A multi-track paper tube forming machine

Abstract

The present invention provides a multi-track paper tube forming machine, comprising a sequentially arranged unwinding module, a gluing module, and a forming module; the unwinding module is configured to synchronously supply multiple paper strips to the gluing module; the gluing module is provided with multiple paper strip channels, each corresponding to a corresponding glue gun for spraying glue onto the overlapped edges of the paper strips; the forming module is provided with multiple forming cavities, each corresponding to a paper strip channel, for rolling the paper strips into paper tubes. Compared to the prior art, the multi-track paper tube forming machine provided by the present invention can achieve the simultaneous production of multiple paper tubes, greatly improving paper tube production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of paper tube production equipment, and in particular to a multi-track paper tube forming machine. Background Art

[0002] Paper products are gradually replacing plastics due to their recyclability and low pollution. Paper tubes are tubular objects made from paper strips. In recent years, demand for thin paper tubes has surged across various industries. For example, paper tubes can be used in tobacco products, as wrappers, or for other functional structures.

[0003] Currently, paper tubes are usually made through automated processing using paper tube forming machines. However, most paper tube forming machines in the prior art are single-channel paper tube production machines (only one paper tube can be produced at a time), which has limited efficiency.

[0004] However, with the improvement of people's living standards and the increase in consumer demand, the production efficiency of existing paper tube forming machines has become increasingly unable to meet the growing consumer demand.

[0005] Therefore, how to provide a paper tube forming machine to improve the production efficiency of paper tubes is a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0006] In response to the technical problem that most existing paper tube forming machines only produce paper tubes in a single channel, resulting in low production efficiency, the present invention provides a multi-track paper tube forming machine that can produce multiple paper tubes simultaneously, thereby improving paper tube production efficiency and better meeting growing consumer demand.

[0007] A multi-track paper tube forming machine comprises an unwinding module, a gluing module and a forming module which are arranged in sequence;

[0008] The unwinding module is used to synchronously provide multiple paper tapes to the gluing module;

[0009] The gluing module is provided with a plurality of paper tape channels, and each of the paper tape channels is provided with a glue gun corresponding thereto, and the glue gun is used to spray glue onto the overlap of the paper tape;

[0010] The forming module is provided with a plurality of forming cavities, the forming cavities being arranged in one-to-one correspondence with the paper tape channels, and the forming cavities being used to roll the paper tape into a paper tube.

[0011] Preferably, the unwinding module includes a frame and a plurality of unwinding units mounted on the frame, and the unwinding units are used to install and place paper rolls;

[0012] Wherein, the paper roll installation positions of each unwinding unit are staggered with each other along the axial direction.

[0013] Preferably, the unwinding unit includes an unwinding part, a connecting part, and a tension control part;

[0014] The unwinding part is connected to the connecting part and is used to install and place the paper roll;

[0015] The connecting portion is connected to the frame;

[0016] The tension control part is connected to the unwinding part and is used to control the unwinding tension of the unwinding part.

[0017] Preferably, the gluing module includes a gluing base plate and the glue gun;

[0018] The paper tape channel is provided on the glue-coated bottom plate, and the paper tape channel extends along the length direction of the glue-coated bottom plate;

[0019] The glue gun is mounted on the glue coating base plate via a moving unit, and the moving unit is used to drive the glue gun to move so as to adjust the spraying position of the glue gun.

[0020] Preferably, a pre-pressing module is further provided between the gluing module and the forming module, and the pre-pressing module comprises a pre-pressing bottom plate, a pre-pressing block and a core shaft;

[0021] The pre-pressing bottom plate is provided with a pre-pressing channel, the pre-pressing channel is arranged in a one-to-one correspondence with the paper tape channel, and a pre-pressing block is correspondingly arranged above each pre-pressing channel;

[0022] The core shaft is arranged on the pre-pressing block and extends into the forming cavity.

[0023] Preferably, the forming module includes a forming plate group, a conveying and guiding module, and a hot pressing module;

[0024] The cloth belt in the conveying and guiding module passes through the forming plate group, and the cloth belt in the conveying and guiding module is used to drive the paper belt to move and roll the paper belt into shape;

[0025] The hot pressing module can be flipped and arranged above the forming plate group to heat the hot melt adhesive on the paper tape.

[0026] Preferably, the forming module further includes a cooling and shaping module, which is located above the forming plate group and behind the hot pressing module, and is used to cool and shape the paper tube.

[0027] Preferably, the conveying guide module is provided with a deviation-correcting structure, the cloth belt passes through the deviation-correcting structure, and the deviation-correcting structure is used to adjust the position of the cloth belt.

[0028] Preferably, it further comprises a paper tube gathering module, the paper tube gathering module being located at the rear side of the forming module, the paper tube gathering module comprising a gathering paper guide plate, wherein the gathering paper guide plate is provided with a guide channel for a plurality of paper tubes to flow through;

[0029] Along the conveying direction of the paper tube, the guide channel includes a first channel and a second channel that are connected in sequence;

[0030] Along the conveying direction of the paper tube, the first channel has a gradually decreasing width structure;

[0031] The width of the second channel is no greater than the minimum width of the first channel.

[0032] Preferably, a paper tube connecting glue gun is further provided in the paper tube gathering module, and the paper tube connecting glue gun extends into the second channel to spray glue onto the paper tubes to connect adjacent paper tubes.

