Jump cutting machine with cutter height fine adjustment mechanism
By designing the cutting height fine-tuning mechanism of turbine, worm and fine-tuning motor in the cutting machine, the problem of inaccurate height adjustment after the cutting knife is worn is solved, and the precise fine-tuning and stability of the cutting knife height is achieved, and the quality of the cutting blade is improved.
Patent Information
- Application Number
- CN202420597001.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-26
AI Technical Summary
After a long time of use, the cutting blade of the existing cutting machine will wear out, resulting in inaccurate adjustment of the cutting blade height, affecting the cutting quality.
A cutting knife height fine-tuning mechanism including turbine, worm and fine-tuning motor is designed. Through the turbine and worm transmission ratio of the eccentric structure, the cutting knife height can be accurately fine-tuned, and the self-locking mechanism ensures that the height after adjustment remains unchanged.
The precision fine-tuning of the cutting tool height is achieved, the jump quality of the cutting machine is improved, and the stability and accuracy of the cutting tool height is ensured.
Smart Images
Figure CN222754526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of jump cutting equipment, in particular to a jump cutting machine with a cutter height fine-tuning mechanism. Background Art
[0002] In the prior art, plastic sheets and metal sheets are formed in whole sheets or rolls. During the application process, the sheets need to be cut. During the cutting process, the sheets are either cut completely into pieces or cut in half and connected. The lower sheet can be separated by slightly tearing.
[0003] The height of the cutter of the jump cutter can be adjusted according to the thickness of the sheet. The existing jump cutters mostly adjust the height of the cutter by adjusting the screw, but the adjustment accuracy of the adjusting screw is limited. After the jump cutter is used for a long time, the blade of the cutter will wear. The amount of blade wear is relatively small, which makes the height change of the blade smaller. In this case, the cutter needs to be fine-tuned, and the existing adjusting screw method is difficult to accurately adjust the height of the cutter, thereby affecting the jump cutting quality of the jump cutter.
[0004] For this reason, it is necessary to design a jump cutter that can fine-tune the cutter height. Utility Model Content
[0005] In order to solve the deficiencies of the prior art, the utility model provides a jump cutter with a cutter height fine-adjustment mechanism.
[0006] The utility model provides a jump cutter with a cutter height fine-tuning mechanism, comprising a cutter and a cutter height fine-tuning mechanism, wherein the cutter is mounted on a cutter seat, and the cutter seat is transmission-connected to an eccentric wheel on a drive shaft through a connecting rod; the cutter height fine-tuning mechanism comprises a turbine, a worm and a fine-tuning motor, the turbine is eccentrically connected to the drive shaft, the turbine and the drive shaft are connected through a bearing that does not limit the self-rotation of the drive shaft, the turbine is transmission-connected to the worm, and the worm is transmission-connected to the adjustment motor, and when the cutter height is fine-tuned, the fine-tuning motor drives the turbine to rotate through the worm, and the turbine drives the drive shaft to rotate eccentrically around the axial direction of the turbine to adjust the height of the drive shaft and the cutter.
[0007] In some embodiments, the turbine is provided with an eccentric hole, the drive shaft is installed in the eccentric hole through a bearing, the inner wall of the eccentric hole is interference fit with the outer ring of the bearing, and the inner ring of the bearing is interference fit with the outer wall of the drive shaft.
[0008] In some embodiments, a frame is included, a bottom plate is arranged on the frame, guide plates are vertically arranged on both sides of the bottom plate in the length direction, and the knife seat moves up and down along the guide plates.
[0009] In some of the embodiments, the fine-tuning motor is transmission-connected to a reducer, the reducer is fixed inside the frame via a bracket, and the worm is transmission-connected to the reducer.
[0010] In some embodiments, the cutter height fine-adjustment mechanism includes a sleeve, which is fixedly connected to the frame, coaxially sleeved on the turbine, with a notch formed in the sleeve, and the turbine is connected to the worm at the notch.
[0011] In some embodiments, the shaft sleeve is provided with an axial hole, the turbine is installed in the axial hole, two limit blocks are provided on the inner wall of the axial hole, a limit rod is provided on the end face of the turbine, and the limit rod moves in the area formed between the two limit blocks.
[0012] In some of the embodiments, an end cover is installed at the axial hole of the sleeve.
[0013] In some embodiments, a guide groove is provided on the inner side of the guide plate, and the knife seat is slidably connected to the guide groove.
