Unreeling mechanism for metal coiled material processing

Abstract

The invention relates to the technical field of uncoiler machining, in particular to an unwinding mechanism for metal coiled material machining, which comprises a mounting rack and an expansion and contraction mechanism arranged on the mounting rack, and further comprises a pressing arm mechanism arranged on the mounting rack and used for pressing a metal coiled material sleeved outside the expansion and contraction mechanism; the pressing arm mechanism comprises a pressing arm assembly which can be pressed on the surface of the metal coiled material after being driven. The transmission assembly is used for transmitting power between the expansion and contraction mechanism and the pressing arm assembly; and the axial adjusting assembly is used for connecting the transmission assembly and the pressing arm assembly. The device has the beneficial effects that the pressing arm assembly is in transmission connection with the expansion and contraction mechanism through the transmission assembly and the axial adjusting assembly, and when the expansion and contraction mechanism drives the metal coiled material to rotate and uncoil, the pressing arm assembly can be synchronously driven to deflect towards one side close to the metal coiled material, so that the deflection speed of the pressing arm assembly is matched with the linear speed change of the diameter of the metal coiled material; therefore, it is guaranteed that the pressing arm assembly can always press the metal coiled material tightly.

Description

Technical Field

[0001] The invention relates to the technical field of uncoilers, in particular to an unwinding mechanism for metal coil processing. Background Art

[0002] The metal coil unwinding mechanism, also known as the uncoiler, is a device used in the metal processing and manufacturing process to unwind the coil (such as steel coil, aluminum coil, etc.) and transport it to the subsequent processing equipment. It is widely used in industries such as steel, non-ferrous metals, automobile manufacturing, and home appliance production.

[0003] For example, the patent with publication number CN116605690A discloses a uncoiler, including a frame, a hydraulic station and an uncoiler body, wherein the uncoiler body is mounted on the frame, the uncoiler body is used to drive the coil to rotate, a pressure roller assembly for providing a pressing force to the coil is installed on one side of the uncoiler body, a disc is fixedly mounted on the uncoiler body, a disc brake assembly for emergency stopping the uncoiler body is provided on one side of the disc, the hydraulic station is located on one side of the frame, and the hydraulic station is used to control the hydraulic drive. The hydraulic cylinder drives the driving arm and the pressure wheel to move in the direction of the coil, so that the pressure wheel is pressed against the outer surface of the coil to prevent the coil from loosening when unwinding.

[0004] The shortcoming of the existing technology is that it drives the pressure wheel to move through the hydraulic cylinder to achieve the compression of the metal coil, but when unwinding at high speed, the servo adjustment speed of the pressure wheel is difficult to keep up with the linear speed change of the metal coil diameter, resulting in the pressure wheel being unable to stably and continuously compress the metal coil, causing a sudden change in the tension of the metal coil, affecting the stability and accuracy of the coil unwinding. For this reason, we propose a unwinding mechanism for metal coil processing to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a reeling mechanism for metal coil processing to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a reeling mechanism for metal coil processing, comprising a mounting frame and an expansion and contraction mechanism arranged on the mounting frame, and further comprising: a pressing arm mechanism, arranged on the mounting frame, for pressing the metal coil sleeved on the outside of the expansion and contraction mechanism; The pressure arm mechanism includes a pressure arm assembly, which can be pressed on the surface of the metal coil after being driven; a transmission assembly, which is used to transmit power between the expansion and contraction mechanism and the pressure arm assembly; and an axial adjustment assembly, which is used to connect the transmission assembly and the pressure arm assembly. The transmission assembly includes an electric telescopic rod and a gear set. When the expansion and contraction mechanism rotates, the transmission assembly and the axial adjustment assembly can drive the pressure arm assembly to deflect. The coordination between different gears in the pair of gear sets of the electric telescopic rod is switched, so that the deflection direction of the pressure arm assembly and the deflection speed in different deflection directions can be adjusted.

[0007] Preferably, the transmission assembly also includes a reducer and a sprocket component, the sprocket component is arranged at one end of the reducer input shaft, and is used to transmit power between the reducer and the expansion and contraction mechanism, and the gear group includes a one-way ratchet gear 1 and a one-way ratchet gear 2 fixedly mounted on the reducer input shaft, a one-way ratchet gear 3 and a one-way ratchet gear 4 fixedly mounted on the reducer output shaft, and a transmission gear 1 and a transmission gear 2.

