A temperature-controlled heating device for plastic particle production
By improving the feeding components and filtration system, the problems of cumbersome feeding and exhaust gas emissions have been solved, achieving convenient feeding and exhaust gas purification, and improving the ease of use and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HUAZHONG NEW MATERIALS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-16
Smart Images
Figure CN224360507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic granule production technology, specifically a temperature-controlled heating device for plastic granule production. Background Technology
[0002] Plastic granules are the raw materials for plastic products. They are made from high molecular polymers and processed into granules, which facilitates subsequent melting and shaping into various products. In the production of plastic granules, temperature control heating devices are used to precisely regulate the material processing temperature to ensure that the polymer maintains ideal fluidity and physical properties during the melting, mixing, or molding stages. By monitoring and stabilizing the temperature in real time, they prevent overheating that leads to material decomposition or low temperature that causes uneven plasticization, ensuring uniform granule color and stable density. At the same time, they reduce energy consumption and improve production efficiency. They are the core equipment for ensuring the quality and processing stability of plastic granules.
[0003] Existing patent CN214491197U discloses a heating device for producing compressed plastic granules, comprising a machine body, a first motor assembly fixedly installed at the top center of the machine body, a feed pipe fixedly installed at the top of the machine body, a rotating rod fixedly connected to the bottom of the first motor assembly, a stirring assembly fixedly installed outside the rotating rod, a fixing block fixedly installed on the inner wall of the machine body, a heating bucket fixedly connected to the outer wall of the fixing block, and an electric heating plate fixedly installed on the outer wall of the heating bucket. This heating device for producing compressed plastic granules utilizes an electric heating plate fixedly installed on the outer wall of the heating bucket, a rotating rod extending into the interior of the heating bucket, and a stirring assembly fixedly installed outside the rotating rod. A soft covering layer is used to wrap the rubber stirring blades, and the first motor assembly drives the rotating rod to rotate.
[0004] The existing technology has the following problems:
[0005] 1. The existing temperature control heating devices used for plastic pellet production mostly have their feed inlets located at the top of the device, which is relatively high. When feeding, the plastic material to be heated needs to be lifted to the top of the device, which makes the feeding process cumbersome, time-consuming and labor-intensive, and increases the labor intensity of the workers.
[0006] 2. Existing temperature-controlled heating devices used for plastic pellet production generate a large amount of harmful waste gas during the temperature-controlled heating process. However, since the devices do not have purification and filtration functions, they directly discharge harmful waste gas into the surrounding air, which not only affects the quality of the surrounding environment but also endangers the health of workers, reduces work safety, and fails to meet the usage requirements. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a temperature-controlled heating device for plastic granule production. It solves the problem that current methods require lifting the plastic material to be heated to the top of the device for feeding, which makes the feeding process cumbersome. Furthermore, the lack of purification and filtration functions results in the device directly releasing harmful waste gases into the surrounding air, affecting not only the quality of the surrounding environment but also the health of the workers.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a temperature-controlled heating device for plastic granule production, comprising a body, a temperature sensor disposed on the upper front of the body, a feeding assembly disposed on one side of the body, an air supply pipe disposed on one side of the top of the body, a filter box disposed at the bottom of the air supply pipe, a mounting frame disposed on one side of the front of the filter box, a sealing strip disposed on one side of the mounting frame, a first filter plate disposed on the upper inside of the mounting frame, a second filter plate disposed in the middle inside the mounting frame, a third filter plate disposed on the lower inside the mounting frame, an exhaust fan disposed at the bottom of one side of the filter box, and an exhaust pipe disposed at the output end of the exhaust fan.
[0009] As a preferred technical solution of this utility model, the feeding assembly includes a feeding cylinder, a limiting plate is provided at the top inside the feeding cylinder, a motor is provided at the top of the limiting plate, a rotating shaft is provided at the output end of the motor, an auger blade is provided on the outer surface of the rotating shaft, a feeding hopper is provided at the bottom of one side of the feeding cylinder, and a guide pipe is provided at the top of the other side of the feeding cylinder.
[0010] As a preferred technical solution of this utility model, the limiting plate is fixedly installed on the feeding cylinder, the position of the limiting plate is corresponding to the position of the guide tube, and the limiting plate is slidably connected to the outer surface of the rotating shaft.
[0011] As a preferred embodiment of this utility model, the auger blades and the rotating shaft are integrated, and the size of the auger blades is adapted to the size of the feeding cylinder.
[0012] In a preferred embodiment of this utility model, the mounting bracket is fixedly connected to the filter box, and the first filter plate, the second filter plate, and the third filter plate are all installed on the mounting bracket by snap-fit connection.
[0013] As a preferred technical solution of this utility model, the sealing strip is installed on the mounting frame by adhesive connection, and there are several groups of sealing strips arranged in a rectangular array.
[0014] As a preferred embodiment of this utility model, the first filter plate is specifically made of polyester fiber, the second filter plate is specifically made of PP cotton, and the third filter plate is specifically made of activated carbon.
