Pressure adjusting structure for winding drum wrapping

Abstract

The utility model discloses a pressure adjusting structure for wrapping a winding drum, which comprises three holding drill rods arranged around a winding drum drill rod, and the three holding drill rods comprise two upper holding drill rods positioned above the winding drum drill rod and a lower holding drill rod positioned below the winding drum drill rod; the clamping base is installed above the middle position of the two upper holding drill rods, the clamping base and the two upper holding drill rods move synchronously, the upper portions and the two sides of the two upper holding drill rods are located in the clamping base, the clamping base is in threaded connection with a plurality of adjusting screw rods, and the bottom ends of the adjusting screw rods abut against the upper portions and the side portions of the two upper holding drill rods respectively. The wrinkling phenomenon can be effectively reduced or even eradicated, and the compactness of the paper tube is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reel machine that carries out paper tube rolling processing, especially a tight package assembly in the reel. BACKGROUND

[0002] The paper tube is a key component of the firework, and the good paper tube can ensure that the effect reaches the requirement and the safety during the setting off. The present paper tube rolling is mostly formed by the full-automatic reel machine, and the full-automatic reel machine mainly comprises the paper roll, the paper feeding roller group, the cutter mechanism (assembly), the reel mechanism and the cutting mechanism arranged in sequence along the paper feeding direction. The original paper on the paper roll is clamped and driven by the paper feeding roller group, is glued and cut, the cut paper is sent to the reel mechanism to be rolled, and the reel mechanism mainly comprises the reel rod and the tight package assembly. The tight package assembly mainly comprises three reel rods arranged around the reel rod. When rolling, the end of the paper is inserted into the paper insertion gap of the reel rod, and then the three reel rods tightly wrap the reel rod to press the paper on the reel rod to be rolled. After the paper tube is rolled, the multiple parallel and parallel circular blades of the cutting mechanism cut the whole paper tube on the reel rod into several short paper tubes, and the cutting mechanism pushes the paper tube out of the reel rod after cutting.

[0003] The existing technology has the defects that the middle part of the whole paper tube on the reel rod is prone to wrinkle, especially when the paper of the rolled paper tube is thick or the wall of the paper tube is thick. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above-mentioned defects, the technical problem to be solved by the utility model is to provide a pressure adjusting structure for reel tight package, which can effectively reduce the wrinkle phenomenon. In order to solve the above-mentioned technical problem, the utility model adopts the technical scheme that a pressure adjusting structure for reel tight package comprises three reel rods arranged around the reel rod, and the three reel rods are composed of two upper reel rods located above the reel rod and a lower reel rod located below the reel rod. The utility model is characterized in that it further comprises a clamping seat installed above the middle part of the two upper reel rods, the clamping seat moves synchronously with the two upper reel rods, the upper part and the two sides of the two upper reel rods are located in the clamping seat, a plurality of adjusting screws are threadedly connected to the clamping seat, and the bottom end of each adjusting screw abuts against the upper part and the side part of the two upper reel rods.

[0005] The utility model has the beneficial effects that the wrinkle phenomenon can be effectively reduced or even eliminated, and the tightness of the paper tube is increased.

[0006] Preferably, the pressure adjusting mechanism comprises a pressure adjusting shaft arranged above the two upper reel rods, the pressure adjusting shaft is arranged axially parallel to the two upper reel rods, the pressure adjusting shaft moves synchronously with the two upper reel rods, and the clamping seat is hoisted in the middle of the pressure adjusting shaft through the connecting screw. The hoisting and fixing of the clamping seat are preferably realized, the adjusting effect is good, and the adaptability to the pressure change of each positioning spring is improved.

[0007] Preferably, the card seat is a "冖"-shaped card seat.

[0008] Preferably, the bottom ends of the adjusting screws respectively abut against the upper parts and side parts of the two upper holding drills through gaskets. Further, the abutting surfaces of the gaskets and the upper holding drills have arc surfaces that match the outer walls of the upper holding drills. This is beneficial to maintaining the rotatability of the upper holding drills and avoiding wear of the upper holding drills.

