Semi-automatic wrapping machine

Abstract

The utility model discloses a kind of semi-automatic winding packaging machines, including workbench, the one end of workbench is provided with annular groove group, the annular groove group includes multiple coaxial, diameter gradually decreases from outside to inside in turn annular groove;Winding shaft piece, it includes multiple winding shafts corresponding to multiple annular grooves one by one, each winding shaft includes shaft pipe, adjusting disc, the shaft pipe is detachably connected with corresponding annular groove, locking member is equipped on the adjusting disc;Turntable assembly, it is located in the winding shaft piece side on the workbench, the turntable assembly includes rotating disc, motor rotating the rotating disc;Clamping assembly, it is located on the workbench, for clamping and setting to be wound workpiece;Storage cylinder, it is located on the workbench, the diameter of storage cylinder is greater than the outer diameter of adjusting disc.The utility model has the beneficial effect that it can adapt to winding film roll of different inner tube diameter, and the practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment. More specifically, this utility model relates to a semi-automatic wrapping machine. Background Technology

[0002] Stretch wrapping machines are key equipment in industrial production used to wrap workpieces with stretch film rolls. Traditional semi-automatic stretch wrapping machines typically use a single-specification wrapping shaft. Existing technology uses a fixed wrapping shaft structure, but existing stretch film rolls have inner cylinders of various diameters. When it is necessary to adapt to stretch film rolls with different inner diameters, the entire wrapping shaft assembly must be replaced; otherwise, the stretch film roll may wobble during the wrapping process due to the mismatched inner diameter, resulting in poor wrapping performance. This patent proposes an improvement solution to address the aforementioned technical problems. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] Another objective of this invention is to provide a semi-automatic wrapping machine that can be adapted to wrapping film rolls with different inner cylinder diameters, making it highly practical.

[0005] To achieve these objectives and other advantages according to the present invention, a semi-automatic wrapping machine is provided, comprising:

[0006] A workbench, one end of which is provided with an annular groove group, the annular groove group comprising multiple coaxial annular grooves with diameters decreasing sequentially from the outside to the inside;

[0007] A winding shaft component includes multiple winding shafts corresponding to multiple annular grooves. Each winding shaft includes a vertically arranged shaft tube and an adjusting disc that is slidably sleeved on the shaft tube. The shaft tube is detachably connected to the corresponding annular groove. The adjusting disc is provided with a locking element to fix the adjusting disc on the shaft tube when the adjusting disc slides to a set position.

[0008] A turntable assembly is disposed on the worktable and located on one side of the winding shaft. The turntable assembly includes a rotating disk and a motor for driving the rotating disk to rotate.

[0009] A clamping assembly, which is provided on the worktable, is used to clamp the workpiece to be wound;

[0010] A storage tube is placed on the workbench, and the diameter of the storage tube is larger than the outer diameter of the adjustment disc.

[0011] Preferably, a column is provided at one end of the top surface of the workbench, and a mounting bracket is provided on the column;

[0012] The clamping assembly includes a drive telescopic rod, a pressure plate, and a rubber pad, which are vertically mounted on the mounting frame. The telescopic end of the drive telescopic rod is the bottom end, and the pressure plate is rotatably mounted on the telescopic end of the drive telescopic rod. The rubber pad is applied to the side of the pressure plate away from the drive telescopic rod and is located above the rotating disk.

[0013] Preferably, it also includes a movable seat and a driving component, both disposed on the worktable. The movable seat and the rotary disk are spaced apart along the length direction of the worktable, and the movable seat is slidably disposed on the worktable and slides along the width direction of the worktable.

[0014] The annular groove group, the storage cylinder, and the winding shaft are all in pairs and correspond one-to-one. The pair of annular groove groups are disposed on both ends of the movable seat along the width direction of the worktable. The driving end of the driving member is connected to the movable seat to drive the movable seat to slide.

[0015] Preferably, the column is hollow inside, the top of the column is open and a sliding door is provided at the opening, the sliding door is provided with a handle, and the bottom end of the storage tube is located on the inner bottom wall of the column.

