Strip-shaped plastic cooling and air-drying device

Abstract

The utility model relates to a strip-shaped plastic cooling and air-drying device which comprises a supporting frame and a cooling tank arranged on the supporting frame, the bottom of the cooling tank is provided with a downwards-concave water flowing tank, the water flowing tank is obliquely and downwards arranged, a pressing roller is arranged in the water flowing tank and can press extruded plastic strips into the water flowing tank, and a water flowing pipe is arranged at the upper end of the water flowing tank; a circulating water pump is arranged at the lower end of the water flowing groove and connected with the water flowing pipe, a guide-in roller and a guide-out roller are arranged on the upper portions of the two ends of the cooling groove respectively, a draught fan is arranged on the side face of the guide-out roller, an arc-shaped air guide plate is arranged below the draught fan, and the arc-shaped air guide plate is located below the plastic strips and obliquely faces the guide-out roller. By arranging the inclined water flowing grooves, the plastic strips can be continuously flushed and cooled, the cooling efficiency is high, meanwhile, a small amount of water is needed, cooling water can be recycled in cooperation with the circulating water pump, the water saving effect is good, the arc-shaped air guide plates can guide the air direction, and the air drying effect is improved.

Description

A strip-shaped plastic cooling and drying device Technical Field

[0001] This application relates to the field of plastic granule technology, and in particular to a strip-shaped plastic cooling and drying device. Background Technology

[0002] Plastic pellets, also known as plastic granules, are raw materials for storing, transporting, and processing plastics in a semi-finished form. The production process of plastic pellets mainly includes: pretreatment, extrusion molding, cooling and solidification, granulation and vibration, and sorting. First, solid plastic needs to be processed into molten plastic of the required shape by heating and pressurizing, and then extruded through an extruder head. At this time, the molten plastic is generally in the form of strips. After passing through a cooling tank and air drying device, the strip plastic stabilizes its shape. Finally, it undergoes pelletizing and sorting processes to complete the production of plastic pellets.

[0003] The production of plastic granules involves multiple processes and requires the use of various equipment. After the plastic filaments extruded by the extruder are cooled and shaped in a water tank, their surface is covered with water stains. To meet the needs of subsequent processes such as pelletizing, they need to be dried. Currently, the commonly used method is air drying. For example, Chinese Patent No. CN215638476U, published on January 25, 2022, discloses an air drying device installed at the end of a water tank for soaking plastic filaments, in the field of plastic filament production equipment. The system includes a base plate, a support plate, a fan, a water tank, and an air plate. A base is welded to the upper side wall of the base plate. The top side wall of the support rod is fixedly connected to the bottom side wall of the support plate by bolts. The upper side wall of the base plate next to the base is fixedly connected to the support leg by fixing bolts. The base plate is fixedly connected to the fan by the support leg. An air cover is installed at the end of the telescopic pipe. A water tank is embedded in one side wall of the support plate, and an air plate is embedded in the other side wall of the support plate. The support plate has a support groove inside. A wire inlet groove is opened on the left side wall of the support plate, a wire outlet groove is opened on the right side wall of the support plate, an air groove is opened on the rear side wall of the support groove, and a water groove is opened on the front side wall of the support groove. A rotating rod is inserted inside the support plate, and a roller is sleeved on the rotating rod.

[0004] The above-mentioned system incorporates a water tank, a water storage tank, and a flow guide. During use, the water tank and the flow guide are interconnected, allowing water falling from the plastic filaments to flow directly into the water storage tank for storage. The bottom of the flow guide is designed with an inclined structure, which also prevents water accumulation. Simultaneously, through a fan, an air inlet pipe, an air plate, and an air trough, the fan's air inlet is connected to the connecting plate via the air inlet pipe, and the connecting plate is then engaged with the air trough on the carrying plate via the air plate. This allows the airflow in the carrying plate to flow back into the fan, accelerating fan cooling and improving drying efficiency.

[0005] Regarding the aforementioned technologies, the inventors believe that although the application can blow away water stains on the plastic strip with a fan, the plastic strip is thin and has a small air-receiving area. Furthermore, since the plastic strip in this application is placed on a roller, the water stains may be blown to the bottom of the plastic strip, making it impossible to dry completely and affecting the performance. Summary of the Invention

[0006] This application provides a strip-shaped plastic cooling and drying device, which has the advantages of high drying efficiency and convenient use.

