CN114951401A

CN114951401A - Rib punching device

Info

Publication number: CN114951401A
Application number: CN202210919033.0A
Authority: CN
Inventors: 张�成; 孙华山
Original assignee: Changzhou Win For Automation Technology Co ltd
Current assignee: Changzhou Win For Automation Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-08-30
Anticipated expiration: 2042-08-02
Also published as: CN114951401B

Abstract

The invention relates to the technical field of motor processing, in particular to a rib punching device which is provided with a workbench, wherein a feeding mechanism, a punching mechanism and a blanking mechanism are distributed on the workbench, the feeding mechanism and the blanking mechanism are arranged at two ends of the punching mechanism, and bar materials among the feeding mechanism, the punching mechanism and the blanking mechanism are transferred through a conveying mechanism; the invention provides a rib punching device which is full-automatic, high in working efficiency, high in rib punching precision and high in safety coefficient.

Description

Rib punching device

Technical Field

The invention relates to the technical field of motor processing, in particular to a rib punching device.

Background

A motor shaft rib punching process is mainly used in the field of rotor production of motors and belongs to a very precise and indispensable production procedure in the motor machining process. The punching ribs are divided into 4 ribs, 8 ribs and 12 ribs according to the torque force. The method has important control on the dimensions such as the outer diameter dimension, the coaxiality jumping dimension, the angle indexing dimension and the like after the rib punching, and the required motor shaft rib punching product has extremely high precision.

At present, the motor shaft is punched to form ribs mainly through a punching machine, a worker places the motor shaft one by one below the punching machine to fix the motor shaft, then the motor shaft is directly punched through the punching machine, a punching tool forms convex ribs after punching on the motor shaft, and a bar is taken out by the worker after the rib punching process is completed. Because put into the motor shaft and take out the punching machine by manual operation, consequently lead to work efficiency low, the precision of punching the muscle is low, has the potential safety hazard moreover.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings in the prior art and provide the rib punching device which is full-automatic, high in working efficiency, high in rib punching precision and high in safety coefficient.

The technical scheme for realizing the purpose of the invention is as follows: the utility model provides a rib punching device, has the workstation, distribution feed mechanism, punching press mechanism and unloading mechanism on the workstation, the both ends at punching press mechanism are established to feed mechanism and unloading mechanism, the transfer of bar between feed mechanism, punching press mechanism and the unloading mechanism is realized through conveying mechanism.

Further, punching press mechanism includes mount, punching muscle subassembly and servo electronic jar, the punching muscle subassembly is installed in the bottom of mount, servo electronic jar is installed at the top of mount, servo electronic jar's output acts on the punching muscle subassembly.

Furthermore, the punching bar component comprises an upper die frame, a lower die frame and a guide component, the four corners of the upper die frame and the four corners of the lower die frame are connected through the guide component, bases are respectively installed at the middle parts of the opposite surfaces of the upper die frame and the lower die frame, knife holders are respectively installed at the middle parts of the opposite surfaces of the bases, a material supporting plate is sleeved outside the knife holders, the material supporting plate is movably connected with the bases, cutters are respectively installed at the middle parts of the opposite surfaces of the knife holders, and limiting grooves are respectively formed in the middle parts of the opposite surfaces of the material supporting plates.

Further, the middle of blade holder symmetry is equipped with a pair of recess, the cutter is installed respectively in the recess, still be equipped with the briquetting in the recess and be used for supporting tight cutter, the both ends of blade holder are equipped with the screw hole with the recess intercommunication respectively, screw hole female connection has adjusting screw, the reference plate is installed to the rear side of blade holder.

Further, conveying mechanism includes duplex position, presss from both sides the material subassembly and gets the material subassembly, duplex position and workstation sliding connection, press from both sides the material subassembly and get the material subassembly respectively with duplex position sliding connection.

Further, press from both sides the material subassembly and include mount pad, chuck and servo motor, the chuck is installed on the mount pad, the chuck is driven by servo motor, install the clamping jaw on the chuck, it wears to be equipped with the traveller to slide in the mount pad, the bottom of traveller is through first slider and duplex position sliding connection, be equipped with first spring between mount pad and the first slider, the traveller is located to first spring housing.

Furthermore, the material taking assembly comprises a fixed seat and a gripper, the gripper is installed at the top end of the fixed seat, and the bottom end of the fixed seat is connected with the double-station sliding device through a second sliding block.

Furthermore, the left end of the mounting seat is provided with a jackscrew, and the front side of the upper die frame is provided with a lever.

Further, feed mechanism includes U type seat, be equipped with the flitch of putting, go up the flitch, arrange flitch and locating plate in the U type seat, the middle part sliding connection of going up flitch and U type seat, the bottom of going up the flitch is connected with first cylinder, the left end and the U type seat of flitch are articulated, the right-hand member and the second cylinder of flitch are articulated, it establishes between flitch and locating plate to arrange the flitch, the left end of arranging the flitch is connected with the third cylinder, realizes reciprocating of row flitch, the rear side of locating plate is equipped with the impeller, it sets up with row flitch slope to arrange the flitch.

Further, unloading mechanism includes the stripper and with the stripper left end lapped receipts material frame, the top of stripper left end is rotated and is connected with the striker plate, the stripper slope sets up.

After the technical scheme is adopted, the invention has the following positive effects:

(1) according to the invention, through the arrangement of the feeding mechanism, the stamping mechanism, the blanking mechanism and the conveying mechanism, the transfer of the bars among the feeding mechanism, the stamping mechanism and the blanking mechanism can be realized through the conveying mechanism, the operation of workers is not required, the working efficiency is improved, the rib punching precision is high, and the safety coefficient is high;

(2) according to the bar punching machine, the bar punching at any position on the bar can be realized only by moving the clamping component through the arrangement of the clamping component, and when the bar needs to punch 8 ribs or 12 ribs, the bar punching can be realized only by rotating the servo motor, so that the bar punching machine is convenient and quick, and the bar punching precision is further improved.

Drawings

In order that the present disclosure may be more readily and clearly understood, the following detailed description of the present disclosure is provided in connection with specific embodiments thereof and with the accompanying drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a stamping mechanism of the present invention;

FIG. 3 is a schematic view of a punch assembly of the present invention;

FIG. 4 is a schematic view of a datum plate according to the present invention;

FIG. 5 is a schematic view of a tool holder according to the present invention;

FIG. 6 is a schematic view of the delivery mechanism of the present invention;

FIG. 7 is a schematic view of a clamping assembly of the present invention;

FIG. 8 is a schematic view of a take-off assembly of the present invention;

FIG. 9 is a schematic illustration of a fourth cylinder of the present invention;

FIG. 10 is a schematic view of a loading mechanism of the present invention;

FIG. 11 is a schematic view of a second cylinder of the present invention;

FIG. 12 is a schematic view of a third cylinder of the present invention;

FIG. 13 is a schematic view of a blanking mechanism of the present invention;

FIG. 14 is a schematic view of an upper frame of the present invention.

In the figure: the feeding mechanism 1, the U-shaped seat 1a, the discharging plate 1b, the feeding plate 1c, the discharging plate 1d, the positioning plate 1e, the first cylinder 1f, the second cylinder 1g, the third cylinder 1h, the pusher 1i, the shaft 1j, the guide rail 1k, the slide block 1l, the step surface 1m, the material pressing block 1n, the stamping mechanism 2, the fixing frame 2a, the punching rib component 2b, the upper die frame 2ba, the lower die frame 2bb, the guide component 2bc, the base 2bd, the knife base 2be, the material supporting plate 2bf, the knife 2bg, the limiting groove 2bh, the groove 2bi, the pressing block 2bj, the threaded hole 2bk, the adjusting screw 2bl, the reference plate 2bm, the sliding column 2bn, the sliding hole 2bo, the second spring 2bp, the column pin 2bq, the column hole 2br, the sensor 2bs, the servo electric cylinder 2c, the pressure sensor 2d, the discharging mechanism 3, the discharging plate 3a, the material receiving frame 3b, the material blocking plate 3c, the conveying mechanism 4c, the positioning plate 1e, the step surface 1m, the pressing block surface 1b, the pressing block surface 2b, the pressing surface 2b, the pressing surface 2b surface, the pressing surface, the device comprises a double station 4a, a material clamping component 4b, a mounting seat 4ba, a chuck 4bb, a servo motor 4bc, a clamping jaw 4bd, a sliding column 4be, a first sliding block 4bf, a first spring 4bg, a crossed roller bearing 4bh, a belt wheel 4bi, a belt 4bj, a material taking component 4c, a fixed seat 4ca, a gripper 4cb, a second sliding block 4cc, a sliding rail 4d, a fourth air cylinder 4e, a jackscrew 5, a lever 6 and an upper frame 7.

