Masterbatch vibration screening device for shrink film production
By designing the vibrating screen with an inclined sliding zone and guide plate structure, the problem of edge accumulation during masterbatch screening was solved, improving screening efficiency and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU JUCHUANG INNOVATION MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-08
AI Technical Summary
In the process of screening masterbatch, existing linear vibrating screens are prone to material accumulation at the edges, resulting in low screening efficiency and increased labor intensity.
Design an inclined vibrating screen, comprising a microparticle screen plate, a transition screen plate and a coarse particle screen plate, with guide plates and baffles provided in the sliding zone. The guide plates are inclined to guide masterbatch to the screening zone and prevent edge accumulation.
It effectively prevents masterbatch from accumulating at the edge of the vibrating screen, improves screening efficiency, reduces labor intensity, and achieves smooth screening of masterbatch.
Smart Images
Figure CN224210285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shrink film masterbatch screening technology, and in particular, to a vibrating screening device for masterbatch in shrink film production. Background Technology
[0002] Shrink film is mainly used for packaging products with regular and irregular shapes. Due to its non-toxic and environmentally friendly properties, high transparency, high shrinkage performance and good heat-sealing performance, it is widely used in the processing fields of automotive supplies, plastic products, stationery, books, circuit boards and so on.
[0003] The processing technology of shrink film generally includes batching in an internal mixer, granulation to produce masterbatch, masterbatch vibrating screening, extrusion, and foaming. The purpose of masterbatch vibrating screening is to remove larger and smaller masterbatch particles, resulting in masterbatch with approximately the same particle size. Currently, the most commonly used method in masterbatch screening is the linear vibrating screen. During operation, the masterbatch is poured from one side of the vibrating screen to the higher side. Under the action of the vibrating motor, the masterbatch vibrates and moves towards the lower side of the screen. To ensure the masterbatch moves as close to the center as possible and maintains stable movement, the vibrating motor is usually installed on the axis of symmetry of the vibrating screen, that is, at the center of the width direction. Therefore, the amplitude of vibration is larger and the vibration is stronger at the center of the linear vibrating screen. At this point, the masterbatch near the axis of symmetry experiences greater vibration and is more easily thrown up and moved forward. In contrast, the amplitude of vibration is smaller and the vibration is relatively weaker at the edges of the screen, resulting in slower material movement at the edges. Furthermore, the through-holes at the edges of the vibrating screen further hinder the forward movement of the masterbatch. For the two reasons mentioned above, material often accumulates at the edges of linear vibrating screens due to impeded masterbatch movement, severely affecting the screening efficiency. Furthermore, the accumulation of masterbatch necessitates manual cleaning of the edges, significantly increasing labor intensity. Utility Model Content
[0004] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned problems existing in the prior art, a masterbatch vibrating screening device for shrink film production is provided, which can prevent the accumulation of masterbatch at the edge of the vibrating screen and reduce labor intensity.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a vibrating sieving device for masterbatch in shrink film production, including a support frame, a vibrating screen installed on the top of the support frame, and a vibrating motor installed at the bottom of the vibrating screen. The vibrating screen is inclined and includes a micro-particle screen plate, a transition screen plate, and a coarse-particle screen plate connected in sequence. The micro-particle screen plate has a screening zone and a sliding zone located on both sides of the screening zone. Multiple micro-holes are opened in the screening zone. A baffle is protruding on the side of the sliding zone away from the screening zone. Multiple guide plates are fixedly connected to the baffle on the sliding zone. The guide plates are inclined along the line extending from the micro-particle screen plate to the transition screen plate.
[0006] Furthermore, the guide plate and the particle sieve plate are arranged perpendicular to each other.
[0007] Furthermore, each of the sliding areas on each side is provided with multiple guide plates, and the multiple guide plates are arranged at equal intervals.
[0008] Furthermore, the multiple guide plates located on the same side are arranged parallel to each other.
[0009] Furthermore, the baffle extends along the length of the particle sieve plate, and the included angle between the guide plate and the baffle is α, where 20°≤α≤40°.
[0010] Furthermore, the included angle α between the guide plate and the baffle is 30°.
[0011] Furthermore, the support frame includes a fixed frame and a plurality of support columns fixedly connected to the bottom of the fixed frame, and the vibrating screen is fixedly installed on the fixed frame.
