Rotary pressure maintaining device and pressure maintaining method

Abstract

The invention relates to the technical field of product assembly pressure maintaining, and discloses a rotary pressure maintaining device and a pressure maintaining method. The rotary base is rotationally arranged on the rack and used for placing a product to be subjected to pressure maintaining; the rotary driver is connected with the rotary base and used for driving the rotary base to rotate; the first telescopic piece is arranged on the lateral upper portion of the rotating base, a first rolling shaft pressing head is arranged at the telescopic end, the fixed end is connected with the rack, and the first rolling shaft pressing head is driven to be close to / away from the product to be subjected to pressure maintaining during stretching; and the second telescopic piece is arranged above the side of the rotating base, a second roller pressing head is arranged at the telescopic end, the fixed end is connected with the rack, the second roller pressing head is driven to be close to / away from the product to be subjected to pressure maintaining during stretching out and drawing back, and the second telescopic piece and the first telescopic piece are symmetrically arranged on the two sides of the product to be subjected to pressure maintaining. According to the pressure maintaining method, continuous and effective pressure maintaining can be conducted on cylindrical, conical and cone-frustum-shaped products of different specifications and sizes through the rotary pressure maintaining device.

Description

Technical Field

[0001] This invention relates to the field of pressure holding technology in product assembly, specifically to a rotary pressure holding device and pressure holding method. Background Technology

[0002] In the manufacturing process of 3C home products, some components are typically bonded using double-sided tape or adhesive. To ensure that the activity of the double-sided tape is fully activated after product assembly, continuous vertical pressure is usually applied to the bonding surfaces after assembly.

[0003] For pressure holding on the curved surfaces of cylindrical, conical, and frustum-shaped products, existing technologies generally employ a contouring method. This involves creating a contoured pressure head that matches the curved surface of the product and applying appropriate thrust to achieve pressure holding. However, this method requires custom-making a batch of contoured pressure heads for each product, resulting in high costs and the inability to reuse them. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a rotary pressure-holding device and a pressure-holding method, which can continuously and effectively maintain pressure on cylindrical, conical, and frustum-shaped products of different specifications and sizes.

[0005] According to one embodiment of the present invention, a rotary pressure-holding device is provided, comprising: a frame; a rotary base rotatably mounted on the frame for placing a product to be pressure-held; a rotary driver connected to the rotary base for driving the rotary base to rotate; a first telescopic member disposed above the side of the rotary base, having a first roller pressure head at its telescopic end and a fixed end connected to the frame, wherein the first roller pressure head moves closer to / away from the product to be pressure-held during telescopic movement; and a second telescopic member disposed above the side of the rotary base, having a second roller pressure head at its telescopic end and a fixed end connected to the frame, wherein the second telescopic member and the first telescopic member are symmetrically disposed on both sides of the product to be pressure-held.

[0006] As one embodiment, the rotary pressure holding device further includes: a third telescopic member, disposed above the rotary base, with a fixed pressure plate rotatably mounted on the telescopic end, and the fixed end connected to the frame, which moves the fixed pressure plate closer to / away from the product to be pressure held during telescopic movement.

[0007] In one embodiment, a first rotating bracket is provided between the first telescopic member and the frame for adjusting the tilt angle of the first roller pressure head; a second rotating bracket is provided between the second telescopic member and the frame for adjusting the tilt angle of the second roller pressure head.

[0008] As one embodiment, the rotary pressure holding device further includes: a slide rail disposed on the frame; a fourth telescopic member, the telescopic end of which is connected to the rotary base, and the telescopic direction is parallel to the slide rail; wherein the rotary base is slidably disposed on the slide rail.

[0009] As one embodiment, the rotary pressure holding device further includes: a pressure sensor disposed on the first roller pressure head and the second roller pressure head, used to detect the pressure applied by the first roller pressure head and the second roller pressure head to the product to be pressure held; and a controller connected to the pressure sensor, the first telescopic member and the second telescopic member, used to control the extension and retraction lengths of the first telescopic member and the second telescopic member, so that the value of the pressure sensor is maintained at a preset target pressure value.

[0010] In one embodiment, the first telescopic component and the second telescopic component are telescopic cylinders. The controller adjusts the telescopic length of the first telescopic component and the second telescopic component by controlling the proportional valve on the air circuit of the telescopic cylinder to control the air circuit pressure.

