CN216323121U - Automatic screening machine for magnets - Google Patents

Abstract

The application relates to the technical field of magnet production and processing, in particular to an automatic magnet screening machine. The key points of the technical scheme are as follows: comprises a feeding mechanism, a screening mechanism and a material blocking component; the feeding mechanism is used for automatic feeding and is positioned above the screening mechanism; the screening mechanism comprises a rack, a driving assembly, a fixed roller shaft and an adjustable roller shaft, wherein the fixed roller shaft and the adjustable roller shaft are respectively arranged on the rack; the fixed roll shaft is adjacent to the adjustable roll shaft, the fixed roll shaft and the adjustable roll shaft are inclined downwards from one side of the rack to the other side of the rack, a gap for a workpiece to fall is formed between the fixed roll shaft and the adjustable roll shaft, and the width of the gap is gradually increased from top to bottom; the driving assembly is arranged on the rack, is respectively connected with one end of the fixed roll shaft and one end of the adjustable roll shaft, and drives the fixed roll shaft and the adjustable roll shaft to rotate; the material stopping assembly is fixed on the frame and is positioned in the gap, and the material stopping assembly is opposite to the feeding mechanism. This application has the function of the convenience when promoting magnet work piece screening.

Description

Automatic screening machine for magnets

Technical Field

The application relates to the technical field of magnet production and processing, in particular to an automatic magnet screening machine.

Background

In the processing production process of the magnet, the steps of cutting, polishing, galvanization and the like are generally required to further form a magnet workpiece, then the magnet workpiece is magnetized, the shape and the size of the magnet workpiece need to be screened before the magnet workpiece is magnetized, and then the magnet workpiece meeting the requirements is subjected to subsequent processing.

In the traditional industry, the magnet workpieces are screened in a manual mode usually, workers rely on naked eyes and work experience to carry out classification inspection on the magnet workpieces, and the magnet workpieces meeting requirements are screened out to be magnetized, so that magnets with the same specification are produced.

To the correlation technique among the above-mentioned, the magnet work piece that the size is less, the difficult difference of distinguishing the subtlety during artifical screening of naked eye leads to the screening time longer to the tired condition appears easily in the staff, and the difficult accuracy of controlling the magnet work piece screening, consequently, the convenience when magnet work piece screening still remains to be promoted.

SUMMERY OF THE UTILITY MODEL

In order to promote the convenience when magnet work piece sieves, this application provides an automatic screening machine of magnet.

The application provides an automatic screening machine of magnet adopts following technical scheme:

an automatic magnet screening machine comprises a feeding mechanism, a screening mechanism and a material blocking assembly; the feeding mechanism is used for automatic feeding and is positioned above the screening mechanism; the screening mechanism comprises a rack, a driving assembly, a fixed roller shaft and an adjustable roller shaft, wherein the fixed roller shaft and the adjustable roller shaft are respectively arranged on the rack; the fixed roll shaft and the adjustable roll shaft are arranged adjacent to each other, the fixed roll shaft and the adjustable roll shaft are inclined downwards from one side of the rack to the other side of the rack, a gap for a workpiece to fall is formed between the fixed roll shaft and the adjustable roll shaft, and the width of the gap is gradually increased from top to bottom; the driving assembly is arranged on the rack, is respectively connected with one end of the fixed roller shaft and one end of the adjustable roller shaft, and is used for driving the fixed roller shaft and the adjustable roller shaft to rotate; keep off material subassembly fixed connection in on the frame, and keep off the material subassembly and be located in the clearance, keep off the material subassembly with feed mechanism is just right mutually.

Through adopting above-mentioned technical scheme, when not unidimensional magnet work piece need sieve the time, put into feed mechanism with the work piece earlier, constantly send out the work piece through feed mechanism, the work piece gets into screening mechanism via feed mechanism, at the clearance fixedly connected with fender material subassembly of fixed roller and adjustable roller, it blocks the work piece towards clearance external motion to keep off the material subassembly, start drive assembly simultaneously, make fixed roller of drive assembly drive and adjustable roller rotate, it slides downwards gradually to drive the work piece, and drop to the frame from the clearance, and then screening mechanism sieves out not unidimensional work piece, promote the convenience when magnet work piece sieves.

