Film inner core positioning structure for cutting machine

Abstract

The utility model relates to the technical field of cutting machines, in particular to a thin film inner core positioning structure for a cutting machine, which comprises a cutting rack, a guide roller arranged on the cutting rack and used for guiding cut thin film strips, and a slip shaft rotationally connected to the cutting rack and positioned below the guide roller and used for rolling the thin film strips, the slip shaft is sleeved with a plurality of inner core bodies, the inner core bodies are distributed at intervals in the axial direction of the slip shaft, the slitting rack is movably connected with a positioning rod located on one side of the slip shaft, the axial direction of the positioning rod is parallel to the axial direction of the slip shaft, the positioning rod is provided with a positioning sleeve, and the positioning sleeve is sleeved with the inner core bodies. The multiple positioning sleeves are distributed in the axial direction of the positioning rod at intervals, the number of the positioning sleeves corresponds to that of the inner core bodies, and the end faces of the inner core bodies abut against the end faces of the corresponding positioning sleeves. The mounting structure has the effect of improving the mounting efficiency of the inner core body.

Description

Technical Field

[0001] This application relates to the field of slitting machine technology, and in particular to a film core positioning structure for a slitting machine. Background Technology

[0002] A slitting machine is a mechanical device that cuts wide sheets of paper, mica tape, or film into multiple narrow strips. It is commonly used in papermaking machinery, wire and cable mica tape production, and printing and packaging machinery. After the film is slitted, each individual film strip needs to be wound up, so multiple cores for winding the film strips need to be fixed on a slip shaft.

[0003] After one round of slitting and winding, the film strip is cut, a new inner core is replaced, and the end of the film strip is glued to the new inner core. As the differential shaft rotates, the inner core rotates along with it to achieve winding. Since each inner core is independent, it needs to be installed in a corresponding position on the winding roller to ensure that the slid film strip is accurately wound around the inner core. In existing technology, workers need to repeatedly adjust the positions of multiple inner cores on the differential shaft, reducing the installation efficiency of the inner cores, thus requiring further improvement. Utility Model Content

[0004] To improve the installation efficiency of the inner core, this application provides a film inner core positioning structure for a slitting machine.

[0005] The film core positioning structure for a slitting machine provided in this application adopts the following technical solution:

[0006] A film core positioning structure for a slitting machine includes a slitting frame, a guide roller disposed on the slitting frame to guide the slitted film strips, and a slip shaft rotatably connected to the slitting frame and located below the guide roller to perform a winding operation on the film strips. The slip shaft is fitted with a core body, and multiple core bodies are provided and spaced apart along the axial direction of the slip shaft. The slitting frame is movably connected to a positioning rod located on one side of the slip shaft, the axial direction of the positioning rod being parallel to the axial direction of the slip shaft. The positioning rod is provided with a positioning sleeve, and multiple positioning sleeves are provided and spaced apart along the axial direction of the positioning rod. The number of positioning sleeves corresponds to the number of core bodies, and the end face of the core body abuts against the end face of the corresponding positioning sleeve.

[0007] By adopting the above technical solution, under normal circumstances, the positioning rod is located on one side of the differential shaft. When a new inner core body needs to be replaced, the staff will put multiple new inner core bodies on the differential shaft and make a rough adjustment of the position of multiple inner core bodies by visual inspection. Then, the positioning rod will be moved so that the outer peripheral wall of the positioning rod abuts against the outer peripheral wall of the inner core body. At this time, the positioning sleeve is located on one side of the corresponding inner core body. Subsequently, the inner core body will be moved so that the end face of the inner core body abuts against the end face of the corresponding positioning sleeve for positioning, which improves the installation efficiency of the inner core body. After adjusting the position of multiple inner core bodies, the positioning rod will move and reset. Finally, the end of the film strip will be glued to the outer wall of the new inner core body, and the winding operation will be carried out as the differential shaft rotates.

