JP2000042987A - Sheet supporting unit and cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet supporting unit capable of surely winding a sheet and ensuring cutting action in accordance with a kind of the sheet by a simple constitution, and a cutting device provided with this sheet supporting unit. SOLUTION: A sheet supporting unit 14 is constituted by a cylinder part 54 winding a tack sheet 13 and two flange parts 55, 56 provided in both ends of the cylinder part 54, and a group of holes corresponding to a specific bit pattern is formed in one flange part 56. In this way, the tack sheet 13 can be surely wound and cutting action can be ensured in accordance with a kind of the tack sheet 13 by a simple constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet supporting unit and a cutting apparatus, and more particularly, to a sheet supporting unit used in a cutting apparatus for cutting a sheet conveyed in both forward and reverse directions, and the sheet supporting unit. And a cutting device comprising:

[0002]

2. Description of the Related Art Conventionally, there has been known a cutting apparatus for cutting a tack sheet or the like in which a release sheet is adhered to an adhesive sheet into a predetermined shape. As this type of cutting apparatus, for example, a sheet supporting unit for rotatably supporting a sheet wound in a roll shape, and a conveying roller for conveying the sheet supported by the sheet supporting unit in both forward and reverse directions And a cutting mechanism for cutting a sheet conveyed by the conveying roller. The cutting mechanism usually includes a cutter for cutting the sheet, and a carriage for reciprocating the cutter in a direction (the width direction of the sheet) substantially perpendicular to the sheet conveying direction. The sheet is cut into a predetermined shape by the reverse rotation and the reciprocal movement of the carriage in the width direction of the sheet.

Also, in such a cutting apparatus, since the moving range of the carriage varies according to the width of the sheet, the mark indicating the width of the sheet is usually provided at the end in the width direction of the sheet. Is provided over the entire length in the longitudinal direction, and the mark is detected by a sensor to control the moving range of the carriage.

[0004]

However, when such a mark is provided over the entire length in the length direction of the sheet,
At the end in the width direction of the sheet, an extra portion for providing a mark is required, and labor for providing the mark is required, so that there is a problem that the cost of the sheet increases.

Further, in such a cutting apparatus, a predetermined cutting operation is performed according to the forward rotation and the reverse rotation of the transport roller. Need not be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to realize a simple structure that allows a sheet to be reliably wound and performs a cutting operation according to the type of sheet. An object of the present invention is to provide a sheet supporting unit that can be secured and a cutting device including the sheet supporting unit.

[0007]

In order to achieve the above object, the invention according to the first aspect comprises a conveying means capable of conveying a sheet in both forward and reverse directions, and a cutting means for cutting the sheet. A sheet support unit used for a cutting device and rotatably supporting a sheet in a wound state, wherein the sheet support unit is provided at both ends of the tube portion around which the sheet is wound and at both ends of the tube portion. And an information display unit for displaying predetermined information on at least one of the two flanges.

According to such a configuration, the movement of the sheet wound around the cylindrical portion in the width direction is restricted by the two flange portions provided at both ends of the cylindrical portion. Further, information required for cutting the wound sheet can be displayed on an information display portion formed on the flange portion.

The invention described in claim 2 is the first invention.
In the invention described in (1), a gear portion for rotating the seat support unit is formed on the flange of the seat support unit.

According to such a configuration, the seat support unit can be directly rotated by the gear formed on the flange.

According to a third aspect of the present invention, there is provided a conveying means capable of conveying a sheet in both forward and reverse directions, a cutting means for cutting the sheet, and a rotatably supporting sheet in a wound state. In the cutting device, comprising a sheet support unit, the sheet support unit,
An information display section for displaying predetermined information is formed on at least one of the two flanges, comprising: a cylinder on which a sheet is wound; and two flanges provided at both ends of the cylinder. And a detecting means for detecting the information display section is provided.

