Deviation rectifying roller and coating machine

Abstract

The utility model belongs to the technical field of coating machines, and particularly relates to a deviation rectifying roller which comprises a roller body, a plurality of grooves are formed in the surface of the roller body, and a plurality of negative pressure holes are formed in the grooves. The roller shafts are arranged at the two ends of the roller body in the axial direction; the negative pressure connector is mounted on the roller shaft, and the negative pressure hole is communicated with the negative pressure connector; the deviation rectifying roller has the beneficial effects that the foil can be adsorbed to the roller surface through the negative pressure holes in the surface of the roller body, so that the foil is tightly attached to the surface of the roller body, the friction force between the foil and the roller body is increased, the deviation rectifying effect of the deviation rectifying roller is enhanced, the efficiency of rectifying and correcting the foil breadth is improved, and the risk of dislocation and scrap during double-sided coating is reduced; the plurality of grooves are formed in the surface of the roller body, and the negative pressure holes are formed in the grooves, so that the negative pressure holes are not in direct contact with the foil, the foil is prevented from being scratched by burrs and the like generated by long-time use of the negative pressure holes, and the foil is further prevented from being damaged and scrapped.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating machines, in particular to a deviation-correcting roller and a coating machine. Background Art

[0002] In the production and coating process of secondary batteries, in order to prevent the foil from shifting in position due to slightly uneven tension on both sides after the roll is changed, a correction mechanism is usually set to correct the position of the foil to keep the foil in a centered state. The mechanical parts of the correction mechanism in the current coating machine usually use ordinary smooth rollers. Due to the small friction between the roller surface and the foil, the correction effect is not good, which can easily cause the foil to be unable to be corrected to the original centered position, thereby causing subsequent coating misalignment and causing the foil to be scrapped.

[0003] In the prior art CN219823120U correction mechanism with adsorption and traction function, adsorption holes are provided on the correction roller so that the foil is adsorbed and adhered to the surface of the correction roller. Although the friction between the correction roller and the foil is increased and the correction effect is improved, with the long-term use of the correction roller, the area around the adsorption holes of the correction roller will wear and produce burrs. In the subsequent correction operation, the burrs are easy to scratch the foil and damage the foil, resulting in the subsequent production of battery performance and quality affected. Utility Model Content

[0004] The utility model aims to provide a deviation correction roller and a coating machine in view of the above-mentioned existing technical problems, which can achieve the effect of improving the deviation correction effect and preventing the foil from being damaged.

[0005] In view of this, the utility model provides a deviation correction roller, comprising:

[0006] A roller body, wherein a plurality of grooves are arranged on the surface of the roller body, and a plurality of negative pressure holes are arranged in the grooves;

[0007] Roller shafts, which are arranged at both ends of the roller body along the axial direction;

[0008] A negative pressure joint is installed on the roller shaft, and the negative pressure hole is connected to the negative pressure joint.

[0009] Furthermore, a plurality of grooves are arranged in an array along the axial direction of the roller body.

[0010] Furthermore, a plurality of grooves are arranged in an array along the circumferential direction of the roller body.

[0011] Furthermore, a plurality of negative pressure holes are arranged in a linear array in the groove.

[0012] Furthermore, a negative pressure channel is provided on the roller shaft, and the negative pressure channel is used for communication between the negative pressure hole and the negative pressure joint.

[0013] Further, the negative pressure connector includes:

[0014] A shell body, wherein the shell body is provided with a negative pressure interface;

[0015] A bearing, wherein the bearing is arranged in the housing;

[0016] The roller shaft is rotatably connected to the housing through a bearing.

[0017] Furthermore, the housing comprises:

[0018] A fixing seat, wherein an opening is provided at one end of the fixing seat and a connecting hole is provided at the other end;

[0019] A cover plate, which is mounted on the opening;

[0020] The bearing is arranged in the fixed seat, and the roller shaft is sealed and connected to the connecting hole.

[0021] Furthermore, the cover plate and the fixing seat are detachably connected.

[0022] Furthermore, it also includes a sealing ring, which is arranged between the cover plate and the fixing seat.

[0023] A coating machine, comprising any one of the above-mentioned correction rollers

[0024] The beneficial effects of the utility model are:

[0025] Negative pressure is formed inside the roller body, and the foil can be adsorbed onto the roller surface through the negative pressure holes on the roller surface, allowing the foil to fit closely to the roller surface, increasing the friction between the foil and the roller body, thereby enhancing the correction effect of the correction roller, improving the efficiency of correcting the foil width, and reducing the risk of misalignment and scrapping during double-sided coating.

