WO2015064184A1

WO2015064184A1 - Blade support body for electronic photograph device

Info

Publication number: WO2015064184A1
Application number: PCT/JP2014/071565
Authority: WO
Inventors: 真司堀; 賢廣富; 剛千増山; 均高嶋; 正宏中見; 英貴中島; 健一藤崎
Original assignee: バンドー化学株式会社
Priority date: 2013-10-31
Filing date: 2014-08-18
Publication date: 2015-05-07
Also published as: JPWO2015064184A1; CN105637427A

Abstract

The present invention addresses the issue of standardization of jigs used for positioning a plurality of types of blade support bodies having different shapes, by making uniform the position that a machining reference structure is provided between blade support bodies having different shapes and by using a jig that has a fitting structure that fits with this machining reference structure. Personnel and cost loads during jig production are reduced as a result of jigs being standardized relative to blade support bodies having different shapes. By combining standardized jigs with a continuous production device, blades of many different types and having different blade support body shapes can be continuously produced without changing jigs. As a solution, a blade support body is provided that has at least two machining reference structures and at least two attachment reference structures formed therein.

Description

Blade support for electrophotographic apparatus

The present invention relates to a blade used in an electrophotographic apparatus such as a copying machine, a printer, a facsimile, or a complex machine of these. In particular, the present invention relates to a blade support constituting the blade.

In electrophotographic apparatuses such as copying machines and printers, a cleaning blade that scrapes off excess toner and a developing blade that uniformizes the thickness of toner in a developing unit are used. These blades are formed by joining an elastic body to a metal blade support.
The blade support is usually perforated with attachment reference holes and attachment holes. The attachment reference hole is used for fitting and aligning with a pin or the like formed in the electrophotographic apparatus when the blade is attached to the electrophotographic apparatus. The attachment hole is used for attaching the blade to the electrophotographic apparatus with screws or the like in a state of being aligned with the attachment reference hole.
The attachment reference hole is used not only for attaching the blade to the electrophotographic apparatus but also for positioning when joining the elastic body to the blade support. Specifically, the blade support is joined to the elastic body in a state in which the attachment reference hole is fitted to the positioning pin of the movable jig and aligned (see Patent Document 1).

JP-A-6-214499

The mounting reference hole of the blade support is drilled at different positions depending on the design of the electrophotographic apparatus. A jig used for joining the blade support and the elastic body requires a protrusion that fits into the attachment reference hole of the blade support at a position corresponding to the position of the attachment reference hole of the blade support. Therefore, it is necessary to manufacture a jig having a different projection position for each blade support having a different mounting reference hole position. In order to mass-produce blades, a plurality of jigs are required per product, and it is a heavy burden to manufacture a large number of jigs that require high machining accuracy for each product.

In order to solve the above problems, the configuration of the present invention is as follows.
1. A blade support, wherein two or more processing reference structures and two or more attachment reference structures are formed.
2. The three-dimensional shape of the processing reference structure is any one of a hole, a concave portion, and a convex portion, or a combination thereof. A blade support according to claim 1.
3. One of the processing reference structures is a circular hole or recess, and the remainder is an oblong hole or recess. Or 2. A blade support according to claim 1.
4.1. ~ 3. A blade obtained by bonding an elastic body to the blade support according to any one of the above.
5. 3. The elastic body is a multilayer elastic body; The blade described in.
6). 3. The processing reference structure of the blade support is a hole, and the hole is closed; Or 5. The blade described in.
7). 5. The hole is closed by a sealing tape, a screw, a rivet, a sealant, and an elastic body joined so as to cover the hole; The blade described in.
8.1. ~ 3. A set of the blade support and the jig, comprising the blade support according to any one of the above and a jig having a fitting structure that fits into the processing reference structure of the blade support.
9. 7. The jig is capable of placing two blade supports so that elastic joint portions face each other, and a blade receiving space is provided between the facing portions. Set described in.
10.8. Or 9. Using the set described in the above, the blade support and the elastic body are placed in a state in which the processing reference structure of the blade support and the fitting structure of the jig are fitted and aligned. Joining method characterized by joining.
11 A step of continuously forming a belt using a forming drum in which forming grooves each having a width corresponding to two elastic bodies are formed;
A fixed length cutting step of cutting the belt into a predetermined length to form a sheet;
Two blade supports placed on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted to each other. A support joining process to form a sheet with a sheet,
A fixed width cutting step of cutting the sheet with both side support members at the width center to obtain two blades;
The blades are continuously manufactured in this order.
12 Forming a cylindrical sheet by centrifugal molding,
Cutting out a sheet having a width corresponding to two elastic bodies from the cylindrical sheet;
Two blade supports placed on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted to each other. A support joining process to form a sheet with a sheet,
A fixed width cutting step of cutting the sheet with both side support members at the width center to obtain two blades;
The blades are continuously manufactured in this order.
13. A molding apparatus for molding a belt having a width corresponding to two elastic bodies using a molding drum having a molding groove on the outer periphery;
A fixed length cutting device that cuts the belt into a predetermined length to form a sheet,
Two blade supports mounted on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted, and both sides are supported. A joining device for a body-attached sheet,
A fixed width cutting device for cutting the sheet with the support on both sides at the center of the width;
A support mounting device for mounting a blade support on a jig;
A continuous manufacturing apparatus for blades comprising at least
14.4. ~ 7. An electrophotographic apparatus comprising the blade according to any one of the above.

