Novel double-end uncoiler

Abstract

The utility model discloses a novel double-end uncoiling machine, and relates to the field of coiled material uncoiling equipment. The device comprises a base, a stand column, a case, a first expanding and shrinking mechanism, a second expanding and shrinking mechanism, a driving device and a braking device. A first main shaft and a second main shaft are arranged on the first expanding and shrinking mechanism and the second expanding and shrinking mechanism respectively, the first main shaft and the second main shaft are rotatably arranged on the machine box in a penetrating mode, and driven chain wheels and brake discs are arranged on the first main shaft and the second main shaft respectively. The driving device comprises a gear motor, a driving sprocket and a chain, the driving sprocket is connected to an output shaft of the gear motor, the upper part of the chain is meshed with the driving sprocket, and the lower part is meshed with the driven sprocket; the brake device comprises a first air compression disc brake and a second air compression disc brake. According to the utility model, low-speed and high-torque power output can be provided, stable uncoiling operation is realized, and the heat dissipation performance and the braking performance of the brake are better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coiled material uncoiling equipment field, especially in new double -end uncoiler. BACKGROUND

[0002] The uncoiler is a kind of mechanical equipment for metal plate processing, mainly uncoils the metal plate in roll into flat plate, to facilitate subsequent processing such as leveling.The existing some uncoilers have the following shortcomings:(1) for large, heavy steel roll, the existing some uncoilers adopt conventional driving device, cannot provide high-torque power output to overcome the inertia and tension of roll material, leading to the situation that roll material appears to be stuck or cannot be uncoiled normally, so that roll material cannot enter subsequent processing equipment smoothly;(2) the existing some uncoilers adopt drum brake to brake, and the heat dissipation performance of drum brake is relatively poor, and long-time braking can easily lead to brake shoe and brake drum overheating, thereby affecting braking effect, and the braking reaction speed of drum brake is relatively slow, and brake shoe needs a certain time to contact brake drum and generate friction force, and the situation that emergency braking is needed cannot be effectively responded in the process of roll material uncoiling. SUMMARY

[0003] The utility model provides a new double -end uncoiler, can provide low-speed high-torque power output, realizes stable uncoiling operation, and the heat dissipation performance and braking performance of brake are better.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A kind of new double -end uncoiler, including base, stand, machine case, first expansion mechanism, second expansion mechanism, driving device and brake device;Stand is vertically fixed on base;Machine case is rotatably installed at the top of stand;First expansion mechanism and second expansion mechanism are respectively arranged on the left and right sides of machine case, first expansion mechanism and second expansion mechanism are respectively provided with first spindle and second spindle, first spindle and second spindle are rotatably arranged on machine case, and first spindle and second spindle are all coaxially connected with driven sprocket and brake disc;Driving device includes two speed reducing motors, two driving sprockets and two chains, two speed reducing motors are installed on the top of machine case and are located above first spindle and second spindle respectively, driving sprocket is coaxially connected on the output shaft of speed reducing motor, the upper part of chain is engaged with driving sprocket, and the lower part passes through the top of machine case and is engaged with driven sprocket;Brake device includes first air disc brake and second air disc brake, first air disc brake and second air disc brake are installed on the inner side wall of machine case, and are engaged with brake disc on first spindle and second spindle to brake.

[0006] In some embodiments, a first bearing is arranged between the first spindle and the left and right side walls of the cabinet, and a second bearing is arranged between the second spindle and the left and right side walls of the cabinet.

[0007] In some embodiments, a connecting column is fixed on the top of the column, a second bearing is coaxially connected to the connecting column, the connecting column is rotatably connected to the cabinet through the second bearing, a bearing box is sleeved on the second bearing, and a third bearing is coaxially connected to the connecting column below the bearing box.

[0008] Compared with the prior art, the utility model has at least the following beneficial effects:

[0009] (1) the utility model discloses two speed reducer motors drive the rotation of the first spindle and the second spindle respectively, and the material on the first expansion mechanism or the second expansion mechanism is unwound, the speed reducer motor is transmission connection with the first spindle or the second spindle through the driving sprocket, chain and driven sprocket, adopts the low-speed high-torque output of speed reducer motor, provides enough power for the first spindle or the second spindle, for some large, heavy material, can overcome the inertia and tension of the material, realizes the stable unwinding operation, guarantees the continuity and stability of production, adopts the meshing transmission of sprocket and chain, can reliably transmit the torque to the first spindle or the second spindle, and the slipping phenomenon does not easily appear when the load is larger;(2) the first air pressure disc brake and the second air pressure disc brake are used respectively to brake the first spindle and the second spindle, compared with the drum brake, owing to the open structure design, has good heat dissipation, and can quickly establish enough brake torque, effectively deals with the situation needing emergency braking, and the braking process is stable, and there is no obvious impact. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of the utility model embodiment;

