CN220543759U - Equidistant carrying and wire cutting mechanism for foot winding magnetic rings - Google Patents

Abstract

The utility model discloses and provides a high-efficiency magnetic ring winding foot and wire cutting integrated machine. The automatic lifting and cutting machine comprises a machine base body (1), wherein an equidistant lifting and translation carrying device, a multi-station synchronous pressing and cutting device and a variable-pitch blanking device are sequentially arranged on the machine base body (1) in an adaptive mode, and the carrying end of the equidistant lifting and translation carrying device and the carrying end of the variable-pitch blanking device are respectively corresponding to the adaptive movement of the multi-station synchronous pressing and cutting device. The utility model is suitable for the field of winding the magnetic ring tangents of the foot inductor.

Description

Equidistant carrying and wire cutting mechanism for foot winding magnetic rings

Technical Field

The utility model relates to an equidistant carrying and wire cutting mechanism for a foot winding magnetic ring.

Background

In the production manufacturing process of the foot winding magnetic ring inductor, after the magnetic ring body finishes winding and the bottom plate is assembled, the wire body after the magnetic ring body finishes winding is required to wind the wire feet of the bottom plate, and after winding, the wire tails with redundant lengths are required to be cut. The traditional tangent line aiming at the winding magnetic ring inductor needs to adopt manual feeding and manual discharging, and only one product can be cut at a time when the tangent line is cut, so that the efficiency is extremely low.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the equidistant carrying and cutting mechanism of the foot winding magnetic ring, which improves the efficiency of carrying, cutting feet and blanking after the foot winding of the magnetic ring body.

The utility model comprises a machine base body, wherein the machine base body is sequentially provided with an equidistant lifting translation carrying device, a multi-station synchronous pressing and cutting device and a variable-pitch blanking device in an adaptive mode, and the carrying end of the equidistant lifting translation carrying device and the carrying end of the variable-pitch blanking device are respectively corresponding to the adaptive movement of the multi-station synchronous pressing and cutting device.

The equidistant lifting translation handling device comprises a handling support frame, a lifting translation track plate, a crank, a lifting driven handle, a handling translation track, a handling translation part, a handling pneumatic magnetic ring clamping jaw and a handling machine cover, wherein the handling support frame is arranged on the machine base body, the handling reciprocating rotation motor and the lifting translation track plate are respectively and adaptively arranged on the handling support frame, the handling reciprocating rotation motor is arranged on the back of the lifting translation track plate, a lifting translation track through groove is arranged on the lifting translation track plate in an adapting manner, the crank is adapted to move and arranged on the front end face of the lifting translation track plate, the front end of the crank is fixedly connected with the output end of the handling reciprocating rotation motor, the back of the tail end of the crank is provided with a guide pin, the guide pin is adapted to move and arranged in the lifting translation track through groove, the lifting driven handle is movably and articulated on the front end face of the tail end of the crank, the handling translation track is adapted to be transversely arranged on the handling support frame and is adapted to the lower side of the lifting translation track plate, the lifting translation track is adapted to move and the lifting translation part is arranged on the lifting translation track cover, and the lifting translation part is arranged on the lifting translation clamping jaw.

The multi-station synchronous pressing and cutting device comprises a pressing and cutting base body, a cutting and transferring motor, a cutting and transferring jig, a pneumatic wire clamping fixture, a portal frame, a middle beam frame plate, a pressing and cutting cylinder and a pressing and cutting plate, wherein the pressing and cutting base body is arranged on the base body and is adapted to one side of the carrying support frame, the cutting and transferring motor is adapted to be arranged on the pressing and cutting base body, the cutting and transferring jig is adapted to be movably arranged on the pressing and cutting base body through a cutting and transferring rail and is in transmission connection with the output end of the cutting and transferring motor, a plurality of pneumatic wire clamping fixtures are arranged on the pressing and cutting base body in parallel to form a group of wire clamping fixture groups, two groups of wire clamping fixture groups are respectively adapted to be arranged on two sides of the cutting and transferring rail, the two portal frames are vertically arranged on the pressing tangent line base body respectively, the two portal frames are correspondingly and crossly arranged above the tangent line moving rail, the two clip clamp groups are suitably arranged between the two portal frames, the middle beam frame plate is fixedly and vertically arranged between the two portal frames and is suitably arranged above the tangent line moving rail, the pressing tangent line cylinder is fixedly and vertically arranged on the middle beam frame plate, the pressing tangent line plate is vertically and movably arranged on the front end surface of the middle beam frame plate through the pressing rail and is fixedly connected with the output end of the pressing tangent line cylinder, the bottom of the pressing tangent line plate is provided with a pressing tangent line block, the long side of the bottom of the pressing tangent line block is provided with a tangent line position, the tangent line moving jig is uniformly provided with a plurality of product placing positions, the pressing tangent plate drives the pressing tangent block to be adapted to vertically move and arranged above a plurality of product placing positions.

