Pressing block structure and paper tube forming unit

Abstract

The utility model provides a pressing block structure which comprises a pressing block and an air hole formed in the pressing block. The pressing block is located on the rear side of a discharging port of a forming mechanism of the paper tube forming machine and extends in the conveying direction of paper tubes. The air holes are formed corresponding to the bonding positions of the paper tubes and used for being connected with an external air source so as to blow air flow to the bonding positions of the paper tubes. Meanwhile, the embodiment further provides a paper tube forming unit. Compared with the prior art, the pressing block structure and the paper tube forming unit provided by the utility model can improve the forming stability of the paper tube.

Description

Technical Field

[0001] This utility model relates to the field of paper tube production equipment technology, and in particular to a pressing structure and a paper tube forming unit. Background Technology

[0002] Paper tubes are tubular objects made from paper strips, and they have a wide range of uses in production and daily life. For example, paper tubes can be used in tobacco products as wrappers or other functional structures.

[0003] Currently, paper tubes are typically manufactured automatically using paper tube forming machines. These machines usually include a raw material placement area, a gluing mechanism, and a forming mechanism. During production, a paper roll made from paper strip is first placed in the raw material placement area. The paper strip then passes sequentially through the gluing mechanism and the forming mechanism. The gluing mechanism first sprays glue onto the overlapping edges of the paper strip, and then the forming mechanism winds the flat paper strip into a paper tube through a circular cavity. Because glue has been pre-applied to the paper strip by the gluing mechanism, the edges of the paper strip are glued together when the forming mechanism winds it into a tube, thus forming a stable paper tube.

[0004] However, in existing technologies, there is a certain distance between the forming mechanism and the downstream equipment. After the paper tube flows out of the forming mechanism, the glue does not firmly bond the paper tape, causing the paper tube to easily loosen and open at the bonding point, resulting in paper tube forming failure. Utility Model Content

[0005] In existing technologies, the paper tubes often fail to adhere firmly after exiting the forming mechanism, leading to easy detachment and opening at the joint, thus causing forming failure. This invention provides a pressure block structure located at the rear of the forming mechanism. The structure includes air holes positioned at the joint of the paper tube and connected to an external air source. This allows airflow to be delivered to the joint through the air holes as the paper tube exits the forming mechanism, preventing detachment and improving the stability of the paper tube forming process.

[0006] A pressure block structure includes a pressure block and air holes disposed on the pressure block;

[0007] The pressure block is located behind the discharge port of the forming mechanism of the paper tube forming machine and extends along the conveying direction of the paper tube.

[0008] The air hole is provided at the bonding point of the paper tube, and the air hole is used to connect to an external air source to blow airflow to the bonding point of the paper tube.

[0009] Preferably, the pressure block is elongated, and the length direction of the pressure block is along the conveying direction of the paper tube.

[0010] Preferably, the air vent includes a connecting air vent and an air blowing vent;

[0011] The connecting vent is used to connect to the external air source;

[0012] The air blowing holes are provided at the joints of the paper tube;

[0013] Along the length of the pressure block, multiple sets of air blowing holes are arranged sequentially, and each air blowing hole is connected to the connecting air hole.

[0014] Preferably, each group of air holes includes two air holes, and the two air holes in each group are spaced apart from each other along the width direction of the pressure block.

[0015] Preferably, the pressure block has an arc groove on the side facing the paper tube, and the arc groove extends along the length of the pressure block and penetrates the pressure block;

[0016] The air blowing hole is located inside the arc groove.

[0017] Preferably, it also includes a connecting plate and a mounting plate;

[0018] The pressure block is disposed on the connecting plate;

[0019] The connecting plate can be raised and lowered on the mounting plate.

[0020] Preferably, the pressure block is detachably mounted on the connecting plate.

[0021] Preferably, a guide structure is provided between the connecting plate and the mounting plate, the guide structure including a guide rail and a slider;

[0022] The guide rail is vertically mounted on the mounting plate;

[0023] The connecting plate is slidably connected to the guide rail via the slider.

[0024] Preferably, the mounting plate is provided with a limiting member, which is used to block the connecting plate to limit the sliding position of the connecting plate.

[0025] A paper tube forming unit includes a paper tube forming machine and a pressing structure as described in any one of the above descriptions, the pressing structure being disposed behind the discharge port of the forming mechanism of the paper tube forming machine.

