JP2019130852A - Ink jet recording device and ink jet recording method - Google Patents

Abstract

To provide an ink jet recording device capable of conveying a recording medium in a suitable state and recording a pattern of suitable quality.SOLUTION: An ink jet recording device conveys a recording medium and records a prescribed pattern. The ink jet recording device includes: a conveyance mechanism which includes an adhesive section which is formed on a conveyance surface on which the recording medium is mounted and fixes the recording medium and conveys the recording medium fixed to the adhesive section; a pressing mechanism which presses the recording medium conveyed by the conveyance mechanism to the adhesive section; and a recording section which records the prescribed pattern on the recording medium which is pressed by the pressing mechanism, is fixed to the adhesive section and is conveyed. The adhesive section has an adhesive tape which can be re-stuck. The pressing mechanism has a first pressing roller which is in contact with the recording medium and presses the recording medium to the adhesive tape, and a second pressing roller which has a roller surface composed of a material of higher hardness than that of the first pressing roller, is in contact with the adhesive tape, and presses the adhesive tape to the conveyance surface.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an ink jet recording apparatus and an ink jet recording method.

  Conventionally, techniques related to ink jet recording have been proposed. Patent Document 1 discloses an ink jet printing apparatus having an introduction unit for introducing a print medium, a conveyance unit for conveying the print medium, a print unit having a plurality of ink jet heads for the number of colors, and the like. In an inkjet printing apparatus, a continuous sheet-like fabric is used as a print medium. When the print medium is a continuous sheet-like fabric, in an inkjet printing apparatus, a tension control device that imparts an appropriate tension to the fabric, a wrinkle stretching device that stretches wrinkles, a texture straightening device that corrects the texture, and the direction in which the fabric travels The print medium is maintained in a desired state using a cloth position sensor in the left and right direction with respect to the cloth traveling direction so as not to meander from side to side, and the print medium is attached to a belt constituting the transport section and sent to the print section. Application of the print medium to the belt is performed by applying an adhesive (adhesive) to the belt and attaching the adhesive to the print medium using a nip roll.

  The applicant has also proposed an apparatus and a method related to performing inkjet recording by attaching a recording medium to a conveyance belt with an adhesive tape (see, for example, Patent Document 2 and Patent Document 3).

JP 2001-063161 A JP 2014-133309 A International Publication No. 2016/052363

  In an ink jet recording apparatus in which an adhesive portion is formed on such a transport belt, a pressure roller may be provided on the upstream side of the transport belt. The pressing roller presses and fixes the recording medium conveyed by the conveying belt against the adhesive portion on the conveying surface of the belt.

  For example, when the adhesive tape is attached to the transport belt to form the adhesive portion and when the recording medium is attached to the adhesive portion to perform ink jet recording, the surface hardness of the pressure roller, the pressing force, etc. are suitably adjusted. There is a need. Further, the pressure roller may need to be adjusted depending on the type of recording medium on which ink jet recording is performed. Conventional pressing mechanisms have been difficult to adjust in various cases.

  The present invention provides an ink jet recording apparatus and an ink jet recording method capable of transporting a recording medium in a suitable state and recording a pattern with a suitable quality by providing a pressing mechanism that can cope with various cases. The purpose is to provide.

  One aspect of the present invention made in view of the above-described conventional problems is an inkjet recording apparatus that conveys a recording medium and records a predetermined pattern, and is formed on a conveyance surface on which the recording medium is placed. A transport mechanism that transports a recording medium fixed to the adhesive section, a pressing mechanism that presses the recording medium transported by the transport mechanism against the adhesive section, and the pressing mechanism. A recording medium that records a predetermined pattern on a recording medium that is pressed and fixed to the adhesive part, and the adhesive part includes a replaceable adhesive tape, and the pressing mechanism includes: A first pressing roller that is in contact with the recording medium and presses the recording medium against the adhesive tape, and is composed of a material having a harder roller surface than the first pressing roller, and is in contact with the adhesive tape, Carrying Comprising a second pressing roller for pressing the adhesive tape against the surface, an ink jet recording apparatus.

  According to this, since the recording medium is pressed by the first pressing roller having a soft roller surface, the recording medium can be conveyed in a suitable state without making a mark on the surface. Since the surface is pressed by the second pressing roller having a hard surface, the adhesive tape can be attached to the transport surface of the transport belt without any wrinkles, and a pattern with a quality suitable for the recording medium can be recorded. it can.

