CN103240816A - Folding method of resin pipe, and manufacturing method of resin pipe coated roller - Google Patents
Folding method of resin pipe, and manufacturing method of resin pipe coated roller Download PDFInfo
- Publication number
- CN103240816A CN103240816A CN2012105262162A CN201210526216A CN103240816A CN 103240816 A CN103240816 A CN 103240816A CN 2012105262162 A CN2012105262162 A CN 2012105262162A CN 201210526216 A CN201210526216 A CN 201210526216A CN 103240816 A CN103240816 A CN 103240816A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- cylindrical mold
- pitch tube
- resin pipe
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention provides a folding method of a resin pipe, and a manufacturing method of a resin pipe coated roller. The invention aims to restrain resin pipe damage generated in resin pipe folding. The folding method comprises the following steps: an inserting step of inserting the resin pipe into the inner part of a cylindrical mold in a mode that two ends of the resin pipe are projected from two ends of the cylindrical mold; a deforming step of applying a uniform force on the whole circumference in the circumferential direction from the inner part of the resin pipe so that at least axial outside part of the projected part of the resin pipe deforms plastically; and a folding step of causing the inner circumferential surface of the plastically deformed part of the resin pipe to contact with the outer circumferential surface of a cylinder component of which the inner dimeter is larger than the outer diameter of the cylindrical mold, so that the cylinder component moves to the axial center of the cylindrical mold, thereby folding the projected parts of the resin pipe to the outer circumferential surface of the cylindrical mold.
Description
Technical field
The present invention relates to a kind of method of turning back of pitch tube, the manufacture method of pitch tube coated roller.Background technology
Disclose a kind of device that turns back in patent documentation 1 and patent documentation 2, it inserts pipe in the mould conduit, utilize a plurality of pawls with the expansion of the two ends of this pipe after, outer peripheral face turns back at the two ends of mould conduit.
Patent documentation 1: Japan opens flat 6-26824 communique in fact
Patent documentation 2: Japan opens flat 6-26825 communique in fact
Summary of the invention
Problem of the present invention is, the damage of this pitch tube that produces when suppressing to turn back pitch tube.
The invention of technical scheme 1 is a kind of method of turning back of pitch tube, and it has following operation: insert operation, and in this operation, so that the mode that protrude from the two ends of cylindrical mold at the both ends of pitch tube, the inside of pitch tube being inserted this cylindrical mold; The distortion operation in this operation, radially applies uniform power from the inside of above-mentioned pitch tube, and makes at least axially Outboard Sections plastic deformation from the projection that above-mentioned cylindrical mold is protruded of above-mentioned pitch tube on circumferential whole circumference; And the operation of turning back, in this operation, make the inner peripheral surface of part of the plastic deformation of above-mentioned pitch tube, contact with the outer peripheral face of internal diameter greater than the cylinder part of the external diameter of above-mentioned cylindrical mold, above-mentioned cylinder part is moved towards the axial centre of above-mentioned cylindrical mold, the above-mentioned projection of the above-mentioned pitch tube outer peripheral face to above-mentioned cylindrical mold is turned back.
The invention of technical scheme 2 is the methods of turning back of a kind of technical scheme 1 described pitch tube, wherein, the above-mentioned operation of turning back has following operation: the 1st operation, in this operation, make the inner peripheral surface of part of plastic deformation at the both ends of above-mentioned pitch tube, contact with the outer peripheral face of internal diameter greater than the cylinder part of the external diameter of above-mentioned cylindrical mold; The 2nd operation, in this operation, the above-mentioned cylinder part that makes a side moves towards the axial centre of above-mentioned cylindrical mold, and the above-mentioned projection of an end of the above-mentioned pitch tube outer peripheral face to an end of above-mentioned cylindrical mold is turned back; The 3rd operation, this operation after above-mentioned the 2nd operation, the above-mentioned cylinder part that makes opposite side towards above-mentioned cylindrical mold axially outside side shifting, then near the cylinder part of above-mentioned opposite side, with above-mentioned pitch tube by being pressed on the above-mentioned cylindrical mold; And the 4th operation, this operation is after above-mentioned the 3rd operation, the above-mentioned cylinder part that makes opposite side moves towards the axial centre of above-mentioned cylindrical mold, and the above-mentioned projection of the other end of the above-mentioned pitch tube outer peripheral face to the other end of above-mentioned cylindrical mold is turned back.
The invention of technical scheme 3 is manufacture methods of a kind of pitch tube coated roller, it has following operation: the operation of turning back, in this operation, utilize the method for turning back of technical scheme 1 or 2 described pitch tubes, the above-mentioned projection at the both ends of the above-mentioned pitch tube outer peripheral face to the two ends of above-mentioned cylindrical mold is turned back; Installation procedure in this operation, will and insert the end mould that the core bar in this pitch tube keeps to the above-mentioned pitch tube after turning back in the two ends of above-mentioned cylindrical mold, install to the two ends of above-mentioned cylindrical mold; Injection process in this operation, injects elastomeric material from above-mentioned end mould; And vulcanization process, in this operation, above-mentioned cylindrical mold and above-mentioned end mould are heated, make above-mentioned elastomeric material sulfuration.
