PCB conveying device for SMT production line

Abstract

The PCB conveying device for the SMT production line comprises a machine base, a conveying plate is fixedly connected to the left side of the upper end of the machine base, a turnover mechanism is arranged in the middle of the upper end of the machine base, a circuit board is in contact with the turnover mechanism, a buffering assembly is arranged on the right side of the upper end of the machine base, and the buffering assembly is arranged on the right side of the upper end of the machine base. The conveying rollers are arranged on the moving blocks, when the conveying rollers make contact with a circuit board, the conveying rollers can move, force brought by the circuit board is buffered, the conveying rollers are prevented from making rigid contact with the circuit board, and the circuit board is prevented from being damaged, meanwhile, the damping rods are arranged, the buffering force is consumed while the moving blocks are guided, and the service life of the circuit board is prolonged. The guide assembly is arranged at the rear end of the conveying roller, when the circuit board moves on the conveying roller, the guide plate can guide the circuit board, the circuit board is prevented from deviating, the discharging position of the fixed conveying roller is middle discharging, and later machining work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board conveying, in particular to a PCB board conveying device used in an SMT production line. Background Art

[0002] There are many types of PCB conveying devices commonly used in SMT (Surface Mount Technology) production lines. These devices are used to transfer printed circuit boards (PCBs) from one workstation to another to facilitate assembly and soldering. Conveyor Belt: This is a common conveying device that transfers PCB boards from one workstation to the next through one or more conveyor belts. The conveyor belt is usually made of rubber or plastic and can be driven by a motor to achieve continuous movement. Vacuum Conveying: This device uses vacuum force to absorb and transfer PCB boards to the target location. It usually includes components such as vacuum pumps, suction cups, and transmission pipes.

[0003] The prior art provides a PCB board conveying device for an SMT production line (Announcement No.: CN220200551U), which includes a machine base, a conveying module A and a conveying module B are arranged inside the machine base, the conveying module A and the conveying module B are on the same horizontal plane, and a flipping component is arranged on the top of the machine base, the flipping component includes a guide assembly, the guide assembly includes a guide rail, and the guide rail is arranged between the conveying module A and the conveying module B. In the utility model, the positioning seat on the reciprocating slide performs a linear reciprocating motion on the surface of the guide rail, and the feed positioning plate and the push positioning plate on the same central axis are positioned, so that the positions of the flipped circuit boards are all on the same straight line after being placed, thereby reducing the probability of circuit board dislocation and ensuring the production quality of the circuit board.

[0004] However, the device still has the following defects:

[0005] When the device is in use, after the flipping mechanism flips over and places the circuit board on the conveyor roller, due to the gravity of the circuit board itself and the force applied by the flipping mechanism, there will be a certain collision between the circuit board and the conveyor roller. If the conveyor roller is fixedly installed, the circuit board may be damaged. Due to the discontinuity of the conveyor roller and the irregular shape of the circuit board surface, the direction of the circuit board will inevitably shift when the conveyor roller is transported. Utility Model Content

[0006] The purpose of the utility model is to provide a PCB board conveying device for an SMT production line. By changing the conveying roller to an elastic installation, a rigid collision between the conveying roller and the circuit board, which may cause damage to the circuit board, is avoided. At the same time, a guide component is added to avoid the circuit board on the conveying roller from being offset, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A PCB board conveying device for an SMT production line comprises a machine base, a conveying plate is fixedly connected to the left side of the upper end of the machine base, a flip mechanism is arranged in the middle of the upper end of the machine base, a circuit board is contacted on the flip mechanism, a buffer assembly is arranged on the right side of the upper end of the machine base, a conveying roller is arranged on the buffer assembly, a guide assembly is arranged on the upper end of the machine base, the guide assembly comprises a fixed rod, a knob is contacted on the outer side of the fixed rod, a positive and negative screw rod is fixedly connected to one end of the knob close to the fixed rod, and the positive and negative screw rod is connected to the fixed rod through a bearing.

[0009] Preferably, the buffer assembly includes an installation groove, the base is provided with an installation groove inside, a moving block is slidably connected inside the installation groove, a conveying roller is connected inside the moving block through a bearing, a damping rod is fixedly connected to the lower end of the moving block, and a spring is arranged on the outside of the damping rod.

[0010] Preferably, it also includes an internal thread plate that is connected to the outer sides of the forward and reverse screw rods through threads, and the internal thread plate is slidably connected to the fixed rod.

[0011] Preferably, a rectangular limiting rod is fixedly connected to the lower end of the internal thread plate, a movable plate is slidably connected to the outer side of the rectangular limiting rod, and the movable plate is in contact with the internal thread movable plate.

[0012] Preferably, a guide plate is fixedly connected to the outer bottom of the movable plate, and the guide plate is in contact with the conveying roller.

[0013] Preferably, one end of the spring is fixedly connected to the mounting groove, and the other end of the spring is fixedly connected to the moving block.

[0014] Preferably, a through hole is provided inside the base, and the through hole is slidably connected to the damping rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges the conveying roller on the moving block so that the conveying roller can move when contacting the circuit board, so as to buffer the force brought by the circuit board and avoid the rigid contact between the conveying roller and the circuit board to cause damage to the circuit board. At the same time, a damping rod is arranged to consume the buffering force while guiding the moving block. A guide component is arranged at the rear end of the conveying roller. When the circuit board moves on the conveying roller, the guide plate can guide the circuit board to prevent the circuit board from deviating. The discharging position of the fixed conveying roller is the middle discharging, which is beneficial to the later processing work. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 Practical Figure 2 A magnified view of area A in;

[0020] Figure 4 It is a structural schematic diagram of the internal thread plate of the utility model.

[0021] In the figure: 1. base; 2. conveying plate; 3. flip mechanism; 4. circuit board; 5. buffer assembly; 51. mounting slot; 52. moving block; 53. damping rod; 54. spring; 55. through hole; 6. conveying roller; 7. guide assembly; 71. fixing rod; 72. knob; 73. forward and reverse screw rod; 74. internal thread plate; 75. rectangular limit rod; 76. moving plate; 77. guide plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A PCB board conveying device for an SMT production line comprises a machine base 1, a conveying plate 2 is fixedly connected to the left side of the upper end of the machine base 1, a turning mechanism 3 is arranged in the middle of the upper end of the machine base 1, a circuit board 4 is contacted on the turning mechanism 3, a buffer assembly 5 is arranged on the right side of the upper end of the machine base 1, a conveying roller 6 is arranged on the buffer assembly 5, a guide assembly 7 is arranged on the upper end of the machine base 1, the guide assembly 7 comprises a fixed rod 71, the outer side of the fixed rod 71 is in contact with a knob 72, one end of the knob 72 close to the fixed rod 71 is fixedly connected to a forward and reverse screw rod 73, and the forward and reverse screw rod 73 is connected to the fixed rod 71 through a bearing.

[0025] The buffer assembly 5 includes a mounting groove 51. The mounting groove 51 is opened inside the machine base 1. A moving block 52 is slidably connected inside the mounting groove 51. The inside of the moving block 52 is connected to the conveying roller 6 through a bearing. The lower end of the moving block 52 is fixedly connected to a damping rod 53. A spring 54 is arranged on the outside of the damping rod 53.

[0026] The inner thread plate 74 is connected to the outer side of the forward and reverse screw rods 73 by threads, and the inner thread plate 74 is slidably connected to the fixing rod 71 .

[0027] A rectangular limiting rod 75 is fixedly connected to the lower end of the internal thread plate 74 , and a moving plate 76 is slidably connected to the outer side of the rectangular limiting rod 75 , and the moving plate 76 is in contact with the internal thread moving plate.

[0028] Through the design of the rectangular limiting rod 75 , the rectangular limiting rod 75 controls the position of the movable plate 76 , and the movable plate 76 is closely attached to the conveying roller 6 under the action of gravity, thereby ensuring the normal use of the guide plate 77 .

[0029] A guide plate 77 is fixedly connected to the outer bottom of the movable plate 76 , and the guide plate 77 is in contact with the conveying roller 6 .

