WO2014190605A1 - 轮胎直压成型电磁感应加热硫化方法及其专用内模 - Google Patents

轮胎直压成型电磁感应加热硫化方法及其专用内模 Download PDF

Info

Publication number
WO2014190605A1
WO2014190605A1 PCT/CN2013/080086 CN2013080086W WO2014190605A1 WO 2014190605 A1 WO2014190605 A1 WO 2014190605A1 CN 2013080086 W CN2013080086 W CN 2013080086W WO 2014190605 A1 WO2014190605 A1 WO 2014190605A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
narrow
wide
tire
electromagnetic
Prior art date
Application number
PCT/CN2013/080086
Other languages
English (en)
French (fr)
Inventor
杨卫民
张金云
丁玉华
张涛
焦志伟
刘肖英
阎华�
Original Assignee
三角轮胎股份有限公司
北京化工大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三角轮胎股份有限公司, 北京化工大学 filed Critical 三角轮胎股份有限公司
Priority to US14/432,056 priority Critical patent/US9751271B2/en
Publication of WO2014190605A1 publication Critical patent/WO2014190605A1/zh
Priority to US15/635,696 priority patent/US9827725B2/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0605—Vulcanising presses characterised by moulds integral with the presses having radially movable sectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0662—Accessories, details or auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0662—Accessories, details or auxiliary operations
    • B29D2030/0666—Heating by using fluids
    • B29D2030/0674—Heating by using non-fluid means, e.g. electrical heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0662—Accessories, details or auxiliary operations
    • B29D2030/0675—Controlling the vulcanization processes
    • B29D2030/0677—Controlling temperature differences