¡Two or more machining reference structures are formed on the blade support separately from the mounting reference structure. By unifying the position where the machining reference structure is provided between blade supports of different shapes, and using a jig having a fitting structure that fits with this machining reference structure, positioning of multiple types of blade supports of different shapes is possible. A common jig can be used. Since the jig can be used in common for the blade supports of different shapes, the human burden and cost burden of jig production are reduced. By combining a common jig with a continuous production apparatus, various types of blades having different blade support shapes can be continuously produced without changing the jig.

A blade support (a) having a processing reference structure outside the elastic body joint, and a blade support (b) having a processing reference structure inside the elastic body joint. A blade (a) in which a hole as a processing reference structure is closed with a seal tape, and a blade (b) in which a hole as a processing reference structure is bonded and closed so as to cover an elastic body. Jig with a pin fitting structure. The processing standard structure of the blade support and the fitting structure of the jig are fitted together. A jig that can place two blade supports. Sectional drawing (a) of the blade using the whole multilayer elastic body, Sectional view (b) of the blade using the partial multilayer elastic body. A continuous blade manufacturing method using a continuous molding method. Arrangement example of continuous production equipment. In a joining apparatus, a sheet with both side support bodies joined on a jig. In the fixed width cutting device, the sheet with the support on both sides is cut at the width center on the jig. In the support placing device, two blade supports are placed on the jig so that the elastic joint portions face each other.

1. 1. Blade support 2. Elastic body joining surface Strength reinforcement surface 4. 4. Elastic joint portion Reference mounting structure 6. Mounting hole 7. Processing reference structure8. Elastic body 9. Blade 10. Jig 11. Fitting structure 12. Blade receiving space 13. Edge layer 14. Base layer B. Belt S1. Sheet S2. Sheet with support on both sides 20. Molding device 21. Discharge port 22. External heating device 23. Molding drum 24. Endless belt 25. Preheating roll 26. Guide roll 27. Tension roll 28. Cooling roll 29. Cooling device 30. Fixed length cutting device 31. Feed roll 40. Support bonding apparatus 50. Fixed width cutting device 60. Support mounting device

1A and 1B show a configuration example of the blade support of the present invention.
The blade support 1 is formed by pressing a metal plate and bending it along a predetermined fold line extending in the length direction, and has an elastic body joining surface 2 and a strength reinforcing surface 3. By providing the strength reinforcing surface 3 by bending the metal plate, the rigidity of the blade support 1 is increased and it is difficult to deform. The elastic joint surface 2 has an elastic joint 4 to which the elastic body 8 is joined. The elastic body bonding portion 4 may be either the front or back surface of the elastic body bonding surface 2.
The material of the blade support 1 can be used without any particular limitation as long as it has excellent rigidity. For example, metal plates, such as an electrogalvanized steel plate, a hot dip galvanized steel plate, aluminum, and stainless steel, are mentioned. Among these, an electrogalvanized steel sheet and a hot dip galvanized steel sheet are particularly preferable because they are excellent in workability and easily obtain dimensional accuracy. The metal plate may be subjected to chromate treatment, zinc phosphate treatment or the like, and may be provided with an inorganic lubricating film or an organic lubricating film.

