Coreless paper roll winding forming mechanism and forming process thereof

Abstract

This invention relates to the field of coreless roll paper production technology, and in particular to a coreless roll paper rewinding and forming mechanism and its forming process. The mechanism includes a frame within which a scribing cutter roller assembly is rotatably mounted. It also includes a coreless roll paper forming component, comprising an upper rewinding roller, a traction roller positioned above and close to the upper rewinding roller, a forming device positioned below the upper rewinding roller, a paper-cutting shaft on one side of the upper rewinding roller, a paper-cutting rod mounted on the paper-cutting shaft, and the paper-cutting rod capable of abutting against the outer surface of the upper rewinding roller. An air blowing pipe is also located on one side of the upper rewinding roller. This coreless roll paper rewinding and forming mechanism and its forming process overcome the shortcomings of existing technologies where the paper cutting structure and forming structure are independent, resulting in a large volume.

Description

Technical Field

[0001] This invention relates to the field of coreless roll production technology, and in particular to a coreless roll winding and forming mechanism and its forming process. Background Technology

[0002] In existing coreless roll paper forming production equipment, a forming structure is needed to roll the paper into a roll structure, and a cutting structure is needed to cut and separate the paper. However, the paper cutting structure and the forming structure are both independent structures. The independent structure makes the overall size of the equipment large, resulting in a large footprint and making maintenance and transportation inconvenient. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies where the paper cutting structure and forming structure are independent, resulting in a large volume, and to propose a coreless paper roll winding and forming mechanism and its forming process.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a coreless paper roll winding and forming mechanism, including a device frame, within which a scribing roller assembly is rotatably mounted, and further comprising:

[0006] The coreless rewinding forming assembly includes an upper rewinding roll, a traction roll positioned close to the upper rewinding roll, a forming device positioned below the upper rewinding roll, a paper-cutting shaft positioned on one side of the upper rewinding roll, a paper-cutting rod mounted on the paper-cutting shaft, the paper-cutting rod being able to abut against the outer surface of the upper rewinding roll, and an air blowing pipe positioned on one side of the upper rewinding roll, the outlet of the air blowing pipe facing the gap between the upper rewinding roll and the forming device.

[0007] Preferably, one outer end of the paper break bar is also wrapped with a protrusion, the protrusion being an elastic structure, and the protrusion being able to abut against the outer surface of the upper rewinding roller.

[0008] Preferably, it also includes a coreless paper rewinding assembly, which includes a saddle roller and a lower rewind roller. The upper rewind roller, the saddle roller, and the lower rewind roller are arranged in a triangle. The lower rewind roller is located at the output end of the upper rewind roller and the forming device.

[0009] Preferably, an adjusting rod is also installed within the equipment frame, the adjusting rod being used to control the distance between the riding roller and the upper rewinding roller and the lower rewinding roller.

[0010] Preferably, a discharge slide is also provided at one end of the outer side of the lower rewinding roller.

[0011] Preferably, the forming device has an arc-shaped structure, and a sloping portion is provided at one end of the forming device near the air blowing pipe.

[0012] A coreless paper roll forming process includes the aforementioned coreless paper roll winding and forming mechanism and a production process, the production process including:

[0013] Paper cutting: The roller group consisting of the traction roller and the upper rewinding roller clamps the paper that has been engraved by the engraving knife roller group and feeds it forward. The paper adheres to the surface of the upper rewinding roller. When the paper cutting action is performed, the paper cutting shaft drives the paper cutting bar to approach the upper rewinding roller at 50% of the linear velocity of the surface of the upper rewinding roller. The paper cutting bar presses the paper 5-20 mm behind the designated engraving line. The engraving line is formed by the engraving knife roller group acting on the paper. The pressed paper and the surface of the upper rewinding roller form a speed difference, and the paper is thus pulled apart. By wrapping the paper cutting bar with a protrusion, a rigid impact between the paper cutting bar and the upper rewinding roller is avoided.

