Preparation process of flame-retardant high-strength rubber conveying belt

Abstract

The invention belongs to the field of production of conveying belts, and particularly relates to a preparation process of a flame-retardant high-strength rubber conveying belt which comprises a feeding hopper fixedly connected with the feeding end of an extruder, a forming mold shell of a rectangular structure is fixedly connected to a lower side port of the feeding hopper, and the front side and the rear side of the forming mold shell are each of an open structure. And a feeding mechanism for feeding the steel wire rope framework is arranged on the forming mold shell. The feeding mechanism comprises three first material guiding assemblies arranged in the rear side of the forming mold shell, the three first material guiding assemblies are evenly distributed in the height direction of the forming mold shell, every two adjacent first material guiding assemblies are distributed in a front-back staggered mode, and a traction assembly is arranged in the forming mold shell and located on the front side of the three first material guiding assemblies. The conveying belt blank can be automatically filled with a plurality of steel wire ropes in the extrusion forming process of the conveying belt, so that the difficulty of adding a steel wire rope framework during extrusion forming of the conveying belt blank is reduced, and the performance strength of the conveying belt after extrusion forming is improved.

Description

Technical Field

[0001] The invention belongs to the field of conveyor belt production, and in particular relates to a preparation process of a flame-retardant high-strength rubber conveyor belt. Background Art

[0002] Flame retardant high-strength conveyor belt is a high-performance conveyor belt specially designed for transporting materials in industrial environments. It not only has high-strength mechanical properties to withstand long-term use under heavy loads and high stress conditions, but also has excellent flame retardant properties, which can provide additional safety protection under extreme conditions such as fire. Flame retardant high-strength conveyor belt mainly mixes a part of flame retardant materials in the rubber base material to increase its flame retardant properties, and adds materials such as steel wire rope or polyester fiber as a skeleton inside to strengthen the strength of the conveyor belt.

[0003] This flame-retardant high-strength rubber conveyor belt has the following defects during the preparation process: 1. In the process of preparing the conveyor belt through an extruder, the skeleton is usually inserted into the conveyor belt embryo after the conveyor belt embryo is extruded and before the conveyor belt embryo solidifies. This method of inserting the skeleton can easily cause hollowing of the internal structure of the conveyor belt embryo and requires high precision in skeleton insertion, especially when multiple layers of skeletons need to be inserted into the conveyor belt embryo. The operation is cumbersome and prone to defects. 2. When adding aggregates to the existing conveyor belt, the aggregates are generally placed straight inside the conveyor belt. This type of aggregate is installed inside the conveyor belt. When the conveyor belt is repeatedly stretched, compressed or bent, the straight steel wire rope is prone to stress concentration, which increases the risk of the conveyor belt breaking. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides a preparation process for a flame-retardant high-strength rubber conveyor belt, which can automatically fill multiple steel wire ropes into the interior of the conveyor belt blank during the extrusion molding of the conveyor belt, thereby reducing the difficulty of adding a steel wire rope skeleton when extruding the conveyor belt blank, and improving the performance strength of the conveyor belt after extrusion molding.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: The present invention provides a preparation process of a flame retardant high-strength rubber conveyor belt, and the preparation process of the flame retardant high-strength rubber conveyor belt specifically includes the following steps:

[0006] S1. Prepare raw materials and select appropriate rubber materials, flame retardants and wire rope skeletons.

[0007] S2: Skeleton treatment: surface treatment of the skeleton material.

[0008] S3, rubber mixing, adding the rubber material and the flame retardant into an internal mixer according to a certain ratio for mixing, so that the rubber material and the flame retardant are fully mixed.

[0009] S4, conveyor belt forming, the material mixed in step S3 is fed into an extruder and extruded to form a conveyor belt blank.

[0010] S5, cooling and shaping, the conveyor belt blank formed in step S4 is quickly cooled by a cooling device.

[0011] S6, vulcanization treatment, put the formed conveyor belt into a vulcanization tank for vulcanization treatment to make the rubber material undergo cross-linking reaction.

[0012] S7, subsequent finishing.

[0013] The preparation process of the flame retardant high-strength rubber conveyor belt using the above steps S1-S7 also specifically involves a flame retardant high-strength rubber conveyor belt preparation device in the process of preparing the flame retardant high-strength rubber conveyor belt, including a feeding hopper fixedly connected to the feeding end of the extruder, the lower side port of the feeding hopper is fixedly connected to a forming mold shell with a rectangular structure, and the front and rear sides of the forming mold shell are both arranged as open structures, the forming mold shell is provided with a through opening at the lower side port corresponding to the feeding hopper, and the forming mold shell is provided with a feeding mechanism for feeding the wire rope skeleton. The feeding mechanism includes three groups of first material guide components arranged inside the rear side of the forming mold shell, the three groups of first material guide components are evenly distributed along the height direction of the forming mold shell, and two adjacent first material guide components are staggered from top to bottom. A traction component is arranged inside the forming mold shell in front of the three groups of first material guide components, and a driving component is arranged on the right inner wall of the forming mold shell. A second material guide component is arranged in front of the traction component, and multiple groups of third material guide components are arranged above the forming mold shell and above the first material guide component. The third material guide component and the first material guide component cooperate with the traction component to pull the external wire rope skeleton into the interior of the forming mold shell, and the first material guide component cooperates with the driving component and the second material guide component to control the steel wire rope skeleton in the forming mold shell to change from a straight state to a curved state.