[0007] The strip-shaped plastic cooling and drying device provided in this application adopts the following technical solution:

[0008] A strip-shaped plastic cooling and drying device includes a support frame and a cooling trough mounted on the support frame. The bottom of the cooling trough has a recessed water channel that is inclined downwards. A pressure roller is installed inside the water channel to press the extruded plastic strip into the water channel. A water pipe is installed at the upper end of the water channel, and a circulating water pump is installed at the lower end of the water channel and connected to the water pipe. An inlet roller and an outlet roller are respectively installed at the upper ends of the cooling trough. A fan is installed on the side of the outlet roller, and an arc-shaped air guide plate is installed below the fan. The arc-shaped air guide plate is located below the plastic strip and is inclined towards the outlet roller.

[0009] Preferably, the cooling tank is inclined, the inclination direction of the water flow channel is the same as that of the cooling tank, and the inclination angle of the water flow channel is greater than that of the cooling tank.

[0010] Preferably, there are multiple pressure rollers arranged along the length of the bottom of the water trough, and each pressure roller has an annular groove in the circumferential direction. The two ends of the central rod of the pressure roller are movably connected to the inner side of the water trough.

[0011] Preferably, the inner side of the water trough is provided with an "L"-shaped fixing groove, and the bending direction of the fixing groove is set towards the upper end of the water trough.

[0012] Preferably, the air outlet of the fan is inclined toward the outlet roller, and the arc-shaped air guide plate is a curved plate with one end larger than the other, with the smaller end of the arc-shaped air guide plate facing toward the outlet roller.

[0013] Preferably, a filter screen is provided on the inner side of the lower end of the water trough, and support plates are bent on both sides of the filter screen. The ends of the support plates are connected to the inner side of the lower end of the water trough, and the bottom of the filter screen is connected to the bottom of the water trough.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. This application features a cooling tank with a recessed water trough within it, designed at an angle. Combined with pressure rollers within the trough, the plastic strip is pressed down, and a water pipe at the top of the trough continuously cools it with water. This results in high cooling efficiency with low water consumption. Furthermore, a circulating water pump at the bottom of the trough ensures continuous use of cooling water, leading to water conservation. A fan is installed on the cooling tank, with an arc-shaped air guide plate below it. This guide plate directs airflow over a large area, effectively removing water stains from the plastic strip and improving drying efficiency. The application is also convenient to use.

[0016] 2. By setting the cooling trough to be inclined, and making the inclination angle of the water trough greater than that of the cooling trough, it is convenient for water to enter the water trough, ensuring the cooling of the plastic strip; by setting multiple pressure rollers and setting annular grooves on the pressure rollers, the stable conveying of the plastic strip is ensured; by setting fixing slots in the water trough, it is convenient to install and replace the pressure rollers, and at the same time, the bending direction of the fixing slots is set towards the upper end of the water trough to prevent the pressure rollers from loosening due to the movement of the plastic strip, thus ensuring the fixing effect of the pressure rollers.

[0017] 3. By setting an arc-shaped air guide plate at an angle, with the smaller end of the arc-shaped air guide plate facing the outlet roller, the air blown out by the fan can be guided in a certain direction, achieving large-area air blowing and improving the drying effect.

[0018] 4. By installing a filter screen at the lower end of the water trough, impurities can be filtered out, ensuring the circulation of cooling water. Support plates are installed by bending them on both sides of the filter screen, and the support plates are connected to the ends and bottom of the water trough for easy installation. Attached Figure Description

[0019] Figure 1 is a perspective view of a cooling and drying apparatus for producing plastic pellets in a preferred embodiment of this application.

[0020] Figure 2 is a perspective view of the cooling and drying apparatus for producing plastic pellets in a preferred embodiment of this application from another angle.

[0021] Figure 3 is a front view of a cooling and drying apparatus for producing plastic pellets in a preferred embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Cooling tank; 201. Water trough; 201a. Fixing slot; 202. Pressure roller; 203. Water pipe; 204. Circulating water pump; 205. Filter screen; 3. Inlet roller; 4. Outlet roller; 5. Fan; 6. Arc-shaped air guide plate; 7. Plastic strip. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] This application discloses a strip-shaped plastic cooling and drying device.

[0025] Referring to Figures 1 to 3, a strip-shaped plastic cooling and drying device includes a support frame 1 and a cooling trough 2 disposed on the support frame 1. The bottom of the cooling trough 2 has a recessed water channel 201, which is inclined downwards. Specifically, in this embodiment, the cooling trough 2 is inclined, and the inclination direction of the water channel 201 is the same as that of the cooling trough 2, but the inclination angle of the water channel 201 is greater than that of the cooling trough 2. A pressure roller 202 is disposed within the water channel 201. 2. Multiple pressure rollers 202 are arranged along the length of the bottom of the water trough 201. Each pressure roller 202 has an annular groove in the circumferential direction. The two ends of the central rod of the pressure roller 202 are movably connected to the inner side of the water trough 201. Specifically, the inner side of the water trough 201 is provided with an "L"-shaped fixing groove 201a. The bending direction of the fixing groove 201a is set towards the upper end of the water trough 201, which can prevent the pressure roller 202 from loosening during the movement of the plastic strip 7 and ensure the stable guidance of the plastic strip 7.

