Pressure-adjustable automatic coating assembly and coating equipment

Abstract

The invention discloses a pressure-adjustable automatic coating assembly and coating equipment, the pressure-adjustable automatic coating assembly comprises a mounting base, and a pressure sensor is arranged at the upper end of the mounting base; the coating connecting piece is vertically arranged on the mounting bottom plate, the upper end and the lower end of the coating connecting piece are sunken inwards to form a connecting groove and an inserting groove respectively, the connecting groove and the inserting groove are not communicated with each other, and a coating head is connected in the connecting groove; the transmission shaft is vertically arranged on the mounting bottom plate, at least part of the upper end of the transmission shaft extends into the inserting groove of the coating connecting piece and is in sliding connection with the inserting groove, an elastic piece is arranged in the inserting groove, one end of the elastic piece abuts against the groove bottom of the inserting groove, and the other end of the elastic piece abuts against the upper end of the transmission shaft; the lower end of the transmission shaft abuts against the pressure sensor. Through the connection mode of the coating connecting piece, the elastic piece and the transmission shaft and through real-time collection of the pressure sensor, accurate control over the pressure of a product to be coated in the coating process is achieved, and it is guaranteed that a coating on the end face of the coated product is uniform in thickness and attractive in appearance, and the coating of the product is stable in quality and high in percent of pass.

Description

Technical Field

[0001] This invention belongs to the field of coating machinery technology, specifically, it relates to an automatic coating component and coating equipment with adjustable pressure. Background Technology

[0002] The automatic coating machine for vacuum switch tubes is an automated equipment used to coat the surface of vacuum switch tubes. It can improve coating quality and production efficiency, and reduce human error.

[0003] The existing methods for coating the end faces of cylindrical parts generally involve manual coating. The contact pressure between the coated surfaces depends entirely on the operator's accumulated experience and wrist control. Due to factors such as working hours and intensity, the pressure applied by the operator to the cylindrical parts during coating is constantly changing. Furthermore, the pressure on the end face of the cylindrical part to be coated during the coating process often fails to reach the preset pressure value. Additionally, the coating liquid is manually drawn from the storage tank, and the liquid is not replenished in a timely manner during manual coating, resulting in uneven coating thickness, low coating efficiency, and ultimately, an inability to guarantee the quality of the product coating.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic coating component with adjustable pressure. By connecting the coating connector, elastic element and transmission shaft, and using the real-time acquisition of pressure sensor, the pressure of the product to be coated can be precisely controlled during the coating process. During the coating process, the pressure sensor can remain constant, so that the coating thickness of the end face of the coated product is uniform and beautiful, the coating quality of the product is stable and the pass rate is high.

[0006] Another object of the present invention is to provide a coating apparatus.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is to provide an automatic coating component with adjustable pressure, including a mounting base with a pressure sensor disposed on its upper end; The coating connector is vertically mounted on the mounting base. The upper and lower ends of the coating connector are recessed inward to form a connecting groove and a plug groove, respectively. The connecting groove and the plug groove are not connected to each other. The coating head is connected in the connecting groove. The drive shaft is vertically mounted on the mounting base, with its upper end at least partially extending into the insertion groove of the coated connector and slidingly connected thereto. An elastic element is provided in the insertion groove, with one end abutting against the bottom of the groove and the other end abutting against the upper end of the drive shaft. The lower end of the drive shaft abuts against the pressure sensor. When the product to be coated is squeezed through the coating head, the pressure is transmitted to the pressure sensor in sequence through the elastic element and the drive shaft.

[0008] Furthermore, the side wall of the coated connector is provided with a vertically extending elongated pin hole, and the side of the drive shaft near the coated connector is provided with a pin hole. The coated connector and the drive shaft are connected by passing a fixing pin through the elongated pin hole and the pin hole in sequence.

[0009] Furthermore, a flow guide umbrella is fixedly fitted on the side of the coated connector near the drive shaft, and its flow guide surface gradually slopes downward from the outer peripheral wall of the coated connector.

[0010] Furthermore, it also includes a coating drive module, disposed on the mounting base, for driving the drive shaft to rotate about its axial direction, wherein the coating drive module includes, A synchronous belt pulley assembly is mounted on a mounting base, and the drive shaft is connected to the synchronous belt pulley assembly; The drive motor has its drive end connected to the synchronous belt pulley assembly, which is used to drive the synchronous belt pulley assembly to rotate the transmission shaft around its axis.