[0012] Furthermore, the bottom of the vibrating screen, corresponding to the sliding zone, is fixedly connected to the fixed frame.
[0013] Furthermore, the vibrating screen and the fixed frame are fixedly connected by bolts. The number of bolts is the same as the number of guide plates. One bolt is set for one guide plate. The bolt is located on the side of the corresponding guide plate close to the transition screen plate, and the bolt is set at the corner where the guide plate and the baffle are connected.
[0014] Furthermore, a reinforcing plate is fixedly installed on the lower surface of the particle sieve plate along its own length direction. The reinforcing plate is arranged along the symmetrical axis of the particle sieve plate. The vibration motor is fixedly installed on the reinforcing plate. Both ends of the reinforcing plate are fixedly connected to the fixed frame on the support frame.
[0015] The beneficial effects of this utility model are as follows: The masterbatch vibrating screening device for shrink film production of this utility model can smoothly move forward even under the action of low amplitude. When it comes into contact with the guide plate, it can move from the sliding area to the screening area along the inclined guide plate, thereby achieving the purpose of screening the masterbatch at the edge. On the one hand, it prevents the masterbatch from accumulating at the edge of the vibrating screen, and on the other hand, it eliminates the need for frequent manual cleaning of the masterbatch at the edge, greatly reducing labor intensity. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a perspective view of the masterbatch vibrating sieving device for shrink film production according to this utility model;
[0018] Figure 2 yes Figure 1 The front view of the vibrating sieve device for masterbatch production of shrink film is shown.
[0019] Figure 3 yes Figure 1 The diagram shows a top view of a vibrating sieve device for masterbatch production in shrink film manufacturing.
[0020] Figure 4 yes Figure 1 The image shows a bottom view of a vibrating sieve device for masterbatch production in the form of shrink film.
[0021] In the diagram: 1. Support frame, 11. Fixed frame, 12. Support column, 2. Vibrating screen, 21. Particle screen plate, 211. Micropores, 212. Screening zone, 213. Sliding zone, 214. Baffle, 215. Guide plate, 216. Reinforcing plate, 22. Transition screen plate, 221. Through hole, 222. Receiving bin, 223. Discharge pipe, 23. Coarse material screen plate, 3. Vibrating motor, 4. Bolt. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0023] Please see Figures 1-4This utility model provides a vibrating sieving device for masterbatch production in shrink film production, including a support frame 1, a vibrating screen 2, and a vibrating motor 3. The vibrating screen 2 is fixedly installed on the top of the support frame 1, and the vibrating motor 3 is installed at the bottom of the vibrating screen 2. The vibrating screen 2 is inclined, wherein the higher end of the vibrating screen 3 forms the feeding end, and the lower end of the vibrating screen 3 forms the discharging end. In use, the masterbatch is fed into the higher end of the vibrating screen 3 through the feeding end cup. Under the vibration of the vibrating screen 2, the masterbatch is slightly thrown up and moves to a lower position. During this process, masterbatch of different particle sizes falls through the corresponding holes, thereby realizing masterbatch sieving.
[0024] Specifically, the vibrating screen 2 includes a particle screen plate 21, a transition screen plate 22, and a coarse screen plate 23 connected sequentially along the direction extending from the feeding end to the discharge end. The feeding end is located at the end of the particle screen plate 21 away from the transition screen plate 22. The transition screen plate 22 is narrowed. The particle screen plate 21 has a rectangular plate structure. Multiple microholes 211 are evenly distributed on the particle screen plate 21. The vibrating motor 3 is located on the axis of symmetry of the particle screen plate 21. The particle screen plate 21 has a screening section 212 and a sliding section 213 located on opposite sides of the screening section 212. The microholes 211 are arranged in the screening section 212. A baffle 214 is protruded on the side of the sliding section 213 away from the screening section 212. Multiple guide plates 215 are fixedly connected to the baffle 214 on the sliding section 213. The guide plates 215 are inclined in the direction extending from the particle screen plate 21 to the transition screen plate 22.