The effect of invention
According to the method for turning back of technical scheme 1 of the present invention, in the different power that makes progress in week the situation of pitch tube plastic deformation is compared with inner utilization from pitch tube, the damage of this pitch tube that produces in the time of can suppressing to turn back pitch tube.
According to the method for turning back of technical scheme 2 of the present invention, compare with the situation that does not have the 3rd operation in this method, can suppress the fold of pitch tube.
According to the manufacture method of technical scheme 3 of the present invention, compare with the structure that does not have the operation of turning back in this manufacture method, can improve the yield rate of the pitch tube coated roller that produces.
Description of drawings
Fig. 1 is the oblique view of structure of the manufacturing installation of expression rubber rollers.
Fig. 2 is the oblique view of structure of the manufacturing installation of expression rubber rollers.
Fig. 3 is the oblique view of the structure of expression mould.
Fig. 4 is the profile of structure of the manufacturing installation of expression rubber rollers.
Fig. 5 is the schematic diagram of structure of the heating portion of expression heater.
Fig. 6-the 1st, the schematic diagram of the operation of turning back in the manufacture method of expression rubber rollers.
Fig. 6-the 2nd, the schematic diagram of the operation of turning back in the manufacture method of expression rubber rollers.
Fig. 6-the 3rd, the schematic diagram of the operation of turning back in the manufacture method of expression rubber rollers.
Fig. 7 is the schematic diagram of variation of the operation of turning back in the manufacture method of expression rubber rollers.
Fig. 8 be the expression rubber rollers axially on the figure that changes of external diameter.
The explanation of label
The axial Outboard Sections of 11A
11 projections
12 cylindrical mold
13 pitch tubes
14B bed die (example of end mould)
14A mold (example of end mould)
20 core bars
64 cylinder parts
The specific embodiment
Below, based on an example of description of drawings embodiment involved in the present invention.
(manufacturing installation of rubber rollers)
The manufacturing installation 100 of the rubber rollers that present embodiment is related is the device of making rubber rollers (being coated with the pitch tube coated roller of pitch tube), as depicted in figs. 1 and 2, has: mould 10; And contact with mould 10 and heater 50 that mould 10 is heated.As shown in Figures 2 and 3, mould 10 has: as the cylindrical mold 12 of an example of the 1st mould of drum, its inner core bar 20 that inserts; As the mold 14A of an example of the 2nd mould (end mould), its end to the core bar 20 of the inside of inserting cylindrical mold 12 keeps, and is installed in an end place of cylindrical mold 12; And as the bed die 14B of an example of the 3rd mould (end mould), it keeps the other end of core bar 20, and is installed in the other end place of cylindrical mold 12.
In addition, the mould 10 under the state that pitch tube 13 described later is installed shown in Fig. 2 ~ 4.In addition, though mold 14A and bed die 14B be have " on ", the title of D score, as the using method of mould 10, be not limited to make mold 14A to use the situation of mould 10 towards the top.
As shown in Figure 3 and Figure 4, core bar 20 is along the inside of axially and coaxially inserting cylindrical mold 12 of cylindrical mold 12.Core bar 20 has: the core bar main part 22 of drum; And the axial region 24 of drum, protrude coaxially towards the axial outside at its axial two ends from core bar main part 22.The external diameter of axial region 24 is less than the external diameter (external diameter of core bar main part 22 is greater than the external diameter of axial region 24) of core bar main part 22.
Under the state that core bar 20 is inserted in the cylindrical mold 12, at the outer peripheral face of core bar 20 and the inner peripheral surface 12A(pitch tube 13 described later of cylindrical mold 12) between, be formed for filling the packing space S(of half finished rubber (the aqueous rubber of thermosetting) with reference to Fig. 4).
In addition, in the present embodiment, core bar 20 is made of a plurality of parts.Particularly, core bar 20 constitutes to have: main part parts 27A, and it has core bar main part 22; The axial end portion of core bar main part 22, it is individually fixed in the axial two ends of main part parts 27A; And axial region parts 27B, it has axial region 24.
As shown in Figure 3 and Figure 4, mold 14A and bed die 14B(are following is generically and collectively referred to as mould 14 up and down with them) have a main part 15 that forms disc-shape (cylindrical shape).At the radially central portion of this main part 15, be formed with patchhole (insertion section) 16 vertically, it is used for making the axial region 24 that inserts the core bar 20 in the cylindrical mold 12 to insert.As mould 14 up and down, insert in the patchhole 16 of main parts 15 by the axial region 24 with core bar 20, thereby keep the axial region 24 of core bar 20.
