JP2010179975A - Method for manufacturing conveying belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a conveying belt capable of preventing the generation of static electricity during working processing. <P>SOLUTION: The method for manufacturing the conveying belt includes a conductive layer forming step of forming a conductive layer at one surface side of a base material forming a body of the conveying belt, and a working step of movably holding a surface at the side with the conductive layer in the base material formed thereon by using a plurality of holding rollers, and executing predetermined working for forming the conveying belt on the base material. In the working step, at least any one of the plurality of holding rollers is grounded. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a conveyor belt.

  In an ink jet printer, recording is performed on a medium by ejecting ink from the ink jet head onto the medium while conveying a medium such as paper. As a means for transporting the medium, a transport belt stretched around a roller is used (see, for example, Patent Document 1).

JP 2006-347039 A

  By the way, the transport belt is manufactured by performing predetermined processing while rotating in a state where a belt base material is stretched between a plurality of rollers (holding members). Therefore, the belt base material generates static electricity due to friction with the roller, and the belt base material is charged during the belt manufacturing process. As a result, foreign substances adhere to the charged belt base material, which may deteriorate the quality of the manufactured conveyor belt.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method for manufacturing a conveyor belt that can prevent generation of static electricity during processing.

  In order to solve the above problems, a method for manufacturing a transport belt according to the present invention is a method for manufacturing a transport belt for transporting a transported object, wherein a conductive layer is provided on one side of a base material that is a main body of the transport belt. A conductive layer forming step to be formed, and a predetermined surface for forming the transport belt on the base material while holding the surface of the base material on which the conductive layer is formed movably using a plurality of holding rollers. In the processing step, at least one of the plurality of holding rollers is in a grounded state.

  According to the method for manufacturing a conveyor belt of the present invention, since the processing step is performed in a state where any one of the holding rollers is grounded, static electricity can be discharged to the outside by the contact between the conductive layer and the holding roller. Therefore, it is possible to reliably prevent static electricity from being charged on the substrate in the manufacturing process. Therefore, it is possible to prevent the occurrence of a problem that the quality of the transport belt is deteriorated due to foreign matters adhering to the base material due to static electricity, and it is possible to provide a highly reliable transport belt.

Further, in the method of manufacturing the transport belt, in the conductive layer forming step, at least one of the plurality of holding rollers is grounded and the base material is moved using the plurality of holding rollers, It is preferable to apply the conductive layer forming material on one side of the substrate.
According to this configuration, since the conductive layer forming material is applied while moving the base material, the conductive layer can be easily and reliably formed on the one surface side of the base material. In addition, since at least one of the plurality of holding rollers is grounded, static electricity charged on the base material during the formation of the conductive layer can be discharged to the outside.

Moreover, in the manufacturing method of the said conveyor belt, it is preferable to perform the said predetermined process, moving the said base material in the said process step.
According to this configuration, since the holding member and the base material come into contact with each other due to the movement of the base material, static electricity is easily generated, and thus the present invention is more effective.

It is a figure which shows typically the structure of an inkjet printer. It is a figure which shows the structure of a conveyance unit. It is a figure for demonstrating the manufacturing method of a conveyance belt. It is a figure for demonstrating a 1st process. It is a figure for demonstrating a 2nd process. It is a figure for demonstrating a 3rd process.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram schematically illustrating the configuration of an ink jet printer equipped with a transport device including a transport belt according to the present invention.
FIG. 1A is a side view of the ink jet printer 1, and FIG. 1B is a plan view of the ink jet printer 1.

  As shown in FIGS. 1A and 1B, the ink jet printer 1 includes a recording unit 2, a paper feeding unit 3, and a paper discharging unit 4, and recording paper (conveyed body). A fluid ejecting apparatus that records on a medium such as P. The ink jet printer 1 is arranged so that the recording unit 2 is sandwiched between the paper feed unit 3 and the paper discharge unit 4.

  The recording unit 2 is a unit that performs recording on the recording paper P. The recording unit 2 is provided with a transport unit 20 and a recording head 21. The transport unit 20 transports the recording paper P while supporting it. The recording head 21 is provided so that ink can be ejected onto the recording paper P, and is connected to an ink supply source (not shown).

