Cylinder ejection mechanism and aluminum shell stretching device

Abstract

This utility model belongs to the field of battery manufacturing technology and discloses a cylinder ejection mechanism and an aluminum shell stretching device. The cylinder ejection mechanism includes a cylinder, a feeding structure, an air supply component, and a first pressure detection component. The ejection rod of the cylinder is connected to the feeding structure, which is used to stretch the aluminum shell. The air supply component is connected to the cylinder and is used to supply air with a certain pressure to the cylinder. The first pressure detection component is disposed on the cylinder and is used to detect the ejection pressure of the cylinder. This cylinder ejection mechanism is used to stretch and form the aluminum shell, and can detect cylinder leakage in a timely manner during use, enabling timely alarm and maintenance, avoiding poor aluminum shell quality, and improving production quality.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a cylinder ejection mechanism and an aluminum shell stretching device. Background Technology

[0002] In battery structure, the aluminum casing plays a crucial role as a protective structure for the battery cell. The manufacturing process of the aluminum casing often involves stretching and shaping it using an aluminum casing stretching device.

[0003] Existing aluminum shell stretching devices often use a single-cylinder ejection mechanism to stretch the aluminum shell. However, under normal circumstances, the working air pressure required for the normal ejection force of the aluminum shell is between 0.4 MPa and 0.5 MPa. Since the single cylinder bears the ejection pressure alone, its stress increases, leading to a shortened cylinder lifespan. Furthermore, when the cylinder leaks air, the ejection pressure cannot be guaranteed, resulting in unstable stretching quality and affecting the forming of the aluminum shell. The existing single-cylinder ejection mechanism's leak detection point is on the connected air tank. In the case of a minor leak in the single cylinder, the leak is not noticeable, and the pressure change in the air tank is small, remaining within the error range. This prevents operators from promptly noticing the cylinder leak, causing the cylinder to continue operating and weakening the actual output ejection force, thus affecting the product forming quality.

[0004] Therefore, there is an urgent need for a cylinder ejection mechanism and an aluminum shell stretching device to solve the above-mentioned technical problems. Utility Model Content

[0005] One objective of this invention is to provide a cylinder ejection mechanism that can detect cylinder leakage in a timely manner during the aluminum shell stretching process, and promptly perform alarm maintenance to avoid poor aluminum shell quality and improve production quality.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The cylinder ejection mechanism includes:

[0008] The cylinder has an ejector rod connected to a feeding structure, which is used to stretch the aluminum shell.

[0009] An air supply assembly is connected to the cylinder and is used to supply air with a certain pressure to the cylinder.

[0010] A first pressure detection element is disposed on the cylinder and is used to detect the ejection pressure of the cylinder.

[0011] Optionally, the above-mentioned gas supply components include:

[0012] Air source, the aforementioned air source is used to supply air with a certain pressure;

[0013] An air storage tank, one end of which is connected to an air source and the other end of which is connected to a cylinder, is used to store and supply air with a certain pressure to the cylinder.

[0014] Optionally, the gas storage tank is provided with a second pressure detection device, which is used to detect the gas pressure inside the gas storage tank.

[0015] Optionally, both the first pressure detection element and the second pressure detection element are pressure sensors.

[0016] Optionally, the gas supply assembly further includes a solenoid valve, which is disposed on the pipeline connecting the air source and the gas storage tank, and is used to control the on / off connection between the air source and the gas storage tank.

[0017] Optionally, it also includes a control structure, wherein the solenoid valve, the first pressure sensing element, and the second pressure sensing element are all electrically connected to the control structure.

[0018] Optionally, it also includes an alarm, which is electrically connected to the control structure and is used to emit an alarm sound.

[0019] Optionally, it also includes a mounting component on which the body of the cylinder is mounted.

[0020] Optionally, two cylinders are provided, both of which are connected to the air supply assembly, and the ejector rods of both cylinders are connected to the feeding structure. The air supply assembly is used to supply air at the same pressure to the two cylinders so that the two cylinders can operate synchronously.