[0016] Preferably, the inner wall of the storage tube is lined with a soft layer.

[0017] Preferably, the soft layer is made of either sponge or flexible fabric.

[0018] Preferably, it also includes a foot switch, which is connected to the motor via a wire.

[0019] Preferably, each shaft tube is detachably provided with an annular plate at its lower part, and the outer diameter of the annular plate is larger than the outer diameter of the annular groove with the largest outer diameter.

[0020] This utility model has at least the following beneficial effects:

[0021] By setting up a worktable, annular groove group, shaft tube, adjusting plate, locking device, rotating plate, motor, and storage cylinder, a semi-automatic stretch wrapping machine is provided. In use, one shaft tube is first screwed onto the corresponding annular groove, then the stretch film roll is sleeved on the shaft tube, and then the adjusting plate is sleeved on the shaft tube and slid until the adjusting plate is attached to the top of the stretch film roll or the distance between the adjusting plate and the top of the stretch film roll is 0~1mm. This ensures that the stretch film roll can rotate during the wrapping process while also limiting the movement of the stretch film roll, avoiding excessive shaking of the stretch film roll that would result in poor wrapping effect or wrapping failure. Overall, it can adapt to the use of stretch film rolls with inner cylinders of different diameters, making it highly practical.

[0022] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0023] Figure 1 This is a front view of the structure of the semi-automatic wrapping machine according to one of the technical solutions of this utility model;

[0024] Figure 2 This is a side view of the structure of a semi-automatic wrapping machine according to one of the technical solutions of this utility model (the foot switch, mounting frame, clamping assembly and turntable assembly are not shown in the figure).

[0025] Figure 3 This is a top view of the structure of the movable seat according to one of the technical solutions of this utility model;

[0026] Figure 4 This is a top view of the column structure according to one of the technical solutions of this utility model;

[0027] Figure 5 This is a front view of the structure of the winding shaft according to one of the technical solutions of this utility model.

[0028] Reference numerals: 1-Workbench; 2-Annular groove assembly; 3-Shaft tube; 4-Adjusting disc; 5-Locking component; 6-Column; 7-Mounting bracket; 8-Drive telescopic rod; 9-Pressure plate; 10-Drive component; 11-Outrigger; 12-Handle; 13-Stretch film roll; 14-Foot switch; 15-Moving seat; 16-Soft layer; 17-Rotating disc; 18-Motor; 19-Workpiece; 20-Storage cylinder; 21-Annular plate. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0030] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0031] like Figure 1-5 As shown, this utility model provides a semi-automatic wrapping machine, comprising:

[0032] Workbench 1, one end of which is provided with an annular groove group 2, the annular groove group 2 including multiple coaxial annular grooves with diameters decreasing sequentially from the outside to the inside;

[0033] The winding shaft component includes multiple winding shafts corresponding to multiple annular grooves. Each winding shaft includes a vertically arranged shaft tube 3 and an adjusting disc 4 coaxially slidably sleeved on the shaft tube 3. The shaft tube 3 is detachably connected to the corresponding annular groove. The adjusting disc 4 is provided with a locking element 5 to fix the adjusting disc 4 on the shaft tube 3 after it slides to a set position.

[0034] A turntable assembly is provided on the worktable 1 and located on one side of the winding shaft. The turntable assembly includes a rotating disk 17 and a motor 18 that drives the rotating disk 17 to rotate.

[0035] A clamping assembly is provided on the worktable 1 for clamping the workpiece 19 to be wound;

[0036] A storage tube 20 is provided on the workbench 1, and the diameter of the storage tube 20 is larger than the outer diameter of the adjustment plate 4.

[0037] In this technical solution, the worktable 1, as the basic load-bearing structure, is constructed by welding or bolting metal plates, resulting in a smooth surface and sufficient rigidity. One end of the worktable 1 is machined using precision machining processes such as milling and grinding to create an annular groove group 2. The annular groove group 2 comprises multiple coaxial annular grooves, with their diameters decreasing sequentially from the outside to the inside. The diameter difference between adjacent annular grooves is rationally designed based on the specifications of the inner cylinder of a common wound film roll 13, such as 5mm or 10mm, and the axis of each annular groove is perpendicular to the surface of the worktable 1.

