A rope tensioning mechanism for a bale wrapper knotter

Abstract

The utility model belongs to the technical field of bundling machine, concretely relates to a rope tensioning mechanism for knotter of bundling machine, including transmission shaft and hawk mouth, the transmission shaft fixed connection is established at hawk mouth top, the hawk mouth lateral wall has been seted up with the through groove, the through groove rotation is connected with the clamp plate in, transmission shaft lateral wall rotation is connected with the mounting plate, the clamp plate surface has been seted up with the sliding slot, the sliding slot sliding connection has the sliding block in, fixed connection has the spring between sliding block and sliding slot, sliding block top surface has been seted up with a plurality of recess, be provided with tensioning subassembly in the recess, the mounting plate lateral wall is provided with tensioning control subassembly, the utility model can be in hawk mouth rotation process with the rope tensioning, guarantee the fastening degree of bundling, avoid appearing the knot loose, lead to the bundling failure.

Description

Technical Field

[0001] This utility model belongs to the field of baling machine technology, specifically relating to a rope tensioning mechanism for a baling machine knotter. Background Technology

[0002] In the baler operation process, the knotter is the core component for bundling materials such as straw and hay, while rope tensioning is the key step for the knotter to complete the bundling, knotting, and locking. Its tensioning effect directly determines the tightness of the bales, transportation stability, and subsequent storage safety.

[0003] A patent search revealed that Chinese patent application number CN202023174700.2 discloses a locking device for the knotter in a baler. This device controls the movement of the locking block with a spring, allowing the locking block to lock the knotter turntable. This prevents the knotter turntable from rebounding after one rotation, thus affecting the next knotting operation and ensuring stable operation of the baler. It is suitable for various harsh environments.

[0004] Because the surface of the eagle's beak is relatively smooth and it is designed with an angled structure, the rope is prone to slipping when placed on the eagle's beak. As the eagle's beak rotates, although the rope is wrapped, the adhesion decreases. After being bundled, the rope is prone to shaking, and the knot is not very secure, so it cannot tighten the rope. Utility Model Content

[0005] The purpose of this invention is to provide a rope tensioning mechanism for the knotter of a baler, which can tighten the rope during the rotation of the beak, ensuring the tightness of the baling and preventing the knot from loosening and causing baling failure.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A rope tensioning mechanism for a baler knotter includes a drive shaft and a beak. The drive shaft is fixedly connected to the top of the beak. A through groove is provided on the side wall of the beak. A pressure plate is rotatably connected in the through groove. A mounting plate is rotatably connected to the side wall of the drive shaft.

[0008] The pressure plate has a groove on its surface, a slider is slidably connected in the groove, a spring is fixedly connected between the slider and the groove, and a plurality of grooves are formed on the top surface of the slider, with tensioning components installed in the grooves.

[0009] The mounting plate is provided with a tension control assembly on its side wall.

[0010] Furthermore, the tensioning assembly includes a movable plate disposed within the groove, a round shaft fixedly connected to the side wall of the movable plate, the other end of the round shaft being rotatably connected to the side wall of the groove, a torsion spring being fitted to the side wall of the round shaft, and a shielding assembly being provided on the side wall of the slider.

[0011] Furthermore, the blocking component includes a limiting plate fixedly connected to the side wall of the slider, and the side wall of the slide groove is provided with a limiting groove corresponding to the limiting plate, and the limiting plate is slidably connected to the limiting groove.

[0012] Furthermore, the tensioning control assembly includes a steel wire fixedly connected to the side wall of the slider. The slide groove and the beak side wall have through holes, through which the steel wire passes. A spiral plate is fixedly connected to the bottom surface of the mounting plate. The spiral plate has an L-shaped cross-section. Two annular plates are provided on the lower side of the mounting plate. The inner annular plate is fixedly connected to the drive shaft, and the outer annular plate is fixedly connected to the mounting plate. A limit block is fixedly connected to the inner wall of the outer annular plate. A lifting rod is movably connected to the top surface of the limit block. The lifting rod is U-shaped, and the other end of the steel wire is fixedly connected to one end of the lifting rod. The other end of the lifting rod extends to the spiral plate.

[0013] Furthermore, a ball bearing is rotatably connected to the end face of the lifting rod near the spiral plate, and the ball bearing abuts against the spiral plate.

[0014] Furthermore, several anti-slip protrusions are fixedly connected to the top surface of the movable plate.

