CN110972733B

CN110972733B - Knotter is detained to straw bundling machine's aluminium

Info

Publication number: CN110972733B
Application number: CN201911352252.XA
Authority: CN
Inventors: 吴永青; 吴永红; 吴可
Original assignee: Wuwei County Wanci Agricultural Machinery Professional Cooperative
Current assignee: Wuwei County Wanci Agricultural Machinery Professional Cooperative
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2021-11-30
Anticipated expiration: 2039-12-25
Also published as: CN110972733A

Abstract

The invention discloses an aluminum buckle knotter of a straw bundling machine, which comprises a rope belt clamping mechanism and a knotting mechanism, wherein the rope belt clamping mechanism comprises a rope taking clamp, a telescopic plate, a housing, a trigger structure and a knotting mechanism, the telescopic plate slides in a telescopic manner from the side surface to a rope belt knotting position, the housing covers the rope belt clamping mechanism and the knotting mechanism and is provided with an opening for the telescopic plate to extend out, the rope taking clamp is arranged at the extending end of the telescopic plate and is connected with a clamping plate component of the trigger mechanism through a sliding connecting rod, the clamping plate component is also connected with a punch component of the knotting mechanism through an energy storage connecting rod, the knotting mechanism is arranged above the knotting position after the rope taking clamp retracts, and a pressing end extends between the knotting mechanism and the rope taking clamp. The invention has the advantages of good cooperativity, high knotting efficiency and reduction of feeding faults of the aluminum buttons.

Description

Knotter is detained to straw bundling machine's aluminium

Technical Field

The invention relates to an aluminum buckle knotter of a straw bundling machine.

Background

In the prior art, the straw bundling machine can cut up the collected straws and compact the straws after use, and then bundle and discharge the straws. The straw bundle is around its trilateral when compressing the passageway discharge ejecting elementary fag end, rotates through the bundling needle and winds secondary fag end around straw bundle top, and it is fixed to carry out automatic take-up knot through the knotter with the coincidence portion between the fag end, and is efficient, has practiced thrift a large amount of manpowers. In order to improve the strength of the rope belts, some bundling machines adopt wider belt-shaped rope belts for bundling, and have the advantages that the strength is improved, the contact surface of the bundling machine with the straws is increased, and the straws can be prevented from leaking. However, the rope belt is difficult to knot through a conventional D-shaped knotter, some knotters adopt an aluminum buckle to compress and buckle a secondary rope belt and a primary rope belt to be knotted and connected, and the aluminum buckle punctures the two layers of rope belts and then deforms to realize the connection of the rope belt. However, in order to facilitate striking and knotting of the aluminum buckles in the prior art, the buckling end of the buckle storage box needs to be exposed at a position where the buckling end is easy to contact with the straw bundles, as shown in the attached drawings and written descriptions disclosed in patent No. 201510244609.8, so that the broken pieces of the straws easily enter the buckling end to cause blockage, the feeding of the aluminum buckles is difficult, the aluminum buckles are prone to malfunction, and the use reliability of the knotter is greatly influenced.

Disclosure of Invention

The invention aims to provide an aluminum buckle knotter of a straw baler, and aims to solve the problem that in the prior art, the knotter is difficult to feed aluminum buckles and influences the use of the knotter because the pressing buckle ends of the aluminum buckles are exposed outside and are easily blocked by straw scraps.

The aluminum buckle knotter of the straw bundling machine comprises a buckle storage box, a bundling needle and a rope clamping device, wherein the buckle storage box is provided with a protruding buckle pressing end, the aluminum buckle storage box further comprises a rope belt clamping mechanism and a knotting mechanism, the rope belt clamping mechanism comprises a rope taking clamp, an expansion plate, a cover shell, a trigger structure and a knotting mechanism, the expansion plate slides in a telescopic mode from the side surface to the rope belt knotting position, the cover shell covers the rope belt clamping mechanism and the knotting mechanism and is provided with an opening for the expansion plate to extend out, the rope taking clamp is arranged at the extending end of the expansion plate and is connected with a clamping plate component of the trigger structure through a sliding connecting rod, the clamping plate component is further connected with a punch component of the knotting mechanism through an energy storage connecting rod, the knotting mechanism is arranged above the knotting position where the rope taking clamp retracts, and the buckle pressing end extends into a space between the knotting mechanism and the rope taking clamp; when the telescopic plate extends out, the sliding connecting rod drives the trigger structure to move to a clamping state, the rope taking clamp clamps the knotted part of the rope belt, and the punch head assembly is jacked up by the energy storage connecting rod for energy storage; when the expansion plate retracts, the sliding connecting rod slides backwards to jack up the unlocking assembly of the trigger structure to realize unlocking, and after the trigger structure is unlocked, the punch assembly falls to push the aluminum buckle at the buckle pressing end into the buckle buckling rope belt of the flat aluminum buckle in the rope taking clamp.

