Feeding system for PVB film production

Abstract

The utility model discloses a feeding system for PVB (polyvinyl butyral) film production, which comprises a cooling and stirring stock bin for accommodating materials and stirring and cooling the materials and a temperature measuring magnetic frame for receiving the materials released by the cooling and stirring stock bin, and a temperature measuring mechanism for detecting the temperature of the materials inside the cooling and stirring stock bin is arranged on the cooling and stirring stock bin. According to the feeding system for PVB film production, the temperature of raw materials can be effectively controlled, the influence on the work of an extruder is avoided, and the consistency and the yield of products can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVB film production equipment, and specifically relates to a feeding system for PVB film production. Background Art

[0002] In the production process of PVB film, weight is used as the control point for mixing and feeding. The existing technology lacks control over the temperature state of the raw materials, so feeding in this way often causes abnormal situations in the production process.

[0003] When PVB film is produced, multiple materials are premixed to form raw materials, and then the raw materials are fed into the extruder. In the actual production process, the raw material cooling time is short, the raw material temperature fluctuation range is relatively large, and the raw material state is not easy to be stably controlled. After this kind of raw material enters the extruder, it will cause fluctuations in the extruder current, speed and feedback pressure, which will lead to more defective products.

[0004] For example, the patent document with the publication number CN114919152A discloses a PVB film production device, including: an extrusion mechanism, including a first extruder, a second extruder and a third extruder, the first extruder and the third extruder are both used to extrude colored materials, and the second extruder is used to extrude white materials; a distribution mechanism, including a main body and a first flow channel, a second flow channel, a third flow channel and an outflow flow channel arranged on the main body, the first extruder, the second extruder and the third extruder are respectively connected to the inlet of the first flow channel, the inlet of the second flow channel and the inlet of the third flow channel, the outlet of the first flow channel, the outlet of the second flow channel and the outlet of the third flow channel are all connected to the inlet of the outflow flow channel, and the outlet of the first flow channel and the outlet of the third flow channel are respectively located on opposite sides of the outlet of the second flow channel; a die head, the inlet of the die head is connected to the outlet of the outflow flow channel. The technical solution disclosed in the patent document also cannot solve the technical problems recorded above. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a feeding system for PVB film production, the purpose of which is to improve the product qualification rate.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a feeding system for PVB film production, including a cooling and stirring material preparation bin for containing materials and stirring and cooling the materials, and a temperature measuring magnetic frame for receiving materials released from the cooling and stirring material preparation bin, and a temperature measuring mechanism for detecting the temperature of the internal materials is arranged on the cooling and stirring material preparation bin.

[0007] The cooling and stirring material preparation bin comprises a bin body and a stirring mechanism arranged in the bin body, a cooling water channel for cooling water to pass through is arranged on the inner wall of the bin body, and the temperature measuring magnetic frame is located below the bin body.

[0008] The stirring mechanism comprises a stirring shaft and stirring blades arranged on the stirring shaft. The stirring shaft is connected to a driving mechanism, and the driving mechanism is located outside the bin body.

[0009] A discharge port and a discharge valve are arranged at the bottom of the bin body, the discharge valve controls the opening and closing of the discharge port, and the temperature measuring magnetic frame is located below the discharge port.

[0010] The temperature measuring mechanism comprises a temperature measuring probe.

[0011] The temperature measuring magnetic frame comprises a magnetic frame outer frame, a filtering funnel arranged on the magnetic frame outer frame and a magnetic rod arranged below the filtering funnel.

[0012] A plurality of magnetic bars are provided.

[0013] A temperature measuring module is arranged in the filtering funnel.

