A cigarette pick-up device, a packaging machine and a cigarette pick-up method

Abstract

This invention discloses a cigarette receiving device, comprising: a flexible belt; a traction mechanism for pulling the flexible belt through a conveying channel, the traction mechanism comprising: a first adsorption block, a second adsorption block, and a negative pressure device; one end of the flexible belt can be adsorbed onto the first adsorption block or the second adsorption block to move with the adsorbed adsorption block; wherein, the first adsorption block can pull one end of the flexible belt from a first position to a second position, and the second adsorption block can pull one end of the flexible belt from the second position to a third position; a paper rolling roller, disposed outside the conveying channel, the other end of the flexible belt being connected to the paper rolling roller, the flexible belt being able to wind around the paper rolling roller or unwind when the paper rolling roller rotates; and a clamping device, disposed at the third position, for clamping the one end of the flexible belt. This invention can achieve high-level cigarette receiving without affecting the conveying of items within the conveying channel. This invention also provides a packaging machine and a cigarette receiving method.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing, and particularly to a cigarette feeding device, a packaging machine, and a cigarette feeding method. Background Technology

[0002] Current cigarette production equipment mainly consists of three parts: cigarette rolling machines, cigarette buffer conveying devices, and packaging machines. The cigarette rolling machine is responsible for producing cigarettes, the cigarette buffer conveying device is responsible for buffering and conveying the cigarettes, and the packaging machine is responsible for packaging individual packs and cartons of cigarettes. Cigarette production is discontinuous, with shutdowns on weekends and holidays, and most cigarette factories now operate on a two-shift system, from 8:00 AM to 12:00 AM, resulting in approximately 8 hours of downtime daily. Before shutdown, production personnel will empty the cigarettes and semi-finished products from the equipment to prevent prolonged exposure to air from affecting the cigarettes' processing parameters. Upon restarting, when the cigarettes produced by the cigarette rolling machine reach the connection point between the cigarette buffer conveying device and the packaging machine, since there are no cigarettes in the packaging machine's cigarette compartment, the cigarettes need to be manually guided to the bottom of the compartment. The typical method involves the operator using a ladder to reach the top of the compartment and then using their hands or a piece of cardboard to guide the cigarettes to the bottom. However, due to the large height difference in the tobacco storage area, there are certain risks to the safety of the operators. In addition, the winding and irregular shape inside the tobacco storage area makes it easy for manual handling to cause defects such as wrinkles and breaks in the cigarettes, which in turn affects the quality of the final product. Summary of the Invention

[0003] To address the safety risks associated with manual cigarette handling and the quality issues of cigarettes easily wrinkling or breaking during the handling process, this invention provides a cigarette handling device. This device uses a traction mechanism to pull a flexible belt through the conveying channel, enabling high-level cigarette handling without affecting the transport of other items in the conveying channel.

[0004] To address the aforementioned technical problems, this application discloses a cigarette holder, comprising:

[0005] Flexible strip;

[0006] A traction mechanism is used to pull a flexible belt through a conveyor channel. The traction mechanism includes: a first adsorption block that can move along a first direction between a first position and a second position; a second adsorption block that can move along the first direction between a second position and a third position; and a negative pressure device connected to the first and second adsorption blocks respectively, so that the first and second adsorption blocks can generate negative pressure to adsorb one end of the flexible belt. The first position is located above the conveyor channel, the second position is located inside the conveyor channel, and the third position is located below the conveyor channel.

[0007] One end of the flexible strip can be adsorbed onto a first adsorption block or a second adsorption block to move with the adsorption block it is adsorbed onto; wherein, the first adsorption block can pull one end of the flexible strip from a first position to a second position, and the second adsorption block can pull one end of the flexible strip from a second position to a third position;

[0008] The paper roll is located outside the conveyor channel. The other end of the flexible belt is connected to the paper roll. When the paper roll rotates, the flexible belt can be wound around the paper roll or unwound.

[0009] A clamping device, located in the third position, is used to clamp one end of the flexible strip.

