Feeding mechanism for PCB (Printed Circuit Board) rack

Abstract

The utility model discloses a feeding mechanism for a PCB (printed circuit board) material rack, which comprises a material rack, PCBs are loaded on the material rack layer by layer, and one side of the front end of the material rack is provided with a baffle plate through an inclined guide groove to limit the PCBs; the conveying line is used for transplanting the material frame, an unlocking mechanism is arranged on the side of the output end of the conveying line and comprises a jacking air cylinder and a lifting plate, and the lifting plate is fixedly arranged at the air cylinder end of the jacking air cylinder and horizontally extends in the direction perpendicular to the side of the conveying line. When the material frame is transferred to the output end of the conveying line by the conveying line, the baffle is located above the lifting plate, the jacking air cylinder drives the lifting plate to lift so as to drive the baffle to move upwards synchronously, and the baffle translates outwards along the inclined guide groove at the same time so as to relieve limiting of the PCB. According to the scheme, the conveying line is arranged to convey the material frame, the baffle is arranged on one side of the material frame to limit stability of the PCBs in the conveying process, the unlocking mechanism is arranged on one side of the output end of the conveying line, the baffle is lifted to be matched with the inclined guide groove to move away the baffle outwards, blocking of the PCBs is relieved, and the conveying line can be conveniently in butt joint with a transplanting mechanism for PCB feeding.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board feeding devices, and specifically to a feeding mechanism for a PCB board material rack. Background Technology

[0002] After PCB boards and PCBA boards are processed, they need to be transported to their required locations. Traditional manual loading, one by one, is inefficient and easily contaminates the surfaces of the finished PCBs and PCBA boards, severely impacting subsequent processing steps. Therefore, to address the self-feeding problem of PCB boards, existing technologies have developed loading racks for centralized loading, such as the loading box of an automatic loading machine double-board loading system disclosed in publication number CN 206537940U. Such racks allow multiple PCB boards to be stacked and transported as a whole, significantly improving loading efficiency. However, this rack lacks positioning mechanisms at the front and rear ends of the PCB boards to define their positions. This makes it easy for PCB boards placed on the loading box to slip or fall due to inertia during transport.

[0003] To address the stability issue of PCB placement, some material racks have baffles at the front of the PCBs to limit their position and prevent them from sliding out due to inertia. However, if a limiting mechanism is installed on the loading box, an additional unlocking mechanism is required after the loading box is in place, making the process cumbersome and difficult to automate. Therefore, a material loading mechanism that facilitates PCB loading is needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a feeding mechanism for PCB board racks.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A PCB board loading mechanism includes a rack that loads PCB boards layer by layer. A baffle is provided on one side of the rack's front end via an inclined guide groove to confine the PCB boards. A conveyor line is used to transfer the rack. An unlocking mechanism is provided on the side of the conveyor line's output end. The unlocking mechanism includes a lifting cylinder and a lifting plate. The lifting plate is fixed to the cylinder end of the lifting cylinder and extends horizontally in a direction perpendicular to the side of the conveyor line. When the rack is transferred to the output end of the conveyor line, the baffle is located above the lifting plate. The lifting cylinder drives the lifting plate to lift, thereby causing the baffle to move upward synchronously. The baffle simultaneously moves outward along the inclined guide groove to release the restriction on the PCB boards.

[0007] Preferably, the cylinder end of the lifting cylinder is located at its bottom. In the initial state, the lifting plate abuts against the end face of the conveyor line, and the lifting cylinder drives the lifting plate to move upward by contracting.

[0008] Preferably, a positioning bracket is mounted on the output end of the conveyor line, and a stop block is provided on the positioning bracket to abut against the material rack, thereby limiting the position of the material rack.

[0009] Preferably, the side of the conveyor line adjacent to the baffle is the positioning side, and a pushing mechanism is provided on the other side opposite to the positioning side to drive the material rack to move until it abuts against the positioning side. The unlocking mechanism is provided on the positioning side.

