Film blowing machine capable of conveniently adjusting air blowing amount

Abstract

The utility model discloses a film blowing machine convenient to adjust air blowing amount, which comprises an outer shell, a first cavity is arranged in the outer shell, filter screen clamping blocks are symmetrically arranged on two sides in the outer shell, a bearing plate is arranged in the outer shell, the bearing plate is positioned below the filter screen clamping blocks, and the first cavity is communicated with the first cavity. A through hole A and a through hole B are formed in the bearing plate, a bearing B and a rotary opening and closing assembly are arranged in the through hole B, the rotary opening and closing assembly is located in the first cavity, and the rotary opening and closing assembly is fixedly connected with the bearing plate. Compared with the prior art, the air blowing device has the advantages that the motor gear is driven to rotate through rotation of the motor, the motor gear is meshed with the gear, then the arc-shaped rod is driven to rotate, the arc-shaped rod drives the fan-shaped plate to rotate, the size of the air inlet is changed, and therefore the air blowing amount is adjusted. Meanwhile, impurities can be filtered through the filter plate, so that the content of impurities in the membrane cloth is reduced, and the membrane cloth is finer and smoother.

Description

Technical Field

[0001] This utility model relates to the field of plastic film production, specifically a blown film machine that facilitates adjustment of the blowing volume. Background Technology

[0002] A blown film machine is a piece of equipment used to produce plastic films. It melts plastic granules and then blows them into films using a blowing process. Its main components include an extruder, a die, and a cooling device. The working principle involves extruding molten plastic through a die to form a tubular preform, which is then inflated and cooled to set its shape before being finally rolled up. Films produced by blown film machines are widely used in packaging, agriculture, medical, and construction industries, offering advantages such as high efficiency, low cost, and stable quality.

[0003] Existing blown film machines on the market do not allow for adjustment of the blowing volume. Different equipment is required for blowing when producing films of different sizes, which increases the factory's production costs and reduces profits.

[0004] However, existing patents have the following drawbacks:

[0005] (1) Existing technology makes it inconvenient to adjust the blowing volume;

[0006] (2) Existing technologies rarely include filtration devices;

[0007] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a blown film machine that is easy to adjust the blowing volume, which can not only adjust the blowing volume, but also filter impurities.

[0009] To solve the above problems, the technical solution of this utility model is: a blown film machine with easily adjustable blowing volume, comprising:

[0010] The outer shell has a first cavity inside. Filter clip blocks are symmetrically arranged on both sides inside the outer shell. A load-bearing plate is arranged inside the outer shell, located below the filter clip blocks. The load-bearing plate has an A through hole and a B through hole, and a B bearing is arranged in the B through hole.

[0011] A blown film nozzle, located at the upper end of the outer casing;

[0012] A rotating opening and closing assembly is located inside the first cavity and is fixedly connected to the load-bearing plate.

[0013] The motor has its output end fixedly connected to bearing B and its output end rotatably connected to the load-bearing plate.

[0014] Motor gear, which is fixedly connected to the motor;

[0015] A filter plate, located above the filter screen clip block, has A-threaded holes on both sides;

[0016] A fan is located at the upper end of the first cavity and is fixedly connected to the outer casing.

[0017] Furthermore, the rotary opening and closing assembly includes a base plate, a gear, an arc-shaped rod, a disc frame, and a sector plate. The base plate has five cylindrical protrusions, and the gear has five arc-shaped grooves. The gear has five through holes, and the cylindrical protrusions slide within the arc-shaped grooves of the gear. The arc-shaped rod has through holes at both ends, and one end of the arc-shaped rod is hinged to the gear. The disc frame has five through holes, and the sector plate has through holes at both ends. The sector plate is hinged to the arc-shaped rod and the disc frame.

[0018] Furthermore, the upper end of the motor is fixedly connected to the motor bracket, and the motor bracket is fixedly connected to the outer casing.

[0019] Furthermore, the filter clip block has B threaded holes at both ends, the B threaded holes are threaded to the bolts, the bolts are threaded to the A threaded holes, and the bolts are threaded to the nuts.

