CN109641708B - Conveyance device and image forming apparatus - Google Patents
Conveyance device and image forming apparatus Download PDFInfo
- Publication number
- CN109641708B CN109641708B CN201780052837.2A CN201780052837A CN109641708B CN 109641708 B CN109641708 B CN 109641708B CN 201780052837 A CN201780052837 A CN 201780052837A CN 109641708 B CN109641708 B CN 109641708B
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- CN
- China
- Prior art keywords
- recording medium
- belt member
- image forming
- thin plate
- plate member
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handling Of Sheets (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Ink Jet (AREA)
- Handling Of Cut Paper (AREA)
Abstract
A conveying device is provided with a belt member, a sheet member, and a holding portion. The belt member is formed in a ring shape. The thin plate member is detachably attached to the belt member. The holding portion is provided on the thin plate member and is used for placing a recording medium. The transport device transports the recording medium placed in the holding portion by moving the belt member.
Description
Technical Field
The present invention relates to a transport device for transporting a recording medium and an image forming apparatus including the same.
Background
Conventionally, as a transport device for transporting a recording medium, for example, a technique as described in patent document 1 is disclosed. In the technique described in patent document 1, an adhesive layer is formed by applying an adhesive to one surface of a belt member formed in an endless shape. The recording medium is held and conveyed by the adhesive layer.
In such a conventional transport device, since the recording medium is adhered to the adhesive layer and is in close contact with the adhesive layer, uneven tension is prevented from being applied to the recording medium, and deformation and wrinkles are prevented from occurring in the recording medium. Thus, the recording medium can be conveyed to the image forming region with high accuracy by moving the belt member, and high-quality image forming processing can be performed.
However, since debris of the recording medium, ink at the time of image forming processing, and the like adhere to the holding portion, the force of the holding portion holding the recording medium decreases. Therefore, the recording medium cannot be reliably held by the holding portion, and there is a concern that the position of the recording medium may be shifted during conveyance or an image failure may occur. Therefore, conventionally, when the force of the holding portion holding the recording medium is reduced, a maintenance operation of re-attaching the adhesive layer constituting the holding portion is performed.
Patent document 1: japanese laid-open patent publication No. 2008-247592
However, in order to re-attach the adhesive layer, it is necessary to peel off the old adhesive layer from the tape member, form a new adhesive layer on the tape member, and dry the new adhesive layer. Specifically, the adhesive layer formed on the surface of the belt member is first removed entirely with an organic solvent such as ethyl acetate, and the surface of the belt member is sufficiently dried, and then an adhesive or the like is applied to the surface of the belt member to form the adhesive layer on the belt member. Then, the formed adhesive layer was dried.
In this way, since the use of an organic solvent is required to remove the adhesive layer, there is a problem in safety and hygiene, and the operation of removing the entire adhesive layer from the surface of the tape member is also very troublesome. Further, as described above, a large number of steps and troublesome work are required, and there is a problem that it takes a long time to replace the holding portion.
Disclosure of Invention
In view of the above-described conventional problems, an object of the present invention is to provide a transport device and an image forming apparatus capable of reducing the time required for maintenance work.
In order to solve the above problems and achieve the object of the present invention, a conveyor device according to the present invention includes a belt member, a sheet member, and a holding portion. The belt member is formed in a ring shape. The thin plate member is detachably attached to the belt member. The holding portion is provided on the thin plate member and is used for placing a recording medium. The transport device transports the recording medium placed in the holding portion by moving the belt member.
The image forming apparatus of the present invention includes a conveying device that conveys a recording medium, and an image forming unit that forms an image on the recording medium conveyed by the conveying device. The above-described conveying device is applied to the conveying device.
According to the conveying device and the image forming apparatus having the above configuration, the time required for the maintenance work can be reduced.
Drawings
Fig. 1 is a schematic configuration diagram illustrating an image forming apparatus according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view showing a belt member and a thin plate member of a conveyor according to an embodiment of the present invention.
Fig. 3 is a schematic configuration diagram showing a state in which a thin plate member is removed from a belt member in the conveying device according to the embodiment of the present invention.
Fig. 4 is a cross-sectional view showing a state where a thin plate member is removed from a belt member in the conveying device according to the embodiment of the present invention.
Fig. 5 is an explanatory diagram illustrating an operation of attaching a thin plate member in the conveying device according to the embodiment of the present invention.
Detailed Description
Hereinafter, a mode of carrying out the transport apparatus and the image forming apparatus according to the present invention will be described with reference to fig. 1 to 5. In the drawings, the same components are denoted by the same reference numerals. The present invention is not limited to the following embodiments.
