Raw material mixing and drying machine for plastic woven bag production

Abstract

The utility model relates to a raw material mixing dryer for plastic woven bag production, which comprises a mixing box, the center of the top in the mixing box is rotatably connected with a rotating shaft, the top and the bottom of the rotating shaft are provided with wall scraping frames contacted with the inner wall of the mixing box, and the rotating shaft is provided with spiral stirring blades. A plurality of transverse rods which are connected with the wall scraping frame and do not interfere with the spiral stirring blades are arranged on the rotating shaft, a plurality of pairs of stirring lining plates are arranged on the transverse rods at intervals, a first motor for driving the rotating shaft to rotate is arranged at the top of the mixing box, and a hot air drying mechanism is installed on the side wall of the mixing box and comprises an air inlet pipe, an electric control box and a fan. The outlet end of the air inlet pipe is connected to the bottom of the mixing box, the inlet end of the air inlet pipe is connected with the fan, a heating wire set is arranged in the air inlet pipe, and the electric cabinet is installed on the outer side of the air inlet pipe and connected with the heating wire set. According to the utility model, mixing and drying are integrated, and raw materials are dried while being mixed, so that the production efficiency is improved, the occupied area is reduced, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic woven bag production, in particular to a raw material mixing and drying machine for the production of plastic woven bags. Background Art

[0002] Plastic woven bags, with their advantages of high stability, lightweight, and low production costs, are widely used for packaging fertilizers, chemicals, agricultural products, and other materials, bringing great convenience to human life. Common plastic woven bags include feed woven bags, chemical woven bags, putty powder woven bags, urea woven bags, vegetable mesh bags, and fruit mesh bags. Raw material mixing is a critical step in the production of plastic woven bags, and a mixing device is typically required to mix the raw materials. However, the raw materials may contain a certain amount of moisture. If this moisture is not removed, it will evaporate into steam during high-temperature processing such as extrusion. This not only affects the material's melt quality but can also cause bubble formation, affecting the mechanical properties and appearance of the final product.

[0003] In the modern plastics processing industry, mixing and drying raw materials are often performed separately, requiring investment in and maintenance of two independent sets of equipment: dryers and mixers. This occupies a large area and increases operational complexity. Separate operations mean that more workers are needed for monitoring and management, increasing labor costs and training needs. Production time is extended because drying is required before mixing, which may extend the overall production cycle and affect production efficiency. Raw materials are prone to agglomeration during storage, and direct mixing results in poor mixing effect. Summary of the Invention

[0004] The utility model aims to solve the deficiencies of the prior art and provides a raw material mixing and drying machine for producing plastic woven bags.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a raw material mixing and drying machine for the production of plastic woven bags, comprising a mixing box, a pre-processing box is provided on the top of the mixing box, a plurality of cavities are provided in the pre-processing box, a stirring mechanism is provided in the cavity, a power mechanism for driving the stirring mechanism to rotate is provided on the top of the pre-processing box, a feed port communicating with the cavity is provided on the top of the pre-processing box, a discharge pipe communicating with the mixing box is provided at the bottom, a support seat is provided between the two sides of the bottom of the pre-processing box and the top of the mixing box, a rotating shaft is connected to the center of the top of the mixing box, a scraping frame in contact with the inner wall of the mixing box is installed on the top and bottom of the rotating shaft, a spiral stirring blade is provided on the rotating shaft, and a Several cross bars are connected to the scraper frame and do not interfere with the spiral stirring blades. Several pairs of stirring liners are arranged at intervals on the cross bars. A first motor that drives the rotating shaft is provided on the top of the mixing box, a discharge barrel is provided at the bottom of the mixing box, and a hot air drying mechanism is installed on the side wall of the mixing box. The hot air drying mechanism includes an air inlet pipe, an electric control box, and a fan. The outlet end of the air inlet pipe is connected to the bottom of the mixing box, and the inlet end is connected to the fan. A heating wire group is provided inside the air inlet pipe, and the electric control box is installed on the outside of the air inlet pipe and connected to the heating wire group. A thermometer is installed at one end of the air inlet pipe close to the mixing box, and an air outlet pipe is connected to the top of the mixing box away from the air inlet pipe. Filters are provided at the outlet of the air inlet pipe and the inlet of the air outlet pipe.

[0006] In particular, the stirring mechanism includes a stirring shaft rotatably connected to the top center of the cavity, with several pairs of plate-type stirring blades on the stirring shaft, inclined blades at the bottom of the side walls of the plate-type stirring blades, and scrapers in contact with the inner wall of the cavity connected to the top and bottom sides of the stirring shaft.

[0007] In particular, the power mechanism includes a protective cover arranged on the top of the pre-processing box, the top of the stirring shaft passes through the protective cover and is rotatably connected to the top of the protective cover, a second motor is fixedly installed on the top of the protective cover, and the second motor and the stirring shaft are driven by a belt.

