Self-balancing device for unwinding and passing paper roll of aluminum foil paper slitting machine

Abstract

This invention discloses a self-balancing device for the unwinding roller of an aluminum foil slitting machine, relating to the technical field of aluminum foil processing equipment. It includes a frame, a guide frame, a segmented unwinding mechanism, and a self-balancing mechanism. This invention enables intermittent segmented unwinding of slit aluminum foil, allowing subsequent rewinding to squeeze out air that may remain within narrow sections of the paper, preventing accumulated misalignment and ensuring the flatness of the aluminum foil feed. Furthermore, if a synchronously unwound aluminum foil strip breaks at any point during the unwinding stage, the spring's own elasticity causes the tilting roller to flip towards the rewinding roller via a swing arm, until it adheres to the partially rewound aluminum foil roll on the corresponding rewinding roller. With the continued rotation of the rewinding roller, combined with the rotation of the tilting roller on the swing arm, the surface of aluminum foil rolls of any thickness is smoothed through self-balancing, thus repairing wrinkles on both sides of the incompletely rewound aluminum foil caused by the breakage.

Description

Technical Field

[0001] This invention relates to the technical field of aluminum foil processing equipment, specifically to a self-balancing device for the unwinding and paper-passing rollers of an aluminum foil slitting machine. Background Technology

[0002] Aluminum foil is a type of paper made by bonding aluminum foil backing paper and aluminum foil together. It is soft and easily deformed, just like paper, and does not spring back after deformation. It can be fixed in shape, ensuring light blocking, preventing it from falling off, being opaque, pollution-free, and inexpensive. Aluminum foil has a wide range of uses, such as: airline food packaging, ordinary meat packaging, cigarette packaging, etc. During the processing of aluminum foil, it often needs to be cut into narrower aluminum foil rolls and then wound up. Current technology usually uses an independent motor to drive the unwinding section, which is then guided and cut by the middle guide roller, and finally completed with an independent motor in the end winding section.

[0003] However, after long-term use, the existing technology has been found to have certain drawbacks, such as: First, after aluminum foil is cut at high speed, it changes from two sides to multiple sides. During the winding stage, the narrower paper is more likely to have air trapped at its side ends. Once air is trapped, it will accumulate and cause misalignment as winding continues. This misalignment is difficult to eliminate after winding is completed. Second, after cutting, the aluminum foil strips are in a state of multiple synchronous winding. If any of the cut aluminum foil strips slips at the paper feed roller, the tension on the other cut aluminum foil strips will suddenly increase, which may cause the aluminum foil strips to break. After breaking, wrinkles will appear on both sides of the unwound aluminum foil. Summary of the Invention

[0004] The purpose of this invention is to provide a self-balancing device for the unwinding and paper passing rollers of an aluminum foil slitting machine, so as to solve the above-mentioned defects caused by the prior art.

[0005] A self-balancing device for the unwinding and paper feeding rollers of an aluminum foil slitting machine includes a frame, a guide frame, a segmented unwinding mechanism, and a self-balancing mechanism. Symmetrically arranged open slide grooves are fixed on the frame. The guide frame is located in the middle of the frame. The segmented unwinding mechanism is installed on the frame and the guide frame and is used to intermittently unwind the slitting aluminum foil. The self-balancing mechanism is installed on the frame and is used to balance the feeding flatness of the segmented unwinding aluminum foil on the paper feeding rollers.

[0006] Preferably, the segmented unwinding mechanism includes a drive motor, a cylinder, and clamping rollers. The drive motor is mounted on a frame, and a drive wheel is mounted on the output end of the drive motor. A mounting base with a through-hole sliding groove is fixedly connected to the frame. A driven wheel and a bevel gear are mounted on the mounting base. The driven wheel is connected to the drive wheel via a timing belt. A bevel gear is coaxially fixedly connected to the driven wheel and meshes with the bevel gear. The lower end of the bevel gear is coaxially fixedly connected to the driven wheel. Two asymmetrical notched gears are also mounted on the mounting base. The lower ends of the two notched gears are connected to the driven wheel via a timing belt. A sliding frame is slidably mounted on the guide frame. A double-sided rack is mounted in the middle of the sliding frame. The two notched gears mesh with the two sides of the double-sided rack. The cylinder is a bidirectional cylinder and is symmetrically mounted on both sides of the sliding frame in the direction of travel. The clamping rollers are symmetrically mounted on the two output ends of the cylinder.

