An egg tray demoulding device
By using a power component to drive a connecting rod assembly connected to a rotating shaft in the egg tray demolding device, uniform force is applied to the rotating shaft, solving the problems of shaft bending and breakage, extending its service life, and ensuring production continuity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI PANTAO MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-26
AI Technical Summary
The rotating shaft of the existing egg tray demolding device is prone to bending, twisting or even breaking due to uneven stress after long-term use, which leads to production stoppage.
The first and second linkage assemblies, driven by a power component, are connected to both ends of the rotating shaft. Through a reducer and chain drive, the rotating shaft is subjected to uniform force, avoiding torsion and bending.
This extends the service life of the rotating shaft, ensures the continuity and stability of egg tray production, and avoids shaft breakage.
Smart Images
Figure CN224280905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of egg tray production equipment, and in particular to an egg tray demolding device. Background Technology
[0002] Egg trays are generally containers for poultry eggs, primarily consisting of trays with grooves designed to hold the eggs. They can be categorized by material (e.g., pulp trays, plastic trays) and by the number of eggs they hold (e.g., single-serving trays, tray-type trays). Currently, the vast majority of egg trays on the market are pulp trays. Pulp trays are manufactured using a molding machine. During production, pulp adheres to a mold on the molding machine. After dehydration and heating, the pulp solidifies. The molded trays need to be demolded. The demolding device uses a connecting rod to rotate a shaft, and a flap on the shaft sucks the tray from the mold. However, the shaft in the demolding device is usually connected to the connecting rod at one end. Over time, uneven stress on the shaft can cause bending and twisting, potentially leading to breakage, disrupting demolding, and forcing production to stop. Utility Model Content
[0003] The purpose of this invention is to provide an egg tray demolding device to address the shortcomings of the existing technology.
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0005] An egg tray demolding device includes a frame;
[0006] The power unit is mounted on the frame;
[0007] A rotating shaft is rotatably mounted on the frame.
[0008] A flip-plate assembly, connected to the rotating shaft, is used for demolding the egg tray;
[0009] The first link assembly has one end connected to the power assembly and the other end connected to the rotating shaft;
[0010] A connecting rod is rotatably mounted on the frame, and one end of the connecting rod is connected to the power assembly;
[0011] The second link assembly is connected at one end to the connecting rod and at the other end to the rotating shaft. The first link assembly and the second link assembly are located at the two ends of the rotating shaft, respectively.
[0012] Preferably, the power assembly includes a speed reducer, which is fixedly mounted on the frame. The speed reducer is a dual-output shaft speed reducer, with its two output shafts respectively connected to the first connecting rod assembly and the connecting rod. The input and output shafts of the speed reducer are connected to a motor.
[0013] Preferably, a drive sprocket is fixedly connected to one output shaft of the reducer, a driven sprocket is fixedly connected to one end of the connecting rod, and a chain is wound around the drive sprocket and the driven sprocket.
[0014] Preferably, the first connecting rod assembly includes a first connecting plate, one end of which is fixedly connected to an output shaft of the reducer, and the other end of which is rotatably connected to a first pull rod. The end of the first pull rod away from the first connecting plate is rotatably connected to a second connecting plate, and the end of the second connecting plate away from the first pull rod is fixedly connected to the rotating shaft.
[0015] Preferably, the second connecting rod assembly includes a third connecting plate, one end of which is fixedly connected to the connecting rod, and the other end of which is rotatably connected to a second pull rod. The end of the second pull rod away from the third connecting plate is rotatably connected to a fourth connecting plate, and the end of the fourth connecting plate away from the second pull rod is fixedly connected to the rotating shaft.
[0016] Preferably, the flip-plate assembly includes a rocker arm, one end of which is fixedly connected to the rotating shaft, and the other end of which is rotatably connected to a demolding rod. A demolding template is fixedly connected to the demolding rod, and a limit assembly is provided between the demolding rod and the frame.
[0017] Preferably, the limiting component includes a fixed frame, which is fixedly mounted on the machine frame, and a limiting shaft is fixedly mounted on the fixed frame; a limiting plate is rotatably connected to the demolding rod, and a limiting groove is formed on the limiting plate, with the limiting shaft slidably mounted in the limiting groove.
[0018] Preferably, a roller is rotatably connected to the limiting shaft, and the roller is rolled within the limiting groove.
