A crushing and screening machine for feed processing

Abstract

The utility model relates to a crushing and screening machine for feed processing. It includes a mounting bracket, on the top of which an intermediate mounting bracket and a primary filter plate are mounted; on the intermediate mounting bracket a crushing device and a feed hopper are mounted; on the mounting bracket a screening device is mounted, and also includes a vibration drive device; the screening device includes an upper screen frame, on the bottom open portion of the upper screen frame an upper screening plate is mounted, and also includes a discharge hopper mounted on the upper screen frame, on which a lower screening plate is mounted and a discharge port is provided; the vibration drive device includes two sets of pivoting mounting sleeves and a pivoting mounting frame pivotally connected to the two; also includes a motor mounting seat, between which a pulling spring is mounted the outer end of the motor mounting seat and the pivoting mounting frame; and also includes a driving motor, on the output shaft of which a driving cam is keyed. The utility model can perform crushing and multi-stage screening operations on materials, and perform vibration cleaning operations on the screen plate during the screening process to avoid blockage of the screen plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing equipment, in particular to a crushing and screening machine for feed processing. Background Art

[0002] Feed is the general term for food for animals raised by humans. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten types of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, feed additives, etc.

[0003] In the process of feed production and processing, it is necessary to use a crushing device to crush large raw materials, and then screen and mix the crushed raw materials. In the process of raw material crushing, since the amount of raw materials added each time is different, if the raw materials added are too little and the crushing chamber is large, the crushing efficiency will be low and the material crushing uniformity will be poor.

[0004] In the actual working process, it was found that the current crushing device has the following disadvantages: usually, the material needs to be screened after crushing to ensure the quality of crushing, but the current crushing device is prone to blockage of the screen plate during the screening process, thus affecting the processing progress; in addition, the current crushing device can only perform single-stage screening on the crushed material, and it is impossible to achieve one-time screening for raw materials with different particle sizes. Utility Model Content

[0005] The utility model provides a feed processing crushing and screening machine with a reasonable structural design to solve the technical problems existing in the known technology. The utility model can perform efficient crushing and multi-stage screening operations on materials, and perform vibration cleaning operations on the screen plate during the screening process to avoid the screen plate from being blocked and affecting the production and processing of feed.

[0006] The utility model adopts the following technical scheme to solve the technical problems existing in the known technology: a crushing and screening machine for feed processing comprises a mounting bracket with a plurality of groups of movable casters mounted on the bottom, an intermediate mounting bracket mounted on the top of the mounting bracket, and a primary filter plate inserted on the intermediate mounting bracket; a crushing device is mounted on the intermediate mounting bracket and is provided with a discharge slot corresponding to the crushing device, and a feed hopper corresponding to the feed port thereof is mounted on the crushing device; a screening device located below the primary filter plate is movably mounted on the mounting bracket, and also comprises a vibration driving device mounted on the mounting bracket, and is used to drive the screening device to vibrate; the screening device comprises an upper screen plate frame connected to the vibration driving device, an upper screen plate is mounted at the bottom open portion of the upper screen plate frame, and also comprises a screen plate on the upper screen plate frame A discharge hopper is installed below the upper screening plate, a lower screening plate is installed on the discharge hopper and a discharge port is provided, the apertures of the several screening holes provided on the upper screening plate are larger than the apertures of the several screening holes provided on the lower screening plate; the apertures of the several screening holes provided on the primary filter plate are larger than the apertures of the several screening holes provided on the upper screening plate; the vibration drive device includes two groups of pivot mounting sleeves coaxially installed on the mounting bracket, a pivot mounting frame connected to the upper screening plate frame is pivotally connected between the two groups of pivot mounting sleeves; it also includes a motor mounting seat installed on the mounting bracket, a pulling spring is installed between the motor mounting seat and the outer ends of the pivot mounting frame; it also includes a driving motor installed on the motor mounting seat, a driving cam that is in rolling contact with the pivot mounting frame is keyed to the output shaft of the driving motor.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a crushing and screening machine for feed processing, which can crush materials put into a feed hopper by setting a crushing device, and can perform a primary filtering operation on the crushed materials by setting a primary filter plate, and screen out large-size particles that do not meet the requirements; by setting a screening device, a one-time multi-stage screening operation can be performed on the materials that have completed the primary filtering operation, and the crushed materials can be collected according to different particle sizes; by setting a vibration driving device, the screening device can be driven to vibrate reciprocatingly, thereby avoiding blockage of the screening device during the graded screening process and affecting normal operation.

