Powder spiral vibration lifting device

Abstract

The invention relates to the technical field of lifting devices, and particularly discloses a powder spiral vibration lifting device which comprises a rack, a center rod, a spiral feeding plate and a vibration motor, a screening mechanism, a crushing mechanism and a cleaning mechanism are arranged on the rack, the screening mechanism comprises a screening plate, and the screening plate is spirally and movably installed on the outer side of the center rod; the screening plate comprises a first screening plate and a second screening plate which are sequentially arranged from bottom to top, each crushing mechanism comprises a sliding plate and a plurality of spine parts arranged at the upper end of the sliding plate, the cleaning mechanism comprises a scraping plate and a driving assembly, and the scraping plate is arranged on the second screening plate and can clean the back face of the spiral feeding plate; according to the device, caked materials can be intercepted above the screening plate through the screening plate, in the material vibration lifting process, the caked materials are crushed through the crushing mechanism, in addition, the back face of the spiral feeding plate can be cleaned through the cleaning mechanism, and the problem of material adhesion is solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices, and in particular to a powder material spiral vibration lifting device. Background Art

[0002] The spiral vibrating elevator is a professional vibrating conveying equipment suitable for vertical conveying of granular, powdery and block materials. It can complete various process operations such as cooling, drying, heating and humidification while conveying materials. It is widely used in plastics, chemicals, rubber, medicine, light industry, food, metallurgy, building materials and other industries. The working principle of the spiral vibrating elevator is based on the vibration generated by the vibration motor. Two vibration motors are installed on the lifting trough, and their center lines cross and rotate synchronously in opposite directions. The eccentric block of the vibration motor generates centrifugal force when rotating. The components of these forces reciprocate in the throwing direction, so that the material is thrown up in the lifting trough and conveyed upward.

[0003] The patent document with announcement number CN107380930B discloses a construction powder lifting and feeding device, including a horizontally arranged first feeding barrel, a first spiral mechanism and a second spiral mechanism arranged in parallel are arranged in the first feeding barrel, the spiral blades of the two have the same spiral direction, a first driving mechanism drives the first spiral mechanism and the second spiral mechanism to rotate in the same direction respectively, the second feeding barrel is vertically arranged above the first feeding barrel, the third spiral mechanism is vertically arranged in the second feeding barrel and its lower end passes through the second feeding port and extends into the first feeding barrel, through the horizontally arranged first feeding barrel and the vertically arranged second feeding barrel, the material can be fed in the horizontal and vertical directions, in the first feeding barrel, the first spiral mechanism and the second spiral mechanism jointly spirally feed, and at the same time the two grind the powder and crush the blocks in the powder, the third spiral mechanism lifts the material in the first feeding barrel upward and realizes secondary crushing at the same time.

[0004] However, agglomerated materials usually have a high moisture content. During storage or transportation, the material particles stick together due to moisture. If the agglomerated materials are crushed by rolling, the agglomerated materials are easily pressed into powder cakes, which fails to achieve the crushing effect. In addition, after the agglomerated materials are crushed, the particles that were originally stuck due to moisture may adhere to the first spiral mechanism and the second spiral mechanism, affecting the subsequent crushing effect of the agglomerated materials, and may also affect the subsequent material transportation. Summary of the invention

[0005] The present invention provides a spiral vibration lifting device for powder, aiming to solve the problem that when the agglomerated materials are crushed by rolling in the related technology, the agglomerated materials are easily pressed into powder cakes, and the crushing effect cannot be achieved. In addition, after the agglomerated materials are crushed, the particles originally stuck together due to moisture may adhere to the first spiral mechanism and the second spiral mechanism, affecting the subsequent crushing effect of the agglomerated materials, and may also affect the subsequent transportation of materials.

