A whole board three-proofing paint coating machine with safety protection device

Abstract

The utility model discloses a whole board three -proof paint coating machine with safety device, relate to circuit board processing technical field. The utility model discloses a coating mechanism, the upper wall of box is fixed with the placement board, the upper wall of placement board is fixed with the protection cover, the lower wall of connecting box is equidistant from front to back and is fixed with a plurality of sprays, and the upper side of moving plate is detachably fixed with the scraping strip, the purification mechanism is located a plurality of adhering plates in the inside of box, and the lower wall of corresponding box is fixed with the fan at the position where the perforation is, and the lower wall of corresponding box inside is equipped with the activated carbon filter plate at the position where the perforation is. The utility model discloses through motor one drive scraping strip and move along the placement board to the three -proof paint of adhering to the surface of placement board and carry out scraping, has solved the three -proof paint of adhering to the workbench of prior art and needs manual scraping, has increased the labor intensity of worker, and the existing technology opens the protective plate, and the mist three -proof paint scatters to the external environment, and the problem of reducing the protection effect to the worker.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board processing technology, and in particular relates to a whole-board conformal coating machine with a safety protection device. Background Technology

[0002] Conformal coating is mainly used to protect electronic components and electrical equipment from external environmental factors. Applying conformal coating can extend the service life of equipment and prevent damage caused by moisture, dust, chemicals, etc. At present, in order to improve coating efficiency and quality, coating machines are mostly used for coating. During coating, in order to prevent the mist-like conformal coating from drifting into the external environment and being inhaled by workers, the coating mechanism is equipped with a safety protection device to isolate the coating environment from the external environment.

[0003] A search revealed that authorization announcement number CN215695000U, with an authorization announcement date of February 1, 2022, discloses a whole-board conformal coating machine with a safety protection device. The machine includes a workbench, a control box fixedly mounted on the lower side wall of the workbench, a protective cover fixedly mounted on the upper side wall of the workbench, a moving device fixedly mounted at the upper end inside the protective cover, and a spraying assembly fixedly mounted at the lower end of the moving device. Symmetrical first lead screws are longitudinally rotatable at both ends inside the control box, and first bevel gears are sleeved at the lower ends of both first lead screws. A dual-axis motor is fixedly mounted at the lower end inside the control box, and rotating rods are fixedly mounted at both ends of the dual-axis motor. When the spraying assembly sprays paint onto the whole board, it can effectively provide safety protection, preventing the sprayed paint from drifting into the air and coming into contact with the operator's skin, thus preventing skin injury.

[0004] In existing technologies, after prolonged coating of circuit boards, any uncoated conformal coating sprayed from the nozzle adheres to the workbench. This requires manual scraping, increasing the workload for workers. Furthermore, after coating, a mist of conformal coating remains in the space surrounding the circuit board. When the protective cover is opened, this mist disperses into the environment, reducing worker protection. To address these issues, we provide a whole-board conformal coating machine with a safety protection device. Utility Model Content

[0005] The purpose of this utility model is to provide a whole-plate conformal coating machine with a safety protection device. The machine uses a motor to drive a scraper to move along the placement plate to scrape off the conformal coating adhering to the surface of the placement plate. This solves the problem that in the prior art, the conformal coating adhering to the workbench needs to be scraped off manually, which increases the labor intensity of workers. In addition, the prior art has the problem that after the protective plate is opened, the misty conformal coating will drift into the external environment, which reduces the protective effect on workers.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a three-proof paint coating machine for an entire panel with a safety protection device. It includes a coating mechanism, which comprises a housing. A placement plate is fixed to the upper wall of the housing, and a protective cover is fixed to the upper wall of the placement plate. An L-shaped plate is located on the front side of the protective cover, and a material box is fixed to the rear side of the upper wall of the protective cover. A conveying pump is fixed to the upper wall of the material box. An electric push rod is located inside the protective cover, and a connecting box is fixed to the lower end of the electric push rod. Multiple nozzles are equidistantly fixed to the lower wall of the connecting box from front to back. A motor is fixed to the upper side of the front wall of the housing, and a screw is fixed to the power output shaft of the motor. A movable plate that is slidably connected to the placement plate is threaded onto the external of the screw. A scraper is detachably fixed to the upper side of the movable plate. A purification mechanism includes multiple adhesion plates located inside the housing. A perforation is opened in the lower wall of the housing, and a fan is fixed to the lower wall of the housing at the location of the perforation. An activated carbon filter plate is located on the lower wall of the housing at the location of the perforation.

