JP3214738U - Conveying apparatus and printing apparatus provided with the same - Google Patents

Abstract

A transport device capable of improving the transport accuracy of a print medium such as a slide fastener and a printing device including the transport device. The transport device includes two rows of transport belts 31A and 31B that transport the slide fastener 5 in the transport direction, and suction guides 32 that support the transport belts 31A and 31B. The suction guide 32 is formed with a guide groove 42 along the transport direction arranged between the transport belts 31A and 31B in the width direction Y. [Selection] Figure 4

Description

  The present invention relates to a conveyance device that conveys a belt while adsorbing a print medium such as a slide fastener in a single-pass printer, and a printing apparatus including the conveyance device.

2. Description of the Related Art Conventionally, as an example of a printing apparatus, a sublimation transfer apparatus that transfers a transfer sheet on a surface of a plastic fastener (slide fastener) that is a belt-shaped transfer object is known. (See Patent Document 1).
The sublimation transfer device includes a pair of upper and lower belts that can run and a pair of pressure plates that support the pair of belts. The lower belt of the pair of upper and lower belts is provided with two rows of step forming belts, and by the pair of step forming belts, a groove along the transport direction is formed in the central portion in the width direction of the lower belt. Is formed. This groove is configured such that a meshing portion (element) at the center in the width direction of the plastic fastener to be conveyed is disposed.

JP 2017-74707 A

By the way, in the sublimation transfer apparatus described in Patent Document 1, when the plastic fastener is transported, the engaging portion of the plastic fastener is disposed in the groove formed in the lower belt itself, so that the positional displacement of the plastic fastener in the width direction is reduced. Can be reduced to some extent.
However, since the belt that can run is elastic, the plastic fastener to be conveyed may be slightly displaced in the width direction due to elastic deformation of the belt only by disposing the meshing portion in the groove of the belt.

  An object of the present invention is to provide a transport device that can improve the transport accuracy of a print medium such as a slide fastener, and a printing device including the transport device.

A transport device according to the present invention is a transport device provided in a printing device that transports a print medium to a printer head, and includes two rows of transport belts that transport the print medium in the transport direction, and the two rows of transport belts. And a support groove formed along the conveyance direction disposed between the two rows of conveyance belts in a width direction intersecting the conveyance direction. And
According to the conveying device of the present invention, since the guide groove is arranged between the conveying belts divided into two rows, it is possible to arrange the slide fastener element (service tooth) which is one of the printing media in the guide groove. It is possible to reduce the positional deviation in the width direction of the conveyed slide fastener.
Here, the guide groove is formed not on the conveyor belt but on the support member. For this reason, the elastic deformation of the conveyance belt does not affect the positional deviation in the width direction of the slide fastener, and the conveyance accuracy of the slide fastener can be improved.
In addition, by arranging the elements in the guide grooves, both the tape portions of the slide fastener can be brought into close contact with the two rows of conveyor belts without interfering with the elements, and the two rows of conveyor belts are connected by the slide fastener itself. Therefore, it is possible to reduce the conveyance speed error of the two rows of conveyance belts and improve the conveyance accuracy of the slide fastener.
In addition, the conveyance apparatus of this invention can also convey printing media other than a slide fastener, for example, a sheet-like printing medium without protrusions, such as an element.

In the transport device of the present invention, the two rows of transport belts are formed with a plurality of suction holes for sucking and supporting the print medium along the transport direction, and the support member has a plurality of suction holes for sucking the transport belt. It is preferable that the suction hole is formed along the transport direction.
According to such a configuration, by applying a suction force to the plurality of suction holes of the support member, the print medium is sucked and supported by the plurality of suction holes of the two rows of transport belts while sucking the two rows of transport belts. can do.
Here, even if the print medium is a slide fastener, since the element is arranged in the guide groove of the support member, the slide fastener can be sucked and supported with high adhesion between the slide fastener and the two rows of conveyor belts. The conveyance accuracy can be improved.

The conveying device according to the present invention includes a guide roller that guides the print medium on the upstream side of the conveying device, and a roller groove is formed in an intermediate portion of the circumferential surface of the guide roller in the width direction. preferable.
According to such a configuration, the slide fastener is not yet disposed on the support member on the upstream side, or the slide fastener element is disposed in a direction (front-facing, back-facing) that is not disposed in the guide groove of the support member. Even if it is a case, the position shift to the width direction of a slide fastener can be reduced by arrange | positioning an element to the roller groove | channel of a guide roller.

