A foam stabilizing device for a biodegradable plastic film blowing machine

Abstract

The present invention relates to the technical field of plastic film production, and discloses a bubble stabilizing device for a degradable plastic film blowing machine, comprising a stabilizing plate, the stabilizing plate being arranged in an annular shape, a plurality of movable through holes arranged symmetrically in an annular shape being opened inside the stabilizing plate, a pushing mechanism being arranged inside the plurality of movable through holes, bearings being fixedly sleeved at both ends of the inner surfaces of the plurality of stabilizing through holes, a screw being sleeved on two adjacent bearings for common rotation, a plurality of pushing mechanisms being connected with hollow columns, a plurality of symmetrically arranged nozzles being connected on the front sides of the plurality of hollow columns, an air inlet pipe being connected on the right side of the hollow columns, a pipe wall of the air inlet pipe being located below the stabilizing plate and extending to the outside, a support plate being arranged in contact with the rear side of the stabilizing plate, and the support plate being arranged in an annular shape. The bubble stabilizing device for a degradable plastic film blowing machine can stabilize the film bubble by blowing air without direct contact with the film bubble, thereby ensuring the stability of the film bubble during production.

Description

Technical Field

[0001] The invention relates to the technical field of plastic film production, in particular to a foam stabilizing device for a degradable plastic film blowing machine. Background Art

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. Blow molding machines prepare products through blow molding. Blow molding machines are often used in the production process of existing biodegradable plastic films.

[0003] Among them, patent number CN202011151U discloses a bubble stabilizing device for an adjustable diameter blow molding machine. The device includes an annular fixed frame and multiple horizontally mounted stabilizing rollers. A number of vertical rotating shafts are evenly mounted along the circumference of the annular fixed frame. Each vertical rotating shaft is also fixedly connected to a corresponding pendulum block. The pendulum blocks of two adjacent vertical rotating shafts are connected by a transmission rod to form a parallelogram mechanism. However, this device has certain defects when used:

[0004] During the bubble stabilization process, the device keeps the bubble stable by contacting the stabilizing roller. However, the bubble may stick to the roller wall when in contact with the stabilizing roller, causing the bubble to deform and affecting the production quality of the plastic film. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a bubble stabilizing device for a degradable plastic film blowing machine, which has the advantage of stabilizing the bubble by blowing air without direct contact with the bubble, thereby ensuring the stability of the bubble during the production process. It solves the problem that the bubble may stick to the roller wall when in contact with the stabilizing roller during the stabilization process, thereby causing the bubble to deform and affecting the production quality of the plastic film.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bubble stabilizing device for a biodegradable plastic film blowing machine, comprising a stabilizing plate, the stabilizing plate being arranged in an annular shape, a plurality of movable through holes symmetrically arranged in an annular shape are opened inside the stabilizing plate, a plurality of movable through holes are provided inside each of the movable through holes, bearings are fixedly sleeved at both ends of the inner surfaces of the plurality of stabilizing through holes, two adjacent bearings are jointly rotated and sleeved with a screw, a plurality of the pushing mechanisms are connected with a hollow column, a plurality of symmetrically arranged nozzles are connected on the front side of the plurality of hollow columns, an air inlet pipe is connected on the right side of the hollow column, the pipe wall of the air inlet pipe is located below the stabilizing plate and extends to the outside, and the stabilizing plate The rear side contact is provided with a support plate, which is annular in shape, and the front side of the stabilizing plate is threadedly sleeved with a plurality of connecting bolts symmetrically arranged in an annular shape, and the connecting bolts are threadedly connected to the support plate, and the outer wall of the support plate is provided with a plurality of symmetrically arranged movable grooves, and the plurality of movable grooves are provided with movable plates, and the movable plate is a U-shaped plate, and the movable plate and the movable groove are connected by a limiting plug-in mechanism, and the movable plate is wrapped around the outer side of the movable groove, and the ends of the rod walls of the plurality of screw rods are fixedly sleeved with spiral bevel gears, and the plurality of movable plates are fixedly connected with a spiral bevel gear ring on one side close to the hollow column, and the plurality of spiral bevel gears are meshed with the spiral bevel gear ring.

