Raw material melting device for plastic cup production

Abstract

The raw material melting device for plastic cup production comprises a melting box with a resistance heater on the inner wall, a feeding port is formed in the top end of the melting box in a penetrating mode, a vertical rod is rotatably connected to the inner wall of the center of the bottom end of the melting box through a bearing, and a plurality of mixing rods arranged in an annular array shape are fixedly connected to the wall of the vertical rod. The raw material mixing device has the beneficial effects that a vertical rod, a mixing rod and a scraping plate are conveniently driven to continuously rotate through a driving motor, a transmission wheel, a rotating rod, a first bevel gear and a second bevel gear, so that raw materials are continuously mixed during melting to improve the melting efficiency, and the scraping plate continuously rotates to scrape and clean the inner wall of the melting box; and moreover, hot air can be conveniently ascended and injected into the conveying barrel during melting through the smoke pipe, so that the raw materials are continuously dried during conveying, moisture is prevented from existing outside, and the later melting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a melting device, in particular to a raw material melting device for producing plastic cups, belonging to the technical field of plastic cup production. Background Art

[0002] Plastic cups are disposable containers for hot drinks. The largest users of disposable plastic cups are beverage stores. Many cold drink stores, milk tea shops and coffee shops provide take-away drinks in plastic cups. This kind of cup is a non-degradable material. Many people throw away the cups after drinking the drinks, which makes this kind of disposable plastic cup a major source of "white pollution". The basic raw material of plastic cups is polystyrene, which is produced by melting polystyrene and then molding.

[0003] At present, the raw material melting devices for plastic cup production all inject polystyrene directly into the melting box for melting, but the existing devices only have a melting function. The polystyrene is stacked together when injected and melted, resulting in insufficient melting during melting, which requires extending the melting time. In addition, part of the raw materials will stick to the inner wall of the melting box during melting and need to be cleaned later. At the same time, in order to ensure the quality of the raw materials for plastic cup production, the raw materials are often cleaned, resulting in a small amount of water in the raw materials during the melting process, and then generating water vapor during the melting process, which prolongs the melting time and increases consumption. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a raw material melting device for producing plastic cups.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A raw material melting device for producing plastic cups is designed, comprising a melting box with a resistance heater on the inner wall, the top of the melting box is penetrated by a feeding port, the central inner wall of the bottom end of the melting box is rotatably connected to a vertical rod through a bearing, the rod wall of the vertical rod is fixedly connected to a plurality of mixing rods arranged in a circular array, and every three of the mixing rods are commonly fixedly connected to a scraper with a silicone sleeve on the outside, the scraper is abutted against the inner wall of the melting box on a side away from the vertical rod, the rod wall of the vertical rod near the lower end is fixedly sleeved with a first bevel gear, and the box wall on one side of the melting box near the lower end is rotatably connected to a first rotating rod through a bearing, the first rotating rod is fixedly connected to a second bevel gear on a side close to the first bevel gear, the second bevel gear is meshed and connected to the first bevel gear, the other side of the first rotating rod passes through the bearing and extends to the outside of the melting box and is fixedly connected to a first transmission wheel, and the upper box wall on the side of the melting box near the first transmission wheel is fixedly connected to an L-shaped smoke pipe.

[0007] Preferably, the upper end of the smoke pipe is fixedly connected to a transport cylinder with an open side, and the two ends of the smoke pipe are respectively connected to the melting box and the transport cylinder, and a feeding port is penetrated through the box wall of the upper end of the transport cylinder away from the melting box, and an L-shaped plate is fixedly connected to the side of the transport cylinder away from the melting box, and a driving motor is fixedly connected to the inside of the L-shaped plate, and the output end of the driving motor is fixedly connected to a second rotating rod, and the rod walls corresponding to the second rotating rod and the first transmission wheel are fixedly sleeved with a second transmission wheel, and the side of the second rotating rod away from the driving motor is rotatably connected to the inside of the transport cylinder through a bearing and extends into the transport cylinder, and the rod wall of the second rotating rod is fixedly sleeved with a threaded fan blade, and the second transmission wheel and the first transmission wheel are jointly connected by a belt.

[0008] Preferably, both sides of the bottom wall of the melting box are fixedly connected with symmetrically arranged feeding pipes, and valves are installed on the walls of the feeding pipes.

[0009] Preferably, an auxiliary block is fixedly connected to the upper end of the melting box away from the feed port, and the upper end of the auxiliary block is fixedly connected to the lower end of the transport cylinder.

[0010] Preferably, a plurality of supporting legs arranged in a circular array are fixedly connected to the bottom end of the melting box.

[0011] Preferably, the feed port is located directly below the opening of the transport cylinder.

