Horizontal powder stirrer

Abstract

The utility model discloses a horizontal powder stirrer which comprises a mixing bin, a stirring assembly and a feeding assembly, a feeding port and a discharging pipe are arranged at the top and the bottom of the mixing bin respectively, the stirring assembly comprises a stirring shaft, a spiral piece set and a main motor, and the feeding assembly comprises a double-spiral shaft, a feeding motor, a flashboard and an air cylinder; the utility model aims to add a double-screw shaft structure at the bottom of the traditional stirrer, when the flashboard is closed, the double-screw shaft synchronously rotates to continuously push materials deposited at dead angles on two sides of the bottom of the mixing bin to the center, and the auxiliary stirring shaft efficiently mixes the materials in the mixing bin, so that the problem of accumulation of the materials at the bottom of the bin is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agitator, especially a horizontal powder agitator. BACKGROUND

[0002] In the industrial field of chemical industry, food, pharmaceutical, building material and the like, the mixing of powder material is a vital production process link, the horizontal powder agitator is widely used in the uniform mixing of various dry powder, granular material due to its high mixing efficiency, large capacity, convenient unloading and the like, the traditional horizontal agitator usually includes mixing bin, the stirring shaft in the center of mixing bin and the main motor driving the rotation of stirring shaft, the spiral belt structure is installed on the stirring shaft, and the material is mixed in the mixing bin by the rotation of stirring shaft.

[0003] However, the traditional horizontal agitator avoids the interference between mixing bin and stirring shaft, and there is a large gap between stirring shaft and mixing bin, which also makes the powder particles easily deposit and accumulate in the bottom of bin, and the component proportion of each batch of material cannot be accurately controlled, resulting in the large deviation of the component proportion of each batch of material, which seriously affects the product quality. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiency of the background art, the utility model adopts the technical scheme of a horizontal powder agitator, which comprises a mixing bin, a stirring assembly and a feeding assembly, and the top and bottom of the mixing bin are respectively provided with a feeding port and a discharge pipe.

[0005] The stirring assembly comprises a stirring shaft, a spiral blade group and a main motor, the upper portion of the mixing bin is rotatably connected with the stirring shaft for stirring the material, the stirring shaft is connected with the spiral blade group around the stirring shaft, and the stirring shaft is connected with the main motor.

[0006] The feeding assembly comprises a double helical shaft, a feeding motor, a gate and a cylinder, the lower portion of the mixing bin is rotatably connected with the double helical shaft for conveying the material to the discharge pipe, the double helical shaft is connected with the feeding motor, one end of the gate is rotatably connected with the discharge pipe, the other end of the gate is connected with the cylinder, and the cylinder controls the opening or closing of the discharge pipe through the gate.

[0007] The above technical scheme adds the structure of double helical shaft to the bottom of the traditional agitator, when the gate is closed, the double helical shaft rotates synchronously, continuously pushes the material deposited in the dead angle of the bottom of mixing bin to the center, assists the stirring shaft to efficiently mix the material in the mixing bin, and effectively avoids the problem of material accumulation in the bottom of bin.

[0008] The utility model is further provided with the stirring chamber and the feeding chamber on the upper and lower sides of the mixing bin, the stirring shaft and the double helical shaft are rotatably connected with the stirring chamber and the feeding chamber respectively, and the bottom of the feeding chamber is provided with a semicircular groove matched with the double helical shaft.

[0009] The bottom of the mixing bin is a semicircular groove structure, so that the bottom of the double helical shaft cooperates with the gap of the feeding chamber, effectively prevents powder from accumulating at the bottom of the bin, and improves the stirring efficiency.

[0010] The double helical shaft is provided with a left helical blade and a right helical blade, and the discharge pipe is arranged at the intersection of the left helical blade and the right helical blade.

[0011] The double helical shaft is provided with a left helical blade and a right helical blade with opposite rotation directions, so that the left helical blade and the right helical blade respectively provide opposite axial thrust to the material when the double helical shaft rotates in one direction, thereby meeting the requirements of auxiliary stirring and feeding.

[0012] The discharge pipe is provided with an open slot matched with the gate, a main hinge part arranged on one side of the open slot, and a guide plate used for abutting against the gate, the outer side of the gate is provided with a circular arc part, both ends of the circular arc part are provided with a secondary hinge part, one end of the circular arc part is hinged to the main hinge part, and the other end is hinged to the output end of the air cylinder.

