JP2014040009A - Liquid jet apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid jet apparatus in which deterioration in image quality on a recording medium is suppressed in reduced power consumption without complicating a conveyance structure and a driving structure.SOLUTION: A liquid jet apparatus includes; a recording medium supply unit 10 for supplying a recording medium M; a recording medium conveyance unit 20, having a supporting surface 23a for supporting the recording medium M, for conveying the recording medium M; a jet head H for jetting liquid toward the recording medium M supported by the recording medium conveyance unit 20; a recording medium recovery unit 30 for recovering the recording medium M; a heater block 27, arranged between the recording medium conveyance unit 20 and the recording medium recovery unit 30, for drying ink, which has impacted on the recording medium M, by directly heating the recording medium M on an abutment surface 27a; and an interleaf supply unit 80 for supplying a sheet-shaped interleaf S between the abutment surface 27a and the recording medium M on the side of the recording medium conveyance unit 20, in which the interleaf S sandwiched between the abutment surface 27a and the recording medium M, together with the recording medium M, is conveyed.

Description

  The present invention relates to a liquid ejecting apparatus.

  Conventionally, screen printing equipment using a dyeing die has been used for printing on cotton, silk, wool, chemical fiber, blended fabric, etc. In recent years, due to improvements in the technology of inkjet printers, printing by the inkjet method has been used. Inkjet textile printing apparatuses that perform printing have attracted attention.

  Ink-jet printing does not require the dye used in screen printing, and a digitized design can be used. Therefore, it is possible to quickly respond to a fine design change according to the customer's request, and to greatly reduce the production time. In addition, there is an advantage that the degree of freedom in design is large, such as being able to express color gradation.

In an ink jet textile printing apparatus, when a cloth, which is a recording medium, is transported to an ejection head that performs textile printing by ink jet, the cloth is placed on a transport belt that has adhesiveness on a support surface that supports the cloth in order to increase the transport accuracy. For example, Patent Document 1 introduces a configuration provided with a recording medium conveyance unit that affixes the belt and drives the conveyance belt with a conveyance roller or the like to convey the cloth.
In addition, in the ink jet textile printing apparatus described in Patent Document 1, a recording medium supply unit that feeds a cloth to the recording medium conveyance unit and supplies the cloth to the recording medium conveyance unit, and a liquid toward the cloth supported by the recording medium conveyance unit. An ejection head for ejecting, a recording medium recovery unit for recovering the cloth transported from the recording medium transport unit, and a drying unit disposed between the recording medium transport unit and the recording medium recovery unit for drying the liquid that has landed on the recording medium Part.

In the inkjet printing apparatus described in Patent Document 1, examples of the drying unit (drying heater) include those that blow warm air on the cloth and those that irradiate the cloth with infrared rays.
In addition to such a drying unit that performs drying in a non-contact manner on the cloth, a drying unit of a type in which the cloth is brought into contact with the heater block and heated to dry can be considered.

JP-A-8-108588

However, in the configuration of the ink jet printing apparatus described in Patent Document 1, since the drying unit is a non-contact type drying heater, in order to dry the liquid landed on the printed fabric, for example, 10 kilowatts, or There is a possibility that the apparatus cost and the manufacturing cost may increase, for example, it is necessary to install a high-spec heater unit of several tens of kilowatts level and the power consumption in the drying process increases.
In addition, in order to stabilize the position of the cloth with respect to the non-contact type drying unit, guide rollers are disposed in the vicinity of the entrance and the exit of the drying unit. Particularly, the guide roller disposed in the vicinity of the entrance is not dried. Since the cloth comes into contact, the liquid printed on the cloth soaks up to the contact surface of the guide roller and adheres to the contact surface of the guide roller. There was a risk of causing.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A liquid ejecting apparatus according to this application example includes a recording medium supply unit that supplies a recording medium, a support surface that supports the recording medium, and a recording medium conveyance unit that conveys the recording medium. An ejection head that ejects liquid toward the recording medium, a recording medium recovery unit that recovers the recording medium, and a vertical direction of the recording medium recovery unit between the recording medium transport unit and the recording medium recovery unit A liquid jet comprising: a heater block disposed above and having a contact surface with which the recording medium contacts; and a heater block that dries the liquid landed on the recording medium by contacting the recording medium with the contact surface An apparatus comprising: a slip sheet supply unit that supplies a sheet of slip sheet between the contact surface and the recording medium on the recording medium transport unit side of the heater block, and the contact surface and the recording Said sandwiched between media Paper characterized in that it is conveyed with the recording medium.

