Plastic raw material screening apparatus for optical film production

Abstract

The present invention relates to the technical field of screening apparatuses, and disclosed is a plastic raw material screening apparatus for optical film production. The apparatus comprises a box body, an inner wall of the box body being fixedly connected to a vibration motor, an upper surface of the box body being connected to a hopper, an inner wall of the box body being rotatably connected to a fixing frame, an inner wall of the fixing frame being fixedly connected to a partition plate, filter screen plates being above and below the partition plate, the filter screen plates being fixedly connected to the fixing frame, a side wall of the box body being in communication with a double-layer discharge box, two side walls of the double-layer discharge box being provided with a first discharge hole and a second discharge hole, respectively, and a side wall of the fixing frame being fixedly connected to a rotating shaft. The present invention, by means of providing a fixing frame, partition plate and filter screen plates which are used together, can, when an upper filter screen plate is blocked, directly perform a flip, to flip a lower filter screen plate to above, which is more convenient and faster than replacing the filter screen plate, and saves time.

Description

A plastic raw material screening device for optical film production Technical Field

[0001] The present invention relates to the technical field of screening devices, in particular to a plastic raw material screening device for producing optical films. Background Art

[0002] When producing optical films, high quality requirements are placed on the raw materials. The plastic raw material particles used to produce optical films usually need to be screened to control the particle size. During the plastic processing and molding process, the particle size has an important impact on the performance and quality of the final product. Screening can control the uniformity and consistency of the plastic particles, ensuring stability during the processing and molding quality.

[0003] In a biodegradable plastic cup raw material screening device disclosed in the authorization announcement number CN217802678U, it includes a screening box, a feeding port is provided on the top of the screening box, a discharging port is provided on the bottom of the screening box, a carrying ring is fixedly connected to the inner wall of the screening box, and a screen assembly is provided on the top of the carrying ring; a pick-up and placement groove is provided on one side of the screening box corresponding to the screen assembly, and a blocking assembly is provided in the pick-up and placement groove, and the blocking assembly includes a blocking block, one side of the blocking block is plugged into the pick-up and placement groove, and the other side is symmetrically fixed with a push-pull plate; two sides of the blocking block are provided with There are mutually connected through grooves, and the push-pull plate is provided with a sleeve hole, and a screw is passed through the sleeve hole. One end of the screw is fixedly connected to the outer wall of the screening box, and the other end is sleeved with a nut, and a rotating handle is fixed to the nut; the above device is convenient for replacing the screen after the screen is blocked. After the screen is blocked, a new screen can be quickly replaced, so that the device can be quickly used again. In this way, the problem of wasting time in cleaning the screen in the screening device can be avoided, but it takes a certain amount of time to quickly replace the screen. Therefore, the device can be improved.

[0004] To this end, we propose a plastic raw material screening device for optical film production to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a plastic raw material screening device for optical film production. The filter plate below can be directly flipped over, which is more convenient and faster than replacing the filter plate and saves more time.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A plastic raw material screening device for optical film production includes a box body, the inner wall of the box body is fixedly connected to a vibration motor, the upper surface of the box body is connected to a hopper, the inner wall of the box body is rotatably connected to a fixed frame, and the inner wall of the fixed frame is fixedly connected to a partition, filter screens are provided above and below the partitions, and the filter screens are fixedly connected to the fixed frame, the side walls of the box body are connected to a double-layer discharge box, and the side walls of the double-layer discharge box are respectively provided with a first discharge hole and a second discharge hole, one side wall of the fixed frame is fixedly connected to a rotating shaft, and one end of the rotating shaft passes through the box body and extends to the outside of the box body, a driving mechanism is provided on one side of the rotating shaft outside the box body, and a limiting component is provided on one side of the driving mechanism, and the inner wall of the hopper is fixedly connected to a material discharge control component.

