Circuit board pushing device for reflow soldering furnace

Abstract

The utility model relates to the technical field of circuit board processing, and provides a circuit board pushing device for a reflow soldering furnace, which comprises a conveying belt, a plurality of clamping grooves are arranged on the outer side of the conveying belt, supports are arranged on the front side and the rear side of the conveying belt, and a first motor is fixedly connected to the rear side of the support on the rear side. The output end of the first motor is fixedly connected with a turntable, the edge of the front side of the turntable is fixedly connected with a slender rod, the outer side of the slender rod is slidably connected with a hollow shell, the right side of the hollow shell is fixedly connected with a push rod, and the right side of the push rod is fixedly connected with a baffle. According to the conveying device, the first motor drives the rotating disc to rotate and then drives the slender rod to slide in the hollow shell, the hollow shell pushes the push rod to drive the pull rod to move synchronously under the limiting of the limiting block until the pull rod is clamped with the clamping groove, and under the action of the baffle, the pull rod pulls the clamping groove to drive the whole conveying belt to start conveying. Intermittent feeding is achieved, time and labor are saved, and excessive production and circuit board stacking can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board processing technical field, specifically, relate to a circuit board pushing device for reflow soldering furnace. BACKGROUND

[0002] Reflow soldering furnace, as indispensable equipment in the field of electronic manufacturing, its working principle is to control the heating environment accurately, make the solder paste melt at a specific temperature, so as to form stable and reliable welding points between electronic components and circuit board. Circuit board, i.e. printed circuit board (PCB), is the core component in electronic equipment for carrying and connecting electronic components. It fixes various electronic components such as integrated circuits, resistors, capacitors, etc. at specific positions through pre-designed circuit, and realizes the transmission and processing of electrical signals through metal wires. In order to carry out subsequent heating and welding process on the circuit board, a pushing device is needed to efficiently and stably transport the circuit board from one position to another during reflow soldering.

[0003] In the existing technology, accurately and efficiently sending the circuit board to the position of the reflow soldering furnace is an important link to ensure production efficiency and welding quality in the process flow of circuit board welding processing. Generally, workers use a cart or manually carry the circuit board to the designated position, which not only requires a lot of physical input, but also is difficult to complete the transportation of a large number of circuit boards in a short time due to the limitations of manual operation, which seriously limits the production efficiency, and directly leads to the extension of production cycle and the increase of production cost. UTILITY MODEL CONTENT

[0004] The utility model provides a circuit board pushing device for reflow soldering furnace, solves the problems in the related art that workers generally use a cart or manually carry the circuit board to the reflow soldering furnace, which not only requires a lot of physical input, but also is difficult to complete the transportation of a large number of circuit boards in a short time due to the limitations of manual operation, which seriously limits the production efficiency, and directly leads to the extension of production cycle and the increase of production cost.

[0005] The technical scheme of the utility model is as follows: a circuit board pushing device for reflow soldering furnace, comprising a conveying belt, a plurality of clamping grooves are formed on the outer side of the conveying belt, supports are arranged on the front and rear sides of the conveying belt, a first motor is fixedly connected to the rear side of the rear support, a turntable is fixedly connected to the output end of the first motor, a thin rod is fixedly connected to the front side edge of the turntable, a hollow shell is slidably connected to the outer side of the thin rod, a push rod is fixedly connected to the right side of the hollow shell, a baffle is fixedly connected to the right side of the push rod, a pull rod is rotatably connected to the side of the push rod close to the baffle, and a deviation rectifying assembly is arranged between the two supports and below the conveying belt.

[0006] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0007] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0008] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0009] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0010] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0011] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0012] Preferably, the deviation rectifying assembly comprises a mounting base fixedly connected outside between the two clamping grooves, a second motor fixedly connected at the bottom of the mounting base, a rotating rod fixedly connected at the output end of the second motor, a disc fixedly connected outside the rotating rod, two sliding grooves opened at the top of the mounting base, two guide rods fixedly connected inside the two sliding grooves, two moving plates slidingly connected outside the two guide rods, a connecting rod arranged between the moving plates and the disc, two U-shaped connecting frames fixedly connected at the opposite sides of the two moving plates, and two deviation rectifying plates fixedly connected at the ends of the two U-shaped connecting frames away from the moving plates.

[0013] The working principle and advantages of the utility model are as follows:

[0014] 1. In the utility model, the first motor drives the rotating disc to rotate, then drives the thin rod to slide inside the hollow shell, under the action of the hollow shell, the circular motion of the thin rod is converted into the circular motion of the hollow shell, then under the limiting of the limiting block, the hollow shell pushes the push rod to drive the pull rod to move synchronously, until the pull rod is clamped with the clamping groove, under the action of the baffle, the pull rod pulls the clamping groove to drive the whole conveying belt to start conveying, thereby realizing intermittent feeding, reducing manual intervention, improving production efficiency, avoiding excessive production and circuit board accumulation.

