A tinned sheet winding apparatus

Abstract

The present application relates to a kind of tinned sheet winding equipment, including winding shaft, winding shaft includes the driving cylinder that can rotate by power mechanism drive, the center of driving cylinder has the central shaft that can be axially moved and with driving cylinder synchronous rotation, the periphery of central shaft is provided with multiple sector plates by central shaft movement to realize outer expansion, after outer expansion, gap along the axial extension of winding shaft is between adjacent sector plates, driving cylinder is located the left end of sector plate, first guide post is arranged on the inner wall of driving cylinder, and is respectively with corresponding sector plate along the radial direction of driving cylinder Guided movement cooperation, the periphery of central shaft is also provided with corresponding to the number of sector plate blocking plate, second guide post is arranged on the inner wall of driving cylinder, and is respectively with corresponding blocking plate along the radial direction of driving cylinder Guided movement cooperation, second guide post passes through the gap.The present application provides a kind of tinned sheet winding equipment, which can avoid the influence of gap on tinned sheet without sleeve.

Description

Technical Field

[0001] This invention relates to a winding device for flexible metal materials, and more particularly to a winding device for tin-plated sheets. Background Technology

[0002] After the tinplate is manufactured, it needs to be wound into rolls by a winding machine for easy storage and transportation.

[0003] Existing winding equipment includes a winding shaft that is driven by a power mechanism and can rotate. The winding shaft includes a central shaft and multi-lobed sector plates arranged around the central shaft. The central shaft can drive each sector plate to expand by axial movement. Then, the central shaft moves in the opposite direction, and each sector plate is retracted to its small diameter state under the action of a return spring.

[0004] In practical use, the central shaft is first moved axially to expand each sector plate. At this time, the outer circumferential surface of each sector plate is on the same circumferential surface. The tin-plated sheet is wound around the circumferential surface formed by each sector plate. Then, the winding shaft is rotated to wind a certain length of tin-plated sheet around the outer circumference of each sector plate. After being rolled up, the central shaft moves axially in the opposite direction, and each sector plate is retracted to the small diameter state under the action of the return spring, which facilitates the separation of the rolled finished product from the winding shaft. Then, the rolled finished product is transferred to the next process.

[0005] The problem with the existing technology is that when the winding shaft is in the expanded state, there will inevitably be a longitudinal gap (along the axis of the winding shaft) between the sector plates. For thick plates, this gap has a small impact, but for tin-plated thin plates with a thickness of only 0.13~0.3mm, this gap will cause very significant quality problems. The main impact is that the tin-plated thin plate at the gap will be squeezed by radial tension and will be concave into the gap, resulting in the deformation and scrap of the tin-plated thin plate.

[0006] In existing technologies, there are some technical means to solve this problem. For example, before each winding, a paper tube is placed around the outer circumference of the winding shaft as the inner core of the winding. When placing the paper tube, alignment is required, which increases the process. Of course, the paper tube is also a consumable, which not only increases the production cost of enterprises but also causes material waste. Another method is to attach a steel cylinder around the outer circumference of the winding shaft before winding, with the steel cylinder serving as a temporary inner core of the winding. After winding, the steel cylinder is separated from the finished product. In this solution, attaching the steel cylinder still increases the process. In addition, after winding, the steel cylinder is not easy to separate from the finished product, which greatly increases the labor intensity of workers and affects production efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a tin-plated sheet winding device that can avoid the impact of gaps on tin-plated sheets without the need for a sleeve.

[0008] The technical solution of the present invention is as follows:

[0009] A tin-plated sheet winding device includes a winding shaft, which includes a drive cylinder that is rotatable by a power mechanism. The drive cylinder has a central shaft that can move axially and rotate synchronously with the drive cylinder. A plurality of sector plates that expand outward by moving the central shaft are arranged around the central shaft. After expansion, there is a gap between adjacent sector plates that extends axially along the winding shaft. The drive cylinder is located at the left end of the sector plates. The inner wall of the drive cylinder is provided with first guide posts that respectively cooperate with the corresponding sector plates to move radially along the drive cylinder. The outer periphery of the central shaft is also provided with sealing plates corresponding to the number of sector plates. The inner wall of the drive cylinder is provided with second guide posts that respectively cooperate with the corresponding sealing plates to move radially along the drive cylinder. The second guide posts pass through the gaps.

