CN219073470U - Plastic raw material heating device of plastic spraying machine - Google Patents

Abstract

The utility model provides a plastic raw material heating device for a plastic spraying machine, which comprises a casing and a feed box fixedly connected with the casing; a heating cylinder is fixedly installed in the inner cavity of the casing horizontally. The plastic raw material heating device of the spray molding machine, when the material is poured into the feed box, the material will agglomerate after being damp, so when the material reaches the sieving net, the sieving net can filter the material. Start the air intake fan and the upper heating wire, so that the airflow is heated and blown into the inner cavity of the feed box to dry and heat the material at the sieve net, so that the material is dried, and then the crushing shaft rotates to crush the agglomerated material Broken, let it dry and disperse, and fall through the sieve net into the inner cavity of the heating cylinder for subsequent heating and transportation, avoiding the damp and agglomerated materials from entering the interior of the heating cylinder, causing the raw materials to be heated in the inner cavity of the heating cylinder , The problem of uneven heating of materials.

Description

A plastic raw material heating device for a plastic spraying machine

technical field

The utility model belongs to the technical field of plastic spraying machines, in particular to a heating device for plastic raw materials of a plastic spraying machine.

Background technique

Plastic spraying machine is an industrial equipment used for surface treatment of objects. It can spray and absorb powdery coatings containing epoxy resin, polyester resin (plastic) and other materials onto objects. The sprayed objects enter the solidification furnace Internal curing to obtain a complete coating to play a decorative, anti-corrosion and other functions.

In order to improve the adhesion of plastic powder, it is usually necessary to heat the plastic material through an electric heater first, and then transport the raw material heated by the electric heater to the interior of the spray molding machine for use, but the raw material will inevitably be affected by moisture during storage and transportation. After the raw material is heated, the agglomerated material will be heated unevenly, and the water vapor will cause air bubbles inside the material. When the heated raw material enters the spray machine for spraying, it will cause defects in the sprayed product, resulting in product failure. quality is affected.

Utility model content

In order to solve the above problems, the utility model provides a plastic raw material heating device for a plastic spraying machine, which includes a casing and a feed box fixedly connected to the casing; a heating cylinder is fixedly installed in the inner cavity of the casing , the inner cavity of the heating cylinder is provided with a screw rod, and the surface of the heating cylinder is wound with a lower heating wire; the bottom of the feeding box is provided with a feeding cavity connected with the inner cavity of the heating cylinder, so One side of the feed box is laterally fixed with an air intake cylinder, the interior of the air intake cylinder is provided with an upper heating wire, the left end of the inner chamber of the air intake cylinder is provided with an air intake fan, and the right end of the inner cavity of the air intake cylinder is provided with a A ventilation hole communicated with the feed box, the inside of the ventilation hole is vertically fixed with a first filter screen; the inner chamber of the feed box is fixed with a screen horizontally, and the A crushing shaft is rotatably arranged in the inner chamber and on the top of the screen mesh.

Preferably, an air suction box is fixedly installed on the front of the feeding box, and a dust removal box is fixedly installed on the front of the casing at a corresponding position in the feeding chamber.

Preferably, the inner wall of the suction box is provided with a suction port communicating with the inner cavity of the feed box, and the inner cavity of the suction port is fixedly installed with a second filter screen.

Preferably, the inner wall of the dust removal box is provided with an exhaust port communicating with the inner cavity of the feeding chamber, and a third filter screen is fixedly installed in the interior of the exhaust port laterally.

Preferably, suction pumps are fixedly installed on both sides of the front of the casing, and the air inlet of the suction pump communicates with the inner cavity of the suction box.

Preferably, the air outlet of the pump communicates with the inner cavity of the dust removal box, and a switch door is provided on the front of the dust removal box.

Preferably, a sealing door is provided on the surface of the air inlet tube and at the position of the upper heating wire.

