CN214026647U - Tube blank vulcanizing mould and equipment for fabric reinforced rubber tube - Google Patents

Abstract

The utility model discloses a pipe vulcanization mould utensil of fabric enhancement mode rubber tube, include: the die core mainly comprises a die core frame, wherein two sides of the die core frame are respectively connected with a plurality of sleeve joints which are arranged at intervals, and the end parts of the sleeve joints are respectively connected with an inner core rod for penetrating through a tube blank; the lower die is used for supporting the die core, and a lower die cavity is formed on the upper end surface of the lower die; the upper die is used for pressing the die core, and an upper die cavity is formed on the lower end surface of the upper die; the upper die cavity and the lower die cavity can be matched with each other to form a die core die cavity, and the die core can be compressed between the lower die and the upper die and is sealed in the die core die cavity. The utility model discloses still disclose the pipe vulcanization equipment of fabric enhancement mode rubber tube simultaneously. The utility model discloses a mold core makes to vulcanize the back pipe and has very high size precision, has guaranteed the uniformity after the pipe vulcanizes, and the finished product qualification rate also improves to some extent, has improved fabric enhancement mode rubber tube machining efficiency.

Description

Tube blank vulcanizing mould and equipment for fabric reinforced rubber tube

Technical Field

The utility model relates to a pipe base vulcanization mould utensil belongs to rubber tube processing technology field. In particular, the utility model relates to a tube blank vulcanization mould of a fabric reinforced rubber tube; and simultaneously, the utility model discloses still based on the pipe vulcanization mould utensil of this fabric enhancement mode rubber tube, provide a pipe vulcanization equipment of fabric enhancement mode rubber tube.

Background

The rubber tube is a rubber product commonly used in daily life and industry, is mainly used for wrapping an internal part or conveying a medium, and generally needs to be vulcanized through a vulcanization process so as to obtain higher elasticity, heat resistance, tensile strength, insolubility in an organic solvent and the like.

Due to the influence of main materials and application environment, part of rubber pipes are often under the action of high temperature and pressure, such as fluororubber and silicon rubber, and are commonly used for connecting hoses of engine oil coolers, turbochargers, differential pressure sensors and the like, the working temperature is generally 180-220 ℃, the rubber pipes are under the working condition of 200 ℃ for a long time, the working pressure is 0.3MPa, and the burst pressure is more than 1MPa, so that fabric (aramid fiber wires) reinforcing layers are required to be processed for increasing the high temperature resistance and the pressure resistance before vulcanization of the rubber pipe products, and the fabric reinforced rubber pipes are formed.

The fabric reinforced rubber tube belongs to a special hose, and the following problems are frequently caused in vulcanization: 1. the diameter expansion of the hose is large, the conventional core sleeving equipment can not be realized basically, and the expansion can be completed by special equipment, but the conventional equipment has high basic cost and high price; 2. for a part of soft bent pipes with bending structures, the wall thickness of the inner R wall and the wall thickness of the outer R wall are seriously uneven generally because the center R of a product is small and the difference between the inner arc length and the outer arc length is large; 3. the common vulcanization process is difficult to meet for products with high requirements on appearance and consistency, such as wall thickness, tolerance, radian and the like after the diameter of the product is expanded. 4. Most of the existing vulcanization processes can only be carried out by adopting the pressure within 0.55MPa and the temperature within 160 ℃, the processing time is basically more than 2h, and the vulcanization time is long. These problems all result in a high rate of defective finished products for the fabric reinforced rubber hose, a poor product consistency, high cost and low efficiency.

Disclosure of Invention

Based on above technical problem, the utility model provides a tube vulcanization mould utensil of fabric enhancement mode rubber tube to the tube that has solved current rubber tube is long, with high costs and the relatively poor technical problem of product uniformity when vulcanizing.

For solving the above technical problem, the utility model discloses a specific technical scheme as follows:

a tube blank vulcanization mold of a fabric reinforced rubber tube comprises:

the die core mainly comprises a die core frame, wherein two sides of the die core frame are respectively connected with a plurality of sleeve joints which are arranged at intervals, and the end parts of the sleeve joints are respectively connected with an inner core rod for penetrating through a tube blank;

the lower die is used for supporting the die core, and a lower die cavity is formed on the upper end surface of the lower die;

the upper die is used for pressing the die core, and an upper die cavity is formed on the lower end surface of the upper die;

the upper die cavity and the lower die cavity can be matched with each other to form a die core die cavity, and the die core can be compressed between the lower die and the upper die and is sealed in the die core die cavity.

Preferably, the socket joints on the two sides are symmetrical and arranged in a staggered mode.

