CN111497085A

CN111497085A - Short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment

Info

Publication number: CN111497085A
Application number: CN202010342028.9A
Authority: CN
Inventors: 于本亮; 辛朝旭; 于本会; 汪传生
Original assignee: Qingdao University of Science and Technology
Current assignee: Qingdao University of Science and Technology
Priority date: 2019-04-28
Filing date: 2020-04-27
Publication date: 2020-08-07
Also published as: CN212472125U; CN214214449U

Abstract

The invention discloses short fiber radial orientation reinforced annular segmented tread extrusion integrated equipment which is fixed on a frame and is sequentially connected with a segmented mold upper cover traction device, a rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold, a segmented mold core driving device, a rubber injection machine and an injection machine transmission device from right to left; the electromagnetic vulcanization segmented mold for the annular tire surface of the rubber injection retreaded tire is matched with the segmented mold core driving device and the segmented mold upper cover traction device, so that the separation of the inner core part of the electromagnetic vulcanization segmented mold for the annular tire surface of the rubber injection retreaded tire and the radial movement of the sliding block part can be realized, and the injection molding vulcanization process can be realized at one time. The invention solves the technical problems that in the prior art, the annular tire tread is not easy to take out after short fiber reinforced rubber is injected and molded, the pressure loss is overlarge during injection, the precured tire tread cannot be well molded, and the production process is complicated, and improves the radial orientation degree of the short fiber reinforced tire tread rubber.

Description

Short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment

Technical Field

The invention relates to the technical field of tire pre-vulcanization segmented molds, in particular to short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment.

Background

At present, with the high-speed development of economic construction in China, reasonable utilization of energy and resources is more important to relieve the contradiction between energy and resource conservation in China and the development of economic society, and energy utilization rate needs to be improved rapidly and circular economy needs to be developed vigorously. At present, the comprehensive utilization of various resources in China has great development potential, for example: the annual output of tires in China is hundreds of millions, and how to recycle the discarded tires after tire retreading saves energy, cost and waste pollution, and obtains greater benefit. The existing tire retreading vulcanization mold generally has the defects of complex structure, complex vulcanization clamping steps, high manufacturing cost and low yield.

Chinese patent CN200920118813.5 discloses a vulcanizing mould for replacing the tread of a used tire, in particular to a ring-shaped tread vulcanizing mould, which comprises a bottom plate and a cover plate, wherein an upper middle mould, a lower middle mould, a cavity and a pattern block are arranged between the bottom plate and the cover plate from inside to outside, the slider, the gib block, take the die sleeve of steam chamber and steam chamber apron, be equipped with cooperation installation gib block between slider and the die sleeve, be equipped with spacing spout on the inclined plane of the gib block of pressing close to the die sleeve, install spacing bolt on the die sleeve and push up in spacing spout, the gib block is "protruding" style of calligraphy, the equipartition is installed on the inner wall of die sleeve and corresponds each decorative pattern piece, the both sides of gib block all cooperate and are equipped with the antifriction board, the apron is equipped with the adjustable ring outward, set up on the steam chamber apron with the communicating high-pressure steam inlet port of steam chamber, high-pressure steam exhaust hole, the utility model has the advantages of rational in infrastructure, be convenient for vulcanize and guarantee.

CN201621403114.1 provides a self-lubricating tire segmented mold, solves the problem that in the prior art, the quality of a tire is affected and the production cost is increased by using lubricating oil for reducing friction in the tire segmented mold. The die comprises a base, an arched seat and an upper cover which are positioned on the periphery, wherein a middle sleeve which slides along the surface of the arched seat in a reciprocating manner is arranged on the outer side surface of the arched seat, and a wear reducing plate is arranged on one surface of the middle sleeve, which is close to the arched seat, and is provided with a lubricating material for lubricating the matching surface of the arched seat; the arched seat is provided with a T-shaped block which is used for realizing sliding with the upper cover, and the upper cover is provided with an upper cover opening antifriction plate and an upper cover closing antifriction plate which are used for being matched with the T-shaped block; the base is provided with a wear reducing plate forming a sliding surface with the arch seat, and the wear reducing plate is also provided with a lubricating material for lubricating the matching surface of the arch seat. The utility model discloses simple structure, convenient to use does not use any lubricating oil, has not only practiced thrift manufacturing cost, can effectively improve the mould moreover and the life of antifriction plate, has fine practicality.

CN201220119915.0 a hot plate type segmented mold relates to a segmented mold, a plurality of lower friction plates (8) are distributed at intervals on the upper part of a base (9) along the periphery of a lower side plate (7), a plurality of pattern blocks (4) are arranged on the upper part of the lower side plate along the periphery of the lower side plate along the circumferential direction, the outer parts of the pattern blocks are fixedly connected with a sliding block (6), the outer parts of the sliding block are fixedly connected with a T-shaped guide block (14), the pattern blocks are slidably connected with a middle mold sleeve (15) through the sliding block and the T-shaped guide block, and a compression ring (18) is arranged on the upper part of the middle mold sleeve along the periphery of a cover plate (3); the middle die sleeve is arranged in a ring structure, a steam chamber is arranged in the middle of the middle die sleeve ring body, and the outer ring surface of the middle die sleeve is communicated with the steam chamber and is provided with a steam chamber inlet (22) and a steam chamber outlet (19); the utility model discloses a heating medium changes in steam chamber midstream, and transmission thermal efficiency is high, and the tire high quality of processing out reduces the heat loss, plays the heat preservation effect with the cover that keeps warm. However, these molds have the disadvantages of complicated structure, need of a plurality of screw bolt structures, difficulty in disassembly and incapability of opening and closing the molds at one time by using simple molds.

CN201611166376.5 discloses a radial orientation molding method of short fiber in tire tread rubber, the device for realizing the method comprises an inlet section, a transition section, a flow dividing section and a shaping section, a cylindrical flow passage in the flow dividing section is firstly deformed by 90 degrees, a flow dividing column with a hexagonal cross section is arranged at the center in the flow passage of the deformed flow dividing section, the tail end of the flow dividing column is connected with the shaping section, the shaping section consists of an upper shaping plate, a lower shaping plate and a plate die cavity, the flow passage in the shaping section takes the center as a starting point, rubber is extruded along six flow passages with equal cross sections, a flow passage opening is opposite to the hexagonal side, the cross section area of the flow dividing column is 1/2 of the cross section area of the cylindrical structure, and a short fiber pre-vulcanizing device of a block tire pattern surface is matched outside the shaping section, the device overcomes the technical problem that the orientation degree is reduced because the movement direction of the short fiber rubber changes when the short fiber rubber is vulcanized, the radial orientation degree of the fiber reinforced tread rubber is improved, and a novel method for radial orientation of short fibers is provided. The annular tire tread can be directly injection molded, but the annular tire tread is not easy to take out after injection molding, and the pressure loss is too large when rubber is injected, so that the precured tire tread cannot be well molded.

Disclosure of Invention

In view of the above, an object of the embodiments of the present invention is to provide an annular tread segmented mold, so as to improve the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

the annular tire tread segmented mold sequentially comprises a guide device, an inner movable device and an outer support device from inside to outside, wherein the lower part of the outer support device is connected with a bottom plate, the guide device is connected with the inner movable device, the guide device can move up and down in the vertical direction, and the inner movable device can move in the radius direction of a horizontal circular surface under the action of the guide device;

when the whole guide device moves upwards to the highest position along the vertical direction, the inner movable device can correspondingly approach to the central position of the annular tread segmented mold along the horizontal plane, when the whole guide device moves downwards to the lowest position along the vertical direction, the inner movable device can move outwards, and the outer support device can clamp the inner movable device;

furthermore, the guide device sequentially comprises a guide shaft and a support movably connected with the guide shaft from inside to outside;

preferably, the periphery of the guide shaft consists of six irregular quadrangular prisms, the guide shaft is fixed on the second stepped end face, the surface of the guide shaft further comprises upper bottom faces of the six irregular prisms, lower bottom faces of the guide shaft, a rhombic face, a branched side face a and a branched side face b of each irregular prism, and the upper surface of the stepped shaft in the guide shaft;

preferably, twelve inclined cylindrical surfaces are formed, each two inclined cylindrical surfaces form a groove inwards and are arranged on two sides of the irregular prism, and the inclined cylindrical surfaces form an angle of 45 degrees with the central axis direction of the guide shaft respectively;

preferably, the outer side surface of the stepped shaft in the guide shaft is in sliding connection with the upper supporting surface of the support; the lower surface of the supporting protrusion is in sliding connection with the outer side surface of the inclined cylindrical surface;

further, the guide shaft and the support form a guide rod sliding block mechanism;

furthermore, the number of the supports is six, the supports are connected with the guide shaft in a sliding mode inwards, and the supports are connected with the six inner segmented molds in a sliding mode outwards respectively;

preferably, when the annular tread segmented mold is in a die stamping state, the supporting main visual surface is in contact fit with a second stepped end surface of the guide shaft in the guide shaft;

furthermore, the side surface of the supporting protruding part of the support is in sliding connection with the middle surface of the inclined cylindrical surface;

furthermore, the inclined cylindrical surface is connected with a support in a sliding manner, the support is a T-like body, the main visual surface of the support is T-shaped, the included angle between the upper surface of the support and the horizontal plane is negative 45 degrees, the included angle between the lower surface of the support protrusion and the horizontal plane is 45 degrees, the side surface of the support protrusion is vertical to the upper surface of the support and the lower surface of the support protrusion, and the lower surface of the support protrusion is vertical to the vertical surface of the support;

further, when the annular tire tread segmented mold is in a closed state, the supporting rear view surface of the support moves upwards to be aligned with the upper surface of the guide shaft;

further, the inner movable device comprises an inner segmented mold, and the inner segmented mold is inwards movably connected with the support; when the guide device moves downwards to the lowest position, the arc end surface of the periphery of the inner segmented mold is in surface contact with an outer segmented mold b in the outer support device, and the inner segmented mold is clamped with the outer segmented mold b;

further, when the guide device moves downwards to the lowest position, the inner segmented mold can be clamped with the inner stepped end surface of the outer segmented mold and the inner circumferential surface II of the outer segmented mold in the outer segmented mold b through the stepped end surface of the inner segmented mold and the clamping surface of the inner segmented mold;

further, when the guide device moves downwards to the lowest position, the inner circumferential surface I of the outer segmented mold can be contacted with the outer convex surface of the inner segmented mold.

Preferably, the inner circumferential surface I of the outer moving net mold is provided with tire patterns;

further, the annular tire tread segmented mold sequentially comprises six guide shafts, supports, an inner segmented mold, an outer segmented mold a and an outer guide shaft from inside to outside, the six outer guide shafts are respectively arranged at the upper parts of horizontal planes of six extending parts of the bottom plate, the outer guide shaft is movably connected with the outer segmented mold a, the outer segmented mold a is movably connected with the outer side face of the outer segmented mold b along the direction of an outer curved surface circle and is fixedly connected with the outer side face of the outer segmented mold b along the vertical direction, the six inner segmented molds are movably connected with the outer arc end face of the outer periphery of the inner segmented mold b along the direction of the inner curved surface circle and are fixedly connected with the inner side face of the outer segmented mold b along the vertical direction, and the six bolts are respectively fixedly connected with the six outer segmented molds b;

further, a guide shaft of the annular tread segmented mold is connected with a control system, and the outer segmented mold b is connected with a temperature control pressure system;

further, the outer segmented mold b of the annular tread segmented mold is provided with various sensors, including but not limited to a pressure sensor and a temperature sensor.

Further, when the outer segmented mold a is matched with the outer guide shaft, the lower end face of the outer segmented mold b is contacted with the bottom plate;

furthermore, the inner surface of the inner segmented mold comprises an inner side plane, an arc surface a, an arc surface b and a step side surface of the inner segmented mold.

Preferably, the inner surface of the outer segmented mold a is connected with the outer surface I of the buckle of the outer segmented mold b, the outer surface II of the buckle of the outer segmented mold b, the outer surface III of the buckle of the outer segmented mold b, the outer surface IV of the buckle of the outer segmented mold b and the middle part of the outer surface of the outer segmented mold b in a clamping manner;

furthermore, when the outer segmented mold a and the outer segmented mold b are assembled, the side surface of the outer segmented mold a is flush with two ends of the middle part of the outer surface of the outer segmented mold b; the upper surface of the outer segmented mold a clamps the upper surface of the outer segmented mold b;

further, the outer surface I of the buckle of the outer segmented mold b is an inner inclined surface;

furthermore, two ends of the outer segmented mold b are provided with a locking mechanism I and a locking mechanism II, the locking mechanism I is of a convex structure, and the locking mechanism II is of a concave structure; two adjacent outer segmented molds b can be fixed in the circumferential direction through a locking mechanism I and a locking mechanism II;

further, when the annular tire tread segmented mold is in a closed state, the circular arc end surface of the outer periphery of the inner segmented mold is in surface contact fit with the circular arc end surface of the inner periphery of the outer segmented mold b;

furthermore, the guide shaft is connected with the inner segmented mold in a sliding manner along the vertical direction through a support;

furthermore, the lower support surface is in sliding connection with the surface of the inner cavity of the inner segmented mold;

furthermore, one side of the surface of the inner cavity of the inner segmented mold is opened, and the other side is closed;

furthermore, the sub-side surface c and the sub-side surface d are respectively connected with the inner loose die inner side surface I in a sliding mode along the vertical direction;

further, the outer support device comprises an outer segmented mold b, an outer segmented mold a and an outer guide shaft from inside to outside in sequence;

furthermore, the number of the outer segmented molds a is six, and the outer guide shafts are movably connected with the outer segmented molds a;

furthermore, an inclined T-shaped wedge part is arranged on the outer side of the outer segmented mold a, and the inclined T-shaped wedge part is in sliding connection with an inclined T-shaped space formed by gaps among the middle surface I, the middle surface II, the middle surface III and the middle surface IV of the outer guide shaft;

furthermore, the inclined contact surface of the outer guide shaft is movably connected with the outer side surface I of the outer segmented mold a, the outer side surface II of the outer segmented mold a and the outer side surface III of the outer segmented mold a;

further, an outer guide shaft in the outer support device is connected with the bottom plate at the lower part;

further, the lower surface of the guide shaft is a regular hexagon, and the regular hexagon surface is externally tangent to the middle through hole of the bottom plate, so that the regular hexagon surface passes through the middle through hole of the bottom plate;

preferably, the outer guide shaft in the outer support device is fixedly connected with the bottom plate at the lower part;

further, an outer guide shaft in the outer support device is fixedly connected with the bottom plate at the lower part through a lower bottom column;

as a second preferred embodiment of the present invention, the outer guide shaft in the outer support device is connected with the bottom plate in a sliding manner at the lower part through the lower part of the lower bottom column in the circumferential direction;

as a third preferred embodiment of the present invention, in order to facilitate the installation and the disassembly, the outer guide shaft is slidably connected to the bottom plate at the lower part along the vertical direction, and the outer guide shaft can move up and down in the vertical direction of the bottom plate;

furthermore, six holes are matched with the outer guide shaft in the circumferential direction of the bottom plate, the inner peripheral surface parts of the six holes are clamping structures, and when the outer guide shaft can move up and down in the vertical direction of the bottom plate, the clamping structures can fix the outer guide shaft along the vertical direction of the bottom plate;

furthermore, the number of the outer segmented molds b is six, the upper parts of the outer segmented molds b are provided with connecting ports, and the bolts are inserted into the connecting ports to fixedly connect the two adjacent outer segmented molds b;

preferably, the locking mechanism III on the upper part of the outer segmented mold b is provided with a connecting port, the connecting port is along the horizontal plane direction, and the plug pin is annular and is inserted into the connecting port.

Preferably, for the better six outer loose mould b of clamp, locking mechanism III on outer loose mould b upper portion is provided with connection port, connection port is along vertical face direction, and the bolt is rectangular form, inserts connection port, the side plane of outer loose mould b is provided with vertical passageway, and with the vertical passageway of the connection port that locking mechanism III top set up on same straight line, the vertical passageway is inserted to the bolt, also has the opening along the horizontal plane direction, and the bolt is fixed with the ring form pin in both sides.

Preferably, when the whole guide device moves upwards to the highest position along the vertical direction, a cavity is formed, when glue is filled in the cavity, the middle hole of the upper sealing cover A is tightly clamped on the arc end surface of the periphery in the middle of the inner segmented mold (namely the outer convex surface of the inner segmented mold), and the outer segmented mold b is tightly clamped on the outer periphery of the upper sealing cover A; the horizontal surface of the upper sealing cover A can be in surface contact fit with the end surface of the step of the inner segmented mold to form a space.

Furthermore, it should be noted that the inner stepped end surface of the outer segmented mold b and the inner circumferential surface ii of the outer segmented mold may be of a vertically symmetrical structure, so that an upper sealing cover a of the same size may be added at the lower part of the outer segmented mold b to serve as a lower base plate, and an annular cavity is formed by the upper base plate, the lower base plate and the inner circumferential surface i of the outer segmented mold, so as to meet the requirement of molding an annular tread, rather than a stepped ring surface.

The invention also relates to short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment, which comprises a rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold, a segmented mold upper cover traction device (hydraulic cylinder), a segmented mold core driving device (hydraulic cylinder), a rubber injection machine and an injection machine transmission device;

the annular segmented tread extrusion integrated equipment is fixed on a rack and is sequentially connected with a segmented mold upper cover traction device (a hydraulic cylinder), a rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold, a segmented mold core driving device (the hydraulic cylinder), a rubber injection machine and an injection machine transmission device from right to left;

preferably, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold is matched with the segmented mold core driving device and the segmented mold upper cover traction device, so that the separation of the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold inner core part and the radial movement of the sliding block part can be realized, and the injection molding vulcanization process can be realized at one time.

Preferably, the right end of a traction device (hydraulic cylinder) of the upper cover of the segmented mold is fixed on the plane of the right end of the frame, and the right side of the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold is connected with the traction device (hydraulic cylinder) of the upper cover of the segmented mold;

further, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold comprises a base fixed on a rack, a segmented mold core driving device (a hydraulic cylinder) is fixed on an inner core driving push plate, a hydraulic cylinder rod of the segmented mold core driving device (the hydraulic cylinder) is fixed with the base through threads, a push plate transmission rod arranged on the inner core driving push plate penetrates through the base and is connected with a transmission rod on an inner core of the base through threads to form a screw pair;

furthermore, the push plate transmission rod penetrates through three holes formed in the base, and the push plate transmission rod is in clearance fit with the holes;

furthermore, the rubber injection machine is fixed on the frame, and an extruder commonly used in the prior art can be used as injection equipment;

further, the rubber injection machine is in transmission connection with a speed reducer of the transmission device of the injection machine;

preferably, the rubber injection machine is connected with an injection machine control system and an injection machine temperature control system; the transmission device of the injection machine comprises a motor which is connected with a speed reducer and fixed on a frame;

further, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold can produce an annular vulcanized tread;

preferably, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold comprises an arch-shaped seat and pattern block equipment ligand, an upper cover small sliding block, an upper cover large sliding block, an upper cover inner core, a base small sliding block and a base large sliding block;

preferably, the top of the upper cover of the segmented mold is connected with a traction device (a hydraulic cylinder) of the upper cover of the segmented mold, and the outer side wall of the upper cover is provided with an upper cover mold opening T-shaped block which is matched with a T-shaped groove of the rack;

the top of the inner wall of the upper cover of the segmented mold is provided with three upper cover mold opening delay rods for controlling the shrinkage of the inner core sliding block of the upper cover and a sliding block upper cover guide rail (matched plate) for controlling the radial movement of the inner core sliding block, and the small upper cover sliding block and the large upper cover sliding block are respectively provided with a small upper cover sliding block transverse T-shaped block and a large upper cover sliding block transverse T-shaped block which are matched with the small upper cover sliding block and the large upper cover sliding block;

the circumference of the inner side wall of the upper cover of the segmented mold is provided with an arched seat guide rail (matched with a baffle), and ten arched seats and pattern block equipment are matched with the arched seat guide rail and the pattern block equipment.

Furthermore, an included angle between the arch-shaped seat guide rail (provided with the baffle) and the upper cover traction device (hydraulic cylinder) of the segmented mold is 15 degrees in the axial direction;

further, the upper cover die opening delay rod is connected with the upper cover of the segmented die into a whole through threads and is connected with a traction device (a hydraulic cylinder) of the upper cover of the segmented die; the other end is matched and fixedly connected with a hole formed in the upper part of the upper cover inner core; the fixed connection mode can be realized by the way that the lower end of the upper cover die opening delay rod is provided with threads, penetrates through a hole formed in the upper part of the upper cover inner core, and is fixed at the lower end by one or more combined modes in the prior art, such as the matching of bolts with the threads, and the like, wherein the diameter of the bolts is larger than that of the holes;

preferably, the number of the holes formed in the upper part of the inner core of the upper cover is three;

preferably, the arch-shaped seat and the pattern block equipment are connected through a screw, the T-shaped block of the arch-shaped seat is wound with an electromagnetic coil for heating, the pattern block can be replaced according to different retreaded treads, vent holes are processed on the pattern block, and gas in a mold cavity is discharged outside a mold through the vent holes of the pattern block and a gap between the arch-shaped seat and an upper cover of the segmented mold during injection molding of the treads.

The upper part and the back of the upper cover small sliding block are respectively provided with an upper cover small sliding block transverse T-shaped block and an upper cover small sliding block longitudinal T-shaped block which are respectively matched with a sliding block upper cover guide rail (matched pressure plate) of the upper cover of the segmented mold and an upper cover small sliding block guide rail (matched pressure plate) of the upper cover inner core to control the radial contraction of the upper cover small sliding block;

the small upper cover sliding block and the large base sliding block groove are matched together to form a flow channel, wherein the angle of the longitudinal T-shaped block of the small upper cover sliding block on the back of the small upper cover sliding block is larger than that of the longitudinal T-shaped block of the large upper cover sliding block, so that the radial movement amount of the small upper cover sliding block is larger than that of the large upper cover sliding block.