[0021] Another objective of this invention is to provide an aluminum shell stretching device, including the aforementioned cylinder ejection mechanism.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a cylinder ejection mechanism and an aluminum shell stretching device. By setting a first pressure detection element on the cylinder, the ejection pressure of the cylinder can be detected. This allows for timely detection of the cylinder when the ejection pressure exceeds the working range, preventing insufficient ejection force of the cylinder ejection mechanism due to air leakage, thus avoiding impact on product quality and improving product molding quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the cylinder ejection mechanism provided in a specific embodiment of this utility model;

[0025] Figure 2 This is a front view of the cylinder ejection mechanism provided in a specific embodiment of this utility model;

[0026] Figure 3 This is a side sectional view of the cylinder ejection mechanism provided in a specific embodiment of this utility model.

[0027] In the picture:

[0028] 1. Place the work surface on the upper surface;

[0029] 10. Cylinder; 11. Ejector rod; 12. Body section;

[0030] 20. Material feeding structure;

[0031] 30. Air supply assembly; 31. Air source; 32. Air tank; 33. Solenoid valve; 34. Check valve; 35. Silencer; 36. Pressure gauge; 37. Safety valve; 38. Ball valve;

[0032] 40. First pressure testing component; 50. Second pressure testing component; 60. Mounting component; 61. Mounting surface. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Please refer to Figures 1 to 3 This invention introduces the cylinder ejection mechanism and aluminum shell stretching device provided by this utility model.

[0038] This embodiment provides a cylinder ejection mechanism for stretching and forming an aluminum shell, and can detect air leakage in cylinder 10, promptly triggering an alarm and performing maintenance to avoid poor aluminum shell quality and improve production quality.

[0039] Please refer to Figures 1 to 3 Specifically, the cylinder ejection mechanism includes a cylinder 10, a feeding structure 20, an air supply assembly 30, and a first pressure detection element 40. The ejection rod 11 of the cylinder 10 is connected to the feeding structure 20, which is used to stretch the aluminum shell. The air supply assembly 30 is connected to the cylinder 10 and is used to supply air with a certain pressure to the cylinder 10. The first pressure detection element 40 is disposed on the cylinder 10 and is used to detect the ejection pressure of the cylinder 10.

[0040] In this embodiment, the cylinder ejection mechanism can detect the ejection pressure of the cylinder 10 by setting a first pressure detection element 40 on the cylinder 10. This allows the cylinder 10 to be detected in time when the ejection pressure exceeds the working range (generally 0.4MPa to 0.5MPa), thus avoiding insufficient ejection force of the cylinder ejection mechanism due to air leakage, avoiding impact on product quality, and improving product molding quality.

[0041] Optionally, two cylinders 10 are provided, both connected to the air supply assembly 30, and the ejector rods 11 of both cylinders 10 are connected to the feeding structure 20. The air supply assembly 30 supplies air at the same pressure to both cylinders 10, so that the two cylinders 10 operate synchronously. This arrangement increases the volume of air flowing from the air supply device to the cylinders 10 per unit time, so that even if a slight leak occurs in a single cylinder 10, the second pressure detection element 50 in the corresponding air supply assembly 30 (described below) will undergo a significant change, thereby further improving the sensitivity of pressure detection. It also alleviates the load on the ejector force of a single cylinder 10 and improves the service life of the cylinders 10.

[0042] Specifically, the cylinder 10 includes a body part 12 and an ejector rod 11. The ejector rod 11 can slide along its own axis and be connected to the body part 12 under the action of air pressure, so as to realize the linear reciprocating motion of the ejector rod 11, thereby driving the feeding structure 20. The feeding structure 20 is connected to the upper worktable 1, so as to drive the movement of the upper worktable 1, thereby ensuring that stretching can be performed when the aluminum shell is installed in the corresponding working position.

[0043] Optionally, the cylinder ejection mechanism also includes a mounting member 60, on which the body portion 12 of the cylinder 10 is mounted, thereby enabling the mounting of the body portion 12.

[0044] Alternatively, the mounting component 60 has two mounting surfaces 61 arranged opposite to each other, and the two cylinders 10 are respectively mounted on the two mounting surfaces 61, which can realize the installation of the cylinders 10 and also allow the two cylinders 10 to be spaced apart and output synchronously.

