Air pressure type bottom sealing equipment for plastic film packaging bag
By combining the lifting plate and leveling roller of the pneumatic bottom sealing equipment, the problem of uneven packaging bag surface is solved, product quality and pass rate are improved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202520004124.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-02
AI Technical Summary
When sealing plastic film packaging bags with existing sealing equipment, uneven packaging bag surfaces can affect product quality and pass rate.
The pneumatic bottom sealing equipment uses a cylinder to drive a lifting plate, which in turn drives a connecting plate and a rack. The meshing gears rotate the translation screw, which moves the leveling roller to smooth the surface of the packaging bag. The lifting plate and the welding mold work together to ensure that the packaging bag is flat before the bottom is sealed.
It improves the smoothness of the packaging bag surface, enhances product quality and pass rate, prevents welding mold damage, and extends equipment lifespan.
Smart Images
Figure CN223701902U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to plastic film packaging bag bottom sealing equipment technical field, concretely is a plastic film packaging bag pneumatic bottom sealing equipment. BACKGROUND
[0002] Plastic film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resin films, used for packaging and as a film layer. Plastic packaging and plastic packaging products, especially composite plastic soft packaging, have been widely used in food, medicine and chemical industry, among which food packaging accounts for the largest proportion, such as beverage packaging, frozen food packaging, steamed food packaging, fast food packaging, etc., which has brought great convenience to life. In the process of processing plastic film packaging bag, it needs to be sealed, and sealing equipment will be used.
[0003] The existing bottom sealing equipment directly seals the plastic film packaging bag if the surface of the plastic film packaging bag is not flat, which will affect the product quality and thus the product qualification rate. SUMMARY
[0004] The utility model discloses a plastic film packaging bag pneumatic bottom sealing equipment, can make the packaging bag before the surface is in the even state, is favorable to improve the quality of product, thereby improves the qualified rate of product.
[0005] To achieve the above object, the utility model adopts the technical scheme of providing a plastic film packaging bag pneumatic bottom sealing equipment, including the workbench, the top of the workbench is fixedly connected with the gantry, the inner wall top of the gantry is fixedly connected with the pneumatic cylinder, the bottom of the pneumatic cylinder is fixedly connected with the lifting plate, the both sides outer wall of the lifting plate is fixedly connected with the connecting plate, the bottom of the connecting plate is fixedly connected with the rack, and the number of rack is two, the outer wall of the workbench is fixedly connected with the fixed block, and the number of fixed block is multiple, the inner wall of same side two fixed blocks is movably connected with the translation screw rod, the both ends outer wall of the translation screw rod is fixedly connected with the gear, the inside of the workbench is provided with the roller frame, and the number of roller frame is two, the both ends of two roller frames are fixedly connected with the limiting block, the inner wall of two roller frames is installed with the even roller, the top end inner wall of the workbench is provided with the limiting slot, and the number of limiting slot is two.
[0006] Optionally, the outer wall of the rack is engaged with the outer wall of the gear, and the limiting block is located in the inside of the limiting slot.
[0007] Optionally, the inside of the lifting plate is provided with penetrating rods, and the number of the penetrating rods is multiple, the bottom of the multiple penetrating rods is fixedly connected with an upper welding die, the top of the penetrating rods is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a spring, and the bottom of the spring is fixedly connected with the top of the lifting plate.
[0008] Optionally, the inner walls of the gantry are provided with lifting grooves on both sides, the lifting plate is fixedly connected with lifting blocks on both sides, the lifting blocks are located in the lifting grooves, the inside of the two connecting plates is provided with hollow grooves, and the two sides of the gantry penetrate the inside of the two hollow grooves.
[0009] Optionally, the bottom of the inner wall of the top end of the workbench is provided with a rectangular groove, the inside of the rectangular groove is provided with a lower welding die, the two sides of the lower welding die are provided with linkage grooves, the outer wall of the workbench is fixedly connected with a motor, the output end of the motor is fixedly connected with a moving lead screw, the other end of the moving lead screw is movably connected with the inner wall of the rectangular groove, the outer wall of the moving lead screw is threadedly connected with moving plates at both ends, the two ends of the moving plates are fixedly connected with linkage columns, and the linkage columns are located in the linkage grooves.
[0010] Optionally, the inner wall of the rectangular groove is fixedly connected with slide rods, and the number of the slide rods is two.
[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:
[0012] 1. The cylinder descends, drives the lifting plate to descend synchronously, drives the connecting plates connected on both sides and the racks connected with the connecting plates to descend synchronously, the outer wall of the rack is engaged with the outer wall of the gear, drives the gear and the translation screw connected between the two gears to rotate, the limiting blocks connected with the outer wall of the two roller frames are threadedly connected with the translation screw, the two roller frames and the flattening rollers connected with the two roller frames move on the packaging bag, the two flattening rollers move from the middle of the packaging bag to both sides, the packaging bag is flattened, the surface of the packaging bag is in a flat state, and the quality of products is improved, so that the qualified rate of products is improved.
