CN101731065A - Novel knotting machine - Google Patents

Abstract

The invention belongs to the application field of agricultural machinery, and in particular relates to a knotter, a core working part of a small square bale baler, whose function is to tie the ends of a rope enveloping compressed materials into knots. It is mainly composed of a knotter frame, a small bevel gear, a knotting pliers shaft assembly, a support, a rope clamp, a rope cutting blade, and a planetary gear mechanism. The present invention is matched with a small square bale baler, and when the square bale reaches the preset bale length, the clutch of the baling mechanism is combined. The binding needle guides the rope to the knotter. Driven by the small bevel gear, the rope clamping disc and the jaws rotate in opposite directions to complete the rope clamping and winding; the jaws continue to rotate, and the upper jaw roller is on the cam track Roll to force the upper claw to open, and the two bundles of rope are introduced between the upper claw and the lower jaw of the jaw; as the jaws and the rope disc continue to rotate, the jaws tie the rope into a knot; the rope is cut The blade cuts the bundled rope, and the tied knot is released naturally, completing a knotting process.

Description

new knotter

1. Technical field

The invention belongs to the application field of agricultural machinery, and in particular relates to a knotter, a core working part of a small square bale baler, whose function is to tie the ends of a rope enveloping compressed materials into knots.

2. Background technology

Various pastures and crop residues are the main feed sources for livestock. At present, bundled harvesting techniques are commonly used at home and abroad to harvest forage grass and crop straw. The small square bale baler is a baling harvesting machine, which can automatically complete the picking, compressing and bundling of materials, and break loose materials into high-density, neat and regular square bales. The knotter is the core working part of the baler. Whether the performance of the knotter is reliable will directly affect the baler's bundling rate.

3. Contents of the invention

The purpose of the invention is to develop a novel knotter to reduce complicated field adjustment links and improve the bundling rate of the baler.

Technical scheme of the present invention:

The invention is mainly composed of a knotter frame body, a small bevel gear, a knotting pincer shaft assembly, a support, a rope gripper, a rope cutting blade, and a planetary gear mechanism. The knotting pincer shaft assembly is connected with the small bevel gear through an elastic pin, and the knotting pincer shaft assembly is coaxial with the rope gripper. The central gear and the intermediate wheel of the planetary gear mechanism are arranged inside the rope gripper, and the pinion bevel gear simultaneously drives the knotting pincer shaft assembly and the rope gripper disc of the rope gripper through the planetary gear mechanism. The support is under the rope gripper and fixed on Knotter frame.

The present invention is matched with a small square bale baler, and when the square bale reaches the preset bale length, the clutch of the baling mechanism is combined to start the baling mechanism to work. The tying needle guides the bale to the knotter. Driven by the small bevel gear, the rope clamping disc and the jaws rotate in opposite directions to complete the rope clamping and winding; the jaws continue to rotate, and the upper jaw roller rolls on the cam track of the support, forcing the upper jaws to open. The two strands of binding rope are introduced between the upper jaw and the lower jaw of the jaw; as the jaw and the rope disc continue to rotate, the roller of the upper jaw breaks away from the cam track of the support, and the compression spring and pin in the shaft hole of the jaw Under the action, the upper claw is forcibly closed, and the jaws tie the bundled rope enveloping the bale into a knot. The rope cutting blade cuts the bundled rope, and the tied knot is released naturally, completing a knotting process.

The main functions of each component are as follows:

Knotter frame: used to install the various parts of the knotter, so that the parts can be positioned accurately;

Small bevel gear: meshes with the large bevel gear on the main shaft of the bundling mechanism, and transmits the power to the knotting pincer shaft assembly and the rope gripper;

Knotting pincer shaft assembly: used to complete the rope knotting function;

Support: Cooperate with the upper jaw roller to control the opening of the jaws on the pliers mouth;

Rope clamp: complete the functions of clamping and loosening the rope;

Planetary gear mechanism: further transmit the power transmitted by the small bevel gear to the pliers mouth and the rope clamping disc;

Rope Cutting Blade: Used to finish cutting the secondary lashing above the knot.

4. Description of drawings

Figure 1: Front view structure diagram of the knotter

Figure 2: Top view structural diagram of the knotter

Figure 3: Structural diagram of knotting pliers shaft assembly

Figure 4: Planetary gear mechanism diagram

Figure 5: Structural diagram of the rope gripper

Figure 6: Schematic diagram of knotting working cycle (before knotting)

Figure 7: Schematic diagram of knotting working cycle (rope feeding)

Figure 8: Schematic diagram of knotting working cycle (winding rope, rope clamping)

Figure 9: Schematic diagram of knotting working cycle (upper jaws open)

Figure 10: Schematic diagram of knotting working cycle (upper claw closing and cutting rope)

Figure 11: Schematic diagram of knotting working cycle (return, tripping)