[0014] In some embodiments, a driving gear is provided on the driving shaft, and the driving gear is connected to the driving motor through a driving belt.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the height of the drive shaft is controlled by the eccentric structure of the turbine, thereby adjusting the height of the cutter, and the fine adjustment of the cutter height is achieved by the larger transmission ratio between the turbine and the worm. After the turbine rotates into place, the drive shaft cannot drive the turbine to rotate due to the self-locking of the turbine and worm, thereby ensuring that the height of the drive shaft will not change automatically after the adjustment is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of a jump cutter with a cutter height fine-adjustment mechanism according to an embodiment of the present application.
[0017] Figure 2 This is one of the internal structure schematic diagrams of the jump cutter with a cutter height fine-adjustment mechanism according to an embodiment of the present application.
[0018] Figure 3 This is the second schematic diagram of the internal structure of the jump cutter with a cutter height fine-adjustment mechanism according to an embodiment of the present application.
[0019] Reference numerals: 1, cutting knife; 11, knife seat; 12, adjusting seat; 13, height adjustment screw; 14, micrometer;
[0020] 2. Knife pad;
[0021] 3. Frame; 31. Bottom plate; 32. Guide plate; 33. Guide groove;
[0022] 41. driving motor; 42. driving shaft; 43. eccentric wheel; 44. connecting rod; 45. driving gear;
[0023] 5. Cutter height fine-tuning mechanism; 51. Fine-tuning motor; 52. Turbine; 53. Worm; 54. Eccentric hole; 55. Speed reducer; 56. Bracket;
[0024] 6. Bearings;
[0025] 7. Bushing; 71. Limit block; 72. Limit rod; 73. End cover; 74. Notch. DETAILED DESCRIPTION
[0026] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.
[0027] refer to Figure 1 The figure is a three-dimensional structural schematic diagram of a jump cutting machine with a cutter height fine-adjustment mechanism. The lower part is a frame 3, a cutter 1 is arranged on the upper part of the frame 3 platform, and a cutter height fine-adjustment mechanism 5 is arranged inside the frame 3. The sheet to be jump cut is placed on the platform of the right frame 3, and the sheet is gradually pushed under the cutter 1 for jump cutting. The processed sheet is unloaded at the left frame 3.
[0028] refer to Figures 1 to 3 A jump cutter with a cutter height fine-tuning mechanism comprises a cutter 1 and a cutter height fine-tuning mechanism 5. The cutter 1 is mounted on a cutter seat 11, and the cutter seat 11 is connected to an eccentric wheel 43 on a drive shaft 42 through a connecting rod 44; the cutter height fine-tuning mechanism 5 comprises a turbine 52, a worm 53 and a fine-tuning motor 51. The turbine 52 is eccentrically connected to the drive shaft 42, and the turbine 52 and the drive shaft 42 are connected through a bearing 6 that does not limit the rotation of the drive shaft 42. The turbine 52 is connected to the worm 53, and the worm 53 is connected to the adjustment motor. When the height of the cutter 1 is fine-tuned, the fine-tuning motor 51 drives the turbine 52 to rotate through the worm 53, and the turbine 52 drives the drive shaft 42 to rotate eccentrically around the axial direction of the turbine 52 to adjust the height of the drive shaft 42 and the cutter 1.
[0029] The jump cutter with a cutter height fine-tuning mechanism in this embodiment sets the turbine 52 to be eccentric. The rotating turbine 52 raises or lowers the height of the drive shaft 42. The knife holder 11 and the cutter 1 change height together with the drive shaft 42 through the connecting rod 44. The larger transmission ratio between the turbine 52 and the worm 53 is used to achieve fine adjustment of the height of the cutter 1. After the turbine 52 rotates into place, the drive shaft 42 cannot drive the turbine 52 to rotate due to the self-locking of the turbine 52 and the worm 53, thereby ensuring that the height of the drive shaft 42 will not change automatically after the adjustment is completed.
[0030] It needs to be further explained that the cutter 1 and the knife seat 11 are arranged above the frame 3 in a reciprocating manner through the drive shaft 42, the eccentric wheel 43 and the connecting rod 44, the knife pad 2 is installed on the frame 3 and is located below the cutter 1, a base plate 31 is provided on the frame 3, and guide plates 32 are vertically arranged on both sides of the length direction of the base plate 31, the knife pad 2 is installed on the base plate 31, and the knife seat 11 moves up and down along the guide plate 32.
[0031] In order to ensure that the rotation of the drive shaft 42 does not drive the turbine 52, in this embodiment, Figure 3 The turbine 52 is provided with an eccentric hole 54 , and the drive shaft 42 is installed in the eccentric hole 54 through a bearing 6 . The inner wall of the eccentric hole 54 is interference fit with the outer ring of the bearing 6 , and the inner ring of the bearing 6 is interference fit with the outer wall of the drive shaft 42 .