Definitions

  • the invention relates to the field of tire production technology and equipment, and in particular relates to a tire direct compression molding electromagnetic induction heating vulcanization method and a special inner mold thereof.
  • vulcanization is a key process in the manufacture of tires.
  • the current method uses a vulcanized capsule and an external mold to apply a high-strength vulcanization pressure to the green tire, and the high temperature contained in the capsule and the outer mold Steam (or superheated water) transfers heat to the green tire. Under this hot pressing, a chemical cross-linking reaction occurs between the green rubber compound and the vulcanizing agent, ultimately giving the finished tire good mechanical properties and pattern.
  • the capsule vulcanization process is widely used due to high heat transfer efficiency, but the process still has some defects, such as:
  • the capsule When the capsule is used, it often causes problems such as incomplete expansion or structural asymmetry due to viscous glue and unreasonable size design, resulting in uneven quality of the finished tire. In addition, it is easy to be affected by the processing precision and molding precision of the semi-finished rubber parts. The distribution of the mass is uneven, and the capsule is a flexible body. The pressure it can provide is low, and it is impossible to force the tire rubber to be evenly distributed during the vulcanization process. The uneven quality seriously affects the dynamic balance and uniformity of the finished tire. Therefore, most of the tires manufactured by the current vulcanization method need to be weighted;
  • the vulcanization process requires a large amount of steam and superheated water, and these heat transfer media are actually absorbed and utilized by the tires, and most of them are consumed in an ineffective pipeline cycle, and energy waste is severe;
  • the shoulders and bead of the tire are hard to vulcanize. When vulcanizing, it requires more heat than the thinner part of the tire crown and sidewall to achieve the flattening period of vulcanization. Therefore, the ideal tire curing condition is The temperature of the heat source corresponding to the shoulder and the bead is high, and the temperature of the heat source corresponding to the sidewall and the crown is low, but in the actual vulcanization production, the saturated steam passes through the vulcanization capsule and the heat is evenly transmitted to the green tire. There is no difference in heat. When the rubber in the shoulder and bead area reaches the flattening stage, the rubber at the crown and sidewall is often severely sulfurized, which greatly reduces the performance of the tire;
  • Capsules are consumables in the production of tires. On average, one capsule can only cure about 260 tires, and its use cost is high.
  • the steam/nitrogen vulcanization technology developed based on the principle of “equal pressure and temperature change” in recent years has obvious effects in terms of energy saving and vulcanization efficiency, but it also brings new problems.
  • the high temperature steam will be Local condensation and deposition on the bottom of the capsule, resulting in different temperatures on the upper and lower sides of the capsule, resulting in uneven heat transfer, large temperature difference between the upper and lower sidewalls of the tire, and reduced tire vulcanization quality, which cannot meet the high standard requirements for high-performance tire manufacturing, although each tire
  • the plant has alleviated the uneven heat transfer to some extent by optimizing the structure of the jet-hole on the central mechanism, but this problem has not been fundamentally solved.
  • the object of the present invention is to provide a method for directly compressing an electromagnetic induction heating vulcanization of a tire inner and outer mold, which has low energy consumption, short vulcanization period, and high product precision, in view of the problems in the above tire vulcanization process.
  • the utility model provides an electromagnetic induction heating vulcanization inner mold which is stable in structure, safe in operation, and requires no frequent replacement of the inner and outer molds of the tire.
  • the technical solution adopted by the invention to solve the technical problem thereof is: a method for electromagnetic induction heating vulcanization of a tire direct compression molding, using a telescopic metal inner mold on a center mechanism of a tire setting vulcanizer, the inner mold is a wide drum, a narrow drum
  • the expansion and contraction mechanism and the bulging ribs which are connected with the wide drum and the narrow bulge and support, wherein the wide bulge and the narrow bulge are alternately arranged in the circumferential direction, and can be driven by the central mechanism piston rod
  • the shrinking mechanism realizes radial expansion and contraction, and the longitudinal outer contour curve of each of the wide drum and the narrow drum which constitutes the drum is consistent with the inner contour curve of the finished tire; when vulcanized, the inner mold is in an expanded state, wide The drum and the narrow drum are closely fitted to form a complete circle in the shape.
  • the outer diameter of the circle is equal to the inner diameter of the finished tire.
  • the wide drum and the narrow drum of the inner mold are asynchronously contracted, and finally all the narrow drums
  • the tile shrinks to within the inner circle, and the wide bulge shrinks to within the outer circle, wherein the inner diameter ⁇ outer diameter ⁇ the diameter of the finished tire sub-port; a cavity having a certain depth in the middle of the surface of the bulge in contact with the rib plate Cavity
  • the phase change material is stored; the inner drum of the inner mold is heated by electromagnetic induction heating, and two sets of electromagnetic coils having the same inductance are installed on the back of each drum, and the electromagnetic coils are symmetrically distributed on the left and right sides of the longitudinal center line of the drum
  • the winding direction is along the longitudinal direction of the drum; during operation, the electromagnetic coil under the action of the high-frequency current generates a magnetic field line to form a high-frequency alternating magnetic field surrounded by the longitudinal direction of the drum, and the drum of the inner mold generates
  • the alternating magnetic field strength at the upper and lower sides of the drum is the same, the eddy current is generated in the same magnitude and the temperature rise is consistent; when the middle of the drum is After heating to the required temperature, the internal phase change material absorbs and stores excess heat, so that the central temperature does not change any more, and the temperature of the upper and lower sides of the drum continues to rise, so that the temperature of the middle and the sides of the drum is different. In order to meet the heat requirements of vulcanization in different parts of the tire, the overall vulcanization quality of the tire is guaranteed.
  • a lateral groove is formed on the surface of the rib plate which is attached to the drum, and the groove is symmetrically distributed uniformly on the left and right sides of the transverse center line of the drum, and electromagnetic coil is embedded in each groove.
  • the electromagnetic inductance of all the electromagnetic coils on each drum is the same; when working, the electromagnetic coil generates a high-frequency magnetic field along the lateral direction of the drum, and the drum of the inner mold generates an eddy current by cutting the surface of the magnetic line, and the thermal effect of the eddy current makes the drum The temperature of the tile rises rapidly. Since the coils on both sides of the ribbed plate have the same structure, the high-frequency magnetic field generated is the same, and the temperature rise on both sides of the drum is uniform.
  • the utility model relates to a special inner mold used for the above-mentioned tire direct compression molding electromagnetic induction heating vulcanization method, which is composed of an inner mold and a heating device.
  • the inner mold comprises an expansion and contraction mechanism and a transmission mechanism, and the expansion and contraction mechanism is composed of a narrow flat expansion and contraction mechanism and a wide expansion.
  • the narrowing mechanism comprises a narrow bulge, a narrow rib plate, a narrow watt upper link, a narrow watt lower link, a narrow watt short link
  • the wide watt expansion and contraction mechanism comprises a wide bulge and a wide rib Plate, wide-wafer upper connecting rod, wide-wafer lower connecting rod, wide-wafer short connecting rod
  • transmission mechanism includes base, inner sleeve, outer sleeve, shaft end bearing ring, narrow drum and narrow rib plate are fixed by thread Connecting, the narrow rib plates are respectively connected with one end of the narrow upper support link and the narrow lower support rod through the hinge support, and the other end of the narrow upper support link is hinged on the shaft end support ring, and the narrow bottom lower link is another One end is connected to the hinge seat fixed on the inner sleeve, one end of the narrow short link is hinged to the central part of the narrow lower link, and the other end is connected with the hinge seat fixed on the base, the wide drum and the width
  • the electromagnetic heater is composed of an electromagnetic coil, a "
  • the board is bonded and wrapped around two "
  • the two sets of electromagnetic coils are connected in series by a long wire, and then connected to the frequency conversion control circuit.
  • " cores can also be connected in parallel and respectively connected with the frequency conversion control circuit.
  • the winding directions of the two sets of electromagnetic coils are the same and the inductance is the same, and the inductance of the electromagnetic coil on the wide drum is greater than the inductance of the electromagnetic coil on the narrow drum.
  • the structure of the heating device is either a " ⁇ "-shaped magnetic core, an electromagnetic coil and a heat insulating layer, and a certain number of lateral grooves are formed on the surface of the rib plate which is attached to the drum, and the groove is symmetrically distributed evenly on the transverse center line of the drum
  • a " ⁇ "-shaped magnetic core is embedded in the groove, the two poles of the magnetic core are directed to the drum, and one pole of each core is placed with an electromagnetic coil, and the electromagnetic coil on each drum is connected in series by a long wire.
  • the inductance and winding direction of the electromagnetic coil on each drum are the same, and the inductance of the electromagnetic coil on the wide drum The amount is greater than the inductance of the electromagnetic coil on the narrow drum, and a thermal insulation layer is laid between the rib plate and the contact surface of the drum.
  • the cavity surface of the fascia contacting the rib is provided with a cavity, and the cavity contains a phase change material.
