CN215797112U

CN215797112U - