Diameter expanding shaft for rolling lining paper

Abstract

The diameter expanding shaft comprises a cylinder body, a plurality of supporting blocks and a driving mechanism, the cylinder body is installed on a winding machine, the supporting blocks are installed on the side portion of the cylinder body at equal intervals, and the driving mechanism is installed on the cylinder body and matched with the supporting blocks; when paper rolling is conducted, the driving mechanism is suitable for driving the supporting block to be away from the barrel to be in an unfolded state. After paper rolling is completed, the driving mechanism is suitable for driving the supporting block to get close to and be attached to the barrel to be in a storage state. The device has the beneficial effects that by arranging the multiple supporting blocks and the driving mechanism, the driving mechanism can drive the supporting blocks to be away from or close to the barrel, so that the diameter of the barrel can be changed, and then lining paper can be wound and taken; and a disposable round paper tube is not needed, so that the cost of rolling the lining paper is greatly saved, and the production efficiency is also improved.

Description

Technical Field

[0001] The present application relates to the technical field of winding machines, and in particular to an expanding shaft for winding liner paper. Background Art

[0002] Strip steel is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of industrialized production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width and its length varies slightly according to the size of each roll.

[0003] During the production of strip steel, lining paper is needed for wrapping in order to prevent the strip steel layers from shifting and scratching the surface. When in use, the lining paper needs to be rolled up for easy recycling. The lining paper winder is used to collect the lining paper on the surface of the strip steel after unwinding. The existing winding methods are: Figure 1 As shown, a hard round paper tube is sleeved on the core shaft of the winding machine, and then the liner paper is wound by driving the round paper tube to rotate. However, there is a disadvantage that the friction between the wound liner paper and the round paper tube is very large, which makes it difficult to pull the round paper tube out of the liner paper. Therefore, the round paper tube will be easily damaged during the subsequent processing. In other words, one round paper tube will be wasted for each winding of the liner paper, which will increase the cost of winding the liner paper. Therefore, a diameter expansion shaft for winding the liner paper is proposed to solve the above technical problems. Utility Model Content

[0004] One of the purposes of the present application is to provide a diameter-enlarging shaft for winding up liner paper.

[0005] In order to achieve the above purpose, the technical solution adopted in the present application is: an expanding shaft for winding liner paper, comprising a cylinder, a plurality of support blocks and a driving mechanism, wherein the cylinder is installed on a winding machine, the support blocks are installed at equal distances on the side of the cylinder, and the driving mechanism is installed on the cylinder and cooperates with the support blocks; when winding paper, the driving mechanism is suitable for driving the support blocks away from the cylinder to be in an unfolded state; after the paper winding is completed, the driving mechanism is suitable for driving the support blocks to approach and adhere to the cylinder to be in a stored state.

[0006] Preferably, the inner side of the cylinder has a hollow groove, a retaining ring is rotatably installed on the end of the cylinder, a joint connected to the hollow groove is provided on one side of the retaining ring, the driving mechanism is connected to the joint through a pipeline, and the hollow groove is connected and cooperated with the support block; the driving mechanism is suitable for inputting or extracting pressure medium into the hollow groove, thereby allowing the support block to be expanded or stored.

[0007] Preferably, the support block is an expansion block, and the expansion block is communicated with the hollow groove.

[0008] Preferably, the support block is mounted on the side of the cylinder through a telescopic tube, and the telescopic tube is communicated with the hollow groove.

[0009] Preferably, the driving mechanism comprises a pump body, and the pressure medium is liquid or gas.

[0010] Preferably, the support block is in an arc-shaped structure that fits the cylinder.

[0011] Preferably, the support block is provided with a plurality of grooves along the length direction; when the paper is rolled, the grooves are suitable for increasing the tensioning force on the liner paper; after the paper is rolled, the grooves are suitable for reducing the contact area with the liner paper.

[0012] Preferably, the winder includes a frame, a motor and an inflatable shaft, the inflatable shaft is rotatably mounted on the frame, the motor is mounted on the frame and an output end is connected to the inflatable shaft, and the cylinder is sleeve-mounted on the inflatable shaft.

[0013] Preferably, the mounting end of the cylinder has a chamfered structure.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The utility model is provided with a plurality of support blocks and a driving mechanism, and the driving mechanism can drive the support blocks to move away from or close to the cylinder body, so that the diameter of the cylinder body can be changed, and the lining paper can be rolled up and taken out; that is, there is no need to use a disposable round paper cylinder, which greatly saves the cost of rolling up the lining paper and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the winding structure of the existing lining paper.

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the support block structure of the utility model.

[0019] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the cylinder of the utility model.