[0011] Furthermore, the synchronous belt pulley assembly includes, Two synchronous pulleys, one of which has its axle connected to the drive end of the drive motor, and the other of which is connected to the transmission shaft; A transmission belt is wound around the periphery of two synchronous pulleys to drive the rotation of the two synchronous pulleys; Preferably, a linear bearing is coaxially mounted on another synchronous pulley, and the drive shaft passes through the linear bearing.

[0012] Furthermore, the mounting base is also provided with a thrust ball bearing housing, in which a thrust ball bearing is installed, and an insulating block is provided between the thrust ball bearing and another synchronous pulley.

[0013] A coating apparatus for use with any of the pressure-adjustable automatic coating components described above, comprising: Workbench; The X-axis linear motion module is set on the worktable, and the Z-axis linear motion module is connected to it, which is used to drive the Z-axis linear motion module to move laterally. The gripper module, connected to the Z-axis linear motion module, is used to hold the product to be coated. The Z-axis linear motion grounding module includes at least a grounding contact, positioned directly above the product to be coated.

[0014] Furthermore, it also includes, A coating liquid storage tank is set in the workbench, and a liquid supply pump is connected to its exterior. The coating liquid storage tank, the liquid supply pump and the coating head are connected through a liquid supply pipeline to form a liquid supply channel. The collection box, located on the mounting base, is used to collect the coating liquid during the coating process. The collection box and the coating liquid storage tank are connected by a return pipe to form a return channel.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: (1) The present invention uses the connection method of coating connectors, elastic parts and transmission shafts, and the real-time acquisition of pressure sensors to achieve precise control of the pressure of the product to be coated during the coating process. Since the pressure sensor can remain constant during the coating process, the thickness of the coating on the end face of the coated product is uniform and beautiful, the coating quality of the product is stable and the pass rate is high.

[0016] (2) The present invention uses a fixing pin to be inserted laterally into the corresponding pin holes on the coating connector and the drive shaft, thereby quickly assembling and fixing the coating connector and the drive shaft.

[0017] (3) The present invention provides a flow guide umbrella cover fixedly fitted near the lower end of the coating connector. The flow guide surface protrudes from the outer peripheral wall of the coating connector and extends downward at an angle. This ensures that when the coating liquid drips downward, it will not flow onto the drive shaft and other components below, thus avoiding contamination.

[0018] (4) By setting up the X-axis linear motion module, the Z-axis linear motion module, the gripper module and the Z-axis linear motion grounding module to cooperate with each other, the present invention can ensure that the gripper module moves accurately to the product to be coated and makes accurate contact with the grounding contact, thereby ensuring that the coating operation can be performed on the product to be coated.

[0019] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the coating equipment of the present invention; Figure 2 This is a partial schematic diagram of the coating equipment of the present invention; Figure 3 This is an exploded view of the coating assembly of the present invention; Figure 4 This is a schematic diagram of the coating assembly of the present invention; Figure 5 This is a schematic diagram of the coating station of the present invention.

[0021] In the picture: 1. Workbench; 2. X-axis linear motion module; 3. Z-axis linear motion module; 4. Z-axis linear motion grounding module; 41. Grounding contact; 5. Automatic coating assembly; 501. Coating head; 502. Coating connector; 503. Long pin hole; 504. Flow guide umbrella; 505. Elastic element; 506. Drive shaft; 507. Fixing pin; 508. Drive motor; 509. Angle sensor switch mounting plate; 510. Inductive switch; 511. Sensing plate; 512. Tensioner seat; 513. Linear bearing; 514. Synchronous belt pulley assembly; 515. Insulating block; 516. Thrust ball bearing; 517. Thrust ball bearing seat; 518. Pressure sensor; 519. Sensor mounting base plate; 520. Collection box; 521. Motor mounting base plate; 522. Mounting vertical shaft; 523. Vertical shaft connecting shaft seat; 6. Gripper module; 7. Coating the storage tank; 8. Liquid supply pump; 9. Liquid supply pipeline; 10. Return flow pipe; A. Workstation 1; B. Workstation 2; C. Workstation 3; D, Workstation 4.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] like Figures 1 to 5 As shown, the pressure-adjustable automatic coating assembly 5 of the present invention includes a mounting base, wherein the mounting base includes at least a motor mounting base plate 521 and a sensor mounting base plate 519. The sensor mounting base plate 519 is bent into a U-shape, and multiple mounting holes are provided on the side wall of the vertical opening of the U-shape. The motor mounting base plate 521 is also provided with matching mounting holes. The sensor mounting base plate 519 is fixed to the bottom of the motor mounting base plate 521 by screws or bolts. A pressure sensor 518 is provided on the bottom of the U-shaped groove of the sensor mounting base plate 519.

