CN115424962A - A post lamination machine - Google Patents

Abstract

The invention discloses a film spreading device, which comprises a base, a feeding mechanism, a feeding rail, a film spreading device, an oven mechanism, a feeding gripper, a discharging gripper, a receiving rail and a receiving mechanism, wherein the feeding mechanism is arranged on the base; the feeding mechanism and the receiving mechanism are respectively arranged on two sides of one side of the base; the feeding track, the film paving device, the oven mechanism and the material receiving track are arranged on the other side of the base side by side; the feeding gripper and the discharging gripper are arranged on the support above the feeding rail, the film paving mechanism, the oven mechanism and the material receiving rail. The automatic film sticking machine disclosed by the invention has the advantages that the automatic feeding, conveying, film sticking, high-temperature heating and discharging stacking processes of the lead frame are realized through the combination and reasonable arrangement of all mechanisms, the structure is compact, the occupied area is small, the automation degree is high, and the film sticking efficiency is greatly improved.

Description

A post lamination machine

technical field

The invention relates to a post-film laminating machine for automatically laminating a film on a lead frame in which a chip is first mounted and a lead wire is welded.

Background technique

The way of traditional mechanism film sticking is to stick the film on the frame first and then carry out processes such as chip mounting and wire bonding; as the chip production process changes, there is a gap between the pins and the film paper, and the film is pasted in advance. It cannot be pressed tightly and will shake, so a post-laminating machine was designed and developed for the change of chip production process.

Contents of the invention

The purpose of the present invention is to provide a post-film laminating machine that can realize automatic film lamination in response to the demand for post-film lamination.

In order to achieve the above object, the present invention adopts the following technical solutions:

A post-laminating machine, characterized in that it includes a base, a feeding mechanism, a feeding track, a film laying device, an oven mechanism, a feeding handle, a discharging handle, a receiving track and a receiving mechanism; the feeding The mechanism and the receiving mechanism are respectively arranged on one side and both sides of the base; the feeding track, the film laying device, the oven mechanism, and the receiving track are arranged side by side on the other side of the base; the feeding gripper and The discharge gripper is arranged on the support above the feeding track, the film laying mechanism, the oven mechanism and the receiving track;

The feeding mechanism is used to push the lead frame longitudinally onto the feeding track;

The feed track moves and positions the lead frame longitudinally for the feed gripper to grab;

The film laying device is used for cutting and spreading the film paper, and laminating it with the lead frame;

The feed gripper is used to grab the lead frame and move up, down, left, and right above the feed rail, film laying mechanism, and oven mechanism;

The oven mechanism is used to heat the lead frame after film pasting at high temperature;

The discharge gripper is used to grab the lead frame and move up and down, left and right above the receiving track in the oven mechanism;

The receiving track is used to longitudinally push the lead frame onto the receiving mechanism;

The receiving mechanism is used for receiving the lead frame.

It is further characterized in that: the feeding mechanism includes a bottom plate, a double-layer material box frame set on one side of the bottom plate, a material box handle and a material pushing mechanism set on the other side of the bottom plate; the material box frame There is a transmission device on the top, which transmits the material box to the handle of the material box; the handle of the material box is set on the lifting mechanism to clamp the material box; the pushing mechanism moves forward, from the material box The lead frame in the magazine is pushed longitudinally onto the feed rail in the front opening. The lead frames to be filmed are stacked in the magazine, and the magazine holder can place multiple magazines sideways at one time. The conveying device transports the material boxes one by one to the material box gripper, the material box gripper grabs the material box, and the pushing mechanism sequentially pushes the stacked lead frames from the opening to the feeding track. The device can realize the placement and automatic material pushing of multiple material boxes. When a certain material box is pushing material, there is no need to interrupt the material pushing, and the material box can be added from the side, which greatly improves the work efficiency and realizes uninterrupted work. The upper material box rack can place multiple material boxes. After the workpieces in the material box grabbed by the material box gripper are pushed, the material box gripper descends to the lower material box rack, and the empty material box is sent away to realize the empty space. Automatic collection of material boxes.

Its further feature is that: the receiving mechanism includes a bottom plate, a double-layer material box frame arranged on one side of the bottom plate, and a material box gripper set on the other side of the bottom plate; The device is used to transfer the material box to the handle of the material box; the handle of the material box is set on the lifting mechanism to clamp the material box. The structure of the receiving mechanism is similar to that of the feeding mechanism, except that a pushing mechanism is missing. Its working principle is similar to that of the feeding mechanism.

