Differential device

Abstract

The utility model belongs to the technical field of tobaccos, and discloses a differential device. The differential device comprises a driving part, a cigarette pressing wheel and a sensor; the cigarette pressing wheel is rotatably arranged around the axis of the cigarette pressing wheel, the driving part is configured to drive the cigarette pressing wheel to rotate or be static, the rotating speed of the cigarette pressing wheel is adjustable, and the cigarette pressing wheel can abut against cigarette boxes placed on the upper conveying assembly so as to drive the cigarette boxes to be conveyed downstream or intercept the cigarette boxes; the sensor is used for sensing the cigarette boxes at the input device and is in communication connection with the driving part. According to the differential device, by adjusting the rotating speed of the cigarette pressing wheel, it is ensured that the time interval of cigarette boxes entering the input device is stable, the stable flow of the input device is maintained, the problem of missing scanning or excessive scanning of two-dimensional codes caused by cigarette box stacking or flow cutoff is solved, and the scanning success rate is remarkably increased. The differential device only needs to be additionally arranged in an existing cigarette production line, and complex transformation is not needed. The differential device can eliminate the interference of the speed difference on the scanning process, and improves the scanning success rate of the cigarette boxes.

Description

Technical Field

[0001] This utility model relates to the field of tobacco technology, and in particular to a differential speed device. Background Technology

[0002] In the cigarette production line, when cigarette boxes are conveyed from the upper conveyor to the lower conveyor, an input device is needed to input the information. When the conveying speeds of the upper and lower conveyors differ too much, it will affect the QR code scanning function of the input device. For example, when the conveying speed of the upper conveyor is much greater than that of the lower conveyor, cigarette boxes will accumulate at the input device, preventing them from being conveyed downstream in a timely manner after scanning. When the conveying speed of the upper conveyor is much less than that of the lower conveyor, the upstream cannot promptly deliver the cigarette boxes to the input device after scanning and downstream transport.

[0003] Therefore, a differential device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a differential speed device to eliminate the interference of upstream and downstream speed difference on the scanning process, maintain a stable flow rate at the input device, and improve the scanning success rate of cigarette boxes.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A differential device includes an input device disposed between an upper conveying assembly and a lower conveying assembly, the differential device being located upstream of the input device, and the differential device comprising:

[0007] Drive components;

[0008] The cigarette pressing wheel is rotatably arranged around its own axis. The driving member is configured to drive the cigarette pressing wheel to rotate, and the rotation speed of the cigarette pressing wheel is adjustable. The cigarette pressing wheel can press against the cigarette box placed on the upper conveying assembly to drive the cigarette box to be conveyed downstream or to intercept the cigarette box.

[0009] A sensor is used to sense the cigarette pack at the input device, and the sensor is communicatively connected to the drive unit.

[0010] Preferably, the differential device further includes:

[0011] The transmission assembly includes a driving wheel, a driven wheel, and a transmission belt. The driving wheel is located at the output end of the driving component, the driven wheel is located at one end of the smoke-pressing wheel, and the transmission belt is tensioned and sleeved between the driving wheel and the driven wheel.

[0012] Preferably, the transmission belt is engaged with both the driving pulley and the driven pulley.

[0013] Preferably, the differential device includes:

[0014] The mounting component is fixedly mounted on the upper conveying component, the fixed end of the driving component is fixed on the mounting component, and the smoke-pressing wheel is rotatably mounted on the mounting component.

[0015] Preferably, the mounting components include:

[0016] A fixing plate is disposed on the upper conveying assembly;

[0017] The mounting plate is positioned adjustablely on the fixed plate along the conveying direction of the upper conveying assembly. The fixed end of the driving component is fixed to the mounting plate, and the smoke-pressing wheel is rotatably mounted on the mounting assembly.

[0018] Preferably, the mounting assembly further includes a first locking member, one of the mounting plate and the fixing plate is provided with a first oblong hole, and the other is provided with a mounting hole. The first oblong hole extends along the conveying direction of the upper conveying assembly, and the first locking member passes through the first oblong hole and the mounting hole to fix the mounting plate to the fixing plate.

