A device for binding and wrapping agricultural tobacco before curing

Abstract

This invention discloses a device for binding and wrapping tobacco leaves before curing, belonging to the field of agricultural machinery technology. It includes a wrapping mechanism, a pressing mechanism, and a power mechanism. The pressing mechanism has a top plate, a support column fixedly installed below the top plate, and a base plate fixedly installed below the support column. A wrapping assembly is mounted on the upper side of the base plate, which wraps the tobacco leaves with thread. Two movable blocks are mounted on the upper side of the top plate, which clamp the tobacco leaves. A pressing and pushing assembly is mounted on the top plate, which squeezes the tobacco leaves and collects the broken fragments generated by the squeezing.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a device for binding and wrapping tobacco before curing. Background Technology

[0002] Tobacco is a plant belonging to the genus Nicotiana in the family Solanaceae, native to South America. Flue-cured tobacco, sun-cured red tobacco, sun-cured yellow tobacco, cigar tobacco, and Burley tobacco belong to different tobacco types, each with different applications and processing methods. Flue-cured tobacco is the most widely cultivated and used tobacco type in the world, extensively cultivated in all provinces of China, and is the main raw material for the cigarette industry. After harvesting, flue-cured tobacco leaves need to be packed and taken back for multiple processes such as curing, grading, and re-curing before being added to cigarette products. Fresh tobacco leaves need to be bundled after harvesting. The traditional bundling method involves manually stacking multiple tobacco leaves together, holding the stacked tobacco in one hand, and using the other hand to wrap and tie the leaves with rope. Finally, the bundled tobacco leaves are neatly arranged in bags or cloth bundles, taken back to a cool, shaded place, and placed in tobacco clips for curing.

[0003] Chinese invention patent CN112220092B discloses a device for bundling and wrapping agricultural tobacco before drying. The technical solution of this invention includes a box body, with an mounting plate fixedly installed on one side of the box body. A vertical plate is fixedly installed on the top of the mounting plate, and a fixing plate is fixedly installed on the top of the vertical plate. A common screw is rotatably installed on the side of the mounting plate and the vertical plate that are close to each other. A slider is provided on the screw, and the screw passes through the slider and is threadedly connected to it. Two fixing plates are fixedly installed on one side of the slider, and two guide wheels are provided between the two fixing plates. The top and bottom ends of the two guide wheels are rotatably connected to the corresponding fixing plates. A locking mechanism is provided inside the box body. However, this invention requires the tobacco to be placed vertically and squeezed when bundling it, and there is a gap between the power part of the squeezing mechanism and the tobacco. Furthermore, the tobacco may produce broken leaves during the squeezing process, and these broken tobacco fragments may enter the power mechanism, potentially causing jamming. Therefore, to address these shortcomings, a device for bundling and wrapping agricultural tobacco before drying has been invented. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention adopts the following technical solution: a binding and winding device for agricultural tobacco before curing, comprising a winding mechanism, a pressing mechanism, and a power mechanism. The winding mechanism is provided with a base plate, a fixing ring, and a winding assembly. The pressing mechanism is provided with a top plate. The base plate is fixedly installed below the top plate. The fixing ring and the winding assembly are installed on the upper side of the base plate and arranged in an alternating pattern. The fixing ring is located below the winding assembly.

[0005] An I-shaped through hole is provided on the upper side of the top plate. A support block is fixedly installed above the I-shaped through hole. A blade-shaped notch is provided on the upper side of the support block. The size of the blade-shaped notch is smaller than the size of the I-shaped through hole. A track assembly is installed below the I-shaped through hole. The material drop chute is slidably installed in the track assembly. A blade-shaped groove is provided on the material drop chute. The shape of the blade-shaped groove of the material drop chute is consistent with the shape of the blade-shaped notch of the support block.

[0006] The power mechanism is equipped with a square column, which is fixedly installed on the upper side of the top plate. A drive rod is slidably installed on the outer surface of the square column. A pressure plate is installed above the blade-shaped notch of the support block. A connecting rod is hinged to the upper side of the pressure plate and is fixedly connected to the drive rod. A lower slide groove is fixedly installed on the lower side of the top plate. A sliding rod is slidably installed on the side of the lower slide groove. A junction box is fixedly installed on the side of the sliding rod. The upper surface of the junction box is parallel to the upper surface of the top plate. The drive rod and the sliding rod are connected by a pressing and pushing assembly, which makes the movement directions of the drive rod and the sliding rod perpendicular to each other.

