Automatic rope releasing device for rope seeding machine

Abstract

An automatic rope-releasing device for a seed rope seeder relates to the technical field of seed rope sowing, and is used to detect whether there is a lack of seeds during the process of releasing the seed rope. It includes a base, a support assembly, a detection assembly and a conveying assembly, the support assembly includes a fixed support and a movable support, and a reel is provided between the fixed support and the movable support; the detection assembly includes a detection wheel ear plate, and an upper detection wheel and a lower detection wheel located on the upper part of the detection wheel ear plate, and a pre-tightening member is provided between the upper detection wheel and the detection wheel ear plate; the conveying assembly includes a conveying wheel ear plate, and an upper conveying wheel and a lower conveying wheel rotatably mounted on the upper part of the conveying wheel ear plate and arranged up and down, a pressure sensor is provided on the pre-tightening member, and a speed sensor for detecting the rotation speed of the lower conveying wheel is provided on the conveying wheel ear plate, and the speed sensor and the pressure sensor are both connected to the PLC controller signal. The present invention can detect whether there is a lack of seeds during the process of releasing the seed rope.

Description

Technical Field

[0001] The invention relates to the technical field of seed rope sowing, in particular to an automatic rope releasing device for a seed rope sowing machine. Background Art

[0002] Winter wheat is one of the main grain crops in northern my country. Doing a good job in wheat production is of great significance to ensuring national food security. For high wheat yield, precision sowing and reasonable configuration of row spacing and plant spacing can significantly affect the uniformity of plant distribution in the field, thereby affecting its individual development, group ventilation and light conditions, and yield formation. Studies have found that precision sowing of wheat is an important way to increase yield. However, the current sowing machinery cannot achieve single-grain sowing, which often causes uneven distribution of seeds in the soil, resulting in lumps or missing seedlings and broken ridges. Therefore, through single-grain sowing of wheat, effective control of reasonable plant spacing and row spacing is of great significance for improving wheat yield and quality. To achieve single-grain sowing, it is necessary to find a suitable sowing machinery. In order to ensure that the distribution of wheat seeds after sowing meets the requirements of wheat stress resistance and high-yield cultivation, and the distance between seeds is moderate, a multifunctional wheat seed rope single-grain sowing machine was invented, that is, wheat seeds are fixed in a degradable packaging belt with a fixed plant spacing to make a seed rope, and then the seed rope is sown into the soil. Since the seed rope is made by placing individual seeds one by one on the packaging belt, it is difficult to ensure that there will be no missing seeds on the seed rope. Once there is a missing seed, there will be missing seedlings after sowing. Summary of the invention

[0003] The object of the present invention is to provide an automatic rope-releasing device for a rope-seeding machine, which is used to detect whether there is a lack of seeds during the process of releasing the rope.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an automatic rope-releasing device for a rope seeding machine, comprising a base and a supporting assembly, a detecting assembly and a conveying assembly arranged in sequence on the base, the supporting assembly comprising a fixed support and a movable support, the fixed support is fixedly connected to the base, the movable support is movably connected to the base, a reel is provided between the fixed support and the movable support, the seed rope is wound around the reel and is relatively fixed to the reel along the circumferential direction; the detecting assembly comprises a detecting wheel ear plate, and an upper detecting wheel and a lower detecting wheel arranged up and down on the upper part of the detecting wheel ear plate, the lower detecting wheel is rotatably connected to the detecting wheel ear plate, The upper detection wheel is both rotatably connected to the detection wheel ear plate and slidably connected to the detection wheel ear plate up and down. A pre-tightening member is provided between the upper detection wheel and the detection wheel ear plate, and the pre-tightening member causes the upper and lower detection wheels to contact each other. The conveying assembly comprises a conveying wheel ear plate, and an upper conveying wheel and a lower conveying wheel rotatably mounted on the upper part of the conveying wheel ear plate and arranged up and down, wherein the upper conveying wheel is a driving wheel, and the upper conveying wheel contacts the outer wall of the lower conveying wheel. The pre-tightening member is provided with a pressure sensor, and the conveying wheel ear plate is provided with a speed sensor for detecting the rotation speed of the lower conveying wheel, and the speed sensor and the pressure sensor are both connected to the PLC controller signal.

[0005] Furthermore, the movable support is hinged to the base, the maximum rotation angle of the movable support relative to the base is 180 degrees, and bolts are arranged between the movable support and the base.

[0006] Furthermore, the bottom of the movable support has a folded edge, the folded edge is vertically arranged with the movable support, the folded edge is hingedly connected with the base, and the bolt is arranged between the folded edge and the base.

[0007] Furthermore, the side wall of the reel has a positioning rod, and the shape of the center hole of the seed rope reel is the same as the shape of the reel.