[0019] The beneficial effects of adopting the above technical solution are as follows:
[0020] In this invention, the rotating shaft is rotatably mounted on the frame, and its two ends are respectively connected to the first connecting rod assembly and the second connecting rod assembly. Both the first connecting rod assembly and the second connecting rod assembly are driven by the power assembly to rotate the rotating shaft, so that the two ends of the rotating shaft are evenly stressed, preventing the rotating shaft from twisting, bending or breaking, thereby extending the service life of the rotating shaft and enabling the egg tray production to proceed normally. Attached Figure Description
[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0022] Figure 2 This is a three-dimensional schematic diagram of the present invention from another angle;
[0023] Figure 3 This is a three-dimensional schematic diagram of the frame of this utility model;
[0024] Figure 4 This is a partial three-dimensional structural schematic diagram of this utility model;
[0025] Figure 5 This is a three-dimensional schematic diagram of the flip panel component of this utility model.
[0026] In the diagram: 1 is the frame, 2 is the rotating shaft, 3 is the connecting rod, 4 is the reducer, 5 is the motor, 6 is the driving sprocket, 7 is the driven sprocket, 8 is the chain, 9 is the first connecting plate, 10 is the first tie rod, 11 is the second connecting plate, 12 is the third connecting plate, 13 is the second tie rod, 14 is the fourth connecting plate, 15 is the rocker arm, 16 is the demolding rod, 17 is the demolding template, 18 is the fixing frame, 19 is the limiting shaft, 20 is the limiting plate, 21 is the limiting groove, 22 is the connecting frame, 23 is the first connecting pipe, and 24 is the second connecting pipe. Detailed Implementation
[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] like Figure 1 and Figure 2 As shown, an egg tray demolding device includes a frame 1, which is fixedly mounted on the ground. A power component and a rotating shaft 2 are mounted on the frame 1. The rotating shaft 2 is horizontally mounted and rotatably connected to the frame 1. A first connecting rod assembly and a second connecting rod assembly are respectively connected to both ends of the rotating shaft 2. The first connecting rod assembly is also connected to the power component, and the power component drives the rotating shaft 2 to rotate through the first connecting rod assembly. The second connecting rod assembly is also connected to a connecting rod 3, which is horizontally mounted and rotatably connected to the frame 1. The end of the connecting rod 3 away from the second connecting rod assembly is also connected to the power component. A flip-plate assembly is also connected to the rotating shaft 2 for demolding the egg tray. In this invention, the power assembly drives the rotating shaft 2 to rotate on the frame 1 via the first connecting rod assembly. Simultaneously, the power assembly also drives the connecting rod 3 to rotate on the frame 1. While the connecting rod 3 is rotating, it can drive the rotating shaft 2 to rotate on the frame 1 via the second connecting rod assembly. Since the first and second connecting rod assemblies are respectively connected to both ends of the rotating shaft 2, and both the first and second connecting rod assemblies are driven by the power assembly, the rotating shaft 2 can be evenly stressed at both ends during rotation, avoiding twisting, bending, or bending caused by stress on one end of the rotating shaft 2. This extends the service life of the rotating shaft 2 and allows egg tray production to continue continuously for a long time.
[0031] Furthermore, the power assembly includes a reducer 4, which is fixedly mounted on the frame 1. The reducer 4 is a dual-output shaft reducer, therefore it has two output shafts and one input shaft, and the two output shafts can rotate synchronously. The two output shafts of the reducer 4 are respectively connected to the first connecting rod assembly and the connecting rod 3. The input and output shafts of the reducer 4 are connected to a motor 5. In this embodiment, the output shaft of the motor 5 is fixedly connected to the input shaft of the reducer 4. The motor 5 can drive the two output shafts of the reducer 4 to rotate synchronously. One of the output shafts of the reducer 4 is connected to the first connecting rod assembly, and the other output shaft is connected to one end of the connecting rod 3. The other end of the connecting rod 3 is connected to the second connecting rod assembly. Therefore, the reducer 4 can drive the first connecting rod assembly and the second connecting rod assembly to move synchronously, so that the rotating shaft 2 rotates on the frame 1, thereby realizing the demolding of the egg tray.
[0032] Furthermore, to enable the reducer 4 to drive the connecting rod 3 to rotate on the frame 1, a drive sprocket 6 is fixedly connected to one output shaft of the reducer 4. Therefore, the drive sprocket 6 can rotate synchronously with the output shaft of the reducer 4. A driven sprocket 7 is fixedly connected to one end of the connecting rod 3, and the other end of the connecting rod 3 is connected to the second linkage assembly. A chain 8 is wound around the drive sprocket 6 and the driven sprocket 7. In this embodiment, the reducer 4 drives the drive sprocket 6 to rotate, and through the transmission of the chain 8, it drives the driven sprocket 7 to rotate, thereby causing the connecting rod 3 to rotate. This, in turn, drives the rotating shaft 2, which is connected to the connecting rod 3 via the second linkage assembly, to rotate, thus demolding the egg tray.
