Ultrasonic vibrating screen stretching device

Abstract

The utility model belongs to the technical field of vibrating screen stretching, and particularly relates to an ultrasonic vibrating screen stretching device which aims at solving the problems that stretching operation is tedious and stretching stress is uneven and comprises a positioning steel ring, a bottom plate, a screen frame, a limiting supporting assembly, a telescopic supporting assembly, a screen and a tensiometer. After the screen wraps one side of the ring body of the positioning steel ring, the screen frame is fixedly placed on the limiting supporting assembly, the positioning steel ring is turned over, the ring body of the side, wrapped with the screen, of the positioning steel ring faces downwards, and the positioning steel ring and the screen are placed on the screen frame through contraction of the telescopic supporting assembly. The screen frame and the positioning steel ring are in butt joint more tightly through the screen pressing unit, the screen body stress conditions of all parts of the screen can be detected through a tensiometer, it can be ensured that the screen is tightly attached to the screen frame in a tightened state with uniform stress, one person can conduct screen stretching operation in the whole process, and the screen stretching convenience is greatly improved.

Description

An ultrasonic vibrating screen mesh tensioning device Technical Field

[0001] This utility model relates to a mesh tensioning device, specifically an ultrasonic vibrating screen mesh tensioning device, belonging to the field of vibrating screen mesh tensioning technology. Background Technology

[0002] The high-temperature solid-state process for producing lithium iron phosphate cathode materials includes batching, grinding, spray drying, sintering, pulverizing, sieving and demagnetizing, and packaging. Sieving is crucial for removing foreign impurities and large particles that haven't been properly pulverized, making it a key step in quality control and directly impacting product quality. Pulverized lithium iron phosphate particles are extremely small, easily adsorbed, easily agglomerated, and have poor flowability. Conventional vibrating screens cannot meet these requirements; only ultrasonic vibrating screens can satisfy the necessary conditions.

[0003] The screen wires used in ultrasonic vibrating screens are very fine and easily broken. The tension requirements for the screen are also very strict. If the tension weakens or is not up to standard during use, the vibration force of the screen will decrease. If the material accumulates on the screen for a long time, it will cause the screen to break, affecting product quality and, in severe cases, causing quality accidents.

[0004] The requirements for stretching the screen mesh on an ultrasonic vibrating screen are very high, and there are three main methods: 1. Returning the screen frame to the factory for stretching, but this has high maintenance costs, a long production cycle, and the round-trip logistics transportation can cause damage to the new screen mesh; 2. Purchasing a hydraulic / pneumatic stretching machine, which is expensive, has high investment costs, is complex to operate, has low screen mesh utilization, and results in significant waste of screen mesh per use; 3. Using a manual stretching device, which has low manufacturing costs, is easy to operate, has high screen mesh utilization, can effectively improve work efficiency, and reduce spare parts costs.

[0005] Currently, the method of tensioning the screen relies entirely on manual operation, requiring four people to simultaneously pull the screen taut while one person tests the tension and applies adhesive. The screen can only be released after the adhesive has cured. This method has several drawbacks: 1. It wastes manpower and resources, requiring five people to operate simultaneously; 2. The screen tension is low; after manual tensioning, the force cannot be stabilized, and the actual tension on the screen surface after tensioning is far lower than the tension during the tensioning process; 3. The screen surface tension is uneven, with some areas having high tension and others low tension; 4. Uneven tension leads to low screening efficiency, material accumulating on the screen for extended periods, eventually causing the screen to break, resulting in a short lifespan for new screens and high maintenance costs; 5. Screen breakage affects product quality and can cause quality incidents. Summary of the Invention

[0006] This invention provides an ultrasonic vibrating screen mesh tensioning device to solve the problems of cumbersome mesh tensioning operation and uneven force on the mesh.

