JP6716378B2 - Ink ribbon cutting device and ink ribbon supply device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink ribbon cutting device and an ink ribbon supply device that divide an ink ribbon used in a printer into pieces.

In recent years, in printers using ink ribbons, printing marks remain on used ink ribbons, and in order to prevent leakage of personal information and confidential information, cutting is performed by a cutting device. When such a used roll-shaped ink ribbon is drawn into a piece by drawing the ink ribbon with a cutting device, it is desired to reduce the feeding force of the ink ribbon with a simplified rotation mechanism.

Conventionally, not only a used ink ribbon in a roll shape, but also various devices for supplying a long material in a roll shape are known. For example, as described in Patent Document 1, an outer shaft is inserted into a cavity of a tape roll, an inner shaft is inserted inside the outer shaft, and a pair of side shafts are inserted so as to sandwich both ends of the tape roll. There is known a structure in which the tape roll and the shaft are integrated and the tape roll is integrally rotatably held by the shaft.

Further, as described in Patent Document 2, one of the rotary drive units with gears installed on the thermal transfer printer side is inserted into one end of a cylindrical thermal transfer ink ribbon supply core to be integrated, and There is known a configuration in which the other rotation drive unit installed on the thermal transfer printer side is inserted into the other end of the supply core and integrated to be driven and rotated.

JP, 2005-189548, A JP, 2003-211764, A

However, in the above-mentioned Patent Documents 1 and 2, etc., a roll-shaped long object is integrated with a rotary shaft to drive the rotary shaft in rotation, and a drive mechanism is required, resulting in an increase in size. On the other hand, when a long object is rotated and supplied by pulling out without relying on the rotary drive system, since it is rotated together with the rotary shaft, a pulling force in consideration of the weight of the rotary shaft is required. Therefore, even if the rotating shaft is made lighter with resin, etc., it will have a shorter life due to rotational wear compared to metal, and if a bearing such as a bearing is used to make the life longer, it will be easier to set long rolls. However, there is a problem that the efficiency is deteriorated.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an ink ribbon cutting device and an ink ribbon supply device that supply a roll-shaped ink ribbon with a light load by a simplified rotation mechanism.

In order to solve the above-mentioned problems, the invention of claim 1 is an ink ribbon cutting device which is used in a printer to divide an ink ribbon rolled into a roll on a hollow winding core into pieces. A ribbon receiving portion for receiving, and a cutting body having at least a cutting portion for cutting while drawing the ink ribbon received from the ribbon receiving portion, and a non-rotating shaft penetrating a hollow winding core in the roll-shaped ink ribbon, And a pair of roll fixed rotating portions that are rotatable on the shaft and that rotate integrally with each other by engaging at both ends of the hollow winding core, and supply the ink ribbon in accordance with the drawing of the cutting portion. And an ink ribbon supply device that operates.

According to a second aspect of the present invention, there is provided an ink ribbon supply device that is detachably provided in an ink ribbon cutting device that is used in a printer and that turns a roll-shaped ink ribbon into a piece while drawing it into a hollow take-up core. A non-rotating shaft that penetrates the hollow winding core of the roll-shaped ink ribbon, is rotatable on the shaft, and is integrally engaged with both ends of the hollow winding core of the roll-shaped ink ribbon. It has a structure which has a pair of roll fixed rotation part which rotates.

According to the invention of claim 1, an ink ribbon which is used in a printer and is formed into a roll on a hollow winding core is made into pieces by a cutting body. A pair of roll fixed rotating parts is rotatably provided on a non-rotating shaft that penetrates the hollow winding core, and is integrally rotated by engaging with both ends of the hollow winding core by the pair of roll fixed rotating parts. By configuring the ink ribbon to be supplied in accordance with the drawing of the cutting unit, the roll-shaped ink ribbon is integrated with the pair of roll fixing and rotating units rotatable on the non-rotating shaft that penetrates the hollow winding core. Therefore, the ink ribbon can be supplied with a light load by a simplified rotating mechanism.