  The paper feed unit 3 includes a support member 30 that supports the recording paper P and a paper feed roller 31 that feeds the recording paper P to the recording unit 2. The support member 30 can support a plurality of recording sheets P. The paper feed roller 31 has a main driving roller 31a and a driven roller 31b, and feeds the recording paper P between the main driving roller 31a and the driven roller 31b. The main driving roller 31a is connected to a driving mechanism (not shown).

  The paper discharge unit 4 includes a support member 40 that supports the recording paper P and a paper discharge roller 41 that discharges the recording paper P from the recording unit 2. The support member 40 can support a plurality of recording sheets P, and is formed in a tray shape, for example. The paper discharge roller 41, like the paper supply roller 31, has a main driving roller 41a and a driven roller 41b, and discharges the recording paper P between two rollers. The main driving roller 41a is connected to a driving mechanism (not shown).

FIG. 2 is a diagram illustrating a configuration of the transport unit 20 of the recording unit 2. FIG. 2A is a side view of the transport unit 20, and FIG. 2B is a plan view of the transport unit 20.
As shown in FIGS. 2A and 2B, the transport unit 20 includes a transport roller 22, a transport belt 23, a platen 24, a side plate 25, and a drive mechanism 26.

  The conveyance roller 22 has three types of rollers: a main driving roller 22a, a driven roller 22b, and a tension roller 22c. The main driving roller 22 a is disposed on the leading end side in the conveyance direction of the recording paper P, and is rotated by drive control of the drive mechanism 26. The driven roller 22b is provided on the rear end side in the conveyance direction of the recording paper P, and is disposed at the same height as the main driving roller 22a as shown in FIG. The tension roller 22c is disposed at a lower position than the main driving roller 22a and the driven roller 22b as shown in FIG. 2A, and the main driving roller 22a in a plan view as shown in FIG. 2B. And the driven roller 22b.

  The conveyance belt 23 is provided in an annular shape, and the recording paper P can be placed on the surface thereof. The conveyor belt 23 has, for example, a total circumference of 2 m and a width of 700 mm to 800 mm. The thickness is, for example, 0.125 mm. The transport belt 23 has a conductive layer (details will be described later) formed on the inner surface side.

  The inner surface of the conveyor belt 23 is in contact with the main driving roller 22a, the driven roller 22b, and the tension roller 22c, and is stretched while being tensioned by the tension roller 22c. This prevents belt slack. The rotation of the main driving roller 22a is transmitted to the conveyor belt 23 to rotate the conveyor belt 23, and the rotation of the conveyor belt 23 rotates the driven roller 22b and the tension roller 22c.

  A high μ layer 23a having a high friction coefficient is formed on the surface of the transport belt 23, and the recording paper P is transported by a frictional force. Further, the conveying belt 23 is provided with a suction hole 23b for sucking the surface side, and the suction hole 23b is connected to a suction mechanism (not shown). The recording paper P can be sucked and conveyed by the suction holes 23b. A magnetic encoder pattern 23c is also formed on the conveyor belt 23.

  The platen 24 is provided on the inner surface side of the conveyor belt 23, and is disposed between the main driving roller 22a and the driven roller 22b in a plan view as shown in FIG. The platen 24 supports the position where the recording paper P is transported in the transport belt 23, so that the distance between the recording head 21 and the recording paper P is kept constant.

  The side plate 25 is a plate-like member that supports the three conveyance rollers 22 as shown in FIG. 2A, and is provided so as to protrude from the conveyance surface of the conveyance belt 23 in a side view. As shown in FIG. 2B, the side plate 25 is provided along the side of the platen 24 in the transport direction in plan view. For this reason, the recording paper P is conveyed between the side plates 25 by the rotation of the conveying belt 23 with the protruding portion of the side plate 25 as a guide and passes therethrough.

Next, the manufacturing method of the said conveyance belt 23 is demonstrated, referring FIGS. 3-5.
First, as shown in FIG. 3A, a belt member (base material) 50 that is a main body of the conveyor belt 23 is made up of a processing main driving roller (holding roller) 62, a processing driven roller 63 (holding roller), and a processing belt. It is wound around the tension roller 65 (holding roller). As a result, tension is applied to the belt member 50. The belt member 50 is configured by welding a sheet-like member made of, for example, polyethylene terephthalate (PET).

