Clamping driving assembly of cigarette detection device and cigarette detection device

Abstract

The utility model discloses a clamping driving assembly of a cigarette detection device and the cigarette detection device, and the clamping driving assembly comprises a transmission cylinder which comprises a first cylinder body, a cylinder cavity and a first transmission part; the driving assembly is in driving connection with the transmission cylinder; the pushing assembly comprises a second transmission part, a pushing rod and a first threaded part arranged on the pushing rod, and the first transmission part and the second transmission part are in sliding fit in the axis direction of the transmission cylinder and drive the pushing rod and the transmission cylinder to coaxially rotate; the pushing rod drives the clamping piece to be switched between the cigarette loading state and the cigarette clamping state by moving in the positive direction and the negative direction in the axis direction of the transmission cylinder. The matching piece is rotatably arranged in the cylinder cavity relative to the transmission cylinder and comprises a second thread part in thread fit with the first thread part; and the fixing piece is used for being matched with the matching piece and has a first state for limiting the matching piece to rotate around the axis of the threads of the first thread part and a second state for enabling the matching piece to rotate around the axis of the threads of the first thread part.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette detection, in particular to a clamping drive component of a cigarette detection device and a cigarette detection device. Background Art

[0002] In the prior art, it is necessary to perform various treatments on cigarettes and test the treatment effects. For example, an online laser punching device is used to punch holes in the filter tip of filter cigarettes to achieve accurate control of the ventilation volume of the cigarette filter. In production, due to the contamination of the lens cigarette in the laser light path, or the accumulation of dirt on the laser drum and the cigarette wheel, etc., the laser punching may cause problems such as aperture deviation or a small number of holes, resulting in the filter ventilation rate data exceeding the standard and causing fluctuations in the smoking taste. Therefore, it is necessary to test the punching effect. In view of this, the inventors have designed a clamping drive assembly for a cigarette detection device. The clamping drive assembly of the cigarette detection device can flexibly drive the clamping assembly of the cigarette detection device to flexibly switch the state of the clamping assembly, facilitate the loading and clamping of cigarettes, and facilitate the detection of cigarettes. Summary of the Invention

[0003] The purpose of the utility model is to provide a clamping drive component of a cigarette detection device that can flexibly drive the clamping component of the cigarette detection device so that the state of the clamping component can be flexibly switched, and a cigarette detection device using the clamping drive component of the cigarette detection device.

[0004] The first aspect of the present invention discloses a clamping drive assembly for a cigarette detection device, wherein the cigarette detection device includes a clamping assembly, wherein the clamping assembly includes a clamping member, wherein the clamping member has a cigarette-filling state in which a clamping cavity is opened to load cigarettes and a cigarette-clamping state in which the clamping cavity is contracted to clamp the cigarettes. The clamping drive assembly includes:

[0005] The transmission cylinder comprises a first cylinder body, a cylinder cavity provided inside the first cylinder body, and a first transmission part provided on the first cylinder body;

[0006] A driving assembly, drivingly connected to the transmission cylinder, for driving the transmission cylinder to rotate;

[0007] A pushing assembly comprising a second transmission portion, a pushing rod disposed within the barrel cavity, and a first threaded portion provided on the pushing rod, the axis of the thread being parallel to the axis of the transmission barrel; the first transmission portion and the second transmission portion being slidably engaged along the axis of the transmission barrel, and when the transmission barrel rotates, the pushing rod is driven to rotate coaxially with the transmission barrel through engagement with the first transmission portion and the second transmission portion; the pushing rod drives the clamping member to switch between a cigarette loading state and a cigarette clamping state by moving in a positive direction and a negative direction along the axis of the transmission barrel;

[0008] a mating piece, rotatably disposed in the cylinder cavity relative to the transmission cylinder and comprising a second threaded portion threadably mated with the first threaded portion;

[0009] The fixing member is used to cooperate with the matching member and has a first state for limiting the matching member from rotating around the axis of the thread of the first threaded portion and a second state for allowing the matching member to rotate around the axis of the thread of the first threaded portion.

[0010] In some embodiments, a limiting component is further included for limiting the movement of the fitting relative to the transmission cylinder along the axial direction of the transmission cylinder.

[0011] In some embodiments, the limiting assembly includes a first annular groove with a U-shaped cross-sectional shape of the groove body provided on the mating part, an annular retaining ring installed on the first annular groove, and a second annular groove with a U-shaped cross-sectional shape of the groove body provided at one end of the transmission cylinder, and the annular retaining ring is simultaneously inserted into the groove body of the second annular groove.

[0012] In some embodiments, the fixing member includes an electromagnetic clutch.

