Energy-saving high-performance engineering plastic preheating device
By designing a combination of tank, cover, pressurization components and depressurization components, the engineering plastic preheating device achieves efficient heat utilization and safe depressurization, solving the problems of low heat utilization and insufficient safety in existing devices, and improving the stability and safety of the preheating process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING SEKONA HIGH-TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-14
AI Technical Summary
Existing engineering plastic preheating devices have low heat utilization and are difficult to guarantee safety, especially in terms of pressure relief function.
An energy-saving, high-performance engineering plastic preheating device was designed, comprising a tank body, a cover plate, a pressurizing component, and a pressure relief component. The pressurizing component improves the sealing effect, the heat equalization component ensures uniform heating of the plastic, and the added pressure relief component enables safe pressure relief.
It improves heat utilization, ensures the safety and stability of the plastic preheating process, avoids unstable extrusion volume due to temperature differences, and enhances the safety of the preheating device.
Smart Images

Figure CN224489678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic preheating technology, specifically to an energy-saving, high-performance engineering plastic preheating device. Background Technology
[0002] Engineering plastic preheating devices are specialized equipment used to preheat plastics in advance. The main purpose is to reduce the temperature difference between the plastic and the extrusion equipment when the plastic is injected into the extrusion equipment after preheating. This avoids excessive temperature differences between the plastic and the extrusion equipment, which can cause pressure fluctuations during extrusion, resulting in unstable extrusion volume and affecting the quality of subsequent plastic preheating extrusion.
[0003] Existing preheating devices have low heat utilization and most do not have pressure relief functions, making it difficult to guarantee safety when preheating plastics. Utility Model Content
[0004] Based on the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide an energy-saving high-performance engineering plastic preheating device, improve the heat utilization rate of the preheating device, and add a pressure relief function to the preheating device to improve the safety of the preheating device.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an energy-saving high-performance engineering plastic preheating device, including a tank, a cover plate and a pressurizing component. A feeding hopper is fixed on one side of the tank, and a discharging hopper is provided on the side of the tank away from the feeding hopper. The interior of the feeding hopper is connected to the interior of the tank. The cover plate covers the opening end of the feeding hopper. The pressurizing component includes a buckle plate and a bolt. A pressure plate one and a pressure plate two are fixed at the two ends of the buckle plate, respectively. A threaded hole is opened on the pressure plate one, and the bolt is engaged in the threaded hole. The buckle plate is fastened to the edge of the feeding hopper and the cover plate. The inner wall of the pressure plate two abuts against the bottom wall of the feeding hopper near the edge of the tank. The end of the bolt near the pressure plate two abuts against the top of the cover plate.
[0006] Furthermore, the bolt has a widened portion one at one end away from the pressure plate two, and a through hole is provided on the widened portion one. The pressure assembly also includes a through rod, which passes through the through hole, and both ends of the through rod are provided with widened portions two.
[0007] Furthermore, a groove is provided on the top of the cover plate, and the end of the bolt near the pressure plate abuts against the bottom wall of the groove.
[0008] Furthermore, the cover plate has an internal cavity, and a pressure relief channel one is formed on the end face of the cover plate near the tank body. The pressure relief channel one communicates with the internal cavity at the side wall of the internal cavity. A pressure relief channel two is formed on the end face of the cover plate away from the tank body. The pressure relief channel two communicates with the internal cavity. A pressure relief assembly is provided inside the cover plate. The pressure relief assembly includes an arc-shaped column. The arc-shaped column is located in the internal cavity. One end of the arc-shaped column is connected to a pressure relief pipe. The pressure relief pipe is located in the pressure relief channel two.
[0009] Furthermore, the end of the pressure relief pipe away from the arc-shaped column is provided with a widened section three, and a pressure relief hole is opened on the widened section three. The pressure relief hole is connected to the interior of the pressure relief pipe. A connecting rod is fixed on the widened section three, and a ring is fixed on the connecting rod.
[0010] Furthermore, it includes a heat equalization assembly, which includes a rotating shaft and a tipping bucket. The two ends of the rotating shaft are rotatably connected to the two ends of the tank body, respectively. A connecting post is fixed to the concave side of the tipping bucket, and a sleeve is connected to the connecting post. The sleeve is fitted onto the rotating shaft.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0012] 1. Plastic is injected into the tank from the feed hopper. The external torque drives the rotating shaft to rotate, which in turn drives the tipping bucket to rotate, turning the plastic injected into the tank. This allows the plastic in the tank to be turned back and forth while being preheated, so that it is heated evenly.
[0013] 2. By covering the feed hopper with the cover plate, the inside of the tank is sealed during plastic preheating. By rotating the bolt, the cover plate is pressed tightly against the feed hopper, which enhances the sealing effect of the preheating device and improves its heat utilization rate.
