Constant-pressure pneumatic winding assist device

Abstract

The utility model discloses a constant pressure type pneumatic winding assistor, an auxiliary roll pressing component comprises a pressing arm and a driving cylinder, the tail end of the pressing arm is provided with a pressing plate, and the pressing arm can be driven by the driving cylinder to swing in a single degree of freedom; the constant-pressure gas path system comprises a pressure control valve, an electromagnetic valve and an overflow valve, the pressure control valve is used for controlling the pressure of gas entering the constant-pressure gas path system, the electromagnetic valve is used for controlling the flow of the gas entering the driving cylinder, and the overflow valve is used for keeping the pressure in the driving cylinder constant; the pressing plate of the auxiliary roll pressing assembly is driven by the pressing arm to be pressed on the surface of the grid belt, so that the phenomenon of roll loosening cannot occur in the winding process of the grid belt; and meanwhile, the constant-pressure air path system controls the pressure in the driving air cylinder to be constant, so that the pressing plate is ensured to tightly press the grid belt with constant force, relatively stable pressure output is provided for the pressing plate on the pressing arm, and the situation that the outer ring of the wound grid belt is loose is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field and relates to a constant pressure pneumatic winding auxiliary device. Background Technology

[0002] The grid of a lead-acid battery is a crucial component. As the current-collecting framework of the electrodes, the grid is responsible for conducting and collecting current, ensuring uniform current distribution. The grid also supports the active materials and reduces the battery's internal resistance. During lead-acid battery manufacturing, the incoming grid strip needs to be wound into rolls to facilitate subsequent lead-acid battery production.

[0003] Because the feed speed of the battery grid strip at the front end fluctuates, the winding machine needs to adjust its speed accordingly. This can lead to loosening of the outer ring of the grid strip during the speed reduction adjustment process, resulting in insufficient utilization of the winding reel space.

[0004] To solve the above problems, a device is needed to assist in the winding of the grid strip to prevent the outer ring of the wound grid strip from becoming loose. Utility Model Content

[0005] In view of this, the present invention provides a constant pressure pneumatic winding aid. The pressure plate of the auxiliary winding assembly is driven by the pressure arm to press firmly against the surface of the grid strip, so that the grid strip will not loosen during the winding process. At the same time, the constant pressure air circuit system controls the pressure in the drive cylinder to be constant, thereby ensuring that the pressure plate presses the grid strip with a constant force, ensuring that the drive cylinder maintains a constant pressure state during operation, and providing a relatively stable pressure output to the pressure plate on the pressure arm, thus preventing the outer ring of the wound grid strip from becoming loose.

[0006] This utility model discloses a constant-pressure pneumatic winding aid, including an auxiliary winding assembly and a constant-pressure air circuit system. The auxiliary winding assembly includes a pressure arm and a drive cylinder. A pressure plate is provided at the end of the pressure arm, and the pressure arm can be driven by the drive cylinder to swing in a single degree of freedom. The constant-pressure air circuit system includes a pressure control valve, a solenoid valve, and a relief valve. The pressure control valve is located before the solenoid valve to control the pressure of the gas entering the constant-pressure air circuit system. The solenoid valve and the relief valve are respectively connected to the drive cylinder. The solenoid valve is used to control the flow rate of the gas entering the drive cylinder. The relief valve is used to maintain a constant pressure in the drive cylinder.

[0007] Furthermore, the constant pressure air circuit system also includes a flow control valve. The solenoid valve is provided with a first passage and a second passage. Both the first passage and the second passage are connected to the drive air rod. The flow control valve is installed in the second passage to regulate the flow rate of the second passage. The overflow valve is connected to the second passage and is located between the flow control valve and the drive air cylinder.

[0008] Furthermore, it also includes a support assembly, which includes a support base and a support rod vertically mounted on the support base. The support base is provided with multiple legs, which are evenly distributed along the circumference of the support base. The first end of the pressure arm is hinged to the top of the support rod, and the drive cylinder is mounted on the support rod.

[0009] Furthermore, the support assembly also includes a mounting bracket, which is mounted on the top of the support rod, and the first end of the pressure arm is hinged to the top surface of the mounting bracket.

[0010] Furthermore, the support assembly also includes a cylinder mounting clip, which is mounted on the mounting bracket and located below the pressure arm. The drive cylinder has a drive end and a fixed end, with the fixed end hinged to the cylinder mounting clip and the drive end hinged to the bottom surface of the pressure arm.

[0011] Furthermore, the constant pressure air circuit system also includes a mounting base plate, which is mounted on the mounting frame, and the solenoid valve, flow control valve, overflow valve and pressure control valve are all mounted on the mounting base plate.

[0012] Furthermore, the mounting base plate is configured to avoid the cylinder mounting clip.

