JP4678150B2 - Rubber roll manufacturing apparatus, manufacturing system, and rubber roll manufacturing method - Google Patents

Description

The present invention is primarily manufacturing apparatus rubber roll used in electrophotographic copying machines, manufacturing systems, and rubber roll process for the preparation of.

Conventionally, as shown in FIG. 12, is attached a mold 10P for manufacturing a rubber roll to mold 11P, to insert the cylindrical core 12P in the mold 10P, the outer circumference of the inner circumferential core 12P mold 10P after injecting the silicone rubber material between, by installing the formwork 11P into the heating furnace (not shown) within, by a mold 10P attached to the formwork 11P heated hot air, the mold 10P method for producing a rubber roll to form a rubber layer is provided on the outer periphery of the injected silicone rubber material is cured by core 12P within.
After the curing of the silicone rubber material has been completed, are taken out mold 11P from the heating furnace, a mold 10P is cooled, to produce a rubber roll with Ri remove preparative mold 10P from the mold 11P is a general It was.

Further, as shown in FIG. 13, by attaching a halogen heater 21P in a core 23P inserted into a mold 20P for manufacturing a rubber roll and heating from the inside of the core 23P , the mold 20P is heated. A method for producing a rubber roll for curing the injected silicone rubber raw material is also provided (see Patent Document 1).
Further, the mold temperature at the time of temperature rise to continue to heat the mold from the low temperature split into several stages, row stomach feedback control based on the temperature measurement result, always continuous fixed by heating and power adjustment A method of manufacturing a rubber roller that is molded while maintaining a typical temperature rise history is also provided (see Patent Document 2).

JP 2000-337352 A (page 3-6, FIG. 1) JP 2003-039450 A (Claim 1)

However , since the conventional manufacturing method shown in FIG. 12 requires the mold 11P and the heating furnace, there is a problem that it takes time to attach and remove the mold 10P to the mold 11P.
In addition, because of the atmospheric heating method in which the mold 10P is heated via air, it takes about 60 minutes to raise the temperature of the mold 10P, about 30 minutes to cool, and about 90 minutes in total. And in order to shorten a tact by a manufacturing method with a long molding cycle, many molds are required. Therefore, there is a problem that the manufacturing apparatus becomes large and the manufacturing cost of the rubber roll becomes high.

On the other hand, in the other conventional manufacturing method shown in FIG. 13, although the heating time is shortened, since the electric wire 22P is connected to both sides of the halogen heater 21P, when the core 23P is inserted or extracted, There is a problem that it is necessary to remove one of the electric wires 22P of the heater 21P, and it takes a lot of labor to insert / extract the core 23P.
In addition, halogen heater 21P is because it is made of glass, Improper handling of the halogen heater 21P in the work of the withdrawal insertion and of core 23P, there is also a problem that Ru broken immediately.

As a means for the present invention is to solve the conventional problems described above, a sleeve 3, a cylindrical core 4 that is inserted into the sleeve 3, the electric heat pipe heater 6 to be inserted into the interior of the cylindrical core 4 It consists, in the manufacturing apparatus of the rubber roll 1 rubber layer molding space S is formed between the inner periphery of the outer peripheral and the sleeve 3 of the cylindrical core 4, and the cylindrical core 4 the electric heat pipe heater 6 In the meantime, the rubber roll manufacturing apparatus 2 provided with a center shaft 5 inserted into the cylindrical core 4 and into which the electrothermal pipe heater 6 is inserted is provided.
The rubber roll 1 manufacturing apparatus 2 and a cooling cylinder 21 through which cooling water is inserted into the outer peripheral wall, and the rubber roll 1 manufacturing apparatus 2 is inserted into the cooling cylinder 21 in the cooling step. desirable.

Furthermore, the present invention comprises a heating stage H, a cooling stage C, and a transport path 40 connecting the heating stage H and the cooling stage C. In the heating stage H, the rubber layer molding space S of the manufacturing apparatus 2 is liquid. A heating and curing process is performed in which a rubber material is injected and the liquid rubber material is heated and cured by the electric heating pipe heater 6, and then the manufacturing apparatus 2 moves along the conveyance path 40 and is conveyed to the cooling stage C. In addition, a rubber roll manufacturing system is provided in which a cooling process is performed in which the manufacturing apparatus 2 is inserted into the cooling cylinder 21 and cooled in the cooling stage C. It is desirable to arrange a plurality of heating stages H for one cooling stage C. Usually, the conveyance path 40 is composed of a guide rail, and the manufacturing apparatus 2 is placed on the carriage 30 that slides on the guide rail 40 and is conveyed.

