Screening device for plastic crushed materials
The design of the screening plate and receiving plate of the screening device solves the problems of poor melting effect and high energy consumption caused by uneven particle size after plastic crushing, realizes efficient screening and low-cost particle size screening, and reduces the frequency of use and energy consumption of the crusher.
Patent Information
- Application Number
- CN202422782156.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In the prior art, after plastic is crushed, particles of different particle sizes suffer from uneven melting effects during melt injection molding, resulting in high energy consumption, increased costs, and blade wear due to frequent use of the crusher.
A screening device including a screening disc and a receiving disc is designed. The first driving part drives the screening disc to swing for screening, and the second driving part drives the mounting plate to rotate to facilitate material discharge, thereby achieving fast and efficient particle size screening and reducing energy consumption and the frequency of crusher use.
It realizes efficient screening of small-size screening devices, reduces energy consumption and costs, ensures melting effect, and reduces wear and energy consumption of the crusher.
Smart Images
Figure CN223456293U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of screening devices of plastic pulverized material in the field of plastic product production and processing, in particular to a kind of screening devices of plastic pulverized material. BACKGROUND
[0002] When plastic product is produced, according to product difference, process difference, generally adopt injection molding or blow molding process, whether it is injection molding or blow molding process, raw material is plastic particle or plastic recycling material.And plastic product, there will be runner cannot be used as waste, or there are some unqualified products, which are also used as waste.In order to reduce waste, generally it is crushed and then recycled.When crushing, generally it is directly put into the crusher, crushed after the crusher, and then recycled.
[0003] When waste enters the crusher, it is directly and quickly passed through the crusher, and then put into the injection molding machine for re-melting injection molding.But, in actual crushing, due to the contact position and contact frequency of waste and crushing blade during crushing process, there will be some waste big and some waste small problem.When it is sent into the injection molding machine for re-melting, it is recycled material, which has been melted and injected for the first time and then melted and injected for the second time, and the melting effect is not good, the particle size is small, the melting effect is relatively good, and the particle size is large, the melting effect is not good, and the melting time needs to be extended.In this way, energy consumption is larger, and cost is higher.If it is completely sent into the crusher for secondary crushing, the energy consumption of the crusher is also large, and the use frequency of the crusher is too high, which also leads to easy wear of the blade of the crusher.Therefore, it can be considered to screen the crushed particles, and the large particle size particles are screened out, and then crushed again after a certain amount, which can reduce the crushing frequency of the crusher, save energy consumption, ensure the injection melting effect, and reduce the energy consumption of the injection molding machine.How to quickly screen particles above a certain particle size, and the size of screening mechanism is small and the cost is low, is the direction that the person skilled in the art needs to work hard. SUMMARY
[0004] The utility model aims at providing a kind of screening devices of plastic pulverized material, by using the structure, it can be with small size screening equipment quickly screening, space occupation is small, simultaneously, it can also guarantee screening efficiency and effect, and cost is also low.
[0005] The utility model provides a technical scheme that is adopted to reach the above-mentioned purpose, a kind of screening device of plastic pulverized material, including support and the screening part being set on support, the screening part includes mounting plate, the receiving tray and screening disc being installed on the mounting plate, the left side of the mounting plate is rotatably connected with the support, the bottom of the receiving tray is fixedly installed on the mounting plate, the diameter of the screening disc is less than the diameter of the receiving tray, the screening disc is set on the directly above of the receiving tray, the two sides of the screening disc are rotatably connected with the receiving tray through a vertical plate respectively.
[0006] First driving part and second driving part are also provided, the first driving part is configured to drive the screening disc to swing relative to the receiving tray, and the second driving part is configured to drive the mounting plate to rotate around the support.
[0007] In the above technical scheme, the two vertical plates are symmetrically arranged on the front side and the back side of the screening disc, the bottom of the vertical plate is rotatably connected with the inner wall of the receiving tray, and / or the top of the vertical plate is rotatably connected with the outer side wall of the screening disc.
[0008] When the vertical plate is perpendicular to the top surface of the mounting plate, the screening disc is coaxially arranged directly above the receiving tray.
[0009] In the above technical scheme, the top of the screening disc is provided with a screening chamber, and a plurality of screening holes are uniformly distributed on the bottom surface of the screening chamber and communicate with the bottom surface of the screening disc.
