Food packaging bag sealing device and method

Abstract

The invention relates to the technical field of sealing devices, in particular to a food packaging bag sealing device and method.The food packaging bag sealing device comprises a sealing machine body, an adjusting structure, a sealing structure, a cleaning structure, a heat dissipation structure, a water adding structure and an adjusting plate; the arrangement of the sealing structure facilitates sealing processing of the packaging bag, the arrangement of the cleaning structure can clean the heat-resisting conveying belt, food scraps, sauce and other sundries left on the heat-resisting conveying belt are removed in time, the situation that conveying is affected by adhesion and solidification of the sundries is prevented, and meanwhile food hygiene and safety are guaranteed; according to the heat dissipation structure, a large amount of heat can be rapidly taken away through cooperative use of air cooling and water cooling, the temperature of key parts of the equipment is rapidly reduced, the heat dissipation requirement of continuous production is met, the heat dissipation efficiency is improved through cooperation of the air cooling and the water cooling, and continuous and stable operation of the equipment is guaranteed; and a limiting plate in the adjusting structure is clamped with an adjusting rod, so that the adjusted adjusting plate can be conveniently and quickly fixed, and the adjusting efficiency of the adjusting plate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sealing devices, in particular to a food packaging bag sealing device and method. Background Art

[0002] During the storage and circulation process, food is extremely susceptible to contamination from the external environment. Sealing food packaging bags with a sealing machine can provide a tight sealing effect for the food packaging bags, effectively blocking the invasion of microorganisms such as bacteria and mold in the air, and preventing food from being contaminated by microorganisms and deteriorating.

[0003] However, the sealing operation of food packaging bags is a key link in ensuring food quality and safety. During the sealing process of food packaging bags, impurities will remain on the packaging bags, and these impurities are very easy to adhere to the heat-resistant conveyor belt of the sealing machine. The adhesion of impurities will not only affect the normal operation of the heat-resistant conveyor belt, but also breed bacteria and affect food safety; at the same time, the continuous sealing machine cooling usually adopts natural cooling or a single air cooling method, and the natural cooling speed is too slow, resulting in reduced sealing efficiency; the width adjustment plate of the sealing machine is installed by bolts to adjust the sealing width, but when adjusting, it is necessary to first loosen the bolts with a tool, manually adjust the position and measure the position with a measuring tool, so that the width adjustment plate can be accurately adjusted, and then tighten the bolts. The adjustment process is cumbersome and time-consuming, which affects the adjustment efficiency. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a food packaging bag sealing device and method.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a food packaging bag sealing device and method, including a sealing machine body, an adjustment structure installed on the sealing machine body, an adjustment plate installed on the adjustment structure, a sealing structure installed on the sealing machine body, a cleaning structure installed on the sealing machine body, and a heat dissipation structure installed on the sealing machine body;

[0006] The sealing structure includes four mounting shafts rotatably connected to the sealing machine body and transmission wheels fixedly connected to the mounting shafts, and a heat-resistant conveyor belt is used to transmit the transmission between every two transmission wheels. Two heating blocks are installed on the sealing machine body;

[0007] The adjustment structure includes a mounting plate fixedly connected to the sealing machine body and an adjustment rod slidably connected to the mounting plate, a limit plate slidably connected inside the mounting plate, a plurality of limit grooves are provided on the adjustment rod, the limit plate is engaged with one of the limit grooves, a pull plate is fixedly connected to the limit plate, the pull plate is slidably connected to the mounting plate, a tension spring is fixedly connected between the pull plate and the mounting plate, the pull plate is in an "L"-shaped structure, an adjustment plate is fixedly connected to the adjustment rod, an identification block is fixedly connected to the adjustment rod, and an indicator rod is fixedly connected to the pull plate.

[0008] Specifically, the cleaning structure includes two connecting shafts rotatably connected to the sealing machine body and a cleaning brush installed on the connecting shafts. A pulley is fixedly connected to the connecting shaft, and the two pulleys are driven by a belt.

