Raw material melting device for PE bag production

Abstract

The utility model discloses a raw material melting device for PE bag production, including shell, support leg, hopper, first melting furnace and second melting furnace, the support leg is installed on the bottom end face of shell, the top end face of shell is provided with the hopper, the hopper is communicated with the first melting furnace, the first melting furnace is communicated with the second melting furnace, and the second melting furnace is communicated with the second melting furnace. The second melting furnace is located below the first melting furnace, a first driving motor is arranged on one side of the first melting furnace, and a second driving motor is arranged on the side, away from the first melting furnace, of the first driving motor. According to the raw material melting device for PE bag production, through two times of heating and heating during conveying of molten raw materials, the PE bag raw materials can be fully heated, so that the raw materials are completely converted into powder from a crystal phase, then the powder is converted into a liquid phase, the melting time is shortened, the raw materials can be prevented from being cooled in the conveying process when the molten raw materials are conveyed, and the production efficiency is improved. And the conveying port is blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of PE bag raw material melting equipment, in particular to a raw material melting device for PE bag production. Background Art

[0002] PE is the abbreviation of polyethylene, which is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins; it is a transparent plastic bag that can be used for packaging of clothing, bags, electronic products, etc. The melting of PE bag raw materials is an essential process in the production of PE bags, that is, the process of changing the raw materials from the crystal phase to the liquid phase. For example, application number CN202320046709.X discloses a raw material melting device for PE bag production. During the process of exporting the raw materials, the raw materials adhering to the inner wall of the melting tank are cleaned to avoid the waste and solidification of the raw materials.

[0003] A raw material melting device similar to the above-mentioned one for producing PE bags currently has the following shortcomings: the above-mentioned device cleans the raw material adhered to the inner wall of the melting tank by a cleaning scraper, so that the molten raw material is completely discharged from the discharge port, but the temperature at the outlet of the melting tank is different from the temperature at which the raw material is melted. Therefore, the raw material is easily cooled at the outlet of the melting tank, and the raw material is easily adhered to the outlet of the melting tank, which easily leads to blockage at the outlet of the melting tank.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a raw material melting device for PE bag production is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a raw material melting device for PE bag production, so as to solve the problem of avoiding blockage at the outlet of the melting tank proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material melting device for PE bag production, comprising a shell, a supporting foot, a hopper, a first melting furnace and a second melting furnace, the supporting foot is installed on the bottom end surface of the shell, the top end surface of the shell is provided with a hopper, and the hopper is connected to the first melting furnace, and the first melting furnace is connected to the second melting furnace, the second melting furnace is located below the first melting furnace, a first driving motor is provided on one side of the first melting furnace, and a second driving motor is provided on the side of the first driving motor away from the first melting furnace, a first electric heater is provided on the inner wall of the first melting furnace, and a first stirring shaft is provided in the middle of the inner cavity of the first melting furnace, a plurality of groups of first stirring rods are provided on the outer diameter surface of the first stirring shaft, a first solenoid valve is provided at the outlet of the bottom of the first melting furnace, a first driving wheel is provided at the output shaft of the output end of the first driving motor, and the first driving wheel is connected to the first driven wheel through a first transmission belt, the first driven wheel is located at one end of the first stirring shaft, and the first melting furnace is connected to the second melting furnace through a spiral output pipeline.

[0007] Furthermore, the spiral output pipe is located below the first solenoid valve, and the outlet at the bottom of the first melting furnace forms a connecting structure with the inlet at the upper end face of the spiral output pipe through the first solenoid valve, a feeding spiral rod is provided in the middle of the inner cavity of the spiral output pipe, and a second electric heater is provided on the inner wall of the spiral output pipe, and the outlet at the bottom of the spiral output pipe is connected to the inlet at the upper end face of the second melting furnace.

[0008] Furthermore, a second stirring shaft is arranged at the center of the inner cavity of the second melting furnace, and a second stirring rod is arranged on the outer diameter surface of the second stirring shaft, a scraper is also arranged on the outer diameter surface of the second stirring shaft, a third electric heater is arranged on the inner wall of the second melting furnace, a first bevel gear is arranged at the output shaft of the output end of the second driving motor, and the first bevel gear is meshed and connected with the second bevel gear, the second bevel gear is located at one end of the feeding screw rod, a second driving wheel is arranged below the first bevel gear, and the second driving wheel is connected to the second driven wheel through a second transmission belt, an outlet end is arranged at the bottom of the second melting furnace, and a second solenoid valve is arranged below the outlet end, and a fourth electric heater is arranged around the outlet end.