Preferably, the material blocking assembly comprises a material blocking plate and a fixing part, the fixing part is provided with a first support arm and a second support arm, the first support arm is vertically connected with the second support arm, the first support arm is fixedly connected to the rack, the material blocking plate is fixedly connected to the second support arm, the material blocking plate is located above the inner side of the gap, and the material blocking plate is opposite to the feeding mechanism.

Through adopting above-mentioned technical scheme, in order to reduce that the work piece that feed mechanism conveyed screening mechanism drops to screening mechanism outside, clearance fixedly connected with striker assembly between fixed roller and adjustable roller, when the work piece landing of feed mechanism conveying to the clearance, the striker plate blocks the work piece and continues to slide forward, and then reduces dropping to the outside possibility of screening mechanism of work piece.

Preferably, the screening mechanism further comprises a plurality of material containers, the material containers are sequentially and adjacently arranged below the fixed roll shaft and the adjustable roll shaft, and the openings of the material containers are larger than the gaps.

Through adopting above-mentioned technical scheme, in order to facilitate the work piece of collecting the completion screening, be provided with a plurality of flourishing material container below fixed roller and adjustable roller, the not unidimensional work piece drops to a plurality of flourishing material container through the clearance between fixed roller and the adjustable roller respectively in to follow-up categorised processing.

Preferably, drive assembly includes motor, first belt pulley, second belt pulley, third belt pulley, fourth belt pulley and belt, the output shaft of motor with first belt pulley fixed connection, the one end of fixed roller axle with second belt pulley fixed connection, the one end of adjustable roller axle with third belt pulley fixed connection, fourth belt pulley rotate connect in the frame, the belt in proper order with first belt pulley the second belt pulley the fourth belt pulley and third belt pulley cladding is connected.

Through adopting above-mentioned technical scheme, when screening mechanism sieves the work piece, the starter motor, the motor drives first belt pulley and rotates, first belt pulley drives the belt and rotates, make the belt drive the second belt pulley in proper order, fourth belt pulley and third belt pulley rotate, and then realize that fixed roller and adjustable roller rotate towards the direction in clearance simultaneously, the work piece drops to containing material container in under the rotation effect of fixed roller and adjustable roller, has promoted the screening efficiency of work piece.

Preferably, the frame is carried on the back both sides protrudingly and is equipped with the slide rail mutually, screening mechanism still includes first installation component, first installation component includes fixed block and fastening screw, the both ends of fixed roller respectively with the fixed block rotates to be connected, fastening screw will fixed block fixed mounting in on the slide rail.

Through adopting above-mentioned technical scheme, in order to realize the installation of fixed roller, rotate respectively with the both ends of fixed roller and connect on the fixed block to through fastening screw with fixed block fixed connection on the slide rail of frame both sides, the slide rail has restricted the motion degree of freedom of fixed block, makes fixed roller in the motion process, is difficult for appearing the condition that breaks away from the fixed block.

Preferably, the screening mechanism further comprises a second mounting assembly, the second mounting assembly comprises a moving block and an adjusting portion, two ends of the adjustable roller shaft are respectively connected with the moving block in a rotating mode, the moving block is connected with the sliding rail in a sliding mode, the adjusting portion is arranged on the rack and connected with the moving block, and the adjusting portion is used for adjusting and controlling the position of the moving block.

Through adopting above-mentioned technical scheme, for the suitability of promotion screening machine, rotate the both ends of adjustable roller respectively and connect on the movable block to the movable block slides with the slide rail and is connected, adjusts the distance between movable block and the fixed block through regulating part, and then adjusts the distance between fixed roller and the adjustable roller both ends, so that be used for screening different work pieces.

Preferably, the adjusting portion includes a spring, a first screw rod and an adjusting block, the first screw rod is rotatably connected to the frame, the adjusting block is fixedly connected to one end of the first screw rod, the other end of the first screw rod is in threaded connection with the moving block, the spring is sleeved outside the first screw rod, and two ends of the spring are respectively abutted to the moving block and the frame.

Through adopting above-mentioned technical scheme, for the convenience of adjusting the distance between movable block and the fixed block, movable block and first screw rod threaded connection rotate the regulating block when the movable block is adjusted to needs, and the regulating block drives first screw rod and movable block screw-thread fit, and then regulates and control the position of movable block, and the length of spring can compress or release along with the removal of movable block, and the spring has the cushioning effect to sliding of movable block to the stability that the regulation and control movable block slided.

