Packaging equipment for bowl cover film and packaging method thereof

Abstract

The invention discloses packaging equipment for bowl cover films and a packaging method thereof, and belongs to the related field of packaging film processing technology.The packaging equipment comprises a conveying frame and a fixed base, the conveying frame is fixedly installed on the inner side of one end of the fixed base, a lifting frame is arranged in the middle of the upper end of the fixed base, and a punching part is movably installed in the middle of the inner side of the lifting frame; a lower unwinding rod and an upper unwinding rod are arranged in the fixed base and located below the punching part, the lower unwinding rod is arranged on the lower portion of the upper unwinding rod, the lower unwinding rod and the upper unwinding rod are arranged in a staggered mode, and material conveyors are arranged on the outer surface of the upper end of the fixed base and located on the two sides of the lifting frame. Two groups of side rotating bottom plates are movably mounted on the outer surface of the upper end of the fixed base and located below the punching part; and the upper unwinding rod and the lower unwinding rod are matched for use, so that the device is provided with a bowl cover film moving and packaging structure, the packaging operation can be automatically completed after the bowl cover film is shaped, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field related to packaging film processing technology, and more specifically relates to a packaging device for a bowl cover film and a packaging method thereof. Background Art

[0002] Bowl cover film, also known as dustproof film or sealing film, is mainly used to prevent dust, keep warm and prevent liquid from splashing, ensuring the hygiene and safety of food or liquid in the bowl. The packaging equipment mainly uses punching to cut and shape several layers of bowl cover film, and then uses a mobile laminating structure to package it during the transportation of the bowl cover mold.

[0003] The application document with publication number CN110758831A discloses a packaging device, in which a clamping device, a bag opening device and a bag filling device are arranged, wherein the clamping device includes a turntable and a plurality of clamps, the turntable is rotatably arranged, and the plurality of clamps are distributed on the turntable along the circumference of the turntable, the clamp includes a first clamping part and a second clamping part, the first clamping part and the second clamping part are respectively used to clamp the two edges of the packaging bag in a one-to-one correspondence, and the first clamping part and the second clamping part can be arranged close to or far away from each other; the bag opening device is used to open the packaging bag clamped by the clamping device; the bag filling device includes a bag filling clamping part and a bag filling moving part, the bag filling clamping part is used to clamp or release at least one product, and the bag filling moving part is used to drive the bag filling clamping part to move, so that the bag filling clamping part clamps the product and puts the product into the packaging bag.

[0004] The bowl cover film is a thin film material with a specific shape. The packaging operation is usually done manually after the bowl cover film is shaped. Conventional packaging equipment cannot be connected to the bowl cover film shaping equipment, which reduces its work efficiency. At the same time, due to the soft texture of the bowl cover film, conventional packaging equipment cannot complete the automatic bagging operation of several groups of bowl cover films; secondly, when performing the bowl cover film packaging operation, the traditional equipment cannot be adjusted arbitrarily according to the number of layers of the bowl cover film, so that the packaging equipment can only package a fixed number of bowl cover films, which reduces its flexibility in use; bowl cover films of different quantities and specifications have different thicknesses, and traditional packaging equipment cannot flexibly adapt to bowl cover film raw materials of different thicknesses during the bowl cover film packaging and conveying operation, which reduces its flexibility in use. Summary of the invention

[0005] The purpose of the present invention is to provide a packaging device and a packaging method for bowl cover films, which can solve the existing problems.

[0006] The problem to be solved by the present invention is: 1. The bowl cover film is a film material with a specific shape. The packaging operation is usually done manually after the bowl cover film is shaped. Conventional packaging equipment cannot be connected to the bowl cover film shaping equipment, which reduces the work efficiency. At the same time, due to the soft texture of the bowl cover film, conventional packaging equipment cannot complete the automatic bagging operation of several groups of bowl cover films; 2. Secondly, when the traditional equipment is performing the bowl cover film packaging operation, it cannot be adjusted arbitrarily according to the number of layers of the bowl cover film, so that the packaging equipment can only package a fixed number of bowl cover films, which reduces its flexibility in use; 3. At the same time, bowl cover films of different quantities and specifications have different thicknesses, and traditional packaging equipment cannot flexibly apply bowl cover film materials of different thicknesses during the packaging and conveying operations of the bowl cover film, which reduces its flexibility in use.

