Double-end uncoiler

Abstract

The utility model relates to the technical field of uncoilers, in particular to a double-end uncoiler which comprises a bottom frame and a double-end uncoiler body arranged above the bottom frame, the double-end uncoiler body comprises two sets of uncoiler structures, the positions of the two sets of uncoiler structures can be exchanged above the bottom frame, and the double-end uncoiler further comprises a balance weight structure. The balance weight structure comprises two balance weight arms symmetrically arranged on the two sides of the two uncoiler structures, one end of each balance weight arm is rotationally connected with the middle position of one side of the bottom frame, a balance weight block is arranged at the other end of each balance weight arm, and an angle adjusting mechanism synchronously driving the two balance weight arms to rotate is arranged in the middle position of the bottom frame. The utility model has a counterweight function, avoids the problem of integral inclination during single-side feeding and uncoiling, and further ensures the uncoiling precision.

Description

Technical Field

[0001] The utility model relates to the technical field of decoilers, in particular to a double-head decoiler. Background Art

[0002] The decoiler is one of the essential important devices in the welded pipe production line. Its functions are, one is to support the steel coil by tightening the inner hole of the steel coil; the other is to feed the head of the steel strip into the leveler through rotation in cooperation with the straightener. Generally, in order to improve efficiency, it is set as double-head and the positions can be swapped. However, since the coil material is generally installed on one side first, the overall center shifts towards the side where the coil material is installed, which is likely to cause the overall skew. At the same time, as the decoiling progresses, the overall skew will slowly ease. Such a problem is likely to cause errors in the decoiling accuracy. Therefore, a double-head decoiler with a counterweight function is designed to avoid the problem of overall inclination during single-side loading and decoiling, and further ensure the decoiling accuracy. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a double-head decoiler with a counterweight function, which can avoid the problem of overall inclination during single-side loading and decoiling, and further ensure the decoiling accuracy.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solution: A double-head decoiler includes a chassis and a double-head decoiler body arranged above the chassis. The double-head decoiler body includes two sets of decoiler structures, and the two sets of decoiler structures can be swapped in position above the chassis. It further includes a counterweight structure. The counterweight structure includes two counterweight arms symmetrically arranged on both sides of the two sets of decoiler structures. One end of the counterweight arm is rotationally connected to the middle position of one side of the chassis, and a counterweight block is arranged at the other end of the counterweight arm. An angle adjustment mechanism for synchronously driving the two counterweight arms to rotate is arranged at the middle position of the chassis.

[0007] Preferably, it further includes an extension arm mechanism. The extension arm mechanism includes a radial adjustment drive cylinder fixedly installed on the counterweight arm. The counterweight block is fixedly installed at the output end of the radial adjustment drive cylinder, and a guide rod that is in guiding sliding fit with the counterweight arm is fixedly installed on the counterweight block.

[0008] Preferably, the angle adjustment mechanism includes a sliding frame horizontally slidably connected between the two counterweight arms through a rotation adjustment drive cylinder, the rotation adjustment drive cylinder is fixedly mounted on the base frame, racks are fixedly mounted on both sides of the sliding frame, auxiliary shafts rotatably connected to the base frame are arranged on both sides of the sliding frame, a rotating gear meshing with the rack on the same side is fixedly mounted on the auxiliary shaft, and the rotating gear is connected to the counterweight arm on the same side through a synchronous belt transmission.

[0009] Preferably, a universal wheel is installed at one end of the bottom of the counterweight arm away from the base frame.

[0010] Preferably, the double-head uncoiler body also includes a fixed frame supporting two groups of uncoiler structures, and a rotation drive mechanism for driving the fixed frame to rotate is arranged on the base frame, and the rotation drive mechanism includes a supporting frame fixedly installed above the base frame, and the supporting frame is rotatably connected with a swap gear through a swap drive motor, and an inner gear ring meshing with the swap gear is fixedly installed at the bottom of the fixed frame, and the external rotation of the inner gear ring is matched with an outer limit ring fixedly connected to the supporting frame.

[0011] Preferably, the support bracket also includes a positioning mechanism, which includes a positioning drive cylinder and a positioning column. The positioning drive cylinder is fixedly installed on one side of the support bracket, and one end of the positioning column is fixedly installed on the top output end of the positioning drive cylinder. The support bracket is also fixedly installed with a guide sleeve that slides with the positioning column, and the fixed frame is symmetrically provided with two positioning holes that are compatible with the positioning column.

[0012] Preferably, the uncoiler structure includes a tensioning shaft rotatably connected to one side of a fixed frame, and the fixed frame also includes a driving unit for driving the tensioning shaft to rotate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a double-head uncoiler, which has the following beneficial effects:

[0015] The double-head uncoiler, through the counterweight mechanism, can solve the problem of overall tilting during single-sided loading and unwinding. Through the angle adjustment mechanism, two counterweight arms and the counterweight blocks arranged at the ends of the counterweight arms, it can rotate accordingly with the weight change of single-sided weight increase to ensure the overall stability, avoid the problem of overall tilting, and ensure the unwinding stability and unwinding accuracy. The double-head uncoiler has a counterweight function to avoid the problem of overall tilting during single-sided loading and unwinding, and further ensure the unwinding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 Structural schematic diagram of another perspective of the whole of the present utility model;

[0018] Figure 3 Structural schematic diagram of the cooperation between the chassis and the counterweight structure of the present utility model;

[0019] Figure 4 Structural schematic diagram of the disassembled counterweight structure of the present utility model;

[0020] Figure 5 Structural schematic diagram of the disassembly of the cooperation between the chassis and the double - head decoiler body of the present utility model;

[0021] Figure 6 Structural schematic diagram of another perspective of the disassembly of the cooperation between the chassis and the double - head decoiler body of the present utility model.

[0022] Reference numerals in the drawings: 1. Chassis; 2. Fixed frame; 3. Tensioning shaft; 4. Outer limit ring; 5. Internal gear ring; 6. Reversing gear; 7. Reversing drive motor; 8. Positioning column; 9. Positioning hole; 10. Guide sleeve; 11. Positioning drive cylinder; 12. Support bracket; 13. Counterweight arm; 14. Radial adjustment drive cylinder; 15. Counterweight block; 16. Universal wheel; 17. Guide rod; 18. Guide post; 19. Counterweight weight; 20. Rotating gear; 21. Rack; 22. Slide frame; 23. Synchronous belt; 24. Rotating adjustment drive cylinder. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment:

[0025] Please refer to Figures 1-6 , a double - head decoiler, including a chassis 1 and a double - head decoiler body arranged above the chassis 1. The double - head decoiler body includes two sets of decoiler structures. The two sets of decoiler structures can be position - swapped above the chassis 1. It further includes a counterweight structure. The counterweight structure includes two sets of counterweight arms 13 symmetrically arranged on both sides of the two sets of decoiler structures. One end of the counterweight arm 13 is rotatably connected to the middle position on one side of the chassis 1, and a counterweight block 15 is arranged at the other end of the counterweight arm 13. An angle adjustment mechanism for synchronously driving the two counterweight arms 13 to rotate is arranged at the middle position of the chassis 1.

[0026] Specifically, it also includes an arm extension mechanism, which includes a radial adjustment drive cylinder 14 fixedly mounted on the counterweight arm 13, a counterweight block 15 fixedly mounted at the output end of the radial adjustment drive cylinder 14, and a guide rod 17 fixedly mounted on the counterweight block 15, which is slidingly matched with the counterweight arm 13. Through the counterweight arm 13, it is convenient to push the counterweight block 15 away from the counterweight arm 13, so that the length of the counterweight arm 13 can be extended accordingly, thereby increasing the range of the counterweight. Through the cooperation of the guide rod 17 and the counterweight arm 13, it is convenient to guide the counterweight block 15, increase the stability of the counterweight block 15, and avoid the output end of the counterweight arm 13 being broken when the counterweight block 15 extends out of the counterweight arm 13. Further, it also includes a counterweight weight 19, and a plurality of guide columns 18 fixedly mounted on the counterweight block 15, which are slidingly matched with the counterweight weight 19. Through the counterweight weight 19, it is convenient to add counterweight to the counterweight block 15, further increasing the range of the counterweight.

[0027] Specifically, the angle adjustment mechanism includes a sliding frame 22 that is horizontally slidably connected between the two counterweight arms 13 through a rotation adjustment drive cylinder 24. The rotation adjustment drive cylinder 24 is fixedly installed on the base frame 1. Racks 21 are fixedly installed on both sides of the sliding frame 22. Auxiliary shafts that are rotatably connected to the base frame 1 are provided on both sides of the sliding frame 22. A rotating gear 20 that meshes with the rack 21 on the same side is fixedly installed on the auxiliary shaft. The rotating gear 20 and the counterweight arm 13 on the same side are connected through a synchronous belt 23. The rotation adjustment drive cylinder 24 is used to conveniently drive the sliding frame 22 to move horizontally. The rotating gears 20 on both sides are driven to rotate by meshing the racks 21 on both sides with the rotating gears 20. With the reciprocating extension and contraction of the output end of the rotation adjustment drive cylinder 24, the two rotating gears 20 are rotated to both sides or to the middle at the same time by meshing the racks 21 with the rotating gears 20. The two counterweight arms 13 can be driven to rotate to both sides or to the middle by the cooperation of the synchronous belt 23.

[0028] Specifically, a universal wheel 16 is installed at one end of the bottom of the counterweight arm 13 away from the base frame 1. The arrangement of the universal wheel 16 increases the stability of the overall structure of the counterweight arm 13, and avoids the situation where the counterweight arm 13 is broken due to the side weight of the counterweight block 15, so that the counterweight structure ensures both the counterweight function and the overall stability of the counterweight structure.

[0029] Specifically, the double-head uncoiler body further includes a fixing frame 2 that supports two sets of uncoiler structures. A rotary drive mechanism for driving the rotation of the fixing frame 2 is provided on the base frame 1. The rotary drive mechanism includes a supporting bracket 12 fixedly installed above the base frame 1. A reversing gear 6 is rotatably connected to the supporting bracket 12 through a reversing drive motor 7. An internal gear ring 5 meshing with the reversing gear 6 is fixedly installed at the bottom of the fixing frame 2. An outer limiting ring 4 fixedly connected to the supporting bracket 12 is rotatably fitted on the outside of the internal gear ring 5. By starting the reversing drive motor 7, the output shaft of the reversing drive motor 7 rotates clockwise or counterclockwise, which is convenient for driving the reversing gear 6 to rotate clockwise or counterclockwise. Through the meshing of the reversing gear 6 and the internal gear ring 5, the double-head uncoiler body is driven to rotate, so that the two sets of uncoiler structures can be position-swapped.

[0030] Specifically, the supporting bracket 12 further includes a positioning mechanism. The positioning mechanism includes a positioning drive cylinder 11 and a positioning column 8. The positioning drive cylinder 11 is fixedly installed on one side of the supporting bracket 12. One end of the positioning column 8 is fixedly installed at the top output end of the positioning drive cylinder 11. A guide sleeve 10 that is slidably and guidingly fitted with the positioning column 8 is also fixedly installed on the supporting bracket 12. Two positioning holes 9 adapted to the positioning column 8 are symmetrically formed on the fixing frame 2. Through the positioning mechanism, it is convenient to position after the two sets of uncoiler structures are position-swapped, and to avoid the situation of position rotation.

[0031] Specifically, the uncoiler structure includes a tensioning shaft 3 rotatably connected to one side of the fixing frame 2. The fixing frame 2 further includes a drive unit for driving the rotation of the tensioning shaft 3. Through the drive unit, it is convenient to drive the rotation of the tensioning shaft 3. The drive unit can be set as a drive motor or a drive mode of a drive motor and a belt and pulley.

