CN115283263A

CN115283263A - Zipper raw material screening machine

Info

Publication number: CN115283263A
Application number: CN202211209341.0A
Authority: CN
Inventors: 缪薛峰
Original assignee: Nantong Shengjie Zipper Co ltd
Current assignee: Nantong Shengjie Zipper Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-11-04
Anticipated expiration: 2042-09-30
Also published as: CN115283263B

Abstract

The invention discloses a zipper raw material screening machine, which relates to the technical field of screening machines and comprises a vibration screening mechanism and a centrifugal screening mechanism, wherein the vibration screening mechanism is used for screening zipper heads sliding up and down on an inclined plane by utilizing the fact that a coarse material plate cannot pass through a first sieve pore and the zipper heads can pass through the first sieve pore, and preventing the coarse material plate and the zipper heads from being pushed and blocking the first sieve pore by vibration, so that the good continuous screening capacity of the first sieve pore is kept; through the centrifugal screening mechanism, a large number of coarse material plates and zipper heads are thrown to the edge of the screen cylinder by using centrifugal force, so that the coarse material plates are conveniently thrown out of the strip-shaped screen grooves, the screen cylinder and the rotating rod rotate relatively, the screen cylinder can drive the zipper heads to rotate and fall through the second screen holes, the second screen holes and the strip-shaped screen holes are cleaned by using the scraper and the hooks, and good screening capacity is maintained; spacing buffer, the article that block up in the first sieve mesh are shaken open, prevent that the material from blockking up first sieve mesh, have the characteristics that the practicality is strong.

Description

Zipper raw material screening machine

Technical Field

The invention relates to the technical field of screening machines, in particular to a zipper raw material screening machine.

Background

The screening refers to a process of dividing the crushed materials into different size fractions through one or more layers of screen surfaces, when the zipper puller is produced, each coarse material plate comprises a plurality of zipper pullers, the zipper pullers are separated from the coarse material plate, and then the zipper pullers are screened out from a mixture of the zipper pullers and the coarse material plate to obtain the single zipper pullers.

Referring to Chinese patent CN210045551U, a zipper head screening device comprises a lifting mechanism and a screening mechanism, wherein the lifting mechanism comprises an upper bracket, a lower bracket, a conveyor belt and a material box; the upper bracket comprises a front frame, a rear frame and a connecting rod, the front frame and the rear frame are just opposite to each other and are inclined in a left-low-right-high shape, the front frame is formed by connecting two transverse rods and a plurality of vertical rods, the upper end and the lower end of the vertical rod are connected with the transverse rods, the front frame and the rear frame are connected through the connecting rod, the positions of the front frame and the rear frame, which are connected, are located at the intersection positions of the lower ends of the vertical rods and the transverse rods, a plurality of guide rollers capable of rolling are installed between the two transverse rods located below, and the transverse rods are located at the same side and located between the two highest vertical rods.

This equipment structure is simple, easily operation, but the discharge gate is big, and the discharge gate does not have the letter sorting function, and coarse fodder board and draw zipper head all can follow the discharge gate and discharge, and the screening is complete, and follow-up still needs manual sorting, wastes time and energy, and coarse fodder board also blocks the sieve mesh easily, influences screening efficiency, and consequently, it is very necessary to design a zip fastener raw and other materials screening machine that the practicality is strong.

Disclosure of Invention

The invention aims to provide a zipper raw material screening machine to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a zip fastener raw and other materials screening machine, includes the bottom plate, the first backup pad of top fixedly connected with of bottom plate, the bottom fixedly connected with bracing piece of bottom plate, the top fixedly connected with feed plate of first backup pad, the top fixedly connected with second backup pad of bottom plate, the bottom fixedly connected with centrifugal screening mechanism of second backup pad, be provided with vibration screening mechanism under the feed plate, one side of vibration screening mechanism and the one end fixed connection of bracing piece, the top fixedly connected with coarse fodder board collecting vessel of bottom plate, the side fixedly connected with of coarse fodder board collecting vessel draws zipper head collecting vessel.

