Material storing and discharging mechanism for PCB feeding machine

Abstract

The utility model relates to a material storing and discharging mechanism for a PCB (printed circuit board) feeding machine, which comprises a box frame, two opposite groove plates are arranged in the box frame, the inner sides of the groove plates are provided with placing groove structures, and the inner top and the inner bottom of the box frame are provided with sliding rails for sliding the groove plates; the placing groove structure comprises an elastic upper pressing part and a displacement lower bearing part; the elastic upper pressing part and the displacement lower force bearing part are oppositely arranged up and down, a placing groove is formed between the elastic upper pressing part and the displacement lower force bearing part, and an upper rolling piece and a lower rolling piece are arranged on the elastic upper pressing part and the displacement lower force bearing part respectively; after the displacement lower force bearing part properly moves downwards, the thickness of the placement groove in the height direction is increased, and the PCB is smoothly inserted into the placement groove; when the displacement lower force bearing part properly moves upwards, the upper portion of the PCB abuts against the elastic upper pressing part, and the PCB is clamped by the upper rolling piece and the lower rolling piece. The beneficial effects of the utility model are that the PCB is pushed stably, so that the PCB is prevented from warping, and the SMT machine is prevented from being damaged; the PCB can be well inserted into the placing groove; and the edge abrasion of the PCB is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board feeding, in particular to a storage and feeding mechanism for a PCB board feeder. Background Art

[0002] In a stacked board feeder, a box rack (or smt rack) is usually provided, and a plurality of PCB boards are inserted into the box rack; when feeding / loading is required, the box rack is moved to a certain position, and the inserted PCB boards are pushed by a pushing mechanism to the conveyor belt groove to achieve feeding / loading.

[0003] Generally, the box rack has opposite placement grooves on both side plates. The side plates have multiple pairs of placement grooves from top to bottom, and each pair of placement grooves is inserted with a PCB board for storage.

[0004] However, the thicknesses of different PCB boards are different, usually between 0.8 mm and 1.6 mm. Therefore, most box racks set the vertical thickness of the placement grooves above 1.6 mm to adapt to different PCB boards. Therefore, when the PCB board is inserted into the placement groove, it is not well limited in the vertical position.

[0005] When the PCB board is pushed from the placement groove to the conveyor belt groove, ideally, the PCB board is pushed to the middle horizontal plane in the vertical direction of the conveyor belt groove. But in actual situations, since the PCB board is not clamped in the vertical position in the placement groove, during the pushing process, the end of the PCB board does not completely fit the bottom of the placement groove and will show a certain degree of floating; therefore, it may occur that the end of the PCB board abuts against the end of the conveyor belt groove, resulting in the warping of the PCB board.

[0006] Although the probability of the above events occurring is small, once they occur, it is not easy for people to detect them easily. It is easy for the warped PCB board to enter the automated SMT production line, resulting in difficult or impossible soldering paste brushing, and it will also cause inaccurate positioning, leading to the inability of components to be mounted on the pads, and even damaging the automatic inserter, resulting in the damage of the SMT equipment.

[0007] Based on the actual situations encountered in the production process, our company has improved the traditional simple box rack, so that even if the circuit board is warped, it can enter the conveyor belt groove normally and well, avoiding equipment damage. Summary of the Utility Model

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a storage and feeding mechanism for a PCB board feeder.

[0009] It should be noted that after the PCB board is inserted into the placement groove of the box frame, if it is not clamped in the up and down positions, it may cause inaccurate feeding (the position of the PCB board will have a certain floating in the up and down positions), resulting in the PCB board being pressed against the end of the conveyor belt groove and warping. However, some simple clamping structures may cause the edges of the PCB board to be worn (which is also the reason why many manufacturers are reluctant to design clamping structures).

[0010] The purpose of the present utility model is achieved through the following technical solutions: A storage and feeding mechanism for a PCB board feeder, including a box frame. There are two opposite groove plates inside the box frame. The inner side of the groove plate has a placement groove structure. On the inner top and inner bottom of the box frame, there are slide rails for the groove plate to slide.