  Furthermore, in the present invention, using the manufacturing apparatuses 2A, 2B, 2C, a liquid rubber raw material is injected into the rubber layer molding space S formed between the outer periphery of the core 4 and the inner periphery of the sleeve 3, A method of manufacturing the rubber roll 1 is provided in which the liquid rubber raw material is cured by the electrothermal pipe heater 6 to form a rubber layer around the core 4. After the liquid rubber material is heated and cured, it is desirable to cool the manufacturing apparatus 2 by inserting it into a cooling cylinder 21 in which cooling water is inserted into the outer peripheral wall.

Furthermore, in the present invention, the manufacturing system is prepared , the manufacturing apparatuses 2A, 2B, and 2C are used, and the rubber layer molding formed between the outer periphery of the core 4 and the inner periphery of the sleeve 3 in the heating stage H. A liquid rubber raw material is injected into the space S, and a heating and curing process is performed in which the liquid rubber raw material is heated and cured by the electrothermal pipe heater 6 to form a rubber layer around the core 4. A rubber roll manufacturing method is provided in which a cooling process is performed in which the manufacturing apparatus 2 is inserted into the cooling cylinder 21 and cooled in the cooling stage C by being moved along the transfer path 40 and transferred to the cooling stage C. In the case where a plurality of heating stages H are arranged for one cooling stage C, the manufacturing apparatus 2A, 2B, 2C is used, and the first manufacturing in which the liquid rubber raw material is injected in the first heating stage H1. The apparatus 2 is subjected to a heat curing step, and the second heating stage H2 is subjected to the heat curing step with respect to the second manufacturing apparatus 2 in which the liquid rubber material is injected with a predetermined time difference ΔT from the first heating stage H1. After the heat curing process in the first heating stage H1, the first manufacturing apparatus 2 is moved along the transport path and transported to the cooling stage to perform the cooling process. After the cooling process, the manufacturing apparatus 2 Is moved along the conveying path 40 and conveyed to the first heating stage H1 to take out the rubber roll 1 manufactured from the manufacturing apparatus 2 and to heat the second heating stage H2. After completion of the conversion, the second manufacturing apparatus 2 is moved along the transport path 40 and transported to the cooling stage C to perform the cooling process. Thereafter, a plurality of heating stages H are provided with a predetermined time difference ΔT. It is desirable that the individual manufacturing apparatuses 2A, 2B, and 2C are sequentially heated and cured, and the cooling process is performed in the cooling stage C.

In the present invention, since the electrothermal pipe heater 6 is used, there is no trouble of attaching and detaching the sleeve 3 to the mold, and a heating furnace is not required. Further, since the heating is directly performed from the inside of the core 4 inserted into the sleeve 3 by the electrothermal pipe heater 6, the time for the heat curing process of the liquid rubber raw material can be greatly shortened, and therefore the scale of the manufacturing apparatus 2 is small. This can reduce the manufacturing cost. Furthermore, when the cooling cylinder 21 is used, the time for the cooling process of the manufacturing apparatus 2 can be greatly shortened.
Furthermore , since the electrothermal pipe heater 6 is connected at one end, the operation of inserting and extracting from the core 4 becomes very easy. Further , since the electrothermal pipe heater 6 is made of metal, it has a high mechanical strength and is not easily damaged during the insertion / extraction operation into the core 4. When the heat curing process is performed at the heating stage H and the cooling process is performed at the cooling stage C, particularly when a plurality of heating stages H are arranged for one cooling stage C, the heat curing at the heating stage H is performed. Since the process and the cooling process in the cooling stage C can be performed sequentially and continuously, the production efficiency of the rubber roll 1 is greatly improved.

Hereinafter , the present invention will be described in detail with reference to Examples 1 to 4.

