Cigarette making and plug assembling machine

Abstract

The utility model provides a cigarette making and plug assembling machine. The cigarette making and plug assembling machine comprises a closing drum wheel which comprises a closing drum wheel body, and a closing drum wheel groove extending in the axial direction of the closing drum wheel body is formed in the periphery of the closing drum wheel body; the blowing device is located at the axial end of the closing drum wheel body and comprises an air blowing part, the air blowing part comprises an air blowing opening opposite to the axial end opening of the closing drum wheel groove, and the air blowing opening is configured to output blowing airflow towards the closing drum wheel groove in the axial direction of the closing drum wheel body. According to the cigarette making and plug assembling machine, the blowing and gathering device is arranged at the axial end of the closing drum wheel body, blowing and gathering airflow is output towards the closing drum wheel groove in the axial direction of the closing drum wheel body, cigarettes can be blown and gathered together by the blowing and gathering device at the position close to the cigarettes, accordingly, the cigarettes without filter tips can be accurately screened, and the reliability of the cigarette making and plug assembling machine can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of tobacco manufacturing equipment technology, and in particular to a cigarette making machine. Background Technology

[0002] A cigarette-making machine is generally used to splice filters and corresponding cigarettes to form cigarette packs, and then wrap the spliced ​​parts of the cigarette packs with tipping paper. Finally, the cigarette-making machine further processes the wrapped cigarette packs to form cigarettes that meet production requirements.

[0003] The cigarette making machine includes a separating drum, a merging drum, a bringing-to-close drum, and a slitting drum. The separating drum separates two cigarette segments along their axial direction and conveys them to the merging drum. On the merging drum, the filter tip located between the two segments along the cigarette's axial direction matches the corresponding two segments within the merging drum's groove. The merging drum then simultaneously conveys the matched filter tip and the two cigarette segments to the bringing-to-close drum, where the filter tip and the corresponding two cigarette segments are brought together tightly by the bringing-to-close drum's float ring to form a cigarette pack. After wrapping the joined parts of the cigarette pack with tipping paper, the slitting drum cuts the cigarette pack into two cigarettes.

[0004] In related technologies such as winding and splicing machines, Figure 1 As shown, the cigarette making machine includes a converging drum 200' and a blowing device 100'. The blowing device 100' is configured to blow together two cigarette segments 20' without filters 10' in the converging drum groove 201a' of the converging drum 200' under the action of a blowing airflow to form a filterless cigarette group.

[0005] The converging drum 200' includes a converging drum body 201', a converging drum groove 201a', and a flange 202'. The converging drum groove 201a' is located on the outer periphery of the converging drum body 201' and extends axially along the converging drum body 201'. The flange 202' is fixedly installed on the axially outer side of the converging drum body 201' and is spaced apart from the end of the converging drum groove 201a'. The flange 202' includes a plurality of flange vent holes 202a' spaced apart circumferentially. The plurality of flange vent holes 202a' are arranged one-to-one with the plurality of converging drum grooves 201a', and the ends of the flange vent holes 202a' and the corresponding converging drum grooves 201a' are arranged opposite each other along the axial direction of the converging drum body 201'. The blowing device 100' is located on the side of the flange 202' opposite to the converging drum body 201', and includes a detection device, a compression spring 102', a graphite sector block 103', a bracket 104', and a solenoid valve 105'. The graphite sector block 103' is detachably connected to the solenoid valve 105' via the bracket 104', and the graphite sector block 103' includes sector block air holes extending axially along the converging drum body 201'. The graphite sector block 103' is abutted against the end face of the flange 202' opposite to the converging drum body 201' via the compression spring 102'. The radial distance from the center of the sector block air hole to the axis of the converging drum body 201' is equal to the radial distance from the center of the flange air hole 202a' to the axis of the converging drum body 201'. When the axis of the sector-shaped block air hole coincides with the axis of the flange air hole 202a', the blowing airflow can enter the flange air hole 202a' through the sector-shaped block air hole, and then enter the converging drum groove 201a' corresponding to the flange air hole 202a'. The detection device is signal-connected to the solenoid valve 105' and is configured to detect whether there is a filter 10' in the converging drum groove 201a' and transmit the detection result to the solenoid valve 105'. The solenoid valve 105' controls the opening and closing of the blowing airflow according to the detection result. Thus, when the detection device detects that there is no filter 10' in the converging drum groove 201a', the solenoid valve 105' opens, and the blowing airflow enters the corresponding converging drum groove 201a' without the filter 10' through the sector-shaped block air hole and the flange air hole 202a', blowing the two cigarette sticks 20' together to form a filterless cigarette pack.

