Paper tube propelling device for servo control high-speed paper container forming machine

Abstract

The utility model discloses a paper tube propelling device for a servo control high-speed paper container forming machine, which comprises a paper container forming machine main body, a rack, a paper tube seat and a support frame, a rotating shaft is arranged at the lower part of the rack, and the tail end of the rotating shaft is connected with a lead screw and is matched with threaded parts at two ends of a tube shaft through a connecting seat, a pull rod and a threaded sleeve; the front end is connected with the movable frame through a belt driving assembly. The arc-shaped positioning grooves in the two ends of the movable frame abut against the peripheral face of the barrel shaft, and the barrel shaft frame at the end of the pull rod is used for temporarily storing the empty barrel shaft. According to the device, the rotating shaft is driven by the motor, automatic removal of the empty cylinder shaft and accurate pushing of the new paper cylinder roll are synchronously achieved, the lead screw drives the pull rod to pull the empty cylinder shaft to the cylinder shaft frame for temporary storage, and the belt assembly drives the movable frame to push the new paper cylinder roll to the paper cylinder base roller. The device has the advantages that manual intervention is reduced through the full-automatic material changing process, the pushing stability is guaranteed through the arc-shaped positioning groove and the rolling wheel structure, the transmission precision is improved through threaded connection and low-friction design, the service life of parts is prolonged, and the high-speed production requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of paper product processing machinery technology, and in particular to a paper tube propulsion device for a servo-controlled high-speed paper container forming machine. Background Technology

[0002] In the production process of paper container forming machines, the feeding and replacement of paper tubes are crucial steps. Traditional paper tube feeding devices often rely heavily on manual operation, which is not only inefficient but also prone to errors due to human factors, affecting production quality. With the continuous growth of market demand for paper containers, high-speed and high-efficiency paper container forming production has become an inevitable trend, and traditional equipment can no longer meet the requirements of modern production. Moreover, manual operation consumes a lot of manpower and resources, increasing production costs and reducing the company's market competitiveness.

[0003] The existing utility model patent with authorization announcement number CN222590818U proposes a device that assists in the feeding and replacement of paper tubes through a structure including a hydraulic cylinder, connecting plate, connecting disc, and connecting rod. While this device helps with paper tube feeding and replacement to some extent and saves some manpower and resources, it still has some obvious shortcomings. On the one hand, the hydraulic cylinder's driving method has certain limitations in speed and precision control, making it difficult to accurately adjust the paper tube's pushing speed and position, and thus unable to adapt well to the fast production rhythm of high-speed paper container forming machines. On the other hand, the device's structure is relatively complex, resulting in high maintenance costs, and components such as the hydraulic cylinder are prone to failure during long-term use, affecting the continuity of production.

[0004] To address the aforementioned problems, this invention provides a novel paper tube feeding device for a servo-controlled high-speed paper container forming machine. By driving a rotating shaft with a motor and utilizing a transmission structure including a lead screw and belt drive assembly, automated paper tube feeding is achieved. Precise motor control allows for flexible adjustment of the paper tube feeding speed and position according to production needs, significantly improving production efficiency and accuracy. Furthermore, the invention features a simpler and more rational structural design, reducing vulnerable parts, lowering maintenance costs, and improving the stability and reliability of the device. This better adapts to the production requirements of high-speed paper container forming machines, providing a more efficient and stable solution for paper container forming production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a paper tube propulsion device for a servo-controlled high-speed paper container forming machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A paper tube feeding device for a servo-controlled high-speed paper container forming machine includes a paper container forming machine body. A frame is provided at the feeding end of the paper container forming machine body. Paper tube seats are provided at both ends of the top of the frame. A support frame is also provided at the end of the frame away from the paper container forming machine body. A cylindrical shaft is horizontally provided at the top of both the paper tube seats and the support frame. Paper tube rolls for making paper containers are fitted onto the outer circumference of the cylindrical shaft. A rotating shaft is horizontally inserted at the lower part of the frame. A lead screw is coaxially provided at the tail end of the rotating shaft. A connecting seat is fitted onto the lead screw. A pull rod is provided at the top of the connecting seat. A threaded sleeve is slidably fitted at the top of the pull rod. Threaded portions for matching the threaded sleeves are provided at both ends of the cylindrical shaft. A movable frame is slidably connected to the top of the support frame. The movable frame slidably abuts against the outer circumference of both ends of the cylindrical shaft at the top of the support frame. The front end of the rotating shaft is connected to the movable frame via the same belt drive assembly.

