Application of Vacuum-Assisted Molding in Bulk Bait Packaging

Abstract

The present invention discloses the application of vacuum-assisted forming in the packaging of block baits, belonging to the technical field of vacuum packaging. It includes a bottom plate, the upper surface of the bottom plate is fixedly connected to the lower surface of a base, and a conveying mechanism is arranged above the base. On both the left and right sides of the upper surface of the bottom plate, two brackets are fixedly connected. In the present invention, by setting a mold, a vacuum extraction component, a compressed air solenoid valve, a ventilation pipe, and an extraction pipe, while the electric push rod quickly contracts, the electro-hydraulic rod drives the mold to continue pressing down. At this time, the air solenoid valve and the vacuum solenoid valve are closed, enabling the heat-sealing separation mechanism to perform heat-sealing separation treatment on the upper film and the lower film. This avoids the problem of uneven force and stretching of the traditional blow-molded packaging film, making the overall stretching of the packaging film uniform and fast, with the same thickness after forming. It also avoids the repeated friction between the granular materials in the block baits and the packaging film, preventing damage to the packaging film during transportation or subsequent processing, reducing its air leakage rate and manufacturing cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of vacuum packaging, and specifically relates to the application of vacuum-assisted forming in the packaging of block baits. Background Art

[0002] Vacuum packaging, also known as reduced-pressure packaging, is to completely evacuate and seal the air in the packaging container, maintaining a highly reduced-pressure state inside the bag. The scarcity of air is equivalent to the effect of low oxygen, making it impossible for microorganisms to survive, so as to achieve the purpose of keeping fruits fresh and free from disease and rot. Applications include vacuum packaging in plastic bags, aluminum foil packaging, glassware, plastic and its composite packaging, etc. The packaging material can be selected according to the type of goods. Since fruits are fresh foods and still undergoing respiration, high hypoxia will cause physiological diseases. Therefore, vacuum packaging is rarely used for fruits.

[0003] Baits are widely used in fishing activities. Block baits are a type of bait, mainly used in large-area waters and flowing waters, and can be used as fishing baits or bait materials for making fish nests. Block baits are usually vacuum-packed. Since granular raw materials are used in block baits, in the vacuum packaging technology based on block baits.

[0004] 1) After traditional vacuum packaging, the granular materials will rub against the packaging bag, causing damage to the packaging film during the processes of transportation and bagging, with a relatively high air leakage rate, increasing the manufacturing cost.

[0005] 2) In the vacuum packaging technology based on one-time forming, currently, the packaging film needs to be heated and blow-molded. The prepared semi-finished materials are filled into the blown bottom film according to the standard amount. The bottom film filled with the contents is transported to the top film covering position, and the top film is completely covered on the bottom film filled with the contents. Then, sealing is carried out. However, in the process of packaging a large number of block baits, the traditional method is obviously more complicated. It is necessary to pre-transport the packaging film, then place the materials, and then cover the film and heat-seal it, which undoubtedly greatly increases the workload and affects the packaging efficiency, and cannot achieve the purpose of synchronizing the blow-molding and vacuum packaging processes.

[0006] Therefore, it is necessary to use the block bait packaging technology based on vacuum-assisted forming to solve the above problems. Summary of the Invention

[0007] (I) Technical Problems to be Solved

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides the application of vacuum-assisted forming in the packaging of block baits, and solves the problems that after traditional vacuum packaging, the granular materials will rub against the packaging bag, causing damage to the packaging film during the processes of transportation and bagging, with a relatively high air leakage rate, increasing the manufacturing cost; the traditional method is obviously more complicated, it is necessary to pre-transport the packaging film, then place the materials, and then cover the film and heat-seal it, which undoubtedly greatly increases the workload and affects the packaging efficiency.

[0009] (2) Technical solution

[0010] To achieve the above object, the present invention provides the following technical solution: the application of vacuum-assisted forming in the packaging of block baits, including a bottom plate, the upper surface of the bottom plate is fixedly connected to the lower surface of a base, a conveying mechanism is arranged above the base, two brackets are fixedly connected to both the left and right sides of the upper surface of the bottom plate, a top film winding roller and a bottom film winding roller are arranged between the corresponding two brackets, and the top film winding roller is located above the bottom film winding roller. One side of the bracket is fixed to the base, one end of the conveying mechanism is fixedly connected to a driving component, the lower part of the front surface of the driving component is fixedly connected to the front surface of the base, and one end of the front surfaces of the right top film winding roller and the bottom film winding roller is fixedly connected with a transmission wheel. The two transmission wheels are connected by a transmission belt, and the lower transmission wheel is connected to the driving component through a transmission belt.