  • a copper sleeve is embedded on the inner surface of the base and the outer sleeve.
  • thermocouple is placed at the center and both ends of the wide drum or narrow drum that make up the drum.
  • a high temperature melt pressure sensor is installed inside the center of the wide drum or narrow drum that forms the drum.
  • the wide drum or narrow drum that makes up the drum is made of steel.
  • the bulge and the outer casing are made of a non-magnetic metal material.
  • the invention has the beneficial effects that: (1) replacing the vulcanized capsule on the central mechanism of the existing tire setting vulcanizing machine with the squeezable rigid metal inner mold, thereby fundamentally solving the incomplete expansion of the capsule in the existing vulcanization process, and the structure is not Symmetry and the like, the vulcanization pressure which the method of the invention can provide is 30%-40% higher than that of the capsule vulcanization form, can significantly improve the flow distribution of the rubber compound in the molten state, thereby improving the uniformity and dynamic balance of the finished tire; (2) When the inner cavity of the green tire is heated, it does not need to consume steam, superheated water and the like, but electromagnetic induction heating is adopted, which greatly saves energy; (3) the inner mold in the method of the invention provides for the green tire vulcanization The pressure and heating device provide temperature conditions, so that the pressure and temperature are independently adjusted independently, the curing cycle is shortened, and the production efficiency is obviously improved; (4) The phase change material contained in the inner mold can be vulcanized according to different parts of
  • the heat needs to be controlled in stages on the temperature of the drum, so as to ensure that the hardened vulcanized part of the green tire reaches the flattening period of the vulcanization, and prevents the vulcanized part from passing through. Sulfur, therefore, the tire vulcanization quality is improved; (5)
  • the tire internal and external mold direct compression molding electromagnetic induction heating vulcanization equipment of the invention has stable structure, safe operation, no frequent replacement, and can be used for a long time in vulcanization production, and solves the original process. The problem of high cost of using capsules.
  • FIG. 1 is a schematic view showing the clamping of a vulcanized tire of an electromagnetic induction heating vulcanization apparatus which is directly formed by the inner and outer molds of the tire of the present invention
  • FIG. 2 is a cross-sectional view showing the expansion of the inner mold when the heating device A of the electromagnetic induction heating vulcanization apparatus for the inner and outer molds of the tire of the present invention is used.
  • Fig. 3 is a partial enlarged view of Fig. 2;
  • FIG. 4 is a contraction cross-sectional view showing the inner mold of the tire inner and outer mold direct compression molding electromagnetic induction heating vulcanization apparatus using the heating device A.
  • Fig. 5 is a perspective view showing the expansion of the inner and outer molds of the present invention by the direct compression molding of the electromagnetic induction heating vulcanization apparatus when the heating device A is used.
  • Fig. 6 is a partial enlarged view of Fig. 5;
  • Fig. 7 is a partial structural schematic view showing the use of the heating device A for the direct-pressure molding electromagnetic induction heating vulcanization apparatus for the inner and outer molds of the tire of the present invention.
  • FIG. 8 is a schematic view showing the structure of a ribbed rib plate when the heating device B is used in the direct-pressure forming electromagnetic induction heating vulcanization apparatus of the inner and outer molds of the present invention.
  • Figure 9 is a partial cross-sectional view showing the heating device B of the direct-pressure molding electromagnetic induction heating vulcanization apparatus for the inner and outer molds of the tire of the present invention.
  • Fig. 10 is a schematic view showing the structure of a " ⁇ "-shaped magnetic core in which a solenoid coil is wound in a heating device B of a direct-pressure forming electromagnetic induction heating vulcanization apparatus for a tire inner and outer mold.
  • Fig. 11 is a schematic view showing the structure of a wide drum of a direct compression molding electromagnetic induction heating vulcanization apparatus for a tire inner and outer mold according to the present invention.
  • the method of electromagnetic induction heating vulcanization of the inner and outer molds of the tire is to replace the vulcanization capsule on the central mechanism of the tire vulcanizer with the inner metal mold, and the inner mold is mainly composed of n blocks wide.
  • Drum 10 n-narrow bulge 1 (n is an integer not less than 5, n is 6 in this embodiment), expansion and contraction mechanism and a bulge plate fixedly connected with the bulge and supporting, wherein the width
  • the drum 10 and the narrow drum 1 are alternately arranged in the circumferential direction, and the expansion and contraction mechanism can be driven by the central mechanism piston rod 17 to drive the expansion and contraction mechanism, and the longitudinal outer contour curve of each drum is matched with the finished tire.
  • the inner contour curve is consistent.
  • the inner mold When vulcanized, the inner mold is in an expanded state, and the wide drum 10 and the narrow drum 1 are closely fitted to form a complete circle on the outer shape, and the outer diameter of the circle is equal to the inner diameter of the finished tire; when the tire is unloaded, the inner mold is wide
  • the drum 10 and the narrow drum 1 are asynchronously contracted, and finally all the narrow drums 1 are contracted to the inner circle, and the wide drum 10 is contracted to the outer circle, wherein the inner diameter ⁇ outer diameter ⁇ the diameter of the finished tire sub-port.
  • a cavity having a certain depth is formed in the middle of the surface of the bulge in contact with the rib plate, and the phase change material 22 is potted in the cavity.
  • the inner drum of the inner mold is heated by electromagnetic induction heating, and two sets of electromagnetic coils a26 having the same inductance are mounted on the back of each drum, and the electromagnetic coil a26 is symmetrically distributed in the longitudinal direction of the drum.
  • the left and right sides of the center line, the winding direction is along the longitudinal direction of the drum.
  • the electromagnetic coil a26 under the action of high-frequency current generates a magnetic field line to form a high-frequency alternating magnetic field that is circumferentially surrounded by the drum.
  • the drum of the inner mold generates an eddy current by cutting the surface of the magnetic field line, and the thermal effect of the eddy current causes the temperature of the drum to rise rapidly.
  • the internal phase change material 22 absorbs and stores excess heat, so that the central temperature does not change any more, and the temperature of the upper and lower sides of the bulge continues to rise, so that the middle of the bulge Different from the temperature on both sides, to meet the heat needs of different parts of the tire during vulcanization, to ensure the overall vulcanization quality of the tire.
  • the embodiment has the same structure as the inner mold of the tire vulcanization method of the present invention, except that the mounting structure of the electromagnetic coil is such that a certain amount is formed on the surface of the rib which is attached to the drum.
  • the lateral grooves are symmetrically distributed uniformly on the left and right sides of the transverse centerline of the drum, and each of the grooves is embedded with an electromagnetic coil b29, and the inductance of all the electromagnetic coils b29 on each of the drums is the same.
  • the electromagnetic coil b29 generates magnetic lines of force to form a high-frequency magnetic field that is circumferentially surrounded by the drum.
  • the drum of the inner mold generates an eddy current by cutting the surface of the magnetic line of force, and the thermal effect of the eddy current causes the temperature of the drum to rise rapidly due to the rib of the drum.
  • the coils on both sides have the same structure, so the high-frequency magnetic fields generated are the same, and the temperature rises on both sides of the drum are the same.
  • the tire internal and external mold direct compression molding electromagnetic induction heating vulcanization apparatus is mainly composed of an inner mold and a heating device A.
  • the inner mold comprises an expansion and contraction mechanism and a transmission mechanism.
  • the expansion and contraction mechanism is mainly composed of a narrow tile expansion and contraction mechanism and a wide tile expansion and contraction mechanism.
  • the narrow tile expansion and contraction mechanism comprises a narrow drum tile, a narrow tile plate 20, and a narrow tile upper link. 2.
  • the narrow-wafer lower connecting rod 19 and the narrow-wafer short connecting rod 18, the wide-watt expansion and contraction mechanism comprises a wide drum 10, a wide-wall rib 12, a wide-wafer upper connecting rod 9, a wide-wafer lower connecting rod 13, and a wide-wafer short
  • the connecting rod 14; the transmission mechanism comprises a base 16, an inner sleeve 3, an outer sleeve 4, and a shaft end bearing ring 7.
  • the narrow bulge 1 and the narrow rib 20 are fixedly connected by screws, and the narrow rib 20 is respectively connected to one end of the narrow upper link 2 and the narrow lower link 19 through the hinge support, and the narrow upper link 2 One end is hinged to the shaft end support ring 7, and the other end of the narrow bottom lower link 19 is connected to the hinge seat fixed to the inner sleeve 3.
  • the end of the narrow short link 18 and the narrow lower link 19 The central portion is hinged, the other end is connected to a hinge support fixed to the base 16, the wide drum 10 and the wide rib 12 are fixedly connected by screws, and the wide rib 12 is respectively passed through the hinge support and the wide upper support 9
  • the wide-wafer lower connecting rod 13 is connected at one end, and the other ends of the wide-wafer upper connecting rod 9 and the wide-wafer lower connecting rod 13 are connected with the hinged seat fixed on the outer sleeve 4, and the wide-wafer short connecting rod 14 is end-width and wide-watted.
  • the central portion of the lower link 13 is hinged, and the other end is connected to a hinge seat fixed to the base 16.
  • the base 16, the inner sleeve 3, and the shaft end support ring 7 are sleeved on the central mechanism piston rod 17, and the positioning pin 8 will
  • the shaft end support ring 7 is fixed to the upper end of the inner sleeve 3, and the inner sleeve 3 is fixed to the piston rod 17 through the clamp ring 5 and the connecting bolt 6.
