A high speed continuous longitudinal sealing device

Abstract

The utility model discloses a high -speed continuous longitudinal seal device relates to nicotine bag processing technical field. The high -speed continuous longitudinal seal device includes collar forming device, forming blanking pipe, longitudinal seal heating roller, passive support roller, longitudinal seal roller air cylinder and passive support roller air cylinder, the forming blanking pipe is through collar forming device and extends downward, and the non -woven cloth is arranged between the collar forming device inner wall and the forming blanking pipe outer wall, the longitudinal seal heating roller sets up below collar forming device, the passive support roller sets up in the side of forming blanking pipe away from longitudinal seal heating roller, longitudinal seal roller air cylinder is connected to longitudinal seal heating roller, and passive support roller air cylinder is connected to passive support roller. The high -speed continuous longitudinal seal device effectively reduces the radial pressure that longitudinal seal heating roller exerts to forming blanking pipe, avoids blanking pipe deformation to improve longitudinal seal seal quality. In addition, when replacing non -woven cloth, longitudinal seal heating roller can be away from forming blanking pipe, provides larger operating space, and effectively reduces the scald risk.

Description

Technical Field

[0001] This utility model relates to the field of nicotine bag processing technology, and in particular to a high-speed continuous longitudinal sealing device. Background Technology

[0002] Nicotine pouches, as an innovative tobacco alternative, have experienced rapid growth in the global market in recent years and are gradually gaining popularity among consumers. According to the Food and Drug Administration (FDA), a nicotine pouch is a small fibrous pouch that the user places between the gums and upper lip, allowing the nicotine to be absorbed through the oral mucosa. Compared to traditional tobacco products, nicotine pouches do not require combustion or heating, thus producing no smoke and reducing environmental pollution, offering significant environmental advantages.

[0003] In existing nicotine bag sealing processes, the nonwoven fabric overlap seam is typically heat-pressed by a heated roller fixed to the outside of the feed tube. However, during the heat-pressing process, the heated roller applies radial pressure to the feed tube, causing deformation and affecting the sealing quality. Furthermore, when changing the nonwoven fabric, operators must thread it near the high-temperature heated roller, posing a high risk of burns, and the confined operating space further complicates the process. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a high-speed continuous longitudinal sealing device.

[0005] The technical solution provided by this utility model is as follows: A high-speed continuous longitudinal sealing device, comprising: Collar forming device; A forming feed tube extends downward through the collar forming device, and non-woven fabric is inserted between the inner wall of the collar forming device and the outer wall of the forming feed tube; The longitudinal sealing heating roller is located below the collar forming device and is used to heat-press the longitudinal sealing position of the non-woven fabric wrapped on the outer wall of the forming feed tube. A passive support roller is disposed on the side of the forming feed tube away from the longitudinal sealing heating roller, and is used to provide support on the side opposite the hot pressing position of the longitudinal sealing heating roller; The longitudinal sealing roller cylinder is connected to the longitudinal sealing heating roller and is used to drive the longitudinal sealing heating roller closer to the non-woven fabric longitudinal sealing position on the forming feed tube, or to drive the longitudinal sealing heating roller away from the forming feed tube. A passive support roller cylinder is connected to the passive support roller and is used to drive the passive support roller closer to the opposite side of the nonwoven fabric longitudinal sealing position on the forming feed tube, or to drive the passive support roller away from the forming feed tube.

[0006] Furthermore, the longitudinal sealing roller cylinder controls the longitudinal sealing heating roller to apply a first pressure to the forming feed tube, and the passive support roller cylinder controls the passive support roller to apply a second pressure to the forming feed tube, wherein the first pressure and the second pressure are equal in magnitude.

[0007] Furthermore, the high-speed continuous longitudinal sealing device also includes a longitudinal sealing roller support, which rotatably supports the longitudinal sealing heating roller via bearings.

[0008] Furthermore, the high-speed continuous longitudinal sealing device also includes a linear guide rail, and the longitudinal sealing roller bracket is slidably mounted on the linear guide rail; The output end of the longitudinal sealing roller cylinder is connected to the longitudinal sealing roller bracket, and the longitudinal sealing roller cylinder drives the longitudinal sealing roller bracket to move along the linear guide rail.

