Tension roller for wrinkle removal and flattening of copper foil and aluminum foil

Abstract

The utility model discloses a tension roller for wrinkle-removing and flattening of copper foil and aluminum foil, which comprises a roller, a plurality of bulges are arranged on the outer side wall of the roller at equal intervals, a groove is arranged between any two adjacent bulges, the bulges surround the roller along the circumferential direction of the roller, and the bulges are arranged in the roller along the circumferential direction of the roller. The two ends of the side, away from the roller, of each protrusion are provided with chamfers respectively, the width of each protrusion ranges from 0.75 mm to 1 mm, the height of each protrusion is 0.8 mm, and the width of each groove ranges from 0.75 mm to 1 mm. The roller shaft assembly is coaxial with the roller cylinder, the roller shaft assembly penetrates through the two ends of the roller cylinder, and the roller shaft assembly is rotationally connected with the roller cylinder. According to the tension roller, the protrusions are arranged on the outer side wall of the roller at equal intervals, and the grooves are formed between every two adjacent protrusions, so that when the tension roller is used for flattening the copper foil and the aluminum foil, the grooves provide space for deformation of the copper foil and the aluminum foil, wrinkles and inclined grains generated in the machining process of the copper foil and the aluminum foil are reduced, and the yield of the copper foil and the aluminum foil is increased.

Description

Technical Field

[0001] The utility model generally relates to the field of copper foil and aluminum foil production equipment, in particular to a tension roller for wrinkle removal and flattening of copper foil and aluminum foil. Background Art

[0002] Copper foil and aluminum foil are a kind of cathodic electrolytic material, a thin, continuous metal foil precipitated on the substrate layer of the circuit board, which serves as the conductor of the PCB. It is easy to adhere to the insulating layer, accept the printed protective layer, and form a circuit pattern after corrosion. Copper foil and aluminum foil need to go through a series of processing links from raw materials to production work in actual application. Among them, flattening is an extremely important process in the processing of copper foil and aluminum foil. In the flattening process, a tension roller is used to roll the copper foil and aluminum foil to make the thickness of the copper foil and aluminum foil thinner.

[0003] In the prior art, the tension roller is generally a complete cylindrical surface. When the tension roller is used to flatten the copper foil and the aluminum foil, wrinkles and diagonal lines may appear on the copper foil and the aluminum foil, resulting in a low yield rate of the copper foil and the aluminum foil. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a tension roller for de-wrinkling and flattening copper foil and aluminum foil that can reduce wrinkles and diagonal lines.

[0005] In the first aspect, the utility model provides a tension roller for de-wrinkling and flattening copper foil and aluminum foil, and the tension roller for de-wrinkling and flattening copper foil and aluminum foil comprises:

[0006] A roller, wherein a plurality of protrusions are arranged at equal intervals on its outer side wall, a groove is arranged between any two adjacent protrusions, the protrusions surround the roller along the circumference of the roller, and chamfers are arranged at both ends of the protrusions away from the roller, the width of the protrusions is 70 mm, the height of the protrusions is 80-100 mm, and the width of the grooves is 1.06-1.2 mm;

[0007] A roller assembly is coaxial with the roller, passes through two ends of the roller, and is rotatably connected to the roller.

[0008] According to the technical solution provided in the embodiment of the present application, by arranging a plurality of protrusions at equal intervals on the outer side wall of the roller and setting a groove between two adjacent protrusions, when the copper foil and aluminum foil are flattened using a tension roller, the groove provides space for the deformation of the copper foil and aluminum foil, thereby reducing wrinkles and twill lines generated during the processing of the copper foil and aluminum foil, and improving the yield rate of the copper foil and aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0010] Figure 1 This is a schematic structural diagram of a tension roller for wrinkle-removing and flattening copper and aluminum foils according to an embodiment of the utility model;