Preferably, the two ends of the mold core frame are connected with fixed blocks extending out of the mold core cavity, mold core positioning holes are also formed in the two ends of the mold core frame and located between the fixed blocks, and mold core positioning columns inserted into the mold core positioning holes are further arranged in the lower mold cavity.

Preferably, the two ends of the mold core frame are provided with through holes.

Preferably, the inner core rod is of a snake-shaped bending structure and mainly comprises a straight pipe part connected with the sleeve joint, a bent part integrally formed with the straight pipe part and a lower bent part integrally formed with the bent part.

Preferably, the up end bilateral symmetry of lower mould is provided with the cavity of indent, the lower terminal surface bilateral symmetry of going up the mould be provided with cavity complex lug, cavity bottom surface and lug surface are the inclined plane, just die cavity or last die cavity all stretch into along the inclined plane part cavity or lug.

Preferably, vertical through holes penetrating through the lower die are symmetrically formed in the concave cavity.

Preferably, the upper end face of the lower die is provided with a die positioning hole, and the lower end face of the upper die is provided with a die positioning column inserted into the positioning hole.

Preferably, the die positioning holes are uniformly provided with a plurality of blind holes and are located at the edge of the upper end face of the lower die.

Preferably, the lower end of the lower die is movably connected with a bottom plate, and a plurality of positioning openings are formed in two opposite sides of the bottom plate.

Preferably, the two sides of the upper end of the lower die are symmetrically provided with adjusting notches.

Based on above pipe vulcanization mould utensil, the utility model discloses beneficial effect who has as follows: the utility model discloses an internal diameter size of mold core control pipe, through last mould and lower mould control pipe base external diameter, thereby make the rubber tube that the pipe made after the vulcanization have high size precision, the internal diameter of rubber tube is unanimous basically, the uniformity after the pipe vulcanization has been guaranteed, fabric enhancement mode rubber tube yield also improves to some extent, and through the mold core design, it can reach 20MPa to go up the vulcanization pressure between mould and the lower mould, the temperature can reach 180 ℃ -190 ℃, thereby can shorten the vulcanization time to 6min ~ 10min, and then reduced fabric enhancement mode rubber tube preparation man-hour, fabric enhancement mode rubber tube machining efficiency has been improved.

Meanwhile, based on the tube blank vulcanizing mould of the fabric reinforced rubber tube, the utility model also discloses a tube blank vulcanizing device of the fabric reinforced rubber tube, which comprises a tube blank vulcanizing device main body, wherein the tube blank vulcanizing device main body is provided with a clamp platform and a pressurizing and heating lifting platform, and also comprises the tube blank vulcanizing mould;

the upper die is fixed on the pressurizing and heating lifting platform, the lower die is clamped on the clamp platform, and the die core is compressed between the lower die and the upper die.

Based on this, still be provided with the anchor clamps of centre gripping in lower mould both sides on the anchor clamps platform, anchor clamps include the locating plate, and locating plate one side is provided with two at least centre gripping breachs, anchor clamps upper end still symmetry is provided with the locating piece, and threaded connection has the puller bolt on the locating piece.

The tube blank vulcanizing equipment can be well paired with a tube blank vulcanizing mold, has all characteristics brought by the mold, is convenient to assemble and disassemble, can ensure the temperature and pressure required by the mold, and has the characteristics of high vulcanizing efficiency, high vulcanizing accuracy and high finished product rate of the fabric reinforced rubber tube.

Finally, the utility model discloses a tube vulcanization technology of fabric enhancement mode rubber tube is still disclosed based on above tube vulcanization mould utensil and/or tube vulcanization equipment, including following step:

s1, preparing a tube blank with a fabric reinforcing layer by adopting rubber extrusion equipment;

s2, performing diameter expansion treatment on one end port of the tube blank, spraying a release agent on the inner wall of the tube blank twice, and blocking the tail end of the tube blank during spraying;

s3 wiping the inner core rod of the mold core with silicone oil, penetrating the tube blank on the mold core by taking the port for expanding treatment as a starting end, wherein the distance from the starting end to the sleeve joint is 5mm after the tube blank is penetrated, and the distance from the other end of the tube blank to the end part of the inner core rod is less than 3 mm;

s4, after the tube blank is inserted into the die core, placing the tube blank into a lower die cavity, pressing an upper die and matching the upper die with the lower die, and continuously increasing pressure until the upper die and the lower die complete die locking, wherein the die locking pressure is 20 MPa;

s5, after locking the mold, heating to 180-190 ℃ for vulcanization, wherein the vulcanization time is 6-10 min;

s6, opening the mold after vulcanization, taking out the lower mold and the mold core, and removing the vulcanized tube blank;

s7, soaking the die core for at least 20S, wherein the temperature of the die core is lower than 40 ℃ after soaking, and wiping water stains after soaking;

s8, cleaning the lower die, reassembling the lower die and the die core, and repeating the steps S3-S7.