[0007] The present invention is further configured such that both the inlet and outlet ends of the conveying pump are fixedly provided with conveying pipes, the other end of the conveying pipe at the inlet end of the conveying pump is fixedly provided to the lower end of the side wall of the material box, and the other end of the conveying pipe at the outlet end of the conveying pump is fixedly provided to the connecting box.

[0008] The present invention is further provided with a feed pipe fixedly installed on the upper wall of the material box, a pipe cap being threadedly connected to the outside of the feed pipe, and a transparent viewing window being fixedly installed on the front wall of the material box.

[0009] The present invention is further configured such that an electric push rod is provided above the L-shaped plate, and connecting parts are fixed at both ends of the electric push rod. The electric push rod is rotatably connected to the L-shaped plate and the protective cover respectively through the connecting parts. The L-shaped plate is rotatably connected to the protective cover through a hinge. An air inlet groove is provided on the upper wall of the protective cover.

[0010] The present invention is further configured such that a second motor is fixedly mounted on the upper side of the right wall of the protective cover, a second screw is fixedly mounted on the power output shaft of the second motor, a movable block is threadedly connected to the external of the second screw, the movable block is slidably connected to the protective cover, and the second electric push rod is fixedly connected to the movable block.

[0011] The present invention is further configured such that rectangular grooves are provided on the placement plates corresponding to both ends of the movable plate, and air holes are uniformly provided on the movable plate.

[0012] The present invention is further configured such that the front and rear ends of the lower wall of the adhesive plate are provided with protruding strips fixed to the box body, one side of the adhesive plate is provided with a guide groove to make the airflow move in a serpentine manner, the front and rear sides of the activated carbon filter plate are symmetrically provided with L-shaped strips fixed to the box body, the left wall of the box body is rotatably connected to the box door by a hinge, and the front end of the left wall of the box door is fixed with a handle lock.

[0013] The present invention is further configured such that screw sleeves are fixed at the four corner positions of the lower wall of the box, and screw rods are threadedly connected to the lower ends of the screw sleeves, and a base plate is fixed at the lower end of the screw rods.

[0014] This utility model has the following beneficial effects: 1. This utility model is equipped with a motor, a screw, a moving plate, and a scraper. The motor drives the screw to rotate, which in turn moves the moving plate, which in turn moves the scraper along the placement plate. As the scraper moves, the conformal coating adhering to the surface of the placement plate can be scraped off without manual scraping, making the operation simpler and reducing the labor intensity of workers.

[0015] 2. This utility model, by setting up a fan, activated carbon filter plate, and adhesion plate, creates a negative pressure state inside the housing and protective cover when the fan is working. At this time, the airflow carries the mist-like conformal coating that has drifted into the protective cover into the housing. Under the action of the adhesion plate, it moves in a serpentine motion. When the airflow containing the mist-like conformal coating acts on the adhesion plate, the adhesion plate can adhere to the mist-like conformal coating in the airflow, reducing the content of the mist-like conformal coating in the airflow. Finally, the airflow passes through the activated carbon filter plate, which further filters the mist-like conformal coating in the airflow, preventing the mist-like conformal coating from drifting into the external environment and improving the protective effect for workers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is an overall structural diagram of a panel conformal coating machine with safety protection devices.

[0018] Figure 2 This is a structural diagram of the coating mechanism.

[0019] Figure 3 This is a diagram of the internal structure of the coating mechanism.

[0020] Figure 4 for Figure 3 An exploded view of part of the structure.

[0021] Figure 5 This is a diagram showing the connection structure between the enclosure and the purification mechanism.

[0022] Figure 6 This is a structural diagram of the inside of the box.

[0023] Figure 7 This is a diagram showing the positional structure between adjacent adhesive plates.

