Extrusion device and method for rubber preforms for high-speed rail fasteners

Abstract

The invention relates to the technical field of rubber processing, and discloses a rubber preform extrusion device and method for high-speed rail fasteners, the rubber preform extrusion device comprises a base, a pretreatment assembly is arranged on one side of the upper surface of the base, an extruder is fixedly connected to the upper surface of the base, and the output end of the extruder is sleeved with a cooling assembly; a shaping assembly is arranged on the other side of the upper surface of the base and comprises a supporting table, a first conveying belt is installed at the upper end in the supporting table, and a first water storage tank, a second water storage tank and a third water storage tank are arranged in the supporting table and located under the first conveying belt; and a plurality of spray heads are fixedly connected to the upper end of the supporting table. The rubber strip is cooled through the multi-stage cooling assembly, internal stress of the rubber strip caused by sudden change of temperature difference is avoided, deformation and cracking are effectively prevented, and the product size precision and performance reliability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber processing, and in particular to a device and method for extruding a rubber preform for a high-speed rail fastener. Background Art

[0002] In the production process of high-speed rail fasteners, the quality of the rubber preform directly affects the firmness and overall safety of the mechanical connection. However, the existing technology has several significant defects in the manufacturing process of rubber preforms.

[0003] First, existing mixing equipment often fails to achieve uniform mixing of rubber raw materials and additives during pre-treatment, resulting in unstable performance of the resulting rubber preforms, impacting product quality and reliability. Furthermore, inefficient energy utilization during the production process increases production costs and places an unnecessary burden on companies.

[0004] During the extrusion process, if there is a lack of reasonable and effective processes and equipment for the cooling and shaping of the rubber strips and the subsequent cutting processing, the rubber preforms will suffer from quality problems such as deformation, cracking, and poor dimensional accuracy, which will seriously affect the overall performance and service life of the high-speed rail fasteners.

[0005] As the high-speed rail industry places increasing demands on safety and reliability, an improved method and device are urgently needed to solve the above problems. Summary of the Invention

[0006] In response to the deficiencies of the prior art, the present invention provides a device and method for extruding rubber preforms for high-speed rail fasteners, which solves the problems of uneven mixing of rubber preforms and low energy utilization during the production process in the prior art.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rubber preform extrusion device and method for high-speed rail fasteners, comprising a base, a pretreatment component is provided on one side of the upper surface of the base, an extruder is fixedly connected to the upper surface of the base, a cooling component is provided on the outer sleeve of the output end of the extruder, a shaping component is provided on the other side of the upper surface of the base, the shaping component comprises a support table, a conveyor belt 1 is installed on the upper end of the inner part of the support table, a water tank 1, a water tank 2 and a water tank 3 are provided inside the support table, and the water tank 1, the water tank 2 and the water tank 3 are fixedly connected to the upper surface of the base, and the extruder is ... Directly below the conveyor belt 1, a plurality of nozzles are fixedly connected to the upper end of the support platform, and the plurality of nozzles are evenly distributed along both sides of the conveyor belt 1. A water pump 1 and a plurality of water pumps 2 are fixedly connected to the side surface of the support platform, the input end of the water pump 1 is connected to the output end of the cooling component, the output end of the water pump 1 is connected to the water tank 1, the input ends of the plurality of water pumps 2 are respectively connected to the water tank 1, the water tank 2 and the water tank 3, the output ends of the plurality of water pumps 2 are respectively connected to the plurality of nozzles, and a cutting component is provided on one side of the outer surface of the support platform.

[0008] Preferably, the pretreatment component consists of a rolling component and a refinement component, the rolling component includes a support frame, the support frame is fixedly connected to one side of the upper surface of the base, the lower end of the inner part of the support frame is fixedly connected to a motor 1, one side of the upper end of the support frame is rotatably connected to a driving gear and two driven gears, the driving gear and the two driven gears are engaged with each other, the output end of the motor 1 is connected to the driving gear through a belt, the top end of the support frame is rotatably connected to two rolling rollers 1, the two rolling rollers 1 are fixedly connected to the side surface of the driven gear, the top end of the support frame is slidably connected to a lower pressing roller, and the lower pressing roller is located directly above the rolling roller 1.