[0009] Preferably, the pushing mechanism includes a slide plate, which is threadedly connected to the rod wall of the screw rod, and both ends of the side wall of the slide plate are fixedly connected to connecting rods. The other ends of the two connecting rods pass through the stabilizing plate and extend to the outside, and are jointly fixedly connected to a connecting plate, and the other side of the connecting plate is rotatably connected to the hollow column.

[0010] Preferably, the limiting plug-in mechanism includes an insert rod, which is slidably connected to the movable plate, and the inner surface of the movable groove is provided with a plurality of symmetrically arranged plug holes, and the end of the insert rod is contacted with the hole wall of the plug hole, and the rod wall of the insert rod is connected with a spring, and the two ends of the spring are respectively fixedly connected to the movable groove and the rod wall of the insert rod.

[0011] Preferably, the other side of each of the hollow columns is fixedly connected to a connecting block, and the other side of the connecting block is rotatably connected to a push plate. The interior of the push plate is provided with a plurality of threaded holes arranged in a transverse symmetrical manner, and the hole walls of the threaded holes are threadedly fitted with a limiting bolt, and the other end of the limiting bolt is threadedly sleeved with the connecting plate.

[0012] Preferably, the connecting plate and the hollow column, as well as the connecting block and the pushing plate, are rotatably connected via an axle pin.

[0013] Preferably, the other end of the rod wall of the insertion rod is fixedly connected with a pull ring.

[0014] Preferably, the plurality of air intake pipes are all high-pressure hoses.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a foam stabilizing device for a degradable plastic film blowing machine, which has the following beneficial effects:

[0017] 1. The bubble stabilizing device of the biodegradable plastic film blowing machine can avoid direct contact with the film bubble through the hollow column, air inlet pipe, nozzle and stabilizing plate. The film bubble is blown by the gas in a circular shape to ensure the stability of the film bubble during the production process.

[0018] 2. The bubble stabilizing device of the biodegradable plastic film blowing machine can adjust the positions and angles of multiple hollow columns and nozzles according to the diameter of the bubble through the stabilizing plate, support plate, movable plate, movable groove, spiral bevel gear, spiral bevel gear ring, limiting plug-in mechanism and pushing mechanism, as well as connecting block, push plate and limiting bolt, thereby improving the versatility of the bubble device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a foam stabilizing device for a degradable plastic film blowing machine proposed by the present invention;

[0020] Figure 2 for Figure 1 A magnified view of the structure of part A in the middle;

[0021] Figure 3 for Figure 1 An enlarged structural diagram of a local portion B;

[0022] Figure 4 for Figure 2 An enlarged view of the structure of the local C part.

[0023] In the figure: 1 stabilizing plate, 2 screw rod, 3 hollow column, 4 nozzle, 5 air inlet pipe, 6 support plate, 7 movable groove, 8 movable plate, 9 spiral bevel gear, 10 spiral bevel gear ring, 11 slide plate, 12 connecting rod, 13 connecting plate, 14 plug rod, 15 spring, 16 connecting block, 17 push plate, 18 limit bolt, 19 pull ring. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4A foam stabilizing device for a biodegradable plastic film blowing machine includes a stabilizing plate 1. The stabilizing plate 1 is annular in shape. A plurality of movable through holes symmetrically arranged in an annular shape are opened inside the stabilizing plate 1. A pushing mechanism is provided inside the plurality of movable through holes. Both ends of the inner surfaces of the plurality of stabilizing through holes are fixedly sleeved with bearings. Two adjacent bearings are sleeved with screw rods 2 for rotating together. A plurality of pushing mechanisms are connected with hollow columns 3. The front sides of the plurality of hollow columns 3 are connected with a plurality of symmetrically arranged nozzles 4. The right side of the hollow column 3 is connected with an air intake pipe 5. The pipe wall of the air intake pipe 5 is located below the stabilizing plate 1 and extends to the outside. The rear side of the stabilizing plate 1 is in contact with a support plate 6. The support plate 6 is annular in shape. The front side of the stabilizing plate 1 is threaded with a plurality of nozzles symmetrically arranged in annular shape. The connecting bolts are arranged symmetrically in an annular manner and are threadedly connected to the support plate 6, so that the stabilizing plate 1 and the support plate 6 can be stably connected. Each movable groove 7 is provided with a movable plate 8, and the movable plate 8 is a U-shaped plate. The movable plate 8 is connected to the movable groove 7 by a limiting plug-in mechanism. The movable plate 8 is wrapped around the outside of the movable groove, and the rod wall ends of multiple screw rods 2 are fixedly sleeved with spiral bevel gears 9. Multiple movable plates 8 are fixedly connected to the side close to the hollow column 3 with a spiral bevel gear ring 10, so that the spiral bevel gear ring 10 can rotate stably under the drive of the movable plate 8. 9 and the spiral bevel gear ring 10 are coordinated in transmission, so that multiple screw rods 2 can rotate at the same time to complete the distance adjustment of the hollow column 3 and the nozzle 4.