A first embodiment is shown in FIGS.
As shown in FIGS. 1 to 3, the manufacturing apparatus 2A of the rubber roll 1A includes a cylindrical sleeve 3A, a cylindrical core 4A that is inserted into the sleeve 3A, the center shaft 5A that is inserted into the cylindrical core 4A And an electrically heated pipe heater 6A inserted into the center shaft 5A, and a rubber layer forming space S is formed between the outer periphery of the cylindrical core 4A and the inner periphery of the sleeve 3A.

At the top of the sleeves 3A, upper cap 8A is attached to the air vent 7A is provided. A bottom cap 10A provided with a flow path 9A for the liquid rubber material is attached to the lower portion of the sleeve 3A . Further , a gate cap 12A provided with a liquid rubber raw material injection passage 11A communicating with the flow passage 9A of the bottom cap 10A is attached to the lower portion of the bottom cap 10A.

The gate Tokyappu 12A, a cylindrical shutter pin 13A so as to cross through the injection path 11A is mounted slidably, in a location corresponding to the injection passage 11A of the shutter pin 13A, the flow of the liquid rubber material A hole 14A is provided.

The upper part of the Center shaft 5A and threaded portion 15A is provided at a lower portion of the center shaft 5A locking portion 16A is provided. A nut 17A is screwed onto the threaded portion 15A of the center shaft 5A, and a coil spring for adjusting the clamping pressure of the sleeve 3A is provided between the lower surface of the nut 17A and the upper surface of the upper cap 8A of the sleeve 3A. 18A is attached.

Heating wire to electrically heated pipe heater in 6A (not shown) is inserted, the wire 19A are connected at the upper end of the electric heat pipe heater 6A to heating wire. Further, the electrothermal pipe heaters 6A, thermocouple 20A for measuring the temperature of the electrothermal pipe heaters 6A is kicked INSTALLATION.

As shown in FIGS. 4 and 5, the cooling cylinder 21A for cooling the sleeve 3A is a split cylindrical shape, and is kicked Mounting fitted around the outside of the sleeve 3A. The inside peripheral wall of the cooling tube 21A and the cooling water passage 22A is provided, the temperature of the coolant that is passed through feed to the cooling water passage 22A is set to about 10 ° C..

As a material of the cylindrical core 4A, for example, aluminum, iron, copper, stainless steel, or other metals or alloys are used.

As the liquid rubber material, urethane rubber or the like is used for example in liquid silicone rubber and casting type.

When the rubber roll 1A is manufactured using the manufacturing apparatus 2A, first, a primer treatment for forming an adhesive layer on the surface of the cylindrical core 4A is performed, and then the cylindrical core 4A is placed in the sleeve 3A. insert. Next, the shutter pin 13A of the gate cap 12A is slid to align the flow hole 14A of the shutter pin 13A and the injection path 11A of the gate cap 12A, and the flow from the injection path 11A of the gate cap 12A to the bottom cap 10A. A liquid rubber material is injected into the rubber layer forming space S between the outer periphery of the cylindrical core 4A and the inner periphery of the sleeve 3A via the path 9A.
Then, when the injection of the liquid rubber material is completed, it is slid the shutter pin 13A, shifting the position of the injection path 11A through channel 14A and the gate cap 12A of the shutter pin 13A, to stop the injection of the liquid rubber material.

Then, by energizing the cylindrical core 4A electrothermal pipe heaters 6A inserted into the center shaft 5A within, cured by heating the liquid rubber material to form the rubber layer 23A.
In this case, the thermocouple 20A attached to electric heat pipe heater 6A, the temperature of the electrothermal pipe heater 6A is measured to adjust the heating temperature of the liquid rubber material.

After the liquid rubber material is cured by heating to form a rubber layer 23A, with withdrawn or inserted with electrothermal pipe heater 6A in the center shaft 5A or, alternatively and if desired, the electrothermal pipe heater 6A from the center shaft 5A mounting fitted around the cooling cylinder 21A to the outside of the sleeve 3A, through feeding cooling water into the cooling water passage 22A of the cooling tube 21A, to cool the sleeve 3A.
In this way, the manufacture of the rubber roll 1A in which the rubber layer 23A is formed on the outer periphery of the cylindrical core 4A is completed (see FIG. 6).

