Flywheel safety device of die cutting platform

Abstract

The utility model provides a flywheel safety device of a die cutting platform, which comprises a motor, a flywheel and a driving shaft, the flywheel is mounted at the tail end of the driving shaft, a belt mounting part is arranged at the front end of the flywheel, a gear ring is mounted at the front end of the belt mounting part, a pneumatic clutch is mounted at the front end of the flywheel, and the pneumatic clutch is mounted on the driving shaft. A belt is installed between the output end of the motor and the belt installation part, the two sides of the front end of the pneumatic clutch are installed on a supporting plate, a flange is installed at the lower end of the supporting plate, a spline shaft penetrates through the flange, and a gear is installed at the tail end of the spline shaft. The gravity of the die cutting platform is prevented from counteracting on operators, and the safety of the operators is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting machines, and more particularly to a flywheel safety device for a die-cutting platform. Background Art

[0002] A die-cutting machine is a device for processing paper. The bottom of the die-cutting platform of the die-cutting machine is installed on a supporting device. The die-cutting platform needs to be lifted periodically to perform die-cutting. The lifting of the die-cutting platform is driven by a crankshaft, and the crankshaft is driven by a driving device. A flywheel is also provided in the existing driving device, such as the application number 2017202098018. However, when there are problems such as jamming sometimes, it is necessary to manually rotate the flywheel. The die-cutting platform will drive the flywheel to rotate in the reverse direction due to its own weight between the high point and the low point, causing the flywheel to rotate by itself. If the hand is not grasped tightly, it may hit the hand and injure the staff. Summary of the Utility Model

[0003] To make up for the above deficiencies, the utility model provides a flywheel safety device for a die-cutting platform. When manually driving the flywheel to rotate, even if the drive shaft rotates, it will not drive the flywheel to rotate, preventing it from acting on the operator in the reverse direction and protecting the safety of the operator.

[0004] The utility model is implemented as follows:

[0005] The utility model provides a flywheel safety device for a die-cutting platform, which includes a motor, a flywheel and a drive shaft. The flywheel is installed at the end of the drive shaft. A belt installation part is provided at the front end of the flywheel, and a toothed ring is installed at the front end of the belt installation part. A pneumatic clutch is installed at the front end of the flywheel, and the pneumatic clutch is installed on the drive shaft. A belt is installed between the output end of the motor and the belt installation part. Both sides of the front end of the pneumatic clutch are installed on a support plate, and a flange is installed at the lower end of the support plate. A spline shaft passes through the flange, and a gear is installed at the end of the spline shaft. When the gear is directly below the toothed ring, the gear meshes with the toothed ring.

[0006] In a preferred embodiment, a first retaining ring and a second retaining ring are installed in the flange. A retaining part is provided on the spline shaft. A spring is installed between the first retaining ring and the second retaining ring, and the spring is sleeved on the spline shaft. The second retaining ring is installed in the flange.

[0007] In a preferred embodiment, the length of the second retaining ring is greater than the length of the retaining part.

[0008] In a preferred embodiment, the front end of the support plate is installed with a first fixing plate through a plurality of mounting posts, the front end of the first fixing plate is installed with a second fixing plate through a plurality of mounting posts, bearings are installed at the centers of the first fixing plate and the second fixing plate, and both ends of the fixing seat are installed at the bearings. The spline shaft passes through the fixing seat.

[0009] In a preferred embodiment, a brake pad is installed on one side of the fixed seat. Both sides of the brake pad are connected to a disc brake, and the disc brake is installed on the first fixing plate.

[0010] In a preferred embodiment, a positioning ring is also installed. The positioning ring is located between the first fixing plate and the flange. A stop post mounting post is installed on the support plate. One end of the stop post is installed on the stop post mounting post, and a handle is installed at one end of the stop post. The handle is located at the lower end of one of the mounting posts.

[0011] When the gear meshes with the gear ring, the stop post is located between the second fixing plate and the positioning ring.

[0012] When the gear is separated from the gear ring, the stop post is located above the positioning ring.

[0013] In a preferred embodiment, a cylinder is also provided. The cylinder is installed on a cylinder mounting plate, and the cylinder mounting plate is installed on the support plate. When the gear is separated from the gear ring, the output end of the cylinder is located between the positioning ring and the flange, and the output shaft of the cylinder is perpendicular to the spline shaft.

