Pvb wedge film feed system

Abstract

The utility model relates to PVB wedge film production technical field, and disclose PVB wedge film feeding system, including raw material processing subassembly, stirring storage subassembly, weighing measurement subassembly, mixed storage subassembly and processing production subassembly, raw material processing subassembly is connected with stirring storage subassembly, stirring storage subassembly is connected with weighing measurement subassembly, weighing measurement subassembly is connected with mixed storage subassembly, and mixed storage subassembly is connected with processing production subassembly, raw material processing subassembly is used for carrying out crushing and conveying treatment to raw material, the whole system realizes the function of automatic mixing and feeding through the cooperation of each component, from the vacuum feeding of resin powder, the processing and conveying of crushed material, to the mixing, measurement of various materials in the stirring kettle, to the final formula material conveying to the extrusion of double screw extruder and the extrusion into PVB wedge film, the whole process is high in degree of automation, reduces manual intervention, improves production efficiency and the uniformity of product quality.

Description

Technical Field

[0001] This utility model relates to the field of PVB wedge film production technology, specifically a PVB wedge film feeding system. Background Technology

[0002] Polyvinyl butyral (PVB) film is mainly used in laminated glass to give it functions such as safety, heat insulation, noise control and UV protection. It is widely used in the automotive, construction and other industries, and the demand is huge. Since PVB raw material is a formulation material, it is made of resin powder, crushed material and plasticizer in a certain proportion. Each component needs to be in a precise proportion and is mixed by a specific mixing equipment before use.

[0003] In the existing production process of PVB (polyvinyl butyral) wedge film, the physical properties of PVB raw material pose a severe challenge to the stability of the feeding system. PVB raw material has significant temperature sensitivity and flowability defects. When the ambient temperature exceeds 40°C, the raw material is prone to agglomeration, leading to pipeline blockage. At the same time, if there is non-flowing material at the bottom of the mixing and storage tank, it will form a hard deposit layer due to adhesion, causing difficulty in feeding or even complete blockage. Therefore, a PVB wedge film feeding system is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a PVB wedge film feeding system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PVB wedge film feeding system, comprising a raw material processing component, a stirring and storage component, a weighing and metering component, a mixing and storage component, and a processing and production component;

[0006] The raw material processing component is connected to the stirring and storage component, the stirring and storage component is connected to the weighing and metering component, the weighing and metering component is connected to the mixing and storage component, and the mixing and storage component is connected to the processing and production component.

[0007] The raw material processing component is used to crush and convey the raw materials.

[0008] The stirring and storage assembly is used for stirring and temporarily storing raw materials;

[0009] The weighing and metering component is used to measure the amount of each raw material added.

[0010] The mixing and storage component is used to mix the raw materials evenly according to the formula ratio and to temporarily store the mixture;

[0011] The processing and production components are used to process the mixed raw materials into products;

[0012] The raw material processing assembly includes a first blower, a condenser, a crusher, a second blower, a first vacuum feeder, and a ton bag station;

[0013] The first blower is used to provide positive pressure airflow for positive pressure conveying of raw materials;

[0014] The condenser is used to cool the airflow conveying the crushed material;

[0015] The crusher is used to crush raw materials to the required particle size;

[0016] The second fan is used to assist in the positive pressure conveying of raw materials;

[0017] The first vacuum feeder is used for vacuum negative pressure feeding of resin powder;

[0018] The ton bag station is used to store resin powder raw materials.

[0019] Preferably, as described above, the first fan outlet is connected to the condenser inlet, the condenser outlet is connected to the crusher inlet, and the crusher outlet is connected to the second fan inlet.

[0020] The air inlet of the first vacuum feeder is connected to the discharge end of the ton bag station.

[0021] Preferably, the first fan includes a casing, a filter screen is provided on the air inlet side of the casing, and a disassembly assembly is provided on one side of the filter screen, the disassembly assembly being used for disassembling and maintaining the filter screen;

[0022] The disassembly assembly includes several guide rods. One end of each guide rod is connected to a limit block by bolts. A fixing ring is connected to the outer side of each guide rod by a linear bearing. Several protrusions are fixed to the inner wall of the fixing ring.

[0023] Preferably, the disassembly assembly further includes several connecting brackets, with locking blocks hinged to the inner side of each connecting bracket, and a second spring connecting one side of each locking block to the housing.

[0024] Preferably, as described above, a fixing frame is fixed to the outside of the filter screen, a plurality of locking grooves are opened on the outside of the fixing frame, a sealing ring is fixed to one side of the fixing frame, and the sealing ring is clamped between the fixing frame and the housing;

[0025] When the lock block is engaged inside the lock groove, the fixing frame and the filter screen are in the installed state; when the lock block is removed from the lock groove, the fixing frame and the filter screen are in the disassembled state.