[0007] Preferably, the self-balancing mechanism includes an X-shaped paper feed roller, a ratchet, and a flip roller. Two parallel rotating shafts are fixedly installed inside the frame. Multiple X-shaped paper feed rollers are rotatably mounted on rotating shaft one. One end of each X-shaped paper feed roller is connected to a drive wheel via a synchronous belt three. A take-up roller can also be detachably mounted on the frame. One end of the take-up roller is connected to one end of the X-shaped paper feed roller via a synchronous belt four. The ratchet is coaxially fixed to the other end of the X-shaped paper feed roller. A symmetrically inverted U-shaped frame is fixedly connected between rotating shaft one and rotating shaft two. Symmetrically arranged pawls are rotatably mounted on the U-shaped frame, engaging with the ratchet. A T-shaped vibrating bridge penetrating the U-shaped frame is mounted on the side end of the pawl. The flip roller is rotatably mounted at the end of a swing arm, which is mounted on rotating shaft two. One end of the swing arm is connected to the U-shaped frame via a spring, and the middle section of the swing arm is movably connected to the T-shaped vibrating bridge.

[0008] Preferably, the segmented unwound aluminum foil passes sequentially through the front clamping roller, the flipping roller, the X-shaped paper feed roller, the take-up roller, and the rear clamping roller.

[0009] Preferably, the two notched gears alternately mesh with the double-sided gears.

[0010] Preferably, the cylinders on both sides of the sliding frame in the sliding direction have the same opening and closing state.

[0011] Preferably, the U-shaped frame is positioned outside the swing path at the end of the swing arm.

[0012] Preferably, the end faces of the flipping roller and the take-up roller are matched.

[0013] The advantages of this invention are:

[0014] By setting a segmented unwinding mechanism and a self-balancing mechanism on the frame, the output end of the drive motor drives the drive wheel to rotate, which drives the two notched gears on both sides of the double rack to rotate synchronously, thereby driving the two clamping rollers on the sliding frame to move back and forth. With the extension and reset of the output ends of the cylinders on both sides of the sliding frame, the slit aluminum foil paper is intermittently unwound and wound. In this segmented unwinding and winding state, the aluminum foil paper strip after passing through the X-shaped paper roller will present a mirror upward state from the middle to both sides, so that the subsequent winding can squeeze out the air that may remain in the narrow paper, avoid the accumulation of mis-layers, and ensure the flatness of the aluminum foil paper feeding.

[0015] When a synchronously unwound aluminum foil strip breaks at any point during the unwinding stage, the spring's own elastic force causes the tilting roller to flip towards the take-up roller via the swing arm, until it adheres to the partially wound aluminum foil roll on the corresponding take-up roller. As the take-up roller continues to rotate, in conjunction with the rotation of the tilting roller on the swing arm, the surface of the aluminum foil roll of any thickness is smoothed in a self-balancing manner to repair the wrinkles on both sides of the unwound aluminum foil caused by the breakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the self-balancing mechanism in this invention.

[0018] Figure 3 This is a partial structural schematic diagram of the self-balancing mechanism in this invention.

[0019] Figure 4 This is a schematic diagram of the assembly of the segmented unwinding mechanism and the guide frame in this invention.

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0021] Figure 6 for Figure 4 Enlarged view of the structure at point B in the middle.

