Paper tube core positioning and tensioning roller

Abstract

A paper tube core positioning tensioning roller comprises a tensioning roller body erected on a winding frame at the tail end of a non-woven fabric winding position, a long-strip-shaped tensioning air bag and a tensioning head, the tensioning roller body is hollow, the two ends of the tensioning roller body can be rotationally connected with the winding frame under the action of a driving motor, the tensioning air bag is elastic and arranged in the tensioning roller body, and the tensioning head is arranged on the tensioning roller body. An inflation head is arranged on one side of the tensioning roller body, the air inlet and outlet position of the tensioning air bag is communicated with the inflation head, the interior of the tensioning air bag is in a sealed state through the closed inflation head, a plurality of tensioning hole sets are formed in the periphery of the tensioning roller body in the circumferential direction and penetrate through the circumferential wall of the tensioning roller body, and each tensioning hole set is composed of a plurality of tensioning holes formed in the circumferential direction. One end of each tensioning head is fixedly connected with the outer surface of the tensioning air bag corresponding to the position of the tensioning hole, the other end of each tensioning head penetrates through the corresponding tensioning hole and is partially exposed out of the tensioning hole, and at least three tensioning heads penetrate through one tensioning hole group in the circumferential direction. The design has the advantages that the structure is exquisite, and the paper tube core can be positioned and tensioned.

Description

Technical Field

[0001] The utility model relates to the field of paper tube core positioning devices, in particular to a positioning tensioning roller for a paper tube core for winding non-woven fabrics. Background Art

[0002] In the process of rolling up the non-woven fabric after production and processing, the first step is to position the paper tube core used to roll up the non-woven fabric, and then the normal rolling operation of the non-woven fabric can be carried out. However, in some existing similar positioning devices, the structure of the positioning device is relatively too complicated and difficult to operate, and the paper tube core cannot be positioned simply and directly, which results in low efficiency in the non-woven fabric winding process. On the other hand, the existing positioning device generally puts the paper tube core on the outside of a rotatable cylindrical roller and directly rolls the non-woven fabric. Although the structure of this roller is extremely simple, in the winding process, the inner diameter of the paper tube core may be wound with paper tube cores of different inner diameters depending on the type and width of the non-woven fabric. This requires replacing the roller with the corresponding outer diameter to position the paper tube core. Moreover, in the process of cooperation between the roller and the paper tube core, as the non-woven fabric is rolled up, the roller and the paper tube core may slide, so that the non-woven fabric cannot be rolled up normally. This may require manual replacement and re-winding during the rolling process, which greatly reduces the processing efficiency of the non-woven fabric winding process. Summary of the Invention

[0003] The purpose of the utility model is to provide a paper tube core positioning and tensioning roller which has a compact structure and can perform paper tube core positioning and tensioning.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a paper tube core positioning tensioning roller, comprising a tensioning roller body mounted on the winding frame at the end of the non-woven fabric winding position, a long strip tensioning airbag, and a tensioning head. The interior of the tensioning roller body is hollow and can be rotatably connected to the winding frame at both ends under the action of a driving motor. The tensioning airbag is elastic and is arranged inside the tensioning roller body. An inflation head is provided on one side of the tensioning roller body. The air inlet and outlet positions of the tensioning airbag are connected to the inflation head. After closing, the inflation head makes the interior of the tensioning airbag sealed. The tensioning roller body is circumferentially penetrated through the circumferential wall of the tensioning roller body. A dry group of tensioning hole groups, the tensioning hole group is composed of a plurality of circumferentially arranged tensioning holes, one end of the tensioning head corresponds to the tensioning hole position and is fixedly connected to the outer surface of the tensioning airbag, and the other end passes through the corresponding tensioning hole and is partially exposed outside the tensioning hole. A group of tensioning hole groups has at least three tensioning heads distributed circumferentially. After the tensioning airbag is inflated and closed by the inflation head, part of the outer wall of the tensioning airbag is squeezed and fitted with the inner wall of the tensioning roller, and the tensioning head exposed outside the tensioning hole extends toward the outside of the tensioning roller body to make the tensioning head contact end contact with the inner wall of the paper tube core sleeved on the tensioning roller body, thereby realizing the tensioning positioning of the paper tube core.

[0005] Furthermore, at least three tensioning heads are evenly distributed on the upper side of the tensioning hole group.

[0006] Furthermore, the tensioning hole group is composed of a plurality of tensioning holes that are circumferentially arranged and staggered with each other, the tensioning heads correspond one to one with the tensioning holes, and two adjacent tensioning heads extend out of the tensioning roller body from the tensioning holes and open obliquely to both sides of the tensioning roller body to form an inverted eight-shaped opening.