[0014] The feeding system for producing PVB film of the utility model can realize effective control of raw material temperature, avoid affecting the operation of the extruder, and help to improve product consistency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This specification includes the following drawings, which show the following contents:

[0016] Figure 1 This is a schematic diagram of the structure of the feeding system for the production of PVB film of the utility model;

[0017] Figure 2 This is the front view of the feeding system for the production of PVB film of the utility model;

[0018] Figure 3 This is a top view of the feeding system for the production of PVB film of the utility model;

[0019] Figure 4 It is a structural diagram of the cooling, mixing and preparation bin;

[0020] Figure 5 It is a structural schematic diagram of the temperature measuring magnetic frame;

[0021] Figure 6 This is the main view of the temperature measuring magnetic frame;

[0022] Figure 7 It is a top view of the temperature measuring magnetic frame;

[0023] The markings in the figure are:

[0024] 1. Bin body; 2. Stirring shaft; 3. Stirring blades; 4. Reducer; 5. Driving motor; 6. Protective cover; 7. Controller; 8. Alarm light; 9. Discharge valve; 10. Magnetic frame; 11. Temperature measurement module; 12. Filter funnel; 13. Bottom plate; 14. Magnetic rod; 15. Bin; 16. Dustproof plate. DETAILED DESCRIPTION

[0025] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0026] It should be noted that, in the following embodiments, the “first”, “second” and “third” mentioned do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0027] like Figures 1 to 7 As shown, the utility model provides a feeding system for PVB film production, including a cooling and stirring material preparation bin for containing materials and stirring and cooling the materials, and a temperature measuring magnetic frame for receiving materials released from the cooling and stirring material preparation bin, and a temperature measuring mechanism for detecting the temperature of the internal materials is arranged on the cooling and stirring material preparation bin.

[0028] Specifically, if Figures 1 to 4 As shown, the cooling and stirring material preparation bin includes a bin body 1 and a stirring mechanism arranged in the bin body 1. The bin body 1 is a shell structure with a hollow interior. A cooling water channel for cooling water to pass through is arranged on the inner wall of the bin body 1. The cooling water channel is connected to a water source outside the bin body 1. The temperature measuring magnetic frame is located below the bin body 1. The materials used to produce PVB film enter the bin body 1 for premixing. The raw materials can be fully stirred and cooled in the bin body 1 to form a kneaded material, and the temperature of the raw materials is easy to control. The premixing process can achieve a stable supply of kneaded materials, a clearer raw material ratio, a good formulation of each material, a small error in the amount of addition, and it is not easy to cause pressure fluctuations in the extruder when it is subsequently added to the extruder, avoiding production fluctuations caused by raw material fluctuations after feeding, and reducing the production of internal defective products.

[0029] like Figure 4As shown, the stirring mechanism includes a stirring shaft 2 and a stirring blade 3 arranged on the stirring shaft 2, and the stirring shaft 2 is connected to a driving mechanism, and the driving mechanism is located outside the silo 1. The stirring shaft 2 is arranged horizontally, and a plurality of stirring blades 3 are arranged and all stirring blades 3 are arranged in sequence along the axial direction of the stirring shaft 2. The driving mechanism includes a driving motor 5 and a reducer 4 connected to the driving motor 5. The driving motor 5 is electrically connected to the controller 7, and the output end of the reducer 4 is fixedly connected to one end of the stirring shaft 2. After the driving motor 5 is running, the stirring shaft 2 and the stirring blades 3 thereon are driven to rotate through the reducer 4 to achieve stirring of the material inside the silo 1.

[0030] like Figure 1 As shown, a discharge port and a discharge valve 9 are provided at the bottom of the bin body 1, the discharge valve 9 controls the opening and closing of the discharge port, and the temperature measuring magnetic frame is located below the discharge port. The discharge valve 9 is preferably a pneumatic discharge valve, and the discharge valve 9 is electrically connected to the controller 7 and is controlled by the controller 7.

[0031] Preferably, the temperature measuring mechanism mainly includes a temperature measuring probe, which is arranged inside the bin body 1. The temperature measuring probe is used to detect problems with the material in the bin body 1, and the temperature measuring probe is electrically connected to the controller 7. After the temperature measuring probe detects that the temperature inside the bin body 1 reaches the set value, the controller 7 sends a command to the discharge valve 9, the discharge valve 9 opens the discharge port, and the material in the bin body 1 is released to the temperature measuring magnetic frame.