According to such a configuration, the movement of the sheet wound around the cylindrical portion of the sheet supporting unit in the width direction is restricted by the two flange portions provided at both ends of the cylindrical portion. Therefore, even when the sheet is conveyed in the reverse direction by the conveying unit, the sheet is hardly disturbed around the sheet supporting unit. In addition, by displaying information required for cutting the wound sheet on an information display portion formed on the flange portion, if the information display portion is detected by the detection means, In addition, the cutting operation according to the wound sheet can be reliably performed.

The invention described in claim 4 is the same as the claim 3.
In the invention described in (1), a gear portion for rotating the seat support unit is formed on the flange of the seat support unit.

According to this configuration, the seat support unit can be directly rotated by the gear portion formed on the flange portion.

[0015]

FIG. 1 is a plan view showing a main part of a cutting printer 11 as an embodiment of a cutting apparatus according to the present invention, and FIG. 2 is a cross-sectional side view of the main part of the cutting printer 11 shown in FIG. FIG.

In FIGS. 1 and 2, the cutting printer 11 is rotatably supported in a state in which a tack sheet 13 as a sheet is wound in a frame 12 having side walls 9 and 10 provided on both right and left sides. , A transport mechanism 15 as a transport unit capable of transporting the tack sheet 13 in both forward and reverse directions, and a cutting mechanism 16 for cutting the tack sheet 13 transported by the transport mechanism 15. Also, an image forming mechanism 17 is provided upstream of the cutting mechanism 16 for forming a predetermined image on the tack sheet 13 when the tack sheet 13 is transported in the forward direction.

FIG. 3 is an exploded front view showing the structure of the seat support unit 14, FIG. 5 is a front view showing a state where the seat support unit 14 is assembled, FIG. 6 is a left side view in FIG. 5, and FIG. FIG.

As shown in FIG. 3, the sheet supporting unit 14 includes a roll member 51 and two roll holders 52 and 53 for rotatably supporting the roll member 51.
And The roll member 51 includes a tubular portion 54 and two flange portions 55 and 56 provided at both ends of the tubular portion 54.
And The tubular portion 54 has a cylindrical shape having a length substantially equal to the sheet width of the tack sheet 13, and the tack sheet 13 is wound in a roll shape as shown in FIG. 4. The tack sheet 13 is composed of two layers: an adhesive sheet 18 whose front surface is printable and an adhesive is applied to the back surface, and a release paper 19 bonded to the back surface of the adhesive sheet 18. The flanges 55 and 56
The tubular portion 54 extends radially outward from both ends of the tubular portion 54 and
When the tack sheet 13 is wound around 4, it is formed into a disk shape having a diameter larger than the winding diameter. The flanges 55 and 56 are further provided with cylindrical projecting cylinders 57 and 58 projecting outward from the flanges 55 and 56 in the width direction of the sheet. A gear 59 as a gear portion is formed around the periphery.

As shown in FIGS. 3, 5 and 6, one roll holder 52 has a substantially disk-shaped support plate 60 and a cross section projecting outward from the support plate 60 in the width direction of the sheet. A rectangular mounting member 61, a support shaft 62 protruding inward in the sheet width direction from the support plate 60 and inserted into the cylindrical portion 54 of the roll member 51, and a sheet And a cylindrical cover 63 that protrudes inward in the width direction and covers an end of the roll member 51. At the lower end of the roll holder 52, an engagement projection 71 for attachment is provided.

As shown in FIGS. 3, 5 and 7, the other roll holder 53 has a substantially disk-shaped support plate 64 and a cross section projecting outward from the support plate 64 in the width direction of the sheet. A rectangular mounting member 65, a support shaft 66 protruding inward in the sheet width direction from the support plate 64 and inserted into the cylindrical portion 54 of the roll member 51, and a sheet And a cylindrical cover 77 that protrudes inward in the width direction and covers an end of the roll member 51. The support plate 64 and the cover 77 are partially cut out below, and
The gear 59 of the roll member 51 and the planetary gear mechanism 26 described later
It is possible to engage with. In addition, the roll holder 5
At the lower end of 3, an engagement projection 72 for attachment is provided.

