven by a motor (not shown). The carbon tape B on each of the reels 42, 43 is held down by pressing rollers 45, 45 so as not to be loosened. It is configured to press elastically with.

The cutting device 5 includes a single elongated strip-shaped rotary blade body 51 fixed to a rotary shaft 50 extending in a direction perpendicular to the running direction of the label tape A; A vibration generator 5a having a vibrator 52 and a vibrator 53 facing each other with a corresponding width. The vibration generator 5a is supported by the body member via the elastic body 54 so that the end face of the vibrator 52 enters the rotation locus of the rotary blade body 51. Each time, the rotary blade body 51 is pressed linearly on the end face of the vibrator 52 over the entire width. At this time, since the ultrasonic vibration is emitted from the vibrator 52, heat is generated between the molecules at the linear pressing portion of the label tape A based on the ultrasonic vibration, and the label tape A is instantaneously linearly formed. High heat cutting.

On the other hand, since the cutting device 5 has a weak label sending function after cutting, the cutting device 5 is provided with a label tape A sending mechanism 6 including a pair of rollers and the like. The sending mechanism 6 includes a pair of upper and lower rotating shafts 60 and 61 extending in a direction perpendicular to the traveling direction of the label tape A. The lower rotating shaft 60 is driven by a motor 62 and has a plurality of receiving rollers. 63 are inserted and fixed at appropriate intervals, the upper rotating shaft 61 is freely rotatably mounted on the shaft, and a ring-shaped rubber roller 64 opposed to each receiving roller 63 with an abutment or a small gap therebetween is inserted. Fitted and fixed.

The label storage unit 7 includes a mounting body 70 having a vertically extending guide rod 71, a support 72 supported by the guide rod 71 so as to be able to move up and down, and a label receiver fixed to an upper part of the support 72. The labels are stored by successively stacking the labels finished by cutting with the tape cutting device 5 on the receiving plate 73 while lowering the receiving plate 73. It should be noted that an elevating mechanism for elevating and lowering the support 72 may be appropriately known, for example, a rack and pinion, a piston device, or the like.

Next, the operation of the above configuration will be described. First, prior to the start of use, the press rollers 21 and 21 of the feed unit 2 and the press roller 31 of the brake unit 3 are raised and retracted, and the print head 40 of the printing unit 4 is raised and retracted, so that the travel path of the label tape A is moved. And secure the space to be. In this state, the label reel 1 is loaded on the support section, and the label tape A drawn from the reel 1 is wound around the brake roller 30 via the guide roller 32 of the braking section 3, and is wound around the guide roller 30. The pressing roller 31 is moved downward and pressed, and furthermore, the label tape A is set by pressing the feeding roller 20 of the feed unit 2 by moving the pressing roller 21 and 21 downward through the above-described travel path space.

Next, with the print head 40 of the printing unit 4 raised and retracted, the reel 42 for feeding is mounted on the support unit, and the pressing roller 45 is pressed down so that the carbon tape B is not loosened. The carbon tape B pulled out from the reel 42 for feeding is passed through the space between the print head 40 and the platen roller 41, is fixed to the take-up reel 43, is pressed by the pressing roller 45, and the carbon tape B is set. In addition, since the label tape A runs between the print head 40 and the platen roller 41 as described above, the carbon tape B is substantially between the label tape A and the print head B. I will pass.

In this way, when the feed roller 20 of the feed unit 2 is driven to take out the label tape A by the roller 20 and the pressing rollers 21, 21, the tape A is moved from the label reel 1 to the braking unit 3. The brake roller 30 is pulled out while applying a braking force by the brake roller 30, and travels at a set speed from the brake unit 3 toward the feed unit 2 under a constant tension at all times. On the other hand, when the take-up reel 43 is driven and rotated by the drive pulley 44, the carbon tape B is pulled out from the pay-out reel 42, and is sequentially passed through the print head 40 and the platen roller 41 to the take-up reel 43. While running between the print head 40 and the platen roller 41, characters and symbols are printed on the label tape A via the carbon tape B. At this time, as described above, the travel of the label tape A is performed only by the feed section 2 and has no relation to the travel of the carbon tape B. Therefore, when the printing operation is not performed, the print head 40 is moved to the label tape. The traveling of the carbon tape B can be interrupted by moving up and down so as to be separated from A, and wasteful consumption of the carbon tape B can be eliminated.

Next, the label tape A on which characters and symbols are continuously printed at regular intervals as described above is supplied to the cutting device 5 by feeding the feed unit 2, and the tape A is supplied at regular intervals. Cut continuously. This cutting is performed by pressing the label tape A against the end face of the vibrator 52 of the vibration generator 5a by using the rotary blade body 51. The cutting position is set near the printing position of the running label tape A (each printing section). (Blank position in the middle) reaches the end face of the vibrator 52, the rotating blade body 51 being driven and rotated momentarily (0.1 to 0.2 seconds) makes the label tape A linear in the entire width. The end face of the vibrator 52 is pressed. At this time, since the vibrator 52 oscillates at an ultra-high speed by the oscillator 53 and oscillates the ultrasonic vibration, the linear pressing portion of the label tape A pressed against the oscillator 52 is generated by the heat generated based on the intermolecular vibration. It cuts high heat instantaneously in a line.

The label finished by the tape cutting by the cutting device 5 is transferred between the receiving roller 63 and the rubber roller 64 of the label sending mechanism 6, and the label is rotated by the driving rotation of the receiving roller 63. Along with this, it is sent out onto the receiving plate 73 of the label storage section 7 and is sequentially stored in a stacked state. The sending mechanism 6 receives the tape before the label tape A is cut by the cutting device 5, but the sending action is very weak, and the sending operation is performed so that the rubber roller 64 slips. That is, the label tape A is sent out by pressing the tape A against the rotatable receiving roller 63 with the freely rotatable rubber roller 64, and the label tape A is supplied to the cutting device 5 (tape running). It is configured to have no effect on

[0024]

[Effect of the invention]

 As described above, according to the present invention, after the desired printing is performed on the running label tape, it can be continuously and accurately cut into fixed lengths. Since the cutting is performed without stopping or loosening the running in the cutting device, accurate and beautiful printing can be performed without misalignment of printing in the printing unit, and sensing (cutting) in the cutting unit. The tape can be cut reliably at an accurate position without the need for a sensor for time cueing, etc., but the tape cutting involves the engagement between the fixed blade and the movable blade as in the past. It is not a shearing effect, but a high-temperature cut is instantaneously generated by heat generated by vibration between molecules due to the oscillation of ultrasonic vibration. No wear and damage, with the practical effect that can withstand long-term continuous use.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a printing machine using the cutting device of the present invention.

FIG. 2 is an enlarged partially cutaway front view of the cutting device.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of the same. A Label tape 5 Cutting device 5a Vibration generator 50 Rotating shaft 51 Rotating blade 52 Vibrator 53 Oscillator 54 Elastic body

Claims (1)

[Utility model registration claims] 1. A cutting device for a printing machine for continuously cutting a printed long label tape at predetermined lengths, wherein the cutting device extends in a direction perpendicular to a running direction of a running label tape. A rotating blade driven by a rotating shaft, and a vibration generator having a vibrator and an oscillator facing each other with a lateral width corresponding to the blade, wherein the vibrator has a vibrator end face which rotates the rotating blade. The label tape is supported by an airframe member via an elastic body so as to enter into the trajectory, and the running label tape is configured to be rotated by a fixed length and pressed against the oscillator end face to cut the tape. A cutting device for a printing machine, characterized in that: