Film blowing device for PE heat shrinkage film

Abstract

The utility model discloses a PE heat shrink film blowing device which comprises a bottom plate, a feeding mechanism is arranged on the top of the bottom plate, a conveying mechanism is arranged on one side of the feeding mechanism, and a film blowing mechanism is arranged on one side of the conveying mechanism. According to the film blowing device for the PE heat shrinkage film, plastic particles are shaken through the feeding mechanism, dust on the plastic particles is shaken off, the plastic particles are preheated in the conveying process through the conveying mechanism, the plastic particles are melted more easily, the plastic particles are evenly heated through the film blowing mechanism, and the film blowing efficiency is improved. The device is simple in structure, dust on the plastic particles can be effectively reduced, and the quality of the PE heat shrinkage film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE heat shrinkable film production, and particularly relates to a film blowing device for PE heat shrinkable film. Background Art

[0002] A film blowing machine is a mechanical device that heats and melts plastic particles and then blows them into films. Heat shrinkable films are used for the sales and transportation of various products. PE heat shrinkable film is a material with good toughness and is not easily shredded by ordinary plastic shredders. PE heat shrinkable film is widely applicable to the whole-piece collective packaging of products such as wines, canned drinks, mineral waters, various beverages, and cloth. This product has good flexibility, strong impact resistance and tear resistance, is not easily damaged, is not afraid of moisture, and has a large shrinkage rate.

[0003] A film blowing machine is a mechanical device that heats and melts plastic particles and then blows them into films. However, in actual use, plastic particles will be contaminated with dust. Existing film blowing machines cannot remove the dust on plastic particles, cannot preheat plastic particles, and the temperature in the melting tank is uneven, resulting in uneven melting of plastic particles and uneven thickness of the formed PE heat shrinkable film, which affects the quality of the PE heat shrinkable film. Summary of the Utility Model

[0004] In view of the above deficiencies in the prior art, the present utility model provides a film blowing device for PE heat shrinkable film, aiming to solve the problems that existing film blowing machines cannot remove the dust on plastic particles, cannot preheat plastic particles, the temperature in the melting tank is uneven, resulting in uneven melting of plastic particles and uneven thickness of the formed PE heat shrinkable film, which affects the quality of the PE heat shrinkable film, etc.

[0005] To achieve the above utility model purpose, the technical solution adopted by the present utility model is as follows:

[0006] A film blowing device for PE heat shrinkable film, comprising a bottom plate, wherein a feeding mechanism is arranged on the top of the bottom plate, a conveying mechanism is arranged on one side of the feeding mechanism, and a film blowing mechanism is arranged on one side of the conveying mechanism;

[0007] The feeding mechanism includes a material storage box fixedly arranged on the top of the bottom plate. A screen is arranged in the material storage box. A vibration motor is installed at the bottom of the screen. The bottom outer side of the material storage box is connected with an exhaust fan. The air inlet of the exhaust fan is communicated with the material storage box. A dust-proof cage is arranged in the material storage box near the air inlet of the exhaust fan. An outlet is opened on one side of the material storage box close to the conveying mechanism. A dust discharge port is opened on the bottom outer side of the material storage box. A box door is hinged on the outer side of the dust discharge port.

[0008] Further, a deflecting roller is arranged at the bottom of the film blowing mechanism. A pressing roller is arranged on one side of the deflecting roller. A winding roller is arranged on the side of the pressing roller away from the deflecting roller.

[0009] Furthermore, the conveying mechanism includes a screw tube fixedly arranged on the bottom plate. The bottom of the outer side of the screw tube is provided with a feed inlet. A screw is arranged inside the screw tube. A first motor is installed on the top of the screw tube. The output shaft of the first motor is fixedly connected to one end of the screw. The outer side of the screw tube is provided with a heat preservation sleeve. A heating tube is arranged between the screw tube and the heat preservation sleeve. The top of the outer side of the screw tube is provided with a discharge pipe.

[0010] Furthermore, the heating tube is spirally wound around the outer side of the screw tube.

[0011] Furthermore, the film blowing mechanism includes a tank body communicated with the discharge pipe. A support rod is arranged between the tank body and the bottom plate. A stirring assembly is arranged on the tank body. An extruder is arranged at the bottom of the tank body. A film blowing head is arranged at the bottom of the extruder.