Preferably, get the rope clamp bottom with the expansion plate is even as an organic whole, it still includes clip hinge and punch holder to get the rope clamp, the punch holder articulates through the clip hinge stretch out of expansion plate and hold the higher authority, the punch holder is through the cover the epaxial torsional spring of clip hinge with the expansion plate is connected, the rear end both sides of punch holder have the swing portion that stretches out backward, the swing portion with the slip connecting rod front end is articulated.

Preferably, the cardboard subassembly symmetry is located expansion plate left and right sides, the cardboard subassembly includes the stock and is fixed in the cardboard of stock upper end, the stock rotates to be connected the housing inboard, the stock lower extreme is equipped with the round pin, the slip connecting rod rear portion is equipped with the spout of syntropy extension, round pin sliding connection has in the spout, connect through the horizontal pole that transversely sets up between the lower extreme of two stocks, energy storage connecting rod one end rotates to be connected to the horizontal pole and the other end articulates to the drift subassembly.

Preferably, the unblock subassembly is including rotating the connection and being in the inboard block board and unblock pole of housing, the pivot of block board is located the cardboard top, the block board front end is equipped with the pothook, the cardboard top be equipped with pothook matched with bayonet socket, the block board rear end is fixed with the driving lever that stretches out downwards, the driving lever lower extreme is fixed with the round pin post, the upper end of unblock pole is equipped with the cover and is in the post groove hook on the round pin post, the lower extreme of two unblock poles is connected through the baffle of horizontal setting, push open when sliding connecting rod rear end backward sliding the baffle passes through the unblock pole drive the block board rotates the unblock trigger structure.

Preferably, the clamping plate extends towards the rear side of the long rod, a chamfer is arranged at the extending end of the clamping plate, an inclined stop block fixed on the inner side of the housing is arranged in the extending direction of the extending end of the clamping plate, the inclined stop block stops the clamping plate at the position clamped with the clamping hook, and a limiting block fixed on the inner side of the housing is arranged behind the shifting lever.

Preferably, the knotting mechanism further comprises an upper bracket, a guide pillar and a tension spring, the upper bracket is fixed to the bottom of the top plate of the housing, the guide pillar is vertically arranged and connected with the upper bracket and the buckling end, the punch assembly is slidably connected to the guide pillar and connected with the upper bracket through the tension spring, and the punch assembly is opposite to a top window of the buckling end.

Preferably, the punch assembly comprises a punch mounting plate and a punch, the punch mounting plate is horizontally provided with a guide pillar hole in sliding fit with the guide pillar, the punch is mounted at the bottom of the punch mounting plate, a vertical plate is vertically mounted on the punch mounting plate, and the rear side of the vertical plate is hinged to the end of the energy storage connecting rod through a hinge shaft.

Preferably, the housing rear side rotates and installs the semi-gear, semi-gear fixed connection gear shaft, gear shaft one end is connected with the power device transmission, the expansion plate rear portion is followed the opening of housing rear side stretches out, the expansion plate rear side is fixed with the J type rack structure of half encirclement, J type rack structure includes rack, last rack and perpendicular to down the connecting portion of expansion plate, connecting portion connect go up the rack with between the lower rack rear end, the rack is located down on the expansion plate and with it is relative to go up the rack, the diameter of the face circle of the no tooth semicircle of semi-gear is less than its diameter of the circle that has the tooth semicircle, semi-gear rotary energy successively with lower rack with go up the gear wheel and flow meshing.

The invention has the following advantages: the invention realizes the periodic extension of the expansion plate through the half gear and the J-shaped rack structure, and ensures that the invention can automatically clamp the knotted part of the rope belt and enter the housing when in use through the linkage of the trigger structure, the knotting mechanism and the rope taking clamp at the end part of the expansion plate, lift the punch to store energy until the rope belt moves to the lower part, and unlock the trigger structure to release the punch to enable the knotting mechanism to finish a series of actions of flattening and buckling the rope belt by the aluminum button. The end of will pressing to detain prevents in locating the housing that the straw piece from causing the jam to it promptly, can guarantee the collaborative work of knotting mechanism and expansion plate, getting the rope clamp again, and needn't pass through inductor control, avoids under the complex environment inductor malfunctioning or the mistake to touch. Therefore, the invention has the effects of good cooperativity, high knotting efficiency and reduction of aluminum button feeding faults.

