Shaft end limiting structure and material cylinder

Abstract

This application relates to a shaft end limiting structure and a material cylinder. The shaft end limiting structure includes an insert and a stop plate. The insert includes a cylinder body and a locking block. The cylinder body is inserted into a roll, and the locking block protrudes from the outer periphery of the cylinder body for detachably engaging with the roll. The insert is an elastic body. The stop plate is located on the outer periphery of the insert end and extends circumferentially around the central axis of the insert. Because the locking block protrudes from the outer periphery of the cylinder, after the cylinder body is inserted into the roll, the locking block can engage with the inner wall of the roll, thus fixing the shaft end limiting structure to the roll. In this way, the stop plate located on the outer periphery of the insert can be fixed relative to the roll to limit the position of the material wound on the roll. In this application, because the locking block and the roll are fixedly connected by a locking mechanism, and the contact area is located inside the roll, it hardly affects the inherent curved shape of the outer periphery of the roll, allowing the roll to wind material in the desired shape and reducing the risk of material damage.

Description

Technical Field

[0001] This application relates to the field of material winding and supply devices, and in particular to a shaft end limiting structure and a material cylinder. Background Technology

[0002] In current processing and manufacturing fields, long strips and sheet-like materials are typically wound into spools for easy storage and transportation. Traditional spools usually consist of separate end caps and a roll, which are machined separately and then assembled, often using a nail gun. However, nailing the end cap and roll together with a nail gun can easily create localized depressions or protrusions on the roll surface, disrupting its inherent circumferential shape. During material winding, these depressions or protrusions cause uneven stress distribution, leading to unexpected deformation or damage such as wrinkles or tears, affecting material quality. Utility Model Content

[0003] Therefore, it is necessary to provide a shaft end limiting structure and a material cylinder to address the above problems.

[0004] This application provides a shaft end limiting structure, which includes an insert and a stop plate. The insert includes a cylinder and a locking block. The cylinder is used to be inserted into a reel. The locking block protrudes from the outer periphery of the cylinder and is used to detachably engage with the reel. The insert is an elastic body. The stop plate is located in the outer periphery of the end of the insert and extends in a circumferential direction around the central axis of the insert.

[0005] In one embodiment, there are multiple card blocks, which are spaced apart in the circumferential direction of the central axis of the insert.

[0006] In one embodiment, a cutting hole is provided on the cylinder body along the central axis of the insert, on the side of the insert near the stop plate, and the cutting hole penetrates the cylinder body.

[0007] In one embodiment, there are multiple cutting holes, and each of the multiple cutting holes corresponds to a multiple of the card blocks.

[0008] In one embodiment, the insert further includes a support plate disposed within the cylinder body. The support plate abuts against at least two opposing regions on the inner wall of the cylinder body, and the support plate and the stop plate are located at different ends of the cylinder body.

[0009] In one embodiment, the support plate is arranged in a circumferential direction around the central axis of the insert.

[0010] In one embodiment, the support plate has a through hole.

[0011] In one embodiment, the support plate includes a plate body and a reinforcing sleeve. Along the central axis of the insert, the size of the reinforcing sleeve is larger than the size of the plate body, and the connecting hole is formed inside the reinforcing sleeve.

[0012] In one embodiment, the maximum thickness of the locking block is h in the direction perpendicular to the central axis of the insert, and the outer diameter of the cylinder is d, where 0.01d≤h≤0.05d.

[0013] This application also provides a material cylinder, which includes a roll and a shaft end limiting structure as described above, the shaft end limiting structure being installed at the end of the roll.

[0014] In the aforementioned shaft end limiting structure, the locking block protrudes from the outer periphery of the cylinder. Therefore, after the cylinder is inserted into the drum, the locking block can engage with the inner wall of the drum, fixing the shaft end limiting structure to the drum as a whole. In this way, the stop plate located on the outer periphery of the cylinder can be fixed relative to the drum, thus limiting the position of the material wound on the drum. In this application, because the locking block and the drum are fixedly connected by a locking mechanism, and the contact area is located inside the drum, it hardly affects the inherent curved shape of the drum's outer periphery, allowing the drum to wind the material in the desired shape and reducing the risk of material damage.

