Adsorption roller and winding equipment

Abstract

The utility model provides an adsorption roller and winding equipment, the adsorption roller comprises: a roller body, the axis of the roller body extends along a first direction, the roller body is internally provided with an accommodating cavity, the peripheral surface of the roller body is provided with an adsorption port communicated with the accommodating cavity; at least one part of the adsorption block is arranged in the containing cavity, a cavity is formed in the adsorption block, an opening and a connecting port are formed in the outer surface of the adsorption block, the opening communicates with the cavity and the adsorption port, and the connecting port is used for being connected with a vacuumizing assembly. According to the adsorption roller, the adsorption opening is formed in the peripheral face of the roller body, the cavity in the adsorption block can form a negative pressure environment through the vacuumizing assembly, the opening in the adsorption block and the containing cavity in the roller body are communicated with the adsorption opening, and the pressure difference between the interior and the exterior of the adsorption opening can be formed; the air pressure in the adsorption roller is lower than the air pressure outside the adsorption roller, so that the tabs are firmly attached to the outer peripheral surface of the roller body to be conveyed downstream, and the tabs are prevented from being turned over.

Description

Technical Field

[0001] The utility model relates to the technical field of battery equipment manufacturing, and more specifically, to an adsorption roller and a winding device. Background Art

[0002] In the related art, the pole piece presents a multi-ear state after laser die-cutting, and the multi-ear pole piece and the waste pole piece continue to be transported downstream. Among them, the pole piece with the pole ear is conveyed to the next station through the roller, and the waste pole ear is separated from the pole ear and adsorbed by the waste adsorption mechanism, and then continues to be transported downstream. However, during the transmission process, the waste pole ear may pull the pole ear on the die-cut pole piece, causing the pole ear to fold, and ultimately affecting the battery cell manufacturing. Utility Model Content

[0003] The utility model provides a new technical solution for an adsorption roller, which can at least solve the problem in the prior art that the tabs are prone to folding during the transmission process after die cutting.

[0004] The utility model also provides a winding device, comprising the above-mentioned adsorption roller.

[0005] According to the first aspect of the utility model, there is provided an adsorption roller, comprising: a roller body, the axis of the roller body extending along a first direction, a containing cavity being provided in the roller body, and a suction port communicating with the containing cavity being provided on the outer peripheral surface of the roller body; an adsorption block, at least a part of the adsorption block being provided in the containing cavity, a chamber being provided in the adsorption block, an opening and a connecting port being provided on the outer surface of the adsorption block, the opening communicating with the chamber and the adsorption port, and the connecting port being used for connecting a vacuum pumping component.

[0006] Optionally, the opening is formed as an arc-shaped opening extending along the circumference of the roller body, and two ends of the opening are spaced apart along the circumference of the roller body.

[0007] Optionally, the curvature of the opening is 80° to 100°.

[0008] Optionally, there are multiple suction ports, at least two of which are arranged at intervals along the circumference of the roller body, and the opening is connected to at least one of the multiple suction ports.

[0009] Optionally, at least two of the plurality of adsorption ports are arranged along the first direction.

[0010] Optionally, there are multiple openings, and the multiple openings are arranged at intervals along the first direction.

[0011] Optionally, the adsorption roller further includes: a mounting shaft, the axis of the mounting shaft extends along the first direction, the adsorption block is connected to the mounting shaft, and the roller body is rotatably disposed on the mounting shaft around the axis of the mounting shaft.

[0012] Optionally, the adsorption block includes: a body, which is annular, at least a portion of which is accommodated in the accommodating cavity, the outer circumferential surface of the body is spaced apart from the inner wall surface of the accommodating cavity, the chamber is arranged in the body, and the opening is arranged on the outer circumferential surface of the body; a locking portion, which is arranged at one end of the body in the first direction, and the locking portion is located outside the accommodating cavity, and the locking portion is arranged on the mounting shaft; and a locking piece, which is connected to the locking portion to lock the locking portion to the mounting shaft.

[0013] Optionally, the locking portion is rotatable around the axis of the mounting shaft, and the locking piece is detachably connected to the locking portion.

[0014] Optionally, the connecting port is provided at one end of the main body close to the locking portion.

[0015] Optionally, the roller body includes: a roller, which extends along the first direction and has a cavity that penetrates along its own axial direction; two end covers, which are rotatably connected to the mounting shaft respectively, and are arranged at both ends of the roller and close the cavity, and at least one of the two end covers is provided with the accommodating cavity.