Drawings

Fig. 1 and 2 are schematic structural diagrams of the present invention without a housing part structure.

Fig. 3 is a sectional view of the present invention in an initial state.

Fig. 4 is a cross-sectional view of the present invention in a locked condition of the trigger structure.

Fig. 5 is an enlarged view of a circled portion of the structure shown in fig. 4.

Fig. 6 is a schematic structural view of the straw bale when knotted using the present invention.

The labels in the figures are: 1. the device comprises a housing, 2, a deflector rod, 3, a clamping plate, 4, a clamping plate, 5, a long rod, 6, an unlocking rod, 7, a column groove hook, 8, a pin column, 9, a baffle plate, 10, a cross rod, 11, a round pin, 12, a sliding connecting rod, 13, a sliding groove, 14, a swinging part, 15, an upper clamping plate, 16, a clamp hinge shaft, 17, a telescopic plate, 18, an energy storage connecting rod, 19, a punch, 20, a punch mounting plate, 21, a vertical plate, 22, a guide column, 23, a tension spring, 24, an upper support, 25, a limiting block, 26, an inclined blocking block, 27, a storage and buckling box, 28, a pressing and buckling end, 29, a torsion spring, 30, a connecting part, 31, an upper rack, 32, a lower rack, 33, a half gear, 34, a clamping hook, 35, a bayonet, 36, a chamfer, 37, an aluminum buckle, 38, a primary rope belt, 39, a secondary rope belt, 40, a straw bundle, 41, a bundling needle, 42 and a rope clamp.

Detailed Description

The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.

As shown in FIGS. 1-6, the invention provides an aluminum buckle knotter of a straw baler, which comprises a buckle storage box 27, a binding needle 41 and a rope clamp 42, wherein the buckle storage box 27 is provided with a protruding buckle pressing end 28; the rope belt clamping mechanism comprises a rope taking clamp, an expansion plate 17, a cover 1, a trigger structure and a knotting mechanism, wherein the expansion plate 17 slides in a telescopic manner from the side surface to a rope belt knotting position, the cover 1 covers the rope belt clamping mechanism and the knotting mechanism and is provided with an opening for the expansion plate 17 to extend out, the rope taking clamp is arranged at the extending end of the expansion plate 17 and is connected with a clamping plate 4 assembly of the trigger structure through a sliding connecting rod 12, the clamping plate 4 assembly is also connected with a punch assembly of the knotting mechanism through an energy storage connecting rod 18, the knotting mechanism is arranged above the knotting position after the rope taking clamp retracts, and a pressing end 28 extends between the knotting mechanism and the rope taking clamp; when the expansion plate 17 extends out, the sliding connecting rod 12 drives the trigger structure to move to a clamping state, the rope taking clamp clamps the knotted part of the rope belt, and the punch head assembly is jacked up by the energy storage connecting rod 18 for energy storage; when the retractable plate 17 retracts, the sliding connecting rod 12 slides backwards to jack the unlocking component of the trigger structure to unlock, and after the trigger structure is unlocked, the punch component falls down to punch the aluminum button 37 at the button pressing end 28 into the rope taking clamp to flatten the aluminum button 37 to buckle the rope belt.

Get the rope clamp bottom with the expansion plate 17 is even as an organic whole, it still includes clip hinge 16 and punch holder 15 to get the rope clamp, punch holder 15 articulates through clip hinge 16 the expansion plate 17 stretch out to hold the higher authority, punch holder 15 is through the cover torsional spring 29 on the clip hinge 16 with the expansion plate 17 is connected, the rear end both sides of punch holder 15 have the swing portion 14 that stretches out backward, swing portion 14 with sliding connection 12 front end is articulated.

The cardboard 4 subassembly symmetry is located the expansion plate 17 left and right sides, cardboard 4 subassembly includes stock 5 and is fixed in cardboard 4 of stock 5 upper end, stock 5 rotates to be connected 1 inboard in the housing, 5 lower extremes of stock are equipped with round pin 11, sliding connecting rod 12 rear portion is equipped with the spout 13 of syntropy extension, round pin 11 sliding connection has in the spout 13, connect through the horizontal pole 10 of horizontal setting between the lower extreme of two

stock

5, 18 one end of energy storage connecting rod rotates and is connected to horizontal pole 10 and the other end articulates to the drift subassembly. When the trigger structure is locked in a clamping way, the round pin 11 is positioned at the same height with the pin shaft of the clamp, so that when the rope taking clamp retracts, the sliding connecting rod 12 can only extend backwards in a sliding way.

