Quad flat no-lead (QFN) rear laminator feeding gripper provided with detection mechanism and capable of preventing repeated lamination

Abstract

The utility model relates to the technical field of film sticking machines, in particular to a QFN rear film sticking machine feeding gripper with a detection mechanism for preventing repeated film sticking, which comprises a main support, a disc is mounted at the bottom of the main support, a plurality of telescopic rods are mounted on the side wall of the main support, and the telescopic rods are connected with the detection mechanism. A plurality of telescopic rods are evenly distributed on the side wall of the main support in an annular array, auxiliary supports are installed at the outer ends of the telescopic rods, side plates are installed at the bottoms of the auxiliary supports, the side plates and the disc are located on the same horizontal plane, movable grooves are formed in the outer sides of the side plates, clamping plates are installed in the movable grooves, and adjusting assemblies are installed at the two ends of the side wall of each clamping plate. The QFN rear laminator feeding gripper with the detection mechanism and the repeated lamination prevention function has the advantages that the telescopic rod is used for driving the side plate to move, meanwhile, the adjusting assembly drives the clamping plate to move, products of different sizes and thicknesses can be clamped conveniently, and the use efficiency of a laminator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of film sticking machine, concretely to a QFN post film sticking machine feeding gripper with detection mechanism and anti-duplicate film sticking. BACKGROUND

[0002] In the semiconductor packaging process, QFN film sticking machine is often used for film sticking treatment of products, and feeding gripper is needed to clamp the products, so that the products are fixed and clamped conveniently, and duplicate film sticking is avoided in the film sticking process, thereby production efficiency and packaging quality are improved. Since there are front film sticking and post film sticking in the film sticking treatment, the front film sticking product is heated by a heating block, and the expansion coefficients of the film and the copper frame are different, which leads to difficult parameter surface debugging, many alarms and low operation efficiency in operation. Therefore, QFN products in the industry are mostly switched to post film sticking operation mode. However, the imported film sticking machine and the domestic post film sticking machine in the industry cannot automatically identify whether the product loaded is an un-stuck film product or a stuck film product when operating, but only rely on the pre-loading inspection of the operator.

[0003] The existing QFN post film sticking machine feeding gripper with detection mechanism and anti-duplicate film sticking can identify whether the film piece is a stuck film product by triggering a sensor alarm through an inductive probe on the feeding gripper. This gripper cannot adjust the size of the clamped product, and can only clamp single variety products. When clamping different varieties, different size clamping hands need to be replaced, thereby reducing the use efficiency of the film sticking machine.

[0004] Therefore, the utility model provides a QFN post film sticking machine feeding gripper with detection mechanism and anti-duplicate film sticking to solve the problems in the above background. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a QFN post film sticking machine feeding gripper with detection mechanism and anti-duplicate film sticking to solve the problems in the above background.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a QFN post film sticking machine feeding gripper with detection mechanism and anti-duplicate film sticking, which comprises a main support, a disc is installed at the bottom of the main support, a plurality of telescopic rods are installed on the side wall of the main support, and the telescopic rods are evenly distributed in a ring array on the side wall of the main support.

[0007] A secondary support is installed at the outer end of the telescopic rod, a side plate is installed at the bottom of the secondary support, the side plate and the disc are located on the same horizontal plane, a movable groove is formed on the outer side of the side plate, a clamping plate is installed in the movable groove, and an adjusting assembly is installed at both ends of the side wall of the clamping plate.

[0008] Preferably, the adjusting assembly comprises a threaded rod and a limiting rod, the bottom of the threaded rod and the limiting rod penetrates the side wall of the clamping plate and enters the inside of the side plate, and the threaded rod and the limiting rod are arranged in parallel with each other.

[0009] Preferably, the top of the threaded rod and the limiting rod is provided with a limiting block, the bottom of the threaded rod and the limiting rod is provided with a rotating block, the bottom of the rotating block is provided with a fixing block, and the side wall of the fixing block is provided with a slot.

[0010] Preferably, the side wall of the clamping plate is provided with a hole slot, the inside of the hole slot is provided with a dismounting assembly, and the inner end of the dismounting assembly enters the inside of the slot of the fixing block.

[0011] Preferably, the dismounting assembly comprises an insertion block, the insertion block passes through the hole slot and is fixed in the inside of the slot, and the outer end of the insertion block is provided with a pull plate.

[0012] Preferably, the inner wall of the pull plate is provided with a spring, and the inner end of the spring is fixed on the side wall of the clamping plate.

[0013] Preferably, the bottom of the disc and the side plate is provided with a suction mechanism, the inside of the disc is provided with a telescopic probe, and the top of the telescopic probe is provided with an alarm.

[0014] Compared with the prior art, the QFN rear film pasting machine feeding gripper with a detection mechanism and anti-repeated film pasting has the following beneficial effects:

[0015] The QFN rear film pasting machine feeding gripper with a detection mechanism and anti-repeated film pasting disclosed by the utility model utilizes the telescopic rod to drive the side plate to move, simultaneously, the adjusting assembly drives the clamping plate to move, the products with different sizes and thicknesses are conveniently clamped and taken, and the clamping and taking efficiency and the use efficiency of the film pasting machine are increased. ACCURACY OF DRAWINGS

[0016] Figure 1 It is a perspective structural schematic view of the QFN rear film pasting machine feeding gripper.