[0014] Forming: When the paper cutter bar contacts the upper rewinding roller to complete the paper cut, the upper rewinding roller continues to feed the paper. The upper rewinding roller drives the paper to move relative to the paper cutter. Due to the speed difference between the paper cutter bar and the upper rewinding roller, the paper cutter bar has not completely detached from the upper rewinding roller at this time, causing the paper to accumulate behind the paper cutter. The accumulation point is still located in the slope section of the forming device. At the same time, the air blower blows out high-pressure airflow. The high-pressure airflow blows along the nozzle onto the accumulation point. Under the action of the high-pressure airflow, the paper at the accumulation point adheres to the surface of the upper rewinding roller and begins to roll between the upper rewinding roller and the lower forming device. The paper forms a paper roll structure, and the forming is now complete.

[0015] Rewinding: The finished paper roll is formed into a paper roll structure. With the cooperation of the upper rewinding roller and the forming device, the paper roll moves towards the lower rewinding roller. With the cooperation of the lower rewinding roller, the paper roll moves forward while curling until it enters the rewinding zone formed by the upper rewinding roller, the lower rewinding roller, and the saddle roller. In this zone, the paper roll is rewound by the contact surface of the upper rewinding roller, the lower rewinding roller, and the saddle roller to complete the curling of the paper roll until the set length is reached. Finally, the saddle roller is lifted up to release the limit and discharge the paper roll.

[0016] The coreless paper roll winding and forming mechanism and its forming process proposed in this invention have the following advantages:

[0017] The upper rewinding roll is equipped with a forming device below it. A paper-cutting shaft is located on one side of the upper rewinding roll, and a paper-cutting rod is mounted on the shaft. The paper-cutting rod can abut against the outer surface of the upper rewinding roll. During the paper-cutting and forming process, the paper-cutting rod approaches the upper rewinding roll at 50% of the linear velocity of the upper rewinding roll surface. The paper-cutting rod contacts the paper on the upper rewinding roll. Due to the speed difference between the paper-cutting rod and the paper, the paper is torn. After the paper-cutting action is completed, the paper-cutting rod does not detach from the upper rewinding roll. Because the rotational speed of the upper rewinding roll is higher than that of the paper-cutting rod... As the paper roll rotates, the cut paper accumulates behind the paper cutter. Simultaneously, a high-pressure airflow is blown out from the air pipe. This high-pressure airflow blows along the nozzle onto the accumulation point. Under the action of the high-pressure airflow, the paper at the accumulation point adheres tightly to the surface of the upper rewinding roll, and the accumulation point also comes into contact with the forming device. This causes the paper at the accumulation point to begin rolling between the upper rewinding roll and the lower forming device, forming a paper roll structure. This achieves the integration of the cutting structure and the forming structure, improves the functional density of the equipment, and ultimately reduces the size of the equipment for easier maintenance and transportation. Attached Figure Description

[0018] Figure 1 A structural diagram of the main body;

[0019] Figure 2 This is a schematic diagram of the paper cutting, forming, and rewinding process 1.

[0020] Figure 3 This is a schematic diagram of the paper cutting, forming, and rewinding process 2.

[0021] Figure 4 This is a schematic diagram of the paper cutting, forming, and rewinding process 3.

[0022] Figure 5 This is a structural diagram of process 4, which involves paper cutting, forming, and rewinding.

[0023] Figure 6 This is a structural diagram of process 5, which involves paper cutting, forming, and rewinding.

[0024] Figure 7 This is a structural diagram of process 6, which involves paper cutting, forming, and rewinding.

[0025] Figure 8 This is a structural diagram of process 7, which involves paper cutting, forming, and rewinding.

[0026] Figure 9 This is a structural diagram of process 8, which involves paper cutting, forming, and rewinding.