[0022] Among them, 1-frame, 2-guide frame, 3-segmented unwinding mechanism, 4-self-balancing mechanism, 5-opening chute, 301-drive motor, 302-cylinder, 303-clamping roller, 304-drive wheel, 305-mounting base, 306-driven wheel one, 307-bevel gear one, 308-synchronous belt one, 309-bevel gear two, 310-driven wheel two, 311-notched gear, 312-synchronous belt two, 313-sliding frame, 314-double-sided rack, 401-X-shaped paper feed roller, 402-ratchet, 403-turning roller, 404-shaft one, 405-shaft two, 406-synchronous belt three, 407-rewinding roller, 408-synchronous belt four, 409-U-shaped frame, 410-pawl, 411-T-type vibrating bridge, 412-swing arm, 413-spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 6 As shown, a self-balancing device for the unwinding and paper feeding rollers of an aluminum foil slitting machine includes a frame 1, a guide frame 2, a segmented unwinding mechanism 3, and a self-balancing mechanism 4. The frame 1 is fixed with symmetrically arranged open slide grooves 5. The guide frame 2 is located in the middle of the frame 1. The segmented unwinding mechanism 3 is installed on the frame 1 and the guide frame 2 and is used to intermittently unwind the slitting aluminum foil. The self-balancing mechanism 4 is installed on the frame 1 and is used to balance the feeding flatness of the segmented unwinding aluminum foil on the paper feeding rollers.

[0025] In this embodiment, the segmented unwinding mechanism 3 includes a drive motor 301, a cylinder 302, and a clamping roller 303. The drive motor 301 is mounted on the frame 1, and a drive wheel 304 is mounted on the output end of the drive motor 301. A mounting base 305 with a through-hole sliding groove 5 is fixedly connected to the frame 1. A driven wheel 306 and a bevel gear 307 are mounted on the mounting base 305. The driven wheel 306 is connected to the drive wheel 304 via a timing belt 308. A bevel gear 309 is coaxially fixedly connected to the driven wheel 306. The bevel gear 309 meshes with the bevel gear 307. A driven wheel 310 is coaxially fixedly connected to the lower end of a 307. Two asymmetrical notched gears 311 are also installed on the mounting base 305. The lower ends of the two notched gears 311 are connected to the driven wheel 310 via a synchronous belt 312. A sliding frame 313 is slidably arranged on the guide frame 2. A double-sided rack 314 is installed in the middle of the sliding frame 313. The two notched gears 311 are respectively meshed on both sides of the double-sided rack. The cylinder 302 is a bidirectional cylinder 302 and is symmetrically installed on both sides of the sliding frame 313 in the direction of travel. The clamping rollers 303 are symmetrically installed on the two output ends of the cylinder 302.

[0026] It is worth mentioning that the drive motor 301 is a servo motor.

[0027] In this embodiment, the self-balancing mechanism 4 includes an X-shaped paper feed roller 401, a ratchet 402, and a flipping roller 403. A first rotating shaft 404 and a second rotating shaft 405 are fixedly installed in parallel within the frame 1. Multiple X-shaped paper feed rollers 401 are rotatably mounted on the first rotating shaft 404. One end of each X-shaped paper feed roller 401 is connected to a drive wheel 304 via a third synchronous belt 406. A take-up roller 407 can also be detachably mounted on the frame 1. One end of the take-up roller 407 is connected to one end of the X-shaped paper feed roller 401 via a fourth synchronous belt 408. The ratchet 402 is coaxially fixed to the X-shaped paper feed roller. At the other end of roller 401, a symmetrically inverted U-shaped frame 409 is fixedly connected between rotating shaft one 404 and rotating shaft two 405. A symmetrically arranged pawl 410 is rotatably mounted on the U-shaped frame 409. The pawl 410 meshes with a ratchet 402. A T-shaped vibration bridge 411 that passes through the U-shaped frame 409 is installed on the side end of the pawl 410. The flipping roller 403 is rotatably mounted at the end of the swing arm 412. The swing arm 412 is mounted on rotating shaft two 405. One end of the swing arm 412 is connected to the U-shaped frame 409 through a spring 413. The middle section of the swing arm 412 is movably connected to the T-shaped vibration bridge 411.

[0028] It should be noted that the segmented unwound aluminum foil passes sequentially through the front clamping roller 303, the flipping roller 403, the X-shaped paper feed roller 401, the take-up roller 407, and the rear clamping roller 303, and the flipping roller 403 is rotatably mounted on the swing arm 412.

[0029] In this embodiment, the two notched gears 311 alternately mesh with the double-sided gear.

[0030] In this embodiment, the cylinders 302 on the sliding frame 313 located on the front and rear sides in the sliding direction have the same opening and closing state.

[0031] In addition, the U-shaped frame 409 is placed outside the swing path of the end of the swing arm 412, that is, there is no rigid contact between the end of the swing arm 412 and the U-shaped frame 409, and the end face of the flipping roller 403 cooperates with the end face of the winding roller 407.