Further, the angle of the longitudinal T-shaped block of the small upper cover sliding block is 17 degrees, and the angle of the longitudinal T-shaped block of the large upper cover sliding block is 12 degrees;

preferably, the upper part and the back of the upper cover large sliding block are respectively provided with an upper cover large sliding block transverse T-shaped block and an upper cover large sliding block longitudinal T-shaped block which are respectively matched with a sliding block upper cover guide rail (matched pressure plate) of the upper cover of the segmented mold and an upper cover large sliding block guide rail (matched pressure plate) of the upper cover inner core; the radial contraction of the large upper cover sliding block is controlled, and the large upper cover sliding block is matched with the small base sliding block groove to form a flow channel.

Preferably, the upper cover inner core is respectively matched with the three upper cover large sliding blocks and the three upper cover small sliding blocks, the different angles of the inclined planes of the side walls play a role in controlling the radial shrinkage of the sliding blocks, the shrinkage of the upper cover small sliding blocks is greater than that of the upper cover large sliding blocks, the interference between the sliding blocks is avoided, the upper cover inner core is matched with the upper cover mold opening delay rod, the upper cover inner core is separated from the base inner core after the pattern blocks are completely opened, the scratch of tread patterns is avoided, the quality of the tread patterns is ensured, and meanwhile, the upper cover belt of the segmented mold is moved to radially shrink the three upper cover small sliding blocks and the three upper cover large sliding blocks, so that the inner wall of the annular tread is demol.

Preferably, the base inner core is respectively matched with the three base small sliding blocks and the three base large sliding blocks, different angles of the side wall inclined planes play a role in controlling the radial shrinkage of the sliding blocks, and the shrinkage of the base small sliding blocks is greater than that of the base large sliding blocks, so that the interference between the sliding blocks is avoided;

the bottom of the inner core of the base is matched with a rubber injection nozzle through a pouring gate, rubber passes through a flow channel penetrating through the inner core of the base, six radial flow channels are distributed on an interface of the inner core of the upper cover and the inner core of the base, and then enters a mold cavity for molding through flow channel grooves on the large sliding block of the base and the small sliding block of the base, after the upper cover of the segmented mold drives the inner core of the upper cover to open a safe distance, the upper cover of the segmented mold reversely pushes the base, the inner core drives a push plate (a hydraulic cylinder fixing plate), the inner core drives the push plate (the hydraulic cylinder fixing plate) to axially move the inner core of the base through a push plate transmission rod to drive the three small sliding blocks of the base and the three large sliding blocks of the base to radially contract, so that the inner wall of the annular tire tread.

Preferably, the small base sliding block is provided with a transverse T-shaped block at the bottom and a longitudinal T-shaped block at the back, and the transverse T-shaped block is matched with a sliding block base guide rail (distributing plate) and a base small sliding block guide rail (distributing plate) of a base inner core respectively to control the radial shrinkage of the sliding block, the large upper cover sliding block is matched with a base small sliding block groove to form a flow channel, wherein the longitudinal T-shaped block angle of the base small sliding block at the back of the small base sliding block is larger than that of the longitudinal T-shaped block of the base large sliding block, so that the radial movement amount of the base small sliding block is larger than that of the.

The big slider of base, there is the horizontal T type piece of the big slider of base bottom, and there is the vertical T type piece of the big slider of base at the back, respectively with the big slider guide rail of base (fitting plate) cooperation of slider base guide rail (fitting plate) and base inner core, the radial shrink of control slider, the little slider of upper cover forms the runner with the big slider groove fit of base, wherein the big slider of base back base vertical T type piece angle of the big slider of base is less than the vertical T type piece angle of the little slider of base for the radial amount of exercise of the big slider of base is less than the little slider of base.

Further, the angle of the longitudinal T-shaped block of the small base sliding block is 17 degrees, and the angle of the longitudinal T-shaped block of the large base sliding block is 12 degrees;

preferably, the top of the base is provided with six sliding block base guide rails (pressure distribution plates) which are matched with the transverse T-shaped block of the small sliding block of the base and the transverse T-shaped block of the large sliding block of the base to control the small sliding block of the base and the large sliding block of the base to shrink radially, a hole is formed in the center of the base to be in clearance with a nozzle of a rubber injection machine, three holes are formed to enable a push plate transmission rod to be connected with an inner core of the base, the bottom of the base is connected with a push rod of a driving device (hydraulic cylinder) of a mold.

Preferably, the inner core driving push plate (hydraulic cylinder fixing plate) is connected with the base inner core through a push plate transmission rod, the segmented mold core driving device (hydraulic cylinder) cylinder body is fixed on the inner core driving push plate (hydraulic cylinder fixing plate), and the segmented mold core driving device (hydraulic cylinder) reversely pushes the inner core driving push plate (hydraulic cylinder fixing plate) to drive the base inner core to move during work.

Furthermore, the upper cover and the base of the segmented mold can rotate; at the moment, the upper cover of the segmented mold is driven by a gear in the prior art and a motor reduction box drives the gear, so that the upper cover of the segmented mold is driven.

Preferably, the base and the segmented mold upper cover are not fixed on the frame, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold can integrally rotate 360 degrees around a horizontal axis, and two ends of the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold are supported on the frame by the structures in the prior art such as bearings.

Furthermore, the upper cover of the segmented mold is connected with the base through a buckle structure, so that the sealing performance of the upper cover and the base during rotation is guaranteed.

In a preferred embodiment, the sprue part is provided with a sprue bush which is fixedly connected with the base and can rotate;

the invention also relates to an extrusion method of the short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment, namely a manufacturing method of the short fiber radial orientation enhanced annular segmented tread, which comprises the following steps:

1) when the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold is in a mold closing non-working state, the rubber injection machine injects rubber in a viscous state into a runner through a base and an inner core driving push plate (hydraulic cylinder fixing plate) clearance hole; after the rubber is filled in the whole inner cavity of the mold, the rubber injection machine maintains pressure, an electromagnetic heating control system of the mold starts to work, an electromagnetic coil wound on an arch-shaped seat and a pattern block assembling body heats the arch-shaped seat, and the arch-shaped seat heats the pattern block through heat conduction so as to heat and vulcanize the rubber;

2) after the vulcanization process is finished, firstly, the upper cover pulls the upper cover pulling device (hydraulic cylinder) of the segmented mold to work, and the upper cover of the segmented mold is opened; the upper cover of the segmented mold moves axially on the frame due to the T-shaped block of the upper cover opening mold, and the arch-shaped seat and the pattern block equipment are slowly opened under the action of the arch-shaped seat guide rail (matched baffle), so that the pattern block is separated from the tread pattern; the large upper cover sliding block and the small upper cover sliding block axially contract under the action of the small upper cover sliding block guide rail (pressure distribution plate) of the large upper cover sliding block guide rail (pressure distribution plate) due to the axial movement of the traction force of the sliding block upper cover guide rail (pressure distribution plate), wherein the contraction speed of the small sliding block is higher than that of the large sliding block, so that the inner wall of the tire surface is separated from the sliding block; when the pattern blocks, the upper cover sliding blocks and the tread are completely demoulded, the upper cover inner core is separated from the base inner core under the driving of the upper cover mold opening delay rod; completing the die opening of the upper cover part;

3) when the upper cover is opened by a safe distance, the segmented mold core driving device (hydraulic cylinder) is connected with the base, the cylinder body is connected with the inner core driving push plate (hydraulic cylinder fixing plate), the base is fixed with the rack, and the segmented mold core driving device (hydraulic cylinder) reversely pushes the inner core driving push plate (hydraulic cylinder fixing plate) when working, so that the inner core of the base axially moves through the push plate transmission rod, the base large slide block guide rail (matched plate) on the inner core of the base, and the base small slide block guide rail (matched plate) and the slide block base guide rail (matched plate) enable the base small slide block base large slide block to radially contract, wherein the contraction speed of the base small slide block is faster than that of the base large slide;

4) simultaneously, the axial movement of the inner core of the base breaks a rubber material handle at the joint of the flow channel and the rubber injection machine, and the annular tire tread is demoulded;

5) after the annular tire tread and the flow channel are taken out by using manpower or a mechanical arm, a segmented mold core driving device (a hydraulic cylinder) returns to enable the inner core of the base to return to the small sliding block of the base and the large sliding block of the base; then, an upper cover traction device (a hydraulic cylinder) of the segmented mold is used, and the arch-shaped seat and the pattern block are provided with a ligand, an upper cover inner core, an upper cover small sliding block and an upper cover large sliding block which automatically return to the original position through the limit of the base and the base inner core; the whole process is completed.

Preferably, in the step 1), the rubber is short fiber reinforced rubber, preferably polyester fiber, and the short fiber reinforced rubber is extruded and molded by the device for vulcanization to obtain a short fiber radial orientation reinforced rubber product.

The technical scheme of the invention at least has the following advantages and beneficial effects:

1. according to the invention, through the inclined T-shaped support, when the inclined T-shaped support moves to the lowest position and the highest position along a space channel formed by the guide shaft, the inner segmented mold and the outer support device can respectively form a die space and a mutual contact state;

2. the device is easy to disassemble, and the working process of the annular tire tread segmented mold is realized by utilizing the geometric relation and the T-shaped support;

3. the T-shaped support moves along the groove by moving the guide shaft, so that the opening and closing of the forming cavity of the annular tread segmented mold are controlled, and the rubber material can enter the next prevulcanization process;

4. according to the invention, the vertical movement of the guide shaft is changed into the circumferential horizontal movement of the inner segmented mold through the T-shaped support, and fastening parts such as limit bolts are not used, so that the structure is simple and the operation is easy;

5. the invention reduces fastening components such as bolts, screws and nuts, positioning pieces and the like as much as possible through the movable connection relationship among the components, increases the detachability, has high interchangeability, can cast the components and can be used for large-scale industrial production;

6. the circular end surface of the upper sealing cover A is in contact fit with the end surface of the step of the inner segmented mold to form a space, the T-shaped support moves to enable the inner segmented mold to move towards the center, so that the circumferential radial direction of the cavity of the annular segmented mold is changed, the thickness of the annular tire tread is changed, and the annular precured tire treads with different thicknesses are manufactured;

7. the annular vulcanized tread produced by the scheme two of the invention has the characteristics of one-step molding, high strength, no joint and the like when the retreaded tire is used;

8. the second scheme of the invention can integrally take out the runner during working, thus saving the process of manually cleaning the rubber runner;

9. the second scheme of the invention has high electromagnetic vulcanization efficiency;

10. according to the second scheme, the mold is opened orderly, the inner core can be contracted, and the product is prevented from being pulled;

11. the second scheme of the invention has high full-automatic production efficiency;

12. the second mould is transversely arranged, so that the rubber injection machine, the rubber extrusion machine and other existing machines are convenient to use.

13. The second scheme of the invention overcomes the technical problem that the orientation degree is reduced due to the change of the short fiber movement direction when the short fiber sizing material is vulcanized in a tire segmented mold in the prior art, improves the radial orientation degree of the short fiber reinforced tread rubber, and provides a novel short fiber radial orientation method;

14. the second scheme of the invention can directly injection mold the annular tire tread, and overcomes the problems that the annular tire tread is not easy to take out after injection molding, the pressure loss is overlarge during rubber injection, the precured tire tread cannot be well molded, and the production process is complicated in the prior art.