[0008] Preferably, the transmission gear 1 can be switched by the electric telescopic rod 1 to engage with the one-way ratchet gear 1 or the one-way ratchet gear 2, and the transmission gear 2 can be switched by the electric telescopic rod 1 to engage with the one-way ratchet gear 3 or the one-way ratchet gear 4, the one-way ratchet gear 1 and the one-way ratchet gear 3 have the same rotation direction, and the one-way ratchet gear 2 and the one-way ratchet gear 4 have the same rotation direction.

[0009] Preferably, the axial adjustment assembly includes a movable transmission sleeve and a transmission rod, and the transmission rod slides in the transmission sleeve to adjust the position of the pressure arm assembly along the axial direction of the expansion and contraction mechanism. The transmission sleeve and the transmission rod cooperate to transmit torque between the transmission assembly and the axial adjustment assembly.

[0010] Preferably, the pressure arm assembly includes a connecting pressure arm and a central pressure roller and a side pressure roller movably mounted on the connecting pressure arm. The side pressure roller and the central pressure roller are located on the same central axis, and a positioning flange is provided at one end of the side pressure roller away from the central pressure roller.

[0011] Preferably, the positioning edge is driven to move at the end of the central pressure roller, and the positioning edge is clamped at the edge of the metal coil.

[0012] Preferably, the expansion and contraction mechanism includes a support shaft movably mounted on a mounting frame, a hydraulic cylinder located at one end of the support shaft, a support plate assembly is arranged on the circumference of the support shaft, and a transmission connection is formed between the support plate assembly and the hydraulic cylinder.

[0013] Preferably, the support plate assembly includes a fan-shaped support plate, a cavity is opened in the fan-shaped support plate, a transmission plate is clamped in the cavity, and hydraulic oil located on the top of the transmission plate is injected. A lifting component and an auxiliary support bar are arranged on the side of the fan-shaped support plate away from the support shaft.

[0014] Preferably, one end of the lifting component is fixedly connected to the auxiliary support bar, and the other end is connected to the cavity inside the fan-shaped support plate. When the transmission plate moves in the cavity, the auxiliary support bar can be pushed out through the transmission of hydraulic oil and the lifting component.

[0015] Preferably, the auxiliary support bars are arranged on the fan-shaped support plate in a direction parallel to the support axis, and the auxiliary support bars are located on both sides of the longitudinal bisector of the fan-shaped support plate.

[0016] In the above technical scheme, the beneficial effect of the present invention is: the pressure arm assembly is connected to the expansion and contraction mechanism through the transmission assembly and the axial adjustment assembly, and when the expansion and contraction mechanism drives the metal coil to rotate and unwind, it can synchronously drive the pressure arm assembly to deflect to the side close to the metal coil, so that the deflection speed of the pressure arm assembly matches the linear speed change of the diameter of the metal coil, thereby ensuring that the pressure arm assembly can always press the metal coil tightly. In addition, by arranging one-way ratchet gears with opposite rotation directions on the input and output shafts of the reducer, the pressure arm assembly can be driven to move slowly to press the metal coil through the speed reduction of the reducer and the transmission through the one-way ratchet gear on the output shaft, and the one-way ratchet gear on the input shaft of the reducer can drive the quick pressure arm assembly to deflect in the opposite direction for reset, thereby shortening the operation time.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0018] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a structural schematic diagram of one side of the mounting frame of the present invention; Figure 2 It is a schematic diagram of the structure of the other side of the mounting frame of the present invention; Figure 3 This is a schematic diagram of the structure of the installation frame of the present invention from a top view; Figure 4 It is a structural schematic diagram of the transmission assembly of the present invention; Figure 5 It is a structural schematic diagram of the two ends of the reducer of the present invention; Figure 6 It is a structural schematic diagram of the axial adjustment assembly of the present invention; Figure 7 It is a structural schematic diagram of the pressure arm assembly of the present invention; Figure 8 It is a structural schematic diagram of the expansion and contraction mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the support plate assembly of the present invention; Fig.10 It is a structural schematic diagram of the cross section of the fan-shaped support plate of the present invention; Fig.11 This is a schematic structural diagram of the bottom of the auxiliary support strip of the present invention; Fig.12 It is a structural schematic diagram of the jacking component of the present invention.