[0033] Compared with the prior art, the multi-track paper tube forming machine provided by the present invention includes a rewinding module, a gluing module and a forming module arranged in sequence; the rewinding module is used to synchronously provide multiple paper tapes to the gluing module; the gluing module is provided with multiple paper tape channels, and each of the paper tape channels is correspondingly provided with a glue gun, and the glue gun is used to spray glue on the overlap of the paper tape; the forming module is provided with multiple forming cavities, and the forming cavities are arranged one-to-one corresponding to the paper tape channels, and the forming cavities are used to roll the paper tape into paper tubes. In the multi-track paper tube forming machine, the unwinding module can synchronously feed multiple paper tapes to the gluing module, and the gluing module is provided with multiple paper tape channels, and each paper tape channel is provided with a corresponding glue gun, so that multiple paper tapes can be sprayed with glue synchronously. At the same time, the forming module is provided with multiple forming cavities, so that multiple paper tubes can be formed synchronously, so that multiple paper tubes can be produced synchronously, thereby improving the production efficiency of paper tubes and better meeting the growing consumer demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 A front view of a multi-track paper tube forming machine provided in one embodiment;

[0036] Figure 2 for Figure 1 A side view of the unwinding module shown;

[0037] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the unwinding unit shown;

[0038] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the gluing module shown;

[0039] Figure 5 for Figure 1 A side view of the pre-compression module shown;

[0040] Figure 6 A front view of a forming module provided in accordance with an embodiment;

[0041] Figure 7 for Figure 6 The schematic diagram of the structure after some components are removed;

[0042] Figure 8 A schematic plan view of the structure of a deviation-correcting structure in a conveying guide module provided in one embodiment;

[0043] Figure 9 A schematic diagram of the planar structure of a hot pressing module provided in one embodiment;

[0044] Figure 10 A schematic diagram of the three-dimensional structure of a cooling and shaping module provided in one embodiment;

[0045] Figure 11 A schematic diagram of the three-dimensional structure of a paper tube gathering module provided in one embodiment;

[0046] Figure 12 for Figure 11 A schematic diagram of the three-dimensional structure of the bottom plate shown;

[0047] Figure 13 for Figure 11 a top view of the bottom plate shown;

[0048] Figure 14 For the Figure 13 Schematic diagram of the cross-sectional structure of AA shown;

[0049] Figure 15 for Figure 12 a right side view of the bottom plate shown;

[0050] Figure 16 for Figure 12 Left side view of the bottom plate shown;

[0051] Figure 17 In one embodiment, the paper tube passes through Figure 11 Schematic diagram of the structure before and after the paper tube gathering structure is shown. DETAILED DESCRIPTION

[0052] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0053] It should be noted that when a component is referred to as being “fixed on”, “mounted on” or “set on” another component, it can be directly on the other component or indirectly set on the other component; when a component is “connected” to another component, or a component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component.

[0054] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0056] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0057] The present invention provides a multi-track paper tube forming machine, which includes a sequentially arranged unwinding module, a gluing module, and a forming module; the unwinding module is configured to synchronously supply multiple paper strips to the gluing module; the gluing module is provided with multiple paper strip channels, and each of the paper strip channels is provided with a glue gun, and the glue gun is configured to spray glue on the overlapped joints of the paper strips; the forming module is provided with multiple forming cavities, each of which is provided in a one-to-one correspondence with the paper strip channels, and the forming cavities are configured to roll the paper strips into paper tubes. In the multi-track paper tube forming machine, the unwinding module is capable of synchronously feeding multiple paper strips to the gluing module, and the gluing module is provided with multiple paper strip channels, and each of the paper strip channels is provided with a glue gun, thereby synchronously spraying glue on the multiple paper strips. At the same time, the forming module is provided with multiple forming cavities, thereby synchronously forming multiple paper tubes, thereby enabling the simultaneous production of multiple paper tubes, thereby improving the production efficiency of paper tubes and better meeting the growing consumer demand.

[0058] Please refer to Figure 1 In one embodiment, a multi-track paper tube forming machine 100 is provided, which is mainly used to achieve synchronous production of multiple paper tubes and improve the production efficiency of paper tubes.

[0059] The multi-track paper tube forming machine 100 includes an unwinding module 10, a gluing module 20, and a forming module 30, which are sequentially arranged with reference to the conveying direction of the paper tape. The unwinding module 10 is used to synchronously provide multiple paper tapes to the gluing module 20. In other words, the unwinding module 10 is the feeding part, and the paper roll can be installed in the unwinding module 10. When the unwinding module 10 feeds the gluing module 20, it synchronously provides multiple paper tapes at once, thereby enabling the synchronous forming of multiple paper tubes in the multi-track paper tube forming machine 100.

[0060] Among them, the way in which the unwinding module 10 provides multiple paper tapes can be: multiple paper rolls are placed in the unwinding module 10, so that the gluing module 20 is fed respectively through multiple paper rolls to provide multiple paper tapes; or, a slitting mechanism is provided in the unwinding module 10, and the paper tape provided by one paper roll can be cut into multiple paper tapes through the slitting mechanism to provide multiple paper tapes.

[0061] Please refer to Figure 1 and Figure 4The gluing module 20 is provided with a plurality of paper tape channels 21, and each of the paper tape channels 21 is provided with a corresponding glue gun 22. The glue gun 22 is used to spray glue onto the overlapped edges of the paper tapes. In other words, the gluing module 20 is provided with a plurality of paper tape channels 21 corresponding to the plurality of paper tapes. The paper tapes can pass through the paper tape channels 21, and each of the paper tape channels 21 is provided with a corresponding glue gun 22. As the paper tapes flow through the glue guns 22, the glue guns 22 can spray glue onto the paper tapes. The glue sprayed by the glue guns 22 is sprayed onto the overlapped edges of the paper tapes, thereby facilitating the subsequent rolling of the paper tapes into paper tubes.

[0062] In this embodiment, "plurality" or "multiple" refers to at least two (two).

[0063] The forming module 30 is provided with multiple forming cavities, each corresponding to the paper tape channels 21. These cavities are used to roll the paper tape into paper tubes. In other words, the number and location of the forming cavities match the number and location of the paper tape channels 21, allowing the forming module 30 to simultaneously roll multiple paper tapes, thereby completing the simultaneous rolling and forming of multiple paper tubes.

[0064] The multiple paper tapes provided by the unwinding module 10 first flow through the gluing module 20 for gluing, and then flow into the forming module 30. The paper tapes are rolled and bent through the forming cavity in the forming module 30, so that the paper tapes are rolled and formed into paper tubes. Since glue is coated on the paper tapes, the overlaps on both sides of the paper tapes can be bonded by glue after rolling, thereby forming a stable paper tube.

