Adjustable grid for dry powder feeding

Abstract

The application relates to an adjustable grid for dry powder feeding and belongs to the technical field of paint production equipment, which comprises a fixed frame and a rotating ring, a fixed ring is fixedly connected in the fixed frame, a plurality of first grid rods arranged in a linear array are fixedly connected in the fixed ring, an adjusting mechanism is rotatably connected in the mounting hole, a plurality of second grid rods arranged in a linear array are fixedly connected at the bottom end in the rotating ring, and a toothed disc is fixedly connected at the bottom end of the rotating ring. When the angle between the first grid and the second grid needs to be adjusted, only the adjusting mechanism needs to be operated, the rotating ring is driven to rotate through the transmission of the adjusting mechanism and the toothed disc, the mesh size formed by the first grid and the second grid is changed, the adaptation to dry powder raw materials of different specifications is realized, the grid does not need to be disassembled in the whole adjusting process, the downtime is shortened, the operation process is simplified, the production efficiency is effectively improved, and the effect of adapting to the needs of different dry powder feeding is achieved.

Description

Technical Field

[0001] This application relates to the field of coating production equipment technology, and in particular to an adjustable grid for dry powder feeding. Background Technology

[0002] Dry powder raw materials are often needed in the coating production process. These raw materials need to be put into different equipment for processing and use. The dry powder raw materials are usually produced in advance and stored in storage tanks. The storage tanks facilitate the transportation and use of the dry powder raw materials.

[0003] However, most existing dry powder feeding screens do not have adjustment devices, which means that the screen can only adapt to one feeding requirement. When changing to different specifications of raw materials, the machine needs to be stopped to disassemble and replace the corresponding screen according to different requirements, which increases the complexity of the operation process and downtime, resulting in reduced production efficiency. Utility Model Content

[0004] The purpose of this application is to provide an adjustable grid for dry powder feeding, which has the advantage of being easy to adjust the angle between the grids to adapt to different feeding needs. This solves the problem that most existing dry powder feeding grids do not have an adjustment device, which means that the grid can only adapt to one feeding need. When changing to different specifications of raw materials, the machine needs to be stopped to disassemble and replace the corresponding grid according to different needs, which increases the complexity of the operation process and downtime, resulting in reduced production efficiency.

[0005] The adjustable grid for dry powder feeding provided in this application adopts the following technical solution: An adjustable grid for dry powder feeding includes a fixed frame and a rotating ring. The fixed frame is fixedly connected to the fixed ring, and a plurality of first grid rods arranged in a linear array are fixedly connected to the fixed ring. The fixed frame has an installation groove inside, a sliding groove is provided on the inner wall of the fixed frame, and an installation hole is provided on one side of the outer wall of the fixed frame. An adjustment mechanism is rotatably connected inside the installation hole.

[0006] The bottom of the rotating ring is fixedly connected to a plurality of second grid bars arranged in a linear array, and the bottom of the rotating ring is fixedly connected to a toothed disc.

[0007] By adopting the above technical solution, a fixed ring with a first grid bar is set inside the fixed frame, and a rotating ring with a second grid bar is rotatably set in the sliding groove of the fixed frame. The adjustment mechanism in the mounting hole on the outer wall of the fixed frame meshes with the toothed disc at the bottom of the rotating ring. When it is necessary to adjust the angle between the first grid bar and the second grid bar, simply operate the adjustment mechanism. The rotation of the rotating ring is driven by the transmission between the adjustment mechanism and the toothed disc, so that the angle of the second grid bar on the rotating ring relative to the first grid bar on the fixed ring changes. This changes the size of the mesh formed by the intersection of the first grid bar and the second grid bar, thus adapting to different specifications of dry powder raw materials. The entire adjustment process does not require disassembling the grid bar, shortens downtime, simplifies the operation process, effectively improves production efficiency, and adapts to the needs of different dry powder feeding.

[0008] Preferably, the upper ends of the plurality of second grid bars are provided with chamfers on both sides.

