Tea garden young leaf picking machine

Abstract

The tea garden tender leaf picking machine of the present invention comprises a shell, a profiling picking device, wherein the profiling picking device comprises a profiling picking mechanism, left and right arc tracks, a base, one end of the left and right arc tracks are respectively fixed on the base and the other ends are respectively connected to the corresponding ends of the track connecting plate to form a variable pitch arc track having the first, second and third arc tracks, the widths of the first and third arc tracks are respectively greater than the width of the second arc track, the profiling picking mechanism comprises a fixedly connected left and right fixed plate, a left and right rotating plate respectively connected to the left and right fixed plate through a left and right connecting shaft and capable of rotating, a left and right torsion spring respectively mounted on the middle of the left and right connecting shaft, a matching blade and a knife groove respectively mounted on the left and right rotating plate, a left and right position adjustment convex plate respectively fixed on the left and right rotating plate, and an infrared transmitter and an infrared receiver respectively fixed on the left and right rotating plate. The present invention can ensure the quality of tender leaf picking, save labor and have high picking efficiency.

Description

Technical Field

[0001] The invention belongs to the field of tea production, and in particular relates to a tea garden tender leaf picking machine. Background Art

[0002] Most of the existing tea picking devices are for bulk tea, and the tea leaves still need to be graded after picking, which not only increases the process cost, but also makes it difficult to ensure the quality of the young leaves. At present, there is a lack of special picking machines for young leaves in tea gardens on the market. The picking of young leaves in tea gardens is basically done manually, which is labor-intensive and inefficient. Summary of the invention

[0003] The purpose of the present invention is to overcome the above shortcomings and provide a tea garden tender leaf picking machine which can ensure the quality of tender leaf picking, save labor and have high picking efficiency.

[0004] The objective of the present invention is achieved in this way:

[0005] The tea garden tender leaf picking machine of the present invention comprises a shell, a profile picking device mounted on the shell by a bolt and nut assembly, an operating handle mounted on the shell, a leaf collecting box, and a leaf falling track whose outlet end is connected to the inlet of the leaf collecting box. The profile picking device comprises a profile picking mechanism, a left arc track, a track connecting plate, a right arc track, a base, an angle controller which is respectively mounted on the base by bolt and nut assemblies and fixedly connected to the profile picking mechanism by an angle controller swing arm. One end of the left arc track and the right arc track are respectively fixed to the base by bolt and nut assemblies, and the other ends are respectively connected to the corresponding ends of the track connecting plate by bolt and nut assemblies to form a variable pitch arc track having a first arc track, a second arc track, and a third arc track. The width of the first arc track and the width of the third arc track is respectively greater than the width of the second arc track. The contour picking mechanism comprises a left fixed plate and a right fixed plate fixedly connected by bolt and nut assemblies, a left rotating plate connected to the left fixed plate by a left connecting shaft and rotatable, a right rotating plate connected to the right fixed plate by a right connecting shaft and rotatable, a left torsion spring mounted in the middle of the left connecting shaft, a right torsion spring mounted in the middle of the right connecting shaft, blades and knife grooves that cooperate with each other and are mounted on corresponding positions of the left rotating plate and the right rotating plate respectively by bolt and nut assemblies, a left adjusting convex plate and a right adjusting convex plate respectively fixed on the left rotating plate and the right rotating plate, one end of the left torsion spring and the right torsion spring are respectively mounted on the left adjusting convex plate and the right adjusting convex plate, and an infrared transmitter and an infrared receiver are respectively fixed on the left rotating plate and the right rotating plate.

[0006] The shell body is provided with a hook-shaped card slot, and the leaf collecting box is provided with a card strip matched with the hook-shaped card slot.

[0007] The present invention detects whether the young leaves enter the contour picking mechanism through an infrared signal controller, and controls the action of the angle controller based on the detection signal, thereby controlling the contour picking mechanism to move in a variable pitch arc track. The picking process of the young leaves in the tea garden is realized through the width change of the variable pitch arc track and the adaptive action of the adjustment convex plate. Finally, under the action of the torsion spring, the picked young leaves enter the leaf collecting box through the dropping track, thereby completing the picking process of the young leaves in the tea garden.

[0008] The invention provides a tea garden tender leaf picking machine which can ensure the quality of tender leaf picking, saves labor and has high picking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the right view of the tea garden tender leaf picking machine.

[0010] Figure 2 This is an overhead view of a tea garden tender leaf picking machine.

[0011] Figure 3 It is the front view of the contour picking device.

[0012] Figure 4 It is a top view of the contour picking device.

[0013] Figure 5 It is the front view of the contour picking mechanism.

[0014] Figure 6 It is the right view of the contour picking mechanism.