[0013] The second aspect of the present invention discloses a cigarette detection device, comprising a clamping assembly and any one of the clamping drive assemblies described above, the transmission cylinder further comprising a first connecting portion provided at one end of the first cylinder body; the pushing assembly further comprising a third transmission portion provided on the pushing rod; the clamping assembly comprises a clamping seat and a clamping part installed on the clamping seat, the clamping seat comprising a fourth transmission portion and a second connection portion detachably connected to the first connection portion, the third transmission portion and the fourth transmission portion slidingly cooperate along the axial direction of the transmission cylinder, and when the pushing rod rotates, the clamping seat and the pushing rod are driven to rotate coaxially through the cooperation of the third transmission portion and the fourth transmission portion, the clamping part has a cigarette loading state in which the clamping cavity is opened to load cigarettes and a cigarette clamping state in which the clamping cavity is reduced to clamp cigarettes, and the fixing part comprises an electromagnetic clutch for cooperating with the cooperating part.

[0014] In some embodiments, the clamping seat includes a plurality of guide holes extending radially, the clamping member includes a plurality of clamping blocks, the clamping blocks include a movable portion extending into the clamping seat and cooperating one-to-one with the guide holes, and a clamping portion extending out of the clamping seat for clamping cigarettes. When the push rod moves in a direction close to the clamping portion, the movable portions of the plurality of clamping blocks are pushed along the cooperating guide holes toward the radial outer side of the clamping seat to switch the clamping member to a cigarette loading state. The clamping assembly also includes an elastic member cooperating with the movable portions of the plurality of clamping blocks. The elastic force of the elastic member causes the movable portions of the plurality of clamping blocks to tend to move toward the radial inner side of the clamping seat.

[0015] In some embodiments, the clamping seat includes a second cylinder and an annular disk located on the end surface of the cylinder, the guide hole includes a strip-shaped through hole provided on the second cylinder, the movable part is inserted into the strip-shaped through hole, the clamping part extends out of the clamping seat from the through hole in the middle of the annular disk, and the movable part and the clamping part are connected by a step surface.

[0016] In some embodiments, a controller and a bearing seat assembly are also included, wherein the bearing seat assembly includes a bearing seat and a bearing disposed in the bearing seat, the transmission cylinder is installed in the bearing seat through the bearing, and the bearing seat is also provided with a position detection sensor connected to the controller signal, and the position detection sensor is used to detect the position of the push rod.

[0017] In some embodiments, the first transmission part includes a strip-shaped hole provided on the first cylinder, the second transmission part includes an annular ring arranged around the transmission cylinder and a sliding column that slides with the strip-shaped hole and is fixedly connected to the annular ring and the push rod, and the position detection sensor is used to detect the position of the annular ring.

[0018] In some embodiments, the bearing seat includes a mounting hole located radially outside the annular ring, and the position detection sensor includes a first photoelectric detection switch and a second photoelectric detection switch arranged in the mounting hole. Along the axial direction of the transmission cylinder, the annular ring is located between the first photoelectric detection switch and the second photoelectric detection switch.

[0019] The clamping assembly of the cigarette detection device provided by the present invention can be configured to flexibly switch between a cigarette loading state and a cigarette clamping state by switching the fixing member to a first state and driving the transmission cylinder to rotate in different directions, thereby causing the push rod to move in a positive direction or a negative direction along the axis of the transmission cylinder. Simultaneously, when the fixing member is switched to a second state, the rotation of the transmission cylinder can cause the push rod and the mating member to rotate while maintaining a constant axial position.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1This is a schematic cross-sectional view of a portion of the structure of a cigarette detection device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the mounting bracket according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of a mounting block according to an embodiment of the present utility model;

[0025] Figure 4 for Figure 3 A schematic structural diagram of the mounting block shown in another angle;

[0026] Figure 5 This is a schematic structural diagram of a matching piece according to an embodiment of the present utility model;

[0027] Figure 6 for Figure 5 A schematic structural diagram of the matching piece from another angle shown;

[0028] Figure 7 for Figure 5 A schematic cross-sectional structural diagram of the matching member shown;

[0029] Figure 8 This is a schematic structural diagram of a push rod according to an embodiment of the present utility model;

[0030] Figure 9 for Figure 8 A schematic structural diagram of the push rod at another angle shown;

[0031] Figure 10 This is a schematic structural diagram of a transmission cylinder according to an embodiment of the present utility model;

[0032] Figure 11 for Figure 10 A schematic cross-sectional view of the transmission cylinder shown;

[0033] Figure 12 This is a schematic structural diagram of a sliding column according to an embodiment of the present utility model;

[0034] Figure 13 for Figure 12 A schematic structural diagram of the sliding column from another angle shown;

[0035] Figure 14 for Figure 12 The cross-sectional structural diagram of the sliding column shown;

[0036] Figure 15 This is a schematic structural diagram of a clamping seat according to an embodiment of the present utility model;

[0037] Figure 16 for Figure 15A schematic structural diagram of the clamping seat from another angle is shown;

[0038] Figure 17 for Figure 15 A schematic cross-sectional view of the clamping seat shown;

[0039] Figure 18 This is a schematic structural diagram of a dust cover according to an embodiment of the present utility model;

[0040] Figure 19 for Figure 18 The schematic cross-sectional view of the dust cover shown;

[0041] Figure 20 This is a structural diagram of a bearing seat according to an embodiment of the present utility model;

