High-density integrated circuit lead frame coil disc adjusting device

Abstract

This invention relates to the field of feeding equipment technology, specifically to an adjustment device for a high-density integrated circuit lead frame reel. It includes a support shaft, with a sleeve fitted around the outside of the support shaft to support the reel. The sleeve is divided by a limiting plate and a clamping element. The clamping element is detachably fitted over the sleeve. The sleeve and the limiting plate are fixed to each other. The limiting plate and the sleeve can move axially along the support shaft and are circumferentially limited. A rotatable adjusting element is provided at the outer end of the support shaft. The adjusting element is axially restricted within the support shaft and is threadedly connected to the sleeve. Rotating the adjusting element causes the sleeve and the limiting plate to move axially along the support shaft, preventing the material strip on the reel from scraping against the limiting plate and avoiding dust and deformation problems. Even without stopping the machine, the position of the limiting plate can be finely adjusted via the adjusting element, making adjustment convenient and simple. Furthermore, the adjusting element is located at the outer end of the support shaft, providing greater operating space.

Description

Technical Field

[0001] This invention relates to the field of feeding equipment technology, and more specifically to a high-density integrated circuit lead frame reel adjustment device. Background Technology

[0002] High-density integrated circuit lead frames are fundamental components in the manufacture of integrated circuit semiconductor devices. To meet the requirements of manufacturing integrated circuit semiconductor devices, localized areas of the integrated circuit lead frame surface need to be electroplated with metallic silver or nickel-palladium-gold. Electroplating is a surface processing method in which the substrate metal is used as the cathode in a salt solution containing a pre-plated metal. Through electrolysis, the cations of the pre-plated metal in the plating solution are deposited on the surface of the substrate metal to form a plating layer. During electroplating, the plating metal or other insoluble material acts as the anode, and the workpiece to be plated acts as the cathode. The cations of the plating metal are reduced on the surface of the workpiece to form the plating layer.

[0003] The high-density integrated circuit lead frame to be plated is in the form of a strip, which is wound in a reel. The rolled lead frame and the reel are then inserted outside the support shaft. Under external force, the strip of lead frame is continuously unloaded and moved forward for electroplating. After electroplating, the lead frame is then wound up again by the reel.

[0004] After the reel containing the lead frame to be electroplated is mounted on the support shaft, it needs to be secured with clamping blocks to prevent the reel from detaching from the support shaft during unloading. Problem: The widths of the multi-frame strips vary. If the position of the support shaft remains unchanged, due to the different widths of the unwound and retracted strips, excessively wide strips or strip jumping can cause the side of the lead frame strip to rub against the clamping reel, resulting in dust scraping on the strip edges or side deformation, affecting processing efficiency. Therefore, the position of the reel needs to be adjusted according to the strip width or when switching between reels of different widths to ensure the strip travels along the ideal trajectory. However, existing support shafts are difficult to adjust, or the adjustment methods are too complex, causing inconvenience to operation. Summary of the Invention

[0005] To address the aforementioned technical problems in the existing technology, this invention provides a high-density integrated circuit lead frame reel adjustment device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-density integrated circuit lead frame reel adjustment device is provided, including a support shaft, a sleeve for supporting the reel is sleeved on the outside of the support shaft, the sleeve is divided by a limiting plate and a clamping member, the clamping member is detachably sleeved on the outside of the sleeve, the sleeve and the limiting plate are fixed to each other, the limiting plate and the sleeve can move axially along the support shaft and are circumferentially limited, the inner end of the support shaft near the limiting plate is provided with a transmission member connected to an external power source, the outer end of the support shaft away from the transmission member is provided with a rotatable adjusting member, the adjusting member is axially restricted on the support shaft, and the adjusting member is threadedly connected to the sleeve.

[0008] Specifically, the inner end of the sleeve is provided with an annular boss, which is fixed to the center of the limiting plate.

[0009] Specifically, the boss is provided with studs, and the support shaft has multiple positioning grooves along the axial direction, and the studs can be embedded in different positioning grooves.

[0010] Specifically, the adjusting component is cylindrical, fitted around the support shaft, and threaded between the support shaft and the sleeve.

[0011] Specifically, the adjusting part is fixed with a wrench.

[0012] Specifically, a mating plane is provided between the outer side of the support shaft and the inner side of the sleeve, thereby achieving circumferential positioning.

[0013] Specifically, the support shaft is equipped with a retaining ring and a limiting step, which together axially press against the adjusting component.

[0014] Specifically, the limiting plate has a positioning post on the side near the clamping part, and the distance between the positioning post and the support shaft is adjustable.

[0015] Specifically, the clamping components include a support, a clamping plate, and an elastic element. The clamping plate can be inserted into the support in a swinging manner. The clamping plate and the support are respectively provided with relatively aligned clearance holes for the outer support shaft to pass through. The elastic element applies a reset spring force to the clamping plate so that the clamping plate remains in a swinging clamping state. The clamping plate extends partially out of the support so that the clamping plate can be aligned by external force.