In addition, as shown in Figure 4, the main part 15 of mould 14 has contact-making surface 23 up and down, and its axial region 24 at core bar 20 inserts under state in the patchholes 16, contacts with the end face 22A around axial region 24 of the core bar main part 22 of core bar 20.Be provided with O RunddichtringO 19 as seal member at this contact-making surface 23, it is to sealing between mould 14 and the core bar 20 up and down.
The outer circumferential side of the O RunddichtringO 19 in the main part 15 of mold 14A is provided with Embedded Division 21, and it stretches out towards bed die 14B side vertically, embeds the inboard of the axial end portion of cylindrical mold 12.Bed die 14B is provided with Embedded Division 21 at the outer circumferential side of the O of main part 15 RunddichtringO 19 also in the same manner, and it stretches out towards mold 14A side vertically, embeds the inboard of the axial end portion of cylindrical mold 12.Mould 14 passes through Embedded Division 21 is embedded in the axial end portion of cylindrical mold 12 up and down, thereby installs from the axial outside with respect to the axial end portion of cylindrical mold 12.
In addition, the external diameter of the main part 15 of mould 14 is identical with the external diameter of cylindrical mold 12 up and down, and under mould 14 up and down was installed to state on the cylindrical mold 12, the outer peripheral face of the outer peripheral face of main part 15 and cylindrical mold 12 was positioned on the same barrel surface.
In addition, as shown in Figure 4, on the peripheral part of the patchhole 16 in bed die 14B, a plurality of for the inlet 18 that injects half finished rubber along circumferentially being formed with.Under mould 14 up and down is installed to state on the cylindrical mold 12, the interior connection of packing space S between the inner peripheral surface 12A of this inlet 18 and the outer peripheral face that is formed at core bar 20 and cylindrical mold 12.
In addition, the outer surface side in the axial outside of mold 14A is formed with the recess 17 of ring-type coaxially.In addition, inlet 18 also can not be formed on the bed die 14B, and is formed on the mold 14A.
As depicted in figs. 1 and 2, heater 50 forms and surrounds mould 10(mould 14 and cylindrical mold 12 up and down) the drum of outer peripheral face, have and be divided into two-part the 1st calandria 50A and the 2nd calandria 50B vertically.
The 1st calandria 50A and the 2nd calandria 50B for example are urged to closer to each other and the clip position (with reference to Fig. 1 and Fig. 4) of clamping mould 10 and separation point position (with reference to Fig. 2) separated from one another by driving mechanisms such as cylinder (omitting diagram).
As shown in Figure 4, the length of the length direction (axially) of the 1st calandria 50A and the 2nd calandria 50B is greater than the axial length of mould 10 (being installed on the axial length that mould up and down 14 under the state of cylindrical mold 12 and cylindrical mold 12 add up at mould 14 up and down), and the 1st calandria 50A and the 2nd calandria 50B can be contacted with the outer peripheral face of the axial integral body of mould 10 and heat.
The 1st calandria 50A and the 2nd calandria 50B have a plurality of heating portion 52 separately, and its different piece place heating in the longitudinal direction can be carried out temperature control independently.As shown in Figure 5, a plurality of heating portion 52 has the shared distribution 54 that shared by a plurality of heating portion 52 and respectively at the independent distribution 56 of each setting of a plurality of heating portion 52, by the magnitude of voltage (or current value) of change to each heating portion 52 input, each heating portion 52 can be controlled to be different temperature.
In the present embodiment, as shown in Figure 4, heating portion 52 is made of the 52A of heating portion, 52B, three heating portions of 52C, and the 52A of heating portion, 52B, 52C have the function that mainly mold 14A, cylindrical mold 12, bed die 14B is heated respectively.
(manufacture method of rubber rollers)
Below, the manufacture method of the rubber rollers of the manufacturing installation 100 that uses above-mentioned rubber rollers is described.In the manufacture method of this rubber rollers, at first, prepare the manufacturing installation 100(preparatory process of rubber rollers).
Then, utilize the method for turning back of pitch tube described later, the projection that the two ends from cylindrical mold 12 at the both ends of pitch tube 13 are protruded is to the outer peripheral face at the two ends of cylindrical mold 12 turn back (operation of turning back is with reference to Fig. 6-3(C)).
(method of turning back of pitch tube 13)
At this, the method for turning back of pitch tube 13 is described.
In the method for turning back of this pitch tube 13, shown in Fig. 6-1(A), so that the mode that protrude from the two ends of cylindrical mold 12 at the both ends of pitch tube 13, the inside (insertion operation) that pitch tube 13 is inserted cylindrical mold 12.In addition, the length of pitch tube 13 is made as the length that its both ends are exposed to the axial outside from cylindrical mold 12.