[0021] Description of reference numerals: In the figure: 1. Install the rack; 2. expansion and contraction mechanism; 21. support shaft; 22. outer sleeve; 23. hydraulic cylinder; 24. support plate assembly; 241. fan-shaped support plate; 242. transmission plate; 243. auxiliary support bar; 244. lifting component; 2441. positioning sleeve; 2442. transmission piston; 2443. return spring; 3. Driving motor; 4. Tail end support frame; 5. Loading pulley; 6. Arm pressing mechanism; 61. Transmission assembly; 611. Electric telescopic rod 1; 612. Speed ​​reducer; 613. Sprocket assembly; 614. Transmission gear 1; 615. Transmission gear 2; 616. One-way ratchet gear 1; 617. One-way ratchet gear 2; 618. One-way ratchet gear 3; 619. One-way ratchet gear 4; 62, axial adjustment assembly; 621, transmission sleeve; 622, transmission rod; 623, adjustment screw; 63. Pressing arm assembly; 631. Connecting pressing arm; 632. Center pressing roller; 633. Side pressing roller; 634. Positioning edge; 635. Electric telescopic rod 2. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0023] See also Figure 1-12The embodiment of the present invention provides a technical solution: a reeling mechanism for metal coil processing, comprising a mounting frame 1 and an expansion and contraction mechanism 2 arranged on the mounting frame 1, and also comprising: a pressing arm mechanism 6, which is arranged on the mounting frame 1 and is used to press the metal coil mounted on the outside of the expansion and contraction mechanism 2, and a tail end support frame 4 is arranged at the tail of the mounting frame 1 for auxiliary support of the expansion and contraction mechanism 2, and a loading pulley 5 is arranged on one side of the mounting frame 1 close to the tail end support frame 4 for transporting the metal coil to the expansion and contraction mechanism 2.

[0024] The pressing arm mechanism 6 includes a pressing arm assembly 63, which can be pressed on the surface of the metal coil after being driven; a transmission assembly 61, which is used to transmit power between the expansion and contraction mechanism 2 and the pressing arm assembly 63; an axial adjustment assembly 62, which is used to connect the transmission assembly 61 and the pressing arm assembly 63; The transmission assembly 61 includes an electric telescopic rod 611 and a gear set. When the expansion and contraction mechanism 2 rotates, the transmission assembly 61 and the axial adjustment assembly 62 can drive the pressure arm assembly 63 to deflect. The electric telescopic rod 611 switches the coordination between different gears in the gear set, and can adjust the deflection direction of the pressure arm assembly 63 and the deflection speed in different deflection directions.

[0025] Specifically, the mounting frame 1 is used to provide an installation position for the expansion and contraction mechanism 2 and the pressure arm mechanism 6. The pressure arm assembly 63 is connected to the expansion and contraction mechanism 2 through the transmission assembly 61 and the axial adjustment assembly 62. In the initial state, the pressure arm assembly 63 is adjusted to the position of pressing the metal coil. When the expansion and contraction mechanism 2 drives the metal coil to unwind, a group of gears in the gear group is driven to drive the pressure arm assembly 63 to deflect synchronously to the side close to the metal coil, so that the deflection speed of the pressure arm assembly 63 matches the linear speed change of the metal coil diameter, ensuring that the pressure arm assembly Component 63 can always press the metal coil tightly; when the metal coil is unrolled, the expansion and contraction mechanism 2 rotates clockwise, and the transmission through the reducer 612 and the one-way ratchet gear three 618 can drive the pressure arm assembly 63 to deflect to the side close to the metal coil, and at this time, the pressure arm assembly 63 is in a slow moving state and can match the change of the linear velocity of the metal coil diameter. The expansion and contraction mechanism 2 rotates counterclockwise, and directly transmits through the one-way ratchet gear one 616 without deceleration through the reducer 612, which can drive the pressure arm assembly 63 to quickly deflect to the side away from the metal coil for reset, thereby shortening the operation time.