[0008] Preferably, the slitting frame is hinged to a swing arm located on one side of the slip shaft, the free end of the swing arm is fixedly connected to the positioning rod, and the hinge point of the swing arm is axially parallel to the axial direction of the slip shaft.

[0009] By adopting the above technical solution, the positioning rod can swing flexibly on one side of the differential shaft via the swing arm, which makes it easy for staff to quickly adjust the position of the positioning rod when replacing the inner core body, thereby improving the installation efficiency of the inner core body.

[0010] Preferably, the slitting frame is provided with a limiting block for the free end sidewall of the swing arm to abut against, and the hinge point of the swing arm is located between the differential shaft and the limiting block.

[0011] By adopting the above technical solution, the limit block can effectively limit the range of motion of the swing arm and prevent the swing arm from swinging excessively, causing the positioning rod to collide with other parts on the cutting frame.

[0012] Preferably, the slitting frame is provided with a first cylinder, the cylinder body of the first cylinder is hinged to the slitting frame, and the piston rod of the first cylinder is hinged to the free end of the swing arm.

[0013] By adopting the above technical solution, when a new inner core body needs to be replaced, the piston rod of the first cylinder extends, pushing the swing arm to rotate around the hinge point, so that the positioning rod approaches the differential shaft and abuts against the outer peripheral wall of the inner core body, which facilitates the precise positioning of the inner core body; after the inner core body is installed, the piston rod of the first cylinder retracts, pulling the swing arm to reset, so that the positioning rod is away from the differential shaft, avoiding interference with subsequent winding operations.

[0014] Preferably, the positioning sleeve is slidably fitted onto the positioning rod, and a fixing member is provided between the positioning rod and the positioning sleeve to fix the positioning sleeve.

[0015] By adopting the above technical solution, the positioning sleeve can slide on the positioning rod, facilitating precise adjustment according to the inner core body of different widths. Simultaneously, the fixing components between the positioning rod and the positioning sleeve ensure that the positioning sleeve is firmly fixed after adjustment, preventing positioning deviations caused by sliding, thereby improving the installation accuracy and stability of the inner core body.

[0016] Preferably, the outer peripheral wall of the positioning sleeve has a threaded hole communicating with the inner cavity, and the fixing member is a fixing screw threaded through the threaded hole, with the end of the fixing screw abutting against the outer peripheral wall of the positioning rod.

[0017] By adopting the above technical solution, the positioning sleeve can slide on the positioning rod. By rotating the fixing screw, its end is pressed against the outer peripheral wall of the positioning rod, thereby fixing the position of the positioning sleeve. This design allows the positioning sleeve to be flexibly adjusted according to actual needs, improving the positioning accuracy and installation efficiency of the inner core body. At the same time, the use of the fixing screw simplifies the operation process and reduces the time and labor intensity of manual adjustment.

[0018] Preferably, the outer peripheral wall of the positioning rod is provided with an external thread, and the inner peripheral wall of the positioning sleeve is provided with an internal thread that is threaded to the external thread.

[0019] By adopting the above technical solution, the outer peripheral wall of the positioning rod is provided with an external thread, and the inner peripheral wall of the positioning sleeve is provided with an internal thread that is threaded to the external thread, so that the position of the positioning sleeve on the positioning rod can be easily adjusted.

[0020] Preferably, one end of the differential shaft is rotatably inserted through one side of the slitting frame, and the other end of the slitting frame is slidably connected to a movable seat along the axial direction of the differential shaft. The movable seat is fixedly connected to a bearing seat through which the other end of the differential shaft passes, and the slitting frame is provided with a driving component for driving the movable seat to slide.

