CN219314093U

CN219314093U - Unreeling roller capable of carrying out slitting operation by utilizing rewinder

Info

Publication number: CN219314093U
Application number: CN202222918683.1U
Authority: CN
Inventors: 金迪; 孙位冬; 甘雨生; 方仲明; 李小平; 杨娅婷; 王昌明; 叶秋花
Original assignee: HANGZHOU HUAWANG NEW MATERIAL TECHNOLOGY CO LTD
Current assignee: HANGZHOU HUAWANG NEW MATERIAL TECHNOLOGY CO LTD
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-07-07
Anticipated expiration: 2032-11-01

Abstract

The present utility model relates to a fixture. The unreeling roller can utilize the rewinding machine to conduct slitting operation, so that the rewinding machine can also have the slitting function on finished paper rolls on the premise of completing the original rewinding function, the requirements of users can be met in time, and meanwhile equipment cost investment can be saved. The technical scheme is that an available rewinding machine carries out the unreeling roller of cutting operation, its characterized in that: the unreeling roller further comprises two jacks which are positioned on the circumferential surface of the unreeling roller through threads so as to position a finished paper roll sleeved on the unreeling shaft; the screw thread comprises a positive screw thread and a reverse screw thread which are manufactured on the circumferential surface of the unreeling shaft and are spaced at intervals, and an internal screw thread which is respectively manufactured on the two plugs and can be matched with the positive screw thread and the reverse screw thread.

Description

Unreeling roller capable of carrying out slitting operation by utilizing rewinder

Technical Field

The utility model relates to a fixing device, in particular to an unreeling roller capable of carrying out slitting operation by using a rewinder.

Background

The base paper produced by the paper industry is typically supplied to downstream customers in roll form (i.e., rolls 9 of paper, formed into cylinders from a strip of paper continuously wound around a core tube). Because the paper roll size specification required by customers is increased, sometimes the situation that the specification of a goods source is not matched with the specification is generated, namely, products which are required to be shipped by customers are not provided with corresponding specification sizes, and a paper machine just produces products with larger difference in characteristics and cannot be timely changed; at this time, the finished paper rolls with the same type and large specification and size processed by the rewinding machine are changed into small specification and size paper rolls required by customers for emergency delivery. Instead of cutting the finished paper, a special slitting machine is usually required (a rewinder cannot usually re-slit the rewound finished paper roll), which requires additional equipment cost.

CN110040548 discloses a rewinder comprising a reel assembly and a tape-sticking and cutting assembly. The paper winding assembly comprises a paper winding drum, and the surface of the paper winding drum receives paper tapes to be rewound through rotation; the adhesive tape pasting and cutting assembly forms a paper tail for sealing the tail of the finished product roll and a paper head for being fixed on the paper core tube, so that the working efficiency of the rewinder can be improved. But the rewinder cannot cut the product after being processed by the rewinder again.

Disclosure of Invention

The utility model aims to overcome the defects of the background technology, and provides the unreeling roller capable of carrying out slitting operation by using the rewinding machine, so that the rewinding machine can also have the slitting function on a finished paper roll on the premise of completing the original rewinding function, the requirements of users can be met in time, and meanwhile, the equipment cost investment can be saved.

The technical scheme provided by the utility model is as follows:

an unreeling roller capable of carrying out slitting operation by utilizing a rewinder comprises an unreeling shaft which can be inserted into a paper roll to support the paper roll, and two bearing seat assemblies for supporting the unreeling shaft and positioning the unreeling shaft on a frame of the rewinder; the method is characterized in that: the unreeling roller further comprises two jacks which are positioned on the circumferential surface of the unreeling roller through threads so as to position a finished paper roll sleeved on the unreeling shaft; the screw thread comprises a positive screw thread and a reverse screw thread which are manufactured on the circumferential surface of the unreeling shaft and are spaced at intervals, and an internal screw thread which is respectively manufactured on the two plugs and can be matched with the positive screw thread and the reverse screw thread.

The diameter of the matching part of the unreeling shaft and the bearing seat component is smaller than the diameter of the threaded part, so that a step matched with the bearing seat component is formed, and the axial limit of the unreeling shaft is realized.

The contact surface of the plug and the finished paper roll is conical.

The beneficial effects of the utility model are as follows: by adopting the utility model, the rewinder can also cut the finished paper roll on the premise of completing the original rewinder function, thereby not only meeting different requirements of customers in time, but also expanding the function of the rewinder and saving equipment investment; the utility model has convenient manufacture and low cost investment; is popular with enterprises.

Drawings

Fig. 1 is a schematic diagram of the front view structure of the present utility model.

Fig. 2 is a schematic view of the structure of fig. 1 with one end of the bearing housing and plug removed.

Fig. 3 is a schematic view of the bearing housing of fig. 2 removed.

Fig. 4 is an enlarged schematic view of the plug removed in fig. 2.

Fig. 5 is a schematic view of the spline shaft in fig. 1 from the front (left view in fig. 1).

Figure 6 is a schematic view of the structure of the present utility model after the roll of paper is mounted.

Figure 7 is a schematic cross-sectional view of the present utility model after installation of a roll of paper.

Fig. 8 is a schematic diagram showing a front view of a paper roll of the original rewinder.

Detailed Description

Further description of embodiments is provided below in connection with the accompanying drawings.

The main function of the slitting machine is to slit a large-reel finished product parent roll into products with different widths, and the slitting machine is provided with a slitting tool, a winding component and an unwinding component, so that the slitting machine is suitable for slitting narrow bands of various thin coiled materials.