[0008] Preferably: it also includes a discharge chute detachably mounted on the mounting bracket, the discharge chute is located below the lower screening plate; it also includes a discharge chute mounted on the mounting bracket and located below the lower end of the upper screening plate; it also includes a front collecting box detachably mounted on the mounting bracket and located below the discharge chute, a material guiding inclined plate located between the front collecting box and the discharge port of the discharge hopper is installed on the mounting bracket; it also includes a rear collecting box mounted on the mounting bracket and located below the lower screening plate.

[0009] Preferably: the crushing device includes a shell structure installed on the intermediate mounting frame, a knife roller structure is rotatably connected inside the shell structure, and also includes a material blocking inclined plate installed in the inner cavity of the shell structure and cooperating with the knife roller structure; it also includes a crushing motor installed on the intermediate mounting frame, and a reducer is installed between the output shaft of the crushing motor and the knife roller structure.

[0010] Preferably: the shell structure includes a lower crushing shell and an upper crushing shell that are pivotally connected and butt-fitted, a plurality of locking buckles are provided between the lower crushing shell and the upper crushing shell to lock the two together, and also includes a handle installed on the upper crushing shell.

[0011] Preferably: the knife roller structure includes a transversely arranged crushing shaft rotatably connected to the shell structure, and a plurality of groups of small crushing knives and a plurality of groups of large crushing knives distributed along its axial direction are key-connected to the crushing shaft, and slots corresponding to the plurality of groups of small crushing knives and the plurality of groups of large crushing knives are opened on the material blocking inclined plate.

[0012] Preferably: the pulverizing device further comprises a plurality of groups of arc-shaped filter screens mounted on the lower pulverizing shell and respectively arranged corresponding to the plurality of groups of large pulverizing knives, a plurality of sieve holes are provided on the arc-shaped filter screens and the aperture of the sieve holes is larger than the aperture of the plurality of sieve holes provided on the primary filter plate.

[0013] Preferably: the inner cavity cross-section of the upper pulverizing shell is funnel-shaped to form a pulverizing cavity, and the material blocking inclined plate is installed on the inclined surface of the pulverizing cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the pulverizing device in the utility model;

[0016] Figure 3 yes Figure 2 AA cross-sectional structure diagram in;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the lower main body of the utility model;

[0018] Figure 5 yes Figure 4 Schematic diagram of the BB cross-sectional structure.

[0019] In the figure: 1. Mounting bracket; 2. Moving casters; 3. Front collecting box; 4. Discharging slide; 5. Guide inclined plate; 6. Rear collecting box; 7. Screening device; 7-1. Upper screen frame; 7-2. Upper screening plate; 7-3. Discharging hopper; 7-4. Lower screening plate; 8. Vibration drive device; 8-1. Pivot mounting sleeve; 8-2. Pivot mounting frame; 8-3. Pull spring; 8-4. Drive motor; 8-5. Drive cam; 8-6. Motor installation Seat; 9, primary filter plate; 10, intermediate mounting frame; 11, crushing device; 11-1, locking buckle; 11-2, lower crushing shell; 11-3, upper crushing shell; 11-4, knife roller structure; 11-4-1, crushing shaft; 11-4-2, small crushing knife; 11-4-3, large crushing knife; 11-5, crushing chamber; 11-6, material blocking inclined plate; 11-7, crushing motor; 11-8, arc filter; 12, feed hopper. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0021] See also Figure 1 The feed processing crushing and screening machine of the utility model comprises a mounting bracket 1 with multiple groups of movable casters 2 installed at the bottom, an intermediate mounting bracket 10 is installed on the top of the mounting bracket 1, and a primary filter plate 9 is inserted on the intermediate mounting bracket 10; a crushing device 11 is installed on the intermediate mounting bracket 10 and a discharge slot corresponding to the crushing device 11 is opened, and a feed hopper 12 corresponding to its feed port is installed on the crushing device 11. The cross section of the above-mentioned feed hopper 12 is an L-shaped structure. Through the above-mentioned arrangement, it can be avoided that the material splashes during the crushing operation to affect the environment and waste resources.