[0016] Optionally, the adsorption roller further includes: a dustproof ring, wherein the dustproof ring is arranged between the end cover and the mounting shaft.

[0017] Optionally, the accommodating cavity and / or the chamber is annular.

[0018] According to a second aspect of the present invention, a winding device is provided, comprising the adsorption roller described in any one of the above embodiments.

[0019] According to the adsorption roller of the utility model, at least a part of the adsorption block is arranged in the roller body, and an adsorption port is arranged on the outer peripheral surface of the roller body. The vacuum assembly can be used to form a negative pressure environment in the chamber of the adsorption block, and the opening on the adsorption block and the accommodating cavity on the roller body are connected with the adsorption port. A pressure difference can be formed between the inside and outside of the adsorption port, so that the air pressure in the adsorption roller is lower than the air pressure outside the adsorption roller, so that the pole ear is firmly attached to the outer peripheral surface of the roller body and transmitted downstream, avoiding the pole ear from folding.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 It is a schematic diagram of a partial structure of a winding device according to an embodiment of the utility model;

[0023] Figure 2 It is a three-dimensional diagram of an adsorption roller according to an embodiment of the utility model;

[0024] Figure 3 is a side view of an adsorption roller according to an embodiment of the utility model;

[0025] Figure 4 is along Figure 3 Sectional view along line AA;

[0026] Figure 5 It is a three-dimensional diagram of an adsorption block in an adsorption roller according to an embodiment of the utility model;

[0027] Figure 6 This is a front view of an adsorption block in an adsorption roller according to an embodiment of the utility model;

[0028] Figure 7 It is a side view of an adsorption block in an adsorption roller according to an embodiment of the utility model;

[0029] Figure 8 is along Figure 7 Sectional view along line BB.

[0030] Reference numerals

[0031] Adsorption roller 100;

[0032] Roller body 10; roller 11; cavity 111; end cover 12; accommodating cavity 121; suction port 122; first end cover 12a; second end cover 12b;

[0033] Adsorption block 20; body 21; chamber 211; opening 212; connection port 213; locking portion 22; locking member 23;

[0034] Gas connector 31;

[0035] Install shaft 40;

[0036] Dust ring 50;

[0037] Laser die-cutting mechanism 200;

[0038] Waste adsorption mechanism 300;

[0039] Pole piece 400;

[0040] Pole piece 500 with tabs. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0043] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0044] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0045] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0046] In the conventional technology, the winding device includes a laser die-cutting mechanism 200, a roller and a waste adsorption mechanism 300. After laser die-cutting, the pole piece 400 is in a multi-ear state. The roller and the waste adsorption mechanism 300 are respectively arranged downstream of the laser die-cutting mechanism 200. A vacuum adsorption assembly is arranged on the outer peripheral side of the roller. Under the suction of the vacuum adsorption assembly, the pole piece 500 with the pole ear can be conveyed to the next station through the roller, while the multi-ear pole piece 400 and the waste pole ear will be conveyed toward the waste adsorption mechanism 300 and adsorbed by the waste adsorption mechanism 300. When the pole piece 500 with the pole ear is separated from the waste pole ear, the pole ear on the pole piece 500 with the pole ear is easy to be folded.

[0047] First, the adsorption roller 100 according to the embodiment of the utility model is described in detail with reference to the drawings.

[0048] like Figures 1 to 5 As shown, the adsorption roller 100 according to the embodiment of the present invention includes: a roller body 10 and an adsorption block 20 .

[0049] Specifically, the axis of the roller body 10 extends along the first direction, a receiving cavity 121 is provided in the roller body 10, and a suction port 122 communicating with the receiving cavity 121 is provided on the outer peripheral surface of the roller body 10. At least a portion of the suction block 20 is provided in the receiving cavity 121, a chamber 211 is provided in the suction block 20, and an opening 212 and a connecting port 213 are provided on the outer surface of the suction block 20, and the opening 212 communicates with the chamber 211 and the suction port 122. The connecting port 213 can be connected to a vacuum assembly.

[0050] In other words, the adsorption roller 100 according to the embodiment of the utility model is mainly composed of a roller body 10 and an adsorption block 20. The axial direction of the roller body 10 can be defined as a first direction, and a receiving cavity 121 can be provided in the roller body 10, and a part or all of the adsorption block 20 can be accommodated in the receiving cavity 121. A suction port 122 can be provided on the outer peripheral surface of the roller body 10, and the suction port 122 can be connected to the receiving cavity 121.

[0051] The adsorption block 20 may be provided with a chamber 211, and the outer surface of the adsorption block 20 may be provided with an opening 212 and a connection port 213. The opening 212 may be located in the accommodating chamber 121, so that the opening 212 is connected to the accommodating chamber 121. The vacuum assembly may be connected to the chamber 211 through the connection port 213. The chamber 211 may be vacuumed by starting the vacuum assembly, so that a negative pressure is generated in the chamber 211. Since the chamber 211 is connected to the opening 212, the opening 212 is connected to the accommodating chamber 121, and the accommodating chamber 121 is connected to the adsorption port 122, a negative pressure may be generated at the adsorption port 122, so that the pole ear is adsorbed, so that the pole ear is attached to the outer peripheral surface of the roller body 10, and the pole ear is prevented from folding.

[0052] It should be noted that the number and shape of the adsorption ports 122 and the openings 212 are not limited herein, and any shapes of adsorption ports 122 and openings 212 can be used to adsorb the tabs using the chamber 211 in the adsorption block 20 .

[0053] Therefore, according to the adsorption roller 100 of the embodiment of the utility model, at least a part of the adsorption block 20 is arranged in the roller body 10, and the adsorption port 122 is arranged on the outer peripheral surface of the roller body 10. The vacuum assembly can be used to form a negative pressure environment in the chamber 211 in the adsorption block 20, and the opening 212 on the adsorption block 20 and the accommodating cavity 121 on the roller body 10 are connected with the adsorption port 122. A pressure difference can be formed between the inside and outside of the adsorption port 122, so that the air pressure in the adsorption roller 100 is lower than the air pressure outside the adsorption roller 100, so that the pole ear is firmly attached to the outer peripheral surface of the roller body 10 and transmitted downstream, thereby avoiding the pole ear from folding.

[0054] According to some other embodiments of the present invention, the opening 212 is formed as an arc-shaped opening 212 extending along the circumference of the roller body 10 , and two ends of the opening 212 are spaced apart along the circumference of the roller body 10 .

[0055] like Figures 5 to 8 As shown, the adsorption block 20 may be substantially cylindrical, the opening 212 may be arc-shaped, and the opening 212 may extend along the circumference of the roller body 10. In the circumference of the roller body 10, the opening 212 has two ends, and the two ends may be spaced apart, that is, the two ends of the opening 212 are not connected, so that the outer surface portion of the adsorption block 20 is provided with the opening 212.

[0056] like Figure 1 As shown, after the pole piece 400 is die-cut by the laser die-cutting mechanism 200, an angle α may be formed between the paths of the pole tab passing through the adsorption roller 100, and the arc length of the outer circumference of the roller body 10 and the pole tab in contact is related to α.

[0057] Specifically, the α / 360° outer circumferential surface of the roller body 10 can be fitted with the pole ear, and the arc length of the opening 212 can be equal to α, so that the adsorption ports 122 on the outer circumferential surface of the roller body 10 that are fitted with the pole ear can generate negative pressure, thereby ensuring the reliability of adsorption of the adsorption roller 100. At the same time, when the pole ear on the pole piece 500 with the pole ear is completely separated from the waste pole ear, the adsorption roller 100 will no longer continue to adsorb the pole ear, and the pole ear can continue to be transported downstream.

[0058] In some specific embodiments of the present invention, the arc of the opening 212 is 80° to 100°. Therefore, the arc of the tab and the outer peripheral surface of the roller body 100 can be 80° to 100°, which can effectively separate the tab on the pole piece 500 with tabs from the waste tabs and prevent the tab on the pole piece 500 with tabs from folding.

[0059] Optionally, α can be 90°, 1 / 4 of the outer circumference of the roller body 10 can be in contact with the pole ear, and the curvature of the opening 212 is equal to α. Therefore, the adsorption port 122 on the 1 / 4 outer circumference of the roller body 10 can be opposite to and connected with the opening 212 on the adsorption block 20 to generate negative pressure, so that the pole ear on the pole piece 500 with the pole ear can be reliably adsorbed when the pole ear on the pole piece 500 with the pole ear is separated from the waste pole ear, and the adsorption of the pole ear can be released after the pole ear on the pole piece 500 with the pole ear is separated from the waste pole ear, which can effectively prevent the pole ear from folding and allow the pole ear to continue to be transported downstream.