[0011] The placement groove structure includes an elastic upper pressing part and a displacement lower bearing part;

[0012] The elastic upper pressing part and the displacement lower bearing part are arranged opposite to each other up and down. A placement groove is formed between the two. They respectively have upper rolling parts and lower rolling parts;

[0013] After the displacement lower bearing part moves downward appropriately, the thickness of the placement groove in the height direction is increased, so that the PCB board can be smoothly inserted into the placement groove; when the displacement lower bearing part moves upward appropriately, the upper part of the PCB board is pressed against the elastic upper pressing part, and the PCB board is clamped by the upper rolling parts and the lower rolling parts.

[0014] In the above solution, by the downward movement of the displacement lower bearing part, a placement groove with a certain thickness is formed between the displacement lower bearing part and the elastic upper pressing part in the up and down direction. When the PCB board is inserted into the placement groove, it should not be worn due to the too small thickness of the placement groove; in addition, after being placed, the PCB board is mainly clamped by the elastic upper pressing part. In this way, when the PCB board is pushed from the placement groove to the conveyor belt groove, the PCB board will not float, and good insertion can be achieved, avoiding the PCB board from being warped by floating against the end of the conveyor belt groove; then it is pushed by the upper rolling parts and the lower rolling parts, and the PCB board will not be worn during the pushing process.

[0015] As a preferred technical solution of the present application, the elastic upper pressing part is installed on the upper installation part, and the upper installation part is fixedly arranged with the groove plate; the displacement lower bearing part is installed on the lower installation part. There is a slot hole on the groove plate, and the lower installation part passes through the slot hole and is connected to the driving mechanism; the driving mechanism can drive the lower installation part to move up and down in the slot hole, and further drive the displacement lower bearing part to move up and down;

[0016] This structure realizes the up-and-down movement of the displacement lower bearing part for the following reasons: Since a PCB board is also placed between the two slot plates, the driving mechanism cannot be arranged between the two slot plates; Since the PCB board needs to slide along the placement slot direction, the driving mechanism cannot be arranged on the wall of the box frame corresponding to the placement slot direction; Therefore, in this solution, the driving mechanism is arranged on the back of the slot plate, and the lower mounting part connected to the driving mechanism extends into the slot plate through the slot hole, and the lower rolling parts are installed on the front part of the slot plate.

[0017] As a preferred technical solution of the present application, the elastic upper pressing part includes a strip plate and upper rolling parts. A plurality of the upper rolling parts are installed on the strip plate to form an integral body, and then the integral body is elastically arranged on the upper mounting part. This is mainly for convenient installation.

[0018] Further, the upper mounting part and the strip plate are connected by a screw rod. A spring is sleeved on the screw rod and the spring abuts against the mounting part and the strip plate respectively; The screw rod is in threaded cooperation with the strip plate, and the screw rod and the upper mounting part are in vertically displaceable cooperation through vertical light holes. A preferred scheme for arranging the elastic upper pressing part on the mounting part.

[0019] Further, the upper rolling parts are upper rollers. A slot A is opened on the strip plate. A plurality of the upper rollers are placed in the slot A and then installed on the strip plate through a shaft rod; Internal threaded holes are opened on the inner side wall of the slot A, and horizontal light holes are opened on the outer side wall. The two ends of the shaft rod are small-diameter threaded ends; The shaft rod extends into the slot A through the horizontal light hole to cooperate with the corresponding upper roller, and then the small-diameter threaded end at the inner end of the shaft rod is in threaded cooperation with the internal threaded hole, and the small-diameter threaded end at the outer end is in threaded cooperation with the locking nut. The structure of the upper rolling part itself and the installation structure are designed.

[0020] As a preferred technical solution of the present application, the displacement lower bearing part includes a substrate and lower rolling parts; The lower mounting part is a lower horizontal plate. A plurality of horizontal plates are provided on the side surface of the substrate, and the plurality of horizontal plates pass through the slot holes; The back of the substrate is connected to the output end of the driving mechanism, and the base of the driving mechanism is arranged on the side plate of the box frame. The structure of the displacement lower bearing plate and the installation structure are designed.

[0021] Further, an adjusting seat is arranged on the side plate of the box frame. The base of the driving mechanism passes through the adjusting seat through an adjusting rod and the two are fixed by a locking screw; By adjusting the horizontal position of the adjusting rod, the left-right position of the displacement lower bearing part can be adjusted. The left-right position adjustment of the displacement lower bearing part is realized, and the adjustment of the slot plate is the same as the adjustment method of the traditional box frame.

[0022] Further, the driving mechanism is a linear telescopic motor. A lithium battery box and a corresponding control box are also arranged outside the box frame. This is to realize automatic adjustment, avoid manual adjustment, and be more accurate.

[0023] As a preferred technical solution of the present application, a limiting protrusion is provided on the lower mounting portion to limit the left and right positions of the PCB board.

[0024] For ease of understanding, the core design points of this solution are explained as follows: ① In general, PCB boards of various thicknesses can be smoothly pushed from the placement slot to the conveyor belt, thereby avoiding certain bounces (floating) and ensuring the smoothness of the pushing action, thereby avoiding the PCB board from warping at the end of the conveyor belt, thereby avoiding damage to the SMT machine; ② Specifically, by designing the placement slot to be elastically clamped, it is ensured that the PCB board is clamped and then smoothly loosened; ③ Due to the provision of upper and lower rolling parts, the edge of the PCB board will not be worn even when clamped and pushed; ④ In addition, the thickness of the placement slot in the height direction is adjustable, which is convenient for inserting PCB boards of different thicknesses into the placement slot, and the edge of the PCB board will not be worn.

[0025] The utility model has the following advantages:

[0026] (1) Push the PCB board smoothly to avoid PCB warping and damage to the SMT machine;

[0027] The design of the traditional box frame and placement slot is very simple. There are opposite slot plates on the left and right sides of the box frame. The inner side of the slot plate has placement slots, and the left and right edges of the PCB are inserted into the corresponding placement slots. However, since the thickness of the placement slot in the height direction is greater than the thickness of the PCB (if the thickness of the placement slot and the PCB are the same, the edge of the PCB will be seriously worn), this will cause the PCB to jump (float) when it is pushed from the placement slot to the conveyor belt slot. It is possible that the front end of the PCB board will hit the end of the conveyor belt slot, causing the PCB board to warp. Once the warped PCB board enters the SMT machine, it may cause damage to the SMT machine; (Although the probability of warping is small, the loss will be serious once it occurs)

[0028] In this solution, the elastic upper pressing part presses the PCB board to prevent the PCB board from jumping during the pushing process, thereby preventing the front end of the PCB board from abutting against the end of the conveyor belt groove, thereby preventing the PCB board from warping and damaging the SMT machine;

[0029] (2) The thickness of the placement slot in the vertical direction can be adjusted to ensure that the PCB board can be well inserted into the placement slot;

[0030] When designing the elastic clamping method, the relatively easy-to-think-of solutions are that the upper part of the placement groove is an elastic structure and the lower part is also an elastic structure, or the upper part of the placement groove is an elastic structure and the lower part is a fixed structure, or the upper part of the placement groove is a fixed structure and the lower part is an elastic structure. However, if these three designs are to ensure good clamping of the PCB board, the thickness of the placement groove formed between the upper and lower parts in the up and down direction is not thick enough; the resulting consequence is that when a thicker PCB board is inserted, it may abut against the corresponding upper rolling member / lower rolling member. Although it can finally be inserted, there may be a situation where the PCB board is bent by the abutment.

[0031] Therefore, this solution specifically designs a displacement lower bearing part. By the downward movement of the displacement lower bearing part, it is ensured that when the PCB board is inserted, the placement groove has sufficient thickness in the up and down direction to prevent the PCB board from abutting against the corresponding upper rolling member / lower rolling member.

[0032] However, limited by the structure of the box frame, it is very difficult to find an installation position for the driving mechanism corresponding to the displacement lower bearing part; specifically, since a PCB board is also placed between the two slot plates, the driving mechanism cannot be set between the two slot plates; since the PCB board needs to slide along the direction of the placement groove, the driving mechanism cannot be set on the wall of the box frame corresponding to the placement groove direction; therefore, this solution sets the driving mechanism on the back of the slot plate, and allows the lower installation part connected to the driving mechanism to extend into the slot plate through the slot hole, and installs the lower rolling on the front part of the slot plate.

