A filtering device for producing feed additives

Abstract

The present invention provides a filtering device for producing feed additives, which relates to the technical field of filtering for feed additives. The device comprises a spring coaxially arranged on the inclined rod, and impact disks are respectively installed at both ends of the spring, a through hole is opened on the impact disk, and two through holes are slidably connected to the inclined rod, and two overlapping sleeves are respectively installed on each of the impact disks, and each overlapping sleeve is slidably connected to a piston rod, and a bidirectional tube is slidably installed on the two coaxially arranged overlapping sleeves. The filtering device for producing feed additives adopts a bidirectional symmetrical vibration structure design, which solves the stability problem of traditional unidirectional reciprocating screening devices. By symmetrically installing multiple inclined rods on a fixed frame and arranging a synchronously moving screen plate system on the inclined rods, a balanced distribution of screening force is achieved. When the device is working, the screen plates on both sides perform synchronous but opposite reciprocating motions under the drive of the transmission system.

Description

Technical Field

[0001] The present invention relates to the field of filtering technology for feed additives, and more particularly to a filtering device for producing feed additives. Background Art

[0002] In the field of modern feed industry production, filtration and screening process is a key link in the production process of feed additives, which directly affects product quality and production efficiency. However, the filtration devices used in feed additive production that are currently widely used have technical limitations. These devices generally use a unidirectional reciprocating motion mechanism to drive the screen plate for screening operations, that is, the screen plate only moves back and forth or left and right in one plane direction. This unidirectional reciprocating motion will produce unbalanced inertial force and reaction force during long-term operation, resulting in obvious instability in the entire filtration system. Specifically, the equipment will experience irregular offset and drift in the working state, the screen plate support structure will be subjected to uneven stress distribution, and the fixed parts of the equipment will suffer excessive wear. This instability not only reduces the screening accuracy, but also shortens the service life of the equipment and increases maintenance costs. Especially when processing large quantities of compound feed additives with different particle sizes, this instability problem is more prominent, seriously affecting production efficiency and product quality consistency.

[0003] A more critical technical defect is that these devices usually use a traditional rocker-link mechanism to drive the movement of the screen plate. The characteristic of this mechanism is that the screen plate has obvious speed changes during movement - when the screen plate reaches the upper and lower dead points of the movement stroke, its movement speed drops to zero, and then accelerates again. This periodic change in speed leads to discontinuity of the screening force, making the movement state of the material on the screen plate unstable, especially at the moment when the speed is close to zero, the screening effect is reduced. In addition, due to the structural characteristics of the rocker mechanism, the screening frequency of this type of equipment is usually relatively fixed. When the particle size of the raw material is close to the diameter of the screen hole or the moisture content of the material changes, the fixed frequency is prone to cause the screen hole to be blocked or overscreened, which directly affects the screening efficiency and product quality, and ultimately reduces the bioavailability and nutritional value of feed additives, and has an adverse impact on the production efficiency of the breeding industry. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the problems existing in the prior art, the present invention provides a filtering device for feed additive production to solve the technical problems mentioned in the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filtering device for producing feed additives, comprising a fixed frame and a plurality of inclined rods symmetrically mounted on the fixed frame; further comprising a vibration mechanism, wherein the vibration mechanism comprises a spring coaxially arranged on the inclined rod, and impact disks are respectively mounted at both ends of the spring, the impact disks are provided with through holes, two of the through holes are slidably connected to the inclined rods, each of the impact disks is respectively mounted with two overlapping sleeves, each of the overlapping sleeves is slidably connected to a piston rod, a two-way tube is slidably mounted on the two coaxial overlapping sleeves, a plurality of inner holes are provided on the side walls of the overlapping sleeves, and a plurality of constant pressure holes and exhaust holes are symmetrically provided on both sides of the two-way tube; further comprising a driving mechanism, the driving mechanism comprises two transmission shafts rotatably connected to the fixed frame, and synchronous wheels are respectively mounted on the two transmission shafts, and the two synchronous wheels are meshed with each other.

[0008] Preferably, a fixed plate is installed in the middle position of the spring, and the fixed plate is slidably connected to the inclined rod. A fixing hole is provided on the inclined rod, and fixing bolts are provided in the fixed plate and the fixing hole. This design allows the spring to be firmly fixed to the inclined rod through the fixed plate and the fixing bolts, ensuring that the working position of the spring is stable.

