Raw material hot melting device for flowerpot production

Abstract

The utility model relates to the field of flowerpot production equipment, in particular to a raw material hot melting device for flowerpot production, which comprises a base, a heat preservation shell is arranged on the base, an extrusion barrel is arranged in the heat preservation shell, an outlet of the extrusion barrel extends to the outer side of the heat preservation shell, and a feeding barrel extending to the upper part of the heat preservation shell is vertically arranged at the upper end of the extrusion barrel. A driving shaft extending out of the heat preservation shell is rotationally arranged at the end, away from the outlet, of the extrusion barrel, the driving shaft on the inner side of the extrusion barrel is connected with a first spiral blade, a first driving mechanism connected with the driving shaft is arranged on the outer side of the heat preservation shell, and a plurality of mounting barrels are arranged between the heat preservation shell and the extrusion barrel and internally provided with electric heating pipes. And heat-conducting oil is filled in the heat-insulating shell. The utility model has the advantages that the heat loss is reduced, and the energy is saved.

Description

Technical Field

[0001] This utility model relates to the field of flower pot production equipment, and in particular to a raw material hot-melting device for flower pot production. Background Technology

[0002] Plastic flower pots are a common type of flower pot. Plastic has good plasticity and toughness, better impact resistance than ceramic flower pots, and better corrosion resistance and lower cost than metal flower pots. In the production process of plastic flower pots, granular plastic raw materials are colored, heated and melted, and then transported to a molding die through an extruder. After molding and cooling, the flower pot is obtained. In this process, the plastic granular raw materials are often heated by adding an electric heating tube to the outside of the extruder. This heating method leads to a large amount of heat loss and energy waste. Therefore, it is particularly necessary to develop a hot-melt device for raw materials in flower pot production that reduces heat loss and saves energy. Summary of the Invention

[0003] The purpose of this utility model is to provide a raw material hot-melting device for flowerpot production, which has the advantages of reducing heat loss and saving energy.

[0004] The technical solution adopted is as follows:

[0005] A hot-melting device for raw materials used in flowerpot production includes a base, an insulating shell on the base, an extrusion cylinder inside the insulating shell, an outlet of the extrusion cylinder extending to the outside of the insulating shell, a feed cylinder extending vertically to the top of the insulating shell at the upper end of the extrusion cylinder, a drive shaft extending to the outside of the insulating shell rotatably connected to the end of the extrusion cylinder away from the outlet, a first helical blade connected to the drive shaft inside the extrusion cylinder, a first drive mechanism connected to the drive shaft on the outside of the insulating shell, a plurality of mounting cylinders between the insulating shell and the extrusion cylinder, each mounting cylinder containing an electric heating tube, and heat-conducting oil filled inside the insulating shell.

[0006] Preferably, the outer side of the mounting cylinder is provided with a plurality of first heat exchange fins at uniform intervals.

[0007] Preferably, the outer side of the extrusion cylinder is provided with a plurality of second heat exchange fins.

[0008] Preferably, a propeller blade is provided on the drive shaft between the extrusion cylinder and the heat insulation shell.

[0009] Preferably, a temperature sensor is installed inside the heat-insulating outer shell.

[0010] Preferably, the upper end cover of the feed cylinder is provided with an end cover, a second spiral blade is vertically rotatably arranged inside the feed cylinder, a feed pipe is provided on the side of the feed cylinder, a second drive mechanism is provided at the upper end of the end cover, and the second drive mechanism is provided with a transmission shaft connected to the second spiral blade.

[0011] Compared to existing technologies, the advantages are:

[0012] 1. This utility model uses an electric heating tube to heat the heat-conducting oil, and uses the heat-conducting oil to heat the plastic granule raw material in the extrusion cylinder. During the heating process, the heat-insulating shell reduces heat loss, thereby reducing the power of the electric heating tube and achieving the purpose of energy saving. In addition, it avoids burns to workers caused by high temperature during operation.

[0013] 2. In this utility model, a propeller blade is provided on the drive shaft to stir the heat transfer oil, so that the temperature of the heat transfer oil in all parts of the shell is uniform. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a raw material hot-melting device for flowerpot production according to this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of a raw material hot-melting device for flowerpot production according to this utility model.