According to the second aspect of the present invention, the ink ribbon cutting device used in the printer for separating the roll-shaped ink ribbon on the hollow take-up core into pieces while pulling the roll-shaped ink ribbon is detachably provided. A pair of roll fixing and rotating parts are rotatably provided on a non-rotating shaft that penetrates the hollow winding core of the ink ribbon, and the pair of roll fixing and rotating parts are engaged with both ends of the hollow winding core to integrally form them. By rotating the ink ribbon and supplying the ink ribbon in response to the drawing from the ink ribbon cutting device, the ink ribbon can be supplied with a light load by a simplified rotation mechanism and the ink ribbon is cut. The cutting device can be applied to any cutting device.

1 is an overall configuration diagram of an ink ribbon cutting device according to the present invention. It is explanatory drawing of the ink ribbon supply apparatus in the ink ribbon cutting apparatus of FIG. FIG. 7 is an explanatory diagram of a relationship between an ink ribbon roll and an ink ribbon mounting portion. It is explanatory drawing of the ink ribbon roll set state in the ink ribbon supply apparatus of FIG. It is explanatory drawing (1) of the handling set of an ink ribbon. FIG. 9 is an explanatory diagram (2) of the arrangement set of the ink ribbon. It is explanatory drawing of the other structure of an ink ribbon mounting part.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an overall configuration diagram of an ink ribbon cutting device according to the present invention. FIG. 1A is an overall perspective view, and FIG. 1B is a schematic sectional view. In FIG. 1(A), an ink ribbon cutting device 11 guides a roll-shaped ink ribbon used in a printer to a ribbon receiving portion and causes the cutting portion to separate the ink ribbon into a ribbon. The ink ribbon supply device 12 is composed of a main body 13 and is placed in a placed state so as to be separable from the cutting main body 13. By making the ink ribbon supply device 12 separable from the cutting main body 13, it can be adapted to a cutting device of any mechanism. The ink ribbon supply device 12 will be described with reference to FIGS.

The cutting body 13 is formed with a ribbon receiving portion 14 to be inserted for cutting the ink ribbon, and a power switch 15A, an operation switch 15B and the like are provided on the front portion of the upper surface. A front door 16 is provided on the front surface of the cutting body 13. Further, on the cutting body 13, a plate-shaped detection unit 17 along the receiving width of the ribbon receiving unit 14 is rotatably provided on the ribbon receiving unit 14 on the ink ribbon supply device side. A detection unit 18 such as a micro switch for detecting the detection state of the detection unit 17 is provided below. The detection unit 17 and the detection unit 18 detect and detect the tension due to feeding, which will be described later, and can deal with both colored and colorless (semi-transparent or transparent) ink ribbons. When a colored ink ribbon is targeted, an optical sensor may be used instead of the detection unit 17 and the detection unit 18.

The detection unit 18 detects the tension at the end of the supplied ink ribbon when the ink ribbon is supplied by pulling out the cutter roller 21, which will be described later, through the detection unit 17. The detection unit 17 pulls out the ink ribbon. When the detector 18 outputs a cutting drive continuation signal to the drive unit 23, which will be described later, when it is located at the lower position due to the tension, the ink ribbon becomes the end portion and the tension disappears, and the detector 17 is driven when it is at the upper position. It outputs a stop signal.

As shown in FIG. 1(B), inside the cutting main body 13, the front door 16 side is a cutting area 13A, the ribbon receiving portion 14 is provided with a narrow width downward, and the cutting roller is a cutting portion directly below. 21 is provided in the same axial direction as the length direction of the ribbon receiving portion 14. The cutter roller 21 is composed of a pair of rollers each having a cutting blade formed on its circumference, similar to those used conventionally, and each roller rotates so as to be wound downward as shown in the figure. To do.

Below the cutter roller 21, a cut piece storage bag 22 held by a cut piece storage bag holder 22A that stores the cut ink ribbon cut pieces is arranged. A drive unit 23 such as a motor or a control panel is provided on the inner side of the cutting area 13A.

Here, FIG. 2 shows an explanatory view of the ink ribbon supply device in the ink ribbon cutting device of FIG. FIG. 2A shows the casing 31 of the ink ribbon supply device 12, and side faces 31A and 31B facing the bottom side 31C in the same direction as the side face of the device are integrated. Then, the insertion guide shaft 32 is provided below the device front side of the casing 31. A predetermined number of mounting holes 35 are formed in the bottom portion 31C, and the ink ribbon supply device 12 is mounted and fixed on the cutting body 13 by screwing or the like from the mounting holes 35.

