Film blowing device of film blowing machine

Abstract

The utility model discloses a film blowing device of a film blowing machine, which relates to the technical field of film blowing machines and comprises a blowing cylinder body, an outer top ring is arranged at the top end of the blowing cylinder body, a material channel is arranged in the blowing cylinder body, and air delivery channels are vertically arranged on the inner sides of outer surface layers on two sides of the blowing cylinder body. The film blowing device of the film blowing machine comprises a gas conveying channel, a gas outlet is formed in the top end of the gas conveying channel, a welding bead is arranged on the outer side of the top end of the gas outlet, and an edge increasing ring is arranged on the outer side of the welding bead. The end, with the radian face, of the edge increasing ring prevents a film body from deviating when materials are subjected to film blowing, meanwhile, due to the design of the edge increasing ring, a material film can be prevented from making contact with a structure with edges and corners, in this way, the stability when the materials are blown up is guaranteed, and a source protection environment can be provided for the film formed by blowing up the materials.

Description

TECHNICAL FIELD

[0001] The utility model discloses blowing film machine technical field, concretely is a kind of blowing film device of blowing film machine. BACKGROUND

[0002] Blowing film machine is a kind of equipment that melt plastic particles, and melt plastic is blown into film by blowing film process. Its working principle covers feeding, melting, filtering, blowing film, traction and winding steps. When feeding, dry plastic particles are added to the hopper, and gradually melt under the rotation of screw and external heating. The molten plastic is filtered through the filter screen of the machine head, and then comes out from the die port. After blowing and wind ring cooling, it becomes a film. Finally, it is pulled by the traction roller and wound into a cylindrical shape by the winding device.

[0003] The utility model discloses a blowing film device of blowing film machine, including base, feeding device, adjusting device and lifting device, the bottom of base is sequentially bolted from left to right with extruder and lower frame, the top left side of extruder is connected with outer cylinder, the inner side of outer cylinder is slidably connected with inner cylinder, the both sides of inner cylinder are provided with feeding device, the right end of extruder is communicated with connecting pipe, one end of connecting pipe penetrates through the left side wall of lower frame and extends to the inside of lower frame, and is communicated with blowing film machine, the top of blowing film machine is provided with wind ring, the blowing film machine is fixedly connected with stable bubble cover through wind ring, the outer circumferential center of stable bubble cover is bolted with fixed plate, the outer circumferential upper end of stable bubble cover is provided with adjusting device, the top center of lower frame is fixedly bolted with upper frame, the top of lower frame is provided with lifting device. The blowing film device of the blowing film machine is simple in structure, saves time and effort, and improves production efficiency.

[0004] The above-mentioned technology utilizes the stable bubble cover and other components to stabilize the stability of the material when it is blown into a film. However, the structure of the equipment body also affects the formation of the film bubble. Components with burrs and edges can cause damage to the outer surface of the film bubble.

[0005] Therefore, in view of the above, the existing deficiencies are studied and improved, and a blowing film device of a blowing film machine is proposed. Utility model content

[0006] The utility model discloses a blowing film device of blowing film machine, which solves the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a blowing film device of a blowing film machine, comprising: a blowing cylinder body, an outer top ring is arranged at the top end of the blowing cylinder body, a material channel is formed in the inside of the blowing cylinder body, a gas conveying channel is vertically arranged in the inside of the outer surface layer on both sides of the blowing cylinder body, a gas outlet is arranged at the top end of the gas conveying channel, a welding bead is arranged on the outside of the top end of the gas outlet, and an edge increasing ring is arranged on the outside of the welding bead.

[0008] The bottom end of the inside of the gas conveying channel is vertically provided with an auxiliary structure.

[0009] Further, the plane of the edge-increasing ring near the inside center of the blowing cylinder body is a plane with an arc, so that the edge-increasing ring can better contact the blown material film.

[0010] Further, the edge-increasing ring and the welding bead are welded, so that the position of the edge-increasing ring cannot be moved.

[0011] Further, the arc length formed by the edge-increasing ring and the welding bead is equal to the arc length of the gas outlet, so that the edge-increasing ring can completely surround the guiding plane of the gas outlet.

[0012] Further, the auxiliary structure comprises a gas collecting cylinder and a gas guide head, the bottom end of the inside of the gas conveying channel is vertically provided with the gas collecting cylinder, the top end of the gas collecting cylinder is provided with the gas guide head, and the top end part of the gas guide head is a flat structure, so that the gas guide head changes the structure of the gas guided by the gas collecting cylinder.

[0013] Further, the length of the flat structure of the top end of the gas guide head is slightly smaller than the length of the gas outlet, so that the gas guide head can maximize the gas guiding.

