A plastic strip cooling and drying device for color master batch production
By employing an ice-water tank circulating pump system, an S-shaped path, and a drying chamber design, the problems of low cooling efficiency and moisture residue in masterbatch production have been solved, achieving efficient and uniform cooling and drying of plastic strips, thereby improving production efficiency and product quality.
Patent Information
- Application Number
- CN202521344901.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-06-30
AI Technical Summary
Traditional cooling devices suffer from low cooling efficiency, uneven temperature, excessive moisture residue, and incomplete drying in masterbatch production. In particular, it is difficult to efficiently remove moisture from the surface of plastic strips, which affects product quality and production efficiency.
The system uses an ice water tank and a circulating pump to provide low-temperature ice water cooling. Combined with an S-shaped cooling pool and a wiping roller to remove surface moisture, the drying chamber is equipped with an S-shaped path and uniform airflow for drying. The top dehumidification system quickly removes moisture, and the circulation pipe is equipped with a control valve to adjust the cooling intensity.
It achieves efficient and uniform cooling and thorough drying of plastic strips, improving production efficiency and product quality, reducing manual intervention, and featuring a compact structure and high degree of automation.
Smart Images

Figure CN224408425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a cooling and drying device for plastic strips used in the production of color masterbatch. Background Technology
[0002] In the production of color masterbatch, the melt-extruded plastic strips need to be rapidly cooled, shaped, and thoroughly dried to avoid sticking, deformation, or affecting the quality of subsequent pelletizing. Traditional cooling devices often suffer from problems such as low cooling efficiency, uneven temperature, excessive moisture residue, and incomplete drying. In particular, the moisture carried on the surface of the plastic strips is difficult to remove efficiently, affecting product quality and production efficiency. Utility Model Content
[0003] (1) Technical solution
[0004] To solve the above-mentioned technical problems, this utility model provides a cooling and drying device for plastic strips used in masterbatch production, including a cooling pool, an ice water tank, a circulation pipe, a circulation pump, guide rollers, a first guide roller, a wiping roller, a drying box, a second guide roller, an air outlet plate, an air inlet pipe, and a fan. One side of the cooling pool is connected to the ice water tank via the circulation pipe, and the circulation pipe is also equipped with the circulation pump. A cooling inlet is located on one side of the upper part of the cooling pool, and a cooling outlet is located on the other side of the upper part of the cooling pool. A pair of guide rollers are installed in the cooling pool near the cooling inlet, and a fan is installed in the cooling pool near the cooling outlet. The cooling tank is equipped with a pair of drying rollers, each covered with a sponge sleeve for wiping the surface of the plastic strip. Several first guide rollers are installed horizontally and vertically in a staggered manner from the cooling inlet to the cooling outlet. A drying box is located on the other side of the cooling tank. A drying inlet is located on one side of the upper part of the drying box, and a drying outlet is located on the other side of the lower part of the drying box. Several second guide rollers are installed horizontally and vertically in a staggered manner from top to bottom inside the drying box. Air outlet plates are provided on both inner walls of the drying box. One side of the air outlet plate is connected to the fan through the air inlet pipe. A dehumidification port is located at the top of the drying box.
[0005] Preferably, the circulation pipe is equipped with a control valve.
[0006] Preferably, a plurality of air distribution holes are evenly provided on the side of the two air outlet plates that are close to each other.
[0007] Preferably, the vent is provided with two layers of venting mesh.
[0008] Preferably, a dehumidifying fan is installed between the two layers of dehumidifying mesh, and the dehumidifying fan is driven to rotate by a motor.
[0009] (2) Beneficial effects
[0010] This invention provides a plastic strip cooling and drying device for color masterbatch production. Compared with the prior art, this invention has the following advantages:
[0011] (1) High-efficiency cooling: The ice water tank and circulating pump provide continuous low-temperature ice water, combined with the S-shaped guide path in the cooling pool, to ensure that the plastic strip is fully, evenly and quickly cooled.
[0012] (2) Preliminary water removal: A drying roller with a sponge sleeve is installed at the water outlet of the plastic strip to effectively remove most of the surface water and reduce the burden of subsequent drying.