[0020] In the figure: 1. Winding machine; 101. Air shaft; 102. Motor; 103. Frame; 2. Retaining ring; 3. Support block; 4. Tank body; 5. Cylinder body; 6. Joint; 7. Hollow groove; 8. Telescopic tube; 9. Chamfering structure. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] One of the preferred embodiments of the present application is as follows: Figures 1 to 4 As shown, a diameter expansion shaft for winding liner paper includes a cylinder 5, a plurality of support blocks 3 and a driving mechanism. Of course, the cylinder 5 is installed on the winding machine 1, the support blocks 3 are installed at equal distances on the side of the cylinder 5, and the driving mechanism is installed on the cylinder 5 and cooperates with the support blocks 3.

[0025] When the lining paper is rolled up, the driving mechanism can drive the support block 3 away from the cylinder 5 to be in an expanded state. It can be understood that the expanded support block 3 is equivalent to expanding the diameter of the cylinder 5, and the lining paper can be rolled up at this time. After the lining paper is rolled up, the support block 3 can be moved close to and attached to the outside of the cylinder 5 by the driving mechanism, so that the support block 3 is in a stored state. It can be understood that the stored support block 3 is equivalent to reducing the diameter of the cylinder 5, and the cylinder 5 is originally rolled up with the expansion, so it is easy to remove the rolled lining paper from the cylinder 5 at this time, and then the next lining paper is rolled up.

[0026] It can be seen that when rolling up the liner paper, there is no need to use a disposable round paper roll, and the liner paper can be rolled up by the cylinder 5 with a variable diameter, which greatly saves the cost of rolling up the liner paper; and there is no need to replace the disposable round paper roll back and forth, which also improves production efficiency. At the same time, since there is no need to purchase additional round paper rolls, it also reduces the waste of resources and meets the concept of environmental protection.

[0027] One of the embodiments of the present application is as follows: Figure 4As shown, a hollow groove 7 is provided in the inner side of the cylinder 5, a retaining ring 2 is rotatably installed at the end of the cylinder 5, a joint 6 connected to the hollow groove 7 is provided on one side of the retaining ring 2, and the driving mechanism is connected to the joint 6 through a pipeline; in this way, when the cylinder 5 is rotated to roll up paper, since the retaining ring 2 and the cylinder 5 are sealed and rotatably connected, the retaining ring 2 will not rotate with it, that is, the pipeline will not be entangled and knotted, and the hollow groove 7 is connected and cooperated with the support block 3.

[0028] When adjusting the cylinder 5 , the driving mechanism can input or extract pressure medium into the hollow groove 7 through the pipeline, thereby expanding or retracting the support block 3 to increase or decrease the diameter of the cylinder 5 .

[0029] As a further description of the above technical solution: the supporting block 3 has various structural forms, including but not limited to the following two forms:

[0030] Structure 1 (not shown): The support block 3 is an expansion block, which is connected to the hollow groove 7. Specifically, the expansion block can be made of rubber material, and its interior is a hollow structure and is connected to the hollow groove 7. Therefore, when the driving mechanism inputs the pressure medium, the expansion block will expand under the pressure, thereby increasing the diameter of the cylinder 5; when the driving mechanism extracts the pressure medium, the expansion block will restore the deformation, thereby reducing the diameter of the cylinder 5.

[0031] Structure 2 (such as Figure 4 As shown): the support block 3 is installed on the side of the cylinder 5 through the telescopic tube 8, and the telescopic tube 8 is connected to the hollow groove 7.

[0032] It can be understood that when the driving mechanism inputs pressure medium, the telescopic tube 8 will extend under the action of pressure, that is, the support block 3 moves away from the cylinder 5, so that the diameter of the cylinder 5 increases; when the driving mechanism extracts pressure medium, the telescopic tube 8 will shorten under the action of the extraction force, that is, the support block 3 moves close to the cylinder 5, so that the diameter of the cylinder 5 decreases.

[0033] It should be noted that both structures can meet actual needs, and those skilled in the art can choose according to actual conditions. The number of support blocks 3 is not specifically limited here, for example, six or eight support blocks 3 can be used.

[0034] In one embodiment of the present application, the driving mechanism includes a pump body. Of course, the pump body can be a water pump or an air pump. When a water pump is used, the pressure medium is liquid (water); when an air pump is used, the pressure medium is gas (air).

[0035] Of course, the pump body here is preferably an air pump, because gas is easy to collect; if liquid is used, it is also necessary to equip it with components such as a water tank, which makes the structure complicated and the maintenance and operation costs will also increase.

[0036] In this embodiment, for the above-mentioned structure 2, the support block 3 preferably adopts an arc-shaped structure that fits with the cylinder 5. It can be understood that when the support block 3 is contracted, the support block 3 can fit better with the cylinder 5, thereby improving the stability and sealing of the structure. The use of the arc-shaped structure can also reduce the contact area between the support block 3 and the cylinder 5, reduce friction, and reduce the wear of the structure. At the same time, by selecting an arc-shaped structure that fits with the cylinder 5, it can be ensured that there is no excessive deformation and stress concentration when the support block 3 contracts, thereby extending the service life of the support block 3 and improving the reliability and durability of the entire structure.