The multi-station synchronous pressing and cutting device further comprises a wire leftover placing disc, the wire leftover placing disc is arranged on the machine base body and is adapted to the lower portion of the pressing and cutting base body, a wire leftover passing groove matched with the wire leftover placing disc is formed in the pressing and cutting base body, and the wire leftover placing disc is adapted to the lower portion of the wire leftover passing groove.

The variable-pitch blanking device comprises a blanking supporting table, a blanking translation track beam, a blanking moving motor, a blanking translation moving part and a lifting variable-pitch material taking assembly, wherein the blanking supporting table is arranged on the machine base body and is adapted to one side of the blanking tangent base body, the blanking translation track beam is adapted to be transversely arranged on the blanking supporting table, the blanking moving motor is arranged on the blanking supporting table, the blanking translation moving part is arranged on the blanking translation track beam through a blanking translation track adaptation activity and is in transmission connection with the output end of the blanking moving motor, and the lifting variable-pitch material taking assembly is adapted to be arranged on the blanking translation moving part and is adapted to be arranged above the product placement position.

The lifting and displacement material taking assembly comprises a first section lifting travel cylinder, a first section lifting travel plate, a second section lifting travel cylinder, a displacement track plate, a second section lifting travel plate, a displacement translation track, a follow-up translation piece and a pneumatic material taking clamping jaw, wherein the first section lifting travel cylinder is fixedly and vertically arranged on a blanking translation moving piece, the first section lifting travel plate is vertically and movably arranged on the front end surface of the blanking translation moving piece through a first section lifting travel track adaptation, the second section lifting travel cylinder is fixedly and vertically arranged on the first section lifting travel plate, the displacement track plate is fixedly connected with the outer wall of the second section lifting travel cylinder through a fixed connection plate, the second section lifting travel plate is movably arranged on the back surface of the displacement track plate and is connected with the output end of the second section lifting travel cylinder, a plurality of displacement track adaptations are arranged on the front end surface of the blanking translation travel plate and are connected with the output end of the first section lifting travel cylinder, a plurality of profile track adaptations are arranged on the second section lifting travel plate and are respectively arranged on the plurality of profile track adaptations and are arranged on the upper end of the profile track translation piece, and the profile track is respectively arranged on the profile track.

The beneficial effects are that: in the utility model, the equidistant lifting translation carrying device is adopted to finish equidistant feeding of the wound magnetic ring products, thereby ensuring the consistency of lifting and translation distances in the carrying process and avoiding feeding errors caused by distance errors and influencing the working efficiency; adopting a multi-station synchronous pressing and cutting device to cut a plurality of magnetic ring products wound with feet simultaneously, and improving the cutting efficiency; the pitch-variable blanking device is used for pitch-variable blanking of the winding leg magnetic ring products with the tangent lines, so that interference among the winding leg magnetic ring products in the blanking process is avoided, the interval between blanking and charging is ensured to be consistent with the interval between the tangent lines, and standardized production is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of the middle section equidistant lifting translation carrying mechanism in the utility model;

FIG. 3 is a schematic view of the overall structure of the middle section equidistant lifting translation conveying mechanism of the utility model with the middle section conveyor cover removed;

FIG. 4 is a schematic diagram of the overall structure of a multi-station synchronous pressing and cutting mechanism in the utility model;

FIG. 5 is a schematic side view of a multi-station synchronous pressing and cutting mechanism in the utility model;

FIG. 6 is a schematic side view of a multi-station synchronous pressing and cutting mechanism according to the present utility model

FIG. 7 is an enlarged schematic view at A in FIG. 6;

FIG. 8 is a schematic diagram of the whole structure of the variable-pitch blanking mechanism in the utility model;

fig. 9 is a schematic diagram of the overall structure of the lifting and pitch-changing material taking assembly of the pitch-changing blanking mechanism.

Detailed Description

As shown in fig. 1 to 9, the utility model comprises a machine base body 1, wherein the machine base body 1 is sequentially provided with an equidistant lifting translation carrying device, a multi-station synchronous pressing and cutting device and a variable-pitch blanking device in an adapting mode, and the carrying end of the equidistant lifting translation carrying device and the carrying end of the variable-pitch blanking device are respectively corresponding to the adapting activities of the multi-station synchronous pressing and cutting device.