The unblock subassembly is including rotating the connection 1 inboard block plate 3 and unblock pole 6 of housing, the pivot of block plate 3 is located 4 tops of cardboard, 3 front ends of block plate are equipped with

pothook

34, 4 tops of cardboard be equipped with pothook 34 matched with

bayonet

35, 3 rear ends of block plate are fixed with the driving lever 2 of stretching out downwards, 2 lower extremes of driving lever are fixed with round pin post 8, the upper end of unblock pole 6 is equipped with the cover and is in the post groove hook 7 on the round pin post 8, the lower extreme of two unblock poles 6 is connected through the baffle 9 of horizontal setting, back-pushing open when sliding connecting rod 12 rear end slides backward baffle 9 passes through unblock pole 6 drives block plate 3 rotates the unblock trigger structure.

The side edge of the hook 34 facing the clamping plate 4 is an arc-shaped edge with the rotating shaft of the clamping plate 3 as the center of circle, and the other side edge of the hook 34 is a bevel edge extending backwards. When the hook 34 rotates upward, the bayonet 35 will not obstruct the rotation of the arc-shaped edge, and when the card board 4 rotates forward, the hook 34 will be hooked and unable to rotate. The inside of the groove hook 7 has a space for the pin 8 to move in the longitudinal direction of the lock release lever 6.

The clamping plate 4 extends towards the rear side of the long rod 5, a chamfer 36 is arranged at the extending end of the clamping plate 4, an inclined stop block 26 fixed on the inner side of the housing 1 is arranged in the extending direction of the extending end of the clamping plate 4, the inclined stop block 26 stops the clamping plate 4 at the position clamped with the clamping hook 34, and a limit block 25 fixed on the inner side of the housing 1 is arranged behind the shifting lever 2.

The knotting mechanism further comprises an upper bracket 24, a guide post 22 and a tension spring 23, wherein the upper bracket 24 is fixed to the bottom of a top plate of the housing 1, the guide post 22 is vertically arranged and connected with the upper bracket 24 and the buckling end 28, the punch assembly is slidably connected to the guide post 22 and connected with the upper bracket 24 through the tension spring 23, and the punch assembly is opposite to a top window of the buckling end 28.

The punch assembly comprises a punch mounting plate 20 and a punch 19, the punch mounting plate 20 is horizontally provided with a guide post hole in sliding fit with the guide post 22, the punch 19 is mounted at the bottom of the punch mounting plate 20, a vertical plate 21 is vertically mounted on the punch mounting plate 20, and the rear side of the vertical plate 21 is hinged to the end of the energy storage connecting rod 18 through a hinge shaft.

Half gear 33 is installed in the rotation of 1 rear side of housing, half gear 33 fixed connection gear shaft, gear shaft one end is connected with the power device transmission, expansion plate 17 rear portion is followed the opening of 1 rear side of housing stretches out, expansion plate 17 rear side is fixed with the J type rack structure of half encirclement, J type rack structure includes rack 32 down, goes up rack 31 and perpendicular to expansion plate 17's connecting portion 30, connecting portion 30 connect go up rack 31 with between the lower rack 32 rear end, rack 32 locates down on the expansion plate 17 and with it is relative to go up rack 31, the toothless disc diameter of half gear 33 is less than its tooth root circle diameter that has the tooth semicircle, half gear 33 can rotate successively with lower rack 32 with go up rack 31 and mesh in turn. A certain distance is reserved between the front end of the upper rack 31 and the housing 1, and the distance is larger than the telescopic distance of the telescopic plate 17.