[0033] Furthermore, such as Figure 4 As shown, the first linkage assembly includes a first connecting plate 9. One end of the first connecting plate 9 is fixedly connected to an output shaft of the reducer 4, and the other end of the first connecting plate 9 is rotatably connected to a first pull rod 10. The end of the first pull rod 10 away from the first connecting plate 9 is rotatably connected to a second connecting plate 11, and the end of the second connecting plate 11 away from the first pull rod 10 is fixedly connected to a rotating shaft 2. In this embodiment, when the output shaft of the reducer 4 rotates, it drives the first connecting plate 9 to rotate, causing the first connecting plate 9 to rotate around the output shaft of the reducer 4. One end of the first pull rod 10 is rotatably connected to the first connecting plate 9, and the other end of the first pull rod 10 is rotatably connected to the second connecting plate 11. At the same time, the second connecting plate 11 is also fixedly connected to one end of the rotating shaft 2. Therefore, the rotating shaft 2 can rotate on the frame 1, and the rotating shaft 2 can reciprocate within a rotation angle range of 90°, allowing the flip-plate assembly to remove the egg tray.
[0034] Furthermore, the second linkage assembly includes a third connecting plate 12. One end of the third connecting plate 12 is fixedly connected to the connecting rod 3, and the other end of the third connecting plate 12 is rotatably connected to a second pull rod 13. The end of the second pull rod 13 away from the third connecting plate 12 is rotatably connected to a fourth connecting plate 14, and the end of the fourth connecting plate 14 away from the second pull rod 13 is fixedly connected to the rotating shaft 2. In this embodiment, the second linkage assembly has the same structure as the first linkage assembly, and therefore the same mode of motion. One end of the third connecting plate 12 is fixedly connected to the connecting rod 3. When the connecting rod 3 rotates, it can drive the third connecting plate 12 to rotate around the connecting rod 3 as the center. At the same time, one end of the second pull rod 13 is rotatably connected to the third connecting plate 12, and the other end is rotatably connected to the fourth connecting plate 14. The fourth connecting plate 14 is also fixedly connected to one end of the rotating shaft 2. The second linkage assembly can work together with the first linkage assembly to drive the rotating shaft 2 to rotate on the frame 1, so that the rotating shaft 2 is subjected to balanced force.
[0035] Furthermore, such as Figure 5As shown, the flip-plate assembly includes a rocker arm 15, one end of which is fixedly connected to the rotating shaft 2, and the other end of which is rotatably connected to a demolding rod 16. A demolding template 17 is fixedly connected to the demolding rod 16, and a limit assembly is provided between the demolding rod 16 and the frame 1. In this embodiment, since the rotating shaft 2 can reciprocate within a 90° range on the frame 1, the demolding template 17 rotates within a 90° range along with the rotating shaft 2. That is, when the template 17 is in a vertical state, it can pick up the egg tray on the molding machine and place it on the demolding template 17. Then, the template 17 rotates downward with the rotating shaft 2 until it reaches a horizontal state, and the egg tray falls off the demolding template 17.
[0036] Furthermore, a connecting frame 22 is provided between the template 17 and the demolding rod 16. The connecting frame 22 is fixedly mounted on the demolding rod 16, and the other end of the connecting frame 22 is fixedly connected to the template 17, thereby enabling a fixed connection between the template 17 and the demolding rod 16.
[0037] Furthermore, the ejector plate 17 has an internal cavity, and the support plate 17 has multiple suction holes on the side facing the forming machine. A first connecting pipe 23 and a second connecting pipe 24 are connected to the ejector plate 17. One end of the first connecting pipe 23 and one end of the second connecting pipe 24 are connected to the internal cavity of the support plate 17. Both the first connecting pipe 23 and the second connecting pipe 24 are equipped with solenoid valves to control their on / off state. The other end of the first connecting pipe 23 is connected to a vacuum pump, and the other end of the second connecting pipe 24 is connected to a blower. When the support plate 17... When demolding in the forming and vertical position, the first connecting pipe 23 is opened and the second connecting pipe 24 is closed. The vacuum pump draws a vacuum into the internal cavity of the demolding template 17 through the first connecting pipe 23, so that the egg tray on the forming machine is firmly attached to the template 17. Then the template 17 rotates downward with the rotating shaft 2 to a horizontal position. At this time, the first connecting pipe 23 is closed and the second connecting pipe 24 is opened. The blower blows air into the internal cavity of the template 17 through the second connecting pipe 24. The air blown into the cavity is finally discharged from the suction hole, blowing the egg tray attached to the template 17 off.
