Self-adaptive lifting regulation and control mechanism for bale plucking head

Abstract

The utility model relates to a bale plucking head self-adaptive lifting regulation and control mechanism which comprises a rack, a support vertically installed on the rack in a sliding mode, a detection roller rotatably installed on the support, a spring arranged between the support and the rack and a pressure sensor. The rack is used for being installed at the bale plucking head of a bale plucker, and the support extends out of the rack under the action of gravity in a normal state. The pressure sensor is arranged on the rack, the spring is arranged between the support and the pressure sensor, the two ends of the spring abut against the support and the pressure sensor respectively, and the detection roller is used for abutting against a cotton layer. The pressure between the pressing roller of the bale plucking head and cotton is synchronously detected through the detection roller, when the pressure is too small, it is indicated that the bale plucking head descends insufficiently and needs to descend continuously, when the pressure is too large, it is indicated that the bale plucking head descends excessively and needs to ascend, and self-adaptive adjustment is achieved through cooperation of the pressure sensor, the detection roller and the spring.

Description

Technical Field

[0001] This utility model relates to the technical field of cotton grabbing machines, and in particular to an adaptive lifting and adjusting mechanism for the cotton grabbing head. Background Technology

[0002] The cotton picker is an important piece of equipment in the cotton textile process. It loosens the compacted clumps of cotton after initial combing and then transports them to the subsequent textile equipment.

[0003] A typical cotton grabber includes a cylindrical cotton bin, a mounting shaft located at the center of the cotton bin, and a bracket rotatably mounted on the mounting shaft. A cotton grabbing head is vertically slidably mounted on the bracket. As the bracket rotates, the cotton grabbing head tears the cotton filling the cotton bin and outputs it. At the same time, as the cotton layer in the cotton bin decreases, the cotton grabbing head also decreases accordingly.

[0004] However, the descent distance of the traditional cotton-grabbing head is determined by the number of rotations of the support. The cotton-grabbing head descends a fixed distance for each rotation of the support, and cannot adjust the descent amplitude in real time according to the thickness of the cotton in the cotton bin. This may result in the cotton-grabbing head descending too much, causing excessive tearing force on the cotton and excessive breakage of the cotton fibers, or the cotton-grabbing head descending too little, failing to tear enough cotton from the cotton block. Therefore, there is an urgent need for a cotton-grabbing head that can adaptively adjust according to the thickness of the cotton layer. Utility Model Content

[0005] The purpose of this invention is to provide a cotton-grabbing head adaptive lifting and lowering control mechanism that enables the cotton-grabbing head of a cotton-grabbing machine to adaptively adjust the lowering range according to the thickness of the cotton layer, so as to produce high-quality cotton that is torn off.

[0006] To solve the above-mentioned technical problems, this utility model provides an adaptive lifting and adjusting mechanism for a cotton-grabbing head, including a frame, a support vertically slidingly mounted on the frame, a detection roller rotatably mounted on the support, a spring disposed between the support and the frame, and a pressure sensor. The frame is used to be installed at the cotton-grabbing head of the cotton grabber. Under normal conditions, the support extends out of the frame under the action of gravity. The pressure sensor is disposed on the frame, and the spring is disposed between the support and the pressure sensor. The two ends of the spring respectively abut against the support and the pressure sensor. The detection roller is used to abut against the cotton layer.

[0007] Furthermore, the support includes several sliders, each slider having a light rod on its end face, a spring sleeved on the light rod, the sliders being slidably connected to the frame, and the detection roller being rotatably mounted with several connecting rods, each connecting rod being connected to a slider in a corresponding manner.

[0008] Furthermore, the frame is slidably mounted with a retaining ring, the retaining ring is slidably mounted on the optical rod, the spring abuts against the retaining ring, and the detection end of the pressure sensor abuts against the retaining ring.

[0009] Furthermore, the frame includes a mounting bracket for connecting to the cotton grabbing head and a plurality of mounting cylinders slidably mounted on the mounting bracket. The slider is slidably mounted on the mounting cylinder, the retaining ring is slidably mounted on the mounting cylinder, the pressure sensor is disposed on the mounting cylinder, and the mounting cylinder is provided with a fixing mechanism for fixing to the mounting bracket. The distance between the detection roller and the cotton layer in the cotton grabbing machine can be adjusted by sliding the mounting cylinder.

[0010] Furthermore, the fixing mechanism includes a first connecting rod and a second connecting rod. The mounting bracket has a plurality of elongated holes along the sliding direction of the mounting cylinder, and each elongated hole corresponds to one of the mounting cylinders. The first connecting rod is slidably installed in the elongated hole and is connected to the mounting cylinder. The second connecting rod is connected to all of the first connecting rods. The mounting bracket is threaded with a screw, one end of which is rotatably connected to the second connecting rod. The axis of the screw is parallel to the sliding direction of the mounting cylinder.

