CN103240815B - The manufacture device of rubber rollers and the manufacture method of rubber rollers - Google Patents
The manufacture device of rubber rollers and the manufacture method of rubber rollers Download PDFInfo
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- CN103240815B CN103240815B CN201210524366.XA CN201210524366A CN103240815B CN 103240815 B CN103240815 B CN 103240815B CN 201210524366 A CN201210524366 A CN 201210524366A CN 103240815 B CN103240815 B CN 103240815B
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Abstract
The present invention provides a kind of manufacture device of rubber rollers and the manufacture method of rubber rollers, and the vulcanization that it can suppress at the axial both ends of the rubber rollers to be manufactured is bad.Have：Columnar 1st mould；2nd mould, it keeps to the one end for inserting the core bar of the 1st mould inside, and installed in one end of the 1st mould；3rd mould, its other end to core bar keeps, and installed in the other end of the 1st mould；Inlet, it is arranged at least one of the 2nd mould and the 3rd mould, and liquid rubber is injected between the outer peripheral face of core bar and the inner peripheral surface of the 1st mould；And heater, its length is more long than by the length of the length direction after the 1st mould, the 2nd mould and the 3rd die assembly, is contacted with the outer peripheral face of the 1st mould, the 2nd mould and the 3rd mould and these moulds are heated.
Description
Technical field
The present invention relates to a kind of manufacture device of rubber rollers, the manufacture method of rubber rollers.
Background technology
Patent Document 1 discloses following manufacture methods, i.e. by the pipe portion of release layer（24A）It is arranged on cylindrical shape
Sleeve（3A）Side face in, insert columned iron core（4A）, in the iron core（4A）Periphery and the pipe portion（24A）'s
Liquid rubber raw material is injected between inner side, is heated and is hardened the liquid rubber raw material, in the iron core（4A）Surrounding's shape
Rubber rollers are manufactured into rubber layer, in this manufacture method, in the cylindrical sleeve（3A）Foreign volume around heating wire
（6A）, heated.
Patent document 1：Japanese Unexamined Patent Publication 2007-15157 publications
The content of the invention
Problem of the invention is that the vulcanization at the axial both ends of the rubber rollers to be manufactured is bad.
The invention of technical scheme 1 is a kind of manufacture device of rubber rollers, and it has：The 1st cylindric mould；2nd mould,
It keeps to the one end for being inserted into the core bar of the 1st mould inside, also, installed in one end of the 1st mould；The
3 moulds, its other end to the core bar keeps, also, installed in the other end of the 1st mould；Inlet, it sets
Put at least one of the 2nd mould and the 3rd mould, to the outer peripheral face and the 1st mould of the core bar
Liquid rubber is injected between inner peripheral surface；And heater, its length ratio is by the 1st mould, the 2nd mould and described by 3rd
The length of the length direction after die assembly is long, and the outer peripheral face with the 1st mould, the 2nd mould and the 3rd mould connects
Touch and these moulds are heated.
The invention of technical scheme 2 is the manufacture device of the rubber rollers that technical scheme 1 is recorded, wherein, the 2nd mould and institute
It is cylinder to state the 3rd mould, and the external diameter of the 1st mould, the 2nd mould and the 3rd mould is identical.
The invention of technical scheme 3 is the manufacture device of the rubber rollers that technical scheme 1 or 2 is recorded, wherein, the heating utensil
There are multiple heating parts, these heating parts generate heat in the different piece of length direction, can independently carry out temperature control.
The invention of technical scheme 4 is a kind of manufacture method of rubber rollers, is had：Preparatory process, in the operation, prepares skill
The manufacture device of the rubber rollers any one of art scheme 1 to 3；Installation procedure, in the operation, to inserting the 1st mould
The two ends of the core bar in tool are kept, also, by the 2nd mould and the 3rd mould installion in the 1st mould
Two ends；Injection process, in the operation, from the inlet to the inner circumferential of the outer peripheral face of the core bar and the 1st mould
Liquid rubber is injected between face；And vulcanization process, in the operation, make the heater with the 1st mould, the described 2nd
The outer peripheral face of mould and the 3rd mould is contacted and these moulds is heated, and the liquid rubber is vulcanized.
