A fully automatic aggregate sieve test instrument

Abstract

The application discloses a kind of full-automatic aggregate screening test instrument, comprising: vibration table, horizontal setting is on ground;Multi-layer sieve tray, stack setting is on vibration table;Sieve cover, buckle set on the uppermost sieve tray;Sieve tray includes frame and screen, screen is horizontally set in the middle position of frame, and aperture is arranged from top to bottom in decreasing, while the lowermost screen is closed type;The middle position of screen is provided with discharge port, and the lower end surface is provided with the collecting hopper that aligns discharge port, the lower end of collecting hopper is bent and provided with collecting pipe, collecting pipe is horizontally through frame, and the switch mechanism that controls the opening and closing of collecting hopper is provided on frame.The collecting hopper and collecting pipe of the present application can automatically guide the aggregate on each layer of sieve tray, guide and transport the aggregate on each layer of sieve tray after screening, so as to realize the automatic cleaning and collection of aggregate on sieve tray, and realize the continuous screening of multiple batches of aggregate, improve the test efficiency.

Description

Technical Field

[0001] This invention relates to the field of aggregate screening, and in particular to a fully automatic aggregate screening test instrument. Background Technology

[0002] Aggregates generally refer to granular materials used in building materials, serving as a skeleton or filler in concrete, asphalt pavement materials, and other building materials. Based on particle size, aggregates can be further divided into coarse aggregates and fine aggregates.

[0003] A sieve analyzer is a device used for particle size analysis of granular materials. It separates particles of different sizes through a set of sieves with different apertures, thereby determining the particle size distribution of the material. This instrument is widely used in industries such as construction, mining, chemicals, and food, and plays a particularly important role in ensuring product quality during the production of building materials.

[0004] Traditional sieve testing instruments require the sieve trays to be removed after use, and the aggregate on each tray must be collected little by little. This process is inconvenient and affects the efficiency of the test, and needs to be improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a fully automatic aggregate sieving test instrument that improves testing efficiency.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a fully automatic aggregate sieving tester, comprising:

[0007] The vibration table is set horizontally on the ground.

[0008] Multiple sieve trays are stacked on the vibration table;

[0009] A screen cover is attached to the uppermost screen plate, and the screen cover is provided with a feed inlet.

[0010] A fixing mechanism is provided on the vibration table and is used to press the screen cover;

[0011] The sieve tray includes a frame and a sieve screen. The sieve screen is horizontally arranged in the middle of the frame, and the aperture decreases from top to bottom. The bottommost sieve screen is closed.

[0012] The screen has a discharge port in the middle and a collection hopper aligned with the discharge port on its lower end. The lower end of the collection hopper is bent to form a collection pipe that horizontally passes through the frame. The frame is equipped with a switch mechanism to control the opening and closing of the collection hopper.

[0013] In a preferred embodiment, the present invention can be further configured such that: a groove is provided on the inner side of the frame, and a pushing mechanism is provided in the groove, the pushing mechanism being used to push the material collected on the screen to the discharge port position.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the pushing mechanism includes a pushing plate, a driving ring, a handle, a locking member, a guide strip, and a guide rod. The pushing plate is triangularly arranged with its apexes close to each other and abutting against each other to form a circle. The driving ring is rotatably disposed in the groove and presses against the pushing plate. The handle is disposed on the outer wall of the driving ring. The frame is provided with a strip-shaped hole for the handle to slide. The locking member is used to fix the handle. The guide strip is horizontally disposed on the lower end face of the pushing plate. The bottom wall of the groove is provided with a guide groove arranged tangentially to the frame and for the guide strip to slide. The guide rod is vertically disposed on the pushing plate. The driving disc is provided with an arc-shaped guide hole that radiates outward, and the guide hole allows the guide rod to slide.

[0015] In a preferred embodiment, the present invention may be further configured such that the locking element includes a locking hook and a locking ring, the locking hook being rotatably connected to the handle, and the locking ring being disposed at both ends of the strip hole and for the locking hook to engage.

[0016] In a preferred embodiment, the present invention can be further configured such that: the switching mechanism includes a switch plate, a screw, and a handwheel; the switch plate extends through the collecting hopper and is used to cover the discharge port; the screw is horizontally threaded to the frame and rotatably connected to the switch plate; and the handwheel is located at the outer end of the screw.

[0017] In a preferred embodiment, the present invention can be further configured such that: the fixing mechanism includes a gantry frame and a fixing rod, the gantry frame is disposed on the vibrating table and spans multiple layers of the screen plates, and the fixing rod is vertically threaded to the gantry frame and its lower end is rotatably connected to the screen cover.

[0018] In a preferred embodiment, the present invention may be further configured such that: a support frame is provided on the side of the vibration table, and multiple collection trays are provided on the support frame, the collection trays being located below each of the collection tubes.

