Safety guard top automatic overwrap packaging machine guard
By using a multi-folding plate design and automated drive components, the problem of the packaging machine's top protective device being unable to open and close flexibly has been solved, improving inspection and maintenance efficiency and reducing production impact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUACHENGHONGTAI INTELLIGENT EQUIP TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-03
Smart Images

Figure CN224448452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety protection equipment for packaging machinery, and in particular to a safety protection device for packaging machines with automatic top covering. Background Technology
[0002] Packaging machines are automated equipment used in industrial production to seal and package materials. They are widely used in industries such as food, pharmaceuticals, and logistics. They achieve processes such as material conveying, wrapping, and sealing through mechanical operation. Because packaging machines often have rotating parts, extrusion mechanisms, or operating openings at the top, operators are prone to injuries such as pinching or bruising if they accidentally come into contact with them. Therefore, specialized protective devices are needed to isolate hazardous areas and ensure operational safety.
[0003] In existing technologies, the protective devices on the top of some packaging machines are mostly monolithic structures, and are fixedly connected to other components of the equipment. When it is necessary to inspect, maintain, or handle material blockages on the top of the packaging machine, this monolithic protective device cannot be opened, closed, or disassembled flexibly. Operators must first painstakingly dismantle the entire protective structure before they can operate, which is not only cumbersome but also time-consuming due to the disassembly and reinstallation process, seriously affecting the normal production progress of the packaging machine. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a safety protection device for an automatic top-covering packaging machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] The safety protection device for the automatic top-covering packaging machine includes multiple folding plates connected by connecting plates. Each folding plate has a fixed frame on both sides, with an installation mechanism mounted on each frame. A screw is rotatably mounted within each fixed frame, and two screws are connected by a rotating mechanism. One fixed frame has a power mechanism connected to one of the screws. Each folding plate has two connecting frames on both sides; one connecting frame is fixedly connected to the fixed frame, and the other is connected to the screw via a moving mechanism. Both sides of the folding plates have extrusion grooves, with positioning blocks within the extrusion grooves via an extrusion mechanism. The connecting frames have positioning holes.
[0007] Preferably, the mounting mechanism includes a mounting bracket fixedly mounted on a fixed frame, and the mounting bracket is provided with mounting bolts.
[0008] Preferably, the rotating mechanism includes a synchronous pulley fixedly mounted on the screw, and the two synchronous pulleys are connected by a synchronous belt.
[0009] Preferably, the power mechanism includes a device frame fixedly mounted on a fixed frame, a servo motor mounted on the device frame, and the output shaft of the servo motor fixedly connected to one of the screws.
[0010] Preferably, the moving mechanism includes a moving frame threaded onto a screw, the end of which is fixedly connected to another connecting frame.
[0011] Preferably, the extrusion mechanism includes a spring disposed in the extrusion groove, with both ends of the spring connected to the inner wall of the extrusion groove and the outer wall of the positioning block, respectively.
[0012] The beneficial effects of this utility model are:
[0013] 1. The multi-folding plate design replaces the traditional single-piece structure. With the connection plate and drive components such as screws and moving frames, it can automatically unfold and fold. The top space of the packaging machine can be opened flexibly without disassembly, which facilitates inspection, maintenance and material handling, greatly improves the convenience of operation and reduces the impact on production progress.
[0014] 2. The installation mechanism adopts a mounting bracket with mounting bolts, which enables convenient assembly and disassembly with the packaging machine. Whether it is the initial installation or the later maintenance and replacement, it can be completed quickly, which greatly saves time and labor costs and improves maintenance efficiency.
[0015] 3. The screw is driven to rotate by a servo motor, and the synchronous operation of the two screws is achieved in conjunction with the synchronous pulley and synchronous belt, which drives the folding plate to move precisely. The whole process is automated, which not only improves the work efficiency, but also avoids the safety risks caused by human operation errors. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the safety protection device for the automatic top covering packaging machine proposed in this utility model;
[0017] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A;
[0018] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;
[0019] Figure 4 for Figure 1 A schematic diagram of the vertical section structure;
[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point C;
[0021] Figure 6 for Figure 1 A schematic diagram of the structure viewed from below;
[0022] Figure 7 A structural schematic diagram of components such as positioning blocks on a folding plate;
[0023] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point D.
[0024] In the diagram: 1 Folding plate, 2 Connecting plate, 3 Fixed frame, 4 Moving frame, 5 Mounting frame, 6 Mounting bolt, 7 Connecting frame, 8 Synchronous pulley, 9 Synchronous belt, 10 Equipment frame, 11 Servo motor, 12 Screw, 13 Extrusion groove, 14 Positioning block, 15 Spring, 16 Positioning hole. Detailed Implementation
[0025] 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.
[0026] Reference Figure 1-8 The safety protection device for the automatic top cover packaging machine includes multiple folding plates 1, which are connected by connecting plates 2. The folding plates 1 and the connecting plates 2 are rotatably connected. Each of the multiple folding plates 1 has a fixed frame 3 on both sides, with an installation mechanism mounted on the fixed frame 3. A screw 12 is rotatably mounted inside the fixed frame 3, and two screws 12 are connected by a rotating mechanism. One of the fixed frames 3 has a power mechanism connected to one of the screws 12. Each of the multiple folding plates 1 has two connecting frames 7 on both sides. One connecting frame 7 is fixedly connected to the fixed frame 3, and the other connecting frame 7 is connected to the screw 12 through a moving mechanism. Each of the two folding plates 1 has an extrusion groove 13 on both sides, with a positioning block 14 installed inside the extrusion groove 13 via an extrusion mechanism. The connecting frame 7 has a positioning hole 16.