[0009] Furthermore, the first driving wheel and the first driven wheel form a belt transmission structure through the first transmission belt, the second driving wheel and the second driven wheel form a belt transmission structure through the second transmission belt, and the first bevel gear and the second bevel gear form a gear meshing structure.

[0010] Furthermore, the hopper and the first melting furnace form a communication structure, the first melting furnace and the second melting furnace form a communication structure through the first solenoid valve and the spiral output pipe, and the second melting furnace and the outlet end form a communication structure.

[0011] Furthermore, the scraper is in close contact with the inner wall of the second melting furnace, and the first electric heater, the second electric heater, the third electric heater, the fourth electric heater, the first solenoid valve, the second solenoid valve, the first drive motor and the second drive motor are all electrically connected to an external power supply.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the raw material melting device for PE bag production can fully heat the PE bag raw material by heating twice and also heating when conveying the molten raw material, so that the raw material is completely converted from the crystal phase to the powder, and then the powder is converted into the liquid phase, which reduces the melting time, and can prevent the raw material from cooling during the conveying process when conveying the molten raw material, resulting in blockage of the conveying port;

[0013] The raw material melting device for PE bag production heats the PE bag raw material for the first time through the first melting furnace, wherein the PE bag raw material is heated through the first electric heater, and during the heating process, the first driving motor is started, and the first driving motor drives the first stirring shaft to rotate through the first driving wheel, the first transmission belt and the first driven wheel, so that the first stirring rod stirs the molten PE bag raw material so that the PE bag raw material is fully melted, and at the same time, the molten PE bag raw material is transported to the second melting furnace through the spiral output pipeline, and the first solenoid valve is used to control the on and off of the first melting furnace to the inner cavity of the spiral output pipeline. When the molten PE bag raw material flows into the inner cavity of the spiral output pipeline, the second driving motor is started, and the second driving motor drives the feeding spiral rod to rotate through the first bevel gear and the second bevel gear, so that the molten PE bag raw material flows into the second melting furnace through the spiral output pipeline, and the second electric heater is used to ensure the constant temperature of the molten PE bag raw material, so as to avoid cooling of the molten PE bag raw material during the transportation process when the molten PE bag raw material is transported, so that the molten PE bag raw material blocks the transportation channel;

[0014] The raw material melting device for PE bag production performs secondary heating and melting of the molten PE bag raw material through the second melting furnace, wherein when the molten PE bag raw material flows into the inner cavity of the second melting furnace, the PE bag raw material is secondary heated by the third electric heater, and the second driving motor is started, the second driving motor drives the second stirring shaft to rotate through the second driving wheel, the second transmission belt and the second driven wheel, and the second stirring shaft drives the second stirring rod and the scraper to rotate, which can not only stir the molten PE bag raw material, but also prevent the molten PE bag raw material from adhering to the inner wall of the second melting furnace, the completely melted PE bag raw material flows out through the outlet end, the second solenoid valve is used to control the opening and closing of the outlet end, and when the completely melted PE bag raw material passes through the outlet end, the completely melted PE bag raw material is insulated by the fourth electric heater to ensure that the temperature of the completely melted PE bag raw material is constant, and the molten PE bag raw material is prevented from cooling during the transportation process, so that the molten PE bag raw material blocks the transportation channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view of a raw material melting device for PE bag production according to the utility model;

[0016] Figure 2 This is a schematic diagram of the front view structure of the first melting furnace of a raw material melting device for PE bag production according to the utility model;

[0017] Figure 3 This is a schematic diagram of the front view structure of the second melting furnace of a raw material melting device for PE bag production according to the utility model;

[0018] Figure 4 This is a schematic diagram of the front view structure of a scraper of a raw material melting device for PE bag production according to the utility model;

[0019] Figure 5 The utility model is a front view structural schematic diagram of the second driving motor of a raw material melting device for PE bag production.