[0026] A plurality of grooves are provided on the surface of the roller body, and the negative pressure holes are arranged in the grooves so that the negative pressure holes will not directly contact the foil, thereby preventing the negative pressure holes from scratching the foil due to burrs generated due to long-term use, thereby avoiding damage and scrapping of the foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the negative pressure joint in the utility model;

[0029] Figure 3 It is a structural schematic diagram of the negative pressure joint in the utility model from another perspective;

[0030] The symbols in the figure are:

[0031] 1. Roller body; 2. Groove; 3. Negative pressure hole; 4. Roller shaft; 5. Negative pressure interface; 6. Fixed seat; 7. Connection hole; 8. Cover plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] Embodiment 1:

[0035] This embodiment provides a deviation correction roller, including:

[0036] A roller body 1, a surface of which is provided with a plurality of grooves 2, and a plurality of negative pressure holes 3 are provided in the grooves 2;

[0037] Roller shafts 4, which are arranged at both ends of the roller body 1 in the axial direction;

[0038] Negative pressure joint, the negative pressure joint is installed on the roller shaft 4, and the negative pressure hole 3 is connected to the negative pressure joint.

[0039] In the present technical solution, the interior of the roller body 1 is hollowed out, and the several negative pressure holes 3 on the roller body 1 are all connected to the interior of the roller body 1. The interior of the roller body 1 is connected to the negative pressure mechanism through a negative pressure joint. The negative pressure mechanism can be a fan. The fan is started to extract the internal air of the roller body 1, so that negative pressure is formed inside the roller body 1.

[0040] When the deflection correction roller is used in a coating machine, due to the negative pressure formed inside the roller body 1, the foil can be adsorbed onto the roller surface through the negative pressure holes 3 on the surface of the roller body 1, so that the foil and the surface of the roller body 1 are closely fitted, and the friction between the foil and the roller body 1 is increased, thereby enhancing the deflection correction effect of the deflection correction roller on the foil, effectively improving the efficiency of deflection correction and correction of the foil width, and reducing the risk of misalignment and scrapping during double-sided coating.

[0041] like Figure 1 As shown, a plurality of grooves 2 are provided on the surface of the roller body 1, and negative pressure holes 3 are arranged in the grooves 2. Through this structural design, the negative pressure holes 3 will not be in direct contact with the foil material, thereby preventing the negative pressure holes 3 from scratching the foil material due to burrs generated due to long-term use, thereby avoiding damage and scrapping of the foil material and improving practicality.

[0042] Embodiment 2:

[0043] This embodiment provides a deviation correction roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] Furthermore, a plurality of grooves 2 are arranged in an array along the axial direction of the roller body 1 .

[0045] like Figure 1 As shown, in the present technical solution, the groove 2 is designed as a strip structure, and a plurality of strip grooves 2 are arranged in an array along the axial direction of the roller body 1, and a plurality of negative pressure holes 3 are opened in each groove 2. Through this structural design, the adsorption force on the periphery of the correction roller is more evenly distributed, thereby preventing the foil adsorbed on the surface of the correction roller from shifting during the correction process, thereby effectively improving the correction effect of the correction roller.

[0046] Furthermore, a plurality of negative pressure holes 3 are arranged in a linear array in the groove 2. Through this structural design, the adsorption force on the periphery of the correction roller is enhanced, and the distribution uniformity of the adsorption force on the periphery of the correction roller is further improved, so that the foil can be closely attached to the roller body 1 during the correction work, thereby improving the correction effect.

[0047] Embodiment 3:

[0048] Furthermore, a plurality of grooves 2 are arranged in an array along the circumferential direction of the roller body 1 .

[0049] In the present technical solution, the groove 2 is designed as an annular structure, and a plurality of annular grooves 2 are arranged in an array along the circumferential direction of the roller body 1 (not shown in the figure), and a plurality of negative pressure holes 3 are opened in each groove 2. Through this structural design, the adsorption force on the periphery of the correction roller is more evenly distributed, thereby preventing the foil adsorbed on the surface of the correction roller from shifting during the correction process, thereby effectively improving the correction effect of the correction roller.

[0050] Furthermore, a plurality of negative pressure holes 3 are arranged in a linear array in the groove 2. Through this structural design, the adsorption force on the periphery of the correction roller is enhanced, and the distribution uniformity of the adsorption force on the periphery of the correction roller is further improved, so that the foil can be closely attached to the roller body 1 during the correction work, thereby improving the correction effect.

[0051] Embodiment 4:

[0052] This embodiment provides a deviation correction roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] Furthermore, a negative pressure channel is provided on the roller shaft 4, and the negative pressure channel is used for communication between the negative pressure hole 3 and the negative pressure joint.

[0054] Further, the negative pressure connector includes:

[0055] The housing is provided with a negative pressure interface 5;

[0056] A bearing, wherein the bearing is arranged in the housing;

[0057] The roller shaft 4 is rotatably connected to the housing via a bearing.