[0010] Using the above technical solution, the traction mechanism employs negative pressure adsorption to attach the flexible belt to the adsorption block, allowing it to move with the adsorption block. This simple adsorption structure reduces the space occupied by the traction mechanism within the channel. Simultaneously, a first and second adsorption block alternate traction. After the first and second adsorption blocks complete their traction actions, they can move back to their initial positions, avoiding any impact on the transport of items within the conveying channel. When cigarettes are transported through the conveying channel, they are blocked by the flexible belt, which is pulled through the channel by the traction mechanism, and then supported by the flexible belt to move to a set position. One end of the flexible belt carried by the traction mechanism passes through the conveying channel and is fixed by a clamping device. The other end of the flexible belt is connected to the paper roll roller and wound around it, causing the paper strip to block the conveying path of the channel. When a cigarette is input through the conveying channel, it is blocked by the flexible belt. As the pressure of the cigarette increases, the flexible belt gradually loosens to support the cigarette to a lower, set position, thus achieving high-level cigarette reception.

[0011] As one specific implementation method, it also includes:

[0012] The pressure roller is used to support the flexible belt, and one end of the flexible belt is connected to the traction mechanism via the pressure roller;

[0013] Pressure roller support, the pressure roller is elastically connected to the pressure roller support.

[0014] As one specific implementation method, it also includes:

[0015] A paper roll drive unit, connected to the paper roll, is used to drive the paper roll to rotate;

[0016] The distance sensor is used to detect changes in the position of the pressure roller and is electrically connected to the paper roll drive.

[0017] As one specific implementation, the traction mechanism also includes:

[0018] A first driving device is connected to a first adsorption block and is used to drive the first adsorption block to move between a first position and a second position.

[0019] The second driving device is connected to the second adsorption block and is used to drive the second adsorption block to move between the second position and the third position.

[0020] As one specific implementation, the traction mechanism also includes:

[0021] The first pressure detector is used to detect the gas pressure value of the first adsorption block;

[0022] The second pressure detector is used to detect the gas pressure value of the second adsorption block;

[0023] The first pressure detector is communicatively connected to the second drive device, and the second pressure detector is communicatively connected to both the first and second drive devices.

[0024] A packaging machine, comprising:

[0025] The aforementioned cigarette receiving device;

[0026] The tobacco storage area includes a conveying channel, with a tobacco stick receiving device located at the input section of the conveying channel.

[0027] A cigarette-feeding method, based on the above-mentioned cigarette-feeding device, includes the following steps:

[0028] Connect the first adsorption block to the negative pressure device so that the first adsorption block generates negative pressure to adsorb one end of the flexible strip.

[0029] The first adsorption block drives the flexible belt to move from the first position to the second position;

[0030] Move the second adsorption block to the second position;

[0031] Stop providing negative pressure to the first adsorption block, connect the second adsorption block to the negative pressure device, so that the flexible belt can be adsorbed onto the second adsorption block;

[0032] The second adsorption block causes the flexible belt to move from the second position to the third position;

[0033] Activate the clamping device to clamp one end of the flexible strip, fixing one end of the flexible strip in the third position;

[0034] The cigarettes fed into the conveyor channel are squeezed onto a flexible belt, which is then unwound by the paper roll rollers, moving the cigarettes to a set position.

[0035] As one specific embodiment, the cigarette holder also includes:

[0036] A first driving device is used to drive the first adsorption block;

[0037] The second driving device is used to drive the second adsorption block;

[0038] The first pressure detector is used to detect the gas pressure value of the first adsorption block;

[0039] The second pressure detector is used to detect the gas pressure value of the second adsorption block;

[0040] The cigarette-lighting method also includes the following steps:

[0041] After connecting the first adsorption block to the negative pressure device, before the first adsorption block moves the flexible belt from the first position to the second position, the method further includes: using a first pressure detector to detect the air pressure value of the first adsorption block to determine whether the flexible belt is adsorbed on the first adsorption block; if so, sending a signal to the first driving device to drive the first adsorption block to move to the second position.

[0042] After connecting the second adsorption block to the negative pressure device, and before moving the flexible belt from the second position to the third position, the process further includes: using a second pressure detector to detect the air pressure value of the second adsorption block to determine whether the flexible belt is adsorbed onto the second adsorption block; if so, sending a signal to the second driving device to move the first adsorption block from the second position to the third position; and simultaneously sending a signal to the first driving device to move the first adsorption block from the second position to the first position.