Drawings

FIG. 1 is an overall oblique two-dimensional three-dimensional view of a preferred embodiment of the present invention;

FIG. 2 is an overall three-dimensional view of the oblique two-dimensional bottom surface in a preferred embodiment of the invention;

FIG. 3 is a view of a support structure in accordance with a preferred embodiment of the present invention;

FIG. 4 is a view showing a construction of a guide shaft in a preferred embodiment of the present invention;

FIG. 5 is a bottom plan view of a preferred embodiment of the present invention;

FIG. 6 is a three-dimensional view of an inner segmented mold in a preferred embodiment of the invention;

FIG. 7 is a three-dimensional view of an outer guide shaft in a preferred embodiment of the invention;

FIG. 8 is a top three-dimensional view of an outer piston ring b in accordance with a preferred embodiment of the present invention;

FIG. 9 is a top three-dimensional view of an outer piston ring b in accordance with another preferred embodiment of the present invention;

FIG. 10 is a three-dimensional view of the outer piston ring b from the inside to the outside in a preferred embodiment of the invention;

FIG. 11 is a three-dimensional view of an outer piston ring a in accordance with a preferred embodiment of the present invention;

FIG. 12 is a three-dimensional view of the upper closure A in a preferred embodiment of the present invention;

FIG. 13 is a three-dimensional view of a small inner segmented mold in a preferred embodiment of the invention;

FIG. 14 is a three-dimensional view of a short fiber radial orientation enhanced annular segmented tread extrusion integration apparatus of a second aspect of the present invention;

FIG. 15 is a top view of a short fiber radial orientation enhanced annular segmented tread extrusion integration apparatus of a second aspect of the present disclosure;

FIG. 16 is a structural component of a segmented mold part for electromagnetic vulcanization of an annular tread of a rubber injection retreaded tire according to a second embodiment of the invention;

FIG. 17 is a three-dimensional view of a core portion of a closure according to a second embodiment of the present invention; (a) the three-dimensional drawing is a three-dimensional drawing with an inner core and a sliding block, and (b) the three-dimensional drawing without the inner core and the sliding block;

FIG. 18 is a view showing a fitting structure of an inner core portion and a slider portion in a second aspect of the present invention;

FIG. 19 is a view showing a structure of a base slide and a base part in accordance with a second embodiment of the present invention;

FIG. 20 is a view of the construction of the push plate drive link and base portion of a second embodiment of the present invention;

FIG. 21 is a view of the configuration of the core driving push plate and base portion of the push plate drive link of the second embodiment of the present invention;

FIG. 22 is a view showing a construction of a core section, a slide block section and a core drive pusher section in accordance with a second embodiment of the present invention;

FIG. 23(a) is a view showing a structure of a large upper cover slider and a small base slider according to a second embodiment of the present invention;

FIG. 23(b) is a view showing a structure of a small upper cover slider and a large base slider according to a second embodiment of the present invention;

FIG. 24 is a view showing a structure of the combination of an upper cover core and a base core according to a second embodiment of the present invention;

fig. 25 is a structural view of an upper cover of a segmented mold according to another embodiment of the second aspect of the present invention;

FIG. 26 is a view showing the construction of a base in accordance with another embodiment of the second aspect of the present invention;

fig. 27 is a view of a snap structure between a cover structure and a base structure of a segmented mold according to another embodiment of the second aspect of the present invention;

fig. 28 is a full sectional view of an electromagnetic vulcanization segmented mold for a rubber injection retreaded tire annular tread according to another embodiment of the second aspect of the present invention;

wherein, the part names corresponding to the reference numbers are as follows:

1-support, 2-inner segmented mold, 3-plug pin, 4-outer segmented mold a, 5-outer guide shaft, 6-bottom plate, 7-guide shaft, 8-outer segmented mold b, 9-control system, 10-temperature control pressure system, 11-support upper surface, 12-support protrusion side surface, 13-support vertical surface, 14-support main visual surface, 15-support protrusion lower surface, 16-support lower surface, 17-support rear visual surface, 21-inner segmented mold clamping surface, 22-inner segmented mold step end surface, 231-inner side plane, 232-arc surface a, 233-arc surface b, 234-inner segmented mold step side surface, 24-inner segmented mold inner side surface I, 25-inner segmented mold cavity surface, 41-inclined 'T' wedge-shaped part, 421-outer side surface I of outer segmented mold a, 422-outer side surface II of outer segmented mold a, 423-outer side surface III of outer segmented mold a, 43-outer side surface of outer segmented mold a, 44-inner surface of outer segmented mold, inner surface of outer segmented mold a, 45-upper surface of outer segmented mold a, 51-inclined contact surface of outer guide shaft, 521-middle surface I, 522-middle surface II, 523-middle surface III, 524-middle surface IV, 53-lower bottom pillar, 71-inclined cylindrical surface, 711-inclined cylindrical surface outer side surface, 712-inclined cylindrical surface middle surface, 721-branched side surface a, 722-branched side surface b, 723-branched side surface c, 724-branched side surface d, 73-upper surface of inner stepped shaft of guide shaft, 74-outer surface of inner stepped shaft of guide shaft, 75-a second step end face of the guide shaft, 811-a locking mechanism I, 812-a locking mechanism II, 813-a locking mechanism III, 821-an outer loose die b buckle outer surface I, 822-an outer loose die b buckle outer surface II, 823-an outer loose die b buckle outer surface III, 824-an outer loose die b buckle outer surface IV, 83-the middle part of the outer loose die b outer surface, 841-an outer loose die inner circumferential face II, 842-an outer loose die inner step end face, 843-an outer loose die inner circumferential face I, 85-an outer loose die b lower end face, A-an upper sealing cover and 2' -a small inner loose die; 2-1-small inner segmented mold outer inclined surface;

100-rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold, 200-segmented mold upper cover traction device (hydraulic cylinder), 300-segmented mold core driving device (hydraulic cylinder), 400-rubber injection machine, 500-injection machine transmission device, 120-arch base and pattern block equipment matching body, 130-upper cover small slide block, 140-upper cover large slide block, 150-upper cover inner core, 200-segmented mold upper cover traction device (hydraulic cylinder), 110-segmented mold upper cover, 111-upper cover mold opening delay rod, 112-upper cover mold opening T-shaped block, 113-arch base guide rail (matched baffle), 114-slide block upper cover guide rail (matched pressure plate), 131-upper cover small slide block transverse T-shaped block, 141-upper cover large slide block transverse T-shaped block, 151-upper cover inner core delay hole (matched baffle), 152-upper cover large slide block guide rail (pressure distribution plate), 153-upper cover small slide block guide rail (pressure distribution plate), 160-base inner core, 161-runner, 170-base small slide block, 180-base large slide block, 190-base, 162-base large slide block guide rail (pressure distribution plate), 163-base small slide block guide rail (pressure distribution plate), 164-transmission rod connecting screw thread, 170-base small slide block, 171-base small slide block transverse T-shaped block, 180-base large slide block, 181-base large slide block transverse T-shaped block, 191-inner core driving push plate (hydraulic cylinder 300 fixed plate), 192-push plate transmission rod, 193-slide block base guide rail (pressure distribution plate), 132-upper cover small slide block longitudinal T-shaped block, 142-upper cover large slide block longitudinal T-shaped block, 171-base small slide block transverse T-shaped block, 172-base small slide block longitudinal T-shaped block, 181-base large slide block transverse T-shaped block, 182-base large slide block longitudinal T-shaped block.

Detailed Description

The invention is described below with reference to the accompanying drawings and specific embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.

Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making an invasive task, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships in which the products of the present invention are usually placed when in use. Such terms are merely used to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

[ solution one ]

As shown in fig. 1-13, the annular tire tread segmented mold sequentially comprises a guide device, an inner movable device and an outer support device from inside to outside, wherein the lower part of the outer support device is connected with a bottom plate 6, the guide device is connected with the inner movable device, the guide device can move up and down along the vertical direction, and the inner movable device can move along the radius direction of a horizontal circular surface under the action of the guide device;

further, the guide device sequentially comprises a guide shaft 7 and a support 1 movably connected with the guide shaft 7 from inside to outside;

preferably, the periphery of the guide shaft 7 is composed of six trapezoidal prisms, the guide shaft is fixed on the second stepped end face 75, and the surface of the guide shaft 7 further comprises the upper bottom faces of the six trapezoidal prisms, the lower bottom face of the guide shaft 7, an inclined cylindrical face 71, a sub-side face a 721, a sub-side face b 722 and a guide shaft inner stepped shaft upper surface 73;

preferably, twelve inclined cylindrical surfaces 71 are provided, each two inclined cylindrical surfaces 71 form a groove inwards and are arranged on two sides of the irregular prism, and the inclined cylindrical surfaces 71 form an angle of 45 degrees with the central axis direction of the guide shaft 7 respectively;

preferably, the outer lateral surface 74 of the inner stepped shaft of said guide shaft is slidingly coupled with the upper support surface 11 of the support 1; the lower surface 15 of the supporting protrusion is slidably connected with the outer side surface 711 of the inclined cylindrical surface;

further, the guide shaft 7 and the support 1 form a guide rod sliding block mechanism;

furthermore, the number of the supports 1 is six, the supports are connected with the guide shafts 7 in a sliding mode inwards, and the supports are connected with the six inner segmented molds 2 in a sliding mode outwards;

preferably, when the annular tread segmented mold is in a die stamping state, the supporting main visual surface 14 is in contact fit with a guide shaft second step end surface 75 in the guide shaft 7;

further, the supporting protrusion side surface 12 of the support 1 is slidably connected with the inclined cylindrical surface middle surface 712;

further, the inclined cylindrical surface 71 is slidably connected with the support 1, the support 1 is a similar T-shaped body, the main supporting surface 14 of the support 1 is T-shaped, the included angle between the upper supporting surface 11 and the horizontal plane is negative 45 degrees, the included angle between the lower supporting protrusion surface 15 and the horizontal plane is 45 degrees, the side surface 12 of the supporting protrusion is perpendicular to the upper supporting surface 11 and the lower supporting protrusion surface 15, and the lower supporting protrusion surface 15 is perpendicular to the vertical supporting surface 13;

further, when the annular tread segmented mold is in a closed state, the support rear view surface 17 of the support 1 moves upwards to be aligned with the upper surface of the guide shaft 7;

further, the inner movable device comprises an inner segmented mold 2, and the inner segmented mold 2 is inwards movably connected with the support 1; when the guide device moves downwards to the lowest position, the arc end surface of the periphery of the inner segmented mold 2 is in surface contact with an outer segmented mold b 8 in the outer support device, and the inner segmented mold 2 is clamped with the outer segmented mold b 8;

further, when the guiding device moves downwards to the lowest position, the inner segmented mold 2 can be clamped with the outer segmented mold inner stepped end surface 842 and the outer segmented mold inner circumferential surface II 841 in the outer segmented mold b 8 through the inner segmented mold stepped end surface 22 and the inner segmented mold clamping surface 21;

further, when the guide is moved downward to the lowermost position, the inner peripheral surface i 843 of the outer piston ring can contact the outer peripheral surface of the inner piston ring 2.

