CN219751133U - Circuit board feeder and circuit board copper deposition equipment - Google Patents

Abstract

The utility model discloses a circuit board feeder and circuit board copper deposition equipment, wherein the circuit board feeder comprises a frame, a feeding mechanism, a blocking piece and a limiting piece; the rack is provided with a feeding station and a discharging station which are distributed in sequence, and the discharging station is provided with a discharging mechanism for horizontally conveying the circuit board; the feeding mechanism is arranged at a feeding station and comprises a feeding disc and a first driving piece, the feeding disc is provided with a rolling channel for transporting a circuit board, the first driving piece is arranged on the frame and is used for driving the feeding disc to lift along the height direction of the frame; the blocking piece is arranged on the feeding disc and positioned at the downstream of the rolling channel, and is used for blocking the movement of the circuit board on the rolling channel and is arranged in a telescopic way along the height direction of the feeding disc; the limiting piece is arranged on the frame and is used for limiting the blocking piece; the technical scheme of the utility model can increase the stability of the feeding mechanism to the blocking of the circuit board.

Description

Circuit board feeder and circuit board copper deposition equipment

Technical Field

The utility model relates to the technical field of circuit board processing, in particular to a circuit board feeder and circuit board copper deposition equipment.

Background

In the surface treatment process of the circuit board, the circuit board is required to be fed to a corresponding station for processing through the circuit board feeding machine, the circuit board has a large speed when entering a feeding mechanism of the circuit board feeding machine, the circuit board possibly punches out of a feeding disc, at present, a flexible glue roller is arranged in the feeding mechanism, when the circuit board enters the feeding mechanism, the flexible glue roller can provide friction force to enable the circuit board to decelerate until stopping, however, the blocking stability of the circuit board is low in the mode, and the circuit board is easy to punch out of the feeding mechanism.

Disclosure of Invention

The utility model mainly aims to provide a circuit board feeder which aims to increase the stability of a feeding mechanism to the blocking of a circuit board.

In order to achieve the above object, the present utility model provides a feeder for a circuit board, comprising:

the machine frame is provided with a feeding station and a discharging station which are distributed in sequence, and the discharging station is provided with a discharging mechanism for horizontally conveying the circuit board;

the feeding mechanism is arranged at the feeding station and comprises a feeding disc and a first driving piece, the feeding disc is provided with a rolling channel for transporting a circuit board, the rolling channel extends along the length direction of the feeding disc, the first driving piece is arranged on the frame and is in driving connection with the feeding disc, and the first driving piece is used for driving the feeding disc to lift along the height direction of the frame;

the blocking piece is arranged on the feeding disc and is positioned at the downstream of the rolling channel, and is used for blocking the movement of the circuit board on the rolling channel and is arranged in a telescopic way along the height direction of the feeding disc; and

the limiting piece is arranged on the frame and used for limiting the blocking piece;

when the feeding disc descends below the limiting piece, the blocking piece is in an extending state, and the end part of the blocking piece is higher than the upper end of the feeding disc; in the ascending process of the feeding disc, the limiting piece limits the blocking piece, so that the blocking piece is in a contracted state, and the end part of the blocking piece is lower than the upper end of the feeding disc.

Optionally, the blocking piece comprises a blocking rod, a sliding sleeve and an elastic piece, the end part of the feeding disc is provided with a mounting plate, the mounting plate is positioned at the downstream of the rolling channel, the mounting plate is provided with a mounting hole, the mounting plate is sleeved outside the sliding sleeve through the mounting hole, the blocking rod can movably penetrate through the sliding sleeve, the elastic piece is sleeved on the blocking rod, two ends of the elastic piece are respectively connected with the blocking rod and the sliding sleeve, and the blocking piece has a trend of being maintained in an extending state under the action of the elastic piece;

in the ascending process of the feeding disc, the blocking rod can be abutted to the limiting piece, so that when the feeding disc continues to ascend, the sliding sleeve can be driven to move upwards through the mounting plate, and the blocking rod moves downwards relative to the feeding disc, so that the blocking piece is switched to the contracted state.

Optionally, two ends of the elastic piece are respectively abutted against the upper ends of the sliding sleeve and the blocking rod.