[0013] (3) Deep and uniform drying: The drying chamber is equipped with an S-shaped path to extend the drying time, and the air outlet plates with air distribution holes on both sides provide a uniform and stable airflow to ensure that the trace moisture on the surface of the plastic strip is completely blown away.
[0014] (4) High-efficiency dehumidification: The top dehumidification port, combined with a double-layer dehumidification net and an active dehumidification fan, quickly removes moisture, maintains a dry environment inside the drying chamber, and prevents moisture from condensing again.
[0015] (5) Flexible adjustment: The control valve on the circulation pipe is easy to adjust the cooling intensity to meet different production needs.
[0016] (6) Compact structure and high degree of automation: The device integrates cooling, wiping and drying, operates smoothly, reduces manual intervention, and improves production efficiency and product quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of the air outlet plate of this utility model.
[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle.
[0020] The attached diagram is labeled as follows: 1-Cooling pool, 2-Ice water tank, 3-Circulation pipe, 4-Circulation pump, 5-Control valve, 6-Guide roller, 7-First guide roller, 8-Drying roller, 81-Sponge sleeve, 9-Cooling inlet, 10-Cooling outlet, 11-Drying box, 12-Drying inlet, 13-Drying outlet, 14-Second guide roller, 15-Air outlet plate, 151-Air distribution hole, 16-Air inlet pipe, 17-Fan, 18-Exhaust outlet, 181-Exhaust screen, 19-Exhaust fan, 20-Motor. Detailed Implementation
[0021] The present invention will be further described in conjunction with the accompanying drawings and embodiments.
[0022] like Figures 1-3As shown, the present invention discloses a cooling and drying device for plastic strips used in masterbatch production, comprising a cooling pool 1, an ice water tank 2, a circulation pipe 3, a circulation pump 4, guide rollers 6, a first guide roller 7, a wiping roller 8, a drying box 11, a second guide roller 14, an air outlet 13, an air inlet pipe 16, and a fan 17. One side of the cooling pool 1 is connected to the ice water tank 2 via the circulation pipe 3. The circulation pipe 3 is also equipped with the circulation pump 4. A cooling inlet 9 is located on one side of the upper part of the cooling pool 1, and a cooling outlet 10 is located on the other side of the upper part of the cooling pool 1. A pair of guide rollers 6 are installed in the cooling pool 1 near the cooling inlet 9, and a pair of wiping rollers 8 are installed in the cooling pool 1 near the cooling outlet 10. The drying roller 8 is fitted with a sponge sleeve 81 for wiping the surface moisture of the plastic strip. Several first guide rollers 7 are installed horizontally and vertically in the cooling pool 1 from the cooling inlet 9 to the cooling outlet 10. The drying box 11 is provided on the other side of the cooling pool 1. The drying box 11 has a drying inlet 12 on one side of its upper part and a drying outlet 13 on the other side of its lower part. Several second guide rollers 14 are installed horizontally and vertically in the drying box 11. The air outlet 13 is provided on the inner walls of both sides of the drying box 11. One side of the air outlet 13 is connected to the fan 17 through the air inlet pipe 16. The drying box 11 has a dehumidification port 18 at the top.
[0023] The circulation pipe 3 is equipped with a control valve 5, and a number of air distribution holes 151 are evenly distributed on the side of the two air outlet plates 15 that are close to each other.
[0024] The exhaust port 18 is provided with two layers of exhaust nets 181, and an exhaust fan 19 is installed between the two layers of exhaust nets 181. The exhaust fan 19 is driven to rotate by a motor 20.
[0025] Working principle:
[0026] The plastic strip enters the device through the cooling inlet 9 at the top of the cooling pool 1; a pair of guide rollers 6 guide the plastic strip downward into the cooling water; subsequently, guided by several first guide rollers 7 arranged in an alternating pattern, the plastic strip moves forward in an S-shaped meandering path within the cooling pool 1; during this process, low-temperature ice water (usually 0-10℃) supplied by the ice water tank 2, driven by the circulation pump 4, and continuously injected into the cooling pool 1 through the circulation pipe 3, efficiently cools the plastic strip; the control valve 5 on the circulation pipe 3 can adjust the ice water flow rate to control the cooling intensity.