In the blade support 1 of this configuration example, an attachment reference structure 5 that is two holes and two attachment holes 6 are formed. The attachment reference structure 5 is used for fitting and aligning with a pin or the like formed in advance in the electrophotographic apparatus when the blade is attached to the electrophotographic apparatus such as OA equipment. The shape of the attachment reference structure 5 is not limited to a hole, and any shape that can be positioned when attached to the electrophotographic apparatus may be used. For example, a protrusion, a dent, etc. are mentioned. The attachment hole 6 is used to fix the attachment reference structure 5 to the electrophotographic apparatus with screws or the like in a state where the attachment reference structure 5 is fitted to a pin formed in the electrophotographic apparatus. The attachment reference structure 5 and the attachment hole 6 are provided at predetermined positions of the elastic body joining surface 2 or the strength reinforcing surface 3 according to the design of the electrophotographic apparatus.
As the interval between the attachment reference structures 5 is wider, the positional accuracy when fitting with the pins of the electrophotographic apparatus is improved. Therefore, two attachment reference structures 5 are usually provided, one at a time near both ends. The number of attachment reference structures 5 may be two or more. It is preferable that one of the attachment reference structures 5 is a round hole and the remaining is a long hole having a long diameter parallel to the length direction of the blade support. By making the attachment reference structure 5 into a long hole, it is possible to absorb the variation within the dimensional tolerance and accurately align. The position and number of holes for mounting holes 6 are not particularly limited. In many cases, two attachment holes 6 are drilled in the vicinity of both ends, or three in total, one in both ends and the center. The shape of the attachment hole 6 is not particularly limited, but is usually a round hole.

The blade support 1 of the present invention has two or more processing reference structures 7 separately from the attachment reference structure 5.
As will be described later, the processing reference structure 7 includes a fitting structure 11 of the jig 10 when the blade support 1 and the elastic body 8 placed on the jig 10 are joined to form the blade 9. Used to fit and align. Even for blade supports having different shapes, the processing reference structure 7 is provided on the elastic body bonding surface 2 in order to share the jig 10. This is because when the strength reinforcing surface 3 is provided with the processing reference structure 7, the jig cannot be shared because the strength reinforcing surface 3 has a shape such as a bending angle and a width that is different for each electrophotographic apparatus. The position where the processing reference structure 7 is provided is not particularly limited as long as it is within the elastic joint surface 2, and as shown in FIG. 1 (b), outside the elastic joint portion 4 as shown in FIG. 1 (a). The inside of the elastic body joint 4 may be used. Since the positional accuracy when placed on the jig 10 increases as the distance between the processing reference structures 7 increases, it is preferably provided near both ends of the blade support 1. In FIGS. 1A and 1B, the processing reference structure 7 is formed on the inner side in the length direction than the attachment reference structure 5, but is formed on the outer side in the length direction than the attachment reference structure 5. Also good. Further, since stress is applied evenly when joining to the elastic body 8, and the deviation is unlikely to occur, the processing reference structure 7 is preferably formed at a position equidistant from the central portion in the length direction of the elastic body joining portion 4. .

The processing reference structure 7 only needs to be three-dimensionally formed, and examples thereof include three-dimensional shapes such as holes, concave portions, and convex portions. A part of the processing reference structure 7 may overlap the side of the blade support 1. For example, a cutout in which a part of the hole serving as the processing reference structure 7 overlaps the side of the blade support 1 may be used. The geometric shape is not particularly limited, and is cylindrical, conical, frustoconical, spherical, triangular pyramid, triangular prism, triangular pyramid, quadrangular pyramid, quadrangular prism, quadrangular pyramid, convex ridge , And the like. That is, the processing reference structure 7 of the present invention is defined by a combination of a solid shape and a geometric shape, and examples thereof include a cylindrical hole, a spherical concave portion, and a truncated pyramid-shaped convex portion. The blade support 1 has two or more processing reference structures 7, but each may have a different shape. If the three-dimensional shape of the processing reference structure 7 is a hole or a recess, the processing reference structure 7 can be used as it is without processing the electrophotographic apparatus side. If the three-dimensional shape of the processing reference structure 7 is a convex portion, a hole or a concave portion corresponding to the convex portion must be provided on the electrophotographic apparatus side. Can be increased.

When the three-dimensional shape of the processing reference structure 7 is a hole or a recess, it is preferable that the remaining processing reference structure has a shape extending in the length direction of the blade support 1 with respect to one processing reference structure. For example, one processing reference structure may be a circular hole or recess, and the remaining processing reference structure may be an oval hole or recess. By doing in this way, the dispersion | variation within a dimensional tolerance can be absorbed similarly to the said attachment reference | standard structure 5. FIG. Here, an ellipse is formed by connecting two semicircles with two parallel straight lines, and is different from an ellipse that is a set of points having the same sum of distances from two fixed points on a plane.

