Quick-release screen structure of feed processing equipment

Abstract

The utility model relates to the technical field of feed processing, in particular to a quick-release type screen structure of feed processing equipment, which comprises a barrel and a screen arranged in the barrel, the inner wall of the barrel is provided with a limit groove extending axially, the screen is fixed on a screen fixing frame, and the limit groove is provided with a limit groove. Limiting protrusions in sliding fit with the limiting grooves are arranged on the outer side of the screen fixing frame. Through the sliding fit design of the screen fixing frame and the barrel limiting groove, when the single face of the screen is abraded, only the barrel needs to be turned over by 180 degrees, the screen fixing frame can automatically slide downwards to be repositioned under the action of gravity, turning-over reuse of the screen is achieved, the high cost and shutdown loss caused by overall replacement of the screen due to single face abrasion in a traditional structure are avoided, and the service life of the screen is prolonged. The service life of the screen is obviously prolonged; the production continuity is improved; and meanwhile, the screen forms a stable screening space with the barrel after sliding down, and the materials are effectively enclosed by utilizing the inherent depth of the barrel.

Description

A quick-release screen structure for feed processing equipment Technical Field

[0001] This utility model relates to the field of feed processing technology, specifically to a quick-release screen structure for feed processing equipment. Background Technology

[0002] In the operation of feed processing equipment, the screen structure, as a key component for achieving precise material screening, directly affects production efficiency and material loss control. With the advancement of large-scale and continuous production in feed processing, the durability of the screen and the stability of material holding capacity during screening have become key concerns in the industry.

[0003] Currently, most feed processing equipment uses a fixed screen installation structure, where the screen is fixed to a specific position inside the cylinder by welding, bolting, or other methods. This method has significant drawbacks: Firstly, the screen is subjected to material impact and friction over a long period. When one side is severely worn, the machine must be stopped for disassembly and replacement, increasing the cost of screen consumables and disrupting the production process, thus reducing overall production efficiency. Secondly, the fixed installation means the screen's position inside the cylinder is constant. When attempting to flip the worn screen, the cylinder's structure cannot be used to adaptively adjust the screen's position. Specifically, during normal screening, the screen is located at the lower part of the cylinder, creating a screening space of sufficient depth to accommodate materials and prevent leakage. However, after flipping, if the screen cannot automatically adjust to the lower part of the cylinder, the screening space above the screen is insufficient in depth. During screening vibration, materials easily leak from the gap between the screen edge and the cylinder, resulting in material waste and pollution around the equipment. Summary of the Invention

[0004] This application provides a quick-release screen structure for feed processing equipment. Through a sliding installation design, when the screen is worn and flipped over, it can slide down to the lower part of the cylinder by gravity, restoring the screening space depth. This not only extends the service life of the screen and reduces replacement costs, but also prevents material leakage, achieving efficient and stable screening.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a quick-release screen structure for feed processing equipment, including a cylinder and a screen disposed inside the cylinder. The inner wall of the cylinder is provided with a limiting groove extending axially. The screen is fixed on a screen fixing frame. The outer side of the screen fixing frame is provided with a limiting protrusion that slides with the limiting groove. When the cylinder is rotated 180°, the screen fixing frame drives the screen to slide down along the limiting groove to a lower position of the cylinder under the action of gravity, thus reforming a screening space with a preset depth.

[0007] Furthermore, a sealing frame is detachably connected to the bottom of the cylinder, which is used to seal the opening of the limiting groove; the upper end of the cylinder is provided with a positioning groove that cooperates with the positioning post on the sealing frame, for positioning the sealing frame during installation.

[0008] Furthermore, a mounting bracket is fixedly connected to the outer side of the cylinder, and a sliding frame is slidably connected to the mounting bracket. An elastic element is provided between the sliding frame and the mounting bracket. A fixing column is fixedly provided on the sliding frame, and a fixing groove that mates with the fixing column is opened on the top of the sealing frame. The elastic force of the elastic element is used to drive the fixing column to insert into the fixing groove.

[0009] Furthermore, the outer side of the sliding frame is provided with a protrusion, and a rotating hook is hinged on the mounting frame. The rotating hook can hook the protrusion to limit the sliding stroke of the sliding frame.