[0007] This utility model achieves the above-mentioned objectives through the following technical solution: an ultrasonic vibrating screen tensioning device, comprising a positioning steel ring, a base plate, and a screen frame. The positioning steel ring and the screen frame are movably disposed above the base plate. A limit support component is connected to the upper surface of the base plate. The screen frame is movably locked onto the limit support component. Telescopic support components are connected to both sides of the base plate. The positioning steel ring is rotatably connected to the upper end of the telescopic support component. A screen is covered on one side of the positioning steel ring. A tension meter is movably placed on the screen. Several screen pressing units are movably connected to the positioning steel ring.

[0008] The limiting support assembly includes limiting slides and positioning struts. The limiting slides are arranged in a cross shape, and the positioning struts are vertically connected to the upper end of the limiting slides. The screen frame is movably placed on the upper end of the positioning struts. The opposite ends of the multiple limiting slides are connected to drive seats, and a synchronous drive unit is provided in the drive seats.

[0009] The telescopic support assembly includes a telescopic outer tube and a telescopic inner rod. The body of the telescopic outer tube is fixedly connected to the base plate, and the telescopic inner rod is movably inserted into the upper end of the telescopic outer tube. The top of the telescopic inner rod is connected to the two sides of the positioning steel ring by a limit-shifting unit.

[0010] As a further improvement of this utility model: the outer diameter of the positioning steel ring is provided with a U-shaped groove, and a retaining ring is movably held in the U-shaped groove.

[0011] As a further embodiment of this utility model: the limiting and flipping unit includes a rotating rod and a limiting collar. The limiting collar is fixedly connected to the upper end of the telescopic inner rod, the rotating rod is rotatably connected inside the limiting collar, and the outer diameter of the positioning steel ring is connected to a symmetrically arranged support rod. The outer end of the support rod is fixedly connected to the rotating rod on the same axis. The top of the limiting collar is threaded with a positioning bolt.

[0012] As a further embodiment of this utility model: the screen pressing unit includes a hook screen pressing clamp and a clamping bolt. The side of the positioning steel ring that is not covered by the screen has several evenly distributed limiting grooves. The hook screen pressing clamp is movably locked on the outside of the positioning steel ring. The clamping bolt is threaded through and connected to the upper end of the hook screen pressing clamp, and the bottom end of the clamping bolt is locked in the limiting groove.

[0013] As a further improvement of this utility model: the lower surface of the base plate is connected to a support foot, and the support foot is set in an outward tilting position.

[0014] As a further improvement of this utility model: a slider and a rotating rod are provided inside the limiting slide block. The rotating rod is rotatably connected inside the limiting slide block. One end of the rotating rod is provided with a threaded ring. The slider is threaded onto the threaded ring. The bottom end of the positioning support rod is fixedly connected to the slider. The top end of the positioning support rod is provided with a positioning slot.

[0015] As a further embodiment of this utility model: the synchronous drive unit includes a conical toothed disk and a conical gear. The conical gear is meshed with the outer periphery of the conical toothed disk in a cross-shaped distribution. The conical gear is coaxially and fixedly connected to one end of the rotating rod. A rotating shaft is coaxially and fixedly connected to the conical toothed disk. The upper end of the rotating shaft is located outside the drive seat, and a rotating ring is fixedly connected to the upper end of the rotating shaft.

[0016] As a further improvement of this utility model, a fixing bolt is threaded through one side of the upper end of the telescopic outer tube.

[0017] As a further improvement of this utility model: several tension test templates are placed on the screen body, and the tension meter is placed flat on any tension test template.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model includes a positioning steel ring, a base plate, and a screen frame. A limiting support assembly is connected to the upper surface of the base plate. The screen frame is movably secured to the limiting support assembly. Telescopic support assemblies are connected to both sides of the base plate. A screen is covered on one side of the positioning steel ring. A tension gauge is movably placed on the screen mesh. Several screen pressing units are movably connected to the positioning steel ring. By integrating the positioning steel ring and the screen frame onto the base plate, the positioning steel ring and screen frame can be positioned and placed, and the screen can be covered on one side of the positioning steel ring. From the side and rear, the screen frame is fixedly placed on the limiting support component. The positioning steel ring is flipped so that the side of the positioning steel ring covering the screen is facing down. The positioning steel ring and the screen are placed on the screen frame by the contraction of the telescopic support component. The screen frame and the positioning steel ring are connected more tightly by the screen pressing unit. The tension of the screen body in various parts can be detected by the tension meter. This ensures that the screen is taut and tightly attached to the screen frame under uniform stress. The whole process can be performed by one person, which greatly improves the convenience of screen tensioning.