[0065] Specifically, in one embodiment, the unwinding module 10 is used to synchronously provide three paper tapes, the gluing module 20 is provided with three paper tape channels 21, and the forming module 30 is provided with three forming cavities.

[0066] Specifically, in one embodiment, each module in the multi-track paper tube forming machine 100 is mounted on a frame 101. Adjustment margins are provided between each module to accommodate the requirements for rolling paper strips of varying widths. An electrical control box 102 is mounted on the frame 101 to control the operation of each module. A foot cup 103 is also provided at the bottom of the frame 101.

[0067] Please refer to Figure 2 and Figure 3Preferably, in one embodiment, the unwinding module 10 includes a frame 11 and a plurality of unwinding units 12 installed on the frame 11, and the unwinding unit 12 is used to install and place a paper roll 200 (wherein the paper roll is wound by a paper tape), so that the paper tape can be gradually unwound and fed to the rear side through the unwinding unit 12. That is to say, in this embodiment, the way in which the unwinding module 10 provides multiple paper tapes is specifically: multiple paper rolls 200 are placed in the unwinding module 10, so that the multiple paper rolls 200 are used to feed the gluing module 20 respectively, thereby providing multiple paper tapes. More preferably, the paper roll installation positions of each of the unwinding units 12 are staggered with each other along the axial direction. That is to say, as Figure 2 As shown, along the axial direction, the paper roll installation positions of each unwinding unit 12 are spaced apart from each other, so that the unwound paper tapes are spaced a certain distance apart along the width direction to avoid interference and winding.

[0068] Specifically, in one embodiment, three unwinding units 12 are provided, and the three unwinding units 12 are arranged in sequence from top to bottom.

[0069] Preferably, in one embodiment, the unwinding unit 12 includes an unwinding portion 121, a connecting portion 122, and a tension control portion 123. The unwinding portion 121 is connected to the connecting portion 122 and is used to mount the paper roll 200. The connecting portion 122 is connected to the frame 11. The tension control portion 123 is connected to the unwinding portion 121 and is used to control the unwinding tension of the unwinding portion 121.

[0070] Specifically, in one embodiment, the connecting portion 122 includes a fixing plate 1221, which is connected to the frame 11 via screws to achieve the installation of a single unwinding unit 12. The unwinding portion 121 includes an unwinding shaft 1211 and a clamping assembly disposed on the unwinding shaft 1211. The unwinding shaft 1211 is connected to the fixing plate 1221 via a bearing seat. The clamping assembly is used to clamp the paper roll 200. The clamping assembly includes a support bushing 1212, a clamping block 1213, and a locking nut 1214. The support bushing 1212 and the clamping block 1213 clamp the paper roll 200 via a step and an inclined surface, and the paper roll 200 is then fixed via the locking nut 1214.

[0071] Due to the consideration of moment balance, a counterweight rod 1222 is provided at the rear end of the fixed plate 1221. Preferably, in one embodiment, the connecting portion 122 further comprises a counterweight rod 1222 and a seat bearing plate 1223, the seat bearing plate 1223 is relatively spaced from the fixed plate 1221, the counterweight rod 1222 passes through the fixed plate 1221 and is connected to the seat bearing plate 1223, and the unwinding shaft 1211 passes through the seat bearing plate 1223. In one embodiment, after fixing a single unwinding unit 12, by changing the length of the counterweight rod 1222 between the fixed plate 1221 and the seat bearing plate 1223, the position of the paper roll 200 is offset by 24 mm, thereby achieving staggered installation of the three paper rolls 200. Specifically, in one embodiment, the tension control portion 123 can be mounted on the seat bearing plate 1223.

[0072] Preferably, in one embodiment, the tension control portion 123 includes a tension block 1231, a tension spring 1232, and a tension adjustment screw 1233. The tension block 1231 is provided with an arc-shaped groove, a friction plate bonded to the groove surface and in contact with the support bushing 1212. The flange of the tension adjustment screw 1233 at the rear end of the tension block 1231 presses against the tension spring 1232. By rotating the tension adjustment screw 1233, the tension spring 1232 is compressed or extended, thereby increasing or decreasing the friction force of the tension block 1231, thereby achieving tension control.

[0073] Specifically, in one embodiment, the frame 11 is an aluminum profile frame.

[0074] The design of the tension control part 123 and the counterweight rod 1222 realizes the control of the tension of the paper roll 200. This design ensures that the tension of the paper roll 200 is uniform during the unwinding process, thereby avoiding wrinkles and damage to the paper tape and improving the molding quality of the paper tube.

[0075] Please refer to Figure 4 Preferably, in one embodiment, the gluing module 20 includes a gluing base plate 23 and the glue gun 22. The paper tape channel 21 is provided on the gluing base plate 23 and extends along the length of the gluing base plate 23. The glue gun 22 is connected to a glue tank storing glue, and the gun head of the glue gun 22 is aligned with the edge of the paper tape channel 21, so that the glue sprayed from the glue gun 22 is sprayed into the overlapped edge of the paper tape.

[0076] The length direction of the glue-coated bottom plate 23 is Figure 4 In the X direction, the width direction of the glue-coated bottom plate 23 is Figure 4In the Y direction, the thickness direction of the glue-coated bottom plate 23 is Figure 4 Z direction shown.

[0077] The glue gun 22 is mounted on the glue coating base plate 23 via a movable unit 24. The movable unit 24 is used to move the glue gun 22 to adjust the glue gun's spraying position. Specifically, the movable unit 24 can move the glue gun 22, thereby changing the relative position between the glue gun 22 and the glue coating base plate 23, thereby adjusting the glue gun's 22 spraying position on the paper strip. Specifically, in one embodiment, the movable unit 24 may be a biaxial movable unit, capable of moving the glue gun 22 in two directions (e.g., the width and thickness of the glue coating base plate 23). The provision of the movable unit 24 enables fine adjustment of the glue coating position and facilitates cleaning of the glue gun 22 tip.