Preferably, the inner circumferential surface I843 of the outer piston is provided with tire patterns;

further, the annular tire tread segmented mold sequentially comprises six guide shafts 7, supports 1, an inner segmented mold 2, an outer segmented mold a 4 and an outer guide shaft 5 from inside to outside, the six outer guide shafts 5 are respectively arranged on the upper parts of horizontal planes of six extending parts of a bottom plate 6, the outer guide shaft 5 is movably connected with the outer segmented mold a 4, the outer segmented mold a 4 is movably connected with the outer side surface of the outer segmented mold b 8 along the direction of an outer curved surface circle and is fixedly connected along the vertical direction, the six inner segmented molds 2 are provided, the circular arc end surface of the periphery of the inner segmented mold 2 is movably connected with the inner side surface of the outer segmented mold b 8 along the direction of an inner curved surface circle and is fixedly connected along the vertical direction, and the six bolts 3 are respectively fixedly connected with the six outer segmented molds b 8;

further, a guide shaft 7 of the annular tread segmented mold is connected with a control system 9, and an outer segmented mold b 8 is connected with a temperature control pressure system 10;

further, the outer segmented mold b 8 of the annular tread segmented mold is provided with various sensors, including but not limited to a pressure sensor and a temperature sensor.

Further, when the outer segmented mold a 4 is matched with the outer guide shaft 5, the lower end face 85 of the outer segmented mold b 8 is contacted with the bottom plate 6;

further, the inner surface of the inner segmented mold 2 includes an inner side plane 231, an arc surface a232, an arc surface b233, and an inner segmented mold step side 234.

Preferably, the inner surface 44 of the outer segmented mold a is connected with an outer segmented mold b buckle outer surface I821, an outer segmented mold b buckle outer surface II 822, an outer segmented mold b buckle outer surface III 823, an outer segmented mold b buckle outer surface IV 824 and an outer segmented mold b outer surface middle part 83 in a clamping manner;

further, when the outer segmented mold a 4 is assembled with the outer segmented mold b 8, the side surface 43 of the outer segmented mold a is flush with two ends of the middle part of the outer surface of the outer segmented mold b 8; the upper surface 45 of the outer segmented mold a clamps the upper surface of the outer segmented mold b 8;

further, the outer surface I821 of the buckle of the outer segmented mold b is an inner inclined surface;

furthermore, two ends of the outer segmented mold b 8 are provided with a locking mechanism I811 and a locking mechanism II 812, the locking mechanism I811 is of a convex structure, and the locking mechanism II 812 is of a concave structure; two adjacent outer segmented molds b 8 can be fixed in the circumferential direction through a locking mechanism I811 and a locking mechanism II 812;

further, when the annular tire tread segmented mold is in a closed state, the circular arc end surface of the outer periphery of the inner segmented mold 2 is in surface contact fit with the circular arc end surface of the inner periphery of the outer segmented mold b 8;

further, the guide shaft 7 is connected with the inner segmented mold 2 in a sliding mode along the vertical direction through the support 1;

further, the lower support surface 16 is in sliding connection with the inner cavity surface 25 of the inner segmented mold;

further, the inner cavity surface 25 of the inner segmented mold is opened at one side and closed at the other side;

further, the branched side surface c 723 and the branched side surface d 724 are respectively connected with the inner loose die inner side surface i 24 in a sliding manner along the vertical direction;

further, the outer support device comprises an outer segmented mold b 8, an outer segmented mold a 4 and an outer guide shaft 5 in sequence from inside to outside;

furthermore, the number of the outer segmented molds a 4 is six, and the outer guide shafts 5 are movably connected with the outer segmented molds a 4;

furthermore, an inclined 'T' wedge part 41 is arranged on the outer side of the outer segmented mold a 4, and the inclined 'T' wedge part 41 is in sliding connection with an inclined 'T' space formed by gaps among a middle surface I521, a middle surface II 522, a middle surface III 523 and a middle surface IV524 of the outer guide shaft 5;

further, the inclined contact surface 51 of the outer guide shaft is movably connected with the outer side surface I421 of the outer segmented mold a, the outer side surface II 422 of the outer segmented mold a and the outer side surface III 423 of the outer segmented mold a;

further, an outer guide shaft 5 in the outer support device is connected with a bottom plate 6 at the lower part;

further, the lower surface of the guide shaft 7 is a regular hexagon, and the regular hexagon is circumscribed to the middle through hole of the bottom plate 6, so that the regular hexagon passes through the middle through hole of the bottom plate 6;

preferably, the outer guide shaft 5 in the outer support device is fixedly connected with the bottom plate 6 at the lower part;

further, an outer guide shaft 5 in the outer supporting device is fixedly connected with a bottom plate 6 at the lower part through a lower bottom pillar 53;

as a second preferred embodiment of the present invention, the outer guide shaft 5 of the outer support device is connected with the bottom plate 6 in a sliding way at the lower part through the lower part of the lower bottom pillar 53;

as a third preferred embodiment of the present invention, in order to facilitate the installation and the disassembly, the outer guide shaft 5 is slidably connected to the bottom plate 6 at the lower part along the vertical direction, and the outer guide shaft 5 can move up and down along the vertical direction of the bottom plate 6;

furthermore, six holes are matched with the outer guide shaft 5 in the circumferential direction of the bottom plate 6, the inner peripheral surface parts of the six holes are clamping structures, and when the outer guide shaft 5 can move up and down in the vertical direction of the bottom plate 6, the clamping structures can fix the outer guide shaft 5 in the vertical direction of the bottom plate;

furthermore, the number of the outer segmented molds b 8 is six, the upper parts of the outer segmented molds b 8 are provided with connecting ports, and the bolts 3 are inserted into the connecting ports to fixedly connect the two adjacent outer segmented molds b 8;

as shown in fig. 8, preferably, the locking mechanism iii 813 on the upper portion of the outer segmented mold b 8 is provided with a connection port, and the connection port is along the horizontal plane direction, and the plug pin 3 is in a circular ring shape and is inserted into the connection port.

As shown in fig. 9, as another preferred embodiment of the present invention, in order to better clamp six outer segmented molds b 8, a connection port is arranged on a locking mechanism iii 813 on the upper portion of the outer segmented mold b 8, the connection port is along the vertical plane direction, a plug pin 3 is in a strip shape and is inserted into the connection port, a vertical channel is arranged on the side plane of the outer segmented mold b 8, the vertical channel is in the same straight line with the vertical channel of the connection port arranged above the locking mechanism iii 813, the plug pin 3 is inserted into the vertical channel, and is also provided with an opening along the horizontal plane direction, and the plug pin 3 is fixed by a circular ring-shaped pin on both sides.

As shown in fig. 12, when the whole guide device moves upward to the highest position along the vertical direction, i.e. a cavity is formed, and when glue is filled into the cavity, the middle hole of the upper sealing cover a clamps the arc end surface of the periphery in the middle of the inner segmented mold 2 (i.e. the convex surface of the inner segmented mold 2), and the outer segmented mold b 8 clamps the periphery of the upper sealing cover a; the horizontal surface of the upper sealing cover A can be in surface contact fit with the stepped end surface 22 of the inner segmented mold to form a space.

Furthermore, as another preferred embodiment of the present invention, the outer segmented mold inner stepped end surface 842 and the outer segmented mold inner circumferential surface ii 841 in the outer segmented mold b 8 may be of an up-down symmetrical structure, so that an upper cover a of the same size may be added on the lower portion as a lower base plate, and the upper base plate and the outer segmented mold inner circumferential surface i 843 form an annular cavity, thereby satisfying the molding of an annular tread, rather than a stepped ring surface.

As another preferred embodiment of the present invention, the bottom surface-support lower surface 16 of the support 1 and the inner segmented mold cavity surface 25 can be connected in a sliding manner by one or more combinations of the way of connecting the two through the guide rail slider mechanism or other sliding connection ways in the prior art, wherein one of the two surfaces is provided with a semicircular protrusion, the other surface is provided with a corresponding groove;

as another preferred embodiment of the invention, the radian formed by the arc plane at the outer side of the inner segmented mold 2 and the central point of the guide shaft 7 is 60 degrees;

as another preferred embodiment of the invention, the radian formed by the cambered surface formed by the convex facial lines on the two sides of the small inner segmented mold 2' and the central point of the guide shaft 7 is 60 degrees;

further, the inner side plane 231 contacts with an outer inclined surface 2-1 of the small inner segmented mold 2';

when the guide shaft 7 is positioned at the highest point, the 3 inner segmented molds 2 form a small circle, and when the guide shaft 7 is positioned at the lowest point, the 3 inner segmented molds 2 and the small inner segmented mold 2' form a large circle; the upper and lower limits of the two can ensure that the outer inclined surfaces 2-1 of the small inner segmented mold 2' of the small inner segmented mold are not separated from each other;

as shown in fig. 1-12, in a preferred embodiment, the process of the present invention comprises the following steps:

(1) an outer segmented mold b 8, an outer segmented mold a 4 and an outer guide shaft 5 of an outer supporting device are in a fixed state, and the outer segmented mold b 8 forms an outer segmented surface of the tire;

(2) controlling the guide shaft 7 to move upwards by a control system connected with the guide shaft 7, when the support 1 moves to the lowest end, namely the guide shaft 7 moves to the highest point, enabling the horizontal plane of the upper sealing cover A to be in surface contact fit with the step end face 22 of the inner segmented mold, injecting glue into a space between the outer circular arc end face in the middle of the inner segmented mold 2 and the outer segmented mold b 8 by using a glue injection machine, and stopping glue injection when a set die punching amount is reached;

(3) pre-vulcanizing the rubber material injected into the mold cavity by using a vulcanization heating device in a temperature control pressure system 10 connected with the annular tire tread segmented mold, opening the mold after reaching the pre-vulcanization time under certain temperature and pressure conditions, and taking out the pre-vulcanized tire tread;

(4) placing the precured tire tread on the polished tire tread, and performing a secondary vulcanization process to finally form a precured reinforced tire;

as another preferred embodiment of the invention, the process flow is as follows:

(1) controlling the guide shaft 7 to move upwards by a control system connected with the guide shaft 7, and winding the rubber strip on the outer surface of the inner segmented mold 2 through a winding device when the support 1 moves to the lowest end, namely the guide shaft 7 moves to the highest point, so as to achieve the purpose of punching the mold and stop injecting the rubber;

(2) fixing an outer segmented mold b 8, an outer segmented mold a 4 and an outer guide shaft 5 of an outer support device to form an outer prevulcanization circumference, and moving an upper sealing cover A to seal and compact the upper rubber material;

(4) placing the precured tire tread on the polished tire tread, and performing a secondary vulcanization process to finally form a vulcanized retreaded reinforced tire;

[ solution two ]

As shown in fig. 14-28, as another preferred embodiment of the annular tire tread segmented mold provided by the invention, the invention relates to a short fiber radial orientation reinforced annular segmented tire tread extrusion integrated device, which comprises a rubber injection retreading tire annular tire tread electromagnetic vulcanization segmented mold 100, a segmented mold upper cover traction device (hydraulic cylinder) 200, a segmented mold core driving device (hydraulic cylinder) 300, a rubber injection machine 400 and an injection machine transmission device 500;

the annular segmented tread extrusion integrated equipment is fixed on a rack, and is sequentially connected with a segmented mold upper cover traction device (hydraulic cylinder) 200, a rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100, a segmented mold core driving device (hydraulic cylinder) 300, a rubber injection machine 400 and an injection machine transmission device 500 from right to left;

as another preferred embodiment of the present invention, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100 is matched with the segmented mold core driving device 300 and the segmented mold upper cover traction device 200, so that the separation of the inner core part of the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100 and the radial movement of the sliding block part can be realized, and the injection molding vulcanization process can be realized at one time.