[0015] It should be noted that since the insert itself is an elastic body, the clamping force is mainly provided by the slight deformation of the insert when the clamping block engages with the drum, which can further reduce the probability of changes in the inherent shape of the drum.

[0016] Furthermore, the insertion of the cylinder body inside the drum also provides support for the drum, reducing the likelihood of the drum collapsing due to the force exerted on it when the material is wound around it. In other words, this design improves the structural stability of the drum. Attached Figure Description

[0017] Figure 1 This is an isometric schematic diagram of a shaft end limiting structure provided in an embodiment of this application.

[0018] Figure 2 for Figure 1 The side view of the shaft end limiting structure shown.

[0019] Figure 3 for Figure 1 The front view of the shaft end limiting structure shown.

[0020] Figure 4 for Figure 3 The cross-sectional view of the shaft end limiting structure shown along line AA.

[0021] Reference numerals: 10, shaft end limiting structure; 11, insert; 12, stop plate; 100, cylinder; 101, cutting hole; 102, first end; 103, second end; 200, locking block; 300, support plate; 301, connecting hole; 310, plate; 320, reinforcing sleeve; O, central axis. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0028] The material cylinder provided in one embodiment of this application includes a shaft end limiting structure and a roll (not shown in the figure, the same below). The shaft end limiting structure is installed at the end of the roll. The roll is used for winding materials. The shaft end limiting structure located at its end can limit the position of the materials to reduce the risk of materials falling off the roll.

[0029] Furthermore, the material drum may include two shaft end limiting structures, which are respectively installed at opposite ends of the drum. Of course, in other embodiments, the drum may be configured with a shaft end limiting structure installed at only one end. In this case, the other end of the material drum can be used to fix and connect to a wall, bracket, or other supporting structure.

[0030] Please see Figure 1 and Figure 2 , Figure 1 This paper shows a schematic diagram of the shaft end limiting structure provided in one embodiment of the present application. Figure 2 for Figure 1 The image shows a side view of the shaft end limiting structure. An embodiment of this application provides a shaft end limiting structure 10 including an insert 11 and a stop disc 12. The insert 11 is inserted into a reel, and the stop disc 12 is located on the outer periphery of the end of the insert 11 and extends circumferentially around the central axis O of the insert 11 to limit the spatial position of the material wound on the reel. The insert 11 includes a cylinder 100 and a locking block 200. The cylinder 100 is inserted into the reel, and the locking block 200 protrudes from the outer periphery of the cylinder 100 for detachably engaging with the reel. The insert 11 is an elastic body.

[0031] In the aforementioned shaft end limiting structure 10, the locking block 200 protrudes from the outer periphery of the cylinder 100. Therefore, after the cylinder 100 is inserted into the drum, the locking block 200 can engage with the inner wall of the drum, thus fixing the shaft end limiting structure 10 as a whole to the drum. In this way, the stop disc 12 located on the outer periphery of the insert 11 can be fixed relative to the drum to limit the position of the material wound on the drum. In this application, since the locking block 200 is fixedly connected to the drum by a locking mechanism, and the contact area is located inside the drum, it hardly affects the inherent curved shape of the outer periphery of the drum, allowing the drum to wind the material in the desired shape and reducing the risk of material damage.

[0032] It should be noted that since the insert 11 itself is an elastic body, the clamping force is mainly provided by the slight deformation of the insert 11 when the locking block 200 engages with the drum, which can further reduce the probability of changes in the inherent shape of the drum.

[0033] Furthermore, the cylinder 100, inserted into the drum, also provides support to the drum, reducing the likelihood of the drum collapsing due to the force exerted on it when the material is wound around it. In other words, this arrangement improves the structural stability of the drum.

[0034] Furthermore, the locking block 200 is detachably engaged with the drum, so the shaft end limiting structure 10 can be retrieved by separating the locking block 200 from the drum. On the other hand, the drum can be used to wind materials of different sizes or types by disassembling and replacing shaft end limiting structures 10 of different sizes.

[0035] As one example, the shaft end limiting structure 10 can be formed entirely by injection molding, meaning that the shaft end limiting structure 10 can be configured as a plastic part, thus possessing a certain degree of elasticity. Of course, the shaft end limiting structure 10 can also be configured as other elastic materials, and this application does not limit this.