[0015] Compared with the prior art, this utility model provides a temperature control heating device for plastic granule production, which has the following beneficial effects:
[0016] 1. This temperature-controlled heating device for plastic granule production comprises a machine body, a feeding cylinder, a motor, a rotating shaft, auger blades, a feeding hopper, and a guide pipe. During feeding, the plastic material to be heated is first placed into the feeding hopper. Then, by starting the motor, the rotating shaft and auger blades rotate synchronously inside the feeding cylinder, conveying the plastic material located at the bottom of the feeding cylinder to the top. Finally, guided by the guide pipe, the plastic material to be heated is poured into the machine body for feeding. This design makes the feeding process more convenient, time-saving, and labor-saving, avoiding the need to lift the plastic material to be heated to the top of the device for feeding, thus reducing the labor intensity of the workers.
[0017] 2. This temperature-controlled heating device for plastic granule production comprises a gas supply pipe, a filter box, a mounting frame, a sealing strip, a first filter plate, a second filter plate, a third filter plate, an exhaust fan, and an exhaust pipe. During the temperature-controlled heating process, the exhaust fan is activated to generate suction, allowing the gas supply pipe to transport the harmful waste gas generated during operation to the filter box. Then, through the cooperation of the first, second, and third filter plates, the harmful waste gas undergoes multiple purification and filtration treatments, effectively removing harmful substances. When filter plates need to be replaced, they can be directly pulled out from the mounting frame for replacement. The sealing strip prevents leakage at the filter plate installation points. Finally, the treated gas is discharged through the exhaust pipe, resulting in cleaner exhaust air. This design enables the device to perform purification and filtration functions, avoiding the direct discharge of harmful waste gas into the surrounding air, improving operational safety, and meeting usage requirements. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the feeding cylinder of this utility model;
[0020] Figure 3 This is a cross-sectional structural diagram of the filter box of this utility model;
[0021] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.
[0022] In the diagram: 1. Machine body; 2. Temperature sensor; 3. Feeding assembly; 301. Feeding cylinder; 302. Limiting plate; 303. Motor; 304. Rotating shaft; 305. Screw blades; 306. Feed hopper; 307. Guide pipe; 4. Air supply pipe; 5. Filter box; 6. Mounting bracket; 7. Sealing strip; 8. First filter plate; 9. Second filter plate; 10. Third filter plate; 11. Exhaust fan; 12. Exhaust pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a temperature-controlled heating device for plastic granule production, comprising a body 1, a temperature sensor 2 disposed on the upper front of the body 1, a feeding assembly 3 disposed on one side of the body 1, an air supply pipe 4 disposed on the top side of the body 1, a filter box 5 disposed at the bottom end of the air supply pipe 4, a mounting frame 6 disposed on one side of the front of the filter box 5, a sealing strip 7 disposed on one side of the mounting frame 6, a first filter plate 8 disposed on the upper inside of the mounting frame 6, a second filter plate 9 disposed in the middle inside the mounting frame 6, a third filter plate 10 disposed on the lower inside the mounting frame 6, an exhaust fan 11 disposed on the bottom side of the filter box 5, and an exhaust pipe 12 disposed at the output end of the exhaust fan 11; the mounting frame 6 is fixedly connected to the filter box 5, and the first filter plate 8, the second filter plate 9, and the third filter plate 10 are all fixedly connected to the mounting frame 6 by snap-fit connection;
[0025] Specifically, when the filter plates need to be replaced, the first filter plate 8, the second filter plate 9, and the third filter plate 10 in the mounting bracket 6 can be directly pulled out and replaced.
[0026] Reference Figure 1 and Figure 2 The feeding assembly 3 includes a feeding cylinder 301. A limiting plate 302 is provided at the top inside the feeding cylinder 301. A motor 303 is provided at the top of the limiting plate 302. A rotating shaft 304 is provided at the output end of the motor 303. A screw conveyor blade 305 is provided on the outer surface of the rotating shaft 304. A feeding hopper 306 is provided at the bottom of one side of the feeding cylinder 301. A guide pipe 307 is provided at the top of the other side of the feeding cylinder 301. The limiting plate 302 is fixedly connected to the feeding cylinder 301. The position of the limiting plate 302 corresponds to the position of the guide pipe 307. The limiting plate 302 is slidably connected to the outer surface of the rotating shaft 304.
[0027] Specifically, the limiting plate 302 facilitates the limiting of the plastic material inside the feeding cylinder 301, preventing it from contacting the motor 303 and causing damage to the motor 303, thus improving the service life of the motor 303.
[0028] Reference Figure 2 The auger blade 305 and the rotating shaft 304 are integrated, and the size of the auger blade 305 is adapted to the size of the feed cylinder 301.
[0029] Specifically, the auger blades 305 can rotate inside the feed cylinder 301 to transport the plastic material located below the feed cylinder 301 to the top of the feed cylinder 301.