[0013] When the air cylinder controls the gate to rotate and open, the gate is away from the open slot, at this time, the discharge pipe is opened, and the material in the mixing bin flows out from the discharge pipe under the action of gravity; when the air cylinder controls the gate to rotate and close, the gate is tightly clamped into the open slot, at this time, the discharge pipe is closed, so as to avoid leakage of the material from the discharge pipe, thereby realizing automatic control of the outflow of the material.

[0014] The mixing chamber is provided with an auxiliary material pipe on one side.

[0015] The auxiliary material pipe is arranged above the stirring shaft, the auxiliary material pipe is used for connecting an external booster tank, the booster pipe uniformly press the emulsifier into the mixing chamber according to the amount, and the material is fully mixed according to the proportion.

[0016] The helical blade group comprises an adapter rod, an inner helical blade and an outer helical blade, the adapter rod is linearly and uniformly distributed on the stirring shaft, and adjacent adapter rods are vertically distributed, and the adapter rod is fixedly connected with the inner helical blade and the outer helical blade.

[0017] Further, the adapter rod is provided with a center ring and side rods symmetrically distributed on both sides of the center ring, the center ring is provided with a mounting hole, the stirring shaft is sleeved with the center ring and is threadedly connected with the center ring through the mounting hole, and the inner helical blade and the outer helical blade are respectively welded on the inner side and the outer side of the side rod.

[0018] Further, the axis lines of the inner helical blade and the outer helical blade coincide with the center line of the stirring shaft.

[0019] The interval of the adjacent adapter rods is equal to the quarter pitch of the inner helical blade or the outer helical blade, so that the inner helical blade and the outer helical blade are fixed by multi-point welding, the force borne by the helical blade is dispersed to the multiple adapter rods at the same time, the stability of the structure is improved, two groups of inner helical blades and two groups of outer helical blades are fixed on each adapter rod at the same time, the contact surface with the material is increased, and the stirring efficiency is improved.

[0020] The utility model further provides for, the mixing bin is located at the filter screen and dust catcher of feeding port, dust catcher is located above filter screen is equipped with for external negative pressure pipe negative pressure branch pipe.

[0021] The utility model discloses further provide for, dust catcher external negative pressure pipe makes its inside form negative pressure, in the instant of powder pouring into feeding port, the dust that naturally rises will be collected by dust catcher automatically, thereby avoid dust diffusion to workshop, effectively improve the working environment, protect employee health.

[0022] The utility model further provides for, dust catcher external negative pressure pipe makes its inside form negative pressure, in the instant of powder pouring into feeding port, the dust that naturally rises will be collected by dust catcher automatically, thereby avoid dust diffusion to workshop, effectively improve the working environment, protect employee health. DRAWINGS

[0023] Figure 1 It is the perspective drawing of the utility model;

[0024] Figure 2 It is the sectional view of the utility model;

[0025] Figure 3 It is the utility model Figure 2 It is the local enlarged view of the A view of the utility model;

[0026] Figure 4 It is the enlarged view of the discharge pipe of the bottom view of the utility model;

[0027] Figure 5 It is the perspective drawing of the stirring assembly of the utility model;

[0028] Figure 6 It is the structural schematic diagram of the combination of the upper floor board and the lower floor board of the utility model;

[0029] Wherein: 1-mixing bin, 2-stirring assembly, 3-feeding assembly, 4-stirring shaft, 5-helical blade group, 6-main motor, 7-double helical shaft, 8-feeding motor, 9-shutter, 10-cylinder, 11-feeding port, 12-discharge pipe, 13-stirring chamber, 14-feeding chamber, 15-opening slot, 16-main hinged part, 17-guide plate, 18-filter screen, 19-dust catcher, 20-negative pressure branch pipe, 21-adapter rod, 22-inner helical blade, 23-outer helical blade, 24-center ring, 25-side rod, 26-mounting hole, 27-accessory pipe, 31-left helical blade, 32-right helical blade, 33-circular arc part, 34-secondary hinged part; DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described below with reference to the accompanying drawings. In this process, in order to ensure the clarity and convenience of the description, we may exaggerate the width of the lines or the size of the constituent elements in the drawings.

[0031] In addition, the terms below are defined based on the functions in the present application, which can be different according to the intention or habit of the user or the user, therefore, the terms are defined based on the entire content of the specification.