[0025] During operation, the vibrating motor 3 is started, and the masterbatch on the vibrating screen 2 moves downward. During this movement, masterbatch with a particle size smaller than the micropores 211 will pass through the micropores 211, thus achieving the screening of masterbatch of different particle sizes. The masterbatch located at the edge of the vibrating screen 2 will enter the sliding zone 213. Since there are no micropores 211 on the sliding zone 213, the resistance to the moving masterbatch is relatively small, thus ensuring that the masterbatch located at the edge of the vibrating screen 2 can also slide smoothly downward. When the masterbatch slides to contact the guide plate 215, since the guide plate 215 is inclined in the direction extending from the particle screen plate 21 to the transition screen plate 22, the masterbatch can slide along the inclined guide plate 215, thus entering the screening section 212, thereby achieving the screening of this part of the masterbatch. On the one hand, it prevents the accumulation of masterbatch at the edge of the vibrating screen 2, ensuring screening efficiency; on the other hand, it eliminates the need for manual cleaning of masterbatch at the edge of the vibrating screen 2, greatly reducing labor intensity.
[0026] In this embodiment, the guide plate 215 and the particle sieve plate 21 are arranged perpendicular to each other. In addition, multiple guide plates 215 are provided in each sliding area 213, and the multiple guide plates 215 are arranged at equal intervals. Furthermore, the multiple guide plates 215 located on the same side are arranged parallel to each other.
[0027] Baffle 214 extends along the length of particle sieve plate 21, and the included angle between guide plate 215 and baffle 214 is α, wherein 20°≤α≤40°, to ensure that the masterbatch can move along baffle 215 to move from sliding zone 213 to sieve zone 212. As a preferred embodiment, the included angle α between guide plate 215 and baffle 214 is 30°.
[0028] In this embodiment, the surface of the sliding area 213 on the particle sieve plate 21, the inner sidewall of the baffle 214, and the surface of the guide plate 215 are all polished to improve the smoothness of each surface, reduce the friction between the masterbatch and each surface, and thus enable the masterbatch to move smoothly.
[0029] The support frame 1 includes a fixed frame 11 and a plurality of support columns 12 fixedly connected to the bottom of the fixed frame 11. In this embodiment, the fixed frame 11 is a rectangular frame structure, and there are four support columns 12, which are respectively fixedly connected to the four corners of the fixed frame 11. The fixed frame 11 is used to fix the vibrating screen 2, and the support columns 12 are used to support the screen on a bearing surface (e.g., the factory floor).
[0030] In this embodiment, the bottom of the vibrating screen 2 is fixedly connected to the fixed frame 11 at the location corresponding to the sliding area 213. Since there are no holes in the sliding area 213, its structural strength is relatively high. The vibrating screen 2 is fixedly connected to the fixed frame 11 through the sliding area 213, ensuring the connection stability between the two.
[0031] In a preferred embodiment, the vibrating screen 2 and the fixed frame 11 are connected by bolts 4. Furthermore, the number of bolts 4 is the same as the number of guide plates 215, with one bolt 4 corresponding to one guide plate 215. The bolt 4 is located on the side of the corresponding guide plate 215 near the transition screen plate 22, and the bolt 4 is positioned at the corner where the guide plate 215 connects to the baffle 214. In this way, the guide plate 215 can shield the bolt 4, effectively preventing the masterbatch from contacting the bolt 4 and preventing the bolt 4 from obstructing the moving masterbatch.
[0032] In this embodiment, a reinforcing plate 216 is fixedly installed on the lower surface of the particle sieve plate 21 along its own length direction. The reinforcing plate 216 is arranged along the axis of symmetry of the particle sieve plate 21, and the vibrating motor 3 is fixedly installed on the reinforcing plate 216. Both ends of the reinforcing plate 216 are fixedly connected to the fixing frame 11 on the support frame 1. The reinforcing plate 216 increases the structural strength of the vibrating screen 2 on the one hand, and also serves as the mounting carrier for the vibrating motor 3 on the other hand.
[0033] The transition sieve plate 22 has an isosceles trapezoidal structure. The long side of the transition sieve plate 22 is fixedly connected to the lower end of the particulate sieve plate 21, and the short side of the transition sieve plate 22 is fixedly connected to the higher end of the coarse sieve plate 23. The transition sieve plate 22 has through holes 221, the diameter of which is larger than that of the micropores 211. In use, smaller masterbatches fall through the micropores 211 when passing through the particulate sieve plate 21, while masterbatches of the required size fall through the through holes 221 when passing through the transition sieve plate 22. Larger masterbatches pass through the transition sieve plate 22 and then enter the coarse sieve plate 23, finally flowing out from the opening at the lower end of the coarse sieve plate 23. In the above process, smaller and larger masterbatches are screened out through the openings of the micropores 211 and the coarse sieve plate 23 (i.e., the aforementioned discharge end). These two parts are unqualified masterbatches, while the masterbatches falling from the through hole 221 are masterbatches of the required size. Thus, the screening of masterbatches of different particle sizes is achieved.