[0036] Please see Figure 3 Combined Figure 1 and Figure 2 In one embodiment, there are multiple locking blocks 200, which are spaced apart in the circumferential direction around the central axis O of the insert cylinder 11. Thus, the multiple locking blocks 200 can cooperate to clamp and fix the cylinder, improving the stability of the engagement. Furthermore, since the multiple locking blocks 200 are spaced apart in the circumferential direction around the central axis O of the insert cylinder 11, each locking block 200 can collectively support the inner circumferential surface of the cylinder, improving the structural stability of the cylinder.

[0037] Furthermore, multiple locking blocks 200 are evenly spaced in the circumferential direction around the central axis O of the insert 11.

[0038] Please see Figure 4 Combined Figure 2In one embodiment, a cutting hole 101 is provided on the cylinder 100 along the central axis O of the insert 11, on the side of the insert 200 near the stop plate 12. The cutting hole 101 penetrates the cylinder 100. By configuring the through cutting hole 101, the structural strength of the area on the cylinder 100 near the stop plate 12 of the insert 200 can be weakened, so that the area where the insert 200 is located can be flipped and deformed. This relatively reduces the squeezing force on the inner wall of the drum when the insert 200 is engaged with the drum, and reduces the risk of drum deformation.

[0039] Correspondingly, there are multiple cutting holes 101, and each cutting hole 101 corresponds to a multiple locking block 200 to weaken the structural strength of the area on the side of the cylinder 100 near the stop plate 12 of the locking block 200, so that the corresponding locking block 200 can be easily deformed.

[0040] Please see Figure 2 In one embodiment, the cylinder 100 includes a first end 102 and a second end 103. The first end 102 is used for insertion into a drum, and a stop plate 12 is disposed at the second end 103. A locking block 200 is disposed in the outer peripheral wall of the cylinder 100 in a region relatively close to the first end 102, so as to engage with the inner wall of the drum after the cylinder 100 is inserted into the drum. Correspondingly, a cutting hole 101 is formed in a region relatively close to the second end 103.

[0041] Please see Figure 3 In one embodiment, the cylinder 100 can be constructed as a cylinder, that is, the cylinder 100 has a circular cross-section. Of course, in other embodiments, the cylinder 100 can also be constructed as a cross-section with other shapes, such as rectangular and triangular. The following description uses the example of the cylinder 100 being constructed as a cylinder.

[0042] Please see Figure 3 and Figure 4 In one embodiment, the maximum thickness of the locking block 200 is h in the direction (i.e., radially) of the central axis O of the vertical insert 11, and the outer diameter of the cylinder 100 is d, where 0.01d ≤ h ≤ 0.05d. It is understood that the outer diameter d of the cylinder 100 is adapted to the diameter of the inner hole of the drum; the two can be equal or have only a small assembly tolerance. This arrangement allows for a moderate thickness of the locking block 200, balancing the stability of the locking block 200 in engagement with the drum and the risk of deformation of the drum due to the pressure from the locking block 200. As one example, the maximum thickness h of the locking block 200 can be 0.01d, 0.015d, 0.02d, 0.025d, 0.03d, 0.035d, 0.04d, 0.045d, and 0.05d. Of course, depending on the actual inner diameter of the drum, the thickness h of the clamping block 200 can be configured to be less than 0.01d or greater than 0.05d.

[0043] Please see Figure 4 Understandably, the thickness of the locking block 200 gradually increases in a wedge shape along the central axis O of the insert 11 from the first end 102 to the second end 103, so as to engage with the drum. The maximum thickness of the locking block 200 is located on the side closer to the second end 103.

[0044] Please see Figure 4 Combined Figure 1 and Figure 3 In one embodiment, the insert 11 further includes a support plate 300, which is disposed within the cylinder 100, and the support plate 300 and the stop plate 12 are located at different ends of the cylinder 100. That is, the support plate 300 is located at the first end 102, and the support plate 300 is located inside the drum when the shaft end limiting structure 10 is installed on the drum. The support plate 300 abuts against at least two opposing areas in the inner wall of the cylinder 100. Thus, on the one hand, the support plate 300 can further improve the structural stability of the shaft end limiting structure 10, so that the locking block 200 can be stably engaged with the inner wall of the drum. On the other hand, since the support plate 300 is located inside the cylinder 100, and the support plate 300 is located inside the drum during insertion, the supporting effect of the support plate 300 will also be transmitted to the drum through the cylinder 100, thereby improving the structural stability of the drum and reducing the risk of drum collapse.