[0010] Furthermore, the outer side of the cylinder is connected to a self-locking rotating seat via a rotating shaft. The self-locking rotating seat is fixedly installed on a support structure, which is used to realize the rotation and locking positioning of the cylinder.

[0011] Furthermore, the length of the limiting groove is not less than 1 / 2 of the axial length of the cylinder to ensure that the screen fixing frame has sufficient sliding stroke.

[0012] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0013] Through the sliding fit design between the screen fixing frame and the cylinder limiting groove, when one side of the screen is worn, the cylinder only needs to be rotated 180°, and the screen fixing frame can automatically slide down and reposition itself under the action of gravity, realizing the reuse of the screen. This avoids the high cost and downtime loss of replacing the entire screen due to wear on one side in the traditional structure, significantly extending the service life of the screen and improving production continuity. At the same time, after the screen slides down, it forms a stable screening space with the cylinder, and the inherent depth of the cylinder is used to effectively contain the material. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of the structure of this utility model;

[0016] Figure 2 is a cross-sectional view of this utility model;

[0017] Figure 3 is an enlarged view of point A in Figure 2;

[0018] Figure 4 is a schematic diagram of the sealing frame of this utility model.

[0019] Reference numerals: 10, cylinder; 11, limiting groove; 20, screen fixing frame; 21, limiting protrusion; 22, screen; 30, sealing frame; 31, positioning post; 32, fixing groove; 40, mounting frame; 41, sliding frame; 42, elastic element; 43, fixing post; 44, protrusion; 45, rotating hook; 50, rotating shaft; 51, self-locking rotating seat; 52, support frame. Detailed Implementation

[0020] Example: Referring to Figures 1 to 4, a quick-release screen structure for feed processing equipment includes:

[0021] Cylinder 10: It is a vertical cylinder with multiple limiting grooves 11 evenly distributed along the axial direction on the inner wall. The length of the limiting grooves 11 is 2 / 3 of the axial length of the cylinder, which is used to provide sliding guidance for the screen fixing frame 20.

[0022] Screen fixing frame 20: It has a ring frame structure with limiting protrusions 21 on the outer side that correspond one-to-one with the limiting grooves 11. The two are fitted together to form a sliding pair. The screen 22 is fixedly installed on the inner side. The screen 22 is made of metal woven mesh and the mesh size is customized according to the screening requirements. The screen fixing frame 20 can move freely along the axis of the cylinder 10 through the sliding fit between the limiting protrusions 21 and the limiting grooves 11. When it is flipped, it automatically slides down under the action of gravity.

[0023] The sealing frame 30 is a ring-shaped plate structure that is detachably connected to the cylinder 10. It is used to seal the opening of the limiting groove 11 to prevent material from entering the limiting groove 11 and affecting the sliding. The upper surface of the sealing frame 30 is provided with a positioning post 31, which cooperates with the positioning groove at the upper end of the cylinder 10 (not shown) to achieve quick positioning during installation. When the sealing frame 30 is installed, the positioning post 31 is inserted into the positioning groove at the upper end of the cylinder 10 without the need for additional bolts. The fixing post 43 of the sliding frame 41 is inserted into the fixing groove 32 of the screen fixing frame 20 under the action of the elastic element 42 to achieve quick positioning of the sealing frame 30 and the cylinder 10.

[0024] Mounting bracket 40: Fixed to the outer wall of cylinder 10, it has an "L" shaped structure and its horizontal section has a sliding groove, which is slidably connected to the sliding bracket 41.

[0025] Sliding bracket 41: It slides and is limited by the sliding groove and the mounting bracket 40. It has a protrusion 44 on the outside and is connected to one end of the elastic element 42 on the inside (the elastic element 42 can be a compression spring).

[0026] Elastic element 42: It is disposed between the sliding frame 41 and the mounting frame 40. In its natural state, it provides elastic force towards the cylinder 10, driving the fixed column 43 on the sliding frame 41 to insert into the fixed groove 32 at the top of the screen fixing frame 20.

