Screening mechanism used before plastic particle feeding
The pre-feed screening mechanism for plastic granules, designed with multi-layer screening plates and air jets, solves the problems of material accumulation and impurity removal on the filter plates, achieving automated material discharge and efficient screening, and improving the quality of plastic products.
Patent Information
- Application Number
- CN202423199501.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing plastic pellet screening devices, material accumulation on the filter plate affects the subsequent screening effect, and impurities such as dust are not effectively removed, affecting the quality of plastic products.
Design a screening mechanism for plastic granules before feeding. It adopts a multi-layer screening plate combined with a vibrating motor, and is equipped with an air jet and a discharge port. The high-speed airflow blown out by the air jet automatically removes the accumulated material, and a dust collection layer is set at the bottom to screen out dust.
It achieves automated material removal, avoids excessive material on the filter plate from affecting the screening effect, and improves screening accuracy and the quality of plastic products.
Smart Images
Figure CN223820885U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic particle production, especially to a screening mechanism before plastic particle feeding. BACKGROUND
[0002] When plastic products are made of plastic particles, the impurities in the plastic particles need to be filtered and removed, otherwise the processing quality of the plastic products will be affected. Under normal circumstances, the impurities in the plastic particles are not consistent in size with the particles of the raw materials for processing, so the filter plate with through holes of different aperture sizes can effectively screen the plastic raw materials for processing. The filter plate is arranged in the screening machine, and the screening is carried out by vibration.
[0003] The screening machine is a device for screening plastic particles of different sizes through holes of different sizes, which facilitates further processing of plastic particles of different sizes, and also screens the crushed plastic to screen the finished products meeting the particle size for processing of the plastic. Moreover, the different materials after screening need to be transferred to different places, which is very troublesome, especially the materials left on the filter plate.
[0004] The existing plastic particle screening device is mostly realized by vibration of the filter plate to effectively screen the impurities in the plastic particles, but in the actual vibration screening process. After the raw materials and impurities are separated, one of them will fall down, and the other will remain on the filter plate. With time, the materials left on the filter plate become more and more, which will affect the subsequent screening effect. In addition, some dust and other substances are easily mixed in the plastic particles, which need to be removed during the processing of the plastic products, otherwise the processing quality of the plastic products will be affected. SUMMARY
[0005] Therefore, the purpose of the utility model is to provide a screening mechanism before plastic particle feeding to solve the problem that the materials accumulated on the filter plate during screening of the screening machine will affect the subsequent screening effect.
[0006] In order to achieve the above purpose, the utility model provides a screening mechanism before plastic particle feeding, which comprises a screening box body for screening plastic particles according to different particle sizes, and further comprises:
[0007] A screening plate fixedly connected in the screening box body, a plurality of through holes with the same size are arranged on the screening plate for screening plastic particles of different sizes, and a vibration motor is fixedly connected to the lower end of the screening plate;
[0008] The discharge port is located on the side wall of the screening box body, and the outer side of the discharge port is also communicated with the discharge pipe.
[0009] Further, the screening plate is also provided with a jet port above the screening plate, and the jet port is also located on the side wall of the screening box body and located on the other side opposite to the discharge port.
[0010] Further, the outer side of the jet port is connected with the jet pipe, and the jet pipe is communicated with the external gas source through the gas conveying pipe.
[0011] Further, the screening plate is provided with a plurality of screening plates, which are arranged equidistantly in the screening box body, and the lower end of each screening plate is fixedly connected with a vibration motor, and a group of jet ports and discharge ports are arranged above each screening plate, and the inner side of each discharge port is provided with a sealing plate, and the outer side of each discharge port is connected with a discharge pipe.
[0012] Further, the discharge port and the jet port are arranged close to the upper surface of the screening plate.
[0013] Further, the sizes of the through holes on different screening plates are different, and the inner diameter of the through hole on the lower screening plate is smaller than the inner diameter of the through hole on the upper screening plate.
[0014] Further, the bottom of the screening box body is provided with an ash collecting layer, and the ash collecting layer is located below the lowermost screening plate, and the lower end of the screening box body is provided with a pipeline and a gate valve for discharging ash.
