Drying device for plastic products
By designing a stirring assembly and heating mechanism in the drying device, the plastic products are fully in contact with the hot gas, and the inefficiency problem caused by insufficient hot gas contact in the existing drying device is solved, and a more efficient drying process and lower energy consumption are achieved.
Patent Information
- Application Number
- CN202421960069.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In existing drying devices, the hot gas is not in sufficient contact with the plastic products, resulting in low drying efficiency and increasing energy consumption and equipment wear.
A drying device including a stirring barrel, a heating mechanism and a stirring assembly is designed. The plastic product is repeatedly dispersed and closed in the stirring barrel through the stirring assembly, so that it is in full contact with the hot gas, and through the joint action of the heating box, a fan and a heating pipe, the hot gas is quickly filled with circulating and flowing in the stirring barrel.
It improves the drying efficiency of plastic products, reduces energy consumption and equipment wear, and reduces maintenance costs.
Smart Images
Figure CN223013632U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic product processing, in particular to a drying device for plastic products. Background Technique
[0002] Before processing such as injection molding, extrusion and blow molding, it is necessary to appropriately dry the raw materials to ensure sufficient removal of moisture, guarantee the quality of the final product and the smooth progress of the processing process. The drying process usually uses a hot air dryer or a vacuum dryer to heat the raw materials to a certain temperature and time until the moisture content drops to a safe level. For materials with strong hygroscopicity, the drying temperature and time requirements are more stringent.
[0003] Although the stirring and drying device can effectively process solid particles or powdery materials in industrial production, its thermal efficiency problem cannot be ignored. When the hot air does not contact the plastic products sufficiently, the drying efficiency drops significantly, resulting in an extended residence time of the plastic products in the device, thereby increasing energy consumption. The continuous operation of the stirrer not only consumes a large amount of electricity or fuel to generate the required heat, but also aggravates the wear of the equipment and increases the maintenance cost. Content of the Utility Model
[0004] In order to overcome the disadvantage of low drying efficiency caused by insufficient contact between hot air and plastic products, the purpose of the utility model is to provide a drying device for plastic products that enables sufficient contact between hot air and plastic products.
[0005] A drying device for plastic products includes a mounting frame, a stirring barrel, a feeding frame, a servo motor, a stirring component and a heating mechanism. The stirring barrel is rotatably connected to the top of the mounting frame. The feeding frame is fixedly connected to the right side of the stirring barrel. The feeding frame is communicated with the inside of the stirring barrel. Two heating mechanisms are connected to the top of the stirring barrel. The stirring component is connected to the inside of the stirring barrel. The servo motor is installed on the front side of the mounting frame. The servo motor is connected to the stirring component. The stirring component includes a rotating shaft and stirring propellers. The rotating shaft is rotatably connected to the inside of the stirring barrel. Two stirring propellers are fixedly connected to the outside of the rotating shaft. The two stirring propellers are symmetrically arranged along the axial direction of the rotating shaft.
[0006] In a preferred embodiment of the utility model, the heating mechanism includes a heating box, a fan and a heating pipe. Two heating boxes are fixedly connected to the top of the stirring barrel. The bottoms of the heating boxes are both open. The heating boxes are both communicated with the stirring barrel. Fans are installed on the tops of the heating boxes. Heating pipes are fixedly connected to the inside of the heating boxes.
[0007] In a preferred embodiment of the utility model, a scraping plate is further included. The scraping plate is fixedly connected between the two stirring propellers.
[0008] In a preferred embodiment of the present utility model, it further includes a discharge hopper and a rotating plate. The discharge hopper is fixedly connected to the bottom of the mixing barrel, the discharge hopper is communicated with the mixing barrel, and the rotating plate is rotatably connected inside the discharge hopper.
[0009] In a preferred embodiment of the present utility model, it further includes an air inlet plate. The air inlet plates are fixedly connected to the bottom of the heating box, and at least one small hole is opened on the air inlet plate.
[0010] In a preferred embodiment of the present utility model, it further includes a heat-resistant cloth. The heat-resistant cloth is fixedly connected to the bottom of the air inlet plate.
[0011] Compared with the prior art, the present utility model has the following advantages: Through the mixing assembly, the plastic products can be repeatedly dispersed and gathered in the mixing barrel, so that the plastic products are fully contacted with the hot air, improving the drying efficiency of the plastic products. And a heating box, a fan and a heating pipe are provided. Under the combined action of the fan and the heating pipe, the hot air can be blown into the mixing barrel, making the hot air quickly fill the mixing barrel, further improving the drying efficiency of the plastic products. A heat-resistant cloth is also provided, which can absorb the moisture of the plastic products, facilitating the drying of the plastic products. Description of the Drawings
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0013] Figure 2 It is a sectional view schematic diagram of the mixing barrel of the present utility model.