[0008] Preferably, the driving mechanism includes a driving motor, and the driving end of the driving motor is fixedly connected to a rotating rod, the outer wall fixing sleeve of the rotating rod is provided with a missing gear, one end of the rotating shaft located outside the box body is fixedly connected to a gear, the outer wall fixing sleeve of the box body is provided with a protective cover, and the driving motor is fixedly connected to the protective cover.

[0009] Preferably, the limit assembly includes a limit rod arranged on one side of the box body, and two limit holes are provided on one side wall of the fixing frame. One end of the limit rod is fixedly connected to a fixing sleeve, and a cam is provided in the fixing sleeve. The fixing sleeve of the cam is provided on the outer wall of the rotating rod, and the outer wall sleeve of the limit rod is provided with a first spring, and one end of the first spring is fixedly connected to the box body, and the other end of the first spring is fixedly connected to the fixing sleeve. The other end of the limit rod passes through the box body and extends to the inside of the limit hole.

[0010] Preferably, the material discharge control component includes a bottom plate fixed to the inner wall of the hopper, and a sliding cavity is opened inside the bottom plate, the inner wall of the sliding cavity is slidably connected with a baffle, and one side of the baffle passes through the hopper, and the upper surfaces of the bottom plate and the baffle are both provided with strip holes.

[0011] Preferably, the outer wall fixed sleeve of the rotating rod is provided with a special-shaped wheel, and one side wall of the baffle is fixedly connected to a pressure rod, and one end of the pressure rod passes through the protective cover and extends to one side of the special-shaped wheel. The outer wall sleeve of the pressure rod located inside the protective cover is provided with a second spring and a fixing ring, and the fixing ring is fixedly connected to the pressure rod.

[0012] Preferably, a groove is formed at one end of the pressure rod, and a ball is arranged in the groove, and a side wall of the ball abuts against the special-shaped wheel.

[0013] Preferably, an inclined plate is fixedly connected to the inner wall of the box body, and a third discharge hole is provided on the side wall of the box body above the inclined plate.

[0014] Preferably, a cleaning hole is provided on the outer wall of the box body, and a blocking door is hingedly connected to the inner wall of the cleaning hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention cooperates with the setting of a fixing frame, a partition and a filter screen plate, etc., so that when the upper filter screen plate is blocked, it can be directly turned over, and the lower filter screen plate can be turned over. This is more convenient and faster than replacing the filter screen plate and saves more time.

[0017] The present invention cooperates with a driving motor, a rotating rod and a gear, etc., and can be flipped by the driving motor without manual operation. For convenience, when in use, the driving motor can be started, and the started driving motor drives the rotating rod to rotate. The rotating rotating rod drives the missing gear, and the missing gear rotates to a position engaged with the gear. At this time, the rotating missing gear rotates the fixed frame through the gear, so that the fixed frame is reversed. The reversed fixed frame drives the filter screen plate to flip, so that the upper filter screen plate rotates to the bottom and the lower filter screen plate rotates to the top.

[0018] The present invention provides a limit rod for use in conjunction with a cam, etc., so that after the upper filter screen panel rotates to the lower side and the lower filter screen panel rotates to the upper side, one end of the limit rod will be inserted into the limit hole to limit the fixing frame. In this way, the position of the fixing frame after flipping can be ensured, and the position of the filter screen panel can be ensured to be horizontal, so as to avoid the problem that the filter screen panel is tilted and the raw materials are accumulated on one side of the filter screen panel during filtering, thereby affecting the filtration of the filter screen panel. Moreover, when flipping, there is no need to manually release the limit of the limit rod, and the limit can be released automatically, which is convenient and quick.

