Woven bag raw material winding device

Abstract

The utility model relates to a winding equipment technical field, concretely is a kind of braided bag raw material winding equipment, it solves the installation and removal of existing winding drum and winding shaft installation mode caused by hard, time-consuming and labor-consuming, including winding shaft, the hollow installation cavity is set in the inside of winding shaft, the through slot that is communicated with installation cavity and penetrates the outer wall of winding shaft is set on the outer wall of winding shaft, installation cavity is equipped with mounting bracket, a plurality of gyro wheels are rotatably installed on mounting bracket, gyro wheel passes through through slot and protrudes from the outer wall of winding shaft, and the rotating direction of gyro wheel is consistent with the axial direction of winding shaft, installation cavity is equipped with the elastic component connected with mounting bracket;When the outer sleeve winding drum of winding shaft, winding drum is inserted along the axial direction of winding shaft from one end of winding shaft, the inner wall of winding drum is contacted with gyro wheel and drives gyro wheel to rotate, and the inner wall of winding drum is compressed gyro wheel to make mounting bracket move to the inside of installation cavity, and the elastic force provided by elastic component can drive gyro wheel to be tightly pressed in the inner wall of winding drum.

Description

Technical Field

[0001] This utility model relates to the field of winding equipment technology, specifically a winding equipment for woven bag raw materials. Background Technology

[0002] Woven bags, as a lightweight, durable, and low-cost packaging material, are widely used in agriculture, industry, logistics, and other fields. Whether it is the storage and transportation of agricultural products such as grains and fertilizers, or the packaging and protection of industrial products such as building materials and hardware, woven bags are indispensable and have become an essential packaging material in daily life and production.

[0003] In the processing and production of woven bags, the raw materials must first be wound up. Common raw materials include tubular fabric used for subsequent cutting and sewing, and woven yarns used for weaving. Currently, the winding equipment used in the industry mostly works by mounting the winding drum on a winding shaft, and using a motor or other drive device to rotate the winding shaft, which in turn drives the winding drum to rotate synchronously, thereby achieving the winding operation of the woven bag raw materials.

[0004] However, the existing methods for fixing the winding drum and the take-up shaft in winding equipment have significant shortcomings: one method uses an interference fit, relying on the friction between the inner wall of the winding drum and the outer wall of the take-up shaft to achieve fixation. This method is extremely difficult to operate when inserting or removing the winding drum from the take-up shaft due to the large friction. The other method uses nuts, clips, and other fixing devices to lock the winding drum onto the take-up shaft. Although this method can ensure the stability of the fixation, the installation and removal of the winding drum requires repeated tightening or loosening of the fasteners, which is also time-consuming and laborious, seriously affecting the replacement efficiency of the winding drum and thus reducing the overall working efficiency of the winding operation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a woven bag raw material winding device, which solves the problem that the installation and disassembly of the winding cylinder and winding shaft in existing woven bag raw material winding devices is laborious, time-consuming, and reduces the efficiency of winding operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a woven bag raw material winding device, including a winding shaft, a hollow mounting cavity is provided inside the winding shaft, and a through groove is provided on the outer wall of the winding shaft, communicating with the mounting cavity and penetrating the outer wall of the winding shaft. The length direction of the through groove is parallel to the axial direction of the winding shaft. A mounting frame is installed in the mounting cavity, and multiple rollers are rotatably mounted on the mounting frame. The rollers pass through the through groove and protrude from the outer wall of the winding shaft, and the rotation direction of the rollers is consistent with the axial direction of the winding shaft. An elastic component connected to the mounting frame is installed in the mounting cavity. When a winding cylinder is fitted onto the outside of the winding shaft, the winding cylinder is inserted from one end of the winding shaft along the axial direction of the winding shaft. The inner wall of the winding cylinder contacts the rollers and drives the rollers to rotate. The inner wall of the winding cylinder presses against the rollers, causing the mounting frame to move into the mounting cavity. The elastic force provided by the elastic component can drive the rollers to press against the inner wall of the winding cylinder.