[0010] Preferably, the pushing mechanism includes a first pushing cylinder and a second pushing cylinder. At least one first pushing cylinder is provided on the side of the conveyor line opposite to the positioning side, and a second pushing cylinder is provided on the top of the positioning bracket on the same side. The first pushing cylinder is directly opposite the bottom of the material rack, and the second pushing cylinder is directly opposite the top of the material rack. The first pushing cylinder and the second pushing cylinder extend synchronously to jointly drive the material rack to translate to the positioning side.

[0011] Preferably, the conveyor line has an opening on the side opposite to the positioning side so that the cylinder end of the first push cylinder can extend out, and a push plate that matches the top of the material rack is fixed to the cylinder end of the second push cylinder.

[0012] Preferably, a padding layer is provided on the inner wall of the positioning side.

[0013] Preferably, a detection sensor for detecting the material rack is provided on one side of the positioning bracket.

[0014] Preferably, the conveyor line is a belt conveyor line, with a belt on each side of the conveyor line, and the ends of the two belts are respectively connected to a transmission rod. The transmission rod is driven to rotate by a belt drive motor to drive the two belts to convey synchronously.

[0015] Preferably, the conveyor line is a roller conveyor line, wherein the ends of a group of rollers are connected by a synchronous belt and are driven synchronously by the roller drive motor.

[0016] The beneficial effects of this utility model are mainly reflected in:

[0017] 1. A conveyor line is set up to transfer the material rack, and a baffle is set on one side of the material rack to limit the stability of the PCB board during the transfer process. An unlocking mechanism is set on one side of the output end of the conveyor line. By lifting the baffle and cooperating with the inclined guide groove, the baffle is moved outward to remove the obstruction to the PCB board, so as to facilitate docking with the transfer mechanism for PCB board feeding.

[0018] 2. A pushing mechanism is provided on the opposite side of the positioning side to push the material rack so that the material rack abuts against the positioning groove. On the one hand, this aligns the baffle with the lifting plate, and on the other hand, it limits the position of the material rack, thereby stabilizing the position of the material rack during the feeding process. Attached Figure Description

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0020] Figure 1 : A schematic diagram of the first embodiment of this utility model;

[0021] Figure 2 :Book Figure 1 An enlarged schematic diagram of part A in the middle;

[0022] Figure 3 : A schematic diagram of the first embodiment of this utility model from another angle;

[0023] Figure 4 : Partial schematic diagram of the second embodiment of this utility model;

[0024] Figure 5 : A partial schematic diagram of the second embodiment of this utility model from another angle. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0026] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0027] like Figures 1 to 5 As shown, this utility model discloses a PCB board loading mechanism, including a rack 1, which loads PCB boards layer by layer. A baffle 102 is provided on one side of the front end of the rack 1 via an inclined guide groove 101 to limit the PCB boards. A conveyor line 2 is used to transfer the rack 1. An unlocking mechanism is provided on the side of the output end of the conveyor line 2. The unlocking mechanism includes a lifting cylinder 3 and a lifting plate 301. The lifting plate 301 is fixed to the cylinder end of the lifting cylinder 3 and extends horizontally in a direction perpendicular to the side of the conveyor line 2. When the rack 1 is transferred to the output end of the conveyor line 2, the baffle 102 is located above the lifting plate 301. The lifting cylinder 3 drives the lifting plate 301 to lift, thereby driving the baffle 102 to move upward synchronously. The baffle 102 moves outward along the inclined guide groove 101 at the same time to release the restriction on the PCB boards.

[0028] This solution uses a conveyor line 2 to transport the material rack 1, and a baffle 102 is provided on one side of the material rack 1 to stabilize the PCB board during transport. An unlocking mechanism is provided at the output end of the conveyor line 2. By lifting the baffle 102, it cooperates with the inclined guide groove 101 to move the baffle 102 outward, thereby removing the obstruction to the PCB board and facilitating docking with the transfer mechanism for PCB board feeding. Preferably, the inclined guide groove 101 extends at a 45° angle, and bolts on the material rack 1 are slidably engaged within the inclined guide groove 101, allowing the baffle 102 to slide along the inclined guide groove 101 to block or release the PCB board.

