Peanut seedling film checking mechanism

Abstract

The utility model relates to a check mechanism for a peanut vine film, and belongs to the technical field of separation of peanut vines and mulching films. According to the technical scheme, a crushing mechanism (5) is arranged in a separation box (3), a screen (4) is arranged at the bottom of the separation box (3), a material returning mechanism is arranged above the crushing mechanism (5), a discharging port (16) is formed in the bottom of the material returning mechanism, a discharging device (10) is installed in the discharging port (16) and composed of a discharging roller (18) and sealing teeth (19), the sealing teeth (19) are arranged on the outer circumference of the discharging roller (18), the sealing teeth (19) seal the discharging port, and the sealing teeth (19) are arranged on the discharging roller (18). And the separation box (3) forms a negative pressure space. The utility model has the beneficial effects that materials directly fall into the crushing mechanism through the feed opening at the bottom of the return mechanism, and the feed opening is sealed, so that the negative pressure effect of the separation box is ensured, the check efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to a recheck mechanism for peanut seedling film, belonging to the technical field of separation of peanut seedlings and plastic film. Background Technique

[0002] Peanut film mulching planting has many advantages such as increasing temperature and regulating humidity, and significantly increasing production and efficiency. Therefore, peanut film mulching planting is now commonly used. However, while bringing the above-mentioned many advantages, film mulching planting also has many problems. Since the chopped peanut seedlings can be used as livestock feed, but the plastic film (residual film) wrapped around the peanut seedlings will harm the health of livestock, so the plastic film on the peanut seedlings needs to be removed during chopping. Most of the existing technologies complete the sorting by first crushing the peanut seedlings and the film, and then using the weight difference between the film and the seedlings for air separation. For example, Chinese patents CN 201720934597.6 with the name "Peanut seedling film removing and chopping machine with double cyclone separators" and CN202410114265.8 with the name "Peanut seedling film separation and film removing mechanism", etc. In this kind of sorting method, due to the reduction of the weight difference between the plastic film and the peanut seedlings after crushing, in the actual production process, there are still residual broken films in the chopped peanut seedlings. The Chinese invention patent CN 201710020998.5 of the applicant with the name "Spiral film mulched peanut seedling sorting device" uses a method of not chopping the plastic film for sorting, avoiding the residual plastic film in the sorted peanut seedlings, and solving the above-mentioned technical problems existing in the existing technologies; the Chinese invention patent CN202410105861.X of the applicant with the name "Multi-stage reciprocating peanut seedling film sorting machine based on different wind speeds" further improves the sorting method of not chopping the plastic film. In the negative pressure separation box, the peanut seedlings are broken by a crushing mechanism and then fall. The residual plastic film wrapped around the peanut seedlings will not be broken by the crushing mechanism due to its flexibility and elasticity, and floats up and separates from the peanut seedlings under the action of negative pressure; in order to improve the crushing and separation efficiency, a return material mechanism is arranged above the crushing mechanism in the separation box. One end of the return material mechanism is communicated with the feed inlet of the screening box, and the materials that are not fully crushed are sent back for re-crushing and recheck. However, this return material mechanism needs to return the materials to the feed inlet, resulting in problems such as low recheck efficiency and complex structure. If the materials are directly dropped from the bottom opening of the return material mechanism to the crushing mechanism, it will affect the negative pressure effect of the separation box. Content of the Utility Model

[0003] The purpose of the utility model is to provide a recheck mechanism for peanut seedling film, which directly drops the materials to the crushing mechanism through the feeding port at the bottom of the return material mechanism, and seals the feeding port to ensure the negative pressure effect of the separation box, improve the recheck efficiency, reduce the cost, and solve the above problems existing in the background technique.

[0004] The technical solution of the utility model is as follows:

[0005] A peanut vine film rechecking mechanism includes a separation box, a sieve, a crushing mechanism and a material returning mechanism. A crushing mechanism is arranged inside the separation box, a sieve is arranged at the bottom of the separation box, and a material returning mechanism is arranged above the crushing mechanism. A feeding port is arranged at the bottom of the material returning mechanism, and a feeder is installed in the feeding port. The feeder consists of a feeding roller and sealing teeth. Sealing teeth are arranged on the outer circumference of the feeding roller, and the sealing teeth seal the feeding port, and the separation box forms a negative pressure space.

[0006] One side wall of the upper part of the separation box is provided with a plastic film outlet. The material returning mechanism is located below the plastic film outlet and is arranged close to this side wall. A plurality of mutually parallel guide plates are arranged on the other side wall of the separation box, and the guide plates are straight guide plates arranged vertically.

[0007] The material returning mechanism further includes a first partition board, a second partition board and a third partition board; one end of the third partition board is fixed to the lower part of the side wall of the separation box, and the other end extends towards the feeding port. One end of the second partition board is fixed to the upper part of the side wall of the separation box, and the other end extends towards the feeding port. One end of the first partition board is located in the middle of the separation box and is fixed to the front and rear walls of the separation box through a fixing rod, and the other end of the first partition board extends towards the feeding port.

