JP2010006546A - Band-shaped continuous element feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a band-shaped continuous element feeding device changing tension applied to a band-shaped continuous element wound in a roll shape according to a roll diameter, and fixing the tension even if an inner diameter of a core member is different. <P>SOLUTION: The band-shaped continuous element feeding device comprises a roll diameter remaining amount detecting means 21, a rotatable tension applying roller 23 abutting on a peripheral surface of the band-shaped continuous element 2, an energizing means 22 energizing the tension applying roller to the band-shaped continuous element by following a roll diameter of the band-shaped continuous element reeled out and contracted, a tension generating means 20 applying fixed tension to the band-shaped continuous element provided at a feeding portion 3, and a controlling means controlling each portion. When the roll diameter remaining amount detecting means detects that the roll diameter of the band-shaped continuous element is large, the controlling means rotates f the tension applying roller in a pay-out direction F, and when the roll diameter is middle size, the tension applying roller is not rotated. Furthermore, when the roll diameter is small, the controlling means rotates b the tension applying roller in a counter pay-out direction B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

In particular, the present invention provides a belt-like continuous body supply device capable of changing the tension applied to a belt-like continuous body such as a roll wound around a label, a tag continuous body, and a carbon continuous body in accordance with the roll diameter. About.

2. Description of the Related Art Conventionally, a belt-like continuous body supply device that can be fed while applying a constant tension to a belt-like continuous body is known (for example, see Patent Document 1).
According to the belt-like continuous body supply device, a constant tension is applied to the belt-like continuous body via a rotating body by a torque limiter. Energizing force is applied by the urging means, the power transmission disk is sandwiched between the first and second rotating disks, and the first and second rotating disks are relatively rotated by the frictional force with the power transmission disk, By rotating the belt-like continuum through the drive shaft and the rotation shaft, no partial friction is generated between the power transmission plate and the first and second rotary plates.
However, according to the belt-like continuous body supply device of Patent Document 1, the core member of the belt-like continuous body is sheathed on the rotating body, and the power transmission board, the first and second rotating disks, In addition, a constant tension is applied to the belt-like continuum through the rotating body by the torque limiter composed of an urging means, and the rotating member and the belt-like continuous body, more specifically, a core member of the belt-like continuous body; However, although the inner diameter of the core member of the belt-like continuous body differs depending on the type of the tag or the label, there is a problem that the fitting may not be possible.
In addition, the first and second turntables are relatively rotated by the frictional force between the first and second turntables and the power transmission board to apply a constant tension. There was a problem that the frequency of replacement became high.

JP 2007-197209 A

The present invention has been made paying attention to the above problems, and changes the tension applied to a belt-like continuous body such as a rolled label, a tag continuous body, and a carbon continuous body according to the roll diameter. It is another object of the present invention to provide a belt-like continuous body supply device capable of making the tension as constant as possible even when the inner diameters of the core members are different.

The belt-like continuous body supply device according to the present invention is configured to rotatably mount a wound roll-shaped belt-like continuous body and feed it downstream, and the belt-like continuous material attached to and fed from the supply part. Roll diameter remaining amount detecting means for detecting the remaining roll diameter of the body, a rotatable tension applying roller that comes into contact with the peripheral surface of the belt-like continuous body mounted on the supply unit, and the belt shape that is drawn out to reduce the diameter A tension generating means for biasing the tension applying roller to the belt-like continuum following the roll diameter of the continuum, and for applying a constant tension to the belt-like continuum mounted on the supply unit; , A belt-like continuous body supply device comprising a control means for controlling the tension generating means based on the roll diameter remaining amount detecting means by the roll diameter remaining amount detecting means, in the detection by the roll diameter remaining amount detecting means, When the roll diameter of the continuous belt is detected to be large, the tension applying roller is rotated in the feeding direction by the control means, and when the roll diameter is medium, the tension applying roller is not rotated. When the roll diameter is small, the tension applying roller is rotated in the reverse feeding direction by the control means.
Further, the belt-like continuous body supply device according to the second aspect of the invention is a roll-like belt-like continuous body that is rotatably mounted and fed downstream, and the above-mentioned belt mounted on the supply section. A reading means for detecting the medium type of the belt-like continuum, a roll diameter remaining amount detecting means for detecting the remaining roll diameter of the belt-like continuum attached to the supply unit in a plurality of stages, and attached to the supply unit A rotatable tension applying roller that abuts on the peripheral surface of the belt-like continuous body, and a biasing force that biases the tension applying roller to the belt-like continuous body by following the roll diameter of the belt-like continuous body that is drawn out to reduce the diameter. A tension generating means for providing a constant tension to the belt-like continuum mounted on the supply unit, a medium type of the belt-like continuum, and a stage of remaining roll diameter detected. With the tension Based on the storage means in which the rotation direction of the roller is set to the feed-out direction or the reverse-feed direction and the rotation direction of the tension applying roller set to the storage means, the belt-like continuum is fed in the feed-out direction or the feed-out reverse direction. Control means for controlling through the generating means.

