Anti-twisting jumping-out mechanism for cylinder belt

Abstract

The utility model discloses an anti-twist jumping-out mechanism for a cylinder belt, which relates to textile after-finishing equipment and comprises depended wheel components and a belt jumping-out prevention component, the depended wheel components are symmetrically arranged on two sides of the cylinder belt, and the belt jumping-out prevention component is fixed on a cylinder swing arm; a bearing and a depended wheel mandrel are arranged in the depended wheel, and the two ends of the depended wheel mandrel are fixedly connected with the upper pressing plate and the lower pressing plate through fixing bolts; the belt jumping-out prevention assembly comprises a rocker arm, a pressing wheel assembly, a guide sleeve and a fixing shaft, the inner arc of the rocker arm is matched with the diameter of a cylinder driving belt wheel, the pressing wheel assembly comprises two pressing wheels and a connecting plate, bearings and eccentric shafts are arranged in the pressing wheels, the two ends of the connecting plate are fixed to the eccentric shafts respectively, and the other ends of the eccentric shafts are fixed to the rocker arm. The torsional strength of the depended wheel assembly is improved, stress deformation is prevented, and it is guaranteed that a belt runs stably; and a belt jumping-out prevention assembly is additionally arranged, and the belt is pressed through a pressing wheel, so that the belt is effectively prevented from jumping out of a belt groove.

Description

Technical Field

[0001] This utility model relates to textile finishing equipment, specifically to a cylinder belt anti-torsion jump-out mechanism. Background Technology

[0002] Currently, belt-driven napping machines require belt drive to generate power for napping production. A certain number of napping needle rollers are evenly distributed on the cylinder of the napping machine. The drive pulley is located below the cylinder and is connected to the V-belt pulley on the needle roller via a belt. The drive pulley transmits power to the V-belt pulley, driving the needle roller to move. The lower drive pulley needs to maintain a certain wrap angle to ensure reliable power transmission; therefore, two symmetrical guide pulley assemblies are installed above the drive pulley. After the belt is tensioned, a certain radial force is generated on the guide pulleys. Commercially available guide pulley spindles are fixed on one side, which easily causes the spindle to bend and twist under stress, resulting in a large error in the parallelism between the guide pulley and the belt pulley. This causes the belt to run off-center, jump out of the belt groove during operation, or even break.

[0003] In case of an emergency stop during production, pressing the emergency stop button will cause the cylinder to lift the drive pulley upwards via the swing arm. Once the drive pulley is lifted, the cylinder loses power and slowly stops under friction. At this point, the belt is completely slack and risks jumping out of the belt groove. Furthermore, after prolonged operation of the napping machine, the belt will gradually lengthen due to material fatigue. With the swing arm limit unchanged, the distance between the belt and the drive pulley's belt groove will gradually increase, further increasing the risk of the belt jumping out of the groove during operation and emergency stops. After the emergency stop resets, the drive pulley presses the belt down. Belts that have jumped out of the groove may not remain in their original position and could be crushed by the drive pulley's rim. Alternatively, multiple belts may slip out of the groove simultaneously and twist together. If the napping machine is restarted at this point, the increased radial force on the belts could cause them to break.

[0004] Therefore, how to better prevent the cylinder belt from twisting or jumping out has become a key issue. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cylinder belt anti-torsion jump-out mechanism. The anti-torsion strength of the guide wheel assembly is improved to prevent deformation under stress and ensure stable belt operation. The addition of a belt anti-jump-out component, which presses the belt with a pressure wheel, effectively prevents the belt from jumping out of the belt groove.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cylinder belt anti-torsion jump-out mechanism, comprising a guide wheel assembly and a belt anti-jump-out assembly, wherein the guide wheel assembly is symmetrically arranged on both sides of the cylinder belt, and the belt anti-jump-out assembly is fixed to the cylinder swing arm;

[0007] The wheel assembly includes a wheel, a wheel base, an upper pressure plate, a lower pressure plate, a wheel spindle, and a bearing I. The wheel has a bearing inside, and the bearing has a wheel spindle inside. The two ends of the wheel spindle are fixedly connected to the upper pressure plate and the lower pressure plate by fixing bolts. The upper pressure plate and the lower pressure plate are fixedly connected to the wheel base.

[0008] The belt anti-jump assembly includes a rocker arm, a pressure roller assembly, a guide sleeve, and a fixed shaft. The inner arc of the rocker arm matches the diameter of the cylinder drive pulley. The pressure roller assembly includes two pressure rollers and a connecting plate. The pressure rollers are equipped with bearing II and an eccentric shaft. Both ends of the connecting plate are fixed to the eccentric shaft, and the other end of the eccentric shaft is fixed to the rocker arm. The guide sleeve is fixed to the upper part of the rocker arm and is equipped with a pin and a compression spring. The fixed shaft is fixed to the cylinder rocker arm.

