High square flat sieve for wheat milling

By introducing a clamping mechanism and support frame into the high-square flat screen, the problem of inconvenient disassembly caused by screen blockage is solved, achieving the effect of quick cleaning and reducing damage to the steel cable.

CN224525238UActive Publication Date: 2026-07-21XINJIANG TACHENG GREEN GRAIN & OIL STORAGE GRP FLOUR PROCESSING LTD CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG TACHENG GREEN GRAIN & OIL STORAGE GRP FLOUR PROCESSING LTD CO
Filing Date
2025-07-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing high-square flat screens are prone to clogging after prolonged use, making disassembly inconvenient and affecting cleaning efficiency.

Method used

A high-square flat screen including a clamping mechanism and a support frame was designed. The clamping mechanism allows for quick disassembly of the screen grids, and the hydraulic cylinder and support frame reduce the tension of the steel cables, simplifying the screen grid disassembly process.

Benefits of technology

It enables quick disassembly and cleaning of the screen, reduces equipment downtime, improves operating efficiency, and reduces the risk of steel cable breakage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224525238U_ABST
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Abstract

The utility model discloses a high square flat sieve for wheat milling, including mount, the inner top of mount is fixedly connected with a plurality of steel cable, the end between a plurality of steel cable is fixedly installed with two sieve boxes, two sieve boxes between fixed mounting has the connecting frame, the top fixed mounting of connecting frame has vibration motor, two sieve boxes all place with a plurality of sieve frame, be equipped with the abutting mechanism between connecting frame and sieve frame, the abutting mechanism includes the sliding slot of being passed through and being arranged on the connecting frame, the sliding groove is slidably connected with the sliding plate in the sliding groove, the inner top rotationally connected with the threaded rod of sliding slot, the threaded rod is passed through the bottom of connecting frame and is rotatably connected with it. The utility model discloses structural design is reasonable, when the operator needs to clean the flour that blocks on the sieve frame, can quickly dismantle the sieve frame that piles up, and the flour that the operator is convenient for to clean the block on the sieve frame.
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Description

Technical Field

[0001] This utility model relates to the field of wheat milling technology, and in particular to a high-square flat sieve for wheat milling. Background Technology

[0002] The high-square flat sieve is the main equipment for sieving flour. It is used to sieve a mixture of wheat of different sizes and qualities after it has been ground by a grinding system. The mixture is then sieved through a specific sieving route composed of multiple sieves to extract flour. It is also used to sieve and classify other coarser materials.

[0003] In existing technologies, after prolonged use, some flour may become clogged in the sieve grids of a high-square flat sieve. At this time, the operator needs to disassemble the sieve to clean the clogged flour. However, the various sieve grids on the high-square flat sieve are fixed together by multiple screws. When disassembling the sieve grids, the operator needs to use screwdrivers and other tools to remove the screws on each sieve grid, which is quite inconvenient. Therefore, we have designed a high-square flat sieve for wheat milling to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a high-square flat sieve for wheat milling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-square flat sieve for wheat milling includes a mounting frame. Multiple steel cables are fixedly connected to the inner top of the mounting frame. Two sieve boxes are fixedly installed between the ends of the steel cables. A connecting frame is fixedly installed between the two sieve boxes. A vibrating motor is fixedly installed on the top of the connecting frame. Multiple sieve grids are placed inside each of the two sieve boxes. A clamping mechanism is provided between the connecting frame and the sieve grids. The clamping mechanism includes a sliding groove extending through the connecting frame. A sliding plate is slidably connected through the sliding groove. A threaded rod is rotatably connected to the inner top of the sliding groove. The threaded rod extends through the bottom of the connecting frame and is rotatably connected thereto. A rotating handle is fixedly installed at the bottom end of the threaded rod. Four connecting rods are fixedly installed on the top of the sliding plate. A pressure plate is fixedly installed at the top ends of two opposing connecting rods. Two first insert rods are fixedly installed at the bottom of the pressure plate. Second connecting plates are fixedly installed on both side walls of the uppermost sieve grid. Insertion holes are extending through the second connecting plates. The bottom of the pressure plate abuts against the top of the second connecting plate. The first insert rods extend into the opposing insertion holes.

[0007] Preferably, a plurality of second insert rods are fixedly installed on the top of the sieve grid, and a plurality of slots are provided on the bottom of the sieve grid, with each slot extending into the corresponding second insert rod and abutting against its inner top.

[0008] Preferably, a plurality of limiting rods are fixedly installed at the inner bottom of the sieve box.

[0009] Preferably, the sidewall of the lowest sieve is fixedly fitted with multiple sleeves, and the multiple limiting rods all pass through the opposing sleeves.

[0010] Preferably, two support frames are fixedly installed on the side wall of the sieve box.

[0011] Preferably, a hydraulic cylinder is fixedly mounted on the mounting bracket, a first connecting plate is fixedly mounted on the telescopic end of the hydraulic cylinder, and multiple support plates are fixedly mounted on the top of the first connecting plate.