[0043] As one specific embodiment, the cigarette holder also includes:

[0044] Pressure rollers are used to support flexible belts;

[0045] Pressure roller support, with the pressure roller and pressure roller support being elastically connected;

[0046] Distance sensor is used to detect changes in the position of the pressure roller;

[0047] The cigarette receiving method also includes the following steps: when the distance sensor detects that the pressure roller moves downward relative to the pressure roller support, the distance sensor sends a signal to control the paper roll to rotate faster, so that the flexible belt can unwind faster; when the distance sensor detects that the pressure roller moves upward relative to the pressure roller support, the distance sensor sends a signal to control the paper roll to decelerate or stop rotating; during the movement of the cigarette, the above steps are repeated until the cigarette moves to the set position.

[0048] As one specific implementation, the flexible belt is provided with a first mark and a second mark, and the cigarette holder also includes a photoelectric sensor, which is used to detect the first mark and the second mark.

[0049] Cigarette receiving methods also include:

[0050] When the cigarette moves to the set position, the photoelectric sensor can detect the first mark. The photoelectric sensor sends a signal to control the paper roll to stop rotating and controls the clamping device to release the flexible strip. Then, it controls the paper roll to reverse and wind the flexible strip onto the paper roll. When the photoelectric sensor detects the second mark, the photoelectric sensor sends a signal to control the paper roll to stop rotating. Attached Figure Description

[0051] Figure 1 A schematic diagram of the traction mechanism according to an embodiment of the present invention is shown;

[0052] Figure 2 A schematic diagram of a cigarette holder is shown. Figure 1 ;

[0053] Figure 3 A schematic diagram of a cigarette holder is shown. Figure 2 ;

[0054] Figure 4 A schematic diagram of a flexible strip according to an embodiment of the present invention is shown;

[0055] Figure 5 This diagram shows the structural schematic of the cigarette storage section of the packaging machine;

[0056] In the diagram: 100-Cigarette receiving device, 110-Paper roll drive device, 120-Flexible belt support mechanism, 121-Paper roll, 122-Pressure roll, 1221-Connecting end, 123-Paper roll support, 124-Pressure roll support, 125-Elastic element, 130-Flexible belt, 131-Fixed end, 132-Moving end, 133-First marker, 134-Second marker, 140-Traction mechanism, 141-First adsorption block, 142-Second adsorption block, 143-First drive device. 144-Second driving device, 145-Pneumatic clamping device, 146-First mounting plate, 147-Second mounting plate, 151-Distance sensor, 152-Photoelectric sensor, 153-First pressure detector, 154-Second pressure detector, 200-Smoke chamber, 210-Input section, 211-Upper wall, 212-Lower wall, 213-First notch, 214-Second notch, 220-Vertical section, 230-Transition cavity, 240-Horizontal section, 250-Bottom of smoke chamber, 260-Conveyor belt. Detailed Implementation

[0057] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0058] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0059] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0060] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0061] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0062] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0063] like Figure 1As shown in the figure, an embodiment of the present invention discloses a traction mechanism 140 for traction of a flexible belt through a conveyor channel. The traction mechanism 140 includes a first adsorption block 141, a second adsorption block 142, and a negative pressure device (not shown in the figure). The negative pressure device is connected to the first adsorption block 141 and the second adsorption block 142 respectively, so that the first adsorption block 141 or the second adsorption block 142 can generate negative pressure to adsorb one end of the flexible belt 130, so that one end of the flexible belt 130 can move with the first adsorption block 141 or the second adsorption block 142 it is adsorbed on.

[0064] Further, the first adsorption block 141 is connected to a first driving device 143, which drives the first adsorption block 141 to move between a first position and a second position. The second adsorption block 142 is connected to a second driving device 144, which drives the second adsorption block 142 to move between a second position and a third position. The first position is located above the conveying channel, the second position is located inside the conveying channel, and the third position is located below the conveying channel. That is, the first adsorption block 141 uses negative pressure to adsorb one end of the flexible belt, guiding it from outside the conveying channel into the conveying channel. At the second position inside the conveying channel, the first adsorption block 141 and the second adsorption block 142 at least partially overlap, causing the flexible belt to separate from the first adsorption block 141. The second adsorption block 142 then uses negative pressure to adsorb the flexible belt, taking over from the first adsorption block 141 in guiding the flexible belt from inside the conveying channel to outside, thereby allowing the flexible belt to pass through from above to below the conveying channel. Exemplarily, the first driving device 143 and the second driving device 144 are cylinders.