[0010] The inner side of the sector plate is provided with a sector plate wedge surface guide structure, and the inner side of the sealing plate is provided with a sealing plate wedge surface guide structure. The central axis is provided with a first wedge surface engagement structure for cooperating with the sector plate wedge surface guide structure and a second wedge surface guide structure for cooperating with the sealing plate wedge surface guide structure. During the movement of the central axis to the right, the wedge surface of the first wedge surface engagement structure and the wedge surface of the sector plate wedge surface guide structure contact first, and the wedge surface of the second wedge surface engagement structure and the wedge surface of the sealing plate wedge surface guide structure contact last, so that the sector plate moves radially outward along the drive cylinder before the sealing plate, and the sealing plate seals the gap. Each sealing plate and each sector plate form a continuous circular structure. During the movement of the central axis to the left, the wedge surface of the second wedge surface engagement structure and the wedge surface of the sealing plate wedge surface guide structure disengage first, and the wedge surface of the first wedge surface engagement structure and the wedge surface of the sector plate wedge surface guide structure disengage last, so that the sealing plate moves radially inward along the drive cylinder to the inner side of the sector plate before the sector plate.

[0011] Furthermore, a sector plate return spring is provided between the inner wall of the drive cylinder and the sector plate to force the sector plate to move radially inward along the drive cylinder. The sector plate return springs are distributed on both circumferential sides corresponding to the first guide post.

[0012] Furthermore, a sealing plate return spring is sleeved on the second guide post to force the sealing plate to move radially inward along the drive cylinder.

[0013] Furthermore, a force transmission sleeve is rotatably mounted on the left end of the central shaft via a thrust bearing. The force transmission sleeve is used to connect with the corresponding hydraulic cylinder to enable the hydraulic cylinder to drive the central shaft to move left and right.

[0014] Furthermore, the adjacent sides of two adjacent sector plates are inclined structures with the spacing gradually increasing from the outside to the inside, and the two sides of the sealing plate are inclined structures adapted to the adjacent sides of two adjacent sector plates.

[0015] Furthermore, the sector-shaped plate wedge guide structure includes a sector-shaped plate wedge block, the inner circumferential surface of which includes a sector-shaped plate wedge surface and a sector-shaped plate plane arranged left and right; the first wedge surface mating structure includes a central axis first wedge block, the outer circumferential surface of which includes a left side plane, a wedge surface, and a right side plane of the first wedge block arranged left and right in sequence; the sealing plate guide structure includes a sealing plate wedge block, the inner circumferential surface of which includes a sealing plate wedge surface and a sealing plate plane arranged left and right; the second wedge surface mating structure includes a central axis second wedge block, the outer circumferential surface of which includes a left side plane, a wedge surface, and a right side plane of the second wedge block arranged left and right in sequence.

[0016] Furthermore, when the sector plate is in a contracted state, the plane of the sector plate is in contact with the right side plane of the first wedge, and the wedge surface of the sector plate is in contact with the wedge surface of the first wedge; the plane of the sealing plate is in contact with the right side plane of the second wedge, and the wedge surface of the sealing plate is spaced apart from the wedge surface of the second wedge; when the sector plate is in an expanded state, the plane of the sector plate is in contact with the left side plane of the first wedge, and the plane of the sealing plate is in contact with the left side plane of the second wedge.

[0017] Furthermore, along the radial direction of the central axis, the height of the second wedge surface is higher than the height of the first wedge surface.