[0009] By adopting the above technical solution, when the dry powder raw material falls from above onto the grid, the upper end of the second grid bar forms a triangular structure due to the chamfering on both sides. This prevents the raw material from accumulating when it comes into contact with the grid bar. Instead, it slides smoothly along the inclined direction of the chamfer into the mesh formed by the intersection of the first and second grid bars, thus avoiding the accumulation of raw material at the top of the grid bar and preventing material waste.

[0010] Preferably, the outer wall of the mounting groove is rotatably connected to a plurality of support wheels arranged in a circular array.

[0011] By adopting the above technical solution, multiple support wheels arranged in a ring array are rotatably connected to the outer wall of the mounting groove. The support wheels, through the ring array layout, form a support for the rotating ring. When the gear disc is driven by the adjustment mechanism to drive the rotating ring to rotate, so as to adjust the angle between the second grid bar and the first grid bar, rolling friction is generated between the bottom end of the rotating ring and the support wheels, which makes the rotation process of the rotating ring smoother and more stable.

[0012] Preferably, the adjustment mechanism includes a rotating shaft, one end of which is fixedly connected to a gear, the end of which is fixedly connected to a handle away from the gear, and a crank handle fixedly connected to one side of the handle surface.

[0013] By adopting the above technical solution, the adjustment mechanism consists of a rotating shaft, gears, a throttle, and a crank. Through its coordinated action with the fixed frame, rotating ring, and gear disc, it enables convenient adjustment of the angle between the first and second grids. When it is necessary to adjust the intersection angle between the first and second grids to change the mesh size, the operator does not need to disassemble any parts. He only needs to hold the crank and turn it, which drives the rotating shaft to rotate in the mounting hole. The gear at one end of the rotating shaft rotates along with it, and the meshing transmission between the gear and the gear disc drives the rotating ring to rotate in the groove of the fixed frame, ultimately realizing the change of the angle between the second grid and the first grid.

[0014] Preferably, the rotating shaft is rotatably disposed inside the mounting hole, and the gear is rotatably disposed inside the mounting groove.

[0015] By adopting the above technical solution, the mounting hole provides precise positioning for the shaft, allowing the shaft to remain stable during rotation and avoiding jamming or shaking during adjustment due to shaft offset. This ensures that the shaft can smoothly drive the gear to rotate when the operator turns the handle.

[0016] Preferably, the outer wall of the gear meshes with the gear disk.

[0017] By adopting the above technical solution, when the operator drives the throttle and the shaft to rotate by cranking the handle, the gear at one end of the shaft will rotate accordingly. Since the outer wall of the gear meshes with the toothed disc at the bottom of the rotating ring, the rotational force of the gear will be converted into the power to drive the toothed disc to rotate, thereby driving the entire rotating ring to rotate in the groove of the fixed frame.

[0018] Preferably, the rotating ring is rotatably disposed inside the slide groove, and the plurality of second grid rods are rotatably disposed on the upper end of the first grid rod.

[0019] By adopting the above technical solution, the chute provides the rotating ring with a circular rotation trajectory and radial limit, so that when the rotating ring is driven by the adjustment mechanism, it always rotates smoothly along a fixed path, avoiding deviation or shaking. When the rotating ring drives the second grid to rotate, the second grid will change angle relative to the first grid fixed below. This cross-layout of upper and lower layers will not cause the two sets of grids to collide and interfere when rotating, and the size of the mesh formed by the cross can be precisely adjusted by changing the angle to adapt to different dry powder raw materials.

[0020] Preferably, the outer walls of the plurality of support wheels are in contact with the bottom end of the rotating ring.