[0026] Compared with the prior art, the pressure arm assembly 63 is connected to the expansion and contraction mechanism 2 through the transmission assembly 61 and the axial adjustment assembly 62. When the expansion and contraction mechanism 2 drives the metal coil to rotate and unwind, it can synchronously drive the pressure arm assembly 63 to deflect toward the side close to the metal coil, so that the deflection speed of the pressure arm assembly 63 matches the linear speed change of the diameter of the metal coil, thereby ensuring that the pressure arm assembly 63 can always press the metal coil. In addition, through the deceleration of the reducer 612 and the transmission through the one-way ratchet gear on the output shaft, the pressure arm assembly 63 can be driven to move slowly to press the metal coil. Through the one-way ratchet gear transmission on the input shaft of the reducer 612, the quick pressure arm assembly 63 can be driven to deflect in the opposite direction for reset, thereby shortening the operation time.

[0027] As the preferred technical solution of this embodiment, the transmission component 61 also includes a reducer 612 and a sprocket component 613. The sprocket component 613 is arranged at one end of the input shaft of the reducer 612 and is used to transmit power between the reducer 612 and the expansion and contraction mechanism 2. The gear set includes a one-way ratchet gear 1 616 and a one-way ratchet gear 2 617 fixedly mounted on the input shaft of the reducer 612, a one-way ratchet gear 3 618 and a one-way ratchet gear 4 619 fixedly mounted on the output shaft of the reducer 612, as well as a transmission gear 1 614 and a transmission gear 2 615. Specifically, the transmission component 61 also includes a mounting bracket, which is fixedly mounted on the mounting frame 1, and the reducer 612 and the electric motor 2 are connected. The movable telescopic rod 611 is fixedly installed on the mounting bracket. The electric telescopic rod 611 and the reducer 612 are existing technologies and are commercially available. The reducer 612 is preferably a stepless speed-regulating reducer. The expansion and contraction mechanism 2 needs to unwind metal coils of different thicknesses. The deflection speed of the pressure arm assembly 63 can be adjusted according to the linear speed change of the diameter of the metal coils of different thicknesses through the stepless speed-regulating reducer; the sprocket component 613 is composed of two groups of transmission sprockets and a group of transmission chains. One group of transmission sprockets is mounted on the input shaft of the reducer 612, and the other group of transmission sprockets is mounted on the support shaft 21, so as to realize the transmission of power between the expansion and contraction mechanism 2 and the reducer 612.

[0028] In one embodiment provided by the present invention, the transmission gear 1 614 is switched by the electric telescopic rod 1 611 to mesh with the one-way ratchet gear 1 616 or the one-way ratchet gear 2 617, and the transmission gear 2 615 is switched by the electric telescopic rod 1 611 to mesh with the one-way ratchet gear 3 618 or the one-way ratchet gear 4 619. The one-way ratchet gear 1 616 has the same rotation direction as the one-way ratchet gear 3 618, and the one-way ratchet gear 2 617 has the same rotation direction as the one-way ratchet gear 4 619. Specifically, for metal When the metal coil is unwound, the transmission gear 2 615 meshes with the one-way ratchet gear 3 618, the transmission gear 1 614 meshes with the one-way ratchet gear 1 616, and the expansion and contraction mechanism 2 drives the metal coil to rotate clockwise to unwind. The speed reducer 612, the one-way ratchet gear 3 618 and the transmission gear 2 615 rotate, which can drive the pressure arm assembly 63 to slowly deflect toward the side close to the metal coil. Since the one-way ratchet gear 1 616 and the one-way ratchet gear 3 618 can only rotate in one direction, at this time, the one-way ratchet gear 1 616 and the one-way ratchet gear 3 618 can rotate in one direction. No power is transmitted between the transmission gear 1 614; the expansion and contraction mechanism 2 reverses, and at this time, no power is transmitted between the one-way ratchet gear 3 618 and the transmission gear 2 615, which drives the one-way ratchet gear 1 616 and the transmission gear 1 614 to rotate, and directly drives the pressure arm assembly 63 to quickly deflect to the side away from the metal coil without deceleration by the reducer 612, so that the pressure arm assembly 63 can be quickly reset; the electric telescopic rod 1 611 is movably connected to the transmission sleeve 621 through the lever. When the metal coil is rolled up, the transmission sleeve 621 is driven axially by the electric telescopic rod 1 611, so that the one-way ratchet gear 2 617 is meshed with the transmission gear 1 614, and the one-way ratchet gear 4 619 is meshed with the transmission gear 2 615, and the working state of the pressure arm assembly 63 is adjusted. At this time, the pressure arm assembly 63 moves to the side close to the expansion and contraction mechanism 2 as a fast moving state, and the pressure arm assembly 63 moves to the side away from the expansion and contraction mechanism 2 as a slow moving state, so that the pressure arm assembly 63 can press the metal coil when the metal coil is rolled up.