[0038] The winding shaft assembly consists of multiple winding shafts that correspond one-to-one with the annular grooves. Each winding shaft includes a shaft tube 3, an adjusting disc 4, and a rubber pad. The shaft tube 3 of each winding shaft is made of high-strength aluminum alloy or stainless steel and manufactured using precision tubing processing technology to ensure that the cylindricity and straightness errors of the shaft tube 3 are within a very small range, for example, ±0.03mm. The outer diameter of the shaft tube 3 is adapted to the inner diameter of the corresponding annular groove. The shaft tube 3 and the annular groove are connected by an interference fit or a keyed connection, etc., to ensure that the shaft tube 3 is firmly installed and easy to disassemble.

[0039] The adjusting disc 4 has a ring structure and is flexibly slidably fitted onto the shaft tube 3. The inner diameter of the adjusting disc 4 is larger than the diameter of the shaft tube 3, such as 2-5 mm, to ensure smooth sliding and prevent shaking, and also to allow the adjusting disc 4 to be removed from the shaft tube 3. The adjusting disc 4 is equipped with a locking component 5, which can be a set screw structure with a thread precision of 6H. When the adjusting disc 4 slides to the mating position, tightening the set screw presses the end of the set screw tightly against the surface of the shaft tube 3, thus firmly fixing the adjusting disc 4 to the shaft tube 3. The number of winding shafts can be adaptively designed according to requirements.

[0040] The turntable assembly is mounted on the worktable 1 and located on one side of the winding shaft. The turntable assembly includes a rotating disk 17 and a drive motor 18. The flatness error of the rotating disk 17 is controlled within ±0.05mm to ensure the stability of the workpiece 19 during rotation. The motor 18 is fixedly mounted below the worktable 1 by a bracket. The output shaft of the motor 18 rotates vertically upward through the worktable 1 and is fixedly connected to the bottom center of the rotating disk 17. The surface of the rotating disk 17 is flat and parallel to the worktable 1, and it can rotate around a vertical axis under the drive of the motor 18.

[0041] The clamping assembly is located above the rotating disk 17 and has various structures. For example, it can include two symmetrically distributed pneumatic grippers (or manual screw clamps). The grippers are fixed to the edge area of ​​the rotating disk 17 via a base and are used to clamp the workpiece 19 to be wound (such as cylindrical pipes, cartons, etc.) to ensure that the workpiece 19 rotates synchronously with the rotating disk 17.

[0042] The storage cylinder 20 is a cylindrical body, fixed to one side edge of the workbench 1 by bolts. Its inner diameter is larger than the outer diameter of the adjusting disc 4, for example, by 30-50mm. When using one winding shaft, the remaining winding shafts can be nested in descending order of diameter. For example, the smaller diameter shaft tube 3 can be inserted into the larger diameter shaft tube 3 from the top, and then nested into the storage cylinder 20 in this way, which saves space and can store the winding shafts. Similarly, when it is necessary to store the used winding shafts, the shafts are nested into the storage cylinder 20 in descending order of diameter. In actual storage, the adjusting disc 4 can be slid to the highest position and locked to minimize the space occupied in the vertical direction.