[0024] The attached diagram lists the components represented by each number as follows: 1-Coating mechanism, 101-Conveyor pump, 101a-Conveyor pipe, 102-Pipe cover, 103-Material bin, 103a-Transparent window, 103b-Feed pipe, 104-Protective cover, 104a-Air inlet slot, 105-Electric push rod one, 105a-Connector, 106-L-shaped plate, 107-Motor one, 107a-Screw one, 108-Box body, 108a-Perforation, 109-Placing plate, 109a-Rectangular groove, 109b-Air hole, 11 0-Motor II, 110a-Screw II, 111-Electric Push Rod II, 111a-Moving Block, 111b-Connecting Box, 112-Nozzle, 113-Scraper Strip, 114-Moving Plate, 2-Purification Mechanism, 201-Raised Strip, 202-Adhesion Plate, 202a-Guide Channel, 203-Box Door, 203a-Handle Lock, 204-Fan, 205-Screw III, 205a-Base Plate, 206-Screw Sleeve, 207-Activated Carbon Filter Plate, 208-L-Shaped Strip. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example 1 Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This is the first embodiment of the present invention, which provides a whole-board conformal coating machine with a safety protection device. The machine includes a coating mechanism 1, which comprises a housing 108 with an open upper side. A placement plate 109 is fixed to the upper wall of the housing 108 for placing the circuit board to be coated. A protective cover 104 is fixed to the upper wall of the placement plate 109. An L-shaped plate 106 is provided on the front side of the protective cover 104. The cooperation between the L-shaped plate 106 and the protective cover 104 provides a safety protection effect for the worker. A material hopper 103 is fixedly installed on the rear side of the upper wall of the protective cover 104. The material hopper 103 contains conformal coating. A delivery pump 101 is fixedly installed on the upper wall of the material hopper 103 for conveying the conformal coating. An electric push rod 111 is installed inside the protective cover 104. The operation of the electric push rod 111 can drive the spray head 112 to move, thereby adjusting the coating height. A connecting box 111b is fixedly installed at the lower end of the electric push rod 111. The interior of the connecting box 111b is hollow, and the interior of the spray head 112 communicates with the interior of the connecting box 111b. Multiple nozzles 112 are equidistantly fixed to the lower wall of the connecting box 111b from front to back for spraying the conformal coating in a mist. A motor 107 is fixed to the upper side of the front wall of the housing 108. A screw 107a is fixed to the power output shaft of the motor 107. The rear end of the screw 107a is rotatably connected to the housing 108 via a bearing. Rubber telescopic sleeves are provided at the front and rear of the moving plate 114, which are fitted over the screw 107a to prevent the conformal coating from contaminating the screw 107a. The two ends of the rubber telescopic sleeves are respectively connected to the opposite side. The corresponding housing 108 and movable plate 114 are fixed. The external thread of screw 107a is connected to movable plate 114 which is slidably connected to placement plate 109. Scraper 113 is detachably fixed on the upper side of movable plate 114. The front end of the lower wall of scraper 113 contacts the upper wall of placement plate 109, so that when motor 107 works, it drives screw 107a to rotate, which drives movable plate 114 to move forward, thereby driving scraper 113 to move forward along placement plate 109 to scrape off the conformal coating adhering to the upper surface of placement plate 109. Specifically, both the inlet and outlet ends of the delivery pump 101 are fixed with delivery pipes 101a. The other end of the delivery pipe 101a at the inlet end of the delivery pump 101 is fixed to the lower end of the side wall of the material box 103, and the other end of the delivery pipe 101a at the outlet end of the delivery pump 101 is fixed to the connecting box 111b. With the above arrangement, when the delivery pump 101 is working, the conformal coating inside the material box 103 is delivered to the inside of the connecting box 111b with the cooperation of the delivery pipe 101a. The upper wall of the material tank 103 is fixedly provided with a feed pipe 103b, the inside of the feed pipe 103b is connected to the inside of the material tank 103, and the outside of the feed pipe 103b is threadedly connected with a pipe cap 102. By rotating the pipe cap 102, the pipe cap 102 is disengaged from the feed pipe 103b, and the conformal coating can be replenished into the material tank 103 through the feed pipe 103b. In order to balance the pressure of the material tank 103 and the outside, a small hole is also provided on the pipe cap 102 or the upper wall of the material tank 103 to balance the internal and external pressure of the material tank 103. The front wall of the material tank 103 is fixedly provided with a transparent window 103a to facilitate viewing the liquid level of the conformal coating inside the material tank 103. An electric push rod 105 is provided above the L-shaped plate 106. Both ends of the electric push rod 105 are fixed with connectors 105a. The electric push rod 105 is rotatably connected to the L-shaped plate 106 and the protective cover 104 through the connectors 105a. The L-shaped plate 106 is rotatably connected to the protective cover 104 through a hinge. By operating the electric push rod 105, the L-shaped plate 106 can be rotated to open or close the protective cover 104. An air inlet groove 104a is provided on the upper wall of the protective cover 104. When the fan 204 is working, outside air will enter the protective cover 104 through the air inlet groove 104a. A motor 110 is fixedly mounted on the upper right side of the protective cover 104. A screw 110a is fixedly mounted on the power output shaft of the motor 110. The left end of the screw 110a is rotatably connected to the protective cover 104 via a bearing. Rubber telescopic sleeves are provided on the left and right sides of the moving block 111a, fitted over the screw 110a, to prevent the conformal coating from contaminating the screw 110a. The two ends of the rubber telescopic sleeves are respectively fixed to the corresponding protective cover 104 and moving block 111a. The external threaded connection of 10a is a movable block 111a, which is slidably connected to the protective cover 104 to prevent the movable block 111a from rotating. The electric push rod 111 is fixedly connected to the movable block 111a. With the above configuration, the motor 110 drives the screw 110a to rotate, thereby moving the movable block 111a and driving the electric push rod 111 to move, which in turn drives the connecting box 111b and the spray head 112 to move, thereby adjusting the spraying position. Rectangular grooves 109a are provided on the placement plates 109 at both ends of the movable plate 114 to provide space for the movement of the movable plate 114. Air holes 109b are evenly provided on the movable plate 114 so that the airflow generated by the fan 204 when it is working carries the mist-like three-proof paint that drifts into the protective cover 104 and enters the interior of the box 108. The operation process of this embodiment is as follows: When in use, the electric push rod 105 is retracted by operating the controller, and the L-shaped plate 106 is rotated backward to expose the placement plate 109. At this time, the circuit board is placed on the placement plate 109, and the electric push rod 105 is extended by operating the controller to drive the L-shaped plate 106 to rotate in the opposite direction to close the protective cover 104. At this time, the controller operates the electric push rod 111 to work, so that the nozzle 112 is at a suitable height. Then, the controller controls the delivery pump 101 and the motor 110 to work. The delivery pump 101 works to deliver the conformal coating inside the material box 103 to the connecting box 111b, and then sprays it out in a mist through the nozzle 112. At the same time, the motor 110 works to drive the screw 110a to rotate, so that the moving block 111a moves and drives the electric push rod 111 to move. Finally, the connecting box 111b and the nozzle 112 move to achieve the application of conformal coating to the circuit board.

