Conjugate cam type residual film recycling machine picking device and working method

Abstract

The invention discloses a conjugate cam type residual film recycling machine picking device and a working method, the conjugate cam type residual film recycling machine picking device comprises a roller, the roller is fixedly installed on a center shaft, the roller is rotatably installed on a residual film recycling rack through the center shaft, conjugate cams are installed on the residual film recycling rack and at the two ends of the roller, and the center shaft is parallel to a spike tooth shaft; a plurality of spike teeth are mounted on the spike tooth shaft; the two ends of the spike tooth shaft extend out of the roller, the spike tooth shaft is rotationally connected to end plates at the two ends of the roller, the two ends of the spike tooth shaft are connected with the roller connecting device, the roller connecting device comprises a roller connecting boss, a first roller and a second roller, and the two sides of the roller connecting boss are connected with the first roller and the second roller through roller connecting arms. And the first roller and the second roller are in sliding fit with the conjugate cam so as to swing back and forth relative to the roller, so that the spike teeth extend or retract along access holes formed in the roller. The roller is prevented from being wound with a film in the picking operation process, and the operation stability and the operation quality of the machine tool are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland residual film recycling, and particularly to a conjugate cam type residual film recycling machine picking device and a working method thereof. Background Art

[0002] The current area of farmland mulching cultivation in China has reached 300 million mu. Mulching cultivation is widely used in cold regions, which can increase soil temperature, conserve water, soil, and fertilizer, and improve fertilizer efficiency. Although the mulching cultivation technology has promoted agricultural development, the residual film in the soil is difficult to degrade, causing serious pollution and damage to the soil.

[0003] The drum type residual film recycling machine is one of the widely used models. However, the existing technology lacks the effective combination of agricultural machinery, agronomy, and agricultural film. The swing of the spike teeth is often controlled by a spring for reset, with a complex structure, poor movement accuracy, and poor durability and reliability of the device, resulting in problems such as film entanglement and poor reliability. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a conjugate cam type residual film recycling machine picking device and a working method thereof, which avoid film entanglement during the picking operation of the drum and ensure the stability and operation quality of the machine.

[0005] The present invention achieves the above technical objectives through the following technical means.

[0006] A conjugate cam type residual film recycling machine picking device includes a drum, which is fixedly installed on a central shaft. The drum is rotationally installed on the residual film recycling machine frame through the central shaft. Conjugate cams are installed on the residual film recycling machine frame at both ends of the drum. The central shaft is parallel to the spike tooth shaft, and several spike teeth are installed on the spike tooth shaft. Both ends of the spike tooth shaft extend out of the drum, and the spike tooth shaft is rotationally connected to the end plates at both ends of the drum. Both ends of the spike tooth shaft are respectively connected to a roller connecting device. The roller connecting device includes a roller connecting boss, a first roller, and a second roller. The two sides of the roller connecting boss are connected to the first roller and the second roller through roller connecting arms. The first roller and the second roller are in sliding cooperation with the conjugate cam to swing back and forth relative to the drum, so that the spike teeth extend into or retract from the inlet and outlet holes opened on the drum.

[0007] In the above solution, the conjugate cam includes a first cam and a second cam, and the first cam and the second cam are respectively in sliding cooperation with the first roller and the second roller.

[0008] In the above solution, the spike tooth shaft is connected to the roller connecting boss, and the spike tooth shaft drives the roller connecting boss to rotate together.

[0009] In the above solution, the drum includes several arc plates, the number of arc plates is the same as the number of spike tooth shafts, the several arc plates form a circumferential structure, and arc-shaped inlet and outlet holes are provided on each of the several arc plates.

[0010] In the above solution, there are several spike tooth shafts, which are distributed centered on the central axis.

[0011] In the above solution, the arc plate has a structure that is convex in the middle and bent downward on both sides.

[0012] In the above solution, the arc plates are detachably connected; adjacent arc plates are connected by a support plate.