[0011] The upper surface of the base is fixedly connected to the lower surface of a top plate. Four electric hydraulic rods are clamped in the middle of the top plate, and the bottom ends of the four electric hydraulic rods are fixedly connected to the upper surface of a mold. The outer walls of the corresponding two electric hydraulic rods are clamped with the same reinforcing plate, and the lower surface of the reinforcing plate is fixedly connected to the upper surface of the mold. Four material grooves are opened on the lower surface of the mold, a heat-sealing and separating mechanism is clamped on the lower surface of the mold, a gas guide box is arranged above the mold, the upper surface of the gas guide box is communicated with the bottom end of an air inlet pipe through a compressed air solenoid valve, the lower surface of the gas box is communicated with four air pipes, a vacuum extraction component is arranged on the lower surface of the gas guide box, the lower surface of the gas guide box is fixedly connected to the upper surface of the mold, and two extraction pipes are arranged at both ends of the vacuum extraction component. The outer walls of the two extraction pipes on the left and right sides and the two air pipes are clamped with the same support plate, and the two support plates are located below the mold.

[0012] As a further solution of the present invention: the driving component includes a motor, the lower surface of the motor body is fixedly connected to the upper surface of a fixed block, the back surface of the fixed block is fixedly connected to the front surface of the base, the output shaft of the motor is connected to the transmission wheel through a transmission belt, the output shaft of the motor is fixedly connected to one end of the conveying mechanism, and the motor is a three-phase asynchronous motor.

[0013] As a further solution of the present invention: four guide rollers are arranged on the top of the conveying mechanism, a blanking plate is fixedly connected to the right side surface of the base, there is a gap between the blanking plate and the right side of the conveying mechanism, and the blanking plate is designed to be inclined to the right.

[0014] As a further solution of the present invention: The vacuum extraction assembly includes a vacuum pump. The top end of the vacuum pump is fixedly connected to the lower surface of the air guide box, and the bottom end of the vacuum pump is fixedly connected to the upper surface of the mold. Both output shafts of the vacuum pump are connected to connecting pipes through vacuum solenoid valves, and the outer wall of the connecting pipes communicates with two extraction pipes.

[0015] As a further solution of the present invention: The middle parts of the ventilation pipes and the extraction pipes are of telescopic design, and the outer walls of the corresponding two ventilation pipes and extraction pipes are clamped by the same adjusting assembly, and the adjusting assembly is clamped in the mold.

[0016] As a further solution of the present invention: The adjusting assembly includes a cross plate. The inside of the cross plate is clamped with the ventilation pipes and the extraction pipes, and one side of the cross plate is embedded in the mold through an electric push rod.

[0017] As a further solution of the present invention: A heating assembly is arranged on the left side of the top plate. The heating assembly is located above the conveying mechanism, and a plurality of placing grooves are arranged on the conveyor belt outside the conveying mechanism.

[0018] As a further solution of the present invention: The heating assembly includes a first baffle. The lower surface of the first baffle is fixedly connected to the upper surface of the base. A heating pipe is arranged on the lower surface of the inner wall of the first baffle. A temperature controller is arranged on the top of the heating pipe, and the temperature controller is clamped on the top of the first baffle. A second baffle is arranged on the right side of the top plate. The lower surface of the second baffle is fixedly connected to the upper surface of the base. A cooling mechanism is arranged on the top of the inner wall of the second baffle, and the cooling mechanism is a blower or an exhaust fan.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, by arranging a mold, a vacuum extraction component, a compressed air solenoid valve, an air guide box, a vent pipe and an extraction pipe, during the vacuum packaging process of the block bait, the top film is located between the mold and the support plate, the bottom film is located on the conveying mechanism, the block bait is placed on the bottom film and is located in a storage groove arranged in the conveyor belt on the conveying mechanism, then four electric hydraulic rods are extended to push the mold downward, and during the downward movement of the mold, the vent pipe and the extraction pipe squeeze the conveying mechanism, so that the conveyor belt on the conveying mechanism produces a certain deformation, so that the top film and the bottom film are closely attached, and the heat-sealing separation mechanism works to seal the top film and the bottom film, then the vacuum pump works and the compressed air solenoid valve and the vacuum solenoid valve are opened at the same time, and the compressed air first passes through the vent pipe, and the bottom film is sealed. The air pipe enters into the material trough, blows the top film and the bottom film to change their shape, and blows them into shape. The vacuum pump works to make the extraction tube extract the gas between the top film and the bottom film, so that the top film and the bottom film fit tightly with the block bait. Secondly, the electric push rod contracts rapidly while the electric hydraulic rod drives the mold to continue to press down. At this time, the air solenoid valve and the vacuum solenoid valve are closed, so that the heat-sealing separation mechanism performs heat-sealing separation on the upper film and the lower film, avoiding the problem of uneven force and stretching of traditional blow-molded packaging film, making the overall stretching of the packaging film uniform and fast, and the film thickness is consistent after molding. It also avoids repeated friction between the granular materials in the block bait and the packaging film, prevents damage to the packaging film during transportation or subsequent processing, and reduces its leakage rate and manufacturing cost.

