Feed grinder with screening and returning functions

Abstract

The utility model discloses a feed grinder with screening and returning functions, which comprises a shell, a material inlet, a grinding mechanism, a screening mechanism and a material outlet are sequentially arranged on the shell along the feed conveying direction, and a first temporary storage mechanism and a returning mechanism which are connected with the screening mechanism are further arranged at the side end of the screening mechanism. The first temporary storage mechanism comprises a gravity sensor and a first temporary storage cavity, a first connecting port is formed between the first temporary storage cavity and the material returning mechanism, the first connecting port is provided with a connecting door, the connecting door is connected with a control mechanism, the control mechanism is electrically connected with the gravity sensor, and the top end of the material returning mechanism communicates with the material inlet; the first temporary storage mechanism is arranged and used for temporarily storing materials which do not reach the standard after screening, the gravity sensor monitors the weight of the materials in the temporary storage cavity, and when the gravity sensor detects that the materials are accumulated to a certain amount, the control mechanism opens the connecting door to feed the materials into the material returning mechanism, so that continuous work of the material returning mechanism is avoided, and energy consumption and abrasion of equipment are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of feed production equipment, in particular to a feed grinder with screening and returning material functions. Background Art

[0002] A feed grinder is a machine used to crush various crops or feed materials (such as corn, soybean meal, and hay) into granules or powder. It is widely used in animal husbandry and farms. Grinding reduces the volume of the raw materials, making them easier to mix, transport, and store. It also improves the digestibility and utilization of the feed.

[0003] In the prior art, feed grinders generally crush the feed and then bag it for sale or use. To address this problem, the prior art has proposed some improvements. For example, the patent with authorization announcement number CN203635304U discloses a bagging system for preparing biological feed, including a grinder for crushing fermented feed and a feed pipe for transporting the crushed material to the bagging location. The feed pipe is provided with a spiral feeding mechanism for pushing the material, and a vibrating screen is provided between the discharge port of the grinder and the feed port of the feed pipe. After the material crushed by the grinder is screened by the vibrating screen, the screened material is transported to the bagging location through the feed pipe, and the screened material is returned to the grinder through the return mechanism for re-crushing.

[0004] However, this prior art requires the return mechanism to operate continuously to return the screened material to the crusher, which increases the operating load of the equipment, resulting in increased power consumption, increased equipment wear, and higher maintenance costs. Utility Model Content

[0005] Purpose of the invention: The purpose of the present utility model is to provide a feed grinder with a screening and returning function. A first temporary storage mechanism is set up for temporarily storing materials that do not meet the standards after screening. A gravity sensor monitors the weight of the material in the temporary storage cavity. A connecting door is provided between the first temporary storage cavity and the returning mechanism. When the gravity sensor detects that the material has accumulated to a certain amount, the control mechanism opens the connecting door and sends the material into the returning mechanism, thereby avoiding the continuous operation of the returning mechanism and reducing the energy consumption and wear of the equipment.

[0006] Technical solution:

[0007] A feed grinder with screening and returning functions comprises a shell, wherein the shell is provided with a material inlet, a crushing mechanism, a screening mechanism and a material outlet along the feed conveying direction, the side end of the screening mechanism is also provided with a first temporary storage mechanism and a returning mechanism connected thereto, the screening mechanism comprises a screen, the first temporary storage mechanism comprises a gravity sensor and a first temporary storage cavity, a first connecting port is provided between the first temporary storage cavity and the returning mechanism, the first connecting port is provided with a connecting door, the connecting door is connected to a control mechanism, the control mechanism is electrically connected to the gravity sensor, and the top of the returning mechanism is communicated with the material inlet.

[0008] Preferably, the control mechanism includes a servo motor, the servo motor is connected to a gear, the gear is connected to a rack, the rack is fixedly connected to the connecting door, and the servo motor is electrically connected to the gravity sensor.

[0009] Preferably, the crushing mechanism includes two fixed knife groups arranged at the edges and two crushing rollers arranged in the middle, the crushing rollers are provided with a plurality of first crushing knife seats and first cutting grooves staggered along their axial directions, the fixed knife group is provided with a plurality of second crushing knife seats and second cutting grooves staggered along their axial directions, the second cutting grooves of the fixed knife group are staggered with the first cutting grooves of the crushing rollers adjacent thereto, and the first cutting grooves are staggered between adjacent crushing rollers, the first crushing knife seat is provided with a plurality of blades in the circumference thereof, and the second crushing knife seat is provided with a blade near one end of the crushing roller.

