A screening machine for nut production

Abstract

The utility model relates to nut screening field, concretely is a kind of screening machine for nut production, including screening machine body, the top of screening machine body is fixedly connected with feed pipe, the top of feed pipe is provided with pre-cleaning mechanism, the pre-cleaning mechanism includes processing pipe, processing pipe is fixedly connected in the top of feed pipe, the inner chamber of processing pipe is provided with roller shaft, the surface of roller shaft and the inner wall of processing pipe are all provided with felt, the top of feed pipe is fixedly connected with motor, the output of motor is fixedly connected with transmission rod, the one end of transmission rod is fixedly connected with first bevel gear, the one end of roller shaft is fixedly connected with second bevel gear;The utility model is through being provided with pre-cleaning mechanism, utilizes the felt of the surface of rotating roller shaft and processing pipe inner wall and forms cooperation, carries out relative motion and generates sustained friction, can reduce the adhesion of egg, makes part of impurity directly fall off.

Description

Technical Field

[0001] This utility model relates to the field of nut screening, specifically a screening machine for nut production. Background Technology

[0002] Nut sorting machines are specialized equipment used in nut processing to grade and sort nuts. Their main function is to classify nuts into different grades based on their size, shape, color, weight, and other characteristics, thereby improving the quality and market competitiveness of nut products.

[0003] Traditional nut sorting machines only process freshly picked nuts using a vibrating sieve disc. Freshly picked nuts contain impurities such as insect eggs, leaves, and dust. Vibrating sieves mainly rely on the mesh size of the screen to separate particles of different sizes. However, insect eggs and dust are small and easily adhere to the surface of the nuts, while leaves are large and difficult to sieve, thus affecting the sorting effect. At the same time, insect eggs attached to the surface of the nuts can easily accelerate the spoilage of the nuts during subsequent storage. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional nut sorting machines only process freshly picked nuts using a vibrating sieve disc. Freshly picked nuts contain impurities such as insect eggs, leaves, and dust. Vibrating sieves mainly rely on the mesh size of the screen to separate particles of different sizes. However, insect eggs and dust are small and easily adhere to the surface of the nuts, while leaves are large and difficult to sieve, thus affecting the sorting effect. At the same time, insect eggs attached to the surface of the nuts can accelerate the spoilage of the nuts during subsequent storage. This utility model proposes a sorting machine for nut production.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a screening machine for nut production, including a screening machine body, a feed pipe fixedly connected to the top of the screening machine body, and a pre-cleaning mechanism provided at the top of the feed pipe;

[0006] The pre-cleaning mechanism includes a processing tube, which is fixedly connected to the top of the feed tube. A roller is provided in the inner cavity of the processing tube, and felt is provided on the surface of the roller and the inner wall of the processing tube. A motor is fixedly connected to the top of the feed tube, and a transmission rod is fixedly connected to the output end of the motor. One end of the transmission rod extends through the inner wall of the processing tube, and a first bevel gear is fixedly connected to one end of the transmission rod. A second bevel gear is fixedly connected to one end of the roller, and the surfaces of the first bevel gear and the second bevel gear mesh with each other.

[0007] Preferably, the inner wall of the processing tube is fixedly connected to an mounting plate and a mounting box, the roller is rotatably connected between the mounting plate and the opposite side of the mounting box, the roller is rotatably connected to the inner cavity of the processing tube through the mounting plate and the mounting box, one end of the roller extends through the inner wall of the mounting box, and the first bevel gear and the second bevel gear are disposed in the inner cavity of the mounting box.

[0008] Preferably, the surface of the roller is provided with a first connecting plate, the inner wall of the processing tube is provided with a second connecting plate, and the felt is fixedly connected to the surface of the first connecting plate and the inner wall of the second connecting plate by Velcro.

[0009] Preferably, guide blocks are fixedly connected to the surface of the first connecting plate and the inner wall of the second connecting plate. Guide grooves are provided on the surface of the roller shaft and the inner wall of the processing tube. The surface of the guide block contacts the inner wall of the guide groove. The first connecting plate and the second connecting plate are slidably connected to the surface of the roller shaft and the inner wall of the processing tube respectively through the guide blocks and the guide grooves.

[0010] Preferably, a spiral plate is fixedly connected to the inner wall of the feed pipe, and holes are opened on the surface of the spiral plate. A fan is fixedly connected to the top of the screening machine body, and an air outlet pipe is fixedly connected to the air outlet end of the fan. The air outlet pipe is fixedly connected to the inner wall of the feed pipe, and an air nozzle is fixedly connected to the surface of the air outlet pipe. One end of the air nozzle penetrates to the inner wall of the feed pipe. There are three air nozzles, and the air nozzles are used in conjunction with the spiral plate.

