Uncoiler with protective structure

Abstract

The utility model provides an uncoiler with a protective structure, which comprises an uncoiling mechanism, a first support arm is mounted on one side of the top of a U-shaped support and is positioned right above a steel coil, a telescopic mechanism is arranged at the top of the first support arm, a strip-shaped seat is mounted at the bottom of the telescopic mechanism, a U-shaped mounting frame with a downward opening is arranged below the strip-shaped seat, and the U-shaped mounting frame is arranged below the U-shaped mounting frame. A pressing wheel is rotatably mounted at the bottom in the U-shaped mounting frame, guide columns are vertically arranged on the two sides of the top of the U-shaped mounting frame respectively, the tops of the guide columns are slidably arranged in the two ends of the strip-shaped base respectively, a limiting base is arranged on the top of each guide column, and a pressure monitor is mounted below the strip-shaped base. When the steel coil pressing device is used, the telescopic mechanism is controlled to fall to drive the pressing wheel to be slowly arranged on the top of a steel coil to press the free end of the steel coil, and the pressure value of the pressing wheel and the steel coil can be kept constant, so that the free end of the steel coil can be prevented from being loosened suddenly, and danger is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of uncoilers, in particular to an uncoiler with a protective structure. Background Art

[0002] The uncoiler is a specialized piece of equipment for sheet metal leveling lines, used to place coils to be processed and feed them to the next process. Depending on the processing requirements, it can be combined with an uncoiler, leveling, shearing, and other sheet metal processing lines. Once the coil is placed on the uncoiler, a pneumatic pressure arm is installed on top to prevent the free end of the coil from bouncing. However, this pressure cannot always be maintained constant.

[0003] As the coil is gradually released, its thickness decreases, causing the pneumatic pressing arm's pressure point on the coil to change. Securing the free end of the coil is crucial because the coil experiences significant stress during release. If the free end isn't effectively secured, the coil cannot be rewound after it's released. To address this, we propose a decoiler with a protective structure. Utility Model Content

[0004] The utility model provides an uncoiler with a protective structure, which has a telescopic mechanism that drops down and drives the pressure wheel to slowly be placed on the top of the steel coil to press the free end of the steel coil, and the pressure value between the pressure wheel and the steel coil can be kept constant, thereby solving the problems raised in the above-mentioned background technology.

[0005] The technical solution of the present utility model is implemented as follows: a uncoiler with a protective structure is designed, including an uncoiler mechanism. The present application also includes a U-shaped bracket installed on the uncoiler mechanism and with an opening facing downwards, a first support arm is installed on one side of the top of the U-shaped bracket, the first support arm is located directly above the steel coil, a telescopic mechanism is provided on the top of the first support arm, a strip seat is installed at the bottom of the telescopic mechanism, a U-shaped mounting frame with an opening facing downwards is provided below the strip seat, a pressure wheel is rotatably installed at the bottom of the U-shaped mounting frame, guide columns are vertically provided on both sides of the top of the U-shaped mounting frame, the tops of the guide columns are respectively slidably arranged in the two ends of the strip seat, and a limit seat is provided on the top of each guide column, a pressure monitor is installed below the strip seat, and in the initial state, the pressure monitor is not in contact with the top of the U-shaped mounting frame, and the pressure monitor and the telescopic mechanism are respectively connected to the control unit.

[0006] Preferably, a support spring is sleeved on the guide column located below the strip seat, and two ends of the support spring are in elastic contact with the strip seat and the top of the U-shaped mounting bracket respectively.

[0007] Preferably, the unwinding mechanism includes a base and a hydraulic expansion and contraction reel, a support frame is installed on the top of the base, the bottom two ends of the U-shaped mounting frame are installed on the top of the support frame, the hydraulic expansion and contraction reel is located directly below the pressure wheel, the hydraulic expansion and contraction reel is located between the U-shaped mounting frames, and the end of the hydraulic expansion and contraction reel away from the pressure wheel is rotatably installed on the top of the support frame, and a driving mechanism for driving the hydraulic expansion and contraction reel to rotate is also provided on the base.