A belt-like continuous body supply device according to the present invention includes a roll-like continuous belt roll that is rotatably mounted and fed downstream, and a roll of the belt-like continuous roll that is attached to the feed section and fed out. Roll diameter remaining amount detecting means for detecting the remaining diameter, a rotatable tension applying roller that comes into contact with the peripheral surface of the belt-like continuous body mounted on the supply unit, and the roll diameter of the belt-like continuous body that is drawn out to reduce the diameter And a tension generating means for applying a constant tension to the belt-like continuous body mounted on the supply unit, and a roll diameter remaining amount detecting means. Control means for controlling the tension generating means on the basis of the remaining roll diameter, and in the detection by the remaining roll diameter detecting means, when the roll diameter of the belt-like continuous body is detected to be large, the direction of feeding by the control means In The force applying roller is rotated, and when the roll diameter is medium, the tension applying roller is not rotated, and when the roll diameter is small, the tension applying roller is rotated in the reverse feeding direction. When the roll diameter is large and heavy, the rotation of the tension applying roller rotates in the direction of feeding out the belt-like continuous body to assist the feeding of the belt-like continuous body. When the roll diameter is small and the belt-like continuous body is light, tension is applied. There is an effect that the roller can be rotated in the reverse direction B to prevent excessive extension of the belt-like continuous body.
Moreover, the strip | belt-shaped continuous body supply apparatus which concerns on 2nd invention mounts the wound roll-shaped strip | belt-shaped continuous body rotatably, and feeds it out downstream, The strip | belt-shaped continuous body with which the supply part was mounted | worn Reading means for detecting the medium type of the body, roll diameter remaining amount detecting means for detecting the remaining roll diameter of the strip-shaped continuous body mounted on the supply unit in a plurality of stages, and strip-shaped continuous body mounted on the supply unit A rotatable tension applying roller that abuts on the peripheral surface of the belt, and a biasing means that biases the tension applying roller to the belt-like continuous body following the roll diameter of the belt-like continuous body that is drawn out to reduce the diameter. The tension generating means for applying a constant tension to the belt-like continuous body mounted on the section, the medium type of the belt-like continuous body, and the rotation direction of the tension applying roller for each stage of the detected remaining roll diameter, Feeding direction or feeding Storage means set in the reverse direction, and control means for controlling the belt-like continuous body in the feeding direction or the feeding reverse direction via the tension generating means based on the rotation direction of the tension applying roller set in the storage means. The direction in which the belt-like continuous body is fed out by the rotation of the tension applying roller based on the rotation direction of the storage means in which the rotation direction of the tension applying roller is set to the feeding direction or the feeding reverse direction at each stage where the roll diameter is detected. Alternatively, since it is conveyed in the reverse feeding direction, there is an effect that a constant feeding corresponding to the roll diameter of the belt-like continuous body for each medium type can be realized.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 is a schematic side view showing a main part of a label printer provided with a belt-like continuous body supply device according to the present invention.
The label printer 1 mainly includes a supply shaft 3 as a supply unit for mounting a belt-like continuous body 2 wound in a roll shape, a position detection sensor 4 as a position detection means, a thermal head 5 and a platen roller 6. The printing unit 7, the belt-like continuous body supply device 20, and the control unit 8 as control means are provided, and the control unit 8 is connected to the respective units so that the operations of the respective units can be controlled. Yes.
The belt-like continuous body 2 is a “label continuous body” in which a plurality of labels each having a thermosensitive coloring layer on the front surface and an adhesive layer (not shown) on the back surface are temporarily attached to the mount, or the adhesive layer on the back surface is exposed. It is possible to employ a so-called “mount without a backing” in a state, and a “tag continuum” with a cardboard having a thermosensitive coloring layer on the surface.
In addition, on the back side of the belt-like continuous body 2, identification marks (not shown) for use in positioning the belt-like continuous body 2 are printed in advance at equal intervals. Furthermore, the inner diameter of the core member 2a of the strip-shaped continuous body 2 varies depending on the type of the “label continuous body” and the “tag continuous body”.
The position detection sensor 4 includes a light emitting unit 4a that emits predetermined light and a light receiving unit 4b that receives the light. The light emitting unit 4a and the light receiving unit 4b are provided with the identification mark ( It is disposed between the supply shaft 3 and the printing unit 7 so as to detect (not shown).
The printing unit 7 includes a thermal head 5 and a platen roller (hereinafter simply referred to as “platen” as appropriate) 6. The platen 6 is connected to a stepping motor (hereinafter simply referred to as “motor” as appropriate) 9. The belt 10 is connected between them.
The recording medium 2 mounted on the supply shaft 3 is pulled out toward the printing unit 7, is sandwiched between the thermal head 5 and the platen 6 through the position detection sensor 4, and is pulled out to the issue port 11. When the motor 9 is rotated by being pressed by the thermal head 5, the rotation of the motor 9 is transmitted to the platen 6 via the belt 10, and the sandwiched continuous belt 2 is located on the issue port 11 side (in the direction indicated by arrow F). Desired information is printed by the heat of a heating element (not shown) of the thermal head 5 while being fed out and conveyed. Note that the label printer 1 of the present embodiment is a so-called “draft type” issuance form in which there is no back feed for performing printing while continuously conveying the belt-like continuous body 2 to the issuance port 11 side (in the direction of arrow F). belongs to.