[0027] Example 2 Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: the purification mechanism 2 includes multiple adhesion plates 202 disposed inside the housing 108 for adhering part of the conformal coating in the airflow. The lower wall inside the housing 108 has a perforation 108a. A fan 204 is fixedly disposed at the location of the perforation 108a corresponding to the lower wall of the housing 108. An activated carbon filter plate 207 is disposed at the location of the perforation 108a corresponding to the lower wall inside the housing 108. With the above arrangement, when the fan 204 works, the conformal coating moves in a serpentine manner with the airflow. During this process, the conformal coating will adhere to the adhesion plates 202 when it encounters them, which can reduce the content of conformal coating in the airflow. Finally, under the action of the activated carbon filter plate 207, the conformal coating is further adsorbed and filtered. Specifically, the front and rear ends of the lower wall of the adhesive plate 202 are provided with protruding strips 201 that are fixed to the box body 108, providing a platform for the adhesive plate 202. A guide groove 202a is opened on one side of the adhesive plate 202 to make the airflow move in a serpentine manner. The front and rear sides of the activated carbon filter plate 207 are symmetrically provided with L-shaped strips 208 that are fixed to the box body 108 to clamp and fix the activated carbon filter plate 207. The left wall of the box body 108 is connected to the box door 203 by a hinge. A maintenance groove is opened on the left wall of the box body 108 at the location of the box door 203. A handle lock 203a is fixed at the front end of the left wall of the box door 203. The box door 203 is opened by operating the handle lock 203a to expose the maintenance groove. The adhesive plate 202 is taken out and cleaned, and then the activated carbon filter plate 207 is taken out and replaced. Screw sleeves 206 are fixed at the four corners of the lower wall of the housing 108. The lower end of the screw sleeves 206 is threadedly connected to screw rods 205. The lower end of screw rods 205 is fixed with a base plate 205a. With the above arrangement, by operating the base plate 205a to rotate, the corresponding screw rods 205 will rotate, so that all four base plates 205a are in contact with the ground, thus making the whole plate conformal coating machine with safety protection device stably placed on the ground. Furthermore, the upper surface of the adhesive plate 202 may be covered with a replaceable adhesive layer to facilitate cleaning of the adhesive plate 202; The operation process of this embodiment is as follows: In the coating state, the controller controls the fan 204 to work. At this time, the outside air enters the interior of the protective cover 104 through the air inlet slot 104a, carries the mist-like conformal coating through the air hole 109b into the box 108, and then moves in a serpentine motion under the action of the adhesion plate 202. During the movement, some of the mist-like conformal coating comes into contact with the adhesion plate 202 and is adhered to the surface of the adhesion plate 202. Then, the airflow carries the mist-like conformal coating through the activated carbon filter plate 207 for further filtration. Finally, the filtered airflow passes through the fan 204 and is discharged to the outside.

