Auxiliary discharging mechanism for PET foaming extruder
The auxiliary feeding mechanism controlled by the electronic actuator and the variable frequency motor solves the problems of uneven material feeding and clogging in the PET foaming extruder, realizes precise adjustment of feeding speed and stability of material conveying, and ensures the continuity of production and the consistency of product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN HONGSHENG PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-10
AI Technical Summary
Uneven material feeding, easy clogging, and difficulty in precisely controlling the feeding speed in PET foam extruders affect production stability and product quality consistency.
An auxiliary feeding mechanism controlled by an electronic actuator and a variable frequency motor is used to precisely adjust the feeding speed and the sealed conveying of materials by adjusting the valve plate angle and the speed of the screw conveyor.
It achieves stable and precise control of the feeding speed, avoids blockages and material leakage, and ensures continuous production and consistent product quality.
Smart Images

Figure CN224476427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder technology, specifically to an auxiliary feeding mechanism for a PET foaming extruder. Background Technology
[0002] In the production process of PET foam extruders, the material feeding stage is crucial.
[0003] Uneven material feeding is a common problem, leading to fluctuations in material supply during subsequent production stages and disrupting the stable and efficient production process. Secondly, clogging is another prominent issue with traditional feeding methods. When materials have poor flowability or the feeding port is poorly designed, they easily accumulate and clog at the port. Clogging not only interrupts material supply and affects production progress but also requires significant time and manpower for cleaning and unclogging, imposing additional costs on the company. Precise control of feeding speed is also a key issue. In many production scenarios, the feeding speed needs to be precisely adjusted according to production requirements to ensure production continuity and product quality consistency. However, traditional feeding methods often lack effective control mechanisms, making precise speed adjustment difficult. Therefore, an auxiliary feeding mechanism for PET foam extruders is needed to address these problems. Utility Model Content
[0004] Uneven material feeding is a common problem, leading to fluctuations in material supply during subsequent production stages and disrupting a stable and efficient production process. Secondly, clogging is another prominent issue with traditional feeding methods. When materials have poor flowability or the feeding port is poorly designed, they easily accumulate and clog at the port. Clogging not only interrupts material supply and affects production progress but also requires significant time and manpower for cleaning and unclogging, imposing additional costs on the company. Precise control of feeding speed is also a key issue. In many production scenarios, the feeding speed needs to be precisely adjusted according to production needs to ensure production continuity and product quality consistency. However, traditional feeding methods often lack effective control mechanisms, making precise speed adjustment difficult. The purpose of this invention is to provide an auxiliary feeding mechanism for a PET foam extruder to solve the problems mentioned in the background.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An auxiliary feeding mechanism for a PET foaming extruder includes a main body, a quantitative conveying component fixedly connected to the top of the main body, and a feeding component provided on the top of the quantitative conveying component;
[0007] The quantitative conveying assembly includes a feeding hopper, a mounting plate fixedly connected to the bottom of the feeding hopper, an electronically controlled actuator mounted on the side of the mounting plate, the electronically controlled actuator including a driver and a flow sensor, a valve plate fixedly connected to the output end of the driver, and an output pipe fixedly connected to the bottom of the valve plate; the feeding assembly includes a support frame, a conveying hopper fixedly connected to the top of the support frame, a mounting plate fixedly connected to the top of the conveying hopper, a variable frequency motor installed inside the mounting plate, and a screw conveyor fixedly connected to the output end of the variable frequency motor.
[0008] As a preferred embodiment of this utility model, the top of the feeding hopper is provided with a connection port, and the valve plate is disposed inside the valve hopper.
[0009] As a preferred embodiment of this utility model, a feed pipe is fixedly connected to the top of the conveying bin, and a discharge pipe is fixedly connected to the bottom of the conveying bin.
[0010] As a preferred embodiment of this utility model, a bearing seat is provided at the bottom of the support frame, and the support frame is made of stainless steel.
[0011] As a preferred embodiment of this utility model, the main body includes a base plate, a reaction chamber is provided on the base plate, a conveying pipe is fixedly connected to the top of the reaction chamber, and the conveying pipe and the output pipe are connected.
[0012] As a preferred embodiment of this utility model, the bottom of the support frame is fixedly connected with four feet.
