Automatic force expanding and contracting aluminum foil uncoiler

Abstract

This invention relates to the field of uncoiling facilities, and more particularly to an automatic force-expanding aluminum foil uncoiling machine, comprising a frame, with multiple tension rollers arranged at the rear of the frame's interior. An auxiliary uncoiling roller is slidably mounted on one side of the upper end of the frame, with a top plate coaxially embedded on its outer surface. A support plate is slidably mounted on the end of the auxiliary uncoiling roller, and multiple curved seats are slidably mounted in a circular array on the support plate. A support roller extends from the center of one side of the support plate, and a main uncoiling roller is connected to the end of the support roller. The main uncoiling roller is connected to the frame. Multiple clamping seats are slidably mounted in a circular array on the outer surface of the support roller, with the ends of each clamping seat fixed to one end of a curved seat. This invention can firmly tension and fix the aluminum foil roll even when the inner core has an ellipticity deviation, avoiding localized loose clamping, effectively improving the uncoiling effect, and also facilitating use.

Description

Technical Field

[0001] This invention relates to the field of uncoiling facilities, and more particularly to an automatic force-expanding aluminum foil uncoiling machine. Background Technology

[0002] Automatic force-expanding aluminum foil uncoiling machines are key equipment in aluminum foil processing production lines. They are mainly used to smoothly and accurately unwind rolled aluminum foil, providing a continuous and stable supply of aluminum foil raw materials for subsequent processes such as slitting, rewinding, printing, and coating. The core advantage of automatic force-expanding aluminum foil uncoiling machines lies in their ability to quickly load and unload aluminum foil rolls through automatic force expansion and contraction.

[0003] In the automatic force-expanding aluminum foil uncoiling machine, multiple clamping seats move outward synchronously to tighten and fix the aluminum foil roll during the clamping process. However, in the actual processing, due to factors such as poor processing, there may be an ellipticity deviation in the inner core of the aluminum foil roll. When multiple clamping seats move outward synchronously to tighten the aluminum foil roll, local loose clamping will occur, causing the aluminum foil roll to jump radially during the uncoiling process, which in turn causes tension fluctuations and seriously affects the uncoiling effect. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an automatic force-expanding aluminum foil uncoiling machine.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an automatic force-expanding aluminum foil uncoiling machine, comprising a frame, with multiple tension rollers arranged at the rear of the frame, an auxiliary uncoiling roller slidably mounted on one side of the upper end of the frame, a top plate coaxially embedded on the outer surface of the auxiliary uncoiling roller, a bearing plate slidably mounted at the end of the auxiliary uncoiling roller, multiple bent seats slidably mounted in a circular array on the bearing plate, a support roller extending from the middle of one side of the bearing plate, a main uncoiling roller connected to the end of the support roller, the main uncoiling roller being connected to the frame, multiple clamping seats slidably mounted in a circular array on the outer surface of the support roller, the ends of the multiple clamping seats being fixed to one end of the multiple bent seats respectively, multiple ribs slidably mounted in a circular array through the top plate, a connector extending from one end of each rib, a clamping pusher rotatably mounted between the end of the connector and the other end of the bent seat, an adapting spring wound around the outside of each rib, the two ends of the adapting spring being fixed to the connector and the top plate respectively, and a positioning component installed at the lower edge of one side of the frame.

[0006] Preferably, a servo pusher cylinder is fixedly installed at the lower front end of the frame, and a pusher roller frame is fixedly installed at the output end of the servo pusher cylinder. The end of the pusher roller frame is rotatably connected to the auxiliary unwinding roller. Multiple guide grooves are arranged in an annular array on the outer surface of the support roller, and the clamping seat is slidably installed inside the guide grooves.

[0007] Preferably, the outer surface of the auxiliary unwinding roller has two symmetrically extending protrusions on the side of the top plate. A roller sleeve is slidably installed on the outer surface of the auxiliary unwinding roller and the outer surface of the protrusions. Roller seats are rotatably installed on the outer surface of the roller sleeve and the outer surface of the main unwinding roller. The lower end of the roller seat is fixed to the frame.