[0078] Specifically, in one embodiment, a groove may be further provided on the glue coating base plate 23 so that the moving unit 24 can drive the glue gun 22 to move.

[0079] Specifically, in one embodiment, the glue gun 23 is connected to the mobile unit 24 via a fixed base plate 25, the mobile unit 24 is connected to the glue coating base plate 23 via a support bar 26, and the support bar 26 is fixedly connected to the glue coating base plate 23 via screws.

[0080] Specifically, in one embodiment, the three equidistant paper tapes coming out of the unwinding module 10 are transported to the gluing module 20 and are glued through the gluing base plate 23 in cooperation with the glue gun 22 .

[0081] Preferably, in one embodiment, the glue coating base plate 23 is further provided with an inspection and cleaning hole 231, which penetrates the glue coating base plate 23 along the thickness direction of the glue coating base plate 23. The inspection and cleaning hole 231 is aligned with the gun tip of the glue gun 22, and each glue gun 22 is provided with a corresponding inspection and cleaning hole 231. It is understood that when the glue gun 22 is in operation, glue residue is easily retained on the gun tip of the glue gun 22, which may cause problems such as clogging of the gun tip, affecting the normal glue coating of the glue gun 22. Therefore, the gun tip of the glue gun 22 needs to be cleaned and maintained frequently. Through the provision of the inspection and cleaning hole 231, when the gun head of the glue gun 22 needs to be cleaned and maintained, there is no need to disassemble the glue gun 22. Only the cleaning parts need to be passed through the inspection and cleaning hole 231 from the back side of the glue coating base plate 23 to clean the gun head of the glue gun 22. This can improve the cleaning and maintenance efficiency of the glue gun 22 and reduce the difficulty of cleaning and maintenance.

[0082] It is understandable that during the production process, the paper tape may be laterally offset due to various factors, resulting in a certain offset difference in the front and rear positions of the paper tape. Preferably, in one embodiment, the gluing module 20 also includes a gluing sliding unit 27, and the gluing base plate 23 is arranged on a slide of the gluing sliding unit 27, and the sliding direction of the slide is the width direction of the gluing base plate 23. The setting of the gluing sliding unit 27 can facilitate the adjustment of the lateral position of the gluing base plate 23 to better adapt to the offset of the paper tape. Specifically, the gluing sliding unit 27 can adopt any desired structure, such as an electric slide, a pneumatic slide, etc., and can even be manually driven, as long as it can drive the gluing base plate 23 to move laterally.

[0083] Specifically, in one embodiment, the glue gun 22 sprays hot melt glue onto the paper tape. Specifically, in one embodiment, the glue gun 22 is a dispensing valve.

[0084] The gluing module 20 can accurately adjust the gluing and forming positions. This design not only ensures the uniformity and accuracy of gluing, but also ensures the stability of the paper tape during the forming process, thereby improving the consistency and quality of the product.

[0085] Preferably, in one embodiment, a paper guide roller may be further provided between the unwinding module 10 and the gluing module 20 .

[0086] Please refer to Figure 1 and Figure 5Specifically, in one embodiment, the paper tapes provided by the unwinding module 10 are all paper tapes with a narrow width, so that paper tubes with a smaller diameter can be produced. Preferably, in one embodiment, a pre-pressing module 40 is further provided between the gluing module 20 and the forming module 30. The pre-pressing module 40 includes a pre-pressing base plate 41 and a pre-pressing block 42. A pre-pressing channel 411 is provided on the pre-pressing base plate 41. The pre-pressing channels 411 are arranged in a one-to-one correspondence with the paper tape channels 21, and a pre-pressing block 42 is correspondingly provided above each pre-pressing channel 411. That is, in this embodiment, the number and position of the pre-pressing channels 411 match the number and position of the paper tape channels 21, so that after each paper tape is glued in the gluing module 20, it can flow into the pre-pressing module 40 accordingly, and each paper tape is pre-pressed by the pre-pressing module 40 to facilitate the subsequent forming of the paper tube. It can be understood that the diameter of the paper tube formed in the multi-track paper tube forming machine 100 is smaller, so the forming difficulty is greater. Through the setting of the pre-pressing module 40, the paper tape can be pre-bent by the pre-pressing module 40, so that the paper tape enters the forming module 30 in a bent form, reducing the difficulty of the forming module 30 to roll the paper tape into the paper tube, and improving the stability of the multi-track paper tube forming machine 100 in forming the paper tube.

[0087] Specifically, in one embodiment, three pre-compression channels 411 are provided, and three pre-compression blocks 42 are provided accordingly.

[0088] Specifically, in one embodiment, the pre-pressing channel 411 is an arc-shaped groove structure as a whole, and the bottom of the pre-pressing block 42 is an arc-shaped structure, which is conducive to bending the paper tape.

[0089] Preferably, in one embodiment, a core shaft 43 is provided on the pre-pressing block 42, and the core shaft 43 extends into the forming cavity of the forming module 30. Therefore, when the forming module 30 rolls the paper strip into shape, the core shaft 43 can press against the inner side of the paper strip and provide support from the inner side of the paper tube, thereby ensuring that the paper tube is rolled and formed reliably and that the formed paper tube does not have problems such as concavity.

[0090] Specifically, in one embodiment, the pre-pressing block 42 is disposed on a pre-pressing bracket 44 .

[0091] Please refer to Figure 1Preferably, in one embodiment, the forming module 30 includes a forming plate group 31, a conveying and guiding module 32, and a hot pressing module 33. The cloth tape in the conveying and guiding module 32 passes through the forming plate group 31 and is used to drive the paper tape to move and roll the paper tape into shape. The hot pressing module 33 can be flipped and arranged above the forming plate group 31 to heat the hot melt adhesive on the paper tape. In other words, in this embodiment, the power provided by the conveying and guiding module 32 drives the paper tape to move, thereby also pulling the paper tape on the front side, thereby achieving continuous movement of the paper tape (paper tube) in the entire multi-track paper tube forming machine 100, allowing the paper roll 200 in the unwinding module 10 to be continuously unwound.

