Cut tobacco feeding machine easy to clean

Abstract

The utility model relates to the technical field of cigarette manufacturing, in particular to a cut tobacco feeding machine easy to clean. The device sequentially comprises a feeding section, a lifting section and a feeding section, the lifting section comprises a shell and a lifting belt arranged in the shell, and the shell comprises two side plates and a back plate; guide rails are arranged on the two side plates; the back plate comprises a rotating shaft and a roller shutter; the two ends of the rotating shaft in the axial direction are rotationally connected with the two side plates correspondingly. The roller shutter is wound on the rotating shaft, and the two side edges of the roller shutter are in sliding connection with the two guide rails respectively; and the driving piece is used for controlling the rotating shaft to rotate so as to wind and unwind the roller shutter. The roller shutter type back plate is arranged, winding and falling of the back plate can be conveniently achieved through the driving piece, and opening and closing of the back of the lifting section are facilitated; and after the back of the lifting section is opened, a large unshielded opening is formed, a cleaning tool can conveniently penetrate through the opening and stretch into the lifting section for cleaning, cleaning dead corners are reduced, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cigarette manufacturing technology, and in particular to an easy-to-clean tobacco feeder. Background Technology

[0002] The feeder is mainly used in tobacco processing production lines. To meet the process requirements of the processing line equipment, it is used in conjunction with metering tubes, electronic belt scales or other equipment. It has the functions of lifting and storing materials, and can deliver materials in a constant, uniform and quantitative manner.

[0003] In recent years, with increasing attention to the quality of cigarette products, the requirements for cleaning and maintenance of related equipment have also been continuously increasing. Currently, there are 18 feeding machines used in the tobacco processing workshop, including the leaf and stem lines and side lines. The back panels of these machines are mostly composed of 3 to 8 stainless steel plates, each secured to the feeding machine frame with 12 screws. During routine maintenance, the machine chains can only be cleaned by blowing through the side windows, resulting in poor cleaning effectiveness, low efficiency, and high difficulty. This also leads to some hard-to-clean blind spots becoming hiding places for tobacco insects, jeopardizing the quality of cigarette products.

[0004] Patent document CN217284734U discloses an easily flippable feeder backplate assembly, including a feeder side plate, a feeder rear backplate fastened to the side plate, and the rear backplate being composed of multiple backplates. It also includes rotating shafts corresponding to each of the backplates, limiting bushings mounted on the side plate to support the rotating shafts, and support legs to support the side plates. The rotating shafts are perpendicular to the side plates and are fixedly connected to the upper surface of the corresponding backplates. The feeder rear backplate is composed of multiple smaller backplates; each backplate is small and lightweight, allowing for individual flipping for cleaning without needing to flip the entire backplate at once.

[0005] In this prior art, the rotating shafts of several back plates inevitably divide the large opening on the back of the wire feeder into several smaller openings. When the cleaning tool passes through the opening and extends into the wire feeder for cleaning, the smaller opening restricts the range of movement of the cleaning tool and affects the cleaning range of the cleaning tool. The cleaning tool needs to be pulled out from one opening and then extended into the wire feeder from another opening in order to clean other parts, resulting in low cleaning efficiency and the possibility of cleaning dead corners. Utility Model Content

[0006] This invention aims to solve the above problems by providing an easy-to-clean tobacco feeder that is highly efficient and leaves no blind spots in the cleaning process.

[0007] The technical solution to this problem is to provide an easy-to-clean tobacco feeder, which includes a feeding section, a lifting section, and a feeding section in sequence. The lifting section includes a housing and a lifting belt disposed within the housing. The housing includes two side plates and a back plate disposed between the two side plates. Each of the two side plates is provided with a guide rail along the conveying direction of the lifting belt. The back plate includes a rotating shaft and a roller shutter. The two ends of the rotating shaft in the axial direction are respectively rotatably connected to the two side plates. The roller shutter includes a winding end wound around the rotating shaft and a movable end opposite to the winding end. The two sides of the roller shutter parallel to the conveying direction of the lifting belt are respectively slidably connected to the two guide rails. The device also includes a driving component for controlling the rotation of the rotating shaft to wind up and unwind the roller shutter.

[0008] As a preferred embodiment of this invention, the rotating shaft is rotatably connected to one end of the side plate near the feeding section.

[0009] As a preferred embodiment of this invention, the movable end is magnetically connected to the feed section.

[0010] As a preferred embodiment of this invention, the movable end is connected to an air pipe, which is connected to an air component for providing positive or negative pressure gas, and the air pipe has an air hole with an opening facing the inside of the housing.

