A metal foreign object removal device for dust removal equipment in a cigarette factory

By using a combination of annular magnetic blocks and negative pressure components in the dust removal equipment of cigarette factories, preliminary and secondary magnetic separation of metallic foreign objects is achieved, solving the problem that existing equipment is difficult to remove metallic foreign objects and improving dust removal efficiency and product quality.

CN224938342UActive Publication Date: 2026-11-06CHINA TOBACCO HENAN IND CO LTD
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Patent Information

Application Number
CN202522370807.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-11-06
Estimated Expiration
2035-11-07

AI Technical Summary

Technical Problem

Existing dust removal equipment in cigarette factories is ineffective at removing metallic foreign objects, leading to equipment damage and a decline in product quality.

Method used

A metal foreign object removal device for dust removal equipment in a cigarette factory was designed. It adopts annular magnetic blocks embedded in the upper and lower shells, combined with a negative pressure component and a filter component, to separate metal foreign objects through gravity and negative pressure airflow, achieving preliminary and secondary magnetic separation.

Benefits of technology

It improves the efficiency of removing metal foreign objects, prevents equipment damage, ensures product quality, and has a simple structure, low cost, and is easy to clean and maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a metal foreign object removal device for a cigarette factory dust removal equipment, comprising: an upper shell, a lower shell, a feed pipe, a filter assembly, a discharge pipe, a fixing assembly, and a negative pressure assembly. Annular magnetic blocks are embedded in the inner walls of both the upper and lower shells. The top of the upper shell is connected to the feed pipe. The filter assembly is positioned between the bottom of the upper shell and the top of the lower shell. The discharge pipe is connected to the bottom of the lower shell. The fixing assembly is connected to the discharge pipe. The negative pressure assembly includes a blower, an exhaust pipe, a flexible hose, and a through pipe. The blower is mounted on the fixing assembly. The outlet end of the blower is connected to the exhaust pipe, the inlet end of the blower is connected to the first end of the flexible hose, the second end of the flexible hose is connected to the first end of the through pipe, and the second end of the through pipe passes through the filter assembly. This utility model can sequentially adsorb metal foreign objects through the annular magnetic blocks on the inner walls of the upper and lower shells, and adsorb dust from the material through the negative pressure assembly, quickly removing impurities from the material and improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of dust removal equipment in cigarette factories, and more specifically, to a metal foreign object removal device for dust removal equipment in cigarette factories. Background Technology

[0002] During cigarette production, foreign objects such as metals can easily get mixed into materials like tobacco leaves and shredded tobacco during collection, transportation, and processing. If these metal foreign objects are not removed in time, they may have many adverse effects on subsequent production stages, such as damaging equipment and affecting product quality.

[0003] While the dust removal equipment in cigarette factories can remove dust and other impurities from the surface of tobacco leaves and shreds to some extent, most of them have complex structures, high manufacturing costs, and are also difficult to remove metal foreign objects.

[0004] Therefore, how to provide a metal foreign object removal device for dust removal equipment in cigarette factories has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a metal foreign object removal device in a cigarette factory dust removal equipment.

[0006] According to a first aspect of the present invention, a metal foreign object removal device for a cigarette factory dust removal equipment is provided, comprising: an upper shell, a lower shell, a feed pipe, a filter assembly, a discharge pipe, a fixing assembly, and a negative pressure assembly;

[0007] Both the upper shell and the lower shell have annular magnetic blocks embedded in their inner walls. The top of the upper shell is connected to the feed pipe. The filter assembly is located between the bottom of the upper shell and the top of the lower shell. The filter assembly is used to filter foreign objects inside the material transported by the feed pipe. The discharge pipe is connected to the bottom of the lower shell. The fixing assembly is connected to the discharge pipe.

