Thermal shrinkage film blowing equipment

Abstract

The utility model relates to the technical field of film production, in particular to thermal shrinkage film blowing equipment which comprises a bottom plate, a heating furnace is arranged above the bottom plate, a heating box is installed on the inner side of the heating furnace, a supporting assembly is installed on the outer side of the heating furnace, and a feeding pipe which is obliquely arranged and communicated with the heating box is fixedly connected to the outer side of the heating box. According to the heating furnace, through the arrangement of the supporting assembly, the rotating motor, the lead screw, the bearing, the connecting plate, the limiting rod, the threaded cylinder and the fixing plate, when thin film production is needed, the rotating motor is started, an output shaft of the rotating motor drives the lead screw to rotate, and the threaded cylinder is spirally connected with the lead screw and drives the heating furnace to move upwards along with rotation of the lead screw; and a bearing, a connecting plate and a limiting rod are arranged, so that the lead screw can be positioned, lifting of the heating furnace is more stable, and a supporting assembly is arranged, so that the device can adapt to winding machines with different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a heat shrinkable film blowing device. Background Art

[0002] At present, plastic film refers to a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is used for packaging and as a coating layer, and a film blowing machine is a machine that heats and melts plastic particles and then blows them into a film. The application range of heat shrinkable film blowing equipment is very wide, mainly used for packaging in the fields of food, beverages, medicines, daily chemical products, etc. By using heat shrinkable film, the packaging quality and appearance of the product can be improved, and it also has moisture-proof, dust-proof, anti-theft and other functions. In recent years, with the advancement of science and technology and changes in market demand, heat shrinkable film blowing equipment is also constantly innovating and developing, moving towards the direction of high efficiency, energy saving, environmental protection and intelligence.

[0003] Existing heat-shrinkable film blowing equipment is widely used, but during film production, the produced film needs to be wound using the roller of a winding machine. The hot air inside the film is not discharged during winding, which may cause the film to stick together. Too much hot air inside the film may cause the film to rupture. In addition, the height of the existing device cannot be adjusted and cannot adapt to winding machines of different heights. Therefore, a heat-shrinkable film blowing equipment is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a heat shrinkable film blowing device to solve the problems raised in the above background technology that the hot air in the film is not discharged, which may cause the film to stick or break and the height of the existing device cannot be adjusted.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A heat shrinkable film blowing equipment comprises a base plate, a heating furnace is provided above the base plate, a heating box is installed on the inside of the heating furnace, a support assembly is installed on the outside of the heating furnace, a feed pipe which is fixedly connected to the outside of the heating box and is arranged obliquely and passes through the heating box, a box cover is installed on the top of the heating box, a discharge pipe which is fixedly connected to the top of the box cover and is arranged vertically and passes through the box cover, a condensing sleeve is fixedly connected to the outside of the discharge pipe, a condensing water pipe which passes through the condensing sleeve is fixedly connected to the outside of the condensing sleeve, a vertically arranged air inlet pipe is provided on the inside of the discharge pipe, an insulation shell located on the inside of the heating box is fixedly connected to the outside of the air inlet pipe, and an air inlet assembly is installed below the air inlet pipe.

[0007] Preferably, the support assembly includes a rotating motor fixedly connected to the top of the base plate, the top of the rotating motor output shaft is fixedly connected to a vertically arranged screw, the top of the screw is fixedly connected to the inner ring of the bearing, the outer side of the outer ring of the bearing is fixedly connected to a symmetrically arranged connecting plate, the bottom end of the connecting plate is fixedly connected to a vertically arranged limit rod, the outer side of the screw is spirally connected to a threaded barrel, and the outer side of the threaded barrel is fixedly connected to a fixed plate.

[0008] Preferably, the support components are provided in multiple groups, and the support components are evenly distributed at the top edge of the base plate. The air inlet pipe is fixedly connected to the inside of the heating box and passes through the heating box. The bottom end of the limit rod is fixedly connected to the top of the base plate, and the fixed plate is fixedly connected to the bottom end of the heating furnace.

[0009] Preferably, the air intake assembly includes an air intake frame fixedly connected to the bottom end of the air intake duct and passing through the air intake duct, the bottom end of the air intake frame is fixedly connected to a bellows, the inside of the bellows is fixedly connected to a storage plate, the inside of the storage plate is fixedly connected to an air intake fan passing through the storage plate, one side of the air intake fan is provided with an exhaust fan fixedly connected to the inside of the storage plate and passing through the storage plate, the top of the storage plate is fixedly connected to a baffle, and a filter plate slidably connected to the inside of the bellows and passing through the bellows is provided below the storage plate.

[0010] Preferably, the baffle is located between the air inlet fan and the exhaust fan, and the outer side of the baffle is fixedly connected to the air inlet frame and the inner side of the air inlet pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the present invention, by providing a support assembly, a rotating motor, a screw rod, a bearing, a connecting plate, a limiting rod, a threaded barrel and a fixing plate, when film production is required, the rotating motor is started, and the output shaft of the rotating motor drives the screw rod to rotate. Since the threaded barrel is spirally connected to the screw rod, the threaded barrel drives the heating furnace to move upward as the screw rod rotates until the heating furnace moves to the desired position. The arrangement of the bearing, the connecting plate and the limiting rod can position the screw rod, making the lifting of the heating furnace more stable. The arrangement of the support assembly enables the device to adapt to winding machines of different heights.

