Core tube transfer mechanism of a rewinder

Abstract

The core tube transfer mechanism of the rewinding machine comprises a conveyor belt for translating the core tube to the winding channel entrance, a rotating member is arranged in the path of the core tube conveyed by the conveyor belt, the rotating member is provided with a groove, the core tube is conveyed by the conveyor belt into the groove, the rotating member rotates the core tube entering the groove, so that the core tube goes through a lifting and falling process of first lifting away from the conveyor belt and then falling back to the conveyor belt, in the lifting and falling process, the core tube deflects around its axis with the rotation of the rotating member, so that the glue originally located at the bottom of the circumferential surface of the core tube is deflected. The core tube transfer mechanism has the advantages that the glue on the core tube cannot contact the arc-shaped plate below the rewinding roller, and the problem of the arc-shaped plate being contaminated by the glue is solved.

Description

Technical Field

[0001] This utility model relates to a rewinding machine for producing paper rolls, and more particularly to a core tube transfer mechanism in the rewinding machine for moving a core tube dipped in glue to the starting channel. Background Technology

[0002] The core tube transfer mechanism of the rewinder is responsible for moving the glue-soaked core tube to the rewinder's starting channel. The rewinder's starting channel consists of a rewinding roller and an arc-shaped plate located below the rewinding roller. Since the rewinder's gluing mechanism typically applies glue to the bottom of the core tube's circumference, when the glue-soaked core tube moves to the entrance of the starting channel, the glue at the bottom of the core tube will stain the arc-shaped plate below the rewinding roller. Utility Model Content

[0003] The purpose of this invention is to provide a core tube transfer mechanism for a rewinding machine to solve the problem of the arc plate of the starting channel being contaminated with glue.

[0004] This invention is implemented as follows: The core tube transfer mechanism of the rewinding machine includes a conveyor belt that moves the core tube dipped in glue to the entrance of the starting channel. Specifically, a rotating component is provided in the path of the conveyor belt transporting the core tube. The axis of rotation of the rotating component is lower than the support surface of the conveyor belt, and the top of the rotating component is higher than the support surface of the conveyor belt. The rotating component is provided with a groove. When the conveyor belt transports the core tube to the position of the rotating component, the core tube just enters the groove. The rotating component lifts the core tube that has entered the groove and rotates it, causing the core tube to go through a lifting process of first rising and leaving the conveyor belt and then falling back to the conveyor belt. During this lifting process, the core tube deflects around its own axis as the rotating component rotates.

[0005] In the preferred embodiment, the conveyor belt continues to move as the rotating member supports the core tube and rotates. At the instant the core tube falls back and contacts the conveyor belt, the rotational speed of the rotating member is such that the component of the core tube's speed parallel to the direction of travel of the conveyor belt is equal to the speed of travel of the conveyor belt.

[0006] The advantage of this invention is that the rotating component causes the core tube to deflect at a certain angle before reaching the winding channel, so that the glue on the core tube is deviated from the bottom of the circumferential surface of the core tube. Therefore, when the core tube moves to the entrance of the winding channel, the glue on the core tube will not come into contact with the arc plate below the rewinding roller, thus solving the problem of the arc plate being contaminated by glue. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the core tube entering the groove on the rotating component; Figure 3 This is a schematic diagram showing the core tube rotating while being supported by the rotating component. Figure 4 This is a schematic diagram showing the core tube moving horizontally to the entrance of the winding channel. Detailed Implementation