[0008] In particular, the air outlet duct is connected to the waste heat recovery equipment.

[0009] In particular, a plurality of legs are installed at the bottom of the mixing box.

[0010] In particular, a connecting seat is provided between the electric control box and the mixing box.

[0011] The beneficial effects of the utility model are as follows: the utility model can stir and break up the raw materials in advance by arranging a pre-processing box, a cavity, a stirring mechanism, and a power mechanism to prevent caking from affecting the subsequent mixing quality; a good mixing effect can be achieved by arranging a scraping frame, spiral stirring blades, a cross bar, and a stirring liner on the rotating shaft; and a hot air drying mechanism is provided to facilitate hot air drying during mixing to remove moisture from the raw materials and avoid affecting the subsequent woven bag production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0014] In the figure: 1-mixing box; 2-pre-processing box; 3-cavity; 4-feed port; 5-discharge pipe; 6-support base; 7-rotating shaft; 8-scraper frame; 9-spiral stirring blade; 10-cross bar; 11-stirring liner; 12-first motor; 13-discharge barrel; 14-air inlet pipe; 15-electric control box; 16-fan; 17-thermometer; 18-air outlet pipe; 19-filter; 20-stirring shaft; 21-plate stirring blade; 22-blade; 23-protective cover; 24-second motor; 25-connecting base;

[0015] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1-Figure 2 As shown, a raw material mixing and drying machine for the production of plastic woven bags includes a mixing box 1, a plurality of legs are installed at the bottom of the mixing box 1, a pre-processing box 2 is provided on the top of the mixing box 1, a plurality of cavities 3 are provided in the pre-processing box 2, a stirring mechanism is provided in the cavity 3, a power mechanism for driving the stirring mechanism to rotate is provided on the top of the pre-processing box 2, a feeding port 4 connected to the cavity 3 is provided on the top of the pre-processing box 2, a discharge pipe 5 connected to the mixing box 1 is provided at the bottom, and a support seat 6 is provided between the two sides of the bottom of the pre-processing box 2 and the top of the mixing box 1; the stirring mechanism includes a rotating connection A stirring shaft 20 is connected to the top center of the cavity 3, and a plurality of pairs of plate stirring blades 21 are provided on the stirring shaft 20. An inclined blade 22 is provided at the bottom of the side wall of the plate stirring blade 21. The top and bottom sides of the stirring shaft 20 are connected to a scraper that contacts the inner wall of the cavity 3; the power mechanism includes a protective cover 23 provided on the top of the pre-processing box 2, the top of the stirring shaft 20 passes through the protective cover 23 and is rotatably connected to the top inside the protective cover 23, and a second motor 24 is fixedly provided on the top of the protective cover 23, and the second motor 24 and the stirring shaft 20 are driven by a belt.

[0018] A rotating shaft 7 is connected to the top center of the mixing box 1 for rotation. Scraping frames 8 in contact with the inner wall of the mixing box 1 are installed on the top and bottom of the rotating shaft 7. A spiral stirring blade 9 is provided on the rotating shaft 7. A plurality of cross bars 10 connected to the scraping frames 8 and not interfering with the spiral stirring blade 9 are provided on the rotating shaft 7. A plurality of pairs of stirring liners 11 are provided at intervals on the cross bars 10. A first motor 12 for driving the rotating shaft 7 is provided on the top of the mixing box 1, and a discharge barrel 13 is provided at the bottom of the mixing box 1; the spiral stirring blade 9 can push the raw materials in the axial and radial directions at the same time to improve the uniformity of the raw material mixing. The scraping frame 8 can effectively remove the raw materials attached to the inner wall of the mixing box 1 to prevent the raw materials from reacting unevenly due to long-term contact with the inner wall. By adding stirring liners 11 to the cross bars 10, the effective area in contact with the raw materials is increased, making the energy transfer during the stirring process more efficient, which helps to accelerate the mixing process.

[0019] A hot air drying mechanism is installed on the side wall of the mixing box 1, and the hot air drying mechanism includes an air inlet pipe 14, an electrical control box 15, and a fan 16. The outlet end of the air inlet pipe 14 is connected to the bottom of the mixing box 1, and the inlet end is connected to the fan 16. A heating wire group is provided inside the air inlet pipe 14, and the electrical control box 15 is installed on the outside of the air inlet pipe 14 and connected to the heating wire group. A connecting seat 25 is provided between the electrical control box 15 and the mixing box 1. A thermometer 17 is installed at one end of the air inlet pipe 14 close to the mixing box 1, and an air outlet pipe 18 is connected to the top of the mixing box 1 away from the air inlet pipe 14. Filters 19 are provided at the outlet of the air inlet pipe 14 and the inlet of the air outlet pipe 18; the air outlet pipe 18 is externally connected to waste heat recovery equipment to avoid heat waste.