[0020] Furthermore, the cylindrical protrusion consists of two cylindrical sections, one larger at the top and one smaller at the bottom.

[0021] Furthermore, the motor gear meshes with the gear.

[0022] Furthermore, the arc-shaped rod, the fan-shaped plate, the cylindrical protrusion, and the circular groove on the gear are each arranged in a circumferential array of five.

[0023] The advantages of this invention compared to existing technologies are as follows:

[0024] (1) This utility model uses the rotation of the motor to drive the rotation of the motor gear, the meshing of the motor gear and the gear to drive the rotation of the arc rod, and the arc rod to drive the rotation of the fan plate, thereby changing the size of the air inlet and thus changing the blowing volume.

[0025] (2) This utility model can filter impurities through the filter plate, thereby reducing impurities in the membrane cloth and making the membrane cloth more delicate; Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0027] Figure 2 This is a cross-sectional view of the present invention.

[0028] Figure 3 This is a three-dimensional structural diagram of the rotating opening and closing component of this utility model.

[0029] As shown in the figure: 1. Outer shell; 101. Filter screen clip block; 102. Load-bearing plate; 2. Film blowing nozzle; 3. Rotary opening and closing assembly; 301. Base plate; 302. Gear; 303. Arc rod; 304. Disc frame; 305. Fan-shaped plate; 306. Cylindrical protrusion; 4. Motor; 5. Motor gear; 6. Filter plate; 7. Bolt; 8. Nut; 9. Fan; 10. Motor bracket; Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0031] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0032] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0033] like Figures 1 to 3 As shown, this embodiment proposes a blown film machine with easily adjustable air volume, including an outer casing 1, a blown film nozzle 2, a rotating opening and closing assembly 3, a motor 4, a motor gear 5, a filter plate 6, bolts 7, nuts 8, a fan 9, and a motor bracket 10. The outer casing 1 has a first cavity inside. Filter screen clips 101 are symmetrically arranged on both sides inside the outer casing 1. Both ends of the filter screen clips 101 have B-threaded holes, which are threaded to bolts 7. Bolts 7 are threaded to A-threaded holes and nuts 8. A load-bearing plate 102 is provided inside the outer casing 1, and the load-bearing plate 102 is located on the filter screen clips. Below block 101, the load-bearing plate 102 has an A through hole and a B through hole. A B bearing is installed in the B through hole. The blown film nozzle 2 is located at the upper end of the outer shell 1. The blower 9 is located at the upper end of the first cavity and is fixedly connected to the outer shell 1. The upper end of the motor 4 is fixedly connected to the motor bracket 10, and the motor bracket 10 is fixedly connected to the outer shell 1. The rotating opening and closing assembly 3 is located inside the first cavity and is fixedly connected to the load-bearing plate 102. The filter plate 6 is located above the filter screen clip block 101. The filter plate 6 has A threaded holes on both sides and is bolted to the filter screen clip block 101. The connection is reliable and convenient.

[0034] The output end of motor 4 is fixedly connected to bearing B, and the output end of motor 4 is rotatably connected to the load-bearing plate 102. Motor gear 5 is fixedly connected to motor 4. The rotating opening and closing assembly includes a base plate 301, gear 302, arc rod 303, disc frame 304, and sector plate 305. Five cylindrical protrusions 306 are provided on the base plate 301, and five arc-shaped grooves are provided on the gear 302. The gear 302 has five through holes, and the cylindrical protrusions 306 slide in the arc-shaped grooves of the gear 302. Through holes are provided at both ends of the arc rod 303, and one end of the arc rod 303 is hinged to the gear 302. Five through holes are provided on the disc frame 304, and through holes are provided at both ends of the sector plate 305. The sector plate 305 is hinged to the arc rod 303 and the disc frame 304. Motor gear 5 meshes with gear 302. The cylindrical protrusions 306 are two cylindrical sections, one larger at the top and one smaller at the bottom. The body, the arc rod 303, the sector plate 305, the cylindrical protrusion 306, and the circular grooves on the gear 302 are arranged in a circular array of five. The motor 4 drives the motor gear 5 to rotate, and the motor gear 5 meshes with the gear 302. The rotation of the gear 302 causes the cylindrical protrusion 306 to slide in the arc groove of the gear 302. The rotation of the gear 302 drives the arc rod 303 to rotate, and the arc rod 303 drives the sector plate 305 to rotate, so as to adjust the size of the air inlet and thereby change the amount of air blown.