[0033] (3) By setting the upper rolling member and the lower rolling member, the sliding friction when the traditional PCB board is pushed in is converted into rolling friction, thereby reducing the edge wear of the PCB board. Description of the Drawings

[0034] Figure 1 is a structural schematic diagram of the present utility model;

[0035] Figure 2 is a structural schematic diagram of the setting between the slot plate and the elastic upper pressing part and the displacement lower bearing part;

[0036] Figure 3 is a structural schematic diagram of the elastic upper pressing part and the displacement lower bearing part clamping the PCB board;

[0037] Figure 4 is a structural schematic diagram of the elastic upper pressing part and the displacement lower bearing part;

[0038] Figure 5 is a structural schematic diagram of the elastic upper pressing part arranged on the upper installation part;

[0039] In the figure: 1 - box frame, 11 - slide rail, 12 - adjusting seat, 13 - locking screw;

[0040] 2 - Slot plate, 21 - Slot hole;

[0041] 3 - Elastic upper pressing part, 31 - Upper rolling part, 32 - Strip board, 33 - Shaft rod, 34 - Locking nut;

[0042] 4 - Displacement lower bearing part, 41 - Lower rolling part, 42 - Substrate;

[0043] 5 - Upper mounting part, 51 - Screw rod, 52 - Spring, 6 - Lower mounting part, 7 - Driving mechanism, 71 - Adjusting rod. Detailed implementation mode

[0044] The following further describes the present utility model in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0045] It should be noted that the orientation or positional relationship indicated by "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0046] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0047] As Figures 1 to 3 shown, a storage and feeding mechanism for a PCB board feeder proposed in this embodiment includes a box frame 1. Two opposite slot plates 2 are provided inside the box frame 1. The inner side of the slot plate 2 has a placement groove structure. Slide rails 11 for the slot plate 2 to slide are provided at the inner top and inner bottom of the box frame 1;

[0048] The placement groove structure includes an elastic upper pressing part 3 and a displacement lower bearing part 4; and the elastic upper pressing part 3 and the displacement lower bearing part 4 are arranged opposite to each other up and down. A placement groove is formed between the two, and they respectively have an upper rolling part 31 and a lower rolling part 41;

[0049] During operation, after the displacement lower bearing part 4 moves downward appropriately, the thickness of the placement groove in the height direction is increased, so that the PCB board can be smoothly inserted into the placement groove; when the displacement lower bearing part 4 moves upward appropriately, the upper part of the PCB board abuts against the elastic upper pressing part 3, and the PCB board is clamped by the upper rolling part 31 and the lower rolling part 41, and can run smoothly when the PCB board is pushed from the placement groove to the conveyor belt groove;

[0050] The function generated is that due to the downward movement of the displacement lower bearing part 4, a placement groove with a certain thickness is formed in the up and down direction between the displacement lower bearing part 4 and the elastic upper pressing part 3. When the PCB board is inserted into the placement groove, it should not be worn due to the too small thickness of the placement groove. In addition, after being placed, the PCB board is mainly clamped by the elastic upper pressing part 3. In this way, when the PCB board is pushed from the placement groove to the conveyor belt groove, the PCB board will not float, and good insertion can be achieved, avoiding the warping of the PCB board due to floating against the end of the conveyor belt groove. Then, it is pushed by the upper rolling part 31 and the lower rolling part 41, and the PCB board will not be worn during the pushing process.

[0051] Refer to Figure 2 and Figure 3 The installation structures of the elastic upper pressing part 3 and the displacement lower bearing part 4 are designed. Specifically, the elastic upper pressing part 3 is installed on the upper installation part 5, and the upper installation part 5 is fixedly arranged with the groove plate 2. The displacement lower bearing part 4 is installed on the lower installation part 6. There is a slot hole 21 on the groove plate 2, and the lower installation part 6 passes through the slot hole 21 and is connected to the driving mechanism 7.

[0052] During operation, the driving mechanism 7 can drive the lower installation part 6 to move downward (the lower installation part 6 can move up and down in the slot hole 21), and the lower installation part 6 drives the displacement lower bearing part 4 to move downward, so that there is enough space in the up and down direction for the placement groove. Then, the PCB is inserted into the placement groove, and the end of the PCB board will not abut against the upper rolling part 31 or the lower rolling part 41, and the PCB board will not be bent during insertion. After the insertion is completed, the driving mechanism 7 drives the displacement lower bearing part 4 to move upward, so that the upper surface of the PCB board abuts against the elastic upper pressing part 3, and thus the PCB board is stably clamped.

[0053] Refer to Figure 4 The elastic upper pressing part 3 is designed. It includes a strip plate 32 and an upper rolling part 31. A groove A is opened on the strip plate 32, and the upper rolling part 31 is an upper roller. After placing a plurality of upper rollers in the groove A, they are installed on the strip plate 32 through a shaft rod 33 to form an integral body, and then this integral body is elastically arranged on the upper installation part 5.