[0045] As one example, the support plate 300 can be constructed as a strip plate, which abuts against two opposing regions on the inner wall of the cylinder 100 along the radial direction of the cylinder 100, providing support for the cylinder 100.

[0046] As another example, the support plate 300 extends in the circumferential direction around the central axis O of the insert 11 to fully support the inner wall of the cylinder 100 and improve the overall support function of the support plate 300.

[0047] Please see Figure 3 and Figure 4 In one embodiment, the support plate 300 has a through hole 301. Thus, by passing through the through hole 301, both opposite sides of the support plate 300 can be simultaneously contacted to grip the support plate 300, thereby facilitating the engagement and disengagement of the shaft end limiting structure 10 with the drum. In other words, in this embodiment, the support plate 300 is constructed as an annular plate.

[0048] Please see Figure 4 Combined Figure 1In one embodiment, the support plate 300 includes a plate body 310 and a reinforcing sleeve 320, with the reinforcing sleeve 320 disposed on the plate body 310. Along the central axis O of the insert 11, the size of the reinforcing sleeve 320 is larger than the size of the plate body 310, and a connecting hole 301 is formed within the reinforcing sleeve 320. Thus, by configuring the reinforcing sleeve 320, the structural strength at the connecting hole 301 is enhanced, thereby facilitating the gripping of the reinforcing sleeve 320 and the plate body 310 in the area surrounding the reinforcing sleeve 320, while allowing the operating shaft end limiting structure 10 to engage and disengage from the drum. Furthermore, the axial dimension of the reinforcing sleeve 320 is larger than the axial dimension of the plate body 310, which strengthens the structural strength at the connecting hole 301, making it less prone to collapse and resulting in a more stable structure.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shaft end limiting structure, characterized in that, The shaft end limiting structure includes: The insert includes a cylinder body, a locking block, and a support plate. The cylinder body is used to be inserted into a reel. The locking block protrudes from the outer periphery of the cylinder body and is used to detachably engage with the reel. The insert is an elastic body. The support plate is located inside the cylinder body and abuts against at least two opposing areas on the inner wall of the cylinder body. A stop plate is provided in the outer peripheral region of the end of the insert, and the stop plate extends in a circumferential direction around the central axis of the insert. The support plate and the stop plate are located at different ends of the cylinder.

2. The shaft end limiting structure according to claim 1, characterized in that, The number of the locking blocks is multiple, and the multiple locking blocks are arranged at intervals in the circumferential direction of the central axis of the insert.

3. The shaft end limiting structure according to claim 1, characterized in that, Along the central axis of the insert, a cutting hole is provided on the cylinder body in the area of ​​the side of the locking block near the stop plate, and the cutting hole penetrates the cylinder body.

4. The shaft end limiting structure according to claim 3, characterized in that, The number of the cutting holes is multiple, and each of the multiple cutting holes corresponds to a multiple of the card blocks.

5. The shaft end limiting structure according to claim 1, characterized in that, The support plate is constructed as a strip plate, and the support plate abuts against two opposing regions on the inner wall of the cylinder along the radial direction of the cylinder.

6. The shaft end limiting structure according to claim 1, characterized in that, The support plate extends circumferentially around the central axis of the insert.

7. The shaft end limiting structure according to claim 1, characterized in that, The support plate has a through hole.

8. The shaft end limiting structure according to claim 7, characterized in that, The support plate includes a plate body and a reinforcing sleeve. Along the central axis of the insert, the size of the reinforcing sleeve is larger than the size of the plate body, and the connecting hole is formed inside the reinforcing sleeve.

9. The shaft end limiting structure according to claim 1, characterized in that, In the direction perpendicular to the central axis of the insert, the maximum thickness of the locking block is h, and the outer diameter of the cylinder is d, where 0.01d≤h≤0.05d.

10. A material barrel, characterized in that, The material cylinder includes a roll and a shaft end limiting structure as described in any one of claims 1 to 9, wherein the shaft end limiting structure is installed at the end of the roll.

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