High-position smoke outlet device

Abstract

The utility model relates to the technical field of cigarette production, in particular to a high-position cigarette discharging device. The cigarette conveying device is used for conveying cigarettes at a low position to a cigarette outlet conveying belt at a high position and comprises an up-and-down conveying belt mounting part; the smoke discharging device further comprises a smoke discharging gear box, the smoke discharging gear box is installed on the up-down conveying belt installation portion and provided with an adsorption air chamber, a first transmission wheel and a second transmission wheel, and the first transmission wheel and the second transmission wheel are communicated with the adsorption air chamber through an air distribution seat. And the second transfer wheel is arranged above the cigarette outlet conveying belt. According to the cigarette discharging device, the size and the installation position of an original cigarette discharging wheel and the like are not changed, only after the original up-down conveying belt is disassembled, the cigarette discharging gear box is installed on the up-down conveying belt installation part, cigarettes are conveyed to the position above the cigarette discharging conveying belt through the first conveying wheel and the second conveying wheel of the cigarette discharging gear box and then fall off, and high-position discharging is achieved; and the problem of rolling and rubbing caused by discharging of the upper and lower conveying belts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production, in particular to a high-position cigarette outlet device. Background Art

[0002] During the cigarette production process, cigarettes need to be transported from a low position to a high position. The current method of transporting cigarettes is as follows: Both high-speed and medium-speed cigarette-making equipment rely on upper and lower conveyor belts to clamp cigarettes from the cigarette discharge wheel to the conveying channel. The working principle is that cigarettes are transferred from the reject wheel to the intermediate wheel, then from the intermediate wheel to the sampling wheel, and then to the cigarette discharge wheel. At the highest point of the cigarette discharge wheel, the cigarettes are delivered and enter the upper and lower conveyor belts, where they are clamped and transported out. Using this structure, cigarettes may roll and tangle as they pass through the upper and lower conveyor belts. This rolling and tumbling during discharge can easily cause cigarette blockage, leading to malfunction of the discharge device. It can also increase the amount of hair on the ends of finished cigarettes, affecting cigarette quality and production efficiency.

[0003] The patent document with announcement number CN204132380U discloses a high-position discharge device for cigarettes, including a high-position transmission device for conveying cigarettes to a high-position discharge port, and a stacking and blanking device arranged at the high-position discharge port for stacking cigarettes in an orderly manner; the high-position transmission device for cigarettes includes a cigarette discharge wheel arranged at the high-position discharge port, and the stacking and blanking device includes a bracket, a baffle arranged on the bracket, and an arc guide rail arranged below the baffle, and the baffle is provided with an arc segment, and the arc segment cooperates with the outer contour of the cigarette discharge wheel and is spaced a predetermined distance apart.

[0004] The device solves the problem of cigarette rolling and clogging during discharge by setting up a stacking and blanking device. In order to ensure that the stacking and blanking device can transfer the cigarettes to the smoke outlet conveyor belt, at least the center installation position and size of the smoke outlet wheel, sampling wheel and intermediate wheel need to be adjusted: for example, the smoke outlet wheel needs to be raised and at the same time close to the smoke outlet conveyor belt to ensure that the cigarettes on the smoke outlet wheel fall onto the smoke outlet conveyor belt; then, the sampling wheel that cooperates with the smoke outlet wheel also needs to be adjusted upward and toward the direction of the smoke outlet conveyor belt, and the size and center installation position of the intermediate wheel between the sampling wheel and the rejection wheel also need to be adjusted accordingly; finally, correspondingly, it is necessary to adjust the gear box used to install these wheel bodies, as well as structures such as the vacuum air chamber used in conjunction with these wheel bodies to adsorb cigarettes, which leads to the problem of complex modification. Utility Model Content

[0005] The utility model aims to solve the above problems and provides a high-position smoke outlet device which is simple to modify and can still solve the problem of smoke material rolling and rubbing.

