Low-temperature rubber stripping device and method for steel wire of steel wire rope conveying belt

Abstract

The invention discloses a low-temperature rubber stripping device and method for a steel wire of a steel wire rope conveying belt, and aims to realize efficient stripping of the steel wire rope of the conveying belt and rubber. The device comprises a guide rail, a movable platform, a belt cutting device, a cooling device, a rubber stripping device and a traction device, the movable platform is arranged on the guide rail in a sliding mode, and the belt cutting device, the cooling device and the rubber stripping device are sequentially fixed to the movable platform from front to back; the belt cutting device comprises a transverse U-shaped base, a cutter, a clamping device capable of being vertically adjusted and a guiding device. The cooling device comprises a dry ice storage box, a dry ice spraying box, a nozzle, a throttle valve and a pipeline; the rubber stripping device comprises an annular cutter and a rubber stripping cutter holder; the traction device comprises a gear motor, a coupler, a lead screw, a lead screw flange, a bearing and a bearing seat. According to the device and the method, the temperature of the rubber is reduced to the glass transition temperature to embrittle the rubber by virtue of a rubber low-temperature embrittlement principle, the rubber is completely stripped from the steel wire rope, continuous operation can be realized, the stripping time is greatly shortened, and the rubber stripping efficiency and quality are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of stripping the adhesive from steel wires in steel wire rope conveyor belts, and specifically to a low-temperature stripping device and method for steel wire rope conveyor belts. Background Technology

[0002] Steel wire rope conveyor belts are widely used in heavy-duty material transportation in mining, ports, metallurgy, and building materials industries due to their high strength, high tensile strength, and excellent wear resistance. However, with prolonged use, steel wire rope conveyor belts experience problems such as rubber aging, steel wire fatigue fracture, and surface wear. Therefore, it is essential to re-vulcanize and re-bond the conveyor belt. Before vulcanization, the rubber must be completely peeled off from the steel wire rope, and the speed and quality of peeling significantly affect the vulcanization process. Traditional mechanical peeling techniques mainly rely on physical actions such as blade cutting and roller tearing to achieve separation. However, rubber materials have high elasticity and toughness, and are prone to deformation at room temperature. This leads to problems such as rubber residue on the steel wire surface and excessive compression and deformation of the steel wire during peeling, resulting in low peeling efficiency and damage to the steel wire. Furthermore, traditional mechanical devices have poor adjustment flexibility for clamping and cutting mechanisms of steel wire rope conveyor belts of different thicknesses, requiring frequent replacement of adaptable parts, further reducing operational continuity.

[0003] This invention proposes a low-temperature stripping device and method for steel wire conveyor belts, which solves the problems of low efficiency, damage to steel wires, and incomplete stripping of adhesive by traditional mechanical stripping methods. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides a low-temperature stripping device and method for steel wire rope conveyor belts. The device specifically includes a guide rail, a moving platform, a belt cutting device, a cooling device, a stripping device, and a traction device. The moving platform is slidably mounted above the guide rail and can move along the length of the guide rail. The belt cutting device, cooling device, and stripping device are sequentially fixed above the moving platform from front to back. The traction device is located on both sides of the guide rail and is used to drive the moving platform to move along the guide rail.

[0005] Preferably, the tape cutting device includes a transverse U-shaped seat, a cutter, a clamping device, and a guiding device; the transverse U-shaped seat is transversely fixed to the moving platform; the cutter is detachably installed at the center of the transverse U-shaped seat, specifically by inserting it into the cutter hole of the transverse U-shaped seat; the clamping device includes a bottom fixed idler roller and a longitudinally adjustable idler roller, respectively located at the lower left and upper left of the transverse U-shaped seat, wherein the longitudinally adjustable idler roller can be adjusted vertically to adapt to conveyor belts of different thicknesses; the guiding device includes another bottom fixed idler roller, located at the lower right of the transverse U-shaped seat, used to guide and position the cut strip conveyor belt, smoothly guiding it into the subsequent cooling device.