[0013] In the above solution, the spike teeth are connected to the spike tooth shafts by bolts.

[0014] In the above solution, the conjugate cam and the first roller and the second roller are symmetrically arranged on both sides.

[0015] Working method of the conjugate cam type residual film picking-up device: The roller connecting device makes a circular motion along with the drum. At the same time, under the combined action of the sliding fit of the first roller, the second roller and the conjugate cam in the roller connecting device, it swings reciprocally relative to the drum, so that each spike tooth extends or retracts from the drum through the inlet and outlet holes. After the spike teeth extend out of the drum, as the drum rotates, the residual film can be hung on the spike teeth. As the drum continues to rotate, the spike teeth gradually retract into the drum, and the residual film hung on the spike teeth falls off for collection; the relative reciprocating swing of the spike tooth shaft relative to the drum is jointly controlled by the first roller, the second roller, the roller connecting rocker arm and the conjugate cam, so as to realize the extension or retraction of the spike teeth fixedly connected to the spike tooth shaft. The periodic extension and retraction of the spike teeth prevent the residual film from winding around the drum, facilitating the collection of the residual film.

[0016] Beneficial effects:

[0017] 1. In the present invention, a conjugate cam mechanism is composed of a roller connecting rocker arm, a first roller, a second roller, a first cam, a second cam and a frame. The roller connecting rocker arm makes a full rotation along with the drum. At the same time, under the combined action of the first roller, the second roller and the conjugate cam, it swings back and forth relative to the drum, thereby realizing the extension or retraction of the spike teeth fixed on the spike tooth shaft from the inlet and outlet holes on the arc plate. The periodic extension or retraction of the spike teeth prevents the residual film from winding around the drum, ensuring that the machine can maintain efficient and reliable operation.

[0018] 2. The conjugate cam in the present invention includes a first cam and a second cam. The swing of the two rollers is caused by the cam pairs formed by the two rollers and the two cams, thereby controlling the extension or retraction of the spike teeth. Therefore, the structure is more stable.

[0019] 3. The structure of the present invention is simple and reliable, avoiding the winding of the film on the drum during the picking-up process, and ensuring that the machine can maintain efficient and reliable operation. Description of the drawings

[0020] Figure 1 This is a schematic structural diagram of the double-roller conjugate cam type residual film picking-up device of the present invention;

[0021] Figure 2 This is a schematic diagram of the working principle of the residual film picking-up device in the present invention;

[0022] Figure 3 This is a schematic diagram of the nail tooth arrangement structure in the present invention;

[0023] Figure 4 This is a schematic structural diagram of the drum in the present invention;

[0024] Figure 5 This is a schematic structural diagram of the roller connecting rocker arm in the present invention;

[0025] Figure 6 This is a schematic structural diagram of the conjugate cam pair in the present invention;

[0026] Reference numerals:

[0027] 1 - drum, 2 - nail teeth, 3 - end plate, 4 - arc plate, 5 - support plate, 6 - first roller, 7 - second roller, 8 - first cam, 9 - second cam, 10 - roller connecting device, 11 - central shaft, 12 - nail tooth shaft, 13 - roller connecting boss, 14 - roller connecting arm, 15 - inlet and outlet hole. Detailed implementation manners

[0028] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The purpose of the present invention is to provide a double-roller conjugate cam type residual film picking-up device to solve the problems existing in the prior art, avoid film entanglement during the picking-up process of the drum, and has a simple structure and high working efficiency.

