CN218539513U - Single-electric double-drive material shearing system of feeding machine - Google Patents

Abstract

A single-electric double-drive material shearing system of a feeder machine belongs to the technical field of glass machinery. Including servo motor (1) and reduction gear (2), the motor shaft of servo motor (1) docks with the input shaft of reduction gear (2), and servo motor (1) drives scissors arm (8) through reduction gear (2) and moves its characterized in that: the output shafts of the speed reducer (2) are respectively led out from two sides of the speed reducer (2), and the two output shafts are respectively connected with the two scissor arms (8) through the connecting rod mechanisms. In the single-electric double-drive shearing system of the feeder, the servo motor drives the two shear arms to swing through the speed reducer with the double output shafts respectively, so that the problems of instability and poor shearing precision of the system in a traditional single and double servo motor driving mode are solved, meanwhile, the accurate adjustment of the two shear arms is facilitated, and the operation precision is higher. When the power is cut off suddenly, the two shear arms are separated by the driving cylinder, so that the danger caused by the accumulation of glass raw materials in a molten state on the shear blade is avoided.

Description

Single-electric double-drive material shearing system of feeder

Technical Field

A single-electric double-drive material shearing system of a feeder belongs to the technical field of glass machinery.

Background

The feeder is a mechanical device for providing molten glass gob for a glass bottle making machine, and mainly comprises a material blending system, a material punching system, a material shearing system, refractory materials and an iron shell thereof. The material shearing system comprises one or more pairs of shearing blades, and is driven by driving power to continuously open and close to shear the glass raw materials in a molten state into gobs with preset sizes, and each minute can provide a plurality of to nearly thousand glass gobs for the bottle making machine.

In the prior art, the driving power for driving the material shearing system to act is mainly realized by two modes:

(1) The scissor blades are driven to close by a spring or an air cylinder and opened by a mechanical cam, but the mode has poor adaptability to machine speed, unstable system and tedious adjustment.

(2) In recent years, servo shearing systems which use servo motors as power to drive shearing gradually appear at home and abroad, and the servo shearing systems are divided into the following two types: 1) Single servo shearing system. In this way, only one servomotor is provided, which drives one of the scissor arms and indirectly drives the other scissor arm via a set of gears. The mode is unstable in system and poor in material shearing precision in actual use. 2) Double servo material shearing system. In this way, two servo motors are arranged, and the two servo motors respectively and independently drive the corresponding scissor arm to move. Although the method solves the problems of unstable system and poor shearing precision under the single servo motor driving mode to a certain extent, the difference of the left and right scissor arms is adjusted more complicatedly because the driver parameters of the two servo motors are completely the same and are not suitable for independent adjustment.

Meanwhile, the single servo material shearing system has the following defects: if the power failure phenomenon happens suddenly in the material shearing work, the material shearing system stops working immediately, so that the current state of the shear blade cannot be determined, if the material shearing system is in a closed state at the moment, glass raw materials in a molten state can be accumulated on the shear blade, and because the temperature of the glass raw materials is extremely high at the moment, if the glass raw materials are accumulated, the shear blade is easily damaged, great economic loss is caused, danger is easily caused, and certain potential safety hazards exist. The mode that double servo shearing system adopted when solving above-mentioned problem is: adopt the whole mode of pulling whole two servo material shearing systems of cylinder to avoid above-mentioned defect, but need great power, and factor of safety is not enough.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the servo motor drives the two shear arms to swing respectively through the speed reducer with the double output shafts, the problems of instability of a system and poor shearing precision in a single servo motor driving mode are solved, meanwhile, the accurate adjustment of the two shear arms is facilitated, the operation precision is high, and the single-electric double-drive shearing system of the dangerous feeding machine caused by accumulation of glass raw materials on the shear blades during sudden power failure is avoided.

The utility model provides a technical scheme that its technical problem adopted is: this single electric double-drive shearing system of feeder, including servo motor and reduction gear, servo motor's motor shaft and the input shaft butt joint of reduction gear, servo motor drives the motion of shear arm, its characterized in that through the reduction gear: the output shafts of the speed reducer are respectively led out from two sides of the speed reducer, the two output shafts are respectively connected with the two scissor arms through a connecting rod mechanism, a second input shaft is led out from the bottom of the speed reducer, and a driving mechanism for driving the second input shaft to rotate is arranged on one side of the second input shaft.