[0026] Preferably, as described above, a first spring is sleeved on the outer side of the guide rod, and the two sides of the first spring are respectively connected to the fixing ring and one side of the housing. The guide rod and the connecting frame are both fixed to the surface of the housing.

[0027] During the movement of the fixed ring, when the protrusion contacts the locking block, the locking block rotates around the hinge point.

[0028] Preferably, the above-mentioned mixing and storage assembly includes a cyclone separator, two first mixing tanks, a vibrating screen, a third blower, a fourth blower, a gate valve, a filter, two second mixing tanks, a second vacuum feeder, and a pneumatic butterfly valve.

[0029] The cyclone separator feed end is connected to the second blower discharge end, the cyclone separator discharge end is connected to the first mixing tank feed end, the vibrating screen is located at the first mixing tank discharge end, the first mixing tank discharge end is connected to the third blower feed end, the third blower and the fourth blower are connected in series, the fourth blower discharge end is connected to another first mixing tank feed end, and the slide gate valve is installed at the first mixing tank discharge end;

[0030] The cyclone separator is used for gas-solid separation during positive pressure conveying of crushed materials;

[0031] The first mixing vessel is used to mix the crushed material;

[0032] The vibrating screen is used to screen out clumps of material that still exist after stirring;

[0033] The third and fourth fans are used for series positive pressure conveying between the two first mixing tanks;

[0034] The slide gate valve is used to open and close the material discharge valve;

[0035] The filter is used for gas-powder separation during vacuum conveying of resin powder;

[0036] The second stirring vessel is used for stirring the resin powder;

[0037] The second vacuum feeder is used for series vacuum conveying between the two second mixing vessels;

[0038] The pneumatic butterfly valve is used to control the addition of resin powder.

[0039] Preferably, the weighing and metering assembly described above includes a third stirring vessel and a fourth stirring vessel;

[0040] The feed end of the third mixing tank is connected to the discharge end of the second mixing tank, and the feed end of the fourth mixing tank is connected to the discharge end of the fourth blower.

[0041] The third stirring vessel is used for temporary storage of resin powder;

[0042] The fourth mixing vessel is used for temporary storage of the crushed material after screening.

[0043] Preferably, the above-mentioned hybrid storage assembly includes a first screw conveyor, a fifth mixing vessel, a metering tank, a sixth mixing vessel, and a second screw conveyor;

[0044] The feed end of the first screw conveyor is connected to the discharge end of the fourth mixing vessel, the discharge ends of the third mixing vessel and the first screw conveyor are both connected to the feed end of the fifth mixing vessel, the discharge ends of the fifth mixing vessel and the metering tank are both connected to the feed end of the sixth mixing vessel, and the discharge end of the sixth mixing vessel is connected to the feed end of the second screw conveyor.

[0045] The first screw conveyor is used to transport the crushed material in the fourth mixing vessel to the fifth mixing vessel;

[0046] The fifth mixing vessel is used to mix crushed material, resin powder, and liquid.

[0047] The metering tank is used for metering and adding liquid formulation materials;

[0048] The sixth mixing vessel is used to store the mixed final formula materials;

[0049] The second screw conveyor is used to transport the mixed formula from the sixth mixing vessel to the processing production component.

[0050] Preferably, the aforementioned processing and production components include a hopper and a twin-screw extruder;

[0051] The discharge end of the second screw conveyor is connected to the feed end of the hopper, and the discharge end of the hopper is connected to the feed end of the twin-screw extruder;

[0052] The hopper is used to store the ingredients to be processed.

[0053] The twin-screw extruder is used to extrude the formulation into PVB wedge film;

[0054] A notification unit is provided on the inner side of the hopper;

[0055] The prompting unit is used to provide an alarm prompt when the hopper is low on material or full.

[0056] Weighing sensors are installed on the first, second, third, fourth, fifth, and sixth mixing vessels, and the weighing sensors are used to monitor the weight of the material level.

[0057] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0058] I. By setting up a second, first, third, fourth, fifth, and sixth mixing tank, as well as a metering tank, and in conjunction with weighing sensors and other equipment, the addition of resin powder, crushed material, and liquid formulation materials can be measured and controlled. Simultaneously, the first and second vacuum feeders ensure stable conveying of resin powder; the first, second, third, and fourth blowers achieve positive pressure conveying of crushed material; and the first and second screw conveyors ensure stable material transfer, ensuring continuous and stable production. This solves problems such as personnel costs, maintenance costs, and raw material waste caused by material blockage. During material conveying and processing, the cyclone separator performs gas-solid separation during the positive pressure conveying of crushed material, and the vibrating screen removes agglomerated material. These measures reduce the risk of material blockage in pipelines or equipment, decrease the manpower required for unblocking, equipment maintenance, and raw material losses due to blockage, and improve production efficiency and economic benefits.