[0027] The mounting mechanism includes a mounting bracket 5 fixedly mounted on the fixed frame 3, and mounting bolts 6 are provided on the mounting bracket 5. By using the mounting bracket 5 in conjunction with the mounting bolts 6, convenient installation and removal of the two fixed frames 3 relative to the packaging machine are achieved.
[0028] The rotating mechanism includes synchronous pulleys 8 fixedly mounted on the screws 12, and the two synchronous pulleys 8 are connected by a synchronous belt 9. The synchronous pulleys 8 and the synchronous belt 9 achieve synchronous rotation of the two screws 12 through the meshing of their teeth.
[0029] The power mechanism includes an equipment frame 10 fixedly mounted on a fixed frame 3. A servo motor 11 is mounted on the equipment frame 10, and the output shaft of the servo motor 11 is fixedly connected to one of the screws 12. The servo motor 11 is a power device that can directly drive the screw 12 connected to its output shaft to rotate after being powered on.
[0030] The moving mechanism includes a moving frame 4 threaded onto the screw 12, with its end fixedly connected to another connecting frame 7. The irregular design of the moving frame 4 is for easy connection with the screw 12 and the connecting frame 7. As shown in the figure, a portion of it is slidably connected to the fixed frame 3, and it has its own limit stop so that it will not rotate with the screw 12.
[0031] The extrusion mechanism includes a spring 15 disposed within the extrusion groove 13, with both ends of the spring 15 connected to the inner wall of the extrusion groove 13 and the outer wall of the positioning block 14, respectively. The spring 15 is a conventional component with sufficient elastic potential energy to stably extrude the positioning block 14 into the positioning hole 16 without external force intervention.
[0032] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0033] The working principle of the automatic top cover packaging machine safety device is as follows: When the protection function needs to be activated, the servo motor 11 in the power mechanism starts, and its output shaft drives the screw 12 connected to it to rotate. Under the action of the rotation mechanism, the two screws 12 rotate synchronously through the synchronous pulley 8 and the synchronous belt 9. The moving frame 4 in the moving mechanism is threadedly connected to the screw 12 and is restricted from rotating with the screw 12, so it moves along the axial direction of the screw 12. The moving frame 4 drives the end folding plate 1 to move through the connecting frame 7. Since the multiple folding plates 1 are connected by the connecting plate 2, under the pull of the end folding plate 1, the multiple folding plates 1 gradually unfold to protect the dangerous area on the top of the packaging machine.
[0034] When the protective device needs to be retracted, the servo motor 11 rotates in the reverse direction, driving the screw 12 to rotate in the reverse direction. The moving frame 4 drives the folding plate 1 to move in the reverse direction through the connecting frame 7, so that the multiple folding plates 1 can be folded and retracted.
[0035] In this design, the components such as the fixed frame 3 can be easily disassembled from the packaging machine by removing the mounting bolts 6. The folding plate 1 and the connecting frame 7 can be easily disassembled by pressing the positioning block 14 inside the positioning hole 16 to compress the spring 15 and disengage it from the positioning hole 16. This convenient disassembly and assembly of multiple components provides greater convenience for the disassembly, maintenance, and storage of the device.
[0036] 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. Safety guard for automatic covering machines for the protection of the top of the packages, comprising a plurality of folding plates (1), characterized in that, Multiple folding plates (1) are connected by connecting plates (2). Each of the multiple folding plates (1) has a fixed frame (3) on both sides. An installation mechanism is installed on the fixed frame (3). A screw (12) is rotatably installed in the fixed frame (3). Two screws (12) are connected by a rotating mechanism. One of the fixed frames (3) is provided with a power mechanism connected to one of the screws (12). Each of the multiple folding plates (1) has two connecting frames (7) on both sides. One of the connecting frames (7) is fixedly connected to the fixed frame (3). The other connecting frame (7) is connected to the screw (12) through a moving mechanism. Each of the two folding plates (1) has an extrusion groove (13) on both sides. A positioning block (14) is provided in the extrusion groove (13) through an extrusion mechanism. The connecting frame (7) has a positioning hole (16).
2. The safety guard top automatic overwrap packaging machine guard of claim 1, wherein, The installation mechanism includes a mounting bracket (5) fixedly mounted on a fixed frame (3), and the mounting bracket (5) is provided with mounting bolts (6).
3. The safety guard top automatic overwrap packaging machine guard of claim 2, wherein, The rotating mechanism includes a synchronous pulley (8) fixedly mounted on the screw (12), and the two synchronous pulleys (8) are connected by a synchronous belt (9).
4. The safety guard top automatic overwrap packaging machine guard of claim 3, wherein, The power mechanism includes an equipment frame (10) fixedly mounted on a fixed frame (3), and a servo motor (11) is provided on the equipment frame (10). The output shaft of the servo motor (11) is fixedly connected to one of the screws (12).
5. The safety guard top automatic overwrap packaging machine guard of claim 4, wherein, The moving mechanism includes a moving frame (4) threadedly mounted on a screw (12), and the end of the moving frame (4) is fixedly connected to another connecting frame (7).
6. The safety guard top automatic overwrap packaging machine guard of claim 5 wherein, The extrusion mechanism includes a spring (15) disposed in the extrusion groove (13), and the two ends of the spring (15) are respectively connected to the inner wall of the extrusion groove (13) and the outer wall of the positioning block (14).