Variable-frequency speed-regulating mixing and stirring device for PVC (polyvinyl chloride) plastic particles

Abstract

The utility model discloses a PVC plastic particle frequency conversion speed regulation mixing and stirring device which comprises a mixing box, a stirring mechanism is arranged in the middle of the top of the mixing box, a feeding pipe is connected to the left side of the top of the mixing box, a first control valve is arranged on the feeding pipe, dehumidification mechanisms are symmetrically arranged on the left side and the right side of the mixing box, and a second control valve is arranged on the first control valve. A material carrying mechanism is arranged in the mixing box, a discharging pipe is connected to the middle of the bottom of the mixing box, and a second control valve is arranged on the discharging pipe; the stirring mechanism comprises a first motor box, a variable frequency motor, a rotating shaft and stirring blades, the first motor box is connected to the middle of the top of the mixing box, the variable frequency motor is arranged in the first motor box, and when PVC plastic particles are mixed and stirred through the stirring mechanism, hot air is guided into the mixing box through the dehumidification mechanism; and moisture on the PVC plastic particles is discharged through the exhaust pipe, so that the dryness of the PVC plastic particles is ensured, and the mixing and stirring effect and the production quality of the PVC plastic particles are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC plastic granule mixing, in particular to a PVC plastic granule variable frequency speed regulation mixing and stirring device. Background Art

[0002] PVC plastic particles are light yellow and translucent in nature. They are shiny and more transparent than polyethylene and polypropylene, but less transparent than polystyrene. Depending on the amount of additives used, they are divided into soft and hard polyvinyl chloride. Soft products are soft and tough, and feel sticky. The hardness of hard products is higher than that of low-density polyethylene, but lower than that of polypropylene, and whitening will occur at the inflection points.

[0003] In the prior art, in a PVC plastic pellet high-efficiency automatic mixer with a published Chinese patent application number CN202120035106.0, there is a lack of the function of dehumidifying the PVC plastic pellets in the mixing box, so that moisture adheres to the PVC plastic pellets, and the dryness of the PVC plastic pellets cannot be guaranteed, thereby affecting the uniformity of the mixing of the PVC plastic pellets.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a PVC plastic granule variable frequency speed regulation mixing and stirring device to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A PVC plastic pellet variable frequency speed regulating mixing and stirring device, comprising a mixing box, a stirring mechanism is arranged in the middle of the top of the mixing box, a feed pipe is connected to the left side of the top of the mixing box, a first control valve is arranged on the feed pipe, dehumidification mechanisms are symmetrically arranged on the left and right sides of the mixing box, a material conveying mechanism is arranged in the mixing box, a discharge pipe is connected to the middle of the bottom of the mixing box, and a second control valve is arranged on the discharge pipe;

[0008] The stirring mechanism comprises a first motor box, a variable frequency motor, a rotating shaft and a stirring blade, wherein the first motor box is connected to the middle of the top of the mixing box, the variable frequency motor is arranged in the first motor box, the top of the rotating shaft is connected to the output end of the bottom of the variable frequency motor, the stirring blade is connected to the outer wall of the rotating shaft, and the stirring blade is in the mixing box;

[0009] The dehumidification mechanism includes a cover body, a hot air blower, a duct and micro through holes, wherein the micro through holes and the cover body are symmetrically arranged in the middle of both sides of the mixing box, the micro through hole array is opened on the mixing box, the micro through holes are connected to the inner cavity of the cover body, the hot air blower is connected in the middle of the side opposite to the mixing box, and the duct is connected between the hot air blower and the cover body;

[0010] The dehumidification mechanism also includes an exhaust pipe and a one-way valve. The exhaust pipe is connected to the right side of the top of the mixing box, and the one-way valve is arranged on the exhaust pipe.

[0011] Preferably, the material conveying mechanism includes a second motor box, a motor, a screw and an annular rod. The second motor box is symmetrically connected to both sides of the bottom of the mixing box. The motor is arranged in the second motor box. The bottom end of the screw is connected to the output end of the bottom of the motor. The annular rod is arranged in the mixing box. The top end of the screw passes through the bottom of the mixing box and the annular rod and is connected to the bearing on the top surface of the inner cavity of the mixing box.

[0012] Preferably, a gap is left between the stirring blade and the annular rod, and a gap is left between the annular rod and the inner wall of the mixing box.

[0013] Preferably, the cover body is symmetrically connected with fixing plates above and below, and the fixing plates are in close contact with the mixing box.

[0014] Preferably, a screw is provided in the middle of the side of the fixing plate opposite to the mixing box, and the tail end of the screw passes through the fixing plate and is threadedly connected to the mixing box.

[0015] Preferably, an observation window is provided in the middle of the front side of the mixing box.

