Circuit board tin spraying device

Abstract

The invention relates to the field of circuit boards, in particular to a circuit board tin spraying device which comprises a tin liquor pool, a top plate is detachably arranged at the top end of the tin liquor pool, four sets of lifting rods are slidably connected to the inner side of the top plate, an ejection plate is fixedly installed at the bottoms of the four sets of lifting rods, and two rows of fixed rods are detachably installed at the top end of the ejection plate. Four sets of lifting rods are fixedly connected with two sets of lifting frames correspondingly, two sets of electric push rods are fixedly installed on the outer side of the tin liquid pool, and the telescopic ends of the two sets of electric push rods are fixedly connected with the two sets of lifting frames correspondingly. The lifting rod moves up and down to drive the ejector plate to move up and down, the ejector plate moves up and down to drive the two rows of fixed rods 5 to move up and down, so that the circuit board can enter and exit from the tin liquid pool, and the two sets of electric push rods are installed on the outer wall of the tin liquid pool and cannot be affected by the high temperature of tin liquid.

Description

Technical Field

[0001] The invention relates to the field of circuit boards, in particular to a circuit board tin spraying device. Background Art

[0002] Nowadays, circuit boards need a tin spraying device to spray tin on their surfaces to achieve corrosion resistance. Existing circuit board tin spraying devices, such as a circuit board rapid tin spraying device with publication number CN219499656U, include a tin spraying table, longitudinal moving components installed on the left and right sides of the tin spraying table, a lifting cylinder connected to the upper side of the longitudinal moving component, a support frame installed on the upper side of the lifting cylinder, and a clamping component installed on the inner side of the support frame; wherein, an immersion pool is provided on the upper side of the tin spraying table, a circuit board ejection component is provided on the inner side of the immersion pool, a feeding port is installed on the upper side of the tin spraying table, a control panel is provided on the front side of the tin spraying table, and a baffle is fixedly installed on the rear side of the tin spraying table.

[0003] The above device sets the electric push rod in the circuit board ejection assembly inside the immersion tank, and the temperature of the tin liquid is relatively high. The electric push rod cannot continue to work in such a high temperature environment and is easily damaged; in addition, the circuit board is relatively thin. After the circuit board enters the immersion tank, the circuit board will not fall vertically on the top of the ejection plate. The circuit board will lie flat on the ejection plate, resulting in the ejection plate being unable to ensure that the circuit board can be ejected from the immersion tank when ejecting the circuit board. For this reason, we propose a circuit board tin spraying device. Summary of the invention

[0004] The object of the present invention is to provide a circuit board tin spraying device, comprising a tin liquid pool, a top plate is detachably provided on the top of the tin liquid pool, four groups of lifting rods are slidably connected to the inner side of the top plate, an ejection plate is fixedly installed at the bottom of the four groups of lifting rods, two rows of fixed rods are detachably installed on the top of the ejection plate, the four groups of lifting rods are respectively fixedly connected to two groups of lifting frames, two groups of electric push rods are fixedly installed on the outside of the tin liquid pool, and the telescopic ends of the two groups of electric push rods are respectively fixedly connected to the two groups of lifting frames.

[0005] Preferably, the tin liquid pool is detachably mounted on the top of the base, and a feeding port and a circuit board inlet and outlet are provided on the top plate.

[0006] Preferably, two sets of slide grooves are provided on the base, and sliders are slidably connected in the slide grooves. A screw is threadedly connected to the inner side of the slider, and the screw is rotatably connected to a limit plate through a bearing, and the limit plate is fixedly installed in the slide groove.

[0007] Preferably: gears are fixedly sleeved on the outer sides of the two groups of screw rods, the two groups of gears are meshed with chains, one end of one group of screw rods is fixedly connected to a servo motor, the servo motor is mounted on a motor frame and the motor frame is fixedly connected to the outer wall of the base.

[0008] Preferably: a baffle is installed on the top of the base.