[0006] The technical solution to the problem solved by the present invention is to provide a high-position smoke-out device for transferring low-position cigarettes to a high-position smoke-out conveyor belt, comprising an outlet gear box, the outlet gear box comprising a vacuum air chamber, and in sequence along the cigarette transfer direction comprising a rejection wheel mounting portion, an intermediate wheel mounting portion, a sampling wheel mounting portion, a smoke-out wheel mounting portion, and an upper and lower conveyor belt mounting portion; further comprising a smoke-out gear box, the smoke-out gear box being mounted on the upper and lower conveyor belt mounting portions, the smoke-out gear box being provided with an adsorption air chamber, a first transfer wheel for receiving cigarettes transferred from a smoke-out wheel mounted on the smoke-out wheel mounting portion, and a second transfer wheel for receiving cigarettes transferred from the first transfer wheel, the first transfer wheel and the second transfer wheel being connected to the adsorption air chamber via an air distribution seat, respectively; the second transfer wheel being arranged above the smoke-out conveyor belt.

[0007] As a preferred embodiment of the present invention, the adsorption air chamber is communicated with the vacuum air chamber.

[0008] As a preferred embodiment of the present invention, the second transfer wheel includes a smoke falling portion for cigarettes to fall out and onto the smoke outlet conveyor belt, and the smoke falling portion is located between the lowest point of the second transfer wheel and the end point of the horizontal diameter of the second transfer wheel away from the first transfer wheel.

[0009] As a preferred embodiment of the present invention, a stop block is provided between the lowest point of the second transfer wheel and the cigarette outlet conveyor belt for stopping the cigarettes from continuing to rotate with the second transfer wheel.

[0010] As a preferred embodiment of the present invention, a guard plate is suspended on the surface of the smoke falling portion, and a smoke outlet is formed between one end of the guard plate close to the smoke outlet conveyor belt and the stop block.

[0011] As a preference of the present invention, it further comprises a fixing plate for mounting the guard plate, and one end of the guard plate away from the smoke conveyor belt is hinged to the fixing plate via a hinge shaft parallel to the axial direction of the second transfer wheel.

[0012] As a preferred embodiment of the present invention, the smoke outlet gear box further comprises two guide plates, and the two guide plates are respectively arranged on both sides of the smoke outlet conveyor belt; the stop block is arranged between the two guide plates.

[0013] As a preferred embodiment of the present invention, the first transfer wheel includes a smoke removal portion.

[0014] As a preferred embodiment of the present invention, the first transfer wheel includes a concave ring and a convex ring along the axial direction, and the outer diameter of the convex ring is larger than the outer diameter of the concave ring; the concave ring and the convex ring are respectively provided with a plurality of grooves along the circumferential direction, and the grooves of the concave ring are connected with the grooves of the convex ring to form a smoke groove, and the grooves of the concave ring are provided with adsorption holes connected with the adsorption air chamber.

[0015] As a preferred embodiment of the present invention, the first transmission wheel includes two concave rings and one convex ring, and the convex ring is arranged between the two concave rings.

[0016] Beneficial effects of the utility model:

[0017] 1. In this application, the size and installation position of the original smoke outlet wheel are not modified. Only after the original upper and lower conveyor belts are dismantled, the smoke outlet gear box is installed to the upper and lower conveyor belt installation part, and the first transfer wheel and the second transfer wheel of the smoke outlet gear box are used to transfer the cigarettes to the top of the smoke outlet conveyor belt and then drop them to realize high-position discharge, avoiding the rolling and rubbing problem caused by the discharge of the upper and lower conveyor belts, and has the characteristics of simple modification.

[0018] 2. In some embodiments, a cigarette dropout is positioned between the lowest point and the left end point of the second transfer wheel, thereby utilizing the cigarette's own gravity to cause the cigarette to drop. Compared to the prior art design where cigarettes are stopped by the arc guide rail at the left end point of the smoke outlet wheel and fall, cigarettes are not damaged by being squeezed between the smoke outlet wheel and the arc guide rail (the cigarette chute at the left end point of the smoke outlet wheel opens to the left and has a certain receiving function for cigarettes. Even if a cigarette is stopped, it may continue to rotate under the influence of the chute, causing the cigarette to be squeezed between the chute and the arc guide rail).

