A continuous processing platform for metal caps

Abstract

This utility model belongs to the technical field of metal parts processing equipment, and particularly relates to a continuous processing platform for metal covers, comprising: a platform body with a feeding table; a stamping head located above the downstream side of the platform body for stamping metal sheets; further comprising: a pressure plate disposed upstream of the stamping head and moving up and down to restrict the position of the metal sheet in the height direction; and a fluid assist mechanism disposed on the platform body for assisting the feeding of the metal sheet; wherein the fluid assist mechanism assists the metal sheet by spraying airflow below it to help the metal sheet float during feeding or adhere to the feeding table during stamping. Compared with the prior art, this utility model improves processing accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal parts processing equipment, and in particular relates to a continuous processing platform for metal caps. Background Technology

[0002] In the manufacturing process of metal covers, one step involves continuously stamping metal sheets to form circular metal parts. However, with existing machine tools, the friction between the sheet and the processing platform is high, resulting in high handling resistance and inconvenient sheet feeding. Furthermore, the upward inertial force generated during stamping causes the sheet to rise synchronously, leading to dynamic bending upon descent. This dynamic bending can cause the sheet to become stuck in the processing area, affecting the continuity of sheet feeding and reducing processing accuracy. Additionally, the existing processing platform relies on manual inspection for sheet positioning, which is inefficient and error-prone, further reducing processing accuracy. Therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a continuous metal cover processing platform to effectively ensure continuous feeding of sheet metal and improve processing accuracy.

[0004] In view of this, the present invention provides a continuous processing platform for metal caps, comprising: The platform body, on which a feeding platform is provided; A stamping head, located above the downstream side of the platform body, is used to perform stamping operations on metal sheets; Also includes: A pressure plate is disposed on the upstream side of the stamping head and moves up and down to limit the position of the metal sheet in the height direction; A fluid-assisted mechanism, which is mounted on the platform body to assist in the feeding of metal plates; The fluid-assisted mechanism assists the metal sheet by spraying airflow below it to help it float during feeding or adhere to the feed table during stamping operations.

[0005] In this technical solution, during the feeding process of the metal sheet, the fluid-assisted mechanism outputs airflow, causing the metal sheet to float slightly during feeding. A small gap is formed between the metal sheet and the feeding table, thereby reducing the sliding friction between them and effectively reducing the feeding resistance of the metal sheet, facilitating the feeding movement of the sheet. During the stamping operation, the fluid-assisted mechanism changes the airflow pattern to make the pressure in the area below the metal sheet less than the pressure in the area above. The metal sheet adheres to the feeding table, counteracting the inertial force generated by the upward inertia force of the stamping, preventing the sheet from floating, ensuring the continuity of sheet feeding, and improving processing accuracy.

[0006] In the above technical solution, the fluid-assisted mechanism further includes: A flow channel is provided on the feed platform to form a channel for airflow, and the two ends of the flow channel extend to the two ends of the platform body and form open slots. An air jet injector is disposed in the platform body and located on the upstream side of the feed platform; A slot opening and closing plate is provided at the slot opening on the downstream side of the flow channel to control the flow direction of the airflow in the flow channel. The air outlet of the air jet injector is located in the flow groove for outputting airflow into the flow groove.

[0007] In the above technical solution, further, the ejection axis of the airflow nozzle of the airflow injector has an acute angle with the central axis of the flow channel.

[0008] Furthermore, the above technical solution also includes: A plate limiting unit, wherein there are several plate limiting units evenly distributed on both sides of the feed table to limit the feeding direction of the metal plate.

[0009] In the above technical solution, the plate limiting unit further includes: The movable groove is located on the side edge of the platform body, and the upper end of the movable groove forms an opening on the feed table surface; A drive unit is disposed in the platform body, and the output end of the drive unit extends horizontally into the movable groove. A limiting rod, one end of which is connected to the output end of the drive unit via a connector; The top of the limiting rod extends vertically upward and its height is greater than the height of the feeding table. The limiting rod is driven by the driving unit to move in the direction of feeding the horizontal and vertical metal plate.

[0010] In the above technical solution, the limiting rod further includes: A vibrating element is integrated into a limiting rod. The vibrating element is used to excite the limiting rod with vibration and to detect vibration changes when the limiting rod contacts a metal plate. The judgment unit is connected to the vibrating component and is used to detect the changes in amplitude P and frequency F of the vibration state of the limiting rod.

[0011] The beneficial effects of this utility model are: 1. During the feeding stage, the fluid-assisted mechanism generates positive pressure through flow channels, creating a tiny gap between the metal plate and the feeding table, reducing sliding friction between them, effectively reducing feeding resistance, avoiding edge wrinkles and surface scratches on the plate, and eliminating the need for lubricating oil, reducing subsequent cleaning processes and lowering production costs.