[0022] 2. In the present invention, by arranging a top film winding roller, a bottom film winding roller, a motor, a transmission mechanism and a guide roller, during the process of conveying the top film and the bottom film, the motor is controlled to work, and the top film winding roller and the bottom film winding roller are made to rotate synchronously through the action of the conveyor belt. The top film is conveyed above the transmission mechanism through the guide roller, and the bottom film is directly in contact with the transmission mechanism, thereby realizing the synchronous transmission of the top film and the bottom film, and then the top film and the bottom film are blown and heat-sealed through the mold. Compared with the traditional split-type blow molding and heat-sealing operations, this scheme effectively realizes the purpose of simultaneous blow molding and vacuum packaging processes, reduces the workload and improves packaging efficiency.

[0023] 3. In the present invention, by providing a top film winding roller, a bottom film winding roller, a blanking plate, a driving wheel, a transmission belt and a cooling mechanism, controlling the operation of the motor, which is connected to the conveying mechanism, and connecting the top film winding roller and the bottom film winding roller to the driving wheel through the transmission belt, the purpose of synchronous operation of the top film winding roller, the bottom film winding roller and the conveying mechanism is achieved, realizing integrated operation, further improving the processing efficiency and controlling costs. Since there is a gap between the blanking plate and the conveying mechanism, after the hot sealing and separating mechanism process is completed, the product is separated from the surplus material of the packaging film. The surplus material is wound by the right bottom film winding roller and the top film winding roller, and the product falls through the inclined blanking plate, effectively sorting the product, which is beneficial to the centralized collection of the product. Through the setting of the cooling mechanism, the formed packaging film is quickly cooled and solidified, avoiding deformation of the packaging film caused by conveying or product extrusion, and improving the effect of vacuum packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a rear three-dimensional structural schematic diagram of the present invention;

[0026] Figure 3 is a three-dimensional structural schematic diagram of the top plate of the present invention;

[0027] Figure 4 is a three-dimensional structural schematic diagram of the mold of the present invention;

[0028] Figure 5 is a structural schematic diagram of the connection between the air guide box and the vacuum extraction assembly of the present invention;

[0029] Figure 6 is a three-dimensional structural schematic diagram of the driving assembly of the present invention;