[0019] The present invention sets a bottom plate baffle for use in conjunction with the strip holes. The bottom plate can block the discharge of raw materials in the hopper, so that the raw materials in the hopper can be discharged in a dispersed manner, and then the raw materials can be dispersed and fall on the filter screen, thereby facilitating the filtration of the filter screen; by setting a special-shaped wheel for use in conjunction with a pressure rod, the discharge of the hopper can be automatically closed when the filter screen is flipped, thereby further facilitating the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of the three-dimensional structure of a plastic raw material screening device for optical film production proposed by the present invention;

[0021] FIG2 is a schematic diagram of the overall structure of a plastic raw material screening device for optical film production proposed by the present invention;

[0022] FIG3 is a schematic front cross-sectional view of a plastic raw material screening device for optical film production according to the present invention;

[0023] FIG4 is an enlarged schematic structural diagram of point A in FIG3 ;

[0024] FIG5 is an enlarged schematic structural diagram of point B in FIG3 ;

[0025] FIG6 is a side view schematic diagram of a plastic raw material screening device for optical film production according to the present invention;

[0026] FIG7 is a schematic side cross-sectional view of a plastic raw material screening device for optical film production according to the present invention;

[0027] FIG8 is a schematic diagram of a partial structure of a plastic raw material screening device for optical film production proposed by the present invention.

[0028] Figure numerals: 1. Box body; 2. Vibration motor; 3. Hopper; 4. Fixed frame; 5. Partition; 6. Filter screen; 7. Double-layer discharge box; 8. First discharge hole; 9. Second discharge hole; 10. Rotating shaft; 11. Driving motor; 12. Rotating rod; 13. Missing gear; 14. Gear; 15. Protective cover; 16. Limiting rod; 17. Limiting hole; 18. Fixed sleeve; 19. Cam; 20. First spring; 21. Bottom plate; 22. Baffle; 23. Strip hole; 24. Special-shaped wheel; 25. Pressure rod; 26. Second spring; 27. Fixed ring; 28. Ball; 29. ​​Inclined plate; 30. Third discharge hole; 31. Baffle door. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Please refer to Figures 1 to 8. A plastic raw material screening device for optical film production includes a box body 1, the inner wall of the box body 1 is fixedly connected to a vibration motor 2, the upper surface of the box body 1 is connected to a hopper 3, the inner wall of the box body 1 is rotatably connected to a fixing frame 4, and the inner wall of the fixing frame 4 is fixedly connected to a partition 5, and filter screen plates 6 are provided above and below the partition 5, and the filter screen plates 6 are fixedly connected to the fixing frame 4, the side wall of the box body 1 is connected to a double-layer discharge box 7, and the side walls of the double-layer discharge box 7 are respectively provided with a first discharge hole 8 and a second discharge hole 9, one side wall of the fixing frame 4 is fixedly connected to a rotating shaft 10, and one end of the rotating shaft 10 passes through the box body 1 and extends to the outside of the box body 1, a driving mechanism is provided on one side of the rotating shaft 10 located outside the box body 1, and a limiting component is provided on one side of the driving mechanism, and the inner wall of the hopper 3 is fixedly connected to a material discharge control component.

[0031] From the above structure, it can be seen that by setting the fixing frame 4, the partition 5 and the filter screen plate 6, etc., when the upper filter screen plate 6 is blocked, it can be directly flipped over to flip the lower filter screen plate 6 upward. This is more convenient and faster than replacing the filter screen plate 6, and saves more time.

[0032] Furthermore, the driving mechanism includes a driving motor 11, and the driving end of the driving motor 11 is fixedly connected to a rotating rod 12, the outer wall fixed sleeve of the rotating rod 12 is provided with a missing gear 13, and one end of the rotating shaft 10 outside the box body 1 is fixedly connected to a gear 14, and the outer wall fixed sleeve of the box body 1 is provided with a protective cover 15, and the driving motor 11 is fixedly connected to the protective cover 15; by arranging the driving motor 11, the rotating rod 12 and the gear 14 to be used in conjunction with each other, the driving motor 11 can be turned over without manual operation, for convenience, when in use, the driving motor 11 can be started, and the started driving motor 11 drives the rotating rod 12 to rotate, and the rotating rotating rod 12 drives the missing gear 13, and the missing gear 13 rotates to a position meshing with the gear 14. At this time, the rotating missing gear 13 rotates the fixed frame 4 through the gear 14, so that the fixed frame 4 is reversed, and the reversed fixed frame 4 drives the filter screen plate 6 to turn over, so that the upper filter screen plate 6 rotates to the bottom and the lower filter screen plate 6 rotates to the top.