[0012] Preferably, a discharge hopper is fixedly installed at the bottom of the screen box.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. With the setting of the clamping mechanism, when the operator needs to clean the flour clogging the sieve, the stacked sieve can be quickly disassembled, making it convenient for the operator to clean the flour clogging the sieve.

[0015] 2. With the support frame, hydraulic cylinder, first connecting plate and support plate set up, when the device is stopped and not in use, the operator starts the hydraulic cylinder to extend and drive the support plate on the first connecting plate to move upward, so that the support plate is pressed against the bottom of the opposite support frame. The support plate supports the screen box through the support frame, reducing the tension on the steel cable and reducing the occurrence of its breakage due to tension.

[0016] In summary, the present invention has a reasonable structural design. When the operator needs to clean the flour clogged by the sieve grid, the stacked sieve grid can be quickly disassembled, making it convenient for the operator to clean the flour clogged by the sieve grid. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first state structure of a high-square flat sieve for wheat milling proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the second state structure of a high-square flat sieve for wheat milling proposed in this utility model;

[0019] Figure 3 This is a side view of the structure of a high-square flat sieve for wheat milling proposed in this utility model;

[0020] Figure 4 This is a top view of the structure on the sieve box;

[0021] Figure 5 This is a cross-sectional view of the structure on the sieve box;

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the image.

[0023] In the diagram: 1. Mounting frame; 2. Steel cable; 3. Screen box; 4. Connecting frame; 5. Vibration motor; 6. Support frame; 7. Hydraulic cylinder; 8. First connecting plate; 9. Support plate; 10. Sliding groove; 11. Sliding plate; 12. Threaded rod; 13. Rotating handle; 14. Connecting rod; 15. Pressure plate; 16. First insert rod; 17. Screen grid; 18. Second connecting plate; 19. Insertion hole; 20. Limiting rod; 21. Sleeve; 22. Slot; 23. Second insert rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A high-square flat sieve for wheat milling includes a mounting frame 1. Multiple steel cables 2 are fixedly connected to the inner top of the mounting frame 1. Two sieve boxes 3 are fixedly installed between the ends of the steel cables 2. A discharge hopper is fixedly installed at the bottom of each sieve box 3. A connecting frame 4 is fixedly installed between the two sieve boxes 3. A vibrating motor 5 is fixedly installed at the top of the connecting frame 4. Multiple sieve grids 17 are placed inside each of the two sieve boxes 3. Multiple second insert rods 23 are fixedly installed at the top of each sieve grid 17. Multiple slots 22 are opened at the bottom of each sieve grid 17, extending into the corresponding second insert rods 23 and abutting against their inner tops. Multiple limiting rods 20 are fixedly installed at the inner bottom of each sieve box 3. Multiple sleeves 21 are fixedly installed on the side wall of the lowest sieve grid 17, with the limiting rods 20 penetrating the corresponding sleeves 21. The connecting frame 4 and the sieve grid 17 are connected. A clamping mechanism is provided between the components. The clamping mechanism includes a sliding groove 10 that passes through the connecting frame 4. A sliding plate 11 is slidably connected through the sliding groove 10. A threaded rod 12 is rotatably connected to the top of the sliding groove 10. The threaded rod 12 passes through the bottom of the connecting frame 4 and is rotatably connected to it. A rotating handle 13 is fixedly installed at the bottom of the threaded rod 12. Four connecting rods 14 are fixedly installed at the top of the sliding plate 11. A pressure plate 15 is fixedly installed at the top of two opposite connecting rods 14. Two first insert rods 16 are fixedly installed at the bottom of the pressure plate 15. Second connecting plates 18 are fixedly installed on both side walls of the uppermost sieve grid 17. Insertion holes 19 are opened through the second connecting plate 18. The bottom of the pressure plate 15 abuts against the top of the second connecting plate 18. The first insert rods 16 extend into the opposite insertion holes 19.

[0026] With the clamping mechanism in place, when the operator needs to clean the flour clogging the sieve 17, the stacked sieve 17 can be quickly disassembled, making it convenient for the operator to clean the flour clogging the sieve 17.

[0027] Two support frames 6 are fixedly installed on the side wall of the screen box 3. A hydraulic cylinder 7 is fixedly installed on the mounting frame 1. A first connecting plate 8 is fixedly installed on the telescopic end of the hydraulic cylinder 7. Multiple support plates 9 are fixedly installed on the top of the first connecting plate 8.

[0028] With the support frame 6, hydraulic cylinder 7, first connecting plate 8 and support plate 9 in place, when the device is not in use, the operator starts the hydraulic cylinder 7 to extend and drive the support plate 9 on the first connecting plate 8 to move upward, so that the support plate 9 is pressed against the bottom of the opposite support frame 6. The support plate 9 supports the screen box 3 through the support frame 6, reducing the tension on the steel cable 2 and reducing the occurrence of its breakage due to tension.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] Equipment startup process

[0031] Startup order

[0032] First, start the hydraulic cylinder 7 to retract, so that the support plate 9 is separated from the support frame 6, ensuring that the screen box 3 is completely suspended by the steel cable 2.