[0008] Furthermore, a spring plate is fixed to the side wall of the detection wheel ear plate, the preload member is a spring, one end of the spring is fixedly connected to the spring plate, the other end of the spring is fixed to a slider, the upper detection wheel is rotatably mounted on the slider, and the slider is slidably connected to the detection wheel ear plate up and down.

[0009] Furthermore, a slide groove is provided on the ear plate of the detection wheel, and the wheel axle of the upper detection wheel passes through the slide groove and is slidably connected to the slide groove.

[0010] Furthermore, an upper gear is fixed on the axle of the upper conveying wheel, and a lower gear is fixed on the axle of the lower conveying wheel. The upper gear is meshed with the lower gear, and the upper gear is exactly the same as the lower gear. A motor is fixed on one of the conveying wheel ear plates, and the motor drives the rotation of the lower gear.

[0011] Furthermore, the outer walls of the upper conveying wheel and the lower conveying wheel are both provided with air bags.

[0012] The beneficial effects of the present invention are as follows: the present invention realizes the support of the seed rope roll by setting the support component, realizes the release of the seed rope on the seed rope roll by setting the conveying component, realizes the detection of seeds on the seed rope by the detection component, and further detects the seed missing defects on the seed rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the present invention;

[0014] Figure 2 A top view of the present invention;

[0015] Figure 3 It is the left view of the support assembly;

[0016] Figure 4 It is a schematic diagram of the downward turning process of the movable support;

[0017] Figure 5 It is a schematic diagram of installing the seed rope reel on the reel after the movable support is turned down;

[0018] Figure 6 The figure is a schematic diagram of the installation of the seed rope coiled on the support assembly;

[0019] Figure 7 The main view of the detection component;

[0020] Figure 8 It is the right view of the detection component;

[0021] Fig. 9 It is the front view of the conveying component;

[0022] Fig.10 It is a right side view of the conveying assembly;

[0023] Fig.11 It is a schematic diagram of the positions of the upper and lower conveying wheels;

[0024] Fig.12 It is a schematic diagram of a control system of the present invention;

[0025] In the figure: 1 base, 2 fixed support, 21 reel, 22 positioning rod, 3 movable support, 31 folding edge, 32 bolts, 4 types of rope rolls, 41 types of ropes, 5 conveying wheel ear plates, 51 upper conveying wheel, 52 lower conveying wheel, 53 motor, 54 upper gear, 55 lower gear, 56 airbag, 6 detection wheel ear plates, 61 upper detection wheel, 62 lower detection wheel, 63 slider, 64 spring plate, 65 spring, 66 slide groove. DETAILED DESCRIPTION

[0026] like Figures 1 to 12As shown, the present invention includes a base 1, a supporting component, a conveying component and a detecting component. The present invention is described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 12 As shown, an automatic rope-releasing device for a rope seeding machine includes a base 1 and a supporting component, a detection component and a conveying component sequentially arranged on the base 1, as shown in FIG. Figures 1 to 3 As shown, the support assembly includes a fixed support 2 and a movable support 3, the fixed support 2 is fixedly connected to the base 1, and the movable support 3 is movably connected to the base 1. Specifically, the bottom of the movable support 3 has a folded edge 31, the folded edge 31 is vertically arranged to the movable support 3, the folded edge 31 is hinged to the base 1, the maximum rotation angle of the movable support 3 relative to the base 1 is 180 degrees, and there is a bolt 32 between the folded edge 31 and the base 1, and the relative fixed connection between this side 31 and the base is achieved by the bolt 32.

[0028] like Figure 3 As shown, a reel 21 is rotatably mounted on the fixed support 2, and the seed rope reel 4 is sleeved on the reel 21 and fixed relative to the reel 21 along the circumferential direction. When the seed rope reel 4 needs to be installed, as shown in FIG. Figure 4 As shown, first separate the bolt 32 from the base 1, and then rotate the movable support 3 clockwise, as shown in FIG. Figure 5 As shown, until the movable support 3 rotates 180 degrees, the seed rope roll 4 can be put on the reel 21, and then the movable support 3 is turned counterclockwise, as shown in FIG. Figure 6 As shown, the movable support 3 is parallel to the fixed support 2, and the reel 21 is located between the fixed support 2 and the movable support 3, and is rotatably connected to the fixed support 2 and the movable support 3. When the seed rope reel 4 rotates with the reel 21, the seed rope 41 can be released. To ensure the synchronous rotation between the seed rope reel 4 and the reel 21, that is, relative fixation along the circumferential direction. Figure 2 , Figure 3 As shown, the side wall of the reel 21 has a positioning rod 22 arranged parallel to the reel 21, the shape of the center hole of the seed rope reel 4 is the same as the shape of the reel 21, the center hole of the seed rope reel 4 is a round hole, and a long groove is provided on the side wall of the center hole, and the positioning rod 22 extends into the long groove.