According to the technical scheme, vibrations screening mechanism includes two-way motor, the first pivot of two-way motor's output fixedly connected with, the top fixedly connected with collision lug of first pivot, the top fixedly connected with separation blade of bracing piece, the left side of collision lug is provided with collision pole, collision pole's top fixedly connected with slope sieve board, be provided with under the slope sieve board and draw zipper head to collect the box, draw zipper head to collect one side fixed connection that the box is close to the slope sieve board with the bracing piece, the spacing buffer of one side fixedly connected with of slope sieve board is, and it is that spacing buffer runs through and is provided with first buffer, crosses spacing buffer, has elastic slope sieve board mainly along controlling two direction translations during the sieve mesh, and collision pole bumps at the in-process that resumes, and the angle change of collision also can produce the ascending power in vertical direction, and the slope sieve is slightly trembled in vertical direction, can shake the article that blocks up in the first sieve mesh open, keeps the screening ability of first sieve mesh, when the slope sieve board translation, slope sieve board and separation blade take place relative movement, and push away the material that remains on the first sieve mesh to first sieve mesh, prevent first material blocking up again.

According to the technical scheme, centrifugal screening mechanism includes the motor, the output end fixedly connected with second pivot of motor, the bottom fixedly connected with ball of second pivot rotates the piece, the bottom fixedly connected with sieve section of thick bamboo that the ball rotated the piece, the side fixedly connected with anti-clogging device that the ball rotated the piece, bar sieve groove has been seted up to the side of a sieve section of thick bamboo, the second sieve mesh has been seted up to the bottom of a sieve section of thick bamboo.

According to the technical scheme, the ball rotating piece comprises an upper plate, the bottom of the upper plate is fixedly connected with an inner ring, the bottom of the inner ring is fixedly connected with a lower plate, the bottom of the upper plate is connected with the balls in a rolling mode, the upper plate and the lower plate are provided with outer rings, and two ends of each outer ring are respectively connected with the bottom of the upper plate and the top of the lower plate in a sliding mode.

According to the technical scheme, the anti-blocking device comprises the rotating rod, the bottom fixedly connected with scraper blade of rotating rod, the one end fixedly connected with cleaning sheet of outer loop axis is kept away from to the rotating rod, the one end fixedly connected with of cleaning sheet keeping away from the outer loop axis scrapes the hook, scrape and seted up the cross slot between the hook, the second pivot is taken inner ring, ball, outer loop rotation in proper order, because sliding friction can consume kinetic energy, so the slew velocity of outer loop will be slower than the slew velocity of inner ring, the scraper blade of rotating rod bottom can scrape the coarse fodder board on the screen drum surface and draw the zipper head and take the motion to prevent that the coarse fodder board from blockking up the second sieve mesh, also be convenient for promote to draw the zipper head and make it fall down from the second sieve mesh, the hook of scraping of rotating rod one end is convenient for colluding away the accumulational hook of screen drum edge, keeps the screening ability in bar screen groove, promotes the screening ability.

According to the technical scheme, the inclination angle of the inclined sieve plate is forty-five degrees, the number of the baffle plates is four, two baffle plates are arranged on one side of the inclined sieve plate, and a limiting buffer device is arranged between the two baffle plates on the same side of the inclined sieve plate.

According to the technical scheme, the number of the strip-shaped screen grooves is three, the three strip-shaped screen grooves are equidistantly distributed in the circumferential direction of the screen cylinder, the number of the anti-blocking devices is two, and the two anti-blocking devices are equidistantly distributed in the circumferential direction of the second rotating shaft.

According to the technical scheme, the diameters of the upper plate and the lower plate are the same, the balls are arranged between the upper plate and the lower plate, and the balls are in rolling connection with the inner ring.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the invention, the coarse material plate cannot pass through the first sieve mesh through the vibration screening mechanism, the zipper head can pass through the first sieve mesh, so that the zipper head sliding up and down on the inclined plane is screened out, the coarse material plate and the zipper head are prevented from being pushed and blocking the first sieve mesh through vibration, and the good continuous screening capacity of the first sieve mesh is maintained.