Preferably, feed mechanism includes vibration material loading machine and pay-off slide, the vibration material loading machine is used for automatic feeding, the pay-off slide respectively with the vibration material loading machine and the top in clearance docks mutually, the pay-off slide be used for with work piece conveying on the vibration material loading machine to screening mechanism.

Through adopting above-mentioned technical scheme, in order to reduce staff's work load, be provided with the automatic feeding that the vibration material loading machine is used for the work piece, the work piece conveys to screening mechanism and sieves via the pay-off slide, simple structure, it is convenient to use.

Preferably, the rack is fixedly connected with a protective cover, and the protective cover is sleeved outside the driving assembly.

Through adopting above-mentioned technical scheme, for the security that promotes the working process, the safety cover has been cup jointed in the drive assembly outside, and when starting drive assembly, but the safety cover separation staff and the drive assembly direct contact in the operation, and then reduce the injured possibility of staff.

Preferably, the adjustable support leg structure further comprises a plurality of adjustable support legs, the adjustable support legs are respectively arranged on two sides of the rack, each adjustable support leg comprises a second screw and a cushion block, the bottom of the rack is in threaded connection with the second screw, and the second screw is fixedly connected with the cushion block.

Through adopting above-mentioned technical scheme, in order to facilitate the height of adjustment frame both sides, the both sides of frame threaded connection respectively have adjustable stabilizer blade, through the height of adjustable stabilizer blade and frame screw-thread fit adjustment frame both sides, and then the difference in height at adjustment fixed roller and adjustable roller both ends to in satisfying the user demand of difference, further promoted the convenience of this automatic screening machine screening work piece.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the workpiece is fed into a gap between the fixed roller shaft and the adjustable roller shaft through the feeding mechanism to be screened, a material blocking assembly is fixedly connected with the gap and blocks the workpiece to move towards the outside of the gap, meanwhile, the driving assembly drives the fixed roller shaft and the adjustable roller shaft to rotate towards the gap, the workpiece is driven to gradually slide downwards and fall onto the rack from the gap, and then the screening mechanism screens out workpieces with different sizes;

2. when the driving assembly is started, the motor drives the first belt pulley to rotate, the first belt pulley drives the belt to rotate, the belt sequentially drives the second belt pulley, the fourth belt pulley and the third belt pulley to rotate, the fixed roller shaft and the adjustable roller shaft rotate, workpieces fall into the material containing container under the rotating action of the fixed roller shaft and the adjustable roller shaft, and the screening efficiency of the workpieces is improved;

3. in order to adjust the distance between the moving block and the fixed block conveniently, the moving block is in threaded connection with the first screw rod, the adjusting block is rotated, the adjusting block drives the first screw rod to be in threaded fit with the moving block, the position of the moving block is adjusted and controlled, meanwhile, the spring has a buffering effect on the sliding of the moving block, and the sliding stability of the moving block is improved.

Drawings

Figure 1 is the overall structure schematic diagram of this application automatic screening machine.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a schematic structural diagram of a drive assembly of the present application.

Fig. 5 is a schematic structural view of the sieving mechanism of the present application.

Description of reference numerals: 1. a feeding mechanism; 11. vibrating the feeding machine; 12. a feeding chute; 2. a screening mechanism; 21. a frame; 211. a slide rail; 2111. a limiting strip; 212. an adjustable support leg; 2121. a second screw; 2122. cushion blocks; 213. fixing the rod; 22. a drive assembly; 221. a motor; 222. a first pulley; 223. a second pulley; 224. a third belt pulley; 225. a fourth belt pulley; 226. a belt; 23. fixing the roll shaft; 24. an adjustable roll shaft; 25. a gap; 26. a first mounting assembly; 261. a fixed block; 262. fastening screws; 27. a second mounting assembly; 271. a moving block; 272. an adjustment section; 2721. a spring; 2722. a first screw; 2723. an adjusting block; 28. a material container; 29. a protective cover; 3. the material blocking component; 31. a striker plate; 32. a fixed part; 321. a first support arm; 322. a second support arm.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses automatic screening machine of magnet. Referring to fig. 1, the automatic sieving machine comprises a feeding mechanism 1, a sieving mechanism 2 and a material blocking assembly 3; feed mechanism 1 and screening mechanism 2 are adjacent to be placed on the workstation, feed mechanism 1 is used for automatic feeding to feed mechanism 1's ejection of compact position is located screening mechanism 2's top, screening mechanism 2 is used for sieving not unidimensional work piece, striker assembly 3 is located screening mechanism 2 tops, and striker assembly 3 is just right with feed mechanism 1 mutually, striker assembly 3 is used for blockking that feed mechanism 1 conveys the work piece that screens mechanism 2 and drops to screening mechanism 2 outsidely.