[0033] Furthermore, the limit assembly includes a limit rod 16 arranged on one side of the box body 1, and two limit holes 17 are provided on one side wall of the fixing frame 4. One end of the limit rod 16 is fixedly connected to a fixing sleeve 18, and a cam 19 is provided in the fixing sleeve 18. The fixing sleeve of the cam 19 is provided on the outer wall of the rotating rod 12. The outer wall of the limit rod 16 is provided with a first spring 20, and one end of the first spring 20 is fixedly connected to the box body 1, and the other end of the first spring 20 is fixedly connected to the fixing sleeve 18. The other end of the limit rod 16 passes through the box body 1 and extends to the internal setting of the limit hole 17; by setting the limit rod 16 and the cam 19, etc., after the upper filter screen 6 is rotated to the bottom and the lower filter screen 6 is rotated to the top, the limit rod 16 One end of the filter 6 will be inserted into the limit plug hole 17 to limit the fixing frame 4. In this way, the position of the fixing frame 4 after flipping can be guaranteed, and the position of the filter plate 6 can be guaranteed to be level, so as to prevent the filter plate 6 from tilting and causing the filter plate 6 to accumulate on one side of the filter plate 6 during filtering, thereby affecting the filtration of the filter plate 6. Moreover, when flipping, there is no need to manually release the limit of the limit plug rod 16, and the limit can be released automatically, which is convenient and quick. After the cam 19 rotates a certain angle, the rotating cam 19 pushes the fixing sleeve 18, so that the fixing sleeve 18 moves, and the moving fixing sleeve 18 drives the limit plug rod 16 to move, so that the limit plug rod 16 disengages from the limit plug hole 17, and then the limit plug rod 16 releases the limit on the fixing frame 4.

[0034] Furthermore, the material discharge control component includes a bottom plate 21 fixed to the inner wall of the hopper 3, and a sliding cavity is opened inside the bottom plate 21, and the inner wall of the sliding cavity is slidably connected with a baffle 22, and one side of the baffle 22 is set through the hopper 3, and the upper surfaces of the bottom plate 21 and the baffle 22 are both provided with strip holes 23; by setting the bottom plate 21, the baffle 22 and the strip holes 23 in conjunction, the bottom plate 21 can block the discharge of raw materials in the hopper 3, so that the raw materials in the hopper 3 can be discharged in a dispersed manner, and then the raw materials can be dispersed and fall on the filter mesh plate 6, thereby facilitating the filtration of the filter mesh plate 6.

[0035] Furthermore, the outer wall of the rotating rod 12 is fixedly sleeved with a special-shaped wheel 24, and a pressure rod 25 is fixedly connected to the side wall of one side of the baffle 22, and one end of the pressure rod 25 passes through the protective cover 15 and extends to one side of the special-shaped wheel 24. The outer wall of the pressure rod 25 inside the protective cover 15 is sleeved with a second spring 26 and a fixing ring 27, and the fixing ring 27 is fixedly connected to the pressure rod 25; by arranging the special-shaped wheel 24 and the pressure rod 25 for use in conjunction with each other, the hopper 3 can be automatically closed when the filter screen plate 6 is flipped, thereby further facilitating the device During use, when the upper filter screen plate 6 is blocked, the drive motor 11 can be started, and the started drive motor 11 drives the rotating rod 12 to rotate, and the rotating rotating rod 12 drives the missing gear 13, the cam 19 and the special-shaped wheel 24 to rotate. After the special-shaped wheel 24 rotates a certain angle, the pressure rod 25 loses its obstruction. At this time, the second spring 26 facilitates the pushing of the pressure rod 25 and the baffle 22 to move. The moving baffle 22 causes the strip hole 23 on the baffle 22 to be staggered with the strip hole 23 on the bottom plate 21, so that the hopper 3 is closed.

