Core tube gluing steering mechanism of rewinding machine

Abstract

A core tube gluing steering mechanism of a rewinding machine comprises a gluing part used for applying glue to local positions of core tubes in the circumferential direction and a conveying belt used for conveying the core tubes dipped with the glue to move towards paper, and the conveying belt is connected with a pushing and blocking piece walking along with the conveying belt. A blocking piece blocking the front portion of the core tube is arranged in the path, conveying the core tube, of the conveying belt, the blocking piece is connected with a lifting mechanism, when the core tube conveyed by the conveying belt is clamped between the blocking piece and the pushing and blocking piece, the lifting mechanism drives the blocking piece to move downwards to the position avoiding the core tube, and in the downward moving process of the blocking piece, the core tube is blocked. The blocking piece rubs the core pipe to enable the core pipe to rotate around the axis of the core pipe. The utility model has the advantages that the azimuth angle of the glue in the circumferential direction of the core tube can be adjusted with a simple structure and lower cost without adopting a high-cost servo motor to drive the core tube to rotate.

Description

Technical Field

[0001] The utility model relates to paper roll production equipment, in particular to a rewinding machine for rewinding paper materials onto a core tube. Background Art

[0002] When the rewinder rewinds the paper onto a core tube, it first dips glue at a local position in the circumferential direction of the core tube, and then moves the core tube to a position in contact with the paper so that the paper sticks to the core tube. In order to make the end of the paper have a smaller distance from the glue on the core tube when the paper contacts the glue on the core tube, the core tube needs to be rotated around its own axis by a certain angle after the core tube is dipped in glue, so as to adjust the azimuth of the glue in the circumferential direction of the core tube, and ensure that when the paper contacts the glue on the core tube, the end of the paper has just a smaller distance from the glue on the core tube. In order to realize the rotation of the core tube around its own axis, the existing rewinder adopts a method in which a servo motor drives the upper and lower pressure rollers to clamp the core tube for rotation. This control method is complex in structure and has high cost. Utility Model Content

[0003] The utility model aims to provide a core tube gluing steering mechanism of a rewinding machine, which can adjust the azimuth angle of glue in the circumferential direction of the core tube with a simple structure and low cost.

[0004] The utility model is implemented as follows: the core tube gluing and steering mechanism of the rewinding machine includes a gluing part for applying glue at a local position in the circumferential direction of the core tube, a conveyor belt for transporting the core tube dipped in glue toward the paper material, the conveyor belt is connected with a push-stop member moving along with the conveyor belt, and in the process of the conveyor belt transporting the core tube, the push-stop member is close to the rear of the core tube. In particular, a blocking member is provided in the path of the conveyor belt transporting the core tube to block the front of the core tube, and the blocking member is connected with a lifting mechanism. When the core tube transported by the conveyor belt is sandwiched between the blocking member and the push-stop member, the lifting mechanism drives the blocking member to move downward to a position avoiding the core tube. In the process of the blocking member moving downward, the blocking member rubs the core tube sandwiched between the blocking member and the push-stop member so that the core tube rotates around its own axis.

[0005] As the best embodiment, the lifting mechanism is a cylinder.

[0006] As a best embodiment, the portion of the blocking member that contacts the core tube has a rough surface.

[0007] As the best implementation, the glue applied to the core tube by the gluing part is arranged at intervals in the axial direction of the core tube, and the push members are arranged at intervals along the axial direction of the core tube, and the arrangement intervals of the push members are staggered with the arrangement intervals of the glue applied to the core tube.

[0008] The utility model has the advantages of simple structure, no need to adopt a servo motor with high cost to drive the core tube to rotate, and the azimuth angle of the glue in the circumferential direction of the core tube can be adjusted with a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0010] Figure 2 is a schematic diagram of a core tube being clamped between a blocking member and a push member;

[0011] Figure 3 is a schematic diagram of the blocking member moving downward to a position away from the core tube;

[0012] Figure 4 It is a schematic diagram of the core tube contacting the paper. DETAILED DESCRIPTION

[0013] In order to facilitate the understanding of the present invention, the present invention is described more comprehensively below in conjunction with the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0014] See also Figure 1 The core tube gluing steering mechanism of the rewinding machine includes a conveyor belt 1 and a gluing part. The gluing part is mainly composed of a glue tray 2 and a gluing plate 3. The glue tray 2 is filled with glue, and the gluing plate 3 is immersed in the glue. Whenever the conveyor belt 1 transports a core tube 4 passing over the glue tray 2, the gluing plate 3 pops up to dip the glue onto the core tube 4, so that the core tube 4 is dipped into glue 5 at a local position in the circumferential direction (the bottom position of the core tube in this embodiment). It should be noted that the specific structure of the gluing part described in the utility model can adopt various gluing structures in the existing rewinding machine, and is not limited to the illustrated embodiment. It should be noted that the position where the glue is dipped onto the core tube is determined by the specific structure of the gluing part, and is not necessarily dipped at the bottom of the core tube.

