A powder delivery tube for preventing powder accumulation

Abstract

The present application relates to the technical field of printing equipment, and specifically discloses a powder-accumulation-proof powder delivery cylinder, which includes a cylinder, a shell, and an elastic rope, wherein a first rotating ring is rotatably provided on the inner wall of the cylinder, the shell is detachably provided at the powder inlet of the cylinder, a second rotating ring is rotatably provided on the inner wall of the shell, and both ends of the elastic rope are respectively connected to the first rotating ring and the second rotating ring. The present application has the effect of improving the problem that the existing powder delivery cylinder is prone to powder accumulation.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to an anti-powder accumulation type powder feeding cylinder. Background Art

[0002] In the field of printer technology, the powder delivery system is one of the key components to achieve the printing function. As the core component of the system, the powder delivery cylinder is responsible for transporting the powder material from the storage area to the printing area.

[0003] However, during the long-term operation of the traditional powder delivery cylinder, the powder will accumulate inside the cylinder, which will easily affect the printing quality and efficiency. The accumulation phenomenon will not only lead to poor powder delivery and affect the working efficiency of the printer, but also may cause the print head to be blocked, thus affecting the printing quality, increasing maintenance costs, and even shortening the service life of the printer. Summary of the invention

[0004] In order to improve the problem that the existing powder feeding cylinder is prone to powder accumulation, the present application provides an anti-powder accumulation type powder feeding cylinder.

[0005] The anti-powder accumulation type powder delivery cylinder provided in this application adopts the following technical solution:

[0006] A powder-accumulation-proof powder-feeding cylinder, comprising:

[0007] The cylinder has a first rotating ring rotatably arranged on the inner wall;

[0008] The shell is detachably arranged at the powder inlet of the cylinder, and a second rotating ring is rotatably arranged on the inner wall;

[0009] An elastic rope, two ends of which are respectively connected to the first rotating ring and the second rotating ring.

[0010] By adopting the above technical solution, the rotating ring and the elastic rope interact with each other to drive the elastic rope to move and contact the powder, thereby promoting the flow and dispersion of the powder, thereby reducing the stagnation and accumulation of powder in the cylinder, and further promoting the circulation of powder inside the powder cylinder, reducing the natural deposition of powder in the cylinder due to gravity, and improving the problem of easy powder accumulation in the existing powder feeding cylinder.

[0011] Preferably, the cross-sectional shape of the elastic rope is circular.

[0012] By adopting the above technical solution, when the elastic rope with a circular cross-section is subjected to tension or compression, its internal stress distribution is more uniform, which helps to improve the durability and service life of the elastic rope; when the elastic rope with a circular cross-section rotates, its surface has a larger contact area with the powder, which helps to reduce the accumulation of powder on the surface of the elastic rope and improve the problem of easy powder accumulation in the existing powder feeding barrel.

[0013] Preferably, the first rotating ring is arranged at an end of the cylinder away from the powder inlet, the outer wall of the first rotating ring is slidably connected to the inner wall of the cylinder, and the side of the first rotating ring close to the powder inlet is detachably connected to one end of the elastic rope.

[0014] By adopting the above technical solution, the outer wall of the first rotating ring and the inner wall of the cylinder are connected by sliding, so that the first rotating ring can rotate freely in the cylinder, thereby driving one end of the elastic rope to move freely in the cylinder, ensuring the contact between the elastic rope and the powder.

[0015] Preferably, the first rotating ring is hollow, and a weight is fixedly disposed inside the first rotating ring.

[0016] By adopting the above technical solution, the weighted object can cause the first rotating ring to quickly return to its initial position after rotation, thereby resetting the elastic rope.

[0017] Preferably, the second rotating ring is arranged at an end of the shell away from the powder inlet, the outer wall of the second rotating ring is slidably connected to the inner wall of the shell, and the side of the second rotating ring away from the powder inlet is detachably connected to one end of the elastic rope.

[0018] By adopting the above technical solution, the outer wall of the second rotating ring and the inner wall of the cylinder are connected by sliding, so that the second rotating ring can rotate freely in the cylinder, thereby driving the other end of the elastic rope to move freely in the cylinder, further ensuring the contact between the elastic rope and the powder.

[0019] Preferably, the second rotating ring is hollow, and a weight is fixedly disposed inside the second rotating ring.

[0020] By adopting the above technical solution, the weighted object can cause the second rotating ring to quickly return to its initial position after rotation, thereby resetting the elastic rope.

[0021] Preferably, it further comprises a load-bearing ring, wherein the load-bearing ring is arranged in the cylinder, and the inner wall of the load-bearing ring is fixedly connected to the outer wall of the elastic rope.