[0030] In the figure: 1, bottom plate; 2, base; 3, conveying mechanism; 4, driving assembly; 41, motor; 42, fixing block; 5, bracket; 6, top film winding roller; 7, bottom film winding roller; 8, driving wheel; 9, cooling mechanism; 10, guide roller; 11, blanking plate; 12, top plate; 13, mold; 14, material tank; 15, air guide box; 16, compressed air solenoid valve; 17, intake pipe; 18, electro-hydraulic rod; 19, reinforcement plate; 20, ventilation pipe; 21, support plate; 22, vacuum extraction assembly; 221, vacuum pump; 222, vacuum solenoid valve; 223, connecting pipe; 23, extraction pipe; 24, adjustment assembly; 241, cross plate; 242, electric push rod; 25, heating assembly; 251, first baffle; 252, temperature controller; 253, heating pipe; 26, second baffle; 27, hot sealing and separating mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0031] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0032] As Figure 1-6 shown, the present invention provides a technical solution: the application of vacuum-assisted forming in the packaging of block baits, including a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected to the lower surface of the base 2, a conveying mechanism 3 is arranged above the base 2, two brackets 5 are fixedly connected to both the left and right sides of the upper surface of the bottom plate 1, a top film winding roller 6 and a bottom film winding roller 7 are arranged between the corresponding two brackets 5, and the top film winding roller 6 is located above the bottom film winding roller 7. One side of the bracket 5 is fixed to the base 2, one end of the conveying mechanism 3 is fixedly connected to a driving component 4. Through the mutual cooperation among the driving component 4, the transmission wheel 8 and the transmission belt, the motor 41 is connected to the conveying mechanism 3 and is connected to the top film winding roller 6 and the bottom film winding roller 7 through the transmission belt and the transmission wheel 8, achieving the purpose of synchronous operation of the top film winding roller 6, the bottom film winding roller 7 and the conveying mechanism 3, realizing integrated operation, further improving the processing efficiency and controlling costs. The lower part of the front surface of the driving component 4 is fixedly connected to the front surface of the base 2, and one end of the front surface of the right top film winding roller 6 and the bottom film winding roller 7 is fixedly connected to a transmission wheel 8. The two transmission wheels 8 are connected through a transmission belt, and the lower transmission wheel 8 is connected to the driving component 4 through a transmission belt. Since there is a gap between the blanking plate 11 and the conveying mechanism 3, after the process of the heat-sealing separation mechanism 27 is completed, the separation of the product from the surplus material of the packaging film is realized. The surplus material is wound by the right bottom film winding roller 7 and the top film winding roller 6, and the product falls through the inclined blanking plate 11, effectively sorting the product and facilitating the centralized collection of the product.

[0033] The upper surface of the base 2 is fixedly connected to the lower surface of the top plate 12. Four electric hydraulic rods 18 are clamped in the middle of the top plate 12. The bottom ends of the four electric hydraulic rods 18 are fixedly connected to the upper surface of the mold 13. The outer walls of the corresponding two electric hydraulic rods 18 are clamped with the same reinforcing plate 19. The lower surface of the reinforcing plate 19 is fixedly connected to the upper surface of the mold 13. Four material grooves 14 are opened on the lower surface of the mold 13. A heat-sealing separation mechanism 27 is clamped on the lower surface of the mold 13. A gas guide box 15 is arranged above the mold 13. The upper surface of the gas guide box 15 is communicated with the bottom end of the air inlet pipe 17 through a compressed air solenoid valve 16. The lower surface of the gas box is communicated with four air pipes 20. A vacuum extraction component 22 is arranged on the lower surface of the gas guide box 15. The lower surface of the gas guide box 15 is fixedly connected to the upper surface of the mold 13. Two extraction pipes 23 are arranged at both ends of the vacuum extraction component 22. The outer walls of the two extraction pipes 23 on the left and right sides and the two air pipes 20 are clamped with the same support plate 21. The two support plates 21 are located below the mold 13.

[0034] Specifically, as Figure 2 、 Figure 5 and Figure 6As shown, the driving assembly 4 includes a motor 41. The lower surface of the motor 41 body is fixedly connected to the upper surface of the fixing block 42. The back surface of the fixing block 42 is fixedly connected to the front surface of the base 2. The output shaft of the motor 41 is connected to the transmission wheel 8 through a transmission belt. The output shaft of the motor 41 is fixedly connected to one end of the conveying mechanism 3. The motor 41 is set as a three-phase asynchronous motor. Four guiding rollers 10 are arranged on the top of the conveying mechanism 3. By arranging the guiding rollers 10, the purpose of guiding the top film is achieved, so that the top film always moves horizontally on the conveying mechanism 3, improving the blow molding and vacuum packaging effects. A blanking plate 11 is fixedly connected to the right side surface of the base 2. There is a gap between the blanking plate 11 and the right side of the conveying mechanism 3. The blanking plate 11 is designed to be inclined to the right. The vacuum extraction assembly 22 includes a vacuum pump 221. The top end of the vacuum pump 221 is fixedly connected to the lower surface of the air guide box 15. The bottom end of the vacuum pump 221 is fixedly connected to the upper surface of the mold 13. Both output shafts of the vacuum pump 221 are connected with connecting pipes 223 through vacuum solenoid valves 222. The outer wall of the connecting pipe 223 communicates with two extraction pipes 23.