[0034] In this embodiment, a receiving bin 222 is fixedly installed at the bottom of the transition screen plate 22. The receiving bin 222 has a hollow structure, and a discharge pipe 223 is fixedly connected to the bottom of the receiving bin 222. When the masterbatch moves from the transition screen plate 22, the masterbatch that meets the requirements falls into the receiving bin 222 at the bottom through the through hole 221 and then flows out from the discharge pipe 223, thereby realizing the receiving function.
[0035] The masterbatch vibrating screening device for shrink film production of this utility model can smoothly move forward even under low amplitude when the masterbatch located at the edge of the vibrating screen 2. When it comes into contact with the guide plate 215, it can move from the sliding area 213 to the screening area 212 along the inclined guide plate 215, thereby achieving the purpose of screening the masterbatch at the edge. On the one hand, it prevents the masterbatch from accumulating at the edge of the vibrating screen 2, and on the other hand, it eliminates the need for frequent manual cleaning of the masterbatch at the edge, greatly reducing labor intensity.
[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A vibrating sieving device for masterbatch in shrink film production, characterized in that: it includes a support frame, a vibrating screen mounted on the top of the support frame, and a vibrating motor mounted on the bottom of the vibrating screen; the vibrating screen is inclined; the vibrating screen includes a microparticle screen plate, a transition screen plate, and a coarse particle screen plate connected in sequence; the microparticle screen plate has a screening zone and a sliding zone located on both sides of the screening zone; a plurality of micropores are opened in the screening zone; a baffle is protruding on the side of the sliding zone away from the screening zone; a plurality of guide plates are fixedly connected to the baffle on the sliding zone; the guide plates are inclined along the line extending from the microparticle screen plate to the transition screen plate.
2. The masterbatch vibrating sieving device for shrink film production as described in claim 1, characterized in that: the guide plate and the microparticle sieve plate are arranged perpendicular to each other.
3. The shrink film production masterbatch vibrating screening device as described in claim 2, characterized in that: multiple guide plates are provided in each of the sliding zones on each side, and the multiple guide plates are arranged at equal intervals.
4. The masterbatch vibrating screening device for shrink film production as described in claim 3, characterized in that: the plurality of guide plates located on the same side are arranged in parallel to each other.
5. The masterbatch vibrating sieve device for shrink film production as described in claim 1, characterized in that: the baffle extends along the length direction of the microparticle sieve plate, and the included angle between the guide plate and the baffle is α, 20°≤α≤40°.
6. The masterbatch vibrating screening device for shrink film production as described in claim 5, characterized in that: the included angle α between the guide plate and the baffle plate is 30°.
7. The masterbatch vibrating screening device for shrink film production as described in claim 1, characterized in that: the support frame includes a fixed frame and a plurality of support columns fixedly connected to the bottom of the fixed frame, and the vibrating screen is fixedly installed on the fixed frame.
8. The masterbatch vibrating screening device for shrink film production as described in claim 7, characterized in that: the bottom of the vibrating screen corresponding to the sliding zone is fixedly connected to the fixed frame.
9. The masterbatch vibrating screening device for shrink film production as described in claim 8, characterized in that: the vibrating screen and the fixed frame are fixedly connected by bolts, the number of bolts is the same as the number of guide plates, one bolt is correspondingly set to one guide plate, the bolt is located on the side of the corresponding guide plate close to the transition screen plate, and the bolt is set at the corner where the guide plate and the baffle are connected.
10. The masterbatch vibrating sieving device for shrink film production as described in claim 7, characterized in that: a reinforcing plate is fixedly installed on the lower surface of the microparticle sieve plate along its own length direction, the reinforcing plate is arranged along the symmetrical axis of the microparticle sieve plate, the vibrating motor is fixedly installed on the reinforcing plate, and both ends of the reinforcing plate are fixedly connected to the fixed frame on the support frame.