A raw material stirring device for a coating process

Abstract

The utility model relates to a membrane material stirring technical field, especially a kind of raw material stirring device for membrane processing. Its technical scheme includes: first tank, the first tank is equipped with cover plate, the cover plate is equipped with first drive motor, the output shaft of first drive motor is equipped with stirring vane by pivot, the stirring vane is arranged in first tank, the outer surface of first tank is welded with frame, the outer surface side end of first tank is equipped with heating box, the heating box is equipped with first air pump, filter screen and electric heating tube are installed in the heating box;The cover plate is equipped with second air pump and second tank, and the outer surface of second tank is equipped with coil pipe. The utility model satisfies membrane raw material stirring mixing, can be heated and dried when mixing, avoid the quality after processing of raw material affected by damp, and the waste heat generated by drying can be recycled.

Description

Technical Field

[0001] This utility model relates to the field of coating material stirring technology, specifically to a material stirring device for coating processing. Background Technology

[0002] As a composite material, coated paper is formed by coating plastic particles onto the surface of paper using a casting machine. In the production of food-grade coated paper bags, the choice of materials must be closely combined with the characteristics of the food and packaging requirements. For example, using composite materials such as polylactic acid (polylactide), polyethylene, and polypropylene can effectively improve the moisture resistance and freshness preservation of the packaging.

[0003] The specific processing flow is as follows: First, granules or powders of materials such as polylactic acid (polylactide), polyethylene, and polypropylene are uniformly mixed with plasticizers, stabilizers, and other auxiliary materials. Then, the mixture is melted by hot melting and subsequently coated onto the surface of paper using a casting machine. In the process of mixing these coating raw materials, the mixing device is an essential and crucial piece of equipment.

[0004] A search revealed that patent CN212576067U discloses a mixing machine for coating raw materials. While this device facilitates the handling of processed raw materials, saving time and labor, current mixing devices only perform simple mixing and lack the function of auxiliary drying during the mixing process. Since raw materials are highly susceptible to moisture absorption during storage or transportation, directly mixing damp raw materials for production will adversely affect the processing quality of coated paper products, thus impacting the performance of the final product. Therefore, existing mixing devices still have room for improvement in terms of functionality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a raw material stirring device for coating processing, which solves the problems mentioned in the background art.

[0006] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0007] A raw material mixing device for coating processing includes a first tank body, a cover plate mounted on the first tank body, a first drive motor mounted on the cover plate, and stirring blades mounted on the output shaft of the first drive motor via a rotating shaft. The stirring blades are disposed within the first tank body.

[0008] A frame is welded to the outer surface of the first tank, a heating box is installed on the side of the outer surface of the first tank, a first air pump is installed on the heating box, and a filter screen and an electric heating tube are installed inside the heating box;

[0009] A second air pump and a second tank are installed on the cover plate, and a coil is installed on the outer surface of the second tank.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, a feed pipe is installed on the cover plate, and a discharge pipe is installed on the bottom end face of the first tank. A valve is installed on the discharge pipe, and both the discharge pipe and the feed pipe are connected to the first tank.

[0012] The beneficial effects of adopting the above-mentioned further solutions are:

[0013] The feed pipe facilitates the addition of raw materials to the first tank; the discharge pipe, equipped with a valve, controls the discharge of the well-mixed raw materials.

[0014] Furthermore, an air inlet pipe is installed on the bottom surface of the heating box, and the air inlet pipe is connected to the heating box.

[0015] The beneficial effects of adopting the above-mentioned further solutions are:

[0016] The air intake pipe provides a stable air input to the heating chamber, ensuring that the heating elements have enough air to heat the materials. Combined with the filter inside the heating chamber, it can filter out dust, particles and other impurities in the air, preventing these impurities from entering the first tank with the hot air and contaminating the raw materials.

[0017] Furthermore, the first air pump is connected to an air extraction pipe and an air exhaust pipe. The end of the air extraction pipe facing away from the first air pump is installed inside the heating box, and the end of the air exhaust pipe facing away from the first air pump passes through the cover plate and is installed inside the first tank.

[0018] The beneficial effects of adopting the above-mentioned further solutions are:

[0019] The first air pump draws out the air heated by the electric heating tube in the heating box through the air extraction pipe, and then sends it into the first tank through the exhaust pipe, allowing the hot air to come into direct contact with the raw materials inside the tank.

[0020] Furthermore, the second air pump is connected to an extraction pipe and an exhaust pipe. The end of the extraction pipe facing away from the second air pump passes through the cover plate and is installed inside the first tank. The end of the exhaust pipe facing away from the second air pump is installed inside the coil.