[0017] Figure 2 It is a sectional structural schematic view of the QFN rear film pasting machine feeding gripper.

[0018] Figure 3 It is a perspective structural schematic view of the adjusting assembly of the auxiliary support and the side plate.

[0019] Figure 4 It is a perspective structural schematic view of the dismounting assembly.

[0020] In the drawing: 1, main support; 2, telescopic rod; 3, auxiliary support; 4, side plate; 5, movable groove; 6, clamping plate;

[0021] 7, adjusting assembly; 8, threaded rod; 9, limiting rod; 10, limiting block; 11, rotating block; 12, fixed block; 13, slot; 14, hole groove; 15, dismounting assembly; 16, plug block; 17, pull plate; 18, spring;

[0022] 19, disc; 20, suction mechanism; 21, telescopic probe; 22, alarm. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme of the utility model carry out clearly, complete description, and the advantage is more clear and distinct, the following combining the drawings to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0024] Embodiment one

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of QFN post film machine loading gripper with detection mechanism anti-repeatedly pasting film, the QFN post film machine loading gripper with detection mechanism anti-repeatedly pasting film includes: main support 1, the bottom of main support 1 is installed with disc 19, the side wall of main support 1 is installed with several telescopic rods 2, and several telescopic rods 2 are evenly distributed on the side wall of main support 1 in annular array;

[0026] The outer end of telescopic rod 2 is installed with vice support 3, the bottom of vice support 3 is installed with side plate 4, side plate 4 is located on the same horizontal plane with disc 19, the outside of side plate 4 is provided with movable slot 5, movable slot 5 is installed with clamping plate 6 in the inside, and clamping plate 6 is installed with adjusting assembly 7 in the side wall both ends;

[0027] The bottom of disc 19 and side plate 4 is installed with suction mechanism 20, and telescopic probe 21 is installed in the inside of disc 19, and the top of telescopic probe 21 is installed with alarm 22;

[0028] In use, the side wall of the main support 1 drives the side plate 4 to move through the telescopic rod 2, and then drives the clamping plate 6 to move, and the adjusting assembly 7 adjusts the up-down movement of the clamping plate 6, so that the clamping plate 6 can clamp products of different thicknesses, and the clamping is firm. The circular disc 19 and the bottom of the side plate 4 can grasp products of different sizes through the adsorption mechanism 20. Before the product is pasted with a film, the telescopic probe 21 detects whether the product surface has been pasted with a film. If the product surface has been pasted with a film, the telescopic probe 21 is retracted to trigger the alarm 22, and feedback is given to the operator, so that secondary pasting of the film is avoided, and quality problems such as a large amount of glue overflow and a thin product thickness caused by the product being pasted with a film and then being plastic-wrapped are avoided. If the product surface has not been pasted with a film, the product can be directly pasted with a film.

[0029] Embodiment two

[0030] In order to fix the adjusting assembly 7 when the adjusting assembly 7 drives the clamping plate 6 to move, the adjusting assembly 7 is fixed on the basis of the embodiment one. The adjusting assembly 7 comprises a threaded rod 8 and a limiting rod 9. The bottom of the threaded rod 8 and the bottom of the limiting rod 9 penetrate the side wall of the clamping plate 6 and penetrate into the inside of the side plate 4. The threaded rod 8 and the limiting rod 9 are placed parallel to each other. The top of the threaded rod 8 and the top of the limiting rod 9 are both installed with a limiting block 10. The bottom of the threaded rod 8 and the bottom of the limiting rod 9 are both installed with a rotating block 11. The bottom of the rotating block 11 is installed with a fixing block 12. The side wall of the fixing block 12 is provided with a slot 13.

[0031] In use, the threaded rod 8 rotates under the action of the limiting rod 9, so that the clamping plate 6 can move up and down in the inside of the movable groove 5, and the length of the clamping plate 6 at the bottom of the side plate 4 can be adjusted, so that products of different thicknesses can be clamped. The threaded rod 8 and the limiting rod 9 can be conveniently rotated under the action of the rotating block 11. The fixing block 12 can conveniently install and fix the threaded rod 8 and the limiting rod 9 in the inside of the side plate 4.

[0032] Embodiment three

[0033] In order to conveniently disassemble and assemble the adjusting assembly 7 and the clamping plate 6 and conveniently repair and replace the clamping plate 6, a hole slot 14 is provided in the side wall of the clamping plate 6. A disassembling assembly 15 is installed in the inside of the hole slot 14. The inner end of the disassembling assembly 15 penetrates into the inside of the slot 13 of the fixing block 12. The disassembling assembly 15 comprises an insertion block 16. The insertion block 16 penetrates through the hole slot 14 and penetrates into the inside of the slot 13 and is fixed. The outer end of the insertion block 16 is installed with a pull plate 17. The inner wall of the pull plate 17 is installed with a spring 18. The inner end of the spring 18 is fixed on the side wall of the clamping plate 6.