[0059] Second, through the coordinated operation of its components, the entire system achieves automatic mixing and feeding. From vacuum feeding of resin powder, processing and conveying of crushed material, to mixing and metering of various materials in the mixing tank, and finally conveying the final formulation to the twin-screw extruder to extrude into PVB wedge film, the entire process is highly automated, reduces manual intervention, and improves production efficiency and product quality uniformity.

[0060] 3. When a large amount of impurities adsorbed on the surface of the filter screen need to be cleaned, simply push the fixing ring along the guide rod and use the protrusion to squeeze the locking block to make it leave the locking groove. The filter screen can then be easily removed from the housing for maintenance or replacement. The operation is simple and greatly improves the efficiency of filter screen cleaning, reducing the occurrence of blower performance being affected by filter screen blockage. Place the maintained or replaced filter screen, along with the fixing bracket, in the appropriate position and insert it into the inside of the fixing ring. Push the fixing bracket to make the locking block engage inside the locking groove. The engaging structure ensures that the filter screen is firmly installed and will not loosen or fall off due to vibration or other reasons during blower operation, thus ensuring the stable operation of the blower system. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 This is a schematic diagram of the material supply process of this utility model;

[0063] Figure 2This is a schematic diagram of the raw material processing component of this utility model;

[0064] Figure 3 This is a schematic diagram of the stirring and storage component of this utility model;

[0065] Figure 4 This is a schematic diagram of the weighing, mixing, and processing components of this utility model;

[0066] Figure 5 This is a schematic diagram of the filter screen structure of this utility model;

[0067] Figure 6 This is a schematic diagram of the structure of the first spring in this utility model;

[0068] Figure 7 This is a schematic diagram of the right-side cross-sectional structure of the fixing ring of this utility model;

[0069] Figure 8 This is a cross-sectional structural diagram of the locking block of this utility model.

[0070] Explanation of reference numerals in the attached drawings: 101, First blower; 102, Condenser; 103, Crusher; 104, Second blower; 201, First vacuum feeder; 202, Ton bag station; 105, Cyclone separator; 106, First mixing vessel; 107, Vibrating screen; 108, Third blower; 109, Fourth blower; 110, Slide valve; 203, Filter; 204, Second mixing vessel; 205, Second vacuum feeder; 206, Pneumatic butterfly valve; 111, Third mixing vessel 112. Fourth mixing vessel; 113. First screw conveyor; 114. Fifth mixing vessel; 115. Metering tank; 116. Sixth mixing vessel; 117. Second screw conveyor; 118. Hopper; 119. Twin-screw extruder; 3. Disassembly assembly; 31. Fixing ring; 32. Locking groove; 33. Locking block; 34. Limiting block; 35. Guide rod; 36. First spring; 37. Fixing frame; 38. Protrusion; 39. Connecting frame; 310. Second spring; 4. Filter screen. Detailed Implementation

[0071] 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.

[0072] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0073] Example

[0074] Please see Figure 1-8 This utility model provides a technical solution: a PVB wedge film feeding system, including a raw material processing component, a stirring and storage component, a weighing and metering component, a mixing and storage component, and a processing and production component; the raw material processing component is connected to the stirring and storage component, the stirring and storage component is connected to the weighing and metering component, the weighing and metering component is connected to the mixing and storage component, and the mixing and storage component is connected to the processing and production component;

[0075] The raw material processing assembly is used for crushing and conveying raw materials. The assembly includes a first blower 101, a condenser 102, a crusher 103, a second blower 104, a first vacuum feeder 201, and a ton bag station 202. The first blower 101 provides positive pressure airflow for positive pressure conveying of the raw materials. The condenser 102 cools the airflow conveying the crushed material. The crusher 103 crushes the raw materials to the required particle size. The second blower 104 assists in the positive pressure conveying of the raw materials. The first vacuum feeder 201 is used for vacuum negative pressure feeding of resin powder. Resin powder is extracted from the ton bag station 202 through negative pressure airflow to prevent dust spillage. The ton bag station 202 stores resin powder raw materials in large packages, using negative pressure for feeding. Both the first blower 101 and the second blower 104 are positive pressure conveying blowers, and the condenser 102 is a water-cooled air condenser.

[0076] The first vacuum feeder 201, ton bag station 202, filter 203, second mixing tank 204, second vacuum feeder 205, and pneumatic butterfly valve 206 are resin powder feeding units for processing resin powder. The first blower 101, condenser 102, crusher 103, second blower 104, cyclone separator 105, first mixing tank 106, vibrating screen 107, third blower 108, fourth blower 109, gate valve 110, third mixing tank 111, fourth mixing tank 112, first screw conveyor 113, fifth mixing tank 114, metering tank 115, sixth mixing tank 116, second screw conveyor 117, hopper 118, and twin screw extruder 119 are crushing and conveying units for processing crushed materials.