[0008] The above technical solution constructs a complete paper tube propulsion device. The components work together to enable the installation, propulsion, and replacement of paper tube rolls. A motor drives a rotating shaft, which in turn rotates a lead screw, causing the connecting seat to move. This ultimately pulls the paper tube shaft with a tie rod, removing the empty tube. Simultaneously, a belt drive assembly moves a movable frame, pushing a new paper tube roll to the working position. This improves the automation level of paper tube replacement, reduces manual intervention, and increases production efficiency. The fit between the threaded sleeve and the threaded part allows for easy connection or separation of the tie rod from the tube shaft when needed, facilitating operation and position adjustment of the paper tube shaft.

[0009] Preferably, a motor is always installed at the front end of the rotating shaft.

[0010] Through the above technical solution: the motor provides power to the entire paper tube propulsion device, ensuring that the rotating shaft can rotate normally, thereby driving the lead screw, belt drive assembly and other components to work, realizing the propulsion and replacement operation of the paper tube. By controlling the start, stop and speed of the motor, the speed and timing of the paper tube propulsion can be precisely controlled to meet the needs of different production processes.

[0011] Preferably, two cylindrical shaft supports are symmetrically provided at the ends of the tie rod.

[0012] Through the above technical solutions: the tube shaft frame provides a temporary storage location for empty tube shafts after the paper rolls have been used, avoiding the random placement of empty tube shafts that may affect the working environment and subsequent operations, making the entire device work more orderly. The symmetrically arranged tube shaft frame can better support the empty tube shafts, preventing them from shaking or falling during temporary storage, thus ensuring the stability of the device.

[0013] Furthermore, both ends of the movable frame are provided with arc-shaped positioning grooves that are adapted to the outer circumferential surface of the cylindrical shaft, and the outer circumferential surface of the cylindrical shaft slides against the inner side wall of the arc-shaped positioning groove.

[0014] Through the above technical solutions, the adaptation of the arc-shaped positioning groove to the outer circumference of the cylinder shaft allows the movable frame to better contact the cylinder shaft when pushing it, ensuring the stability and accuracy of the cylinder shaft during the pushing process, avoiding deviation or shaking of the cylinder shaft during the pushing process, and ensuring that the paper roll can accurately reach the working position. The design of the arc-shaped positioning groove can reduce the friction between the movable frame and the cylinder shaft, reduce the wear of the cylinder shaft and the movable frame, and extend the service life of the device.

[0015] Furthermore, the connecting seat is equipped with a lead screw nut for cooperating with the lead screw operation.

[0016] Through the above technical solution, the screw nut converts the rotational motion of the screw into the linear motion of the connecting seat, thereby realizing the movement of the pull rod and providing a reliable transmission method for the traction of the paper tube shaft. This ensures the normal operation of the paper tube propulsion device. The screw nut transmission has high precision and stability, and can accurately control the moving distance and speed of the connecting seat, thereby accurately controlling the traction position and speed of the paper tube shaft and improving the accuracy of paper tube propulsion.

[0017] Preferably, each paper tube holder has two rollers symmetrically hinged at the top, and the bottom of both ends of the tube shaft rolls against the outer circumferential surface of the rollers.

[0018] Through the above technical solutions: the roller configuration transforms the sliding friction between the roller shaft and the paper roll holder into rolling friction, greatly reducing the friction force of the roller shaft during movement, making the movement of the roller shaft smoother, reducing energy consumption, and also reducing the wear of the roller shaft and the paper roll holder. The symmetrically hinged rollers can provide stable support for the roller shaft, ensuring the stable placement of the roller shaft on the paper roll holder, which is beneficial to the normal use and replacement of the paper roll.

[0019] Preferably, the top of the cylinder shaft frame is provided with an arc-shaped concave surface for fitting the cylinder shaft.

[0020] Through the above technical solutions, the arc-shaped concave surface is adapted to the outer circumference of the cylinder shaft, which can better accommodate and support the cylinder shaft, making the empty cylinder shaft more stable during temporary storage and less prone to shaking or falling. The arc-shaped concave surface design can avoid rigid contact between the cylinder shaft and the cylinder shaft frame, reduce damage to the cylinder shaft surface, and extend the service life of the cylinder shaft.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model achieves full automation of the entire process of automatically removing empty paper roll shafts and precisely advancing new paper rolls by using a motor-driven rotating shaft, linked by a lead screw, belt drive assembly, and other transmission structures. Compared to traditional manual material changing or devices relying on hydraulic cylinders or other driving methods, it eliminates the need for frequent manual intervention in the paper roll changing process, avoiding problems such as long downtime and low material changing efficiency caused by manual operation, and can seamlessly adapt to the continuous production needs of high-speed paper container forming machines;