As another preferred embodiment of the invention, the right end of the segmented mold upper cover traction device (hydraulic cylinder) 200 is fixed on the right end plane of the frame, and the right side of the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100 is connected with the segmented mold upper cover traction device (hydraulic cylinder) 200;

further, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100 comprises a base 190 fixed on the frame, a segmented mold core driving device (hydraulic cylinder) 300 is fixed on an inner core driving push plate 191, a hydraulic cylinder rod of the segmented mold core driving device (hydraulic cylinder) 300 is fixed with the base 190 through a thread, a push plate transmission rod 192 arranged on the inner core driving push plate 191 penetrates through the base 190 and forms a screw pair with a transmission rod connecting thread 164 on the base inner core 160;

further, the push plate transmission rod 192 passes through three holes formed in the base 190, and the push plate transmission rod 192 is in clearance fit with the holes;

further, the rubber injection machine 400 is fixed on the frame, and an extruder commonly used in the prior art can be used as an injection device;

further, the rubber injection machine 400 is in transmission connection with a speed reducer of the injection machine transmission device 500;

as a preferred embodiment of the present invention, the rubber injection machine 400 is connected to an injection machine control system and an injection machine temperature control system; the injector transmission 500 includes a motor connected to a decelerator and fixed to the frame;

further, the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold 100 can produce an annular vulcanized tread;

as a preferred embodiment of the present invention, the rubber injection retreaded annular tread electromagnetic vulcanization segmented mold 100 comprises an arch-shaped seat and block equipment ligand 120, an upper cover small slide block 130, an upper cover large slide block 140, an upper cover inner core 150, a base inner core 160, a base small slide block 170, a base large slide block 180;

as a preferred embodiment of the invention, the top of the upper cover 110 of the segmented mold is connected with a traction device (hydraulic cylinder) 200 of the upper cover of the segmented mold, and the outer side wall is provided with an upper cover opening mold T-shaped block 112 which is matched with a T-shaped groove of a frame;

the top of the inner wall of the upper cover 110 of the segmented mold is provided with three upper cover mold opening delay rods 111 for controlling the shrinkage of the inner core slide block of the upper cover and a slide block upper cover guide rail (pressure distribution plate) 114 for controlling the radial movement of the inner core slide block, and the small upper cover slide block 130 and the large upper cover slide block 140 are respectively provided with a small upper cover slide block transverse T-shaped block 131 and a large upper cover slide block transverse T-shaped block 141 which are matched with the small upper cover slide block and the large upper cover slide block;

the circumference of the inner side wall of the upper cover 110 of the segmented mold is provided with 10 arched seat guide rails (matched with baffles) 113, and ten arched seats are matched with the pattern block equipment ligand 120.

Further, an included angle between the arch-shaped seat guide rail (provided with the baffle) 113 and the upper cover traction device (hydraulic cylinder) 200 of the segmented mold in the axial direction is 15 degrees;

further, an upper cover die opening delay rod 111 and the segmented die upper cover 110 are connected into a whole through threads and are connected with a segmented die upper cover traction device (hydraulic cylinder) 200; the other end is matched and fixedly connected with a hole formed in the upper part of the upper cover inner core 150; the fixed connection mode can be realized by the way that the lower end of the upper cover die opening delay rod 111 is provided with threads, passes through a hole formed in the upper part of the upper cover inner core 150, and is fixed at the lower end by one or more combined modes in the prior art, such as the matching of bolts with the threads, and the like, the diameters of which are larger than the holes;

as a preferred embodiment of the present invention, the number of the holes formed at the upper part of the upper cover core 150 is three;

as a preferred embodiment of the invention, the arch-shaped seat and the pattern block equipment body 120 are connected through screws, the T-shaped block of the arch-shaped seat is wound with a heating electromagnetic coil, the pattern block can be replaced according to different retreaded treads, vent holes are processed on the pattern block, and gas in a mold cavity is discharged out of a mold through the vent holes of the pattern block and a gap between the arch-shaped seat and the segmented mold upper cover 110 during tread injection molding.

The upper part and the back part of the upper cover small sliding block 130 are respectively provided with an upper cover small sliding block transverse T-shaped block 131 and an upper cover small sliding block longitudinal T-shaped block 132 which are respectively matched with a sliding block upper cover guide rail (pressure distribution plate) 114 of the upper cover 110 of the segmented mold and an upper cover small sliding block guide rail (pressure distribution plate) 153 of the upper cover inner core 150 to control the radial contraction of the upper cover small sliding block 130;

the small upper cover slider 130 and the large base slider 180 are matched together to form a flow channel 161, wherein the angle of the longitudinal T-shaped block 132 of the small upper cover slider on the back of the small upper cover slider 130 is larger than the angle of the longitudinal T-shaped block 142 of the large upper cover slider, so that the radial movement amount of the small upper cover slider 130 is larger than that of the large upper cover slider 140.

Further, the angle of the upper cover small sliding block longitudinal T-shaped block 132 is 17 degrees, and the angle of the upper cover large sliding block longitudinal T-shaped block 142 is 12 degrees;

as a preferred embodiment of the present invention, the upper cover large slide block 140 has an upper cover large slide block transverse T-shaped block 141 and an upper cover large slide block longitudinal T-shaped block 142 on the upper part and the back part, which are respectively matched with the slide block upper cover guide rail (pressure distribution plate) 114 of the segmented mold upper cover 110 and the upper cover large slide block guide rail (pressure distribution plate) 152 of the upper cover inner core 150; the radial contraction of the upper cover large sliding block 140 is controlled, and the upper cover large sliding block 140 and the base small sliding block 170 are in groove fit to form a flow channel 161.

As a preferred embodiment of the invention, the upper cover inner core 150 is respectively matched with three upper cover large sliding blocks 140 and three upper cover small sliding blocks 130, the different angles of the inclined planes of the side walls play a role in controlling the radial shrinkage of the sliding blocks, the shrinkage of the upper cover small sliding blocks 130 is greater than that of the upper cover large sliding blocks 140, the interference between the sliding blocks is avoided, the upper cover inner core 150 is matched with the upper cover mold opening delay rod 111, the upper cover inner core 150 is ensured to be separated from the base inner core 160 after the pattern blocks are completely opened, the scratch of tread patterns is avoided, the quality of the tread patterns is ensured, and meanwhile, the segmented mold upper cover 110 drives the three radial upper cover small sliding blocks 130 and the three upper cover large sliding blocks 140 to shrink, so that the inner wall of the annular tread is demolded.

As a preferred embodiment of the invention, the base inner core 160 is respectively matched with three base small sliding blocks 170 and three base large sliding blocks 180, the different angles of the side wall inclined planes play a role in controlling the radial shrinkage of the sliding blocks, the shrinkage of the base small sliding blocks 170 is greater than that of the base large sliding blocks 180, and the interference between the sliding blocks is avoided;

the bottom of the base core 160 is fitted with a rubber injection nozzle through a gate, the rubber passes through a runner 161 that runs through the base core 160, six radial runners 161 are distributed on the interface of the upper cover inner core 150 and the base inner core 160, and then enter the die cavity for molding through the runners 161 grooves on the base large sliding block 180 and the base small sliding block 170, after the segmented mold upper cover 110 drives the upper cover inner core 150 to open the mold for a safe distance, the segmented mold core driving device (hydraulic cylinder) 300 reversely pushes the base 190, presses the inner core driving push plate 191 (hydraulic cylinder 300 fixing plate), the inner core driving push plate 191 (hydraulic cylinder 300 fixing plate) axially moves the base inner core 160 through the push plate transmission rod 192 to drive the three base small slide blocks 170 and the three base large slide blocks 180 to radially contract to demold the inner wall of the annular tire tread, and the main runner is snapped off from the material connection of the rubber injection machine 400, so that the entire annular vulcanized tread is demolded together with the runner.

As a preferred embodiment of the invention, the base small slide block 170 is provided with a base small slide block transverse T-shaped block 171 at the bottom and a base small slide block longitudinal T-shaped block 172 at the back, which are respectively matched with a slide block base guide rail (pressure distribution plate) 193 and a base small slide block guide rail (pressure distribution plate) 163 of a base inner core to control the radial shrinkage of the slide block, the upper cover large slide block 140 is matched with a base small slide block 170 groove to form a flow channel 161, wherein the angle of the base small slide block longitudinal T-shaped block 172 at the back of the base small slide block 170 is larger than that of the base large slide block longitudinal T-shaped block 182, so that the radial movement amount of the base small slide block 170 is larger than that.

The large base sliding block 180 is provided with a large base sliding block transverse T-shaped block 181 at the bottom, a large base sliding block longitudinal T-shaped block 182 at the back, which is respectively matched with a sliding block base guide rail (pressure distribution plate) 193 and a large base sliding block guide rail (pressure distribution plate) 162 of a base inner core to control the radial shrinkage of the sliding block, the small upper cover sliding block 130 is matched with the large base sliding block 180 in a groove manner to form a flow channel 161, wherein the angle of the large base sliding block longitudinal T-shaped block 182 at the back of the large base sliding block 180 is smaller than the angle of the small base sliding block longitudinal T-shaped block 172, so that the radial movement amount of the large base sliding.

Further, the angle of the longitudinal T-shaped block 172 of the small base sliding block is 17 degrees, and the angle of the longitudinal T-shaped block 182 of the large base sliding block is 12 degrees;

as a preferred embodiment of the invention, the base 190 has six sliding block base guide rails (pressure distribution plates) 193 on the top to match with the small sliding block transverse T-shaped block 171 and the large sliding block transverse T-shaped block 181 of the base to control the small sliding block 170 and the large sliding block 180 of the base to radially contract, a hole is arranged in the center of the base 190 to avoid a gap with a nozzle of the rubber injection machine 400, three holes are arranged to connect a push plate transmission rod 192 with the inner core 160 of the base, the bottom of the base 190 is connected with a push rod of a segmented mold core driving device (hydraulic cylinder) 300, and the base 190 is fixed on a frame.

As a preferred embodiment of the present invention, the inner core driving push plate 191 (a fixed plate of the hydraulic cylinder 300) is connected to the inner core 160 of the base through a push plate transmission rod 192, the cylinder body of the segmented mold core driving device (the hydraulic cylinder) 300 is fixed to the inner core driving push plate 191 (a fixed plate of the hydraulic cylinder 300), and the segmented mold core driving device (the hydraulic cylinder) 300 reversely pushes the inner core driving push plate 191 (a fixed plate of the hydraulic cylinder 300) to drive the inner core 160 of the base to move during operation.

Further, the segmented mold upper cover 110 and the base 190 can rotate; at this time, the segmented mold upper cover 110 is driven by a gear in the prior art and is driven by a motor reduction box, so that the segmented mold upper cover 110 is driven.

As a preferred embodiment of the present invention, the base 190 and the segmented mold upper cover 110 are not fixed on the frame, the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold 100 can rotate around the horizontal axis for 360 ° as a whole, and both ends are supported on the frame by the prior art structure such as bearings.

Further, the segmented mold upper cover 110 and the base 190 are connected through a snap structure, so that the tightness of the two is ensured when the two rotate.