[0007] The purpose of the present invention can be achieved through the following technical solutions: A packaging device for bowl cover film comprises a feed frame and a fixed base, the feed frame is fixedly installed on the inner side of one end of the fixed base, a lifting frame is arranged at the middle part of the upper end of the fixed base, and a punching piece is movably installed at the inner middle position of the lifting frame, a lower unwinding rod and an upper unwinding rod are arranged inside the fixed base below the punching piece, the lower unwinding rod is arranged at the lower position of the upper unwinding rod, and the lower unwinding rod and the upper unwinding rod are staggered, the upper end outer surface of the fixed base is located on both sides of the lifting frame, and feeders are arranged, the upper end outer surface of the fixed base is located below the punching piece and two groups of side rotating bottom plates are movably installed, and the two groups of side rotating bottom plates are symmetrically arranged.

[0008] As a further technical solution of the present invention, a roller, a sealer and a cutting frame are sequentially arranged on one side of the upper unwinding rod inside the fixed base, the sealer is arranged between the roller and the cutting frame, and a plurality of groups of feed rollers are arranged on one side of the lower unwinding rod inside the fixed base, a rolling rod is elastically installed at the lower part of the roller, and the roller and the rolling rod are elastically connected by an elastic top rod. When the several layers of film bodies after punching and cutting fall down, the lower and upper layers of packaging film are respectively released by the lower unwinding rod and the upper unwinding rod, and the film body falls onto the packaging film released by the lower unwinding rod, and the packaging film drives the film body forward with the rotation of the feed roller, and when the film body passes through the lower surface of the upper unwinding rod, the upper packaging film can be released by the upper unwinding rod, so that the film body of the bowl cover film is placed between the two packaging films, and during the movement of the film body, the roller, the sealer and the cutting frame are respectively used to perform rolling shaping, sealing operations and slitting processes on it.

[0009] As a further technical solution of the present invention, the punching part includes a top plate and a punching sleeve. The top plate is movably installed inside the punching sleeve. The top plate and the punching sleeve are elastically connected by a spring. The lower end of the punching sleeve has an annular incision structure. When the side rotating bottom plate is opened, the annular incision at the lower end of the punching sleeve can be used to complete the punching operation of several layers of bowl cover membranes, so that the circular bowl cover membrane is placed inside the punching sleeve, and then the spring is used to push the top plate down, so that the top plate pushes out several layers of membrane bodies retained in the punching sleeve, so that the membrane bodies are discharged downward.

[0010] As a further technical solution of the present invention, the upper end of the punching sleeve is driven by a hydraulic rod, and lifting guide rods are provided on both sides of the punching sleeve. The lifting guide rods are movably sleeved on the inner side of the lifting frame. The hydraulic rod can be used to drive the punching sleeve to move up and down, and the setting of the lifting guide rod can improve the accuracy of the punching sleeve when it moves up and down.

[0011] As a further technical solution of the present invention, the punching piece includes a punching sleeve and a threaded sleeve. The threaded sleeve is movably sleeved on the inner side of the upper end of the punching sleeve. A threaded groove is provided on the inner side of the punching sleeve. The punching sleeve and the threaded sleeve are connected by threads. The middle position of the upper end of the threaded sleeve is driven by a hydraulic rod. The user can rotate the threaded sleeve according to the number of layers and thickness of the bowl cover film to make the threaded sleeve move up and down on the inner side of the punching sleeve, adjust the volume between the threaded sleeve and the punching sleeve, so that the threaded sleeve can accommodate bowl cover films of any number of layers and thickness inside the punching sleeve, thereby improving the flexibility of the punching piece when used.

[0012] As a further technical solution of the present invention, the internal movably sleeves of the punching sleeve and the threaded sleeve are connected with a top plate, and two groups of lifting push rods are installed on the upper end of the top plate. The lifting push rods are movably sleeved on the inner side of the upper end of the threaded sleeve, and the outer side of the hydraulic rod is movably sleeved with a lifting plate. In order to meet the ejection operation of the punching sleeve and the threaded sleeve under different depth conditions, the lifting push rods are provided so that the top plate has a lifting adjustment structure, so that the top plate can be adjusted according to the depth of the punching sleeve and the threaded sleeve. During operation, the lifting push rods are set at a corresponding height. When the threaded sleeve moves up, the top end of the threaded sleeve abuts against the lower surface of the lifting plate, so that the lifting push rods drive the top plate to move downward, thereby ejecting the membrane body of the punching sleeve and the threaded sleeve.

[0013] As a further technical solution of the present invention, lifting sleeves are fixedly installed on both sides of the lifting plate, and the lifting sleeves are movably sleeved on the outer surface of the lifting frame. The outer surface of the lifting push rod is movably sleeved on a limiting cap. By rotating the limiting cap, the position of the limiting cap on the lifting push rod can be adjusted. The limiting cap is used to limit the use length of the lifting push rod, and the lifting sleeve is locked on the outer surface of the lifting frame by a bolt body. The use height of the lifting plate can be adjusted by the lifting sleeve, so that the lifting plate can be flexibly used in conjunction with the limiting cap, thereby improving its flexibility.