[0011] Figure 2 It is the structural schematic diagram of the drive device of the utility model embodiment;

[0012] Figure 3 It is the connecting structure schematic diagram of the first spindle and the drive device of the utility model embodiment;

[0013] Figure 4 It is the connecting structure schematic diagram of the cabinet and the column of the utility model embodiment;

[0014] Figure 5 It is the structural schematic diagram of the gantry induction frame of the utility model embodiment;

[0015] Figure 6 It is the structural schematic diagram of the material pressing arm of the utility model embodiment;

[0016] Figure 7The utility model discloses a first expansion and contraction mechanism or second expansion and contraction mechanism structure schematic view of the embodiment of the utility model.

[0017] Figure 8 The utility model discloses a first main shaft or second main shaft and sleeve, screw rod's connection structure schematic view.

[0018] The figure mark is: 1, base, 2, stand, 21, connecting column, 3, machine case, 4, first expansion and contraction mechanism, 5, second expansion and contraction mechanism, 6, drive arrangement, 61, speed reducer motor, 62, driving sprocket, 7, brake device, 71, first air pressure disc brake, 72, second air pressure disc brake, 8, first main shaft, 9, second main shaft, 10, driven sprocket, 20, brake disc, 30, first bearing, 40, second bearing, 401, bearing box, 50, third bearing, 60, gantry induction frame, 601, side vertical board, 6011, sliding slot, 602, cross bar, 6021, photoelectric sensor, 603, cylinder, 6031, cover nut, 70, pressing arm, 701, pressing wheel, 80, air cylinder, 100, disc, 200, sleeve, 210, limit step, 220, end cover, 300, screw rod, 310, limit shaft shoulder, 400, material supporting arm, 500, connecting plate, 600, hand crank, 700, material blocking A type iron, 800, fourth bearing. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. But it should be known that the present application can be realized through various different forms, and should not be understood as limiting to the embodiments set forth herein. The embodiments are provided here to make the disclosure of the present application more complete, and to fully convey the concept of the present application to the person skilled in the art.

[0020] In the description of the present application, it is to be understood by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" of the second feature includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0021] As Figures 1-8 shown, one embodiment of the present application, the novel double-head uncoiler includes a base 1, a column 2, a machine box 3, a first expansion mechanism 4, a second expansion mechanism 5, a driving device 6, a driving device 6 and a brake device 7.

[0022] The column 2 is vertically fixed on the base 1; the cabinet 3 is rotatably installed on the top of the column 2; the first expansion mechanism 4 and the second expansion mechanism 5 are respectively arranged on the left and right sides of the cabinet 3, the first expansion mechanism 4, the cabinet 3 and the second expansion mechanism 5 form a "Z" shape, and the first expansion mechanism 4 and the second expansion mechanism 5 are respectively provided with the first main shaft 8 and the second main shaft 9, the first main shaft 8 and the second main shaft 9 are rotatably arranged on the cabinet 3, and the first main shaft 8 and the second main shaft 9 are coaxially connected with the driven sprocket 10 and the brake disc 20; the driving device 6 includes two speed reducing motors 61, two driving sprockets 62 and two chains (not shown in the figure), the two speed reducing motors 61 are installed on the top of the cabinet 3 and are respectively located above the first main shaft 8 and the second main shaft 9, the driving sprocket 62 is coaxially connected with the output shaft of the speed reducing motor 61, the upper part of the chain is engaged with the driving sprocket 62, and the lower part passes through the top of the cabinet 3 and is engaged with the driven sprocket 10, the two speed reducing motors 61 are respectively used to drive the first main shaft 8 and the second main shaft 9 to rotate; the brake device 7 includes the first air disc brake 71 and the second air disc brake 72, the first air disc brake 71 and the second air disc brake 72 are installed on the inner side wall of the cabinet 3 and are respectively matched with the brake disc 20 on the first main shaft 8 and the second main shaft 9 to brake.