As shown in FIG. 3, a male joint 68 having an engaging claw 67 at the tip of one of the support shafts 62 is provided.
And at the tip of the other support shaft 66,
A female joint 70 having an engaging portion 69 for engaging the engaging claw 67 of the support shaft 62 is formed, and the roll member 51 is sandwiched between the two roll holders 52 and 53. By inserting the support shaft 62 and the support shaft 66 into the cylindrical portion 54 and connecting the male joint portion 68 and the female joint portion 70 within the cylindrical portion 54, as shown in FIG. The roll member 51 is rotatably supported by the two roll holders 52 and 53.

As shown in FIGS. 8 and 9, a group of holes 73 as an information display portion is formed in the flange portion 56 provided at one end of the roll member 51. FIG.
As shown in FIG. 5, the group of holes 73 is formed at three locations at a peripheral end of the flange 56 at an interval of about 120 ° from each other. As shown in FIG. 9, this group of holes 73
Is formed so as to correspond to a specific bit pattern. This bit pattern is composed of a start bit 74 for starting detection of the bit pattern and a data bit 75 corresponding to predetermined information. The data bit 75 includes the type of the tack sheet 13 to be wound,
Information such as sheet width and material is included.

The seat supporting unit 14 thus constructed is detachably attached to one end of the frame 12, as shown in FIGS. That is, the frame 12 is provided with two of the sheet support units 14.
1 in which two mounting members 61 and 65 can be fitted
A pair of unit support members 49 and a pair of engagement recesses 50 for receiving the two engagement protrusions 71 and 72 are provided. The pair of unit support members 49 are formed in a substantially U-shape, and are arranged to face each other with the sheet support unit 14 interposed therebetween. Similarly, the pair of engagement recesses 50 are also arranged to face each other with the sheet support unit 14 interposed therebetween. Then, the two mounting members 61 and 65 of the seat support unit 14 are fitted into the pair of unit support members 49, and the two engagement protrusions 71 and 72 are connected to the pair of engagement recesses 5.
0, the seat support unit 14
It is detachably mounted in the frame 12.

As shown in FIGS. 1, 2, 5 and 8, one flange 5 is provided on the bottom surface of the frame 12 with the seat support unit 14 attached.
A transmission type optical sensor 76 as a detection unit is provided at a position opposed to 6. The optical sensor 76 is formed in a substantially U-shape, and is arranged so as to sandwich the flange 56. The light-emitting portion and the light-receiving portion are provided so as to face a group of holes 73 formed in the flange portion 56, and a specific bit pattern corresponding to the group of holes 73 is detected by rotation of the flange portion 56. I can do it.

As shown in FIG. 2, the transport mechanism 15 includes a platen roller 2 which is a component of the image forming mechanism 17.
4 and a discharge roller 25 disposed downstream of the cutting mechanism 16. The driven roller 8 is disposed at a position facing the discharge roller 25 with the tack sheet 13 interposed therebetween. The driven roller 8 is supported by a pressing plate 7 that urges the driven roller 8 toward a discharge roller 25 by a spring. The platen roller 24 and the discharge roller 25 are driven by the first drive motor 21 disposed in the frame 12 in the forward / reverse drive.
Is rotated so as to convey the tack sheet 13 in the forward and reverse directions via the first gear train 22. Further, the drive from the first drive motor 21 is transmitted to the gear 59 provided on the roll member 51 of the sheet support unit 14 via the second gear train 27 including the planetary gear mechanism 26. . The planetary gear mechanism 26 is configured to mesh with the gear 59 only when the tack sheet 13 is transported in the reverse direction, and not to mesh with the gear 59 when transporting the tack sheet 13 in the forward direction. Therefore, when the roll sheet 51 conveys the tack sheet 13 in the forward direction, the roll sheet 51 is rotated by the force of pulling out the tack sheet 13 by the rotation of the platen roller 24 and the discharge roller 25, while the tack sheet 13 is conveyed in the reverse direction. At times, it is directly rotated by the drive from the first drive motor 21.