[0011] Furthermore, the second link is attached to the mounting bracket.

[0012] Furthermore, the mounting cylinder is rectangular in shape.

[0013] Furthermore, with the direction of the cotton-grabbing head's rotation as the positive direction, the mounting frame is located on one side of the pressure roller of the cotton-grabbing head.

[0014] Furthermore, the mounting bracket is provided with several limiting rings, and the connecting rods slide through the limiting rings one by one.

[0015] The advantages of this invention are as follows: the frame is installed on the cotton-grabbing head, and then the screw is rotated to adjust the length of the bracket extending from the mounting frame, so that the detection roller presses against the cotton layer. When the adjustment is stopped when the pressure detected by the pressure sensor is the same as the pressure of the pressure roller on the cotton when the cotton-grabbing head grabs the cotton, the adjustment stops. As the cotton-grabbing head rotates, the pressure between the pressure roller of the cotton-grabbing head and the cotton is detected synchronously by the detection roller. When the pressure is too low, it means that the cotton-grabbing head has not descended enough and needs to continue to descend. When the pressure is too high, it means that the cotton-grabbing head has descended too much and needs to rise. Adaptive adjustment is achieved through the cooperation between the pressure sensor, the detection roller and the spring. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after the installation frame has been removed.

[0018] Figure 3 This is an exploded view of the present invention, showing the top wall of the mounting cylinder exploded.

[0019] Figure 4 This is a top view of the present invention.

[0020] Figure 5 This is the utility model Figure 4 Sectional view at point BB.

[0021] Reference numerals: 1. Frame; 11. Mounting bracket; 111. Elongated hole; 12. Mounting cylinder; 13. Limiting ring; 2. Bracket; 21. Slider; 22. Smooth rod; 23. Connecting rod; 3. Detection roller; 4. Spring; 5. Pressure sensor; 6. Retaining ring; 7. Fixing mechanism; 71. First connecting rod; 72. Second connecting rod; 73. Screw. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0023] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] like Figure 1-5 The present invention provides an adaptive lifting and adjusting mechanism for a cotton-grabbing head, comprising a frame 1, a support 2, and a detection roller 3.

[0026] The frame 1 includes a mounting bracket 11 and two mounting cylinders 12. The two mounting cylinders 12 are cuboid in shape. When the mounting bracket 11 is fixedly mounted on the cotton-grabbing head, the mounting cylinders 12 are vertically slidably mounted on both sides of the mounting bracket 11. The bracket 2 includes two sliders 21 and two connecting rods 23. The sliders 21 are slidably mounted inside the mounting cylinders 12. A smooth rod 22 is integrally and coaxially mounted on the top wall of the slider 21. The smooth rod 22 slides through the top wall of the mounting cylinder 12.

[0027] A spring 4 is fitted onto the smooth rod 22, and a retaining ring 6 is slidably installed inside the mounting cylinder 12. The smooth rod 22 slides through the retaining ring 6, and the two ends of the spring 4 abut against the top wall of the slider 21 and the bottom wall of the retaining ring 6, respectively. A pressure sensor 5 is fixedly installed on the top wall of the mounting cylinder 12, and the sensing end of the pressure sensor 5 abuts against the top wall of the retaining ring 6.

[0028] The mounting cylinder 12 is provided with a fixing mechanism 7, which includes a first connecting rod 71 and a second connecting rod 72. The mounting bracket 11 has two elongated holes 111 along the sliding direction of the mounting cylinder 12. The elongated holes 111 correspond one-to-one with the mounting cylinder 12. The first connecting rod 71 is slidably installed in the elongated hole 111 and is connected to the mounting cylinder 12. The second connecting rod 72 is fixedly connected to both first connecting rods 71 ​​by bolts. The mounting bracket 11 is threaded with a vertical screw 73, one end of which is rotatably connected to the second connecting rod 72.

[0029] The mounting cylinder 12 can be easily raised, lowered, and fixed by rotating the screw 73. At the same time, the position of the mounting cylinder 12 can be roughly adjusted by adjusting the length of the screw 73, which facilitates subsequent pressure adjustment.

[0030] The smooth rod 22 is cylindrical. Since the spring 4 is sleeved on the smooth rod 22, the spring 4 is not prone to twisting when compressed. At the same time, due to the guiding effect of the cylindrical smooth rod 22, the slider 21 is not prone to jamming when sliding. Furthermore, since the slider 21 is rectangular, the slider 21 and the smooth rod 22 are not prone to rotation when sliding.

[0031] A vertical connecting rod 23 is integrally formed on the bottom wall of the slider 21, and the lower end of the connecting rod 23 slides through the mounting cylinder 12. Two limiting rings 13 are integrally formed on the mounting bracket 11, and the lower ends of the two connecting rods 23 slide coaxially through the limiting rings 13.

