Cooling and filtering device for plastic particle production
By designing a cooling and filtration device for plastic granule production, a rotating shaft drives the scraper and spiral block to rotate, solving the problems of untimely cooling and unfiltered granules, achieving sufficient cooling and filtration of plastic granules, and improving the quality of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-07
AI Technical Summary
In existing plastic pellet production equipment, untimely cooling leads to pellet adhesion and failure to effectively filter small particles, affecting the quality of the finished product.
Design a cooling and filtering device for plastic granule production, comprising a cooling component and a filtering component. A rotating shaft drives a scraper and a spiral block to rotate. The scraper scrapes the granules into the feed pipe, a cooling fan provides secondary heat dissipation, and the spiral block filters small granules, ensuring sufficient cooling and filtration.
This process achieves sufficient cooling and effective filtration of plastic granules, preventing adhesion, improving finished product quality, and ensuring that the volume meets specifications.
Smart Images

Figure CN224089384U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, specifically a cooling and filtering device for producing plastic granules. Background Technology
[0002] Plastic granules are the basic raw material for manufacturing various plastic products. They are usually made from petroleum-derived resins and come in the form of small beads or granules. They are lightweight, corrosion-resistant, and easy to mold, and are widely used in packaging, construction, electronics, automotive and other industries. Through different additives and processing, their hardness, flexibility, transparency and other properties can be adjusted to meet diverse product requirements. In the field of plastic heat treatment for plastic granule production, water cooling is commonly used. Most of the time, water tanks are used to cool the plastic granules. After the plastic granules are cooled, they are either removed or the water is drained, leaving the plastic granules. However, if the cooling is not timely, the plastic granules are prone to sticking together. Moreover, existing equipment does not filter the plastic granules after production, resulting in small particles from the cutting process being mixed in with the plastic granules. When the cooling temperature is insufficient, small particles are prone to adhering to the surface of the plastic granules, resulting in poor quality finished plastic granules. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a cooling and filtering device for plastic granule production. Through the setting of the cooling component, after water cooling, the rotating shaft drives the scraper to rotate, which can not only scrape the granules into the feed pipe, but also drive the plastic granules to rotate to avoid some plastic granules sticking together. When filtering plastic granules, the cooling fan can dissipate heat on the plastic granules for a second time, so that the plastic granules are fully cooled. Through the setting of the filtering component, the rotating shaft drives the spiral block to rotate, and the small and substandard plastic granules will fall from the gaps in the screen into the spiral collection cylinder and finally be discharged from the discharge pipe.
[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0005] A cooling and filtering device for producing plastic granules includes: a cooling cylinder with a cooling box fixedly installed on the top of the cooling cylinder; a cooling assembly disposed inside the cooling cylinder and the cooling box, the cooling assembly including: a scraper, a feed pipe and a cooling fan; and a filtering assembly disposed inside the cooling cylinder, the filtering assembly including: a spiral block, a screen, a spiral collecting cylinder and a discharge pipe.
[0006] Preferably, a partition is fixedly installed at the bottom of the cooling cylinder, a motor is fixedly installed at the bottom of the partition, a rotating shaft is driven and connected to the top of the motor, the rotating shaft passes through the top of the cooling cylinder and the bottom of the cooling box, and extends into the interior of the cooling box.
[0007] Preferably, a scraper is fixedly installed on the top outer surface of the rotating shaft, a feed pipe is fixedly installed on the top of the cooling cylinder and the bottom of the cooling box, a sealing plug is provided inside the feed pipe, a connecting rod is fixedly installed on the top of the sealing plug, and a drain pipe is fixedly connected to one side of the cooling box.
[0008] Preferably, a spiral block is fixedly installed on the outer surface of the rotating shaft, a screen is fixedly installed inside the spiral block, a spiral collecting cylinder is fixedly installed at the bottom of the spiral block, a discharge pipe is fixedly installed at the bottom of the spiral collecting cylinder, and a threaded plug is threadedly connected inside the discharge pipe.
[0009] Preferably, a fixed cylinder is fixedly installed inside the cooling cylinder, a discharge cylinder is fixedly installed on one side of the bottom of the fixed cylinder, the discharge cylinder passes through the cooling cylinder, and a barrier net is fixedly installed on the outside of the fixed cylinder.
