Screening device for plastic additive particles

Abstract

The utility model provides a screening device for plastic additive particles, which relates to the technical field of screening, and comprises a first barrel, a second barrel, a plurality of first screening holes, a plurality of second screening holes and a plurality of second screening holes, a plurality of second screening holes are distributed in the side wall of the second barrel, the inner side of the second barrel is connected to the outer side of the first barrel in a sleeving and rotating mode, and each first screening hole and one second screening hole are communicated in an overlapped mode to form a screening hole; the rotation driving mechanism is arranged at one end of the first barrel, the driving end of the rotation driving mechanism is connected with the second barrel, and the rotation driving mechanism can drive the second barrel to rotate relative to the first barrel so as to adjust the sizes of the screening holes; according to the plastic additive particle screening device, plastic additive particles with different particle sizes can be screened in one screening device, and meanwhile, screen drums with different specifications do not need to be replaced, so that the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening, and more specifically relates to a screening device for plastic additive particles. Background Art

[0002] Plastic additives, also known as plastic additives, are compounds that must be added to polymers (synthetic resins) during the molding process to improve their processing properties or compensate for the inherent performance deficiencies of the resin. These additives play a vital role in plastic processing, including but not limited to plasticizers, heat stabilizers, antioxidants, light stabilizers, flame retardants, foaming agents, antistatic agents, mildew inhibitors, colorants and whitening agents (pigments), fillers, coupling agents, lubricants and release agents.

[0003] At present, in the process of producing plastic additives, it is necessary to control and screen the diameter of the particles of the plastic additives. Since the size of the screening holes of the existing screen drum device cannot be changed, it can only screen plastic additives of one particle size. If you want to screen plastic additives of other particle sizes, you need to replace the screen drum or use a screen drum device of different specifications, which reduces production efficiency and increases production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for plastic additive particles in response to the shortcomings of the existing technology, so as to solve the problem that the existing screen drum device proposed in the above background technology can only screen plastic additives of one particle size. If you want to screen plastic additives of other particle sizes, you need to replace the screen drum or use a screen drum device of different specifications, which reduces production efficiency and increases production costs.

[0005] In order to achieve the above-mentioned object, the present invention provides a screening device for plastic additive particles, the screening device comprising:

[0006] a first cylinder, wherein a plurality of first sieve holes are distributed on a side wall of the first cylinder;

[0007] a second cylinder, wherein a plurality of second sieve holes are distributed on the sidewall of the second cylinder, the inner side of the second cylinder is sleeved and rotatably connected to the outer side of the first cylinder, and each of the first sieve holes is overlapped and connected with one of the second sieve holes to form a sieve hole;

[0008] A rotary drive mechanism is provided at one end of the first cylinder, the driving end of the rotary drive mechanism is connected to the second cylinder, and the rotary drive mechanism can drive the second cylinder to rotate relative to the first cylinder to adjust the size of the sieve hole.

[0009] Preferably, the first cylinder comprises:

[0010] An inner cylinder, wherein a plurality of prisms are distributed circumferentially on the inner side of the inner cylinder;

[0011] Two baffles are respectively connected to the two ends of the inner cylinder.

[0012] Preferably, the second cylinder comprises:

[0013] outer cylinder;

[0014] Two ring plates are respectively connected to the two ends of the outer cylinder.

[0015] Preferably, the screening device for plastic additive particles further comprises a plurality of limiting mechanisms, and at least two limiting mechanisms are provided between the ring plate and the baffle on the same end side, and the limiting mechanisms are used to limit the movement of the outer cylinder along the axial direction of the inner cylinder.

[0016] Preferably, the rotation drive mechanism comprises:

[0017] a first drive motor connected to one of the baffles;

[0018] a first shaft, one end of the first shaft being connected to the output end of the first drive motor, and the other end of the first shaft being rotatably connected to the other baffle;

[0019] Two gear columns are connected to the first shaft, and meshing teeth are provided on the outer sides of the two ring plates. The two gear columns are respectively meshed with the two meshing teeth.

[0020] Preferably, the limiting mechanism includes:

[0021] A rod body, one end of the rod body is connected to a surface of the baffle close to the ring plate, and the other end of the rod body is provided with a universal groove;

[0022] A universal ball is connected in a rolling manner in the universal groove, and the universal ball is attached to a surface of the ring plate close to the baffle.

[0023] Preferably, a feed hole is provided on one of the baffles, and the screening device for plastic additive particles further comprises a feed pipe, one end of which is connected to the feed hole.