[0015] 2. In the utility model, the second motor drives the rotating rod and the disc to rotate, then drives the connecting rod to rotate, then drives the moving plate to move along the guide rod, thereby driving the deviation rectifying plate to move through the U-shaped connecting frame to adjust the seriously deviated circuit board, ensuring that the position of the circuit board is accurate when reaching the reflow furnace inlet on the conveying belt, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is the main view of the external structure of the pull rod of the utility model;

[0019] Figure 3 This is a top view of the external structure of the correction component of the utility model;

[0020] Figure 4 This is the main view of the internal structure of the mounting base of the utility model;

[0021] In the figure: 1. Conveyor belt; 2. Slot; 3. Bracket; 4. First motor; 5. Turntable; 6. Thin rod; 7. Hollow shell; 8. Push rod; 9. Baffle; 10. Pull rod; 11. Mounting base; 12. Second motor; 13. Turntable; 14. Disc; 15. Slide; 16. Guide rod; 17. Moving plate; 18. Connecting rod; 19. U-shaped connecting frame; 20. Correction plate; 21. Limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figures 1-2As shown, the embodiment proposes a circuit board pushing device for reflow soldering furnace, which comprises a conveying belt 1, a plurality of clamping grooves 2 are arranged on the outer side of the conveying belt 1, the conveying belt 1 is provided with a support 3 on the front and rear sides, the rear side support 3 is fixedly connected with a first motor 4 on the rear side, the output end of the first motor 4 is fixedly connected with a rotating disc 5, the front side edge of the rotating disc 5 is fixedly connected with a thin rod 6, the outer side of the thin rod 6 is slidably connected with a hollow shell 7, the right side of the hollow shell 7 is fixedly connected with a push rod 8, the right side of the push rod 8 is fixedly connected with a baffle 9, the side of the push rod 8 close to the baffle 9 is rotatably connected with a pull rod 10, and a deviation correcting assembly is arranged between the two supports 3 and below the conveying belt 1. The purpose of this kind of setting is that when the circuit board needs to be conveyed to the reflow furnace, the worker places the circuit board on the conveying belt 1, drives the rotating disc 5 to rotate through the first motor 4, and drives the thin rod 6 at the edge of the rotating disc 5 to slide in the hollow shell 7, under the action of the hollow shell 7, the circular motion of the rotating disc 5 is converted into the linear motion of the hollow shell 7, then under the limiting of the limiting block 21, the hollow shell 7 pushes the push rod 8 to drive the pull rod 10 to move rightward synchronously, when the pull rod 10 is clamped with the clamping groove 2 on the conveying belt 1, the rotating disc 5 drives the hollow shell 7 to move leftward, under the action of the baffle 9, the pull rod 10 pulls the clamping groove 2 to drive the whole conveying belt 1 to start conveying, when the hollow shell 7 moves to the leftmost side, the conveying belt 1 stops conveying, realizing intermittent feeding, which not only saves time and effort, but also reduces the problems of excessive production and circuit board accumulation.

[0025] Preferably, the pull rod 10 is clamped between the clamping groove 2, and the bottom of the pull rod 10 is slidably connected to the top rear side of the conveying belt 1. The purpose of this kind of setting is that the pull rod 10 and the clamping groove 2 cooperate with each other, so that the conveying belt 1 can realize intermittent conveying of the circuit board into the reflow furnace, and the bottom of the pull rod 10 is slidably connected to the top of the conveying belt 1, so that the pull rod 10 can accurately slide into the clamping groove 2, and through the clamping relationship between the pull rod 10 and the clamping groove 2, the conveying belt 1 can be intermittently pulled, ensuring the stability and accuracy of the conveying process.

[0026] Preferably, the outer side of the push rod 8 is slidably connected with a limiting block 21, and the bottom of the limiting block 21 is fixedly connected to the top of the rear side support 3. The purpose of this kind of setting is that the sliding connection between the outer side of the push rod 8 and the limiting block 21 effectively limits the lateral displacement of the push rod 8, ensuring the accurate movement of the push rod 8 in the linear direction, and the limiting block 21 is fixed on the top of the rear side support 3, providing stable support for the movement of the push rod 8, avoiding the influence of the stability of the circuit board due to the shaking of the push rod 8 when pushing the circuit board.

[0027] Preferably, the right side of the pull rod 10 abuts against the left side of the baffle 9. The purpose of this kind of setting is that the baffle 9 is used to limit the deflection direction of the pull rod 10, so that the pull rod 10 can only deflect to the left, ensuring that the pull rod 10 can move linearly along the predetermined path when performing the pushing action.

