Film width adjusting and guiding device of film blowing machine

Abstract

The utility model relates to the technical field of film width adjusting and guiding devices of film blowing machines, and discloses a film width adjusting and guiding device of a film blowing machine, which comprises two groups of air rings and a support frame, the bottoms of the air rings are fixedly connected with four groups of fixing plates in an annular array, and the bottoms of the fixing plates are fixedly connected with two groups of limiting columns. A fixed sleeve box is inserted into the bottom of the limiting column, a limiting assembly is fixedly connected to the interior of the fixed sleeve box, two adjusting assemblies are rotatably connected to the interior of the supporting frame, the limiting assembly comprises two supporting springs fixedly connected to the interior of the fixed sleeve box, and one end of each supporting spring is fixedly connected with a sliding plate. According to the film width adjusting and guiding device of the film blowing machine, through the arrangement of the adjusting assembly, the effect of adjusting the height of an air ring is achieved, the corresponding relation between the air ring and a film bubble can be rapidly matched, the cooling rate can be changed, production parameter changes can be adjusted in time, and the equipment application range is widened for thin films needing to be produced and made of different thicknesses or materials.

Description

Technical Field

[0001] This utility model relates to the technical field of film width adjustment and guiding device for blown film machines, and in particular to a film width adjustment and guiding device for blown film machines. Background Technology

[0002] The film width adjustment and guiding device of a blown film machine is a crucial component of the blown film production line, primarily used to adjust and control the width of the blown film. This device ensures the produced film has a stable and uniform width by altering the film's shape and flow pattern. During the blown film process, the raw material is melted and extruded through an extruder, then blown to form a film. The film width adjustment and guiding device can adjust the film width according to production needs, ensuring the film reaches the predetermined specifications. This device is a key component in ensuring film quality and production efficiency, maintaining the film width within a precise range through airflow regulation to meet the production requirements of different products.

[0003] However, existing blown film machine film width adjustment guide devices are unable to adjust the air ring height in a timely manner when faced with films of different thicknesses or materials to be produced, resulting in uneven film thickness due to local overheating or insufficient cooling of the film bubble. Utility Model Content

[0004] The purpose of this utility model is to provide a film width adjustment guide device for blown film machines, which solves the problem mentioned in the background art that existing blown film machine film width adjustment guide devices are difficult to adjust the height of the air ring in time when facing films of different thicknesses or materials to be produced, resulting in uneven film thickness caused by local overheating or insufficient cooling of the film bubble.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a film width adjustment guide device for a blown film machine, comprising two sets of air rings and a support frame. The bottom of each air ring is fixedly connected to four sets of fixed plates in a circular array. The bottom of each fixed plate is fixedly connected to two sets of limiting posts. A fixed sleeve is inserted into the bottom of each limiting post. A limiting component is fixedly connected inside the fixed sleeve. Two adjusting components are rotatably connected inside the support frame. Each limiting component includes two sets of support springs fixedly connected inside the fixed sleeve. One end of each support spring is fixedly connected to a sliding plate. Two sets of locking blocks are fixedly connected inside the sliding plate. Each adjusting component includes a threaded screw rotatably connected inside the support frame. One end of the threaded screw is fixedly connected to a drive motor.

[0006] As a further embodiment of this utility model, the surfaces of both sets of threaded screws are threaded with sliding blocks, and a support rod is fixedly connected to one side of each sliding block. The support rod serves to support the fixed block.

[0007] As a further embodiment of this utility model, limit blocks are fixedly connected to both sides of the sliding block, and the limit blocks are slidably connected to the inner wall of the support frame. The setting of the limit blocks plays a role in limiting and stabilizing the sliding block.

[0008] As a further embodiment of this utility model, a fixing block is fixedly connected to one end of the support rod, a support ring is fixedly connected to the top of the fixing block, and the fixing sleeve is fixedly connected to the surface of the support ring. The support ring serves to support the air ring.

[0009] As a further embodiment of this utility model, the inner side of the air ring is provided with several sets of air blowing holes, and the outer surface of the air ring is connected to two sets of connecting pipes. One end of the connecting pipe is connected to a conveying pipe, and the other end of the conveying pipe is connected to a fan. The fan is used to deliver air.

[0010] As a further embodiment of this utility model, the top and bottom of the support frame are fixedly connected to protective shells, and the two sides of the protective shells are fixedly connected to connecting rods, which provide support.

[0011] As a further embodiment of this utility model, one end of the connecting rod is fixedly connected to a mounting plate. The surface of the mounting plate has four sets of positioning holes arranged in a rectangular array. The positioning holes facilitate installation.