[0014] As a further technical solution of the present invention, the fixed base and the side-rotating bottom plate are movably connected via a fixed frame, and a transverse push rod used in conjunction with the fixed frame is provided at the bottom of the fixed frame. A clamping wheel is movably mounted on the outer surface of one end of the transverse push rod, and the clamping wheel is driven to move by the transverse push rod, so that the clamping wheel slides in contact with the lower surface of the side-rotating bottom plate, thereby completing the closing or opening operation of the side-rotating bottom plate.

[0015] As a further technical solution of the present invention, the lifting frame includes an upper roller and a lower roller, the upper roller is movably mounted on the upper part of the lower roller, and a lifting rod is arranged between the upper roller and the lower roller, the lower part of the lower roller is driven by a motor, and the height between the upper roller and the lower roller can be adjusted by the lifting rod, so that several layers of raw materials of the bowl cover film can pass between the upper roller and the lower roller.

[0016] A packaging method for a bowl cover film packaging device, comprising the following steps: Step 1: stack several layers of bowl cover film raw materials, move several layers of bowl cover film raw materials to the bottom of the punching piece through the feeder, use the hydraulic rod to drive the punching sleeve to move downward, so that the punching sleeve punches several layers of bowl cover film raw materials, so that the circular bowl cover film is placed inside the punching sleeve, and when the punching sleeve moves upward, the spring is used to push the top plate downward, so that the top plate pushes out several layers of film bodies retained in the punching sleeve, so that the film bodies are discharged downward; Step 2: Open the side rotating bottom plate, and several layers of film fall into the inside of the fixed base. The upper and lower layers of packaging film are released respectively by the lower reel rod and the upper reel rod. The film falls onto the packaging film released by the lower reel rod, and the packaging film drives the film forward as the feed roller rotates. When the film passes through the lower surface of the upper reel rod, the upper packaging film is released by the upper reel rod, so that the film of the bowl cover film is placed between the two packaging films. During the movement of the film, the roller, sealer and cutting frame are used to roll and shape, seal and slit the packaging film in turn.

[0017] Beneficial effects of the present invention: 1. By setting a side rotating bottom plate and a punching piece, when the packaging equipment of the bowl cover film is used, the upper unwinding rod and the lower unwinding rod are used to make it have a bowl cover film mobile packaging structure, which can automatically complete the packaging operation after the bowl cover film is finalized, thereby improving work efficiency; During operation, firstly, several layers of bowl cover film raw materials are stacked, and several layers of bowl cover film are passed between the upper roller and the lower roller, and several layers of bowl cover film raw materials are moved to the bottom of the punching part through the feeder, and the punching sleeve is driven downward by the hydraulic rod to make the punching sleeve punch and cut several layers of bowl cover film raw materials. The side rotating bottom plate supports the lower part of the bowl cover film raw materials, so that the circular bowl cover film is placed inside the punching sleeve after punching, and the top plate is pushed upward by the bowl cover film, so that the top plate squeezes the spring, so that the punching sleeve completes the storage operation of the bowl cover film. After the bowl cover film is finalized, the horizontal push rod is used to drive the card wheel to move, so that the card wheel slides and contacts with the lower surface of the side rotating bottom plate, so that the side rotating bottom plate completes the closing or opening operation, opens the rotating bottom plate, and then uses the spring to push the top plate down, so that the top plate The several layers of film retained in the punching sleeve are ejected and discharged downward. When the side rotating bottom plate is opened, the several layers of film fall into the inside of the fixed base, and the upper and lower layers of packaging film are released respectively by the lower reel rod and the upper reel rod, and the film falls onto the packaging film released by the lower reel rod, and the packaging film drives the film forward with the rotation of the feed roller. When the film passes through the lower surface of the upper reel rod, the upper reel rod is used to release the upper packaging film, so that the film of the bowl cover film is placed between the two packaging films. During the movement of the film, the roller, sealer and cutting frame are used to roll and shape, seal and slit the packaging film in turn, so that the packaging of the bowl cover film can be completed synchronously during the shaping process of the bowl cover film, thereby improving its work efficiency.