[0009] Preferably, the adjusting screw includes two side screws and two upper screws. The bottom ends of the two side screws respectively abut against the outer sides of the two upper holding drills; the bottom ends of the two upper screws respectively abut against the upper parts of the two upper holding drills. This facilitates separate adjustment as needed.

[0010] Preferably, the card seat is provided with a height adjustment component. This is to facilitate adjusting the installation height of the card seat.

[0011] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages.

[0012] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0013] It should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0014] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Attached Figure Description

[0018] Figure 1 This is a first-person view structural diagram of the clamping mechanism.

[0019] Figure 2 This is a second-view structural diagram of the clamping mechanism.

[0020] Figure 3 This is a third-view structural diagram of the clamping mechanism (incorporating an enlarged view of the gasket).

[0021] Figure 4 Schematic diagram of the fourth perspective structure of the wrapping mechanism (inserting paper into the paper insertion gap).

[0022] Explanation of the reference numerals in the drawings

[0023] 11. Reel brazing main shaft 12. Paper insertion gap 13. Reel brazing 14. Lever fulcrum shaft 15. Gasket 16. Joint 17. Arc surface 18. Upper brazing holder 19. Lower brazing holder 20. Pressure adjustment shaft 21. Brazing holder rocker arm 22. Paper 23. Pressure adjustment spring 24. Adjusting screw 25. Connecting screw 26. Card holder 27. Brazing holder lever 28. Adjusting nut. Specific implementation manners

[0024] See the appendix Figures 1-3 , which shows a specific structure of the present utility model. The reel mechanism of the full-automatic reel machine mainly includes a reel brazing 13 provided with a paper insertion gap 12 and a wrapping mechanism. The wrapping mechanism includes two upper brazing holders 18 distributed in an inverted triangular shape and a lower brazing holder 19. The three brazing holders are arranged around the reel brazing 13.

[0025] During operation, the driving transmission component drives the brazing holder rocker arm 21. The brazing holder rocker arm 21 successively drives the three brazing holders to make reciprocating motions through the lever fulcrum shaft 14 and the brazing holder lever 27, so as to switch between two states of clamping / opening:

[0026] In the clamping state: the three brazing holders move towards the reel brazing 13 and are respectively tangent to the outer periphery of the reel brazing 13, and elastically clamp and wrap the reel brazing 13 by relying on the elastic force of each pressure adjustment spring 23.

[0027] In the opening state: the three brazing holders move in the reverse direction and move away from the reel brazing 13, so as to facilitate the withdrawal of the wound paper tube from the reel brazing 13.

[0028] During starting of winding, first insert the end of the paper 22 into the paper insertion gap 12 of the reel brazing 13, and then the three brazing holders enter the clamping state to press the paper onto the reel brazing 13 for winding. The whole wound paper tube is cut by the tube cutting mechanism and pushed out from the reel brazing 13 by the tube pushing mechanism. The above processes are all mature technologies of the existing reel machines and will not be elaborated. The disadvantage is that wrinkles are likely to appear in the middle of the whole paper tube on the reel brazing 13, especially when the paper for winding the paper tube is relatively thick or the wall of the paper tube is relatively thick.

[0029] Therefore, we have improved the wrapping mechanism of the above-mentioned reel mechanism, and added the pressure adjustment mechanism for reel wrapping, including a card holder 26 fixedly hoisted above the middle parts of the two upper brazing holders 18. In the example, the card holder 26 is a "冖"-shaped card holder.

[0030] The retaining base 26 moves synchronously with the two upper clamping rods 18. The upper parts and sides of the two upper clamping rods 18 are located inside the retaining base 26. Four adjusting screws 24 are threadedly connected to the retaining base 26 through threaded holes. The bottom end of each adjusting screw 24 abuts against the upper part and side part of the two upper clamping rods 18. In this example, the four adjusting screws 24 include two side screws and two top screws. The bottom ends of the two side screws abut against the outer sides of the two upper clamping rods 18, respectively; the bottom ends of the two top screws abut against the upper parts of the two upper clamping rods 18, respectively. This allows for individual adjustment as needed.