[0077] The outlet of the first blower 101 is connected to the inlet of the condenser 102, the outlet of the condenser 102 is connected to the inlet of the crusher 103, and the outlet of the crusher 103 is connected to the inlet of the second blower 104; the inlet of the first vacuum feeder 201 is connected to the outlet of the ton bag station 202.

[0078] Positive pressure conveying generates positive pressure airflow from the first fan 101, which is cooled by the condenser 102 to prevent heat melting, and carries the crushed material into the crusher 103. The second fan 104 pressurizes and conveys the material to the cyclone separator 105.

[0079] The first fan 101 includes a casing, with a filter screen 4 on the air inlet side of the casing. A disassembly assembly 3 is provided on one side of the filter screen 4. The disassembly assembly 3 is used for disassembling and maintaining the filter screen 4. The disassembly assembly 3 includes several guide rods 35. One end of the guide rod 35 is connected to a limit block 34 by bolts. A fixing ring 31 is connected to the outside of the guide rod 35 by a linear bearing. Several protrusions 38 are fixed on the inner wall of the fixing ring 31. When the locking block 33 is engaged in the inner side of the locking groove 32, the fixing frame 37 and the filter screen 4 are in the installation state. The protrusions 38 and the locking block 33 are provided with arc surfaces on opposite sides.

[0080] The disassembly assembly 3 also includes several connecting brackets 39. A locking block 33 is hinged to the inner side of the connecting bracket 39. A second spring 310 is connected between one side of the locking block 33 and the housing. A fixing bracket 37 is fixed to the outer side of the filter screen 4. Several locking grooves 32 are opened on the outer side of the fixing bracket 37. A sealing ring is fixed to one side of the fixing bracket 37. The sealing ring is clamped between the fixing bracket 37 and the housing. When the locking block 33 is engaged with the inner side of the locking groove 32, the fixing bracket 37 and the filter screen 4 are in the installed state. When the locking block 33 is removed from the inner side of the locking groove 32, the fixing bracket 37 and the filter screen 4 are in the disassembled state.

[0081] A first spring 36 is sleeved on the outside of the guide rod 35. The two sides of the first spring 36 are respectively connected to the fixed ring 31 and one side of the housing. The guide rod 35 and the connecting frame 39 are both fixed to the surface of the housing. During the movement of the fixed ring 31, when the protrusion 38 contacts the locking block 33, the locking block 33 rotates around the hinge point. During the movement of the fixed ring 31, when the protrusion 38 contacts the locking block 33, the protrusion 38 squeezes the locking block 33, causing the locking block 33 to rotate around the hinge point and leave the inner side of the locking groove 32. At this time, the fixing frame 37 and the filter screen 4 are in a detachable state. The filter screen 4 can be removed from the housing for maintenance or replacement. The filter screen 4 prevents dust and impurities in the outside air from entering the inner side of the condenser 102. The filter screen 4 can be removed and installed by one person. First, push the fixed ring 31 with both hands to fully compress the first spring 36. Then, continue to press the fixed ring 31 with one hand and remove the filter screen 4 with the other hand.

[0082] A mixing and storage assembly for mixing and temporarily storing raw materials;

[0083] The mixing and storage assembly includes a cyclone separator 105, two first mixing vessels 106, a vibrating screen 107, a third blower 108, a fourth blower 109, a gate valve 110, a filter 203, two second mixing vessels 204, a second vacuum feeder 205, and a pneumatic butterfly valve 206. The inlet end of the cyclone separator 105 is connected to the outlet end of the second blower 104, and the outlet end of the cyclone separator 105 is connected to the inlet end of the first mixing vessel 106. The vibrating screen 107 is located at the outlet end of the first mixing vessel 106, and the outlet end of the first mixing vessel 106 is connected to the inlet end of the third blower 108. The third blower 108 and the fourth blower 109 are connected in series, and the outlet end of the fourth blower 109 is connected to the inlet end of the other first mixing vessel 106. The gate valve 110 is installed at the outlet end of the first mixing vessel 106.

[0084] Cyclone separator 105 is used for gas-solid separation during positive pressure conveying of crushed material. Cyclone separator 105 utilizes centrifugal force to achieve gas-solid separation. The crushed material falls into the first mixing vessel 106, which is used to agitate the crushed material. The first mixing vessel 106 agitates the crushed material to prevent agglomeration. Vibrating screen 107 is used to remove agglomerated material that still exists after agitation. The discharged material passes through vibrating screen 107 to remove agglomerated material.

[0085] The third blower 108 and the fourth blower 109 are used for series positive pressure conveying between the two first mixing tanks 106; the third blower 108 is a blowing blower, the fourth blower 109 is a conveying blower, the slide valve 110 is used for opening and closing the discharge; the slide valve 110 controls the opening and closing of the discharge, and the filter 203 is used for gas-powder separation in the vacuum conveying of resin powder; it separates gas and resin powder in vacuum conveying to ensure unobstructed airflow.