[0032] As shown in Figure 1 , 2 The utility model discloses a horizontal powder mixer, including mixing bin 1, stirring subassembly 2 and feeding subassembly 3, mixing bin 1 top and bottom are equipped with feed inlet 11 and discharge pipe 12 respectively:

[0033] Stirring subassembly 2 includes stirring shaft 4, spiral piece group 5 and main motor 6, the upper of mixing bin 1 is rotatably connected with the stirring shaft 4 for stirring material, and the stirring shaft 4 is connected with spiral piece group 5 around, and the stirring shaft 4 is connected with main motor 6 through speed reducer;

[0034] Feeding subassembly 3 includes double helical shaft 7, feeding motor 8, gate 9 and cylinder 10, and the lower of mixing bin 1 is rotatably connected with the double helical shaft 7 for conveying material to the discharge pipe 12, and the double helical shaft 7 is connected with feeding motor 8 through speed reducer, one end of gate 9 is rotatably connected to discharge pipe 12, and the other end is connected with cylinder 10, and cylinder 10 controls the opening or closing of discharge pipe 12 through gate 9.

[0035] In the embodiment, the upper and lower sides of the mixing bin 1 are respectively provided with a stirring chamber 13 and a feeding chamber 14, the stirring shaft 4 and the double helical shaft 7 are respectively rotatably connected to the stirring chamber 13 and the feeding chamber 14, and the bottom of the feeding chamber 14 is provided with a semicircular groove matched with the double helical shaft 7. The bottom of the mixing bin 1 is a semicircular groove structure, so that the bottom of the double helical shaft 7 is gap-fitted with the feeding chamber 14, effectively preventing the powder from accumulating at the bottom of the bin and improving the stirring efficiency.

[0036] In the embodiment, one side of the stirring chamber 13 is provided with an auxiliary material pipe 27, the auxiliary material pipe 27 is arranged above the stirring shaft 4, the auxiliary material pipe 27 is used for connecting an external booster tank, and a booster pipe uniformly press the emulsifier into the stirring chamber 13 according to the amount, so that the materials are fully mixed according to the proportion.

[0037] In combination Figure 3 , 4As shown, in the embodiment, the double helical shaft 7 is provided with a left helical blade 31 and a right helical blade 32, and the discharge pipe 12 is arranged at the intersection of the left helical blade 31 and the right helical blade 32. The double helical shaft 7 is provided with the left helical blade 31 and the right helical blade 32 with opposite rotation directions, so that the left helical blade 31 and the right helical blade 32 respectively provide opposite axial thrust to the material when the double helical shaft 7 rotates in one direction. The discharge pipe 12 is provided with an open slot 15 matched with the gate plate 9, a main hinge part 16 arranged on one side of the open slot 15, and a guide plate 17 used for abutting against the gate plate 9. The outer side of the gate plate 9 is provided with a circular arc part 33, and the two ends of the circular arc part 33 are provided with a secondary hinge part 34. One end of the circular arc part 33 is hinged to the main hinge part 16, and the other end is hinged to the output end of the air cylinder 10.

[0038] In combination Figure 5 As shown, in the embodiment, the helical blade group 5 includes an adapter rod 21, an inner helical blade 22, and an outer helical blade 23. The adapter rod 21 is linearly and uniformly distributed on the stirring shaft 4 and is vertically distributed between adjacent adapter rods 21. The adapter rod 21 is fixedly connected with the inner helical blade 22 and the outer helical blade 23. The adapter rod 21 is provided with a center ring 24 and side rods 25 symmetrically distributed on both sides of the center ring 24. The center ring 24 is provided with a mounting hole 26. The stirring shaft 4 is sleeved with the center ring 24 and is threadedly connected with the center ring 24 through the mounting hole 26. The inner helical blade 22 and the outer helical blade 23 are respectively welded on the inner and outer sides of the side rods 25. The axes of the inner helical blade 22 and the outer helical blade 23 coincide with the center line of the stirring shaft 4. The distance between adjacent adapter rods 21 is equal to one fourth of the pitch of the inner helical blade 22 or the outer helical blade 23, so that the inner helical blade 22 and the outer helical blade 23 are fixed by multi-point welding. The force acting on the helical blades is dispersed to multiple adapter rods 21, improving the stability of the structure. Two groups of inner helical blades 22 and two groups of outer helical blades 23 are fixed on each adapter rod 21, increasing the contact surface with the material and improving the stirring efficiency.

[0039] In the embodiment, the mixing bin 1 is provided with a filter screen 18 and a dust collection hood 19 at the feeding port 11. The dust collection hood 19 is arranged above the filter screen 18 and is provided with a negative pressure branch pipe 20 connected with an external negative pressure pipe. The dust collection hood 19 forms a negative pressure inside by connecting with the external negative pressure pipe. At the moment when the powder is poured into the feeding port 11, the naturally rising dust will be automatically collected by the dust collection hood 19, so as to avoid the spread of dust to the workshop and effectively improve the working environment and protect the health of employees.