[0019] In a preferred embodiment, the present invention can be further configured as follows: the support frame includes a frame body, a rotating shaft, and multiple layers of supports. The frame body is vertically arranged, the rotating shaft is vertically rotatably connected to the frame body, and the multiple layers of supports are spaced apart on the rotating shaft. Each layer of the collection tray is provided with multiple trays, which are evenly distributed around the support.

[0020] In a preferred embodiment, the present invention can be further configured such that: the frame is provided with multiple layers of C-shaped protective covers, the protective covers are for the collection trays of each layer to be embedded in, and at the same time, a row of collection trays of each layer is located at the opening position of the protective cover.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. By setting up a collection hopper and collection pipe that can automatically guide the aggregate on each layer of screen, the aggregate on each layer of screen can be guided and transported after screening, thereby realizing automatic cleaning and collection of the aggregate on the screen and enabling continuous screening of multiple batches of aggregate, thus improving test efficiency.

[0023] 2. By setting a pushing mechanism on the screen plate, the aggregate around the screen plate is pushed to the middle position and discharged outward along the collection hopper and collection pipe, thereby improving the collection efficiency of the aggregate;

[0024] 3. By setting up a collection tray that can classify and collect the screened aggregate, the orderly collection and stable storage of the screened aggregate can be achieved, which facilitates subsequent testing. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment;

[0026] Figure 2 This is a schematic diagram of the fixing mechanism in the embodiment;

[0027] Figure 3 This is a schematic diagram of the sieve disc in an embodiment;

[0028] Figure 4 This is a schematic diagram of the bottom structure of the sieve disc in an embodiment;

[0029] Figure 5 This is a schematic diagram of the support frame in an embodiment.

[0030] Reference numerals: 1. Vibrating table; 2. Screen tray; 21. Frame; 22. Screen mesh; 23. Discharge port; 24. Collection hopper; 25. Collection pipe; 26. Groove; 27. Strip hole; 3. Screen cover; 31. Feed inlet; 4. Fixing mechanism; 41. Gantry frame; 42. Fixing rod; 5. Switching mechanism; 51. Switch plate; 52. Screw; 53. Handwheel; 6. Support frame; 61. Frame body; 62. Rotating shaft; 63. Bracket; 64. Collection tray; 65. Protective cover; 7. Pushing mechanism; 71. Pushing plate; 72. Drive ring; 73. Handle; 74. Locking element; 741. Locking hook; 742. Locking ring; 75. Guide bar; 76. Guide rod; 77. Guide groove; 78. Guide hole. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 , Figure 2 As shown, a fully automatic aggregate screening tester includes a vibration table 1, a multi-layer sieve plate 2, a sieve cover 3, and a fixing mechanism 4.

[0033] like Figure 1 , Figure 2 As shown, the vibrating table 1 is horizontally set on the ground, and multiple screen trays 2 are stacked on the vibrating table 1. The screen cover 3 is fastened to the topmost screen tray 2, and the screen cover 3 is provided with a feed inlet 31. The fixing mechanism 4 is set on the vibrating table 1 and is used to press the screen cover 3.

[0034] like Figure 1 , Figure 2 As shown, the fixing mechanism 4 includes a gantry frame 41 and a fixing rod 42. The gantry frame 41 is mounted on the vibrating table 1 and spans the multi-layer screen tray 2. The fixing rod 42 is vertically threaded to the gantry frame 41, and its lower end is rotatably connected to the screen cover 3.

[0035] like Figure 3 , Figure 4 As shown, the screen plate 2 includes a frame 21 and a screen 22. The screen 22 is horizontally arranged in the middle of the frame 21, and the aperture decreases from top to bottom. At the same time, the bottom screen 22 is closed, realizing the stratified collection of multi-stage aggregates.

[0036] like Figure 3 , Figure 4 As shown, a discharge port 23 is provided in the middle of the screen 22, and a collection hopper 24 aligned with the discharge port 23 is provided on the lower end face. A collection pipe 25 is bent at the lower end of the collection hopper 24 and passes horizontally through the frame 21.

[0037] like Figure 3 , Figure 4 As shown, a switching mechanism 5 for controlling the opening and closing of the collection hopper 24 is provided on the frame 21. The switching mechanism 5 includes a switch plate 51, a screw 52, ​​and a handwheel 53. The switch plate 51 passes through the collection hopper 24 and is used to cover the discharge port 23. The screw 52 is horizontally threaded to the frame 21 and rotatably connected to the switch plate 51. The handwheel 53 is located at the outer end of the screw 52.