The cutting mechanism 16 includes a cutting bet 29 for receiving the tack sheet 13, a cutter unit 30 as cutting means opposed to the cutting bet 29 with the tack sheet 13 interposed therebetween, and a detachable mounting of the cutter unit 30. And a carriage 31 to be operated.

As shown in FIG. 10, the cutter unit 30
Has a cutter 43 at its lower end for cutting the tack sheet 13, and the cutter 43 is moved by an elevating mechanism (not shown) in the cutter unit 30.
In addition, it is selectively supported at an entire cutting position where the release paper 19 is also cut and a half cutting position where only the adhesive sheet 18 is cut.

As shown in FIG. 1, the carriage 31 is provided on the outside of both side walls 9 and 10 of the frame 12.
The endless timing belt 34 is connected to a pair of pulleys 32 and 33. As shown in FIG. 2, of the pair of pulleys 32 and 33,
One pulley 32 is driven by a second drive motor 35 disposed outside the side wall 10 of the frame 12 via a third gear train 36 including a bevel gear and the like. As a result, the carriage 31 is reciprocated in a direction substantially perpendicular to the transport direction of the tack sheet 13 (the sheet width direction).

As shown in FIG. 10, both ends of the carriage 31 are supported by both side walls 9 and 10 of the frame 12 at an end opposite to the end on which the cutter unit 30 is mounted. Main guide shaft 37
Is slidably inserted. Also, the cutter unit 30
An auxiliary guide shaft 38 extending substantially parallel to the main guide shaft 37 is provided at an intermediate position between the end on which the main guide shaft 37 is inserted and the end on the side where the main guide shaft 37 is inserted.
Are slidably inserted. Both ends of the auxiliary guide shaft 38 are supported by a pair of rotating arms 39 rotatably provided on both side walls 9 and 10 of the frame 12, and one end of the auxiliary guide shaft 38 is
It is connected to an output shaft 42 of a solenoid 41 via an operation link 40. When the solenoid 41 is in the ON state (excited state), the cutter unit 30 is operated by the urging force of a spring (not shown) so that the lower end thereof presses the upper surface of the cutting portion bet 29, and the solenoid 4 is turned on.
When 1 is in the off state (non-excited state), the output shaft 42 of the solenoid 41 advances, and the end of the carriage 31 on the side on which the cutter unit 30 is mounted via the operation link 40 and the auxiliary guide shaft 38. By rotating the cutter unit 30 upward with the main guide shaft 37 as a fulcrum, the lower end of the cutter unit 30 is operated to be separated from the upper surface of the cutting bed 29.

As shown in FIGS. 1 and 2, the image forming mechanism 17 includes a line-type thermal head 44 as a print head having a length substantially equal to the width of the tack sheet 13, and a thermal head 44. And tack sheet 13
, And a platen roller 24 opposed thereto.

Next, the operation of the thus-configured cutting printer 11 will be described. First, when a power supply (not shown) is turned on, the first drive motor 21 is driven by a predetermined amount, whereby the roll member 51 is rotated and the flange portion 56 is rotated.
A specific bit pattern corresponding to the group of holes 73 formed in the optical sensor 76 is detected by the optical sensor 76. By detecting the bit pattern, information such as the type, sheet width, and material of the tack sheet 13 is determined by a CPU (not shown), and the reciprocating range of the carriage according to the sheet width of the tack sheet 13 is set. Sheet 1
The conditions of the apparatus are set according to the tack sheet 13 used at that time, such as setting the driving conditions of the heating elements of the thermal head 44 according to the three types and materials. In addition to the condition setting of the apparatus, image data such as characters, symbols, and graphics created in advance in the cutting printer 11 or an external device such as a computer (not shown) is transmitted to a memory (not shown) in the cutting printer 11. Then, when receiving a print start command, the first drive motor 21 is driven to rotate forward, and the platen roller 24 and the discharge roller 25
Is rotated so as to be transported in the forward direction. by this,
The leading end of the tack sheet 13 enters the image forming mechanism 17, that is, between the thermal head 44 and the platen roller 24. A predetermined image is formed on the entered tack sheet 13 by driving the heating elements of the thermal head 44. Then, the tack sheet 13 on which the predetermined image is formed is then conveyed to the cutting mechanism 16.