[0042] Figure 21 for Figure 20 A structural schematic diagram of the bearing seat from another angle shown;

[0043] Figure 22 for Figure 20 The cross-sectional structural diagram of the bearing seat shown;

[0044] Figure 23 This is a schematic structural diagram of a mounting base according to an embodiment of the present utility model;

[0045] Figure 24 for Figure 23 A schematic structural diagram of the mounting base from another angle shown;

[0046] Figure 25 for Figure 23 A schematic structural diagram of the mounting base from another angle shown;

[0047] Figure 26 for Figure 23 A schematic structural diagram of the mounting base from another angle shown;

[0048] Figure 27 for Figure 23 The cross-sectional structural diagram of the bearing seat shown;

[0049] Figure 28 This is a structural diagram of a cigarette detection device according to another embodiment of the present invention;

[0050] Figure 29 for Figure 28 An exploded view of a portion of the structure of the cigarette detection device shown;

[0051] Figure 30 for Figure 28 An exploded view of a portion of the structure of the cigarette detection device shown;

[0052] Figure 31 for Figure 28 A schematic structural diagram of a mounting base for a cigarette detection device is shown;

[0053] Figure 32 for Figure 28 A schematic structural diagram of the mounting base of the cigarette detection device shown in FIG.

[0054] Figure 33 for Figure 28 The schematic structural diagram of the annular ring of the cigarette detection device shown;

[0055] Figure 34 for Figure 28 A schematic structural diagram of the matching parts of the cigarette detection device shown;

[0056] Figure 35 for Figure 28 A schematic structural diagram of a push rod of a cigarette detection device is shown;

[0057] Figure 36 for Figure 28 A schematic structural diagram of a transmission cylinder of a cigarette detection device shown;

[0058] Figure 37 for Figure 28 A schematic structural diagram of a clamping seat of a cigarette detection device is shown;

[0059] Figure 38 for Figure 28 A schematic structural diagram of a clamping block of a cigarette detection device is shown;

[0060] Figure 39 for Figure 28 The structure diagram of the clamping block of the cigarette detection device shown in FIG. 1 is another perspective view. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0063] In the description of the present invention, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0064] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] As shown in the figure, the clamping drive assembly of the cigarette detection device of this embodiment includes a transmission cylinder, a drive assembly, a push assembly, a mating component, and a fixing component. The cigarette detection device includes a clamping assembly, which includes a clamping member. The clamping member has a cigarette-loading state, in which the clamping cavity is open to load the cigarette, and a cigarette-clamping state, in which the clamping cavity is contracted to clamp the cigarette.

[0067] The transmission cylinder 3 includes a first cylinder body 31 , a cylinder cavity 32 provided inside the first cylinder body 31 , and a first transmission portion 33 provided on the first cylinder body 31 .

[0068] The drive assembly is drivably connected to the transmission cylinder 3 and is used to drive the transmission cylinder 3 to rotate. In the embodiment shown in the figure, the drive assembly includes a motor 11, a first transmission wheel 12, a second transmission wheel 14, and a belt connecting the first transmission wheel 12 and the second transmission wheel 14. The motor is mounted on the mounting base 7, and the motor drives the first transmission wheel 12 to rotate. The belt transmits power to the second transmission wheel 14, which then drives the transmission cylinder 3 to rotate. In the embodiment shown in the figure, the transmission cylinder is provided with a keyway, and the second transmission wheel is provided with a transmission key that mates with the keyway on the transmission cylinder 3. The second transmission wheel drives the transmission cylinder to rotate through the engagement of the transmission key and the keyway.

[0069] The pushing assembly includes a second transmission part, a pushing rod 6 arranged in the cylinder cavity 32, a third transmission part 63 arranged on the pushing rod 6, and a first threaded part 61 provided on the pushing rod 6, the axis of the thread of which is parallel to the axis of the transmission cylinder. The first transmission part 33 and the second transmission part slide together along the axial direction of the transmission cylinder, and when the transmission cylinder 3 rotates, the pushing rod 6 and the transmission cylinder 3 are driven to rotate coaxially through the cooperation of the first transmission part 33 and the second transmission part. The first transmission part 33 and the second transmission part can transmit torque and slide relative to each other. In some embodiments, one of the first transmission part and the second transmission part includes a slide groove, and the other includes a sliding block that cooperates with the slide groove. In the embodiment shown in the figure, the first transmission part includes a slide groove extending axially of the first cylinder body 31, and the second transmission part includes an annular ring 91, a sliding column 92 fixedly connected to the annular ring 91, and a connecting hole fixedly connected to the sliding column 92 on the pushing rod 6. In the embodiment shown in the figure, the push rod includes multiple sliding posts 92 distributed circumferentially, and multiple connecting holes distributed circumferentially on the push rod. Each connecting hole is fixedly connected to a sliding post 92 via a threaded connection or other means. During operation, the transmission cylinder transmits torque to the sliding posts via the chute. The sliding posts then transmit the torque to the connecting holes on the push rod, causing the push rod to rotate. Simultaneously, the sliding posts can move axially along the transmission cylinder relative to the chute.

[0070] The mating member 2 is rotatably disposed within the barrel cavity 32 relative to the transmission barrel 3 and includes a second threaded portion 21 that is threadably engaged with the first threaded portion 61. The fixing member 17 is used to engage with the mating member 2. The fixing member 17 has a first state that restricts the mating member 2 from rotating about the axis of the thread of the first threaded portion 61 and a second state that allows the mating member 2 to rotate about the axis of the thread of the first threaded portion 61. In the embodiment shown in the figure, the fixing member includes an electromagnetic clutch, which includes a first part and a second part that are relatively rotatable. The first part is mounted on the mounting seat 7 via the mounting bracket 16 and the mounting block 15, and the second part is fixedly connected to the mating member 2. The fixing member 17 can be switched between the first state and the second state by connecting and disconnecting the first and second parts.

[0071] When the fixing member 17 is switched to the first state and the mating member 2 is restricted from rotating, the push rod 6 is driven to rotate by the transmission cylinder. The first threaded portion 61 of the push rod engages the second threaded portion of the mating member 2, creating a motion similar to a screw-nut mechanism, causing the push rod to move along its axis. When the drive assembly drives the transmission cylinder to rotate in different directions, the drive cylinder also drives the push rod in different directions. Under the influence of the second threaded portion of the mating member 2, which is restricted from rotating, the push rod can move in either the forward or reverse direction, thereby driving the clamping member to switch between the cigarette loading state and the cigarette clamping state. When the fixing member 17 is switched to the second state, the fitting member 2 is not restricted from rotating, and the fitting member 2 can rotate around the axis of the thread of the first threaded portion 61, that is, it can rotate relative to the transmission cylinder, so that when the push rod 6 is driven to rotate by the transmission cylinder, the fitting member 2 can rotate with the push rod, the push rod does not move, and the push rod drives the clamping seat, the clamping member and the cigarette to rotate, so that the outer peripheral surface of the cigarette can be fully detected by the detection component of the cigarette detection device, such as the camera detection device 18 shown in the figure.

[0072] The clamping drive assembly of the cigarette detection device of this embodiment can cause the push rod to move in either the positive or negative direction along the axis of the transmission cylinder by switching the fixing member to the first state and driving the transmission cylinder to rotate in different directions. This allows the clamping member to flexibly switch between a cigarette loading state and a cigarette clamping state, thereby facilitating cigarette loading and clamping operations. Simultaneously, when the fixing member is switched to the second state, the rotation of the transmission cylinder can cause the push rod and the mating member to rotate while maintaining a constant axial position.

[0073] In some embodiments, the cigarette detection device further includes a limiting assembly for limiting the movement of the mating component 2 relative to the transmission cylinder along the axis of the transmission cylinder 3. In the embodiment shown in the figure, the limiting assembly includes a first annular groove 22 with a U-shaped groove cross-section on the mating component 2, an annular retaining ring 23 mounted on the first annular groove 22, and a second annular groove 35 with a U-shaped groove cross-section at one end of the transmission cylinder 3. The annular retaining ring 23 is simultaneously inserted into the groove body of the second annular groove 35. The second annular groove 35 is formed by a groove 351 at the end of the transmission cylinder 3 and a washer 352 mounted on the end of the transmission cylinder 3. When the cigarette to be clamped is rotated so that all parts of its outer circumference are fully inspected by the detection component, the fixing member 17 switches to the second state, the mating member 2 is not restricted from rotation, the mating member 2 can rotate relative to the transmission cylinder, the push rod 6 is driven to rotate by the transmission cylinder, and the mating member 2 rotates with the push rod. If the mating member is not restricted by the restriction assembly, the mating member 2 and the push rod may move axially, which may affect the clamping member, for example, causing the clamping member to switch to the cigarette loading state, causing the cigarette to loosen. In this embodiment, the restriction assembly is provided to restrict the movement of the mating member 2 relative to the transmission cylinder along the axis of the transmission cylinder 3. It can limit the axial movement of the mating member and the push rod when the cigarette is rotated and inspected, and prevent the push rod and the mating member from interfering with the clamping member.

[0074] In some embodiments, a cigarette detection device is also disclosed. The cigarette detection device of this embodiment includes a clamping assembly and any of the above-mentioned clamping drive assemblies.

[0075] The transmission cylinder 3 includes a first cylinder 31 , a cylinder cavity 32 provided inside the first cylinder 31 , a first transmission portion 33 provided on the first cylinder 31 , and a first connecting portion 34 provided at one end of the first cylinder 31 .

[0076] The drive assembly is drivably connected to the transmission cylinder 3 and is used to drive the transmission cylinder 3 to rotate. In the embodiment shown in the figure, the drive assembly includes a motor 11, a first transmission wheel 12, a second transmission wheel 14, and a belt connecting the first transmission wheel 12 and the second transmission wheel 14. The motor is mounted on the mounting base 7, and the motor drives the first transmission wheel 12 to rotate. The belt transmits power to the second transmission wheel 14, which then drives the transmission cylinder 3 to rotate. In the embodiment shown in the figure, the transmission cylinder is provided with a keyway, and the second transmission wheel is provided with a transmission key that mates with the keyway on the transmission cylinder 3. The second transmission wheel drives the transmission cylinder to rotate through the engagement of the transmission key and the keyway.