Detailed Description

As shown in figure 1, a rib punching device, the workbench is provided, the feeding mechanism 1 is distributed on the workbench, the punching mechanism 2 and the blanking mechanism 3 are arranged on the workbench, the feeding mechanism 1 and the blanking mechanism 3 are arranged at two ends of the punching mechanism 2, the feeding mechanism 1, the transfer of bars between the punching mechanism 2 and the blanking mechanism 3 is realized through the conveying mechanism 4, the feeding mechanism 1, the punching mechanism 2, the blanking mechanism 3 and the conveying mechanism 4 are arranged, the transfer of bars between the feeding mechanism 1, the punching mechanism 2 and the blanking mechanism 3 can be realized through the conveying mechanism 4, the operation of workers is not needed, the working efficiency is improved, the rib punching precision is high, and the safety factor is high.

As shown in fig. 2 to 5, the stamping mechanism 2 includes a fixing frame 2a, a punching assembly 2b and a servo electric cylinder 2c, the bottom of the fixing frame 2a is fixed on the workbench, the punching assembly 2b is installed in the middle of the bottom of the fixing frame 2a, the servo electric cylinder 2c is installed in the middle of the top of the fixing frame 2a, and the output end of the servo electric cylinder 2c passes through the top of the fixing frame 2a and acts on the punching assembly 2 b. Specifically, the punching rib assembly 2b comprises an upper die frame 2ba, a lower die frame 2bb and a guide assembly 2bc, the top surface of the upper die frame 2ba is connected with the output end of a servo electric cylinder 2c through a pressure sensor 2d, the lower die frame 2bb is installed at the bottom of a fixed frame 2a, the four corner ends of the upper die frame 2ba and the lower die frame 2bb are movably connected through the guide assembly 2bc, the guide assembly 2bc comprises a guide pillar and a guide sleeve, the description is not excessive at this point for the prior art, the lifting of the upper die frame 2ba is guided through the arrangement of the guide assembly 2bc, and the deviation of the upper die frame 2ba in the lifting process is prevented. Go up the middle part of die carrier 2ba and lower die carrier 2bb opposite face and install base 2bd respectively, blade holder 2be is installed respectively at the middle part of base 2bd opposite face, thereby blade holder 2be is wholeness and the uniformity of integrated into one piece assurance blade holder 2be, blade holder 2be overcoat has the support flitch 2bf, support flitch 2bf is used for the bearing bar, the middle part of support flitch 2bf opposite face is equipped with spacing groove 2bh respectively, spacing groove 2bh carries on spacingly to the bar of bearing, support flitch 2bf and base 2bd swing joint. Specifically, four corner ends of the base 2bd are respectively provided with a sliding column 2bn, four corner ends of the material supporting plate 2bf are respectively provided with a sliding hole 2bo, the sliding column 2bn is in sliding fit with the sliding hole 2bo, a second spring 2bp is arranged between the base 2bd and the material supporting plate 2bf, and the sliding column 2bn is sleeved with the second spring 2 bp. Cutter 2bg is installed respectively in the middle part of blade holder 2be opposite face, and cutter 2bg is the white steel sword, and the length of cutter 2bg is unanimous and the tool bit of cutter 2bg is 90. In an initial state, the distance between the upper cutter 2bg cutter head and the lower cutter 2bg cutter head is greater than the distance between the bottom surface of the upper retainer plate 2bf and the top surface of the lower retainer plate 2bf, and in a stamping state, the retainer plate 2bf can move towards the base 2bd along the slide column 2bn, so that the cutter head of the cutter 2bg is in contact with the bar stock. Specifically, the middle part symmetry of blade holder 2be is equipped with a pair of recess 2bi, and cutter 2bg is installed respectively in recess 2bi, still is equipped with briquetting 2bj in the recess 2bi and is used for supporting tight cutter 2bg, and the both ends of blade holder 2be are equipped with respectively the screw hole 2bk with recess 2bi intercommunication, and screw hole 2bk female connection has adjusting screw 2bl, and adjusting screw 2bl is used for supporting tight briquetting 2 bj. The rear side of the tool apron 2be is provided with a reference plate 2bm, and the reference plate 2bm is arranged to facilitate alignment of the tool 2bg during installation. When the cutter 2bg is installed, the cutter 2bg and the pressing block 2bj are placed in the groove 2bi, the rear side faces of the cutter 2bg and the pressing block 2bj are aligned to the datum plate 2bm, and then the adjusting screw 2bl is rotated in the threaded hole 2bk, so that the adjusting screw 2bl extends into the groove 2bi to push the pressing block 2bj, and the pressing and fixing of the cutter 2bg are achieved. In order to ensure that the upper knife holder 2ba is aligned with the upper knife holder 2be and the lower knife holder 2be in the pressing-down process, two ends of the top surface of the lower knife holder 2be are respectively provided with a pin 2bq, two ends of the bottom surface of the corresponding upper knife holder 2be are respectively provided with a column hole 2br, and in the pressing-down process of the upper die holder 2ba, the pin 2bq is inserted into the column hole 2br to realize the guiding function. In addition, sensor 2bs is all installed to the leading flank of blade holder 2be, and sensor 2 bs's setting can detect on the one hand and press from both sides the material subassembly 4b and whether press from both sides the bar material in the spacing groove 2bh of holding in the palm flitch 2bf, and on the other hand can detect and get material subassembly 4c and whether press from both sides away the bar material in the spacing groove 2bh of holding in the flitch 2 bf. In addition, the servo electric cylinder 2c can feed back the size of an opening between the upper cutter 2bg and the lower cutter 2bg in real time, and the servo electric cylinder 2c drives the upper die frame 2ba to be pressed down by a constant force, so that the effect of punching ribs is ensured. Meanwhile, the servo electric cylinder 2c has a self-learning function, collects punching data in the punching process to form a database, and guides the later punching according to the database, so that the punching efficiency and precision are further improved.