[0020] 2. The limiting support component of this utility model includes limiting slides and positioning support rods. The limiting slides are arranged in a cross shape, and the positioning support rods are vertically connected to the upper end of the limiting slides. The screen frame is movably placed on the upper end of the positioning support rods. The opposite ends of the multiple limiting slides are connected to drive seats. The drive seats are equipped with synchronous drive units, which can move multiple positioning support rods simultaneously through synchronous drive units, thereby fixing the placement position of the screen frame to ensure the stability of the screen frame during screen tensioning.

[0021] 3. The telescopic support component of this utility model includes a telescopic outer tube and a telescopic inner rod. The top of the telescopic inner rod is connected to the two sides of the positioning steel ring with a limit flipping unit. The positioning steel ring can be rotated by the limit flipping unit, which makes it easier to wrap the screen from above the positioning steel ring. The screen can also be flipped so that the side of the positioning steel ring that is wrapped with the screen faces downward, so that the screen can be stretched on the screen frame. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 is a schematic diagram of the tensioned net structure of this utility model;

[0024] Figure 3 is a schematic diagram of the structure at point A in Figure 1 of this utility model;

[0025] Figure 4 is a schematic diagram of the structure at point B in Figure 1 of this utility model;

[0026] Figure 5 is a schematic diagram of the structure at point C in Figure 2 of this utility model;

[0027] Figure 6 is a schematic diagram of the limiting support component of this utility model;

[0028] Figure 7 is a schematic diagram of the connection structure between the limiting slide and the positioning support rod of this utility model;

[0029] Figure 8 is a schematic cross-sectional view of the limiting slide and drive seat of this utility model.

[0030] In the diagram: 1. Positioning steel ring; 11. U-shaped groove; 12. Binding ring; 13. Support connecting rod; 14. Rotating rod; 15. Hooked mesh clamp; 16. Clamping bolt; 17. Limiting groove; 2. Base plate; 21. Support foot; 3. Limiting slide; 31. Drive seat; 32. Rotating ring; 33. Sliding block; 34. Rotating rod; 35. Threaded ring; 36. Conical gear plate; 37. Conical gear; 38. Rotating shaft; 4. Positioning support rod; 41. Positioning slot; 5. Screen frame; 6. Telescopic outer tube; 61. Fixing bolt; 7. Telescopic inner rod; 71. Limiting collar; 72. Positioning bolt; 8. Screen; 9. Tension test template; 91. Tension gauge. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] As shown in Figures 1 to 8, an ultrasonic vibrating screen tensioning device includes a positioning steel ring 1, a base plate 2, and a screen frame 5. Both the positioning steel ring 1 and the screen frame 5 are movably mounted above the base plate 2. A limit support assembly is connected to the upper surface of the base plate 2. The screen frame 5 is movably secured to the limit support assembly. Telescopic support assemblies are connected to both sides of the base plate 2. The positioning steel ring 1 is rotatably connected to the upper end of the telescopic support assembly. A screen 8 is covered on one side of the positioning steel ring 1. A tension meter 91 is movably placed on the screen 8. Several screen pressing units are movably connected to the body of the positioning steel ring 1. By integrating the positioning steel ring 1 and the screen frame 5 onto the base plate 2, the positioning steel ring can be... After positioning and placing the screen frame 5, and covering one side of the screen 8 with the screen 8, the screen frame 5 is fixedly placed on the limiting support component. The positioning steel ring 1 is flipped so that the side of the positioning steel ring 1 covering the screen 8 is facing down. The positioning steel ring 1 and the screen 8 are placed on the screen frame 5 by the contraction of the telescopic support component. The screen frame 5 and the positioning steel ring 1 are more tightly connected by the screen pressing unit. The tension gauge 91 can detect the stress on the screen body of each part of the screen 8, which can ensure that the screen 8 is taut and tightly attached to the screen frame 5 under uniform stress. The whole process can be performed by one person, which greatly improves the convenience of screen tensioning.