[0022] By adopting the above technical solution, the load-bearing ring can limit the position of the elastic rope and ensure the contact between the elastic rope and the powder.

[0023] Preferably, the inner diameter of the load-bearing ring is larger than the diameter of the elastic rope.

[0024] By adopting the above technical solution, the load-bearing ring can contact the powder when the elastic rope moves, further scatter the powder, and reduce the local accumulation of powder in the powder tube.

[0025] Preferably, a limiting column is provided on the inner wall of the cylinder, and the limiting column is used to contact the elastic rope.

[0026] By adopting the above technical solution, when the cylinder rotates, the limiting column moves with the rotation of the cylinder and contacts the elastic rope, thereby changing the position of the elastic rope and ensuring the contact between the elastic rope and the powder.

[0027] Preferably, the limiting column is provided with a slope surface, and the slope surface is used to contact the elastic rope.

[0028] By adopting the above technical solution, the slope provides guidance for the elastic rope and further ensures the contact between the elastic rope and the powder.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The rotating ring and the elastic rope interact with each other to drive the elastic rope to move and contact the powder, promote the flow and dispersion of the powder, thereby reducing the stagnation and accumulation of powder in the cylinder, and further promote the circulation of powder inside the powder cylinder, reducing the situation where the powder is naturally deposited in the cylinder due to gravity, and improving the problem of easy powder accumulation in the existing powder feeding cylinder;

[0031] 2. When the elastic rope with a circular cross-section is subjected to tension or compression, its internal stress distribution is more uniform, which helps to improve the durability and service life of the elastic rope; when the elastic rope with a circular cross-section rotates, its surface has a larger contact area with the powder, which helps to reduce the accumulation of powder on the surface of the elastic rope and improve the problem of easy powder accumulation in the existing powder feeding barrel;

[0032] 3. The outer wall of the first rotating ring and the inner wall of the cylinder are connected by sliding, so that the first rotating ring can rotate freely in the cylinder, thereby driving one end of the elastic rope to move freely in the cylinder, ensuring the contact between the elastic rope and the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of an anti-powder accumulation type powder feeding cylinder in an embodiment of the present application;

[0034] Figure 2 is a front view of the housing in the embodiment of the present application;

[0035] Figure 3 is a schematic diagram of a vertical cross-sectional structure of a second rotating ring in an embodiment of the present application;

[0036] Figure 4 It is a schematic structural diagram of the cylinder in the embodiment of the present application;

[0037] Figure 5 is a schematic diagram of the vertical cross-sectional structure of the straight tube portion in the embodiment of the present application;

[0038] Figure 6is a schematic diagram of a vertical cross-sectional structure of a first rotating ring in an embodiment of the present application;

[0039] Figure 7 This is one of the partial structural schematic diagrams of the anti-powder accumulation type powder feeding cylinder in the embodiment of the present application;

[0040] Figure 8 This is the second partial structural schematic diagram of the anti-powder accumulation type powder feeding cylinder in the embodiment of the present application;

[0041] Fig. 9 It is a schematic diagram of the structure of the limiting column in the embodiment of the present application.

[0042] Explanation of the accompanying drawings: 1. Shell; 2. Cylinder; 21. Powder inlet; 22. Powder outlet; 23. Threaded portion; 24. Straight cylinder portion; 25. Powder delivery channel; 26. Opening; 27. Cylinder cover; 3. Elastic rope; 4. Limiting column; 5. Gear; 6. First rotating ring; 7. Second rotating ring; 8. Weight; 9. Weight ring. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-9 This application is described in further detail.

[0044] The present application embodiment discloses a powder-accumulation-proof powder delivery cylinder, which is applied to printing equipment. Figure 1 The anti-powder accumulation type powder feeding cylinder comprises a shell 1, a cylinder 2, an elastic rope 3, a load-bearing ring 9 and a limiting column 4.

[0045] like Figure 2 and Figure 3 As shown, the shell 1 is arranged at the powder inlet 21 of the cylinder 2 and is detachably connected to the cylinder 2. A gear 5 is arranged on the outer wall of the shell 1. The shell 1 is transmission-connected to the printing device through the gear 5 so that the shell 1 is driven to rotate when the printing device is working; a second rotating ring 7 is arranged on the inner wall of the shell 1, and the second rotating ring 7 is detachably connected to one end of the elastic rope 3.

