A film guide and covering packaging machine for food packaging

Abstract

This invention belongs to the field of food preservation film packaging technology, and specifically relates to a food preservation film guiding and covering packaging machine, including a base. A first bearing plate, a second bearing plate, and a third bearing plate are fixedly connected to the surface of the base. An electric push rod is fixedly connected to the side wall of the first bearing plate via a bracket. This invention, by setting a guiding component, can perform continuous operation without manual assistance, achieving a higher degree of automation. By setting a transmission component and a lifting component, the transmission component provides power to the lifting component, allowing the device to complete the guiding and covering of the food preservation film and subsequent food packaging work with only one power source, saving operating costs. By setting a packaging mechanism, in conjunction with the transmission and lifting components, after the device completes the guiding and covering of the food preservation film, the packaging mechanism automatically packages the food covered with the food preservation film when the guiding component resets.

Description

Technical Field

[0001] This invention belongs to the field of food preservation film packaging technology, and in particular relates to a food preservation film guiding and covering packaging machine. Background Technology

[0002] Plastic wrap is a type of plastic packaging product, typically made from ethylene through a polymerization reaction. It is convenient, economical, and aesthetically pleasing, and is widely used in food packaging in households, supermarkets, hotels, restaurants, and industrial production. In food preservation, plastic wrap prevents moisture loss, maintaining freshness, and also avoids oxidation caused by contact with air. Furthermore, plastic wrap can be used for cooking and food storage. In some scenarios, food packaging is often accomplished using plastic wrap-guided covering packaging machines.

[0003] A search revealed that patent document CN112319885B discloses a food preservation film packaging guiding and covering device, including a slide, a pressure roller fixedly installed at the bottom of the slide and above the preservation film belt, a connecting rod movably sleeved on the outside of the positioning shaft, a rotating shaft inserted into the slide and rotatably connected at the bottom end of the connecting rod, a toothed disc meshing with a cylindrical section fixedly sleeved on the outside of the rotating shaft, a cutter movably inserted into the inside of the right guide seat, a push plate extending to the top of the notched wheel and fixedly connected to the left side of the cutter, and the roller shaft and the positioning shaft connected by a chain belt.

[0004] The aforementioned existing technologies often have the following problems when used:

[0005] Existing food packaging plastic wrap guiding and covering machines cannot operate continuously, often requiring manual adjustment of the plastic wrap position. After guiding and covering the plastic wrap, manual packaging is often necessary to seal the plastic wrap around the food. Such devices have low automation, resulting in low work efficiency. Furthermore, both guiding and covering the plastic wrap often require separate power sources, leading to high costs. Summary of the Invention

[0006] The purpose of this invention is to address the problems mentioned in the background art, such as the inability to continuously cover food with cling film, the inability to automatically package food after covering with cling film, and the need for an additional power source, resulting in high costs. This invention provides a food packaging cling film guiding and covering machine that can continuously cover food with cling film and automatically package food after covering with cling film. It requires only a single power source to complete the cling film packaging process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a food packaging film guiding and covering packaging machine, comprising a base, wherein a first bearing plate, a second bearing plate, and a third bearing plate are fixedly connected to the surface of the base; an electric push rod is fixedly connected to the side wall of the first bearing plate via a bracket; two first guide rods are symmetrically fixedly connected to the side wall of the first bearing plate; a placement roller is provided on the side wall of the first bearing plate; an adsorption platform is fixedly connected to the side wall of the third bearing plate; multiple through holes are equidistantly provided on the surface of the adsorption platform; an exhaust fan is fixedly connected to the side wall of the third bearing plate; ventilation pipes are connected between the multiple through holes and the exhaust fan; a guiding assembly is provided between the two first guide rods; a transmission assembly is provided on the side wall of the second bearing plate; a threaded rod is rotatably connected to the surface of the base via a bearing; a lifting assembly is provided on the threaded rod; and a packaging mechanism is provided above the base.