[0009] Furthermore, the high-speed continuous longitudinal sealing device also includes a swing arm, one end of which is connected to the passive support roller, and the other end of which is connected to the output end of the passive support roller cylinder.

[0010] Furthermore, the longitudinal sealing heating roller is an active roller, and the longitudinal sealing heating roller is connected to an external power source through a gear transmission group.

[0011] Furthermore, the high-speed continuous longitudinal sealing device also includes a traction roller assembly, which is located below the longitudinal sealing heating roller and the passive support roller, and is used to pull the longitudinally sealed tubular nonwoven fabric downwards for output.

[0012] Furthermore, the traction roller assembly includes an outer traction roller group and an inner traction roller group arranged symmetrically along the radial direction of the forming feed tube; The linear velocity of the traction surface of the outer traction roller set and the inner traction roller set is the same as the linear velocity of the outer circumferential surface of the longitudinal sealing heating roller.

[0013] Compared with the prior art, the high-speed continuous longitudinal sealing device provided by this utility model embodiment has at least the following technical effects: The high-speed continuous longitudinal sealing device includes a collar forming device, a forming feed tube, a longitudinal sealing heating roller, a passive support roller, a longitudinal sealing roller cylinder, and a passive support roller cylinder. The forming feed tube extends downward through the collar forming device, and the non-woven fabric is laid between the inner wall of the collar forming device and the outer wall of the forming feed tube. The longitudinal sealing heating roller is located below the collar forming device and is used to heat-press the longitudinal sealing position of the non-woven fabric wrapped on the outer wall of the forming feed tube. The passive support roller is located on the side of the forming feed tube away from the longitudinal sealing heating roller and is used to provide support to the opposite side of the heat-pressing position of the longitudinal sealing heating roller. The longitudinal sealing roller cylinder is connected to the longitudinal sealing heating roller and is used to drive the longitudinal sealing heating roller closer to the longitudinal sealing position of the non-woven fabric on the forming feed tube, or to drive the longitudinal sealing heating roller away from the forming feed tube. The passive support roller cylinder is connected to the passive support roller and is used to drive the passive support roller closer to the opposite side of the longitudinal sealing position of the non-woven fabric on the forming feed tube, or to drive the passive support roller away from the forming feed tube. This high-speed continuous longitudinal sealing device effectively reduces the radial pressure exerted by the longitudinal sealing heating roller on the forming feed tube, preventing deformation of the forming feed tube and thus improving the longitudinal sealing quality. Furthermore, when changing nonwoven fabric, the longitudinal sealing heating roller can be positioned away from the forming feed tube, providing a larger operating space, which not only effectively reduces the risk of burns but also simplifies the process of changing the nonwoven fabric. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a high-speed continuous longitudinal sealing device in one embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of a high-speed continuous longitudinal sealing device in one embodiment of the present invention.

[0016] Reference numerals: 10, collar forming device; 20, forming feed tube; 30, longitudinal sealing heating roller; 40, passive support roller; 50, longitudinal sealing roller cylinder; 60, passive support roller cylinder; 70, longitudinal sealing roller bracket; 80, linear guide rail; 90, swing arm; 100, gear transmission group. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Most existing nicotine pouch sealing machines are based on food pouch or carton sealing equipment, modified from traditional oral cigarette sealing processes, and typically employ a multi-row intermittent sealing process. However, these machines are not suitable for the continuous sealing requirements of nicotine pouches.

[0023] Specifically, in the existing longitudinal sealing process of nicotine bags, the nonwoven fabric overlap seam is typically heat-pressed by a heating roller fixed to the outside of the feed tube. However, during the heat-pressing process, the heating roller applies radial pressure to the feed tube, causing deformation and affecting the quality of the longitudinal seal. Furthermore, when changing the nonwoven fabric, operators must thread it near the high-temperature heating roller, posing a high risk of burns, and the confined operating space increases the difficulty of changing the nonwoven fabric.

