Lead frame transmission device

Abstract

The utility model relates to the technical field of lead frame transmission, and discloses a lead frame transmission device which comprises a transmission rack, a transmission roller is rotatably mounted at the top end of the transmission rack through a mounting frame and a roller, and electric telescopic rods are mounted in the middles of the two sides of the transmission rack through supporting plates. Movable frames are fixedly installed at the tail ends of push rods of the two electric telescopic rods, a plurality of rubber rotating rollers are rotationally installed on the opposite faces of the two movable frames through rotating shafts, a lead frame body is arranged at the top ends of the transmission rotating rollers, and the outer side of the lead frame body is attached to the outer rings of the rubber rotating rollers; by means of a conveying roller, an electric telescopic rod, a movable frame, a rubber roller, a mounting frame and an air blowing fan, the position of the rubber roller can be adjusted, lead frame bodies of different batches can be conveyed and limited conveniently, the cleanliness of the lead frame bodies in the conveying process is improved, and the situation that many impurities adhere to the machined faces of the lead frame bodies is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lead frame transmission technology, specifically a lead frame transmission device. Background Technology

[0002] The lead frame is the chip carrier of integrated circuits. It is a key structural component that uses bonding materials to realize the electrical connection between the internal circuit leads of the chip and the external leads, forming an electrical circuit. It plays the role of a bridge connecting with external wires and is an important basic material in the electronic information industry. The production of lead frames requires processes such as stamping, electroplating, and debossing. Each processing step requires a transmission device to transport the strip-shaped lead frame to the processing machine.

[0003] Chinese patent provides a lead frame transmission device, publication number CN217134339U, which includes a transmission frame. The bottom of the transmission frame is fixed with a frame. Multiple equidistant side guide components are provided on the front and rear side walls of the transmission frame. A transmission guide roller is horizontally installed inside the transmission frame, and a lead frame is overlapped and guided on the transmission guide roller.

[0004] When the wire frame is being transported on the transmission guide rollers of the transmission frame, if the wire frame shifts laterally, the wire frame will be guided by side guide components on both sides of the transmission frame to prevent the side wall of the wire frame from directly contacting the inner wall of the transmission frame and causing wear.

[0005] However, during use, the width of the lead frames produced in different batches varies. The transmission frame can only limit the transmission of lead frames of a certain width. The structure is relatively simple and has poor applicability. In addition, during the transmission process, the surface of the lead frame to be processed will be exposed to the external environment, and a small number of impurities may fall on it, which may affect the subsequent processing effect. Utility Model Content

[0006] The purpose of this invention is to provide a lead frame transmission device that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lead frame transmission device includes a transmission frame, wherein a transmission roller is rotatably mounted on the top of the transmission frame via a mounting frame and a roller, and an electric telescopic rod is mounted on the middle positions of both sides of the transmission frame via a support plate.

[0009] The push rod ends of the two electric telescopic rods are fixedly equipped with movable frames. Several rubber rollers are rotatably mounted on the opposite sides of the two movable frames via a rotating shaft. A lead wire frame body is provided at the top of the transmission roller. The outer side of the lead wire frame body is in contact with the outer ring of the several rubber rollers. A transmission motor is installed at the rear of one side of the mounting frame. The transmission motor is connected to the several transmission rollers through a transmission wheel set box.

[0010] Preferably, the top surface of the transmission roller does not contact the bottom surface of the rubber roller, the movable frame is in contact with the top surface of the transmission roller, and the movable frame and the transmission roller are slidably connected.

[0011] Preferably, a mounting bracket is movably installed at the rear top position of one of the two movable frames, and several blower fans are installed inside the mounting bracket.

[0012] Preferably, the top of the other movable frame of the two movable frames is movably mounted with a suction port via a metal shaping tube, and the end of the suction port away from the conveying roller is connected to a dust extraction pipe.

[0013] Preferably, the end of the suction port away from the suction pipe has a suction port that is compatible with the blower fan, and the blower fan and the suction port do not come into contact with each other.