  • the outer sleeve 3 is external sleeve 4 and the outer sleeve 4
  • a plurality of guiding grooves uniformly distributed in the circumferential direction are opened, and the hinged seat on the inner sleeve 3 is located in the guiding groove and can slide up and down.
  • the base 16 remains stationary, and the piston rod 17 moves up together with the inner sleeve 3 and the shaft end support ring 7, through the narrow upper rail link 2, and the narrow lower flange 19 drives the narrow drum 1
  • Radial contraction when the upper end surface of the hinge support on the inner sleeve 3 touches the upper end surface of the guide groove on the outer sleeve 4, the outer sleeve 4 starts to move upward, passes through the wide upper support rod 9, and the wide lower link 13
  • the wide drum 10 is driven to radially contract, that is, the wide drum 10 and the narrow drum 1 are asynchronously operated when the inner mold is contracted.
  • the base 16 remains stationary, and the piston rod 17 drives the inner sleeve 3 and the shaft end support ring 7 to move downward, while the outer sleeve 4 follows the inner sleeve 3 to fall synchronously, when the outer sleeve 4 is under the outer sleeve 4
  • the end surface is in contact with the upper end surface of the base 16, the wide drum 10 is inflated in position, and the piston rod 17 drives the inner sleeve 3 to continue to move downward.
  • the narrow drum 1 is inflated into position.
  • a cavity having a depth of 2 to 5 mm is opened in the middle of the surface of the pad which is in contact with the rib.
  • the cavity is filled with a phase change material 22 such as a solid inorganic salt having a phase transition temperature of 150 °C.
  • All drums are made of steel with high iron content, such as 45 steel.
  • a 2 mm thick copper sleeve 15 is embedded in the inner surface of the base 16 and the outer sleeve 4 to prevent the temperature from being too high in the vulcanization process.
  • the bulge plate is made of a non-magnetic metal material such as stainless steel 304.
  • a thermocouple 21 is installed at the inner center and both ends of the drum to monitor the surface temperature of the drum in real time.
  • a high temperature melt pressure sensor 11 is installed inside one of the drum center to measure the mold and the green tire pressure in real time.
  • the heating device A includes two electromagnetic heaters having the same structure.
  • the electromagnetic heater is mainly composed of an electromagnetic coil a26, a "
  • the electromagnetic coil a26 is wound around the "
  • " cores 23 are formed by connecting a long wire in series, and then connected to the inverter control circuit, or may be connected in parallel, and respectively connected to the control circuit.
  • the winding directions of the two sets of electromagnetic coils a26 are the same and the inductance is the same. Since the volume of the wide drum 10 is larger than the volume of the narrow drum 1, the inductance of the electromagnetic coil a26 on the wide drum 10 is larger than that of the narrow drum 1 on the electromagnetic coil a26.
  • the inductance is different from 15 ⁇ H to 25 ⁇ H.
  • the electromagnetic coil a26 under the action of the high-frequency current generates a high-frequency alternating magnetic field surrounded by the magnetic field lines along the longitudinal direction of the drum.
  • the drum of the inner mold generates an eddy current by cutting the surface of the magnetic field line, and the thermal effect of the eddy current causes the temperature of the drum to rise rapidly. Therefore, the green tire 33 is heated, and since the alternating magnetic field strengths at the upper and lower sides of the drum are the same, the eddy currents generated are the same in size and the temperature rise is uniform.
  • the internal phase change material 22 absorbs and stores excess heat, so that the central temperature does not change any more, and the temperature on the upper and lower sides of the bulge continues to rise, so that the middle of the bulge is The temperature on both sides is different to meet the heat requirement of vulcanization in different parts of the tire to ensure the overall vulcanization quality of the tire.
  • the direct compression molding electromagnetic induction heating vulcanization apparatus for the inner and outer molds of the tire mainly comprises an inner mold and a heating device B.
  • the inner mold has the same structure as the inner mold in the inner mold embodiment 1 of the tire vulcanization of the present invention
  • the heating device B includes a " ⁇ "-shaped magnetic core 28, an electromagnetic coil b29, and a heat insulating layer b30.
  • a certain number of lateral grooves (three in the present embodiment) are opened on the surface of the ribs that are attached to the drum, and the grooves are symmetrically distributed on the left and right sides of the transverse center line of the drum, and the magnetic shape is “ ⁇ ”.
  • the core 28 is embedded in the trench, the two poles of the " ⁇ " shaped core 28 are directed to the drum, and the " ⁇ " shaped core 28 is made of a ferrite or microcrystalline alloy material having a high magnetic permeability.
  • One pole of each " ⁇ "-shaped magnetic core 28 is placed with an electromagnetic coil b29, and the electromagnetic coil b29 on each of the drums is formed by connecting a long wire in series, and then connected to the frequency conversion control circuit or in parallel. Connected to the control circuit separately.
  • the inductance and the winding direction of the electromagnetic coil b29 on each of the drums are the same.
  • the inductance of the electromagnetic coil b29 on the wide drum 10 is larger than that of the narrow drum 1
  • the inductance of the upper electromagnetic coil b29 differs by 15 ⁇ H to 25 ⁇ H.
  • An insulating layer b30 is laid between the rib plate and the contact surface of the drum, and the material is asbestos. During operation, the electromagnetic coil b29 generates a high-frequency magnetic field in which the magnetic lines of force are circumferentially surrounded by the drum.
  • the drum of the inner mold generates an eddy current by cutting the surface of the magnetic field line, and the thermal effect of the eddy current causes the temperature of the drum to rise rapidly, due to the fact that the drum is located on the rib
  • the coils on the side have the same structure, so the high-frequency magnetic fields generated are the same, and the temperature rises on both sides of the drum are the same.
  • Tyre The inner mold is in a contracted state, and the base 16 is at a certain height from the lower steel ring 34 to ensure that the inner drum does not interfere with the lower steel ring 34 when the inner mold expands and contracts, and the mechanical blank is used to grasp the green tire 33 to be vulcanized. From this, keep the centerline of the green tire 33 aligned with the centerline of the center mechanism.
  • 255/30R22 was selected as the test sample tire specification, and the B-type center mechanism of the 48-inch tire hydraulic setting vulcanizer was modified, and the vulcanized capsule was replaced by the tire inner and outer mold direct compression molding electromagnetic induction heating vulcanization of the tire vulcanization apparatus of the present invention.
  • the equipment in which the connecting rods of the inner mold are made of ultra high strength alloy steel.
  • the tire is vulcanized, and the appearance quality of the vulcanized tire is tested.
  • the outer cord of the bead is not found in the tire, and the bead width is narrow and the toe is Out of the side, the surface of the tire has uneven unequal quality defects.
  • the interferometer tire tester is used to check whether the inner layer of the finished tire contains air bubbles.
  • Fig. a is a detection image of the crown region
  • Fig. b is a detection image of the sidewall region.
  • the result shows that the inner and outer molds of the present invention are directly formed by electromagnetic induction heating.
  • the rubber parts of the tire manufactured by the vulcanization method are closely bonded to each other.
  • the inventive tires 1 to 4 are manufactured by the direct induction molding of the inner and outer molds of the tire by the electromagnetic induction heating vulcanization method, and the comparative tires 1 are manufactured by the conventional capsule vulcanization method, and the vulcanization process parameters of each tire (including the vulcanization pressure and the vulcanization internal temperature) ) are not the same.
  • test sample tire was mounted on a homogenous test machine, and the difference between the maximum value and the minimum value of the free radius of the tire under no-load conditions was measured. The larger the value, the worse the uniformity.
  • test sample tire is mounted on the dynamic balance test machine to rotate the tire at a constant rotation speed, and the amount of runout of the sample tire relative to a reference plane perpendicular to the rotation axis of the test machine is measured.
  • the test sample tire is mounted on the drum test machine, and the tire is rotated at an initial speed of less than 230 km/h.
  • the rotation speed is increased by 10 km/h every ten minutes until the tire is delaminated, collapsed, cracked or carcass.
  • the test stops when there are defects such as abnormal deformation, and the values in the table are about high, indicating that the high speed is better.
  • the test sample tire is mounted on the drum test machine, so that the tire rotates at a load of 586.5 kg and a speed of 120 km/h, and the load is increased in stages during the rotation, and each stage is tested for a certain period of time, when the tire appears off
  • the test is stopped when defects such as layers, flower collapse, cracks, or abnormal deformation of the carcass are stopped, and the evaluation parameter is the sum of the detection times of all stages.
  • the vulcanization process parameters were set at a clamping force of 1000 Kn and a vulcanization internal temperature of 180 °C.
  • the temperature measurement of the tire in the vulcanization process is carried out.
  • the tire is manufactured by the direct compression molding electromagnetic induction heating vulcanization method of the tire inner and outer mold of the invention, and the vulcanization cycle is shortened by about 1 minute compared with the conventional capsule vulcanization method. .
  • the electromagnetic induction heating vulcanization method is adopted by direct compression molding of the inner and outer molds of the tire, and an average tire ensures that the inner temperature of the vulcanization consumes only about 1.1 degrees of electricity, and the energy saving effect is obvious compared with the conventional capsule vulcanization method.
  • Invention tire 1 Invention tire 2 Invention tire 3 Invention tire 4 Compare tire 1 Clamping force (KN) 500 800 850 1000 1000 Vulcanized internal temperature (°C) 180 180 180 180 175 Uniformity (mm) 11.94 10.84 8.24 5.13 10.26 Dynamic balance (mm) twenty three 18 12.7 8.4 17.9 High speed (km/h) 273 280 300 310 278 Durability (h) 48.2 50 51.5 54 49.6