[0006] A powder spiral vibration lifting device of the present invention comprises a frame, a center rod, a spiral feeding plate and a vibration motor, wherein a feed tray and a discharge port are arranged on the frame, and further comprises: The screening mechanism comprises a screening plate, the screening plate is movably mounted on the outer side of the central rod in a spiral shape, and a first conveying channel is formed between the surface of the screening plate and the back side of the spiral feeding plate, and a second conveying channel is formed between the back side of the screening plate and the surface of the spiral feeding plate adjacent to and close to the feed tray, and the screening plate comprises a first screening plate and a second screening plate arranged in sequence from bottom to top; A crushing mechanism, wherein the crushing mechanism is provided in plurality, each crushing mechanism comprises a sliding plate and a plurality of spikes provided on the upper end of the sliding plate, the plurality of sliding plates are respectively longitudinally slidably provided in a plurality of slide grooves provided on the second screen plate, and an elastic member is connected between each sliding plate and the second screen plate; The cleaning mechanism includes a scraper and a driving assembly. The scraper is arranged on the second screen plate and can clean the back of the spiral feeding plate. The driving assembly is used to drive the second screen plate to move up and down or / and rotate around the axis of the frame.

[0007] The agglomerated materials can be retained above the screening plate by the screening plate and crushed by the crushing mechanism. In addition, the back of the spiral feeding plate can be cleaned by the cleaning mechanism to solve the problem of material adhesion.

[0008] Preferably, one end of the first sieve plate and the second sieve plate close to the feed tray is the head end, and the other end is the tail end, the head end of the first sieve plate extends into the feed tray, and the inlet end of the second conveying channel is not connected to the feed tray, an elastic connecting piece is connected between the tail end of the first sieve plate and the head end of the second sieve plate, and the length of the elastic connecting piece can be adapted according to the distance between the tail end of the first sieve plate and the head end of the second sieve plate.

[0009] Preferably, the driving assembly includes a driving rod, a driving motor, a lifting rod, an electric telescopic rod and a transmission member. The driving rod is arranged inside the center rod and rotates longitudinally. The driving motor is arranged in the center rod, and the output end is connected to the upper end of the driving rod, which is used to drive the driving rod to rotate. The lifting rod is arranged in the driving rod and slides longitudinally. The electric telescopic rod is arranged in the driving rod, and the output end is connected to the lower end of the lifting rod, which is used to drive the lifting rod to move up and down. The transmission member is used to drive the second screen plate to rotate with the driving rod, or to move up and down with the lifting rod.

[0010] Preferably, the transmission member includes a plurality of sleeve rods fixedly sleeved on the outside of the lifting rod, and a connecting rod provided between the lifting rod and the second sieve plate. The plurality of sleeve rods are arranged in sequence along the axial direction of the lifting rod, and there is a gap between any two adjacent sleeve rods. A guide groove 1 is axially provided on the outside of the driving rod, and a connecting rod is slidably arranged in the guide groove 1, and one end of the connecting rod is connected to the second sieve plate, and the other end extends into the gap between two adjacent sleeve rods. A guide groove 2 is provided on the center rod, and the connecting rod slides in cooperation with the guide groove 2. The guide groove 2 includes a first section groove arranged longitudinally and a second section groove arranged spirally, and the outlet end of the first section groove is transitionally connected to the entrance end of the second section groove.

[0011] Preferably, the height of the gap formed between two adjacent sleeve rods is greater than the height of the connecting rod.

[0012] When the vibration motor is started, the connecting rod will vibrate up and down in the gap formed between two adjacent sleeve rods to avoid affecting the lifting of the material.

[0013] Preferably, the upper end of the sliding plate is connected to a contact plate, the height of the contact plate is higher than the height of the spike portion, and the upward end of the contact plate is arc-shaped.

[0014] During the upward movement of the second screen plate, the contact plate will first contact the back side of the spiral feeding plate to prevent the spike portion from contacting the bottom of the spiral feeding plate and causing damage to the spike portion and the spiral feeding plate.

