Automatic feeding, weighing and discharging homogenizing three-layer co-extrusion infusion film equipment

Abstract

The utility model relates to the production technical field of coextrusion infusion film, specifically relates to a kind of automatic feeding, weighing and discharging homogenization's three-layer coextrusion infusion film equipment.The vacuum suction hopper of the utility model is independently connected with fan, and fan is used to form negative pressure in the vacuum suction hopper to extract material;The top of each vacuum suction hopper is provided with several raw material conveying ports;Temporary storage bucket is located below the vacuum suction hopper, and different components of raw material are stored therein;The bottom of temporary storage bucket is provided with weighing disc;Homogenization equipment is cylindrically arranged, and stirring weightlessness barrel for realizing the mixing of raw material and avoiding weightlessness is arranged inside;Mounting base is located at the bottom of homogenization equipment, and is used to connect the extruder for producing three-layer coextrusion infusion film.It can extract and measure different raw materials through at least three groups of independent vacuum suction hopper and weighing disc with built-in weighing sensor, ensure that each raw material enters production process according to the predetermined proportion and sequence, improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of co-extrusion membrane production technology, specifically to a three-layer co-extrusion membrane production equipment with automatic feeding, weighing, and discharge homogenization. Background Technology

[0002] In the traditional production process of three-layer co-extruded infusion membranes, the raw materials are first processed using drying equipment, then melted and extruded through a multi-layer co-extrusion extruder to form a three-layer melt film through a die, then cast and cooled to form the final product, and finally wound up by a winding machine and subjected to slitting and other post-processing to obtain the finished product. However, there are many problems in the raw material processing stage. As reflected in the feeding device for stretch film production disclosed in Chinese Patent Publication No. CN222592807U, the raw material input method is singular, and the mixing of multiple raw materials can easily lead to cross-contamination, affecting product quality. Moreover, it is difficult to quickly switch to a backup silo when the raw material silo is insufficient, affecting the continuity of production. Traditional weighing methods are not very stable and are easily affected by external interference, resulting in large errors in raw material ratios, which affect the performance of co-extruded infusion membranes. In addition, negative pressure during raw material transportation causes pressure fluctuations, which can cause raw material blockage and uneven transportation speed, reducing production efficiency and stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a three-layer co-extrusion membrane device for automatic feeding, weighing and discharge homogenization.

[0004] The technical solution adopted in this utility model is as follows: An automatic feeding, weighing, and homogenizing three-layer co-extrusion membrane device for liquid delivery includes, from top to bottom, a vacuum suction hopper, a temporary storage tank, a homogenizing device, and a mounting base, wherein: The vacuum suction hopper is provided in at least three sets, and each set of vacuum suction hoppers is independently connected to a blower. The blower is used to create negative pressure in the vacuum suction hopper for material suction. Each set of vacuum suction hoppers is provided with several raw material conveying ports at the top. The temporary storage bin, located below the vacuum hopper, stores raw materials of different components; a weighing pan is installed at the bottom of the temporary storage bin. The homogenization equipment is columnar in shape and contains a mixing tank inside to mix the raw materials and prevent weight loss. The mounting base, located at the bottom of the homogenization equipment, is used to connect to the extruder used for producing three-layer co-extruded infusion films.

[0005] This technical solution utilizes at least three independent vacuum hoppers equipped with their own fans. The fans create negative pressure within the hoppers, drawing materials from the material conveying ports connected to them and leading to different material silos. This enables rapid input and initial separation management of various raw materials. The extracted materials fall into a temporary storage tank below. The weighing sensor built into the weighing pan at the bottom of the temporary storage tank measures the weight of the raw materials, allowing for the determination of the raw material proportions based on the formula. Subsequently, the raw materials enter a columnar mixing and loss-in-weight tank inside the homogenization equipment, where they are thoroughly mixed while avoiding weight loss, ensuring uniformity and quality of mixing.