[0058] In the present technical solution, the roller shaft 4 is rotatably connected to the bearing in the shell to realize the rotation of the roller body 1. A negative pressure channel is provided in the roller shaft 4. The two ends of the negative pressure channel are respectively connected to the interior of the shell and the interior of the roller body 1. The interior of the shell is then connected to the fan through the negative pressure interface 5. The fan is then started to extract the air inside the roller body 1 to form a negative pressure inside the roller body 1, so that the foil can be adsorbed on the surface of the roller body 1 when the deviation correction roller is working.

[0059] like Figure 2 and Figure 3 As shown, the negative pressure interface 5 can be a threaded hole, on which an air pipe joint is installed, and then connected to the fan through the air pipe. Through this structural design, the fan and the negative pressure joint are detachably connected, which is convenient for installation and use by the staff.

[0060] Embodiment 5:

[0061] This embodiment provides a deviation correction roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0062] Furthermore, the housing comprises:

[0063] A fixing seat 6, one end of which is provided with an opening, and the other end of which is provided with a connecting hole 7;

[0064] A cover plate 8, the cover plate 8 is installed on the opening;

[0065] The bearing is arranged in the fixing seat 6 , and the roller shaft 4 is sealedly connected to the connecting hole 7 .

[0066] like Figure 2 and Figure 3 As shown, in the present technical solution, the bearing is installed into the fixing seat 6 through the opening of the fixing seat 6, and then the cover plate 8 is installed on the opening to seal the opening, while the roller shaft 4 is rotatably connected to the bearing in the fixing seat 6 through the connecting hole 7, and the installation position of the roller shaft 4 and the connecting hole 7 is sealed to prevent leakage from affecting the negative pressure effect of the negative pressure hole 3.

[0067] Embodiment 6:

[0068] This embodiment provides a deviation correction roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] Furthermore, the cover plate 8 and the fixing base 6 are detachably connected.

[0070] like Figure 2 and Figure 3 As shown, in the present technical solution, a plurality of threaded mounting holes are provided at the opening of the fixing seat 6, and a uniform number of threaded connection holes which are aligned one by one are provided on the cover plate 8. A detachable connection is achieved between the cover plate 8 and the fixing seat 6 by setting fasteners. This structural design facilitates the installation, use and maintenance of the negative pressure joint, and effectively improves the practicality.

[0071] Furthermore, a sealing ring is included, which is arranged between the cover plate 8 and the fixing seat 6. The sealing ring can be an O-ring, and the O-ring is used to enhance the sealing performance of the connection between the cover plate 8 and the fixing seat 6, thereby further improving the internal sealing performance of the negative pressure joint when in use, and preventing leakage from affecting the adsorption effect of the deviation correction roller.

[0072] Embodiment 7:

[0073] This embodiment provides a coating machine, including the technical solution described in any one of the above embodiments 1-6.

[0074] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A deviation correction roller, characterized in that: include: A roller body (1), wherein a plurality of grooves (2) are provided on the surface of the roller body (1), and a plurality of negative pressure holes (3) are provided in the grooves (2); Roller shafts (4), the roller shafts (4) being arranged at both ends of the roller body (1) along the axial direction; A negative pressure joint, wherein the negative pressure joint is mounted on the roller shaft (4), and the negative pressure hole (3) is connected to the negative pressure joint.

2. The correction roller according to claim 1, characterized in that: The plurality of grooves (2) are arranged in an array along the axial direction of the roller body (1).

3. The correction roller according to claim 1, characterized in that: The plurality of grooves (2) are arranged in an array along the circumferential direction of the roller body (1).

4. The correction roller according to claim 1, characterized in that: A plurality of negative pressure holes (3) are arranged in a linear array in the groove (2).

5. The deviation-correcting roller according to claim 1, characterized in that: The roller shaft (4) is provided with a negative pressure channel, and the negative pressure channel is used for communication between the negative pressure hole (3) and the negative pressure joint.

6. The deviation-correcting roller according to claim 1, characterized in that: The negative pressure connector comprises: A housing, wherein the housing is provided with a negative pressure interface (5); A bearing, wherein the bearing is disposed in the housing; Wherein, the roller shaft (4) is rotatably connected to the housing via a bearing.

7. The deviation-correcting roller according to claim 6, characterized in that: The housing comprises: A fixing seat (6), wherein one end of the fixing seat (6) is provided with an opening, and the other end of the fixing seat (6) is provided with a connecting hole (7); A cover plate (8), wherein the cover plate (8) is mounted on the opening; The bearing is arranged in a fixed seat (6), and the roller shaft (4) is sealedly connected to the connecting hole (7).

8. The deviation-correcting roller according to claim 7, characterized in that: The cover plate (8) and the fixing seat (6) are detachably connected.

9. The deviation-correcting roller according to claim 7, characterized in that: It also includes a sealing ring, which is arranged between the cover plate (8) and the fixing seat (6).

10. A coating machine, characterized in that: The invention comprises the deviation correction roller described in any one of claims 1 to 9.

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