[0023] Specifically, the two friction plates on the first air disc brake 71 are located on both sides of the brake disc 20 of the first main shaft 8, and the two friction plates on the second air disc brake 72 are located on both sides of the brake disc 20 of the second main shaft 9, when the two friction plates clamp the brake disc 20, a strong braking torque is generated through friction; compared with the drum brake, the first air disc brake 71 and the second air disc brake 72 have good heat dissipation due to the open structure design, the air disc brake can quickly establish sufficient braking torque, and the braking process is stable without obvious impact.

[0024] The working principle of the utility model is: the staff installs the coiled material to be uncoiled on the first expansion and contraction mechanism 4 or the second expansion and contraction mechanism 5, rotates the first main shaft 8 and the second main shaft 9 by two speed reducer motors 61 respectively, uncoils the coiled material on the first expansion and contraction mechanism 4 or the second expansion and contraction mechanism 5, the speed reducer motor 61 is connected with the first main shaft 8 or the second main shaft 9 in drive through the driving sprocket 62, chain and driven sprocket 10, the speed reducer motor 61 can provide low speed high torque output, provides sufficient power for the first main shaft 8 or the second main shaft 9, can overcome the inertia and tension of the coiled material for some large, heavy coiled material, realizes stable uncoiling operation, guarantees the continuity and stability of production, adopts sprocket chain meshing drive to reliably transmit torque to the first main shaft 8 or the second main shaft 9, and the slipping phenomenon does not easily appear when the load is larger; the two friction plates on the first air pressure disc brake 71 and the two friction plates on the second air pressure disc brake 72 are clamped on the brake disc 20 on the first main shaft 8 and the second main shaft 9 respectively, strong braking torque is generated through friction force, the first main shaft 8 or the second main shaft 9 is rapidly braked, and the heat dissipation and braking performance are good compared with drum brake.

[0025] In some embodiments, the first main shaft 8 and the left and right side walls of the case 3, and the second main shaft 9 and the left and right side walls of the case 3 are provided with first bearings 30.

[0026] In some embodiments, a connecting column 21 is vertically fixed on the top of the stand column 2, a second bearing 40 is coaxially connected on the connecting column 21, and the connecting column 21 is rotationally connected with the case 3 through the second bearing 40; preferably, the second bearing 40 is a tapered roller bearing. Further, a bearing box 401 is sleeved on the second bearing 40, and a third bearing 50 is coaxially connected on the connecting column 21 below the bearing box 401; preferably, the third bearing 50 is a thrust ball bearing.

[0027] It should be noted that in order to rotate the case 3 to realize the position switching of the first expansion and contraction mechanism 4 and the second expansion and contraction mechanism 5, a rotating motor (not shown in the figure) is installed on the connecting column 21, the output shaft of the rotating motor is connected with the case 3, when the coiled material on the first expansion and contraction mechanism 4 is used up, the case 3 is rotated by 180 degrees on the connecting column 21 through the rotating motor, the positions of the first expansion and contraction mechanism 4 and the second expansion and contraction mechanism 5 are switched, the coiled material full of the second expansion and contraction mechanism 5 is moved to the inlet end of the feeding machine or the leveling machine, and at the same time, the first expansion and contraction mechanism 4 just used can be installed with coiled material, continuous operation can be realized, and work efficiency is improved.

[0028] In some embodiments, a gantry induction frame 60 is further included, which is located on the discharge side of the first expansion and contraction mechanism 4 or the second expansion and contraction mechanism 5, and includes two side plates 601, at least two cross bars 602 and a roller 603. The two side plates 601 are parallel to each other and vertically fixed on the ground, and are provided with sliding grooves 6011 in the height direction. The cross bars 602 are fixedly connected between the lower parts of the two side plates 601, and one of the cross bars 602 is provided with a photoelectric sensor 6021. The core shaft of the roller 603 passes through the sliding grooves 6011 of the two side plates 601 and is threadedly connected with a cover-shaped nut 6031 at both ends, which is used to press against the outer side wall of the side plate 601. By tightening and loosening the cover-shaped nut 6031, the roller 603 can be slid up and down along the sliding grooves 6011 on both sides to adjust the height position of the roller 603 on the two side plates 601.