[0006] The slitting drum is located after the merging drum 200', where unfiltered cigarette packs are removed. However, because the merging drum 200' and the slitting drum are separated by multiple processes and are quite far apart, the unfiltered cigarette packs, after being blown together, are prone to dropping or getting stuck after traveling a long distance, thus affecting the stability of the cigarette-making machine.

[0007] In addition, such as Figure 1As shown, the blowing device 100' of the related technology blows the cigarette 20' together at the position where the converging drum 200' receives the cigarette 20'. At this time, the cigarette 20' is moving in a downward direction. The cigarette 20' needs to overcome its own weight and centripetal force to adhere to the surface of the converging drum groove 201a'. Under these circumstances, the blowing airflow is more likely to disturb the cigarette 20' and cause it to scatter, resulting in blockage or cigarette scattering, thereby reducing production efficiency.

[0008] In addition, the distance between the flange air hole 202a' and the cigarette 20' is relatively large. After the airflow is blown out through the flange air hole 202a', it is easy to disperse, resulting in poor force and accuracy in blowing the cigarette 20', thus affecting the blowing effect. Utility Model Content

[0009] The purpose of this disclosure is to provide a cigarette making machine that solves the problem in the related art where the filterless cigarettes blown by the blowing device in the converging drum groove are easily dropped or jammed after being transmitted over a long distance to the slitting drum, thus affecting the stability of the cigarette making machine.

[0010] The first aspect of this disclosure provides a winding machine, comprising:

[0011] A closing drum wheel, including a closing drum wheel body, wherein the outer periphery of the closing drum wheel body is provided with a closing drum wheel groove extending axially along the closing drum wheel body; and

[0012] A blowing device, located at the axial end of the approach drum wheel body, includes an air blowing section, the air blowing section including an air blowing port opposite to the axial port of the approach drum wheel groove, the air blowing port being configured to output a blowing airflow along the axial direction of the approach drum wheel body toward the approach drum wheel groove.

[0013] In some embodiments of the winding machine,

[0014] The approaching drum also includes a float ring, which is located at the axial end of the approaching drum body and is coaxially arranged with the approaching drum body. The float ring includes a float ring hole arranged circumferentially along the float ring, and the float ring hole is opposite to the axial port of the approaching drum groove.

[0015] The air inlet of the air blowing section is located on the side of the float ring away from the approach drum wheel body, and the radial distance from the center of the air inlet to the axis of the approach drum wheel body is equal to the radial distance from the center of the float ring hole to the axis of the approach drum wheel body.

[0016] In some embodiments of the winding machine,

[0017] The approaching drum also includes a roller device, which includes a roller and a roller arm. The roller is mounted on the roller arm and is configured to roll and rub against the float.

[0018] The air blowing unit is detachably and fixedly connected to the roller arm.

[0019] In some embodiments of the winding machine, the blowing device further includes a mounting portion detachably connected to the roller arm, and the air blowing portion detachably connected to the mounting portion.

[0020] In some embodiments of the winding machine,

[0021] The mounting part includes a first mounting hole, the air blowing part includes an air blowing pipe, the air blowing port is disposed at one axial end of the air blowing pipe, and the air blowing pipe is movably engaged with the first mounting hole along the axial direction of the first mounting hole.

[0022] The blowing device further includes a locking part configured to apply a locking force to the air blowing tube located in the first mounting hole, so that the air blowing part is detachably connected to the mounting part.

[0023] In some embodiments of the winding machine,

[0024] The mounting part further includes a second mounting hole, which intersects with the first mounting hole;

[0025] The locking part includes a locking threaded connector that is threadedly engaged with the second mounting hole and is configured to apply the locking force to the air blowing pipe by pressing the end face of the locking threaded connector against the side wall of the air blowing pipe.

[0026] In some embodiments of the winding machine, the mounting part includes:

[0027] The first mounting section includes the first mounting hole and the second mounting hole;

[0028] The second mounting section, connected to the end of the first mounting section, includes at least one third mounting hole; and

[0029] At least one threaded connector is provided corresponding to the at least one third mounting hole. The threaded connector passes through the corresponding third mounting hole and engages with the roller arm in a threaded manner, so that the mounting part is detachably connected to the roller arm through the at least one threaded connector.