[0027] The coating connector 502 is vertically mounted on the mounting base. The upper and lower ends of the coating connector 502 are recessed inward to form a connecting groove and a plug groove, respectively. The connecting groove and the plug groove are not connected to each other. The coating head 501 is connected in the connecting groove. The drive shaft 506 is vertically mounted on the mounting base, and its upper end extends at least partially into the insertion groove of the coated connector 502 and is slidably connected to it. An elastic element 505 is provided in the insertion groove, one end of which abuts against the bottom of the insertion groove, and the other end abuts against the upper end of the drive shaft 506. The lower end of the drive shaft 506 abuts against the pressure sensor 518. When the product to be coated is squeezed to the coating head 501, the pressure is transmitted to the pressure sensor 518 in sequence through the elastic element 505 and the drive shaft 506.

[0028] In this invention, the coating connector 502 is a tubular structure, vertically mounted on the mounting base. The coating connector 502 can be divided into two open tubular components, which are joined together to form an integral structure. The diameter of the upper tubular component is larger than that of the lower tubular component. Preferably, the coating connector 502 has a connecting groove and an insertion groove at its upper and lower ends, respectively. The coating head 501 is inserted into the connecting groove and threaded thereto. A through-hole inlet is located on one side of the connecting groove. Because the diameter of the upper tubular component is larger than that of the lower tubular component, the internal space of the connecting groove is maximized, allowing for the storage of more coating liquid and its delivery to the coating head 501. Alternatively, the coating head 501 and the connecting groove can also be fixed by insertion.

[0029] The drive shaft 506 is a vertically arranged rod, the upper end of which can freely extend into the insertion groove in the coating connector 502, allowing the drive shaft 506 to slide freely within the coating connector 502. An elastic element 505, which extends and retracts axially along the drive shaft 506, is provided in the insertion groove. The two ends of the elastic element 505 abut against the bottom of the insertion groove and the end of the rotating shaft, respectively. During coating operations, when the end face of the product to be coated moves onto the coating head 501, the coating connector 502 is pressed and vertically displaced relative to the drive shaft 506. The elastic element 505 deforms and transmits the pressure to the pressure sensor 518 located below the drive shaft 506. The pressure sensor 518 can then collect the corresponding pressure value in real time. When the pressure reaches the preset pressure value, the product to be coated stops moving, meaning the preset pressure between the coating head 501 and the product to be coated is reached. By using the connection method of coating connector 502, elastic element 505 and transmission shaft 506, and by utilizing the real-time acquisition of pressure sensor 518, the pressure of the product to be coated can be precisely controlled during the coating process. Since the pressure sensor 518 can remain constant during the coating process, the thickness of the coating on the end face of the coated product is uniform and beautiful, the coating quality of the product is stable, and the pass rate is high.

[0030] Furthermore, the side wall of the coating connector 502 is provided with a vertically extending elongated pin hole 503, and the drive shaft 506 is provided with a pin hole on the side near the coating connector 502. The coating connector 502 and the drive shaft 506 are connected by a fixing pin 507 passing through the elongated pin hole 503 and the pin hole in sequence.