[0043] In the above technical solution, during use, a winding shaft of the corresponding specification is selected according to the inner diameter of the film roll 13 to be wound. The lower part of the shaft tube 3 of the winding shaft is aligned with the annular groove of the same specification on the worktable 1, and the shaft tube 3 is connected to the annular groove to fix the shaft tube 3 on the worktable 1. The inner tube of the film roll 13 is sleeved on the shaft tube 3, so that the inner tube of the film roll 13 and the shaft tube 3 are tightly fitted. The adjusting plate 4 is sleeved on the shaft tube 3, and the adjusting plate 4 is slid along the shaft tube 3 until the bottom surface of the adjusting plate 4 is attached to the top of the film roll 13, or a small gap of 0~1mm is maintained (by visual inspection or feeler gauge). Then, the locking piece 5 on the adjusting plate 4 is tightened to fix its position, ensuring that the film roll 13 can rotate freely on the shaft tube 3 without shifting due to excessive shaking. The workpiece 19 to be wound is placed in the center of the rotating disk 17, and the clamping assembly is activated to firmly fix the workpiece. 19; Turn on the motor 18, and the rotating disk 17 drives the workpiece 19 to rotate at a constant speed. Manually guide the end of the winding film roll 13 to adhere to the surface of the workpiece 19. As the rotating disk 17 rotates, the winding film roll 13 gradually and evenly winds around the outside of the workpiece 19. During the process, the adjusting disk 4 limits the top of the winding film roll 13 to prevent it from axially shifting or circumferentially shaking under tension, thus ensuring winding accuracy. After winding is completed, turn off the motor 18, loosen the clamping assembly and remove the workpiece 19. Rotate the winding shaft counterclockwise to remove it from the annular groove, wipe it clean, and place it vertically into the storage tube 20 for next use.

[0044] The beneficial effects of adopting this technical solution are as follows: By setting multiple annular grooves of different diameters and corresponding winding shafts, it can adapt to various inner cylinder diameters of the wrapping film rolls 13 on the market (such as 50mm, 70mm, 90mm, etc.), without replacing the entire equipment, only the corresponding winding shaft needs to be replaced, thus reducing the cost of use; the gap control between the adjusting plate 4 and the top of the wrapping film roll 13 (0~1mm) can ensure that the wrapping film roll 13 can rotate flexibly on the shaft tube 3, while effectively limiting its axial movement range, avoiding problems such as winding skewing, wrinkling or breakage caused by the shaking of the wrapping film roll 13, and significantly improving the winding quality; the setting of the storage tube 20 provides a dedicated storage space for idle winding shafts, preventing the shaft tube 3 from being scattered or lost, while keeping the workbench 1 clean and improving the convenience of operation. The cooperation between the turntable assembly and the clamping assembly realizes the automatic rotation and fixation of the workpiece 19, reducing manual intervention and improving winding efficiency; the locking part 5 of the adjusting plate 4 is designed to ensure stable limit position, the overall structure is simple and durable, and the maintenance cost is low.

[0045] In another technical solution, a column 6 is provided at one end of the top surface of the workbench 1, and a mounting bracket 7 is provided on the column 6;

[0046] The clamping assembly includes a drive telescopic rod 8, a pressure plate 9, and a rubber pad, which are vertically mounted on the mounting frame 7. The telescopic end of the drive telescopic rod 8 is the bottom end. The pressure plate 9 is rotatably mounted on the telescopic end of the drive telescopic rod 8. The rubber pad is applied to the side of the pressure plate 9 away from the drive telescopic rod 8. The rubber pad is located above the rotating disk 17.

[0047] In the above technical solution, a column 6 is vertically installed at one end of the top surface of the workbench 1. The bottom of the column 6 is equipped with a support leg 11, which is fixed to the workbench 1 by anchor bolts. The tightening torque of the anchor bolts is controlled between 80-100 N·m. A mounting bracket 7 is mounted on the column 6. The mounting bracket 7 is connected to the column 6 by welding, and the weld quality meets relevant standards, providing a reliable support structure for the installation of the clamping assembly. The height of the mounting bracket 7 is designed according to the dimensions of common workpieces 19, ensuring that the clamping assembly can effectively act on the workpiece 19.

[0048] The clamping assembly mainly includes a drive telescopic rod 8, a clamping plate 9, and a rubber pad, all vertically mounted on the mounting frame 7. The drive telescopic rod 8 can be an electric push rod, driven by a lead screw via a motor 18 to achieve extension and retraction. The power of the motor 18 is selected based on the required clamping force, generally between 0.2-0.5kW, and the stroke can be adjusted between 100-300mm according to the height of the workpiece 19. The telescopic end of the drive telescopic rod 8 is located at the bottom, and the clamping plate 9 is rotatably connected to it via a bearing. A deep groove ball bearing is used to ensure flexible rotation. The clamping plate 9 is made of aluminum alloy with an anodized surface to enhance wear resistance. A rubber pad, made of natural rubber with a thickness of 5-8mm, is tightly fitted onto the side of the clamping plate 9 away from the drive telescopic rod 8. The rubber pad is positioned directly above the rotating disk 17, effectively clamping the workpiece 19 when the drive telescopic rod 8 extends, preventing displacement of the workpiece 19 during winding.