[0018] The beneficial effects of this application are as follows: In this invention, the first guide post can guide the fan-shaped plate to move radially along the drive cylinder; the second guide post can guide the sealing plate to move radially along the drive cylinder. The second guide post is located precisely in the gap between adjacent fan-shaped plates in their contracted state, thus not affecting the contraction of the fan-shaped plates. When the tin-plated sheet needs to be wound, the central axis moves to the right, and the fan-shaped plate is pushed by the central axis before the sealing plate. Therefore, the fan-shaped plate moves outward along the first guide post first, and then the sealing plate is pushed by the central axis. The sealing plate then moves outward along the second guide post, sealing the gap between two adjacent fan-shaped plates. The fan-shaped plate and the sealing plate form a complete circular structure, facilitating the winding of the tin-plated sheet. After winding is completed, the central axis moves to the left, and the sealing plate retracts to the inner side of the fan-shaped plate before the fan-shaped plate, facilitating the unwinding operation of the finished product. In this invention, there is no need for sleeve operation, and the influence of gaps on the winding of the tin-plated sheet can be avoided, which is beneficial to improving winding efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the sector plate in the retracted state in this invention;

[0020] Figure 2 This is a schematic diagram showing the cooperation between the sector plate, the sealing plate, and the drive cylinder when the sector plate is in the retracted state in this invention.

[0021] Figure 3 This is a schematic diagram of the structure of the sector plate in the outward expansion state in this invention;

[0022] Figure 4 This is a schematic diagram showing the cooperation between the sector plate, the sealing plate, and the drive cylinder when the sector plate is in the outward expansion and bonding state in this invention.

[0023] Figure 5 This is a diagram illustrating the interaction process between the central axis, the sector plate, and the sealing plate during the movement of the central axis to the right in this invention.

[0024] In the diagram: 1. Central shaft; 2. Force transmission sleeve; 3. Slewing bearing; 4. Gear ring; 5. Sector plate; 6. Sealing plate; 7. Drive cylinder; 8. Sector plate return spring; 9. First guide post; 11. Sealing plate return spring; 12. Second guide post; 14. Inclined surface structure; 15. First wedge surface mating structure; 16. Sector plate wedge block; 17. First wedge block of the central shaft; 18. Inclined surface of the sector plate; 19. Plane of the sector plate; 21. Left side plane of the first wedge block; 22. Left side plane of the second wedge block; 23. Wedge surface of the second wedge block; 24. Right side plane of the second wedge block; 25. Wedge surface of the first wedge block; 26. Right side plane of the first wedge block; 27. Wedge surface of the sealing plate; 28. Plane of the sealing plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0029] A specific embodiment of a tin-plated sheet winding device of the present invention is as follows: Figures 1-5 As shown.

[0030] The device includes a winding spool, which includes a drive cylinder 7 that is rotatable by a power mechanism. In this embodiment, the drive cylinder 7 is rotatably mounted on a corresponding frame (not shown in the figure) via a slewing bearing 3. A gear ring 4 is provided on the outer periphery of the drive cylinder 7. During use, the power mechanism can transmit torque to the drive cylinder 7 through the gear ring 4, thereby causing the drive cylinder 7 to rotate.

[0031] The left end of the central shaft 1 is rotatably fitted with a force transmission sleeve 2 via a thrust bearing. The force transmission sleeve 2 is used to connect with the corresponding hydraulic cylinder to enable the hydraulic cylinder to drive the central shaft 1 to move left and right.

[0032] The drive cylinder 7 has its axis extending in the left-right direction. The center of the drive cylinder 7 has a central shaft 1 that can move axially and rotate synchronously with the drive cylinder 7. The central shaft 1 is connected to the drive cylinder 7 via a spline to prevent rotation. Four sector plates 5 are arranged around the central shaft 1, which expand outwards by moving the central shaft 1. After expansion, a first gap extending axially around the winding shaft exists between adjacent sector plates. After contraction, a second gap extending axially around the winding shaft exists between adjacent sector plates. The width of the second gap is smaller than the width of the first gap. The drive cylinder 7 is located at the left end of the sector plates 5. All of the above is prior art and will not be described in detail here.