[0024] Preferably, the first sieve hole and the second sieve hole are both in the shape of long strips, and the first sieve hole and the second sieve hole are both arranged along the axial direction of the first cylinder.

[0025] Preferably, the screening device for the plastic additive particles further comprises:

[0026] Two base bodies, the two base bodies are spaced apart;

[0027] a second drive motor, the second drive motor being connected to one of the base bodies, and an output end of the second drive motor being connected to one end of the first cylinder;

[0028] A second shaft body, one end of the second shaft body is connected to the other seat body, and the other end of the second shaft body is rotatably connected to the other end of the first cylinder body.

[0029] Preferably, the screening device for plastic additive particles also includes two supporting cylinders, which are respectively sleeved on the second drive motor and the second shaft, one end of the two supporting cylinders is respectively connected to the two base bodies, and the other end of the two supporting cylinders is respectively rotatably connected to the two ends of the first cylinder.

[0030] The utility model provides a screening device for plastic additive particles, which has the following beneficial effects: each first sieve hole of the screening device is connected to a second sieve hole and forms a screening hole; when the rotary drive mechanism drives the second cylinder to rotate relative to the first cylinder, the size of the overlapping area between the first sieve hole and the second sieve hole can be adjusted to adjust the size of the screening hole; therefore, plastic additive particles of different particle sizes can be screened by changing the size of the screening hole of the screening device; since the present application can complete the screening of plastic additive particles of different particle sizes in one screening device, there is no need to replace sieve cylinders of different specifications, thereby reducing production costs and improving production efficiency.

[0031] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0033] Figure 1 A schematic structural diagram of a device for screening plastic additive particles according to an embodiment of the present utility model is shown;

[0034] Figure 2 A schematic structural diagram of a first cylinder of a device for screening plastic additive particles according to an embodiment of the present utility model is shown;

[0035] Figure 3 A schematic structural diagram of a second cylinder of a device for screening plastic additive particles according to an embodiment of the present utility model is shown;

[0036] Figure 4A schematic cross-sectional structure diagram of a first cylinder and a second cylinder of a device for screening plastic additive particles according to an embodiment of the present utility model is shown.

[0037] Description of reference numerals:

[0038] 1. First cylinder; 2. First sieve hole; 3. Second cylinder; 4. Second sieve hole; 5. Screening hole; 6. Inner cylinder; 7. Baffle; 8. Outer cylinder; 9. Ring plate; 10. First drive motor; 11. First shaft; 12. Gear column; 13. Meshing teeth; 14. Rod; 15. Universal ball; 16. Feed pipe; 17. Base; 18. Second drive motor; 19. Second shaft; 20. Support cylinder; 21. Prism; DETAILED DESCRIPTION

[0039] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0040] like Figure 1-Figure 4 As shown, the utility model provides a screening device for plastic additive particles, the screening device comprising:

[0041] A first cylinder 1, wherein a plurality of first sieve holes 2 are distributed on the side wall of the first cylinder 1;

[0042] A second cylinder 3, with a plurality of second sieve holes 4 distributed on the side wall of the second cylinder 3. The inner side of the second cylinder 3 is sleeved and rotatably connected to the outer side of the first cylinder 1. Each first sieve hole 2 is overlapped and connected with a second sieve hole 4 to form a sieve hole 5;

[0043] The rotary drive mechanism is arranged at one end of the first cylinder 1 , and the driving end of the rotary drive mechanism is connected to the second cylinder 3 . The rotary drive mechanism can drive the second cylinder 3 to rotate relative to the first cylinder 1 to adjust the size of the sieve hole 5 .

[0044] Specifically, in order to solve the problem that the existing sieve drum device can only screen plastic additives of one particle size, if you want to screen plastic additives of other particle sizes, you need to replace the sieve drum or use a sieve drum device of different specifications, which reduces production efficiency and increases production costs. The utility model provides a screening device for plastic additive particles, each first sieve hole 2 of the screening device is connected to a second sieve hole 4 and forms a screening hole 5. When the rotary drive mechanism drives the second cylinder 1 to rotate relative to the first cylinder 1, the size of the overlapping area between the first sieve hole 2 and the second sieve hole 4 can be adjusted to adjust the size of the screening hole 5. Therefore, plastic additive particles of different particle sizes can be screened by changing the size of the screening hole 5 of the screening device. Since the present application can complete the screening of plastic additive particles of different particle sizes in one screening device, and there is no need to replace sieve drums of different specifications, thereby reducing production costs and improving production efficiency.