[0054] Specifically, internal threaded holes are opened on the inner side wall of the groove A, and horizontal light holes are opened on the outer side wall. The two ends of the shaft rod 33 are small-diameter threaded ends. The shaft rod 33 extends into the groove A through the horizontal light hole and cooperates with the corresponding upper roller. Then, the small-diameter threaded end at the inner end of the shaft rod 33 cooperates with the internal threaded hole, and the small-diameter threaded end at the outer end cooperates with the locking nut 34.

[0055] Refer to Figure 4 and Figure 5, the upper mounting part 5 is designed; the mounting part 5 is a cross bar on the slot plate 2; the mounting part 5 and the strip plate 32 are connected by a screw rod 51, a spring 52 is sleeved on the screw rod 51 and the spring 52 abuts against the mounting part 5 and the strip plate 32 respectively; the screw rod 51 is in threaded fit with the strip plate 32, and the screw rod 51 and the upper mounting part 5 are displaceably fitted up and down through a vertical light hole.

[0056] Refer to Figure 4 , the displacement lower bearing part 4 is designed, which includes a base plate 42 and a lower rolling member 41; the installation method of the lower rolling member 41 on the base plate 42 is the same as the installation method of the upper rolling member 31 on the strip plate 32;

[0057] In addition, the lower mounting part 6 is also designed. The lower mounting part 6 is a lower horizontal plate, and there are a plurality of horizontal plates on the side surface of the base plate 42, and the plurality of horizontal plates pass through the slot holes 21; the back of the base plate 42 is connected to the output end of the driving mechanism 7, and the base of the driving mechanism 7 is arranged on the side plate of the box frame 1; and, a limiting protrusion 62 is arranged on the lower mounting part 6 to limit the left and right positions of the PCB board.

[0058] Refer to Figure 1 and Figure 2 , the left and right position adjustment of the displacement lower bearing part 4 is also designed;

[0059] Specifically, an adjusting seat 12 is arranged on the side plate of the box frame 1, the base of the driving mechanism 7 passes through the adjusting seat 12 through an adjusting rod 71 and the two are fixed by a locking screw 13; by adjusting the horizontal position of the adjusting rod 71, the left and right positions of the displacement lower bearing part 4 can be adjusted.

[0060] Preferably, the driving mechanism 7 is a linear telescopic motor, and a lithium battery box and a corresponding control box are also arranged outside the box frame 1. It is to achieve automatic adjustment, avoid manual adjustment, and be more accurate.

[0061] When the utility model works:

[0062] S1. Adjust the width of the placement slot between the two opposite slot plates 2 to adapt to PCB boards of different widths;

[0063] First, adjust the width between the two slot plates 2, and the adjustment method is the same as that of an ordinary box frame; then loosen the locking screw 13, push the driving mechanism 7, the base plate 42, the lower mounting part 6, and the displacement lower bearing part 4 to move left and right together through the adjusting rod 71, and then tighten the screw 13;

[0064] S2. Insert the PCB board;

[0065] Control the driving mechanism 7 to work through the control box. The driving mechanism 7 drives the displacement lower bearing part 4 to move downward. Thus, there is enough spacing in the up and down direction of the placement groove. Insert the PCB board into the placement groove. Since the spacing in the up and down direction of the placement groove is sufficient, the PCB board will not abut against the upper rolling member 31 / lower rolling member 41, and the PCB board will not warp during insertion.

[0066] Then the driving mechanism 7 drives the displacement lower bearing part 4 to move upward, and the upper surface of the PCB board abuts against the elastic upper pressing part 3, thus realizing the clamping of the PCB board.

[0067] When the PCB board in the subsequent box frame 1 is pushed to the conveyor belt groove by the corresponding equipment (prior art), since the PCB board is clamped well in the up and down positions, the PCB board will not jump in the up and down positions, and the PCB board will not abut against the end of the conveyor belt groove and warp, thereby avoiding damage to the SMT machine (the warped PCB board will cause damage to the SMT).