[0007] Furthermore, the winding assembly is provided with a motor bracket, a motor is fixedly installed on the upper side of the motor bracket, a turntable is fixedly installed at the output end of the motor, a pin is fixedly installed on the side of the turntable near the top plate, the pin is eccentric to the turntable, a circular through hole is provided on the outer surface of the pin, and the fixing ring is located on the lower right side of the turntable.

[0008] Furthermore, the I-shaped through hole is formed by two horizontal rectangular through holes and one vertical rectangular through hole connected to each other. The two horizontal rectangular through holes are identical in shape and size. The length of the horizontal rectangular through hole is greater than the length of the vertical rectangular through hole, and the width of the horizontal rectangular through hole is less than the width of the vertical rectangular through hole. The two width directions of the two horizontal rectangular through holes coincide, and the length direction of one end face of each horizontal rectangular through hole coincides with the length direction end face of the vertical rectangular through hole.

[0009] Furthermore, two cylindrical protrusions are respectively provided on the two sides of the material discharge trough in the width direction, and the four cylindrical protrusions are slidably installed in a horizontal rectangular through hole in pairs.

[0010] Furthermore, the track assembly is equipped with vertical tracks and curved tracks, with two of each. A curved track is fixedly installed on the lower side of each end face of the top plate near the horizontal rectangular through hole of the motor, and a vertical track is fixedly installed on the lower side of each end face of the top plate away from the horizontal rectangular through hole of the motor. Both the vertical and curved tracks have grooves on their sides, and the grooves of the vertical and curved tracks are smoothly connected to the end face of the horizontal rectangular through hole of the top plate.

[0011] Furthermore, the centerline of the vertical track chute is in the direction of gravity, and the curved track chute is formed by smoothly splicing together a vertical chute and a circular arc chute. The length of the vertical track chute is equal to the length of the curved track vertical chute. The lowest point of the vertical track chute is the center of the curved track circular arc chute, and the central angle corresponding to the curved track circular arc chute is 100° to 120°.

[0012] Furthermore, the square column has a sliding groove on its side away from the motor, with the center line of the sliding groove pointing in the direction of gravity. The pressing and pushing component has a first slider, which is slidably installed in the sliding groove of the square column. The first slider is rotatably connected to one end of the first connecting rod. A push rod is fixedly installed on the side of the first connecting rod, and an opening is provided at the other end of the first connecting rod. A second connecting rod is slidably installed in the opening of the first connecting rod. A second slider is rotatably installed on the end of the second connecting rod away from the first connecting rod. A sliding rod is fixedly installed on the lower side of the second slider, and the sliding rod is slidably installed on the lower side of the top plate. A junction box is fixedly installed on the side of the sliding rod.

[0013] Furthermore, the middle part of the blade-shaped groove of the material discharge trough is provided with a semi-elliptical protrusion. The long axis of the semi-elliptical protrusion is in the direction of the edge of the blade-shaped groove. Multiple through holes are provided on both sides of the semi-elliptical protrusion. The surface of the material discharge trough with through holes is arc-shaped and protrudes upward. The center of the arc surface of the material discharge trough is located below the top plate. In the initial state, the upper surface of the blade-shaped groove of the material discharge trough coincides with the upper surface of the top plate. The blade-shaped groove of the material discharge trough has an opening on the side near the motor. A pad is fixedly installed on the upper surface of the top plate near the opening of the blade-shaped groove of the material discharge trough. The upper surface of the pad is arc-shaped.

[0014] Furthermore, a rectangular groove is provided on the upper side of the receiving box. The length of the rectangular groove of the receiving box is equal to the length of the blade-shaped groove of the material discharge chute, and the width of the rectangular groove of the receiving box is equal to the width of the blade-shaped groove of the material discharge chute.

[0015] Furthermore, the lower surface of the pressure plate is provided with a semi-elliptical groove. The semi-elliptical groove of the pressure plate and the semi-elliptical protrusion of the material discharge chute are the same in shape and size. The surfaces on both sides of the semi-elliptical groove of the pressure plate are curved downward in an arc shape. The center of the arc of the arc surface of the pressure plate is located below the pressure plate. The curvature of the arc surface of the pressure plate is equal to that of the arc surface of the material discharge chute.