[0015] Preferably, a locking structure is further included, which includes an elastic block and an unlocking piece, wherein the elastic block is arranged on a side of the sliding plate close to the center rod, and an opening is provided on a side of the sliding groove close to the center rod. When the scraper contacts the back side of the spiral feeding plate, the elastic block is in the opening, so that the sliding plate and the sliding groove are locked together, and the unlocking piece is used to drive the elastic block out of the opening to release the locking cooperation between the sliding plate and the sliding groove.

[0016] Preferably, the unlocking member is a spiral rod sleeved on the outside of the central rod, and when the second screen plate moves downward, the spiral rod can contact the elastic block in the opening, causing the elastic block to contract under force.

[0017] During the downward movement of the second screen plate, the locking cooperation between the sliding plate and the chute causes the sliding plate to move upward with a delay relative to the second screen plate, and after subsequent unlocking, the sliding plate moves upward quickly to eject the material in the chute into the first conveying channel.

[0018] Preferably, a baffle is connected to the end of the second screen plate, and the baffle is located in the first conveying channel. The lower end of the baffle is hinged to the end of the second screen plate through a torsion spring, and the upper end contacts the back of the spiral feeding plate, and the baffle gradually tilts from bottom to top along the conveying direction of the material.

[0019] The unbroken agglomerated materials in the first conveying channel can be blocked, so that the agglomerated materials are repeatedly broken here until all the agglomerated materials are completely broken to ensure the breaking effect.

[0020] Preferably, the baffle is a telescopic structure, so that the length of the baffle can be adapted according to the distance between the second sieve plate and the spiral feeding plate.

[0021] The beneficial effects of the present invention are: 1. The present invention is provided with a screening mechanism and a crushing mechanism. The material to be lifted is added into the first conveying channel. In the process of lifting the material upward, the material can be screened by the screening plate, and the agglomerated material is retained in the first conveying channel and continues to be lifted upward. In the subsequent lifting process, the agglomerated material is impacted and dispersed by the spike part to achieve the crushing of the agglomerated material.

[0022] 2. The present invention is provided with a cleaning mechanism, which can drive the second screen plate to move upward through the driving component, so that the scraper contacts the back of the spiral feeding plate, and then drives the second screen plate to spirally rise through the driving component, so that the scraper cleans the back of the spiral feeding plate and scrapes the material adhered to the back of the spiral feeding plate into the first conveying channel, so as to solve the problem of easy adhesion of crushed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the assembly structure of the screening mechanism and the spiral feeding plate of the present invention.

[0025] Figure 3 It is a schematic diagram of the state when the cleaning mechanism of the present invention cleans the spiral feeding plate.

[0026] Figure 4 The present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 5It is a schematic diagram of the assembly structure of the second screen plate and the crushing mechanism of the present invention.

[0028] Figure 6 The present invention Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0029] Figure 7 It is a schematic diagram of the assembly structure of the second screen plate and the driving assembly of the present invention.

[0030] Figure 8 It is a schematic structural diagram of the first section groove and the second section groove of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of the crushing mechanism of the present invention.

[0032] Reference numerals: 11. Frame; 111. Feed tray; 112. Discharge port; 12. Center rod; 121. First section slot; 122. Second section slot; 13. Spiral loading plate; 14. Vibration motor; 2. Screening plate; 21. First screen plate; 22. Second screen plate; 221. Slide; 2211. Opening; 23. Baffle; 3. Sliding plate; 31. Spike; 32. Contact plate; 33. Elastic block; 34. Screw rod; 4. Scraper; 41. Drive rod; 411. Guide slot 1; 42. Drive motor; 43. Lifting rod; 431. Sleeve rod; 44. Connecting rod. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 9 As shown, a powder spiral vibration lifting device of the present invention includes a frame 11, a center rod 12, a spiral feeding plate 13 and a vibration motor 14. The frame 11 is provided with a feed tray 111 and a discharge port 112. The center rod 12 is arranged inside the frame 11 along the axis of the frame 11, and the spiral feeding plate 13 is installed on the outside of the center rod 12 along the axial direction of the center rod 12. A screening mechanism, a crushing mechanism and a cleaning mechanism are also provided in the frame 11.