[0027] In the diagram: 1. Equipment frame; 2. Scribing roller assembly; 3. Traction roller; 4. Upper rewinding roller; 5. Forming device; 6. Air blowing pipe; 7. Paper cut shaft; 8. Paper cut rod; 9. Lower rewinding roller; 10. Riding roller; 11. Adjusting rod; 12. Paper roll; 13. Discharge slide; 14. Paper; 15. Protrusion block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1-9 A coreless paper roll winding and forming mechanism includes a machine frame 1, a scribing roller assembly 2 rotatably mounted inside the machine frame 1, and further includes:

[0031] The coreless rewinding forming assembly includes an upper rewinding roller 4, a traction roller 3 is arranged close to the upper rewinding roller 4, a forming device 5 is arranged below the upper rewinding roller 4, a paper break shaft 7 is arranged on one side of the upper rewinding roller 4, a paper break bar 8 is installed on the paper break shaft 7, and the paper break bar 8 can abut against the outer surface of the upper rewinding roller 4. An air blowing pipe 6 is also arranged on one side of the upper rewinding roller 4, and the output port of the air blowing pipe 6 faces the gap between the upper rewinding roller 4 and the forming device 5.

[0032] Furthermore, refer to Figure 3 The outer end of the paper break bar 8 is also wrapped with a protrusion 15. The protrusion 15 is an elastic structure and can abut against the outer surface of the upper rewinding roller 4.

[0033] Furthermore, refer to Figure 3 The forming device 5 has an arc-shaped structure, and a sloping part is provided at one end of the forming device 5 near the air blowing pipe 6.

[0034] Furthermore, refer to Figure 1 It also includes a coreless paper rewinding assembly, which includes a riding roller 10 and a lower rewinding roller 9. The upper rewinding roller 4, riding roller 10, and lower rewinding roller 9 are arranged in a triangle. The lower rewinding roller 9 is located at the output end of the upper rewinding roller 4 and the forming device 5. An adjusting rod 11 is also installed in the equipment frame 1. The adjusting rod 11 is used to control the distance between the riding roller 10 and the upper rewinding roller 4 and the lower rewinding roller 9. A discharge slide 13 is also provided at one end outside the lower rewinding roller 9. The discharge slide 13 is used to guide the output direction of the paper roll 12.

[0035] Working principle:

[0036] Paper cutting action: Refer to Figure 3The paper-cutting shaft 7 drives the paper-cutting rod 8 to rotate. The linear velocity of the surface of the rewinding roller 4 above the paper-cutting rod 8 is close to that of the upper rewinding roller 4 at 50%. The paper-cutting rod 8 contacts the paper 14 on the upper rewinding roller 4. Due to the speed difference between the paper-cutting rod 8 and the paper 14, the paper 14 is pulled apart. In order to improve the neatness of the paper 14 break, the paper 14 is pre-cut and perforated by the scribing roller group 2. The paper-cutting rod 8 presses the paper 14 5-20 mm behind the specified scribing line, and the paper 14 is pulled apart from the scribing line.

[0037] Molding process: Refer to Figure 3 After the paper-cutting action is completed, the paper-cutting rod 8 has not yet disengaged from the upper rewinding roller 4. Because the rotational speed of the upper rewinding roller 4 is higher than that of the paper-cutting shaft 7, the cut paper 14 accumulates behind the paper cutter. (Refer to...) Figure 4 Simultaneously, high-pressure airflow is blown out from the air pipe 6, and the high-pressure airflow is blown along the nozzle onto the accumulation point, as shown in the reference. Figure 5 Under the action of high-pressure airflow, the paper 14 at the accumulation point adheres tightly to the surface of the upper rewinding roller 4, and the accumulation point simultaneously contacts the forming device 5, causing the paper 14 at the accumulation point to begin rolling between the upper rewinding roller 4 and the lower forming device 5. (Refer to...) Figure 6 The paper 14 forms a paper roll 12 structure.

