End cover of coating reel

Abstract

The utility model provides an end cover of a coating winding drum, which comprises an outer drum, and a fixing part for fixing the end cover on the coating winding drum is arranged on the outer drum; the inner cylinder is coaxially arranged in the outer cylinder; the connecting part is used for connecting the outer barrel and the inner barrel, an assembling space used for being assembled with an aluminum pipe of the coating winding drum is formed between the outer barrel and the inner barrel, and a limiting part used for limiting rotation of the aluminum pipe of the coating winding drum is arranged in the assembling space. According to the end cover of the coating reel, the outer barrel and the inner barrel of the end cover of the coating reel are combined together, so that the coating reel is convenient to assemble, the operation is simple, and the assembly efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of coating reels, in particular to an end cover of a coating reel. Background Art

[0002] Traditional coating reels are generally assembled from end cap outer cylinder, inner cylinder, aluminum tube and cylinder body. Figure 5 , Figure 5 The exploded structure diagram of the coating reel in the prior art is shown in the figure. The assembly process is as follows: first insert the aluminum tube into the cylinder, then insert the inner cylinder at both ends of the aluminum tube, and then sleeve the end cap outer cylinder on one end of the aluminum tube and fix it on the cylinder. However, due to the large number of assembly parts, the assembly operation is more complicated, resulting in low assembly efficiency and increased production costs. Utility Model Content

[0003] The purpose of this application is to solve the above-mentioned problem and provide an end cover for a coating roll to solve the technical problem of complicated assembly operation of the coating roll.

[0004] To achieve the above object, the present application provides an end cap of a coating roll, comprising:

[0005] An outer cylinder, wherein the outer cylinder is provided with a fixing portion for fixing the end cap on the coating reel;

[0006] An inner cylinder, the inner cylinder is coaxially arranged in the outer cylinder;

[0007] And a connecting portion connecting the outer cylinder and the inner cylinder, an assembly space for assembling with the aluminum tube of the coating reel is formed between the outer cylinder and the inner cylinder, and a limiting portion for limiting the rotation of the aluminum tube of the coating reel is provided in the assembly space.

[0008] Compared with the prior art, the end cover of the coating reel of the utility model combines the outer cylinder and the inner cylinder of the end cover of the coating reel together, which is convenient for assembling the coating reel, simple to operate and high in assembly efficiency.

[0009] In one embodiment, the limiting part includes a limiting boss disposed on the outer wall of the inner cylinder; or, the limiting part includes a limiting groove disposed on the inner wall of the outer cylinder; or, the limiting part includes a limiting groove disposed on the inner wall of the outer cylinder, and a limiting boss disposed on the outer wall of the inner cylinder corresponding to the limiting groove. The limiting groove or the limiting boss cooperates with the aluminum tube of the coating reel to limit the rotation of the aluminum tube and improve the firmness of the assembly.

[0010] In one embodiment, the limiting part includes a limiting groove arranged on the inner wall of the outer cylinder, a limiting boss arranged on the outer wall of the inner cylinder corresponding to the limiting groove, and the depth of the limiting groove is the same as the height of the limiting boss, so as to enhance the limiting effect of the coating reel.

[0011] In one embodiment, the limiting part includes a limiting groove arranged on the inner wall of the outer cylinder, and a limiting boss arranged on the outer wall of the inner cylinder corresponding to the limiting groove, and the number of the limiting grooves and the limiting bosses are 6 respectively, which are symmetrically arranged around the axis of the inner cylinder. The symmetrical arrangement of the limiting grooves and the limiting bosses balances the force on the aluminum tube of the coating reel, thereby ensuring the normal rotation of the coating reel.

[0012] In one embodiment, the fixing portion comprises an annular boss radially extending from the outer wall of the outer cylinder, and the annular boss is provided with a plurality of fixing holes, wherein the fixing holes are used to fix the end cap on the cylinder body of the coating reel.