[0011] As a preferred embodiment of this invention, the feeding section is provided with a limiting hole through which the air pipe can pass.

[0012] As a preferred embodiment of the present invention, the air pipe is provided with a plurality of air holes along the conveying direction of the lifting belt, and the diameter of the plurality of air holes increases in the direction from the feed section to the feeding section.

[0013] As a preferred embodiment of this invention, the end of the air pipe near the movable end is provided with a branch pipe, and the branch pipe is provided with a cleaning port with an opening facing the side of the roller shutter near the inside of the housing.

[0014] As a preferred embodiment of this invention, the end of the trachea furthest from the movable end is wound around a storage shaft.

[0015] As a preferred embodiment of this utility model, the receiving shaft is located at the end of the feeding section away from the lifting section, and clamps for the air pipe to pass through are sequentially provided at the bottom of the feeding section and along the direction from the feeding section to the lifting section.

[0016] As a preferred embodiment of this invention, a dust collection box is provided at one end of the housing near the feeding section.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this application, a roller shutter-type back panel is provided, which can be easily rolled up and lowered by a drive component, facilitating the opening and closing of the back of the lifting section; at the same time, it also makes the back of the lifting section have a large unobstructed opening after opening, which makes it easy for cleaning tools to pass through the opening and reach into the interior of the lifting section for cleaning, reducing cleaning dead corners and improving cleaning efficiency.

[0019] 2. In some embodiments, the movable end of the roller shutter is connected to an air pipe. When the back panel is rolled up and the back of the lifting section is opened, the air pipe can be laid at the opening to blow or absorb the inside of the lifting section through the air holes, thereby improving the cleaning effect.

[0020] 3. In some embodiments, the air pipe is connected to a branch pipe, which can be used to clean the side of the roller shutter near the inside of the housing, preventing the roller shutter from rolling up impurities. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an easy-to-clean tobacco feeder;

[0022] Figure 2 This is a schematic diagram of the working process of the back panel of an easy-to-clean tobacco feeder.

[0023] Figure 3 This is a structural diagram of the roller shutter, air pipe, and branch pipe in an easy-to-clean tobacco feeder.

[0024] In the diagram: feeding section 1, limiting hole 11, clamp 12, lifting section 2, side plate 21, guide rail 211, rotating shaft 221, roller shutter 222, air pipe 23, air hole 231, storage shaft 232, branch pipe 24, cleaning port 241, ash receiving box 25, feeding section 3. Detailed Implementation

[0025] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] An easy-to-clean tobacco feeder, such as Figure 1 As shown, from low to high, the structure includes a feeding section 1, an lifting section 2, and a feeding section 3. The lifting section 2 includes a housing and a lifting belt disposed within the housing. When the feeder is working, tobacco shreds are fed into the feeding section 1, fall to the bottom of the lifting belt, and then are lifted by the lifting belt to the feeding section 3. From there, the tobacco shreds are fed into the cigarette-making machine via the suction tube in the feeding section 3. The feeding section 1 serves as a tobacco shred storage area, and the feeding section 3, through the suction tube, removes the tobacco shreds. Therefore, it is primarily necessary to clean any residual tobacco shreds and impurities from the lifting section 2.

[0027] The housing of the lifting section 2 includes two side plates 21, and a top plate and a back plate disposed between the two side plates 21. Each side plate 21 has a guide rail 211 near the back plate along the conveying direction of the lifting belt. The back plate includes a rotating shaft 221 and a roller shutter 222. The two ends of the rotating shaft 221 in the axial direction are rotatably connected to the two side plates 21 respectively. The roller shutter 222 is a metal roller shutter, including a winding end wound around the rotating shaft 221 and a movable end opposite to the winding end. The two sides of the roller shutter 222 parallel to the conveying direction of the lifting belt are slidably connected to the two guide rails 211 respectively. It also includes a drive unit for controlling the rotation of the rotating shaft 221 to wind and unwind the roller shutter 222. The drive unit can be a motor, and the rotating shaft 221 can be connected to the motor output shaft through a reducer. When the feeder is working, if... Figure 2 As shown in the left figure, the roller shutter 222 is unrolled and laid between the two side panels 21 to close the back of the lifting section 2; when cleaning is required, such as Figure 2 As shown in the right figure, the roller shutter 222 rolls up, and an opening is formed between the two side panels 21, allowing cleaning tools to enter and exit.

