Telescopic water-blocking rubber sleeve

Abstract

The present application relates to PCB processing equipment technical field, specifically for the brush telescopic water blocking rubber sleeve, including the lifting seat, the lifting seat is installed with the brush bearing seat, the side of the lifting seat is connected with the rear protective sleeve vertical plate, the rear protective sleeve vertical plate is connected with the waterproof assembly with good waterproof structure, the waterproof assembly is connected with the installation lower cover, the brush telescopic water blocking rubber sleeve is provided with the waterproof assembly with good waterproof structure, when the equipment is used, the waterproof assembly and the brush shaft cooperate and are fixed on the lifting seat, when the brush rotates, the waterproof assembly can be lifted synchronously with the brush, the waterproof assembly will not be intensified due to weightlessness, the wear of the rubber waterproof sleeve is avoided, frequent replacement is not needed, money and labor are saved, the rust corrosion of the parts caused by the water splashing in the machine body is prevented, the high equipment failure rate, the surface treatment quality of the circuit board is improved or the scrap situation is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to PCB board processing equipment technical field, specifically to a grinding and brushing telescopic waterproof rubber sleeve. BACKGROUND

[0002] With the progress of science and technology and the development of society, the circuit board technology has been widely used in various industries, and the requirements of circuit board manufacturing are also getting higher and higher, especially the dry film pretreatment, gold sinking pretreatment, gold plating pretreatment, electroplating pretreatment, electroplating post-treatment, drilling post-treatment and other processes all need a grinding machine. The grinding machine is driven by a motor to rotate the grinding brush to realize the surface treatment of the circuit board. As a PCB grinding, cleaning and board surface treatment equipment, it is mainly used in the process after PCB drilling to remove the burrs left after drilling and roughen the PCB surface to prepare for the next production process.

[0003] However, the grinding brush shaft sealing piece of the existing grinding machine is easy to wear due to the rotation of the grinding brush shaft, which causes the sealing hole to enlarge, resulting in leakage of the spraying water along the grinding brush shaft, causing rust and corrosion of the external components of the machine body, high equipment failure rate, reduced circuit board surface treatment quality, or scrap and other shortcomings. Moreover, the grinding brush shaft sealing piece is made of NBR material, which is a rectangular sheet body with a hole equal to the grinding brush shaft in the middle. Moreover, the grinding brush shaft needs to be lifted and lowered, which will exacerbate the wear of the sealing piece. Therefore, the service life of the existing sealing piece is only 3 months, which is inconvenient to replace and time-consuming, and has other shortcomings. In summary, the existing grinding brush shaft sealing piece is not only time-consuming and labor-intensive, but also has poor waterproofness and safety hazards, so it needs to be improved. SUMMARY

[0004] The purpose of the present application is to provide a grinding and brushing telescopic waterproof rubber sleeve to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a grinding and brushing telescopic waterproof rubber sleeve, comprising a lifting seat, a grinding brush bearing seat installed on the lifting seat, a rear protective sleeve stand connected to the side of the lifting seat, a waterproof assembly with good waterproof structure connected to the rear protective sleeve stand, and a lower cover connected to the waterproof assembly.

[0006] Preferably, the bottom of the grinding brush bearing seat is provided with a fixing hole, the grinding brush bearing seat can be fixed on the lifting seat by bolts, the grinding brush bearing seat is provided with a grinding brush shaft hole one, the rear protective sleeve stand is fixed on the end of the lifting seat by screws, and the rear protective sleeve stand is provided with a grinding brush shaft hole two.

[0007] Preferably, the waterproof assembly comprises a waterproof part, the waterproof part comprises a main plate, the main plate is provided with a brush shaft hole three, one side of the main plate is provided with a rear connecting cover, the rear connecting cover is provided with a brush shaft hole four, and a drain pipe is installed at the bottom of the rear connecting cover.