When the blade support 1 having the processing reference structure 7 as a hole is used as the blade 9, the toner may leak out through the hole and contaminate the electrophotographic apparatus. Therefore, when there is a possibility that the toner leaks, a means for closing the hole is taken. The means for closing the hole is not particularly limited. As shown in FIG. 2 (a), the hole can be closed with a sealing tape if the processing reference structure 7 is provided outside the elastic body joint 4. As the sealing tape, a film, tape, paper or the like coated with an adhesive or an adhesive can be used without any particular limitation. In addition to the seal tape, screws, rivets, sealing materials, and the like can be used. In addition, as shown in FIG. 2 (b), if the processing reference structure 7 is formed in the elastic body joint portion 4, the elastic body 8 can be joined and closed so as to cover the hole. If the blade 9 is attached to a location where the toner does not leak out or a location where there is no problem even if the toner passes through the hole, it is not necessary to close the hole serving as the processing reference structure 7.

The elastic body 8 is joined to the elastic body joint 4 of the blade support 1 to form a blade 9. The blade support 1 is joined in a state of being placed on the jig 10. FIG. 3 shows an example of the jig 10. The jig 10 is formed with a pin that is a fitting structure 11 that fits the processing reference structure 7 of the blade support. As shown in FIG. 4, the processing support structure 7 of the blade support 1 placed on the jig and the fitting structure 11 of the jig are fitted together so that the blade support is accurately aligned. The The fitting structure 11 is not limited to a pin as long as it has a shape that can fix the blade support when fitted to the processing reference structure 7. For example, if the three-dimensional shape of the processing reference structure 7 is a hole or a concave portion, the fitting structure 11 may be a convex portion such as a pin or a ridge. Moreover, if the three-dimensional shape of the process reference structure 7 is a convex part, the fitting structure 11 should just be concave parts, such as a hole and a groove. If the processing reference structure 7 is a hole formed inside the elastic body joint 4, the fitting is performed so that the top of the fitting structure 11 does not come into contact with the elastic body to prevent the joining when the elastic body 8 is joined. The height of the structure 11 needs to be less than or equal to the thickness of the blade support 1.

As described above, the processing reference structure 7 is provided in the vicinity of both ends of the blade support 1. The length of the blade support 1 is determined by the width of the roll, drum, belt, etc. with which the blade contacts. The widths of these rolls, drums, belts, and the like are determined by the size of the printing paper, and therefore the width of the blade support 1 is equal to the paper size such as for A3 or A4. Accordingly, the jig 10 is also prepared for the size of the paper, as for A3 and A4. On the other hand, conventionally, the mounting reference hole is also used as a position reference when joining the elastic body, and it is necessary to manufacture a jig with a different fitting structure position for each blade support having a different mounting reference hole position. there were.

It is preferable from the standpoint of alignment accuracy to prepare the jig 10 for the size of the paper, but even if it is a blade support for A3, a processing reference structure is provided at the same location as the blade support for A4. 7, the jig 10 used for manufacturing the A3 blade support and the A4 blade support can be shared. The paper size doubles as the number decreases by one. Since the A4 paper is 210 mm × 297 mm and the A3 paper is 297 mm × 420 mm, the side length is about 1.414 times, which is the square root of 2, as the number decreases by 1. The processing reference structure 7 is provided near both ends of the A4 blade support, and the A3 blade support and the A3 blade are provided on the A3 blade support at the same interval as the A4 blade support. The jig 10 used for manufacturing the support can be shared.

When joining the blade support 1 to both sides of the sheet S1 described later, a jig 10 is used that can place the two blade supports 1 so that the elastic joints 4 face each other. The jig 10 is provided with a blade receiving section 12 at the center in the width direction. FIG. 5 shows a jig 10 on which two blade supports can be placed and has a blade receiving space 12 at the center in the width direction. The blade receiving space 12 is a space through which the cutting blade passes when the sheet is cut in the width direction on the jig 10. Since the jig 10 has the blade receiving space 12, the sheet can be reliably cut on the jig 10, and the cut surface is finished linearly. The elastic body 8 cut on the jig 10 has a cut surface that is linearly finished and can be joined to the blade support 1 as it is without the need for re-trimming to form the blade 9. Trimming for width dimensioning and ridgeline is unnecessary, which improves quality, improves yield, and reduces waste. Further, since the trimming step can be omitted, the manufacturing cost is reduced.