[0015] Further, the top of the screening box body is fixedly connected with a mounting plate, and the mounting plate is provided with a lifting cylinder, and the output shaft of the lifting cylinder is fixedly connected with a connecting piece, and the connecting piece is fixedly connected with the uppermost sealing plate through a connecting rod.
[0016] Further, the two adjacent sealing plates are also fixedly connected through the connecting rod, and the connecting rod is slidably connected with the corresponding screening plate.
[0017] Further, the top of the screening box body is also provided with a feeding conveyor belt, and the end of the feeding conveyor belt is located at the center of the opening at the top of the screening box body.
[0018] The utility model discloses an advantageous effect: 1, through setting up the screening board in the screening box body, and setting up the vibration motor at the lower end of screening board to high -efficient screening plastic particle, in addition, set up the air outlet and the discharge port above the screening board, after the material that screens remaining accumulates to certain degree ( or the scheduled discharge), just can blow out high -speed airflow through the air outlet and blow out the material that remains through the discharge port, realize automatic and remove the material that remains to other place, not only convenient and good to use and avoid the material on the filter plate too much influence the screening effect of following.
[0019] 2, set up multiple groups of screening board, the size of the through -hole on different screening board is different, and the through -hole inner diameter on the screening board below is less than the through -hole inner diameter on the screening board above, can therefore according to the size of plastic particle, accurately screen the plastic particle into multiple different raw materials, improve the final screening effect.
[0020] 3, set up one sealing plate at each discharge port, and the two sealing plates that are adjacent up and down are also fixedly connected through the connecting rod, and the connecting rod is slidably connected with the corresponding screening board. Therefore, a group of lifting cylinders can drive all sealing plates to move simultaneously, and the discharge ports are opened or closed uniformly, which makes the operation simpler, reduces errors and reduces costs. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0022] Figure 1 It is the overall structure schematic diagram of the utility model device.
[0023] Figure 2 It is the internal mechanism schematic diagram of the screening box body in the utility model device.
[0024] Figure 3 It is the internal structure schematic diagram of the utility model device.
[0025] Figure 4 It is Figure 3 The enlarged view of part A in the figure.
[0026] Marked as:
[0027] 101, screening box, 102, feeding conveyor belt, 103, mounting plate, 104, lifting cylinder, 105, screening plate, 106, discharge port, 107, sealing plate, 108, discharge pipe, 109, connecting rod, 110, air jet, 111, air jet pipe, 112, air conveying pipe, 113, connecting piece, 114, vibration motor. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed in combination with specific embodiments.
[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning by those skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0030] The first aspect of the utility model, as shown in Figure 1 , Figure 2 and Figure 3 , because the plastic particles may be mixed with a variety of impurities, in order to distinguish these impurities. The screening box 101 for screening plastic particles according to different particle size is arranged, and the screening plate 105 is fixedly connected in the screening box 101, a plurality of through holes with the same size are arranged on the screening plate 105, which is used for screening plastic particles with different sizes, and the lower end of the screening plate 105 is fixedly connected with the vibration motor 114.
[0031] Specifically, the screening plate 105 is provided with a plurality of screening plates, which are arranged equidistantly in the screening box 101. The lower end of each screening plate 105 is fixedly connected with a vibration motor 114. The sizes of the through holes on different screening plates 105 are different, and the inner diameter of the through hole on the lower screening plate 105 is smaller than that of the through hole on the upper screening plate 105.
[0032] Therefore, the plastic particles and the impurities in the plastic particles will be screened into several categories according to the particle size, and will be left in each screening plate 105.
[0033] Preferably, three screening plates 105 are arranged, and the bottom of the screening box 101 is provided with an ash collecting layer below the lowermost screening plate 105, and the lower end of the screening box 101 is provided with a pipeline and a gate valve for discharging ash.
[0034] The uppermost screening plate 105 is further provided with a feeding conveyor belt 102, and the end of the feeding conveyor belt 102 is located at the center of the top opening of the screening box 101.
