CN220878495U

CN220878495U - Solid particle mixer

Info

Publication number: CN220878495U
Application number: CN202322201215.7U
Authority: CN
Inventors: 吴景波
Original assignee: Luoyang Zhaoxing Powder Coating Co ltd
Current assignee: Luoyang Zhaoxing Powder Coating Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-05-03
Anticipated expiration: 2033-08-15

Abstract

The utility model relates to the technical field of powder coating production, in particular to a solid particle mixer. Comprises a mixing drum; the stirring device comprises a main shaft, an inner stirring assembly, an outer stirring assembly and a transmission assembly; a plurality of groups of stirring plates of the inner stirring assembly; each group of stirring plates comprises a plurality of stirring plates which are obliquely arranged; each group of stirring plates are distributed in a spiral shape, the included angle between each stirring plate and the horizontal plane is gradually reduced from top to bottom, and the distance between two adjacent stirring plates in the vertical direction is gradually reduced from top to bottom. The component force of the stirring thrust provided by the stirring plate for the powder coating particles in the vertical direction increases with the increase of the depth of the powder coating particles so as to push the powder coating particles downwards to the bottom of the mixing drum and then upwards towards the gap between the stirring plate and the mixing drum. Meanwhile, the push plate pushes the powder coating particles pushed to the gap between the stirring plate and the mixing cylinder by the stirring plate upwards, so that the mixing between the upper layer and the lower layer is promoted, and the mixing efficiency of the powder coating particles is improved.

Description

Solid particle mixer

Technical Field

The utility model relates to the technical field of powder coating production, in particular to a solid particle mixer.

Background

The powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler, auxiliary agent and the like. Unlike common solvent paint and water paint, the dispersion medium is not solvent and water, but air, and has the features of no solvent pollution, 100% filming and low power consumption. The powder coating is in the form of powder particles, the particle size of the powder coating is usually 25-55 mu m, and a solid particle mixing device is often needed in processing production.

In the prior art, for example, the Chinese patent with the bulletin number of CN218944996U and the name of a powder coating mixer, in the technical scheme disclosed, the material quantity entering a storage vat is controlled through an inserting plate, and the material flows into an auger inside a frame from the storage vat to be mixed and stirred, but the auger separates the material into a spiral shape, so that when the material is uniformly stirred and mixed, a single stirring force is provided for the material, and the flowing direction of the material flowing and mixing is single, so that the mixing efficiency of the material is influenced.

Disclosure of utility model

The present utility model provides a solid particle mixer to solve the above-mentioned problems.

The utility model adopts the following technical scheme: a solid particle mixer comprising a mixing drum; the mixing drum is vertically arranged; a stirring device is arranged in the mixing drum; the stirring device comprises a main shaft, an inner stirring assembly, an outer stirring assembly and a transmission assembly; the main shaft is coaxially arranged in the mixing drum and rotatably arranged on the mixing drum;

The inner stirring assembly comprises a plurality of groups of stirring plates uniformly distributed along the circumferential direction of the main shaft; each group of stirring plates comprises a plurality of stirring plates which are obliquely arranged; each group of stirring plates are distributed along a spiral shape so as to provide a downward spiral thrust for powder coating particles; the stirring plate is fixed on the main shaft; the included angle between the stirring plate and the horizontal plane is gradually reduced from top to bottom, the distance between two adjacent stirring plates in the vertical direction is gradually reduced from top to bottom, the component force of stirring thrust provided by the stirring plates for powder coating particles in the vertical direction is increased along with the increase of the depth of the powder coating particles, so that larger downward thrust is provided for the powder coating particles at the bottom of the mixing cylinder, and the stirring plates push the powder coating particles near the main shaft downwards to the bottom of the mixing cylinder and then upwards move towards the gap between the stirring plates and the mixing cylinder;

The outer stirring assembly is arranged at the outer side of the inner stirring assembly and comprises a swivel and a plurality of pushing plates; the swivel is rotatably arranged at the upper end of the mixing drum; a plurality of pushing plates are uniformly distributed along the circumferential direction of the main shaft; the push plate is spiral and has the same spiral direction as the stirring plates in the same group; the upper end of the push plate is fixed on the swivel;

The transmission assembly is arranged between the main shaft and the swivel; the transmission assembly is used for enabling the rotating ring to rotate along with the main shaft and simultaneously enabling the rotating direction to be opposite to the rotating direction of the main shaft; thereby drive the push pedal will be pushed by the stirring board to the powder coating granule of the clearance between stirring board and the churn to churn upper end department propelling movement for powder coating granule rotatory mixing in the churn mixes between upper and lower floor, has improved powder coating granule mixing efficiency.