[0008] A longitudinally arranged support bar is arranged at the end of the first partition board extending towards the feeding port. The support bar forms a part of the feeding port, and the support bar is fixed to the other side wall of the separation box through a support rod, and guide plates are arranged on this side wall.

[0009] The separation box is provided with a feeding port; the separation box forms a negative pressure space through an external air mechanism.

[0010] By adopting the utility model, dry peanut vines and residual plastic films enter the separation box through the feeding port. Negative pressure attracts the peanut vines and plastic films to move forward in the separation box. During the movement, the peanut vines broken by the crushing mechanism fall and are discharged and collected through the sieve at the bottom. The residual plastic films wound around the peanut vines will not be broken by the crushing mechanism due to their flexibility and elasticity. Under the action of negative pressure, they float up and separate from the peanut vines, and are discharged and collected through the plastic film outlet at the upper part of the separation box; the peanut vines and plastic films that are not broken and separated are guided upwards by the guide plates on the side wall and fall into the material returning mechanism below the plastic film outlet and above the crushing mechanism. By rotating the feeder, the peanut vines and plastic films falling into the material returning mechanism are sent into the crushing mechanism through the feeding port for rechecking; such rechecking is carried out repeatedly until all the peanut vines and plastic films are separated cleanly. The sealing teeth of the feeder play a sealing role while feeding, sealing the feeding port and ensuring the negative pressure effect in the separation box.

[0011] The beneficial effects of the utility model are: the materials are directly dropped into the crushing mechanism through the feeding port at the bottom of the material returning mechanism, and the feeding port is sealed to ensure the negative pressure effect of the separation box, improve the rechecking efficiency and reduce the cost. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall equipment of the embodiment of the present utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the embodiment of the present utility model;

[0014] Figure 3 It is a front schematic diagram of the embodiment of the present utility model;

[0015] Figure 4 It is a three-dimensional schematic diagram of the separation box of the embodiment of the present utility model;

[0016] Figure 5 It is a front schematic diagram of the separation box of the embodiment of the present utility model;

[0017] Figure 6 It is a schematic diagram of the inside of the separation box of the embodiment of the present utility model;

[0018] Figure 7 It is a three-dimensional schematic diagram of the blanking device of the embodiment of the present utility model;

[0019] Figure 8 It is a front schematic diagram of the blanking device of the embodiment of the present utility model;

[0020] In the figure: frame 1, front separation box 2, separation box 3, screen 4, crushing mechanism 5, feed hopper 6, discharge connecting pipe 7, plastic film outlet 8, fan 9, blanking device 10, roller 11, crushing teeth 12, partition one 13, partition two 14, partition three 15, blanking port 16, support rod 17, blanking roller 18, sealing teeth 19, feed port 20, guide plate 21, fixed rod 22, support strip 23. Specific embodiments

[0021] The present utility model will be further described below with reference to the accompanying drawings through embodiments.

[0022] A peanut vine film re-selection mechanism includes a separation box 3, a screen 4, a crushing mechanism 5 and a material return mechanism. A crushing mechanism 5 is provided inside the separation box 3, a screen 4 is arranged at the bottom of the separation box 3, a material return mechanism is arranged above the crushing mechanism 5, a blanking port 16 is provided at the bottom of the material return mechanism, a blanking device 10 is installed in the blanking port 16, the blanking device 10 is composed of a blanking roller 18 and sealing teeth 19, sealing teeth 19 are arranged on the outer circumference of the blanking roller 18, and the sealing teeth 19 close the blanking port, and the separation box 3 forms a negative pressure space.

[0023] One side wall of the upper part of the separation box 3 is provided with a plastic film outlet 8, the material return mechanism is located below the plastic film outlet 8 and is arranged close to this side wall, and a plurality of mutually parallel guide plates 21 are provided on the other side wall of the separation box 3, and the guide plates 21 are straight guide plates arranged up and down.

[0024] The return material mechanism further includes a first partition plate 13, a second partition plate 14, and a third partition plate 15; one end of the third partition plate 15 is fixed to the lower part of the side wall of the separation box 3, and the other end extends towards the material outlet 16. One end of the second partition plate 14 is fixed to the upper part of the side wall of the separation box 3, and the other end extends towards the material outlet 16. One end of the first partition plate 13 is located in the middle of the separation box 3 and is fixed to the front and rear walls of the separation box 3 through a fixing rod 22, and the other end of the first partition plate 13 extends towards the material outlet 16.

[0025] A longitudinally arranged support bar 23 is provided at the end of the first partition plate 13 extending towards the material outlet 16. The support bar 23 forms a part of the material outlet 16, and the support bar 23 is fixed to the other side wall of the separation box 3 through a support rod 17, and a guide plate 21 is arranged on this side wall.