[0018] 2. By setting the punching sleeve and the threaded sleeve, when the packaging equipment of the bowl cover film is used, the punching space can be adjusted arbitrarily according to the number of layers and thickness of the bowl cover film, so as to facilitate the packaging of different quantities of bowl cover films and improve the flexibility of its use; When in use, the threaded sleeve is rotated to make the threaded sleeve move up and down on the inner side of the punching sleeve, so as to adjust the volume between the threaded sleeve and the punching sleeve, so that the threaded sleeve can accommodate bowl cover film of any number of layers and thickness inside the punching sleeve, thereby improving the flexibility of the punching piece when in use. In order to meet the ejection operation of the punching sleeve and the threaded sleeve under different depth conditions, a lifting push rod is provided to make the top plate have a lifting adjustment structure, so that the top plate can be adjusted according to the depth of the punching sleeve and the threaded sleeve. During operation, the lifting push rod is set at a corresponding height. When the threaded sleeve moves up, the top end of the lifting push rod abuts against the lower surface of the lifting plate, so that the lifting push rod drives the top plate to move downward, thereby ejecting the film body in the punching sleeve and the threaded sleeve, and the use length of the lifting push rod is limited by the limit cap, and the lifting clamping sleeve is locked on the outer surface of the lifting frame by the bolt body. The use height of the lifting plate can be adjusted by the lifting clamping sleeve, so that the lifting plate can be flexibly used in conjunction with the limit cap, thereby improving its flexibility.

[0019] 3. By setting a feeder, when the packaging equipment of the bowl cover film is used, it has a lifting auxiliary feeding structure, which can complete the conveying operation of bowl cover film raw materials of different thicknesses and layers, thereby improving its application range; During operation, the height between the upper roller and the lower roller can be adjusted by using the lifting rod, so that several layers of bowl cover film materials can pass between the upper roller and the lower roller. The user places several layers of bowl cover film between the upper roller and the lower roller, and then uses the lifting rod to drive the upper roller to move downward, so that the upper roller is close to the upper surface of the bowl cover film, so that the bowl cover film material is clamped between the upper roller and the lower roller, and the lower roller is driven to rotate by the motor, thereby completing the conveying operation of bowl cover film materials of different thicknesses and layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a packaging device for a bowl cover film of the present invention; Figure 2 It is an internal structure diagram of a fixed base in a packaging device for a bowl cover film of the present invention; Figure 3 It is an internal structure diagram of a punching part in a packaging device for a bowl cover film of the present invention; Figure 4 It is an overall structural diagram of a punching part in a packaging device for a bowl cover film of the present invention; Figure 5 It is an overall structural diagram of a side-rotating bottom plate in a packaging device for a bowl cover film of the present invention; Figure 6 It is an overall structural diagram of a feeder in a packaging device for a bowl cover film of the present invention; Figure 7 It is a diagram of the internal structure of a roller in a packaging device for a bowl cover film according to the present invention.

[0022] In the figure: 1. feeding rack; 2. fixed base; 3. side rotating bottom plate; 4. punching part; 5. lifting rack; 6. feeding device; 7. feeding roller; 8. lower winding rod; 9. film body; 10. upper winding rod; 11. roller; 12. sealer; 13. cutting rack; 14. top plate; 15. spring; 16. punching sleeve; 17. lifting guide rod; 18. hydraulic rod; 19. lifting push rod; 20. thread groove; 21. lifting clamping sleeve; 22. thread sleeve; 23. limit cap; 24. lifting plate; 25. clamping wheel; 26. horizontal push rod; 27. fixed frame; 28. upper roller; 29. ​​lifting rod; 30. motor; 31. lower roller; 32. elastic push rod; 33. rolling rod. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] like Figure 1 As shown, a packaging device for bowl cover film includes a feeding frame 1 and a fixed base 2, the feeding frame 1 is fixedly installed on the inner side of one end of the fixed base 2, a lifting frame 5 is arranged in the middle of the upper end of the fixed base 2, and a punching piece 4 is movably installed in the middle position of the inner side of the lifting frame 5, a lower unwinding rod 8 and an upper unwinding rod 10 are arranged inside the fixed base 2 below the punching piece 4, the lower unwinding rod 8 is arranged at the lower position of the upper unwinding rod 10, and the lower unwinding rod 8 and the upper unwinding rod 10 are staggered, the upper end outer surface of the fixed base 2 is located on both sides of the lifting frame 5 and feeders 6 are arranged, the upper end outer surface of the fixed base 2 is located below the punching piece 4 and two groups of side rotating bottom plates 3 are movably installed, and the two groups of side rotating bottom plates 3 are symmetrically arranged.

