CN204407310U - Lead frame conveying device - Google Patents

Abstract

The utility model discloses a kind of lead frame conveying device, it is characterized in that, comprise the 3rd brace table, the first pusher and the transmitting device that can catch lead frame; Lead frame on described 3rd brace table can be pushed to described transmitting device by described first pusher.The lead frame conveying device that the utility model provides, can utilize the first pusher to be pushed to transmitting device from the 3rd brace table by lead frame, then by transmitting device, lead frame be transferred to assigned address, reduce labor strength.Utilize automation mechanized operation, can further improve lead frame processing speed.

Description

Lead frame conveyor

technical field

The utility model relates to a lead frame conveying device.

Background technique

As shown in FIG. 1 , in the semiconductor industry, when electroplating a lead frame, a steel strip 01 is used to suspend the lead frame 02 for electroplating. After the electroplating is completed, the lead frame 02 is separated from the steel strip 01. In the prior art, manual operation is often used to place the lead frame 02 separated from the steel strip 01 on a plurality of conveying wheels arranged in a straight line, and the conveying wheels rotate continuously to transport the lead frame forward by friction. After arriving at the designated place, the lead frame is manually removed for further processing. However, manual operation is labor-intensive, slow, time-consuming, and inefficient, and cannot be operated quickly and on a large scale.

Utility model content

The purpose of this utility model is to provide a lead frame conveying device which can reduce labor intensity in order to overcome the deficiencies in the prior art.

In order to achieve the above purpose, the utility model is realized through the following technical solutions:

The lead frame conveying device is characterized in that it includes a third supporting table for supporting the lead frame, a first pushing device and a transport device; the first pushing device is used to push the lead frame on the third supporting table to The transport device is used to transport the lead frame forward along the horizontal direction.

Preferably, the first pushing device includes a first push rod; the first push rod can reciprocate relative to the third support platform; when the first push rod moves, it will be placed on the third support The lead frame on the stage is pushed onto the conveying device.

Preferably, it also includes a first driving device; the first driving device drives the first push rod or drives the first push rod to reciprocate through the first transmission device; the first driving device is a first cylinder or first motor.

Preferably, a chute is provided on the third supporting platform; the first push rod moves along the chute when moving, and the first push rod is partially located in the chute and partially protrudes from the chute. described chute.

Preferably, it also includes a first position detection device and a control host; the first position detection device sends different signals to the control host according to whether the lead frame is located on the third supporting platform; the control host controls The operation of the first driving device determines whether the first driving device starts or stops according to different signals sent by the first position detection device.

Preferably, the first position detection device is a first proximity switch.

Preferably, the transmission device includes two transmission belts; the two transmission belts are respectively rotatably installed; the two transmission belts are spaced from each other and arranged in parallel; the distance between the two transmission belts is adjustable.

Preferably, the two transmission belts are respectively rotatably arranged on the first support platform and the second support platform; the first support platform and the second support platform can be relatively movable, and the first support platform and the second support platform The second support platforms can be moved closer to or farther away from each other, and the second driving device drives the first support platform or the second support platform to move or drives the first support platform or the second support platform to move through the second transmission device; The second driving device is a second motor or a second cylinder.

Preferably, a first guide device is further included; the first guide device is used to limit the movement trajectory of one or both of the first support platform and the second support platform.

Preferably, the first guiding device includes a guide rail and a slider that cooperate with each other; the slider is arranged on the guide rail and can slide along the guide rail; the first support table and the second support One or both of the stages are connected to the slider.

Preferably, the second transmission device is a first lead screw nut; the first lead screw nut includes a first lead screw and a first nut threadedly fitted; the first lead screw and the first nut One of them is driven to rotate by the second driving device, and the other is connected to the first support platform or the second support platform.