[0015] Furthermore, an arc-shaped baffle is fixedly connected to the bottom surface of the movable plate away from the circular axis.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This utility model discloses a rope tensioning mechanism for a baler knotter. Through the cooperation of a drive shaft, a beak, a pressure plate, a tensioning assembly, and a tensioning control assembly, when the beak rotates to tie a knot, the steel wire pulls the slider to move. The movable plate and anti-slip protrusions are used to tighten the rope and prevent the rope from coming off the pressure plate. This ensures the tightness of the rope without affecting the baling and knotting process. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the spiral plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the slider of this utility model;

[0022] Figure 5 This is a partial cross-sectional view of the slider of this utility model;

[0023] Figure 6 This is a utility model Figure 2 Enlarged view of point A in the image;

[0024] Figure 7 This is a utility model Figure 2 Enlarged view of point B in the image.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Drive shaft; 2. Beak; 3. Pressure plate; 4. Mounting plate; 5. Slide groove; 6. Slider; 7. Movable plate; 8. Round shaft; 9. Torsion spring; 10. Arc-shaped baffle; 11. Anti-slip protrusion; 12. Limiting plate; 13. Limiting groove; 14. Steel wire; 15. Spring; 16. Through hole; 17. Annular plate; 18. Limiting block; 19. Lifting rod; 20. Spiral plate. Detailed Implementation

[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0028] like Figures 1-7 As shown, a rope tensioning mechanism for a baler knotter includes a drive shaft 1 and a beak 2. The drive shaft 1 is fixedly connected to the top of the beak 2. A through groove is provided on the side wall of the beak 2. A pressure plate 3 is rotatably connected in the through groove. A mounting plate 4 is rotatably connected to the side wall of the drive shaft 1.

[0029] The surface of the pressure plate 3 is provided with a groove 5, and a slider 6 is slidably connected in the groove 5. A spring 15 is fixedly connected to the slider 6 and the groove 5. Multiple grooves are provided on the top surface of the slider 6, and tensioning components are provided in the grooves.

[0030] Tension control components are provided on the four side walls of the mounting plate.

[0031] like Figure 5 and Figure 6 As shown, the tensioning assembly includes a movable plate 7 disposed within a groove. A round shaft 8 is fixedly connected to the side wall of the movable plate 7, and the other end of the round shaft 8 is rotatably connected to the side wall of the groove. A torsion spring 9 is mounted on the side wall of the round shaft 8, and a blocking assembly is provided on the side wall of the slider 6. An arc-shaped baffle 10 is fixedly connected to the bottom surface of the movable plate 7 away from the round shaft 8.

[0032] Several anti-slip protrusions 11 are fixedly connected to the top surface of the movable plate 7. The anti-slip protrusions 11 can be made of metal or rubber, etc., to increase the friction between the protrusions and the rope. After knotting, when the beak 2 retracts, the movable plate 7 can be retracted into the groove by the displacement force, and the rope will detach from the surface of the movable plate 7 to achieve knotting.

[0033] When the slider 6 moves the movable plate 7, it can pull the rope to move. During this process, the displacement of the slider 6 is small, but it can prevent the rope from slipping and tighten it. In addition, the force of the torsion spring 9 can make the movable plate 7 flip into the groove. At the same time, the arc-shaped baffle 10 can prevent the rope from getting stuck between the movable plate 7 and the slider 6. On the other hand, it can also provide limiting support for the movable plate 7 when it is stored.

[0034] like Figure 6 As shown, the shielding assembly includes a limiting plate 12 fixedly connected to the side wall of the slider 6, and a limiting groove 13 corresponding to the limiting plate 12 is opened on the side wall of the slide groove 5. The limiting plate 12 and the limiting groove 13 are slidably connected. The shielding assembly can keep the groove portion on the surface of the slider 6 in a closed state, which on the one hand prevents impurities from entering the groove during use and affecting the displacement of the slider 6, and on the other hand provides support for the rope.

[0035] like Figure 6 and Figure 7 As shown, the tensioning control assembly includes a steel wire 14 fixedly connected to the side wall of the slider 6. The slide groove 5 and the side wall of the beak 2 are provided with through holes 16, through which the steel wire 14 passes. A spiral plate 20 is fixedly connected to the bottom surface of the mounting plate 4. The spiral plate 20 has an L-shaped cross-section. Two annular plates 17 are provided on the lower side of the mounting plate 4. The inner annular plate 17 is fixedly connected to the drive shaft 1, and the outer annular plate 17 is fixedly connected to the mounting plate 4. A limit block 18 is fixedly connected to the inner wall of the outer annular plate 17. A lifting rod 19 is movably connected to the top surface of the limit block 18. The lifting rod 19 is U-shaped. The other end of the steel wire 14 is fixedly connected to one end of the lifting rod 19, and the other end of the lifting rod 19 extends to the spiral plate 20.

