Automatic PCB (Printed Circuit Board) feeding machine

Abstract

The utility model relates to the technical field of board feeding machines, in particular to an automatic PCB feeding machine which comprises a U-shaped rack and a discharging platform, a lifting mechanism is arranged on the upper surface of the bottom of the U-shaped rack, the output end of the lifting mechanism is in driving connection with a lifting table, one end of the lifting table is fixedly connected with a first limiting plate, and the other end of the lifting table is fixedly connected with a second limiting plate. A first sliding groove is formed in the lifting table, a limiting lead screw and a limiting motor for driving the limiting lead screw are arranged in the first sliding groove, a second limiting plate is connected to the limiting lead screw in a threaded mode, the second limiting plate directly faces the first limiting plate, and a transfer box is placed between the first limiting plate and the second limiting plate. The discharging platform is fixedly connected to the rear end of the U-shaped rack, and a pushing mechanism is arranged at the bottom of the discharging platform. According to the utility model, the positioning and fixing of the transfer box are realized, and the situation of blanking collision in the blanking and plate feeding process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of board feeders, and more specifically to an automatic PCB board feeder. Background Art

[0002] The PCB board automatic feeder is mainly used to transport PCB boards to the production line one by one. The existing PCB board automatic feeder has a variety of board feeding methods, including vacuum adsorption, drop loading, push board loading, etc. Among them, the push board loading is to place the turnover box containing the PCB board on the lifting platform, gradually rise through the lifting platform, adjust the height of the turnover box, and push the PCB boards placed on the turnover box one by one through the push board mechanism, so that the PCB boards enter the material transport mechanism to complete the automatic loading process. However, the existing lifting platform does not limit and fix the placed turnover box, the turnover box is relatively high, the position of the turnover box is not accurate, and the turnover box shakes during the rising process, which may cause the PCB board on the turnover box to be misaligned with the material transport mechanism, resulting in positioning deviation, causing the pushed PCB board to collide with the material transport mechanism, causing product damage and affecting the normal operation of the production line. Utility Model Content

[0003] The utility model aims to provide an automatic PCB board feeding machine, which can realize the positioning and fixing of the transfer box and avoid the situation of material collision during the material feeding process.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A PCB board automatic feeder comprises a U-shaped frame and a unloading platform, wherein a lifting mechanism is arranged on the bottom upper surface of the U-shaped frame, and an output end of the lifting mechanism is drivingly connected to the lifting platform, one end of the lifting platform is fixedly connected to a first limit plate, a first slide groove is provided on the lifting platform, a limit screw rod and a limit motor for driving the limit screw rod are arranged in the first slide groove, a second limit plate is threadedly connected to the limit screw rod, the second limit plate is arranged opposite to the first limit plate, a transfer box is placed between the first limit plate and the second limit plate, the unloading platform is fixedly connected to the rear end of the U-shaped frame, and a pushing mechanism is arranged at the bottom of the unloading platform.

[0006] Furthermore, the lifting mechanism includes a lifting screw rod and a lifting motor driving the lifting screw rod installed on the bottom upper surface of the U-shaped frame, a first guide rod is fixedly connected to the bottom upper surface of the U-shaped frame, the lifting platform is slidably sleeved on the first guide rod, and the lifting platform is threadedly connected to the lifting screw rod.

[0007] Furthermore, the transfer box includes a bottom plate, one end of the bottom plate is vertically fixedly connected to a first material placing plate, one side of the first material placing plate is fixedly connected to a second guide rod, one side of the bottom of the first material placing plate is rotatably provided with a distance adjusting screw, an adjusting motor for driving the distance adjusting screw to rotate is installed on the bottom plate, a second material placing plate is threadedly connected to the distance adjusting screw, the second material placing plate is slidably sleeved on the second guide rod, and multiple layers of material loading plates are longitudinally arranged on opposite sides of the first material placing plate and the second material placing plate, and the material loading plates on both sides are arranged one by one.