[0035] The screening mechanism includes a screening plate 2, which is movably mounted on the outer side of the center rod 12 in a spiral shape, and a first conveying channel is formed between the surface of the screening plate 2 and the back side of the spiral loading plate 13, and a second conveying channel is formed between the back side of the screening plate 2 and the surface of the spiral loading plate 13 adjacent to and close to the feed plate 111. The screening plate 2 includes a first screen plate 21 and a second screen plate 22 arranged in sequence from bottom to top. The crushing mechanism is provided in plurality, each crushing mechanism includes a sliding plate 3 and a plurality of spike portions 31 arranged at the upper end of the sliding plate 3, and the plurality of sliding plates 3 are respectively longitudinally slid in a plurality of slide grooves 221 arranged on the second screen plate 22, and an elastic member is connected between each sliding plate 3 and the second screen plate 22. The cleaning mechanism includes a scraper 4 and a driving assembly. The scraper 4 is provided on the second screen plate 22 and can clean the back side of the spiral loading plate 13. The driving assembly is used to drive the second screen plate 22 to move up and down or / and rotate around the axis of the frame 11.

[0036] Specifically, the vibration motor 14 is started, and the material to be lifted is put into the feed tray 111. The material will enter the upper side of the screen plate 2 and be transported upward along the first conveying channel under the action of vibration. In this process, the small-size material can pass through the sieve holes on the first screen plate 21 and the second screen plate 22 and fall to the lower side of the screen plate 2, and be transported upward along the second conveying channel under the action of vibration until it is lifted to the upper end of the frame 11, and then discharged from the discharge port 112, while the agglomerated material will be trapped on the upper side of the screen plate 2 and continue to be transported upward. After the agglomerated material is transported to the upper side of the second screen plate 22, the agglomerated material will continue to vibrate up and down under the action of vibration, and in this process, it will be broken by the spikes 31 on the second screen plate 22, so that in the process of the agglomerated material being lifted upward, it will be repeatedly broken by the spikes 31 in the multiple crushing mechanisms to completely break up the agglomerated material. After a period of time, the second screen plate 22 is driven to move upward by the driving component, and the scraper 4 arranged on the second screen plate 22 is driven to move upward synchronously until the upper end of the scraper 4 contacts the back side of the spiral feeding plate 13. At this time, the second screen plate 22 is driven by the driving component to continue to move upward and rotate around the axis of the frame 11, so that the second screen plate 22 spirals upward and drives the scraper 4 to move synchronously. During this process, the scraper 4 can scrape the material adhering to the back side of the spiral feeding plate 13 back into the first conveying channel. After completing the cleaning of the spiral feeding plate 13, the second screen plate 22 is driven to reset by the driving component. At this time, the scraped material will continue to be conveyed upward along the first conveying channel, and continue to be crushed by the crushing mechanism during this process until all the agglomerated materials are crushed and fall into the second conveying channel through the sieve holes on the second screen plate 22 for continued lifting.

[0037] It should be noted that, with one end of the first sieve plate 21 and the second sieve plate 22 close to the feed tray 111 as the head end, and the other end as the end, the head end of the first sieve plate 21 extends into the feed tray 111, and the entrance end of the second conveying channel is not connected to the feed tray 111, and an elastic connecting piece is connected between the end of the first sieve plate 21 and the head end of the second sieve plate 22, and the length of the elastic connecting piece can be adapted according to the distance between the end of the first sieve plate 21 and the head end of the second sieve plate 22. Specifically, in the process of the second sieve plate 22 moving up and down or / and rotating around the axis of the frame 11, the length of the elastic connecting piece connected to the end of the first sieve plate 21 and the head end of the second sieve plate 22 will be adapted according to the movement of the second sieve plate 22, so that the material in the first conveying channel can be smoothly conveyed from the upper side of the first sieve plate 21 to the upper side of the second sieve plate 22, and will not fall directly into the second conveying channel due to the movement of the second sieve plate 22, thereby avoiding affecting the crushing effect of the agglomerated material.