[0029] In another embodiment provided by the present invention, the axial adjustment component 62 includes a movably mounted transmission sleeve 621 and a transmission rod 622. The transmission rod 622 slides in the transmission sleeve 621 to adjust the position of the pressure arm component 63 along the axial direction of the expansion and contraction mechanism 2. The transmission sleeve 621 and the transmission rod 622 cooperate to transmit torque between the transmission component 61 and the axial adjustment component 62. Specifically, the transmission sleeve 621 is movably mounted on the mounting bracket, and can move axially when driven by the electric telescopic rod 611. The transmission sleeve 621 and the transmission rod 622 are splined to ensure that the transmission rod 622 can slide inside the transmission sleeve 621 and transmit torque at the same time. An adjusting screw 623 is rotatably mounted on the transmission sleeve 621, and the adjusting screw 623 is threadedly connected to the transmission rod 622. By rotating the adjusting screw 623 to drive the transmission rod 622 to move, the position of the pressure arm component 63 along the axial direction of the expansion and contraction mechanism 2 can be adjusted to ensure that the pressure arm component 63 can be pressed in the middle position of the metal coil.

[0030] In another embodiment provided by the present invention, the pressure arm assembly 63 includes a connecting pressure arm 631 and a central pressure roller 632 and a side pressure roller 633 movably mounted on the connecting pressure arm 631. The side pressure roller 633 and the central pressure roller 632 are on the same central axis, and a positioning flange 634 is provided at one end of the side pressure roller 633 away from the central pressure roller 632. Specifically, an axle is fixedly mounted on one end of the connecting pressure arm 631 away from the axial adjustment assembly 62, and the central pressure roller 632 and the side pressure roller 633 are both movably mounted on the axle. There are two groups of side pressure rollers 633, which are respectively located at two ends of the central pressure roller 632. The metal coil can be pressed at multiple locations through the cooperation between the central pressure roller 632 and the side pressure roller 633 to prevent the metal coil from being damaged by excessive local force. An electric telescopic rod 635 is fixedly mounted on the connecting pressure arm 631, and the electric telescopic rod 635 is movably connected to the side pressure roller 633 through a connecting rod. The electric telescopic rod 635 is a prior art and is commercially available.

[0031] In another embodiment provided by the present invention, the positioning edge 634 is driven to move at the end of the center pressure roller 632, and the positioning edge 634 is clamped at the edge position of the metal coil. Specifically, after the pressure arm assembly 63 is adjusted as a whole to the center position of the metal coil through the axial adjustment assembly 62, the side pressure roller 633 is driven to move through the electric telescopic rod 635, and the positioning edge 634 is clamped at the end edge position of the metal coil. While ensuring that the side pressure roller 633 can press the metal coil tightly, the metal coil is restricted by the positioning edge 634, so that the metal coil can be corrected.

[0032] In the prior art, the support shaft 21 tightens the metal coil through the radially moving support plate assembly 24, but the surface curvature of the support plate assembly 24 is fixed. However, for metal coils with different apertures, the curvatures of the inner walls of the holes are different. Therefore, when the existing support plate assembly 24 supports metal coils with different apertures, a single-line contact is actually formed through the highest point of the support plate assembly 24. Although multiple annularly distributed support plate assemblies 24 can achieve positioning of the metal coil, there are still problems of poor fit and unstable support. In this regard, the following embodiments are proposed to solve this problem.

[0033] In one embodiment provided by the present invention, the expansion and contraction mechanism 2 includes a support shaft 21 movably mounted on the mounting frame 1, a hydraulic cylinder 23 located at one end of the support shaft 21, a support plate assembly 24 is arranged on the peripheral side of the support shaft 21, and the support plate assembly 24 and the hydraulic cylinder 23 are transmission-connected. Specifically, a driving motor 3 is fixedly mounted on the top of the mounting frame 1 for providing power for the rotation of the support shaft 21, and the hydraulic cylinder 23 is rotationally mounted in the mounting frame 1, which realizes oil supply through a rotary oil supply structure in the prior art; an outer sleeve 22 is sleeved on the outside of the support shaft 21, and a connecting shaft is passed through the inside, one end of the connecting shaft is fixedly connected to the outer sleeve 22, and the other end is fixedly connected to the output shaft of the hydraulic cylinder 23, and the hydraulic cylinder 23 can drive the outer sleeve 22 to move axially through the connecting shaft; the support plate assembly 24 is integrally clamped on the support shaft 21 and can move radially, and the support plate assembly 24 is connected to the outer sleeve 22 by a wedge block, and when the outer sleeve 22 moves axially, the support plate assembly 24 is driven radially through the wedge block transmission.