[0013] The beneficial effects of this utility model are:

[0014] This invention provides a constant-pressure pneumatic winding aid. The pressure plate of the auxiliary winding assembly is pressed against the surface of the strip by the pressure arm, preventing the strip from loosening during winding. Simultaneously, the constant-pressure air circuit system controls the pressure within the drive cylinder to remain constant, ensuring the pressure plate presses the strip with a constant force. This ensures the drive cylinder maintains a constant pressure during operation and provides a relatively stable pressure output to the pressure plate on the pressure arm, preventing the outer ring of the wound strip from becoming loose. This effectively increases the winding capacity of the winding reel, thus improving its utilization rate. Attached Figure Description

[0015] Figure 1 This is an isometric side view of the present invention;

[0016] Figure 2 This is the main view of the utility model;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a schematic diagram of a constant pressure air circuit system;

[0019] Figure 5 This is a connection diagram of a constant pressure air circuit system;

[0020] Figure 6 This is a schematic diagram of the working process of this utility model. Detailed Implementation

[0021] It should be noted that in the description of this specification, the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. In this embodiment, the beginning and end, as well as the front and back, are based on the order of medium flow; that is, the medium that flows through first is considered front or beginning. This is understandable to those skilled in the art and will not be elaborated upon here.

[0022] As shown in the figure, this utility model discloses a constant pressure pneumatic winding aid, including an auxiliary winding assembly and a constant pressure air circuit system. The auxiliary winding assembly includes a pressure arm 1 and a drive cylinder 3. The end of the pressure arm 1 is provided with a pressure plate 2. The pressure arm 1 can be driven by the drive cylinder 3 to swing in a single degree of freedom. The constant pressure air circuit system includes a solenoid valve 13 and an overflow valve 11. The solenoid valve 13 and the overflow valve 11 are respectively connected to the drive cylinder 3. The solenoid valve 13 is used to control the flow rate of the gas entering the drive cylinder 3. The overflow valve 11 is used to maintain a constant pressure in the drive cylinder 3. In this embodiment, when the drive cylinder 3 extends, the pressure arm 1 presses the pressure plate 2 against the surface of the grid roll. When the drive cylinder 3 retracts, the pressure plate 2 swings in the opposite direction away from the grid roll. As the grid roll continues to wind, its diameter gradually increases. Therefore, the pressure plate 2 swings in the direction away from the grid roll as its diameter increases. However, the pressure on the pressure plate 2 remains constant. Thus, when the grid roll pushes the pressure plate 2 (i.e., the pressure arm 1) to swing, the drive cylinder 3, which is the driving source of the pressure arm 1, will also retract to a certain extent. At this time, the pressure inside the cylinder will increase, and the overflow valve 11 will be opened when the pressure increases to discharge gas to balance the pressure, ensuring that the pressure inside the cylinder is constant, and thus ensuring that the pressure applied by the pressure plate 2 is constant. In this embodiment, the pressure plate 2 has an outwardly protruding arc surface. The arc surface of the pressure plate 2 is tangent to the surface of the grid strip. At the tangent point, the pressure plate 2 presses the grid strip with a constant force, preventing the grid strip from becoming loose during winding. The pressure plate 2 of this invention presses the grid strip with a constant force. The pressure plate 2 has a relatively stable pressure output, which avoids the outer ring of the wound grid strip from becoming loose, thereby effectively increasing the winding amount of the take-up reel and thus improving the utilization rate of the take-up reel.

[0023] In this embodiment, a support assembly is also included. The support assembly includes a support base 4 and a support rod 5 vertically mounted on the support base 4. The first end of the pressure arm 1 is hinged to the top of the support rod 5, and the drive cylinder 3 is mounted on the support rod 5. The support assembly also includes a mounting frame 7 and a cylinder mounting clamp 16. The mounting frame 7 is mounted on the top of the support rod 5, and the first end of the pressure arm 1 is hinged to the top surface of the mounting frame 7. The cylinder mounting clamp 16 is mounted on the mounting frame 7 and located below the pressure arm 1. The drive cylinder 3 has a drive end and a fixed end. The fixed end is hinged to the cylinder mounting clamp 16, and the drive end is hinged to the bottom surface of the pressure arm 1. As shown in the figure, in this embodiment, the first end of the pressure arm 1 is hinged to the top surface of the mounting frame 7 via a rotary bearing 8, ensuring that the pressure arm 1 can swing smoothly. Here, the first end and the last end are the two ends of the pressure arm 1 along its axial direction, with the end that outputs force being the last end. This is understandable to those skilled in the art and will not be elaborated here. In this embodiment, the fixed end of the drive cylinder 3 refers to the cylinder body of the drive cylinder 3, and the driving end refers to the push rod of the drive cylinder 3. The push rod extending out of the cylinder is the pushing action, and the push rod retracting into the cylinder body is the retraction action. The cylinder body of the drive cylinder 3 is hinged to the cylinder mounting clamp 16, and the push rod is hinged to the bottom surface of the pressure arm 1 as shown in the figure. The hinge at both ends ensures that the drive cylinder 3 can push and pull the pressure arm 1 smoothly.