[0007] Furthermore, the elastic component is a helical spring.

[0008] Furthermore, a fixed frame is fixedly installed inside the mounting cavity, and a guide shaft is slidably installed on the fixed frame. One end of the guide shaft is fixedly connected to the mounting frame, and the sliding direction of the guide shaft is consistent with the movement direction of the mounting frame. A helical spring is sleeved outside the connecting shaft, and one end of the helical spring is connected to the mounting frame, while the other end is connected to the fixed frame. A limit block is fixedly installed at the other end of the guide shaft away from the connecting mounting frame.

[0009] Furthermore, the elastic component is a bow-shaped leaf spring, which includes a connecting portion disposed in the middle and rebound portions mounted on both sides of the connecting portion.

[0010] Furthermore, an installation shaft is installed inside the mounting cavity along the axial direction of the winding shaft, and a connecting member that can slide along the outside of the installation shaft is fitted on the outside of the installation shaft. The connecting member is fixedly connected to the spring-rebound part of the bow-shaped leaf spring, and the connecting part of the bow-shaped leaf spring is connected to the mounting frame.

[0011] Furthermore, a second guide shaft is fixedly installed on the inner wall of the mounting cavity, and a connecting block is fixedly installed on the mounting frame. The connecting block is slidably connected to the second guide shaft, and the direction in which the connecting block slides along the second guide shaft is consistent with the direction of movement of the mounting frame. A second limit block is provided at the end of the second guide shaft.

[0012] Furthermore, multiple bow-shaped leaf springs are provided, and the connecting parts on the same side of the multiple bow-shaped leaf springs are fixedly connected by connecting rods.

[0013] Furthermore, a protective sleeve is fitted onto the outer peripheral wall of the roller.

[0014] Furthermore, one end of the take-up shaft is coaxially connected to a connecting shaft.

[0015] Compared with the prior art, this utility model provides a woven bag raw material winding device, which has the following features:

[0016] Beneficial effects:

[0017] This woven bag raw material winding equipment features a mounting frame with rollers and an elastic component installed in the mounting cavity inside the winding shaft. Combined with a through groove parallel to the winding shaft axis, this allows the inner wall of the winding drum to contact the rollers protruding from the outer wall of the winding shaft when inserted along the shaft axis, driving the rollers to rotate. This rolling friction replaces the sliding friction of existing interference fits, significantly reducing the resistance during winding drum insertion and avoiding the problem of laborious installation and disassembly. Furthermore, the elastic force of the elastic component drives the rollers to remain firmly pressed against the inner wall of the winding drum, eliminating the need for nuts, clips, or other fasteners to stably fix the winding drum to the winding shaft. This eliminates the tedious steps of repeatedly disassembling and assembling fasteners, significantly improving the efficiency of winding drum installation and disassembly, thereby increasing the efficiency of the winding operation. Simultaneously, the rolling of the rollers reduces direct wear between the inner wall of the winding drum and the outer wall of the winding shaft, extending the service life of the winding shaft. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present utility model;

[0019] Figure 2 This is a side view of the first embodiment of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the internal structure of the first embodiment of the present utility model;

[0021] Figure 4 This is a side view of the internal structure of the first embodiment of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the second embodiment of the present utility model;

[0023] Figure 6 This is a side view of the second embodiment of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the internal structure of the second embodiment of the present utility model;

[0025] Figure 8 This utility model Figure 7 A partially enlarged structural diagram of point A shown in the image;

[0026] Figure 9This is a right-side perspective view of the connection between the connecting rod and the connecting piece in the second embodiment of this utility model.

[0027] Figure 10 This is a left-side perspective three-dimensional structural diagram of the connection between the connecting rod and the connecting member in the second embodiment of this utility model.