[0010] The top of the receiving tray is provided with a receiving chamber, and the screening disc is arranged directly above the receiving chamber.
[0011] In the above technical scheme, the left side surface of the screening disc is provided with an upper discharge port communicating with the screening chamber, the left side outer wall of the screening disc is provided with a first discharge pipe connected with the upper discharge port, and the first discharge pipe is provided with a first valve.
[0012] The left side surface of the receiving tray is provided with a lower discharge port communicating with the receiving chamber, the left side outer wall of the lower discharge port is provided with a second discharge pipe connected with the lower discharge port, and the second discharge pipe is provided with a second valve.
[0013] In the above technical scheme, the first driving part includes a first driving motor, a first driving disc and a first connecting rod, the first driving motor is longitudinally installed on the mounting plate on the right side of the receiving tray, the center of the first driving disc is connected with the output shaft of the first driving motor, the outer edge of the end surface of the first driving disc is further provided with a first connecting piece, the right side outer surface of the screening disc is provided with a second connecting piece, and the two ends of the first connecting rod are rotatably connected with the first connecting piece and the second connecting piece respectively.
[0014] The second driving part comprises a cylinder, the cylinder is arranged above the right of the mounting plate, the top of the cylinder is rotationally connected with the bracket above the right of the mounting plate, and the output shaft at the bottom of the cylinder is rotationally connected with the top right side of the mounting plate.
[0015] The bracket comprises a bottom plate and a vertical plate, two side plates are arranged on the top surface of the bottom plate, the two side plates are arranged close to the front side and the rear side of the bottom plate respectively, a connecting shaft is arranged on the front side and the rear side of the left end of the mounting plate respectively, and the two connecting shafts are rotationally connected with the two side plates respectively.
[0016] The vertical plate is arranged on the top surface of the bottom plate on the right side of the mounting plate, and the top of the cylinder is rotationally connected with the upper side of the vertical plate.
[0017] A supporting plate is further arranged on the left side of the vertical plate, and the supporting plate is arranged close to the bottom plate.
[0018] When the output shaft of the cylinder is in an extended state, the bottom surface of the right end of the mounting plate is arranged on the top surface of the supporting plate.
[0019] When the output shaft of the cylinder is in a retracted state, the mounting plate is driven to rotate around the side plate, and the right end of the mounting plate is arranged above the supporting plate.
[0020] Compared with the prior art, the utility model has the following advantages:
[0021] 1. The utility model discloses a screening disc and a material receiving disc, which are driven by the first driving part to swing above the material receiving disc, so that the swinging screening disc screens the material, and the small-particle material is screened and falls into the material receiving disc, thereby realizing rapid screening of the material. The second driving part can drive the screening part to rotate, thereby automatically feeding the material in the first material receiving disc and the second material receiving disc. The utility model has small size, small space occupation, simple structure and low cost.
[0022] 2. The utility model discloses a screening disc and a material receiving disc, which are driven by the first driving part to swing above the material receiving disc, so that the swinging screening disc screens the material, and the small-particle material is screened and falls into the material receiving disc, thereby realizing rapid screening of the material. The second driving part can drive the screening part to rotate, thereby automatically feeding the material in the first material receiving disc and the second material receiving disc. The utility model has small size, small space occupation, simple structure and low cost. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a structural schematic view of the utility model embodiment one.
[0024] Figure 2 It is a structural schematic view of another view of the utility model embodiment one.
[0025] Wherein: 1, support; 2, mounting plate; 3, receiving tray; 4, screening tray; 5, vertical plate; 6, first drive motor; 7, first drive plate; 8, first connecting rod; 9, first connecting piece; 10, second connecting piece; 11, screening chamber; 12, receiving chamber; 13, upper discharge port; 14, first discharge pipe; 15, first valve; 16, lower discharge port; 17, second discharge pipe; 18, second valve; 19, air cylinder; 20, bottom plate; 21, vertical plate; 22, side plate; 23, connecting shaft; 24, supporting plate. DETAILED DESCRIPTION
[0026] The utility model will be further described below in combination with the drawings and examples:
[0027] Example one: see Figure 1 、 2 The utility model discloses a plastic crushing material screening device, including support 1 and the screening part of setting up on support 1, the screening part includes mounting plate 2, installs the receiving tray 3 and screening tray 4 on mounting plate 2, the left side of mounting plate 2 is rotatably connected with support 1, the bottom of receiving tray 3 is fixedly installed on mounting plate 2, the diameter of screening tray 4 is less than the diameter of receiving tray 3, screening tray 4 is set in the just above receiving tray 3, and the both sides of screening tray 4 are rotatably connected with receiving tray 3 through a vertical plate 5 respectively.