[0008] The negative pressure assembly includes an exhaust fan, an air outlet pipe, a flexible hose, and a through pipe. The exhaust fan is mounted on the fixed assembly. The outlet end of the exhaust fan is connected to the air outlet pipe. The inlet end of the exhaust fan is connected to the first end of the flexible hose. The second end of the flexible hose is connected to the first end of the through pipe. The second end of the through pipe passes through the filter assembly.

[0009] Optionally, the negative pressure assembly further includes a vertical pipe and a connecting pipe, the first end of the vertical pipe being connected to the inlet end of the exhaust fan, the second end of the vertical pipe being connected to the first end of the connecting pipe, and the second end of the connecting pipe being connected to the first end of the flexible hose.

[0010] Optionally, the filter assembly includes a housing, an inner housing, an annular hole, and a filter screen. The inner housing is disposed inside the housing, and a gap is formed between the housing and the inner housing. The through-tube passes through the housing, the annular hole is disposed on the inner housing, and the filter screen is disposed within the annular hole.

[0011] Optionally, a top cover is provided above the feed pipe, and the top cover is threadedly connected to the top of the feed pipe.

[0012] Optionally, the inner side of the upper shell and the inner side of the lower shell are provided with mounting grooves, and the annular magnetic block is disposed in the mounting groove, the thickness of the annular magnetic block being the same as the depth of the mounting groove.

[0013] Optionally, the fixing component includes a base plate, and the feeding pipe and the exhaust fan are both mounted on the base plate.

[0014] Optionally, the fixing assembly further includes a support block, a connecting block, and a vertical rod. The support blocks are respectively disposed on the four sides of the outer wall of the feed pipe. The first end of the connecting block is connected to the support block, the second end of the connecting block is perpendicularly connected to the first end of the vertical rod, and the second end of the vertical rod is connected to the base plate.

[0015] Optionally, the fixing component further includes moving wheels and stabilizing blocks. The moving wheels are respectively disposed at the four corners of the bottom of the base plate, and the stabilizing blocks are respectively located on one side of the moving wheels and connected to the base plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention involves pouring processed tobacco leaves or shredded tobacco into a feeding pipe. Under gravity, the material enters the upper shell. The annular magnetic block inside the upper shell first performs magnetic separation on the material, initially removing large-sized metal foreign objects. Then, the exhaust fan is activated to generate negative pressure airflow, which is introduced into the inner shell of the filter assembly through a through-pipe. This causes the material to be conveyed downward with the airflow. After reaching the filter assembly, the material is blocked by the filter screen, and the dust continues to flow with the airflow and is eventually discharged by the exhaust fan, completing the dust removal function. The material is trapped on the surface of the filter screen and continues to fall under gravity. The annular magnetic block inside the lower shell performs secondary magnetic separation on the material, further removing residual metal foreign objects.

[0018] Furthermore, this utility model allows the entire machine to be quickly moved to the required work position via four movable wheels at the bottom of the base plate. With the help of the stabilizing blocks, if the movable wheels break during use, the stabilizing blocks can support the dust removal equipment and prevent it from tipping over. The filter assembly, upper shell, and lower shell are all detachable structures, which facilitates regular cleaning of the filter screen. The annular magnetic block is embedded in the installation groove, with a thickness consistent with the groove depth, making the interior of the upper shell and lower shell flush, which facilitates the cleaning of adsorbed metal foreign objects.

[0019] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a structural diagram of the metal foreign object removal device for the dust removal equipment in a cigarette factory according to this utility model;

[0022] Figure 2 This is a structural diagram of the metal foreign object removal device for the cigarette factory dust removal equipment of this utility model from another angle.

[0023] Figure 3 This is another structural diagram of the metal foreign object removal device for the dust removal equipment in a cigarette factory according to this utility model.

[0024] Figure 4 This is a structural diagram of the fixing component and the negative pressure component of this utility model;

[0025] Figure 5 This is a structural diagram of the filter assembly of this utility model.