[0029] Specifically, the cylinder end of the lifting cylinder 3 is located at its bottom. In the initial state, the lifting plate 301 abuts against the end face of the conveyor line 2, and the lifting cylinder 3 drives the lifting plate 301 to move upward by retracting. This structure facilitates the installation of the lifting cylinder 3, and the stroke of the cylinder end of the lifting cylinder 3 is not less than the vertical height of the inclined guide groove 101.

[0030] Furthermore, a positioning bracket 4 is mounted on the output end of the conveyor line 2. The positioning bracket 4 is equipped with a stop 401 to abut against the material rack 1, thereby limiting the position of the material rack 1. The positioning bracket 2 is a rectangular frame with a hollow interior to facilitate docking with other mechanisms.

[0031] The side of the conveyor line 2 adjacent to the baffle 102 is a positioning side 200. A pushing mechanism is provided on the opposite side of the positioning side 200 to drive the material rack 1 to translate until it abuts against the positioning side 200. The unlocking mechanism is located on the positioning side 200. The pushing mechanism pushes the material rack 1 to the positioning side 200, which on the one hand aligns the baffle 102 with the lifting plate 301, and on the other hand limits the position of the material rack 1, thus stabilizing its position during the feeding process.

[0032] Furthermore, a pad 206 is provided on the inner wall of the positioning side 200. The pad 206 is made of wear-resistant material to enhance the wear resistance of the positioning side 200 and improve its service life.

[0033] like Figure 4 As shown, the pushing mechanism includes a first pushing cylinder 501 and a second pushing cylinder 502. At least one first pushing cylinder 501 is provided on the other side of the conveyor line 2 opposite to the positioning side 200, and a second pushing cylinder 502 is provided on the top of the positioning bracket 4 on the same side. The first pushing cylinder 501 is directly opposite the bottom of the material rack 1, and the second pushing cylinder 502 is directly opposite the top of the material rack 1. The first pushing cylinder 501 and the second pushing cylinder 502 extend synchronously to jointly drive the material rack 1 to translate to the positioning side 200.

[0034] Preferably, two first push cylinders 501 are provided on the side of the conveyor line 2 opposite to the positioning side 200 to smoothly drive the translation of the material rack 1, and an opening is provided on the side of the conveyor line 2 opposite to the positioning side 200 to allow the cylinder end of the first push cylinder 501 to extend. A push plate 503 matching the top of the material rack 1 is fixedly connected to the cylinder end of the second push cylinder 502 to increase the contact area between it and the top of the material rack 1 and ensure the smoothness of its pushing.

[0035] Furthermore, a detection sensor 5 is provided on one side of the positioning bracket 4 to detect the material rack 1. It is used to check whether the material rack 1 has reached the output end of the conveyor line 2, so as to facilitate the control of the unlocking mechanism to unlock the baffle 102.

[0036] The conveyor line 2 in this solution has multiple implementations. In the first embodiment of the conveyor line 2, the conveyor line 2 is a belt conveyor line, with a belt 201 on each side of the conveyor line 2. The ends of the two belts 201 are respectively connected to a transmission rod 202. The transmission rod 202 is driven to rotate by a belt drive motor 203 to drive the two belts 201 to convey synchronously.

[0037] In the second embodiment of the conveyor line 2, the conveyor line 2 is a roller conveyor line. The ends of a group of rollers are connected by a synchronous belt 204 and driven synchronously by a roller drive motor (not shown in the figure). The roller drive motor is built into one of the rollers to drive the rollers to rotate, thereby driving the group of rollers to rotate synchronously. This is prior art and not the focus of this solution, so it will not be described in detail here.