[0009] As a preferred embodiment, the bottom of the wheel base is provided with mounting holes, and the wheel assembly is fixed to the frame by bolts and mounting holes.

[0010] As a further improvement, a bushing is provided outside the fixed shaft, and a composite bushing is provided between the fixed shaft and the bushing.

[0011] As a further improvement, the pin end is provided with a handle.

[0012] As a preferred embodiment, the upper pressure plate and the lower pressure plate are connected to the wheel seat body by pressure plate bolts.

[0013] The beneficial effects of this utility model are as follows: The two ends of the guide wheel spindle are fixedly installed by upper and lower pressure plates to form a frame structure, which increases the maximum load of the guide wheel spindle, prevents the guide wheel spindle from tortuous deformation under force, ensures the accuracy of the guide wheel, improves the torsional strength, and ensures the stable operation of the belt. A belt anti-jump component is added, and the rocker arm, eccentric shaft, and pressure roller form an integral structure. An adjustable eccentric pressure roller is used to limit the belt position on the drive pulley. The eccentric shaft can adjust the distance between the pressure roller and the main drive pulley, ensuring that the distance between the drive pulley and the pressure roller is less than the thickness of the belt, keeping the belt in the belt groove in a slack state. After the machine stops suddenly, the pressure roller can effectively press the belt to prevent it from jumping out. The fixed shaft is fixed on the rocker arm, and the rocker arm can rotate around the fixed shaft at a certain angle, leaving space for belt replacement, facilitating belt maintenance and replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the support wheel assembly structure in an embodiment of the present utility model. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the support wheel assembly structure in an embodiment of the present utility model. Figure 2 ;

[0017] Figure 4 This is a cross-sectional schematic diagram of the guide wheel assembly according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the belt anti-jump component structure according to an embodiment of the present utility model;

[0019] Figure 6 This is a front view schematic diagram of the belt anti-jump component according to an embodiment of this utility model;

[0020] Figure 7 This is a cross-sectional schematic diagram of the belt anti-jump component according to an embodiment of the present utility model;

[0021] Figure 8 This is a schematic diagram of the installation position according to an embodiment of the present invention;

[0022] Figure 9 This is a schematic diagram showing the belt position when the drive pulley is lifted, without the belt anti-jump component installed in this embodiment of the utility model.

[0023] Figure 10 This is a schematic diagram showing the belt position when the drive pulley is lifted after the belt anti-jump component is installed in an embodiment of this utility model.

[0024] Figure 11 This is a schematic diagram showing the position of the belt anti-jump component when replacing the belt, according to an embodiment of this utility model.

[0025] In the diagram: 1. Auxiliary roller; 2. Auxiliary roller seat; 3. Upper pressure plate; 4. Lower pressure plate; 5. Auxiliary roller spindle; 6. Bearing I; 7. Pressure plate bolt; 8. Fixing bolt; 9. Mounting hole; 10. Rocker arm; 11. Guide sleeve; 12. Pin; 13. Fixing shaft; 14. Eccentric shaft; 15. Pressure roller; 16. Connecting plate; 17. Bearing II; 18. Fixing bolt; 19. Nut; 20. Compression spring; 21. Handle; 22. Bolt; 23. Composite bushing; 24. Auxiliary roller assembly; 25. Belt anti-jump assembly; 26. Cylinder belt; 27. Cylinder swing arm; 28. Cylinder drive pulley. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1As shown, a cylinder belt anti-torsion jump-out mechanism includes a guide wheel assembly 24 and a belt anti-jump-out assembly 25. The guide wheel assembly 24 is symmetrically arranged on both sides of the cylinder belt 26, and the belt anti-jump-out assembly 25 is fixed on the cylinder swing arm 27.

[0028] like Figures 2-4 As shown, the wheel assembly 24 includes a wheel 1, a wheel base 2, an upper pressure plate 3, a lower pressure plate 4, a wheel spindle 5, and a bearing I6. The wheel 1 contains the bearing I6, and the bearing I6 contains the wheel spindle 5. The two ends of the wheel spindle 5 are fixedly connected to the upper pressure plate 3 and the lower pressure plate 4 by fixing bolts 8. The upper pressure plate 3 and the lower pressure plate 4 are connected to the wheel base 2 by pressure plate bolts 7. The bottom of the wheel base 2 is provided with mounting holes 9, and the wheel assembly 24 is fixed to the frame by bolts and mounting holes 9.

