Belt wheel driving device of roll shaft and coating equipment

Abstract

The utility model relates to a belt wheel driving device of a roll shaft and coating equipment, the belt wheel driving device of the roll shaft comprises a flattening roll and a driving device installed on the flattening roll, the driving device comprises a first fixing sleeve, a second fixing sleeve and a belt wheel, the belt wheel comprises two semi-cylindrical connecting blocks, and the first fixing sleeve is connected with the second fixing sleeve. The two connecting blocks are detachably connected to the flattening roller through positioning pieces, the first fixing sleeve is connected to the flattening roller in a sleeving mode and fixed through a connecting piece, one end of the belt wheel is connected into the first fixing sleeve in a screwed mode, and the other end of the belt wheel is connected into the second fixing sleeve in a screwed mode. The coating equipment comprises the belt wheel driving device, and the belt wheel driving device of the roller shaft and the coating equipment solve the problem that when a belt and a belt wheel are replaced, only the belt and the belt wheel need to be detached, the whole flattening roller does not need to be detached, the operation is convenient, and the detaching time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive film production, in particular to a roller pulley driving device and film coating equipment. Background Art

[0002] With the rapid development of the global new energy industry, lithium-ion batteries are widely used in energy storage and automobiles due to their high energy density and good cycle performance. However, the frequent occurrence of accidents such as battery fires has made lithium-ion battery safety the most basic demand of battery products, among which internal short circuit of the battery is the most important cause of safety problems. For power batteries, external stress such as collision and extrusion is one of the main causes of battery short circuit fire.

[0003] The new composite copper foil and aluminum foil current collector has a multi-layer composite structure of "polymer substrate intermediate layer + thin conductive metal layer". When a short circuit occurs in the battery, it can provide a large resistance through fusing and insulation to cut off or reduce the short-circuit current in a short time, effectively preventing thermal runaway of the battery and improving battery safety.

[0004] The composite current collector substrate is PET / PP, and copper and aluminum plating are achieved using a winding coating process. However, the traditional winding coating substrate is thicker (more than 20μm), the coating thickness is thinner (less than 200nm) and is single-sided coating. During coating, the substrate is relatively less heated, and the film can be formed in one time, and the film surface appearance is better. The composite current collector coating substrate is 6μm or even thinner 4.5μm, the coating thickness reaches 1000nm and is double-sided coating.

[0005] In order to improve the coating efficiency, the aluminum composite current collector adopts the evaporation coating process. The substrate is thin, and it expands and contracts during drum plating. It is difficult to use back cooling, and wrinkles are very easy to occur. Therefore, a suspension coating process is used. In order to avoid evaporation and heat melting, high-speed multiple film formation is adopted, and the film surface is cooled by cold drum after coating. As the aluminum composite current collector expands and contracts during coating, it is difficult to flatten the film surface and wrinkles occur. As the number of coating times increases, the appearance of the film surface becomes worse and worse. The flattening device used in the prior art includes a flattening roller, which is used to reduce the wrinkling of the film. In use, the speed difference needs to be adjusted for film movement. The three factors for adjusting the speed difference are the diameter of the flattening roller, the pulley and the belt. In order to save production costs, the pulley and the belt are often replaced. In the original method, when replacing the belt and the pulley, the flattening roller installed in the equipment needs to be disassembled to replace the pulley and the belt. This method is very cumbersome, and the disassembly and installation time is long and the efficiency is low. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a roller pulley drive device and a coating device, so that when replacing the belt and the pulley, only the belt and the pulley need to be removed without disassembling the entire flattening roller, thereby reducing the disassembly time and facilitating operation.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A pulley drive device for a roller shaft comprises a flattening roller and a drive device installed on the flattening roller, the drive device comprises a first fixed sleeve, a second fixed sleeve and a pulley, the pulley comprises two semi-cylindrical connecting blocks, the two connecting blocks are detachably connected to the flattening roller via positioning pieces, the first fixed sleeve is sleeved on the flattening roller and fixed via a connecting piece, one end of the pulley is screwed into the first fixed sleeve, and the other end of the pulley is screwed into the second fixed sleeve.