[0086] The second mixing vessel 204 is used to mix the resin powder; the second vacuum feeder 205 is used to perform series vacuum conveying between the two second mixing vessels 204; the pneumatic butterfly valve 206 is used to control the feeding of resin powder. The second mixing vessel 204 mixes the resin powder, the pneumatic butterfly valve 206 controls the feeding amount, and the second vacuum feeder 205 realizes the negative pressure transfer of resin powder between the mixing vessels to reduce oxygen contact.

[0087] Weighing and metering components are used to measure the amount of each raw material added.

[0088] The weighing and metering assembly includes a third mixing vessel 111 and a fourth mixing vessel 112. The feed end of the third mixing vessel 111 is connected to the discharge end of the second mixing vessel 204, and the feed end of the fourth mixing vessel 112 is connected to the discharge end of the fourth blower 109. The third mixing vessel 111 is used for temporary storage of resin powder. The weight of the resin powder is monitored in real time by a weighing sensor and temporarily stored according to the formula. The fourth mixing vessel 112 is used for temporary storage of crushed material after screening. The crushed material after weighing is buffered. The weighing sensor ensures that the feeding amount matches the preset ratio. The weighing data is fed back to the control module, and the valve opening is dynamically adjusted to achieve accurate feeding.

[0089] A mixing and storage component is used to mix the raw materials evenly according to the formula ratio and to temporarily store the mixture;

[0090] The mixed storage assembly includes a first screw conveyor 113, a fifth mixing vessel 114, a metering tank 115, a sixth mixing vessel 116, and a second screw conveyor 117. The feed end of the first screw conveyor 113 is connected to the discharge end of the fourth mixing vessel 112. The discharge ends of the third mixing vessel 111 and the first screw conveyor 113 are both connected to the feed end of the fifth mixing vessel 114. The discharge ends of the fifth mixing vessel 114 and the metering tank 115 are both connected to the feed end of the sixth mixing vessel 116. The discharge end of the sixth mixing vessel 116 is connected to the feed end of the second screw conveyor 117.

[0091] The first screw conveyor 113 is used to convey the crushed material in the fourth mixing vessel 112 to the fifth mixing vessel 114; the first screw conveyor 113 is equipped with a water-cooled jacket, and the fifth mixing vessel 114 receives the crushed material, resin powder and liquid additive from the third mixing vessel 111 and the metering tank 115.

[0092] The fifth mixing vessel 114 is used to mix crushed material, resin powder, and liquid; the metering tank 115 is used to meter and add liquid formulation materials; the sixth mixing vessel 116 is used to store the mixed final formulation materials; the sixth mixing vessel 116 receives the initial mixture from the fifth mixing vessel 114, improves uniformity, and temporarily stores the mixture; the second screw conveyor 117 is used to transport the mixed formulation materials from the sixth mixing vessel 116 to the processing production components; the second screw conveyor 117 is equipped with a water-cooled jacket to uniformly transport the matured material to the hopper 118; the second screw conveyor 117 is matched to the extruder requirements through frequency conversion control.

[0093] A processing and production component is used to process the mixed raw materials into products; the processing and production component includes a hopper 118 and a twin-screw extruder 119.

[0094] The discharge end of the second screw conveyor 117 is connected to the feed end of the hopper 118, and the discharge end of the hopper 118 is connected to the feed end of the twin-screw extruder 119. The hopper 118 is used to store the formulation material to be processed. The twin-screw extruder 119 is used to extrude the formulation material into a PVB wedge film. An alarm unit is provided inside the hopper 118. The alarm unit is used to provide an alarm when the hopper 118 is low on material or full. The alarm unit can be an ultrasonic or capacitive sensor, which triggers an audible and visual alarm when the hopper is low on material or full.

[0095] Weighing sensors are installed on the first mixing vessel 106, the second mixing vessel 204, the third mixing vessel 111, the fourth mixing vessel 112, the fifth mixing vessel 114, and the sixth mixing vessel 116. The weighing sensors are used to monitor the weight of the material level. A control module is provided on one side of the twin-screw extruder 119. The control module is used to control the PVB wedge film feeding system as a whole. The control module coordinates the start and stop sequence of each component, monitors the data from the weighing sensors, and adjusts the fan speed, valve opening, and mixing speed.

[0096] Working principle: The resin powder raw material stored in the ton bag station 202 is fed by the first vacuum feeder 201 under vacuum negative pressure. The air inlet of the first vacuum feeder 201 is connected to the discharge end of the ton bag station 202. The resin powder is sucked in from the ton bag station 202 and transported to the subsequent processing stage by using vacuum negative pressure. The resin powder enters the filter 203, and the filter 203 separates the air and powder in the vacuum conveying of the resin powder, so that the pure resin powder enters the second mixing tank 204. The second mixing tank 204 stirs the resin powder. The two second mixing tanks 204 and the second vacuum feeder 205 can be connected in series for vacuum conveying. The pneumatic butterfly valve 206 is used to control the addition of resin powder.