[0068] The above embodiments only express relatively preferred implementation manners, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. A storage and feeding mechanism for a PCB board feeder, comprising a box frame (1). Two opposite groove plates (2) are arranged inside the box frame (1). The inner side of the groove plate (2) has a placement groove structure. Slide rails (11) for the groove plates (2) to slide are provided at the inner top and inner bottom of the box frame (1). It is characterized in that: The placement groove structure includes an elastic upper pressing part (3) and a displacement lower bearing part (4); The elastic upper pressing part (3) and the displacement lower bearing part (4) are arranged opposite to each other up and down. A placement groove is formed between the two. They respectively have an upper rolling part (31) and a lower rolling part (41); After the displacement lower bearing part (4) moves downward appropriately, the thickness of the placement groove in the height direction is increased, so that the PCB board can be smoothly inserted into the placement groove; when the displacement lower bearing part (4) moves upward appropriately, the upper part of the PCB board abuts against the elastic upper pressing part (3), and the PCB board is clamped by the upper rolling part (31) and the lower rolling part (41).

2. The material storage and feeding mechanism for a PCB board feeder according to claim 1, characterized in that: The elastic upper pressing part (3) is installed on an upper installation part (5), and the upper installation part (5) is fixedly arranged with the groove plate (2); The displacement lower bearing part (4) is installed on a lower installation part (6). A slot hole (21) is provided on the groove plate (2). After the lower installation part (6) passes through the slot hole (21), it is connected to a driving mechanism (7); the driving mechanism (7) can drive the lower installation part (6) to move up and down in the slot hole (21), and then drive the displacement lower bearing part (4) to move up and down.

3. The material storage and feeding mechanism for a PCB board feeder according to claim 1 or 2, characterized in that: The elastic upper pressing part (3) includes a strip plate (32) and an upper rolling part (31). A plurality of the upper rolling parts (31) are installed on the strip plate (32) to form an integral body, and then this integral body is elastically arranged on the upper installation part (5).

4. The storage and feeding mechanism for a PCB board feeder according to claim 3, wherein: The upper installation part (5) and the strip plate (32) are connected by a screw rod (51). A spring (52) is sleeved on the screw rod (51), and the spring (52) abuts against the installation part (5) and the strip plate (32) respectively; The screw rod (51) is in threaded cooperation with the strip plate (32), and the screw rod (51) is in vertically displaceable cooperation with the upper installation part (5) through a vertical light hole.

5. The storage and feeding mechanism for a PCB board feeder according to claim 3, characterized in that: The upper rolling part (31) is an upper roller. A slot A is provided on the strip plate (32). A plurality of the upper rollers are placed in the slot A and then installed on the strip plate (32) through a shaft rod (33); Internal threaded holes are provided on the inner side wall of the slot A, and horizontal light holes are provided on the outer side wall. Both ends of the shaft rod (33) are small-diameter threaded ends; the shaft rod (33) extends into the slot A through the horizontal light hole to cooperate with the corresponding upper roller, and then the small-diameter threaded end at the inner end of the shaft rod (33) is in threaded cooperation with the internal threaded hole, and the small-diameter threaded end at the outer end is in threaded cooperation with a locking nut (34).

6. The storage and feeding mechanism for a PCB board feeder according to claim 2, characterized in that: The displacement lower bearing part (4) includes a base plate (42) and a lower rolling part (41); The lower installation part (6) is a lower horizontal plate. A plurality of horizontal plates are provided on the side surface of the base plate (42). A plurality of the horizontal plates pass through the slot hole (21); The back of the base plate (42) is connected to the output end of the driving mechanism (7). The base of the driving mechanism (7) is arranged on the side plate of the box frame (1).

7. The material storage and feeding mechanism for a PCB board feeder according to claim 6, characterized in that: An adjusting seat (12) is provided on the side plate of the box frame (1). The base of the driving mechanism (7) passes through the adjusting seat (12) via an adjusting rod (71), and the two are fixed by a locking screw (13). By adjusting the horizontal position of the adjusting rod (71), the left and right positions of the displacement lower bearing part (4) can be adjusted.

8. The storage and feeding mechanism for a PCB board feeder according to claim 6, characterized in that: The driving mechanism (7) is a linear telescopic motor, and a lithium battery box and a corresponding control box are further provided outside the box frame (1).

9. The storage and feeding mechanism for a PCB board feeder according to claim 2, characterized in that: A limiting protrusion (62) is provided on the lower mounting part (6) to limit the left and right positions of the PCB board.

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