[0060] According to some optional embodiments of the present invention, there are multiple suction ports 122 , at least two suction ports 122 are arranged at intervals along the circumference of the roller body 10 , and the opening 212 is connected to at least one of the multiple suction ports 122 .

[0061] Specifically, N suction ports 122 may be provided on the outer circumferential surface of the roller body 10, and M suction ports 122 among the N suction ports 122 may be arranged at intervals along the circumferential direction of the roller body 10. N≥M, where M is an integer ≥2.

[0062] The opening 212 on the adsorption block 20 may be in communication with one or more of the N adsorption ports 122 , so that negative pressure is generated at the one or more adsorption ports 122 to adsorb the electrode tab.

[0063] It should be noted that during the transportation of the pole ear, the pole ear is in contact with the outer peripheral surface of the roller body 10 and can drive the roller body 10 to rotate around its own axis, and the adsorption block 20 can remain relatively still, that is, the roller body 10 can rotate relative to the adsorption block 20, and the opening 212 on the adsorption block 20 can remain stationary and always face the pole ear. During the rotation of the roller body 10, a part of the adsorption port 122 on the roller body 10 can be connected to the opening 212 to generate negative pressure to adsorb the pole ear.

[0064] In this embodiment, at least two adsorption ports 122 are arranged in the circumferential direction of the roller body 10 , so that during the rotation of the roller body 10 , at least one adsorption port 122 is always left between the pole ear and the opening 212 to adsorb the pole ear, thereby ensuring the reliability of adsorption of the adsorption roller 100 .

[0065] In some optional embodiments, the M suction ports 122 spaced apart along the circumference of the roller body 10 may be evenly arranged, and among the M suction ports 122, the distance between any two adjacent suction ports 122 in the circumferential direction of the roller body 10 may be equal, so that the suction force on the pole ear remains roughly uniform during the rotation of the roller body 10.

[0066] Optionally, the suction port 122 may be a circular hole to facilitate the processing of the roller body 10 .

[0067] According to some other embodiments of the present invention, at least two of the plurality of adsorption ports 122 are arranged along the first direction.

[0068] Specifically, P adsorption ports 122 out of the N adsorption ports 122 may be arranged along the first direction, where N≥P, and P is an integer ≥2.

[0069] In this embodiment, since the pole ears on the pole piece 500 with pole ears extend in the first direction, at least two adsorption ports 122 are provided in the first direction, which is not only conducive to improving the adsorption force of the adsorption roller 100, but also can more reliably adsorb the pole ears in the width direction of the pole piece 400 to avoid folding of the pole ears.

[0070] Alternatively, if Figure 2 As shown, the outer circumferential surface of the roller body 10 may be provided with a plurality of rows of adsorption ports 122 evenly spaced along the circumference of the roller body 10 , and each row of adsorption ports 122 may include 6 adsorption ports 122 arranged along the first direction.

[0071] In some specific embodiments of the present invention, there are multiple openings 212 , and the multiple openings 212 are arranged at intervals along the first direction.

[0072] Arranging a plurality of openings 212 in the first direction is beneficial to improving the adsorption force at the openings 212 , and the plurality of openings 212 can better correspond to the plurality of adsorption ports 122 arranged along the first direction, thereby improving the reliability of the electrode tab being adsorbed in the width direction of the electrode piece 400 and avoiding the electrode tab from folding.

[0073] Optionally, the number of openings 212 arranged along the first direction may be the same as the number of adsorption ports 122 arranged along the first direction in the same column. For example, each column of adsorption ports 122 may include 6 adsorption ports 122, and 6 openings 212 may be provided on the adsorption block 20. The 6 openings 212 and the 6 adsorption ports 122 in the same column are arranged in a one-to-one correspondence.

[0074] According to some optional embodiments of the present invention, the adsorption roller 100 further includes a mounting shaft 40 , the axis of which extends along a first direction, the adsorption block 20 is connected to the mounting shaft 40 , and the roller body 10 is rotatably disposed on the mounting shaft 40 around the axis of the mounting shaft 40 .

[0075] Specifically, the mounting shaft 40 and the roller body 10 can be coaxially arranged, the roller body 10 can rotate around the axis of the mounting shaft 40 , and the adsorption block 20 can be fixedly mounted on the mounting shaft 40 and remain stationary together with the mounting shaft 40 .