Preferably, it also includes a second pushing device, the second pushing device can be set up and down; the second pushing device includes a second push rod, and the second push rod can be horizontally moved; The pushing device can be lifted to a position where the second push rod is horizontally aligned with the lead frame, and when the second push rod moves horizontally, the lead frame is pushed down from the transfer device; it also includes a third driving device and a first Four drive devices; the third drive device drives the second push rod to reciprocate or drives the second push rod to reciprocate through the third transmission device; the fourth drive device drives the second push device to go up and down or The second pushing device is driven up and down by the fourth transmission device; the third driving device is the third cylinder or the third motor; the fourth driving device is the fourth motor or the fourth cylinder.

Preferably, the second pushing device is arranged above the conveying device, and can be raised and lowered relative to the conveying device; the second pushing device can be lowered onto the transmission path of the conveying device; the second pushing After the device is lowered, the movement of the second push rod can push the lead frame away from the delivery device.

Preferably, it also includes a second position detection device and a control host; the second position detection device sends different signals to the control host according to whether the lead frame is within the detection range of the second position detection device; The control host controls the operation of the third driving device and the fourth driving device, and determines whether the third driving device and the fourth driving device start or stop according to different signals sent by the second position detection device.

Preferably, the second position detection device is a second proximity switch.

Preferably, the transmission device is a conveyor belt, and a plurality of pressure wheels are arranged above the conveyor belt; the plurality of pressure wheels are rotatably arranged and arranged at intervals; between the wheels.

In the lead frame conveying device provided by the utility model, after the lead frame is placed on the third support platform, the first push device can be used to push the lead frame from the third support platform to the transmission device, and then the lead frame can be transported to the The designated location reduces the labor intensity of workers. The lead frame can be pushed down from the conveying device by using the second pushing device, and falls into a designated position or storage box, and the whole process can be fully automated without the participation of workers. The use of automated operations can further increase the processing speed of the lead frame and reduce labor intensity.

Description of drawings

Fig. 1 is the structural representation of lead frame;

Fig. 2 is the structural representation of the lead frame delivery device in the utility model;

Fig. 3 is the structural representation of the first pushing device in the utility model;

Fig. 4 is the structural representation of the transmission device in the utility model;

FIG. 5 is a partially enlarged view of the structure shown in FIG. 4 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

As shown in FIG. 2 , the lead frame conveying device includes a third supporting platform 1 , a first pushing device 2 and a conveying device 3 . The third supporting platform 1 is fixedly arranged for supporting the lead frame. The first pushing device 2 is used to push the lead frame on the third supporting platform 1 to the transmission device 3 , and the lead frame is transported horizontally by the transmission device 3 .

As shown in FIG. 3 , the first pushing device 2 includes a first push rod 21 , and the first push rod 21 can reciprocate in a horizontal direction. After the lead frame is placed on the third support platform 1 , it is located on the moving path of the first push rod 21 , and when the first push rod 21 moves horizontally, it pushes the lead frame onto the conveying device 2 . The horizontal reciprocating movement of the first push rod 21 is driven by the first driving device, or driven by the first driving device through the first transmission device. The first driving device is a first motor or a first air cylinder. In the preferred example shown, the first drive means is the first cylinder 41 . The first push rod 21 is connected or integrated with the first piston rod of the first cylinder 41 . The first piston rod expands and contracts, driving the first push rod 21 to move back and forth.

A chute 11 is provided on the third supporting platform 1 , and the chute 11 extends along the movement of the first push rod 21 . The first push rod 21 moves along the chute 11 when moving, and the first push rod 21 is partially located in the chute 11 and partially protrudes from the chute 11 . When the first push rod 21 pushes the lead frame on the third support platform 1 to move, the first push rod 21 partly extends into the chute 11, thereby avoiding the contact between the first push rod 21 and the surface of the third support platform 1, Avoid friction between the first push rod 21 and the third support platform 1 , reduce push resistance, and prevent wear of the first push rod 21 and the third support platform 1 . Simultaneously on the 3rd supporting platform 1, offer chute 11, can increase the contact area of the side of the first push rod 21 and the lead frame on the 3rd supporting platform 1, improve pushing stability, avoid the first pushing rod in pushing process. 21 and the lead frame are disengaged.