[0028] Still be equipped with first drive part and second drive part, the first drive part is configured to drive the oscillation of screening tray 4 relative to receiving tray 4, and the second drive part is configured to drive mounting plate 2 to rotate around support 1.
[0029] In the actual use of the embodiment, the material after initial crushing is directly poured into the screening tray, then the first drive part drives the screening tray to oscillate, thereby screening the material, the material with small size falls into the receiving tray, and the material with large size still remains in the screening tray, then the second drive part drives the mounting plate to rotate, drives the screening part to rotate and incline, thereby conveniently and quickly taking out the material in the receiving tray and the screening tray, and realizes rapid screening. In this way, the size of the screening tray and the receiving tray can be set small, the size is small, the cost is low, and the space occupation is small. The size of the receiving tray is greater than that of the screening tray, so that when the material in the screening tray is screened and falls, the material can stably fall into the receiving tray and will not splash outside.
[0030] See Figure 1 、 2As shown, two said vertical plates 5 are symmetrically arranged on the front side and the rear side of the screening disc 4, the bottom of the vertical plate 5 is rotationally connected with the inner wall of the receiving disc 3, and / or the top of the vertical plate 5 is rotationally connected with the outer side wall of the screening disc 4. Among them, the vertical plate and the receiving disc can be fixedly connected, the screening disc and the vertical plate are rotationally connected; or the screening disc and the vertical plate are fixedly connected, the screening disc is rotationally connected through the vertical plate and the receiving disc; or the screening disc and the vertical plate are rotationally connected, and at the same time, the vertical plate is also rotationally connected with the receiving disc. The above three modes are all available.
[0031] When the vertical plate 5 is perpendicular to the top surface of the mounting plate 2, the screening disc 4 is coaxially arranged directly above the receiving disc 3.
[0032] The first driving part includes a first driving motor 6, a first driving disc 7 and a first connecting rod 8. The first driving motor 6 is longitudinally mounted on the mounting plate 2 on the right side of the receiving disc 3. The center of the first driving disc 7 is connected with the output shaft of the first driving motor 6. The outer edge of the end surface of the first driving disc 7 is also provided with a first connecting piece 9. The right outer surface of the screening disc 4 is provided with a second connecting piece 10. The two ends of the first connecting rod 8 are respectively rotationally connected with the first connecting piece 9 and the second connecting piece 10.
[0033] In this embodiment, when the first driving motor works, it drives the first driving disc to rotate, which will drive the first connecting piece to swing around the first driving disc. The two ends of the first connecting rod are respectively rotationally connected with the screening disc and the first driving disc. The two ends of the screening plate are rotationally connected with the vertical plate, and the bottom of the vertical plate is connected (also rotationally connected) with the inner wall of the receiving disc. Therefore, when the first driving disc rotates, it will drive the left end of the first connecting rod to reciprocating rotate, so as to drive the screening disc to rotate around the vertical plate, or the screening disc to rotate through the vertical plate and the receiving disc, or the screening disc to rotate around the vertical plate and the receiving disc, thereby realizing the screening of the materials.
[0034] As shown in Figure 1 , 2 As shown, the top of the screening disc 4 is provided with a screening cavity 11, and the bottom surface of the screening cavity 11 is uniformly provided with a plurality of screening holes (not shown in the figure) which are in communication with the bottom surface of the screening disc 4.
[0035] The top of the receiving disc 3 is provided with a receiving cavity 12, and the screening disc 4 is arranged directly above the receiving cavity 12.
[0036] The bottom of the vertical plate is connected with the inner wall of the receiving cavity. The materials are put into the screening cavity. When the first driving part drives the screening disc to swing, the materials smaller than the diameter of the screening hole will fall out of the screening hole into the receiving cavity of the receiving disc below, and the materials are received through the receiving cavity of the receiving disc.