As shown in fig. 6 to 9, the conveying mechanism 4 includes a double station 4a, a material clamping assembly 4b and a material taking assembly 4c, the double station 4a is slidably connected to the workbench, and the material clamping assembly 4b and the material taking assembly 4c are slidably connected to the double station 4a respectively. Specifically, the double station 4a is connected with the workbench in a sliding mode through a sliding rail 4d arranged on the workbench, and the left and right movement of the double station 4a is achieved through a fourth cylinder 4e below the workbench. Press from both sides material subassembly 4b including mount pad 4ba, chuck 4bb and servo motor 4bc, chuck 4bb installs on mount pad 4ba, chuck 4bb is driven by servo motor 4bc, clamping jaw 4bd is installed to the front side of chuck 4bb, it wears to be equipped with traveller 4be to slide in mount pad 4ba, traveller 4 be's bottom is through first slider 4bf and duplex position 4a sliding connection, be equipped with first spring 4bg between mount pad 4ba and the first slider 4bf, traveller 4be is located to first spring 4bg cover. Specifically, the chuck 4bb is connected with the mounting seat 4ba through a rotating shaft, the rotating shaft penetrates through the mounting seat 4ba and is in running fit with the mounting seat 4ba through a crossed roller bearing 4bh, the rotating shaft does not incline in the rotating process due to the arrangement of the crossed roller bearing 4bh, a belt wheel 4bi is installed at the end part of the rotating shaft, away from the chuck 4bb, and the output end of the servo motor 4bc, and a belt 4bj is sleeved on the belt wheel 4 bi. Through the setting of pressing from both sides material subassembly 4b, only need remove and press from both sides material subassembly 4b and can realize the punching rib at any position on the bar, when 8 muscle or 12 muscle of bar needs punching press moreover, only need servo motor 4bc to rotate and can realize convenient and fast, the punching rib precision further obtains improving. The material taking assembly 4c comprises a fixed seat 4ca and a gripper 4cb, the gripper 4cb is mounted at the top end of the fixed seat 4ca, and the bottom end of the fixed seat 4ca is in sliding connection with the double station 4a through a second sliding block 4 cc.