[0033] The inner wall of the drive cylinder 7 is provided with first guide posts 9 that cooperate with the corresponding sector plates 5 to move radially along the drive cylinder 7. Each sector plate 5 corresponds to at least two first guide posts 9, and the first guide posts 9 corresponding to each sector plate are arranged at intervals in the left and right directions.

[0034] A sealing plate 6, corresponding to the number of sector plates, is also provided around the central shaft 1. The sealing plate 6 is located between adjacent sector plates 5. Second guide posts 12, which move radially along the drive cylinder 7 and are respectively guided by the corresponding sealing plate 6, are provided on the inner wall of the drive cylinder 7. Each sealing plate 6 corresponds to at least two second guide posts 12, and the second guide posts 12 corresponding to each sealing plate are spaced apart in the left-right direction. The second guide posts 12 pass through the gap between two adjacent sector plates. It can be considered that two adjacent sector plates 5 are symmetrically arranged on both sides of the corresponding second guide post 12 in the circumferential direction, and the first guide post 9 is located at the center of the first and second gaps.

[0035] A sector plate return spring 8 is provided between the inner wall of the drive cylinder 7 and the sector plate 5 to force the sector plate to move radially inward along the drive cylinder 7. The sector plate return spring 8 is distributed on both sides of the circumference corresponding to the first guide post 9. A sealing plate return spring 11 is sleeved on the second guide post 12 to force the sealing plate 6 to move radially inward along the drive cylinder 7.

[0036] The inner side of the sector plate 5 is provided with a sector plate wedge surface guide structure (sector plate wedge block 16), and the inner side of the sealing plate 6 is provided with a sealing plate wedge surface guide structure (sealing plate wedge block). The central shaft 1 is provided with a first wedge surface mating structure 15 (central shaft first wedge block 17) for mating with the sector plate wedge surface guide structure and a second wedge surface guide structure for mating with the sealing plate wedge surface guide structure. During the movement of the central shaft 1 to the right, the first wedge block wedge surface 25 of the first wedge surface mating structure 15 and the sector plate wedge surface 18 of the sector plate wedge block 16 contact each other first. The second wedge surface 23 of the second wedge block and the sealing plate wedge surface 27 of the sealing plate wedge block of the second wedge surface mating structure come into contact afterward, so that the sector plate 5 moves radially outward along the drive cylinder 7 before the sealing plate 6. The sealing plate 6 seals the gap, and each sealing plate 6 and each sector plate 5 form a continuous circular structure. During the movement of the central axis 1 to the left, the second wedge surface 23 and the sealing plate wedge surface 27 disengage first, and the first wedge surface 25 and the sector plate wedge surface 18 disengage afterward, so that the sealing plate 6 moves radially inward along the drive cylinder 7 to the inner side of the sector plate 5 before the sector plate 5.

[0037] The adjacent sides of two adjacent sector plates 5 are inclined structures 14 with the spacing gradually increasing from the outside to the inside, and the two sides of the sealing plate 6 are inclined structures adapted to the adjacent sides of the two adjacent sector plates.

[0038] In other words, in this invention, when the winding shaft needs to expand outward, the sector plate 5 must move outward along the radial direction of the winding shaft before the sealing plate 6, and the moving stroke of the sealing plate 6 must be greater than the moving stroke of the sector plate 5; when the winding shaft is contracted, the sealing plate 6 must move inward along the radial direction of the winding shaft before the sector plate 5, and the moving stroke of the sealing plate 6 must be greater than the moving stroke of the sector plate 5.