[0009] Preferably, the two-way tube is fixedly connected to the side wall of the fixed disk, and an expansion sleeve is installed on both sides of each of the two-way tubes. The expansion sleeve and the piston rod are coaxially arranged. This structure connects the two-way tube to the fixed disk, and the coaxial design of the expansion sleeve and the piston rod ensures a smooth airflow channel, thereby improving the air pressure transmission efficiency and the system operation stability.

[0010] Preferably, a vibration block is mounted on every two piston rods, the vibration block is mounted on a follower block, a guide sleeve is mounted on the follower block, and the guide sleeve is slidably connected to the oblique rod.

[0011] Preferably, the guide sleeve, the impact plate, the fixed plate and the inclined rod are coaxial and of the same size. This coaxial and same-size design ensures alignment and good fit between the components, reducing eccentric force and vibration during movement.

[0012] Preferably, the driving mechanism also includes a discharge plate mounted on the follower block, and each of the discharge plates is respectively mounted with a sieve plate, a discharge port is mounted on the discharge plate close to one side of the fixed frame, and another discharge port is mounted on the sieve plate close to the other side of the fixed frame. This structural design realizes the effective diversion of the screened material, so that particles of different sizes can be discharged from different outlets, thereby improving the screening accuracy and efficiency.

[0013] Preferably, rockers are respectively installed on the side walls of the two synchronous wheels, and the two rockers are symmetrically arranged. This symmetrical rocker design ensures the balance of driving force on both sides, reduces unbalanced vibration during system operation, and improves the stability of the overall device and screening uniformity.

[0014] Preferably, connecting rods are rotatably installed on the two symmetrically arranged rocking arms, and the other ends of the connecting rods are rotatably connected to the discharge plate. This connecting rod transmission structure converts the rotational motion of the rocking arm into linear reciprocating motion of the discharge plate, thereby achieving smooth and efficient screening operations and reducing mechanical wear.

[0015] Preferably, a motor is fixedly mounted on the fixed frame, a pulley is installed on the protruding end of the motor, a driven wheel is installed on the transmission shaft, and a belt is installed on the driven wheel and the pulley in meshing relationship. This power transmission system design transmits the motor power smoothly to the transmission shaft through belt drive.

[0016] Preferably, the discharge ports on the two discharge plates are on one side, and the discharge ports on the two screen plates are on the other side. This staggered discharge port layout design realizes the directional flow and effective separation of materials, avoids the mixing of materials of different particle sizes, and improves the screening quality and the convenience of subsequent processing.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a filtering device for feed additive production, which has the following beneficial effects:

[0019] The filtering device for feed additive production adopts a bidirectional symmetrical vibration structure design, which solves the stability problem of traditional unidirectional reciprocating screening devices. By symmetrically installing multiple inclined rods on the fixed frame and setting a synchronously moving screen plate system on the inclined rods, a balanced distribution of screening force is achieved. When the device is working, the screen plates on both sides are driven by the transmission system to perform synchronous but opposite reciprocating motions. While one side of the screen plate moves outward, the other side of the screen plate moves inward, forming a dynamic equilibrium state. This symmetrical design enables the inertial force and reaction force generated by the entire system during operation to offset each other, significantly reducing the overall vibration and displacement of the equipment. Practical application shows that compared with traditional unidirectional screening devices, this design reduces the vibration amplitude of the equipment and improves the stability and durability of the equipment. This high stability not only extends the service life of the equipment and reduces maintenance costs, but also ensures the continuity and uniformity of the screening process.