[0021] By adopting the above technical solution, when a new inner core body needs to be replaced, the driving component drives the movable seat to slide away from the end of the differential shaft, so that one end of the differential shaft is separated from the bearing seat, which facilitates the installation and removal of the inner core body. After the inner core body is fitted onto the differential shaft, the driving component drives the movable seat to slide and reset, so that the end of the differential shaft is re-inserted into the inner hole of the bearing seat.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. Under normal circumstances, the positioning rod is located on one side of the differential shaft. When a new inner core body needs to be replaced, the staff will put multiple new inner core bodies on the differential shaft and make a rough adjustment of the position of multiple inner core bodies by visual inspection. Then, the positioning rod will be moved so that the outer peripheral wall of the positioning rod abuts against the outer peripheral wall of the inner core body. At this time, the positioning sleeve is located on one side of the corresponding inner core body. Then, the inner core body will be moved so that the end face of the inner core body abuts against the end face of the corresponding positioning sleeve for positioning, which improves the installation efficiency of the inner core body. After adjusting the position of multiple inner core bodies, the positioning rod will be moved back to its original position. Finally, the end of the film strip will be glued to the outer wall of the new inner core body, and the winding operation will be carried out as the differential shaft rotates.

[0024] 2. When a new inner core body needs to be replaced, the piston rod of the first cylinder extends, pushing the swing arm to rotate around the hinge point, so that the positioning rod approaches the differential shaft and abuts against the outer peripheral wall of the inner core body, which facilitates the precise positioning of the inner core body; after the inner core body is installed, the piston rod of the first cylinder retracts, pulling the swing arm to reset, so that the positioning rod is away from the differential shaft, avoiding interference with subsequent winding operations.

[0025] 3. The positioning sleeve can slide on the positioning rod to facilitate precise adjustment according to the inner core body of different widths. At the same time, the fastener between the positioning rod and the positioning sleeve ensures that the positioning sleeve is firmly fixed after adjustment, preventing positioning deviation caused by sliding, thereby improving the installation accuracy and stability of the inner core body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a film core positioning structure for a slitting machine in Example 1;

[0027] Figure 2 This is a schematic diagram of the guide roller structure in Example 1;

[0028] Figure 3 This is a schematic diagram of the positioning rod in Example 1;

[0029] Figure 4 This is a schematic diagram of the positioning sleeve in Example 1;

[0030] Figure 5 This is a schematic diagram of the positioning rod in Example 2;

[0031] Figure 6 This is a schematic diagram of the positioning rod in Example 3.

[0032] In the diagram, 1. Cutting frame; 11. Rotary motor; 12. Movable seat; 13. Bearing seat; 14. Second cylinder; 15. Swing arm; 16. Limiting block; 17. First cylinder; 2. Guide roller; 21. Limiting wheel; 22. Limiting groove; 3. Slip shaft; 31. Inner core body; 4. Positioning rod; 41. Positioning sleeve; 42. Threaded hole; 43. Fixing screw; 44. Handle. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] Example 1:

[0035] This application discloses a film core positioning structure for a slitting machine, referring to... Figure 1 , Figure 2 The device includes a slitting frame 1, a guide roller 2 disposed on the slitting frame 1 to guide the slitting film strips, and a slip shaft 3 rotatably connected to the slitting frame 1 and located below the guide roller 2 to perform a winding operation on the film strips. The axial direction of the guide roller 2 is parallel to the axial direction of the slip shaft 3. In this embodiment, both ends of the guide roller 2 are rotatably connected to the slitting frame 1. The guide roller 2 is coaxially fixedly fitted with limiting wheels 21. Multiple limiting wheels 21 are provided and spaced apart along the axial direction of the guide roller 2. A limiting groove 22 is formed around the center of the outer peripheral wall of the limiting wheel 21, and the film strip abuts against the limiting groove 22.

[0036] One end of the slip shaft 3 is rotatably mounted through one side of the slitting frame 1. A rotary motor 11 is fixedly connected to one side of the slitting frame 1, and the output shaft of the rotary motor 11 is coaxially fixedly connected to one end of the slip shaft 3. The other end of the slitting frame 1 is slidably connected to a movable seat 12 along the axial direction of the slip shaft 3. A bearing seat 13 for the other end of the slip shaft 3 to pass through is fixedly connected to the movable seat 12. The slitting frame 1 is provided with a driving component for driving the movable seat 12 to slide. The driving component is a second cylinder 14. The cylinder body of the second cylinder 14 is fixedly connected to the slitting frame 1, and the piston rod of the second cylinder 14 is fixedly connected to the movable seat 12.