[0039] The above working process is achieved by the following means in this invention: the sector plate wedge guide structure includes a sector plate wedge 16, the inner circumferential surface of the sector plate wedge 16 includes a sector plate wedge surface 18 and a sector plate plane 19 arranged left and right; the first wedge surface mating structure 15 includes a central axis first wedge 17, the outer circumferential surface of the central axis first wedge 17 includes a left side plane 21, a wedge surface 25, and a right side plane 26 arranged left and right in sequence; the sealing plate guide structure includes a sealing plate wedge, the inner circumferential surface of the sealing plate wedge includes a sealing plate wedge surface 27 and a sealing plate plane 28 arranged left and right; the second wedge surface mating structure includes a central axis second wedge, the outer circumferential surface of the central axis second wedge includes a left side plane 22, a wedge surface 23, and a right side plane 24 arranged left and right in sequence.

[0040] In this embodiment, there are multiple sector-shaped wedges 16, which are arranged at intervals along the left and right directions. The number of first wedges 17 on the central axis corresponds to the number of sector-shaped wedges 16. There are multiple sealing wedges, which are arranged at intervals along the left and right directions. The number of second wedges on the central axis corresponds to the number of sealing wedges.

[0041] like Figure 5 As mentioned above, A and A' represent the cooperation status of the sector plate wedge guide structure and the first inclined surface cooperation structure and the cooperation status of the sealing plate wedge guide structure at the same time when the sector plate is in the contracted state; the sector plate plane 19 is in contact with the right side plane 26 of the first wedge block, and the sector plate wedge surface 18 is in contact with the wedge surface 25 of the first wedge block; the sealing plate plane 28 is in contact with the right side plane 24 of the second wedge block, and the sealing plate wedge surface 27 and the wedge surface 23 of the second wedge block are arranged at intervals.

[0042] like Figure 5 As shown, B and B' represent the engagement status of the sector plate wedge guide structure and the first inclined surface engagement structure, and the engagement status of the sealing plate wedge guide structure at the same moment during the expansion process of the sector plate. During this process, the sector plate plane 19 has begun to contact the left side plane 21 of the first wedge block, which means that the sector plate 5 has expanded to the correct position. At this time, the sealing plate wedge surface 27 and the second wedge surface 23 slide in contact and engage, and the sealing plate 6 moves outward.

[0043] As the central axis 1 continues to move to the right, when the sector plate is in an outward expansion state, the sector plate plane 19 contacts the left side plane 21 of the first wedge, and the sealing plate plane 28 contacts the left side plane 22 of the second wedge. Radially upward along the central axis 1, the height of the second wedge surface 23 is higher than the height of the first wedge surface 25.

[0044] When the present invention is used, if it is necessary to expand the tin-plated sheet around the winding shaft, the central shaft 1 moves to the right, and the sector plate 5 moves outward before the sealing plate 6, forming a first gap between adjacent sector plates. Then the sealing plate 6 moves outward to block the first gap. All sector plates 5 and sealing plates 6 together form a complete circular structure, which facilitates the winding of the tin-plated sheet. After the winding is completed, the central shaft 1 moves to the left. Under the action of the corresponding return spring, the sealing plate 6 moves radially inward first, and then the sector plates 5 move radially inward, in a contracted state, which facilitates the unwinding of the winding from the winding shaft.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A tin-plated sheet winding device, comprising a winding shaft, the winding shaft including a drive cylinder rotatable by a power mechanism, the drive cylinder having a central shaft capable of axial movement and rotating synchronously with the drive cylinder, and a plurality of sector-shaped plates arranged around the central shaft to achieve outward expansion through the movement of the central shaft, wherein after outward expansion, a gap extending along the axial direction of the winding shaft is formed between adjacent sector plates, characterized in that: The drive cylinder is located at the left end of the sector plate. The inner wall of the drive cylinder is provided with first guide posts that respectively engage with the corresponding sector plate and move radially along the drive cylinder. A sealing plate corresponding to the number of sector plates is also provided around the central shaft. The inner wall of the drive cylinder is provided with second guide posts that respectively engage with the corresponding sealing plate and move radially along the drive cylinder. The second guide posts pass through the gap. The inner side of the sector plate is provided with a sector plate wedge surface guide structure, and the inner side of the sealing plate is provided with a sealing plate wedge surface guide structure. The central axis is provided with a first wedge surface engagement structure for cooperating with the sector plate wedge surface guide structure and a second wedge surface guide structure for cooperating with the sealing plate wedge surface guide structure. During the movement of the central axis to the right, the wedge surface of the first wedge surface engagement structure and the wedge surface of the sector plate wedge surface guide structure contact first, and the wedge surface of the second wedge surface engagement structure and the wedge surface of the sealing plate wedge surface guide structure contact last, so that the sector plate moves radially outward along the drive cylinder before the sealing plate, and the sealing plate seals the gap. Each sealing plate and each sector plate form a continuous circular structure. During the movement of the central axis to the left, the wedge surface of the second wedge surface engagement structure and the wedge surface of the sealing plate wedge surface guide structure disengage first, and the wedge surface of the first wedge surface engagement structure and the wedge surface of the sector plate wedge surface guide structure disengage last, so that the sealing plate moves radially inward along the drive cylinder to the inner side of the sector plate before the sector plate.