Further: the feeding track includes a feeding bracket that moves forward and backward along the guide rail, and the feeding bracket is driven to move by a pulley transmission mechanism.

Similarly, the structure of the receiving rail is similar to that of the feeding rail, except that there is an additional pushing mechanism to push the lead frame on the bracket into the magazine.

Further: the feed gripper includes a transmission assembly, a level and angle adjustment assembly, and a gripper assembly; the gripper assembly is connected below the level and angle adjustment assembly, and has opening and closing jaws for gripping Take the lead frame; the level and angle adjustment assembly and the gripper assembly are connected below the transmission assembly; the level and angle adjustment assembly includes a level adjustment component, an angle adjustment component and a floating plate for adjusting the gripper assembly The levelness and angle; the transmission assembly has a lifting device, and the lifting device drives the level and angle adjustment assembly and the gripper assembly to press down. Connect the gripper assembly directly to the level and angle adjustment assembly and the transmission assembly. The level and angle of the lead frame can be adjusted in advance through the level and angle adjustment assembly. After the gripper assembly grabs the lead frame, the action of the transmission assembly can directly move the It is pressed on the film, and the quality of the film is guaranteed due to the adjustment of the level and angle in the early stage. Greatly improved the efficiency of the film.

Similarly, the discharging gripper includes a gripper assembly that can be raised and lowered, and is used to grab the lead frame on the oven mechanism and place it on the receiving track.

Further: the oven mechanism includes a heat preservation cover, a plurality of heating platforms and a plurality of moving mechanisms; each heating platform corresponds to a moving mechanism, which is driven and pushed into the heat preservation cover by the moving mechanism. Multiple heating platforms can heat each lead frame independently, cooperate with the heat preservation cover to form multiple independent oven units, the mutual heating is not affected, and the heating temperature can also be independently controlled. The automatic loading and unloading of the lead frame can be realized by pushing through the moving mechanism.

It is further characterized in that: the film spreading device includes a film feeding mechanism, a film pulling mechanism, a film spreading mechanism, a film cutting mechanism and a bottom film winding mechanism; The film-drawing mechanism supplies the film; the film-drawing mechanism includes a liftable film-drawing head, and the film-drawing head is arranged on the moving mechanism for moving and stretching the adhesive film onto the film-laying mechanism; the film-laying The mechanism includes a vacuum film suction plate, which fixes the adhesive film on the vacuum film suction plate; the film cutting mechanism includes a retractable film cutting knife, which cuts the film paper at a set position; the bottom film winding mechanism It includes a bottom film winding wheel driven by a motor to wind the bottom film separated from the film paper. The film feeding mechanism and the bottom film winding mechanism are arranged on the same side, and the vacuum film suction plate and the film pulling head move above the vacuum film suction plate. The arrangement of the above components has a compact structure, a short film flow path, a high space utilization rate, and a small footprint.

Through the combination and reasonable arrangement of various mechanisms, the present invention realizes the process of automatic feeding, transmission, film application, high temperature heating and discharge stacking of the lead frame. It has a compact structure, a small footprint, and a high degree of automation, which greatly improves the efficiency of film application. .

Description of drawings

Figure 1 is a schematic diagram of the decomposition structure of the present invention.

Figure 2 is a schematic diagram of the feeding mechanism.

Figure 3 is a schematic diagram of the structure of the receiving mechanism.

Figure 4 is a schematic diagram of the feed track structure.

Figure 5 is a schematic diagram of the structure of the film laying device.

Figure 6 is a schematic diagram of the structure of the feed gripper, the discharge gripper and the bracket.

Figure 7 is an exploded schematic diagram of the feed gripper.

Figure 8 is a schematic diagram of the structure of the oven mechanism.

detailed description

As shown in Figure 1, a post-laminating machine includes a base 9, a feeding mechanism 1, a feeding track 2, a film laying device 3, an oven mechanism 5, a feeding handle 4, a discharging handle 6, and a receiving track 7 and receiving mechanism 8. The feeding mechanism 1 and the receiving mechanism 8 are respectively arranged on one side and both sides of the base 9 . The feeding track 2, the film laying device 3, the oven mechanism 5, and the receiving track 8 are arranged side by side on the other side of the base 9. The feed gripper 4 and the discharge gripper 6 are arranged on the feed track 2 , the film laying mechanism 3 , the oven mechanism 5 and the bracket 10 above the receiving track 7 .

