A deviation correcting device of a film blowing machine

Abstract

This utility model relates to the field of web guiding devices and discloses a web guiding device for a blown film machine, including a mounting plate with an extension component fixedly connected to one side of the mounting plate. In operation, this web guiding device, through the setting of a distance measuring component and an adjustment component, allows the web guiding groove to move a distance set on a second PLC controller according to the film width. The servo motor is then activated, driving a threaded rod to rotate. This rotation causes a mounting block to move along the threaded rod, which in turn moves the web guiding groove. A distance measuring instrument detects the displacement distance of the mounting block. When the set distance is reached, the second PLC controller stops the servo motor, ensuring the web guiding groove precisely stops at a preset position matching the current film width. This ensures the film remains centered on the equipment's trajectory during subsequent traction and winding processes, and allows the device to be used for processing films of different widths.

Description

Technical Field

[0001] This utility model relates to the field of correction device technology, and in particular to a correction device for a blown film machine. Background Technology

[0002] With the increasingly widespread application of plastic film in many fields such as daily life and industrial production, the plastic film manufacturing industry has also flourished. As a key piece of equipment for producing plastic film, the blown film machine works by heating and melting plastic particles, filtering the molten plastic through the die head of the extruder, extruding it from the heated die head, cooling it through inner and outer cold air rings to inflate it into a film bubble, and finally collecting the plastic film through a bubble stabilizer, herringbone plate, traction roller, and winding device.

[0003] In existing devices, the alignment grooves are mostly fixed during use. When dealing with membranes of different widths, the alignment grooves need to be reinstalled, which is not only time-consuming but also quite troublesome. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a correction device for a blown film machine, which solves the problem mentioned in the background art that the correction grooves of existing devices are mostly fixed during use, and when dealing with films of different widths, the correction grooves need to be reinstalled, which is not only time-consuming but also troublesome to install.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a correction device for a blown film machine, comprising a mounting plate, an extension assembly fixedly connected to one side of the mounting plate, two sets of placement plates fixedly connected to the top surface of the mounting plate, and a support plate fixedly connected to one side of each of the two sets of placement plates. A ranging assembly is fixedly connected to the front of one set of support plates, and a crossbar is fixedly connected to one side of both sets of support plates. An adjustment assembly is provided inside the crossbar. The extension assembly includes two sets of extension rods fixedly connected to one side of the mounting plate, and a hydraulic rod is fixedly connected to one end of each set of extension rods. One end of each set of hydraulic rods is electrically connected to a first PLC controller via a power line. The ranging assembly includes a second PLC controller fixedly connected to the front of one set of support plates, and a distance meter is electrically connected to one end of the second PLC controller via a power line. The adjustment assembly includes a threaded rod disposed inside the crossbar, a servo motor fixedly connected to one end of the threaded rod, and a mounting block threadedly connected to the outer side of the threaded rod.

[0008] As a further embodiment of this utility model, a connecting rod is fixedly connected to one end of the mounting block, and a correction groove is fixedly connected to one end of the connecting rod. The connecting rod serves to fix the correction groove.

[0009] As a further embodiment of this utility model, an infrared transmitter is fixedly connected to one side of the correction groove, and an infrared receiver is fixedly connected to the other side of the correction groove. The infrared transmitter serves to position the membrane.

[0010] As a further embodiment of this utility model, a heat dissipation box is fixedly connected to the front of the support plate, and the servo motor is set inside the heat dissipation box. The heat dissipation box serves to store the servo motor.

[0011] As a further embodiment of this utility model, a rotating rod is rotatably connected to one side of each of the two sets of placement plates, and a guide roller is fixedly connected to one side of each of the two sets of rotating rods. The guide roller serves to guide the blown film.

[0012] As a further embodiment of this utility model, one end of each of the two sets of extension rods is fixedly connected to a fixing frame, and the bottom surface of the fixing frame is fixedly connected to a base plate. The base plate serves to install the device.

[0013] As a further embodiment of this utility model, a winding rod is rotatably connected to one side of the fixing frame, and a positioning member is fixedly connected to the other side of the fixing frame. The positioning member serves to fix the winding rod.