[0014] 3. When it is necessary to relieve pressure inside the tank, the widened part three can be rotated, which drives the arc-shaped column to rotate through the pressure relief pipe, so that the arc-shaped column opens from the connection between the pressure relief channel one and the inner cavity. The pressure inside the tank enters the pressure relief pipe through the pressure relief channel one and the inner cavity, and is finally discharged from the pressure relief hole, realizing the pressure relief function of the preheating device. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] In the picture:
[0017] Figure 1 This is a three-dimensional schematic diagram of the preheating device in this utility model;
[0018] Figure 2This is an exploded schematic diagram of the preheating device in this utility model;
[0019] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the tank;
[0020] Figure 4 yes Figure 1 An explosion diagram of the heat-regulating component in the image;
[0021] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the cover plate in the middle;
[0022] Figure 6 yes Figure 1 A sectional view of the cover plate in the middle;
[0023] Figure 7 yes Figure 5 A three-dimensional schematic diagram of the pressure relief components in the middle;
[0024] Figure 8 yes Figure 1 A three-dimensional schematic diagram of the pressurization component in the middle;
[0025] Figure 9 yes Figure 1 An explosion diagram of the pressurization component in the middle;
[0026] In the picture:
[0027] 1. Tank body;
[0028] 11. Feed hopper; 12. Discharge hopper;
[0029] 2. Heat equalization component;
[0030] 21. Axle; 22. Tipping bucket;
[0031] 221. Connecting pile; 222. Sleeve;
[0032] 3. Cover plate;
[0033] 31. Pressure relief assembly;
[0034] 301. Groove; 302. Pressure relief channel one; 303. Inner cavity; 304. Pressure relief channel two;
[0035] 311. Arc-shaped column; 312. Pressure relief pipe; 313. Widened section three; 314. Connecting rod; 315. Ring buckle;
[0036] 3130, Pressure relief hole;
[0037] 4. Pressurization components;
[0038] 41. Buckle plate; 42. Bolt; 43. Through rod;
[0039] 410. Threaded hole; 411. Pressure plate one; 412. Pressure plate two;
[0040] 421. Widened section one;
[0041] 431. Widened section two;
[0042] 4210. Through hole. Detailed Implementation
[0043] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0044] Please see Figure 1-9 The present invention provides a technical solution: an energy-saving high-performance engineering plastic preheating device, comprising a tank 1, a heat equalization component 2, a cover plate 3, and a pressurization component 4.
[0045] A feed hopper 11 is fixed on one side of the tank body 1, and a discharge hopper 12 is provided on the side of the tank body 1 away from the feed hopper 11. The interior of the feed hopper 11 is connected to the interior of the tank body 1.
[0046] The uniform heating component 2 includes a rotating shaft 21 and a tipping bucket 22. The two ends of the rotating shaft 21 are rotatably connected to the two ends of the tank body 1, respectively. A connecting post 221 is fixed on the concave side of the tipping bucket 22, and a sleeve 222 is connected to the connecting post 221. The sleeve 222 is fitted onto the rotating shaft 21.
[0047] The cover plate 3 covers the opening end of the feed hopper 11. The top of the cover plate 3 has a groove 301 and the inside of the cover plate 3 has an inner cavity 303. The end face of the cover plate 3 near the tank body 1 has a pressure relief channel 302. The pressure relief channel 302 communicates with the inner cavity 303 at the side wall of the inner cavity 303. The end face of the cover plate 3 away from the tank body 1 has a pressure relief channel 304. The pressure relief channel 304 communicates with the inner cavity 303.
[0048] The cover plate 3 is provided with a pressure relief assembly 31, which includes an arc-shaped column 311. The arc-shaped column 311 is located in the inner cavity 303. One end of the arc-shaped column 311 is connected to a pressure relief pipe 312. The pressure relief pipe 312 is located in the second pressure relief channel 304. The end of the pressure relief pipe 312 away from the arc-shaped column 311 is provided with a widened part 313. A pressure relief hole 3130 is opened on the widened part 313. The pressure relief hole 3130 communicates with the interior of the pressure relief pipe 312.
[0049] A connecting rod 314 is fixed on the widened part 313, and a ring 315 is fixed on the connecting rod 314.
[0050] The pressurizing assembly 4 includes a buckle plate 41 and a bolt 42. The two ends of the buckle plate 41 are respectively fixed with a pressure plate 411 and a pressure plate 412. The pressure plate 411 has a threaded hole 410, and the bolt 42 is engaged in the threaded hole 410. The buckle plate 41 is fastened to the edge of the feed hopper 11 and the cover plate 3. The inner wall of the pressure plate 412 abuts against the bottom wall of the feed hopper 11 near the edge of the tank 1. The end of the bolt 42 near the pressure plate 412 abuts against the top of the cover plate 3. The end of the bolt 42 away from the pressure plate 412 has a widened part 421, and a through hole 4210 is provided on the widened part 421. The pressurizing assembly 4 also includes a through rod 43, which passes through the through hole 4210. Both ends of the through rod 43 have a widened part 431. The end of the bolt 42 near the pressure plate 412 abuts against the bottom wall of the groove 301.