In the transport device according to the present invention, it is preferable that the guide roller is constituted by at least a press guide roller disposed to face the two rows of transport belts and the support member.
According to such a configuration, it is possible to press the printing medium conveyed on the support member to the two rows of conveying belts by the pressing guide roller. For this reason, for example, when the transport device of the present invention is applied to an ink jet printing apparatus, the ink adhesion surface of the print medium cannot be pressed downstream from the printer head of the printing apparatus. By cooperating the presser guide roller with the two rows of conveying belts and the support member, the printing medium can be firmly held and positioned on the upstream side of the conveying device, and the conveying accuracy can be kept high.
In addition, when the print medium to be conveyed is a slide fastener, the slide fastener element is disposed in either the guide groove of the support member or the roller groove of the presser guide roller, regardless of whether the slide fastener is face-up or face-down. As a result, the displacement of the slide fastener in the width direction can be reduced.

In the transport device according to the present invention, it is preferable that the guide roller is configured by at least an end guide roller disposed to face an upstream end in the transport direction of the two rows of transport belts.
According to such a configuration, even if the print medium that has started to be introduced into the upstream end portion of the two rows of conveying belts is still upstream of the support member, the print medium is guided by the end guide rollers. And the conveyance accuracy can be improved.
Further, when the print medium is a slide fastener, when the element is disposed in the roller groove of the end guide roller, the displacement of the slide fastener in the width direction is suppressed by the end guide roller.

The transport device of the present invention includes an introduction guide disposed upstream of the upstream end portion in the transport direction of the two rows of transport belts, and the introduction guide has an introduction guide groove along the transport direction. It is preferable that the guide roller is formed by at least an introduction guide roller disposed to face the introduction guide.
According to such a configuration, the print medium can be guided by the introduction guide and the introduction guide roller even before the print medium is introduced onto the two rows of the conveyance belts. The conveyance accuracy can be improved by adjusting the direction.
In addition, when the print medium is a slide fastener, the element is disposed in either the introduction guide groove of the introduction guide or the roller groove of the introduction guide roller regardless of whether the slide fastener is face-up or face-down. The positional shift in the width direction of the fastener can be reduced.

A transport device according to the present invention is a transport device provided in a printing device that transports a print medium to a printer head, the transport belt transporting the print medium in the transport direction, and the print medium upstream of the transport device. A guide roller for guiding, and a roller groove is formed in an intermediate portion in the width direction of the peripheral surface of the guide roller.
According to the transport device of the present invention, when the print medium is a slide fastener, the surface on which the element of the slide fastener does not protrude is disposed on the transport belt side, and the back surface on which the element projects is disposed on the guide roller side. The element can be arranged in the roller groove of the guide roller. For this reason, the position shift in the width direction of the slide fastener conveyed can be reduced.
Here, the groove for guiding the element is formed as a roller groove in the guide roller, not in the conveying belt. For this reason, the elastic deformation of the conveyance belt does not affect the positional deviation in the width direction of the slide fastener, and the conveyance accuracy of the slide fastener can be improved.
In addition, the conveyance apparatus of this invention can also convey printing media other than a slide fastener, for example, a sheet-like printing medium without protrusions, such as an element.

A printing apparatus according to the present invention includes a printer head and the above-described transport apparatus according to the present invention that transports a print medium to the printer head.
According to the printing apparatus of the present invention, it is possible to configure a printing apparatus capable of exhibiting the same effects as the above-described conveying apparatus of the present invention, and to reduce the positional deviation of the conveyed printing medium with respect to the printer head. And printing accuracy can be improved.

  An object of the present invention is to provide a transport device that can improve the transport accuracy of a print medium such as a slide fastener, and a printing device including the transport device.

1 is a schematic diagram showing an inkjet printer according to an embodiment of the present invention. FIG. 2 is a plan view showing a main part of the ink jet printer according to the embodiment. The top view which abbreviate | omits and shows the principal part of the inkjet printer which concerns on the said embodiment. Sectional drawing which shows the principal part along the IV-IV line shown in FIG. Sectional drawing which shows the principal part along the VV line shown in FIG. Sectional drawing which shows the principal part which concerns on the modification of this invention.