The utility model can also be provided with a first position detection device and a control host (not shown in the figure). The first position detection device is a first proximity switch (not shown in the figure). The first proximity switch sends different signals to the control host according to whether the lead frame is located on the third support platform 1 or not. The control host controls the operation of the first cylinder 41, and determines whether to start or stop the first cylinder 41 according to different signals sent by the first proximity switch. The first proximity switch is arranged on one side of the third support platform 1 . When a lead frame falls on the third support platform 1, the lead frame falls into the detection range of the first proximity switch, the first proximity switch sends the first signal to the control host, and the control host controls the first cylinder 41 The piston rod is stretched out, driving the first push rod 21 to move towards the lead frame on the third supporting platform 1 , and pushing the lead frame from the third supporting platform 1 to the transmission device 3 . When the lead frame is pushed onto the transmission device 3, the lead frame exceeds the inspection range of the first proximity switch, the first proximity switch sends the second model to the control host, and the control host controls the first piston rod of the first cylinder 41 to shrink, Drive the first push rod 21 to return to the state shown in FIG. 3 .

As shown in FIG. 4 , the conveying device 3 includes two conveying belts, namely a first conveying belt 31 and a second conveying belt 32 . The first transmission belt 31 is rotatably installed on the first support platform 33, and the second transmission belt 32 is rotatably installed on the second support platform 34. The fifth motor 35 drives the transmission shaft 37 to rotate through the transmission belt 36 . The transmission shaft 37 is provided with two pulleys, and the two pulleys respectively drive the first transmission belt 31 and the second transmission belt 32 to rotate, so that the first transmission belt 31 and the second transmission belt 32 rotate synchronously. The first conveyor belt 31 and the second conveyor belt 32 are arranged in parallel and spaced apart from each other.

The distance between the first transmission belt 31 and the second transmission belt 32 is adjustable, so as to adapt to the transmission of lead frames of different sizes. In the example shown in the figure, the first supporting platform 33 can be set close to or away from the second supporting platform 34, so as to drive the first conveyor belt 31 close to or away from the second conveyor belt 32, for the first conveyor belt 31 and the second conveyor belt 31 The distance between the two conveyor belts 32 is adjusted. The movement of the first supporting platform 33 is driven by the second driving device or driven by the second driving device through the second transmission device. The second driving device is a second motor or a second cylinder. In the preferred example shown, the second drive means is a second electric motor 42 . The second motor 42 drives the first supporting platform 33 to move through the second transmission device, thereby driving the first transmission belt 31 to approach or move away from the second transmission belt 32 . The second transmission device is a first lead screw nut, and the first lead screw nut includes a first lead rod 71 and a first nut 72 that are screwed together. The first screw rod 71 is rotatably arranged, and the first nut 72 is connected with the first supporting platform 33 . The second motor 42 drives the first screw rod 71 to rotate, and drives the first supporting platform 33 to move through the first nut 72 . The lead frame conveying device also includes a first guiding device for guiding the first support table 33 . The first guiding device includes a matching guide rail 61 and a sliding block 62 . The slider 62 is disposed on the guide rail 61 and can move along the guide rail 61 . The slider 62 is connected to the first supporting platform 33 , and drives the first supporting platform 33 to approach or move away from the second supporting platform 34 along the guide rail 61 . The distance between the two conveyor belts is adjustable, so that the utility model can be applied to lead frames of various sizes, and has wider applicability. A plurality of pressure rollers 38 are respectively disposed on the first support platform 33 and the second support platform 34 . The pressure roller 38 is rotatably arranged. A plurality of pressure rollers 38 are located above the first conveyor belt 31 and the second conveyor belt 32 respectively. There is a gap between the pressure roller 38 and the first transmission belt 31 and the second transmission belt 32 . When conveying the lead frame, the lead frame passes between the pressing wheel 38 and the first conveying belt 31 and between the pressing wheel 38 and the second conveying belt 32 . The pressure roller 38 is provided to enhance the stability of the lead frame during delivery.