[0035] In actual use, the size of the air inlet is adjusted according to the required air volume. The motor 4 drives the motor gear 5 to rotate. The motor gear 5 meshes with the gear 302. The rotation of the gear 302 causes the cylindrical protrusion 306 to slide in the arc groove of the gear 302. The rotation of the gear 302 causes the arc rod 303 to rotate. The arc rod 303 causes the fan plate 305 to rotate, thereby achieving the purpose of adjusting the size of the air inlet and thus changing the air volume.

[0036] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A blown film machine that facilitates adjustment of the amount of blowing, characterized by: Include: The outer shell (1), the first cavity is opened inside the outer shell (1), the filter screen buckle block (101) is symmetrically arranged inside the outer shell (1), the bearing plate (102) is arranged inside the outer shell (1), the bearing plate (102) is located below the filter screen buckle block (101), the A through hole and the B through hole are opened on the bearing plate (102), the B bearing is arranged in the B through hole; Blow film mouth (2), the blow film mouth (2) is located at the upper end of the outer shell (1); Rotary open-close assembly (3), the rotary open-close assembly (3) is located inside the first cavity, and the rotary open-close assembly (3) is fixedly connected with the bearing plate (102); Motor (4), the output end of the motor (4) is fixedly connected with the B bearing; Motor gear (5), the motor gear (5) is fixedly connected to the motor (4); Filter plate (6), the filter plate (6) is located above the filter screen buckle block (101), and the A threaded hole is opened on both sides of the filter plate (6); Fan (9), the fan (9) is located at the upper end of the first cavity, and the fan (9) is fixedly connected with the outer shell (1).

2. The film blowing machine with easy adjustment of blowing amount according to claim 1, characterized in that: The rotary open-close assembly includes a bottom plate (301), a gear (302), an arc-shaped rod (303), a disc holder (304) and a sector plate (305), the bottom plate (301) is provided with five cylindrical protrusions (306), the gear (302) is provided with an arc-shaped sliding groove, the cylindrical protrusions (306) slide in the arc-shaped sliding groove of the gear (302), one end of the arc-shaped rod (303) is hinged to the gear (302), the sector plate (305) is hinged to the arc-shaped rod (303), and the sector plate (305) is hinged to the disc holder (304).

3. The film blowing machine with easy adjustment of blowing amount according to claim 1, characterized in that: The motor (4) is provided with a motor support (10) at the upper end, the motor support (10) is fixedly connected to the motor (4), and the motor support (10) is fixedly connected to the outer shell (1).

4. The film blowing machine with easy adjustment of blowing amount according to claim 1, characterized in that: The filter screen buckle block (101) is provided with a B threaded hole at both ends, the B threaded hole is provided with a bolt (7) inside, the B threaded hole is threadedly connected with the bolt (7), the bolt (7) is threadedly connected with the A threaded hole, and the bolt (7) is threadedly connected with a nut (8).

5. The film blowing machine with easy adjustment of blowing amount according to claim 2, characterized in that: The cylindrical protrusion (306) is a two-section cylinder with a large upper end and a small lower end.

6. The film blowing machine with easy adjustment of blowing amount according to claim 1, characterized in that: The motor gear (5) is engaged with the gear (302).

7. The film blowing machine with easy adjustment of blowing amount according to claim 2, characterized in that: The arc-shaped rod (303), the sector plate (305), the cylindrical protrusion (306) and the circular sliding groove on the gear (302) are respectively circumferentially arranged with five.

Images