A high-precision small pin fully automatic feeding device

Abstract

The present invention relates to the technical field related to small pin processing, and specifically to a high-precision small pin fully automatic feeding device, which comprises a base, a fixed tooth plate, a ejecting tooth plate and a silo seat, wherein a support leg is fixedly installed on the lower surface of the base, mounting seats are fixedly installed on both ends of the base, and a guide rod is fixedly installed between the mounting seats on both sides, and a group of guide rods are symmetrically arranged, and a primary mounting hole is opened on the fixed tooth plate; a high-precision small pin fully automatic feeding device composed of a base, a fixed tooth plate, an ejecting tooth plate and a silo seat is arranged, and the ejecting tooth plate is driven to reciprocate up and down by a driving structure, and the primary tooth body on the fixed tooth plate and the secondary tooth body on the ejecting tooth plate are staggered, so that when the ejecting tooth plate reciprocates up and down once, the thin straight rod to be fed can be transported one grid to the left, thereby controlling the amount of feeding to avoid multiple materials falling at the same time and affecting the normal operation of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field related to small pin processing, and in particular to a high-precision small pin fully automatic feeding device. Background Art

[0002] Small pins refer to a type of needle-type mechanical parts, which require a relatively long thin straight rod to be fed into a feeding port during processing. However, a traditional feeding structure is usually a wedge-shaped platform, and the feeding process cannot accurately control the feeding quantity. If multiple materials fall into the feeding port at the same time, material jamming may easily occur, resulting in product scrapping. In severe cases, it may even cause damage to the equipment, thereby affecting the normal production of the production line. To this end, the present invention proposes a high-precision small pin fully automatic feeding device to solve the above problem. Summary of the invention

[0003] The object of the present invention is to provide a high-precision fully automatic feeding device for small pins to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-precision small pin fully automatic feeding device, the high-precision small pin fully automatic feeding device comprising:

[0005] A base, a support leg is fixedly mounted on the lower surface of the base, mounting seats are fixedly mounted on both ends of the base, and a guide rod is fixedly mounted between the mounting seats on both sides, and a group of guide rods are symmetrically arranged;

[0006] A fixed tooth plate, wherein a primary mounting hole is formed on the fixed tooth plate, a primary connecting seat is integrally formed on the side of the mounting hole, a primary screw hole is formed on the primary connecting seat, a primary threaded hole is formed on the guide rod, the primary mounting hole is arranged corresponding to the primary screw hole, the primary mounting hole is arranged corresponding to the guide rod, the fixed tooth plate is mounted on the guide rod, and the primary connecting seat is positioned with the guide rod through the primary connecting screw;

[0007] A material ejecting tooth plate, wherein a guide rod groove is formed on the material ejecting tooth plate, wherein the guide rod groove is a vertically arranged straight groove, and the guide rod is arranged to pass through the guide rod groove, and the material ejecting tooth plate is driven up and down by a driving structure;

[0008] A silo seat is provided with a feeding trough, the cross section of which is an inverted isosceles trapezoid, and the thin straight rod to be fed is transported backwards from the feeding trough.

[0009] Preferably, a primary tooth body is integrally formed on the upper side edge of the fixed tooth plate, and a secondary tooth body is integrally formed on the upper side edge of the top material tooth plate, when the top material tooth plate is in a dropped state, the coverage area of ​​the secondary tooth body is completely within the coverage area of ​​the fixed tooth plate, and when the top material tooth plate is in a raised state, the coverage area of ​​the primary tooth body is completely within the coverage area of ​​the top material tooth plate, and the primary tooth body and the secondary tooth body are staggered, and the left ends of the fixed tooth plate and the top material tooth plate are lower than the right ends.