[0014] Figure 3 It is a structural schematic diagram of the rotating shaft, the mixing screw propeller and the scraping plate of the present utility model.
[0015] Figure 4 It is a sectional view schematic diagram of the heating box of the present utility model.
[0016] Figure 5 It is a structural schematic diagram of the mixing barrel, the discharge hopper and the rotating plate, etc. of the present utility model.
[0017] The marks of each component in the drawings are as follows: 1. Mounting frame, 2. Mixing barrel, 201. Feeding frame, 3. Servo motor, 4. Discharge hopper, 41. Rotating plate, 5. Rotating shaft, 51. Mixing screw propeller, 52. Scraping plate, 6. Heating mechanism, 60. Heating box, 61. Fan, 62. Heating pipe, 63. Air inlet plate, 64. Heat-resistant cloth. Detailed Embodiment
[0018] It should be noted first that in the embodiments described differently, the same components are provided with the same reference numerals or the same component names. Among them, the disclosure contained throughout the specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and illustrated drawings and are meaningfully applied to the new positions when the positions change.
[0019] A drying device for plastic products, as Figures 1 - 5 shown, includes a mounting frame 1, a stirring barrel 2, a feeding frame 201, a servo motor 3, a stirring assembly, and a heating mechanism 6. The top of the mounting frame 1 is rotatably connected to the stirring barrel 2. The right side of the stirring barrel 2 is fixedly connected to the feeding frame 201. The feeding frame 201 is internally connected to the stirring barrel 2. Two heating mechanisms 6 are connected to the top of the stirring barrel 2. The inside of the stirring barrel 2 is heated by the heating mechanism 6. A stirring assembly is connected inside the stirring barrel 2. The servo motor 3 drives the stirring assembly to stir the plastic products. The servo motor 3 is installed on the front side of the mounting frame 1 and is connected to the stirring assembly. The stirring assembly includes a rotating shaft 5 and stirring propellers 51. The rotating shaft 5 is rotatably connected inside the stirring barrel 2. Two stirring propellers 51 are fixedly connected to the outside of the rotating shaft 5. The two stirring propellers 51 are symmetrically arranged along the axial direction of the rotating shaft 5. By controlling the forward and reverse rotation of the stirring assembly by the servo motor 3, the plastic products can be repeatedly stirred on the inner wall of the stirring barrel 2, so that the plastic products in the stirring barrel 2 can be fully contacted with the hot air, improving the drying efficiency of this drying device and avoiding an increase in the energy consumption of this drying device. When drying the plastic products, the plastic products are put into the stirring barrel 2 from the feeding frame 201. When the stirring assembly rotates, the symmetrically arranged stirring propellers 51 gather the plastic products towards the middle of the stirring barrel 2. When the stirring assembly rotates in reverse, the symmetrically arranged stirring propellers 51 disperse the plastic products towards the front and rear sides of the stirring barrel 2.
[0020] As Figure 1 、 Figure 2 and Figure 4As shown, the heating mechanism 6 includes a heating box 60, a fan 61, and heating tubes 62. Two heating boxes 60 are fixedly connected to the top of the stirring barrel 2. The bottoms of the heating boxes 60 are open, and the heating boxes 60 are both communicated with the stirring barrel 2. Fans 61 are installed on the tops of the heating boxes 60, and heat sinks are fixedly connected to the tops of the fans 61 to prevent the fans 61 from overheating. At least six heating tubes 62 are fixedly connected inside the heating boxes 60, which can quickly heat the plastic products in the heating boxes 60. When heating the inside of the stirring barrel 2, under the combined action of the fan 61 and the heating plate, hot air is blown from the heating box 60 into the stirring barrel 2, so that the stirring barrel 2 is quickly filled with hot air, and the hot air can continuously circulate in the stirring barrel 2 under the stirring action of the stirring assembly, ensuring that the hot air can fully contact the plastic products and further improving the drying efficiency of the plastic products.
[0021] As Figure 2 and Figure 3 shown, it further includes a scraper 52. A scraper 52 is fixedly connected between the two stirring propellers 51. The length of the scraper 52 is the same as the length of the inner wall of the stirring barrel 2, and the edge of the scraper 52 fits the inner wall of the stirring barrel 2. When the stirring propellers 51 stir the plastic products, the scraper 52 can stir the plastic products on the inner wall of the stirring barrel 2, improving the stirring efficiency of the stirring assembly and further improving the drying efficiency of this drying device.