[0030] In some embodiments of the winding machine,

[0031] The mounting portion includes a mounting groove, and when the mounting portion is connected to the roller arm, a portion of the float ring is located within the mounting groove; and / or,

[0032] The mounting portion includes at least one positioning surface configured to mate with the outer surface shape of a portion of the roller arm.

[0033] In some embodiments of the winding machine, the distance between the air inlet and the float ring along the axial direction of the approach drum body ranges from 0 to 0.1 mm.

[0034] In some embodiments of the winding machine,

[0035] The blowing device also includes a solenoid valve configured to control the flow rate of the blowing airflow delivered by the air nozzle;

[0036] The cigarette making machine also includes a converging drum, which includes a converging drum body. The outer periphery of the converging drum body is provided with a converging drum groove extending along the axial direction of the converging drum body. The converging drum body and the approaching drum body rotate synchronously in opposite directions to simultaneously transport the filter and the two cigarette sections corresponding to the filter into the approaching drum groove.

[0037] The winding machine also includes a detection device configured to detect whether there is a filter nozzle in the converging drum groove by detecting whether there is a filter nozzle at the converging drum groove. The solenoid valve is coupled to the detection device and configured to open or close according to the detection result of the detection device.

[0038] Based on the cigarette rolling machine provided in this disclosure, by setting the blowing device at the axial end of the approach drum wheel body, and setting the blowing device to include an air blowing section, the air blowing section including an air blowing port, the air blowing port being configured to output blowing airflow along the axial direction of the approach drum wheel body toward the approach drum wheel groove, it is beneficial to reduce the distance of transporting the filterless cigarette pack blown by the blowing airflow to the slitting drum wheel, which is beneficial to reduce phenomena such as cigarette dropping and cigarette jamming, thereby improving the stability of the cigarette rolling machine operation.

[0039] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:

[0041] Figure 1 A cross-sectional schematic diagram of the converging drum and blowing device of a coiling machine in related technologies;

[0042] Figure 2 This is a partial structural schematic diagram of a winding and splicing machine according to an embodiment of the present disclosure, which shows a closing drum and a blowing device;

[0043] Figure 3 for Figure 2 The diagram shown is a partial structural schematic of the winding and splicing machine, illustrating the installation position of the mounting part of the blow-gathering device.

[0044] Figure 4 for Figure 2 A partial structural diagram of the mounting section of the blower device of the coiling machine is shown.

[0045] Figures 1 to 4 In the figures, the labels represent:

[0046] 10', filter tip; 20', cigarette stick;

[0047] 100', Blowing device; 102', Compression spring; 103', Graphite sector block; 104', Support; 105', Solenoid valve; 200', Merging drum; 201', Merging drum body; 201a', Merging drum groove; 202', Flange; 202a', Flange vent.

[0048] 100. Blowing device; 110. Mounting part; 110a. Mounting groove; 111. First mounting section; 111a. First mounting hole; 111b. Second mounting hole; 112. Second mounting section; 112a. Third mounting hole; 113. Threaded connector; 120. Air blowing part; 121. Air blowing pipe; 121a. Air blowing port; 130. Solenoid valve; 200. Approaching drum; 201. Approaching drum body; 201a. Approaching drum groove; 202. Float ring; 2021. Float ring pressure plate; 202a. Float ring hole; 2022. Rubber connector; 203. Roller; 204. Roller arm. Detailed Implementation

[0049] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0051] In the description of this disclosure, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0052] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are generally based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0053] Figure 2 The direction indicated by the middle arrow is the direction of rotation of the drum wheel.

[0054] This disclosure provides a winding and joining machine. The winding and joining machine includes a gathering drum 200 and a blowing device 100. The gathering drum 200 includes a gathering drum body 201. A gathering drum groove 201a extending axially along the outer periphery of the gathering drum body 201 is provided. The blowing device 100 is located at the axial end of the gathering drum body 201 and includes an air blowing section 120. The air blowing section 120 includes an air blowing port 121a opposite to the axial port of the gathering drum groove 201a. The air blowing port 121a is configured to output a blowing airflow into the gathering drum groove 201a along the axial direction of the gathering drum body 201.

[0055] The cigarette rolling machine provided in this embodiment of the present disclosure has a blowing device 100 disposed at the axial end of the approach drum wheel body 201, and the blowing device 100 includes an air blowing part 120, the air blowing part 120 includes an air blowing port 121a, the air blowing port 121a is configured to output blowing airflow along the axial direction of the approach drum wheel body 201 toward the approach drum wheel groove 201a, which is beneficial to reduce the distance of transporting the filterless cigarette group blown by the blowing airflow to the slitting drum wheel, and is beneficial to reduce the phenomenon of cigarette dropping and jamming, thereby improving the stability of the operation of the cigarette rolling machine.