[0012] Furthermore, the stirring assembly includes a second motor installed on the top of the tank body. A rotating shaft is fixedly connected to the output shaft of the second motor. A plurality of uniformly distributed stirring rods are arranged on the rotating shaft. Heating sleeves are arranged on the stirring rods.

[0013] The beneficial effects of the present utility model are as follows:

[0014] For the film blowing device of a PE heat shrinkable film of the present utility model, through the provided feeding mechanism, the plastic particles are jolted to shake off the dust on the plastic particles. Through the provided conveying mechanism, the plastic particles are preheated during the conveying process, making the plastic particles easier to melt. Through the provided film blowing mechanism, the plastic particles are heated evenly, melted and blown into a film. The structure of this device is simple, which can effectively reduce the dust on the plastic particles and improve the quality of the PE heat shrinkable film. Description of the Drawings

[0015] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is the cross-sectional structure schematic diagram of the present utility model.

[0017] Correspondence Table of Reference Numerals:

[0018] 1. Bottom plate; 2. Loading mechanism; 201. Material storage box; 202. Sieve mesh; 203. Vibration motor; 204. Exhaust fan; 205. Dust-proof cage; 206. Discharge port; 207. Dust exhaust port; 208. Box door; 3. Conveying mechanism; 301. Screw pipe; 302. Feed inlet; 303. Screw; 304. First motor; 305. Heat preservation sleeve; 306. Heating pipe; 307. Discharge pipe; 4. Film blowing mechanism; 401. Tank body; 402. Support rod; 403. Stirring assembly; 413. Second motor; 423. Rotating shaft; 433. Stirring rod; 443. Heating sleeve; 404. Extruder; 405. Film blowing head; 5. Deflecting roller; 6. Extrusion roller; 7. Winding roller. Detailed implementation manners

[0019] The following further describes the detailed implementation manners of the present utility model with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0020] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0021] In order to make the content of the present utility model easier to be clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0022] As Figures 1 to 2 shown, a film blowing device for PE heat shrinkable film includes a bottom plate 1. A loading mechanism 2 is provided on the top of the bottom plate 1. The loading mechanism 2 includes a material storage box 201 fixedly arranged on the top of the bottom plate 1. A sieve mesh 202 is arranged in the material storage box 201. A vibration motor 203 is installed at the bottom of the sieve mesh 202. The outer side surface of the bottom of the material storage box 201 is connected with an exhaust fan 204. The air inlet of the exhaust fan 204 is communicated with the material storage box 201. A dust-proof cage 205 is arranged in the material storage box 201 near the air inlet of the exhaust fan 204. A discharge port 206 is opened on one side of the material storage box 201 close to the conveying mechanism 3. A dust exhaust port 207 is opened on the outer side surface of the bottom of the material storage box 201. A box door 208 is hinged on the outer side surface of the dust exhaust port 207.

[0023] By arranging the loading mechanism 2, the plastic particle raw materials for producing PE heat shrinkable film are put into the material storage box 201. The vibration motor 203 vibrates to shake off the dust on the plastic particles. The exhaust fan 204 sucks air, and the dust is sucked to the lower part of the sieve mesh 202. The box door 208 is opened to centrally process the dust.

[0024] On one side of the feeding mechanism 2, there is a conveying mechanism 3. The conveying mechanism 3 includes a screw tube 301 fixedly arranged on the bottom plate 1. At the bottom of the outer side of the screw tube 301, there is a feeding port 302. Inside the screw tube 301, there is a screw 303. At the top of the screw tube 301, a first motor 304 is installed. The output shaft of the first motor 304 is fixedly connected to one end of the screw 303. The outer side of the screw tube 301 is provided with a heat preservation sleeve 305. Between the screw tube 301 and the heat preservation sleeve 305, there is a heating tube 306. The heating tube 306 is spirally wound around the outer side of the screw tube 301. At the top of the outer side of the screw tube 301, there is a discharge pipe 307.

[0025] Plastic particles enter the feeding port 302. The first motor 304 drives the screw 303 to rotate, conveying the plastic particles. The heating tube 306 preheats the plastic particles, making the plastic particles easier to melt. The heat preservation sleeve 305 reduces heat loss.