[0013] In one embodiment, the number of the fixing holes is 4, which are symmetrically arranged around the axis of the annular boss to ensure that the end cover and the body of the coating reel are subjected to balanced forces.

[0014] In one embodiment, the annular boss is further provided with reinforcing ribs for enhancing the structural strength of the annular boss.

[0015] In one embodiment, the connection portion includes a top plate, and the top plate is provided on the end surface of the outer tube and the end surface of the inner tube. The top plate can enhance the connection strength between the outer tube and the inner tube.

[0016] In one embodiment, the end surface of the inner tube away from the top plate protrudes further than the end surface of the outer tube away from the top plate, and by increasing the inner wall area of ​​the inner tube, the contact area between the inner wall of the inner tube and the inflatable shaft is further increased, thereby enhancing the expansion effect.

[0017] In one embodiment, the outer cylinder, the inner cylinder and the connecting portion are integrally formed, which can reduce the assembly error between the outer cylinder, the inner cylinder and the connecting portion, reduce the assembly difficulty of the coating reel, and enhance the structural strength of the end cap to extend the service life.

[0018] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an end cover in one embodiment of the present application;

[0020] Figure 2 This is a schematic structural diagram of an end cover in an embodiment of the present application from another angle;

[0021] Figure 3 A front view of an end cap in one embodiment of the present application;

[0022] Figure 4A side view of an end cap in one embodiment of the present application;

[0023] Figure 5 Schematic diagram of the explosion of the traditional coating reel structure.

[0024] Numbers in the figure:

[0025] 1-outer cylinder, 2-inner cylinder, 3-connecting part, 4-limiting part, 11-fixing part, 12-end surface of outer cylinder away from top plate, 21-end surface of inner cylinder away from top plate, 31-top plate, 41-limiting groove, 42-limiting boss, 111-annular boss, 112-fixing hole, 113-reinforcing rib. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of this application. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0028] It should also be noted that in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] Please also read Figures 1 to 3 The present embodiment provides an end cover of a coating reel. Specifically, the end cover comprises an outer cylinder 1, on which a fixing portion 11 for fixing the end cover on the coating reel is provided; an inner cylinder 2, which is coaxially arranged in the outer cylinder 1; and a connecting portion 3 connecting the outer cylinder 1 and the inner cylinder 2, wherein an assembly space for assembling with an aluminum tube of the coating reel is formed between the outer cylinder 1 and the inner cylinder 2, and a limiting portion 4 for limiting the rotation of the aluminum tube of the coating reel is provided in the assembly space.

[0030] Among them, the outer cylinder 1, the inner cylinder 2 and the connecting portion 3 are integrally formed, which can reduce the assembly error between the outer cylinder 1, the inner cylinder 2 and the connecting portion 3, reduce the assembly difficulty of the coating reel, and can also enhance the structural strength of the end cap and extend the service life. In another embodiment, the outer cylinder 1, the inner cylinder 2 and the connecting portion 3 can also be assembled. The end cap is made of plastic material, has good processing performance, can meet higher processing accuracy requirements, and improve the dimensional accuracy and assembly accuracy of the end cap. In another embodiment, the reel can also be made of aluminum alloy or other materials with good processing performance.

[0031] See also Figure 3 The limiting part 4 is used to limit the rotation of the aluminum tube of the coating reel relative to the end cover, so as to improve the firmness of the assembly. Specifically, the limiting part 4 includes a limiting boss 42 arranged on the outer wall of the inner cylinder 2, and a corresponding groove is arranged on the inner wall of the aluminum tube of the coating reel; or, the limiting part 4 includes a limiting groove 41 arranged on the inner wall of the outer cylinder 1, and a corresponding boss is arranged on the outer wall of the aluminum tube of the coating reel; or, the limiting part 4 includes a limiting groove 41 arranged on the inner wall of the outer cylinder 1, and a limiting boss 42 arranged on the outer wall of the inner cylinder 2 corresponding to the limiting groove 41, so as to further enhance the limiting effect.