[0035] A plurality of groups of screening plates 105 are arranged, the sizes of the through holes on different screening plates 105 are different, and the inner diameters of the through holes on the lower screening plates 105 are smaller than the inner diameters of the through holes on the upper screening plates 105, so that the plastic particles can be accurately screened into a plurality of different raw materials according to the sizes of the plastic particles, and the final screening effect is improved. The lowermost screening plate 105 is provided with an ash collecting layer, so that dust and other substances can be screened out during the screening of the plastic particles, and the product quality of the plastic processing is improved.
[0036] As shown in the second aspect of the utility model, Figure 2 , Figure 3 and Figure 4 , one of the raw materials and impurities will fall off, and the other will remain on the filter plate. Over time, the material remaining on the filter plate will increase, which will affect the subsequent screening effect. Moreover, the different materials after screening need to be transferred to different places, which is very troublesome, especially the material remaining on the filter plate. In view of this, the utility model is provided with a plurality of discharge ports 106, which are arranged above the screening plate 105 and located on the side wall of the screening box 101. The outer side of the discharge port 106 is in communication with a discharge pipe 108, which is fixedly connected with the screening box 101 and used for feeding. The inner side of the discharge port 106 is movably connected with a sealing plate 107.
[0037] In addition, a gas jetting port 110 is arranged above the screening plate 105 and located on the side wall of the screening box 101 and on the side opposite to the discharge port 106. The outer side of the gas jetting port 110 is connected with a gas jetting pipe 111, and the gas jetting pipe 111 is in communication with an external gas source through a gas conveying pipe 112.
[0038] Since the screening plate 105 is arranged in multiple layers, a group of gas jetting ports 110 and discharge ports 106 are arranged above each screening plate 105. The inner side of each discharge port 106 is provided with a sealing plate 107, and the outer side of each discharge port 106 is connected with a discharge pipe 108.
[0039] Preferably, the discharge port 106 and the gas jetting port 110 above each group of screening plates 105 are arranged close to the upper surface of the screening plate 105.
[0040] Vibration motor 114 is arranged at the lower end of the screening plate 105 to efficiently screen the plastic particles. In addition, air jet port 110 and discharge port 106 are arranged above the screening plate 105. When the remaining material is accumulated to a certain degree (or the discharge is performed at a certain time), high-speed airflow is blown through the air jet port 110 to blow the remaining material through the discharge port 106. The remaining material is automatically discharged and transferred to other places. This not only is convenient and easy to use, but also avoids the influence of too much material on the filtering plate on the subsequent screening effect.
[0041] Therefore, the sealing plate 107 needs to be automatically opened and closed. The opening and closing of the sealing plate 107 is driven by the lifting cylinder 104.
[0042] Specifically, the top of the screening box body 101 is fixedly connected with a mounting plate 103. The mounting plate 103 is provided with a lifting cylinder 104. The output shaft of the lifting cylinder 104 is fixedly connected with a connecting piece 113. The connecting piece 113 is fixedly connected with the uppermost sealing plate 107 through a connecting rod 109. The upper and lower adjacent two sealing plates 107 are also fixedly connected through the connecting rod 109, and the connecting rod 109 is slidingly connected with the corresponding screening plate 105.
[0043] A sealing plate 107 is arranged at each discharge port 106. The upper and lower adjacent two sealing plates 107 are also fixedly connected through the connecting rod 109, and the connecting rod 109 is slidingly connected with the corresponding screening plate 105. Therefore, a group of lifting cylinders 104 can simultaneously drive all the sealing plates 107 to move, and uniformly open or close the discharge port 106. This not only makes the operation simpler and reduces errors, but also reduces the cost.