[0025] To solve the problem of synchronous packaging of bowl cover film, such as Figure 2 As shown, a roller 11, a sealer 12 and a cutting frame 13 are sequentially arranged on one side of the upper unwinding rod 10 inside the fixed base 2, and the sealer 12 is arranged between the roller 11 and the cutting frame 13. A plurality of feed rollers 7 are arranged on one side of the lower unwinding rod 8 inside the fixed base 2, as shown in FIG. Figure 7 As shown, a rolling rod 33 is elastically installed at the lower part of the roller 11, and the roller 11 and the rolling rod 33 are elastically connected by an elastic top rod 32. When the several layers of film bodies 9 fall after punching, the lower and upper layers of packaging films are released respectively by the lower unwinding rod 8 and the upper unwinding rod 10, and the film body 9 falls onto the packaging film released by the lower unwinding rod 8. The packaging film drives the film body 9 forward following the rotation of the feed roller 7. When the film body 9 passes through the lower surface of the upper unwinding rod 10, the upper packaging film can be released by the upper unwinding rod 10, so that the film body 9 of the bowl cover film is placed between the two packaging films. During the movement of the film body 9, the roller 11, the sealer 12 and the cutting frame 13 are used to perform rolling shaping, sealing operations and slitting processing on it respectively.

[0026] To solve the packaging and discharging problem of bowl cover film, Figure 3 As shown, the punching piece 4 includes a top plate 14 and a punching sleeve 16. The top plate 14 is movably installed inside the punching sleeve 16. The top plate 14 and the punching sleeve 16 are elastically connected by a spring 15. The lower end of the punching sleeve 16 is an annular incision structure. When the punching sleeve 16 moves downward, the annular incision at the lower end of the punching sleeve 16 can be used to complete the punching operation of several layers of bowl cover film, so that the circular bowl cover film is placed inside the punching sleeve 16, and then the spring 15 is used to push the top plate 14 downward, so that the top plate 14 pushes out several layers of film body 9 retained in the punching sleeve 16, so that the film body 9 is discharged downward.

[0027] The upper end of the punching sleeve 16 is driven by a hydraulic rod 18. Lifting guide rods 17 are provided on both sides of the punching sleeve 16. The lifting guide rods 17 are movably sleeved on the inner side of the lifting frame 5. The hydraulic rod 18 can drive the punching sleeve 16 to move up and down, and the setting of the lifting guide rods 17 can improve the accuracy of the punching sleeve 16 when it moves up and down.

[0028] To solve the problem of synchronous packaging of bowl cover film, such as Figure 4 As shown, the punching piece 4 includes a punching sleeve 16 and a threaded sleeve 22. The threaded sleeve 22 is movably sleeved on the inner side of the upper end of the punching sleeve 16. The inner side of the punching sleeve 16 is provided with a threaded groove 20. The punching sleeve 16 and the threaded sleeve 22 are connected by threads. The middle position of the upper end of the threaded sleeve 22 is driven by a hydraulic rod 18. The user can rotate the threaded sleeve 22 according to the number and thickness of the bowl cover film to make the threaded sleeve 22 move up and down on the inner side of the punching sleeve 16, adjust the volume between the threaded sleeve 22 and the punching sleeve 16, so that the threaded sleeve 22 can accommodate bowl cover films of any number and thickness inside the punching sleeve 16, thereby improving the flexibility of the punching piece 4 when used.

[0029] like Figure 4 As shown, the punching sleeve 16 and the threaded sleeve 22 are internally movably sleeved with a top plate 14, and two sets of lifting push rods 19 are installed on the upper end of the top plate 14. The lifting push rods 19 are movably sleeved on the inner side of the upper end of the threaded sleeve 22, and the outer side of the hydraulic rod 18 is movably sleeved with a lifting plate 24. In order to meet the punching sleeve 16 and the threaded sleeve 22 under different depth conditions, the lifting push rods 19 are provided to make the top plate 14 have a lifting adjustment structure, so that the top plate 14 can be adjusted according to the depth of the punching sleeve 16 and the threaded sleeve 22. When operating, the lifting push rods 19 are lifted and lowered. The push rod 19 is set at a corresponding height. The threaded structure can be used to adjust the use length of the lifting push rod 19 by rotating the limit cap 23, while preventing the lifting push rod 19 from falling out of the threaded sleeve 22. The limit cap 23 limits one end of the lifting push rod 19. When the threaded sleeve 22 moves up, the threaded sleeve 22 drives the lifting push rod 19 to move, and the top end of the lifting push rod 19 abuts against the lower surface of the lifting plate 24, so that the lifting push rod 19 drives the top plate 14 to move downward, thereby ejecting the punching sleeve 16 and the membrane body 9 in the threaded sleeve 22.

[0030] like Figure 4As shown, lifting sleeves 21 are fixedly installed on both sides of the lifting plate 24, and the lifting sleeves 21 are movably sleeved on the outer surface of the lifting frame 5. The outer surface of the lifting push rod 19 is movably sleeved on the limiting cap 23. By rotating the limiting cap 23, the position of the limiting cap 23 on the lifting push rod 19 can be adjusted. The limiting cap 23 is used to limit the use length of the lifting push rod 19, and the lifting sleeve 21 is locked on the outer surface of the lifting frame 5 by a bolt body. The use height of the lifting plate 24 can be adjusted by the lifting sleeve 21, so that the lifting plate 24 can be flexibly used in conjunction with the limiting cap 23, thereby improving its flexibility.

