Feeding and filtering device of plastic film blowing machine

Abstract

The invention belongs to the technical field of separation, and particularly relates to a feeding and filtering device of a plastic film blowing machine, which adopts the following scheme that the feeding and filtering device comprises a filtering barrel, a plurality of supporting legs are connected to the circumferential outer wall of the filtering barrel through bolts, a discharging opening is formed in the bottom of the filtering barrel, and a feeding opening is formed in the position, close to the top, of one side of the filtering barrel; a guide plate is welded to the bottom of the feeding opening, a support is connected to the top of the filter barrel through bolts, a filter mechanism is arranged at the bottom of the support and comprises a motor, a rotating rod, a frame, a rotating disc and a plurality of filter plates, the top of the rotating rod is rotationally connected with the support through a bearing, and the top of the support is connected with the motor through bolts. According to the plastic filtering device, accumulated plastic can be further treated conveniently, the situation that the filtering effect of the plastic is affected due to the fact that the plastic is accumulated together is prevented, in addition, the plastic clamped on the filtering holes of the filtering plate can be treated through the scraping rods, and the situation that the filtering plate is blocked due to the fact that the plastic is clamped on the filtering holes of the filtering plate is prevented.

Description

Technical Field

[0001] The invention relates to the field of separation, in particular to a feeding filter device for a plastic film blowing machine. Background Art

[0002] The filtering device in the film blowing machine is mainly a main barrel, in which a cylinder is arranged, and several material holes are opened on the peripheral wall of the cylinder. A diversion shuttle is arranged in the cylinder, and a filter screen is installed on the outer wall of the cylinder. However, the filter screen is installed on the outer wall of the cylinder, resulting in incomplete filtration; and the cleaning of the raw materials in the cylinder is complicated, time-consuming and labor-intensive.

[0003] After searching, the Chinese patent application with application publication number CN212039538U discloses a feeding filter device for a plastic film blowing machine, including a barrel and a first filter barrel disposed in the barrel, the outer surface of the first filter barrel is densely covered with first material holes, a second filter barrel detachably connected to the barrel is inserted in the first filter barrel, a filter screen is embedded between the first filter barrel and the second filter barrel, the inner surface of the filter screen fits the outer surface of the second filter barrel, the outer surface of the filter screen fits the inner surface of the first filter barrel, the outer surface of the second filter barrel is densely covered with second material holes, and the corresponding second material holes are coaxially arranged with the first material holes and have the same aperture. This patent has the advantage that the filter screen is not easily damaged.

[0004] When filtering plastic raw materials, the existing device usually places most of the plastic raw materials into the interior of the device and processes the plastic raw materials through the filtering mechanism inside the device. However, during the filtering process, most of the plastics will pile up together, which will cause the fluidity of the plastic raw materials to be poor, thereby affecting the filtering effect of the plastic raw materials. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A feeding and filtering device for a plastic film blowing machine comprises a filter barrel, a circumferential outer wall of the filter barrel being connected to a plurality of legs by bolts, a discharge port being provided at the bottom of the filter barrel, a feed port being provided at a position close to the top of one side of the filter barrel, a guide plate being welded to the bottom of the feed port, a bracket being connected to the top of the filter barrel by bolts, and a filtering mechanism being provided at the bottom of the bracket.

[0007] Preferably, the filtering mechanism includes a motor, a rotating rod, a frame, a rotating disk and a plurality of filter plates, and the top of the rotating rod is rotatably connected to the bracket via a bearing, the top of the bracket is connected to the motor via bolts, one end of the motor is fixedly connected to the top plate of the rotating rod, the bottom of the rotating rod is connected to the top of the rotating disk via bolts, the frame is connected to the inner wall of the filter barrel via bolts, a slide groove is provided on one side of the frame, the slide groove is slidably connected to the rotating disk, a plurality of through openings are penetrated through the top of the rotating disk, and the inner wall of the through openings is welded to the filter plate.

[0008] Preferably, a scraper is connected to the top of the frame via bolts, and a plurality of scraper rods are provided at the bottom of the scraper, the bottoms of the scraper rods are in contact with the filter plate, and the cross-section of the scraper rods is rhombus-shaped.

[0009] Preferably, a cleaning mechanism is provided inside the filter barrel, and the cleaning mechanism is located below the filtering mechanism, and the cleaning mechanism and the filtering mechanism are matched with each other.