[0026] Compared with the prior art, the pressing block structure provided by this utility model includes a pressing block and air holes disposed on the pressing block; the pressing block is located behind the discharge port of the forming mechanism of the paper tube forming machine and extends along the conveying direction of the paper tube; the air holes are disposed corresponding to the bonding joint of the paper tube and are used to connect with an external air source to blow airflow to the bonding joint of the paper tube. The pressing block structure is disposed behind the forming mechanism, and the pressing block structure is provided with the air holes. By connecting with an external air source through the air holes, the airflow provided by the external air source can be blown through the air holes to the bonding joint of the paper tube flowing out of the forming mechanism, thereby providing pressure to press the bonding joint of the paper tube tightly, thereby preventing the paper tube from loosening and opening after flowing out of the forming mechanism, thus improving the stability of paper tube forming. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A three-dimensional structural diagram of a pressure block structure provided in one embodiment;

[0029] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the pressure block shown;

[0030] Figure 3 for Figure 2 A three-dimensional structural diagram of the pressure block from another angle;

[0031] Figure 4 This is a schematic diagram of a structure in one embodiment where airflow is blown from the air holes in the pressure block to the paper tube;

[0032] Figure 5 This is a front view of some components in a paper tube forming unit provided in one embodiment. Detailed Implementation

[0033] To enable those skilled in the art to 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 described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on 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 or indirectly connected to the other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application 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 application.

[0036] 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 application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0037] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings 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 application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0038] This utility model provides a pressing block structure, which includes a pressing block and air holes disposed on the pressing block. The pressing block is located behind the discharge port of the forming mechanism of a paper tube forming machine and extends along the conveying direction of the paper tube. The air holes are disposed corresponding to the bonding joint of the paper tube and are used to connect to an external air source to blow airflow to the bonding joint of the paper tube. The pressing block structure is disposed behind the forming mechanism, and the air holes are provided in the pressing block structure. By connecting to an external air source through the air holes, the airflow provided by the external air source can be blown through the air holes to the bonding joint of the paper tube flowing out of the forming mechanism, thereby providing pressure to press the bonding joint of the paper tube tightly, thereby preventing the paper tube from loosening and opening after flowing out of the forming mechanism, thus improving the stability of paper tube forming.

[0039] Please refer to the following: Figures 1 to 4In one embodiment, a pressure block structure 100 is provided, which is mainly used to solve the problem that after the paper tube 200 leaves the forming mechanism of the paper tube forming machine, the paper tube is easy to loosen and open due to the glue not being firmly bonded, resulting in paper tube forming failure.

[0040] The pressing block structure 100 includes a pressing block 10 and air holes 20 disposed on the pressing block 10. The pressing block 10 is located behind the discharge port of the forming mechanism of the paper tube forming machine, wherein the rear side is with reference to the conveying direction of the paper tube 200. That is, when the paper tube 200 flows out of the discharge port of the forming mechanism, it will flow through the area where the pressing block 10 is located. Moreover, the pressing block 10 extends along the conveying direction of the paper tube, that is, the pressing block 10 has a certain length along the conveying direction of the paper tube 200, thereby improving the pressing effect on the paper tube 200.

[0041] The air vents 20 are positioned corresponding to the bonding area of ​​the paper tube 200. That is, after the pressure block 10 is installed, the air vents 20 on the pressure block 10 are directly facing the bonding area of ​​the paper tube 200. The air vents 20 are connected to an external air source to blow airflow onto the bonding area of ​​the paper tube 200. The external air source can be any device capable of providing stable airflow power. Because the air vents 20 are directly facing the bonding area of ​​the paper tube 200 and are connected to the external air source, the airflow provided by the external air source can be blown through the air vents 20 onto the bonding area of ​​the paper tube 200, thereby applying pressure to the bonding area and further tightening the adhesive. This prevents the paper tube 200 from loosening and opening after flowing out of the forming mechanism, thus shaping the paper tube 200.

[0042] In other words, in this embodiment, by additionally providing a pressure block 10 on the rear side of the forming mechanism, a certain amount of airflow can be blown onto the paper tube 200 through the air holes 20 in the pressure block 10, thereby providing a certain pressure to the paper tube 200, increasing the forming distance and time of the paper tube 200, and thus improving the stability of the forming of the paper tube 200. Furthermore, since the pressure is provided to the paper tube 200 through airflow, wear on the paper tube 200 can be minimized. It is understood that, to ensure the forming of the paper tube 200, the air pressure provided to the bonding area of ​​the paper tube 200 through the air holes 20 should not be too high; only a slight pressure is needed to prevent the paper tube 200 from loosening, thus avoiding inward compression deformation of the paper tube 200.