[0015] Figure 7 This is the front view of the curved track.

[0016] Figure 8 This is a top view of the leaf collection box. DETAILED DESCRIPTION

[0017] See also Figures 1 to 8 The tender leaf picking machine of the present invention comprises a contour picking device, a handle 3, a picking machine housing 2, a leaf collecting box 4, and a leaf falling track 7. The picking machine housing 2 is fixedly connected to the tender leaf contour picking device by a bolt and nut assembly. The picking machine housing 2 is provided with a handle 3 for operation and a hook-shaped card slot 29 for installing the leaf collecting box 4. The leaf collecting box 4 is provided with a protruding card strip 30 that cooperates with the hook-shaped card slot. The leaf collecting box 4 is connected to the picking machine housing through the card strip 30 for easy disassembly. The leaf falling track 7 is fixedly installed on the picking machine housing 2 by a bolt and nut assembly. The picked tender leaves can enter the leaf collecting box 4 through the leaf falling track 7.

[0018] See also Figures 1 to 8The contour picking device includes a contour picking mechanism 1, a left arc track 24, a track connecting plate 26, a right arc track 28, an angle controller 8, a base 5, an angle controller swing arm 31, etc. The angle controller 8 is fixedly mounted on the base 5 by a bolt and nut assembly. The angle controller swing arm 31 is fixedly connected to the contour picking mechanism 1 by a bolt and nut assembly. The left arc track 24 and the right arc track 28 are both fixedly connected to the base 5 by a bolt and nut assembly. Both are fixedly connected to the track connecting plate 26 by a bolt and nut assembly to form a variable pitch arc track 6. The variable pitch arc track is divided into three sections according to different widths, namely, a first arc track 23, a second arc track 25, and a third arc track 27. The widths of the first arc track and the third arc track are respectively greater than the width of the second arc track. Driven by the angle controller swing arm 31, the contour picking mechanism 1 can perform a 90° reciprocating rotation motion close to the variable pitch arc track.

[0019] See also Figure 5 to Figure 7 The contour picking mechanism 1 includes a blade 9, an infrared transmitter 10, a left rotating plate 11, a left adjusting convex plate 12, a left connecting shaft 13, a left torsion spring 14, a left fixed plate 15, a right fixed plate 16, a right torsion spring 17, a right connecting shaft 18, a right adjusting convex plate 19, a right rotating plate 20, an infrared receiver 21, and a knife groove 22. A square mounting hole for an angle controller swing arm 31 is formed between the left fixed plate 15 and the right fixed plate 16. The angle controller swing arm 31 is fixedly connected to the left fixed plate 15 and the right fixed plate 16 by a bolt and nut assembly. The left fixed plate 15 and the right fixed plate 16 are respectively connected to the left rotating plate 11 and the right rotating plate 20 through the left connecting shaft 13 and the right connecting shaft 18. The left torsion spring 14 and the right torsion spring 17 are respectively installed at the middle position of the left connecting shaft 13 and the right connecting shaft 18 to ensure that the left rotating plate 11 and the right rotating plate 20 are in a preset position without being subjected to external force. The blade 9 and the infrared transmitter 10 are fixedly mounted on the left rotating plate 11 by means of bolt and nut assemblies. The infrared receiver 21 and the knife groove 22 are fixedly mounted on the right rotating plate 20 by means of bolt and nut assemblies. The left adjustment convex plate 12 and the right adjustment convex plate 19 are respectively fixed on the left rotating plate 11 and the right rotating plate 20 by means of welding.

[0020] like Figure 1 — Figure 8 As shown, when in a non-operating state, the infrared transmitter 10 sends out an infrared signal and is received by the infrared receiver 21. At this time, the angle controller 8 is in a non-operating state, the contour picking mechanism is in the first arc track 23, and the blade 9 and the blade groove 22 are in a separated state.

[0021] During operation, the handheld young leaf picker is moved so that the young leaves are between the blade 9 and the knife groove 22. Due to the obstruction of the young leaves, the infrared signal emitted by the infrared transmitter 10 is not received by the infrared receiver 21. At this time, the angle controller 8 starts a cycle of work, and the angle controller swing arm 31 drives the contour picking mechanism 1 to rotate in the arc track.

[0022] When the contour picking mechanism transitions from the first arc track 23 to the second arc track 25, due to the narrowing of the arc track width, the left and right arc tracks 24 and 28 squeeze the left and right adjustment convex plates 12 and 19 respectively. Under this action, the left and right rotating plates 11 and 20 rotate around the left and right connecting shafts 13 and 18 respectively, and the blade 9 and the knife groove 22 move towards each other until the directional picking mechanism runs to the second arc track 25. At this time, the cutting edge of the blade 9 contacts the bottom of the knife groove 22. In this process, the young leaves are pulled and sheared away from the stems of the tea tree, and the young leaf picking machine completes the picking process of the young leaves.