A pair of first fitting fixing grooves 33A, 33B facing a predetermined position on the upper side of each side surface portion 31A, 31B is provided, and a pair of second fitting fixing grooves 34A, 34B further facing each other are provided on the inner side of the pair. It is provided in. The first fitting fixing grooves 33A, 33B and the second fitting fixing grooves 34A, 34B are formed in a substantially rectangular shape, and the ink ribbon mounting portion 41 shown in FIG. 2B is fitted and fixed in each ( See below).

As shown in FIG. 2B, the ink ribbon mounting section 41 includes a shaft 42, a pair of first roll fixed rotation section 43A and second roll fixed rotation section 43B, and the first roll fixed rotation section 43A. It is composed of a first fixing portion 44A and a second fixing portion 44B corresponding to the second roll fixed rotating portion 43B.

The shaft 42 may be formed of either metal or resin, and for example, an axial notch surface 42A is formed over the entire axial direction of the upper portion. This serves as a screw fixing surface by the first fixing portions 44A and 44B described later. Further, end non-rotating fitting portions 42B and 42C are formed at both ends of the shaft 42, respectively.

Notch vertical surfaces 42D and 42E are formed on both sides of the axial non-rotational fitting portion 42B in a direction perpendicular to the axial notch surface 42A. The end non-rotation fitting portion 42C has a similar shape, and illustration and description thereof will be omitted. The respective end non-rotating fitting portions 42B, 42C are formed in the first fitting fixing grooves 33A, 33B (the same applies to the second fitting fixing grooves 34A, 34B) formed in the side surface portions 31A, 31B. The notch vertical surfaces 42D, 42E correspond to the substantially rectangular shape of the first fitting fixing grooves 33A, 33B (second fitting fixing grooves 34A, 34B). As a result, the shaft 42 itself does not rotate.

The first roll fixing/rotating portion 43A has a truncated cone shape having a shaft hole through which the shaft 42 passes, and has a tapered surface from the large circle side to the small circle side. The shaft 42 is passed through the shaft hole of the first roll fixing and rotating unit 43A so as to be rotatable on the shaft 42. The second roll fixing/rotating portion 43B has the same shape and may be made of metal or resin.

The first fixing portion 44A has a donut-shaped sliding body 45A in which a shaft hole for passing the shaft 42 is formed in the center, and a screw hole is formed at a predetermined position on the circumferential surface of the sliding member 45A so as to extend along the shaft hole. A fixing screw 45C having a knob 45B is screwed into the screw hole and penetrates to the shaft hole. The second fixing portion 44B has the same shape and may be made of metal or resin together with the first fixing portion 44A.

That is, in relation to the shaft 42, the first roll fixed rotation part 43A is inserted into the shaft 42 from the one end side (the end non-rotation fitting part 42B side) from the small circle side. Subsequently, the first fixing portion 44A is inserted so that the screw hole corresponds to the axial cutout surface 42A of the shaft 42, and the fixing screw 45C is tightened so as to abut the axial cutout surface 42A. To fix it.

Further, the second roll fixed rotation part 43B is inserted into the shaft 42 from the other end side (end part non-rotation fitting part 42C side) from the small circle side. Subsequently, the second fixing portion 44B is inserted so that the screw hole corresponds to the axial cutout surface 42A of the shaft 42, and the fixing screw 45C is tightened so as to abut the axial cutout surface 42A. To fix it.

Next, FIG. 3 shows an explanatory diagram of the relationship between the ink ribbon roll and the ink ribbon mounting portion. As shown in FIG. 3(A), the ink ribbon roll 51 is formed by winding a used ink ribbon 52 around a hollow winding core 51A in a roll shape, and as another ink ribbon roll 61, As shown in FIG. 3B, the ink ribbon 52 is wound around a take-up reel 62 having a flange 63 at one end (or both ends) of a hollow take-up core 62A. It can be applied to any case, and in this embodiment, the ink ribbon roll 51 shown in FIG. 3A will be described. In the relationship between the ink ribbon roll 51 and the shaft 42, as shown in FIG. 3(C), the second roll fixed rotation part 43B is arranged from the other end side (the end non-rotation fitting part 42C side) of the shaft 42. In the state of being fixed by inserting as described above, then inserting the second fixing portion 44B and tightening the fixing screw 45C so as to make contact with the axial notch surface 42A, the state shown in FIG. As shown in, the ink ribbon roll 51 is inserted from one end side (the end non-rotation fitting portion 42B side) of the shaft 42.