[0027] After being fully cooled, the plastic strip is moved to the cooling pool 1 near the cooling outlet 10; a pair of high-speed rotating drying rollers 8, with sponge sleeves 81 on their surfaces in close contact with the surface of the plastic strip, wipe away the large amount of water adhering to the plastic strip when it is brought out of the water.
[0028] After being initially dried, the plastic strip leaves the cooling pool 1 through the cooling outlet 10 and immediately enters the drying box 11 through the drying inlet 12 at the top of the drying box 11. Inside the drying box 11, the plastic strip moves downward in an S-shaped path under the guidance of several second guide rollers 14 arranged alternately on the left and right.
[0029] When the fan 17 is started, it generates a dry airflow (usually room temperature air). This airflow is delivered through the air inlet pipe 16 to the air outlet plate 15 installed on the inner walls of both sides of the drying box 11. The airflow is sprayed out from the evenly distributed air distribution holes 151 on the air outlet plate 15, forming a uniform air curtain, which blows from both sides onto the surface of the plastic strip that meanders down inside the box, completely blowing away and evaporating the trace amount of moisture remaining after wiping.
[0030] The moisture generated during the drying process rises to the top of the drying chamber 11. The exhaust fan 19, installed on the top, rotates under the drive of the motor 20, actively drawing in the humid air. The humid air passes through two layers of exhaust mesh 181 (which can be made of materials such as metal wire mesh or non-woven fabric). Dust and other impurities are blocked, while the moisture is efficiently discharged outside the chamber through the exhaust port 18, maintaining low humidity inside the chamber and optimizing the drying environment.
[0031] The embodiments described above are merely preferred embodiments of the present invention, and are described in a relatively specific and detailed manner. However, the present invention is not limited to these embodiments. It should be noted that for those skilled in the art, any improvements made without departing from the spirit of the present invention fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A plastic strip cooling and drying device for color masterbatch production, characterized in that, The system includes a cooling pool (1), an ice water tank (2), a circulation pipe (3), a circulation pump (4), guide rollers (6), a first guide roller (7), a wiping roller (8), a drying box (11), a second guide roller (14), an air outlet plate (15), an air inlet pipe (16), and a fan (17). One side of the cooling pool (1) is connected to the ice water tank (2) through the circulation pipe (3). The circulation pipe (3) is also equipped with the circulation pump (4). The upper side of the cooling pool (1) is provided with a cooling inlet (9), and the other side of the upper part of the cooling pool (1) is provided with a cooling outlet (10). A pair of guide rollers (6) are installed in the cooling pool (1) near the cooling inlet (9), and a pair of wiping rollers (8) are installed in the cooling pool (1) near the cooling outlet (10). A sponge sleeve (81) for wiping the surface moisture of the plastic strip is fitted on the roller (8). Several first guide rollers (7) are installed horizontally and vertically in the cooling pool (1) from the cooling inlet (9) to the cooling outlet (10). The drying box (11) is provided on the other side of the cooling pool (1). The drying box (11) has a drying inlet (12) on one side of the upper part and a drying outlet (13) on the other side of the lower part. Several second guide rollers (14) are installed horizontally and vertically in the drying box (11). The air outlet plate (15) is provided on both sides of the inner wall of the drying box (11). One side of the air outlet plate (15) is connected to the fan (17) through the air inlet pipe (16). The drying box (11) has a dehumidification port (18) at the top.
2. The plastic strip cooling and drying device for masterbatch production according to claim 1, characterized in that, The circulation pipe (3) is equipped with a control valve (5).
3. The plastic strip cooling and drying device for masterbatch production according to claim 1, characterized in that, Several air distribution holes (151) are evenly provided on the side of the two air outlet plates (15) that are close to each other.
4. The plastic strip cooling and drying device for masterbatch production according to claim 1, characterized in that, The vent (18) is equipped with two layers of venting mesh (181).
5. The plastic strip cooling and drying device for masterbatch production according to claim 4, characterized in that, A dehumidifying fan (19) is installed between the two layers of dehumidifying mesh (181), and the dehumidifying fan (19) is driven to rotate by a motor (20).