[0021] By adopting the above technical solution, the support wheels are rotatably connected to the outer wall of the mounting groove in a ring array. The outer wall of the support wheels contacts the bottom of the rotating ring, forming a multi-point support for the rotating ring. When the rotating ring rotates along the slide groove under the drive of the adjustment mechanism, the support wheels will rotate synchronously with the rotation of the rotating ring, converting the sliding friction between the rotating ring and the mounting groove into rolling friction, reducing the resistance of the rotating ring during rotation, and making the rotation of the rotating ring smoother and less strenuous.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This adjustable grid for dry powder feeding uses a fixed ring with a first grid bar and a rotating ring with a second grid bar within a fixed frame. The angle between the first and second grid bars is flexibly adjusted via the meshing transmission of an adjusting mechanism and a gear disc. When the crank of the adjusting mechanism is operated, it drives the rotating shaft and gear to rotate. The gear meshes with the gear disc at the bottom of the rotating ring, driving the rotating ring to rotate along the slide groove of the fixed frame. This causes the angle between the second grid bar and the first grid bar to change, thereby altering the size of the mesh formed by the intersection. It can adapt to different specifications of dry powder raw materials without disassembly or replacement. Simultaneously, the chamfer at the upper end of the second grid bar forms a triangular structure, guiding the material smoothly into the mesh and preventing accumulation and waste. The support wheel in the mounting groove contacts the bottom of the rotating ring, converting sliding friction into rolling friction. Combined with the limiting effect of the slide groove, this ensures smooth and stable rotation of the rotating ring. The stable rotation of the shaft in the mounting hole and the rotation of the gear in the mounting groove guarantee the stability of the adjustment process. This device simplifies the operation process, making adjustment more convenient, thereby reducing downtime and improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the fixed frame structure of this application;

[0026] Figure 3 This is a schematic diagram of the rotating ring structure of this application;

[0027] Figure 4 This is an overall structural cross-sectional view of the structure in this application;

[0028] Figure 5 This is a schematic diagram of the adjustment mechanism structure of this application;

[0029] Figure 6 This is a schematic diagram of the internal structure of the fixed frame in this application.

[0030] Figure 7 This is a schematic diagram of the structure after the rotating ring of this application has been adjusted.

[0031] In the picture:

[0032] 1. Fixed frame; 2. Fixed ring; 3. First grid rod; 4. Mounting groove; 5. Slide groove; 6. Mounting hole; 7. Adjustment mechanism; 701. Rotating shaft; 702. Gear; 703. Turn handle; 704. Crank handle; 8. Rotating ring; 9. Second grid rod; 10. Chamfer; 11. Gear plate; 12. Support wheel. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7This application will be described in further detail below.

[0034] Example 1: An adjustable grid for dry powder feeding, referring to... Figure 1 , Figure 2 and Figure 3 The device includes a fixed frame 1 and a rotating ring 8. A fixed ring 2 is fixedly connected inside the fixed frame 1. Multiple first grid rods 3 arranged in a linear array are fixedly connected inside the fixed ring 2. The multiple first grid rods 3 are fixed inside the fixed ring 2 to fix their positions. An installation groove 4 is opened inside the fixed frame 1. A sliding groove 5 is opened on the inner wall of the fixed frame 1. The sliding groove 5 is set to provide stable rotation guidance for the rotating ring 8. An installation hole 6 is opened on one side of the outer wall of the fixed frame 1. An adjustment mechanism 7 is rotatably connected inside the installation hole 6. Multiple second grid rods 9 arranged in a linear array are fixedly connected to the bottom of the rotating ring 8. The multiple second grid rods 9 will rotate together with the rotating ring 8. A gear disk 11 is fixedly connected to the bottom of the rotating ring 8. The gear disk 11 is used to cooperate with the adjustment mechanism 7. The adjustment mechanism 7 drives the gear disk 11 to rotate, thereby driving the rotating ring 8 to rotate.