[0029] like Figures 5-7 As shown, the belt anti-jump assembly 25 includes a rocker arm 10, a pressure roller assembly, a guide sleeve 11, and a fixed shaft 13. The inner arc of the rocker arm 10 matches the diameter of the cylinder drive pulley 28. The pressure roller assembly includes two pressure rollers 15 and a connecting plate 16. The pressure rollers 15 are equipped with a bearing II 17 and an eccentric shaft 14. Both ends of the connecting plate 16 are fixed to the eccentric shaft 14 by fixing bolts 18, and the other end of the eccentric shaft 14 is fixed to the rocker arm 10 by a nut 19. The guide sleeve 11 is installed on the upper part of the rocker arm 10 by bolts 22. The guide sleeve 11 is equipped with a pin 12 and a compression spring 20. The end of the pin 12 is equipped with a handle 21. The fixed shaft 13 is fixed to the cylinder swing arm 27. A bushing is provided on the outside of the fixed shaft 13, and a composite bushing 23 is provided between the fixed shaft 13 and the bushing.

[0030] In actual use: After the raising machine starts running, the drive pulley 28 drives the cylinder belt 26. When the guide pulley 1 is under pressure from the cylinder belt 26, the two ends of the guide pulley spindle 5 are evenly stressed, resulting in a larger contact area between the cylinder belt 26 and the guide pulley 1. This makes the bending radius of the cylinder belt 26 larger than that of commonly used guide pulleys, effectively preventing torsional deformation and extending the service life of the cylinder belt 26. After the raising machine stops suddenly, the drive pulley 28 lifts up (e.g., Figure 8 As shown), after the cylinder belt 26 loses power, the pressure decreases and it becomes slack. In this slack state, the cylinder belt 26 tends to slip outwards (as shown). Figure 9 As shown), at this time, the pressure roller 15 blocks the outwardly disengaging cylinder belt 26, thus confining the cylinder belt 26 within the belt groove and effectively preventing the cylinder belt 26 from coming off (as shown). Figure 10 (As shown). When the belt needs to be replaced, the operator holds handle 21 and pulls the pin 12 outward. The operator then holds the belt anti-jump assembly 25 and rotates it around the fixed shaft 13 at a certain angle. The space left allows for the replacement of the cylinder belt 26 (as shown). Figure 11 (As shown).

Claims

1. A barrel belt anti-twist jump-out mechanism characterized by: Including the leaning wheel assembly (24) and the belt anti-jumping assembly (25), the leaning wheel assembly (24) is symmetrically arranged on both sides of the cylinder belt (26), and the belt anti-jumping assembly (25) is fixed on the cylinder swing arm (27); The leaning wheel assembly (24) includes a leaning wheel (1), a leaning wheel seat body (2), an upper pressing plate (3), a lower pressing plate (4), a leaning wheel shaft (5) and a bearing I (6), the bearing I (6) is arranged in the leaning wheel (1), the leaning wheel shaft (5) is arranged in the bearing I (6), the leaning wheel shaft (5) is fixedly connected with the upper pressing plate (3) and the lower pressing plate (4) through fixing bolts (8) at both ends, and the upper pressing plate (3) and the lower pressing plate (4) are fixedly connected with the leaning wheel seat body (2); The belt anti-jumping assembly (25) includes a rocker arm (10), a pressing wheel assembly, a guide sleeve (11) and a fixed shaft (13), the inner arc of the rocker arm (10) is matched with the diameter of the cylinder driving pulley (28), the pressing wheel assembly includes two pressing wheels (15) and a connecting plate (16), the pressing wheel (15) is provided with a bearing II (17) and an eccentric shaft (14) in the pressing wheel (15), the connecting plate (16) is fixed at both ends of the eccentric shaft (14), and the other end of the eccentric shaft (14) is fixed with the rocker arm (10); the guide sleeve (11) is fixed on the upper part of the rocker arm (10), the guide sleeve (11) is provided with a latch (12) and a compression spring (20) in the guide sleeve (11); the fixed shaft (13) is fixed with the cylinder swing arm (27).

2. A mechanism for preventing the twisting and jumping off of a drum belt as claimed in claim 1, characterized in that: The bottom of the leaning wheel seat body (2) is provided with a mounting hole (9), and the leaning wheel assembly (24) is fixed with the rack through bolts and the mounting hole (9).

3. A mechanism for preventing the twisting and jumping off of a screen belt as claimed in claim 1, wherein: The fixed shaft (13) is provided with a shaft sleeve, and a composite bushing (23) is arranged between the fixed shaft (13) and the shaft sleeve.

4. A snout belt anti-twist jump out mechanism as claimed in claim 1, characterized in that: The end of the latch (12) is provided with a handle (21).

5. A barrel belt anti-twist jump out mechanism as claimed in claim 1, characterized in that: The upper pressing plate (3) and the lower pressing plate (4) are connected with the leaning wheel seat body (2) through pressing plate bolts (7). The bottom of the leaning wheel seat body (2) is provided with a mounting hole (9), and the leaning wheel assembly (24) is fixed with the rack through bolts and the mounting hole (9).

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