[0076] Since the adsorption block 20 is accommodated in the accommodating cavity 121 and the roller body 10 rotates relative to the adsorption block 20 , a small gap can be formed between the adsorption block 20 and the inner wall surface of the accommodating cavity 121 to avoid friction between the adsorption block 20 and the roller body 10 .

[0077] In this embodiment, since the adsorption block 20 remains stationary, the curvature of the opening 212 can be set on the adsorption block 20 to match the curvature of the contact between the pole ear and the surface of the roller body 10, thereby ensuring that during the rotation of the roller body 10, there is always at least one adsorption port 122 that can be opposite to the opening 212 and generate negative pressure to adsorb the pole ear.

[0078] Optionally, the roller body 10 and the mounting shaft 40 may be connected via a rolling bearing, so that the roller body 10 can rotate freely relative to the mounting shaft 40 .

[0079] According to some other embodiments of the present invention, the adsorption block 20 includes: a body 21 , a locking portion 22 and a locking member 23 .

[0080] The body 21 is annular, at least a portion of the body 21 is accommodated in the accommodating cavity 121, the outer circumferential surface of the body 21 is spaced apart from the inner wall surface of the accommodating cavity 121, the chamber 211 is provided in the body 21, and the opening 212 is provided on the outer circumferential surface of the body 21. The locking portion 22 is provided at one end of the body 21 in the first direction, and the locking portion 22 is located outside the accommodating cavity 121, and the locking portion 22 is provided on the mounting shaft 40. The locking member 23 is connected to the locking portion 22 to lock the locking portion 22 to the mounting shaft 40.

[0081] That is to say, the adsorption block 20 of this embodiment can be mainly composed of a body 21, a locking portion 22 and a locking member 23. Part or all of the body 21 can be accommodated in the accommodating cavity 121, the accommodating cavity 121 can be annular, and the body 21 can be adapted to the shape of the accommodating cavity 121. Therefore, the body 21 can be annular, and the outer surface of the part of the body 21 extending into the accommodating cavity 121 can be spaced apart from the inner wall surface of the accommodating cavity 121 to form a small gap.

[0082] The body 21 of the adsorption block 20 may be coaxially connected to the mounting shaft 40 with the roller body 10 . The opening 212 may be provided on the outer peripheral surface of the adsorption block 20 , and the opening 212 is located in the accommodating cavity 121 .

[0083] In addition, a locking portion 22 may be provided on the main body 21 , and the locking portion 22 may be located outside the accommodating cavity 121 . The locking portion 22 may be locked and connected to the mounting shaft 40 via a locking member 23 , thereby fixing the adsorption block 20 on the mounting shaft 40 .

[0084] like Figures 2 to 4 As shown, the accommodating cavity 121 can be a groove set at one end of the roller body 10, a part of the body 21 in the adsorption block 20 can be located in the groove, another part of the body 21 can protrude from the notch of the groove, and the locking portion 22 and the locking member 23 can be located outside the groove.

[0085] In this embodiment, the chamber 211 and the opening 212 are arranged on the body 21, so that a larger chamber 211 can be formed on the body 21, and the chamber 211 can be used to contain dust, which is convenient for manual dust cleaning. In addition, a locking portion 22 located outside the accommodating cavity 121 is arranged on the body 21, and the adsorption block 20 is locked on the installation shaft 40 by using the locking member 23 in cooperation with the locking portion 22, so that a quick-release connection between the adsorption block 20 and the installation shaft 40 can be achieved, which is convenient for the disassembly and assembly and manual debugging of the adsorption block 20.

[0086] In some specific embodiments of the present invention, the locking portion 22 is rotatable around the axis of the installation shaft 40 , and the locking member 23 is detachably connected to the locking portion 22 .

[0087] Specifically, after the locking piece 23 is removed or loosened from the locking portion 22, the locking portion 22 can be rotated around the axial direction of the mounting shaft 40, thereby adjusting the circumferential position of the adsorption block 20 on the mounting shaft 40, thereby changing the orientation of the opening 212 on the adsorption block 20 to meet different needs and improve the applicability of the adsorption roller 100.