[0006] In addition, the three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization proposed above according to this utility model may also have the following additional technical features: According to one embodiment of the present invention, the raw material conveying port is connected to the raw material conveying pipe, and the raw material conveying pipe is connected to different raw material bins.

[0007] In this technical solution, raw materials are extracted from the corresponding raw material bins according to the different types and proportions required for the production of three-layer co-extruded infusion membranes, ensuring that each raw material can enter the vacuum suction hopper in a predetermined proportion and order.

[0008] According to one embodiment of the present invention, the fan is located on the side of the powder base of the equipment, and the fan is also provided with a silencer installation port.

[0009] This technical solution, by reserving a silencer installation port, allows for flexible installation of a suitable silencer according to the actual noise situation. The silencer effectively absorbs and reduces the noise energy generated during fan operation by utilizing the acoustic principle of the silencer, thereby reducing noise interference to operators and the surrounding environment.

[0010] According to one embodiment of the present invention, a pressure relief valve installation port is provided at the raw material conveying port.

[0011] In this technical solution, during the raw material conveying process, the suction action of the blower creates a certain negative pressure in the raw material conveying pipeline and vacuum suction hopper. Pressure fluctuations can affect the stability of raw material conveying and may even lead to problems such as material blockage and uneven conveying speed. The pressure relief valve automatically opens when the internal pressure exceeds a set safety value, releasing excess pressure and ensuring stable raw material conveying. Once the pressure returns to normal, the pressure relief valve closes to prevent raw material leakage.

[0012] According to one embodiment of the present invention, the weighing pan has a built-in weighing sensor for proportioning raw materials.

[0013] This technical solution uses a built-in weighing sensor, which not only saves equipment space and improves weighing stability, but also reduces the interference of external factors on the weighing results.

[0014] According to one embodiment of the present invention, the side of the homogenization equipment is also provided with an electrical control cabinet, which is connected to the fan, weighing pan, mixing loss-in-weight tank and pressure relief valve respectively.

[0015] In this technical solution, a pressure sensor is installed on the raw material conveying pipeline, and the electrical control cabinet monitors the pressure signal in real time. When the pressure is abnormal, the pressure relief valve is opened or closed. When the pressure is normal, the electrical control cabinet controls the start and stop of the blower and its operating power, thereby adjusting the extraction speed and conveying volume of the raw materials to ensure that different raw materials enter the vacuum suction hopper in proportion. The weight data of the raw materials is fed back by the weighing plate to obtain the proportion of the three-layer co-extrusion liquid conveying membrane. The electrical control cabinet controls the mixing loss-in-weight tank to mix thoroughly and avoid weight loss, ensuring the uniformity and quality of the mixing.

[0016] Compared with the prior art, this utility model has the following advantages: (1) Through at least three independent vacuum suction hoppers and a weighing pan with built-in weighing sensors, different raw materials can be extracted and measured, and the raw materials can be mixed according to the formula ratio to ensure that each raw material enters the production process in a predetermined proportion and order, thereby improving production efficiency and product quality.

[0017] (2) A silencer installation port is reserved on the side of the fan, and the silencer can be flexibly installed according to the actual noise situation, which can effectively reduce the noise of the fan operation, improve the working environment of the operators, and reduce the impact on the surrounding environment.

[0018] (3) A pressure relief valve is installed at the raw material conveying port. When the pressure in the system is abnormal, it will be automatically adjusted to ensure stable raw material conveying, avoid blockage and uneven speed, and prevent raw material leakage. Attached Figure Description

[0019] Figure 1 This is the front view of this utility model.

[0020] Figure 2 This is a side view of the present invention.

