A transparent paper conveying device and a cigarette packaging machine

Abstract

The utility model provides a kind of transparent paper conveying device, including release mechanism, traction mechanism, negative pressure air chamber, adjusting mechanism and detection piece, release mechanism includes reel, and one end of transparent paper is wound on reel;Traction mechanism is connected with the other end of transparent paper;Negative pressure air chamber is located between release mechanism and traction mechanism, and first opening and second opening are equipped on negative pressure air chamber, first opening is connected with negative pressure air source, and transparent paper can enter negative pressure air chamber by second opening;Adjusting mechanism is located downstream of negative pressure air chamber along the conveying direction of transparent paper, and adjusting mechanism is used to exert force on transparent paper when the offset of transparent paper along its width direction is generated, to correct the offset of transparent paper;Detection piece is used to detect whether the offset of transparent paper along its width direction is generated.The transparent paper conveying device provided by the utility model can correct the offset of transparent paper, improve product pass rate.In addition, the utility model further provides a cigarette packaging machine.

Description

Technical Field

[0001] This utility model relates to the field of cigarette packaging technology, and in particular to a transparent paper conveying device and a cigarette packaging machine. Background Technology

[0002] Existing cigarette packaging machines typically include a transparent paper conveying mechanism, which transports the transparent paper from the paper roll to the packaging station. After the transparent paper emerges from the paper roll, it is first conveyed by the transparent paper conveying mechanism to the cutter, where it is cut. The cut transparent paper is then transported to the packaging station.

[0003] Currently, due to the susceptibility of transparent paper to environmental influences during transport, it may fluctuate, causing it to shift along its width. When this shifted transparent paper is transported to the packaging station, it leads to misalignment of the overlap during packaging, affecting the product's appearance and resulting in a lower product yield. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that transparent paper easily deviates from the preset conveying trajectory during the current conveying process, affecting the product appearance. This invention provides a transparent paper conveying device and a cigarette packaging machine that can correct the deviation of the transparent paper, ensure the product appearance, and improve the product qualification rate.

[0005] This utility model provides a transparent paper conveying device, including a release mechanism, a traction mechanism, a negative pressure chamber, an adjusting mechanism, and a detection element. The release mechanism includes a roller, with one end of the transparent paper wound around it, and the roller can rotate around its own axis. The traction mechanism is connected to the other end of the transparent paper and is used to pull the transparent paper. The negative pressure chamber is located between the release mechanism and the traction mechanism. One end of the negative pressure chamber has a first opening, and the other end has a second opening. The first opening is connected to a negative pressure air source, and the second opening faces the transparent paper, allowing at least a portion of the transparent paper to enter the negative pressure chamber through the second opening. The adjusting mechanism is located downstream of the negative pressure chamber along the conveying direction of the transparent paper. The adjusting mechanism is used to apply force to the transparent paper when it deviates along its width direction to correct the deviation. The detection element is located downstream of the adjusting mechanism along the conveying direction of the transparent paper and is used to detect whether the transparent paper has deviated along its width direction.

[0006] According to another specific embodiment of this utility model, the adjusting mechanism includes a guide roller, a fixed base, and a driving unit. The guide roller extends along the width direction of the transparent paper, and its two ends are a free end and a connecting end, respectively. A hinge shaft is provided on the fixed base, and the extension direction of the hinge shaft is perpendicular to the width direction of the transparent paper. The connecting end is hinged to the fixed base via the hinge shaft. The driving unit is connected to the free end and is used to drive the guide roller to rotate around the hinge shaft, so that the free end moves closer to or further away from the transparent paper.

[0007] According to another specific embodiment of the present invention, the guide roller has a cavity inside, and the end of the guide roller has an air inlet that communicates with the cavity. The air inlet is connected to an external air source. Multiple air blowing holes are arranged sequentially along the axial direction of the guide roller on the circumferential surface of the guide roller. The air blowing holes are connected to the cavity and are used to blow air onto the transparent paper.