[0009] Preferably, the thinning assembly includes a thinning box, which is fixedly connected to one side of the upper surface of the base, and two motors 2 are fixedly connected to both sides of the thinning box. The output ends of the two motors 2 are fixedly connected to threaded rods, and the outer surfaces of the two threaded rods are threadedly connected to cutting knives. The input end of the thinning box is connected to the support frame through an inclined plate, and the side surface of the thinning box is slidably connected to a closed door.

[0010] Preferably, the cooling assembly includes a cooling jacket, which is installed on the outside of the output end of the extruder, and the outer surface of the cooling jacket is fixedly connected to a liquid pump, the output end of the liquid pump is communicated with the cooling jacket, the lower inner end of the extruder is fixedly connected to a water tank, the input end of the liquid pump is communicated with the water tank, and the input end of the water pump is communicated with the cooling jacket.

[0011] Preferably, the cutting component is composed of an air-drying component and a cutting component, the air-drying component includes a conveyor belt 2, the conveyor belt 2 is fixedly connected to the upper surface of the base, the input end of the conveyor belt 2 is connected to the output end of the conveyor belt 1, the air-drying component also includes a buffer box, the buffer box is fixedly connected to the upper surface of the base and is located outside the conveyor belt 2, the interior of the buffer box is fixedly connected with a heating pipe, the outer surface of the buffer box is fixedly connected with a fan and a water pump 3, the input end of the water pump 3 is connected to the water tank 1, the output end of the water pump 3 is connected to the heating pipe, the output end of the water pump 3 is connected to the water tank 2 through the heating pipe, the input end of the fan is connected to the outside world, the output end of the fan is connected to the buffer box, the upper surface of the buffer box is fixedly connected with a fan, the input end of the fan is connected to the buffer box, and the output end of the fan is connected to the outside world.

[0012] Preferably, the splitting assembly includes a telescopic frame, which is fixedly connected to the upper surface of the base, the input end of the telescopic frame is connected to the output end of the conveyor belt 2, the side surface of the telescopic frame is fixedly connected to motor 3, the output end of motor 3 is fixedly connected to a splitting knife, and the splitting knife is rotatably connected to the inside of the telescopic frame.

[0013] Preferably, an elevator is installed between the output end of the thinning box and the input end of the extruder, and the elevator is fixedly connected to the upper surface of the base.

[0014] Preferably, a fence is fixedly connected to the edge of the upper surface of the base.

[0015] Preferably, a water inlet is provided on the outer surface of the water storage tank three.

[0016] A method for extruding a rubber preform for a high-speed rail fastener, comprising:

[0017] S1, adjusting the gap of the roller assembly, adding rubber raw materials and additives, squeezing and mixing through the roller, and then finely dividing by the cutting knife and sending them to the extruder through the elevator;

[0018] S2, after the mixed raw materials are softened in the extruder, they are extruded in the form of sheet strips;

[0019] S3, using the cooling jacket high temperature water, heat exchange cooling water, and external low temperature water in sequence, through the nozzle to cool down the rubber strip three times to shape it;

[0020] S4. After the rubber strip is dried with hot air, it is cut into pieces according to the set length by a splitting knife.

[0021] The present invention provides a device and method for extruding rubber preforms for high-speed rail fasteners. It has the following beneficial effects:

[0022] 1. The present invention cooperates with the roller pressing component and the refinement component in the pretreatment component. Motor 1 drives the gear transmission to rotate the roller pressing roller to extrude the mixed raw materials. Motor 2 drives the cutting knife to refine the bulk raw materials into particles, thereby improving the mixing uniformity and refinement degree of the raw materials, facilitating subsequent extrusion and shaping, and ensuring the quality stability of the preformed parts.