[0049] In this technical solution, when the workpiece 19 to be wound is placed on the rotating disk 17, the operator controls the control switch of the drive telescopic rod 8 to energize it. The motor 18 of the drive telescopic rod 8 drives the lead screw to rotate, causing the telescopic end to extend downwards. As the telescopic end descends, it drives the clamping plate 9, which is rotatably connected to it, to move downwards. When the rubber pad on the clamping plate 9 contacts the surface of the workpiece 19, the operator continues to control the drive telescopic rod 8 to extend the telescopic end a certain distance, so that the rubber pad applies a certain pressure to the surface of the workpiece 19, thereby clamping the workpiece 19 tightly between the rotating disk 17 and the clamping plate 9. When the motor 18 drives the rotating disk 17 to rotate, causing the workpiece 19 to perform the winding operation, since the clamping plate 9 and the telescopic end of the drive telescopic rod 8 are rotatably connected by bearings, the clamping plate 9 can rotate freely with the rotation of the workpiece 19. In this way, the clamping plate 9 can both clamp the workpiece 19, ensuring the stability of the workpiece 19 during the winding process, and will not hinder the rotation of the workpiece 19, allowing the winding operation to proceed smoothly. After the winding operation is completed, the operator controls the control switch of the drive telescopic rod 8 to retract the telescopic end of the drive telescopic rod 8 upward, which drives the clamping plate 9 to move upward, thereby loosening the clamping of the workpiece 19. At this time, the operator can remove the wound workpiece 19 from the rotating plate 17.

[0050] The beneficial effects of adopting this technical solution are that the design of this clamping component can effectively clamp the workpiece 19, ensuring that the workpiece 19 will not shake or shift during the winding process, thereby guaranteeing the stability and accuracy of the winding operation. The use of rubber pads has multiple advantages. On the one hand, it can increase the friction with the surface of the workpiece 19, making the clamping effect better; on the other hand, the soft texture of the rubber pad can avoid damage to the surface of the workpiece 19, especially for some workpieces with fragile or easily scratched surfaces, providing excellent protection and further improving packaging quality.

[0051] In another technical solution, a movable seat 15 and a driving member 10 are also provided on the worktable 1. The movable seat 15 and the rotary disk 17 are spaced apart along the length direction of the worktable 1. The movable seat 15 is slidably disposed on the worktable 1 and slides along the width direction of the worktable 1.

[0052] The annular groove group 2, the storage cylinder 20 and the winding shaft are all a pair and correspond one-to-one. The pair of annular groove groups 2 are respectively disposed on both ends of the movable seat 15 along the width direction of the worktable 1. The driving end of the driving member 10 is connected to the movable seat 15 to drive the movable seat 15 to slide.

[0053] In this technical solution, the worktable 1 is further provided with a movable seat 15. The movable seat 15 and the rotary disk 17 are spaced apart along the length direction of the worktable 1, and the movable seat 15 can slide smoothly along the width direction on the worktable 1. The movable seat 15 adopts a T-shaped slider and a T-shaped guide rail of the worktable 1 to cooperate. The cooperation gap between the T-shaped slider and the guide rail is controlled between 0.05-0.1mm to ensure sliding accuracy. On the movable seat 15, a pair of annular groove groups 2 are arranged in an orderly manner along the width direction of the worktable 1. The structure of the pair of annular groove groups 2 is identical.

[0054] The drive unit 10 is mounted on the worktable 1, and its drive end is precisely connected to the movable seat 15. It is mainly responsible for driving the movable seat 15 to slide on the worktable 1. The drive unit 10 can be an electric linear module, which drives the lead screw through the motor 18 to drive the movable seat 15 to slide. The power of the motor 18 is selected according to the movable seat 15 and the load weight to ensure that the movable seat 15 can be accurately moved to the required position.