[0008] According to another specific embodiment of this utility model, the drive unit includes a mounting base, a motor, a gear, a rack, a connector, and a connecting rod. The motor is mounted on the mounting base. The gear is sleeved on the output shaft of the motor. The rack extends along a first direction, which is parallel to the extension direction of the hinge shaft. The rack is slidably mounted on the mounting base and can slide relative to the mounting base along the first direction. The gear meshes with the rack. The connector is located between the rack and the guide roller, and one end of the connector is fixedly connected to the end of the rack. The connecting rod is located between the connector and the guide roller, and one end of the connecting rod is hinged to the other end of the connector. The other end of the connecting rod is fixedly connected to the free end of the guide roller.

[0009] According to another specific embodiment of the present invention, the detection element is an ultrasonic detector, and the detection end of the ultrasonic detector faces one side of the transparent paper. When the area of ​​the ultrasonic detector covered by the transparent paper is greater than a first preset value or less than a second preset value, the ultrasonic detector can send a signal outward.

[0010] According to another specific embodiment of the present invention, it also includes a control unit, which is electrically connected to the motor and the detection element respectively. When the area of ​​the ultrasonic detector covered by the transparent paper is greater than a first preset value or less than a second preset value, the ultrasonic detector sends a signal to the control unit. The control unit is used to control the motor to rotate forward or backward by a certain angle when it receives the signal.

[0011] According to another specific embodiment of this utility model, the traction mechanism includes a traction roller and a driving member. The end of the transparent paper away from the release mechanism is wound around the traction roller, which is capable of rotating about its own axis. The driving member is connected to the traction roller and is used to drive the traction roller to rotate about its own axis.

[0012] The present invention also provides a cigarette packaging machine, including any of the aforementioned transparent paper conveying devices.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] This application incorporates a detection element and an adjustment mechanism, wherein the adjustment mechanism includes a guide roller, a fixed base, and a drive unit. When the detection element detects a misalignment of the transparent paper along its width direction, the adjustment mechanism activates, driving the guide roller to rotate around a hinge axis via the drive unit, causing the free end of the guide roller to move closer to or further away from the transparent paper. At this point, the original force balance between the guide roller and the transparent paper is disrupted. To restore balance, the guide roller exerts a force on the transparent paper, causing displacement along its width direction, thereby correcting the misalignment. This application effectively corrects the misalignment of the transparent paper, ensuring product appearance and improving product yield. Attached Figure Description

[0015] Figure 1 This diagram illustrates a transparent paper conveying device according to an embodiment of the present invention. Figure 1 ;

[0016] Figure 2 This diagram illustrates a transparent paper conveying device according to an embodiment of the present invention. Figure 2 ;

[0017] Figure 3 This diagram shows an adjustment mechanism provided in one embodiment of the present invention.

[0018] Figure label:

[0019] 1. Release mechanism; 11. Reel; 2. Traction mechanism; 21. Traction roller; 3. Negative pressure air chamber; 31. First opening; 32. Second opening; 4. Adjustment mechanism; 41. Guide roller; 411. Free end; 412. Connecting end; 413. Connecting rod; 414. Air blowing hole; 42. Fixed seat; 421. Hinge shaft; 43. Drive unit; 431. Mounting seat; 432. Motor; 4321. Output shaft; 433. Gear; 434. Rack; 435. Connector; 5. Detector; 6. Transparent paper; 7. Sliding seat. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] 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.

[0022] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] 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.

[0024] Currently, due to the susceptibility of transparent paper to environmental influences during transport, it may fluctuate, causing it to shift along its width. When this shifted transparent paper is transported to the packaging station, it leads to misalignment of the overlap during packaging, affecting the product's appearance and resulting in a lower product yield.

[0025] To solve the above-mentioned technical problems, this utility model provides a transparent paper conveying device and a cigarette packaging machine, which can correct the deviation of the transparent paper, ensure the product appearance, and improve the product qualification rate.

[0026] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below.

[0027] refer to Figures 1 to 3The present invention provides a transparent paper conveying device, including a release mechanism 1, a traction mechanism 2, a negative pressure air chamber 3, an adjustment mechanism 4, and a detection element 5.

[0028] For details, please refer to Figure 2 The release mechanism 1 includes a spool 11, with one end of the transparent paper 6 wound around the spool 11, which is rotatable about its own axis. The traction mechanism 2 is connected to the other end of the transparent paper 6 and is used to pull the transparent paper 6. The traction mechanism 2 includes a traction roller 21 and a drive member (not shown in the figure). The end of the transparent paper 6 away from the release mechanism 1 is wound around the traction roller 21, which is rotatable about its own axis. The drive member is connected to the traction roller 21 and is used to drive the traction roller 21 to rotate about its own axis.