[0038] In some embodiments, the driving assembly includes a driving rod 41, a driving motor 42, a lifting rod 43, an electric telescopic rod and a transmission member. The driving rod 41 is arranged in the center rod 12 to rotate along the longitudinal direction. The driving motor 42 is arranged in the center rod 12, and the output end is connected to the upper end of the driving rod 41, which is used to drive the driving rod 41 to rotate. The lifting rod 43 is arranged in the driving rod 41 to slide along the longitudinal direction. The electric telescopic rod is arranged in the driving rod 41, and the output end is connected to the lower end of the lifting rod 43, which is used to drive the lifting rod 43 to move up and down. The transmission member is used to drive the second sieve plate 22 to rotate with the driving rod 41, or to move up and down with the lifting rod 43. The transmission member includes a plurality of sleeve rods 431 fixedly sleeved on the outside of the lifting rod 43, and a connecting rod 44 arranged between the lifting rod 43 and the second sieve plate 22. The plurality of sleeve rods 431 are arranged in sequence along the axial direction of the lifting rod 43, and There is a gap between any two adjacent sleeve rods 431, and a guide groove 411 is axially provided on the outer side of the driving rod 41, and the connecting rod 44 is slidably arranged in the guide groove 411, and one end of the connecting rod 44 is connected to the second screen plate 22, and the other end extends into the gap between the two adjacent sleeve rods 431, so that the lifting rod 43 can drive the connecting rod 44 to move up and down during the up and down movement of the lifting rod 43, and a guide groove 2 is provided on the side wall of the center rod 12, and the connecting rod 44 slides in cooperation with the guide groove 2, and the guide groove 2 includes a longitudinally arranged first section groove 121 and a spirally arranged second section groove 122, and a transition connection is formed between the outlet end of the first section groove 121 and the entrance end of the second section groove 122, and when the second screen plate 22 moves up and down, the connecting rod 44 slides along the first section groove 121, and when the second screen plate 22 rotates spirally, the connecting rod 44 slides along the second section groove 122.

[0039] Specifically, Figures 2 to 8As shown, when the electric telescopic rod is started to drive the lifting rod 43 to move up and down, the connecting rod 44 can be driven to move up and down, and at the same time, the second screen plate 22 connected to the connecting rod 44 can be driven to move up and down. When the driving motor 42 is started to drive the driving rod 41 to rotate, the connecting rod 44 that cooperates with the driving rod 41 in the longitudinal sliding direction can be driven to rotate synchronously, and at the same time, the second screen plate 22 connected to the connecting rod 44 can be driven to rotate. Therefore, when it is necessary to clean the back side of the spiral feeding plate 13, the electric telescopic rod is started to drive the lifting rod 43 to move upward, and the connecting rod 44 is driven along the first section The groove 121 moves upward until the connecting rod 44 moves to the outlet end of the first section groove 121. At this time, the connecting rod 44 is driven by the electric telescopic rod to continue to move upward, and the driving motor 42 is started to drive the connecting rod 44 to rotate. Through the rotation and upward movement of the connecting rod 44, the connecting rod 44 can slide along the second section groove 122, and drive the second screen plate 22 and the scraper 4 to rotate in a spiral manner, so as to clean the back side of the spiral feeding plate 13, and scrape the material adhering to the back side of the spiral feeding plate 13 into the first conveying channel to solve the problem of adhesion of the crushed material.