[0019] 3. In some embodiments, a stopper is positioned at the lowest point of the second transfer wheel to catch cigarettes that may have failed to fall through the dropout section. This stopper provides secondary protection, improving cigarette drop reliability compared to existing methods that rely solely on arc-shaped guide rails similar to the stopper. Furthermore, the stopper is positioned at the lowest point, where the second transfer wheel's cigarette chute opens downward. Since the chute itself has little effect on securing cigarettes, cigarettes within it are more likely to fall out after being stopped, eliminating the squeezing and damage that can occur in existing methods.

[0020] 4. In some embodiments, a cigarette rejecting unit is provided on the first transfer wheel to perform secondary inspection and reject unqualified cigarettes, thereby improving the quality of the discharged cigarettes.

[0021] 5. In some embodiments, a convex ring is provided on the first transfer wheel to receive cigarettes when there is no negative pressure adsorption effect, thereby avoiding the risk of cigarettes falling during the transfer between the first transfer wheel and the second transfer wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the smoke conveyor belt and outlet gear box in a high-position smoke outlet device;

[0023] Figure 2 It is a schematic diagram of the front structure of a high-position smoke outlet device;

[0024] Figure 3 It is a schematic diagram of the back structure of a high-position smoke outlet device;

[0025] Figure 4 It is a front view of a high-position smoke outlet device;

[0026] Figure 5 This is a schematic diagram of the structure of the first transfer wheel and the second transfer wheel in a high-position smoke outlet device;

[0027] Figure 6 It is a structural schematic diagram of another embodiment of a high-position smoke outlet device;

[0028] In the figure: smoke outlet conveyor belt 1, outlet gear box 2, vacuum air chamber 20, intermediate wheel mounting portion 21, sampling wheel mounting portion 22, smoke outlet wheel mounting portion 23, upper and lower conveyor belt mounting portion 24, smoke outlet gear box 3, adsorption air chamber 30, first transfer wheel 31, concave ring 311, convex ring 312, second transfer wheel 32, smoke falling portion 321, stop block 322, guard plate 323, fixing plate 324, guide plate 33. DETAILED DESCRIPTION

[0029] The following are specific implementations of the present invention, and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0030] A high-position smoke outlet device is used to transport low-position cigarettes to a high-position smoke outlet conveyor belt 1. The high-position smoke outlet device used in the prior art is as follows: Figure 1 As shown, the outlet gearbox 2 is mounted at the inlet of the smoke-discharging conveyor belt 1. The outlet gearbox 2 includes a vacuum air chamber 20 and, along the direction of cigarette delivery, includes a reject wheel mounting portion on which a reject wheel is mounted, an intermediate wheel mounting portion 21 on which an intermediate wheel is mounted, a sampling wheel mounting portion 22 on which a sampling wheel is mounted, a smoke-discharging wheel mounting portion 23 on which a smoke-discharging wheel is mounted, and upper and lower conveyor belt mounting portions 24. The reject wheel, intermediate wheel, sampling wheel, and smoke-discharging wheel are connected to the vacuum air chamber 20 via a gas distribution seat to absorb, capture, or stop absorption and release cigarettes. Conventional technology also installs upper and lower conveyor belts on the conveyor belt mounting portion 24 during use. Thus, when in use, cigarettes at a low position are sequentially transferred through the reject wheel, intermediate wheel, sampling wheel, and smoke-discharging wheel, and are delivered at the highest point of the smoke-discharging wheel, causing the cigarettes to enter the upper and lower conveyor belts, where they are clamped and conveyed to the smoke-discharging conveyor belt 1.