[0008] To facilitate understanding of this utility model, a more comprehensive description is provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0009] See Figure 1 The core tube transfer mechanism of the rewinding machine includes a conveyor belt 1 for transporting the core tube. The core tube 2 is placed flat on the conveyor belt 1. The conveyor belt 1 can be, but is not limited to, a chain or belt. The bottom of the circumferential surface of the core tube 2 has been coated with glue 10 by the glue application mechanism of the rewinding machine. The conveyor belt 1 moves the glue-coated core tube 2 horizontally to the entrance of the rewinding channel 3 of the rewinding machine. The rewinding channel 3 is composed of a rewinding roller 4 and an arc-shaped plate 5 located below the rewinding roller 4. A pusher 6 fixed on the conveyor belt 1 serves to push the core tube 2 to move synchronously with the conveyor belt 1. A rotating component 7 is provided in the path of the conveyor belt 1 transporting the core tube. The shaft 8 of the rotating component 7 is lower than the support surface of the conveyor belt 1, and the top of the rotating component 7 is higher than the support surface of the conveyor belt 1. The rotating component 7 has a groove 9 facing the core tube. Figure 2 As shown, when the conveyor belt 1 transports the core tube 2 to the position of the rotating component 7, the core tube 2 just enters the groove 9. After the core tube 2 enters the groove 9, the rotating component 7 immediately lifts the core tube 2 and rotates it, causing the core tube 2 to move along... Figure 3 The trajectory shown by the dotted line in the diagram involves a lifting and lowering process, first rising to detach from conveyor belt 1 and then falling back onto conveyor belt 1. During this lifting and lowering process, the core tube 2 deflects around its own axis as the rotating component 7 rotates, causing the glue 10, originally located at the bottom of the circumference of the core tube, to deflect to... Figure 3 The position shown. In reality, the angle of deflection of glue 10 is the angle through which the rotating part 7 supports the core tube 2, that is, the angle through which the rotating part 7 rotates from... Figure 2 Rotate to the position shown Figure 3 The angle rotated to the position shown. It should be noted that... Figure 3 The pusher component 6, fixed to the conveyor belt, is omitted to clearly show the trajectory of the core tube, indicated by the dashed line in the diagram. In reality, the core tube 2 falls back and contacts the conveyor belt 1 at the instant... Figure 3 The instant shown, Figure 2 The pusher 6 shown reaches a position just next to the core tube 2. After the core tube 2 falls back onto the conveyor belt 1, the conveyor belt 1 continues to transport the core tube 2 until the core tube 2 is as shown. Figure 4The tube is moved to the entrance of the winding channel 3. Since the adhesive 10 on the core tube 2 is not at the bottom of the core tube's circumference, the adhesive 10 will not contact the curved plate 5, thus preventing the curved plate 5 from being contaminated by the adhesive. Following... Figure 4 Afterwards, the core tube 2 rolls along the winding channel 3. When the core tube 2 presses against the rewinding roller 4, the paper 12 of the paper roll 11 being rewound will be pulled apart due to the pressure from the core tube 2, and the paper roll 11 will leave the rewinder. The broken paper is wrapped around the core tube 2, and the winding process of a new paper roll begins. The glue 10 on the core tube 2 sticks to the paper.

[0010] During the rotation of the core tube supported by the rotating component 7, the conveyor belt 1 can pause its movement. Once the core tube falls back onto the conveyor belt 1, the conveyor belt 1 resumes its movement. However, to avoid the adverse consequences of frequent start-stop cycles, as the optimal implementation, the conveyor belt 1 continues to move while the rotating component 7 supports the core tube 2, and the rotation speed of the rotating component 7 meets the following condition: at the instant the core tube 2 falls back and contacts the conveyor belt 1, that is, at... Figure 3 At the instant shown, the component velocity V of the core tube 2 in the direction parallel to the conveyor belt 1 is equal to the speed of the conveyor belt 1. This prevents the core tube 2 from rolling back onto the conveyor belt 1 due to the speed difference. It should be noted that this "equal" is not strictly equal in a mathematical sense. As long as the speed difference between the component velocity of the core tube 2 and the speed of the conveyor belt 1 at the instant is insufficient to cause the core tube 2 to roll back onto the conveyor belt 1, the component velocity of the core tube 2 is considered equal to the speed of the conveyor belt 1.

[0011] The mechanism that drives the rotating part 7 to rotate can be a motor, cylinder, etc. The rotating part 7 can rotate either by oscillating back and forth around the rotating shaft 8 or by continuous rotation. There can be more than one groove 9 on the rotating part 7. For example, the rotating part is disc-shaped, and multiple grooves are arranged along the circumference of the rotating part. The rotating part rotates in a single direction, and each groove takes turns receiving the core tube.

[0012] It should be noted that the attached drawing only schematically shows one rotating component 7. In reality, since the core tube 2 has a certain length, at least two rotating components 7 are arranged at intervals in a direction perpendicular to the plane of the drawing, and the core tube 2 is supported and rotated by at least two rotating components 7 together.

[0013] 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 core tube transfer mechanism for a rewinding machine, comprising a conveyor belt which translates a glue-dipped core tube to the entrance of a winding tunnel, characterized in that: A rotating component is provided in the path of the conveyor belt transporting the core tube. The axis of rotation of the rotating component is lower than the support surface of the conveyor belt, and the top of the rotating component is higher than the support surface of the conveyor belt. The rotating component has a groove. When the conveyor belt transports the core tube to the position of the rotating component, the core tube just enters the groove. The rotating component lifts the core tube that has entered the groove and rotates it, causing the core tube to go through a lifting process of first rising and leaving the conveyor belt and then falling back to the conveyor belt. During this lifting process, the core tube deflects around its own axis as the rotating component rotates.

2. The core-bar transfer mechanism of the rewinding machine according to claim 1, characterized in that; The conveyor belt continues to move as the rotating member supports the core tube and rotates. At the instant the core tube falls back and contacts the conveyor belt, the rotational speed of the rotating member makes the component of the core tube's speed parallel to the direction of travel of the conveyor belt equal to the speed of travel of the conveyor belt.

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