[0023] 2. In the present invention, the high-temperature water initially cooled in the cooling jacket is sent to the first water storage tank via the first water pump as the water for the first cooling; the water cooled again by heat exchange after the first cooling is stored in the second water storage tank as the water for the second cooling; after the second cooling, the third water storage tank is connected to the external low-temperature water for the final cooling, thereby avoiding the internal stress of the rubber strip due to the sudden change in temperature difference, effectively preventing deformation and cracking, and improving the product dimensional accuracy and performance reliability.

[0024] 3. The present invention uses the heating tube in the buffer box and the fan to generate hot air to dry the rubber strips, and uses the fan to maintain air circulation to ensure the drying efficiency. After drying, the motor drives the cutting knife to cut according to the set length, realizing the standardized production of preforms, improving production efficiency while ensuring the uniformity of product specifications, and facilitating the connection of subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 is a side view of the present invention;

[0027] Figure 3 is a schematic diagram of the pre-treatment component of the present invention;

[0028] Figure 4 is a schematic diagram of the rolling assembly of the present invention;

[0029] Figure 5 Schematic diagram of the extruder in the present invention;

[0030] Figure 6 is a schematic diagram of the cooling assembly in the present invention;

[0031] Figure 7 is a schematic diagram of the air-drying component of the present invention;

[0032] Figure 8 Schematic diagram of water storage tank 1 in the present invention.

[0033] Among them, 1. Base; 2. Pretreatment component; 3. Extruder; 4. Cooling component; 5. Shaping component; 501. Support table; 502. Conveyor belt 1; 503. Water tank 1; 504. Water tank 2; 505. Water tank 3; 506. Nozzle; 507. Water pump 1; 508. Water pump 2; 6. Cutting component; 21. Rolling component; 22. Thinning component; 211. Support frame; 212. Motor 1; 213. Driving gear; 214. Driven gear; 215. Rolling roller 1; 216. Pressing Stick; 221, thinning box; 222, motor two; 223, threaded rod; 224, cutting knife; 225, inclined plate; 226, closed door; 401, cooling jacket; 402, liquid pump; 403, water tank; 61, air drying component; 62, cutting component; 611, conveyor belt two; 612, buffer box; 613, heating tube; 614, fan; 615, water pump three; 616, fan; 621, telescopic frame; 622, motor three; 623, cutting knife; 7, elevator; 8, fence; 9, water inlet. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Please see the attached Figure 1 -Attached Figure 8The embodiment of the present invention provides a rubber preform extrusion device and method for high-speed rail fasteners, including a base 1, a pretreatment component 2 is provided on one side of the upper surface of the base 1, an extruder 3 is fixedly connected to the upper surface of the base 1, a cooling component 4 is provided on the outer side of the output end of the extruder 3, and a shaping component 5 is provided on the other side of the upper surface of the base 1. The shaping component 5 includes a support platform 501, a conveyor belt 1 502 is installed on the upper end of the inner part of the support platform 501, and a water tank 1 503, a water tank 2 504 and a water tank 3 505 are provided inside the support platform 501. The water tank 1 503, the water tank 2 504 and the water tank 3 505 are located at the conveyor belt 1 502. Directly below, a plurality of nozzles 506 are fixedly connected to the upper end of the support platform 501, and the plurality of nozzles 506 are evenly distributed along both sides of the conveyor belt 1 502. A water pump 1 507 and a plurality of water pump 2 508 are fixedly connected to the side surface of the support platform 501. The input end of the water pump 1 507 is connected to the output end of the cooling component 4, and the output end of the water pump 1 507 is connected to the water tank 1 503. The input ends of the plurality of water pump 2 508 are respectively connected to the water tank 1 503, the water tank 2 504 and the water tank 3 505. The output ends of the plurality of water pump 2 508 are respectively connected to the plurality of nozzles 506. A cutting component 6 is provided on one side of the outer surface of the support platform 501.

