Conical sleeve plugging device for paper roll core tube

Abstract

A conical sleeve insertion and removal device for paper roll core tubes includes a hollow tube with an outer diameter smaller than the inner diameter of the conical sleeve. The hollow tube has a top block that moves radially along its wall. An air bladder is located inside the hollow tube. When the air bladder inflates, the top block presses tightly against the inner wall of the conical sleeve. When the air bladder deflates, the pressure of the top block on the conical sleeve is released. The hollow tube is connected to a first driving mechanism, which drives the hollow tube to translate axially. The advantage of this invention is that the insertion and removal of the conical sleeve from the paper roll core tube can be completed simply by operating the hollow tube through the first driving mechanism, eliminating the need for manual handling of the conical sleeve and significantly reducing worker workload.

Description

Technical Field

[0001] This utility model relates to paper processing equipment, and more particularly to a device in paper processing equipment for inserting or removing a conical sleeve from a paper roll core tube. Background Technology

[0002] Paper processing equipment often uses large paper rolls as its paper supply source. These large rolls are placed on an unwinding rack, and the paper unwinding from them provides the raw paper for the processing equipment. Before placing the large paper roll on the unwinding rack, a conical sleeve needs to be inserted into the end of the core tube, which is then connected to a shaft on the unwinding rack. After unwinding, the conical sleeve must be removed from the core tube. Currently, both inserting and removing the conical sleeve from the core tube are done manually. The conical sleeves used for large paper rolls are very heavy, making manual handling extremely difficult. Utility Model Content

[0003] The purpose of this invention is to provide a conical sleeve insertion and removal device for paper roll core tubes to reduce the workload of workers.

[0004] This invention is implemented as follows: The conical sleeve insertion and removal device for the paper roll core tube includes a hollow tube with an outer diameter smaller than the inner diameter of the conical sleeve. The tube wall of the hollow tube is provided with a top block that moves radially along the hollow tube. An air bladder is provided inside the hollow tube. When the air bladder is inflated, it pushes the top block, causing the top block to press tightly against the inner wall of the conical sleeve. When the air bladder is deflated, it releases the pressure on the top block, causing the top block to release the pressure on the conical sleeve. The hollow tube is connected to a first driving mechanism, which drives the hollow tube to translate axially along the hollow tube.

[0005] As a further improvement, this utility model also includes a second drive mechanism to drive the hollow tube to rise and fall.

[0006] The advantage of this invention is that the operation of inserting the cone sleeve into the paper roll core tube and pulling the cone sleeve out of the paper roll core tube can be completed simply by operating the hollow tube through the first drive mechanism, without the need for manual handling of the cone sleeve, which greatly reduces the workload of workers. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0008] Figure 2 This is a schematic diagram showing a hollow tube inserted inside a paper roll core tube with the air bladder in an inflated state.

[0009] Figure 3 This is a schematic diagram showing a hollow tube inserted inside a paper roll core tube with the air bladder in a contracted state.

[0010] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model. Detailed Implementation

[0011] To facilitate understanding of this utility model, the following embodiments provide a more comprehensive description of the utility model. The embodiments illustrate implementation methods of the utility model. However, the utility model can be implemented in many different forms and is not limited to the implementation methods described in the embodiments.

[0012] It should be noted that the terms "first" and "second" in this utility model are only used to distinguish names and do not represent specific quantities or order.

[0013] See also Figure 1 , Figure 2 The conical sleeve insertion and removal device for the paper roll core tube includes a hollow tube 1, the outer diameter of which is smaller than the inner diameter of the conical sleeve 2. The hollow tube 1 has a through hole 3 in its wall, and a top block 4 that can move radially along the hollow tube 1 is placed inside the through hole 3. The end of the top block 4 located inside the hollow tube is larger than the diameter of the through hole 3, ensuring that the top block 4 will not fall out of the through hole 3. Multiple top blocks 4 with the same structure can be arranged along the wall of the hollow tube 1. An air bladder 5 is provided inside the hollow tube 1. The air bladder 5 is connected to an inflation / deflation device via a conduit 6. The inflation / deflation device inflates and deflates the air bladder 5. The hollow tube 1 is connected to a first drive mechanism 7, which drives the hollow tube 1 to translate axially along the hollow tube 1. The first drive mechanism 7 can be any mechanism powered by a cylinder, hydraulic cylinder, or motor. In the illustrated embodiment, the first drive mechanism 7 is a cylinder connected to the hollow tube 1.