[0016] In the diagram: 1. Base; 2. Insulated outer shell; 3. Extrusion cylinder; 4. Feed cylinder; 5. Drive shaft; 6. First helical blade; 7. First drive mechanism; 8. Propeller blade; 9. End cap; 10. Second helical blade; 11. Feed pipe; 12. Second drive mechanism; 13. Transmission shaft; 14. Mounting cylinder; 16. Heat transfer oil; 17. First heat exchange fin; 18. Second heat exchange fin. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 2 As shown:

[0018] Example 1: A hot-melting device for raw materials used in flowerpot production includes a base 1, an insulating shell 2 on the base 1, an extrusion cylinder 3 inside the insulating shell 2, the extrusion cylinder 3 extending horizontally, the outlet of the extrusion cylinder 3 extending to the outside of the insulating shell 2, the extrusion cylinder 3 being sealed to the insulating shell 2, and a feed cylinder 4 extending above the insulating shell 2 being vertically arranged at the upper end of the extrusion cylinder 3, the outside of the feed cylinder 4 being sealed to the insulating shell 2.

[0019] A drive shaft 5 is rotatably provided at the end of the extrusion cylinder 3 away from the outlet, extending to the outside of the insulation shell 2. The drive shaft 5 inside the extrusion cylinder 3 is connected to a first helical blade 6. A first drive mechanism 7 connected to the drive shaft 5 is provided on the outside of the insulation shell 2. The drive shaft 5 is rotatably and sealedly connected to both the extrusion cylinder 3 and the insulation shell 2. The first drive mechanism 7 drives the first helical blade 6 to rotate through the drive shaft 5, pushing the molten plastic raw material inside the extrusion cylinder 3 toward the outlet of the extrusion cylinder 3.

[0020] Multiple mounting cylinders 14 are provided between the insulation shell 2 and the extrusion cylinder 3. Each mounting cylinder 14 is equipped with an electric heating tube, which is connected to a power control module. The insulation shell 2 is filled with heat-conducting oil 16, which is existing technology and will not be described in detail here. The electric heating tube is also existing technology and will not be described in detail here. The electric heating tube heats the heat-conducting oil 16. The insulation shell 2 locks most of the heat inside the insulation shell 2, reducing heat loss and thus reducing the power of the electric heating tube, achieving the purpose of energy saving.

[0021] Example 2: A hot-melting device for raw materials used in flowerpot production includes a base 1, an insulating shell 2 on the base 1, an extrusion cylinder 3 inside the insulating shell 2, the extrusion cylinder 3 extending horizontally, the outlet of the extrusion cylinder 3 extending to the outside of the insulating shell 2, the extrusion cylinder 3 being sealed to the insulating shell 2, and a feed cylinder 4 extending above the insulating shell 2 being vertically arranged at the upper end of the extrusion cylinder 3, the outside of the feed cylinder 4 being sealed to the insulating shell 2.

[0022] A drive shaft 5 extending to the outside of the insulation shell 2 is rotatably provided at the end of the extrusion cylinder 3 away from the outlet. The drive shaft 5 inside the extrusion cylinder 3 is connected to a first helical blade 6. A first drive mechanism 7 connected to the drive shaft 5 is provided on the outside of the insulation shell 2. The drive shaft 5 is rotatably and sealedly connected to both the extrusion cylinder 3 and the insulation shell 2. The first drive mechanism 7 drives the first helical blade 6 to rotate through the drive shaft 5, pushing the molten plastic raw material in the extrusion cylinder 3 toward the outlet of the extrusion cylinder 3. A propeller blade 8 is provided on the drive shaft 5 between the extrusion cylinder 3 and the insulation shell 2.

[0023] The feed cylinder 4 has an end cap 9 on its upper end. A second spiral blade 10 is vertically rotatably arranged inside the feed cylinder 4. A feed pipe 11 is arranged on the side of the feed cylinder 4. A second drive mechanism 12 is arranged on the upper end of the end cap 9. The second drive mechanism 12 is equipped with a transmission shaft 13 connected to the second spiral blade 10. The second drive mechanism 12 and the transmission shaft 13 drive the second spiral blade 10 to rotate, controlling the plastic raw material to enter the extrusion cylinder 3 in an orderly manner.