[0088] Optionally, the locking portion 22 may include two clamping members, the locking member 23 may be a bolt, the two clamping members may be connected by bolts, rotating the bolts may adjust the distance between the two clamping members, the mounting shaft 40 may be located between the two clamping members, the locking portion 22 may be fixed to the mounting shaft 40 by tightening the bolts, and the two clamping members may be loosened from the mounting shaft 40 by loosening the bolts, thereby disassembling the adsorption block 20 or adjusting the circumferential position of the adsorption block 20 on the mounting shaft 40.

[0089] In addition, since the locking portion 22 and the locking member 23 are located outside the accommodating cavity 121 , it is convenient for workers to operate the locking member 23 .

[0090] According to some optional embodiments of the present invention, a connection port 213 is provided at one end of the body 21 close to the locking portion 22 .

[0091] Specifically, since the locking portion 22 is located outside the accommodating cavity 121, and the connecting port 213 is located at one end of the body 21 close to the locking portion 22, the connecting port 213 can be arranged toward the outside of the accommodating cavity 121. A gas joint 31 can be provided at the connecting port 213, and the vacuum assembly can be connected to the chamber 211 through the gas joint 31 at the connecting port 213.

[0092] Optionally, in the first direction, one end of the main body 21 can be accommodated in the accommodating cavity 121, and the other end of the main body 21 can protrude from the end of the roller body 10 and be provided with a connecting port 213, thereby, the air connector 31 can be led out from one end of the roller body 10, so as to facilitate the connection between the vacuum device and the air connector 31.

[0093] According to some other embodiments of the present invention, the roller body 10 includes: a roller 11 and two end covers 12 .

[0094] The roller 11 extends in a first direction and has a cavity 111 extending through the roller 11 in its axial direction. Two end covers 12 are rotatably connected to the mounting shaft 40 respectively, and the two end covers 12 are arranged at both ends of the roller 11 and close the cavity 111. At least one of the two end covers 12 has a receiving cavity 121 therein.

[0095] In other words, the roller body 10 may be mainly composed of a roller 11 and two end covers 12 , wherein, for the sake of convenience of description, the two end covers 12 may be defined as a first end cover 12 a and a second end cover 12 b .

[0096] The roller 11 can be a hollow cylindrical structure. The axis of the roller 11 coincides with the axis of the mounting shaft 40. The roller 11 has a cavity 111 inside. Both ends of the roller 11 are open. Each open end of the roller 11 can be provided with an end cover 12. The structures of the two end covers 12 can be the same or different, which is not limited here.

[0097] In addition, the end cover 12 and the mounting shaft 40 may be rotatably connected, and a rolling bearing may be provided between the end cover 12 and the mounting shaft 40 .

[0098] Alternatively, if Figure 4 As shown, one of the two end caps 12 may be provided with a receiving cavity 121, and the adsorption roller 100 includes an adsorption block 20, which is disposed in the end cap 12 having the receiving cavity 121. For example, one end of the mounting shaft 40 may be fixedly disposed, the first end cap 12a may be close to the fixed end of the mounting shaft 40, the second end cap 12b may be far from the fixed end of the mounting shaft 40, the second end cap 12b may be provided with the receiving cavity 121, and the adsorption block 20 may be disposed in the second end cap 12b.

[0099] Alternatively, both end covers 12 are provided with a receiving cavity 121 , and the adsorption roller 100 may include two adsorption blocks 20 , and the two adsorption blocks 20 are disposed in the two receiving cavities 121 in a one-to-one correspondence.

[0100] In this embodiment, the roller body 10 is composed of a roller barrel 11 and two end covers 12 , and the accommodating cavity 121 is disposed in at least one of the end covers 12 , which is beneficial to reducing the difficulty of processing the roller body 10 .

[0101] In some specific embodiments of the present invention, the adsorption roller 100 further includes a dustproof ring 50 , which is disposed between the end cover 12 and the mounting shaft 40 , thereby preventing dust from entering the cavity 111 of the roller 11 , which is beneficial for keeping the interior of the roller body 10 clean.

[0102] Specifically, the outer periphery of the dust ring 50 may be provided with a step structure, the middle portion of the end cover 12 may be provided with a mounting hole, the mounting hole being connected to the mounting shaft 40, and the inner wall of the mounting hole may be provided with a step surface that cooperates with the step structure on the outer periphery of the dust ring 50, thereby forming a multi-layer barrier in the first direction to prevent dust outside the roller body 10 from entering the roller body 10.

[0103] According to some optional embodiments of the present invention, the accommodating cavity 121 and / or the chamber 211 is annular.