[0036] The displacement of the slider 6 does not require external driving components; it can be achieved through the linkage between the mounting plate 4 and the transmission shaft 1. The spiral plate 20 is in an upward spiral state, and the transmission shaft 1 drives the lifting rod 19 to move along the spiral plate 20. The lifting rod 19 is in an upward moving state.

[0037] like Figure 7 As shown, a ball bearing is rolled onto the end face of the lifting rod 19 near the spiral plate 20, and the ball bearing abuts against the spiral plate 20. The ball bearing reduces the friction between the lifting rod 19 and the spiral plate 20, making the movement more stable.

[0038] The working principle of this utility model is as follows: When the rope is placed on the beak 2, the rope is positioned on the movable plate 7. The beak 2 rotates, and the lifting rod 19 moves along the trajectory of the spiral plate 20 through the ball bearings, causing the lifting rod 19 to rise. The lifting rod 19 pulls the slider 6 to rotate through the steel wire 14. The slider 6 drives the movable plate 7 to move. The anti-slip protrusions 11 on the movable plate 7 can increase the friction with the rope. Slightly pulling the rope moves it, which on the one hand achieves the purpose of preventing slippage, and on the other hand ensures the tightness when knotting. After the beak 2 rotates, the lifting rod 19 falls from the tail end of the spiral plate 20 to the starting end of the spiral plate 20. When the pressure plate 3 opens and bites another rope and then closes, the displacement of the beak 2 tightens the rope. At the same time, the rope on the movable plate 7 is pulled away by the tension, and the torsion spring 9 is pulled to make the movable plate 7 flip into the groove, which facilitates the rope to detach. After the knotting is completed, the spring 15 returns the slider 6 to its original position.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A rope tensioning mechanism for a baler knotter, characterized in that: Includes a drive shaft (1) and a beak (2). The drive shaft (1) is fixedly connected to the top of the beak (2). A through groove is provided on the side wall of the beak (2). A pressure plate (3) is rotatably connected in the through groove. A mounting plate (4) is rotatably connected to the side wall of the drive shaft (1). The pressure plate (3) has a groove (5) on its surface. A slider (6) is slidably connected in the groove (5). A spring (15) is fixedly connected between the slider (6) and the groove (5). The top surface of the slider (6) has multiple grooves. A tensioning component is provided in the groove. The mounting plate (4) is provided with a tension control assembly on its side wall.

2. The rope tensioning mechanism for a baler knotter according to claim 1, characterized in that: The tensioning assembly includes a movable plate (7) disposed in the groove, a round shaft (8) fixedly connected to the side wall of the movable plate (7), the other end of the round shaft (8) being rotatably connected to the side wall of the groove, a torsion spring (9) being mounted on the side wall of the round shaft (8), and a shielding assembly being provided on the side wall of the slider (6).

3. A rope tensioning mechanism for a baler knotter according to claim 2, characterized in that: The shielding assembly includes a limiting plate (12) fixedly connected to the side wall of the slider (6), and the side wall of the slide groove (5) is provided with a limiting groove (13) corresponding to the limiting plate (12), and the limiting plate (12) and the limiting groove (13) are slidably connected.

4. A rope tensioning mechanism for a baler knotter according to claim 1, characterized in that: The tension control assembly includes a steel wire (14) fixedly connected to the side wall of the slider (6). The slide groove (5) and the side wall of the beak (2) are provided with through holes (16). The steel wire (14) passes through the through holes (16). The bottom surface of the mounting plate (4) is fixedly connected to a spiral plate (20). The spiral plate (20) has an L-shaped cross section. The mounting plate (4) has two annular plates (17) on its lower side. The inner annular plate (17) is fixedly connected to the drive shaft (1). The outer annular plate (17) is fixedly connected to the mounting plate (4). The inner wall of the outer annular plate (17) is fixedly connected to a limit block (18). The top surface of the limit block (18) is movably connected to a lifting rod (19). The lifting rod (19) is U-shaped. The other end of the steel wire (14) is fixedly connected to one end of the lifting rod (19). The other end of the lifting rod (19) extends to the spiral plate (20).

5. A rope tensioning mechanism for a baler knotter according to claim 4, characterized in that: The lifting rod (19) has a ball bearing rolled on one end face near the spiral plate (20), and the ball bearing abuts against the spiral plate (20).

6. A rope tensioning mechanism for a baler knotter according to claim 2, characterized in that: The top surface of the movable plate (7) is fixedly connected with several anti-slip protrusions (11).

7. A rope tensioning mechanism for a baler knotter according to claim 2, characterized in that: An arc-shaped baffle (10) is fixedly connected to the bottom surface of the movable plate (7) away from the circular shaft (8).

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