[0006] Preferably, the cooling device is installed behind the cutting device and includes a dry ice storage box, a dry ice spraying box, nozzles, an insulated asbestos mesh, a throttling valve, and pipelines. The dry ice spraying box is located on a mobile platform and has a hollow structure with three inner linings and multiple nozzles evenly distributed on the upper and side walls. This hollow design can store dry ice, ensuring uniform spraying and improving the cooling effect. The dry ice storage box is connected to the spraying box through pipelines, and the pipelines are equipped with the throttling valve to precisely control the gas flow rate after the dry ice vaporizes. The outer wall of the spraying box is equipped with an insulated asbestos mesh, which can effectively reduce cold loss and ensure cooling efficiency.

[0007] Preferably, the rubber peeling device is installed behind the cooling device and includes a ring cutter and a rubber peeling knife holder. The ring cutter is a conical ring blade with a flange structure. Four blades are evenly distributed around its outer surface and connected to the rubber peeling knife holder through the flange. During operation, the steel wire can pass through the ring of the ring cutter and leave the rubber peeling device, while the brittle rubber is cut by the four blades and separated from the ring seam, thus achieving complete separation of the rubber from the steel wire.

[0008] Preferably, the traction device includes a geared motor, a coupling, a lead screw, a lead screw flange, a bearing, and a bearing housing. The geared motor is connected to the lead screw via the coupling. One end of the lead screw is supported by the bearing housing, with the bearing and bearing housing having an interference fit. The other end is connected to the moving platform via the lead screw flange. The lead screw, as the core transmission component, converts the rotational motion of the geared motor into the linear motion of the moving platform, driving the entire device to achieve stepping movement. Simultaneously, the moving platform includes four slide blocks and a cutting platform. The moving slide blocks are connected to the cutting platform via countersunk screws at the bottom, ensuring the overall structural stability of the moving platform and preventing it from easily shifting during movement.

[0009] Preferably, based on the above-mentioned device, the low-temperature stripping method for steel wire rope conveyor belts according to the present invention mainly includes the following steps: First, the conveyor belt is cut into strips by a cutting device; Second, a cooling device is used to spray the strip conveyor belt with cooling gas after the dry ice vaporization, so that the rubber temperature on the surface of the conveyor belt is reduced to the glass transition temperature Tg, achieving rapid embrittlement; Third, the embrittled rubber is completely peeled off from the steel wire rope by the ring cutter of the stripping device; During this process, the traction device drives the moving platform to move along the guide rail, thereby realizing the continuous operation of the entire stripping operation.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This device and method utilize the principle of low-temperature embrittlement to lower the temperature of the rubber to its glass transition temperature, thereby making it embrittled and achieving complete separation of the rubber from the steel wire rope. It can also operate continuously, significantly reducing the time required for separation and effectively improving the efficiency and quality of rubber separation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a low-temperature stripping device for steel wires in a steel wire rope conveyor belt, provided in an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of the slicing device provided in an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the cooling device provided in an embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the adhesive stripping device provided in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of a circumferential cutting blade provided in an embodiment of the present invention;

[0017] Figure 6 A schematic diagram of the traction device provided in the embodiments of the present invention. Figure 1 ;

[0018] Figure 7 A schematic diagram of the traction device provided in the embodiments of the present invention. Figure 2 .

[0019] In the diagram: 1-Guide rail; 2-Moving platform; 3-Cut strip device; 4-Cooling device; 5-Peeling device; 6-Traction device; 301-Transverse U-shaped seat; 302-Longitudinal adjusting rod; 303-Adjusting nut; 304-Longitudinal adjustable roller; 305-Bottom fixed roller one; 306-Cutter; 307-Bottom fixed roller two; 401-Storage box bolt; 402-Insulating asbestos mesh; 403-Dry ice storage box; 404-Throttle valve; 405-Pipeline; 406-Dry ice spraying box; 407-Nozzle; 501-Circular cutter; 502-Peeling knife holder; 601-Gear motor; 602-Coupling; 603-Lead screw; 201-Cut strip platform; 202-Slide; 606-Bearing seat. Detailed Implementation

[0020] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this invention, unless otherwise stated, the use of terms such as "upper," "lower," "left," "right," "inner," "outer," "lateral," and "longitudinal" to indicate orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or part referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0022] Please see Figures 1 to 7 As shown, the present invention provides a low-temperature stripping device for steel wire rope conveyor belts, including a guide rail 1, a moving platform 2, a belt cutting device 3, a cooling device 4, a stripping device 5, and a traction device 6.