[0009] In the above structure, the connecting block is provided with a belt groove for installing a belt, and the rotation of the belt can drive the flattening roller to rotate.

[0010] In the above structure, the belt groove is a triangular groove, a triangular belt is installed in the triangular groove, and the shape of the triangular groove matches the cross-sectional shape of the triangular belt.

[0011] In the above structure, the connecting member is a fixing screw, and the first fixing sleeve is connected to the flattening roller via three fixing screws arranged at intervals.

[0012] In the above structure, the positioning member is a positioning pin, and the two connecting blocks are connected together by two positioning pins.

[0013] In the above structure, the first fixing sleeve and the second fixing sleeve are both provided with internal threads, both ends of the connecting block are provided with external threads, and the connecting block is respectively connected to the first fixing sleeve and the second fixing sleeve through the external threads.

[0014] In the above structure, bosses are provided at both ends of the connection block, and the external threads are arranged on the bosses.

[0015] In the above structure, the pulley is provided with a first slot hole, and the first slot hole is arranged on the boss.

[0016] In the above structure, the second fixing sleeve is provided with a second slot hole, and the second fixing sleeve is tightened by a flange wrench through the second slot hole.

[0017] The utility model also provides a coating device, which comprises the above-mentioned pulley driving device.

[0018] The beneficial effects of the utility model are as follows: a pulley driving device and a coating device for a roller shaft are provided, wherein two semi-cylindrical connecting blocks are formed into a complete pulley through a positioning pin, and the pulley is stably installed on the end of the flattening roller through a first fixing sleeve and a second fixing sleeve, and the flattening roller is driven to rotate under the action of a belt. When the pulley and the belt need to be replaced, only the belt and the pulley need to be removed without removing the entire flattening roller, which is convenient to operate and reduces the disassembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural side view of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a part of the structure of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the pulley of the utility model;

[0024] Figure 5 This is an exploded view of the structure of the pulley of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the connecting block in the utility model.

[0026] Among them: 1-flattening roller, 2-first fixed sleeve, 3-second fixed sleeve, 4-pulley, 5-positioning piece, 6-second slot hole, 7-connecting piece, 41-connecting block, 42-belt groove, 43-positioning groove, 44-boss, 45-first slot hole. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0028] like Figure 1 , Figure 3 and Figure 5 As shown, the utility model provides a pulley drive device for a roller shaft, comprising a flattening roller 1 and a drive device installed on the flattening roller 1, the drive device comprising a first fixed sleeve 2, a second fixed sleeve 3 and a pulley 4, the pulley 4 comprising two semi-cylindrical connecting blocks 41, the two connecting blocks 41 are detachably connected to the flattening roller 1 through a positioning member 5, the positioning member 5 is a positioning pin, the pulley 4 is detachably connected to the flattening roller 1 through the positioning pin, when replacing the belt and the pulley 4, only the belt and the pulley 4 need to be removed for replacement, and the entire flattening roller 1 does not need to be removed, which is convenient to operate and reduces the time for disassembly. The first fixed sleeve 2 is sleeved on the flattening roller 1 and fixed by a connecting member 7, the connecting member 7 is a fixing screw, the first fixed sleeve 2 is connected to the flattening roller 1 by three fixing screws arranged at intervals, one end of the pulley 4 is screwed into the first fixed sleeve 2, and the other end of the pulley 4 is screwed into the second fixed sleeve 3.