[0026] The diagram shows the following components: 1. Upper shell; 2. Lower shell; 3. Feed pipe; 4. Filter assembly; 41. Outer shell; 42. Inner shell; 43. Annular hole; 44. Filter screen; 5. Feed pipe; 6. Fixing assembly; 61. Base plate; 62. Support block; 63. Connecting block; 64. Vertical rod; 65. Casters; 66. Stabilizing block; 7. Negative pressure assembly; 71. Exhaust fan; 72. Exhaust pipe; 73. Flexible hose; 74. Through pipe; 75. Vertical pipe; 76. Connecting pipe; 8. Top cover. Detailed Implementation

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] like Figures 1 to 5 As shown in the figure, this utility model embodiment provides a metal foreign object removal device for a cigarette factory dust removal equipment, including: an upper shell 1, a lower shell 2, a feed pipe 3, a filter assembly 4, a discharge pipe 5, a fixing assembly 6, and a negative pressure assembly 7.

[0032] Both the upper shell 1 and the lower shell 2 are fitted with annular magnetic blocks. The top of the upper shell 1 is connected to the feed pipe 3. The filter assembly 4 is located between the bottom of the upper shell 1 and the top of the lower shell 2. The filter assembly 4 is used to filter foreign objects inside the material transported by the feed pipe 3. The discharge pipe 5 is connected to the bottom of the lower shell 2. The fixing assembly 6 is connected to the discharge pipe 5.

[0033] The negative pressure assembly 7 includes an exhaust fan 71, an air outlet pipe 72, a hose 73, and a through pipe 74. The exhaust fan 71 is mounted on the fixed assembly 6. The outlet end of the exhaust fan 71 is connected to the air outlet pipe 72. The inlet end of the exhaust fan 71 is connected to the first end of the hose 73. The second end of the hose 73 is connected to the first end of the through pipe 74. The second end of the through pipe 74 passes through the filter assembly 4.

[0034] This invention involves pouring processed tobacco leaves or shreds into the feed pipe 3. Under gravity, the material enters the upper shell 1. The annular magnetic block inside the upper shell 1 first performs magnetic separation on the material, initially removing large-sized metal foreign objects. Then, the exhaust fan 71 is activated to generate negative pressure airflow, which is introduced into the filter assembly 4 through the through pipe 74. This causes the material to be conveyed downward with the airflow. After reaching the filter assembly 4, the material is blocked by the filter assembly 4, allowing the dust to continue flowing with the airflow and finally being discharged by the exhaust fan 71, completing the dust removal function. The material is trapped on the surface of the filter assembly 4 and continues to fall under gravity. The annular magnetic block inside the lower shell 2 performs secondary magnetic separation on the material, further removing residual metal foreign objects. This method can quickly remove impurities from the material and improves work efficiency.

[0035] In one embodiment of the metal foreign object removal device for cigarette factory dust removal equipment of this utility model, such as Figures 1 to 4As shown, the negative pressure assembly 7 also includes a vertical pipe 75 and a connecting pipe 76. The first end of the vertical pipe 75 is connected to the inlet end of the exhaust fan 71, the second end of the vertical pipe 75 is connected to the first end of the connecting pipe 76, and the second end of the connecting pipe 76 is connected to the first end of the hose 73.

[0036] This invention connects the first end of the vertical pipe 75 to the inlet end of the exhaust fan 71, and the second end of the vertical pipe 75 to the first end of the connecting pipe 76, and connects the second end of the connecting pipe 76 to the first end of the hose 73. Through the action of the vertical pipe 75 and the connecting pipe 76, negative pressure air can be stably introduced into the hose 73, thereby acting on the material to adsorb dust in the material.

[0037] In one embodiment of the metal foreign object removal device for cigarette factory dust removal equipment of this utility model, such as Figure 5 As shown, the filter assembly 4 includes an outer shell 41, an inner shell 42, an annular hole 43, and a filter screen 44. The inner shell 42 is disposed inside the outer shell 41, and a gap is formed between the outer shell 41 and the inner shell 42. The through pipe 74 passes through the outer shell 41. The annular hole 43 is disposed on the inner shell 42, and the filter screen 44 is disposed inside the annular hole 43.