[0016] The beneficial effects of this invention compared with the prior art are: (1) By placing the tobacco horizontally and staggering the tobacco and the power mechanism, this invention avoids the broken tobacco leaves falling into the power mechanism during the extrusion process, which would cause the power mechanism to jam; (2) By synchronously moving the extrusion mechanism and the receiving mechanism, this invention collects the broken leaves generated during the extrusion process through the synchronous movement of the two mechanisms, avoiding them from falling into the surrounding environment and affecting it; (3) By staggered winding, this invention binds the tobacco leaves more tightly, avoiding the leaves from falling due to insufficient binding force. At the same time, the material discharge trough and the pressure plate are used to spread out the extruded tobacco leaves, which is more conducive to the drying of the tobacco leaves. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a side view of the overall structure of the present invention.

[0019] Figure 3 This is a top view of the overall structure of the present invention.

[0020] Figure 4 This is a schematic diagram showing the connection relationship between the top plate and the support block of the present invention.

[0021] Figure 5 This is a schematic diagram of the support block structure of the present invention.

[0022] Figure 6 This is a schematic diagram showing the connection relationship between the material discharge chute and the support rod of the present invention.

[0023] Figure 7 This is a schematic diagram of the track assembly structure in this invention.

[0024] Figure 8 This is a schematic diagram of the pressure-pushing component structure of the present invention.

[0025] Figure 9 This is a schematic diagram showing the connection relationship between the second slider and the junction box in this invention.

[0026] Figure 10 This is a schematic diagram of the winding assembly structure of the present invention.

[0027] Figure 11 for Figure 10 A magnified view of a portion of point B in the middle.

[0028] Figure 12 This is a front view of the connection relationship between the moving block and the rotating block of the present invention.

[0029] Figure 13 for Figure 9 A magnified view of a portion of point A in the middle.

[0030] Reference numerals: 1-Winding mechanism; 2-Pressing mechanism; 3-Power mechanism; 101-Motor; 102-Turntable; 103-Pin; 104-Motor bracket; 105-Base plate; 106-Fixing ring; 107-Moving block; 108-Groove block; 109-Rotating block; 110-Spring shaft; 201-Top plate; 202-Support block; 203-Discharge chute; 204-Support column; 205-Pressure plate; 206-Connecting rod; 207-Support rod; 208-Vertical track; 209-Curved track; 210-Lower slide groove; 211-Padded block; 301-Driving rod; 302-Square column; 303-First slider; 304-First connecting rod; 305-Push rod; 306-Second connecting rod; 307-Second slider; 308-Sliding rod; 309-Receiver box; 310-Support plate. Detailed Implementation

[0031] The technical solution of the present invention will be further described below in conjunction with specific embodiments.

[0032] As attached Figure 1 ~Attached Figure 10 As shown, the winding mechanism 1 is provided with a base plate 105, a fixing ring 106, and a winding assembly. The pressing mechanism 2 is provided with a top plate 201. Multiple support columns 204 are fixedly installed on the lower side of the top plate 201. The base plate 105 is fixedly installed on the lower side of the support columns 204. The fixing ring 106 and the winding assembly are installed on the upper side of the base plate 105 and are arranged in an alternating manner. The fixing ring 106 is located below the winding assembly. An I-shaped through hole is provided on the upper side of the top plate 201. A support block 202 is fixedly installed above the I-shaped through hole. A blade-shaped notch is provided on the upper side of the support block 202. The size of the blade-shaped notch is smaller than the size of the I-shaped through hole. A track assembly is installed below the I-shaped through hole. A material drop chute 203 is slidably installed in the track assembly. A blade-shaped groove is provided on the material drop chute 203. The blade-shaped groove of the material drop chute 203 is connected to the support block 202. The blade-shaped notches are consistent in shape; the power mechanism 3 is provided with a square column 302, which is fixedly installed on the upper side of the top plate 201, and a driving rod 301 is slidably installed on the outer surface of the square column 302; a pressure plate 205 is installed above the blade-shaped notch of the support block 202, and a connecting rod 206 is hinged to the upper side of the pressure plate 205, which is fixedly connected to the driving rod 301; a lower slide groove 210 is fixedly installed on the lower side of the top plate 201, and a sliding rod 308 is slidably installed on the side of the lower slide groove 210, and a receiving box 309 is fixedly installed on the side of the sliding rod 308, with the upper surface of the receiving box 309 parallel to the upper surface of the top plate 201; the driving rod 301 and the sliding rod 308 are connected by a pressing and pushing assembly, and the moving directions of the driving rod 301 and the sliding rod 308 are perpendicular to each other by the pressing and pushing assembly.