[0014] Advantageous effects:

[0015] By providing a pneumatic clutch in the present utility model, the connection and separation between the flywheel and the drive shaft can be controlled. When the drive shaft is manually driven, the flywheel is separated from the drive shaft, so that the drive shaft will not drive the flywheel to rotate, ensuring the safety of the operator when manually driving the flywheel to rotate; a brake pad and a disc brake are provided at the spline shaft. The brake pad is loosened during manual operation and clamped after the operation is completed. In this way, a stable state is achieved after the operation is completed, preventing shaking and ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of another perspective of the present utility model;

[0019] Figure 3 is a schematic diagram of the flywheel of the present utility model;

[0020] Figure 4 is a partial schematic diagram of the present utility model;

[0021] Figure 5Partial schematic diagram of the present utility model;

[0022] Figure 6 Partial schematic diagram of the present utility model;

[0023] Figure 7 Partial schematic diagram of the present utility model;

[0024] Figure 8 is Figure 7 Schematic diagram after removing the flange in

[0025] Figure 9 Schematic diagram of the spline shaft of the present utility model. Specific implementation manner

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] As shown in the figure, the present utility model provides a flywheel safety device for a die-cutting platform, which includes a motor 1, a flywheel 2 and a drive shaft 3. The flywheel 2 is installed at the end of the drive shaft 3. A belt installation part 201 is provided at the front end of the flywheel 2. A gear ring 4 is installed at the front end of the belt installation part 201. A pneumatic clutch 5 is installed at the front end of the flywheel 2. The pneumatic clutch 5 is installed on the drive shaft 3. A belt 6 is installed between the output end of the motor 1 and the belt installation part 201. Both sides of the front end of the pneumatic clutch 5 are installed on a support plate 7. A flange 8 is installed at the lower end of the support plate 7. A spline shaft 9 passes through the flange 8. A gear 10 is installed at the end of the spline shaft 9. When the gear 10 is directly below the gear ring 4, the gear 10 meshes with the gear ring 4. After stopping work, the pneumatic clutch 5 separates the flywheel 2 from the drive shaft 3. When working, the pneumatic clutch 5 connects the flywheel 2 to the drive shaft 3. After separation, manually rotate the spline shaft 9. The spline shaft 9 drives the gear ring 4 to rotate, and the gear ring 4 drives the flywheel 2 to rotate to achieve the purpose. When driving the flywheel to rotate, due to the action of gravity, the die-cutting platform itself will drive the drive shaft 3 and the flywheel 2 to rotate in reverse, which acts on the operator and poses a safety hazard. The present utility model connects the flywheel 2 and the drive shaft 3 through the pneumatic clutch 5 to play a clutch role. After separation, even if the drive shaft 3 rotates, it cannot drive the flywheel 2 to rotate in reverse.

[0028] In an embodiment of the present utility model, a first retaining ring 11 and a second retaining ring 12 are installed inside the flange 8. A retaining portion 91 is provided on the spline shaft 9. A spring 13 is installed between the first retaining ring 11 and the second retaining ring 12. The spring 13 is sleeved on the spline shaft, and the second retaining ring 12 is installed inside the flange 8. The second retaining ring 12 does not move, while the first retaining ring 11 moves, thus stretching the spring. After manually rotating the spline shaft and finishing the inspection, the spring 13 plays a role in resetting, causing the spline shaft 9 to move back, and the spline shaft 9 separates from the gear ring 4.

[0029] In an embodiment of the present utility model, the length of the second retaining ring 12 is greater than the length of the retaining portion 91.

[0030] In an embodiment of the present utility model, the front end of the support plate 7 is installed with a first fixing plate 15 through a plurality of mounting posts 14. The front end of the first fixing plate 15 is installed with a second fixing plate 16 through a plurality of mounting posts 14. Bearings 17 are installed at the centers of the first fixing plate 15 and the second fixing plate 16. Both ends of the fixed seat 18 are installed at the bearings 17, and the spline shaft 9 passes through the fixed seat 18. The fixed seat 18 serves to install the spline shaft.

[0031] In an embodiment of the present utility model, a brake pad 19 is installed on one side of the fixed seat 18. Both sides of the brake pad 19 are connected to the disc brake 20, and the disc brake 20 is installed on the first fixing plate 15. By controlling the disc brake 20, the brake pad 19 can be braked or released.