[Configuration of this embodiment]
Embodiments of the present invention will be described below with reference to the drawings.
1 to 3, a single-pass inkjet printer 1 as a printing apparatus according to this embodiment includes a printer head 20 that ejects ink and a slide fastener that is a print medium to which the ink ejected from the printer head 20 is attached. 5 (see FIGS. 4 and 5) is provided with a transport device 30 for transporting 5 in the transport direction X and a suction device 50.
In the inkjet printer 1, ink ejection by the printer head 20, conveyance by the conveyance device 30, and suction by the suction device 50 are controlled by a control device (not shown).

  The printer head 20 has a plurality of head portions 21 arranged in the transport direction X, and is configured to be able to eject ink downward from each head portion 21. The ink colors ejected from each head portion 21 are divided into magenta, yellow, cyan, black, and the like, and color printing is possible on the tape portions 6A and 6B of the slide fastener 5 being conveyed.

The conveyance device 30 introduces a print medium from the upstream side into two rows (a pair of left and right) conveyance belts 31A and 31B, a suction guide 32 as a support member that supports the conveyance belts 31A and 31B, and the conveyance belts 31A and 31B. An introduction guide 33, a guide roller 34 disposed on the upstream side of the transport device 30, and a travel device 35 that travels the transport belts 31 </ b> A and 31 </ b> B in the transport direction X are provided.
The traveling device 35 includes a drive pulley 36, a driven pulley 37, and two auxiliary pulleys 38, and the conveyor belts 31A and 31B are wound around the pulleys 36 to 38. The drive pulley 36 is disposed downstream of the suction guide 32 in the transport direction X. The driven pulley 37 is disposed upstream of the suction guide 32 in the transport direction X.

  The conveyor belts 31A and 31B are configured in the same manner. For example, as shown in FIGS. 2 and 4, a plurality of suction holes 311 for sucking and supporting the tape portions 6A and 6B of the slide fastener 5 are formed on the entire circumference. ing. The plurality of suction holes 311 have a plurality of long holes extending in the longitudinal direction of the transport belts 31 </ b> A and 31 </ b> B arranged in the direction to form a row, and a plurality of rows in the width direction Y orthogonal to the transport direction X. Has been placed. The plurality of suction holes 311 have the above-described hole shape, arrangement, and arrangement in the present embodiment, but are not limited thereto, and the hole shape, arrangement, and the like that can adsorb and support a print medium such as the slide fastener 5 are not limited thereto. It only has to be an array.

  As shown in FIGS. 1 and 3, the suction guide 32 is disposed along the conveyance direction X and below the printer head 20. The front end 321 of the suction guide 32 is located on the upstream side in the transport direction X from the printer head 20, and the rear end 322 of the suction guide 32 is located on the downstream side in the transport direction X from the printer head 20. ing.

  On the upper surface of the suction guide 32, as shown in FIGS. 3 and 4, two rows (a pair of left and right) belt guide grooves 41A and 41B, and a guide groove 42 positioned between the belt guide grooves 41A and 41B in the width direction Y, Is formed.

The belt guide grooves 41A and 41B and the guide groove 42 are formed so as to extend in the transport direction X, respectively, and the belt guide groove 41A and the guide groove 42, and between the belt guide groove 41B and the guide groove 42 are along the transport direction X. Each of them is partitioned by a partition piece 43.
Further, the belt guide grooves 41A and 41B have such widths that the conveyance belts 31A and 31B can be arranged, and the depth at which the upper surfaces of the conveyance belts 31A and 31B are arranged flush with the upper surface of the partition piece 43. It is the size.

  In the present embodiment, as shown in FIG. 4, the guide groove 42 has a pair of left and right groove side surfaces 421 and 422, and a groove bottom surface 423 continuous with the lower edge of the groove side surfaces 421 and 422, and has a substantially U-shaped cross section. It is formed into a shape. The opening width dimension A of the guide groove 42 is set to be equal to or slightly larger than the width dimension of the element 7 (service tooth) of the slide fastener 5 to be transported. The depth dimension B of the guide groove 42 is set to be equal to or greater than the projecting dimension of the element 7 of the slide fastener 5 to be transported from the tape portions 6A and 6B. For this reason, as shown in FIG. 4, the element 7 can be disposed in the guide groove 42, and in the disposed state, the positional shift in the width direction Y of the element 7 is suppressed by the groove side surfaces 421 and 422.

