Raw material melting equipment

Abstract

The utility model discloses raw material melting equipment which comprises a melting bin, an annular assembly groove is formed in the outer wall of the melting bin, a plurality of electric heating plates are fixedly connected in the annular assembly groove, a mixing mechanism is arranged in the melting bin, and a round hole screen plate is fixedly connected to the inner wall of the melting bin. The top of the melting bin is fixedly connected with a material bin. Through the arrangement of the round hole net plate, the stock bin, the discharging pipe, the servo motor, the driving shaft, the inverted-cone-shaped plate, the collecting frame, the air pump, the air inlet pipe, the U-shaped piece, the baffle and the fine hole filter screen, the inverted-cone-shaped plate rotates, plastic particles are thrown out through centrifugal force, the plastic particles are dispersed, impurities and dust in the plastic particles are conveniently sucked away, and the service life of the plastic particles is prolonged. And interception is carried out under the action of the fine-hole filter screen, and the U-shaped piece and the baffle prevent impurities and dust from flowing back into the melting bin, so that a better collection effect is formed, and the maintenance cost of the filter screen in the extruder head is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product processing, in particular to a raw material melting device. Background Art

[0002] Plastic products are a general term for products made from plastic as the main raw material, including products made from injection molding, vacuum forming, and other processes. After the plastic is melted, the viscosity will decrease, making it easier to perform injection molding or extrusion molding, which can make the product more uniform, with a smoother surface and clearer edges and corners, thereby improving the quality of the product.

[0003] When the above device is actually used, since some impure substances or impurities may be mixed into the plastic particles before melting, after the plastic particles are directly melted through the feed pipe, it is easier to clog the filter screen in the extruder head (preventing impurities in the melt from passing through) when passing through the extruder head subsequently, which may affect the strength and appearance of the product, and the filter screen on the extruder head needs to be cleaned more frequently. Utility Model Content

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

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

[0006] A raw material melting equipment comprises a melting bin, the outer wall of which is provided with an annular assembly groove, a plurality of electric heating plates are fixedly connected inside the annular assembly groove, an inner frame is fixedly connected inside the melting bin, a mixing mechanism is arranged inside the melting bin, a round hole mesh plate is fixedly connected to the inner wall of the melting bin, a material bin is fixedly connected to the top of the melting bin, a feeding pipe is fixedly communicated with the bottom of the material bin, a heat dissipation frame is fixedly connected to the top of the melting bin, a servo motor is fixedly connected inside the heat dissipation frame, the bottom of the output end of the servo motor passes through the melting bin and the top of the round hole mesh plate and is fixedly connected to a drive shaft, the bottom of the drive shaft is rotatably connected to the top of the inner frame, an inverted cone plate is fixedly sleeved on the outer wall of the drive shaft, and a de-impurity mechanism is arranged on the top of the melting bin.

[0007] Preferably, the mixing mechanism includes a DC motor, the outer wall of the melting bin is fixedly connected to a device frame, the inner wall of the device frame is fixedly connected to the outer wall of the DC motor, the outer wall of the output end of the DC motor is fixedly connected to a transmission shaft, the outer wall of the inner frame is provided with a through hole, the inner wall of the through hole is rotatably connected to a vertical shaft, the top of the vertical shaft and one end of the transmission shaft are fixedly connected to bevel gears, the two bevel gears are meshingly connected, a plurality of stirring rods are fixedly connected to the outer wall of the vertical shaft, the bottom outer wall of the vertical shaft is fixedly connected to a spiral conveying blade, and the molten plastic particles are conveyed by arranging the spiral conveying blades; the bottom of the melting bin is docked to the existing extruder.

[0008] Preferably, the impurity removal mechanism includes a collecting frame, the top of the melting bin is fixedly connected to the bottom of the collecting frame, the top of the collecting frame is fixedly connected with an air pump, the bottom of the collecting frame is fixedly connected with an air inlet pipe, the top of the air inlet pipe is fixedly connected with a U-shaped part, the top of the U-shaped part is fixedly connected with a baffle, and the interior of the collecting frame is fixedly connected with a fine-pore filter. The fine-pore filter is provided to intercept impurities and large particles of dust and accumulate them in the collecting frame, and they are subsequently cleaned by opening the door on the collecting frame.