[0008] Preferably, the oil pressure expansion and contraction reel includes a support sleeve, at least two supports are installed on the top of the support frame along the direction of the support sleeve, the support sleeve is rotatably installed in the top of the support, a hydraulic cylinder is coaxially provided at the end of the support sleeve away from the pressure wheel, the telescopic shaft of the hydraulic cylinder is movably placed in the support sleeve, the support sleeve and the hydraulic cylinder are connected by a flange, the support sleeve extends to the bottom of the pressure wheel, and the telescopic shaft extends to the outside of the support sleeve, an annular seat is coaxially installed at the end of the telescopic shaft close to the pressure wheel, and there is a certain distance between the annular seat and the end of the support sleeve, and at least three arc-shaped top plates are symmetrically provided on the outside of the support sleeve, and the arc-shaped top plate is rotatably connected to at least two second support arms on the side close to the support sleeve, the second support arms are inclined and parallel to each other, and the end of the second support arm away from the arc-shaped top plate is rotatably connected to the support sleeve and the annular seat.

[0009] Preferably, the driving mechanism includes a gearbox and a drive motor installed on the base, the input shaft of the gearbox is connected to the drive motor, the drive motor is connected to the control unit, and transmission wheels are respectively installed on the end of the support sleeve away from the clamping wheel and the output shaft of the gearbox, and the transmission wheels are connected by a transmission belt.

[0010] Preferably, a hydraulic control station is provided on the base, the hydraulic control station is connected to the control unit, the hydraulic control station is connected to the oil supply slip ring through an oil pipe, the oil supply slip ring is coaxially arranged at the end of the hydraulic cylinder away from the pressure wheel, the rotor of the oil supply slip ring is connected to the end of the hydraulic cylinder away from the pressure wheel through a flange, and the stator of the oil supply slip ring is arranged on the base through a fixing frame.

[0011] Preferably, a brake caliper frame is installed on the top of the support frame, and a hydraulic brake caliper is installed on the brake caliper frame. The hydraulic brake caliper is located on one side of the support sleeve. A brake disc is coaxially provided on the support sleeve, and the brake disc is placed in the hydraulic brake caliper. The hydraulic brake caliper is connected to the hydraulic control station through an oil pipe.

[0012] Preferably, the control unit includes a controller arranged on the base, which is respectively connected to the telescopic mechanism, the pressure monitor, and the hydraulic control station. The base is provided with a shell covering the unwinding mechanism, and the surface of the shell is provided with an operating screen, which is connected to the controller.

[0013] Preferably, a guide shaft is provided on one side of the telescopic mechanism, the guide shaft is movably arranged in the first support arm, and the bottom of the guide shaft is connected to the strip seat.

[0014] Compared with the prior art, when the present invention is in use, the steel coil is placed on the unwinding mechanism, and the telescopic mechanism is controlled to fall and drive the pressure wheel to slowly be placed on the top of the steel coil to press the free end of the steel coil. As the steel coil is gradually released, the pressure of the pressure wheel on the pressure monitor gradually decreases. When the pressure value is reduced to the preset value, the telescopic mechanism continues to drive the pressure wheel to press on the top of the steel coil, so that the pressure wheel can always be pressed on the top of the steel coil, and the pressure value between the pressure wheel and the steel coil can be kept constant, which can prevent the free end of the steel coil from suddenly loosening and avoid danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 2 .

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 3 .

[0018] Figure 3 This is a schematic diagram of the structure inside the shell of the utility model Figure 1 .

[0019] Figure 4 This is a schematic diagram of the structure inside the shell of the utility model Figure 2 .

[0020] Figure 5 It is the main view of the utility model.

[0021] Figure 6 This is a schematic diagram of the specific installation structure of the pressure wheel in this utility model.