[0008] Furthermore, the pushing mechanism includes an electric telescopic rod installed at the bottom of the unloading platform, and the piston rod end of the electric telescopic rod is fixedly connected to a pushing block.

[0009] Furthermore, a material transport mechanism is provided at the front end of the U-shaped frame, and the material transport mechanism is arranged opposite to the pushing block.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Place the transfer box between the first limit plate and the second limit plate, and drive the limit screw to rotate through the limit motor to bring the second limit plate close to the first limit plate, so that the transfer box is fixedly clamped between the first limit plate and the second limit plate, thereby realizing the positioning and fixation of the transfer box, avoiding the collision of the material during the process of unloading and feeding the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 The structure of the utility model is shown in FIG. Figure 3 .

[0015] 1. U-shaped frame; 2. Unloading platform; 3. Lifting platform; 301. First slide; 4. First limit plate; 5. Limit screw rod; 6. Limit motor; 7. Second limit plate; 8. Lifting screw rod; 9. Lifting motor; 10. First guide rod; 11. Bottom plate; 12. First material placement plate; 13. Second guide rod; 14. Adjustable distance screw rod; 15. Adjustable distance motor; 16. Second material placement plate; 17. Loading plate; 18. Electric telescopic rod; 19. Push block. DETAILED DESCRIPTION

[0016] like Figures 1 to 3As shown, a PCB board automatic feeder comprises a U-shaped frame 1 and a discharge platform 2, a lifting mechanism is arranged on the bottom upper surface of the U-shaped frame 1, an output end of the lifting mechanism is drivingly connected with a lifting platform 3, one end of the lifting platform 3 is fixedly connected with a first limit plate 4, a first slide groove 301 is opened on the lifting platform 3, a limit screw rod 5 and a limit motor 6 for driving the limit screw rod 5 are arranged in the first slide groove 301, a second limit plate 7 is threadedly connected to the limit screw rod 5, the second limit plate 7 is arranged opposite to the first limit plate 4, a transfer box is placed between the first limit plate 4 and the second limit plate 7, the discharge platform 2 is fixedly connected to the rear end of the U-shaped frame 1, and a pushing mechanism is arranged at the bottom of the discharge platform 2.

[0017] The lifting mechanism includes a lifting screw 8 and a lifting motor 9 installed on the bottom upper surface of the U-shaped frame 1, and the first guide rod 10 is fixedly connected to the bottom upper surface of the U-shaped frame 1. The lifting platform 3 is slidably sleeved on the first guide rod 10, and the lifting platform 3 is threadedly connected to the lifting screw 8.

[0018] The transfer box includes a bottom plate 11, one end of the bottom plate 11 is vertically fixedly connected to a first material loading plate 12, one side of the first material loading plate 12 is fixedly connected to a second guide rod 13, a bottom side of the first material loading plate 12 is rotatably provided with a pitch-adjusting screw rod 14, a pitch-adjusting motor 15 for driving the pitch-adjusting screw rod 14 to rotate is installed on the bottom plate 11, a second material loading plate 16 is threadedly connected to the pitch-adjusting screw rod 14, and the second material loading plate 16 is slidably sleeved on the second guide rod 13, and a multi-layer material loading plate 17 is longitudinally arranged on the opposite side of the first material loading plate 12 and the second material loading plate 16, and the material loading plates 17 on both sides are arranged one by one; the two ends of the PCB board are placed on the material loading plates 17 on both sides, and the pitch-adjusting screw rod 14 is driven to rotate by the pitch-adjusting motor 15 to bring the second material loading plate 16 close to or away from the first material loading plate 12, and the spacing between the first material loading plate 12 and the second material loading plate 16 is adjusted to adapt to the placement of PCB boards of different widths.

[0019] The pushing mechanism comprises an electric telescopic rod 18 installed at the bottom of the unloading platform 2 , and a pushing block 19 is fixedly connected to the piston rod end of the electric telescopic rod 18 .