[0032] Working process and principle: In the process of using this invention, the slit aluminum foil is placed into two separate clamping rollers 303, and then sequentially passes through the flipping roller 403, the X-shaped paper feed roller 401 and the winding roller 407 for winding preparation. Then, the drive motor 301 is started so that its output end drives the drive wheel 304 to rotate. Through the synchronous belt 308, driven wheel 306, bevel gear 309, bevel gear 307, driven wheel 310 and synchronous belt 312, the two notched gears 311 on both sides of the double rack 314 are driven to rotate synchronously.

[0033] As the notched gear 311 on one side slides the sliding frame 313 towards the unwinding direction of the slit aluminum foil via the double rack 314, the two clamping rollers 303 on the sliding frame 313 are in a separated state until the notched gear 311 on that side disengages from the double rack 314, and the notched gear 311 on the other side engages with the double rack 314. At this time, the cylinders 302 on both sides of the sliding frame 313 are activated simultaneously, so that their output ends drive the clamping rollers 303 to clamp the slit aluminum foil. Driven by the notched gear 311 in the engaged state, the multiple slit aluminum foils clamped on the sliding frame 313 are unwound synchronously. Through the separation and clamping of the two clamping rollers 303, the intermittent segmented unwinding and rewinding of the slit aluminum foil is realized.

[0034] During the winding process, the aluminum foil strip after passing through the X-shaped paper guide roller 401 presents a mirror-like upward state from the middle to both sides due to its unique structure. When the slit aluminum foil in this state is wound by the winding roller 407, the concave part in the middle contacts the roller surface of the winding roller 407 first, and then spreads to both sides of the paper as the winding continues, thereby squeezing out the air that may remain in the narrower paper and avoiding the accumulation of misaligned layers.

[0035] When a synchronously unwound aluminum foil strip breaks at any point during the unwinding stage, the corresponding flip roller 403 will lose its guiding tension effect. Under the elastic force of the spring 413, the flip roller 403 will be driven by the swing arm 412 to flip towards the take-up roller 407 until it adheres to the aluminum foil roll partially wound by the take-up roller 407. As the take-up roller 407 continues to rotate, in conjunction with the rotation of the flip roller 403 on the swing arm 412, the surface of the aluminum foil roll of any thickness is flattened in a self-balancing manner.

[0036] Based on the above, the present invention sets a segmented unwinding mechanism 3 and a self-balancing mechanism 4 on the frame 1. The output end of the drive motor 301 drives the drive wheel 304 to rotate, which drives the two notched gears 311 on both sides of the double rack 314 to rotate synchronously, thereby driving the two clamping rollers 303 on the sliding frame 313 to move back and forth. With the extension and reset of the output ends of the cylinders 302 on both sides of the sliding frame 313, the slit aluminum foil paper is intermittently unwound and wound. In this segmented unwinding and winding state, the aluminum foil paper strip after passing through the X-shaped paper roller 401 will present a mirror upward state from the middle to both sides, so that the subsequent winding can squeeze out the air that may remain in the narrow paper, avoid the accumulation of misalignment, and ensure the flatness of the aluminum foil paper feeding.

[0037] When the aluminum foil strip being unwound breaks at any point during the unwinding stage, the spring 413, under its own elastic force, drives the flipping roller 403 to flip towards the take-up roller 407 via the swing arm 412, until it adheres to the aluminum foil roll partially wound by the take-up roller 407. As the take-up roller 407 continues to rotate, in conjunction with the rotation of the flipping roller 403 on the swing arm 412, the surface of the aluminum foil roll of any thickness is smoothed in a self-balancing manner to repair the wrinkles on both sides of the unwound aluminum foil caused by the breakage.