[0029] refer to Figure 1 and Figure 2 The negative pressure air chamber 3 is located between the release mechanism 1 and the traction mechanism 2. One end of the negative pressure air chamber 3 has a first opening 31, and the other end has a second opening 32. The first opening 31 is connected to a negative pressure gas source (not shown in the figure), and the second opening 32 faces the transparent paper 6. When negative pressure gas is introduced into the first opening 31, the transparent paper 6 facing the second opening 32 will be drawn into the negative pressure air chamber 3 through the second opening 32 under the adsorption of the negative pressure gas. By drawing some of the transparent paper 6 into its interior, the negative pressure air chamber 3 keeps the transparent paper 6 in a taut state, preventing the transparent paper 6 from becoming uneven in length after being cut by the cutter due to slack, thus avoiding problems that do not meet production requirements.

[0030] refer to Figure 2 The adjusting mechanism 4 is along the conveying direction of the transparent paper 6 (e.g., Figure 2 (As shown in the M direction) is located downstream of the negative pressure air chamber 3. The adjusting mechanism 4 is used to apply force to the transparent paper 6 when it deviates along its width direction, so as to correct the deviation of the transparent paper 6. The detection element 5 is located downstream of the adjusting mechanism 4 along the conveying direction of the transparent paper 6. The detection element 5 is used to detect whether the transparent paper 6 deviates along its width direction.

[0031] Optionally, the detection element 5 is an ultrasonic detector, with its detection end facing one side of the transparent paper 6. For example, the detection end of the detection element 5 faces the left side of the transparent paper 6 (in this embodiment, "left" refers to the orientation such as...). Figure 1 As shown in direction A, the "right" direction is as follows: Figure 1 (as shown in direction B in the image) Figure 1As shown. When the area of ​​the transparent paper 6 covering the detection element 5 is within a preset range, the transparent paper 6 does not shift. The maximum value within the preset range is a first preset value, and the minimum value is a second preset value. When the area of ​​the transparent paper 6 covering the detection element 5 is greater than the first preset value (i.e., the transparent paper 6 shifts to the left), or when the area of ​​the transparent paper 6 covering the detection element 5 is less than the second preset value (i.e., the transparent paper 6 shifts to the right), the detection element 5 can send a signal outward.

[0032] Optionally, refer to Figure 1 and Figure 3 The adjusting mechanism 4 includes a guide roller 41, a fixed base 42, and a drive unit 43. The guide roller 41 runs along the width direction of the transparent paper 6 (e.g., ...). Figure 1 Extending in the X direction (as shown in the diagram), the guide roller 41 has a free end 411 and a connecting end 412 at its two ends. A hinge shaft 421 is provided on the fixed base 42, and the extension direction of the hinge shaft 421 is perpendicular to the width direction of the transparent paper 6. The connecting end 412 is hinged to the fixed base 42 via the hinge shaft 421. A drive unit 43 is connected to the free end 411 and is used to drive the guide roller 41 to rotate around the hinge shaft 421, so that the free end 411 moves closer to or further away from the transparent paper 6.

[0033] When the detection element 5 detects a shift in the width direction of the transparent paper 6, it sends a signal. Subsequently, the adjustment mechanism 4 begins operation, and the drive unit 43 starts to rotate the guide roller 41 around the hinge axis 421. When the transparent paper 6 shifts to the left, the drive unit 43 rotates the guide roller 41 around the hinge axis 421, bringing the free end 411 of the guide roller 41 closer to the transparent paper 6. When the transparent paper 6 shifts to the right, the drive unit 43 rotates the guide roller 41 around the hinge axis 421, moving the free end 411 of the guide roller 41 away from the transparent paper 6. When the guide roller 41 begins to rotate around the hinge axis 421, the original force balance between the guide roller 41 and the transparent paper 6 is broken. To restore the balance, the guide roller 41 exerts a force on the transparent paper 6, causing it to displace along its width direction, thereby correcting the shift of the transparent paper 6. This embodiment, by setting the adjustment mechanism 4, can correct the shift of the transparent paper 6, thereby ensuring the product appearance and improving the product qualification rate.