As shown in FIG. 5 , the lead frame conveying device further includes a second pushing device 8 , and the second pushing device 8 can push the lead frame off the conveying device 3 . The second pushing device 8 is set up and down. The second pushing device 8 includes a second push rod 81, and the second push rod 81 is horizontally movable. The second pushing device 8 can be lifted to a position where the second push rod 81 is horizontally aligned with the lead frame, and the second push rod 81 pushes the lead frame off the transfer device 3 when moving horizontally. The third driving device drives the second push rod 81 to reciprocate or drives the second push rod 81 to reciprocate through the third transmission device. The third driving device is a third motor or a third cylinder. In the preferred example shown in the figure, the third driving device is the third cylinder 43 . The second push rod 81 is connected or integrated with the second piston rod of the second cylinder 43 . The second piston rod expands and contracts, driving the second push rod 81 to reciprocate horizontally.

The fourth driving device drives the second pushing device up and down or drives the second pushing device up and down through the fourth transmission device; the third driving device is the third cylinder or the third motor; the fourth driving device is Fourth motor or fourth cylinder.

The second pushing device 8 includes a second push rod 81 . The second push rod 81 can reciprocate along the horizontal direction. The lead frame conveying device further includes a third driving device, and the third driving device is a second air cylinder 43 .

When the second pushing device 8 is not needed, the second pushing device is arranged above the path of the lead frame transported by the transport device 3 to avoid blocking the lead frame when the transport device 3 transports the lead frame. When the second push device 8 needs to be used, the second push device 8 is driven down by the fourth driving device, and the second push device 8 is moved to the path where the transfer device 3 transports the lead frame, that is, the first transfer belt 31 and the second transfer device 8. Band 32 between. The second push rod 81 is driven by the second cylinder 43 to protrude along the path direction of the lead frame transported by the transport device 3, and the lead frame moved to the tail of the transport device 3 is pushed away from the transport device 3 for the next step of processing. The fourth driving device is the third cylinder 44, the third cylinder 44 is installed on the second support platform 34, the third piston rod of the third cylinder 44 is connected with the second cylinder 43, and the expansion and contraction of the third piston rod drives the second cylinder 43. Do lifting exercises.

A second position detection device is also included, and the second position detection device is a second proximity switch 52 . The second proximity switch 52 is installed at the transmission terminal of the transmission device 3 . The second proximity switch 52 sends different signals to the control host according to whether the lead frame is located within the detection range of the second proximity switch 52 . The control host controls the operation of the second cylinder 43 and the third cylinder 44, and determines whether to start or stop the second cylinder 43 and the third cylinder 44 according to different signals sent by the second proximity switch 52 . When the end of the lead frame first reaches the transmission terminal of the transmission device 3 , the lead frame enters the inspection range of the second proximity switch 52 . The lead frame continues to move forward under the transmission of the transmission device 3 , and when the tail of the lead frame moves out of the transmission terminal of the transmission device 3 , the lead frame moves out of the detection range of the second proximity switch 52 . At this time, the second proximity switch sends a signal to the control host, and the control host controls the third cylinder 44 to drive the second cylinder 43 to drop between the first conveyor belt 31 and the second conveyor belt 32, and then controls the second cylinder 43 to drive the second conveyor belt 32. The push rod 81 protrudes along the path direction of the lead frame transported by the transport device 3 to push the lead frame away from the transport device 3 for the next step of processing.

The embodiments in the utility model are only used to illustrate the utility model, and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions conceivable by those skilled in the art are all within the protection scope of the utility model.

Claims (16)

1. lead frame conveying device, is characterized in that, comprises for the 3rd brace table of supporting wire framework, the first pusher and transmitting device; Described first pusher is for pushing to described transmitting device by the lead frame on described 3rd brace table, and described transmitting device is used for lead frame to be fed forward in the horizontal direction.

2. lead frame conveying device according to claim 1, is characterized in that, described first pusher comprises the first push rod; Described first push rod can move back and forth by relatively described 3rd brace table; When described first push rod moves, the lead frame be positioned on described 3rd brace table is pushed in described conveying device.