[0019] Preferably, the fixing plate is positioned adjustablely on the upper conveying assembly along the Z-axis.

[0020] Preferably, the mounting assembly further includes a second locking member, and the fixing plate is provided with a second oblong hole extending along the Z-axis direction. The second locking member passes through the second oblong hole and the upper conveying assembly to mount the fixing plate on the upper conveying assembly.

[0021] Preferably, the mounting assembly further includes a first dust cover, which is disposed on the mounting plate to cover the drive component.

[0022] Preferably, the mounting assembly further includes a second dust cover that covers the transmission assembly.

[0023] The beneficial effects of this utility model are:

[0024] This differential device includes a drive unit, a cigarette pressing wheel, and a sensor; the cigarette pressing wheel is rotatable about its own axis, the drive unit is configured to drive the cigarette pressing wheel to rotate or remain stationary, and the speed of the cigarette pressing wheel is adjustable. The cigarette pressing wheel can press against the cigarette boxes placed on the upper conveying assembly to drive the cigarette boxes to be conveyed downstream or to intercept the cigarette boxes; the sensor is used to sense the cigarette boxes at the input device, and the sensor is communicatively connected to the drive unit.

[0025] The sensor can detect the presence of cigarette boxes at the input device in real time, and feeds back the detected information to the drive unit, which adjusts its rotation speed accordingly. The drive unit drives the pressing wheel to rotate or stop, and the rotation speed of the pressing wheel can be adjusted by adjusting the rotation speed of the drive unit. When a cigarette box being input is detected at the input device, the pressing wheel slows down or stops, using the friction between itself and the cigarette box to intercept the upstream cigarette boxes and prevent excessive accumulation at the input device. When no cigarette box being input is detected at the input device, the pressing wheel accelerates its rotation, actively pushing the upstream cigarette boxes into the input device quickly, shortening the interval between cigarette arrivals.

[0026] This invention's differential speed device adjusts the rotational speed of the cigarette pressing roller to ensure a stable time interval between cigarette boxes entering the input device, maintaining a stable flow rate at the input device. This avoids QR code missed or over-scanning issues caused by cigarette box accumulation or flow interruption, significantly improving the scanning success rate. This differential speed device only needs to be installed in an existing cigarette production line, without complex modifications. Furthermore, this invention's differential speed device enables a flexible transition between the speeds of the upper and lower conveyor components, eliminating the interference of speed differences on the scanning process and improving the scanning success rate of cigarette boxes. Attached Figure Description

[0027] Figure 1 This is one of the structural schematic diagrams of the differential device provided by this utility model (with the first and second dust covers hidden);

[0028] Figure 2 This is the second structural schematic diagram of the differential device provided by this utility model;

[0029] Figure 3 This is the third structural schematic diagram of the differential device provided by this utility model.

[0030] In the picture:

[0031] 100. Pack of cigarettes; 200. Guide rail;

[0032] 1. Driving components;

[0033] 2. Smoke suppressor;

[0034] 3. Transmission components; 31. Driving pulley; 32. Driven pulley; 33. Transmission belt;

[0035] 4. Mounting components; 41. Fixing plate; 42. Mounting plate; 43. First locking element; 44. First oblong hole; 45. Second oblong hole;

[0036] 51. First dust cover; 52. Second dust cover. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] In the cigarette production line, when cigarette boxes are conveyed from the upper conveyor to the lower conveyor, an input device is needed to input the information. When the conveying speeds of the upper and lower conveyors differ too much, it will affect the QR code scanning function of the input device. For example, when the conveying speed of the upper conveyor is much greater than that of the lower conveyor, cigarette boxes will accumulate at the input device, preventing them from being conveyed downstream in a timely manner after scanning. When the conveying speed of the upper conveyor is much less than that of the lower conveyor, the upstream cannot promptly deliver the cigarette boxes to the input device after scanning and downstream transport.