[0038] This invention involves a through-tube 74 penetrating the outer shell 41, an annular hole 43 being disposed on the inner shell 42, and a filter screen 44 being disposed within the annular hole 43. When the exhaust fan 71 generates a negative pressure airflow, it causes the hose 73 and the through-tube 74 to generate a negative pressure, thereby drawing out the air inside the outer shell 41. At this time, the material moves towards the filter screen 44 under the influence of the airflow and is blocked by the filter screen 44. The dust passing through the filter screen 44 continues to flow with the airflow and is discharged by the exhaust fan 71.

[0039] In one embodiment of the metal foreign object removal device for cigarette factory dust removal equipment of this utility model, such as Figures 1 to 4 As shown, a top cover 8 is provided above the feed pipe 3, and the top cover 8 is threadedly connected to the top of the feed pipe 3.

[0040] When in use, the operator unscrews the top cover 8 and pours the processed tobacco leaves or shreds into the feed pipe 3. The material enters the upper shell 1 under the action of gravity. The annular magnetic block on the inner side of the upper shell 1 first performs a magnetic separation on the material, initially removing large-sized metal foreign objects.

[0041] In one embodiment of the metal foreign object removal device for the dust removal equipment in the cigarette factory of this utility model, mounting grooves are provided on the inner side of the upper shell 1 and the inner side of the lower shell 2, and an annular magnetic block is placed in the mounting groove. The thickness of the annular magnetic block is the same as the depth of the mounting groove.

[0042] This invention places an annular magnetic block inside a mounting groove. The thickness of the annular magnetic block is the same as the depth of the mounting groove, making the interiors of the upper shell 1 and the lower shell 2 flush, which facilitates the cleaning of metallic foreign objects in the adsorbed material.

[0043] In one embodiment of the metal foreign object removal device for cigarette factory dust removal equipment of this utility model, such as Figures 1 to 4 As shown, the fixing component 6 includes a base plate 61, and the feeding pipe 5 and the exhaust fan 71 are all mounted on the base plate 61. This arrangement improves the stability of the installation.

[0044] In one embodiment of the metal foreign object removal device for the dust removal equipment in the cigarette factory of this utility model, the fixing component 6 further includes a support block 62, a connecting block 63 and a vertical rod 64. The support block 62 is respectively arranged on the four sides of the outer wall of the feeding pipe 5. The first end of the connecting block 63 is connected to the support block 62, the second end of the connecting block 63 is perpendicularly connected to the first end of the vertical rod 64, and the second end of the vertical rod 64 is connected to the base plate 61.

[0045] This utility model connects the first end of the connecting block 63 to the support block 62, the second end of the connecting block 63 is perpendicularly connected to the first end of the vertical rod 64, and the second end of the vertical rod 64 is connected to the base plate 61. This allows the vertical rod 64 to provide support for the feeding pipe 5, creating a gap between the feeding pipe 5 and the base plate 61. This allows the material to fall onto the base plate 61, preventing the material from falling back to the ground and becoming dusty again.

[0046] In one embodiment of the metal foreign object removal device for cigarette factory dust removal equipment of this utility model, such as Figure 4 As shown, the fixing component 6 also includes a moving wheel 65 and a stabilizing block 66. The moving wheel 65 is respectively located at the four corners of the bottom of the base plate 61, and the stabilizing block 66 is located on one side of the moving wheel 65 and is connected to the base plate 61.

[0047] This invention features four movable wheels 65 positioned at the four corners of the bottom of the base plate 61, with stabilizing blocks 66 located on one side of each wheel 65 and connected to the base plate 61. The four movable wheels 65 at the bottom of the base plate 61 allow the entire machine to be quickly moved to the desired workstation. The stabilizing blocks 66 also provide support for the dust removal equipment in case of breakage during use, preventing it from tipping over.