[0012] The utility model provides a raw material melting device for producing plastic cups, which has the beneficial effects of: arranging a driving motor, a transmission wheel, a rotating rod, a first bevel gear and a second bevel gear to conveniently drive the vertical rod, the mixing rod and the scraper to rotate continuously, so that the raw materials are continuously mixed when they are melted to increase the melting efficiency, and the continuous rotation of the scraper will scrape and clean the inner wall of the melting box, avoiding the need for more time for later cleaning, and the smoke pipe can conveniently inject hot air into the interior of the transport cylinder during melting, so that the raw materials are continuously dried during transportation, avoiding the presence of moisture on the outside, and increasing the later melting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a raw material melting device for producing plastic cups proposed by the utility model;

[0014] Figure 2 This is a side structural schematic diagram of a raw material melting device for producing plastic cups proposed by the utility model;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of a melting box of a raw material melting device for producing plastic cups proposed by the utility model;

[0016] Figure 4This is a schematic diagram of a top view and cross-section structure of a melting box in a raw material melting device for producing plastic cups proposed by the utility model;

[0017] Figure 5 The utility model is a schematic diagram of the disassembled structure of the threaded fan blades and the transport cylinder in a raw material melting device for producing plastic cups.

[0018] In the figure: melting box 1, feed port 2, vertical rod 3, mixing rod 4, scraper 5, first bevel gear 6, first rotating rod 7, second bevel gear 8, first transmission wheel 9, smoke pipe 10, transport cylinder 11, discharge port 12, L-shaped plate 13, drive motor 14, second rotating rod 15, second transmission wheel 16, threaded fan blades 17, belt 18, discharge pipe 19, auxiliary block 20, and support foot 21. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5, a raw material melting device for producing plastic cups, comprising a melting box 1 with a resistance heater on the inner wall, a feeding port 2 is opened through the top of the melting box 1, a vertical rod 3 is rotatably connected to the inner wall of the center of the bottom end of the melting box 1 through a bearing, a plurality of mixing rods 4 arranged in a ring array are fixedly connected to the rod wall of the vertical rod 4, and every three mixing rods 4 are commonly fixedly connected to a scraper 5 with a silicone sleeve on the outside, the scraper 5 is against the inner wall of the melting box 1 on the side away from the vertical rod 3, the rod wall of the vertical rod 3 near the lower end is fixedly sleeved with a first bevel gear 6, and a first rotating rod 7 is rotatably connected to the box wall of the side of the melting box 1 near the lower end through a bearing, a second bevel gear 8 is fixedly connected to the side of the first rotating rod 7 near the first bevel gear 6, the second bevel gear 8 is meshed and connected to the first bevel gear 6, the other side of the first rotating rod 7 passes through the bearing and extends to the outside of the melting box 1 and is fixedly connected to a first transmission wheel 9, the melting box 1 An L-shaped smoke pipe 10 is fixedly connected to the upper box wall on one side close to the first transmission wheel 9; a transport cylinder 11 with an open shape on one side is fixedly connected to the upper end of the smoke pipe 10, and both ends of the smoke pipe 10 are respectively connected to the melting box 1 and the transport cylinder 11, and a feeding port 12 is penetrated through the upper box wall on the side of the transport cylinder 11 away from the melting box 1, and an L-shaped plate 13 is fixedly connected to the side of the transport cylinder 11 away from the melting box 1, and a driving motor 14 is fixedly connected inside the L-shaped plate 13, and a second rotating rod 15 is fixedly connected to the output end of the driving motor 14, and a second transmission wheel 16 is fixedly sleeved on the rod wall corresponding to the second rotating rod 15 and the first transmission wheel 9, and the side of the second rotating rod 15 away from the driving motor 14 is rotatably connected to the inside of the transport cylinder 11 through a bearing and extends into the transport cylinder 11, and a threaded fan blade 17 is fixedly sleeved on the rod wall of the second rotating rod 15, and the second transmission wheel 16 and the first transmission wheel 9 are jointly connected by a belt 18.

[0021] The two sides of the bottom wall of the melting box 1 are fixedly connected with symmetrically arranged feeding pipes 19, and the pipe walls of the feeding pipes 19 are all equipped with valves, which is conducive to conveniently controlling the discharge of the melted raw materials through the valves on the feeding pipes 19.

[0022] An auxiliary block 20 is fixedly connected to the upper end of the melting box 1 away from the feed port 2 , and the upper end of the auxiliary block 20 is fixedly connected to the lower end of the transport cylinder 11 , which is beneficial to increase the installation stability of the transport cylinder 11 through the auxiliary block 20 .

[0023] A plurality of supporting legs 21 arranged in a circular array are fixedly connected to the bottom end of the melting box 1 , which is beneficial for conveniently increasing the overall supporting stability of the melting box 1 through the supporting legs 21 .

[0024] The feed port 2 is located directly below the opening of the transport cylinder 11 , which is conducive to conveniently feeding and melting the raw materials discharged from the inside of the transport cylinder 11 through the feed port 2 .

