Feeding mechanism of a lightweight sheet wrapping machine
By using a servo motor-driven lead screw adjustment mechanism and electric push rod, combined with stop bars and baffles, the problem of precise control of the feeding mechanism of the sheet wrapping machine is solved, improving production efficiency and product quality, and adapting to multi-variety, small-batch production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIDA PACKAGING TECH (KUNSHAN) CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional sheet wrapping machines have difficulty accurately controlling the material conveying position and speed, resulting in material deviation and packaging misalignment. Furthermore, the adjustment process is cumbersome and cannot adapt to multi-variety, small-batch production.
The system employs a servo motor-driven screw adjustment mechanism and electric actuator, combined with baffles and stop bars, to achieve precise material positioning and adaptation. The screw adjustment mechanism adjusts the width of the front frame, while the electric actuator drives the baffles to rise and fall, and the cylinder limits the movement to ensure accurate material delivery.
It enables precise material delivery and positioning, improves product qualification rate, simplifies adjustment process, and adapts to the needs of multi-variety, small-batch production.
Smart Images

Figure CN224576900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wrapping machines, specifically a feeding mechanism for a lightweight sheet wrapping machine. Background Technology
[0002] In the production operation of sheet wrapping machines, the feeding mechanism is one of the core components that determines the quality and production efficiency of the wraps. Currently, the feeding mechanisms of sheet wrapping machines on the market generally suffer from the following problems:
[0003] Traditional feeding mechanisms often use manual adjustment or simple mechanical transmission, which makes it difficult to accurately control the material conveying position and speed. This can lead to problems such as material deviation and packaging misalignment in subsequent wrapping processes, resulting in a low product qualification rate. When it is necessary to adapt to sheet materials of different specifications, multiple parts need to be disassembled or replaced. The adjustment process is cumbersome and time-consuming, which cannot meet the production needs of multiple varieties and small batches. Utility Model Content
[0004] The purpose of this invention is to provide a lightweight feeding mechanism for a sheet wrapping machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A feeding mechanism for a lightweight sheet wrapping machine includes a tooling table. A top plate is fixedly connected to the top of the tooling table. An electric push rod mounting seat is located in the upper middle part of the top plate. A motor is installed at the power input end of the electric push rod mounting seat. A push-pull rod is installed at the driven end of the electric push rod mounting seat. A lead screw cylinder is threadedly connected to the outer wall of the push-pull rod and is fixedly connected to the outer wall of the feeding table. A slider is fixedly connected to the side of the feeding table away from the tooling table. A feeding frame is fixedly connected to the right side of the tooling table, and the inner frame of the feeding frame is slidably connected to the outer wall of the slider. A feeding plate frame is provided at the front end of the feeding frame, and a front frame is installed on the side of the feeding frame away from the feeding frame.
[0007] As a further embodiment of this utility model: the feeding frame includes a horizontal bar fixedly connected to the feeding frame, an adjusting block is fixedly connected to the bottom of the horizontal bar, an mounting platform is fixedly connected to the upper part of the horizontal bar, and a stop bar is installed on the upper surface of the mounting platform.
[0008] As a further improvement of this utility model: the number of the adjusting blocks is two sets, and the drive shafts of the two sets of adjusting blocks pass through the outer wall of the electric push rod body and are rotatably connected to the inner frame of the feeding frame.
[0009] As a further embodiment of this utility model: a screw adjustment mechanism is fixedly connected to the center of the outer wall of the front frame; a roller is rotatably connected to the lower part of the inner frame of the front frame; a crossbeam is fixedly connected to the center of the inner frame of the front frame; a lower frame is fixedly connected to the front end of the crossbeam; and a belt frame is installed at the bottom of the lower frame.
[0010] As a further embodiment of this utility model: the lower part of the inner frame of the front frame is provided with crossbars, and there are two sets of crossbars. The ends of the two sets of crossbars that are close to each other are respectively fixedly connected to belt frame two and belt frame one. Belts are installed on the opposite side of belt frame one and belt frame two.
[0011] As a further embodiment of this utility model: a fixing block is fixedly connected to the back of the crossbeam, a cylinder is installed on the upper part of the fixing block, and a baffle is installed on the pushing end of the cylinder.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model uses a lead screw adjustment mechanism to adjust the overall width of the front frame, so that the belt spacing matches the material width; and uses an electric push rod to drive the adjustment block, which in turn raises and lowers the baffle bar, so that the distance between the baffle bar and the feeding table matches the material thickness.
[0014] This utility model neatly stacks sheet materials in the feeding frame, with the bottom of the materials in contact with the surface of the feeding table; the servo motor is started, and the electric push rod mounting base drives the push-pull rod to extend and retract, causing the feeding table to move along the guide direction of the slider and the feeding frame groove, pushing the materials into the feeding frame.
[0015] This utility model uses baffles inside the feeding frame to limit the material on both sides, preventing the material from shifting laterally, while the feeding platform continues to push the material into the front frame. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the feeding mechanism of a lightweight sheet wrapping machine.