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Combined with the attached Figures 1-6 As shown, this embodiment provides a double-roller conjugate cam type residual film picking-up device, including a drum 1, a picking-up assembly, and a conjugate cam. The drum 1 is rotationally installed on the frame of the residual film recycling machine through a central shaft 11. The conjugate cam is fixedly connected to the frame of the residual film recycling machine. A plurality of picking-up assemblies are connected to the drum 1 along the circumferential direction. The picking-up assembly includes spike teeth 2, a first roller 6, a second roller 7, a roller connecting device 10, and a spike tooth shaft 12. A roller connecting boss 13 and a roller connecting arm 14 are fixedly connected to form the roller connecting device 10. The roller connecting device 10 is fixedly connected to the spike tooth shaft 12. The spike tooth shaft 12 is parallel to the central shaft 11 and is rotationally connected to the drum 1. A plurality of spike teeth 2 are fixedly connected to the spike tooth shaft 12 along the axial direction. The first roller 6 and the second roller 7 are rotationally connected to the roller connecting rocker arm 10. On the outer peripheral surface of the drum 1, there are inlet and outlet holes 15 corresponding to each spike tooth 2 respectively. The roller connecting device 10 makes a circular motion along with the drum 1, and at the same time, under the combined action of the first roller 6, the second roller 7, and the conjugate cam, it swings back and forth relative to the drum 1, so that each spike tooth 2 extends or retracts from the drum 1 through the inlet and outlet holes 15.

[0034] During operation, the roller connecting device 10 makes a circular motion along with the drum 1. Meanwhile, under the combined action of the first roller 6, the second roller 7 and the conjugate cam, it swings reciprocally relative to the drum 1, causing each spike tooth 1 to extend or retract from the drum 1 through the access hole 15. After the spike tooth 2 extends from the drum 1, as the drum 1 rotates, the residual film can be hooked on the spike tooth 2. As the drum 1 continues to rotate, the spike tooth 2 gradually retracts into the drum 1, and the residual film hooked on the spike tooth 2 drops off for collection. The reciprocal swing of the spike tooth shaft 12 relative to the drum 1 is jointly controlled by the first roller 6, the second roller 7, the roller connecting rocker arm 10 and the conjugate cam, thereby realizing the extension or retraction of the spike tooth 2 fixedly connected to the spike tooth shaft 12. The structure is simple and the manufacturing cost is low. The periodic extension and retraction of the spike tooth 2 prevent the residual film from winding around the drum 1 and facilitate the collection of the residual film.

[0035] In this embodiment, the drum 1 includes end plates 3, arc plates 4, support plates 5 and a central shaft 11. The two end plates 3 are respectively and fixedly connected to both ends of the central shaft 11. The number of arc plates 4 is equal to and corresponds one by one to the number of pickup assemblies. The access holes 15 are arranged on each arc plate 4. The arc plates 4 and the support plates 5 are alternately connected in sequence along the circumferential direction to form the main cylindrical structure of the drum 1. Each support plate 5 is fixedly connected to the two end plates 3 respectively, and the central shaft 11 is fixedly connected to the two end plates 3 and coaxially arranged. The arc plates 4 and the support plates 5 form the cylindrical structure of the drum 1, and the loading and unloading process is simple, which is convenient for the maintenance and repair of the machine.

[0036] In this embodiment, the arc plates 4 and the support plates 5 are alternately arranged along the axial direction and fixedly connected to the end plates 3 by bolts to form the main structure of the drum 1. A number of reinforcing circular plates are also fixedly connected at intervals on the central shaft 11 between the two end plates 3. The inner side of each support plate 4 is fixedly connected to the outer peripheral surface of each reinforcing circular plate, improving the strength of the drum 1 and ensuring the structural stability during operation.

[0037] In this embodiment, the spike tooth 2 is fixedly connected to the spike tooth shaft 12 by bolts, which is convenient for the disassembly and assembly of the spike tooth 2 and facilitates replacement.

[0038] In this embodiment, the conjugate cam consists of two inner and outer cams, which respectively form cam pairs with the first roller 6 and the second roller 7. The conjugate cam is symmetrically arranged on both sides with respect to the first roller 6 and the second roller 7.