[0011] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0012] Figure 3 This is a schematic structural diagram of the protrusions and grooves on the outer side wall of a tension roller for wrinkle removal and flattening of copper and aluminum foil in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0014] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0015] Please refer to Figures 1 to 3 The utility model discloses a tension roller for de-wrinkling and flattening copper foil and aluminum foil, and the tension roller for de-wrinkling and flattening copper foil and aluminum foil comprises: a roller 100, whose outer wall is provided with a plurality of protrusions 110 at equal intervals, a groove 120 is provided between any two adjacent protrusions 110, the protrusions 110 surround the roller 100 along the circumference of the roller 100, and the two ends of the protrusions 110 away from the roller 100 are respectively provided with chamfers 111, the width of the protrusion 110 is 0.75-1mm, the height of the protrusion 110 is 0.8mm, and the width of the groove 120 is 0.75-1mm; a roller shaft assembly 200, which is coaxial with the roller 100, the roller shaft assembly 200 passes through the two ends of the roller 100, and the roller shaft assembly 200 is rotatably connected to the roller 100.

[0016] In the embodiment of the utility model, a plurality of protrusions 110 are arranged at equal intervals on the outer wall of the roller 100, and a groove 120 is arranged between two adjacent protrusions 110. When the copper foil and aluminum foil are wrinkle-removed and flattened, the end of the protrusion 110 away from the roller 100 will contact the copper foil and aluminum foil, and the groove 120 between the protrusions 110 provides space for the deformation of the copper foil and aluminum foil, thereby reducing the wrinkles and diagonal lines generated during the processing of the copper foil and aluminum foil, and improving the yield rate of the copper foil and aluminum foil. The two ends of the protrusion 110 away from the roller 100 are respectively provided with chamfers 111, and the chamfers 111 can prevent the protrusions 110 from damaging the copper foil and aluminum foil. The roller assembly 200 passes through the two ends of the roller 100, and the roller assembly 200 is connected to the roller 100 for rotation. When the tension roller is working, the two ends of the roller assembly 200 are fixed, and the roller 100 can rotate relative to the roller assembly 200.

[0017] Furthermore, the outer wall of the roller 100 is sprayed with a ceramic spray layer.

[0018] In the embodiment of the utility model, the ceramic spray layer can improve the wear resistance of the roller 100, ensure the yield rate of the tension roller in processing copper foil and aluminum foil, and extend the service life of the tension roller.

[0019] Furthermore, the thickness of the ceramic spray layer is 0.25 to 0.3 mm.

[0020] Furthermore, the two ends of the roller 100 are respectively fixedly connected with end covers 130, the end covers 130 are provided with through holes 131 for the roller assembly 200 to pass through, the end covers 130 are fixedly connected with bearing seats 140, and the bearing seats 140 and the roller assembly 200 are rotationally connected via bearings 150.

[0021] In the embodiment of the utility model, the roller 100 is fixedly connected with end covers 130 at both ends, and the end covers 130 are used to connect the bearing seat 140. The roller 100 and the end covers 130 may be fixed by welding, but not limited to, to ensure the connection strength between the roller 100 and the end covers 130. When assembling the tension roller, the roller shaft assembly 200 passes through the through hole 131, which is convenient for assembling the tension roller. The bearing is fixed on the bearing seat 140, and the bearing seat 140 supports the bearing. The bearing seat 140 and the roller shaft assembly 200 are rotatably connected through the bearing, which can reduce the resistance during the rotation of the tension roller. The bearing may be, but not limited to, a self-aligning ball bearing.

[0022] Furthermore, the bearing seat 140 is detachably fixedly connected with a bearing baffle 160 , which is located on a side of any bearing facing away from the other bearing, and an elastic retaining ring 170 is provided on a side of the bearing baffle 160 facing away from the bearing 150 .

[0023] In an embodiment of the utility model, the bearing seat 140 is detachably fixedly connected with a bearing baffle 160, and the bearing baffle 160 can block the bearing to prevent the bearing from being separated from the bearing seat 140. The bearing baffle 160 is detachably fixedly connected to the bearing seat 140, which is convenient for disassembling and assembling the bearing. It can be, but not limited to, that the bearing baffle 160 is detachably fixedly connected to the bearing seat 140 by a plurality of screws. An elastic retaining ring 170 is provided on the side of the bearing baffle 160 facing away from the bearing, and the elastic retaining ring 170 can improve the sealing performance of the connection between the bearing baffle 160 and the bearing seat 140, and ensure that the bearing can work stably.