[0009] Preferably, an assembly hole is provided on the outer wall of the melting chamber, and the inner wall of the assembly hole is rotatably connected to the outer wall of the output end of the DC motor.

[0010] Preferably, a through hole is provided on the outer wall of the inner frame, and the inner wall of the through hole is rotatably connected to the outer wall of the transmission shaft, so that the two bevel gears are driven to rotate synchronously by setting the transmission shaft.

[0011] Preferably, the outer walls of the transmission shaft and the vertical shaft are fixedly sleeved with bearings, the outer rings of the bearings are fixedly connected to the inner walls of the inner frame, and the bearings are provided to assist the transmission shaft and the vertical shaft to rotate stably.

[0012] Preferably, the outer walls of the melting bin and the round hole mesh plate are both provided with mounting holes, and the inner walls of the mounting holes are fixedly connected to the outer wall of the feeding pipe.

[0013] Preferably, a connecting hole is opened on the top of the melting bin, and the inner wall of the connecting hole is fixedly connected to the outer wall of the air inlet pipe. The operation of the air pump forms a vacuum process, so that the air inlet pipe vacuums air outwards, and impurities and dust in the plastic particles are sucked into it.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] In this solution, a circular hole mesh plate, a silo, a feed pipe, a servo motor, a drive shaft, an inverted cone plate, a collection frame, an air pump, an air inlet pipe, a U-shaped piece, a baffle and a fine-pore filter are arranged. When the inverted cone plate rotates, the plastic particles are thrown outward by centrifugal force, so that the plastic particles are dispersed, and impurities and dust in the plastic particles are sucked away and intercepted by the fine-pore filter. The U-shaped piece and the baffle prevent the impurities and dust from flowing back into the melting bin, thereby forming a better collection effect and reducing the maintenance cost of the filter in the extruder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a raw material melting device proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional structure diagram of a raw material melting device proposed by the utility model;

[0019] Figure 3 A raw material melting device proposed by the utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0020] Figure 4 The utility model is a partial three-dimensional structural schematic diagram of a raw material melting device proposed by the utility model.

[0021] In the figure: 1. melting bin; 2. electric heating plate; 3. equipment frame; 4. DC motor; 5. transmission shaft; 6. inner frame; 7. vertical shaft; 8. bevel gear; 9. stirring rod; 10. spiral conveying blade; 11. round hole mesh plate; 12. silo; 13. feeding pipe; 14. heat dissipation frame; 15. servo motor; 16. driving shaft; 17. inverted cone plate; 18. collecting frame; 19. air pump; 20. air inlet pipe; 21. U-shaped part; 22. baffle; 23. fine mesh filter. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Depend on Figure 1-Figure 4 As shown, it relates to a raw material melting equipment, including a melting bin 1, an annular assembly groove is opened on the outer wall of the melting bin 1, and a plurality of electric heating plates 2 are fixedly connected inside the annular assembly groove, and plastic particles are heated and melted by the operation of the electric heating plates 2, and a round hole mesh plate 11 is fixedly connected to the inner wall of the melting bin 1, and a silo 12 is fixedly connected to the top of the melting bin 1, and a discharge pipe 13 is fixedly communicated with the bottom of the silo 12, and the outer walls of the melting bin 1 and the round hole mesh plate 11 are opened with mounting holes, and the inner wall of the mounting hole is fixedly connected to the outer wall of the discharge pipe 13, and the plastic particles enter the silo 12 through the existing conveying equipment, and the plastic particles enter the melting bin 1 through the silo 12 and the discharge pipe 13.