[0014] (III) Beneficial Effects

[0015] This utility model provides a correction device for a blown film machine, which has the following beneficial effects:

[0016] 1. The web-correcting device of this blown film machine, through the setting of the distance measuring component and the adjustment component, allows the web-correcting groove to move a distance set on the second PLC controller according to the width of the film during use. The servo motor is then started, and the rotation of the servo motor drives the threaded rod to rotate. The rotation of the threaded rod causes the mounting block to move on the threaded rod, and the movement of the mounting block causes the web-correcting groove to move. At this time, the distance measuring instrument is used to detect the displacement distance of the mounting block. When the set distance is reached, the second PLC controller controls the servo motor to stop rotating, so that the web-correcting groove accurately stops at the preset position matching the current film width. This ensures that the film is always on the central running trajectory of the equipment during subsequent traction and winding, and makes the device applicable to the processing of films of different widths.

[0017] 2. The correction device of this blown film machine, through the setting of the extension component, allows the first PLC controller to control the extension and retraction of two sets of hydraulic rods during use. The hydraulic rods drive the extension rod to move, and the movement of the extension rod can adjust the distance between the guide roller and the winding rod, so that films of different thicknesses and materials can pass through the guide roller into the winding stage with appropriate tension. This avoids the film stretching and deformation due to excessive tension, or the wrinkling and stacking due to insufficient tension, further ensuring the flatness and specification consistency of the film after winding, and improving the equipment's adaptability to diverse film products. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the extended component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the distance measuring component of this utility model.

[0022] In the diagram: 1. Mounting plate; 2. Extension assembly; 201. Extension rod; 202. Hydraulic rod; 203. First PLC controller; 3. Shelf; 4. Support plate; 5. Distance measuring assembly; 501. Second PLC controller; 502. Distance meter; 6. Crossbar; 7. Adjustment assembly; 701. Threaded rod; 702. Servo motor; 703. Mounting block; 8. Connecting rod; 9. Correction groove; 10. Infrared transmitter; 11. Infrared receiver; 12. Heat sink; 13. Rotating rod; 14. Guide roller; 15. Fixing frame; 16. Base plate; 17. Rewinding rod; 18. Positioning component. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a correction device for a blown film machine, including a mounting plate 1. An extension component 2 is fixedly connected to one side of the mounting plate 1. The distance between the take-up rod 17 and the guide roller 14 can be adjusted by the extension component 2. Two sets of placement plates 3 are fixedly connected to the top surface of the mounting plate 1. A support plate 4 is fixedly connected to one side of each of the two sets of placement plates 3. A distance measuring component 5 is fixedly connected to the front of one set of support plates 4. The distance measuring component 5 can measure the distance moved by the correction groove 9. A crossbar 6 is fixedly connected to one side of each of the two sets of support plates 4. An adjustment component 7 is provided inside the crossbar 6. The correction groove 9 can be adjusted by the adjustment component 7. For movement, the extension assembly 2 includes two sets of extension rods 201 fixedly connected to one side of the mounting plate 1. One end of each set of extension rods 201 is fixedly connected to a hydraulic rod 202. One end of each set of hydraulic rods 202 is electrically connected to a first PLC controller 203 via a power cord. The ranging assembly 5 includes a second PLC controller 501 fixedly connected to the front of one of the support plates 4. One end of the second PLC controller 501 is electrically connected to a rangefinder 502 via a power cord. The adjusting assembly 7 includes a threaded rod 701 disposed inside the crossbar 6. One end of the threaded rod 701 is fixedly connected to a servo motor 702, and the outer side of the threaded rod 701 is threadedly connected to a mounting block 703.

[0025] One end of the mounting block 703 is fixedly connected to a connecting rod 8, and one end of the connecting rod 8 is fixedly connected to a correction groove 9. The connecting rod 8 serves to fix the correction groove 9.

[0026] An infrared transmitter 10 is fixedly connected to one side of the correction groove 9, and an infrared receiver 11 is fixedly connected to the other side of the correction groove 9. The infrared transmitter 10 is used to position the membrane.

[0027] A heat sink 12 is fixedly connected to the front of the support plate 4. The servo motor 702 is located inside the heat sink 12. The heat sink 12 serves to store the servo motor 702.

[0028] One side of each of the two sets of storage plates 3 is rotatably connected to a rotating rod 13, and one side of each set of rotating rods 13 is fixedly connected to a guide roller 14. The guide roller 14 is used to guide the blown film.

[0029] One end of each of the two sets of extension rods 201 is fixedly connected to a fixing frame 15, and the bottom surface of the fixing frame 15 is fixedly connected to a base plate 16. The base plate 16 serves to install the device.