[0077] The pushing assembly includes a second transmission part, a pushing rod 6 arranged in the cylinder cavity 32, a third transmission part 63 arranged on the pushing rod 6, and a first threaded part 61 provided on the pushing rod 6, the axis of the thread of which is parallel to the axis of the transmission cylinder. The first transmission part 33 and the second transmission part slide together along the axial direction of the transmission cylinder, and when the transmission cylinder 3 rotates, the pushing rod 6 and the transmission cylinder 3 are driven to rotate coaxially through the cooperation of the first transmission part 33 and the second transmission part. The first transmission part 33 and the second transmission part can transmit torque and slide relative to each other. In some embodiments, one of the first transmission part and the second transmission part includes a slide groove, and the other includes a sliding block that cooperates with the slide groove. In the embodiment shown in the figure, the first transmission part includes a slide groove extending axially of the first cylinder body 31, and the second transmission part includes an annular ring 91, a sliding column 92 fixedly connected to the annular ring 91, and a connecting hole fixedly connected to the sliding column 92 on the pushing rod 6. In the embodiment shown in the figure, the push rod includes multiple sliding posts 92 distributed circumferentially, and multiple connecting holes distributed circumferentially on the push rod. Each connecting hole is fixedly connected to a sliding post 92 via a threaded connection or other means. During operation, the transmission cylinder transmits torque to the sliding posts via the chute. The sliding posts then transmit the torque to the connecting holes on the push rod, causing the push rod to rotate. Simultaneously, the sliding posts can move axially along the transmission cylinder relative to the chute.

[0078] The clamping assembly includes a clamping seat 4 and a clamping member 5 mounted on the clamping seat 4. The clamping seat 4 includes a second connecting portion 41 detachably connected to the first connecting portion 34 and a fourth transmission portion 42 provided on the clamping seat 4. The third transmission portion 63 and the fourth transmission portion 42 slide together along the axial direction of the transmission cylinder, and when the push rod 6 rotates, the third transmission portion 63 and the fourth transmission portion 42 cooperate to drive the clamping seat 4 to rotate coaxially with the push rod 6. The cooperation between the third transmission portion 63 and the fourth transmission portion 42 is similar to that of the first and second transmission portions, one of which includes a chute and the other includes a sliding block that cooperates with the chute. In the embodiment shown in the figure, the third transmission portion includes a chute provided on the push rod, the fourth transmission portion 42 includes a transmission hole provided on the clamping seat 4 and a transmission pin inserted into the transmission hole and the chute of the fourth transmission portion, the transmission pin can slide together relative to the chute of the fourth transmission portion, and the fourth transmission portion transmits torque to the transmission hole through the cooperation of the chute and the transmission pin, thereby driving the clamping seat 4 to rotate. In this embodiment, the clamping seat 45 is detachably connected via the second connecting portion 41 and the first connecting portion 34, enabling convenient installation of the clamping seat 45 on the transmission cylinder and convenient installation or separation of the clamping member from the clamping seat 45 after the clamping seat 45 is removed. After the clamping seat is installed on the transmission cylinder, since the push rod can reliably transmit torque to the clamping seat 45, the connection between the clamping seat 45 and the transmission cylinder no longer requires reliable torque transmission. Therefore, the detachable connection between the clamping seat 45 and the transmission cylinder can be configured as a simple threaded connection, reducing connection requirements and allowing for convenient and simple removal of the clamping seat 45 from the transmission cylinder.

[0079] The clamping member 5 has a cigarette-loading state, in which the clamping cavity is open to load cigarettes, and a cigarette-clamping state, in which the clamping cavity is contracted to clamp cigarettes. The clamping member 5 is mounted on a clamping seat and is used to clamp cigarettes. The clamping member 5 has a cigarette-holding cavity. In the embodiment shown in the figure, the clamping member 5 includes multiple clamping blocks that surround and form the cigarette-holding cavity. The push rod 6 switches the clamping member 5 between the cigarette-loading state and the cigarette-clamping state by moving in both positive and negative directions along the axis of the transmission cylinder 3. Movement of the push rod 6 in one direction along its axis is considered positive movement, while movement in the opposite direction along its axis is considered reverse movement. In the embodiment shown in the figure, movement of the push rod toward the clamped cigarette is considered positive movement, while movement away from the cigarette is considered reverse movement. When the push rod moves in the positive direction, the clamping cavity of the clamping member 5 is driven to open, so that cigarettes can be loaded or removed. When the push rod moves in the negative direction, the clamping cavity of the clamping member 5 is driven to become smaller, so that the loaded cigarettes can be clamped.