[0056] like Figure 2 and Figure 3 As shown, in some embodiments, the approach drum 200 further includes a float ring 202. The float ring 202 is located at the axial end of the approach drum body 201 and is coaxially arranged with the approach drum body 201. The float ring 202 includes a float ring hole 202a arranged circumferentially along the float ring 202. The float ring hole 202a is opposite to the axial port of the approach drum groove 201a. The air blowing port 121a of the air blowing section 120 is located on the side of the float ring 202 away from the approach drum body 201, and the radial distance from the center of the air blowing port 121a to the axis of the approach drum body 201 is equal to the radial distance from the center of the corresponding float ring hole 202a to the axis of the approach drum body 201.

[0057] The float ring 202 moves closer to the groove 201a of the approach drum wheel body 201 along the axial direction of the approach drum wheel body 201 to contact the end of the cigarette located in the groove 201a of the approach drum wheel. The float ring hole 202a is opened on the float ring 202 and the air blowing part 120 is fixedly connected to the roller arm 204. This makes it easier for the air blowing port 121a to move closer to the cigarette in the groove 201a of the approach drum wheel body 201 along the axial direction of the approach drum wheel body 201. This helps to reduce the dispersion of the blowing airflow, increase the blowing force of the blowing airflow on the cigarette, and improve the blowing effect.

[0058] like Figure 2 and Figure 3 As shown, in some embodiments, the approach drum 200 further includes a roller assembly. The roller assembly includes a roller 203 and a roller arm 204. The roller 203 is mounted on the roller arm 204 and configured to roll and rub against a corresponding float 202. The air blowing unit 120 is detachably fixedly connected to the roller arm 204. For example, the approach drum 200 may include two floats 202 and two corresponding roller assemblies, the two floats 202 and the two roller assemblies being located axially outside a first end and a second end of the approach drum body 201, respectively. The winding machine includes a drive unit, which is drively connected to the first end of the approach drum body 201. The air blowing unit 120 is detachably fixedly connected to the roller arm 204 located axially outside the second end of the approach drum body 201.

[0059] The air blowing section 120 and the roller arm 204 are connected by a roller device on the adductor drum 200, which provides a mounting position for the air blowing section 120 and helps save structural space. Furthermore, as the adductor drum 201 rotates counterclockwise, the cigarette located below the roller arm 204 moves upward and gradually approaches the roller arm 204. The cigarette at this point is less likely to detach from the adductor drum groove 201a, thus fixing the air blowing section 120 to the roller arm 204. This reduces the impact of the blowing airflow on the cigarette, preventing cigarette scattering and blockages or cigarette spitting, thereby improving production efficiency.

[0060] like Figure 2 and Figure 3 As shown, in some embodiments, the blowing device 100 further includes a mounting portion 110. The mounting portion 110 is detachably connected to the roller arm 204, and the air blowing portion 120 is detachably connected to the mounting portion 110.

[0061] The air blowing unit 120 is detachably connected to the roller arm 204 via the mounting part 110, which facilitates the maintenance and replacement of the air blowing unit 120 at any time.

[0062] like Figure 2 and Figure 3 As shown, in some embodiments, the mounting portion 110 includes a first mounting hole 111a. The air blowing portion 120 includes an air blowing pipe 121, with an air blowing port 121a disposed at one axial end of the air blowing pipe 121. The air blowing pipe 121 is movably engaged with the first mounting hole 111a along the axial direction of the first mounting hole 111a. The blowing device 100 also includes a locking portion. The locking portion is configured to apply a locking force to the air blowing pipe 121 located within the first mounting hole 111a, so that the air blowing portion 120 is detachably connected to the mounting portion 110.

[0063] The air blowing pipe 121 and the first mounting hole 111a have a simple structure, are easy to manufacture, and help reduce costs. The locking part helps to fix the position of the air blowing pipe 121 in the first mounting hole 111a, which helps to stably position the air blowing port 121a in both the radial and axial directions along the approach drum wheel body 201. This helps to align the blowing airflow along the axial direction of the approach drum wheel body 201 with the float hole 202a and the approach drum groove 201a for output, which helps to improve the blowing effect of the blowing device 100.

[0064] like Figure 2 and Figure 3 As shown, in some embodiments, the mounting portion 110 further includes a second mounting hole 111b. The second mounting hole 111b intersects with the first mounting hole 111a. The locking portion includes a locking threaded connector. The locking threaded connector is threaded into the second mounting hole 111b and is configured to apply a locking force to the air blowing pipe 121 by pressing the end face of the locking threaded connector against the side wall of the air blowing pipe 121.