Optionally, the lower extreme of stopping the pole is equipped with the connecting piece, the connecting piece is more the outer periphery of stopping the pole outwards the evagination establishes, when the natural state of elastic component, the connecting piece with the lower extreme butt of slip cap in the in-process of rising of charging tray, stop the pole through the connecting piece butt in the locating part.

Optionally, the blocking piece is provided with a plurality of, and a plurality of blocking pieces are arranged at equal intervals along the length direction of the mounting plate, and the mounting plate is provided with one mounting hole corresponding to each blocking piece.

Optionally, the circuit board feeder still includes the bolster, the bolster install in the upper end of blocking the pole, and follow the length direction extension setting of blocking the pole, the bolster is elastic material, the outer peripheral face of bolster is used for supplying the avris butt of circuit board.

Optionally, the first driving piece includes rodless cylinder and movable frame, the movable frame install in the bottom of material loading dish, the rodless cylinder install in the frame, just the rodless cylinder drive connect in the movable frame, in order to drive the movable frame is followed the direction of height of frame goes up and down.

Optionally, the first driving part further comprises a sprocket, a chain and a counterweight part, the sprocket is rotatably mounted on the frame, the chain is sleeved on the sprocket, one end of the chain is connected with the movable frame, the other end of the chain is connected with the counterweight part, the counterweight part is located on one side of the movable frame, and the counterweight part can be driven to rise through the chain when the movable frame descends.

Optionally, the feed mechanism still includes a plurality of pivots and a plurality of gyro wheel, a plurality of the pivot rotationally install in the charging tray, and follow the direction of extension of roll passageway evenly spaced sets up, one the cover is equipped with a plurality of in the pivot the gyro wheel, the circuit board feeder still includes driving motor, driving motor drive connect in a plurality of the pivot to drive a plurality of the gyro wheel rotates.

The utility model also provides a circuit board copper deposition device which comprises the circuit board feeder.

According to the technical scheme, the first driving piece is arranged on the frame and used for driving the feeding disc to lift in the height direction of the frame, when the feeding disc is positioned at the bottom, the circuit board can enter the rolling channel from outside, the blocking piece is in an extending state when the feeding disc is positioned below the limiting piece, the circuit board can be limited by the blocking piece and prevented from being punched out of the feeding disc, when the feeding disc rises to a position exceeding the limiting piece, the blocking piece is in a contracting state, when the feeding disc rises to the discharging mechanism, the circuit board can move to the discharging mechanism through the rolling channel, and finally the circuit board is fed outwards through the discharging mechanism. The arrangement is that when the feeding disc is not lifted, the blocking piece on the feeding disc can be kept in an extending state continuously, when the circuit board enters the feeding disc from the outside and moves in the rolling channel, the blocking piece on the downstream of the rolling channel can block the circuit board to be punched out outwards, and therefore stability of the feeding mechanism for blocking the circuit board is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a circuit board feeder according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the feeding mechanism, the frame, the blocking member and the limiting member in FIG. 1;

fig. 3 is a schematic structural view of the circuit board feeder when the limiting member is in a contracted state;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic view of the mounting plate and the blocking member of fig. 2.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a circuit board feeder.

In one embodiment of the present utility model, as shown in fig. 1 to 5, the circuit board feeder includes a frame 10, a feeding mechanism 20, a blocking member 30 and a limiting member 40; the frame 10 is provided with a feeding station and a discharging station which are distributed in sequence, and the discharging station is provided with a discharging mechanism 50 for horizontally conveying the circuit board; the feeding mechanism 20 is arranged at a feeding station, the feeding mechanism 20 comprises a feeding disc 21 and a first driving piece 22, the feeding disc 21 is provided with a rolling channel 211 for transporting a circuit board, the rolling channel 211 is arranged along the length direction of the feeding disc 21 in an extending mode, the first driving piece 22 is arranged on the frame 10 and is connected with the feeding disc 21 in a driving mode, and the first driving piece 22 is used for driving the feeding disc 21 to lift along the height direction of the frame 10; the blocking piece 30 is installed on the feeding tray 21 and is positioned at the downstream of the rolling channel 211, the blocking piece 30 is used for blocking the movement of the circuit board on the rolling channel 211, and the blocking piece 30 is telescopically arranged along the height direction of the feeding tray 21; the limiting piece 40 is mounted on the frame 10, and the limiting piece 40 is used for limiting the blocking piece 30;