As described above, by manufacturing the rubber roll 1A using the electrothermal pipe heater 6A, there is no need to attach and detach the sleeve 3A to the mold, and a heating furnace is not necessary. Further, since heating is directly performed from the inside of the sleeve 3A by the electrothermal pipe heater 6A, the heating time of the sleeve 3A can be greatly shortened, so that the scale of the manufacturing apparatus 2A can be small and the manufacturing cost can be reduced. I can do it. Furthermore, when the cooling cylinder 21A is used, the cooling time of the sleeve 3A can be greatly shortened. For example, in the present embodiment, the rubber roll 1A can be manufactured in a short time of about 10 minutes for raising the temperature of the sleeve 3A, about 10 minutes for cooling, and a total of 20 minutes.

Furthermore , since the heating wire in the electric heating pipe heater 6A is connected at one end of the electric heating pipe heater 6A, the operation of inserting / extracting the cylindrical core 4A becomes very easy. Further, electric heat pipe heater 6A are the metallic, strong mechanical strength, the hard damaged during insertion and withdrawal of the working of the cylindrical core 4A.

A second embodiment is shown in FIGS.
In this embodiment, the manufacturing apparatus 2B rubber rolls 1B includes a cylindrical sleeve 3B, a cylindrical core 4B which is inserted into the sleeve 3B, a center shaft 5B to be inserted into a cylindrical core 4B, the center shaft 5B A rubber layer forming space S is formed between the outer periphery of the cylindrical core 4B and the inner periphery of the sleeve 3B.

As shown in FIG. 7, an upper cap 8B provided with an air vent (not shown) is attached to the upper portion of the sleeve 3B . A bottom cap 10B provided with a liquid rubber raw material injection path 11B is attached to the lower portion of the sleeve 3B . Further, on the outer peripheral surface of the sleeve 3B, thermocouple 20B for measuring the temperature of the sleeve 3B is kicked INSTALLATION.

A prismatic shutter pin 13B is slidably attached to the outer portion offset from the center of the bottom cap 10B so as to cross the injection path 11B . A flow hole 14B for a liquid rubber material is provided at a location corresponding to the injection path 11B of the shutter pin 13B.

The top of the Center shaft 5B, the screw portion 15B is provided. A locking portion 16B is provided at the lower portion of the center shaft 5B . A nut 17B for clamping the sleeve 3B is screwed to the threaded portion 15B of the center shaft 5B.

A heating wire (not shown) is inserted into the electric heating pipe heater 6B, and an electric wire 19B is connected to the heating wire at the upper end of the heating pipe heater 6B.

As shown in FIG. 8, the cooling tube 21B for cooling the sleeve 3B is a split cylindrical shape, and is kicked Mounting fitted around the outside of the sleeve 3B, the upper cap 8B and bottom cap 10B . A cooling water passage (not shown) is provided in the outer peripheral wall of the cooling cylinder 21B, and the temperature of the cooling water sent to the cooling water passage is set to about 10 ° C.

As the material of the cylindrical core 4B, as in the first embodiment, for example, aluminum, iron, copper, stainless steel, or other metals or alloys are used.

As the liquid rubber material, as in Example 1, for example, liquid silicone rubber and casting type of urethane rubber or the like is used.

When the rubber roll 1B is manufactured using the manufacturing apparatus 2B, first, a primer treatment for forming an adhesive layer on the surface of the cylindrical core 4B is performed , and a release layer is formed on the inner peripheral surface of the sleeve 3B. After forming 24B, the cylindrical core 4B is inserted into the sleeve 3B . Examples of the material of the release layer 24B include tetrafluoroethylene / perfluoroalkoxyethylene copolymer resin (PFA resin), tetrafluoroethylene / ethylene copolymer resin (ETFE resin), and vinylidene fluoride copolymer resin (PVDF resin). ), Tetrafluoroethylene / hexafluoropropylene copolymer resin (FEP resin) and the like are used.

Then, by sliding the shutter pin 13B of the gate cap 12B, align the injection passage 11B through channel 14B and the bottom cap 10B of the shutter pin 13B, the injection passage 11B of the bottom cap 10B of the cylindrical core 4B periphery A liquid rubber material is injected into a rubber layer molding space S between the sleeve 3B and the release layer 24B on the inner peripheral surface of the sleeve 3B. When the injection of the liquid rubber material is completed , the shutter pin 13B is slid to shift the position of the flow hole 14B of the shutter pin 13B and the injection path 11B of the bottom cap 10B, and the injection of the liquid rubber material is stopped.