Preferably, the speed reducer is fixed on a sliding seat, the sliding seat is connected with the sliding seat in a sliding manner, a support is fixed at the front end of the sliding seat, an adjusting seat is fixed at the upper part of the front end of the support, and the two scissor arms are coaxially hinged below the adjusting seat.

Preferably, the rear ends of the sliding seat and the sliding seat are bent downwards to form a bent part, and the bent part of the sliding seat are arranged in a front-back opposite mode; two overlapped adjusting knobs are arranged side by side in the left and right directions of the bent part of the sliding seat, and one of the overlapped adjusting knobs is in threaded connection with the bent part of the sliding seat after sequentially penetrating through the bent parts of the sliding seat and the sliding seat; the other overlapped adjusting knob passes through the bent part of the sliding seat and is connected with the thread.

Preferably, the bottom of the sliding frame is further provided with two locking knobs, screw rods of the two locking knobs penetrate through a bottom plate of the sliding frame upwards and then are in threaded connection with the sliding frame, and the tops of the screw rods of the locking knobs are in contact with the sliding frame.

Preferably, the link mechanism comprises two transverse connecting sleeves, the two transverse connecting sleeves are respectively sleeved on outer rings of the two output shafts through corresponding expansion sleeves, an eccentric shaft is respectively fixed at the outer ends of the transverse connecting sleeves at two sides, connecting rods are respectively sleeved on the outer rings of the eccentric shafts at two sides, a connecting block is respectively fixed at the side part of each of the two scissor arms, and the two connecting rods respectively extend to the connecting blocks at the corresponding sides and are hinged with the corresponding connecting blocks.

Preferably, a push rod is eccentrically arranged at the side part of the second input shaft, the driving mechanism is a driving cylinder, and the driving cylinder is positioned at one side of the push rod and pushes the push rod to rotate by taking the second input shaft as a shaft.

Preferably, a mounting plate is horizontally fixed at the bottom of the speed reducer, a longitudinal coupling sleeve is sleeved on the second input shaft after the second input shaft downwards penetrates through the mounting plate, and the ejector rod is vertically fixed on the lower end face of the longitudinal coupling sleeve.

Preferably, the electromagnetic valve connected with the driving cylinder is arranged, a normally open air outlet of the electromagnetic valve is communicated with the rodless cavity of the driving cylinder, and a normally closed air outlet of the electromagnetic valve is communicated with the rod cavity of the driving cylinder.

Preferably, the outer surfaces of the two transverse coupling sleeves are axially provided with positioning grooves, the positioning grooves and the eccentric shaft are arranged in a straight angle, the rear end surface of the speed reducer is further provided with an alignment plate, the left side and the right side of the alignment plate extend to the rear of the transverse coupling sleeves on the two sides, the extending parts on the left side and the right side of the alignment plate are respectively and horizontally provided with long-strip-shaped alignment holes, the alignment holes are through holes penetrating through the alignment plate, and the alignment holes on the two sides of the alignment plate are respectively and forwardly and backwardly opposite to the positioning grooves on the surfaces of the transverse coupling sleeves on the two sides.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. in the single-electric double-drive shearing system of the feeding machine, the servo motor drives the two shear arms to swing through the speed reducer with the double output shafts respectively, so that the problems of unstable system and poor shearing precision in a single servo motor driving mode are solved. Meanwhile, when the adjusting is carried out, the adjusting is carried out on only one reference (speed reducer), and compared with a mode that two driving systems are required to be adjusted in a double-servo material shearing system, the adjusting device is more beneficial to the accurate adjustment of two scissor arms, and the operation precision is higher.

2. In the single-electric double-drive shearing system of the feeder, the speed reducer is provided with two input shafts, and the driving cylinder drives the second input shaft to rotate by a certain angle when the power is suddenly cut off, so that the two shear arms are separated, and the molten glass material liquid is ensured to flow into the waste material tank, thereby avoiding the danger caused by the accumulation of the glass raw materials in a molten state on the shear blade when the power is suddenly cut off.

3. By rotating the two overlapping adjustment knobs, precise adjustment of the front-to-back relative position between the slide and the carriage can be achieved.

4. The rear end face of the speed reducer is provided with an alignment plate, alignment holes on two sides of the alignment plate respectively correspond to positioning grooves on the surfaces of the transverse coupling sleeves on two sides in a front-back mode, accurate positioning of eccentric shafts on two sides is achieved when the transverse coupling sleeves are installed, and the action consistency of the two shear arms is guaranteed.