The invention of technical scheme 5 is a kind of manufacture method of rubber rollers, and it has：Preparatory process, in the operation, prepares
The manufacture device of the rubber rollers described in technical scheme 3；Installation procedure, in the operation, described in inserting in the 1st mould
The two ends of core bar are kept, also, by the 2nd mould and the 3rd mould installion at the two ends of the 1st mould；Note
Enter operation, in the operation, injected from the inlet between the inner peripheral surface of the outer peripheral face of the core bar and the 1st mould
Liquid rubber；And vulcanization process, in the operation, make the heater and the 1st mould, the 2nd mould and described
The outer peripheral face contact of the 3rd mould, makes the heating temp of multiple heating parts of the heater different and these moulds is heated,
And the liquid rubber is vulcanized.
The effect of invention
Compared with the structure of technology according to the present invention scheme 1, the situation of the heater in without this structure, can press down
Vulcanization at the axial both ends of the manufactured rubber rollers of system is bad.
The structure of technology according to the present invention scheme 2, the feelings different from the external diameter of the 1st mould, the 2nd mould and the 3rd mould
Condition is compared, and can simplify the structure of heater.
The structure of technology according to the present invention scheme 3, axially can locally change the external diameter of the rubber rollers to be manufactured.
The manufacture method of technology according to the present invention scheme 4, the situation phase with the heater not used in this manufacture method
Than the vulcanization that can suppress the axial both ends of the rubber rollers to be manufactured is bad.
The manufacture method of technology according to the present invention scheme 5, can obtain and make the multiple heating parts in this manufacture method
Heating temp identical in the case of resulting rubber rollers the different rubber rollers of external diameter.
Brief description of the drawings
Fig. 1 is the oblique view of the structure of the manufacture device for representing rubber rollers.
Fig. 2 is the oblique view of the structure of the manufacture device for representing rubber rollers.
Fig. 3 is the oblique view of the structure for representing mould.
Fig. 4 is the profile of the structure of the manufacture device for representing rubber rollers.
Fig. 5 is the skeleton diagram of the structure of the heating part for representing heater.
Fig. 6-1 is the skeleton diagram of the operation of turning back in the manufacture method for represent rubber rollers.
Fig. 6-2 is the skeleton diagram of the operation of turning back in the manufacture method for represent rubber rollers.
Fig. 6-3 is the skeleton diagram of the operation of turning back in the manufacture method for represent rubber rollers.
Fig. 7 is the skeleton diagram of the variation of the operation of turning back in the manufacture method for represent rubber rollers.
Fig. 8 is the figure of the external diameter change for representing rubber rollers axial direction.
The explanation of label
12 cylindrical molds（One example of the 1st mould）
14A molds（One example of the 2nd mould）
Mould under 14B（One example of the 3rd mould）
18 inlets
20 core bars
50 heaters
52 heating parts
The manufacture device of 100 rubber rollers
Specific embodiment
Below, based on accompanying drawing, an example to implementation method involved in the present invention is illustrated.
（The manufacture device of rubber rollers）
The manufacture device 100 of the rubber rollers involved by present embodiment is manufacture rubber rollers（It is coated with the resin of pitch tube
Pipe coated roller）Device, as shown in Figures 1 and 2, contact with mould 10 and with mould 10 and mould 10 heated
Heater 50.Mould 10 as shown in Figures 2 and 3, has：As a cylindrical shape for example of the 1st mould of drum
Mould 12, inserts core bar 20 inside it；As the 2nd mould（End mold）An example mold 14A, its to insertion
One end of core bar 20 inside cylindrical mold 12 is kept, and on one end of cylindrical mold 12；And conduct
3rd mould（End mold）An example lower mould 14B, it keeps the other end of core bar 20, and installed in cylindrical shape mould
On the other end of tool 12.
Additionally, in Fig. 2 to 4, it is illustrated that installed the mould 10 in the state of aftermentioned pitch tube 13.In addition, mold
14A and lower mould 14B be marked with " on ", the title of D score, but as the application method of mould 10, be not limited to make mould
Tool 14A uses upward the situation of mould 10.
As shown in Figures 3 and 4, core bar 20 along cylindrical mold 12 axially with coaxial in cylindrical mold 12
Insert in portion.Core bar 20 has：Cylindric plug body portion 22；And columnar axle portion 24, it is with coaxial from core bar master
The axial two ends in body portion 22 are to axially external protrusion.The external diameter of axle portion 24 is smaller than the external diameter in plug body portion 22（Plug body portion
22 external diameter is bigger than the external diameter of axle portion 24）.