[0035] Example 2: An adjustable grid for dry powder feeding, referring to... Figure 3 , Figure 4 and Figure 5Multiple second grid bars 9 have chamfers 10 on both sides of their upper ends. When dry powder raw materials fall from above onto the grid, the upper ends of the second grid bars 9 form a triangular structure due to the chamfers 10 on both sides. This prevents the raw materials from accumulating when they come into contact with the grid bars, and instead allows them to slide smoothly along the inclined direction of the chamfers 10 into the mesh formed by the intersection of the first and second grids. This avoids the raw materials accumulating at the top of the grid bars, thus preventing material waste. Multiple support wheels 12 arranged in a circular array are rotatably connected to the outer wall of the mounting groove 4. These support wheels 12, through their circular array layout, provide support for the rotating ring 8. When passing through… The adjusting mechanism 7 drives the gear disc 11, which in turn drives the rotating ring 8 to rotate. When adjusting the angle between the second grid rod 9 and the first grid rod 3, rolling friction is generated between the bottom end of the rotating ring 8 and the support wheel 12, which makes the rotation process of the rotating ring 8 smoother and more stable. The adjusting mechanism 7 includes a rotating shaft 701, one end of which is fixedly connected to a gear 702, and the other end of the rotating shaft 701 away from the gear 702 is fixedly connected to a handle 703. A crank handle 704 is fixedly connected to one side of the surface of the handle 703. The adjusting mechanism 7 is composed of a rotating shaft 701, a gear 702, a handle 703, and a crank handle 704. Through its cooperation with the fixed frame 1, the rotating ring 8, and the gear disc 11, the first grid is realized. The angle between the first and second grids is easily adjustable. When it is necessary to adjust the intersection angle between the first grid rod 3 and the second grid rod 9 to change the mesh size, the operator does not need to disassemble any parts. Simply hold the crank handle 704 and turn it, which drives the rotating shaft 701 to rotate within the mounting hole 6. The gear 702 at one end of the rotating shaft 701 rotates along with it. The meshing transmission between the gear 702 and the gear disc 11 drives the rotating ring 8 to rotate within the sliding groove 5 of the fixed frame 1, ultimately achieving the angle change of the second grid rod 9 relative to the first grid rod 3. The rotating shaft 701 is rotatably mounted inside the mounting hole 6, and the gear 702 is rotatably mounted inside the mounting groove 4. The mounting hole 6 provides precise positioning for the rotating shaft 701. The positioning ensures that the rotating shaft 701 remains stable during rotation, preventing jamming or shaking during adjustment due to shaft 701 offset. This ensures that when the operator turns the handle 703, the rotating shaft 701 can smoothly drive the gear 702 to rotate. The outer wall of the gear 702 meshes with the gear plate 11. When the operator turns the handle 704 to drive the handle 703 and the rotating shaft 701, the gear 702 at one end of the rotating shaft 701 rotates accordingly. Since the outer wall of the gear 702 meshes with the gear plate 11 at the bottom of the rotating ring 8, the rotational force of the gear 702 is converted into the power to drive the gear plate 11 to rotate, thereby driving the entire rotating ring 8 to rotate within the slide groove 5 of the fixed frame 1.

[0036] Reference Figure 4 , Figure 6 and Figure 7The rotating ring 8 is rotatably mounted inside the slide groove 5, and multiple second grid rods 9 are rotatably mounted on the upper end of the first grid rod 3. The slide groove 5 provides the rotating ring 8 with a circular rotation trajectory and radial limit, so that when the rotating ring 8 rotates under the drive of the adjusting mechanism 7, it always rotates smoothly along a fixed path, avoiding deviation or shaking. When the rotating ring 8 drives the second grid rods 9 to rotate, the second grid rods 9 will change angle relative to the fixed first grid rod 3 below. This upper and lower layer cross layout will not cause the two sets of grid rods to collide and interfere during rotation, and can also accurately adjust the cross by changing the angle. The mesh size is adapted to different dry powder raw materials. The outer walls of multiple support wheels 12 are in contact with the bottom of the rotating ring 8. The support wheels 12 are connected to the outer wall of the mounting groove 4 in a ring array. Their outer walls are in contact with the bottom of the rotating ring 8, forming a multi-point support for the rotating ring 8. When the rotating ring 8 rotates along the slide groove 5 under the drive of the adjusting mechanism 7, the support wheels 12 will rotate synchronously with the rotation of the rotating ring 8, converting the sliding friction between the rotating ring 8 and the mounting groove 4 into rolling friction, reducing the resistance of the rotating ring 8 when rotating, and making the rotation of the rotating ring 8 smoother and less labor-intensive.