when the upper tray 21 descends below the limiting member 40, the blocking member 30 is in an extended state, and the end of the blocking member 30 is higher than the upper end of the upper tray 21; in the ascending process of the upper tray 21, the stopper 40 limits the stopper 30 so that the stopper 30 is in a contracted state, and the end of the stopper 30 is lower than the upper end of the upper tray 21.

In the technical scheme of the utility model, the first driving member 22 is mounted on the frame 10 and is used for driving the feeding tray 21 to lift in the height direction of the frame 10, when the feeding tray 21 is positioned at the bottom, the circuit board can enter the rolling channel 211 from the outside, the blocking member 30 is in an extending state when the feeding tray 21 is positioned below the limiting member 40, at the moment, the circuit board can be limited by the blocking member 30 and prevented from being punched out of the feeding tray 21, when the feeding tray 21 is lifted to a position exceeding the limiting member 40, the blocking member 30 is in a shrinking state, when the feeding tray 21 is lifted to the discharging mechanism 50, the circuit board can move to the discharging mechanism 50 through the rolling channel 211, and finally, the circuit board can be fed outwards through the discharging mechanism 50. By this arrangement, when the loading tray 21 is not lifted, it can be ensured that the blocking member 30 on the loading tray 21 is kept in an extended state continuously, and when a circuit board enters the loading tray 21 from the outside and moves in the rolling passage 211, the blocking member 30 downstream of the rolling passage 211 can block the circuit board from being punched out, thereby increasing the stability of the loading mechanism 20 blocking the circuit board.

In an embodiment, the blocking member 30 includes a blocking rod 31, a sliding sleeve 32 and an elastic member 33, the end portion of the feeding tray 21 is provided with a mounting plate 212, the mounting plate 212 is located at the downstream of the rolling channel 211, the mounting plate 212 is provided with a mounting hole, the mounting plate 212 is sleeved outside the sliding sleeve 32 through the mounting hole, the blocking rod 31 can movably penetrate through the sliding sleeve 32, the elastic member 33 is sleeved on the blocking rod 31, and two ends of the elastic member 33 are respectively connected to the blocking rod 31 and the sliding sleeve 32, and under the action of the elastic member 33, the blocking member 30 has a trend of being maintained in an extending state;

in the ascending process of the upper tray 21, the blocking rod 31 can be abutted against the limiting piece 40, so that when the upper tray 21 continues to ascend, the sliding sleeve 32 can be driven by the mounting plate 212 to move upwards, and the blocking rod 31 moves downwards relative to the upper tray 21, so that the blocking piece 30 is switched to a contracted state.

Specifically, in this embodiment, the sliding sleeve 32 includes two nuts and a hollow tube, the outer circumferential surface of the hollow tube is provided with threads, the hollow tube is inserted into the mounting hole, two ends of the hollow tube are respectively screwed with a nut, a certain distance exists between the two nuts, so that the sliding sleeve 32 can be movably mounted in the mounting hole up and down, the blocking rod 31 is movably inserted into the hollow tube, the elastic member 33 can provide elastic force for the sliding sleeve 32 and the blocking rod 31, so that the blocking rod 31 is kept in an extended state, the elastic member 33 can be contracted, when the feeding disc 21 has an upward driving force, the elastic force of the elastic member 33 can be overcome, and therefore, the sliding sleeve 32 is driven to move up compared with the blocking rod 31 through the mounting plate 212, so that the blocking member 30 is switched to a contracted state. So set up, when the feeding tray 21 is higher than the position of the stopper 40, the blocking lever 31 is contracted, the circuit board can be moved outward from the rolling channel 211, and when the feeding tray 21 is lower than the position of the stopper 40, the blocking lever 31 is extended, the circuit board can be limited, thereby preventing the limiting plate from being moved outward from the rolling channel 211.

