Automatic fine adjustment device of coating machine

Abstract

The utility model discloses an automatic fine adjustment device of a coating machine, which comprises a fixed frame, a driving mechanism and an oil-free bushing are arranged on the fixed frame, the driving mechanism is in driving connection with a ball screw, a spline housing is arranged on the ball screw, a connecting sleeve is arranged on the spline housing, and the oil-free bushing is arranged on the connecting sleeve. The connecting sleeve is connected with the oil-free bushing in a penetrating manner, one end, far away from the spline housing, of the connecting sleeve is connected with a micrometer knob rod, and the tail end of the micrometer knob rod extends to the outer side of the connecting sleeve. The driving mechanism drives the ball screw to rotate, so that the connecting sleeve is driven to move up and down along with the spline housing, then the micrometer knob rod is driven to move up and down along with the connecting sleeve, the tail end of the micrometer knob rod can be in contact with a target product, and then the thickness of a coating layer is measured. The transmission structure has the advantages of being high in transmission precision, high in transmission efficiency, low in noise, long in service life and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to an automatic fine-tuning device for coating machines. Background Art

[0002] In the production process of new energy batteries, the coating machine can firmly attach the positive and negative active materials to the conductive agent to avoid excessive accumulation or loose falling, thereby improving the performance and stability of the battery. However, the stability of the coating thickness has always been a problem.

[0003] When the coating machine coats the positive and negative active materials on the battery, the distance between the coating part of the coating machine and the battery is difficult to control, which can easily lead to inconsistent thickness of the adhesive layer coated on the battery, thus having a significant impact on the performance of the battery. Existing coating machines have poor control over coating thickness, and the coating operation is performed after the position of the coating part of the coating machine is manually adjusted. The adjustment accuracy is not very ideal, and the efficiency is also low. Utility Model Content

[0004] The utility model aims to solve the above problems and designs an automatic fine-tuning device for a coating machine, which solves the problem of unstable coating thickness caused by poor coating thickness adjustment accuracy of the coating machine.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: an automatic fine-tuning device for a coating machine, comprising a fixed frame, on which a driving mechanism and an oil-free bushing are arranged, wherein the driving mechanism is connected to a ball screw driving device, a spline sleeve is arranged on the ball screw, a connecting sleeve is arranged on the spline sleeve, the connecting sleeve is interlaced and connected with the oil-free bushing, a micrometer knob rod is connected to one end of the connecting sleeve away from the spline sleeve, and the end of the micrometer knob rod extends to the outside of the connecting sleeve.

[0006] Preferably, the fixing frame comprises an upper fixing plate and a lower fixing plate, and the upper fixing plate and the lower fixing plate are connected by a connecting rod.

[0007] Preferably, the driving mechanism is vertically mounted and fixed on an upper fixed plate, and the oil-free bushing is mounted and fixed on a lower fixed plate.

[0008] Preferably, the driving mechanism adopts a servo motor, and the output end of the servo motor is connected to the ball screw through a coupling.

[0009] Preferably, the micrometer knob rod has a head and a tail, the head is plugged into the lower end of the connecting sleeve, and the tail extends to the outside of the connecting sleeve.

[0010] Preferably, the lower end of the spline sleeve is inserted into the inner side of the connecting sleeve and is fixedly connected to the connecting sleeve, and the lower end of the ball screw extends into the inner side of the connecting sleeve.

[0011] Compared with the prior art, the beneficial effects are:

[0012] In the utility model, the driving mechanism drives the ball screw to rotate, thereby driving the connecting sleeve to move up and down together with the spline sleeve, and then driving the micrometer knob rod to move up and down together with the connecting sleeve. The end of the micrometer knob rod can contact the target product, and then measure the thickness of the coating layer, so that the coating machine can accurately adjust the coating thickness. The transmission structure has the advantages of high transmission accuracy, high transmission efficiency, low noise, long service life, etc. The movement accuracy of the micrometer knob rod can be well controlled under the precise drive of the driving mechanism, thereby achieving the requirement of precision adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the automatic fine-tuning device in the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the automatic fine-tuning device in the utility model;

[0015] Figure 3 It is a schematic diagram of the installation structure of the automatic fine-tuning device.

[0016] In the figure, 1, driving mechanism; 2, fixed frame; 21, upper fixed plate; 22, lower fixed plate; 23, connecting rod; 3, oil-free bushing; 4, micrometer knob rod; 41, head; 42, tail; 5, coupling; 6, spline sleeve; 7, ball screw; 8, connecting sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 2 As shown, a preferred embodiment of the utility model proposes an automatic fine-tuning device for a coating machine, which mainly includes components such as a fixed frame 2 and a driving mechanism 1, wherein the fixed frame 2 is composed of a connecting rod 23 and two fixed plates, including an upper fixed plate 21 and a lower fixed plate 22, the upper fixed plate 21 and the lower fixed plate 22 are arranged in parallel up and down, and are fixedly connected by multiple connecting rods 23. In this embodiment, a plurality of driving mechanisms 1 arranged side by side are arranged on the upper fixed plate 21, which are used to drive the micrometer knob rod 4 to move up and down.