[0097] The first blower 101 provides positive pressure airflow, and its outlet is connected to the inlet of the condenser 102, delivering the positive pressure airflow to the condenser 102. The condenser 102 cools the airflow conveying the crushed material, and its outlet is connected to the inlet of the crusher 103, delivering the cooled airflow to the crusher 103. The crusher 103 crushes the raw material to the required particle size, and its outlet is connected to the inlet of the second blower 104. The second blower 104 assists in the positive pressure conveying of the raw material, conveying the crushed material to the cyclone separator 105. The cyclone separator 105 performs gas-solid separation on the positive pressure conveyed crushed material, and its inlet is connected to the outlet of the second blower 104. The separated solid crushed material enters the first mixing tank 106, where the crushed material is stirred. The vibrating screen 107 is located at the outlet of the first mixing tank 106 and is used to screen out any remaining agglomerated material after stirring. The crushed material, after being screened by vibrating screen 107, enters the feed end of third blower 108 from the discharge end of first mixing vessel 106. Third blower 108 and fourth blower 109 are connected in series. The discharge end of fourth blower 109 is connected to the feed end of another first mixing vessel 106, realizing series positive pressure conveying between the two first mixing vessels 106. Slide valve 110 is installed at the discharge end of first mixing vessel 106 for opening and closing the discharge.

[0098] The resin powder after stirring is stored in the second stirring tank 204, awaiting subsequent weighing and measurement. Meanwhile, the crushed material after screening and conveying is stored in the corresponding first stirring tank 106, awaiting subsequent weighing and measurement. The feed end of the third stirring tank 111 is connected to the discharge end of the second stirring tank 204, and is used to temporarily store the resin powder. The amount of resin powder added is measured by a weighing sensor installed on it. The feed end of the fourth stirring tank 112 is connected to the discharge end of the fourth blower 109, and is used to temporarily store the screened crushed material. The amount of crushed material added is measured by a weighing sensor installed on it.

[0099] The feed end of the first screw conveyor 113 is connected to the discharge end of the fourth mixing vessel 112, conveying the crushed material in the fourth mixing vessel 112 to the fifth mixing vessel 114. The discharge ends of the third mixing vessel 111 and the first screw conveyor 113 are both connected to the feed end of the fifth mixing vessel 114. The fifth mixing vessel 114 mixes the crushed material, the resin powder conveyed from the second mixing vessel 204, and the liquid added from the metering tank 115. The metering tank 115 is used to meter and add liquid formulation materials. The discharge ends of the fifth mixing vessel 114 and the metering tank 115 are both connected to the feed end of the sixth mixing vessel 116, which is used to store the mixed final formulation materials.

[0100] The feed end of the second screw conveyor 117 is connected to the discharge end of the sixth mixing vessel 116, conveying the mixed formula material from the sixth mixing vessel 116 to the hopper 118. The hopper 118 is used to store the formula material to be processed, and an indicator unit is provided on its inner side. When the hopper 118 is low on material or full, the indicator unit will sound an alarm. The above actions are repeated to achieve automatic mixing and feeding. The discharge end of the hopper 118 is connected to the feed end of the twin-screw extruder 119, which extrudes the formula material into a PVB wedge film.

[0101] When the first fan 101 is working, the outside air enters the inside of the housing through the filter screen 4. When a large amount of impurities are adsorbed on the surface of the filter screen 4, it is necessary to clean the filter screen 4. The fixing ring 31 is pushed to move along the guide rod 35, compressing the first spring 36. During the movement of the fixing ring 31, when the protrusion 38 contacts the locking block 33, the protrusion 38 squeezes the locking block 33, causing the locking block 33 to rotate around the hinge point. The locking block 33 leaves the inside of the locking groove 32. At this time, the fixing frame 37 and the filter screen 4 are in a detachable state, and the filter screen 4 can be removed from the housing for maintenance or replacement.

[0102] Place the maintained or replaced filter screen 4 along with the fixing bracket 37 in a suitable position and insert it into the inside of the fixing ring 31 so that the locking groove 32 is aligned with the direction of the locking block 33. Push the fixing bracket 37. When the fixing bracket 37 slides past the outside of the locking block 33, so that the locking block 33 is engaged in the inside of the locking groove 32, the sealing ring is clamped at the same time, thus realizing the installation of the filter screen 4.