[0020] The device's technological innovation lies in its pneumatic spring composite vibration mechanism, which solves the problem of reduced screening efficiency caused by zero speed at the upper and lower dead centers of traditional rocker mechanisms. The mechanism consists of a spring, impact disc, overlapping sleeve, piston rod, bidirectional tube, and vibration block, forming a highly efficient energy storage and release system. When the screen plate moves to the upper and lower dead centers, the piston rod compresses the gas in the overlapping sleeve, simultaneously compressing the stored energy in the spring. When the inner hole coincides with the exhaust hole, the compressed gas is rapidly discharged, and the spring releases the stored elastic potential energy, pushing the impact disc to strike the vibration block at high speed, generating additional impact vibration. This design adds additional vibration energy to the "dead point" position of traditional screening devices, ensuring the continuity and efficiency of the screening process. Even more unique is that the air pressure in this system is affected by temperature fluctuations, resulting in a certain degree of randomness in the energy and vibration frequency generated by each impact, forming a multi-frequency, multi-amplitude composite vibration pattern. This variable frequency vibration effect effectively prevents "jump resonance" of material on the screen, reduces the probability of screen blockage, and improves screening efficiency.

[0021] The filter device is designed with a two-way air circulation system to ensure the continuous and efficient operation of the vibration mechanism. When the overlapping sleeve on one side moves the compressed gas into the two-way tube, the overlapping sleeve on the other side moves away from the two-way tube, forming a negative pressure area. When the inner hole is connected to the outside world, the outside air is sucked in, so that the system returns to normal pressure and prepares for the next compression cycle. This automatic air circulation design enables the device to maintain stable vibration output under high-frequency operation without the need for additional air supply or complex air pressure control system. The self-balancing characteristics of the system enable it to maintain good screening effects even under long-term continuous operation, which is particularly suitable for the production needs of large-scale feed additives. In addition, the air circulation system is designed with a self-cleaning function. The reciprocating flow of air can effectively prevent fine dust from accumulating inside the mechanism, extending the maintenance cycle of the equipment and reducing downtime during production.

[0022] In summary, this innovative design solves the problems of poor stability, low screening efficiency, and limited adaptability of traditional screening devices, and provides an efficient, stable, and precise screening solution for feed additive production, with significant economic benefits and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a filter device for producing feed additives in the present invention;

[0024] Figure 2 Schematic diagram of the structure of the fixing frame and the motor in the present invention;

[0025] Figure 3 Schematic diagram of the structure of the fixed disk, spring and follower block in the present invention;

[0026] Figure 4 Schematic diagram of the structure of the bidirectional tube and spring in the present invention;

[0027] Figure 5 Schematic diagram of the cross-sectional structure of the bidirectional tube and the impact disk in the present invention;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the bidirectional tube in the present invention;

[0029] Figure 7 Schematic diagram of the structure of the follower block in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the synchronous wheel in the present invention.

[0031] In the figure: 11, fixed frame; 12, inclined rod; 21, spring; 22, impact plate; 23, through hole; 24, overlapping sleeve; 25, piston rod; 26, two-way tube; 27, inner hole; 28, constant pressure hole; 29, exhaust hole; 31, transmission shaft; 32, synchronous wheel; 33, discharge plate; 34, sieve plate; 35, discharge port; 36, rocker; 37, connecting rod; 38, motor; 39, pulley; 210, fixed plate; 211, fixing hole; 212, fixing bolt; 213, expansion sleeve; 214, vibration block; 215, follower block; 216, guide sleeve; 310, driven wheel; 311, belt. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0034] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0035] See also Figures 1 to 4A filtering device for producing feed additives includes a fixed frame 11 and a plurality of inclined rods 12 symmetrically mounted on the fixed frame 11; the vibration mechanism also includes a spring 21 coaxially arranged on the inclined rod 12, and impact disks 22 are respectively mounted at both ends of the spring 21, and a through hole 23 is opened on the impact disk 22, and the two through holes 23 are slidably connected to the inclined rod 12, and each impact disk 22 is respectively mounted with two overlapping sleeves 24, and each overlapping sleeve 24 is slidably connected to a piston rod 25, and a two-way tube 26 is slidably mounted on the two coaxial overlapping sleeves 24, and a plurality of inner holes 27 are opened on the side wall of the overlapping sleeve 24, and a plurality of constant pressure holes 28 and exhaust holes 29 are symmetrically opened on both sides of the two-way tube 26. A fixed plate 210 is installed in the middle position of the spring 21, and the fixed plate 210 is slidably connected to the oblique rod 12. A fixing hole 211 is opened on the oblique rod 12, and fixing bolts 212 are provided in the fixed plate 210 and the fixing hole 211. The side wall of the fixed plate 210 is fixedly connected to the two-way tube 26, and an expansion sleeve 213 is installed on both sides of each two-way tube 26. The expansion sleeve 213 and the piston rod 25 are coaxially arranged, and the guide sleeve 216, the impact plate 22, the fixed plate 210 and the oblique rod 12 are coaxially and of the same size. A vibration block 214 is installed on every two piston rods 25, and the vibration block 214 is installed on the follower block 215. A guide sleeve 216 is installed on the follower block 215, and the guide sleeve 216 is slidably connected to the oblique rod 12.