[0020] In the figure: 1, shell; 2, support foot; 3, hopper; 4, first melting furnace; 5, second melting furnace; 6, first drive motor; 7, second drive motor; 8, first electric heater; 9, first stirring shaft; 10, first stirring rod; 11, first solenoid valve; 12, first driving wheel; 13, first transmission belt; 14, first driven wheel; 15, spiral output pipe; 16, feeding screw rod; 17, second electric heater; 18, second stirring shaft; 19, second stirring rod; 20, scraper; 21, third electric heater; 22, first bevel gear; 23, second bevel gear; 24, second driving wheel; 25, second transmission belt; 26, second driven wheel; 27, outlet end; 28, second solenoid valve; 29, fourth electric heater. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5The utility model provides a technical solution: a raw material melting device for PE bag production, comprising a shell 1, a supporting foot 2, a hopper 3, a first melting furnace 4 and a second melting furnace 5, the supporting foot 2 is installed on the bottom end surface of the shell 1, the top end surface of the shell 1 is provided with a hopper 3, and the hopper 3 is connected to the first melting furnace 4, and the first melting furnace 4 is connected to the second melting furnace 5, the second melting furnace 5 is located below the first melting furnace 4, a first driving motor 6 is provided on one side of the first melting furnace 4, and a second driving motor 7 is provided on the side of the first driving motor 6 away from the first melting furnace 4, a first electric heater 8 is provided on the inner wall of the first melting furnace 4, and a first stirring shaft 9 is provided in the middle of the inner cavity of the first melting furnace 4, and the outer diameter surface of the first stirring shaft 9 is provided with A plurality of groups of first stirring rods 10, a first solenoid valve 11 is provided at the outlet of the bottom of the first melting furnace 4, a first driving wheel 12 is provided at the output shaft of the output end of the first driving motor 6, and the first driving wheel 12 is connected to the first driven wheel 14 through the first transmission belt 13, the first driven wheel 14 is located at one end of the first stirring shaft 9, the first melting furnace 4 is connected to the second melting furnace 5 through a spiral output pipe 15, the spiral output pipe 15 is located below the first solenoid valve 11, and the outlet at the bottom of the first melting furnace 4 is connected to the inlet of the upper end surface of the spiral output pipe 15 through the first solenoid valve 11, a feeding screw rod 16 is provided in the middle of the inner cavity of the spiral output pipe 15, and a second electric heater 17 is provided on the inner wall of the spiral output pipe 15;

[0023] The PE bag raw material is heated for the first time by the first melting furnace 4, and the PE bag raw material is heated by the first electric heater 8 on the inner wall of the first melting furnace 4. During the heating process, the first driving motor 6 is started, and the first driving motor 6 drives the first stirring shaft 9 to rotate through the first driving wheel 12, the first transmission belt 13 and the first driven wheel 14, so that the first stirring rod 10 stirs the molten PE bag raw material, so that the PE bag raw material is fully melted. At the same time, the molten PE bag raw material is transported to the second melting furnace 5 by the spiral output pipe 15, and the first solenoid valve 11 is used to control the on-off of the first melting furnace 4 to flow to the inner cavity of the spiral output pipe 15. When the molten PE bag raw material flows into the inner cavity of the spiral output pipe 15, the second driving motor 7 is started, and the second driving motor 7 drives the feeding screw rod 16 to rotate through the first bevel gear 22 and the second bevel gear 23, so that the molten PE bag raw material flows into the second melting furnace 5 through the spiral output pipe 15, and the second electric heater 17 is used to ensure the constant temperature of the molten PE bag raw material, so as to avoid cooling of the molten PE bag raw material during the transportation process when the molten PE bag raw material is transported, resulting in blocking of the transportation channel;

[0024] The outlet at the bottom of the spiral output pipe 15 is connected to the inlet of the upper end surface of the second melting furnace 5. A second stirring shaft 18 is arranged at the center of the inner cavity of the second melting furnace 5, and a second stirring rod 19 is arranged on the outer diameter surface of the second stirring shaft 18. A scraper 20 is also arranged on the outer diameter surface of the second stirring shaft 18. A third electric heater 21 is arranged on the inner wall of the second melting furnace 5. A first bevel gear 22 is arranged at the output shaft of the output end of the second drive motor 7, and the first bevel gear 22 is meshed and connected with a second bevel gear 23. The second bevel gear 23 is located at the feeding spiral rod 16, a second driving wheel 24 is provided below the first bevel gear 22, and the second driving wheel 24 is connected to a second driven wheel 26 through a second transmission belt 25, an outlet port 27 is provided at the bottom of the second melting furnace 5, and a second solenoid valve 28 is provided below the outlet port 27, and a fourth electric heater 29 is provided around the outlet port 27, and the second melting furnace 5 is used to perform secondary heating and melting of the molten PE bag raw material, wherein when the molten PE bag raw material flows into the inner cavity of the second melting furnace 5, the third electric heater 21 is used to perform secondary heating of the PE bag raw material;