[0023] 2. By utilizing the arc-shaped positioning groove of the movable frame to slide against the outer circumference of the tube shaft, and in conjunction with the precise fit between the threaded sleeve and the threaded part, the paper tube roll is ensured to move without deviation or wobbling during the feeding process, accurately reaching the roller support position of the paper tube seat. This avoids material waste or forming quality defects caused by paper tube positioning deviation. At the same time, the rollers of the paper tube seat convert sliding friction into rolling friction, and the arc-shaped concave surface of the tube shaft frame reduces rigid contact, significantly reducing component wear and extending the service life of the device.

[0024] 3. The combination of motor drive and lead screw and nut transmission offers both high precision and flexible adjustment. A servo system can precisely control the paper roll feeding speed and stroke, adapting to the feeding requirements of paper rolls of different specifications. Compared to the complex hydraulic cylinder drive schemes in existing patents, this invention simplifies the transmission chain and reduces vulnerable parts, thus lowering the equipment failure rate and facilitating later maintenance and debugging. It is particularly suitable for scenarios requiring rapid switching between multiple paper container models, significantly improving the equipment's versatility and production flexibility.

[0025] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a paper tube propulsion device for a servo-controlled high-speed paper container forming machine proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the propulsion device structure of a paper tube propulsion device for a servo-controlled high-speed paper container forming machine proposed in this utility model.

[0028] Figure 3 This is a side view of the propulsion device of a paper tube propulsion device for a servo-controlled high-speed paper container forming machine proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the cylinder shaft traction structure of a paper cylinder propulsion device for a servo-controlled high-speed paper container forming machine proposed in this utility model.

[0030] Figure 5 This utility model proposes a paper tube feeding device for a servo-controlled high-speed paper container forming machine. Figure 4 A magnified schematic diagram of the local structure at point A.

[0031] In the diagram: 1. Main body of the paper container forming machine; 2. Frame; 3. Paper tube seat; 4. Roller; 5. Tube shaft; 6. Paper tube roll; 7. Support frame; 8. Motor; 9. Belt drive assembly; 10. Movable frame; 11. Arc-shaped positioning groove; 12. Rotary shaft; 13. Lead screw; 14. Connecting seat; 15. Tie rod; 16. Tube shaft frame; 17. Threaded sleeve; 18. Threaded part. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Example 1, referring to Figures 1 to 5 A paper tube feeding device for a servo-controlled high-speed paper container forming machine.

[0034] Rack and related component installation:

[0035] A frame 2 is installed at the feeding end of the main body 1 of the paper container forming machine, and paper tube seats 3 are installed at both ends of the top of the frame 2. A support frame 7 is installed at the end of the frame 2 away from the main body 1 of the paper container forming machine.

[0036] Installation of spools and paper rolls:

[0037] A cylindrical shaft 5 is horizontally installed on the top of the paper tube holder 3 and the support frame 7, and a paper tube roll 6 for making paper containers is fitted onto the outer circumference of the cylindrical shaft 5. Two rollers 4 are symmetrically hinged to the top of the paper tube holder 3, so that the bottom ends of the cylindrical shaft 5 roll against the outer circumference of the rollers 4 to reduce the frictional resistance of the cylindrical shaft 5 when it moves.

[0038] Installation of movable frame and related components: A sliding movable frame 10 is installed on the top of the support frame 7. The movable frame 10 has arc-shaped positioning grooves 11 at both ends that are adapted to the outer circumferential surface of the cylindrical shaft 5, so that the outer circumferential surface of the cylindrical shaft 5 slides against the inner side wall of the arc-shaped positioning groove 11, ensuring that the movable frame 10 can stably push the cylindrical shaft 5.

[0039] Transmission component installation: A rotating shaft 12 is inserted laterally into the lower part of the frame 2. A lead screw 13 is coaxially installed at the tail end of the rotating shaft 12. A connecting seat 14 is fitted onto the lead screw 13, and a lead screw nut for cooperating with the lead screw 13 is installed on the connecting seat 14. A pull rod 15 is installed on the top of the connecting seat 14. Two cylindrical shaft brackets 16 are symmetrically installed at the ends of the pull rod 15. The top of the cylindrical shaft bracket 16 has an arc-shaped concave surface for matching the cylindrical shaft 5. A threaded sleeve 17 is slidably fitted on the top of the pull rod 15, and threaded portions 18 for matching the threaded sleeve 17 are opened at both ends of the cylindrical shaft 5. Finally, the front end of the rotating shaft 12 is connected to the same belt drive assembly 9 to the movable frame 10, and a motor 8 is installed at the front end of the rotating shaft 12.