[0036] Specifically, the base 1 is used to carry each component; the pretreatment component 2 mixes and refines the rubber raw materials and additives, wherein the rolling component 21 drives the gear transmission through the motor 212 to rotate the rolling roller to extrude and mix the raw materials and additives, and the refining component 22 drives the threaded rod 223 through the motor 222 to lower the cutting knife 224 to cut the mixed large blocks of raw materials into fine particles; the extruder 3 heats, softens and shapes the refined raw materials to output them in the form of sheet-like strips; the liquid pump 402 of the cooling component 4 sends the water in the water tank 403 into the cooling jacket 401 to preliminarily cool the high-temperature raw materials output by the extruder; the shaping component 5 is used to perform multi-stage cooling and shaping on the extruded rubber strips, and the support platform 501 carries the conveyor belt 502 and each water tank. The conveyor belt 502 transports the rubber strips, and the water tank 1 503 stores the high-temperature water output by the cooling component 4 as water for the first cooling, the water tank 2 504 stores the water cooled by heat exchange as water for the second cooling, the water tank 3 505 is connected to the external low-temperature water as water for the final cooling, the water pump 1 507 pumps the high-temperature water of the cooling component 4 into the water tank 1 503, and multiple water pumps 2 508 respectively send the water in each water tank into the nozzle 506, and the nozzle 506 evenly sprays water to cool the rubber strip; the cutting component 6 air-dries and cuts the rubber strip after cooling and shaping, wherein the conveyor belt 2 611 transports the rubber strip, the heating tube 613 in the buffer box 612 cooperates with the fan 614 to realize heat exchange, the fan 616 blows hot air to the rubber strip to dry it, and the motor 3 622 on the telescopic frame 621 drives the cutting knife 623 to cut the rubber strip into preformed parts of fixed length.

[0037] The pretreatment component 2 consists of a rolling component 21 and a refinement component 22. The rolling component 21 includes a support frame 211, which is fixedly connected to one side of the upper surface of the base 1. The lower end of the support frame 211 is fixedly connected to a motor 212. One side of the upper end of the support frame 211 is rotatably connected to a driving gear 213 and two driven gears 214. The driving gear 213 and the two driven gears 214 are engaged with each other. The output end of the motor 212 is connected to the driving gear 213 through a belt. The top of the support frame 211 is rotatably connected to two rolling rollers 215. The two rolling rollers 215 are fixedly connected to the side surface of the driven gear 214. The top of the support frame 211 is slidably connected to a lower pressing roller 216, which is located directly above the rolling roller 215.

[0038] Specifically, the roller assembly 21 in the pretreatment assembly 2 is used to mix rubber raw materials and additives, and the support frame 211 provides installation support for the roller assembly 21; the motor 1 212 drives the driving gear 213 to rotate through the belt, and the driving gear 213 is engaged with the driven gear 214 for transmission, driving the roller roller 1 215 to rotate, and the rubber raw materials and additives are extruded and mixed; the lower pressing roller 216 can slide to adjust the distance with the roller roller 1 215 to adapt to the extrusion requirements of raw materials of different thicknesses, and the raw materials are fully mixed by the relative rotation of the upper and lower rollers; the refining box 221 of the refining assembly 22 receives the mixed raw materials, and the motor 222 drives the threaded rod 223 to rotate, so that the cutting knife 224 moves up and down to cut large pieces of raw materials into fine particles, and the inclined plate 225 guides the mixed raw materials from the roller assembly 21 into the refining box 221, and the closed door 226 facilitates cleaning or maintenance of the interior of the refining box 221, and finally the refined raw materials are transported to the extruder 3 through the elevator 7.

[0039] The refinement assembly 22 includes a refinement box 221, which is fixedly connected to one side of the upper surface of the base 1. Two motors 222 are fixedly connected to both sides of the refinement box 221. The output ends of the two motors 222 are fixedly connected to threaded rods 223. The outer surfaces of the two threaded rods 223 are threadedly connected to cutting knives 224. The input end of the refinement box 221 is connected to the support frame 211 through an inclined plate 225. The side surface of the refinement box 221 is slidably connected to a closed door 226.