[0032] The limiting portion 4 includes a limiting groove 41 arranged on the inner wall of the outer cylinder 1, and a limiting boss 42 arranged on the outer wall of the inner cylinder 2 corresponding to the limiting groove 41. The depth of the limiting groove 41 is the same as the height of the limiting boss 42, ensuring that the distance between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2 is equal at any position. Specifically, the distance between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2 is the same as the thickness of the aluminum tube of the coating reel, further enhancing the limiting effect of the aluminum tube. The length of the limiting groove 41 along the axial direction of the outer cylinder 1 is equal to the axial length of the outer cylinder 1, and its cross section is an open fan-shaped cross section; the length of the limiting boss 42 along the axial direction of the inner cylinder 2 is equal to the axial length of the inner cylinder 2, and its cross section is a fan-shaped cross section. The radial length of the limiting groove 41 is slightly greater than the radial length of the limiting boss 42, which facilitates the insertion of the aluminum tube of the coating reel between the outer cylinder 1 and the inner cylinder 2. In other embodiments, the cross section of the limiting groove 41 may also be an open square cross section or other cross sections, and the cross section of the limiting boss 42 may also be a square cross section or other cross sections.

[0033] The limiting portion 4 includes a limiting groove 41 arranged on the inner wall of the outer cylinder 1, and a limiting boss 42 arranged on the outer wall of the inner cylinder 2 corresponding to the limiting groove 41. The number of the limiting grooves 41 and the limiting boss 42 are 6 respectively, and they are symmetrically arranged around the axis of the inner cylinder 2. The symmetrical arrangement around the axis of the inner cylinder 2 can ensure that the aluminum tube of the end cap and the coating reel is balanced. In other embodiments, the number of the limiting grooves 41 and the limiting boss 42 can also be 5, 7 or other numbers.

[0034] Please also read Figure 1 and Figure 2 , the fixing portion 11 includes an annular boss 111 extending radially from the outer wall of the outer cylinder 1, and a plurality of fixing holes 112 are provided on the annular boss 111. After the end cover is inserted into the aluminum tube of the coating reel, the end cover can be fixed to the barrel of the coating reel through the fixing holes 112. The annular boss 111 is arranged at one end away from the connecting plate. In another embodiment, the annular boss 111 can also be arranged in the middle or other positions on the outer wall of the outer cylinder 1. In another embodiment, the fixing portion 11 includes a plurality of protrusions extending radially from the outer wall of the outer cylinder 1, and a fixing hole 112 is provided on each of the protrusions. The fixing hole 112 is a countersunk hole, and the end cover can be fixed to the barrel of the coating reel using a countersunk screw. The countersunk hole can prevent the screw head from being exposed and interfering with the assembly of other parts.

[0035] The number of the fixing holes 112 is 4, which are symmetrically arranged around the axis of the annular boss 111 to ensure that the end cap and the barrel of the coating reel are subjected to balanced forces. In other embodiments, the number of the fixing holes 112 can also be 3, 5 or other numbers.

[0036] The annular boss 111 is further provided with reinforcing ribs 113 for reinforcing the structural strength of the annular boss 111. Specifically, the number of the reinforcing ribs 113 is 8 and they are symmetrically arranged around the axis of the annular boss 111. In other embodiments, the number of the reinforcing ribs 113 may also be 7, 9 or other numbers.

[0037] See also Figure 2 , the connecting part 3 includes a top plate 31, which is arranged on the end surface of the outer tube 1 and the end surface of the inner tube 2, and the top plate 31 is perpendicular to the axis of the outer tube 1. Specifically, the top plate 31 is an annular structure, and the difference between its outer radius and inner radius is equal to the distance between the outer wall of the outer tube 1 and the inner wall of the inner tube 2, which can enhance the connection strength of the outer tube 1 and the inner tube 2. The top plate 31 is integrally arranged with the outer tube 1 and the inner tube 2 to enhance the structural strength and the integrity of the end cover. In another embodiment, the connecting part 3 includes a plurality of connecting blocks, which are symmetrically arranged around the axis of the outer tube 1. In another embodiment, the connecting part 3 can also be arranged in the middle of the outer tube 1 and the middle of the inner tube 2 or other places, as long as the outer tube 1 and the inner tube 2 can be connected. In another embodiment, the top plate 31 can also connect the outer tube 1 and the inner tube 2 by screw connection or other connection methods.