The tack sheet 13 conveyed to the cutting mechanism 16 is, for example, half-cut so as to surround a portion where a predetermined image is formed, and then cut in the width direction of the tack sheet 13.

That is, at the time of half-cut, the solenoid 41 is turned on at the half-cut start position while the cutter 43 is supported at the half-cut position by an elevating mechanism (not shown), whereby the cutter unit 30 is turned on. It comes into contact with the tack sheet 13. Then, the first drive motor 21 is driven to rotate forward and backward, and the tack sheet 13 is transported in the forward and reverse directions, so that the adhesive sheet 18 is cut along the transport direction. With the cutting along the direction, the second drive motor 35 is driven to rotate forward and backward, and the carriage 31 is reciprocated in the width direction of the tack sheet 13.
Are cut along the width direction, and the forward rotation drive and reverse rotation drive of the first drive motor 21 and the forward rotation drive and reverse rotation drive of the second drive motor 35 are performed simultaneously and relatively. The portion of the tack sheet 13 where a predetermined image is formed is half-cut into an arbitrary shape such as a rectangular shape or an elliptical shape.

Next, at the time of full cutting, the cutter 43
Is turned on in a state where the solenoid 41 is supported at all cutting positions by a lifting mechanism (not shown), the second drive motor 35 is driven to rotate forward and reverse, and the carriage 31 reciprocates in the width direction of the tack sheet 13. By being moved, the tack sheet 13 is entirely cut along its width direction.

In such a cutting operation,
The tack sheet 13 wound around the cylindrical portion 54 is formed by two flanges 55 and 56 provided at both ends of the cylindrical portion 54.
Since the movement in the width direction is restricted, even when the sheet is conveyed in the reverse direction, it is difficult for the tack sheet 13 to be disturbed with respect to the sheet support unit 14, and a smooth rewinding operation can be secured. Moreover, a group of holes 73 formed in the flange portion 56 is formed by the wound tack sheet 1.
3 is formed so as to correspond to the bit pattern, the information required for forming and cutting an image on the image 3. Sheet 1
3 can be reliably performed. Therefore, with a simple configuration in which only the flange 56 is provided, the tack sheet 13 can be reliably wound, and the printing operation and the cutting operation according to the type of the tack sheet 13 can be ensured.

Further, when the tack sheet 13 is conveyed in the reverse direction, the roll member 51 is directly rotated by the drive from the first drive motor 21 by the engagement between the planetary gear mechanism 26 and the gear 59. 13 can be wound without slack, and it is more difficult to cause winding disorder, and a smoother rewinding operation can be ensured.

In the present embodiment, a group of holes 73 corresponding to the bit pattern is formed as an information display portion, and this is detected by the transmission type optical sensor 76. Instead of forming the information display unit with a paint or tape having a different reflectance, a reflective optical sensor may be used, or a known sensor other than the optical sensor may be used. The information display section may be provided on any of the flange sections 55 and 56.
It may be provided on both flanges 55 and 56. Further, the information displayed on the information display unit includes the type of the tack sheet 13,
It is not limited to the sheet width and the material, but may be appropriately selected depending on the purpose and use.