[0065] Continue to refer to Figure 1 Specifically, the conveying channel includes an upper wall 211 and a lower wall 212. The upper wall 211 has a through-hole 213, and the lower wall 212 has a through-hole 214. A first driving device 143 is disposed above the upper wall 211, and a first adsorption block 141 moves through the first notch 213 into the conveying channel (i.e., moves between a first position and a second position). A second driving device 144 is disposed below the lower wall 212, and a second adsorption block 142 moves through the second notch 214 into the conveying channel (i.e., moves between a third position and a second position). For example, the first driving device 143 is mounted above the conveying channel via a first mounting plate 146, and the second driving device 144 is mounted below the conveying channel via a second mounting plate 147.

[0066] Specifically, the flexible belt extends through the conveyor channel in a direction perpendicular to or at an angle to the axis of the conveyor channel (i.e., the direction in which the items flow), so that the flexible belt can receive the items input by the conveyor channel. For example, the flexible belt extends along a first direction (as shown in the attached diagram). Figure 1 (As shown in the X direction) runs through the conveyor channel, and the item travels along the second direction (such as...) Figure 1 (As shown in the Y direction) Inflow.

[0067] Furthermore, the identification and detection mechanism also includes a first pressure detector 153 and a second pressure detector 154. The first pressure detector 153 is used to detect whether the flexible belt is adsorbed by the first adsorption block 141. The second pressure detector 154 is used to detect whether the flexible belt is adsorbed by the second adsorption block 142. This configuration ensures that the flexible belt moves only after being adsorbed by the first adsorption block 141 or the second adsorption block 142, thus guaranteeing the traction effect. Specifically, when the flexible belt is adsorbed by the first adsorption block 141 or the second adsorption block 142, the negative pressure is high; conversely, due to air leakage, the negative pressure is low. Therefore, the pressure detectors can be used to detect the air pressure of the first adsorption block 141 or the second adsorption block 142 to determine whether the flexible belt is adsorbed.

[0068] In the above technical solution, the traction mechanism 140 uses negative pressure adsorption to adsorb the flexible belt 130 onto the first adsorption block 141 or the second adsorption block 142, and can move with the adsorption block. The adsorption structure is simple, and the traction mechanism 140 occupies little space in the conveying channel. At the same time, the traction is carried out by taking turns with the first adsorption block 141 and the second adsorption block 142. After the traction action of the first adsorption block 141 and the second adsorption block 142 is completed, they can move back to the initial position to avoid affecting the conveying of items in the conveying channel.

[0069] This application also discloses a cigarette receiving device 100, installed in the cigarette storage 200 of a packaging machine, for receiving cigarettes in the cigarette storage 200 when the machine is started. The cigarette storage 200 includes a cigarette conveying channel through which cigarettes are input into the cigarette storage 200. (See also...) Figure 2 and Figure 3 The cigarette holder 100 includes the aforementioned traction mechanism 140, flexible belt 130, flexible belt support mechanism 120, traction mechanism 140, and identification and detection mechanism.

[0070] Reference Figure 4 As shown, one end of the flexible strip 130 is a movable end 132, and the other end is a fixed end 131. For example, the flexible strip 130 is a 0.2mm thick BOPP transparent paper strip. This configuration allows leftover transparent paper to be used as the flexible strip 130, saving costs.

[0071] Continue to refer to Figure 2The flexible belt support mechanism 120 includes a paper roll 121. One end of the paper roll 121 is connected to a paper roll drive device 110, and the other end of the paper roll 121 is rotatably connected to a paper roll 121 support. The paper roll 121 support provides support for the paper roll 121, and the paper roll drive device 110 can drive the paper roll 121 to rotate. The fixed end 131 of the flexible belt 130 is connected to the paper roll 121, and the flexible belt 130 is wound around the paper roll 121. The paper roll drive device 110 is used to drive the paper roll 121 to rotate so that the flexible belt 130 is unwound or wound around the paper roll 121. The movable end 132 of the flexible belt 130 can be adsorbed onto a first adsorption block 141 or a second adsorption block 142 to move with the adsorbed adsorption block. The first adsorption block 141 can pull the flexible belt 130 from a first position to a second position, and the second adsorption block 142 can pull one end of the flexible belt 130 from the second position to a third position, i.e., along... Figure 1 and Figure 2 In the direction shown in the middle E direction, the movable end 132 of the flexible belt 130 is pulled by the traction mechanism 140 and passes through the cigarette conveying channel.