[0031] like Figure 5 As shown, the fixed base 2 and the side rotating bottom plate 3 are movably connected via a fixed frame 27, a transverse push rod 26 used in conjunction with the fixed frame 27 is provided at the bottom of the fixed frame 27, a clamping wheel 25 is movably mounted on the outer surface of one end of the transverse push rod 26, and the clamping wheel 25 is driven to move by the transverse push rod 26, so that the clamping wheel 25 is in sliding contact with the lower surface of the side rotating bottom plate 3, so that the side rotating bottom plate 3 completes the closing or opening operation.

[0032] like Figure 6 As shown, the lifting frame 5 includes an upper roller 28 and a lower roller 31. The upper roller 28 is movably mounted on the upper part of the lower roller 31, and a lifting rod 29 is arranged between the upper roller 28 and the lower roller 31. The lower part of the lower roller 31 is driven by a motor 30. The lifting rod 29 can be used to adjust the height between the upper roller 28 and the lower roller 31, so that several layers of bowl cover film raw materials can pass between the upper roller 28 and the lower roller 31.

[0033] A packaging method for a bowl cover film packaging device, comprising the following steps: Step 1: stack several layers of bowl cover film raw materials, move several layers of bowl cover film raw materials to the bottom of the punching piece 4 through the feeder 6, and use the hydraulic rod 18 to drive the punching sleeve 16 to move downward, so that the punching sleeve 16 punches several layers of bowl cover film raw materials, so that the circular bowl cover film is placed inside the punching sleeve 16. When the punching sleeve 16 moves upward, the spring 15 is used to push the top plate 14 downward, so that the top plate 14 pushes out several layers of film bodies 9 retained in the punching sleeve 16, so that the film bodies 9 are discharged downward; Step 2, open the side rotating bottom plate 3, several layers of film 9 fall into the interior of the fixed base 2, and the upper and lower layers of packaging film are released respectively by the lower unwinding rod 8 and the upper unwinding rod 10, and the film 9 falls onto the packaging film released by the lower unwinding rod 8, and the packaging film drives the film 9 forward following the rotation of the feed roller 7. When the film 9 passes through the lower surface of the upper unwinding rod 10, the upper packaging film is released by the upper unwinding rod 10, so that the film 9 of the bowl cover film is placed between the two packaging films, and during the movement of the film 9, the roller 11, the sealer 12 and the cutting frame 13 are used to roll and shape, seal and slit the packaging film in turn.

[0034] When in use, the bowl cover film is a thin film material of a specific shape. The packaging operation is usually carried out manually after the bowl cover film is shaped. Conventional packaging equipment cannot be connected to the bowl cover film shaping equipment, which reduces its work efficiency. At the same time, due to the soft texture of the bowl cover film, conventional packaging equipment cannot complete the automatic bagging operation of several groups of bowl cover films. To this end, by providing a side rotating bottom plate 3 and a punching piece 4, when the packaging device of the bowl cover film is used, the upper unwinding rod 10 and the lower unwinding rod 8 are used to make it have a bowl cover film mobile packaging structure, which can automatically complete its packaging operation after the bowl cover film is finalized, thereby improving its work efficiency; During operation, firstly, several layers of bowl cover film raw materials are stacked, and several layers of bowl cover film are passed between the upper roller 28 and the lower roller 31, and several layers of bowl cover film raw materials are moved to the bottom of the punching piece 4 through the feeder 6, and the punching sleeve 16 is driven downward by the hydraulic rod 18 so that the punching sleeve 16 punches several layers of bowl cover film raw materials. The side rotating bottom plate 3 supports the lower part of the bowl cover film raw materials, so that the circular bowl cover film is placed inside the punching sleeve 16 after punching, and the bowl cover film pushes the top plate 14 upward so that the top plate 14 squeezes the spring 15, and the punching sleeve 16 completes the storage operation of the bowl cover film. After the bowl cover film is finalized, the horizontal push rod 26 is used to drive the card wheel 25 to move so that the card wheel 25 slides and contacts with the lower surface of the side rotating bottom plate 3, so that the side rotating bottom plate 3 completes the closing or opening operation, opens the rotating bottom plate, and then uses the spring 15 to push the top plate 14 downward so that the top plate The disk 14 pushes out several layers of film 9 retained in the punching sleeve 16, so that the film 9 is discharged downward. When the side rotating bottom plate 3 is opened, several layers of film 9 fall into the interior of the fixed base 2, and the upper and lower layers of packaging film are released respectively by the lower reel 8 and the upper reel 10. The film 9 falls onto the packaging film released by the lower reel 8, and the packaging film drives the film 9 forward following the rotation of the feed roller 7. When the film 9 passes through the lower surface of the upper reel 10, the upper reel 10 is used to release the upper packaging film, so that the film 9 of the bowl cover film is placed between the two packaging films. During the movement of the film 9, the roller 11, the sealer 12 and the cutting frame 13 are used to roll and shape the packaging film, seal it and cut it in turn, so that the packaging process of the bowl cover film can be completed synchronously during the shaping process of the bowl cover film, thereby improving its work efficiency.