Equidistant lifting translation handling device includes transport support frame 41, the reciprocal rotation motor 42 of transport, lifting translation track board 43, crank 44, lift driven handle 45, transport translation track 46, transport translation 47, transport pneumatic magnetic ring clamping jaw 48 and conveyer lid 49, transport support frame 41 sets up on frame body 1, the reciprocal rotation motor 42 of transport and lifting translation track board 43 adaptation respectively set up on transport support frame 41, the reciprocal rotation motor 42 of transport is arranged in the back of lifting translation track board 43, the adaptation is provided with lifting translation track logical groove 431 on the lifting translation track board 43, the front end of crank 44 adaptation activity is arranged on the preceding terminal surface of lifting translation track board 43, the front end of crank 44 and the output fixed connection of the reciprocal rotation motor 42, the back of the end of crank 44 is provided with the guide pin, guide pin adaptation activity is arranged in lifting translation track logical groove 431, the front end adaptation activity of lift driven handle 45 articulates on the terminal front end of crank 44, transport translation track 46 adaptation is transversely arranged on transport support frame 41 and is configured in lifting translation track board 43's below, transport translation piece 47 adaptation activity is arranged on lifting translation track board 43, lifting translation piece 47 adaptation activity is arranged on lifting clamp ring 451, the front side of lift driven handle 45 is arranged on the back of lifting clamp 45, the front of lift driven handle 45 is arranged on the front of lift driven handle 45, the front end of lift driven handle 45 is equipped with pneumatic adaptation, the front end of lifting translation clamping jaw 45.

The multi-station synchronous pressing and cutting device comprises a pressing and cutting base body 51, a cutting and transferring motor 52, a cutting and transferring jig 53, pneumatic wire clamping fixtures 54, a portal 55, a middle beam frame plate 56, pressing and cutting cylinders 57 and pressing and cutting plates 58, wherein the pressing and cutting base body 51 is arranged on the base body 1 and is adapted to be arranged on one side of a carrying support frame 41, the cutting and transferring motor 52 is adapted to be arranged on the pressing and cutting base body 51, the cutting and transferring jig 53 is adapted to be movably arranged on the pressing and cutting base body 51 through a cutting and transferring rail 531 and is in transmission connection with the output end of the cutting and transferring motor 52, four pneumatic wire clamping fixtures 54 are arranged on the pressing and cutting base body 51 in parallel and form a group of wire clamping fixture groups, the two groups are respectively adapted to be arranged on two sides of the cutting and transferring rail 531, the two portal 55 are respectively and correspondingly arranged on the pressing and cutting base body 51, the two portal 55 are correspondingly arranged on the upper side of the cutting and transferring rail 531, the two groups of the portal 55 are adapted to be arranged between the two portal 55, the middle beam frame plate 56 is adapted to be fixedly arranged on the vertical rail and is adapted to be movably arranged on the pressing and cutting wire clamping plates 55, the middle beam frame plate 56 is adapted to be fixedly arranged on the two portal 55 and is fixedly arranged on the upper side of the cutting and cutting wire clamping plates 58, the vertical rail is fixedly arranged on the cutting and cutting wire clamping plates 58 is arranged on the bottom of the product in front of the vertical rail 532, the vertical rail is arranged on the vertical rail 58, the middle beam is fixedly arranged on the vertical rail 58, the middle beam plate is arranged on the vertical rail 58, and is fixedly arranged on the upper side and is arranged on the top of the cutting and is arranged on the cutting and on the cutting side 58, and on the top, and cutting side, and cutting wire clamping plate 58, and the side, and cutting support plate 58, and is positioned.

The multi-station synchronous pressing and cutting device further comprises a wire residue placing disc 59, wherein the wire residue placing disc 59 is arranged on the machine base body 1 and is adapted to the lower portion of the pressing and cutting base body 51, the wire residue passing groove 591 which is adapted to the wire residue placing disc 59 is arranged on the pressing and cutting base body 51, and the wire residue placing disc 59 is adapted to the lower portion of the wire residue passing groove 591.