[0042] This embodiment provides a differential device, such as Figures 1-3 As shown, an input device is provided between the upper conveying assembly and the lower conveying assembly, and the differential speed device is located upstream of the input device. This differential speed device includes a drive component 1, a cigarette pressing wheel 2, and a sensor. The cigarette pressing wheel 2 is rotatable about its own axis. The drive component 1 is configured to drive the cigarette pressing wheel 2 to rotate, and the rotational speed of the cigarette pressing wheel 2 is adjustable. The cigarette pressing wheel 2 can press against the cigarette boxes 100 placed on the upper conveying assembly to drive the cigarette boxes 100 downstream or intercept the cigarette boxes 100. The sensor is used to sense the cigarette boxes 100 at the input device, and the sensor is communicatively connected to the drive component 1.

[0043] The sensor can sense the presence of cigarette boxes 100 at the input device in real time to detect their presence and feeds back the detected information to the drive unit 1. The drive unit 1 adjusts its rotation speed accordingly. The drive unit 1 drives the pressing wheel 2 to rotate or remain stationary, and the rotation speed of the pressing wheel 2 can be adjusted by adjusting the rotation speed of the drive unit 1. When a cigarette box 100 being input is detected at the input device, the pressing wheel 2 decelerates or stops, using the friction between itself and the cigarette box 100 to intercept the upstream cigarette boxes 100 to prevent excessive accumulation at the input device. When no cigarette box 100 being input is detected at the input device, the pressing wheel 2 accelerates its rotation, actively pushing the upstream cigarette boxes 100 into the input device quickly, shortening the interval between cigarette box arrivals.

[0044] The differential speed device in this embodiment adjusts the rotational speed of the cigarette pressing roller 2 to ensure a stable time interval between the cigarette boxes 100 entering the input device, maintaining a stable flow rate at the input device. This avoids QR code missed or over-scanning issues caused by the accumulation or interruption of the cigarette box 100 flow, significantly improving the scanning success rate. This differential speed device only needs to be installed in the existing cigarette production line without complex modifications. The differential speed device in this embodiment enables a flexible transition between the speeds of the upper and lower conveyor components, eliminating the interference of speed differences on the scanning process and improving the scanning success rate of the cigarette boxes 100.

[0045] Specifically, such as Figure 1 As shown, the differential device also includes a transmission assembly 3, which includes a driving wheel 31, a driven wheel 32, and a transmission belt 33. The driving wheel 31 is located at the output end of the drive unit 1, and the driven wheel 32 is located at one end of the cigarette pressing wheel 2. The transmission belt 33 is tensioned and sleeved between the driving wheel 31 and the driven wheel 32. The driving wheel 31 is directly connected to the output end of the drive unit 1 and rotates synchronously with the output end of the drive unit 1. The transmission belt 33 is tensioned and sleeved between the driving wheel 31 and the driven wheel 32 so that the driving wheel 31 drives the driven wheel 32 to rotate synchronously. The driven wheel 32 is fixed to the cigarette pressing wheel 2 so as to drive the cigarette pressing wheel 2 to rotate synchronously. The drive unit 1 indirectly controls the speed of the cigarette pressing wheel 2 by actively adjusting the speed of the driving wheel 31, thereby adjusting the conveying speed of the cigarette box 100.

[0046] It should be noted that the drive component 1 can be a variable frequency motor, a servo motor or a stepper motor, and this embodiment does not limit it.

[0047] In one optional embodiment, the transmission belt 33 is engaged with both the driving pulley 31 and the driven pulley 32. By ensuring that the transmission belt 33 is engaged with both the driving pulley 31 and the driven pulley 32, power can be transmitted through engagement, eliminating slippage of the transmission belt 33 and ensuring that the power of the drive component 1 can be stably transmitted to the smoke-pressing wheel 2.

[0048] Optionally, such as Figure 1 , Figure 2 As shown, the differential device also includes a mounting assembly 4, which is fixedly mounted on the upper conveyor assembly. The fixed end of the drive component 1 is fixed to the mounting assembly 4, and the smoke-pressing wheel 2 is rotatably mounted on the mounting assembly 4. The mounting assembly 4 integrates the drive component 1 and the smoke-pressing wheel 2 into an independent module, allowing the differential device to be disassembled or replaced as a whole at the upper conveyor assembly, reducing installation and maintenance time.

