JP2006321611A - Winding device, and printer using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding device, capable of detecting both a vertical surface and a horizontal surface of a recording medium, and a printer using that. <P>SOLUTION: This printer 1 is provided with a carrying belt 202 to carry a recording medium P while sucking it, a recording means to carry out printing to the recording medium P by a flat printing surface of the carrying belt 202, a winding means 3 to detect the recording medium P after printing by a detection sensor 306, and carry out winding action. The winding means 3 is provided with an angle changing means to change an installation angle of the detection sensor 306 depending on the carrying passage of the recording medium P. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a winding device for winding a recording medium printed by an ink jet printer or the like, and a printer using the winding device.

  Conventionally, image recording on a long recording medium such as a cloth has been performed by a printer such as an ink jet printer, and as a winding device for winding the recording medium after image recording, the recording medium is an image recording surface, non-image recording 2. Description of the Related Art An apparatus that winds a recording medium while holding the recording medium by providing a pair of rollers that are sandwiched from both surfaces is known (see, for example, Patent Document 1 and Patent Document 2).

  In addition, when the recording medium after image recording is wound in a roll shape, there is a risk of damaging the image recording surface when the wound recording media come into contact with each other. When the recording medium is a fabric, When wound under tension, a force that causes the fabrics to return to the original state is generated, and the fabrics rub against each other and become damaged. As a result, even if high-quality image recording is performed by the image recording apparatus, it is useless. There is a problem.

For this reason, there has been proposed a recording medium winding device that winds while winding an auxiliary material such as a slip sheet together with the recording medium so that the recording medium does not rub after being wound (for example, And Patent Document 3).

  However, in the recording medium immediately after the image recording by the printer, the ink on the image recording surface may not be dry, and when the recording medium is wound, the recording medium is both the image recording surface and the non-image recording surface. In the case where the recording medium is held by holding the roller from between, the image recording surface comes into contact with the roller and the ink adheres to the roller, and the ink adhering to the roller reattaches to the recording medium and There was a drawback that the image recording surface was soiled.

Further, in the case of a device for winding an auxiliary material such as a mount while being wound together with a recording medium, conventionally, an auxiliary material roller around which the auxiliary material is wound is usually disposed below the winding roller. Then, if the auxiliary material runs out during the winding operation of the recording medium, it takes time to replace the auxiliary material roller, and the recording medium is wound up without the auxiliary material, and the image recording surface is damaged, or the auxiliary material roller is damaged. There is a drawback that the image recording operation of the printer has to be interrupted in order to replenish the material.

As a technique for solving such a drawback, the present applicant previously proposed the prior patent 1.
Japanese Patent Laid-Open No. 10-147462 JP 2001-72285 A JP-A-11-301892

Prior patent 1

  Japanese Patent Application No. 2004-18443

  The technique described in the prior application Patent 1 will be described with reference to FIG. In FIG. 13, a printer 50 includes a recording unit 51 that records an image on a recording medium P, and a winding unit 52 that is provided on the downstream side of the recording unit 50 and winds up the recording medium P on which image recording has been performed. It is configured.

  53 is a first side plate constituting the winding means 52, and 56 is a second side plate provided close to the first side plate 53. A caster 54 and a stopper 55 are provided at the lower part of the apparatus.

  A cutout portion 57 is formed in the second side plate 56, and a bearing (not shown) is provided in the cutout portion 57, and a winding roller 58 is rotatably supported by the bearing. The drive mechanism of the winding roller 58 is not shown. The recording medium P discharged from the recording unit 51 can be wound by the rotation of the winding roller 58.

  In the drawing, the first side plate and the second side plate on the near side are not shown.

  Reference numeral 60 denotes a tension roller that contacts the non-recording surface side when the recording medium P is wound and applies a certain tension, and is provided on the inner surface of the opposing first side plates 53 and 53 (one is not shown). It has been. The surface of the tension roller 60 is made of a highly adhesive material such as a resin, and a certain tension is applied to the recording medium P by generating a frictional force between the recording medium P and the tension roller 60. ing.