[0028] In the diagram: 1. Rewinding shaft; 2. Connecting shaft; 3. Through groove; 4. Roller; 5. Mounting bracket; 6. Mounting cavity; 7. Helical spring; 8. Fixing bracket; 9. Guide shaft one; 10. Limiting block one; 11. Bow-shaped leaf spring; 12. Mounting shaft; 13. Connecting piece; 14. Connecting rod; 15. Guide shaft two; 16. Connecting block; 17. Limiting block two; 1101. Connecting part; 1102. Springback part. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 Alternatively, 5. A woven bag raw material winding device according to this utility model includes a winding shaft 1. One end of the winding shaft 1 is provided with a connecting shaft 2 coaxially connected to itself. The connecting shaft 2 and the winding shaft 1 are integrally formed or fixedly connected to each other to ensure that they can rotate synchronously. The end of the connecting shaft 2 away from the winding shaft 1 is used to connect to the output end of a drive motor or other drive device (such as a geared motor, servo motor, etc.). The connection method can adopt conventional transmission connection methods such as coupling connection or key connection to ensure the stability of power transmission.

[0031] When the drive unit is started, its output power is transmitted to the take-up shaft 1 through the connecting shaft 2, which drives the take-up shaft 1 to rotate stably around its own axis. During the rotation of the take-up shaft 1, the winding cylinder sleeved on its outside rotates synchronously with the take-up shaft 1 to realize the winding operation of the woven bag raw materials (such as tubular cloth, woven yarn, etc.) and provide roll-shaped raw materials for the subsequent woven bag processing.

[0032] The take-up shaft 1 has a hollow mounting cavity 6 inside, providing installation space for the various components described below; the outer wall of the take-up shaft 1 has several through grooves 3, which are evenly spaced around the take-up shaft 1, so that the winding cylinder and the roller 4 described in detail below are evenly stressed. The through grooves 3 penetrate the outer wall of the take-up shaft 1 and are connected to the internal mounting cavity 6, and the length direction of the through grooves 3 is parallel to the axial direction of the take-up shaft 1.

[0033] The mounting cavity 6 is equipped with a mounting frame 5 that can move radially along the take-up shaft 1. Multiple rollers 4 are rotatably mounted on the mounting frame 5. These rollers 4 pass through the through groove 3 and protrude from the outer wall of the take-up shaft 1. The rotation direction of the rollers 4 is consistent with the axial direction of the take-up shaft 1, ensuring that the rollers 4 can roll freely along the length of the take-up shaft 1. The mounting cavity 6 also contains an elastic component connected to the mounting frame 5, which provides elasticity to the mounting frame 5.

[0034] When a winding cylinder needs to be fitted onto the outside of the take-up shaft 1, the operator inserts the winding cylinder into one end of the take-up shaft 1 along its axial direction. During this process, the inner wall of the winding cylinder first contacts the roller 4 protruding from the outer wall of the take-up shaft 1. As the winding cylinder continues to advance, its inner wall drives the roller 4 to rotate along the axial direction of the take-up shaft 1, simultaneously generating radial inward pressure on the roller 4. Under this pressure, the mounting bracket 5 moves into the mounting cavity 6, causing the elastic component to undergo elastic deformation. The reaction force of the elastic component's rebound drives the mounting bracket 5 to move outward, ensuring that the roller 4 remains tightly pressed against the inner wall of the winding cylinder, achieving a stable connection between the winding cylinder and the take-up shaft 1, and ensuring that both rotate synchronously during the winding process.

[0035] The rolling friction of roller 4 reduces the resistance during the installation and disassembly of the winding cylinder, while the tightening force of the elastic component enables a stable connection without the need for additional fasteners, effectively improving the ease of operation and work efficiency.

[0036] The following examples illustrate the installation method and configuration of the elastic component. These specific embodiments are merely illustrative examples of the technical solution of this patent and are not intended to limit the scope of protection of this patent. Without departing from the above-mentioned innovative principle, any structural adjustment of the elastic component or optimization of the installation method based on this principle shall fall within the scope of protection of this patent application.