[0009] Specifically, a knob is threadedly connected to the connecting shaft, and the knob conflicts with the cleaning brush.

[0010] Specifically, two dust hoods are fixedly connected to the sealing machine body, a dust box is fixedly connected to the sealing machine body, a connecting pipe is fixedly connected between the two dust hoods, a dust pipe is fixedly connected to the connecting pipe, and the other end of the dust pipe is fixedly connected to the dust box.

[0011] Specifically, a vacuum pump is installed on the dust box, a fixed pipe is installed at the air intake of the vacuum pump, the other end of the fixed pipe is fixedly connected to the dust box, a first filter is installed in the dust box through a frame, and a collection frame is installed on the dust box.

[0012] Specifically, the fixed pipe is connected to the top of the first filter, the dust suction pipe is connected to the bottom of the first filter, a mounting seat is installed on the sealing machine body, a motor is installed on the mounting seat, and one of the connecting shafts is fixedly connected to the output shaft of the motor.

[0013] Specifically, the heat dissipation structure includes a heat dissipation plate installed on the sealing machine body and a pipe installed on the heat dissipation plate. A connecting plate is installed on the sealing machine body, a water tank is fixedly connected to the connecting plate, and a radiator is installed on the water tank.

[0014] Specifically, a water pump is installed on the connecting plate, a first hose is installed at the water inlet of the water pump, the other end of the first hose is fixedly connected to the water tank, a second hose is installed between the two pipes, the second hose is installed at the water outlet of the water pump, a third hose is fixedly connected between the two pipes, the third hose is installed at the inlet of the radiator, a fourth hose is installed at the outlet of the radiator, the other end of the fourth hose is connected to the water tank, and a fan is installed on the sealing machine body.

[0015] Specifically, the water tank is provided with a water adding structure, which includes a liquid adding pipe installed on the water tank and a mounting ring installed on the liquid adding pipe, a threaded cover is threadedly connected to the liquid adding pipe, a second filter is fixedly connected to the mounting ring, a lifting rod is fixedly connected to the mounting ring, and a float rod is installed in the water tank.

[0016] A method for sealing a food packaging bag, comprising the following steps:

[0017] S1: The food packaging bag is transported by the conveying device on the sealing machine body, and the food packaging bag is sealed by the sealing structure. During the sealing process, the sealing components in the sealing structure are cleaned by the cleaning structure;

[0018] S2: After the sealing is completed, the sealed portion of the packaging bag is cooled by the heat dissipation structure, and water can be added to the water storage component in the heat dissipation structure by the water adding structure;

[0019] S3: The position of the adjustment plate is quickly adjusted according to the different sealing widths required for the food packaging bag through the adjustment structure.

[0020] The beneficial effects of the present invention are:

[0021] (1) The food packaging bag sealing device and method described in the present invention has a sealing structure on the sealing machine body and a cleaning structure on the sealing machine body. The setting of the sealing structure facilitates the sealing process of the packaging bag. The setting of the cleaning structure can clean the heat-resistant conveyor belt and promptly remove food crumbs, sauces and other debris remaining on the heat-resistant conveyor belt to prevent them from adhering and solidifying to affect transportation, thereby ensuring food hygiene and safety and extending its service life.

[0022] (2) The food packaging bag sealing device and method described in the present invention has a heat dissipation structure on the sealing machine body and a water adding structure on the water tank. The heat dissipation structure can quickly take away a large amount of heat through the combination of air cooling and water cooling, quickly reduce the temperature of key parts of the equipment, and meet the heat dissipation requirements of continuous production. The combination of the two greatly improves the overall heat dissipation efficiency and ensures the continuous and stable operation of the equipment. At the same time, the fan can take away some heat and odor, improve the working environment temperature, reduce odor residue, and improve the comfort of the working environment. The setting of the water adding structure makes it easy to add water to the water tank.