[0013] 2、Firstly, the packaging bag is placed on the upper surface of the lower welding die, then the motor operates to drive the moving lead screw to rotate, so that the two moving plates move relatively, in this process, the linkage columns connected to the two ends of the moving plate move along the linkage groove opened in the inside of the lower welding die, so that the lower welding die moves upward, and the upper surface of the packaging bag is in contact with the bottom of the two smoothing rollers, which facilitates the packaging bag to be put in, ensures that the packaging bag is close to the two smoothing rollers in the initial state, when the lifting plate moves downward, the bottom of the upper welding die will first contact the upper surface of the packaging bag, so that the packaging bag is pressed in the middle of the upper welding die and the lower welding die, then the lifting plate continues to move downward with the cylinder, and finally the upper welding die is tightly pressed on the upper surface of the packaging bag to perform the bottom sealing operation, so as to prevent the upper welding die and the lower welding die from being damaged due to hard contact. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0016] Figure 2 It is a schematic diagram of the structure of the translation screw and gear of the present application.
[0017] Figure 3 It is a schematic diagram of the structure of the connecting plate and lifting plate of the present application.
[0018] Figure 4 It is a schematic diagram of the structure of the lower welding die of the present application.
[0019] Figure 5 It is a schematic diagram of the internal structure of the lower welding die of the present application.
[0020] Figure 6 It is a schematic diagram of the internal structure of the present application.
[0021] In the figure: 1, workbench; 2, gantry; 3, cylinder; 4, lifting plate; 5, connecting plate; 6, rack; 7, fixed block; 8, translation screw; 9, gear; 10, roller frame; 11, limiting block; 12, smoothing roller; 13, limiting groove; 14, through rod; 15, upper welding die; 16, baffle; 17, spring; 18, lifting groove; 19, lifting block; 20, hollow groove; 21, rectangular groove; 22, lower welding die; 23, linkage groove; 24, motor; 25, moving lead screw; 26, moving plate; 27, linkage column; 28, sliding rod. DETAILED DESCRIPTION
[0022] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0023] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.
[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0025] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0026] Referring to Figures 1-6The utility model discloses a plastic film packaging bag air pressure type bottom sealing equipment, including the workbench 1, the top fixed connection of workbench 1 has the portal frame 2, the inner wall top of portal frame 2 is fixedly connected with the pneumatic cylinder 3, the bottom fixed connection of pneumatic cylinder 3 has the lifting plate 4, and the both sides outer wall of lifting plate 4 is fixedly connected with the connecting plate 5, and the bottom fixed connection of connecting plate 5 has the rack 6, and the number of rack 6 is two, and the outer wall fixed connection of workbench 1 has the fixed block 7, and the number of fixed block 7 is multiple, and the inner wall swing joint of same side two fixed blocks 7 has the translation screw 8, and the both ends outer wall of translation screw 8 is fixedly connected with the gear 9, and the outer wall of rack 6 is engaged with the outer wall of gear 9, and the inside of workbench 1 is provided with roller stand 10, and the number of roller stand 10 is two, and the both ends of two roller stands 10 are fixedly connected with the limiting block 11, and the inner wall of two roller stands 10 is installed with the flattening roller 12, and the pneumatic cylinder 3 goes down, drives lifting plate 4 synchronous down, when lifting plate 4 down, both sides respectively connected connecting plate 5 and the rack 6 connected with connecting plate 5 synchronous down, because the outer wall of rack 6 is engaged with the outer wall of gear 9, thereby make gear 9 and the rotation of translation screw 8 connected between two gear 9, and the limiting block 11 of two roller stand outer wall connection is with the thread connection of translation screw 8, makes two roller stands 10 and the flattening roller 12 connected with it on the packaging bag movement, makes two flattening rollers 12 from the middle of packaging bag to both sides move, and the packaging bag is flattened, and the surface of packaging bag is in the flat state, is favorable to improve the quality of product, thereby improves the qualified rate of product, and the top inner wall of workbench 1 is provided with limiting slot 13, and the number of limiting slot 13 is two, and limiting block 11 is located in the inside of limiting slot 13.
[0027] In another embodiment of the utility model, please refer to Figure 3 The inside of lifting plate 4 is provided with through rod 14, and the number of through rod 14 is multiple, and the bottom fixed connection of multiple through rod 14 has upper welding mould 15, and the top fixed connection of through rod 14 has baffle 16, and the bottom fixed connection of baffle 16 has spring 17, when lifting plate 4 down, the bottom of upper welding mould 15 will first contact the upper surface of packaging bag, and the packaging bag is pressed in the middle of upper welding mould 15 and lower welding mould 22, then lifting plate 4 continues to go down with pneumatic cylinder 3, finally makes upper welding mould 15 tightly press in the upper surface of packaging bag, carries out bottom sealing operation, prevents upper welding mould 15 and lower welding mould 22 hard contact and causes upper welding mould 15 and lower welding mould 22 damage, and the bottom of spring 17 is fixedly connected with the top of lifting plate 4.