[0008] Furthermore, the guiding assembly includes guide blocks that are slidably fitted onto two guide rods of the first type. A fixed plate is fixedly connected to the opposite sidewalls of the two guide blocks. A first rotating shaft and a second rotating shaft are provided above the base. The first and second rotating shafts are rotatably connected to the sidewalls of the two fixed plates of the first type via bearings. A rotating plate is fixedly connected to one opposite end of each of the first and second rotating shafts. Two guide rollers are fixedly connected between the two rotating plates. A gear of the first type is fixedly connected circumferentially to the side end of the first rotating shaft. A gear of the second type is fixedly connected circumferentially to the side end of the second rotating shaft. A rack of the first type is fixedly connected to the surface of the base via a bracket. The first gear meshes with the rack of the first type. A rack of the second type is fixedly connected to the sidewall of the third bearing plate via a bracket. The second gear meshes with the rack of the second type.

[0009] Furthermore, the transmission assembly includes a third rotating shaft fixedly connected to the side wall of the second gear. A second fixing plate is fixedly connected to the side wall of the guide block near the second rotating shaft via a bracket. The third rotating shaft is rotatably connected to the side wall of the second fixing plate via a bearing. A third gear is circumferentially fixedly connected to the third rotating shaft. A third rack is fixedly connected to the base surface via a bracket. The third gear meshes with the third rack. An open sleeve is rotatably connected to the side wall of the second bearing plate via a bearing. A fourth rotating shaft is slidably connected inside the open sleeve. Two limiting sliders are symmetrically fixedly connected to the circumferential side wall of the fourth rotating shaft. The sliders are slidably connected to the openings of the open sleeves. The second fixed plate is fixedly connected to the side wall of the third fixed plate. The fourth rotating shaft is rotatably connected to the side wall of the third fixed plate through a bearing. The third rotating shaft is circumferentially fixedly connected to the first driving bevel gear. The fourth rotating shaft is fixedly connected to the side end of the first driven bevel gear. The first driving bevel gear and the first driven bevel gear mesh with each other. The second bearing plate is rotatably connected to the side wall of the second bearing plate through a bearing. The open sleeve is circumferentially fixedly connected to the side end of the second bearing plate. The fifth rotating shaft is circumferentially fixedly connected to the side end of the second bearing plate. The driving wheel and the driven wheel are connected by a belt drive.

[0010] Furthermore, the lifting assembly includes a second driving bevel gear fixedly connected to the side end of the fifth rotating shaft, a second driven bevel gear fixedly connected circumferentially to the threaded rod, the second driving bevel gear meshing with the second driven bevel gear, a lifting nut threadedly connected to the threaded rod, a limit plate fixedly connected to the side wall of the lifting nut, two second guide rods fixedly connected to the surface of the base, the limit plate slidably sleeved on the two second guide rods, and a lifting bracket fixedly connected to the surface of the limit plate.

[0011] Furthermore, the packaging mechanism includes a hollow support rod fixedly connected to the bottom surface of the lifting support. A disc is fixedly connected to the bottom surface of the hollow support rod. A pressure rod is slidably connected inside the hollow support rod. A pressure plate is fixedly connected to the bottom surface of the pressure rod. A No. 1 spring is fixedly connected between the pressure plate and the disc. The No. 1 spring is sleeved on the outside of the pressure rod. Multiple packaging components are equidistantly arranged between the disc and the pressure plate.

[0012] Furthermore, the packaging assembly includes a first through groove and a second through groove on the surface of the disc. A first connecting rod is hinged to the surface of the pressure plate and is located in the first through groove. A third guide rod is fixedly connected to the side wall of the hollow bearing rod. A moving block is slidably sleeved on the third guide rod. The top end of the first connecting rod is hinged to the bottom surface of the moving block. A push rod is fixedly connected to the side wall of the moving block. A packaging rod is rotatably connected to the inner side wall of the second through groove via a pin. The top end of the packaging rod is hinged to the side end of the push rod.