[0038] Furthermore, the limiting component includes a fixed frame 18, which is fixedly mounted on the frame 1, and a limiting shaft 19 is fixedly mounted on the fixed frame 18; a limiting plate 20 is rotatably connected to the demolding rod 16, and a limiting groove 21 is formed on the limiting plate 20, with the limiting shaft 19 slidably disposed in the limiting groove 21; in this embodiment, the limiting component can limit the rotation range of the demolding template 17, so that the tray template 17 can reciprocate within a 90° range between the horizontal and vertical states. When the demolding template 17 is in the vertical state and takes the egg tray off the molding machine, the limiting plate 20 is in the horizontal state; conversely, when the tray template 17 is in the horizontal state and puts down the egg tray, the limiting plate 20 is in the vertical state.
[0039] Furthermore, a roller is rotatably connected to the limiting shaft 18, and the roller is rolled within the limiting groove 21, which can reduce frictional resistance and reduce wear.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An egg tray demoulding apparatus, characterised in that, Including rack (1); The power unit is mounted on the frame (1); A rotating shaft (2) is rotatably mounted on the frame (1); The flip-plate assembly is connected to the rotating shaft (2) and is used for demolding the egg tray; The first link assembly is connected at one end to the power assembly and at the other end to the rotating shaft (2); A connecting rod (3) is rotatably mounted on the frame (1), and one end of the connecting rod (3) is connected to the power assembly; The second link assembly is connected at one end to the connecting rod (3) and at the other end to the rotating shaft (2). The first link assembly and the second link assembly are located at the two ends of the rotating shaft (2), respectively.
2. The egg tray demolding device according to claim 1, characterized in that, The power assembly includes a speed reducer (4), which is fixedly mounted on the frame (1). The speed reducer (4) is a dual-output shaft speed reducer. The two output shafts of the speed reducer (4) are respectively connected to the first connecting rod assembly and the connecting rod (3). The input and output shafts of the speed reducer (4) are connected to a motor (5).
3. The egg tray demolding device according to claim 2, characterized in that, A drive sprocket (6) is fixedly connected to one output shaft of the reducer (4), and a driven sprocket (7) is fixedly connected to one end of the connecting rod (3). A chain (8) is wound around the drive sprocket (6) and the driven sprocket (7).
4. The egg tray demolding device according to claim 2, characterized in that, The first connecting rod assembly includes a first connecting plate (9), one end of which is fixedly connected to an output shaft of the reducer (4), and the other end of the first connecting plate (9) is rotatably connected to a first pull rod (10). The end of the first pull rod (10) away from the first connecting plate (9) is rotatably connected to a second connecting plate (11), and the end of the second connecting plate (11) away from the first pull rod (10) is fixedly connected to the rotating shaft (2).
5. The egg tray demolding device according to claim 2, characterized in that, The second connecting rod assembly includes a third connecting plate (12), one end of which is fixedly connected to the connecting rod (3), and the other end of which is rotatably connected to a second pull rod (13). The end of the second pull rod (13) away from the third connecting plate (12) is rotatably connected to a fourth connecting plate (14), and the end of the fourth connecting plate (14) away from the second pull rod (13) is fixedly connected to the rotating shaft (2).
6. The egg tray demolding device according to claim 1, characterized in that, The flip plate assembly includes a rocker arm (15), one end of which is fixedly connected to the rotating shaft (2), and the other end of which is rotatably connected to a demolding rod (16). A demolding template (17) is fixedly connected to the demolding rod (16), and a limit assembly is provided between the demolding rod (16) and the frame (1).
7. The egg tray demolding device according to claim 6, characterized in that, The limiting component includes a fixed frame (18), which is fixedly mounted on the frame (1). A limiting shaft (19) is fixedly mounted on the fixed frame (18). A limiting plate (20) is rotatably connected to the demolding rod (16). A limiting groove (21) is opened on the limiting plate (20), and the limiting shaft (19) is slidably mounted in the limiting groove (21).
8. The egg tray demolding device according to claim 7, characterized in that, A roller is rotatably connected to the limiting shaft (19), and the roller is rolled within the limiting groove (21).