[0014] Preferably, several of the transmission rollers are on the same horizontal plane, and the bottom length of the rubber rollers exceeds the center point of the lead frame body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses a transfer roller, an electric telescopic rod, a movable frame, and a rubber roller in conjunction with the lead frame body. The movable frame can limit the two sides of the lead frame body, and it will rotate when it comes into contact with the lead frame body, which can assist the lead frame body in transmission. At the same time, the position of the rubber roller can be adjusted to limit the transmission of different batches of lead frame bodies.

[0017] By setting up a mounting bracket and a blower fan in conjunction with the lead frame body, dust on the machined surface of the lead frame body can be blown away during the transport of the lead frame body. Furthermore, the dust extraction pipe is connected to an external dust extraction pump to generate a continuous negative pressure suction at the suction port, which facilitates the absorption of the blown-away dust, improves the cleanliness of the lead frame body during transport, avoids excessive impurities adhering to the machined surface of the lead frame body, and prevents significant impact on subsequent processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a lead frame transmission device according to an embodiment of the present utility model;

[0019] Figure 2 This is a front view of the structure of the lead frame body and the rubber roller in this embodiment of the present invention;

[0020] Figure 3 This is a top view of the suction port and the blower fan in an embodiment of this utility model.

[0021] In the diagram: 1. Conveyor frame; 2. Conveyor roller; 3. Electric telescopic rod; 4. Movable frame; 5. Rubber roller; 6. Lead wire frame body; 7. Conveyor motor; 8. Transmission wheel set box; 9. Mounting frame; 10. Blowing fan; 11. Suction port; 12. Ash extraction pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-3 A lead frame transmission device includes a transmission frame 1, a transmission roller 2 rotatably mounted on the top of the transmission frame 1 via a mounting frame and a roller, and an electric telescopic rod 3 mounted on the middle positions of both sides of the transmission frame 1 via a support plate.

[0025] See Figure 2 and Figure 3 Furthermore, it is found that the push rod ends of the two electric telescopic rods 3 are fixedly installed with movable frames 4. Several rubber rollers 5 are rotatably installed on the opposite surfaces of the two movable frames 4 through a rotating shaft. The top of the transmission roller 2 is provided with a lead frame body 6. The outer side of the lead frame body 6 is in contact with the outer ring of several rubber rollers 5. A transmission motor 7 is installed at the rear of one side of the mounting frame. The transmission motor 7 is connected to several transmission rollers 2 through a transmission wheel set box 8. The top surface of the transmission roller 2 does not contact the bottom surface of the rubber roller 5. The movable frame 4 is in contact with the top surface of the transmission roller 2, and the movable frame 4 and the transmission roller 2 are slidably connected. Several transmission rollers 2 are on the same horizontal plane. The bottom length of the rubber roller 5 exceeds the center point of the lead frame body 6.

[0026] Specifically, by starting the transmission motor 7, the transmission roller 2 can be rotated to transmit the lead frame body 6. During transmission, the outer ring of the rubber roller 5 is in contact with the outer side of the lead frame body 6, which limits the two sides of the lead frame body 6 and prevents it from shifting during transmission. By controlling the extension and retraction of the push rod of the electric telescopic rod 3, the distance between the movable frame 4 and the lead frame body 6 can be controlled, thereby adjusting the limiting size of the two rubber rollers 5. This allows for adjustment according to the actual width of the lead frame body 6, and different specifications of lead frame bodies 6 can be limited during transmission. When the lead frame body 6 contacts the rubber roller 5, the rubber roller 5 will rotate, thereby reducing friction when in contact with the lead frame body 6, preventing the lead frame body 6 from getting stuck during transmission, and reducing the probability of wear on the lead frame body 6.

[0027] Example 2

[0028] See Figure 3 Furthermore, based on Embodiment 1, a mounting frame 9 is movably installed at the rear of the top of one of the two movable frames 4. Several blower fans 10 are installed inside the mounting frame 9. A suction port 11 is movably installed at the top of the other movable frame 4 through a metal shaping tube. The end of the suction port 11 away from the conveying roller 2 is connected to a dust extraction pipe 12. The end of the suction port 11 away from the dust extraction pipe 12 has a dust extraction port that is compatible with the blower fans 10. The blower fans 10 and the suction port 11 do not contact each other.