[0012] As a further embodiment of this utility model, the top of the fixed sleeve is provided with an insertion hole adapted to the limiting post, and the bottom of the limiting post is provided with a slot adapted to the locking block. The slot facilitates the locking of the locking block.

[0013] This utility model provides a film width adjustment and guiding device for a blown film machine, which has the following beneficial effects:

[0014] 1. The film width adjustment guide device of this blown film machine, through the setting of the adjustment components, when the height of the air ring needs to be adjusted, the drive motor is started, which drives the threaded screw to rotate. The threaded screw then rotates inside the sliding block, causing the sliding block to rise and fall to the appropriate height. The sliding block drives the support rod, which in turn pushes the support ring and the air ring to rise and fall, thereby achieving the effect of adjusting the height of the air ring. For films of different thicknesses or materials to be produced, it can quickly match the correspondence between the air ring and the film bubble, change the cooling rate, and adjust the changes in production parameters in a timely manner, thereby improving the applicability of the equipment.

[0015] 2. The film width adjustment guide device of this blown film machine, through the setting of the limiting component, allows for easy disassembly of the air ring when it needs to be removed. Pressing the sliding plate causes it to compress the support spring, which in turn disengages the locking block from the slot on the limiting post. This pulls the air ring and removes the limiting post from the fixed sleeve. When installation is required, inserting the limiting post into the fixed sleeve and releasing the sliding plate causes the support spring to recover its deformation and generate elastic force, pushing the sliding plate and causing the locking block to re-engage on the limiting post. This achieves convenient disassembly and assembly of the air ring, facilitating maintenance, reducing the workload of personnel, avoiding excessive downtime, and preventing reduced production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0020] In the diagram: 1. Air ring; 2. Support frame; 3. Fixing plate; 4. Limiting post; 5. Fixing sleeve; 6. Limiting assembly; 601. Support spring; 602. Sliding plate; 603. Locking block; 7. Adjusting assembly; 701. Threaded screw; 702. Drive motor; 8. Sliding block; 9. Support rod; 10. Limiting block; 11. Fixing block; 12. Support ring; 13. Connecting pipe; 14. Protective shell; 15. Connecting rod; 16. Mounting plate; 17. Conveying pipe; 18. Fan. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a film width adjustment guide device for a blown film machine, comprising two sets of air rings 1 and a support frame 2. Four sets of fixing plates 3 are fixedly connected in a circular array at the bottom of the air rings 1. Two sets of limiting posts 4 are fixedly connected to the bottom of the fixing plates 3. A fixing sleeve 5 is inserted into the bottom of the limiting posts 4. A limiting component 6 is fixedly connected inside the fixing sleeve 5. The limiting component 6 facilitates the easy disassembly and assembly of the air rings 1, making maintenance easier, reducing the workload of disassembly and assembly, avoiding excessive downtime, and improving production efficiency. Two sets of adjustment components 7 are rotatably connected inside the support frame 2. The setting 7 achieves the effect of adjusting the height of the air ring 1. For films of different thicknesses or materials that need to be produced, it can quickly match the correspondence between the air ring 1 and the film bubble, change the cooling rate, adjust the changes in production parameters in a timely manner, and improve the applicability of the equipment. The limiting component 6 includes two sets of support springs 601 fixedly connected inside the fixed sleeve 5. One end of the support spring 601 is fixedly connected to a sliding plate 602. Two sets of locking blocks 603 are fixedly connected inside the sliding plate 602. The adjusting component 7 includes a threaded rod 701 rotatably connected inside the support frame 2. One end of the threaded rod 701 is fixedly connected to a drive motor 702.

[0023] Both sets of threaded screws 701 have sliding blocks 8 threadedly connected to their surfaces. A support rod 9 is fixedly connected to one side of the sliding block 8. The support rod 9 serves to support the fixed block 11.

[0024] Limiting blocks 10 are fixedly connected to both sides of the sliding block 8. The limiting blocks 10 are slidably connected to the inner wall of the support frame 2. The setting of the limiting blocks 10 plays a role in limiting and stabilizing the sliding block 8.

[0025] One end of the support rod 9 is fixedly connected to a fixing block 11, and the top of the fixing block 11 is fixedly connected to a support ring 12. The fixing sleeve 5 is fixedly connected to the surface of the support ring 12. The support ring 12 serves to support the wind ring 1.

[0026] Several sets of air blowing holes are opened on the inner side of the air ring 1. Two sets of connecting pipes 13 are connected through the outer surface of the air ring 1. One end of the connecting pipe 13 is connected to the conveying pipe 17, and one end of the conveying pipe 17 is connected to the fan 18. The fan 18 is used to deliver air.