The utility model discloses a tube vulcanization technology, but high efficiency's vulcanization pipe is in order to prepare fabric enhancement mode rubber tube, simple process, and is efficient, and the preparation fabric enhancement mode rubber tube of preparation has very high size precision and product uniformity, and the specially adapted prepares fabric enhancement mode rubber tube.

Drawings

FIG. 1 is a schematic view of a first structure of a tube blank vulcanizing mold of the invention, wherein a mold closing state is adopted;

FIG. 2 is a schematic view of a second structure of the tube blank vulcanizing mold of the present invention, wherein the upper mold is omitted;

FIG. 3 is a top view of the lower mold of the present invention;

fig. 4 is a side view of the lower mold of the present invention;

fig. 5 is a bottom view of the upper mold of the present invention;

fig. 6 is a side view of the upper die of the present invention;

fig. 7 is a front view of the mold core of the present invention;

fig. 8 is a side view of the mold core of the present invention;

FIG. 9 is a schematic view of a first structure of the tube blank vulcanizing device of the present invention, wherein the tube blank vulcanizing mold is in an open state, and the mold core is omitted;

FIG. 10 is a schematic view of a second structure of the tube blank vulcanizing apparatus of the present invention, wherein the tube blank vulcanizing mold is in a mold closing state;

FIG. 11 is a schematic view of the fitting structure of the lower mold and the clamp of the present invention;

the symbols in the figures are respectively represented as: 1. a lower die; 2. an upper die; 3. a mold core; 4. a vertical through hole; 5. a lower die cavity; 6. adjusting the gap; 7. a base plate; 8. positioning the opening; 9. a mold core positioning column; 10. a die positioning hole; 11. a concave cavity; 12. an upper mold cavity; 13. a mold positioning post; 14. a bump; 15. a fixed block; 16. a mold core positioning hole; 17. a die core frame; 18. an inner core rod; 19. sleeving a joint; 20. a through hole; 21. a tube blank vulcanizing equipment main body; 22. pressurizing and heating the lifting platform; 23. a clamp platform; 24. positioning blocks; 25. jacking the bolt; 26. positioning a plate; 27. and clamping the notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "one end", "the other end", "both ends", "between", "middle part", "lower part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-11, the utility model discloses at first a tube blank vulcanization mould utensil of fabric enhancement mode rubber tube, mainly used fabric enhancement mode rubber tube's preparation, it is at least including:

the mold core 3 is mainly composed of a mold core frame 17, the mold core frame 17 can be integrally arranged into a plate shape, a column shape, a strip shape and the like so as to be positioned better, a plurality of sleeve joints 19 are connected with two symmetrical sides of the mold core frame 17 along the length direction, a plurality of sleeve joints 19 can be arranged into a plate shape, a column shape, a strip shape and the like and are mainly used for limiting the end part of the tube blank and positioning the mold core frame 17, a plurality of sleeve joints 19 are preferably arranged at intervals so as to meet the working space and the molding pressure conditions of each sleeve joint 19 and ensure that the sleeve joints 19 are not influenced mutually, a plurality of sleeve joints 19 can be integrally formed with the mold core frame 17 by adopting an integral structure, such as mold casting, welding and polishing and the like, and the end parts of a plurality of sleeve joints 19 are necessarily connected with inner core rods 18, the inner core rods 18 are columnar structures, can be arranged into a rod shape, a bent tube shape, an irregular bent tube shape and a bent tube shape and the like according to needs and are mainly used for matching with the tube blank, the inner core rod 18 can be integrally formed with the socket joint 19 by adopting an integral structure; as is known, the die core frame 17, the socket joint 19, and the inner core rod 18 should be made of high temperature and high pressure resistant metal (such as carbon steel, nickel steel, nichrome steel, high strength stainless steel, etc.) to meet the die pressing requirements, and the specific material can be selected according to specific requirements, which belongs to the prior art and will not be described herein again.

The lower die 1 is used for supporting the die core 3, is generally positioned at the lower end of the die core 3, can be round, square, polygonal and the like in appearance, can be made of the same material as the die core 3 as a necessary structure, and is provided with a pressure bearing surface at the upper end surface of the lower die 1, and the pressure bearing surface is used for supporting the die core 3 and bearing pressure, so that a lower die cavity 5 is arranged on the pressure bearing surface to position the die core.