[0034] The limiting support assembly includes a limiting slide 3 and a positioning support rod 4. The limiting slide 3 is arranged in a cross shape, and the positioning support rod 4 is vertically connected to the upper end of the limiting slide 3. The screen frame 5 is movably placed on the upper end of the positioning support rod 4. The opposite ends of the multiple limiting slides 3 are connected to a drive seat 31. The drive seat 31 is equipped with a synchronous drive unit, which can move multiple positioning support rods 4 simultaneously through the synchronous drive unit, thereby fixing the placement position of the screen frame 5 to ensure the stability of the screen frame 5 during screen tensioning.

[0035] The telescopic support assembly includes a telescopic outer tube 6 and a telescopic inner rod 7. The body of the telescopic outer tube 6 is fixedly connected to the base plate 2. The telescopic inner rod 7 is movably inserted into the upper end of the telescopic outer tube 6. The top of the telescopic inner rod 7 is connected to the two sides of the positioning steel ring 1 by a limit flipping unit. The positioning steel ring 1 can be rotated 180° by the limit flipping unit, which makes it easier to wrap the screen 8 from above the positioning steel ring 1. The screen 8 can be wrapped on the side of the positioning steel ring 1 facing downwards by flipping, so that the screen can be stretched on the screen frame 5.

[0036] Example 2

[0037] Improvements based on Example 1:

[0038] As shown in Figures 1 to 5, the outer diameter of the positioning steel ring 1 is provided with a U-shaped groove 11. A retaining ring 12 is movably locked in the U-shaped groove 11. When the screen 8 is wrapped on the positioning steel ring 1, the retaining ring 12 can bind the outer periphery of the screen 8 in the U-shaped groove 11, thus ensuring that the screen 8 can be firmly connected to the positioning steel ring 1.

[0039] Furthermore, the limiting and flipping unit includes a rotating rod 14 and a limiting collar 71. The limiting collar 71 is fixedly connected to the upper end of the telescopic inner rod 7, and the rotating rod 14 is rotatably connected inside the limiting collar 71. The outer diameter of the positioning steel ring 1 is connected to a symmetrically arranged support rod 13. The outer end of the support rod 13 is fixedly connected to the rotating rod 14 along the same axis. The top of the limiting collar 71 is threaded with a positioning bolt 72. The positioning steel ring 1 is combined and connected to the limiting and flipping unit through the support rod 13, and the positioning steel ring 1 can be rotated through the rotating rod 14, so that the screen 8 covered by the positioning steel ring 1 can be flipped. The rotating rod 14 can be fixed by tightening the positioning bolt 72, so that the position of the positioning steel ring 1 after rotation can be fixed.

[0040] Furthermore, the screen pressing unit includes a hook-type screen pressing clamp 15 and a clamping bolt 16. The side of the positioning steel ring 1 that is not covered by the screen 8 has several evenly distributed limiting grooves 17. The hook-type screen pressing clamp 15 is movably clamped on the outside of the positioning steel ring 1. The clamping bolt 16 is threaded through and connected to the upper end of the hook-type screen pressing clamp 15, and the bottom end of the clamping bolt 16 is respectively clamped in the limiting groove 17. This allows the hook-type screen pressing clamp 15 to be evenly distributed on the outside of the positioning steel ring 1, thereby forming a uniform clamping of the connection between the screen frame 5 and the positioning steel ring 1.

[0041] As shown in Figures 1 and 2, the lower surface of the base plate 2 is connected to a support foot 21, and the support foot 21 is set in an outward inclined position, which can form a stable support for the base plate 2.