[0036] Furthermore, a groove is provided at one end of the pressure rod 25, and a ball 28 is provided in the groove, and one side wall of the ball 28 is against the shaped wheel 24; by providing the ball 28, the friction between one end of the pressure rod 25 and the shaped wheel 24 can be reduced to ensure that one end of the pressure rod 25 and the shaped wheel 24 are in contact.

[0037] Furthermore, an inclined plate 29 is fixedly connected to the inner wall of the box body 1, and a third discharge hole 30 is opened on the side wall of the box body 1 above the inclined plate 29; by providing the inclined plate 29, it is convenient to collect the material dropped from the filter screen plate 6 below.

[0038] Furthermore, a cleaning hole is opened on the outer wall of the box body 1, and the inner wall hinge of the cleaning hole is connected to a baffle 31; by setting the baffle 31, after the filter screen plate 6 is flipped over, the baffle 31 can be opened to clean the material stuck in the filter screen plate 6 below.

[0039] In the present invention, when in use, the material falls into the box body 1 through the hopper 3, and the filter plate 6 above can filter the material falling into the box body 1. The filtered material passes through the double-layer discharge box 7, the first discharge hole 8 and the second discharge hole 9 to be discharged, thereby completing the filtration of the material;

[0040] When the upper filter screen plate 6 is blocked, the drive motor 11 can be started. The started drive motor 11 drives the rotating rod 12 to rotate. The rotating rotating rod 12 drives the missing gear 13, the cam 19 and the special-shaped wheel 24 to rotate. After the special-shaped wheel 24 rotates a certain angle, the pressure rod 25 loses its obstruction. At this time, the second spring 26 facilitates the push rod 25 and the baffle 22 to move. The moving baffle 22 makes the strip hole 23 on the baffle 22 staggered with the strip hole 23 on the bottom plate 21, so that the hopper 3 is closed.

[0041] After the cam 19 rotates a certain angle, the rotating cam 19 pushes the fixing sleeve 18, causing the fixing sleeve 18 to move. The moving fixing sleeve 18 drives the limiting rod 16 to move, causing the limiting rod 16 to disengage from the limiting hole 17, thereby releasing the limiting rod 16 from limiting the fixing frame 4.

[0042] After the limiting rod 16 releases the limit on the fixing frame 4, the missing gear 13 rotates to a position meshing with the gear 14. At this time, the rotating missing gear 13 rotates the fixing frame 4 through the gear 14, causing the fixing frame 4 to reverse. The reversed fixing frame 4 drives the filter screen plate 6 to flip, so that the upper filter screen plate 6 rotates to the bottom and the lower filter screen plate 6 rotates to the top;

[0043] Before the filter screen plate 6 is flipped into place, the cam 19 is rotated to a position where it does not press against the fixing sleeve 18. At this time, the first spring 20 will pull the limiting rod 16. After the upper filter screen plate 6 is rotated downward and the lower filter screen plate 6 is rotated upward, one end of the limiting rod 16 will be inserted into the limiting hole 17 to limit the fixing frame 4. In this way, the position of the fixing frame 4 after flipping can be guaranteed, and then the position of the filter screen plate 6 can be guaranteed to be horizontal, so as to avoid the problem that the filter screen plate 6 tilts and the raw materials are accumulated on one side of the filter screen plate 6 when the filter screen plate 6 is filtering, thereby affecting the filtration of the filter screen plate 6.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A plastic raw material screening device for optical film production, comprising a box body (1), the inner wall of the box body (1) is fixedly connected with a vibration motor (2), and the upper surface of the box body (1) is communicated with a hopper (3), characterized in that, The inner wall of the box body (1) is rotatably connected with a fixing frame (4), and a partition plate (5) is fixedly connected to the inner wall of the fixing frame (4). Filter plates (6) are arranged above and below the partition plate (5), and the filter plates (6) are fixedly connected to the fixing frame (4). A double-layer discharging box (7) is communicated with the side wall of the box body (1), and a first discharging hole (8) and a second discharging hole (9) are respectively opened on the two side walls of the double-layer discharging box (7). A rotating shaft (10) is fixedly connected to one side wall of the fixing frame (4), and one end of the rotating shaft (10) penetrates through the box body (1) and extends to the outside of the box body (1). A driving mechanism is arranged on one side of the rotating shaft (10) located outside the box body (1), and a limiting component is arranged on one side of the driving mechanism. A blanking control component is fixedly connected to the inner wall of the hopper (3).