[0009] Preferably, a bracket is fixedly installed between the two groups of sliding blocks, a hydraulic cylinder is installed on the bracket, and the telescopic end of the hydraulic cylinder is fixedly connected to a fixed frame in the clamping assembly.

[0010] Preferably: the clamping assembly includes a fixed frame, which is rotatably connected to a double-wire screw via a bearing, and the two groups of threads on the double-wire screw are respectively threadedly connected to two groups of sliders 2, the inner sides of the two groups of sliders 2 are slidably connected to guide rods, both ends of the guide rods are fixedly connected to the fixed frame, one end of the double-wire screw is fixedly connected to the motor and the motor is fixedly installed on the outer wall of the fixed frame, the bottoms of the two groups of sliders 2 are fixedly connected to splints, the adjacent sides of the two groups of splints are fixedly connected to soft pads, and the adjacent sides of the two groups of soft pads are fixedly connected to anti-slip strips.

[0011] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is in use, the circuit board is located between the two rows of fixed rods, so that the circuit board is relatively in a vertical state and will not lie flat on the ejector plate. When the electric push rod drives the circuit board to move upward, the circuit board can smoothly pass through the circuit board inlet and outlet, and the circuit board is ejected out of the tin liquid pool. The two groups of electric push rods are started to drive the lifting frame to move up and down, and the up and down movement of the lifting frame will drive the lifting rod to move up and down, and the up and down movement of the lifting rod will drive the ejector plate to move up and down, and the up and down movement of the ejector plate drives the two rows of fixed rods 5 to move up and down, so that the circuit board can enter and exit the tin liquid pool, and the two groups of electric push rods are installed on the outer wall of the tin liquid pool, so that the electric push rods will not be affected by the high temperature of the tin liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 A schematic diagram of the clamping assembly structure.

[0013] In the figure: 1. Tin liquid pool; 2. Top plate; 3. Lifting rod; 4. Ejector plate; 5. Fixed rod; 6. Lifting frame; 7. Electric push rod; 8. Lifting frame; 9. Feeding port; 10. Circuit board inlet and outlet; 11. Slide; 12. Sliding block; 13. Screw; 14. Limiting plate; 15. Gear; 16. Chain; 17. Servo motor; 18. Baffle; 19. Bracket; 20. Hydraulic cylinder; 21. Clamping assembly; 2101. Fixed frame; 2102. Double-wire screw; 2103. Sliding block 2; 2104. Guide rod; 2105. Motor; 2106. Clamping plate; 2107. Cushion; 2108. Anti-slip strip. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1 - Figure 3 The figure shows a circuit board tin spraying device of the present invention, comprising a tin liquid pool 1, a top plate 2 is detachably provided on the top of the tin liquid pool 1, four groups of lifting rods 3 are slidably connected to the inner side of the top plate 2, an ejection plate 4 is fixedly installed at the bottom of the four groups of lifting rods 3, two rows of fixed rods 5 are detachably installed on the top of the ejection plate 4, the four groups of lifting rods 3 are respectively fixedly connected to two groups of lifting frames 6, two groups of electric push rods 7 are fixedly installed on the outer side of the tin liquid pool 1, and the telescopic ends of the two groups of electric push rods 7 are respectively fixedly connected to the two groups of lifting frames 6.

[0016] The tin liquid pool 1 is detachably mounted on the top of the base 8, and a feeding port 9 and a circuit board inlet and outlet 10 are provided on the top plate 2. When in use, tin liquid is added into the tin liquid pool 1 through the feeding port 9, and the circuit board can enter and exit the tin liquid pool 1 through the circuit board inlet and outlet 10.

[0017] Two sets of slide grooves 11 are provided on the base 8, and sliders 12 are slidably connected in the slide grooves 11. A screw 13 is threadedly connected to the inner side of the slider 12. The screw 13 is rotatably connected to a limit plate 14 through a bearing. The limit plate 14 is fixedly installed in the slide groove 11, and the slider 12 can move in the slide groove 11.