[0104] Setting the accommodating cavity 121 in a ring shape can make the wall thickness of the roller body 10 roughly the same, so that the distance between the adsorption port 122 and the adsorption block 20 is roughly the same, ensuring that the suction force of each adsorption port 122 is basically equal, which is conducive to the adsorption roller 100 to generate uniform suction on the pole ear.

[0105] The chamber 211 is arranged to be annular, so that the volume of the chamber 211 can be increased within a limited space, so that the chamber 211 can contain dust, which is convenient for manual dust cleaning.

[0106] The embodiment of the utility model further provides a winding device, which includes the adsorption roller 100 according to any of the above embodiments. Since the adsorption roller 100 according to the embodiment of the utility model has the above technical effects, the winding device according to the embodiment of the utility model also has corresponding technical effects, that is, the chamber 211 in the adsorption block 20 can be formed into a negative pressure environment by using a vacuum assembly, and the opening 212 on the adsorption block 20 and the accommodating cavity 121 on the roller body 10 are connected with the adsorption port 122, so that a pressure difference can be formed inside and outside the adsorption port 122, so that the air pressure inside the adsorption roller 100 is lower than the air pressure outside the adsorption roller 100, so that the pole ear is firmly attached to the outer peripheral surface of the roller body 10 and transmitted downstream to avoid the pole ear from folding.

[0107] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A suction roller, characterized in that: include: A roller body, wherein the axis of the roller body extends along a first direction, a receiving cavity is provided in the roller body, and a suction port communicating with the receiving cavity is provided on the outer peripheral surface of the roller body; An adsorption block, wherein at least a portion of the adsorption block is disposed in the accommodating cavity, a chamber is disposed in the adsorption block, an opening and a connecting port are disposed on the outer surface of the adsorption block, the opening communicates with the chamber and the adsorption port, and the connecting port is used to connect a vacuum pumping component.

2. The adsorption roller according to claim 1, characterized in that: The opening is formed as an arc-shaped opening extending along the circumferential direction of the roller body, and both ends of the opening are spaced apart along the circumferential direction of the roller body.

3. The adsorption roller according to claim 2, characterized in that: The arc of the opening is 80° to 100°.

4. The adsorption roller according to claim 2, characterized in that: There are multiple suction ports, at least two of which are arranged at intervals along the circumference of the roller body, and the opening is connected to at least one of the multiple suction ports.

5. The adsorption roller according to claim 1, characterized in that: At least two of the plurality of adsorption ports are arranged along the first direction.

6. The adsorption roller according to claim 1, characterized in that: There are multiple openings, and the multiple openings are arranged at intervals along the first direction.

7. The adsorption roller according to claim 1, characterized in that: Also includes: The mounting shaft has an axis extending along the first direction, the adsorption block is connected to the mounting shaft, and the roller body is rotatably arranged on the mounting shaft around the axis of the mounting shaft.

8. The adsorption roller according to claim 7, characterized in that: The adsorption block comprises: A body, the body is annular, at least a portion of the body is accommodated in the accommodating cavity, the outer peripheral surface of the body is spaced apart from the inner wall surface of the accommodating cavity, the chamber is arranged in the body, and the opening is arranged on the outer peripheral surface of the body; A locking portion, the locking portion being arranged at one end of the body in the first direction, the locking portion being located outside the accommodating cavity, and the locking portion being arranged on the mounting shaft; A locking member is connected to the locking portion to lock the locking portion to the installation shaft.

9. The adsorption roller according to claim 8, characterized in that: The locking portion is rotatable around the axis of the installation shaft, and the locking piece is detachably connected to the locking portion.

10. The adsorption roller according to claim 8, characterized in that: The connecting port is disposed at one end of the body close to the locking portion.

11. The adsorption roller according to claim 7, characterized in that: The roller body comprises: A roller, the roller extending along the first direction, the roller having a cavity penetrating along its own axial direction; Two end covers are respectively rotatably connected to the mounting shaft, the two end covers are arranged at two ends of the roller and close the cavity, and the accommodating cavity is arranged in at least one of the two end covers.

12. The adsorption roller according to claim 11, characterized in that: Also includes: A dustproof ring is arranged between the end cover and the mounting shaft.

13. The adsorption roller according to claim 1, characterized in that: The accommodating cavity and / or the chamber are annular in shape.

14. A winding device, characterized in that: include: The adsorption roller according to any one of claims 1 to 13.

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