When the straw bale tying device is used, when the tying needle 41 rotates to wind the secondary rope belt 39 above the primary rope belt 38 jacked up by the straw bale 40, the rope clamping device 42 clamps the end part of the primary rope belt 38 below the arc-shaped secondary rope belt 39, and the overlapping area between the primary rope belt 38 and the secondary rope belt 39 is the rope belt knotting position. The half gear 33 rotates under the drive of the power device to drive the lower rack 32 to move forward, namely the telescopic plate 17 extends forward. The lower end of the long rod 5 moves along with the end part of the sliding connecting rod 12 to drive the long rod 5 to rotate, when the clamping plate 4 rotates to the position of the inclined stop block 26, the clamping hook 34 is firstly jacked up through the chamfer 36, and then the clamping hook 34 is clamped into the bayonet 35 to cause the clamping between the clamping plate 3 and the clamping plate 4. At the same time, the energy storage connecting rod 18 pushes the punch component upwards under the pushing of the cross rod 10, the punch component rises along the guide pillar 22 until the clamping plate 4 component is locked, at the moment, the cross rod 10 and the round pin 11 are located at the low point on the telescopic plate 17 and are not moved, and the punch component is kept at the high position. Then, as the expansion plate 17 continues to extend forwards, the sliding link 12 pulls the upper clamp plate 15 to rotate, when the rope taking clamp extends forwards to the rope knot, the upper clamp plate 15 is closed to take up the rope knot, and at the moment, the half gear 33 also moves to a position which is separated from the lower rack 32 and starts to be meshed with the upper rack 31.

After that, the toothed semicircle of the half gear 33 is meshed with the upper rack 31, so as to drive the upper rack 31 to move backwards, the expansion plate 17 retracts backwards, the round pin 11 is not moved, the sliding connecting rod 12 slides backwards through the position of the round pin 11, the rear end of the sliding connecting rod 12 is propped against the baffle 9, and the sliding connecting rod 12 props up the baffle 9 to drive the unlocking rod 6 to rotate when the rope taking clamp reaches the lower part of the buckling end 28. When the unlocking rod 6 rotates, the pin 8 is shifted through the slot hook 7, so that the shifting rod 2 and the clamping plate 3 rotate, the clamping plate 3 rotates to enable the clamping hook 34 to be separated from the bayonet 35, and the trigger structure is unlocked. Because the punch assembly is located at a high position, after the punch assembly is unlocked, the punch assembly drops to punch the aluminum buckle 37 at the buckle pressing end 28 into the rope taking clamp, the bottom of the aluminum buckle 37 pierces through the rope belt and is flattened from the bottom under the impact of the punch 19, and the effect that the aluminum buckle 37 buckles the rope belt is achieved. Meanwhile, the punch assembly falls down and enables the long rod 5 and the round pin 11 to reset through the energy storage connecting rod 18, the rope taking clamp is opened under the action of the torsion spring 29, the knotted part of the rope belt after the knotting connection is released, the punch 19 rises under the action of the tension spring 23 to reset after impacting the aluminum buckle 37, and at the moment, the semicircular gear rotates to be separated from the upper rack 31 to start to be meshed with the lower rack 32. At this point, the drive relationship between the power unit and the gear shaft is released until the next straw bale 40 is ready for the next knot tying.

The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution of the invention, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The utility model provides a straw bundling machine's aluminium is detained knotter, detains case (27), bundling needle (41) and rope gripper (42) including depositing, deposits and detains case (27) and have the pressure of stretching out and detain end (28), its characterized in that: the rope belt clamping mechanism comprises a rope taking clamp, a telescopic plate (17), a cover shell (1), a trigger structure and a knotting mechanism, the telescopic plate (17) slides in a telescopic mode from the side face to a rope belt knotting position, the cover shell (1) covers the rope belt clamping mechanism and the knotting mechanism and is provided with an opening for the telescopic plate (17) to extend out, the rope taking clamp is arranged at the extending end of the telescopic plate (17) and is connected with a clamping plate (4) assembly of the trigger structure through a sliding connecting rod (12), the clamping plate (4) assembly is further connected with a punch assembly of the knotting mechanism through an energy storage connecting rod (18), the knotting mechanism is arranged above the knotting position where the rope taking clamp retracts, and a pressing end (28) extends between the knotting mechanism and the rope taking clamp; when the telescopic plate (17) extends out, the sliding connecting rod (12) drives the trigger structure to move to a clamping state, the rope taking clamp clamps a rope belt knotting position, and the punch head component is jacked up by the energy storage connecting rod (18) for energy storage; when the telescopic plate (17) retracts, the sliding connecting rod (12) slides backwards to jack the unlocking assembly of the trigger structure to unlock, and after the trigger structure is unlocked, the punch assembly falls down to flush the aluminum button (37) of the button pressing end (28) into the rope taking clamp to flatten the aluminum button (37) to buckle the rope belt.