[0031] In this application, if Figure 2 and Figure 3As shown, only the upper and lower conveyor belts installed at the upper and lower conveyor belt mounting portion 24 are disassembled, and then the smoke outlet gear box 3 is installed here, and the housing of the smoke outlet gear box 3 is fixed to the upper and lower conveyor belt mounting portion 24 by screws or other fixing methods. An adsorption air chamber 30 is provided inside the smoke outlet gear box 3, and a first transfer wheel 31 and a second transfer wheel 32 are installed on the front of the smoke outlet gear box 3. The first transfer wheel 31 and the second transfer wheel 32 are connected to the adsorption air chamber 30 through the air distribution seat respectively to adsorb and grasp or stop adsorption and release cigarettes. Specifically in this embodiment: Figure 1 As shown, the upper and lower conveyor belt mounting portion 24 is originally provided with a driving gear in order to drive the transmission of the upper and lower conveyor belts. Figure 2 As shown, the first transfer wheel 31 can be set on the driving gear to drive the first transfer wheel 31 to rotate counterclockwise, and at the same time, the diameter of the first transfer wheel 31 can be controlled so that it can receive the cigarettes transferred from the smoke outlet wheel in the original outlet gear box 2. Then, a mounting shaft is set on the smoke outlet gear box 3 by rotating the bearing to install the second transfer wheel 32. First, the position and size of the second transfer wheel 32 need to be controlled to ensure that the second transfer wheel 32 is located above the smoke outlet conveyor belt 1 as a whole and that the second transfer wheel 32 can receive the cigarettes transferred from the first transfer wheel 31. Second, in order to drive the second transfer wheel 32 to rotate counterclockwise, the mounting shaft of the second transfer wheel 32 can be meshed with the driving gear of the first transfer wheel 31 through a multi-gear or gear chain structure to achieve synchronous rotation. Third, the structure of the gas distribution seat of the second transfer wheel 32 needs to be adjusted so that the cigarettes are no longer subjected to negative pressure when they are transferred to the lower left part of the second transfer wheel 32. At this time, this part becomes the falling part 321 for the cigarettes to fall out and fall onto the smoke conveyor belt 1. It is located at the lowest point of the second transfer wheel 32 and the end point of the horizontal diameter of the second transfer wheel 32 farthest from the first transfer wheel 31 (i.e. Figure 4 The left endpoint of the , belongs to the third quadrant.

[0032] Based on this, when this application is used, Figure 4 As shown, the low-position cigarettes are sequentially transferred through the rejection wheel, the intermediate wheel, the sampling wheel, and the smoke outlet wheel, and are transferred from the upper left part of the smoke outlet wheel to the lower right part of the first transfer wheel 31. The first transfer wheel 31 rotates counterclockwise and transfers the cigarettes from its upper left part to the lower right part of the second transfer wheel 32. The second transfer wheel 32 rotates counterclockwise and uses the gravity of the cigarettes themselves in its lower left part (i.e., the cigarette falling part 321) to drop the cigarettes onto the smoke outlet conveyor belt 1, completing the high-position discharge.

[0033] For the adsorption chamber 30, in some embodiments, since the vacuum chamber 20 of the outlet gear box 2 and the adsorption chamber 30 of the smoke outlet gear box 3 both require negative pressure, Figure 3As shown, a branch pipe can be directly opened on the pipeline for extracting negative pressure in the vacuum chamber 20 to communicate with the adsorption chamber 30, without the need to set up a separate negative pressure blower, thereby reducing the modification cost.

[0034] The first transfer wheel 31 mainly plays the role of transferring cigarettes between the second transfer wheel 32 and the smoke outlet wheel. In some embodiments, Figure 5 As shown, the first transfer wheel 31 includes a concave ring 311 and a convex ring 312 along the axial direction. The outer diameter of the convex ring 312 is larger than the outer diameter of the concave ring 311. The concave ring 311 and the convex ring 312 are respectively provided with a plurality of grooves along the circumference. The grooves of the concave ring 311 are connected with the grooves of the convex ring 312 to form a smoke groove. The grooves of the concave ring 311 are provided with adsorption holes connected with the adsorption chamber. Under this arrangement, Figure 4 As shown, when a cigarette reaches the upper left side of the first transfer wheel 31, it is transferred to the second transfer wheel 32. At this time, the first transfer wheel 31 has no negative pressure adsorption effect on the cigarette, or the negative pressure adsorption force is very weak. The design of the protruding ring 312 allows the portion of the protruding ring 312 located downstream of the groove to receive the cigarette, increasing the receiving area and preventing the cigarette from falling during transfer. On this basis, to improve the receiving balance, in some embodiments, the first transfer wheel 31 includes two concave rings 311 and a protruding ring 312. The protruding ring 312 is disposed between the two concave rings 311 so that the protruding ring 312 receives the center portion of the cigarette.