[0103] In summary, by setting up a second mixing vessel 204, a first mixing vessel 106, a third mixing vessel 111, a fourth mixing vessel 112, a fifth mixing vessel 114, a sixth mixing vessel 116, and a metering tank 115, and in conjunction with weighing sensors and other equipment, the addition amounts of resin powder, crushed material, and liquid formulation materials can be measured and controlled. Simultaneously, the first vacuum feeder 201 and the second vacuum feeder 205 ensure stable conveying of resin powder; the first blower 101, the second blower 104, the third blower 108, and the fourth blower 109 achieve positive pressure conveying of crushed material; and the first screw conveyor... The cyclone conveyor 113 and the second screw conveyor 117 achieve stable material transfer, ensuring continuous and stable production. This solves the problems of personnel costs, maintenance costs, and raw material waste caused by material blockage. During material conveying and processing, the cyclone separator 105 performs gas-solid separation for the positive pressure conveying of crushed material, and the vibrating screen 107 removes agglomerated material. These measures reduce the risk of material blockage in pipelines or equipment, reduce the manpower required for unblocking, equipment maintenance, and raw material loss due to material blockage, and improve production efficiency and economic benefits.

[0104] The entire system achieves automatic mixing and feeding through the coordinated operation of its components. From vacuum feeding of resin powder, processing and conveying of crushed material, to mixing and metering of various materials in the mixing tank, and finally conveying the final formulation to the twin-screw extruder 119 for extrusion into PVB wedge film, the entire process is highly automated, reduces manual intervention, and improves production efficiency and product quality uniformity.

[0105] When a large amount of impurities adsorbed on the surface of the filter screen 4 need to be cleaned, simply push the fixing ring 31 along the guide rod 35, and use the protrusion 38 to squeeze the locking block 33 to make it leave the locking groove 32. The filter screen 4 can then be easily removed from the housing for maintenance or replacement. The operation is simple and greatly improves the efficiency of cleaning the filter screen 4, reducing the occurrence of the blower performance being affected by the clogging of the filter screen 4. Place the maintained or replaced filter screen 4 together with the fixing bracket 37 in a suitable position and insert it into the inside of the fixing ring 31. Push the fixing bracket 37 to make the locking block 33 engage with the inside of the locking groove 32. The engaging structure ensures that the filter screen 4 is firmly installed and will not loosen or fall off due to vibration or other reasons during the operation of the blower, thus ensuring the stable operation of the blower system.

[0106] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A PVB wedge film feed system characterized by, It includes raw material handling components, mixing and storage components, weighing and metering components, mixing and storage components, and processing and production components; The raw material processing component is connected to the stirring and storage component, the stirring and storage component is connected to the weighing and metering component, the weighing and metering component is connected to the mixing and storage component, and the mixing and storage component is connected to the processing and production component. The raw material processing component is used to crush and convey the raw materials. The stirring and storage assembly is used for stirring and temporarily storing raw materials; The weighing and metering component is used to measure the amount of each raw material added. The mixing and storage component is used to mix the raw materials evenly according to the formula ratio and to temporarily store the mixture; The processing and production components are used to process the mixed raw materials into products; The raw material processing components include a first blower (101), a condenser (102), a crusher (103), a second blower (104), a first vacuum feeder (201), and a ton bag station (202); The first blower (101) is used to provide positive pressure airflow for positive pressure conveying of raw materials; The condenser (102) is used to cool the airflow conveying the crushed material; The crusher (103) is used to crush the raw materials to the required particle size; The second fan (104) is used to assist in the positive pressure conveying of raw materials; The first vacuum feeder (201) is used for vacuum negative pressure feeding of resin powder; The ton bag station (202) is used to store resin powder raw materials.

2. The PVB wedge film feed system of claim 1, wherein, The outlet of the first fan (101) is connected to the inlet of the condenser (102), the outlet of the condenser (102) is connected to the inlet of the crusher (103), and the outlet of the crusher (103) is connected to the inlet of the second fan (104). The air inlet of the first vacuum feeder (201) is connected to the discharge end of the ton bag station (202).

3. The PVB wedge film feed system of claim 2, wherein, The first fan (101) includes a housing, and a filter screen (4) is provided on the air inlet side of the housing. A disassembly assembly (3) is provided on one side of the filter screen (4). The disassembly assembly (3) is used for disassembling and maintaining the filter screen (4). The disassembly assembly (3) includes several guide rods (35). One end of each guide rod (35) is connected to a limit block (34) by bolts. A fixing ring (31) is connected to the outside of the guide rod (35) by a linear bearing. Several protrusions (38) are fixed on the inner wall of the fixing ring (31).

4. The PVB wedge film feed system of claim 3, wherein, The disassembly assembly (3) also includes several connecting frames (39), with a locking block (33) hinged to the inner side of the connecting frame (39), and a second spring (310) connected between one side of the locking block (33) and the housing.