[0092] Please refer to Figure 6 and Figure 7 Specifically, in one embodiment, the conveying guide module 32 includes a drive unit (not shown), a driving wheel 321, a driven wheel 322, and a cloth belt 323. The drive unit is connected to the driving wheel 321 to drive the driving wheel 321 to rotate. The drive unit can be a motor. The driven wheel 322 includes a first driven wheel 3221 and a second driven wheel 3222. The first driven wheel 3221 and the second driven wheel 3222 are arranged parallel to each other and spaced apart.

[0093] The cloth belt 323 is provided with multiple (at least two) strips, and each cloth belt 323 is sequentially wound around the driving wheel 321, the first driven wheel 3221, and the second driven wheel 3222. That is, after the cloth belt 323 is wound around the driving wheel 321, it will first be wound around the first driven wheel 3221, then around the second driven wheel 3222, and then back to the driving wheel 321 via the second driven wheel 3222.

[0094] Preferably, in one embodiment, the cloth belt 323 passes through the pre-pressing module 40 .

[0095] Specifically, in one embodiment, three cloth belts 323 are provided, and the three cloth belts 323 are arranged parallel to each other and spaced apart along the axial direction of the driving wheel 321. The three cloth belts 323 are sequentially divided into a first cloth belt 3231, a second cloth belt 3232, and a third cloth belt 3233. Since there are three cloth belts 323, when the driving unit drives the driving wheel 321 to rotate, it can simultaneously drive the three cloth belts 323 to operate.

[0096] The forming plate assembly 31 is located behind the first driven wheel 3221, with the terms "rear" and "front" being relative to the direction of travel of the cloth belt 323. A accommodating channel is defined in the forming plate assembly 31. The accommodating channel includes a first channel, a second channel, and a third channel, spaced apart from each other along the width of the forming plate assembly 31 (the width of the forming plate assembly 31 is parallel to the axial direction of the driving wheel 321). The first cloth belt 3231 passes through the first channel, the second cloth belt 3232 passes through the second channel, and the third cloth belt 3233 passes through the third channel. Specifically, at least a portion of the accommodating channel has an arc-shaped cross-section, enabling the accommodating channel to bend the cloth belt 323 into an arc-shaped structure. As the cloth belt 323 moves the paper belt, the arc-shaped structure bends the cloth belt 323, thereby bending the paper belt into a paper tube. In other words, the cloth belt 323 is used to both move the paper belt and form the paper tube. The forming cavity for forming the paper tube is formed by bending and winding the cloth belt 323. After the paper belt enters the accommodating channel, the cloth belt 323 is guided by the accommodating channel and bends the paper belt, thereby forming the paper belt into a paper tube.

[0097] More preferably, in one embodiment, a pressing plate may be provided on the forming plate group 31 , and an arc groove may be provided on the lower side of the pressing plate to facilitate the forming of the paper tube.

[0098] It should be noted that in other embodiments, the number of cloth belts 323 may be greater, for example, a fourth cloth belt, a fifth cloth belt, etc. may be provided, and accordingly, the number of accommodating channels in the forming plate assembly 31 may also be changed accordingly. This embodiment is described using only three cloth belts 323 as an example.

[0099] The conveying guide module 32 is equipped with multiple cloth belts 323, which can synchronously drive multiple paper tubes to form and move, meeting the needs of forming and conveying multiple paper tubes. It is also equipped with multiple receiving channels to guide and shape the paper tubes during conveyance, ensuring that the paper tubes do not deflect during conveyance.

[0100] Preferably, in one embodiment, the conveying guide module 32 further includes an adjusting wheel set 325 and a tensioning wheel set 326. The adjusting wheel set 325 and the tensioning wheel set 326 are located behind the driving wheel 321 and in front of the first driven wheel 3221. The cloth belt 323 is wound around the adjusting wheel set 325 and the tensioning wheel set 326 before being wound back onto the first driven wheel 3221. The arrangement of the adjusting wheel set 325 and the tensioning wheel set 326 allows for control and tensioning of each cloth belt 323, ensuring stable operation.

[0101] Preferably, in one embodiment, an angle wheel may be further provided near the driving wheel 321 .

[0102] Preferably, in one embodiment, the adjustment wheel assembly 325 includes a first adjustment wheel 3251, a second adjustment wheel 3252, a third adjustment wheel 3253, and a fourth adjustment wheel 3254, which are sequentially arranged in parallel and spaced apart. The tensioning wheel assembly 326 includes a first tensioning wheel 3261, a second tensioning wheel 3262, and a third tensioning wheel 3263, which are sequentially arranged in parallel and spaced apart. The first tensioning wheel 3261 is located below the first adjustment wheel 3251 and the second adjustment wheel 3252, and is positioned between the first and second adjustment wheels 3251 and 3252. The second tensioning wheel 3262 is located below the second and third adjustment wheels 3252 and is positioned between the second and third adjustment wheels 3252 and 3253. The third tensioning wheel 3263 is located below the third and fourth adjustment wheels 3253 and is positioned between the third and fourth adjustment wheels 3253 and 3254. The first fabric tape 3231 passes through the tops of the first, second, and third adjustment wheels 3251, 3252, and 3253, then wraps around the bottom of the third tensioning wheel 3263 and exits through the top of the fourth adjustment wheel 3254. The second fabric tape 3232 passes through the tops of the first and second adjustment wheels 3251, 3252, then wraps around the bottom of the second tensioning wheel 3262 and exits through the tops of the third and fourth adjustment wheels 3253, 3254. The third fabric tape 3233 passes through the top of the first adjustment wheel 3251, then wraps around the bottom of the first tensioning wheel 3261 and exits through the tops of the second, third, and fourth adjustment wheels 3252, 3253, and 3254. This structure ensures the tensioning of the first, second, and third fabric tapes 3231, 3232, and 3233. At the same time, the first cloth belt 3231, the second cloth belt 3232, and the third cloth belt 3233 can be made of the same length and type, so that during maintenance, cloth belts of the same length and type can be used for maintenance and replacement.