[0051] Plastic is injected into the tank 1 from the feed hopper 11. The external torque drives the rotating shaft 21 to rotate, which in turn drives the tipping bucket 22 to rotate, turning the plastic injected into the tank 1. This allows the plastic in the tank 1 to be turned back and forth while being preheated, ensuring that it is heated evenly.
[0052] By covering the feed hopper 11 with the cover plate 3, the inside of the tank 1 is sealed during plastic preheating. By rotating the bolt 42, it moves downward relative to the pressure plate 411, pressing the cover plate 3 tightly onto the feed hopper 11, thereby enhancing the sealing effect of the preheating device and improving its heat utilization rate.
[0053] The added widened section 421 and through rod 43 allow the bolt 42 to be turned in a labor-saving manner, thereby pressing the cover plate 3.
[0054] When it is necessary to relieve pressure inside the tank 1, the widened part 313 can be rotated, which drives the arc-shaped column 311 to rotate through the pressure relief pipe 312. This causes the arc-shaped column 311 to open from the connection between the pressure relief channel 302 and the inner cavity 303. The pressure inside the tank 1 enters the pressure relief pipe 312 through the pressure relief channel 302 and the inner cavity 303, and is finally discharged from the pressure relief hole 3130, thus realizing the pressure relief function of the preheating device.
[0055] The added connecting rod 314 and ring 315 can rotate the entire pressure relief assembly 31 by rotating the ring 315. Alternatively, an iron rod (not shown) or other parts that can be inserted into the ring 315 can be inserted into the ring 315, and the pressure relief assembly 31 can be rotated in this way. In this way, the user can be prevented from being burned from the pressure relief hole 3130.
[0056] The added pressure relief function of the preheating device can effectively improve the safety of the preheating device.
[0057] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. An energy-saving, high-performance engineering plastic preheating device, characterized in that: The device includes a tank body, a cover plate, and a pressurizing assembly. A feed hopper is fixed to one side of the tank body, and a discharge hopper is provided on the side of the tank body away from the feed hopper. The interior of the feed hopper is connected to the interior of the tank body. The cover plate covers the opening end of the feed hopper. The pressurizing assembly includes a buckle plate and a bolt. Two pressure plates are fixed to the two ends of the buckle plate, respectively. A threaded hole is opened on the pressure plate, and the bolt engages in the threaded hole. The buckle plate is fastened to the edges of the feed hopper and the cover plate. The inner wall of the pressure plate abuts against the bottom wall of the feed hopper near the edge of the tank body. The end of the bolt near the pressure plate abuts against the top of the cover plate.
2. The energy-saving high-performance engineering plastic preheating device according to claim 1, characterized in that: The bolt has a widened portion one at one end away from the pressure plate two, and a through hole is provided on the widened portion one. The pressure assembly also includes a through rod, which passes through the through hole, and both ends of the through rod are provided with widened portions two.
3. The energy-saving high-performance engineering plastic preheating device according to claim 2, characterized in that: The top of the cover plate has a groove, and the end of the bolt near the pressure plate abuts against the bottom wall of the groove.
4. The energy-saving high-performance engineering plastic preheating device according to claim 1, characterized in that: The cover plate has an internal cavity. A pressure relief channel one is formed on the end face of the cover plate near the tank body. The pressure relief channel one communicates with the internal cavity at the side wall of the internal cavity. A pressure relief channel two is formed on the end face of the cover plate away from the tank body. The pressure relief channel two communicates with the internal cavity. A pressure relief assembly is provided inside the cover plate. The pressure relief assembly includes an arc-shaped column. The arc-shaped column is located in the internal cavity. One end of the arc-shaped column is connected to a pressure relief pipe. The pressure relief pipe is located in the pressure relief channel two.
5. The energy-saving high-performance engineering plastic preheating device according to claim 4, characterized in that: The pressure relief pipe has a widened section three at one end away from the arc-shaped column. A pressure relief hole is opened on the widened section three, and the pressure relief hole communicates with the interior of the pressure relief pipe. A connecting rod is fixed on the widened section three, and a ring is fixed on the connecting rod.
6. The energy-saving high-performance engineering plastic preheating device according to claim 1, characterized in that: The device includes a heat equalization assembly, which includes a rotating shaft and a tipping bucket. The two ends of the rotating shaft are rotatably connected to the two ends of the tank body, respectively. A connecting post is fixed to the concave side of the tipping bucket, and a sleeve is connected to the connecting post. The sleeve is fitted onto the rotating shaft.