[0013] 2. In the utility model, through the provision of an air inlet pipe, a heat-insulating shell, an air inlet assembly, an air inlet frame, a bellows, a storage plate, an air inlet fan, an exhaust fan, a baffle and a filter plate, when film production is carried out, the air inlet fan introduces outside air into the inner side of the cylindrical film. At this time, the temperature inside the cylindrical film is reduced, and the excess air in the cylindrical film is discharged through the channel on the other side of the baffle and the exhaust fan. The air inlet assembly can thereby reduce the temperature inside the cylindrical film and discharge the excess air in the cylindrical film to prevent the cylindrical film from breaking. The provision of the heat-insulating shell can insulate the heating box and prevent the heat of the heating box from being lost through the air inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the support assembly structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the heating furnace of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the heating box of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the connecting components of the air inlet assembly of the utility model.

[0019] In the figure: 1. Base plate; 2. Heating furnace; 3. Heating box; 4. Support assembly; 41. Rotating motor; 42. Screw; 43. Bearing; 44. Connecting plate; 45. Limit rod; 46. Threaded barrel; 47. Fixed plate; 5. Feed pipe; 6. Box cover; 7. Discharge pipe; 8. Condensation jacket; 9. Condensate pipe; 10. Air inlet pipe; 11. Insulation shell; 12. Air inlet assembly; 121. Air inlet frame; 122. Bellows; 123. Storage board; 124. Inlet fan; 125. Exhaust fan; 126. Baffle; 127. Filter plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0022] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0023] See also Figures 1-5 , the utility model provides a technical solution:

[0024] A heat shrink film blowing equipment includes a base plate 1, a heating furnace 2 is provided above the base plate 1, a heating box 3 is installed inside the heating furnace 2, a support assembly 4 is installed outside the heating furnace 2, a feed pipe 5 that is inclined and passes through the heating box 3 is fixedly connected to the outside of the heating box 3, a box cover 6 is installed on the top of the heating box 3, a discharge pipe 7 that is vertically arranged and passes through the box cover 6 is fixedly connected to the top of the box cover 6, a condensing sleeve 8 is fixedly connected to the outside of the discharge pipe 7, a condensing water pipe 9 that passes through the condensing sleeve 8 is fixedly connected to the outside of the condensing sleeve 8, a vertical air inlet pipe 10 is provided on the inside of the discharge pipe 7, an insulation shell 11 located inside the heating box 3 is fixedly connected to the outside of the air inlet pipe 10, an air inlet assembly 12 is installed below the air inlet pipe 10, the support assembly 4 includes a rotating motor 41 fixedly connected to the top of the output shaft of the rotating motor 41, a vertically arranged screw rod 42 is fixedly connected to the top of the screw rod 42, the inner ring of the bearing 43 is fixedly connected to the outside of the outer ring of the bearing 43 The bottom end of the limit rod 45 is fixedly connected to the bottom end of the heating furnace 2, and the bottom end of the limit rod 45 is fixedly connected to the bottom end of the heating furnace 2.

[0025] The air inlet assembly 12 includes an air inlet frame 121 fixedly connected to the bottom end of the air inlet pipe 10 and connected to the air inlet pipe 10, a bellows 122 fixedly connected to the bottom end of the air inlet frame 121, a storage plate 123 fixedly connected to the inside of the bellows 122, an inlet fan 124 fixedly connected to the inside of the storage plate 123 and passing through the storage plate 123, an exhaust fan 125 fixedly connected to the inside of the storage plate 123 and passing through the storage plate 123 is provided on one side of the inlet fan 124, a baffle 126 fixedly connected to the top of the storage plate 123, a filter plate 127 slidably connected to the inside of the bellows 122 and passing through the bellows 122 is provided below the storage plate 123, and the baffle 12 6 is located between the inlet fan 124 and the exhaust fan 125, and the outer side of the baffle 126 is fixedly connected to the air inlet frame 121 and the inner side of the air inlet pipe 10. When film production is carried out, the inlet fan 124 introduces external air into the inner side of the cylindrical film. At this time, the temperature inside the cylindrical film is reduced, and the excess air in the cylindrical film is discharged through the channel on the other side of the baffle 126 and the exhaust fan 125. The air inlet component 12 can thereby reduce the temperature inside the cylindrical film and discharge the excess air in the cylindrical film to prevent the cylindrical film from breaking. The setting of the insulation shell 11 can keep the heating box 3 warm and prevent the heat of the heating box 3 from being lost through the air inlet pipe 10.