Then, shown in Fig. 6-1(B), on circumferential whole circumference, radially apply uniform power by the inside from pitch tube 13, and make at least axially Outboard Sections 11A plastic deformation (1st distortion operation) of an axial end from the projection 11 that cylindrical mold 12 is protruded of pitch tube 13.
Then, shown in Fig. 6-1(C), on circumferential whole circumference, radially apply uniform power by the inside from pitch tube 13, and make at least axially Outboard Sections 11A plastic deformation (2nd distortion operation) of axial the other end from the projection 11 that cylindrical mold 12 is protruded of pitch tube 13.At this moment, the generation of pitch tube 13 diameter (internal diameter) of inner peripheral surface of axial Outboard Sections 11A of plastic deformation greater than the external diameter of cylindrical mold 12.
An axial end of pitch tube 13 and the axially plastic deformation of the other end, particularly, for example by inserting in the axial end portion of pitch tube 13 as the air expansion device (air picker) 60 of extension fixture, until the axial end portion butt of retainer 64 with pitch tube 13, inject air etc. to the inside of the air bag portion 62 of the rubber system of air expansion device 60 and air expansion device 60 is expanded, thereby make projection 11 expansions of pitch tube 13 and carry out.
Then, shown in Fig. 6-2(A), (B) and Fig. 6-3(A), (B), (C), make the inner peripheral surface of part of plastic deformation of pitch tube 13 and internal diameter greater than the overall circumferential contact of the outer peripheral face of the cylinder part 64 of the external diameter of cylindrical mold 12, make cylinder part 64 towards the axial central mobile of cylindrical mold 12, with the projection 11 of pitch tube 13 to the outer peripheral face of cylindrical mold 12 turn back (operation of turning back).
This turns back operation specifically, carries out with following flow process.
At first, shown in Fig. 6-2(A), make the inner peripheral surface of plastic deformation part at the both ends of pitch tube 13, contact (the 1st operation) with internal diameter greater than the outer peripheral face of the cylinder part 64 of the external diameter of cylindrical mold 12.
Particularly, the outer peripheral face of an axial end of cylinder part 64 (ends of cylindrical mold 12 sides) forms by the 64A of the sandblast face after the sandblast, and this sandblast face 64A is contacted with the inner peripheral surface of the plastic deformation part at the both ends of pitch tube 13.Then, under this state, at the outer peripheral face of pitch tube 13 band (ring-shaped rubber) 66 of ring-type is installed, pitch tube 13 is remained on the cylinder part 64.
Then, shown in Fig. 6-2(B), make the cylinder part 64 of a side towards the axial central mobile of cylindrical mold 12, with the projection 11 of an end of pitch tube 13 to the outer peripheral face of an end of cylindrical mold 12 turn back (the 2nd operation).
Then, shown in Fig. 6-3(A), the cylinder part 64 that makes opposite side towards cylindrical mold 12 axially outside side shifting, at least eliminate after pitch tube 13 lax of cylindrical mold 12 inside, shown in Fig. 6-3(B), near the cylinder part 64 of opposite side, with pitch tube 13 by (the 3rd operation) on the inner peripheral surface that is pressed in cylindrical mold 12.
Particularly, by air expansion device 80 is inserted the axial end portion that pitch tube 13 is arranged in the other end of cylindrical mold 12, inject air etc. to the inside of the air bag portion 82 of the rubber system of air expansion device 80 and air expansion device 80 is expanded, thereby with on the inner peripheral surface of pitch tube 13 by the other end that is pressed in cylindrical mold 12.
In addition, as shown in Figure 7, the 3rd operation also can constitute, by to reducing pressure between cylindrical mold 12 and the pitch tube 13, thereby with pitch tube 13 by on the inner peripheral surface that is pressed in cylindrical mold 12.
Then, shown in Fig. 6-3(C), make the cylinder part 64 of opposite side towards the axial central mobile of cylindrical mold 12, with the projection 11 of the other end of pitch tube 13 to the outer peripheral face of the other end of cylindrical mold 12 turn back (the 4th operation).
Like this, turn back by projection 11 that the both ends of pitch tube 13 are protruded from the two ends of cylindrical mold 12 outer peripheral face to the two ends of cylindrical mold 12, thereby as shown in Figure 3, pitch tube 13 is installed on the cylindrical mold 12.In addition, cylinder part 64, band 66 and air expansion device 80 unload from pitch tube 13 at this moment certainly.
Then, as shown in Figure 3 and Figure 4, the two ends with mold 14A and bed die 14B are installed on cylindrical mold 12 keep (installation procedure) to the two ends of inserting the core bar 20 in the cylindrical mold 12.