[0014] Further, the twist angle of the gas guide head is the same as the extension opening angle of the gas conveying channel, so that the gas guide head is installed.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When the gas flows to the port of the gas outlet on the inside of the gas conveying channel, the material in the blowing cylinder body starts to be guided out, at this time, the gas guided out of the gas outlet starts to blow the material film, and the edge-increasing ring is annularly arranged on the outside of the gas outlet, when the gas and the material film contact, one end of the edge-increasing ring with the arc surface avoids the film body from deviating when the material is blown, and the design of the edge-increasing ring can avoid the material film from contacting the structure with edges, so that the stability of the blown material is ensured, and the environment of the source of the film formed by the blown material is protected.

[0017] 2. The gas collecting cylinder receives the gas and guides the gas into the gas guide head, the vertically-shaped gas shape is changed into a flat gas shape, at this time, the gas guiding area of the gas guide head after the change is increased, so that the contact area between the gas and the material is increased, and the stability of the blowing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2It is the schematic diagram of the structure of the shaft side top view of the utility model;

[0020] Figure 3 It is the schematic diagram of the connecting structure of the first edge increasing ring and the welding bead of the utility model;

[0021] Figure 4 It is the schematic diagram of the connecting structure of the second edge increasing ring and the welding bead of the utility model;

[0022] Figure 5 It is the schematic diagram of the first cross section structure of the utility model;

[0023] Figure 6 It is the schematic diagram of the second cross section structure of the utility model;

[0024] Figure 7 It is the schematic diagram of the auxiliary structure of the utility model.

[0025] In the figure: 1, blow cylinder body; 2, outer top ring; 3, edge increasing ring; 4, gas outlet; 5, welding bead; 6, gas conveying channel; 7, auxiliary structure; 71, gas collecting cylinder; 72, gas guide head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As Figures 1-7 shown, a film blowing device of a film blowing machine, comprising: blow cylinder body 1, the top of blow cylinder body 1 is provided with outer top ring 2, material passage is set up in the inside of blow cylinder body 1, the inside of the outer surface layer of the both sides of blow cylinder body 1 is vertically provided with gas conveying channel 6, the top of gas conveying channel 6 is provided with gas outlet 4, the outside of the top of gas outlet 4 is provided with welding bead 5, the outside of welding bead 5 is provided with edge increasing ring 3;

[0028] The bottom of the inside of gas conveying channel 6 is vertically provided with auxiliary structure 7.

[0029] The rest, since welding bead 5 limits the position of edge increasing ring 3, and the side plane of edge increasing ring 3 is the plane with the arc, when the material film contacts the plane with the arc of edge increasing ring 3, the blowing direction of material film will be limited by edge increasing ring 3, so that material film is stably blown, the user can change the shape of edge increasing ring 3 into drop shape, so as to increase the use effect of edge increasing ring 3, and the user can also increase the area and height of edge increasing ring 3, so as to increase the path and effect when material film is blown.

[0030] The following effects and novel technologies are brought about:

[0031] In terms of effects, the edge ring 3 is positioned by the welding bead 5, and the arc surface can limit the inflation direction of the material film, thereby stabilizing the inflation of the material film. Moreover, by changing the shape of the edge ring 3 to a water droplet shape, increasing its area and height, etc., the inflation path and effect can also be increased. During the film blowing process, when the gas is blown out from the gas outlet 4 to inflate the material film, the edge ring 3 arranged annularly outside the gas outlet 4 has an arc surface that can prevent the material film from deviating and prevent the material film from contacting the angular structure, which not only ensures the stability of the material inflation but also provides source protection for the film formed by the inflated material. In terms of novel technologies, the design of the edge ring 3 is unique. It is fixed in position by the welding bead 5, uses its arc surface to control the inflation direction of the material film, and can optimize the inflation effect by changing the shape, area, and height. This technology of controlling the film blowing process by using a specific shape and adjustable edge ring 3 is unique in the film blowing device. In addition, when the gas flows inside the gas conveying channel 6 to the port of the gas outlet 4, the material inside the blow cylinder body 1 begins to be guided out. At this time, the gas blown out by the gas outlet 4 inflates the material film. This coordinated arrangement of gas conveying and material guiding is a novel technology that can effectively make the film blowing process orderly.

