Raw material melting device for plastic film production

Abstract

The utility model discloses a raw material melting device for plastic film production, which is characterized in that the inner side of a fixed support frame is sleeved with an in-out fixed cylinder, the top of the side end of the fixed support frame is symmetrically sleeved with a blanking isolation barrel, the bottom end of the blanking isolation barrel is connected with an injection fixed pipe in a penetrating manner, and the side end of the blanking isolation barrel is symmetrically clamped with lifting electric push rods; a sealing sliding cover is fixed to the top ends of the two lifting electric push rods, a transmission motor is installed at the top end of the sealing sliding cover through a motor base, a centrifugal supporting frame is clamped to an output shaft of the transmission motor, and an alignment feeding pipe is connected to the top end of the sealing sliding cover in a penetrating mode. And a lifting electric push rod is matched to drive a sealing sliding cover and an extrusion stirring frame to move downwards to push molten raw materials to be extruded mutually, bubbles in the raw materials are reduced, the quality and efficiency of subsequent forming are improved, two-section continuous heating melting is utilized, the melting time is prolonged, sufficient hot melting treatment is achieved, and the quality of subsequent forming is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to a raw material melting device for plastic film production. Background Technique

[0002] Plastic film refers to the film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is used for packaging and as a coating film. The share of plastic packaging and plastic packaging products in the market is increasing. Especially composite plastic flexible packaging has been widely used in the fields of food, medicine, chemical industry, etc. Now, when melting plastic masterbatch, an extruder is generally used for production processing.

[0003] However, when melting plastic masterbatch, due to the auger structure inside the extruder, while driving the masterbatch to move, heat melting is carried out at the same time. The moisture and contaminated air in the masterbatch will form bubbles, and the heat melting time is short, resulting in incomplete melting of the internal masterbatch, which affects the quality of the melted raw materials. Content of the Utility Model

[0004] The utility model provides a raw material melting device for plastic film production, which can effectively solve the problem that when melting plastic masterbatch, due to the auger structure inside the extruder, while driving the masterbatch to move, heat melting is carried out at the same time. The moisture and contaminated air in the masterbatch will form bubbles, and the heat melting time is short, resulting in incomplete melting of the internal masterbatch, which affects the quality of the melted raw materials.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A raw material melting device for plastic film production, including a fixed support frame, a processing component is arranged at the top of the fixed support frame. The processing component includes an inlet and outlet fixed cylinder, a blanking isolation barrel, an injection fixed pipe, a lifting electric push rod, a sealing sliding cover, a driving motor, a centrifugal support frame, an extrusion stirring frame, a counterpoint feeding pipe, a centralized placement barrel, a pumping pipe frame, a relay gas collecting barrel, an air pump, an external discharge pipe and an electric heating plate;

[0006] An inlet / outlet fixing cylinder is sleeved inside the fixed support frame. At the top of the side end of the fixed support frame, blanking isolation barrels are symmetrically sleeved. At the bottom end of the blanking isolation barrel, an injection fixing pipe is connected through penetration. At the side end of the blanking isolation barrel, lifting electric push rods are symmetrically clamped. At the top ends of the two lifting electric push rods, a sealing sliding cover is fixed. At the top end of the sealing sliding cover, a driving motor is installed through a motor base. A centrifugal support frame is clamped to the output shaft of the driving motor. At the bottom end of the centrifugal support frame, an extrusion stirring frame is welded. A positioning feeding pipe is connected through penetration at the top end of the sealing sliding cover. Centralized placement barrels are fixed to both the positioning feeding pipe and the top end of the sealing sliding cover. A extraction pipe rack is connected through penetration at the top end of the sealing sliding cover. At one end of the blanking isolation barrel, a relay gas collecting barrel is clamped. At one end of the relay gas collecting barrel, a gas pump is installed through a motor base. The gas pump and the relay gas collecting barrel are connected through an outer discharge pipe. Electric heating plates are installed inside both the inlet / outlet fixing cylinder and the blanking isolation barrel.

[0007] According to the above technical solution, the injection fixing pipe is installed through penetration at the side end of the inlet / outlet fixing cylinder. The input ends of the lifting electric push rod, the driving motor, the gas pump, and the electric heating plate are all electrically connected to the output end of an external power source.