[0014] According to a favorable embodiment, the rear side of the molding mold shell is fixedly connected to the external sealing plate by bolts, and a notch is provided on the upper side of the molding mold shell near the rear side, a cover plate is fixed in the notch by bolts, the third material guide assembly is arranged on the cover plate, and a molding port with a trapezoidal structure is arranged at the front port of the molding mold shell.

[0015] According to a favorable embodiment, the third material guide assembly includes a guide frame fixedly mounted on the cover plate, a sealing block made of rubber material is arranged in the guide frame, three threading holes for the wire rope skeleton to pass through are jointly opened between the surface of the sealing block and the corresponding positions of the cover plate surface, a bracket with a left-right symmetrical and L-shaped structure is fixedly mounted on the upper side of the cover plate near the front side of the guide frame through a base, and four wire tie rods evenly distributed frontally and rearward are jointly fixedly mounted between the two horizontal sections of the bracket.

[0016] According to a preferred embodiment, the first material guide component includes two rotating rods rotatably arranged between the left and right side walls of the forming mold shell and symmetrically arranged up and down, a plurality of guide wheels are fixedly arranged on the two rotating rods corresponding to the upper and lower parts, and a plurality of side plates are rotatably arranged on the two rotating rods corresponding to the upper and lower parts, the side plates are rotatably connected to the side walls of the corresponding guide wheels, any same ends of the corresponding two rotating rods are commonly connected through a first gear set, and two adjacent first gear sets are commonly connected through a first pulley set, a first motor is fixedly arranged on a side wall of the forming mold shell away from the first gear set, and the output shaft of the first motor is fixedly connected to one end of the rotating rod located at the top in the middle first material guide assembly.

[0017] According to a preferred embodiment, the traction assembly includes three first slide rails distributed along the height direction of the forming mold shell, a plurality of second slide rails are fixedly provided on the rear side wall of the first slide rail, a plurality of first sliders are slidably provided on the first slide rail along its length direction, the lower side wall of the first slider is fixedly connected with a first ring through a first connecting block, a transmission plate is fixedly connected between the upper side walls of the plurality of first sliders at the same horizontal position, the transmission plate is connected to the driving assembly, a second slider is movably provided on the second slide rail, the second slider is fixedly provided on the second slide rail through a locking bolt, the lower side wall of the second slider is fixedly connected with a second ring through a second connecting block, two first connecting plates symmetrically provided on the front and rear side walls of the three first slide rails are fixedly provided with bolts, and two second connecting plates symmetrically provided on the front side walls of the three first slide rails are fixedly provided with bolts, and the second connecting plate is fixedly connected to the upper inner wall of the forming mold shell by bolts.

[0018] The cam is an assembly made of a plurality of first and second cams, each of which is adapted to engage with the first and second cams and to engage with the second cams in a manner that allows the cams to move relative to each other.

[0019] According to a preferred embodiment, two first ear plates are fixedly provided on the upper side wall of the first slide rail and are symmetrical to each other. A connecting rod is slidably provided between the corresponding left and right first ear plates. The transmission plate is fixedly provided on the connecting rod, and the connecting rod is connected to the driving assembly.

[0020] According to a favorable embodiment, the driving assembly includes two second ear plates fixedly arranged on the right inner wall of the molding mold shell and symmetrically arranged front to back, a crankshaft is arranged between the two second ear plates for common rotation, a third connecting plate is rotatably connected to the crankshaft, a fourth connecting plate is hingedly connected to the side of the third connecting plate away from the crankshaft, the left side of the fourth connecting plate is fixedly connected to the right ends of the three connecting rods, two guide columns symmetrically arranged up and down are slidably inserted on the surface of the fourth connecting plate, one end of the guide column is fixedly connected to the right inner wall of the molding mold shell, and a transmission assembly is commonly arranged between the crankshaft and the first material guide assembly in the middle position.

[0021] According to a favorable embodiment, the transmission assembly includes an isolation cover fixedly arranged on the right inner wall of the forming mold shell, a removable end cover is embedded on the upper surface of the isolation cover, one end of the crankshaft extends to the interior of the isolation cover and is fixedly connected with a sleeve, a spring is fixedly arranged in the sleeve, one end of the spring is fixedly connected with a female locking block, the female locking block is slidably arranged in the sleeve at one end close to the spring, and a locking groove with a rectangular structure is provided at one end of the female locking block away from the spring, a rotating shaft is rotatably arranged on the side of the isolation cover away from the crankshaft, and a sub-locking block with a rectangular structure that is adapted to the locking groove is fixedly connected to one end of the rotating shaft close to the female locking block, the end of the rotating shaft away from the isolation cover and the corresponding rotating rod are connected through a bevel gear set for transmission, the upper part of the female locking block is threadedly connected with the first threaded rod through the third ear plate, a support plate is fixedly arranged at a position close to the front side of the sleeve inside the isolation cover, one end of the crankshaft movably passes through the support plate, and a plurality of locking holes are provided on the surface of the support plate that are all adapted to the first threaded rod, and the plurality of locking holes are evenly distributed along the circumference of the sleeve.