[0033] As attached Figure 1 ~Attached Figure 9As shown, the winding assembly is provided with a motor bracket 104, a motor 101 is fixedly installed on the upper side of the motor bracket 104, a turntable 102 is fixedly installed at the output end of the motor 101, a pin 103 is fixedly installed on the side of the turntable 102 near the top plate 201, the pin 103 has a circular through hole on its outer surface, the pin 103 is eccentric to the turntable 102, and a fixing ring 106 is located on the lower right side of the turntable 102.

[0034] As attached Figure 2 ~Attached Figure 10 As shown, the I-shaped through hole is formed by two horizontal rectangular through holes and one vertical rectangular through hole connected to each other. The two horizontal rectangular through holes are identical in shape and size, with the length of the horizontal rectangular through hole being greater than the length of the vertical rectangular through hole, and the width of the horizontal rectangular through hole being less than the width of the vertical rectangular through hole. The two width-direction end faces of the two horizontal rectangular through holes coincide, and one length-direction end face of each horizontal rectangular through hole coincides with the length-direction end face of the vertical rectangular through hole. Two cylindrical protrusions are respectively provided on each of the two sides of the material discharge chute 203 in the width direction. The four cylindrical protrusions are slidably installed in pairs within each horizontal rectangular through hole. The material discharge chute 203 is located below... Two support rods 207 are fixedly installed on the side; the track assembly is provided with vertical rails 208 and curved rails 209, with two of each. A curved rail 209 is fixedly installed on the lower side of the two ends of the top plate 201 near the horizontal rectangular through hole of the motor 101, and a vertical rail 208 is fixedly installed on the lower side of the two ends of the top plate 201 away from the horizontal rectangular through hole of the motor 101. The sides of both the vertical rails 208 and the curved rails 209 are provided with sliding grooves, and the sliding grooves of the vertical rails 208 and the curved rails 209 are smoothly connected to the end face of the horizontal rectangular through hole of the top plate 201.

[0035] As attached Figure 3 ~Attached Figure 12As shown, the centerline of the vertical track 208 groove is in the direction of gravity. The groove of the curved track 209 is formed by smoothly splicing a vertical groove and a circular arc groove. The length of the vertical track 208 groove is equal to the length of the vertical groove of the curved track 209. The lowest point of the vertical track 208 groove is the center of the circular arc groove of the curved track 209. The central angle corresponding to the circular arc groove of the curved track 209 is 100° to 120°. A groove is provided on the side of the square column 302 away from the motor 101. The centerline of the groove of the square column 302 is in the direction of gravity. The pressing and pushing component is provided with a first slider 303. The first slider 303 is fixedly installed on the lower side of the driving rod 301. The first slider 303 is slidably installed in the groove of the square column 302. The first slider 303 and the first connecting rod 30 4. A push rod 305 is fixedly installed on the side of the first connecting rod 304. An opening is provided at the other end of the first connecting rod 304. A second connecting rod 306 is slidably installed in the opening of the first connecting rod 304. A second slider 307 is rotatably installed at the end of the second connecting rod 306 away from the first connecting rod 304. A sliding rod 308 is fixedly installed on the lower side of the second slider 307. The sliding rod 308 is slidably installed on the lower side of the lower slide groove 210. The lower slide groove 210 is fixedly installed on the lower side of the top plate 201. A receiving box 309 is fixedly installed on the side of the sliding rod 308 near the motor 101. A support plate 310 is fixedly installed on the lower side of the top plate 201. In the initial state, the support plate 310 is in contact with the lower surface of the material drop chute 203.