Further, the push plate is an elastic spiral plate, and an auxiliary assembly is arranged at the lower end of the push plate; the auxiliary assembly is used for enabling the pushing plate to periodically compress and store force and release force, enabling the pushing plate to provide downward axial elastic force for the powder coating particles when releasing force and provide circumferential vibration force for the powder coating particles, enabling the pushing plate to provide elastic force on a three-dimensional space for the powder coating particles, disturbing flow of the powder coating particles inside and outside, and improving mixing efficiency.

Further, the auxiliary assembly comprises a matching ring and a matching groove;

A plurality of matching grooves are arranged along the mixing drum; the matching groove is arranged on the inner wall of the mixing cylinder and comprises a force storage section and a force release section; the power storage section is obliquely arranged upwards along the circumferential direction of the mixing drum; the force releasing section is arranged at one side of the upper end of the force accumulating section; the force releasing Duan Shuzhi is arranged, the upper end is communicated with the upper end of the force accumulating section, and the lower end is communicated with the lower end of the adjacent force accumulating section; the matching ring and the main shaft are coaxially arranged and fixed at the lower end of the push plate; a plurality of sliding protrusions which are uniformly distributed along the circumferential direction of the matching ring are fixed on the circumferential wall of the side of the matching ring; the sliding convex is installed in the matching groove in a sliding way. The spindle drives the rotating belt to rotate along the pushing plate through the transmission assembly so as to push the powder coating particles in the gap between the stirring plate and the mixing drum upwards. When the sliding convex edge rises along the force storage section, the pushing plate stores force. Because the push plate is spiral, when the push plate is compressed upwards through the lower end of the push plate, the lower end of the push plate drives the matching ring to move upwards and simultaneously generate circumferential rotation, so that when the push plate is released and stretched by sliding to the force releasing section, the push plate provides axial downward elastic force for powder coating particles when the force is released, and provides circumferential vibration force for the powder coating particles, so that the push plate provides elastic force in a three-dimensional space for the powder coating particles, the flow of the powder coating particles inside and outside is disturbed, and the mixing efficiency is improved.

Further, a buffer groove is arranged at the lower end of the force release section; when the sliding protrusion slides to the force releasing section to enable the push plate to release force and stretch, the sliding protrusion continuously slides down to the buffer groove under the inertia action when sliding to the initial position, so that the push plate continuously generates elastic pushing force to powder coating particles under the inertia action when sliding to the buffer groove, and the mixing of the powder coating particles is promoted.

Further, the drive assembly includes a drive ring; the transmission ring is sleeved on the outer side of the main shaft and is rotatably arranged on the mixing drum; the drive ring and the main shaft are meshed and driven through a reversing gear; the driving ring is fixedly connected with the rotating ring through a connecting rod.

Further, a spiral auxiliary strip is connected between the stirring plate and the main shaft; the auxiliary strip is spiral. For preventing a portion of the powder coating particles from returning from the gap between the spindle and the agitator plate.

Further, the upper end of the main shaft is provided with a power motor. The power motor is fixed on the mixing drum, and the output shaft is fixedly connected with the main shaft.

Further, bristles are arranged at the outer edge of the push plate; the brush hair is abutted with the inner wall of the mixing drum. The device is used for cleaning powder coating particles on the wall of the mixing drum during discharging.

The beneficial effects of the utility model are as follows: the component force of the stirring thrust provided by the stirring plate for the powder coating particles in the vertical direction increases along with the increase of the depth of the powder coating particles so as to provide a larger downward thrust for the powder coating particles at the bottom layer of the mixing cylinder, so that the stirring plate pushes the powder coating particles near the main shaft downwards to the bottom of the mixing cylinder and then upwards moves towards a gap between the stirring plate and the mixing cylinder. Meanwhile, the push plate pushes powder coating particles pushed to a gap between the stirring plate and the mixing drum by the stirring plate to push the powder coating particles to the upper end of the mixing drum, so that the powder coating particles in the mixing drum are mixed in a rotating manner, and meanwhile, the powder coating particles are mixed between the upper layer and the lower layer, so that the mixing efficiency of the powder coating particles is improved.