[0015] The core tube 4 is placed on a circulating conveyor belt 1, and the core tube 4 dipped in glue is transported by the conveyor belt 1 toward the rewinding roller 6 of the rewinding machine, that is, toward the paper material 7. The conveyor belt 1 is connected to a pusher 8 that moves with it. When the conveyor belt 1 transports the core tube, the pusher 8 is close to the rear of the core tube. A blocking member 9 is provided in front of the core tube in the path of the conveyor belt 1 to transport the core tube. The blocking member 9 is connected to a lifting mechanism 10. When the core tube transported by the conveyor belt 1 is blocked by the blocking member 9, the core tube 4 is moved to the rear of the core tube. Figure 2 When the conveyor belt 1 is sandwiched between the blocking member 9 and the pushing member 8, the conveyor belt 1 stops moving, and the lifting mechanism 10 is immediately Figure 3As shown, the blocking member 9 is driven to move downward to a position away from the core tube. During the downward movement of the blocking member 9, the blocking member 9 rubs the core tube 4 so that the core tube 4 rotates around its own axis, so that the glue 5 originally located at the bottom of the core tube moves to the top of the core tube. Then, the conveyor belt 1 continues to transport the core tube 4 until the core tube 4 is as shown in FIG. Figure 4 As shown in the figure, the core tube 4 is fed into the core tube channel 11 below the rewinding roller 6. The core tube 4 contacts the paper material 7 passing through the rewinding roller 6 in the core tube channel 11. For this embodiment, since the azimuth angle of the glue in the circumferential direction of the core tube has been rotated from the bottom of the core tube to the top of the core tube, when the core tube 4 is Figure 4 As shown in the figure, when the paper material 7 is in contact with the end 7a of the paper material 7, the end 7a of the paper material 7 is just at a small distance from the glue 5 on the core tube 4. It should be noted that the specific angle of the core tube to rotate so that the end of the paper material is just at a small distance from the glue on the core tube can be determined by experiments. The angle that the core tube can rotate around its own axis is determined by the stroke of the core tube when the blocking member 9 moves downward. Figure 4 The paper end 7a is composed of Figure 3 The paper roll 12 in the middle is rewound and the paper tail is cut off to form.

[0016] As the best implementation, this embodiment uses a cylinder as the lifting mechanism 10 to drive the blocking member 9 to move downward.

[0017] As a best embodiment, the portion of the blocking member 9 that contacts the core tube has a rough surface 9a to prevent the blocking member 9 from slipping when rubbing the core tube. The rough surface 9a of this embodiment is a serrated surface.

[0018] As a best embodiment, the upper glue plate 3 is arranged along the axial direction of the core tube, so that the glue applied to the core tube by the upper glue portion is arranged at intervals in the axial direction of the core tube, that is, arranged at intervals in a direction perpendicular to the plane of the drawing. The pushers 8 are also arranged at intervals in the axial direction of the core tube, and the arrangement intervals of the pushers 8 are staggered with the arrangement intervals of the glue applied to the core tube, thereby preventing the pushers 8 from contacting the glue.

[0019] It should be noted that the accompanying drawings schematically only show one pusher 8. In fact, the conveyor belt 1 can be connected with a plurality of pushers 8, which are arranged at intervals along the length direction of the conveyor belt 1, and each pusher 8 pushes a core tube.

[0020] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limitations on the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. The core tube gluing and steering mechanism of the rewinding machine includes a gluing part for applying glue to a local position of the core tube in the circumferential direction, a conveyor belt for transporting the core tube dipped in glue toward the paper material, the conveyor belt is connected to a pusher moving with the conveyor belt, and the pusher is close to the rear of the core tube during the conveyor belt transporting the core tube, and is characterized by: A blocking member is provided in the path of the core tube transported by the conveyor belt to block the front of the core tube, and the blocking member is connected to a lifting mechanism. When the core tube transported by the conveyor belt is clamped between the blocking member and the pushing member, the lifting mechanism drives the blocking member to move downward to a position avoiding the core tube. In the process of the blocking member moving downward, the blocking member rubs the core tube clamped between the blocking member and the pushing member to make the core tube rotate around its own axis.

2. The core tube gluing and steering mechanism of the rewinding machine as claimed in claim 1, characterized in that The lifting mechanism is a cylinder.

3. The core tube gluing and steering mechanism of the rewinding machine as claimed in claim 1, characterized in that The portion of the blocking member contacting the core tube has a rough surface.

4. The core tube gluing and steering mechanism of the rewinding machine as claimed in claim 1, characterized in that The glue applied to the core tube by the glue applying part is arranged at intervals in the axial direction of the core tube, and the push members are arranged at intervals along the axial direction of the core tube, and the arrangement intervals of the push members are staggered with the arrangement intervals of the glue applied to the core tube.

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