[0038] Re-rolling action: Refer to Figure 7 The paper roll 12 structure moves along the forming device 5 under the drive of the upper rewinding roller 4, as shown in the reference. Figure 8 The paper roll 12 continues to rewind between the upper rewind roll 4, lower rewind roll 9, and saddle roll 10 until it enters the space between the upper rewind roll 4, lower rewind roll 9, and saddle roll 10, until the set length is reached. (Refer to...) Figure 4 After the paper roll 12 reaches the set length, the paper cutting action is performed. Finally, the riding roller 10 is lifted to release the limit and discharge the paper roll 12.

[0039] Example 2

[0040] A coreless paper roll forming process includes the aforementioned coreless paper roll winding and forming mechanism and a production process, the production process including:

[0041] Paper cutting: The roller group consisting of traction roller 3 and upper rewind roller 4 clamps the paper 14 that has been engraved by the engraving knife roller group 2 and feeds it forward. The paper 14 is attached to the surface of the upper rewind roller 4. When the paper cutting action is performed, the paper cutting shaft 7 drives the paper cutting rod 8 to approach the upper rewind roller 4 at 50% of the linear speed of the surface of the rewind roller 4. The paper cutting rod 8 presses the paper 14 5-20 mm behind the designated engraving line. The engraving line is formed by the engraving knife roller group 2 acting on the paper 14. The pressed paper 14 and the surface of the upper rewind roller 4 form a speed difference, and the paper 14 is thus pulled apart. By wrapping the paper cutting rod 8 with a protrusion 15, a rigid impact between the paper cutting rod 8 and the upper rewind roller 4 is avoided.

[0042] Forming: When the paper cutter bar 8 contacts the upper rewinding roller 4 to complete the paper cut, the upper rewinding roller 4 continues to feed the paper 14. The upper rewinding roller 4 drives the paper 14 to move relative to the paper cutter. Due to the speed difference between the paper cutter shaft 7 and the upper rewinding roller 4, the paper cutter bar 8 has not completely detached from the upper rewinding roller 4 at this time, causing the paper 14 to accumulate behind the paper cutter. The accumulation point is still located in the slope section of the forming device 5. At the same time, the air blowing pipe 6 blows out high-pressure airflow. The high-pressure airflow blows along the nozzle onto the accumulation point. Under the action of the high-pressure airflow, the paper 14 at the accumulation point adheres to the surface of the upper rewinding roller 4 and begins to roll between the upper rewinding roller 4 and the lower forming device 5. The paper 14 forms a paper roll 12 structure, and the forming is completed at this time.

[0043] Rewinding: The formed paper 14 forms a paper roll 12 structure. The paper roll 12 moves toward the lower rewinding roller 9 with the cooperation of the upper rewinding roller 4 and the forming device 5. The paper roll 12 moves forward while curling with the cooperation of the lower rewinding roller 9 until it enters the rewinding interval formed by the upper rewinding roller 4, the lower rewinding roller 9, and the riding roller 10. In this interval, the paper roll 12 is rewound by the surface contact of the upper rewinding roller 4, the lower rewinding roller 9, and the riding roller 10 to complete the curling of the paper roll 12 until the set length is reached. Finally, the riding roller 10 is lifted up to release the limit and discharge the paper roll 12.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A coreless roll paper winding and forming mechanism, comprising a device frame (1), wherein a scribing roller assembly (2) is rotatably mounted within the device frame (1), characterized in that: Also includes: The coreless rewinding forming assembly includes an upper rewinding roller (4), a traction roller (3) is arranged close to the upper rewinding roller (4), a forming device (5) is arranged below the upper rewinding roller (4), a paper-cutting shaft (7) is arranged on one side of the upper rewinding roller (4), a paper-cutting rod (8) is installed on the paper-cutting shaft (7), the paper-cutting rod (8) can abut against the outer surface of the upper rewinding roller (4), and an air-blowing pipe (6) is also arranged on one side of the upper rewinding roller (4), the outlet of the air-blowing pipe (6) faces the gap between the upper rewinding roller (4) and the forming device (5).

