High-density integrated circuit lead frame coil disc on-line fine adjustment mechanism

Abstract

The present application relates to the technical field of feeding equipment, in particular to an online fine adjustment mechanism for a high-density integrated circuit lead frame coil disc, comprising a support shaft for supporting the coil disc, the support shaft is provided with a limiting plate and a clamping part, the clamping part is detachably sleeved on the support shaft, the limiting plate can move along the axial direction of the support shaft and is limited in the circumferential direction, the support shaft is provided with a rotatable adjusting rod, the adjusting rod is threadedly connected with the limiting plate, and the end of the adjusting rod penetrates out of the support shaft. When it is necessary to adjust the distance between the coil disc and the limiting plate or the coil disc of different sizes is replaced, external force is used to rotate the adjusting rod, the limiting plate is driven to move along the axial direction of the support shaft, the side edge of the material belt on the coil disc is prevented from being scraped to the limiting plate, dust and deformation problems are avoided, the adjustment is convenient and simple, the adjusting rod penetrates out of the support shaft, and there is a larger operation space. In actual use, the position of the clamping part on the support shaft can also be adjusted as necessary, so that a larger range of adjustment can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of feeding equipment, in particular to an online fine adjustment mechanism for a high-density integrated circuit lead frame coil disc. BACKGROUND

[0002] The high-density integrated circuit lead frame is a basic component for manufacturing integrated circuit semiconductor elements. In order to meet the needs of manufacturing integrated circuit semiconductor elements, the surface of the lead frame needs to be partially plated with silver or nickel-palladium-gold. Electroplating refers to a surface processing method in which, in a salt solution containing pre-plated metal, the pre-plated metal cations in the plating solution are deposited on the surface of the substrate metal as the cathode through electrolysis, forming a plating layer. During electroplating, the plating metal or other insoluble material serves as the anode, and the workpiece to be plated serves as the cathode. The cations of the plating metal are reduced on the surface of the workpiece to be plated to form a plating layer.

[0003] The high-density integrated circuit lead frame to be plated is in the form of a strip, which is wound on a coil disc, and then the coiled lead frame and the coil disc are inserted on a support shaft. In this way, under the traction of an external force, the strip-shaped lead frame continuously feeds forward for electroplating. The electroplated lead frame is then coiled by the coil disc.

[0004] After the coil disc with the electroplated lead frame is mounted on the support shaft, a clamping block needs to be used to clamp it to prevent the coil disc from detaching from the support shaft during the feeding process. The problem is that the widths of the multiple frame strips differ. If the position of the strip on the support shaft remains unchanged, due to the different widths of the coiled strips, when the coiled strip is too wide or jumps, the side of the lead frame strip will rub against the clamping disc, causing the strip to have dust scraped off the edge or the side to deform, affecting the processing efficiency. Therefore, the position of the coil disc needs to be adjusted according to the width of the strip or when switching to a coil disc of a different width, so that the strip can move along the desired trajectory. However, the existing support shaft is difficult to adjust, or the adjustment method is too complex, which is inconvenient for operation. SUMMARY

[0005] In view of the above technical problems in the prior art, the present application provides an online fine adjustment mechanism for a high-density integrated circuit lead frame coil disc.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The online fine adjustment mechanism for a high-density integrated circuit lead frame coil disc comprises a support shaft for supporting the coil disc, a limiting plate and a clamping member are arranged on the support shaft, the clamping member is detachably sleeved on the support shaft, the limiting plate can move axially along the support shaft while being limited in the circumferential direction, a rotatable adjusting rod is arranged on the support shaft, the adjusting rod is threadedly connected with the limiting plate, and the end of the adjusting rod is arranged outside the support shaft, and the adjusting rod can only be rotated under external force.

[0008] Specifically, a connecting seat is fixed at the center of the limiting plate, a long hole in the axial direction is formed in the middle of the supporting shaft, the connecting seat is embedded in the long hole, the adjusting rod is threadedly connected with the connecting seat, thereby giving the limiting plate an axial movement space and a circumferential limit.

[0009] Specifically, the adjusting rod comprises a light rod section and a threaded section, a bearing is arranged between the light rod section and the supporting shaft, and the threaded section is matched with the connecting seat.

[0010] Specifically, the threaded section is located at the end of the adjusting rod or at the middle of the adjusting rod.