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

一种轮胎直压成型电磁感应加热硫化方法及其专用内模。该内模由宽鼓瓦（10）、窄鼓瓦（1）、胀缩机构及与鼓瓦固连的鼓瓦筋板（12、20）组成，并可在中心机构活塞杆（17）驱动下实现径向胀缩，在鼓瓦表面中部开设一定深度的型腔，型腔内蓄含有相变材料（22），内模具上安装有电磁线圏（26、29）。工作时，内模具处于胀开状态，与外模具（31）配合共同对胎坯（33）施以高强度的硫化压力，同时高频电流作用下的电磁线圏（26、29）产生高频交变磁场，内模具鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，从而对胎坯（33）进行加热。当鼓瓦中部被加热到所需的温度，其内部的相变材料（22）吸收并储藏多余的热量，从而温度不再变化，而鼓瓦上下两侧温度继续升高，这样，鼓瓦中部与两侧温度不同，以适应轮胎不同部位硫化时的热量需要。

Description

轮胎直压成型电磁感应加热硫化方法及其专用内模
技术领域
本发明涉及轮胎生产技术及设备领域，详细地讲是一种轮胎直压成型电磁感应加热硫化方法及其专用内模。
背景技术
众所周知，硫化是轮胎生产制造中的一道关键工序，在这一过程中，现行方法是采用硫化胶囊与外模具配合对胎坯施以高强度的硫化压力，凭借胶囊及外模具内部蓄含的高温蒸汽（或过热水）向胎坯传递热量，在这种热压作用下胎坯胶料与硫化剂之间发生化学交联反应，最终赋予成品轮胎良好的力学性能及花纹图案。与早期的水胎定型硫化工艺相比，胶囊硫化工艺由于传热效率高而被广泛采用，但该工艺仍存在一些缺陷，如：
1.胶囊在使用时常因粘胶、尺寸设计不合理等原因出现膨胀不彻底或结构不对称等问题，导致成品轮胎质量不均匀，另外，因受半成品胶部件加工精度及成型精度影响胎坯易造成自身质量分布不均，而胶囊是柔性体，它所能提供的压力较低，无法迫使轮胎胶料在硫化过程中实现再均匀分布，质量不均严重影响成品轮胎的动平衡性及均匀性，因此采用现行硫化方法制造出的轮胎大多需要做配重；
2.硫化工序需要消耗大量的蒸汽和过热水，而这些传热介质实际被轮胎吸收利用的却很少，大部分消耗在无效的管路循环中，能源浪费严重；
3.采用蒸汽或过热水作为加热加压介质的另一缺点是温度和压力相互制约，无法实现单项自由调节，这就必须通过延长硫化时间来解决温度适宜而压力不足的问题，导致生产效率严重降低；
4.轮胎的胎肩及胎圈是较难硫化的部位，硫化时相比胎冠、胎侧等胶料层薄的部位需要更多的热量才能达到硫化平坦期，因此理想的轮胎硫化条件是胎肩、胎圈对应的热源温度高，而胎侧、胎冠所对应的热源温度低，但在实际硫化生产中，饱和蒸汽通入硫化胶囊后将热量均匀传导给胎坯，胎坯各处受热并无差异，当胎肩、胎圈部位的胶料达到硫化平坦期时，胎冠、胎侧处的胶料往往已严重过硫，这大大降低了轮胎的性能；
5.胶囊属于轮胎生产中的易耗件，平均一条胶囊只能硫化轮胎260条左右，其使用成本较高。
近年来发展起来的基于“等压变温”原理的蒸汽/氮气硫化技术，虽然在节能及提高硫化效率方面效果明显，但也带来了新的问题，在向胶囊内通入氮气后高温蒸汽会局部冷凝而沉积于胶囊底部，致使胶囊上下侧部位温度不同，从而引起传热不均，轮胎上下胎侧温差较大，轮胎硫化质量降低，无法满足高性能轮胎制造的高标准要求，虽然各轮胎厂通过优化中心机构上的喷气孔结构在一定程度上缓解了传热不均现象，但这一问题始终未能得到根本解决。
发明内容
本发明的目的在于针对上述轮胎硫化工艺中存在的问题，提供一种能源消耗少、硫化周期短、产品精度高的轮胎内外模直压成型电磁感应加热硫化方法。并提供一种结构稳固，运行安全，无需频繁更换的轮胎内外模直压成型电磁感应加热硫化内模。
本发明解决其技术问题所采用的技术方案是：一种轮胎直压成型电磁感应加热硫化方法，在轮胎定型硫化机中心机构上使用伸缩式金属内模，内模由宽鼓瓦、窄鼓瓦、胀缩机构及与宽鼓瓦、窄鼓瓦固连并起支撑作用的鼓瓦筋板组成，其中宽鼓瓦和窄鼓瓦沿周向相互交替排列，并可通过中心机构活塞杆驱动胀缩机构实现径向膨胀和收缩，组成鼓瓦的每块宽鼓瓦、窄鼓瓦各处的纵向外轮廓曲线都与成品轮胎的内轮廓曲线一致；硫化时，内模处于胀开状态，宽鼓瓦和窄鼓瓦紧密贴合，在外形上组成一个完整的圆，圆的外径等于成品轮胎的内径，卸胎时，内模的宽鼓瓦和窄鼓瓦异步收缩，最终所有窄鼓瓦收缩至内圆以内，宽鼓瓦收缩至外圆以内，其中，内圆直径＜外圆直径≤成品轮胎子口直径；在与鼓瓦筋板接触的鼓瓦表面中部开设一定深度的型腔，型腔内蓄含有相变材料；利用电磁感应加热方式对内模具的鼓瓦进行加热，每一块鼓瓦背面安装有两组电感量相同的电磁线圈，电磁线圈对称分布于鼓瓦纵向中心线的左右两侧，绕线方向沿鼓瓦纵向；工作时，高频电流作用下的电磁线圈产生磁力线形成沿鼓瓦纵向环绕的高频交变磁场，内模的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，从而对胎坯进行加热，由于鼓瓦上下两侧位置所处的交变磁场强度相同，因此产生的涡电流大小相同，温升一致；当鼓瓦中部被加热到所需的温度，其内部的相变材料吸收并储藏多余的热量，从而使中部温度不再变化，而鼓瓦上下两侧温度继续升高，这样，鼓瓦中部与两侧温度不同，以适应轮胎不同部位硫化时的热量需要，保证轮胎整体硫化质量。
本发明还可通过如下措施来实现：在与鼓瓦贴合的筋板表面开设横向沟槽，沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，每个沟槽内埋设电磁线圈，每块鼓瓦上的所有电磁线圈的电感量相同；工作时，电磁线圈产生磁力线沿鼓瓦横向环绕的高频磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，由于位于鼓瓦筋板两侧的线圈结构相同，因此产生的高频磁场相同，鼓瓦两侧温升一致。
一种用于前述轮胎直压成型电磁感应加热硫化方法的专用内模，由内模具和加热装置组成，内模具包括胀缩机构和传动机构，胀缩机构由窄瓦胀缩机构和宽瓦胀缩机构组成，窄瓦胀缩机构包括窄鼓瓦、窄瓦筋板、窄瓦上连杆、窄瓦下连杆、窄瓦短连杆，宽瓦胀缩机构包括宽鼓瓦、宽瓦筋板、宽瓦上连杆、宽瓦下连杆、宽瓦短连杆；传动机构包括底座、内轴套、外轴套、轴端支座环，窄鼓瓦与窄瓦筋板通过螺纹固定连接，窄瓦筋板通过铰支座分别与窄瓦上连杆、窄瓦下连杆的一端相连，窄瓦上连杆另一端铰接于轴端支座环上，窄瓦下连杆的另一端则与固定在内轴套上的铰支座连接，窄瓦短连杆一端与窄瓦下连杆的中心部位铰接，另一端与固定于底座上的铰支座连接，宽鼓瓦与宽瓦筋板通过螺纹固定连接，宽瓦筋板通过铰支座分别与宽瓦上连杆、宽瓦下连杆一端相连，宽瓦上连杆、宽瓦下连杆的另一端均与固定在外轴套上的铰支座连接，宽瓦短连杆一端与宽瓦下连杆的中心部位铰接，另一端与固定于底座上的铰支座连接，底座、内轴套、轴端支座环套于中心机构活塞杆上，定位销将轴端支座环固定于内轴套上端，内轴套通过夹环和连接螺栓与活塞杆固定，内轴套的外部为外轴套，外轴套上开设一定数量在圆周方向上均匀分布的导向槽，内轴套上的铰支座位于导向槽内；加热装置包括两个结构相同的电磁加热器，电磁加热器由电磁线圈、“|”形磁芯、隔热层、外壳组成，电磁线圈缠绕在磁芯上，绕线方向是沿组成鼓瓦的宽鼓瓦、窄鼓瓦纵向，电磁线圈表面覆盖有隔热层，最外层为外壳；两个电磁加热器对称分布于鼓瓦筋板支座的左右两侧，并通过硅胶与鼓瓦筋板粘结固定，缠绕在两“|”形磁芯上的两组电磁线圈由一根长导线串联而成，再与变频控制电路连接，缠绕在两“|”形磁芯上的两组电磁线圈也可以是并联而成，分别与变频控制电路连接，两组电磁线圈的缠绕方向相同且电感量相同，而宽鼓瓦上电磁线圈的电感量大于窄鼓瓦上电磁线圈的电感量。
加热装置结构或者为包括“∪”形磁芯、电磁线圈和隔热层，在与鼓瓦贴合的筋板表面开设一定数量的横向沟槽，沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，将“∪”形磁芯埋设于沟槽内，磁芯两极指向鼓瓦，每个磁芯的一极套置电磁线圈，每块鼓瓦上的电磁线圈由一根长导线串联而成，再与变频控制电路连接，也可以是并联而成，分别与变频控制电路连接，每块鼓瓦上的电磁线圈的电感量和缠绕方向均相同，而宽鼓瓦上电磁线圈的电感量大于窄鼓瓦上电磁线圈的电感量，筋板与鼓瓦接触面之间铺设有隔热层。
筋板接触的鼓瓦表面中部开设有型腔，型腔内蓄含有相变材料。
底座与外轴套的内表面上嵌有铜套。
组成鼓瓦的宽鼓瓦或窄鼓瓦内部中心及两端位置装有热电偶。
组成鼓瓦的宽鼓瓦或窄鼓瓦中心内部安装有高温熔体压力传感器。
组成鼓瓦的宽鼓瓦或窄鼓瓦由钢材制成。
鼓瓦筋板与外壳由不导磁的金属材料制成。
本发明的有益效果是，（1）采用可胀缩的刚性金属内模具替换现有轮胎定型硫化机中心机构上的硫化胶囊，从根本上解决了现有硫化工艺中胶囊膨胀不彻底，结构不对称等问题，本发明方法所能提供的硫化压力较胶囊硫化形式提高了30%～40%，可显著改善胶料在熔融状态下的流动分布，进而提高成品轮胎的均匀性及动平衡性；（2）在对胎坯内腔加热时无需消耗蒸汽、过热水等动力介质，而是采用电磁感应加热方式，大大节约了能源；（3）本发明方法中的内模具为胎坯硫化提供压力，加热装置则提供了温度条件，从而实现压力、温度各单项独立调节，缩短了硫化周期，生产效率明显提高；（4）内模具中蓄含的相变材料可根据胎坯不同部位硫化时的热量需要对鼓瓦温度分段控制，从而保证胎坯较难硫化部位达到硫化平坦期的同时，防止较易硫化部位过硫，因此轮胎硫化质量提高；（5）此外，本发明的轮胎内外模直压成型电磁感应加热硫化设备结构稳固，运行安全，无须频繁更换，可在硫化生产中长期使用，解决了原有工艺中胶囊使用成本高的问题。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1为采用本发明轮胎内外模直压成型电磁感应加热硫化设备硫化轮胎的合模示意图。
图2为本发明轮胎内外模直压成型电磁感应加热硫化设备采用加热装置A时内模具的胀开剖视图。
图3为图2的局部放大图。
图4为本发明轮胎内外模直压成型电磁感应加热硫化设备采用加热装置A时内模具的收缩剖视图。
图5本发明轮胎内外模直压成型电磁感应加热硫化设备为采用加热装置A时内模具的鼓瓦胀开外观图。
图6为图5的局部放大图。
图7为本发明轮胎内外模直压成型电磁感应加热硫化设备采用加热装置A时的局部结构示意图。
图8为本发明轮胎内外模直压成型电磁感应加热硫化设备采用加热装置B时的鼓瓦筋板结构示意图。
图9为本发明轮胎内外模直压成型电磁感应加热硫化设备的加热装置B的局部剖视图。
图10为本发明轮胎内外模直压成型电磁感应加热硫化设备的加热装置B中缠绕电磁线圈的“∪”形磁芯结构示意图。
图11为本发明轮胎内外模直压成型电磁感应加热硫化设备的宽鼓瓦结构示意图。
图中，1、窄鼓瓦；2、窄瓦上连杆；3、内轴套；4、外轴套；5、夹环；6、连接螺栓；7、轴端支座环；8、定位销；9、宽瓦上连杆；10、宽鼓瓦；11、高温熔体压力传感器；12、宽瓦筋板；13、宽瓦下连杆；14、宽瓦短连杆；15、铜套；16、底座；17、活塞杆；18、窄瓦短连杆；19、窄瓦下连杆；20、窄瓦筋板；21、热电偶；22、相变材料；23、“|”形磁芯；24、硅胶；25、隔热层a；26、电磁线圈a；27、外壳；28、“∪”形磁芯；29、电磁线圈b；30、隔热层b；31、外模具；32、上盖；33、胎坯；34、下钢圈。
具体实施方式
本发明轮胎硫化方法实施例1