1. Structure of image forming apparatus
First, the overall configuration of an image forming apparatus according to an embodiment of the present invention (hereinafter, referred to as "this example") will be described. Fig. 1 is a schematic configuration diagram of an image forming apparatus of this example, and fig. 2 is a sectional view of a conveyance device in the image forming apparatus of this example.
The image forming apparatus 1 of this example is a so-called ink jet printer that forms an image by discharging ink droplets toward a recording medium. In this example, an example in which a fabric is used as a recording medium will be described.
As shown in fig. 1 and 2, the image forming apparatus 1 includes an image forming unit 2 and a conveying device 10. The conveyor 10 includes two rollers 4 and 5, a belt member 3, a sheet member 6, and a holding portion 7.
The two rollers 4 and 5 are arranged in parallel with a predetermined gap therebetween. One of the two rollers 4 and 5 is configured to be capable of being driven to rotate when a driving force of a driving unit, not shown, is transmitted thereto. The belt member 3 is stretched over the two rollers 4 and 5.
The belt member 3 is formed in a belt shape and in a ring shape having both ends in the longitudinal direction connected to each other. When one of the two rollers 4 and 5 is rotationally driven, the belt member 3 is circulated between the two rollers 4 and 5. This conveys the recording medium placed in the holding unit 7 described later. Further, a thin plate member 6 is detachably attached to the belt member 3.
As shown in fig. 2, a plurality of engaging recesses 11, each representing an example of an engaging portion, are formed on the outer peripheral surface of one surface of the belt member 3. The engaging recess 11 is formed by a plurality of protrusions 12 protruding substantially perpendicularly from the outer peripheral surface of the belt member 3. An engagement convex portion 14 described later is detachably fitted into the engagement concave portion 11.
The thin plate member 6 is formed in a band shape. The length of the thin plate member 6 in the width direction is set to be substantially equal to the length of the belt member 3 in the width direction. The thin plate member 6 is detachably attached to the outer peripheral surface of the belt member 3. Further, the thin plate member 6 covers the outer peripheral surface of the belt member 3.
A plurality of engaging convex portions 14, which represent an example of engaged portions, are formed on a surface of the thin-plate member 6 that faces the outer peripheral surface of the belt member 3. The engaging projection 14 projects substantially perpendicularly from one surface of the thin plate member 6. The engaging convex portion 14 is detachably engaged with an engaging concave portion 11 provided in the belt member 3. In addition, the plurality of protrusions 12 forming the engaging concave portion 11 are fitted between adjacent engaging convex portions 14 among the plurality of engaging convex portions 14.
Thereby, the thin plate member 6 is regulated from moving in the surface direction with respect to the outer peripheral surface of the belt member 3. As a result, when the recording medium placed in the holding portion 7 described later is conveyed, the sheet member 6 can be prevented from shifting in the surface direction with respect to the belt member 3.
The force with which the engaging concave portion 11 of the belt member 3 engages with the engaging convex portion 14 of the sheet member 6 is set to be greater than the force with which the holding portion 7 holds the recording medium, which will be described later. This prevents the thin-plate member 6 from being peeled off from the belt member 3 when the recording medium being conveyed is separated from the holding portion 7.
The shapes of the engaging convex portion 14 and the engaging concave portion 11 are not limited to the columnar shape shown in fig. 2, and various other shapes can be applied as long as they can be engaged with each other, such as a hook shape and a spherical shape.
The holding portion 7 is formed on the other surface of the thin plate member 6 opposite to the one surface on which the engaging convex portion 14 is formed. The holding portion 7 is an adhesive layer made of an adhesive, for example. A recording medium is placed in the holding portion 7 and held. The holding unit 7 is in close contact with the recording medium via the adhesive layer, suppresses uneven tension from being applied to the recording medium, and holds the recording medium so as not to be deformed or wrinkled during conveyance and image formation.
In the present example, an example in which the holding portion 7 is formed by an adhesive layer made of an adhesive agent has been described, but the present invention is not limited to this. As the holding portion, for example, various other configurations such as a configuration in which the recording medium is held by a plurality of projections, a configuration in which the recording medium is held by air suction, or a configuration in which the recording medium is held by electrostatic adsorption can be applied.
In the present example, the example in which the thin plate member 6 is attached to the belt member 3 by the engagement of the engaging concave portion 11 and the engaging convex portion 14 has been described, but the present invention is not limited to this. For example, the belt member 3 and the thin plate member 6 may be provided with engaging projections that engage with each other. Alternatively, magnets may be provided on one or both of the belt member 3 and the thin plate member 6, and the thin plate member 6 may be attached to the belt member 3 by magnetic force. The sheet member 6 may be attached to the belt member 3 by air suction, electrostatic adsorption, or rubber friction.