[0013] Furthermore, a cutting blade is fixedly connected to the side wall of the hollow bearing rod via a bracket. Two No. 4 fixing plates are fixedly connected to the surface of the base. Two clamping plates are provided between the two No. 4 fixing plates. Two No. 4 guide rods are symmetrically fixedly connected to the side walls of the two clamping plates. The four No. 4 guide rods are respectively slidably connected to the side walls of the two No. 4 fixing plates. A No. 2 spring is sleeved on the outside of each of the four No. 4 guide rods. Multiple dust covers are provided on the top of the base.

[0014] Furthermore, the length of the second rack is less than that of the first rack, and the tooth grooves of the second rack are opposite to those of the first rack.

[0015] Compared with existing technologies, the advantages of this food packaging film guiding and covering packaging machine are:

[0016] 1. This invention, by setting up a guiding component, enables continuous operation without manual assistance. Through the cooperation of two gears and two racks with opposite tooth directions, when guiding the covering of the plastic wrap, the two guide rollers rotate in opposite directions twice during the guiding process using the two racks with opposite tooth directions. This allows for the stable extraction of the plastic wrap and the guiding and covering of the food while the guiding component moves. At the same time, after the guiding component resets, the device can directly start the next operation, resulting in a higher degree of automation and higher efficiency.

[0017] 2. This invention incorporates a transmission component and a lifting component. The transmission component provides power to the lifting component. When the device covers the food with plastic wrap, the meshing of gears and racks causes the rotating shaft to rotate. The open sleeve cooperates with the rotating shaft, ensuring that even if the rotating shaft moves, it will not affect the rotation of the open sleeve. Belt drive provides power to the lifting component, allowing the device to complete the guiding and covering of the plastic wrap and subsequent food packaging work with only one power source. This saves costs and also makes the device more efficient.

[0018] 3. By setting up a packaging mechanism, in conjunction with a transmission component and a lifting component, after the device completes the guiding and covering of the plastic wrap, the packaging mechanism automatically packages the food covered with plastic wrap when the guiding component is reset. Furthermore, the packaging mechanism automatically lifts during the next guiding and covering of the plastic wrap to avoid affecting the normal operation of the device. Through the cooperation between the guiding component, transmission component, and lifting component, the device can continuously complete the guiding and covering of plastic wrap and the packaging of food, resulting in a higher degree of automation and improved work efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a food packaging film guiding and covering packaging machine provided by the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of a food packaging film guiding and covering packaging machine to remove the dust cover, provided by the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of a food packaging film guiding and covering packaging machine for removing dust covers from another perspective, provided by the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of a food packaging film guiding and covering packaging machine to remove the dust cover from another perspective, provided by the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of a food packaging film guiding and covering packaging machine to remove the dust cover from another perspective, provided by the present invention.

[0024] Figure 6 This is a three-dimensional sectional view of a food packaging film guiding and covering packaging machine to remove the dust cover, provided by the present invention.

[0025] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0026] Figure 8 for Figure 6 Enlarged view of point B in the middle.

[0027] In the diagram, 1 is the base, 2 is the first bearing plate, 3 is the second bearing plate, 4 is the third bearing plate, 5 is the electric push rod, 6 is the first guide rod, 7 is the placement roller, 8 is the adsorption table, 9 is the exhaust fan, 10 is the threaded rod, 11 is the guide block, 12 is the first fixing plate, 13 is the first rotating shaft, 14 is the second rotating shaft, 15 is the rotating plate, 16 is the guide roller, 17 is the first gear, 18 is the second gear, 19 is the first rack, 20 is the second rack, 21 is the third rotating shaft, 22 is the second fixing plate, 23 is the third gear, 24 is the third rack, 25 is the open sleeve, 26 is the fourth rotating shaft, 27 is the limiting slider, and 28 is the third fixing plate. Plate, 29 Drive bevel gear No. 1, 30 Driven bevel gear No. 1, 31 Shaft No. 5, 32 Drive wheel, 33 Driven wheel, 34 Drive bevel gear No. 2, 35 Driven bevel gear No. 2, 36 Lifting nut, 37 Limiting plate, 38 Guide rod No. 2, 39 Lifting bracket, 40 Hollow bearing rod, 41 Disc, 42 Pressure rod, 43 Pressure plate, 44 Through slot No. 1, 45 Through slot No. 2, 46 Connecting rod No. 1, 47 Guide rod No. 3, 48 Moving block, 49 Push rod, 50 Packaging rod, 51 Cutting knife, 52 Fixing plate No. 4, 53 Clamping plate, 54 Guide rod No. 4. Detailed Implementation