[0080] The mating member 2 is rotatably disposed within the barrel cavity 32 relative to the transmission barrel 3 and includes a second threaded portion 21 that is threadably engaged with the first threaded portion 61. The fixing member 17 is used to engage with the mating member 2. The fixing member 17 has a first state that restricts the mating member 2 from rotating about the axis of the thread of the first threaded portion 61 and a second state that allows the mating member 2 to rotate about the axis of the thread of the first threaded portion 61. In the embodiment shown in the figure, the fixing member includes an electromagnetic clutch, which includes a first part and a second part that are relatively rotatable. The first part is mounted on the mounting seat 7 via the mounting bracket 16 and the mounting block 15, and the second part is fixedly connected to the mating member 2. The fixing member 17 can be switched between the first state and the second state by connecting and disconnecting the first and second parts.

[0081] When the fixing member 17 is switched to the first state and the mating member 2 is restricted from rotating, the push rod 6 is driven to rotate by the transmission cylinder. The first threaded portion 61 of the push rod engages the second threaded portion of the mating member 2, creating a motion similar to a screw-nut mechanism, causing the push rod to move along its axis. When the drive assembly drives the transmission cylinder to rotate in different directions, the drive cylinder also drives the push rod in different directions. Under the influence of the second threaded portion of the mating member 2, which is restricted from rotating, the push rod can move in either the forward or reverse direction, thereby driving the clamping member to switch between the cigarette loading state and the cigarette clamping state. When the fixing member 17 is switched to the second state, the fitting member 2 is not restricted from rotating, and the fitting member 2 can rotate around the axis of the thread of the first threaded portion 61, that is, it can rotate relative to the transmission cylinder, so that when the push rod 6 is driven to rotate by the transmission cylinder, the fitting member 2 can rotate with the push rod, the push rod does not move, and the push rod drives the clamping seat, the clamping member and the cigarette to rotate, so that the outer peripheral surface of the cigarette can be fully detected by the detection component of the cigarette detection device, such as the camera detection device 18 shown in the figure.

[0082] The cigarette detection device of this embodiment switches the fixing member 17 between a first state and a second state, and drives the transmission cylinder to rotate in different directions, thereby enabling the clamping member 5 to switch between a cigarette loading state and a cigarette clamping state. This facilitates the operations of loading and clamping a cigarette 100, and allows the cigarette to automatically rotate after being clamped, allowing different parts of the cigarette to be easily detected by the detection component. Furthermore, the clamping seat 4 can be conveniently and detachably connected to the transmission cylinder 3, thereby facilitating the installation and removal of the clamping member 5. Once connected to the transmission cylinder 3, the clamping seat 4 can reliably drive the clamping member 5 and the cigarette to rotate coaxially with the transmission cylinder 3.

[0083] In some embodiments, the first connecting portion 34 and the second connecting portion 41 are detachably connected by threaded engagement.

[0084] In some embodiments, as shown in the figure, the clamping seat 4 includes a plurality of guide holes 43 extending radially, and the clamping member 5 includes a plurality of clamping blocks 51. The clamping blocks 51 include a movable portion 511 that extends into the clamping seat 4 and engages with the guide holes 43 one-to-one, and a clamping portion that extends out of the clamping seat 4 for clamping a cigarette. The guide holes 43 extend radially from the clamping seat 4. In the embodiment shown in the figure, the guide holes 43 radially penetrate the clamping seat 4. In some embodiments not shown in the figure, the guide holes 43 may not penetrate the clamping seat 4, but may extend radially from the clamping seat 4 to the middle of the wall of the clamping seat 4 and then no longer extend. The movable portion 511 of each clamping block 51 engages with a guide hole 43 and can move radially relative to the guide hole 43. When the push rod 6 moves toward the clamping portion, it simultaneously pushes the movable portions 511 of the multiple clamping blocks 51 toward the radially outer side of the clamping seat 4 along the guide holes 43 in which the movable portions 511 engage, thereby switching the clamping member 5 to the cigarette loading state. The clamping assembly further includes an elastic member that engages with the movable portions 511 of the multiple clamping blocks 51. The elastic force of the elastic member causes the movable portions 511 of the multiple clamping blocks 51 to move radially inwardly of the clamping seat 4. The elastic member, for example, comprises an elastic ring. In the embodiment shown in the figure, where the guide hole 43 radially penetrates the clamping seat 4, the movable portions of the clamping blocks are further provided with a first mounting groove 513, and the clamping seat is provided with an annular second mounting groove 44. After the clamping block is mounted on the clamping seat, the annular elastic ring is mounted in the second mounting groove and simultaneously in the first mounting groove 513, with the elastic force of the elastic ring directed radially inwardly. After the clamping cavity is loaded with a cigarette and the push rod leaves the clamping block, the elastic force of the elastic ring causes the clamping block to move radially inward of the clamping seat, clamping the cigarette. When the push rod moves closer to the clamping block, the push rod pushes the clamping block, overcoming the elastic force of the elastic ring and moving the clamping block radially outward of the clamping seat, switching the clamping member to the cigarette loading state.