[0012] 2. During the stamping stage, the opening and closing plate of the slot creates negative pressure, which makes the sheet metal tightly adhere to the table surface. Even when the pressure plate rises, the negative pressure can still counteract the inertial force of the sheet metal, preventing the sheet metal from floating up, ensuring the continuity of sheet metal feeding, and improving processing accuracy.

[0013] 3. The plate limiting unit achieves precise positioning through vibration detection, with short positioning response time and high positioning accuracy. At the same time, no manual intervention is required for positioning, which is compatible with the high-speed stamping rhythm and further improves processing accuracy and efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the feeding state structure of the metal plate component of this utility model.

[0017] Figure 3 This is a schematic diagram of the metal sheet stamping operation state of this utility model.

[0018] Figure 4 This is a schematic diagram of the airflow nozzle structure of the airflow ejector of this utility model.

[0019] Figure 5 This is a schematic diagram of the plate limiting unit structure of this utility model.

[0020] The markings in the diagram are as follows: 1. Platform body; 100. Feeding table; 2. Punching head; 3. Pressing plate; 4. Fluid auxiliary mechanism; 40. Flow groove; 41. Air jet; 42. Groove opening and closing plate; 5. Plate limiting unit; 50. Movable groove; 51. Drive unit; 52. Limiting rod; 520. Vibrating component; 521. Judgment unit. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] This utility model's continuous metal cover processing platform includes a platform body, a stamping head, a pressing plate, a fluid-assisted mechanism, a plate limiting unit, and a conventional processing platform control system. All components work together to achieve continuous feeding, precise positioning, and stable stamping of the metal plate. The specific structure is as follows: Platform Entity 1 The platform body 1, serving as the basic support component of the equipment, is integrally cast from HT300 gray cast iron, possessing excellent rigidity and vibration resistance, thus preventing platform deformation from affecting accuracy during processing. The top surface of the platform body 1 is the feed table 100. The input end of the feed table 100 can be equipped with a conventional roller conveyor mechanism to assist the metal sheet in moving along a preset direction (i.e., the "feed direction"). The length of the feed table 100 is designed according to the continuous stamping rhythm, preferably 3000mm, which can meet the sheet buffering requirements of at least 5 stamping stations, ensuring processing continuity.

[0024] 2 stamping heads The stamping head 2 is located above the downstream side of the platform body 1, perpendicular to the top surface of the platform body 1, and is used to stamp metal sheets into circular metal cover blanks. The stamping head 2 includes a servo drive module, a stamping die, and a stroke adjustment component; the stamping frequency of the stamping head 2 can be set by the control system to adapt to different production requirements, and the stamping stroke can be adjusted according to the thickness of the sheet to ensure thorough stamping without excessive extrusion.

[0025] Pressure plate 3 The pressure plate 3 is installed on the upstream side of the stamping head 2 and is arranged parallel to the feed table 100. It is driven to move up and down by two symmetrically arranged cylinders. A polyurethane buffer pad is attached to the bottom surface of the pressure plate 3. When the pressure plate 3 descends, it eventually stops above the metal sheet and leaves a small gap between the metal sheet and the pressure plate 3. This gap is used to limit the floating height of the metal sheet during the feeding process and also to help limit the metal sheet from lifting up due to inertia during the stamping operation. The length of the pressure plate 3 is adapted to the width of the feed table 100.

[0026] Fluid auxiliary mechanism 4 The fluid-assisted mechanism 4 is integrated into the platform body 1 and is used to assist in the feeding and stamping stability of the metal sheet through airflow regulation. It includes a flow groove 40, an airflow ejector 41, and a groove opening and closing plate 42. Specifically: The flow groove 40 is formed by a downward indentation of the feed table 100. Its length direction is parallel to the feeding direction of the metal sheet, and the central axis of the groove coincides with the central axis of the platform body 1, ensuring that the airflow force on the sheet is evenly distributed. The cross-section of the flow groove 40 is rectangular; the two ends of the groove extend to the front and rear ends of the platform body 1, respectively, forming open slots, and the inner wall of the groove is polished to reduce airflow resistance.

[0027] Air jets 41 are embedded inside the platform body 1 and located on the upstream side of the feed table 100 (i.e., near the front opening of the flow groove 40). One jet can be set at intervals along the length of the flow groove 40, and the air jet outlet of each jet extends into the flow groove 40. The air jet 41 adopts an electromagnetic control structure and is equipped with a pressure regulating valve, which can adjust the air pressure according to the material and thickness of the plate. The ejection axis of the nozzle forms a 30° acute angle with the central axis of the flow groove 40 (the acute angle setting allows part of the force of the airflow to act upward on the lower surface of the plate when it flows along the length of the groove, while avoiding the airflow directly impacting the edge of the plate and causing displacement).