[0010] Preferably, a slot is provided on the outer side of the bottom of the fixed cylinder, a sealing block is provided inside the slot, two threaded holes a are provided inside the sealing block, two threaded holes b are provided on the outer side of the fixed cylinder, and bolts are threadedly connected inside the threaded holes a and threaded holes b.
[0011] Preferably, a plurality of support plates are fixedly installed on one side inside the cooling cylinder, a cooling fan is fixedly installed on the top of the support plate, ventilation meshes are fixedly installed on both sides of the cooling cylinder, and a sealing door is rotatably connected to one side of the cooling cylinder.
[0012] The beneficial effects of this utility model are:
[0013] The advantage of this utility model is that, through the setting of the cooling component, after water cooling, the rotating shaft carrying the scraper can not only scrape the particles into the feed pipe, but also drive the plastic particles to rotate to avoid some plastic particles sticking together. When filtering plastic particles, the cooling fan can dissipate heat on the plastic particles a second time, so that the plastic particles are fully cooled.
[0014] Secondly, through the setting of the filter components, the rotating shaft drives the spiral block to rotate, and small, substandard plastic particles will fall from the gaps in the screen into the spiral collection cylinder, and finally be discharged from the discharge pipe. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the image.
[0018] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the image.
[0019] Figure 5 This is a cross-sectional view of the spiral collecting cylinder of this utility model.
[0020] Figures 1-5 In the middle: 1. Cooling cylinder; 101. Baffle plate; 102. Motor; 103. Rotating shaft; 2. Cooling box; 201. Scraper; 202. Feed pipe; 203. Sealing plug; 204. Connecting rod; 205. Drain pipe; 3. Spiral block; 301. Screen; 302. Spiral collecting cylinder; 303. Discharge pipe; 304. Threaded plug; 4. Fixed cylinder; 401. Discharge cylinder; 402. Barrier mesh; 403. Slotted; 404. Sealing block; 405. Threaded hole a; 406. Threaded hole b; 5. Support plate; 501. Cooling fan; 502. Ventilation mesh; 503. Sealing door. Detailed Implementation
[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0022] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0023] like Figures 1-5 As shown, a cooling and filtering device for producing plastic granules includes: a cooling cylinder 1, with a cooling box 2 fixedly installed on the top of the cooling cylinder 1; a cooling assembly disposed inside the cooling cylinder 1 and the cooling box 2, the cooling assembly including: a scraper 201, a feed pipe 202 and a cooling fan 501; and a filtering assembly disposed inside the cooling cylinder 1, the filtering assembly including: a spiral block 3, a screen 301, a spiral collecting cylinder 302 and a discharge pipe 303.
[0024] In this system, the cooling components, after water cooling, allow the rotating shaft 103 to rotate, carrying the scraper 201. This not only scrapes the particles into the feed pipe 202 but also rotates the plastic particles to prevent some from sticking together. During filtration, the cooling fan 501 provides secondary cooling to the plastic particles, ensuring they are fully cooled. The rotating shaft 103 also drives the spiral block 3 to rotate, causing smaller, substandard plastic particles to fall through the gaps in the screen 301 into the spiral collection cylinder 302, and finally discharge from the discharge pipe 303.
[0025] The cooling cylinder 1 has a partition 101 fixedly installed at the bottom. A motor 102 is fixedly installed at the bottom of the partition 101. A rotating shaft 103 is connected to the top of the motor 102. The rotating shaft 103 passes through the top of the cooling cylinder 1 and the bottom of the cooling box 2 and extends into the interior of the cooling box 2. A scraper 201 is fixedly installed on the top outer surface of the rotating shaft 103. A feed pipe 202 is fixedly installed at the top of the cooling cylinder 1 and the bottom of the cooling box 2. A sealing plug 203 is provided inside the feed pipe 202. A connecting rod 204 is fixedly installed on the top of the sealing plug 203. A drain pipe 205 is fixedly connected to one side of the cooling box 2.