[0040] Specifically, the refinement box 221 is used to accommodate the mixed rubber raw materials and provide cutting space; the two motors 222 synchronously drive the threaded rod 223 to rotate, and the cutting knife 224 is moved up and down along the axis of the threaded rod 223 through threaded transmission to cut the large pieces of raw materials in the box; the inclined plate 225 guides the raw materials mixed by the rolling assembly 21 to the input end of the refinement box 221 to achieve a smooth transition of the raw materials; the cutting knife 224 refines the large pieces of raw materials into uniform fine particles through reciprocating motion, which is convenient for subsequent extrusion and shaping; the closed door 226 can be slid open or closed, and is used to unload the material after cutting is completed or to clean and maintain the inside of the refinement box 221 to ensure continuous and stable operation of the device.

[0041] The cooling assembly 4 includes a cooling jacket 401, which is installed on the outside of the output end of the extruder 3. The outer surface of the cooling jacket 401 is fixedly connected to a liquid pump 402, and the output end of the liquid pump 402 is connected to the cooling jacket 401. The lower end of the interior of the extruder 3 is fixedly connected to a water tank 403, and the input end of the liquid pump 402 is connected to the water tank 403. The input end of the water pump 507 is connected to the cooling jacket 401.

[0042] Specifically, the cooling jacket 401 is mounted on the outside of the output end of the extruder 3 to form an annular cooling channel; the liquid pump 402 draws cooling water from the water tank 403, pressurizes it and transports it to the cooling jacket 401, and absorbs the heat of the output end of the extruder 3 through the circulating flow of the cooling water, and performs preliminary cooling on the high-temperature rubber strip just extruded to prevent it from deformation due to excessive temperature; the high-temperature water after absorbing heat in the cooling jacket 401 is transported to the water storage tank 503 through a water pump 507 as the first cooling water for the shaping component 5, thereby realizing the recycling of cooling water, reducing energy consumption and ensuring continuous cooling effect.

[0043] The cutting component 6 is composed of an air-drying component 61 and a cutting component 62. The air-drying component 61 includes a conveyor belt 2 611, which is fixedly connected to the upper surface of the base 1. The input end of the conveyor belt 2 611 is connected to the output end of the conveyor belt 1 502. The air-drying component 61 also includes a buffer box 612, which is fixedly connected to the upper surface of the base 1 and is located outside the conveyor belt 2 611. The interior of the buffer box 612 is fixedly connected to a heating pipe 613, and the outer surface of the buffer box 612 is fixedly connected on both sides. The fan 614 and the water pump three 615, the input end of the water pump three 615 is connected to the water tank one 503, the output end of the water pump three 615 is connected to the heating pipe 613, the output end of the water pump three 615 is connected to the water tank two 504 through the heating pipe 613, the input end of the fan 614 is connected to the outside world, the output end of the fan 614 is connected to the buffer tank 612, the upper surface of the buffer tank 612 is fixedly connected with a fan 616, the input end of the fan 616 is connected to the buffer tank 612, and the output end of the fan 616 is connected to the outside world.

[0044] Specifically, conveyor belt 2 611 receives the cooled and shaped rubber strips transported by conveyor belt 1 502, and transports them to the subsequent process along the set path; the buffer box 612 is covered outside conveyor belt 2 611 to form an independent air-drying space; the heating pipe 613 is connected to the water source of water tank 1 503 through water pump 3 615, and generates heat by water flow heat exchange; the fan 614 blows outside air into the buffer box 612, which contacts the heating pipe 613 to form hot air, and evaporates and dries the moisture on the surface of the rubber strip; the fan 616 discharges the humid and hot air in the buffer box 612, maintains the air circulation in the box, and ensures the air-drying efficiency; the air-dried rubber strips are transported by conveyor belt 2 611 to the cutting assembly 62, and are cut into fixed lengths by the cutting knife 623 on the telescopic frame 621, realizing the standardized production of preforms.

[0045] The splitting assembly 62 includes a telescopic frame 621, which is fixedly connected to the upper surface of the base 1. The input end of the telescopic frame 621 is connected to the output end of the conveyor belt 2 611. The side surface of the telescopic frame 621 is fixedly connected to the motor 3 622. The output end of the motor 3 622 is fixedly connected to the splitting knife 623. The splitting knife 623 is rotatably connected to the inside of the telescopic frame 621.