[0010] Preferably, the screening mechanism further includes a vibration motor fixedly connected to the screen.

[0011] Preferably, the lower end of the material outlet is also connected to a second temporary storage mechanism, the second temporary storage mechanism includes a second temporary storage cavity, a rotating shaft is provided in the second temporary storage cavity, a blanking plate is provided in the circumference of the rotating shaft, and a first control motor for controlling the rotation of the rotating shaft is provided outside the second temporary storage cavity.

[0012] Preferably, the material return mechanism includes a second control motor and a feeding spiral dragon.

[0013] Preferably, a guide plate is provided between the crushing mechanism and the screening mechanism, the screen is inclined downward from one end away from the first temporary storage mechanism to the other end close to the first temporary storage mechanism, and the guide plate and the screen are inclined in opposite directions.

[0014] Beneficial effects: By setting up a first temporary storage mechanism for temporarily storing materials that do not meet the standards after screening, a gravity sensor monitors the weight of the materials in the temporary storage chamber, and a connecting door is provided between the first temporary storage chamber and the return mechanism. When the gravity sensor detects that the material has accumulated to a certain amount, the control mechanism opens the connecting door and sends the material into the return mechanism, thereby avoiding the continuous operation of the return mechanism and reducing equipment energy consumption and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 The internal structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 3 The internal structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 4 The internal structure of the utility model is shown in FIG. Figure 3 ;

[0019] Figure 5 Schematic diagram of the control mechanism of the present invention. DETAILED DESCRIPTION

[0020] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1-5 As shown, a feed grinder with screening and returning functions includes a shell 1, and the shell 1 is provided with a material inlet 2, a crushing mechanism 3, a screening mechanism 4 and a material outlet along the feed conveying direction. The side end of the screening mechanism 4 is also provided with a first temporary storage mechanism 5 and a returning mechanism 6 connected thereto, the screening mechanism 4 includes a screen 41, the first temporary storage mechanism 5 includes a gravity sensor and a first temporary storage cavity 51, a first connecting port 71 is provided between the first temporary storage cavity 51 and the returning mechanism 6, the first connecting port is provided with a connecting door 72, the connecting door 72 is connected to a control mechanism 73, the control mechanism 73 is electrically connected to the gravity sensor, and the top of the returning mechanism is communicated with the material inlet 2.

[0023] A material inlet, a crushing mechanism, a screening mechanism and a material outlet are arranged in sequence in the shell along the feed conveying direction, so that the crushing, screening, returning and output links are clearly divided, which is conducive to improving work efficiency.

[0024] A first temporary storage mechanism is set up to temporarily store materials that do not meet the standards after screening. A gravity sensor monitors the weight of the materials in the temporary storage chamber. A connecting door is provided between the first temporary storage chamber and the return mechanism. When the gravity sensor detects that the material has accumulated to a certain amount, the control mechanism opens the connecting door and sends the material into the return mechanism. This avoids the continuous operation of the return mechanism and reduces equipment energy consumption and wear.

[0025] In this embodiment, the control mechanism includes 73 including a servo motor 731, the servo motor 731 is connected to a gear 732, the gear 732 is connected to a rack 733, the rack 733 is fixedly connected to the connecting door 72, and the servo motor is electrically connected to the gravity sensor.

[0026] In this embodiment, the crushing mechanism 3 includes two fixed knife groups 31 arranged at the edge and two crushing rollers 32 arranged in the middle, the crushing rollers 32 are staggered with multiple first crushing knife seats 321 and first cutting grooves 322 along their axial direction, the fixed knife group 31 is staggered with multiple second crushing knife seats 311 and second cutting grooves 312 along its axial direction, the second cutting grooves 312 of the fixed knife group 31 are staggered with the first cutting grooves 322 of the crushing rollers 32 adjacent to it, and the first cutting grooves 322 are staggered between adjacent crushing rollers, the first crushing knife seat 321 is circumferentially provided with multiple blades 33, and the second crushing knife seat 311 is provided with a blade near one end of the crushing roller.

[0027] The pulverizing mechanism consists of two fixed blade blocks and two pulverizing rollers. The cutting grooves of the pulverizing rollers and the fixed blade blocks are staggered with the blade blocks, and the pulverizing blade blocks are equipped with multiple blades. This staggered design effectively improves pulverization. The blades on the first and second pulverizing blade blocks work together to achieve more uniform pulverization, reducing the size of pulverized residue and minimizing the need for return feed.