[0021] The beneficial effects of adopting the above-mentioned further solutions are:

[0022] The second air pump extracts the gas containing residual heat generated during the drying of the raw materials in the first tank through the extraction pipe, and then sends it into the coil outside the second tank through the discharge pipe. This residual heat can preheat the raw materials in the second tank. In this way, the heat is fully utilized, reducing the energy consumption required to heat the raw materials in the second tank separately, thus achieving energy saving.

[0023] Furthermore, a filling pipe is installed on the top surface of the second tank, and a connecting pipe is installed on the bottom surface of the second tank. The bottom surface of the connecting pipe penetrates the cover plate and is installed inside the first tank. A valve is installed on the connecting pipe.

[0024] The beneficial effects of adopting the above-mentioned further solutions are:

[0025] The filling pipe facilitates the addition of raw materials to be processed into the second tank, while the connecting pipe can transport the preheated raw materials in the second tank to the first tank for further stirring, realizing the continuous processing of raw materials from preheating to stirring; the valve on the connecting pipe can control the timing and speed of raw material transportation, and can be adjusted according to the preheating status in the first tank to ensure that the entire processing process proceeds in an orderly manner.

[0026] Furthermore, a second drive motor is installed on the second tank body, and a stirring rod is installed on the output shaft of the second drive motor via a connecting shaft, the stirring rod being disposed inside the second tank body.

[0027] The beneficial effects of adopting the above-mentioned further solutions are:

[0028] The second drive motor drives the connecting shaft and stirring rod to rotate inside the second tank, which can stir the raw materials inside the tank. This allows the raw materials to be constantly turned over during the preheating process, so that each part of the raw materials can fully contact the tank, resulting in more uniform heating and better preheating effect. At the same time, stirring can also break up any clumps that may form in the raw materials, making it easier for the raw materials that enter the first tank to mix with other materials.

[0029] This invention provides a raw material mixing device for coating processing. It has the following beneficial effects:

[0030] The first drive motor rotates the stirring blades within the first tank, thoroughly mixing the raw materials and ensuring a uniform texture that meets the mixing requirements of the coating process. Simultaneously, the stirring rods within the second tank, driven by the second drive motor, stir the preheated raw materials, preventing clumping and laying the foundation for subsequent deep mixing in the first tank, further improving the overall mixing quality.

[0031] The electric heating element inside the heating chamber heats the air, which is then pumped into the first tank by a first air pump. This directly heats the raw materials inside the tank, and the stirring blades ensure even heating, preventing localized overheating or underheating. This heating method is gentle and controllable, allowing the heating temperature to be adjusted according to the characteristics of the coating raw materials. This ensures that the raw materials are stirred within a suitable temperature environment, improving their processing performance and preventing moisture absorption from affecting processing quality.

[0032] The residual heat gas generated during the drying of raw materials in the first tank is drawn into the coil of the second tank by the second air pump. This residual heat is used to preheat the raw materials in the second tank, reducing the consumption of additional heating energy. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a side view of the present invention;

[0036] Figure 2 This is a front view schematic diagram of the present invention;

[0037] Figure 3 This is a rear view schematic diagram of the present invention;

[0038] Figure 4 This is a schematic diagram of the installation of the stirring blades of this utility model;

[0039] Figure 5 This is a cross-sectional schematic diagram of the second tank body of this utility model.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1. First tank body; 101. Frame; 102. Cover plate; 103. Discharge pipe; 104. Feed pipe; 2. Second air pump; 201. Extraction pipe; 202. Discharge pipe; 3. Second tank body; 301. Filling pipe; 302. Second drive motor; 303. Connecting shaft; 304. Stirring rod; 305. Connecting pipe; 306. Coil; 4. First drive motor; 401. Rotating shaft; 402. Stirring blade; 5. Heating box; 501. Air inlet pipe; 502. Filter screen; 503. Electric heating element; 6. First air pump; 601. Extraction pipe; 602. Exhaust pipe. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Please see Figures 1 to 5 As shown, the embodiments provided by this utility model are as follows:

[0044] Example 1

[0045] A raw material mixing device for coating processing includes a first tank 1, a cover plate 102 mounted on the first tank 1, a first drive motor 4 mounted on the cover plate 102, and a mixing blade 402 mounted on the output shaft of the first drive motor 4 via a rotating shaft 401. The mixing blade 402 is disposed inside the first tank 1.

