Flip-flow vibrating screen

Abstract

The invention relates to the technical field of flip-flow screens, in particular to a flip-flow vibrating screen which comprises a fixed supporting frame, a main vibrating screen frame is arranged above the fixed supporting frame, a floating screen frame is arranged in the main vibrating screen frame, and a plurality of elastic polyurethane screen plates are installed on the surface of the floating screen frame. A plurality of shearing springs are installed between the main vibrating screen frame and the fixed supporting frame, the multiple shearing springs are designed between the main vibrating screen frame and the fixed supporting frame in an array mode, and a material penetrating screen is installed in the main vibrating screen frame and located below the floating screen frame; after entering the screen surface of the elastic polyurethane screen plate, wet sticky materials are quickly dispersed and layered under high-frequency relaxation movement, fine particles penetrate through screen holes under acceleration, coarse particles move forwards along the screen surface of the elastic polyurethane screen plate, and the screen holes in the surface of the elastic polyurethane screen plate deform and can be combined with the materials in a throwing mode under periodic changes of the elastic polyurethane screen plate. And adhesion and blockage are effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flip-flop screen, in particular to a flip-flop vibrating screen. BACKGROUND

[0002] At present, the flip-flop screen is a screening machine for throwing materials by the relaxation and tension movement of the elastic screen surface installed on the inclined screen box, and is used for screening fine, sticky, wet and other difficult-to-screen materials.

[0003] The prior art also proposes some solutions, such as a Chinese patent with the publication number CN220361518U discloses a flip-flop screen, which belongs to the technical field of material screening device, and comprises a flip-flop screen body, the upper end of the material inlet of the flip-flop screen body is provided with a flow guide bin, the flow guide bin and the screen surface of the flip-flop screen body are arranged at an obtuse angle, a plurality of flow distribution blocks are fixedly connected to the flow guide bin, the number of the flow distribution blocks gradually increases from the side away from the flip-flop screen body to the side close to the flip-flop screen body, and the plurality of flow distribution blocks are arranged in a conical shape on the flow guide bin. The application can improve the filtering effect of the flip-flop screen on materials.

[0004] Although the above technical solution improves the filtering effect of the flip-flop screen on materials, there are still other problems in specific use, such as when screening materials, if there are some materials with high humidity, the materials with high humidity often adhere to the screen holes, affecting the normal screening of the materials.

[0005] Therefore, the present application provides a flip-flop vibrating screen. SUMMARY

[0006] In order to solve the above technical problems, the present application provides a flip-flop vibrating screen, which comprises a fixed support frame, a main vibrating screen frame is arranged above the fixed support frame, a floating screen frame is arranged in the main vibrating screen frame, a plurality of elastic polyurethane screen plates are arranged on the surface of the floating screen frame, a plurality of shear springs are arranged between the main vibrating screen frame and the fixed support frame in an array, a material permeable screen is arranged in the main vibrating screen frame and below the floating screen frame, and the elastic polyurethane screen plates can be deformed on the surface of the floating screen frame. After the wet and sticky materials enter the screen surface of the elastic polyurethane screen plates, they are quickly dispersed and layered under high-frequency relaxation movement, fine particles penetrate the screen holes under acceleration, and coarse particles move forward along the screen surface of the elastic polyurethane screen plates, and the screen holes on the surface of the elastic polyurethane screen plates are deformed under the periodic change of the elastic polyurethane screen plates, which can be combined with the throwing of materials to effectively prevent adhesion and blockage, and the screen mesh is beneficial to the screening of fine particles when expanding, and the adhesion of materials is removed when shrinking, achieving the function of self-cleaning. Therefore, the flip-flop vibrating screen is convenient for screening operations of difficult-to-screen materials with medium and fine particle size, high viscosity and moisture.

[0007] In one embodiment of the present application, the side wall of the fixed support frame is fixedly connected with a connecting support, a horizontal shaft one is rotatably arranged above the connecting support, the end of the horizontal shaft one is connected with the output end of a motor, a plurality of convex rods one are fixedly installed on the outer circumferential surface of the horizontal shaft one, the convex rods one are convex towards different directions, a stress plate is installed above the main vibrating screen frame, and the convex end of the convex rod one contacts the stress plate during rotation.