[0028] In this embodiment, the screening mechanism further includes a vibration motor fixedly connected to the screen, so that the screen works in vibration to achieve higher screening efficiency and reduce the possibility of material blockage.

[0029] In this embodiment, the lower end of the material outlet is further connected to a second temporary storage mechanism 8, which includes a second temporary storage chamber 81. A rotating shaft 82 is disposed within the second temporary storage chamber 81, and a blanking plate 83 is disposed circumferentially around the rotating shaft. A first control motor for controlling the rotation of the rotating shaft is disposed outside the second temporary storage chamber 81, thereby facilitating control of the discharge volume.

[0030] In this embodiment, the return mechanism 6 includes a second control motor and a feeding screw. Working in conjunction with the first temporary storage chamber, the feeding screw efficiently returns the residual material to the crushing mechanism inlet, ensuring timely return of the residual material and optimizing material circulation efficiency.

[0031] In this embodiment, a guide plate 9 is provided between the crushing mechanism 3 and the screening mechanism 4. The screen mesh is tilted downward from the end away from the first temporary storage mechanism 5 toward the end closer to the first temporary storage mechanism 5. The guide plate 9 and the screen mesh are tilted in opposite directions. This facilitates uniform distribution of the material, prevents clogging, and ensures smooth crushing and screening processes.

[0032] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A feed grinder with screening and returning function, characterized in that: The invention comprises a housing (1), wherein the housing (1) is provided with a material inlet (2), a crushing mechanism (3), a screening mechanism (4) and a material outlet along the feed conveying direction. The side end of the screening mechanism (4) is further provided with a first temporary storage mechanism (5) and a material return mechanism (6) connected thereto. The screening mechanism (4) comprises a screen (41). The first temporary storage mechanism (5) comprises a gravity sensor and a first temporary storage cavity (51). A first connecting port (71) is provided between the first temporary storage cavity (51) and the material return mechanism (6). The first connecting port is provided with a connecting door (72). The connecting door (72) is connected to a control mechanism (73). The control mechanism (73) is electrically connected to the gravity sensor. The top end of the material return mechanism is connected to the material inlet (2).

2. A feed grinder with screening and returning function according to claim 1, characterized in that: The control mechanism (73) includes a servo motor (731), the servo motor (731) is connected to a gear (732), the gear (732) is connected to a rack (733), the rack (733) is fixedly connected to the connecting door (72), and the servo motor is electrically connected to the gravity sensor.

3. A feed grinder with screening and returning function according to claim 1, characterized in that: The crushing mechanism (3) comprises two fixed knife groups (31) arranged at the edges and two crushing rollers (32) arranged in the middle, the crushing rollers (32) are staggeredly provided with a plurality of first crushing knife seats (321) and first cutting grooves (322) along the axial direction thereof, the fixed knife group (31) is staggeredly provided with a plurality of second crushing knife seats (311) and second cutting grooves (312) along the axial direction thereof, the second cutting grooves (312) of the fixed knife group (31) are staggered with the first cutting grooves (322) of the crushing rollers (32) adjacent thereto, and the first cutting grooves (322) between adjacent crushing rollers are staggered, the first crushing knife seat (321) is circumferentially provided with a plurality of blades (33), and the second crushing knife seat (311) is provided with a blade near one end of the crushing roller.

4. A feed grinder with screening and returning function according to claim 1, characterized in that: The screening mechanism further comprises a vibration motor fixedly connected to the screen.

5. The feed grinder with screening and returning function according to claim 1, characterized in that: The lower end of the material outlet is also connected to a second temporary storage mechanism (8), the second temporary storage mechanism (8) includes a second temporary storage cavity (81), a rotating shaft (82) is provided in the second temporary storage cavity (81), a blanking plate (83) is provided in the circumference of the rotating shaft, and a first control motor for controlling the rotation of the rotating shaft is provided outside the second temporary storage cavity (81).

6. The feed grinder with screening and returning function according to claim 1, characterized in that: The material return mechanism (6) comprises a second control motor and a feeding spiral dragon.

7. The feed grinder with screening and returning function according to claim 1, characterized in that: A material guide plate (9) is provided between the crushing mechanism (3) and the screening mechanism (4); the end of the screen away from the first temporary storage mechanism (5) is inclined downward toward the end close to the first temporary storage mechanism (5); and the material guide plate (9) and the screen are inclined in opposite directions.

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