Particularly, for example bed die 14B is installed on the bottom of cylindrical mold 12, from the upper end side of cylindrical mold 12 core bar 20 is inserted in the cylindrical mold 12 then, the axial region 24 of downside is embedded in the patchhole 16 of bed die 14B.Then, on one side mold 14A is installed on the upper end of cylindrical mold 12, the axial region 24 with upside embeds in the patchhole 16 of mold 14A on one side.
Thus, as shown in Figure 4, the contact-making surface 23 of mould 14 and the end face 22A butt that is positioned at the core bar main part 22 around the axial region up and down 24 up and down, therefore, the core bar main part 22 of core bar 20 is surrounded coaxially by cylindrical mold 12, and by mould 14 clamping in the axial direction up and down.In addition, at this moment, the both ends of pitch tube 13 also are pressed against cylindrical mold 12 respectively and up and down between the mould 14.
Then, inject half finished rubber (aqueous rubber) (injection process) with predetermined pressure from the inlet 18 that is formed on the bed die 14B.So half finished rubber is filled at the outer peripheral face of the core bar main part 22 of core bar 20 and is installed in the packing space S between the pitch tube 13 on the inner peripheral surface 12A of cylindrical mold 12.
Then, as shown in Figure 1 and Figure 4, heater 50 is contacted with the outer peripheral face of mould 10, the heating temp of the 52A of heating portion, 52B, 52C that makes heater 50 is different and mould 10 is heated, and makes half finished rubber sulfuration (vulcanization process).
Particularly, the 52A of heating portion of heater 50,52B, 52C after preheating, clamping mould 10 and mould 10 is heated.
Like this, by half finished rubber is heated, and make the half finished rubber sclerosis.Half finished rubber hardens and after becoming vulcanized rubber (elastic caoutchouc), unloads mould 14 up and down from cylindrical mold 12, takes out the core bar 20 that is formed with vulcanized rubber (elastic caoutchouc) from mould 10.Like this, produce the rubber rollers (pitch tube coated roller) that is coated with pitch tube 13.
At this, Fig. 8 (B) shows in vulcanization process, the 52A of heating portion of heater 50,52B, the heating temp of 52C be uniform temp (for example 130 ℃) situation (below be called equality of temperature heating, thick line with reference to Fig. 8 (B)), the 52A of heating portion, the heating temp of 52C (for example 160 ℃) be higher than the heating temp (for example 130 ℃) of the 52B of heating portion situation (below be called the heating of end high temperature, double dot dash line with reference to Fig. 8 (B)), and the heating temp of the 52B of heating portion (for example 160 ℃) is higher than the 52A of heating portion, the situation of the heating temp of 52C (for example 130 ℃) (below be called central portion high temperature heating, chain-dotted line with reference to Fig. 8 (B)) under, the external diameter of rubber rollers.
Shown in Fig. 8 (B), if the external diameter at the axial end portion place of the rubber rollers under the equality of temperature heating state is made as for example 100mm of R1(), then the external diameter of the axial end portion of the rubber rollers under the end high temperature heating state is " R1-Δ A(is 40 μ m for example) ", less than the external diameter of the rubber rollers under the equality of temperature heating state.In addition, with respect to the rubber rollers under the equality of temperature heating state, the rubber rollers under the high temperature heating state of end is along with near axial both ends and external diameter reduces gradually.
On the other hand, if the external diameter of the rubber rollers under the equality of temperature heating state is made as for example 100mm of R1(), then the external diameter of the axial end portion of the rubber rollers under the central portion high temperature heating state is " R1+ Δ B(is 40 μ m for example) ", greater than the external diameter of the rubber rollers under the equality of temperature heating state.In addition, with respect to the rubber rollers under the equality of temperature heating state, the rubber rollers under the central portion high temperature heating state is along with near axial both ends and external diameter increases gradually.
In addition, the D1 ~ D7 among Fig. 8 (B) is corresponding with the axial location of the rubber rollers 200 shown in Fig. 8 (A).D4 represents the axial central authorities of rubber rollers.
As implied above, the external diameter of the rubber rollers that produces along with heating temp (heating-up temperature) difference changes based on following principle.Be filled in thermosetting half finished rubber (thermosetting resin) in the mould 10 in stage of sclerosis gradually along with heating, the ground thermal expansion is directly proportional with temperature.Therefore, compare with the part that heating-up temperature is low, it is bigger that the higher part of heating-up temperature is in the volumetric expansion of hardening when carrying out, and the amount of contraction when recovering normal temperature is also bigger.Thus, obtain the shape littler than low-temp. portion at the high-temperature portion place.
(effect of the manufacturing installation 100 of rubber rollers and the manufacture method of rubber rollers)
In the present embodiment, the 1st calandria 50A of heater 50 and the 2nd calandria 50B with comprise that the outer peripheral face of the axial integral body of the mould 10 of mould 14 contacts and heats up and down.Thus, compare with the structure that only cylindrical mold 12 is heated, the temperature maintenance of mould 14 up and down can be got higher, thereby the sulfuration at the axial both ends of the rubber rollers that produces is bad.