In the state of cylindrical mold 12 has been inserted into core bar 20, in outer peripheral face and the cylindrical mold 12 of core bar 20
Inner peripheral surface 12A（Pitch tube described later 13）Between, formed for filling half finished rubber（Thermosetting liquid rubber）Fill out
Fill space S（Reference picture 4）.
Additionally, in the present embodiment, core bar 20 is made up of multiple parts.Specifically, core bar 20 is configured to, and has：
Main part part 27A, it has plug body portion 22；And axle portion part 27B, it is separately fixed at main part part 27A's
Axial two ends, axial end portion and axle portion 24 with plug body portion 22.
As shown in Figures 3 and 4, mold 14A and lower mould 14B（Upper/lower die 14 is referred to as below）With formation
It is disc-shape（Cylindrical shape）Main part 15.In the radial direction central portion of the main part 15, patchhole is axially formed（Insertion
Portion）16, the axle portion 24 of the core bar 20 in insertion cylindrical mold 12 is inserted in the patchhole 16.In upper/lower die 14,
By inserting the axle portion 24 of core bar 20 in the patchhole 16 of main part 15, so as to keep the axle portion 24 of core bar 20.
In addition, as shown in figure 4, the main part 15 of upper/lower die 14 is inserted with contact surface 23 in the axle portion 24 of core bar 20
In the state of in patchhole 16, the end face 22A around axle portion 24 in the plug body portion 22 of the contact surface 23 and core bar 20
Contact.Be provided with the contact surface 23 as the O-ring seals 19 of seal member, the O-ring seals 19 by upper/lower die 14 with
Sealed between core bar 20.
The outer circumferential side of the O-ring seals 19 in the main part 15 of mold 14A is provided with embedded division 21, its axially to
Lower mould 14B sides are stretched out, and are embedded in the inner side of the axial end portion of cylindrical mold 12.Lower mould 14B similarly, in main part
The outer circumferential side of the O-ring seals 19 in 15 is provided with embedded division 21, and it axially stretches out to mold 14A sides, and embedded cylinder
The inner side of the axial end portion of shape mould 12.Upper/lower die 14 is embedded in the axial end portion of cylindrical mold 12 by making embedded division 21,
And from axially external to installation on the axial end portion of cylindrical mold 12.
In addition, the external diameter of the main part 15 of upper/lower die 14 is identical with the external diameter of cylindrical mold 12, in upper/lower die 14
In the state of being installed in cylindrical mold 12, the outer peripheral face of main part 15 is located at same with the outer peripheral face of cylindrical mold 12
In barrel surface.
Additionally, as shown in figure 4, the peripheral part of the patchhole 16 in lower mould 14B, forms multiple for noting in the circumferential direction
Enter the inlet 18 of half finished rubber.In the state of upper/lower die 14 is installed in cylindrical mold 12, the inlet 18 with
Communicated inside packing space S between the outer peripheral face of core bar 20 and the inner peripheral surface 12A of cylindrical mold 12.
Additionally, in the axially external outer surface side of mold 14A, the recess 17 of ring-type is formed with coaxial.In addition, note
Entrance 18 can also be not formed on lower mould 14B, and is formed on mold 14A.
As shown in Figures 1 and 2, heater 50 is formed as surrounding mould 10（Upper/lower die 14 and cylindrical mold 12）It is outer
The cylindrical shape of side face, the 1st calandria 50A and the 2nd calandria 50B formed with 2 parts are axially divided into.
1st calandria 50A and the 2nd calandria 50B are for example by drive mechanisms such as cylinders（Omit diagram）, to each other close to and
The position that mould 10 is sandwiched（Reference picture 1 and Fig. 4）Separate location away from each other（Reference picture 2）Drive.
As shown in figure 4, the length direction of the 1st calandria 50A and the 2nd calandria 50B（Axially）Length, than mould 10
Axial length（Upper/lower die 14 in the state of upper/lower die 14 is arranged in cylindrical mold 12 is matched somebody with somebody with cylindrical mold 12
Axial length after conjunction）Long, the 1st calandria 50A and the 2nd calandria 50B can connect with the axially overall outer peripheral face of mould 10
Touch and heated.