[0026] The separation box 3 is provided with a feed inlet 20; the separation box 3 forms a negative pressure space through an external blower 9.

[0027] In the embodiment, in order to improve the sorting efficiency of peanut vines and residual plastic films, a front separation box 2 is arranged in front of the separation box 3. The separation box 3 and the front separation box 2 are arranged side by side on the frame 1, and the separation box 3 and the front separation box 2 are connected end to end; a feed hopper 6 is arranged on the front separation box 2 and is connected to the feed inlet 20 of the separation box 3 through a discharge connection pipe 7 to increase the length of the sorting process.

[0028] With the adoption of the present utility model, the dried peanut seedlings and the residual plastic film enter the front separation box 2 together through the feed hopper 6. The peanut seedlings and the plastic film are attracted by negative pressure and move forward in the front separation box 2. During the movement, the peanut seedlings broken by the crushing mechanism 5 fall and are discharged and collected through the bottom screen 4. The plastic film wound around the peanut seedlings will not be broken by the crushing mechanism 5 due to its flexibility and elasticity, and floats up and separates from the peanut seedlings under the action of negative pressure; the peanut seedlings and the plastic film enter the separation box 3 together through the discharge connecting pipe 7, continue to move and be further broken and separated in the separation box 3, and the separated plastic film is discharged and collected through the plastic film outlet 8. The function of the front separation box 2 is to reduce the mixing amount of peanut seedlings and plastic film, fully separate most of the easily crushed peanut seedlings and smaller peanut seedlings from the plastic film, and send the larger and not easily broken peanut seedlings and large plastic films into the separation box 3 with negative pressure. The plastic film is sucked out through the negative pressure of the separation box 3. The peanut seedlings and the plastic film that are not completely separated continue to move forward. During the movement, the peanut seedlings broken by the crushing mechanism 5 fall and are discharged and collected through the bottom screen. The residual plastic film wound around the peanut seedlings will not be broken by the crushing mechanism 5 due to its flexibility and elasticity, and floats up and separates from the peanut seedlings under the action of negative pressure, and is discharged and collected through the plastic film outlet 8 at the upper part of the separation box 3; the peanut seedlings and the plastic film that are not broken and separated are guided upwards by the guide plate 21 on the side wall and fall into the return material mechanism below the plastic film outlet 8 and above the crushing mechanism 5. By rotating the blanking device 10, the peanut seedlings and the plastic film falling into the return material mechanism are sent into the crushing mechanism 5 through the blanking port 16 for re-selection; such re-selection is carried out repeatedly until all the peanut seedlings and the plastic film are completely separated. The sealing teeth 19 of the blanking device 10 play a sealing role while blanking, closing the blanking port 16 to ensure the negative pressure effect in the separation box 3.

Claims

1. A peanut seedling film selection mechanism, characterized in that: The invention comprises a separation box (3), a screen (4), a crushing mechanism (5) and a return mechanism. The separation box (3) is provided with a crushing mechanism (5). The bottom of the separation box (3) is provided with a screen (4). The return mechanism is provided above the crushing mechanism (5). The bottom of the return mechanism is provided with a discharge port (16). A discharge device (10) is installed in the discharge port (16). The discharge device (10) is composed of a discharge roller (18) and sealing teeth (19). The sealing teeth (19) are provided on the outer circumference of the discharge roller (18). The sealing teeth (19) close the discharge port. The separation box (3) forms a negative pressure space.

2. A peanut seedling film selection mechanism according to claim 1, characterized in that: A side wall at the top of the separation box (3) is provided with a ground film outlet (8), and a material return mechanism is located below the ground film outlet (8) and arranged close to the side wall. A plurality of mutually parallel material guide plates (21) are provided on the other side wall of the separation box (3), and the material guide plates (21) are linear material guide plates arranged up and down.

3. A peanut seedling film selection mechanism according to claim 1 or 2, characterized in that: The material return mechanism further comprises partition plate 1 (13), partition plate 2 (14) and partition plate 3 (15); one end of partition plate 3 (15) is fixed to the lower part of the side wall of the separation box (3), and the other end extends to the lower material port (16); one end of partition plate 2 (14) is fixed to the upper part of the side wall of the separation box (3), and the other end extends to the lower material port (16); one end of partition plate 1 (13) is located in the middle of the separation box (3), and is fixed to the front and rear walls of the separation box (3) by a fixing rod (22); the other end of partition plate 1 (13) extends to the lower material port (16).

4. A peanut seedling film selection mechanism according to claim 3, characterized in that: The end of the partition plate (13) extending toward the lower material opening (16) is provided with a longitudinally arranged support bar (23), the support bar (23) constituting a part of the lower material opening (16), the support bar (23) being fixed to the other side wall of the separation box (3) via a support rod (17), and a guide plate (21) being provided on the side wall.

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