[0031] In this invention, the coating connector 502 has a strip-shaped milled surface milled on its outer peripheral wall near the drive shaft 506. A through-hole elongated pin hole 503 is provided on the coating connector 502 corresponding to the strip-shaped milled surface, wherein the length direction of the elongated pin hole 503 is vertically oriented. A pin hole is provided on the side wall of the drive shaft 506 near its upper end. A fixing pin 507 is inserted laterally into the corresponding pin holes on the coating connector 502 and the drive shaft 506, thereby quickly assembling and fixing the coating connector 502 and the drive shaft 506. Preferably, after the fixing pin 507 is inserted into the elongated pin hole 503 and the pin hole, under the action of the elastic element 505, the fixing pin 507 is positioned at the middle or slightly below the middle of the length of the elongated pin hole 503. This ensures that when the coating head 501 is subjected to pressure, the coating connector 502 can slide relative to the drive shaft 506, allowing it to have displacement space. Preferably, the elastic element 505 is a compression spring.

[0032] Furthermore, a flow guide umbrella 504 is fixedly sleeved on the side of the coated connector 502 near the drive shaft 506, and its flow guide surface gradually slopes downward from the outer peripheral wall of the coated connector 502.

[0033] In this invention, a flow guide umbrella 504 is fixedly fitted onto the coating connector 502 near its lower end. The entire flow guide umbrella 504 is conical, and its overall flow guiding surface protrudes from the outer peripheral wall of the coating connector 502 and extends downward at an angle. This ensures that when the coating liquid drips downward, it will not flow onto the drive shaft 506 or other components below it.

[0034] Furthermore, it also includes a coating drive module, disposed on the mounting base, for driving the drive shaft 506 to rotate about its axial direction, wherein the coating drive module includes, Synchronous pulley assembly 514 is mounted on a mounting base, and drive shaft 506 is connected to synchronous pulley assembly 514; The drive motor 508 has its drive end connected to the synchronous pulley assembly 514, and is used to drive the synchronous pulley assembly 514 to drive the transmission shaft 506 to rotate around its axis.

[0035] Two synchronous pulleys, one of which is connected to the drive end of the drive motor 508, and the other is connected to the transmission shaft 506; A transmission belt is wound around the periphery of two synchronous pulleys to drive the rotation of the two synchronous pulleys; Preferably, a linear bearing 513 is coaxially arranged on another synchronous pulley, and the drive shaft 506 passes through the linear bearing 513.

[0036] In this invention, the coating drive module is mounted on the motor mounting base 521. Specifically, the drive motor 508 is mounted on the motor mounting base 521. The synchronous belt pulley assembly 514 includes two synchronous pulleys, a driving pulley and a driven pulley, which are connected by a transmission belt. The drive end of the drive motor 508 is fixedly connected to the axle of the driving pulley, and the driven pulley is connected to the transmission shaft 506. Thus, under the driving action of the drive motor 508, the driven pulley can drive the transmission shaft 506 to rotate, thereby enabling the coating head 501 to rotate around the axial direction of the transmission shaft 506. During the coating process, the coating head 501 can be driven to rotate to achieve comprehensive coating of the end face of the product to be coated, ensuring a more thorough overall coating operation. Specifically, a tensioning seat 512 is also provided on the mounting base to tension the transmission belt, ensuring stable transmission between the driving pulley and the driven pulley.

[0037] Preferably, a linear bearing 513 is provided on the driven wheel, and the drive shaft 506 passes through the inner ring of the linear bearing 513. Through the limiting effect of the linear bearing 513, the resistance of the drive shaft 506 is uniform and there is no obvious jamming during the vertical sliding process. This allows the position of the drive shaft 506 to remain basically consistent during reciprocating sliding, thereby ensuring that the relationship between the pressure applied to the pressure sensor 518 and the displacement of the drive shaft 506 or the elastic element 505 remains basically consistent, so that frequent and excessive pressure (displacement) adjustments are not required.

[0038] Preferably, the mounting base is also provided with an angle sensing switch mounting plate 509, on which a sensing switch 510 is provided. By setting the position of the sensing switch 510, the drive motor 508 is driven, and the driven wheel drives the transmission shaft 506 to rotate within 120°, thereby protecting the connection between the transmission shaft 506, the coated connector 502 and related components.

[0039] Furthermore, the mounting base is also provided with a thrust ball bearing seat 517, in which a thrust ball bearing 516 is installed, and an insulating block 515 is provided between the thrust ball bearing 516 and another synchronous pulley.