[0065] The locking part includes a locking threaded connector, and the locking threaded connector is threadedly engaged with the second mounting hole 111b to apply a locking force to the air blowing pipe 121. This facilitates locking or loosening the air blowing pipe 121 by turning the locking threaded connector, facilitates quick installation or removal of the air blowing pipe 121, and also simplifies the structural design of the locking part and reduces costs.

[0066] In some embodiments not shown, the air blowing pipe 121 can be threaded into the first mounting hole 111a, and the locking part can include a nut. The air blowing pipe 121 can be fixedly connected to the mounting part 110 by the nut. This arrangement is simple in structure and helps to improve structural stability, thereby facilitating the rapid and stable output of the blowing air from the air blowing port 121a into the adjoining drum groove 201a.

[0067] like Figure 3 and Figure 4 As shown, in some embodiments, the mounting portion 110 includes a first mounting section 111, a second mounting section 112, and at least one threaded connector 113. The first mounting section 111 includes a first mounting hole 111a and a second mounting hole 111b. The second mounting section 112 is connected to the end of the first mounting section 111 and includes at least one third mounting hole 112a. At least one threaded connector 113 is provided corresponding to at least one third mounting hole 112a. The threaded connector 113 passes through the corresponding third mounting hole 112a and is threadedly engaged with the roller arm 204, so that the mounting portion 110 is detachably connected to the roller arm 204 through at least one threaded connector 113.

[0068] The third mounting hole 112a is located on the second mounting section 112, which helps prevent the third mounting hole 112a from interfering with the first mounting hole 111a and the second mounting hole 111b, thereby improving the structural strength of the mounting part 110. In addition, the mounting part 110 can be separated from the roller arm 204 simply by unscrewing the threaded connector 113, greatly simplifying the operation process and facilitating maintenance and replacement.

[0069] like Figure 2 and Figure 4 As shown, in some embodiments, the mounting portion 110 includes a mounting groove 110a. When the mounting portion 110 is connected to the roller arm 204, a portion of the float 202 is located within the mounting groove 110a, so that the mounting groove 110a avoids that portion of the float 202. For example, as... Figure 2 As shown, the rubber connector 2022 of the mounting groove 110a avoids the floating ring 202.

[0070] Setting the mounting groove 110a helps to prevent the float ring 202 from interfering with the mounting part 110 during the rotation of the approach drum wheel body 201, which could lead to wear on the surface of the float ring 202 and the mounting part 110. It could also cause the air nozzle 121a to fail to align with the float ring hole 202a, thus reducing the blowing effect of the blowing device 100. It could even cause the approach drum wheel 200 and the blowing device 100 to malfunction and interrupt production.

[0071] like Figure 2 and Figure 4 As shown, in some embodiments, the mounting portion 110 includes at least one positioning surface. The at least one positioning surface is configured to mate with the outer surface shape of a portion of the roller arm 204.

[0072] Setting a positioning surface helps improve the stability of the connection between the mounting part 110 and the roller arm 204, thereby helping to avoid reducing the flow rate of the airflow entering the approaching drum groove 201a due to the offset of the air outlet 121a.

[0073] In some embodiments, the distance between the air inlet 121a and the float ring 202 along the axial direction of the drum body 201 ranges from 0 to 0.1 mm.

[0074] The close proximity of the air outlet 121a to the float ring 202 helps reduce the distance between the air outlet 121a and the approach drum groove 201a, thereby improving the blowing effect of the blowing airflow. The gap between the air outlet 121a and the float ring 202 helps reduce friction between the float ring 202 and the air blowing section 120, thereby facilitating a stable output of the blowing airflow from the air outlet 121a. In some embodiments, the blowing device 100 further includes a solenoid valve 130. The solenoid valve 130 is configured to control the flow rate of the blowing airflow delivered by the air outlet 121a. The cigarette making machine also includes a converging drum. The converging drum includes a converging drum body. A converging drum groove extending axially along the outer periphery of the converging drum body is provided. The converging drum body and the approach drum body 201 rotate synchronously in opposite directions to simultaneously transport the filter and two cigarette sections corresponding to the filter into the approach drum groove 201a. The cigarette making machine also includes a detection device. The detection device is configured to detect the presence of a filter nozzle within the adjacent drum groove 201a by detecting the presence of a filter nozzle at the confluence drum groove. A solenoid valve 130, coupled to the detection device, is configured to open or close based on the detection result of the detection device.