According to the configuration of this application example, the recording medium is held at a position closest to the recording medium conveyance unit on the contact surface of the heater block, and the recording medium between the recording medium conveyance unit and the heater block has a certain tension. Therefore, the conveyance of the recording medium can be stabilized without using another conveyance member such as a guide roller. Moreover, since the recording medium is brought into contact with the contact surface of the heater block for drying, the liquid landed on the recording medium can be efficiently dried with a small amount of energy. In addition, even when the liquid jetted onto the recording medium in the recording medium transport unit penetrates the recording medium and reaches the contact surface on the heater block, there is a slip sheet between the recording medium and the contact surface. Therefore, the contact surface is not soiled. Thereby, it is possible to prevent drawing defects such as the liquid adhering to the contact surface of the heater block contaminating the recording medium conveyed later.
Therefore, without complicating the structure of the drying unit (heater block) and the transport system, the recording medium is transported with excellent stability, the liquid landed on the recording medium is efficiently dried, or the guide roller is contaminated. It is possible to suppress drawing defects, and it is possible to provide a liquid ejecting apparatus that can stably convey a recording medium and perform high-quality drawing while suppressing an increase in apparatus cost and manufacturing cost.

  Application Example 2 In the liquid ejecting apparatus according to the application example described above, the shaft portion of the recording medium recovery unit is more than the recording medium recovery unit side portion of the contact surface of the heater block in plan view. It is preferable to be arranged on the medium transport unit side.

  According to this application example, a large contact area between the contact surface and the recording medium is ensured at a portion of the contact surface of the heater block on the recording medium recovery unit side, so that conveyance of the recording medium is stabilized and drying is performed. Efficiency can be improved.

  Application Example 3 In the liquid ejecting apparatus according to the application example described above, it is preferable that the slip sheet supply unit is disposed outside the recording medium recovery unit with respect to the conveyance direction of the recording medium.

  According to this application example, the slip sheet supply unit is positioned in front of the recording medium recovery unit with respect to the operator facing the recording medium recovery unit side of the liquid ejecting apparatus. It is possible to improve the workability of the interleaf paper replacement work when the interleaf paper is about to be cut during the liquid ejecting work (manufacturing).

  Application Example 4 In the liquid ejecting apparatus according to the application example described above, an angle formed by the slip sheet and the recording medium at a position where the slip sheet supplied from the slip sheet supply unit and the recording medium overlap each other. Is preferably an acute angle rather than a right angle.

  According to this application example, the damage applied to the slip sheet is reduced in the portion where the slip sheet is superimposed on the recording medium, and for example, problems such as tearing of the slip sheet can be suppressed.

  Application Example 5 In the liquid ejecting apparatus according to the application example described above, it is characterized in that a slip sheet collecting unit that collects the slip sheet is provided on the recording medium collecting unit side of the heater block.

  According to this application example, it is possible to provide a liquid ejecting apparatus capable of taking a manufacturing measure of collecting only a recording medium without collecting the dried recording medium together with the slip sheet in the recording medium collecting unit.

  Application Example 6 In the liquid ejecting apparatus according to the application example described above, it is preferable that the contact surface of the heater block has a slope that goes down toward the recording medium recovery unit.

  According to this application example, the bending of the recording medium sent from the heater block to the recording medium recovery unit is reduced, the stress applied to the recording medium is reduced, the conveyance is stabilized, and the contact area of the recording medium with respect to the contact surface is increased. Largely secured and drying efficiency can be improved.