[0035] Specifically, as Figure 1 , Figure 4 and Figure 5 shown, the middle parts of the ventilation pipes 20 and the extraction pipes 23 are of telescopic design, and the outer walls of the corresponding two ventilation pipes 20 and extraction pipes 23 are clamped by the same adjusting assembly 24. The adjusting assembly 24 is clamped in the mold 13. The adjusting assembly 24 includes a cross plate 241. The inside of the cross plate 241 is clamped with the ventilation pipes 20 and the extraction pipes 23. One side of the cross plate 241 is embedded in the mold 13 through an electric push rod 242. By arranging the electric push rod 242, while the electric push rod 242 quickly contracts, the electric hydraulic rod 18 drives the mold 13 to continue to press down, so that the heat sealing and separating mechanism 27 closely adheres to the top film and the bottom film during the pressing process, avoiding air leakage due to gaps and further improving the heat sealing effect. A heating assembly 25 is arranged on the left side of the top plate 12. The heating assembly 25 is located above the conveying mechanism 3. A number of placing grooves are arranged on the conveyor belt outside the conveying mechanism 3.

[0036] Specifically, as Figure 1 and Figure 2As shown in the figure, the heating component 25 includes a first baffle 251. The lower surface of the first baffle 251 is fixedly connected to the upper surface of the base 2. The lower surface of the inner wall of the first baffle 251 is provided with a heating pipe 253. The top of the heating pipe 253 is provided with a thermostat 252. The thermostat 252 is clamped on the top of the first baffle 251. A second baffle 26 is provided on the right side of the top plate 12. The lower surface of the second baffle 26 is fixedly connected to the upper surface of the base 2. The top of the inner wall of the second baffle 26 is provided with a cooling mechanism 9, and the cooling mechanism 9 is set as a blower or an exhaust fan. Through the setting of the cooling mechanism 9, the formed packaging film can be quickly cooled and solidified, avoiding deformation of the packaging film during the process of transmission or product extrusion, and improving the effect of vacuum packaging.

[0037] The working principle of the present invention is as follows:

[0038] S1. When vacuum packaging of the block bait is required, a top film and a bottom film are wound on the top film winding roller 6 and the bottom film winding roller 7 respectively. The top film passes through a plurality of guide rollers 10 and is connected to the right top film winding roller 6, and the bottom film passes through the transmission mechanism 3 and the blanking plate 11 and is connected to the right bottom film winding roller 7. Secondly, the block bait is placed on the bottom film on the transmission mechanism 3 and is located in the placement groove provided in the conveyor belt of the transmission mechanism 3;

[0039] S2. Secondly, control the motor 41 and the thermostat 252 to work, so that the thermostat 252 regulates the temperature of the heating pipe 253, and the heating temperature is controlled between 115 - 120 °C. Secondly, the four electric hydraulic rods 18 extend to push down the mold 13. During the downward movement of the mold 13, the air pipe 20 and the extraction pipe 23 squeeze the transmission mechanism 3, causing a certain deformation of the conveyor belt on the transmission mechanism 3, making the top film and the bottom film fit tightly. The heat sealing and separating mechanism 27 works to seal between the top film and the bottom film. Secondly, the vacuum pump 221 works and at the same time the compressed air solenoid valve 16 and the vacuum solenoid valve 222 are opened. The compressed air first enters the material tank 14 through the air pipe 20 to perform blow molding on the top film and the bottom film to change their shapes, and the compressed air is controlled at 5.2 - 5.8 kg / square meter;

[0040] S3. Secondly, the vacuum pump 221 works to extract the gas between the top film and the bottom film, making the top film and the bottom film fit tightly with the block bait. Secondly, while the electric push rod 242 quickly contracts, the electric hydraulic rod 18 drives the mold 13 to continue to press down. At this time, the air solenoid valve and the vacuum solenoid valve 222 are closed, so that the heat sealing and separating mechanism 27 performs heat sealing and separating treatment on the upper film and the lower film, and the heat sealing temperature is controlled between 140 - 150 °C;

[0041] S4. After the process of the heat-sealing and separating mechanism 27 is completed, the product is separated from the remaining material of the packaging film. The remaining material is wound by the right bottom film winding roller 7 and the top film winding roller 6. The cooling mechanism 9 is provided to quickly cool and solidify the formed packaging film. Secondly, the product falls through the inclined blanking plate 11, and the product is sorted.

