Vacuum chuck for seed knitting machine and use method of vacuum chuck

Abstract

The invention discloses a vacuum chuck for a seed knitting machine and a using method thereof and belongs to the field of agriculture. Comprising a cylindrical suction cup. An air exhaust hole is formed in the back of the sucker, and a plurality of communicating holes communicated with the air exhaust hole are formed in the side face of the sucker; a plurality of round holes communicated with the corresponding communicating holes are formed in the back of the suction cup; a dustproof net I is fixedly connected into each communicating hole, and a fixing ring is fixedly connected to the inner wall of each communicating hole. The fixing ring is connected with a sliding device through a spring; the sliding device is in sliding fit with the communicating hole; and an arc-shaped channel for communicating the adjacent communicating holes is also arranged in the sucking disc. According to the device, part of dust can be cleaned in the working process of the seed knitting machine, so that the cleaning frequency of the dust screen I in the suction cup is reduced, the working efficiency is guaranteed, meanwhile, the dust screen II and the dust screen III can be cleaned without disassembling the device, the device is more convenient, and the working efficiency is further guaranteed.

Description

Technical Field

[0001] The present invention relates to a vacuum suction cup for a seed knitting machine and its usage method, belonging to the agricultural field. Background Art

[0002] A seed knitting machine is a device that places seeds in a knitting belt to ensure the planting depth, quantity, and survival rate of seeds during planting. When it works, seeds are adsorbed by a suction cup and then placed on the knitting belt. Although the above operations can knit seeds well, in actual use, the suction cup not only adsorbs seeds but also adsorbs dust in the air and seed debris into the suction cup. Therefore, a dust-proof net needs to be installed. However, the dust-proof net needs to be frequently disassembled and cleaned to ensure the normal operation of the seed knitting machine, which reduces work efficiency and wastes time. Therefore, it is necessary to improve it. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems in the background art and provide a vacuum suction cup for a seed knitting machine and its usage method.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A vacuum suction cup for a seed knitting machine includes a cylindrical suction cup; an air extraction hole is provided on the back of the suction cup, and a plurality of communication holes communicating with the air extraction hole are provided on the side of the suction cup; a plurality of round holes communicating with the corresponding communication holes are provided on the back of the suction cup; a dust-proof net Ⅰ is fixedly connected in each communication hole, and a fixing ring is also fixedly connected to the inner wall of the communication hole; the fixing ring is connected to a sliding device through a spring; the sliding device is slidably matched with the communication hole; an arc-shaped channel for communicating adjacent communication holes is further provided inside the suction cup.

[0006] A usage method of a vacuum suction cup for a seed knitting machine, the usage method includes the following steps:

[0007] Step 1: After the suction cup rotates to contact the feeding groove, the position sensor feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ in the communication hole at the corresponding position to open, and the air extraction device sucks air to adsorb the seeds on the sliding cylinder;

[0008] Step 2: The driving motor connected to the output shaft drives the suction cup to rotate. When the communication hole adsorbing the seeds rotates to be vertically downward, the position sensor feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ in the communication hole at the corresponding position to close, so that the seeds fall on the knitting belt;

[0009] Step 3: After the seeds in the communication hole at the corresponding position on the suction cup fall off, it moves to the position of the feeding groove and performs dust removal.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can not only clean part of the dust during the operation of the seed knitting machine, so as to slow down the cleaning frequency of the dust-proof net I in the suction cup and ensure the working efficiency. At the same time, the dust-proof net II and the dust-proof net III in the present invention can be cleaned without disassembling the equipment, which is more convenient and further ensures the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view sectional view of a vacuum suction cup for a seed knitting machine of the present invention;

[0012] Figure 2 is the front view sectional view of the suction cup of a vacuum suction cup for a seed knitting machine of the present invention;

[0013] Figure 3 is the side view of the suction cup of a vacuum suction cup for a seed knitting machine of the present invention;