[0010] Preferably, the cleaning mechanism consists of a transmission assembly and a cleaning assembly, and the filtering mechanism and the cleaning assembly are connected via the transmission assembly.

[0011] Preferably, the cleaning assembly is composed of multiple cleaning plates and multiple brush wires, and the top of the cleaning plate is welded to the brush wires, the top of the brush wires is in contact with the bottom of the filter plate, and a telescopic rod is connected between one side of the cleaning plate and the inner wall of the filter barrel by bolts.

[0012] Preferably, the transmission assembly consists of a first top block, a second top block, a support, a connecting frame, a gear, a first rack and a second rack. One side of the connecting frame is connected to the inner wall of the filter barrel by bolts, and a rotating shaft is rotatably connected between the two opposite sides of the connecting frame through a bearing. The gear is fixedly sleeved on the outer wall of the rotating shaft, the top of the gear is meshed with the first rack, the top of the first rack is connected to the bottom of the cleaning plate by bolts, one side of the gear is meshed with the second rack, one side of the second rack is connected to the support by bolts, the bottom of the first top block is welded to the top of the support, the top of the second top block is connected to the bottom of the turntable by bolts, and a plurality of jacking ends are provided on the opposite sides of the first top block and the second top block, and the first top block and the second top block are matched.

[0013] Preferably, the circumferential inner wall of the filter barrel is connected to multiple support rods by bolts, and a connecting seat is connected between the multiple support rods by bolts. A limiting rod is connected between the connecting seat and the support by bolts. The limiting rod is made of telescopic material, and a spring is sleeved on the outer wall of the limiting rod.

[0014] The beneficial effects of the present invention are:

[0015] 1. The filter mechanism of the present invention is set up. When filtering the plastic feeding material, the plastic is transported to the inside of the filter barrel through the guide plate and the feed port. At this time, the motor is started, the motor drives the rotating rod to rotate, and the rotating disk drives the filter plate to rotate with the rotation of the rotating rod, so that the falling point of the plastic can be changed through the rotation of the filter plate. At the same time, the centrifugal force generated by the rotation of the filter plate can separate the concentrated plastic, so as to improve the filtering effect of the plastic and prevent the plastic from being concentrated together and clogging the filter plate, thereby affecting the filtering efficiency of the plastic. During the period, when the filter plate is rotating, the plastic will rotate with the rotation of the filter plate. At this time, the scraper rod will scrape the plastic evenly, so as to further process the accumulated plastic and prevent the plastic from being accumulated together and affecting the filtering effect of the plastic. In addition, the scraper rod can process the plastic stuck on the filter hole of the filter plate to prevent the plastic from being stuck on the filter hole of the filter plate and clogging the filter plate.

[0016] 2. The present invention provides a filtering mechanism and a cleaning mechanism. When the rotary disk rotates, the second top block rotates with the rotation of the rotary disk. Since the second top block and the first top block are provided with a plurality of jacking ends on one side opposite to the second top block, when the second top block rotates, the first top block drives the support to move downward under the action of the jacking end, and the second rack moves downward with the downward movement of the support. When the second rack moves downward, the second rack drives the gear to rotate through meshing, and when the gear rotates, the gear drives the first rack to move laterally through meshing, and the cleaning plate drives the brush wire to move with the movement of the first rack, so that the bottom of the filter plate can be processed by the brush wire, and when the second rack moves upward, the cleaning plate drives the brush wire to move in the opposite direction, so that the bottom of the filter plate can be processed by the reciprocating movement of the cleaning plate, so as to eject the plastic stuck in the filter hole, thereby improving the filtering effect of the plastic and preventing the plastic from being stuck in the filter hole and causing the filter plate to be blocked, thereby affecting the filtering efficiency of the plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a feeding and filtering device for a plastic film blowing machine proposed by the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of a feeding filter device for a plastic film blowing machine proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a filtering mechanism of a feeding filtering device for a plastic film blowing machine proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a filter assembly of a feeding filter device for a plastic film blowing machine proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of the cleaning mechanism structure of a feeding filter device for a plastic film blowing machine proposed by the present invention;

[0022] Figure 6 This is a schematic diagram of the transmission component structure of a feeding and filtering device for a plastic film blowing machine proposed by the present invention;

[0023] Figure 7 The present invention is a partial structural schematic diagram of a feeding and filtering device for a plastic film blowing machine.