[0008] Preferably, a servo motor is fixedly mounted on the side of the frame, and a synchronous belt is connected between the output end of the servo motor and one end of the main unwinding roller via a pulley. A slot is provided at the other end of the main unwinding roller, and a claw extends from the end of the support roller, which is inserted into the slot.

[0009] Preferably, the side of the bearing plate has a ring array of multiple sliding holes, the bent seat passes through the inside of the sliding holes, the bent seat fits against the inner wall of the sliding holes, the front and rear ends of the bent seat each extend a first limiting ear, the first limiting ear fits against the other side of the bearing plate, the front and rear ends of the bent seat each extend a second limiting ear, the second limiting ear fits against one side of the bearing plate.

[0010] Preferably, a guide post extends from the middle of the other side of the bearing plate, and a limiting groove is hollowed out at the end of the secondary unwinding roller. The guide post passes through the end of the secondary unwinding roller and extends into the interior of the limiting groove.

[0011] Preferably, the guide post is slidably engaged with the auxiliary unwinding roller, and a limit cap extends coaxially from the end of the guide post. The limit cap is slidably installed inside the limit groove, and a rod cap extends from the other end of the rib.

[0012] Preferably, the positioning component includes a positioning plate fixedly installed on the lower edge of one side of the inner side of the frame. The positioning plate is on the same side as the main unwinding roller. Two positioning angles are symmetrically fixedly installed at the front end of the positioning plate. The distance between the two positioning angles is adapted to the distance between the corners on both sides of the material cart. Guide plates extend obliquely from the front end of each of the two positioning angles. The two guide plates are symmetrically arranged.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The moving auxiliary unwinding roller drives the top plate to move towards the carrier plate. At this time, multiple connectors move synchronously, driving multiple clamping pushers to move synchronously, allowing multiple bends to slide outward on the carrier plate, thereby driving multiple clamping seats to move outward synchronously to tighten them onto the inner core of the aluminum foil roll. As the top plate continues to move, the clamping seats already tightened onto the inner core of the aluminum foil roll remain stationary due to the restriction of the inner core. The corresponding adaptation springs of the already tightened clamping seats will deform, allowing the top plate to continue moving without obstruction. The continuing movement of the top plate will continue to push the clamping seats not yet tightened onto the inner core of the aluminum foil roll, causing them to move outward and tighten onto the inner core of the aluminum foil roll. This ensures that all clamping seats can fully contact the inner core of the aluminum foil roll for tightening, avoiding localized loose clamping. Even if the inner core of the aluminum foil roll has an ellipticity deviation, it can still be firmly tightened, avoiding radial runout of the roll and subsequent tension fluctuations, thereby improving the unwinding effect.

[0015] 2. When loading, push the trolley carrying the aluminum foil roll to the front of the frame. At this time, the positioning angles on the positioning plate are engaged at the two corners of the trolley to position the trolley and align the center of the aluminum foil roll with the support roller. Then, the servo push cylinder drives the auxiliary unwinding roller to move towards the position of the aluminum foil roll, allowing the support roller to be inserted into the core of the aluminum foil roll. At the same time, the tensioning and fixing operation of the aluminum foil roll is completed, thus completing the loading. The process can be carried out directly on the trolley to load the aluminum foil roll onto the unwinding roller, which is simple to operate and effectively facilitates use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the servo motor of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention.

[0018] Figure 3 This is a schematic diagram of the support roller of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention;

[0019] Figure 4 This is a schematic diagram of the bearing plate of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention;

[0020] Figure 5 This is a schematic diagram of the bending seat of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention;

[0021] Figure 6 This is a schematic diagram of the pusher roller frame of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention;

[0022] Figure 7 This is an internal view of the auxiliary unwinding roller of an automatic force-expanding aluminum foil unwinding machine according to the present invention;

[0023] Figure 8 This is a usage view of an automatic force-expanding and shrinking aluminum foil uncoiling machine according to the present invention.

