Cutter shaft supporting device of slitting machine

Abstract

The utility model discloses a slitting machine cutter shaft supporting device which comprises a base and a cutter shaft arranged on the base, and a driving gear is arranged at one end of the cutter shaft and used for driving the cutter shaft to rotate. A first supporting assembly and a second supporting assembly which are used for supporting the cutter shaft to rotate are arranged on the base, and the first supporting assembly is arranged on the side away from the outward extending end of the cutter shaft and can apply pre-tightening force to the cutter shaft; the first supporting assembly and the second supporting assembly are located on the two sides of the driving gear correspondingly. The pre-tightening component is located in the first supporting assembly and used for keeping the axial pre-tightening force of the cutter shaft; the problem that the cutter shaft is prone to moving or moving in the axis direction of the cutter shaft when working is solved, and the quality and precision of machined workpieces can be improved.

Description

Technical Field

[0001] This application relates to the field of slitting machine technology, and specifically to a slitting machine cutter shaft support device. Background Technology

[0002] The cutter shaft of the slitting machine needs to be supported by a support structure to ensure its smooth operation in order to slit the workpiece.

[0003] A fixing device for the axial movement of a strip steel disc scissor shaft, with announcement number CN210451150U, uses four rows of cylindrical roller bearings and double rows of tapered roller bearings to fix the axial movement of the cutter shaft. However, this device is costly, and when the cutter shaft rotates for a long time, the locking nut that locks the cutter shaft may loosen, causing the cutter shaft to move or move along its own axis. This can lead to unstable movement of the slitting machine cutter shaft in the axial direction, which will reduce the positioning accuracy during the cutting process and thus reduce the quality of the processed workpiece. Utility Model Content

[0004] This application provides a slitting machine cutter shaft support device to overcome the shortcomings of the prior art, and adopts the following technical solution:

[0005] The slitting machine cutter shaft support device includes a base and a cutter shaft mounted on the base. One end of the cutter shaft is provided with a drive gear for driving the cutter shaft to rotate.

[0006] The base is provided with a first support assembly and a second support assembly for supporting the rotation of the cutter shaft. The first support assembly is located on the side away from the extended end of the cutter shaft and can apply a preload force to the cutter shaft.

[0007] The first support assembly and the second support assembly are respectively located on both sides of the drive gear;

[0008] A preload component located within the first support assembly is used to maintain the axial preload of the cutter shaft.

[0009] Preferably, the first support assembly includes a first sidewall, and a pressure plate and a locking assembly are provided on the cutter shaft. A rotating component is provided between the cutter shaft and the first sidewall. The pre-tightening component is provided between the locking assembly and the pressure plate. The locking assembly presses the pressure plate against the first sidewall through the pre-tightening component.

[0010] More preferably, end caps are provided on both sides of the first sidewall for sealing, and a rotating component is provided between the pressure plate and the first sidewall for connecting them. The rotating component is fitted onto the cutter shaft to limit the position of the cutter shaft.

[0011] More preferably, the locking assembly includes a fastener and a spacer disposed between the fastener and the pressure plate, with both ends of the spacer abutting against the fastener and the pressure plate, respectively.

[0012] More preferably, the second support assembly includes a second sidewall arranged parallel to the first sidewall, and bearing seats and cover plates disposed on both sides of the second sidewall. The bearing seats are rotatably connected to the cutter shaft, and the cutter shaft is provided with a rotating component three that is rotatably connected to the second sidewall.

[0013] Preferably, the preload component is a disc spring.

[0014] Preferably, both the first support assembly and the second support assembly are provided with sealing components.

[0015] The advantages of this application compared to the prior art are as follows:

[0016] This application can stably support the rotation of the cutter shaft by setting the first support component and the second support component on both sides of the gear, thereby reducing the runout of the cutter shaft. The pre-tightening component can maintain the pre-tightening force on the cutter shaft, making it difficult for the cutter shaft to move or swerve in the axial direction when it is working, thereby improving the quality and accuracy of the machined workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application.

[0018] In the diagram: 1. Base, 2. Cutting shaft, 3. First support assembly, 31. First side wall, 32. Rotating component one, 33. Pressure plate, 34. Locking assembly, 341. Fastener, 342. Spacer, 4. Second support assembly, 41. Second side wall, 42. Rotating component three, 43. Bearing seat, 44. Cover plate, 5. Butterfly spring, 6. Drive gear, 7. End cover, 8. Rotating component two, 9. Sealing component. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] See Figure 1Further explanation of this application: A slitting machine cutter shaft support device includes a base 1, a drive gear 6, and a cutter shaft 2. The drive gear 6 is located at the left end of the cutter shaft 2 and is used to drive the cutter shaft 2 to rotate. A first support component 3 and a second support component 4 are arranged opposite to each other on the base 1. The first support component 3 is used to apply a preload to the cutter shaft 2 to fix it and support its rotation. The second support component 4 is used to support the rotation of the cutter shaft 2. The first support component 3 and the second support component 4 are respectively located on both sides of the drive gear 6, which can support the stable rotation of the cutter shaft 2. The first support component 3 is located on the side away from the extended end of the cutter shaft 2. Figure 1 The first support assembly 3 is located on the left side of the drive gear, so as to apply a preload to fix the cutter shaft 2; the first support assembly 3 is also provided with a preload component, which is a disc spring 5; the preload component is used to cooperate with the first support assembly 3 to maintain the axial preload on the cutter shaft 2, so as to prevent the cutter shaft 2 from loosening during operation, moving or shifting along the axis of the cutter shaft 2, thereby ensuring the quality and accuracy of the processed workpiece.