[0024] In the attached drawings: 1. filter barrel; 2. support leg; 3. feed port; 4. guide plate; 5. bracket; 6. filtering mechanism; 7. cleaning mechanism; 8. discharge port; 9. motor; 10. rotating rod; 11. frame; 12. scraper; 13. scraper rod; 14. slide; 15. turntable; 16. through port; 17. filter plate; 18. transmission assembly; 19. cleaning plate; 20. brush wire; 21. gear; 22. support; 23. connecting seat; 24. support rod; 25. limit rod; 26. spring; 27. connecting frame; 28. rotating shaft; 29. ​​first rack; 30. first top block; 31. second rack; 32. second top block. DETAILED DESCRIPTION

[0025] Example 1, reference Figure 1-Figure 4 A feeding and filtering device for a plastic film blowing machine comprises a filter barrel 1, a plurality of legs 2 are connected to the circumferential outer wall of the filter barrel 1 by bolts, a discharge port 8 is provided at the bottom of the filter barrel 1, a feed port 3 is provided at one side of the filter barrel 1 near the top, and a guide plate 4 is welded to the bottom of the feed port 3, a bracket 5 is connected to the top of the filter barrel 1 by bolts, and a filtering mechanism 6 is provided at the bottom of the bracket 5.

[0026] On the basis of the above, the filtering mechanism 6 includes a motor 9, a rotating rod 10, a frame 11, a turntable 15 and a plurality of filter plates 17, and the top of the rotating rod 10 is rotatably connected to the bracket 5 through a bearing, the top of the bracket 5 is connected to the motor 9 through bolts, one end of the motor 9 is fixedly connected to the top plate of the rotating rod 10, the bottom of the rotating rod 10 is connected to the top of the turntable 15 through bolts, the frame 11 is connected to the inner wall of the filter barrel 1 through bolts, a slide groove 14 is provided on one side of the frame 11, the slide groove 14 is slidably connected to the turntable 15, a plurality of through openings 16 are opened through the top of the turntable 15, and the inner wall of the through opening 16 is welded to the filter plate 17.

[0027] On the basis of the above, a scraper 12 is connected to the top of the frame 11 by bolts, and a plurality of scraper rods 13 are arranged at the bottom of the scraper 12. The bottom of the scraper rod 13 contacts the filter plate 17. The cross-section of the scraper rod 13 is rhombus-shaped. The rotation of the filter plate 17 can change the landing point of the plastic. At the same time, the centrifugal force generated by the rotation of the filter plate 17 can separate the concentrated plastic so as to improve the filtering effect of the plastic and prevent the plastic from being concentrated together and clogging the filter plate, thereby affecting the filtering efficiency of the plastic. During this period, when the filter plate 17 rotates, the plastic will rotate with the rotation of the filter plate 17. At this time, the scraper rod 13 will scrape the plastic evenly so as to further process the accumulated plastic and prevent the plastic from piling up and affecting the filtering effect of the plastic. In addition, the scraper rod 13 can process the plastic stuck on the filter holes of the filter plate 17 to prevent the plastic from being stuck on the filter holes of the filter plate 17 and clogging the filter plate 17.

[0028] Example 2, reference Figure 1-Figure 7 , a feeding and filtering device for a plastic film blowing machine. Compared with Example 1, on the basis of Example 1, a cleaning mechanism 7 is provided inside the filter barrel 1, and the cleaning mechanism 7 is located below the filtering mechanism 6, and the cleaning mechanism 7 and the filtering mechanism 6 are matched with each other.

[0029] On the basis of the above, the cleaning mechanism 7 is composed of a transmission assembly 18 and a cleaning assembly, and the filtering mechanism 6 is connected to the cleaning assembly via the transmission assembly 18 .

[0030] On the basis of the above, the cleaning assembly is composed of multiple cleaning plates 19 and multiple brush wires 20, and the top of the cleaning plate 19 is welded to the brush wire 20, the top of the brush wire 20 is in contact with the bottom of the filter plate 17, and a telescopic rod is connected between one side of the cleaning plate 19 and the inner wall of the filter barrel 1 by bolts.