[0103] Preferably, in one embodiment, the device further includes a first tensioning control unit 3264, a second tensioning control unit 3265, and a third tensioning control unit 3266. The first tensioning control unit 3264 is connected to the first tensioning wheel 3261 to drive the first tensioning wheel 3261 up and down. The second tensioning control unit 3265 is connected to the second tensioning wheel 3262 to drive the second tensioning wheel 3262 up and down. The third tensioning control unit 3266 is connected to the third tensioning wheel 3263 to drive the third tensioning wheel 3263 up and down. The provision of the tensioning control unit makes control of the tensioning wheels more convenient and simple. Furthermore, when the fabric belt 323 needs to be repaired or replaced, the fabric belt 323 can be loosened by simply raising the tensioning control unit, facilitating repair and replacement. After replacement, the fabric belt 323 can be tensioned by simply lowering the tensioning control unit. Specifically, the first tensioning control unit 3264 , the second tensioning control unit 3265 , and the third tensioning control unit 3266 may all adopt cylinders.

[0104] Preferably, in one embodiment, the conveying guide module 32 is provided with a deviation correction structure, through which the fabric belt 323 passes. The deviation correction structure is provided with a fabric belt deviation adjustment roller group 327, and three fabric belt deviation adjustment roller groups 327 are provided, with each fabric belt 323 passing through a corresponding fabric belt deviation adjustment roller group 327. The fabric belt deviation adjustment roller group 327 can be used to adjust the lateral position of the corresponding fabric belt 323 to prevent the fabric belt 323 from deflecting. Specifically, the fabric belt deviation adjustment roller group 327 is a manual deviation adjustment structure. The fabric belt deviation adjustment roller group 327 can be mounted on the truss 328.

[0105] Please refer to Figure 8Specifically, in one embodiment, the tape deflection adjustment roller assembly 327 includes a deflection adjustment roller 3271, a star-shaped handle 3272, a positioning pin 3273, a bearing bushing 3274, and a threaded shaft 3275. The deflection adjustment roller 3271 can be mounted on the threaded shaft 3275, the star-shaped handle 3272 can be mounted on one end of the threaded shaft 3275, and the bearing bushing 3274 is connected to the deflection adjustment roller 3271 and mounted on the positioning pin 3273. By rotating the star-shaped handle 3272 and utilizing the threaded interaction between the bearing bushing 3274 and the threaded shaft 3275, the deflection adjustment roller 3271 and the bearing bushing 3274 can be moved axially along the positioning pin 3273 as a whole. An annular groove is designed on the deviation adjustment roller 3271. The diameter of the groove is slightly smaller than the width of the cloth belt 323 and the groove should have a certain depth so that the cloth belt 323 can be well stuck and not detached when passing through the deviation adjustment roller 3271. After adjustment, the deviation adjustment roller 3271 can be aligned with the accommodating channel in the forming plate group 31.

[0106] By providing the cloth tape deviation adjustment roller group 327, the position and angle of the cloth tape can be flexibly adjusted to ensure accurate alignment of each paper tape during the production process.

[0107] Please refer to Figure 9 The hot pressing module 33 is primarily used for heating and gluing the paper tube after it is formed. Specifically, in one embodiment, the hot pressing module 33 includes a forming strip 331 and a flipping mechanism 332. The forming strip 331 houses a heater rod 3311 and a temperature sensor 3312. A controller supplies power to the heater rod 3311 to increase its temperature. The sensor 3312 detects the temperature signal, which is fed back to a thermostat via a junction box 3313. The thermostat then controls the controller, enabling real-time adjustment of the heater rod 3311, thereby precisely controlling the temperature of the heater rod 3311 and controlling the glue heating process. A handle 3321 is provided at the end of the flipping mechanism 332, which allows force to be applied to flip the entire module. A locking screw 3322 is also provided at the end of the flipping mechanism 332. This screw is used to connect and secure the module to other components when the module is lowered, thereby providing stable compression to the hot pressing module 33. The heating rod 3311 and the temperature sensor 3312 can achieve precise control of the glue drying process.

[0108] Please refer to Figure 10Preferably, in one embodiment, the forming module 30 further includes a cooling and shaping module 34, located above the forming plate assembly 31 and behind the hot pressing module 33, for cooling and shaping the paper tube. In other words, in this embodiment, after the cloth tape 323 drives the paper tape to move and form the paper tube, it first passes through the hot pressing module 33 to heat the glue, and then passes through the cooling and shaping module 34 to cool and shape the glue, ensuring the proper shaping of the paper tube.

[0109] Specifically, in one embodiment, the cooling and shaping module 34 includes a clamp 341 and a shaping plate 342. The clamp 341 is mounted on the truss 328, and the shaping plate 342 is positioned above the forming plate assembly 31. A circular arc groove may be formed on the lower surface of the shaping plate 342. The clamp 341 applies pressure to the paper tube entering the channel by pressing the shaping plate 342, further enhancing the paper tube shaping effect.

[0110] By providing the cooling and shaping module 34 , the cooling and shaping effect of the paper tube after the glue is dried is ensured, thereby further consolidating the forming quality of the paper tube.

[0111] Preferably, in one embodiment, a pressing block may be provided at the rear side of the cooling and shaping module 34 to further consolidate the paper tube forming effect.

[0112] Please refer to Figure 1 Preferably, in one embodiment, the multi-track paper tube forming machine 100 further includes a paper tube gathering module 50 , and the paper tube gathering module 50 is located at the rear side of the forming module 30 .