[0023] (3) In the food packaging bag sealing device and method described in the present invention, an adjustment structure is provided on the sealing machine body, and the limit plate in the adjustment structure is engaged with the adjustment rod, so that the adjusted adjustment plate can be quickly fixed, thereby improving the adjustment efficiency of the adjustment plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a food packaging bag sealing device and method provided by the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the dust hood and the sealing machine body of the present invention;

[0027] Figure 3 for Figure 2 An enlarged schematic diagram of the structure of section A is shown;

[0028] Figure 4 It is a schematic diagram of the connection structure between the collection frame and the dust collection box of the present invention;

[0029] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B is shown;

[0030] Figure 6 It is a schematic diagram of the connection structure between the knob and the cleaning brush of the present invention;

[0031] Figure 7 It is a schematic diagram of the connection structure between the connecting shaft and the cleaning brush of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection structure between the vacuum pump and the dust collection box of the present invention;

[0033] Fig. 9 It is a schematic diagram of the connection structure between the water pump and the connection plate of the present invention;

[0034] Fig.10 It is a schematic diagram of the connection structure between the mounting ring and the liquid adding pipe of the present invention;

[0035] Fig.11 It is a schematic diagram of the connection structure between the adjusting rod and the mounting plate of the present invention;

[0036] Fig.12 It is a schematic diagram of the connection structure between the limiting plate 204 and the pulling plate of the present invention.

[0037] In the figure: 1. Sealing machine body; 2. Adjustment structure; 201. Mounting plate; 202. Adjustment rod; 203. Marking block; 204. Limiting plate; 205. Limiting groove; 206. Pull plate; 207. Tension spring; 208. Indicator rod; 3. Sealing structure; 301. Mounting shaft; 302. Transmission wheel; 303. Heat-resistant conveyor belt; 304. Heating block; 4. Cleaning structure; 401. Connecting shaft; 402. Cleaning brush; 403. Knob; 404. Pulley; 405. Mounting seat; 406. Motor; 407. Dust hood; 408. Connecting pipe; 409. Dust pipe ;410, dust box;411, vacuum pump;412, first filter;413, fixed pipe;414, collection frame;5, heat dissipation structure;501, heat sink;502, pipeline;503, connecting plate;504, water tank;505, water pump;506, first hose;507, second hose;508, third hose;509, radiator;510, fourth hose;511, fan;6, water adding structure;601, liquid adding pipe;602, mounting ring;603, second filter;604, lifting rod;605, floating rod;606, threaded cover;7, adjustment plate. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Fig.11 and Fig.12As shown, a food packaging bag sealing device and method described in the present invention comprises a sealing machine body 1, an adjusting structure 2 installed on the sealing machine body 1, an adjusting plate 7 installed on the adjusting structure 2, a sealing structure 3 installed on the sealing machine body 1, a cleaning structure 4 installed on the sealing machine body 1, and a heat dissipation structure 5 installed on the sealing machine body 1; the sealing structure 3 comprises four mounting shafts 301 rotatably connected to the sealing machine body 1 and a transmission wheel 302 fixedly connected to the mounting shaft 301, and each two of the transmission wheels 302 are driven by a heat-resistant conveyor belt 303, and two heating elements are installed on the sealing machine body 1. The heat block 304; the adjustment structure 2 includes a mounting plate 201 fixedly connected to the sealing machine body 1 and an adjustment rod 202 slidably connected to the mounting plate 201, a limit plate 204 is slidably connected inside the mounting plate 201, a plurality of limit grooves 205 are provided on the adjustment rod 202, the limit plate 204 is engaged with one of the limit grooves 205, a pull plate 206 is fixedly connected to the limit plate 204, the pull plate 206 is slidably connected to the mounting plate 201, a tension spring 207 is fixedly connected between the pull plate 206 and the mounting plate 201, the pull plate 206 is in an "L"-shaped structure, and an adjustment plate 7 is fixedly connected to the adjustment rod 202;