[0031] Rotating the adjusting screw 24 allows for fine-tuning of the lateral and downward pressure exerted by the clamping seat on the middle of the two upper clamping rods 18 as needed, restraining the swaying of the middle of the two upper clamping rods 18 during the winding process; this causes a slight bend in the middle of the two upper clamping rods 18, increasing the clamping force of the middle of the two upper clamping rods 18 on the winding rod 13, thereby dispersing wrinkles in the middle of the paper tube during the winding process; thus, it can effectively reduce or even eliminate the occurrence of wrinkles. Moreover, the aforementioned fine-tuning can adapt to the pressure changes of the various pressure adjusting springs 23 during paper tube winding, increasing the tightness of the paper tube.

[0032] In the example, the pressure regulating assembly includes a pressure regulating shaft 20 disposed above the two upper clamping rods 18. The pressure regulating shaft 20 is axially parallel to the two upper clamping rods 18, and the pressure regulating shaft 20 and the two upper clamping rods 18 are mounted on the same end of the clamping rod lever 27 to achieve synchronous movement with the upper clamping rods. The clamping seat 26 is fixedly suspended in the middle of the pressure regulating shaft 20 by a connecting screw 25. This not only facilitates the suspension and fixation of the clamping seat, but also improves the adaptability to changes in the pressure of each positioning spring, resulting in a better adjustment effect. In the example, the clamping seat 26 is equipped with a height adjusting assembly—such as an adjusting nut 28 on the connecting screw 25 to adjust the installation height of the clamping seat 26.

[0033] In the example, the bottom ends of each adjusting screw 24 abut against the upper and side portions of the two upper clamping rods 18 via washers 15. In the example, the contact surface between the washers 15 and the upper clamping rods 18 has an arc surface 17 that mates with the outer wall of the upper clamping rods 18. The washers 15 also have connectors 16 that connect to the bottom ends of the adjusting screws 24. This helps maintain the rotatability of the upper clamping rods 18 and prevents wear on them.

[0034] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. A pressure regulating structure for a reel banding, comprising three banding reels disposed around a reel band, the three banding reels consisting of two upper banding reels located above the reel band and a lower banding reel located below the reel band; characterized in that, The clamping seat is installed above the middle part of the two upper holding drills, and the clamping seat moves synchronously with the two upper holding drills, the upper part and the side part of the two upper holding drills are located in the clamping seat, and a plurality of adjusting screws are threadedly connected to the clamping seat.

2. A pressure regulating structure for a roll wrapping according to claim 1, characterized in that, The pressure adjusting structure comprises a pressure adjusting shaft arranged above the two upper holding drills, the pressure adjusting shaft is arranged axially parallel to the two upper holding drills, and the pressure adjusting shaft moves synchronously with the two upper holding drills.

3. A pressure regulating structure for a reel wrapping according to claim 1 or 2, characterized in that, The bottom end of each adjusting screw abuts against the upper part and the side part of the two upper holding drills through a gasket.

4. A pressure regulating structure for a roll wrapping according to claim 3, wherein The abutting surface between the gasket and the upper holding drill has an arc surface matched with the outer wall of the upper holding drill.

5. A pressure regulating structure for a roll wrapping according to any one of claims 1, 2, 4, characterized in that, The adjusting screw comprises two side screws and two upper screws, the bottom end of each side screw abuts against the outer side of the two upper holding drills, and the bottom end of each upper screw abuts against the upper part of the two upper holding drills.

6. A pressure regulating structure for a roll wrapping as defined in claim 3, wherein The adjusting screw comprises two side screws and two upper screws, the bottom end of each side screw abuts against the outer side of the two upper holding drills, and the bottom end of each upper screw abuts against the upper part of the two upper holding drills.

7. A pressure regulating structure for a roll wrapping according to any one of claims 1, 2, 4, 6, characterized in that, The clamping seat is provided with a height adjusting assembly.

8. A pressure regulating structure for a roll wrapping according to any one of claims 1, 2, 4, 6, characterized in that, The clamping seat is a "L" type clamping seat.

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