[0034] In use, the pull plate 17 in the disassembling assembly 15 drives the insertion block 16 to move into the inside of the slot 13 under the action of the inward pulling force provided by the spring 18, so that the fixing block 12 is fixed. The pull plate 17 is pulled outward, so that the insertion block 16 can move out of the inside of the slot 13, and the adjusting assembly 7 and the clamping plate 6 can be conveniently disassembled.

[0035] In actual use, before the product is pasted with the film, the surface of the product is detected by the telescopic probe 21 whether it is pasted with the film, if it is detected that it is pasted with the film, the telescopic probe 21 is contracted to trigger the alarm 22, and feedback to the operator, avoid secondary pasting film, make the product to the plastic sealing process lead to a large number of overflow and product thickness thin and other quality abnormal problems, if it is not detected that it is pasted with the film, the product can be directly pasted with the film operation processing, the side wall of the main support 1 moves the side plate 4 through the telescopic rod 2, and then drives the clamping plate 6 to move, and the adjusting assembly 7 adjusts the clamping plate 6 to move up and down, so that different thickness products can be clamped conveniently, and the clamping is not firm. The condition occurs, the disc 19 and the bottom of the side plate 4 are grabbed by the adsorption mechanism 20 to different size products, the threaded rod 8 rotates under the action of the limiting rod 9, the clamping plate 6 can be conveniently lifted and moved in the movable groove 5, the length of the clamping plate 6 at the bottom of the side plate 4 can be adjusted, the clamping plate 6 is convenient for clamping different thickness products, the threaded rod 8 and the limiting rod 9 are conveniently rotated under the action of the rotating block 11, the fixed block 12 is convenient for installing and fixing the threaded rod 8 and the limiting rod 9 in the inside of the side plate 4, the pull plate 17 is driven by the inward pulling force provided by the spring 18 to move the plug-in block 16 to the inside of the plug-in groove 13, the fixed block 12 is fixed, the pull plate 17 is pulled outward, the plug-in block 16 is moved out of the plug-in groove 13, the adjusting assembly 7 and the clamping plate 6 are conveniently disassembled.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A QFN post-film pasting machine with a detection mechanism for preventing repeated pasting of film, characterized in that: The loading gripper of the QFN post-film pasting machine with a detection mechanism for preventing repeated film pasting comprises a main support (1), the bottom of the main support (1) is provided with a disc (19), the side walls of the main support (1) are provided with a plurality of telescopic rods (2), and the telescopic rods (2) are evenly distributed in an annular array on the side walls of the main support (1); The outer ends of the telescopic rods (2) are provided with auxiliary supports (3), the bottoms of the auxiliary supports (3) are provided with side plates (4), the side plates (4) are located on the same horizontal plane as the disc (19), the outer sides of the side plates (4) are provided with movable grooves (5), the movable grooves (5) are internally provided with clamping plates (6), and the side walls of the clamping plates (6) are provided with adjusting assemblies (7) at both ends.

2. The QFN post-film sticking machine with a detection mechanism for preventing repeated film sticking according to claim 1, characterized in that: The adjusting assemblies (7) comprise threaded rods (8) and limiting rods (9), the bottoms of the threaded rods (8) and the limiting rods (9) penetrate through the side walls of the clamping plates (6) and enter the interiors of the side plates (4), and the threaded rods (8) and the limiting rods (9) are placed in parallel with each other.

3. The QFN post film pasting machine with detection mechanism and anti-repeated pasting film according to claim 2, characterized in that: The tops of the threaded rods (8) and the limiting rods (9) are provided with limiting blocks (10), the bottoms of the threaded rods (8) and the limiting rods (9) are provided with rotating blocks (11), the bottoms of the rotating blocks (11) are provided with fixed blocks (12), and the side walls of the fixed blocks (12) are provided with insertion grooves (13).

4. The QFN post film pasting machine with detection mechanism and anti-repeated pasting film according to claim 1, characterized in that: The side walls of the clamping plates (6) are provided with hole grooves (14), the interiors of the hole grooves (14) are provided with dismounting assemblies (15), and the inner ends of the dismounting assemblies (15) penetrate into the insertion grooves (13) of the fixed blocks (12).

5. The QFN post film sticking machine with detection mechanism and anti-repeated film sticking according to claim 4, characterized in that: The dismounting assemblies (15) comprise insertion blocks (16), the insertion blocks (16) penetrate through the hole grooves (14) and are fixed in the interiors of the insertion grooves (13), and the outer ends of the insertion blocks (16) are provided with pull plates (17).

6. The QFN post film sticking machine with detection mechanism and anti-repeated film sticking according to claim 5, characterized in that: The inner walls of the pull plates (17) are provided with springs (18), and the inner ends of the springs (18) are fixed on the side walls of the clamping plates (6).

7. The QFN post film sticking machine with detection mechanism and anti-repeated film sticking according to claim 1, characterized in that: The bottoms of the disc (19) and the side plate (4) are provided with adsorption mechanisms (20), the interior of the disc (19) is provided with a telescopic probe (21), and the top of the telescopic probe (21) is provided with an alarm (22).

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