[0023] Under the action of the angle controller 8, the contour picking mechanism 1 continues to move along the second arc track 25. When the contour picking mechanism transitions from the second arc track 25 to the third arc track 27, the track width widens. Under the action of the left and right torsion springs 14 and 17, the blade 9 and the knife groove 22 move backwards until they are completely separated. The picked young leaves fall onto the leaf falling track 7 and eventually fall into the leaf collecting box 4. When the contour picking mechanism rotates 90 degrees, the angle controller 8 controls the contour picking mechanism 1 to rotate in the opposite direction. When the contour picking mechanism 1 runs to the first arc track 23 again, the blade 9 and the knife groove 22 are in a separated state under the action of the torsion springs 14 and 17. When the angle controller 8 controls the contour picking mechanism 1 to complete a 90-degree downward rotation movement, a picking process of young leaves is completed.

[0024] The above embodiments are further explanations of the above contents of the present invention, but should not be understood as limiting the present invention. All technologies implemented based on the above contents belong to the scope of the present invention.

Claims

1. Tea garden tender leaf picking machine, characterized in that: The invention comprises a housing (2), a profile picking device mounted on the housing (2) via a bolt and nut assembly, an operating handle (3) mounted on the housing (2), a leaf collecting box (4), and a leaf falling track (7) whose outlet end is connected to the inlet of the leaf collecting box (4). The profile picking device comprises a profile picking mechanism (1), a left arc track (24), a track connecting plate (26), a right arc track (28), a base (5), and an angle controller (8) mounted on the base (5) via bolt and nut assemblies and fixedly connected to the profile picking mechanism via an angle controller swing arm (31). One end of the left arc track (24) and the right arc track (28) are respectively fixed to the base (5) via a bolt and nut assembly, and the other end are respectively connected to the corresponding end of the track connecting plate (26) via a bolt and nut assembly, thereby forming a variable pitch arc track having a first arc track (23), a second arc track (25), and a third arc track (27). The width of the first arc track (23) and the third arc track (27) are respectively fixed to the base (5) via a bolt and nut assembly. The width of the arc track (27) is respectively greater than the width of the second arc track (25). The contour picking mechanism comprises a left fixed plate (15) and a right fixed plate (16) which are fixedly connected by a bolt and nut assembly, a left rotating plate (11) which is connected to the left fixed plate (15) via a left connecting shaft (13) and is rotatable, a right rotating plate (20) which is connected to the right fixed plate (16) via a right connecting shaft (18) and is rotatable, a left torsion spring (14) which is installed in the middle of the left connecting shaft (13), and a mounting A right torsion spring (17) in the middle of the right connecting shaft (18), a blade (9) and a knife groove (22) respectively mounted on the left rotating plate (11) and the right rotating plate (20) at corresponding positions through bolt and nut assemblies, a left adjustment convex plate (12) and a right adjustment convex plate (19) respectively fixed on the left rotating plate (11) and the right rotating plate (20), and one end of the left torsion spring (14) and the right torsion spring (17) are respectively mounted on the left adjustment convex plate (12) and the right adjustment convex plate (19); The infrared transmitter (10) is fixedly mounted on the left rotating plate (11) by means of a bolt and nut assembly, and the infrared receiver (21) and the knife slot (22) are fixedly mounted on the right rotating plate (20) by means of a bolt and nut assembly; During operation, the handheld young leaf picker is moved so that the young leaves are located between the blade (9) and the blade groove (22), and the infrared signal emitted by the infrared transmitter (10) is not received by the infrared receiver (21). At this time, the angle controller (8) starts a cycle of operation, and the angle controller swing arm (31) drives the contour picking mechanism (1) to rotate in the arc track; When the contour picking mechanism transitions from the first arc track (23) to the second arc track (25), due to the narrowing of the arc track width, the left arc track (24) squeezes the left adjustment convex plate (12), and the right arc track (28) squeezes the right adjustment convex plate (19). Under this action, the left rotating plate (11) rotates around the left connecting shaft (13), the right rotating plate (20) rotates around the right connecting shaft (18), and the blade (9) and the knife groove (22) move towards each other until the directional picking mechanism moves to the second arc track (25). At this time, the cutting edge of the blade (9) contacts the bottom of the knife groove (22), and the young leaves are pulled and sheared away from the tea tree stems. The housing (2) has a hook-shaped card groove (29), and the leaf collecting box (4) has a card strip (30) that cooperates with the hook-shaped card groove (29).

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