A limiting device for strip deviation correction

Abstract

The present invention provides a limiting device for strip deviation correction, comprising a first limiting roller and a second limiting roller arranged in parallel, characterized in that an axial adjustment mechanism is arranged on the first and second limiting rollers, the axial adjustment mechanism comprises spiral grooves with opposite spiral directions respectively arranged on the roller surfaces at both ends of the first and second limiting rollers, limiting rings respectively sleeved on both ends of the first and second limiting rollers, and a slider is arranged on the inner circular wall of each limiting ring, and the slider is placed in the corresponding spiral groove. When the first and second limiting rollers are rotated with the rotary power machine as required, the two limiting rings thereon will move synchronously along the corresponding first and second limiting rollers under the cooperation of the slider and the corresponding spiral groove, so as to realize the distance adjustment between the two limiting rings, adapt to the limiting requirements of strips of different widths, have a simple structure, convenient and quick adjustment, and high limiting reliability and stability.

Description

Technical Field

[0001] The invention relates to a strip limiting device, in particular to a strip limiting device for correcting deviation, and belongs to the technical field of mechanical equipment design and manufacturing. Background Art

[0002] In industrial production, the supply of strip materials is relatively common. In the process of strip supply, in order to prevent the strip from deflecting during operation, a limit device is usually used to limit the position. Since the existing limit devices are all fixed structures, and the supply of strips must use strips of different widths according to production needs, once the width of the strip changes, the existing limit devices will be difficult to adapt to the width change and lose their limiting function. For this reason, most of the existing technologies are equipped with limit devices of different widths, which not only increases investment, but also makes it difficult to ensure that any width change can be applied to the corresponding limit device. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a limiting device with a simple structure and adjustable limiting width.

[0004] The present invention is achieved through the following technical solutions: a limiting device for strip deviation correction, comprising a first and a second limiting roller arranged in parallel, characterized in that an axial adjustment mechanism is arranged on the first and the second limiting rollers, the axial adjustment mechanism comprising spiral grooves with opposite spiral directions respectively arranged on the roller surfaces at both ends of the first and the second limiting rollers, and limiting rings respectively sleeved on both ends of the first and the second limiting rollers, a slider is provided on the inner circular wall of each limiting ring, and the slider is placed in the corresponding spiral groove, so that when the first and the second limiting rollers are rotated with the rotating power machine as needed, the two limiting rings on the first and the second limiting rollers will move synchronously along the corresponding first and second limiting rollers under the cooperation of the slider and the corresponding spiral groove, so as to realize the distance adjustment between the two limiting rings and adapt to the limiting requirements of strips of different widths.

[0005] A positioning mechanism is arranged on the first and second limiting rollers, and the positioning mechanism includes two positioning rods which are respectively screwed on the seat bearings connected to the first and second limiting rollers, and the two positioning rods are respectively clamped in the grooves of the outer circle of the corresponding limiting rings, and positioning blocks are sleeved on the two positioning rods, so that when the limiting rings on the first and second limiting rollers are adjusted into place, the two positioning rods with positioning blocks thereon are screwed on the seat bearings and clamped in the grooves of the outer circle of the corresponding limiting rings, so that the positioning blocks limit the movement of the limiting rings, thereby completing the positioning of the limiting rings and preventing the limiting rings from moving any more.

[0006] The common ends of the first and second limiting rollers are respectively connected to the corresponding transmission wheels through the corresponding seat bearings, and the two transmission wheels are connected through a transmission mechanism belt. The second limiting roller is connected to the rotary power machine so that the first and second limiting rollers can be rotated through the transmission belt and pulley under the drive of the rotary power machine.

[0007] The present invention has the following advantages and effects: by adopting the above scheme, the first and second limiting rollers can be rotated with the rotating power machine as needed, and the two limiting rings on the first and second limiting rollers will move synchronously along the corresponding first and second limiting rollers under the cooperation of the slider and the corresponding spiral groove, so as to realize the distance adjustment between the two limiting rings and adapt to the limiting requirements of strips of different widths. It has a simple structure and is convenient and quick to adjust. After adjustment, the two limiting rings are no longer moved through the positioning mechanism, and it has the advantages of flexible limiting adjustment, high limiting reliability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the present invention;

[0009] Figure 2 for Figure 1 Schematic diagram of the limiting roller structure;

[0010] Figure 3 for Figure 2 Schematic diagram of the limiting ring structure in FIG.