[0040] Specifically, Figure 1 , Figure 3 , Fig.11 and Fig.12 As shown, the adjusting rod 202 is fixedly connected with an identification block 203, and the pulling plate 206 is fixedly connected with an indicating rod 208. When the position of the adjusting plate 7 needs to be adjusted according to the sealing width, the pulling plate 206 is pulled, and the tension spring 207 is extended when the pulling plate 206 moves. At the same time, the pulling plate 206 will drive the limiting plate 204 to no longer engage with the limiting groove 205, and then the adjusting rod 202 slides with the mounting plate 201. When the adjusting rod 202 slides, the position of the adjusting plate 7 is adjusted so as to adjust the sealing width. To adjust the sealing width of the packaging bag, the indicator rod 208 cooperates with the identification block 203 during adjustment, and the sliding distance of the adjustment plate 7 is observed, so that fine adjustment can be made according to the sealing width of the bag opening, thereby improving the adjustment accuracy. After the adjustment is completed, the pull plate 206 is released, so that the pull plate 206 drives the limit plate 204 to engage with the limit groove 205 under the action of the tension spring 207. The limit plate 204 engages with the adjustment rod 202, so that the adjusted adjustment plate 7 can be quickly fixed, thereby improving the adjustment efficiency of the adjustment plate 7.

[0041] Specifically, Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the cleaning structure 4 includes two connecting shafts 401 rotatably connected to the sealing machine body 1 and a cleaning brush 402 installed on the connecting shaft 401, a pulley 404 is fixedly connected to the connecting shaft 401, and the two pulleys 404 are driven by a belt, a knob 403 is threadedly connected to the connecting shaft 401, and the knob 403 conflicts with the cleaning brush 402, two dust hoods 407 are fixedly connected to the sealing machine body 1, a dust box 410 is fixedly connected to the sealing machine body 1, a connecting pipe 408 is fixedly connected between the two dust hoods 407, a dust pipe 409 is fixedly connected to the connecting pipe 408, and the other end of the dust pipe 409 is fixedly connected to the dust box 410. A vacuum pump 411 is installed on the dust box 410, and a fixed pipe 413 is installed at the air intake port of the vacuum pump 411, and the other end of the fixed pipe 413 is fixedly connected to the dust box 410, and a first filter screen 412 is installed in the dust box 410 through a frame, and a collecting frame 414 is installed on the dust box 410, and the fixed pipe 413 is connected to the top of the first filter screen 412, and the dust suction pipe 409 is connected to the bottom of the first filter screen 412, and a mounting seat 405 is installed on the sealing machine body 1, and a motor 406 is installed on the mounting seat 405, and one of the connecting shafts 401 is fixedly connected to the output shaft of the motor 406, and the food packaging bag is placed on the conveying equipment on the sealing machine body 1, and the conveying equipment conveys the food at a constant speed. The product packaging bag is conveyed. During conveying, the bag mouth of the packaging bag is located between the two heat-resistant conveyor belts 303. The heat-resistant conveyor belt 303 will pass through the driving source in the sealing machine body 1 to drive the installation shaft 301 and the transmission wheel 302 to rotate to make the heat-resistant conveyor belt 303 move. When the packaging bag is conveyed to the bottom of the heating block 304, the heat-resistant conveyor belt 303 will cooperate with the heating block 304. Since the heat-resistant conveyor belt 303 is made of a material with certain elasticity and strength, the packaging bag will run close to the surface of the heating block 304. When the packaging bag passes, the heat-resistant conveyor belt 303 will exert a downward pressure on the sealing part, and the heating block 304 will also exert an upward reaction force on the sealing part. Under the joint action of these two forces, the plastic film in the melting point is melted. The packaging materials in this state will fit together more tightly, and the molecules will penetrate and diffuse with each other, so as to realize the firm connection of the sealing part. At the same time, the motor 406 can be started. When the output shaft of the motor 406 rotates, it drives one of the connecting shafts 401 to rotate. When one of the connecting shafts 401 rotates, it cooperates with the belt through two pulleys 404 to make the two connecting shafts 401 rotate at the same time. The connecting shaft 401 drives the cleaning brush 402 to rotate. The rotation of the cleaning brush 402 can clean the heat-resistant conveyor belt 303. By cleaning the heat-resistant conveyor belt 303 with the cleaning brush 402, the food crumbs, sauces and other debris remaining on the heat-resistant conveyor belt 303 can be removed in time to prevent them from sticking and solidifying and affecting the transportation. At the same time, the food hygiene and safety can be ensured, and its service life can be extended.When cleaning, the vacuum pump 411 is started. When the vacuum pump 411 is in operation, the cleaned residue will enter the connecting pipe 408 from the dust cover 407, then enter the dust pipe 409, and finally enter the dust box 410, and be adsorbed at the bottom of the first filter 412. When the vacuum pump 411 is turned off, the impurities at the bottom of the first filter 412 will fall into the collection frame 414 for collection. The setting of the collection frame 414 facilitates the collection of the cleaned impurities, and prevents the impurities from splashing everywhere and affecting the cleanliness of the sealing machine body 1.