Further, the spindle drives the rotating belt to rotate against the push plate through the transmission assembly to push up powder coating particles in the gap between the stirring plate and the mixing drum. When the sliding convex edge rises along the force storage section, the pushing plate stores force. Because the push plate is spiral, when the push plate is compressed upwards through the lower end of the push plate, the lower end of the push plate drives the matching ring to move upwards and simultaneously generate circumferential rotation, so that when the push plate is released and stretched by sliding to the force releasing section, the push plate provides axial downward elastic force for powder coating particles when the force is released, and provides circumferential vibration force for the powder coating particles, so that the push plate provides elastic force in a three-dimensional space for the powder coating particles, the flow of the powder coating particles inside and outside is disturbed, and the mixing efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of a solid particle mixer according to the present utility model;

FIG. 2 is a schematic view of a stirring device according to an embodiment of the present utility model;

FIG. 3 is a front view of a stirring device according to an embodiment of the present utility model;

FIG. 4 is a schematic view of another angle of a stirring device according to an embodiment of the present utility model;

fig. 5 is a cross-sectional view of a mixing drum according to an embodiment of the utility model.

In the figure: 100. a mixing drum; 200. a main shaft; 300. a stirring plate; 410. a swivel; 420. a push plate; 500. a transmission assembly; 600. an auxiliary component; 610. a mating ring; 620. a sliding protrusion; 630. a mating groove; 631. a force storage section; 632. a force release section; 633. and a buffer tank.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout or elements having the same or similar functions. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The features of the utility model "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An embodiment of the solid particle mixer of the present utility model is shown in fig. 1 to 5: a solid particle mixer includes a mixing drum 100. The mixing drum 100 is vertically disposed. A stirring device is provided in the mixing drum 100. The stirring device comprises a main shaft 200, an inner stirring assembly, an outer stirring assembly and a transmission assembly 500. The main shaft 200 is coaxially disposed within the mixing drum 100 and rotatably mounted on the mixing drum 100.

The inner stirring assembly includes a plurality of sets of stirring plates 300 uniformly distributed along the circumference of the main shaft 200. Each set of stirring plates 300 comprises a plurality of stirring plates 300 arranged obliquely. Each set of agitator plates 300 is helically distributed to provide a downward helical thrust to the powder coating particles. A spiral auxiliary bar is connected between the stirring plate 300 and the main shaft 200. The auxiliary strip is spiral. For preventing a portion of the powder coating particles from traveling up the gap between the main shaft 200 and the stirring plate 300. The stirring plate 300 is fixed to the main shaft 200. The included angle between the stirring plate 300 and the horizontal plane is gradually reduced from top to bottom, and the distance between two adjacent stirring plates 300 in the vertical direction is gradually reduced from top to bottom, so that the component force of the stirring thrust provided by the stirring plate 300 to the powder coating particles in the vertical direction is increased along with the increase of the depth of the powder coating particles, so as to provide a larger downward thrust to the powder coating particles at the bottom of the mixing drum 100, and the stirring plate 300 is used for pushing the powder coating particles near the main shaft 200 downward to the bottom of the mixing drum 100 and then upwards moving towards the gap between the stirring plate 300 and the mixing drum 100.