[0018] Gears 15 are fixedly sleeved on the outside of the two groups of screw rods 13, and the two groups of gears 15 are meshed with chains 16. One end of one group of screw rods 13 is fixedly connected to a servo motor 17, and the servo motor 17 is installed on a motor frame and the motor frame is fixedly connected to the outer wall of the base 8. When the servo motor 17 is started, the two groups of screw rods 13 rotate at the same time under the drive of the gears 15 and the chain 16, and the rotation of the screw rods 13 drives the two groups of sliders 12 to move.

[0019] A baffle 18 is installed on the top of the base 8. When in use, the circuit board that has not been subjected to tin spraying treatment is first placed between the baffle 18 and the base 8 to keep the circuit board in a vertical state.

[0020] A bracket 19 is fixedly installed between the two groups of sliders 12, and a hydraulic cylinder 20 is installed on the bracket 19. The telescopic end of the hydraulic cylinder 20 is fixedly connected to the fixed frame 2101 in the clamping assembly 21. The movement of the two groups of sliders 12 will drive the bracket 19 to move, and the movement of the bracket 19 will drive the clamping assembly 21 to move. Starting the hydraulic cylinder 20 can drive the clamping assembly 21 to move up and down.

[0021] The clamping assembly 21 includes a fixed frame 2101, and a double-thread screw 2102 is rotatably connected to the fixed frame 2101 through a bearing. The two sets of threads on the double-thread screw 2102 are respectively threadedly connected to two sets of sliders 2103. The inner sides of the two sets of sliders 2103 are slidably connected with guide rods 2104. Both ends of the guide rods 2104 are fixedly connected to the fixed frame 2101. One end of the double-thread screw 2102 is fixedly connected to the motor 2105 and the motor 2105 is fixedly installed on the outer wall of the fixed frame 2101. The bottoms of the two sets of sliders 2103 are fixedly connected to the clamping plate 2 106, the adjacent sides of the two groups of clamping plates 2106 are fixedly connected with soft pads 2107, and the adjacent sides of the two groups of soft pads 2107 are fixedly connected with anti-slip strips 2108. When in use, starting the motor 2105 can drive the double-wire screw 2102 to rotate, and the rotation of the double-wire screw 2102 will drive the two groups of sliders 2103 to approach each other, and the approach of the two groups of sliders 2103 to each other will drive the two groups of clamping plates 2106 to approach each other, thereby clamping the circuit board; at the same time, starting the motor 2105 drives the two groups of clamping plates 2106 to move away from each other, so that the circuit board can be detached from the clamping assembly 21.

[0022] Working principle of the present invention: when in use, first place the circuit board that has not been tin-sprayed between the baffle 18 and the base 8 to keep the circuit board in a vertical state, add tin liquid into the tin liquid pool 1 through the feeding port 9, and then start the servo motor 17. Driven by the gear 15 and the chain 16, the two groups of screws 13 rotate at the same time. The rotation of the screw 13 will drive the two groups of sliders 12 to move. The movement of the two groups of sliders 12 will drive the bracket 19 to move. The movement of the bracket 19 will drive the clamping assembly 21 to move to the circuit board. Starting the hydraulic cylinder 20 can drive the clamping assembly 21 to move up and down, and then cooperate with the clamping assembly 21 to clamp the circuit board, and then start the servo motor 17 to drive the circuit board to move to just above the circuit board inlet and outlet 10. At this time, start the two groups of electric push rods 7 to drive the lifting frame 6 to move upward, and the upward movement of the lifting frame 6 drives the lifting rod 3 to move upward. The upward movement of the lifting rod 3 will drive the top The output plate 4 moves up, and the upward movement of the ejector plate 4 will drive the two rows of fixed rods 5 to move up and pass through the circuit board inlet and outlet 10. The distance between the two rows of fixed rods 5 is 1 cm thicker than the thickness of the circuit board. The hydraulic cylinder 20 is started to drive the circuit board to move down, and then the clamping assembly 21 is opened, so that the circuit board is between the two rows of fixed rods 5, so that the circuit board is relatively in a vertical state and will not lie flat on the ejector plate 4. Then, the two groups of electric push rods 7 are started to drive the circuit board into the tin liquid pool 1 to complete the tin spraying process. After the process is completed, the electric push rods 7 are used to drive the circuit board to the tin liquid pool 1, and then the clamping assembly 21 is used to clamp the circuit board, and the hydraulic cylinder 20 and the servo motor 17 are used to move the circuit board to a suitable position; the number of fixed rods 5 in each row and the height of the ejector 5 are replaced and installed according to the width and length of the circuit board to ensure that the clamping assembly 21 can clamp the circuit board between the two rows of fixed rods 5.