[0024] In this embodiment, the constant pressure air circuit system further includes a flow control valve 10 and a pressure control valve 12. The solenoid valve 13 is provided with a first passage 15 and a second passage 14, both of which are connected to the drive air rod. The flow control valve 10 is installed in the second passage 14 to regulate the flow rate of the second passage 14. The overflow valve 11 is connected to the second passage 14 and located between the flow control valve 10 and the drive cylinder 3. The pressure control valve 12 is located before the solenoid valve 13. In this embodiment, the pressure control valve 12 mainly controls the pressure of the air source entering the constant pressure air circuit system, while the flow control valve controls the flow rate of the gas entering the cylinder through the second passage 14. In this embodiment, the drive cylinder 3 is a double-acting cylinder, meaning that both the pushing and retracting actions of the drive cylinder 3 are achieved through air intake, only the air intake channels are different. The first and second passages 14 are opened alternately to achieve this. Taking the pushing action as an example, ... Figure 5As shown, air enters through the second passage 14, causing the push rod to extend. To ensure the continuous operation of the drive cylinder 3, after the push rod is extended to its position, the flow control valve 10 is adjusted to ensure that the drive cylinder 3 maintains its current state, and excess gas entering the cylinder flows out through the first passage. As the diameter of the grid roll gradually increases with winding, the drive cylinder 3 will also passively retract to a certain extent. At this time, the pressure inside the cylinder will increase, and the overflow valve 11 will be opened when the pressure increases to discharge gas to balance the pressure, ensuring that the pressure inside the cylinder is constant, and thus ensuring that the pressure applied by the pressure plate 2 is constant. When stopping work and retracting the pressure plate 2, the working process is relatively simple. Air is directly supplied to the cylinder through the first passage, causing the push rod to retract, which in turn pulls the pressure arm 1, causing the pressure plate 2 to move away. After the push rod retracts to its position, the air supply is stopped.

[0025] In this embodiment, the constant pressure air circuit system further includes a mounting base plate 9, which is mounted on the mounting frame 7. The solenoid valve 13, flow control valve 10, overflow valve 11, and pressure control valve 12 are all mounted on the mounting base plate 9. The mounting base plate 9 is positioned to avoid the cylinder mounting clip 16. In this embodiment, the mounting base plate 9 and the cylinder mounting clip 16 are located on two side walls of the mounting frame 7, respectively.

[0026] In this embodiment, the support base is also provided with three legs 6 as shown in the figure. The three legs 6 are evenly distributed along the circumference of the support base 4 to improve the placement stability of the device.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A constant-pressure pneumatic winding aid, characterized in that, The system includes an auxiliary winding assembly and a constant pressure air circuit system. The auxiliary winding assembly includes a pressure arm and a drive cylinder. The end of the pressure arm is provided with a pressure plate. The pressure arm can be driven by the drive cylinder to swing in a single degree of freedom. The constant pressure air circuit system includes a pressure control valve, a solenoid valve, and a relief valve. The pressure control valve is located before the solenoid valve to control the pressure of the gas entering the constant pressure air circuit system. The solenoid valve and the relief valve are respectively connected to the drive cylinder. The solenoid valve is used to control the flow rate of the gas entering the drive cylinder. The relief valve is used to maintain a constant pressure in the drive cylinder.

2. The constant pressure pneumatic winding aid according to claim 1, characterized in that: The constant pressure air circuit system also includes a flow control valve. The solenoid valve is provided with a first passage and a second passage. Both the first passage and the second passage are connected to the drive cylinder. The flow control valve is installed in the second passage to regulate the flow rate of the second passage. The overflow valve is connected to the second passage and is located between the flow control valve and the drive cylinder.

3. The constant pressure pneumatic winding aid according to claim 2, characterized in that: It also includes a support assembly, which includes a support base and a support rod vertically mounted on the support base. The support base is provided with multiple legs, which are evenly distributed along the circumference of the support base. The first end of the pressure arm is hinged to the top of the support rod, and the drive cylinder is mounted on the support rod.

4. The constant pressure pneumatic winding aid according to claim 3, characterized in that: The support assembly also includes a mounting bracket, which is mounted on the top of the support rod, and the first end of the pressure arm is hinged to the top surface of the mounting bracket.

5. The constant pressure pneumatic winding aid according to claim 4, characterized in that: The support assembly also includes a cylinder mounting clip, which is mounted on the mounting bracket and located below the pressure arm. The drive cylinder has a drive end and a fixed end, with the fixed end hinged to the cylinder mounting clip and the drive end hinged to the bottom surface of the pressure arm.

6. The constant pressure pneumatic winding aid according to claim 5, characterized in that: The constant pressure air circuit system also includes a mounting base plate, which is mounted on the mounting frame. The solenoid valve, flow control valve, overflow valve and pressure control valve are all mounted on the mounting base plate.

7. The constant pressure pneumatic winding aid according to claim 6, characterized in that: The mounting base plate is configured to avoid the cylinder mounting clip.

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