  Application Example 7 In the liquid ejecting apparatus according to the application example described above, the part of the contact surface that is closest to the recording medium conveyance unit is the same as the part of the support surface that is closest to the heater block in the horizontal direction. Or positioned above the vertical direction and disposed below the portion of the support surface closest to the heater block between the recording medium transport unit and the heater block in the vertical direction, and the recording medium transport unit A position detection unit that detects the recording medium that is drawn out from and hangs between the recording medium transport unit and the heater block, and drives the recording medium recovery unit when the position detection unit detects the recording medium And a control unit that performs control to collect a predetermined amount of the recording medium.

According to this application example, the recording medium can be transported and drawn with a simple apparatus configuration without applying unnecessary tension to the recording medium and holding an appropriate tension.
In addition, the recording medium is held at the portion of the contact surface of the heater block that is closest to the recording medium conveyance unit, and the recording medium between the recording medium conveyance unit and the heater block is held with a certain tension. Further, the conveyance of the recording medium can be stabilized without using a guide roller.

1 is a schematic diagram showing a schematic configuration of a textile printing apparatus according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing a configuration of a part of the textile printing apparatus according to the first embodiment. The schematic diagram which shows schematic structure of the textile printing apparatus which concerns on Embodiment 2 of this invention. The schematic diagram which shows the structure of a part of modification of the textile printing apparatus of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
First, Embodiment 1 of the liquid ejecting apparatus of the invention will be described.
FIG. 1 is a schematic diagram illustrating a schematic configuration of a textile printing apparatus according to the first embodiment. FIG. 2 is a perspective view showing a partial configuration of the textile printing apparatus according to the first embodiment.
As shown in FIGS. 1 and 2, the textile printing apparatus (liquid ejecting apparatus) 100 includes a recording medium supply unit 10, a recording medium transport unit 20, a recording medium collection unit 30, an inkjet unit 40, a heater block 27, a maintenance unit 50, A position detection unit 70, a slip sheet supply unit 80, and a control unit CONT are included. Each part of the textile printing apparatus 100 is attached to the frame part FR.

  The textile printing apparatus 100 prints the recording medium M by forming an image on the recording medium M. As the recording medium M, for example, a cloth such as cotton, silk, wool, chemical fiber, and mixed spinning is used. In the present embodiment, a configuration in which an image is formed on a belt-like (sheet-like) recording medium M by a roll method will be described.

  The recording medium supply unit 10 supplies the recording medium M on which no image is formed. The recording medium supply unit 10 includes a shaft portion 11 and a bearing portion (not shown).

  The shaft portion 11 is formed in a cylindrical shape or a columnar shape, and is provided to be rotatable in the circumferential direction. A belt-like recording medium M is wound around the shaft portion 11 in a roll shape. The shaft portion 11 is detachably attached to the bearing portion. For this reason, for example, the shaft portion 11 around which the recording medium M is wound can be attached to the bearing portion.

  The bearing portion rotatably supports both ends in the axial direction of the shaft portion 11. The bearing part has a rotation drive part (not shown) that drives the shaft part 11 to rotate. The rotation drive unit rotates the shaft unit 11 in the direction in which the recording medium M is sent out. The operation of the rotation drive unit is controlled by, for example, the control unit CONT.

The recording medium transport unit 20 transports the recording medium M from the recording medium supply unit 10 to the recording medium collection unit 30. The recording medium conveyance unit 20 includes a conveyance belt 23, a belt rotation roller 24, and a belt rotation roller 25.
Although not shown, a guide roller (conveyance roller) may be disposed at an appropriate position on the conveyance path of the recording medium M in order to stabilize the conveyance of the recording medium M.

  The conveyor belt 23 is formed in an endless shape, and is hung on the belt rotation roller 24 and the belt rotation roller 25. The conveyance belt 23 is held in a state where a predetermined tension is applied so that a portion between the belt rotation roller 24 and the belt rotation roller 25 is parallel to the floor surface. An adhesive layer (not shown) that adheres the recording medium M is provided on the surface (support surface 23 a) of the transport belt 23. The conveyance belt 23 supports the recording medium M on the support surface 23a on which the adhesive layer is provided. The support surface 23a is defined by a first direction (conveying direction) and a second direction (width direction) that intersect each other.