1st calandria 50A and the 2nd calandria 50B have multiple heating parts 52 respectively, and these heating parts 52 can be in length
The different piece heating in direction, and independently carry out temperature control.As shown in figure 5, multiple heating parts 52 have：Public wiring
54, it is public by multiple heating parts 52；And individual wired 56, it is directed to multiple heating parts 52 and is respectively provided with, defeated by changing
Enter to the magnitude of voltage of each heating part 52（Or current value）, such that it is able to each heating part 52 is controlled into different temperature.
In the present embodiment, as shown in figure 4, each heating part 52 is made up of this 3 part heating part 52A, 52B, 52C,
Heating part 52A, 52B, 52C have the main work(heated to mold 14A, cylindrical mold 12, lower mould 14B respectively
Energy.
（The manufacture method of rubber rollers）
Below, illustrated for the rubber rollers manufacture method using the rubber rollers manufacture device 100.In the rubber rollers
In manufacture method, the manufacture device 100 of rubber rollers is prepared first（Preparatory process）.
Then, according to the method for turning back of pitch tube described later, by the both ends of pitch tube 13 from cylindrical mold 12
The projection of two ends protrusion, turns back to the outer peripheral face at the two ends of cylindrical mold 12（Turn back operation, reference picture 6-3（C））.
（The method of turning back of pitch tube 13）
Herein, the method for turning back for pitch tube 13 is illustrated.
In the method for turning back of the pitch tube 13, such as Fig. 6-1（A）It is shown, insert resin in the inside of cylindrical mold 12
Pipe 13 so that protruded from the two ends of cylindrical mold 12 at the both ends of the pitch tube 13（Insertion operation）.Additionally, pitch tube 13
Length is its both ends from cylindrical mold 12 to the axially external length stretched out.
Then, such as Fig. 6-1（B）It is shown, from the inside of pitch tube 13 in the circumferential direction all-round scope in, radially apply
Uniform power so that at least axial in the projection 11 protruded from cylindrical mold 12 of the axial one end of pitch tube 13
Outboard Sections 11A is plastically deformed（1st deformation operation）.
Then, such as Fig. 6-1（C）It is shown, from the inside of pitch tube 13 in the circumferential direction all-round scope in, radially apply
Uniform power so that at least axle in the projection 11 protruded from cylindrical mold 12 of axial the other end of pitch tube 13
Part 11A is plastically deformed laterally（2nd deformation operation）.At this moment, the axially outer portion 11A after the plastic deformation of pitch tube 13
Inner peripheral surface diameter（Internal diameter）, the external diameter than cylindrical mold 12 is big.
The axial one end of pitch tube 13 and the plastic deformation of axial the other end, are specifically entered by following manner
It is capable, such as using as the air expansion device of extension fixture（air picker）The axial end portion of 60 insertion pitch tubes 13, until
Retainer 64 is abutted with the axial end portion of pitch tube 13, empty by being injected inside the rubber system balloon portion 62 to air expansion device 60
Gas etc. and expand it so that the projection 11 of pitch tube 13 is expanded.
Then, such as Fig. 6-2（A）、（B）And Fig. 6-3（A）、（B）、（C）It is shown, the portion after being plastically deformed pitch tube 13
The inner peripheral surface for dividing is contacted with the all-round of the outer peripheral face of cylinder part 64, and the cylinder part 64 has the external diameter than cylindrical mold 12
Big internal diameter, and make cylinder part 64 mobile to the axially center of cylindrical mold 12, so as to by the projection of pitch tube 13
11 turn back to the outer peripheral face of cylindrical mold 12（Turn back operation）.
Specifically, the operation of turning back is carried out according to following orders.
First, such as Fig. 6-2（A）It is shown, make the both ends of pitch tube 13 plastic deformation part inner peripheral surface, with than
The outer peripheral face contact of the cylinder part 64 of the big internal diameter of the external diameter of cylindrical mold 12（1st operation）.
Specifically, the axial one end of cylinder part 64（The end of the side of cylindrical mold 12）Outer peripheral face turn into shot-peening
The shot-peening face 64A of formation, the shot-peening face 64A are contacted with the inner peripheral surface of the plastic deformation part at the both ends of pitch tube 13.Also,
Under the state, the band of ring-type is installed in the outer peripheral face of pitch tube 13（Ring rubber）66, pitch tube 13 is maintained at cylinder part 64
On.