参见图1、图2、图4、图5，轮胎内外模直压成型电磁感应加热硫化方法，是将轮胎定型硫化机中心机构上的硫化胶囊替换为金属内模具，内模具主要由n块宽鼓瓦10、n块窄鼓瓦1（n为不小于5的整数，本实施例中n取6）、胀缩机构及与鼓瓦固连并起支撑作用的鼓瓦筋板组成，其中宽鼓瓦10和窄鼓瓦1沿周向相互交替排列，并可通过中心机构活塞杆17驱动胀缩机构实现径向膨胀和收缩，每一块鼓瓦各处的纵向外轮廓曲线都与成品轮胎的内轮廓曲线一致。硫化时，内模具处于胀开状态，宽鼓瓦10和窄鼓瓦1紧密贴合，在外形上组成一个完整的圆，圆的外径等于成品轮胎的内径；卸胎时，内模具的宽鼓瓦10和窄鼓瓦1异步收缩，最终所有窄鼓瓦1收缩至内圆以内，宽鼓瓦10收缩至外圆以内，其中，内圆直径＜外圆直径≤成品轮胎子口直径。参见图11，在与鼓瓦筋板接触的鼓瓦表面中部开设一定深度的型腔，型腔内灌封有相变材料22。
参见图3、图6、图7，利用电磁感应加热方式对内模具的鼓瓦进行加热，每一块鼓瓦背面安装有两组电感量相同的电磁线圈a26，电磁线圈a26对称分布于鼓瓦纵向中心线的左右两侧，绕线方向沿鼓瓦纵向。工作时，高频电流作用下的电磁线圈a26产生磁力线形成沿鼓瓦纵向环绕的高频交变磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，从而对胎坯33进行加热。由于鼓瓦上下两侧位置所处的交变磁场强度相同，因此产生的涡电流大小相同，温升一致。当鼓瓦中部被加热到所需的温度，其内部的相变材料22吸收并储藏多余的热量，从而使中部温度不再变化，而鼓瓦上下两侧温度继续升高，这样，鼓瓦中部与两侧温度不同，以适应轮胎不同部位硫化时的热量需要，保证轮胎整体硫化质量。
本发明轮胎硫化方法实施例2
参见图8～图10，本实施例与本发明轮胎硫化方法实施例1中的内模具结构相同，区别在于电磁线圈的安装结构是这样的：在与鼓瓦贴合的筋板表面开设一定数量的横向沟槽，沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，每个沟槽内埋设电磁线圈b29，每块鼓瓦上的所有电磁线圈b29的电感量相同。工作时，电磁线圈b29产生磁力线形成沿鼓瓦横向环绕的高频磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，由于位于鼓瓦筋板两侧的线圈结构相同，因此产生的高频磁场相同，鼓瓦两侧温升一致。
本发明轮胎硫化专用内模实施例1
参见图2、图4,本发明轮胎内外模直压成型电磁感应加热硫化设备主要由内模具和加热装置A组成。内模具包括胀缩机构和传动机构，胀缩机构主要由窄瓦胀缩机构和宽瓦胀缩机构组成，窄瓦胀缩机构包括窄鼓瓦1、窄瓦筋板20、窄瓦上连杆2、窄瓦下连杆19、窄瓦短连杆18，宽瓦胀缩机构包括宽鼓瓦10、宽瓦筋板12、宽瓦上连杆9、宽瓦下连杆13、宽瓦短连杆14；传动机构包括底座16、内轴套3、外轴套4、轴端支座环7。窄鼓瓦1与窄瓦筋板20通过螺纹固定连接，窄瓦筋板20通过铰支座分别与窄瓦上连杆2、窄瓦下连杆19的一端相连，窄瓦上连杆2另一端铰接于轴端支座环7上，窄瓦下连杆19的另一端则与固定在内轴套3上的铰支座连接，窄瓦短连杆18一端与窄瓦下连杆19的中心部位铰接，另一端与固定于底座16上的铰支座连接，宽鼓瓦10与宽瓦筋板12通过螺纹固定连接，宽瓦筋板12通过铰支座分别与宽瓦上连杆9、宽瓦下连杆13一端相连，宽瓦上连杆9、宽瓦下连杆13的另一端均与固定在外轴套4上的铰支座连接，宽瓦短连杆14一端与宽瓦下连杆13的中心部位铰接，另一端与固定于底座16上的铰支座连接，底座16、内轴套3、轴端支座环7套于中心机构活塞杆17上，定位销8将轴端支座环7固定于内轴套3上端，内轴套3通过夹环5和连接螺栓6与活塞杆17固定，内轴套3的外部为外轴套4，外轴套4上开设一定数量在圆周方向上均匀分布的导向槽，内轴套3上的铰支座位于导向槽内，并可作上下滑动。
当内模收缩时，底座16保持不动，活塞杆17连同内轴套3与轴端支座环7上移，通过窄瓦上连杆2，窄瓦下连杆19带动窄鼓瓦1作径向收缩，当内轴套3上的铰支座上端面触到外轴套4上导向槽上端面，外轴套4开始上移，通过宽瓦上连杆9，宽瓦下连杆13带动宽鼓瓦10作径向收缩，即内模具收缩时宽鼓瓦10和窄鼓瓦1是异步动作的。当内模具胀开时，底座16保持不动，活塞杆17带动内轴套3与轴端支座环7下移，同时外轴套4跟随内轴套3同步下落，当外轴套4下端面与底座16上端面接触，宽鼓瓦10胀开到位，活塞杆17带动内轴套3继续下移，当内轴套3下端面与底座16上端面接触，窄鼓瓦1胀开到位。
参见图11，在与筋板接触的鼓瓦表面中部开设2～5mm深度的型腔，型腔内灌封有相变材料22，如相变温度在150℃的固态无机盐。所有鼓瓦由铁质含量高的钢材制成，如45号钢。在底座16与外轴套4的内表面嵌有2mm厚的铜套15，防止硫化过程中温度过高机构出现卡紧现象。鼓瓦筋板由不导磁的金属材料制成，如不锈钢304。在鼓瓦内部中心及两端位置装有热电偶21，以对鼓瓦表面温度进行实时监控。在其中一块鼓瓦中心内部安装有高温熔体压力传感器11，以便对模具及胎坯压力进行实时测定。
参见图3、图6、图7，所述加热装置A包括两个结构相同的电磁加热器，电磁加热器主要由电磁线圈a26、“|”形磁芯23、隔热层a25、外壳27组成，电磁线圈a26缠绕在“|”形磁芯23上，其绕线方向为沿鼓瓦纵向，电磁线圈a26表面覆盖有隔热层a25，隔热层a25材料为石棉，外壳27由不导磁的金属材料制成，如不锈钢304，“|”形磁芯23由具有高导磁率的铁氧体或微晶合金材料制成；两个电磁加热器对称分布于鼓瓦筋板支座的左右两侧，并通过硅胶24与鼓瓦筋板胶粘结固定。缠绕在两“|”形磁芯23上的两组电磁线圈a26由一根长导线串联而成，再与变频控制电路连接，也可以是并联而成，分别与控制电路连接。两组电磁线圈a26的缠绕方向相同且电感量相同，由于宽鼓瓦10的体积大于窄鼓瓦1的体积，因此宽鼓瓦10上电磁线圈a26的电感量大于窄鼓瓦1上电磁线圈a26的电感量，相差15µH～25µH。工作时，高频电流作用下的电磁线圈a26产生磁力线沿鼓瓦纵向环绕的高频交变磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，从而对胎坯33进行加热，由于鼓瓦上下两侧位置所处的交变磁场强度相同，因此产生的涡电流大小相同，温升一致。当鼓瓦中部被加热到所需的温度，其内部的相变材料22吸收并储藏多余的热量，使中部温度不再变化，而鼓瓦上下两侧温度继续升高，这样，鼓瓦中部与两侧温度不同，以适应轮胎不同部位硫化时的热量需要，保证轮胎整体硫化质量。
本发明轮胎硫化专用内模实施例2
参见图8～图10，本发明轮胎内外模直压成型电磁感应加热硫化设备主要由内模具和加热装置B组成。本实施例中内模具与本发明轮胎硫化专用内模实施例1中的内模具结构相同，所述加热装置B包括“∪”形磁芯28、电磁线圈b29和隔热层b30。在与鼓瓦贴合的筋板表面开设一定数量的横向沟槽（本实施例中数量为3个），沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，将“∪”形磁芯28埋设于沟槽内，“∪”形磁芯28两极指向鼓瓦，“∪”形磁芯28由具有高导磁率的铁氧体或微晶合金材料制成。每个“∪”形磁芯28的一极套置电磁线圈b29，每块鼓瓦上的电磁线圈b29由一根长导线串联而成，再与变频控制电路连接，也可以是并联而成，分别与控制电路连接。每块鼓瓦上的电磁线圈b29的电感量和缠绕方向均相同，由于宽鼓瓦10的体积大于窄鼓瓦1的体积，因此宽鼓瓦10上电磁线圈b29的电感量大于窄鼓瓦1上电磁线圈b29的电感量，其相差15µH～25µH。筋板与鼓瓦接触面之间铺设有隔热层b30，材料为石棉。工作时，电磁线圈b29产生磁力线沿鼓瓦横向环绕的高频磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，由于位于鼓瓦筋板两侧的线圈结构相同，因此产生的高频磁场相同，鼓瓦两侧温升一致。
采用本发明轮胎内外模直压成型电磁感应加热硫化方法制造轮胎的具体步骤：
（1）装胎：内模具处于收缩状态，其底座16距离下钢圈34一定高度，以保证内模具胀缩时鼓瓦不与下钢圈34发生干涉，利用机械手将待硫化胎坯33抓起，保持胎坯33中心线与中心机构中心线对齐。
（2）定型：中心机构活塞杆17下降，通过内模具中的连杆带动鼓瓦逐渐胀开，待所有鼓瓦完全打开时活塞杆17停止动作，此时胎坯33被鼓瓦撑起定型，随后中心机构连同胎坯33下移，待内模具底座16与下钢圈34接触停止。
（3）合模：如图1所示，蒸汽室关闭，接通电路，外模具上盖32压住夹环5上端面，以对中心机构进行限位，防止硫化过程中鼓瓦表面压力过大而导致活塞杆17回升。
（4）卸胎：断开电路，蒸汽室开启，硫化后的成品胎跟随中心机构上移，待下胎侧位于下钢圈34上方时停止动作，再将中心机构活塞杆17上移，通过内轴套3、外轴套4及连杆带动窄鼓瓦1、宽鼓瓦10异步收缩，待所有鼓瓦收缩至胎圈直径以内时，轮胎被顺利取下。
实验示例
选定255/30R22作为试验样胎规格，对48˝轮胎液压定型硫化机B型中心机构进行改造，将硫化胶囊替换为本发明轮胎硫化设备实施例1的轮胎内外模直压成型电磁感应加热硫化设备，其中内模具的连杆均采用超高强度合金钢制成。
1.外观检测
按照本发明轮胎内外模直压成型电磁感应加热硫化方法的步骤进行轮胎硫化，对硫化后的轮胎进行外观质量检测，结果未发现轮胎存在胎圈外侧露帘线，胎圈宽窄不一，胎趾出边，胎里表面凹凸不平等质量缺陷。
2.层间气泡
利用干涉轮胎检验仪检查成品轮胎内部层间是否含有气泡，图a为胎冠区域的检测图像，图b为胎侧区域的检测图像，结果表明，采用本发明轮胎内外模直压成型电磁感应加热硫化方法制造的轮胎内部各层胶部件之间贴合致密。
如表1所示，发明胎1～4采用轮胎内外模直压成型电磁感应加热硫化方法制造，比较胎1采用传统胶囊硫化方法制造，每条轮胎的硫化工艺参数（包括硫化压力和硫化内温）均不相同。
将这些测试胎安装于9JX22轮辋上，内充220KPa的气压，在同一测试条件下分别进行均匀性、动平衡、高速性及耐久性测试，结果如表1所示，
3.均匀性
将测试样胎安装于匀性试验机上，测量轮胎在无负荷条件下旋转一周自由半径的最大值与最小值之差，数值越大，均匀性越差。
4.动平衡
将测试样胎安装于动平衡试验机上，使轮胎以恒定转速转动，测定样胎相对于某一垂直于试验机旋转轴的基准平面的跳动量，数值越小，表明动平衡性越高。
5.高速性
将测试样胎安装于转鼓试验机上，使轮胎以低于230km/h的初始速度旋转，每隔十分钟，旋转速度增加10km/h，直至轮胎出现脱层、崩花、龟裂或胎体异常变形等缺陷时试验停止，表中数值约高，表明高速性越好。
6.耐久性
将测试样胎安装于转鼓试验机上，使轮胎以586.5kg的负荷，120km/h的转速转动，分阶段给转动过程中的轮胎增加负荷，每个阶段按规定检测一段时间，当轮胎出现脱层、崩花、龟裂或胎体异常变形等缺陷时试验停止，而评价参数为所有阶段的检测时间的总和。
7.硫化周期
将硫化工艺参数设定在：合模力1000Kn、硫化内温180℃。对硫化过程中的轮胎进行温度测量，通过对等效硫化时间的计算可知，采用本发明轮胎内外模直压成型电磁感应加热硫化方法制造轮胎，其硫化周期相比传统胶囊硫化方法缩短约1分钟。
8.能耗
采用轮胎内外模直压成型电磁感应加热硫化方法，平均一条轮胎保证硫化内温仅耗电约1.1度，与传统胶囊硫化方法相比，节能效果明显。
表1
发明胎1 发明胎2 发明胎3 发明胎4 比较胎1
合模力（KN） 500 800 850 1000 1000
硫化内温(℃) 180 180 180 180 175
均匀性（mm） 11.94 10.84 8.24 5.13 10.26
动平衡(mm) 23 18 12.7 8.4 17.9
高速性(km/h) 273 280 300 310 278
耐久性(h) 48.2 50 51.5 54 49.6