[0010] Preferably, the driving structure is composed of a rotating shaft, a steering seat, a lever, a cam piece, a servo electric cylinder and a transmission member. The rotating shaft is rotatably mounted on the mounting seat, the base is provided with a primary guide groove, the servo electric cylinder is fixedly mounted on the lower surface of the base, and the cam piece is movably arranged in the primary guide groove, and a connecting plate is integrally formed on the lower end surface of the cam piece, and an electric cylinder connecting seat is integrally formed on the lower end surface of the connecting plate, the telescopic rod end of the servo electric cylinder is fixedly connected to the electric cylinder connecting seat, a primary positioning hole is provided on the steering seat, a secondary mounting hole is provided on the side wall of the primary positioning hole, a secondary screw hole is provided on the rotating shaft, and the secondary mounting hole is arranged corresponding to the secondary screw hole, the steering seat is sleeved on the rotating shaft through the primary positioning hole, and the steering seat is fixed to the rotating shaft through the secondary positioning screw.

[0011] Preferably, a primary through hole is provided on the fixed tooth plate, a U-shaped groove is provided on the top material tooth plate, the rotating shaft, the primary through hole and the U-shaped groove are arranged correspondingly, and when the rotating shaft is actually installed, the rotating shaft does not contact the side walls of the primary through hole and the U-shaped groove, a secondary positioning hole is provided on the transmission member, a tertiary mounting hole is provided on the side wall of the secondary positioning hole, a tertiary screw hole is provided on the rotating shaft, the tertiary mounting hole and the tertiary screw hole are arranged correspondingly, the transmission member is sleeved on the rotating shaft through the secondary positioning hole, and the transmission member is fixed to the rotating shaft by the tertiary positioning screw.

[0012] Preferably, a push rod is integrally formed on the end face of the rotating shaft, a push rod groove is opened on the ejector tooth plate, the push rod groove is a straight groove, the push rod is movably arranged in the push rod groove, and when the fixed tooth plate and the transmission part are actually installed, the sum of the push rod length value and the ejector tooth plate thickness value is greater than the spacing value between the fixed tooth plate and the transmission part.

[0013] Preferably, the rotating shaft and the base are connected by a primary tension spring, and the primary tension spring is arranged to bypass the upper side of the rotating shaft and is connected to the side of the rotating shaft away from the primary tension spring. A guide wheel is rotatably installed on the lever, and the upper half of the cam sheet is in a right-angled trapezoidal cross-section, and the inclined surface of the cam sheet is arranged toward the guide wheel. When the servo electric cylinder is in a return state, the ejector tooth plate is in a dropped state, and at this time, the push rod is located on the left side of the push rod slot. When the servo electric cylinder is in a process state, the ejector tooth plate is in a raised state, and at this time, the push rod is located on the right side of the push rod slot.

[0014] Preferably, a seat plate is fixedly mounted on the guide rod, the height of the seat plate facing the silo seat is lower than the height of the side away from the silo seat, and the installation method of the seat plate on the guide rod is the same as the installation method of the fixed tooth plate, and there is no contact between the seat plate and the rotating shaft, and the setting position of the seat plate is located in the middle position of adjacent fixed tooth plates.

[0015] Preferably, a primary silo cover and a secondary silo cover are provided on the silo seat, a row of rotating rod seats are fixedly installed on the left and right side walls of the silo seat, a primary rotating rod is fixedly installed on the rotating rod seats, a secondary rotating rod is fixedly installed on the primary silo cover and the secondary silo cover, and the corresponding primary rotating rods and secondary rotating rods are connected by connecting rods, and the connecting rods are rotatably connected to the primary rotating rod and the secondary rotating rod.

[0016] Preferably, a secondary guide groove is provided on the base, and a group of secondary guide grooves are symmetrically arranged. The side edge of the connecting plate is integrally formed with a push plate seat, and the upper end surface of the push plate seat is integrally formed with a push plate, and the push plate is movably arranged in the secondary guide groove. The outer sides of the primary and secondary silo covers are fixedly installed with force seats by fixing screws, and the force seats are arranged corresponding to the push plates, and a gap is left between the push plates and the silo covers. When the servo electric cylinder moves, the push plate pushes the force seat to drive the primary and secondary silo covers to open to both sides. The front sides of the primary and secondary silo covers are connected to the base through secondary tension springs. When the secondary tension springs are in a reset state, the primary and secondary silo covers are in a closed state.