[0016] The beneficial effects of the utility model are:

[0017] 1. When the PVC plastic pellets are mixed and stirred by the stirring mechanism, the hot air is guided into the mixing box by the dehumidification mechanism, and the moisture on the PVC plastic pellets is discharged through the exhaust pipe. The tumbling force of the PVC plastic pellets in the mixing box is strengthened by the material conveying mechanism, the heating uniformity of the PVC plastic pellets is improved, the dryness of the PVC plastic pellets is ensured, and the mixing and stirring effect and production quality of the PVC plastic pellets are ensured.

[0018] 2. By setting the fixing plate and screws, it is convenient to disassemble and assemble the cover and the mixing box. By setting the observation window, it is convenient for the staff to understand the situation of the PVC plastic particles in the mixing box in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of a PVC plastic pellet variable frequency speed regulation mixing and stirring device according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a PVC plastic pellet variable frequency speed regulation mixing and stirring device according to an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of a ring rod of a PVC plastic pellet variable frequency speed regulation mixing and stirring device according to an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of a cover body of a PVC plastic pellet variable frequency speed regulation mixing and stirring device according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Mixing box; 2. Feed pipe; 3. First control valve; 4. Discharge pipe; 5. Second control valve; 6. First motor box; 7. Variable frequency motor; 8. Rotating shaft; 9. Stirring blade; 10. Cover; 11. Hot air blower; 12. Conduit; 13. Micro through hole; 14. Exhaust pipe; 15. One-way valve; 16. Second motor box; 17. Motor; 18. Screw; 19. Ring rod; 20. Fixing plate; 21. Screw; 22. Observation window. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the practical embodiment clearer, the technical solutions in the embodiment will be clearly and completely described below in conjunction with the drawings in the practical embodiment. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0028] In the description of this utility, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.

[0029] According to an embodiment of the utility model, a variable frequency speed regulating mixing and stirring device for PVC plastic particles is provided.

[0030] Embodiment 1

[0031] like Figure 1-4 As shown, a PVC plastic granule variable frequency speed regulating mixing and stirring device according to an embodiment of the utility model comprises a mixing box 1, a stirring mechanism is arranged in the middle of the top of the mixing box 1, a feed pipe 2 is connected to the left side of the top of the mixing box 1, a first control valve 3 is arranged on the feed pipe 2, a dehumidification mechanism is symmetrically arranged on the left and right sides of the mixing box 1, a material conveying mechanism is arranged in the mixing box 1, a discharge pipe 4 is connected to the middle of the bottom of the mixing box 1, and a second control valve 5 is arranged on the discharge pipe 4;

[0032] The stirring mechanism includes a first motor box 6, a variable frequency motor 7, a rotating shaft 8 and a stirring blade 9. The first motor box 6 is connected to the middle of the top of the mixing box 1. The variable frequency motor 7 is arranged in the first motor box 6. The top of the rotating shaft 8 is connected to the output end of the bottom of the variable frequency motor 7. The stirring blade 9 is connected to the outer wall of the rotating shaft 8, and the stirring blade 9 is in the mixing box 1.

[0033] The dehumidification mechanism includes a cover body 10, a hot air blower 11, a duct 12 and micro through holes 13. The micro through holes 13 and the cover body 10 are symmetrically arranged in the middle of both sides of the mixing box 1. The micro through holes 13 are arranged in an array on the mixing box 1. The micro through holes 13 are connected to the inner cavity of the cover body 10. The hot air blower 11 is connected to the middle of the side opposite to the mixing box 1. The duct 12 is connected between the hot air blower 11 and the cover body 10.

[0034] The dehumidification mechanism further includes an exhaust pipe 14 and a one-way valve 15. The exhaust pipe 14 is connected to the right side of the top of the mixing box 1, and the one-way valve 15 is arranged on the exhaust pipe 14;

[0035] The material-carrying mechanism comprises a second motor box 16, a motor 17, a screw 18 and an annular rod 19. The second motor box 16 is symmetrically connected to both sides of the bottom of the mixing box 1. The motor 17 is arranged in the second motor box 16. The bottom end of the screw 18 is connected to the output end of the bottom of the motor 17. The annular rod 19 is arranged in the mixing box 1. The top end of the screw 18 passes through the bottom of the mixing box 1 and the annular rod 19 and is connected to the bearing on the top surface of the inner cavity of the mixing box 1. Turn on the motor 17 to drive the screw 18 to rotate, so that the annular rod 19 is lifted and lowered in the mixing box 1, driving the PVC plastic particles to flip, strengthening the flipping force of the PVC plastic particles in the mixing box 1, and improving the heating uniformity of the PVC plastic particles. A gap is left between the stirring blade 9 and the annular rod 19 to prevent the annular rod 19 and the stirring blade 9 from affecting each other. A gap is left between the annular rod 19 and the inner wall of the mixing box 1 to prevent the mixing box 1 from affecting the lifting and lowering of the annular rod 19.