[0032] like Figures 5 to 7 As shown, the temperature measuring magnetic frame includes a magnetic frame outer frame 10, a filter funnel 12 arranged on the magnetic frame outer frame 10, and a magnetic rod 14 arranged below the filter funnel 12. The filter funnel 12 is used to receive the kneaded material released by the bin body 1. A plurality of magnetic rods 14 are provided, and there is a gap between two adjacent magnetic rods 14 for the kneaded material to pass through. A feed opening is provided at the bottom of the filter funnel 12, and the magnetic rod 14 is located below the feed opening. The magnetic rod 14 is used to absorb the iron substance in the kneaded material, and the kneaded material with the iron substance removed falls into the extruder below.

[0033] like Figures 5 to 7 As shown, the filter funnel 12 is a U-shaped structure, and the filter funnel 12 includes a bottom plate 13 and a dustproof plate 16 arranged on the bottom plate 13. The bottom plate 13 is horizontally arranged on the outer frame 10 of the magnetic frame, and the feed port is set through the bottom plate 13. Two dustproof plates 16 are set, and the dustproof plates 16 are inclined. The two dustproof plates 16 are distributed in a V shape. The lower ends of the two dustproof plates 16 are fixedly connected to the two ends of the bottom plate 13 respectively, and the distance between the upper ends of the two dustproof plates 16 is greater than the distance between the lower ends of the two dustproof plates 16. The kneaded material falls between the two dustproof plates 16, and the dustproof plates 16 can effectively prevent the powder from splashing, avoid waste, and prevent pollution from environmental pollution sources.

[0034] like Figures 5 to 7As shown, a silo 15 is arranged outside the filter funnel 12, and the silo 15 is used to store large pieces of material that cannot be sieved in the filter funnel 12, so as to achieve recycling and avoid waste of raw materials.

[0035] like Figure 5 As shown, a temperature measuring module 11 is provided in the filter funnel 12, and the temperature measuring module 11 mainly includes a thermal imaging thermometer. The thermal imaging thermometer is electrically connected to the controller 7. When the pneumatic discharge valve is opened to discharge the material, the thermal imaging thermometer uses thermal imaging technology to sense the material temperature, and transmits the image to the controller 7. The temperature of an effective number of points can be selected, and the average value is taken for recording, processing, storage and analysis. The temperature measuring module 11 has clear imaging and can monitor the temperature of the fluid in real time. Fluid imaging can be used for data processing to select effective data and solve the problem of raw material temperature control.

[0036] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. The feeding system for PVB film production is characterized by: It includes a cooling and stirring material preparation bin for containing materials and stirring and cooling the materials, and a temperature measuring magnetic frame for receiving materials released from the cooling and stirring material preparation bin. A temperature measuring mechanism for detecting the temperature of the internal materials is arranged on the cooling and stirring material preparation bin; The temperature measuring magnetic frame comprises a magnetic frame outer frame, a filtering funnel arranged on the magnetic frame outer frame and a magnetic rod arranged below the filtering funnel.

2. The feeding system for PVB film production according to claim 1, characterized in that: The cooling and stirring material preparation bin comprises a bin body and a stirring mechanism arranged in the bin body, a cooling water channel for cooling water to pass through is arranged on the inner wall of the bin body, and the temperature measuring magnetic frame is located below the bin body.

3. The feeding system for PVB film production according to claim 2, characterized in that: The stirring mechanism comprises a stirring shaft and stirring blades arranged on the stirring shaft. The stirring shaft is connected to a driving mechanism, and the driving mechanism is located outside the bin body.

4. The feeding system for PVB film production according to claim 2, characterized in that: A discharge port and a discharge valve are arranged at the bottom of the bin body, the discharge valve controls the opening and closing of the discharge port, and the temperature measuring magnetic frame is located below the discharge port.

5. The feeding system for PVB film production according to any one of claims 1 to 4, characterized in that: The temperature measuring mechanism comprises a temperature measuring probe.

6. The feeding system for PVB film production according to any one of claims 1 to 4, characterized in that: A plurality of magnetic bars are provided.

7. The feeding system for PVB film production according to claim 6, characterized in that: A temperature measuring module is arranged in the filtering funnel.

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