The rewinding machine has the functions of sequentially rewinding the raw paper rolls produced by the paper machine, and delivering finished paper rolls. Because the original paper roll is softer, the inside of the original paper roll may be damaged or broken, the edges of the two sides of the original paper roll are not neat, and the width of the paper web is not equal, so the original paper roll cannot be directly used for paper processing or printing machines; the finished paper roll with certain specification and certain tightness is rolled up on the paper core by trimming, cutting and jointing through a rewinder before leaving the factory. Therefore, the rewinder is also generally provided with a slitting tool and a winding and unwinding assembly.

In the unreeling component of the splitting machine, the diameter of the adopted reeling roller is smaller, and the reeling roller can be directly inserted into the paper core of the finished product paper roll after rewinding (the inner diameter of the paper core of the paper roll is below 5 inches) and then fixed with the paper core; the unreeling component of the rewinder needs to reel the raw paper roll with larger diameter and weight, so the adopted reeling roller is a rubber roller 8 with the diameter of more than 12 inches, and obviously the unreeling component cannot be matched with the paper core of the finished paper roll in an inserting way. Because of this, the conventional rewinder cannot perform the slitting operation on the finished paper roll after rewinding.

The original unreeling roller of the rewinder (shown in figure 8) is characterized in that a reeling roller 8 is fixed in the middle of a unreeling shaft 6, and two ends of the unreeling shaft are respectively sleeved with bearing seat assemblies; the bearing seat assembly comprises a bearing seat 3 and bearing seat end covers 3 which are positioned at the left side and the right side of the bearing seat and are connected with the bearing seat into a whole. Correspondingly, a fixing structure (a lever component driven by a cylinder; a conventional structure is omitted from the figure) matched with the bearing seat component is arranged on the frame of the rewinder. The left end and the right end of the unreeling shaft are respectively provided with a key groove 7, and the key shaft sleeve 1 can be connected through keys (see figure 5; the spline shaft sleeve can be selectively arranged at the left end or the right end of the unreeling shaft according to the requirement); the spline shaft is used for being connected with a tension mechanism so as to keep tension balance between the unreeling shaft and the reeling-in roller. The above is the structure of the related parts of the existing rewinder.

The improvement of the utility model is that after the roll paper roll in the middle of the unreeling shaft is removed, a thread 4 surrounding the circumferential surface is manufactured, the thread comprises a positive thread and a negative thread (the length of the positive thread and the negative thread is longer than that of a paper core tube 9-1 in a finished paper roll 9 to meet the use requirement of various paper rolls) with two intervals, and a plug 5 (the internal thread in the plug, the positive thread and the negative thread form threads) which is matched with the positive thread and the negative thread is arranged for jacking the finished paper roll (the contact surface of the plug matched with the paper core tube is conical). In addition, the diameter between the matching parts of the unreeling shaft and the bearing seat assembly is smaller than that of the threaded part, so that a step 4-1 is formed at the two ends of the unreeling shaft respectively; the two bearing seat assemblies are respectively matched with the two steps one by one, so that the axial displacement of the unreeling shaft can be limited, and one bearing seat assembly can be conveniently separated from the unreeling shaft.

The application method of the utility model is as follows: when the utility model is used, firstly, the bearing seat and the plug at one end of the unreeling shaft are removed (the structure of the rest parts is shown in fig. 2, the removed bearing seat and plug are respectively shown in fig. 3 and 4), then the unreeling shaft at the end is inserted through the core tube 9-1 of the finished paper roll 9, the removed plug is screwed in, the two plugs are matched with each other to tightly prop the finished paper roll on the unreeling shaft, and then the removed bearing seat component is sleeved (see fig. 5); finally, the unreeling shaft and the finished paper roll can be lifted onto the frame of the rewinder together through a crane (the unreeling shaft is required to be kept in a horizontal state in the lifting process). Because the external structure of the bearing seat assembly is the same as that of the original bearing seat assembly of the rewinder, the utility model can realize reliable positioning on the rewinder, and can cut the paper unreeled from the finished paper roll by utilizing the original cutter of the rewinder.

Because the number of the paper winding rollers arranged on the rewinding machine is multiple, only a small number of the paper winding rollers are needed to be modified, so that the rewinding machine has the functions of rewinding and slitting paper.

Claims

1. An unreeling roller capable of carrying out slitting operation by utilizing a rewinder comprises an unreeling shaft (6) which can be inserted into a paper roll (9) to support the paper roll and two bearing seat assemblies for supporting the unreeling shaft and positioning the unreeling shaft on a frame of the rewinder; the method is characterized in that: the unreeling roller further comprises two jacks (5) which are positioned on the circumferential surface of the unreeling roller through threads (4) so as to position a finished paper roll sleeved on the unreeling shaft; the screw thread comprises a positive screw thread and a reverse screw thread which are manufactured on the circumferential surface of the unreeling shaft and are spaced at intervals, and an internal screw thread which is respectively manufactured on the two plugs and can be matched with the positive screw thread and the reverse screw thread.

2. The unwind roll for slitting operations utilizing a rewinder according to claim 1, wherein: the diameter of the part of the unreeling shaft matched with the bearing seat component is smaller than that of the threaded part, so that a step (4-1) matched with the bearing seat component is formed, and the axial limit of the unreeling shaft is realized.

3. Unreeling roller capable of carrying out slitting operation by utilizing rewinding machine according to claim 2, characterized in that: the contact surface of the plug and the finished paper roll is conical.