The elastic body 8 is joined to the elastic body joint 4 of the blade support 1 to form a blade 9. As the material of the elastic body 8, a thermosetting polyurethane, in particular, a non-solvent two-component thermosetting polyurethane is suitable. The elastic body 8 may be an elastic body formed from a uniform resin composition throughout, or may be a multilayer elastic body formed by using different resin compositions for the edge layer 13 and the base layer 14. As the multi-layer elastic body, either a full-surface multi-layer elastic body in which the edge layer 13 is provided over the entire surface, or a partial multi-layer elastic body in which the edge layer 13 is provided only in a portion in contact with the drum or the like can be used. FIG. 6A shows a cross-sectional view of a blade using the entire multilayer elastic body, and FIG. 6B shows a cross-sectional view of the blade using the partial multilayer elastic body. The elastic body 8 can also be formed with a rough surface corresponding to the fine toner.

The molding method of the elastic body 8 is not particularly limited, and either a centrifugal molding method or a continuous molding method can be used. In the continuous molding method, the time from when the resin composition is cast into the molding groove of the molding drum to when it is taken out as a belt is about 30 to 60 seconds when the molding drum rotates about half a half. When the elastic body 8 made of thermosetting polyurethane is continuously molded, the isocyanate, polyol, crosslinking agent, and catalyst are selected so that they can be polymerized and solidified so that they can be peeled off from the molding drum in about 30 to 60 seconds. Design the composition of water-soluble polyurethane.

The following can be used as a component of a thermosetting polyurethane.
High molecular weight polyols include polyoxyalkylene glycols such as polyethylene glycol, polypropylene glycol and polyoxytetramethylene glycol, or polyether-type polyols of bisphenol A, alkylene oxide adducts such as ethylene oxide and propylene oxide of glycerin, and A dipic acid such as adipic acid, phthalic anhydride, isophthalic acid, maleic acid and fumaric acid, and glycols such as ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol and trimethylolpropane Examples thereof include polyester type polyols obtained by polymerization reaction, polycaprolactone diol, polycarbonate diol and the like.

Diisocyanate compounds include metaxylene diisocyanate (XDI), tolylene diisocyanate (TDI), 4,4-diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 1,4-cyclohexane diisocyanate, and the like. Can be mentioned. Examples of the chain extender include low molecular weight diols such as ethylene glycol, 1,4-butanediol, diethylene glycol, 1,6-hexanediol, and neopentyl glycol, and diamines such as ethylenediamine, hexamethylenediamine, and isophoronediamine. Desirably, a low molecular weight diol is used. Furthermore, you may add a trimethylol propane, a triethanolamine, glycerol, and these ethylene oxide and a propylene oxide adduct as a polyfunctional component as needed.

In the production of the above polyurethane, the equivalent ratio of OH group / NCO group is preferably 0.8 to 1.05, preferably 0.90 to 1.05 in view of the physical properties of the resulting polyurethane. Moreover, reaction accelerators, such as a general amine compound and an organic tin type compound, are used as needed. Examples thereof include imidazole derivatives disclosed in Japanese Patent No. 2942183 and paragraphs 0022 to 0023. Specific examples thereof include 2-methylimidazole and 1,2-dimethylimidazole which are highly dependent on reaction temperature in terms of chemical structure.

The reaction accelerator is used in the range of 0.001 to 0.5 parts by weight, preferably 0.01 to 0.3 parts by weight, with respect to 100 parts by weight of the urethane prepolymer. As the reaction accelerator, those having temperature sensitivity or slow-acting property prevent the urethane resin composition mixed with the reaction accelerator from being cured before molding, can extend the pot life, and the demolding time. Is preferable because of shortening. Specifically, 1,8-diazabicyclo (5,4,0) undecene-7-organic acid salt, 1,5-diazabicyclo (4,3,0) nonene-5-organic acid salt called block amine Or a mixture thereof.

A commercially available product can be used for the two-component mixing and casting machine used for mixing and stirring the liquid material containing the urethane prepolymer and the liquid material containing the crosslinking agent. In addition, the metering pump preferably uses a triple or more plunger type in consideration of its quantitative accuracy, but a gear pump type can also be used. In particular, in the continuous molding method, it is preferable to use a resin composition that is a fast-curing formulation that cures to such a degree that it can be peeled off in about 30 to 60 seconds. Therefore, the stirring and mixing chamber prevents residence in the mixing chamber and reacts. In order to suppress the temperature rise due to heat, a small capacity type as disclosed in Japanese Patent Publication No. 6-11389 is preferable.