[0045] Specifically, the air supply assembly 30 includes an air source 31 and an air storage tank 32. The air source 31 supplies air at a certain pressure. One end of the air storage tank 32 is connected to the air source 31, and the other end is connected to the cylinder 10. The air storage tank 32 stores and supplies air at a certain pressure to the cylinder 10. By supplying air at a certain pressure through the air source 31, the air storage tank 32 can store a portion of the air, ensuring a continuous supply of air to the cylinder 10. This avoids insufficient air supply due to high demand and improves the reliability of the cylinder ejection mechanism.

[0046] Optionally, the air tank 32 is equipped with a second pressure detection element 50, which is used to detect the air pressure inside the air tank 32. Since the air tank 32 is connected to the cylinder 10, the first pressure detection element 40 and the second pressure detection element 50 work together to better and faster detect whether there is an air leakage problem in the cylinder 10. At the same time, when the pressure inside the air tank 32 is too high, the second pressure detection element 50 can also detect it and take corresponding measures, improving the safety and reliability of the cylinder ejection mechanism during use.

[0047] Optionally, both the first pressure detection element 40 and the second pressure detection element 50 are pressure sensors. These pressure sensors offer high accuracy and stability, and are small in size and easy to install. In use, the pressure sensor is installed on the corresponding mounting structure, and the detection part of the pressure sensor is placed in the space to be detected, thereby enabling pressure detection.

[0048] Optionally, in this embodiment, the working pressure range of the first pressure detection element 40 and the working range of the second pressure detection element 50 are both 0.4MPa to 0.5MPa.

[0049] In use, since both cylinders 10 are connected to the air tank 32, the amount of gas flowing out of the air tank 32 per unit time increases. Therefore, when at least one of the two cylinders 10 leaks, the pressure value in the air tank 32 will also change significantly. That is, the pressure value detected by the second pressure detection element 50 will change significantly, so that the ejection pressure of the cylinder ejection mechanism can be monitored in a timely manner.

[0050] More specifically, the air supply assembly 30 also includes a solenoid valve 33, which is installed on the pipeline connecting the air source 31 and the air tank 32. The solenoid valve 33 is used to control the on / off connection between the air source 31 and the air tank 32, and can also regulate the pressure inside the air tank 32. When the second pressure detection element 50 detects, the air supply channel of the solenoid valve 33 opens to supply air when the pressure is below the working pressure range, and the exhaust channel of the solenoid valve 33 opens to exhaust air when the pressure is above the working pressure range. When the pressure is within the working pressure range, the valve closes, thus realizing the control of the air pressure inside the air tank 32.

[0051] Optionally, the solenoid valve 33 is a three-position three-way solenoid valve, which can achieve the control effect of the solenoid valve 33 mentioned above, and has high precision and long service life.

[0052] Optionally, the air supply assembly 30 also includes a one-way valve 34, which is disposed on the pipeline between the solenoid valve 33 and the air source 31. The one-way valve 34 is used to control the air flow direction to avoid backflow and improve the safety of the air source 31.

[0053] More specifically, the air supply assembly 30 also includes a silencer 35, which is disposed on the exhaust passage of the solenoid valve 33. The silencer 35 is used to reduce the noise generated when the air tank 32 is depressurized, so as to avoid causing industrial noise.

[0054] More specifically, the gas supply assembly 30 also includes a pressure gauge 36, which is installed on the gas storage tank 32. The pressure gauge 36 allows operators to directly read the pressure value of the gas storage tank 32, so as to facilitate maintenance and inspection by the operators.

[0055] More specifically, the air supply assembly 30 also includes a safety valve 37, which is disposed on the air storage tank 32. The safety valve 37 is used to ensure the safety of the pressure system, prevent accidents, and improve the safety and reliability of the cylinder ejection mechanism.

[0056] More specifically, the air supply assembly 30 also includes a ball valve 38, which is located at the bottom of the air tank 32. During maintenance and repair, the air tank 32 needs to be drained to ensure the environment and pressure inside the air outlet pipe and avoid affecting the ejection pressure of the cylinder 10.