(2) According to the invention, through the limiting buffer device, the inclined sieve plate with elasticity mainly translates along the left direction and the right direction during collision, the collision rod collides again in the recovery process, the collision angle changes and can generate vertical force, the inclined sieve slightly shakes in the vertical direction, and objects blocked in the first sieve mesh can be shaken off to keep the screening capacity of the first sieve mesh.

(3) According to the invention, a large number of coarse material plates and zipper heads are thrown to the edge of the screen cylinder by the centrifugal screening mechanism through centrifugal force, so that the coarse material plates are conveniently thrown out of the strip-shaped screen groove, the screen cylinder and the rotating rod rotate relatively, the screen cylinder can drive the zipper heads to rotate and fall through the second screen holes, and the scraper and the hook are used for cleaning the second screen holes and the strip-shaped screen holes, so that good screening capacity is maintained.

(4) According to the invention, the inner ring, the balls and the outer ring are sequentially driven to rotate by the second rotating shaft, kinetic energy is consumed due to sliding friction, so that the rotating speed of the outer ring is slower than that of the inner ring, the coarse material plate and the zipper head on the surface of the screen cylinder can be scraped and driven to move by the scraper at the bottom of the rotating rod, the coarse material plate is prevented from blocking a second screen hole, the zipper head is also conveniently pushed to fall from the second screen hole, the scraping hook at one end of the rotating rod is convenient to hook away the scraping hook accumulated on the edge of the screen cylinder, the screening capacity of the strip-shaped screen groove is maintained, and the screening capacity is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall principle of the present invention;

FIG. 2 is a schematic structural view of the vibratory screening mechanism of the present invention;

FIG. 3 is a schematic view of the vibrating sifting mechanism of the present invention with the zipper head collection box removed;

FIG. 4 is a schematic view of the construction of the inclined screen deck and the position of the limiting buffer device of the present invention;

FIG. 5 is an exploded view of the construction of the spacing and cushioning device of the present invention;

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

FIG. 7 is a front cross-sectional view of the centrifugal sizing mechanism of the present invention;

FIG. 8 is a schematic view of the configuration of the ball rotor and the anti-jamming device of the present invention;

FIG. 9 is a schematic view showing a structure of a ball rotating member according to the present invention;

figure 10 is a schematic view of the construction of the anti-clogging device of the present invention.

In the figure: 1. the automatic cleaning device comprises a bottom plate, 2, a first supporting plate, 3, a supporting rod, 4, a feeding plate, 5, a second supporting plate, 6, a coarse material plate collecting barrel, 7, a zipper head collecting barrel, 8, a vibration screening mechanism, 81, a bidirectional motor, 82, a first rotating shaft, 83, a collision bump, 84, a collision rod, 85, a zipper head collecting box, 86, an inclined screen plate, 87, a baffle, 88, a limiting buffer device, 881, a connecting block, 882, a top barrel, 883, a spring, 884, a moving rod, 885, a limiting barrel, 886, a baffle, 89, a first screen hole, 9, a centrifugal screening mechanism, 91, a motor, 92, a second rotating shaft, 93, a ball rotating piece, 931, an upper plate, 932, an inner ring, a 933, a lower plate, 934, an outer ring, 935, a ball, 94, a screen barrel, 95, an anti-blocking device, 951, a rotating rod, a scraper, 953, a cleaning sheet, a 954, a transverse groove, 96, a bar-shaped screen hole, 955 and a second screen hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides the following technical solutions: a zipper raw material screening machine comprises a bottom plate 1, wherein the top of the bottom plate 1 is fixedly connected with a first supporting plate 2, the bottom of the bottom plate 1 is fixedly connected with a supporting rod 3, the top of the first supporting plate 2 is fixedly connected with a feeding plate 4, the top of the bottom plate 1 is fixedly connected with a second supporting plate 5, the bottom of the second supporting plate 5 is fixedly connected with a centrifugal screening mechanism 9, a vibration screening mechanism 8 is arranged right below the feeding plate 4, one side of the vibration screening mechanism 8 is fixedly connected with one end of the supporting rod 3, the top of the bottom plate 1 is fixedly connected with a coarse material plate collecting cylinder 6, and the side surface of the coarse material plate collecting cylinder 6 is fixedly connected with a zipper head collecting cylinder 7;