[0028] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0029] like Figures 1-8 As shown, a food packaging film guiding and covering packaging machine includes a base 1. A first bearing plate 2, a second bearing plate 3, and a third bearing plate 4 are fixedly connected to the surface of the base 1. An electric push rod 5 is fixedly connected to the side wall of the first bearing plate 2 via a bracket. Two first guide rods 6 are symmetrically fixedly connected to the side wall of the first bearing plate 2. A placement roller 7 is provided on the side wall of the first bearing plate 2. An adsorption platform 8 is fixedly connected to the side wall of the third bearing plate 4. Multiple through holes are equidistantly arranged on the surface of the adsorption platform 8. A... The exhaust fan 9 has ventilation pipes connected to multiple through holes. A guide assembly is provided between the two guide rods 6. The guide assembly includes guide blocks 11 that are slidably fitted onto the two guide rods 6. A fixing plate 12 is fixedly connected to the opposite sidewalls of the two guide blocks 11. A first rotating shaft 13 and a second rotating shaft 14 are provided above the base 1. The first rotating shaft 13 and the second rotating shaft 14 are rotatably connected to the sidewalls of the two fixing plates 12 through bearings. Rotating plates 15 are fixedly connected to opposite ends of the second rotating shaft 14. Two guide rollers 16 are fixedly connected between the two rotating plates 15. A gear 17 is fixedly connected circumferentially to the side end of the first rotating shaft 13, and a gear 18 is fixedly connected circumferentially to the side end of the second rotating shaft 14. A rack 19 is fixedly connected to the surface of the base 1 via a bracket. The gear 17 meshes with the rack 19. A rack 20 is fixedly connected to the side wall of the third bearing plate 4 via a bracket. The gear 18 meshes with the rack 20. The base 1 has two fixed plates 52 of type 4 fixed plate fixedly connected to its surface. Two clamping plates 53 are provided between the two fixed plates 52. Two guide rods 54 of type 4 are symmetrically fixedly connected to the side walls of the two clamping plates 53. The four guide rods of type 4 are slidably connected to the side walls of the two fixed plates 52. A spring of type 2 is sleeved on the outside of each of the four guide rods of type 4 fixed plate 52 for fixing the food. The length of the rack of type 2 is less than that of the rack of type 1 19, and the tooth groove direction of rack of type 2 is opposite to that of rack of type 1 19.

[0030] In use, place the plastic wrap on the placement roller 7, then pull out a section of plastic wrap and place it between the two guide rollers 16. Next, secure the food between the two clamping plates 53. Start the electric push rod 5 and the exhaust fan 9. The output end of the electric push rod 5 will move towards the exhaust fan 9. At this time, the two guide blocks 11 will slide on the first guide rod 6, and the first gear 17 will mesh with the first rack 19, causing it to rotate. This rotates the rotating plate 15, which in turn causes the two guide rollers 16 to revolve. The friction from the revolve of the two guide rollers 16 causes the plastic wrap to adhere tightly to them. Then, the electric push rod 5 drives the guide component to continue moving. When it moves to the position of the second rack 20, the second gear 18 meshes with the second rack 20 and rotates, causing the two guide rollers 16 to revolve in opposite directions, thereby releasing the limit on the plastic wrap. At this time, the plastic wrap has been sent to the adsorption table 8. Under the action of the exhaust fan 9, one end of the plastic wrap will be adsorbed on the adsorption table 8. The electric push rod 5 is turned off, and the output end retracts. Under the adsorption of the exhaust fan 9, the plastic wrap remains covered and is not affected by the reset of the guide component. The length of the second rack 20 is less than that of the first rack to ensure that the plastic wrap can be sent to the position of the adsorption table 8.