[0031] On the basis of the above, the transmission assembly 18 consists of a first top block 30, a second top block 32, a support 22, a connecting frame 27, a gear 21, a first rack 29 and a second rack 31. One side of the connecting frame 27 is connected to the inner wall of the filter barrel 1 by bolts, and the two opposite sides of the connecting frame 27 are rotatably connected with a rotating shaft 28 through a bearing. The gear 21 is fixedly sleeved on the outer wall of the rotating shaft 28, and the top of the gear 21 is meshed with the first rack 29. The top of the first rack 29 is connected to the bottom of the cleaning plate 19 by bolts. One side of the gear 21 is meshed with the second rack 31, and one side of the second rack 31 is connected to the support 22 by bolts. The bottom of the first top block 30 is welded to the top of the support 22, and the top of the second top block 32 is connected to the bottom of the turntable 15 by bolts. The first top block 30 and the second top block 32 are opposite to each other. A plurality of jacking ends are provided on the first top block 30 and the second top block 32, and a fit is formed between the first top block 30 and the second top block 32.

[0032] On the basis of the above, the circumferential inner wall of the filter barrel 1 is connected with multiple support rods 24 by bolts, and the multiple support rods 24 are connected with a connecting seat 23 by bolts. The connecting seat 23 and the support 22 are connected with a limiting rod 25 by bolts. The limiting rod 25 is made of telescopic material. The outer wall of the limiting rod 25 is sleeved with a spring 26. Through engagement, the gear 21 drives the first rack 29 to move laterally, and the cleaning plate 19 drives the brush wire 20 to move with the movement of the first rack 29, so as to facilitate the treatment of the bottom of the filter plate 17 by the brush wire 20. When the second rack 31 moves up, the cleaning plate 19 drives the brush wire 20 to move in the opposite direction, so that the bottom of the filter plate 17 can be treated by the reciprocating movement of the cleaning plate 19, so as to facilitate the ejection of the plastic stuck in the filter hole, thereby improving the filtering effect of the plastic and preventing the plastic from being stuck in the filter hole and causing the filter plate 17 to be blocked, thereby affecting the filtering efficiency of the plastic.

[0033] In summary, with the aid of the above technical solution of the present invention: when filtering the plastic feed, the plastic is transported to the inside of the filter barrel 1 through the guide plate 4 and the feed port 3. At this time, the motor 9 is started, the motor 9 drives the rotating rod 10 to rotate, and the rotating disk 15 drives the filter plate 17 to rotate with the rotation of the rotating rod 10, so that the falling point of the plastic can be changed by the rotation of the filter plate 17. At the same time, the centrifugal force generated by the rotation of the filter plate 17 can separate the concentrated plastic, so as to improve the filtering effect of the plastic and prevent the plastic from being concentrated. The plastic will be blocked together with the filter plate, thereby affecting the filtration efficiency of the plastic. During this period, when the filter plate 17 is rotating, the plastic will rotate with the rotation of the filter plate 17. At this time, the scraper 13 will scrape the plastic evenly, so as to further process the accumulated plastic and prevent the plastic from accumulating together and affecting the filtration effect of the plastic. In addition, the scraper 13 can process the plastic stuck on the filter hole of the filter plate 17 to prevent the plastic from being stuck on the filter hole of the filter plate 17 and clogging the filter plate 17. When the turntable 15 is rotating, the second top block 32 The second top block 32 and the first top block 30 are provided with a plurality of jacking ends on the opposite side thereof. Therefore, when the second top block 32 rotates, the first top block 30 drives the support to move downward under the action of the jacking ends, and the second rack 31 moves downward with the downward movement of the support 22. When the second rack 31 moves downward, the second rack 31 drives the gear to rotate through meshing, and when the gear 21 rotates, the gear 21 drives the first rack 29 to move horizontally through meshing, and the cleaning plate 19 drives the brush 29 to move horizontally. The brush wire 20 moves with the movement of the first rack 29, so that the bottom of the filter plate 17 can be processed by the brush wire 20, and when the second rack 31 moves upward, the cleaning plate 19 will drive the brush wire 20 to move in the opposite direction, so that the bottom of the filter plate 17 can be processed by the reciprocating movement of the cleaning plate 19, so as to eject the plastic stuck in the filter hole, thereby improving the filtering effect of the plastic and preventing the plastic from being stuck inside the filter hole and causing the filter plate 17 to be blocked, thereby affecting the filtering efficiency of the plastic. The filtered plastic will be discharged through the discharge port 8.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A feeding filter device for a plastic film blowing machine, comprising a filter barrel (1), wherein the outer circumferential wall of the filter barrel (1) is connected to a plurality of legs (2) by bolts, wherein: The bottom of the filter barrel (1) is provided with a discharge port (8), a side of the filter barrel (1) near the top is provided with a feed port (3), and a guide plate (4) is welded to the bottom of the feed port (3), the top of the filter barrel (1) is connected to a bracket (5) by bolts, and a filtering mechanism (6) is provided at the bottom of the bracket (5).