[0046] Specifically, the telescopic frame 621 is used to support and position the motor three 622 and the splitting knife 623 to ensure a stable cutting process; the conveyor belt two 611 transports the air-dried rubber strip to the input end of the telescopic frame 621, and the motor three 622 drives the splitting knife 623 to rotate at high speed to cut the continuously transported rubber strip; the telescopic frame 621 can adjust the position or angle according to production needs, so that the splitting knife 623 can accurately act on the rubber strip, dividing it into single preforms according to the set length, realizing automatic fixed-length cutting, and ensuring uniform product specifications.

[0047] An elevator 7 is installed between the output end of the thinning box 221 and the input end of the extruder 3 , and the elevator 7 is fixedly connected to the upper surface of the base 1 .

[0048] Specifically, the elevator 7 is used to transport the mixed raw materials in the thinning box 221 to the extruder 3.

[0049] A fence 8 is fixedly connected to the edge of the upper surface of the base 1 .

[0050] Specifically, the fence 8 is used to protect the components of the device, prevent operators from accidentally touching the running parts, and prevent raw materials or finished products from sliding, thereby improving the safety and reliability of the equipment operation and providing a stable operating environment for the entire production process.

[0051] The outer surface of the water storage tank 3 505 is provided with a water inlet 9.

[0052] Specifically, the water inlet 9 is used to connect to an external low-temperature water source to provide cold water for the final cooling and shaping process of the shaping component 5. The low-temperature water is sprayed out from the nozzle 506 through the water pump 2 508 to cool the rubber strip in the final stage to ensure that it is completely shaped.

[0053] A method for extruding a rubber preform for a high-speed rail fastener, comprising:

[0054] S1, adjust the gap of the roller assembly 21, put the rubber raw materials and additives, squeeze and mix them through the roller 215, and then refine them through the cutting knife 224 and send them to the extruder 3 through the elevator 7;

[0055] S2, after the mixed raw materials are softened in the extruder 3, they are extruded in the form of sheet strips;

[0056] S3, using the high-temperature water of the cooling jacket 401, the cooling water of the heat exchange, and the external low-temperature water in sequence, through the nozzle 506 to cool down and shape the rubber strip three times;

[0057] S4. After the rubber strip is dried with hot air, it is cut into pieces according to a set length by the cutting knife 623.