[0034] In another embodiment provided by the present invention, the support plate assembly 24 includes a fan-shaped support plate 241, in which a cavity is opened, and a transmission plate 242 is clamped in the cavity and filled with hydraulic oil located on the top of the transmission plate 242. A lifting component 244 and an auxiliary support bar 243 are provided on the side of the fan-shaped support plate 241 away from the support shaft 21. Specifically, when the wedge block drives the fan-shaped support plate 241 to move and makes its highest point contact with the inner wall of the metal coil, the wedge block continues to drive the transmission plate 242 to move, pushing the hydraulic oil into the lifting component 244, and then pushing the auxiliary support bar 243 out and pressing the inner wall of the metal coil, so as to achieve tensioning of the metal coil at multiple positions.

[0035] In another embodiment provided by the present invention, one end of the lifting component 244 is fixedly connected to the auxiliary support bar 243, and the other end is connected to the cavity inside the fan-shaped support plate 241. When the transmission plate 242 moves in the cavity, the auxiliary support bar 243 can be pushed out through the transmission of hydraulic oil and the lifting component 244. Specifically, the auxiliary support bar 243 is clamped on the top of the fan-shaped support plate 241, and the lifting component 244 includes a positioning sleeve 2441, which is nested in the top of the fan-shaped support plate 241, a transmission plate 242, which is movably installed in the interior of the positioning sleeve 2441, and a return spring 2443, which is movably sleeved on the outside of the transmission piston 2442. The bottom end of the positioning sleeve 2441 is connected to the cavity. The hydraulic oil in the cavity can enter the positioning sleeve 2441 along the bottom of the positioning sleeve 2441 and push the transmission piston 2442 to move. The top of the transmission piston 2442 is fixedly connected to the auxiliary support bar 243.

[0036] In another embodiment provided by the present invention, the auxiliary support bar 243 is arranged on the fan-shaped support plate 241 in a direction parallel to the support shaft 21, and the auxiliary support bar 243 is located on both sides of the longitudinal bisecting plane of the fan-shaped support plate 241. Specifically, a plurality of auxiliary support bars 243 are arranged on the fan-shaped support plate 241, which can realize multi-line tightening of the metal coil and improve the positioning effect of the metal coil; a plurality of lifting components 244 are arranged at the bottom of the auxiliary support bar 243, and the hydraulic oil in the cavity can apply thrust to the auxiliary support bar 243 along multiple locations; the complex lifting components 244 The positioning spring 2443 applies elastic force to the transmission piston 2442, so that the initial position of the transmission piston 2442 remains stable. When the wedge block drives the fan-shaped support plate 241 to move, the return spring 2443 applies a reaction force to the transmission piston 2442 and the hydraulic oil to prevent the transmission plate 242 from moving in the cavity at this time, ensuring that after the highest point of the fan-shaped support plate 241 contacts the inner wall of the metal coil, the wedge block continues to drive the transmission plate 242 to move and overcome the elastic force of the return spring 2443 to push the transmission piston 2442 through the hydraulic oil to drive the auxiliary support bar 243 to move.

[0037] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reeling mechanism for metal coil processing, comprising a mounting frame (1) and an expansion and contraction mechanism (2) arranged on the mounting frame (1), characterized in that: Also includes: A pressing arm mechanism (6) is arranged on the mounting frame (1) and is used to press the metal coiled material sleeved on the outside of the expansion and contraction mechanism (2); The pressing arm mechanism (6) comprises a pressing arm assembly (63) which can be pressed on the surface of the metal coil after being driven; a transmission assembly (61) used to transmit power between the expansion and contraction mechanism (2) and the pressing arm assembly (63); and an axial adjustment assembly (62) used to connect the transmission assembly (61) and the pressing arm assembly (63); The transmission assembly (61) comprises an electric telescopic rod (611) and a gear set. When the expansion and contraction mechanism (2) rotates, the transmission energy is transmitted through the transmission assembly (61) and the axial adjustment assembly (62) to drive the pressure arm assembly (63) to deflect. The electric telescopic rod (611) switches the coordination between different gears in the gear set, and can adjust the deflection direction of the pressure arm assembly (63) and the deflection speed under different deflection directions.