[0040] Paper tube pushing operation principle

[0041] Connection preparation: Manually move the threaded sleeve 17 to connect with the threaded part 18 at the end of the cylinder shaft 5, so that the pull rod 15 and the cylinder shaft 5 establish a transmission relationship.

[0042] Empty tube shaft removal: Start motor 8, which drives shaft 12 to rotate. Since shaft 12 is coaxial with lead screw 13, lead screw 13 will rotate synchronously. When lead screw 13 rotates, it drives connecting seat 14 to move through lead screw nut on connecting seat 14, which in turn drives pull rod 15 to move. When pull rod 15 moves, it pulls the empty tube shaft 5 of paper roll 6 to slide until the empty tube shaft 5 falls on the arc-shaped concave surface at the top of tube shaft frame 16 for temporary storage.

[0043] New paper tube feeding: While the rotating shaft 12 rotates, the movable frame 10 is driven by the belt drive assembly 9 to slide on top of the support frame 7. The movable frame 10, through the cooperation of the arc-shaped positioning groove 11 with the tube shaft 5, pushes the tube shaft 5 and the paper tube roll 6 fitted on it to the top of the roller 4 of the paper tube seat 3 for placement. At this time, the new paper tube roll 6 raw material is connected to the main body 1 of the paper container forming machine, and paper container processing can be performed.

[0044] Reset Preparation: Before resetting the motor 8, the threaded sleeve 17 must be manually separated from the threaded portion 18 of the cylindrical shaft 5, and then the empty cylindrical shaft 5 temporarily stored on the cylindrical shaft holder 16 must be removed. After completing these operations, the motor 8 can be reset to prepare for the next feeding operation.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A paper tube propelling device for servo-controlling a high speed paper container forming machine, characterized in that, The paper container forming machine body (1) is provided with a rack (2) at the feeding end, both ends of the top of the rack (2) are provided with a paper tube seat (3), and the rack (2) is further provided with a support frame (7) away from the paper container forming machine body (1). The paper tube seat (3) and the support frame (7) are both provided with a cylinder shaft (5) on the top, the outer periphery of the cylinder shaft (5) is sleeved with a paper tube roll (6) for making paper containers, the lower part of the rack (2) is transversely inserted with a rotating shaft (12), the tail end of the rotating shaft (12) is coaxially provided with a lead screw (13), the lead screw (13) is sleeved with a connecting seat (14), the connecting seat (14) is provided with a pull rod (15) on the top, the top end of the pull rod (15) is sleeved with a threaded sleeve (17), both ends of the cylinder shaft (5) are provided with a threaded portion (18) adapted to the threaded sleeve (17), the top of the support frame (7) is slidably connected with a movable frame (10), the movable frame (10) is in sliding abutment with the outer periphery of both ends of the cylinder shaft (5) on the top of the support frame (7), and the front end of the rotating shaft (12) is connected with the movable frame (10) through the same belt driving assembly (9).

2. A paper tube propelling device for use in a servo-controlled high speed paper container forming machine according to claim 1, characterized in that, The front end of the rotating shaft (12) is provided with a motor (8).

3. A paper tube propelling device for use in a servo-controlled high speed paper container forming machine according to claim 1, characterized in that, The end of the pull rod (15) is symmetrically provided with two cylinder shaft frames (16).

4. A paper tube propelling device for use in a servo-controlled high speed paper container forming machine according to claim 1, characterized in that, Both ends of the movable frame (10) are provided with an arc-shaped positioning groove (11) adapted to the outer periphery of the cylinder shaft (5), and the outer periphery of the cylinder shaft (5) is in sliding abutment with the inner side wall of the arc-shaped positioning groove (11).

5. A paper tube propelling device for use in a servo-controlled high speed paper container forming machine according to claim 1, characterized in that, The connecting seat (14) is provided with a lead screw nut for cooperating with the operation of the lead screw (13).

6. A paper tube propelling device for servo-controlling a high speed paper container forming machine according to claim 1, wherein The top of the paper tube seat (3) is symmetrically hinged with two rollers (4), and the bottom of both ends of the cylinder shaft (5) is in rolling abutment with the outer periphery of the roller (4).

7. A paper tube propelling device for use in a servo-controlled high speed paper container forming machine according to claim 3, characterized in that, The top of the cylinder shaft frame (16) is provided with an arc-shaped concave surface adapted to the cylinder shaft (5).

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