[0036] As attached Figure 4 ~Attached Figure 13 As shown, the middle part of the blade-shaped groove of the material discharge chute 203 has a semi-elliptical protrusion. The major axis of the semi-elliptical protrusion is along the edge of the blade-shaped groove. Multiple through holes are provided on both sides of the semi-elliptical protrusion. The surface of the material discharge chute 203 with through holes is arc-shaped and protrudes upward. The center of the arc surface of the material discharge chute 203 is located below the top plate 201. In the initial state, the upper surface of the blade-shaped groove of the material discharge chute 203 coincides with the upper surface of the top plate 201. The blade-shaped groove of the material discharge chute 203 has an opening on the side near the motor 101. A pad 211 is fixedly installed on the upper side of the top plate 201 near the opening of the blade-shaped groove of the material discharge chute 203. The surface is arc-shaped; a rectangular groove is provided on the upper side of the receiving box 309, the length of the rectangular groove of the receiving box 309 is equal to the length of the blade-shaped groove of the discharge chute 203, and the width of the rectangular groove of the receiving box 309 is equal to the width of the blade-shaped groove of the discharge chute 203; a semi-elliptical groove is provided on the lower surface of the pressure plate 205, the semi-elliptical groove of the pressure plate 205 and the semi-elliptical protrusion of the discharge chute 203 are the same in shape and size, the surfaces on both sides of the semi-elliptical groove of the pressure plate 205 are curved downward in an arc shape, the center of the arc of the arc surface of the pressure plate 205 is located below the pressure plate 205, and the curvature of the arc surface of the pressure plate 205 is equal to that of the arc surface of the discharge chute 203.

[0037] As attached Figure 9 ~Attached Figure 13 As shown, the winding mechanism 1 is also provided with a slot block 108. There are two slot blocks 108, which are fixedly installed on the upper side of the top plate 201. Each slot block 108 has a movable block 107 slidably installed on its side. The two movable blocks 107 are slidably installed on the outer surface of the spring shaft 110. The spring shaft 110 is fixedly installed on the pad block 211. The outer surface of the spring shaft 110 is provided with two springs, which connect the movable block 107 and the pad block 211 together. Each movable block 107 has a rotating block 109 rotatably installed on its upper side. Each rotating block 109 has a rectangular protrusion on its lower surface. The top plate 201 has two rectangular grooves. The rectangular protrusions of the rotating blocks 109 and the rectangular grooves of the top plate 201 are the same in shape and size. When the rotating blocks 109 rotate to the point where their upper surfaces are parallel to the upper surfaces of the top plate 201, the rectangular protrusions of the rotating blocks 109 are engaged in the rectangular grooves of the top plate 201.

[0038] The working principle of this device is as follows.

[0039] (a) Before starting work, tobacco leaves are placed into the blade-shaped notch of the support block 202. The tobacco leaves fall into the blade-shaped groove of the feed trough 203 through the support block 202. One end of the wire to be wound is wound around the fixing ring 106, and the other end is tied to the outer surface of the fixing ring 106 through the circular through hole of the fixing ring 106. When the tobacco leaves in the feed trough 203 reach a certain thickness, the push rod 305 is pressed down.

[0040] (ii) The push rod 305 drives the first connecting rod 304 to move, the first connecting rod 304 drives the driving rod 301 to move downward, the driving rod 301 drives the connecting rod 206 to move downward, the connecting rod 206 drives the pressure plate 205 to move downward. When the pressure plate 205 moves downward, the semi-elliptical groove of the pressure plate 205 engages with the semi-elliptical protrusion of the material discharge trough 203, and the arc-shaped surfaces of the material discharge trough 203 and the pressure plate 205 also engage, thus starting to squeeze the tobacco leaves.

[0041] (III) While the rod 301 moves downward, the first connecting rod 304 drives the second connecting rod 306 to move, the second connecting rod 306 drives the second slider 307 to move, and the second slider 307 drives the sliding rod 308 to slide along the lower slide groove 210. When the sliding rod 308 slides along the lower slide groove 210, the sliding rod 308 drives the receiving box 309 to move below the discharge chute 203. At the same time, the sliding rod 308 drives the support plate 310 to move. The support plate 310 drives the discharge chute 203 to be supported. When the tobacco leaves are squeezed and broken, the leaves fall into the receiving box 309 through the through hole of the discharge chute 203.