Here, the belt-like continuous body supply device will be mainly described with reference to FIG.
FIG. 2 is an enlarged schematic explanatory view in the vicinity of the supply axis on which the belt-like continuous supply device 20 is formed.
As shown in the figure, the belt-like continuous supply device 20 includes a roll diameter remaining amount detecting unit 21 and a tension generating unit 22, and these units are connected to the control unit 8.

  The roll diameter remaining amount detecting sensor 21 as the roll diameter remaining amount detecting means has three reflections arranged in a line on the radius of the side surface of the belt-like continuous body 2 from the upper end surface of the supply shaft 3 upward in the figure. Sensor 21a, 21b, 21c, and the remaining amount of the belt-like continuum 2 is determined from the position of the reflection sensor 21a, 21b, 21c that has detected the belt-like continuum 2 and the position that has not been detected It can be detected. That is, when the three reflection sensors 21a, 21b, and 21c detect the belt-like continuous body 2, or the reflection sensor 21a near the supply shaft 3 and the reflection sensor 21b in the center detect the belt-like continuous body 2, When only the reflection sensor 21c farthest from 3 has not detected the belt-like continuum 2, the roll diameter of the belt-like continuum 2 is large, and only the reflection sensor 21a detects the belt-like continuum 2. When the other reflection sensors 21c and 21b are not detected, the roll diameter is a medium diameter state. Further, when the three reflection sensors 21a, 21b and 21c have not detected the belt-like continuous body 2, It is possible to detect that the diameter is a small diameter state.