the vibration screening mechanism 8 comprises a bidirectional motor 81, an output end of the bidirectional motor 81 is fixedly connected with a first rotating shaft 82, the top of the first rotating shaft 82 is fixedly connected with a collision bump 83, the top of the supporting rod 3 is fixedly connected with a baffle 87, the left side of the collision bump 83 is provided with a collision rod 84, the top of the collision rod 84 is fixedly connected with an inclined sieve plate 86, a zipper head collecting box 85 is arranged right below the inclined sieve plate 86, one side of the zipper head collecting box 85 is fixedly connected with one side of the supporting rod 3 close to the inclined sieve plate 86, one side of the inclined sieve plate 86 is fixedly connected with a limiting buffer device 88, the limiting buffer device 88 penetrates through a first sieve hole 89, the inclination angle of the inclined sieve plate 86 is forty-five degrees, the baffle 87 is totally four, one side of the inclined sieve plate 86 is provided with two baffles 87, and a limiting buffer device 88 is arranged between the two baffles 87 on the same side of the inclined sieve plate 86;

the centrifugal screening mechanism 9 comprises a motor 91, a second rotating shaft 92 is fixedly connected to the output end of the motor 91, a ball rotating member 93 is fixedly connected to the bottom of the second rotating shaft 92, a screen cylinder 94 is fixedly connected to the bottom of the ball rotating member 93, an anti-blocking device 95 is fixedly connected to the side surface of the ball rotating member 93, a strip-shaped screen groove 96 is formed in the side surface of the screen cylinder 94, a second screen hole 97 is formed in the bottom of the screen cylinder 94, the strip-shaped screen grooves 96 are three in number, the three strip-shaped screen grooves 96 are equidistantly distributed in the circumferential direction of the screen cylinder 94, the anti-blocking devices 95 are two in number, and the two anti-blocking devices 95 are equidistantly distributed in the circumferential direction of the second rotating shaft 92;

the ball rotating piece 93 comprises an upper plate 931, the bottom of the upper plate 931 is fixedly connected with an inner ring 932, the bottom of the inner ring 932 is fixedly connected with a lower plate 933, the bottom of the upper plate 931 is connected with balls 935 in a rolling mode, the upper plate 931 and the lower plate 933 are provided with outer rings 934, two ends of each outer ring 934 are respectively connected with the bottom of the upper plate 931 and the top of the lower plate 933 in a sliding mode, the diameters of the upper plate 931 and the lower plate 933 are the same, the balls 935 are arranged between the upper plate 931 and the lower plate 933, and the balls 935 are connected with the inner ring 932 in a rolling mode;

prevent blocking device 95 includes bull stick 951, and the bottom fixedly connected with scraper 952 of bull stick 951, the one end fixedly connected with cleaning sheet 953 of outer loop 934 axis is kept away from to bull stick 951, and the one end fixedly connected with of keeping away from outer loop 934 axis of cleaning sheet 953 scrapes the hook 954, scrapes and has seted up cross slot 955 between the hook 954.