[0031] A guide assembly is provided between the two guide rods 6. A transmission assembly is provided on the side wall of the second bearing plate 3. A threaded rod 10 is rotatably connected to the surface of the base 1 via a bearing. A lifting assembly is provided on the threaded rod 10. A packaging mechanism is provided above the base 1. The transmission assembly includes a third rotating shaft 21 fixedly connected to the side wall of the second gear 18. A second fixing plate 22 is fixedly connected to the side wall of the guide block 11 near the second rotating shaft 14 via a bracket. The third rotating shaft 21 is rotatably connected to the side wall of the second fixing plate 22 via a bearing. A third gear 23 is fixedly connected to the circumference of the third rotating shaft 21. A third rack 24 is fixedly connected to the surface of the base 1 via a bracket. The third gear 23 meshes with the third rack 24. An opening is rotatably connected to the side wall of the second bearing plate 3 via a bearing. Sleeve 25, an open sleeve 25 has a sliding connection to a fourth rotating shaft 26. Two limiting sliders 27 are symmetrically fixed to the circumferential sidewall of the fourth rotating shaft 26, and these two limiting sliders 27 are slidably connected within the opening of the open sleeve 25. A third fixing plate 28 is fixedly connected to the sidewall of a second fixing plate. The fourth rotating shaft 26 is rotatably connected to the sidewall of the third fixing plate 28 via a bearing. A first driving bevel gear 29 is circumferentially fixed to the third rotating shaft 21. A first driven bevel gear 30 is fixedly connected to the side end of the fourth rotating shaft 26. The first driving bevel gear 29 meshes with the first driven bevel gear 30. A fifth rotating shaft 31 is rotatably connected to the sidewall of a second bearing plate 3 via a bearing. A driving wheel 32 is circumferentially fixed to the side end of the open sleeve 25. The fifth rotating shaft 31... A driven wheel 33 is circumferentially fixedly connected to the side end of the base 1. The driving wheel 32 and the driven wheel 33 are connected by a belt drive. The lifting assembly includes a second drive bevel gear 34 fixedly connected to the side end of the fifth rotating shaft 31. A second driven bevel gear 35 is circumferentially fixedly connected to the threaded rod 10. The second drive bevel gear 34 and the second driven bevel gear 35 mesh. A lifting nut 36 is threadedly connected to the threaded rod 10. A limit plate 37 is fixedly connected to the side wall of the lifting nut 36. Two second guide rods 38 are fixedly connected to the surface of the base 1. The limit plate 37 is slidably sleeved on the two second guide rods 38. A lifting bracket 39 is fixedly connected to the surface of the limit plate 37. The packaging mechanism includes a hollow bearing rod 40 fixedly connected to the bottom surface of the lifting bracket 39. A disc 41 is fixedly connected to the bottom surface of the hollow support rod 40. A pressure rod 42 is slidably connected inside the hollow support rod 40. A pressure plate 43 is fixedly connected to the bottom surface of the pressure rod 42. A first spring is fixedly connected between the pressure plate 43 and the disc 41. The first spring is sleeved on the outside of the pressure rod 42. Multiple packaging components are equidistantly arranged between the disc 41 and the pressure plate 43. The packaging components include a first through groove 44 and a second through groove 45 on the surface of the disc 41. A first connecting rod 46 is hinged to the surface of the pressure plate 43. The first connecting rod is located in the first through groove 44. A third guide rod 47 is fixedly connected to the side wall of the hollow support rod 40. A moving block 48 is slidably sleeved on the third guide rod 47. The top of the first connecting rod 46 is hinged to the bottom surface of the moving block 48. A push rod 49 is fixedly connected to the side wall of the moving block 48.The inner wall of the second channel 45 is rotatably connected to a packaging rod 50 via a pin. The top end of the packaging rod 50 is hinged to the side end of the push rod 49. A cutting blade 51 is fixedly connected to the side wall of the hollow support rod 40 via a bracket for cutting the plastic wrap.