[0035] In some embodiments, a cigarette rejection unit can be provided on the first transfer wheel 31 to perform secondary inspection and rejection of cigarettes. The arrangement of the cigarette rejection unit is similar to that of conventional technology, where a detection system, such as an infrared photoelectric sensor, is installed somewhere along the rotation path of the first transfer wheel 31 to monitor the quality of cigarettes passing through it in real time. If a cigarette is found to have quality issues, such as empty or broken ends, the detection system sends a signal to the control system, which controls the rejection valve to generate a shock airflow to reject the cigarette.

[0036] Regarding the second transfer wheel 32, in some embodiments, there may be a problem that cigarettes adhere to the cigarette slots of the second transfer wheel 32 and fail to fall down by gravity in the cigarette drop portion 321. Figure 4As shown, a stop block 322 for stopping cigarettes from continuing to rotate with the second transfer wheel 32 can also be provided between the lowest point of the second transfer wheel 32 and the smoke conveyor belt 1 for secondary protection. Specifically, the stop block 322 is fixed to the housing of the smoke gear box 3 by means of screws or other structures. A certain gap is provided between the bottom surface of the stop block 322 and the smoke conveyor belt 1 to prevent the friction between the smoke conveyor belt 1 and the stop block 322. The distance of the gap is preferably smaller than the diameter of the cigarette to prevent the cigarettes from rolling in the opposite direction when the smoke conveyor belt 1 has not yet started. A groove is provided on the top surface of the stop block 322, and the surface of the second transfer wheel 32 can be inserted into and pass through the groove. By controlling the distance between the bottom of the groove and the bottom of the cigarette trough of the second transfer wheel 32 to be smaller than the diameter of the cigarette, the cigarette can be stopped when the surface of the second transfer wheel 32 is inserted into the groove, thereby falling out of the cigarette trough. Because the stop block 322 is located at the lowest point of the second transfer wheel 32, when a cigarette stuck in the chute is transferred by the second transfer wheel 32 to the stop block 322, the chute's opening faces downward. Besides the possible adhesion force, the chute has no other securing effect on the cigarette, making it relatively easy for the cigarette to fall when subjected to the external force of the stop block 322. Furthermore, in some embodiments, the side of the stop block 322 is provided with an arcuate surface to guide the cigarette to slide onto the smoke outlet conveyor belt 1.

[0037] In some embodiments, a guard plate 323 is suspended from the surface of the smoke drop section 321. The guard plate 323 forms a cigarette outlet between the end of the guard plate 323 near the smoke conveyor belt 1 and the stop block 322. The guard plate 323 provides support and guidance for the falling cigarettes. Furthermore, in some embodiments, a fixed plate 324 is included for mounting the guard plate 323. The end of the guard plate 323 away from the smoke conveyor belt 1 is hinged to the fixed plate 324 via a hinge axis parallel to the axis of the second transfer wheel 32. On the one hand, the fixed plate 324 itself can be designed as an arc plate to further support and guide the falling cigarettes. On the other hand, the hinged arrangement allows the opening width of the cigarette outlet between the guard plate 323 and the stop block 322 to be adjusted, ensuring smooth stacking and conveying of cigarettes and providing a safety protection function. In some embodiments, a material level detection bracket is mounted on the guard plate 323 to detect the material level at the outlet. This detection is used to control the start and stop of the smoke conveyor belt 1 to prevent excessive cigarette accumulation or smoke discharge interruptions.