[0029] It should be noted that when the coil material on the first expansion and contraction mechanism 4 or the second expansion and contraction mechanism 5 is unwound, the coil material is guided into the feeder or the leveling machine of the next process by the roller 603. If the coil material is drooping and covers the photoelectric sensor 6021 on the cross bar 602, the photoelectric sensor 6021 will send a signal to the control system of the reduction motor 61, and the control system will control the reduction motor 61 to drive the first main shaft 8 and the second main shaft 9 to rotate slowly and smoothly, so that the coil material is unwound smoothly. The utility model can adjust the unwinding speed of the coil material according to the condition of the coil material, and can also control the start and stop of the unwinding of the coil material.

[0030] In some embodiments, two groups of material pressing arms 70 are further included, which are respectively arranged on one side of the first expansion and contraction mechanism 4 and the second expansion and contraction mechanism 5. The material pressing arm 70 is in an arch shape, and one end close to the first expansion and contraction mechanism 4 or the second expansion and contraction mechanism 5 is rotatably connected with a material pressing wheel 701, and the other end is drivingly connected with an air cylinder 80. The material pressing arm 70 presses the coil material through the material pressing wheel 701. When working, the air cylinder 80 is used to drive the material pressing arm 70 to rotate up and down. When the material pressing arm 70 presses the material pressing wheel 701 against the coil material, it can prevent the coil material from scattering, and avoid the occurrence of discharge deviation and other adverse phenomena.

[0031] In some embodiments, the first expansion mechanism 4 and the second expansion mechanism 5 each comprise a disc 100, a sleeve 200, a screw rod 300, a plurality of material supporting arms 400 and a plurality of connecting plates 500, the disc 100 and the sleeve 200 are coaxially sleeved on the outer end of the first main shaft 8 or the second main shaft 9, the inner side wall of the sleeve 200 is provided with a limiting step 210 in the circumferential direction, the closed end of the sleeve 200 is provided with an end cover 220, one end of the screw rod 300 penetrates through the end cover 220 and is threadedly connected with the first main shaft 8 or the second main shaft 9, the other end is fixed with a hand crank 600, the outer side wall of the screw rod 300 is provided with a limiting shoulder 310 in the circumferential direction, the limiting shoulder 310 is located between the end cover 220 and the limiting step 210, each material supporting arm 400 is arranged at intervals around the axis of the sleeve 200, one end of the material supporting arm 400 is slidably connected with the disc 100 and can slide up and down, the other end is provided with a material blocking A-shaped iron 700, one end of the connecting plate 500 is hingedly connected with the sleeve 200, the other end is hingedly connected with the material supporting arm 400.

[0032] Further, the fourth bearing 800 is coaxially connected on the screw rod 300 between the limiting shoulder 310 and the end cover 220 and between the limiting shoulder 310 and the limiting step 210, as preferred, the fourth bearing 800 is a thrust ball bearing, and a gasket is arranged on the screw rod 300 between the fourth bearing 800 and the limiting step 210. When the screw rod 300 moves outwardly relative to the first main shaft 8 or the second main shaft 9, the limiting shoulder 310 pushes the end cover 220 to drive the sleeve 200 to slide outwardly; when the screw rod 300 moves inwardly relative to the first main shaft 8 or the second main shaft 9, the limiting shoulder 310 pushes the limiting step 210 to drive the sleeve 200 to slide inwardly.

[0033] It should be noted that, in use, the material roll is mounted on the material supporting arm 400 of the first expansion mechanism 4 or the second expansion mechanism 5, the material blocking A-shaped iron 700 is used to prevent the material roll from swinging left and right, the hand crank 600 is rotated to drive the screw rod 300 to rotate, so as to adjust the connection length of the screw rod 300 with the first main shaft 8 or the second main shaft 9; when the connection length of the screw rod 300 with the first main shaft 8 or the second main shaft 9 is reduced, the screw rod 300 drives the sleeve 200 to slide outwardly through the limiting shoulder 310 cooperating with the end cover 220, the sleeve 200 slides outwardly to pull the material supporting arm 400 through the connecting plate 500, the material supporting arm 400 slides on the disc 100 close to the sleeve 200, i.e. the material supporting arms 400 are contracted; conversely, when the connection length of the screw rod 300 with the first main shaft 8 or the second main shaft 9 is increased, the screw rod 300 drives the sleeve 200 to slide inwardly through the limiting shoulder 310 cooperating with the limiting step 210, the sleeve 200 slides inwardly to push the material supporting arm 400 through the connecting plate 500, the material supporting arm 400 slides on the disc 100 away from the sleeve 200, i.e. the material supporting arms 400 are expanded. The first expansion mechanism 4 and the second expansion mechanism 5 are used to adapt to support material rolls with different inner diameters, so as to ensure that the material roll can be smoothly unwound during unwinding.