[0032] It is understandable that, with such an arrangement, the drive shaft 42 is separated from the turbine 52 by the bearing 6, ensuring that the rotation of the drive shaft 42 will not affect the turbine 52, and the rotation of the turbine 52 can be converted into the lifting and lowering of the drive shaft 42 in the eccentric hole 54, thereby achieving the adjustment of the height of the cutter 1.
[0033] In order to guide the knife holder 11 and the cutter 1 to move up and down, in this embodiment, reference Figure 2 and Figure 3 , including a frame 3, a bottom plate 31 is arranged on the frame 3, guide plates 32 are vertically arranged on both sides of the bottom plate 31 in the length direction, and the knife seat 11 moves up and down along the guide plates 32.
[0034] It is understandable that, in such a configuration, the knife pad 2 is mounted on the bottom plate 31 , and the cutter 1 and the knife seat 11 move up and down along the guide plate 32 , thereby guiding the cutter 1 to move back and forth up and down above the knife pad 2 .
[0035] In order to stably drive the worm gear 52 and the worm gear 53, in this embodiment, reference Figure 3 The fine-tuning motor 51 is transmission-connected to a reducer 55 , the reducer 55 is fixed inside the frame 3 through a bracket 56 , and the worm 53 is transmission-connected to the reducer 55 .
[0036] It is understandable that, with such an arrangement, the speed reducer 55 reduces the rotation speed and increases the torque, so that the worm 53 can have a larger torque to drive the turbine 52 to rotate, ensuring that there is enough power between the turbine 52 and the worm 53.
[0037] In order to stably install the worm gear 52 and the worm gear 53, in this embodiment, reference Figure 3 The cutter height fine-tuning mechanism 5 includes a sleeve 7, which is fixedly connected to the frame 3, and the sleeve 7 is coaxially arranged on the turbine 52. The sleeve 7 is provided with a notch 74, and the turbine 52 is connected to the worm 53 at the notch 74.
[0038] It is understandable that, with such an arrangement, the shaft sleeve 7 is slidably connected to the turbine 52 , and the turbine 52 is supported by the shaft sleeve 7 , thereby ensuring the height stability of the turbine 52 and ensuring the accuracy of the height fine-tuning of the cutter 1 .
[0039] In order to control the height adjustment range of the driving shaft 42 and avoid affecting the transmission between the driving motor 41 and the driving shaft 42, in this embodiment, reference Figure 2 The shaft sleeve 7 is provided with a shaft hole, the turbine 52 is installed in the shaft hole, two limit blocks 71 are provided on the inner wall of the shaft hole, a limit rod 72 is provided on the end surface of the turbine 52, and the limit rod 72 moves in the area formed between the two limit blocks 71.
[0040] It can be understood that, with such an arrangement, an angle area in which the turbine 52 can rotate is formed between the two limit blocks 71, the fine-tuning motor 51 drives the worm 53 and the turbine 52 to rotate, and the limit rod 72 rotates with the turbine 52. When the limit block 71 contacts the limit rod 72, the limit block 71 prevents the limit rod 72 and the turbine 52 from continuing to rotate, thereby preventing the turbine 52 from rotating excessively and exceeding the adjustable range of the drive shaft 42, thereby ensuring safety.
[0041] In order to protect the structural safety between the turbine 52 and the worm 53, in this embodiment, reference Figure 1 An end cover 73 is installed at the shaft hole of the shaft sleeve 7.
[0042] It is understandable that, with such an arrangement, the shaft hole of the shaft sleeve 7 is sealed by the end cover 73 to prevent foreign matter from entering between the turbine 52 and the worm 53 , thereby ensuring the safe use of the cutter height fine-tuning mechanism 5 .
[0043] In order to stably guide the movement of the knife seat 11, in this embodiment, reference Figure 3 A guide groove 33 is provided inside the guide plate 32 , and the knife seat 11 is slidably connected to the guide groove 33 .
[0044] In order to drive the driving shaft 42 to rotate, in this embodiment, Figure 2 and Figure 3 A driving gear 45 is provided on the driving shaft 42, and the driving gear 45 is connected to the driving motor 41 through a driving belt.