[0011] Preferably, an air pump is fixedly connected to the top of the screening machine body, and an air extraction pipe is fixedly connected to the air extraction end of the air pump. The air extraction pipe extends through the inner wall of the feed pipe, and an air extraction box is fixedly connected to the surface of the air extraction pipe. There are three air extraction boxes, and the air extraction boxes are used in conjunction with the air jet nozzle and the spiral plate.

[0012] Preferably, the inner wall of the feed pipe is fixedly connected to a fixing block, and there are two fixing blocks. The suction pipe passes through the inner wall of the two fixing blocks and is fixedly connected to the inner wall of the feed pipe through the fixing blocks.

[0013] The advantages of this utility model are:

[0014] This invention features a pre-cleaning mechanism. Freshly picked nuts are poured into a processing tube, driven by a motor. Power is transmitted through the meshing of a first and second bevel gear, causing a roller to rotate. The rotating roller surface engages with the felt on the inner wall of the processing tube, generating continuous friction through relative motion. This effectively removes insect eggs and lint from the nut surface, reducing the adhesion of insect eggs and causing some impurities to fall off directly. This facilitates subsequent collection of impurities and allows for long-term storage of the nuts. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the pre-cleaning mechanism of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the guide block of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the fan of this utility model;

[0020] Figure 5 This is a partial structural diagram of the air extraction pipe of this utility model.

[0021] In the diagram: 1. Screening machine body; 2. Pre-cleaning mechanism; 201. Processing pipe; 202. Roller shaft; 203. Motor; 204. First bevel gear; 205. Second bevel gear; 206. Felt; 207. Transmission rod; 3. Feed pipe; 4. Mounting plate; 5. Mounting box; 6. First connecting plate; 7. Second connecting plate; 8. Guide block; 9. Guide groove; 10. Spiral plate; 11. Fan; 12. Air outlet pipe; 13. Air nozzle; 14. Air pump; 15. Air extraction pipe; 16. Air extraction box; 17. Fixing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a screening machine for nut production. (Refer to...) Figure 1 , Figure 2 and Figure 3A screening machine for nut production includes a screening machine body 1, a feed pipe 3 fixedly connected to the top of the screening machine body 1, and a pre-cleaning mechanism 2 provided at the top of the feed pipe 3.

[0025] The pre-cleaning mechanism 2 includes a processing pipe 201, which is fixedly connected to the top of the feed pipe 3. A roller 202 is installed inside the processing pipe 201. Felt 206 is provided on both the surface of the roller 202 and the inner wall of the processing pipe 201. A motor 203 is fixedly connected to the top of the feed pipe 3. A transmission rod 207 is fixedly connected to the output end of the motor 203. One end of the transmission rod 207 extends through the inner wall of the processing pipe 201. A first bevel gear 204 is fixedly connected to one end of the transmission rod 207, and a second bevel gear 205 is fixedly connected to one end of the roller 202. The surface of the first bevel gear 204 and the surface of the second bevel gear 205 are... The surfaces of 205 mesh. By setting up a pre-cleaning mechanism 2, freshly picked nuts are poured into the processing tube 201. The motor 203 provides driving force, and the power is transmitted through the meshing of the first bevel gear 204 and the second bevel gear 205, which drives the roller 202 to rotate. The surface of the rotating roller 202 cooperates with the felt 206 on the inner wall of the processing tube 201, and the relative motion generates continuous friction, thereby effectively cleaning the insect eggs and lint on the surface of the nuts. This reduces the adhesion of the insect eggs and allows some impurities to fall off directly, which is convenient for the subsequent collection of impurities and facilitates the long-term preservation of the nuts.

[0026] Reference Figure 2 The inner wall of the processing tube 201 is fixedly connected to the mounting plate 4 and the mounting box 5. The roller 202 is rotatably connected between the mounting plate 4 and the mounting box 5 on opposite sides. The roller 202 is rotatably connected to the inner cavity of the processing tube 201 through the mounting plate 4 and the mounting box 5. One end of the roller 202 extends through the inner wall of the mounting box 5. The first bevel gear 204 and the second bevel gear 205 are set in the inner cavity of the mounting box 5. The mounting plate 4 and the mounting box 5 can support and limit the roller 202 to ensure the stability of the roller 202 when rotating. The mounting box 5 can protect the first bevel gear 204 and the second bevel gear 205 to prevent dust from entering the mounting box 5 and to avoid jamming of the first bevel gear 204 and the second bevel gear 205.