[0055] The winding shaft and the storage cylinder 20 are each configured as a pair, and each corresponds one-to-one with a pair of annular groove groups 2. Through this reasonable layout, different specifications of winding shafts can be quickly switched according to different winding requirements, improving work efficiency. In actual use, the spacing between the pair of annular groove groups 2 is designed according to the actual situation, ensuring that it does not interfere with the use of the winding film roll 13.

[0056] In this technical solution, when the winding shaft needs to be changed according to different winding requirements, the operator first starts the drive unit 10, causing the drive end of the drive unit 10 to push the moving seat 15 to slide along the width direction of the worktable 1. According to the required winding shaft specifications, the operator controls the stroke of the drive unit 10 to move one of the annular groove groups 2 on the moving seat 15 to the working position. Then, the operator installs the corresponding winding shaft on the required annular groove, places the wrapping film roll 13 onto the winding shaft, and places the workpiece 19 to be wound on the rotating disk 17, causing the clamping assembly to clamp the workpiece 19. Then, the motor 18 is started, driving the rotating disk 17 to rotate for winding. When one wrapping film roll 13 is used up, it can be quickly switched to another wrapping film roll 13 to continue winding; during the winding of the workpiece 19, the operator can remove the used wrapping film roll 13 and replace it with a new one.

[0057] The beneficial effects of this technical solution are that by adding the movable seat 15 and the driving component 10, and by setting up a pair of annular groove groups 2, a pair of winding shafts, and a pair of storage cylinders 20, two suitable winding shafts can be pre-selected and installed on the appropriate annular grooves of the pair of annular groove groups 2, and the corresponding winding film rolls 13 can be installed. In this way, on the one hand, the operator can quickly and conveniently switch between different specifications of winding shafts according to different winding needs, without spending a lot of time on complicated adjustments or replacement operations. On the other hand, when one winding film roll 13 is used up, it can be quickly switched to another winding film roll 13, avoiding the time spent on stopping the machine to replace the winding film roll 13, and greatly improving work efficiency.

[0058] In another technical solution, the column 6 is hollow inside, the top of the column 6 is open and a sliding door is provided at the opening, the sliding door is provided with a handle 12, and the bottom end of the storage tube 20 is provided on the inner bottom wall of the column 6.

[0059] In this technical solution, specifically, the column 6 is hollow inside with an open top. A sliding door is hinged to the open top, and a handle 12 is provided on the sliding door. Inside the column 6, there is a pair of storage cylinders 20, with the bottom end of each storage cylinder 20 located on the inner bottom wall of the column 6. When the winding shaft needs to be used or stored, the sliding door is opened using the handle 12, and the winding shaft is taken out or placed into the storage cylinder 20 inside the column 6. Since the storage cylinders 20 are located inside the column 6, they can better protect the winding shaft and prevent it from being bumped or damaged by the outside world. Overall, this design of the technical solution hides the storage cylinders 20 inside the column 6, which not only saves space but also improves the safety and neatness of the storage of the winding shaft.

[0060] In another technical solution, the inner wall of the storage cylinder 20 is covered with a soft layer 16. The beneficial effect of this technical solution is that when the winding shaft is sleeved and stored in the storage cylinder 20, the soft layer 16 on the inner wall can play a buffering role, avoiding direct collision between the winding shaft and the inner wall of the storage cylinder 20, reducing the wear of the winding shaft. The soft layer 16 extends the service life of the winding shaft, and at the same time, it can better protect the surface of the winding shaft and ensure its performance in subsequent use.

[0061] In another technical solution, the soft layer 16 is made of either sponge or flexible fabric. The advantages of this solution are that sponge and flexible fabric are relatively inexpensive and readily available and replaceable. Furthermore, the design of the soft layer 16 can reduce noise generated by the collision between the winding shaft and the inner wall of the storage cylinder 20 during operation.