The tension generating mechanism 22 as the tension generating unit includes a tension applying roller 23 and an urging unit 25.
The tension applying roller 23 is in contact with the peripheral surface of the belt-like continuous body 2 and is connected to a motor (not shown) so as to be rotatable.
Further, the “biasing means” is composed of, for example, an elastic member 25 such as a coil spring, and is interposed between the casing (not shown) and the tension applying roller 23 that comes into contact with the peripheral surface of the continuous body 2. The tension applying roller 23 is always urged to the belt-like continuous body 2 and the tension applying roller 23 provided at the tip is rotatably supported. That is, the belt-like continuous body 2 printed by the printing unit 7 while being fed from the supply shaft 3 toward the issue port 11 on the downstream side is gradually reduced in roll diameter, but the elastic member 25 is a tension applying roller. 23 is constantly urged to the peripheral surface of the belt-like continuous body 2, so that the tension applying roller 23 is always in contact with the peripheral surface of the belt-like continuous body 2 following the reduction of the roll diameter.
Further, the tension applying roller 23 changes the rotation direction according to the roll diameter of the belt-like continuous body 2 detected by the roll diameter remaining amount detection sensor 21. That is, when the roll diameter is large, the belt-like continuum 2 is rotated in the direction (arrow F direction in FIG. 2) to be drawn out downstream, and when the roll diameter is small, the belt-like continuum is rotated. 2 is fed out and rotated in the reverse direction (the same as the arrow B direction) <arrow b direction>. Further, when the diameter is medium, the tension applying roller 23 is controlled not to rotate. Yes. Note that the biasing direction of the tension applying roller 23 biased by the elastic member 25 is preferably a direction toward the supply shaft 3.

Next, with reference to FIG. 1 and FIG. 2, the operation state of the strip | belt-shaped continuous body supply apparatus 20 in the label printer 1 is demonstrated.
The belt-like continuous body 2 is attached to the supply shaft 3 after retracting the tension applying roller 23 in a direction away from the supply shaft 3 against the urging force of the elastic member 25 of the belt-like continuous supply device 20, and this time, the tension is applied. When the hand is released from the roller 23, the tension applying roller 23 is urged while being in contact with the peripheral surface of the belt-like continuous body 2.

The tip of the belt-like continuous body 2 attached to the supply shaft 3 is picked with a finger and pulled out to the issue port 11 side, and is sandwiched between the thermal head 5 and the platen 6 of the printing unit 7.
Next, when a power supply (not shown) is turned on and the “issue” operation is executed by inputting the number of issued sheets, the belt-like band is formed by the rotation of the platen 6 which is sandwiched between the thermal head 5 and the platen 6 and rotates via the motor 9 and the belt 10. The continuous body 2 is printed on the belt-like continuous body 2 by the thermal head 5 while being conveyed toward the issuing port 1 side (in the direction of arrow F), and issues a label or tag not shown.