[0011] As one embodiment, the rotary pressure holding device further includes a barcode scanner, which is mounted on the frame and connected to the controller, with its scanning end facing the rotating base, for scanning and recognizing a preset marking pattern on the product to be pressure held.

[0012] As one embodiment, the rotary pressure holding device further includes: an outer cover disposed on the outer periphery of the frame, the rotary base, the rotary drive, the first telescopic member and the second telescopic member; and a pressure display disposed on the outer cover and connected to the controller for displaying the value measured by the pressure sensor.

[0013] According to one embodiment of the present invention, a pressure-holding method is provided, comprising the following steps: S1, fixing the product to be pressure-held on a rotating base, extending the first and second telescopic members on both sides, so that the first and second roller pressure heads press tightly against the product to be pressure-held, and applying a preset target pressure to the product to be pressure-held; S2, rotating the rotating base to a preset angle or continuously rotating it in both directions within a preset angle range, and maintaining the target pressure for a preset time; S3, retracting the first and second telescopic members, and removing the pressure-held product.

[0014] In one implementation, after the product to be pressurized is placed on the rotating base, the third telescopic component drives the fixed pressure plate to fix the product to be pressurized on the rotating base. After the product to be pressurized is fixed on the rotating base, the barcode scanner scans and identifies the preset marking pattern on the product to be pressurized to obtain the pressure-bearing part, pressure value and pressurization time required for the product to be pressurized. The controller controls the rotation of the rotating base and controls the first telescopic component and the second telescopic component to apply the preset target pressure to the product to be pressurized.

[0015] Based on the above description and practice, the rotary pressure-holding device of this invention, by symmetrically arranging a first telescopic member and a second telescopic member on both sides of the product to be pressured, utilizes the roller pressure heads at their ends to apply pressure to the product. Combined with the rotation of the rotating base, the required pressure can be applied to any position on the side of the product. By changing the length and position of the first and second telescopic members, continuous and effective pressure-holding can be achieved for cylindrical, conical, and frustum-shaped products of different specifications and sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rotating pressure holding device according to one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of a rotary pressure holding device according to one embodiment of the present invention.

[0018] Figure 3 This is a flowchart of a pressure-holding method according to one embodiment of the present invention.

[0019] The attached figures are labeled as follows: 1. Frame; 2. Rotary base; 3. Rotary driver; 4. First telescopic component; 5. Second telescopic component; 6. First roller pressure head; 7. Second roller pressure head; 8. Third telescopic component; 9. Fixed pressure plate; 10. First rotating bracket; 11. Second rotating bracket; 12. Slide rail; 13. Fourth telescopic component; 14. Barcode scanner; 15. Outer cover; 16. Pressure indicator. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention.

[0022] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] like Figure 1 and Figure 2 As shown in the figure, in this embodiment, a rotary pressure holding device is disclosed, which is mainly used to maintain continuous and effective pressure on products with curved surfaces, such as cylindrical, conical, and frustum-shaped products, during assembly.

[0024] The rotary pressure-holding device mainly includes a frame 1, a rotary base 2, a rotary driver 3, a first telescopic component 4, and a second telescopic component 5. The frame 1 serves as the structural foundation of the entire device and is primarily used for mounting other structures. The rotary base 2 is rotatably mounted on the frame 1 and is used to place and support the product to be pressure-held. The rotary driver 3 is connected to the rotary base 2, for example, via a coupling or reducer, and is used to drive the rotary base 2 to rotate around its central axis.

[0025] The first telescopic component 4 is located on the upper side of the rotating base 2. A first roller pressure head 6 is mounted on its telescopic end, and its fixed end is connected to the frame 1. Through telescopic movement, the first roller pressure head 6 can be moved closer to or further away from the product to be pressurized placed on the rotating base 2.

[0026] The second telescopic member 5 is also located on the upper side of the rotating base 2. Its telescopic end is equipped with a second roller pressure head 7, and its fixed end is connected to the frame 1. Through telescopic movement, the second roller pressure head 7 can be moved closer to or further away from the product to be pressurized placed on the rotating base 2. The second telescopic member 5 and the first telescopic member 4 are symmetrically arranged on both sides of the product to be pressurized, that is, the second telescopic member 5 and the first telescopic member 4 are symmetrically arranged about the central axis of the product to be pressurized, thereby enabling the simultaneous application of opposing pressure from both sides of the product.