[0024] A heat dissipation frame 14 is fixedly connected to the top of the melting bin 1, and a servo motor 15 is fixedly connected to the inside of the heat dissipation frame 14. The bottom of the output end of the servo motor 15 passes through the melting bin 1 and the top of the round hole mesh plate 11 and is fixedly connected to a drive shaft 16. The bottom of the drive shaft 16 is rotatably connected to the top of the inner frame 6. An inverted cone plate 17 is fixedly sleeved on the outer wall of the drive shaft 16. The rotation of the drive shaft 16 drives the inverted cone plate 17 to rotate. Due to the inverted cone design of the inverted cone plate 17, the plastic particles are thrown outward by centrifugal force when the rotation speed is sufficient. There is a certain distance between the inverted cone plate 17 and the melting bin 1.

[0025] A mixing mechanism is provided inside the melting bin 1, and the mixing mechanism includes a DC motor 4. An assembly hole is provided on the outer wall of the melting bin 1, and the inner wall of the assembly hole is rotatably connected to the outer wall of the output end of the DC motor 4. The outer wall of the melting bin 1 is fixedly connected to an equipment frame 3, and the equipment frame 3 protects the DC motor 4. The inner wall of the equipment frame 3 is fixedly connected to the outer wall of the DC motor 4, and the outer wall of the output end of the DC motor 4 is fixedly connected to a transmission shaft 5.

[0026] An inner frame 6 is fixedly connected to the inside of the melting bin 1, a through hole is provided on the outer wall of the inner frame 6, the inner wall of the through hole is rotatably connected to the outer wall of the transmission shaft 5, a through hole is provided on the outer wall of the inner frame 6, the inner wall of the through hole is rotatably connected to the vertical shaft 7, the outer walls of the transmission shaft 5 and the vertical shaft 7 are fixedly sleeved with bearings, the outer rings of the bearings are fixedly connected to the inner wall of the inner frame 6, the top of the vertical shaft 7 and one end of the transmission shaft 5 are fixedly connected with a bevel gear 8, the two bevel gears 8 are meshingly connected, the operation of the DC motor 4 drives the two bevel gears 8 to rotate synchronously, thereby driving the vertical shaft 7 to rotate, and the rotation of the vertical shaft 7 drives the stirring rod 9 to rotate, so as to stir the melted particles.

[0027] A plurality of stirring rods 9 are fixedly connected to the outer wall of the vertical shaft 7 . The stirring rods 9 are in a U-shaped structure. A spiral conveying blade 10 is fixedly connected to the outer wall of the bottom of the vertical shaft 7 .

[0028] A cleaning mechanism is provided at the top of the melting bin 1, and the cleaning mechanism includes a collecting frame 18. The top of the melting bin 1 is fixedly connected to the bottom of the collecting frame 18. An air pump 19 is fixedly communicated with the top of the collecting frame 18. The operation of the air pump 19 generates negative pressure in the collecting frame 18. An air inlet pipe 20 is fixedly communicated with the bottom of the collecting frame 18. A connecting hole is opened at the top of the melting bin 1, and the inner wall of the connecting hole is fixedly connected to the outer wall of the air inlet pipe 20.

[0029] A U-shaped part 21 is fixedly connected to the top of the air inlet pipe 20, and a baffle 22 is fixedly connected to the top of the U-shaped part 21. The U-shaped part 21 supports the baffle 22. A fine-pore filter 23 is fixedly connected to the inside of the collection frame 18, and the fine-pore filter 23 intercepts impurities and large dust particles.

[0030] Working principle: When in use, plastic particles enter the silo 12 through the existing conveying equipment, and the plastic particles enter the melting bin 1 through the silo 12 and the discharge pipe 13. The servo motor 15 drives the drive shaft 16 to rotate, and the rotation of the drive shaft 16 drives the inverted cone plate 17 to rotate. Due to the inverted cone design of the inverted cone plate 17, the plastic particles are thrown outward by centrifugal force when the speed is sufficient, and hit the inner wall of the melting bin 1, forming a collision effect, so that the plastic particles can be dispersed. After the plastic particles are dispersed, under the action of the negative pressure generated by the operation of the air pump 19, fine impurities or dust enter the air inlet pipe 20 through the circular hole mesh plate 11, and then enter the collecting The plastic particles are heated and melted by the operation of the electric heating plate 2, and after melting, the DC motor 4 is driven to rotate the transmission shaft 5, and the transmission shaft 5 drives one of the bevel gears 8 to rotate, and through the meshing action, drives the other bevel gear 8 to rotate, so that the vertical shaft 7 is rotated, and the rotation of the vertical shaft 7 drives the stirring rod 9 to rotate, so as to stir the molten plastic particles, and the rotation of the vertical shaft 7 drives the spiral conveying blade 10 to rotate, and the molten plastic particles are transported downward so that they enter the existing extruder.