[0020] A material transport mechanism is disposed at the front end of the U-shaped frame 1 , and the material transport mechanism is disposed directly opposite to the push block 19 ; the material transport mechanism is a material transport device such as a conveyor belt.

[0021] Working principle:

[0022] The bottom plate 11 is placed between the first limit plate 4 and the second limit plate 7, and the limit motor 6 drives the limit screw 5 to rotate and brings the second limit plate 7 close to the first limit plate 4, so that the bottom plate 11 is fixedly clamped between the first limit plate 4 and the second limit plate 7, thereby realizing the positioning and fixation of the transfer box to avoid the occurrence of material collision during the process of unloading and feeding the board; the lifting motor 9 drives the lifting screw 8 to rotate and brings the lifting platform 3 to rise along the first guide rod 10, so that the loaded PCB board is facing the conveying mechanism. At this time, the electric telescopic rod 18 drives the push block 19 to approach the PCB board, pushes the PCB board onto the conveying mechanism, and conveys the PCB board to the next process through the conveying mechanism. Then the lifting motor 9 drives the transfer box to rise, and brings the PCB board to move up in sequence for unloading.

[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A PCB board automatic feeding machine, characterized by: The invention comprises a U-shaped frame (1) and a discharge platform (2), wherein a lifting mechanism is arranged on the upper surface of the bottom of the U-shaped frame (1), the output end of the lifting mechanism is drivingly connected to a lifting platform (3), one end of the lifting platform (3) is fixedly connected to a first limit plate (4), a first slide groove (301) is provided on the lifting platform (3), a limit screw rod (5) and a limit motor (6) for driving the limit screw rod (5) are arranged in the first slide groove (301), a second limit plate (7) is threadedly connected to the limit screw rod (5), the second limit plate (7) is arranged opposite to the first limit plate (4), a transfer box is placed between the first limit plate (4) and the second limit plate (7), the discharge platform (2) is fixedly connected to the rear end of the U-shaped frame (1), and a pushing mechanism is arranged at the bottom of the discharge platform (2).

2. The automatic PCB board feeding machine according to claim 1, characterized in that: The lifting mechanism comprises a lifting screw (8) and a lifting motor (9) mounted on the bottom upper surface of the U-shaped frame (1) for driving the lifting screw (8); a first guide rod (10) is fixedly connected to the bottom upper surface of the U-shaped frame (1); the lifting platform (3) is slidably sleeved on the first guide rod (10); and the lifting platform (3) is threadedly connected to the lifting screw (8).

3. The automatic PCB board feeding machine as claimed in claim 2, characterized in that: The transfer box comprises a bottom plate (11), one end of the bottom plate (11) is vertically fixedly connected to a first material placing plate (12), one side of the first material placing plate (12) is fixedly connected to a second guide rod (13), one side of the bottom of the first material placing plate (12) is rotatably provided with a pitch-adjusting screw rod (14), a pitch-adjusting motor (15) for driving the pitch-adjusting screw rod (14) to rotate is installed on the bottom plate (11), a second material placing plate (16) is threadedly connected to the pitch-adjusting screw rod (14), the second material placing plate (16) is slidably sleeved on the second guide rod (13), and a plurality of layers of material carrying plates (17) are longitudinally provided on opposite sides of the first material placing plate (12) and the second material placing plate (16), and the material carrying plates (17) on both sides are arranged one by one.

4. The automatic PCB board feeding machine according to claim 1, characterized in that: The pushing mechanism comprises an electric telescopic rod (18) installed at the bottom of the unloading platform (2), and a pushing block (19) is fixedly connected to the piston rod end of the electric telescopic rod (18).

5. The automatic PCB board feeding machine as claimed in claim 4, characterized in that: A material transport mechanism is arranged at the front end of the U-shaped frame (1), and the material transport mechanism is arranged directly opposite to the push block (19).

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