Classified screening device

Abstract

The utility model relates to the technical field of feed additives, and provides a grading screening device which comprises a main plate, a screening mechanism is arranged on the upper portion of the main plate, an electric push rod is arranged, and the output end of the electric push rod pushes and pulls a second connecting block, so that the second connecting block drives a guide rod to obliquely move upwards and downwards under the limiting effect of a guide groove; according to the feed additive screening device, the screening frame is arranged, so that feed additives in the screening frame can swing up and down back and forth, then the feed additives in the screening frame can be evenly screened, and the situation that the feed additives are stacked during screening due to the fact that one side is high or low is avoided; and feed additives with different particle sizes can be screened in a classified mode conveniently, and blockage of the feed additives can be avoided in an up-and-down swinging screening mode. By means of the technical scheme, the problems that in the prior art, accumulation, sputtering and blocking are likely to happen when feed additives are screened in a classified mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of feed additives, and in particular to a grading and screening device. Background Art

[0002] Feed additives are raw materials that must be used in the modern feed industry. They have obvious effects on enhancing the nutritional value of basic feed, improving animal production performance, ensuring animal health, saving feed costs, and improving the quality of livestock products.

[0003] During the production process of feed additives, it is usually necessary to screen and grade the feed additives so that the feed additives can be graded and screened according to the different particle sizes, so as to avoid the impact of the amount of feed additives used on the health of animals.

[0004] In the prior art, the utility model with the authorization announcement number CN207546973U is named: a feed additive screening device. The device proposed in the patent document is that when the feed additive particles can enter the first feed trough from the discharge port of the upper hopper, the feed additive particles will slide downward, and at the same time, the feed additive particles will enter the second feed trough from the first feed guide port, and then, the small particles of feed additive will enter the third feed trough from the second feed guide port, and the screening and grading are carried out in this way. The whole screening process realizes full automatic operation, and the implementation reliability is strong;

[0005] In the prior art, there is a utility model with the authorization announcement number CN219880521U, which is named: A feed additive screening and classifying device. The device proposed in the patent document is provided with multiple screening devices, and the apertures of the screens in the multiple screening devices are successively reduced from top to bottom. The reciprocating motion of the screening devices causes the feed additives to fall layer by layer, so that feed additives of different particle sizes are left on different layers of screens, so as to achieve simultaneous classification of feed additives of multiple particle sizes;

[0006] However, although the devices proposed in the above two patent documents can facilitate the classification of feed additives, in actual use, when the feed is poured and screened, it is easy to cause the additives to be blocked at the screening port, and the feed additives are easy to splash to the outside during screening, and the feed additives are easy to accumulate on one side when the screening is tilted, affecting the screening effect. Utility Model Content

[0007] The utility model provides a grading and screening device, which solves the problem in the related art that feed additives are prone to accumulation, splashing and clogging during grading and screening.

[0008] The technical solution of the utility model is as follows: it includes a main board, a screening mechanism is provided on the upper part of the main board, the screening mechanism includes an L-shaped fixing plate fixedly connected to the outer surface of the main board, three first connecting blocks, and an electric push rod hinged to the first connecting blocks through a pin shaft, and the outer surfaces of the three first connecting blocks are fixedly connected to the right side surface of the L-shaped fixing plate.

[0009] Three screening frames are provided on the upper part of the main board, and two fixed blocks are fixedly connected to the left and right sides of the screening frames, and the side surfaces of each group of the fixed blocks close to each other are rotatably connected to a guide rod, and two groups of guide plates are fixedly connected to the upper surface of the main board, and the outer surface of each guide plate is provided with three guide grooves for guiding the guide rod, and the inner wall of the guide groove is slidably connected to the outer surface of the guide rod on the same side, and the output ends of the three electric push rods are hinged with a second connecting block through a pin shaft, and the inner wall of the second connecting block is rotatably connected to the outer surface of the guide rod on the same side.

[0010] Preferably, each of the guide rods is fixedly connected to a baffle at both ends, and the baffle is located outside the guide plate. By providing the baffle, it is easier to limit and block the guide rod, so that the screening frame and the guide rod can slide stably in the guide groove, thereby greatly improving the stability of the screening frame when swinging horizontally.