5. The PVB wedge film feed system of claim 4, wherein, The filter screen (4) is fixed with a fixing frame (37) on the outside. The fixing frame (37) has several locking grooves (32) on the outside. A sealing ring is fixed on one side of the fixing frame (37). The sealing ring is clamped between the fixing frame (37) and the housing. When the locking block (33) is engaged inside the locking groove (32), the fixing frame (37) and the filter screen (4) are in the installed state. When the locking block (33) leaves the inside of the locking groove (32), the fixing frame (37) and the filter screen (4) are in the disassembled state.

6. The PVB wedge film feed system of claim 5, wherein, The guide rod (35) is sleeved with a first spring (36) on its outer side. The two sides of the first spring (36) are respectively connected to the fixing ring (31) and one side of the housing. The guide rod (35) and the connecting frame (39) are both fixed to the surface of the housing. During the movement of the fixed ring (31), when the protrusion (38) contacts the locking block (33), the locking block (33) rotates around the hinge point.

7. The PVB wedge film feed system of claim 1, wherein, The mixing and storage assembly includes a cyclone separator (105), two first mixing tanks (106), a vibrating screen (107), a third blower (108), a fourth blower (109), a gate valve (110), a filter (203), two second mixing tanks (204), a second vacuum feeder (205), and a pneumatic butterfly valve (206). The cyclone separator (105) is connected to the discharge end of the second blower (104) at its feed end and to the feed end of the first mixing vessel (106) at its discharge end. The vibrating screen (107) is located at the discharge end of the first mixing vessel (106). The discharge end of the first mixing vessel (106) is connected to the feed end of the third blower (108). The third blower (108) and the fourth blower (109) are connected in series. The discharge end of the fourth blower (109) is connected to the feed end of another first mixing vessel (106). The slide valve (110) is installed at the discharge end of the first mixing vessel (106). The cyclone separator (105) is used for gas-solid separation during positive pressure conveying of crushed material; The first stirring vessel (106) is used to stir the crushed material; The vibrating screen (107) is used to screen out clumps of material that still exist after stirring; The third fan (108) and the fourth fan (109) are used for series positive pressure conveying between the two first stirring tanks (106); The slide gate valve (110) is used to open and close the material discharge valve; The filter (203) is used for gas-powder separation in the vacuum conveying of resin powder; The second stirring vessel (204) is used to stir the resin powder. The second vacuum feeder (205) is used for series vacuum conveying between the two second mixing vessels (204); The pneumatic butterfly valve (206) is used to control the addition of resin powder.

8. The PVB wedge film feed system of claim 7, wherein, The weighing and metering assembly includes a third stirring vessel (111) and a fourth stirring vessel (112); The feed end of the third mixing vessel (111) is connected to the discharge end of the second mixing vessel (204), and the feed end of the fourth mixing vessel (112) is connected to the discharge end of the fourth blower (109); The third stirring vessel (111) is used for temporary storage of resin powder; The fourth stirring vessel (112) is used for temporary storage of the crushed material after screening.

9. The PVB wedge film feed system of claim 8, wherein, The hybrid storage assembly includes a first screw conveyor (113), a fifth mixing vessel (114), a metering tank (115), a sixth mixing vessel (116), and a second screw conveyor (117); The feed end of the first screw conveyor (113) is connected to the discharge end of the fourth mixing vessel (112). The discharge ends of the third mixing vessel (111) and the first screw conveyor (113) are both connected to the feed end of the fifth mixing vessel (114). The discharge ends of the fifth mixing vessel (114) and the metering tank (115) are both connected to the feed end of the sixth mixing vessel (116). The discharge end of the sixth mixing vessel (116) is connected to the feed end of the second screw conveyor (117). The first screw conveyor (113) is used to convey the crushed material in the fourth mixing vessel (112) to the fifth mixing vessel (114); The fifth mixing vessel (114) is used to mix crushed material, resin powder and liquid; The metering tank (115) is used for metering and adding liquid formulation materials; The sixth mixing vessel (116) is used to store the mixed final formula materials; The second screw conveyor (117) is used to transport the mixed formula from the sixth mixing vessel (116) to the processing production component.

10. The PVB wedge film feed system of claim 9, wherein, The processing and production components include a hopper (118) and a twin-screw extruder (119); The discharge end of the second screw conveyor (117) is connected to the feed end of the hopper (118), and the discharge end of the hopper (118) is connected to the feed end of the twin screw extruder (119); The hopper (118) is used to store the formula materials to be processed; The twin-screw extruder (119) is used to extrude the formulation into a PVB wedge film; The hopper (118) is provided with a prompting unit on its inner side; The prompting unit is used to provide an alarm prompt when the hopper (118) is low on material or full; Weighing sensors are installed on the first mixing vessel (106), the second mixing vessel (204), the third mixing vessel (111), the fourth mixing vessel (112), the fifth mixing vessel (114), and the sixth mixing vessel (116). The weighing sensors are used to monitor the weight of the material.

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