Then, by energizing the cylindrical core 4B electrothermal pipe heater 6B inserted in the center shaft 5B in the, cured by heating the liquid rubber material to form the rubber layer 23B. At this time, by a thermocouple 20B attached to the sleeve 3B, it measures the temperature of the sleeve 3B, to adjust the heating temperature of the liquid rubber material.

After the liquid rubber raw material is heated and cured to form the rubber layer 23B, the cooling cylinder 21B is placed outside the sleeve 3B, the upper cap 8B, and the bottom cap 10B with the electrothermal pipe heater 6B inserted into the center shaft 5B. mounted fitted, through sending cooling water to the cooling water passage of the cooling tube 21B, to cool the sleeve 3B. In this way, the production of the rubber roll 1B in which the rubber layer 23B is formed on the outer periphery of the cylindrical core 4B and the release layer 24B is formed on the outer periphery of the rubber layer is completed.

As described above, manufacturing the rubber roll 1B using the electrothermal pipe heater 6B eliminates the trouble of attaching and detaching the sleeve 3B to and from the mold as in the first embodiment, and eliminates the need for a heating furnace. Further, since the heating is directly performed from the inside of the sleeve 3B by the electrothermal pipe heater 6B, the heating time of the sleeve 3B can be greatly shortened, so that the scale of the manufacturing apparatus 2B can be small and the manufacturing cost can be reduced. I can do it. Furthermore, when the cooling cylinder 21B is used, the cooling time of the sleeve 3B can be greatly shortened. For example, in this embodiment, the rubber roll 1B can be manufactured in a short time of about 10 minutes for the temperature rise of the sleeve 3B, about 10 minutes for cooling, and a total of 20 minutes.

Further, in this embodiment, the heating wire in the electrically heated pipe heater. 6B, since the connection at one end of the electrically heated pipe heater 6B, insertion and withdrawal of the working of the cylindrical core 4B becomes very easy. Further , since the electrothermal pipe heater 6B is made of metal, it has high mechanical strength and is not easily damaged during the insertion / extraction operation of the cylindrical core 4B.

FIG. 9 shows a third embodiment.
In the second embodiment shown in FIG. 7, the center shaft 5B is inserted into the cylindrical core 4B, and the electrothermal pipe heater 6B is inserted into the center shaft 5B. in an embodiment, the manufacturing apparatus 2C of the rubber roll is composed of a cylindrical sleeve 3C, a cylindrical core 4C is inserted into the sleeve 3C, the electric heat pipe heater 6C that is inserted directly into the cylindrical core 4C, A rubber layer forming space S is formed between the outer periphery of the cylindrical core 4C and the inner periphery of the sleeve 3C.

At the top of the sleeves 3C, the upper cap 8C is attached to an air vent (not shown) is provided. A bottom cap 10C provided with a liquid rubber raw material injection path 11C is attached to the lower portion of the sleeve 3C . Further, on the outer peripheral surface of the sleeve 3C, thermocouple 20C for measuring the temperature of the sleeve 3C is kicked INSTALLATION.

The center which is offset outer portion from the bottom cap 10C, prismatic shutter pin 13C so as to cross through the injection path 11C is mounted slidably, locations corresponding to the injection passage 11C of the shutter pin 13C Is provided with a flow hole 14C for the liquid rubber material.

A screw portion 15C is provided on the upper portion of the electric heating pipe heater 6C, and a nut 17C for screwing the sleeve 3C is screwed to the screw portion 15C. Further, the lower central portion of the electrothermal pipe heater 6C and said bottom cap 10C and latch pin 16C is inserted, electrothermal pipe heater 6C is locked in the bottom cap 10C. Furthermore, a heating wire (not shown) is inserted in the electric heating pipe heater 6C, and an electric wire 19C is connected to the heating wire at the upper end of the heating pipe heater 6C.