[0011] Specifically, the end of the adjusting rod that is out of the supporting shaft is fixed with a holding block, an elastic clamping structure is arranged between the holding block and the supporting shaft, the elastic clamping structure comprises a plurality of clamping columns and a plurality of clamping grooves arranged in a ring shape, the end of the clamping column is embedded in the clamping groove, and the clamping column is switched to be embedded in different clamping grooves under the rotation of external force.

[0012] Specifically, the clamping column is arranged in the holding block, the clamping groove is arranged on the end face of the supporting column, and the end of the clamping column is provided with a ball, which is elastically embedded in the clamping groove.

[0013] Specifically, a positioning column is arranged on the side of the limiting plate close to the clamping member, and the distance between the positioning column and the supporting shaft is adjustable.

[0014] Specifically, the clamping member comprises a support, a clamping plate and an elastic member, the clamping plate is swingably inserted into the support, the clamping plate and the support are respectively provided with a relatively aligned accommodation hole through which the peripheral supporting shaft passes, and the elastic member applies a reset elastic force to the clamping plate, so that the clamping plate remains in a state of being deviated and clamped; the clamping plate partially extends out of the support, so as to be operated by external force to swing the clamping plate.

[0015] Specifically, the support comprises a first seat body and a second seat body that are buckled and locked with each other, and the clamping plate is located between the first seat body and the second seat body; the second seat body is provided with a receiving groove for the clamping plate to swing; the clamping plate abuts against the second seat body in the deviated state, and the clamping plate abuts against the first seat body in the swing state; in the state of swinging the clamping plate by external force, the accommodation hole of the clamping plate and the accommodation hole of the support are coaxially arranged, and after the clamping plate is deviated by the elastic member driven by the release of external force, the accommodation hole of the clamping plate and the accommodation hole of the support are non-coaxially arranged.

[0016] Specifically, the clamping member comprises a ring seat and a knob, the ring seat is sleeved outside the supporting shaft, and the knob is threadedly passed through the ring seat to abut against the supporting shaft.

[0017] The present application has the following beneficial effects:

[0018] The high-density integrated circuit lead frame coil disc on-line fine adjustment mechanism of the present application uses a support shaft to pass through the center of the coil disc to support it, and the clamping piece and the limiting plate jointly limit the coil disc in the axial direction; when it is necessary to adjust the distance between the coil disc and the limiting plate, or after replacing the coil disc of different size specifications, an external force is used to rotate the adjusting lever, which drives the limiting plate to move along the axial direction of the support shaft through the thread, so that the side edge of the material belt on the coil disc is prevented from being scraped against the limiting plate, thereby avoiding the problems of dust and deformation. Even in the case of non-stop, the position of the limiting plate can be fine adjusted through the adjusting lever, which is convenient and simple to adjust, and the adjusting lever penetrates out of the support shaft, so that there is more operation space. In practice, the position of the clamping piece on the support shaft can also be adjusted as necessary to meet the adjustment in a larger range. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the high-density integrated circuit lead frame coil disc on-line fine adjustment mechanism in the embodiment.

[0020] Figure 2 It is a sectional view of the structure. Figure 1

[0021] Figure 3 It is another structure schematic view of the high-density integrated circuit lead frame coil disc on-line fine adjustment mechanism in the embodiment, which hides the transmission gear.

[0022] Figure 4 It is a sectional view of the structure. Figure 3

[0023] Figure 5 It is a sectional view of the clamping piece in the embodiment.

[0024] Reference signs:

[0025] Support shaft 1, long hole 11, clamping groove 12;

[0026] Bearing seat 2, transmission gear 3;

[0027] Clamping piece 4, first seat body 41, limiting groove 411, second seat body 42, accommodating groove 421, clamping plate 43, limiting column 44, elastic piece 45, accommodation hole 46, ring seat 47, knob 48;

[0028] Limiting plate 5, positioning column 51;

[0029] Linking seat 6;

[0030] Adjusting lever 7, light lever section 71, threaded section 72;

[0031] Grip block 8, clamping column 81, ball 82. DETAILED DESCRIPTION

[0032] ​​The application will be described in detail below with reference to specific embodiments and drawings.