Then, such as Fig. 6-2（B）It is shown, a cylinder part 64 is moved towards the axial central portion of cylindrical mold 12
It is dynamic, the projection 11 of the one end of pitch tube 13 is turned back to the outer peripheral face of one end of cylindrical mold 12（2nd operation）.
Then, such as Fig. 6-3（A）It is shown, make axially external shifting of another cylinder part 64 towards cylindrical mold 12
It is dynamic, the pitch tube 13 at least eliminating the inside of cylindrical mold 12 it is lax after, such as Fig. 6-3（B）It is shown, at another
Near cylinder part 64, pitch tube 13 is pressed to the inner peripheral surface of cylindrical mold 12（3rd operation）.
Specifically, by the way that air expansion device 80 to be inserted the axle of the pitch tube 13 positioned at the other end of cylindrical mold 12
To end, and it is expanded to inside injection air etc. of the rubber system balloon portion 82 of air expansion device 80, so as to by resin
Pipe 13 is pressed to the inner peripheral surface of the other end of cylindrical mold 12.
Additionally, as shown in fig. 7, the 3rd operation can also be configured to, by entering between cylindrical mold 12 and pitch tube 13
Row decompression, so as to pitch tube 13 be pressed to the inner peripheral surface of cylindrical mold 12.
Then, such as Fig. 6-3（C）It is shown, another cylinder part 64 is moved towards the axial central portion of cylindrical mold 12
It is dynamic, the projection of the other end of pitch tube 13 is turned back to the outer peripheral face of the other end of cylindrical mold 12（4th operation）.
As described above, by the projection 11 for protruding the two ends from cylindrical mold 12 at the both ends of pitch tube 13,
Turned back to the outer peripheral face at the two ends of cylindrical mold 12, so as to pitch tube 13 can be pacified in cylindrical mold 12 as shown in Figure 3
Dress.In addition, at this moment, cylinder part 64, band 66 and air expansion device 80 are pulled down from pitch tube 13 certainly.
Then, as shown in Figures 3 and 4, mold 14A and lower mould 14B is installed at the two ends of cylindrical mold 12, to inserting
The two ends for entering the core bar 20 in cylindrical mold 12 are kept（Installation procedure）.
Specifically, for example, cylindrical mold 12 bottom install under mould 14B, then, from cylindrical mold 12
Upper end side core bar 20 is inserted in cylindrical mold 12, and the axle portion 24 of downside is embedded in the patchhole 16 of lower mould 14B
In, then, mold 14A is installed in the upper end of cylindrical mold 12, while the axle portion 24 of upside is embedded in into mold 14A's
In patchhole 16.
Thus, as shown in figure 4, due to the contact surface 23 in upper/lower die 14 and the core bar being located at around upper and lower axle portion 24
The end face 22A of main part 22 is abutted, therefore, the plug body portion 22 of core bar 20 is surrounded with coaxial by cylindrical mold 12, and
By upper/lower die 14 in axial clamping.Additionally, at this moment, the both ends of pitch tube 13 are also in cylindrical mold 12 and upper/lower die 14
Between be pressed respectively.
Then, from the inlet 18 being formed on lower mould 14B, half finished rubber is injected with pressure set in advance（Liquid
State rubber）（Injection process）.Then, half finished rubber is filled into the outer peripheral face in the plug body portion 22 of core bar 20 and is arranged on
In the packing space S between pitch tube 13 on the inner peripheral surface 12A of cylindrical mold 12.
Then, as shown in Fig. 1 and Fig. 4, heater 50 is contacted with the outer peripheral face of mould 10, make the heating part of heater 50
The heating temp of 52A, 52B, 52C is different, and mould 10 is heated, and half finished rubber is vulcanized（Vulcanization process）.
Specifically, heating part 52A, 52B, 52C of heater 50 clip mould 10 and mould 10 are carried out after preheat
Heating.