[0030] One end of the spring 54 is fixedly connected to the mounting groove 51 , and the other end of the spring 54 is fixedly connected to the moving block 52 .

[0031] Through the design of the spring 54 , the spring 54 collects the force of the moving block 52 , and at the same time the spring 54 plays a buffering role.

[0032] A through hole 55 is formed inside the base 1 , and the through hole 55 is slidably connected to the damping rod 53 .

[0033] Through the design of the through hole 55 , the through hole 55 accommodates the damping rod 53 , and when the damping rod 53 moves in the through hole 55 , force is consumed due to the damping effect.

[0034] Working principle: When the utility model is used, the circuit board 4 is transported by the conveying plate 2, and the flipping mechanism 3 flips the circuit board 4 transported by the conveying plate 2 onto the conveying roller 6. When the circuit board 4 is pressed on the conveying roller 6, the moving block 52 is forced to move downward, and the spring 54 is compressed to play a buffering role. When the damping rod 53 moves in the through hole 55, the damping effect consumes the force, and the circuit board 4 continues to move under the action of the conveying roller 6.

[0035] According to the shape of the processed circuit board 4, the knob 72 is rotated, and the forward and reverse screw rods 73 are rotated. The forward and reverse screw rods 73 and the internal thread plate 74 undergo threaded motion, and the internal thread plate 74 moves, driving the movable plate 76 and the guide plate 77 to move. The guide plate 77 guides the circuit board 4 to ensure that the circuit board 4 is transported out from the middle of the conveying roller 6, fixes the discharge position, and facilitates the subsequent processing work. For the specific work flow, see the utility model with the authorization announcement number CN220200551U.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB board conveying device for an SMT production line, comprising a base (1), characterized in that: A conveying plate (2) is fixedly connected to the left side of the upper end of the machine base (1); a turning mechanism (3) is arranged in the middle of the upper end of the machine base (1); a circuit board (4) is contacted on the turning mechanism (3); a buffer assembly (5) is arranged on the right side of the upper end of the machine base (1); a conveying roller (6) is arranged on the buffer assembly (5); a guide assembly (7) is arranged at the upper end of the machine base (1); the guide assembly (7) comprises a fixed rod (71); the outer side of the fixed rod (71) is in contact with a knob (72); one end of the knob (72) close to the fixed rod (71) is fixedly connected to a forward and reverse screw rod (73); the forward and reverse screw rod (73) is connected to the fixed rod (71) via a bearing.

2. The PCB conveying device for an SMT production line according to claim 1, characterized in that: The buffer assembly (5) comprises a mounting groove (51), the mounting groove (51) is provided inside the machine base (1), a moving block (52) is slidably connected inside the mounting groove (51), a conveying roller (6) is connected inside the moving block (52) via a bearing, a damping rod (53) is fixedly connected to the lower end of the moving block (52), and a spring (54) is provided on the outer side of the damping rod (53).

3. The PCB conveying device for an SMT production line according to claim 1, characterized in that: It also includes an internal thread plate (74) that is threadably connected to the outer side of the forward and reverse screw rods (73), and the internal thread plate (74) is slidably connected to the fixed rod (71).

4. The PCB conveying device for an SMT production line according to claim 3, characterized in that: The lower end of the internal thread plate (74) is fixedly connected to a rectangular limiting rod (75), and the outer side of the rectangular limiting rod (75) is slidably connected to a moving plate (76), and the moving plate (76) is in contact with the internal thread moving plate.

5. The PCB conveying device for an SMT production line according to claim 4, characterized in that: A guide plate (77) is fixedly connected to the outer bottom of the movable plate (76), and the guide plate (77) is in contact with the conveying roller (6).

6. The PCB conveying device for an SMT production line according to claim 2, characterized in that: One end of the spring (54) is fixedly connected to the mounting groove (51), and the other end of the spring (54) is fixedly connected to the moving block (52).

7. The PCB conveying device for an SMT production line according to claim 1, characterized in that: A through hole (55) is provided inside the machine base (1), and the through hole (55) is slidably connected to the damping rod (53).

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