[0008] In one embodiment of the present application, a rotating shaft is rotatably installed in the main vibrating screen frame, a convex gear is fixedly installed on the outer circumferential surface of the rotating shaft, the end of the rotating shaft is connected with the output end of a motor, the convex part of the convex gear contacts the frame of the floating screen frame during rotation of the rotating shaft, an assembly groove is formed in the side wall of the main vibrating screen frame, the side wall of the floating screen frame is installed in the assembly groove, and vibrating springs are installed on the upper and lower sides of the side wall of the floating screen frame.

[0009] In one embodiment of the present application, the floating screen frame comprises a fixed plate and a sliding plate, the fixed plate is arranged on the groove wall of the assembly groove, and the side wall of the vibrating spring is connected with the fixed plate, the sliding plate is slidably arranged on the side wall of the fixed plate, the elastic polyurethane screen plate is installed on the side wall of the sliding plate, and the sliding plate can slide left and right in the fixed plate; during operation, the floating screen frame vibrates under the action of the vibrating springs on the upper and lower sides, the floating screen frame comprises the fixed plate and the sliding plate, and the sliding plate can slide left and right in the fixed plate, so that the sliding plate pulls the elastic polyurethane screen plate, the screen holes on the surface of the elastic polyurethane screen plate are deformed, and the screening effect of the material is improved.

[0010] In one embodiment of the present application, the side wall of the main vibrating screen frame is installed with a fitting plate, the lower end surface of the sliding plate is installed with an inclined plate, and the inclined plate of the lower end surface of the sliding plate contacts the end of the fitting plate when the floating screen frame drives the sliding plate and the fixed plate to move downward; during operation, the convex part of the convex gear contacts the frame of the floating screen frame during rotation, so that the floating screen frame is pressed and squeezes the vibrating spring of the side wall, that is, the floating screen frame drives the sliding plate and the fixed plate to move downward, then the inclined plate of the lower end surface of the sliding plate contacts the end of the fitting plate, so that the end of the fitting plate presses the inclined surface of the inclined plate, and since the sliding plate slides in the fixed plate, the sliding plate pulls the elastic polyurethane screen plate, so that the elastic polyurethane screen plate realizes the function of deforming the screen holes, and thus can screen some wet and sticky, fine-grained materials.

[0011] In one embodiment of the present application, a sliding groove matched with the sliding plate is formed in the fixed plate, the sliding plate is slidably arranged in the sliding groove, and a tension spring is fixedly connected with the groove wall of the sliding groove, and the side wall of the sliding plate is connected with the groove wall away from the sliding groove.

[0012] In one embodiment of the present application, the side of the fixed support frame is provided with a recycling station, the side wall of the fixed support frame is slidingly provided with a support plate one, a material containing seat is installed above the support plate one, the material containing seat is used for collecting the screened material, the support plate one can move inside the fixed support frame and move the collected material containing seat to the recycling station; during operation, the screened material will slide along the inclined surface of the floating sieve frame to the inside of the material containing seat, when the inside of the material containing seat stores a certain amount of material, the controller controls the movement of the support plate one, so that the support plate one moves to one side of the recycling station, and then the material in the inside of the material containing seat is conveniently taken out.

[0013] In one embodiment of the present application, the upper end face of the support plate one is provided with a support spring around, the upper end face of the support spring is provided with a support plate two, the material containing seat is placed on the upper end face of the support plate two, the lower end face of the support plate two is provided with a contact one, the upper end face of the support plate one is provided with a contact two, the contact one and the contact two are designed on the same vertical plane; during operation, in the initial state, the contact one and the contact two are not in contact, as the material in the inside of the material containing seat gradually increases, the material containing seat will drive the support plate two to press down the support spring at the lower end face, and drive the contact one to move down, when the contact one and the contact two are in contact, the contact two will transmit a contact signal to the controller, the controller will control the movement of the support plate one, so that the support plate one will drive the movement of the material containing seat, so as to facilitate the collection and use of the screened material.

[0014] In one embodiment of the present application, the bottom of the fixed support frame is provided with a reciprocating air cylinder near one side of the support plate one, the telescopic end of the reciprocating air cylinder is connected with the side wall of the support plate one, and a groove matched with the support plate one is formed in the inside of the fixed support frame; during operation, when the contact one and the contact two are in contact, and the contact two transmits a contact signal to the controller, the controller will control the movement of the telescopic end of the reciprocating air cylinder, the telescopic end of the reciprocating air cylinder drives the movement of the support plate one, and the support plate one drives the movement of the material containing seat.