[0024] In the diagram: 1. Frame; 2. Tensioning roller; 3. Servo motor; 4. Main unwinding roller; 5. Auxiliary unwinding roller; 6. Positioning plate; 7. Servo push cylinder; 8. Push roller frame; 9. Synchronous belt; 10. Roller seat; 11. Slot; 12. Claw; 13. Support roller; 14. Positioning angle; 15. Clamping seat; 16. Guide plate; 17. Sliding hole; 18. No. 1 limit ear; 19. Bend seat; 20. Clamping push frame; 21. Connector; 22. Rod cap; 23. Protruding rib; 24. Rib; 25. Top plate; 26. Adaptive spring; 27. Bearing plate; 28. Roller sleeve; 29. ​​Guide post; 30. Limit groove; 31. Limit cap; 32. Guide groove; 33. No. 2 limit ear; 34. Support; 35. Aluminum foil roll; 36. Material cart. Detailed Implementation

[0025] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] like Figures 1-8 The automatic force-expanding aluminum foil uncoiling machine shown includes a frame 1. Multiple tension rollers 2 are arranged at the rear of the frame 1. Since tensioning the uncoiled aluminum foil by passing it between multiple tension rollers 2 is existing technology and widely used, it is not described in detail here. An auxiliary uncoiling roller 5 is slidably mounted on one side of the upper end of the frame 1. A top plate 25 is coaxially embedded on the outer surface of the auxiliary uncoiling roller 5. A support plate 27 is slidably mounted on the end of the auxiliary uncoiling roller 5. Multiple bends 19 are slidably mounted in a circular array on the support plate 27, which supports the bends 19. A support roller 13 extends from the middle of one side of the support plate 27, supporting the aluminum foil roll 35. The end of the support roller 13 is connected to a main uncoiling roller 4. The main uncoiling roller 4 is connected to the machine... The frame 1 is connected to the main unwinding roller 4, which drives the support roller 13 to rotate. Multiple clamping seats 15 are slidably installed in a ring array on the outer surface of the support roller 13. The ends of the multiple clamping seats 15 are respectively fixed to one end of multiple bending seats 19. The clamping seats 15 are used to tighten and fix the aluminum foil roll 35. Multiple ribs 24 are slidably installed in a ring array on the top plate 25. One end of the rib 24 extends to a connector 21. The rib 24 is used to support the connector 21. A clamping pusher 20 is rotatably installed between the end of the connector 21 and the other end of the bending seat 19. An adaptation spring 26 is wound around the outside of the rib 24. The two ends of the adaptation spring 26 are respectively fixed to the connector 21 and the top plate 25. A positioning component is installed on the lower edge of one side of the inner side of the frame 1.

[0027] The moving auxiliary unwinding roller 5 drives the top plate 25 to move towards the support plate 27. At this time, multiple connectors 21 move synchronously, driving multiple clamping pushers 20 to move synchronously, causing multiple bends 19 to slide outward on the support plate 27, thereby driving multiple clamping seats 15 to move outward synchronously to tighten them on the inner core of the aluminum foil roll 35. At this time, the top plate 25 continues to move. During this process, the clamping seats 15 that have been tightened on the inner core of the aluminum foil roll 35 will remain stationary due to the restriction of the inner core, while the corresponding adaptation springs of the tightened clamping seats 15... 26 will deform, allowing the top plate 25 to continue moving without obstruction. At this time, the continuing to move top plate 25 will continue to push the clamping seat 15 that is not tightened on the inner core of the aluminum foil roll 35, causing it to move outward and tighten on the inner core of the aluminum foil roll 35. This ensures that all clamping seats 15 can fully contact the inner core of the aluminum foil roll 35 to tighten it, so as to avoid the phenomenon of local loose clamping. Even if there is an elliptic deviation in the inner core of the aluminum foil roll 35, it can still be firmly tightened, avoiding radial runout of the roll and thus causing tension fluctuation.