  Even when the rubber roll 1C is manufactured using the manufacturing apparatus 2C as described above, the same operational effects as those of the first or second embodiment can be obtained. That is, by manufacturing the rubber roll 1C using the electrothermal pipe heater 6C, there is no need to attach and detach the sleeve 3C to the mold, and a heating furnace is not necessary. Further, since the heating is directly performed from the inside of the sleeve 3C by the electrothermal pipe heater 6C, the heating time of the sleeve 3C can be greatly shortened, so that the manufacturing apparatus 2C can be small in scale and the manufacturing cost can be reduced. I can do it. In this case, since the core 4C can be directly heated by the pipe heater 6C without passing through the center shafts 5A and 5B, the sleeve 3C can be heated with particularly high heat conduction efficiency, and the heating time of the sleeve 3C can be increased. Further, it can be greatly shortened. Furthermore, when the cooling cylinder 21C is used, the cooling time of the sleeve 3C can be greatly shortened. For example, in this embodiment, the rubber roll 1C can be manufactured in a short time of about 5 minutes for the temperature rise of the sleeve 3C, about 10 minutes for cooling, and a total of 15 minutes.

Further, in this embodiment, the heating wire in the electrically heated pipe heater. 6C, since the connection at one end of the electrically heated pipe heater 6C, insertion and withdrawal of the working of the cylindrical core 4C becomes very easy. Further, electric heat pipe heater 6C are the metallic, strong mechanical strength, the hard damaged during insertion and withdrawal of the working of the cylindrical core 4C.

A fourth embodiment is shown in FIGS.
In this embodiment, two heating stages H1 and H2 are arranged for one cooling stage C, and the heating stages H1 and H2 and the cooling stage C are connected by guide rails 40A and 40B, respectively. Manufacturing apparatus 2 of the rubber roll, carriage 30A which slides along the guide rails 40A, 40B, are mounted on the 30B, moves the heating stage H1 between cooling stage C, or a pressurized heat stage H2 between cooling stages C.

In the state shown in FIG. 10, after injecting a liquid rubber raw material into the rubber layer forming space S of the first manufacturing apparatus 2 and performing a heat curing process in the first heating stage H1, the manufacturing apparatus 2 is guided by the carriage 30A. It is transported along the rail 40A to the cooling stage C, and the cooling cylinder 21 is fitted on the outside of the sleeve 3 of the manufacturing apparatus 2 to perform the mounting cooling process. In the second heating stage H2, the second manufacturing apparatus 2 is used. A heat curing step is performed for.

In the state shown in FIG. 11 , the cooling cylinder 21 is opened after the cooling process for the first manufacturing apparatus 2 is completed in the cooling stage C. Next , the first manufacturing apparatus 2 is returned to the first heating stage H1 along the guide rail 40A by the carriage 30A, and the rubber roll 1 manufactured here is taken out.

  The second manufacturing apparatus 2 that has completed the heat curing process in the second heating stage H2 returns the guide rail 40B by the carriage 30B after the first manufacturing apparatus 2 is returned to the first heating stage H1 after the cooling process is completed. Are transferred to the cooling stage C and a cooling process is performed.

  Thereafter, the first manufacturing apparatus 2 and the second manufacturing apparatus 2 are reciprocated between the heating stages H1, H2 and the cooling stage C, respectively, and the heat curing process and the cooling process are alternately performed to manufacture the rubber roll 1.

  In the above manufacturing method, the heating temperature and the heating time in the heating and curing step greatly affect the physical properties of the rubber roll to be manufactured. Therefore, it is difficult to shorten the heating and curing time, but in the cooling step, it is sent to the cooling cylinder 21. It is possible to increase the cooling efficiency by setting the temperature of the cooling water low, and to shorten the cooling process time. Accordingly, if the heat curing process time is T1 and the cooling process time is T2, generally T1> T2, for example, T1 is set in the range of 8 to 15 minutes, and T2 is set in the range of 5 to 10 minutes.

上記タイムスケジュールによれば、加熱硬化工程時間Ｔ１のスパンで１個のゴムロールを製造することが出来る。 In this embodiment, for example, the following time schedule is set.

According to the above time schedule, one rubber roll can be manufactured in the span of the heat curing process time T1.

  By arranging a plurality of heating stages with respect to the cooling stage C in this way, a large amount of rubber rolls can be produced by a small-scale manufacturing system.