[0026] The propulsion mechanism includes a slide 11, which is threadedly connected to the rod wall of the screw 2. Connecting rods 12 are fixedly connected to both ends of the side walls of the slide 11. The other ends of the two connecting rods 12 pass through the stabilizing plate 1 and extend to the outside. They are fixedly connected to a connecting plate 13. The other side of the connecting plate 13 is rotatably connected to the hollow column 3. By conveniently adjusting the position of multiple hollow columns 3 and the nozzle 4 according to the diameter of the film bubble, it is suitable for the production of films with various diameters.

[0027] The limiting plug-in mechanism includes an insert rod 14, which is slidably connected to the movable plate 8. The inner surface of the movable groove 7 is provided with a plurality of symmetrically arranged plug holes. The end of the insert rod 14 is contacted with the hole wall of the plug hole. The rod wall of the insert rod 14 is connected with a spring 15. The two ends of the spring 15 are respectively fixedly connected to the rod wall of the movable groove 7 and the insert rod 14. By plugging the insert rod 14 and the plug hole, the position of the movable plate 8 and the spiral bevel gear ring 10 can be adjusted.

[0028] The other side of the multiple hollow columns 3 is fixedly connected to a connecting block 16, and the other side of the connecting block 16 is rotatably connected to a push plate 17. The interior of the push plate 17 is provided with multiple threaded holes arranged in a transverse symmetrical manner. The hole walls of the threaded holes are threadedly fitted with a limiting bolt 18, and the other end of the limiting bolt 18 is threadedly sleeved with the connecting plate 13. Through the fitting connection between the limiting bolt 18 and the threaded hole, the gas injection angle of the hollow column 3 and the multiple nozzles 4 can be conveniently adjusted.

[0029] The connecting plate 13 and the hollow column 3 as well as the connecting block 16 and the pushing plate 17 are all connected by a shaft pin. The shaft pin rotation allows the connecting plate 13 and the hollow column 3 as well as the connecting block 16 and the pushing plate 17 to rotate smoothly relative to each other.

[0030] The other end of the rod wall of the insertion rod 14 is fixedly connected with a pull ring 19, which facilitates pulling the insertion rod 14, thereby rotating the movable plate 8 and the spiral bevel gear ring 10.

[0031] Multiple air inlet pipes 5 all use high-pressure hoses to improve the stability of the air inlet pipes 5 and ensure that the air inlet pipes 5 can always perform stable and continuous gas flow during the movement and adjustment of the hollow column 3, thereby ensuring effective stabilization of the membrane bubble.

[0032] In summary, the bubble stabilizing device of the biodegradable plastic film blowing machine, when in use, connects the support plate 6 with the production device, so that the bubble can be pulled out from the inside of the stabilizing plate 1 during production, and then connects the multiple air inlet pipes 5 with the gas input device, so that the gas can flow evenly to the inside of the multiple nozzles 4 through the hollow column 3, and finally flow out through the nozzle 4, and then adjusts the multiple limit bolts 18 in turn to make them cooperate with the threaded holes at the corresponding positions of the push plate 17, and adjusts the blowing angles of the hollow column 3 and the multiple nozzles 4 under the premise of relative rotation between the hollow column 3 and the connecting plate 13, and starts the production of the film when all the nozzles 4 are adjusted, and observes the diameter of the bubble when the bubble is moved out from the inside of the stabilizing plate 1. Then, the pull ring 19 is pulled to pull the insertion rod 14 out of the socket and compress the spring 15, and then the pull ring 19 is pushed horizontally to make the movable plate 8 move in the movable groove 7, and through the connection between multiple movable plates 8 and the spiral bevel gear ring 10, the spiral bevel gear ring 10 rotates on the surface of the support plate 6 and pushes multiple spiral bevel gears 9 to rotate, so that multiple screw rods 2 rotate at the same time. While the screw rod 2 rotates, the slide plate 11 of its rod wall is limited by the connection of the connecting rod 12 and begins to push multiple connecting plates 13 and hollow columns 3, so that multiple hollow columns 3 and the nozzle 4 approach or move away from the bubble at the same time, so that the bubble can be stabilized by annular stable blowing during the bubble production process, thereby ensuring the production quality of the bubble.