The upper die 2 is used for pressing the die core 3, is generally positioned at the upper end of the die core 3, can be in a shape of a circle, a square, a polygon and the like, can be made of the same material as the die core 3, and serves as a necessary structure, the lower end face of the upper die 2 is a pressing face used for pressing the die core 3 and the lower die 1, and therefore an upper die cavity 12 is formed in the pressing face to position the die core 3.

It should be noted that the upper mold cavity 12 and the lower mold cavity 5 are of a mutual matching structure, and the two can be matched with each other to form a mold core cavity, the whole structure, the shape, the size and the like of the mold core cavity are all consistent with those of the mold core 3 after the tube blank is sleeved, and the mold core 3 can be compressed between the lower mold 1 and the upper mold 2 and is sealed in the mold core cavity, so that a complete vulcanization mold structure is formed.

When specifically using, the utility model discloses a pipe is cleaning, cup joint the pipe of fabric enhancement mode after lubricating, place whole mold core 3 in the lower mould cavity 5 of lower mould 1 and location after cup jointing the completion, will go up mold 2 again and compress tightly on last mold 2 and pair, guarantee that the mold core die cavity compresses tightly mold core 3 sealed, then pressurize and heat last mold 2, can carry out the mould pressing vulcanization after will going up mold 2 and lower mould 1 and compressing tightly the compound die, will go up mold 2 and lower mould 1 separation die sinking after the vulcanization is accomplished, take out mold core 3, it can to vulcanize that pipe breaks away from interior plug 18, the vulcanization pipe who takes out is again through polishing, tailor, can obtain fabric enhancement mode rubber tube after handling such as cladding material. The utility model discloses utilize mold core 3 can overlap and establish a plurality of pipes and carry out the pipe in step and vulcanize, and the pipe is through the 18 steerable pipe internal diameters of interior plug, through the steerable pipe external diameters of mold core die cavity, the size of a plurality of pipes all can keep unanimous, and the finished product of vulcanization has very high uniformity, and can greatly shorten the vulcanization time, has improved vulcanization efficiency.

For further improving the vulcanization effect, the two sides of the sleeve joint 19 are symmetrically arranged in a mutually staggered mode, the structures are combined, the two sides of the sleeve joint 19 are mutually spaced, the two sides of the sleeve joint 19 are relatively symmetrically arranged and are mutually staggered in the length direction of the mold core frame 17, the mold core cavity space can be maximally utilized, a large space and a large space are reserved between every two inner core rods 18, and the mutual vulcanization environment (vulcanization temperature, pressure and the like) can be guaranteed not to be affected and basically kept consistent.

As the main structure of the mold core 3, both ends of the mold core frame 17 are connected with the fixed blocks 15 extending out of the mold core cavity, the fixed blocks 15 can be integrally formed with the mold core frame 17, the shape of the fixed blocks can be square, cylinder, polygonal and the like, the fixed blocks are mainly used for positioning the mold core frame 17 at the position of the upper mold 2 or the lower mold 1, the fixed blocks can also be used as a handheld part for conveniently loading and unloading the mold core frame 17 by hands, the fixed blocks can also be used as two heat conducting ends and are contacted with an external heating component to conduct heat to the mold core 3 for rapid heating, both ends of the mold core frame 17 are positioned between the two fixed blocks 15 and are also provided with a mold core positioning hole 16, the mold core positioning hole 16 can be a through hole or a blind hole with any section shape, the through hole or the blind hole is preferably vertically arranged along the vertical direction of the mold core frame 17, correspondingly, the mold core positioning column 9 matched and inserted with the mold core positioning hole 16 is also arranged in the lower mold cavity 5 of the lower mold 1, when the mold core frame 17 is matched with the lower mold core 1, the mold core positioning columns 9 are inserted into the mold core positioning holes 16, so that the mold core frame 17 can be accurately positioned in the lower mold cavity 5, and assembly errors are reduced.

In some embodiments, the core frame 17 is also provided with through holes 20 at both ends. This through-hole 20 symmetry sets up on die core frame 17 and vertical setting, and this through-hole 20 is used for placing, installs some and has elastic object like spring, flexure strip etc. to attached in last mould of pipe and damage when the drawing of patterns when preventing the die sinking, behind installation spring, flexure strip etc. in the through-hole 20, there is a reaction force during the die sinking, makes the pipe fall in the lower mould intracavity along with the reaction force when the die sinking, is convenient for the die sinking and can carry out fine protection to the pipe billet. In some embodiments, the through hole 20 may be a through hole penetrating through the mold core frame 17, or may be a blind hole not penetrating through the mold core frame 17, and the shape thereof may be designed according to the shape of the elastic object, such as a circle, a polygon, and the like.