[0008] According to the above technical solution, the sealing sliding cover is slidably connected to the blanking isolation barrel. Both the extrusion stirring frame and the centrifugal support frame are rotatably installed inside the blanking isolation barrel.

[0009] According to the above technical solution, one end of the extraction pipe rack is connected to one end of the relay gas collecting barrel through a connector. The positioning feeding pipe is installed through penetration at the bottom end of the centralized placement barrel.

[0010] According to the above technical solution, a matching component is arranged inside the inlet / outlet fixing cylinder. The matching component includes an extrusion electric push rod, a fixed installation sleeve, an extrusion motor, an extrusion auger, a sliding positioning box, a fixed spring, an outer discharge scraper, and an outer discharge extrusion block.

[0011] The extrusion electric push rods are symmetrically installed at the side end of the inlet / outlet fixing cylinder. One end of the extrusion electric push rod is installed with an extrusion motor through a fixed installation sleeve. An extrusion auger is clamped to the output shaft of the extrusion motor. A number of sliding positioning boxes are welded at equal intervals on the side end of the extrusion auger. A number of fixed springs are welded at equal intervals inside the sliding positioning box. An outer discharge scraper is fixed to the top end of the fixed spring. An outer discharge extrusion block is welded to one end of the extrusion auger.

[0012] According to the above technical solution, the extrusion auger and the outer discharge extrusion block are slidably installed inside the inlet / outlet fixing cylinder. The input ends of the extrusion electric push rod and the extrusion motor are both electrically connected to the output end of an external power source.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use.

[0014] 1. A processing component is provided. It feeds materials into the inner side of the blanking isolation barrel through an extraction pipe rack. The electric heating plate heats the inlet and outlet fixed cylinder and the blanking isolation barrel. The air pump, the outer discharge pipe, the relay gas collecting barrel and the extraction pipe rack extract the air and water vapor in the blanking isolation barrel. The driving motor drives the centrifugal support frame and the extrusion stirring frame to rotate at a high speed, realizing uniform blanking while stirring and melting the plastic masterbatch. By reducing the air pressure, the water in the masterbatch is heated to form water vapor. The air and water vapor are discharged externally, and using the low-pressure environment, the boiling point of water is reduced, accelerating its vaporization speed and reducing the impact of the hot steam on the subsequent melting. The lifting electric push rod drives the sealing sliding cover and the extrusion stirring frame to move downward to push the melted raw materials to squeeze each other, reducing the bubbles in the raw materials and improving the quality and efficiency of the subsequent molding. And using two-stage continuous heating and melting to extend the melting time, achieving sufficient hot melting treatment and improving the quality of the subsequent molding.

[0015] 2. A matching component is provided. The extrusion motor drives the extrusion auger to rotate, and the extrusion auger drives the plastic raw materials to move. The fixed spring drives the outer discharge scraper to fit against the inner wall of the inlet and outlet fixed cylinder, and the outer discharge scraper is used to scrape the inner wall of the inlet and outlet fixed cylinder, realizing continuous discharging and scraping and cleaning the inner wall, reducing the situation that the raw materials adhere to the inner wall and affect heat conduction, improving the stability of the hot melting treatment and discharging. The extrusion electric push rod drives the fixed mounting sleeve, the extrusion motor, the extrusion auger and the outer discharge extrusion block to extrude and discharge the plastic raw materials, and extrude and separate the bubbles in the plastic raw materials, improving the quality of the subsequent molding, reducing the situation of the plastic raw materials having faults, and improving the discharging speed. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the drawings:

[0018] Figure 1 is the three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the processing component of the present invention;

[0020] Figure 3 is the installation structural schematic diagram of the extraction pipe rack of the present invention;

[0021] Figure 4 is the structural schematic diagram of the matching component of the present invention;

[0022] Figure 5 is the installation structural schematic diagram of the fixed spring of the present invention;

[0023] Reference numerals in the figure: 1, fixed support frame;