  Subsequently, as shown in FIG. 3B, the processing main driving roller 62 is rotated by a drive mechanism (not shown). As a result, the processing driven roller 63 and the processing tension roller 65 rotate. Then, a conductive material (conductive layer forming material) 64a is applied to the inner surface 50b side (one surface side) of the belt member 50 by the dispenser D and dried to form the conductive layer 64 (conductive layer forming step). As the conductive material, various materials can be used as long as they include a metal or the like and have conductivity. Here, the inner surface 50 b side of the belt member 50 means a surface on the side in contact with the processing main driving roller 62, the processing driven roller 63, and the processing tension roller 65.

  Since the conductive material is applied while moving the belt member 50 in this manner, the conductive layer 64 can be easily and reliably formed on the inner surface 50b side of the belt member 50. In the present embodiment, the processing tension roller 65 is grounded when the conductive layer 64 is formed.

  By the way, since the process of forming the conductive layer 64 is performed in a state where the belt member 50 is rotated as described above, the belt member 50 includes the processing main driving roller 62, the processing driven roller 63, and the processing tension roller 65. Static electricity is generated by friction. On the other hand, in this embodiment, since the processing tension roller 65 is in a grounded state, static electricity can be discharged to the outside when the belt member 50 and the processing tension roller 65 come into contact with each other. Therefore, it is possible to prevent the belt member 50 from being charged when the conductive layer 64 is formed, and it is possible to prevent foreign matters from adhering to the belt member 50 due to static electricity.

  Subsequently, predetermined processing for forming the transport belt 23 is performed in a state where the conductive layer 64 is formed on the inner surface 50b side of the belt member 50 (processing step). In the present embodiment, a plurality of processing processes, for example, three processing processes are performed as the predetermined processing. The first processing process is a process for applying a frictional force to the surface 50 a of the belt member 50. The second processing process is a drilling process for forming the suction holes 23b in the belt member 50. The third processing process is a process of forming a magnetic encoder on the side portion of the belt member 50.

Hereinafter, the processing steps will be specifically described.
First, as shown in FIGS. 4A and 4B, the main driving roller 62 for processing and the driven roller 63 for processing are rotated by a driving mechanism (not shown) so that the belt member 50 is rotated and moved. A liquid containing a material having a high friction coefficient is sprayed onto the surface (outer surface) 50 a of the belt member 50 by the coating device 5 such as a head. As a result, a high μ layer 23a having a high friction coefficient is formed on the surface 50a of the belt member 50 (first processing). For example, polyurethane is used as the material of the high μ layer 23a. In the present embodiment, the processing tension roller 65 is grounded also in the step of forming the high μ layer 23a.

  Since the process of forming the high μ layer 23a is performed in a state where the processing tension roller 65 is grounded, static electricity can be discharged to the outside when the conductive layer 64 and the processing tension roller 65 come into contact with each other. Thereby, it is possible to reliably prevent the belt member 50 from being charged when the high μ layer 23a is formed. Therefore, it is possible to prevent foreign matter from adhering to the belt member 50 due to static electricity during the formation process of the high μ layer 23a.

  After the high μ layer is formed on the surface 50a of the belt member 50, as shown in FIGS. 5A and 5B, the belt member 50 and the belt member 50 are A through hole is formed in the conductive layer 64 to form a suction hole 23b (second processing). In the present embodiment, the processing tension roller 65 is grounded also in the step of forming the suction hole 23b.

  Since the process of forming the suction hole 23b is performed in a state where the processing tension roller 65 is grounded, static electricity can be discharged to the outside by the contact between the conductive layer 64 and the processing tension roller 65. Thereby, it is possible to reliably prevent the belt member 50 from being charged when the suction hole 23b is formed. Therefore, it is possible to prevent foreign matter from adhering to the belt member 50 due to static electricity during the formation process of the suction hole 23b.

  The suction hole 23b is for sucking the surface 50a side of the belt member 50, for example. In addition, the air blow device 7 is disposed above the processing main driving roller 62 and air is blown against the belt member 50 to remove foreign matter adhering to the suction holes 23b and the belt member 50.