[0023] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A circuit board tin spraying device, comprising a tin liquid pool (1), characterized in that: The top of the tin liquid pool (1) is detachably provided with a top plate (2), the inner side of the top plate (2) is slidably connected with four groups of lifting rods (3), the bottom of the four groups of lifting rods (3) is fixedly installed with an ejection plate (4), the top of the ejection plate (4) is detachably installed with two rows of fixed rods (5), the four groups of lifting rods (3) are respectively fixedly connected with two groups of lifting frames (6), and the outer side of the tin liquid pool (1) is fixedly provided with two groups of electric push rods (7), and the telescopic ends of the two groups of electric push rods (7) are respectively fixedly connected with the two groups of lifting frames (6).

2. A circuit board tin spraying device according to claim 1, characterized in that: The tin liquid pool (1) is detachably mounted on the top of the base (8), and the top plate (2) is provided with a feeding port (9) and a circuit board inlet and outlet (10).

3. A circuit board tin spraying device according to claim 2, characterized in that: Two sets of slide grooves (11) are provided on the base (8), and sliders (12) are slidably connected in the slide grooves (11). The inner side of the slider (12) is threadedly connected with a screw rod (13), and the screw rod (13) is rotatably connected to a limit plate (14) via a bearing. The limit plate (14) is fixedly installed in the slide groove (11).

4. A circuit board tin spraying device according to claim 3, characterized in that: Gears (15) are fixedly sleeved on the outside of the two groups of screw rods (13), and the two groups of gears (15) are meshed with chains (16). One end of one group of screw rods (13) is fixedly connected to a servo motor (17), and the servo motor (17) is mounted on a motor frame, and the motor frame is fixedly connected to the outer wall of the base (8).

5. A circuit board tin spraying device according to claim 2, characterized in that: A baffle (18) is mounted on the top of the base (8).

6. A circuit board tin spraying device according to claim 3, characterized in that: A bracket (19) is fixedly mounted between the two groups of slide blocks (12), a hydraulic cylinder (20) is mounted on the bracket (19), and a telescopic end of the hydraulic cylinder (20) is fixedly connected to a fixed frame (2101) in the clamping assembly (21).

7. A circuit board tin spraying device according to claim 1, characterized in that: The clamping assembly (21) comprises a fixing frame (2101), a double-thread screw (2102) being rotatably connected to the fixing frame (2101) via a bearing, two groups of threads on the double-thread screw (2102) being respectively threadedly connected to two groups of sliders (2103), the inner sides of the two groups of sliders (2103) being slidably connected to guide rods (2104), both ends of the guide rods (2104) being fixedly connected to the fixing frame (2101), one end of the double-thread screw (2102) being fixedly connected to a motor (2105) and the motor (2105) being fixedly mounted on an outer wall of the fixing frame (2101), the bottoms of the two groups of sliders (2103) being fixedly connected to a clamping plate (2106), a soft pad (2107) being fixedly connected to one side of the two groups of clamping plates (2106), and a non-slip strip (2108) being fixedly connected to one side of the two groups of soft pads (2107).

Images