[0042] In summary:

[0043] By setting the mold 13, the vacuum extraction component 22, the compressed air solenoid valve 16, the air guide box 15, the air pipe 20 and the extraction pipe 23, during the vacuum packaging process of the block bait, the top film is located between the mold 13 and the support plate 21, the bottom film is located on the conveying mechanism 3, the block bait is placed on the bottom film and is located in the placement groove arranged in the conveyor belt on the conveying mechanism 3. Secondly, the four electric hydraulic rods 18 extend to push down the mold 13. During the downward movement of the mold 13, the air pipe 20 and the extraction pipe 23 squeeze the conveying mechanism 3, causing a certain deformation of the conveyor belt on the conveying mechanism 3, so that the top film and the bottom film are closely attached. The heat-sealing and separating mechanism 27 works to seal between the top film and the bottom film. Secondly, the vacuum pump 221 works and at the same time the compressed air solenoid valve 16 and the vacuum solenoid valve 222 are opened. The compressed air first enters the material tank 14 through the air pipe 20 to perform a blow molding operation on the top film and the bottom film to change their shapes for blow molding. The vacuum pump 221 works to extract the gas between the top film and the bottom film through the extraction pipe 23, so that the top film and the bottom film are closely attached to the block bait. Secondly, while the electric push rod 242 quickly contracts, the electric hydraulic rod 18 drives the mold 13 to continue to press down. At this time, the air solenoid valve and the vacuum solenoid valve 222 are closed, so that the heat-sealing and separating mechanism 27 performs a heat-sealing and separating treatment on the upper film and the lower film, avoiding the problem of uneven force and stretching of the traditional blow molding packaging film, making the overall stretching of the packaging film uniform and fast, the film thickness consistent after molding, and also avoiding the repeated friction between the granular materials in the block bait and the packaging film, preventing damage to the packaging film during transportation or subsequent processing, and reducing its air leakage rate and manufacturing cost.

[0044] By setting the top film winding roller 6, the bottom film winding roller 7, the motor 41, the conveying mechanism 3 and the guide roller 10, during the process of conveying the top film and the bottom film, the motor 41 is controlled to work. Through the action of the conveyor belt, the top film winding roller 6 and the bottom film winding roller 7 rotate synchronously. The top film is conveyed above the conveying mechanism 3 through the guide roller 10, and the bottom film is in direct contact with the conveying mechanism 3, realizing the synchronous conveyance of the top film and the bottom film. Then, the mold is used to perform blow molding and heat sealing operations on the top film and the bottom film. Compared with the traditional split-type blow molding and heat sealing operations, this solution effectively realizes the purpose of synchronously performing the blow molding and vacuum packaging processes, reducing the work burden and improving the packaging efficiency at the same time.

[0045] By setting up the top film winding roller 6, bottom film winding roller 7, blanking plate 11, driving wheel 8, transmission belt and cooling mechanism 9, by controlling the operation of the motor 41, and the motor 41 is connected to the conveying mechanism 3, and is connected to the top film winding roller 6 and bottom film winding roller 7 through the transmission belt and the driving wheel 8, the purpose of synchronous operation of the top film winding roller 6, bottom film winding roller 7 and the conveying mechanism 3 is achieved, realizing integrated operation, further improving the processing efficiency and controlling the cost. Since there is a gap between the blanking plate 11 and the conveying mechanism 3, after the process of the heat sealing and separating mechanism 27 is completed, the separation of the product and the remaining material of the packaging film is realized. The remaining material is wound by the right bottom film winding roller 7 and the top film winding roller 6, and the product falls through the inclined blanking plate 11, effectively sorting the product, which is beneficial to the centralized collection of the product. Through the setting of the cooling mechanism 9, the formed packaging film is quickly cooled and solidified, avoiding deformation of the packaging film during the process of conveying or being extruded by the product, and improving the effect of vacuum packaging.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0047] The above has made a detailed description of the preferred embodiment of this patent, but this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of this patent.