[0043] Preferably, in one embodiment, the pressure block 10 is elongated, and the length direction of the pressure block 10 is along the conveying direction of the paper tube 200. This allows for better shaping of the paper tube 200 and also facilitates the arrangement of the pressure block 10.

[0044] Preferably, in one embodiment, the air hole 20 includes a connecting air hole 21 and an air blowing hole 22. The connecting air hole 21 is used to connect to the external air source. Specifically, the connecting air hole 21 and the external air source can be connected through a pipeline. The air blowing hole 22 is provided at the bonding point of the paper tube 200. Along the length direction of the pressure block 10, multiple sets of air blowing holes 22 are arranged sequentially, and each air blowing hole 22 is connected to the connecting air hole 21. That is, in this embodiment, airflow is provided to the connecting air hole 21 through the external air source, and then the airflow flows into each air blowing hole 22 and then flows to the bonding point of the paper tube 200. Since multiple sets of air blowing holes 22 are arranged along the length direction of the pressure block 10, pressure can be continuously applied to the paper tube 200 during the flow process, preventing the paper tube 200 from loosening and opening.

[0045] Preferably, in one embodiment, each group of air holes 22 includes two air holes 22, and the two air holes 22 in each group are spaced apart from each other along the width direction of the pressure block 10, so that each group of air holes 22 can simultaneously apply pressure to the paper tube 200 at two points along the width direction to ensure the shaping effect.

[0046] Wherein, the length direction of the pressure block 10 is as follows Figure 1 As shown in the X direction, the width direction of the pressure block 10 is as follows: Figure 1 As shown in the Y direction, the height direction of the pressure block 10 is as follows: Figure 1 The Z direction is shown.

[0047] Preferably, in one embodiment, the pressure block 10 has an arcuate groove 11 on the side facing the paper tube 200. The arcuate groove 11 extends along the length of the pressure block 10 and penetrates the pressure block 10, meaning that the arcuate groove 11 has a structure with both ends completely open, allowing the paper tube 200 to flow smoothly into and out of the arcuate groove 11. The air blowing hole 22 is located inside the arcuate groove 11, so that airflow is blown out from the arcuate groove 11. The arcuate groove 11 is designed to better accommodate and avoid the paper tube 200.

[0048] Preferably, in one embodiment, the pressure block structure 100 further includes a connecting plate 30 and a mounting plate 40. The pressure block 10 is disposed on the connecting plate 30, and the connecting plate 30 is vertically and flexibly disposed on the mounting plate 40. This structure allows the pressure block 10 to be raised and lowered, thereby facilitating the maintenance and installation of the unit. Specifically, the connecting plate 30 can be connected to any driving mechanism (e.g., a cylinder, hydraulic cylinder, etc.), thereby providing power through the driving mechanism to raise and lower the connecting plate 30, which in turn raises and lowers the pressure block 10.

[0049] Preferably, in one embodiment, the pressure block 10 is detachably mounted on the connecting plate 30, thereby facilitating the inspection and replacement of the pressure block 10. Specifically, in one embodiment, the pressure block 10 and the connecting plate 30 are detachably connected by screws.

[0050] Preferably, in one embodiment, a guide structure 50 is provided between the connecting plate 30 and the mounting plate 40. The guide structure 50 includes a guide rail 51 and a slider 52. The guide rail 51 is vertically disposed on the mounting plate 40, and the connecting plate 30 is slidably connected to the guide rail 51 via the slider 52. The guide structure 50 provides a more stable guide for the lifting and lowering direction of the connecting plate 30.

[0051] Preferably, in one embodiment, a limiting member 60 is provided on the mounting plate 40 to block the connecting plate 30, thereby limiting the sliding position of the connecting plate 30. Specifically, in one embodiment, the limiting member 60 is disposed at the top of the mounting plate 40 to limit the height to which the connecting plate 30 rises.

[0052] Please refer to the following: Figure 5 Meanwhile, in one embodiment, a paper tube forming unit 1000 is also provided, which includes a paper tube forming machine 300 and the pressing structure 100, the pressing structure 100 being disposed on the rear side of the paper tube forming machine 300.