[0033] The on-line fine adjustment mechanism of the high-density integrated circuit lead frame coil disc of the embodiment, as shown in Figure 1 and Figure 2 , comprises a support shaft 1 for supporting the coil disc, one end of the support shaft 1 is provided with a bearing seat 2 and a transmission gear 3, the transmission gear 3 is connected with an external motor to drive the support shaft 1 to rotate. The support shaft 1 is divided by a limiting plate 5 and a clamping member 4, the clamping member 4 is detachably sleeved on the support shaft 1, the center of the limiting plate 5 is fixed with a connecting seat 6, the middle part of the support shaft 1 is provided with a long hole 11 along the axial direction, the connecting seat 6 is embedded in the long hole 11, thereby giving the limiting plate 5 a moving space for axial movement and being limited in the circumferential direction. The support shaft 1 is provided with a rotatable adjusting rod 7, the adjusting rod 7 comprises a light rod section 71 and a threaded section 72, the light rod section 71 is provided with a bearing between the support shaft 1, so that the axial movement of the adjusting rod 7 is limited, but the adjusting rod 7 can rotate around its center line, the threaded section 72 of the adjusting rod 7 is matched with the connecting seat 6. One end of the adjusting rod 7 penetrates out of the support shaft 1, and only under the operation of external force, the adjusting rod 7 can rotate.

[0034] In the embodiment, the position of the threaded section 72 can be at the end of the adjusting rod 7 as shown in Figure 1 and Figure 2 , or instead be located in the middle of the adjusting rod 7 as shown in Figure 3 and Figure 4 .

[0035] In the embodiment, in order to facilitate manual adjustment, the end of the adjusting rod 7 penetrating out of the support shaft 1 is fixed with a holding block 8, the holding block and the support shaft 1 are provided with an elastic clamping structure, the elastic clamping structure comprises a plurality of clamping columns 81 and a plurality of clamping grooves 12 distributed in a ring shape, the end of the clamping column 81 is embedded in the clamping groove 12, under the rotation of external force, the clamping column 81 is switched to be embedded in different clamping grooves 12. The clamping column 81 is arranged in the holding block 8, the clamping groove 12 is arranged on the end face of the support column, the end of the clamping column 81 is provided with a ball 82, the ball 82 is elastically embedded in the clamping groove 12, in this way, on the one hand, the adjusting rod 7 will not rotate in the natural state, only when the holding block is subjected to sufficient torsion force by manual operation, the holding block can rotate, at the same time, the ball 82 is separated from the other clamping grooves 12; on the other hand, the ball 82 is embedded in different clamping grooves 12 to give a certain touch to the manual operation, and the adjustment range is perceived according to the number of times of switching the clamping grooves 12 by the ball 82.

[0036] In the embodiment, the side of the limiting plate 5 close to the clamping member 4 is provided with two positioning columns 51 for inserting the coil disc to position, so that the coil disc rotates together with the limiting plate 5, the distance between the positioning column 51 and the support shaft 1 is adjustable, that is, the limiting plate 5 is provided with a long hole, the end of the positioning column 51 is clamped in the long hole, and a large enough force applied by manual operation can adjust the positioning column 51 to slide along the long hole.

[0037] As to the clamping member 4, one structure is shown in Fig. 1, which comprises a ring seat 47 and a knob 48, the ring seat 47 is sleeved on the support shaft 1, and the knob 48 is radially screwed through the ring seat 47 to abut against the support shaft 1. Another structure is shown in Fig. 2, which comprises a support, a clamping plate 43 and a spring 45, the support comprises a first seat body 41 and a second seat body 42 which are locked by bolts, the clamping plate 43 is swingably inserted between the first seat body 41 and the second seat body 42, the second seat body 42 is provided with a "U" shaped accommodating groove 421 for the swing of the clamping plate 43, and the clamping plate 43 is shaped to fit the accommodating groove 421. Figure 1 Figures 3 to 5 The spring 45 is a spring, the first seat body 41 is provided with a limiting groove 411 for the insertion of the spring 45, the clamping plate 43 is provided with a limiting column 44 for the sleeving of the spring 45, one end of the spring abuts against the support, and the other end of the spring abuts against the clamping plate 43 to exert a restoring force on the clamping plate 43, so that the clamping plate 43 is kept in the swing clamping state as shown in the figure, and the clamping plate 43 abuts against the second seat body 42 in the swing state. The clamping plate 43 is partially extended out of the support, so that an external force can be used to swing the clamping plate 43, and the clamping plate 43 abuts against the first seat body 41 in the swing state, and the limiting column 44 is inserted into the limiting groove 411. The extended part of the clamping plate 43 is bent, so that the clamping plate 43 can be easily swung by pressing with fingers.