[0015] In one embodiment of the present application, the bottom of the fixed support frame is slidingly provided with a baffle, and the upper side of the baffle is connected through an electric telescopic column.

[0016] The above technical scheme of the present application has the following advantages compared with the prior art: The relaxation vibration screen provided by the application is convenient for screening of difficult materials with medium and fine granularity, high viscosity and moisture, etc.

[0017] The relaxation vibration screen provided by the application is convenient for screening of difficult materials with medium and fine granularity, high viscosity and moisture, etc. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the content of the application more easily and clearly understood, the application will be further described in detail below according to specific embodiments of the application and in combination with the drawings.

[0019] Figure 1 is a three-dimensional structure schematic diagram of the application; Figure 2 is a main vibration screen frame structure schematic diagram of the application; Figure 3 is a floating screen frame structure schematic diagram of the application; Figure 4 is an elastic polyurethane screen plate structure schematic diagram of the application; Figure 5 is a stretching spring structure schematic diagram of the application; Figure 6 is a sliding plate structure schematic diagram of the application; Figure 7 is a support plate two structure schematic diagram of the application; Figure 8 is a shearing spring structure schematic diagram of the application.

[0020] The description of the drawings is as follows: 1, fixed support; 2, main vibrating screen frame; 201, elastic polyurethane screen plate; 202, vibrating spring; 203, assembly groove; 3, floating screen frame; 4, material permeable screen; 5, shear spring; 6, connecting bracket; 601, horizontal shaft one; 7, convex rod one; 8, stress plate; 9, rotating shaft; 901, convex heart wheel; 10, fixed plate; 11, sliding plate; 111, inclined plate; 112, tension spring; 12, fitting plate; 13, support plate one; 14, material containing seat; 15, supporting spring; 16, support plate two; 17, contact one; 18, contact two; 19, reciprocating air cylinder; 20, baffle. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it, but the embodiments are not as a limitation on the present application.

[0022] Referring to Figures 1 to 4 As shown in the drawings, the elastic vibration screen described in the embodiment of the present application comprises a fixed support 1, a main vibrating screen frame 2 is arranged above the fixed support 1, a floating screen frame 3 is arranged inside the main vibrating screen frame 2, a plurality of elastic polyurethane screen plates 201 are mounted on the surface of the floating screen frame 3, a plurality of shear springs 5 are mounted between the main vibrating screen frame 2 and the fixed support 1, the plurality of shear springs 5 are designed in an array between the main vibrating screen frame 2 and the fixed support 1, a material permeable screen 4 is mounted inside the main vibrating screen frame 2 and below the floating screen frame 3, and the elastic polyurethane screen plate 201 can be deformed on the surface of the floating screen frame 3.

[0023] In operation, the material to be screened is fed from the inlet end of the main vibrating screen frame 2, then the main vibrating screen frame 2 is driven to produce linear or circular vibration by controlling the eccentric block exciter, the frequency is usually 700-1000 times / minute, and at the same time, the floating screen frame 3 is controlled to vibrate, so that the floating screen frame 3 produces additional vibration in the near resonance state, the amplitude can reach 12-20 mm, and the phase difference between the main vibrating screen frame 2 and the floating screen frame 3 will make the elastic polyurethane screen plate 201 produce periodic changes, and drive the screen mesh to repeatedly stretch and shrink, that is, to make elastic vibration; After the wet sticky material enters the screen surface of the elastic polyurethane screen plate 201, it is rapidly dispersed and layered under high-frequency elastic vibration, fine particles penetrate the screen hole under acceleration, and coarse particles move forward along the screen surface of the elastic polyurethane screen plate 201, and under the periodic changes of the elastic polyurethane screen plate 201, the screen holes on its surface will be deformed, which can effectively prevent adhesion and blockage by combining with the thrown material, and the screen mesh is beneficial to the screening of fine particles when it expands, and the adhesion of the material is squeezed out when it shrinks, achieving the function of self-cleaning; in this way, the elastic vibration screen is convenient for application in screening operations of difficult materials such as medium-fine particle size, high viscosity and moisture.