[0016] Specifically, the support includes a first seat body and a second seat body that are interlocked and locked together, with a locking plate located between the first seat body and the second seat body; the second seat body has a receiving groove for the locking plate to swing; the locking plate abuts against the second seat body in the swing state, and abuts against the first seat body in the upright state; when the locking plate is uprighted by external force, the clearance hole of the locking plate and the clearance hole of the support are arranged coaxially; after the external force is released and the elastic element drives the locking plate to swing, the clearance hole of the locking plate and the clearance hole of the support are not arranged coaxially.

[0017] The beneficial effects of this invention are:

[0018] The high-density integrated circuit lead frame reel adjustment device of the present invention, in use, has the center of the reel supported by a sleeve passing through it. A clamping component and a limiting plate together limit the reel axially. When it is necessary to adjust the distance between the reel and the limiting plate, or after replacing the reel with one of different sizes, external force is used to rotate the adjusting component. The adjusting component, through its thread, drives the sleeve and the limiting plate to move axially along the support shaft, preventing the material strip on the reel from scraping against the limiting plate, thus avoiding dust and deformation problems. Even without stopping the machine, the position of the limiting plate can be finely adjusted via the adjusting component, making adjustment convenient and simple. Furthermore, the adjusting component is located at the outer end of the support shaft, providing greater operating space. In practice, if necessary, the position of the clamping component on the support shaft can also be adjusted to meet a wider range of adjustments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the high-density integrated circuit lead frame reel adjustment device in the embodiment.

[0020] Figure 2 This is a cross-sectional perspective view of the high-density integrated circuit lead frame reel adjustment device in the embodiment.

[0021] Figure 3 This is an exploded view of the high-density integrated circuit lead frame reel adjustment device in the embodiment.

[0022] Figure 4 This is a cross-sectional perspective view of the clamping component in the embodiment.

[0023] Figure label:

[0024] Support shaft 1, retaining ring 11, positioning groove 12;

[0025] Sleeve 2, Boss 21, Stud 22;

[0026] Limiting plate 3, positioning post 31

[0027] Clamping component 4, first seat 41, limiting groove 411, second seat 42, receiving groove 421, clamping plate 43, limiting post 44, elastic component 45, clearance hole 46;

[0028] Transmission component 5;

[0029] Adjusting component 6;

[0030] 7. Wrench. Detailed Implementation

[0031] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0032] The high-density integrated circuit lead frame reel adjustment device of this embodiment, such as Figures 1 to 4As shown, the device includes a support shaft 1, with a sleeve 2 for supporting the coil material on the outer side of the support shaft 1. The sleeve 2 is divided by a limiting plate 3 and a clamping member 4. The clamping member 4 is detachably fitted onto the outside of the sleeve 2. The sleeve 2 and the limiting plate 3 are fixed to each other. There is a plane between the outer side of the support shaft 1 and the inner side of the sleeve 2 that is in close contact, so that the limiting plate 3 and the sleeve 2 can move along the axial direction of the support shaft 1 and be limited in the circumferential direction. The inner end of the support shaft 1 near the limiting plate 3 is provided with a transmission member 5 that is connected to an external power source. The transmission member 5 is a gear, which is connected to an external motor to drive the support shaft 1 to rotate. The outer end of the support shaft 1 away from the transmission component 5 is provided with a rotatable adjusting component 6. The adjusting component 6 is cylindrical and is sleeved on the outside of the support shaft 1. The support shaft 1 is provided with a retaining ring 11 and a limiting step. The retaining ring 11 and the limiting step together press against the adjusting component 6 in the axial direction, so that the adjusting component 6 is restricted in the axial direction of the support shaft 1 and cannot move, but can rotate around its own axis in the circumferential direction. The outer wall of the adjusting component 6 is threadedly connected to the inner wall of the sleeve 2.

[0033] Specifically, the inner end of the sleeve 2 is integrally formed with an annular boss 21. The boss 21 and the center of the limiting plate 3 are fixed together by bolts to form a whole. The boss 21 is radially provided with studs 22, and the support shaft 1 is provided with multiple positioning grooves 12 along the axial direction. After the limiting plate 3 and the boss 21 move to the preset position, the studs 22 can be embedded in the corresponding positioning grooves 12, so that the support shaft 1 and the limiting plate 3 rotate together in the working state.

[0034] In this embodiment, a wrench 7 is fixed to the adjusting component 6 to facilitate manual adjustment. During operation and adjustment, first rotate the stud 22 to disengage it from the positioning groove 12, and then rotate the wrench 7 to drive the adjusting component 6 to rotate. This, in turn, drives the sleeve 2 and the limiting plate 3 to move axially for adjustment via the thread.

[0035] In this embodiment, the limiting plate 3 is provided with two positioning posts 31 on the side near the clamping member 4, which are used to insert into the coil for positioning, so that the coil rotates together with the limiting plate 3. The distance between the positioning post 31 and the support shaft 1 is adjustable, that is, the limiting plate 3 has an elongated hole, and the end of the positioning post 31 is clamped in the elongated hole. By manually applying a sufficiently large force, the positioning post 31 can be slid and adjusted along the elongated hole.