[0014] When airbag 5 inflates, as Figure 2 As shown, the airbag 5 pushes against the top block 4, causing the top block 4 to press tightly against the inner wall of the conical sleeve 2, thus connecting the hollow tube 1 and the conical sleeve 2 together. At this time, the first drive mechanism 7 can move the hollow tube 1 along the axial direction of the hollow tube 1, that is, along the axial direction of the paper roll core tube 8, driving the hollow tube 1 to move outward towards the port of the paper roll core tube 8 until the conical sleeve 2 is pulled out of the paper roll core tube 8. After the conical sleeve 2 is pulled out of the paper roll core tube 8, the airbag 5 remains inflated, keeping the hollow tube 1 and the conical sleeve 2 connected, in preparation for re-inserting the conical sleeve 2 into the paper roll core tube. It should be noted that... Figure 2 The paper roll core tube 8 is the core tube of the paper roll that has been unwound, so there is no paper wrapped around the paper roll core tube 8.

[0015] When the conical sleeve 2 needs to be inserted into the paper core tube, the first drive mechanism 7 drives the hollow tube 1 to translate axially along the hollow tube 1 until the conical sleeve 2 is inserted into the end of the paper core tube 8. After the conical sleeve 2 is inserted into the paper core tube, as... Figure 3As shown, the airbag 5 deflates and contracts, releasing the pressure on the top block 4. Consequently, the pressure exerted by the top block 4 on the conical sleeve 2 also eases. At this point, the first drive mechanism 7 can move the hollow tube 1 axially until it is pulled out of the conical sleeve 2, leaving the conical sleeve 2 inside the paper roll core tube 8. This completes the insertion of the conical sleeve 2 into the paper roll core tube 8. It should be noted that... Figure 3 The paper roll core tube 8 is the core tube of the paper roll that has not yet started to unwind, so paper material 9 is wound on the paper roll core tube 8.

[0016] As a further improvement, this utility model may also be equipped with a second drive mechanism to raise and lower the hollow tube. See also Figure 4 In this embodiment Figure 1 Based on the existing design, a second driving mechanism is added. This second driving mechanism mainly consists of a slider 10, a guide rod 11, a synchronous belt 12, a synchronous pulley 13, and a motor 14. The motor 14 drives the synchronous belt 12 to reciprocate up and down via the synchronous pulley 13, and the synchronous belt 12 pulls the slider 10 to slide up and down along the guide rod 11. A first driving mechanism 7 is mounted on the slider 10. The first driving mechanism 7 and the hollow tube 1 connected to it rise and fall together with the slider 10. For large paper rolls of different diameters, the height of the hollow tube 1 from the ground can be adjusted using the second driving mechanism to align the hollow tube 1 precisely with the core tube port of the large paper roll placed horizontally on the ground or a trolley, thus facilitating the application of this invention to large paper rolls of different diameters. The specific structure of the second driving mechanism is not limited to the illustrated embodiment; various existing lifting mechanisms can be selected.

[0017] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of this patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model patent should be determined by the appended claims.

Claims

1. A tapered sleeve insertion and extraction device for paper roll core tube, characterized in that: It includes a hollow tube with an outer diameter smaller than the inner diameter of the conical sleeve. The tube wall has a top block that moves radially along the hollow tube. An air bladder is installed inside the hollow tube. When the air bladder is inflated, it pushes the top block, causing the top block to press tightly against the inner wall of the conical sleeve. When the air bladder deflates, it releases the pressure on the top block, causing the top block to release its pressure on the conical sleeve. The hollow tube is connected to a first drive mechanism, which drives the hollow tube to translate axially along the hollow tube.

2. The tapered sleeve insertion and removal device for paper roll core tube as described in claim 1, characterized in that: A second drive mechanism is provided to raise and lower the hollow tube.

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