[0035] Secondly, when the traditional equipment is performing the bowl cover film packaging operation, it cannot be adjusted arbitrarily according to the number of layers of the bowl cover film, so that the packaging equipment can only package a fixed number of bowl cover films, which reduces its flexibility in use; To this end, by providing the punching sleeve 16 and the threaded sleeve 22, when the packaging device of the bowl cover film is used, the punching space can be adjusted arbitrarily according to the number of layers and thickness of the bowl cover film, so as to facilitate the packaging of different quantities of bowl cover films and improve the flexibility of its use; When in use, the threaded sleeve 22 is rotated to make the threaded sleeve 22 move up and down inside the punching sleeve 16, so as to adjust the volume between the threaded sleeve 22 and the punching sleeve 16, so that the threaded sleeve 22 can accommodate bowl cover films of any number of layers and thickness inside the punching sleeve 16, thereby improving the flexibility of the punching piece 4 when in use. In order to meet the ejection operation of the punching sleeve 16 and the threaded sleeve 22 at different depths, the lifting push rod 19 is provided to make the top plate 14 have a lifting adjustment structure, so that the top plate 14 can be adjusted according to the depth of the punching sleeve 16 and the threaded sleeve 22. During operation, the lifting push rod 19 is set at a corresponding height. When the threaded sleeve 22 moves up, the top of the threaded sleeve 22 abuts against the lower surface of the lifting plate 24, so that the lifting push rod 19 drives the top plate 14 to move downward, thereby ejecting the membrane body 9 in the punching sleeve 16 and the threaded sleeve 22. The limiting cap 23 is used to limit the use length of the lifting push rod 19, and the lifting sleeve 21 is locked on the outer surface of the lifting frame 5 by a bolt body. The use height of the lifting plate 24 can be adjusted through the lifting sleeve 21, so that the lifting plate 24 can be flexibly used in conjunction with the limiting cap 23 to improve its flexibility.

[0036] At the same time, bowl cover films of different quantities and specifications have different thicknesses, and traditional packaging equipment cannot flexibly apply bowl cover film materials of different thicknesses during the packaging and conveying operation of bowl cover films, which reduces its flexibility during use; To this end, by setting the feeder 6, when the packaging device of the bowl cover film is used, it has a lifting auxiliary feeding structure, which can complete the conveying operation of bowl cover film raw materials of different thicknesses and layers, thereby improving its application range; During operation, the height between the upper roller 28 and the lower roller 31 can be adjusted by using the lifting rod 29, so that several layers of bowl cover film raw materials can pass between the upper roller 28 and the lower roller 31. The user places several layers of bowl cover film between the upper roller 28 and the lower roller 31, and then uses the lifting rod 29 to drive the upper roller 28 to move downward, so that the upper roller 28 is close to the upper surface of the bowl cover film, so that the bowl cover film raw material is clamped between the upper roller 28 and the lower roller 31, and the motor 30 is used to drive the lower roller 31 to rotate, thereby completing the conveying operation of bowl cover film raw materials of different thicknesses and layers.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A packaging device for bowl cover film, characterized in that: It comprises a material conveying frame (1) and a fixed base (2), wherein the material conveying frame (1) is fixedly mounted on the inner side of one end of the fixed base (2), a lifting frame (5) is arranged in the middle of the upper end of the fixed base (2), and a punching piece (4) is movably mounted in the middle of the inner side of the lifting frame (5), a lower unwinding rod (8) and an upper unwinding rod (10) are arranged inside the fixed base (2) below the punching piece (4), the lower unwinding rod (8) is arranged at the lower position of the upper unwinding rod (10), and the lower unwinding rod (8) and the upper unwinding rod (10) are staggered, a material conveyor (6) is arranged on both sides of the lifting frame (5) on the upper end outer surface of the fixed base (2), and two sets of side rotating bottom plates (3) are movably mounted on the upper end outer surface of the fixed base (2) below the punching piece (4), and the two sets of side rotating bottom plates (3) are symmetrically arranged; The punching member (4) comprises a punching sleeve (16) and a threaded sleeve (22), wherein the threaded sleeve (22) is movably sleeved on the inner side of the upper end of the punching sleeve (16), a thread groove (20) is provided on the inner side of the punching sleeve (16), the punching sleeve (16) and the threaded sleeve (22) are butt-jointed via threads, and the middle position of the upper end of the threaded sleeve (22) is driven by a hydraulic rod (18); The punching sleeve (16) and the threaded sleeve (22) are internally movably sleeved with a top plate (14), the upper end of the top plate (14) is provided with two sets of lifting push rods (19), the lifting push rods (19) are movably sleeved on the inner side of the upper end of the threaded sleeve (22), and the outer side of the hydraulic rod (18) is movably sleeved with a lifting plate (24); Lifting sleeves (21) are fixedly mounted on both sides of the lifting plate (24); the lifting sleeves (21) are movably sleeved on the outer surface of the lifting frame (5); and the outer surface of the lifting push rod (19) is movably sleeved on a limiting cap (23).