[0026] When the plastic granules need to be cooled after being cut, they are poured into a cooling tank 2 filled with cooling water for cooling. After the first cooling, the cooling water is discharged through the drain pipe 205. Then, the connecting rod 204 is pulled upwards, and the connecting rod 204 drives the sealing plug 203 to be pulled out from the feed pipe 202, so that the plastic granules fall from the feed pipe 202 into the fixed cylinder 4. The motor 102 drives the rotating shaft 103 to rotate, so that the rotating shaft 103 drives the scraper 201 to rotate. The scraper 201 can accelerate the plastic granules from the feed pipe 202 into the fixed cylinder 4 and can agitate the plastic granules to prevent the plastic granules that are not completely cooled from sticking together.
[0027] Among them, a spiral block 3 is fixedly installed on the outer surface of the rotating shaft 103, a screen 301 is fixedly installed inside the spiral block 3, a spiral collecting cylinder 302 is fixedly installed at the bottom of the spiral block 3, a discharge pipe 303 is fixedly installed at the bottom of the spiral collecting cylinder 302, a threaded plug 304 is threadedly connected inside the discharge pipe 303, a fixed cylinder 4 is fixedly installed inside the cooling cylinder 1, a discharge cylinder 401 is fixedly installed on one side of the bottom of the fixed cylinder 4, the discharge cylinder 401 penetrates the cooling cylinder 1, a barrier net 402 is fixedly installed on the outside of the fixed cylinder 4, a slot 403 is opened on the outside of the bottom of the fixed cylinder 4, a sealing block 404 is set inside the slot 403, two threaded holes a405 are opened inside the sealing block 404, two threaded holes b406 are opened on the outside of the fixed cylinder 4, and bolts are threadedly connected inside the threaded holes a405 and the threaded holes b406.
[0028] When the rotating shaft 103 rotates, it drives the spiral block 3, screen 301, and spiral collecting cylinder 302 to rotate. At the same time, it causes the plastic particles to roll continuously downwards. When the plastic particles roll on the surface of the screen 301, the smaller, substandard plastic particles will fall from the gaps in the screen 301 into the spiral collecting cylinder 302. Finally, the plastic particles are discharged from the discharge cylinder 401. Filtering smaller plastic particles can improve the overall quality of the plastic particles and ensure that their size is not too small to be processed. After filtering, rotate the sealing door 503, rotate and remove the bolts in the threaded holes a405 and b406, and remove the sealing block 404 so that the worker can reach into the fixed cylinder 4. Insert a large-diameter flexible tube into the fixed cylinder 4 through the slot 403 and align the flexible tube with the bottom of the discharge pipe 303. Rotate the threaded plug 304 so that the small plastic particles in the spiral collecting cylinder 302 are discharged from the flexible tube.
[0029] The cooling cylinder 1 has multiple support plates 5 fixedly installed on one side inside, a cooling fan 501 fixedly installed on the top of the support plate 5, ventilation nets 502 fixedly installed on both sides of the cooling cylinder 1, and a sealing door 503 rotatably connected to one side of the cooling cylinder 1.
[0030] As the plastic granules rotate downwards with the spiral block 3, the cooling fan 501 rotates to blow air into the fixed cylinder 4. The flowing air dissipates heat from the plastic granules through the ventilation net 502 and the barrier net 402. This not only dries the moisture on the surface of the plastic granules but also provides secondary cooling. Finally, the air carrying heat and moisture is discharged from the barrier net 402 and the ventilation net 502 on the other side, thus achieving the effect of completely cooling the plastic granules.
