Mulching film cutting device for film mulching seeder

Abstract

The utility model discloses a mulching film cutting device for a film mulching seeder. The mulching film cutting device structurally comprises a vertical support, a transverse support, a lead screw driving motor, a ball screw, a lead screw sliding block, an electric push-pull rod, a cutter assembly, a limiting switch, a blade and a film pressing plate. The ball screw is fixed on the two vertical supports and sleeved with the lead screw sliding block, and one side of the ball screw is axially connected with the coupler and the lead screw driving motor. One end of the electric push-pull rod is connected with the lead screw sliding block; and the other telescopic end is connected with the cutter assembly. The cutting device is installed on the film mulching seeder, an electric button is manually operated, a forward and reverse rotation lead screw motor drives the whole cutter assembly to move left and right through cooperation of a ball screw and a lead screw sliding block, and a mulching film can be cut off by rotating a blade. As the film pressing plates are arranged on the two sides of the blade, the mulching film can be flattened during cutting, and the flatness of a notch is guaranteed. The cutting device is high in working efficiency, the height between the cutter assembly and the mulching film can be adjusted according to different mulching films, and the cutting device is suitable for being used in different land parcels.

Description

Technical Field

[0001] The utility model relates to a mulch film for an agricultural seeder, in particular to a mulch film cutting device for a mulch seeder. Background Art

[0002] Film mulching cultivation of crops has become an important measure to increase agricultural production. With the comprehensive promotion of film mulching cultivation technology, the mechanization of film mulching cultivation has also developed rapidly. Various crop sowing operations have corresponding film mulching seeders, which can not only improve the quality of film mulching operations and meet agricultural technical requirements, but also significantly improve labor productivity.

[0003] However, a common problem with the current mulching seeder is that it is not equipped with an automatic film disconnection device. When the machine reaches the end of the field, it must stop and the mulch must be cut manually with scissors before it can continue to work. Generally, manual cutting of the mulch requires two people, which is time-consuming and labor-intensive. At present, it is urgent to develop a mulch cutting device that is compatible with the mulching seeder, which requires a fast cutting speed, no tearing on the cut section, and no uneven edges. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a mulch film cutting device for a mulch film planter. The mulch film cutting device realizes semi-mechanized cutting operation to solve the problems that the mulch film cutting of the mulch film planter on the market currently relies on manual operation, which is inefficient, has poor cutting quality, and cannot meet the requirements of agronomic technical standards. It effectively solves the problems that the mulch film cut by manual operation is easy to be damaged and has high labor intensity.

[0005] The technical problem to be solved by the utility model is achieved by the following structure: a ground film cutting device for a mulching seeder, the structure comprising a vertical support, a screw drive motor, a horizontal support, a ball screw, a screw slider, and a cutter assembly.

[0006] The ground film cutting device is installed on the rear end frame of the film covering mechanism of the film covering planter through a vertical support and a horizontal support.

[0007] The ball screw is fixed on two vertical brackets through a ball screw support, a screw support pad and a fixing bolt nut. On the ball screw, a sliding sleeve is provided with a screw slider. A coupling and a screw drive motor are axially connected on one side of the ball screw. The function of the ball screw is to drive the screw slider to slide left and right. Since the screw drive motor can rotate forward and reverse under the control of the circuit. Therefore, the ball screw can rotate forward and reverse and drive the screw slider to slide left and right.

[0008] The horizontal support is installed on the upper end of the vertical support, and the lower end thereof is open.

[0009] One end of the electric push-pull rod is connected to the lead screw slider through a connecting plate and a fixing bolt and nut; the other end of the telescopic end is connected to the cutter assembly through a fixing bolt and nut. The function of the electric push-pull rod is to extend the cutter assembly downward to the ground film when it is necessary to cut the ground film, and to retract the cutter assembly upward at other times. The extension length can also be adjusted manually.

[0010] The cutter assembly structure includes a left blade bracket, a right blade bracket, a blade, a micro DC motor, and a film pressing plate. Its function is to drive the blade to cut the ground film. The upper ends of the left blade bracket and the right blade bracket are respectively installed on both sides of the electric push-pull rod telescopic rod by fixing bolts and nuts, and a micro motor is installed at the lower end of the right blade bracket, and a blade is installed at the shaft end of the micro DC motor.

[0011] The blade is circular, with saw teeth processed on the outer edge, the tooth tip angle is 60° to 80°, the number of teeth is 12 to 15, and the tooth height is 3mm to 4mm.

[0012] The film pressing plate is installed at the lower ends of the left blade bracket and the right blade bracket through fixing bolts and nuts. Its function is to flatten the films on both sides of the blade when the blade cuts the film, so that the blade can cut the film smoothly and ensure the flatness of the incision.

[0013] The upper ends of the two vertical brackets are respectively equipped with limit switches, which are used to control the left and right travel of the lead screw slider.

[0014] The working principle of the mulching film cutting device for the mulching seeder is as follows: when the mulching seeder reaches the end of the field and needs to cut off the mulching film, the manual operation button starts the electric push-pull rod to move downward until the blade of the cutter assembly touches the edge of the mulching film, and then the micro DC motor is started to rotate, driving the blade to rotate and start cutting the mulching film; then the driving motor button is pressed, the circuit is turned on, and the driving motor drives the ball screw to rotate forward, and at the same time drives the screw slider, the electric push-pull rod and the cutter assembly to move to the other side of the mulching film and cut the mulching film at the same time; when the cutter assembly moves to the other side of the mulching film and completely cuts off the mulching film, the screw slider touches the right limit switch, the circuit is interrupted, and the cutter assembly and the micro motor stop moving and rotating. Then the driving motor button is manually pressed to make reverse movement, the ball screw rotates in the opposite direction, and drives the screw slider and the cutter assembly to return to the left to the initial position until the screw slider touches the left limit switch, the circuit is closed, and the screw slider and the cutter assembly stop moving.