[0028] A servo push cylinder 7 is fixedly installed at the lower front end of the frame 1. The servo push cylinder 7 drives the secondary unwinding roller 5 to move. A push roller frame 8 is fixedly installed at the output end of the servo push cylinder 7. The push roller frame 8 serves as a connection. The end of the push roller frame 8 is rotatably connected to the secondary unwinding roller 5, which can ensure that the rotation of the secondary unwinding roller 5 is not obstructed. Multiple guide grooves 32 are formed in a ring array on the outer surface of the support roller 13. The clamping seat 15 is slidably installed inside the guide groove 32. The guide groove 32 serves to allow the clamping seat 15 to slide.

[0029] The outer surface of the auxiliary uncoiler roll 5 extends symmetrically to the side of the top plate 25 with two protruding ridges 23. A roller sleeve 28 is slidably installed on the outer surface of the auxiliary uncoiler roll 5 and the outer surface of the protruding ridges 23. The protruding ridges 23 enable the roller sleeve 28 and the auxiliary uncoiler roll 5 to rotate synchronously to reduce wear between them. Roller seats 10 are rotatably installed on the outer surface of the roller sleeve 28 and the outer surface of the main uncoiler roll 4. The lower end of the roller seat 10 is fixed to the frame 1. The roller seat 10 serves to support the roller sleeve 28 and the main uncoiler roll 4.

[0030] A servo motor 3 is fixedly mounted on the side of the frame 1. The servo motor 3 drives the main unwinding roller 4, the support roller 13, and the auxiliary unwinding roller 5 to rotate. The output end of the servo motor 3 is connected to one end of the main unwinding roller 4 by a pulley and a synchronous belt 9. The synchronous belt 9 connects the output end of the servo motor 3 and the main unwinding roller 4. The other end of the main unwinding roller 4 has a slot 11. The end of the support roller 13 has an insert claw 12 that inserts into the slot 11. The cooperation between the slot 11 and the insert claw 12 allows the support roller 13 and the main unwinding roller 4 to be connected together and rotate synchronously.

[0031] The side of the support plate 27 has a ring array of multiple sliding holes 17. The bent seat 19 passes through the inside of the sliding holes 17. The sliding holes 17 serve to allow the bent seat 19 to slide. The bent seat 19 fits against the inner wall of the sliding holes 17, which can prevent the bent seat 19 from wobbling back and forth. The front and rear ends of the bent seat 19 each extend a first limiting ear 18. The first limiting ear 18 fits against the other side of the support plate 27. The front and rear ends of the bent seat 19 each extend a second limiting ear 33. The second limiting ear 33 fits against one side of the support plate 27. The cooperation between the first limiting ear 18 and the second limiting ear 33 can prevent the bent seat 19 from shifting left and right.

[0032] A guide post 29 extends from the middle of the other side of the bearing plate 27. A limiting groove 30 is hollowed out at the end of the auxiliary unwinding roller 5. The guide post 29 plays a guiding role. The guide post 29 passes through the end of the auxiliary unwinding roller 5 and extends into the interior of the limiting groove 30.

[0033] The guide post 29 is slidably engaged with the auxiliary unwinding roller 5. A limit cap 31 extends coaxially from the end of the guide post 29. The limit cap 31 is slidably installed inside the limit groove 30. The engagement between the limit cap 31 and the limit groove 30 can prevent the bearing plate 27 and the auxiliary unwinding roller 5 from separating. The other end of the rib 24 extends with a rod cap 22. The rod cap 22 can prevent the rib 24 and the top plate 25 from separating.