[0033] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A foam stabilizing device for a biodegradable plastic film blowing machine, comprising a stabilizing plate (1), characterized in that: The stabilizing plate (1) is arranged in an annular shape, and a plurality of movable through holes arranged in an annular shape and symmetrical are opened inside the stabilizing plate (1), and a pushing mechanism is arranged inside the plurality of movable through holes, and bearings are fixedly sleeved at both ends of the inner surfaces of the plurality of movable through holes, and screw rods (2) are sleeved and rotated together between two adjacent bearings, and a hollow column (3) is connected with the plurality of pushing mechanisms, and a plurality of symmetrically arranged nozzles (4) are connected to the front side of the plurality of hollow columns (3), and an air inlet pipe (5) is connected to the right side of the hollow column (3), and the pipe wall of the air inlet pipe (5) is located below the stabilizing plate (1) and extends to the outside, and a support plate (6) is provided on the rear side of the stabilizing plate (1), and the support plate (6) is arranged in an annular shape. ) is threadedly sleeved with a plurality of connecting bolts symmetrically arranged in an annular shape, the connecting bolts are threadedly connected to the support plate (6), the outer wall of the support plate (6) is provided with a plurality of symmetrically arranged moving grooves (7), the plurality of moving grooves (7) are all provided with a moving plate (8), the moving plate (8) is a U-shaped plate, the moving plate (8) and the moving groove (7) are connected by a limiting plug-in mechanism, the moving plate (8) is wrapped around the outer side of the moving groove, the rod wall ends of the plurality of the screw rods (2) are fixedly sleeved with spiral bevel gears (9), the plurality of the moving plates (8) are fixedly connected to a spiral bevel gear ring (10) on one side close to the hollow column (3), and the plurality of the spiral bevel gears (9) are meshed with the spiral bevel gear ring (10); The pushing mechanism comprises a slide plate (11), the slide plate (11) is threadedly sleeved with the rod wall of the screw rod (2), both ends of the side wall of the slide plate (11) are fixedly connected with connecting rods (12), the other ends of the two connecting rods (12) pass through the stabilizing plate (1) and extend to the outside, and are fixedly connected to a connecting plate (13) together, and the other side of the connecting plate (13) is rotatably connected to the hollow column (3); The limit plug-in mechanism includes an insert rod (14), the insert rod (14) is slidably sleeved with the movable plate (8), the inner surface of the movable groove (7) is provided with a plurality of symmetrically arranged insert holes, the end of the insert rod (14) is arranged in contact with the hole wall of the insert hole, the rod wall of the insert rod (14) is sleeved with a spring (15), and the two ends of the spring (15) are fixedly connected to the rod wall of the movable groove (7) and the insert rod (14), respectively. The other side of each of the plurality of hollow columns (3) is fixedly connected to a connecting block (16), and the other side of the connecting block (16) is rotatably connected to a push plate (17). The push plate (17) has a plurality of threaded holes arranged in a transverse symmetrical manner inside, and the hole walls of the threaded holes are threadedly fitted with a limiting bolt (18), and the other end of the limiting bolt (18) is threadedly sleeved with the connecting plate (13).

2. The foam stabilizing device for a biodegradable plastic film blowing machine according to claim 1, characterized in that: The connecting plate (13) and the hollow column (3), as well as the connecting block (16) and the pushing plate (17), are all rotatably connected via axle pins.

3. The foam stabilizing device for a biodegradable plastic film blowing machine according to claim 1, characterized in that: The other end of the rod wall of the insertion rod (14) is fixedly connected with a pull ring (19).

4. The foam stabilizing device for a biodegradable plastic film blowing machine according to claim 1, characterized in that: The plurality of air intake pipes (5) all adopt high-pressure hoses.

Images