[0027] Reference Figure 3 The roller 202 is provided with a first connecting plate 6 on its surface and a second connecting plate 7 is provided on the inner wall of the processing tube 201. The felt 206 is fixedly connected to the surface of the first connecting plate 6 and the inner wall of the second connecting plate 7 by Velcro. The first connecting plate 6 and the second connecting plate 7 facilitate the installation and disassembly of the felt 206 and facilitate the cleaning or replacement of the dirty felt 206.

[0028] Reference Figure 3Guide blocks 8 are fixedly connected to the surface of the first connecting plate 6 and the inner wall of the second connecting plate 7. Guide grooves 9 are opened on the surface of the roller 202 and the inner wall of the processing tube 201. The surface of the guide block 8 contacts the inner wall of the guide groove 9. The first connecting plate 6 and the second connecting plate 7 are slidably connected to the surface of the roller 202 and the inner wall of the processing tube 201 respectively through the guide block 8 and the guide groove 9. The guide block 8 and the guide groove 9 facilitate the guidance and limitation of the first connecting plate 6 and the second connecting plate 7 during installation or disassembly, so that the first connecting plate 6 and the second connecting plate 7 can move along the path of the guide block 8 and the guide groove 9.

[0029] Reference Figure 4 A spiral plate 10 is fixedly connected to the inner wall of the feed pipe 3. Holes are formed on the surface of the spiral plate 10. A blower 11 is fixedly connected to the top of the screening machine body 1. An air outlet pipe 12 is fixedly connected to the outlet end of the blower 11. The air outlet pipe 12 is fixedly connected to the inner wall of the feed pipe 3. Air nozzles 13 are fixedly connected to the surface of the air outlet pipe 12. One end of each air nozzle 13 penetrates the inner wall of the feed pipe 3. There are three air nozzles 13. The air nozzles 13 work in conjunction with the spiral plate 10, and the air is fed through the blower 11, the air outlet pipe 12, and... The jet nozzle 13 is designed to blow air directionally to the bottom of the spiral plate 10. The fan 11 draws in outside air, which is then delivered to the jet nozzle 13 through the air outlet 12 and ejected. The airflow blows out through the holes on the surface of the spiral plate 10. The airflow passes through the holes on the spiral plate 10 and impacts the surface of the nuts that are sliding down the spiral plate 10. This causes the light impurities such as insect eggs, lint, and dust that are not firmly attached after pre-cleaning to be blown up and detached from the nuts by the airflow, thereby achieving the separation of impurities from nuts.

[0030] Reference Figure 5 A vacuum pump 14 is fixedly connected to the top of the screening machine body 1. The vacuum pump 14 is fixedly connected to a vacuum pipe 15. The vacuum pipe 15 extends through the inner wall of the feed pipe 3. A vacuum box 16 is fixedly connected to the surface of the vacuum pipe 15. There are three vacuum boxes 16. The vacuum boxes 16 are used in conjunction with the air nozzle 13 and the spiral plate 10. With the arrangement of the vacuum pump 14, the vacuum pipe 15 and the vacuum box 16, the negative pressure suction generated by the vacuum pump 14 can be used to blow light impurities such as insect eggs, lint, and dust that are blown up by the fan 11 above the spiral plate 10 into the vacuum box 16 with the suction airflow. Then, through the continuous suction of the vacuum pipe 15, they are finally discharged through the air outlet of the vacuum pump 14.

[0031] Reference Figure 5The inner wall of the feed pipe 3 is fixedly connected with two fixing blocks 17. The suction pipe 15 passes through the inner wall of the two fixing blocks 17. The suction pipe 15 is fixedly connected to the inner wall of the feed pipe 3 through the fixing blocks 17. The fixing blocks 17 can support and fix the suction pipe 15, ensuring the stability of the suction pipe 15 installation and preventing the suction pipe 15 from shifting.