[0022] According to a favorable embodiment, the second material guiding assembly includes six driving rollers rotatably arranged between the left and right side walls of the forming mold shell, the six driving rollers are symmetrically distributed in groups of two, any same end of the corresponding two driving rollers are commonly connected through a second gear group, and the two adjacent second gear groups are commonly connected through a second pulley group. A second motor is fixedly arranged on a side wall of the forming mold shell away from the second gear group, and the output shaft of the second motor is fixedly connected to one end of any one of the driving rollers. Three groups of guide assemblies are arranged to rotate together from top to bottom between the left and right inner side walls of the forming mold shell, and each group is composed of a plurality of guide rollers.

[0023] Compared with the prior art, the preparation process of a flame retardant high-strength rubber conveyor belt provided by the embodiment of the present invention has the following beneficial effects:

[0024] 1. In the present invention, the provided forming mold shell can cooperate with the feeding mechanism, and can automatically fill a plurality of steel wire ropes into the interior of the conveyor belt blank during the extrusion molding of the conveyor belt, thereby reducing the difficulty of adding the steel wire rope skeleton when extruding the conveyor belt blank, and improving the performance strength of the conveyor belt after extrusion molding.

[0025] 2. In the present invention, the traction assembly provided can cooperate with the driving assembly and the first material guide assembly, and can change the bending posture of the steel wire rope after it is filled into the conveyor belt embryo. It can control the steel wire rope to be filled in the conveyor belt embryo in a straight state according to requirements, and can also control the steel wire rope to be filled in the conveyor belt embryo in a curved state, so as to reduce the stress concentration problem of the conveyor belt when it is subjected to force, reduce the risk of the conveyor belt breakage, and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a flow chart of the preparation process of the flame-retardant high-strength rubber conveyor belt.

[0027] Figure 2 This is an external three-dimensional structural diagram of the equipment for preparing the flame-retardant high-strength rubber conveyor belt of the present invention.

[0028] Figure 3 It is a schematic diagram of the internal structure of the molding shell in the present invention.

[0029] Figure 4 It is a schematic diagram of the relative position connection of some structures of the feeding mechanism in the present invention.

[0030] Figure 5 It is a side view and a cross-sectional plan view of the forming mold shell in the present invention.

[0031] Figure 6 It is a schematic diagram of the relative position connection structure of the first material guiding component and the driving component in the present invention.

[0032] Figure 7 It is a side sectional plan view of the transmission assembly in the present invention.

[0033] Figure 8 It is an external three-dimensional structural diagram of the third material guiding component in the present invention.

[0034] Fig. 9 It is a schematic diagram of the relative position connection structure of the traction assembly and the driving mechanism in the present invention.

[0035] Fig.10 It is a schematic diagram of the local structure of the traction assembly in the present invention.

[0036] Fig.11 It is a schematic diagram of the disassembly and assembly of the second slide rail and the second slide block in the present invention.

[0037] Reference numerals in the figure: 1, feeding hopper; 2, forming mold shell; 3, feeding mechanism; 31, first material guide assembly; 311, rotating rod; 312, guide wheel; 313, side plate; 314, first motor; 32, traction assembly; 321, first slide rail; 322, second slide rail; 323, first slider; 324, first sleeve; 325, transmission plate; 326, second slider; 327, second sleeve; 328, first connecting plate; 329, second connecting plate; 330, positioning pin; 33, driving assembly; 331, crankshaft; 3 32. The third connecting plate; 333. The fourth connecting plate; 334. The guide column; 34. The second material guide assembly; 341. The driving roller; 342. The second motor; 35. The third material guide assembly; 351. The guide frame; 352. The sealing block; 353. The bracket; 354. The cable tie rod; 4. The cover plate; 5. The connecting rod; 6. The transmission assembly; 61. The isolation cover; 62. The end cover; 63. The sleeve; 64. The mother locking block; 65. The rotating shaft; 66. The sub-locking block; 67. The bevel gear set; 68. The first threaded rod; 69. The support plate; 7. The guide roller. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-11 This application is further described in detail.

[0039] See also Figure 1 , one A preparation process of a flame retardant high-strength rubber conveyor belt, the preparation process of the flame retardant high-strength rubber conveyor belt specifically comprises the following steps:

[0040] S1. Prepare raw materials and select suitable rubber materials. This solution selects styrene-butadiene rubber and adds an appropriate amount of aluminum hydroxide flame retardant. At the same time, steel wire rope is selected as the filling skeleton.

[0041] S2. Skeleton processing: cleaning and sandblasting the surface of the skeleton material.

[0042] S3, rubber mixing, adding the rubber material and the flame retardant into an internal mixer according to a certain ratio for mixing, so that the rubber material and the flame retardant are fully mixed.

[0043] S4, conveyor belt forming, the material mixed in the internal mixer is fed into the extruder, the extruder extrude the material and move toward its feeding end, during this process, the steel wire rope skeleton is synchronously fed into the inside of the extruder feeding end, and the steel wire rope skeleton is synchronously filled into the conveyor belt embryo while the conveyor belt embryo is extruded and formed.

[0044] S5, cooling and shaping, the formed conveyor belt embryo is quickly cooled by cooling equipment to make the rubber material undergo cross-linking reaction, thereby improving the strength and wear resistance of the conveyor belt. During the vulcanization process, parameters such as temperature, pressure and time need to be controlled to ensure the vulcanization effect.