[0036] Since the feed additive is a solid particle, it needs to be screened when used. First, the motor 38 drives the pulley 39 to rotate, and the power is transmitted to the transmission shaft 31 through the belt 311. The two transmission shafts 31 are respectively equipped with synchronous wheels 32, and the two synchronous wheels 32 are engaged with each other, thereby driving the two connecting rods 37 to swing synchronously, and at this time, the screen plates 34 on both sides will be driven to swing symmetrically back and forth along the inclined rod 12. Since the vibration at both ends is synchronized, the overall vibration level will be reduced, and the stability of use will be improved. The feed additive is placed on the screen plate 34 and screened by reciprocating movement. The larger particles are discharged through the discharge port 35 on the screen plate 34, and the smaller particles are discharged through the discharge port 35 on the discharge plate 33, thereby completing the screening process.

[0037] Since the reciprocating vibration is generated by the rotation of the synchronous wheel 32, the instantaneous speed at the top dead center and the bottom dead center is zero, and additional vibration needs to be applied to ensure the screening process. When the two sieve plates 34 move away from each other, the follower block 215 close to the rocker arm 36 moves toward the fixed plate 210. Since the fixed plate 210 is fixed by the fixing bolt 212 and the inclined rod 12, as the follower block 215 approaches the vibration block 214, the two piston rods 25 on the vibration block will be pushed into the overlapping sleeve 24. Since the piston rod 25 is sealingly and slidingly connected in the overlapping sleeve 24, and the overlapping sleeve 24 is sealingly and slidingly connected in the two-way tube 26, the inner hole 27 at this time fits in the two-way tube 26 in a sealed state, so the overlapping sleeve 24 and the piston rod 25 are in a sealed state. As the piston rod 25 pushes into the overlapping sleeve 24, the pressure of the internal gas increases, and then pushes the overlapping sleeve 24 to move with the piston rod 25 The overlapping sleeve 24 is installed on the impact disc 22, so the spring 21 will continue to compress when the impact disc 22 moves accordingly. As the piston rod 25 continues to move, when the inner hole 27 and the exhaust hole 29 overlap, the internal gas is discharged. At this time, the internal pressure returns to atmospheric pressure, but the spring 21 is in a compressed state, so the elastic potential energy of the spring 21 is released to push the impact disc 22 toward the vibration block 214. As the impact disc 22 moves toward the vibration block 214, the vibration block 214 also moves toward the impact disc 22, and then the impact disc 22 hits the vibration block 214 to generate vibration, and then the screen plate 34 vibrates again, thereby improving the screening effect. Since the air pressure is affected by temperature, the elastic potential energy stored in the spring 21 will also be different due to the change in pressure after continuous use. Therefore, the impact energy and vibration frequency generated by each impact are different, thereby improving the screening effect.

[0038] When the overlapping sleeve 24 on one side moves toward the two-way tube 26, the overlapping sleeve 24 on the other side will move away from the two-way tube 26. When it moves away from the farthest position, the inner hole 27 is connected to the outside air, so that the air will be sucked in by the internal negative pressure, making it become normal pressure, and then return to normal state for the next impact. Therefore, the two ends will reciprocate the process of impact and recovery, thereby ensuring that the upper dead point and the lower dead point will respectively undergo additional impact vibration to ensure the screening effect.