[0027] The first roller pressure head 6 and the second roller pressure head 7 have a cylinder that can rotate about an axis. During use, the side of the cylinder contacts the surface of the product to be pressurized and can rotate as the product rotates. The axis of rotation of the cylinder is usually perpendicular to the extension and retraction direction of the telescopic member so as to stably apply pressure to the product.

[0028] This rotary pressure-holding device replaces the custom-made contour-following pressure head with two symmetrically arranged adjustable roller pressure heads that rotate in coordination. One set of equipment can accommodate various cylindrical, conical, and frustum-shaped products with different diameters and tapers, significantly reducing assembly costs and time. The rotary motion ensures uniform pressure on the entire curved side of the product to be pressure-held, avoiding unevenness issues that may occur with fixed-point pressure.

[0029] In this embodiment, the rotary pressure-holding device further includes a third telescopic member 8, which is positioned directly above the rotary base 2. A fixed pressure plate 9 is rotatably mounted on the telescopic end of the third telescopic member 8 via a bearing or similar structure. The fixed end of the third telescopic member 8 is connected to the frame 1. When the third telescopic member 8 extends or retracts, it drives the fixed pressure plate 9 to move up and down, thus moving it closer to or further away from the product to be pressure-held. The telescopic movement of the third telescopic member 8 drives the fixed pressure plate 9 to press down, thereby vertically pressing and fixing the product to be pressure-held onto the rotary base 2, preventing it from shaking during the rotary pressure-holding process. In other embodiments, clamps or similar structures can also be provided on the rotary base 2, which can also achieve the same effect of fixing the product to be pressure-held.

[0030] In this embodiment, a first rotating bracket 10 is provided between the first telescopic member 4 and the frame 1 for adjusting the tilt angle of the first roller pressure head 6; a second rotating bracket 11 is provided between the second telescopic member 5 and the frame 1 for adjusting the tilt angle of the second roller pressure head 7. The first rotating bracket 10 and the second rotating bracket 11 can be selected as a rotating shaft mechanism with a locking function. The user can adjust the tilt angle of the two roller pressure heads according to actual needs, so that their axes are parallel to the generatrix of the conical surface of the product to be pressed. For example, when the product to be pressed is a cylinder, the two roller pressure heads can be adjusted to a vertical direction, and when pressure is applied, the two roller pressure heads can press tightly against the surface of the product to be pressed; when the product to be pressed is a cone or a frustum of a cone, the two roller pressure heads are adjusted to a tilted state, so that their axes are parallel to the generatrix of the conical surface of the product to be pressed, and when pressure is applied, the two roller pressure heads can press tightly against the surface of the product to be pressed.

[0031] In this embodiment, the rotary pressure-holding device further includes a slide rail 12 and a fourth telescopic member 13. The slide rail 12 is fixedly mounted on the frame 1. The telescopic direction of the fourth telescopic member 13 is parallel to the slide rail 12, and its telescopic end is connected to the rotary base 2. The rotary base 2 is slidably mounted on the slide rail 12 via a slider or similar structure. Driven by the fourth telescopic member 13, the entire rotary base 2 and the product to be pressure-held can move along the slide rail 12. This facilitates the loading and unloading of the product and the adjustment of the pressure application position.

[0032] In this embodiment, to achieve precise closed-loop pressure control, the rotary pressure-holding device further includes a pressure sensor and a controller. The pressure sensor is installed on the first roller pressure head 6 and the second roller pressure head 7, for example, between the roller pressure head mounting base and the telescopic end of the telescopic component, to detect in real time the pressure value applied by the roller pressure head to the product to be pressure-held.

[0033] The controller can be a PLC or an industrial computer, which is connected to the pressure sensor, the first telescopic member 4, and the second telescopic member 5. The controller receives the feedback signal from the pressure sensor and controls the extension and retraction lengths of the first telescopic member 4 and the second telescopic member 5 to dynamically stabilize the value measured by the pressure sensor at a preset target pressure value.