[0017] Preferably, the port positions of the first-level silo cover and the second-level silo cover are cut to form chamfers. When the first-level silo cover and the second-level silo cover are in an open state, the chamfered edges of the port positions of the first-level silo cover and the second-level silo cover are respectively flush with the left and right edges of the feeding trough on the silo seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. A high-precision small pin fully automatic feeding device composed of a base, a fixed tooth plate, a feed tooth plate and a silo seat is provided, and the feed tooth plate is driven to reciprocate up and down by a driving structure, and the first-level tooth body on the fixed tooth plate and the second-level tooth body on the feed tooth plate are staggered, so that when the feed tooth plate reciprocates up and down once, the thin straight rod to be fed can be transported one grid to the left, thereby controlling the amount of feeding to avoid multiple materials falling at the same time and affecting the normal operation of the equipment;

[0020] 2. A primary silo cover and a secondary silo cover are arranged on the silo seat, so that after the thin straight rod to be fed enters the feeding trough, the primary silo cover and the secondary silo cover are covered by the opening and closing action, thereby preventing the thin straight rod from popping out of the feeding trough when being extracted by the extraction structure, thereby causing deformation of the material;

[0021] 3. The driving structure is configured to be composed of a rotating shaft, a steering seat, a lever, a cam plate, a servo electric cylinder and a transmission member, and a push plate seat is arranged on the side of the connecting plate, and a push plate is arranged on the push plate seat, and a force seat is arranged on the primary silo cover and the secondary silo cover, so that the force seat is pushed by the push plate, and the primary silo cover and the secondary silo cover are opened and closed under the transmission action of the connecting rod, so that the ejector tooth plate, the primary silo cover and the secondary silo cover are synchronously driven by a single servo electric cylinder, thereby reducing the use of the driving structure on the device, optimizing the transmission method, and ensuring the synchronization of the actions of the ejector tooth plate, the primary silo cover and the secondary silo cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 4 It is a lower side view of the present invention;

[0026] Figure 5 for Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 6 This is a schematic diagram of the reset state of the ejector tooth plate;

[0028] Figure 7 for Figure 6 A magnified schematic diagram of the structure at D in the middle;

[0029] Figure 8This is a schematic diagram of the structure of the fixed tooth plate of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of the ejector tooth plate of the present invention;

[0031] Fig.10 This is a schematic diagram of the jacking state of the jacking tooth plate;

[0032] Fig.11 It is a schematic diagram of the positions of the cam piece and the push plate of the present invention;

[0033] Fig.12 It is a schematic diagram of the transmission structure of the present invention;

[0034] Fig.13 This is a schematic diagram of the steering seat structure of the present invention;

[0035] Fig.14 It is a schematic diagram of the structure of the rotating rod seat of the present invention.

[0036] In the figure: base 1, fixed tooth plate 2, ejector tooth plate 3, silo seat 4, mounting seat 5, guide rod 6, rotating shaft 7, steering seat 8, lever 9, cam piece 10, servo electric cylinder 11, transmission member 12, connecting plate 13, electric cylinder connecting seat 14, primary positioning hole 15, secondary mounting hole 16, guide wheel 17, primary mounting hole 18, primary through hole 19, primary connecting seat 20, U-shaped groove 21, guide rod groove 22, push rod groove 23, primary guide groove 24, secondary positioning hole 25, tertiary mounting hole 26, push rod 27, primary tension spring 28, push plate seat 29, push plate 30, primary silo cover 31, secondary silo cover 32, rotating rod seat 33, primary rotating rod 34, secondary rotating rod 35, connecting rod 36, force seat 37, secondary tension spring 38, seat plate 40. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-14 The present invention provides the following five preferred embodiments:

[0039] Embodiment 1

[0040] A high-precision small pin fully automatic feeding device, the high-precision small pin fully automatic feeding device comprises a base 1, a fixed tooth plate 2, a material ejecting tooth plate 3 and a silo seat 4, a support leg is fixedly installed on the lower surface of the base 1, mounting seats 5 are fixedly installed at both ends of the base 1, and a guide rod 6 is fixedly installed between the mounting seats 5 on both sides, and a group of guide rods 6 are symmetrically arranged, a primary mounting hole 18 is opened on the fixed tooth plate 2, and a primary connecting seat 20 is integrally formed on the side of the mounting hole 18, a primary screw hole is opened on the primary connecting seat 20, a primary threaded hole is opened on the guide rod 6, and a primary mounting hole 18 is opened on the fixed tooth plate 2. The hole 18 is arranged corresponding to the primary screw hole, the primary mounting hole 18 is arranged corresponding to the guide rod 6, the fixed tooth plate 2 is installed on the guide rod 6, and the primary connecting seat 20 is positioned with the guide rod 6 by the primary connecting screw, and a guide rod groove 22 is provided on the ejecting tooth plate 3, the guide rod groove 22 is a vertically arranged straight groove, and the guide rod 6 is passed through the guide rod groove 22, and the ejecting tooth plate 3 is driven up and down by the driving structure, and a feeding trough is provided on the silo seat 4, the cross-section of the feeding trough is an inverted isosceles trapezoid, and the thin straight rod to be fed is transported backward from the feeding trough.

[0041] A primary tooth body is integrally formed on the upper side of the fixed tooth plate 2, and a secondary tooth body is integrally formed on the upper side of the ejecting tooth plate 3. When the ejecting tooth plate 3 is in a dropped state, the coverage area of ​​the secondary tooth body is completely within the coverage area of ​​the fixed tooth plate 2, and when the ejecting tooth plate 3 is in a raised state, the coverage area of ​​the primary tooth body is completely within the coverage area of ​​the ejecting tooth plate 3, and the primary tooth body and the secondary tooth body are staggered. The left ends of the fixed tooth plate 2 and the ejecting tooth plate 3 are lower than the right end. The driving structure is composed of a rotating shaft 7, a steering seat 8, a shifting rod 9, a cam piece 10, a servo electric cylinder 11 and a transmission member 12. The rotating shaft 7 is rotatably mounted on the mounting seat 5, and a primary guide groove is provided on the base 1 24, the servo electric cylinder 11 is fixedly mounted on the lower surface of the base 1, and the cam piece 10 is movably arranged in the primary guide groove 24, and the lower end surface of the cam piece 10 is integrally formed with a connecting plate 13, and the lower end surface of the connecting plate 13 is integrally formed with an electric cylinder connecting seat 14, the telescopic rod end of the servo electric cylinder 11 is fixedly connected to the electric cylinder connecting seat 14, a primary positioning hole 15 is provided on the steering seat 8, a secondary mounting hole 16 is provided on the side wall of the primary positioning hole 15, a secondary screw hole is provided on the rotating shaft 7, and the secondary mounting hole 16 is arranged corresponding to the secondary screw hole, the steering seat 8 is sleeved on the rotating shaft 7 through the primary positioning hole 15, and the steering seat 8 is fixed to the rotating shaft 7 through the secondary positioning screw.