[0025] Working principle: when in use, first support the melting box 1 stably with a number of legs 21, and then start the resistance heater in the inner wall of the melting box 1. At this time, the resistance heater will increase the temperature inside the melting box 1. At the same time, the rising hot air will be injected into the inside of the transport cylinder 11 through the smoke pipe 10. The heat in the smoke will gradually cool down during the rising process, so as to facilitate the later drying of the raw materials and avoid the melting of the raw materials when they are moving. At this time, the drive motor 14 is started, and the output end of the drive motor 14 stably drives the second rotating rod 15 to rotate through the bearing. When the second rotating rod 15 rotates, it drives the threaded fan blades 17 and the second transmission wheel 16 to rotate. The rotation of the second transmission wheel 16 stably drives the first transmission wheel 9 to rotate through the belt 18. At this time, the first transmission wheel 9 is forced to push the first rotating rod 7. The first rotating rod 7 is forced to stably drive the second bevel gear 8 to rotate through the bearing. The second bevel gear 8 synchronously meshes and drives the first bevel gear 6. A bevel gear 6 is under force and cooperates with the bearing to stably drive the vertical rod 3 to rotate. When the vertical rod 3 rotates, it drives the mixing rod 4. The rotation of the mixing rod 4 will drive the scraper 5 to continuously rotate inside the melting box 1. At this time, the cleaned raw materials are injected into the inside of the conveying cylinder 11 from the discharge port 12, and the continuously rotating threaded fan blades 17 will push the raw materials to move. When the raw materials are moving, the hot air inside the conveying cylinder 11 will dry the raw materials to avoid the appearance of moisture inside. When the dried raw materials are injected into the melting box 1 through the opening of the conveying cylinder 11 and the feed port 2, the continuously rotating mixing rod 4 will stir the raw materials to avoid stacking and affecting melting. In addition, as the scraper 5 rotates continuously, the raw materials stuck to the inner wall of the melting box 1 will be scraped off to prevent sticking. When the raw materials inside the melting box 1 are completely melted, the discharge pipe 19 is opened in cooperation with the valve to discharge the melted raw materials, and then the plastic cup production machine is cooperated to cool and form the plastic cups.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw material melting device for producing plastic cups, characterized in that: The invention comprises a melting box (1) with a resistance heater on the inner wall, a feed port (2) is formed through the top of the melting box (1), a vertical rod (3) is rotatably connected to the inner wall of the center of the bottom end of the melting box (1) through a bearing, a plurality of mixing rods (4) arranged in a circular array are fixedly connected to the rod wall of the vertical rod (3), and every three mixing rods (4) are commonly fixedly connected to a scraper (5) with a silicone sleeve on the outside, the scraper (5) is against the inner wall of the melting box (1) on the side away from the vertical rod (3), and a first conical rod is fixedly sleeved on the rod wall near the lower end of the vertical rod (3). The melting box (1) is provided with a first rotating rod (7) rotatably connected to a side wall of the melting box (1) near the lower end through a bearing; a side of the first rotating rod (7) near the first bevel gear (6) is fixedly connected to a second bevel gear (8); the second bevel gear (8) is meshingly connected to the first bevel gear (6); the other side of the first rotating rod (7) passes through the bearing and extends to the outside of the melting box (1) and is fixedly connected to a first transmission wheel (9); and a smoke pipe (10) arranged in an L shape is fixedly connected to the upper side wall of the melting box (1) near the first transmission wheel (9).

2. A raw material melting device for producing plastic cups according to claim 1, characterized in that: The upper end of the smoke pipe (10) is fixedly connected to a transport cylinder (11) with one side being open. The two ends of the smoke pipe (10) are respectively connected to the melting box (1) and the transport cylinder (11). A material discharge port (12) is provided through the upper end of the box wall of the transport cylinder (11) on the side away from the melting box (1). An L-shaped plate (13) is fixedly connected to the side of the transport cylinder (11) away from the melting box (1). A driving motor (14) is fixedly connected inside the L-shaped plate (13). The driving motor (14) outputs The output end is fixedly connected to a second rotating rod (15), and the rod wall corresponding to the second rotating rod (15) and the first transmission wheel (9) is fixedly sleeved with a second transmission wheel (16), and the side of the second rotating rod (15) away from the driving motor (14) is rotatably connected to the inside of the transport cylinder (11) through a bearing and extends into the transport cylinder (11), and the rod wall of the second rotating rod (15) is fixedly sleeved with a threaded fan blade (17), and the second transmission wheel (16) and the first transmission wheel (9) are jointly transmission-connected by a belt (18).

3. A raw material melting device for producing plastic cups according to claim 1, characterized in that: Both sides of the bottom wall of the melting box (1) are fixedly connected with symmetrically arranged feed pipes (19), and valves are installed on the walls of the feed pipes (19).

4. A raw material melting device for producing plastic cups according to claim 1, characterized in that: An auxiliary block (20) is fixedly connected to the upper end of the melting box (1) on a side away from the feed port (2), and the upper end of the auxiliary block (20) is fixedly connected to the lower end of the transport cylinder (11).

5. A raw material melting device for producing plastic cups according to claim 1, characterized in that: A plurality of supporting legs (21) arranged in a ring array are fixedly connected to the bottom end of the melting box (1).

6. A raw material melting device for producing plastic cups according to claim 1, characterized in that: The feed port (2) is located directly below the opening of the transport cylinder (11).

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