[0048] The working principle and usage of this utility model are as follows: During use, the operator can quickly move the entire machine to the required work position by moving the four sides at the bottom of the base plate 61; then, unscrew the top cover 8 and pour the processed tobacco leaves or tobacco shreds into the feed pipe 3. The material enters the upper shell 1 under the action of gravity. The annular magnetic block on the inner side of the upper shell 1 first performs a magnetic separation on the material to initially remove large-sized metal foreign objects. The exhaust fan 71 is started to generate a negative pressure airflow. The negative pressure is introduced into the inner shell 42 of the filter assembly 4 through the through pipe 74, so that the material is conveyed downward with the airflow. After the material reaches the filter assembly 4, it is blocked by the filter screen 44. The dust continues to flow with the airflow and is finally discharged by the exhaust fan 71, completing the dust removal function. The material is trapped on the surface of the filter screen 44 and continues to fall under the action of gravity. The annular magnetic block on the inner side of the lower shell 2 performs a second magnetic separation on the material to further remove residual metal foreign objects. The clean material after dust removal and two magnetic separations is discharged through the discharge pipe 5 and can directly enter the next process.

[0049] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A metal foreign object removal device for dust removal equipment in a cigarette factory, characterized in that, include: Upper shell, lower shell, feed pipe, filter assembly, discharge pipe, fixing assembly and negative pressure assembly; Both the upper shell and the lower shell have annular magnetic blocks embedded in their inner walls. The top of the upper shell is connected to the feed pipe. The filter assembly is located between the bottom of the upper shell and the top of the lower shell. The filter assembly is used to filter foreign objects inside the material transported by the feed pipe. The discharge pipe is connected to the bottom of the lower shell. The fixing assembly is connected to the discharge pipe. The negative pressure assembly includes an exhaust fan, an air outlet pipe, a flexible hose, and a through pipe. The exhaust fan is mounted on the fixed assembly. The outlet end of the exhaust fan is connected to the air outlet pipe. The inlet end of the exhaust fan is connected to the first end of the flexible hose. The second end of the flexible hose is connected to the first end of the through pipe. The second end of the through pipe passes through the filter assembly.

2. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 1, characterized in that, The negative pressure assembly also includes a vertical pipe and a connecting pipe. The first end of the vertical pipe is connected to the inlet end of the exhaust fan, the second end of the vertical pipe is connected to the first end of the connecting pipe, and the second end of the connecting pipe is connected to the first end of the flexible hose.

3. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 1, characterized in that, The filter assembly includes an outer shell, an inner shell, an annular hole, and a filter screen. The inner shell is disposed inside the outer shell, and a gap is formed between the outer shell and the inner shell. The through-tube passes through the outer shell, the annular hole is disposed on the inner shell, and the filter screen is disposed inside the annular hole.

4. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 1, characterized in that, A top cover is provided above the feed pipe, and the top cover is threadedly connected to the top of the feed pipe.

5. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 1, characterized in that, The inner sides of the upper shell and the lower shell are both provided with mounting grooves, and the annular magnetic block is disposed in the mounting groove. The thickness of the annular magnetic block is the same as the depth of the mounting groove.

6. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 1, characterized in that, The fixing component includes a base plate, and the feeding pipe and the exhaust fan are both mounted on the base plate.

7. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 6, characterized in that, The fixing assembly also includes a support block, a connecting block, and a vertical rod. The support blocks are respectively disposed on the four sides of the outer wall of the feed pipe. The first end of the connecting block is connected to the support block, the second end of the connecting block is perpendicularly connected to the first end of the vertical rod, and the second end of the vertical rod is connected to the base plate.

8. The metal foreign object removal device for cigarette factory dust removal equipment according to claim 6, characterized in that, The fixing component also includes moving wheels and stabilizing blocks. The moving wheels are respectively located at the four corners of the bottom of the base plate, and the stabilizing blocks are respectively located on one side of the moving wheels and connected to the base plate.