[0034] Specifically, in this embodiment, the first telescopic member 4, the second telescopic member 5, the third telescopic member 8, and the fourth telescopic member 13 are telescopic cylinders. The controller controls the air pressure by controlling the proportional valve connected to the air circuit of the telescopic cylinders, thereby adjusting the extension length of the cylinder rods in each of the first telescopic member 4, the second telescopic member 5, the third telescopic member 8, and the fourth telescopic member 13, thus controlling the pressure applied to the product to be pressurized. In other embodiments, the first telescopic member 4, the second telescopic member 5, the third telescopic member 8, and the fourth telescopic member 13 can also be telescopic devices such as electric push rods, which can also achieve the above functions.

[0035] In this embodiment, to achieve automated production and automatic call of process parameters, the rotary pressure holding device also includes a barcode scanner 14, such as a barcode or QR code scanner. The barcode scanner 14 is fixed to the frame 1 and connected to the controller, with its scanning end facing the product station on the rotating base 2. It is used to scan preset marking patterns on the product to be pressured or its carrier to identify the product model or batch. Subsequently, based on this product information, the controller can control the operation of the first telescopic member 4, the second telescopic member 5, the third telescopic member 8, and the rotary drive 3 according to a preset program to achieve pressure holding of a preset portion of the product to be pressured and maintain the preset pressure holding time at the target pressure value.

[0036] In this embodiment, the rotary pressure-holding device further includes an outer cover 15 and a pressure display 16. The outer cover 15 is installed outside the frame 1, enclosing the rotating base 2, rotary drive 3, and various telescopic components, providing safety protection and dust prevention. The pressure display 16 is mounted on the control panel of the outer cover 15 and connected to the controller. It displays the values ​​measured by each pressure sensor and the target pressure value in real time, allowing the user to control the operation of the rotary pressure-holding device promptly.

[0037] like Figure 3 As shown, this embodiment also discloses a pressure-holding method, which employs the aforementioned rotary pressure-holding device, enabling continuous and effective pressure holding for cylindrical, conical, and frustum-shaped products of different specifications and sizes. The pressure-holding method specifically includes the following steps: Step S1: Place and fix the product to be pressurized on the rotating base 2, control the first telescopic component 4 and the second telescopic component 5 to extend synchronously, so that the first roller pressure head 6 and the second roller pressure head 7 press tightly against the curved side of the product from both sides, and apply pressure to reach the preset target pressure value.

[0038] Step S2: Start the rotary driver 3, which drives the rotary base 2 to rotate the product to a preset angle for fixed-point pressure holding, or continuously rotate forward and backward within a preset angle range (such as 0-180 degrees). During this process, the controller continuously adjusts the telescopic components to ensure that the pressure applied to the side of the product remains stable at the target pressure and is maintained for the preset pressure holding time.

[0039] Step S3: After the pressure holding time is reached, the controller controls the first telescopic component 4 and the second telescopic component 5 to shorten, causing the roller pressure head to move away from the side of the product. Then the product that has completed the pressure holding can be removed from the rotating base 2.

[0040] Furthermore, in this pressure-holding method, after the product to be pressure-held is placed on the rotating base 2, the fourth telescopic member 13 drives the rotating base 2 to move inward to directly below the fixed pressure plate 9, and then the third telescopic member 8 drives the fixed pressure plate 9 to move downward, pressing and fixing the product onto the rotating base 2. After the product to be pressure-held is fixed, the barcode scanner 14 scans the markings on the product. The controller automatically retrieves the corresponding pressure-holding process parameters based on the scanning results, such as the rotation angle corresponding to the pressure-bearing part, the target pressure value, and the pressure-holding time, and automatically controls the rotating base 2 to rotate to the starting position. At the same time, it controls the first telescopic member 4 and the second telescopic member 5 on both sides to apply the preset target pressure to the product to be pressure-held. After the pressure-holding time is met, the controller controls the first telescopic member 4 and the second telescopic member 5 to shorten, and then controls the third telescopic member 8 and the fourth telescopic member 13 to shorten in sequence. The product to be pressure-held is removed from the outer cover 15, and then the pressure-held product can be taken out from the rotating base 2.

[0041] The rotary pressure-holding device and method in this embodiment replaces the custom-made contour-following pressure head with two symmetrically arranged roller pressure heads that rotate in coordination. One device can adapt to various cylindrical, conical, and frustum-shaped products with different diameters and tapers, significantly reducing equipment costs and production preparation time. During operation, the rotational motion ensures uniform pressure on the entire curved side of the product, avoiding unevenness issues that may occur with fixed-point pressure. Combined with closed-loop pressure control, it ensures accurate and stable pressure throughout the entire pressure-holding process.