[0011] Preferably, connecting holes are provided at the four corners of the upper surfaces of the three screening frames, and four clamping rods are provided on the upper part of the main board, and the clamping rods are clamped with the connecting holes. By setting the connecting holes and the clamping rods, multiple screening frames can be better connected, thereby facilitating synchronous swing screening and avoiding offset during screening that affects the screening effect of feed additives.

[0012] Preferably, the inner bottom walls of the three screening frames are respectively provided with a first screening hole, a second screening hole, and a third screening hole, and the first screening hole is located above the second screening hole, and the second screening hole is located above the third screening hole. By setting the first screening hole, the second screening hole and the third screening hole, it is possible to better facilitate the screening and separation of feed additives of different particle sizes, so that smaller particles fall into subsequent collection areas in turn.

[0013] Preferably, the front sides of the three screening frames are hinged with doors, and the front sides of the doors are fixedly connected with a first handle. By providing the doors, it is easier to take out the screened materials stored in the screening frames, thereby making it easier for staff to collect and utilize feed additives of different particle sizes, greatly improving the practicability of the overall device.

[0014] Preferably, a collecting frame is placed on the upper surface of the main board, and a second handle is fixedly connected to the right side of the collecting frame. By providing the collecting frame, it is easier to collect and store the graded and screened fine feed additives, and the second handle makes it easier for the staff to pull out the collecting frame, thereby facilitating the staff to take out the graded and screened materials in the collecting frame.

[0015] Preferably, a material guide frame is provided on the upper part of the main board, and the upper surface of the material guide frame is fixedly connected to the bottom surface of the screening frame on the same side. The material guide frame is located on the upper part of the collecting frame. By providing the material guide frame, it is possible to better facilitate the limited discharge of the screened feed additives and accurately discharge them into the subsequent collection area.

[0016] Preferably, support legs are fixedly connected to the four corners of the bottom surface of the mainboard, and foot pads are fixedly connected to the lower ends of the support legs. By providing the support legs, the overall device can be better placed, thereby greatly improving the stability of the overall device.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. In the utility model, an electric push rod is provided, and the output end of the electric push rod pushes and pulls the second connecting block, so that the second connecting block drives the guide rod to move up and down obliquely under the limiting action of the guide groove, so that the feed additives in the screening frame can be swung back and forth up and down, so that the feed additives in the screening frame can be screened evenly, and the accumulation of the feed additives during screening caused by one side being high or low can be avoided. In addition, the first screening hole, the second screening hole and the third screening hole can be arranged to facilitate the graded screening of feed additives with different particle sizes, thereby greatly improving the effect of graded screening of feed additives, and the clogging of feed additives can also be avoided by the screening method of swinging up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the screening mechanism of the utility model;

[0021] Figure 2 It is a three-dimensional structural cross-sectional view of the second screening hole of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the clamping rod of the utility model;

[0023] Figure 4 For this utility model Figure 1 A local enlarged schematic diagram of point A in the middle.

[0024] In the figure: 1. main board; 2. screening mechanism; 201. L-shaped fixing plate; 202. first connecting block; 203. electric push rod; 204. screening frame; 205. fixing block; 206. guide rod; 207. guide plate; 208. guide groove; 209. second connecting block; 2010. baffle; 2011. connecting hole; 2012. clamping rod; 2013. first screening hole; 2014. second screening hole; 2015. third screening hole; 3. box door; 4. first handle; 5. collection frame; 6. second handle; 7. material guide frame; 8. support leg; 9. foot pad. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 to Figure 4 As shown, this embodiment proposes a grading screening device, including a main board 1, a screening mechanism 2 is provided on the upper part of the main board 1, the screening mechanism 2 includes an L-shaped fixing plate 201 fixedly connected to the outer surface of the main board 1, three first connecting blocks 202, and an electric push rod 203 hinged to the first connecting blocks 202 through a pin shaft, and the outer surfaces of the three first connecting blocks 202 are fixedly connected to the right side surface of the L-shaped fixing plate 201.

[0028] In this embodiment, reference Figures 1 to 4 The setting of the L-shaped fixing plate 201 can better facilitate the installation and disassembly of the electric push rod 203, and through the setting of the first connecting block 202, the electric push rod 203 can be tilted, so that it is convenient to pull and push the subsequent components through the electric push rod 203, and then the driving work of the subsequent components can be realized without manual operation, which greatly improves the practicality and convenience of the overall device.