[0040] It should be noted that the height of the gap formed between two adjacent sleeve rods 431 is greater than the height of the connecting rod 44. When the vibration motor 14 is started to vibrate the center rod 12, the spiral feeding plate 13 and the screening plate 2 installed on the outside of the center rod 12 will be driven to vibrate up and down, and the connecting rod 44 connected to the second screen plate 22 will be driven to vibrate up and down. During this process, the connecting rod 44 will vibrate in the gap formed between the two adjacent sleeve rods 431; when the electric telescopic rod is started to drive the lifting rod 43 to move upward, the sleeve rod 431 on the outside of the lifting rod 43 will be driven to move upward synchronously. At this time, the connecting rod 44 can be pushed to move upward by the sleeve rod 431 on the lower side of the connecting rod 44 to drive the second screen plate 22 to move upward synchronously. When the electric telescopic rod is started to drive the lifting rod 43 to move downward, the sleeve rod 431 will be driven to move downward synchronously. At this time, the connecting rod 44 will break away from the obstruction of the lower sleeve rod 431, so that the connecting rod 44 and the second screen plate 22 move downward under the action of gravity until the connecting rod 44 contacts the lower sleeve rod 431 again.

[0041] In some embodiments, the upper end of the sliding plate 3 is connected to a contact plate 32 , the height of the contact plate 32 is higher than the height of the spike portion 31 , and the upward end of the contact plate 32 is arc-shaped.

[0042] Specifically, Figures 5 to 9 As shown, during the upward movement of the second screen plate 22, the contact plate 32 will first contact the back side of the spiral loading plate 13 to prevent the spike portion 31 from contacting the bottom of the spiral loading plate 13, thereby preventing the spike portion 31 and the spiral loading plate 13 from being damaged when the spike portion 31 and the spiral loading plate 13 subsequently move relative to each other.

[0043] In some embodiments, a locking structure is also provided in the frame 11, and the locking structure includes an elastic block 33 and an unlocking piece. The elastic block 33 is arranged on the side of the sliding plate 3 close to the center rod 12, and an opening 2211 is provided on the side of the slide groove 221 close to the center rod 12. When the upper end of the scraper 4 contacts the back side of the spiral feeding plate 13, the elastic block 33 is in the opening 2211, so that the sliding plate 3 is locked with the slide groove 221. The unlocking piece is used to drive the elastic block 33 out of the opening 2211 to release the locking fit between the sliding plate 3 and the slide groove 221. The unlocking piece is a spiral rod 34 sleeved on the outside of the center rod 12. During the downward movement of the second screen plate 22, the spiral rod 34 can contact the elastic block 33 in the opening 2211, and cause the elastic block 33 to contract under force.

[0044] Specifically, Figures 5 to 9 As shown, the second sieve plate 22 is driven upward by the driving assembly, so that when the upper end of the scraper 4 contacts the back side of the spiral feeding plate 13, the crushing mechanism retracts into the corresponding chute 221 on the second sieve plate 22, and the elastic member is compressed to store force. At this time, the elastic block 33 extends outward into the opening 2211, so that the sliding plate 3 and the chute 221 are locked and matched. Then, the second sieve plate 22 is driven by the driving assembly to rotate spirally, and the scraper 4 is driven to clean the back side of the spiral feeding plate 13. At this time, the material scraped off from the spiral feeding plate 13 will fall into the chute 221 and fall. Above the sliding plate 3, after cleaning is completed, the second screen plate 22 is driven to reset by the driving assembly. During this process, due to the locking cooperation between the sliding plate 3 and the slide groove 221, the sliding plate 3 and the second screen plate 22 are relatively fixed until the elastic block 33 contacts the spiral rod 34, causing the elastic block 33 to contract under force to release the locking cooperation between the sliding plate 3 and the slide groove 221. At this time, the sliding plate 3 will move upward rapidly relative to the second screen plate 22 under the action of the elastic member, and the material in the slide groove 221 will be ejected into the second conveying channel, so that this part of the material can continue to be lifted.

[0045] In some embodiments, a baffle 23 is connected to the end of the second screen plate 22, and the baffle 23 is located in the first conveying channel. The lower end of the baffle 23 is hinged to the end of the second screen plate 22 through a torsion spring, and the upper end is in contact with the back of the spiral feeding plate 13. The baffle 23 gradually tilts from bottom to top along the conveying direction of the material, so that it is easy to flip in the inclined direction when the baffle 23 is subjected to force.