[0034] The positioning component includes a positioning plate 6 fixedly installed on the lower edge of one side of the inner side of the frame 1. The positioning plate 6 is on the same side as the main unwinding roller 4. Two positioning corners 14 are symmetrically fixedly installed at the front end of the positioning plate 6. The positioning corners 14 engage at the corners on both sides of the material cart 36, which can position the material cart 36 and align the center of the aluminum foil roll 35 with the support roller 13. The positioning plate 6 serves to support the positioning corners 14. The distance between the two positioning corners 14 is adapted to the distance between the corners on both sides of the material cart 36, which can prevent the material cart 36 from shaking after engagement. The front ends of the two positioning corners 14 are inclined with guide plates 16, which serve to guide the movement. The two guide plates 16 are symmetrically arranged.

[0035] In use, the trolley 36 carrying the aluminum foil roll 35 is pushed to the front of the frame 1. At this time, the positioning angle 14 on the positioning plate 6 is engaged at the two corners of the trolley 36 to position the trolley 36, aligning the center of the aluminum foil roll 35 with the support roller 13. Then, the servo push cylinder 7 drives the auxiliary unwinding roller 5 to move towards the position of the aluminum foil roll 35, allowing the support roller 13 to be inserted into the core of the aluminum foil roll 35. At this time, the claws 12 on the support roller 13 are engaged in the slots 11 on the main unwinding roller 4. Meanwhile, the support roller 13 and the carrier plate 27 remain stationary due to the constraint of the main unwinding roller 4. The push cylinder 7 drives the auxiliary unwinding roller 5 to continue moving, so that the moving auxiliary unwinding roller 5 drives the top plate 25 to move towards the support plate 27. At this time, multiple connectors 21 move synchronously, so that multiple clamping pushers 20 move synchronously, causing multiple bends 19 to slide outward on the support plate 27, thereby driving multiple clamping seats 15 to move outward synchronously to tighten on the inner core of the aluminum foil roll 35. At this time, the top plate 25 continues to move. During this process, the clamping seats 15 that have been tightened on the inner core of the aluminum foil roll 35 will remain stationary due to the restriction of the inner core, while the adapting springs 26 corresponding to the tightened clamping seats 15 will... The deformation allows the top plate 25 to continue moving without obstruction. The continuing movement of the top plate 25 pushes the clamping seats 15, which are not yet fully tightened on the inner core of the aluminum foil roll 35, outwards, thus tightening them onto the inner core. This ensures that all clamping seats 15 can fully contact and tighten the inner core of the aluminum foil roll 35, preventing localized loose clamping even if the inner core of the aluminum foil roll 35 has an elliptic deviation. After tightening, the end of the auxiliary unwinding roller 5 rests against the bearing plate 27, and the limiting cap 31 rests against the end face of the limiting groove 30, allowing the support... The claws 12 on the winding roller 13 and the slots 11 on the main unwinding roller 4 are firmly engaged. Then, the support 34 on the material cart 36 can be lowered and removed from the lower part of the aluminum foil roll 35, and the material cart 36 can be moved away. Then, the servo motor 3 works to drive the main unwinding roller 4, the support roller 13 and the auxiliary unwinding roller 5 to rotate synchronously via the synchronous belt 9 to unwind. At the same time, the tension roller 2 tensions the unwound aluminum foil. After unwinding is completed, the auxiliary unwinding roller 5 moves in the opposite direction to reset, so that the support roller 13 and the main unwinding roller 4 are separated. Then, the inner core on the support roller 13 can be removed. This cycle is repeated to unwind the next roll of aluminum foil 35.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic tension-shrink aluminum foil uncoiling machine, comprising a frame (1), wherein a plurality of tension rollers (2) are arranged at the rear of the interior of the frame (1), characterized in that: A secondary unwinding roller (5) is slidably mounted on one side of the upper end of the frame (1). A top plate (25) is coaxially embedded on the outer surface of the secondary unwinding roller (5). A bearing plate (27) is slidably mounted on the end of the secondary unwinding roller (5). Multiple bent seats (19) are slidably mounted in a ring array on the bearing plate (27). A support roller (13) extends from the middle of one side of the bearing plate (27). A main unwinding roller (4) is connected to the end of the support roller (13). The main unwinding roller (4) is connected to the frame (1). Multiple clamping seats (15) are slidably mounted in a ring array on the outer surface of the support roller (13). The ends of the multiple clamping seats (15) are respectively fixed to one end of the multiple bent seats (19). Multiple ribs (24) are slidably installed in a ring array on the top plate (25). One end of the rib (24) extends to a connector (21). A clamping pusher (20) is rotatably installed between the end of the connector (21) and the other end of the bent seat (19). An adaptation spring (26) is wound around the outside of the rib (24). The two ends of the adaptation spring (26) are respectively fixed to the connector (21) and the top plate (25). A positioning element is installed at the lower edge of one side of the inner side of the frame (1). A guide post (29) extends from the middle of the other side of the bearing plate (27). A limiting groove (30) is hollowed out at the end of the auxiliary unwinding roller (5). The guide post (29) passes through the end of the auxiliary unwinding roller (5) and extends into the interior of the limiting groove (30). The guide post (29) is slidably engaged with the auxiliary unwinding roller (5). A limit cap (31) extends coaxially from the end of the guide post (29). The limit cap (31) is slidably installed inside the limit groove (30). A rod cap (22) extends from the other end of the rib (24). The positioning component includes a positioning plate (6) fixedly installed on the lower edge of one side of the frame (1). The positioning plate (6) is on the same side as the main unwinding roller (4). Two positioning angles (14) are symmetrically fixedly installed at the front end of the positioning plate (6). The distance between the two positioning angles (14) is adapted to the distance between the corners on both sides of the material cart. The front ends of the two positioning angles (14) are inclined with guide plates (16). The two guide plates (16) are symmetrically arranged.