[0045] S6, vulcanization treatment, put the formed conveyor belt into a vulcanization tank for vulcanization treatment to make the rubber material undergo cross-linking reaction.

[0046] S7, subsequent finishing, post-processing of the vulcanized conveyor belt, such as cutting, grinding, packaging, etc., to obtain the final flame retardant high-strength rubber conveyor belt product.

[0047] See also Figure 2 and Figure 4 The preparation process of the flame-retardant high-strength rubber conveyor belt using the above steps S1-S7 also specifically involves a flame-retardant high-strength rubber conveyor belt preparation device in the process of preparing the flame-retardant high-strength rubber conveyor belt, including a feeding hopper 1 fixedly connected to the feeding end of the extruder, and the lower side port of the feeding hopper 1 is fixedly connected to a forming mold shell 2 with a rectangular structure, and the forming mold shell 2 is provided with a through opening at the lower side port corresponding to the feeding hopper 1, and the front and rear sides of the forming mold shell 2 are both set as open structures, the rear side of the forming mold shell 2 is fixedly connected to the external sealing plate by bolts, and a notch is provided on the upper side of the forming mold shell 2 near the rear side, and a cover plate 4 is fixedly provided in the notch by bolts, and a trapezoidal forming opening is provided at the front side port of the forming mold shell 2. A feeding mechanism 3 for feeding the steel wire rope skeleton is provided on the forming mold shell 2. The material extruded by the extruder enters the forming mold shell 2 through the feeding hopper 1, and the feeding mechanism 3 simultaneously feeds the steel wire rope into the inside of the forming mold shell 2, and moves toward the forming port on the front side of the forming mold shell 2 along with the material inside the forming mold shell 2 and is finally extruded into a conveyor belt embryo.

[0048] See also Figure 2 and Figure 3 The feeding mechanism 3 includes three groups of first material guide components 31 arranged inside the rear side of the molding mold shell 2, the three groups of first material guide components 31 are evenly distributed along the height direction of the molding mold shell 2, and two adjacent first material guide components 31 are staggered from top to bottom. A traction component 32 is arranged inside the molding mold shell 2 in front of the three groups of first material guide components 31, and a driving component 33 is arranged on the right inner wall of the molding mold shell 2, a second material guide component 34 is arranged on the front side of the traction component 32, and a plurality of third material guide components 35 are arranged on the upper side of the cover plate 4 above the first material guide components 31.

[0049] In order to facilitate the filling of the wire rope skeleton during the extrusion molding process of the conveyor belt, the wire rope is guided by the third material guide component 35, and then successively pulled by the first material guide component 31 and the second material guide component 34 to gradually approach the position of the front molding port of the molding mold shell 2. The wire rope will move toward the front molding port of the molding mold shell 2 under the push of the first material guide component 31 and the second material guide component 34. At the same time, since the extrusion force inside the molding mold shell 2 is greater the closer to the molding port position, when the material inside the molding mold shell 2 moves toward the front molding port of the molding mold shell 2 under the action of pressure, it can also assist the positioning of the wire rope and pull the wire rope to move outside the front molding port of the molding mold shell 2, so that there is a group of wire rope skeletons composed of multiple wire ropes in the same horizontal plane inside the molding mold shell 2, and there are three groups of identical wire rope skeletons in the vertical direction, so that after the material is extruded and molded through the front molding port of the molding mold shell 2, the wire rope skeleton can be synchronously filled inside it, and the filling of the wire rope skeleton is more convenient.

[0050] See also Figure 2 , Figure 5 and Figure 8 The third material guide assembly 35 includes a guide frame 351 fixedly arranged on the cover plate 4, a rubber sealing block 352 is arranged in the guide frame 351, three threading holes for the steel wire skeleton to pass through are opened between the surface of the sealing block 352 and the corresponding position of the surface of the cover plate 4, a bracket 353 with a left-right symmetric and L-shaped structure is fixedly arranged on the upper side of the cover plate 4 near the front side of the guide frame 351, and four tie rods 354 evenly distributed front and back are fixedly arranged between the horizontal sections of the two brackets 353. Three openings for the steel wire to pass through can be formed between the four corresponding tie rods 354 and the horizontal sections of the two brackets 353. After the steel wire passes through the opening, it passes through the threading holes on the surface of the sealing block 352 to guide the steel wire into the forming shell 2.

[0051] See also Figure 2 , Figure 3 , Figure 4 and Figure 6The first material guide assembly 31 includes two rotating rods 311 rotatably disposed between the left and right side walls of the forming mold shell 2 and symmetrically disposed in the upper and lower parts. Multiple guide wheels 312 are fixedly disposed on the two rotating rods 311, and multiple side plates 313 are rotatably disposed on the two corresponding rotating rods 311. The side plates 313 are rotatably connected to the side walls of the corresponding guide wheels 312. Any same end of the corresponding two rotating rods 311 is commonly connected through the first gear set, and the two adjacent first gear sets are commonly connected through the first pulley set. A first motor 314 is fixedly disposed on a side wall of the forming mold shell 2 away from the first gear set. The output shaft of the first motor 314 is fixedly connected to one end of the rotating rod 311 located at the top in the middle first material guide assembly 31. One end of the steel wire rope entering the forming mold shell 2 through the third material guide assembly 35 passes through the passage formed between the two corresponding guide wheels 312, and the guide wheel 312 rolls against the surface of the steel wire rope. The corresponding rotating rod 311 is driven to rotate by the first motor 314, and all the rotating rods 311 can be rotated in conjunction with the three first gear sets and the two first pulley sets, and the two adjacent upper and lower corresponding rotating rods 311 rotate towards each other, driving the wire rope to move toward the front molding port of the molding shell 2.