At the time of feeding out the label or tag <not shown>, the roll diameter of the belt-like continuous body 2 is such that the reflection sensors 21a, 21b of the roll diameter remaining amount detection sensor 21 arranged in a line on the radius of the side surface of the belt-like continuous body 2. 21c. That is, when the reflection sensor 21a near the supply shaft 3 and the reflection sensor 21b at the center detect the belt-like continuous body 2 and the reflection sensor 21c near the peripheral surface does not detect the belt-like continuous body 2 or is in a detected state. The roll diameter of the belt-like continuous body 2 is determined to be a large diameter shortly after use. When the roll diameter is large, the tension applying roller 23 urged by the elastic member 25 on the peripheral surface of the belt-like continuous body 2 is rotated in the conveying direction (direction indicated by arrow F) (direction f in FIG. 2). That is, the belt-like continuum 2 sandwiched between the thermal head 5 and the platen 6 and conveyed in the direction of the issuing port 11 (in the direction of arrow F) is subjected to a certain tension due to the rotation of the platen 6, but the belt-like continuum 2 When the roll diameter of the roller is large and “heavy”, the feeding is slightly congested, and the print position may be shifted in the forward (arrow F direction) direction. Therefore, the belt-like continuous body 2 is synchronized with the rotation of the platen 6. The tension applying roller 23 is rotated (direction f in FIG. 2) in the direction in which the belt-shaped continuous body 2 is fed out (direction F in FIG. 2) to smoothly feed out the belt-like continuous body 2.
On the other hand, when all of the reflection sensors 21a, 21b, and 21c have not detected the belt-like continuous body 2, it is determined that the belt-like continuous body 2 has a small remaining amount and a small roll diameter. When the roll diameter is small, the tension applying roller 23 urged by the elastic member 25 on the peripheral surface of the belt-like continuous body 2 is fed out and rotated in the reverse direction (arrow B direction) (direction b in FIG. 2). That is, the belt-like continuous body 2 that is sandwiched between the thermal head 5 and the platen 6 and is fed out and conveyed in the direction of the issuing port 11 (in the direction of arrow F) is subjected to a certain tension due to the rotation of the platen 6. When the roll diameter of the body 2 is small and “light”, the feeding becomes excessive and there is a high possibility that the printing position will shift backward (arrow B direction), so tension is applied in synchronization with the rotation of the platen 6. The roller 23 is fed out and rotated in the reverse direction (arrow B direction) (direction b in FIG. 2) to suppress excessive feeding of the belt-like continuous body 2.
When only the reflection sensor 21a near the supply shaft 3 detects the belt-like continuum 2, the other reflection sensor 21b at the center and the reflection sensor 21c farthest from the supply shaft 3 detects the belt-like continuum 2. The roll diameter of the belt-like continuous body 2 is a medium diameter, and it is determined that the weight <remaining amount> is suitable for feeding by a constant tension through the rotation of the platen 6. In this case, the tension applying roller 23 is in a rotation-free state so as not to be actively rotated by a power saving motor shown in the drawing. Alternatively, for example, the tension applying roller 23 in contact with the peripheral surface of the belt-like continuous body 2 is temporarily retracted by advancing and retreating means such as a solenoid (not shown), and the belt-like continuous body 2 is not involved without the tension applying roller 23 being involved. It is also possible to feed out in the feeding direction <arrow F direction> only by its own weight.

  As described above, the roll diameter remaining amount detection sensor 21 detects the remaining roll diameter of the belt-like continuous body 2 that is mounted on the supply shaft 3 and fed out. When the roll diameter is large, the belt-like continuous body 2 is detected. The tension applying roller 23 of the tension generating mechanism 22 that is in contact with the circumferential surface of the elastic member 25 as an urging means is rotated in the direction F in which the belt-like continuous body 2 is fed out, and the roll diameter is increased. When the diameter is small, the tension applying roller 23 is fed out and rotated in the reverse direction B in synchronism with the rotation of the platen 6. When the belt-like continuous body 2 is heavy with a large diameter, the tension is applied to the platen 6. Thus, the rotation of the tension applying roller 23 rotates in the direction F of feeding the belt-like continuous body 2 to assist the feeding of the belt-like continuous body 2. Pull out tension applying roller 23 as much as possible It is intended to suppress the excess feeding of the strip continuum 2 rotates b in the reverse direction B.