[0028] The slot opening / closing plate 42 is driven by an electric push rod and installed at the slot opening on the downstream side of the flow channel 40. It can move horizontally in a direction perpendicular to the length of the channel to achieve complete closure or full opening of the slot opening. The edge of the opening / closing plate is equipped with a rubber sealing gasket, which ensures the downstream slot opening of the channel is sealed when closed to prevent air leakage. The response time of the opening / closing plate is ≤0.2 seconds, which can be precisely synchronized with the action sequence of the stamping head 2.

[0029] Panel limiting unit 5 The plate limiting unit 5 is used to limit the feeding direction of the metal plate and prevent the plate from shifting in the horizontal direction perpendicular to the feeding direction. There are 4 sets in total, evenly distributed on both sides of the feeding table 100 (2 sets on each side, 1500mm apart). Each set includes a movable groove 50, a drive part 51, a limiting rod 52 and a connecting part. The movable groove 50 is located on the side edge of the platform body 1. The groove is rectangular and its length direction is perpendicular to the feeding direction of the metal plate. The upper end of the groove forms an opening on the feeding table 100. The edge of the opening is rounded to avoid scratching the plate.

[0030] The drive unit 51 is a linear motor, which is fixedly installed inside the platform body 1. Its output end is connected to a connector, which can drive the limit rod 52 to move along the length direction of the movable groove 50.

[0031] The limiting rod 52 is a vertically arranged rod-shaped component, with its top end 10015mm higher than the feed table surface. The top end is rounded to prevent scratching the surface of the plate when in contact with it. The limiting rod 52 can be made of two materials: for metal plates with high surface finish requirements (such as aluminum alloy plates), polyoxymethylene (POM) material (which has excellent wear resistance and self-lubricating properties) is used; for plates with greater thickness or higher hardness (such as tinplate plates), brass material (which has high strength and is not easily rusted) is used. An 8mm diameter inner cavity is formed along the axial direction of the limiting rod 52 for mounting the vibrating component 520.

[0032] The connector adopts a rubber sleeve structure (made of nitrile rubber, hardness 50 Shore A). One end is fixedly connected to the output end of the drive unit 51, and the other end is interference-fitted with the lower end of the limit rod 52. The rubber sleeve not only serves as a connector but also decouples the vibration of the limit rod 52 from that of the platform body 1, preventing the vibration of the platform body 1 from being transmitted to the limit rod 52 and ensuring the accuracy of vibration detection of the limit rod 52.

[0033] The vibrating element 520 and the judgment unit 521 are integrated. The vibrating element 520 is integrated into the cavity of the limiting rod 52. It can be a piezoelectric element (model PZT-5H), an electromagnetic coil device, or a miniature vibration sensor. The piezoelectric element is preferred because it has a fast response speed and can generate micron-level vibrations of 1000-1500Hz with an amplitude range of 5-10μm, avoiding plate displacement due to excessive vibration amplitude. The judgment unit 521 uses an STM32F103 series microcontroller and is electrically connected to the vibrating element 520 through wires. It can collect the vibration parameters of the limiting rod 52 (including amplitude P and frequency F) detected by the vibrating element 520 in real time and transmit the parameter signals to the control system. The judgment unit 521 has a built-in threshold comparison algorithm. When the amplitude P decreases by more than 30% or the frequency F shifts by more than 50Hz, it is determined that the limiting rod 52 is in contact with the metal plate.

[0034] Control System: A Siemens S7-1200 series PLC is used as the core control module. It is electrically connected to the servo drive module of the stamping head 2, the cylinder of the pressing plate 3, the solenoid valve and electric push rod of the fluid auxiliary mechanism 4, the linear motor of the plate limit unit 5, and the judgment unit 521, enabling coordinated action of each component. The control system is equipped with a touch screen display, allowing operators to set parameters such as feed speed, stamping frequency, and airflow pressure, and to display the equipment's operating status in real time (e.g., plate positioning status, number of stampings, and fault alarm information).

[0035] Working principle Equipment initialization: The operator sets parameters through the control system; the control system drives the linear motor of the plate limiting unit 5 to adjust the distance between the two limiting rods 52. The piezoelectric element in the limiting rod 52 continuously generates 1200Hz micron-level vibration, and the judgment unit 521 collects the vibration parameters in real time. When the edge of the plate contacts the top of the limiting rod 52, the plate exerts a damping effect on the limiting rod 52, causing the vibration amplitude to drop from 10μm to below 6μm; after detecting this change, the judgment unit 521 sends a "positioning complete" signal to the control system, the limiting rod 52 stops moving, and the limiting rod 52 matches the preset feed path of the plate; at the same time, the control slot opening and closing plate 42 is closed, and the air jet 41 is in standby mode.