The image forming unit 2 is disposed above the holding unit 7 of the conveying device 10 at a predetermined interval. A plurality of nozzles are provided on a lower surface of the image forming unit 2 facing the holding unit 7. Ink droplets are discharged from a plurality of nozzles. The image forming unit 2 discharges ink droplets from a plurality of nozzles toward the recording medium that is intermittently transported, thereby forming a predetermined image on the recording medium.
A shuttle image forming unit in which a plurality of nozzles are reciprocated in a direction orthogonal to the direction in which the recording medium is conveyed by the conveying device 10 may be applied as the image forming unit 2. Alternatively, the image forming unit 2 may be a line image forming unit that forms an image by arranging a plurality of nozzles in a direction orthogonal to the direction in which the recording medium is conveyed by the conveyor 10 and discharging ink droplets onto the continuously conveyed recording medium.
In this example, an example of a recording head of a so-called inkjet printer in which the image forming unit 2 is configured to discharge ink droplets toward a recording medium has been described, but the present invention is not limited to this. As the image forming section, for example, a transfer section for sublimation transfer printing, a pin dot type printer head, and other image forming sections of various image forming apparatuses can be applied.
2. Sheet member and holding portion exchanging operation
Next, an example of the replacement operation of the thin-plate member 6 and the holding portion 7 in the image forming apparatus 1 having the above-described configuration will be described with reference to fig. 3 to 5.
Fig. 3 and 4 are explanatory views showing a state where the thin plate member 6 is removed from the belt member 3, and fig. 5 is an explanatory view showing a state where the thin plate member 6 is attached to the belt member 3.
If the holding portion 7 is contaminated by debris of a fabric as a recording medium, ink in the image forming portion 2, or the like, a force for holding the recording medium is reduced. Therefore, the holding portion 7 needs to be replaced. First, as shown in fig. 3 and 4, the worker pulls the thin plate member 6 in a direction away from the outer peripheral surface of the belt member 3. Thereby, as shown in fig. 4, the engagement between the engagement concave portion 11 and the engagement convex portion 14 is released, and the engagement convex portion 14 is pulled out from the engagement concave portion 11. As a result, the holding portion 7 and the thin plate member 6 can be easily peeled off from the belt member 3.
As described above, according to the conveying device 10 of this embodiment, since it is not necessary to peel off the adhesive constituting the holding portion 7 using an organic solvent or the like as in the conventional art, the operation of removing the holding portion 7 from the belt member 3 can be easily performed. The holding portion 7 and the thin plate member 6 may be removed from the belt member 3 by winding the thin plate member 6 with the roller-shaped attaching jig 21 shown in fig. 5.
Next, the thin plate member 6 is attached to the belt member 3 using the attaching jig 21 around which the new thin plate member 6 is wound. At this time, the engaging convex portion 14 provided on the thin plate member 6 is fitted into the engaging concave portion 11 provided on the belt member 3, and the engaging convex portion 14 is engaged with the engaging concave portion 11.
In addition, a holding portion 7 is formed in advance in the new thin plate member 6. Therefore, the work of applying the adhesive to the belt member 3 and drying the adhesive can be omitted. The length of the thin plate member 6 in the longitudinal direction is substantially the same as the length of one turn of the belt member 3. Therefore, the outer peripheral surface of the belt member 3 can be entirely covered with the thin plate member 6.
The thin plate member 6 is disposed on the belt member so that both ends in the longitudinal direction thereof are in contact with each other or are spaced apart from each other. The slits at both ends in the longitudinal direction of the joint of the thin-plate member 6 are filled with, for example, the same adhesive as the adhesive constituting the holding portion 7. This eliminates a step in the holding portion 7 caused by the seam of the sheet member 6.
In the above example, the thin plate member 6 having the same length in the longitudinal direction as the length of one circumference of the belt member 3 is used, but the present invention is not limited thereto. For example, a thin plate member 6 longer than one circumference of the belt member 3 may be prepared, and the outer circumferential surface of the belt member 3 may be covered with the thin plate member 6, and then the excess thin plate member 6 may be cut.
As described above, according to the conveyor 10 of this example, the time required for the maintenance work of the conveyor 10 can be reduced by replacing the thin plate member 6 in which the holding portion 7 is formed in advance. Further, since the time taken to replace the holding portion 7 is shortened, the time required to stop the image forming apparatus 1 at the time of replacement can also be shortened, and the work efficiency of the image forming apparatus 1 can be improved.