  After the suction holes 23b are formed in the belt member 50, as shown in FIGS. 6A and 6B, the magnetic material is applied by the coating device 8 such as an ink jet head in a state where the belt member 50 is rotated and moved. Is sprayed onto the belt member 50 (third processing). A magnetic encoder pattern 23 c is formed on the side of the belt member 50. In this embodiment, the processing tension roller 65 is grounded also in the process of forming the magnetic encoder pattern 23c.

  Since the process of forming the magnetic encoder pattern 23c is performed in a state where the processing tension roller 65 is grounded, static electricity can be discharged to the outside by the contact between the conductive layer 64 and the processing tension roller 65. Thereby, it is possible to reliably prevent the belt member 50 from being charged when the pattern 23c of the magnetic encoder is formed. Therefore, it is possible to prevent foreign matter from adhering to the belt member 50 due to static electricity during the process of forming the magnetic encoder pattern 23c.

  As described above, according to the present embodiment, the conductive member 64 formed on the inner surface 50b side of the belt member 50 can prevent the belt member 50 from being charged in a series of processing steps. Therefore, the problem that foreign matter adheres to the belt member 50 due to static electricity generated during the processing is prevented, and generation of defective products due to the foreign matter can be prevented. Therefore, the transport belt 23 with high reliability can be manufactured.

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.
In the above-described embodiment, the case where only the processing tension roller 65 is grounded when the belt member 50 is processed has been described. However, the processing main driving roller 62 and the processing driven roller 63 may also be grounded. . In this way, it is possible to better prevent the belt member 50 from being charged in the manufacturing process.

  In the above-described embodiment, the case where the processing tension roller 65 is used when the belt member 50 is processed has been described. However, the conveyor belt is stretched over only the processing main driving roller 62 and the processing driven roller 63. 23 may be manufactured. In this case, at least one of the processing main driving roller 62 and the processing driven roller 63 may be in a grounded state.

  In the above-described embodiment, the example in which the suction hole 23b is formed using a mold has been described. However, the present invention is not limited to this, and a configuration using, for example, laser irradiation may be used.

  In the above embodiment, the conveyor belt 23 is formed in a state of being stretched over the processing main driving roller 62 and the processing driven roller 63. However, the transporting roller 22, the platen 24, and the side plate used in the transporting unit 20 are used. 25 and the drive mechanism 26 may be assembled, and the belt member 50 may be passed over to manufacture the transport belt 23.

  In the above-described embodiment, an example in which the pattern 23c of the magnetic encoder is formed on the conveyor belt 23 in the process of manufacturing the conveyor belt 23 has been described. However, the present invention is not limited to this. The present invention can also be applied to the case of forming a pattern of a mold encoder.

  In this case, for example, a coating material having a high reflectance can be applied to the belt member 50 using the coating device 8 such as an ink jet head to form a pattern of the light reflection type encoder. Further, a coating material having a high reflectance is once applied to the entire surface of the portion where the pattern of the light reflection type encoder is to be formed using the coating device 8, and the patterning is performed, for example, by removing a part of the coating material using a laser irradiation device. It may be a simple technique.

P ... recording paper (conveyed body), 23 ... conveying belt, 50 ... belt member (base material), 50b ... inner surface (one surface), 62 ... working main roller (holding roller), 63 ... working driven roller ( Holding roller), 64... Conductive layer, 64 a... Conductive material (conductive layer forming material), 65 .. processing tension roller (holding roller)

Claims (3)

A method for manufacturing a conveyor belt that conveys a conveyed object,
A conductive layer forming step of forming a conductive layer on one side of the base material that is the main body of the conveyor belt;
A processing step of holding the surface of the base material on which the conductive layer is formed movably using a plurality of holding rollers, and applying a predetermined processing for forming the transport belt on the base material; Including,
In the processing step, at least one of the plurality of holding rollers is in a grounded state.   In the conductive layer forming step, at least one of the plurality of holding rollers is grounded and the base material is moved using the plurality of holding rollers, and the conductive layer is formed on one side of the base material. A method for manufacturing a conveyor belt, comprising applying a forming material.   In the said process process, the said predetermined process is performed, moving the said base material, The manufacturing method of the conveyance belt of Claim 1 or 2 characterized by the above-mentioned.

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