[0045] Preferably, the first cylinder 1 comprises:

[0046] The inner cylinder 6 has a plurality of prisms 21 distributed circumferentially on the inner side of the inner cylinder 6;

[0047] Two baffles 7 are respectively connected to the two ends of the inner cylinder 6.

[0048] Specifically, the two baffles 7 are used to block the two ends of the inner cylinder 6 respectively, and the prism 21 is used to turn over the plastic additive particles.

[0049] Preferably, the second cylinder 3 comprises:

[0050] outer cylinder 8;

[0051] Two ring plates 9 are respectively connected to both ends of the outer cylinder 8 .

[0052] Specifically, the two ring plates 9 are used to connect with the rotary drive mechanism.

[0053] Preferably, the screening device for plastic additive particles further includes a plurality of limiting mechanisms, with at least two limiting mechanisms provided between the ring plate 9 and the baffle 7 on the same end side, and the limiting mechanisms are used to limit the movement of the outer cylinder 8 along the axial direction of the inner cylinder 6 .

[0054] Specifically, the limiting mechanism is used to prevent the outer cylinder 8 from moving along the axial direction of the inner cylinder 6 .

[0055] Preferably, the rotation drive mechanism comprises:

[0056] A first drive motor 10, the first drive motor 10 is connected to one of the baffles 7;

[0057] A first shaft 11, one end of the first shaft 11 is connected to the output end of the first drive motor 10, and the other end of the first shaft 11 is rotatably connected to another baffle 7;

[0058] Two gear columns 12 are connected to the first shaft 11 . Meshing teeth 13 are provided on the outer sides of the two ring plates 9 . The two gear columns 12 are respectively meshed with the two meshing teeth 13 .

[0059] Specifically, when screening plastic additive particles of different particle sizes, the first drive motor 10 is controlled to drive the first shaft 11 to rotate. Since the two gear columns 12 on the first shaft 11 are respectively engaged with the two meshing teeth 13, the first shaft 11 will drive the second cylinder 3 to rotate relative to the first cylinder 1, thereby adjusting the size of the overlapping area between the first sieve hole 2 and the second sieve hole 4 to adjust the size of the screening hole 5, thereby achieving the screening of plastic additive particles of different particle sizes.

[0060] Preferably, the limiting mechanism includes:

[0061] Rod body 14, one end of the rod body 1 is connected to the side of the baffle 7 close to the ring plate 8, and the other end of the rod body 14 is provided with a universal groove;

[0062] The universal ball 15 is connected in a rolling manner in the universal groove, and the universal ball 15 is attached to a surface of the ring plate 8 close to the baffle 7 .

[0063] Specifically, the abutment of the universal ball 15 is used to prevent the outer cylinder 8 from moving along the axial direction of the inner cylinder 6 , while preventing and restricting the second cylinder 3 from rotating relative to the first cylinder 1 .

[0064] Preferably, a feed hole is provided on one of the baffles 7 , and the screening device for the plastic additive particles further comprises a feed pipe 16 , one end of which is connected to the feed hole.

[0065] Specifically, the feed pipe 16 is used to transport plastic additive particles into the first cylinder 1 .

[0066] Preferably, the first sieve hole 2 and the second sieve hole 4 are both in the shape of long strips, and the first sieve hole 2 and the second sieve hole 4 are both arranged along the axial direction of the first cylinder 1 .

[0067] Specifically, the long strip-shaped first sieve holes 2 and the long strip-shaped second sieve holes 4 form a long strip-shaped screening hole 5 .

[0068] Preferably, the screening device for plastic additive particles further comprises:

[0069] Two base bodies 17, the two base bodies 17 are spaced apart;

[0070] A second drive motor 18, the second drive motor 18 is connected to one of the base bodies 17, and an output end of the second drive motor 18 is connected to one end of the first cylinder 1;

[0071] The second shaft body 19 has one end connected to the other seat body 17 , and the other end of the second shaft body 19 is rotatably connected to the other end of the first cylinder body 1 .

[0072] Specifically, when the size of the screening hole 5 is adjusted and the plastic additive particles are transported into the first cylinder 1, the second drive motor 18 can be started. Under the support of the two base bodies 17, the first cylinder 1 and the second cylinder 3 can be driven to rotate. At this time, the screening hole 5 can evenly screen the plastic additive particles.