[0044] In summary, the utility model discloses a plurality of sets of screening board 105 are arranged in the screening box 101, and the vibration motor 114 is arranged at the lower end of the screening board 105, and the high -efficient screening plastic particles is arranged the air outlet 110 and the discharge port 106 above the screening board 105, and after the material that is screened remains is accumulated to a certain degree ( or the discharge of the scheduled time is carried out), the high -speed airflow is blown out through the air outlet 110 and the material that remains is blown out through the discharge port 106, realizes the automatic exclusion of the material that remains and removes to other places, not only convenient and easy to use but also avoids the material on the filter plate too much and influences the screening effect of the follow -up, the size of the through -hole on different screening board 105 is different, and the through -hole inner diameter on the lower screening board 105 is less than the through -hole inner diameter on the upper screening board 105, so that the plastic particles can be accurately screened into a plurality of different raw materials according to the size of the plastic particles, and the final screening effect is improved.
[0045] Those of ordinary skill in the art will understand that the above discussion of any embodiment is merely exemplary and is not intended to suggest that the scope of the utility model includes only the examples discussed and / or that descnbed examples are the only ones in which the utility model is operable. Embodiments and / or technical features from different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity. Embodiments of the utility model can be implemented in any of the ways described above and / or in ways equivalent thereto.
[0046] The utility model is intended to cover all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, alternatives and equivalents that fall within the spirit and scope of the utility model are included in the present utility model.
Claims
1. A screening mechanism for plastic granules before feeding, comprising a screening box (101) for screening plastic granules according to different particle sizes, characterized in that, The screening mechanism further includes: A screening plate (105) is fixedly connected inside the screening box (101). The screening plate (105) has several through holes of the same size for screening plastic particles of different sizes. A vibration motor (114) is fixedly connected to the lower end of the screening plate (105). A discharge port (106) is provided above the screening plate (105). The discharge port (106) is located on the side wall of the screening box (101), and the outer side of the discharge port (106) is also connected to the discharge pipe (108). The discharge pipe (108) is fixedly connected to the screening box (101) for feeding materials. A sealing plate (107) is also movably connected to the inner side of the discharge port (106). An air jet (110) is also provided above the screening plate (105). The air jet (110) is also located on the side wall of the screening box (101) and on the opposite side of the discharge port (106).
2. The screening mechanism for plastic granules before feeding according to claim 1, characterized in that, The outside of the jet nozzle (110) is connected to the jet pipe (111), and the jet pipe (111) is connected to an external air source through the air supply pipe (112).
3. The screening mechanism for plastic granules before feeding according to claim 1, characterized in that, The screening plates (105) are provided in several ways and are arranged at equal intervals in the screening box (101). Each screening plate (105) is fixedly connected to a vibration motor (114) at its lower end. Each screening plate (105) is provided with a set of air jets (110) and discharge ports (106) at its upper part. Each discharge port (106) is provided with a sealing plate (107) on its inner side and a discharge pipe (108) is connected to the outer side of each discharge port (106).
4. The screening mechanism for plastic granules before feeding according to claim 3, characterized in that, The discharge port (106) and the air jet (110) are both located on the upper surface of the screening plate (105).
5. The screening mechanism for plastic granules before feeding according to claim 3, characterized in that, The through holes on different sieve plates (105) are of different sizes, and the inner diameter of the through holes on the lower sieve plate (105) is smaller than that on the upper sieve plate (105).
6. A screening mechanism for plastic granules before feeding, as described in claim 1 or 3, characterized in that, The bottom of the screening box (101) is provided with a dust collection layer, which is located below the bottommost screening plate (105), and the lower end of the screening box (101) is provided with a pipe and a gate valve for ash discharge.
7. The screening mechanism for plastic granules before feeding according to claim 3, characterized in that, The top of the screening box (101) is fixedly connected to an installation plate (103), and a lifting cylinder (104) is provided on the installation plate (103). A connector (113) is fixedly connected to the output shaft of the lifting cylinder (104), and the connector (113) is fixedly connected to the uppermost sealing plate (107) through a connecting rod (109).
8. The screening mechanism for plastic granules before feeding according to claim 7, characterized in that, The two adjacent sealing plates (107) are also fixedly connected by a connecting rod (109), and the connecting rod (109) is slidably connected to the corresponding screening plate (105).
9. The screening mechanism for plastic granules before feeding according to claim 1, characterized in that, The top of the screening box (101) is also provided with a feeding conveyor belt (102), the end of which is located at the center of the top opening of the screening box (101).