[0075] By setting up a detection device to detect whether there is a filter at the confluence drum groove or within the converging drum groove 201a, it is possible to quickly and accurately screen out groups of cigarettes without filters, thereby improving the production efficiency of the cigarette making machine.

[0076] In some embodiments, the winding machine may further include a control device configured to control the solenoid valve 130 to open or close based on the detection result of the detection device.

[0077] The control device may be implemented as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described in this disclosure.

[0078] The control device automatically receives signals and controls the solenoid valve 130 to open or close, which helps improve the level of automation. By connecting with the detection device, the control device can quickly respond to the detection results of the detection device, which is beneficial for quickly and accurately controlling the flow of air through the solenoid valve 130 after it is found that there is no filter in the drum groove 201a, thereby ensuring the stability and reliability of production.

[0079] The following combination Figures 2 to 4 The winding and splicing machine according to embodiments of the present disclosure will be described in detail.

[0080] like Figure 2As shown, the winding and joining machine includes a converging drum (not shown), a closing drum 200, a drive unit, a blowing device 100, a solenoid valve 130, a detection device, a control unit, and a slitting drum (not shown). The converging drum includes a converging drum body and multiple converging drum grooves, all of which extend axially along the converging drum body and are spaced apart along the outer periphery of the converging drum body. The closing drum 200 includes a closing drum body 201 and multiple closing drum grooves 201a, all of which extend axially along the closing drum body 201 and are spaced apart along the outer periphery of the closing drum body 201. The axes of the approaching drum body 201 and the converging drum body are arranged parallel to each other, and the driving device is driven and connected to the first end of the approaching drum body 201. It is configured to drive the approaching drum body 201 and the converging drum body to rotate synchronously in opposite directions, so that the converging drum simultaneously transmits the filter tip and / or two tobacco segments located in the same converging drum groove to the same approaching drum groove 201a. The blowing device 100 is located axially outside the second end of the approaching drum body 201 and is configured to output blowing airflow into the approaching drum groove 201a that receives the filter tip and / or two tobacco segments in the converging drum groove. The detection device is configured to detect whether there is a filter tip at the converging drum groove 201a that transmits the filter tip and / or two tobacco segments into the approaching drum groove 201a. The solenoid valve 130 is configured to control the on / off of the blowing airflow of the blowing device 100. The control device, coupled to the solenoid valve 130 and the detection device, is configured to open the solenoid valve 130 when the detection device detects no filter in the converging drum groove, and close the solenoid valve 130 when the detection device detects a filter in the converging drum groove. When the solenoid valve 130 is open, the blowing device outputs a blowing airflow, thereby blowing the two tobacco segments in the converging drum groove 201a together to form a filterless tobacco group. The filterless tobacco group is then passed to the slitting drum and discarded on the slitting drum.

[0081] This cigarette-making machine has a blowing device 100 located at the axial end of the approach drum wheel body 201. The blowing device 100 includes an air blowing section 120, which includes an air blowing port 121a. The air blowing port 121a is configured to output blowing air along the axial direction of the approach drum wheel body 201 toward the approach drum wheel groove 201a. This helps to reduce the distance that the filterless cigarettes blown by the blowing air are transported to the slitting drum wheel, and helps to reduce phenomena such as cigarette dropping and jamming, thereby improving the stability of the cigarette-making machine operation.

[0082] The approach drum 200 also includes two floats 202 and two roller assemblies. The two roller assemblies are arranged one-to-one with the two floats 202. The two floats 202 are located at opposite axial ends of the approach drum body 201 and are coaxially arranged with the approach drum body 201. Each float 202 includes a float pressure plate 2021 and a rubber connector 2022. The float pressure plate 2021, located at the second end of the approach drum body 201, includes a plurality of float holes 202a arranged circumferentially along the float pressure plate 2021. The float holes 202a are opposite to the axial ports of the approach drum grooves 201a. The roller assemblies include rollers 203 and roller arms 204. The rollers 203 are mounted on the roller arms 204, and the axis of the rollers 203 extends vertically. The rollers 203 are configured to roll and rub against the corresponding floats 202 to press the floats 202. The roller arm 204 is located on the radially upward side of the converging drum body 201 and close to the converging drum. After the cigarette is transferred from the converging drum groove to the converging drum groove 201a, it will move upward toward the roller arm 204.