In the related art, the lifting of the baffle is controlled by the electric control mechanism to prevent the circuit board from punching out of the feeding disc, but the lifting of the baffle in the mode leads to the complex overall structure of the circuit board feeding machine, so that the arrangement is realized, the expansion and contraction of the blocking piece 30 are not required to be driven through the intervention of electric control, the state of the blocking piece 30 is controlled only through the position change of the feeding disc 21, the structures of the blocking piece 30 and the limiting piece 40 are simple, the structure of the circuit board feeding machine can be simplified, and the cost can be saved.

In one embodiment, the two ends of the elastic member 33 respectively abut against the upper ends of the sliding sleeve 32 and the blocking rod 31.

Specifically, the upper end of the blocking rod 31 is provided with a boss protruding from the outer peripheral surface of the blocking rod 31, the elastic piece 33 is a spring, the upper end of the spring is abutted against the boss, the lower end of the spring is abutted against the end of the sliding sleeve 32, and therefore the elastic piece 33 is convenient to detach and maintain, and when the elastic piece 33 is damaged, the elastic piece 33 is convenient to detach and replace. In other embodiments, the upper end of the spring is inserted into the upper end of the blocking rod 31, and the lower end of the spring is inserted into the end of the sliding sleeve 32.

In an embodiment, the lower end of the blocking rod 31 is provided with a connecting piece 34, the connecting piece 34 is protruded outwards than the outer periphery of the blocking rod 31, when the elastic piece 33 is in a natural state, the connecting piece 34 is abutted with the lower end of the sliding sleeve 32, and in the rising process of the feeding disc 21, the blocking rod 31 is abutted with the limiting piece 40 through the connecting piece 34.

Specifically, the limiting piece 40 is in an L-shaped arrangement, one end of the limiting piece 40 is fixed on the frame 10, compared with the protruding portion of the frame 10, the limiting piece 40 is located above the connecting piece 34, the lower end of the limiting rod is detachably mounted on the connecting piece 34, when the feeding disc 21 drives the connecting piece 34 to move to the limiting piece 40, the feeding disc 21 continues to move upwards, the protruding end of the limiting piece 40 is tightly pressed on the portion, protruding outwards, of the outer periphery of the connecting piece 34, of the blocking rod 31, the limiting piece 40 can be tightly pressed on the connecting piece 34 from top to bottom, accordingly, the limiting effect is achieved on the blocking rod 31, the contact area between the limiting piece 40 and the connecting piece 34 is increased, stability of the limiting stop rod 31 is improved, in other embodiments, the limiting piece 40 can be tightly pressed on the upper end of the blocking rod 31 in the ascending process of the feeding disc 21, and the blocking rod 31 is prevented from moving upwards continuously.

In one embodiment, a plurality of blocking members 30 are provided, and the plurality of blocking members 30 are uniformly spaced along the length direction of the mounting plate 212, and the mounting plate 212 is provided with a mounting hole corresponding to each blocking member 30.

Specifically, a plurality of blocking pieces 30 are distributed at one end of the feeding disc 21, so that circuit boards with different widths can be blocked and limited on the feeding disc 21, and the circuit board feeding machine can feed circuit boards with different widths, namely universality of the circuit board feeding machine is improved.

Further, the lower ends of the blocking rods 31 are connected to the connecting piece 34, and when the feeding tray 21 ascends, the limiting piece 40 is pressed above the connecting piece 34, so that the blocking rods 31 are abutted against the connecting piece, the feeding tray 21 continues to ascend, and the ends of the blocking rods 31 are lower than the upper end of the feeding tray 21.

In an embodiment, the circuit board feeder further includes a buffer member 35, where the buffer member 35 is mounted at an upper end of the blocking rod 31 and extends along a length direction of the blocking rod 31, the buffer member 35 is made of an elastic material, and an outer peripheral surface of the buffer member 35 is used for abutting against an edge of the circuit board.

Specifically, the buffer member 35 is cylindrical, when the blocking rod 31 is in the extended state, the buffer member 35 is located on the upper side of the feeding tray 21, the side of the circuit board can be abutted against the outer peripheral surface of the buffer member 35, and the buffer member 35 is made of an elastic material, so that the circuit board and the blocking rod 31 can be prevented from being rigidly collided, and the circuit board is protected.