  The embodiments of the present invention have been described above by way of examples. However, the scope of the present invention is not limited to these embodiments, and can be changed or modified in accordance with the purpose within the scope of the claims. It is.

  The method for producing the rubber roll 1 of the present invention can be used industrially as a method for producing a transfer / fixing roll used in an electrophotographic copying machine.

Exploded perspective view of sleeve, core, and heater used in Example 1 Exploded sectional view of sleeve, core and heater used in Example 1 Side sectional view of sleeve, core and heater used in Example 1 The perspective view of the cooling cylinder used in Example 1 Side sectional view of sleeve, core, and cooling cylinder used in Example 1 The perspective view of the rubber roll manufactured in Example 1 Side sectional view of sleeve, core, and heater used in Example 2 Side sectional view of sleeve, core, and cooling cylinder used in Example 2 Side sectional view of sleeve, core and heater used in Example 3 Explanatory plan view of Example 4 (during cooling of the first manufacturing apparatus) Description plan view of Example 4 (after cooling the first manufacturing apparatus) Side sectional view of a conventional example Side sectional view of another conventional example

1 (1A, 1B) Rubber roll 2 (2A, 2B, 2C) Manufacturing device 3 (3A, 3B, 3C) Sleeve 4 (4A, 4B, 4C) Cylindrical core 6 (6A, 6B, 6C) Electric heating type pipe heater 21 (21A, 21B) Cooling cylinder 30 (30A, 30B) Dolly 40 (40A, 40B) Guide rail C Cooling stage H Heating stage S Rubber layer molding space

Claims (8)

Sleeve,
A cylindrical core inserted into the sleeve;
Consists of a electric heat pipe heater, which is inserted into the interior of the cylindrical core,
In the manufacturing apparatus for the rubber roll rubber layer molding space is formed between the inner periphery of the outer peripheral and the sleeve of said cylindrical core,
A rubber roll manufacturing apparatus comprising a center shaft that is inserted into the cylindrical core and into which the electric heating pipe heater is inserted between the cylindrical core and the electric heating pipe heater. Furthermore, cooling is mounted externally fitted to the outside of the sleeve in the process, rubber roll production apparatus according to claim 1, wherein the cooling water in the outside inner wall and a cooling cylinder that is inserted A rubber roll manufacturing apparatus according to claim 1;
Injecting a liquid rubber raw material into the rubber layer forming space in the rubber roll manufacturing apparatus, and heating and curing the liquid rubber raw material with the electric heating pipe heater ;
A cooling stage for cooling the rubber roll manufacturing apparatus by inserting the sleeve into a cooling cylinder ;
Rubber roll manufacturing system ing from the transport path connecting the heating stage and the cooling stage Rubber roll manufacturing system according to claim 3 for a single cooling stage is arranged a plurality of heating stages The transport path consists of guide rails,
Rubber roll manufacturing system according to claim 3 or 4 wherein the manufacturing apparatus is transported is placed on carriage that slides on the guide rail A rubber roll manufacturing apparatus according to claim 1 is prepared ,
Injecting a liquid rubber material in the rubber layer forming space being formed between the inner periphery of the outer peripheral and the sleeve of said cylindrical core,
By electric thermal pipe heaters allowed to cure by heating the liquid rubber material,
Method for producing a rubber roll that form a rubber layer around the cylindrical core After the liquid rubber raw material is heated and cured by the electric heating pipe heater ,
The method for manufacturing a rubber roll according to claim 6, wherein the sleeve of the rubber roll manufacturing apparatus is inserted into a cooling cylinder in which cooling water is inserted into the outer peripheral wall and cooled. Prepare the rubber roll manufacturing system according to claim 3,
In the heating stage by injecting a liquid rubber material in the rubber layer forming space being formed between the inner periphery of the outer peripheral and the sleeve of said cylindrical core, heat curing the liquid rubber material by electric thermal pipe heaters allowed the rubber layer is formed around the cylindrical core,
Thereafter , the rubber roll manufacturing apparatus is moved along the conveyance path and conveyed to the cooling stage,
Method for producing a cooling step cormorants the row rubber roll for cooling the sleeve of the apparatus for manufacturing the rubber roll is inserted into the cooling cylinder in the cooling stage

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