Therefore, as shown in FIG. 3(E), the first roll fixed rotation portion 43A is inserted from one end side (end non-rotation fitting portion 42B side) of the shaft 42. Subsequently, as shown in FIG. 3F, the first fixing portion 44A is inserted and the first roll fixing rotating portion 43A is moved so as to be pressed against one end side of the hollow winding core 51A of the ink ribbon roll 51, The other end side of the hollow take-up core 51A of the ink ribbon roll 51 is pressed against the second roll fixing rotation part 43B and the second fixing part 44B. Then, the fixing screw 45C is tightened so as to be brought into contact with the axial cutout surface 42A so as to be in a fixed state.

That is, in the ink ribbon mounting portion 41 on which the ink ribbon roll 51 is mounted, on the shaft 42 thereof, the pair of the first roll fixed rotation portion 43A and the second roll fixed rotation portion 43B has a hollow winding core with their tapered surfaces. The two ends of 51A are engaged with each other to be in a fixed state, and they are integrally rotatable with each other on a non-rotating shaft 42 (described in FIG. 4).

Therefore, FIG. 4 shows an explanatory view of an ink ribbon roll set state in the ink ribbon supply device of FIG. First, as shown in FIG. 4(A), two ink ribbon mounting portions 41 on which the ink ribbon roll 51 shown in FIG. 3(E) is mounted are provided with respect to the housing 31 provided with the insertion guide shaft 32. Be prepared.

Then, as shown in FIG. 4B, the ink ribbon mounting portion 41 on which the one ink ribbon roll 51 is mounted has the respective end non-rotation fitting portions 42B and 42C formed at both ends of the shaft 42. It is set by being fitted and placed in the first fitting and fixing grooves 33A and 33B formed in the side surface portions 31A and 31B. Subsequently, the ink ribbon mounting portion 41 on which the other ink ribbon roll 51 is mounted is formed with the end non-rotating fitting portions 42B and 42C formed on both ends of the shaft 42 on the side surface portions 31A and 31B. It is set by fitting and placing it in the second fitting fixing grooves 34A and 34B.

That is, the ink ribbon mounting portion 41 on which the respective ink ribbon rolls 51 are mounted has the end non-rotating fitting portions 42B and 42C of the shafts 42, the first fitting fixing grooves 33A and 33B, and the second fitting fixing. The shafts 42 are in a non-rotating state depending on the fitting state with the grooves 34A and 34B, and are integrated with the first roll fixing rotating part 43A and the second roll fixing rotating part 43B with which the respective ink ribbon rolls 51 are engaged. It becomes a target and can rotate freely.

Next, FIGS. 5 and 6 are explanatory views of the arrangement set of the ink ribbon. In the state of the ink ribbon mounting portion 41 on which the two ink ribbon rolls 51 are mounted as shown in FIG. 4B, first, as shown in FIG. While pulling out 52, the ink ribbon 52 is pulled out from the ink ribbon roll 51 on the front side and they are stacked to form a stacked ink ribbon 52A.

As shown in FIG. 5B, the overlapping ink ribbon 52A is pulled out from below the insertion guide shaft 32 and further to the opposite side of the detection unit 17 and the ribbon receiving unit 14. In this state, the power switch 15A starts the operation of the apparatus to rotate the cutter roller 21.

Therefore, as shown in FIG. 6A, an insertion dummy 53 such as a cardboard is inserted into the ribbon receiving portion 14 of the cutting body 13 from above the overlapping ink ribbon 52A. As a result, the overlapping ink ribbon 52A together with the insertion dummy 53 is pulled into the cutter roller 21, and thereafter, as shown in FIG. 6B, continuous cutting is performed and the cut ink ribbon cutting piece 52B is cut. It is stored in the cutting piece storage bag 22.