[0072] Reference Figure 3 A clamping device is also provided at the third position. When the second adsorption block 142 pulls the movable end 132 of the flexible belt 130 to the third position, the clamping device is used to fix the movable end 132 of the flexible belt 130, so that the movable end 132 of the flexible belt 130 is fixed to the fixed end 131. The part of the flexible belt 130 located between the two ends and wound on the paper roll 121 can be unwound, so that the part of the flexible belt 130 located in the conveying channel can be extended. That is to say, the flexible belt 130 blocks the path of the cigarette inflow, and one end of the flexible belt 130 is fixed. Therefore, when the cigarette is input and squeezes the flexible belt 130, the end of the flexible belt 130 wound on the paper roll 121 is unwound and extended to support the cigarette squeezed by the flexible belt 130 and enter the cigarette storage 200 together. The flexible belt 130 can adapt to the internal structure of the cigarette storage 200 and support the cigarette to move to the set position of the cigarette storage 200.

[0073] For example, the clamping device is located below the outside of the cigarette conveying channel. The structure of the clamp can be two opposing cylinders. After the two cylinders are ventilated, the moving end extends to clamp the flexible belt 130.

[0074] Reference Figure 2 and Figure 3A pressure roller 122 is installed above the tobacco storage 200, downstream of the paper roll 121, to support the flexible belt 130. The movable end 132 of the flexible belt 130 extends through the pressure roller 122 to the traction mechanism 140, allowing it to be adsorbed by at least the first adsorption block 141. The pressure roller 122 is supported by a pressure roller 122 support, and the pressure roller 122 is elastically connected to the pressure roller 122 support, so that the pressure roller 122 can move up and down relative to the pressure roller 122 support as the pressure on the flexible belt 130 changes. Specifically, both ends of the pressure roller 122 support are provided with grooves extending in a first direction, and elastic members 125 extending in the first direction are disposed in the grooves. One end of the elastic member 125 is connected to the pressure roller 122 support, and the other end is connected to the connecting end 1221 of the pressure roller 122. The elastic members 125 at both ends provide elastic support to the pressure roller 122 through the connecting ends 1221 at both ends of the pressure roller 122. For example, the elastic element 125 is a spring.

[0075] Furthermore, the identification and detection mechanism includes a distance sensor 151, which is located near the pressure roller 122 to detect changes in the position of the pressure roller 122. The distance sensor 151 is electrically connected to the paper roll drive device 110 to provide timely feedback when the pressure roller 122 moves downward under pressure or moves upward after the pressure is reduced, thereby adjusting the rotation speed of the paper roll drive device 110 and adjusting the unwinding speed of the flexible belt 130 to match the speed of cigarette input.

[0076] Specifically, when the cigarette reaches the cigarette storage 200 of the packaging machine from the upstream equipment and is input into the cigarette storage 200 through the cigarette conveying channel, the cigarette will be blocked by the flexible belt 130. The forward thrust of the cigarette and the weight of the cigarette will exert a downward force on the flexible belt 130 (e.g., Figure 2 The pressure (as shown in the middle E direction) exerts downward pressure on the pressure roller, causing the pressure roller 122 to compress the elastic element 125 downward (as shown in the middle E direction). Figure 2 (As shown in the middle E direction). After the distance sensor 151 detects the downward movement of the pressure roller, it sends an acceleration signal to the paper roll drive device 110, causing it to accelerate its operation. This, in turn, causes the flexible strip 130 wound on the paper roll to unwind more quickly. The portion of the flexible strip 130 located inside the cigarette storage 200 extends to meet the storage capacity of the cigarettes.

[0077] After the paper roll drive device 110 accelerates for a certain period of time, when the length of the flexible belt 130 in the cigarette storage 200 increases beyond a certain value, the pressure of the cigarette on the flexible belt 130 decreases, and consequently the pressure of the flexible belt 130 on the pressure roller 122 decreases. The pressure roller is then pushed upward by the elastic element 125 (i.e., along the...). Figure 2(Moving in the direction shown by D). After the distance sensor 151 detects the upward movement of the pressure roller, it sends a signal to the paper roll drive device 110 to slow down or stop operation. The paper roll drive device 110 then slows down or stops, and the flexible belt 130 stops unwinding or slows down its unwinding speed. This achieves positive feedback to match the cigarette flow rate with the unwinding speed of the paper roll drive device 110, preventing the flexible belt 130 from unwinding too quickly, resulting in messy cigarettes, or unwinding too slowly, causing cigarette deformation, thus ensuring the quality of the product during the traction process.