[0037] Reference Figure 3 The slip shaft 3 is fitted with an inner core body 31. Multiple inner core bodies 31 are provided and spaced apart along the axial direction of the slip shaft 3. The number of inner core bodies 31 corresponds to the number of limiting wheels 21. A positioning rod 4 located behind the slip shaft 3 is movably connected to the slitting frame 1. The axial direction of the positioning rod 4 is parallel to the axial direction of the slip shaft 3. Specifically, a swing arm 15 located behind the slip shaft 3 is hinged to the slitting frame 1. The free end of the swing arm 15 is fixedly connected to the positioning rod 4. The axial direction of the hinge point of the swing arm 15 is parallel to the axial direction of the slip shaft 3. The slitting frame 1 is provided with a limiting block 16 for the side wall of the free end of the swing arm 15 to abut against. The hinge point of the swing arm 15 is located between the slip shaft 3 and the limiting block 16.

[0038] Reference Figure 2 , Figure 4 The positioning rod 4 is provided with positioning sleeves 41. Multiple positioning sleeves 41 are provided and distributed at intervals along the axial direction of the positioning rod 4. The number of positioning sleeves 41 corresponds to the number of inner core bodies 31. The end face of the positioning sleeve 41 is abutted against the end face of the corresponding inner core body 31. The positioning sleeve 41 is slidably sleeved on the positioning rod 4. A fixing member is provided between the positioning rod 4 and the positioning sleeve 41 to fix the positioning sleeve 41. Specifically, the outer peripheral wall of the positioning sleeve 41 has a threaded hole 42 communicating with the inner cavity. The fixing member is a fixing screw 43 threaded through the threaded hole 42. The end of the fixing screw 43 abuts against the outer peripheral wall of the positioning rod 4. A handle 44 is fixedly connected to the end of the fixing screw 43.

[0039] The implementation principle of a film core positioning structure for a slitting machine according to an embodiment of this application is as follows: Under normal conditions, the rear sidewall of the free end of the swing arm 15 abuts against the limiting block 16, and the positioning rod 4 is located behind the differential shaft 3. When a new core body 31 needs to be replaced, the piston rod of the second cylinder 14 extends to drive the movable seat 12 to slide away from the end of the differential shaft 3, so that one end of the differential shaft 3 separates from the bearing seat 13. After the worker slides and disassembles the old core body 31, multiple new core bodies 31 are fitted onto the differential shaft 3. The piston rod of the second cylinder 14 resets to drive the movable seat 12 to slide and reset, so that the end of the differential shaft 3 is re-inserted into the inner hole of the bearing seat 13. After the operator visually adjusts the position of multiple inner core bodies 31, the positioning rod 4 and the swing arm 15 are then swung around the hinge point toward the slip shaft 3, so that the outer peripheral wall of the positioning rod 4 abuts against the outer peripheral wall of the inner core body 31. At this time, the positioning sleeve 41 is located on one side of the corresponding inner core body 31. Then, the inner core body 31 is moved so that the end face of the inner core body 31 abuts against the end face of the corresponding positioning sleeve 41 for positioning, thereby improving the installation efficiency of the inner core body 31. After adjusting the position of multiple inner core bodies 31, the positioning rod 4 is moved back to its original position. Finally, the end of the film strip is glued to the outer wall of the new inner core body 31, and the winding operation is carried out as the slip shaft 3 rotates.

[0040] Example 2:

[0041] The difference from Example 1 is that, referring to Figure 5The slitting frame 1 is equipped with a first cylinder 17, the cylinder body of which is hinged to the slitting frame 1, and the piston rod of which is hinged to the free end of the swing arm 15. When a new inner core body 31 needs to be replaced, the piston rod of the first cylinder 17 extends, pushing the swing arm 15 to rotate around the hinge point, so that the positioning rod 4 approaches the differential shaft 3 and abuts against the outer peripheral wall of the inner core body 31, facilitating the precise positioning of the inner core body 31. After the inner core body 31 is installed, the piston rod of the first cylinder 17 retracts, pulling the swing arm 15 back to its original position, so that the positioning rod 4 moves away from the differential shaft 3, avoiding interference with subsequent winding operations.