[0024] 2, processing component; 201, inlet and outlet fixed cylinder; 202, blanking isolation barrel; 203, injection fixed pipe; 204, lifting electric push rod; 205, sealing sliding cover; 206, driving motor; 207, centrifugal support frame; 208, extrusion stirring frame; 209, alignment feeding pipe; 210, centralized placement barrel; 211, extraction pipe rack; 212, relay gas collection barrel; 213, air pump; 214, outer discharge pipe; 215, electric heating plate;

[0025] 3, matching component; 301, extrusion electric push rod; 302, fixed installation sleeve; 303, extrusion motor; 304, extrusion auger; 305, sliding alignment box; 306, fixed spring; 307, outer discharge scraper; 308, outer discharge extrusion block. Specific implementation mode

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Embodiment: As Figures 1-5 shown, the present invention provides a technical solution, a raw material melting device for plastic film production, including a fixed support frame 1. A processing component 2 is arranged at the top of the fixed support frame 1. The processing component 2 includes an inlet and outlet fixed cylinder 201, a blanking isolation barrel 202, an injection fixed pipe 203, a lifting electric push rod 204, a sealing sliding cover 205, a driving motor 206, a centrifugal support frame 207, an extrusion stirring frame 208, an alignment feeding pipe 209, a centralized placement barrel 210, an extraction pipe rack 211, a relay gas collection barrel 212, an air pump 213, an outer discharge pipe 214 and an electric heating plate 215;

[0028] Inside the fixed support frame 1, there is a feeding and discharging fixed cylinder 201 sleeved. At the top of the side end of the fixed support frame 1, there are feeding isolation barrels 202 symmetrically sleeved. At the bottom end of the feeding isolation barrel 202, there is an injection fixed pipe 203 connected through. The injection fixed pipe 203 is installed through the side end of the feeding and discharging fixed cylinder 201 to achieve stable feeding and discharging processing. On the side end of the feeding isolation barrel 202, there are lifting electric push rods 204 symmetrically clamped. At the top ends of the two lifting electric push rods 204, there is a sealing sliding cover 205 fixed. At the top end of the sealing sliding cover 205, there is a driving motor 206 installed through a motor base. The output shaft of the driving motor 206 is clamped with a centrifugal support frame 207. At the bottom end of the centrifugal support frame 207, there is an extrusion stirring frame 208 welded. The sealing sliding cover 205 is slidably connected with the feeding isolation barrel 202. The extrusion stirring frame 208 and the centrifugal support frame 207 are both rotatably installed inside the feeding isolation barrel 202 to achieve stable processing and ensure the stability of the equipment linkage. At the top end of the sealing sliding cover 205, there is a positioning feeding pipe 209 connected through. At the top ends of the positioning feeding pipe 209 and the sealing sliding cover 205, there are centralized placement barrels 210 fixed. The positioning feeding pipe 209 is installed through the bottom end of the centralized placement barrel 210, so that feeding can be carried out stably during hot melting. At the top end of the sealing sliding cover 205, there is an extraction pipe rack 211 connected through. One end of the extraction pipe rack 211 is connected with one end of a relay gas collecting barrel 212 through a rotary joint to achieve stable exhaust processing inside. One end of the feeding isolation barrel 202 is clamped with a relay gas collecting barrel 212. At one end of the relay gas collecting barrel 212, there is an air pump 213 installed through a motor base. The air pump 213 is connected with the relay gas collecting barrel 212 through an exhaust pipe 214. Inside the feeding and discharging fixed cylinder 201 and the feeding isolation barrel 202, there are electric heating plates 215 installed. For the stable operation of the equipment, the input ends of the lifting electric push rod 204, the driving motor 206, the air pump 213 and the electric heating plate 215 are all electrically connected with the output end of an external power supply.