[0031] Working principle:
[0032] When the cut plastic granules need to be cooled, they are poured into a cooling tank 2 filled with cooling water for cooling. After the first cooling, the cooling water is discharged through the drain pipe 205. Then, the connecting rod 204 is pulled upwards, causing the sealing plug 203 to be pulled out from the feed pipe 202, allowing the plastic granules to fall from the feed pipe 202 into the fixed cylinder 4. The motor 102 drives the rotating shaft 103 to rotate, which in turn drives the scraper 201 to rotate. The scraper 201 accelerates the cutting of the plastic granules. The plastic granules enter the fixed cylinder 4 through the feed pipe 202, which agitates them and prevents incompletely cooled granules from sticking together. When the rotating shaft 103 rotates, it drives the spiral block 3, screen 301, and spiral collecting cylinder 302 to rotate, causing the plastic granules to continuously roll downwards. As the granules roll on the surface of the screen 301, smaller, substandard granules fall through the gaps in the screen 301 into the spiral collecting cylinder 302. Finally, the plastic granules are discharged from the discharge cylinder 401. Filtering smaller plastic particles improves the overall quality of the plastic particles, ensuring that their size is not too small to be processed. As the plastic particles rotate downwards with the spiral block 3, the cooling fan 501 rotates to blow air into the fixed cylinder 4. The flowing air dissipates heat from the ventilation net 502 through the barrier net 402, not only drying the moisture on the surface of the plastic particles but also providing secondary cooling. Finally, the air carrying heat and moisture is discharged from the barrier net 402 and ventilation net 502 on the other side, thus achieving the effect of completely cooling the plastic particles. After filtration, rotate the sealing door 503 to remove the bolts in the threaded holes a405 and b406, and remove the sealing block 404, allowing the worker to reach into the fixed cylinder 4. Insert a large-diameter flexible hose into the fixed cylinder 4 through the slot 403, aligning the hose with the bottom of the discharge pipe 303. Rotate the threaded plug 304 to discharge the small plastic particles in the spiral collection cylinder 302 from the hose.
[0033] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0034] The above provides a detailed description of a cooling and filtering device for plastic pellet production provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A cooling and filtering device for producing plastic granules, characterized in that, include: Cooling cylinder (1), and a cooling box (2) is fixedly installed on the top of the cooling cylinder (1); The cooling components are disposed inside the cooling cylinder (1) and the cooling box (2), and the cooling components include: scraper (201), feed pipe (202) and cooling fan (501). The filter assembly disposed inside the cooling cylinder (1) includes: a spiral block (3), a screen (301), a spiral collecting cylinder (302), and a discharge pipe (303).
2. The cooling and filtering device for producing plastic granules according to claim 1, characterized in that, A partition (101) is fixedly installed at the bottom of the cooling cylinder (1). A motor (102) is fixedly installed at the bottom of the partition (101). A rotating shaft (103) is connected to the top of the motor (102). The rotating shaft (103) passes through the top of the cooling cylinder (1) and the bottom of the cooling box (2) and extends into the interior of the cooling box (2).
3. The cooling and filtering device for producing plastic granules according to claim 2, characterized in that, A scraper (201) is fixedly installed on the top outer surface of the rotating shaft (103). A feed pipe (202) is fixedly installed on the top of the cooling cylinder (1) and the bottom of the cooling box (2). A sealing plug (203) is provided inside the feed pipe (202). A connecting rod (204) is fixedly installed on the top of the sealing plug (203). A drain pipe (205) is fixedly connected to one side of the cooling box (2).
4. The cooling and filtering device for producing plastic granules according to claim 2, characterized in that, A spiral block (3) is fixedly installed on the outer surface of the rotating shaft (103). A screen (301) is fixedly installed inside the spiral block (3). A spiral collecting cylinder (302) is fixedly installed at the bottom of the spiral block (3). A discharge pipe (303) is fixedly installed at the bottom of the spiral collecting cylinder (302). A threaded plug (304) is threadedly connected inside the discharge pipe (303).
5. The cooling and filtering device for producing plastic granules according to claim 1, characterized in that, A fixed cylinder (4) is fixedly installed inside the cooling cylinder (1). A discharge cylinder (401) is fixedly installed on one side of the bottom of the fixed cylinder (4). The discharge cylinder (401) passes through the cooling cylinder (1). A barrier net (402) is fixedly installed on the outside of the fixed cylinder (4).
6. The cooling and filtering device for producing plastic granules according to claim 5, characterized in that, The bottom outer side of the fixed cylinder (4) is provided with a slot (403), and a sealing block (404) is provided inside the slot (403). The sealing block (404) has two threaded holes a (405) inside, and two threaded holes b (406) are provided on the outer side of the fixed cylinder (4). Bolts are threadedly connected inside the threaded holes a (405) and threaded holes b (406).
7. The cooling and filtering device for producing plastic granules according to claim 1, characterized in that, Multiple support plates (5) are fixedly installed on one side inside the cooling cylinder (1). A cooling fan (501) is fixedly installed on the top of the support plate (5). Ventilation nets (502) are fixedly installed on both sides of the cooling cylinder (1). A sealing door (503) is rotatably connected to one side of the cooling cylinder (1).