Next, another embodiment will be described mainly based on FIGS.
In the following description, the same parts as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
FIG. 3 is a schematic side view showing a main part of a label printer provided with a belt-like continuous body supply device according to another embodiment, FIG. 4 is a perspective view of the main part near the supply shaft, and FIG. 5 is a belt-like continuous supply device. FIG. 3 is an enlarged schematic explanatory view corresponding to FIG. 2 in the vicinity of a supply axis on which is formed.
The label printer 41 mainly includes a supply shaft 32 for mounting the belt-like continuous body 2 wound in a roll shape, a position detection sensor 4, a printing unit 7 including a thermal head 5 and a platen roller 6, and a cutting device. 33, the belt-like continuous body supply device 30, and the control unit 8, and the control unit 8 is connected to the above-described units so that the operation of each unit can be controlled.
Mainly, as shown in FIG. 4, a continuous body type identification label in which “identification ID” indicating a medium type of the belt-like continuous body 2 is printed on the inner side of the core member 2 a with a barcode. 34 is affixed.
The supply shaft 32 rotatably supports the belt-like continuous body 2 and is provided with a barcode reading unit 35 for reading the continuous body type identification label 34, and the continuous body of the belt-like continuous body 2 that is mounted. The type identification label 34 is read by the barcode reading unit 35 and the read “identification ID <not shown>” is sent to the connected control unit 8.
The cutting device 33 is composed of a movable blade 33a and a fixed blade 33b, and is provided in the vicinity of the issuing port 11. The belt-like continuous body 2 that has been fed out has a desired timing by the intersection of the movable blade 33a and the fixed blade 33b. It is designed to cut with

Next, the belt-like continuous body supply device 30 will be mainly described with reference to FIG.
The belt-like continuous supply device 30 includes a roll diameter remaining amount detecting unit 31 and a tension generating unit 22, and these units are connected to the control unit 8.
The roll diameter remaining amount detecting sensor 31 as the roll diameter remaining amount detecting means includes five reflection sensors 31a, 31b, 31c arranged in a line on the radius of the side surface of the belt-like continuous body 2 attached to the supply shaft 32. It is comprised by 31d and 31e, and is arrange | positioned diagonally upward with respect to the perpendicular of the supply axis | shaft 32. As shown in FIG. The remaining amount of the belt-like continuous body 2 can be detected from the position of the reflection sensor 31a to 31d where the belt-like continuous body 2 is detected and the position where the belt-like continuous body 2 is not detected. That is, the second reflection sensor 31b, the third reflection sensor 31c at the center, the fourth reflection sensor 31d, and the outermost side in order from the first reflection sensor 31a close to the supply shaft 32 upward in FIG. The roll diameter of the belt-like continuous body 2 can be detected in five steps up to the fifth reflection sensor 31e.
The elastic member 25 as the urging means supports the tension applying roller 23 at the tip so as to be rotatable, and constantly urges the tension applying roller 23 to the peripheral surface of the belt-like continuous body 2 by the urging force. The tension applying roller 23 is urged in a direction toward the supply shaft 32 from above in a perpendicular direction passing through the supply shaft 32 in FIG.

Next, the rotation direction of the tension applying roller 23 will be described with reference to FIG.
6 shows, for example, rewritable flash EEPROM (electrically erasable and programmable ready only memory) or other storage means 36 stored in the storage means 36 for identifying ID (medium type) and applying tension for each roll diameter. It is the list of the rotation direction according to the stage of the roller 23. FIG.
As described above, the strip-shaped continuous body 2 can adopt a “label continuous body”, “continuous body without mount”, “tag continuous body”, and the like, and not only the weight differs depending on the thickness of each, Since the “weight” varies depending on the paper quality and paper width even for the same “continuous label”, it is difficult to keep the tension of the continuous strip 2 via the platen 6 constant. Depending on (medium type), the feed direction F or the feed reverse direction B is finely rotated.
The strip-like continuum 2 with the identification ID “T01” in FIG. 9 is, for example, a wide “tag continuum”, and “T02” is a “tag continuum” narrower than “T01”.
The band-shaped continuous body 2 having the identification ID “R01” is a wider “label continuous body” that is thinner than the “tag continuous body”, and “R02” is a band-shaped continuous body narrower than “R01”. 2.
The band-like continuum 2 of “T01” is detected by the fifth sensor position, that is, the first to fifth reflection sensors 31a to 31e, or the first to fourth reflections. When the belt-like continuum 2 is detected by the sensors 31a to 31d and only the fifth reflection sensor 31e has not detected the belt-like continuum 2, the roll diameter is large and “heavy”. The tension applying roller 23 biased and abutted against the peripheral surface of the body 2 is set to “F”, that is, to rotate in the feeding direction F. Hereinafter, in the fourth and third sensor positions, Similarly, in the feeding direction F, the rotation of the tension applying roller 23 is free at the second sensor position, and “B” at the first sensor position where the roll diameter is small, that is, the feeding reverse. Rotating in direction B The are to.
Further, the tension applying roller 23 is configured to rotate in the feeding reverse direction B in synchronism with the rotation of the platen 6 during “back feed” described later (details of “back feed” will be described later). ).