  The recording medium P is held by the tension roller 60 and is conveyed toward the take-up roller 58. Until the take-up by the take-up means 52 is started, the recording medium P is between the record means 51 and the take-up means 52. It hangs down by its own weight and causes slack.

  Reference numeral 61 denotes a slack detection sensor for detecting the amount of slack in the recording medium P. For example, a slack detection sensor includes a light emitting section that includes a light emitting element that emits light such as infrared rays and a light receiving section that includes a light receiving element that senses emitted light. Become. The light receiving unit is configured to receive light emitted from the light emitting unit. However, when the recording medium P is gradually suspended by its own weight and passes between the light emitting unit and the light receiving unit, the irradiation light is blocked by the recording medium P. Is not received by the light receiving unit. Based on this principle, the amount of slack in the recording medium P is detected by the detection sensor 61. As a result, it is detected that the recording medium P hangs down to a predetermined position and an amount of slack suitable for applying tension to the recording medium P is formed.

  The slack detection sensor 61 is configured to keep the height of the light emitting unit and the light receiving unit substantially the same.

  As described above, in the prior patent 1, the recording medium P is conveyed from right to left (in the direction from the recording unit 51 to the winding unit 52) in the drawing. Accordingly, the recording means 51 ejects ink onto the recording medium P to print an image, and the recording medium P after printing creates a slack between the recording means 51 and the tension roller 60 of the winding means 52, and a slack detection sensor 61. When the recording medium P is detected, the winding roller 58 rotates and winds up the recording medium P. Since the tension roller 60 is made sticky and disposed on the back surface of the image surface, the tension roller 60 can support the recording medium P by one, and there is an advantage that there is no fear of offset.

  However, in the prior application 1, in order to detect the slack due to the weight of the recording medium P, it is necessary to arrange the slack detecting sensor 61 of the winding means 52 so as to detect the vertical surface of the recording medium P.

  However, when the conveyance method of the printer uses the adhesive belt to maintain the suction force, there is a case where the separation from the adhesive belt is impossible only by the weight of the recording medium (see FIG. 14).

  FIG. 14 shows a state in which the recording medium P after printing is bridged between the tension roller 60 of the winding means 52 without being peeled off while being stuck to the adhesive belt of the recording apparatus (inkjet printer). ing.

  FIG. 15 shows a slack detection sensor 61 used in the prior application Patent 1. Although the slack detection sensor 61 is shown in a simplified manner in FIG. 13, it is as shown in FIG. 15 when viewed from the upper surface of the winding means 52. An optical path 64 connecting the light emitting part / light receiving part 62 of the slack detection sensor 61 and the reflecting plate 63 is installed so as to be inclined with respect to the recording medium P. The presence of the recording medium P is detected when the recording medium P blocks the optical path 64 as shown in FIG. Therefore, in FIG. 13, it is possible to detect the vertical plane of the recording medium P, but it is not possible to detect the horizontal plane of the recording medium P.

  Therefore, since it is difficult to detect the horizontal plane with the slack detection sensor for detecting the vertical plane of the recording medium disclosed in the prior application, it is desired to develop a technique capable of detecting the horizontal plane.

  Further, if the slack detection sensor 61 cannot detect the recording medium, the state shown in FIG. 14 may further progress and the recording medium that is still attached to the adhesive belt may be caught in the recording means main body. For this reason, it is desired to develop a technique capable of forcibly peeling the recording medium from the adhesive belt of the printer in a state where tension is applied between the adhesive belt of the recording means and the winding means.

  Furthermore, if there is a difference in the peeling point between the adhesive belt and the recording medium, there is a problem that the conveyance amount of the recording medium changes and the printing quality varies, and these solutions are desired.

  Therefore, an object of the present invention is to provide a winding device that can detect both a vertical surface and a horizontal surface of a recording medium, and a printer using the winding device.

  Further, according to the present invention, even if an adhesive belt is used as the conveying unit of the recording unit, the recording medium in a state where tension is applied between the recording unit and the winding unit is pulled by the winding roller, and the recording medium is forcibly separated. It is an object of the present invention to provide a winding device that can be used and a printer using the winding device.

  Furthermore, the present invention makes it possible to change the peeling point between the conveyance belt and the recording medium depending on the type of the recording medium, and improves the conveyance accuracy of the printer and can provide a higher quality printed matter, and a printer using the winding device It is an issue to provide.