In order to realize the function of screening the workpieces by the screening mechanism 2, the screening mechanism 2 comprises a frame 21, a driving component 22, a fixed roller shaft 23 and an adjustable roller shaft 24; the frame 21 is placed on the workstation, and fixed roller 23 and adjustable roller 24 rotate respectively and connect in frame 21 top, and fixed roller 23 sets up with adjustable roller 24 is adjacent, and fixed roller 23 and adjustable roller 24 slope down to the opposite side of frame 21 from one side of frame 21, here, form the clearance 25 that supplies the work piece to drop between fixed roller 23 and the adjustable roller 24, and the width of clearance 25 is crescent from top to bottom.

Here, the higher end of the fixed roller shaft 23 is defined as a first end portion, and the lower end is defined as a second end portion.

In order to realize the automatic feeding of the feeding mechanism 1, the feeding mechanism 1 comprises a vibration feeding machine 11 and a feeding slide way 12, the vibration feeding machine 11 is placed on a workbench, the vibration feeding machine 11 is powered on and can convey workpieces to the top of a machine body, the top of the machine body is used for discharging materials, the top of the machine body is higher than the screening mechanism 2, the feeding slide way 12 is fixedly connected to one side, close to the first end, of the rack 21 through screws, one end of the feeding slide way 12 is butted with the top of the vibration feeding machine 11, the other end of the feeding slide way is located above the fixed roller shaft 23 and butted with the gap 25, and the workpieces on the vibration feeding machine 11 are conveyed to the gap 25 through the feeding slide way 12 to be screened.

Referring to fig. 2, in order to reduce the workpiece that the vibration feeding machine 11 transmits to the sieving mechanism 2 from dropping outside the sieving mechanism 2, the material blocking assembly 3 includes a material blocking plate 31 and a fixing portion 32, the fixing portion 32 has a first arm 321 and a second arm 322, wherein the first arm 321 and the second arm 322 are respectively in a sheet shape, the first arm 321 and the second arm 322 are integrally formed and perpendicular to each other, the first arm 321 is fixedly connected to one side of the frame 21 near the first end portion through a screw in an inclined manner, the first arm 321 is located above the gap 25, the material blocking plate 31 is fixedly connected to the second arm 322 through a screw, one side of the material blocking plate 31 far from the second arm 322 extends into the gap 25, one side of the material blocking plate 31 is opposite to one end of the material feeding chute 12, and the top of the material blocking plate 31 is far from the material feeding chute 12 compared with the bottom.

When the workpiece conveyed by the vibration feeding machine 11 is conveyed to the first end part through the feeding slideway 12, the workpiece can fall onto the fixed roller shaft 23 and the adjustable roller shaft 24 and can slide into the gap 25 to be screened under the rotating action of the fixed roller shaft 23 and the adjustable roller shaft 24, the material baffle plate 31 can prevent the workpiece from falling to one side of the adjustable roller shaft 24 away from the fixed roller shaft 23, the workpiece falling onto the material baffle plate 31 can enter the gap 25 through the guide of the material baffle plate 31, and the possibility that the workpiece falls to the outside of the screening mechanism 2 is reduced.

Referring to fig. 3, in order to implement the installation of the fixed roller shaft 23, two opposite sides of the frame 21 are respectively provided with two sliding rails 211 in a protruding manner, the two sliding rails 211 are horizontally arranged and are parallel to each other, the two sliding rails 211 respectively extend towards one side close to each other to form a limiting strip 2111, and the limiting strip 2111 is located on one side of the sliding rail 211 away from the frame 21; screening mechanism 2 still includes first installation component 26, first installation component 26 includes fixed block 261 and fastening screw 262, the both ends of fixed roller 23 are rotated respectively and are connected in the middle part of fixed block 261, fastening screw 262 is with two fixed block 261 respectively fixed connection in the both sides that the frame 21 carried on the back mutually, and every fixed block 261 is located between two slide rails 211, the one side looks butt that the frame 21 was kept away from to spacing 2111 and fixed block 261 of slide rail 211, spacing 2111 restriction fixed block 261 moves towards the slide rail 211 outside, the stability of fixed block 261 installation has further been promoted.