[0034] It should be understood that all the above examples are exemplary and not limiting, any modification, equivalent change and modification made by those skilled in the art to the above described specific embodiments are still within the scope of the technical solutions of the present application.

Claims

1. A new type double head uncoiler characterized in that: The base, the column, the machine case, the first expansion and contraction mechanism, the second expansion and contraction mechanism, the driving device and the braking device are included. The column is vertically fixed on the base. The machine case is rotatably installed on the top of the column. The first expansion and contraction mechanism and the second expansion and contraction mechanism are respectively arranged on the left and right sides of the machine case, the first expansion and contraction mechanism and the second expansion and contraction mechanism are respectively provided with the first main shaft and the second main shaft, the first main shaft and the second main shaft are rotatably arranged on the machine case, and the first main shaft and the second main shaft are coaxially connected with the driven sprocket and the brake disc. The driving device includes two reduction motors, two driving sprockets and two chains, the two reduction motors are installed on the top of the machine case and are respectively located above the first main shaft and the second main shaft, the driving sprocket is coaxially connected with the output shaft of the reduction motor, the upper part of the chain is engaged with the driving sprocket, and the lower part of the chain passes through the top of the machine case and is engaged with the driven sprocket. The braking device includes the first air pressure disc brake and the second air pressure disc brake, the first air pressure disc brake and the second air pressure disc brake are installed on the inner side wall of the machine case and are matched with the brake disc on the first main shaft and the second main shaft to brake.

2. The new double head uncoiler as claimed in claim 1, wherein: The first main shaft and the left and right side walls of the machine case, and the second main shaft and the left and right side walls of the machine case are provided with the first bearing.

3. The new double head uncoiler as claimed in claim 1, wherein: The top of the column is vertically fixed with a connecting column, the connecting column is coaxially connected with the second bearing, the connecting column is rotatably connected with the machine case through the second bearing, the second bearing is sleeved with a bearing box, and the connecting column is coaxially connected with the third bearing below the bearing box.

4. The new double head uncoiler as claimed in claim 1, wherein: It also includes a gantry induction frame, the gantry induction frame is located on the discharge side of the first expansion and contraction mechanism or the second expansion and contraction mechanism, the gantry induction frame includes two side plates, at least two cross bars and a roller, the two side plates are vertically fixed on the ground and parallel to each other, the side plates are provided with a chute in the height direction, the cross bars are fixedly connected between the lower parts of the two side plates, one of the cross bars is provided with a photoelectric sensor, the shaft of the roller is threadedly connected with a cover-shaped nut at both ends which passes through the chute of the two side plates, and the cover-shaped nut is used to press the outer side wall of the side plate.

5. The new double head uncoiler as claimed in claim 1, wherein: It also includes two groups of pressing arms, the two groups of pressing arms are respectively arranged on one side of the first expansion and contraction mechanism and the second expansion and contraction mechanism, the pressing arm is arc-shaped, one end of the pressing arm near the first expansion and contraction mechanism or the second expansion and contraction mechanism is rotatably connected with a pressing wheel, and the other end is drivingly connected with an air cylinder, and the pressing arm presses the material through the pressing wheel.

6. The new double head uncoiler as claimed in claim 1, wherein: The first expansion and contraction mechanism and the second expansion and contraction mechanism each comprise a disc, a sleeve, a screw rod, a plurality of material supporting arms and a plurality of connecting plates, the disc and the sleeve are coaxially sleeved at the outer end of the first main shaft or the second main shaft, the inner side wall of the sleeve is provided with a limiting step in the circumferential direction, the closed end of the sleeve is provided with an end cover, one end of the screw rod passes through the end cover and is threadedly connected with the first main shaft or the second main shaft, the other end of the screw rod is fixed with a hand crank, a limiting shoulder is arranged on the screw rod in the circumferential direction between the end cover and the limiting step, each material supporting arm is arranged at intervals around the sleeve axis, one end of the material supporting arm is slidably connected with the disc and can slide up and down, the other end of the material supporting arm is provided with a material blocking A-shaped iron, one end of the connecting plate is hingedly connected with the sleeve, and the other end of the connecting plate is hingedly connected with the material supporting arm.

7. The new double head uncoiler as claimed in claim 6, wherein: The fourth bearing is coaxially connected on the screw rod between the limiting shoulder and the end cover and between the limiting shoulder and the limiting step.

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