  The above-described problems of the present invention are solved by the following inventions.

(Claim 1)
In a winding device having a winding means for detecting a printed recording medium by a detection sensor and performing a winding operation,
An apparatus for winding a recording medium, comprising angle changing means for changing an attachment angle of the detection sensor in accordance with a conveyance path of the recording medium.

(Claim 2)
A conveying belt that sucks and conveys the recording medium; a recording unit that prints on the recording medium on a flat print surface of the conveying belt; and a winding that performs a winding operation by detecting the printed recording medium by a detection sensor And a printer comprising:
The printer according to claim 1, wherein the winding unit includes an angle changing unit that enables an attachment angle of the detection sensor to be changed according to a conveyance path of the recording medium.

(Claim 3)
A conveying belt that sucks and conveys the recording medium; a recording unit that prints on the recording medium on a flat print surface of the conveying belt; and a winding that performs a winding operation by detecting the printed recording medium by a detection sensor And a printer comprising:
A printer characterized in that the mounting position of the detection sensor can be changed above the flat printing surface of the recording means.

(Claim 4)
Sensor position adjustment that can adjust the position of the input unit that inputs the specifications of the recording medium, the torque limiter information input unit that inputs the data signal from the torque limiter that measures the adhesiveness of the endless belt, the control unit, and the detection sensor A mechanism and a drive motor for driving the take-up roller;
The recording medium information from the input unit and the adhesive data signal from the torque limiter information input unit are input, and the control unit calculates the position of the detection sensor based on the input information and signal, and calculates Based on the result, a signal is input to the sensor position adjustment mechanism to adjust the position of the detection sensor, and the drive motor is driven until the recording medium conveyed by the detection signal can be detected to wind the recording medium. A printer which is wound around a take-up roller and performs control for determining a peeling point between the endless belt and the recording medium.

(Claim 5)
5. The printer according to claim 4, wherein the printer stores and stores the model number and elasticity of the recording medium in association with each other.

  According to the present invention, according to the first aspect of the present invention, it is possible to provide a winding device that can detect both a vertical plane and a horizontal plane of a recording medium.

  Further, according to the invention described in claim 2, it is possible to provide a printer capable of obtaining the same effect as that of the invention described in claim 1.

  According to the invention of claim 3, even if an adhesive belt is used as the conveying means of the recording means, the recording medium in a state in which tension is applied between the recording means and the winding means is pulled by the take-up roller and forced. Thus, it is possible to provide a printer that can peel the recording medium.

  According to the invention described in claim 4, it is possible to change the peeling point between the conveyance belt and the recording medium according to the type of the recording medium, and to provide a printer capable of improving the conveyance accuracy of the printer and providing a higher quality printed matter. can do.

  Further, according to the invention described in claim 5, it is possible to change the peeling point between the conveyance belt and the recording medium according to the type of the recording medium, and to provide a printer capable of improving the conveyance accuracy of the printer and providing a higher quality printed matter. can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view of a combination of a winding means in which the direction of the slack detection sensor is rotated and a recording means employing an adhesive belt.

  In the present invention, an apparatus provided with both the winding means and the recording means is referred to as a printer, and the winding apparatus means that provided with at least the winding means.

  In the figure, reference numeral 1 denotes a printer, which includes at least a recording unit 2 and a winding unit 3.

  Examples of the printer to which the present invention can be applied include an inkjet printer. In the following description, an inkjet printer will be described as an example.

  The recording unit 2 includes a recording unit main body 200. The recording unit main body 200 is provided with, for example, an endless belt 202 that is rotated by three rollers 201, 201, 201, and a flat portion of the endless belt 202 is printed. The image is recorded on the recording medium P at the flat portion.

  When an adhesive belt is used as the endless belt 202, an adhesive belt having an adhesive applied to the belt surface is used. However, the belt surface is not particularly limited as long as the belt surface has adhesiveness. For example, a non-slip belt (manufactured by Mochida Corporation) can be used.

  The recording medium P may be any of various recording materials such as various papers such as plain paper, recycled paper, and glossy paper, various fabrics, fabrics, nonwoven fabrics, resins, metals, and glass.