[0042] A primary through hole 19 is provided on the fixed tooth plate 2, a U-shaped groove 21 is provided on the ejector tooth plate 3, the rotating shaft 7, the primary through hole 19, and the U-shaped groove 21 are arranged correspondingly, and when the rotating shaft 7 is actually installed, the rotating shaft 7 does not contact the side walls of the primary through hole 19 and the U-shaped groove 21, a secondary positioning hole 25 is provided on the transmission member 12, a tertiary mounting hole 26 is provided on the side wall of the secondary positioning hole 25, a tertiary screw hole is provided on the rotating shaft 7, and the tertiary mounting hole 26 is arranged correspondingly to the tertiary screw hole, and the transmission member 12 is provided through the secondary The positioning hole 25 is sleeved on the rotating shaft 7, and the transmission member 12 is fixed on the rotating shaft 7 by a three-stage positioning screw. A push rod 27 is integrally formed on the end face of the rotating shaft 7. A push rod groove 23 is provided on the ejector tooth plate 3. The push rod groove 23 is a straight groove. The push rod 27 is movably arranged in the push rod groove 23. When the fixed tooth plate 2 and the transmission member 12 are actually installed, the sum of the length value of the push rod 27 and the thickness value of the ejector tooth plate 3 is greater than the spacing value between the fixed tooth plate 2 and the transmission member 12. The rotating shaft 7 and the base 1 are connected by a primary tension spring 28. The primary tension spring 28 is arranged around the side of the rotating shaft 7 and is connected to the side of the rotating shaft 7 away from the primary tension spring 28. The guide wheel 17 is rotatably installed on the lever 9. The upper half of the cam sheet 10 has a right-angle trapezoidal cross-section, and the inclined surface of the cam sheet 10 is arranged toward the guide wheel 17. When the servo electric cylinder 11 is in the return state, the ejector tooth plate 3 is in a falling state, and at this time, the push rod 27 is located on the left side of the push rod groove 23. When the servo electric cylinder 11 is in the process state, the ejector tooth plate 3 is in a jacking state, and at this time, the push rod 27 is in the position On the right side of the push rod groove 23, a high-precision small-pin fully automatic feeding device composed of a base 1, a fixed tooth plate 2, a top material tooth plate 3 and a silo seat 4 is arranged, and the top material tooth plate 3 is driven to reciprocate up and down by a driving structure, and the upper first-level tooth body of the fixed tooth plate 2 and the upper second-level tooth body of the top material tooth plate 3 are staggered. When the top material tooth plate 3 reciprocates up and down once, the thin straight rod to be fed can be transported one grid to the left, thereby controlling the amount of feeding to avoid multiple materials falling at the same time and affecting the normal operation of the equipment.

[0043] Embodiment 2

[0044] See also Figure 1-6 and Figure 8-10 and Figure 12-14 On the basis of the first embodiment, a seat plate 40 is fixedly installed on the guide rod 6, and the height of the side of the seat plate 40 facing the silo seat 4 is lower than the height of the side away from the silo seat 4, and the installation method of the seat plate 40 on the guide rod 6 is the same as the installation method of the fixed tooth plate 2, and there is no contact between the seat plate 40 and the rotating shaft 7, and the setting position of the seat plate 40 is located in the middle position of the adjacent fixed tooth plate 2, so as to avoid the downward disturbance deformation of the thin straight rod for loading.

[0045] Embodiment 3

[0046] See also Figure 1-7On the basis of the second embodiment, a primary silo cover 31 and a secondary silo cover 32 are provided on the silo seat 4, a row of rotating rod seats 33 are fixedly installed on the left and right side walls of the silo seat 4, a primary rotating rod 34 is fixedly installed on the rotating rod seats 33, and a secondary rotating rod 35 is fixedly installed on the primary silo cover 31 and the secondary silo cover 32, and the corresponding primary rotating rod 34 and secondary rotating rod 35 are connected by a connecting rod 36, and the connecting rod 36 and the primary rotating rod 34 and the secondary rotating rod 35 are all rotatably connected. By arranging the primary silo cover 31 and the secondary silo cover 32 on the silo seat 4, the primary silo cover 31 and the secondary silo cover 32 are opened and closed, so that after the thin straight rod to be fed enters the feeding trough, the primary silo cover 31 and the secondary silo cover 32 are covered, thereby preventing the thin straight rod from popping out of the feeding trough when the extraction structure is extracted, thereby causing deformation of the material.