[0022] In the figure: 1. base; 2. telescopic shaft; 3. arc-shaped top plate; 4. support sleeve; 5. baffle; 6. pressure wheel; 7. U-shaped mounting frame; 8. strip seat; 9. first support arm; 10. guide shaft; 11. telescopic mechanism; 12. pressure monitor; 13. U-shaped bracket; 14. outer shell; 15. support frame; 16. operation screen; 17. second support arm; 18. hydraulic brake caliper; 19. brake caliper frame; 20. support; 21. hydraulic cylinder; 22. oil supply slip ring; 23. gearbox; 24. fixing frame; 25. transmission wheel; 26. drive motor; 27. hydraulic control station; 28. brake disc; 29. ​​limit seat; 30. guide column; 31. support spring; 32. annular seat. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solution of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figures 1 to 6 The utility model provides a technical solution: an uncoiler with a protective structure, characterized in that it includes an uncoiler mechanism, which is used to support the steel coil so that the steel coil can be released smoothly under the drive of the uncoiler mechanism.

[0025] The key point of this application is that, in order to prevent the steel coil from suddenly bouncing off, a pressure-sensing pressing mechanism is set above the steel coil. The mechanism includes a U-shaped bracket 13 with an opening facing downwards. The U-shaped bracket 13 is installed on the unwinding mechanism. A first support arm 9 is installed on one side of the top of the U-shaped bracket 13. Figure 2 As shown, the first support arm 9 is located directly above the steel coil;

[0026] A telescopic mechanism 11 is provided at the top of the first support arm 9. The telescopic mechanism 11 is one of a pneumatic cylinder, a hydraulic cylinder or an electric lifting rod, and a guide shaft 10 is provided on one side of the telescopic mechanism 11. There is at least one guide shaft 10, which is parallel to the telescopic mechanism 11 and movably arranged in the first support arm 9. The bottom of the guide shaft 10 and the bottom of the telescopic mechanism are both connected to the bar seat 8.

[0027] A U-shaped mounting frame 7 with an opening facing downward is provided below the strip seat 8, and a pressing wheel 6 is rotatably mounted on the bottom of the U-shaped mounting frame 7. The U-shaped mounting frame 7 can move up and down. Figure 1 and Figure 6 As shown, guide posts 30 are vertically provided on both sides of the top of the U-shaped mounting frame 7. The tops of the guide posts 30 are slidably provided in the two ends of the strip seat 8. A support spring 31 is sleeved on the guide posts 30 located below the strip seat 8. The two ends of the support spring 31 are elastically in contact with the strip seat 8 and the top of the U-shaped mounting frame 7, respectively. A limit seat 29 is provided on the top of each guide post 30. The limit seat 29 can prevent the guide post 30 from falling off from the strip seat 8.

[0028] A pressure monitor 12 is installed below the bar seat 8. In the initial state, the pressure monitor 12 is not in contact with the top of the U-shaped mounting frame 7, that is, there is a certain gap between the two. The pressure monitor 12 and the telescopic mechanism 11 are respectively connected to the control unit;

[0029] Specifically, such as Figure 2 As shown, the steel coil is put on the uncoiling mechanism, and then the uncoiling mechanism drives the steel coil to be released slowly. It should be noted that the free end of the steel coil is located at the top of the steel coil. The telescopic mechanism 11 is controlled to fall, driving the pressure wheel 6 to be slowly placed on the top of the steel coil, thereby pressing the free end of the steel coil to prevent the free end of the steel coil from suddenly loosening. When the steel coil is gradually released, the pressure of the pressure wheel 6 on the pressure monitor 12 gradually decreases. When the pressure value is reduced to the preset value, the telescopic mechanism 11 continues to drive the pressure wheel 6 to press on the top of the steel coil. In this way, the pressure wheel 6 can always be pressed on the top of the steel coil, and the pressure value between the pressure wheel and the steel coil can be kept constant, and the pressure wheel 6 is always pressed on the top of the steel coil to prevent the free end of the steel coil from loosening, thereby providing safety protection for the release of the steel coil;

[0030] It should be noted that a rubber block can be set at the position where the top of the U-shaped mounting frame 7 contacts the pressure monitor 12, so that the rubber block contacts the pressure monitor 12 and a buffer can be provided between the two. In addition, the support spring 31 provided can push the pressure wheel 6 downward, so that the pressure wheel 6 always keeps in contact with the steel coil.