Inner core rod 18 is as the piece that cup joints that pairs with the pipe the utility model discloses in, its concrete structure wholly is snakelike bending type and becomes the elbow structure that has many bent angles, its mainly by the straight tube portion of being connected with cup joint 19, with straight tube portion integrated into one piece's elbow portion and constitute with elbow portion integrated into one piece's lower bending portion, deviate from after the pipe vulcanizes, can form the rubber tube that has continuous camber, radian, many bent angles etc. need not the epilogue and carries out bending type again.

When vulcanizing, the mold core die cavity is paired by last die cavity 12 and lower die cavity 5 and is constituteed, consequently, in order to guarantee that mold core die cavity and cover establish the mold core 3 appearance of pipe accurate and unanimous, avoid appearing the pipe wall inhomogeneous because of pairing the pipe that leads to after vulcanizing, the irregular scheduling problem of pipe excircle, guarantee the vulcanization effect, the utility model discloses the up end bilateral symmetry at lower mould 1 is provided with the cavity 11 of indent, goes up the lower terminal surface bilateral symmetry of mould 2 and is provided with cavity 11 complex lug 14, when the two when pairing, thereby two lugs 14 and cavity 11 pair each other can be as the location structure of pairing will go up mould 2 and lower mould 1 accurate location and find the accuracy, realize accurate assembly. In some schemes, the bottom surface of the cavity 11 and the surface of the convex block 14 can be set to be inclined planes or partial inclined planes to increase the accuracy of alignment, and the lower mold cavity 5 or the upper mold cavity 12 can extend into the cavity 11 or the convex block 14 along the inclined plane part, so that the trend or the depth of the lower mold cavity 5 or the upper mold cavity 12 can be controlled by the inclined planes, and then the rubber tube with continuous bending, radian, multiple bending angles and the like can be prepared, thereby not only having good positioning and guiding effects, but also being suitable for the structure of the rubber tube.

Further, still the symmetry is provided with vertical through-hole 4 that runs through lower mould 1 in the cavity 11, this vertical through-hole 4 can let out the mould core die cavity intracavity air as the hole of losing heart in last mould 2 compresses tightly the in-process, the compound die of being convenient for, then be sealed by the lower terminal surface of last mould 2 when last mould 2 compresses tightly, guarantee the mould leakproofness after the compound die, and when needs the die sinking, because it does not have the air to be the negative pressure to go up mould 2 and lower mould 1 inside, consequently, the die sinking can be realized to great pulling force side of needs, and use great pulling force die sinking probably to tear inside pipe, vertical through-hole 4 this moment then can be used for the mould core die cavity to admit air as the inlet port, thereby can communicate mould core die cavity and exterior space, use less pressure to realize the die sinking, fabulous protection the inside pipe of mould core die cavity, the die sinking and compound die operation have been made things convenient for. In some schemes, at least two vertical through holes 4 of each cavity 11 are symmetrically arranged so as to uniformly intake air or discharge air, and the vertical through holes 4 are preferably arranged at the edge of the cavity 11 or at the lowest end of the inclined plane in some schemes so as to ventilate more smoothly and further reduce the difficulty of mold opening and mold closing.

Simultaneously when vulcanizing, the accurate of going up mould 2 and lower mould 1 is mated and has been decided the shaping effect of mold core die cavity, when guaranteeing the perfect match of mold core die cavity, still can set up mould locating hole 10 at the up end of lower mould 1, the lower terminal surface of going up mould 2 sets up the mould reference column 13 of pegging graft with mould locating hole 10, when the compound die, mould reference column 13 at first carries out preliminary location with mould locating hole 10 and finds accurately, guarantee to go up the basic of mould 2 and lower mould 1 and find accurately, can combine foretell cavity 11 and lug 14 to carry out the secondary positioning again, and then realize going up the accurate of mould 2 and lower mould 1 and mate. In some schemes, the mold positioning holes 10 can be uniformly provided with a plurality of upper end face edges located at the lower mold 1, and the mold positioning holes 10 are blind holes, so that the horizontal fitting and sealing of the matched end faces of the upper mold 2 and the lower mold 1 can be ensured while the positioning is performed, the blind holes can also serve as limiting holes to ensure the extrusion depth of the upper mold 2, and the bottom of each blind hole can be provided with a pressure sensor or a displacement sensor and the like to detect the depth of the mold positioning column 13 or apply pressure, so that the mold closing pressure and the depth of the upper mold 2 can be further controlled.