[0024] The side wall of the fixed support frame 1 is fixedly connected with a connecting support 6, a horizontal shaft one 601 is rotatably arranged above the connecting support 6, the end of the horizontal shaft one 601 is connected with the motor output end, a plurality of convex rods one 7 are fixedly installed on the outer circumferential surface of the horizontal shaft one 601, the convex rods one 7 are not oriented in the same direction, a stress plate 8 is installed above the main vibrating screen frame 2, and the convex end of the convex rod one 7 in the rotating process is in contact with the stress plate 8; When the main vibrating screen frame 2 needs to be controlled to vibrate, the motor is controlled to drive the horizontal shaft one 601 to rotate, the horizontal shaft one 601 drives the plurality of convex rods one 7 on the outer circumferential surface to rotate, the convex end of the convex rod one 7 in the rotating process is in contact with the end surface of the stress plate 8, so that the stress plate 8 is pressed to move downward, the stress plate 8 drives the main vibrating screen frame 2 to move downward and compresses the shear spring 5 at the lower end surface, when the convex end of the convex rod one 7 is separated from the stress plate 8, the main vibrating screen frame 2 is restored and vibrated under the elastic force of the shear spring 5, because a plurality of convex rods one 7 are designed and the convex rods one 7 are not oriented in the same direction, the main vibrating screen frame 2 is linearly vibrated under the extrusion of the convex rod one 7 at different positions, so that the screening effect of the material is improved.

[0025] A rotating shaft 9 is rotatably installed in the main vibrating screen frame 2, a convex gear 901 is fixedly installed on the outer circumferential surface of the rotating shaft 9, the end of the rotating shaft 9 is connected with the motor output end, the convex gear 901 is in contact with the frame of the floating screen frame 3 in the process of driving the convex gear 901 to rotate, an assembly groove 203 is formed in the side wall of the main vibrating screen frame 2, the side wall of the floating screen frame 3 is installed in the assembly groove 203, and vibration springs 202 are installed on the upper and lower sides of the side wall of the floating screen frame 3. When the main vibrating screen frame 2 is linearly vibrated under the elastic force of the shear spring 5, the motor drives the rotating shaft 9 to rotate, the rotating shaft 9 drives the convex gear 901 to rotate, the convex gear 901 is in contact with the frame of the floating screen frame 3 in the rotating process, so that the floating screen frame 3 is pressed and extrudes the vibration springs 202 on the side wall, when the convex gear 901 is separated from the frame of the floating screen frame 3, the floating screen frame 3 is vibrated to a certain degree under the action of the vibration springs 202 on the upper and lower sides, so that a phase difference is generated between the floating screen frame 3 and the main vibrating screen frame 2, the elastic polyurethane screen plate 201 is periodically changed, the screen mesh is repeatedly stretched and contracted, and the material screening function is realized.

[0026] The floating sieve frame 3 comprises a fixed plate 10 and a sliding plate 11, the fixed plate 10 is arranged on the groove wall of the assembling groove 203, and the vibration spring 202 is connected with the side wall of the fixed plate 10, the sliding plate 11 is slidingly arranged on the side wall of the fixed plate 10, the elastic polyurethane sieve plate 201 is installed on the side wall of the sliding plate 11, and the sliding plate 11 can slide left and right in the fixed plate 10; In work, under the action of the vibration springs 202 on the upper and lower sides, the floating sieve frame 3 will vibrate, since the floating sieve frame 3 comprises the fixed plate 10 and the sliding plate 11, and the sliding plate 11 can slide left and right in the fixed plate 10, therefore the sliding plate 11 will pull the elastic polyurethane sieve plate 201, so that the sieve holes on the surface of the elastic polyurethane sieve plate 201 are deformed, and the screening effect of the material is improved.

[0027] The side wall of the main vibrating sieve frame 2 is provided with a matching plate 12, the lower end surface of the sliding plate 11 is provided with an inclined plate 111, and when the floating sieve frame 3 drives the sliding plate 11 and the fixed plate 10 to move downward, the inclined plate 111 on the lower end surface of the sliding plate 11 will contact the end of the matching plate 12; In work, the convex core 901 will contact the frame of the floating sieve frame 3 at the convex position in the rotating process, so that the floating sieve frame 3 is pressed and extrudes the vibration spring 202 on the side wall, that is, the floating sieve frame 3 drives the sliding plate 11 and the fixed plate 10 to move downward, then the inclined plate 111 on the lower end surface of the sliding plate 11 will contact the end of the matching plate 12, so that the end of the matching plate 12 extrudes the inclined surface of the inclined plate 111, since the sliding plate 11 slides in the fixed plate 10, therefore the sliding plate 11 will pull the elastic polyurethane sieve plate 201, so that the elastic polyurethane sieve plate 201 realizes the function that the sieve holes are deformed, and thus some wet sticky and fine-grained materials can be screened.