In addition, in the present embodiment, after in advance to heater 50 heating, with heater 50 heating moulds 10, therefore, cure time shortens, and has improved the productivity ratio of rubber rollers.
In addition, in the structure of existing (TOHKEMY 2007-15157 communique), heater 50 and mould 10 are one, therefore, if in the process of in mould 10, filling half finished rubber, heat, then change the heat time heating time of part position, need behind end-of-fill, begin heating.Relative therewith, in the present embodiment, because heater 50 and mould 10 are to constitute separately, therefore, even before filling the half finished rubber end to mould 10, in advance heater 50 is heated, can not produce the problem in the existing structure yet.
In addition, in the present embodiment, cylindrical mold 12, mold 14A are identical with the external diameter of bed die 14B, therefore, the inner peripheral surface of the heater 50 that contacts with the outer peripheral face of cylindrical mold 12, mold 14A and bed die 14B is also as long as form certain diameter vertically, heater 50 simple in structure.
In addition, in the present embodiment, therefore the 52A of heating portion of control heater 50, the heating temp of 52B, 52C, can change the external diameter of the rubber rollers of manufacturing vertically partly independently.
(effect of the method for turning back)
In the present embodiment, in the 1st distortion operation and the 2nd distortion operation, on circumferential whole circumference, radially apply uniform power from the inside of pitch tube 13, make projection 11 plastic deformations of pitch tube 13, therefore, the situation of projection 11 plastic deformations of pitch tube 13 is compared with utilizing from the pawl at a plurality of positions that make progress in week of the inside of pitch tube 13 etc., suppressed the damage of pitch tube 13.
In addition, in the operation of turning back, make the overall circumferential contact of the outer peripheral face of the inner peripheral surface of plastic deformation part of pitch tube 13 and cylinder part 64, the projection 11 of pitch tube 13 is turned back at the outer peripheral face of cylindrical mold 12, therefore, power when circumferentially applying on the whole of pitch tube 13 turned back suppresses the damage of pitch tube 13.
In addition, in the 3rd operation of the operation of turning back, the cylinder part 64 that makes opposite side towards cylindrical mold 12 axially outside after the side shifting, near the cylinder part 64 of opposite side, pitch tube 13 by being pressed on the cylindrical mold 12, therefore, is suppressed the fold of pitch tube 13.
Like this, owing to suppressed breakage and the fold of pitch tube 13, therefore, improved the yield rate of the rubber rollers (pitch tube coated roller) that produces.
(variation of the manufacturing installation 100 of rubber rollers)
In addition, the heater 50 in the manufacturing installation 100 of rubber rollers is not limited to said structure.For example, a plurality of heating portion 52 also can dependently carry out temperature control, but forms the unified temperature controlled structure of carrying out.That is, heater 50 also can be the structure that the axial integral body of mould 10 is heated with uniform temperature.
In addition, heater 50 also can with mould 10(cylindrical mold 12, mould 14 up and down) be wholely set.In addition, heater 50 can be not yet to mould 10(cylindrical mold 12, mould 14 up and down) axial integral body heat, but in the axial direction partly to mould 10(cylindrical mold 12, mould 14 up and down) heat.
(variation of the manufacture method of rubber rollers)
In above-mentioned heating process, the heating temp of the 52A of heating portion, 52B, 52C that makes heater 50 is different and mould 10 is heated, but also can with the external diameter of the rubber rollers that will obtain accordingly, the heating temp that makes the 52A of heating portion, 52B, 52C is certain and mould 10 is heated.
(variation of the method for turning back of pitch tube 13)
In the above-mentioned method of turning back, protuberance 11 with the both ends of pitch tube 13 is turned back, but be not limited thereto, projection 11 with this end is turned back, and then the projection 11 with this other end is turned back.
The present invention is not limited to above-mentioned embodiment, can carry out various distortion, change and improvement.For example, also the above-mentioned variation that illustrates suitably can be carried out multiple combination and constitute.
Claims (3)
1. the method for turning back of a pitch tube is characterized in that, has following operation:
Insert operation, in this operation, so that the mode that protrude from the two ends of cylindrical mold at the both ends of pitch tube, the inside of pitch tube being inserted this cylindrical mold;
The distortion operation in this operation, radially applies uniform power from the inside of above-mentioned pitch tube, and makes at least axially Outboard Sections plastic deformation from the projection that above-mentioned cylindrical mold is protruded of above-mentioned pitch tube on circumferential whole circumference; And
The operation of turning back, in this operation, make the inner peripheral surface of part of the plastic deformation of above-mentioned pitch tube, contact with the outer peripheral face of internal diameter greater than the cylinder part of the external diameter of above-mentioned cylindrical mold, above-mentioned cylinder part is moved towards the axial centre of above-mentioned cylindrical mold, the above-mentioned projection of the above-mentioned pitch tube outer peripheral face to above-mentioned cylindrical mold is turned back.