[0047] Embodiment 4

[0048] See also Figure 1-7 and Fig.11 On the basis of the third embodiment, a secondary guide groove 28 is provided on the base 1, and a group of secondary guide grooves 28 are symmetrically arranged. A push plate seat 29 is integrally formed on the side of the connecting plate 13, and a push plate 30 is integrally formed on the upper end surface of the push plate seat 29. The push plate 30 is movably arranged in the secondary guide groove 28. The outer sides of the primary silo cover 31 and the secondary silo cover 32 are fixedly installed with a force seat 37 by fixing screws. The force seat 37 is arranged corresponding to the push plate 30, and a gap is left between the push plate 30 and the silo cover. When the servo electric cylinder 11 moves, the push plate 30 pushes the force seat 37 to drive the primary silo cover 31 and the secondary silo cover 32 to open to both sides. The front side ends of the primary silo cover 31 and the secondary silo cover 32 are connected to the base 1 through the secondary tension spring 38. When the secondary tension spring 38 is in the reset state, the primary silo The cover 31 and the secondary silo cover 32 are in a closed state. The driving structure is set to be composed of a rotating shaft 7, a steering seat 8, a lever 9, a cam plate 10, a servo electric cylinder 11 and a transmission member 12, and a push plate seat 29 is set on the side of the connecting plate 13, and a push plate 30 is set on the push plate seat 29, and a force seat 37 is set on the primary silo cover 31 and the secondary silo cover 32, so that the force seat 37 is pushed by the push plate 30, and the primary silo cover 31 and the secondary silo cover 32 are opened and closed under the transmission action of the connecting rod 36, so that the ejector gear plate 3, the primary silo cover 31 and the secondary silo cover 32 are synchronously driven by a single servo electric cylinder 11, thereby reducing the use of the driving structure on the device, optimizing the transmission method, and ensuring the synchronization of the actions of the ejector gear plate 3, the primary silo cover 31 and the secondary silo cover 32.

[0049] Embodiment 5

[0050] See also Figure 7On the basis of the fourth embodiment, the port positions of the first-level silo cover 31 and the second-level silo cover 32 are cut to form chamfers. When the first-level silo cover 31 and the second-level silo cover 32 are in the open state, the chamfered edges of the port positions of the first-level silo cover 31 and the second-level silo cover 32 are respectively arranged flush with the left and right bevels of the feeding trough on the silo seat 4. The chamfered structure of the edges of the first-level silo cover 31 and the second-level silo cover 32 facilitates the material to fall into the feeding trough.

[0051] Working principle: in actual use, the servo electric cylinder 11 is driven to move forward, thereby driving the cam piece 10 and the push plate 30 to move forward, wherein the cam piece 10 will lift the guide wheel 17, and drive the rotating shaft 7 to rotate through the steering seat 8 and the lever 9, thereby driving the transmission member 12 to rotate, so that the push rod 27 on the transmission member 12 moves in the push rod groove 23, thereby driving the ejector tooth plate 3 to move up, and then the servo electric cylinder 11 returns and drives the rotating shaft 7 to reset under the action of the primary tension spring 28, so as to reset the ejector tooth plate 3, thereby realizing the delivery of the thin straight rod to be fed to the left by one grid, wherein the movement of the push plate 30 will push the force seat 37, and realize the opening of the primary silo cover 31 and the secondary silo cover 32 under the transmission action of the connecting rod 36, and the pullback of the secondary tension spring 38 will realize the closing of the primary silo cover 31 and the secondary silo cover 32.