  The belt rotation roller 24 and the belt rotation roller 25 support the inner peripheral surface 23 b of the conveyance belt 23. A configuration in which a support portion that supports the conveyance belt 23 is provided between the belt rotation roller 24 and the belt rotation roller 25 may be employed. The belt rotation roller 24 rotates as the conveyance belt 23 rotates. The belt rotation roller 25 is rotated by a rotation driving unit (such as a motor) (not shown). The rotation driving unit is controlled by the control unit CONT.

  The conveyance belt 23 is rotated by the rotation of the belt rotation roller 25, and the belt rotation roller 24 is rotated by the rotation of the conveyance belt 23. The recording medium M supported by the conveyance belt 23 is conveyed in a predetermined conveyance direction by the rotation of the conveyance belt 23. In the present embodiment, the direction from the belt rotation roller 24 toward the belt rotation roller 25 is the conveyance direction. Therefore, for example, when the belt rotation roller 24 and the belt rotation roller 25 are compared, the belt rotation roller 24 is disposed on the upstream side in the transport direction, and the belt rotation roller 25 is disposed on the downstream side in the transport direction.

  The heater block 27 is heated to a predetermined temperature by a heater chip (not shown) embedded in a part of the heater block 27, and the recording medium M conveyed from the recording medium conveying unit 20 is brought into contact with the abutting surface 27 a to thereby record the recording medium M. The ink ejected as a liquid is dried. According to this configuration, since the recording medium M is brought into contact with the contact surface 27a of the heater block 27 and dried, the ink landed on the recording medium M can be efficiently dried with less energy.

The heater block 27 is formed by processing a metal such as aluminum.
The heater block 27 is disposed above the recording medium collection unit 30 in the vertical direction (direction intersecting the first direction and the second direction), and the contact surface 27a has a slope that goes down to the recording medium collection unit 30 side. doing. As a result, a large contact area of the recording medium M with the contact surface 27a of the heater block 27 is ensured, and the drying efficiency can be improved. For example, the contact surface is horizontal with the support surface 23a of the recording medium transport unit 20. Since the recording medium M is not greatly bent from the horizontal contact surface to the recording medium recovery unit 30 vertically below the horizontal contact surface, the recording medium M can be smoothly transported and stabilized. Can do. In the present embodiment, in the front cross-sectional shape of the heater block 27, a slope is formed that has an arc in which the contact surface 27a swells toward the corresponding contact surface 27a.

  As shown in FIG. 1, the heater block 27 has a portion on the recording medium conveyance unit 20 side of the contact surface 27 a that is closer to the heater block 27 side of the support surface 23 a of the recording medium conveyance unit 20. It is preferable that they are arranged so as to be located above the vertical direction. According to this, the recording medium M between the recording medium transport unit 20 and the heater block 27 has an appropriate tension at a portion of the contact surface 27a of the heater block 27 closest to the recording medium transport unit 20 side. Since it is held, the conveyance of the recording medium M can be stabilized without using another conveyance member such as a guide roller.

  The slip sheet supply unit 80 supplies the sheet-shaped slip sheet S between the recording medium M and the contact surface 27 a of the heater block 27 on the recording medium transport unit 20 side (upstream side) of the heater block 27. In the present embodiment, the paper is supplied from the interleaf supply unit 80 to the upstream side of the heater block 27 via the transport roller 84 and the transport roller 85. Here, due to the arrangement of the transport roller 85 closer to the heater block 27, the angle formed between the slip sheet S and the recording medium M at the position where the slip sheet S and the recording medium M are overlapped on the upstream side of the heater block 27. It is adjusted so that it is sharper than a right angle. Thereby, the damage applied to the slip sheet S in the portion where the slip sheet S is superimposed on the recording medium M is reduced, and problems such as tearing of the slip sheet S are suppressed.

