A clamping mechanism for forming aluminum foil lunch box packaging
By designing a limiting post, a limiting ring, and a transverse pin, the problem of low efficiency in replacing the clamping plate in traditional clamping mechanisms is solved, enabling rapid disassembly and assembly and uniform force distribution, thereby improving production efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI BOERTE ALUMINUM PROD CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional clamping mechanisms require loosening bolts one by one when changing clamping plates of different specifications, resulting in long downtime and low production efficiency.
The design incorporates a detachable structure with limiting posts, limiting rings, and transverse pins, combined with an electric push rod and a baffle plate, enabling quick replacement and installation of the clamping plate.
It enables quick assembly and disassembly of the clamping plate, avoids the use of tools, improves replacement efficiency, ensures uniform stress on materials, and enhances production efficiency and finished product quality.
Smart Images
Figure CN224277854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressing mechanism technology, and in particular to a pressing mechanism for forming aluminum foil lunch box packaging. Background Technology
[0002] In the food packaging industry, molded aluminum foil lunch boxes are widely used in takeout containers, baking molds, and other fields due to their lightweight, high-temperature resistance, and recyclability. To ensure good sealing of the lunch boxes during transportation or storage, a pressing mechanism is needed to pressurize their edges, making the aluminum foil tightly adhere to the lid or sealing film. In traditional pressing mechanisms, the pressing plate is usually directly fixed to the bottom of the moving base (or drive component) with multiple sets of bolts. When it is necessary to replace the pressing plate with different specifications (such as shape and size) to adapt to different models of aluminum foil lunch boxes, the bolts must be loosened one by one and the pressing plate must be removed, which requires the use of tools, resulting in excessive downtime and low production efficiency.
[0003] Therefore, in order to address this problem, this utility model provides a pressing mechanism for forming aluminum foil lunch box packaging. Utility Model Content
[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a pressing mechanism for forming aluminum foil lunch box packaging.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressing mechanism for forming aluminum foil lunch box packaging, comprising a processing frame, a baffle plate symmetrically and movably connected to the inner bottom of the processing frame, an electric push rod installed on the top of the processing frame, a movable seat provided at the bottom of the electric push rod, a pressing plate movably connected to the bottom of the movable seat, a top seat provided on the top of the pressing plate, limit posts symmetrically provided on the top of the top seat, limit rings symmetrically installed on the top of the movable seat, and a transverse pin rod threadedly connected between the limit posts and the limit rings, forming a pressing space between the two baffle plates and the processing frame.
[0006] Preferably, the bottom of the processing frame is provided with symmetrical side slots on both sides, and the side slots are slidably connected to the baffle plate.
[0007] Preferably, a pull handle is provided on one side of the shield, and the pull handle is used for pulling.
[0008] Preferably, one end of the transverse pin that passes through the limiting post is connected to a limiting sleeve via a thread, the limiting sleeve being used for limiting.
[0009] Preferably, the top of the movable seat is symmetrically provided with slide rods, and the top of the processing frame is provided with a slide groove that matches the slide rods.
[0010] Compared with the prior art, this utility model provides a pressing mechanism for forming aluminum foil lunch box packaging, which has the following beneficial effects:
[0011] 1. This forming aluminum foil lunch box packaging clamping mechanism uses a limiting post on the top seat to align with a limiting ring on the moving seat. A horizontal pin passes through both the limiting post and the limiting ring, and then the horizontal pin is threaded through both. Finally, a limiting sleeve and a threaded lock are used to secure the horizontal pin. This detachable structure allows for tool-free disassembly and assembly of the clamping plate, enabling quick replacement and installation without affecting performance.
[0012] 2. The pressing mechanism for this molded aluminum foil lunch box packaging uses the positional cooperation between the baffle plate and the pressing plate. The baffle plate fits against the edge of the material to form a limiting boundary, and the pressing plate maintains a fixed distance from the baffle plate when it is pressed down. The double constraint ensures that the material is subjected to uniform force, completely eliminates pressing displacement, ensures stable finished product quality, and avoids material displacement during pressing, which would affect the use effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a pressing mechanism for forming aluminum foil lunch box packaging proposed in this utility model;
[0014] Figure 2 This is a side view of the structure of a pressing mechanism for forming aluminum foil lunch box packaging proposed in this utility model;
[0015] Figure 3 This utility model proposes a pressing mechanism for forming aluminum foil lunch box packaging. Figure 1 Enlarged view of area A in the middle.
[0016] In the diagram: 1. Processing frame; 101. Side slot; 2. Cover plate; 201. Pull handle; 3. Electric push rod; 4. Moving seat; 5. Pressing plate; 6. Top seat; 7. Limiting post; 8. Limiting ring; 9. Horizontal pin rod; 10. Limiting sleeve; 11. Slide rod. Detailed Implementation
[0017] 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.