[0030] A winding rod 17 is rotatably connected to one side of the fixing frame 15, and a positioning member 18 is fixedly connected to the other side of the fixing frame 15. The positioning member 18 serves to fix the winding rod 17.

[0031] The model of the rangefinder 502 is: Turbots 200X. The above parameters and model can be selected according to the actual situation.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: During use, the distance to which the correction groove 9 should move is set on the second PLC controller 501 according to the width of the film. The servo motor 702 is started, and the rotation of the servo motor 702 drives the threaded rod 701 to rotate. The rotation of the threaded rod 701 causes the mounting block 703 to move on the threaded rod 701. The movement of the mounting block 703 drives the correction groove 9 to move. At this time, the rangefinder 502 is used to detect the displacement distance of the mounting block 703. When the set distance is reached, the second PLC controller 501 controls the servo motor 702 to stop rotating, so that the correction groove 9 stops precisely at the preset position that matches the current film width. This ensures that the film is always in the center of the equipment during the subsequent traction and winding process, avoiding problems such as film edge offset, wrinkles or uneven winding caused by film width mismatch, thereby improving product quality.

[0034] The second step: During use, the first PLC controller 203 controls the extension and retraction of the two sets of hydraulic rods 202. The hydraulic rods 202 drive the extension rod 201 to move. The movement of the extension rod 201 can adjust the distance between the guide roller 14 and the winding rod 17, so that films of different thicknesses and materials can enter the winding stage through the guide roller 14 with appropriate tension. This avoids the film from being stretched and deformed due to excessive tension, or from wrinkles and stacking due to insufficient tension. This further ensures the flatness and specification consistency of the film after winding and improves the equipment's adaptability to diverse film products.

[0035] 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.

[0036] 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.

[0037] 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 deviation rectifying device of a film blowing machine comprising a mounting plate (1), characterized in that: An extension assembly (2) is fixedly connected to one side of the mounting plate (1). Two sets of storage plates (3) are fixedly connected to the top surface of the mounting plate (1). A support plate (4) is fixedly connected to one side of each set of storage plates (3). A distance measuring assembly (5) is fixedly connected to the front of one set of support plates (4). A crossbar (6) is fixedly connected to one side of both sets of support plates (4). An adjustment assembly (7) is provided inside the crossbar (6). The extension assembly (2) includes two sets of extension rods (201) fixedly connected to one side of the mounting plate (1). One end of each set of extension rods (201) is fixedly connected to a hydraulic rod (202). One end of each set of hydraulic rods (202) is electrically connected to a first PLC controller (203) via a power line. The ranging component (5) includes a second PLC controller (501) fixedly connected to the front of one of the support plates (4), and one end of the second PLC controller (501) is electrically connected to a rangefinder (502) via a power line; The adjustment assembly (7) includes a threaded rod (701) disposed inside the crossbar (6), one end of which is fixedly connected to a servo motor (702), and the outer side of the threaded rod (701) is threadedly connected to a mounting block (703).

2. A film correction device for a film blowing machine according to claim 1, characterized in that: One end of the mounting block (703) is fixedly connected to a connecting rod (8), and one end of the connecting rod (8) is fixedly connected to a correction groove (9).

3. A film correction device for a film blowing machine according to claim 2, wherein: An infrared transmitter (10) is fixedly connected to one side of the correction groove (9), and an infrared receiver (11) is fixedly connected to the other side of the correction groove (9).

4. The web-correcting device for a blown film machine according to claim 1, characterized in that: The front of the support plate (4) is fixedly connected to a heat sink (12), and the servo motor (702) is located inside the heat sink (12).

5. The web-correcting device for a blown film machine according to claim 1, characterized in that: One side of each of the two sets of storage boards (3) is rotatably connected to a rotating rod (13), and one side of each of the two sets of rotating rods (13) is fixedly connected to a guide roller (14).

6. The web-correcting device for a blown film machine according to claim 1, characterized in that: One end of each of the two sets of extension rods (201) is fixedly connected to a fixing frame (15), and the bottom surface of the fixing frame (15) is fixedly connected to a base plate (16).

7. The web-correcting device for a blown film machine according to claim 6, characterized in that: A winding rod (17) is rotatably connected to one side of the fixing frame (15), and a positioning member (18) is fixedly connected to the other side of the fixing frame (15).

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