Next, the operation state of the strip-shaped continuous body supply device 30 in the label printer 41 will be described with reference to FIGS.
The difference between the label printer 1 of the previous embodiment and the label printer 41 of the present embodiment is that a cutting device 33 is provided and a bar code reading unit 35 is provided on the supply shaft 32. is there.
As shown in FIG. 4, the belt-like continuous body 2 is attached to the supply shaft 32, the tip of the belt-like continuous body 2 is picked up with a finger and pulled out to the issuing port 11 side between the thermal head 5 and the platen 6 of the printing unit 7. When the power supply (not shown) is turned on, the supply shaft 32 reads the “identification ID” of the continuous body type identification label 34 affixed to the core member 2a of the belt-like continuous body 2, and the roll diameter remaining amount detection sensor 31 detects the roll diameter of the belt-like continuous body 2 based on the detection positions of the reflection sensors 31a to 31e. The read “identification ID” and the roll diameter are sent to the connected control unit 8, and the corresponding identification ID and roll diameter remaining stage of the belt-like continuous body 2 stored in the storage means 36 are selected. .
Next, when the “issue” operation is executed, the belt-like continuous body 2 is fed and transported to the issuing port 11 side (in the direction of arrow F) by the rotation of the platen 6, and desired printing is performed on the belt-like continuous body 2 by the thermal head 5. When printing of one label or tag (not shown) is completed, the next <second sheet> label or tag is not printed, and it is continuously cut to the issuing port 11 side (arrow F direction). Position the device 33 and cut the first sheet. When the belt-like continuous body 2 is transported in the feed-out direction F, the tension applying roller 23 that is biased and abutted against the peripheral surface of the belt-like continuous body 2 by the biasing force is stored to assist or suppress the tension of the platen 6. It rotates (f or b) in the rotation direction (F or B) set in the means 36.
Further, after cutting, the belt-like continuous body 2 positions the label or tag printing position on the thermal head 5 when the platen 6 back-feeds (carrys out in the reverse direction B) to perform printing on the second sheet. . At the time of this back feed, the tension applying roller 23 rotates b in the reverse feeding direction B in synchronism with the rotation in the reverse feeding direction B of the platen 6.

As described above, the continuous body type identification label 34 affixed to the inside of the core member 2a of the belt-like continuous body 2 attached to the supply shaft 32 is read by the barcode reading unit 35 provided on the supply shaft 32, and the roll The diameter remaining amount detection sensor 31 detects the roll diameter of the belt-like continuum 2 in five stages, and for each identification ID (medium type) (not shown) read by the continuum type identification label 34, and for the roll diameter. For each detected stage, a storage means 36 is provided in which the rotation direction of the tension applying roller 23 is set to the feeding direction F or the feeding reverse direction B. When the belt-like continuous body 2 is fed in the feeding direction F by the rotation of the platen 6, the storage is performed. Based on the rotation direction set in the means 36, the tension applying roller 23 is rotated (f or b) under the control means 8 to assist or suppress the feeding of the belt-like continuous body 2. Since the size of the roll diameter of the strip continuum 2 for each media type, and by extension in which can realize a constant feed to meet the "Weight".
Further, at the time of back feed, the tension applying roller 23 is rotated b in the same direction in synchronism with the rotation of the platen 6 in the reverse feeding direction B, so that there is no driving means on the supply shaft 32. Even if the second core member 2 a is not fitted to the supply shaft 32, back feed is possible.
About another structure, an effect | action, and an effect, detailed description is abbreviate | omitted about the same as previous embodiment.