[0032] After the plastic wrap is applied, the guide assembly resets under the action of the electric push rod 5. At this time, gear 23 and rack 24 mesh, causing gear 23 to rotate. This rotation drives shaft 21 and drive bevel gear 29 to rotate. Through the meshing of the bevel gears, shaft 26 and driven bevel gear 30 rotate. The rotation of shaft 26, via two limiting sliders 27, limits the opening, thus opening the opening. When sleeve 25 rotates, even if shaft 26 slides within open sleeve 25, it will not affect the transmission. The rotation of open sleeve 25 drives drive wheel 32 to rotate, which in turn drives driven wheel 33 and shaft 31 to rotate via belt drive. Shaft 31 rotates, and using the bevel gear set at its side end, drives threaded rod 10 to rotate. When threaded rod 10 rotates, lifting nut 36, limited by limit plate 37 and two guide rods 38, will not rotate with the threaded rod, but will only rotate along threaded rod 10. The 0 unit moves up and down, which in turn drives the packaging mechanism to move up and down via the lifting bracket. When the guide component resets, the packaging mechanism moves downward, causing the pressure plate 43 to move downward. When the pressure plate 43 contacts the cling film, it presses the cling film towards the food until it contacts the food. At this point, due to the resistance of the guide roller 16, the downward-moving cutter cuts the cling film. The continuing-moving pressure plate 43, after indirectly contacting the food through the cling film, receives an upward thrust, causing the pressure rod 42 and the pressure plate 43 to move upward, thereby causing the first connection... The swing of rod 46 causes the moving block 48 to move along the guide rod 47 towards the edge of the disc 41, which in turn drives the push rod 49. The moving push rod 49 causes the packaging rods 50 to swing, and the bottom ends of multiple packaging rods 50 swing towards the pressure plate 43, thereby completing the wrapping and packaging of food with plastic wrap. The cooperation between the packaging mechanism, the guide component, the transmission component, and the lifting component enables the device to continuously complete the guidance and covering of plastic wrap and the packaging of food with plastic wrap, resulting in a higher degree of automation and improved work efficiency.

[0033] The working principle of this invention is as follows:

[0034] In use, place the plastic wrap on the placement roller 7, then pull out a section of plastic wrap and place it between the two guide rollers 16. Next, secure the food between the two clamping plates 53. Start the electric push rod 5 and the exhaust fan 9. The output end of the electric push rod 5 will move towards the exhaust fan 9. At this time, the two guide blocks 11 will slide on the first guide rod 6, and the first gear 17 will mesh with the first rack 19, causing it to rotate. This rotates the rotating plate 15, which in turn causes the two guide rollers 16 to revolve. The friction from the revolve of the two guide rollers 16 causes the plastic wrap to adhere tightly to them. Then, the electric push rod 5 drives the guide component to continue moving. When it moves to the position of the second rack 20, the second gear 18 meshes with the second rack 20 and rotates, causing the two guide rollers 16 to revolve in opposite directions, thereby releasing the limit on the plastic wrap. At this time, the plastic wrap has been sent to the adsorption table 8. Under the action of the exhaust fan 9, one end of the plastic wrap will be adsorbed on the adsorption table 8. The electric push rod 5 is turned off, and the output end retracts. Under the adsorption of the exhaust fan 9, the plastic wrap remains covered and is not affected by the reset of the guide component. The length of the second rack 20 is less than that of the first rack to ensure that the plastic wrap can be sent to the position of the adsorption table 8.