Drawings

Fig. 1 is a left side view of a single-electric double-drive material shearing system of a feeding machine.

Fig. 2 is a top view of the scissor blade of fig. 1 in a closed position.

Fig. 3 is a top view of the scissor blade of fig. 1 in an open position.

Fig. 4 is a bottom view of fig. 1.

FIG. 5 isbase:Sub>A sectional view taken along line A-A in FIG. 1.

Wherein: 1. servo motor 2, speed reducer 3, longitudinal adjusting rod 4, support 5, adjusting seat 6, transverse adjusting rod 7, connecting block 8, scissor arm 9, scissor seat 10, scissor blade 11, tension adjusting plate 12, connecting rod 13, carriage 14, tension adjusting knob 15, driving cylinder 16, ejector head 17, ejector rod 18, expansion sleeve 19, longitudinal coupling sleeve 20, eccentric shaft 21, overlapping adjusting knob 22, sliding seat 23, aligning plate 24, transverse coupling sleeve 25, pivot sleeve 26, locking nut 27, pivot 28, mounting plate 29, electromagnetic valve 30 and locking knob.

Detailed Description

Fig. 1 to 5 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 5.

As shown in fig. 1, a single-electric double-drive material shearing system (hereinafter referred to as a material shearing system) of a feeding machine includes a servo motor 1, wherein the servo motor 1 is vertically arranged, and a motor shaft of the servo motor is vertically downward. A speed reducer 2 is arranged below the servo motor 1, and the servo motor 1 is in butt joint with a first input shaft at the top of the speed reducer 2. In the material shearing system, one end of the servo motor 1 is defined as the rear end of the material shearing system.

Referring to fig. 4, the reducer 2 is fixed on the surface of the sliding base 22, the sliding base 13 is further arranged below the sliding base 22, and the edges of the sliding base 22 and the sliding base 13 are slidably connected in a dovetail groove manner, so that the sliding base 22 and the sliding base 13 can slide back and forth in the front and back direction, namely, the reducer 2 can be adjusted in the front and back direction in the material shearing system. The rear ends of the slide 22 and the carriage 13 are bent downward to form a bent portion, and the bent portion of the rear end of the slide 22 is located on the rear side of the bent portion of the rear end of the carriage 13 and is arranged opposite to the bent portion of the rear end of the carriage 13 in the front-rear direction.

Two overlapped adjusting knobs 21 are arranged side by side in the left and right directions of the bent part at the rear end of the sliding seat 22, wherein one overlapped adjusting knob 21 sequentially penetrates through the bent part of the sliding seat 22 and the bent part of the sliding frame 13 from back to front and then is in threaded connection with the bent part of the sliding frame 13; the other overlapped adjusting knob 21 passes through the bent part of the sliding seat 22 from back to front and then abuts against the rear surface of the bent part of the sliding seat 13, and the overlapped adjusting knob 21 is connected with the bent part of the sliding seat 22 in a threaded mode. By turning the two overlap adjustment knobs 21, a precise adjustment of the front-to-back relative position between the slide 22 and the carriage 13 can be achieved.

An opening is provided at the center of the carriage 13, and an opening at the bottom of the decelerator 2, which passes through the center of the carriage 13, is led out from the bottom of the carriage 13. Two locking knobs 30 are further arranged at the bottom of the sliding frame 13, the two locking knobs 30 are arranged diagonally relative to the opening at the bottom of the sliding frame 13 and are respectively positioned at the outer sides of the opening at the bottom of the sliding frame 13, screw rods of the two locking knobs 30 penetrate through a bottom plate of the sliding frame 13 upwards and are in threaded connection with the sliding frame 13, and the top of the screw rods of the locking knobs 30 abuts against the bottom of the sliding seat 22, so that the locking of the relative positions of the sliding frame 13 and the sliding seat 22 is realized.

The front end at balladeur train 13 is fixed with support 4, front side upper portion at support 4 is fixed with adjusting seat 5, in the feeder, adjusting seat 5 is installed on the peripheral cambered surface of the material basin iron-clad of feeder or plane, top at adjusting seat 5 is provided with vertical adjusting rod 3, left side at adjusting seat 5 is provided with horizontal adjusting rod 6, realize this whole horizontal and vertical movement of shearing mechanism through vertical adjusting rod 3 and horizontal adjusting rod 6, realize the horizontal movement at scissors blade 10 shearing center, and scissors blade 10 shears planar reciprocating.