2. The unwinding mechanism for metal coil processing according to claim 1, characterized in that: The transmission assembly (61) further comprises a reducer (612) and a sprocket component (613). The sprocket component (613) is arranged at one end of the input shaft of the reducer (612) and is used to transmit power between the reducer (612) and the expansion and contraction mechanism (2). The gear set comprises a one-way ratchet gear 1 (616) and a one-way ratchet gear 2 (617) fixedly mounted on the input shaft of the reducer (612), a one-way ratchet gear 3 (618) and a one-way ratchet gear 4 (619) fixedly mounted on the output shaft of the reducer (612), and a transmission gear 1 (614) and a transmission gear 2 (615).

3. The unwinding mechanism for metal coil processing according to claim 2, characterized in that: The transmission gear 1 (614) is switched by the electric telescopic rod 1 (611) to mesh with the one-way ratchet gear 1 (616) or the one-way ratchet gear 2 (617); the transmission gear 2 (615) is switched by the electric telescopic rod 1 (611) to mesh with the one-way ratchet gear 3 (618) or the one-way ratchet gear 4 (619); the one-way ratchet gear 1 (616) and the one-way ratchet gear 3 (618) have the same rotation direction, and the one-way ratchet gear 2 (617) and the one-way ratchet gear 4 (619) have the same rotation direction.

4. The unwinding mechanism for metal coil processing according to claim 1, characterized in that: The axial adjustment component (62) comprises a transmission sleeve (621) and a transmission rod (622) which are movable in a sleeve. The transmission rod (622) slides in the transmission sleeve (621) to adjust the position of the pressure arm component (63) along the axial direction of the expansion and contraction mechanism (2). The transmission sleeve (621) and the transmission rod (622) cooperate to transmit torque between the transmission component (61) and the axial adjustment component (62).

5. The unwinding mechanism for metal coil processing according to claim 1, characterized in that: The pressure arm assembly (63) comprises a connecting pressure arm (631), a central pressure roller (632) and a side pressure roller (633) movably mounted on the connecting pressure arm (631); the side pressure roller (633) and the central pressure roller (632) are located on the same central axis, and a positioning flange (634) is provided at one end of the side pressure roller (633) away from the central pressure roller (632).

6. The unwinding mechanism for metal coil processing according to claim 5, characterized in that: The positioning edge (634) is driven to move at the end of the central pressure roller (632), and the positioning edge (634) is clamped at the edge of the metal coil.

7. The unwinding mechanism for metal coil processing according to claim 1, characterized in that: The expansion and contraction mechanism (2) comprises a support shaft (21) movably mounted on the mounting frame (1), a hydraulic cylinder (23) located at one end of the support shaft (21), a support plate assembly (24) provided on the peripheral side of the support shaft (21), and a transmission connection between the support plate assembly (24) and the hydraulic cylinder (23).

8. The unwinding mechanism for metal coil processing according to claim 7, characterized in that: The support plate assembly (24) comprises a fan-shaped support plate (241), a cavity being formed in the fan-shaped support plate (241), a transmission plate (242) being clamped in the cavity, and hydraulic oil being injected at the top of the transmission plate (242), and a lifting component (244) and an auxiliary support bar (243) being provided on a side of the fan-shaped support plate (241) away from the support shaft (21).

9. The unwinding mechanism for metal coil processing according to claim 8, characterized in that: One end of the lifting component (244) is fixedly connected to the auxiliary support bar (243), and the other end is communicated with the cavity inside the fan-shaped support plate (241). When the transmission plate (242) moves in the cavity, the auxiliary support bar (243) can be pushed out through transmission of hydraulic oil and the lifting component (244).

10. The unwinding mechanism for metal coil processing according to claim 9, characterized in that: The auxiliary support strips (243) are arranged on the fan-shaped support plate (241) along a direction parallel to the support shaft (21), and the auxiliary support strips (243) are located on both sides of a longitudinal bisecting plane of the fan-shaped support plate (241).

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