  FIG. 2 is an enlarged side view of the endless belt portion. In FIG. 2, reference numeral 203 denotes a torque limiter. FIG. 3 is a plan view of the torque limiter, and FIG. 4 is a front view thereof.

  The torque limiter 203 detects the degree of adhesion of the endless belt, and generates a trigger signal for controlling the degree of adhesion to be constant.

  In FIG. 1, 204 is a caster, and 205 is a stopper.

  The recording means 2 records an image by ejecting ink onto the recording medium P based on predetermined image information (signals), and the recording medium P on which the image recording has been performed is discharged from the recording means 2 and is downstream. It is sent to the winding means 3.

  In FIG. 1, the side surface of the winding means 3 is shown. For convenience of explanation, the structure viewed from the direction in which the recording medium P is conveyed is not shown, and therefore the structure viewed from the side surface will be described.

  In FIG. 1, the winding means 3 includes a first side plate 300 and a second side plate 301, and the first side plate 300 and the second side plate 301 each include a first side plate and a second side plate facing each other. Is not shown.

  Reference numeral 302 denotes a gantry that supports the second side plate 301, and a caster 303 and a stopper 304 are provided below the gantry 302. Further, casters and stoppers can be provided below the first side plate 300 as necessary.

  A tension roller 305 is provided on the opposing first side plate 300. The tension roller 305 contacts the non-recording surface side when winding the recording medium P, and fulfills a function of applying a certain tension. The surface of the tension roller 305 is formed of a highly adhesive material such as resin, and a certain tension is applied to the recording medium P by generating a frictional force between the recording medium P and the tension roller 305. ing. The tension roller 305 only needs to be in a state in which the surface of the tension roller 305 generates a frictional force with the recording medium P. Preferably, the tension roller 305 is made of a metal or resin, and the surface is adhered to the tension roller 305. The surface treatment is performed with a material having a property. The surface treatment may be any of application with an adhesive material, coating with an adhesive material, blasting for forming surface irregularities, and the like.

  Reference numeral 306 denotes a detection sensor for detecting the recording medium P in the process in which the recording medium P is transported from the recording unit 2 toward the winding unit 3, for example, a light emitting device incorporating a light emitting element that emits light such as infrared rays. And a light receiving part incorporating a light receiving element for sensing the emitted light. The light receiving unit is configured to receive light emitted from the light emitting unit, but when the recording medium P passes between the light emitting unit and the light receiving unit, the irradiated light is blocked by the recording medium P and received by the light receiving unit. Not. The recording medium P is detected based on this principle.

  In a preferred embodiment of the present invention, the detection sensor 306 includes a light emitting unit and a light receiving unit, and a reflecting plate is used separately. The detection sensor 306 including the light emitting unit and the light receiving unit is provided on the opposing first side plate 300. A reflection plate is provided on one side and a reflection plate is provided on the other side.

  One embodiment of the angle adjusting means of the detection sensor used in the present invention will be described with reference to FIG.

  FIG. 5 shows a process in which the recording medium P is sent to the tension roller 305. In FIG. 5, the detection sensor 306 includes a support rod 307 and a light emitting / receiving unit 308. For example, as shown in the drawing, the support rod 307 is supported on the support shaft. It is configured to be able to rotate 90 degrees via 309. When the support rod 307 faces in the vertical direction, the slack of the recording medium P can be detected. Further, when the support rod 307 faces in the horizontal direction, the recording medium P can be detected when the recording medium P has been transported substantially in the horizontal direction. In the drawing, A is an example in which the recording medium P conveyed in the horizontal direction is detected, and B is an example in which the recording medium P having slack is detected.

  Although the method of attaching the detection sensor 306 is not limited, as shown in FIG. 6, for example, a support rod 307 is attached to the inner surface of the first side plate 300A, and the reflection plate 310 is attached to the inner surface of the opposing first side plate 300B. . Reference numeral 310a denotes a support portion of the reflection plate 310, which is fixed to the inner surface of the first side plate 300B. As shown in FIG. 7, the reflection plate 310 is configured so that the reflection angle can be adjusted. The angle adjustment method is not particularly limited.

