A vibrating screening structure for polyethylene chemically crosslinked particles
Patent Information
- Application Number
- CN202521984623.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-15
AI Technical Summary
这种振动筛精度高，适用于小颗粒筛选（尤其是0.1-1mm细颗粒），但是速度慢（颗粒水平移动速度仅0.1-0.3m/s）、易堵孔，更适用于实验室精密筛分、医药/食品行业高纯度分选
[0013]本申请的有益效果是：本申请提供的该聚乙烯化学交联颗粒用振动筛选结构的结构简单、装配和拆卸简便，通过第一位置调节件、第二位置调节件调节筛网相对于基础架子的倾斜角度，使得筛网倾斜设置，筛网倾斜式设置可以让颗粒受重力和振动的双重作用，沿倾斜面螺旋下滑，通过单次或者少量接触筛孔完成筛选，处理量大（重力加速颗粒流动）、防堵孔（颗粒滚动通过筛网，减少卡滞）、筛选效率高。
Smart Images
Figure CN224657321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening machines, specifically to a vibration screening structure for chemically cross-linked polyethylene particles. Background Technology
[0002] Chemically cross-linked polyethylene (CCPE) granules are modified materials produced by chemically linking polyethylene molecular chains into a three-dimensional network structure using methods such as peroxides, silanes, or radiation cross-linking. Their core characteristic stems from the stable network structure formed by cross-linking. CCPE granules are granular, and the produced granules vary in size, requiring a screening machine to separate granules of the desired diameter.
[0003] Currently, most screening devices on the market use horizontally arranged screens (horizontal vibrating screens). Their working principle is that the screen is completely horizontal, and particles jump forward using the vertical excitation force generated by the vibrating motor, achieving grading through repeated impacts with the screen. This type of vibrating screen offers high precision and is suitable for screening small particles (especially fine particles of 0.1-1mm), but it is slow (particle horizontal movement speed is only 0.1-0.3m / s) and prone to clogging. It is more suitable for precision sieving in laboratories and high-purity sorting in the pharmaceutical / food industries. This type of screening device is not well-suited for screening chemically cross-linked polyethylene particles. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vibration screening structure for chemically cross-linked polyethylene particles.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a vibration screening structure for chemically cross-linked polyethylene particles, comprising: Basic framework; A movable frame, which is pivotally connected to the base frame; The system comprises a mounting frame, a screen, and a vibration generator. The screen is mounted on the mounting frame, which is connected to the movable frame and is positioned above the movable frame. The vibration generator is mounted on the mounting frame. A first position adjusting component and a second position adjusting component are provided. One end of the first position adjusting component is mounted on the movable frame, and one end of the second position adjusting component is mounted on the movable frame. The first position adjusting component is provided with a preset number of first through holes, which penetrate the first position adjusting component. The second position adjusting component is provided with a preset number of second through holes, which penetrate the second position adjusting component. The first bolt and the second bolt are mounted on the movable frame; When the first bolt is inserted into the first through hole at the preset position on the first position adjusting member and the second bolt is inserted into the second through hole at the preset position on the second position adjusting member 7, the movable frame stays at the preset position.
[0006] Preferably, the device further includes a hopper, which is pivotally connected to the mounting frame so that the hopper can pivot relative to the mounting frame; the hopper has a first chamber and an opening at the bottom of the hopper, the opening communicating with the first chamber and located above the screen.
[0007] Preferably, the device further includes a third position adjusting member and a fourth position adjusting member. One end of the third position adjusting member is fixedly connected to the mounting frame, and one end of the fourth position adjusting member is fixedly connected to the mounting frame. The third position adjusting member has a preset number of third through holes, which penetrate the third position adjusting member. The fourth position adjusting member has a preset number of fourth through holes, which penetrate the fourth position adjusting member. Bolts are inserted into the third through holes at preset positions on the third position adjusting member and the fourth through holes at preset positions on the fourth position adjusting member, and the bolts are connected to the hopper, thereby causing the hopper to tilt at a preset angle relative to the mounting frame.
[0008] Preferably, it also includes a buffer mechanism, which is connected to the mounting frame on one side and the movable frame on the other side, so that the buffer mechanism provides cushioning to the mounting frame.