[0038] In addition, since the cigarettes fall onto the cigarette conveyor belt 1 by natural falling, in order to prevent the cigarettes from falling from the cigarette conveyor belt 1, in some embodiments, such as Figure 6As shown, the smoke outlet gear box 3 also includes two guide plates 33, one guide plate 33 is directly fixed to the box body by screws or other structures, and the other guide plate 33 is connected to the guide plate 33 by a connecting rod, so that the two guide plates 33 are respectively suspended on both sides of the smoke outlet conveyor belt 1, and the stop block 322 and the guard plate 323 are both arranged between the two guide plates 33, so as to ensure that the cigarette falls onto the smoke outlet conveyor belt 1 between the two guide plates 33.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A high-position smoke outlet device for conveying low-position cigarettes to a high-position smoke outlet conveyor belt (1), comprising an outlet gear box (2), the outlet gear box (2) comprising a vacuum air chamber (20), and comprising, in sequence along the cigarette conveying direction, a rejecting wheel mounting portion, an intermediate wheel mounting portion (21), a sampling wheel mounting portion (22), a smoke outlet wheel mounting portion (23), and upper and lower conveyor belt mounting portions (24); characterized in that: The smoke outlet gear box (3) is further comprised, wherein the smoke outlet gear box (3) is mounted on the upper and lower conveyor belt mounting portions (24), and the smoke outlet gear box (3) is provided with an adsorption air chamber (30), a first transfer wheel (31) for receiving cigarettes transferred from a smoke outlet wheel mounted on the smoke outlet wheel mounting portion (23), and a second transfer wheel (32) for receiving cigarettes transferred from the first transfer wheel (31), wherein the first transfer wheel (31) and the second transfer wheel (32) are respectively connected to the adsorption air chamber (30) via an air distribution seat; The second transfer wheel (32) is arranged above the smoke outlet conveyor belt (1).

2. A high-position smoke outlet device according to claim 1, characterized in that: The adsorption air chamber (30) is communicated with the vacuum air chamber (20).

3. The high-position smoke outlet device according to claim 1, characterized in that: The second transfer wheel (32) comprises a cigarette drop portion (321) for dropping cigarettes to fall onto the cigarette outlet conveyor belt (1), the cigarette drop portion (321) being located between the lowest point of the second transfer wheel (32) and an end point of the horizontal diameter of the second transfer wheel (32) that is away from the first transfer wheel (31).

4. A high-position smoke outlet device according to claim 3, characterized in that: A stop block (322) for stopping cigarettes from continuing to rotate along with the second transfer wheel (32) is provided between the lowest point of the second transfer wheel (32) and the cigarette outlet conveyor belt (1).

5. The high-position smoke outlet device according to claim 4, characterized in that: A protective plate (323) is suspended on the surface of the smoke falling portion (321), and a smoke outlet is formed between the end of the protective plate (323) close to the smoke outlet conveyor belt (1) and the stop block (322).

6. A high-position smoke outlet device according to claim 5, characterized in that: It also includes a fixing plate (324) for mounting the guard plate (323), and one end of the guard plate (323) away from the smoke conveyor belt (1) is hinged to the fixing plate (324) via a hinge axis parallel to the axial direction of the second transfer wheel (32).

7. The high-position smoke outlet device according to claim 4, characterized in that: The smoke outlet gear box (3) further comprises two guide plates (33), the two guide plates (33) being respectively arranged on both sides of the smoke outlet conveyor belt (1); and the stop block (322) being arranged between the two guide plates (33).

8. The high-position smoke outlet device according to claim 1, characterized in that: The first transfer wheel (31) includes a smoke removal portion.

9. The high-position smoke outlet device according to claim 1, characterized in that: The first transfer wheel (31) includes a concave ring (311) and a convex ring (312) along the axial direction, and the outer diameter of the convex ring (312) is larger than the outer diameter of the concave ring (311); the concave ring (311) and the convex ring (312) are respectively provided with a plurality of grooves along the circumferential direction, and the grooves of the concave ring (311) are connected with the grooves of the convex ring (312) to form smoke grooves, and the grooves of the concave ring (311) are provided with adsorption holes connected with the adsorption air chamber (30).

10. The high-position smoke outlet device according to claim 9, characterized in that: The first transmission wheel (31) comprises two concave rings (311) and a convex ring (312), wherein the convex ring (312) is arranged between the two concave rings (311).

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