  Next, another preferred embodiment of the present invention will be described with reference to FIG.

  The example of FIG. 8 shows the behavior of the recording medium P between the recording means 2 and the winding means 3 when an adhesive belt is used as the endless belt 202. FIGS. 8A and 8B show detection sensors. It can be seen that the height position of 306 is different, and the point at which the recording medium P peels from the endless belt 202 changes due to the difference.

  That is, in FIG. 8A, the recording medium P is separated from the endless belt 202 around the arc portion. In FIG. 8B in which the position of the detection sensor 306 is moved upward, the recording medium P is peeled off from the endless belt 202 before reaching the arc portion.

  FIG. 9 shows an enlarged view of the peeling point of the recording medium shown in FIG. 9A, the arc portion 206 has a difference in the radial direction corresponding to the thickness L of the recording medium P, and the surface area of the recording medium P is different. When the recording medium P is not stretchable, the outer surface of the arc pulls the recording medium P in the flat portion, which affects the transport amount of the recording medium P.

  In FIG. 9B, since the recording medium P does not reach the arc portion 206, the phenomenon as shown in FIG. 9A does not occur.

  Since the adhesiveness with the endless belt 202 differs depending on the type of the recording medium P, the peeling point changes. Therefore, it is necessary to move the detection sensor 306 to an appropriate position suitable for each recording medium P.

  In the present invention, since the position of the detection sensor 306 can be adjusted, the peeling point can be changed.

  Next, in FIG. 1, 311 is a first cutout formed in the second side plate 301, and an auxiliary material roller 312 is provided in the cutout 311 via a bearing (not shown). The auxiliary material H is provided between the recording media P in order to prevent the image recording surface of the recording medium P taken up by the take-up roller 313 from being damaged by contacting the non-image recording surface of the recording medium P. Is sandwiched between them so that they do not come into direct contact. The auxiliary material H is, for example, a sheet-like body such as a slip sheet, and has substantially the same width as the recording medium P. The winding roller 313 is rotatably provided in the second notch 314.

  Further, the take-up roller 313 takes up the recording medium P while applying a certain tension by the tension roller 305. The winding roller 313 is rotationally driven by a drive motor (not shown).

  A torque adjusting mechanism (not shown) for adjusting the rotational torque of the tension roller 305 can be provided at one end of the tension roller 305. The torque adjustment mechanism is not particularly limited as long as it can adjust the rotational torque of the tension roller 305.

  Next, control of a printer having a recording unit and a winding unit in the present embodiment will be described with reference to FIG.

  FIG. 10 is a control block diagram of the printer. In the figure, 330 is an input unit 330 for inputting the specifications of the recording medium P, 331 is a torque limiter information input unit, 332 is a control unit, 333 is a sensor position adjusting mechanism, and 313 is a drive motor for the winding roller 313.

  The specifications of the recording medium P input by the input unit 330 include material, stretchability, thickness information, etc., and these may be registered in association with the model number. For example, as shown in FIG. 11, it is preferable that the model number and the stretchability are associated with each other and stored in an internal or external memory. In this way, for example, when the user inputs the model number from the input unit 330 including a keyboard and an operation panel, the elasticity data is selected.

  Adhesive data of the endless belt 202 is input from the torque limiter information input unit 331 to the control unit 332 as an information signal.

  As a control method based on such input data, the position of the detection sensor 306 is determined, and when it is determined, the driving motor 334 is driven until the recording medium P passes through the position, and the separation point 335 (see FIG. 9) is determined. Can be adopted.

  FIG. 12 shows an example of the processing flow of the control method.

  First, information on the degree of adhesion is sent from the torque limiter 203 to the torque limiter information input unit 331 and is input to the control unit 332 (S1).

  Next, the model number is input by the input unit 330 (S2). When inputted, the control unit 332 calls the elasticity data of the recording medium P corresponding to the model number inputted from the stored memory from the data table shown in FIG. 11 (S3).

  Next, the control unit 332 calculates the position of the detection sensor 306 based on the input information from the torque limiter information input unit 331 and the input unit 330 (S4).