[0023] A mobile platform 2 is mounted on the guide rail 1. The mobile platform includes a cutting platform 201 and a slide 202. The slide 202 is mounted above the guide rail 1. The cutting platform 201 is connected to the slide 202 by countersunk screws and mounted above the slide.

[0024] A tape cutting device 3 is installed on the mobile platform 2. The tape cutting device 3 is fixedly installed on the tape cutting platform 201 by screws. The tape cutting device 3 includes a transverse U-shaped seat 301, a cutter 306, a clamping device, and a guiding device. The clamping device includes a longitudinal adjusting rod 302, an adjusting nut 303, a longitudinally adjustable idler roller 304, and a bottom fixed idler roller 305. The guiding device includes a bottom fixed idler roller 307. The transverse U-shaped seat is horizontally installed on the tape cutting platform 201 by screws. The clamping device is installed on the left side of the transverse U-shaped seat 301, and the guiding device is installed on the right side of the transverse U-shaped seat 301. The cutter 306 is inserted into the central groove of the transverse U-shaped seat 301. The longitudinal adjusting rod 302, the adjusting nut 303, and the longitudinally adjustable idler roller 304 are installed on the upper left side wall of the transverse U-shaped seat 301. The vertical adjustment of the idler roller can be achieved by adjusting the nut 303 to adapt to conveyor belts of different thicknesses.

[0025] A cooling device 4 is installed after the cutting device 3. The cooling device 4 is fixedly installed on the cutting platform 201 by screws. The cooling device 4 includes a storage box bolt 401, an insulating asbestos mesh 402, a dry ice storage box 403, a throttle valve 404, a pipeline 405, a dry ice spraying box 406, and nozzles 407. The dry ice storage box 403 is provided with an insulating asbestos mesh 402 between the box body and the box cover and on the outside of the box wall to reduce cold loss and ensure cooling efficiency. The throttle valve 404 is installed in the pipeline 405 between the dry ice storage box 403 and the dry ice spraying box 406 to regulate the gas flow rate after the dry ice is vaporized. There are 27 nozzles 407 in total, which are evenly distributed on the upper wall and side wall of the spraying box.

[0026] A peeling device 5 is installed after the cooling device 4. The peeling device 5 is fixedly installed on the cutting platform 201 by screws. The peeling device 5 includes a ring cutter 501 and a peeling knife seat 502. The ring cutter 501 has a flange structure and is connected to the peeling knife seat 502 through the flange.

[0027] Traction devices 6 are installed on both sides of the guide rail 1. The traction device 6 includes a geared motor 601, a coupling 602, a lead screw 603, a lead screw flange 604, a bearing 605, and a bearing seat 606. The geared motor 601 and the bearing seat 606 are fixedly connected by screws and installed on both sides of the guide rail. The coupling 602 is located at the end of the geared motor 601 and is used to connect the geared motor 601 and the lead screw 603. The bearing 605 and the bearing seat 606 are interference-fitted. The lead screw flange 604 is connected to the cutting platform 201 through the flange to drive the moving platform 2 to step on the guide rail.

[0028] In this embodiment of the invention, the operator first lays the conveyor belt flat on the guide rail 1, aligning the cutter 306 of the belt cutting device 3 with the conveyor belt. Then, the traction device 6 is activated, with the reduction motor 601 providing traction force. Through the lead screw flange 604, the moving platform 2 moves stepwise along the guide rail 1 to perform the cutting operation. The operator can manually adjust the vertical movement of the longitudinally adjustable idler roller 304 by rotating the adjusting nut 303. This idler roller, in conjunction with the bottom fixed idler roller 305, can accommodate conveyor belts of different thicknesses. The side of the conveyor belt to be cut is placed on the fixed idler roller 307, and the reduction motor 601 is activated. The moving platform 2 then moves the belt cutting device 3 forward to cut the conveyor belt into strips. The strip conveyor belt then enters the cooling device 4. Workers need to add dry ice to the dry ice storage tank 403 beforehand. After the dry ice vaporizes, it flows from the pipe 405 into the dry ice spraying tank 406. The throttle valve 404 controls the gas flow rate. The vaporized dry ice is evenly sprayed onto the strip conveyor belt through the nozzle 407, lowering the temperature of the rubber on the steel wire rope to its glass transition temperature Tg, achieving rapid embrittlement. The embrittled conveyor belt then enters the rubber stripping device 5. Guided by the fixed idler roller 307, the conveyor belt aligns with the ring cutter 501. The ring cutter 501 completely peels the rubber from the steel wire rope, and the peeled rubber leaves the rubber stripping device 5 through the ring gap of the ring cutter. After peeling, workers collect and process the peeled rubber.