[0032] Working principle: The screening machine body 1, through the vibration of the vibrating motor 203, causes the nuts to jump and move forward on the screen. Nuts smaller than the screen holes fall to the next layer, while those larger remain in the current layer and continue moving forward. By passing through multiple layers of screens of different sizes stacked together, with the screen holes increasing in size from top to bottom, the nuts are separated into multiple grades according to size. Nuts of different sizes screened out from each layer flow out of their respective outlets for collection. This is existing technology and will not be elaborated further. Workers pour freshly picked nuts into the processing tube 201 and then start the motor 203 via an external control switch. The motor 203 is powered by an external power source. The output end of the motor 203 drives the transmission rod 207 to rotate, which in turn drives the first bevel gear 204 to rotate synchronously. The rotation of the first bevel gear 204 drives the meshing... The second bevel gear 205 rotates, which drives the roller 202 to rotate synchronously. The poured nuts fall through the space between the roller 202 and the processing tube 201. While falling, they are acted upon by the rotating roller 202. The first felt 206 fixed to the surface of the roller 202 by Velcro on the first connecting plate 6 cooperates with the second felt 206 fixed to the inner wall of the processing tube 201 by Velcro on the second connecting plate 7. The two sets of felt 206 move relative to each other with the inner wall of the roller 202 and the processing tube 201, continuously rubbing the surface of the nuts during the falling process. Through friction, the adhesion between the insect eggs and the nut shell can be broken, so that the originally firmly attached insect eggs, lint and surface impurities are gradually loosened and peeled off, achieving preliminary cleaning.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A screening machine for nut production, comprising a screening machine body (1), characterized in that: The top of the screening machine body (1) is fixedly connected to the feed pipe (3), and the top of the feed pipe (3) is provided with a pre-cleaning mechanism (2); The pre-cleaning mechanism (2) includes a processing tube (201), which is fixedly connected to the top of the feed tube (3). A roller (202) is provided in the inner cavity of the processing tube (201). Felt (206) is provided on the surface of the roller (202) and the inner wall of the processing tube (201). A motor (203) is fixedly connected to the top of the feed tube (3). A transmission rod (207) is fixedly connected to the output end of the motor (203). One end of the transmission rod (207) penetrates into the inner wall of the processing tube (201). A first bevel gear (204) is fixedly connected to one end of the transmission rod (207). A second bevel gear (205) is fixedly connected to one end of the roller (202). The surfaces of the first bevel gear (204) and the second bevel gear (205) mesh with each other.

2. The nut screening machine according to claim 1, characterized in that: The inner wall of the processing tube (201) is fixedly connected to the mounting plate (4) and the mounting box (5). The roller (202) is rotatably connected between the mounting plate (4) and the mounting box (5) on opposite sides. The roller (202) is rotatably connected to the inner cavity of the processing tube (201) through the mounting plate (4) and the mounting box (5). One end of the roller (202) extends through the inner wall of the mounting box (5). The first bevel gear (204) and the second bevel gear (205) are disposed in the inner cavity of the mounting box (5).

3. The screening machine for nut production according to claim 1, characterized in that: The surface of the roller (202) is provided with a first connecting plate (6), the inner wall of the processing tube (201) is provided with a second connecting plate (7), and the felt (206) is fixedly connected to the surface of the first connecting plate (6) and the inner wall of the second connecting plate (7) by Velcro.

4. A screening machine for nut production according to claim 3, characterized in that: Guide blocks (8) are fixedly connected to the surface of the first connecting plate (6) and the inner wall of the second connecting plate (7). Guide grooves (9) are opened on the surface of the roller (202) and the inner wall of the processing tube (201). The surface of the guide block (8) is in contact with the inner wall of the guide groove (9). The first connecting plate (6) and the second connecting plate (7) are slidably connected to the surface of the roller (202) and the inner wall of the processing tube (201) respectively through the guide block (8) and the guide groove (9).

5. A screening machine for nut production according to claim 1, characterized in that: A spiral plate (10) is fixedly connected to the inner wall of the feed pipe (3). Holes are opened on the surface of the spiral plate (10). A fan (11) is fixedly connected to the top of the screening machine body (1). An air outlet pipe (12) is fixedly connected to the air outlet end of the fan (11). The air outlet pipe (12) is fixedly connected to the inner wall of the feed pipe (3). An air nozzle (13) is fixedly connected to the surface of the air outlet pipe (12). One end of the air nozzle (13) penetrates to the inner wall of the feed pipe (3). There are three air nozzles (13). The air nozzles (13) are used in conjunction with the spiral plate (10).

6. A screening machine for nut production according to claim 5, characterized in that: A vacuum pump (14) is fixedly connected to the top of the screening machine body (1). The vacuum pump (14) is fixedly connected to a vacuum pipe (15) at the vacuum end. The vacuum pipe (15) extends through the inner wall of the feed pipe (3). A vacuum box (16) is fixedly connected to the surface of the vacuum pipe (15). There are three vacuum boxes (16). The vacuum boxes (16) are used in conjunction with the air nozzle (13) and the spiral plate (10).

7. A screening machine for nut production according to claim 6, characterized in that: The inner wall of the feed pipe (3) is fixedly connected to a fixing block (17), and there are two fixing blocks (17). The suction pipe (15) passes through the inner wall of the two fixing blocks (17) and is fixedly connected to the inner wall of the feed pipe (3) through the fixing blocks (17).

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