[0009] Preferably, the buffer mechanism includes a first support member, a second support member, and a spring. The first support member is mounted on the mounting frame, the second support member is mounted on the movable frame, and the spring is disposed between the first support member and the second support member.
[0010] Preferably, the buffer mechanism further includes a first screw, a first clamping block, a second screw, and a second clamping block. The first screw is mounted on the first support member, the first clamping block is fixedly connected to the head end of the first screw, and at least a portion of one end of the spring is clamped between the first clamping block and the first support member, thereby fixing one end of the spring to the first support member. The second screw is mounted on the second support member, the second clamping block is connected to the head end of the second screw, and at least a portion of the other end of the spring is clamped between the second clamping block and the second support member, thereby connecting the other end of the spring to the second support member.
[0011] Preferably, the first support member includes a first connecting segment and a first mounting segment, the first mounting segment being fixedly connected to the first connecting segment and perpendicular to the first mounting segment; the second support member includes a second connecting segment and a second mounting segment, the second connecting segment being fixedly connected to the second mounting segment and perpendicular to the second mounting segment.
[0012] Preferably, it also includes a storage compartment mounted on the base frame, the storage compartment having a storage cavity located below the screen.
[0013] The beneficial effects of this application are: the vibration screening structure for chemically cross-linked polyethylene particles provided by this application has a simple structure, is easy to assemble and disassemble. The tilt angle of the screen relative to the base frame is adjusted by the first position adjustment component and the second position adjustment component, so that the screen is tilted. The tilted screen setting allows the particles to be subjected to the dual effects of gravity and vibration, and to spiral down along the inclined surface. The screening is completed by contacting the screen holes once or in a small number of times. It has a large processing capacity (gravity accelerates the flow of particles), prevents clogging (particles roll through the screen, reducing jamming), and has high screening efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a vibration screening structure for chemically cross-linked polyethylene particles provided by this utility model.
[0015] Figure 2 Another structural schematic diagram of a vibration screening structure for chemically cross-linked polyethylene particles provided by this utility model.
[0016] Figure 3 Another structural schematic diagram of a vibration screening structure for chemically cross-linked polyethylene particles provided by this utility model.
[0017] Figure 4 This is a schematic diagram of the buffer mechanism of a vibration screening structure for chemically cross-linked polyethylene particles provided by this utility model.
[0018] Figure 5 Another structural schematic diagram of a vibration screening structure for chemically cross-linked polyethylene particles provided by this utility model. Detailed Implementation
[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0022] Please refer to Figure 1-5 This application provides a vibration screening structure for chemically cross-linked polyethylene particles (hereinafter referred to as "the vibration screening structure"), which includes: Basic framework 1; Movable frame 2, which is pivotally connected to the base frame 1; The mounting frame 3, screen 12, and vibration generator 10 are mounted on the mounting frame 3. The mounting frame 3 is connected to the movable frame 2 and is located above the movable frame 2. The vibration generator 10 is mounted on the mounting frame 3. A first position adjusting member 6 and a second position adjusting member 7 are provided. One end of the first position adjusting member 6 is mounted on the movable frame 2, and one end of the second position adjusting member 7 is mounted on the movable frame 2. The first position adjusting member 6 is provided with a preset number of first through holes 60, and the first through holes 60 penetrate the first position adjusting member 6. The second position adjusting member 7 is provided with a preset number of second through holes 70, and the second through holes 70 penetrate the second position adjusting member 7. First bolt 14 and second bolt 15 are provided on the movable frame 2; Specifically, when the first bolt 14 is inserted into the first through hole 60 at a preset position on the first position adjusting member 6, and the second bolt 15 is inserted into the second through hole 70 at a preset position on the second position adjusting member 7, the movable frame 2 remains at the preset position. Thus, by inserting the first bolt 14 into the first through hole 60 at different positions on the first position adjusting member 6, and the second bolt 15 into the second through hole 70 at different positions on the second position adjusting member 7, different degrees of inclination of the movable frame 2 relative to the base frame 1 can be achieved. In this application, the base frame 1 and the movable frame 2 are pivotally connected by a hinge 13, thereby allowing the movable frame 2 to pivot relative to the base frame 1.