[0029] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and all such modifications and improvements should be covered within the scope of protection of the claims of the present invention.

Claims

1. A low-temperature stripping device for steel wires of a steel wire rope conveyor belt, characterized in that, The device includes a guide rail, a moving platform, a tape cutting device, a cooling device, a glue peeling device, and a traction device. The moving platform is slidably mounted above the guide rail and moves along its length. The tape cutting device, cooling device, and glue peeling device are fixedly mounted above the moving platform from front to back. The traction device is located on both sides of the guide rail and is used to drive the moving platform to move along the guide rail. The cutting device includes a transverse U-shaped seat, a cutter, a clamping device, and a guiding device; the transverse U-shaped seat is transversely fixed to the moving platform; the clamping device includes a bottom fixed roller and a longitudinal adjustable roller, which are respectively located at the lower left and upper left of the transverse U-shaped seat; the guiding device includes another bottom fixed roller, which is located at the lower right of the transverse U-shaped seat. The cooling device includes a dry ice storage box, a dry ice spraying box, nozzles, an insulating asbestos mesh, a throttle valve, and pipelines; the dry ice spraying box is located on a mobile platform and has multiple nozzles on its inner wall; the dry ice storage box is connected to the spraying box via pipelines, and the throttle valve is installed on the pipelines; the outer wall of the spraying box is provided with an insulating asbestos mesh. The adhesive peeling device includes a ring cutter and an adhesive peeling knife seat. The ring cutter has a conical ring blade structure with four blades evenly distributed on its outer circular surface and is fixed to the adhesive peeling knife seat by screws. The traction device includes a geared motor, a coupling, a lead screw, a lead screw flange, a bearing, and a bearing housing; the geared motor is connected to the lead screw through the coupling, one end of the lead screw is supported by the bearing housing, and the other end is connected to the moving platform through the lead screw flange.

2. The low-temperature stripping device for steel wires of a steel wire rope conveyor belt according to claim 1, characterized in that, The cutter is detachably mounted at the center of the transverse U-shaped base.

3. The low-temperature stripping device for steel wires of a steel wire rope conveyor belt according to claim 1, characterized in that, The longitudinally adjustable idler roller can be adjusted vertically to accommodate conveyor belts of different thicknesses.

4. The low-temperature stripping device for steel wires of a steel wire rope conveyor belt according to claim 1, characterized in that, The bottom fixed roller of the guiding device is used to guide and position the cut strip conveyor belt.

5. The low-temperature stripping device for steel wires of a steel wire rope conveyor belt according to claim 1, characterized in that, The dry ice spraying box has a hollow structure with three inner liner sides, and nozzles are distributed on its upper and side walls.

6. The low-temperature stripping device for steel wires of a steel wire rope conveyor belt according to claim 1, characterized in that, The circumferential cutting blade has four blades, which are evenly distributed along the circumference.

7. A method for low-temperature stripping of adhesive from steel wire rope conveyor belts, characterized in that, Using the apparatus as described in any one of claims 1-6, and comprising the following steps: The conveyor belt is cut into strips using a belt cutting device; The cooling gas produced by the vaporization of dry ice is sprayed onto the strip conveyor belt using a cooling device, which lowers the temperature of the rubber to the glass transition temperature Tg, thereby achieving rapid embrittlement. The brittle rubber is peeled off from the steel wire rope using a peeling device; The traction device is used to drive the mobile platform to move step by step along the guide rail, so as to achieve continuous operation.

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