2. The aluminum buckle knotter of the straw baler of claim 1, wherein: get the rope clamp bottom with expansion plate (17) are even as an organic whole, it still includes clip hinge (16) and punch holder (15) to get the rope clamp, punch holder (15) articulate through clip hinge (16) stretch out of expansion plate (17) and serve the face above, punch holder (15) are through the cover torsional spring (29) on clip hinge (16) with expansion plate (17) are connected, the rear end both sides of punch holder (15) have swing portion (14) that stretch out backward, swing portion (14) with sliding connection rod (12) front end is articulated.

3. The aluminum buckle knotter of the straw baler according to claim 1 or 2, characterized in that: cardboard (4) subassembly symmetry is located expansion plate (17) left and right sides, cardboard (4) subassembly includes stock (5) and is fixed in cardboard (4) of stock (5) upper end, stock (5) rotate to be connected in housing (1) inboard, stock (5) lower extreme is equipped with round pin (11), slip connecting rod (12) rear portion is equipped with spout (13) of syntropy extension, round pin (11) sliding connection has in spout (13), connects through horizontal pole (10) of horizontal setting between the lower extreme of two stock (5), energy storage connecting rod (18) one end is rotated and is connected to horizontal pole (10) and the other end articulates to the drift subassembly.

4. The aluminum buckle knotter of the straw baler of claim 3, wherein: the unlocking component comprises a clamping plate (3) rotatably connected to the inner side of the housing (1) and an unlocking rod (6), the rotating shaft of the clamping plate (3) is arranged above the clamping plate (4), the front end of the clamping plate (3) is provided with a clamping hook (34), the top of the clamping plate (4) is provided with a bayonet (35) matched with the clamping hook (34), a deflector rod (2) extending downwards is fixed at the rear end of the clamping plate (3), a pin column (8) is fixed at the lower end of the deflector rod (2), the upper end of the unlocking rod (6) is provided with a column groove hook (7) sleeved on the pin column (8), the lower ends of the two unlocking rods (6) are connected through a baffle plate (9) which is transversely arranged, when the rear end of the sliding connecting rod (12) slides backwards, the baffle (9) is pushed open, the unlocking rod (6) drives the clamping plate (3) to rotate and unlock the trigger structure.

5. The aluminum buckle knotter of the straw baler of claim 4, wherein: the clamping plate (4) extends towards the rear side of the long rod (5), a chamfer (36) is arranged at the extending end of the clamping plate (4), an inclined stop block (26) fixed on the inner side of the housing (1) is arranged in the extending direction of the extending end of the clamping plate (4), the inclined stop block (26) stops the clamping plate (4) at the position clamped with the clamping hook (34), and a limiting block (25) fixed on the inner side of the housing (1) is arranged behind the shifting lever (2).

6. The aluminum buckle knotter of the straw baler of claim 1, wherein: the knotting mechanism further comprises an upper support (24), a guide post (22) and a tension spring (23), the upper support (24) is fixed to the bottom of a top plate of the housing (1), the guide post (22) is vertically arranged and connected with the upper support (24) and the buckling end (28), the punch assembly is connected to the guide post (22) in a sliding mode and connected with the upper support (24) through the tension spring (23), and the punch assembly is opposite to a top window of the buckling end (28).

7. The aluminum buckle knotter of the straw baler of claim 6, wherein: the punch assembly comprises a punch mounting plate (20) and a punch (19), a guide pillar hole in sliding fit with the guide pillar (22) is horizontally formed in the punch mounting plate (20), the punch (19) is mounted at the bottom of the punch mounting plate (20), a vertical plate (21) is vertically mounted on the punch mounting plate (20), and the rear side of the vertical plate (21) is hinged to the end of the energy storage connecting rod (18) through a hinge shaft.

8. The aluminum buckle knotter of the straw baler of claim 1, wherein: a half gear (33) is rotatably arranged at the rear side of the housing (1), the half gear (33) is fixedly connected with a gear shaft, one end of the gear shaft is in transmission connection with a power device, the rear part of the expansion plate (17) extends out of an opening at the rear side of the housing (1), a semi-enclosed J-shaped rack structure is fixed on the rear side of the expansion plate (17), the J-shaped rack structure comprises a lower rack (32), an upper rack (31) and a connecting part (30) vertical to the expansion plate (17), the connecting part (30) is connected between the rear ends of the upper rack (31) and the lower rack (32), the lower rack (32) is arranged on the expansion plate (17) and is opposite to the upper rack (31), the diameter of the circular surface of the toothless semicircle of the half gear (33) is smaller than the diameter of the tooth root circle of the toothed semicircle, the half gear (33) can be sequentially meshed with the lower rack (32) and the upper rack (31) in turn by rotating.