[0035] After the plastic wrap is applied, the guide assembly resets under the action of the electric push rod 5. At this time, gear 23 and rack 24 mesh, causing gear 23 to rotate. This rotation drives shaft 21 and drive bevel gear 29 to rotate. Through the meshing of the bevel gears, shaft 26 and driven bevel gear 30 rotate. The rotation of shaft 26, via two limiting sliders 27, limits the opening, thus opening the opening. When sleeve 25 rotates, even if shaft 26 slides within open sleeve 25, it will not affect the transmission. The rotation of open sleeve 25 drives drive wheel 32 to rotate, which in turn drives driven wheel 33 and shaft 31 to rotate via belt drive. Shaft 31 rotates, and using the bevel gear set at its side end, drives threaded rod 10 to rotate. When threaded rod 10 rotates, lifting nut 36, limited by limit plate 37 and two guide rods 38, will not rotate with the threaded rod, but will only rotate along threaded rod 10. The 0 unit moves up and down, which in turn drives the packaging mechanism to move up and down via the lifting bracket. When the guide component resets, the packaging mechanism moves downward, causing the pressure plate 43 to move downward. When the pressure plate 43 contacts the cling film, it presses the cling film towards the food until it contacts the food. At this point, due to the resistance of the guide roller 16, the downward-moving cutter cuts the cling film. The continuing-moving pressure plate 43, after indirectly contacting the food through the cling film, receives an upward thrust, causing the pressure rod 42 and the pressure plate 43 to move upward, thereby causing the first connection... The swing of rod 46 causes the moving block 48 to move along the guide rod 47 towards the edge of the disc 41, which in turn drives the push rod 49. The moving push rod 49 causes the packaging rods 50 to swing, and the bottom ends of multiple packaging rods 50 swing towards the pressure plate 43, thereby completing the wrapping and packaging of food with plastic wrap. The cooperation between the packaging mechanism, the guide component, the transmission component, and the lifting component enables the device to continuously complete the guidance and covering of plastic wrap and the packaging of food with plastic wrap, resulting in a higher degree of automation and improved work efficiency.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A food packaging film guiding and covering packaging machine, comprising a base (1), characterized in that, The base (1) is fixedly connected to a first bearing plate (2), a second bearing plate (3), and a third bearing plate (4). The side wall of the first bearing plate (2) is fixedly connected to an electric push rod (5) via a bracket. The side wall of the first bearing plate (2) is symmetrically fixedly connected to two first guide rods (6). The side wall of the first bearing plate (2) is provided with a placement roller (7). The side wall of the third bearing plate (4) is fixedly connected to an adsorption platform (8). The surface of the adsorption platform (8) is provided with multiple through holes at equal intervals. The side wall of the third bearing plate (4) is fixedly connected to an exhaust fan (9). The multiple through holes are connected to the exhaust fan (9) via ventilation pipes. A guide assembly is provided between the two first guide rods (6). The side wall of the second bearing plate (3) is provided with a transmission assembly. The surface of the base (1) is rotatably connected to a threaded rod (10) via a bearing. A lifting assembly is provided on the threaded rod (10). A packaging mechanism is provided above the base (1). The guiding assembly includes guide blocks (11) that are slidably fitted onto two guide rods (6). A fixing plate (12) is fixedly connected to the opposite sidewalls of each guide block (11). A first rotating shaft (13) and a second rotating shaft (14) are provided above the base (1). The first rotating shaft (13) and the second rotating shaft (14) are rotatably connected to the sidewalls of the two fixing plates (12) via bearings. A rotating plate (15) is fixedly connected to one end of each rotating shaft (13) and the second rotating shaft (14). Two guide rollers (16) are fixedly connected between the two rotating plates (15). A first gear (17) is circumferentially fixed to the side end of the first rotating shaft (13), and a second gear (18) is circumferentially fixed to the side end of the second rotating shaft (14). A first rack (19) is fixedly connected to the surface of the base (1) via a bracket. The first gear (17) meshes with the first rack (19). A second rack (20) is fixedly connected to the side wall of the third bearing plate (4) via a bracket. The second gear (18) meshes with the second rack (20). The length of the second rack (20) is less than that of the first rack (19), and the tooth grooves of the second rack (20) are opposite to those of the first rack (19).