[0024] Therefore, please refer to the appendix. Figure 1 and attached Figure 2 As shown, one embodiment of this utility model provides a high-speed continuous longitudinal sealing device for continuously processing sheet nonwoven fabric into longitudinally sealed tubular nonwoven fabric. This high-speed continuous longitudinal sealing device includes a collar forming device 10, a forming feed tube 20, a longitudinal sealing heating roller 30, a passive support roller 40, a longitudinal sealing roller cylinder 50, and a passive support roller cylinder 60. The forming feed tube 20 extends downward through the collar forming device 10. The nonwoven fabric is laid between the inner wall of the collar forming device 10 and the outer wall of the forming feed tube 20. Under the guidance of the collar forming device 10, the sheet nonwoven fabric gradually rolls inward and downward, continuously wrapping around the outer wall of the forming feed tube 20, forming a longitudinal overlapping area on one side of the outer wall of the forming feed tube 20, which is the longitudinal sealing position to be sealed.

[0025] The longitudinal sealing heating roller 30 is positioned below the collar forming device 10 and is used to heat-press the longitudinal sealing position of the nonwoven fabric wrapped on the outer wall of the forming feed tube 20. The passive support roller 40 is positioned on the side of the forming feed tube 20 away from the longitudinal sealing heating roller 30 and is used to provide support to the opposite side of the heat-pressing position of the longitudinal sealing heating roller 30. The longitudinal sealing roller cylinder 50 is connected to the longitudinal sealing heating roller 30 and is used to drive the longitudinal sealing heating roller 30 closer to the longitudinal sealing position of the nonwoven fabric on the forming feed tube 20, or to drive the longitudinal sealing heating roller 30 away from the forming feed tube 20. The passive support roller cylinder 60 is connected to the passive support roller 40 and is used to drive the passive support roller 40 closer to the opposite side of the longitudinal sealing position of the nonwoven fabric on the forming feed tube 20, or to drive the passive support roller 40 away from the forming feed tube 20.

[0026] During the longitudinal sealing process, the longitudinal sealing roller cylinder 50 drives the longitudinal sealing heating roller 30 to move closer to the longitudinal sealing position of the nonwoven fabric on the forming feed tube 20, so that its heated surface is in close contact with the longitudinal sealing position to be sealed. At the same time, the passive support roller cylinder 60 drives the passive support roller 40 to move closer to the opposite side of the longitudinal sealing position of the nonwoven fabric on the forming feed tube 20, providing support for the hot pressing position of the longitudinal sealing heating roller 30. By setting the passive support roller 40, the compression deformation of the forming feed tube 20 by the longitudinal sealing heating roller 30 during the longitudinal sealing process is effectively avoided.

[0027] When the nonwoven fabric needs to be replaced, the longitudinal sealing roller cylinder 50 drives the longitudinal sealing heating roller 30 away from the forming feed tube 20. At the same time, the passive support roller cylinder 60 drives the passive support roller 40 away from the forming feed tube 20. At this time, an operating space is formed around the forming feed tube 20, which makes it easy for the operator to manually thread the end of the new nonwoven fabric between the inner wall of the collar forming device 10 and the outer wall of the forming feed tube 20, thereby effectively avoiding the risk of burns caused by the longitudinal sealing heating roller 30 being in a high-temperature state.