2. The coreless roll paper winding and forming mechanism according to claim 1, characterized in that: The outer end of the paper break bar (8) is also wrapped with a protrusion (15), which is an elastic structure and can abut against the outer surface of the upper rewinding roller (4).

3. The coreless roll paper winding and forming mechanism according to claim 1, characterized in that: It also includes a coreless paper rewinding assembly, which includes a riding roller (10) and a lower rewinding roller (9). The upper rewinding roller (4), the riding roller (10), and the lower rewinding roller (9) are arranged in a triangle. The lower rewinding roller (9) is located at the output end of the upper rewinding roller (4) and the forming device (5).

4. The coreless roll paper winding and forming mechanism according to claim 3, characterized in that: An adjusting rod (11) is also installed inside the equipment frame (1). The adjusting rod (11) is used to control the distance between the riding roller (10) and the upper rewinding roller (4) and the lower rewinding roller (9).

5. The coreless roll paper winding and forming mechanism according to claim 4, characterized in that: A discharge slide (13) is also provided at one end of the outer side of the lower rewinding roller (9).

6. The coreless roll paper winding and forming mechanism according to claim 1, characterized in that: The molding device (5) has an arc-shaped structure, and a sloping part is provided at one end of the molding device (5) near the air blowing pipe (6).

7. A coreless paper roll forming process, comprising a coreless paper roll winding and forming mechanism as described in any one of claims 1 to 6, characterized in that: The production process includes: Paper cutting: The roller group consisting of the traction roller (3) and the upper rewind roller (4) clamps the paper (14) that has been engraved by the engraving roller group (2) and feeds it forward. The paper (14) is attached to the surface of the upper rewind roller (4). When the paper cutting action is performed, the paper cutting shaft (7) drives the paper cutting rod (8) to approach the upper rewind roller (4) at 50% of the linear speed of the surface of the upper rewind roller (4). The paper cutting rod (8) presses the paper (14) 5-20 mm behind the designated engraving line. The engraving line is formed by the engraving roller group (2) acting on the paper (14). The pressed paper (14) and the surface of the upper rewind roller (4) form a speed difference, and the paper (14) is thus pulled apart. By wrapping the paper cutting rod (8) with a protrusion (15), a rigid impact between the paper cutting rod (8) and the upper rewind roller (4) is avoided. Forming: When the paper cutter (8) contacts the upper rewinding roller (4) to complete the paper cut, the upper rewinding roller (4) continues to feed the paper (14). The upper rewinding roller (4) drives the paper (14) to move relative to the paper cutter. Since there is a speed difference between the paper cutter shaft (7) and the upper rewinding roller (4), the paper cutter (8) has not completely detached from the upper rewinding roller (4) at this time, causing the paper (14) to accumulate behind the paper cutter. The accumulation point is also located in the slope of the forming device (5). At the same time, the air blower (6) blows out high-pressure airflow. The high-pressure airflow blows along the nozzle onto the accumulation point. The paper (14) at the accumulation point adheres to the surface of the upper rewinding roller (4) under the action of the high-pressure airflow and begins to roll between the upper rewinding roller (4) and the lower forming device (5). The paper (14) forms a paper roll (12) structure. At this time, the forming is completed. Rewinding: The formed paper (14) forms a paper roll (12) structure. The paper roll (12) moves toward the lower rewinding roller (9) with the cooperation of the upper rewinding roller (4) and the forming device (5). The paper roll (12) moves forward while curling with the cooperation of the lower rewinding roller (9) until it enters the rewinding interval formed by the upper rewinding roller (4), the lower rewinding roller (9), and the riding roller (10). In this interval, the paper roll (12) is rewound by the contact of the upper rewinding roller (4), the lower rewinding roller (9), and the riding roller (10) until the set length is reached. Finally, the riding roller (10) is lifted up to release the limit and discharge the paper roll (12).

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