[0027] The outer side of the cylinder 10 is connected to the self-locking rotating seat 51 via the rotating shaft 50. The self-locking rotating seat 51 is fixed to the equipment support structure (such as the frame). The existing ratchet pawl or pin self-locking structure is used to achieve locking after the cylinder is rotated 180°.

[0028] The working principle of this utility model is as follows:

[0029] 1. Normal screening state: The cylinder 10 is vertically fixed, and the screen fixing frame 20 slides down to the bottom of the cylinder along the limiting groove 11 under the action of gravity. At this time, the fixing column 43 is fully inserted into the fixing groove 32 under the pushing action of the elastic element 42, locking the screen fixing frame 20 in the lower position; a stable screening space is formed above the screen 22 (the height is determined by the depth of the cylinder 10 and the position of the screen 22). The material is poured in from the top of the cylinder 10. During the screening process, the screening space has a certain depth to prevent the material from spilling out.

[0030] 2. Screen flipping operation: Flipping cylinder: Release the temporary lock of the self-locking rotating seat 51 if there is one, manually or mechanically drive the cylinder 10 to rotate 180° around the rotating axis 50, and automatically lock the new position (original bottom facing up, top facing down); Automatic screen sliding: After the screen fixing frame 20 flips with the cylinder 10, it slides along the limiting groove 11 towards the new bottom direction under the action of gravity (the sliding distance is determined by the length of the limiting groove) until the limiting protrusion 21 reaches the bottom of the groove.

[0031] 3. Screen replacement operation (unlocking required): When the screen 22 is worn on both sides and needs to be replaced, pull the sliding frame 41 outward to disengage the fixed column 43 from the fixed groove 32, and at the same time rotate the hook 45 to hook the protrusion 44 to restrict the sliding frame 41 from falling back; remove the sealing frame 30, take out the screen fixing frame 20, replace the new screen, and then install and reset it in reverse order.

[0032] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A quick-release screen structure for a feed processing equipment, comprising a cylinder (10) and a screen (22) disposed within the cylinder, characterized in that: The inner wall of the cylinder (10) is provided with a limiting groove (11) extending along the axial direction. The screen (22) is fixed on the screen fixing frame (20). The outer side of the screen fixing frame (20) is provided with a limiting protrusion (21) that slides with the limiting groove (11). When the cylinder (10) is rotated 180°, the screen fixing frame (20) drives the screen (22) to slide down along the limiting groove (11) to a lower position of the cylinder (10) under the action of gravity, and a screening space with a preset depth is formed again.

2. The quick-release screen structure according to claim 1, characterized in that: The bottom of the cylinder (10) is detachably connected to a sealing frame (30), which is used to seal the opening of the limiting groove (11); the upper end of the cylinder (10) is provided with a positioning groove that cooperates with the positioning post (31) on the sealing frame (30), which is used for positioning the sealing frame (30) during installation.

3. The quick-release screen structure according to claim 2, characterized in that: An installation frame (40) is fixedly connected to the outside of the cylinder (10). A sliding frame (41) is slidably connected to the installation frame (40). An elastic element (42) is provided between the sliding frame (41) and the installation frame (40). A fixing post (43) is fixedly provided on the sliding frame (41). A fixing groove (32) that cooperates with the fixing post (43) is opened on the top of the sealing frame (30). The elastic force of the elastic element (42) is used to drive the fixing post (43) to insert into the fixing groove (32).

4. The quick-release screen structure according to claim 3, characterized in that: The sliding frame (41) has a protrusion (44) on its outer side, and a rotating hook (45) is hinged on the mounting frame (40). The rotating hook (45) can hook the protrusion (44) to limit the sliding stroke of the sliding frame (41).

5. The quick-release screen structure according to claim 1, characterized in that: The outer side of the cylinder (10) is connected to the self-locking rotating seat (51) via a rotating shaft (50). The self-locking rotating seat (51) is fixedly installed on the support structure, which is used to realize the flipping and locking positioning of the cylinder (10).

6. The quick-release screen structure according to claim 1, characterized in that: The length of the limiting groove (11) is not less than 1 / 2 of the axial length of the cylinder (10) to ensure that the screen fixing frame (20) has sufficient sliding stroke.

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