[0026] Working process: Power on the equipment before use. When film production is required, first adjust the height of the heating furnace 2 and the heating box 3 according to the height of the winding machine, start the rotating motor 41 at the top of the bottom plate 1, and the output shaft of the rotating motor 41 drives the screw 42 on the inner side of the inner ring of the bearing 43 to rotate. Since the threaded cylinder 46 at one end of the fixed plate 47 is spirally connected to the screw 42, the threaded cylinder 46 drives the heating furnace 2 to move upward with the rotation of the screw 42 until the heating furnace 2 moves to the required position. The setting of the bearing 43, the connecting plate 44 and the limit rod 45 can position the screw 42, so that the lifting and lowering of the heating furnace 2 is more stable. The setting of the support assembly 4 enables the device to adapt to winding machines of different heights. Next, connect the feed pipe 5 to the feed pump, connect the condensate pipe 9 on the outside of the condensate sleeve 8 to the condensate pump, insert the filter plate 127 into the inside of the bellows 122 and start the heating furnace 2, the air inlet fan 124 and the exhaust fan 12 inside the storage plate 123 5. Start the feed pump, and the melted material enters the inner side of the heating box 3 through the feed pipe 5. When the material fills the heating box 3, the material is discharged through the gap between the discharge pipe 7 at the top of the box cover 6 and the air inlet pipe 10. The melted material is cooled by the condensed water in the condensation sleeve 8 to form a cylindrical film, which is wound around the outer side of the rotating roller of the winding machine for winding. At this time, the inlet fan 124 introduces the outside air into the inner side of the cylindrical film through the wind box 122, the air inlet frame 121 and the air inlet pipe 10. The dust in the air is isolated from the outside by the filter plate 127. At this time, the temperature inside the cylindrical film is reduced, and the excess air in the cylindrical film is discharged through the channel on the other side of the baffle 126 and the exhaust fan 125. The air inlet component 12 can thereby reduce the temperature inside the cylindrical film and discharge the excess air in the cylindrical film to prevent the cylindrical film from breaking. The setting of the insulation shell 11 can insulate the heating box 3 and prevent the heat of the heating box 3 from being lost through the air inlet pipe 10.

[0027] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat shrinkable film blowing device, comprising a bottom plate (1), characterized in that: A heating furnace (2) is provided above the bottom plate (1), a heating box (3) is installed inside the heating furnace (2), a support assembly (4) is installed outside the heating furnace (2), a feed pipe (5) which is arranged obliquely and passes through the heating box (3) is fixedly connected to the outside of the heating box (3), a box cover (6) is installed at the top of the heating box (3), a discharge pipe (7) which is arranged vertically and passes through the box cover (6) is fixedly connected to the top of the box cover (6), a condensation jacket (8) is fixedly connected to the outside of the discharge pipe (7), a condensation water pipe (9) which passes through the condensation jacket (8) is fixedly connected to the outside of the condensation jacket (8), a vertical air inlet pipe (10) is provided inside the discharge pipe (7), an insulation shell (11) located inside the heating box (3) is fixedly connected to the outside of the air inlet pipe (10), and an air inlet assembly (12) is installed below the air inlet pipe (10).

2. The heat shrinkable film blowing equipment according to claim 1, characterized in that: The support assembly (4) includes a rotating motor (41) fixedly connected to the top of the base plate (1), the top of the output shaft of the rotating motor (41) is fixedly connected to a vertically arranged screw rod (42), the top of the screw rod (42) is fixedly connected to the inner ring of a bearing (43), the outer side of the outer ring of the bearing (43) is fixedly connected to a symmetrically arranged connecting plate (44), the bottom end of the connecting plate (44) is fixedly connected to a vertically arranged limiting rod (45), the outer side of the screw rod (42) is spirally connected to a threaded barrel (46), and the outer side of the threaded barrel (46) is fixedly connected to a fixing plate (47).

3. The heat shrinkable film blowing equipment according to claim 2, characterized in that: The support components (4) are provided in multiple groups, and the support components (4) are evenly distributed at the top edge of the bottom plate (1). The air inlet pipe (10) is fixedly connected to the inside of the heating box (3) and passes through the heating box (3). The bottom end of the limiting rod (45) is fixedly connected to the top of the bottom plate (1), and the fixing plate (47) is fixedly connected to the bottom end of the heating furnace (2).

4. The heat shrinkable film blowing equipment according to claim 1, characterized in that: The air intake assembly (12) includes an air intake frame (121) fixedly connected to the bottom end of the air intake pipe (10) and communicating with the air intake pipe (10); the bottom end of the air intake frame (121) is fixedly connected to a bellows (122); the inner side of the bellows (122) is fixedly connected to a storage plate (123); the inner side of the storage plate (123) is fixedly connected to an air intake fan (124) that passes through the storage plate (123); one side of the air intake fan (124) is provided with an exhaust fan (125) that is fixedly connected to the inner side of the storage plate (123) and passes through the storage plate (123); the top end of the storage plate (123) is fixedly connected to a baffle (126); and a filter plate (127) that is slidably connected to the inner side of the bellows (122) and passes through the bellows (122) is provided below the storage plate (123).

5. The heat shrinkable film blowing equipment according to claim 4, characterized in that: The baffle (126) is located between the air inlet fan (124) and the exhaust fan (125), and the outer side of the baffle (126) is fixedly connected to the air inlet frame (121) and the inner side of the air inlet pipe (10).

Images