[0022] See also Figure 2 and Figure 3 In this embodiment, the above-mentioned crushing device 11 includes a shell structure installed on the intermediate mounting frame 10, in which a knife roller structure 11-4 is rotatably connected, and also includes a material blocking inclined plate 11-6 installed in the inner cavity of the shell structure and cooperating with the knife roller structure 11-4; it also includes a crushing motor 11-7 installed on the intermediate mounting frame 10, and a reducer is installed between the output shaft of the crushing motor 11-7 and the knife roller structure 11-4.

[0023] In addition, the housing structure includes a lower crushing housing 11-2 and an upper crushing housing 11-3 that are pivotally connected and butt-engaged, and multiple sets of locking buckles 11-1 are provided between the lower crushing housing 11-2 and the upper crushing housing 11-3 to lock and connect the two, and also includes a handle installed on the upper crushing housing 11-3. In addition, the inner cavity cross-section of the upper crushing housing 11-3 is funnel-shaped to form a crushing chamber 11-5, and the material blocking inclined plate 11-6 is installed on the inclined surface of the crushing chamber 11-5.

[0024] The knife roller structure 11-4 includes a transversely arranged crushing shaft 11-4-1 rotatably connected to the shell structure, and a plurality of groups of small crushing knives 11-4-2 and a plurality of groups of large crushing knives 11-4-3 distributed along its axial direction are key-connected to the crushing shaft 11-4-1, and slots corresponding to the plurality of groups of small crushing knives 11-4-2 and the plurality of groups of large crushing knives 11-4-3 are provided on the material blocking inclined plate 11-6. The size of the large crushing knife 11-4-3 is larger than that of the small crushing knife 11-4-2. By setting a relatively large crushing knife 11-4-3, the material in the crushing chamber 11-5 can be crushed and disturbed at the same time, so as to avoid the blockage of the material affecting the feeding process.

[0025] The crushing device 11 also includes a plurality of groups of arc-shaped filter screens 11-8 installed on the lower crushing shell 11-2 and respectively arranged corresponding to the plurality of groups of large crushing knives 11-4-3. A plurality of sieve holes are opened on the arc-shaped filter screen 11-8, and the aperture of the sieve holes is larger than the aperture of the plurality of sieve holes opened on the primary filter plate 9.

[0026] In order to perform multi-stage screening operations on the crushed materials, such as Figure 1 As shown, a screening device 7 located below a primary filter plate 9 is movably mounted on the mounting bracket 1 , and also includes a vibration driving device 8 mounted on the mounting bracket 1 for driving the screening device 7 to vibrate.

[0027] See also Figure 4 and Figure 5 In this embodiment, the screening device 7 includes an upper screen frame 7-1 connected to the vibration drive device 8, an upper screen plate 7-2 is installed at the bottom open of the upper screen frame 7-1, and also includes a discharge hopper 7-3 installed on the upper screen frame 7-1 and located below the upper screen plate 7-2, a lower screen plate 7-4 is installed on the discharge hopper 7-3 and a discharge port is provided, the aperture of the several sieve holes opened on the upper screen plate 7-2 is larger than the aperture of the several sieve holes opened on the lower screen plate 7-4; the aperture of the several sieve holes opened on the primary filter plate 9 is larger than the aperture of the several sieve holes opened on the upper screen plate 7-2.

[0028] like Figure 4As shown, the vibration drive device 8 includes two groups of pivoting mounting sleeves 8-1 coaxially mounted on the mounting bracket 1, and a pivoting mounting frame 8-2 connected to the upper screen frame 7-1 is pivotally connected between the two groups of pivoting mounting sleeves 8-1; it also includes a motor mounting seat 8-6 mounted on the mounting bracket 1, and a pulling spring 8-3 is installed between the motor mounting seat 8-6 and the outer end of the pivoting mounting frame 8-2; a screw for hanging the pulling spring 8-3 is installed on the motor mounting seat 8-6, and a screw for hanging the pulling spring 8-3 is installed on the outer end of the pivoting mounting frame 8-2. It also includes a driving motor 8-4 mounted on the motor mounting seat 8-6, and a driving cam 8-5 that is in rolling contact with the pivoting mounting frame 8-2 is keyed to the output shaft of the driving motor 8-4.