As shown in fig. 9-12, the feeding mechanism 1 includes a U-shaped seat 1a, the bottom of the U-shaped seat 1a is fixed on the workbench, a discharging plate 1b, a feeding plate 1c, a discharging plate 1d and a positioning plate 1e are arranged in the U-shaped seat 1a, the discharging plate 1b and the discharging plate 1d are both arranged obliquely towards the lower left, the feeding plate 1c is connected with the middle of the U-shaped seat 1a in a sliding manner, the bottom end of the feeding plate 1c is connected with a first cylinder 1f, the first cylinder 1f is arranged below the workbench, the left end of the discharging plate 1b is hinged with the U-shaped seat 1a through a shaft 1j, the right end of the discharging plate 1b is hinged with the output end of a second cylinder 1g, the bottom of the second cylinder 1g is hinged with the bottom of the U-shaped seat 1a, in an initial state, the top surface of the feeding plate 1c is flush with the left end of the discharging plate 1b, the discharging plate 1d is arranged between the feeding plate 1c and the positioning plate 1e, the left end of the discharging plate 1d is connected with a third cylinder 1h, so that the discharging plate 1d can move up and down. In order to improve the stability of the up-and-down movement of the discharging plate 1d, two guide rails 1k are arranged on the right side surface of the positioning plate 1e in parallel, two sliding blocks 1l are installed on the bottom surface of the left end of the discharging plate 1d, and the sliding blocks 1l are connected with the guide rails 1k in a sliding mode. The rear side of locating plate 1e is equipped with impeller 1i, and impeller 1i can be cylinder or telescopic link, and the top of locating plate 1e is equipped with the step face 1 m. The material pressing block 1n is arranged above the material discharging plate 1d to ensure single-layer arrangement of the bars in the material discharging plate 1d, and the top surface of the right end of the material discharging plate 1d is provided with a sensor (not shown in the figure) for monitoring whether the bars in the material discharging plate 1d are fully discharged or not, and if the system is fully discharged, the feeding of the material feeding plate 1c is stopped temporarily.

As shown in fig. 13, the blanking mechanism 3 includes a discharging plate 3a and a material receiving frame 3b overlapped with the left end of the discharging plate 3a, a material blocking plate 3c is rotatably connected above the left end of the discharging plate 3a, and the discharging plate 3a is obliquely arranged to the lower left.

As shown in fig. 14, in order to further improve the safety of the operation of the device, an upper frame 7 is installed above the workbench to seal the device, and a door opening protection mechanism is also provided, so that when a door on the upper frame 7 is opened, the device stops operating.