[0073] Preferably, the screening device for plastic additive particles also includes two support cylinders 20, which are respectively sleeved on the second drive motor 18 and the second shaft 19, one end of the two support cylinders 20 is respectively connected to the two base bodies 17, and the other ends of the two support cylinders 20 are respectively rotatably connected to the two ends of the first cylinder 1.

[0074] Specifically, the two support cylinders 20 are used to support the first cylinder 1 and the second cylinder 3 .

[0075] In summary, when the screening device for plastic additive particles of the utility model is implemented, when it is necessary to screen plastic additive particles of different particle sizes, the first drive motor 10 is controlled to drive the first shaft 11 to rotate. Since the two gear columns 12 on the first shaft 11 are respectively engaged with the two meshing teeth 13, the first shaft 11 will drive the second cylinder 3 to rotate relative to the first cylinder 1, and then the size of the overlapping area between the first sieve hole 2 and the second sieve hole 4 can be adjusted to adjust the size of the screening hole 5, so as to screen plastic additive particles of different particle sizes. Since the present application can complete the screening of plastic additive particles of different particle sizes in one screening device, and there is no need to replace sieve cylinders of different specifications, thereby reducing production costs and improving production efficiency.

[0076] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A screening device for plastic additive particles, characterized in that: The screening device comprises: a first cylinder, wherein a plurality of first sieve holes are distributed on a side wall of the first cylinder; a second cylinder, wherein a plurality of second sieve holes are distributed on the sidewall of the second cylinder, the inner side of the second cylinder is sleeved and rotatably connected to the outer side of the first cylinder, and each of the first sieve holes is overlapped and connected with one of the second sieve holes to form a sieve hole; A rotary drive mechanism is provided at one end of the first cylinder, the driving end of the rotary drive mechanism is connected to the second cylinder, and the rotary drive mechanism can drive the second cylinder to rotate relative to the first cylinder to adjust the size of the sieve hole.

2. A screening device for plastic additive particles according to claim 1, characterized in that: The first cylinder comprises: An inner cylinder, wherein a plurality of prisms are distributed circumferentially on the inner side of the inner cylinder; Two baffles are respectively connected to the two ends of the inner cylinder.

3. A screening device for plastic additive particles according to claim 2, characterized in that: The second cylinder comprises: outer cylinder; Two ring plates are respectively connected to the two ends of the outer cylinder.

4. A screening device for plastic additive particles according to claim 3, characterized in that: The screening device for plastic additive particles further comprises a plurality of limiting mechanisms, wherein at least two limiting mechanisms are provided between the ring plate and the baffle on the same end side, and the limiting mechanisms are used to limit the movement of the outer cylinder along the axial direction of the inner cylinder.

5. The device for screening plastic additive particles according to claim 3, characterized in that: The rotary drive mechanism comprises: a first drive motor connected to one of the baffles; a first shaft, one end of the first shaft being connected to the output end of the first drive motor, and the other end of the first shaft being rotatably connected to the other baffle; Two gear columns are connected to the first shaft, and meshing teeth are provided on the outer sides of the two ring plates. The two gear columns are respectively meshed with the two meshing teeth.

6. The device for screening plastic additive particles according to claim 4, characterized in that: The limiting mechanism includes: A rod body, one end of the rod body is connected to a surface of the baffle close to the ring plate, and the other end of the rod body is provided with a universal groove; A universal ball is connected in a rolling manner in the universal groove, and the universal ball is attached to a surface of the ring plate close to the baffle.

7. The device for screening plastic additive particles according to claim 2, characterized in that: A feed hole is provided on one of the baffles, and the screening device for plastic additive particles further comprises a feed pipe, one end of which is connected to the feed hole.

8. The device for screening plastic additive particles according to claim 1, characterized in that: The first sieve hole and the second sieve hole are both in the shape of long strips, and are both arranged along the axis direction of the first cylinder.

9. The device for screening plastic additive particles according to claim 1, characterized in that: The screening device for the plastic additive particles further comprises: Two base bodies, the two base bodies are spaced apart; a second drive motor, the second drive motor being connected to one of the base bodies, and an output end of the second drive motor being connected to one end of the first cylinder; A second shaft body, one end of the second shaft body is connected to the other seat body, and the other end of the second shaft body is rotatably connected to the other end of the first cylinder body.

10. The device for screening plastic additive particles according to claim 9, characterized in that: The screening device for plastic additive particles also includes two supporting cylinders, which are respectively sleeved on the second drive motor and the second shaft, one end of the two supporting cylinders is respectively connected to the two base bodies, and the other end of the two supporting cylinders is respectively rotatably connected to the two ends of the first cylinder.

Images