[0052] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A high-precision small pin fully automatic feeding device, characterized by: The high-precision small pin fully automatic feeding device comprises: A base (1), wherein a support leg is fixedly mounted on the lower surface of the base (1), mounting seats (5) are fixedly mounted on both ends of the base (1), and guide rods (6) are fixedly mounted between the mounting seats (5) on both sides, and a group of guide rods (6) are symmetrically arranged; A fixed tooth plate (2), wherein a primary mounting hole (18) is formed on the fixed tooth plate (2), a primary connecting seat (20) is integrally formed on the side of the primary mounting hole (18), a primary screw hole is formed on the primary connecting seat (20), a primary threaded hole is formed on the guide rod (6), the primary mounting hole (18) and the primary screw hole are arranged correspondingly, the primary mounting hole (18) and the guide rod (6) are arranged correspondingly, the fixed tooth plate (2) is mounted on the guide rod (6), and the primary connecting seat (20) is positioned with the guide rod (6) by means of a primary connecting screw; A material ejecting tooth plate (3), wherein a guide rod groove (22) is formed on the material ejecting tooth plate (3), wherein the guide rod groove (22) is a vertically arranged straight groove, and the guide rod (6) is arranged to pass through the guide rod groove (22), and the material ejecting tooth plate (3) is driven up and down by a driving structure; A silo seat (4), wherein a feeding trough is provided on the silo seat (4), wherein the cross section of the feeding trough is an inverted isosceles trapezoid, and the thin straight rod to be fed is transported backwards from the feeding trough; The upper side of the fixed tooth plate (2) is integrally formed with a primary tooth body, and the upper side of the ejecting tooth plate (3) is integrally formed with a secondary tooth body, when the ejecting tooth plate (3) is in a dropped state, the coverage area of ​​the secondary tooth body is completely within the coverage area of ​​the fixed tooth plate (2), and when the ejecting tooth plate (3) is in an elevated state, the coverage area of ​​the primary tooth body is completely within the coverage area of ​​the ejecting tooth plate (3), and the primary tooth body and the secondary tooth body are staggered, and the left ends of the fixed tooth plate (2) and the ejecting tooth plate (3) are both lower than the right ends; The driving structure is composed of a rotating shaft (7), a steering seat (8), a lever (9), a cam plate (10), a servo electric cylinder (11) and a transmission member (12). The rotating shaft (7) is rotatably mounted on the mounting seat (5). The base (1) is provided with a primary guide groove (24). The servo electric cylinder (11) is fixedly mounted on the lower surface of the base (1). The cam plate (10) is movably arranged in the primary guide groove (24). The lower end surface of the cam plate (10) is integrally formed with a connecting plate (13). The lower end surface of the connecting plate (13) is integrally formed with an electric cylinder connecting seat (11). 4), the telescopic rod end of the servo electric cylinder (11) is fixedly connected to the electric cylinder connecting seat (14), the steering seat (8) is provided with a primary positioning hole (15), the side wall of the primary positioning hole (15) is provided with a secondary mounting hole (16), the rotating shaft (7) is provided with a secondary screw hole, the secondary mounting hole (16) is arranged corresponding to the secondary screw hole, the steering seat (8) is sleeved on the rotating shaft (7) through the primary positioning hole (15), and the steering seat (8) is fixed to the rotating shaft (7) through the secondary positioning screw, and the shifting rod (9) is fixedly connected to the steering seat (8); The fixed tooth plate (2) is provided with a primary through hole (19), the ejecting tooth plate (3) is provided with a U-shaped groove (21), the rotating shaft (7), the primary through hole (19) and the U-shaped groove (21) are arranged correspondingly, and when the rotating shaft (7) is actually installed, the rotating shaft (7) does not contact the side walls of the primary through hole (19) and the U-shaped groove (21), the transmission member (12) is provided with a secondary positioning hole (25), the side wall of the secondary positioning hole (25) is provided with a tertiary mounting hole (26), the rotating shaft (7) is provided with a tertiary screw hole, the tertiary mounting hole (26) is arranged correspondingly to the tertiary screw hole, the transmission member (12) is sleeved on the rotating shaft (7) through the secondary positioning hole (25), and the transmission member (12) is fixed to the rotating shaft (7) by a tertiary positioning screw; The end surface of the transmission member (12) is integrally formed with a push rod (27); the ejector tooth plate (3) is provided with a push rod groove (23); the push rod groove (23) is a straight groove; the push rod (27) is movably arranged in the push rod groove (23); when the fixed tooth plate (2) and the transmission member (12) are actually installed, the sum of the length of the push rod (27) and the thickness of the ejector tooth plate (3) is greater than the spacing between the fixed tooth plate (2) and the transmission member (12); The rotating shaft (7) and the base (1) are connected via a primary tension spring, the primary tension spring being arranged around the upper side of the rotating shaft (7) and being connected to the side of the rotating shaft (7) away from the primary tension spring. A guide wheel (17) is rotatably mounted on the lever (9). The cross section of the upper half of the cam sheet (10) is a right-angled trapezoid, and the inclined surface of the cam sheet (10) is arranged toward the guide wheel (17). When the servo electric cylinder (11) is in a return state, the ejector tooth plate (3) is in a falling state, and at this time, the push rod (27) is located on the left side of the push rod slot (23). When the servo electric cylinder (11) is in a forward state, the ejector tooth plate (3) is in a raised state, and at this time, the push rod (27) is located on the right side of the push rod slot (23).