[0023] In some embodiments of this application, please refer to Figure 1-5 The vibrating screening structure also includes a hopper 4, which is pivotally connected to the mounting frame 3, allowing the hopper 4 to pivot relative to the mounting frame 3. The hopper 4 has a first chamber 40, and an opening 41 is provided at the bottom of the hopper 4, communicating with the first chamber 40. The opening 41 is located above the screen 12. Thus, when cross-linked polyethylene particles are inverted in the first chamber 40 of the hopper 4, the cross-linked polyethylene particles flow into the screen 12 through the opening 41. In this application, the hopper 4 and the mounting frame 3 can be pivotally connected together via hinges; of course, they can also be pivotally connected in other ways.
[0024] In some embodiments of this application, please refer to Figure 1-5The vibration screening structure further includes a third position adjusting member 7 and a fourth position adjusting member 8. One end of the third position adjusting member 7 is fixedly connected to the mounting frame 3, and one end of the fourth position adjusting member 8 is fixedly connected to the mounting frame 3. The third position adjusting member 7 is provided with a preset number of third through holes 70, which penetrate the third position adjusting member 7. The fourth position adjusting member 8 is provided with a preset number of fourth through holes 80, which penetrate the fourth position adjusting member 8. Bolts are inserted into the third through holes 70 at preset positions on the third position adjusting member 7 and the fourth through holes 80 at preset positions on the fourth position adjusting member 8, and the bolts are connected to the hopper 4, thereby causing the hopper 4 to tilt at a preset angle relative to the mounting frame 3. In this way, the hopper 4 can be tilted at an angle relative to the mounting frame 3. When the tilt angle of the hopper 4 relative to the mounting frame 3 is large, the polyethylene chemical cross-linked particles in the hopper 4 can flow quickly into the screen 12; when the tilt angle of the hopper 4 relative to the mounting frame 3 is small, the flow rate of the polyethylene chemical cross-linked particles in the hopper 4 is reduced.
[0025] In some embodiments of this application, please refer to Figure 1-5 The vibration screening structure also includes a buffer mechanism 11, which is connected to the mounting frame 3 on one hand and to the movable frame 2 on the other hand, so that the buffer mechanism 11 provides buffering to the mounting frame 3.
[0026] In some embodiments of this application, please refer to Figure 1-5 The buffer mechanism 11 includes a first support member 111, a second support member 112, and a spring 117. The first support member 111 is mounted on the mounting frame 3, the second support member 112 is mounted on the movable frame 2, and the spring 117 is disposed between the first support member 111 and the second support member 112. Thus, when the mounting frame 3 shakes or moves longitudinally, the spring 117 provides a buffering force.
[0027] In some embodiments of this application, please refer to Figure 1-5The buffer mechanism 11 further includes a first screw 113, a first clamping block 114, a second screw 115, and a second clamping block 116. The first screw 113 is mounted on the first support member 111, the first clamping block 114 is fixedly connected to the head end of the first screw 113, and at least a portion of one end of the spring 117 is clamped between the first clamping block 114 and the first support member 111, thereby fixing one end of the spring 117 to the first support member 111. The second screw 115 is mounted on the second support member 112, the second clamping block 116 is connected to the head end of the second screw 115, and at least a portion of the other end of the spring 117 is clamped between the second clamping block 116 and the second support member 112, thereby connecting the other end of the spring 117 to the second support member 112.
[0028] Please refer to some embodiments of this application. Figure 1-5 The first support member 111 includes a first connecting section 1111 and a first mounting section 1112, the first mounting section 1112 being fixedly connected to the first connecting section 1111, and the first connecting section 1111 being perpendicular to the first mounting section 1112; the second support member 112 includes a second connecting section 1121 and a second mounting section 1122, the second connecting section 1121 being fixedly connected to the second mounting section 1122, and the second connecting section 1121 being perpendicular to the second mounting section 1122. In this application, a first screw 113 is mounted on the first mounting section 1112 of the first support member 111, and a second screw 115 is mounted on the second mounting section 1122 of the second support member 112.
[0029] Please refer to some embodiments of this application. Figure 1-5 The vibrating screening structure also includes a storage chamber 9, which is mounted on the base frame 1. The storage chamber 9 has a storage cavity 90 located below the screen 12. Thus, the polyethylene chemically cross-linked particles screened by the screen 12 flow into the storage cavity 90 of the storage chamber 9.