[0014] Figure 4 is Figure 3 the sectional view in the A-A direction in

[0015] Figure 5 is the front view of the suction cup of a vacuum suction cup for a seed knitting machine of the present invention;

[0016] Figure 6 is the structural schematic diagram of the suction cup of a vacuum suction cup for a seed knitting machine of the present invention adsorbing seeds;

[0017] Figure 7 is Figure 6 the enlarged structural schematic diagram of B in

[0018] Figure 8 is the structural schematic diagram of the sliding device of a vacuum suction cup for a seed knitting machine of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] DETAILED DESCRIPTION OF THE INVENTION I: As Figure 1-8As shown in the figure, this embodiment describes a vacuum suction cup for a seed knitting machine, including a cylindrical suction cup 1; an air extraction hole 19 is provided on the back of the suction cup 1, and a plurality of communication holes 12 communicating with the air extraction hole 19 are provided on the side of the suction cup 1; a plurality of round holes 17 communicating with the corresponding communication holes 12 are provided on the back of the suction cup 1; a dust-proof net I 16 is fixedly connected in each communication hole 12, and a fixing ring 15 is also fixedly connected to the inner wall of the communication hole 12; a sliding device 3 is connected to the fixing ring 15 through a spring 14; the sliding device 3 is in sliding fit with the communication hole 12; an arc-shaped channel 13 for communicating adjacent communication holes 12 is further provided inside the suction cup 1.

[0021] The sliding device 3 includes a sliding cylinder 31; the sliding cylinder 31 is in sliding fit with the communication hole 12, and one end of the sliding cylinder 31 located inside the communication hole 12 is also fixedly connected to the spring 14; the end of the sliding cylinder 31 located outside the communication hole 12 is used for adsorbing seeds 2; a through hole I 32 is provided on one side inside the sliding cylinder 31, and a through hole II 34 is provided on the other side, and a dust-proof net II 33 is fixedly connected inside the through hole I 32; a slideway 35 is also provided on the sliding cylinder 31, a baffle 37 is provided inside the sliding cylinder 31, a connecting rod in sliding fit with the slideway 35 is fixedly connected to the side of the baffle 37, and the other end of the connecting rod is fixedly connected to the inner wall of the communication hole 12; a groove 36 is provided on the side of the sliding cylinder 31 where the through hole II 34 is provided. Through the connection of the arc-shaped channel 13 with the through hole I 32 and the through hole II 34, the air flow performs a backflush on the dust-proof net I 16, facilitating the cleaning of some impurities.

[0022] The distance between the through hole I 32 and the seed adsorption end of the sliding cylinder 31 is less than the distance between the through hole II 34 and the seed adsorption end, so that the through hole I 32 and the through hole II 34 on the same sliding cylinder 31 cannot be simultaneously connected to the arc-shaped channel 13 at the corresponding position.

[0023] When the sliding cylinder 31 slides, the through hole I 32 and the through hole II 34 are connected to the arc-shaped channel 13 on the corresponding side.

[0024] A position sensor 11 is provided on the outer circumferential surface of the suction cup 1 on the side of each communication hole 12.

[0025] An electromagnetic valve I 18 is provided in each communication hole 12, an electromagnetic valve II 110 is provided in each round hole 17, and the electromagnetic valve I 18, the electromagnetic valve II 110, and the position sensor 11 are all electrically connected to the controller; a dust-proof net III 111 covering the corresponding round hole 17 is fixedly connected to the back of the suction cup 1.

[0026] When the sliding cylinder 31 is completely located inside the communication hole 12, the spring 14 is in a compressed state.

[0027] When the sliding cylinder 31 is completely located inside the communication hole 12, the baffle 37 is located between the perforation Ⅰ 32 and the adsorption end of the sliding cylinder 31; when a part of the microphone 31 is located outside the communication hole 12, the baffle 37 is located between the perforation Ⅰ 32 and the perforation Ⅱ 34.