The outer stirring assembly is arranged outside the inner stirring assembly and comprises a swivel 410 and a plurality of pushing plates 420. A swivel 410 is rotatably mounted at the upper end of the mixing drum 100. The plurality of push plates 420 are uniformly distributed along the circumference of the main shaft 200. The pusher plate 420 is helical and has the same direction of helix as the same set of agitator plates 300. The upper end of the push plate 420 is fixed to the swivel 410. The push plate 420 is a resilient spiral plate with an auxiliary assembly 600 at the lower end. The auxiliary assembly 600 includes a mating ring 610, a mating groove 630. The fitting groove 630 is provided in plurality along the mixing drum 100. The matching groove 630 is provided on the inner wall of the mixing drum 100 and comprises a power storage section 631 and a power release section 632. The power storage section 631 is disposed obliquely upward along the circumference of the mixing drum 100. The force releasing section 632 is provided on the upper end side of the force accumulating section 631. The force releasing section 632 is vertically arranged, the upper end of the force releasing section 632 is communicated with the upper end of the force accumulating section 631, and the lower end of the force releasing section is communicated with the lower end of the adjacent force accumulating section 631. A buffer slot 633 is provided at the lower end of the force release section 632. The fitting ring 610 and the spindle 200 are coaxially disposed and fixed to the lower end of the push plate 420. A plurality of sliding protrusions 620 are fixed on the peripheral wall of the matching ring 610 and uniformly distributed along the circumferential direction of the matching ring 610. The sliding protrusion 620 is slidably mounted in the mating groove 630. The spindle 200 drives the swivel 410 through the transmission assembly 500 to rotate with the push plate 420 to push up powder coating particles in the gap between the agitator plate 300 and the mixing drum 100. As the slider 620 rises along the force accumulation section 631, the push plate 420 accumulates force. Because the push plate 420 is spiral, when the push plate 420 is compressed upwards through the lower end of the push plate 420, the lower end of the push plate 420 drives the matching ring 610 to move upwards and simultaneously generate circumferential rotation, so that when the sliding protrusion 620 slides to the force releasing section 632 to release force and extend the push plate 420, the push plate 420 provides an axially downward elastic force for the powder coating particles during force release, and provides a circumferential vibration force for the powder coating particles, so that the push plate 420 provides an elastic force in a three-dimensional space for the powder coating particles, the flow of the powder coating particles inside and outside is disturbed, and the mixing efficiency is improved. When the sliding protrusion 620 slides to the force releasing section 632 to enable the push plate 420 to release force and extend, the buffer groove 633 enables the sliding protrusion 620 to slide past the initial position, and then to slide down into the buffer groove 633 under the action of inertia, so that the push plate 420 continues to generate elastic pushing force to powder coating particles under the action of inertia in the sliding process of the sliding protrusion 620 in the buffer groove 633, and mixing of the powder coating particles is promoted.

The transmission assembly 500 is provided between the main shaft 200 and the swivel 410. The transmission assembly 500 is used to rotate the swivel 410 with the spindle 200 in a direction opposite to the spindle 200. Thereby driving the push plate 420 to push the powder coating particles pushed by the stirring plate 300 to the gap between the stirring plate 300 and the mixing drum 100 to the upper end of the mixing drum 100, so that the powder coating particles in the mixing drum 100 are mixed in a rotating way and simultaneously between the upper layer and the lower layer, and the mixing efficiency of the powder coating particles is improved.

In this embodiment, the drive assembly 500 includes a drive ring. The drive ring is sleeved outside the main shaft 200 and rotatably mounted on the mixing drum 100. The drive ring and the main shaft 200 are engaged and driven through reversing gears. The drive ring and the swivel 410 are fixedly connected by a connecting rod. The upper end of the main shaft 200 is provided with a power motor. The power motor is fixed on the mixing drum 100, and the output shaft is fixedly connected with the main shaft 200. The outer edge of the push plate 420 is provided with bristles. The bristles abut the inner wall of the mixing drum 100. For cleaning powder coating particles from the walls of the mixing drum 100 during discharge.

In combination with the above embodiment, the use principle and working process of the present utility model are as follows: when powder coating particles are mixed, the power motor is started to drive the spindle 200 to rotate. The spindle 200 drives the stirring plate 300 to rotate, and simultaneously drives the push plate 420 to rotate around the axis of the spindle 200 and in the opposite direction to the rotation direction of the stirring plate 300 through the transmission assembly 500. In this process, the spindle 200 drives the swivel 410 to rotate with the push plate 420 through the transmission assembly 500 to push up powder paint particles in the gap between the stirring plate 300 and the mixing drum 100. As the slider 620 rises along the force accumulation section 631, the push plate 420 accumulates force. Because the push plate 420 is spiral, when the push plate 420 is compressed upwards through the lower end of the push plate 420, the lower end of the push plate 420 drives the matching ring 610 to move upwards and simultaneously generate circumferential rotation, so that when the sliding protrusion 620 slides to the force releasing section 632 to release force and extend the push plate 420, the push plate 420 provides an axially downward elastic force for the powder coating particles during force release, and provides a circumferential vibration force for the powder coating particles, so that the push plate 420 provides an elastic force in a three-dimensional space for the powder coating particles, the flow of the powder coating particles inside and outside is disturbed, and the mixing efficiency is improved.