[0030] The vibration screening structure for chemically cross-linked polyethylene particles provided in this application has a simple structure and is easy to assemble and disassemble. The tilt angle of the screen relative to the base frame can be adjusted by the first position adjustment component and the second position adjustment component, so that the screen is tilted. The tilted screen setting allows the particles to be subjected to the dual effects of gravity and vibration, and slide down the inclined surface in a spiral. The screening is completed by contacting the screen holes once or in a small number of times. It has a large processing capacity (gravity accelerates the flow of particles), prevents clogging (particles roll through the screen, reducing jamming), and has high screening efficiency.
[0031] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A vibration screening structure for chemically cross-linked polyethylene particles, characterized in that, include: Basic framework; A movable frame, which is pivotally connected to the base frame; The system comprises a mounting frame, a screen, and a vibration generator. The screen is mounted on the mounting frame, which is connected to the movable frame and is positioned above the movable frame. The vibration generator is mounted on the mounting frame. A first position adjusting component and a second position adjusting component are provided. One end of the first position adjusting component is mounted on the movable frame, and one end of the second position adjusting component is mounted on the movable frame. The first position adjusting component is provided with a preset number of first through holes, which penetrate the first position adjusting component. The second position adjusting component is provided with a preset number of second through holes, which penetrate the second position adjusting component. The first bolt and the second bolt are mounted on the movable frame; When the first bolt is inserted into the first through hole at the preset position on the first position adjusting component, and the second bolt is inserted into the second through hole at the preset position on the second position adjusting component, the movable frame stays at the preset position.
2. The vibration screening structure according to claim 1, characterized in that, It also includes a hopper, which is pivotally connected to the mounting frame so that the hopper can pivot relative to the mounting frame; the hopper has a first chamber and an opening at the bottom of the hopper, the opening communicating with the first chamber and located above the screen.
3. The vibration screening structure according to claim 2, characterized in that, It also includes a third position adjusting component and a fourth position adjusting component. One end of the third position adjusting component is fixedly connected to the mounting frame, and one end of the fourth position adjusting component is fixedly connected to the mounting frame. The third position adjusting component is provided with a preset number of third through holes, which penetrate the third position adjusting component. The fourth position adjusting component is provided with a preset number of fourth through holes, which penetrate the fourth position adjusting component. Bolts are inserted into the third through holes at preset positions on the third position adjusting component and the fourth through holes at preset positions on the fourth position adjusting component, and the bolts are connected to the hopper, thereby causing the hopper to tilt at a preset angle relative to the mounting frame.
4. The vibration screening structure according to claim 1, characterized in that, It also includes a buffer mechanism, which is connected to the mounting frame on one side and the movable frame on the other side, so that the buffer mechanism provides cushioning to the mounting frame.
5. The vibration screening structure according to claim 4, characterized in that, The buffer mechanism includes a first support member, a second support member, and a spring. The first support member is mounted on the mounting frame, the second support member is mounted on the movable frame, and the spring is disposed between the first support member and the second support member.
6. The vibration screening structure according to claim 5, characterized in that, The buffer mechanism further includes a first screw, a first clamping block, a second screw, and a second clamping block. The first screw is mounted on the first support member, the first clamping block is fixedly connected to the head end of the first screw, and at least a portion of one end of the spring is clamped between the first clamping block and the first support member, thereby fixing one end of the spring to the first support member. The second screw is mounted on the second support member, the second clamping block is connected to the head end of the second screw, and at least a portion of the other end of the spring is clamped between the second clamping block and the second support member, thereby connecting the other end of the spring to the second support member.
7. The vibration screening structure according to claim 5, characterized in that, The first support member includes a first connecting section and a first mounting section, the first mounting section being fixedly connected to the first connecting section and perpendicular to the first mounting section; the second support member includes a second connecting section and a second mounting section, the second connecting section being fixedly connected to the second mounting section and perpendicular to the second mounting section.
8. The vibration screening structure according to claim 1, characterized in that, It also includes a storage compartment mounted on the base frame, the storage compartment having a storage cavity located below the screen.