The recording medium recovery unit 30 includes a shaft portion 31 and a bearing portion (not shown).
The shaft portion 81 is formed in a cylindrical shape or a columnar shape, and is provided to be rotatable in the circumferential direction. A belt-like interleaf S is wound around the shaft 81 in a roll shape. The shaft portion 81 is detachably attached to the bearing portion. For this reason, for example, in a state where the slip sheet S is wound around the shaft portion 81, the slip sheet S can be removed together with the shaft portion 81 by removing the shaft portion 81 from the bearing portion.
The bearing portion rotatably supports both ends of the shaft portion 81 in the axial direction. The bearing portion has a rotation drive unit (not shown) that rotates the shaft unit 81. The rotation driving unit rotates the shaft portion 81 in a direction in which the slip sheet S is fed out to the heater block 27 side. The operation of the rotation drive unit is controlled by, for example, the control unit CONT.

  The slip sheet S, which is overlapped with the recording medium M on the upstream side of the heater block 27 and sandwiched between the surface opposite to the ink landing surface of the recording medium M and the contact surface 27a, together with the recording medium M, the heater block 27. Is conveyed on the contact surface 27a. As a result, even when the ink jetted onto the recording medium M by the recording medium transport unit 20 penetrates the recording medium M and reaches the contact surface 27a on the heater block 27, the recording medium M and the contact surface 27a The contact surface 27a is not soiled with ink due to the presence of the interleaving paper S, so that the ink adhering to the contact surface 27a of the heater block 27 stains the recording medium M conveyed later. Drawing defects can be prevented.

  In the textile printing apparatus 100 of the present embodiment, the slip sheet supply unit 80 is disposed outside the recording medium collection unit 30 with respect to the conveyance direction of the recording medium M. As a result, the slip sheet supply unit 80 is positioned in front of the recording medium recovery unit 30 with respect to the operator facing the recording medium recovery unit 30 side of the textile printing apparatus 100. When the slip sheet S is about to be cut during the drawing (ink ejection) operation (manufacture), the workability of the slip sheet S replacement work is good.

The recording medium recovery unit 30 recovers the recording medium M that has been transported by the recording medium transport unit 20 and dried by the heater block 27. In the present embodiment, the recording medium M is collected in the recording medium collection unit 30 together with the slip sheet S. The recording medium recovery unit 30 includes a shaft portion 31 and a bearing portion (not shown).
The shaft portion 31 is formed in a cylindrical shape or a columnar shape, and is provided to be rotatable in the circumferential direction. A belt-like recording medium M is wound around the shaft portion 31 in a roll shape. The shaft portion 31 is detachably attached to the bearing portion. For this reason, for example, in a state where the recording medium M is wound around the shaft portion 31, the recording medium M can be removed together with the shaft portion 31 by removing the shaft portion 31 from the bearing portion.

  The bearing portion rotatably supports both ends of the shaft portion 31 in the axial direction. The bearing portion has a rotation drive unit (not shown) that rotates the shaft portion 31. The rotation drive unit rotates the shaft unit 31 in the direction in which the recording medium M is wound up. The operation of the rotation drive unit is controlled by, for example, the control unit CONT.

  The recording medium recovery unit 30 is disposed such that the shaft portion of the recording medium recovery unit 30 is positioned closer to the recording medium transport unit 20 than the end of the heater block 27 on the recording medium recovery unit 30 side in plan view. ing. As a result, the recording medium M between the heater block 27 and the recording medium recovery unit 30 is held with a certain tension at the portion of the contact surface 27a of the heater block 27 closest to the recording medium recovery unit 30. Since the conveyance of the recording medium M is stabilized and the recording medium M is firmly in contact with the abutting surface 27a, the contact area between the recording medium M and the abutting surface 27a can be secured stably and large. The efficiency of drying the ink that has landed on the medium M can be improved.

  The ink jet unit 40 ejects ink onto the recording medium M. The inkjet unit 40 includes an ejection head H and a head moving unit 41. The ejection head H has an ejection surface Ha that ejects ink. A plurality of nozzles NZ that eject ink are formed on the ejection surface Ha. The ejection surface Ha is directed to the recording medium M that is transported by the transport belt 23. The head moving unit 41 moves the ejection head H in a direction that intersects the transport direction (for example, the width direction of the recording medium M).