2. The automatic force-expanding and shrinking aluminum foil uncoiling machine according to claim 1, characterized in that: A servo push cylinder (7) is fixedly installed at the lower front end of the frame (1). A push roller frame (8) is fixedly installed at the output end of the servo push cylinder (7). The end of the push roller frame (8) is rotatably connected to the auxiliary unwinding roller (5). Multiple guide grooves (32) are arranged in an annular array on the outer surface of the support roller (13). The clamping seat (15) is slidably installed inside the guide groove (32).

3. The automatic force-expanding and shrinking aluminum foil uncoiling machine according to claim 1, characterized in that: The outer surface of the auxiliary unwinding roller (5) extends symmetrically to the side of the top plate (25) with two protruding ridges (23). A roller sleeve (28) is slidably installed on the outer surface of the auxiliary unwinding roller (5) and the outer surface of the protruding ridges (23). A roller seat (10) is rotatably installed on the outer surface of the roller sleeve (28) and the outer surface of the main unwinding roller (4). The lower end of the roller seat (10) is fixed to the frame (1).

4. The automatic force-expanding and shrinking aluminum foil uncoiling machine according to claim 1, characterized in that: A servo motor (3) is fixedly installed on the side of the frame (1). The output end of the servo motor (3) is connected to one end of the main unwinding roller (4) by a synchronous belt (9) through a pulley. The other end of the main unwinding roller (4) is provided with a slot (11). The end of the support roller (13) extends with a claw (12), which is inserted into the slot (11).

5. An automatic force-expanding and shrinking aluminum foil uncoiling machine according to claim 1, characterized in that: The side of the bearing plate (27) has a ring array of multiple sliding holes (17) through which the bent seat (19) passes through the inside of the sliding hole (17) and fits against the inner wall of the sliding hole (17). The front and rear ends of the bent seat (19) each extend with a first limiting ear (18), which fits against the other side of the bearing plate (27). The front and rear ends of the bent seat (19) each extend with a second limiting ear (33), which fits against one side of the bearing plate (27).

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