[0057] Specifically, the cylinder ejection mechanism also includes a control structure. The solenoid valve 33, the first pressure detection element 40, and the second pressure detection element 50 are all electrically connected to the control structure. The control structure can control the opening and closing of the solenoid valve 33 and obtain the pressure values ​​detected by the first pressure detection element 40 and the second pressure detection element 50, so as to control the internal pressure of the cylinder ejection mechanism.

[0058] In use, when the pressure value detected by the first pressure detection element 40 is not within the working pressure range, the control structure will check whether the pressure value detected by the second pressure detection element 50 is within the working pressure range. By checking whether the two pressure values ​​are within the working pressure range, it can be determined whether the cylinder 10 has problems such as air leakage. This allows the control of the opening and closing of the solenoid valve 33 or the opening or closing of the exhaust passage and air intake passage corresponding to the solenoid valve 33, thereby controlling whether the cylinder ejection mechanism needs to be stopped for maintenance. This enables the cylinder ejection mechanism to detect whether it is leaking, improving the reliability of the gas during the stretching of the aluminum shell.

[0059] It is understandable that this control structure can be controlled by a control system such as a PLC (Programmable Logic Controller) to achieve instruction-based control and execution. This is a common technique in this field and will not be elaborated here.

[0060] More specifically, the cylinder ejection mechanism also includes an alarm, which is electrically connected to the control structure. The alarm is used to emit an alarm sound. That is, when the control structure determines that there is a problem with the ejection pressure of cylinder 10, it can send an opening signal to the alarm, causing it to emit an alarm sound, thereby reminding the operator of the malfunction and to perform maintenance.

[0061] This embodiment also provides an aluminum shell stretching device, including the cylinder ejection mechanism described in any of the above-mentioned solutions. By employing this cylinder ejection mechanism, the ejection force of the cylinder ejection mechanism is kept within the working pressure range during aluminum shell stretching, thereby ensuring the consistency of aluminum shell forming and improving the forming quality of the aluminum shell.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Cylinder ejection mechanism, characterized in that include: Cylinder (10), the ejector rod (11) of the cylinder (10) is connected to the feeding structure (20), the feeding structure (20) is used to stretch the aluminum shell; An air supply assembly (30) is connected to the cylinder (10) and is used to supply air with a certain pressure to the cylinder (10); A first pressure detection element (40) is disposed on the cylinder (10) and is used to detect the ejection pressure of the cylinder (10).

2. The cylinder ejector mechanism according to claim 1, characterized in that The gas supply assembly (30) includes: An air source (31) is used to supply air with a certain pressure; An air storage tank (32) is provided, with one end connected to an air source (31) and the other end connected to a cylinder (10). The air storage tank (32) is used to store and supply air with a certain pressure to the cylinder (10).

3. The cylinder ejector mechanism of claim 2, wherein The gas storage tank (32) is provided with a second pressure detection element (50), which is used to detect the gas pressure inside the gas storage tank (32).

4. The cylinder ejector mechanism of claim 3, wherein Both the first pressure detection element (40) and the second pressure detection element (50) are pressure sensors.

5. The cylinder ejector mechanism of claim 3, wherein The air supply assembly (30) also includes a solenoid valve (33), which is disposed on the pipeline connecting the air source (31) and the air storage tank (32). The solenoid valve (33) is used to control the on / off connection between the air source (31) and the air storage tank (32).

6. The cylinder ejector mechanism of claim 5, wherein It also includes a control structure, to which the solenoid valve (33), the first pressure sensing element (40) and the second pressure sensing element (50) are electrically connected.

7. The cylinder ejector mechanism of claim 6, wherein It also includes an alarm, which is electrically connected to the control structure and is used to emit an alarm sound.

8. The cylinder ejector mechanism of claim 1 wherein, It also includes a mounting component (60), on which the body portion (12) of the cylinder (10) is mounted.

9. The cylinder ejector mechanism according to any one of claims 1-8, characterized in that, There are two cylinders (10), both of which are connected to the air supply assembly (30), and the ejector rods (11) of both cylinders (10) are connected to the feeding structure (20). The air supply assembly (30) is used to supply air at the same pressure to the two cylinders (10) so that the two cylinders (10) can work synchronously.

10. An aluminum shell stretching device, characterized in that, Includes the cylinder ejection mechanism as described in any one of claims 1-9.

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