[0008] Preferably, a rear waterproof rubber block is arranged between the rear protective sleeve vertical plate and the rear connecting cover, the rear waterproof rubber block is provided with a brush shaft hole five, and the rear protective sleeve vertical plate and the rear connecting cover are fixedly connected through screws.

[0009] Preferably, a waterproof sealing ring is arranged on the other side of the main plate, an annular groove is formed in the inner side of the waterproof sealing ring, an expansion air ring is arranged in the annular groove, the surface of the expansion air ring is in W-shaped structure, a cavity is arranged in the main plate, an elastic expansion air bag is arranged in the cavity, and the elastic expansion air bag and the expansion air ring are communicated.

[0010] Preferably, a plurality of connecting rods are inserted into the main plate, one end of the connecting rod is inserted into the cavity, a pressing plate is connected to the one end of the connecting rod, and the other end of the connecting rod is connected to a push plate.

[0011] Preferably, a movable groove is arranged on the outer side of the waterproof sealing ring, a butt joint cover is arranged in the movable groove, an installation cylinder is installed on the main plate, the installation cylinder and the movable groove are communicated, a first spring is arranged in the installation cylinder, the end of the first spring is connected to a sliding plate, the sliding plate is slidably connected to an inner movable plate, and a slope rod is fixedly connected between the inner movable plate and the butt joint cover.

[0012] Preferably, an upper sealing strip is installed on the butt joint cover, the upper sealing strip is in right-angled trapezoidal structure, a movable frame is movably arranged in the movable groove, a second spring is connected between the movable frame and the side wall of the movable groove, a lower sealing strip is connected to the other side of the movable frame, the lower sealing strip is in right-angled trapezoidal structure, and the inclined surfaces of the upper sealing strip and the lower sealing strip are matched.

[0013] Compared with the prior art, the application has the following beneficial effects:

[0014] 1. The brush expansion waterproof rubber sleeve has a waterproof assembly with good waterproof structure, the waterproof assembly is matched with the brush shaft and fixed on the lifting seat during equipment use. In this way, the waterproof assembly can be lifted synchronously with the brush during the brush rotation, so that the waterproof assembly will not be abraded due to weight loss, the abrasion of the rubber waterproof sleeve is avoided, frequent replacement is not needed, money and labor are saved, water in the machine body is prevented from splashing out of the machine body to cause rust and corrosion of parts, and the high equipment failure rate, the surface treatment quality of the circuit board is improved, and the scrap situation is reduced.

[0015] 2. After the equipment is installed, the mainboard is attached to the side wall of the installation lower cover, the water blocking sealing ring can play a waterproof effect, and the push plate is in contact with the installation lower cover, so that the connecting rod moves to extrude the elastic expansion air bag, the gas in the elastic expansion air bag is compressed into the inflation air ring, the inflation air ring is inflated and protrudes, and the surface is attached to the side wall of the installation lower cover, further improving the waterproof effect;

[0016] 3. When the equipment is working, the equipment will vibrate continuously, which may cause a gap between the mainboard and the installation lower cover, and water leakage may occur. The docking cover, the first spring, the sliding plate, the inner movable plate, the inclined rod, the upper sealing strip, the movable frame, the lower sealing strip, the second spring and the like are arranged. When the mainboard is attached to the installation lower cover, the first spring pushes the sliding plate, and the end of the docking cover is tightly attached to the surface of the installation lower cover, so that the docking cover and the installation lower cover are relatively fixedly connected, and the installation cylinder and the mainboard can move relatively. When the equipment vibrates, the mainboard moves relative to the docking cover, but under the action of the elastic force of the second spring, the lower sealing strip is pushed to the right, and the inclined surface of the lower sealing strip is always attached to the inclined surface of the upper sealing strip, so that water leakage to the outside of the docking cover is prevented, and the waterproof performance is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the device of the present application;

[0018] Figure 2 It is a side view of the device of the present application;

[0019] Figure 3 It is an exploded view of the device structure of the present application;

[0020] Figure 4 It is a perspective view of the waterproof part in the present application;

[0021] Figure 5 It is another view of the waterproof part in the present application;

[0022] Figure 6 It is a sectional view of the waterproof part in the present application;

[0023] Figure 7 It is Figure 6 the enlarged view of A in the middle;

[0024] Figure 8 It is a movable frame connection structure diagram in the present application.