Although the two-component thermosetting polyurethane resin having a rapid curing formulation used in the continuous molding method is illustrated in detail, the resin for the elastic body that can be used in the present invention is not limited to this, but is a thermoplastic resin, Any of curable resins can be used. An ultraviolet curable resin can also be used. Furthermore, the resin composition may contain a solvent. When a solvent is included in the resin composition, a resin composition having a too high viscosity or a resin composition that is solid under production conditions can be used, and the degree of design freedom is increased. However, if a solvent is included, the heat of vaporization is lost when the solvent evaporates and the temperature decreases, so a thermosetting resin that cures the resin in the molding groove of the heated molding drum was used. In the continuous molding method, a non-solvent type containing no solvent is preferable in order to keep the inside of the molding groove at a high temperature.

In the continuous molding method, the width of the belt that is continuously formed into a wide band is set to be approximately an integral multiple of the width of the elastic body. For example, a double-width belt can be cut in the length direction to form a sheet, and then divided into two at the center in the width direction to be used as the elastic body 8 as it is. The belt provided by the continuous molding method is not limited to cutting at the center of the width. For example, a belt having a width of 30 mm can be divided into a width of 10 mm and a width of 20 mm. Moreover, it is not restricted to 2 division | segmentation, It can also divide | segment into 3 or more.

FIG. 7 shows an example of a continuous manufacturing method of the blade 9 using the blade support 1 of the present invention by the continuous molding method.
An example of this continuous manufacturing method is
1. A step of continuously forming a belt B using a forming drum in which a forming groove having a width corresponding to two elastic bodies is formed on the outer periphery;
2. A fixed length cutting process in which the belt B is cut into a predetermined length to form a fixed length sheet S1;
3. The two blade supports 1 mounted on the jig 10 are joined to both sides of the sheet S1 in a state where the fitting structure 11 of the jig 10 and the processing reference structure 7 of the blade support 1 are fitted. And a support joining process to make the sheet S2 with both sides support,
4). A fixed width cutting step for obtaining two blades 9 by cutting the sheet S2 with both side supports at the width center;
At least.

In addition to the above steps, productivity can be improved several times by using a production line in which processes such as length adjustment, inspection, packing, and shipping are continued as necessary.
Moreover, it is not limited to the said continuous manufacturing method, It manufactures in order of a fixed length cutting process, a fixed width cutting process, a support body joining process, a fixed width cutting process, a fixed length cutting process, and a support body joining process. May be. Further, the belt width is not limited to the width of two elastic bodies, and may be a width of three or more.

The continuous manufacturing method of the blade 9 using the centrifugal molding method is as follows:
1. Forming a cylindrical sheet by centrifugal molding,
2. Cutting out a sheet having a width corresponding to two elastic bodies from the cylindrical sheet;
3. Two blade supports 1 mounted on the jig 10 are joined to both sides of the sheet in a state where the fitting structure 11 of the jig 10 and the processing reference structure 7 of the blade support 1 are fitted. And a support joining process to make the sheet S2 with both sides support,
4). A fixed-width cutting step for obtaining two blades 9 by cutting the sheet S2 with both side support members at the width center;
At least in this order.
In addition to the above steps, processes such as length adjustment, inspection, packing, and shipping are added as necessary.

FIG. 8 shows an arrangement example of the continuous manufacturing apparatus for blades.
An example of the continuous manufacturing apparatus for the blade includes at least a forming device 20, a fixed length cutting device 30, a support joining device 40, a fixed width cutting device 50, and a support placing device 60. Moreover, the jig | tool 10 circulates in this order among the support body joining apparatus 40, the fixed size cutting apparatus 50, and the support body mounting apparatus 60.
In this arrangement example, the forming device 20, the fixed length cutting device 30, the support joining device 40, and the fixed width cutting device 50 are arranged in this order. The length cutting device 30, the fixed width cutting device 50, and the support joining device 40 can be used in this order, and the molding device 20, the fixed width cutting device 50, the fixed length cutting device 30, and the support joining device 40 can be used in this order. . In the device example in which the fixed width cutting device 50 is disposed before the support body joining device 40, the jig 10 circulates between the support body joining device 40 and the support body placing device 60.

Although the structure of each apparatus which comprises a continuous manufacturing apparatus is explained in full detail below, the structure of each apparatus used in this invention is not limited to this.
The molding device 20 includes a discharge port 21 for supplying resin, an external heating device 22, a molding drum 23, an endless belt 24, and the like.
The discharge port 21 for supplying the resin continuously supplies the resin composition in which the components to be used are uniformly mixed to the forming groove provided on the outer peripheral surface of the forming drum 23 with a constant discharge amount. The molding groove is heated by an internal heating device provided inside the molding drum 23, and the resin supplied to the molding groove starts a thermosetting reaction immediately after casting into the molding groove.