  Next, the detection sensor 306 is moved to the calculated position of the detection sensor 306 (S5).

  Next, the drive motor 334 is driven until it reaches a position where the recording medium P can be detected at the position of the moved detection sensor 306 (S6). The peeling point is determined by the driven drive motor 334.

  The above control method can also be applied to the conveyance control provided with the slack of the recording medium P as shown in FIG. 13 when the endless belt 202 does not have adhesiveness.

It is the side view which showed typically schematic structure of one Embodiment of the recording-medium winding apparatus which concerns on this invention. It is a principal block diagram showing an outline of a control configuration of an embodiment of a recording medium winding device according to the present invention. Top view of torque limiter Front view of torque limiter The figure which shows one Embodiment of the angle adjustment means of a detection sensor The figure which shows an example of how to attach a detection sensor The figure which shows an example of a reflecting plate (A) is a figure which shows the example which the recording medium has peeled from the adhesive belt in the vicinity which passed the circular arc part, (B) is peeled from the adhesive belt before the recording medium reaches the circular arc part. Figure showing an example (A) is an enlarged view of the peeling point of the recording medium shown in FIG. 8 (A), and (B) is an enlarged view of the peeling point of the recording medium shown in FIG. 8 (B). Figure Printer control block diagram The figure which shows an example of correlation of a model number and elasticity Process flow diagram showing an example of control The side view which showed typically schematic structure of one Embodiment of the recording-medium winding apparatus based on a prior application patent The state in which the recording medium after printing is not peeled off while being stuck to the adhesive belt of the recording apparatus (inkjet printer) and is bridged between the tension roller of the winding means The figure which shows the conventional slack detection sensor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Printer 2: Recording means 200: Recording part main body 201: Roller 202: Endless belt 203: Torque limiter 204: Caster 205: Stopper 206: Arc part 3: Winding means 300, 300A, 300B: First side plate 301: First Two-side plate 302: Stand 303: Caster 304: Stopper 305: Tension roller 306: Detection sensor 307: Supporting rod 308: Light emitting / receiving unit 309: Support shaft 310: Reflecting plate 310a: Supporting unit 311: First cutout unit 312: Auxiliary Material roller 313: Winding roller 314: 2nd notch part 330: Input part 331: Torque limiter information input part 332: Control part 333: Sensor position adjustment mechanism 334: Drive motor 335: Peeling point P: Recording medium H: Auxiliary material

Claims (5)

In a winding device having a winding means for detecting a printed recording medium by a detection sensor and performing a winding operation,
An apparatus for winding a recording medium, comprising angle changing means for changing an attachment angle of the detection sensor in accordance with a conveyance path of the recording medium. A conveying belt that sucks and conveys the recording medium; a recording unit that prints on the recording medium on a flat print surface of the conveying belt; and a winding that performs a winding operation by detecting the printed recording medium by a detection sensor And a printer comprising:
The printer according to claim 1, wherein the winding unit includes an angle changing unit that enables an attachment angle of the detection sensor to be changed according to a conveyance path of the recording medium. A conveying belt that sucks and conveys the recording medium; a recording unit that prints on the recording medium on a flat print surface of the conveying belt; and a winding that performs a winding operation by detecting the printed recording medium by a detection sensor And a printer comprising:
A printer characterized in that the mounting position of the detection sensor can be changed above the flat printing surface of the recording means. Sensor position adjustment that can adjust the position of the input unit that inputs the specifications of the recording medium, the torque limiter information input unit that inputs the data signal from the torque limiter that measures the adhesiveness of the endless belt, the control unit, and the detection sensor A mechanism and a drive motor for driving the take-up roller;
The recording medium information from the input unit and the adhesive data signal from the torque limiter information input unit are input, and the control unit calculates the position of the detection sensor based on the input information and signal, and calculates Based on the result, a signal is input to the sensor position adjusting mechanism to adjust the position of the detection sensor, and the drive motor is driven to wind the recording medium until the detection sensor can detect the recording medium conveyed. A printer characterized in that it takes up control with a take-up roller and determines a peeling point between the conveying belt and the recording medium.   5. The printer according to claim 4, wherein the printer stores and stores the model number and elasticity of the recording medium in association with each other.

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