[0029] A collecting frame 5 is placed on the upper surface of the main board 1, and a second handle 6 is fixedly connected to the right side of the collecting frame 5. By setting the collecting frame 5, it is easier to collect and store the fine feed additives after graded and screened, and the second handle 6 makes it easier for the staff to pull out the collecting frame 5, so that the staff can take out the graded and screened materials in the collecting frame 5, and the collecting frame 5 can be pushed and pulled out of the lower part of the screening frame 204, so as to collect and take out the graded and screened feed additives.

[0030] A material guide frame 7 is provided on the upper part of the main board 1, and the upper surface of the material guide frame 7 is fixedly connected to the bottom surface of the screening frame 204 on the same side. The material guide frame 7 is located on the upper part of the collecting frame 5. By providing the material guide frame 7, it is better to facilitate the limited discharge of the screened feed additives and accurately discharge them into the subsequent collection area, thereby avoiding the screened feed additives from being scattered everywhere when the feed additives are swung back and forth.

[0031] Support legs 8 are fixedly connected to the four corners of the bottom surface of the main board 1, and the lower ends of the support legs 8 are fixedly connected to foot pads 9. By providing the support legs 8, the overall device can be placed more conveniently, thereby greatly improving the stability of the overall device, and by providing the foot pads 9, the friction between the overall device and the ground can be greatly improved, thereby further improving the stability of the overall device and avoiding the risk of tipping over when swinging and screening feed additives.

[0032] Example 2

[0033] like Figure 1 to Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that three screening frames 204 are provided on the upper part of the main board 1, and the left and right sides of the screening frames 204 are fixedly connected with two fixed blocks 205, and the side surfaces of each group of fixed blocks 205 close to each other are rotatably connected with a guide rod 206, and the upper surface of the main board 1 is fixedly connected with two groups of guide plates 207, and the outer surface of each guide plate 207 is provided with three guide grooves 208 for guiding the guide rod 206, and the inner wall of the guide groove 208 is slidably connected to the outer surface of the guide rod 206 on the same side, and the output ends of the three electric push rods 203 are hinged with a second connecting block 209 through a pin shaft, and the inner wall of the second connecting block 209 is rotatably connected to the outer surface of the guide rod 206 on the same side.

[0034] In this embodiment, reference Figures 1 to 4 The setting of the screening frame 204 can facilitate the screening and storage of feed additives, and through the setting of subsequent screening and filtering, materials with large particle differences can be graded and screened. The electric push rod 203 drives the second connecting block 209 and the guide rod 206 to perform inclined lateral movement under the limiting and guiding action of the guide groove 208, so that the feed additives in the screening frame 204 can be shaken and screened, which can not only avoid blockage when screening the feed additives, but also facilitate uniform screening and avoid the accumulation of materials on one side affecting the screening effect.

[0035] The front and rear ends of each guide rod 206 are fixedly connected with a baffle 2010, and the baffle 2010 is located outside the guide plate 207. By setting the baffle 2010, it is easier to limit and block the guide rod 206, so that the screening frame 204 and the guide rod 206 can slide stably in the guide groove 208, which can greatly improve the stability of the screening frame 204 when it swings horizontally, avoid the risk of the screening frame 204 deviating and falling off when swinging to screen the materials, and greatly improve the practicality of the overall device.

[0036] Connecting holes 2011 are provided at the four corners of the upper surfaces of the three screening frames 204, and four clamping rods 2012 are provided on the upper part of the main board 1, and the clamping rods 2012 are clamped with the connecting holes 2011. By setting the connecting holes 2011 and the clamping rods 2012, multiple screening frames 204 can be better connected, so that synchronous swing screening can be facilitated, avoiding offset during screening to affect the screening effect of feed additives, and the baffle 2010 can be installed and removed, greatly improving the practicality and convenience of the overall device.

[0037] The inner bottom walls of the three screening frames 204 are respectively provided with a first screening hole 2013, a second screening hole 2014, and a third screening hole 2015, and the first screening hole 2013 is located above the second screening hole 2014, and the second screening hole 2014 is located above the third screening hole 2015. By providing the first screening hole 2013, the second screening hole 2014 and the third screening hole 2015, feed additives of different particle sizes can be better screened and separated, so that smaller particles fall into the subsequent collection area in turn, and larger particles are stored in the screening frame 204, so that feed additives of different particle sizes can be graded and screened, greatly improving the practicality of the overall device.