[0024] Furthermore, a side of the bearing baffle 160 facing the bearing is provided with an avoidance groove 161 , and the inner ring of the bearing faces the avoidance groove 161 .

[0025] In an embodiment of the utility model, the bearing baffle 160 is provided with an avoidance groove 161. When the roller 100 rotates, the bearing baffle 160 will rotate along with the roller 100, that is, the bearing baffle 160 will rotate relative to the inner ring of the bearing. By providing the avoidance groove 161, the inner ring of the bearing is prevented from contacting with the bearing baffle 160, thereby preventing unnecessary wear of the bearing.

[0026] Furthermore, the roller assembly 200 includes a concentrically arranged connecting sleeve 210 and two spindles 220 , the two spindles 220 are respectively inserted into both ends of the connecting sleeve 210 , the connecting sleeve 210 is located in the roller 100 , and any one of the spindles 220 passes through one end of the roller 100 .

[0027] In the embodiment of the utility model, the two spindles 220 are connected by the connecting sleeve 210 , so that the overall strength of the roller assembly 200 can be ensured. Meanwhile, the connecting sleeve 210 can reduce the weight of the roller assembly 200 .

[0028] Furthermore, the spindle 220 is provided with a positioning step 221 .

[0029] In the embodiment of the utility model, when the bearing is sleeved on the spindle 220 , the positioning step 221 can serve as a positioning stop for the bearing, thereby facilitating the assembly of the bearing and the spindle 220 .

[0030] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A tension roller for wrinkle removal and flattening of copper and aluminum foils, characterized in that: The tension roller for wrinkle-removing and flattening copper and aluminum foils comprises: A roller, wherein a plurality of protrusions are arranged at equal intervals on the outer wall thereof, a groove is arranged between any two adjacent protrusions, the protrusions surround the roller along the circumference of the roller, and chamfers are arranged at both ends of the protrusions away from the roller, the width of the protrusions is 0.75 to 1 mm, the height of the protrusions is 0.8 mm, and the width of the grooves is 0.75 to 1 mm; A roller assembly is coaxial with the roller, passes through two ends of the roller, and is rotatably connected to the roller.

2. The tension roller for wrinkle removal and flattening of copper foil and aluminum foil according to claim 1, characterized in that: The outer side wall of the roller is sprayed with a ceramic spray layer.

3. The tension roller for wrinkle removal and flattening of copper foil and aluminum foil according to claim 2, characterized in that: The thickness of the ceramic spray layer is 0.25-0.3 mm.

4. The tension roller for wrinkle reduction and flattening of copper foil and aluminum foil according to claim 1, characterized in that: The two ends of the roller are respectively fixedly connected with end covers, the end covers are provided with through holes for the roller shaft assembly to pass through, the end covers are fixedly connected with bearing seats, and the bearing seats and the roller shaft assembly are rotatably connected via bearings.

5. The tension roller for wrinkle-removing and flattening copper and aluminum foils according to claim 4, characterized in that: The bearing seat is detachably fixedly connected with a bearing baffle, the bearing baffle is located on a side of any one of the bearings facing away from the other bearing, and an elastic retaining ring is arranged on the side of the bearing baffle facing away from the bearing.

6. The tension roller for wrinkle-removing and flattening copper and aluminum foils according to claim 5, characterized in that: A side of the bearing baffle facing the bearing is provided with an avoidance groove, and the inner ring of the bearing faces the avoidance groove.

7. The tension roller for wrinkle-removing and flattening copper and aluminum foils according to claim 1, characterized in that: The roller assembly includes a connecting sleeve and two mandrels which are arranged concentrically. The two mandrels are respectively inserted into two ends of the connecting sleeve. The connecting sleeve is located in the roller. Any one of the mandrels passes through one end of the roller.

8. The tension roller for wrinkle-removing and flattening copper and aluminum foils according to claim 7, characterized in that: The spindle is provided with a positioning step.

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