[0013] As a preferred embodiment of this utility model, a support frame is fixedly connected to the top of the base plate, and a PLC controller is fixedly connected to the side of the support frame.
[0014] As a preferred embodiment of this utility model, the PLC controller is provided with a control panel on its side.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. In this utility model, the angle of the valve plate can be controlled with extremely high precision by using an electric actuator. Through precise angle adjustment, the feeding speed can be finely adjusted, and the flow rate can be accurately controlled from very small flow rate to large flow rate. Compared with the traditional mechanical adjustment method, the electric actuator is not affected by human factors. Each adjustment can reach the set angle, ensuring the stability of the feeding speed. In the continuous production process, this stability is crucial and can avoid product quality differences caused by fluctuations in feeding speed.
[0017] 2. In this utility model, by utilizing the closed structure of the conveying chamber, the material is completely enclosed in the spiral body during the spiral conveying process. This sealed conveying method can effectively prevent material leakage during the conveying process and avoid material pollution to the surrounding environment. The rotation speed of the spiral conveying rod is controlled by a variable frequency motor, which can achieve stepless speed regulation. By adjusting the speed of the motor through frequency conversion, the rotation speed of the spiral conveying rod can be controlled. 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 schematic diagram of the spiral conveyor assembly structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the quantitative feeding component of this utility model;
[0021] Figure 4 This is a schematic diagram of the control operation component structure of this utility model.
[0022] In the diagram: 1. Main body; 101. Base plate; 102. Foot; 103. Reaction chamber; 104. Support frame; 105. PLC controller; 106. Control panel; 107. Conveying pipe; 2. Quantitative conveying assembly; 201. Feeding bin; 202. Connection port; 203. Valve chamber; 204. Electrical actuator; 205. Valve plate; 206. Output pipe; 3. Feeding assembly; 301. Support frame; 302. Conveying bin; 303. Mounting plate; 304. Variable frequency motor; 305. Screw conveyor; 306. Discharge pipe; 307. Feed pipe; 308. Bearing seat. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] For examples, please refer to Figures 1-4 This utility model provides a technical solution:
[0025] An auxiliary feeding mechanism for a PET foaming extruder includes a main body 1, a quantitative conveying component 2 fixedly connected to the top of the main body 1, and a feeding component 3 disposed on the top of the quantitative conveying component 2.
[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the quantitative conveying assembly 2 includes a feeding hopper 201, with a mounting plate 303 fixedly connected to the bottom of the feeding hopper 201. An electric actuator 204 is mounted on the side of the mounting plate 303. The electric actuator 204 includes a driver and a flow sensor. A valve plate 205 is fixedly connected to the output end of the driver, and an output pipe 206 is fixedly connected to the bottom of the valve plate 205. The feeding assembly 3 includes a support frame 301, with a conveying hopper 302 fixedly connected to the top of the support frame 301. A mounting plate 303 is fixedly connected to the top of the conveying hopper 302, and a variable frequency motor 304 is installed inside the mounting plate 303. The output end of the variable frequency motor 304 is fixedly connected to the screw conveyor 305. The electric actuator 204 can control the angle of the valve plate 205 with extremely high precision. Through precise angle adjustment, the feeding speed can be finely adjusted. It can accurately control the flow rate from very small flow rate to large flow rate. Compared with the traditional mechanical adjustment method, the electric actuator 204 is not affected by human factors. Each adjustment can reach the set angle, ensuring the stability of the feeding speed. In the continuous production process, this stability is crucial and can avoid product quality differences caused by fluctuations in feeding speed.
[0027] The top of the feeding hopper 201 has a connection port 202, the valve plate 205 is located inside the valve chamber 203, the top of the conveying hopper 302 is fixedly connected to the feed pipe 307, the bottom of the conveying hopper 302 is fixedly connected to the discharge pipe 306, the bottom of the support frame 301 is provided with a bearing seat 308, and the support frame 301 is made of stainless steel. Since the conveying hopper 302 is a closed structure, the material is completely enclosed in the spiral body during the screw conveying process. This sealed conveying method can effectively prevent material leakage during conveying and avoid pollution to the surrounding environment. The rotational speed of the screw conveyor 305 is controlled by a variable frequency motor 304, which can achieve stepless speed regulation. By adjusting the speed of the motor through frequency conversion, the rotational speed of the screw conveyor 305 is controlled.