[0062] In another technical solution, a foot switch 14 is also included. The foot switch 14 is connected to the motor 18 via a wire; the specific connection method is well-established and will not be elaborated upon here. The beneficial effect of this technical solution is that the operator can control the start and stop of the motor 18 by stepping on the foot switch 14. When the motor 18 needs to be started to drive the rotating disk 17 for winding operations, the foot switch 14 is stepped on; when the operation is completed or needs to be paused, the foot switch 14 is released. The foot switch 14 allows the operator to more conveniently control the operation of the packaging machine, freeing up their hands and improving operational convenience and work efficiency.

[0063] In another technical solution, each shaft tube 3 is detachably provided with an annular plate 21 at the lower part. The outer diameter of the annular plate 21 is larger than the outer diameter of the largest annular groove, so that when the shaft tube 3 is installed on the corresponding annular groove, the annular plate 21 blocks the annular groove group 2, and the top surface of the annular plate 21 forms the resting surface of the winding film roll 13.

[0064] In this technical solution, the annular plate 21 can be made of high-strength plastic or aluminum alloy. If plastic is used, it can be molded by injection molding; if aluminum alloy is used, it can be manufactured by machining. The outer diameter of the annular plate 21 needs to be carefully designed to ensure that it is larger than the outer diameter of the largest annular groove, so as to ensure that it can completely cover the annular groove group 2. The thickness of the annular plate 21 is between 5-10mm to ensure that it has sufficient strength to support the winding film roll 13. The top surface of the annular plate 21 needs to be finely processed, such as grinding or polishing, to form a smooth and flat surface for placing the winding film roll 13.

[0065] The shaft tube 3 and the annular plate 21 can be connected by threaded connection or snap-fit ​​connection. Specifically, the threaded connection involves machining an external thread on the lower part of the shaft tube 3 and an internal thread on the center of the annular plate 21. The annular plate 21 is then tightened onto the shaft tube 3 by rotating it. Depending on the actual situation, the external thread can be designed with a certain length to adjust the position of the annular plate 21 on the shaft tube 3. The specifications and precision of the thread must be reasonably selected according to the dimensions of the shaft tube 3 and the annular plate 21 to ensure a firm connection and easy disassembly. The snap-fit ​​connection involves setting a groove on the lower part of the shaft tube 3 and a corresponding elastic snap-fit ​​at the center of the annular plate 21. When the annular plate 21 is pressed onto the shaft tube 3, the snap-fit ​​engages with the groove to achieve connection. Disassembly is achieved by pressing the snap-fit.

[0066] After the shaft tube 3 is installed on the corresponding annular groove, the annular plate 21 can naturally cover the annular groove group 2. During the installation process, it is necessary to ensure that the shaft tube 3 and the annular groove are accurately matched, and that the center of the annular plate 21 coincides with the center of the shaft tube 3, so as to ensure that the annular plate 21 can evenly cover the annular groove group 2, and that its top surface remains horizontal, providing a stable support surface for the winding film roll 13.

[0067] In this technical solution, during use, a suitable annular plate 21 is selected based on the specifications of the shaft tube 3 and the condition of the wrapping film roll 13 to be used. Ensure that the inner diameter of the annular plate 21 matches the outer diameter of the shaft tube 3, and that the outer diameter meets the requirements for blocking the annular groove group 2. Securely install the annular plate 21 at the bottom of the shaft tube 3. During installation, pay attention to the firmness of the connection to prevent the annular plate 21 from loosening during use. Insert the shaft tube 3 with the annular plate 21 into the corresponding annular groove on the worktable 1. During insertion, operate slowly and smoothly to ensure that the shaft tube 3 accurately falls into the annular groove, while the annular plate 21 completely blocks the annular groove group 2, and its top surface is basically parallel to the surface of the worktable 1. Preferably, after the shaft tube 3 is inserted into the annular groove, the bottom of the annular plate 21 is attached to the top surface of the annular groove. Place the wrapping film roll 13 onto the shaft tube 3, ensuring that its bottom inner cylinder end face is tightly attached to the top surface of the annular plate 21. At this time, the top surface of the annular plate 21 provides a stable resting surface for the wrapping film roll 13. It should be noted that the inner diameter of the storage tube 20 must be larger than the diameter of the annular plate 21 and also larger than the diameter of the adjusting plate 4. This way, when storing the wound shaft, the annular plate 21 can be removed from the shaft tube 3. First, the shaft tube 3 with the adjusting plate 4 is placed into the storage tube 20, and then the annular plate 21 is placed into the storage tube 20. This is equivalent to placing the annular plate 21 above the shaft tube 3 / adjusting plate 4.