The external heating device 22 provided as necessary fulfills the function of heating the resin composition cast from the discharge port 21 into the molding groove. This heating promotes thermosetting on the surface side of the resin composition. The cast resin composition undergoes a thermosetting reaction by the heat from the internal heating device and the heat from the external heating device 22, the viscosity increases, and flows into the contact point between the molding drum 23 and the endless belt 24. Is suppressed. As the external heating device 22, far-infrared rays, laser light, ultraviolet rays, induction heating, etc., which are non-contact types, can be used. The heating temperature is adjusted by the reactivity and viscosity of the resin, the production speed, the thickness of the belt B to be produced, and the like. The heating condition of the resin composition can be controlled by the output and the distance to the molding groove. When a resin composition to which a photopolymerization initiator is added is used, it can be cured by irradiating with ultraviolet rays or the like. The installation position of the external heating device 22 can be adjusted between the discharge port 21 and the preheating roll 25 according to the reactivity of the resin composition and the thickness of the belt B to be manufactured. In this example, it is installed near the top of the forming drum 23.

By heating with the external heating device 22, the viscosity of the resin composition can be quickly increased and the fluidity can be lowered, so that the belt B to be manufactured can be thickened. Alternatively, the molding speed can be increased. In addition, when the belt B having a multilayer structure is molded, since the initial curing of the resin composition cast in advance proceeds, the mixing with the resin composition subsequently cast is prevented. Can do.

The metal endless belt 24 covers the molding groove of the molding drum 23 to form a space filled with the liquid resin composition together with the molding groove. That is, the molding groove and the endless belt 24 have a function as a mold for curing the resin composition. The endless belt 24 covers almost half of the outer periphery of the forming drum 23, and includes a preheating roll 25 for preheating the endless belt 24, a guide roll 26 for adjusting belt running, a tension roll 27 for applying tension, and an endless belt 24. It is stretched around a cooling roll 28 to be cooled, and rotates following the rotation of the forming drum 23. Further, the endless belt 24 is heated by the preheating roll 25, and the temperature of the resin composition is prevented from being lowered upon contact with the endless belt 24.

A molding cavity is formed by the molding groove having a function as a mold and the endless belt 24. The resin composition is filled in the cavity, and the curing reaction proceeds in a state where the outer shape of the belt B is adjusted. The section where the endless belt 24 covers the molding groove of the molding drum 23 may be more than the section necessary for curing until the resin composition can be peeled from the endless belt 24.
Immediately before peeling, a cooling device 29 for cooling by blowing cold air or the like from the outside of the endless belt 24 is installed as necessary. The peeled belt B is conveyed to the fixed length cutting device 30. A conveyance device such as a conveyor can be used for the conveyance.

The fixed length cutting device 30 is a device that cuts the belt B into a predetermined length. By this fixed length cutting device 30, the belt B is cut into a fixed length and becomes a sheet S1. In order to synchronize with the operation of the fixed length cutting device 30, a feed roll 31 that controls the feeding is disposed immediately before the fixed length cutting device 30. A space for allowing the tape to sag is provided in front of the feed roll 31, and the speed at which the belt is continuously conveyed and the timing of cutting by an intermittent fixed length cutting device are adjusted. The sheet S1 is conveyed to the support bonding apparatus 40 by a known means such as a suction holding apparatus.

As shown in FIG. 9, the support bonding apparatus 40 in this apparatus example joins two blade supports 1 on both sides of a sheet S1 on a jig 10, and forms a sheet S2 with both side supports. It is a device to do.
The two blade supports 1 are transported from the support mounting device 60 described later to the support bonding device 40 in a state where the blade support 1 is mounted on the jig 10 so that the elastic bonding portions face each other. A thermosetting adhesive is applied to the elastic body joints 4 of the two blade supports 1. The sheet S <b> 1 is gripped by an adsorption holding device or the like and is disposed on the elastic body joint 4 of the two blade supports 1. Thereafter, the blade support 1 and the sheet S1 are joined by heat-curing the thermosetting adhesive by a heating means to form the sheet S2 with both-side support. The heating means is not particularly limited, and an ultrasonic welder, a far infrared irradiation device, a laser light irradiation device, or the like can be used.
The sheet S2 with both-side support members is conveyed to the fixed width cutting device 50 by a conveyor or the like while being placed on the jig 10.