[0042] (iv) When the leaf is squeezed, the rotating blocks 109 on both sides are lifted. The two moving blocks 107 are brought closer to the middle by the elastic force of the spring on the outer surface of the spring shaft 110, thereby squeezing the stem of the tobacco leaf. At the same time, since the upper surface of the pad block 211 is higher than the upper surface of the feed chute 203, the stem of the tobacco leaf is lifted. Then the motor 101 is started, and the motor 101 drives the turntable 102 to rotate. The turntable 102 drives the needle 103 to rotate. The stem of the tobacco leaf is wrapped by the rotation of the needle 103. After the wrapping is completed, the wrapped part is tied by hand and the excess thread is cut off.

[0043] (V) After winding is completed, lift the push rod 305 upward to drive the pressure plate 205, the receiving box 309 and the support plate 310 to move, and drive the support plate 310 to disengage from the lower surface of the contact chute 203. At this time, pull the support rod 207 to drive the chute 203 to slide along the groove of the vertical track 208 and the curved track 209, so as to put down the wound tobacco leaves. Then push the support rod 207 to send the chute 203 back to its original position. Then press the push rod 305 to drive the support plate 310 through the push rod 305. When the support plate 310 moves to the end face of the motor 101 and the through hole of the chute 203, it stops moving.

Claims

1. A tobacco baling and twine wrapping device for use prior to curing, comprising a twine wrapping mechanism (1), characterised in that: Also include pressing mechanism (2) and power mechanism (3), the winding mechanism (1) is provided with bottom plate (105), fixed ring (106) and winding assembly, the pressing mechanism (2) is provided with top plate (201), bottom plate (105) is fixedly installed below top plate (201), fixed ring (106) and winding assembly are installed on the upside of bottom plate (105) and are staggered arrangement, fixed ring (106) is below winding assembly; The upside of top plate (201) is provided with I-shaped through hole, I-shaped through hole is fixedly installed above support block (202), the upside of support block (202) is provided with blade-shaped notch, the size of blade-shaped notch is less than the size of I-shaped through hole, and track group is installed below I-shaped through hole, blanking groove (203) is slidably installed in track group, and blade-shaped groove is arranged on blanking groove (203), the shape of blade-shaped groove of blanking groove (203) is consistent with the shape of blade-shaped notch of support block (202); Power mechanism (3) is provided with square column (302), square column (302) is fixedly installed on the upside of top plate (201), and driving rod (301) is slidably installed on the outer surface of square column (302);Support block (202) blade-shaped notch is installed above pressing plate (205), and the upside of pressing plate (205) is hingedly connected with connecting rod (206), connecting rod (206) is fixedly connected with driving rod (301);The downside of top plate (201) is slidably installed with sliding rod (308), and the side surface of sliding rod (308) is fixedly installed with jack box (309), and the upper surface of jack box (309) is parallel to the upper surface of top plate (201);Driving rod (301) and sliding rod (308) are connected through pressing and pushing assembly, and the movement direction of driving rod (301) and sliding rod (308) is perpendicular to each other through pressing and pushing assembly; The downside of top plate (201) is fixedly installed with lower sliding chute (210), and sliding rod (308) is slidably installed on the downside of lower sliding chute (210), when sliding rod (308) slides along lower sliding chute (210), the broken leaves generated by the extrusion of tobacco leaves fall into jack box (309) through the through hole of blanking groove (203).

2. A tobacco baling and twine wrapping apparatus as claimed in claim 1 wherein: The winding assembly is provided with motor support (104), the upside of motor support (104) is fixedly installed with motor (101), the output end of motor (101) is fixedly installed with rotating disc (102), the side surface close to top plate (201) of rotating disc (102) is fixedly installed with pin (103), pin (103) is eccentric to rotating disc (102), the outer surface of pin (103) is provided with circular through hole, and the fixed ring (106) is located at the right lower part of rotating disc (102).

3. A tobacco baling and twine wrapping apparatus as claimed in claim 1 wherein: The I-shaped through hole is formed by two transverse rectangular through holes and a vertical rectangular through hole, the shape and size of the two transverse rectangular through holes are consistent, the length of the transverse rectangular through hole is greater than the length of the vertical rectangular through hole, the width of the transverse rectangular through hole is less than the width of the vertical rectangular through hole, and the two width direction end faces of the two transverse rectangular through holes are coincided, and the length direction end face of each transverse rectangular through hole is coincided with the length direction end face of the vertical rectangular through hole.

4. A tobacco baling and twine wrapping apparatus as claimed in claim 3 wherein: Two sides of the width direction of the blanking groove (203) are respectively provided with two cylindrical protrusions, and four cylindrical protrusions are slidably installed in two transverse rectangular through holes.