[0032] A detection roller 3 is provided between the two connecting rods 23, and the two ends of the detection roller 3 are rotatably connected to the two connecting rods 23 respectively.

[0033] When operation begins, first rotate screw 73 to move mounting cylinder 12 to a suitable position. Then, continue rotating screw 73 to move detection roller 3 against the cotton layer until pressure sensor 5 detects a pressure value exceeding the specified limit. When the cotton-grabbing head is working, mounting bracket 11 drives detection roller 3 to rotate with the cotton-grabbing head. Detection roller 3 provides real-time feedback of the pressure of the cotton-grabbing head on the cotton layer to pressure sensor 5. When pressure sensor 5 detects that the pressure exceeds the specified range, it raises the height of the cotton-grabbing head; conversely, it lowers the height of the cotton-grabbing head, ensuring that the cotton-grabbing head always maintains appropriate pressure on the cotton layer to loosen the cotton.

[0034] Meanwhile, because the rectangular mounting cylinder 12 is not prone to rotation during sliding, and because the limiting ring 13 limits the two connecting rods 23, the detection roller 3 is not prone to twisting when it presses against the cotton layer. As a result, the detection roller 3 is not prone to jamming with the connecting rod 23 during the detection process, making the detection results of the detection roller 3 more accurate.

[0035] Meanwhile, for cotton with different tightness, it is only necessary to adjust the tightness of the detection roller 3 against the cotton by rotating the screw 73 to complete the adaptation, making it widely applicable and suitable for use in the cotton grabbing head of various round cotton grabbing machines.

[0036] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A cotton-gripping head adaptive lifting and adjusting mechanism, characterized in that: The device includes a frame (1), a support (2) vertically slidingly mounted on the frame (1), a detection roller (3) rotatably mounted on the support (2), a spring (4) located between the support (2) and the frame (1), and a pressure sensor (5). The frame (1) is used to be installed at the cotton grabbing head of the cotton grabbing machine. Under normal conditions, the support (2) extends out of the frame (1) under the action of gravity. The pressure sensor (5) is located on the frame (1). The spring (4) is located between the support (2) and the pressure sensor (5). The two ends of the spring (4) abut against the support (2) and the pressure sensor (5) respectively. The detection roller (3) is used to abut against the cotton layer.

2. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 1, characterized in that: The bracket (2) includes several sliders (21), and the end face of the slider (21) is provided with a light rod (22). The spring (4) is sleeved on the light rod (22). The slider (21) is slidably connected to the frame (1). The detection roller (3) is rotatably installed with several connecting rods (23). The connecting rods (23) are connected to the sliders (21) one by one.

3. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 2, characterized in that: The frame (1) is slidably mounted with a retaining ring (6), the retaining ring (6) is slidably mounted on the light rod (22), the spring (4) abuts against the retaining ring (6), and the detection end of the pressure sensor (5) abuts against the retaining ring (6).

4. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 3, characterized in that: The frame (1) includes a mounting bracket (11) for connecting to the cotton grabbing head and a plurality of mounting cylinders (12) slidably mounted on the mounting bracket (11). The slider (21) is slidably mounted on the mounting cylinder (12), the retaining ring (6) is slidably mounted on the mounting cylinder (12), the pressure sensor (5) is provided on the mounting cylinder (12), and the mounting cylinder (12) is provided with a fixing mechanism (7). The fixing mechanism (7) is used to form a fixation with the mounting bracket (11). The distance between the detection roller (3) and the cotton layer in the cotton grabbing machine can be adjusted by sliding the mounting cylinder (12).

5. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 4, characterized in that: The fixing mechanism (7) includes a first connecting rod (71) and a second connecting rod (72). The mounting bracket (11) has a plurality of elongated holes (111) along the sliding direction of the mounting cylinder (12). The elongated holes (111) correspond one-to-one with the mounting cylinder (12). The first connecting rod (71) is slidably installed in the elongated hole (111). The first connecting rod (71) is connected to the mounting cylinder (12). The second connecting rod (72) is connected to all the first connecting rods (71). The mounting bracket (11) is threaded with a screw (73). One end of the screw (73) is rotatably connected to the second connecting rod (72). The axis of the screw (73) is parallel to the sliding direction of the mounting cylinder (12).

6. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 5, characterized in that: The second connecting rod (72) is attached to the mounting bracket (11).

7. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 4, characterized in that: The mounting cylinder (12) is rectangular.

8. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 4, characterized in that: With the direction of the cotton-grabbing head rotation as the positive direction, the mounting frame (11) is located on the side of the pressure roller of the cotton-grabbing head.

9. The adaptive lifting and lowering control mechanism for the cotton-grabbing head according to claim 4, characterized in that: The mounting bracket (11) is provided with several limiting rings (13), and the connecting rod (23) slides through the limiting rings (13) one by one.

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