[0032] As shown in Figures 1-7 A film blowing device of a film blowing machine, the auxiliary structure 7 includes a gas collecting cylinder 71 and a gas guide head 72. The bottom end of the gas conveying channel 6 is vertically penetrated by the gas collecting cylinder 71, and the top end of the gas collecting cylinder 71 is provided with the gas guide head 72. The top end of the gas guide head 72 is of a flat structure:

[0033] In addition, after the gas received by the gas collecting cylinder 71 is guided into the gas guide head 72, the gas guide head 72 changes the original gas structure, so that the gas structure guided out by the gas guide head 72 is flat, which increases the contact area between the gas and the material film, and the user can extend the guiding port of the gas guide head 72 to reduce the contact time between the gas and the material film.

[0034] The following effects and novel technologies are brought about:

[0035] In the blowing device of the film blowing machine, the auxiliary structure 7 comprises a gas collecting cylinder 71 and a gas guide head 72, the gas collecting cylinder 71 is vertically arranged at the bottom end of the inner side of the gas conveying channel 6, the top end of the gas guide head 72 is in a flat structure, after the received gas is guided into the gas guide head 72, the gas guide head 72 changes the structure of the gas and guides the gas out in a flat shape, this change has many effects, on the one hand, the contact area between the gas and the material film is increased, thereby improving the stability of blowing, on the other hand, the user can extend the guide-out port of the gas guide head 72, thereby reducing the contact time between the gas and the material film, and the blowing effect can be more accurately controlled, from the novel technology, the gas guide head 72 converts the vertical gas into a flat guide-out, and this unique gas shape conversion structure is rarely seen in the field of film blowing technology, and the way of increasing the contact area by conversion to improve the stability of blowing provides a new idea for optimizing the film blowing effect, in addition, the length of the flat structure at the top end of the gas guide head 72 is slightly smaller than the length of the gas outlet 4, so that the gas guide head 72 can maximize the guide-out of the gas, and the twist angle of the gas guide head 72 is the same as the opening angle of the gas conveying channel 6, so that the gas guide head 72 is convenient to install, these designs reflect the consideration of the adaptability between the components, and improve the practicability and operability of the film blowing device.

[0036] Working principle: when the film blowing device of the film blowing machine is used, first, the blowing cylinder body 1 is installed at the mounting position of the external equipment, when the gas is guided into the inner side of the gas conveying channel 6, the gas collecting cylinder 71 receives the gas in the first step, the gas collecting cylinder 71 guides the gas into the gas guide head 72, the gas guide head 72 changes the structure of the gas into a flat gas structure, at this time, the gas guide head 72 continues to guide the gas out, when the gas rises to the gas outlet 4, the material guided out of the blowing cylinder body 1 also reaches the position flush with the gas outlet 4, the gas starts to blow the material, the welding bead 5 outside the gas outlet 4 limits the position of the edge ring 3, at this time, the blown material film contacts the surface with the arc of the edge ring 3, and the edge ring 3 limits the inclination or deformation of the blown material film, which is the working principle of the film blowing device of the film blowing machine.

[0037] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A blown film device for a blown film machine, comprising: The blower body (1) is characterized in that an outer top ring (2) is provided at the top of the blower body (1), a material channel is provided inside the blower body (1), an air conveying channel (6) is vertically provided on the inner side of the outer surface layer on both sides of the blower body (1), an air outlet (4) is provided at the top of the air conveying channel (6), a welding bead (5) is provided on the outer side of the top of the air outlet (4), and an edge-enhancing ring (3) is provided on the outer side of the welding bead (5). An auxiliary structure (7) is vertically installed at the bottom of the inner side of the gas transmission channel (6).

2. The film blowing device for a blown film machine according to claim 1, characterized in that, The plane of the edge-enhancing ring (3) near the inner center of the blow tube body (1) is a curved plane.

3. The film blowing device for a blown film machine according to claim 1, characterized in that, The edge-enhancing ring (3) and the welding bead (5) are connected by welding.

4. The film blowing device for a blown film machine according to claim 1, characterized in that, The approximate arc length formed by the edge-enhancing ring (3) and the welding bead (5) is equal to the arc length of the vent (4).

5. The film blowing device for a blown film machine according to claim 1, characterized in that, The auxiliary structure (7) includes an air collection cylinder (71) and an air guide head (72). The air collection cylinder (71) is vertically installed at the bottom of the inner side of the air supply channel (6). The air guide head (72) is installed at the top of the air collection cylinder (71). The top part of the air guide head (72) is a flat structure.

6. The film blowing device for a blown film machine according to claim 5, characterized in that, The length of the flat structure at the top of the air guide head (72) is slightly less than the length of the air outlet (4).

7. The film blowing device for a blown film machine according to claim 5, characterized in that, The twist angle of the air guide head (72) is the same as the extension opening angle of the air delivery channel (6).

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