[0021] In the diagram: 1. Vacuum hopper; 2. Raw material conveying port; 3. Temporary storage tank; 4. Weighing pan; 5. Homogenization equipment; 6. Mixing loss-in-weight tank; 7. Mounting base; 8. Electrical control cabinet; 9. Fan. Detailed Implementation

[0022] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1 like Figures 1 to 2 As shown, this embodiment provides an automatic feeding, weighing, and homogenizing three-layer co-extrusion membrane conveying device, including a vacuum suction hopper 1, a temporary storage tank 3, a homogenizing device 5, and a mounting base 7 arranged sequentially from top to bottom, wherein: The vacuum suction hopper 1 is provided in at least three sets. Each set of vacuum suction hopper 1 is independently connected to a blower 9. The blower 9 is used to create negative pressure in the vacuum suction hopper 1 for material extraction. Each set of vacuum suction hopper 1 is provided with several raw material conveying ports 2 at the top. Temporary storage bucket 3 is located below vacuum suction hopper 1 and stores raw materials of different components; a weighing pan 4 is provided at the bottom of temporary storage bucket 3. The homogenizing device 5 is arranged in a column shape, and its interior is equipped with a mixing and weight loss tank 6 to achieve mixing of raw materials and avoid weight loss; Mounting base 7, located at the bottom of homogenization equipment 5, is used to connect to the extruder for producing three-layer co-extruded infusion films.

[0024] like Figures 1 to 2 As shown, this technical solution uses at least three independent vacuum suction hoppers 1 each equipped with a blower 9. The blower 9 creates negative pressure inside the hopper, drawing material from the raw material conveying port 2 connected to it and leading to different raw material bins, thus achieving rapid input and initial separation management of various raw materials. The extracted raw materials fall into the lower temporary storage bin 3. The weighing sensor built into the weighing pan 4 at the bottom of the temporary storage bin 3 can measure the weight of the raw materials and complete the raw material ratio according to the formula. Then, the raw materials enter the homogenization equipment 5 and are arranged in a columnar stirring loss-in-weight tank 6, where they are fully mixed and weight loss is avoided, ensuring the uniformity and quality of the mixture.

[0025] In addition, the three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization proposed above according to this utility model may also have the following additional technical features: According to one embodiment of the present invention, the raw material conveying port 2 is connected to the raw material conveying pipe, and the raw material conveying pipe is connected to different raw material bins.

[0026] In this technical solution, raw materials are extracted from the corresponding raw material bins according to the different types and proportions required for the production of three-layer co-extruded infusion membranes, ensuring that each raw material can enter the vacuum suction hopper 1 in a predetermined proportion and order.

[0027] According to one embodiment of the present invention, the fan 9 is located on the side of the powder base of the equipment, and the fan 9 is also provided with a silencer installation port.

[0028] This technical solution, by reserving a silencer installation port, allows for flexible installation of a suitable silencer according to the actual noise situation. The silencer's acoustic principle effectively absorbs and reduces the noise energy generated when the fan 9 is running, reducing noise interference to operators and the surrounding environment.

[0029] According to one embodiment of the present invention, a pressure relief valve is installed at the raw material conveying port 2.

[0030] In this technical solution, during the raw material conveying process, the suction action of the blower 9 creates a certain negative pressure in the raw material conveying pipeline and vacuum suction hopper 1. Pressure fluctuations can affect the stability of raw material conveying and may even lead to problems such as material blockage and uneven conveying speed. The pressure relief valve automatically opens when the internal pressure exceeds a set safety value, releasing excess pressure and ensuring stable raw material conveying. Once the pressure returns to normal, the pressure relief valve closes to prevent raw material leakage.

[0031] According to one embodiment of the present invention, the weighing pan 4 is equipped with a weighing sensor for proportioning raw materials.

[0032] This technical solution uses a built-in weighing sensor, which not only saves equipment space and improves weighing stability, but also reduces the interference of external factors on the weighing results.

[0033] According to one embodiment of the present invention, the homogenization device 5 is further provided with an electrical control cabinet 8 on its side, and the electrical control cabinet 8 is connected to the fan 9, the weighing pan 4, the mixing loss-in-weight tank and the pressure relief valve respectively.