[0085] In some embodiments, the clamping seat 4 comprises a second cylindrical body 451 and an annular disk 452 located on the end surface of the cylindrical body. The guide hole 43 comprises a strip-shaped through-hole provided on the second cylindrical body 451, i.e., a strip-shaped through-hole extending radially through the second cylindrical body 451. The movable portion 511 is inserted into the strip-shaped through-hole, and the clamping portion 512 extends out of the clamping seat 4 through the through-hole in the center of the annular disk. The movable portion 511 and the clamping portion 512 are connected by a stepped surface. In the embodiment shown in the figure, the stepped surface extends into the guide hole 43. The guide hole 43 guides the movement of the movable portion within the guide hole through contact with the stepped surface, thereby allowing the clamping seat to stably switch between a cigarette-loading state and a cigarette-clamping state.

[0086] In some embodiments, as shown in the figure, at least one of the surfaces of the push rod 6 that mate with the movable portion 511 and the surfaces of the movable portion 511 that mate with the push rod is a wedge-shaped surface. In the embodiment shown in the figure, both the surfaces of the push rod 6 and the surfaces of the movable portion 511 are wedge-shaped surfaces at the mating point. As shown in the figure, the end of the push rod is a tapered portion, and the outer surface of the tapered portion is an inclined surface. The movement of the push rod, through the action of the wedge-shaped surface, reliably pushes the movable portion 511 to move radially along the clamping seat.

[0087] In some embodiments, as shown in the figures, the cigarette detection device further includes a controller and a bearing seat assembly. The bearing seat assembly includes a bearing seat 8 and bearings disposed therein. The transmission cylinder 3 is mounted within the bearing seat via the bearings. In the illustrated embodiment, the device includes a first bearing 93 and a second bearing 94. The bearing seat is provided with a first bearing cavity 831 and a second bearing cavity 832. The first bearing 93 and the second bearing 94 are mounted within the first bearing cavity 831 and the second bearing 94, respectively. The ends of the transmission cylinder 3 are mounted on the bearing seat via the first bearing 93 and the second bearing 94. The bearing seat is also provided with a position detection sensor connected to the controller signal. The position detection sensor is used to detect the position of the push rod 6. This embodiment, by providing a detection sensor, can detect the axial position of the push rod 6 along the transmission cylinder, thereby determining whether the push rod is currently pushing the clamping member and the clamping member's status. In some embodiments, the axial position of the push rod 6 can also be detected and controlled to adjust the size of the clamping member's clamping cavity and control the clamping force applied to the cigarette.

[0088] In some embodiments, the first transmission portion 33 includes a strip-shaped hole provided on the first cylinder 31, and the second transmission portion includes an annular ring 91 provided around the transmission cylinder 3 and a sliding post 92 that slides with the strip-shaped hole and is fixedly connected to the push rod 6 and the annular ring. The position detection sensor is used to detect the position of the annular ring 91. In the embodiment shown in the figure, a screw hole is provided on the sliding post 92, and a countersunk hole is provided on the annular ring. The annular ring and the sliding post 92 can be connected by screws passing through the countersunk hole of the annular ring and threadedly engaging with the screw hole of the sliding post 92. Since the annular ring 91 is fixedly connected to the push rod via the sliding block, detecting the axial position of the annular ring can reflect the axial position of the push rod.

[0089] In some embodiments, the bearing seat includes a mounting hole 82 located radially outward of the annular ring 91. The position detection sensor includes a first photoelectric detection switch 811 and a second photoelectric detection switch 812 disposed within the mounting hole 82. Along the axial direction of the transmission cylinder 3, the annular ring 91 is located between the first photoelectric detection switch 811 and the second photoelectric detection switch 812. The first photoelectric detection switch 811 and the second photoelectric detection switch 812 can be axially disposed at positions corresponding to the axial limit positions of the push rod. When the push rod moves axially in the positive direction or in the reverse direction and is detected by the first photoelectric detection switch 811 or the second photoelectric detection switch 812, it indicates that the push rod has reached the axial limit position, and the controller can stop the rotation of the transmission cylinder, causing the push rod to stop moving. The positions of the first photoelectric detection switch 811 and the second photoelectric detection switch 812 along the axial direction of the transmission cylinder can be adjusted, thereby adjusting the axial limit position of the push rod.

[0090] In some embodiments, as shown, the cigarette detection device further includes a dust cover 95, which is threadedly engaged with the bearing housing and surrounds the clamping assembly. The dust cover 95 surrounds the clamping assembly, protecting the cigarette detection device from dust intrusion and helping to ensure long-term, reliable operation of the device.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for protection of the utility model.