[0078] Furthermore, referring to Figure 4 The flexible belt 130 is provided with a first mark 133 indicating that it has been engaged in place, i.e., an engagement position mark, which is located near the fixed end 131. The flexible belt 130 is also provided with a second mark 134 indicating that the flexible belt 130 has been retracted in place, i.e., a retraction limit mark, which is located near the movable end 132.

[0079] The identification and detection mechanism also includes a photoelectric sensor 152 for detecting the first identifier 133 and the second identifier 134, and the photoelectric sensor 152 is communicatively connected to the paper roll drive device 110. This configuration allows for automatic control of the traction process of the flexible belt 130. Specifically, as the flexible belt 130 supports the cigarette and gradually approaches the bottom of the cigarette storage 200 (i.e., the set position), when the photoelectric sensor 152 detects the first identifier 133, it indicates that the cigarette has been guided to the bottom of the cigarette storage 200. The photoelectric sensor 152 then sends a signal to control the paper roll drive device 110 to stop unwinding, and simultaneously controls the grippers to release the movable end 132 of the flexible belt 130. Then, the paper roll drive device 110 is rotated in the opposite direction, causing the paper roll 121 to rotate in the opposite direction, thus pulling the flexible belt 130 out of the cigarette storage 200 and winding it onto the paper roll. When the photoelectric sensor 152 detects the second identifier 134, it indicates that the movable end 132 of the flexible belt 130 is in the initial traction position. The photoelectric sensor 152 sends a signal to stop the paper roll drive device 110 and the cigarette receiving device 100 completes one motion cycle.

[0080] In this embodiment, the cigarette device uses a flexible belt 130 that runs through the cigarette conveying channel of the cigarette storage 200. The cigarettes being conveyed to the cigarette storage 200 are blocked by the flexible belt 130 and gradually carried to the bottom of the cigarette storage 200 by the belt. During this movement, a distance sensor 151 detects the movement of the elastically set pressure roller 122. Based on the movement of the pressure roller 122, the relationship between the cigarette capacity and the length of the flexible belt 130 is determined. The rotation of the paper roll drive device 110 is then controlled to control the unwinding speed of the flexible belt 130. This allows the flexible belt 130 to unwind according to the number of cigarettes falling, preventing cigarettes from becoming disordered or deformed, thus ensuring cigarette quality. A photoelectric sensor 152 automatically determines whether the receiving position (bottom of the cigarette storage 200) has been reached and controls the retraction of the flexible belt 130, achieving automatic control of cigarette receiving. By implementing this technical solution, the safety risks of operators working at heights and the quality risks of cigarettes being wrinkled due to human compression are effectively reduced, the speed of cigarette ignition is improved, and the effect of completing cigarette ignition efficiently, with high quality and safety is achieved.

[0081] Another embodiment of this application also discloses a packaging machine, such as Figure 5 As shown, the device includes a cigarette storage 200 and the aforementioned cigarette receiving device 100. The cigarette conveying channel includes an input section 210, a vertical section 220, and a horizontal section 240 that are sequentially connected to each other. The horizontal section 240 connects to the bottom of the cigarette storage 200. A transition cavity 230 is provided at the connection between the input section 210 and the vertical section 220. The cigarette receiving device 100 is located in the input section 210 of the cigarette conveying channel. After the cigarette is input, it is supported by a flexible belt 130 and passes through the input section 210, the transition cavity 230, the vertical section 220, and the horizontal section 240 until it reaches the bottom of the cigarette storage 200, thus receiving the cigarette. Specifically, when the cigarette reaches the horizontal section 240 of the cigarette storage 200 from the vertical section 220, a conveyor belt 260 (e.g., ...) is provided inside the horizontal section 240 of the cigarette storage 200. Figure 5 As shown, the cigarettes will be conveyed by the conveyor belt 260 without any blockage in the horizontal section 240, until they are conveyed to the bottom of the cigarette storage 200.

[0082] This application also discloses a cigarette receiving method, based on the above-mentioned cigarette device, specifically including the following steps:

[0083] Step S1: Connect the first adsorption block 141 to the negative pressure device so that the first adsorption block 141 generates negative pressure to adsorb one end of the flexible strip 130.