In an embodiment, the first driving member 22 includes a rodless cylinder 221 and a movable frame 222, the movable frame 222 is mounted at the bottom of the feeding tray 21, the rodless cylinder 221 is mounted on the frame 10, and the rodless cylinder 221 is drivingly connected to the movable frame 222 to drive the movable frame 222 to lift along the height direction of the frame 10.

Specifically, the rodless cylinder 221 has the advantages of high load, self-guiding, variable and diverse stroke, long service life, light weight, and the like, and the space can be saved by installing the rodless cylinder 221 on the frame 10, so that the arrangement can ensure the stable operation of the loading tray 21.

In an embodiment, the first driving member 22 further includes a sprocket 223, a chain 224 and a weight member 225, the sprocket 223 is rotatably mounted on the frame 10, the chain 224 is sleeved on the sprocket 223, one end of the chain 224 is connected to the movable frame 222, the other end is connected to the weight member 225, the weight member 225 is located at one side of the movable frame 222, and the weight member 225 can be driven to rise by the chain 224 when the movable frame 222 descends.

Specifically, when the upper tray 21 descends from the high position to the bottom, the weight 225 is lifted to a high position by pulling the chain 224, and at this time, when the upper tray 21 is ready to ascend, the weight 225 descends due to gravity, and when the weight 225 descends, the potential energy of the weight 225 is converted into kinetic energy by pulling the chain 224, thereby providing kinetic energy to the upper tray 21 and assisting in ascending thereof, so that the output power of the cylinder can be reduced.

In the prior art, through being equipped with flexible glue gyro wheel 24 on last charging tray 21, when the circuit board got into material loading tray 21, flexible glue gyro wheel 24 can provide frictional force and make the circuit board slow down, and the rethread automatically controlled lift baffle stops the circuit board to dash out material loading tray 21, but flexible glue gyro wheel 24 produces wearing and tearing easily in long-time use, leads to flexible glue to glue the surface to the circuit board to influence the quality of circuit board.

In an embodiment, the feeding mechanism 20 further includes a plurality of rotating shafts 23 and a plurality of rollers 24, the plurality of rotating shafts 23 are rotatably mounted on the feeding tray 21 and are uniformly spaced along the extending direction of the rolling channel 211, the plurality of rollers 24 are sleeved on one rotating shaft 23, and the circuit board feeder further includes a driving motor, and the driving motor is in driving connection with the plurality of rotating shafts 23 to drive the plurality of rollers 24 to rotate.

Specifically, the end of the plurality of rotating shafts 23 is provided with bevel gears, one end of the plurality of rotating shafts 23 is provided with a driving shaft, the driving shaft is provided with a plurality of bevel gears, the bevel gears on the driving shaft are meshed with the bevel gears on the plurality of rotating shafts 23 in a one-to-one correspondence manner, the frame 10 is provided with a driving motor for driving and connecting the driving shafts, the driving motor drives the driving shafts to rotate, the driving shafts drive the plurality of rotating shafts 23 to rotate through the meshing of the bevel gears, so that the rollers 24 rotate on the rolling channel 211 to convey the circuit board outwards, and the rollers 24 in the embodiment are hard rubber rollers 24 and cannot be stuck on the circuit board after being worn.

The utility model also provides a circuit board copper deposition device which comprises a circuit board feeder, and the specific structure of the circuit board feeder refers to the embodiment, and because the circuit board copper deposition device adopts all the technical schemes of all the embodiments, the circuit board copper deposition device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. The circuit board copper deposition equipment further comprises a surface treatment assembly and a circuit board blanking machine, the surface treatment assembly is fed through the circuit board feeding machine, copper deposition treatment is carried out on the surface treatment assembly by the circuit board, and the circuit board is blanked by the circuit board blanking machine after the copper deposition treatment is finished.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A circuit board feeder comprising:

the machine frame is provided with a feeding station and a discharging station which are distributed in sequence, and the discharging station is provided with a discharging mechanism for horizontally conveying the circuit board;