[0042] Specifically, Figure 2 , Figure 4 , Figure 5 , Fig. 9 and Fig.10As shown, the heat dissipation structure 5 includes a heat dissipation plate 501 installed on the sealing machine body 1 and a pipe 502 installed on the heat dissipation plate 501, a connecting plate 503 is installed on the sealing machine body 1, a water tank 504 is fixedly connected to the connecting plate 503, a radiator 509 is installed on the water tank 504, a water pump 505 is installed on the connecting plate 503, a first hose 506 is installed at the water inlet of the water pump 505, the other end of the first hose 506 is fixedly connected to the water tank 504, a second hose 507 is installed between the two pipes 502, the second hose 507 is installed at the water outlet of the water pump 505, a third hose 508 is fixedly connected between the two pipes 502, the third hose 509 is installed at the outlet of the water pump 505, 8 is installed at the inlet of the radiator 509, and a fourth hose 510 is installed at the outlet of the radiator 509, and the other end of the fourth hose 510 is connected to the water tank 504. A fan 511 is installed on the sealing machine body 1, and a water adding structure 6 is provided on the water tank 504. The water adding structure 6 includes a liquid adding pipe 601 installed on the water tank 504 and a mounting ring 602 installed on the liquid adding pipe 601. A threaded cover 606 is threadedly connected to the liquid adding pipe 601, a second filter screen 603 is fixedly connected to the mounting ring 602, and a lifting rod 604 is fixedly connected to the mounting ring 602. A floating rod 605 is installed in the water tank 504. When the packaging bag completely passes through the action area of ​​the heating block 304 and the heat-resistant conveyor belt 303, the packaging bag is completely filled with water. After that, the sealing part is separated from the effect of heating and pressure, and the heat is transferred to the heat sink 501, and then the fan 511 is started, and the fan 511 will take away the heat on the heat sink 501. At this time, the fan 511 and the heat sink 501 accelerate the cooling speed of the molten material in the sealing part. As the temperature decreases, the intermolecular force gradually recovers and strengthens, so that the material in the sealing part gradually solidifies, and finally forms a firm and sealed seal. At the same time, the water pump 505 can be started. When the water pump 505 is in operation, water will flow from the first hose 506 into the water pump 505, and then from the water outlet of the water pump 505 into the second hose 507, and then from the second hose 507 into the two pipes 502. The water source flows in the pipe 502 and takes away the heat from the heat sink 501. The heat of the heat sink 501 is improved. The water source enters the radiator 509 from the third hose 508. The radiator 509 takes away the heat in the water when it is in operation. After the water is cooled, it enters the water tank 504 through the fourth hose 510 for recycling. The heat exchange efficiency of water cooling is high, which can quickly take away a large amount of heat and quickly reduce the temperature of key parts of the equipment to meet the heat dissipation needs of continuous production. The air cooling of the fan 511 can timely supplement the heat dissipation, and the auxiliary water cooling can further take away the remaining heat. The cooperation of the two greatly improves the overall heat dissipation efficiency and ensures the continuous and stable operation of the equipment. At the same time, the fan 511 can take away some heat and odor, improve the working environment temperature, reduce odor residue, and improve the comfort of the working environment. When water needs to be added,Through the floating rod 605, it is observed whether the water tank 504 needs to be refilled with water. When adding water, it is only necessary to unscrew the threaded cap 606 and add the water source into the water tank 504 through the liquid adding pipe 601. When adding water, the second filter screen 603 on the mounting ring 602 is convenient for filtering impurities in the water source. At the same time, the setting of the lifting rod 604 is convenient for removing the mounting ring 602 from the liquid adding pipe 601.