[0029] Furthermore, coaxial pins are fixedly connected to both ends of the pivot mounting frame 8-2, and the above two groups of pins are rotatably connected to the two groups of pivot mounting sleeves 8-1; a swing arm extending backward is provided on the pivot mounting frame 8-2, the swing arm is in rolling contact with the driving cam 8-5, and the rear end of the swing arm is connected to the pull spring 8-3.

[0030] In order to collect the materials after multi-stage screening, such as Figure 1 As shown, this embodiment also includes a discharge chute 4 detachably mounted on the mounting bracket 1, and the discharge chute 4 is located below the lower screening plate 7-4; it also includes a discharge chute 4 mounted on the mounting bracket 1 and located below the lower end of the upper screening plate 7-2; it also includes a front collecting box 3 detachably mounted on the mounting bracket 1 and located below the discharge chute 4, and a guide inclined plate 5 is mounted on the mounting bracket 1 between the front collecting box 3 and the discharge port of the discharge hopper 7-3; it also includes a rear collecting box 6 mounted on the mounting bracket 1 and located below the lower screening plate 7-4.

[0031] The above-mentioned discharge chute 4 is inclined, and the inclination direction of the discharge chute 4 is that the end adjacent to the upper screen plate 7-2 is higher than the end away from the upper screen plate 7-2, and the guide inclined plate 5 is inclined, and the end adjacent to the discharge hopper 7-3 is higher than the end adjacent to the front collection box 3. In the actual working process, the granular material intercepted by the upper screen plate 7-2 slides onto the discharge chute 4 and is received by the container arranged at the lower end of the discharge chute 4; the material intercepted by the lower screen plate 7-4 falls onto the guide inclined plate 5, and falls into the front collection box 3 along the guide inclined plate 5, and the material screened from the lower screen plate 7-4 falls into the discharge chute 4.

[0032] Working process:

[0033] In the actual working process, the material to be crushed is put into the feed hopper 12, and the crushing shaft 11-4-1 rotates under the drive of the crushing motor 11-7. The rotating crushing shaft 11-4-1 can drive multiple groups of small crushing knives 11-4-2 and multiple groups of large crushing knives 11-4-3 installed thereon to rotate synchronously, thereby crushing the material. The crushed material falls from the crushing device 11 to the primary filter plate 9, and the primary filter plate 9 can perform a primary filtering operation on the crushed material, intercepting large-size materials that do not meet the requirements, and after the crushing operation is completed, the intercepted material is subjected to a secondary crushing operation again;

[0034] After the primary filtering operation of the primary filter plate 9, the material that meets the requirements falls onto the screening device 7 for multi-stage screening operation. The particulate material intercepted by the upper screening plate 7-2 slides onto the discharge chute 4 and is received by the container arranged at the lower end of the discharge chute 4; the material intercepted by the lower screening plate 7-4 falls onto the guide inclined plate 5 and falls into the front collecting box 3 along the guide inclined plate 5, and the material screened by the lower screening plate 7-4 falls into the discharge chute 4; at the same time, the screening device 7 vibrates reciprocatingly to avoid blockage, that is, the driving motor 8-4 is started, driving the driving cam 8-5 installed thereon to rotate synchronously, and the rotating driving cam 8-5 cooperates with the pulling spring 8-3 to drive the pivot mounting frame 8-2 to rotate around its pivot end, thereby driving the screening device 7 installed thereon to flip up and down around the pivot point of the pivot mounting frame 8-2, thereby achieving the purpose of driving the screening device 7 to vibrate.