[0031] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part all adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0032] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A raw material melting device, comprising a melting chamber (1), characterized in that: The outer wall of the melting bin (1) is provided with an annular assembly groove, a plurality of electric heating plates (2) are fixedly connected inside the annular assembly groove, an inner frame (6) is fixedly connected inside the melting bin (1), a mixing mechanism is provided inside the melting bin (1), a round hole mesh plate (11) is fixedly connected to the inner wall of the melting bin (1), a material bin (12) is fixedly connected to the top of the melting bin (1), a feeding pipe (13) is fixedly communicated with the bottom of the material bin (12), a heat dissipation frame (14) is fixedly connected to the top of the melting bin (1), a servo motor (15) is fixedly connected inside the heat dissipation frame (14), the bottom of the output end of the servo motor (15) passes through the melting bin (1) and the top of the round hole mesh plate (11) and is fixedly connected to a driving shaft (16), the bottom of the driving shaft (16) is rotatably connected to the top of the inner frame (6), an inverted cone plate (17) is fixedly sleeved on the outer wall of the driving shaft (16), and a de-impurity mechanism is provided on the top of the melting bin (1).

2. A raw material melting device according to claim 1, characterized in that: The mixing mechanism comprises a DC motor (4); the outer wall of the melting chamber (1) is fixedly connected to a device frame (3); the inner wall of the device frame (3) is fixedly connected to the outer wall of the DC motor (4); the outer wall of the output end of the DC motor (4) is fixedly connected to a transmission shaft (5); the outer wall of the inner frame (6) is provided with a through hole; the inner wall of the through hole is rotatably connected to a vertical shaft (7); the top of the vertical shaft (7) and one end of the transmission shaft (5) are fixedly connected to a bevel gear (8); the two bevel gears (8) are meshingly connected; the outer wall of the vertical shaft (7) is fixedly connected to a plurality of stirring rods (9); and the bottom outer wall of the vertical shaft (7) is fixedly connected to a spiral conveying blade (10).

3. A raw material melting device according to claim 1, characterized in that: The impurity removal mechanism comprises a collecting frame (18), the top of the melting bin (1) is fixedly connected to the bottom of the collecting frame (18), the top of the collecting frame (18) is fixedly connected to an air pump (19), the bottom of the collecting frame (18) is fixedly connected to an air intake pipe (20), the top of the air intake pipe (20) is fixedly connected to a U-shaped piece (21), the top of the U-shaped piece (21) is fixedly connected to a baffle (22), and the interior of the collecting frame (18) is fixedly connected to a fine-pore filter (23).

4. A raw material melting device according to claim 2, characterized in that: An assembly hole is provided on the outer wall of the melting chamber (1), and the inner wall of the assembly hole is rotatably connected to the outer wall of the output end of the DC motor (4).

5. A raw material melting device according to claim 2, characterized in that: The outer wall of the inner frame (6) is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the transmission shaft (5).

6. A raw material melting device according to claim 2, characterized in that: The outer walls of the transmission shaft (5) and the vertical shaft (7) are both fixedly sleeved with bearings, and the outer rings of the bearings are fixedly connected to the inner wall of the inner frame (6).

7. A raw material melting device according to claim 1, characterized in that: The outer walls of the melting bin (1) and the circular hole mesh plate (11) are both provided with mounting holes, and the inner walls of the mounting holes are fixedly connected to the outer wall of the feeding pipe (13).

8. A raw material melting device according to claim 3, characterized in that: A connection hole is provided on the top of the melting bin (1), and the inner wall of the connection hole is fixedly connected to the outer wall of the air inlet pipe (20).

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