[0049] Specifically, such as Figure 2 As shown, the mounting assembly 4 includes a fixing plate 41 and a mounting plate 42. The fixing plate 41 is mounted on the upper conveying assembly. Along the conveying direction of the upper conveying assembly, the mounting plate 42 is adjustablely positioned on the fixing plate 41. The fixed end of the drive component 1 is fixed to the mounting plate 42, and the cigarette pressing wheel 2 is rotatably mounted on the mounting plate 42. The fixing plate 41 can fix the entire mounting assembly 4 to the upper conveying assembly. By adjusting the position of the mounting plate 42 relative to the fixing plate 41, the relative position of the cigarette pressing wheel 2 and the upper conveying assembly can be further changed, thereby optimizing the acceleration or deceleration distance of the cigarette box 100 before entering the recording device according to actual needs. For example, moving the mounting plate 42 forward can move the position of the cigarette pressing wheel 2 forward, extending the buffer distance for interception of the cigarette box 100 and avoiding instantaneous accumulation; moving the mounting plate 42 backward can move the position of the cigarette pressing wheel 2 backward, shortening the pushing distance.

[0050] Specifically, the fixing plate 41 is fixed to the side wall of the guide rail 200 of the upper conveying assembly.

[0051] Optionally, such as Figure 2As shown, the mounting assembly 4 also includes a first locking member 43. One of the mounting plate 42 and the fixing plate 41 is provided with a first oblong hole 44, and the other is provided with a mounting hole. The first oblong hole 44 extends along the conveying direction of the upper conveying assembly. The first locking member 43 passes through the first oblong hole 44 and the mounting hole to fix the mounting plate 42 to the fixing plate 41. The first oblong hole 44, which extends along the conveying direction of the upper conveying assembly, provides adjustment freedom for the mounting plate 42, allowing the mounting plate 42 to slide relative to the fixing plate 41 within a certain range. After releasing the first locking member 43 so that the mounting plate 42 slides relative to the fixing plate 41 along the first oblong hole 44 to the target position, the first locking member 43 is then tightened so that the mounting plate 42 can be stably fixed to the fixing plate 41.

[0052] In one optional embodiment, the first oblong hole 44 is disposed on the fixing plate 41, and the mounting hole is disposed on the mounting plate 42. In another optional embodiment, the first oblong hole 44 is disposed on the mounting plate 42, and the mounting hole is disposed on the fixing plate 41. It should be noted that the specific arrangement method depends on the actual needs, and this embodiment does not limit it.

[0053] Optionally, the first locking element 43 may be a screw or a bolt.

[0054] In one optional embodiment, the fixing plate 41 is adjustablely positioned on the upper conveying assembly along the Z-axis. By adjusting the relative positions of the upper and lower conveying assemblies along the Z-axis, the distance between the pressing roller 2 and the upper conveying assembly can be adjusted to adapt to different types of cigarette boxes 100. This ensures that the pressing roller 2 can abut against the cigarette box 100 without damaging it, avoiding excessive compression that could deform the cigarette box 100 or insufficient pressure that could prevent the pressing roller 2 from effectively intercepting or accelerating the cigarette box 100.

[0055] Optionally, such as Figure 2 As shown, the mounting assembly 4 also includes a second locking member. The fixing plate 41 has a second oblong hole 45 extending along the Z-axis. The second locking member passes through the second oblong hole 45 and the upper conveying assembly to mount the fixing plate 41 onto the upper conveying assembly. The second oblong hole 45 extending along the Z-axis provides adjustment freedom for the fixing plate 41, allowing the mounting plate 42 to slide relative to the upper conveying assembly within a certain range. After releasing the second locking member and allowing the fixing plate 41 to slide relative to the upper conveying assembly along the second oblong hole 45 to the target position, the second locking member is then tightened to stably fix the fixing plate 41 onto the upper conveying assembly.