[0036] Plate feeding: The coiled metal sheet is unwound by the unwinding mechanism, and its front end is fed into the roller conveyor mechanism; the control system activates the air jet 41 to introduce 0.1 MPa of airflow into the flow groove 40—because the groove opening and closing plate 42 is closed, the airflow cannot be discharged from the downstream groove opening, but can only flow upward along the groove and act on the lower surface of the plate, forming positive pressure support. Under the action of positive pressure, the lower surface of the plate is slightly separated from the feeding table 100, and the roller conveyor mechanism drives the plate to move along the feeding direction. At this time, the contact area between the plate and the table is small, and the sliding friction is greatly reduced; Stamping operation: The control system drives the cylinder of the pressure plate 3, causing the pressure plate 3 to descend. The pressure plate 3 eventually stops above the metal sheet, leaving a small gap between the metal sheet and the pressure plate 3. At the same time, the control system opens the slot opening and closing plate 42, and the air jet 41 adjusts the air pressure to 0.2MPa. The airflow flows rapidly down the slot along the flow groove 40, forming a negative pressure in the groove. The negative pressure acts on the lower surface of the sheet, causing the sheet to adhere tightly to the feed table 100. Then, the servo drive module of the stamping head 2 drives the stamping die to descend, stamping the sheet into a circular metal cover blank. After stamping is completed, the stamping head 2 returns to its original position. Continuous cycle: After the stamping head 2 is reset, the air jet 41 is maintained at a negative pressure of 0.2MPa to prevent the plate from floating due to inertia; then the control system closes the slot opening and closing plate 42, the air pressure is restored to 0.1MPa, the roller conveyor restarts, and the plate continues to be fed into the next cycle, realizing the continuous processing of the metal cover blank.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A continuous processing platform for metal caps, comprising: Platform body (1), on which a feeding table (100) is provided; A stamping head (2) is located above the downstream side of the platform body (1) and is used to perform stamping operations on metal plates. Its characteristic is that it further includes: A pressure plate (3) is disposed on the upstream side of the stamping head (2) and moves up and down to limit the position of the metal sheet in the height direction; A fluid-assisted mechanism (4) is provided on the platform body (1) to assist in the feeding of metal plates; The fluid-assisted mechanism (4) assists the metal plate to float during feeding or to adhere to the feed table (100) during stamping by spraying airflow below the metal plate.

2. The metal cap continuity processing platform of claim 1, wherein, The fluid-assisted mechanism (4) further includes: Flow groove (40) is provided on the feed platform (100) to form a channel for airflow. The two ends of the flow groove (40) extend to the two ends of the platform body (1) and form open slots. Air jet (41) is disposed in the platform body (1) and located on the upstream side of the feed table (100); The slot opening and closing plate (42) is set at the slot on the downstream side of the flow channel (40) to control the flow direction of the airflow in the flow channel (40). The air jet outlet of the air jet injector (41) is located in the flow groove (40) for outputting airflow into the flow groove (40).

3. The continuous processing platform for metal caps according to claim 2, characterized in that: The ejection axis of the airflow nozzle of the airflow injector (41) forms an acute angle with the central axis of the flow channel (40).

4. The continuous processing platform for metal caps according to claim 1, characterized in that, Also includes: Plate limiting unit (5), the plate limiting unit (5) has a plurality of units and is evenly distributed on both sides of the feed table (100) to limit the feeding direction of the metal plate.

5. A continuous processing platform for metal caps according to claim 4, characterized in that, The plate limiting unit (5) also includes: An active groove (50) is provided at the side edge of the platform body (1), and the upper end of the active groove (50) forms an opening on the feed table (100); A drive unit (51) is disposed in the platform body (1), and the output end of the drive unit (51) extends horizontally into the movable groove (50); A limiting rod (52), one end of which is connected to the output end of the drive unit (51) via a connector; The top end of the limiting rod (52) extends vertically upward and the height of the top end of the limiting rod (52) is greater than the height of the feeding table (100). The limiting rod (52) is driven by the driving part (51) to move in the direction of feeding the horizontal and vertical metal plate.

6. The continuous processing platform for metal caps according to claim 5, characterized in that, The limiting rod (52) also includes: Vibration element (520), which is integrated in the limiting rod (52), is used to excite the limiting rod (52) with vibration and to detect the vibration change when the limiting rod (52) contacts the metal plate; The judgment unit (521) is connected to the vibrating element (520) to detect the amplitude P and frequency F changes of the vibration state of the limiting rod (52).

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