[0028] In this invention, the high-speed continuous longitudinal sealing device includes a collar forming device 10, a forming feeding tube 20, a longitudinal sealing heating roller 30, a passive support roller 40, and a passive support roller cylinder 60. The forming feeding tube 20 extends downward through the collar forming device 10, and the non-woven fabric is inserted between the inner wall of the collar forming device 10 and the outer wall of the forming feeding tube 20. The longitudinal sealing heating roller 30 is located below the collar forming device 10 and is used to heat-press the longitudinal sealing position of the non-woven fabric wrapped on the outer wall of the forming feeding tube 20. The passive support roller 40 is located away from the forming feeding tube 20. One side of the longitudinal sealing heating roller 30 provides support to the opposite side of the hot-pressing position of the longitudinal sealing heating roller 30. The longitudinal sealing roller cylinder 50 is connected to the longitudinal sealing heating roller 30 and is used to drive the longitudinal sealing heating roller 30 closer to the nonwoven fabric longitudinal sealing position on the forming feed tube 20, or to drive the longitudinal sealing heating roller 30 away from the forming feed tube 20. The passive support roller cylinder 60 is connected to the passive support roller 40 and is used to drive the passive support roller 40 closer to the opposite side of the nonwoven fabric longitudinal sealing position on the forming feed tube 20, or to drive the passive support roller 40 away from the forming feed tube 20. This high-speed continuous longitudinal sealing device effectively reduces the radial pressure applied by the longitudinal sealing heating roller 30 to the forming feed tube 20, avoiding deformation of the forming feed tube 20, thereby improving the longitudinal sealing quality. Furthermore, when changing the nonwoven fabric, the longitudinal sealing heating roller 30 can be moved away from the forming feed tube 20, providing a larger operating space, which not only effectively reduces the risk of burns but also reduces the difficulty of changing the nonwoven fabric.

[0029] It should be further explained that the longitudinal sealing roller cylinder 50 can control the radial pressure applied to the forming feed tube 20 by adjusting the air pressure. Similarly, the passive support roller cylinder 60 can also control the radial pressure applied to the forming feed tube 20 by adjusting the air pressure. In some optional embodiments, the longitudinal sealing roller cylinder 50 controls the longitudinal sealing heating roller 30 to apply a first pressure to the forming feed tube 20, and the passive support roller cylinder 60 controls the passive support roller 40 to apply a second pressure to the forming feed tube 20. Since the radial pressures applied by the longitudinal sealing heating roller 30 and the passive support roller 40 to the forming feed tube 20 are in opposite directions, by adjusting the air pressure of the longitudinal sealing roller cylinder 50 and the passive support roller cylinder 60, the first pressure and the second pressure can be made equal in magnitude, thereby canceling each other out and effectively preventing deformation of the forming feed tube 20.

[0030] In some alternative embodiments, the high-speed continuous longitudinal sealing device also includes a longitudinal sealing roller support 70, which rotatably supports the longitudinal sealing heating roller 30 via bearings.

[0031] In some optional embodiments, the high-speed continuous longitudinal sealing device further includes a linear guide rail 80, on which the longitudinal sealing roller support 70 is slidably mounted; the output end of the longitudinal sealing roller cylinder 50 is connected to the longitudinal sealing roller support 70, and the longitudinal sealing roller cylinder 50 drives the longitudinal sealing roller support 70 to move along the linear guide rail 80. The longitudinal sealing roller cylinder 50 drives the longitudinal sealing roller support 70 to move along the linear guide rail 80, causing the longitudinal sealing heating roller 30 to approach the longitudinal sealing position of the nonwoven fabric on the forming feed tube 20, or to move the longitudinal sealing heating roller 30 away from the forming feed tube 20. Specifically, when the nonwoven fabric needs to be replaced, the longitudinal sealing roller cylinder 50 drives the longitudinal sealing roller support 70 and the longitudinal sealing heating roller 30 together away from the forming feed tube 20, facilitating manual insertion of new nonwoven fabric by the operator.

[0032] In some optional embodiments, the high-speed continuous longitudinal sealing device further includes a swing arm 90, one end of which is connected to the passive support roller 40, and the other end of which is connected to the output end of the passive support roller cylinder 60. The passive support roller cylinder 60 drives the swing arm 90 to rotate, causing the passive support roller 40 to move closer to the opposite side of the nonwoven fabric longitudinal sealing position on the forming feed tube 20, or to move the passive support roller 40 away from the forming feed tube 20.