[0038]

As described above, according to the first aspect of the present invention, the sheet wound around the cylindrical portion is moved in the width direction by the two flanges provided at both ends of the cylindrical portion. Is regulated. Therefore, even when the sheet is conveyed in the reverse direction by the conveying means, the sheet is hardly disturbed with respect to the sheet supporting unit, and a smooth rewinding operation can be secured. Also, by displaying information necessary for cutting the wound sheet on the information display section formed on the flange section, if this information display section is detected, the winding The cutting operation according to the sheet being performed can be performed reliably. Therefore, the sheet can be reliably wound with a simple configuration in which only the flange portion is provided, and the cutting operation according to the type of the sheet can be ensured.

According to the second aspect of the present invention, when the sheet is conveyed in the reverse direction, the sheet supporting unit can be directly rotated together with the conveyance by the gear formed on the flange. For this reason, the sheet can be wound without slack, and it is less likely to cause winding disorder, and a smoother rewinding operation can be secured.

According to the third aspect of the present invention, the two flanges provided at both ends of the cylindrical portion of the sheet support unit cause the sheet to be disturbed with respect to the sheet support unit when the sheet is conveyed in the reverse direction by the conveying means. And a smooth rewinding operation can be ensured. In addition, if information required for cutting the wound sheet is displayed on an information display portion formed on at least one of the flanges, the information is detected by the detecting means. Thus, the cutting operation according to the wound sheet can be reliably performed. Therefore, the cutting operation according to the type of the sheet can be realized with a simple configuration.

According to the fourth aspect of the present invention, when the sheet is conveyed in the reverse direction, the sheet support unit can be directly rotated together with the conveyance by the gear formed on the flange. For this reason, the sheet can be wound without slack, and it is less likely to cause winding disorder, and a smoother rewinding operation can be secured.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of a cutting printer as one embodiment of a cutting device of the present invention.

FIG. 2 is a sectional side view of a main part of the cutting printer shown in FIG.

FIG. 3 is an exploded front view showing a configuration of a sheet supporting unit of the cutting printer shown in FIG.

FIG. 4 is a perspective view showing a state in which a tack sheet is wound around a tubular portion of the sheet support unit shown in FIG. 3;

FIG. 5 is a front view showing a state where the seat support unit shown in FIG. 3 is assembled.

FIG. 6 is a left side view in FIG.

FIG. 7 is a right side view in FIG.

FIG. 8 is a front view showing one flange of the seat support unit shown in FIG. 3;

FIG. 9 is an enlarged view of a main part of FIG. 8;

FIG. 10 is a sectional side view of a main part showing a cutting mechanism of the cutting printer shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Cutting printer 13 Tack sheet 14 Sheet support unit 15 Transport mechanism part 16 Cutting mechanism part 54 Tube part 55 Flange part 56 Flange part 73 Hole 76 Optical sensor

Claims (4)

[Claims] 1. A sheet for use in a cutting apparatus having a conveying means capable of conveying a sheet in both forward and reverse directions and a cutting means for cutting the sheet, and for supporting the sheet in a wound state so as to be rotatable. A support unit, wherein the sheet support unit includes a tubular portion around which a sheet is wound, and two flange portions provided at both ends of the tubular portion.
An information display unit for displaying predetermined information is formed on at least one of the two flanges, wherein the seat support unit is provided. 2. The sheet support unit according to claim 1, wherein a gear portion for rotating the sheet support unit is formed on a flange of the sheet support unit. 3. A cutting device comprising: conveying means capable of conveying a sheet in both forward and reverse directions; cutting means for cutting the sheet; and a sheet supporting unit for rotatably supporting the sheet in a wound state. In the apparatus, the sheet support unit includes a tubular portion around which a sheet is wound, and two flange portions provided at both ends of the tubular portion,
An information display unit for displaying predetermined information is formed on at least one of the two flanges, and a detecting unit for detecting the information display unit is provided. apparatus. 4. The cutting device according to claim 3, wherein a gear portion for rotating the sheet support unit is formed on a flange portion of the sheet support unit.