Further, in the process that the sliding protrusion 620 slides to the force releasing section 632 to enable the push plate 420 to release force and extend, when the sliding protrusion 620 slides over the initial position, the sliding protrusion continues to slide down into the buffer slot 633 under the action of inertia, so that the push plate 420 continues to generate elastic pushing force to the powder coating particles under the action of inertia in the process that the sliding protrusion 620 slides in the buffer slot 633, and mixing of the powder coating particles is promoted.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A solid particle mixer, characterized by: comprises a mixing drum (100); the mixing drum (100) is vertically arranged; a stirring device is arranged in the mixing drum (100); the stirring device comprises a main shaft (200), an inner stirring assembly, an outer stirring assembly and a transmission assembly (500); the main shaft (200) is coaxially arranged in the mixing drum (100) and is rotatably arranged on the mixing drum (100);

The inner stirring assembly comprises a plurality of groups of stirring plates (300) which are uniformly distributed along the circumference of the main shaft (200); each set of stirring plates (300) comprises a plurality of stirring plates (300) arranged obliquely; each group of stirring plates (300) is distributed along a spiral shape; the stirring plate (300) is fixed on the main shaft (200); the included angle between each stirring plate (300) and the horizontal plane is gradually reduced from top to bottom, and the distance between two adjacent stirring plates (300) in the vertical direction is gradually reduced from top to bottom;

The outer stirring assembly is arranged outside the inner stirring assembly and comprises a swivel (410) and a plurality of pushing plates (420); the swivel (410) is rotatably arranged at the upper end of the mixing drum (100); a plurality of push plates (420) are uniformly distributed along the circumferential direction of the main shaft (200); the push plate (420) is spiral and has the same spiral direction as the same group of stirring plates (300); the upper end of the push plate (420) is fixed on the swivel (410);

the transmission assembly (500) is arranged between the main shaft (200) and the swivel (410); the transmission assembly (500) is used for enabling the rotating ring (410) to rotate along with the main shaft (200) and simultaneously enabling the rotating direction to be opposite to the rotating direction of the main shaft (200).

2. A solid particulate mixer according to claim 1, wherein: the push plate (420) is an elastic spiral plate, and an auxiliary assembly (600) is arranged at the lower end of the push plate; the auxiliary assembly (600) is used for enabling the pushing plate (420) to periodically compress and store and release force, enabling the pushing plate (420) to provide downward axial impact force for the powder coating particles when releasing force and provide circumferential vibration force for the powder coating particles.

3. A solid particulate mixer according to claim 2, wherein: the auxiliary assembly (600) comprises a matching ring (610) and a matching groove (630); the matching groove (630) is provided with a plurality of matching grooves along the mixing drum (100); the matching groove (630) is arranged on the inner wall of the mixing drum (100) and comprises a force storage section (631) and a force release section (632); the power storage section (631) is obliquely arranged upwards along the circumferential direction of the mixing drum (100); the force releasing section (632) is arranged at one side of the upper end of the force accumulating section (631); the force releasing section (632) is vertically arranged, the upper end of the force releasing section is communicated with the upper end of the force accumulating section (631), and the lower end of the force accumulating section is communicated with the lower end of the adjacent force accumulating section (631);

the matching ring (610) and the main shaft (200) are coaxially arranged and fixed at the lower end of the push plate (420); a plurality of sliding protrusions (620) which are uniformly distributed along the circumferential direction of the matching ring (610) are fixed on the side circumferential wall of the matching ring (610); the sliding protrusion (620) is slidably mounted in the mating groove (630).

4. A solid particulate mixer according to claim 3, wherein: a buffer groove (633) is arranged at the lower end of the force releasing section (632).

5. A solid particulate mixer according to claim 1, wherein: the transmission assembly (500) includes a transmission ring; the transmission ring is sleeved on the outer side of the main shaft (200) and is rotatably arranged on the mixing drum (100); the drive ring and the main shaft (200) are meshed and driven through a reversing gear; the driving ring and the rotating ring (410) are fixedly connected through a connecting rod.

6. A solid particulate mixer according to claim 1, wherein: a spiral auxiliary strip is connected between the stirring plate (300) and the main shaft (200); the auxiliary strip is spiral.

7. A solid particulate mixer according to claim 1, wherein: the upper end of the main shaft (200) is provided with a power motor; the power motor is fixed on the mixing drum (100), and the output shaft is fixedly connected with the main shaft (200).

8. A solid particulate mixer according to claim 1, wherein: the outer edge of the push plate (420) is provided with brush hair; the brush hair is abutted against the inner wall of the mixing drum (100).