[0046] A frame 101 is welded to the outer surface of the first tank 1. A heating box 5 is installed on the side of the outer surface of the first tank 1. A first air pump 6 is installed on the heating box 5. A filter screen 502 and an electric heating tube 503 are installed inside the heating box 5.

[0047] A second air pump 2 and a second tank 3 are installed on the cover plate 102, and a coil 306 is installed on the outer surface of the second tank 3;

[0048] A feed pipe 104 is installed on the cover plate 102, and a discharge pipe 103 is installed on the bottom end face of the first tank 1. A valve is installed on the discharge pipe 103. Both the discharge pipe 103 and the feed pipe 104 are connected to the first tank 1. The feed pipe 104 facilitates the addition of raw materials into the first tank 1. The discharge pipe 103 is equipped with a valve to control the discharge of the mixed raw materials.

[0049] An air inlet pipe 501 is installed on the bottom surface of the heating box 5. The air inlet pipe 501 is connected to the heating box 5 and provides a stable air input to the heating box 5, ensuring that the electric heating tube 503 has enough air to heat. Combined with the filter screen 502 inside the heating box 5, it can filter out dust, particles and other impurities in the air, preventing these impurities from entering the first tank 1 with the hot air and contaminating the raw materials.

[0050] The first air pump 6 is connected to an air extraction pipe 601 and an exhaust pipe 602. The end of the air extraction pipe 601 facing away from the first air pump 6 is installed inside the heating box 5. The end of the exhaust pipe 602 facing away from the first air pump 6 passes through the cover plate 102 and is installed inside the first tank 1. The first air pump 6 extracts the air heated by the electric heating tube 503 from the heating box 5 through the air extraction pipe 601, and then sends it into the first tank 1 through the exhaust pipe 602, so that the hot air can directly contact the raw materials inside the tank.

[0051] Example 2

[0052] To recover the waste heat generated during raw material drying and use the recovered heat for preheating the raw materials, for example, such as... Figures 1 to 5 As shown, this utility model also includes:

[0053] The second air pump 2 is connected to an extraction pipe 201 and an exhaust pipe 202. The end of the extraction pipe 201 facing away from the second air pump 2 passes through the cover plate 102 and is installed inside the first tank 1. The end of the exhaust pipe 202 facing away from the second air pump 2 is installed inside the coil 306. The second air pump 2 extracts the gas with residual heat generated during the drying of the raw materials in the first tank 1 through the extraction pipe 201, and then sends it into the coil 306 outside the second tank 3 through the exhaust pipe 202. This residual heat can preheat the raw materials in the second tank 3. In this way, the heat is fully utilized, reducing the energy consumption required to heat the raw materials in the second tank 3 separately, thus achieving the effect of energy saving.

[0054] The top surface of the second tank 3 is equipped with a filling pipe 301, and the bottom surface of the second tank 3 is equipped with a connecting pipe 305. The bottom surface of the connecting pipe 305 penetrates the cover plate 102 and is installed inside the first tank 1. A valve is installed on the connecting pipe 305. The filling pipe 301 facilitates the addition of raw materials to be processed into the second tank 3, while the connecting pipe 305 can transport the preheated raw materials in the second tank 3 to the first tank 1 for further stirring, realizing the continuous processing of raw materials from preheating to stirring. The valve on the connecting pipe 305 can control the timing and speed of raw material transportation and can be adjusted according to the preheating situation in the first tank 1 to ensure that the entire processing process proceeds in an orderly manner.

[0055] A second drive motor 302 is installed on the second tank 3. A stirring rod 304 is installed on the output shaft of the second drive motor 302 via a connecting shaft 303. The stirring rod 304 is located inside the second tank 3. The second drive motor 302 drives the connecting shaft 303 and the stirring rod 304 to rotate inside the second tank 3, which can stir the raw materials in the tank. This allows the raw materials to be constantly turned over during the preheating process, so that each part of the raw materials can fully contact the tank, resulting in more uniform heating and better preheating effect. At the same time, stirring can also break up any clumps that may form in the raw materials, making it easier for the raw materials that subsequently enter the first tank 1 to mix with other materials.

[0056] Furthermore, the second air pump 2, the second drive motor 302, the first drive motor 4, the first air pump 6, and the heating element 503 of the device can all be powered by an external power source and controlled by an external control switch. The power supply and control principles and circuit connection methods of the external power source and external control switch are common functional module designs, which are common knowledge in the fields of electrical automation control and mechanical equipment. The relevant technologies are widely used and the principles are clear, so there is no need to elaborate further.