[0045] It can be understood that, with such an arrangement, the driving motor 41 drives the driving gear 45 on the driving shaft 42 to rotate through the belt, thereby driving the driving shaft 42 and the eccentric wheel 43 to rotate, and the eccentric wheel 43 drives the connecting rod 44 to swing up and down, thereby driving the knife seat 11 and the cutter 1 to move up and down, and the cutter 1 moves up and down relative to the knife pad 2, so that the sheet material that the frame 3 moves to the knife pad 2 can be skipped.
[0046] It needs to be further explained that an adjustment seat 12 is provided on one side of the knife seat 11, the cutter 1 is fixed under the adjustment seat 12, the knife seat 11 is installed between the two guide plates 32, and the adjustment seat 12 is installed on one side of the knife seat 11 through multiple height adjustment screws 13. According to different sheets, the height of the cutter 1 is adjusted by rotating the height adjustment screw 13, and multiple micrometers 14 are provided between the lifting plate and the connecting seat. The change in the distance between the adjustment seat 12 and the knife seat 11 is displayed by the micrometer 14, so that the height change when the height adjustment screw 13 adjusts the adjustment seat 12 can be accurately seen.
[0047] It can be understood that, with such a configuration, the distance between the cutter 1 and the knife seat 11 is adjusted by the height adjustment screw 13, thereby adjusting the height of the cutter 1, forming a method for adjusting the height of the cutter 1, and then on this basis, the cutter height fine-tuning mechanism 5 is used to fine-tune the cutter 1, thereby accurately adjusting the height of the cutter 1 and improving the jump cutting quality of the jump cutting machine.
[0048] The cutter height fine-adjusting mechanism 5 of the present embodiment accurately adjusts the height of the drive shaft 42 and the cutter 1 through the turbine 52 and worm 53 structure, thereby compensating for the problem of the cutter blade 1 moving upward due to wear.
[0049] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A skip cutting machine with a cutter height fine-tuning mechanism, characterized in that: It includes a cutter and a cutter height fine-tuning mechanism, the cutter is installed on a cutter seat, and the cutter seat is connected to the eccentric wheel on the drive shaft through a connecting rod; the cutter height fine-tuning mechanism includes a turbine, a worm and a fine-tuning motor, the turbine is eccentrically connected to the drive shaft, the turbine and the drive shaft are connected through a bearing that does not limit the rotation of the drive shaft, the turbine is connected to the worm, and the worm is connected to the adjustment motor. When the cutter height is fine-tuned, the fine-tuning motor drives the turbine to rotate through the worm, and the turbine drives the drive shaft to rotate eccentrically around the axial direction of the turbine to adjust the height of the drive shaft and the cutter.
2. The jump cutter with a cutter height fine-tuning mechanism according to claim 1, characterized in that: The turbine is provided with an eccentric hole, the drive shaft is installed in the eccentric hole through a bearing, the inner wall of the eccentric hole is interference fit with the outer ring of the bearing, and the inner ring of the bearing is interference fit with the outer wall of the drive shaft.
3. The jump cutter with a cutter height fine-tuning mechanism according to claim 1, characterized in that: The machine comprises a frame, a bottom plate is arranged on the frame, guide plates are vertically arranged on both sides of the bottom plate in the length direction, and the knife seat moves up and down along the guide plates.
4. The jump cutter with a cutter height fine-tuning mechanism according to claim 3, characterized in that: The fine-tuning motor is transmission-connected with a reducer, the reducer is fixed inside the frame through a bracket, and the worm is transmission-connected with the reducer.
5. The jump cutter with a cutter height fine-tuning mechanism according to claim 3, characterized in that: The cutter height fine-adjusting mechanism comprises a shaft sleeve, the shaft sleeve is fixedly connected to the frame, the shaft sleeve is coaxially sleeved on the turbine, a notch is formed in the shaft sleeve, and the turbine is connected to the worm at the notch.
6. The jump cutter with a cutter height fine-tuning mechanism according to claim 5, characterized in that: The shaft sleeve is provided with an axial hole, the turbine is installed in the axial hole, the inner wall of the axial hole is provided with two limit blocks, the end surface of the turbine is provided with a limit rod, and the limit rod moves in the area formed between the two limit blocks.
7. The jump cutter with a cutter height fine-adjustment mechanism according to claim 6, characterized in that: An end cover is installed at the shaft hole of the shaft sleeve.
8. The jump cutter with a cutter height fine-adjustment mechanism according to claim 3, characterized in that: A guide groove is arranged on the inner side of the guide plate, and the knife seat is slidably connected with the guide groove.
9. The jump cutter with a cutter height fine-tuning mechanism according to claim 1, characterized in that: The driving shaft is provided with a driving gear, and the driving gear is connected to the driving motor through a driving belt.