[0038] The clamping plate 43 and the support are respectively provided with aligned allowing holes 46 for the passing of the support shaft 1, in the swing state of the clamping plate 43 by the external force, the axial projection area of the allowing hole 46 of the clamping plate 43 is increased, so that there is a gap between the support shaft 1 and the allowing hole 46 of the clamping plate 43, the support can slide relative to the support shaft 1, and the best state is that the allowing hole 46 of the clamping plate 43 and the allowing hole 46 of the support are coaxially arranged. After the external force is released and the spring 45 drives the clamping plate 43 to swing, the allowing hole 46 of the clamping plate 43 and the allowing hole 46 of the support are not coaxially arranged, the axial projection area of the allowing hole 46 of the clamping plate 43 is decreased, the hole wall of the allowing hole 46 of the clamping plate 43 abuts against the support shaft 1 to be locked, the whole clamping member 4 cannot move along the support shaft 1, and thus the tray installed on the support shaft 1 is axially clamped.

[0039] In the description of the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the description of the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. ​

[0041] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail herein.

[0042] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. An online fine-tuning mechanism for high-density integrated circuit lead frame reel, characterized by: The support shaft comprises a support shaft for supporting a roll disc, a limiting plate and a clamping member, the clamping member is detachably sleeved on the support shaft, the limiting plate can move axially along the support shaft and is limited in the circumferential direction, the support shaft is provided with a rotatable adjusting rod, the adjusting rod is threadedly connected with the limiting plate, and the end of the adjusting rod is arranged outside the support shaft and can be rotated only under the action of external force. The clamping member comprises a support base, a clamping plate and an elastic member, the clamping plate is swingably inserted into the support base, the clamping plate and the support base are respectively provided with aligned clearance holes for the peripheral support shaft to pass through, and the elastic member applies a restoring elastic force to the clamping plate to make the clamping plate keep a swing clamping state; the clamping plate is partially extended outside the support base to swing the clamping plate by external force. The support base comprises a first seat body and a second seat body which are locked with each other, the clamping plate is located between the first seat body and the second seat body and is extended outside the support base to swing the clamping plate by external force; the second seat body is provided with a receiving groove for swing movement of the clamping plate; the clamping plate abuts against the second seat body in the swing state, and the clamping plate abuts against the first seat body in the swing state; in the state of swinging the clamping plate by external force, the clearance hole of the clamping plate and the clearance hole of the support base are coaxially arranged to increase the axial projection area of the clearance hole of the clamping plate, so that there is a gap between the support shaft and the clearance hole of the clamping plate, and the support base can slide relative to the support shaft; after the elastic member drives the clamping plate to swing after the external force is released, the clearance hole of the clamping plate and the clearance hole of the support base are non-coaxially arranged to reduce the axial projection area of the clearance hole of the clamping plate, and the clearance hole wall of the clamping plate abuts against the support shaft to be locked with each other. The side of the limiting plate close to the clamping member is provided with a positioning column, and the distance between the positioning column and the support shaft is adjustable.

2. The on-line trimming mechanism for high-density integrated circuit lead frame reel of claim 1, wherein: The center of the limiting plate is fixed with a connecting seat, the middle part of the support shaft is provided with a long hole in the axial direction, the connecting seat is embedded in the long hole, and the adjusting rod is threadedly connected with the connecting seat, so as to provide a moving space for the axial movement of the limiting plate and limit the limiting plate in the circumferential direction.

3. The on-line trimming mechanism for high density integrated circuit lead frame reel of claim 2, wherein: The adjusting rod comprises a smooth rod section and a threaded section, a bearing is arranged between the smooth rod section and the support shaft, and the threaded section is matched with the connecting seat.

4. The on-line trimming mechanism for high-density integrated circuit lead frame web reel according to claim 3, characterized in that: The threaded section is located at the end of the adjusting rod or in the middle of the adjusting rod.

5. The on-line trimming mechanism for high density integrated circuit lead frame web reel according to claim 1, characterized in that: The end of the adjusting rod outside the support shaft is fixed with a holding block, an elastic clamping structure is arranged between the holding block and the support shaft, the elastic clamping structure comprises a plurality of clamping columns and a plurality of clamping grooves arranged in a ring shape, the end of the clamping column is embedded in the clamping groove, and under the action of external force, the clamping column is switched to be embedded in different clamping grooves.

6. The on-line trimming mechanism for high density integrated circuit lead frame web reel according to claim 5, characterized in that: The clamping column is arranged in the holding block, the clamping groove is arranged on the end face of the support column, and the end of the clamping column is provided with a ball which is elastically embedded in the clamping groove.

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