It is as noted above, heated by half finished rubber, so that half finished rubber is hardened.Half finished rubber is hardened
And become vulcanized rubber（Elastic caoutchouc）Afterwards, upper/lower die 14 is taken out from cylindrical mold 12, vulcanization rubber will be formed with
Glue（Elastic caoutchouc）Core bar 20 taken out from mould 10.Thus, the rubber rollers for being coated with pitch tube 13 are produced（Pitch tube bag
Cover roller）.
Herein, Fig. 8（B）In show it is several below in vulcanization process in the case of rubber rollers external diameter, i.e.,：To add
The heating temp of heating part 52A, 52B, 52C of hot device 50 is set to mutually synthermal（For example, 130 DEG C）Situation（Hereinafter referred to as etc.
Temperature heating, reference picture 8（B）Thick line）；With the heating temp of heating part 52B（For example, 130 DEG C）Compare, by heating part 52A,
The heating temp of 52C（For example, 160 DEG C）If obtaining situation higher（Hereinafter referred to as end high-temperature heating, reference picture 8（B）Two point
Line）；And the heating temp with heating part 52A, 52C（For example, 130 DEG C）Compare, by the heating temp of heating part 52B（Example
Such as, 160 DEG C）If obtaining situation higher（Hereinafter referred to as central portion high-temperature heating, reference picture 8（B）Chain-dotted line）.
Such as Fig. 8（B）It is shown, if the external diameter of the axial end portion of the rubber rollers under isothermal heating state is set into R1（Example
Such as, 100mm）, then the external diameter of the axial end portion of the rubber rollers in the case of the high-temperature heating of end is " R1- Δs A（Such as 40 μm）",
It is smaller compared with the external diameter of the rubber rollers under isothermal heating state.In addition, rubber rollers in the case of the high-temperature heating of end relative to
Rubber rollers under isothermal heating state, as towards axial both ends, external diameter is gradually reduced.
On the other hand, if the external diameter of the axial end portion of the rubber rollers under isothermal heating state is set into R1（For example,
100mm）, then the external diameter of the axial end portion of the rubber rollers in the case of central portion high-temperature heating is " R1+ Δs B（Such as 40 μm）", with
The external diameter of the rubber rollers under isothermal heating state is compared to larger.In addition, rubber rollers in the case of central portion high-temperature heating relative to
Rubber rollers under isothermal heating state, as towards axial both ends, external diameter gradually increases.
Additionally, Fig. 8（B）In D1 to D7 and Fig. 8（A）The axial location of shown rubber rollers 200 is corresponding.D4 represents rubber
The axial central portion of rubber roll.
It is as noted above, by making heating temp（Heating-up temperature）External diameter that is different and changing manufactured rubber rollers, this
A little it is based on following principle.It is filled into the thermosetting half finished rubber in mould 10（Thermosetting resin）Cause in heating
The stage that hardening is carried out, with temperature proportionally thermal expansion.Therefore, in the part that heating-up temperature is higher, with relatively low part phase
Than volumetric expansion when hardening is carried out becomes big, and amount of contraction when reverting to normal temperature also increases.Thus, can be compared in high-temperature portion
The small shape in low temperature portion.
（The effect of rubber rollers manufacture device 100 and rubber rollers manufacture method）
In the present embodiment, the 1st calandria 50A and the 2nd calandria 50B of heater 50 with comprising upper/lower die 14
The axially overall outer peripheral face of mould 10 is contacted and heated.Thus, with the structure for only being heated to cylindrical mold 12
Compare, can the temperature of upper/lower die 14 be maintained higher, such that it is able to suppress the axial both ends of manufactured rubber rollers
Vulcanization it is bad.
In addition, in the present embodiment, being heated to mould 10 again after being preheated due to heater 50, therefore, it can contracting
Short cure time, improves the productivity ratio of rubber rollers.
Additionally, existing（Japanese Unexamined Patent Publication 2007-15157 publications）Structure in, due to 10 one-tenth of heater 50 and mould
It is integrated, therefore, if heated in filling process of the half finished rubber to mould 10, when locally can change heating
Between, it is therefore necessary to begun to warm up after the completion of filling.In this regard, in the present embodiment, because heater 50 and mould 10 are independent
Constitute, therefore, even if the warmup heater 50 before half finished rubber is completed to the filling of mould 10, is also not in existing knot
This problem of structure.