[0007] The beneficial effects of the present invention are as follows: the present invention inflates and deflates the tensioning airbag located in the tensioning roller body through the inflating head to complete the inflation and deflation of the tensioning airbag, thereby realizing partial extension and retraction of the tensioning head fixed on the tensioning airbag, completing the tensioning and disengagement from the inner wall of the paper tube core with different inner diameters and different widths, and realizing the positioning and tensioning of paper tube cores of different sizes when they are sleeved outside the tensioning roller body. The air pressure in the tensioning airbag is adjusted to different heights conveniently and quickly by inflating and deflating the air, thereby flexibly adjusting the tensioning strength of the tensioning head The paper tube core is positioned on the tensioning roller body accurately, avoiding the problem that the tensioning strength of the tensioning head is too large or too small due to over-inflation or under-inflation, resulting in the paper tube core being damaged by the tensioning head or being completely unable to be tensioned. The installation arrangement of at least three tensioning heads on a group of tensioning hole groups also ensures that even when a paper tube core is positioned and tensioned by only one group of tensioning hole groups, the three tensioning heads can at least form a triangular tensioning area, and the paper tube core can also be accurately positioned on the tensioning roller body, avoiding the problem that a single group of tensioning hole groups cannot stably position and tension the paper tube core when it is used due to insufficient tensioning heads on the single group of tensioning hole groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the paper tube core positioning tensioning roller.

[0009] Figure 2 This is a schematic diagram of the internal structure of the paper tube core positioning tensioning roller after half-section.

[0010] Figure 3 It is a schematic diagram of the tensioning cooperation between an embodiment of a tensioning head and a paper tube core. DETAILED DESCRIPTION

[0011] In order to make the technical means, innovative features and functions of the present invention easy to understand, the present invention will be further described below.

[0012] like Figure 1-3As shown, the technical solution of the paper tube core positioning tensioning roller of the utility model comprises a tensioning roller body 1 mounted on the winding frame at the end of the non-woven fabric winding position, a long strip tensioning airbag 2, and a tensioning head 3. The interior of the tensioning roller body 1 is hollow and can be rotatably connected to the winding frame at both ends under the action of the driving motor. The tensioning airbag 2 is elastic and is arranged inside the tensioning roller body 1. An inflation head 4 is provided on one side of the tensioning roller body 1. The air inlet and outlet positions of the tensioning airbag 2 are connected to the inflation head 4. After closing, the inflation head 4 makes the interior of the tensioning airbag 2 sealed. The tensioning roller body 1 is circumferentially penetrated by a plurality of groups of tensioning holes on the circumferential wall of the tensioning roller body 1. The tensioning hole group is composed of a plurality of circumferentially arranged tensioning holes 5, one end of the tensioning head 3 is fixedly connected to the outer surface of the tensioning airbag 2 at a position corresponding to the tensioning hole 5, and the other end passes through the corresponding tensioning hole 5 and is partially exposed outside the tensioning hole 5. A group of tensioning hole groups has at least three tensioning heads 3 distributed circumferentially. After the tensioning airbag 2 is inflated and closed by the inflation head 4, part of the outer wall of the tensioning airbag 2 is squeezed and fitted with the inner wall of the tensioning roller body 1, and the tensioning head 3 exposed outside the tensioning hole 5 extends toward the outside of the tensioning roller body 1 to make the contact end of the tensioning head 3 contact the inner wall of the paper tube core sleeved on the tensioning roller body 1, thereby realizing the tensioning positioning of the paper tube core.

[0013] The utility model adjusts the internal air pressure of the tensioning airbag 2 by inflating and deflating the tensioning airbag 2, and then adjusts the tensioning strength of the tensioning head 3 by extending and retracting the tensioning head 3 fixedly connected to the tensioning airbag 2, thereby finally realizing the positioning and tensioning of paper tube cores of different sizes. The structure of the overall positioning tensioning roller is streamlined, and the tensioning operation is simple. The inner wall of a single paper tube core is tensioned by multiple tensioning heads 3, and the tensioning effect is better and more stable. It is not easy to loosen during the process of winding non-woven fabrics. After a long period of high-intensity work, the elasticity and airtightness of the tensioning airbag 2 may deteriorate or even leak, making it unusable. At this time, the tensioning airbag 2 can be replaced and the inflation head 4 can be maintained and repaired in time.