As a preferred embodiment of the present invention, the gate portion has a gate sleeve fixedly connected to the base 190, and the gate sleeve is also rotatable;

1) when the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold 100 is in a mold closing non-working state, the rubber injection machine 400 injects rubber in a viscous state into the runner 161 through the base 190 and the clearance hole of the inner core driving push plate 191 (a hydraulic cylinder 300 fixing plate); after rubber is filled into the whole inner cavity of the mold, the rubber injection machine maintains pressure, an electromagnetic heating control system of the mold starts to work, the arch-shaped seat and the pattern block are provided with electromagnetic coils wound on a ligand 120 to heat the arch-shaped seat, and the arch-shaped seat heats the pattern block through heat conduction so as to heat and vulcanize the rubber;

2) after the vulcanization process is finished, firstly, the upper cover pulls the upper cover pulling device (hydraulic cylinder) 200 of the segmented mold to work, and the upper cover 110 of the segmented mold is opened; the upper cover 110 of the segmented mold moves axially on the frame due to the T-shaped block 112 of the upper cover opening mold, the arch base and pattern block equipment ligand 120 starts to open slowly under the action of the guide rail (matched with the baffle) 113 of the arch base, so that the pattern block is separated from the tread pattern; the upper cover large slide block 140 and the upper cover small slide block 130 are axially contracted under the action of an upper cover small slide block guide rail (distributing plate) 153 of an upper cover large slide block guide rail (distributing plate) 152 due to the axial movement of the traction force of the slide block upper cover guide rail (distributing plate) 114, wherein the contraction speed of the small slide block is higher than that of the large slide block, so that the inner wall of the tread is separated from the slide block; when the pattern block, the upper cover slide block and the tread are completely demoulded, the upper cover inner core 150 is separated from the base inner core 160 under the driving of the upper cover mold opening delay rod 111; completing the die opening of the upper cover part;

3) after the upper cover is opened by a safe distance, the segmented mold core driving device (hydraulic cylinder) 300 is connected with the base 190, the cylinder body is connected with the inner core driving push plate 191 (a hydraulic cylinder 300 fixing plate), the base 190 is fixed with the rack, and the segmented mold core driving device (hydraulic cylinder) 300 reversely pushes the inner core driving push plate 191 (the hydraulic cylinder 300 fixing plate) when working, so that the base inner core 160 axially moves through the push plate transmission rod 192, the base large slide block guide rail (pressure distribution plate) 162 on the base inner core 160, and the base small slide block guide rail (pressure distribution plate) 163 and the slide block base guide rail (pressure distribution plate) 193 enable the base large slide block 180 of the base small slide block 170 to radially contract, wherein the contraction speed of the base small slide block 170 is faster than that of the base;

4) meanwhile, the axial movement of the base inner core 160 breaks the rubber material handle at the joint of the flow channel 161 and the rubber injection machine 400, and the annular tire tread is demolded;

5) after the annular tire tread and the flow channel are taken out by using a manual or mechanical arm, the segmented mold core driving device (hydraulic cylinder) 300 returns to enable the base inner core 160, the base small sliding block 170 and the base large sliding block 180 to return; then, an upper cover traction device (a hydraulic cylinder) 200 of the segmented mold, an arch-shaped seat and pattern block equipment ligand 120, an upper cover inner core 150, an upper cover small sliding block 130 and an upper cover large sliding block 140 automatically return through the limit of a base 190 and a base inner core 160; the whole process is completed.

In a preferred embodiment of the present invention, in step 1), the rubber is short fiber reinforced rubber, preferably polyester fiber, and the short fiber reinforced rubber is extruded and vulcanized by the apparatus to obtain short fiber radial orientation reinforced rubber product.

The invention relates to short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment, which is more suitable for preparing short fiber radial orientation enhanced rubber products, in the prior art, the rubber radial orientation can enable short fibers to enter a mold cavity along the flow direction of rubber materials, namely a flow channel 161, to complete molding and pre-vulcanization through 6 dispersing flow channels 161, so that the preparation of the short fiber radial orientation enhanced rubber pre-vulcanized tread is realized, the method adopts the integrated molding of extrusion, molding and vulcanization, and the efficiency is higher.

Finally, it is to be noted that the small upper cover slider 130, the large upper cover slider 140, the small base slider 170, and the large base slider 180 are substantially the same as the small-to-medium inner segmented mold 2 ″ and the inner segmented mold 2 in the first scheme, but the principle is greatly different, the space utilization rate of the scheme is higher, the realized functions are more, and the practicability is higher.

The angle of the longitudinal T-shaped block 172 of the small base sliding block is 17 degrees, the angle of the longitudinal T-shaped block 182 of the large base sliding block is 12 degrees, and the angle refers to the angle between the inclined plane of the T-shaped block and the vertical line.

The included angle between the arch-shaped seat guide rail (matched with the baffle) 113 and the upper cover traction device (hydraulic cylinder) 200 of the segmented mold in the axial direction is 15 degrees; the axial direction refers to the horizontal direction.

The above embodiments are merely illustrative and not restrictive of the technical solutions of the present invention. Any modification or partial replacement without departing from the spirit of the present invention should be covered in the scope of the claims of the present invention.

Claims

1. The utility model provides an annular tread segmented mold which characterized in that: the annular tire tread segmented mold sequentially comprises a guide device, an inner movable device and an outer support device from inside to outside, the lower part of the outer support device is connected with a bottom plate (6), the guide device is connected with the inner movable device, the guide device can move up and down along the vertical direction, and the inner movable device can move along the radius direction of a horizontal circular surface under the action of the guide device;

when the whole guide device moves upwards to the highest position along the vertical direction, the inner moving device can correspondingly move close to the center position of the annular tread segmented mold along the horizontal plane, when the inner moving device moves downwards to the lowest position along the vertical direction on the whole guide device, the inner moving device can move outwards, and the outer support device can clamp the inner moving device.

2. The annular tread segmented mold of claim 1, wherein: the guide device comprises a guide shaft (7) and a support (1) movably connected with the guide shaft (7) from inside to outside in sequence;

the periphery of the guide shaft (7) consists of six irregular quadrangular prisms, the guide shaft is fixed on the second stepped end face (75), the surface of the guide shaft (7) further comprises upper bottom faces of the six irregular prisms, lower bottom faces of the guide shaft (7), oblique cylindrical faces (71), side dividing faces a (721) and b (722) of each irregular prism and an upper surface (73) of the inner stepped shaft of the guide shaft;

twelve inclined cylindrical surfaces (71), every two inclined cylindrical surfaces (71) form a groove inwards and are arranged on two sides of the irregular prism, and the inclined cylindrical surfaces (71) form an angle of 45 degrees with the central axis direction of the guide shaft (7) respectively;

the outer side surface (74) of the inner stepped shaft of the guide shaft is in sliding connection with the upper support surface (11) of the support (1); the lower surface (15) of the supporting protrusion part is connected with the outer side surface (711) of the inclined cylindrical surface in a sliding way;

the guide shaft (7) and the support (1) form a guide rod sliding block mechanism;

the six supports (1) are connected with the guide shaft (7) in a sliding manner inwards and are respectively connected with the six inner segmented molds (2) outwards in a sliding manner;

when the annular tire tread segmented mold is in a die stamping state, the supporting main visual surface (14) is in contact fit with a second stepped end surface (75) of the guide shaft in the guide shaft (7);

the side surface (12) of the support protruding part of the support (1) is in sliding connection with the middle surface (712) of the inclined cylindrical surface;

the inner movable device comprises an inner segmented mold (2), and the inner segmented mold (2) is inwards movably connected with the support (1); when the guide device moves downwards to the lowest position, the arc end surface of the periphery of the inner segmented mold (2) and the outer support; an outer segmented mold b (8) in the device forms surface contact, and the inner segmented mold (2) is clamped with the outer segmented mold b (8);

when the guide device moves downwards to the lowest position, the inner segmented mold (2) can be clamped with an inner segmented mold inner stepped end face (842) and an inner segmented mold inner circumferential face II (841) in the outer segmented mold b (8) through an inner segmented mold stepped end face (22) and an inner segmented mold clamping face (21);

when the guide device moves downwards to the lowest position, the inner circumferential surface I (843) of the outer segmented mold can be contacted with the outer convex surface of the inner segmented mold (2);

the inner circumferential surface I (843) of the outer moving net mold is provided with tire patterns;

annular tread segmented mold includes guiding axle (7), support (1), interior segmented mold (2), outer segmented mold a (4), outer guiding axle (5) from inside to outside in proper order, outer guiding axle (5) are six, arranges the horizontal plane upper portion of the six extensions of bottom plate (6) respectively in, outer guiding axle (5) and outer segmented mold a (4) swing joint, and outer segmented mold a (4) and outer segmented mold b (8) lateral surface are along outer curved surface circle direction swing joint, along vertical direction fixed connection, interior segmented mold (2) are six, and interior segmented mold (2) periphery circular arc terminal surface and outer segmented mold b (8) medial surface are along inner curved surface circle direction swing joint, along vertical direction fixed connection, and bolt (3) are six, respectively with six outer segmented mold b (8) fixed connection.

3. The utility model provides an integrative equipment is extruded to radial orientation reinforcing annular segmented tread of short-staple which characterized in that: the equipment comprises a rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold (100), a segmented mold upper cover traction device (200), a segmented mold core driving device (300), a rubber injection machine (400) and an injection machine transmission device (500);

the annular segmented tread extrusion integrated device is fixed on a rack and is sequentially connected with a segmented mold upper cover traction device (200), a rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold (100), a segmented mold core driving device (300), a rubber injection machine (400) and an injection machine transmission device (500) from right to left;

the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold (100) is matched with a segmented mold core driving device (300) and a segmented mold upper cover traction device (200), so that the separation of the inner core part of the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold (100) and the radial movement of the sliding block part can be realized, and the injection molding vulcanization process can be realized at one time.

4. The short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment as claimed in claim 3, wherein:

the right end of a segmented mold upper cover traction device (200) is fixed on the right end plane of the frame, and the right side of the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold (100) is connected with the segmented mold upper cover traction device (200);

the rubber injection retreaded tire annular tread electromagnetic vulcanization segmented mold (100) comprises a base (190) fixed on a rack, a segmented mold core driving device (300) is fixed on an inner core driving push plate (191), a hydraulic cylinder rod of the segmented mold core driving device (300) is fixed with the base (190) through threads, a push plate transmission rod (192) arranged on the inner core driving push plate (191) penetrates through the base (190) and forms a screw pair with a transmission rod connecting thread (164) on an inner core (160) of the base;

the push plate transmission rod (192) passes through three holes formed in the base (190), and the push plate transmission rod (192) is in clearance fit with the holes;

the rubber injection machine (400) is fixed on the frame, and can adopt an extruder commonly used in the prior art as injection equipment;

the glue injection machine (400) is in transmission connection with a speed reducer of the injection machine transmission device (500);

the rubber injection machine (400) is connected with an injection machine control system and an injection machine temperature control system; the transmission device (500) of the injection machine comprises a motor which is connected with a speed reducer and fixed on the frame;

the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold (100) can produce annular vulcanized tread.