[0043] A method for sealing a food packaging bag, comprising the following steps:

[0044] S1: The food packaging bag is transported by the conveying device on the sealing machine body 1, and the food packaging bag is sealed by the sealing structure 3. During the sealing process, the sealing components in the sealing structure 3 are cleaned by the cleaning structure 4;

[0045] S2: After the sealing is completed, the sealed portion of the packaging bag is cooled by the heat dissipation structure 5, and water can be added to the water storage component in the heat dissipation structure 5 by the water adding structure 6;

[0046] S3: The position of the adjusting plate 7 is quickly adjusted according to different sealing widths required for the food packaging bag through the adjusting structure 2.

[0047] When the present invention is in use, a food packaging bag is placed on a conveying device on the sealing machine body 1, and the conveying device conveys the food packaging bag at a constant speed. During the conveying, the bag mouth of the packaging bag is located between the two heat-resistant conveying belts 303. The heat-resistant conveying belt 303 passes through the driving source in the sealing machine body 1, and the driving installation shaft 301 and the transmission wheel 302 rotate to make the heat-resistant conveying belt 303 move. When the packaging bag is conveyed to the bottom of the heating block 304, the heat-resistant conveying belt 303 cooperates with the heating block 304. The belt 303 is made of a material with certain elasticity and strength. The packaging bag will run close to the surface of the heating block 304. When the packaging bag passes, the heat-resistant conveyor belt 303 will exert a downward pressure on the sealing part, and the heating block 304 will also exert an upward reaction force on the sealing part. Under the joint action of these two forces, the packaging material in the molten state will fit together more closely, and the molecules will penetrate and diffuse with each other, so as to achieve a firm connection of the sealing part. At the same time, the motor 406 can be started, and the output of the motor 406 When the shaft rotates, it drives one of the connecting shafts 401 to rotate. When one of the connecting shafts 401 rotates, it cooperates with the belt through two pulleys 404 to make the two connecting shafts 401 rotate at the same time. The connecting shaft 401 drives the cleaning brush 402 to rotate. The cleaning brush 402 can clean the heat-resistant conveyor belt 303 by rotating. By cleaning the heat-resistant conveyor belt 303 with the cleaning brush 402, the food debris, sauces and other debris left on the heat-resistant conveyor belt 303 can be removed in time to prevent them from sticking and solidifying to affect the conveying, and at the same time ensure the hygiene and safety of food. To extend its service life, start the vacuum pump 411 during cleaning. When the vacuum pump 411 is operating, the cleaned residues will enter the connecting pipe 408 from the dust cover 407, then enter the dust pipe 409, and finally enter the dust box 410, and be adsorbed on the bottom of the first filter 412. When the vacuum pump 411 is turned off, the impurities at the bottom of the first filter 412 will fall into the collection frame 414 for collection. The setting of the collection frame 414 facilitates the collection of the cleaned impurities to prevent the impurities from splashing everywhere and affecting the cleanliness of the sealing machine body 1.