Beneficial effect

Compared with the prior art, the beneficial effect of the utility model is: the plastic raw material heating device of a plastic spraying machine of the utility model, when the material is poured into the feeding box, the material will agglomerate after being damp, so When the material reaches the screening net, the screening net can filter the material, and at the same time start the intake fan and the upper heating wire, so that the airflow is heated and blown into the inner cavity of the feeding box to dry the material at the screening net. Dry heating makes the material dry, and then the crushing shaft rotates to crush the agglomerated material, make it dry and disperse, and fall through the sieving net into the inner cavity of the heating cylinder for subsequent heating and transportation, avoiding moisture The agglomerated material enters the interior of the heating cylinder, causing the material to be heated unevenly after the heating cylinder inner cavity is heated, and there are air bubbles inside the material, which will cause defects in the sprayed product when the plastic spraying machine is spraying The problem.

Description of drawings

Fig. 1 is the structure front view sectional schematic diagram of the present utility model;

Fig. 2 is a schematic side view sectional view of the structure of the screen mesh and the crushing shaft of the present invention;

Fig. 3 is a front view cross-sectional schematic diagram of the structure of the air extraction box and the dust removal box of the utility model.

In the figure: 1, the casing; 2, the feeding box; 3, the suction port; 4, the crushing shaft; 5, the suction box; 6, the exhaust port; 7, the heating cylinder; 8, the feeding cavity; Gas cylinder; 10. Air vent; 11. Dust removal box; 12. Upper heating wire; 13. Screening net; 14. Pump.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a plastic raw material heating device for a plastic spraying machine, including a casing 1 and a feed box 2 fixedly connected to the casing 1; the inner cavity of the casing 1 A heating cylinder 7 is fixedly installed laterally, the inner cavity of the heating cylinder 7 is provided with a screw rod, and the surface of the heating cylinder 7 is wound with a lower heating wire.

One side of the casing 1 is fixedly installed with a drive motor that drives the screw rod to rotate

The material of the heating cylinder 7 is a heat-conducting metal material.

When the material enters the interior of the heating cylinder 7, start the lower heating wire to heat the heating cylinder 7, and then start the drive motor to drive the screw to rotate while the material in the inner cavity of the heating cylinder 7 is heated, so that the material is stirred and heated evenly .

The bottom of the feed box 2 is provided with a feed chamber 8 communicating with the inner cavity of the heating cylinder 7, and one side of the feed box 2 is laterally fixed with an air intake cylinder 9, and the inside of the air intake cylinder 9 is provided with an upper heating wire 12. The left end of air cylinder 9 inner chambers is provided with intake fan, and the right end of air inlet cylinder 9 inner chambers is provided with the ventilation hole 10 that is communicated with feeding box 2, and the inside of ventilation hole 10 is vertically fixedly installed with the first filter screen.

Start the intake fan and the upper heating wire 12, so that when the air intake fan airflow blows on the upper heating wire 12, the upper heating wire 12 heats the airflow, and then the heated airflow enters the inner cavity of the feed box 2, and then the material is poured Into the inner cavity of the feed box 2, so that the hot air heats the damp material, and the dried and non-caking material can enter the inner cavity of the heating cylinder 7 through the screen 13.

The inner cavity of the feed box 2 is fixedly installed with a screen 13 horizontally, and the inner cavity of the feed box 2 is rotatably arranged on the top of the screen 13 with a crushing shaft 4 horizontally.

In this embodiment, the agglomerated materials can be broken up by the rotation of the crushing shaft 4 , so that the materials can pass through the screen 13 and fall into the heating cylinder 7 .

One side of the feed box 2 is fixedly installed with a servo motor that drives the crushing shaft 4 to rotate

Further, the front of the feed box 2 is fixedly equipped with an air extraction box 5, and the front of the casing 1 is fixedly installed with a dust removal box 11 at the corresponding position of the lower material chamber 8, and the inner wall of the air extraction box 5 is provided with an air extraction box 5 that is connected with the feed box. The two inner cavities are connected to each other through an air suction port 3, and the inner cavity of the air suction port 3 is fixedly equipped with a second filter screen.

The second filter screen can prevent the material from entering the inner cavity of the air extraction box 5 through the air suction port 3 and does not affect the air flow entering the inner cavity of the air extraction box 5 .

The inner wall of the dust removal box 11 is provided with an exhaust port 6 communicating with the inner cavity of the feeding chamber 8, and a third filter screen is fixedly installed in the interior of the exhaust port 6 laterally.