5. The short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment as claimed in claim 4, wherein:

the rubber injection retreaded annular tread electromagnetic vulcanization segmented mold (100) comprises an arch-shaped seat and pattern block equipment ligand (120), an upper cover small sliding block (130), an upper cover large sliding block (140), an upper cover inner core (150), a base inner core (160), a base small sliding block (170) and a base large sliding block (180);

the top of the upper cover (110) of the segmented mold is connected with a traction device (200) of the upper cover of the segmented mold, and the outer side wall of the upper cover mold opening T-shaped block (112) is provided with three parts which are matched with the T-shaped groove of the frame;

the top of the inner wall of the upper cover (110) of the segmented mold is provided with three upper cover mold opening delay rods (111) for controlling the shrinkage of the inner core slide block of the upper cover and a slide block upper cover guide rail (114) for controlling the radial movement of the inner core slide block, and the small upper cover slide block (130) and the large upper cover slide block (140) are respectively provided with an upper cover small slide block transverse T-shaped block (131) and an upper cover large slide block transverse T-shaped block (141) which are matched with the upper cover small slide block and the upper cover large slide block;

the circumference of the inner side wall of the upper cover (110) of the segmented mold is provided with 10 arched seat guide rails (113), and ten arched seats are matched with the pattern block equipment ligand (120);

the included angle between the arch-shaped seat guide rail (113) and the upper cover traction device (200) of the segmented mold in the axial direction is 15 degrees.

6. The short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment as claimed in claim 5, wherein:

the upper cover die opening delay rod (111) and the segmented die upper cover (110) are connected into a whole through threads and are connected with a segmented die upper cover traction device (200); the other end is matched and fixedly connected with a hole formed in the upper part of the upper cover inner core (150); the fixed connection mode can be realized by that the lower end of the upper cover die opening delay rod (111) is provided with threads, penetrates through a hole formed in the upper part of the upper cover inner core (150), and is fixed by matching bolts with the threads, the diameters of which are larger than those of the holes, with one or more combined modes in the prior art at the lower end;

three holes are formed in the upper part of the upper cover inner core (150);

the arch-shaped seat is connected with the pattern block equipment ligand (120) through a screw, the T-shaped block of the arch-shaped seat is wound with a heating electromagnetic coil, the pattern block can be replaced according to different retreaded treads, vent holes are processed on the pattern block, and gas in a mold cavity is discharged outside the mold through the vent holes of the pattern block and a gap between the arch-shaped seat and the segmented mold upper cover (110) during tread injection molding.

7. The short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment as claimed in claim 5, wherein:

the upper part and the back of the upper cover small sliding block (130) are respectively provided with an upper cover small sliding block transverse T-shaped block (131) and an upper cover small sliding block longitudinal T-shaped block (132) which are respectively matched with a sliding block upper cover guide rail (114) of the upper cover (110) of the segmented mold and an upper cover small sliding block guide rail (153) of the upper cover inner core (150), and the radial contraction of the upper cover small sliding block (130) is controlled;

the upper cover small sliding block (130) and the base large sliding block (180) are matched together to form a flow channel (161), wherein the angle of the upper cover small sliding block longitudinal T-shaped block (132) on the back of the upper cover small sliding block (130) is larger than the angle of the upper cover large sliding block longitudinal T-shaped block (142), so that the radial movement amount of the upper cover small sliding block (130) is larger than that of the upper cover large sliding block (140);

the angle of the upper cover small sliding block longitudinal T-shaped block (132) is 17 degrees, and the angle of the upper cover large sliding block longitudinal T-shaped block (142) is 12 degrees;

the upper part and the back part of the upper cover large sliding block (140) are respectively provided with an upper cover large sliding block transverse T-shaped block (141) and an upper cover large sliding block longitudinal T-shaped block (142) which are respectively matched with a sliding block upper cover guide rail (114) of the upper cover (110) of the segmented mold and an upper cover large sliding block guide rail (152) of the upper cover inner core (150); controlling the radial shrinkage of the upper cover large sliding block (140), and matching the upper cover large sliding block (140) with the base small sliding block (170) to form a flow channel (161);

the upper cover inner core (150) is respectively matched with the three upper cover large sliding blocks (140) and the three upper cover small sliding blocks (130), the different angles of the inclined planes of the side walls play a role in controlling the radial shrinkage of the sliding blocks, the shrinkage of the upper cover small sliding blocks (130) is larger than that of the upper cover large sliding blocks (140) and is matched with the upper cover mold opening delay rod (111), the upper cover inner core (150) is separated from the base inner core (160) after the pattern blocks are completely opened, and the segmented mold upper cover (110) drives the three radial upper cover small sliding blocks (130) and the three upper cover large sliding blocks (140) to shrink, so that the inner wall of the annular tread is demolded.

8. The short fiber radial orientation enhanced annular segmented tread extrusion integrated equipment as claimed in claim 5, wherein: the base inner core (160) is respectively matched with the three small base sliding blocks (170) and the three large base sliding blocks (180), and the shrinkage of the small base sliding blocks (170) is greater than that of the large base sliding blocks (180), so that the interference between the sliding blocks is avoided;

the bottom of the base inner core (160) is matched with a rubber injection nozzle through a pouring gate, rubber passes through a runner (161) penetrating through the base inner core (160), six radial runners (161) are distributed on the interface of the upper cover inner core (150) and the base inner core (160), and then enters a mold cavity for molding through a runner (161) groove on the base large slide block (180) and a runner (161) groove on the base small slide block (170), when the segmented mold upper cover (110) drives the upper cover inner core (150) to open the mold for a safe distance, the segmented mold core driving device (300) reversely pushes the base (190), presses the inner core driving push plate (191), the inner core driving push plate (191) axially moves the base inner core (160) through the push plate transmission rod (192) to drive three base small slide blocks (170) and three base large slide blocks (180) to radially contract to demold the inner wall of the annular tire tread, and breaks the main runner to be connected with the material of the rubber, demolding the whole annular vulcanized tread together with the flow channel;

the small base sliding block (170) is provided with a small base sliding block transverse T-shaped block (171) at the bottom, a small base sliding block longitudinal T-shaped block (172) at the back and is respectively matched with a sliding block base guide rail (193) and a small base sliding block guide rail (163) of a base inner core to control the radial contraction of the sliding block, the large upper cover sliding block (140) is matched with the small base sliding block (170) in a groove mode to form a flow channel (161), wherein the angle of the small base sliding block longitudinal T-shaped block (172) at the back of the small base sliding block (170) is larger than that of the large base sliding block longitudinal T-shaped block (182), so that the radial movement amount of the small base sliding block (170) is;

the large base sliding block (180) is provided with a large base sliding block transverse T-shaped block (181) at the bottom, a large base sliding block longitudinal T-shaped block (182) at the back and matched with a sliding block base guide rail (193) and a large base sliding block guide rail (162) of a base inner core respectively to control the radial contraction of the sliding block, an upper cover small sliding block (130) is matched with a base large sliding block (180) in a groove mode to form a flow channel (161), wherein the angle of the large base sliding block longitudinal T-shaped block (182) at the back of the large base sliding block (180) is smaller than that of the small base sliding block longitudinal T-shaped block (172), so that the radial movement amount of the large base sliding block (180) is smaller;

the angle of the longitudinal T-shaped block (172) of the small base sliding block is 17 degrees, and the angle of the longitudinal T-shaped block (182) of the large base sliding block is 12 degrees.

9. The integrated equipment for extruding the short fiber radial orientation reinforced annular segmented tread as claimed in any one of claims 5 to 8, wherein:

the top of the base (190) is provided with six sliding block base guide rails (193) which are matched with a small sliding block transverse T-shaped block (171) of the base and a large sliding block transverse T-shaped block (181) of the base, the small sliding block (170) of the base and the large sliding block (180) of the base are controlled to radially contract, a hole is formed in the center of the base (190) and is in clearance with a nozzle of a rubber injection machine (400), three holes are formed in the base so that a push plate transmission rod (192) is connected with an inner core (160) of the base, the bottom of the base (190) is connected with a push rod of a segmented mold core driving device (300), and the base (;

the inner core driving push plate (191) is connected with the base inner core (160) through a push plate transmission rod (192), the cylinder body of the segmented mold core driving device (300) is fixed on the inner core driving push plate (191), and the segmented mold core driving device (300) reversely pushes the inner core driving push plate (191) to drive the base inner core (160) to move in work.

10. A method for manufacturing an annular segmented tread with enhanced radial orientation of short fibers is characterized by comprising the following steps:

1) when the rubber injection retreading tire annular tread electromagnetic vulcanization segmented mold (100) is in a mold closing non-working state, the rubber injection machine (400) injects polyester short fiber reinforced rubber in a viscous state into a flow channel (161) through a base (190) and an inner core driving push plate (191) clearance hole; after rubber is filled into a complete inner cavity of the mold, the rubber injection machine maintains pressure, an electromagnetic heating control system of the mold starts to work, the arch-shaped seat and the pattern block are provided with electromagnetic coils wound on a ligand (120) to heat the arch-shaped seat, the arch-shaped seat heats the pattern block through heat conduction, and then the rubber is heated and vulcanized;

2) after the vulcanization process is finished, firstly, the upper cover pulls the upper cover pulling device (200) of the segmented mold to work, and the upper cover (110) of the segmented mold is opened; the upper cover (110) of the segmented mold moves axially on the frame due to the fact that the T-shaped block (112) opened by the upper cover and the mold, and the arch-shaped seat and the pattern block equipment ligand (120) start to be opened slowly under the action of the arch-shaped seat guide rail (113), so that the pattern block is separated from the tread pattern; the upper cover large sliding block (140) and the upper cover small sliding block (130) axially move due to the traction force of the sliding block upper cover guide rail (114), and axially contract under the action of the upper cover small sliding block guide rail (153) of the upper cover large sliding block guide rail (152), wherein the contraction speed of the small sliding block is higher than that of the large sliding block, so that the inner wall of the tread is separated from the sliding block; when the pattern block, the upper cover slide block and the tread are completely demoulded, the upper cover inner core (150) is separated from the base inner core (160) under the driving of the upper cover die opening delay rod (111); completing the die opening of the upper cover part;

3) after the upper cover is opened by a safe distance, the segmented mold core driving device (300) is connected with the base (190), the cylinder body is connected with the inner core driving push plate (191), the base (190) is fixed with the rack, and the inner core driving push plate (191) is reversely pushed when the segmented mold core driving device (300) works, so that the inner core (160) of the base axially moves through the push plate driving rod (192), the large base sliding block guide rail (162) on the inner core (160) of the base, the small base sliding block guide rail (163) and the sliding block base guide rail (193) enable the small base sliding block (170) to radially contract the large base sliding block (180), wherein the contraction speed of the small base sliding block (170) is faster than that of the large base sliding block (180), and the inner wall;

4) meanwhile, the axial movement of the base inner core (160) breaks a rubber material handle at the joint of the flow channel (161) and the rubber injection machine (400), and the annular tire tread is demolded;

5) after the annular tire tread and the flow channel are taken out by using a manual or mechanical arm, the segmented mold core driving device (300) returns to enable the base inner core (160), the base small sliding block (170) and the base large sliding block (180) to return; then, an upper cover traction device (200) of the segmented mold is used for enabling the arch-shaped seat and the pattern block to be provided with a ligand (120), an upper cover inner core (150), an upper cover small sliding block (130) and an upper cover large sliding block (140) to automatically return through the limiting of a base (190) and a base inner core (160); the whole process is completed.