[0039] The driving mechanism includes two transmission shafts 31 rotatably connected to the fixed frame 11, and the two transmission shafts 31 are respectively mounted with synchronous wheels 32, the two synchronous wheels 32 mesh with each other, the driving mechanism also includes a discharge plate 33 mounted on the follower block 215, and each discharge plate 33 is respectively mounted with a sieve plate 34, a discharge port 35 is mounted on the discharge plate 33 on one side of the fixed frame 11, and another discharge port 35 is mounted on the sieve plate 34 on the other side of the fixed frame 11, and a rocking wheel 32 is respectively mounted on the side walls of the two synchronous wheels 32. Rod 36, and the two rocking arms 36 are symmetrically arranged, and the two symmetrically arranged rocking arms 36 are respectively rotatably installed with connecting rods 37, and the other end of the connecting rod 37 is rotatably connected to the fixed frame 11 on the discharge plate 33, and a motor 38 is fixedly arranged on the fixed frame 11. A pulley 39 is installed on the protruding end of the motor 38, and a driven wheel 310 is installed on the transmission shaft 31. A belt 311 is meshed and installed on the driven wheel 310 and the pulley 39. The discharge ports 35 on the two discharge plates 33 are both on one side, and the discharge ports 35 on the two sieve plates 34 are on the other side.

[0040] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be described here one by one. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for producing feed additives, comprising a fixed frame (11) and a plurality of inclined rods (12) symmetrically mounted on the frame (11); wherein: The invention also includes a vibration mechanism, wherein the vibration mechanism includes a spring (21) coaxially arranged on the inclined rod (12), and impact disks (22) are respectively installed at both ends of the spring (21), a through hole (23) is opened on the impact disk (22), two through holes (23) are slidably connected to the inclined rod (12), each of the impact disks (22) is respectively installed with two overlapping sleeves (24), each of the overlapping sleeves (24) is slidably connected to the piston rod (25), a bidirectional tube (26) is slidably installed on the two coaxially arranged overlapping sleeves (24), a plurality of inner holes (27) are opened on the side wall of the overlapping sleeve (24), and the bidirectional tube (26) is slidably connected to the piston rod (25). ) are symmetrically provided with a plurality of constant pressure holes (28) and exhaust holes (29) on both sides of the spring (21), a fixed disk (210) is installed in the middle position of the spring (21), the fixed disk (210) is slidably connected to the inclined rod (12), a fixing hole (211) is provided on the inclined rod (12), fixing bolts (212) are provided in the fixed disk (210) and the fixing hole (211), the side wall of the fixed disk (210) is fixedly connected to the two-way tube (26), and an expansion sleeve (213) is installed on both sides of each of the two-way tubes (26), the expansion sleeve (213) and the piston rod (25) are coaxially arranged, and every two piston rods (25) is provided with a vibration block (214), the vibration block (214) is provided with a follower block (215), the follower block (215) is provided with a guide sleeve (216), the guide sleeve (216) is slidably connected to the inclined rod (12), the guide sleeve (216), the impact disk (22), the fixed disk (210) and the inclined rod (12) are respectively coaxial and of the same size; further comprising a driving mechanism, the driving mechanism comprising two transmission shafts (31) rotatably connected to the fixed frame (11), and the two transmission shafts (31) are respectively provided with synchronous wheels (32), the two synchronous wheels (32) are meshed with each other, and the driving mechanism comprises ...). The driving mechanism further includes a discharge plate (33) mounted on the follower block (215), and a screen plate (34) is mounted on each of the discharge plates (33), a discharge port (35) is mounted on the discharge plate (33) on one side close to the fixed frame (11), and another discharge port (35) is mounted on the screen plate (34) on the other side close to the fixed frame (11), and rockers (36) are mounted on the side walls of the two synchronous wheels (32), and the two rockers (36) are symmetrically arranged, and connecting rods (37) are rotatably mounted on the two symmetrically arranged rockers (36), and the other ends of the connecting rods (37) are rotatably connected to the discharge plate (33).

2. A filter device for feed additive production according to claim 1, characterized in that: A motor (38) is fixedly mounted on the fixed frame (11), a pulley (39) is mounted on the protruding end of the motor (38), a driven wheel (310) is mounted on the transmission shaft (31), and a belt (311) is mounted on the driven wheel (310) and meshed with the pulley (39).

3. The filter device for feed additive production according to claim 1, wherein: The discharge ports (35) on the two discharge plates (33) are both located on one side, and the discharge ports (35) on the two sieve plates (34) are located on the other side.

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