[0036] Embodiment 2

[0037] like Figure 1-4 As shown, a PVC plastic granule variable frequency speed regulating mixing and stirring device according to an embodiment of the utility model comprises a mixing box 1, a stirring mechanism is arranged in the middle of the top of the mixing box 1, a feed pipe 2 is connected to the left side of the top of the mixing box 1, a first control valve 3 is arranged on the feed pipe 2, a dehumidification mechanism is symmetrically arranged on the left and right sides of the mixing box 1, a material conveying mechanism is arranged in the mixing box 1, a discharge pipe 4 is connected to the middle of the bottom of the mixing box 1, and a second control valve 5 is arranged on the discharge pipe 4;

[0038] The stirring mechanism includes a first motor box 6, a variable frequency motor 7, a rotating shaft 8 and a stirring blade 9. The first motor box 6 is connected to the middle of the top of the mixing box 1. The variable frequency motor 7 is arranged in the first motor box 6. The top of the rotating shaft 8 is connected to the output end of the bottom of the variable frequency motor 7. The stirring blade 9 is connected to the outer wall of the rotating shaft 8, and the stirring blade 9 is in the mixing box 1.

[0039] The dehumidification mechanism includes a cover body 10, a hot air blower 11, a duct 12 and micro through holes 13. The micro through holes 13 and the cover body 10 are symmetrically arranged in the middle of both sides of the mixing box 1. The micro through holes 13 are arranged in an array on the mixing box 1. The micro through holes 13 are connected to the inner cavity of the cover body 10. The hot air blower 11 is connected to the middle of the side opposite to the mixing box 1. The duct 12 is connected between the hot air blower 11 and the cover body 10.

[0040] The dehumidification mechanism further includes an exhaust pipe 14 and a one-way valve 15. The exhaust pipe 14 is connected to the right side of the top of the mixing box 1, and the one-way valve 15 is arranged on the exhaust pipe 14;

[0041] The cover body 10 is symmetrically connected with a fixing plate 20 above and below, and the fixing plate 20 is in contact with the mixing box 1. A screw 21 is provided in the middle of the side of the fixing plate 20 opposite to the mixing box 1, and the tail end of the screw 21 passes through the fixing plate 20 and is threadedly connected to the mixing box 1, so as to facilitate the disassembly and assembly between the cover body 10 and the mixing box 1.

[0042] Embodiment 3

[0043] like Figure 1-4 As shown, a PVC plastic granule variable frequency speed regulating mixing and stirring device according to an embodiment of the utility model comprises a mixing box 1, a stirring mechanism is arranged in the middle of the top of the mixing box 1, a feed pipe 2 is connected to the left side of the top of the mixing box 1, a first control valve 3 is arranged on the feed pipe 2, a dehumidification mechanism is symmetrically arranged on the left and right sides of the mixing box 1, a material conveying mechanism is arranged in the mixing box 1, a discharge pipe 4 is connected to the middle of the bottom of the mixing box 1, and a second control valve 5 is arranged on the discharge pipe 4;

[0044] The stirring mechanism includes a first motor box 6, a variable frequency motor 7, a rotating shaft 8 and a stirring blade 9. The first motor box 6 is connected to the middle of the top of the mixing box 1. The variable frequency motor 7 is arranged in the first motor box 6. The top of the rotating shaft 8 is connected to the output end of the bottom of the variable frequency motor 7. The stirring blade 9 is connected to the outer wall of the rotating shaft 8, and the stirring blade 9 is in the mixing box 1.

[0045] The dehumidification mechanism includes a cover body 10, a hot air blower 11, a duct 12 and micro through holes 13. The micro through holes 13 and the cover body 10 are symmetrically arranged in the middle of both sides of the mixing box 1. The micro through holes 13 are arranged in an array on the mixing box 1. The micro through holes 13 are connected to the inner cavity of the cover body 10. The hot air blower 11 is connected to the middle of the side opposite to the mixing box 1. The duct 12 is connected between the hot air blower 11 and the cover body 10.

[0046] The dehumidification mechanism further includes an exhaust pipe 14 and a one-way valve 15. The exhaust pipe 14 is connected to the right side of the top of the mixing box 1, and the one-way valve 15 is arranged on the exhaust pipe 14;

[0047] An observation window 22 is provided in the middle of the front side of the mixing box 1 , so that the staff can understand the situation of the PVC plastic particles in the mixing box 1 in real time.