[0027] The top and bottom of the support frame 2 are fixedly connected to the protective shell 14, and the two sides of the protective shell 14 are fixedly connected to the connecting rod 15. The connecting rod 15 serves as a support.

[0028] One end of the connecting rod 15 is fixedly connected to the mounting plate 16. The surface of the mounting plate 16 has four sets of positioning holes arranged in a rectangular array. The positioning holes facilitate installation.

[0029] The top of the fixed sleeve 5 is provided with an insertion hole that matches the limiting post 4, and the bottom of the limiting post 4 is provided with a slot that matches the locking block 603. The slot facilitates the locking of the locking block 603.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When it is necessary to disassemble the air ring 1, press the sliding plate 602 so that the sliding plate 602 squeezes the support spring 601, and then the locking block 603 disengages from the slot on the limiting post 4, pull the air ring 1, and pull the limiting post 4 out of the fixed sleeve 5.

[0032] Second step: When installation is required, insert the limiting post 4 into the fixing sleeve 5, then loosen the sliding plate 602, so that the support spring 601 generates elastic force to restore its deformation, push the sliding plate 602, and make the locking block 603 re-lock into the limiting post 4.

[0033] Third step: When it is necessary to adjust the height of the air ring 1, start the drive motor 702, so that the drive motor 702 drives the threaded screw 701 to rotate, and then the threaded screw 701 rotates inside the sliding block 8, and drives the sliding block 8 to rise and fall to the appropriate height. The sliding block 8 drives the support rod 9, so that the fixed block 11 pushes the support ring 12 and the air ring 1 to rise and fall.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] 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 film width adjustment and guiding device for a blown film machine, comprising two sets of air rings (1) and a support frame (2), characterized in that: The bottom of the wind ring (1) is fixedly connected to four sets of fixed plates (3) in a ring array. The bottom of the fixed plates (3) is fixedly connected to two sets of limiting posts (4). The bottom of the limiting posts (4) is inserted into a fixed sleeve (5). The inside of the fixed sleeve (5) is fixedly connected to a limiting component (6). The inside of the support frame (2) is rotatably connected to two sets of adjustment components (7). The limiting component (6) includes two sets of support springs (601) fixedly connected inside the fixed sleeve (5). One end of the support spring (601) is fixedly connected to a sliding plate (602), and the inside of the sliding plate (602) is fixedly connected to two sets of locking blocks (603). The adjustment assembly (7) includes a threaded screw (701) rotatably connected inside the support frame (2), and a drive motor (702) is fixedly connected to one end of the threaded screw (701).

2. The film width adjustment and guiding device for a blown film machine according to claim 1, characterized in that: Both sets of threaded screws (701) have sliding blocks (8) threadedly connected to their surfaces, and a support rod (9) is fixedly connected to one side of each sliding block (8).

3. The film width adjustment and guiding device for a blown film machine according to claim 2, characterized in that: Both sides of the sliding block (8) are fixedly connected to limit blocks (10), and the limit blocks (10) are slidably connected to the inner wall of the support frame (2).

4. The film width adjustment and guiding device for a blown film machine according to claim 2, characterized in that: One end of the support rod (9) is fixedly connected to a fixing block (11), and the top of the fixing block (11) is fixedly connected to a support ring (12). The fixing sleeve (5) is fixedly connected to the surface of the support ring (12).

5. The film width adjustment and guiding device for a blown film machine according to claim 1, characterized in that: The inner side of the air ring (1) is provided with several sets of air blowing holes. The outer surface of the air ring (1) is connected to two sets of connecting pipes (13). One end of the connecting pipe (13) is connected to the conveying pipe (17), and one end of the conveying pipe (17) is connected to the fan (18).

6. The film width adjustment and guiding device for a blown film machine according to claim 1, characterized in that: The top and bottom of the support frame (2) are fixedly connected to a protective shell (14), and the two sides of the protective shell (14) are fixedly connected to a connecting rod (15).

7. The film width adjustment and guiding device for a blown film machine according to claim 6, characterized in that: One end of the connecting rod (15) is fixedly connected to an mounting plate (16), and the surface of the mounting plate (16) has four sets of positioning holes arranged in a rectangular array.

8. The film width adjustment and guiding device for a blown film machine according to claim 1, characterized in that: The top of the fixed sleeve (5) is provided with an insertion hole that matches the limiting post (4), and the bottom of the limiting post (4) is provided with a slot that matches the card block (603).

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