[0028] A feeding groove 4 is provided on the side of the sucker 1, and a limiting plate 5 is fixedly connected to the lower end of the feeding groove 4; an output shaft 6 is fixedly connected to the center of the front end of the sucker 1; the air extraction hole 19 is communicated with an air extraction device.

[0029] A using method of a vacuum sucker for a seed knitting machine, the using method comprising the following steps:

[0030] Step 1: After the sucker 1 rotates to contact with the feeding groove 4, the position sensor 11 feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ 18 in the communication hole 12 at the corresponding position to open, and the air extraction device sucks air to adsorb the seeds 2 on the sliding cylinder 31;

[0031] Step 2: The driving motor connected to the output shaft 6 drives the sucker 1 to rotate. When the communication hole 12 adsorbing the seeds 2 rotates to be vertically downward, the position sensor 11 feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ 18 in the communication hole 12 at the corresponding position to close, so that the seeds fall on the knitting belt;

[0032] Step 3: After the seeds in the communication hole 12 at the corresponding position on the sucker 1 fall off, it moves to the position of the feeding groove 4 and performs dust removal.

[0033] The working principle of the present invention is: when using this device, after the sucker 1 rotates to contact with the feeding groove 4 (i.e., the left position in the Figure 1 shown direction), the position sensor 11 feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ 18 in the communication hole 12 at the corresponding position to open, and the air extraction device sucks air to adsorb the seeds 2 on the sliding cylinder 31; the air intake volume of the air extraction device per unit time is greater than the air intake volume of any communication hole 12 per unit time to ensure the negative pressure adsorption effect;

[0034] The driving motor connected to the output shaft 6 drives the sucker 1 to rotate. When the communication hole 12 adsorbing the seeds 2 rotates to be vertically downward (i.e., the lower position in the Figure 1 shown direction), the position sensor 11 feeds back a signal to the controller, and the controller controls the solenoid valve Ⅰ 18 in the communication hole 12 at the corresponding position to close, so that the seeds fall on the knitting belt;

[0035] After the seeds in the communication hole 12 at the corresponding position on the sucker 1 fall off and the solenoid valve Ⅰ 18 is closed, the solenoid valve Ⅱ 110 is opened, and the communication hole 12 is no longer communicated with the air extraction hole 19. Under the action of the elastic force of the spring 14, the sliding cylinder 31 is pushed to partially expose outside the sucker 1 (as shown in Figure 7The state of the sliding device 3 at the position inclined left and downward (as shown), when a part of the sliding cylinder 31 is exposed outside the suction cup 1, the perforation II 34 on the side of the sliding cylinder 31 communicates with the arc-shaped channel 13 at the corresponding position, and the baffle 37 is located between the perforation I 32 and the seed 2, so that both sides of the baffle 37 are communicated through the groove 36 to ensure that the seeds can be normally adsorbed (such as Figure 7 The state of the sliding cylinder 31 at the position parallel to the horizontal plane (as shown), when the sliding cylinder 31 is completely inside the suction cup 1, the perforation I 32 communicates with the arc-shaped channel 13 at the corresponding position, and the baffle 37 is located between the perforation I 32 and the perforation II 34, separating the perforation I 32 from the perforation II 34 (such as Figure 7 The state of the sliding cylinder 31 at the position inclined left and downward (as shown), so that Figure 7 When the sliding cylinder 31 in the horizontal state in the figure is adsorbing seeds, the adsorption device also sucks air from Figure 7 the sliding cylinder 31 at the lower left. Figure 7 The air in the sliding cylinder 31 at the lower left in the figure enters through the round hole 17 communicating with it, and flushes the anti-dust net I 16, so that the impurities on the anti-dust net I 16 flow along with the air to the Figure 7 arc-shaped channel 13 communicating with the perforation II 34 on the side of the sliding cylinder 31 at the lower left until it is blocked by the anti-dust net II 33 in the perforation I 32 on the side of the sliding cylinder 31 in the horizontal direction, completing the cleaning of the anti-dust net I 16 in the communication hole 12 at the lower left position in the figure, so that each anti-dust net I 16 moving to Figure 7 the communication hole 12 at the lower left position will be cleaned of impurities, so as to slow down the cleaning frequency and without disassembling the suction cup 1, ensuring the working efficiency (the direction of gas flow is as shown by the arrow in Figure 7 the figure); Figure 7 When the sliding cylinder 31 at the lower left position in the figure moves to