Claims

1. A crushing and screening machine for feed processing, characterized in that: The invention comprises a mounting bracket (1) having a plurality of groups of movable casters (2) mounted on the bottom, an intermediate mounting bracket (10) mounted on the top of the mounting bracket (1), a primary filter plate (9) being inserted on the intermediate mounting bracket (10); a crushing device (11) being mounted on the intermediate mounting bracket (10) and a discharge slot corresponding to the crushing device (11) being provided, and a feed hopper (12) corresponding to the feed port thereof being mounted on the crushing device (11); a filter plate (9) being movably mounted on the mounting bracket (1) and a filter plate (9) being provided on the intermediate mounting bracket (10); (9), further comprising a vibrating drive device (8) mounted on the mounting bracket (1) for driving the vibrating of the screening device (7); the screening device (7) comprising an upper screen frame (7-1) connected to the vibrating drive device (8), an upper screen plate (7-2) mounted at the bottom opening of the upper screen frame (7-1), and a discharge hopper (7-3) mounted on the upper screen frame (7-1) and located below the upper screen plate (7-2), wherein the discharge hopper (7-3) ) is mounted on a lower screening plate (7-4) and is provided with a discharge port; the apertures of the plurality of screening holes provided on the upper screening plate (7-2) are larger than the apertures of the plurality of screening holes provided on the lower screening plate (7-4); the apertures of the plurality of screening holes provided on the primary filter plate (9) are larger than the apertures of the plurality of screening holes provided on the upper screening plate (7-2); the vibration drive device (8) comprises two sets of pivoting mounting sleeves (8-1) coaxially mounted on the mounting bracket (1); a plurality of pivoting mounting sleeves (8-1) are pivotally connected between the two sets of pivoting mounting sleeves (8-1); A pivot mounting frame (8-2) connected to the upper screen frame (7-1); a motor mounting seat (8-6) mounted on the mounting bracket (1), a pulling spring (8-3) being mounted between the motor mounting seat (8-6) and the outer end of the pivot mounting frame (8-2); and a driving motor (8-4) mounted on the motor mounting seat (8-6), a driving cam (8-5) being key-connected on the output shaft of the driving motor (8-4) and in rolling contact with the pivot mounting frame (8-2).

2. The feed processing crushing and screening machine according to claim 1, characterized in that: The invention also comprises a discharge chute (4) detachably mounted on the mounting bracket (1), the discharge chute (4) being located below the lower screening plate (7-4); a discharge chute (4) mounted on the mounting bracket (1) and located below the lower end of the upper screening plate (7-2); a front collecting box (3) detachably mounted on the mounting bracket (1) and located below the discharge chute (4), a guide inclined plate (5) being mounted on the mounting bracket (1) and located between the front collecting box (3) and the discharge port of the discharge hopper (7-3); and a rear collecting box (6) mounted on the mounting bracket (1) and located below the lower screening plate (7-4).

3. The crushing and screening machine for feed processing according to claim 1, characterized in that: The pulverizing device (11) comprises a shell structure mounted on an intermediate mounting frame (10), a knife roller structure (11-4) rotatably connected in the shell structure, and a material blocking inclined plate (11-6) mounted in the inner cavity of the shell structure and cooperating with the knife roller structure (11-4); and a pulverizing motor (11-7) mounted on the intermediate mounting frame (10), and a speed reducer mounted between the output shaft of the pulverizing motor (11-7) and the knife roller structure (11-4).

4. The crushing and screening machine for feed processing as claimed in claim 3, characterized in that: The shell structure comprises a lower pulverizing shell (11-2) and an upper pulverizing shell (11-3) which are pivotally connected and butt-engaged, a plurality of groups of locking buckles (11-1) are arranged between the lower pulverizing shell (11-2) and the upper pulverizing shell (11-3) for locking the two, and a handle is installed on the upper pulverizing shell (11-3).

5. The crushing and screening machine for feed processing as claimed in claim 3, characterized in that: The knife roller structure (11-4) comprises a pulverizing shaft (11-4-1) which is rotatably connected to a shell structure and is arranged transversely, a plurality of groups of small pulverizing knives (11-4-2) and a plurality of groups of large pulverizing knives (11-4-3) which are distributed along the axial direction of the pulverizing shaft (11-4-1) are key-connected, and slots corresponding to the plurality of groups of small pulverizing knives (11-4-2) and the plurality of groups of large pulverizing knives (11-4-3) are provided on a material blocking inclined plate (11-6).

6. The feed processing crushing and screening machine according to claim 4, characterized in that: The pulverizing device (11) also includes a plurality of groups of arc-shaped filter screens (11-8) mounted on the lower pulverizing shell (11-2) and respectively arranged corresponding to the plurality of groups of large pulverizing knives (11-4-3); a plurality of sieve holes are provided on the arc-shaped filter screen (11-8), and the aperture of the sieve holes is larger than the aperture of the plurality of sieve holes provided on the primary filter plate (9).

7. The crushing and screening machine for feed processing as claimed in claim 4, characterized in that: The inner cavity cross section of the upper pulverizing shell (11-3) is funnel-shaped to form a pulverizing cavity (11-5), and the material blocking inclined plate (11-6) is installed on the inclined surface of the pulverizing cavity (11-5).

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