[0017] Figure 2 This is an assembly drawing of the front frame in the feeding mechanism of a lightweight sheet wrapping machine.
[0018] Figure 3 In the feeding mechanism of a lightweight sheet wrapping machine Figure 2 Enlarged view of point A.
[0019] In the diagram: 1. Tooling table; 2. Controller; 3. Feeding table; 4. Slider; 5. Electric actuator mounting base; 6. Feeding frame; 7. Top plate; 8. Push-pull rod; 9. Baffle; 10. Plate body; 11. Discharge table; 12. Horizontal bar; 13. Stop bar; 14. Mounting table; 15. Adjusting block; 16. Electric actuator body; 17. Front frame; 18. Fixing block; 19. Cylinder; 20. Lower frame; 21. Pressure roller; 22. Screw adjustment mechanism; 23. Handle; 24. Crossbeam; 25. Belt frame one; 26. Belt; 27. Belt frame two. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-3 In this embodiment of the utility model, a feeding mechanism for a lightweight sheet wrapping machine includes a tooling table 1. A top plate 7 is fixedly connected to the top of the tooling table 1 by bolts. The top plate 7 is a rectangular steel plate used to support the core transmission components.
[0022] An electric actuator mounting base 5 is fixedly installed in the upper middle part of the top plate 7. The power input end of the electric actuator mounting base 5 is equipped with a servo motor through a coupling. The servo motor can achieve precise speed control. The driven end of the electric actuator mounting base 5 is connected to a push-pull rod 8 through a thread. The outer wall of the push-pull rod 8 has an external thread, and a lead screw cylinder (not marked) is connected to the thread on its outer wall. The outer wall of the lead screw cylinder is fixedly connected to the outer wall of the feeding table 3 by welding. The electric actuator mounting base 5 is driven by the servo motor to drive the push-pull rod 8 to extend and retract, thereby pushing the lead screw cylinder and the feeding table 3 to move in the horizontal direction, so as to achieve precise position adjustment of the feeding table 3.
[0023] A slider 4 is fixedly connected to the side of the feeding table 3 away from the tooling table 1 by bolts. A loading frame is fixedly connected to the right side of the tooling table 1 by welding. The loading frame is a U-shaped frame structure. A groove adapted to the slider 4 is opened on its inner side wall. The inner frame of the loading frame is slidably connected to the outer wall of the slider 4. The cooperation between the slider 4 and the groove can guide the movement direction of the feeding table 3 and prevent the feeding table 3 from deviating.
[0024] The front end of the feeding frame is fixed with a feeding frame 6 by bolts. The feeding frame 6 is used for the initial positioning of the material. The side of the feeding frame 6 away from the feeding frame is fixed with a front frame 17 by bolts. The front frame 17 is a rectangular frame used to realize the final positioning and conveying of the material.
[0025] The feeding frame 6 includes a horizontal bar 12 that is fixedly connected to the feeding frame by bolts. The horizontal bar 12 is a long strip of aluminum alloy profile. An adjusting block 15 is fixedly connected to its bottom by bolts. There are two sets of adjusting blocks 15, which are symmetrically distributed at both ends of the horizontal bar 12. The upper part of the horizontal bar 12 is fixedly connected to the mounting platform 14 by bolts. A stop bar 13 is installed on the upper surface of the mounting platform 14 by bolts. The stop bar 13 is made of rubber and can limit the material on both sides without damaging the material.
[0026] The drive shafts of the two sets of adjustment blocks 15 pass through the outer wall of the electric push rod body 16 and are rotatably connected to the inner frame of the feeding plate frame 6 through bearings. The electric push rod body 16 drives the adjustment blocks 15 to rotate, which can drive the horizontal bar 12 and the stop bar 13 to move in the vertical direction, thereby adjusting the distance between the stop bar 13 and the feeding table 3 to adapt to sheet materials of different thicknesses.
[0027] A screw adjustment mechanism 22 is bolted to the center of the outer wall of the front frame 17. The screw adjustment mechanism 22 can manually adjust the overall width of the front frame 17 to accommodate materials of different widths. A roller (not labeled) is rotatably connected to the lower part of the inner frame of the front frame 17 via a bearing. The roller is used to assist in material conveying and reduce friction between the material and the inner wall of the front frame 17. A crossbeam 24 is welded to the center of the inner frame of the front frame 17. The front end of the crossbeam 24 is bolted to the lower frame 20. A belt frame 25 is bolted to the bottom of the lower frame 20.
[0028] The lower part of the inner frame of the front frame 17 is bolted with crossbars (not marked), and there are two sets of crossbars. The two sets of crossbars are distributed in parallel. The ends of the two sets of crossbars that are close to each other are bolted to belt frame 27 and belt frame 25 respectively. Belt 26 is installed on the side of belt frame 25 and belt frame 27 facing each other. Belt 26 is driven by a motor (not marked) and can drive the material to be transported smoothly along the length of the front frame 17.