[0058] Working principle: In actual use, first slide and adjust the distance between the lower pressing rod 216 and the two roller pressing rods 215 in the roller pressing assembly 21, and then manually put the rubber raw material wrapped with various additives into the roller pressing assembly 21, start the motor 212 to drive the driving gear 213 to rotate, and due to the meshing relationship, the driven gear 214 rotates and drives the roller pressing rod 215 to rotate, and the rubber raw material and various additives are then mixed under the extrusion of the roller pressing rod 215 and the lower pressing rod 216, and the extrusion is repeated until the rubber raw material and various additives are evenly mixed; after the mixing is completed, the mixed raw material is manually pushed into the refinement box 221 along the inclined plate 225, and then the motor 222 is started to drive the threaded rod 223 to rotate, so that the cutting knife 224 above the refinement box 221 falls to The large mixed raw materials in the refinement box 221 are cut into small mixed raw materials. After the cutting is completed, the closed door 226 is opened, and the small mixed raw materials are sent to the input end of the elevator 7 manually or with the help of external transfer equipment, and then sent to the extruder 3 by the elevator 7; the mixed raw materials are softened and shaped by the extruder 3, and finally flow out slowly from the output end of the extruder 3 in the form of sheet strips, and then transported by the conveyor belt 1 502 and the conveyor belt 2 611, and finally sent to the telescopic frame 621, and are divided into fixed lengths, and then flow to the next process; during the transportation process of the conveyor belt 1 502, the high-temperature flexible rubber strip sent from the output end of the extruder 3 will perform a cooling and shaping operation; in the cooling and shaping operation, the water pump 1 507 is first started to extruded The high-temperature water source in the cooling jacket 401 outside the machine 3 is pumped into the water tank 1 503 as the first cooling and shaping water, and then the water pump 2 508 outside the water tank 1 503 is started to send the water source into the nozzle 506, and the nozzle 506 sprays it evenly. At this time, the temperature difference between the water temperature of the first cooling and shaping water and the high-temperature flexible rubber strip is small, which can avoid the rapid hardening of the rubber surface and the inability to dissipate the internal heat in time, forming internal stress, causing deformation, cracking or uneven density problems, and then the first cooling and shaping water used for cooling flows back to the water tank 1 503 from the gap of the conveyor belt 1 502, and then the water pump 3 615 is started to pump the water source in the water tank 1 503 into the heating pipe 613 in the buffer tank 612, and at the same time, the water outside the buffer tank 612 The fan 614 draws in external air, which enters the buffer tank 612 and exchanges heat with the heating pipe 613. The cooled water is then sent to the water tank 2 504 via the water pump 3 615 as the water for the second cooling and shaping process. The water is pumped through the water pump 2 508 outside the water tank 2 504 and evenly sprayed out by the nozzle 506 to cool and shape the rubber strip for the second time. The rubber strip that has been cooled and shaped twice is then moved to the top of the water tank 3 505. The water tank 3 505 is connected to the external low-temperature water source via the water inlet 9. The water is then pumped into the nozzle 506 via the water pump 2 508 outside the water tank 3 505. The water is evenly sprayed out by the nozzle 506 to cool and shape the rubber strip for the final time. The rubber strip that has finally been cooled and shaped is then sent to the conveyor belt 2 611.During the conveyor belt 611, the wet rubber strips are air-dried. A fan 616 blows the hot air from the buffer box 612 onto the rubber strips to dry them. Finally, the cooled, shaped, and air-dried rubber strips are cut into fixed lengths on the telescopic rack 621 and then flow into the next stage of processing.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rubber preform extrusion device for high-speed rail fasteners, comprising a base (1), characterized in that: A pretreatment component (2) is provided on one side of the upper surface of the base (1), an extruder (3) is fixedly connected to the upper surface of the base (1), and a cooling component (4) is provided on the outside of the output end of the extruder (3). A shaping component (5) is provided on the other side of the upper surface of the base (1), and the shaping component (5) includes a support platform (501), a conveyor belt 1 (502) is installed on the upper end of the inner part of the support platform (501), a water tank 1 (503), a water tank 2 (504) and a water tank 3 (505) are provided inside the support platform (501), and the water tank 1 (503), the water tank 2 (504) and the water tank 3 (505) are located directly below the conveyor belt 1 (502). The upper end of the support platform (501) is fixedly connected to the A plurality of nozzles (506) are connected, and the plurality of nozzles (506) are evenly distributed along both sides of the conveyor belt 1 (502); a water pump 1 (507) and a plurality of water pump 2 (508) are fixedly connected to the side surface of the support platform (501); the input end of the water pump 1 (507) is connected to the output end of the cooling component (4); the output end of the water pump 1 (507) is connected to the water storage tank 1 (503); the input ends of the plurality of water pump 2 (508) are respectively connected to the water storage tank 1 (503), the water storage tank 2 (504) and the water storage tank 3 (505); the output ends of the plurality of water pump 2 (508) are respectively connected to the plurality of nozzles (506); and a cutting component (6) is provided on one side of the outer surface of the support platform (501).

2. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: The pretreatment component (2) is composed of a rolling component (21) and a thinning component (22). The rolling component (21) includes a support frame (211), the support frame (211) is fixedly connected to one side of the upper surface of the base (1), the lower end of the inner part of the support frame (211) is fixedly connected to a motor 1 (212), and the upper end of the support frame (211) is rotatably connected to a driving gear (213) and two driven gears (214). The driving gear (213) and the two driven gears (214) are connected in a rotating manner. The driven gears (214) are meshed with each other, the output end of the motor (212) is connected to the driving gear (213) through a belt, the top end of the support frame (211) is rotatably connected to two rollers (215), the two rollers (215) are fixedly connected to the side surfaces of the driven gear (214), the top end of the support frame (211) is slidably connected to a lower pressing rod (216), and the lower pressing rod (216) is located directly above the roller (215).