Claims

1. Application of vacuum-assisted forming in the packaging of bulk baits, including a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to the lower surface of the base (2). Above the base (2), a conveying mechanism (3) is provided. On both the left and right sides of the upper surface of the bottom plate (1), two brackets (5) are fixedly connected. Between the corresponding two brackets (5), a top film winding roller (6) and a bottom film winding roller (7) are provided, and the top film winding roller (6) is located above the bottom film winding roller (7). One side of the bracket (5) is fixed to the base (2). One end of the conveying mechanism (3) is fixedly connected to a driving component (4). The lower part of the front surface of the driving component (4) is fixedly connected to the front surface of the base (2). One end of the front surface of the right top film winding roller (6) and the bottom film winding roller (7) is fixedly connected with a transmission wheel (8). The two transmission wheels (8) are connected by a transmission belt. The lower transmission wheel (8) is connected to the driving component (4) through a transmission belt; The upper surface of the base (2) is fixedly connected to the lower surface of the top plate (12). Four electric hydraulic rods (18) are clamped in the middle of the top plate (12). The bottom ends of the four electric hydraulic rods (18) are fixedly connected to the upper surface of the mold (13). The outer walls of the corresponding two electric hydraulic rods (18) are clamped with the same reinforcing plate (19). The lower surface of the reinforcing plate (19) is fixedly connected to the upper surface of the mold (13). Four material grooves (14) are opened on the lower surface of the mold (13). A heat-sealing and separating mechanism (27) is clamped on the lower surface of the mold (13). Above the mold (13), an air guide box (15) is provided. The upper surface of the air guide box (15) is communicated with the bottom end of the air inlet pipe (17) through a compressed air solenoid valve (16). The lower surface of the air box is communicated with four air pipes (20). A vacuum extraction component (22) is arranged on the lower surface of the air guide box (15). The lower surface of the air guide box (15) is fixedly connected to the upper surface of the mold (13). Two extraction pipes (23) are arranged at both ends of the vacuum extraction component (22). The outer walls of the two extraction pipes (23) on the left and right sides and the two air pipes (20) are clamped with the same support plate (21). The two support plates (21) are located below the mold (13); The vacuum extraction component (22) includes a vacuum pump (221). The top end of the vacuum pump (221) is fixedly connected to the lower surface of the air guide box (15). The bottom end of the vacuum pump (221) is fixedly connected to the upper surface of the mold (13). Both output shafts of the vacuum pump (221) are connected with a connecting pipe (223) through a vacuum solenoid valve (222). The outer wall of the connecting pipe (223) is communicated with the two extraction pipes (23); The middle parts of the vent pipe (20) and the extraction pipe (23) are designed to be telescopic, and the outer walls of the two vent pipes (20) and the extraction pipe (23) are clamped by the same adjusting component (24). The adjusting component (24) is clamped in the mold (13). The adjusting component (24) includes a cross plate (241). The inside of the cross plate (241) is clamped with the vent pipe (20) and the extraction pipe (23). One side of the cross plate (241) is embedded in the mold (13) through an electric push rod (242).

2. The application of vacuum-assisted molding in the packaging of bulk baits according to claim 1, characterized in that: The driving component (4) includes a motor (41). The lower surface of the motor (41) body is fixedly connected to the upper surface of the fixed block (42). The back surface of the fixed block (42) is fixedly connected to the front surface of the base (2). The output shaft of the motor (41) is connected to the transmission wheel (8) through a transmission belt. The output shaft of the motor (41) is fixedly connected to one end of the conveying mechanism (3). The motor (41) is set as a three-phase asynchronous motor.

3. The application of vacuum-assisted molding in the packaging of bulk baits according to claim 1, characterized in that: Four guiding rollers (10) are arranged on the top of the conveying mechanism (3). The right side surface of the base (2) is fixedly connected with a blanking plate (11). There is a gap between the blanking plate (11) and the right side of the conveying mechanism (3). The blanking plate (11) is designed to be inclined to the right.

4. The application of vacuum-assisted molding in the packaging of bulk baits according to claim 1, characterized in that: A heating component (25) is arranged on the left side of the top plate (12). The heating component (25) is located above the conveying mechanism (3). A number of placing grooves are arranged on the conveyor belt outside the conveying mechanism (3).

5. The application of vacuum-assisted forming in the packaging of block baits according to claim 4, characterized in that: The heating component (25) includes a first baffle (251). The lower surface of the first baffle (251) is fixedly connected to the upper surface of the base (2). A heating pipe (253) is arranged on the lower surface of the inner wall of the first baffle (251). A temperature controller (252) is arranged on the top of the heating pipe (253). The temperature controller (252) is clamped on the top of the first baffle (251). A second baffle (26) is arranged on the right side of the top plate (12). The lower surface of the second baffle (26) is fixedly connected to the upper surface of the base (2). A cooling mechanism (9) is arranged on the top of the inner wall of the second baffle (26), and the cooling mechanism (9) is set as a blower or an exhaust fan.

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