[0032] In an embodiment of the present utility model, a positioning ring 21 is also installed. The positioning ring 21 is located between the first fixing plate 15 and the flange 8. A retaining post mounting post 22 is installed on the support plate 7. One end of a retaining post 23 is installed on the retaining post mounting post 22, and a handle 24 is installed at one end of the retaining post 22. The handle 24 is located at the lower end of one of the mounting posts 22. After pushing the spline shaft 9 to engage with the gear ring 4, push the handle 24 upward. In this way, the other end of the retaining post 23 moves downward to block the positioning ring 21, preventing the spline shaft 9 from moving back. The center of gravity of the retaining post 23 here is at the end away from the handle. In this way, it will not rotate in the reverse direction. After the inspection is completed, press the handle downward, causing the other end of the retaining post 23 to move upward. The spline shaft 9 drives the positioning ring 21 to move, and then put down the handle 24. Due to the gravity, one end of the retaining post 23 presses above the positioning ring 21.

[0033] When the gear 10 meshes with the gear ring 4, the retaining post 23 is located between the second fixing plate 16 and the positioning ring 21;

[0034] When the gear 10 separates from the gear ring 4, the retaining post 23 is located above the positioning ring 21.

[0035] In an embodiment of the present utility model, a cylinder 25 is further provided. The cylinder 25 is installed on a cylinder mounting plate 26, and the cylinder mounting plate 26 is installed on a support plate 7. When the gear 10 is separated from the gear ring 4, the output end of the cylinder 10 is located between the positioning ring 21 and the flange 8, and the output shaft of the cylinder 25 is perpendicular to the spline shaft 9. When not in operation, the cylinder 25 operates, and its output end extends out and is stuck between the positioning ring 21 and the flange 8 to play a limiting role.

Claims

1. A flywheel safety device for a die-cutting platform, comprising a motor, a flywheel and a drive shaft, characterized in that: The flywheel is installed at the end of the driving shaft, a belt mounting portion is provided at the front end of the flywheel, a gear ring is installed at the front end of the belt mounting portion, a pneumatic clutch is installed at the front end of the flywheel, the pneumatic clutch is installed on the driving shaft, a belt is installed between the output end of the motor and the belt mounting portion, both sides of the front end of the pneumatic clutch are installed on a supporting plate, a flange is installed at the lower end of the supporting plate, a spline shaft passes through the flange, a gear is installed at the end of the spline shaft, and when the gear is located directly below the gear ring, the gear meshes with the gear ring.

2. The flywheel safety device of the die-cutting platform according to claim 1, characterized in that: A retaining ring 1 and a retaining ring 2 are installed in the flange, a retaining portion is provided on the spline shaft, a spring is installed between the retaining ring 1 and the retaining ring 2, the spring is sleeved on the spline shaft, and the retaining ring 2 is installed in the flange.

3. The flywheel safety device of the die-cutting platform according to claim 2, characterized in that: The length of the second retaining ring is greater than the length of the retaining portion.

4. The flywheel safety device of the die-cutting platform according to claim 1, characterized in that: The front end of the support plate is installed with fixed plate one through several installation columns, and the front end of fixed plate one is installed with fixed plate two through several installation columns. Bearings are installed at the centers of fixed plate one and fixed plate two, and both ends of the fixed seat are installed at the bearings, and the spline shaft passes through the fixed seat.

5. The flywheel safety device of the die-cutting platform according to claim 4, characterized in that: A brake pad is installed on one side of the fixing seat, and both sides of the brake pad are connected with a disc brake, and the disc brake is installed on the fixing plate one.

6. The flywheel safety device of the die-cutting platform according to claim 4, characterized in that: A positioning ring is also installed, the positioning ring is located between the fixing plate 1 and the flange, a retaining column mounting column is installed on the support plate, one end of the retaining column is installed on the retaining column mounting column, and a handle is installed at one end of the retaining column, and the handle is located at the lower end of one of the mounting columns. When the gear is meshed with the gear ring, the blocking column is located between the second fixing plate and the positioning ring; When the gear is separated from the ring gear, the stop post is located above the locating ring.

7. The flywheel safety device of the die-cutting platform according to claim 6, characterized in that: A cylinder is also provided, which is mounted on a cylinder mounting plate, and the cylinder mounting plate is mounted on a support plate. When the gear is separated from the gear ring, the output end of the cylinder is located between the positioning ring and the flange, and the output shaft of the cylinder is perpendicular to the spline shaft.

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