[0020] When the present invention is working, the raw materials enter the cavity 3 through the feed port 4, the second motor 24 is started, and the stirring shaft 20 drives the plate stirring blade 21 to rotate to stir the raw materials. During this period, the agglomerated raw materials are broken up, and the blade 22 can improve the efficiency of breaking up the agglomerated raw materials. After sufficient stirring and breaking up, the raw materials enter the mixing box 1 through the discharge pipe 5. At this time, the first motor 12 and the fan 16 are started, and the rotating shaft 7 drives the scraping frame 8, the spiral stirring blade 9, the cross bar 10, and the stirring lining 11 to rotate to fully mix the raw materials and remove the raw materials attached to the inner wall. The air blown out by the fan 16 is heated by the electric heating wire group and enters the mixing box 1 to dry the raw materials, and then is discharged to the waste heat recovery equipment through the air outlet pipe 18. After the raw materials are mixed and dried, they are discharged through the discharge barrel 13.

[0021] The utility model can stir and break up the raw materials in advance to prevent agglomeration from affecting the quality of subsequent mixing, and is also convenient for removing moisture in the raw materials through hot air drying during mixing to avoid affecting the quality of subsequent woven bag production.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A raw material mixing and drying machine for producing plastic woven bags, comprising a mixing box (1), characterized in that: A pre-processing box (2) is provided on the top of the mixing box (1), a plurality of cavities (3) are provided in the pre-processing box (2), a stirring mechanism is provided in the cavity (3), a power mechanism for driving the stirring mechanism to rotate is provided on the top of the pre-processing box (2), a feed port (4) communicating with the cavity (3) is provided on the top of the pre-processing box (2), a discharge pipe (5) communicating with the mixing box (1) is provided on the bottom, a support seat (6) is provided between the two sides of the bottom of the pre-processing box (2) and the top of the mixing box (1), a rotating shaft (7) is rotatably connected to the center of the top of the mixing box (1), a scraping frame (8) in contact with the inner wall of the mixing box (1) is installed on the top and bottom of the rotating shaft (7), a spiral stirring blade (9) is provided on the rotating shaft (7), a plurality of cross bars (10) connected to the scraping frame (8) and not interfering with the spiral stirring blade (9) are provided on the rotating shaft (7), and the cross bars (10) are provided at intervals. A plurality of pairs of stirring liners (11) are provided. A first motor (12) for driving the rotating shaft (7) to rotate is provided at the top of the mixing box (1). A discharging cylinder (13) is provided at the bottom of the mixing box (1). A hot air drying mechanism is installed on the side wall of the mixing box (1). The hot air drying mechanism comprises an air inlet pipe (14), an electric control box (15), and a fan (16). The outlet end of the air inlet pipe (14) is connected to the bottom of the mixing box (1), and the inlet end is connected to the fan (16). An electric heating wire group is provided inside the air inlet pipe (14). The electric control box (15) is installed outside the air inlet pipe (14) and is connected to the electric heating wire group. A thermometer (17) is installed at one end of the air inlet pipe (14) adjacent to the mixing box (1). An air outlet pipe (18) is connected to the top of the mixing box (1) away from the air inlet pipe (14). Filters (19) are provided at the outlet of the air inlet pipe (14) and the inlet of the air outlet pipe (18).

2. A raw material mixing and drying machine for producing plastic woven bags according to claim 1, characterized in that: The stirring mechanism comprises a stirring shaft (20) rotatably connected to the top center of the cavity (3); a plurality of pairs of plate-type stirring blades (21) are provided on the stirring shaft (20); inclined blades (22) are provided at the bottom of the side walls of the plate-type stirring blades (21); and scrapers are connected to one side of the top and bottom of the stirring shaft (20) and contact the inner wall of the cavity (3).

3. A raw material mixing and drying machine for producing plastic woven bags according to claim 2, characterized in that: The power mechanism comprises a protective cover (23) arranged on the top of the pre-processing box (2); the top of the stirring shaft (20) passes through the protective cover (23) and is rotatably connected to the top of the protective cover (23); a second motor (24) is fixedly passed through the top of the protective cover (23); and a belt is used to transmit power between the second motor (24) and the stirring shaft (20).

4. A raw material mixing and drying machine for producing plastic woven bags according to claim 1, characterized in that: The air outlet pipe (18) is externally connected to waste heat recovery equipment.

5. A raw material mixing and drying machine for producing plastic woven bags according to claim 1, characterized in that: A plurality of supporting legs are installed at the bottom of the mixing box (1).

6. A raw material mixing and drying machine for producing plastic woven bags according to claim 1, characterized in that: A connecting seat (25) is provided between the electric control box (15) and the mixing box (1).

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