[0084] Step S2: The first adsorption block 141 drives the flexible belt 130 to move from the first position to the second position.

[0085] Step S3: Move the second adsorption block 142 to the second position.

[0086] Step S4: Stop providing negative pressure to the first adsorption block 141, so that the movable end 132 of the flexible belt 130 is detached from the first adsorption block 141; connect the second adsorption block 142 to the negative pressure device so that the movable end 132 of the flexible belt 130 is adsorbed onto the second adsorption block 142.

[0087] Step S5: Move the second adsorption block 142 and the flexible belt 130 from the second position to the third position.

[0088] Step S6: Activate the clamping device to clamp one end of the flexible strip 130, so that one end of the flexible strip 130 is fixed in the third position.

[0089] Step S7: The cigarettes input through the conveyor channel are squeezed by the flexible belt 130. The flexible belt 130 is unwound by the paper roll roller 121, which moves the cigarettes to the set position.

[0090] Furthermore, after connecting the first adsorption block 141 to the negative pressure device, before the first adsorption block 141 moves the flexible belt 130 from the first position to the second position, the method further includes: using a first pressure detector 153 to detect the air pressure value of the first adsorption block 141 to determine whether the flexible belt 130 is adsorbed onto the first adsorption block 141. If so, a signal is sent to the first driving device 143 to drive the first adsorption block 141 to move to the second position.

[0091] After connecting the second adsorption block 142 to the negative pressure device, and before moving the flexible belt 130 from the second position to the third position using the second adsorption block 142, the process further includes: using a second pressure detector 154 to detect the air pressure value of the second adsorption block 142 to determine whether the flexible belt 130 is adsorbed onto the second adsorption block 142. If so, a signal is sent to the second driving device 144 to move the first adsorption block 141 from the second position to the third position. Simultaneously, a signal is sent to the first driving device 143 to move the first adsorption block 141 from the second position to the first position, that is, the first adsorption block 141 is reset to avoid affecting the delivery of the cigarette.

[0092] Furthermore, the cigarette receiving method also includes the following steps: when the distance sensor 151 detects that the pressure roller 122 has moved downward relative to the pressure roller 122 support, the distance sensor 151 sends a signal to control the paper winding roller 121 to accelerate its rotation, causing the flexible belt 130 to unwind more quickly. When the distance sensor 151 detects that the pressure roller 122 has moved upward relative to the pressure roller 122 support, the distance sensor 151 sends a signal to control the paper winding roller 121 to decelerate or stop its rotation; during the movement of the cigarette, the above steps are repeated until the cigarette moves to the set position.

[0093] Furthermore, when the cigarette moves to the set position (i.e., the bottom of the cigarette storage 200), the photoelectric sensor 152 can detect the first mark 133. The photoelectric sensor 152 sends a signal to control the paper roll 121 to stop rotating and controls the clamping device to release the flexible strip 130. Then, it controls the paper roll 121 to reverse and wind the flexible strip 130 onto the paper roll 121. When the photoelectric sensor 152 detects the second mark 134, the photoelectric sensor 152 detects and sends a signal to control the paper roll 121 to stop rotating.

[0094] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A cigarette holder, characterized in that, include: Flexible strip; A traction mechanism for pulling a flexible belt through a conveying channel, the traction mechanism comprising: a first adsorption block movable between a first position and a second position along a first direction; a second adsorption block movable between the second position and a third position along the first direction; and a negative pressure device connected to the first and second adsorption blocks respectively, so that the first and second adsorption blocks can generate negative pressure to adsorb one end of the flexible belt; wherein the first position is located above the conveying channel, the second position is located inside the conveying channel, and the third position is located below the conveying channel; One end of the flexible strip can be adsorbed onto the first adsorption block or the second adsorption block to move with the adsorption block it is adsorbed onto; wherein, the first adsorption block can pull one end of the flexible strip from the first position to the second position, and the second adsorption block can pull one end of the flexible strip from the second position to the third position; A paper roll is disposed outside the conveying channel. The other end of the flexible belt is connected to the paper roll. When the paper roll rotates, the flexible belt can be wound around the paper roll or unwound. A clamping device, disposed at the third position, is used to clamp one end of the flexible strip; A pressure roller is used to support the flexible belt, and one end of the flexible belt is connected to the traction mechanism via the pressure roller; A pressure roller support, wherein the pressure roller is elastically connected to the pressure roller support; A paper roll drive device is connected to the paper roll and is used to drive the paper roll to rotate; A distance sensor is provided to detect changes in the position of the pressure roller, and the distance sensor is electrically connected to the paper roll drive device.