  In addition, a conveyance mechanism that includes a pressure-sensitive adhesive portion that fixes a recording medium, which is formed on a conveyance surface on which a recording medium on which a predetermined pattern is recorded, is mounted, and a conveyance mechanism that conveys the recording medium fixed to the pressure-sensitive adhesive portion; A pressing mechanism that presses the recording medium conveyed by the conveying mechanism against the adhesive portion, and a predetermined pattern is recorded on the recording medium that is pressed by the pressing mechanism and is fixed to the adhesive portion and conveyed. An ink jet recording method executed by an ink jet recording apparatus having a recording unit, wherein the adhesive unit includes a replaceable adhesive tape, and the pressing mechanism includes a first pressing roller and the first pressing roller. A second pressing roller made of a material having a harder surface than the roller, and when recording a predetermined pattern on the recording medium, the recording medium is pressed by the first pressing roller. , In the case of the paste re of the adhesive tape which is adhered to the conveying surface presses the adhesive tape by the second pressing roller, an ink jet recording method.

  According to this, the same function as the ink jet recording apparatus described above can be achieved.

  According to the present invention, an ink jet recording apparatus and an ink jet recording which are provided with a pressing mechanism capable of dealing with various cases and can convey a recording medium in a suitable state and record a pattern with a suitable quality. You can get the method.

1 is a side view illustrating a schematic configuration of an ink jet recording apparatus. It is a figure explaining an example of schematic structure of a press mechanism.

  Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Moreover, you may make it include another structure.

<Inkjet recording apparatus>
As shown in FIG. 1, the ink jet recording apparatus 1 includes a delivery mechanism 20, a transport mechanism 30, a pressing mechanism 50, a recording unit 60, a peeling roller 70, and a winding mechanism 80. In the ink jet recording apparatus 1, each of these components and the like operate, and a predetermined pattern (image) is recorded on the fabric 3 as a recording medium. The fabric 3 has a long shape having a predetermined width.

  The delivery mechanism 20 includes a paper feed roller 22, a plurality of introduction rollers 24, a centering roller 26, and a position detection sensor 28. A long fabric 3 wound in a coil shape is set on the paper feed roller 22. The paper feed roller 22 continuously feeds the set fabric 3. The fabric 3 fed out from the paper supply roller 22 is conveyed to the centering roller 26 side via the introduction roller 24. In FIG. 1, three introduction rollers 24 are shown. The number of introduction rollers 24 in FIG. 1 is an example, and the number is set as appropriate.

  The centering roller 26 adjusts the position in the width direction of the fabric 3 fed from the paper feed roller 22. The position detection sensor 28 is provided in the vicinity of the centering roller 26. The position detection sensor 28 detects at least one side portion of the fabric 3 passing through the centering roller 26. According to the detection signal from the position detection sensor 28, the inkjet recording apparatus 1 monitors whether the side portion of the fabric 3 that has passed through the centering roller 26 and whose position in the width direction has been adjusted is at a predetermined position. The fabric 3 that has passed through the centering roller 26 is further conveyed to the conveyance mechanism 30 side via a predetermined roller having the same configuration as the introduction roller 24.

  The transport mechanism 30 is a so-called belt conveyor. The transport mechanism 30 transports the fabric 3 transported as described above in the transport direction from the delivery mechanism 20 toward the winding mechanism 80. The fabric 3 conveyed by the conveyance mechanism 30 passes through the recording unit 60. The transport mechanism 30 includes a pair of first belt roller 32 and second belt roller 34, and a transport belt 36. The first belt roller 32 is provided upstream of the recording unit 60 in the transport direction. The second belt roller 34 is provided downstream of the recording unit 60 in the transport direction. The conveyor belt 36 is an endless belt having an annular shape, and is stretched around the first belt roller 32 and the second belt roller 34. For example, the second belt roller 34 on the downstream side in the transport direction is rotated in a direction corresponding to the transport direction by the driving force of a driving unit (not shown), so that the transport belt 36 is rotated in the same direction. Referring to FIG. 1, the second belt roller 34 rotates counterclockwise (see the arrow in the second belt roller 34). At this time, the first belt roller 32 on the upstream side in the transport direction is driven to rotate. In the transport mechanism 30, the transport of the fabric 3 in the transport direction is realized in this way.