[0052] See also Figure 3 , Figure 4 , Fig. 9 , Fig.10 and Fig.11 The traction assembly 32 includes three first slide rails 321 distributed along the height direction of the forming mold shell 2, a plurality of second slide rails 322 are fixedly arranged on the rear side wall of the first slide rail 321, a plurality of first sliders 323 are slidably arranged on the first slide rail 321 along its length direction, the lower side wall of the first slider 323 is fixedly connected with a first ring 324 through a first connecting block, a transmission plate 325 is fixedly connected between the upper side walls of the plurality of first sliders 323 at the same horizontal position, two left-right symmetrical first ear plates are fixedly arranged on the upper side wall of the first slide rail 321, a connecting rod 5 is slidably arranged between the corresponding left and right first ear plates, the transmission plate 325 is fixedly arranged on the connecting rod 5, and the connecting rod 5 is connected to the driving assembly 33. A second slider 326 is movably arranged on the second slide rail 322, and the second slider 326 is fixed on the second slide rail 322 by a locking bolt, and the lower side wall of the second slider 326 is fixedly connected to the second ring 327 by a second connecting block, and two left-right symmetrical first connecting plates 328 are fixedly arranged on the front and rear side walls of the three first slide rails 321 by bolts, and two left-right symmetrical second connecting plates 329 are fixedly arranged on the front side walls of the three first slide rails 321 by bolts, and the second connecting plates 329 are fixedly connected to the upper inner wall of the forming mold shell 2 by bolts.

[0053] The first guide assembly 324 is used to pull the first slider 323 back and forth, so that the portion of the steel wire rope close to the rear side of the molding mold shell 2 is fed through the guide wheel 312 and is bent by the traction of the first guide assembly 324. At the same time, the portion of the steel wire rope close to the molding opening on the front side of the molding mold shell 2 is positioned by the second guide assembly 34. When the steel wire rope is bent by the traction of the first guide assembly 324, the steel wire rope is avoided from being pulled back, and the steel wire rope is kept in a certain bending posture as much as possible to move toward the molding opening on the front side of the molding mold shell 2, so that the steel wire rope filled in the material will be in a bending posture while the material in the molding mold shell 2 is extruded and formed. The curved design can distribute the stress more evenly on the wire rope, reduce local stress concentration, reduce the risk of breakage, and extend the service life. The curved structure can provide a certain buffering effect when impacted, reduce the impact on the entire conveyor belt, and protect other components from damage.

[0054] See also Fig.10 and Fig.11The first slide rail 321 has a plurality of first slide grooves evenly distributed along its length direction, the first slider 323 is slidably arranged in the first slide groove, a first slide hole is arranged on the lower inner wall of the first slide groove, the first connecting block is slidably arranged in the first slide hole, a second slide groove extending along its length direction is arranged on the rear side wall of the second slide rail 322, the second slide groove 326 is slidably arranged in the second slide groove, the lower side wall of the second slide groove has a second slide hole, the second connecting block is slidably arranged in the second slide hole, the lower side wall of the second slide groove and the left and right sides of the second slide hole have a plurality of positioning holes distributed along the length direction of the second slide groove, the lower side wall of the second slide groove and the left and right sides of the second slide hole are fixedly provided with two symmetrical positioning pins 330, the positioning pins 330 are movably inserted in the positioning holes, the upper side wall of the second slide rail 322 is provided with a third slide hole in the shape of a strip extending into the second slide groove, the lower end of the locking bolt passes through the third slide hole and is threadedly connected to the upper side wall of the second slide groove. The first slider 323 can move on the first slider rail 321 through the first slider groove when the transmission plate 325 moves, and the second slider 326 is fixed to the second slider rail 322 by a locking bolt. When necessary, the second slider 326 can be released from the limit by rotating the locking bolt, and then the second slider 326 can be pushed upward so that the positioning pin 330 on the lower side of the second slider 326 can be pulled out from the positioning hole. After the second slider 326 is moved to the appropriate position, the positioning pin 330 is inserted into the corresponding positioning hole, and then the second slider 326 is locked by the locking bolt to adjust the distance between the first slider 323 and the second slider 326.

[0055] See also Figure 3 , Figure 4 , Figure 6 and Fig. 9 The driving assembly 33 includes two second ear plates fixedly arranged on the right inner wall of the forming mold shell 2 and symmetrical in front and back, a crankshaft 331 is rotatably arranged between the two second ear plates, a third connecting plate 332 is rotatably connected to the crankshaft 331, a fourth connecting plate 333 is hingedly connected to the side of the third connecting plate 332 away from the crankshaft 331, the left side of the fourth connecting plate 333 is fixedly connected to the right ends of the three connecting rods 5, two guide posts 334 symmetrical in top and bottom are slidably inserted on the surface of the fourth connecting plate 333, one end of the guide post 334 is fixedly connected to the right inner wall of the forming mold shell 2, and a transmission assembly 6 is jointly arranged between the crankshaft 331 and the first material guide assembly 31 at the middle position. The crankshaft 331 is rotated by the transmission assembly 6, so that the third connecting plate 332 pushes and pulls the fourth connecting plate 333 back and forth under the cooperation of the guide post 334 to drive the connecting rod 5 to move, thereby controlling the first ring 324 to move back and forth.