[0025] The second driving motor 7 is started, and the second driving motor 7 drives the second stirring shaft 18 to rotate through the second driving wheel 24, the second transmission belt 25 and the second driven wheel 26. At the same time, the second stirring shaft 18 drives the second stirring rod 19 and the scraper 20 to rotate, which can not only stir the molten PE bag raw material, but also prevent the molten PE bag raw material from adhering to the inner wall of the second melting furnace 5. The completely melted PE bag raw material flows out through the outlet end 27, and the outlet end 27 is controlled by the second solenoid valve 28. When the completely melted PE bag raw material passes through the outlet end 27, the fourth electric heater 29 is used to keep the completely melted PE bag raw material warm, so as to ensure that the temperature of the completely melted PE bag raw material is constant, and to prevent the molten PE bag raw material from cooling during the transportation process, so that the molten PE bag raw material blocks the transportation channel;

[0026] The first driving wheel 12 forms a belt transmission structure with the first driven wheel 14 through the first transmission belt 13, the second driving wheel 24 forms a belt transmission structure with the second driven wheel 26 through the second transmission belt 25, the first bevel gear 22 and the second bevel gear 23 form a gear meshing structure, the hopper 3 forms a communication structure with the first melting furnace 4, the first melting furnace 4 forms a communication structure with the second melting furnace 5 through the first solenoid valve 11 and the spiral output pipe 15, the second melting furnace 5 forms a communication structure with the outlet end 27, the scraper 20 is close to the inner wall of the second melting furnace 5, the first electric heater 8, the second electric heater 17, and the third electric heater 21, the fourth electric heater 29, the first solenoid valve 11, the second solenoid valve 28, the first drive motor 6 and the second drive motor 7 are all electrically connected to an external power supply, the first electric heater 8, the second electric heater 17, the third electric heater 21 and the fourth electric heater 29 are specifically a model SRY2-3 electric heater or other heaters with a heating function, and the first electric heater 8, the second electric heater 17, the third electric heater 21 and the fourth electric heater 29 are electrically connected to a temperature controller, which is specifically a model E5CC-B temperature controller or other controllers with a temperature measurement function.

[0027] Working principle: When using a raw material melting device for PE bag production, firstly, the PE bag raw material is put into the hopper 3, so that the PE bag raw material enters the first melting furnace 4, and the PE bag raw material is heated for the first time by the first melting furnace 4, and the PE bag raw material is heated by the first electric heater 8, and in the heating process, the first driving motor 6 is started, and the first driving motor 6 drives the first stirring shaft 9 to rotate through the first driving wheel 12, the first transmission belt 13 and the first driven wheel 14, so that the first stirring rod 10 stirs the molten PE bag raw material, and the molten PE bag raw material is transported to the second melting furnace 5 by the spiral output pipe 15, and the first solenoid valve 11 is used to control the on-off of the first melting furnace 4 to the inner cavity of the spiral output pipe 15. When the molten PE bag raw material flows into the inner cavity of the spiral output pipe 15, the second driving motor 7 is started, and the second driving motor 7 drives the feeding screw rod 16 to rotate through the first bevel gear 22 and the second bevel gear 23, so that the molten PE bag raw material flows into the second melting furnace 5 through the spiral output pipe 15;

[0028] The second electric heater 17 is used to ensure that the temperature of the molten PE bag raw material is constant, and the molten PE bag raw material is heated and melted for a second time by the second melting furnace 5. When the molten PE bag raw material flows into the inner cavity of the second melting furnace 5, the PE bag raw material is heated for a second time by the third electric heater 21, and the second drive motor 7 is started. The second drive motor 7 drives the second stirring shaft 18 to rotate through the second driving wheel 24, the second transmission belt 25 and the second driven wheel 26. The second stirring shaft 18 drives the second stirring rod 19 and the scraper 20 to rotate. The completely melted PE bag raw material flows out through the outlet port 27. The second solenoid valve 28 is used to control the opening and closing of the outlet port 27. When the completely melted PE bag raw material passes through the outlet port 27, the completely melted PE bag raw material is kept warm by the fourth electric heater 29.