When the device works, a worker puts bars into the discharging plate 1b, the right end of the discharging plate 1b drives the bars to the left under the action of the second cylinder 1g, so that the bars roll to the top end of the feeding plate 1c one by one, then the first cylinder 1f drives the feeding plate 1c to move up and down and further lift the bars one by one into the discharging plate 1d, when the discharging plate 1d is full of bars, the feeding plate 1c stops lifting, then the third cylinder 1h drives the discharging plate 1d to move up until the height of the left end edge of the discharging plate 1d is consistent with that of the step surface 1m, at the moment, the bar at the leftmost end of the discharging plate 1d rolls onto the step surface 1m, the pusher 1i pushes the bar on the step surface 1m to extend the front end of the bar, then the fourth cylinder 4e drives the double-station 4a to move right along the slide rail 4d, so that the material clamping component 4b corresponds to the step surface 1m, the material taking component 4c corresponds to the limiting groove 2bh, the system controls the material clamping component 4b to move towards the direction of the step surface 1m and clamp the bar material on the step surface 1m through the clamping jaw 4bd, meanwhile, the material taking component 4c moves towards the direction of the limiting groove 2bh and grasps the bar material in the limiting groove 2bh through the gripper 4cb, then the material clamping component 4b and the material taking component 4c reset, the material clamping component 4b clamps the bar material on the step surface 1m, then the bar material at the leftmost end of the discharging plate 1d continuously rolls onto the step surface 1m, the pusher 1i pushes the bar material on the step surface 1m, then the fourth cylinder 4e drives the double-station 4a to move leftwards along the slide rail 4d, so that the material clamping component 4b corresponds to the limiting groove 2bh, the material taking component 4c corresponds to the discharging plate 3a, the material clamping component 4b moves towards the limiting groove 2bh, and the bar material clamped by the clamping jaw 4bd enters the limiting groove 2bf below, after the sensor 2bs senses that a bar is arranged in the limiting groove 2bh, the servo electric cylinder 2c drives the upper die frame 2ba to press downwards, a jackscrew 5 is pressed through a lever 6 in the process of pressing downwards the upper die frame 2ba so as to drive the mounting seat 4ba to slide downwards synchronously, the upper die frame 2ba presses downwards to drive the material supporting plate 2bf to slide towards the direction of the base 2bd until the bar is contacted with the cutter 2bg to complete the rib punching, the punched rib is 4 ribs, after the rib punching is completed, the servo electric cylinder 2c drives the upper die frame 2ba to ascend, and the mounting seat 4ba and the material supporting plate 2bf reset under the action of the first spring 4bg and the second spring 2bp respectively. If the ribs need to be punched to be 8 ribs or 12 ribs, taking 8 ribs as an example, after the servo motor 4bc drives the chuck 4bb to rotate for a certain angle, the servo electric cylinder 2c drives the upper die frame 2ba to press down and punch 4 ribs again, so that 8 ribs are formed. If different parts of the bar stock need to be punched, the material clamping assembly 4b continues to move towards the direction of the limiting groove 2bh, and the servo electric cylinder 2c drives the upper die carrier 2ba to be pressed down to complete punching after the bar stock moves to a target position. After the rib punching is finished, the clamping jaw 4bd of the clamping component 4b loosens the bar stock, and the clamping component 4b resets. Meanwhile, the material taking assembly 4c moves towards the discharging plate 3a, the bar stock gripped by the gripper 4cb is released onto the discharging plate 3a, the bar stock on the discharging plate 3a rolls onto the position of the material blocking plate 3c and falls into the material receiving frame 3b by overcoming the resistance of the material blocking plate 3c, and the material taking assembly 4c resets. After the material clamping assembly 4b and the material taking assembly 4c reset, the fourth cylinder 4e drives the double stations 4a to move rightwards along the slide rail 4d, so that the material clamping assembly 4b corresponds to the step surface 1m, the material taking assembly 4c corresponds to the limiting groove 2bh, and the rib punching of the next bar is continued.

Through the setting of this device, the workman only need to the blowing board 1b in add the bar can, consequently can several devices of simultaneous operation, promoted work efficiency greatly, reduce the cost of labor.

The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a screeding device, has the workstation which characterized in that: the feeding mechanism (1), the punching press mechanism (2) and the blanking mechanism (3) are distributed on the workbench, the feeding mechanism (1) and the blanking mechanism (3) are arranged at two ends of the punching press mechanism (2), and the transfer of the bar between the feeding mechanism (1), the punching press mechanism (2) and the blanking mechanism (3) is realized through the conveying mechanism (4).

2. The screeding device of claim 1, wherein: stamping mechanism (2) are including mount (2 a), towards muscle subassembly (2 b) and servo electronic jar (2 c), the bottom at mount (2 a) is installed in towards muscle subassembly (2 b), the top at mount (2 a) is installed in servo electronic jar (2 c), the output of servo electronic jar (2 c) acts on towards muscle subassembly (2 b).