[0038] like Figure 1 , Figure 5 As shown, a support frame 6 is provided on the side of the vibration table 1. The support frame 6 includes a frame body 61, a rotating shaft 62, and multi-layer supports 63. The frame body 61 is vertically arranged, the rotating shaft 62 is vertically rotatably connected to the frame body 61, and the multi-layer supports 63 are distributed at intervals on the rotating shaft 62.

[0039] like Figure 5As shown, the support 63 is provided with multiple collection trays 64, and each layer of collection trays 64 is provided with multiple trays. The multiple collection trays 64 are evenly distributed around the support 63. After rotation, the collection trays 64 are located below each collection pipe 25 to realize the collection of aggregates after screening.

[0040] like Figure 5 As shown, the frame 61 is provided with multiple layers of C-shaped protective covers 65. The protective covers 65 allow the collection trays 64 of each layer to be rotated and inserted into them, and also allow a row of collection trays 64 of each layer to be located at the opening of the protective cover 65.

[0041] When the aggregate needs to be screened, the multi-layer screen discs 2 are stacked on the vibrating table 1, with the aperture of the screen discs 2 gradually decreasing from top to bottom. Then, the fixed rod 42 is rotated, which drives the screen cover 3 to move downward and gradually attach to the uppermost screen disc 2. Then, the aggregate is fed into the uppermost screen disc 2 through the feed inlet 31 on the screen cover 3.

[0042] Then, control the handwheel 53 to drive the screw 52 to rotate, and use the screw 52 to drive the switch plate 51 to slide horizontally, thereby covering and blocking the discharge port 23 on the screen 22. Then, start the vibrating table 1 to realize the vibration control of all screen plates 2, and realize the automatic screening of the aggregate.

[0043] After screening is complete, stop the vibrating table 1, then control the handwheel 53 to drive the screw 52 to rotate in the opposite direction. The screw 52 drives the switch plate 51 to slide in the opposite direction, thereby opening the discharge port 23 on the screen 22. At this time, the material on the screen 22 can slide outward along the collecting hopper 24 and collecting pipe 25, realizing the automatic discharge of the material.

[0044] Furthermore, during the material discharge process, the support frame 6 is pushed to the side of the vibrating table 1, and the rotating shaft 62 is controlled to rotate, so that the rotating shaft 62 drives the support 63 to rotate, and one row of collection trays 64 is located at the opening of the protective cover 65, and is located below each collection pipe 25, so that the screened material can be collected along the collection pipe 25 into the collection tray 64, achieving directional collection.

[0045] After one collection cycle, the system can be controlled to rotate, positioning the next collection tray 64 outside the protective cover 65 for the next batch of aggregate. Meanwhile, the remaining collection trays 64 are located inside the protective cover 65, protecting the aggregate and preventing external factors from affecting its quality, which is beneficial for accurate measurement later.

[0046] Therefore, by setting up a collection hopper 24 and a collection pipe 25 that can automatically guide the aggregate on each layer of screen 2, the aggregate on each layer of screen 2 can be guided and transported after screening, thereby realizing automatic cleaning and collection of the aggregate on screen 2, and enabling continuous screening of multiple batches of aggregate, thus improving test efficiency.

[0047] Meanwhile, a collection tray 64 is set up next to the vibrating table 1 to classify and collect the screened aggregate, so as to realize the orderly collection and stable storage of the screened aggregate, which is convenient for subsequent testing.

[0048] like Figure 3 , Figure 4 As shown, a groove 26 is provided on the inner side of the frame 21, and a pushing mechanism 7 is provided in the groove 26. The pushing mechanism 7 is used to push the material collected on the screen 22 to the discharge port 23. The pushing mechanism 7 includes a pushing plate 71, a drive ring 72, a handle 73, a locking member 74, a guide bar 75, and a guide rod 76.

[0049] like Figure 3 , Figure 4 As shown, the pusher plates 71 are arranged in a triangle, with their tips close to each other and abutting against each other to form a circle. The drive ring 72 is rotatably disposed in the groove 26 and presses against the pusher plates 71. The handle 73 is disposed on the outer wall of the drive ring 72, and the frame 21 is provided with a strip hole 27 for the handle 73 to slide.

[0050] like Figure 3 , Figure 4 As shown, the locking member 74 is used to fix the handle 73. The locking member 74 includes a locking hook 741 and a locking ring 742. The locking hook 741 is rotatably connected to the handle 73, and the locking ring 742 is disposed at both ends of the strip hole 27 and is hooked by the locking hook 741.

[0051] like Figure 3 , Figure 4 As shown, the guide bar 75 is horizontally disposed on the lower end face of the pusher plate 71, and the bottom wall of the groove 26 is provided with a guide groove 77 disposed along the tangential direction of the frame 21 and for the guide bar 75 to slide. The guide rod 76 is vertically disposed on the pusher plate 71, and the drive plate is provided with an arc-shaped guide hole 78 that radiates outward, for the guide rod 76 to slide.

