Plastic particle screening device for plastic film production

Abstract

The utility model provides a plastic particle screening device for plastic film production, belongs to the technical field of screening devices, and solves the technical problem that the screening effect is affected due to the adhesion condition of existing plastic particles in the screening process. The top of the rack is obliquely arranged, the top of the rack is slidably connected with a screening device, the screening device comprises a screening shell, a power device is arranged on one side of the screening shell, a filter plate is connected into the screening shell, a first cavity and a second cavity are formed in the screening shell, a cleaning device is arranged in the first cavity and comprises a hollow rotating shaft, and a through hole is formed in the rotating shaft; the side wall of the screening shell is provided with a rack and a first guide groove, the rotating shaft is matched with the first guide groove, the gear is matched with the rack, one end of the rotating shaft is connected with a first motor, and the other end of the rotating shaft is connected with a cooling device and a cleaning device. A feeding assembly is further arranged in the feeding bin.

Description

Technical Field

[0001] The present application belongs to the technical field of screening devices, and more specifically, relates to a plastic particle screening device for plastic film production. Background Art

[0002] Plastics are polymer compounds made from monomers through polyaddition or condensation reactions. Plastics have high properties such as strength, modulus, and toughness, and can be used at high temperatures and have a long service life, resulting in a wide range of applications.

[0003] When manufacturing plastic particles, the raw materials need to be stirred and mixed, and then cut into small particles by a cutting machine. If these small plastic particles are not sufficiently cooled, some of them will stick together, affecting the screening work. In addition, if the temperature rises during the screening process, the plastic particles may also stick together. Utility Model Content

[0004] In order to solve the technical problem that existing plastic particles may stick together during the screening process and affect the screening effect, a plastic particle screening device for plastic film production is provided, which can separate the sticking plastic particles.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: a plastic particle screening device for plastic film production, which is provided with a frame, the top of the frame is inclined, and the screening device is slidably connected to the top of the frame, the screening device includes a screening shell, one side of the screening shell is provided with a power device, the screening shell is connected with a filter plate, the screening shell is divided into a first cavity and a second cavity by the filter plate, and a cleaning device is provided in the first cavity. The cleaning device includes a rotating shaft, the rotating shaft is hollow, and a plurality of through holes are provided on the outer periphery of the rotating shaft. A cleaning block is sleeved on the rotating shaft, and the cleaning block rotates with the rotating shaft, and a plurality of connecting holes are provided on the cleaning block. Both ends of the rotating shaft are connected to a gear, and two outer walls of the screening shell are provided with a rack and a first guide groove, and the two ends of the rotating shaft are slidably matched with the first guide groove, and the two gears cooperate with the two racks. One end of the rotating shaft is connected to the first motor, and the other end of the rotating shaft is connected to the cooling device and the cleaning device through the main pipeline. The top of the screening shell is also connected to the feed bin, and a feed assembly is also provided in the feed bin.

[0006] Preferably, the cooling device includes a cooling fan, which is connected to the main pipeline through a first connecting pipe, and a first electrically controlled valve is provided on the first connecting pipe.

[0007] Preferably, the cleaning device includes a water tank, a pump body is provided in the water tank, the water tank is connected to the main pipeline through a second connecting pipe, and a second electrically controlled valve is provided on the second connecting pipe.

[0008] Preferably, the feeding assembly includes a second motor connected to the top of the feeding bin. The output end of the second motor is connected to a stirring shaft, and a number of stirring blocks are connected to the stirring shaft.

[0009] Preferably, a guiding shaft is further connected to the cleaning block. Second guiding grooves are also provided on two side walls of the screening housing. Both ends of the guiding shaft are slidably engaged with the two second guiding grooves, and a cleaning brush is provided at the bottom of the cleaning block.

[0010] Preferably, a first collection box is connected to the position corresponding to the first cavity of the screening housing, and a second collection box is connected to the position corresponding to the second cavity of the screening housing.

[0011] Preferably, the power device includes a third motor. One end of a power shaft is connected to the output end of the third motor through a belt. One end of a connecting shaft is eccentrically connected to the other end of the power shaft through a turntable, and the other end of the connecting shaft is connected to the screening housing.