Referring to fig. 2 to 3, a pivot sleeve 25 is vertically fixed in the middle of the adjusting seat 5 through a lock nut 26, a pivot 27 is installed in the pivot sleeve 25 from the bottom of the pivot sleeve 25, the rear ends of two scissor arms 8 attached up and down are respectively sleeved on the pivot sleeve 25 and the outer ring of the pivot 27, the front ends of the scissor arms 8 extend forward to the front end of the shearing system, scissor seats 9 are respectively fixed at the front ends of the two scissor arms 8, scissor blades 10 are respectively fixed on the inner sides of the two scissor seats 9, and scissor mouths of the scissor blades 10 are arranged oppositely.

A strip-shaped tension adjusting plate 11 is fixed to the bottom of the pivot 27, and the upper surface of the tension adjusting plate 11 is attached to the scissor arm 8 located below. The tension adjusting plate extends backwards to the lower portion of the support 4, a tension adjusting knob 14 is further arranged below the rear side of the tension adjusting plate 11, a screw of the tension adjusting knob 14 penetrates through the tension adjusting plate 11 upwards and then is screwed into the bottom of the support 4, the rear end of the tension adjusting plate 11 is connected with the bottom of the support 4, the height of the front end of the tension adjusting plate 11 can be achieved by rotating the tension adjusting knob 14, the attaching strength of the two scissor arms 8 is further achieved, and therefore tension adjustment between the two groups of scissor blades 10 is achieved.

The speed reducer 2 comprises a speed reduction box and a gear box, a planetary speed reduction assembly is arranged in the speed reduction box, an input shaft of the planetary speed reduction assembly is the first input shaft, and the first input shaft is connected with a motor shaft of the servo motor 1 after being led out from the top of the speed reduction box. The gear box is fixed on the lower part of the reduction gearbox, and a first bevel gear is coaxially fixed after an output shaft of the planetary reduction assembly enters the gear box. A through shaft is arranged in the gear box, a second bevel gear meshed with the first bevel gear is coaxially fixed on the through shaft, and two coaxial ends of the through shaft are respectively taken as output shafts of the speed reducer 2 and horizontally led out from the left side and the right side of the gear box. The second input shaft enters the gear box from bottom to top, and a third bevel gear meshed with the second bevel gear is arranged at the top of the second input shaft.

The outer rings of two output shafts of the speed reducer 2 are respectively sleeved with a transverse coupling sleeve 24 through an expansion sleeve 18, the outer ends of the transverse coupling sleeves 24 at two sides are respectively fixed with an eccentric shaft 20, the outer rings of the eccentric shafts 20 at two sides are respectively sleeved with a connecting rod 12, the lateral parts of the rear ends of the two scissor arms 8 are respectively fixed with a connecting block 7, and the front ends of the two connecting rods 12 respectively extend to the connecting block 7 at the corresponding side and are hinged with the corresponding connecting block 7.

The outer surface of each transverse coupling sleeve 24 is axially provided with a positioning groove which forms an included angle of 180 degrees with the eccentric shaft 20 fixed at the end thereof. As shown in fig. 5, an alignment plate 23 is further disposed on the rear end surface of the speed reducer 2, the left and right sides of the alignment plate 23 extend to the rear of the lateral coupling sleeves 24 on the two sides, elongated alignment holes are horizontally formed in the extending portions of the left and right sides of the alignment plate 23, the alignment holes are through holes penetrating through the alignment plate 23, the alignment holes on the two sides of the alignment plate 23 respectively correspond to the positioning grooves on the surfaces of the lateral coupling sleeves 24 on the two sides in the front-back direction, and when the lateral coupling sleeves 24 are mounted, the positioning grooves on the surfaces of the lateral coupling sleeves 24 are fixed right opposite to the alignment holes on the alignment plate 23 on the corresponding side, so that the eccentric shafts 20 on the two sides are accurately positioned, and the consistency of the motions of the two scissor arms 8 is ensured.

A mounting plate 28 is horizontally arranged at the bottom opening of the carriage 13, an opening opposite to the bottom opening of the carriage 13 is formed on the mounting plate 28, and a second input shaft of the speed reducer 2 simultaneously passes through the openings of the carriage 13 and the mounting plate 28. An outer ring of a second input shaft of the speed reducer 2 is sleeved with a longitudinal coupling sleeve 19 through an expansion sleeve 18, and a top rod 17 is vertically fixed on one side of the lower surface of the longitudinal coupling sleeve 19.