  The maintenance unit 50 performs maintenance of the conveyor belt 23. The maintenance unit 50 includes a processing unit 51, a base 52, and a moving unit 53. The processing unit 51 includes, for example, a maintenance device that removes ink, dust, lint, and the like attached to the conveyor belt 23, an adhesive layer repair device that repairs the adhesive layer when the adhesive layer of the conveyor belt 23 deteriorates, and the like. An apparatus for performing various processes on the conveyor belt 23 is provided. The base 52 supports the processing unit 51. The base 52 may have an elevating unit that moves the processing unit 51 up and down. The moving unit 53 integrally moves the processing unit 51 and the base 52 along the floor surface.

  The position detection unit 70 is disposed at a height between the recording medium conveyance unit 20 and the heater block 27 that is lower than the portion of the support surface 23a of the conveyance belt 23 that is closest to the heater block 27 in the vertical direction. Yes. The position detection unit 70 detects a recording medium M (shown by a broken line in the drawing) that is drawn out from the recording medium conveyance unit 20 and hangs between the recording medium conveyance unit 20 and the heater block 27. As the position detection unit 70, for example, an optical sensor or a CCD camera can be used.

When the position detection unit 70 detects the recording medium M, the control unit CONT controls the drive of the recording medium collection unit 30 to collect a predetermined amount of the recording medium M. Here, the predetermined amount refers to the state of the recording medium M between the recording medium transport unit 20 and the heater block 27 until the recording medium M is held straight with a predetermined tension (the recording medium M indicated by a solid line in the figure). .
As described above, according to the conveyance control method of the recording medium M in which the recording medium recovery unit 30 is driven by the control unit CONT based on the position detection of the recording medium M by the position detection unit 70, the recording is performed with a simple apparatus configuration. It is possible to transport and draw the recording medium M without applying unnecessary tension to the medium M and holding an appropriate tension.

Next, the operation of the textile printing apparatus 100 configured as described above will be described.
When image data is input from the outside to the textile printing apparatus 100, the control unit CONT causes the recording medium M to form an image corresponding to the input image data. First, an operation flow for forming an image on the recording medium M will be described.

  The control part CONT rotates the shaft part 11 and sends out the recording medium M from the recording medium supply part 10. The recording medium M sent out from the recording medium supply unit 10 is supported by the conveyor belt 23. At this time, the recording medium M is supported using a pressing portion (not shown) that presses against the support surface 23a of the conveyor belt 23 in a state where the recording medium M is attached so as not to float between the support surface 23a.

  Since the transport belt 23 has adhesiveness on the support surface 23a, the recording medium M is transported in a state of being attached to the support surface 23a. The controller CONT rotates the belt rotation roller 25 to move the transport belt 23 in the transport direction. With this operation, the recording medium M is transported in the transport direction by the transport belt 23.

  After the recording medium M reaches a predetermined position on the transport belt 23, the control unit CONT ejects ink from the nozzles NZ while moving the ejection head H in the width direction of the recording medium M. The control unit CONT moves the recording medium M by a predetermined distance in the transport direction every time the ejection head H scans the recording medium M once in the width direction. The controller CONT rotates the belt rotation roller 25 by a predetermined angle in one movement. As described above, the control unit CONT intermittently moves the recording medium M in the transport direction, scans the ejection head H, and ejects ink from the nozzles NZ, thereby forming a predetermined image on the recording medium M. Is done.

The control unit CONT moves the recording medium M on which an image is formed to the downstream side of the transport belt 23. The recording medium M that has moved to the downstream side of the conveyor belt 23 reaches the recording medium recovery unit 30 via the heater block 27. Further, the control unit CONT feeds the slip sheet S from the slip sheet supply unit 80 to the upstream side of the heater block 27, where the slip sheet S superimposed on the recording medium M passes through the heater block 27 together with the recording medium M. The recording medium recovery unit 30 is reached.
When the control unit CONT moves the recording medium M to the downstream side of the transport belt 23, the recording medium M hangs down between the transport belt 23 and the heater block 27 in the vertical direction. When the sagging recording medium M is detected by the position detection unit 70, the control unit CONT drives the recording medium recovery unit 30 so that the recording medium M is located between the recording medium transport unit 20 and the heater block 27. The recording medium M is controlled to be collected together with the slip sheet S until the recording medium M is held straight at a predetermined tension (the recording medium M indicated by a solid line in the drawing).