[0031] The following is a detailed introduction to the unwinding mechanism:

[0032] The unwinding mechanism includes a base 1 and an oil pressure expansion and contraction coil, the steel coil is sleeved on the oil pressure expansion and contraction coil, and a support frame 15 is installed on the top of the base 1. Figure 3 As shown, both ends of the bottom of the U-shaped mounting frame 7 are mounted on the top of the support frame body 15;

[0033] The hydraulic expansion and contraction reel is located directly below the pressure wheel 6 and between the U-shaped mounting brackets 7. The end of the hydraulic expansion and contraction reel away from the pressure wheel 6 is rotatably mounted on the top of the support frame 15. Specifically, the hydraulic expansion and contraction reel includes a support sleeve 4. At least two supports 20 are mounted on the top of the support frame 15. The supports 20 are distributed along the axis of the support sleeve 4. The support sleeve 4 is rotatably mounted on the top of the supports 20. This allows the support sleeve 4 to have two support points, making the support sleeve 4 more stable.

[0034] like Figure 5 As shown, a hydraulic cylinder 21 is coaxially provided at one end of the support sleeve 4 away from the pressing wheel 6. The telescopic shaft 2 of the hydraulic cylinder 21 is movably placed in the support sleeve 4. The support sleeve 4 and the hydraulic cylinder 21 are connected by flanges, that is, flanges are connected to the ends of the hydraulic cylinder 21 and the ends of the support sleeve 4 respectively (such as Figure 5 (The arrow A in the middle indicates the position). When the two flanges are connected, the telescopic shaft 2 can be directly placed in the supporting sleeve 4.

[0035] like Figure 5As shown, the support sleeve 4 extends to the bottom of the pressing wheel 6, and the telescopic shaft 2 extends to the outside of the support sleeve 4. An annular seat 32 is coaxially mounted on one end of the telescopic shaft 2 close to the pressing wheel 6;

[0036] The support sleeve 4 is symmetrically provided with at least three arc-shaped top plates 3 on the outside. The arc-shaped top plates 3 are rotatably connected to the side of the support sleeve 4 with at least two second support arms 17. The second support arms 17 are tilted and parallel to each other. The ends of the second support arms 17 away from the arc-shaped top plates 3 are rotatably connected to the support sleeve 4 and the annular seat 32. There is a certain distance between the annular seat 32 and the end of the support sleeve 4. This distance is used to drive the arc-shaped top plates 3 to open and close. Figure 5 As shown, when the hydraulic cylinder 21 is extended and retracted, the annular seat 32 can be driven to move, and the annular seat 32 can drive the inclined second support arm 17 to lift or close, thereby allowing the arc-shaped top plate 3 to open and close. When the arc-shaped top plate 3 is opened, the steel coil can be tightened to prevent the steel coil from sliding.

[0037] Next, a driving mechanism for driving the oil pressure expansion and contraction coil to rotate is also provided on the base 1. The driving mechanism includes a gearbox 23 and a drive motor 26 installed on the base 1. The input shaft of the gearbox 23 is connected to the drive motor 26, and the drive motor 26 is connected to the control unit. A transmission wheel 25 is respectively installed on the end of the support sleeve 4 away from the pressure wheel 6 and the output shaft of the gearbox 23. The transmission wheels 25 are connected by a transmission belt. The transmission wheel 25 can be a synchronous wheel or a sprocket. Both can synchronously drive the support sleeve 4 to rotate without slipping. Correspondingly, the transmission belt is a synchronous belt or a transmission chain. When the drive motor 26 rotates, its torque is amplified by the gearbox 23 to drive the support sleeve 4 to rotate, and the support sleeve 4 can drive the steel coil to rotate;

[0038] The hydraulic cylinder 21 requires hydraulic oil to extend and retract in the working chamber, so a hydraulic control station 27 is provided on the base 1 and is connected to the control unit. The hydraulic control station 27 is connected to the oil supply slip ring 22 via an oil pipe. The oil supply slip ring 22 is coaxially arranged at the end of the hydraulic cylinder 21 away from the pressure wheel 6.