[0032] During use, when installing the coil material on one side of the uncoiler structure, the two

[13] can be rotated to the other side of the uncoiler structure through the angle adjustment mechanism, so as to balance the gravity on one side. Then, as the uncoiling progresses, the two

[13] can be slowly rotated towards both sides through the angle adjustment mechanism, so as to alleviate the problem of unilateral weight reduction caused by unwinding and maintain the stability and accuracy of uncoiling.

[0033] It should be noted that "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily each embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining an embodiment to describe a specific feature, structure or characteristic, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0034] It should be readily understood that the terms "on", "above", and "over" in this disclosure should be construed in the broadest manner such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0035] In addition, for ease of explanation, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in the text may be interpreted accordingly as well.

[0036] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A double-head uncoiler, characterized in that: The invention comprises a base frame (1) and a double-head uncoiler body arranged above the base frame (1), wherein the double-head uncoiler body comprises two groups of uncoiler structures, wherein the two groups of uncoiler structures can be swapped in position above the base frame (1), and further comprises a counterweight structure, wherein the counterweight structure comprises two groups of counterweight arms (13) symmetrically arranged on both sides of the two groups of uncoiler structures, wherein one end of the counterweight arm (13) is rotatably connected to the middle position of one side of the base frame (1), and the other end of the counterweight arm (13) is provided with a counterweight block (15), and an angle adjustment mechanism for synchronously driving the two counterweight arms (13) to rotate is provided at the middle position of the base frame (1).

2. The double-head decoiler according to claim 1, characterized in that: The invention also comprises an arm extension mechanism, wherein the arm extension mechanism comprises a radial adjustment drive cylinder (14) fixedly mounted on the counterweight arm (13), the counterweight block (15) fixedly mounted on the output end of the radial adjustment drive cylinder (14), and a guide rod (17) fixedly mounted on the counterweight block (15) and slidingly matched with the counterweight arm (13).

3. The double-head decoiler according to claim 2, characterized in that: The angle adjustment mechanism comprises a slide frame (22) horizontally slidably connected between two counterweight arms (13) via a rotary adjustment drive cylinder (24); the rotary adjustment drive cylinder (24) is fixedly mounted on a base frame (1); racks (21) are fixedly mounted on both sides of the slide frame (22); auxiliary shafts rotatably connected to the base frame (1) are arranged on both sides of the slide frame (22); a rotating gear (20) meshing with the rack (21) on the same side is fixedly mounted on the auxiliary shaft; the rotating gear (20) is connected to the counterweight arm (13) on the same side via a synchronous belt (23).

4. The double-head decoiler according to claim 3, characterized in that: A universal wheel (16) is installed at one end of the bottom of the counterweight arm (13) away from the base frame (1).

5. The double-head decoiler according to claim 4, characterized in that: The double-head uncoiler body also includes a fixed frame (2) supporting two groups of uncoiler structures, and a rotation drive mechanism for driving the fixed frame (2) to rotate is arranged on the base frame (1), and the rotation drive mechanism includes a support frame (12) fixedly installed above the base frame (1), and the support frame (12) is rotatably connected to a swap gear (6) through a swap drive motor (7), and an internal gear ring (5) meshing with the swap gear (6) is fixedly installed at the bottom of the fixed frame (2), and the outer part of the internal gear ring (5) is rotatably matched with an outer limit ring (4) fixedly connected to the support frame (12).

6. The double-head decoiler according to claim 5, characterized in that: The support frame (12) also includes a positioning mechanism, which includes a positioning drive cylinder (11) and a positioning column (8). The positioning drive cylinder (11) is fixedly mounted on one side of the support frame (12), and one end of the positioning column (8) is fixedly mounted on the top output end of the positioning drive cylinder (11). The support frame (12) is also fixedly mounted with a guide sleeve (10) that is slidingly matched with the positioning column (8). Two positioning holes (9) that are compatible with the positioning column (8) are symmetrically provided on the fixed frame (2).

7. The double-head decoiler according to claim 6, characterized in that: The uncoiler structure comprises a tensioning shaft (3) rotatably connected to one side of a fixed frame (2), and the fixed frame (2) also comprises a driving unit for driving the tensioning shaft (3) to rotate.

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