When the zipper puller is used, the bidirectional motor 81 and the motor 91 are started to convey a mixture of the coarse material plate and the zipper puller to the inclined sieve plate 86 through the feeding plate 4, the inclination angle of the inclined sieve plate 86 is 45 degrees, the mixture of the coarse material plate and the zipper puller slides downwards along with the inclined plane, the zipper puller can fall through the first sieve hole 89 in the sliding process, the length and the width of the coarse material plate are larger than the diameter of the first sieve hole 89, the coarse material plate cannot fall through the first sieve hole, so that the zipper puller is sorted out, meanwhile, the output end of the bidirectional motor 81 sequentially drives the first rotating shaft 82 and the collision lug 83 to rotate, the bulge of the collision lug 83 impacts the collision rod 84, the collision rod 84 has certain elasticity, and the collision rod 84 drives the inclined sieve plate 86 to move along the impacting direction, the shift rod 884 and the spring 883 on one side of the inclined sieve plate 86 move along with the shift rod 884, the shift rod 884 penetrates through the inside of the limit cylinder 885 and is in sliding connection with the inside of the limit cylinder 885, one end of the shift rod 884 is provided with a stop block 886 to continuously move and is far away from the limit cylinder 885, the other end of the shift rod 884 is provided with the spring 883 and a connecting block 881 to be continuously close to the right side of the limit cylinder 885, two ends of the spring 883 are respectively and fixedly connected with the bottoms of the top cylinder 882 and the limit cylinder 885, the spring is continuously compressed at the moment, in the process, the shift rod 884 and the limit cylinder 885 play a role in limiting, the inclined sieve plate 86 keeps moving horizontally as much as possible, the spring 883 contracts to continuously buffer impact force generated by collision, a protection device is used for prolonging the service life;

in the collision process, the inclined sieve plate 86 with elasticity mainly translates along the left direction and the right direction, after the collision rod 84 with elasticity collides, the collision rod 84 collides again in the recovery process, the collision angles are different, partial vertical force can be generated, at this time, the inclined sieve plate 86 can also slightly shake in the vertical direction, so that the blocked articles in the first sieve hole 89 can be shaken off, the sieving capability of the first sieve hole 89 is maintained, the moving zipper head can more easily fall through the first sieve hole 89, the inclined sieve plate 86 translates along the direction of the limiting cylinder 885 under the vertical force, the baffle plate 87 is positioned right above the inclined sieve plate 86, a wire gap is reserved between the baffle plate 87 and the inclined sieve plate 86, the coarse material plate and the zipper head can not fall from the gap, the inclined sieve plate 86 and the baffle plate 87 move relatively, the baffle plate 87 pushes the materials remained on the first sieve hole 89 to move, so as to clean the first sieve hole 89, the materials are prevented from blocking the first sieve hole 89, and the sieving capability of the materials is improved;

the coarse material plate which is not completely screened and the zipper head slide from the inclined screen plate 86 to move the screen cylinder 94, the zipper head can fall into the zipper head collecting barrel 7 right below from a second screen hole 97 at the bottom of the screen cylinder 94, the coarse material plate can enter the coarse material plate collecting barrel 6 through the strip-shaped screen groove 96, the height of the strip-shaped screen groove 96 is larger than that of the coarse material plate, the height of the strip-shaped screen groove 96 is smaller than that of the zipper head, therefore, the zipper head can not pass through the strip-shaped screen groove 96, the second rotating shaft 92 drives the screen cylinder 94 to rotate at high speed, under the action of centrifugal force, a large number of coarse material plates and zipper heads are thrown to the edge of the screen cylinder 94, so that the coarse material plates can be thrown out from the strip-shaped screen groove 96 conveniently, but the strip-shaped screen groove 96 is easily blocked by the large number of coarse material plates and zipper heads, second pivot 92 has inner ring 932 in proper order this moment, ball 935, outer loop 934 rotates, because outer loop 934 is driven by ball 935, kinetic energy can be consumed in the sliding friction, so the slew velocity of outer loop 934 will be slower than the slew velocity of inner ring 932, fixed connection's bull stick 951 takes place relative rotation on sieve section of thick bamboo 94 and the inner ring 932 this moment, the scraper blade 952 of bull stick 951 bottom can scrape and take the motion with the coarse fodder board on the sieve section of thick bamboo 94 surface, in order to prevent that the coarse fodder board blocks up second sieve mesh 97, also be convenient for promote to draw the zipper head and make it fall down from the second sieve mesh, the hook 954 of scraping of sieve section of thick bamboo edge pile up of being convenient for of bull stick 951 one end is colluded away, keep bar sieve groove 96's screening ability, promote screening ability.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement 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 zip fastener raw and other materials screening machine, includes bottom plate (1), its characterized in that: the utility model discloses a vibrating screen, including bottom plate (1), the top fixedly connected with of bottom plate (1) first backup pad (2), the bottom fixedly connected with bracing piece (3) of bottom plate (1), the top fixedly connected with feed plate (4) of first backup pad (2), the top fixedly connected with second backup pad (5) of bottom plate (1), the bottom fixedly connected with centrifugation screening mechanism (9) of second backup pad (5), be provided with vibrations screening mechanism (8) under feed plate (4), one side of vibrations screening mechanism (8) and the one end fixed connection of bracing piece (3), the top fixedly connected with coarse fodder board collecting vessel (6) of bottom plate (1), the side fixedly connected with of coarse fodder board collecting vessel (6) draws zipper head collecting vessel (7).