Claims

1. A raw material melting device for PE bag production, comprising a housing (1), a support leg (2), a hopper (3), a first melting furnace (4) and a second melting furnace (5), characterized in that: The support foot (2) is mounted on the bottom end surface of the shell (1); a hopper (3) is provided on the top end surface of the shell (1); the hopper (3) is connected to a first melting furnace (4); the first melting furnace (4) is connected to a second melting furnace (5); the second melting furnace (5) is located below the first melting furnace (4); a first drive motor (6) is provided on one side of the first melting furnace (4); a second drive motor (7) is provided on a side of the first drive motor (6) away from the first melting furnace (4); a first electric heater (8) is provided on the inner wall of the first melting furnace (4); a first stirring shaft (9) is provided in the middle of the inner cavity of the first melting furnace (4); the first stirring shaft (9) is provided A plurality of groups of first stirring rods (10) are arranged on the outer diameter surface of the stirring shaft (9); a first solenoid valve (11) is arranged at the outlet of the bottom of the first melting furnace (4); a first driving wheel (12) is arranged at the output shaft of the output end of the first driving motor (6); the first driving wheel (12) is connected to a first driven wheel (14) via a first transmission belt (13); the first driven wheel (14) is located at one end of the first stirring shaft (9); the first melting furnace (4) is connected to the second melting furnace (5) via a spiral output pipe (15); the spiral output pipe (15) is located below the first solenoid valve (11); and the outlet of the bottom of the first melting furnace (4) is connected to the second melting furnace (5) via the first solenoid valve (11). The magnetic valve (11) and the inlet of the upper end surface of the spiral output pipe (15) form a communication structure, a feeding screw rod (16) is arranged in the middle of the inner cavity of the spiral output pipe (15), and a second electric heater (17) is arranged on the inner wall of the spiral output pipe (15), the outlet at the bottom of the spiral output pipe (15) is connected to the inlet of the upper end surface of the second melting furnace (5), a second stirring shaft (18) is arranged at the center of the inner cavity of the second melting furnace (5), and a second stirring rod (19) is arranged on the outer diameter surface of the second stirring shaft (18), a scraper (20) is also arranged on the outer diameter surface of the second stirring shaft (18), and the inner wall of the second melting furnace (5) is provided with a second stirring rod (19). A third electric heater (21); a first bevel gear (22) is provided at the output shaft of the output end of the second drive motor (7), and the first bevel gear (22) is meshingly connected with a second bevel gear (23); the second bevel gear (23) is located at one end of the feeding screw rod (16); a second driving wheel (24) is provided below the first bevel gear (22), and the second driving wheel (24) is connected to a second driven wheel (26) via a second transmission belt (25); an outlet end (27) is provided at the bottom of the second melting furnace (5), and a second solenoid valve (28) is provided below the outlet end (27); and a fourth electric heater (29) is provided around the outlet end (27).

2. A raw material melting device for PE bag production according to claim 1, characterized in that: The first driving wheel (12) forms a belt transmission structure with the first driven wheel (14) through the first transmission belt (13), the second driving wheel (24) forms a belt transmission structure with the second driven wheel (26) through the second transmission belt (25), and the first bevel gear (22) and the second bevel gear (23) form a gear meshing structure.

3. A raw material melting device for PE bag production according to claim 2, characterized in that: The hopper (3) and the first melting furnace (4) form a communication structure, the first melting furnace (4) forms a communication structure with the second melting furnace (5) via the first solenoid valve (11) and the spiral output pipe (15), and the second melting furnace (5) forms a communication structure with the outlet end (27).

4. A raw material melting device for PE bag production according to claim 3, characterized in that: The scraper (20) is in close contact with the inner wall of the second melting furnace (5), and the first electric heater (8), the second electric heater (17), the third electric heater (21), the fourth electric heater (29), the first solenoid valve (11), the second solenoid valve (28), the first drive motor (6) and the second drive motor (7) are all electrically connected to an external power supply.

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