  As shown in FIGS. 3 and 4, a plurality of suction holes 325 </ b> A and 325 </ b> B are formed in the suction guide 32. The plurality of suction holes 325 </ b> A and 325 </ b> B are formed to open at the bottom surfaces (support surfaces) of the belt guide grooves 41 </ b> A and 41 </ b> B and the lower surface of the suction guide 32. In the plurality of suction holes 325A and 325B, a plurality of long holes extending in the longitudinal direction of the suction guide 32 are arranged in a row in the direction, and a plurality of rows are arranged in the width direction Y. The plurality of suction holes 325A and 325B have the above-described hole shape, arrangement, and arrangement in the present embodiment, but are not limited thereto, and are arranged and arranged so that the conveyance belts 31A and 31B can be sucked respectively. It only has to be.

  The plurality of suction holes 325A communicate with the plurality of suction holes 311 of the transport belt 31A disposed in the belt guide groove 41A except for the row of suction holes 325A located on the outermost side in the width direction Y. The suction holes 325A in the outermost row position are arranged so as to suck the outer edge of the transport belt 31A without communicating with the suction holes 311.

  The plurality of suction holes 325B are in the width direction Y with respect to the plurality of suction holes 311 of the transport belt 31B disposed in the belt guide groove 41B, except for the row of suction holes 325B located on the outermost side in the width direction Y. The arrangement is such that the row positions coincide with each other and communicates with the suction holes 311 of the conveyance belt 31B. The suction holes 325B in the outermost row positions are arranged so as to suck the outer edge of the conveyor belt 31B without communicating with the suction holes 311.

As shown in FIGS. 1 and 3, the introduction guide 33 is disposed along the transport direction X on the upstream side of the upstream end 312 in the transport direction X of the transport belts 31 </ b> A and 31 </ b> B. As shown in FIG. 5, the introduction guide 33 includes two rows (a pair of left and right) support surfaces 331A and 331B slidably supported by the tape portions 6A and 6B of the slide fastener 5 and a space between the support surfaces 331A and 331B. Introducing guide grooves 332 located at the center are formed along the transport direction X, respectively. Both edges in the width direction Y of the introduction guide 33 protrude upward.
Since the introduction guide groove 332 is configured in the same manner as the guide groove 42 and has the same size, the introduction guide groove 332 can guide the element 7 of the slide fastener 5.

  In this embodiment, as shown in FIGS. 1 and 2, the guide roller 34 is constituted by an introduction guide roller 44, an end guide roller 45, and a presser guide roller 46 disposed on the upstream side of the conveying device 30. An introduction guide roller 44, an end guide roller 45, and a presser guide roller 46 are arranged in this order from the upstream side of the conveying device 30. The introduction guide roller 44, the end guide roller 45, and the presser guide roller 46 are supported so as to be rotatable about an axis along the width direction Y, respectively.

As shown in FIG. 5, the introduction guide roller 44 is disposed above the introduction guide 33. A pair of left and right guide surfaces 441A and 441B and a roller groove 442 formed between the guide surfaces 441A and 441B that are intermediate portions in the width direction Y of the introduction guide roller 44 are formed on the peripheral surface of the introduction guide roller 44. Has been.
The roller groove 442 has a pair of left and right groove side surfaces 444 and 445 and a groove bottom surface 446 continuous with the groove side surfaces 444 and 445 and has a substantially U-shaped cross section. The opening width dimension of the roller groove 442 is set to the same dimension as the opening width dimension A of the guide groove 42 in this embodiment. The roller groove 442 has a depth dimension that can accommodate the element 7. For this reason, the roller groove 442 is configured to be able to guide the element 7 of the slide fastener 5.
The guide surfaces 441A and 441B are opposed to the support surfaces 331A and 331B of the introduction guide 33 with an interval capable of sandwiching the tape portions 6A and 6B in the vertical direction Z orthogonal to the transport direction X and the width direction Y. Has been placed. The roller groove 442 is disposed so as to face the introduction guide groove 332 of the introduction guide 33 in the vertical direction Z.