[0012] Preferably, it is further provided with a controller. A temperature sensor is connected inside the screening housing. The controller is electrically connected to the first motor, the second motor, the third motor, the pump body, and the cooling fan.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing the feeding assembly, the present utility model can separate the adhered plastic particles, thereby ensuring the screening quality of the plastic particles; by providing the cleaning device, after the screening work is completed, the inside of the screening housing can be cleaned to ensure the quality of the next screening work; by providing the cleaning device, it is convenient to clean the filter plate to prevent the plastic particles from blocking the filter mesh and affecting the filtering effect; it avoids the mutual adhesion of plastic particles from affecting the screening work and ensures the screening effect of the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic side view structure diagram of the present utility model;

[0017] Figure 2 It is a schematic overall structure diagram of the present utility model;

[0018] Figure 3 It is a schematic structure diagram of the feeding assembly of the present utility model;

[0019] Figure 4This is a schematic diagram of the connection structure between the rotating shaft and the gear of the utility model.

[0020] Explanation of symbols in the figure:

[0021] 1. Frame; 2. Screening housing; 3. Filter plate; 4. Rotating shaft; 5. Through hole; 6. Cleaning block; 7. Connecting hole; 8. Gear; 9. Rack; 10. First guiding groove; 11. Main pipeline; 12. Feed bin; 13. Cooling fan; 14. First connecting pipe; 15. First electric control valve; 16. Water tank; 17. Second connecting pipe; 18. Second electric control valve; 19. Second motor; 20. Stirring shaft; 21. Stirring block; 22. Guide shaft; 23. Second guiding groove; 24. First collection box; 25. Second collection box; 26. Third motor; 27. Belt; 28. Power shaft; 29. Connecting shaft; 30. Temperature sensor. Detailed implementation manners

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0023] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0024] As Figures 1-4 shown, this application provides a plastic particle screening device for plastic film production, which is provided with a frame 1. The top of the frame 1 is inclined. A screening device is slidably connected to the top of the frame 1. The screening device includes a screening housing 2. A power device is provided on one side of the screening housing 2. A filter plate 3 is connected inside the screening housing 2. The screening housing 2 is separated by the filter plate 3 to form a first cavity and a second cavity. A cleaning device is provided in the first cavity. The cleaning device includes a rotating shaft 4. The rotating shaft 4 is hollow. A plurality of through holes 5 are provided on the outer periphery of the rotating shaft 4. A cleaning block 6 is sleeved on the rotating shaft 4. The cleaning block 6 is rotationally matched with the rotating shaft 4. A plurality of connecting holes 7 are provided on the cleaning block 6. Both ends of the rotating shaft 4 are connected with gears 8. Rack 9 and first guiding groove 10 are provided on both outer side walls of the screening housing 2. Both ends of the rotating shaft 4 are slidably matched with the first guiding groove 10. The two gears 8 are matched with the two racks 9. One end of the rotating shaft 4 is connected with a first motor. The other end of the rotating shaft 4 is connected with a cooling device and a cleaning device through a main pipeline 11. A feed bin 12 is further connected to the top of the screening housing 2. A feeding assembly is further provided in the feed bin 12.

[0025] In the technical solution adopted in this embodiment, the screening function of plastic particles is realized by setting up a screening device. Specifically, a filter plate 3 is arranged in the screening housing 2 to screen plastic particles of different sizes. A cleaning device is set up to facilitate the cleaning of the filter plate 3 to prevent plastic particles from blocking the filter net and affecting the filtering effect. Specifically, the first motor drives the rotation of the rotating shaft 4, and the rotating rotating shaft 4 drives the rotation of the gears 8 at both ends. The cleaning block 6 is moved through the cooperation of the gear 8 and the rack 9. The cleaning block 6 moves above the filter plate 3 to clean the filter plate 3. The temperature inside the screening housing 2 is lowered by setting up a temperature reduction device to prevent the plastic particles in the screening housing 2 from having too high a temperature and excessive viscosity, which affects the screening work. After the screening work is completed, the inside of the screening housing 2 is cleaned by setting up a cleaning device to ensure the quality of the next screening work. The feed bin 12 is set up to facilitate the feeding of plastic particles into the screening housing 2, and a feeding assembly is set up to separate the adhered plastic particles, thereby ensuring the screening quality of the plastic particles.

[0026] Furthermore, in this embodiment, the temperature reduction device includes a temperature reduction fan 13. The temperature reduction fan 13 is connected to the main pipeline 11 through a first connecting pipe 14, and a first electric control valve 15 is arranged on the first connecting pipe 14.

[0027] In the technical solution adopted in this embodiment, the temperature inside the screening housing 2 is lowered by setting up a temperature reduction device to prevent the plastic particles in the screening housing 2 from having too high a temperature and excessive viscosity, which affects the screening work. Specifically, the fan can blow out air, and the air blown out by the fan enters the rotating shaft 4 through the first connecting pipe 14 and the main pipeline 11. Since through holes 5 are arranged on the rotating shaft 4 and connecting holes 7 are arranged on the cleaning block 6, the air in the rotating shaft 4 enters the screening housing 2 through the through holes 5 and the connecting holes 7, driving out the hot air in the screening housing 2, thereby reducing the temperature inside the screening housing 2. The first electric control valve 15 can control whether the air blown out by the temperature reduction fan 13 enters the screening housing 2.