Claims

1. A clamping drive assembly for a cigarette detection device, the cigarette detection device comprising a clamping assembly, the clamping assembly comprising a clamping member, the clamping member having a cigarette-loading state in which a clamping cavity is opened to load a cigarette and a cigarette-clamping state in which the clamping cavity is contracted to clamp the cigarette, characterized in that: The clamping drive assembly comprises: The transmission cylinder comprises a first cylinder body, a cylinder cavity provided inside the first cylinder body, and a first transmission part provided on the first cylinder body; A driving assembly, drivingly connected to the transmission cylinder, for driving the transmission cylinder to rotate; A pushing assembly comprising a second transmission portion, a pushing rod disposed within the barrel cavity, and a first threaded portion provided on the pushing rod, the axis of the thread being parallel to the axis of the transmission barrel; the first transmission portion and the second transmission portion being slidably engaged along the axis of the transmission barrel, and when the transmission barrel rotates, the pushing rod is driven to rotate coaxially with the transmission barrel through engagement with the first transmission portion and the second transmission portion; the pushing rod drives the clamping member to switch between a cigarette loading state and a cigarette clamping state by moving in a positive direction and a negative direction along the axis of the transmission barrel; a mating piece, rotatably disposed in the cylinder cavity relative to the transmission cylinder and comprising a second threaded portion threadably mated with the first threaded portion; The fixing member is used to cooperate with the matching member and has a first state for limiting the matching member from rotating around the axis of the thread of the first threaded portion and a second state for allowing the matching member to rotate around the axis of the thread of the first threaded portion.

2. The clamping drive assembly of the cigarette detection device according to claim 1, characterized in that: It also includes a limiting component for limiting the movement of the fitting relative to the transmission cylinder along the axial direction of the transmission cylinder.

3. The clamping drive assembly of the cigarette detection device according to claim 2, characterized in that: The limiting assembly includes a first annular groove with a U-shaped cross-sectional shape on the mating part, an annular retaining ring installed on the first annular groove, and a second annular groove with a U-shaped cross-sectional shape on one end of the transmission cylinder, and the annular retaining ring is simultaneously inserted into the groove body of the second annular groove.

4. The clamping drive assembly of the cigarette detection device according to claim 1, characterized in that: The fixing member includes an electromagnetic clutch.

5. A cigarette detection device, characterized in that: It includes a clamping assembly and a clamping drive assembly as described in any one of claims 1 to 4, the transmission cylinder also includes a first connecting part provided at one end of the first cylinder body; the pushing assembly also includes a third transmission part provided on the pushing rod; the clamping assembly includes a clamping seat and a clamping part installed on the clamping seat, the clamping seat includes a fourth transmission part and a second connection part detachably connected to the first connection part, the third transmission part and the fourth transmission part slide and cooperate along the axial direction of the transmission cylinder, and when the pushing rod rotates, the clamping seat and the pushing rod are driven to rotate coaxially through the cooperation of the third transmission part and the fourth transmission part, the clamping part has a cigarette filling state in which the clamping cavity is opened to fill cigarettes and a cigarette clamping state in which the clamping cavity is reduced to clamp cigarettes, and the fixing part includes an electromagnetic clutch for cooperating with the mating part.

6. The cigarette detection device according to claim 5, characterized in that: The clamping seat includes a plurality of guide holes extending radially, and the clamping member includes a plurality of clamping blocks, and the clamping blocks include a movable portion extending into the clamping seat and cooperating with the guide holes one by one, and a clamping portion extending out of the clamping seat for clamping cigarettes. When the push rod moves in a direction close to the clamping portion, the movable portions of the plurality of clamping blocks are pushed to move along the cooperating guide holes toward the radial outer side of the clamping seat so that the clamping member switches to a cigarette loading state. The clamping assembly also includes an elastic member cooperating with the movable portions of the plurality of clamping blocks. The elastic force of the elastic member causes the movable portions of the plurality of clamping blocks to tend to move toward the radial inner side of the clamping seat.

7. The cigarette detection device according to claim 6, characterized in that: The clamping seat includes a second cylinder and an annular disk located on the end surface of the cylinder, the guide hole includes a strip-shaped through hole provided on the second cylinder, the movable part is inserted into the strip-shaped through hole, the clamping part extends out of the clamping seat from the through hole in the middle of the annular disk, and the movable part and the clamping part are connected by a step surface.

8. The cigarette detection device according to claim 5, characterized in that: It also includes a controller and a bearing seat assembly, the bearing seat assembly includes a bearing seat and a bearing arranged in the bearing seat, the transmission cylinder is installed in the bearing seat through the bearing, and the bearing seat is also provided with a position detection sensor connected to the controller signal, and the position detection sensor is used to detect the position of the push rod.

9. The cigarette detection device according to claim 8, characterized in that: The first transmission part includes a strip-shaped hole provided on the first cylinder, the second transmission part includes an annular ring arranged around the transmission cylinder and a sliding column that slides with the strip-shaped hole and is fixedly connected to the annular ring and the push rod, and the position detection sensor is used to detect the position of the annular ring.

10. The cigarette detection device according to claim 9, characterized in that: The bearing seat includes a mounting hole located radially outside the annular ring, and the position detection sensor includes a first photoelectric detection switch and a second photoelectric detection switch arranged in the mounting hole. Along the axial direction of the transmission cylinder, the annular ring is located between the first photoelectric detection switch and the second photoelectric detection switch.

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