[0028] In this embodiment, as Figure 1 and Figure 4 As shown, the connecting body 1 includes a base plate 101, a reaction chamber 103 is provided on the base plate 101, a conveying pipe 107 is fixed on the top of the reaction chamber 103, the conveying pipe 107 is connected to the output pipe 206, the bottom of the support frame 301 is fixedly connected to four feet 102, the top of the base plate 101 is fixedly connected to a bearing frame 104, the side of the bearing frame 104 is fixedly connected to a PLC controller 105, the side of the PLC controller 105 is provided with a control panel 106, the PLC controller 105 can control and adjust the conveying speed of the screw conveyor mechanism and the conveying valve, thereby achieving precise material feeding.
[0029] The working process of this utility model is as follows: When the auxiliary feeding mechanism for a PET foaming extruder designed in this scheme is working, PET material is fed into the feed pipe 307, and then the variable frequency motor 304 drives the screw conveyor 305 to transport the PET material until it comes out from the discharge pipe 306. At this time, the PET material will enter the feeding hopper 201 from the discharge pipe 306. After being transferred in the feeding hopper 201, it will be output through the output pipe 206 again. Before this, the flow sensor can monitor the feeding speed of the material in real time. When the actual feeding speed is detected to deviate from the preset value, the electronic control actuator 204 can quickly adjust the angle of the valve plate 205 according to the feedback signal to restore the feeding speed to the set value until it is adjusted to the specified feeding speed. The connection between the output pipe 206 and the conveying pipe 107 allows the PET material to be quantitatively fed into the reaction chamber 103, thereby completing the feeding.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary feeding mechanism for a PET foaming extruder, comprising a main body (1), characterized in that: A quantitative conveying component (2) is fixedly connected to the top of the main body (1), and a feeding component (3) is provided on the top of the quantitative conveying component (2). The quantitative conveying component (2) includes a feeding bin (201), a mounting plate (303) is fixedly connected to the bottom of the feeding bin (201), an electric actuator (204) is mounted on the side of the mounting plate (303), the electric actuator (204) includes a driver and a flow sensor, a valve plate (205) is fixedly connected to the output end of the driver, and an output pipe (206) is fixedly connected to the bottom of the valve plate (205). The feeding assembly (3) includes a support frame (301), a conveying bin (302) is fixedly connected to the top of the support frame (301), an mounting plate (303) is fixedly connected to the top of the conveying bin (302), a variable frequency motor (304) is installed inside the mounting plate (303), and a spiral conveying rod (305) is fixedly connected to the output end of the variable frequency motor (304).
2. The auxiliary feeding mechanism for a PET foaming extruder according to claim 1, characterized in that, The top of the feeding hopper (201) is provided with a connection port (202), and the valve plate (205) is located inside the valve chamber (203).
3. The auxiliary feeding mechanism for a PET foaming extruder according to claim 1, characterized in that, The top of the conveying chamber (302) is fixedly connected to a feed pipe (307), and the bottom of the conveying chamber (302) is fixedly connected to a discharge pipe (306).
4. The auxiliary feeding mechanism for a PET foaming extruder according to claim 1, characterized in that, The bottom of the support frame (301) is provided with a bearing seat (308), and the support frame (301) is made of stainless steel.
5. The auxiliary feeding mechanism for a PET foaming extruder according to claim 1, characterized in that, The main body (1) includes a base plate (101), on which a reaction chamber (103) is provided. A conveying pipe (107) is fixedly connected to the top of the reaction chamber (103), and the conveying pipe (107) and the output pipe (206) are connected.
6. The auxiliary feeding mechanism for a PET foaming extruder according to claim 5, characterized in that, The bottom of the support frame (301) is fixedly connected to a foot (102), and four feet (102) are provided.
7. The auxiliary feeding mechanism for a PET foaming extruder according to claim 6, characterized in that, A support frame (104) is fixedly connected to the top of the base plate (101), and a PLC controller (105) is fixedly connected to the side of the support frame (104).
8. The auxiliary feeding mechanism for a PET foaming extruder according to claim 7, characterized in that, The PLC controller (105) has a control panel (106) on its side.