Batching mechanism for film blowing machine

Abstract

The utility model discloses a batching mechanism for a film blowing machine, and relates to the technical field of film blowing machines, the batching mechanism comprises a feeding cylinder and a plurality of transparent batching pipes with scales, a valve I is arranged on the feeding cylinder, and a valve II is arranged on each batching pipe; a compaction assembly and an anti-blocking assembly are arranged on each batching pipe, and the batching pipes are connected with a rotating assembly; raw materials in the batching pipe can be compacted through the compaction assembly, gaps among the raw materials are reduced, and then the raw materials can be accurately batching; after batching is finished, the batching pipe can be driven to rotate through the rotating assembly, the anti-blocking assembly moves on the mounting ring and the protruding block, then the anti-blocking assembly can ascend and descend in a reciprocating mode, the situation that the compacted raw materials are blocked during discharging is prevented, the batching pipe rotates on the feeding cylinder, the raw materials can be evenly distributed in the feeding cylinder, and the feeding efficiency is improved. Therefore, the subsequent uniform mixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, specifically to a feeding mechanism for a blown film machine. Background Technology

[0002] A blown film machine heats and melts plastic particles before blowing them into a thin film. A search revealed that patent announcement number CN221834960U discloses a blown film machine capable of automatically proportioning and mixing raw materials. This machine includes a mounting plate, a support frame fixed to one top of the mounting plate, a processing barrel fixed to the top of the support frame, a feeding pipe fixed to one top of the processing barrel, a feed hopper fixed to the top of the feeding pipe, and a feeding mechanism at the top of the feed hopper. This technical solution places different raw materials into different feeding hoppers, and adjusts the metering of the materials using a first rotary valve on each feeding pipe, thus achieving precise mixing. Furthermore, the bidirectional rotation of a first and second agitator during feeding ensures better mixing of the materials, resulting in superior performance during subsequent blown film production.

[0003] However, the applicant discovered that the raw materials for the film are generally in the form of plastic granules, and there are gaps between the raw materials during the batching process, which makes it impossible to compact the raw materials, resulting in low measurement accuracy during batching. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a feeding mechanism for a blown film machine, which solves the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a feeding mechanism for a blown film machine, comprising a feeding cylinder and multiple graduated and transparent feeding pipes, wherein a valve one is provided on the feeding cylinder and a valve two is provided on the feeding pipes;

[0006] Each dispensing pipe is equipped with a compaction component and an anti-clogging component, and each dispensing pipe is connected to a rotating component.

[0007] The top of the inner wall of the feed cylinder is provided with an installation ring, and the installation ring is provided with protrusions evenly distributed, and the anti-blocking component is in contact with the installation ring.

[0008] The feed cylinder is equipped with a stirring assembly, and the bottom of the feed cylinder is connected to the heating and extrusion mechanism on the blown film machine.

[0009] Preferably, the compaction component includes a mounting frame disposed on the dispensing pipe, an electric telescopic rod disposed on the mounting frame, a geared motor connected to the output end of the electric telescopic rod, and the geared motor connected to a perforated plate, the perforated plate being matched with the inner cavity of the dispensing pipe.

[0010] Preferably, the output shaft of the geared motor is provided with a scraper that contacts the bottom of the perforated plate.

[0011] Preferably, the anti-clogging component includes a cone-shaped rod with a tapered top, the cone extending into the dispensing pipe and located below the valve. The bottom end of the cone is movably connected to a universal ball that contacts the mounting ring. A baffle is provided on the cone, a guide rod is provided on the baffle, and a spring is provided on the guide rod. The top of the spring is connected to a sleeve that is slidably sleeved on the guide rod, and the sleeve is located on the dispensing pipe.

[0012] Preferably, the rotating assembly includes a connecting rod connecting adjacent feeding pipes, a rotating rod on the intermediate feeding pipe, the rotating rod being connected to the output shaft of the second reduction motor, and the second reduction motor being mounted on a mounting rod, the mounting rod being provided with a support rod connected to the output shaft of the second reduction motor via a bearing.

[0013] Preferably, the stirring assembly includes a mounting plate located inside the feed cylinder. The mounting plate is provided with a third geared motor and a secondary stirring component. The output shaft of the third geared motor is provided with a driving gear and a main stirring component, and the secondary stirring component is provided with a driven gear meshing with the driving gear. The top outer ring of the mounting plate is uniformly provided with round rods connected to the feed cylinder. Beneficial effects

[0014] This invention provides a feeding mechanism for a blown film machine. Compared with the prior art, it has the following advantages:

[0015] 1. The feeding mechanism for the blown film machine can compact the raw materials in the feeding tube through the compaction component, reducing the gaps between the raw materials and thus enabling accurate feeding. After feeding, the feeding tube can be rotated by the rotating component, causing the anti-blocking component to move on the mounting ring and the protrusion. This allows the anti-blocking component to move up and down repeatedly to prevent blockage when the compacted raw materials are fed out. Furthermore, the rotation of the feeding tube on the feed cylinder can ensure that the raw materials are evenly distributed in the feed cylinder, thereby improving the efficiency of subsequent uniform mixing.