[0042] This rotary pressure holding device integrates barcode scanning and identification, pressure sensing and closed-loop control, and programmed operation. It can automatically identify different products and automatically match process parameters, reducing manual intervention and improving production efficiency and consistency. The device also enhances operational safety through the use of an outer casing 15 and automatic control.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rotary pressure holding device, characterized in that, include: frame; A rotating base, rotatably mounted on the frame, is used to hold products to be pressurized; A rotary driver, connected to the rotary base, is used to drive the rotary base to rotate; The first telescopic component is located on the side above the rotating base. The telescopic end is provided with a first roller pressure head, and the fixed end is connected to the frame. When telescopic, it drives the first roller pressure head to move closer to / away from the product to be pressured. The second telescopic component is located on the upper side of the rotating base. The telescopic end is equipped with a second roller pressure head, and the fixed end is connected to the frame. When telescopic, it drives the second roller pressure head to move closer to / away from the product to be pressured. The second telescopic component and the first telescopic component are symmetrically arranged on both sides of the product to be pressured.

2. The rotary pressure holding device as described in claim 1, characterized in that, Also includes: The third telescopic component is located above the rotating base. The telescopic end is rotatably equipped with a fixed pressure plate, and the fixed end is connected to the frame. When telescopic, the fixed pressure plate moves closer to / away from the product to be pressurized.

3. The rotary pressure holding device as described in claim 1, characterized in that, A first rotating bracket is provided between the first telescopic member and the frame for adjusting the tilt angle of the first roller pressure head; A second rotating bracket is provided between the second telescopic member and the frame for adjusting the tilt angle of the second roller pressure head.

4. The rotary pressure holding device as described in claim 1, characterized in that, Also includes: The slide rail is mounted on the frame; The fourth telescopic component has its telescopic end connected to the rotating base, and its telescopic direction is parallel to the slide rail. The rotating base is slidably mounted on the slide rail.

5. The rotary pressure holding device as described in claim 1, characterized in that, Also includes: A pressure sensor is installed on the first roller pressure head and the second roller pressure head to detect the pressure applied by the first roller pressure head and the second roller pressure head to the product to be pressure-held; The controller, connected to the pressure sensor, the first telescopic component, and the second telescopic component, is used to control the extension and retraction lengths of the first telescopic component and the second telescopic component, so that the pressure sensor value is maintained at a preset target pressure value.

6. The rotary pressure holding device as described in claim 5, characterized in that, The first telescopic component and the second telescopic component are telescopic cylinders. The controller adjusts the telescopic length of the first telescopic component and the second telescopic component by controlling the proportional valve on the air circuit of the telescopic cylinder to control the air circuit pressure.

7. The rotary pressure holding device as described in claim 5, characterized in that, Also includes: A barcode scanner, mounted on the frame and connected to the controller, has its scanning end facing the rotating base and is used to scan and identify preset marking patterns on the product to be pressurized.

8. The rotary pressure holding device as described in claim 5, characterized in that, Also includes: The outer cover is provided on the outer periphery of the frame, the rotating base, the rotating drive, the first telescopic member, and the second telescopic member; A pressure display, mounted on the outer casing and connected to the controller, is used to display the values ​​measured by the pressure sensor.

9. A pressure-holding method, characterized in that, Includes the following steps: S1. Fix the product to be pressurized on the rotating base. The first and second telescopic parts on both sides extend so that the first roller pressure head and the second roller pressure head press tightly against the product to be pressurized, and apply a preset target pressure to the product to be pressurized. S2. Rotate the rotating base to a preset angle or continuously rotate it in both directions within the preset angle range, and maintain the target pressure for a preset time; S3. Retract the first and second telescopic components and remove the product after pressure holding.

10. The pressure-holding method as described in claim 9, characterized in that, After the product to be pressurized is placed on the rotating base, the third telescopic component drives the fixed pressure plate to fix the product to be pressurized on the rotating base. After the product to be pressurized is fixed on the rotating base, the barcode scanner scans and identifies the preset marking pattern on the product to be pressurized, and obtains the pressure-bearing part, pressure value and pressurization time required for the product to be pressurized. The controller controls the rotating base to rotate and controls the first telescopic component and the second telescopic component to apply the preset target pressure to the product to be pressurized.

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