[0083] like Figure 2 As shown, the air-blowing device 100 includes a mounting part 110, an air-blowing part 120, and a locking part. The mounting part 110 is detachably connected to a roller arm 204 located at the second end of the approach drum wheel body 201. The air-blowing part 120 includes an air-blowing pipe 121 and an air-blowing bracket. One end of the air-blowing pipe 121 has an air-blowing port 121a, and the other end is fixedly connected to the air-blowing bracket and communicates with a solenoid valve 130. The solenoid valve 130 controls the on / off of the airflow, and the airflow passes through the air-blowing pipe 121 and finally exits through the air-blowing port 121a to the approach drum wheel groove 201a. The solenoid valve 130 is fixedly connected to the air-blowing bracket. The air-blowing pipe 121 is detachably connected to the mounting part 110. The locking part is configured to apply a locking force to the air blowing pipe 121 so that the air blowing port 121a is positioned at a position where the radial distance from the center to the axis of the approach drum wheel body 201 is equal to the radial distance from the center of the float hole 202a to the axis of the approach drum wheel body 201.

[0084] like Figure 4 As shown, the mounting portion 110 includes a first mounting section 111, a second mounting section 112, and two threaded connectors 113. The first mounting section 111 includes a first mounting hole 111a and a second mounting hole 111b. With the mounting portion 110 connected to the roller arm 204 located at the second end of the adjoining drum wheel body 201, the first mounting hole 111a extends axially along the adjoining drum wheel body 201. The air blow pipe 121 is mounted in the first mounting hole 111a via a locking part, and one end of the air blow pipe 121 with its air outlet 121a protrudes from the first mounting hole 111a to engage with the float ring 202 on the corresponding side. The radial dimension of the air blow pipe 121 is smaller than the radial dimension of the first mounting hole 111a to facilitate quick installation of the air blow pipe 121 into the first mounting hole 111a.

[0085] The second mounting hole 111b intersects the first mounting hole 111a perpendicularly. The locking part includes a locking threaded connector, which is a set screw. The locking threaded connector is threaded into the second mounting hole 111b and is configured to apply a locking force to the air blow pipe 121.

[0086] like Figure 3 and Figure 4 As shown, the second mounting section 112 is connected to the end of the first mounting section 111 and includes two third mounting holes 112a. The third mounting holes 112a extend vertically. Two threaded connectors 113 are provided corresponding to the two third mounting holes 112a. The threaded connectors 113 pass through the corresponding third mounting holes 112a and are threadedly engaged with the bottom of the roller arm 204 located at the second end of the drum wheel body 201, so that the mounting part 110 is detachably connected to the roller arm 204 through the two threaded connectors 113.

[0087] like Figure 2 and Figure 4 As shown, the mounting portion 110 also includes two positioning surfaces, which are respectively disposed on the first mounting section 111 and the second mounting section 112. The end of the roller arm 204 near the axial center of the float ring, away from the roller 203, includes two planes extending axially along the approach drum wheel body 201 at an included angle. The positioning surface located on the first mounting section 111 and the positioning surface located on the second mounting section 112 respectively mate with the two planes of the roller arm 204 at an included angle. These two positioning surfaces facilitate a stable connection between the mounting portion 110 and the roller arm 204, thereby improving the smoothness of the blown airflow output and the accuracy of the output position.

[0088] like Figure 4 As shown, the mounting part 110 includes a mounting groove 110a. When the mounting part 110 is connected to the roller arm 204 located at the second end of the drum wheel body 201, the rubber connector 2022 of the roller arm 204 is located in the mounting groove 110a, which facilitates that the rubber connector 2022 and the mounting part 110 do not interfere with each other during the rotation of the float ring 202.

[0089] The following provides a detailed description of the screening method for unfiltered cigarette packs using a cigarette making machine based on embodiments of the present disclosure.

[0090] Step 1: The detection device checks whether there is a filter nozzle at the groove of the converging drum.

[0091] Step 2: The detection device transmits the detection result to the control device. If the detection result is yes, the control device controls the solenoid valve 130 to close; if the detection result is no, the control device controls the solenoid valve 130 to open, and the blowing air is delivered to the drum groove 201a to blow the two tobacco sticks together and form a filterless tobacco group.

[0092] Step 3: The unfiltered tobacco is fed to the slitting drum, which then removes the unfiltered tobacco.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them; although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this disclosure or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this disclosure.