[0048] After the packaging bag completely passes through the action area of ​​the heating block 304 and the heat-resistant conveyor belt 303, the sealing part is separated from the action of heating and pressure, and the heat is transferred to the heat sink 501, and then the fan 511 is started, and the fan 511 will take away the heat on the heat sink 501. At this time, the fan 511 and the heat sink 501 accelerate the cooling speed of the molten material in the sealing part. As the temperature decreases, the intermolecular force gradually recovers and strengthens, so that the material in the sealing part gradually solidifies, and finally forms a firm and sealed seal. At the same time, the water pump 505 can be started. When the water pump 505 is in operation, water will flow into the water pump 505 from the first hose 506, and then enter the second hose 507 from the water outlet of the water pump 505, and then enter the two pipes 502 from the second hose 507. The water flowing in the pipe 502 will take away the heat from the heat sink 501, so that the heat dissipation effect of the heat sink 501 is better. The water will enter the radiator 509 from the third hose 508. The radiator 509 is in operation. The heat in the water will be taken away during operation. After the water is cooled, it will enter the water tank 504 through the fourth hose 510 for recycling. The heat exchange efficiency of water cooling is high, and a large amount of heat can be quickly taken away, and the temperature of the key parts of the equipment can be quickly reduced to meet the heat dissipation requirements of continuous production. The air cooling of the fan 511 can replenish the heat dissipation in time, and the auxiliary water cooling can further take away the remaining heat. The cooperation of the two greatly improves the overall heat dissipation efficiency and ensures the continuous and stable operation of the equipment. At the same time, the fan 511 can take away part of the heat and odor, improve the working environment temperature, reduce the residual odor, and improve the comfort of the working environment. When water needs to be added, the water tank 504 is observed to see whether water needs to be added through the float rod 605. When adding, just unscrew the threaded cover 606 and add the water source into the water tank 504 through the liquid adding pipe 601. When adding water, the second filter screen 603 on the mounting ring 602 is convenient for filtering impurities in the water source. At the same time, the setting of the lifting rod 604 is convenient for removing the mounting ring 602 from the liquid adding pipe 601.

[0049] When it is necessary to adjust the position of the adjusting plate 7 according to the sealing width, by pulling the pull plate 206, the tension spring 207 extends when the pull plate 206 moves, and at the same time, the pull plate 206 will drive the limiting plate 204 to no longer engage with the limiting groove 205, and then slide with the mounting plate 201 through the adjusting rod 202. When the adjusting rod 202 slides, the position of the adjusting plate 7 is adjusted to adjust the sealing width of the packaging bag. During adjustment, the indicating rod 208 cooperates with the identification block 203 to observe the sliding distance of the adjusting plate 7 so as to make fine adjustments according to the sealing width of the bag opening, thereby improving the adjustment accuracy. After the adjustment is completed, the pull plate 206 is released, so that the pull plate 206 drives the limiting plate 204 to engage with the limiting groove 205 under the action of the tension spring 207, and the limiting plate 204 engages with the adjusting rod 202, so that the adjusted adjusting plate 7 can be quickly fixed, thereby improving the adjustment efficiency of the adjusting plate 7.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A food packaging bag sealing device, characterized in that: The invention comprises a sealing machine body (1), an adjusting structure (2) installed on the sealing machine body (1), an adjusting plate (7) installed on the adjusting structure (2), a sealing structure (3) installed on the sealing machine body (1), a cleaning structure (4) installed on the sealing machine body (1), and a heat dissipation structure (5) installed on the sealing machine body (1); The sealing structure (3) comprises four mounting shafts (301) rotatably connected to the sealing machine body (1) and transmission wheels (302) fixedly connected to the mounting shafts (301), and transmission is provided between every two transmission wheels (302) via a heat-resistant conveyor belt (303), and two heating blocks (304) are installed on the sealing machine body (1); The adjustment structure (2) comprises a mounting plate (201) fixedly connected to the sealing machine body (1) and an adjustment rod (202) slidably connected to the mounting plate (201); a limit plate (204) is slidably connected inside the mounting plate (201); a plurality of limit grooves (205) are provided on the adjustment rod (202); the limit plate (204) is engaged with one of the limit grooves (205); and the limit plate (204) is fixedly connected to the limit plate (204). A pull plate (206) is provided, the pull plate (206) is slidably connected to the mounting plate (201), a tension spring (207) is fixedly connected between the pull plate (206) and the mounting plate (201), the pull plate (206) is in an "L"-shaped structure, the adjustment rod (202) is fixedly connected to the adjustment plate (7), the adjustment rod (202) is fixedly connected to the identification block (203), and the pull plate (206) is fixedly connected to the indication rod (208).