[0028] In another embodiment of the utility model, please refer to Figure 2 And Figure 3The inner wall of the portal frame 2 is provided with lifting grooves 18 on both sides, the lifting plate 4 is fixedly connected with lifting blocks 19 on both sides, the lifting blocks 19 are located in the lifting grooves 18, the hollow grooves 20 are formed in the interiors of the two connecting plates 5, the two sides of the portal frame 2 respectively penetrate the interiors of the two hollow grooves 20, and the stability of the connecting plate 5 and the lifting plate 4 during movement is ensured.
[0029] In another embodiment of the utility model, please refer to Figures 2 to 5 The top end inner wall bottom of the workbench 1 is provided with a rectangular groove 21, the rectangular groove 21 is internally provided with a lower welding die 22, the lower welding die 22 is provided with linkage grooves 23 on both sides, the outer wall of the workbench 1 is fixedly connected with a motor 24, the output end of the motor 24 is fixedly connected with a moving lead screw 25, the other end of the moving lead screw 25 is movably connected with the inner wall of the rectangular groove 21, the outer wall of the moving lead screw 25 is threadedly connected with moving plates 26 at both ends, the moving plates 26 are fixedly connected with linkage columns 27 at both ends, the linkage columns 27 are located in the linkage grooves 23, first, the packaging bag is placed on the upper surface of the lower welding die 22, then the motor 24 is operated, the moving lead screw 25 is driven to rotate, the two moving plates 26 are relatively moved, in the process, the linkage columns 27 connected to the two ends of the moving plate 26 move along the linkage grooves 23 formed in the interior of the lower welding die 22, the lower welding die 22 is moved upwards, and the upper surface of the packaging bag is in contact with the bottom of the two flat rollers 12, the inner wall of the rectangular groove 21 is fixedly connected with slide rods 28, and the number of the slide rods 28 is two, the two slide rods 28 penetrate the two moving plates 26, and the movement of the two moving plates 26 is limited.
[0030] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A pneumatic sealing device for plastic film packaging bags, comprising a workbench (1), characterized in that: A gantry frame (2) is fixedly connected to the top of the workbench (1). A cylinder (3) is fixedly connected to the top of the inner wall of the gantry frame (2). A lifting plate (4) is fixedly connected to the bottom of the cylinder (3). Connecting plates (5) are fixedly connected to both outer walls of the lifting plate (4). A rack (6) is fixedly connected to the bottom of the connecting plate (5), and there are two racks (6). A fixing block (7) is fixedly connected to the outer wall of the workbench (1), and there are multiple fixing blocks (7). Two of the fixing blocks (7) are fixedly connected to the outer wall of the workbench (1). The inner wall of the fixed block (7) is movably connected to a translation screw (8), and gears (9) are fixedly connected to the outer walls of both ends of the translation screw (8). The worktable (1) is provided with a roller frame (10), and there are two roller frames (10). Limiting blocks (11) are fixedly connected to both ends of the two roller frames (10). A leveling roller (12) is installed on the inner wall of the two roller frames (10). A limiting groove (13) is opened on the inner wall of the top of the worktable (1), and there are two limiting grooves (13).
2. The pneumatic bottom sealing device for plastic film packaging bags as described in claim 1, characterized in that: The outer wall of the rack (6) meshes with the outer wall of the gear (9), and the limiting block (11) is located inside the limiting groove (13).
3. The pneumatic bottom sealing device for plastic film packaging bags as described in claim 1, characterized in that: The lifting plate (4) is provided with a through rod (14) inside, and there are multiple through rods (14). The bottom of the multiple through rods (14) is fixedly connected to an upper welding mold (15), and the top of the through rod (14) is fixedly connected to a baffle (16). The bottom of the baffle (16) is fixedly connected to a spring (17), and the bottom of the spring (17) is fixedly connected to the top of the lifting plate (4).
4. The pneumatic bottom sealing device for plastic film packaging bags as described in claim 1, characterized in that: The inner walls of the gantry frame (2) are provided with lifting grooves (18) on both sides. The lifting plates (4) are fixedly connected with lifting blocks (19) on both sides. The lifting blocks (19) are located inside the lifting grooves (18). The two connecting plates (5) are provided with hollow grooves (20). The two sides of the gantry frame (2) pass through the interior of the two hollow grooves (20).
5. The pneumatic bottom sealing device for plastic film packaging bags as described in claim 1, characterized in that: A rectangular groove (21) is provided at the bottom of the inner wall of the top of the workbench (1). A lower welding mold (22) is provided inside the rectangular groove (21). Linkage grooves (23) are provided on both sides of the lower welding mold (22). A motor (24) is fixedly connected to the outer wall of the workbench (1). A moving screw (25) is fixedly connected to the output end of the motor (24). The other end of the moving screw (25) is movably connected to the inner wall of the rectangular groove (21). A moving plate (26) is threaded to both ends of the outer wall of the moving screw (25). A linkage column (27) is fixedly connected to both ends of the moving plate (26). The linkage column (27) is located inside the linkage groove (23).
6. The pneumatic bottom sealing device for plastic film packaging bags as described in claim 5, characterized in that: The inner wall of the rectangular groove (21) is fixedly connected with a slide rod (28), and there are two slide rods (28), both of which pass through the two movable plates (26).