[0016] 2. The feeding mechanism for the blown film machine uses a geared motor to drive the scraper to rotate at the bottom of the perforated plate, which can prevent the raw material from sticking after leaving the plate and further improve the accuracy of raw material feeding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating component and the compaction component of this utility model;

[0019] Figure 3This is a schematic diagram of the compaction component of this utility model;

[0020] Figure 4 This is a schematic diagram of the stirring assembly of this utility model.

[0021] In the diagram: 1. Feed cylinder; 2. Valve 1; 3. Feeding pipe; 4. Valve 2; 5. Mounting bracket; 6. Electric telescopic rod; 7. Gear motor 1; 8. Perforated plate; 9. Scraper; 10. Conical rod; 11. Universal ball; 12. Mounting ring; 13. Protrusion; 14. Baffle; 15. Guide rod; 16. Spring; 17. Sleeve rod; 18. Connecting rod; 19. Rotating rod; 20. Gear motor 2; 21. Mounting rod; 22. Support rod; 23. Mounting plate; 24. Gear motor 3; 25. Main mixing component; 26. Secondary mixing component; 27. Round rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figures 1-4 This utility model provides the following two technical solutions:

[0024] First embodiment: A feeding mechanism for a blown film machine includes a feeding cylinder 1 and multiple graduated and transparent feeding tubes 3. The graduations and transparent material facilitate observation of whether the amount of raw material in the feeding tubes 3 meets the requirements. A valve 2 is provided on the feeding cylinder 1. Opening valve 2 allows the uniformly mixed raw materials to be fed into the heating and extrusion mechanism for heating and extrusion. A valve 4 is provided on the feeding tubes 3. Opening valve 4 allows the raw materials after feeding to be poured into the feeding cylinder 1. Each feeding tube 3 is equipped with a compaction component and an anti-blocking component. Each feeding tube 3 is connected to a rotating component. An installation ring 12 is provided on the top of the inner wall of the feeding cylinder 1. Protrusions 13 are evenly distributed on the installation ring 12, and the anti-blocking component is in contact with the installation ring 12. A stirring component is provided inside the feeding cylinder 1, and the bottom of the feeding cylinder 1 is connected to the heating and extrusion mechanism of the blown film machine.

[0025] The compaction assembly includes a mounting frame 5 mounted on the feeding pipe 3. The mounting frame 5 can move together with the feeding pipe 3. The mounting frame 5 is equipped with an electric telescopic rod 6 powered and controlled by existing technology. The output end of the electric telescopic rod 6 is connected to a geared motor 7 powered and controlled by existing technology. The geared motor 7 is connected to a perforated plate 8. The two are connected in a fixed manner. The perforated plate 8 matches the inner cavity of the feeding pipe 3. The raw material is poured into the feeding pipe 3, and then the electric telescopic rod 6 drives the geared motor 7 to move downward, so that the perforated plate 8 moves downward and enters the feeding pipe 3 to compact the raw material. Since the perforated plate 8 is provided with holes, the air is not affected during compaction, so as to facilitate better compaction, and the particulate raw material will not enter the holes.

[0026] To prevent material from adhering to the perforated plate 8 after it leaves the material, a scraper 9 is provided on the output shaft of the geared motor 7 to contact the bottom of the perforated plate 8, so that the scraper 9 can be driven to rotate when it leaves the plate, thus preventing material residue from remaining on the bottom of the perforated plate 8.

[0027] The anti-clogging component includes a cone rod 10 with a tapered top, which facilitates movement in the raw material. The cone rod 10 extends into the feed pipe 3 and is located below the valve 4. The bottom end of the cone rod 10 is movably connected to a universal ball 11 that contacts the mounting ring 12. A fan-shaped baffle 14 is provided on the cone rod 10. When the material poured out from the feed pipe 3 falls onto the horizontal part of the cone rod 10, it is easy to bounce out of the feed cylinder 1. The baffle 14 can block the raw material and solve this problem. The horizontal part of the cone rod 10 has a circular cross-section, which can reduce the residue when the raw material falls on it. A guide rod 15 is provided on the baffle 14, and a spring 16 is provided on the guide rod 15. The top of the spring 16 is connected to a sleeve rod 17 that is slidably sleeved on the guide rod 15, and the sleeve rod 17 is provided on the feed pipe 3.

[0028] The rotating assembly includes a connecting rod 18 connecting adjacent dispensing pipes 3, a rotating rod 19 on the intermediate dispensing pipe 3, the rotating rod 19 being connected to the output shaft of the second geared motor 20, and the second geared motor 20 being mounted on a mounting rod 21. In order to provide stable support for the rotation of the dispensing pipe 3, a support rod 22 connected to the output shaft of the second geared motor 20 via a bearing can be provided on the mounting rod 21. The mounting rod 21 is provided with screw holes for fixing the mounting rod 21 at the required location.