[0057] Working principle:

[0058] Initial raw material addition and processing stage: Initial raw materials are added into the first tank 1 through the feed pipe 104 on the cover plate 102.

[0059] Stirring and heating stage: The first drive motor 4 is started, and its output shaft drives the stirring blades 402 to rotate inside the first tank 1 via the rotating shaft 401, stirring and mixing the internal raw materials. At the same time, the heating box 5 draws in air through the air inlet pipe 501, filters it through the filter screen 502, and heats it by the electric heating tube 503. The first air pump 6 extracts the heated air through the air extraction pipe 601 and sends it back into the first tank 1 through the exhaust pipe 602 to heat the raw materials.

[0060] Preheating and heat recovery stage: During the heating and stirring process, the raw materials in the first tank 1 generate gas with residual heat, which is extracted by the second air pump 2 through the extraction pipe 201 and sent into the coil 306 on the outer surface of the second tank 3 through the discharge pipe 202.

[0061] The second tank 3 raw material processing stage: the raw material to be processed is added into the second tank 3 through the filling pipe 301 on the second tank 3, the second drive motor 302 is started, and its output shaft drives the stirring rod 304 to rotate in the second tank 3 through the connecting shaft 303 to stir the raw material. At the same time, the waste heat gas in the coil 306 preheats the raw material in the second tank 3.

[0062] Raw material conveying stage: After the raw materials in the second tank 3 are preheated, the valve on the connecting pipe 305 is opened, and the raw materials are conveyed to the first tank 1 through the connecting pipe 305, where they are further stirred and mixed together with the raw materials in the first tank 1.

[0063] Finished product discharge stage: After all the raw materials in the first tank 1 have been mixed, open the valve on the discharge pipe 103 and discharge the mixed raw materials through the discharge pipe 103.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A raw material stirring device for coating processing, comprising a first tank (1), a cover plate (102) installed on the first tank (1), a first drive motor (4) installed on the cover plate (102), and stirring blades (402) installed on the output shaft of the first drive motor (4) via a rotating shaft (401), the stirring blades (402) being disposed inside the first tank (1), characterized in that: A frame (101) is welded to the outer surface of the first tank (1), a heating box (5) is installed on the side of the outer surface of the first tank (1), a first air pump (6) is installed on the heating box (5), and a filter screen (502) and an electric heating tube (503) are installed inside the heating box (5). The cover plate (102) is equipped with a second air pump (2) and a second tank (3), and the outer surface of the second tank (3) is equipped with a coil (306).

2. The raw material stirring device for coating processing according to claim 1, characterized in that: A feed pipe (104) is installed on the cover plate (102), and a discharge pipe (103) is installed on the bottom end face of the first tank (1). A valve is installed on the discharge pipe (103), and both the discharge pipe (103) and the feed pipe (104) are connected to the first tank (1).

3. The raw material stirring device for coating processing according to claim 1, characterized in that: An air inlet pipe (501) is installed on the bottom surface of the heating box (5), and the air inlet pipe (501) is connected to the heating box (5).

4. The raw material stirring device for coating processing according to claim 1, characterized in that: The first air pump (6) is connected to an air extraction pipe (601) and an exhaust pipe (602). The end of the air extraction pipe (601) facing away from the first air pump (6) is installed in the heating box (5), and the end of the exhaust pipe (602) facing away from the first air pump (6) passes through the cover plate (102) and is installed in the first tank (1).

5. The raw material stirring device for coating processing according to claim 1, characterized in that: The second air pump (2) is connected to an extraction pipe (201) and an exhaust pipe (202). The end of the extraction pipe (201) facing away from the second air pump (2) passes through the cover plate (102) and is installed inside the first tank (1). The end of the exhaust pipe (202) facing away from the second air pump (2) is installed inside the coil (306).

6. The raw material stirring device for coating processing according to claim 1, characterized in that: The top surface of the second tank (3) is equipped with a filling pipe (301), and the bottom surface of the second tank (3) is equipped with a connecting pipe (305). The bottom surface of the connecting pipe (305) passes through the cover plate (102) and is installed inside the first tank (1). A valve is installed on the connecting pipe (305).

7. The raw material stirring device for coating processing according to claim 1, characterized in that: A second drive motor (302) is installed on the second tank (3), and a stirring rod (304) is installed on the output shaft of the second drive motor (302) via a connecting shaft (303). The stirring rod (304) is located inside the second tank (3).

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