2. the method for turning back of pitch tube according to claim 1 is characterized in that, has following operation:
The 1st operation in this operation, makes the inner peripheral surface of part of plastic deformation at the both ends of above-mentioned pitch tube, contacts with the outer peripheral face of internal diameter greater than the cylinder part of the external diameter of above-mentioned cylindrical mold;
The 2nd operation, in this operation, the above-mentioned cylinder part that makes a side moves towards the axial centre of above-mentioned cylindrical mold, and the above-mentioned projection of an end of the above-mentioned pitch tube outer peripheral face to an end of above-mentioned cylindrical mold is turned back;
The 3rd operation, this operation after above-mentioned the 2nd operation, the above-mentioned cylinder part that makes opposite side towards above-mentioned cylindrical mold axially outside side shifting, then near the cylinder part of above-mentioned opposite side, with above-mentioned pitch tube by being pressed on the above-mentioned cylindrical mold; And
The 4th operation, this operation are after above-mentioned the 3rd operation, and the above-mentioned cylinder part that makes opposite side moves towards the axial centre of above-mentioned cylindrical mold, and the above-mentioned projection of the other end of the above-mentioned pitch tube outer peripheral face to the other end of above-mentioned cylindrical mold is turned back.
3. the manufacture method of a pitch tube coated roller is characterized in that, has following operation:
The operation of turning back in this operation, is utilized the method for turning back of claim 1 or 2 described pitch tubes, and the above-mentioned projection at the both ends of the above-mentioned pitch tube outer peripheral face to the two ends of above-mentioned cylindrical mold is turned back;
Installation procedure in this operation, will and insert the end mould that the core bar in this pitch tube keeps to the above-mentioned pitch tube after turning back in the two ends of above-mentioned cylindrical mold, install to the two ends of above-mentioned cylindrical mold;
Injection process in this operation, injects elastomeric material from above-mentioned end mould; And
Vulcanization process in this operation, heats above-mentioned cylindrical mold and above-mentioned end mould, makes above-mentioned elastomeric material sulfuration.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-026540 | 2012-02-09 | ||
| JP2012026540A JP5019005B1 (en) | 2012-02-09 | 2012-02-09 | Resin tube folding method, resin tube coating roll manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103240816A true CN103240816A (en) | 2013-08-14 |
| CN103240816B CN103240816B (en) | 2017-05-03 |
Family
ID=46980465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210526216.2A Active CN103240816B (en) | 2012-02-09 | 2012-12-07 | Folding method of resin pipe, and manufacturing method of resin pipe coated roller |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5019005B1 (en) |
| CN (1) | CN103240816B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553899A (en) * | 2015-09-25 | 2017-04-05 | 富士施乐株式会社 | Holding meanss, conveyer device, carrying method |
| CN106626335A (en) * | 2015-10-30 | 2017-05-10 | 佳能株式会社 | Method for fixing resin tube to die and manufacturing method for resin-tube covered roller |
| CN107825693A (en) * | 2017-11-29 | 2018-03-23 | 王小刚 | A kind of plastic tube mouth of pipe extension fixture and application method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442478A (en) * | 2021-06-29 | 2021-09-28 | 上海伽材新材料科技有限公司 | Forming process of silica gel formed on surface of composite material thin-wall special-shaped pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329714B1 (en) * | 1969-09-16 | 1978-08-22 | ||
| CN1030047A (en) * | 1987-05-29 | 1989-01-04 | 三菱树脂株式会社 | Manufacturing is through the method for the concrete reinforced pipe of lining |
| JPH03215021A (en) * | 1990-01-19 | 1991-09-20 | Showa Electric Wire & Cable Co Ltd | Folding back device of tube for roller |
| JPH05450A (en) * | 1991-06-21 | 1993-01-08 | Sekisui Chem Co Ltd | Manufacture of faucet section for metal tube and composite tube |
| JPH05212784A (en) * | 1992-01-31 | 1993-08-24 | Showa Electric Wire & Cable Co Ltd | Tube folding back device |
| JPH06106610A (en) * | 1992-09-28 | 1994-04-19 | Showa Electric Wire & Cable Co Ltd | Tube folding method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104314A (en) * | 1983-11-11 | 1985-06-08 | Mitsubishi Plastics Ind Ltd | Mold for folding end of synthetic tube |
| JP3140815B2 (en) * | 1991-10-29 | 2001-03-05 | 昭和電線電纜株式会社 | Tube roller manufacturing equipment |