As described above, according to the present embodiment, the heater block 27 functions as a conveyance guide that holds the recording medium M between the upstream recording medium conveyance unit 20 and the downstream recording medium recovery unit 30. However, it functions as a drying unit (heating unit) that directly contacts and heats the recording medium M on which the ink has been ejected. In addition, a slip sheet supply unit 80 that supplies the slip sheet S between the contact surface 27 a of the heater block 27 and the recording medium M is provided.
Thereby, while preventing drawing defects due to ink contamination on the contact surface 27a of the heater block 27, the conveyance of the recording medium M is stabilized and the efficiency of ink drying is improved without complicating the apparatus configuration. Can be provided.
In addition, the conveyance member such as the guide roller is reduced, the apparatus cost is reduced, and the drawing defect due to the ink contamination of the conveyance member that may occur when the conveyance member is arranged on the upstream side of the heater block 27 as the drying unit. Can be prevented.

(Embodiment 2)
Next, another embodiment of a textile printing apparatus as a liquid ejecting apparatus will be described.
FIG. 3 is a schematic diagram illustrating a schematic configuration of the textile printing apparatus according to the second embodiment of the present invention. In addition, in this embodiment, about the same structure as the said Embodiment 1, the same code | symbol is attached | subjected to drawing and description is abbreviate | omitted.

  In FIG. 3, the printing apparatus 200 according to the second embodiment is the same as the printing apparatus 100 according to the first embodiment (see FIGS. 1 and 2), the recording medium supply unit 10, the recording medium transport unit 20, and the recording medium collection unit 30. , An inkjet unit 40, a heater block 27, a maintenance unit 50, a position detection unit 70, a slip sheet supply unit 80, and a control unit CONT. Further, the textile printing apparatus 200 according to the second embodiment includes a slip sheet collecting unit 90 that collects the slip sheet S on the recording medium collecting unit 30 side of the heater block 27. Each part of the textile printing apparatus 200 is attached to the frame part FR.

  The slip sheet collecting unit 90 includes a shaft portion 91 and a bearing portion (not shown). The shaft portion 91 is formed in a cylindrical shape or a columnar shape, and is provided to be rotatable in the circumferential direction. A slip sheet S that has passed over the heater block 27 together with the recording medium M is wound around the shaft portion 91 in a roll shape. The shaft portion 91 is detachably attached to the bearing portion. For this reason, for example, in a state where the slip sheet S is wound around the shaft portion 91, the slip sheet S can be removed together with the shaft portion 91 by removing the shaft portion 91 from the bearing portion.

  The bearing portion rotatably supports both ends of the shaft portion 91 in the axial direction. The bearing portion has a rotation drive unit (not shown) that rotates the shaft portion 91. The rotation driving unit rotates the shaft portion 91 in the direction in which the slip sheet S is wound up. The operation of the rotation drive unit is controlled by, for example, the control unit CONT.

  According to the textile printing apparatus 200 of the second embodiment, it is possible to take a manufacturing measure in which only the recording medium M is collected without collecting the dried recording medium M together with the slip sheet S in the recording medium collecting unit 30.

  The technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, the slip sheet supply unit 80 is disposed outside the textile printing apparatuses 100 and 200 with respect to the recording medium M transport direction with respect to the recording medium collection unit 30.
However, the present invention is not limited to this, and the interleaf sheet S may be disposed at an appropriate place in the textile printing apparatuses 100 and 200 as long as it can be supplied upstream of the heater block 27.

In the embodiment described above, the configuration in which the shaft 81 of the slip sheet supply unit 80 is provided with the rotation drive unit to feed the slip sheet S is described.
Not limited to this, the shaft unit 81 of the slip sheet supply unit 80 is not provided with a rotation drive unit, but the shaft unit 81 can be rotated with a low load, and recording is performed by the driving force of the shaft unit 31 of the recording medium recovery unit 30. A configuration may be adopted in which the slip sheet S is fed from the slip sheet supply unit 80 by winding the slip sheet S together with the medium M.