[0021] In this embodiment, the first support assembly 3 includes a first sidewall 31 disposed on the base 1, and a pressure plate 33 and a locking assembly 34 disposed on the cutter shaft 2. A rotating component 32 is provided between the cutter shaft 2 and the first sidewall 31, and the rotating component 32 is sleeved on the cutter shaft 2. The rotating component 32 is a bearing. The locking assembly 34 is used to push the pressure plate 33 against the first sidewall 31 to apply a preload force to the cutter shaft 2. The butterfly spring 5 is disposed between the locking assembly 34 and the pressure plate 33. The two ends of the butterfly spring 5 abut against the pressure plate 33 and the locking assembly 34 respectively. The locking assembly 34 compresses the butterfly spring 5, pushing the pressure plate 33 against the first sidewall 31 to apply a preload force to the cutter shaft 2. The butterfly spring 5 deforms after being compressed to store energy, thereby maintaining the axial preload force on the cutter shaft 2 and preventing the cutter shaft 2 from moving along the axial direction.

[0022] The locking assembly 34 includes a fastener 341 and a spacer 342 disposed between the fastener 341 and the pressure plate 33. The two ends of the spacer 342 abut against the fastener 341 and the pressure plate 33 respectively. The fastener 341 is threadedly connected to the cutter shaft 2. The fastener 341 can move along the axial direction of the cutter shaft 2 to push the spacer 342 to compress the disc spring 5. The fastener 341 is a locking nut.

[0023] The second support assembly 4 includes a second sidewall 41, and bearing seats 43 and cover plates 44 disposed on both sides of the second sidewall 41. The second sidewall 41 is arranged parallel to the first sidewall 31. The bearing seats 43 are rotatably connected to the cutter shaft 2, and a bearing is provided in the bearing seats 43 to support the rotation of the cutter shaft 2. The cutter shaft 2 is provided with a rotating component 3 42 rotatably connected to the second sidewall 41. The rotating component 3 42 is a bearing. The first support assembly 3 and the second support assembly 4 can support the stable rotation of the cutter shaft 2 and can reduce the runout of the cutter shaft 2 during rotation.

[0024] Both the rotating component 32 and the rotating component 42 abut against the cutter shaft 2, which can limit the position of the cutter shaft 2 and ensure the position of the left end of the cutter shaft 2 on the base 1.

[0025] The first sidewall 31 is provided with end caps 7 on both sides for sealing. The end caps 7, the bearing seat 43 and the cover plate 44 are all provided with sealing components 9. The sealing components 9 are used to prevent external impurities from entering the first support assembly 3 and the second support assembly 4. The sealing components can be sealing rings. The pressure plate 33 is connected to the first sidewall 31 by a rotating component 8 to reduce wear.

Claims

1. A slitting machine cutter shaft support device, characterized in that: It includes a base and a cutter shaft disposed on the base, wherein one end of the cutter shaft is provided with a drive gear for driving the cutter shaft to rotate; The base is provided with a first support assembly and a second support assembly for supporting the rotation of the cutter shaft. The first support assembly is located on the side away from the extended end of the cutter shaft and can apply a preload force to the cutter shaft. The first support assembly and the second support assembly are respectively located on both sides of the drive gear; A preload component located within the first support assembly is used to maintain the axial preload of the cutter shaft.

2. The slitting machine cutter shaft support device according to claim 1, characterized in that: The first support assembly includes a first sidewall, and a pressure plate and a locking assembly are provided on the cutter shaft. A rotating component is provided between the cutter shaft and the first sidewall. A pre-tightening component is provided between the locking assembly and the pressure plate. The locking assembly presses the pressure plate against the first sidewall through the pre-tightening component.

3. The slitting machine cutter shaft support device according to claim 2, characterized in that: The first sidewall is provided with end caps for sealing on both sides. The pressure plate is connected to the first sidewall by a rotating component. The rotating component is mounted on the cutter shaft to limit the position of the cutter shaft.

4. The slitting machine cutter shaft support device according to claim 2, characterized in that: The locking assembly includes a fastener and a spacer disposed between the fastener and the pressure plate, with both ends of the spacer abutting against the fastener and the pressure plate, respectively.

5. The slitting machine cutter shaft support device according to claim 2, characterized in that: The second support assembly includes a second sidewall arranged parallel to the first sidewall, and bearing seats and cover plates disposed on both sides of the second sidewall. The bearing seats are rotatably connected to the cutter shaft, and the cutter shaft is provided with a rotating component three that is rotatably connected to the second sidewall.

6. The slitting machine cutter shaft support device according to claim 1, characterized in that: The preload component is a disc spring.

7. The slitting machine cutter shaft support device according to claim 1, characterized in that: Both the first support assembly and the second support assembly are equipped with sealing components.

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