[0028] The inside of the fixed plate 10 is provided with a sliding groove matched with the sliding plate 11, the sliding plate 11 is slidingly arranged in the sliding groove, the groove wall of the sliding groove is fixedly connected with a tension spring 112, the tension spring 112 is connected with the side wall of the sliding plate 11 away from the groove wall of the sliding groove, the inclined surface of the inclined plate 111 is provided with a limiting groove, the end of the matching plate 12 is arranged in the limiting groove of the inclined surface of the inclined plate 111, and the shape of the end of the matching plate 12 is matched with the shape of the limiting groove; When working, the inclined plate 111 at the lower end surface of the sliding plate 11 will be in contact with the end of the fitting plate 12, so that the end of the fitting plate 12 extrudes the inclined surface of the inclined plate 111, at this time, under the pressure of the inclined plate 111, the inclined plate 111 will drive the sliding plate 11 to slide inside the fixed plate 10, and extrude the tension spring 112 inside the fixed plate 10, that is, the sliding plate 11 designed in the same horizontal plane will relatively move away, that is, the sliding plate 11 will pull the elastic polyurethane sieve plate 201 to deform, when the end of the fitting plate 12 is separated from the inclined plate 111, the elastic polyurethane sieve plate 201 will recover from the tension state under the elastic recovery of the tension spring 112, so that the surface of the elastic polyurethane sieve plate 201 will deform under the reciprocating deformation state, which can be combined with the throwing of the material, effectively preventing adhesion and blockage, and the sieve net is beneficial to the screening of fine particles when expanding, and extruding the adhered objects to make them fall off when shrinking, achieving the function of self-cleaning.

[0029] Referring to Figures 2 to 7 As shown, the fixed support frame 1 is provided with a recovery station on the side, and the side wall of the fixed support frame 1 is slidably provided with a support plate one 13, and a material containing seat 14 is installed above the support plate one 13, which is used to collect the screened material, and the support plate one 13 can move inside the fixed support frame 1 and move the collected material containing seat 14 to the recovery station; When working, the screened material will slide along the inclined surface of the floating sieve frame 3 to the inside of the material containing seat 14, and when the material containing seat 14 stores a certain amount of material, the controller will control the support plate one 13 to move, so that the support plate one 13 moves to one side of the recovery station, and then the material in the material containing seat 14 is taken out.

[0030] The upper end surface of the support plate one 13 is provided with a supporting spring 15 around, the upper end surface of the supporting spring 15 is provided with a support plate two 16, the material containing seat 14 is placed on the upper end surface of the support plate two 16, the lower end surface of the support plate two 16 is provided with a contact one 17, the upper end surface of the support plate one 13 is provided with a contact two 18, and the contact one 17 and the contact two 18 are designed on the same vertical surface; When working, in the initial state, the contact one 17 and the contact two 18 are not in contact, as the material in the material containing seat 14 gradually increases, the material containing seat 14 will drive the support plate two 16 to press down the supporting spring 15 at its lower end surface, and drive the contact one 17 to move downward, when the contact one 17 and the contact two 18 are in contact, the contact two 18 will transmit the contact signal to the controller, and the controller will control the support plate one 13 to move, so that the support plate one 13 will drive the material containing seat 14 to move, so as to facilitate the collection and use of the screened material.

[0031] A reciprocating cylinder 19 is installed on the side of the bottom of the fixed support frame 1 close to the support plate 13, and the telescopic end of the reciprocating cylinder 19 is connected to the side wall of the support plate 13. The interior of the fixed support frame 1 is provided with a groove adapted to the support plate 13; during operation, when the contact 17 and the contact 2 18 are in contact, and the contact 2 18 transmits the contact signal to the controller, the controller will control the telescopic end of the reciprocating cylinder 19 to move, and the telescopic end of the reciprocating cylinder 19 will drive the support plate 13 to move, and the support plate 13 will drive the material holding base 14 to complete the above movement.