[0056] See also Figure 3 , Figure 6 and Figure 7The transmission assembly 6 includes an isolation cover 61 fixedly arranged on the right inner wall of the forming mold shell 2, and a detachable end cover 62 is embedded on the upper surface of the isolation cover 61. One end of the crankshaft 331 extends to the interior of the isolation cover 61 and is fixedly connected with a sleeve 63. A spring is fixedly arranged in the sleeve 63, and one end of the spring is fixedly connected with a female locking block 64. The female locking block 64 is slidably arranged in the sleeve 63 at one end close to the spring, and a locking groove with a rectangular structure is opened at one end of the female locking block 64 away from the spring. A rotating shaft 65 is rotatably arranged on the side of the isolation cover 61 away from the crankshaft 331, and the rotating shaft 65 is close to the female locking block 64. One end of the locking block 64 is fixedly connected to a sub-locking block 66 that is adapted to the locking groove and has a rectangular structure. The end of the rotating shaft 65 away from the isolation cover 61 is connected to the corresponding rotating rod 311 through a bevel gear set 67. The upper part of the female locking block 64 is threadedly connected to the first threaded rod 68 through a third ear plate. A support plate 69 is fixedly provided at a position near the front side of the sleeve 63 inside the isolation cover 61. One end of the crankshaft 331 movably penetrates the support plate 69. A plurality of locking holes that are adapted to the first threaded rod 68 are opened on the surface of the support plate 69, and the plurality of locking holes are evenly distributed along the circumference of the sleeve 63. When it is necessary to control the steel wire rope to be filled in the conveyor belt blank in a bent posture, the locking sub-block is inserted into the locking groove on the side wall of the locking mother block, so that the rotating shaft 65 is fixedly connected to the crankshaft 331. When the rotating rod 311 rotates, the rotating shaft 65 will be synchronously driven to rotate through the bevel gear set, thereby rotating the crankshaft 331; when it is not necessary to control the steel wire rope to be filled in the conveyor belt in a bent posture, before preparation, open the cover plate 4 on the upper side of the forming mold shell 2, and then open the end cover 62 on the upper side of the isolation cover 61, first manually rotate the crankshaft 331 so that the crankshaft 331 pulls the first slider 323 to the middle position corresponding to the first slide groove, and then rotate the first threaded rod 68 so that the first threaded rod 68 is inserted into the corresponding locking hole on the support plate 69, so that the mother locking block 64 and the support plate 69 are relatively fixed and cannot rotate, thereby making the crankshaft 331 unable to rotate, and the steel wire rope can only move along a straight line inside the forming mold shell 2.

[0057] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The second material guiding assembly 34 includes six driving rollers 341 rotatably arranged between the left and right side walls of the forming mold shell 2. The six driving rollers 341 are symmetrically distributed in groups of two up and down. Any same end of the corresponding two driving rollers 341 is commonly connected through a second gear set, and the two adjacent second gear sets are commonly connected through a second pulley set. A second motor 342 is fixedly arranged on a side wall of the forming mold shell 2 away from the second gear set, and the output shaft of the second motor 342 is fixedly connected to one end of any driving roller 341. Three groups of guide assemblies are commonly rotated from top to bottom between the left and right inner side walls of the forming mold shell 2, and each group is composed of a plurality of guide rollers 7. Initially, the steel wire rope is manually passed through the third material guide assembly 35, the first material guide assembly 31 and the second material guide assembly 34 in sequence, so that the end of the steel wire rope is outside the molding port on the front side of the molding mold shell 2. At this time, the steel second material guide assembly 34 and the steel wire rope in the molding port area on the front side of the molding mold shell 2 are supported by the guide roller 7 in the guide assembly, and each steel wire rope is rolled and colliding with the upper and lower driving rollers 341, and then the second motor 342 drives the corresponding driving roller 341 to rotate, and with the cooperation of the second gear set and the second pulley set, all the driving rollers 341 rotate, and the adjacent upper and lower driving rollers 341 rotate in opposite directions to drive the steel wire rope to move toward the molding port on the front side of the molding mold shell 2. The two driving rollers 341 that roll and conflict with the steel wire rope can not only position the steel wire rope to prevent the steel wire rope from pulling back when bending, but also drive the steel wire rope to actively move toward the molding port on the front side of the molding mold shell 2.

[0058] During specific operation, the feed hopper 1 is connected to the feed port of the extruder, and the opening on the rear side of the forming mold shell 2 is sealed by an external sealing plate. Then the wire rope is passed through the corresponding two guide wheels 312, the second ring 327, the first ring 324 and the corresponding two drive rollers 341 in turn, and then passes through the forming port on the front side of the forming mold shell 2. During operation, the material is fed into the extruder, and the extruder gradually feeds the material from its feeding port into the feed hopper 1 through its internal spiral conveying auger, and finally enters the interior of the forming mold shell 2. The front side forming port of the forming mold shell 2 is flat, and the pressure of the material gradually increases with the movement and is finally extruded into a conveyor belt embryo. During this process, the wire rope is synchronously filled into the gradually formed conveyor belt embryo with the cooperation of the third material guide component 35, the first material guide component 31, the traction component 32 and the second material guide component 34, thereby completing the production of the conveyor belt embryo, and then performing subsequent processing.