[0037] Furthermore, the support block 3 is provided with a plurality of grooves 4 along the length direction; when the liner paper is rolled up, the grooves 4 can increase the tension on the liner paper, thereby enabling the liner paper to be stably rolled up on the support block 3 outside the cylinder 5. After the paper is rolled up, the grooves 4 can reduce the contact area with the liner paper, thereby enabling the shrunken cylinder 5 to be more conveniently pulled out from the rolled up liner paper.

[0038] In this embodiment, Figure 2 As shown, the winder 1 includes a frame 103, a motor 102 and an inflatable shaft 101, the inflatable shaft 101 is rotatably mounted on the frame 103, the motor 102 is mounted on the frame 103 and the output end is connected to the inflatable shaft 101, and the cylinder 5 is sleeved and mounted on the inflatable shaft 101.

[0039] In order to further understand the winding of the backing paper, the working principle is described below:

[0040] First, sleeve the cylinder 5 onto the outside of the inflatable shaft 101, and inflate the inflatable shaft 101 with high pressure to limit and fix the cylinder 5, and then fill the cylinder 5 with high pressure medium through the driving mechanism, so that the support block 3 is away from the cylinder 5 and in an unfolded state, that is, the diameter of the cylinder 5 is expanded, and one end of the lining paper is connected to one of the support blocks 3, and the motor 102 is started, and the motor 102 drives the cylinder 5 to rewind the lining paper. After the lining paper is rewound, the medium in the cylinder 5 is extracted through the driving mechanism, so that the support block 3 is close to the cylinder 5 and in a retracted state, that is, the support block 3 is away from the rewound lining paper, and then loses its supporting function for the lining paper. At this time, the rewound lining paper is pulled out from the cylinder 5, and then the next roll of lining paper can be rewound.

[0041] It should be noted that the pneumatic shaft 101 is common knowledge known to those skilled in the art, and the cylinder 5 can be easily installed and disassembled through the pneumatic shaft 101, so as to facilitate subsequent maintenance and repair.

[0042] Of course, in order to make it easier for the cylinder 5 to be sleeved and installed on the outside of the inflatable shaft 101, as shown in FIG. Figure 4 As shown, the installation end (insertion end) of the cylinder 5 has a chamfered structure 9, so that the cylinder 5 can be more smoothly sleeved on the inflatable shaft 101, avoiding the jamming phenomenon caused by slight deviation.

[0043] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A diameter expansion shaft for winding liner paper, characterized in that: include: A cylinder body, wherein the cylinder body is installed on the winding machine; A plurality of support blocks, the support blocks being installed at equal distances on the sides of the cylinder; as well as A driving mechanism is installed on the cylinder and cooperates with the support block; when rolling paper, the driving mechanism is suitable for driving the support block away from the cylinder to present an unfolded state; after the paper is rolled, the driving mechanism is suitable for driving the support block to approach and adhere to the cylinder to present a stored state.

2. The enlarged diameter shaft for winding up the liner paper according to claim 1, characterized in that: The inner side of the cylinder is provided with a hollow groove, a retaining ring is rotatably installed at the end of the cylinder, a joint connected to the hollow groove is provided on one side of the retaining ring, the driving mechanism is connected to the joint through a pipeline, and the hollow groove is connected and cooperated with the support block; the driving mechanism is suitable for inputting or extracting pressure medium into the hollow groove, thereby allowing the support block to be expanded or stored.

3. The enlarged diameter shaft for winding up the liner paper according to claim 2, characterized in that: The support block is an expansion block, and the expansion block is communicated with the hollow groove.

4. The enlarged diameter shaft for winding up the liner paper according to claim 2, characterized in that: The support block is installed on the side of the cylinder through a telescopic tube, and the telescopic tube is communicated with the hollow groove.

5. The enlarged diameter shaft for winding up liner paper according to any one of claims 2 to 4, characterized in that: The driving mechanism comprises a pump body, and the pressure medium is liquid or gas.

6. The enlarged diameter shaft for winding up the liner paper according to claim 4, characterized in that: The support block is in an arc-shaped structure that fits the cylinder.

7. The enlarged diameter shaft for winding up the liner paper according to claim 6, characterized in that: The support block is provided with a plurality of grooves along the length direction; when the paper is rolled, the grooves are suitable for increasing the tensioning force on the lining paper; after the paper is rolled, the grooves are suitable for reducing the contact area with the lining paper.

8. The enlarged diameter shaft for winding up the liner paper according to claim 1, characterized in that: The winder comprises a frame, a motor and an inflatable shaft. The inflatable shaft is rotatably mounted on the frame. The motor is mounted on the frame and an output end is connected to the inflatable shaft. The cylinder is sleeve-mounted on the inflatable shaft.

9. The enlarged diameter shaft for winding up the liner paper according to claim 8, characterized in that: The mounting end of the cylinder has a chamfered structure.

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