| JP3207483B2 (en) * | 1992-02-13 | 2001-09-10 | 昭和電線電纜株式会社 | Tube folding device |
| JP2000301610A (en) * | 1999-04-16 | 2000-10-31 | Suzuka Fuji Xerox Co Ltd | Method and apparatus for mounting opening of resin tube |
| JP4819439B2 (en) * | 2005-08-29 | 2011-11-24 | 株式会社イノアックコーポレーション | Method for manufacturing foamed elastic roller and molding die for foamed elastic roller |
-
2012
- 2012-02-09 JP JP2012026540A patent/JP5019005B1/en not_active Expired - Fee Related
- 2012-12-07 CN CN201210526216.2A patent/CN103240816B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329714B1 (en) * | 1969-09-16 | 1978-08-22 | ||
| CN1030047A (en) * | 1987-05-29 | 1989-01-04 | 三菱树脂株式会社 | Manufacturing is through the method for the concrete reinforced pipe of lining |
| JPH03215021A (en) * | 1990-01-19 | 1991-09-20 | Showa Electric Wire & Cable Co Ltd | Folding back device of tube for roller |
| JPH05450A (en) * | 1991-06-21 | 1993-01-08 | Sekisui Chem Co Ltd | Manufacture of faucet section for metal tube and composite tube |
| JPH05212784A (en) * | 1992-01-31 | 1993-08-24 | Showa Electric Wire & Cable Co Ltd | Tube folding back device |
| JPH06106610A (en) * | 1992-09-28 | 1994-04-19 | Showa Electric Wire & Cable Co Ltd | Tube folding method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553899A (en) * | 2015-09-25 | 2017-04-05 | 富士施乐株式会社 | Holding meanss, conveyer device, carrying method |
| CN106626335A (en) * | 2015-10-30 | 2017-05-10 | 佳能株式会社 | Method for fixing resin tube to die and manufacturing method for resin-tube covered roller |
| US10189233B2 (en) | 2015-10-30 | 2019-01-29 | Canon Kabushiki Kaisha | Method for fixing resin tube to die and manufacturing method for resin-tube covered roller |
| CN107825693A (en) * | 2017-11-29 | 2018-03-23 | 王小刚 | A kind of plastic tube mouth of pipe extension fixture and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013163285A (en) | 2013-08-22 |
| JP5019005B1 (en) | 2012-09-05 |
| CN103240816B (en) | 2017-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103240816A (en) | Folding method of resin pipe, and manufacturing method of resin pipe coated roller | |
| CN102958671B (en) | For the method for the heating of the half-finished extrusion device of production control elastomer | |
| CN107206666B (en) | The manufacturing method of charge pipe | |
| CN102927276B (en) | Hollow rubber pad and preparation method thereof | |
| CN103635736A (en) | High-pressure gas container and production method for high-pressure gas container | |
| CN101204723A (en) | Method of, and apparatus for, manufacturing metallic bellows | |
| CN102720906B (en) | Plastic-filling construction method and tooling for broken pipe ends welded with flanges on lining-plastic composite steel pipe | |
| CN103240815B (en) | The manufacture device of rubber rollers and the manufacture method of rubber rollers | |
| CN102873804B (en) | The manufacture method of rubber rollers | |
| CN111438254B (en) | Hot air expansion-active air cooling forming device and forming method for closed-section integral pipe fitting | |
| CN104646962B (en) | The preparation method of oil return pipe of supercharger | |
| CN102788219A (en) | Electric smelting plastic pipe fitting for plastic pipeline connection and producing method of electric smelting plastic pipe fitting | |
| CN102527788A (en) | Variable-section pipe fitting bending method and hydraulic bending device | |
| CN104481449B (en) | A kind of combined type packing element and preparation method thereof | |
| JP2003340824A (en) | Method for vulcanizing and molding tire, and mold for molding tire | |
| JP5756618B2 (en) | Manufacturing method of purification equipment for automobile | |
| CN101863124B (en) | Method and equipment for welding plastic tube network | |
| EP3078467A1 (en) | Tire preheating apparatus, tire vulcanization system, tire preheating method, and tire manufacturing method | |
| CN102123841B (en) | Low torque shaft and method of construction thereof | |
| CN103302784A (en) | Producing device for rubber roller and producing method of rubber roller | |
| EP2677154B1 (en) | Line system for a fluid, method of manufacturing a line system and apparatus for manufacturing a line system | |
| JP2016215411A (en) | Production method and device of bladder for tire vulcanization | |
| EP4023407A1 (en) | Method for manufacturing resin pipe with fixing member, device for manufacturing resin pipe with fixing member, and resin pipe with fixing member | |
| KR20120131642A (en) | Manufacturing method for air pressure forming tefron bellows | |
| JP3932179B2 (en) | Tire vulcanizing method and tire vulcanizing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo Patentee after: Fuji film business innovation Co.,Ltd. Address before: Tokyo Patentee before: Fuji Xerox Co.,Ltd. |