[0036] Regarding clamping component 4, the main features are as follows: Figure 4 As shown, it includes a support, a locking plate 43, and an elastic element 45. The support includes a first seat body 41 and a second seat body 42 that are fastened and locked together by bolts. The locking plate 43 can be oscillatingly inserted between the first seat body 41 and the second seat body 42. The second seat body 42 has a convex-shaped receiving groove 421 for the locking plate 43 to swing. The locking plate 43 is adapted to the shape of the receiving groove 421.

[0037] The elastic element 45 is a spring. The first seat 41 has a limiting groove 411 for the elastic element 45 to be inserted into, and the locking plate 43 has a limiting post 44 for the elastic element 45 to be fitted into. One end of the spring abuts against the support, and the other end of the spring abuts against the locking plate 43, applying a restoring force to the locking plate 43 so that the locking plate 43 remains in the tilted locking state shown in the figure. In the tilted state, the locking plate 43 abuts against the second seat 42. The locking plate 43 extends partially beyond the support to allow external force to straighten the locking plate 43. In the straightened state, the locking plate 43 abuts against the first seat 41, at which time the limiting post 44 is inserted into the limiting groove 411. The part of the locking plate 43 that extends beyond the support is bent to facilitate finger pressing and swinging.

[0038] Both the clamping plate 43 and the support have aligned clearance holes 46 for the outer support shaft 1 to pass through. When the clamping plate 43 is aligned by external force, the projected area of ​​the clearance holes 46 along the axial direction of the support shaft 1 increases, thus creating a gap between the support shaft 1 and the clearance holes 46 of the clamping plate 43. The support can slide relative to the support shaft 1. Ideally, the clearance holes 46 of the clamping plate 43 and the support are coaxially arranged. After the external force is released and the elastic element 45 drives the clamping plate 43 to deflect, the clearance holes 46 of the clamping plate 43 and the support are no longer coaxially arranged. The projected area of ​​the clearance holes 46 along the axial direction of the support shaft 1 decreases, and the wall of the clearance holes 46 of the clamping plate 43 presses against the support shaft 1 and locks together. The entire clamping element 4 cannot move along the support shaft 1, thus axially locking the tray installed outside the support shaft 1.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 mechanical connection or an electrical connection; 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 invention based on the specific circumstances.

[0040] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention 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 the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A high-density integrated circuit lead frame reel adjustment device, characterized in that: The system includes a support shaft, with a sleeve fitted around its outer side to support the coil. The sleeve is divided into a limiting plate and a clamping element, the latter being detachably fitted onto the sleeve. The sleeve and limiting plate are fixed to each other, and both the limiting plate and sleeve are circumferentially limited by axial movement along the support shaft. A transmission component connecting to an external power source is located at the inner end of the support shaft near the limiting plate, while a rotatable adjusting component is located at the outer end of the support shaft away from the transmission component. The adjusting component is axially restricted within the support shaft and is threadedly connected to the sleeve. The clamping element includes a support, a clamping plate, and an elastic element. The clamping plate is oscillatingly inserted into the support. Both the clamping plate and the support have aligned clearance holes for the outer support shaft to pass through. The elastic element applies a restoring force to the clamping plate, maintaining its oscillating clamping state. A portion of the clamping plate extends beyond the support for external force manipulation. The device consists of a aligning plate and a support. The support includes a first seat and a second seat that interlock and lock together. The aligning plate is located between the first and second seats and extends beyond the support for operation by external force. The second seat has a receiving groove for the aligning plate to swing. In the swinging state, the aligning plate abuts against the second seat, and in the aligned state, it abuts against the first seat. When the aligning plate is in the external force state, the clearance holes of the aligning plate and the support are coaxially arranged to increase the axial projection area of ​​the clearance holes along the support shaft. This creates a gap between the support shaft and the clearance holes of the aligning plate, allowing the support to slide relative to the support shaft. After the external force is released and the elastic element drives the aligning plate, the clearance holes of the aligning plate and the support are no longer coaxially arranged. This reduces the axial projection area of ​​the clearance holes along the support shaft, and the wall of the clearance holes abuts against the support shaft, locking them together.

2. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: The inner end of the sleeve is provided with an annular boss, which is fixed to the center of the limiting plate.

3. The high-density integrated circuit lead frame reel adjustment device according to claim 2, characterized in that: The boss is fitted with a stud, and the support shaft has multiple positioning grooves along the axial direction, allowing the stud to be embedded in different positioning grooves.

4. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: The adjusting component is cylindrical, fitted around the support shaft, and threaded between the support shaft and the sleeve.

5. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: The adjusting part is fixed with a wrench.

6. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: A mating plane is provided between the outer side of the support shaft and the inner side of the sleeve, thereby achieving circumferential positioning.

7. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: The support shaft is equipped with a retaining ring and a limiting step, which together axially press against the adjusting component.

8. The high-density integrated circuit lead frame reel adjustment device according to claim 1, characterized in that: The limiting plate has a positioning post on the side near the clamping part, and the distance between the positioning post and the support shaft is adjustable.

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