[0039] During installation, if Figure 3 As shown, the rotor of the oil supply slip ring 22 is connected to the end of the hydraulic cylinder 21 away from the pressure wheel 6 through a flange (as shown in FIG. Figure 5 The stator of the oil supply slip ring 22 is arranged on the base 1 through the fixing frame 24, so that the hydraulic cylinder 21 can be extended and retracted during the rotation process.

[0040] Furthermore, the unwinding mechanism also includes a braking mechanism. Since the steel coil has a large mass and a large moment of inertia when rotating, in order to prevent the support sleeve 4 from stopping immediately when not in use, a brake caliper frame 19 is installed on the top of the support frame body 15. A hydraulic brake caliper 18 is installed on the brake caliper frame 19. The hydraulic brake caliper 18 is located on one side of the support sleeve 4.

[0041] A brake disc 28 is coaxially provided on the support sleeve 4. The brake disc 28 is placed in the hydraulic brake caliper 18. The hydraulic brake caliper 18 is connected to the hydraulic control station 27 through an oil pipe. After the brake disc 28 is clamped by the hydraulic brake caliper 18, the support sleeve 4 can be firmly fixed to prevent the support sleeve 4 from unnecessary rotation when not in use.

[0042] In summary, the control unit in this application includes a controller provided on the base 1, which is connected to the telescopic mechanism 11, the pressure monitor 12, and the hydraulic control station 27. Figure 1 and Figure 2 As shown, the base 1 is provided with a housing 14 that covers the unwinding mechanism, and an operating screen 16 is provided on the surface of the housing 14. The operating screen 16 is connected to the controller, and the speed can be adjusted, emergency stop can be performed, and the opening and closing of the arc-shaped top plate 3 can be controlled through the operating screen;

[0043] It should be further explained that the pressure wheel presses the steel coil, and the steel coil is simultaneously supported by the arc-shaped top plate 3, so that both the inside and outside of the steel coil are compressed, so that the steel coil can always remain stable between the arc-shaped top plate 3 and the pressure wheel.

[0044] Based on the above embodiment, further optimization can be performed by providing ventilation louvers on both sides of the housing 14 and also providing an exhaust fan at at least one of the ventilation louvers.

[0045] Based on the above embodiment, it can be further optimized by installing a baffle 5 at one end of the arc-shaped top plate 3 close to the U-shaped bracket 13. The baffle 5 is used to prevent the steel coil from moving toward the U-shaped bracket 13 and can also position the steel coil.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An uncoiler with a protective structure, comprising an uncoiler mechanism, characterized in that: It also includes a U-shaped bracket (13) installed on the unwinding mechanism and with its opening facing downward, a first support arm (9) being installed on one side of the top of the U-shaped bracket (13), and the first support arm (9) being located directly above the steel coil; A telescopic mechanism (11) is provided at the top of the first support arm (9), a strip seat (8) is installed at the bottom of the telescopic mechanism, a U-shaped mounting frame (7) with an opening facing downward is provided below the strip seat (8), and a pressure wheel (6) is rotatably installed at the bottom of the U-shaped mounting frame (7); Guide columns (30) are vertically provided on both sides of the top of the U-shaped mounting frame (7), and the tops of the guide columns (30) are slidably provided in the two ends of the strip seat (8), and a limit seat (29) is provided on the top of each guide column (30); and, A pressure monitor (12) is installed below the strip seat (8). In an initial state, the pressure monitor (12) is not in contact with the top of the U-shaped mounting frame (7). The pressure monitor (12) and the telescopic mechanism (11) are respectively connected to the control unit.

2. The uncoiler with a protective structure according to claim 1, characterized in that: A support spring (31) is sleeved on the guide column (30) located below the strip seat (8), and two ends of the support spring (31) are in elastic contact with the strip seat (8) and the top of the U-shaped mounting frame (7), respectively.