The utility model discloses a pipe vulcanization mould utensil is when using, and lower mould 1 generally needs fixed positioning in operation positions such as corresponding fixed station, operation panel, equipment workstation, consequently, for the convenience of lower mould 1 is fixed, the utility model discloses there is bottom plate 7 at 1 lower extreme of lower mould still swing joint, and the relative both sides of bottom plate 7 all are provided with a plurality of location mouth 8. The bottom plate 7 can assist the lower die 1 to be matched with the corresponding operation position in a fitting manner, and can also be matched with corresponding structures such as bolts and buckles through the positioning holes 8 on the bottom plate to be reinforced and fixed, so that the lower die 1 can be better connected and assembled with the corresponding operation position conveniently.

Meanwhile, adjusting notches 6 can be symmetrically arranged on two sides of the upper end of the lower die 1. Should adjust breach 6 can with location mouth 8 or when location mouth 8 can not realize fixedly, pair with setting element or anchor clamps that set up on corresponding operation position and constitute location fixture, be convenient for lower mould 1 is fixed or carry out the regulation of corresponding direction, should adjust breach 6 and set up in the edge of lower mould 1 upper end both sides best, and the regulation breach 6 of both sides preferably sets up two in order to the even centre gripping of lower mould 1 respectively at the interval, adjust breach 6 and set up to upper end and/or outside open-ended half open structure best, so that pair better with setting element or anchor clamps.

The above is the technical scheme of the tube blank vulcanizing mold of the utility model, on the basis of the above, the utility model also discloses a tube blank vulcanizing device of the fabric reinforced rubber tube, which comprises a tube blank vulcanizing device main body 21, wherein the tube blank vulcanizing device main body 21 can be a rubber injection press, a flat vulcanizing machine, a continuous vulcanizing machine, etc., specifically, a (200T pressure) Qianpu brand rubber injection press can be adopted, as the existing structure, the tube blank vulcanizing device main body 21 is at least provided with a clamp platform 23 (processing platform) for clamping a workpiece or a mold, and a pressurizing and heating lifting platform 22 for pressurizing and heating the workpiece or the mold; and be different from current structure, the utility model discloses a pipe vulcanization equipment is still including a pipe vulcanization mould, as the core of pipe vulcanization equipment, pipe vulcanization mould be for above embodiment pipe vulcanization mould, wherein, pipe vulcanization mould's last mould 2 is fixed in pressurization heating lift platform 22 down the terminal surface, it can be along with its lift and can transmit pressurization heating lift platform 22's heat, and lower mould 1 then centre gripping in anchor clamps platform 23 up end, and keep fixed, mold core 3 then compresses tightly between lower mould 1 and last mould 2, thereby can drive through pressurization heating lift platform 22 and compress tightly mold core 3, and with heat transfer to mold core 3 through last mould 2, vulcanize the pipe on the mold core 3.

The utility model discloses a pipe vulcanization equipment through the cooperation with pipe vulcanization mould utensil, can realize quick, efficient pipe vulcanization, vulcanizes efficiently, and goes up the vulcanization pressure between mould 2 and the lower mould 1 and can reach 20MPa, and the temperature can reach 180 ℃ -190 ℃ to can shorten the vulcanization time to 6min ~ 10min, and then reduced fabric enhancement mode rubber tube preparation man-hour, improved fabric enhancement mode rubber tube machining efficiency.

For better implementation, the utility model also discloses a tube blank vulcanization mould utensil and anchor clamps platform 23's clamping structure specifically is: the fixture platform 23 is further provided with fixtures clamped on two sides of the lower mold 1, the fixture comprises a positioning plate 26, one side of the positioning plate 26 is provided with at least two clamping notches 27, the upper end of the positioning plate 26 is further symmetrically provided with positioning blocks 24, and the positioning blocks 24 are in threaded connection with puller bolts 25. The positioning plate 26 can be directly placed on the clamp platform 23, the positioning plate 26 can be fixed with the clamp platform 23 through bolts, chucks and the like penetrating through the clamping gap 27, for example, a trapezoidal sliding groove can be arranged on the clamp platform 23, the head of the bolt is arranged in the trapezoidal sliding groove and slides into the clamping gap 27 to be locked through a nut, a telescopic structure (a hydraulic cylinder, a pneumatic cylinder, an electric push rod and the like) can also be arranged on the clamp platform 23, a tightening member such as a tightening column, a tightening block and the like is arranged at the telescopic end, the tightening member is tightly pressed in the clamping gap 27 to tightly press the positioning plate 26, and then the bottom plate 7 and the positioning port 8 in the scheme are matched to realize multidirectional fixed clamping, the clamping effect is good, the tightening bolt 25 can be rotated to tightly press the end part at the side surface of the lower die 1 or tightly pressed in the adjusting gap 6, so as to fix the lower die 1 by combining the above structure, and the position of the lower die 1 between the tightening bolts 25 at two sides can be adjusted through the tightening bolt 25, further, the lower die 1 can be displaced laterally to adjust the position.