[0037] Example 1, as Figure 1-4 As shown, the elastic component uses a helical spring 7. A fixed frame 8, which is fixedly connected to the main body of the take-up shaft 1, is fixedly installed inside the mounting cavity 6, providing support for the helical spring 7. A guide shaft 9 slides through the fixed frame 8, and a through hole is provided on the fixed frame 8 for the guide shaft 9 to pass through. The guide shaft 9 and the fixed frame 8 can also be connected by other sliding methods, as long as the axial direction of the guide shaft 9 is consistent with the radial movement direction of the mounting frame 5, ensuring that the guide shaft 9 can slide stably along the movement trajectory of the mounting frame 5. One end of the guide shaft 9 is fixedly connected to the mounting frame 5 (e.g., by welding, bolting, etc.), so that the movement of the mounting frame 5 can directly drive the guide shaft 9 to slide synchronously. The helical spring 7 is sleeved on the outside of the guide shaft 9, with one end connected to the mounting frame 5 and the other end connected to the fixed frame 8. Multiple helical springs 7 can be installed along the axial direction of the take-up shaft 1.

[0038] In addition, a limiting block 10 is fixedly provided at the other end of the guide shaft 9 away from the mounting bracket 5. The outer diameter of the limiting block 10 is larger than the diameter of the through hole on the mounting bracket 8 through which the guide shaft 9 passes. This can limit the maximum sliding stroke of the guide shaft 9, prevent the mounting bracket 5 from moving outward excessively under the elastic force of the elastic component, and prevent the guide shaft 9 from detaching from the mounting bracket 8.

[0039] Example 2, as Figure 5-8 As shown, the elastic component adopts a bow-shaped leaf spring 11. The bow-shaped leaf spring 11 includes a connecting part 1101 located in the middle and a rebound part 1102 symmetrically installed on both sides of the connecting part. The whole has an arc-shaped structure. The connecting part 1101 and the rebound part 1102 are integrally formed. A mounting shaft 12 is fixedly installed in the mounting cavity 6 of the winding shaft 1 along its axial direction. The mounting shaft 12 is fixedly connected to the inner wall of the winding shaft 1. A connecting member 13 that can slide along its axial direction is fitted on the outside of the mounting shaft 12. The connecting member 13 can be cylindrical. The connecting member 13 is fixedly connected to the rebound part 1102 of the bow-shaped leaf spring 11 (such as by welding, bolting, etc.) so that the rebound part 1102 can slide synchronously with the connecting member 13 along the mounting shaft 12. The middle connecting part of the bow-shaped leaf spring 11 is fixedly connected to the mounting frame 5.

[0040] When the winding cylinder presses the roller 4, causing the mounting frame 5 to move into the mounting cavity 6, the mounting frame 5 presses against the connecting part of the bow-shaped leaf spring 11 and moves synchronously, forcing the rebound parts 1102 on both sides to expand and deform outward and drive the connecting piece 13 to slide along the mounting shaft 12, so that the bow-shaped leaf spring 11 stores elastic potential energy; the elastic reaction force of the rebound part 1102 is transmitted to the mounting frame 5 through the connecting part 1101, driving the roller 4 to press against the inner wall of the winding cylinder, thereby achieving stable fixation of the winding cylinder.

[0041] To ensure the stability of the mounting frame 5 when it moves radially along the winding shaft 1 within the mounting cavity 6 and to prevent it from shifting or shaking, a guide shaft 2 15 is fixedly installed on the inner wall of the mounting cavity 6 of the winding shaft 1. The axial direction of the guide shaft 2 15 is consistent with the preset movement direction of the mounting frame 5 (i.e., the radial direction of the winding shaft 1), and the guide shaft 2 15 is connected to the inner wall of the mounting cavity 6 by welding, bolt fastening, or other fixing methods.