3. The uncoiler with a protective structure according to claim 1, characterized in that: The unwinding mechanism comprises a base (1) and an oil pressure expansion and contraction reel, a support frame (15) is mounted on the top of the base (1), and both ends of the bottom of the U-shaped mounting frame (7) are mounted on the top of the support frame (15); The hydraulic expansion and contraction reel is located directly below the pressure wheel (6), the hydraulic expansion and contraction reel is located between the U-shaped mounting frames (7), and the end of the hydraulic expansion and contraction reel away from the pressure wheel (6) is rotatably mounted on the top of the support frame (15); and, A driving mechanism for driving the oil pressure expansion and contraction cylinder to rotate is also provided on the base (1).

4. The uncoiler with a protective structure according to claim 3, characterized in that: The oil pressure expansion and contraction reel comprises a support sleeve (4), at least two supports (20) are installed on the top of the support frame (15) along the direction of the support sleeve (4), and the support sleeve (4) is rotatably installed in the top of the support (20); A hydraulic cylinder (21) is coaxially provided at one end of the support sleeve (4) away from the pressing wheel (6); a telescopic shaft (2) of the hydraulic cylinder (21) is movably placed in the support sleeve (4); and the support sleeve (4) and the hydraulic cylinder (21) are connected via a flange. The support sleeve (4) extends to the bottom of the pressure wheel (6), and the telescopic shaft (2) extends to the outside of the support sleeve (4). An annular seat (32) is coaxially mounted on one end of the telescopic shaft (2) close to the pressure wheel (6), and a certain distance exists between the annular seat (32) and the end of the support sleeve (4); At least three arc-shaped top plates (3) are symmetrically provided on the outside of the support sleeve (4), and at least two second support arms (17) are rotatably connected to the side of the arc-shaped top plates (3) close to the support sleeve (4). The second support arms (17) are inclined and parallel to each other, and the ends of the second support arms (17) away from the arc-shaped top plates (3) are rotatably connected to the support sleeve (4) and the annular seat (32).

5. The uncoiler with a protective structure according to claim 4, characterized in that: The driving mechanism includes a gearbox (23) and a driving motor (26) mounted on the base (1), an input shaft of the gearbox (23) is connected to the driving motor (26), and the driving motor (26) is connected to the control unit; A transmission wheel (25) is mounted on one end of the support sleeve (4) away from the pressure wheel (6) and on the output shaft of the gearbox (23), and the transmission wheels (25) are connected by a transmission belt.

6. The uncoiler with a protective structure according to claim 5, characterized in that: A hydraulic control station (27) is provided on the base (1), and the hydraulic control station (27) is connected to the control unit; The hydraulic control station (27) is connected to the oil supply slip ring (22) through an oil pipe. The oil supply slip ring (22) is coaxially arranged at one end of the hydraulic cylinder (21) away from the pressure wheel (6); The rotor of the oil supply slip ring (22) is connected to the end of the hydraulic cylinder (21) away from the pressure wheel (6) through a flange, and the stator of the oil supply slip ring (22) is set on the base (1) through a fixing frame (24).

7. The uncoiler with a protective structure according to claim 6, characterized in that: A brake caliper frame (19) is installed on the top of the support frame (15), and a hydraulic brake caliper (18) is installed on the brake caliper frame (19). The hydraulic brake caliper (18) is located on one side of the support sleeve (4); A brake disc (28) is coaxially provided on the support sleeve (4), and the brake disc (28) is placed in the hydraulic brake caliper (18). The hydraulic brake caliper (18) is connected to the hydraulic control station (27) through an oil pipe.

8. The uncoiler with a protective structure according to claim 7, characterized in that: The control unit includes a controller arranged on a base (1), and the controller is respectively connected to the telescopic mechanism (11), the pressure monitor (12), and the hydraulic control station (27); A housing (14) covering the unwinding mechanism is provided on the base (1), and an operating screen (16) is provided on the surface of the housing (14). The operating screen (16) is connected to the controller.

9. The uncoiler with a protective structure according to claim 1, characterized in that: A guide shaft (10) is provided on one side of the telescopic mechanism (11). The guide shaft (10) is movably arranged in the first support arm (9). The bottom of the guide shaft (10) is connected to the strip seat (8).

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