Further, by peeling off the holding portion 7 with the lowered holding force and forming a new holding portion 7, the old thin-plate member 6 removed from the belt member 3 can be reused. Further, since the work of forming the new holding portion 7 on the thin-plate member 6 is removed from the belt member 3, the image forming work of the image forming apparatus 1 and the conveying work of the conveying apparatus 10 are not affected.
The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims.
In the above-described embodiment, the example in which the fabric is used as the recording medium has been described, but the present invention is not limited thereto, and various other recording media such as paper, plastic film, and glass plate can be used as the recording medium.
Description of the reference numerals
1 … image forming device, 2 … image forming part, 3 … belt part, 4, 5 … roller, 6 … thin plate part, 7 … holding part, 10 … conveying device, 11 … engaging concave part (engaging part), 12 … projection, 14 … engaging convex part (engaged part), 21 … sticking clamp.
Claims (4)
1. A conveyance device is provided with:
a belt member formed in a ring shape;
a thin plate member detachably attached to the belt member;
a holding portion provided on the thin plate member and on which a recording medium is placed;
a joint portion formed in the belt member; and
a joining section formed on a surface of the thin plate member on a side opposite to the holding section and joined to the joining section,
the recording medium placed in the holding portion is conveyed by moving the belt member,
the joint portion has a plurality of recesses formed in the belt member,
the engaged portion has a plurality of convex portions respectively fitted into the plurality of concave portions,
the force with which the plurality of concave portions and the plurality of convex portions are engaged is set to be larger than the force with which the holding portion holds the recording medium.
2. The delivery device of claim 1,
the recording medium is a fabric,
the holding section has an adhesive layer in close contact with the fabric.
3. The delivery device of claim 1 or 2,
the recording medium forms an image by ink.
4. An image forming apparatus includes:
a conveying device according to any one of claims 1 to 3; and
and an image forming unit that forms an image on the recording medium conveyed by the conveying device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-168418 | 2016-08-30 | ||
| JP2016168418 | 2016-08-30 | ||
| PCT/JP2017/023871 WO2018042855A1 (en) | 2016-08-30 | 2017-06-29 | Transfer device and image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109641708A CN109641708A (en) | 2019-04-16 |
| CN109641708B true CN109641708B (en) | 2020-10-02 |
Family
ID=61300487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780052837.2A Active CN109641708B (en) | 2016-08-30 | 2017-06-29 | Conveyance device and image forming apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7003923B2 (en) |
| CN (1) | CN109641708B (en) |
| WO (1) | WO2018042855A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2891796B2 (en) * | 1990-04-17 | 1999-05-17 | キヤノン株式会社 | Conveying device for conveying recording material, and recording device provided with the conveying device |
| JPH0676818B2 (en) * | 1992-04-22 | 1994-09-28 | 日本メクトロン株式会社 | Toothed belt |
| JPH06220781A (en) * | 1993-01-28 | 1994-08-09 | Kanebo Ltd | Printing method and apparatus therefor |
| CN2216989Y (en) * | 1994-11-25 | 1996-01-10 | 黄裕仁 | Plate chair type conveyer belt |
| JPH1120973A (en) * | 1997-07-03 | 1999-01-26 | Canon Inc | Sheet feeding device and image processing device |
| JP2008247592A (en) * | 2007-03-30 | 2008-10-16 | Seiren Co Ltd | Conveying device, and printing device having the same, and printing method |
| JP2009132515A (en) | 2007-11-30 | 2009-06-18 | Brother Ind Ltd | Recording device |
| CN203486604U (en) * | 2013-06-27 | 2014-03-19 | 霓达株式会社 | Circular flat belt |
| CN204041864U (en) * | 2014-07-03 | 2014-12-24 | 舟山华意汽车配件制造有限公司 | Combined double-face driving belt |
| JP2016150806A (en) * | 2015-02-16 | 2016-08-22 | キヤノン株式会社 | Sheet conveyance device and printer |
-
2017
- 2017-06-29 WO PCT/JP2017/023871 patent/WO2018042855A1/en active Application Filing
- 2017-06-29 CN CN201780052837.2A patent/CN109641708B/en active Active
- 2017-06-29 JP JP2018536981A patent/JP7003923B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109641708A (en) | 2019-04-16 |
| JP7003923B2 (en) | 2022-01-21 |
| JPWO2018042855A1 (en) | 2019-06-24 |
| WO2018042855A1 (en) | 2018-03-08 |
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