[0053] Specifically, in one embodiment, the paper tube forming machine 300 includes a raw material placement position 310, a gluing mechanism 320, and a forming mechanism 330. The raw material placement position 310 is used to place a paper roll. The paper strip in the paper roll first flows into the gluing mechanism 320 for gluing, and then flows into the cavity of the forming mechanism 330 to form the paper tube 200. The pressure block structure 100 is located behind the discharge port of the forming mechanism 330. More specifically, in one embodiment, the gluing mechanism 320 applies hot melt adhesive to the paper strip, and the forming mechanism 330 is provided with a hot pressing forming block.

[0054] Specifically, in one embodiment, the forming mechanism 330 is provided with a fabric conveying mechanism. The fabric conveying mechanism includes a driving wheel, a driven wheel, and a fabric belt wound between the driving wheel and the driven wheel. The driving wheel is connected to a motor, thereby driving the driving wheel to rotate, which in turn drives the fabric belt. The movement of the fabric belt continuously moves the paper tube 200 (paper belt). Furthermore, the fabric belt is used to roll the paper belt into the paper tube 200.

[0055] Preferably, in one embodiment, the paper tube forming unit 1000 further includes a small paper tube forming machine 400 located in front of the paper tube forming machine 300. The small paper tube forming machine 400 is used to form three small paper tubes with a diameter smaller than that of the paper tube 200. After forming the small paper tubes, the small paper tube forming machine 400 feeds them into the forming mechanism 330, so that the small paper tubes are located inside the paper tube 200, thereby making the final formed paper tube a multi-paper tube structure (i.e., a structure in which a large paper tube contains multiple small paper tubes), thus meeting the needs of production. Before the small paper tubes are fed into the forming mechanism 330, glue can be applied to bond the small paper tubes to the inner wall of the large paper tube, making the connection between the paper tubes stable; or, when the glue application mechanism 320 applies glue, glue is applied again to the inner side of the paper tube 200, thereby bonding the small paper tubes to the inner wall of the large paper tube, making the connection between the paper tubes stable.

[0056] The small paper tube forming machine 400 may also include a corresponding raw material placement position, a glue coating mechanism, and a forming mechanism, thereby realizing the automatic winding and forming of paper tape into paper tubes, which will not be elaborated here.

[0057] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A pressing block structure, characterized in that, Includes a pressure block and air holes provided on the pressure block; The pressure block is located behind the discharge port of the forming mechanism of the paper tube forming machine and extends along the conveying direction of the paper tube. The air hole is provided at the bonding point of the paper tube, and the air hole is used to connect to an external air source to blow airflow to the bonding point of the paper tube.

2. The pressing block structure according to claim 1, characterized in that, The pressure block is elongated, and its length is along the conveying direction of the paper tube.

3. The pressing structure according to claim 2, characterized in that, The air vent includes a connecting air vent and an air blowing vent. The connecting vent is used to connect to the external air source; The air blowing holes are provided at the joints of the paper tube; Along the length of the pressure block, multiple sets of air blowing holes are arranged sequentially, and each air blowing hole is connected to the connecting air hole.

4. The pressing block structure according to claim 3, characterized in that, Each group of air holes includes two air holes, and the two air holes in each group are spaced apart from each other along the width direction of the pressure block.

5. The pressing block structure according to claim 3, characterized in that, The pressure block has an arc groove on the side facing the paper tube, and the arc groove extends along the length of the pressure block and penetrates the pressure block; The air blowing hole is located inside the arc groove.

6. The pressing block structure according to claim 1, characterized in that, It also includes a connecting plate and a mounting plate; The pressure block is disposed on the connecting plate; The connecting plate can be raised and lowered on the mounting plate.

7. The pressing block structure according to claim 6, characterized in that, The pressure block is detachably mounted on the connecting plate.

8. The pressing block structure according to claim 6, characterized in that, A guide structure is provided between the connecting plate and the mounting plate, and the guide structure includes a guide rail and a slider. The guide rail is vertically mounted on the mounting plate; The connecting plate is slidably connected to the guide rail via the slider.

9. The pressing structure according to claim 6, characterized in that, The mounting plate is provided with a limiting member, which is used to block the connecting plate to limit the sliding position of the connecting plate.

10. A paper tube forming machine unit, characterized in that, The invention includes a paper tube forming machine and a pressing structure as described in any one of claims 1 to 9, wherein the pressing structure is disposed on the rear side of the discharge port of the forming mechanism of the paper tube forming machine.

Images