[0038] The front sides of the three screening frames 204 are all hinged with doors 3, and the front sides of the doors 3 are fixedly connected with a first handle 4. By providing the doors 3, it is possible to better facilitate the removal of screened materials stored in the screening frames 204, thereby facilitating the collection and utilization of feed additives of different particle sizes by staff, greatly improving the practicality of the overall device, and the provision of the first handle 4 can better facilitate the opening and closing of the doors 3.

[0039] Working principle: When the feed additives are graded and screened, the feed additives are first poured into the uppermost screening frame 204, and then the electric push rod 203 is started. The output end of the electric push rod 203 pulls and pushes the guide rod 206 through the second connecting block 209, so that the guide rod 206 can be limited and guided by the guide groove 208 during the movement, and then the guide rod 206 can drive the screening frame 204 to swing back and forth through the limit of the fixed block 205, so as to screen the feed additives, and the feed additives can be screened through the first screening hole 2013 and the second screening hole 2014. 2014 and the third screening hole 2015 filter and screen and grade materials of different sizes in turn, thereby realizing multiple graded screening of materials and avoiding the accumulation, splashing and clogging of feed additives during graded screening. The screened materials can be taken out through the box door 3 and the first handle 4 for materials with larger particles, and materials with smaller particles can be limited and transported by the material guide frame 7 when falling, so that they fall into the collection frame 5. The collection frame 5 can be pulled out by the second handle 6, so that the screened feed additives can be collected conveniently.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grading and screening device, characterized in that: The invention comprises a main board (1), wherein a screening mechanism (2) is provided on the upper part of the main board (1), wherein the screening mechanism (2) comprises an L-shaped fixing plate (201) fixedly connected to the outer surface of the main board (1), three first connecting blocks (202), and an electric push rod (203) hingedly connected to the first connecting blocks (202) via a pin, wherein the outer surfaces of the three first connecting blocks (202) are fixedly connected to the right side surface of the L-shaped fixing plate (201); The upper part of the main board (1) is provided with three screening frames (204), and the left and right sides of the screening frames (204) are fixedly connected with two fixed blocks (205), and the side surfaces of each group of the fixed blocks (205) close to each other are rotatably connected with a guide rod (206), and the upper surface of the main board (1) is fixedly connected with two groups of guide plates (207), and the outer surface of each guide plate (207) is provided with three guide grooves (208) for guiding the guide rod (206), and the inner wall of the guide groove (208) is slidably connected to the outer surface of the guide rod (206) on the same side, and the output ends of the three electric push rods (203) are hinged with a second connecting block (209) through a pin shaft, and the inner wall of the second connecting block (209) is rotatably connected to the outer surface of the guide rod (206) on the same side.

2. A grading and screening device according to claim 1, characterized in that: The front and rear ends of each guide rod (206) are fixedly connected to a baffle (2010), and the baffle (2010) is located outside the guide plate (207).

3. A grading and screening device according to claim 1, characterized in that: The four corners of the upper surfaces of the three screening frames (204) are provided with connection holes (2011), the upper part of the main board (1) is provided with four clamping rods (2012), and the clamping rods (2012) are clamped with the connection holes (2011).

4. A grading and screening device according to claim 1, characterized in that: The inner bottom walls of the three screening frames (204) are respectively provided with a first screening hole (2013), a second screening hole (2014), and a third screening hole (2015), and the first screening hole (2013) is located above the second screening hole (2014), and the second screening hole (2014) is located above the third screening hole (2015).

5. A grading and screening device according to claim 1, characterized in that: The front sides of the three screening frames (204) are all hingedly connected to a box door (3) via hinges, and the front sides of the box doors (3) are fixedly connected to a first handle (4).

6. A grading and screening device according to claim 1, characterized in that: A collection frame (5) is placed on the upper surface of the main board (1), and a second handle (6) is fixedly connected to the right side of the collection frame (5).

7. A grading and screening device according to claim 6, characterized in that: A material guide frame (7) is provided on the upper part of the main board (1), and the upper surface of the material guide frame (7) is fixedly connected to the bottom surface of the screening frame (204) on the same side, and the material guide frame (7) is located on the upper part of the collecting frame (5).

8. A grading and screening device according to claim 1, characterized in that: Support legs (8) are fixedly connected to the four corners of the bottom surface of the main board (1), and foot pads (9) are fixedly connected to the lower ends of the support legs (8).

Images