[0029] A fixing block 18 is fixedly connected to the back of the crossbeam 24 by bolts. A cylinder 19 is installed on the upper part of the fixing block 18 by bolts. A baffle is installed on the pushing end of the cylinder 19 by bolts. The baffle is made of plastic. The cylinder 19 can drive the baffle to rise and fall in the vertical direction. When the material is conveyed to the designated position, the baffle descends to limit the material, ensuring the accurate position of the material and facilitating the subsequent wrapping process.
[0030] The working principle of this utility model is as follows:
[0031] In use, the overall width of the front frame 17 is adjusted by the lead screw adjustment mechanism 22 according to the width of the material to be conveyed, so that the belt spacing 26 is adapted to the width of the material; the electric push rod body 16 drives the adjustment block 15 to drive the baffle 13 to rise and fall, so that the distance between the baffle 13 and the feeding table 3 is adapted to the thickness of the material, so that the sheet material is neatly stacked in the feeding frame, and the bottom of the material is in contact with the surface of the feeding table 3; the servo motor is started, and the electric push rod mounting seat 5 drives the push-pull rod 8 to extend and retract, so that the feeding table 3 moves along the guide direction of the slider 4 and the feeding frame slide, pushing the material into the feeding plate frame 6;
[0032] The baffle 13 inside the feeding frame 6 limits the material on both sides to prevent the material from shifting laterally, while the feeding table 3 continues to push the material into the front frame 17.
[0033] The belt 26 inside the front frame 17 rotates under the drive of the drive motor, smoothly conveying the material along the direction of the roller. At the same time, the roller reduces the friction between the material and the inner wall of the front frame 17. When the material is conveyed to the designated position of the front frame 17, the cylinder 19 drives the baffle to descend, limiting the end of the material to ensure accurate material positioning.
[0034] After the limit is completed, the baffle rises under the drive of cylinder 19, and belt 26 continues to transport the material to the subsequent wrapping process of the wrapping machine. At the same time, the feeding table 3 is reset to prepare for the next batch of material to be pushed, so as to realize continuous feeding.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A light-weight sheet wrapping machine feeding mechanism, comprising a tooling table (1), characterized in that: The tooling table (1) is fixedly connected to a top plate (7). The upper middle part of the top plate (7) is equipped with an electric push rod mounting seat (5). The power input end of the electric push rod mounting seat (5) is equipped with a motor. The driven end of the electric push rod mounting seat (5) is equipped with a push-pull rod (8). The outer wall of the push-pull rod (8) is threaded with a lead screw cylinder, and the lead screw cylinder is fixedly connected to the outer wall of the feeding table (3). The side of the feeding table (3) away from the tooling table (1) is fixedly connected with a slider (4). The right side of the tooling table (1) is fixedly connected with a feeding frame, and the inner frame of the feeding frame is slidably connected to the outer wall of the slider (4). The front end of the feeding frame is provided with a feeding plate frame (6), and the side of the feeding plate frame (6) away from the feeding frame is equipped with a front frame (17).
2. The feeding mechanism of a light-weight sheet wrapping machine according to claim 1, characterized in that: The feeding frame (6) includes a horizontal bar (12) fixedly connected to the feeding frame. An adjusting block (15) is fixedly connected to the bottom of the horizontal bar (12). An mounting platform (14) is fixedly connected to the upper part of the horizontal bar (12). A stop bar (13) is installed on the upper surface of the mounting platform (14).
3. The feeding mechanism of a lightweight sheet wrapping machine according to claim 2, characterized in that: The number of the adjustment blocks (15) is two sets. The drive shafts of the two sets of adjustment blocks (15) pass through the outer wall of the electric push rod body (16) and are rotatably connected to the inner frame of the feeding frame (6).
4. The feeding mechanism of a light-weight sheet wrapping machine according to claim 1, characterized in that: A screw adjustment mechanism (22) is fixedly connected to the center of the outer wall of the front frame (17). A roller is rotatably connected to the lower part of the inner frame of the front frame (17). A crossbeam (24) is fixedly connected to the center of the inner frame of the front frame (17). A lower frame (20) is fixedly connected to the front end of the crossbeam (24). A belt frame (25) is installed at the bottom of the lower frame (20).
5. The feeding mechanism of a light-weight sheet wrapping machine according to claim 1, characterized in that: The lower part of the inner frame of the front frame (17) is equipped with crossbars, and there are two sets of crossbars. The two sets of crossbars are respectively fixedly connected to belt frame two (27) and belt frame one (25) at their close ends. Belts (26) are installed on the opposite side of belt frame one (25) and belt frame two (27).
6. The feeding mechanism of a light-weight sheet wrapping machine according to claim 4, characterized in that: A fixing block (18) is fixedly connected to the back of the crossbeam (24), and a cylinder (19) is installed on the upper part of the fixing block (18). A baffle is installed on the pushing end of the cylinder (19).