[0029] Specifically, by controlling the rotation of multiple mounting brackets 9, the surface of the lead frame body 6 can be cleaned by blowing air to blow off any dust that may be adhering to it. By connecting the dust extraction pipe 12 to an external dust extraction pump and starting the external dust extraction pump, the suction port 11 can continuously generate suction to suck up the blown-off dust and prevent it from floating in the air for a long time, so as to avoid it from adhering to the lead frame body 6 again.

[0030] In actual operation, by starting the transmission motor 7, the transmission roller 2 can be driven to rotate, thereby transmitting the lead frame body 6 on it. During transmission, the outer ring of the rubber roller 5 is in contact with the outer side of the lead frame body 6, which can limit the two sides of the lead frame body 6 and prevent the lead frame body 6 from shifting during transmission.

[0031] Furthermore, by controlling the extension and retraction of the push rod of the electric telescopic rod 3, the distance between the movable frame 4 and the lead frame body 6 can be controlled, thereby adjusting the limiting size of the two rubber rollers 5 so as to adjust according to the actual width of the lead frame body 6. Through adjustment, the lead frame body 6 of different specifications can be transmitted and limited.

[0032] Furthermore, when the lead frame body 6 comes into contact with the rubber roller 5, the rubber roller 5 will rotate, thereby reducing the friction when in contact with the lead frame body 6, preventing the lead frame body 6 from getting stuck during transmission, and reducing the probability of wear on the lead frame body 6.

[0033] By controlling the rotation of multiple mounting brackets 9, the surface of the lead frame body 6 can be cleaned by blowing air to remove any dust that may be adhering to it. By connecting the dust extraction pipe 12 to an external dust extraction pump and starting the external dust extraction pump, the suction port 11 can continuously generate suction to suck up the blown-off dust and prevent it from floating in the air for a long time, so as to avoid it from adhering to the lead frame body 6 again.

[0034] Although embodiments of the present 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 the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lead frame transmission device, comprising a transmission frame (1), wherein a transmission roller (2) is rotatably mounted on the top of the transmission frame (1) via a mounting frame and a roller, characterized in that: Electric telescopic rods (3) are installed on the center of both sides of the transmission frame (1) via support plates. Two electric telescopic rods (3) have movable frames (4) fixedly installed at the ends of their push rods. Several rubber rollers (5) are rotatably mounted on the opposite sides of the two movable frames (4) via a rotating shaft. A lead frame body (6) is provided at the top of the transmission roller (2). The outer side of the lead frame body (6) is in contact with the outer ring of the several rubber rollers (5). A transmission motor (7) is installed at the rear of one side of the mounting frame. The transmission motor (7) is connected to the several transmission rollers (5) via a transmission wheel set box (8). 2) Transmission connection; the top surface of the transmission roller (2) does not contact the bottom surface of the rubber roller (5), the movable frame (4) is in contact with the top surface of the transmission roller (2), and the movable frame (4) and the transmission roller (2) are slidably connected; the movable frame (4) limits the two sides of the lead frame body, and the movable frame (4) will rotate when it contacts the lead frame body to assist the lead frame body in transmission. The position of the rubber roller (5) can be adjusted so as to limit the transmission of different batches of lead frame bodies.

2. The lead frame transmission device according to claim 1, characterized in that: A mounting frame (9) is movably installed at the rear top of one of the two movable frames (4), and several blower fans (10) are installed inside the mounting frame (9).

3. The lead frame transmission device according to claim 2, characterized in that: The top of the other movable frame (4) of the two movable frames (4) is movably installed with a suction port (11) through a metal shaping tube, and the end of the suction port (11) away from the transmission roller (2) is connected to a dust extraction pipe (12).

4. The lead frame transmission device according to claim 3, characterized in that: The suction port (11) is provided with a suction port that is compatible with the blower fan (10) at the end away from the suction pipe (12). The blower fan (10) and the suction port (11) do not come into contact with each other.

5. The lead frame transmission device according to claim 1, characterized in that: Several of the aforementioned transmission rollers (2) are on the same horizontal plane, and the bottom length of the rubber roller (5) exceeds the center point of the lead frame body (6).

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