[0022] As Figure 1 , Figure 2 and Figure 5 shown, it further includes a discharge hopper 4 and a rotating plate 41. A discharge hopper 4 is fixedly connected to the bottom of the stirring barrel 2. The discharge hopper 4 is communicated with the stirring barrel 2. A rotating plate 41 is rotatably connected inside the discharge hopper 4. The rotating plate 41 is electrically driven. After the plastic products are dried, there is no need to manually rotate the rotating plate 41, improving the processing efficiency of this drying device. Initially, the rotating plate 41 forms a closed space with the stirring barrel 2, enabling the plastic products to be dried in the stirring barrel 2. After the plastic products are dried, the rotating plate 41 is rotated to make the plastic products fall from the bottom of the stirring barrel 2 into the discharge hopper 4, and then the plastic products fall out of this drying device from the discharge hopper 4.
[0023] As Figure 2 , Figure 4 and Figure 5 shown, it further includes an air inlet plate 63. The air inlet plates 63 are fixedly connected to the bottoms of the heating boxes 60. At least one small hole is opened on the air inlet plate 63. The length of the air inlet plate 63 is the same as the length of the inner wall of the stirring barrel 2, and the material of the air inlet plate 63 is Teflon. When the plastic products are dried, the air inlet plate 63 can help ensure that the hot air is evenly distributed on the plastic products, prevent local overheating inside the stirring barrel 2, prevent the plastic products from contacting the heating tubes 62 and burning or damaging the heating tubes 62.
[0024] As Figure 2 and Figure 4 shown, it further includes a high-temperature resistant cloth 64. The high-temperature resistant cloth 64 is fixedly connected to the bottom of the air inlet plate 63, and the high-temperature resistant cloth 64 is closely attached to the edge of the stirring propeller 51. When drying plastic products, the high-temperature resistant cloth 64 can absorb the moisture of the plastic products, further improving the drying efficiency of the plastic products.
[0025] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.
Claims
1. A drying device for plastic products, comprising a mounting frame (1), a stirring barrel (2) and a loading frame (201), wherein the top of the mounting frame (1) is rotatably connected to the stirring barrel (2), the right side of the stirring barrel (2) is fixedly connected to the loading frame (201), and the loading frame (201) is connected to the inside of the stirring barrel (2), characterized in that: The invention also comprises a servo motor (3), a stirring assembly and a heating mechanism (6); two heating mechanisms (6) are connected to the top of the stirring barrel (2); the stirring barrel (2) is internally connected to the stirring assembly; a servo motor (3) is installed on the front side of the mounting frame (1); the servo motor (3) is connected to the stirring assembly; the stirring assembly comprises a rotating shaft (5) and a stirring propeller (51); the rotating shaft (5) is rotatably connected to the inside of the stirring barrel (2); two stirring propellers (51) are fixedly connected to the outside of the rotating shaft (5); the two stirring propellers (51) are symmetrically arranged along the axis of the rotating shaft (5).
2. A drying device for plastic products according to claim 1, characterized in that: The heating mechanism (6) comprises a heating box (60), a fan (61) and a heating tube (62). The top of the stirring barrel (2) is fixedly connected to the two heating boxes (60). The bottoms of the heating boxes (60) are open. The heating boxes (60) are connected to the stirring barrel (2). The tops of the heating boxes (60) are installed with fans (61). The interiors of the heating boxes (60) are fixedly connected to the heating tubes (62).
3. A drying device for plastic products according to claim 2, characterized in that: It also includes a scraper (52), and the scraper (52) is fixedly connected between the two stirring propellers (51).
4. A drying device for plastic products according to claim 3, characterized in that: It also includes a discharge hopper (4) and a rotating plate (41); the bottom of the mixing barrel (2) is fixedly connected to the discharge hopper (4); the discharge hopper (4) is in communication with the mixing barrel (2); and the inside of the discharge hopper (4) is rotatably connected to the rotating plate (41).
5. A drying device for plastic products according to claim 4, characterized in that: It also includes an air intake plate (63), the bottom of the heating box (60) is fixedly connected to the air intake plate (63), and at least one small hole is opened on the air intake plate (63).
6. A drying device for plastic products according to claim 5, characterized in that: It also includes a high temperature resistant cloth (64), and the bottom of the air intake plate (63) is fixedly connected with the high temperature resistant cloth (64).