It should be noted that the configuration and operation of the above-described embodiment are examples, and it goes without saying that they can be changed as appropriate without departing from the spirit of the present invention.

It is a schematic side view which shows the principal part of the label printer provided with the strip | belt-shaped continuous body supply apparatus which concerns on this invention. It is an expansion schematic explanatory drawing of the supply shaft vicinity in which the strip | belt-shaped continuous supply apparatus was formed similarly. It is a schematic side view which shows the principal part of the label printer provided with the strip | belt-shaped continuous body supply apparatus which concerns on other embodiment. It is a principal part perspective view of the supply shaft vicinity. FIG. 3 is an enlarged schematic explanatory view corresponding to FIG. 2 in the vicinity of the supply axis where the belt-like continuous supply device is formed. It is explanatory drawing of the memory | storage means to which the rotation direction of the tension | tensile_strength provision roller was set similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Label printer 2 Strip | belt-shaped continuous body 2a Core member 3 Supply part (supply shaft)
4 position detection sensor 4a light emitting part 4b light receiving part 5 thermal head 6 platen roller <platen>
7 Printing unit 8 Control unit 9 Stepping motor <Motor>
DESCRIPTION OF SYMBOLS 10 Belt 11 Issue port 20 Strip | belt-shaped continuous body supply apparatus <1st embodiment>
21 Roll diameter remaining amount detecting means <Roll diameter remaining amount detecting sensor>
21a, 21b, 21c Reflection sensor 22 Tension generating means <Tension generating mechanism>
23 Tension applying roller 24 Biasing means (elastic member, coil spring)
30 belt-like continuous body supply device <second embodiment>
31 Roll diameter remaining amount detecting means <Roll diameter remaining amount detecting sensor>
31a, 31b, 31c, 31d, 31d Reflection sensor 32 Supply shaft 33 Cutting device 33a Movable blade 33b Fixed blade 34 Continuous body type identification label 35 Bar code reading unit 36 Storage means 41 Label printer

Claims (2)

A supply unit that rotatably mounts a rolled belt-like continuous body and feeds it downstream,
Roll diameter remaining amount detecting means for detecting the remaining roll diameter of the belt-like continuous body mounted and fed to the supply unit;
A rotatable tension applying roller that comes into contact with the peripheral surface of the belt-like continuous body mounted on the supply unit, and the tension applying roller that follows the roll diameter of the belt-like continuous body that is drawn out and contracts the belt. Tension generating means for applying a constant tension to the belt-like continuum mounted on the supply unit,
Control means for controlling the tension generating means based on the remaining roll diameter by the remaining roll diameter detecting means;
A belt-like continuous body supply device comprising:
In the detection by the roll diameter remaining amount detecting means, when the roll diameter of the belt-like continuous body is detected to be large, the tension applying roller is rotated in the feeding direction by the control means, and when the roll diameter is medium A belt-like continuous body supply device, wherein the tension applying roller is not rotated and the tension applying roller is rotated in the reverse direction by the control means when the roll diameter is small. A supply unit that rotatably mounts a rolled belt-like continuous body and feeds it downstream,
A reading means for detecting a medium type of the belt-like continuum attached to the supply unit;
Roll diameter remaining amount detecting means for detecting the roll diameter remaining amount of the belt-like continuous body mounted on the supply unit and being fed out in a plurality of stages;
A rotatable tension applying roller that comes into contact with the peripheral surface of the belt-like continuous body mounted on the supply unit, and the tension applying roller that follows the roll diameter of the belt-like continuous body that is drawn out and contracts the belt. Tension generating means for applying a constant tension to the belt-like continuum mounted on the supply unit,
Storage means for setting the rotation direction of the tension applying roller in the feeding direction or the feeding reverse direction for each medium type of the belt-like continuous body and for each detected stage of the remaining roll diameter.
Control means for controlling the belt-like continuous body in the feeding-out direction or the feeding-reverse direction via the tension generating means based on the rotation direction of the tension applying roller set in the storage means. Band-like continuum supply device.

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