[0046] Specifically, Figures 2 to 7As shown, the agglomerated materials in the first conveying channel can be repeatedly crushed by the crushing mechanism during the process of being lifted upward along the second screen plate 22, so that the crushed materials fall into the second conveying channel and continue to be lifted upward, while the agglomerated materials that have not been crushed will continue to be lifted upward along the first conveying channel until they are conveyed to the end of the second screen plate 22 and blocked by the baffle 23. At this time, this part of the agglomerated materials will be repeatedly crushed by the crushing mechanism at the end of the second screen plate 22 until all the agglomerated materials are completely crushed to ensure the crushing effect of the agglomerated materials; when the back of the spiral feeding plate 13 needs to be cleaned, the second screen plate 22 is driven upward by the driving assembly, and the scraper 4 arranged on the second screen plate 22 is driven to move synchronously until the upper end of the scraper 4 contacts the back of the spiral feeding plate 13. During this process, the baffle 23 will flip around the end of the second screen plate 22 to avoid blocking the movement of the second screen plate 22.

[0047] In some embodiments, the baffle 23 is a telescopic structure, so that the length of the baffle 23 can be adapted according to the distance between the second sieve plate 22 and the spiral feeding plate 13. Specifically, Figures 4 to 7 As shown, when the vibration motor 14 is started to drive the second screen plate 22 and the spiral feeding plate 13 to vibrate up and down, if the distance between the second screen plate 22 and the spiral feeding plate 13 decreases or increases, the baffle 23 will shrink or extend to adapt to the distance between the two, so that during the vibration to lift the material, the baffle 23 does not need to twist the torsion spring to rotate, thereby extending the service life of the torsion spring.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A powder spiral vibration lifting device, comprising a frame (11), a center rod (12), a spiral feeding plate (13) and a vibration motor (14), wherein the frame (11) is provided with a feed tray (111) and a discharge port (112), characterized in that: Also includes: A screening mechanism, the screening mechanism comprising a screening plate (2), the screening plate (2) being movably mounted on the outer side of a central rod (12) in a spiral shape, and a first conveying channel being formed between a surface of the screening plate (2) and a back side of a spiral loading plate (13), and a second conveying channel being formed between the back side of the screening plate (2) and a surface of a spiral loading plate (13) adjacent to and close to a feed tray (111), the screening plate (2) comprising a first screening plate (21) and a second screening plate (22) arranged in sequence from bottom to top; A crushing mechanism, wherein the crushing mechanism is provided in plurality, each crushing mechanism comprising a sliding plate (3) and a plurality of spike portions (31) provided at the upper end of the sliding plate (3), the plurality of sliding plates (3) respectively slidingly arranged longitudinally in a plurality of sliding grooves (221) provided on the second sieve plate (22), and an elastic member is connected between each sliding plate (3) and the second sieve plate (22); A cleaning mechanism, the cleaning mechanism comprising a scraper (4) and a drive assembly, the scraper (4) being arranged on the second screen plate (22) and capable of cleaning the back side of the spiral feeding plate (13), and the drive assembly being used for driving the second screen plate (22) to move up and down or / and rotate around the axis of the frame (11).

2. A powder spiral vibration lifting device according to claim 1, characterized in that: One end of the first sieve plate (21) and the second sieve plate (22) close to the feed tray (111) is the head end, and the other end is the tail end. The head end of the first sieve plate (21) extends into the feed tray (111), and the inlet end of the second conveying channel is not connected to the feed tray (111). An elastic connecting piece is connected between the tail end of the first sieve plate (21) and the head end of the second sieve plate (22), and the length of the elastic connecting piece can be adapted according to the distance between the tail end of the first sieve plate (21) and the head end of the second sieve plate (22).