[0028] The rotating shaft 221 can be located at one end of the lifting section 2 near the feeding section 1, or at one end of the lifting section 2 near the feeding section 3. In some embodiments, such as... Figure 1 As shown, the rotating shaft 221 is rotatably connected to the side plate 21 near the feeding section 3, so that the winding end of the roller shutter 222 is located above and the movable end is located below. This makes it easier for the movable end to slide down the guide rail 211 based on its own gravity when the roller shutter 222 is unrolled, thus improving the smoothness of the back of the unrolling and closing lifting section 2.

[0029] In some implementations, to improve the sealing of the back of the lifting section 2, the movable end of the roller shutter is magnetically connected to the feeding section 1. Specifically, as... Figure 1 As shown, the feeding section 1 includes a left side plate near the lifting section 2, and the movable end face of the roller shutter can be magnetically connected to the outer surface of the left side plate.

[0030] In some implementations, to further improve the convenience and effectiveness of cleaning the interior of the lifting section 2, such as... Figure 3 As shown, the movable end of the roller shutter 222 is connected to an air pipe 23. The air pipe 23 is a flexible hose, with one end connected to the movable end and the other end connected to an air supply for providing positive or negative pressure gas. The air pipe 23 also has an air hole 231 with an opening facing into the housing. Figure 2As shown, when the roller shutter 222 is rolled up, the movable end moves toward the winding end, which can drive the air pipe 23 to move and lay it at the opening between the two side plates 21. In some embodiments, in order to ensure the laying effect of the air pipe 23, the left side plate of the feed section 1 is provided with a limiting hole 11 for the air pipe 23 to pass through, so as to restrict the movement direction of the air pipe 23. By introducing positive pressure gas into the air pipe 23 and the gas being ejected from the air hole 231, the interior of the lifting section 2 can be purged; by introducing negative pressure gas into the air pipe 23, impurities inside the lifting section 2 can be adsorbed; thereby effectively cleaning the areas inside the lifting section 2 that cannot be cleaned by cleaning tools.

[0031] In some embodiments, the air pipe 23 is provided with a plurality of air holes 231 along the conveying direction of the lifting belt; the greater number of air holes 231 is to improve the purging or adsorption effect. In other embodiments, such as... Figure 3 As shown, the aperture of several air holes 231 increases sequentially from the feed section 1 to the feeding section 3. By adjusting the aperture of the air holes 231, a gas flow field from low pressure to high pressure can be formed inside the lifting section 2, so that a pressure difference is formed in different areas inside the lifting section 2, and the gas flows in one direction to ensure smooth gas flow inside the lifting section 2, avoid diffraction interference of air at different pressure levels, and reduce secondary pollution inside the lifting section 2 after dust settling.

[0032] In the implementation of positive pressure purging, such as Figure 1 As shown, a dust collection box 25 is provided at one end of the shell near the feed section 1 to collect impurities blown down. In some embodiments, to ensure the integrity of dust collection, the dust collection box 25 is larger in size. Furthermore, a movable scraper is provided inside the dust collection box 25, which can gather the accumulated dust that falls during production and cleaning and push it to the dust collection tray provided at the discharge port of the dust collection box 25. This can reduce the time spent on manual cleaning, and maintenance personnel only need to empty the accumulated dust in the dust collection tray to complete the dust collection. The movable scraper structure is not limited. For example, slide rails can be provided on the two opposite inner walls of the dust collection box 25, and the two ends of the scraper can be slidably connected to the slide rails. At the same time, the scraper can be connected to the piston rod of the cylinder.

[0033] In some implementations, to improve the cleaning effect, such as Figure 3 As shown, the end of the tracheal tube 23 near the movable end is provided with a branch tube 24. The branch tube 24 has a cleaning port 241 with an opening facing the side of the roller shutter 222 near the inside of the housing. Specifically, the branch tube 24 can be designed as a bent tube, including a connecting section perpendicularly connected to the tracheal tube 23 and a bent section at an angle of 45° to 60° with the connecting section. The cleaning port 241 is located at the end of the bent section. The side of the roller shutter 222 near the inside of the housing can be cleaned through the branch tube 24, preventing the roller shutter 222 from rolling up impurities. At the same time, based on the configuration of the branch tube 24, such as Figure 2 and Figure 3 As shown, the movable end of the roller shutter has a notch. Air pipe 23 connects to the bottom of the notch, and the connection point between branch pipe 24 and air pipe 23 is located within the notch. The notch allows the movable end of the roller shutter to smoothly connect magnetically to the left side plate of the feeding section 1 without affecting the movement of the portion of air pipe 23 outside the notch within the limiting opening 11 of the feeding section 1. The width of the notch is perpendicular to the rolling / unrolling direction of the roller shutter. Figure 2 The width in the left-right direction is preferably basically the same as the outer diameter of the trachea 23 to reduce the gap between the notch and the trachea 23 and ensure the sealing of the back of the lifting section 2. In some embodiments, in order to further ensure the sealing of the back of the lifting section 2, such as Figure 3 As shown, a cover plate with a thickness less than that of the roller shutter 222 can be installed at the opening. One side of the cover plate is flush with the side of the roller shutter 222 away from the inside of the lifting section 2, and the other side forms a semi-groove with the inner wall of the opening. The connection between the air pipe 23 and the branch pipe 24 is set in the semi-groove.