2. A high-precision small pin fully automatic feeding device according to claim 1, characterized in that: A seat plate (40) is fixedly mounted on the guide rod (6), the height of the seat plate (40) facing the silo seat (4) is lower than the height of the side away from the silo seat (4), and the mounting method of the seat plate (40) on the guide rod (6) is the same as the mounting method of the fixed tooth plate (2), and there is no contact between the seat plate (40) and the rotating shaft (7), and the setting position of the seat plate (40) is located in the middle position of adjacent fixed tooth plates (2).

3. A high-precision small pin fully automatic feeding device according to claim 2, characterized in that: The silo seat (4) is provided with a primary silo cover (31) and a secondary silo cover (32); a row of rotating rod seats (33) are fixedly mounted on the left and right side walls of the silo seat (4); a primary rotating rod (34) is fixedly mounted on the rotating rod seats (33); a secondary rotating rod (35) is fixedly mounted on the primary silo cover (31) and the secondary silo cover (32); the corresponding primary rotating rods (34) and secondary rotating rods (35) are connected via a connecting rod (36); the connecting rod (36) is rotatably connected to the primary rotating rod (34) and the secondary rotating rod (35).

4. A high-precision small pin fully automatic feeding device according to claim 3, characterized in that: The base (1) is provided with a secondary guide groove (28), and a group of the secondary guide grooves (28) are symmetrically arranged. A push plate seat (29) is integrally formed on the side of the connecting plate (13), and a push plate (30) is integrally formed on the upper end surface of the push plate seat (29). The push plate (30) is movably arranged in the secondary guide groove (28). The outer sides of the primary silo cover (31) and the secondary silo cover (32) are fixedly mounted with a force bearing seat (37) by fixing screws. The force bearing seat (37) and the push plate (30) are mutually connected. The push plate (30) and the silo cover are correspondingly arranged, and a gap is left between them. When the servo electric cylinder (11) moves, the push plate (30) pushes the force-bearing seat (37) to drive the primary silo cover (31) and the secondary silo cover (32) to open to both sides. The front side ends of the primary silo cover (31) and the secondary silo cover (32) are connected to the base (1) through the secondary tension spring (38). When the secondary tension spring (38) is in the reset state, the primary silo cover (31) and the secondary silo cover (32) are in the closed state.

5. A high-precision small pin fully automatic feeding device according to claim 4, characterized in that: The port positions of the first-level silo cover (31) and the second-level silo cover (32) are both cut to form chamfers. When the first-level silo cover (31) and the second-level silo cover (32) are in an open state, the chamfered bevels at the port positions of the first-level silo cover (31) and the second-level silo cover (32) are respectively arranged flush with the left and right bevels of the feeding trough on the silo seat (4).

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