Claims (10)

  1. 一种轮胎直压成型电磁感应加热硫化方法，其特征是：在轮胎定型硫化机中心机构上使用伸缩式金属内模，内模由宽鼓瓦、窄鼓瓦、胀缩机构及与宽鼓瓦、窄鼓瓦固连并起支撑作用的鼓瓦筋板组成，其中宽鼓瓦和窄鼓瓦沿周向相互交替排列，并可通过中心机构活塞杆驱动胀缩机构实现径向膨胀和收缩，组成鼓瓦的每块宽鼓瓦、窄鼓瓦各处的纵向外轮廓曲线都与成品轮胎的内轮廓曲线一致；硫化时，内模处于胀开状态，宽鼓瓦和窄鼓瓦紧密贴合，在外形上组成一个完整的圆，圆的外径等于成品轮胎的内径；卸胎时，内模的宽鼓瓦和窄鼓瓦异步收缩，最终所有窄鼓瓦收缩至内圆以内，宽鼓瓦收缩至外圆以内，其中，内圆直径＜外圆直径≤成品轮胎子口直径；在与鼓瓦筋板接触的鼓瓦表面中部开设一定深度的型腔，型腔内蓄含有相变材料；利用电磁感应加热方式对内模具的鼓瓦进行加热，每一块鼓瓦背面安装有两组电感量相同的电磁线圈，电磁线圈对称分布于鼓瓦纵向中心线的左右两侧，绕线方向沿鼓瓦纵向；工作时，高频电流作用下的电磁线圈产生磁力线沿鼓瓦纵向环绕的高频交变磁场，内模的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，从而对胎坯进行加热，由于鼓瓦上下两侧位置所处的交变磁场强度相同，因此产生的涡电流大小相同，温升一致；当鼓瓦中部被加热到所需的温度，其内部的相变材料吸收并储藏多余的热量，从而使中部温度不再变化，而鼓瓦上下两侧温度继续升高，这样，鼓瓦中部与两侧温度不同，以适应轮胎不同部位硫化时的热量需要，保证轮胎整体硫化质量。
  2. 根据权利要求1所述一种轮胎直压成型电磁感应加热硫化方法，其特征在于所述的在与鼓瓦贴合的筋板表面开设横向沟槽，沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，每个沟槽内埋设电磁线圈，每块鼓瓦上的所有电磁线圈的电感量相同；工作时，电磁线圈产生磁力线沿鼓瓦横向环绕的高频磁场，内模具的鼓瓦通过切割磁力线表面产生涡电流，涡电流的热效应使鼓瓦温度迅速升高，由于位于鼓瓦筋板两侧的线圈结构相同，因此产生的高频磁场相同，鼓瓦两侧温升一致。
  3. 一种用于权利要求1所述轮胎直压成型电磁感应加热硫化方法的专用内模，其特征是：由内模具和加热装置组成，所述内模具包括胀缩机构和传动机构，胀缩机构由窄瓦胀缩机构和宽瓦胀缩机构组成，窄瓦胀缩机构包括窄鼓瓦、窄瓦筋板、窄瓦上连杆、窄瓦下连杆和窄瓦短连杆，宽瓦胀缩机构包括宽鼓瓦、宽瓦筋板、宽瓦上连杆、宽瓦下连杆和宽瓦短连杆；传动机构包括底座、内轴套、外轴套和轴端支座环，窄鼓瓦与窄瓦筋板通过螺纹固定连接，窄瓦筋板通过铰支座分别与窄瓦上连杆、窄瓦下连杆的一端相连，窄瓦上连杆另一端铰接于轴端支座环上，窄瓦下连杆的另一端则与固定在内轴套上的铰支座连接，窄瓦短连杆一端与窄瓦下连杆的中心部位铰接，另一端与固定于底座上的铰支座连接，宽鼓瓦与宽瓦筋板通过螺纹固定连接，宽瓦筋板通过铰支座分别与宽瓦上连杆、宽瓦下连杆一端相连，宽瓦上连杆、宽瓦下连杆的另一端均与固定在外轴套上的铰支座连接，宽瓦短连杆一端与宽瓦下连杆的中心部位铰接，另一端与固定于底座上的铰支座连接，底座、内轴套、轴端支座环套于中心机构活塞杆上，定位销将轴端支座环固定于内轴套上端，内轴套通过夹环和连接螺栓与活塞杆固定，内轴套的外部为外轴套，外轴套上开设一定数量在圆周方向上均匀分布的导向槽，内轴套上的铰支座位于导向槽内；加热装置包括两个结构相同的电磁加热器，电磁加热器由电磁线圈、“|”形磁芯、隔热层、外壳组成，电磁线圈缠绕在磁芯上，绕线方向是沿组成鼓瓦的宽鼓瓦、窄鼓瓦纵向，电磁线圈表面覆盖有隔热层，最外层为外壳；两个电磁加热器对称分布于鼓瓦筋板支座的左右两侧，并通过硅胶与鼓瓦筋板粘结固定，缠绕在两“|”形磁芯上的两组电磁线圈由一根长导线串联而成，再与变频控制电路连接，缠绕在两“|”形磁芯上的两组电磁线圈也可以是并联而成，分别与变频控制电路连接，两组电磁线圈的缠绕方向相同且电感量相同，而宽鼓瓦上电磁线圈的电感量大于窄鼓瓦上电磁线圈的电感量。
  4. 根据权利要求3所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的加热装置包括“∪”形磁芯、电磁线圈和隔热层，在与鼓瓦贴合的筋板表面开设一定数量的横向沟槽，沟槽对称均匀分布于鼓瓦横向中心线的左右两侧，将“∪”形磁芯埋设于沟槽内，磁芯两极指向鼓瓦，每个磁芯的一极套置电磁线圈，每块鼓瓦上的电磁线圈由一根长导线串联而成，再与变频控制电路连接，也可以是并联而成，分别与变频控制电路连接，每块鼓瓦上的电磁线圈的电感量和缠绕方向均相同，而宽鼓瓦上电磁线圈的电感量大于窄鼓瓦上电磁线圈的电感量，筋板与鼓瓦接触面之间铺设有隔热层。
  5. 根据权利要求3或4所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的与筋板接触的鼓瓦表面中部开设有型腔，型腔内蓄含有相变材料。
  6. 根据权利要求3所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的底座与外轴套的内表面上嵌有铜套。
  7. 根据权利要求3或4所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的组成鼓瓦的宽鼓瓦或窄鼓瓦内部中心及两端位置装有热电偶。
  8. 根据权利要求3或4所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的组成鼓瓦的宽鼓瓦或窄鼓瓦中心内部安装有高温熔体压力传感器。
  9. 根据权利要求3或4所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的组成鼓瓦的宽鼓瓦或窄鼓瓦由钢材制成。
  10. 根据权利要求3或4所述用于轮胎直压成型电磁感应加热硫化方法的专用内模，其特征在于所述的鼓瓦筋板与外壳由不导磁的金属材料制成。
PCT/CN2013/080086 2013-05-28 2013-07-25 轮胎直压成型电磁感应加热硫化方法及其专用内模 WO2014190605A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/432,056 US9751271B2 (en) 2013-05-28 2013-07-25 Tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus
US15/635,696 US9827725B2 (en) 2013-05-28 2017-06-28 Tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310204881.4 2013-05-28
CN201310204881.4A CN103286893B (zh) 2013-05-28 2013-05-28 轮胎直压成型电磁感应加热硫化方法及其专用内模