[0034] When the back of the lifting section 2 is closed, in order to facilitate the retraction of the trachea 23, in some embodiments, such as Figure 1 As shown, the end of the air tube 23 is fixed to a storage shaft 232. By rotating the storage shaft 232, the air tube 23 can be rolled up on the storage shaft 232, which can also help the roller shutter 222 to unroll and close the back of the lifting section 2.

[0035] Based on this, in order to expand the applicability of trachea 23, such as Figure 1 As shown, the receiving shaft 232 is located at the end of the feeding section 1 away from the lifting section 2. Clamps 12, which allow the air pipe 23 to pass through, are sequentially arranged at the bottom of the feeding section 1 and along the direction from the feeding section 1 to the lifting section 2. The clamps 12 help the air pipe 23 to be laid at the bottom of the feeding section 1, allowing the air pipe 23 to blow or absorb air into the interior of the feeding section 1 regardless of whether the back of the lifting section 2 is open, thus cleaning the interior of the feeding section 1.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An easy-to-clean tobacco feeder, comprising a feeding section (1), a lifting section (2) and a feeding section (3) in sequence; the lifting section (2) comprises a shell and a lifting belt arranged in the shell, the shell comprises two side plates (21) and a back plate arranged between the two side plates (21); characterized in that: both of the two side plates (21) are provided with guide rails (211) along the conveying direction of the lifting belt; the back plate comprises a rotating shaft (221) and a roller blind (222); both ends of the rotating shaft (221) in the axial direction are rotatably connected with the two side plates (21) respectively; the roller blind (222) comprises a winding end wound on the rotating shaft (221) and a movable end opposite to the winding end, and both side edges of the roller blind (222) parallel to the conveying direction of the lifting belt are slidably connected with the two guide rails (211) respectively; further comprising a driving member for controlling the rotation of the rotating shaft (221) to wind or unwind the roller blind (222).

2. A readily cleanable tobacco feed according to claim 1, characterised in that: the rotating shaft (221) is rotatably connected with one end of the side plate (21) close to the feeding section (3).

3. A readily cleanable tobacco feed according to claim 1 wherein: the movable end is magnetically connected with the feeding section (1).

4. A readily cleanable tobacco feeder as claimed in claim 1 wherein: the movable end is connected with an air pipe (23), the air pipe (23) is in communication with an air member for providing positive pressure or negative pressure gas, and the air pipe (23) is provided with air holes (231) opening towards the inside of the shell.

5. A readily cleanable tobacco feeder as claimed in claim 4, characterised in that: the feeding section (1) is provided with a limiting hole (11) through which the air pipe (23) passes.

6. A readily cleanable tobacco feeder as claimed in claim 4, characterised in that: the air pipe (23) is provided with a plurality of air holes (231) along the conveying direction of the lifting belt, and the diameters of the plurality of air holes (231) increase in the direction from the feeding section (1) to the feeding section (3).

7. A readily cleanable tobacco feeder as claimed in claim 4 wherein: one end of the air pipe (23) close to the movable end is provided with a branch pipe (24), and the branch pipe (24) is provided with a cleaning port (241) opening towards the surface of the roller blind (222) close to the inside of the shell.

8. A readily cleanable tobacco feeder as defined in claim 4, wherein: one end of the air pipe (23) away from the movable end is wound on a storage shaft (232).

9. A readily cleanable tobacco feeder as claimed in claim 8, characterised in that: the storage shaft (232) is arranged at one end of the feeding section (1) away from the lifting section (2), and the bottom of the feeding section (1) is provided with clamps (12) in sequence in the direction from the feeding section (1) to the lifting section (2) through which the air pipe (23) passes.

10. A readily cleanable tobacco feeder as defined in claim 1, wherein: one end of the shell close to the feeding section (1) is provided with a dust collecting box (25).

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