A driving cylinder 15 with a single output shaft is arranged on the lower surface of the mounting plate 28, a top head 16 is fixed at the end part of a piston shaft of the driving cylinder 15, the top head 17 is positioned on the traveling track of the top head 16, and when the piston shaft of the driving cylinder 15 is in a retraction state, the top head 16 and the top head 17 are arranged at intervals. The electromagnetic valve 29 connected with the driving cylinder 15 is arranged, a normally open air outlet of the electromagnetic valve 29 is communicated with a rodless cavity of the driving cylinder 15, a normally closed air outlet of the electromagnetic valve 29 is communicated with a rod cavity of the driving cylinder 15, when the material shearing system normally works, the electromagnetic valve 29 is in an electrified state, an external air source is connected into the rod cavity of the driving cylinder 15 through the electromagnetic valve 29 at the moment, and a piston rod of the driving cylinder 15 is always in a retraction state.

The specific working process and working principle are as follows:

under normal operating condition, servo motor 1 circular telegram back drives reduction gear 2 and rotates, and in this shearing system, reduction ratio of reduction gear 2 preferredly sets up to 5, and the transmission form is one-level planetary gear transmission. The planetary gear speed reducing assembly is transmitted to two output shafts of the same shaft through a bevel gear, the two output shafts on the left side and the right side of the speed reducer 2 respectively drive the connecting rods 12 to reciprocate synchronously through the eccentric shafts 20 on the two sides, the two connecting rods 12 respectively drive the corresponding shear arms 8 to open and close in the reciprocating motion process, at the moment, the shear arms 8 use the pivot sleeves 25 as shafts to swing oppositely at an angle of 20-25 degrees, the two shear arms 8 drive the shear blades 10 on the two sides to complete the shearing action while swinging oppositely, and the shear blades 10 on the two sides are tightly attached and overlapped by 1-3 mm in the shearing process, so that the material shearing is completed.

When the eccentric center of the eccentric shaft 20 is farthest from the side of the shear blade 10, namely the connecting rod 12 is farthest from the shear blade 10, the shear arm 8 is opened by 20-25 degrees in a single side. At this time, the positioning grooves of the lateral coupling sleeves 24 are opposite to the aligning holes on both sides of the aligning plate 23, and the position of the lateral coupling sleeves 24 can be determined by the aligning plate 23, and the state at this time is defined as the initial position of the present trimming system, which is shown in fig. 3.

When the servo motor 1 rotates about 2.5 circles from the initial position, the eccentric axis 20 is closest to the scissor blade 10, the pushed connecting rod 12 is also closest to the scissor blade 10, and the scissor blades 10 are tightly attached and overlapped by 1-3 mm, namely the scissor closed state, which is shown in fig. 2.

When the scissor arm 8 is in a closed state, a connecting line of the center of the ejector rod 17 and the center of the second input shaft of the speed reducer 2 is just vertical to the center of the piston rod of the driving cylinder 15, and the ejector rod 17 is within the range of the running track of the ejector head 16 within the range of +/-60 degrees of the rotation of the ejector rod 17 by taking the position as a reference. When the push rod 17 is in the above-mentioned +/-60 DEG rotation range, the scissor arm 8 is opened by about 7 DEG-9 DEG unilaterally.

When the material shearing system normally works, the electromagnetic valve 29 is electrified, an external air source enters a rod cavity of the driving air cylinder 15 through the electromagnetic valve 29, and a piston rod of the driving air cylinder retracts. When the system is normally powered off or is powered off suddenly, the electromagnetic valve 29 is powered off and then acts, an external air source enters a rodless cavity of the driving cylinder 15, a piston rod of the driving cylinder 15 extends out, the ejector head 16 fixed at the end part of the piston rod outputs along with the piston rod, and the ejector rod 17 is pushed to leave the angle of +/-60 degrees after being contacted with the ejector head 16 and the ejector rod 17, so that the two shear arms 8 are opened for a certain distance, molten glass feed liquid is ensured to flow into the waste material groove, and therefore the danger caused by the accumulation of glass raw materials in a molten state on the shear blades 10 when the system is powered off suddenly is avoided.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides a single electric double-drive shearing system of feeder, includes servo motor (1) and reduction gear (2), and the motor shaft of servo motor (1) docks with the input shaft of reduction gear (2), and servo motor (1) drives scissors arm (8) motion through reduction gear (2), its characterized in that: the output shafts of the speed reducer (2) are respectively led out from two sides of the speed reducer (2), the two output shafts are respectively connected with the two scissor arms (8) through a connecting rod mechanism, a second input shaft is led out from the bottom of the speed reducer (2), and a driving mechanism for driving the second input shaft to rotate is arranged on one side of the second input shaft.