[0040] In this invention, a thrust ball bearing seat 517 is provided on the motor mounting base plate 521, and a thrust ball bearing 516 is embedded therein. The axle of the driven wheel is connected to the thrust ball bearing 516, ensuring more stable axial rotation of the drive shaft 506 driven by the driven wheel, thereby assisting in controlling the radial runout of the drive shaft 506 and improving the overall rotational accuracy. Specifically, an insulating block 515 is provided between the driven wheel and the thrust ball bearing 516. The number of insulating blocks 515 can be one or more, to prevent the coating liquid dripping from the coating head 501 above from dripping onto the pressure sensor 518 and causing damage to it.

[0041] The present invention also discloses a coating device applied to the pressure-adjustable automatic coating assembly 5 described in any of the above embodiments, comprising, Workbench 1; The X-axis linear motion module 2 is set on the table surface of the worktable 1, and the Z-axis linear motion module 3 is connected to it for driving the Z-axis linear motion module 3 to move laterally. The gripper module 6 is connected to the Z-axis linear motion module 3 and is used to grip the product to be coated. The Z-axis linear motion grounding module 4 includes at least a grounding contact 41, which is positioned directly above the product to be coated.

[0042] In this invention, the worktable 1 has an overall frame structure. An X-axis linear motion module 2 is horizontally arranged on the surface of the worktable 1, and a Z-axis linear motion module 3 is mounted on the X-axis linear motion module 2. Specifically, both linear motion modules use linear guides and sliders as guiding mechanisms, ball screw pairs as transmission mechanisms, and servo motors as power mechanisms. This allows the X-axis linear motion module 2 to precisely drive the Z-axis linear motion module 3 to reciprocate horizontally. A gripper module 6 is mounted on the Z-axis linear motion module 3, enabling vertical displacement of the gripper module 6. With the cooperation of the two linear motion modules, the gripper module 6 can be precisely moved to the product to be coated.

[0043] Specifically, the gripper module 6 includes a gripper cylinder, a flexible gripper, and a flipping cylinder, which can clamp cylindrical products on their cylindrical surfaces and flip them 180°.

[0044] The contact 41 of the Z-axis linear motion grounding module 4 can make precise contact with the end face of the product to be coated, thereby ensuring that the coating operation can be carried out normally.

[0045] Furthermore, it also includes, A coating liquid storage tank 7 is set in the workbench 1, and a liquid supply pump 8 is connected to its exterior. The coating liquid storage tank 7, the liquid supply pump 8 and the coating head 501 are connected through the liquid supply pipe 9 to form a liquid supply channel. The collection box 520 is installed on the mounting base and is used to collect the coating liquid during the coating process. The collection box 520 and the coating liquid storage box 7 are connected by the return pipe 10 to form a return channel.

[0046] In this invention, a coating liquid storage tank 7 is provided inside the frame of the workbench 1 for storing coating liquid. A liquid supply pump 8 is also provided, and the coating liquid storage tank, the liquid supply pump 8 and the coating head 501 are connected by a liquid supply pipe 9, thereby forming a liquid supply channel that can deliver coating liquid to the coating head 501.

[0047] A collection box 520 is provided on the mounting base. The opening of the collection box 520 is at least larger than the coverage area of ​​the flow guide umbrella 504, so that excess dripping coating liquid can flow down the flow guide umbrella 504 into the collection box 520. The collection box 520 is connected to the coating liquid storage tank through the return pipe 10 to form a return channel, thereby forming a circulation channel with the liquid supply channel, so that the coating head 501 can be continuously supplied with liquid in a circulating manner.

[0048] Specifically, the motor mounting base plate 521 has mounting shafts 522 on its four corners, which are connected to the frame of the mounting base via shaft connecting seats 523.

[0049] A Z-axis linear motion grounding module 4 is also installed on the workbench 1. The specific module structure is the same as that of the X-axis linear motion module 2 mentioned above, and a grounding contact 41 is also installed on it. The workbench 1 has multiple workstations, namely workstation 1A - loading station, workstation 2B - coating station, workstation 3C - cleaning and drying station, and workstation 4D - unloading station. The cleaning and drying station includes at least a cleaning water pipe and an air pipe.