In addition, in the present embodiment, because cylindrical mold 12, mold 14A and lower mould 14B external diameters are identical, because
This, as long as axially making the heater 50 contacted with the outer peripheral face of cylindrical mold 12, mold 14A and lower mould 14B
Inner peripheral surface be identical diameter so that simplification heater 50 structure.
In addition, in the present embodiment, can be with the heating temperature of heating part 52A, 52B, 52C of independent control heater 50
Degree, therefore, it can axially locally change the external diameter of the rubber rollers to be manufactured.
（The effect of method of turning back）
In the present embodiment, in the 1st deformation operation and the 2nd deformation operation, from the inside of pitch tube 13 in the circumferential direction
Radially applies uniform power in all-round scope, be plastically deformed the projection 11 of pitch tube 13, therefore, and from pitch tube 13
Inside multiple positions in the circumferential direction compare the situation that the projection 11 of pitch tube 13 is plastically deformed using pawl etc., can
To suppress the damage of pitch tube 13.
In addition, in operation of turning back, making the inner peripheral surface of the plastic deformation part of pitch tube 13 and the periphery of cylinder part 64
The all-round contact in face, then the projection 11 of pitch tube 13 is turned back to the outer peripheral face of cylindrical mold 12, therefore, it can to tree
The power when circumferential direction of fat pipe 13 integrally applies to turn back, so as to suppress the damage of pitch tube 13.
In addition, in the 3rd operation of operation of turning back, making another cylinder part 64 outside towards the axle of cylindrical mold 12
Side shifting, then, in the vicinity of another cylinder part 64, pitch tube 13 is pressed to cylindrical mold 12, therefore can press down
The fold of pitch tube processed 13.
It is as noted above, due to breakage and the fold of pitch tube 13 can be suppressed, hence in so that manufactured rubber rollers（Tree
Fat pipe coated roller）Yield rate improve.
（The variation of the manufacture device 100 of rubber rollers）
In the mould 10 of rubber rollers manufacture device 100, make that cylindrical mold 12, mold 14A and lower mould 14B's is outer
The different structure of the identical external diameter but it is also possible to be cylindrical mold 12, mold 14A and lower mould 14B in footpath.For example, also may be used
Being mold 14A and the lower mould 14B structures bigger than the external diameter of cylindrical mold 12.Additionally, cylindrical mold 12, on mould
Have in the different structure of external diameter of 14 and lower mould 14B, heater 50 is configured to, make the internal diameter of inner peripheral surface local vertically not
Together, contacted with the outer peripheral face with cylindrical mold 12, mold 14A and lower mould 14B.
In addition, as the heater 50 in rubber rollers manufacture device 100, being not limited to said structure.For example, it is also possible to
It is that multiple heating parts 52 do not carry out temperature control independently and unify to carry out temperature controlled structure.That is, heater 50 can also be
With the structure that uniform temperature is integrally heated to the axial direction of mould 10.Alternatively, it is also possible to mould 10（Cylindrical mold 12,
Upper/lower die 14）It is wholely set.
（The variation of rubber rollers manufacture method）
In above-mentioned heating process, make the heating temp of heating part 52A, 52B, 52C of heater 50 different and to mould
10 are heated, but it is also possible to which the external diameter with the rubber rollers to be obtained is corresponding, make the heating temp of heating part 52A, 52B, 52C
Necessarily mould 10 is heated.
（The variation of the method for turning back of pitch tube 13）
In above-mentioned method of turning back, after expanding the projection 11 at the both ends of pitch tube 13, by the protrusion at the both ends
Part 11 is turned back, but is not limited to this, it is also possible to after the projection 11 of the one end of pitch tube 13 is expanded, by the one end
The projection 11 in portion turns back, then, after the projection 11 of the other end of pitch tube 13 is expanded, by the other end
Projection 11 turns back.
In addition, in above-mentioned method of turning back, from the inside of pitch tube 13 in the circumferential direction all-round scope in radially apply
Uniform power, and the projection 11 of pitch tube 13 is plastically deformed, but this is not limited to, for example, it is also possible to be from resin
The inside of pipe 13 multiple position pawls in the circumferential direction etc. make the structure that the projection 11 of pitch tube 13 is plastically deformed.
The present invention is not limited to above-mentioned implementation method, can carry out various deformation, change, improvement.For example, it is also possible to suitable
Combine multiple above-mentioned shown variations and constitute in locality.