[0026] Referring to Figures 1 to 3, the pressure roller 202 can press the extruded plastic strip 7 into the water trough 201. The upper end of the water trough 201 is provided with a water pipe 203, and the lower end of the water trough 201 is provided with a circulating water pump 204, which is connected to the water pipe 203. The lower inner side of the water trough 201 is provided with a filter screen plate 205. The two sides of the filter screen plate 205 are bent and provided with support plates. The ends of the support plates are connected to the lower inner side of the water trough 201, and the bottom of the filter screen plate 205 is connected to the bottom of the water trough 201.

[0027] Referring to Figures 1 and 2, the upper parts of both ends of the cooling tank 2 are respectively provided with an inlet roller 3 and an outlet roller 4. A fan 5 is provided on the side of the outlet roller 4, and an arc-shaped air guide plate 6 is provided below the fan 5. The arc-shaped air guide plate 6 is located below the plastic strip 7 and is inclined towards the outlet roller 4. The air outlet of the fan 5 is inclined towards the outlet roller 4. The arc-shaped air guide plate 6 is a curved plate with one end larger than the other. The smaller end of the arc-shaped air guide plate 6 is set towards the outlet roller 4, which can guide the air direction, realize large-area air blowing, effectively blow away water stains on the plastic strip 7, improve the drying effect, and is easy to use.

[0028] The implementation principle is as follows: This application sets up a cooling tank 2 with a recessed water trough 201 inside. The water trough 201 is inclined, and combined with the pressure roller 202 inside the water trough 201, it can press down the plastic strip 7. The water pipe 203 at the upper end of the water trough 201 continuously irrigates and cools the plastic strip 7, resulting in high cooling efficiency and low water consumption. Combined with the circulating water pump 204 at the lower end of the water trough 201, the cooling water can be used continuously, resulting in good water conservation. By setting up a fan 5 on the cooling tank 2 and an arc-shaped air guide plate 6 below the fan 5, the arc-shaped air guide plate 6 can guide the airflow and achieve large-area air blowing, which can effectively blow away water stains on the plastic strip 7, improve the drying effect, and is convenient to use.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A strip plastic cooling and drying apparatus, characterized by: Includes a support frame (1) and a cooling trough (2) disposed on the support frame (1). The bottom of the cooling trough (2) is provided with a recessed water channel (201) which is inclined downward. A pressure roller (202) is disposed inside the water channel (201). The pressure roller (202) can press the extruded plastic strip (7) into the water channel (201). A water pipe (203) is disposed at the upper end of the water channel (201). A circulating water pump (204) is provided at the lower end of 01) and the circulating water pump (204) is connected to the water pipe (203). An inlet roller (3) and an outlet roller (4) are respectively provided at the upper part of both ends of the cooling tank (2). A fan (5) is provided on the side of the outlet roller (4). An arc-shaped air guide plate (6) is provided below the fan (5). The arc-shaped air guide plate (6) is located below the plastic strip (7) and is inclined towards the outlet roller (4).

2. A strip plastic cooling and drying device according to claim 1, characterized in that: The cooling tank (2) is inclined, and the inclination direction of the water flow tank (201) is the same as that of the cooling tank (2), and the inclination angle of the water flow tank (201) is greater than that of the cooling tank (2).

3. The strip-shaped plastic cooling and drying device according to claim 1, characterized in that: The pressure rollers (202) are multiple and arranged along the length of the bottom of the water trough (201). The pressure rollers (202) are provided with annular grooves in the circumferential direction. The two ends of the central rod of the pressure rollers (202) are movably connected to the inner side of the water trough (201).

4. A strip plastic cooling and drying device according to claim 3, characterised in that: The inner side of the water trough (201) is provided with an "L"-shaped fixing slot (201a), and the bending direction of the fixing slot (201a) is set towards the upper end of the water trough (201).

5. A strip plastic cooling and drying device as claimed in claim 1, characterized in that: The air outlet of the fan (5) is tilted toward the guide roller (4), and the arc-shaped guide plate (6) is a curved plate with one end larger than the other, with the smaller end of the arc-shaped guide plate (6) facing toward the guide roller (4).

6. A strip plastic cooling and drying device as claimed in claim 1, characterized in that: A filter screen plate (205) is provided on the inner side of the lower end of the water tank (201). Support plates are bent on both sides of the filter screen plate (205). The ends of the support plates are connected to the inner side of the lower end of the water tank (201), and the bottom of the filter screen plate (205) is connected to the bottom of the water tank (201).

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