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] Reference Figures 1-3 A pressing mechanism for forming aluminum foil lunch box packaging includes a processing frame 1. The processing frame 1 has symmetrically movably connected baffle plates 2 at its inner bottom. An electric push rod 3 is mounted on the top of the processing frame 1. A movable seat 4 is located at the bottom of the electric push rod 3. A pressing plate 5 is movably connected to the bottom of the movable seat 4. A top seat 6 is located on the top of the pressing plate 5. Limiting posts 7 are symmetrically arranged on the top of the top seat 6. Limiting rings 8 are symmetrically installed on the top of the movable seat 4. A transverse pin 9 is threadedly connected between the limiting posts 7 and the limiting rings 8. A pressing space is formed between the two baffle plates 2 and the processing frame 1. The processing frame 1 is made of stainless steel. The frame 1 is slidably connected to form a pressing space. The electric push rod 3 is fixed to the top center of the processing frame 1, and its output end is connected to the movable seat 4. The bottom of the movable seat 4 is movably connected to the pressing plate 5. The pressing plate 5 is made of aluminum alloy and the surface is covered with an anti-stick coating. The top seat 6 is welded to the top of the pressing plate 5. Two limiting posts 7 are symmetrically arranged on its top. The corresponding position of the top of the movable seat 4 is installed with the limiting ring 8. The horizontal pin rod 9 passes through the limiting posts 7 and the limiting ring 8 and is fixed by the thread. The electric push rod 3 drives the movable seat 4 to press down. The pressing plate 5 applies uniform pressure to the aluminum foil lunch box. The baffle plate 2 restricts the displacement of the lunch box to ensure that the lunch box is accurately positioned during the pressing process and avoids displacement or deformation.
[0020] In the structural design of the processing frame 1, the bottom two sides are precision machined to symmetrically open two side slots 101. These two side slots 101 have extremely high dimensional accuracy and perfectly match the two sides of the baffle plate 2 to form a sliding connection. The baffle plate 2 is made of wear-resistant and smooth material. After being inserted into the side slot 101, it can slide quickly along the slot without any obstruction. The operator only needs to gently push and pull the baffle plate 2, and it can move smoothly in the side slot 101. Without complicated operations or the need for additional labor, the baffle plate 2 can be quickly replaced, which greatly improves the flexibility and efficiency of the equipment and effectively avoids the problem of production progress being affected by inconvenient replacement.
[0021] The outer side of the baffle plate 2 is fixed with a pull handle 201 by bolts. The handle is made of cylindrical stainless steel and covered with a non-slip rubber sleeve, which makes it easy for operators to manually adjust the position of the baffle plate 2. Pulling the handle 201 provides a point of force, and operators can quickly pull the baffle plate 2 to adjust the clamping space, improving the ease of operation of the equipment. At the same time, the non-slip rubber sleeve prevents the hands from slipping.
[0022] One end of the transverse pin 9 is carefully designed with a standard external thread. The thread profile is regular and the pitch is precise, laying the foundation for a stable connection. The matching limiting sleeve 10 is made of high-quality stainless steel, which has high strength and corrosion resistance. It has fine internal threads that perfectly match the external threads of the transverse pin 9. After the initial connection between the clamping plate 5 and the moving seat 4 is completed, the transverse pin 9 is passed through the limiting post 7 and the limiting ring 8. Then, the limiting sleeve 10 is slowly rotated to move smoothly along the external threads of the transverse pin 9 until the end face of the limiting sleeve 10 is tightly fitted with the end face of the limiting post 7. At this time, the strong friction and mechanical interlocking force between the threads achieve a firm locking and fixing. During the operation, the limiting sleeve 10 acts like a solid guardian, effectively preventing the transverse pin 9 from loosening or falling off due to vibration or external force, ensuring that the clamping plate 5 and the moving seat 4 always maintain a stable connection, and providing a reliable guarantee for the accurate and efficient clamping operation.
[0023] Two sliding rods 11 are welded to the top of the movable seat 4. A straight sliding groove is opened at the corresponding position on the top of the processing frame 1. A copper alloy bushing is embedded in the sliding groove. The sliding rods 11 and the sliding groove are fitted with a clearance. The sliding rods 11 and the sliding groove restrict the movement trajectory of the movable seat 4, prevent the movable seat 4 from deflecting when driven by the electric push rod 3, ensure that the pressing plate 5 is pressed down vertically, and improve the pressing accuracy and equipment stability.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pressing mechanism for forming aluminum foil lunch box packaging, comprising a processing frame (1), characterized in that, The bottom of the processing frame (1) is symmetrically connected to a baffle plate (2). An electric push rod (3) is installed on the top of the processing frame (1). A movable seat (4) is provided at the bottom of the electric push rod (3). A pressure plate (5) is movably connected to the bottom of the movable seat (4). A top seat (6) is provided on the top of the pressure plate (5). A limit post (7) is symmetrically provided on the top of the top seat (6). A limit ring (8) is symmetrically installed on the top of the movable seat (4). A transverse pin rod (9) is threadedly connected between the limit post (7) and the limit ring (8). A pressing space is formed between the two baffle plates (2) and the processing frame (1).
2. The pressing mechanism for forming aluminum foil lunch box packaging according to claim 1, characterized in that, The processing rack (1) has symmetrical side slots (101) on both sides of its bottom, and the side slots (101) are slidably connected to the baffle plate (2).
3. The pressing mechanism for forming aluminum foil lunch box packaging according to claim 1, characterized in that, A pull handle (201) is provided on one side of the shield (2), and the pull handle (201) is used for pulling.
4. The pressing mechanism for forming aluminum foil lunch box packaging according to claim 1, characterized in that, The transverse pin (9) passes through one end of the limiting post (7) and is connected to a limiting sleeve (10) by a thread. The limiting sleeve (10) is used for limiting.
5. The pressing mechanism for forming aluminum foil lunch box packaging according to claim 1, characterized in that, The top of the movable seat (4) is symmetrically provided with slide rods (11), and the top of the processing frame (1) is provided with a slide groove that matches the slide rods (11).