In addition, the screening mechanism 2 further includes a second mounting assembly 27, the second mounting assembly 27 includes a moving block 271 and an adjusting portion 272, two ends of the adjustable roller shaft 24 are respectively rotatably connected to the middle of the moving block 271, the moving block 271 is slidably connected with the slide rails 211, the moving block 271 is located between the two slide rails 211, the moving block 271 is adjacent to the fixed block 261, and a limiting strip 2111 of the slide rail 211 abuts against one side of the moving block 271, which is far away from the rack 21, so as to limit the moving block 271 to move towards the outside of the slide rails 211.

In order to facilitate the adjustment of the distance between the moving block 271 and the fixed block 261, the adjusting portion 272 includes a spring 2721, a first screw 2722 and an adjusting block 2723, the first screw 2722 is rotatably connected to one side of the frame 21 away from the second end, the adjusting block 2723 is fixedly connected to one end of the first screw 2722 through a screw, the other end of the first screw 2722 is in threaded connection with one side of the moving block 271 away from the fixed block 261, the spring 2721 is sleeved outside the first screw 2722, one end of the spring 2721 is abutted to one side of the moving block 271 away from the fixed block 261, and the other end is abutted to one side of the frame 21 away from the adjusting block 2723. Here, the adjusting block 2723 can be rotated, and the adjusting block 2723 drives the first screw 2722 to be in threaded fit with the moving block 271, so as to adjust and control the position of the moving block 271, the length of the spring 2721 is compressed or released along with the movement of the moving block 271, and the spring 2721 has a buffering effect on the sliding of the moving block 271, so that the stability of the sliding of the moving block 271 is adjusted and controlled.

Referring to fig. 4, in order to drive the fixed roller shaft 23 and the adjustable roller shaft 24 to rotate toward the gap 25 while maintaining the same rotational frequency, the driving assembly 22 includes a motor 221, a first pulley 222, a second pulley 223, a third pulley 224, a fourth pulley 225, and a belt 226.

Specifically, the motor 221 is fixedly mounted on one side of the frame 21 away from the first end portion through a screw, and an output shaft of the motor 221 is fixedly connected with the first belt pulley 222; one end of the fixed roller shaft 23 rotatably connected with the fixed block 261 extends towards the outside of the frame 21 and is fixedly connected with the second belt pulley 223; one end of the adjustable roller shaft 24 rotatably connected with the moving block 271 extends towards the outside of the frame 21 and is fixedly connected with the third belt pulley 224; a fourth belt pulley 225 is rotatably mounted on the frame 21 via a rotating shaft, the fourth belt pulley 225 is located on a side of the second belt pulley 223 far away from the third belt pulley 224, and the fourth belt pulley 225 is located above the second belt pulley 223.

Here, the first pulley 222, the second pulley 223, the third pulley 224 and the fourth pulley 225 are located on the same vertical plane, and the belt 226 is sequentially wrapped and connected with the first pulley 222, the second pulley 223, the fourth pulley 225 and the third pulley 224, wherein the belt 226 is wrapped and connected on one side of the third pulley 224 far away from the second pulley 223, and the belt 226 is wrapped and connected on one side of the second pulley 223 close to the third pulley 224.

When the driving assembly 22 works, the power of the motor 221 is switched on, so that the motor 221 drives the first belt pulley 222 to rotate, the first belt pulley 222 drives the belt 226 to rotate, the belt 226 sequentially drives the second belt pulley 223, the fourth belt pulley 225 and the third belt pulley 224 to rotate, the fixed roller shaft 23 and the adjustable roller shaft 24 simultaneously rotate towards the gap 25, further, the workpiece is pushed to move downwards, the workpiece drops onto the rack 21 under the rotating action of the fixed roller shaft 23 and the adjustable roller shaft 24, and the workpiece screening efficiency is improved.