[0025] In the figure: lifting seat 1, brush bearing seat 2, rear protective sleeve vertical plate 3, rear water blocking rubber block 4, waterproof component 5, mounting lower cover 6, main plate 7, rear connecting cover 8, drain pipe 9, water blocking sealing ring 10, expansion gas ring 11, elastic telescopic air bag 12, connecting rod 13, push plate 14, movable groove 15, butt joint cover 16, mounting cylinder 17, first spring 18, sliding plate 19, inner movable plate 20, inclined rod 21, upper sealing strip 22, movable frame 23, lower sealing strip 24, second spring 25. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1 to 8 The present application provides a technical solution: brush telescopic water blocking rubber sleeve, comprising a lifting seat 1, the lifting seat 1 is provided with a brush bearing seat 2, the side of the lifting seat 1 is connected with a rear protective sleeve vertical plate 3, the bottom of the brush bearing seat 2 is provided with a fixing hole, the brush bearing seat 2 can be fixed on the lifting seat 1 by bolts, the brush bearing seat 2 is provided with a brush shaft hole one, the rear protective sleeve vertical plate 3 is fixed on the end of the lifting seat 1 by screws, and the rear protective sleeve vertical plate 3 is provided with a brush shaft hole two.

[0028] The rear protective sleeve vertical plate 3 is connected with a waterproof assembly having a good waterproof structure, the waterproof assembly comprises a waterproof component 5, the waterproof component 5 comprises a main plate 7, the main plate 7 is provided with a brush shaft hole three, one side surface of the main plate 7 is provided with a rear connecting cover 8, the rear connecting cover 8 is provided with a brush shaft hole four, the rear protective sleeve vertical plate 3 and the rear connecting cover 8 are provided with a rear water blocking rubber block 4, the rear water blocking rubber block 4 is provided with a brush shaft hole five, the rear protective sleeve vertical plate 3 and the rear connecting cover 8 are fixedly connected through screws, and the bottom of the rear connecting cover 8 is provided with a drain pipe 9.

[0029] The waterproof assembly is connected with a mounting lower cover 6, the mounting lower cover 6 is welded and fixed on the grinder machine body, the end surface of the mounting lower cover 6 is provided with an oblong hole, the brush shaft can move up and down in the oblong hole, and a square cylinder in communication with the oblong hole is arranged at the rear.

[0030] The other side of the main plate 7 is provided with a water blocking sealing ring 10, an annular groove is formed in the inner side of the water blocking sealing ring 10, and an expansion air ring 11 is arranged in the annular groove, the surface of the expansion air ring 11 is in W-shaped structure, the inside of the main plate 7 is provided with a cavity, an elastic expansion air bag 12 is arranged in the cavity, the elastic expansion air bag 12 is communicated with the expansion air ring 11, a plurality of connecting rods 13 are inserted into the surface of the main plate 7, one end of the connecting rod 13 is inserted into the cavity, and a pressing plate is connected to the end of the connecting rod 13, the other end of the connecting rod 13 is connected with a push plate 14, the outer side of the water blocking sealing ring 10 is provided with a movable groove 15, the inside of the movable groove 15 is provided with a docking cover 16, an installation cylinder 17 is installed on the main plate 7, the installation cylinder 17 is communicated with the movable groove 15, the inside of the installation cylinder 17 is provided with a first spring 18, the end of the first spring 18 is connected with a sliding plate 19, the sliding plate 19 is slidingly connected with an inner movable plate 20, and the inner movable plate 20 and the docking cover 16 are fixedly connected with a inclined rod 21; after the equipment is installed, the main plate 7 is attached to the side wall of the installation lower cover 6, the water blocking sealing ring 10 can play a waterproof effect, at the same time, the push plate 14 abuts against the installation lower cover 6, so that the connecting rod 13 moves to press the elastic expansion air bag 12, the gas in the elastic expansion air bag 12 is compressed to enter the expansion air ring 11, the expansion air ring 11 is expanded and protrudes, and the surface is attached to the side wall of the installation lower cover 6, thereby further improving the waterproof effect.