  Since the end guide roller 45 has the same configuration and the same size as the introduction guide roller 44, the same reference numerals are given as appropriate, and the description thereof is omitted. The guide surfaces 441A and 441B of the end guide roller 45 are disposed so as to face the upstream end 312 of the conveyor belts 31A and 31B in the vertical direction Z.

As shown in FIG. 4, the presser guide roller 46 is disposed above the suction guide 32 and has a larger diameter than the introduction guide roller 44 and the end guide roller 45. On the circumferential surface of the presser guide roller 46, a pair of left and right presser guide surfaces 461A and 461B and a roller groove 462 formed between the presser guide surfaces 461A and 461B, which is an intermediate portion in the width direction Y of the presser guide roller 46, Is formed.
The roller groove 462 is configured in the same manner as the above-described roller groove 442 and has the same size, so that the element 7 of the slide fastener 5 can be guided.
The presser guide surfaces 461A and 461B are arranged facing the up and down direction Z with an interval at which the tape portions 6A and 6B can be clamped with respect to the transport belts 31A and 31B. The roller groove 462 is disposed so as to face the guide groove 42 of the suction guide 32 in the vertical direction Z.

The suction device 50 includes a partition case 52 that partitions a decompression space below the suction guide 32, and a fan (not shown) attached to the partition case 52.
As shown in FIG. 1, a plurality of partition cases 52 may be provided along the transport direction X, but one may be provided.

[Effect of this embodiment]
Hereinafter, the operation of the inkjet printer 1 according to the present embodiment will be described.
First, the travel device 35 is operated to cause the transport belts 31A and 31B to travel, and the suction device 50 is operated to apply a suction force to the plurality of suction holes 325A and 325B. The conveying belts 31A and 31B are attracted to the suction holes 311 while being sucked into the suction holes 325A and 325B. In this way, the ink jet printer 1 is put into a standby state.

Next, the slide fastener 5 that is a print medium is introduced (carried in) into the conveyor belts 31 </ b> A and 31 </ b> B with the back surface of the slide fastener 5 facing upward. Specifically, the slide fastener 5 is placed on the introduction guide 33 face up. At this time, the tape portions 6A and 6B are supported by the support surfaces 331A and 331B so as to be slidable along the transport direction X, and the element 7 is disposed in the introduction guide groove 332 and guided along the transport direction X.
Subsequently, when the slide fastener 5 is fed in the conveyance direction X toward the conveyance belts 31A and 31B, the guide surfaces 441A and 441B of the introduction guide roller 44 come into contact with the tape portions 6A and 6B from above, and the introduction guide roller. The slide fastener 5 is guided in the transport direction X by both the guide 44 and the introduction guide 33.

  When the slide fastener 5 is carried from the introduction guide 33 to the upstream end portions 312 of the conveyor belts 31A and 31B, the guide surfaces 441A and 441B of the end guide rollers 45 come into contact with the tape portions 6A and 6B from above. Subsequently, the slide fastener 5 is transported in the transport direction X by the travel of the transport belts 31 </ b> A and 31 </ b> B while the slide fastener 5 is guided in the transport direction X by the end guide rollers 45.

When the slide fastener 5 is carried from the upstream end 312 to the front end 321 of the suction guide 32, the suction force generated by the operation of the suction device 50 causes the transport belt 31A, the plurality of suction holes 325A, 325B of the suction guide 32 to pass through. The plurality of suction holes 311 of 31B are provided, and the tape portions 6A and 6B of the slide fastener 5 are sucked and supported in the plurality of suction holes 311. At this time, the element 7 is disposed in the guide groove 42 and is guided in the transport direction X by the guide groove 42.
Further, at the front end portion 321 of the suction guide 32, the presser guide surfaces 461 A and 461 B of the presser guide roller 46 are pressed against the tape portions 6 A and 6 B of the slide fastener 5 from above. Subsequently, the slide fastener 5 is guided and conveyed in the conveyance direction X while being pressed against the conveyance belts 31 </ b> A and 31 </ b> B by the press guide roller 46.