[0026] On one side of the conveying mechanism 3, there is a film blowing mechanism 4. The film blowing mechanism 4 includes a tank body 401 communicated with the discharge pipe 307. Between the tank body 401 and the bottom plate 1, there are support rods 402. On the tank body 401, there is a stirring assembly 403. The stirring assembly 403 includes a second motor 413 installed at the top of the tank body 401. The output shaft of the second motor 413 is fixedly connected with a rotating shaft 423. On the rotating shaft 423, there are several uniformly distributed stirring rods 433. On the stirring rods 433, there are heating sleeves 443. At the bottom of the tank body 401, there is an extruder 404. At the bottom of the extruder 404, there is a film blowing head 405. The extruder 404 and the film blowing head 405 are prior arts and will not be elaborated here again.

[0027] After the plastic particles enter the tank body 401, the second motor 413 drives the rotating shaft 423 to rotate. The rotating shaft 423 drives the stirring rods 433 and the heating sleeves 443 to rotate, uniformly heating the plastic particles. The melted plastic particles enter the extruder 404 for extrusion and film blowing.

[0028] At the bottom of the film blowing mechanism 4, there is a deflecting roller 5. The blown film is deflected by the deflecting roller 5.

[0029] On one side of the deflecting roller 5, there is a squeezing roller 6. The squeezing roller 6 squeezes the PE heat shrinkable film.

[0030] On the side of the squeezing roller 6 away from the deflecting roller 5, there is a winding roller 7. The winding roller 7 winds the PE heat shrinkable film.

[0031] The above are only the preferred embodiments of the utility model patent, and are not intended to limit the utility model patent. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model patent shall be included in the protection scope of the utility model patent.

Claims

1. A blown film device for a PE heat shrinkable film, characterized in that, It includes a bottom plate (1). An upper feeding mechanism (2) is provided at the top of the bottom plate (1). A conveying mechanism (3) is provided on one side of the upper feeding mechanism (2). A film blowing mechanism (4) is provided on one side of the conveying mechanism (3). The upper feeding mechanism (2) includes a material storage box (201) fixedly arranged at the top of the bottom plate (1). A screen (202) is arranged in the material storage box (201). A vibration motor (203) is installed at the bottom of the screen (202). A suction fan (204) is connected to the bottom outer side of the material storage box (201). The air inlet of the suction fan (204) is communicated with the material storage box (201). A dust-proof cage (205) is arranged in the material storage box (201) near the air inlet of the suction fan (204). An outlet (206) is opened on one side of the material storage box (201) close to the conveying mechanism (3). A dust discharge port (207) is opened on the bottom outer side of the material storage box (201). A box door (208) is hinged to the outer side of the dust discharge port (207).

2. The blown film device for a PE heat shrinkable film according to claim 1, wherein: A deflecting roller (5) is provided at the bottom of the film blowing mechanism (4). An extrusion roller (6) is provided on one side of the deflecting roller (5). A winding roller (7) is provided on the side of the extrusion roller (6) away from the deflecting roller (5).

3. The blown film device for a PE heat shrinkable film according to claim 1, characterized in that: The conveying mechanism (3) includes a screw conveyor pipe (301) fixedly arranged on the bottom plate (1). A feeding port (302) is provided at the bottom outer side of the screw conveyor pipe (301). A screw (303) is arranged in the screw conveyor pipe (301). A first motor (304) is installed at the top of the screw conveyor pipe (301). The output shaft of the first motor (304) is fixedly connected to one end of the screw (303). A heat preservation sleeve (305) is arranged on the outer side of the screw conveyor pipe (301). A heating pipe (306) is arranged between the screw conveyor pipe (301) and the heat preservation sleeve (305). An outlet pipe (307) is provided at the top outer side of the screw conveyor pipe (301).

4. The blown film device for a PE heat shrinkable film according to claim 3, characterized in that: The heating pipe (306) is spirally wound around the outer side of the screw conveyor pipe (301).

5. The blown film device for a PE heat shrinkable film according to claim 1, characterized in that: The film blowing mechanism (4) includes a tank body (401) communicated with the outlet pipe (307). A support rod (402) is arranged between the tank body (401) and the bottom plate (1). A stirring assembly (403) is arranged on the tank body (401). An extruder (404) is provided at the bottom of the tank body (401). A film blowing head (405) is provided at the bottom of the extruder (404).

6. The blown film device for a PE heat shrinkable film according to claim 5, characterized in that: The stirring assembly (403) includes a second motor (413) installed at the top of the tank body (401). A rotating shaft (423) is fixedly connected to the output shaft of the second motor (413). A plurality of uniformly distributed stirring rods (433) are arranged on the rotating shaft (423). A heating sleeve (443) is arranged on the stirring rod (433).

Images