2. The packaging equipment for bowl cover film according to claim 1, characterized in that: A roller (11), a sealer (12) and a cutting frame (13) are sequentially arranged inside the fixed base (2) on one side of the upper unwinding rod (10); the sealer (12) is arranged between the roller (11) and the cutting frame (13); a plurality of groups of feed rollers (7) are arranged inside the fixed base (2) on one side of the lower unwinding rod (8); a rolling rod (33) is elastically mounted at the bottom of the roller (11); and the roller (11) and the rolling rod (33) are elastically connected via an elastic top rod (32).

3. The packaging equipment for bowl cover film according to claim 1, characterized in that: The punching piece (4) comprises a top plate (14) and a punching sleeve (16); the top plate (14) is movably mounted inside the punching sleeve (16); the top plate (14) and the punching sleeve (16) are elastically connected via a spring (15); and the lower end of the punching sleeve (16) is in an annular incision-shaped structure.

4. The packaging equipment for bowl cover film according to claim 3, characterized in that: The upper end of the punching sleeve (16) is driven by a hydraulic rod (18), and lifting guide rods (17) are provided on both sides of the punching sleeve (16), and the lifting guide rods (17) are movably sleeved on the inner side of the lifting frame (5).

5. The packaging equipment for bowl cover film according to claim 1, characterized in that: The fixed base (2) and the side rotating bottom plate (3) are movably connected via a fixed frame (27); a transverse push rod (26) used in conjunction with the fixed frame (27) is provided at the bottom of the fixed frame (27); a clamping wheel (25) is movably mounted on the outer surface of one end of the transverse push rod (26).

6. The packaging equipment for bowl cover film according to claim 1, characterized in that: The lifting frame (5) comprises an upper roller bar (28) and a lower roller bar (31), wherein the upper roller bar (28) is movably mounted on the upper portion of the lower roller bar (31), and a lifting rod (29) is arranged between the upper roller bar (28) and the lower roller bar (31), and the lower portion of the lower roller bar (31) is driven by a motor (30).

7. A packaging device for bowl cover film according to any one of claims 1 to 6, characterized in that The packaging method of the packaging equipment for the bowl cover film includes the following steps: Step 1, stacking a plurality of layers of bowl cover film raw materials, moving the plurality of layers of bowl cover film raw materials to the bottom of the punching member (4) through a feeder (6), and driving the punching sleeve (16) downward by a hydraulic rod (18), so that the punching sleeve (16) punches and cuts a plurality of layers of bowl cover film raw materials, so that a circular bowl cover film is placed inside the punching sleeve (16); when the punching sleeve (16) moves upward, the spring (15) pushes down the top plate (14), so that the top plate (14) pushes out the plurality of layers of film bodies (9) retained in the punching sleeve (16), so that the film bodies (9) are discharged downward; Step 2: Open the side rotating bottom plate (3), and several layers of film bodies (9) fall into the interior of the fixed base (2). The lower and upper layers of packaging film are released respectively by the lower reel rod (8) and the upper reel rod (10). The film body (9) falls onto the packaging film released by the lower reel rod (8). The packaging film follows the rotation of the feed roller (7) to drive the film body (9) forward. When the film body (9) passes through the lower surface of the upper reel rod (10), the upper reel rod (10) is used to release the upper packaging film, so that the film body (9) of the bowl cover film is placed between the two packaging films. During the movement of the film body (9), the roller (11), the sealer (12) and the cutting frame (13) are used to roll and shape the packaging film, seal it and cut it.

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