Claims (3)
1. a kind of manufacture device of rubber rollers, it has：
Columnar 1st mould；
2nd mould, it keeps to the one end for inserting the core bar of the 1st mould inside, also, installed in the 1st mould
One end of tool；
3rd mould, its other end to the core bar keeps, also, installed in the other end of the 1st mould；
Inlet, it is arranged at least one of the 2nd mould and described 3rd mould, in the outer peripheral face of the core bar
Liquid rubber is injected and the inner peripheral surface of the 1st mould between；And
Heater, its length is than by the long of the length direction after the 1st mould, the 2nd mould and the 3rd die assembly
Degree length, contacts with the outer peripheral face of the 1st mould, the 2nd mould and the 3rd mould and these moulds is heated,
The heater has multiple heating parts, and they generate heat in the different piece of length direction, can independently enter trip temperature
Control,
Change the external diameter of manufactured rubber rollers by making the heating temp of the multiple heating part different.
2. the manufacture device of rubber rollers according to claim 1, wherein,
2nd mould and the 3rd mould are cylinder,
The external diameter of the 1st mould, the 2nd mould and the 3rd mould is identical.
3. a kind of manufacture method of rubber rollers, it has：
Preparatory process, in the operation, prepares the manufacture device of the rubber rollers described in claim 1 or 2；
Installation procedure, in the operation, the two ends of the core bar to being inserted into the 1st mould keep, also,
The two ends of the 1st mould are installed by the 2nd mould and the 3rd mould；
Injection process, in the operation, from the inlet to the outer peripheral face of the core bar and the 1st mould inner peripheral surface it
Between inject liquid rubber；And
Vulcanization process, in the operation, makes the heater with the 1st mould, the 2nd mould and the 3rd mould
Outer peripheral face is contacted, and makes the heating temp of multiple heating parts of the heater different and these moulds are heated, and to institute
Liquid rubber is stated to be vulcanized,
In the vulcanization process, temperature control is carried out to the multiple heating part and to the 1st mould, the 2nd mould
And the 3rd mould is heated, manufactured rubber rollers are changed by making the heating temp of the multiple heating part different
External diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012026539A JP5105012B1 (en) | 2012-02-09 | 2012-02-09 | Rubber roll manufacturing apparatus and rubber roll manufacturing method |
| JP2012-026539 | 2012-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103240815A CN103240815A (en) | 2013-08-14 |
| CN103240815B true CN103240815B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524366.XA Active CN103240815B (en) | 2012-02-09 | 2012-12-07 | The manufacture device of rubber rollers and the manufacture method of rubber rollers |
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| Country | Link |
|---|---|
| JP (1) | JP5105012B1 (en) |
| CN (1) | CN103240815B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109049438A (en) * | 2018-06-26 | 2018-12-21 | 南京理工大学 | A kind of mold and preparation method thereof preparing hollow tube |
| CN115195038A (en) * | 2022-07-07 | 2022-10-18 | 青岛科技大学 | Leather bag injection mould and leather bag forming method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191225A (en) * | 1962-10-30 | 1965-06-29 | American Can Co | Apparatus for control of material distrial in blow molded plastic articles |
| US5089201A (en) * | 1987-12-29 | 1992-02-18 | Canon Kabushiki Kaisha | Method for preparing elastic roller |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009172907A (en) * | 2008-01-25 | 2009-08-06 | Canon Chemicals Inc | Shaping mold and manufacturing device of rubber roller and its manufacturing method |
| JP2010069823A (en) * | 2008-09-22 | 2010-04-02 | Canon Chemicals Inc | Molding die for elastic roller |
-
2012
- 2012-02-09 JP JP2012026539A patent/JP5105012B1/en not_active Expired - Fee Related
- 2012-12-07 CN CN201210524366.XA patent/CN103240815B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191225A (en) * | 1962-10-30 | 1965-06-29 | American Can Co | Apparatus for control of material distrial in blow molded plastic articles |
| US5089201A (en) * | 1987-12-29 | 1992-02-18 | Canon Kabushiki Kaisha | Method for preparing elastic roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103240815A (en) | 2013-08-14 |
| JP5105012B1 (en) | 2012-12-19 |
| JP2013163284A (en) | 2013-08-22 |
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