Claims

1. A cigarette making machine, characterized in that, The application comprises: a gathering drum (200) comprising a gathering drum body (201), an outer periphery of the gathering drum body (201) is provided with a gathering drum groove (201a) extending along an axial direction of the gathering drum body (201); and a blowing device (100) located at an axial end of the gathering drum body (201), comprising a gas blowing part (120), the gas blowing part (120) comprises a gas blowing port (121a) opposite to an axial end of the gathering drum groove (201a), the gas blowing port (121a) is configured to output a blowing gas flow along the axial direction of the gathering drum body (201) towards the gathering drum groove (201a).

2. The cigarette making machine according to claim 1, wherein the gathering drum (200) further comprises a float ring (202) located at an axial end of the gathering drum body (201) and coaxially arranged with the gathering drum body (201), the float ring (202) comprises a float ring hole (202a) arranged along a circumferential direction of the float ring (202), the float ring hole (202a) is opposite to the axial end of the gathering drum groove (201a); the gas blowing port (121a) of the gas blowing part (120) is located at a side of the float ring (202) away from the gathering drum body (201), and a radial distance from a center of the gas blowing port (121a) to an axis of the gathering drum body (201) is equal to a radial distance from a center of the float ring hole (202a) to the axis of the gathering drum body (201).

3. The cigarette making machine according to claim 2, wherein the gathering drum (200) further comprises a roller device, the roller device comprises a roller (203) and a roller arm (204), the roller (203) is mounted on the roller arm (204) and is configured to roll and rub against the float ring (202); the gas blowing part (120) is detachably fixedly connected to the roller arm (204).

4. The roll wrapping machine of claim 3, wherein, the blowing device (100) further comprises a mounting part (110), the mounting part (110) is detachably connected to the roller arm (204), and the gas blowing part (120) is detachably connected to the mounting part (110).

5. The cigarette making machine according to claim 4, wherein the mounting part (110) comprises a first mounting hole (111a), the gas blowing part (120) comprises a gas blowing pipe (121), the gas blowing port (121a) is arranged at an axial end of the gas blowing pipe (121), and the gas blowing pipe (121) is movably matched with the first mounting hole (111a) along an axial direction of the first mounting hole (111a); the blowing device (100) further comprises a locking part configured to apply a locking force to the gas blowing pipe (121) located in the first mounting hole (111a) so that the gas blowing part (120) is detachably connected to the mounting part (110).

6. The cigarette making machine according to claim 5, wherein The mounting portion (110) further comprises a second mounting hole (111b) which is penetrated by the first mounting hole (111a); The locking portion comprises a locking threaded connector which is threadedly matched with the second mounting hole (111b) and is configured to apply the locking force to the air blowing pipe (121) by abutting the end face of the locking threaded connector against the side wall of the air blowing pipe (121).

7. The roll wrapping machine of claim 6, wherein, The mounting portion (110) comprises: a first mounting section (111) comprising the first mounting hole (111a) and the second mounting hole (111b); a second mounting section (112) connected to the end of the first mounting section (111) and comprising at least one third mounting hole (112a); and at least one threaded connector (113) provided in one-to-one correspondence with the at least one third mounting hole (112a), the threaded connector (113) being threadedly matched with the roller arm (204) through the corresponding third mounting hole (112a) to detachably connect the mounting portion (110) with the roller arm (204) through the at least one threaded connector (113).

8. The cigarette making machine according to claim 4, wherein the mounting portion (110) comprises a mounting groove (110a) in which part of the float ring (202) is located when the mounting portion (110) is connected with the roller arm (204); and / or the mounting portion (110) comprises at least one positioning face which is configured to be matched with the shape of the outer surface of part of the roller arm (204).

9. The roll wrapping machine of claim 2, wherein, The distance between the air blowing port (121a) and the float ring (202) along the axial direction of the converging drum (201) is in the range of 0-0.1 mm.

10. The cigarette making machine according to any one of claims 1 to 9, wherein the converging device (100) further comprises a solenoid valve (130) which is configured to control the flow rate of the converging air flow delivered by the air blowing port (121a); the cigarette making machine further comprises a merging drum comprising a merging drum body, the outer periphery of the merging drum body is provided with a merging drum groove extending along the axial direction of the merging drum body, the merging drum body is synchronously and reversely rotated with the converging drum body (201) to synchronously transport a filter and two cigarette sections correspondingly arranged with the filter into the converging drum groove (201a); the cigarette making machine further comprises a detection device which is configured to detect whether there is a filter in the converging drum groove (201a) by detecting whether there is a filter at the merging drum groove, the solenoid valve (130) is coupled with the detection device and is configured to be opened or closed according to the detection result of the detection device.

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