[0019] In this embodiment, the driving mechanism 1 adopts a servo motor, which is vertically fixed on the upper fixed plate 21. The output end of the servo motor is connected to the ball screw 7 through a coupling 5, and a spline sleeve 6 is provided on the ball screw 7. The spline sleeve 6 and the ball screw 7 together constitute a spline transmission assembly. When the driving motor is working, it can drive the ball screw 7 to rotate through the coupling 5, and when the ball screw 7 rotates, it can drive the spline sleeve 6 to move up and down.

[0020] In this embodiment, the driving mechanism 1 can not only adopt a servo motor, but also adopt other high-precision motors or other electrical transmission structures.

[0021] like Figure 2 , Figure 3 As shown, a plurality of oil-free bushings 3 are arranged side by side on the lower fixed plate 22, each of the oil-free bushings 3 corresponds to the corresponding driving mechanism 1 one by one, and a connecting sleeve 8 is fixedly arranged on the spline sleeve 6, and the upper end of the connecting sleeve 8 is fixedly connected to the spline sleeve 6. At the same time, the lower end of the ball screw 7 passes through the spline sleeve 6 and can extend to the interior of the connecting sleeve 8, and the connecting sleeve 8 is connected with the oil-free bushing 3 through the upper and lower ends. The oil-free bushing 3 plays a guiding role. The ball screw 7 drives the spline sleeve 6 to move up and down during the rotation, thereby driving the connecting sleeve 8 to move up and down along the oil-free bushing 3.

[0022] like Figure 2 As shown, a micrometer knob rod 4 is provided at the lower end of the connecting sleeve 8, and the micrometer knob rod 4 has a head 41 and a tail 42. The head 41 of the micrometer knob rod 4 extends into the interior of the connecting sleeve 8 and is fixedly connected to the connecting sleeve 8. The micrometer knob rod 4 will move up and down with the connecting sleeve 8 to measure the coating thickness, and the tail 42 of the micrometer knob rod 4 is linked with the coating thickness adjustable mechanism on the coater to feed back the measured thickness to the coater, and the coater adjusts the coating thickness.

[0023] The transmission of the ball screw 7 and the spline sleeve 6 has the advantages of high transmission accuracy, high transmission efficiency, low noise, long service life, and allowing a certain coaxiality deviation, which can greatly improve the accuracy of coating thickness adjustment.

[0024] During specific operation, the coating machine first measures the thickness after coating and feeds back to the system. The system calculates the coating position where the coating thickness needs to be adjusted based on the feedback result, and then starts the servo motor. The servo motor rotates and drives the ball screw 7 to rotate through the coupling 5, and then drives the connecting sleeve 8 to move up and down with the spline sleeve 6. The coating thickness is accurately measured through the micrometer knob rod 4, and the coating thickness adjustable mechanism on the coating machine equipment will work together with the micrometer knob rod 4 to automatically adjust the coating thickness.

[0025] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. An automatic fine-tuning device for a coating machine, comprising a fixed frame (2), characterized in that: The fixed frame (2) is provided with a driving mechanism (1) and an oil-free bushing (3), wherein the driving mechanism (1) is drivingly connected to a ball screw (7), the ball screw (7) is provided with a spline sleeve (6), the spline sleeve (6) is provided with a connecting sleeve (8), the connecting sleeve (8) is interlacedly connected with the oil-free bushing (3), and the end of the connecting sleeve (8) away from the spline sleeve (6) is connected to a micrometer knob rod (4), and the end of the micrometer knob rod (4) extends to the outside of the connecting sleeve (8).

2. The automatic fine-tuning device for a coating machine according to claim 1, characterized in that: The fixed frame (2) comprises an upper fixed plate (21) and a lower fixed plate (22), and the upper fixed plate (21) and the lower fixed plate (22) are connected via a connecting rod (23).

3. The automatic fine-tuning device for a coating machine according to claim 2, characterized in that: The driving mechanism (1) is vertically mounted and fixed on an upper fixing plate (21), and the oil-free bushing (3) is mounted and fixed on a lower fixing plate (22).

4. The automatic fine-tuning device for a coating machine according to claim 3, characterized in that: The driving mechanism (1) adopts a servo motor, and the output end of the servo motor is connected to the ball screw (7) through a coupling (5).

5. The automatic fine-tuning device for a coating machine according to claim 1, characterized in that: The micrometer knob rod (4) comprises a head portion (41) and a tail portion (42), the head portion (41) being plugged into the lower end of the connecting sleeve (8), and the tail portion (42) extending to the outside of the connecting sleeve (8).

6. The automatic fine-tuning device for a coating machine according to claim 1, characterized in that: The lower end of the spline sleeve (6) is inserted into the inner side of the connecting sleeve (8) and is fixedly connected to the connecting sleeve (8), and the lower end of the ball screw (7) extends into the inner side of the connecting sleeve (8).

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