[0042] As shown in Figures 1, 2, 6, 7, and 8, a slider 33 and a rotating rod 34 are provided inside the limiting slide block 3. The rotating rod 34 is rotatably connected inside the limiting slide block 3. One end of the rotating rod 34 is provided with a threaded ring 35. The slider 33 is threaded onto the threaded ring 35. The bottom end of the positioning support rod 4 is fixedly connected to the slider 33. The top end of the positioning support rod 4 is provided with a positioning slot 41. The positioning slot 41 can be used to position and support the frame of the screen frame 5. When the rotating rod 34 is rotated, the slider 33 is moved by the meshing action of the threaded ring 35 and the slider 33, thereby moving the position of the positioning support rod 4. With the help of the synchronous drive unit, multiple rotating rods 34 can rotate synchronously, thereby allowing multiple positioning support rods 4 to expand outwards simultaneously, thus fixing the screen frame 5.

[0043] Furthermore, the synchronous drive unit includes a conical gear disk 36 and a conical gear 37. The conical gear 37 is meshed with the outer periphery of the conical gear disk 36 in a cross-shaped distribution. The conical gear 37 is coaxially fixedly connected to one end of the rotating rod 34. A rotating shaft 38 is coaxially fixedly connected to the conical gear disk 36. The upper end of the rotating shaft 38 is located outside the drive seat 31, and a rotating ring 32 is fixedly connected to the upper end of the rotating shaft 38. The conical gear disk 36 can be driven to rotate by manually rotating the rotating ring 32, thereby enabling the rotating rod 34 to rotate synchronously under the meshing action of the conical gear disk 36 and the conical gear 37.

[0044] As shown in Figure 6, a fixing bolt 61 is threaded through one side of the upper end of the telescopic outer tube 6. The position of the telescopic inner rod 7 can be fixed by tightening the fixing bolt 61. That is, when the telescopic inner rod 7 is pulled upward to give the positioning steel ring 1 room to flip, the position of the telescopic inner rod 7 can be kept fixed by tightening the fixing bolt 61. This makes it easier to wrap the screen 8 on the positioning steel ring 1 and to flip the positioning steel ring 1.

[0045] As shown in Figures 1 and 2, several tension test templates 9 are placed on the screen body 8. The tension meter 91 is placed flat on any tension test template 9. When the screen is stretched, the tension meter 91 can be used to test the tension between the test points of each tension test template 9. The tightening bolts 16 can be adjusted according to the tested tension value so that the tension at each point meets the requirements.

[0046] Working principle: When the telescopic inner rod 7 is pulled upward to allow the positioning steel ring 1 to rotate, the position of the telescopic inner rod 7 is fixed by tightening the fixing bolt 61. After the screen 8 is wrapped around one side of the positioning steel ring 1, the outer periphery of the screen 8 is bound in the U-shaped groove 11 by the binding ring 12, which ensures that the screen 8 can be firmly connected to the positioning steel ring 1. The screen frame 5 is fixedly placed on the limiting support assembly. The synchronous drive unit moves multiple positioning support rods 4 simultaneously, thereby fixing the placement position of the screen frame 5 to ensure that... When tensioning the screen, keep the screen frame 5 stable, flip the positioning steel ring 1 so that the side of the positioning steel ring 1 covering the screen 8 faces downward. By contracting the telescopic support component, the positioning steel ring 1 and the screen 8 are placed on the screen frame 5. The screen frame 5 and the positioning steel ring 1 are connected more tightly by the screen pressing unit. The tension gauge 91 can detect the stress on the screen body of each part of the screen 8, which can ensure that the screen 8 is taut and tightly attached to the screen frame 5 under uniform stress. The whole process can be performed by one person, which greatly improves the convenience of tensioning the screen.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ultrasonic vibrating screen tensioning device, comprising a positioning steel ring (1), a base plate (2), and a screen frame (5), characterized in that: The positioning steel ring (1) and the screen frame (5) are both movably mounted above the base plate (2). A limiting support assembly is connected to the upper surface of the base plate (2). The screen frame (5) is movably mounted on the limiting support assembly. Telescopic support assemblies are connected to both sides of the base plate (2). The positioning steel ring (1) is rotatably connected to the upper end of the telescopic support assembly. A screen (8) is covered on one side of the positioning steel ring (1). A tension gauge (91) is movably placed on the screen of the screen (8). Several pressing units are movably connected to the body of the positioning steel ring (1). The limiting support assembly includes a limiting slide (3) and a positioning support rod (4). The limiting slide (3) is arranged in a cross shape. The positioning support rod (4) is vertically connected to the upper end of the limiting slide (3). The screen frame (5) is movably placed on the upper end of the positioning support rod (4). The opposite ends of the multiple limiting slides (3) are connected to the drive seat (31). The drive seat (31) is provided with a synchronous drive unit. The telescopic support assembly includes a telescopic outer tube (6) and a telescopic inner rod (7). The body of the telescopic outer tube (6) is fixedly connected to the base plate (2). The telescopic inner rod (7) is movably inserted into the upper end of the telescopic outer tube (6). The top of the telescopic inner rod (7) is connected to the two sides of the positioning steel ring (1) with a limiting flip unit.