5. A tobacco baling and twine wrapping apparatus as claimed in claim 4 wherein: The track group is provided with vertical tracks (208) and curved tracks (209), and the vertical tracks (208) and the curved tracks (209) are provided with two respectively. The lower sides of the two end faces of the transverse rectangular through hole of the top plate (201) close to the motor (101) are respectively fixedly installed with a curved track (209), and the lower sides of the two end faces of the transverse rectangular through hole of the top plate (201) away from the motor (101) are respectively fixedly installed with a vertical track (208). The vertical tracks (208) and the curved tracks (209) are provided with sliding grooves on the sides, and the sliding grooves of the vertical tracks (208) and the curved tracks (209) are gently connected with the end faces of the transverse rectangular through hole of the top plate (201).

6. A tobacco baling and twine wrapping apparatus as claimed in claim 5 wherein: The center line direction of the sliding groove of the vertical track (208) is the direction of gravity, the sliding groove of the curved track (209) is gently spliced by a vertical sliding groove and a circular arc sliding groove, the length of the sliding groove of the vertical track (208) is equal to the length of the vertical sliding groove of the curved track (209), the lowest point of the sliding groove of the vertical track (208) is the center of the circular arc sliding groove of the curved track (209), and the central angle corresponding to the circular arc sliding groove of the curved track (209) is 100°-120°.

7. A bale twine wrapping apparatus for tobacco prior to curing as defined in claim 4 wherein: The side of the square column (302) away from the motor (101) is provided with a sliding groove, the center line direction of the sliding groove of the square column (302) is the direction of gravity, the pressing and pushing assembly is provided with a first sliding block (303), the first sliding block (303) is slidably installed in the sliding groove of the square column (302), the first sliding block (303) is rotatably connected with one end of a first connecting rod (304), a pushing rod (305) is fixedly installed on the side of the first connecting rod (304), the other end of the first connecting rod (304) is provided with an opening, a second connecting rod (306) is slidably installed in the opening of the first connecting rod (304), a second sliding block (307) is rotatably installed at the end of the second connecting rod (306) away from the first connecting rod (304), a sliding rod (308) is fixedly installed on the lower side of the second sliding block (307), the sliding rod (308) is slidably installed on the lower side of the top plate (201), and a connecting box (309) is fixedly installed on the side of the sliding rod (308).

8. A tobacco baling and twine wrapping apparatus as claimed in claim 5 wherein: The middle part of the blade-shaped groove of the blanking groove (203) is provided with a semi-elliptical protrusion, the long axis direction of the semi-elliptical protrusion is the side line direction of the blade-shaped groove, a plurality of through holes are arranged on the two sides of the semi-elliptical protrusion, the surface of the blanking groove (203) provided with the through holes is arc-shaped upward protrusion, the center of the arc surface of the blanking groove (203) is located below the top plate (201), the upper surface of the blade-shaped groove of the blanking groove (203) is coincided with the upper surface of the top plate (201) in the initial state, the blade-shaped groove of the blanking groove (203) is provided with an opening close to the motor (101), and a pad (211) is fixedly installed on the upper side of the top plate (201) close to the opening of the blade-shaped groove of the blanking groove (203). The upper surface of the pad (211) is arc-shaped.

9. A tobacco baling twine wrapping apparatus prior to curing according to claim 7, wherein: The rectangular recess is arranged on the upper side of the receiving box (309), the length of the rectangular recess of the receiving box (309) is equal to the length of the blade-shaped recess of the blanking groove (203), and the width of the rectangular recess of the receiving box (309) is equal to the width of the blade-shaped recess of the blanking groove (203).

10. A tobacco baling and twine wrapping apparatus as claimed in claim 8 wherein: The lower surface of the pressing plate (205) is provided with a semi-elliptical recess, the semi-elliptical recess of the pressing plate (205) is uniform in shape and size with the semi-elliptical protrusion of the blanking groove (203), the surfaces on both sides of the semi-elliptical recess of the pressing plate (205) are curved downward in an arc shape, the arc centers of the arc-shaped surfaces of the pressing plate (205) are located below the pressing plate (205), and the arc-shaped surfaces of the pressing plate (205) are equal in curvature to the arc surfaces of the blanking groove (203).

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