3. The screeding device of claim 2, wherein: the punching rib component (2 b) comprises an upper die frame (2 ba), a lower die frame (2 bb) and a guide component (2 bc), four corner ends of the upper die frame (2 ba) and the lower die frame (2 bb) are connected through the guide component (2 bc), the middle parts of opposite surfaces of the upper die frame (2 ba) and the lower die frame (2 bb) are respectively provided with a base (2 bd), the middle parts of the opposite surfaces of the base (2 bd) are respectively provided with a knife holder (2 be), the knife holder (2 be) is sleeved with a material supporting plate (2 bf), the material supporting plate (2 bf) is movably connected with the base (2 bd), the middle parts of the opposite surfaces of the knife holder (2 be) are respectively provided with a cutter (2 bg), and the middle parts of the opposite surfaces of the material supporting plate (2 bf) are respectively provided with a limiting groove (2 bh).

4. A screed device according to claim 3 wherein: the middle symmetry of blade holder (2 be) is equipped with a pair of recess (2 bi), install respectively in recess (2 bi) cutter (2 bg), still be equipped with briquetting (2 bj) in recess (2 bi) and be used for supporting tight cutter (2 bg), the both ends of blade holder (2 be) are equipped with screw hole (2 bk) with recess (2 bi) intercommunication respectively, screw hole (2 bk) female connection has adjusting screw (2 bl), benchmark board (2 bm) is installed to the rear side of blade holder (2 be).

5. The screeding device of claim 4, wherein: conveying mechanism (4) include duplex position (4 a), press from both sides material subassembly (4 b) and get material subassembly (4 c), duplex position (4 a) and workstation sliding connection, press from both sides material subassembly (4 b) and get material subassembly (4 c) respectively with duplex position (4 a) sliding connection.

6. The screeding device of claim 5, wherein: the material clamping assembly (4 b) comprises a mounting seat (4 ba), a chuck (4 bb) and a servo motor (4 bc), the chuck (4 bb) is mounted on the mounting seat (4 ba), the chuck (4 bb) is driven by the servo motor (4 bc), a clamping jaw (4 bd) is mounted on the chuck (4 bb), a sliding column (4 be) penetrates through the mounting seat (4 ba) in a sliding mode, the bottom end of the sliding column (4 be) is connected with the double stations (4 a) in a sliding mode through a first sliding block (4 bf), a first spring (4 bg) is arranged between the mounting seat (4 ba) and the first sliding block (4 bf), and the sliding column (4 be) is sleeved with the first spring (4 bg).

7. The screeding device of claim 5, wherein: the material taking assembly (4 c) comprises a fixed seat (4 ca) and a gripper (4 cb), the gripper (4 cb) is installed at the top end of the fixed seat (4 ca), and the bottom end of the fixed seat (4 ca) is connected with the double station (4 a) in a sliding mode through a second sliding block (4 cd).

8. The screeding device of claim 6, wherein: jackscrew (5) are installed to the left end of mount pad (4 ba), go up the front side of die carrier (2 ba) and install lever (6).

9. The screeding device of claim 5, wherein: the feeding mechanism (1) comprises a U-shaped seat (1 a), a material discharging plate (1 b), a material feeding plate (1 c), a material discharging plate (1 d) and a positioning plate (1 e) are arranged in the U-shaped seat (1 a), the feeding plate (1 c) is connected with the middle part of the U-shaped seat (1 a) in a sliding way, the bottom end of the feeding plate (1 c) is connected with the first cylinder (1 f), the left end of the material discharging plate (1 b) is hinged with the U-shaped seat (1 a), the right end of the material discharging plate (1 b) is hinged with the second cylinder (1 g), the discharge plate (1 d) is arranged between the feeding plate (1 c) and the positioning plate (1 e), the left end of the discharging plate (1 d) is connected with a third cylinder (1 h) to realize the up-and-down movement of the discharging plate (1 d), the rear side of the positioning plate (1 e) is provided with a pusher (1 i), and the material discharging plate (1 b) and the material discharging plate (1 d) are obliquely arranged.

10. The screeding device of claim 5, wherein: unloading mechanism (3) include stripper (3 a) and with stripper (3 a) left end lapped material receiving frame (3 b), the top of stripper (3 a) left end is rotated and is connected with striker plate (3 c), stripper (3 a) slope setting.