[0037] As shown in Figure 1 ,2 As shown, the left side of the screening disc 4 is provided with an upper discharge port 13 communicating with the screening chamber 11, and the left outer wall of the screening disc 4 is provided with a first discharge pipe 14 connected with the upper discharge port 13, and the first discharge pipe 14 is provided with a first valve 15.
[0038] The left side of the receiving disc 3 is provided with a lower discharge port 16 communicating with the receiving chamber 12, and the left outer wall of the lower discharge port 16 is provided with a second discharge pipe 17 connected with the lower discharge port 16, and the second discharge pipe 17 is provided with a second valve 18.
[0039] In this embodiment, in order to facilitate the discharge of the screened material in the screening chamber and the receiving chamber, manual material taking is not required, and therefore corresponding upper and lower discharge ports, discharge pipes and valves are provided. After screening is completed, the second driving part drives the mounting plate to rotate, so that the right end of the mounting plate is lifted, and then the receiving disc and the screening disc are inclined downward from right to left, the corresponding valve is opened, and then the material in the screening chamber and the receiving chamber will enter the corresponding first discharge pipe and the second discharge pipe through the corresponding upper discharge port and the lower discharge port, and be discharged from the corresponding discharge port. The corresponding discharge pipe can also be directed to a receiving box or a receiving bag for collecting the corresponding material. The small particle material after screening can be directly placed into an injection molding machine for injection molding, and the large particle material can be collected to a certain amount and then crushed again by a crusher. When normal screening is performed, the corresponding valve closes the corresponding discharge pipe, so that the material in the screening disc will not leak from the upper discharge port and the first discharge pipe when the screening disc swings. When discharging is required, the corresponding valve is opened, and the subsequent mounting plate is inclined, so that the corresponding material can be discharged from the corresponding discharge port and the discharge pipe.
[0040] Referring to Figure 1 , 2 As shown, the second driving part includes a cylinder 19, which is arranged above the right side of the mounting plate 2, the top of the cylinder 19 is rotationally connected with the bracket 1 above the right side of the mounting plate 2, and the output shaft at the bottom of the cylinder 19 is rotationally connected with the top right side of the mounting plate 2.
[0041] In this embodiment, the extension and retraction of the output shaft of the cylinder drive the mounting plate and the screening part above to be lifted or laid flat, which facilitates the discharging or screening action.
[0042] Referring to Figure 1 , 2As shown, the bracket 1 comprises a bottom plate 20 and a vertical plate 21, the top surface of the bottom plate 20 is provided with two side plates 22, the two side plates 22 are respectively arranged near the front side and the rear side of the bottom plate 20, the front side and the rear side of the left end of the mounting plate 2 are respectively provided with a connecting shaft 23, and the two connecting shafts 23 are respectively rotationally connected with the two side plates 22.
[0043] The vertical plate 21 is arranged on the top surface of the bottom plate 20 on the right side of the mounting plate 2, and the top of the cylinder 19 is rotationally connected with the upper portion of the vertical plate 21.
[0044] The left side surface of the vertical plate 21 is further provided with a supporting plate 24, and the supporting plate 24 is arranged near the bottom plate 20; the supporting plate is arranged below the cylinder.
[0045] When the output shaft of the cylinder 19 is in the extended state, the right end bottom surface of the mounting plate 2 abuts against the top surface of the supporting plate 24;
[0046] When the output shaft of the cylinder 19 is in the retracted state, the mounting plate 2 is driven to rotate around the side plate 22, and the right end of the mounting plate 2 is arranged above the supporting plate 24.
[0047] In this embodiment, when the right end of the mounting plate abuts against the supporting plate, the top surface of the receiving disc and the top surface of the mounting plate are parallel to the horizontal plane, so that when the material is screened, all the screened material in the receiving disc can be contacted and will not fall outside the receiving disc. After the screening is completed, the output shaft of the cylinder is retracted, the right end of the mounting plate is pulled to move upward, so that the top surface of the mounting plate is arranged to be inclined downward from right to left, thereby facilitating the material to be sent out from the corresponding discharge pipe. During the screening of the material, the screening disc will swing, therefore, if only the connecting shaft and the side plate support the left end of the mounting plate and the right end is supported by the cylinder, the cylinder is easy to be damaged, or when the gas source is unstable, the mounting plate can swing, therefore, in order to ensure the stability of the screening process, the supporting plate is arranged, so that the mounting plate is supported by the connecting shaft and the side plate on the left side and the right end is supported by the supporting plate during the screening of the material, thereby ensuring the stability of the screening of the material.