[0042] A connecting block 16 is fixedly installed on the mounting bracket 5 at the position corresponding to the guide shaft 15. The connecting block 16 has a through hole adapted to the guide shaft 15. The guide shaft 15 passes through the connecting block 16 through the through hole, forming a sliding fit. When the mounting bracket 5 moves into the mounting cavity 6 under the pressure of the roller 4, or moves outward under the elastic force of the elastic component, the connecting block 16 can slide synchronously along the guide shaft 15. The guide shaft 15 and the connecting block 16 cooperate, ensuring that the mounting bracket 5 can only move along the radial trajectory of the guide shaft 15, avoiding lateral offset, tilting, or other situations.

[0043] Meanwhile, a limiting block 17 is fixedly installed at the end of the guide shaft 15 away from the inner wall of the mounting cavity 6. The outer diameter of the limiting block 17 is larger than the diameter of the through hole on the connecting block 16. Its function is to limit the maximum sliding stroke of the guide shaft 15 and play a limiting role.

[0044] Regardless of whether the installation method of Embodiment 1 or Embodiment 2 is used, during the installation of the winding cylinder, when inserting the winding cylinder from one end of the take-up shaft 1, the insertion operation must be performed from the outer end of the take-up shaft 1 to the inner end. During the insertion process, the outer roller 4 will first contact the winding cylinder and bear force, while the inner roller 4 will be in a state of no force. The imbalance of force will directly cause the mounting frame 5 to tilt, so there will still be a certain amount of resistance during the installation process.

[0045] To address the technical problem that unbalanced forces directly cause the mounting bracket 5 to tilt, improvements are made based on Embodiment 2, such as... Figure 9-10 As shown, when multiple bow-shaped leaf springs 11 are provided, the connecting parts 13 connected to the same side of the rebound portion 1102 of all bow-shaped leaf springs 11 are fixedly connected by the same connecting rod 14. For example, the connecting parts 13 connected to the left side rebound portion 1102 of each bow-shaped leaf spring 11 are all fixed in series by a connecting rod 14; the connecting parts 13 connected to the right side rebound portion 1102 of all bow-shaped leaf springs 11 are fixed in series by another connecting rod 14, and the two connecting rods 14 are staggered to effectively avoid interference during movement.

[0046] When the winding drum is inserted inward from the outer end of the take-up shaft 1, the outer roller 4 is first subjected to force and moves inward. At this time, the arched leaf spring 11 under force expands at both ends. Through the linkage of the connecting rod 14, all other arched leaf springs 11 can be driven to expand synchronously, thereby causing all rollers 4 on the take-up shaft 1 to retract inward simultaneously. This synchronous action reduces the resistance when the winding drum is inserted, further improving the convenience of installing the winding drum on the take-up shaft 1, and effectively solving the installation obstacle problem caused by uneven force in the traditional installation method.

[0047] A protective sleeve is fitted on the outer peripheral wall of the roller 4. During the installation process of inserting the winding drum along the take-up shaft 1, the protective sleeve on the outer peripheral wall of the roller 4 can directly isolate the roller 4 from the rigid contact with the inner wall of the winding drum, which can effectively prevent the roller 4 from causing scratches, wear and other damage to the inner wall of the winding drum.