[0050] The specific coating process is as follows: The cylindrical part to be coated (hereinafter referred to as the product to be coated) is placed at station 1A. After the loading position switch detects the product to be coated, the X-axis linear motion module 2 drives the Z-axis linear motion module 3 to move from the initial position to the left (left and right both refer to the X-axis direction) and move directly above station 1A. The Z-axis linear motion module 3 drives the cylinder gripper mounted on it to move downward (Note: upward and downward both refer to the Z-axis direction). When it reaches the designated position, the flexible gripper clamps the product to be coated. The Z-axis linear motion module 3 moves upward to the preset safe position and stops. The X-axis linear motion module 2 drives the Z-axis linear motion module 3 to move directly above station 2B on the right. After reaching directly above station 2B, the grounding contact 41 is directly above the product to be coated. The Z-axis linear motion module 3 begins to descend. When the stationary end face of the product to be coated contacts the upper surface of the coating head 501 on the coating connector 502, downward pressure is generated. The pressure sensor 518 at the bottom of the coating connector 502 receives the pressure signal. When the preset pressure value is reached, the Z-axis linear motion module 3 stops descending. At this time, the Z-axis linear motion grounding module 4 drives the grounding contact 41 to move downward until the grounding contact 41 on the Z-axis linear motion grounding module 4 contacts the moving end face of the product. The coating liquid is delivered from the coating liquid storage tank to the coating head 501 through the supply pipe 9 via the supply pump 8. The coating head 501 can be equipped with a cloth (made of soft and absorbent material). The cloth is soaked in the coating liquid. The electrodes on the moving and stationary end faces of the product to be coated are connected. The drive motor 508 drives the synchronous pulley assembly 514 to rotate. The rotating shaft mounted on the driven pulley also rotates, driving the coating head 501 to rotate and begin coating the stationary end face of the product.

[0051] Once the stationary end face is coated, the drive motor 508 stops rotating, and the coating liquid stops being delivered to the coating head 501. The Z-axis linear motion module 3 drives the product to be coated, held on the flexible gripper, to rise to a preset safe position and then stops. The X-axis linear motion module 2 drives the Z-axis linear motion module 3 to move to the right and directly above the workstation 3C. The Z-axis linear motion module 3 then drives the product to descend to the designated position. The cleaning water pipe at the bottom of the workstation 3C cleans the stationary end face. The cleaning water output time can be preset. After cleaning, the air pipe at the bottom of the workstation 3C dries the stationary end face. The drying time can also be preset. After drying, the Z-axis linear motion module 3 lifts the product to a safe position. The flipping cylinder rotates the product to be coated 180°, so that the moving end face of the product to be coated faces down and the stationary end face that has just been coated faces up. The X-axis linear motion module 2 moves the Z-axis linear motion module 3 to the left and moves it directly above station 2B. After reaching the station 2B, the Z-axis linear motion module 3 begins to descend. When the moving end face of the product to be coated contacts the upper surface of the coating head 501, downward pressure is generated. The pressure sensor 518 at the bottom of the transmission shaft 506 receives the pressure signal. When the preset pressure value is reached, the Z-axis linear motion module 3 stops descending. At this time, the Z-axis linear motion grounding module 4 drives the grounding contact 41 to move downward until the grounding contact 41 on the Z-axis linear motion grounding module 4 contacts the stationary end face of the product. The coating liquid is delivered to the coating head 501 through the liquid supply pump 8. The cloth on the coating head 501 is soaked in the coating liquid. The electrodes on the moving and stationary end faces of the product to be coated are connected. The above coating action is repeated. After the moving end face is coated, the drive motor 508 stops rotating, and the coating liquid stops being delivered to the coating head 501. The Z-axis linear motion module 3 drives the product held on the flexible gripper to rise to a safe position and then stops. The X-axis linear motion module 2 drives the Z-axis linear motion module 3 to move to the right and directly above station 3C. The Z-axis linear motion module 3 then drives the product to be coated down to the designated position. The cleaning water pipe at the bottom of station 3C cleans the stationary end face. The cleaning water output time can be preset. After cleaning, the air pipe at the bottom of station 3C dries the cleaned area. The drying time can also be preset. After drying, the Z-axis linear motion module 3 drives the product to rise to a safe position. The flipping cylinder drives the product to be coated to rotate 180° so that the moving end face of the product to be coated faces upward. The X-axis linear motion module 2 drives the Z-axis linear motion module 3 to move to the right and directly above station 4D and then stops. The Z-axis linear motion module 3 then drives the flexible gripper and the product to be coated down to the designated position. The flexible gripper releases, completing the unloading action.