As shown in FIG. 2 , the feeding mechanism includes a base plate 101 , a double-layer magazine frame 102 arranged on one side of the base plate 101 , a magazine handle 103 and a material pushing mechanism 104 arranged on the other side of the base plate 101 . There is a conveying device 105 on the magazine frame 102 , which conveys the magazine to the magazine gripper 103 . The material box gripper 103 is arranged on the lifting mechanism 106 to clamp the material box. The material pushing mechanism 104 moves forward, and pushes the lead frame in the material box longitudinally to the feeding track 2 from the front opening of the material box.

As shown in FIG. 3 , the receiving mechanism 8 is similar in structure to the feeding mechanism 1 , except that a pushing mechanism 104 is missing. Its working principle is also similar to the feeding mechanism 1 .

As shown in FIG. 4 , the feeding track 2 includes a feeding bracket 202 that moves forward and backward along a guide rail 201 , and the feeding bracket 202 is driven to move by a pulley transmission mechanism 203 .

Similarly, the structure of the receiving rail 7 is similar to that of the feeding rail 2, except that there is an extra pushing mechanism to push the lead frame on the bracket into the magazine.

As shown in FIG. 5 , the film laying device 3 includes a film supply mechanism, a film pulling mechanism, a film laying mechanism, a film cutting mechanism and a base film winding mechanism. The film feeding mechanism includes a film bin 301 and a guide wheel set 302, which supplies the film for the film pulling mechanism. The film pulling mechanism includes a liftable film pulling head 303, and the film pulling head 303 is arranged on the moving mechanism for moving and stretching the adhesive film onto the film laying mechanism. The film laying mechanism includes a vacuum suction film plate 304, on which the adhesive film is fixed. The film cutting mechanism includes a retractable film cutting knife 305, which cuts the film paper at a set position. The bottom film winding mechanism includes a bottom film winding wheel 307 driven by a motor 306 to wind the bottom film separated from the film paper.

As shown in FIGS. 6 and 7 , the feed gripper 4 includes a transmission assembly 401 , a level and angle adjustment assembly 402 , and a gripper assembly 403 . The gripper assembly 403 is connected below the level and angle adjustment assembly 402 and has opening and closing jaws 405 for clamping the lead frame. The level and angle adjustment assembly 402 and the handle assembly 403 are connected below the transmission assembly 401 . The level and angle adjustment assembly 402 includes a level adjustment component, an angle adjustment component and a floating plate for adjusting the levelness and angle of the handle assembly 403 . The transmission assembly 401 has a lifting device 404, and the lifting device 404 drives the level and angle adjustment assembly 402 and the handle assembly 403 to press down.

Similarly, the discharge gripper 6 includes a gripper assembly that can be raised and lowered, and is used to grab the lead frame on the oven mechanism and place it on the receiving track 7 .

As shown in FIG. 8 , the oven mechanism 5 includes a thermal insulation cover 501 , a plurality of heating platforms 502 and a plurality of moving mechanisms 503 . Each heating platform 502 corresponds to a moving mechanism 503 , which is driven by the moving mechanism 503 and pushed into the thermal insulation cover 501 . Multiple heating platforms 502 can individually heat each lead frame, cooperate with the thermal insulation cover 501 to form multiple independent oven units, the mutual heating is not affected, and the heating temperature can also be independently controlled. Pushing by the moving mechanism 503 can realize automatic loading and unloading of the lead frame.

When the present invention works, the lead frames to be filmed are stacked in the magazines on the magazine rack 102 of the feeding mechanism 1, and the magazine rack 102 can place multiple magazines laterally at one time. The conveying device 105 transports the material boxes one by one to the material box handle 103 , the material box handle 103 grabs the material boxes, and the pushing mechanism 104 pushes the stacked lead frames from the opening to the feeding track 2 in turn. The material box frame 102 of the upper floor can place a plurality of material boxes, after the workpiece in the material box grabbed by the material box gripper 103 is pushed, the material box gripper 103 descends to the material box frame 102 place of the lower floor, and the empty material box The box is sent away to realize the automatic collection of the empty material box.

The lead frame entering the feed track 2 moves back and forth along the guide rail 201 on the feed bracket 202 for positioning. The gripper assembly 403 of the feed gripper 4 is directly connected to the level and angle adjustment assembly 402 and the transmission assembly 401 , and the level and angle of the lead frame can be pre-adjusted through the level and angle adjustment assembly 402 . The feed gripper 4 moves along the bracket 10 to the top of the feed rail 2, and the transmission component 401 drives the gripper component 403 to descend. After the gripper component 403 grabs the lead frame, the transmission component 401 moves to directly press it on the film laying device 3 on the adhesive film on the vacuum suction film plate 304. The lead frame pasted with the adhesive film is placed on the heating platform 502 of the oven mechanism 5 through the feeding gripper 4 . The moving mechanism 503 pushes the heating platform 502 into the thermal insulation cover 501 to heat the lead frame at high temperature. The heated lead frame is placed on the material receiving track 7 after being grasped by the discharge gripper 6, and the pushing mechanism pushes the lead frame into the material box on the material receiving mechanism 7 material box rack, and the material receiving mechanism 7 also has two Layer box frame, used for receiving materials, to complete the whole film sticking process.