[0029] The second embodiment differs from the first embodiment in that the stirring assembly includes a mounting plate 23 located inside the feed cylinder 1. The mounting plate 23 is equipped with a reduction motor 24 and a secondary stirring component 26. The output shaft of the reduction motor 24 is equipped with a drive gear and a main stirring component 25, and the secondary stirring component 26 is equipped with a driven gear that meshes with the drive gear. This allows for bidirectional stirring of various falling raw materials, similar to the structure in CN221834960U. The top outer ring of the mounting plate 23 is uniformly provided with round rods 27 connected to the feed cylinder 1, which can fix the mounting plate 23. The top outer ring of the mounting plate 23 is provided with a downward slope, which reduces residue when the falling raw materials land on the top outer ring of the mounting plate 23 and also reduces residue when they land on the round rods 27.

[0030] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0031] In use, various raw materials are fed into the respective feeding pipes 3, and then the perforated plate 8 is inserted into the feeding pipe 3 for compaction. After compaction, it leaves the feeding pipe 3 until the raw materials in the feeding pipe 3 meet the metering requirements. Once the requirements are met, the valves 2 and 4 are opened, and the feeding pipes 3 are rotated at the same time. This causes the universal ball 11 on the cone rod 10 to roll on the mounting ring 12. When it rolls onto the protrusion 13, it compresses the spring 16 and drives the cone rod 10 to move upward. When it rolls onto the mounting ring 12, it causes the cone rod 10 to move downward. This allows it to move back and forth in the feeding pipe 3 to agitate the raw materials, thus preventing blockage when the compacted raw materials are discharged. Rotating the feeding pipe 3 also allows various raw materials to be poured evenly into the feed cylinder 1. After the materials are poured, the geared motor 3 and 24 drive the main stirring component 25 and the auxiliary stirring component 26 to rotate in opposite directions, which can quickly and evenly mix the various raw materials. After even mixing, the valves 2 and 4 are opened, allowing the various raw materials to be poured into the heating extrusion mechanism.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a blown film machine, characterized in that: It includes a feed cylinder (1) and multiple graduated and transparent dispensing pipes (3), with valve one (2) installed on the feed cylinder (1) and valve two (4) installed on the dispensing pipes (3); Each of the dispensing pipes (3) is equipped with a compaction component and an anti-blocking component, and each of the dispensing pipes (3) is connected to a rotating component; The top of the inner wall of the feed cylinder (1) is provided with an installation ring (12), and the installation ring (12) is provided with protrusions (13) evenly distributed on it, and the anti-blocking component is in contact with the installation ring (12); The feed cylinder (1) is equipped with a stirring assembly, and the bottom of the feed cylinder (1) is connected to the heating extrusion mechanism on the blown film machine.

2. The feeding mechanism for a blown film machine according to claim 1, characterized in that: The compaction assembly includes a mounting bracket (5) installed on the feeding pipe (3), an electric telescopic rod (6) is installed on the mounting bracket (5), the output end of the electric telescopic rod (6) is connected to a geared motor (7), and the geared motor (7) is connected to a perforated plate (8), the perforated plate (8) is matched with the inner cavity of the feeding pipe (3).

3. The feeding mechanism for a blown film machine according to claim 2, characterized in that: The output shaft of the geared motor (7) is provided with a scraper (9) that contacts the bottom of the perforated plate (8).

4. The feeding mechanism for a blown film machine according to claim 1, characterized in that: The anti-clogging component includes a cone rod (10) with a tapered top, which extends into the feed pipe (3) and is located below the valve (4). The bottom end of the cone rod (10) is movably connected to a universal ball (11) that contacts the mounting ring (12). A baffle (14) is provided on the cone rod (10), and a guide rod (15) is provided on the baffle (14). A spring (16) is provided on the guide rod (15). The top of the spring (16) is connected to a sleeve rod (17) that is slidably sleeved on the guide rod (15). The sleeve rod (17) is provided on the feed pipe (3).

5. The feeding mechanism for a blown film machine according to claim 1, characterized in that: The rotating assembly includes a connecting rod (18) connecting adjacent feeding pipes (3), a rotating rod (19) on the middle feeding pipe (3), the rotating rod (19) being connected to the output shaft of the second geared motor (20), and the second geared motor (20) being mounted on a mounting rod (21), and a support rod (22) connected to the output shaft of the second geared motor (20) via a bearing on the mounting rod (21).

6. The feeding mechanism for a blown film machine according to claim 1, characterized in that: The stirring assembly includes a mounting plate (23) located inside the feed cylinder (1). The mounting plate (23) is equipped with a geared motor (24) and a secondary stirring component (26). The output shaft of the geared motor (24) is equipped with a drive gear and a main stirring component (25). The secondary stirring component (26) is equipped with a driven gear that meshes with the drive gear. The top outer ring of the mounting plate (23) is uniformly equipped with round rods (27) that are connected to the feed cylinder (1).

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