[0029] like Figure 7 , Figure 8As shown, the detection assembly includes a detection wheel ear plate 6, and an upper detection wheel 61 and a lower detection wheel 62 arranged up and down on the upper part of the detection wheel ear plate 6. The lower detection wheel 62 is rotatably connected to the detection wheel ear plate 6, and the upper detection wheel 61 is both rotatably connected to the detection wheel ear plate 6 and slidably connected to the detection wheel ear plate 6 up and down. There is a pre-tightening member between the upper detection wheel 61 and the detection wheel ear plate 6, and the pre-tightening member makes the upper and lower detection wheels contact. Specifically, a spring plate 64 is fixed to the side wall of the detection wheel ear plate 6, and the pre-tightening member is a spring 65. One end of the spring 65 is fixedly connected to the spring plate 64, and the other end of the spring 65 is fixed to a slider 63. The upper detection wheel 61 is rotatably installed on the slider 63, and the slider 63 is slidably connected to the detection wheel ear plate 6 up and down. There is a slide groove 66 on the detection wheel ear plate 6, and the wheel axle of the upper detection wheel 61 passes through the slide groove 66 and is slidably connected to the slide groove 66.

[0030] like Figures 9 to 11 As shown, the conveying assembly includes a conveying wheel lug 5, and an upper conveying wheel 51 and a lower conveying wheel 52 which are rotatably mounted on the upper part of the conveying wheel lug 5 and are arranged up and down, wherein the upper conveying wheel 51 is a driving wheel, and the upper conveying wheel 51 contacts the outer wall of the lower conveying wheel 52. A pressure sensor is provided on the spring 65, and a speed sensor for detecting the rotation speed of the lower conveying wheel 52 is provided on the conveying wheel lug 5, as shown in FIG. Fig.12 As shown, the speed sensor and the pressure sensor are both connected to the PLC controller signal. In order to realize the synchronous rotation of the upper and lower conveying wheels, an upper gear 54 is fixed on the axle of the upper conveying wheel 51, and a lower gear 55 is fixed on the axle of the lower conveying wheel 52. The upper gear 54 is meshed with the lower gear 55, and the upper gear 54 is exactly the same as the lower gear 55. A motor 53 is fixed on one of the conveying wheel ear plates 5, and the motor 53 drives the rotation of the lower gear 55. When the lower gear 55 rotates, the upper gear 54 and the lower gear 55 rotate synchronously, but in opposite directions, and then the upper and lower conveying wheels turn in opposite directions, thereby realizing the transportation of the seed rope 41 located between the upper and lower conveying wheels. In order to increase the friction between the upper and lower conveying wheels and the seed rope 41, as shown Fig.11 As shown, the outer walls of the upper conveying wheel 51 and the lower conveying wheel 52 are provided with air bags 56. When the seeds on the seed rope 41 move between the upper and lower conveying wheels, the air bags 56 are squeezed, which ensures the friction between the seed rope and the seed rope, and ensures the smooth passage of the seed rope.

[0031] The method of using the present invention is described below:

[0032] (1) Install the seed rope roll between the fixed support and the movable support, pull out the end of the seed rope and pass it through the upper and lower detection wheels, and then place the end of the seed rope between the upper and lower conveying wheels;

[0033] (2) Starting the motor to drive the upper and lower conveying wheels to rotate, and then the conveying assembly conveys the seed rope, thereby causing the seed rope to be wound and unwound;

[0034] (3) During the movement of the seed rope between the upper and lower detection wheels, when the seeds on the seed rope pass through the upper and lower detection wheels, the seeds have a certain hardness and will lift up the upper detection wheel 61. At this time, the spring 65 is compressed, and then the pressure sensor detects the change in spring pressure and uploads the detection data to the PLC controller. The speed sensor is used to detect the rotation speed of the lower conveying wheel. When the lower conveying wheel is at a normal rotation speed, the speed of the seed rope moving between the upper and lower detection wheels is constant. At this time, the seeds on the seed rope pass through the upper and lower detection wheels in sequence, and the upper detection wheel moves up so that the pressure change detected by the pressure sensor is constant, such as the pressure change frequency is 1 time / every 5 seconds. When the detected rotation speed of the lower conveying wheel 52 remains unchanged, if the pressure change frequency is detected to be more than 1 time / every 5 seconds, for example, 1 time / every 10 seconds, it indicates that there is a seed position missing.

[0035] The present invention supports the seed rope reel by setting a support component, releases the seed rope on the seed rope reel by setting a conveying component, detects seeds on the seed rope by a detection component, and further detects seed missing defects on the seed rope.