3. The powder material spiral vibration lifting device according to claim 1 is characterized in that: The driving assembly comprises a driving rod (41), a driving motor (42), a lifting rod (43), an electric telescopic rod and a transmission member, wherein the driving rod (41) is arranged inside the central rod (12) to rotate along the longitudinal direction, the driving motor (42) is arranged inside the central rod (12), and the output end is connected to the upper end of the driving rod (41) for driving the driving rod (41) to rotate, the lifting rod (43) is arranged inside the driving rod (41) to slide along the longitudinal direction, the electric telescopic rod is arranged inside the driving rod (41), and the output end is connected to the lower end of the lifting rod (43) for driving the lifting rod (43) to move up and down, and the transmission member is used to drive the second sieve plate (22) to rotate along with the driving rod (41) or to move up and down along with the lifting rod (43).

4. The powder spiral vibration lifting device according to claim 3 is characterized in that: The transmission member comprises a plurality of sleeve rods (431) fixedly sleeved on the outside of the lifting rod (43), and a connecting rod (44) arranged between the lifting rod (43) and the second sieve plate (22). The plurality of sleeve rods (431) are arranged in sequence along the axial direction of the lifting rod (43), and a gap is provided between any two adjacent sleeve rods (431). A guide groove 1 (411) is axially provided on the outside of the driving rod (41). The connecting rod (44) is slidably arranged in the guide groove 1 (411), and one end of the connecting rod (44) is connected to the second sieve plate (22), and the other end extends into the gap between two adjacent sleeve rods (431). A guide groove 2 is provided on the center rod (12), and the connecting rod (44) is slidably matched with the guide groove 2. The guide groove 2 comprises a first section groove (121) arranged longitudinally and a second section groove (122) arranged helically. The outlet end of the first section groove (121) and the inlet end of the second section groove (122) are transitionally connected.

5. The powder material spiral vibration lifting device according to claim 4 is characterized in that: The height of the gap formed between two adjacent sleeve rods (431) is greater than the height of the connecting rod (44).

6. The powder material spiral vibration lifting device according to claim 4, characterized in that: The upper end of the sliding plate (3) is connected to a contact plate (32), the height of the contact plate (32) is higher than the height of the spike portion (31), and the upward end of the contact plate (32) is arc-shaped.

7. The powder material spiral vibration lifting device according to claim 1, characterized in that: The invention also comprises a locking structure, wherein the locking structure comprises an elastic block (33) and an unlocking member, wherein the elastic block (33) is arranged on a side of the sliding plate (3) close to the center rod (12), and an opening (2211) is arranged on a side of the sliding groove (221) close to the center rod (12). When the scraper (4) contacts the back side of the spiral feeding plate (13), the elastic block (33) is located in the opening (2211), so that the sliding plate (3) and the sliding groove (221) are locked and matched, and the unlocking member is used to drive the elastic block (33) to disengage from the opening (2211), so as to release the locking and matching between the sliding plate (3) and the sliding groove (221).

8. The powder material spiral vibration lifting device according to claim 7, characterized in that: The unlocking member is a spiral rod (34) sleeved on the outside of the central rod (12); when the second screen plate (22) moves downward, the spiral rod (34) can contact the elastic block (33) in the opening (2211), causing the elastic block (33) to contract under force.

9. The powder material spiral vibration lifting device according to claim 1, characterized in that: The end of the second sieve plate (22) is connected to a baffle plate (23), the baffle plate (23) is located in the first conveying channel, the lower end of the baffle plate (23) is hinged to the end of the second sieve plate (22) via a torsion spring, the upper end is in contact with the back side of the spiral feeding plate (13), and the baffle plate (23) is gradually inclined from bottom to top along the conveying direction of the material.

10. The powder material spiral vibration lifting device according to claim 9, characterized in that: The baffle plate (23) is a telescopic structure, so that the length of the baffle plate (23) can be adapted according to the distance between the second sieve plate (22) and the spiral feeding plate (13).

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