[0034] Further, refer to Figures 1 to 3 The drive unit 43 includes a mounting base 431, a motor 432, a gear 433, a rack 434, and a connector 435. The motor 432 is mounted on the mounting base 431. The gear 433 is sleeved on the output shaft 4321 of the motor 432. The rack 434 moves along a first direction (e.g., ...). Figure 1 and Figure 3Extending in the Y direction (as shown in the diagram), the first direction is parallel to the extension direction of the hinge shaft 421, and the gear 433 meshes with the rack 434. The rack 434 is slidably disposed on the mounting base 431 and can slide relative to the mounting base 431 in the Y direction. Exemplarily, the drive unit 43 also includes a sliding seat 7, which is slidably connected to the mounting base 431, such as... Figure 3 As shown, the rack 434 is slidably connected to the mounting base 431 via the sliding seat 7.

[0035] Further, refer to Figure 3 The guide roller 41 has a connecting rod 413 at its free end 411. A connecting member 435 is located between the rack 434 and the connecting rod 413. One end of the connecting member 435 is fixedly connected to the end of the rack 434, and the other end is hinged to one end of the connecting rod 413 of the guide roller 41. The other end of the connecting rod 413 is fixedly connected to the free end 411 of the guide roller 41. The connecting member 435 and the connecting rod 413 are used to transmit power between the rack 434 and the guide roller 41.

[0036] When the transparent paper 6 shifts along its width, the motor 432 starts, driving the gear 433 to rotate, which in turn drives the rack 434 to slide relative to the mounting base 431 in a first direction. During the sliding process, the rack 434 can apply power to the guide roller 41 through the connector 435 and the connecting rod 413, causing the guide roller 41 to rotate around the hinge axis 421, so that the free end 411 of the guide roller 41 moves closer to or away from the transparent paper 6. At this time, the original force balance between the guide roller 41 and the transparent paper 6 is broken. In order to restore the balance, the guide roller 41 will exert a force on the transparent paper 6, which can cause the transparent paper 6 to displace along its width, thereby correcting the shift of the transparent paper 6.

[0037] Optionally, the guide roller 41 has an internal cavity. An air inlet (not shown in the figure) communicating with the cavity is provided at the end of the guide roller 41, and the air inlet is connected to an external air source. Multiple equidistant air holes 414 are sequentially arranged along the axial direction of the guide roller 41 on its circumferential surface, such as... Figure 3 As shown. The air blowing hole 414 is connected to the cavity and is used to blow air onto the transparent paper 6. In this embodiment, by providing the air blowing hole 414, a small gap can be created between the guide roller 41 and the transparent paper 6 through air blowing. This not only reduces the friction between the guide roller 41 and the transparent paper 6, facilitating smooth transport of the transparent paper 6, but also prevents static electricity from forming between the transparent paper 6 and the guide roller 41, allowing the transparent paper 6 to maintain a taut state. The arrangement of multiple equally spaced air blowing holes 414 along the axial direction of the guide roller 41 ensures that the guide roller 41 can blow air onto the transparent paper 6 evenly.

[0038] Optionally, the transparent paper conveying device provided in this embodiment further includes a control unit (not shown in the figure), which is electrically connected to the motor 432 and the detection element 5 respectively. When the area of ​​the transparent paper 6 covering the detection element 5 is greater than a first preset value or less than a second preset value, the detection element 5 sends a signal to the control unit, which controls the motor 432 to rotate forward or backward by a certain angle when it receives the signal.

[0039] When the detection element 5 detects that the area of ​​the transparent paper 6 obscuring the detection element 5 is greater than a first preset value, i.e., when the guide roller 41 shifts to the left, the detection element 5 sends a signal to the control unit. Upon receiving the signal, the control unit controls the motor 432 to rotate clockwise by a certain angle, driving the guide roller 41 to rotate around the hinge axis 421 towards the transparent paper 6 by a certain angle, causing the free end 411 to move towards the transparent paper 6. At this time, the force exerted by the free end 41 on the transparent paper 6 increases, thereby enabling the transparent paper 6 to move a certain distance to the right along its width direction to correct the leftward shift of the transparent paper 6. When the detection element 5 detects that the area of ​​the transparent paper 6 obscuring the detection element 5 is less than a second preset value, i.e., when the guide roller 41 shifts to the right, the detection element 5 sends a signal to the control unit. Upon receiving the signal, the control unit controls the motor 432 to rotate counterclockwise by a certain angle, driving the guide roller 41 to rotate around the hinge axis 421 away from the transparent paper 6 by a certain angle, causing the free end 411 to move away from the transparent paper 6. At this time, the force exerted by the free end 41 on the transparent paper 6 will decrease, thereby enabling the transparent paper 6 to move a certain distance to the left along its width direction to correct the offset of the transparent paper 6 to the right.