[0031] The docking cover 16 is installed with an upper sealing strip 22, the upper sealing strip 22 is in right-angled trapezoidal structure, the movable groove 15 is movably provided with a movable frame 23, the second spring 25 is connected between the movable frame 23 and the side wall of the movable groove 15, the other side of the movable frame 23 is connected with a lower sealing strip 24, the lower sealing strip 24 is in right-angled trapezoidal structure, and the inclined surfaces of the upper sealing strip 22 and the lower sealing strip 24 are attached; when the equipment is working, the equipment will vibrate continuously, which may cause a gap at the connection between the main plate 7 and the installation lower cover 6, and water leakage may occur, the docking cover 16, the first spring 18, the sliding plate 19, the inner movable plate 20, the inclined rod 21, the upper sealing strip 22, the movable frame 23, the lower sealing strip 24, the second spring 25 and other structures are arranged, when the main plate 7 is attached to the installation lower cover 6, the first spring 18 pushes the sliding plate 19, so that the end of the docking cover 16 is tightly attached to the surface of the installation lower cover 6, so that the docking cover 16 and the installation lower cover 6 are relatively fixedly connected, the installation cylinder 17 and the main plate 7 can move relatively, when the equipment vibrates, the main plate 7 moves relative to the docking cover 16, but under the elastic force of the second spring 25, the lower sealing strip 24 is pushed to the right, the inclined surface of the lower sealing strip 24 is always attached to the inclined surface of the upper sealing strip 22, so that water leakage to the outside of the docking cover 16 is prevented, and the waterproof performance is further improved.

[0032] Working principle: the brush telescopic waterproof rubber sleeve provided by the application is provided with a waterproof assembly with good waterproof structure, which cooperates with the brush shaft and is fixed on the lifting seat when the equipment is used. In this way, when the brush rotates, the waterproof assembly can follow the brush to rise and fall synchronously, so that the waterproof assembly will not be severely worn due to weightlessness, avoiding the wear of the rubber waterproof sleeve, saving money and labor, preventing the water in the machine body from splashing out of the machine body and causing rust and corrosion of the parts, improving the high equipment failure rate, reducing the surface treatment quality of the circuit board or scrapping the situation; after the equipment is installed, the main plate 7 is attached to the side wall of the installation lower cover 6, the waterproof sealing ring 10 can play a waterproof effect, and the push plate 14 is in contact with the installation lower cover 6, so that the connecting rod 13 moves to extrude the elastic telescopic air bag 12, the gas in the elastic telescopic air bag 12 is compressed into the expansion air ring 11, the expansion air ring 11 is expanded and protrudes and is attached to the side wall of the installation lower cover 6, further improving the waterproof effect; when the equipment is working, the equipment will vibrate continuously, which may cause a gap between the main plate 7 and the installation lower cover 6, which may cause water leakage, the structures of the docking cover 16, the first spring 18, the sliding plate 19, the inner movable plate 20, the inclined rod 21, the upper sealing strip 22, the movable frame 23, the lower sealing strip 24, the second spring 25 and the like are provided, when the main plate 7 is attached to the installation lower cover 6, the first spring 18 pushes the sliding plate 19, so that the end of the docking cover 16 is attached to the surface of the installation lower cover 6, so that the docking cover 16 and the installation lower cover 6 can be relatively fixedly connected, the installation cylinder 17 and the main plate 7 can move relatively, when the equipment vibrates, the main plate 7 moves relative to the docking cover 16, but under the elastic force of the second spring 25, the lower sealing strip 24 is pushed to the right, the inclined surface of the lower sealing strip 24 is always attached to the inclined surface of the upper sealing strip 22, so that water leakage to the outside of the docking cover 16 is prevented, further improving the waterproof performance.