[0046] Specifically, in the embodiment of the present application, the second rotating ring 7 is arranged on the inner wall of the end of the shell 1 away from the powder inlet 21, and the outer wall of the second rotating ring 7 is slidably connected to the inner wall of the shell 1 by structures including but not limited to dovetail grooves. The outer wall of the second rotating ring 7 and the inner wall of the shell 1 are slidably connected, which allows the second rotating ring 7 to rotate freely in the shell 1, thereby driving one end of the elastic rope 3 to move freely in the shell 1, ensuring that the elastic rope 3 can move and contact with the powder, avoiding powder accumulation at the end of the shell 1 and the cylinder 2 connected to the shell 1, and improving the problem of easy powder accumulation in the existing powder feeding cylinder.

[0047] Please note that, please refer to Figure 3The second rotating ring 7 is hollow, and a weight 8 is fixedly arranged inside the second rotating ring 7. The weight 8 in the embodiment of the present application is a metal block. The weight 8 can make the second rotating ring 7 quickly return to its initial position after rotation, thereby resetting the elastic rope 3.

[0048] like Figure 4 and Figure 5 As shown, the barrel 2 includes a threaded portion 23 and a straight barrel portion 24, the threaded portion 23 is detachably connected to the printing device through a thread, the straight barrel portion 24 and the threaded portion 23 are rotatably arranged, the outer wall of the straight barrel portion 24 is detachably connected to the inner wall of the shell 1, and the straight barrel portion 24 is provided with a powder delivery channel 25 that passes through the straight barrel portion 24, the powder delivery channel 25 at one end of the straight barrel portion 24 close to the outer shell is trumpet-shaped, and the inner diameter of the end of the straight barrel portion 24 close to the shell 1 is smaller than the inner diameter of the end of the straight barrel portion 24 away from the shell 1, so that the powder enters the powder delivery channel 25 at the end away from the shell 1 from the powder delivery channel 25 at the end close to the shell 1; the end with a smaller inner diameter of the powder delivery channel 25 of the straight barrel portion 24 is the powder inlet 21 of the anti-powder accumulation type powder delivery barrel.

[0049] A first rotating ring 6 is provided at the end of the straight cylinder portion 24 away from the powder inlet 21, and the outer wall of the first rotating ring 6 is slidably connected to the straight cylinder portion 24 through structures including but not limited to dovetail grooves, and the side of the first rotating ring 6 close to the powder inlet 21 is detachably connected to the end of the elastic rope 3 away from the shell 1; the outer wall of the first rotating ring 6 and the inner wall of the cylinder 2 are slidably connected, which allows the first rotating ring 6 to rotate freely in the cylinder 2, thereby driving one end of the elastic rope 3 to move freely in the cylinder 2, further ensuring the contact between the elastic rope 3 and the powder, and further improving the problem of easy powder accumulation in the existing powder feeding cylinder.

[0050] like Figure 6 As shown, the first rotating ring 6 is hollow, and a weight 8 is fixedly disposed inside the first rotating ring 6 . The weight 8 can enable the first rotating ring 6 to quickly return to its initial position after rotation, thereby further resetting the elastic rope 3 .

[0051] Specifically, when the shell 1 drives the straight cylinder portion 24 to rotate, the first rotating ring 6, the second rotating ring 7 and the elastic rope 3 interact with each other, driving the elastic rope 3 to move and contact the powder to promote the flow and dispersion of the powder, thereby reducing the stagnation and accumulation of the powder in the cylinder 2, and then promoting the circulation of the powder inside the cylinder 2, reducing the natural deposition of the powder in the cylinder 2 due to gravity, and finally improving the problem of easy powder accumulation in the existing powder feeding cylinder.

[0052] Optionally, the straight cylinder portion 24 is also provided with a powder outlet 22, which is connected to the straight cylinder portion 24, and the powder outlet 22 is arranged opposite to the first rotating ring 6, so that when the user erects the cylinder body 2, the powder in the straight cylinder portion 24 falls into the powder outlet 22 from the first rotating ring 6 and finally separates from the cylinder body 2; the powder outlet 22 of the cylinder body 2 protrudes outward, and the part of the powder outlet 22 protruding from the cylinder body 2 is detachably provided with a cylinder cover 27 to separate the external environment from the interior of the cylinder body 2.

[0053] In the embodiment of the present application, the straight tube portion 24 is provided with a plurality of openings 26 penetrating the straight tube portion 24 , so as to allow powder to move from the inside of the straight tube portion 24 to the outside of the straight tube portion 24 .

[0054] like Figure 7 and Figure 8 As shown, the cross-sectional shape of the elastic rope 3 is circular. When the elastic rope 3 with a circular cross-section is subjected to tension or compression, its internal stress distribution is relatively uniform, which helps to improve the durability and service life of the elastic rope 3. When the elastic rope 3 with a circular cross-section rotates, its surface has a larger contact area with the powder, which helps to reduce the accumulation of powder on the surface of the elastic rope 3, and further improves the problem of easy powder accumulation in the existing powder feeding barrel.