2. The plastic raw material screening device for optical film production according to claim 1, characterized in that, The driving mechanism includes a driving motor (11), and a rotating rod (12) is fixedly connected to the driving end of the driving motor (11). A missing gear (13) is fixedly sleeved on the outer wall of the rotating rod (12). One end of the rotating shaft (10) located outside the box body (1) is fixedly connected with a gear (14). A protective cover (15) is fixedly sleeved on the outer wall of the box body (1), and the driving motor (11) is fixedly connected to the protective cover (15).

3. An optical film production plastic raw material screening device according to claim 2, characterized in that, The limiting component includes a limiting insertion rod (16) arranged on one side of the box body (1). Two limiting insertion holes (17) are opened on one side wall of the fixing frame (4). One end of the limiting insertion rod (16) is fixedly connected with a fixing sleeve (18), and a cam (19) is arranged inside the fixing sleeve (18). The cam (19) is fixedly sleeved on the outer wall of the rotating rod (12). A first spring (20) is sleeved on the outer wall of the limiting insertion rod (16), and one end of the first spring (20) is fixedly connected to the box body (1). The other end of the first spring (20) is fixedly connected to the fixing sleeve (18). The other end of the limiting insertion rod (16) penetrates through the box body (1) and extends to be arranged inside the limiting insertion hole (17).

4. An optical film production plastic raw material screening device according to claim 3, characterized in that, The blanking control component includes a bottom plate (21) fixed to the inner wall of the hopper (3), and a sliding cavity is opened inside the bottom plate (21). A baffle (22) is slidably connected to the inner wall of the sliding cavity, and one side of the baffle (22) penetrates through the hopper (3). Strip-shaped holes (23) are opened on the upper surfaces of the bottom plate (21) and the baffle (22).

5. An optical film production plastic raw material screening device according to claim 4, characterized in that, A special-shaped wheel (24) is fixedly sleeved on the outer wall of the rotating rod (12). A pressing rod (25) is fixedly connected to one side wall of the baffle (22), and one end of the pressing rod (25) penetrates through the protective cover (15) and extends to be arranged on one side of the special-shaped wheel (24). A second spring (26) and a fixing ring (27) are sleeved on the outer wall of the pressing rod (25) located inside the protective cover (15), and the fixing ring (27) is fixedly connected to the pressing rod (25).

6. The plastic raw material screening device for optical film production according to claim 5, characterized in that, A groove is opened at one end of the pressing rod (25), and a ball (28) is arranged inside the groove. One side wall of the ball (28) abuts against the special-shaped wheel (24).

7. The plastic raw material screening device for optical film production according to claim 1, characterized in that, The inner wall of the box body (1) is fixedly connected with an inclined plate (29), and a third discharge hole (30) is formed in the side wall of the box body (1) above the inclined plate (29).

8. An optical film production plastic raw material screening device according to claim 1, characterized in that, A cleaning hole is formed in the outer wall of the box body (1), and a retaining door (31) is hinged to the inner wall of the cleaning hole.

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