[0015] The advantages of this mulching film cutting device for mulching seeder are:

[0016] 1. This cutting device can adjust the height between the cutter assembly and the ground film according to different ground films, and is suitable for use in different plots;

[0017] 2. During the cutting process, the cutter assembly can move left and right along the direction of the ground film. Through the cooperation of the ball screw and the screw slider, the entire cutter assembly is driven to move left and right, effectively ensuring that the blade completely cuts the ground film;

[0018] 3. The cutting device is also provided with a film pressing plate. Before cutting, the film is first pressed flat by the film pressing plate to ensure smooth cutting and the flatness of the incision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a mulch film cutting device for a mulch seeding machine

[0020] Figure 2 A side view of a mulch cutting device for a mulch seeding machine

[0021] Figure 3 yes Figure 1 Middle A view

[0022] Figure 4 Schematic diagram of blade structure

[0023] Description of Figure Number

[0024] 1 vertical bracket 2 screw motor 3 coupling 4 ball screw support 5 ball screw 6 cross bracket 7 electric push-pull rod 8 screw slider 9 screw support pad 10 limit switch 11 cutter assembly 12 connecting plate 13 fixing bolts and nuts

[0025] 11-1 Left blade support 11-2 Right blade support 11-3 Blade 11-4 Micro DC motor 11-5 Film pressing plate DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solution of the utility model, the mulch film cutting device for the mulching seeder is described in detail below in conjunction with the accompanying drawings, so that its advantages and features can be more easily understood by those skilled in the art, thereby making a clearer definition of the protection scope of the utility model.

[0027] like Figure 1 , Figure 2 As shown, the structure of the mulching film cutting device for the mulching seeding machine includes a vertical support 1, a screw drive motor 2, a horizontal support 6, a ball screw 5, a screw slider 8, and a cutter assembly 11.

[0028] The mulch film cutting device is installed on the rear end frame of the mulching mechanism of the mulching seeder through a vertical support 1 and a horizontal support 6.

[0029] The ball screw 5 is fixed on the two vertical brackets 1 through the ball screw support 4, the screw support pad 9 and the fixing bolt nut 13. On the ball screw 5, a screw slider 8 is slidably mounted. A coupling 3 and a screw drive motor 2 are axially connected on one side of the ball screw 5.

[0030] The horizontal support 6 is installed on the upper end of the vertical support 1, and its lower end is open.

[0031] like Figure 3 As shown, one end of the electric push-pull rod 7 is connected to the lead screw slider 8 through a connecting plate 12 and a fixing bolt and nut 13; the other end of the telescopic end is connected to the cutter assembly 11 through a fixing bolt and nut 13.

[0032] The structure of the cutter assembly 11 includes a left blade support 11-1, a right blade support 11-2, a blade 11-3, a micro DC motor 11-4, and a film pressing plate 11-5.

[0033] like Figure 4 As shown, the blade 11-3 is circular, with serrations processed on the outer edge, a tooth tip angle of 60° to 80° (α), 12 to 15 teeth, and a tooth height of 3 mm to 4 mm (H).

[0034] The film pressing plate 11 - 5 is installed at the lower ends of the left blade bracket 11 - 1 and the right blade bracket 11 - 2 through fixing bolts and nuts 13 .

[0035] Limit switches (10) are respectively installed on the upper ends of the two vertical brackets (1).

Claims

1. A mulch film cutting device for a mulch film seeding machine, which is installed on the rear end frame of the mulch film mechanism of the mulch film seeding machine through a vertical support (1) and a horizontal support (6), and the structure comprises a vertical support (1), a screw drive motor (2), a horizontal support (6), a ball screw (5), an electric push-pull rod (7), a screw slider (8), and a cutter assembly (11), characterized in that: The ball screw (5) is fixed on the two vertical brackets (1) through a ball screw support (4), a screw support pad (9) and a fixing bolt nut (13); a screw slider (8) is slidably mounted on the ball screw (5); and one side of the ball screw (5) is axially connected to a coupling (3) and a screw drive motor (2); The horizontal support (6) is mounted on the upper end of the vertical support (1), and its lower end is open; One end of the electric push-pull rod (7) is connected to the lead screw slider (8) via a connecting plate (12) and a fixing bolt nut (13); the other telescopic end is connected to the cutter assembly (11) via a fixing bolt nut (13); The cutter assembly (11) structure comprises a left blade support (11-1), a right blade support (11-2), a blade (11-3), a micro DC motor (11-4), and a film pressing plate (11-5); The film pressing plate (11-5) is installed on the lower ends of the left blade support (11-1) and the right blade support (11-2) through fixing bolts and nuts (13); Limit switches (10) are respectively installed on the upper ends of the two vertical brackets (1).

2. A mulch film cutting device for a mulch seeding machine as claimed in claim 1, characterized in that: The blade (11-3) is disc-shaped, with saw teeth processed on the outer edge, a tooth tip angle of 60° to 80°, 12 to 15 teeth, and a tooth height of 3mm to 4mm.

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