[0055] A plurality of load-bearing rings 9 are provided on the elastic rope 3, and the load-bearing rings 9 are specifically circular insulating rings. Part of the inner wall of the load-bearing ring 9 is fixedly connected to the outer wall of the elastic rope 3, and the inner diameter of the load-bearing ring 9 is larger than the diameter of the elastic rope 3; the load-bearing ring 9 can limit the position of the elastic rope 3, ensure that the elastic rope 3 has a certain drooping tendency, and keep the elastic rope 3 close to the inner wall of the cylinder 2; and when the elastic rope 3 moves, the load-bearing ring 9 can contact with the powder, further scatter the powder, reduce the local accumulation of powder in the powder cylinder, and further improve the problem of easy powder accumulation in the existing powder feeding cylinder.

[0056] Optionally, in another embodiment of the present application, a plurality of grooves are spirally arranged on the inner wall of the straight cylinder portion 24, and the plurality of grooves are used to enable the powder to move better inside the straight cylinder portion 24. At this time, each load ring 9 is staggered with the corresponding groove to avoid interfering with the movement of the powder inside the straight cylinder portion 24.

[0057] like Figure 5 and Figure 8 As shown, in the embodiment of the present application, a limiting column 4 is provided on the inner wall of the cylinder 2, and the limiting column 4 is provided with a slope, and the slope is used to contact the elastic rope 3. When the cylinder 2 rotates, the limiting column 4 moves with the rotation of the cylinder 2 and contacts the elastic rope 3, thereby changing the position of the elastic rope 3 to ensure the contact between the elastic rope 3 and the powder. The slope provides a guide for the elastic rope 3, allowing the elastic rope 3 to swing within a certain range, sweeping the powder on the inner wall of the straight cylinder portion 24 without contacting the inner wall of the straight cylinder portion 24, and further scattering the powder to reduce the local accumulation of powder in the powder cylinder.

[0058] Please refer to Fig. 9 In the embodiment of the present application, the limiting column 4 is a plastic cone, and one end of the limiting column 4 away from the inner wall of the straight tube portion 24 is semicircularly arranged. The limiting column 4 can smoothly guide the elastic rope 3 and reduce the scratching of the elastic rope 3, thereby extending the service life of the elastic rope 3.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A powder-accumulation-proof powder delivery tube, characterized in that: include: The cylinder (2) has a first rotating ring (6) rotatably arranged on the inner wall; The shell (1) is detachably arranged on the powder inlet (21) of the cylinder (2), and a second rotating ring (7) is rotatably arranged on the inner wall; An elastic rope (3), two ends of which are respectively connected to the first rotating ring (6) and the second rotating ring (7); The first rotating ring (6) is arranged at an end of the cylinder (2) away from the powder inlet (21), the outer wall of the first rotating ring (6) is slidably connected to the inner wall of the cylinder (2), and the side of the first rotating ring (6) close to the powder inlet (21) is detachably connected to one end of the elastic rope (3); The second rotating ring (7) is arranged at one end of the shell (1) away from the powder inlet (21), the outer wall of the second rotating ring (7) is slidably connected to the inner wall of the shell (1), and the side of the second rotating ring (7) away from the powder inlet (21) is detachably connected to one end of the elastic rope (3); The first rotating ring (6) is hollow, and a weight (8) is fixedly arranged inside the first rotating ring (6); The second rotating ring (7) is hollow, and a weight (8) is fixedly arranged inside the second rotating ring (7).

2. The anti-powder accumulation type powder feeding cylinder according to claim 1, characterized in that: The cross-sectional shape of the elastic rope (3) is circular.

3. The anti-powder accumulation type powder feeding cylinder according to claim 1, characterized in that: It also comprises a load-bearing ring (9), wherein the load-bearing ring (9) is arranged in the cylinder (2), and the inner wall of the load-bearing ring (9) is fixedly connected to the outer wall of the elastic rope (3).

4. The anti-powder accumulation type powder feeding cylinder according to claim 3, characterized in that: The inner diameter of the load-bearing ring (9) is greater than the diameter of the elastic rope (3).

5. The anti-powder accumulation type powder feeding cylinder according to claim 1, characterized in that: A limiting column (4) is arranged on the inner wall of the cylinder (2), and the limiting column (4) is used to contact the elastic rope (3).

6. The anti-powder accumulation type powder feeding cylinder according to claim 5, characterized in that: The limiting column (4) is provided with a slope surface, and the slope surface is used to contact the elastic rope (3).

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