[0028] Embodiment 2

[0029] As Figure 1 , Figure 3 and Figure 4 illustrated, based on the same concept as Embodiment 1, this embodiment also proposes that the deviation correction assembly comprises a mounting base 11 fixedly connected outside between the two clamping grooves 2, a second motor 12 fixedly connected at the bottom of the mounting base 11, a rotating rod 13 fixedly connected at the output end of the second motor 12, a disc 14 fixedly connected outside the rotating rod 13, two sliding grooves 15 opened at the top of the mounting base 11, two guide rods 16 fixedly connected inside the two sliding grooves 15, two moving plates 17 slidingly connected outside the two guide rods 16, a connecting rod 18 arranged between the moving plates 17 and the disc 14, two U-shaped connecting frames 19 fixedly connected at the opposite sides of the two moving plates 17, and two deviation correction plates 20 fixedly connected at the ends of the two U-shaped connecting frames 19 away from the moving plates 17. The purpose of this arrangement is to ensure the accurate position of the circuit board on the conveying belt 1 when it reaches the entrance of the reflow furnace. By driving the second motor 12, the rotating rod 13 and the disc 14 are synchronously rotated, the disc 14 is rotated to drive the connecting rod 18 to rotate, and the connecting rod 18 is rotated to drive the moving plate 17 to move along the predetermined track of the guide rod 16, thereby driving the deviation correction plate 20 to move through the U-shaped connecting frame 19 to adjust the circuit board on the conveying belt 1 that deviates seriously, thereby improving the practicability of the device.

[0030] Preferably, one end of the connecting rod 18 is rotatably connected at the top of the disc 14, and the other end of the connecting rod 18 is rotatably connected at the bottom of the moving plate 17. The purpose of this arrangement is to transmit the rotary motion of the disc 14 to the moving plate 17 through the connecting rod 18, and to drive the moving plate 17 to slide outside the guide rod 16.

[0031] Preferably, the upper and lower ends of the rotating rod 13 are rotatably connected to the inner wall of the mounting base 11, and the bottom of the moving plate 17 is slidingly connected inside the sliding groove 15. The purpose of this arrangement is to ensure that the rotating rod 13 can rotate smoothly under the drive of the second motor 12, thereby driving the movement of the disc 14 and the deviation correction plate 20, and to ensure the stable sliding of the moving plate 17 on the guide rod 16.

[0032] Preferably, the U-shaped connecting frame 19 is slidingly connected inside the support 3, and the deviation correction plate 20 is slidingly connected at the top of the conveying belt 1. The purpose of this arrangement is to ensure the flexibility and stability of the deviation correction plate 20 when adjusting the position of the circuit board.

[0033] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A circuit board pushing device for a reflow oven, characterized in that: The utility model comprises a conveyor belt (1), wherein a plurality of slots (2) are provided on the outer side of the conveyor belt (1), brackets (3) are provided on both the front and rear sides of the conveyor belt (1), a first motor (4) is fixedly connected to the rear side of the bracket (3), a turntable (5) is fixedly connected to the output end of the first motor (4), a thin rod (6) is fixedly connected to the front edge of the turntable (5), a hollow shell (7) is slidably connected to the outer side of the thin rod (6), a push rod (8) is fixedly connected to the right side of the hollow shell (7), a baffle (9) is fixedly connected to the right side of the push rod (8), a pull rod (10) is rotatably connected to the side of the push rod (8) close to the baffle (9), and a deviation correction component is provided between the two brackets (3) and below the conveyor belt (1).

2. The circuit board pushing device for a reflow oven according to claim 1, characterized in that: The correction component includes a mounting base (11), the outer side of the mounting base (11) is fixedly connected between the two card slots (2), the bottom of the mounting base (11) is fixedly connected to a second motor (12), the output end of the second motor (12) is fixedly connected to a rotating rod (13), the outer side of the rotating rod (13) is fixedly connected to a disc (14), the top of the mounting base (11) is provided with two sliding grooves (15), the interiors of the two sliding grooves (15) are fixedly connected to guide rods (16), the outer sides of the two guide rods (16) are slidably connected to a moving plate (17), a connecting rod (18) is provided between the moving plate (17) and the disc (14), the opposite sides of the two moving plates (17) are fixedly connected to a U-shaped connecting frame (19), and the ends of the two U-shaped connecting frames (19) away from the moving plate (17) are fixedly connected to a correction plate (20).

3. The circuit board pushing device for a reflow oven according to claim 1, characterized in that: The pull rod (10) is engaged with the clamping slot (2), and the bottom of the pull rod (10) is slidably connected to the rear side of the top of the conveyor belt (1).

4. The circuit board pushing device for a reflow oven according to claim 1, characterized in that: The outer side of the push rod (8) is slidably connected to a limit block (21), and the bottom of the limit block (21) is fixedly connected to the top of the rear bracket (3).

5. The circuit board pushing device for a reflow oven according to claim 1, characterized in that: The right side of the pull rod (10) is in contact with the left side of the baffle (9).

6. The circuit board pushing device for a reflow oven according to claim 2, characterized in that: One end of the connecting rod (18) is rotatably connected to the top of the disc (14), and the other end of the connecting rod (18) is rotatably connected to the bottom of the movable plate (17).

7. The circuit board pushing device for a reflow oven according to claim 2, characterized in that: The upper and lower ends of the rotating rod (13) are both rotatably connected to the inner wall of the mounting base (11), and the bottom of the movable plate (17) is slidably connected to the inside of the sliding groove (15).

8. The circuit board pushing device for a reflow oven according to claim 2, characterized in that: The outer side of the U-shaped connecting frame (19) is slidably connected to the inside of the bracket (3), and the bottom of the correcting plate (20) is slidably connected to the top of the conveyor belt (1).

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