[0024] Multiple mounting cylinders 14 are provided between the heat insulation shell 2 and the extrusion cylinder 3. Each mounting cylinder 14 is equipped with an electric heating tube, which is connected to a power control module. The heat insulation shell 2 is filled with heat transfer oil 16, which is existing technology and will not be described in detail here. The electric heating tube is also existing technology and will not be described in detail here. The electric heating tube heats the heat transfer oil 16. Multiple first heat exchange fins 17 are evenly spaced on the outer side of the mounting cylinder 14. The first heat exchange fins 17 increase the heat exchange area with the heat transfer oil 16 and improve the heat exchange efficiency. Multiple second heat exchange fins 18 are provided on the outer side of the extrusion cylinder 3. The second heat exchange fins 18 increase the heat exchange area between the heat transfer oil 16 and the extrusion cylinder 3 and improve the heat exchange efficiency.

[0025] A propeller blade 8 is installed on the drive shaft 5 between the extrusion cylinder 3 and the insulation shell 2. The propeller blade 8 rotates with the drive shaft 5, pushing the heat transfer oil 16 inside the insulation shell 2 to move and make the temperature of the heat transfer oil 16 uniform. A temperature sensor is installed inside the insulation shell 2 to monitor the temperature of the heat transfer oil 16 inside the insulation shell 2. A main controller is installed on the base 1. The main controller is connected to both the temperature sensor and the power control module via a data cable. The main controller sends a signal to the power control module based on the information data from the temperature sensor to adjust the power of the heating element.

[0026] The specific working process is as follows: The electric heating element is activated to heat the heat transfer oil 16. Simultaneously, the first drive mechanism 7 is activated, using the drive shaft 5 to drive the propeller blade 8 to rotate, propelling the heat transfer oil 16 forward. The main controller sends a signal to the power control module based on the temperature sensor data, controlling the temperature of the heat transfer oil 16 at the predetermined target temperature. Then, granular raw materials are fed into the feed pipe 11, and the second drive mechanism 12 is activated to orderly convey the granular raw materials into the extrusion cylinder 3. After the granular raw materials are heated to a molten state, they are extruded from the outlet and conveyed to the mold for making plastic flower pots. During the heating process, the heat insulation shell 2 seals most of the heat inside, reducing heat loss and thus reducing the power consumption of the electric heating element, achieving energy saving.

[0027] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A raw material hot-melting device for flowerpot production, characterized in that: Includes a base (1), an insulation shell (2) is provided on the base (1), an extrusion cylinder (3) is provided inside the insulation shell (2), the outlet of the extrusion cylinder (3) extends to the outside of the insulation shell (2), a feed cylinder (4) is vertically provided at the upper end of the extrusion cylinder (3) extending to the top of the insulation shell (2), a drive shaft (5) extending to the outside of the insulation shell (2) is rotatably provided at the end of the extrusion cylinder (3) away from the outlet, the drive shaft (5) inside the extrusion cylinder (3) is connected to a first spiral blade (6), a first drive mechanism (7) connected to the drive shaft (5) is provided on the outside of the insulation shell (2), a plurality of mounting cylinders (14) are provided between the insulation shell (2) and the extrusion cylinder (3), each mounting cylinder (14) is provided with an electric heating tube, and the insulation shell (2) is filled with heat transfer oil (16).

2. The raw material hot-melting device for flowerpot production as described in claim 1, characterized in that: The outer side of the mounting cylinder (14) is provided with a plurality of first heat exchange fins (17) at uniform intervals.

3. The raw material hot-melting device for flowerpot production as described in claim 1, characterized in that: The outer side of the extrusion cylinder (3) is provided with a plurality of second heat exchange fins (18).

4. The raw material hot-melting device for flowerpot production as described in claim 1, characterized in that: A propeller blade (8) is provided on the drive shaft (5) between the extrusion cylinder (3) and the heat insulation shell (2).

5. The raw material hot-melting device for flowerpot production as described in claim 1, characterized in that: A temperature sensor is installed inside the heat-insulating outer shell (2).

6. The raw material hot-melting device for flowerpot production as described in claim 1, characterized in that: The feed cylinder (4) has an end cap (9) on its upper end cap (9), a second spiral blade (10) is vertically rotatably arranged inside the feed cylinder (4), a feed pipe (11) is arranged on the side of the feed cylinder (4), a second drive mechanism (12) is arranged on the upper end of the end cap (9), and a drive shaft (13) connected to the second spiral blade (10) is arranged on the second drive mechanism (12).

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