[0029] Inside the feeding and discharging fixed cylinder 201, there is a matching component 3. The matching component 3 includes an extrusion electric push rod 301, a fixed installation sleeve 302, an extrusion motor 303, an extrusion auger 304, a sliding alignment box 305, a fixed spring 306, an outer discharge scraper 307 and an outer discharge extrusion block 308;

[0030] On the symmetric sides of the side end of the inlet and outlet fixed cylinder 201, extrusion electric push rods 301 are installed. One end of the extrusion electric push rod 301 is installed with an extrusion motor 303 through a fixed mounting sleeve 302. The output shaft of the extrusion motor 303 is clamped with an extrusion auger 304. A number of sliding alignment boxes 305 are welded equidistantly on the side end of the extrusion auger 304. A number of fixed springs 306 are welded equidistantly inside the sliding alignment box 305. The top end of the fixed spring 306 is fixed with an outer discharge scraper 307. One end of the extrusion auger 304 is welded with an outer discharge extrusion block 308. The extrusion auger 304 and the outer discharge extrusion block 308 are slidably installed inside the inlet and outlet fixed cylinder 201 to achieve stable feeding and discharging processing and improve the feeding stability. For the stable operation of the equipment, the input ends of the extrusion electric push rod 301 and the extrusion motor 303 are electrically connected to the output end of the external power supply.

[0031] The working principle and usage process of the present utility model: When it is necessary to carry out hot-melt feeding treatment on the raw materials of plastic film, the staff places the plastic masterbatch inside the centralized placement barrel 210 and feeds it to the position of the centrifugal support frame 207 inside the feeding isolation barrel 202 through the extraction pipe rack 211. The electric heating plate 215 heats the inside of the inlet and outlet fixed cylinder 201 and the feeding isolation barrel 202. The air in the relay gas collection barrel 212 is extracted by the air pump 213 and the outer discharge pipe 214, and the air in the feeding isolation barrel 202 is extracted by using the low-pressure relay gas collection barrel 212 and the extraction pipe rack 211. When the plastic masterbatch falls to the position of the centrifugal support frame 207, the plastic masterbatch is scattered under the action of high-speed rotation to achieve uniform feeding. During the feeding process, the masterbatch is heated and dissolved by the hot environment inside the feeding isolation barrel 202. The water containing impurities in the masterbatch forms water vapor in the low-pressure and high-temperature environment. The water vapor is discharged to the inside of the relay gas collection barrel 212 through the extraction pipe rack 211. At this time, the melted plastic raw materials are stirred by the extrusion stirring frame 208 to realize the turning of the plastic raw materials, discharge the water vapor containing impurities inside, and use continuous stirring to remove the bubbles formed by air and water vapor in the melted raw materials. Then, the lifting electric push rod 204 drives the sealing sliding cover 205 and the extrusion stirring frame 208 to move up and down along the feeding isolation barrel 202, and the melted plastic raw materials are extruded into the inside of the inlet and outlet fixed cylinder 201 through extrusion. By using the cooperation of two groups, continuous feeding processing is realized. The plastic masterbatch is preliminarily melted by the feeding isolation barrel 202, and then the plastic raw materials are secondarily melted by the inlet and outlet fixed cylinder 201, so as to fully melt the raw materials, and use pressurized feeding and exhaust compression to reduce the bubbles and water vapor containing impurities in the raw materials and improve the melting quality of the raw materials;

[0032] The plastic raw materials enter the inside of the inlet and outlet fixed cylinder 201. The extrusion auger 304 is driven by the extrusion motor 303 to rotate along the inlet and outlet fixed cylinder 201, and the plastic raw materials are driven to move by the extrusion auger 304. During the movement of the raw materials, the outer discharge scraper 307 is driven by the fixed spring 306 to move along the sliding alignment box 305 and fit to the inner wall of the inlet and outlet fixed cylinder 201. The inner wall of the inlet and outlet fixed cylinder 201 is scraped by the outer discharge scraper 307, and the plastic raw materials are driven to the discharge position. The extrusion electric push rod 301 drives the fixed mounting sleeve 302, the extrusion motor 303, the extrusion auger 304 and the outer discharge extrusion block 308 to extrude and discharge the plastic raw materials, and the air bubbles in the plastic raw materials are extruded and separated by extrusion treatment again to improve the quality of subsequent molding.