[0036] Figure 7 the horizontal position, the solenoid valve I 18 is opened, the solenoid valve II 110 is closed, and the sliding cylinder 31 is blocked by the limit plate 5 and moves into the communication hole 12, so that the perforation II 34 is disconnected from the arc-shaped channel 13, while Figure 7 when the sliding cylinder 31 at the horizontal position in the figure rotates with the suction cup 1 to the upper left, since Figure 7 the perforation II 34 is disconnected from the arc-shaped channel 13 after the sliding cylinder 31 at the lower left position in the figure moves to the horizontal position, when the sliding cylinder 31 at the horizontal position rotates with the suction cup 1 to the upper left, due to the air being pumped away by the pumping device, the impurities are retained in the perforation I 32 under the action of negative pressure, and under the action of negative pressure, the sliding cylinder 31 is always located in the communication hole 12, compressing the spring 14; Figure 7 When the sliding cylinder 31 at the lower left position in the figure moves to the horizontal position, the solenoid valve I 18 is opened, the solenoid valve II 110 is closed, and the sliding cylinder 31 is blocked by the limit plate 5 and moves into the communication hole 12, so that the perforation II 34 is disconnected from the arc-shaped channel 13. When the sliding cylinder 31 at the horizontal position rotates with the suction cup 1 to the upper left, since the perforation II 34 is disconnected from the arc-shaped channel 13 after the sliding cylinder 31 at the lower left position moves to the horizontal position, after the sliding cylinder 31 at the horizontal position rotates with the suction cup 1 to the upper left, due to the air being pumped away by the pumping device, the impurities are retained in the perforation I 32 under the action of negative pressure, and under the action of negative pressure, the sliding cylinder 31 is always located in the communication hole 12, compressing the spring 14;

[0037] After the sliding cylinder 31 moves to the lowest position of the suction cup 1, the solenoid valve I 18 closes. Since the seeds 2 are of uncertain shape, there is a gap between the seeds 2 and the adsorption end of the sliding cylinder 31. Under the elastic force of the spring 14, the sliding cylinder 31 is pushed out, causing the seeds 2 to fall on the woven belt. When the sliding cylinder 31 rotates again to Figure 7 After the lower left side, the impurities in the perforation I 32 fall off the perforation I 32 under the action of gravity;

[0038] The dust-proof net III 111 is always located outside the suction cup 1 for easy cleaning at any time. The dust-proof net II 33 is located outside the suction cup 1 for some time, which is convenient for workers to clean it at this position, reducing the frequency of disassembling the suction cup 1 for cleaning, saving time and improving work efficiency.

Claims

1. A vacuum suction cup for a seed braiding machine, characterized in that: The invention comprises a cylindrical suction cup (1); the back of the suction cup (1) is provided with an air extraction hole (19); the side of the suction cup (1) is provided with a plurality of connecting holes (12) connected with the air extraction hole (19); the back of the suction cup (1) is provided with a plurality of circular holes (17) connected with the corresponding connecting holes (12); each of the connecting holes (12) is also fixedly connected with a dustproof net I (16); the inner wall of the connecting hole (12) is also fixedly connected with a fixing ring (15); the fixing ring (15) is connected with a sliding device (3) via a spring (14); the sliding device (3) and the connecting hole (12) are slidably matched; the inside of the suction cup (1) is also provided with an arc-shaped channel (13) for connecting adjacent connecting holes (12).