[0014] In actual application, generally at least three tensioning heads 3 are evenly distributed circumferentially on a tensioning hole group. The evenly distributed design of the tensioning heads 3 makes the contact support between the tensioning head 3 and the inner wall of the paper tube core more stable during the tensioning support process, and the force on the inner wall of the paper tube core is more uniform. In the process of winding the non-woven fabric, as the force on the paper tube core increases, the even force on the inner wall of the paper tube core makes it less likely for the paper tube core to loosen and fall, thereby causing the non-woven fabric to need to be rewound, effectively improving the stability of the non-woven fabric winding work of the tensioned paper tube core.

[0015] In actual production, some orders may require the use of non-cylindrical paper cores for winding non-woven fabrics. Therefore, in a preferred embodiment of the present invention, the tensioning hole group is composed of a plurality of circumferentially arranged and staggered tensioning holes 5. The tensioning heads 3 correspond to the tensioning holes 5 one by one. Two adjacent tensioning heads 3 extend from the tensioning holes 5 outside the tensioning roller body 1 and open obliquely to both sides of the tensioning roller body 1 to form an inverted figure-eight opening. This design makes it easier for the tensioning heads 3 exposed outside the tensioning roller body 1 to contact the irregular inner wall surface, thereby relatively easier to achieve tension and positioning of the non-cylindrical paper core on the tensioning roller.

[0016] During the long-term tensioning support process, the hard tensioning head 3 may leave tension marks on the inner wall of the paper tube core, and may even damage the inner wall of the paper tube core in serious cases. Therefore, in some orders with higher quality requirements, the tensioning head 3 will use relatively soft materials for tensioning the paper tube core, such as soft rubber, polyurethane, etc. Figure 3 As shown, although the tensioning head 3 made of these materials will undergo some deformation during the tensioning process, the design using these soft materials increases the contact area between the tensioning head 3 and the inner wall of the paper tube core, reduces the possibility of tensioning marks and damage on the inner wall of the paper tube core, and improves the overall quality specifications of the produced non-woven fabric roll.

[0017] Although the present invention has been disclosed above with reference to specific embodiments, they are not intended to limit the present invention. Any person skilled in the art may make slight changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended claims.

Claims

1. A paper tube core positioning tensioning roller, characterized in that: The invention comprises a tensioning roller body (1) mounted on a winding frame at the end of the non-woven fabric winding position, a long strip-shaped tensioning airbag (2), and a tensioning head (3); the tensioning roller body (1) is hollow inside and can be rotatably connected to the winding frame at both ends under the action of a driving motor; the tensioning airbag (2) is elastic and is arranged inside the tensioning roller body (1); an inflation head (4) is arranged on one side of the tensioning roller body (1); the air inlet and outlet positions of the tensioning airbag (2) are connected to the inflation head (4); when the inflation head (4) is closed, the inside of the tensioning airbag (2) is sealed; a plurality of tensioning hole groups are opened on the circumferential wall of the tensioning roller body (1); the tensioning hole groups are composed of a plurality of circumferentially arranged The tensioning head (3) is composed of a tensioning hole (5), one end of the tensioning head (3) is fixedly connected to the outer surface of the tensioning airbag (2) at a position corresponding to the tensioning hole (5), and the other end passes through the corresponding tensioning hole (5) and is partially exposed outside the tensioning hole (5). A group of tensioning holes has at least three tensioning heads (3) distributed circumferentially extending therethrough. After the tensioning airbag (2) is inflated and closed by the inflation head (4), part of the outer wall of the tensioning airbag (2) is pressed and fitted with the inner wall of the tensioning roller body (1), and the tensioning head (3) exposed outside the tensioning hole (5) extends toward the outside of the tensioning roller body (1) to make the abutting end of the tensioning head (3) abut against the inner wall of the paper tube core sleeved on the tensioning roller body (1), thereby realizing the tensioning and positioning of the paper tube core.

2. A paper tube core positioning tensioning roller according to claim 1, characterized in that: At least three tensioning heads (3) are evenly distributed on the upper side of the tensioning hole group.

3. A paper tube core positioning tensioning roller according to claim 1 or 2, characterized in that: The tensioning hole group is composed of a plurality of tensioning holes (5) which are arranged circumferentially and distributed in an interlaced manner. The tensioning heads (3) correspond to the tensioning holes (5) one by one. Two adjacent tensioning heads (3) extend out of the tensioning roller body (1) from the tensioning holes (5) and open obliquely to both sides of the tensioning roller body (1) to form an inverted eight-shaped opening.

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