2. A feeding filter device for a plastic film blowing machine according to claim 1, characterized in that: The filtering mechanism (6) comprises a motor (9), a rotating rod (10), a frame (11), a rotating disk (15) and a plurality of filter plates (17), wherein the top of the rotating rod (10) is rotatably connected to the bracket (5) via a bearing, the top of the bracket (5) is connected to the motor (9) via bolts, one end of the motor (9) is fixedly connected to the top plate of the rotating rod (10), the bottom of the rotating rod (10) is connected to the top of the rotating disk (15) via bolts, the frame (11) is connected to the inner wall of the filter barrel (1) via bolts, a slide groove (14) is provided on one side of the frame (11), the slide groove (14) is slidably connected to the rotating disk (15), a plurality of through openings (16) are provided through the top of the rotating disk (15), and the inner wall of the through opening (16) is welded to the filter plate (17).

3. A feeding filter device for a plastic film blowing machine according to claim 2, characterized in that: The top of the frame (11) is connected to a scraper (12) via bolts, and a plurality of scraper rods (13) are arranged at the bottom of the scraper (12). The bottom of the scraper rods (13) is in contact with the filter plate (17), and the cross section of the scraper rods (13) is rhombus-shaped.

4. A feeding filter device for a plastic film blowing machine according to claim 1, characterized in that: A cleaning mechanism (7) is provided inside the filter barrel (1), and the cleaning mechanism (7) is located below the filtering mechanism (6), so that the cleaning mechanism (7) and the filtering mechanism (6) are matched with each other.

5. A feeding filter device for a plastic film blowing machine according to claim 4, characterized in that: The cleaning mechanism (7) is composed of a transmission assembly (18) and a cleaning assembly, and the filtering mechanism (6) and the cleaning assembly are connected via the transmission assembly (18).

6. A feeding filter device for a plastic film blowing machine according to claim 5, characterized in that: The cleaning assembly is composed of a plurality of cleaning plates (19) and a plurality of brush wires (20), wherein the top of the cleaning plate (19) is welded to the brush wires (20), the top of the brush wires (20) is in contact with the bottom of the filter plate (17), and a telescopic rod is connected between one side of the cleaning plate (19) and the inner wall of the filter barrel (1) via bolts.

7. A feeding filter device for a plastic film blowing machine according to claim 6, characterized in that: The transmission assembly (18) comprises a first top block (30), a second top block (32), a support (22), a connecting frame (27), a gear (21), a first rack (29) and a second rack (31); one side of the connecting frame (27) is connected to the inner wall of the filter barrel (1) by bolts; a rotating shaft (28) is rotatably connected between two opposite sides of the connecting frame (27) by bearings; the gear (21) is fixedly sleeved on the outer wall of the rotating shaft (28); the top of the gear (21) is meshed with the first rack (29); the first rack (29) The top of the first top block (30) is connected to the bottom of the cleaning plate (19) by bolts, one side of the gear (21) is meshed with the second rack (31), one side of the second rack (31) is connected to the support (22) by bolts, the bottom of the first top block (30) is welded to the top of the support (22), the top of the second top block (32) is connected to the bottom of the turntable (15) by bolts, and a plurality of jacking ends are provided on opposite sides of the first top block (30) and the second top block (32), and the first top block (30) and the second top block (32) are matched with each other.

8. A feeding filter device for a plastic film blowing machine according to claim 7, characterized in that: The inner circumferential wall of the filter barrel (1) is connected to a plurality of support rods (24) by bolts, and a connecting seat (23) is connected between the plurality of support rods (24) by bolts, and a limiting rod (25) is connected between the connecting seat (23) and the support seat (22) by bolts, the limiting rod (25) is made of a telescopic material, and a spring (26) is sleeved on the outer wall of the limiting rod (25).

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