[0028] It should be noted that all electrical components in this conformal coating machine with safety protection devices are electrically connected to the microcontroller in the controller via wires, and the microcontroller in the controller is electrically connected to an external power source via wires. Furthermore, both the electrical components and the controller in this conformal coating machine with safety protection devices can be purchased from the market or custom-made; no specific model is specified here. Additionally, the connector 105a in this conformal coating machine with safety protection devices is used in conjunction with the electric push rod 105 and is a dedicated connector 105a for the electric push rod, which is available with the purchase of the electric push rod; further details are omitted here.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A whole-panel conformal coating machine with a safety protection device, comprising a coating mechanism (1), characterized in that: The coating mechanism (1) includes a housing (108), a placement plate (109) is fixedly provided on the upper wall of the housing (108), a protective cover (104) is fixedly provided on the upper wall of the placement plate (109), an L-shaped plate (106) is provided on the front side of the protective cover (104), a material box (103) is fixedly provided on the rear side of the upper wall of the protective cover (104), a conveying pump (101) is fixedly provided on the upper wall of the material box (103), and an electric push rod (111) is provided inside the protective cover (104). A connecting box (111b) is fixedly provided at the lower end of the 11). Multiple nozzles (112) are fixedly provided at equal intervals from front to back on the lower wall of the connecting box (111b). A motor (107) is fixedly provided on the upper side of the front wall of the box (108). A screw (107a) is fixedly provided on the power output shaft of the motor (107). A movable plate (114) is slidably connected to the external thread of the screw (107a) and is connected to the placement plate (109). A scraper (113) is detachably fixed on the upper side of the movable plate (114). The purification mechanism (2) includes multiple adhesive plates (202) disposed inside the box (108). A perforation (108a) is provided on the lower wall inside the box (108). A fan (204) is fixedly disposed on the lower wall of the box (108) at the location of the perforation (108a). An activated carbon filter plate (207) is disposed on the lower wall inside the box (108) at the location of the perforation (108a).

2. The whole-panel conformal coating machine with a safety protection device according to claim 1, characterized in that: The inlet and outlet ends of the pump (101) are both fixed with a conveying pipe (101a). The other end of the conveying pipe (101a) at the inlet end of the pump (101) is fixed to the lower end of the side wall of the hopper (103), and the other end of the conveying pipe (101a) at the outlet end of the pump (101) is fixed to the connecting box (111b).

3. A whole-panel conformal coating machine with a safety protection device according to claim 2, characterized in that: The upper wall of the hopper (103) is fixedly provided with a feed pipe (103b), and the feed pipe (103b) is externally threaded with a pipe cap (102). The front wall of the hopper (103) is fixedly provided with a transparent window (103a).

4. A whole-panel conformal coating machine with a safety protection device according to claim 1, characterized in that: An electric push rod (105) is provided above the L-shaped plate (106). Both ends of the electric push rod (105) are fixed with connectors (105a). The electric push rod (105) is rotatably connected to the L-shaped plate (106) and the protective cover (104) respectively through the connectors (105a). The L-shaped plate (106) is rotatably connected to the protective cover (104) through a hinge. An air inlet groove (104a) is provided on the upper wall of the protective cover (104).

5. A whole-panel conformal coating machine with a safety protection device according to claim 4, characterized in that: A second motor (110) is fixedly mounted on the upper side of the right wall of the protective cover (104). A second screw (110a) is fixedly mounted on the power output shaft of the second motor (110). A moving block (111a) is connected to the external thread of the second screw (110a). The moving block (111a) is slidably connected to the protective cover (104). The second electric push rod (111) is fixedly connected to the moving block (111a).

6. A whole-panel conformal coating machine with a safety protection device according to claim 1, characterized in that: The movable plate (114) has rectangular grooves (109a) on the placement plates (109) at both ends, and air holes (109b) are evenly distributed on the movable plate (114).

7. A whole-panel conformal coating machine with a safety protection device according to claim 1, characterized in that: The front and rear ends of the lower wall of the adhesive plate (202) are provided with protruding strips (201) that are fixed to the box body (108). A guide groove (202a) is opened on one side of the adhesive plate (202) to make the airflow move in a serpentine manner. The front and rear sides of the activated carbon filter plate (207) are symmetrically provided with L-shaped strips (208) that are fixed to the box body (108). The left wall of the box body (108) is connected to the box door (203) by a hinge. The front end of the left wall of the box door (203) is fixed with a handle lock (203a).

8. A whole-panel conformal coating machine with a safety protection device according to claim 7, characterized in that: Screw sleeves (206) are fixed at the four corners of the lower wall of the box (108). The lower end of the screw sleeve (206) is threadedly connected to a screw rod (205), and the lower end of the screw rod (205) is fixed with a base plate (205a).

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