[0040] This utility model also provides a cigarette packaging machine, including... Figures 1 to 3 Any of the transparent paper conveying devices shown.

[0041] Although 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 present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A transparent paper conveying device, characterized in that, include: A release mechanism includes a spool, one end of which is wound around the spool, and the spool is rotatable about its own axis. A traction mechanism, connected to the other end of the transparent paper, is used to pull the transparent paper. A negative pressure air chamber is provided between the release mechanism and the traction mechanism. One end of the negative pressure air chamber has a first opening and the other end has a second opening. The first opening is connected to a negative pressure air source, and the second opening faces the transparent paper. At least a portion of the transparent paper can enter the negative pressure air chamber through the second opening. An adjustment mechanism is located downstream of the negative pressure air chamber along the conveying direction of the transparent paper. The adjustment mechanism is used to apply a force to the transparent paper when the transparent paper deviates along its width direction, so as to correct the deviation of the transparent paper. A detection element is disposed downstream of the adjustment mechanism along the conveying direction of the transparent paper. The detection element is used to detect whether the transparent paper has an offset along its width direction.

2. The transparent paper conveying device as described in claim 1, characterized in that, The adjustment mechanism includes: A guide roller extends along the width of the transparent paper, with a free end and a connecting end at its two ends. A fixed base is provided with a hinge shaft, the extension direction of which is perpendicular to the width direction of the transparent paper, and the connecting end is hinged to the fixed base through the hinge shaft; A drive unit, connected to the free end, is used to drive the guide roller to rotate around the hinge axis so that the free end moves closer to or further away from the transparent paper.

3. The transparent paper conveying device as described in claim 2, characterized in that, The guide roller has a cavity inside, and an air inlet connected to the cavity is provided at the end of the guide roller. The air inlet is connected to an external air source. Multiple air blowing holes are arranged sequentially along the axial direction of the guide roller on the circumferential surface of the guide roller. The air blowing holes are connected to the cavity and are used to blow air onto the transparent paper.

4. The transparent paper conveying device as described in claim 2, characterized in that, The driving unit includes: Mounting base; The motor is mounted on the mounting base; A gear is fitted onto the output shaft of the motor; A rack extends along a first direction parallel to the extension direction of the hinge shaft. The rack is slidably mounted on the mounting base and can slide relative to the mounting base along the first direction. The gear meshes with the rack. A connector is disposed between the rack and the guide roller, and one end of the connector is fixedly connected to the end of the rack; A connecting rod is disposed between the connecting member and the guide roller. One end of the connecting rod is hinged to the other end of the connecting member, and the other end of the connecting rod is fixedly connected to the free end of the guide roller.

5. The transparent paper conveying device as described in claim 4, characterized in that, The detection device is an ultrasonic detector, and the detection end of the ultrasonic detector faces one side of the transparent paper. When the area of ​​the ultrasonic detector covered by the transparent paper is greater than a first preset value or less than a second preset value, the ultrasonic detector can send a signal outward.

6. The transparent paper conveying device as described in claim 5, characterized in that, It also includes a control unit, which is electrically connected to the motor and the detection element respectively. When the area of ​​the ultrasonic detector covered by the transparent paper is greater than the first preset value or less than the second preset value, the ultrasonic detector sends the signal to the control unit. The control unit is used to control the motor to rotate forward or backward by a certain angle when it receives the signal.

7. The transparent paper conveying device as described in claim 6, characterized in that, The traction mechanism includes: A traction roller, wherein the end of the transparent paper away from the release mechanism is wound around the traction roller, and the traction roller is capable of rotating about its own axis; A driving component, connected to the traction roller, is used to drive the traction roller to rotate about its own axis.

8. A cigarette packaging machine, characterized in that, Includes the transparent paper conveying device described in any one of 1-7 above.

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