2. A food packaging bag sealing device according to claim 1, characterized in that: The cleaning structure (4) comprises two connecting shafts (401) rotatably connected to the sealing machine body (1) and a cleaning brush (402) mounted on the connecting shafts (401); a pulley (404) is fixedly connected to the connecting shaft (401), and the two pulleys (404) are driven by a belt.

3. A food packaging bag sealing device according to claim 2, characterized in that: The connecting shaft (401) is threadedly connected with a knob (403), and the knob (403) is in conflict with the cleaning brush (402).

4. A food packaging bag sealing device according to claim 3, characterized in that: Two dust hoods (407) are fixedly connected to the sealing machine body (1), a dust box (410) is fixedly connected to the sealing machine body (1), a connecting pipe (408) is fixedly connected between the two dust hoods (407), a dust pipe (409) is fixedly connected to the connecting pipe (408), and the other end of the dust pipe (409) is fixedly connected to the dust box (410).

5. A food packaging bag sealing device according to claim 4, characterized in that: The dust box (410) is installed with a vacuum pump (411), the air intake port of the vacuum pump (411) is installed with a fixed pipe (413), the other end of the fixed pipe (413) is fixedly connected to the dust box (410), a first filter screen (412) is installed in the dust box (410) through a frame, and a collection frame (414) is installed on the dust box (410).

6. A food packaging bag sealing device according to claim 5, characterized in that: The fixed pipe (413) is connected to the top of the first filter (412), and the dust suction pipe (409) is connected to the bottom of the first filter (412). A mounting seat (405) is installed on the sealing machine body (1), and a motor (406) is installed on the mounting seat (405), and one of the connecting shafts (401) is fixedly connected to the output shaft of the motor (406).

7. A food packaging bag sealing device according to claim 1, characterized in that: The heat dissipation structure (5) comprises a heat dissipation plate (501) mounted on the sealing machine body (1) and a pipe (502) mounted on the heat dissipation plate (501); a connecting plate (503) is mounted on the sealing machine body (1); a water tank (504) is fixedly connected to the connecting plate (503); and a radiator (509) is mounted on the water tank (504).

8. A food packaging bag sealing device according to claim 7, characterized in that: A water pump (505) is installed on the connecting plate (503), a first hose (506) is installed at the water inlet of the water pump (505), the other end of the first hose (506) is fixedly connected to the water tank (504), a second hose (507) is installed between the two pipes (502), the second hose (507) is installed at the water outlet of the water pump (505), a third hose (508) is fixedly connected between the two pipes (502), the third hose (508) is installed at the inlet of the radiator (509), a fourth hose (510) is installed at the outlet of the radiator (509), the other end of the fourth hose (510) is connected to the water tank (504), and a fan (511) is installed on the sealing machine body (1).

9. A food packaging bag sealing device according to claim 8, characterized in that: The water tank (504) is provided with a water adding structure (6), the water adding structure (6) comprising a liquid adding pipe (601) installed on the water tank (504) and a mounting ring (602) installed on the liquid adding pipe (601), a threaded cover (606) is threadedly connected to the liquid adding pipe (601), a second filter screen (603) is fixedly connected to the mounting ring (602), a lifting rod (604) is fixedly connected to the mounting ring (602), and a floating rod (605) is installed in the water tank (504).

10. A method for sealing a food packaging bag according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The food packaging bag is transported by the conveying device on the sealing machine body (1), and the food packaging bag is sealed by the sealing structure (3), and the sealing components in the sealing structure (3) are cleaned by the cleaning structure (4) during the sealing process; S2: After the sealing is completed, the sealed portion of the packaging bag is cooled by the heat dissipation structure (5), and at the same time, water can be added to the water storage component in the heat dissipation structure (5) through the water adding structure (6); S3: The position of the adjustment plate (7) is quickly adjusted according to the different sealing widths required for the food packaging bag through the adjustment structure (2).

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