Claims (7)

1. A post laminating machine, characterized in that: comprising a base, a feeding mechanism, a feeding track, a film laying device, an oven mechanism, a feeding handle, a discharging handle, a receiving track and a receiving mechanism; The feeding mechanism and the receiving mechanism are respectively arranged on one side and both sides of the base; the feeding track, the film laying device, the oven mechanism, and the receiving track are arranged side by side on the other side of the base; the feeding grab The hand and the discharge gripper are arranged on the support above the feeding track, the film laying mechanism, the oven mechanism and the receiving track; The feeding mechanism is used to push the lead frame longitudinally onto the feeding track; The feed track moves and positions the lead frame longitudinally for the feed gripper to grab; The film laying device is used for cutting and spreading the film paper, and laminating it with the lead frame; The feed gripper is used to grab the lead frame and move up, down, left, and right above the feed rail, film laying mechanism, and oven mechanism; The oven mechanism is used to heat the lead frame after film pasting at high temperature; The discharge gripper is used to grab the lead frame and move up and down, left and right above the receiving track in the oven mechanism; The receiving track is used to longitudinally push the lead frame onto the receiving mechanism; The receiving mechanism is used for receiving the lead frame. 2. The film laminating machine according to claim 1, wherein the feeding mechanism comprises a bottom plate, a double-layer material box frame arranged on one side of the bottom plate, and a material box arranged on the other side of the bottom plate Gripper and material pushing mechanism; there is a transmission device on the material box rack, which transmits the material box to the material box handle; the material box handle is set on the lifting mechanism to clamp the material box; The pushing mechanism moves forward, and pushes the lead frame in the material box longitudinally onto the feeding track from the front opening of the material box. 3. The film laminating machine according to claim 2, characterized in that: the receiving mechanism comprises a bottom plate, a double-layer material box frame arranged on one side of the bottom plate, and a material box arranged on the other side of the bottom plate Gripper; there is a transmission device on the magazine frame, which transmits the magazine to the gripper of the magazine; the gripper of the magazine is arranged on the lifting mechanism to clamp the magazine. 4. The film laminating machine according to claim 2, wherein the feeding track includes a feeding bracket moving forward and backward along the guide rail, and the feeding bracket is driven to move by a pulley transmission mechanism. 5. The film laminating machine according to claim 1, characterized in that: the feed gripper includes a transmission assembly, a level and angle adjustment assembly, and a gripper assembly; the gripper assembly is connected at the level, angle Below the adjustment assembly, there are opening and closing jaws for clamping the lead frame; the level and angle adjustment assembly and the gripper assembly are connected below the transmission assembly; the level and angle adjustment assembly includes a level adjustment component, an angle The adjustment component and the floating plate are used to adjust the levelness and angle of the handle assembly; the transmission assembly has a lifting device, and the lifting device drives the level and angle adjustment assembly and the handle assembly to press down. 6. The film laminating machine as claimed in claim 1, characterized in that: said oven mechanism comprises a thermal insulation cover, a plurality of heating platforms and a plurality of moving mechanisms; each said heating platform corresponds to a moving mechanism, and said The moving mechanism is driven and pushed into the heat preservation cover. 7. The post-laminating machine according to any one of claims 1-5, characterized in that: the film spreading device includes a film supply mechanism, a film pulling mechanism, a film spreading mechanism, a film cutting mechanism and a bottom film winding mechanism; The film supply mechanism includes a film bin and a guide wheel group to supply the film for the film pulling mechanism; the film pulling mechanism includes a liftable film pulling head, and the film pulling head is arranged on the moving mechanism for The adhesive film is moved and stretched onto the film spreading mechanism; the film spreading mechanism includes a vacuum suction film plate, and the adhesive film is fixed on the vacuum suction film plate; the film cutting mechanism includes a retractable film cutting knife, The film paper is cut off at the set position; the bottom film winding mechanism includes a bottom film winding wheel driven by a motor to wind the bottom film separated from the film paper.

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