At the time of cutting, as shown in FIGS. 6A and 6B, each ink ribbon roll 51 is rotated by the pulling force of the cutter roller 21 together with the first roll fixing rotation part 43A and the second roll fixing rotation part 43B. Are sequentially drawn out, and the tension causes the detection unit 17 to rotate downward and be detected by the detection unit 18 (driving continues), and all of the ink ribbons 52 drawn out from the respective ink ribbon rolls 51 are drawn out. When the sheet is cut, the tension due to the ink ribbon 52 disappears, and the detection unit 17 returns to the upper position to switch the detection signal of the detection unit 18 and stop the operation.

Next, FIG. 7 shows an explanatory diagram of another configuration of the ink ribbon mounting portion. The ink ribbon mounting portion 41 shown in FIG. 7 has a configuration in which a plurality of ink ribbon rolls 51 can be mounted within the range of the length of the shaft 42. That is, as an example in which two ink ribbon rolls 51 can be mounted, as shown in FIG. 7, the first fixing portion 44A and the second fixing portion 44B are arranged at both ends on the shaft 42, and the first fixing portion 44A and A pair of the first roll fixed rotation unit 43A-1 and the second roll fixed rotation unit 43B-2 are arranged between the second fixed unit 44B and one ink ribbon roll 51 to be mounted, and a pair of The first roll fixing and rotating unit 43A-2 and the second roll fixing and rotating unit 43B-1 are arranged and another ink ribbon roll 51 is mounted. The ink ribbon rolls 51 to be mounted may have the same width or a combination of different widths.

In this way, the ink ribbon roll 51, in which the ink ribbon 52 is wound in a roll shape, is rotatable on the non-rotating shaft 42 that penetrates the hollow winding core 51A. Also, it is possible to rotate integrally with the second roll fixed rotation unit 43B, and the ink ribbon 52 can be supplied with a light load by a simplified rotation mechanism. Further, the ink ribbon supply device 12 can be applied to any cutting body as an ink ribbon cutting device.

INDUSTRIAL APPLICABILITY The ink ribbon cutting device and the ink ribbon supply device of the present invention can be used in industries such as manufacture, sale, and use of a cutting device that continuously cuts a roll-shaped ink ribbon into pieces.

11 Ink Ribbon Cutting Device 12 Ink Ribbon Supply Device 13 Cutting Main Body 14 Ribbon Receiving Section 15A Power Switch 15B Operation Switch 16 Front Door 17 Detecting Section 18 Detecting Section 21 Cutter Roller 22 Cutting Strip Storage Bag 22A Cutting Strip Storage Bag Holder 23 Drive Section 31 Housing 31A, 31B Side surface 31C Bottom 32 Insertion guide shaft 33A, 33B First fitting fixing groove 34A, 34B Second fitting fixing groove 35 Mounting hole 41 Ink ribbon mounting portion 42 Shaft 42A Axial notch surface 42B, 42C End non-rotation fitting part 42D, 42E Notch vertical surface 43A 1st roll fixed rotation part 43B 2nd roll fixed rotation part 44A 1st fixing part 44B 2nd fixing part 45A Sliding body 45B Knob 45C fixing screw 51, 61 Ink ribbon roll 51A Hollow winding core 52 Ink ribbon 52A Stacked ink ribbon 53 Insert dummy 62 Winding reel 62A Hollow winding core 63 Flange

Claims (2)

An ink ribbon cutting device which is used in a printer to divide an ink ribbon formed into a roll on a hollow winding core into pieces,
A ribbon receiving unit that receives the ink ribbon, and a cutting body that includes at least a cutting unit that cuts while drawing the ink ribbon received from the ribbon receiving unit,
A non-rotating shaft that penetrates a hollow winding core in the roll-shaped ink ribbon, and a pair of rolls that are rotatable on the shaft and that are engaged at both ends of the hollow winding core and integrally rotate. An ink ribbon supply device that includes a fixed rotation part and supplies the ink ribbon according to the drawing of the cutting part;
An ink ribbon cutting device having: An ink ribbon supply device that is detachably provided in an ink ribbon cutting device that is used in a printer and that makes an ink ribbon in a roll shape on a hollow winding core while drawing it into pieces.
A non-rotating shaft that penetrates the hollow winding core of the roll-shaped ink ribbon,
A pair of roll fixed rotating portions that are rotatable on the shaft and that are engaged at both ends of a hollow winding core in the roll-shaped ink ribbon and integrally rotate.
An ink ribbon supply device comprising:

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