[0038] In this solution, the positioning bracket 4 and the conveyor line 2 are a set, and multiple sets can be arranged in parallel as needed to improve conveying efficiency.

[0039] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A feeding mechanism for PCB board racks, characterized in that: The application relates to a PCB loading device, which comprises a rack (1) loaded with PCBs layer by layer, a front end side of the rack (1) is provided with a baffle (102) through an inclined guide groove (101) to limit the PCBs, a conveying line (2) is used for moving the rack (1), and an unlocking mechanism is arranged on the side of the output end of the conveying line (2); the unlocking mechanism comprises a jacking cylinder (3) and a lifting plate (301), the lifting plate (301) is fixed to the cylinder end of the jacking cylinder (3) and extends horizontally in a direction perpendicular to the side of the conveying line (2), when the rack (1) is moved to the output end of the conveying line (2), the baffle (102) is located above the lifting plate (301), the jacking cylinder (3) drives the lifting plate (301) to lift, so that the baffle (102) is synchronously moved upwards, and the baffle (102) is simultaneously translated outward along the inclined guide groove (101) to release the limitation on the PCBs.

2. The PCB loading mechanism for a PCB rack according to claim 1, wherein: The cylinder end of the jacking cylinder (3) is located at the bottom, in the initial state, the lifting plate (301) abuts against the end face of the conveying line (2), and the jacking cylinder (3) drives the lifting plate (301) to move upwards by contraction.

3. The PCB loading mechanism for a PCB rack according to claim 2, characterized in that: A positioning support (4) is arranged on the output end of the conveying line (2), and a stopper (401) is arranged on the positioning support (4) to abut against the rack (1), so as to limit the position of the rack (1).

4. The PCB loading mechanism for a PCB rack according to claim 3, characterized in that: The side adjacent to the baffle (102) of the conveying line (2) is a positioning side (200), the other side opposite to the positioning side (200) is provided with a pushing mechanism to drive the rack (1) to translate until abutting against the positioning side (200), and the unlocking mechanism is arranged on the positioning side (200).

5. The PCB loading mechanism for a PCB rack according to claim 4, wherein: A cushion layer (206) is arranged on the inner wall of the positioning side (200).

6. The PCB loading mechanism for a PCB rack according to claim 4, wherein: The pushing mechanism comprises a first pushing cylinder (501) and a second pushing cylinder (502), at least one first pushing cylinder (501) is arranged on the other side opposite to the positioning side (200) of the conveying line (2), a second pushing cylinder (502) is arranged on the top of the positioning support (4) on the same side, the first pushing cylinder (501) is opposite to the bottom of the rack (1), the second pushing cylinder (502) is opposite to the top of the rack (1), and the first pushing cylinder (501) and the second pushing cylinder (502) synchronously extend to jointly drive the rack (1) to translate to the positioning side (200).

7. The PCB loading mechanism for a PCB rack according to claim 6, characterized in that: An opening is arranged on the other side opposite to the positioning side (200) of the conveying line (2) to make the cylinder end of the first pushing cylinder (501) extend, and the cylinder end of the second pushing cylinder (502) is fixedly connected with a pushing plate (503) matched with the top of the rack (1).

8. The PCB loading mechanism for a PCB rack according to claim 7, characterized in that: A detection sensor (5) is arranged on one side of the positioning support (4) to detect the rack (1).

9. The PCB loading mechanism according to any one of claims 1-8, characterized in that: The conveying line (2) is a belt conveying line, two sides of the conveying line (2) are respectively provided with a belt (201), and the ends of the two belts (201) are respectively connected with a transmission rod (202) in a transmission mode, and the transmission rod (202) is driven to rotate by a belt driving motor (203) to drive the two belts (201) to be synchronously conveyed.

10. The PCB loading mechanism according to any one of claims 1-8, characterized in that: The conveying line (2) is a roller conveying line, and the ends of a group of rollers are connected through a synchronous belt (204) and are driven to be synchronously conveyed by a roller driving motor.

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