[0028] Furthermore, in this embodiment, the cleaning device includes a water tank 16. A pump body is arranged in the water tank 16. The water tank 16 is connected to the main pipeline 11 through a second connecting pipe 17, and a second electric control valve 18 is arranged on the second connecting pipe 17.

[0029] In the technical solution adopted in this embodiment, after the screening work is completed, the inside of the screening housing 2 is cleaned by setting up a cleaning device to ensure the quality of the next screening work. Specifically, the water in the water tank 16, under the action of the water pump, enters the rotating shaft 4 along the second connecting pipe 17 and the main pipeline 11, and is sprayed into the screening housing 2 through the through holes 5 and the connecting holes 7 to clean the inside of the screening housing 2.

[0030] Furthermore, in this embodiment, the feeding assembly includes a second motor 19 connected to the top of the feeding bin 12. The output end of the second motor 19 is connected to a stirring shaft 20, and a plurality of stirring blocks 21 are connected to the stirring shaft 20.

[0031] In the technical solution adopted in this embodiment, the feeding assembly is provided to separate the adhered plastic particles, thereby ensuring the subsequent screening quality of the plastic particles. Specifically, the second motor 19 drives the stirring shaft 20 to rotate, thereby driving the stirring blocks 21 to rotate. The stirring blocks 21 can disperse the adhered plastic particles. It should be noted that in this embodiment, the second motor 19 selected is a motor that can drive the stirring shaft 20 to move up and down and can drive the stirring shaft 20 to rotate. This technology is an existing technology and will not be elaborated here.

[0032] Furthermore, in this embodiment, a guiding shaft 22 is further connected to the cleaning block 6. Second guiding grooves 23 are provided on the two side walls of the screening housing 2. The two ends of the guiding shaft 22 are slidably engaged with the two second guiding grooves 23, and a cleaning brush is provided at the bottom of the cleaning block 6.

[0033] In the technical solution adopted in this embodiment, the cooperation of the guiding shaft 22 and the guiding groove is provided to enable the cleaning block 6 to move stably along the direction of the guiding groove, thereby ensuring the cleaning effect of the cleaning block 6. The cleaning brush is provided in contact with the filter plate 3 to play a cleaning role on the filter plate 3.

[0034] Furthermore, in this embodiment, a first collection box 24 is connected to the position of the screening housing 2 corresponding to the first cavity, and a second collection box 25 is connected to the position of the screening housing 2 corresponding to the second cavity.

[0035] In the technical solution adopted in this embodiment, the first collection box 24 is provided to facilitate the collection of the plastic particles filtered out by the first cavity, and the second collection box 25 is provided to facilitate the collection of the plastic particles filtered out by the second cavity, thereby facilitating the subsequent processing of plastic particles of different sizes.

[0036] Furthermore, in this embodiment, the power device includes a third motor 26. The output end of the third motor 26 is connected to one end of a power shaft 28 through a belt 27. The other end of the power shaft 28 is eccentrically connected to one end of a connecting shaft 29 through a turntable, and the other end of the connecting shaft 29 is connected to the screening housing 2.

[0037] In the technical solution adopted in this embodiment, the third motor 26 drives the power shaft 28 to rotate through the belt 27. The power shaft 28 drives the turntable to rotate. Since the turntable and the connecting shaft 29 are eccentrically connected, the rotating turntable can drive the connecting shaft 29 to move back and forth, thereby pushing the screening housing 2 to move back and forth, shaking the plastic particles in the screening housing 2, and realizing better screening of the plastic particles.

[0038] Further, in this embodiment, it is also provided with a controller. A temperature sensor 30 is connected inside the screening housing 2, and the controller is electrically connected to the first motor, the second motor 19, the third motor 26, the pump body, and the cooling fan 13.

[0039] In the technical solution adopted in this embodiment, the temperature sensor 30 can detect the temperature inside the screening housing 2 in real time, and send a signal to the controller when the temperature is too high. The controller can control the opening and closing of the first motor, the second motor 19, the third motor 26, the pump body, the cooling fan 13, the first electric control valve 15, and the second electric control valve 18, so as to control the screening work, the cooling work, the cleaning work, and the feeding work.