[0033] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A raw material melting device for producing plastic film, comprising a fixed support frame (1), characterized in that: A processing assembly (2) is arranged at the top of the fixed support frame (1), and the processing assembly (2) comprises an inlet and outlet fixed cylinder (201), a material discharge isolation barrel (202), an injection fixed pipe (203), a lifting electric push rod (204), a sealing sliding cover (205), a transmission motor (206), a centrifugal support frame (207), an extrusion stirring frame (208), a positioning feed pipe (209), a centralized placement barrel (210), an extraction pipe rack (211), a relay gas collection barrel (212), an air pump (213), an external discharge pipe (214) and an electric heating plate (215); The fixed support frame (1) is sleeved with an inlet and outlet fixed cylinder (201) on the inner side, and a discharge isolation barrel (202) is symmetrically sleeved with the top of the side end of the fixed support frame (1), and an injection fixed pipe (203) is connected through the bottom end of the discharge isolation barrel (202), and a lifting electric push rod (204) is symmetrically clamped on the side end of the discharge isolation barrel (202), and a sealing slide cover (205) is fixed on the top of the two lifting electric push rods (204), and a transmission motor (206) is installed on the top of the sealing slide cover (205) through a motor seat, and the output shaft of the transmission motor (206) is clamped with a centrifugal support frame (207), and the bottom end of the centrifugal support frame (207) is welded with an extrusion stirring frame (20 8), the top of the sealing sliding cover (205) is connected with a counter-position feed pipe (209), the tops of the counter-position feed pipe (209) and the sealing sliding cover (205) are both fixed with a centralized placement barrel (210), the top of the sealing sliding cover (205) is connected with an extraction pipe rack (211), one end of the discharge isolation barrel (202) is clamped with a relay gas collecting barrel (212), one end of the relay gas collecting barrel (212) is installed with an air pump (213) through a motor seat, the air pump (213) is connected to the relay gas collecting barrel (212) through an external exhaust pipe (214), and the inner sides of the inlet and outlet fixed cylinder (201) and the discharge isolation barrel (202) are both installed with electric heating plates (215).

2. A raw material melting device for plastic film production according to claim 1, characterized in that: The injection fixed pipe (203) is installed through the side end of the inlet and outlet fixed cylinder (201), and the input ends of the lifting electric push rod (204), the transmission motor (206), the air pump (213) and the electric heating plate (215) are all electrically connected to the output end of the external power supply.

3. A raw material melting device for plastic film production according to claim 1, characterized in that: The sealing sliding cover (205) is slidably connected to the material discharge isolation barrel (202), and the extrusion stirring frame (208) and the centrifugal support frame (207) are both rotatably installed on the inner side of the material discharge isolation barrel (202).

4. A raw material melting device for plastic film production according to claim 1, characterized in that: One end of the extraction pipe rack (211) is connected to one end of the relay gas collecting barrel (212) via an adapter, and the alignment feed pipe (209) is installed through the bottom end of the centralized placement barrel (210).

5. A raw material melting device for plastic film production according to claim 1, characterized in that: A matching assembly (3) is arranged inside the inlet and outlet fixed cylinder (201), and the matching assembly (3) comprises an extrusion electric push rod (301), a fixed installation sleeve (302), an extrusion motor (303), an extrusion auger (304), a sliding alignment box (305), a fixed spring (306), an outer row scraper (307) and an outer row extrusion block (308); An extrusion electric push rod (301) is symmetrically mounted on the side end of the inlet and outlet fixed cylinder (201); an extrusion motor (303) is mounted on one end of the extrusion electric push rod (301) via a fixed mounting sleeve (302); an extrusion auger (304) is clamped on the output shaft of the extrusion motor (303); a plurality of sliding alignment boxes (305) are equidistantly welded on the side end of the extrusion auger (304); a plurality of fixed springs (306) are equidistantly welded on the inner side of the sliding alignment box (305); an outer row scraper (307) is fixed on the top end of the fixed spring (306); and an outer row extrusion block (308) is welded on one end of the extrusion auger (304).

6. A raw material melting device for plastic film production according to claim 5, characterized in that: The extrusion auger (304) and the outer row extrusion block (308) are slidably mounted on the inner side of the inlet and outlet fixed cylinder (201), and the input ends of the extrusion electric push rod (301) and the extrusion motor (303) are both electrically connected to the output end of the external power supply.

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