[0052] When it is necessary to collect the aggregate on each layer of screen plate 2, first release the locking hook 741 from the locking ring 742, and then control the handle 73 to reciprocate. At this time, the handle 73 drives the drive ring 72 to rotate. Under the combined action of the guide rod 76, the guide hole 78, the guide bar 75, and the guide groove 77, control all the push plates 71 to gather together or open together, and push the aggregate around the screen 22 to the discharge port 23 to achieve rapid collection of the aggregate.

[0053] Therefore, by setting a pushing mechanism 7 on the screen plate 2, the material collected around the screen plate 2 is pushed to the middle position and discharged outward along the collection hopper 24 and collection pipe 25, thereby improving the collection efficiency of the material.

[0054] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fully automatic aggregate sieving tester, characterized in that: include: A vibration table (1) is set horizontally on the ground; Multi-layer sieve trays (2) are stacked on the vibrating table (1); A screen cover (3) is fastened onto the uppermost screen plate (2), and a feed inlet (31) is provided on the screen cover (3); A fixing mechanism (4) is installed on the vibration table (1) and is used to press the screen cover (3); The sieve tray (2) includes a frame (21) and a sieve (22). The sieve (22) is horizontally arranged in the middle of the frame (21), and the aperture decreases from top to bottom. The bottommost sieve (22) is closed. The screen (22) has a discharge port (23) in the middle and a collection hopper (24) aligned with the discharge port (23) on its lower end. The lower end of the collection hopper (24) is bent to provide a collection pipe (25). The collection pipe (25) passes horizontally through the frame (21). The frame (21) is provided with a switch mechanism (5) for controlling the opening and closing of the collection hopper (24). The inner side of the frame (21) is provided with a groove (26), and a pushing mechanism (7) is provided in the groove (26). The pushing mechanism (7) is used to push the material on the screen (22) to the outlet (23). The pushing mechanism (7) includes a pushing plate (71), a drive ring (72), a handle (73), a locking element (74), a guide strip (75), and a guide rod (76). The pushing plate (71) is triangular in shape, with its apexes close to each other and abutting against each other to form a circle. The drive ring (72) is rotatably disposed in the groove (26) and presses against the pushing plate (71). The handle (73) is disposed on the outer wall of the drive ring (72). The frame (21) is provided with a strip hole for the handle (73) to slide. (27) The locking member (74) is used to fix the handle (73), the guide bar (75) is arranged horizontally on the lower end face of the pusher plate (71), the bottom wall of the groove (26) is provided with a guide groove (77) arranged along the tangential direction of the frame (21) and for the guide bar (75) to slide, the guide rod (76) is arranged vertically on the pusher plate (71), the drive ring (72) is provided with an arc-shaped guide hole (78) that is arranged outward, and the guide hole (78) is for the guide rod (76) to slide; The locking element (74) includes a locking hook (741) and a locking ring (742). The locking hook (741) is rotatably connected to the handle (73), and the locking ring (742) is disposed at both ends of the strip hole (27) and is hooked by the locking hook (741).

2. The fully automatic aggregate sieving tester according to claim 1, characterized in that: The switching mechanism (5) includes a switch plate (51), a screw (52) and a handwheel (53). The switch plate (51) passes through the collection hopper (24) and is used to cover the discharge port (23). The screw (52) is horizontally threaded to the frame (21) and rotatably connected to the switch plate (51). The handwheel (53) is located at the outer end of the screw (52).

3. The fully automatic aggregate sieving tester according to claim 1, characterized in that: The fixing mechanism (4) includes a gantry frame (41) and a fixing rod (42). The gantry frame (41) is set on the vibrating table (1) and spans multiple layers of the screen plates (2). The fixing rod (42) is vertically threaded to the gantry frame (41) and its lower end is rotatably connected to the screen cover (3).

4. The fully automatic aggregate sieving tester according to claim 1, characterized in that: A support frame (6) is provided on the side of the vibration table (1), and a multi-layer collection tray (64) is provided on the support frame (6), with the collection tray (64) located below each collection tube (25).

5. The fully automatic aggregate sieving tester according to claim 4, characterized in that: The support frame (6) includes a frame body (61), a rotating shaft (62), and multiple support layers (63). The frame body (61) is vertically arranged, and the rotating shaft (62) is vertically rotatably connected to the frame body (61). Multiple support layers (63) are spaced apart on the rotating shaft (62). Each layer of the collection tray (64) is provided with multiple trays, which are evenly distributed around the support layers (63).

6. The fully automatic aggregate sieving tester according to claim 5, characterized in that: The frame (61) is provided with multiple layers of C-shaped protective covers (65), which are embedded in the collection trays (64) of each layer, and also allow a row of collection trays (64) of each layer to be located at the opening of the protective cover (65).

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