Next, the printer head 20 is actuated to discharge ink and adhere to the tape portions 6A and 6B of the slide fastener 5 being conveyed.
Finally, the slide fastener 5 is taken out from the downstream side of the conveying device 30 and printing by the inkjet printer 1 is completed. Since the slide fastener 5 is conveyed while being guided as described above, the positional deviation of the slide fastener 5 in the width direction Y can be reduced, and the conveyance speed error between the conveyance belts 31A and 31B can be reduced. It is possible to suppress the occurrence of time misalignment and unevenness.

The operation of the ink jet printer 1 itself is the same as described above when the slide fastener 5 is introduced with the surface facing upward and the ink is adhered while being conveyed.
In this case, although not shown, the element 7 of the slide fastener 5 is disposed in the roller grooves 442 and 462 and is guided in the transport direction X, and is not disposed in the introduction guide groove 332 and the guide groove 42.

  The ink jet printer 1 is of a single pass type in which ink is attached to a print medium such as the slide fastener 5 conveyed by the conveying device 30 with respect to the fixed printer head 20, and therefore a plurality of print media are continuously provided. Printing efficiency.

[Effect of this embodiment]
(1) In the present embodiment, the transport device 30 includes two rows of transport belts 31A and 31B that transport the print medium in the transport direction X, and suction guides 32 that support the transport belts 31A and 31B. The guide 32 is characterized in that a guide groove 42 is formed in the width direction Y along the transport direction X arranged between the transport belts 31A and 31B.
Since the guide groove 42 is disposed between the transport belts 31A and 31B divided into two rows because of the above configuration, the element 7 of the slide fastener 5 that is one of the print media can be disposed in the guide groove 42. It is possible to reduce the positional deviation in the width direction Y of the slide fastener 5 to be conveyed.
Here, the guide groove 42 is formed in the suction guide 32 instead of the transport belts 31A and 31B. For this reason, the elastic deformation of the transport belts 31A and 31B does not affect the positional deviation of the slide fastener 5 in the width direction Y, and the transport accuracy of the slide fastener 5 can be improved.
Further, by disposing the element 7 in the guide groove 42, both the tape portions 6A and 6B of the slide fastener 5 can be brought into close contact with the conveying belts 31A and 31B without the element 7 being in the way, and the slide fastener 5 itself. Thus, the conveyance belts 31A and 31B are connected to each other, so that the conveyance speed error of the conveyance belts 31A and 31B can be reduced, and the conveyance accuracy of the slide fastener 5 can be improved.

(2) A plurality of suction holes 311 for sucking and supporting the print medium are formed in the transport belts 31A and 31B along the transport direction X. The suction guide 32 sucks the transport belts 31A and 31B by a plurality of suctions. Holes 325A and 325B are formed along the transport direction X.
Therefore, by applying a suction force to the plurality of suction holes 325A and 325B of the suction guide 32, the print medium is sucked and supported by the plurality of suction holes 311 of the transport belts 31A and 31B while sucking the transport belts 31A and 31B. can do.
Here, even if the print medium is the slide fastener 5, the element 7 is disposed in the guide groove 42 of the suction guide 32, so that the slide fastener 5 and the conveying belts 31 </ b> A and 31 </ b> B are in close contact with each other. 5 can be sucked and supported, and the conveyance accuracy can be improved.

(3) A guide roller 34 that guides the print medium is provided on the upstream side of the conveying device 30, and roller grooves 442 and 462 are formed at intermediate portions in the width direction Y of the peripheral surface of the guide roller 34.
For this reason, when the slide fastener 5 which is a printing medium is not yet arranged on the suction guide 32 on the upstream side, or the direction in which the element 7 of the slide fastener 5 is not placed in the guide groove 42 of the suction guide 32 (front side, face-down) ), The displacement of the slide fastener 5 in the width direction Y can be reduced by disposing the element 7 in the roller grooves 442 and 462 of the guide roller 34.