The variable-pitch blanking device comprises a blanking supporting table 61, a blanking translation track beam 62, a blanking translation motor 63, a blanking translation moving member 64 and a lifting variable-pitch material taking assembly, wherein the blanking supporting table 61 is arranged on the machine base body 1 and is adapted to be arranged on one side of the blanking tangent line base body 51, the blanking translation track beam 62 is adapted to be transversely arranged on the blanking supporting table 61, the blanking translation motor 63 is arranged on the blanking supporting table 61, the blanking translation moving member 64 is adapted to be movably arranged on the blanking translation track beam 62 through a blanking translation track 621 and is in transmission connection with the output end of the blanking translation motor 63, and the lifting variable-pitch material taking assembly is adapted to be arranged on the blanking translation moving member 64 and is adapted to be movably arranged above the product placement position 532.

The lifting and displacement material taking assembly comprises a first section lifting travel cylinder 71, a first section lifting travel plate 72, a second section lifting travel cylinder 73, a displacement track plate 74, a second section lifting travel plate 75, a displacement translation track 76, a follow-up translation piece 77 and a pneumatic material taking clamping jaw 78, wherein the first section lifting travel cylinder 71 is fixedly and vertically arranged on the blanking translation moving piece 64, the first section lifting travel plate 72 is vertically and movably arranged on the front end face of the blanking translation moving piece 64 through the first section lifting travel track 721 and is connected with the output end of the first section lifting travel cylinder 71, the second section lifting travel cylinder 73 is fixedly and vertically arranged on the first section lifting travel plate 72, the displacement track plate 74 is fixedly connected with the outer wall of the second section lifting travel cylinder 73 through a fixed connection plate 741, the second section lifting travel plate 75 is movably arranged on the back face of the displacement track plate 74 and is connected with the output end of the second section lifting travel cylinder 73, the displacement track 76 is horizontally arranged on the front end face of the second section lifting travel plate 75, four follow-up translation pieces 77 are movably arranged on the front end face of the blanking translation moving piece 64 and are respectively arranged on the four guide rails 742, the four follow-up translation pieces are respectively arranged on the four guide rails 77, and the four special-shaped guide rails are respectively arranged on the four lifting and displacement guide rails 77 are respectively arranged on the upper end of the upper section lifting and the lower section lifting and displacement travel rail seat, the lifting and displacement material lifting assembly is arranged.

After the four carrying pneumatic magnetic ring clamping jaws 48 clamp magnetic ring products in operation, under the drive of the carrying reciprocating rotation motor 42 and the motion action of the guide pin in the lifting translation track through groove 431, the four carrying pneumatic magnetic ring clamping jaws 48 firstly ascend by a preset height, then translate to the right by a preset distance, finally descend by a preset height, the four magnetic ring products are stably placed on the four product placing positions 532 on the tangential transfer jig 53 placed at the head end of the tangential transfer track 531, and then the carrying pneumatic magnetic ring clamping jaws 48 reset and continue the next carrying clamping placing operation.

After four magnetic ring products are placed on the tangent transfer jig 53 at the head end of the tangent transfer rail 531, the tangent transfer motor 52 drives the tangent transfer jig 53 to enter the two door frames 55, between the two clamp groups and below the lower pressing tangent plate 58, the pneumatic clamp 54 extends forwards and clamps the tail wire on the product, each pneumatic clamp 54 correspondingly clamps the tail wire of one magnetic ring product, at the moment, the lower pressing tangent cylinder 57 drives the lower pressing tangent plate 58 to descend, the pressing tangent block 581 presses against the magnetic ring body of the magnetic ring product, the tangent position 582 is matched with the edge of the bottom plate of the magnetic ring body, and the tail wire is cut off through pressure. After the tail wire is cut, the wire cutting plate 58 is pressed down, the pneumatic wire clamping fixture 54 is reset, the cut wire tail is loosened when the pneumatic wire clamping fixture 54 is reset, and the wire tail freely passes through the wire tail and falls into the wire tail placing tray 59 through the groove 591. The wire cutting transfer motor 52 drives the wire cutting transfer jig 53 to move to the tail end of the wire cutting transfer rail 531, and four magnetic ring products on the wire cutting transfer jig 53 are respectively arranged below the four pneumatic material taking clamping jaws 78, at this time, the wire cutting transfer jig 53 is driven by the wire cutting transfer motor 52 to reset, and the next wire cutting pressing process is prepared.