The fixed width cutting device 50 in this device example cuts the sheet S2 with both side support members at the width center portion to form two blades 9. As shown in FIG. 10, the sheet S <b> 2 with both side support members is cut at the center of the width while being placed on the jig 10.
The jig 10 also serves as a lower pressing member when cutting in the width direction. The fixed width cutting device 50 is provided with an upper pressing member provided with a cutting blade capable of moving in the longitudinal direction at an intermediate portion so as to be movable up and down. At the time of cutting, the upper pressing member is lowered, and the sheet S2 with both side support members is sandwiched and fixed together with the jig 10 which is the lower pressing member. Since the sheet S2 with both side support members is accurately and linearly cut in a fixed state, it can be used as it is as the blade 9 without trimming the cut surface. The manufactured blade 9 is shipped as a product after subsequent processes such as inspection and packing.

The jig 10 is transported to the support placing device 60 after the blade 9 is removed. As shown in FIG. 11, in the support mounting device 60, the two blade supports 1 are mounted on the jig 10 so that the elastic body joint portions face each other. At this time, the fitting structure 11 of the jig 10 and the processing reference structure 7 of the blade support 1 are fitted, and the blade support 1 is accurately aligned. Thereafter, the blade support 1 is transported together with the jig 10 to the support bonding apparatus 40 by a conveyor or the like.

As described above, the jig 10 circulates in this order among the support joining device 40, the fixed width cutting device 50, and the support placing device 60 in the continuous manufacturing apparatus.
By combining the blade support 1 having the processing reference structure 7 of the present invention and the jig 10 having the fitting structure 11 with a continuous manufacturing apparatus, various types of blades having different shapes of the blade support 1 can be cured. The tool 10 can be continuously manufactured without replacement.
That is, in the blade support 1 of the present invention, the positions where the processing reference structures 7 are provided are unified even if the shapes thereof are different, and the jig 10 fitted to the processing reference structures 7 is shared. Therefore, various types of blades having different shapes of the blade support 1 can be continuously manufactured without replacing the jig 10. For this reason, the continuous production apparatus of the present invention is suitable for high-mix low-volume production.

Claims

A blade support characterized in that two or more machining reference structures and two or more attachment reference structures are formed.
The blade support according to claim 1, wherein the three-dimensional shape of the processing reference structure is any one of a hole, a concave portion, and a convex portion, or a combination thereof.
The blade support according to claim 1 or 2, wherein one of the processing reference structures is a circular hole or recess, and the rest is an oval hole or recess.
A blade formed by joining an elastic body to the blade support according to any one of claims 1 to 3.
The blade according to claim 4, wherein the elastic body is a multilayer elastic body.
The blade according to claim 4 or 5, wherein the processing reference structure of the blade support is a hole, and the hole is closed.
The blade according to claim 6, wherein the hole is closed by a sealing tape, a screw, a rivet, a sealant, or an elastic body joined so as to cover the hole.
A set of a blade support and a jig, comprising: the blade support according to any one of claims 1 to 3; and a jig having a fitting structure that fits the processing reference structure of the blade support.
9. The jig according to claim 8, wherein the two blade supports can be placed so that the elastic joint portions are opposed to each other, and a blade receiving space is provided between the opposed portions. Set described in.
Using the set according to claim 8 or 9, the blade support body in a state in which the processing reference structure of the blade support body and the fitting structure of the jig are placed and aligned with each other. A bonding method comprising bonding an elastic body to an elastic body.
A step of continuously forming a belt using a forming drum in which forming grooves each having a width corresponding to two elastic bodies are formed;
A fixed length cutting step of cutting the belt into a predetermined length to form a sheet;
Two blade supports placed on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted to each other. A support joining process to form a sheet with a sheet,
A fixed width cutting step of cutting the sheet with both side support members at the width center to obtain two blades;
The blades are continuously manufactured in this order.
Forming a cylindrical sheet by centrifugal molding,
Cutting out a sheet having a width corresponding to two elastic bodies from the cylindrical sheet;
Two blade supports placed on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted to each other. A support joining process to form a sheet with a sheet,
A fixed width cutting step of cutting the sheet with both side support members at the width center to obtain two blades;
The blades are continuously manufactured in this order.
A molding apparatus for molding a belt having a width corresponding to two elastic bodies using a molding drum having a molding groove on the outer periphery;
A fixed length cutting device that cuts the belt into a predetermined length to form a sheet,
Two blade supports mounted on the jig are joined to both sides of the sheet so that the fitting structure of the jig and the processing reference structure of the blade support are fitted, and both sides are supported. A joining device for a body-attached sheet,
A fixed width cutting device for cutting the sheet with the support on both sides at the center of the width;
A support mounting device for mounting a blade support on a jig;
A continuous manufacturing apparatus for blades comprising at least
An electrophotographic apparatus comprising the blade according to any one of claims 4 to 7.