In the above-described embodiment, the heater block 27 serving as the drying unit has an example in which the contact surface 27a has a shape including an arc that swells toward the corresponding contact surface 27a in the normal cross-sectional shape. The surface 27 a is not limited to this as long as it has a slope that goes down toward the recording medium recovery unit 30.
For example, like the heater block 127 shown in FIG. 4, in the front cross-sectional shape, a bent portion 127 c in which the contact surface 127 a protrudes toward the corresponding contact surface 127 a and a flat portion 127 f that forms slopes on both sides of the bent portion 127 c. A configuration including a shape including
4 illustrates the heater block 127 having a configuration in which a plurality of bent portions 127c are provided on the contact surface 127a in the regular cross-sectional shape, but there may be only one bent portion, and the heater shown in FIG. It is good also as a structure containing many bending parts rather than the bending part 127c of the block 127. FIG.

  In the above-described embodiment, the adhesive layer is provided on the support surface 23a of the transport belt 23 and the recording medium M is held by the adhesive force of the adhesive layer. However, the present invention is not limited to this. No. For example, the recording medium M may be held by electrostatic adsorption or vacuum adsorption.

  CONT ... control unit, M ... recording medium, H ... jet head, S ... interleaf, 10 ... recording medium supply unit, 23 ... conveying belt, 23a ... support surface, 23b ... inner peripheral surface, 27, 127 ... heater block, 27a, 127a ... contact surface, 30 ... recording medium recovery unit, 70 ... position detection unit, 80 ... slip-sheet supply unit, 90 ... slip-sheet recovery unit, 100, 200 ... textile printing device (liquid ejecting device).

Claims (7)

A recording medium supply unit for supplying the recording medium;
A recording medium transport unit having a support surface for supporting the recording medium and transporting the recording medium;
An ejection head that ejects liquid toward the recording medium;
A recording medium recovery unit for recovering the recording medium;
The recording medium recovery unit is disposed between the recording medium transport unit and the recording medium recovery unit in a vertical direction above the recording medium recovery unit, and has an abutting surface with which the recording medium abuts. A liquid ejecting apparatus comprising: a heater block that dries the liquid that has landed on the recording medium by abutment;
An interleaf supply unit that supplies a sheet of interleaf between the contact surface and the recording medium on the recording medium conveyance unit side of the heater block, and between the contact surface and the recording medium The liquid ejecting apparatus, wherein the sandwiched paper is conveyed together with the recording medium. The liquid ejecting apparatus according to claim 1,
The liquid ejecting apparatus, wherein the shaft portion of the recording medium recovery unit is disposed closer to the recording medium transport unit than a portion of the contact surface of the heater block on the recording medium recovery unit side in a plan view . The liquid ejecting apparatus according to claim 1 or 2,
The liquid ejecting apparatus according to claim 1, wherein the slip sheet supply unit is disposed outside the recording medium recovery unit with respect to a conveyance direction of the recording medium. The liquid ejecting apparatus according to any one of claims 1 to 3,
The liquid ejecting apparatus according to claim 1, wherein an angle formed by the slip sheet and the recording medium is an acute angle rather than a right angle at a position where the slip sheet and the recording medium supplied from the slip sheet supply unit overlap each other. The liquid ejecting apparatus according to claim 1,
A liquid ejecting apparatus comprising: a slip sheet collecting unit that collects the slip sheet on the recording medium collecting unit side of the heater block. The liquid ejecting apparatus according to claim 1,
The liquid ejecting apparatus according to claim 1, wherein the contact surface of the heater block has a slope that descends toward the recording medium recovery unit. The liquid ejecting apparatus according to any one of claims 1 to 6,
The portion of the contact surface that is closest to the recording medium conveyance unit is the same as the portion of the support surface that is closest to the heater block in the horizontal direction, or is positioned above the vertical direction.
The support surface between the recording medium transport unit and the heater block is disposed below the portion closest to the heater block in the vertical direction, and is drawn out from the recording medium transport unit to be connected to the recording medium transport unit. A position detection unit for detecting the recording medium hanging from the heater block;
A control unit that controls the drive of the recording medium recovery unit to recover a predetermined amount of the recording medium when the position detection unit detects the recording medium;
A liquid ejecting apparatus comprising:

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