the feeding mechanism is arranged at the feeding station and comprises a feeding disc and a first driving piece, the feeding disc is provided with a rolling channel for transporting a circuit board, the rolling channel extends along the length direction of the feeding disc, the first driving piece is arranged on the frame and is in driving connection with the feeding disc, and the first driving piece is used for driving the feeding disc to lift along the height direction of the frame;

the blocking piece is arranged on the feeding disc and is positioned at the downstream of the rolling channel, and is used for blocking the movement of the circuit board on the rolling channel and is arranged in a telescopic way along the height direction of the feeding disc; and

the limiting piece is arranged on the frame and used for limiting the blocking piece;

when the feeding disc descends below the limiting piece, the blocking piece is in an extending state, and the end part of the blocking piece is higher than the upper end of the feeding disc; in the ascending process of the feeding disc, the limiting piece limits the blocking piece, so that the blocking piece is in a contracted state, and the end part of the blocking piece is lower than the upper end of the feeding disc.

2. The circuit board feeder of claim 1, wherein the blocking member comprises a blocking rod, a sliding sleeve and an elastic member, a mounting plate is arranged at the end part of the feeding disc, the mounting plate is positioned at the downstream of the rolling channel, the mounting plate is provided with a mounting hole, the mounting plate is sleeved outside the sliding sleeve through the mounting hole, the blocking rod is movably arranged in the sliding sleeve in a penetrating manner, the elastic member is sleeved on the blocking rod, two ends of the elastic member are respectively connected with the blocking rod and the sliding sleeve, and the blocking member has a trend of being maintained in the stretching state under the action of the elastic member;

in the ascending process of the feeding disc, the blocking rod can be abutted to the limiting piece, so that when the feeding disc continues to ascend, the sliding sleeve can be driven to move upwards through the mounting plate, and the blocking rod moves downwards relative to the feeding disc, so that the blocking piece is switched to the contracted state.

3. The circuit board feeder of claim 2, wherein both ends of the elastic member abut against upper ends of the sliding sleeve and the blocking lever, respectively.

4. The circuit board feeder of claim 3, wherein a connecting piece is arranged at the lower end of the blocking rod, the connecting piece is outwards protruded from the outer periphery of the blocking rod, the connecting piece is abutted with the lower end of the sliding sleeve in the natural state of the elastic piece, and the blocking rod is abutted with the limiting piece through the connecting piece in the lifting process of the feeding disc.

5. The circuit board feeder of claim 2, wherein a plurality of said blocking members are provided, and a plurality of said blocking members are provided at regular intervals along a length direction of said mounting plate, and said mounting plate is provided with one said mounting hole for each of said blocking members.

6. The circuit board feeder of claim 2, further comprising a buffer member mounted at an upper end of the blocking rod and extending along a length direction of the blocking rod, wherein the buffer member is made of an elastic material, and an outer peripheral surface of the buffer member is used for abutting against a side of the circuit board.

7. The circuit board feeder of claim 1, wherein the first driving member comprises a rodless cylinder and a movable frame, the movable frame is mounted at the bottom of the loading tray, the rodless cylinder is mounted on a frame, and the rodless cylinder is in driving connection with the movable frame to drive the movable frame to lift along the height direction of the frame.

8. The circuit board feeder of claim 7, wherein the first driving member further comprises a sprocket, a chain and a weight member, the sprocket is rotatably mounted on the frame, the chain is sleeved on the sprocket, one end of the chain is connected to the movable frame, the other end of the chain is connected to the weight member, the weight member is located at one side of the movable frame, and the weight member can be driven to rise by the chain when the movable frame descends.

9. The circuit board feeder of claim 6, wherein the loading mechanism further comprises a plurality of rotating shafts and a plurality of rollers, the rotating shafts are rotatably mounted on the loading tray and are uniformly spaced along the extending direction of the rolling channel, a plurality of rollers are sleeved on one rotating shaft, and the circuit board feeder further comprises a driving motor which is in driving connection with the rotating shafts so as to drive the rollers to rotate.

10. A circuit board copper deposition apparatus comprising the circuit board feeder according to any one of claims 1 to 9.