Both sides of the front of the casing 1 are fixedly equipped with suction pumps 14, the air inlet of the suction pump 14 communicates with the inner cavity of the suction box 5, and the air outlet of the suction pump 14 communicates with the inner cavity of the dust removal box 11. The front of case 11 is provided with switch door.

In this embodiment, the suction pump 14 is started, so that the suction pump 14 draws out the other parts of the inner cavity of the feed box 2 through the suction box 5 and the suction port 3, so that the dust generated when the surface of the material is dried enters the dust removal box with the airflow 11, and then pass through the exhaust port 3 and the exhaust port 6, so that the hot air passes through the exhaust port 6 to remove dust and then enters the bottom of the inner cavity of the feeding chamber 8, so that the hot air moves upward through the screen 13 to process the material. Auxiliary drying enables the material to be dedusted while drying, preventing dust from flying and affecting the nearby working environment.

Further, a sealing door is provided on the surface of the air inlet tube 9 and at the position of the upper heating wire 12 .

In this embodiment, the dust filtered through the air hole 10 can be cleaned through the sealed door.

The working principle and use process of the utility model: after the utility model is installed, when the material is poured into the feed box 2, the material will agglomerate after being damp, so when the material reaches the screen 13, the screen 13 can filter the material, start the intake fan and the upper heating wire 12 at the same time, make the air flow heated and blow into the inner cavity of the feed box 2 to dry and heat the material at the screen 13, so that the material can be dried , and then the crushing shaft 4 rotates to crush the agglomerated material, make it dry and disperse, and drop through the screen 13 into the inner cavity of the heating cylinder 7 for subsequent heating and transportation. When the material enters the heating cylinder 7 After the inside, start the lower heating wire to heat the heating cylinder 7, and then start the drive motor to drive the screw to rotate while the material in the inner cavity of the heating cylinder 7 is heated, so that the material is stirred and heated evenly, and then it is used for the plastic spraying machine. Just use it.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A plastic raw material heating device of a plastic spraying machine is characterized in that: comprises a shell (1) and a feeding box (2) fixedly connected with the shell (1);

a heating cylinder (7) is transversely and fixedly arranged in the inner cavity of the shell (1), a screw rod is arranged in the inner cavity of the heating cylinder (7), and a lower heating wire is wound on the surface of the heating cylinder (7);

a blanking cavity (8) communicated with the inner cavity of the heating cylinder (7) is formed in the bottom of the feeding box (2), an air inlet cylinder (9) is transversely and fixedly arranged on one side of the feeding box (2), an upper heating wire (12) is arranged in the air inlet cylinder (9), an air inlet fan is arranged at the left end of the inner cavity of the air inlet cylinder (9), an air vent (10) communicated with the feeding box (2) is formed in the right end of the inner cavity of the air inlet cylinder (9), and a first filter screen is vertically and fixedly arranged in the air vent (10);

the screening net (13) is transversely and fixedly arranged in the inner cavity of the feeding box (2), and the crushing shaft (4) is rotatably and transversely arranged at the top of the screening net (13) in the inner cavity of the feeding box (2).

2. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 1, wherein: the front of the feeding box (2) is fixedly provided with an extraction box (5), and the front of the machine shell (1) is fixedly provided with a dust removal box (11) at the corresponding position of the blanking cavity (8).

3. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 2, wherein: an extraction opening (3) communicated with the inner cavity of the feeding box (2) is formed in the inner wall of the extraction box (5), and a second filter screen is fixedly arranged in the inner cavity of the extraction opening (3).

4. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 2, wherein: an exhaust port (6) communicated with the inner cavity of the blanking cavity (8) is formed in the inner wall of the dust removal box (11), and a third filter screen is transversely and fixedly arranged in the exhaust port (6).

5. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 4, wherein: the suction pump (14) is fixedly arranged on two sides of the front face of the shell (1), and an air inlet of the suction pump (14) is communicated with an inner cavity of the suction box (5).

6. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 5, wherein: the air outlet of the pump (14) is communicated with the inner cavity of the dust removal box (11), and the front surface of the dust removal box (11) is provided with a switch door.

7. A plastic raw material heating apparatus of a plastic spraying machine as claimed in claim 1, wherein: the surface of the air inlet cylinder (9) and the position of the upper heating wire (12) are provided with sealing doors.

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