Claims
1. A screening device for plastic ground material, characterized in that: The utility model provides a screening device, including support and set up on the support screen part, screen part includes mounting plate, install the material receiving tray and screen disc on mounting plate, the left side of mounting plate is rotatably connected with support, the bottom of material receiving tray is fixedly installed on mounting plate, the diameter of screen disc is less than the diameter of material receiving tray, screen disc sets up the just above of material receiving tray, two sides of screen disc are rotatably connected with material receiving tray through a vertical plate respectively, It is further provided with first drive part and second drive part, the first drive part is configured to drive the screen disc to swing relative to the material receiving tray, the second drive part is configured to drive the mounting plate to rotate around the support.
2. A device for sizing plastic ground material according to claim 1, characterized in that: Two vertical plates are symmetrically arranged on the front side and the back side of the screen disc, the bottom of the vertical plate is rotatably connected with the inner wall of the material receiving tray, and / or the top of the vertical plate is rotatably connected with the outer side wall of the screen disc. When the vertical plate is perpendicular to the top surface of the mounting plate, the screen disc is coaxially arranged above the material receiving tray.
3. The apparatus for sizing plastic ground material according to claim 1, wherein: The top of the screen disc is provided with a screening chamber, and a plurality of screening holes are uniformly distributed on the bottom surface of the screening chamber and communicate with the bottom surface of the screen disc. The top of the material receiving tray is provided with a material receiving chamber, and the screen disc is arranged above the material receiving chamber.
4. A plastics powder screening apparatus according to claim 3, wherein: An upper discharge port communicating with the screening chamber is arranged on the left side surface of the screen disc, a first discharge pipe connected with the upper discharge port is arranged on the left side outer wall of the screen disc, and a first valve is arranged on the first discharge pipe. A lower discharge port communicating with the material receiving chamber is arranged on the left side surface of the material receiving tray, a second discharge pipe connected with the lower discharge port is arranged on the left side outer wall of the lower discharge port, and a second valve is arranged on the second discharge pipe.
5. The apparatus for sizing plastic ground material according to claim 1, wherein: The first drive part includes a first drive motor, a first drive disc and a first connecting rod, the first drive motor is longitudinally installed on the mounting plate on the right side of the material receiving tray, the center of the first drive disc is connected with the output shaft of the first drive motor, a first connecting piece is further arranged at the outer edge of the end surface of the first drive disc, a second connecting piece is arranged on the right side outer surface of the screen disc, and the two ends of the first connecting rod are rotatably connected with the first connecting piece and the second connecting piece respectively.
6. The apparatus of claim 1, wherein: The second drive part includes a pneumatic cylinder, the pneumatic cylinder is arranged above the right side of the mounting plate, the top of the pneumatic cylinder is rotatably connected with the support above the right side of the mounting plate, and the output shaft at the bottom of the pneumatic cylinder is rotatably connected with the top right side of the mounting plate.
7. A screening device for plastic ground material according to claim 6, characterized in that: The support includes a bottom plate and a vertical plate, two side plates are arranged on the left side of the top surface of the bottom plate, the two side plates are arranged close to the front side and the back side of the bottom plate respectively, a connecting shaft is arranged on the front side and the back side of the left end of the mounting plate respectively, and the two connecting shafts are rotatably connected with the two side plates respectively. The vertical plate is arranged on the top surface of the bottom plate on the right side of the mounting plate, and the top of the pneumatic cylinder is rotatably connected with the upper side of the vertical plate.
8. A plastics powder screening apparatus according to claim 7, wherein: A supporting plate is further installed on the left side surface of the vertical plate, and the supporting plate is arranged close to the bottom plate. In the state that the output shaft of the pneumatic cylinder is stretched out, the bottom surface of the right end of the mounting plate abuts against the top surface of the supporting plate. The cylinder output shaft retracts, drives the mounting plate to rotate around the side plate, and sets the right end of the mounting plate above the supporting plate.