[0032] The bottom of the main vibrating screen frame 2 is slidably installed with a baffle 20, and the top of the baffle 20 is connected by an electric telescopic column; during operation, when contact 17 and contact 2 18 are in contact, contact 2 18 transmits a contact signal to the controller, and at this time the controller will first control the baffle 20 to move down, and the baffle 20 will first block the bottom outlet end of the main vibrating screen frame 2, so that the screened material will not fall into the material holding seat 14 during the recovery process; thereafter, the telescopic end of the reciprocating cylinder 19 drives the support plate 13 to move, so that the material holding seat 14 moves to a side away from the bottom outlet end of the main vibrating screen frame 2. After the material inside the material holding seat 14 is taken out, the telescopic end of the reciprocating cylinder 19 is controlled to drive the support plate 13 and the material holding seat 14 to move to the bottom outlet end of the main vibrating screen frame 2 again, so that it is convenient to continue to collect the screened material in the future, and when the material holding seat 14 returns to its initial position again, the baffle 20 is controlled to move up, and the screened material will fall into the material holding seat 14 again.

[0033] During operation: the material to be screened is introduced into the inlet end of the main vibrating screen frame 2, and then the main vibrating screen frame 2 is driven to generate linear or circular vibration by controlling the eccentric block exciter, and the frequency is usually 700 to 1000 times per minute, and at the same time, the floating screen frame 3 is controlled to vibrate, so that the floating screen frame 3 generates additional vibration in a near-resonance state, with an amplitude of up to 12 to 20 mm. The phase difference between the main vibrating screen frame 2 and the floating screen frame 3 will cause the elastic polyurethane screen plate 201 to produce periodic changes, and drive the screen to repeatedly stretch and contract, that is, to make a relaxation movement; After the wet sticky material enters the screen surface of the elastic polyurethane screen plate 201, it is quickly dispersed and stratified under the high-frequency relaxation motion. Fine particles penetrate the screen holes due to acceleration, and coarse particles move along the screen surface of the elastic polyurethane screen plate 201. In addition, as the elastic polyurethane screen plate 201 produces periodic changes, the screen holes on its surface will deform, which can be combined with the throwing of materials to effectively prevent adhesion and blockage. In addition, the screen is conducive to the penetration of fine particles when expanding, and squeezes the adhesions to make them fall off when contracting, achieving the function of self-cleaning. This makes it convenient for this relaxation vibrating screen to be used for screening operations of difficult-to-screen materials such as medium-fine particles, high viscosity and moisture.