[0056] Specifically, such as Figure 2 , Figure 3As shown, the mounting assembly 4 also includes a first dust cover 51, which covers the drive component 1. By setting the first dust cover 51, the drive component 1 is isolated from the external environment, preventing common tobacco dust, paper scraps and other debris from contaminating the drive component 1, extending the service life of the drive component 1, and reducing downtime losses due to the need to clean or maintain the drive component 1.

[0057] Specifically, the first dust cover 51 is attached to the mounting plate 42 to cover the drive unit 1.

[0058] Optionally, such as Figure 2 , Figure 3 As shown, the mounting assembly 4 also includes a second dust cover 52, which covers the transmission assembly 3. By providing the second dust cover 52, the transmission assembly 3 is isolated from the external environment, preventing common tobacco dust, paper scraps and other debris from contaminating the transmission assembly 3, extending the service life of the transmission assembly 3, and reducing downtime losses due to the need to clean or maintain the transmission assembly 3.

[0059] Specifically, the second dust cover 52 is attached to the mounting plate 42 to cover the transmission assembly 3.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A differential device, wherein an input device is disposed between an upper conveying assembly and a lower conveying assembly, the differential device being disposed upstream of the input device, characterized in that, The differential device includes: Drive component (1); The cigarette pressing wheel (2) is rotatably arranged around its own axis. The driving member (1) is configured to drive the cigarette pressing wheel (2) to rotate. The rotation speed of the cigarette pressing wheel (2) is adjustable. The cigarette pressing wheel (2) can press against the cigarette box (100) placed on the upper conveying assembly to drive the cigarette box (100) to be conveyed downstream or to intercept the cigarette box (100). A sensor is used to sense the cigarette box (100) at the input device, and the sensor is communicatively connected to the drive unit (1).

2. The differential device according to claim 1, characterized in that, The differential device also includes: The transmission assembly (3) includes a drive wheel (31), a driven wheel (32) and a transmission belt (33). The drive wheel (31) is located at the output end of the drive member (1), the driven wheel (32) is located at one end of the smoke suppressor (2), and the transmission belt (33) is tensioned and sleeved between the drive wheel (31) and the driven wheel (32).

3. The differential device according to claim 2, characterized in that, The transmission belt (33) is engaged with both the driving pulley (31) and the driven pulley (32).

4. The differential device according to claim 2, characterized in that, The differential device also includes: The mounting component (4) is fixedly mounted on the upper conveying component, the fixed end of the driving component (1) is fixed on the mounting component (4), and the smoke-pressing wheel (2) is rotatably mounted on the mounting component (4).

5. The differential device according to claim 4, characterized in that, The installation component (4) includes: A fixing plate (41) is disposed on the upper conveying assembly; Mounting plate (42) is mounted on the fixing plate (41) in an adjustable position along the conveying direction of the upper conveying component, and the fixing end of the driving member (1) is fixed on the mounting plate (42).

6. The differential device according to claim 5, characterized in that, The mounting assembly (4) further includes a first locking member (43). One of the mounting plate (42) and the fixing plate (41) is provided with a first waist-shaped hole (44), and the other is provided with a mounting hole. The first waist-shaped hole (44) extends along the conveying direction of the upper conveying assembly. The first locking member (43) passes through the first waist-shaped hole (44) and the mounting hole to fix the mounting plate (42) to the fixing plate (41).

7. The differential device according to claim 5, characterized in that, The fixed plate (41) is adjustablely positioned on the upper conveying assembly along the Z-axis.

8. The differential device according to claim 7, characterized in that, The mounting assembly (4) further includes a second locking member. The fixing plate (41) is provided with a second waist-shaped hole (45) extending along the Z-axis direction. The second locking member passes through the second waist-shaped hole (45) and the upper conveying assembly to mount the fixing plate (41) on the upper conveying assembly.

9. The differential device according to claim 4, characterized in that, The mounting assembly (4) further includes a first dust cover (51) which covers the drive unit (1).

10. The differential device according to claim 4, characterized in that, The mounting assembly (4) also includes a second dust cover (52) which covers the transmission assembly (3).

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