2. The single electric double-drive shearing system of the supply machine as claimed in claim 1, characterized in that: the speed reducer (2) is fixed on the sliding seat (22), the sliding seat (22) is in sliding connection with the sliding frame (13), the support (4) is fixed at the front end of the sliding frame (13), the adjusting seat (5) is fixed at the upper part of the front end of the support (4), and the two scissor arms (8) are coaxially hinged below the adjusting seat (5).

3. The single-electric double-drive shearing system of the supply machine of claim 2, characterized in that: the rear ends of the sliding seat (22) and the sliding frame (13) are bent downwards to form a bent part, and the bent part of the sliding frame (13) and the bent part of the sliding seat (22) are arranged in a front-back opposite mode; two overlapped adjusting knobs (21) are arranged side by side in the left and right directions of the bent part of the sliding seat (22), and one of the overlapped adjusting knobs (21) is in threaded connection with the bent part of the sliding seat (22) and the bent part of the sliding frame (13) after sequentially penetrating through the bent parts of the sliding seat (22) and the sliding frame (13); the other overlapping adjusting knob (21) passes through the bending part of the sliding seat (22) and is connected with the screw thread.

4. The single-electric double-drive shearing system of the supply machine of claim 2, characterized in that: the bottom of the sliding frame (13) is also provided with two locking knobs (30), screw rods of the two locking knobs (30) penetrate through a bottom plate of the sliding frame (13) upwards and then are in threaded connection with the sliding frame (13), and the tops of the screw rods of the locking knobs (30) are in contact with the sliding base (22).

5. The single electric double-drive shearing system of the supply machine as claimed in claim 1, characterized in that: the connecting rod mechanism comprises two transverse connecting sleeves (24), the two transverse connecting sleeves (24) are respectively sleeved on the outer rings of two output shafts through corresponding expansion sleeves (18), an eccentric shaft (20) is respectively fixed at the outer ends of the transverse connecting sleeves (24) at two sides, connecting rods (12) are respectively sleeved on the outer rings of the eccentric shafts (20) at two sides, connecting blocks (7) are respectively fixed on the side portions of the two scissor arms (8), and the two connecting rods (12) respectively extend to the connecting blocks (7) at the corresponding sides and are hinged with the corresponding connecting blocks (7).

6. The single-electric double-drive shearing system of the supply machine as claimed in claim 1, wherein: and a push rod (17) is eccentrically arranged on the side part of the second input shaft, the driving mechanism is a driving cylinder (15), and the driving cylinder (15) is positioned on one side of the push rod (17) and pushes the push rod (17) to rotate by taking the second input shaft as a shaft.

7. The single-electric double-drive shearing system of the supply machine of claim 6, characterized in that: a mounting plate (28) is horizontally fixed at the bottom of the speed reducer (2), a longitudinal coupling sleeve (19) is sleeved on the second input shaft after the second input shaft downwards penetrates through the mounting plate (28), and the ejector rod (17) is vertically fixed on the lower end face of the longitudinal coupling sleeve (19).

8. The single-electric double-drive shearing system of the supply machine of claim 6, characterized in that: the electromagnetic valve (29) connected with the driving cylinder (15) is arranged, a normally open air outlet of the electromagnetic valve (29) is communicated with a rodless cavity of the driving cylinder (15), and a normally closed air outlet of the electromagnetic valve (29) is communicated with a rod cavity of the driving cylinder (15).

9. The single electric double-drive shearing system of the supply machine as defined in claim 5, wherein: the outer surfaces of the two transverse coupling sleeves (24) are axially provided with positioning grooves, the positioning grooves and the eccentric shaft (20) are arranged at a flat angle, the rear end face of the speed reducer (2) is further provided with an alignment plate (23), the left side and the right side of the alignment plate (23) extend to the rear of the transverse coupling sleeves (24) at the two sides, the extending parts at the left side and the right side of the alignment plate (23) are respectively and horizontally provided with long-strip-shaped alignment holes, the alignment holes are through holes penetrating through the alignment plate (23), and the alignment holes at the two sides of the alignment plate (23) are simultaneously and respectively opposite to the positioning grooves on the surfaces of the transverse coupling sleeves (24) at the two sides.

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