Finally, the utility model also discloses a tube vulcanization technology of fabric enhancement mode rubber tube, including following step:

s1, preparing a tube blank with a fabric reinforcing layer by adopting rubber extrusion equipment;

in the step, the rubber extrusion equipment can be an extruder, a knitting machine or a tractor and the like, the inner diameter and the outer diameter of the pipe blank can be adjusted according to requirements, and the extruded pipe blank is completely cooled to room temperature.

S2, performing diameter expansion treatment on one end port of the tube blank, spraying a release agent on the inner wall of the tube blank twice, and blocking the tail end of the tube blank during spraying;

in the step, the diameter of the inner ring of the end opening of the tube blank and the leakage thread end in the end opening can be prevented by expanding the inner ring of the end opening of the tube blank by an expanding tool, the diameter of the inner ring after expanding is 1.1-1.2 times of the diameter of the mold core, a small amount of release agent can be uniformly sprayed on the inner wall of the tube blank after expanding, the release agent can be liquid release agents such as glycerol, silicone oil, polyethylene glycol and the like, the effective components sprayed per square meter are 30-50 g, the spraying can be carried out from the head end of the tube blank to the inner wall, the spraying is preferably carried out twice, the secondary spraying is carried out after the first spraying is completely dried, the tail end of the tube blank, namely the end opposite to the head end, is blocked during the two-time spraying, so that the release agent can be completely attached to the inner wall of the tube blank, the volatilization is avoided, the release agent can be uniformly diffused on the inner wall of the tube blank, and the uniform spraying is realized.

S3 wiping the inner core rod 18 (lower bending part) of the mold core 3 with silicone oil, and penetrating the tube blank on the mold core 3 by taking the end of the diameter expanding treatment as the starting end, wherein the distance from the starting end to the sleeve joint is 195 mm after the penetration, and the distance from the other end of the tube blank to the end part of the inner core rod 18 is less than 3 mm;

in the step, the lower bending part of the silicone oil wiping mold core is wiped by using dust-free cloth, a pipe blank is arranged to penetrate through the silicone oil wiping mold core, a certain distance is reserved between the sleeve joint 19 and the inner core rod 18, so that the pipe blank can be conveniently stretched in vulcanization size and demoulded after vulcanization, the uniformity of the pipe opening of the pipe blank is ensured, and the pipe blank is required to be immediately replaced when deformation, distortion, bulge, depression and line exposure of the pipe blank after core penetration are discovered during core penetration.

S4, after the tube blank is inserted into the mold core 3, placing the tube blank into the lower mold cavity 5, pressing the upper mold 2 and matching with the lower mold 1, and continuously increasing the pressure until the upper mold 2 and the lower mold 1 complete mold locking, wherein the mold locking pressure is 20 MPa;

in this step, the upper mold 2 can be lifted and pressed to be closed by the above-mentioned pressure heating lifting platform 22, and the mold locking should be performed first and then slowly, so as to ensure that the air between the upper mold 2 and the lower mold 1 is uniformly discharged.

S5, after locking the mold, heating to 180-190 ℃ for vulcanization, wherein the vulcanization time is 6-10 min;

in this step, similarly, the upper die 2 may be heated by the above-described pressure-heating elevating platform 22 to heat the core 3.

In the step, the temperature is raised for 3-5 min, and the vulcanization is carried out for 6-10 min after the temperature is raised to 180-190 ℃.

S6, opening the mold after vulcanization, taking out the lower mold 1 and the mold core 3, and removing the vulcanized tube blank;

in the step, when the tube blank is separated, the residual edge at the tail end of the tube blank, namely one end away from the end of the inner core rod 18, is required to be cleaned, and the residual edge is not cleaned, so that the tube blank easily enters the tube blank when the core is separated, and the cleaning difficulty is high.

S7, soaking the mold core 3 for at least 20S, wherein the temperature of the mold core 3 is lower than 40 ℃ after soaking, and wiping water stains after soaking;

in this step, the temperature of the inner core rod 18 must be lower than 40 ℃ to avoid the phenomenon that the inner wall of the tube blank is exposed due to overhigh temperature.