[0059] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A preparation process of a flame retardant high-strength rubber conveyor belt, characterized in that: The preparation process of the flame retardant high-strength rubber conveyor belt specifically comprises the following steps: S1. Raw material preparation, selection of appropriate rubber material, flame retardant and wire rope skeleton; S2, skeleton treatment, surface treatment of skeleton materials; S3, rubber mixing, adding the rubber material and the flame retardant into an internal mixer according to a certain ratio for mixing, so that the rubber material and the flame retardant are fully mixed; S4, conveyor belt forming, feeding the mixed material in step S3 into an extruder for extrusion forming into a conveyor belt embryo; S5, cooling and shaping, the conveyor belt blank formed in step S4 is quickly cooled by a cooling device; S6, vulcanization treatment, putting the formed conveyor belt into a vulcanization tank for vulcanization treatment to make the rubber material undergo a cross-linking reaction; S7, subsequent finishing; The process for preparing a flame-retardant high-strength rubber conveyor belt using the above steps S1-S7 also specifically involves a flame-retardant high-strength rubber conveyor belt preparation device in the process of preparing the flame-retardant high-strength rubber conveyor belt, comprising a feeding hopper (1) fixedly connected to the feeding end of an extruder, a lower port of the feeding hopper (1) fixedly connected to a forming mold shell (2) with a rectangular structure, and the front and rear sides of the forming mold shell (2) are both arranged as open structures, a through opening is opened at the lower port of the forming mold shell (2) corresponding to the feeding hopper (1), and a feeding mechanism (3) for feeding a steel wire rope skeleton is arranged on the forming mold shell (2); The feeding mechanism (3) comprises three groups of first material guide components (31) arranged inside the rear side of the molding mold shell (2), the three groups of first material guide components (31) are evenly distributed along the height direction of the molding mold shell (2), and two adjacent first material guide components (31) are staggered from top to bottom and front to back, a traction component (32) is arranged inside the molding mold shell (2) and located in front of the three groups of first material guide components (31), and a driving component (33) is arranged on the right inner wall of the molding mold shell (2), a second material guide component (34) is arranged in front of the traction component (32), and a plurality of groups of third material guide components (35) are arranged above the molding mold shell (2) and above the first material guide components (31); The third material guide component (35) and the first material guide component (31) cooperate with the traction component (32) to pull the external wire rope skeleton into the interior of the forming shell (2), and the first material guide component (31) cooperates with the drive component (33) and the second material guide component (34) to control the steel wire rope skeleton in the forming shell (2) to transform from a straight state to a curved state.

2. The preparation process of a flame retardant high-strength rubber conveyor belt according to claim 1, characterized in that: The rear side of the molding shell (2) is fixedly connected to the external sealing plate by bolts, and a notch is provided on the upper side of the molding shell (2) near the rear side, a cover plate (4) is fixedly arranged in the notch by bolts, the third material guide assembly (35) is arranged on the cover plate (4), and a molding port of a trapezoidal structure is arranged at the front port of the molding shell (2).

3. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 2, characterized in that: The third material guide assembly (35) comprises a guide frame (351) fixedly arranged on the cover plate (4), a sealing block (352) made of rubber material is arranged in the guide frame (351), three threading holes for the wire rope skeleton to pass through are provided between the surface of the sealing block (352) and the corresponding positions of the surface of the cover plate (4), a bracket (353) which is symmetrical on both sides and has an L-shaped structure is fixedly arranged on the upper side of the cover plate (4) near the front side of the guide frame (351) through a base, and four wire tie rods (354) evenly distributed frontally and rearward are fixedly arranged between the horizontal sections of the two brackets (353).

4. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 1, characterized in that: The first material guide component (31) comprises two rotating rods (311) rotatably arranged between the left and right side walls of the molding module and symmetrically arranged in the upper and lower directions. A plurality of guide wheels (312) are fixedly arranged on the two rotating rods (311), and a plurality of side plates (313) are rotatably arranged on the two corresponding rotating rods (311) above and below. The side plates (313) are rotatably connected to the side walls of the corresponding guide wheels (312). Any same ends of the corresponding two rotating rods (311) are commonly connected through a first gear set for transmission, and two adjacent first gear sets are commonly connected through a first pulley set for transmission. A first motor (314) is fixedly arranged on a side wall of the molding shell (2) away from the first gear set, and an output shaft of the first motor (314) is fixedly connected to one end of the rotating rod (311) located at the top in the middle of the first material guide component (31).

5. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 1, characterized in that: The traction assembly (32) comprises three first slide rails (321) distributed along the height direction of the forming mold shell (2); a plurality of second slide rails (322) are fixedly arranged on the rear side wall of the first slide rail (321); a plurality of first sliders (323) are slidably arranged on the first slide rail (321) along its length direction; a first sleeve (324) is fixedly connected to the lower side wall of the first slider (323) via a first connecting block; a transmission plate (325) is fixedly connected between the upper side walls of the plurality of first sliders (323) at the same horizontal position; the transmission plate (325) is connected to the driving assembly (33); and the second slide rail (322) ) is movably provided with a second slider (326), the second slider (326) is fixedly provided on the second slide rail (322) by a locking bolt, the lower side wall of the second slider (326) is fixedly connected to the second ring (327) by a second connecting block, two left-right symmetrical first connecting plates (328) are fixedly provided on the front and rear side walls of the three first slide rails (321) by bolts, and two left-right symmetrical second connecting plates (329) are fixedly provided on the front side walls of the three first slide rails (321) by bolts, and the second connecting plates (329) are fixedly connected to the upper inner wall of the forming mold shell (2) by bolts.

6. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 5, characterized in that: The upper side of the first slide rail (321) is provided with a plurality of first slide grooves evenly distributed along the length direction thereof, the first slider (323) is slidably arranged in the first slide groove, a first slide hole is arranged on the lower inner wall of the first slide groove, the first connecting block is slidably arranged in the first slide hole, a second slide groove extending along the length direction thereof is arranged on the rear side wall of the second slide rail (322), the second slider (326) is slidably arranged in the second slide groove, a second slide hole is arranged on the lower inner wall of the second slide groove, the second connecting block is slidably arranged in the first slide hole, Placed in the second sliding hole, the lower side wall of the second sliding groove and the left and right sides of the second sliding hole are provided with a plurality of positioning holes distributed along the length direction of the second sliding groove, the lower side wall of the second sliding block (326) is fixedly provided with two left-right symmetrical positioning pins (330), the positioning pins (330) are movably inserted in the positioning holes, and the upper side wall of the second sliding rail (322) is provided with a third sliding hole in the shape of a strip extending into the second sliding groove, the lower end of the locking bolt passes through the third sliding hole and is threadedly connected to the upper side wall of the second sliding block (326).

7. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 5, characterized in that: Two left-right symmetrical first ear plates are fixedly arranged on the upper side wall of the first slide rail (321), a connecting rod (5) is slidably arranged between the two corresponding left and right first ear plates, the transmission plate (325) is fixedly arranged on the connecting rod (5), and the connecting rod (5) is connected to the driving assembly (33).

8. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 7, characterized in that: The driving assembly (33) comprises two second ear plates fixedly arranged on the right inner wall of the molding mold shell (2) and symmetrical in front and back, a crankshaft (331) is rotatably arranged between the two second ear plates, a third connecting plate (332) is rotatably connected to the crankshaft (331), a fourth connecting plate (333) is hingedly connected to the side of the third connecting plate (332) away from the crankshaft (331), the left side of the fourth connecting plate (333) is fixedly connected to the right ends of the three connecting rods (5), two guide columns (334) symmetrical in upper and lower directions are slidably inserted on the surface of the fourth connecting plate (333), one end of the guide column (334) is fixedly connected to the right inner wall of the molding module, and a transmission assembly (6) is commonly arranged between the crankshaft (331) and the first material guide assembly (31) at the middle position.

9. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 8, characterized in that: The transmission assembly (6) comprises an isolation cover (61) fixedly arranged on the right inner wall of the forming mold shell (2), a removable end cover (62) is embedded in the upper surface of the isolation cover (61), one end of the crankshaft (331) extends into the interior of the isolation cover (61) and is fixedly connected to a sleeve (63), a spring is fixedly arranged in the sleeve (63), one end of the spring is fixedly connected to a female locking block (64), the female locking block (64) is slidably arranged in the sleeve (63) at one end close to the spring, and a locking groove with a rectangular structure is provided at one end of the female locking block (64) away from the spring, and a rotating shaft (65) is rotatably arranged on the side of the isolation cover (61) away from the crankshaft (331), and the rotating shaft (65) is rotatably arranged ) is fixedly connected to one end of the female locking block (64) which is adapted to the locking groove and has a rectangular structure; one end of the rotating shaft (65) which is away from the isolation cover (61) is connected to the corresponding rotating rod (311) through a bevel gear set (67); the upper part of the female locking block (64) is threadedly connected to the first threaded rod (68) through a third ear plate; a support plate (69) is fixedly provided inside the isolation cover (61) at a position close to the front side of the sleeve (63); one end of the crankshaft (331) movably passes through the support plate (69); a plurality of locking holes which are adapted to the first threaded rod (68) are opened on the surface of the support plate (69); and the plurality of locking holes are evenly distributed along the circumference of the sleeve (63).

10. The process for preparing a flame retardant high-strength rubber conveyor belt according to claim 1, characterized in that: The second material guiding assembly (34) comprises six driving rollers (341) rotatably arranged between the left and right side walls of the forming mold shell (2), the six driving rollers (341) are symmetrically distributed in groups of two, any same end of two corresponding driving rollers (341) are commonly connected through a second gear group, and two adjacent second gear groups are commonly connected through a second pulley group. A second motor (342) is fixedly arranged on a side wall of the forming mold shell (2) away from the second gear group, and the output shaft of the second motor (342) is fixedly connected to one end of any driving roller (341). Three groups of guide assemblies are rotatably arranged between the left and right inner side walls of the forming mold shell (2) from top to bottom, and each group is composed of a plurality of guide rollers (7).

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