(4) Since the presser guide roller 46 disposed opposite to the transport belts 31A and 31B and the suction guide 32 is provided, the print medium transported to the transport belts 31A and 31B on the suction guide 32 is pressed by the presser guide roller 46. Can be pressed by. As a result, when the transport device 30 is applied to the ink jet type ink jet printer 1 as in the present embodiment, the ink adhering surface of the print medium cannot be pressed on the downstream side of the printer head 20. By cooperation of the guide roller 46, the transport belts 31A and 31B, and the suction guide 32, the print medium can be firmly held and positioned on the upstream side of the transport device 30, and the transport accuracy can be kept high.
In addition, when the print medium to be conveyed is the slide fastener 5, the element 7 of the slide fastener 5 is formed between the guide groove 42 of the suction guide 32 and the press guide roller 46 regardless of whether the slide fastener 5 is face-up or face-down. Since it is disposed in any one of the roller grooves 462, it is possible to reduce the displacement of the slide fastener 5 in the width direction Y.

(5) Since the end guide roller 45 disposed opposite the upstream end 312 in the transport direction X of the transport belts 31A and 31B is provided, it has begun to be introduced into the upstream end 312 of the transport belts 31A and 31B. Even if the print medium is still upstream of the suction guide 32, the print medium can be guided by the end guide roller 45, and the conveyance accuracy can be improved.
Further, when the print medium is the slide fastener 5, if the element 7 is disposed in the roller groove 442 of the end guide roller 45, the position shift in the width direction Y of the slide fastener 5 is suppressed by the end guide roller 45. .

(6) An introduction guide 33 is provided on the upstream side of the upstream end 312 in the conveyance direction X of the conveyance belts 31A and 31B. The introduction guide 33 has an introduction guide groove 332 along the conveyance direction X. An introduction guide roller 44 that is formed and disposed opposite the introduction guide 33 is provided.
Therefore, even before the print medium is introduced onto the transport belts 31A and 31B, the print medium can be guided by the introduction guide 33 and the introduction guide roller 44, and the print medium is introduced into the transport belts 31A and 31B. The conveyance accuracy can be improved by adjusting the direction.
Further, when the print medium is the slide fastener 5, the element 7 is either the introduction guide groove 332 of the introduction guide 33 or the roller groove 442 of the introduction guide roller 44 regardless of whether the slide fastener 5 is face up or face down. Therefore, it is possible to reduce the displacement of the slide fastener 5 in the width direction Y.

(7) Since the inkjet printer 1 includes the transport device 30 described above, the transport accuracy can be improved, and the positional deviation of the transported slide fastener 5 with respect to the printer head 20 can be reduced, and the printing accuracy can be reduced. Can be improved.

[Modification]
The present invention is not limited to the configuration described in the above embodiment, and modifications within a range in which the object of the present invention can be achieved are included in the present invention.
For example, in the above-described embodiment, the inkjet printer 1 includes the suction devices 50 as well as the transport belts 31 </ b> A and 31 </ b> B and the suction guide 32 having a plurality of suction holes 311 and a plurality of suction holes 325 </ b> A and 325 </ b> B. Although the print medium is configured to be sucked and supported, when the print medium is transported by the transport belts 31A and 31B without being sucked and supported, the plurality of suction holes 311 and the plurality of suction holes described above are configured. The configurations of 325A and 325B and the suction device 50 may be omitted.

  In the above-described embodiment, the roller grooves 442 and 462 are formed in the intermediate portion in the width direction Y of the peripheral surface of the guide roller 34. However, the element 7 of the slide fastener 5 that is a printing medium is located on the upper side (the guide roller 34 side). The roller grooves 442 and 462 may be omitted when the sheet is not transported in a state where the roller grooves 442 project.

In the above-described embodiment, the guide roller 34 is constituted by the introduction guide roller 44, the end guide roller 45, and the presser guide roller 46, but may be constituted by at least one of these, and these There may be other rollers in addition to.
Further, when the configuration is such that the print medium can be appropriately conveyed without the guide roller 34 and the introduction guide 33, these configurations may be omitted.

In the embodiment, the guide groove 42 is formed in the suction guide 32. However, the element 7 of the slide fastener 5 that is a printing medium is conveyed in a direction protruding upward, and the element 7 is conveyed in a direction protruding downward. If not, the structure of the guide groove 42 may be omitted as shown in FIG. In this case, instead of the conveyor belts 31A and 31B, one conveyor belt 31 may be provided. Even in the case where the transport device 30 is configured in this way, the element 7 of the slide fastener 5 can be guided by the guide roller 34, and the same effect as described above can be exhibited.
Similar to the suction guide 32, the configuration of the introduction guide groove 332 of the introduction guide 33 may be omitted.