Referring to fig. 5, in order to facilitate collecting the workpieces which have been screened, the screening mechanism 2 further includes a plurality of material containers 28, in this embodiment, the material containers 28 are square box bodies, the number of the material containers 28 is six, the six material containers 28 are sequentially arranged below the gap 25, the top of the material container 28 is provided with an opening, and the size of the opening along the width direction of the gap 25 is larger than the width of the gap 25, so that the workpieces with different sizes fall into different material containers 28 through the gap 25, thereby completing the screening of the workpiece sizes.

In order to improve the safety of working of workers, the automatic screening machine further comprises a protective cover 29, the protective cover 29 is fixedly connected to one side, away from the first end, of the machine frame 21 through screws, the protective cover 29 is sleeved outside the first belt pulley 222, the second belt pulley 223, the third belt pulley 224 and the fourth belt pulley 225, when the driving assembly 22 is started, the protective cover 29 can prevent the workers from being in direct contact with the driving assembly 22 in operation, and therefore the risk that the workers are injured in the working process is reduced.

In order to adjust the heights of the two sides of the frame 21, the automatic sieving machine further includes a plurality of adjustable support legs 212, each adjustable support leg 212 includes a second screw 2121 and a block 2122, the bottom of the frame 21 is in threaded connection with the second screw 2121, one end of the second screw 2121, which is far away from the frame 21, is fixedly connected with the block 2122, and the frame 21 is placed on the workbench through the adjustable support legs 212.

For the stability of lifting frame 21, in this embodiment, the quantity of adjustable stabilizer blade 212 is provided with four, and four adjustable stabilizer blades 212 are the rectangle and arrange, through the height of adjustable stabilizer blade 212 and frame 21 screw-thread fit adjustment frame 21 both sides to in order to satisfy different user demands, and then adjust the difference in height at fixed roller 23 and adjustable roller 24 both ends, promoted the convenience that this automatic screening machine sieved the work piece.

In order to further improve the stability of the frame 21, the frame 21 includes two fixing rods 213, two ends of the fixing rods 213 are fixedly connected to two sides of the frame 21 through screws, the two fixing rods 213 are parallel to each other, one fixing rod 213 is located on one side of the fixing roller shaft 23 away from the adjustable roller shaft 24, the other fixing rod 213 is located on one side of the adjustable roller shaft 24 away from the fixing roller shaft 23, and the two fixing rods 213 are connected to two sides of the frame 21, so that the overall structure of the frame 21 is more stable.

The implementation principle of the automatic magnet screening machine in the embodiment of the application is as follows: when magnet workpieces with different sizes need to be screened, the workpieces are firstly placed into the vibration feeding machine 11, the workpieces are continuously fed out through the vibration feeding machine 11, and the workpieces enter the screening mechanism 2 through the feeding slide way 12 for screening; at the clearance 25 fixedly connected with striker plate 31 of fixed roller 23 and adjustable roller 24, striker plate 31 blocks the outside motion of work piece towards clearance 25, under drive assembly 22's drive effect, fixed roller 23 and adjustable roller 24 rotate towards the direction in clearance 25, make the work piece slide downwards along fixed roller 23 and adjustable roller 24, and drop to flourishing material container 28 in from clearance 25, and then screening mechanism 2 sieves out the work piece of unidimensional, the convenience when having promoted magnet work piece screening.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The automatic magnet screening machine is characterized in that: comprises a feeding mechanism (1), a screening mechanism (2) and a material blocking component (3);

the feeding mechanism (1) is used for automatic feeding, and the feeding mechanism (1) is positioned above the screening mechanism (2);

the screening mechanism (2) comprises a rack (21), a driving assembly (22), a fixed roller shaft (23) and an adjustable roller shaft (24), wherein the fixed roller shaft (23) and the adjustable roller shaft (24) are respectively installed on the rack (21); the fixed roll shaft (23) and the adjustable roll shaft (24) are arranged adjacently, the fixed roll shaft (23) and the adjustable roll shaft (24) are inclined downwards from one side of the rack (21) to the other side of the rack (21), a gap (25) for a workpiece to fall is formed between the fixed roll shaft (23) and the adjustable roll shaft (24), and the width of the gap (25) is gradually increased from top to bottom;

the driving assembly (22) is arranged on the rack (21), the driving assembly (22) is respectively connected with one end of the fixed roller shaft (23) and one end of the adjustable roller shaft (24), and the driving assembly (22) is used for driving the fixed roller shaft (23) and the adjustable roller shaft (24) to rotate;

keep off material subassembly (3) fixed connection in on frame (21), and keep off material subassembly (3) and be located in clearance (25), keep off material subassembly (3) with feed mechanism (1) is just right mutually.