[0033] Turn on the vibration motor 5 and observe whether the equipment runs smoothly and whether there is any abnormal vibration or noise. If the screen box 3 is found to be shaking violently, the machine should be stopped immediately to check the tension of the steel cable or whether the screen grid 17 is installed symmetrically.

[0034] Feeding and Operation

[0035] The ground wheat mixture is fed evenly into the sieve box 3 through the feeding device. Care should be taken to control the feed flow rate to ensure stability and prevent the sieve grid 17 from clogging.

[0036] After the material is sieved through screen 17, the flour falls through the sieve holes and is discharged through the discharge hopper.

[0037] Sieve cleaning operation

[0038] Disassembly preparation

[0039] If sieve 17 is found to be clogged, causing a decrease in screening efficiency, stop the machine and disconnect the power supply.

[0040] Unlocking the locking mechanism

[0041] Rotate the handle 13 at the bottom of the threaded rod 12 to make the threaded rod 12 rotate upward, causing the sliding plate 11 to slide upward in the sliding groove 10.

[0042] The sliding plate 11 drives the pressure plate 15 to rise through the connecting rod 14, and the first insert rod 16 is pulled out from the insertion hole 19 of the second connecting plate 18, releasing the tight fixation of the uppermost sieve.

[0043] Sieve disassembly

[0044] Remove each layer of sieve 17 sequentially upwards: Since the second insert rod 23 at the top of the sieve 17 is plugged into the lower slot 22, the sieve 17 can be lifted manually directly.

[0045] If sieve 17 is severely clogged, gently tap the edge of sieve 17 to loosen the flour before disassembling it. Avoid using excessive force to prevent damage to the sieve.

[0046] Cleaning and Installation

[0047] Clean the surface of sieve 17 and the flour inside the sieve holes with a soft brush or compressed air to ensure that the sieve holes are unobstructed; check the sieve for any damage and replace it in time if there is any damage.

[0048] Install the sieve in reverse order, ensuring that the second insert rod 23 is inserted into the lower slot 22. Finally, press down the pressure plate 15 through the clamping mechanism to insert the first insert rod 16 into the insertion hole 19, and rotate the threaded rod 12 to clamp the sieve.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-square flat sieve for wheat milling, comprising a mounting frame (1), characterized in that, Multiple steel cables (2) are fixedly connected to the inner top of the mounting frame (1). Two screen boxes (3) are fixedly installed between the ends of the multiple steel cables (2). A connecting frame (4) is fixedly installed between the two screen boxes (3). A vibration motor (5) is fixedly installed on the top of the connecting frame (4). Multiple screen grids (17) are placed in each of the two screen boxes (3). A clamping mechanism is provided between the connecting frame (4) and the screen grids (17). The clamping mechanism includes a sliding groove (10) extending through the connecting frame (4). A sliding plate (11) is slidably connected through the sliding groove (10). A threaded rod (12) is rotatably connected to the top of the sliding groove (10). The threaded rod (12) extends through the bottom of the connecting frame (4) and is rotatably connected thereto. A rotating handle (13) is fixedly installed at the bottom end of the threaded rod (12). Four connecting rods (14) are fixedly installed on the top of the sliding plate (11), two of which are opposite to each other. A pressure plate (15) is fixedly installed at the top of the connecting rod (14). Two first insert rods (16) are fixedly installed at the bottom of the pressure plate (15). A second connecting plate (18) is fixedly installed on both side walls of the uppermost sieve (17). An insertion hole (19) is opened through the second connecting plate (18). The bottom of the pressure plate (15) abuts against the top of the second connecting plate (18). The first insert rods (16) extend into the corresponding insertion holes (19).

2. The high-square flat sieve for wheat milling according to claim 1, characterized in that, The top of the sieve (17) is fixedly equipped with a plurality of second insert rods (23), and the bottom of the sieve (17) is provided with a plurality of slots (22), and the plurality of slots (22) extend into the opposite second insert rods (23) and abut against their inner tops.

3. The high-square flat sieve for wheat milling according to claim 1, characterized in that, Multiple limiting rods (20) are fixedly installed on the inner bottom of the sieve box (3).

4. A high-square flat sieve for wheat milling according to claim 3, characterized in that, The side wall of the sieve (17) located at the bottom is fixedly installed with multiple sleeves (21), and multiple limiting rods (20) pass through the opposite sleeves (21).

5. A high-square flat sieve for wheat milling according to claim 1, characterized in that, Two support frames (6) are fixedly installed on the side wall of the sieve box (3).

6. A high-square flat sieve for wheat milling according to claim 1, characterized in that, A hydraulic cylinder (7) is fixedly installed on the mounting bracket (1). A first connecting plate (8) is fixedly installed on the telescopic end of the hydraulic cylinder (7). A plurality of support plates (9) are fixedly installed on the top of the first connecting plate (8).

7. A high-square flat sieve for wheat milling according to claim 1, characterized in that, A discharge hopper is fixedly installed at the bottom of the screen box (3).