In addition, the conveying apparatus 30 can also convey a printing medium other than a slide fastener, for example, a sheet-like printing medium without protrusions such as elements.
In the above-described embodiment, the inkjet printer 1 is described as a printing apparatus.

  DESCRIPTION OF SYMBOLS 1 ... Inkjet printer (printing apparatus), 20 ... Printer head, 21 ... Head part, 30 ... Conveyor device, 31 ... Conveyor belt, 311 ... Adsorption hole, 312 ... Upstream end, 31, 31A, 31B ... Conveyor belt, 32 ... Suction guide, 321 ... Front end, 322 ... Rear end, 325A, 325B ... Suction hole, 33 ... Introduction guide, 331A, 331B ... Support surface, 332 ... Introduction guide groove, 34 ... Guide roller, 35 ... Running device, 36 ... Drive pulley, 37 ... Drive pulley, 38 ... Auxiliary pulley, 41A, 41B ... Belt guide groove, 42 ... Guide groove, 421, 422, 444, 445 ... Groove side surface, 423, 446 ... Groove bottom surface, 43 ... Partition piece 44, introduction guide rollers, 441A, 441B ... guide surfaces, 442, 462 ... roller grooves, 45 ... end guide rollers, 46 ... presser guide rollers 461A, 461B ... presser guide surface, 5 ... slide fastener (print medium), 50 ... suction device, 52 ... partition case, 6A, 6B ... tape part, 7 ... element, A ... opening width dimension, B ... depth dimension, X: transport direction, Y: width direction, Z: vertical direction.

Claims (8)

A transport device (30) provided in a printing device (1) for transporting a print medium (5) to a printer head (20),
It has two rows of conveyor belts (31A, 31B) that convey the print medium (5) in the conveyance direction (X), and a support member (32) that supports the two rows of conveyor belts (31A, 31B). ,
The support member (32) has a guide groove (X) in the width direction (Y) that intersects the transport direction (X) and that is disposed between the two rows of transport belts (31A, 31B) along the transport direction (X). 42) is formed. The conveying apparatus characterized by the above-mentioned. A plurality of suction holes (311) for sucking and supporting the print medium (5) are formed in the two rows of transport belts (31A, 31B) along the transport direction (X).
A plurality of suction holes (325A, 325B) for sucking the transport belt (31A, 31B) are formed in the support member (32) along the transport direction (X). The conveying apparatus as described. A guide roller (34) for guiding the print medium (5) on the upstream side of the transport device (30);
The conveying device according to claim 1 or 2, wherein a roller groove (442, 462) is formed in an intermediate portion in the width direction (Y) of the peripheral surface of the guide roller (34). . The guide roller (34) is composed of at least a pressing guide roller (46) disposed to face the two rows of conveyor belts (31A, 31B) and the support member (32). The transport apparatus according to claim 3. The guide roller (34) is configured by at least an end guide roller (45) disposed to face the upstream end (312) in the transport direction (X) of the two rows of transport belts (31A, 31B). The transfer device according to claim 3 or 4, wherein the transfer device is provided. An introduction guide (33) disposed upstream of the upstream end (312) in the transport direction (X) of the two rows of transport belts (31A, 31B);
The introduction guide (33) is formed with an introduction guide groove (332) along the transport direction (X),
The said guide roller (34) is comprised at least by the introduction guide roller (44) arrange | positioned facing the said introduction guide (33). Any one of Claims 3-5 characterized by the above-mentioned. The transfer device according to item. A transport device (30) provided in a printing device (1) for transporting a print medium (5) to a printer head (20),
A transport belt (31, 31A, 31B) for transporting the print medium (5) in the transport direction (X);
A guide roller (34) for guiding the print medium (5) on the upstream side of the transport device (30),
Roller grooves (442, 462) are formed in an intermediate portion in the width direction (Y) of the circumferential surface of the guide roller (34). A printer head (20) and a transport device (30) according to any one of claims 1 to 7 for transporting a print medium (5) to the printer head (20). A printing apparatus characterized by the above.

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