In the figure: 1. Knotter frame, 2. Small bevel gear, 3. Knotting pliers shaft assembly, 4. Support, 5. Rope gripper, 6. Rope cutting blade, 7. Planetary gear mechanism, 8. Elastic pin, 9, knotting pliers shaft, 10, clip spring, 11, pin, 12, roller, 13, claw on the pliers mouth, 14, central gear, 15, intermediate wheel, 16, internal tooth gear, 17, Rope clamp disc, 18, rope clearing piece, 19, rope clamping piece, 20, retaining sleeve, 21, spring pressure plate, 22, adjusting bolt, 23, tension spring, 24, primary binding rope, 25, rope limiting plate, 26 , positioning plate, 27, knotting pliers mouth, 28, binding needle, 29, secondary binding rope

5. Specific implementation

The present invention is described further according to accompanying drawing:

The present invention mainly consists of a knotter frame (1), a small bevel gear (2), a knotting pliers shaft assembly (3), a support (4), a rope clamp (5), a rope cutting blade (6), a planetary Gear mechanism (7) is formed. The knotting pincer shaft assembly (3) is connected with the small bevel gear (2) through the elastic pin (8); the knotting pincer shaft assembly (3) is coaxial with the rope clamp (5); the central gear of the planetary gear mechanism (7) and the intermediate wheel are arranged in the rope clamp (5); the small bevel gear (2) simultaneously drives the knotting pincer shaft assembly (3) and the rope clamping disc of the rope clamp (5) through the planetary gear mechanism (7); The seat (4) is fixed on the knotter frame (1) below the rope gripper (5).

The present invention is matched with a small square bale baler, and when the square bale reaches the preset bale length, the clutch of the baling mechanism is combined to start the baling mechanism to work. The binding needle (28) leads the binding rope to the knotter. Driven by the small bevel gear, the rope clamping disc (17) and the jaws (27) rotate in opposite directions to complete the rope clamping and winding; the jaws (28) continue to rotate, and the upper claw roller (12) is on the support Rolling on the cam track forces the upper claw (13) to open, and the two strands of tying rope are introduced between the upper claw (13) and the lower jaw of the pliers mouth; Continue to rotate, the upper claw roller (12) breaks away from the cam track of the support, and under the action of the pressure spring (10) and pin (11) in the pincer shaft hole, the upper claw (13) is forcibly closed, and the jaws will wrap The ropes of the bales are tied into knots. The rope cutting blade (6) cuts the bundled rope, and the tied knot is released naturally, completing a knotting process.

Figure 1 and Figure 2 describe the structural diagram of the knotter: the knotter frame (1), the small bevel gear (2), the knotting pincer shaft assembly (3), the support (4), and the rope gripper (5) , cutting rope blade (6), planetary gear mechanism (7) constitute.

Figure 3 describes the structural diagram of the knotting pliers shaft assembly: composed of elastic pins (8), knotting pliers shafts (9), compression springs (10), pins (11), rollers (12), jaws on the jaws (13 )composition.

Fig. 4 describes the planetary gear structure diagram: it is made up of central gear (14), intermediate wheel (15) and internal gear (16).

Fig. 5 describes the structural diagram of the rope gripper: by the rope gripping disc (17), the clearing rope piece (18), the rope gripping piece (19), the retaining sleeve (20), the spring pressing plate (21), the adjusting bolt (22), the Tight spring (23) forms.

Figure 6. Schematic diagram describing the working cycle of the knotter (before knotting): a knotting cycle is completed manually before the operation, and the binding needle (28) makes the primary binding rope (24) cross the positioning plate (26) during the rising process The hook rope groove at the front end is clamped in the gap between the ring groove of the rope clamping dish (17) and the rope clamping sheet (19) behind.

Figure 7. Schematic diagram describing the working cycle of the knotter (rope feeding): After the machine starts to work, when the compressed material in the baling chamber reaches the preset bale length, the clutch of the baling mechanism will be automatically combined to start the baling mechanism to work . First, the binding needle swings upwards from the starting position, leading the secondary binding rope (29) to the knotter. When the binding needle (28) rises above the knotter bottom plate, the secondary bundle will cross the hook-shaped rope groove at the front end of the positioning plate. As the tying needle continues to rise, the secondary tying rope is introduced into the rope clamping groove of the rope clamping disc (17) along the guide arc of the rope clamping sheet (19) front end.

Fig. 8 is a schematic diagram describing the working cycle of the knotter (rope winding, rope clamping): driven by the small bevel gear (2), the nipper mouth (27) rotates clockwise and knots around the rope. The jaws are in the process of knotting around the rope, and the two strands of bundled rope are transferred to the front end of the rope limiting plate (25) from the hook-shaped rope groove at the front end of the positioning plate (26). At the same time, the rope clamping disc rotates counterclockwise to clamp the secondary binding rope that has been introduced into the rope clamping groove.