[0048] In summary, this woven bag raw material winding device, during use, aligns the winding cylinder with the outer end of the winding shaft 1 and inserts it inward along the axial direction of the winding shaft 1. During insertion, the inner wall of the winding cylinder first contacts and squeezes the roller 4 on the winding shaft 1. At this time, the contact method between the roller 4 and the inner wall of the winding cylinder changes from a traditional sliding connection to a rolling connection, significantly reducing friction and making the insertion process smoother. As the winding cylinder continues to be inserted deeper, the squeezed roller 4 moves inward towards the inside of the winding shaft 1, thereby pressing down on the elastic component. The elastic component generates a reaction force after being squeezed, which drives the mounting frame 5 and the roller 4 to expand outward, making the roller 4 tightly squeezed against the inner wall of the winding cylinder. Under the continuous action of the reaction force of the elastic component, the roller 4 always maintains a tight state against the inner wall of the winding cylinder, ultimately achieving a stable fixation of the winding cylinder on the winding shaft 1. When it is necessary to remove the winding cylinder, the winding cylinder causes the roller 4 to rotate, making the disassembly process of the winding cylinder equally convenient and smooth.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A woven bag raw material winding device, comprising a winding shaft (1), characterized in that: The take-up shaft (1) has a hollow mounting cavity (6) inside. A through groove (3) is formed on the outer wall of the take-up shaft (1) and communicates with the mounting cavity (6) and penetrates the outer wall of the take-up shaft (1). The length direction of the through groove (3) is parallel to the axial direction of the take-up shaft (1). A mounting frame (5) is installed in the mounting cavity (6). Multiple rollers (4) are rotatably mounted on the mounting frame (5). The rollers (4) pass through the through groove (3) and protrude from the outer wall of the take-up shaft (1). The rotation direction of the rollers (4) is parallel to that of the take-up shaft. The axis of shaft (1) is aligned, and an elastic component connected to the mounting frame (5) is installed in the mounting cavity (6). When the winding cylinder is fitted onto the outside of the winding shaft (1), the winding cylinder is inserted from one end of the winding shaft (1) along the axis of the winding shaft (1). The inner wall of the winding cylinder contacts the roller (4) and drives the roller (4) to rotate. The inner wall of the winding cylinder presses the roller (4) to make the mounting frame (5) move into the mounting cavity (6). The elastic force provided by the elastic component can drive the roller (4) to press against the inner wall of the winding cylinder.

2. The woven bag raw material winding equipment according to claim 1, characterized in that: The elastic component is a helical spring (7).

3. The woven bag raw material winding equipment according to claim 2, characterized in that: A fixing frame (8) is fixedly installed in the mounting cavity (6). A guide shaft (9) is slidably installed on the fixing frame (8), and one end of the guide shaft (9) is fixedly connected to the mounting frame (5). The sliding direction of the guide shaft (9) is consistent with the movement direction of the mounting frame (5). A spiral spring (7) is sleeved on the outside of the guide shaft (9), and one end of the spiral spring (7) is connected to the mounting frame (5), and the other end is connected to the fixing frame (8). A limit block (10) is fixedly installed at the other end of the guide shaft (9) away from the mounting frame (5).

4. The woven bag raw material winding device according to claim 1, characterized in that: The elastic component is a bow-shaped leaf spring (11), which includes a connecting part (1101) disposed in the middle and a rebound part (1102) installed on both sides of the connecting part (1101).

5. The woven bag raw material winding device according to claim 4, characterized in that: An installation shaft (12) is installed inside the installation cavity (6) along the axial direction of the winding shaft (1). A connecting piece (13) that can slide along the outside of the installation shaft (12) is fitted. The connecting piece (13) is fixedly connected to the spring-loaded part (1102) of the bow-shaped leaf spring (11). The connecting part (1101) of the bow-shaped leaf spring (11) is connected to the mounting bracket (5).

6. The woven bag raw material winding device according to claim 5, characterized in that: A guide shaft 2 (15) is fixedly installed on the inner wall of the mounting cavity (6), and a connecting block (16) is fixedly installed on the mounting frame (5). The connecting block (16) is slidably connected to the guide shaft 2 (15). The direction in which the connecting block (16) slides along the guide shaft 2 (15) is consistent with the direction of movement of the mounting frame (5). A limit block 2 (17) is provided at the end of the guide shaft 2 (15).

7. The woven bag raw material winding device according to claim 5, characterized in that: Multiple bow-shaped leaf springs (11) are provided, and the connecting parts (13) connected to the same side rebound part (1102) of multiple bow-shaped leaf springs (11) are fixedly connected by connecting rods (14).

8. The woven bag raw material winding device according to any one of claims 1-7, characterized in that: The outer peripheral wall of the roller (4) is fitted with a protective sleeve.

9. The woven bag raw material winding device according to claim 8, characterized in that: One end of the take-up shaft (1) is coaxially connected to a connecting shaft (2).

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