[0029] In the above structure, if Figure 2 and Figure 6 As shown, the connecting block 41 is provided with a belt groove 42 for installing a belt, and the rotation of the belt can drive the flattening roller 1 to rotate. The belt groove 42 is a triangular groove, and a triangular belt is installed in the triangular groove. The shape of the triangular groove matches the cross-sectional shape of the triangular belt to ensure that the belt does not slide and fall off during operation, and can effectively transmit power. The transmission efficiency of the triangular belt is higher than that of the flat belt, and the life of the triangular belt is longer than that of the flat belt. It can better reduce replacement, and the installation and maintenance are convenient and the maintenance cost is low. In the above structure, the positioning member 5 is a positioning pin, and the two connecting blocks 41 are connected together by two positioning pins. The two positioning pins are symmetrically arranged about the flattening roller 1. The two connecting blocks 41 are provided with a positioning groove 43 that matches the positioning pin. Through the cooperation of the positioning pin and the positioning groove 43, the two connecting blocks 41 are combined into a complete pulley 4, and the belt is installed in the belt groove 42. Under the action of the belt, the flattening roller 1 is driven to rotate.

[0030] In the above structure, if Figure 1 , Figure 4 and Figure 6As shown, the first fixing sleeve 2 and the second fixing sleeve 3 are both provided with internal threads, and both ends of the connecting block 41 are provided with external threads, which are respectively connected to the first fixing sleeve 2 and the second fixing sleeve 3 through the external threads. In the above structure, both ends of the connecting block 41 are provided with bosses 44, and the external threads are arranged on the bosses 44. The pulley 4 is provided with a first slot hole 45, and the first slot hole 43 is arranged on the boss 44 of the connecting block 41. The second fixing sleeve 3 is provided with a second slot hole 6, and the first slot hole 45 is arranged on the boss 44. In this embodiment, three first slot holes 45 are arranged at intervals on the boss 44, and six second slot holes 6 are evenly arranged on the second fixing sleeve 3. The pulley 4 and the second fixing sleeve 3 are tightened respectively through the first slot hole 45 and the second slot hole 6 with a flange wrench in turn to prevent the pulley 4 and the second fixing sleeve 3 from loosening and affecting the transmission efficiency.

[0031] The utility model also provides a coating device, which comprises the above-mentioned belt wheel driving device, wherein the flattening roller is installed on the coating device.

[0032] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pulley drive device for a roller shaft, characterized in that: It includes a flattening roller and a driving device installed on the flattening roller, the driving device includes a first fixed sleeve, a second fixed sleeve and a pulley, the pulley includes two semi-cylindrical connecting blocks, the two connecting blocks are detachably connected to the flattening roller through positioning pieces, the first fixed sleeve is sleeved on the flattening roller and fixed by a connecting piece, one end of the pulley is screwed into the first fixed sleeve, and the other end of the pulley is screwed into the second fixed sleeve.

2. A pulley drive device for a roller shaft according to claim 1, characterized in that: The first fixing sleeve and the second fixing sleeve are both provided with internal threads, and both ends of the connecting block are provided with external threads, and the connecting block is respectively connected to the first fixing sleeve and the second fixing sleeve through the external threads.

3. A pulley drive device for a roller shaft according to claim 2, characterized in that: Both ends of the connection block are provided with bosses, and the external threads are arranged on the bosses.

4. A pulley drive device for a roller shaft according to claim 3, characterized in that: The pulley is provided with a first slot hole, and the first slot hole is arranged on the boss.

5. A pulley drive device for a roller shaft according to any one of claims 1 to 4, characterized in that: The connecting block is provided with a belt groove for installing a belt, and the rotation of the belt can drive the flattening roller to rotate.

6. A pulley drive device for a roller shaft according to claim 5, characterized in that: The belt groove is a triangular groove, in which a triangular belt is installed, and the shape of the triangular groove matches the cross-sectional shape of the triangular belt.

7. A pulley drive device for a roller shaft according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The connecting member is a fixing screw, and the first fixing sleeve is connected to the flattening roller via three fixing screws arranged at intervals.

8. A pulley drive device for a roller shaft according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The positioning member is a positioning pin, and the two connecting blocks are connected together by two positioning pins.

9. A pulley drive device for a roller shaft according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The second fixing sleeve is provided with a second slot hole, and the second fixing sleeve is tightened by a flange wrench through the second slot hole.

10. A coating device, characterized in that: The coating equipment comprises the pulley drive device according to any one of claims 1-9.

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