Along with the continuation of tong mouth (27) and clamping rope dish (17), the primary binding rope head is no longer pressed by clamping rope piece, and primary binding rope is changed into one point clamping by two-point clamping. The rope gripper begins to release the rope, providing rope to the jaws that are tying the rope.

Figure 9. Schematic diagram describing the working cycle of the knotter (the upper jaws are opened): as the jaws continue to rotate, the upper jaw roller (12) will roll on the cam track at the bottom of the support (4), forcing the upper jaws Open up. At the same time, the two bundles of rope clamped by the rope gripper slide along the smooth curved surface of the skirt edge of the support, and are introduced between the upper jaw (13) and the lower jaw of the pliers mouth.

Figure 10. Schematic diagram describing the working cycle of the knotter (upper claw closing and rope cutting): when the jaws rotate to the upper jaw roller (12) rolls off the cam track on the bottom surface of the support (4), the upper The claws are quickly closed under the action of the spring (10) in the pincer shaft hole. Along with the continuation of pliers mouth (27) and clamping rope disc (17), secondary binding rope is cut off by cutting rope blade (6), and primary binding rope is extracted from rope clamp (5).

Figure 11. Schematic diagram describing the working cycle of the knotter (return, tripping): At this point, the knotter completes a complete knotting work cycle, and the moving parts of the knotter and the binding needle return to the initial position. As the bale moves backwards in the baling chamber, the knots wrapped around the jaws are released.

Claims (4)

1. a novel knotting machine is mainly by knotter support body (1), bevel pinion (2), ligaturing forceps shaft assembly (3), bearing (4), rope brake (5), twine knife sheet (6), planetary gears (7) constitutes, ligaturing forceps shaft assembly (3) connects with bevel pinion (2) by resilient key (8), ligaturing forceps shaft assembly (3) is coaxial with rope brake (5), the central gear of planetary gears (7) and idle wheel are configured within the rope brake (5), bevel pinion (2) drives the folder cheese of ligaturing forceps shaft assembly (3) and rope brake (5) simultaneously by planetary gears (7), bearing (4) is fixed on the knotter support body (1) in rope brake (5) below.

2. according to claims 1 described novel knotting machine, it is characterized in that ligaturing forceps shaft assembly (3) is by resilient key (8), ligaturing forceps axle (9), stage clip (10), pin (11), roller (12), jaw upper clipping claw compositions such as (13), be provided with stage clip (10) in the ligaturing forceps axle (9), the closure of jaw upper clipping claw (13) is to realize by the stage clip (10) and the pin (11) that are provided with in ligaturing forceps axle (9), the pressure that jaw upper clipping claw (13) is closed depends on the rigidity of spring and the length of pin, on the bearing (4) below the folder cheese, one section cam rail is arranged, when the roller (12) of jaw upper clipping claw (13) one ends rolls on cam rail, jaw upper clipping claw (13) will be opened by force, and jaw upper clipping claw (13) will be closed under the effect of stage clip (10) and pin (11) when roller breaks away from cam rail.

3. according to claims 1 described novel knotting machine, it is characterized in that planetary gears (7) is made up of central gear (14), idle wheel (15) and internal gear (16), on ligaturing forceps axle (9), be provided with central gear (14), central authorities' gears (14) and empty 3 idle wheels (15) engagement that is enclosed within on the bearing pin, bearing pin is fixed on the bearing (4), idle wheel (15) drives jaw (27) and folder cheese (17) with the internal tooth engagement of pressing from both sides on the cheese (17), bevel pinion (2) simultaneously by the internal tooth on central gear (14), idle wheel (15) and the folder cheese (17).

4. according to claims 1 described novel knotting machine, it is characterized in that rope brake (5) is by folder cheese (17), clear rope sheet (18), folder rope sheet (19), interstage sleeve (20), spring bearer plate (21), adjusting bolt (22) tensioning spring (23) forms, folder rope sheet (19) and folder cheese (17) interlaced arrangement, the bundle rope is clamped between folder rope sheet (19) and the folder cheese (17), folder rope sheet tensioning spring (23) is exerted pressure to folder rope sheet (19) by spring bearer plate (21), the chucking power of bundle rope can be adjusted by adjusting bolt (22), clear rope sheet (18) and folder cheese (17) interlaced arrangement, its major function is that the fag end after cutting off is removed away from folder cheese (17) lining, prevent that fag end from stopping up folder cheese groove, 4 folder groovings on the folder cheese distribute along folder cheese excircle direction diagonal, the bundle rope is clamped in two folder groovings of the circumferentially approximate 180 ° of distributions in folder cheese upper edge, in the knotter course of work, jaw and the reverse rotation of folder cheese, jaw is by clockwise rotating 360 °, and the folder cheese is by rotating counterclockwise 180 °.

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