[0042] Example 3:

[0043] The difference from Example 1 is that, referring to Figure 6 The outer peripheral wall of the positioning rod 4 is provided with an external thread, and the inner peripheral wall of the positioning sleeve 41 is provided with an internal thread that is threaded to the external thread. The position of the positioning sleeve 41 on the positioning rod 4 can be easily adjusted by rotating the positioning sleeve 41.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A film core positioning structure for a slitting machine, characterized in that: The device includes a slitting frame (1), a guide roller (2) disposed on the slitting frame (1) to guide the slitting film strips, and a slip shaft (3) rotatably connected to the slitting frame (1) and located below the guide roller (2) to perform a winding operation on the film strips. The slip shaft (3) is fitted with an inner core body (31). Multiple inner core bodies (31) are provided and spaced apart along the axial direction of the slip shaft (3). The slitting frame (1) is movably connected to a positioning rod (4) located on one side of the slip shaft (3). The axial direction of the positioning rod (4) is parallel to the axial direction of the slip shaft (3). The positioning rod (4) is provided with a positioning sleeve (41). Multiple positioning sleeves (41) are provided and spaced apart along the axial direction of the positioning rod (4). The number of positioning sleeves (41) corresponds to the number of inner core bodies (31). The end face of the inner core body (31) abuts against the end face of the corresponding positioning sleeve (41).

2. The film core positioning structure for a slitting machine according to claim 1, characterized in that: The slitting frame (1) is hinged to a swing arm (15) located on one side of the slip shaft (3). The free end of the swing arm (15) is fixedly connected to the positioning rod (4). The hinge point of the swing arm (15) is parallel to the axis of the slip shaft (3).

3. The film core positioning structure for a slitting machine according to claim 2, characterized in that: The slitting frame (1) is provided with a limiting block (16) for the free end sidewall of the swing arm (15) to abut against. The hinge point of the swing arm (15) is located between the slip shaft (3) and the limiting block (16).

4. A film core positioning structure for a slitting machine according to claim 2, characterized in that: The slitting frame (1) is equipped with a first cylinder (17), the cylinder body of the first cylinder (17) is hinged to the slitting frame (1), and the piston rod of the first cylinder (17) is hinged to the free end of the swing arm (15).

5. A film core positioning structure for a slitting machine according to claim 1, characterized in that: The positioning sleeve (41) is slidably sleeved on the positioning rod (4), and a fixing member is provided between the positioning rod (4) and the positioning sleeve (41) to fix the positioning sleeve (41).

6. A film core positioning structure for a slitting machine according to claim 5, characterized in that: The outer peripheral wall of the positioning sleeve (41) is provided with a threaded hole (42) that communicates with the inner cavity. The fixing member is a fixing screw (43) that is threaded through the threaded hole (42). The end of the fixing screw (43) abuts against the outer peripheral wall of the positioning rod (4).

7. A film core positioning structure for a slitting machine according to claim 1, characterized in that: The outer peripheral wall of the positioning rod (4) is provided with an external thread, and the inner peripheral wall of the positioning sleeve (41) is provided with an internal thread that is threaded to the external thread.

8. A film core positioning structure for a slitting machine according to claim 1, characterized in that: One end of the slip shaft (3) is rotatably inserted through one side of the slitting frame (1), and the other end of the slitting frame (1) is slidably connected to a movable seat (12) along the axial direction of the slip shaft (3). The movable seat (12) is fixedly connected to a bearing seat (13) through which the other end of the slip shaft (3) passes. The slitting frame (1) is provided with a driving component for driving the movable seat (12) to slide.

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