[0033] In some optional embodiments, the longitudinal sealing heating roller 30 is an active roller, connected to an external power source via a gear transmission assembly 100. However, the passive support roller 40 is a passively sliding roller, primarily used to assist in supporting the forming feed tube 20. Further, bearings are provided on the longitudinal sealing roller support 70, and the longitudinal sealing heating roller 30 is rotatably mounted on the longitudinal sealing roller support 70 via the bearings. The external power source transmits power to the longitudinal sealing heating roller 30 via the gear transmission assembly 100, driving the longitudinal sealing heating roller 30 to rotate actively.

[0034] In some alternative embodiments, the high-speed continuous longitudinal sealing device also includes a traction roller assembly disposed below the longitudinal sealing heating roller 30 and the passive support roller 40, for pulling the longitudinally sealed tubular nonwoven fabric downwards.

[0035] Specifically, the traction roller assembly includes an outer traction roller group and an inner traction roller group arranged symmetrically along the radial direction of the forming feed tube 20; wherein, the traction surface linear velocity of the outer traction roller group and the inner traction roller group is the same as the outer peripheral surface linear velocity of the longitudinal sealing heating roller 30, thereby enabling the longitudinally sealed tubular nonwoven fabric to be output at high speed and continuously.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-speed continuous longitudinal sealing device, characterized in that, include: Collar forming device; A forming feed tube extends downward through the collar forming device, and non-woven fabric is inserted between the inner wall of the collar forming device and the outer wall of the forming feed tube; The longitudinal sealing heating roller is located below the collar forming device and is used to heat-press the longitudinal sealing position of the non-woven fabric wrapped on the outer wall of the forming feed tube. A passive support roller is disposed on the side of the forming feed tube away from the longitudinal sealing heating roller, and is used to provide support on the side opposite the hot pressing position of the longitudinal sealing heating roller; The longitudinal sealing roller cylinder is connected to the longitudinal sealing heating roller and is used to drive the longitudinal sealing heating roller closer to the non-woven fabric longitudinal sealing position on the forming feed tube, or to drive the longitudinal sealing heating roller away from the forming feed tube. A passive support roller cylinder is connected to the passive support roller and is used to drive the passive support roller closer to the opposite side of the nonwoven fabric longitudinal sealing position on the forming feed tube, or to drive the passive support roller away from the forming feed tube.

2. The high-speed continuous longitudinal sealing device according to claim 1, characterized in that, The longitudinal sealing roller cylinder controls the longitudinal sealing heating roller to apply a first pressure to the forming feeding pipe, and the passive support roller cylinder controls the passive support roller to apply a second pressure to the forming feeding pipe, wherein the first pressure and the second pressure are equal in magnitude.

3. The high-speed continuous longitudinal sealing device according to claim 1, characterized in that, It also includes a longitudinal sealing roller support, which rotatably supports the longitudinal sealing heating roller via bearings.

4. The high-speed continuous longitudinal sealing device according to claim 3, characterized in that, It also includes a linear guide rail, on which the longitudinal sealing roller bracket is slidably mounted; The output end of the longitudinal sealing roller cylinder is connected to the longitudinal sealing roller bracket, and the longitudinal sealing roller cylinder drives the longitudinal sealing roller bracket to move along the linear guide rail.

5. The high-speed continuous longitudinal sealing device according to claim 1, characterized in that, It also includes a swing arm, one end of which is connected to the passive support roller, and the other end of which is connected to the output end of the passive support roller cylinder.

6. The high-speed continuous longitudinal sealing device according to claim 1, characterized in that, The longitudinal sealing heating roller is an active roller, and the longitudinal sealing heating roller is connected to an external power source through a gear transmission group.

7. The high-speed continuous longitudinal sealing device according to claim 1, characterized in that, It also includes a traction roller assembly, which is located below the longitudinal sealing heating roller and the passive support roller, and is used to pull the longitudinally sealed tubular nonwoven fabric downwards.

8. The high-speed continuous longitudinal sealing device according to claim 7, characterized in that, The traction roller assembly includes an outer traction roller group and an inner traction roller group arranged symmetrically along the radial direction of the forming feed tube; The linear velocity of the traction surface of the outer traction roller set and the inner traction roller set is the same as the linear velocity of the outer circumferential surface of the longitudinal sealing heating roller.

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