3. The rubber preform extrusion device for high-speed rail fasteners according to claim 2, characterized in that: The thinning assembly (22) comprises a thinning box (221), the thinning box (221) being fixedly connected to one side of the upper surface of the base (1), two motors (222) being fixedly connected to both sides of the thinning box (221), the output ends of the two motors (222) being fixedly connected to threaded rods (223), the outer surfaces of the two threaded rods (223) being threadedly connected to cutting knives (224), the input end of the thinning box (221) being connected to the support frame (211) via an inclined plate (225), and a closed door (226) being slidably connected to the side surface of the thinning box (221).

4. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: The cooling assembly (4) includes a cooling jacket (401), which is installed on the outside of the output end of the extruder (3); the outer surface of the cooling jacket (401) is fixedly connected to a liquid pump (402); the output end of the liquid pump (402) is connected to the cooling jacket (401); the lower end of the interior of the extruder (3) is fixedly connected to a water tank (403); the input end of the liquid pump (402) is connected to the water tank (403); and the input end of the water pump (507) is connected to the cooling jacket (401).

5. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: The cutting component (6) is composed of an air-drying component (61) and a cutting component (62). The air-drying component (61) includes a second conveyor belt (611), which is fixedly connected to the upper surface of the base (1). The input end of the second conveyor belt (611) is connected to the output end of the first conveyor belt (502). The air-drying component (61) also includes a buffer box (612), which is fixedly connected to the upper surface of the base (1) and is located outside the second conveyor belt (611). A heating pipe (613) is fixedly connected to the interior of the buffer box (612), and fans are fixedly connected to both sides of the outer surface of the buffer box (612). (614) and water pump three (615), the input end of the water pump three (615) is connected to the water storage tank one (503), the output end of the water pump three (615) is connected to the heating pipe (613), the output end of the water pump three (615) is connected to the water storage tank two (504) through the heating pipe (613), the input end of the fan (614) is connected to the outside world, the output end of the fan (614) is connected to the buffer tank (612), the upper surface of the buffer tank (612) is fixedly connected with a fan (616), the input end of the fan (616) is connected to the buffer tank (612), and the output end of the fan (616) is connected to the outside world.

6. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: The splitting assembly (62) includes a telescopic frame (621), the telescopic frame (621) is fixedly connected to the upper surface of the base (1), the input end of the telescopic frame (621) is connected to the output end of the conveyor belt 2 (611), the side surface of the telescopic frame (621) is fixedly connected to the motor 3 (622), the output end of the motor 3 (622) is fixedly connected to the splitting knife (623), and the splitting knife (623) is rotatably connected to the inside of the telescopic frame (621).

7. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: A hoist (7) is installed between the output end of the thinning box (221) and the input end of the extruder (3), and the hoist (7) is fixedly connected to the upper surface of the base (1).

8. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: A fence (8) is fixedly connected to the edge of the upper surface of the base (1).

9. The rubber preform extrusion device for high-speed rail fasteners according to claim 1, characterized in that: The outer surface of the water storage tank three (505) is provided with a water inlet (9).

10. A method for extruding a rubber preform for a high-speed rail fastener, applicable to the apparatus for extruding a rubber preform for a high-speed rail fastener as claimed in any one of claims 1 to 9, characterized in that: include: S1, adjusting the gap of the roller assembly (21), adding rubber raw materials and additives, extruding and mixing them through roller roller 1 (215), and then finely dividing them through a cutting knife (224) and sending them to the extruder (3) through an elevator (7); S2, after the mixed raw materials are softened in the extruder (3), they are extruded in the form of sheet-like strips; S3, using the high-temperature water of the cooling jacket (401), the heat exchange cooling water, and the external low-temperature water in sequence, through the nozzle (506) to cool down and shape the rubber strip three times; S4. After the rubber strip is dried with hot air, it is cut into pieces according to a set length by a cutting knife (623).

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