[0033] Although embodiments of the application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A telescopic water-proof rubber sleeve with brush, comprising a lifting seat (1), characterized in that: The lifting seat (1) is provided with a brush bearing seat (2), the side of the lifting seat (1) is connected with a rear protective sleeve vertical plate (3), the rear protective sleeve vertical plate (3) is connected with a waterproof assembly with good waterproof structure, the waterproof assembly is connected with a mounting lower cover (6), the waterproof assembly comprises a waterproof part (5), the waterproof part (5) comprises a main plate (7), the rear connecting cover (8) is arranged on one side of the main plate (7), the rear protective sleeve vertical plate (3) and the rear connecting cover (8) are provided with a rear water blocking rubber block (4). The other side of the main plate (7) is provided with a water blocking sealing ring (10), the outer side of the water blocking sealing ring (10) is provided with a movable groove (15), the inside of the movable groove (15) is provided with a butt joint cover (16), the main plate (7) is provided with a mounting cylinder (17), the mounting cylinder (17) is connected with the movable groove (15), the inside of the mounting cylinder (17) is provided with a first spring (18), the end of the first spring (18) is connected with a sliding plate (19), the sliding plate (19) is slidably connected with an inner movable plate (20), the inner movable plate (20) and the butt joint cover (16) are fixedly connected with an inclined rod (21); the butt joint cover (16) is provided with an upper sealing strip (22), the upper sealing strip (22) is a right-angled trapezoidal structure, the inside of the movable groove (15) is movably provided with a movable frame (23), the second spring (25) is connected between the movable frame (23) and the side wall of the movable groove (15), the other side of the movable frame (23) is connected with a lower sealing strip (24), the lower sealing strip (24) is a right-angled trapezoidal structure, and the inclined surfaces of the upper sealing strip (22) and the lower sealing strip (24) are fitted.

2. The abrasive and telescopic water-stopping sleeve according to claim 1, characterized in that: The bottom of the brush bearing seat (2) is provided with a fixing hole, the brush bearing seat (2) can be fixed on the lifting seat (1) through bolts, the brush bearing seat (2) is provided with a brush shaft hole one, the rear protective sleeve vertical plate (3) is fixed on the end of the lifting seat (1) through screws, and the rear protective sleeve vertical plate (3) is provided with a brush shaft hole two.

3. The abrasive and telescopic water-stopping sleeve according to claim 1, characterized in that: The main plate (7) is provided with a brush shaft hole three, the rear connecting cover (8) is provided with a brush shaft hole four, and the bottom of the rear connecting cover (8) is provided with a drain pipe (9).

4. The abrasive and telescopic water-stopping sleeve according to claim 1, characterized in that: The rear protective sleeve vertical plate (3) and the rear connecting cover (8) are fixedly connected through screws.

5. The abrasive and telescopic water-stopping sleeve according to claim 1, characterized in that: The inside of the water blocking sealing ring (10) is provided with an annular groove, the annular groove is provided with an expansion air ring (11), the surface of the expansion air ring (11) is a W-shaped structure, the inside of the main plate (7) is provided with a cavity, and the cavity is provided with an elastic expansion air bag (12), the elastic expansion air bag (12) and the expansion air ring (11) are connected in communication.

6. The abrasive and telescopic water-stopping sleeve according to claim 1, characterized in that: The surface of the main plate (7) is inserted with a plurality of connecting rods (13), one end of the connecting rod (13) is inserted into the cavity, a pressing plate is connected to the end of the connecting rod (13), and the other end of the connecting rod (13) is connected with a push plate (14).

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