[0048] In summary, with the aid of the above technical solution of the utility model, when the device is in use, the variable frequency motor 7, the motor 17 and the hot air blower 11 are powered by an external power supply, the variable frequency motor 7 is turned on, the speed of the rotating shaft 8 is adjusted by the variable frequency motor 7, the rotating shaft 8 is driven to rotate, and the stirring blade 9 is driven to rotate, and the PVC plastic particles in the mixing box 1 are stirred. At the same time, the hot air blower 11 is turned on to guide the hot air into the mixing box 1 through the duct 12, the cover 10 and the micro through-hole 13, and the hot air carries the moisture on the PVC plastic particles. The PVC plastic pellets are discharged through the exhaust pipe 14, and the aperture of the micro through hole 13 is smaller than the length of the PVC plastic pellets, so as to prevent the PVC plastic pellets from entering the cover body 10 through the micro through hole 13. The motor 17 is turned on to drive the screw 18 to rotate, so that the annular rod 19 is lifted and lowered in the mixing box 1, and the PVC plastic pellets are driven to flip, thereby strengthening the flipping force of the PVC plastic pellets in the mixing box 1, improving the uniformity of heating of the PVC plastic pellets, ensuring the dryness of the PVC plastic pellets, and ensuring the mixing and stirring effect and production quality of the PVC plastic pellets.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PVC plastic granule variable frequency speed regulating mixing and stirring device, comprising a mixing box (1), characterized in that: A stirring mechanism is provided in the middle of the top of the mixing box (1); a feed pipe (2) is connected to the left side of the top of the mixing box (1); a first control valve (3) is provided on the feed pipe (2); dehumidification mechanisms are symmetrically provided on the left and right sides of the mixing box (1); a material conveying mechanism is provided inside the mixing box (1); a discharge pipe (4) is connected to the middle of the bottom of the mixing box (1); a second control valve (5) is provided on the discharge pipe (4); The stirring mechanism comprises a first motor box (6), a variable frequency motor (7), a rotating shaft (8) and a stirring blade (9), wherein the first motor box (6) is connected to the middle of the top of the mixing box (1), the variable frequency motor (7) is arranged in the first motor box (6), the top end of the rotating shaft (8) is connected to the output end of the bottom of the variable frequency motor (7), the stirring blade (9) is connected to the outer wall of the rotating shaft (8), and the stirring blade (9) is located in the mixing box (1); The dehumidification mechanism comprises a cover body (10), a hot air blower (11), a conduit (12) and micro through holes (13); the micro through holes (13) and the cover body (10) are both symmetrically arranged in the middle of both sides of the mixing box (1); an array of the micro through holes (13) is opened on the mixing box (1); the micro through holes (13) are connected to the inner cavity of the cover body (10); the hot air blower (11) is connected to the middle of the side opposite to the mixing box (1); and the conduit (12) is connected between the hot air blower (11) and the cover body (10); The dehumidification mechanism also includes an exhaust pipe (14) and a one-way valve (15); the exhaust pipe (14) is connected to the right side of the top of the mixing box (1); and the one-way valve (15) is arranged on the exhaust pipe (14).

2. A PVC plastic granule variable frequency speed regulating mixing and stirring device according to claim 1, characterized in that: The material conveying mechanism comprises a second motor box (16), a motor (17), a screw (18) and an annular rod (19); the second motor box (16) is symmetrically connected to the two sides of the bottom of the mixing box (1); the motor (17) is arranged in the second motor box (16); the bottom end of the screw (18) is connected to the output end of the bottom of the motor (17); the annular rod (19) is arranged in the mixing box (1); the top end of the screw (18) passes through the bottom of the mixing box (1) and the annular rod (19) and is connected to the bearing on the top surface of the inner cavity of the mixing box (1).

3. A PVC plastic granule variable frequency speed regulating mixing and stirring device according to claim 2, characterized in that: A gap is left between the stirring blade (9) and the annular rod (19), and a gap is left between the annular rod (19) and the inner wall of the mixing box (1).

4. A PVC plastic granule variable frequency speed regulating mixing and stirring device according to claim 1, characterized in that: The cover body (10) is symmetrically connected to a fixing plate (20) in the upper and lower parts, and the fixing plate (20) is in close contact with the mixing box (1).

5. A PVC plastic granule variable frequency speed regulating mixing and stirring device according to claim 4, characterized in that: A screw (21) is arranged in the middle of the side of the fixing plate (20) opposite to the mixing box (1), and the tail end of the screw (21) passes through the fixing plate (20) and is threadedly connected to the mixing box (1).

6. A PVC plastic granule variable frequency speed regulating mixing and stirring device according to claim 1, characterized in that: An observation window (22) is provided in the middle of the front side of the mixing box (1).

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