[0113] Please refer to Figures 11 to 17 The paper tube gathering module 50 includes a gathering guide plate 51, and a guide channel 52 for the paper tube to flow through is provided in the gathering guide plate 51. Figure 13 (L direction shown in the figure), the guide channel 52 includes a first guide channel 521 and a second guide channel 522 that are connected in sequence. The first guide channel 521 has a gradually decreasing width along the conveying direction of the paper tubes. Specifically, at least one of the side walls 5211 of the first guide channel 521 is inclined inward. As multiple paper tubes flow through the first guide channel 521, the outermost paper tubes are restrained and guided by the side walls 5211 of the first guide channel 521. This guide guides the outermost paper tubes inward during the flow of the paper tubes, thereby reducing the spacing between the paper tubes.

[0114] It can be understood that the maximum width and minimum width of the first guide channel 521 can be selected according to actual needs. The maximum width of the first guide channel 521 only needs to meet the following requirements: not less than the overall width occupied by each paper tube before being gathered, ensuring that each paper tube can smoothly enter the first guide channel 521.

[0115] The width of the second guide channel 522 is no greater than the minimum width of the first guide channel 521. Therefore, after the paper tubes flow out of the first guide channel 521, the sidewalls of the second guide channel 522 can continue to limit the outer paper tubes, ensuring that the outer paper tubes do not spread outward. Specifically, the overall width of the second guide channel 522 can be the same as the minimum width of the first guide channel 521, or a portion of the second guide channel 522 can be configured to have a tapered width.

[0116] Specifically, in one embodiment, the side walls 5211 on both sides of the first guide channel 521 are inclined inward, so as to achieve position limiting and guiding of the paper tubes located on both sides.

[0117] Specifically, in one embodiment, three paper tubes are required to flow through the guide channel 52, and the three paper tubes are spaced apart from each other. The maximum width of the first guide channel 521 is no less than the overall width of the three spaced-apart paper tubes, and the minimum width of the first guide channel 521 is no greater than the overall width of the three spaced-apart paper tubes. Therefore, after the three paper tubes flow through the first guide channel 521, the outermost paper tubes are guided inward, thereby reducing the distance between the paper tubes.

[0118] Preferably, in one embodiment, the second guide channel 522 includes a connecting channel 5221 and a forming channel 5222. One end of the connecting channel 5221 communicates with the first guide channel 521, and the forming channel 5222 communicates with the other end of the connecting channel 5221. In other words, when the paper tube flows through the guide channel 52, it flows through the first guide channel 521, the connecting channel 5221, and the forming channel 5222 in sequence. Along the width of the forming channel 5222, the bottom wall 52221 of the forming channel 5222 is divided into multiple bottom wall units, at least one of which has a sunken structure. A sunken structure refers to a bottom wall unit whose height is lower than that of the other bottom wall units. That is to say, among the bottom wall units in the forming channel 5222, at least one bottom wall unit has a height lower than that of the other bottom wall units, so that the height of the paper tube flowing through the bottom wall unit can be guided to decrease, forming a height difference between the paper tubes, allowing some paper tubes to be located on the relatively upper side and some paper tubes to be located on the relatively lower side, thereby completing the change of the paper tube height.

[0119] Preferably, in one embodiment, along the width direction of the forming channel 5222, the bottom wall 52221 of the forming channel 5222 is divided into a central bottom wall unit 522211 and side bottom wall units 522212 located on both sides of the central bottom wall unit 522211. Thus, when three paper tubes flow through the forming channel 5222, the paper tube in the center can descend, so that a height difference is formed between the central paper tube and the paper tubes on both sides. When the three paper tubes flow out of the forming channel 5222, an inverted "pin" - shaped paper tube group can be formed as a whole.

[0120] Preferably, the central bottom wall unit 522211 includes an inclined bottom wall 5222111 close to one side of the connecting channel 5221 and a parallel bottom wall 5222112 far from one side of the connecting channel 5221. Along the conveying direction of the paper tube, the height of the inclined bottom wall 5222111 gradually decreases. The parallel bottom wall 5222112 is connected to the lowermost end of the inclined bottom wall 5222111. That is to say, the side of the central bottom wall unit 522211 close to the connecting channel 5221 has a gradually downward - inclined structure (i.e., the inclined bottom wall 5222111), which can gradually guide the paper tube in the center to descend. During the descending process, there is no protruding step structure on the central bottom wall unit 5222111, so the paper tube is not easily damaged.

[0121] Preferably, in one embodiment, along the conveying direction of the paper tube, the head end of the forming channel 5222 is a width - tapering structure. Here, the head end of the forming channel 5222 refers to the part of the forming channel 5222 relatively close to the connecting channel 5221. It can be understood that since the paper tube on the central bottom wall unit 522211 will descend, a certain space will be vacated. By setting the head end of the forming channel 5222 as a width - tapering structure, during the flow of the upper paper tubes, the upper paper tubes will be guided to move inward, thereby reducing the interval distance between the upper paper tubes.

[0122] Specifically, in one embodiment, the side walls 52222 on both sides of the head end of the forming channel 5222 are both inclined inward, so as to limit and guide the paper tubes on both sides.

[0123] Preferably, in one embodiment, along the conveying direction of the paper tube, at least a part of the bottom wall 5212 of the first guiding channel 521 is a structure with gradually increasing height. That is, at least a part of the bottom wall 5212 in the first guiding channel 521 can lift the height of the paper tube, so as to facilitate the docking of the paper tube gathering module 50 with the front and rear devices. Specifically, in one embodiment, a raised bottom wall 52121 is provided in the bottom wall 5212 of the first guiding channel 521, and the raised bottom wall 52121 is a gradually upward inclined bottom wall.

[0124] Preferably, in one embodiment, the paper tube gathering module 50 further includes a paper tube connecting glue gun 53, and the gun head 531 of the paper tube connecting glue gun 53 extends into the second guiding channel 522 to apply glue to the paper tubes in the second guiding channel 522. By applying glue to the paper tubes through the paper tube connecting glue gun 53, the paper tubes can be firmly connected. The paper tube connecting glue gun 53 can be connected to structures such as a glue tank for storing glue, which is well known in the art and will not be elaborated here.