The four pneumatic material taking clamping jaws 78 are driven to descend and clamp in sequence by the first-stage lifting stroke cylinder 71 and the second-stage lifting stroke cylinder 73 to take four magnetic ring products, then ascend in sequence under the driving of the first-stage lifting stroke cylinder 71 and the second-stage lifting stroke cylinder 73, and simultaneously move right in a translational manner to the upper part of external material receiving equipment under the driving of the blanking moving motor 63, and finally descend and discharge the four magnetic ring products under the driving of the first-stage lifting stroke cylinder 71 and the second-stage lifting stroke cylinder 73. The lifting guide piece 771 on the follow-up translation piece 77 along with the guiding of the through groove 742 of the special-shaped track in the lifting process of the secondary section realizes that the distance between each pneumatic material taking clamping jaw 78 becomes smaller when the material is taken down, the distance between four product placing positions 532 on the adaptive tangent line transferring jig 53 becomes larger when the material is taken up, the distance between each pneumatic material taking clamping jaw 78 is prevented from being mutually interfered when the material is lifted up and carried, the distance between each pneumatic material taking clamping jaw 78 becomes smaller again when the material is taken down, the product placing interval of the adaptive external material receiving equipment is adapted, the consistency of the placing interval of the whole product is ensured under the condition that the product is not interfered when the material is taken up, and standardized production is convenient.

The utility model is suitable for the field of winding the magnetic ring tangents of the foot inductor.

Claims (6)

1. The utility model provides a twine equidistant transport of foot magnetic ring and tangent line mechanism which characterized in that: the automatic lifting and cutting machine comprises a machine base body (1), wherein an equidistant lifting and translation carrying device, a multi-station synchronous pressing and cutting device and a variable-pitch blanking device are sequentially arranged on the machine base body (1) in an adaptive mode, and the carrying end of the equidistant lifting and translation carrying device and the carrying end of the variable-pitch blanking device are respectively corresponding to the adaptive activity of the multi-station synchronous pressing and cutting device; the equidistant lifting translation carrying device comprises a carrying support frame (41), a carrying reciprocating rotating motor (42), a lifting translation track plate (43), a crank (44), a lifting driven handle (45), a carrying translation track (46), a carrying translation piece (47), a carrying pneumatic magnetic ring clamping jaw (48) and a carrying machine cover (49); the multi-station synchronous pressing and cutting device comprises a pressing and cutting base body (51), a cutting transfer motor (52), a cutting transfer jig (53), a pneumatic wire clamping jig (54), a portal (55), a middle beam frame plate (56), a pressing and cutting cylinder (57) and a pressing and cutting plate (58); the variable-pitch blanking device comprises a blanking supporting table (61), a blanking translation track beam (62), a blanking moving motor (63), a blanking translation moving piece (64) and a lifting variable-pitch material taking assembly.

2. The equally spaced carrying and cutting mechanism for a wound magnetic ring as claimed in claim 1, wherein: the carrying support frame (41) is arranged on the machine base body (1), the carrying reciprocating rotation motor (42) and the lifting translation track plate (43) are respectively arranged on the carrying support frame (41) in an adapting mode, the carrying reciprocating rotation motor (42) is arranged on the back face of the lifting translation track plate (43), a lifting translation track through groove (431) is arranged on the lifting translation track plate (43) in an adapting mode, the crank (44) is movably arranged on the front end face of the lifting translation track plate (43) in an adapting mode, the head end of the crank (44) is fixedly connected with the output end of the carrying reciprocating rotation motor (42), a guide pin is arranged on the back face of the tail end of the crank (44), the guide pin is movably arranged in the lifting translation track through groove (431) in an adapting mode, the head end of the lifting driven handle (45) is movably hinged on the front end face of the tail end of the crank (44), the carrying translation track (46) is horizontally arranged on the carrying support frame (41) and is movably arranged on the lifting translation track (47) in an adapting mode, the lifting translation track (47) is movably arranged on the lifting translation track (47) in an adapting mode, the plurality of carrying pneumatic magnetic ring clamping claws (48) are adapted and arranged at the lower section of the lifting driven handle (45) in parallel, and the carrying machine cover (49) is adapted and arranged on the carrying supporting frame (41).