[0052] After the unloading action is completed, the flexible gripper is in the open state. At this time, the Z-axis linear motion module 3 drives the flexible gripper to rise to a safe position directly above station 3C. If there is a product to be coated at station 1A (loading position) at this time, the X-axis linear motion module 2 moves to the left to directly above station 1A, and repeats the above steps; if there is no product to be coated at station 1A at this time, the entire coating equipment stops operating and enters standby mode.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic coating assembly with adjustable pressure, characterized in that: include, The mounting base has a pressure sensor installed on its upper end; The coating connector is vertically mounted on the mounting base plate. The upper and lower ends of the coating connector are recessed inward to form a connecting groove and a plug groove, respectively. The connecting groove and the plug groove are not connected to each other. The coating head is connected in the connecting groove. The drive shaft is vertically mounted on the mounting base plate, with its upper end at least partially extending into the insertion groove of the coated connector and slidingly connected thereto. An elastic element is provided in the insertion groove, with one end abutting against the bottom of the groove and the other end abutting against the upper end of the drive shaft. The lower end of the drive shaft abuts against the pressure sensor. When the product to be coated is squeezed through the coating head, the pressure is transmitted to the pressure sensor in sequence through the elastic element and the drive shaft.

2. The pressure-adjustable automatic coating assembly according to claim 1, characterized in that: The side wall of the coating connector is provided with a vertically extending long pin hole, and the side of the drive shaft near the coating connector is provided with a pin hole. The coating connector and the drive shaft are connected by passing a fixing pin through the long pin hole and the pin hole in sequence.

3. The pressure-adjustable automatic coating assembly according to claim 2, characterized in that: A flow guide umbrella is fixedly sleeved on the side of the coated connector near the drive shaft, and its flow guide surface gradually slopes downward from the outer peripheral wall of the coated connector.

4. The pressure-adjustable automatic coating assembly according to claim 1, characterized in that: It also includes a coating drive module, mounted on a mounting base, for driving the drive shaft to rotate about its axial direction, wherein the coating drive module includes... A synchronous belt pulley assembly is mounted on a mounting base, and the drive shaft is connected to the synchronous belt pulley assembly; The drive motor has its drive end connected to the synchronous belt pulley assembly, which is used to drive the synchronous belt pulley assembly to rotate the transmission shaft around its axis.

5. The pressure-adjustable automatic coating assembly according to claim 4, characterized in that: The timing belt pulley assembly includes, Two synchronous pulleys, one of which has its axle connected to the drive end of the drive motor, and the other of which is connected to the transmission shaft; A transmission belt is wound around the periphery of two synchronous pulleys to drive the rotation of the two synchronous pulleys; Preferably, a linear bearing is coaxially mounted on another synchronous pulley, and the drive shaft passes through the linear bearing.

6. The pressure-adjustable automatic coating assembly according to claim 5, characterized in that: The mounting base is also provided with a thrust ball bearing housing, in which a thrust ball bearing is installed, and an insulating block is provided between the thrust ball bearing and another synchronous pulley.

7. A coating apparatus for use with the pressure-adjustable automatic coating assembly according to any one of claims 1-6, characterized in that: include, Workbench; The X-axis linear motion module is set on the worktable, and the Z-axis linear motion module is connected to it, which is used to drive the Z-axis linear motion module to move laterally. The gripper module, connected to the Z-axis linear motion module, is used to hold the product to be coated. The Z-axis linear motion grounding module includes at least a grounding contact, positioned directly above the product to be coated.

8. The coating equipment according to claim 7, characterized in that: It also includes, A coating liquid storage tank is set in the workbench, and a liquid supply pump is connected to its exterior. The coating liquid storage tank, the liquid supply pump and the coating head are connected through a liquid supply pipeline to form a liquid supply channel. The collection box, located on the mounting base, is used to collect the coating liquid during the coating process. The collection box and the coating liquid storage tank are connected by a return pipe to form a return channel.

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