2. The automatic magnet screening machine according to claim 1, characterized in that: striker assembly (3) include striker plate (31) and fixed part (32), fixed part (32) have first support arm (321) and second support arm (322), first support arm (321) with second support arm (322) link to each other perpendicularly, first support arm (321) fixed connection in on frame (21), striker plate (31) fixed connection in on second support arm (322), striker plate (31) are located top in clearance (25), and striker plate (31) with feed mechanism (1) is just right mutually.

3. The automatic magnet screening machine according to claim 1, characterized in that: screening mechanism (2) still include a plurality of flourishing material container (28), a plurality of flourishing material container (28) adjacent row in proper order in fixed roller (23) and adjustable roller (24) below, the opening of flourishing material container (28) is greater than clearance (25).

4. The automatic magnet screening machine according to claim 1, characterized in that: drive assembly (22) includes motor (221), first belt pulley (222), second belt pulley (223), third belt pulley (224), fourth belt pulley (225) and belt (226), the output shaft of motor (221) with first belt pulley (222) fixed connection, the one end of fixed roller axle (23) with second belt pulley (223) fixed connection, the one end of adjustable roller axle (24) with third belt pulley (224) fixed connection, fourth belt pulley (225) rotate connect in on frame (21), belt (226) in proper order with first belt pulley (222), second belt pulley (223), fourth belt pulley (225) and third belt pulley (224) cladding is connected.

5. The automatic magnet screening machine according to claim 1, characterized in that: frame (21) both sides that back on the back mutually are protruding to be equipped with slide rail (211), screening mechanism (2) still include first installation component (26), first installation component (26) include fixed block (261) and fastening screw (262), the both ends of fixed roller (23) respectively with fixed block (261) rotate and are connected, fastening screw (262) will fixed block (261) fixed mounting in on slide rail (211).

6. The automatic magnet screening machine according to claim 5, characterized in that: the screening mechanism (2) further comprises a second mounting assembly (27), the second mounting assembly (27) comprises a moving block (271) and an adjusting portion (272), two ends of the adjustable roller shaft (24) are respectively rotatably connected with the moving block (271), the moving block (271) is connected with the sliding rail (211) in a sliding mode, the adjusting portion (272) is arranged on the rack (21), the adjusting portion (272) is connected with the moving block (271), and the adjusting portion (272) is used for adjusting and controlling the position of the moving block (271).

7. The automatic magnet screening machine according to claim 6, characterized in that: the adjusting portion (272) comprises a spring (2721), a first screw rod (2722) and an adjusting block (2723), the first screw rod (2722) is rotatably connected to the rack (21), the adjusting block (2723) is fixedly connected with one end of the first screw rod (2722), the other end of the first screw rod (2722) is in threaded connection with the moving block (271), the spring (2721) is sleeved outside the first screw rod (2722), and two ends of the spring (2721) are respectively abutted to the moving block (271) and the rack (21).

8. The automatic magnet screening machine according to claim 1, characterized in that: feed mechanism (1) is including vibration material loading machine (11) and pay-off slide (12), vibration material loading machine (11) are used for automatic feeding, pay-off slide (12) respectively with vibration material loading machine (11) and the top of clearance (25) docks mutually, pay-off slide (12) be used for with work piece conveying on vibration material loading machine (11) conveys to screening mechanism (2).

9. The automatic magnet screening machine according to claim 1, characterized in that: frame (21) fixedly connected with safety cover (29), safety cover (29) cup joint in drive assembly (22) outside.

10. The automatic magnet screening machine according to claim 1, characterized in that: the adjustable support leg structure is characterized by further comprising a plurality of adjustable support legs (212), wherein the adjustable support legs (212) are arranged on two sides of the rack (21) respectively, each adjustable support leg (212) comprises a second screw rod (2121) and a cushion block (2122), the bottom of the rack (21) is in threaded connection with the second screw rods (2121), and the second screw rods (2121) are fixedly connected with the cushion blocks (2122).

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