3. The equally spaced carrying and cutting mechanism for a wound magnetic ring as claimed in claim 2, wherein: the pressing-down tangent line base body (51) is arranged on the machine base body (1) and is adapted to one side of the carrying support frame (41), the tangent line transfer motor (52) is adapted to be arranged on the pressing-down tangent line base body (51), the tangent line transfer jig (53) is adapted to be movably arranged on the pressing-down tangent line base body (51) through a tangent line moving track (531) and is in transmission connection with the output end of the tangent line transfer motor (52), a plurality of pneumatic wire clamping jigs (54) are arranged on the pressing-down tangent line base body (51) in parallel and form a group of wire clamping jigs, two groups of wire clamping jigs are respectively adapted to be arranged on two sides of the tangent line moving track (531), two wire clamping jigs (55) are respectively and vertically arranged on the pressing-down tangent line base body (51), two wire clamping jigs (55) are correspondingly arranged above the tangent line moving track (531), two groups of wire clamping jigs are adapted to be arranged between two wire clamping jigs (55), two wire clamping jigs are adapted to be arranged between two wire clamping jigs (55) and are arranged on the vertical wire clamping jigs (57) in the vertical frame (56) and are arranged on the vertical frame (57), the vertical activity of pushing down tangent line board (58) through pushing down track (561) adaptation sets up on the preceding terminal surface of well roof beam frame plate (56) and with the output fixed connection of pushing down tangent line cylinder (57), the bottom of pushing down tangent line board (58) is provided with presses and decides tangent line piece (581), it is provided with tangent line position (582) to press the long edge in the bottom of deciding tangent line piece (581), evenly be provided with a plurality of product on transferring jig (53) and put position (532), push down tangent line board (58) drive the vertical activity of pressing decides tangent line piece (581) adaptation and arranges a plurality of the top that product put position (532).

4. A pin-wound magnetic ring equidistant handling and wire cutting mechanism as set forth in claim 3, wherein: the multi-station synchronous pressing and cutting device comprises a machine base body (1) and is characterized in that the multi-station synchronous pressing and cutting device further comprises a wire residue placing disc (59), the wire residue placing disc (59) is arranged on the machine base body (1) and is adapted to the lower portion of the pressing and cutting base body (51), a wire residue passing groove (591) adapted to the wire residue placing disc (59) is formed in the pressing and cutting base body (51), and the wire residue placing disc (59) is adapted to the lower portion of the wire residue passing groove (591).

5. The equally spaced carrying and cutting mechanism for a wound magnetic ring as claimed in claim 4, wherein: the blanking supporting table (61) is arranged on the machine base body (1) and is adapted to one side of the blanking tangent line base body (51), the blanking translation track beam (62) is adapted to be transversely arranged on the blanking supporting table (61), the blanking moving motor (63) is arranged on the blanking supporting table (61), the blanking translation moving piece (64) is adapted to be movably arranged on the blanking translation track beam (62) through the blanking translation track (621) and is in transmission connection with the output end of the blanking moving motor (63), and the lifting and variable-pitch material taking assembly is adapted to be arranged on the blanking translation moving piece (64) and is adapted to be movably arranged above the product placing position (532).

6. The equally spaced carrying and cutting mechanism for a wound magnetic ring as claimed in claim 5, wherein: the lifting and displacement material taking assembly comprises a first-stage lifting and displacement cylinder (71), a first-stage lifting and displacement plate (72), a second-stage lifting and displacement cylinder (73), a displacement track plate (74), a second-stage lifting and displacement plate (75), a displacement translation track (76), a follow-up translation member (77) and a pneumatic material taking clamping jaw (78), wherein the first-stage lifting and displacement cylinder (71) is fixedly and vertically arranged on a blanking translation moving member (64), the first-stage lifting and displacement plate (72) is vertically and movably arranged on the front end surface of the blanking translation moving member (64) through a first-stage lifting and displacement track (721) in an adapting manner and is connected with the output end of the first-stage lifting and displacement cylinder (71), the second-stage lifting and displacement cylinder (73) is fixedly and vertically arranged on the first-stage lifting and displacement plate (72), the displacement track plate (74) is fixedly connected with the outer wall of the second-stage lifting and displacement cylinder (73) through a fixed connecting plate (741), the second-stage lifting and displacement plate (75) is arranged on the back surface of the second-stage lifting and displacement plate (76) through a second-stage lifting and displacement track (751) in an adapting manner and vertically movable manner is arranged on the front end surface of the displacement plate (73), the automatic feeding device is characterized in that a plurality of special-shaped track through grooves (742) are uniformly arranged on the variable-pitch track plate (74) in an adapting mode, the distance between the upper ends of the special-shaped track through grooves (742) is larger than that between the lower ends of the special-shaped track through grooves (742), lifting guide pieces (771) are arranged on the follow-up translation pieces (77), the lifting guide pieces (771) on the follow-up translation pieces (77) are respectively and movably arranged in the special-shaped track through grooves (742) in an adapting mode, and the pneumatic feeding clamping claws (78) are respectively and adaptively arranged at the lower sections of the follow-up translation pieces (77) and are respectively and movably arranged above the product placing positions (532) in an adapting mode.