[0037] The implementation principle of this application embodiment is as follows:

[0038] When adjusting the mesh aperture, the operator does not need to disassemble any parts. Simply hold the crank 704 of the adjustment mechanism 7 and rotate it. The crank 704 drives the rotating handle 703 to rotate synchronously. The rotating handle 703 then drives the rotating shaft 701 to rotate stably within the mounting hole 6 of the fixed frame 1. The mounting hole 6 provides precise positioning for the rotating shaft 701, preventing it from shifting. As the rotating shaft 701 rotates, it drives the gear 702 to rotate. The gear 702 is located within the mounting groove 4 of the fixed frame 1 and meshes with the gear disc 11 at the bottom of the rotating ring 8. The rotational force of the gear 702 is converted into the power to drive the gear disc 11 to rotate, thereby causing the rotating ring 8 to rotate along the sliding groove 5 on the inner wall of the fixed frame 1. The sliding groove 5 provides the rotating ring 8 with a circular rotation trajectory and radial limit, ensuring that the rotating ring 8 always moves smoothly along a fixed path. Simultaneously, the support wheels 12, arranged in a circular array on the outer wall of the mounting groove 4, contact the bottom of the rotating ring 8. During the rotation of the rotating ring 8, the support wheels 12 rotate synchronously with it. The sliding friction between the rotating ring 8 and the mounting groove 4 is converted into rolling friction, reducing the rotational resistance of the rotating ring 8 and making its rotation smoother and less strenuous. Multiple second grid rods 9 fixed at the bottom of the rotating ring 8 will rotate together with the rotating ring 8. Since the second grid rods 9 are rotatably set on the upper end of the first grid rod 3 of the fixed ring 2, the two form an upper and lower layer layout, and there will be no collision or interference during rotation. Moreover, the angle of the second grid rod 9 relative to the first grid rod 3 will gradually change with the rotation of the rotating ring 8, thereby changing the size of the mesh formed by the intersection of the first grid rod 3 and the second grid rod 9 to adapt to the specifications of the dry powder raw materials to be fed. When the dry powder raw materials fall from above, the chamfers 10 on both sides of the upper end of the second grid rod 9 form a triangular structure, which can guide the raw materials to slide smoothly along the inclined direction of the chamfers 10 to the intersecting mesh, avoiding the accumulation of raw materials at the top of the second grid rod 9 and causing waste. This device can flexibly adjust the mesh aperture without stopping the machine, and efficiently complete the operation requirements of feeding dry powder of different specifications.

Claims

1. An adjustable grid for dry powder feeding, comprising a fixed frame (1) and a rotating ring (8), characterized in that: The fixed frame (1) is fixedly connected to a fixed ring (2), and the fixed ring (2) is fixedly connected to a plurality of first grid rods (3) arranged in a linear array. The fixed frame (1) is provided with an installation groove (4), the inner wall of the fixed frame (1) is provided with a sliding groove (5), and the outer wall of the fixed frame (1) is provided with an installation hole (6). The installation hole (6) is rotatably connected to an adjustment mechanism (7). The rotating ring (8) has multiple second grid bars (9) arranged in a linear array fixedly connected to its bottom end, and a toothed disc (11) is fixedly connected to its bottom end.

2. The adjustable grid for dry powder feeding according to claim 1, characterized in that: The upper ends of the multiple second grid bars (9) are provided with chamfers (10) on both sides.

3. The adjustable grid for dry powder feeding according to claim 1, characterized in that: The outer wall of the mounting groove (4) is rotatably connected to a plurality of support wheels (12) arranged in a ring array.

4. The adjustable grid for dry powder feeding according to claim 1, characterized in that: The adjustment mechanism (7) includes a rotating shaft (701), one end of which is fixedly connected to a gear (702), and the other end of the rotating shaft (701) away from the gear (702) is fixedly connected to a throttle (703), and a crank handle (704) is fixedly connected to one side of the surface of the throttle handle (703).

5. The adjustable grid for dry powder feeding according to claim 4, characterized in that: The rotating shaft (701) is rotatably disposed inside the mounting hole (6), and the gear (702) is rotatably disposed inside the mounting groove (4).

6. The adjustable grid for dry powder feeding according to claim 4, characterized in that: The outer wall of the gear (702) meshes with the gear disc (11).

7. The adjustable grid for dry powder feeding according to claim 1, characterized in that: The rotating ring (8) is rotatably disposed inside the slide groove (5), and a plurality of second grid rods (9) are rotatably disposed on the upper end of the first grid rod (3).

8. The adjustable grid for dry powder feeding according to claim 3, characterized in that: The outer walls of the multiple support wheels (12) are in contact with the bottom end of the rotating ring (8).

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