2. The food packaging film guiding and covering packaging machine according to claim 1, characterized in that, The transmission assembly includes a third rotating shaft (21) fixedly connected to the side wall of the second gear (18). The side wall of the guide block (11) near the second rotating shaft (14) is fixedly connected to a second fixing plate (22) via a bracket. The third rotating shaft (21) is rotatably connected to the side wall of the second fixing plate (22) via a bearing. The third rotating shaft (21) is circumferentially fixedly connected to a third gear (23). The surface of the base (1) is fixedly connected to a third rack (24) via a bracket. The third gear (23) meshes with the third rack (24). The side wall of the second bearing plate (3) is rotatably connected to an open sleeve (25) via a bearing. The open sleeve (25) is slidably connected to a fourth rotating shaft (26). The circumferential side wall of the fourth rotating shaft (26) is symmetrically fixedly connected to two limiting sliders (27). (27) are slidably connected to the opening of the open sleeve (25). The second fixed plate is fixedly connected to the side wall of the third fixed plate (28). The fourth rotating shaft (26) is rotatably connected to the side wall of the third fixed plate (28) through the bearing. The third rotating shaft (21) is circumferentially fixedly connected to the first driving bevel gear (29). The fourth rotating shaft (26) is fixedly connected to the side end of the first driven bevel gear (30). The first driving bevel gear (29) meshes with the first driven bevel gear (30). The second bearing plate (3) is rotatably connected to the side wall of the fifth rotating shaft (3) through the bearing. The opening sleeve (25) is circumferentially fixedly connected to the side end of the driving wheel (32). The fifth rotating shaft (31) is circumferentially fixedly connected to the side end of the fifth rotating shaft (31). The driving wheel (32) and the driven wheel (33) are connected by belt drive.

3. A food packaging film guiding and covering packaging machine according to claim 2, characterized in that, The lifting assembly includes a second drive bevel gear (34) fixedly connected to the side end of the fifth rotating shaft (31), a second driven bevel gear (35) fixedly connected to the circumference of the threaded rod (10), the second drive bevel gear (34) meshing with the second driven bevel gear (35), a lifting nut (36) threadedly connected to the threaded rod (10), a limit plate (37) fixedly connected to the side wall of the lifting nut (36), two second guide rods (38) fixedly connected to the surface of the base (1), the limit plate (37) slidingly sleeved on the two second guide rods (38), and a lifting bracket (39) fixedly connected to the surface of the limit plate (37).

4. A food packaging film guiding and covering packaging machine according to claim 3, characterized in that, The packaging mechanism includes a hollow support rod (40) fixedly connected to the bottom surface of the lifting bracket (39). A disc (41) is fixedly connected to the bottom surface of the hollow support rod (40). A pressure rod (42) is slidably connected inside the hollow support rod (40). A pressure plate (43) is fixedly connected to the bottom surface of the pressure rod (42). A first spring is fixedly connected between the pressure plate (43) and the disc (41). The first spring is sleeved on the outside of the pressure rod (42). Multiple packaging components are equidistantly arranged between the disc (41) and the pressure plate (43).

5. A food packaging film guiding and covering packaging machine according to claim 4, characterized in that, The packaging assembly includes a first through groove (44) and a second through groove (45) on the surface of the disc (41). A first connecting rod (46) is hinged to the surface of the pressure plate (43). The first connecting rod is located in the first through groove (44). A third guide rod (47) is fixedly connected to the side wall of the hollow bearing rod (40). A moving block (48) is slidably sleeved on the third guide rod (47). The top end of the first connecting rod (46) is hinged to the bottom surface of the moving block (48). A push rod (49) is fixedly connected to the side wall of the moving block (48). A packaging rod (50) is rotatably connected to the inner side wall of the second through groove (45) through a pin. The top end of the packaging rod (50) is hinged to the side end of the push rod (49).

6. A food packaging film guiding and covering packaging machine according to claim 4, characterized in that, The hollow support rod (40) has a cutting blade (51) fixedly connected to its side wall by a bracket. The base (1) has two No. 4 fixing plates (52) fixedly connected to its surface. Two clamping plates (53) are provided between the two No. 4 fixing plates (52). The side walls of the two clamping plates (53) are symmetrically fixedly connected to two No. 4 guide rods (54). The four No. 4 guide rods (54) are respectively slidably connected to the side walls of the two No. 4 fixing plates (52). The four No. 4 guide rods (54) are all sleeved with No. 2 springs. The base (1) has multiple dust covers on its top.

Images