[0125] Specifically, in one embodiment, the gun head 531 of the paper tube connecting glue gun 53 extends into the central area of the forming channel 5222, so as to apply glue to the paper tube located in the center, bond the three paper tubes, and enable the three paper tubes to stably form an inverted "pin" - shaped paper tube group. And due to the extension of the gun head 531 of the paper tube connecting glue gun 53, it can also have a certain pressing effect to ensure that the central paper tube can move downward.

[0126] Preferably, in one embodiment, the gathering guide paper board 51 includes a bottom board 511 and a cover board 512 covering the bottom board 511, the guiding channel 52 is opened on the bottom board 511, and a glue gun hole 5121 for avoiding the paper tube connecting glue gun 53 is provided on the cover board 512. Through the setting of the cover board 512, the upper side of the paper tube can be limited. To prevent the paper tube from bouncing upward.

[0127] Specifically, in one embodiment, the cover board 512 is an acrylic cover board.

[0128] Preferably, in one embodiment, the paper tube gathering module 50 further includes a gathering sliding unit, wherein the gathering paper guide 51 is disposed on a slide of the gathering sliding unit, and the slide is slidable in the width direction of the gathering paper guide 51. The provision of the gathering sliding unit facilitates adjustment of the lateral position of the gathering paper guide 51 to better accommodate deviations of the paper tube (paper strip). Specifically, the gathering sliding unit can adopt any desired structure, such as an electric slide, a pneumatic slide, or even a manual drive, as long as it can drive the gathering paper guide 51 to move laterally.

[0129] Specifically, in one embodiment, the paper tube connection glue gun 53 is a dispensing valve.

[0130] Preferably, in one embodiment, the paper tube connection glue gun 53 is installed on a movable platform 55, and the movable platform 55 can drive the paper tube connection glue gun 53 to move, thereby accurately adjusting the dispensing position of the paper tube connection glue gun 53.

[0131] The gathering module 50 is used to achieve fine adjustment of the finished character structure of the three-way 24mm interval paper tube merging product, and can apply glue to the gaps between the three-track paper tubes to initially bond and fix the character-shaped paper tube group, so that it has a certain structural strength.

[0132] The multi-track paper tube forming machine 100 uses technologies such as multi-track synchronous unwinding, precise gluing, stable forming and efficient dry glue to realize the three-way small paper tube merging into a finished product character-shaped structure, significantly improving the efficiency and quality of paper tube production and meeting market demand.

[0133] The above description is only an embodiment of the present invention. It should be pointed out that those skilled in the art can make improvements without departing from the creative concept of the present invention, but these improvements all fall within the scope of protection of the present invention.

Claims

1. A multi-track paper tube forming machine, characterized in that: It includes an unwinding module, a gluing module and a forming module which are arranged in sequence; The unwinding module is used to synchronously provide multiple paper tapes to the gluing module; The gluing module is provided with a plurality of paper tape channels, and each of the paper tape channels is provided with a glue gun corresponding thereto, and the glue gun is used to spray glue onto the overlap of the paper tape; The forming module is provided with a plurality of forming cavities, each of which corresponds to the paper tape channel. The forming cavities are used to roll the paper tape into a paper tube. The glue coating module includes a glue coating base plate and the glue gun; The paper tape channel is provided on the glue-coated bottom plate, and the paper tape channel extends along the length direction of the glue-coated bottom plate; The glue gun is mounted on the glue coating base plate via a moving unit, and the moving unit is used to drive the glue gun to move so as to adjust the spraying position of the glue gun; A pre-pressing module is further provided between the gluing module and the forming module, and the pre-pressing module includes a pre-pressing base plate, a pre-pressing block and a core shaft; The pre-pressing bottom plate is provided with a pre-pressing channel, the pre-pressing channel is arranged in a one-to-one correspondence with the paper tape channel, and a pre-pressing block is correspondingly arranged above each pre-pressing channel; The core shaft is arranged on the pre-pressing block and extends into the forming cavity.

2. The multi-track paper tube forming machine according to claim 1, characterized in that: The unwinding module includes a frame and a plurality of unwinding units installed on the frame, and the unwinding units are used to install and place paper rolls; Wherein, the paper roll installation positions of each unwinding unit are staggered with each other along the axial direction.

3. The multi-track paper tube forming machine according to claim 2, characterized in that: The unwinding unit includes an unwinding part, a connecting part, and a tension control part; The unwinding part is connected to the connecting part and is used to install and place the paper roll; The connecting portion is connected to the frame; The tension control part is connected to the unwinding part and is used to control the unwinding tension of the unwinding part.

4. The multi-track paper tube forming machine according to claim 1, characterized in that: The forming module includes a forming plate group, a conveying and guiding module, and a hot pressing module; The cloth belt in the conveying and guiding module passes through the forming plate group, and the cloth belt in the conveying and guiding module is used to drive the paper belt to move and roll the paper belt into shape; The hot pressing module can be flipped and arranged above the forming plate group to heat the hot melt adhesive on the paper tape.

5. The multi-track paper tube forming machine according to claim 4, characterized in that: The forming module also includes a cooling and shaping module, which is located above the forming plate group and behind the hot pressing module, and is used to cool and shape the paper tube.

6. The multi-track paper tube forming machine according to claim 4, characterized in that: The conveying guide module is provided with a deviation-correcting structure, the cloth belt passes through the deviation-correcting structure, and the deviation-correcting structure is used to adjust the position of the cloth belt.

7. The multi-track paper tube forming machine according to claim 1, characterized in that: The paper tube gathering module is located at the rear of the forming module and includes a gathering guide plate, wherein a guide channel for multiple paper tubes to flow through is opened in the gathering guide plate; Along the conveying direction of the paper tube, the guide channel includes a first channel and a second channel that are connected in sequence; Along the conveying direction of the paper tube, the first channel has a gradually decreasing width structure; The width of the second channel is no greater than the minimum width of the first channel.

8. The multi-track paper tube forming machine according to claim 7, characterized in that: The paper tube gathering module is further provided with a paper tube connecting glue gun, which extends into the second channel to spray glue onto the paper tubes to connect adjacent paper tubes.

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