[0034] In this technical solution, a pressure sensor is installed on the raw material conveying pipeline, and the electrical control cabinet 8 monitors the pressure signal in real time. When the pressure is abnormal, the pressure relief valve is opened or closed. When the pressure is normal, the electrical control cabinet 8 controls the start and stop of the blower 9 and its operating power, thereby adjusting the extraction speed and conveying volume of the raw materials to ensure that different raw materials enter the vacuum suction hopper 1 in proportion. The weight data of the raw materials is fed back through the weighing pan 4 to obtain the proportion of the three-layer co-extrusion liquid conveying membrane. The electrical control cabinet 8 controls the mixing loss-in-weight tank to mix thoroughly and avoid weight loss, ensuring the uniformity and quality of mixing.

[0035] The usage process of the above embodiments is as follows: Figures 1 to 2As shown, during operation, the electrical control cabinet 8 starts and controls each blower 9 to form negative pressure in the corresponding vacuum suction hopper 1 according to the production requirements of the three-layer co-extrusion liquid conveying membrane. Raw materials are drawn from different raw material bins through the raw material conveying pipe and into at least three independent vacuum suction hoppers 1 through the raw material conveying port 2, realizing the rapid input and initial separation of multiple raw materials. If the pressure in the conveying pipe and suction hopper exceeds the safety value, the pressure relief valve at the raw material conveying port 2 automatically opens to release the pressure and closes to prevent leakage after stabilization. The raw materials fall into the lower temporary storage tank 3, and the weighing sensor built into the weighing pan 4 at the bottom measures the weight. The electrical control cabinet 8 is used to control the raw material ratio. The ratiod raw materials enter the columnar stirring loss-in-weight tank 6 inside the homogenization equipment 5. The electrical control cabinet 8 controls it to be fully mixed and avoid weight loss, ensuring uniformity and quality. During this period, the electrical control cabinet 8 monitors the pressure sensor signal of the raw material conveying pipeline in real time. When there is an abnormality, it controls the pressure relief valve. When the pressure is normal, it adjusts the start / stop and power of the blower 9 to ensure that the raw materials enter the subsequent stages in proportion and order, achieving efficient and stable production.

[0036] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A three-layer co-extrusion membrane device for liquid delivery with automatic feeding, weighing, and discharge homogenization, characterized in that, It includes, from top to bottom, a vacuum suction hopper (1), a temporary storage tank (3), a homogenization device (5), and a mounting base (7), wherein: The vacuum suction hopper (1) is provided in at least three sets. Each set of vacuum suction hopper (1) is independently connected to a blower (9). The blower (9) is used to create negative pressure in the vacuum suction hopper (1) for material extraction. Each set of vacuum suction hopper (1) is provided with several raw material conveying ports (2) at the top. A temporary storage bucket (3) is located below the vacuum suction hopper (1) and stores raw materials of different components; a weighing pan (4) is provided at the bottom of the temporary storage bucket (3); The homogenizing equipment (5) is columnar in shape and has a mixing tank (6) inside to achieve mixing of raw materials and avoid weight loss. The mounting base (7) is located at the bottom of the homogenization equipment (5) and is used to connect to the extruder for producing three-layer co-extruded infusion films.

2. The three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization as described in claim 1, characterized in that, The raw material conveying port (2) is connected to the raw material conveying pipe, which is connected to different raw material silos.

3. The three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization as described in claim 1, characterized in that, The fan (9) is located on the side of the equipment powder base, and the fan (9) is also provided with a silencer installation port.

4. The three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization as described in claim 1, characterized in that, The raw material conveying port (2) is provided with a pressure relief valve installation port.

5. The three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization as described in claim 1, characterized in that, The weighing pan (4) has a built-in weighing sensor for proportioning raw materials.

6. The three-layer co-extrusion membrane equipment for liquid delivery with automatic feeding, weighing, and discharge homogenization as described in claim 4, characterized in that, The homogenization equipment (5) is also equipped with an electrical control cabinet (8) on its side. The electrical control cabinet (8) is connected to the fan (9), the weighing pan (4), the mixing loss-in-weight tank (6), and the pressure relief valve.

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