[0034] When it is necessary to control the vibration of the main vibrating screen frame 2, the motor is controlled to drive the horizontal shaft 1 to rotate, and the horizontal shaft 1 drives the plurality of convex rods 7 on the outer periphery to rotate. The convex ends of the plurality of convex rods 7 in the rotating process are in contact with the end face of the stress plate 8, so that the stress plate 8 is pressed and moves downward, and the stress plate 8 drives the main vibrating screen frame 2 to move downward and compress the shear spring 5 at the lower end face. When the convex ends of the convex rods 7 are separated from the stress plate 8, the shear spring 5 will drive the main vibrating screen frame 2 to recover and vibrate under the elastic force of the shear spring 5. Since a plurality of convex rods 7 are designed, and the convex directions of the plurality of convex rods 7 are not the same, the main vibrating screen frame 2 will produce linear vibration under the extrusion of the convex rods 7 at different positions, thereby improving the screening effect of the material. During the linear vibration of the main vibrating screen frame 2 under the elastic force of the shear spring 5, the motor drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the convex heart wheel 901 to rotate. The convex heart wheel 901 in the rotating process is in contact with the frame of the floating screen frame 3 at the convex position, so that the floating screen frame 3 is pressed and extrudes the vibration spring 202 of the side wall. When the convex position of the convex heart wheel 901 is separated from the frame of the floating screen frame 3, the floating screen frame 3 will vibrate to a certain extent under the action of the vibration spring 202 on the upper and lower sides. Thus, under the reciprocating vibration of the floating screen frame 3 and the main vibrating screen frame 2, a phase difference is generated between the two, and the elastic polyurethane sieve plate 201 is periodically changed, and the screen mesh is repeatedly stretched and contracted, thereby realizing the material screening function. When the floating screen frame 3 vibrates under the action of the vibration spring 202 on the upper and lower sides, since the floating screen frame 3 includes the fixed plate 10 and the sliding plate 11, and the sliding plate 11 can slide left and right in the fixed plate 10, the sliding plate 11 will pull the elastic polyurethane sieve plate 201, so that the sieve holes on the surface of the elastic polyurethane sieve plate 201 are deformed, thereby improving the screening effect of the material. The convex heart wheel 901 in the rotating process is in contact with the frame of the floating screen frame 3 at the convex position, so that the floating screen frame 3 is pressed and extrudes the vibration spring 202 of the side wall. That is, the floating screen frame 3 drives the sliding plate 11 and the fixed plate 10 to move downward, and then the inclined plate 111 at the lower end face of the sliding plate 11 is in contact with the end portion of the fitting plate 12, so that the end portion of the fitting plate 12 extrudes the inclined surface of the inclined plate 111. Since the sliding plate 11 slides in the fixed plate 10, the sliding plate 11 will pull the elastic polyurethane sieve plate 201, so that the elastic polyurethane sieve plate 201 realizes the function of deforming the sieve holes as described above, thereby being able to handle the screening of some wet sticky and fine-grained materials. When the inclined plate 111 at the lower end surface of the sliding plate 11 contacts the end of the fitting plate 12, the end of the fitting plate 12 is pressed against the inclined surface of the inclined plate 111, at this time, under the pressure of the inclined plate 111, it will drive the sliding plate 11 to slide inside the fixed plate 10, and press the tension spring 112 inside the fixed plate 10, that is, the sliding plate 11 designed in the same horizontal plane will relatively move away, that is, the sliding plate 11 will pull the elastic polyurethane sieve plate 201 to deform, when the end of the fitting plate 12 is separated from the inclined plate 111, under the elastic recovery of the tension spring 112, the elastic polyurethane sieve plate 201 will recover from the tension state, so that in the reciprocating deformation state of the elastic polyurethane sieve plate 201, the sieve holes on its surface will deform, which can be combined with the throwing of the material, effectively preventing adhesion and blockage, and the sieve net is beneficial to the screening of fine particles when expanding, and the adhesion of the material is squeezed out when shrinking, achieving the function of self-cleaning; The screened material will slide along the inclined surface of the floating sieve frame 3 to the inside of the material holding seat 14, when the material holding seat 14 stores a certain amount of material, the controller will control the support plate one 13 to move, so that the support plate one 13 moves to one side of the recovery position, then the material in the material holding seat 14 is taken out; In the initial state, the contact one 17 and the contact two 18 are not in contact, as the material in the material holding seat 14 gradually increases, the material holding seat 14 will drive the support spring 15 at the lower end surface to be pressed down, and the contact one 17 will be driven to move down, when the contact one 17 and the contact two 18 are in contact, the contact two 18 will transmit the contact signal to the controller, the controller will control the support plate one 13 to move, so that the support plate one 13 will drive the material holding seat 14 to move, so as to facilitate the collection and use of the screened material; When the contact one 17 and the contact two 18 are in contact, and the contact two 18 transmits the contact signal to the controller, the controller will control the extension and retraction end of the reciprocating cylinder 19 to move, the extension and retraction end of the reciprocating cylinder 19 drives the support plate one 13 to move, the support plate one 13 drives the material holding seat 14 to complete the above movement; When the contact one 17 and the contact two 18 are in contact, the contact two 18 transmits the contact signal to the controller, at this time the controller will first control the baffle 20 to move down, the baffle 20 will first shield the bottom outlet end of the main vibrating sieve frame 2, so as to facilitate the screened material not to fall during the recovery process of the material holding seat 14; Then through the above operation of the extension and retraction end of the reciprocating cylinder 19 driving the support plate one 13 to move, so that the material holding seat 14 moves to the side away from the bottom outlet end of the main vibrating sieve frame 2, after the material in the material holding seat 14 is taken out, the extension and retraction end of the reciprocating cylinder 19 is controlled again to drive the support plate one 13 and the material holding seat 14 to move to the bottom outlet end of the main vibrating sieve frame 2 again, so as to facilitate the subsequent collection of the screened material, and when the material holding seat 14 is restored to the initial position again, the screened material will fall into the material holding seat 14 again by controlling the baffle 20 to move up.

[0035] Obviously, the above embodiments are merely example for clearly illustrating, and are not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and can not be exhausted. The obvious changes or variations derived therefrom are still within the scope of the present invention.