  As shown in FIG. 2, an adhesive portion 40 is formed on the conveyance surface 38 that is the surface of the conveyance belt 36. Accordingly, the fabric 3 is fixed to the adhesive portion 40 formed on the conveyance surface 38 in a state where the fabric 3 is conveyed by the conveyance mechanism 30. The adhesive portion 40 is a belt-like adhesive tape, and is fixed (adhered) to the transport surface 38 in a state that covers the outer periphery of the transport surface 38 over the entire circumference.

  The pressing mechanism 50 is transported to the transport mechanism 30 side as described above, and fixes the fabric 3 to be transported by the transport mechanism 30 to the adhesive portion 40 formed on the transport surface 38. The pressing mechanism 50 includes a first pressing roller 52, a second pressing roller 54, a pressing adjustment unit 56, and a counter roller 58. The pressing mechanism 50 is provided above the transport mechanism 30. The outer peripheral surface of the first pressing roller 52 faces the transport surface 38, specifically, the adhesive surface of the adhesive portion 40, at a position downstream of the point M shown in FIG. Point M is a position upstream of the recording unit 60 in the transport direction, and after the transfer direction of the transport belt 36 is changed to coincide with the transport direction on the upstream side of the transport direction, This is a position where the outer peripheral surface and the back surface of the transport belt 36, which is the surface opposite to the transport surface 38, are in non-contact state.

  The recording unit 60 records a predetermined pattern on the fabric 3 conveyed by the conveyance mechanism 30 while being fixed to the adhesive unit 40 by the pressing mechanism 50 above the conveyance mechanism 30. The recording unit 60 includes a plurality of recording heads. For example, it is assumed that black, cyan, magenta, and yellow inks are used for recording a predetermined pattern. In this case, the recording unit 60 includes a black recording head, a cyan recording head, a magenta recording head, and a yellow recording head. In the recording head for each color, a nozzle for ejecting the corresponding ink is formed so as to face the transport surface 38. Various inks are used for recording a predetermined pattern. For example, a water-based ink containing a colorant and an additive and using water as a medium is used. Examples of the colorant used in the ink include dyes such as reactive dyes, acid dyes, direct dyes, and disperse dyes. A pigment can also be used as a colorant. If necessary, a dispersant, an antifoaming agent, a penetrating agent, a deep dyeing agent, a pH adjusting agent, and the like may be added to the ink.

  FIG. 2 illustrates the case where the ink jet recording apparatus 1 is a serial type ink jet recording apparatus, and the ink jet recording apparatus 1 has a drive mechanism for reciprocating the recording unit 60 in the orthogonal direction. Recording of a predetermined pattern (recording process) is performed by reciprocating the recording unit 60 by a driving mechanism and intermittently conveying the fabric 3 in the conveying direction from each nozzle of the recording head for each color. This is done by ejecting ink.

  As shown in FIG. 1, the peeling roller 70 is provided at a position downstream of the transport mechanism 30 in the transport direction and higher than the transport mechanism 30 in the vertical direction. The peeling roller 70 rotates in a direction corresponding to the transport direction by a driving force of a driving unit (not shown). Referring to FIG. 1, the peeling roller 70 rotates counterclockwise (see the arrow in the peeling roller 70). The peeling roller 70 rotates in response to the rotation of the conveyance belt 36. The outer peripheral surface of the peeling roller 70 in contact with the fabric 3 is in a state in which a predetermined frictional force is generated with the fabric 3. When the peeling roller 70 rotates, the fabric 3 conveyed by the conveying mechanism 30 is pulled toward the peeling roller 70 side. As a result, the fabric 3 being conveyed in a state where the predetermined pattern is recorded is peeled off from the adhesive portion 40 at a predetermined position after passing through the recording portion 60.

  The fabric 3 that has been peeled off from the adhesive portion 40 and passed through the peeling roller 70 is further conveyed to the winding mechanism 80 via a predetermined roller having the same configuration as the introduction roller 24. The number of the predetermined rollers provided between the peeling roller 70 and the winding mechanism 80 is appropriately set. The winding mechanism 80 records a predetermined pattern and sequentially winds the fabric 3 conveyed via a predetermined roller. The wound fabric 3 is then supplied to, for example, a coloring process, which is the next process after the process performed by the inkjet recording apparatus 1. In the coloring process, a known coloring process is performed, and the recorded predetermined pattern is fixed to the fabric 3.