[0030] Reference Figure 1 , Figure 3 and Figure 4 The sealing strip 7 is installed on the mounting bracket 6 by adhesive bonding. There are several sets of sealing strips 7, which are arranged in a rectangular array.
[0031] Specifically: The sealing strip 7 can prevent leakage at the filter plate installation point.
[0032] Reference Figure 1 , Figure 3 and Figure 4 The first filter plate 8 is made of polyester fiber, the second filter plate 9 is made of PP cotton, and the third filter plate 10 is made of activated carbon.
[0033] Specifically, the first filter plate 8, the second filter plate 9, and the third filter plate 10 work together to perform multiple purification and filtration treatments on harmful waste gas, so that harmful substances in the waste gas can be effectively removed.
[0034] It should be noted that (temperature sensor 2, motor 303 and exhaust fan 11) are all well-known or known to those skilled in the art, and therefore will not be described here.
[0035] The working principle and usage process of this utility model are as follows: When feeding, the plastic material to be heated is first put into the feeding hopper 306. Then, by starting the motor 303 on the limit plate 302, the rotating shaft 304 and the auger blades 305 in the feeding assembly 3 are driven to rotate synchronously inside the feeding cylinder 301. The plastic material located at the bottom of the feeding cylinder 301 is then conveyed to the top of the feeding cylinder 301. Finally, under the guidance of the guide pipe 307, the plastic material to be heated is conveyed and poured into the machine body 1 for feeding.
[0036] During the temperature-controlled heating process, the exhaust fan 11 is activated to generate suction, which allows the air supply pipe 4 to transport the harmful exhaust gas generated during the operation of the machine body 1 to the filter box 5. Then, through the cooperation of the first filter plate 8, the second filter plate 9 and the third filter plate 10 in the mounting frame 6, the harmful exhaust gas undergoes multiple purification and filtration treatments, effectively removing harmful substances from the exhaust gas. When the filter plate needs to be replaced, it can be directly pulled out and replaced in the mounting frame 6. At the same time, the sealing strip 7 prevents leakage at the filter plate installation point. Finally, the treated gas is discharged through the exhaust pipe 12, making the exhaust air cleaner.
[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A temperature-controlled heating device for plastic pellet production, comprising a body (1), characterized in that: A temperature sensor (2) is provided on the upper front of the machine body (1). A feeding assembly (3) is provided on one side of the machine body (1). An air supply pipe (4) is provided on one side of the top of the machine body (1). A filter box (5) is provided at the bottom of the air supply pipe (4). A mounting bracket (6) is provided on one side of the front of the filter box (5). A sealing strip (7) is provided on one side of the mounting bracket (6). A first filter plate (8) is provided at the upper inside of the mounting bracket (6). A second filter plate (9) is provided in the middle inside the mounting bracket (6). A third filter plate (10) is provided at the lower inside the mounting bracket (6). A blower (11) is provided at the bottom of one side of the filter box (5). An exhaust pipe (12) is provided at the output end of the blower (11).
2. The temperature-controlled heating device for plastic pellet production according to claim 1, characterized in that: The feeding assembly (3) includes a feeding cylinder (301), a limiting plate (302) is provided on the upper part of the feeding cylinder (301), a motor (303) is provided on the top of the limiting plate (302), a rotating shaft (304) is provided at the output end of the motor (303), an auger blade (305) is provided on the outer surface of the rotating shaft (304), a feeding hopper (306) is provided at the bottom of one side of the feeding cylinder (301), and a guide pipe (307) is provided on the upper part of the other side of the feeding cylinder (301).
3. The temperature-controlled heating device for plastic pellet production according to claim 2, characterized in that: The limiting plate (302) is fixedly installed on the feeding cylinder (301). The position of the limiting plate (302) corresponds to the position of the guide tube (307). The limiting plate (302) is slidably connected to the outer surface of the rotating shaft (304).
4. A temperature-controlled heating device for plastic pellet production according to claim 2, characterized in that: The auger blade (305) and the rotating shaft (304) are integrated, and the size of the auger blade (305) is adapted to the size of the feed cylinder (301).
5. A temperature-controlled heating device for plastic pellet production according to claim 1, characterized in that: The mounting bracket (6) is fixedly connected to the filter box (5), and the first filter plate (8), the second filter plate (9) and the third filter plate (10) are all installed on the mounting bracket (6) by snap-fit connection.
6. The temperature-controlled heating device for plastic pellet production according to claim 1, characterized in that: The sealing strip (7) is installed on the mounting frame (6) by adhesive connection. There are several sets of the sealing strip (7), and the sealing strip (7) is arranged in a rectangular array.
7. A temperature-controlled heating device for plastic pellet production according to claim 1, characterized in that: The first filter plate (8) is made of polyester fiber, the second filter plate (9) is made of PP cotton, and the third filter plate (10) is made of activated carbon.