Claims

1. A relaxation vibrating screen, characterized by: It includes a fixed support frame, a main vibrating screen frame is arranged above the fixed support frame, a floating screen frame is arranged inside the main vibrating screen frame, a plurality of elastic polyurethane sieve plates are installed on the surface of the floating screen frame, a plurality of shear springs are installed between the main vibrating screen frame and the fixed support frame, and the plurality of shear springs are designed in an array between the main vibrating screen frame and the fixed support frame, a transparent screen is installed inside the main vibrating screen frame and below the floating screen frame, and the elastic polyurethane sieve plates can be deformed on the surface of the floating screen frame.

2. A relaxation vibrating screen according to claim 1, characterized in that: The side wall of the fixed support is fixedly connected with a connecting bracket, and a horizontal axis 1 is rotatably provided above the connecting bracket. The end of the horizontal axis 1 is connected to the output end of the motor, and a plurality of protrusions 1 are fixedly installed on the outer peripheral surface of the horizontal axis 1. The protrusions of the plurality of protrusions 1 are in different directions. A force plate is installed above the main vibrating screen frame, and the protrusion end of the protrusion 1 will contact the force plate during the rotation process.

3. The relaxation vibrating screen according to claim 1, characterized in that: A rotating shaft is installed inside the main vibrating screen frame, and a cam wheel is fixedly installed on the outer circumference of the rotating shaft. The end of the rotating shaft is connected to the output end of the motor. When the rotating shaft drives the cam wheel to rotate, the raised part of the cam wheel will contact the frame of the floating screen frame. The side wall of the main vibrating screen frame is provided with an assembly groove, and the side wall of the floating screen frame is installed inside the assembly groove. Vibration springs are installed on the upper and lower sides of the side wall of the floating screen frame, and the end of the vibration spring is connected to the groove wall of the assembly groove.

4. A relaxation vibrating screen according to claim 3, characterized in that: The floating screen frame includes a fixed plate and a sliding plate. The fixed plate is arranged on the assembly groove wall, and the vibration spring is connected to the side wall of the fixed plate. The sliding plate is slidably arranged on the side wall of the fixed plate. The elastic polyurethane screen plate is installed on the side wall of the fixed plate. The sliding plate can slide left and right in the fixed plate.

5. A relaxation vibrating screen according to claim 4, characterized in that: The side wall of the main vibrating screen frame is installed with a fitting plate, and the lower end surface of the sliding plate is installed with an inclined plate. When the floating screen frame drives the sliding plate and the fixed plate to move downward, the inclined plate on the lower end surface of the sliding plate will contact the end of the fitting plate.

6. The relaxation vibrating screen according to claim 5, characterized in that: The interior of the fixed plate is provided with a sliding groove adapted to the sliding plate, the sliding plate is designed to slide in the sliding groove, the groove wall of the sliding groove is fixed with a tension spring, and the tension spring is connected to the side wall of the sliding plate away from the groove wall of the sliding groove.

7. The relaxation vibrating screen according to claim 6, characterized in that: The inclined surface of the inclined plate is provided with a limiting groove, the end of the engaging plate is arranged in the limiting groove of the inclined surface of the inclined plate, and the shape of the end of the engaging plate is adapted to the shape of the limiting groove.

8. The relaxation vibrating screen according to claim 2, characterized in that: A recycling station is provided on the side of the fixed support frame, and a support plate 1 is slidingly provided on the side wall of the fixed support frame. A material holding seat is installed above the support plate 1, and the material holding seat is used to collect the material after screening. The support plate 1 can move inside the fixed support frame and move the collected material holding seat to the recycling station.

9. The relaxation vibrating screen according to claim 8, characterized in that: Support springs are installed around the upper end surface of the support plate one, support plate two is installed on the upper end surface of the support spring, the material holding seat is placed on the upper end surface of the support plate two, contact one is installed on the lower end surface of the support plate two, and contact two is installed on the upper end surface of the support plate one, and the contact one and contact two are designed on the same vertical plane.

10. The relaxation vibrating screen according to claim 9, characterized in that: A reciprocating cylinder is installed on the side of the bottom of the fixed support frame close to the support plate one, the telescopic end of the reciprocating cylinder is connected to the side wall of the support plate one, and a groove adapted to the support plate one is opened inside the fixed support frame; a baffle is slidably installed on the bottom of the main vibrating screen frame, and the top of the baffle is connected through an electric telescopic column.

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