[0038] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A self-balancing device for the unwinding and paper-passing rollers of an aluminum foil slitting machine, characterized in that, The device includes a frame (1), a guide frame (2), a segmented unwinding mechanism (3), and a self-balancing mechanism (4). The frame (1) is fixed with symmetrically arranged open slides (5). The guide frame (2) is located in the middle of the frame (1). The segmented unwinding mechanism (3) is installed on the frame (1) and the guide frame (2) and is used to intermittently unwind the slit aluminum foil. The self-balancing mechanism (4) is installed on the frame (1) and is used to balance the feeding flatness of the segmented unwinding aluminum foil on the paper feed roller. The segmented unwinding mechanism (3) includes a drive motor (301), a cylinder (302), and a clamping roller (303). The drive motor (301) is mounted on the frame (1), and a drive wheel (304) is mounted on the output end of the drive motor (301). A mounting base (305) with a through-hole slide groove (5) is fixedly connected to the frame (1). A driven wheel (306) and a bevel gear (307) are mounted on the mounting base (305). The driven wheel (306) is connected to the drive wheel (304) via a timing belt (308). A bevel gear (309) is coaxially fixedly connected to the driven wheel (306). The bevel gear (309) meshes with the bevel gear (307). The lower end of 307 is coaxially fixedly connected to the driven wheel 2 (310). The mounting base (305) is also equipped with two asymmetrical notched gears (311). The lower ends of the two notched gears (311) are connected to the driven wheel 2 (310) through the synchronous belt 2 (312). The guide frame (2) is slidably provided with a sliding frame (313). The middle part of the sliding frame (313) is equipped with a double-sided rack (314). The two notched gears (311) are respectively meshed on both sides of the double-sided rack (314). The cylinder (302) is a double-sided cylinder (302) and is symmetrically installed on both sides of the sliding frame (313) in the direction of travel. The clamping roller (303) is symmetrically installed on the two output ends of the cylinder (302).

2. The self-balancing device for unwinding and passing paper roll of an aluminum foil paper slitting machine according to claim 1, characterized in that: The self-balancing mechanism (4) includes an X-shaped paper feed roller (401), a ratchet (402), and a flip roller (403). A first rotating shaft (404) and a second rotating shaft (405) are fixedly installed in parallel within the frame (1). Multiple X-shaped paper feed rollers (401) are rotatably mounted on the first rotating shaft (404). One end of each X-shaped paper feed roller (401) is connected to a drive wheel (304) via a third synchronous belt (406). A take-up roller (407) can also be detachably mounted on the frame (1). One end of the take-up roller (407) is connected to one end of each X-shaped paper feed roller (401) via a fourth synchronous belt (408). The ratchet (402) is coaxially fixed to the X-shaped paper feed roller (401). At the other end of the shaft, a symmetrically inverted U-shaped frame (409) is fixedly connected between the first rotating shaft (404) and the second rotating shaft (405). A symmetrically arranged pawl (410) is rotatably mounted on the U-shaped frame (409). The pawl (410) meshes with the ratchet (402). A T-shaped vibration bridge (411) that passes through the U-shaped frame (409) is installed on the side end of the pawl (410). The flipping roller (403) is rotatably mounted on the end of the swing arm (412). The swing arm (412) is mounted on the second rotating shaft (405). One end of the swing arm (412) is connected to the U-shaped frame (409) through a spring (413). The middle section of the swing arm (412) is movably connected to the T-shaped vibration bridge (411).

3. The self-balancing device for the unwinding and paper passing roller of the aluminum foil paper slitting machine according to claim 2, characterized in that: The segmented unwound aluminum foil paper passes sequentially through the front clamping roller (303), the flipping roller (403), the X-shaped paper feed roller (401), the take-up roller (407), and the rear clamping roller (303).

4. The self-balancing device for the unwinding and paper passing roller of the aluminum foil paper slitting machine according to claim 2, characterized in that: The two notched gears (311) alternately mesh on the double rack (314).

5. The self-balancing device for the unwinding and paper-passing rollers of an aluminum foil slitting machine according to claim 2, characterized in that: The cylinders (302) on the sliding frame (313) located on the front and rear sides of the sliding direction have the same opening and closing state.

6. The self-balancing device for the unwinding and paper-passing rollers of an aluminum foil slitting machine according to claim 3, characterized in that: The U-shaped frame (409) is positioned outside the swing path at the end of the swing arm (412).

7. The self-balancing device for unwinding and passing paper roll of an aluminum foil paper slitting machine according to claim 3, characterized in that: The end faces of the flipping roller (403) and the take-up roller (407) are matched.

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