[0038] See also Figure 4 , the end surface 21 of the inner cylinder 2 away from the top plate 31 protrudes beyond the end surface 12 of the outer cylinder 1 away from the top plate 31, which is used to increase the contact area with the inflatable shaft. The assembly process of the coating reel and the inflatable shaft is as follows: the end caps are installed on both sides of the barrel of the coating reel. When the inflatable shaft is not inflated, its outer diameter is smaller than the inner diameter of the inner cylinder 2 of the end cap and the inner diameter of the barrel of the coating reel. At this time, the inflatable shaft is inserted from the end cap at one end of the coating reel and then extended from the end cap at the other end; the inflatable shaft is inflated, and the outer diameter of the inflatable shaft increases until it presses against the inner wall of the barrel of the coating reel and the inner wall of the inner cylinder 2 of the end cap to expand it. By increasing the inner wall area of ​​the inner cylinder 2, the contact area with the inflatable shaft can be increased, the expansion effect can be further improved, and the stability of the coating reel during rotation can be improved.

[0039] The specific examples described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An end cap of a coating roll, characterized in that: include: An outer cylinder, wherein the outer cylinder is provided with a fixing portion for fixing the end cap on the coating reel; An inner cylinder, the inner cylinder is coaxially arranged in the outer cylinder; And a connecting portion connecting the outer cylinder and the inner cylinder, an assembly space for assembling with the aluminum tube of the coating reel is formed between the outer cylinder and the inner cylinder, and a limiting portion for limiting the rotation of the aluminum tube of the coating reel is provided in the assembly space.

2. The end cap of the coating reel according to claim 1, characterized in that: The limiting portion includes a limiting boss arranged on the outer wall of the inner cylinder; Or, the limiting portion includes a limiting groove arranged on the inner wall of the outer cylinder; Alternatively, the limiting portion includes a limiting groove arranged on the inner wall of the outer cylinder, and a limiting boss arranged on the outer wall of the inner cylinder corresponding to the limiting groove.

3. The end cap of the coating reel according to claim 1, characterized in that: The limiting portion includes a limiting groove arranged on the inner wall of the outer cylinder, and a limiting boss arranged on the outer wall of the inner cylinder corresponding to the limiting groove, and the depth of the limiting groove is the same as the height of the limiting boss.

4. The end cap of the coating reel according to claim 1, characterized in that: The limiting portion includes a limiting groove arranged on the inner wall of the outer cylinder, and a limiting boss arranged on the outer wall of the inner cylinder corresponding to the limiting groove. The number of the limiting grooves and the limiting bosses are 6 respectively, and they are symmetrically arranged around the axis of the inner cylinder.

5. The end cap of the coating reel according to claim 1, characterized in that: The fixing portion comprises an annular boss radially extending from the outer wall of the outer cylinder, and a plurality of fixing holes are arranged on the annular boss.

6. The end cap of the coating reel according to claim 5, characterized in that: The number of the fixing holes is 4, and they are symmetrically arranged around the axis of the annular boss.

7. The end cap of the coating reel according to claim 5, characterized in that: The annular boss is also provided with reinforcing ribs.

8. The end cap of the coating reel according to any one of claims 1 to 7, characterized in that: The connecting portion includes a top plate, and the top plate is arranged on the end surface of the outer tube and the end surface of the inner tube.

9. The end cap of the coating reel according to claim 8, characterized in that: An end surface of the inner tube away from the top plate protrudes beyond an end surface of the outer tube away from the top plate.

10. The end cap of the coating reel according to any one of claims 1 to 7, characterized in that: The outer cylinder, the inner cylinder and the connecting portion are integrally formed.

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