[0068] The beneficial effect of adopting this technical solution is that the top surface of the annular plate 21 provides a large area and stable resting surface for the winding film roll 13, avoiding the influence of the annular groove group 2 on the rotation of the winding film roll 13 when the winding film roll 13 is placed directly on the annular groove group 2. In particular, for large-diameter and heavy winding film rolls 13, the supporting role of the annular plate 21 is more obvious, which can ensure that the winding film roll 13 rotates and unfolds smoothly, thereby improving the winding quality and efficiency.

[0069] The number of devices and processing capacity described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of the semi-automatic wrapping machine of this utility model will be readily apparent to those skilled in the art.

[0070] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A semi-automatic stretch wrapping machine, characterized in that, include: A workbench, one end of which is provided with an annular groove group, the annular groove group comprising multiple coaxial annular grooves with diameters decreasing sequentially from the outside to the inside; A winding shaft component includes multiple winding shafts corresponding to multiple annular grooves. Each winding shaft includes a vertically arranged shaft tube and an adjusting disc that is slidably sleeved on the shaft tube. The shaft tube is detachably connected to the corresponding annular groove. The adjusting disc is provided with a locking element to fix the adjusting disc on the shaft tube when the adjusting disc slides to a set position. A turntable assembly is disposed on the worktable and located on one side of the winding shaft. The turntable assembly includes a rotating disk and a motor for driving the rotating disk to rotate. A clamping assembly, which is disposed on the worktable, is used to clamp the workpiece to be wound; A storage tube is placed on the workbench, and the diameter of the storage tube is larger than the outer diameter of the adjustment disc.

2. The semi-automatic wrapping machine as described in claim 1, characterized in that, The workbench has a column at one end of its top surface, and a mounting bracket is provided on the column; The clamping assembly includes a drive telescopic rod, a pressure plate, and a rubber pad, which are vertically mounted on the mounting frame. The telescopic end of the drive telescopic rod is the bottom end, and the pressure plate is rotatably mounted on the telescopic end of the drive telescopic rod. The rubber pad is applied to the side of the pressure plate away from the drive telescopic rod and is located above the rotating disk.

3. The semi-automatic wrapping machine as described in claim 2, characterized in that, It also includes a movable seat and a driving component, both of which are provided on the worktable. The movable seat and the rotary disk are spaced apart along the length direction of the worktable. The movable seat is slidably disposed on the worktable and slides along the width direction of the worktable. The annular groove group, the storage cylinder, and the winding shaft are all in pairs and correspond one-to-one. The pair of annular groove groups are disposed on both ends of the movable seat along the width direction of the worktable. The driving end of the driving member is connected to the movable seat to drive the movable seat to slide.

4. The semi-automatic wrapping machine as described in claim 3, characterized in that, The column is hollow inside, with an open top and a sliding door at the opening. The sliding door has a handle, and the bottom of the storage cylinder is located on the inner bottom wall of the column.

5. The semi-automatic wrapping machine as described in claim 4, characterized in that, The inner wall of the storage tube is lined with a soft layer.

6. The semi-automatic wrapping machine as described in claim 5, characterized in that, The soft layer is made of either sponge or flexible fabric.

7. The semi-automatic wrapping machine as described in claim 1, characterized in that, It also includes a foot switch, which is connected to the motor via a wire.

8. The semi-automatic wrapping machine as described in claim 1, characterized in that, Each shaft tube has a detachable annular plate at its lower part, and the outer diameter of the annular plate is larger than the outer diameter of the largest annular groove.

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