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/432,056 A-371-Of-International US9751271B2 (en) 2013-05-28 2013-07-25 Tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus
US15/635,696 Division US9827725B2 (en) 2013-05-28 2017-06-28 Tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus

Publications (1)

Publication Number Publication Date
WO2014190605A1 true WO2014190605A1 (zh) 2014-12-04

Family

ID=49088678

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/080086 WO2014190605A1 (zh) 2013-05-28 2013-07-25 轮胎直压成型电磁感应加热硫化方法及其专用内模

Country Status (3)

Country Link
US (2) US9751271B2 (zh)
CN (1) CN103286893B (zh)
WO (1) WO2014190605A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081360A4 (en) * 2015-01-20 2016-12-21 Mitsubishi Heavy Ind Mach Tech REIFENVULKANISATOR
CN106426986A (zh) * 2016-12-13 2017-02-22 北京鸿鹄雄狮技术开发有限公司 自带压力源、加热源的复合材料成型模具及模具组

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552175B (zh) * 2013-11-18 2016-05-11 三角（威海）华盛轮胎有限公司 轮胎硫化内模具
CN103538188B (zh) * 2013-11-18 2016-09-07 三角（威海）华盛轮胎有限公司 轮胎硫化外模具电磁感应加热装置
FR3014009B1 (fr) * 2013-12-04 2016-11-04 Michelin & Cie Moule a secteurs pour pneumatique et procede de moulage associe
CN105643965B (zh) * 2016-04-14 2018-06-01 三角（威海）华盛轮胎有限公司 金属内模定型的轮胎硫化机
US9948843B2 (en) * 2016-06-17 2018-04-17 Mitutoyo Corporation Super resolution bore imaging system
CN106626176A (zh) * 2017-03-16 2017-05-10 青岛双星橡塑机械有限公司 轮胎定型双模硫化机
CN106945317B (zh) * 2017-03-27 2023-08-15 青岛海琅智能装备有限公司 用于轮胎硫化定型的刚性内模
CN107627638B (zh) * 2017-09-28 2023-12-15 北京化工大学 轮胎直压硫化渐变成型装备及工艺
CN108407154B (zh) * 2018-04-19 2024-05-31 北京大学 橡胶支座硫化装置
CN109383056B (zh) * 2018-11-22 2024-01-09 三角（威海）华盛轮胎有限公司 异步胀缩轮胎直压硫化内模具
CN109501343B (zh) * 2019-01-04 2023-12-05 山东豪迈机械科技股份有限公司 一种内模组件、内模组件的使用方法及轮胎模具
CN109732822A (zh) * 2019-02-26 2019-05-10 喆能环保技术（深圳）有限公司 一种轮胎硫化的高频感应加热底盘及智能高频感应系统
CN109822799B (zh) * 2019-03-21 2024-02-23 天津市水利科学研究院 一种紫外光复合热固化管道修复结构
CN110103372B (zh) * 2019-05-29 2024-08-16 上海昂显机械设备有限公司 一种轮胎硫化机用电磁感应式加热板
CN111391198B (zh) * 2019-11-25 2021-10-15 浙江华丰新材料股份有限公司 一种连续缠绕玻璃钢管道固化装置
CN113211685A (zh) * 2021-04-08 2021-08-06 华南理工大学 一种用于轮胎直压硫化的金属内模电加热装置
EP4355563A1 (en) * 2021-06-18 2024-04-24 Bridgestone Americas Tire Operations, LLC Curing mold assemblies for non-pneumatic tires as well as methods of manufacture
CN116604867B (zh) * 2023-07-20 2023-09-22 山东豪迈机械科技股份有限公司 轮胎硫化设备及其使用方法
CN118288593B (zh) * 2024-06-03 2024-08-23 南通申东裕浩轮胎有限公司 一种轮胎硫化用金属内模导引机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020070528A (ko) * 2001-02-28 2002-09-10 한국타이어 주식회사 그린 타이어 예열장치
JP2006103106A (ja) * 2004-10-04 2006-04-20 Bridgestone Corp タイヤ加硫成型金型
JP2006224417A (ja) * 2005-02-17 2006-08-31 Bridgestone Corp 加硫装置
CN101511557A (zh) * 2006-09-21 2009-08-19 株式会社神户制钢所 加热单元、轮胎加热装置及轮胎模具的改造方法
CN102470563A (zh) * 2009-07-16 2012-05-23 株式会社神户制钢所 模具加热装置
CN102658618A (zh) * 2012-05-18 2012-09-12 北京化工大学 一种轮胎内外模直压电磁加热硫化方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432257Y2 (zh) * 1984-12-20 1992-08-03
CN1262406C (zh) * 2001-05-28 2006-07-05 株洲时代新材料科技股份有限公司 硫化机电磁加热方法及装置
JP5432955B2 (ja) * 2011-06-24 2014-03-05 住友ゴム工業株式会社 剛性中子
CN102490330B (zh) * 2011-12-02 2014-06-04 北京化工大学 基于相变蓄能材料的温度控制方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020070528A (ko) * 2001-02-28 2002-09-10 한국타이어 주식회사 그린 타이어 예열장치
JP2006103106A (ja) * 2004-10-04 2006-04-20 Bridgestone Corp タイヤ加硫成型金型
JP2006224417A (ja) * 2005-02-17 2006-08-31 Bridgestone Corp 加硫装置
CN101511557A (zh) * 2006-09-21 2009-08-19 株式会社神户制钢所 加热单元、轮胎加热装置及轮胎模具的改造方法
CN102470563A (zh) * 2009-07-16 2012-05-23 株式会社神户制钢所 模具加热装置
CN102658618A (zh) * 2012-05-18 2012-09-12 北京化工大学 一种轮胎内外模直压电磁加热硫化方法及装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081360A4 (en) * 2015-01-20 2016-12-21 Mitsubishi Heavy Ind Mach Tech REIFENVULKANISATOR
CN106426986A (zh) * 2016-12-13 2017-02-22 北京鸿鹄雄狮技术开发有限公司 自带压力源、加热源的复合材料成型模具及模具组

Also Published As

Publication number Publication date
CN103286893A (zh) 2013-09-11
US20170297229A1 (en) 2017-10-19
US9751271B2 (en) 2017-09-05
US9827725B2 (en) 2017-11-28
CN103286893B (zh) 2016-01-06
US20160176136A1 (en) 2016-06-23

Similar Documents

Publication Publication Date Title
WO2014190605A1 (zh) 轮胎直压成型电磁感应加热硫化方法及其专用内模
CN102658618B (zh) 一种轮胎内外模直压电磁加热硫化方法及装置
CN115091798B (zh) 轮胎3d复印无胶囊硫化定型工艺及装备
WO2016180292A1 (zh) 一种平板硫化机及其硫化工艺
JP2006224417A (ja) 加硫装置
CN114290581A (zh) 一种轮胎电磁感应微波硫化装备及方法
CN104552696A (zh) 一种多模块独立控温轮胎硫化工艺试验装置
TWI481570B (zh) 連續式工件模造設備及方法
CN104385502B (zh) 电磁感应加热轮胎硫化外模具
JP3599510B2 (ja) タイヤ加硫装置
CN116238194A (zh) 一种带有聚四氟乙烯涂层的轮胎电磁硫化内外模具装置
JP2006035615A (ja) タイヤ加硫方法及び装置
CN216100538U (zh) 一种开启式磁路感应加热轮胎直压硫化装置
CN204209882U (zh) 电磁感应加热轮胎硫化外模具
CN112959706A (zh) 一种开启式磁路感应加热轮胎直压硫化方法及装置
KR100771688B1 (ko) 그린타이어 비드부를 예열하는 로더
CN203651015U (zh) 高性能子午线轮胎鼓式硫化装置
CN203527725U (zh) 一种车胎活络模硫化机
JP6092711B2 (ja) タイヤの加硫方法およびタイヤの加硫装置
CN216152825U (zh) 一种巨型轮胎缠绕前胎面加热装置
KR100518304B1 (ko) 전기 가류기
CN103660100A (zh) 高性能子午线轮胎鼓式硫化装置
JP2011116062A (ja) 空気入りタイヤの加硫方法および加硫装置
JP2008126495A (ja) タイヤ加硫用ブラダー及びそれを用いたタイヤ加硫方法
JP5551977B2 (ja) 台タイヤ加硫装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14432056

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13886112

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 13886112

Country of ref document: EP

Kind code of ref document: A1