2. The ultrasonic vibrating screen mesh tensioning device according to claim 1, characterized in that: The outer diameter of the positioning steel ring (1) is provided with a U-shaped groove (11), and a retaining ring (12) is movably held in the U-shaped groove (11).

3. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: The limiting and flipping unit includes a rotating rod (14) and a limiting collar (71). The limiting collar (71) is fixedly connected to the upper end of the telescopic inner rod (7). The rotating rod (14) is rotatably connected inside the limiting collar (71). The outer diameter of the positioning steel ring (1) is connected to a symmetrically arranged support rod (13). The outer end of the support rod (13) is fixedly connected to the rotating rod (14) on the same axis. The top of the limiting collar (71) is threaded with a positioning bolt (72).

4. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: The screen pressing unit includes a hook screen pressing clamp (15) and a clamping bolt (16). The side of the positioning steel ring (1) that is not covered by the screen (8) has several evenly distributed limiting grooves (17). The hook screen pressing clamp (15) is movably clamped on the outside of the positioning steel ring (1). The clamping bolt (16) is threaded through and connected to the upper end of the hook screen pressing clamp (15), and the bottom end of the clamping bolt (16) is respectively clamped in the limiting groove (17).

5. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: The bottom plate (2) is connected to a support foot (21), and the support foot (21) is set in an outward tilting position.

6. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: The limiting slide (3) is provided with a slider (33) and a rotating rod (34). The rotating rod (34) is rotatably connected to the limiting slide (3). One end of the rotating rod (34) is provided with a threaded ring (35). The slider (33) is threaded onto the threaded ring (35). The bottom end of the positioning support rod (4) is fixedly connected to the slider (33). The top end of the positioning support rod (4) is provided with a positioning slot (41).

7. The ultrasonic vibrating screen tensioning device according to claim 6, characterized in that: The synchronous drive unit includes a conical gear disk (36) and a conical gear (37). The conical gear (37) is meshed with the outer periphery of the conical gear disk (36) in a cross-shaped distribution. The conical gear (37) is coaxially fixedly connected to one end of the rotating rod (34). The conical gear disk (36) is coaxially fixedly connected to a rotating shaft (38). The upper end of the rotating shaft (38) is located outside the drive seat (31), and a rotating ring (32) is fixedly connected to the upper end of the rotating shaft (38).

8. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: The upper end of the telescopic outer tube (6) is threaded with a fixing bolt (61) on one side.

9. The ultrasonic vibrating screen tensioning device according to claim 1, characterized in that: Several tension test templates (9) are placed on the screen (8), and the tension meter (91) is placed flat on any tension test template (9).

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