S8 cleaning the lower die 1, reassembling the lower die 1 and the die core 3, and repeating the steps S3-S7.

Based on the steps, the process can quickly and efficiently vulcanize the tube blank to prepare the fabric reinforced rubber tube, the process is simple, the efficiency is high, the prepared fabric reinforced rubber tube has high dimensional accuracy and product consistency, and the process is particularly suitable for preparing the fabric reinforced rubber tube.

It should be noted that, for some fabric reinforced rubber tubes made of special raw materials, such as fluororubber tubes and silicone rubber tubes, after the step S3 is completed, a layer of insulating material, such as nylon water-wrapped cloth, needs to be uniformly wound on the surface of the tube blank to prevent the vulcanizing agent from reacting with oxygen during the vulcanization process and prevent the vulcanizing agent from failing to cause insufficient vulcanization.

The above is the embodiment of the present invention. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for the purpose of clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, the patent protection scope of the present invention is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a pipe vulcanization mould utensil of fabric enhancement mode rubber tube which characterized in that includes:

the mould core (3) mainly comprises a mould core frame (17), wherein a plurality of sleeve joints (19) arranged at intervals are connected to two sides of the mould core frame (17), and inner core rods (18) used for penetrating through the tube blank are connected to the end parts of the sleeve joints (19);

the lower die (1) is used for supporting the die core (3), and a lower die cavity (5) is formed on the upper end surface of the lower die (1);

the upper die (2) is used for pressing the die core (3), and an upper die cavity (12) is formed on the lower end face of the upper die (2);

wherein the content of the first and second substances,

the upper die cavity (12) and the lower die cavity (5) can be matched with each other to form a die core die cavity, and the die core (3) can be pressed between the lower die (1) and the upper die (2) and is sealed in the die core die cavity.

2. A tube blank vulcanisation mould according to claim 1, characterized in that the nipples (19) of both sides are symmetrical and staggered with respect to each other.

3. A tube blank vulcanizing mould according to claim 1, characterized in that two ends of the die core frame (17) are connected with fixing blocks (15) extending out of the die core cavity, die core positioning holes (16) are arranged between the fixing blocks (15) at the two ends of the die core frame (17), and die core positioning columns (9) inserted into the die core positioning holes (16) are arranged in the lower die cavity (5).

4. A tube blank vulcanisation mould according to claim 3, characterized in that the core frame (17) is provided with through holes (20) at both ends.

5. A tube blank vulcanizing mold according to claim 1, characterized in that the inner core rod (18) is of a serpentine bending structure and mainly comprises a straight pipe part connected with the socket joint, a bent part integrally formed with the straight pipe part and a lower bent part integrally formed with the bent part.

6. A tube blank vulcanizing mold according to claim 1, characterized in that concave cavities (11) are symmetrically arranged on both sides of the upper end surface of the lower mold (1), convex blocks (14) matched with the cavities (11) are symmetrically arranged on both sides of the lower end surface of the upper mold (2), the bottom surface of the cavity (11) and the surfaces of the convex blocks (14) are inclined surfaces, and the lower mold cavity (5) or the upper mold cavity (12) extends into the cavity (11) or the convex blocks (14) along the inclined surface.

7. A tube blank vulcanizing mould according to claim 6, characterized in that vertical through holes (4) penetrating the lower mould (1) are also symmetrically arranged in the cavity (11).

8. The tube blank vulcanizing mold according to claim 1, characterized in that the upper end surface of the lower mold (1) is provided with a mold positioning hole (10), and the lower end surface of the upper mold (2) is provided with a mold positioning column (13) inserted into the mold positioning hole (10); the die positioning holes (10) are uniformly arranged in a plurality and are located at the edge of the upper end face of the lower die (1), and the die positioning holes (10) are all blind holes.

9. A tube blank vulcanizing mould according to claim 1, characterized in that the lower end of the lower mould (1) is movably connected with a bottom plate (7), and a plurality of positioning openings (8) are arranged on two opposite sides of the bottom plate (7).

10. A tube blank vulcanizing device of a fabric reinforced rubber tube, which comprises a tube blank vulcanizing device main body (21), wherein the tube blank vulcanizing device main body (21) is provided with a clamp platform (23) and a pressurizing and heating lifting platform (22) which are opposite up and down, and is characterized by further comprising a tube blank vulcanizing mold according to any one of claims 1 to 9;

wherein, go up mould (2) and be fixed in on pressurization heating lift platform (22), lower mould (1) centre gripping is on anchor clamps platform (23), mold core (3) compress tightly between lower mould (1) and last mould (2).

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