  The ink jet recording apparatus 1 has a connection interface (not shown). The connection interface includes a connection port for connecting a communication cable, and performs data communication with an external device (not shown) to which the communication cable is also connected. Examples of the external device include a personal computer. Pattern data representing a predetermined pattern recorded by the inkjet recording apparatus 1 is input to the inkjet recording apparatus 1 from an external device via a connection interface.

  In addition, the ink jet recording apparatus 1 includes a control unit 90. The control unit 90 controls various operations and processes executed in the inkjet recording apparatus 1. The control unit 90 processes the pattern data input from the external device to the inkjet recording apparatus 1 via the connection interface. Subsequently, the control unit 90 controls each color ink to be ejected from each nozzle of the recording head for each color according to the processed pattern data. As a result, a predetermined pattern is recorded on the fabric 3 fixed to the adhesive portion 40. The control unit 90 controls the delivery mechanism 20, the transport mechanism 30, the peeling roller 70, and the winding mechanism 80, respectively. Thereby, in each of these configurations, the operations of supplying, transporting, peeling, and winding the fabric 3 as described above are performed. The control unit 90 also controls the operation of the pressing mechanism 50 described later.

<Pressing mechanism>
The pressing mechanism 50 includes a first pressing roller 52, a second pressing roller 54, a pressing adjustment unit 56, and a counter roller 58.

  The first pressing roller 52 is a roller for pressing the fabric 3 to be transported by the transport mechanism 30 against the adhesive portion 40 of the transport surface 38. The first pressing roller 52 rotates following the conveyance of the fabric 3 in the conveyance direction. Based on FIG. 1, the first pressing roller 52 rotates clockwise.

  The second pressing roller 54 is configured so that the belt-like adhesive tape of the adhesive portion 40 formed on the conveying surface 38 that is the surface of the conveying belt 36 covers the outer periphery of the conveying surface 38 over the entire circumference. It is a roller for pressing on. The second pressing roller 54 rotates following the conveyance of the adhesive tape in the conveyance direction. Based on FIG. 1, the second pressing roller 54 rotates clockwise.

  If the ink jet recording apparatus 1 repeatedly performs ink jet recording many times, the adhesive strength of the adhesive portion 40 is reduced, and the fabric 3 cannot be adhered to the transport surface 38 cleanly. In that case, the old adhesive tape is peeled off from the surface of the conveyor belt 36 and is replaced with a new adhesive tape to recover the adhesive force of the adhesive portion 40. The second pressing roller 54 is a roller used when the adhesive tape is replaced.

  The second pressing roller 54 is made of a material having a harder roller surface than the first pressing roller 52. By selecting a material with high hardness, the roller surface is not easily deformed, the contact area between the adhesive tape and the second pressing roller 54 is reduced, and wrinkles are less likely to enter the adhesive tape to be attached to the belt. Examples of a roller made of a material preferable for the second pressing roller 54 include a rubber roller.

  In other words, the first pressing roller 52 is made of a material whose surface hardness is softer than that of the second pressing roller 54. By selecting a soft material, the roller surface is easily deformed, the contact area between the fabric 3 and the first pressing roller 52 is increased, and the fabric 3 can be transported without leaving a mark on the surface of the fabric 3. I can do it. As a roller made of a material preferable for the first pressing roller 52, for example, a sponge roller can be cited.

  As an indication of the hardness of the first pressing roller 52 and the second pressing roller 54, the Shore hardness (HS) of the first pressing roller 52 is less than 25, and the Shore hardness ( HS) is preferably 25 or more.

  The pressing adjustment unit 56 is configured to switch between the first pressing roller 52 and the second pressing roller 54. For example, each roller can be switched by rotating a support plate that supports the first pressing roller 52 and the second pressing roller 54 from both ends with an air cylinder or the like.