[0011] Figure 4 This is a schematic diagram of the application of the present invention. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the accompanying drawings.

[0013] The limiting device for strip deviation correction provided by the present invention comprises first and second limiting rollers 31 and 32 arranged in parallel, which are used to synchronously limit the new and old strips a11 and a21 before glue-free splicing. Figure 1 , Figure 4 , so that the longitudinal misalignment of the new and old strips a11 and a21 in the splicing section is controlled within the range of ±0.5mm;

[0014] The common ends of the first limiting roller 31 and the second limiting roller 32 are connected to the corresponding pulleys through the corresponding seat bearings 38, and the two pulleys are connected through the transmission belt 37 to complete the transmission. The second limiting roller 32 is connected to the rotary power machine 36, so that the first and second limiting rollers 31 and 32 are rotated through the transmission belt 37 and the pulley under the drive of the rotary power machine 36; an axial adjustment mechanism is provided on the first limiting roller 31 and the second limiting roller 32, and the axial adjustment mechanism includes spiral grooves 3 with opposite spiral directions respectively provided on the roller surfaces of the first and second limiting rollers 31 and 32 at both ends. 3, the limiting rings 34 are respectively sleeved on both ends of the first and second limiting rollers 31 and 32, and a slider 341 is provided on the inner circumferential wall of each limiting ring 34, and the slider 341 is placed in the corresponding spiral groove 33, so that when the first and second limiting rollers 31 and 32 rotate with the rotating power machine 36, the two limiting rings 34 on the first and second limiting rollers 31 and 32 will move synchronously along the corresponding first and second limiting rollers 31 and 32 under the cooperation of the slider 341 and the corresponding spiral groove 33, so as to adjust the distance between the two limiting rings 34 and adapt to the limiting of different strips, such as Figure 1 , so that the new and old strips a11 and a21 are both limited in the two limiting rings 34 to meet the limiting requirements of strips of different widths; a positioning mechanism is set on the first limiting roller 31 and the second limiting roller 32, and the positioning mechanism includes two positioning rods 35 respectively screwed on the belt seat bearing 38 connecting the first and second limiting rollers 31 and 32, and the two positioning rods 35 are respectively clamped in the grooves 342 of the outer circle of the corresponding limiting ring 34, and positioning blocks 39 are sleeved on the two positioning rods 35, so that when the limiting rings 34 on the first and second limiting rollers 31 and 32 are adjusted into place, the two positioning rods 35 with positioning blocks 39 thereon are screwed on the belt seat bearing 38 and clamped in the grooves 342 of the outer circle of the corresponding limiting ring 34, so that the positioning blocks 39 limit the movement of the limiting ring 34, thereby completing the positioning of the limiting ring 34, so that the limiting ring 34 no longer moves.

[0015] Figure 4 An example of the application of the limiting device for strip deviation correction of the present invention in the production of cigarette filter rods is given, wherein: a1 is a new strip roll placed on a rotating shaft, a2 is an old strip roll placed on a rotating shaft, 2 is a deviation correction device, 3 is the limiting device for strip deviation correction of the present invention, and 4 is a splicing device for the new and old strips a11 and a21.

[0016] The above description is only a specific example of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the principle of the present invention should be within the protection scope of the present invention.

Claims

1. A limiting device for strip deviation correction, comprising first and second limiting rollers arranged in parallel, characterized in that The first and second limiting rollers are provided with an axial adjustment mechanism, which includes spiral grooves with opposite spiral directions respectively arranged on the roller surfaces at both ends of the first and second limiting rollers, and limiting rings respectively sleeved on both ends of the first and second limiting rollers, and a slider is provided on the inner circular wall of each limiting ring, and the slider is placed in the corresponding spiral groove; A positioning mechanism is arranged on the first and second limiting rollers, and the positioning mechanism comprises two positioning rods respectively screwed on the seat bearings connected to the first and second limiting rollers, and the two positioning rods are respectively clamped in the grooves of the outer circle of the corresponding limiting ring, and positioning blocks are sleeved on the two positioning rods.

2. The strip deviation correction limiting device according to claim 1 is characterized in that The common ends of the first and second limiting rollers are respectively connected to the corresponding transmission wheels through the corresponding seat bearings, and the two transmission wheels are connected through a transmission mechanism belt. The second limiting roller is connected to the rotary power machine so that the first and second limiting rollers can be rotated through the transmission belt and pulley under the drive of the rotary power machine.

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