2. A vacuum suction cup for a seed braiding machine according to claim 1, characterized in that: The sliding device (3) includes a slide cylinder (31); the slide cylinder (31) is slidably matched with the connecting hole (12), and one end of the slide cylinder (31) located inside the connecting hole (12) is also fixedly connected to the spring (14); the end of the slide cylinder (31) located outside the connecting hole (12) is used to adsorb seeds (2); one side of the slide cylinder (31) is provided with a perforation I (32), and the other side is provided with a perforation II (34), and the inside of the perforation I (32) is fixedly connected with a dustproof net II (33); the slide cylinder (31) is also provided with a slideway (35), and the inside of the slide cylinder (31) is provided with a baffle (37), and the side of the baffle (37) is fixedly connected with a connecting rod that is slidably matched with the slideway (35), and the other end of the connecting rod is fixedly connected to the inner wall of the connecting hole (12); the side of the slide cylinder (31) provided with the perforation II (34) is also provided with a groove (36).

3. A vacuum suction cup for a seed braiding machine according to claim 2, characterized in that: The distance between the perforation I (32) and the seed adsorption end of the slide cylinder (31) is smaller than the distance between the perforation II (34) and the seed adsorption end.

4. A vacuum suction cup for a seed braiding machine according to claim 3, characterized in that: When the slide cylinder (31) slides, the perforation I (32) and the perforation II (34) are connected to the arc-shaped channel (13) on the corresponding side.

5. A vacuum suction cup for a seed braiding machine according to claim 4, characterized in that: A position sensor (11) is provided on the outer circumferential surface of the suction cup (1) and on the side of each of the communicating holes (12).

6. A vacuum suction cup for a seed braiding machine according to claim 5, characterized in that: Each of the connecting holes (12) is provided with a solenoid valve I (18), each of the circular holes (17) is provided with a solenoid valve II (110), and the solenoid valve I (18), the solenoid valve II (110), and the position sensor (11) are all electrically connected to the controller; the back of the suction cup (1) is fixedly connected with a dustproof net III (111) covering the corresponding circular hole (17).

7. A vacuum suction cup for a seed braiding machine according to claim 6, characterized in that: When the slide cylinder (31) is completely located inside the connecting hole (12), the spring (14) is in a compressed state.

8. The vacuum suction cup for a seed braiding machine according to claim 4, characterized in that: When the slide tube (31) is completely located inside the connecting hole (12), the baffle (37) is located between the perforation I (32) and the adsorption end of the slide tube (31); when the microphone (31) is partially located outside the connecting hole (12), the baffle (37) is located between the perforation I (32) and the perforation II (34).

9. A vacuum suction cup for a seed braiding machine according to claim 8, characterized in that: A feed trough (4) is provided on the side of the suction cup (1), and the lower end of the feed trough (4) is fixedly connected to a limiting plate (5); an output shaft (6) is fixedly connected to the front center of the suction cup (1); and the air extraction hole (19) is connected to an air extraction device.

10. The method for using a vacuum suction cup for a seed braiding machine according to claim 9, characterized in that: The method of use comprises the following steps: Step 1: After the suction cup (1) rotates to contact the feed slot (4), the position sensor (11) feeds back a signal to the controller, and the controller controls the electromagnetic valve I (18) in the connecting hole (12) at the corresponding position to open, and the vacuum device sucks air to adsorb the seeds (2) onto the slide cylinder (31); Step 2: The driving motor connected to the output shaft (6) drives the suction cup (1) to rotate, so that the connecting hole (12) for adsorbing the seed (2) rotates to a vertical downward position, and the position sensor (11) feeds back a signal to the controller, and the controller controls the electromagnetic valve I (18) in the connecting hole (12) at the corresponding position to close, so that the seed falls on the braided belt; Step 3: After the seeds fall off from the connecting holes (12) at the corresponding positions on the suction cup (1), the suction cup (1) moves to the position of the feed trough (4) and performs dust removal.

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