  The counter roller 58 is provided on the back side of the transport belt 36 so as to face the pressing roller 52 with the transport belt 36 interposed therebetween. The counter roller 58 rotates following the rotation of the conveyance belt 36. Based on FIG. 1, the counter roller 58 rotates counterclockwise. The counter roller 58 receives a pressing force applied by the first pressing roller 52 or the second pressing roller 54. That is, the counter roller 58 has a function as a receiving portion.

<Effects of this embodiment>
According to this embodiment, the following effects can be obtained.

  (1) Since the cloth 3 is pressed by the first pressing roller 52 having a soft roller surface, the cloth 3 can be transported in a suitable state without making a mark on the surface, and a pattern with a suitable quality is recorded. can do.

  (2) Further, since the adhesive tape is pressed by the second pressing roller 54 having a hard roller surface, the adhesive tape can be attached to the conveying surface 38 of the conveying belt 36 without wrinkles, and the fabric 3 can be recorded.

<Modification>
This embodiment can also be performed as follows. Even with such a configuration, the above-described effects can be obtained.

  (1) In the above description, the case where the recording medium on which the predetermined pattern is recorded is the long fabric 3 has been described as an example. In addition, the recording medium may be a strip-shaped fabric. In this case, in the inkjet recording apparatus 1, the delivery mechanism 20, the peeling roller 70, and the winding mechanism 80 are omitted. In the transport mechanism 30, the strip-shaped fabric is placed on the transport surface 38 at the end on the upstream side in the transport direction, and is pressed by the pressing mechanism 50 and fixed to the adhesive section 40 as described above. Thereafter, the adhesive part 40 is peeled off at a predetermined position that has passed through the recording part 60. Further, the recording medium may be a medium other than the fabric.

  (2) Although the case where the inkjet recording apparatus 1 is a serial type inkjet recording apparatus has been described above as an example, the inkjet recording apparatus 1 may be a line type inkjet recording apparatus. In the case of a line type ink jet recording apparatus, in the recording unit 60, the recording heads for each color are arranged adjacent to each other in the transport direction. The arrangement order is set as appropriate.

DESCRIPTION OF SYMBOLS 1 Inkjet recording device 3 Fabric 20 Delivery mechanism 22 Paper feed roller 24 Introduction roller 26 Centering roller 28 Position detection sensor 30 Conveying mechanism 32 First belt roller 34 Second belt roller 36 Conveying belt 38 Conveying surface 40 Adhesive part 50 Pressing mechanism 52 First One pressing roller 54 Second pressing roller 56 Press adjusting unit 58 Counter roller 60 Recording unit 70 Peeling roller 80 Winding mechanism 90 Control unit

Claims (2)

An inkjet recording apparatus that conveys a recording medium and records a predetermined pattern,
A transport mechanism for transporting the recording medium fixed to the adhesive part, including an adhesive part for fixing the recording medium, formed on a transport surface on which the recording medium is placed;
A pressing mechanism for pressing the recording medium conveyed by the conveying mechanism against the adhesive portion;
A recording unit that records a predetermined pattern on a recording medium that is pressed by the pressing mechanism and is transported by being fixed to the adhesive unit,
The adhesive portion includes a replaceable adhesive tape,
The pressing mechanism is
A first pressing roller that contacts the recording medium and presses the recording medium against the adhesive tape;
An ink jet recording apparatus comprising: a second pressing roller that is made of a material having a harder roller surface than the first pressing roller, is in contact with the adhesive tape, and presses the adhesive tape against the transport surface. A conveyance mechanism formed on a conveyance surface on which a recording medium on which a predetermined pattern is recorded is placed, including an adhesive portion for fixing the recording medium, and a conveyance mechanism for conveying the recording medium fixed to the adhesion portion;
A pressing mechanism for pressing the recording medium conveyed by the conveying mechanism against the adhesive portion;
An ink jet recording method that is executed by an ink jet recording apparatus having a recording unit that records a predetermined pattern on a recording medium that is pressed by the pressing mechanism and fixed to the adhesive unit and conveyed.
The adhesive portion includes a replaceable adhesive tape,
The pressing mechanism includes a first pressing roller and a second pressing roller made of a material whose hardness on the roller surface is harder than that of the first pressing roller,
When recording a predetermined pattern on the recording medium, the recording medium is pressed by the first pressing roller,
An inkjet recording method in which, when the adhesive tape adhered to the transport surface is replaced, the adhesive tape is pressed by the second pressing roller.