Claims

1. An automatic rope-releasing device for a rope-seeding machine, characterized in that: The invention comprises a base and a supporting assembly, a detecting assembly and a conveying assembly arranged on the base in sequence, the supporting assembly comprises a fixed support and a movable support, the fixed support is fixedly connected to the base, the movable support is movably connected to the base, a reel is provided between the fixed support and the movable support, a seed rope is wound around the reel and is relatively fixed to the reel along the circumferential direction; the detecting assembly comprises a detecting wheel ear plate, and an upper detecting wheel and a lower detecting wheel arranged up and down on the upper part of the detecting wheel ear plate, the lower detecting wheel is rotatably connected to the detecting wheel ear plate, the upper detecting wheel is both rotatably connected to the detecting wheel ear plate and The upper and lower detection wheels are connected to the detection wheel ear plate in an upward and downward sliding manner, and a pre-tightening member is provided between the upper detection wheel and the detection wheel ear plate, and the pre-tightening member makes the upper and lower detection wheels contact each other; the conveying assembly comprises a conveying wheel ear plate, and an upper conveying wheel and a lower conveying wheel which are rotatably mounted on the upper part of the conveying wheel ear plate and are arranged up and down, wherein the upper conveying wheel is a driving wheel, and the upper conveying wheel is in contact with the outer wall of the lower conveying wheel; the pre-tightening member is provided with a pressure sensor, and the conveying wheel ear plate is provided with a speed sensor for detecting the rotation speed of the lower conveying wheel, and the speed sensor and the pressure sensor are both connected with the PLC controller signal; The seed rope reel is installed between the fixed support and the movable support. The end of the seed rope is pulled out and passed through the upper and lower detection wheels, and then the end of the seed rope is placed between the upper and lower conveying wheels. Start the motor to drive the upper and lower conveying wheels to rotate, and then the conveying assembly conveys the seed rope, thereby causing the seed rope to be wound and unwound; During the movement of the seed rope between the upper and lower detection wheels, when the seeds on the seed rope pass through the upper and lower detection wheels, the seeds have a certain hardness and will lift up the upper detection wheel. At this time, the spring is compressed, and then the pressure sensor detects the change in spring pressure and uploads the detection data to the PLC controller. The speed sensor is used to detect the speed of the lower conveying wheel. When the lower conveying wheel is at a normal rotation speed, the speed of the seed rope moving between the upper and lower detection wheels is constant. At this time, the seeds on the seed rope pass through the upper and lower detection wheels in sequence, and the upper detection wheel moves up, so that the pressure change detected by the pressure sensor is constant, such as the pressure change frequency is 1 time / every 5 seconds. When the detected rotation speed of the lower conveying wheel remains unchanged, if the pressure change frequency is detected to be more than 1 time / every 5 seconds, it indicates that a seed position is missing.

2. The automatic rope-releasing device for a rope-seeding machine according to claim 1, characterized in that: The movable support is hinged to the base, the maximum rotation angle of the movable support relative to the base is 180 degrees, and bolts are arranged between the movable support and the base.

3. The automatic rope-releasing device for a rope-seeding machine according to claim 2, characterized in that: The bottom of the movable support is provided with a folded edge, the folded edge is vertically arranged with the movable support, the folded edge is hingedly connected with the base, and the bolt is arranged between the folded edge and the base.

4. The automatic rope-releasing device for a rope-seeding machine according to claim 1, characterized in that: The side wall of the reel is provided with a positioning rod, and the shape of the central hole of the seed rope reel is the same as that of the reel.

5. The automatic rope-releasing device for a rope-seeding machine according to claim 1, characterized in that: A spring plate is fixed to the side wall of the detection wheel ear plate, the preload member is a spring, one end of the spring is fixedly connected to the spring plate, the other end of the spring is fixed to a slider, the upper detection wheel is rotatably mounted on the slider, and the slider is connected to the detection wheel ear plate in an up-and-down sliding manner.

6. The automatic rope-releasing device for a rope-seeding machine according to claim 5, characterized in that: The detection wheel ear plate is provided with a slide groove, and the wheel axle of the upper detection wheel passes through the slide groove and is slidably connected with the slide groove.

7. The automatic rope-releasing device for a rope-seeding machine according to claim 1, characterized in that: An upper gear is fixed on the axle of the upper conveying wheel, and a lower gear is fixed on the axle of the lower conveying wheel. The upper gear meshes with the lower gear, and the upper gear is exactly the same as the lower gear. A motor is fixed on one of the conveying wheel ear plates, and the motor drives the rotation of the lower gear.

8. The automatic rope-releasing device for a rope-seeding machine according to claim 7, characterized in that: The outer walls of the upper conveying wheel and the lower conveying wheel are both provided with air bags.

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