3. lead frame conveying device according to claim 2, is characterized in that, also comprises the first drive unit; Described first drive unit is driven described first push rod or is moved back and forth by the first push rod described in the first actuator drives; Described first drive unit is the first cylinder or the first motor.

4. lead frame conveying device according to claim 2, is characterized in that, described 3rd brace table is provided with chute; Described first push rod moves along described chute when moving, and described first pusher section is positioned at described chute, and part protrudes from described chute.

5. lead frame conveying device according to claim 3, is characterized in that, also comprises primary importance checkout gear and main control system; Whether described primary importance checkout gear is positioned on described 3rd brace table according to lead frame, sends different signals to described main control system; Described main control system controls the work of described first drive unit, and according to the different signal that described primary importance checkout gear sends, determines that described first drive unit starts or stops.

6. lead frame conveying device according to claim 5, is characterized in that, described primary importance checkout gear is the first proximity switch.

7. lead frame conveying device according to claim 1, is characterized in that, described transmitting device comprises two transport tapes; Two described transport tapes are rotatably mounted respectively; Two described transport tapes are spaced and arrange abreast; The spacing of two described transport tapes is adjustable.

8. lead frame conveying device according to claim 7, is characterized in that, two transport tapes are arranged on the first brace table and the second brace table respectively rotationally; Described first brace table and the second brace table can be arranged relatively movably, described first brace table and described second brace table can close to each other or away from, second drive unit drives described first brace table or described second brace table to move, or the second drive unit is moved by the first brace table described in the second actuator drives or the second brace table; Described second drive unit is the second motor or the second cylinder.

9. lead frame conveying device according to claim 8, is characterized in that, also comprises the first guider; Described first guider is for limiting one or two the motion track in described first brace table and the second brace table.

10. lead frame conveying device according to claim 9, is characterized in that, described first guider comprises the guide rail and slide block that cooperatively interact; Described slide block is arranged on described guide rail, and can along described slide; Described first brace table is connected with described slide block with one or two in described second brace table.

11. lead frame conveying devices according to claim 8, is characterized in that, described second transmission device is the first feed screw nut; Described first feed screw nut comprises the first screw mandrel and first nut of threaded engagement; One in described first screw mandrel and described first nut to drive by described second drive unit and rotates, and another is connected with described first brace table or described second brace table.

12. lead frame conveying devices according to claim 1, is characterized in that, also comprise the second pusher, described second pusher is liftably arranged; Described second pusher comprises the second push rod, and described second push rod can be arranged with moving horizontally; Lead frame, to the position making described second push rod and lead frame horizontal aligument, pushes from described transmitting device when described second push rod moves horizontally by described second pusher liftable; Also comprise the 3rd drive unit and four-drive device; Described 3rd drive unit drives described second push rod to move back and forth or moved back and forth by the second push rod described in the 3rd actuator drives; Described four-drive device is driven described second pusher lifting or is elevated by the second pusher described in the 4th actuator drives; Described 3rd drive unit is the 3rd cylinder or the 3rd motor; Described four-drive device is the 4th motor or four-cylinder.

13. lead frame conveying devices according to claim 12, is characterized in that, described second pusher is arranged on above described transmitting device, and can be elevated by relatively described transmitting device; Described second pusher can drop on the transmission path of described transmitting device; After described second pusher declines, described second push rod moves and can promote lead frame away from described conveying device.

14. lead frame conveying devices according to claim 12, is characterized in that, also comprise second place checkout gear and main control system; Whether described second place checkout gear is positioned at the detection range of described second place checkout gear according to lead frame, sends different signals to described main control system; Described main control system controls the work of described 3rd drive unit and four-drive device, and according to the different signal that described second place checkout gear sends, determines that described 3rd drive unit and four-drive device start or stop.

15. lead frame conveying devices according to claim 14, is characterized in that, described second place checkout gear is the second proximity switch.

16. lead frame conveying devices according to claim 1, is characterized in that, described transmitting device is conveyer belt, is provided with multiple pinch roller above described conveyer belt; Multiple described pinch roller is arranged rotationally, and interval is arranged; Lead frame passes between described conveyer belt and described pinch roller.