2. The tin-plated sheet winding equipment according to claim 1, characterized in that, A sector plate return spring is provided between the inner wall of the drive cylinder and the sector plate to force the sector plate to move radially inward along the drive cylinder. The sector plate return springs are distributed on both circumferential sides corresponding to the first guide post.

3. The tin-plated sheet winding equipment according to claim 1, characterized in that: A sealing plate return spring is sleeved on the second guide post to force the sealing plate to move radially inward along the drive cylinder.

4. The tin-plated sheet winding equipment according to claim 1, characterized in that: The left end of the central shaft is rotatably fitted with a force transmission sleeve via a thrust bearing. The force transmission sleeve is used to connect with the corresponding hydraulic cylinder to enable the hydraulic cylinder to drive the central shaft to move left and right.

5. The tin-plated sheet winding equipment according to claim 1, characterized in that: The adjacent sides of two adjacent sector plates are inclined structures with the spacing gradually increasing from the outside to the inside, and the two sides of the sealing plate are inclined structures adapted to the adjacent sides of the two adjacent sector plates.

6. The tin-plated sheet winding equipment according to any one of claims 1 to 5, characterized in that: The sector-shaped wedge guide structure includes a sector-shaped wedge block. The inner circumferential surface of the sector-shaped wedge block includes a sector-shaped wedge surface and a sector-shaped plane arranged left and right. The first wedge mating structure includes a central axis first wedge block. The outer circumferential surface of the central axis first wedge block includes a left-side plane, a wedge surface, and a right-side plane of the first wedge block arranged left and right in sequence. The sealing plate guide structure includes a sealing plate wedge block. The inner circumferential surface of the sealing plate wedge block includes a sealing plate wedge surface and a sealing plate plane arranged left and right. The second wedge mating structure includes a central axis second wedge block. The outer circumferential surface of the central axis second wedge block includes a left-side plane, a wedge surface, and a right-side plane of the second wedge block arranged left and right in sequence.

7. The tin-plated sheet winding equipment according to claim 6, characterized in that: When the sector plate is in the contracted state, the plane of the sector plate is in contact with the right side plane of the first wedge, and the wedge surface of the sector plate is in contact with the wedge surface of the first wedge; the plane of the sealing plate is in contact with the right side plane of the second wedge, and the wedge surface of the sealing plate is spaced apart from the wedge surface of the second wedge; when the sector plate is in the outward expansion state, the plane of the sector plate is in contact with the left side plane of the first wedge, and the plane of the sealing plate is in contact with the left side plane of the second wedge.

8. The tin-plated sheet winding equipment according to claim 6, characterized in that: Radially along the central axis, the height of the second wedge surface is higher than that of the first wedge surface.

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