2. The zipper raw material screening machine according to claim 1, characterized in that: vibrations screening mechanism (8) are including two-way motor (81), the first pivot (82) of output fixedly connected with of two-way motor (81), the top fixedly connected with collision lug (83) of first pivot (82), the top fixedly connected with separation blade (87) of bracing piece (3), the left side of collision lug (83) is provided with collision bar (84), top fixedly connected with slope sieve board (86) of collision bar (84), be provided with under slope sieve board (86) and draw zipper head collection box (85), draw zipper head to collect one side of box (85) and bracing piece (3) and be close to one side fixed connection of slope sieve board (86), the spacing buffer of one side fixedly connected with (88) of slope sieve board (86) is that spacing buffer (88) runs through and is provided with first sieve mesh (89).

3. The zipper raw material screening machine as claimed in claim 2, wherein: centrifugal screening mechanism (9) includes motor (91), output fixedly connected with second pivot (92) of motor (91), the bottom fixedly connected with ball of second pivot (92) rotates piece (93), the bottom fixedly connected with sieve section of thick bamboo (94) that the ball rotated piece (93), the side fixedly connected with anti-clogging device (95) of ball rotation piece (93), bar sieve groove (96) have been seted up to the side of sieve section of thick bamboo (94), second sieve mesh (97) have been seted up to the bottom of sieve section of thick bamboo (94).

4. The zipper raw material screening machine as claimed in claim 3, wherein: the ball rotates piece (93) and includes upper plate (931), the bottom fixedly connected with inner ring (932) of upper plate (931), the bottom fixedly connected with hypoplastron (933) of inner ring (932), the bottom roll connection of upper plate (931) has ball (935), upper plate (931) and hypoplastron (933) piece are provided with outer loop (934), the both ends of outer loop (934) respectively with the bottom of upper plate (931), the top sliding connection of hypoplastron (933).

5. The zipper raw material screening machine as claimed in claim 4, wherein: prevent blocking device (95) including bull stick (951), the bottom fixedly connected with scraper blade (952) of bull stick (951), the one end fixedly connected with cleaning sheet (953) of outer loop (934) axis is kept away from in bull stick (951), hook (954) is scraped to the one end fixedly connected with of keeping away from outer loop (934) axis of cleaning sheet (953), scrape and seted up cross slot (955) between hook (954).

6. The zipper raw material screening machine as claimed in claim 2, wherein: the inclination angle of the inclined sieve plate (86) is forty-five degrees, the four baffle plates (87) are arranged, two baffle plates (87) are arranged on one side of the inclined sieve plate (86), and a limiting buffer device (88) is arranged between the two baffle plates (87) on the same side of the inclined sieve plate (86).

7. The zipper raw material screening machine according to claim 3, characterized in that: the strip-shaped screen slots (96) are three in number, the three strip-shaped screen slots (96) are equidistantly distributed in the circumferential direction of the screen cylinder (94), the anti-blocking devices (95) are two in number, and the two anti-blocking devices (95) are equidistantly distributed in the circumferential direction of the second rotating shaft (92).

8. The zipper raw material screening machine as claimed in claim 4, wherein: the diameters of the upper plate (931) and the lower plate (933) are the same, a ball bearing (935) is arranged between the upper plate (931) and the lower plate (933), and the ball bearing (935) is in rolling connection with the inner ring (932).