[0039] In this embodiment, the conjugate cam is symmetrically arranged on both sides with respect to the first roller 6 and the second roller 7 to improve the structural stability of the double-roller conjugate cam type residual film pickup device.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A conjugate cam type residual film recovery machine picking device, characterized in that: The invention comprises a roller (1), wherein the roller (1) is fixedly mounted on a central shaft (11), and the roller (1) is rotatably mounted on a residual film recovery frame via the central shaft (11). Conjugate cams are mounted on the residual film recovery frame and at both ends of the roller (1). The central shaft (11) is parallel to a spike-tooth shaft (12), and a plurality of spike teeth (2) are mounted on the spike-tooth shaft (12). Both ends of the spike-tooth shaft (12) extend out of the roller (1), and the spike-tooth shaft (12) is rotatably connected to end plates (3) at both ends of the roller (1). The spike-tooth shaft (12) The two ends are respectively connected to a roller connection device (10), the roller connection device (10) comprising a roller connection boss (13), a first roller (6) and a second roller (7), the two sides of the roller connection boss (13) are connected to the first roller (6) and the second roller (7) via roller connection arms (14), the first roller (6) and the second roller (7) are slidably matched with a conjugate cam so as to swing back and forth relative to the roller (1), so that the spike teeth (2) extend in or out along an inlet and outlet hole (15) provided on the roller (1).

2. The conjugate cam type residual film recovery machine picking device according to claim 1 is characterized in that: The conjugate cam comprises a first cam (8) and a second cam (9), and the first cam (8) and the second cam (9) are respectively slidably matched with the first roller (6) and the second roller (7).

3. The conjugate cam type residual film recovery machine picking device according to claim 1 is characterized in that: The spike-tooth shaft (12) is connected to the roller connecting boss (13), and the spike-tooth shaft (12) drives the roller connecting boss (13) to rotate together.

4. The conjugate cam type residual film recovery machine picking device according to claim 1 is characterized in that: The roller (1) comprises a plurality of arc plates (4), the number of the arc plates (4) being the same as the number of the spike shafts (12), the plurality of arc plates (4) forming a circular structure, and arc-shaped inlet and outlet holes (15) being provided on the plurality of arc plates (4).

5. The conjugate cam type residual film recovery machine picking device according to claim 1 is characterized in that: There are several spike shafts (12), which are distributed around the central axis (11).

6. The conjugate cam residual film picking device according to claim 1, characterized in that: The arc plate (4) is a structure with a convex middle and downwardly curved sides.

7. The conjugate cam residual film picking device according to claim 1, characterized in that: The arc plates (4) are detachably connected to each other; and adjacent arc plates (4) are connected via a support plate (5).

8. The conjugate cam residual film picking device according to claim 1, characterized in that: The spike teeth (2) are connected to the spike tooth shaft (12) via bolts.

9. The conjugate cam residual film picking device according to claim 1, characterized in that: The conjugate cam is arranged symmetrically with the first roller (6) and the second roller (7).

10. The working method of the conjugate cam residual film picking device according to any one of claims 1 to 9, characterized in that: The roller connecting device (10) moves in a circular motion with the roller (1). At the same time, the first roller (6), the second roller (7) and the conjugate cam in the roller connecting device (10) reciprocate relative to the roller (1) under the joint action of sliding cooperation, so that each spike (1) extends out of or retracts into the roller (1) through the inlet and outlet holes (15). After the spike (2) extends out of the roller (1), the residual film can be attached to the spike (2) as the roller (1) rotates. As the roller (1) continues to rotate, The spike teeth (2) are gradually retracted into the drum (1), and the residual film attached to the spike teeth (2) falls off and is collected; the first roller (6), the second roller (7), the roller connecting rocker arm (10) and the conjugate cam jointly control the spike tooth shaft (12) to swing back and forth relative to the drum (1), thereby realizing the extension or retraction of the spike teeth (2) fixedly connected to the spike tooth shaft (12); the periodic extension and retraction of the spike teeth (2) prevents the residual film from being entangled on the drum (1), thereby facilitating the collection of the residual film.

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