[0040] In combination Figure 6As shown, the working principle of the utility model is: the feed inlet 11 and the discharge pipe 12 of the mixing bin 1 are respectively located at the upper and lower floors, the staff pours multiple powder materials from the feed inlet 11 into the mixing bin 1 on the upper floor, the rotation of the stirring shaft 4 is controlled by the main motor 6, so that the materials are uniformly mixed, and the double helical shaft 7 at the bottom of the mixing bin 1 is rotated by the feeding motor 8, the double helical shaft 7 pushes the materials in the dead angle at the bottom of the bin from the two sides to the middle direction, so that the effect of assisting the mixing of the materials by the stirring shaft 4 is realized; after the stirring is completed, the staff places the collecting box at the discharge pipe 12 of the lower floor in advance, the rotation of the gate 9 is controlled by the cylinder 10 to open, the materials in the mixing bin 1 flow out from the discharge pipe 12 by the effect of the double helical shaft 7, so that the unloading is completed.

[0041] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A horizontal powder mixer characterized by comprising: Including mixing bin (1), stirring assembly (2) and feeding assembly (3), the top and bottom of mixing bin (1) are respectively provided with feeding port (11) and discharge pipe (12): Stirring assembly (2) includes stirring shaft (4), spiral blade group (5) and main motor (6), the upper side of mixing bin (1) is rotatably connected with stirring shaft (4) for stirring material, stirring shaft (4) is connected with spiral blade group (5) around, and stirring shaft (4) is connected with main motor (6); Feeding assembly (3) includes double helix shaft (7), feeding motor (8), gate (9) and air cylinder (10), the lower side of mixing bin (1) is rotatably connected with double helix shaft (7) for conveying material to discharge pipe (12), double helix shaft (7) is connected with feeding motor (8), one end of gate (9) is rotatably connected to discharge pipe (12), the other end is connected with air cylinder (10), and air cylinder (10) controls the opening or closing of discharge pipe (12) through gate (9).

2. A horizontal powder mixer according to claim 1, characterized in that: The upper and lower sides of the mixing bin (1) are respectively provided with stirring chamber (13) and feeding chamber (14), the stirring shaft (4) and the double helix shaft (7) are respectively rotatably connected to the stirring chamber (13) and the feeding chamber (14), and the bottom of the feeding chamber (14) is provided with a semicircular groove matched with the double helix shaft (7).

3. A horizontal powder mixer according to claim 2, wherein: The double helix shaft (7) is provided with left spiral blade (31) and right spiral blade (32), and the discharge pipe (12) is arranged at the intersection of the left spiral blade (31) and the right spiral blade (32).

4. A horizontal powder mixer according to claim 3, wherein: The discharge pipe (12) is provided with an opening slot (15) matched with the gate (9), a main hinge part (16) on one side of the opening slot (15), and a guide plate (17) for abutting against the gate (9), the outer side of the gate (9) is provided with a circular arc part (33), both ends of the circular arc part (33) are provided with a secondary hinge part (34), one end of the circular arc part (33) is hinged to the main hinge part (16), and the other end is connected to the air cylinder (10).

5. The horizontal powder mixer according to claim 2, wherein: One side of the stirring chamber (13) is provided with an auxiliary material pipe (27).

6. The horizontal powder mixer according to claim 1, wherein: The spiral blade group (5) includes adapter rod (21), inner spiral blade (22) and outer spiral blade (23), the adapter rod (21) is linearly and uniformly distributed on the stirring shaft (4), and adjacent adapter rods (21) are vertically distributed, and the adapter rod (21) is fixedly connected with the inner spiral blade (22) and the outer spiral blade (23).

7. A horizontal powder mixer according to claim 6, wherein: The adapter rod (21) is provided with a center ring (24) and side rods (25) symmetrically distributed on both sides of the center ring (24), the center ring (24) is provided with a mounting hole (26), the stirring shaft (4) is sleeved with the center ring (24) and is threadedly connected with the center ring (24) through the mounting hole (26), and the inner spiral blade (22) and the outer spiral blade (23) are respectively welded on the inner and outer sides of the side rod (25).

8. A horizontal powder mixer according to claim 7, characterized in that: The axes of the inner spiral blade (22) and the outer spiral blade (23) coincide with the center line of the stirring shaft (4).

9. The horizontal powder mixer according to claim 1, wherein: The mixing bin (1) is provided with a filter screen (18) and a dust hood (19) at the inlet (11), and the dust hood (19) is provided above the filter screen (18) and is provided with a negative pressure branch pipe (20) for connecting a negative pressure pipe.

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