2. The cigarette holder as described in claim 1, characterized in that, The traction mechanism also includes: A first driving device is connected to the first adsorption block and is used to drive the first adsorption block to move between the first position and the second position. The second driving device is connected to the second adsorption block and is used to drive the second adsorption block to move between the second position and the third position.

3. The cigarette holder as described in claim 2, characterized in that, The traction mechanism also includes: A first pressure detector is used to detect the air pressure value of the first adsorption block; The second pressure detector is used to detect the gas pressure value of the second adsorption block; The first pressure detector is communicatively connected to the second drive device, and the second pressure detector is communicatively connected to both the first drive device and the second drive device.

4. A packaging machine, characterized in that, include: The cigarette receiving device as described in any one of claims 1-3; The tobacco storage includes the conveying channel, and the tobacco stick receiving device is located at the input section of the conveying channel.

5. A method for receiving a cigarette, characterized in that, Based on the cigarette holder as described in claim 1, the following steps are included: Connect the first adsorption block to the negative pressure device so that the first adsorption block generates negative pressure to adsorb one end of the flexible strip; The first adsorption block drives the flexible belt to move from the first position to the second position; Move the second adsorption block to the second position; Stop providing negative pressure to the first adsorption block, and connect the second adsorption block to the negative pressure device so that the flexible strip is adsorbed onto the second adsorption block; The second adsorption block causes the flexible belt to move from the second position to the third position; The clamping device is activated to clamp one end of the flexible strip, fixing one end of the flexible strip in the third position; The cigarettes fed into the conveying channel squeeze the flexible belt, which is then unwound by the paper roll roller, moving the cigarettes to a set position.

6. The cigarette receiving method as described in claim 5, characterized in that, The cigarette receiving device also includes: A first driving device is used to drive the first adsorption block; A second driving device is used to drive the second adsorption block; A first pressure detector is used to detect the air pressure value of the first adsorption block; The second pressure detector is used to detect the gas pressure value of the second adsorption block; The cigarette receiving method further includes the following steps: After connecting the first adsorption block to the negative pressure device, before the first adsorption block moves the flexible belt from the first position to the second position, the method further includes: using the first pressure detector to detect the air pressure value of the first adsorption block to determine whether the flexible belt is adsorbed on the first adsorption block; if so, sending a signal to the first driving device to drive the first adsorption block to move to the second position. After connecting the second adsorption block to the negative pressure device, and before moving the flexible belt from the second position to the third position, the method further includes: using the second pressure detector to detect the air pressure value of the second adsorption block to determine whether the flexible belt is adsorbed onto the second adsorption block; if so, sending a signal to the second driving device to move the first adsorption block from the second position to the third position; simultaneously, sending a signal to the first driving device to move the first adsorption block from the second position to the first position.

7. The cigarette insertion method as described in claim 5, characterized in that, The cigarette receiving device also includes: Pressure rollers are used to support the flexible belt; A pressure roller support, wherein the pressure roller is elastically connected to the pressure roller support; A distance sensor is used to detect changes in the position of the pressure roller; The cigarette receiving method further includes the following steps: when the distance sensor detects that the pressure roller moves downward relative to the pressure roller support, the distance sensor sends a signal to control the paper roll to accelerate rotation, so that the flexible belt can be unwound more quickly; when the distance sensor detects that the pressure roller moves upward relative to the pressure roller support, the distance sensor sends a signal to control the paper roll to decelerate or stop rotating; during the movement of the cigarette, the above steps are repeated until the cigarette moves to the set position.

8. The cigarette insertion method as described in claim 5, characterized in that, The flexible strip is provided with a first mark and a second mark, and the cigarette holder further includes a photoelectric sensor, which is used to detect the first mark and the second mark. The cigarette receiving method also includes: When the cigarette moves to the set position, the photoelectric sensor detects the first mark, sends a signal to control the paper roll to stop rotating, and controls the clamping device to release the flexible strip. Then, it controls the paper roll to reverse and wind the flexible strip onto the paper roll. When the photoelectric sensor detects the second mark, it sends a signal to control the paper roll to stop rotating.

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