[0040] The working principle of the present utility model is as follows: Plastic particles are put into the feeding bin 12. During the feeding process, the second motor 19 is started to drive the stirring block 21 to rotate, so as to disperse the adhered plastic particles. Subsequently, the plastic particles enter the screening housing 2. During the screening process, the third motor 26 drives the screening housing 2 to move back and forth through the connecting shaft 29. The plastic particles inside the screening housing 2 are screened under the action of the filter plate 3. When the temperature sensor 30 detects that the temperature inside the screening housing 2 is higher than the set value, it sends a signal to the controller. The controller starts the cooling fan 13 and opens the first electric control valve 15 to blow air into the screening housing 2. During the screening process, the first motor rotates forward and backward to drive the cleaning block 6 to move back and forth, and the filter plate 3 is cleaned by the cleaning brush. Plastic particles of different sizes screened by the filter plate 3 enter the first collection box 24 and the second collection box 25 along the inclined screening housing 2 respectively. After the screening is completed, the pump body is started by the controller and the second valve is opened to make the cleaning water enter the screening housing 2 to clean the inside of the screening housing 2. During the cleaning process, the first motor can rotate to drive the cleaning block 6 to move back and forth to ensure the cleaning quality of the inside of the screening housing 2.

[0041] The present utility model can separate the adhered plastic particles by setting the feeding assembly, thereby ensuring the screening quality of the plastic particles; setting the cleaning device to clean the inside of the screening housing 2 after the screening work is completed to ensure the quality of the next screening work; setting the cleaning device to facilitate the cleaning of the filter plate 3 to prevent plastic particles from blocking the filter net and affecting the filtering effect; avoiding the mutual adhesion of plastic particles and affecting the screening work, and ensuring the screening effect of the plastic particles.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A plastic particle screening device for plastic film production, which is provided with a frame, and is characterized in that, The top of the frame is inclined, and a screening device is slidably connected to the top of the frame. The screening device includes a screening housing. A power device is provided on one side of the screening housing. A filter plate is connected inside the screening housing. The screening housing is separated by the filter plate to form a first cavity and a second cavity. A cleaning device is provided in the first cavity. The cleaning device includes a rotating shaft which is hollow inside. A number of through holes are provided on the outer periphery of the rotating shaft. A cleaning block is sleeved on the rotating shaft. The cleaning block is rotationally matched with the rotating shaft. A number of connecting holes are provided on the cleaning block. Gears are connected to both ends of the rotating shaft. Rack bars and first guide grooves are provided on the two outer side walls of the screening housing. Both ends of the rotating shaft are slidably matched with the first guide grooves. The two gears are matched with the two rack bars. One end of the rotating shaft is connected to a first motor. The other end of the rotating shaft is connected to a cooling device and a cleaning device through a main pipeline. A feed bin is also connected to the top of the screening housing. A feeding assembly is further provided in the feed bin.

2. The plastic particle screening device for plastic film production according to claim 1, characterized in that, The cooling device includes a cooling fan which is connected to the main pipeline through a first connecting pipe. A first electric control valve is provided on the first connecting pipe.

3. The plastic particle screening device for plastic film production according to claim 2, characterized in that, The cleaning device includes a water tank. A pump body is provided in the water tank. The water tank is connected to the main pipeline through a second connecting pipe. A second electric control valve is provided on the second connecting pipe.

4. The plastic particle screening device for plastic film production according to claim 3, wherein, The feeding assembly includes a second motor connected to the top of the feed bin. The output end of the second motor is connected to a stirring shaft. A number of stirring blocks are connected to the stirring shaft.

5. The plastic particle screening device for plastic film production according to claim 4, characterized in that, A guide shaft is further connected to the cleaning block. Second guide grooves are also provided on the two side walls of the screening housing. Both ends of the guide shaft are slidably matched with the two second guide grooves. A cleaning brush is provided at the bottom of the cleaning block.

6. The plastic particle screening device for plastic film production according to claim 1, characterized in that, A first collection box is connected to the position corresponding to the first cavity of the screening housing. A second collection box is connected to the position corresponding to the second cavity of the screening housing.

7. The plastic particle screening device for plastic film production according to claim 5, characterized in that, The power device includes a third motor. The output end of the third motor is connected to one end of a power shaft through a belt. The other end of the power shaft is eccentrically connected to one end of a connecting shaft through a turntable. The other end of the connecting shaft is connected to the screening housing.

8. The plastic particle screening device for plastic film production according to claim 7, characterized in that, It further includes a controller. A temperature sensor is connected inside the screening housing. The controller is electrically connected to the first motor, the second motor, the third motor, the pump body, and the cooling fan.

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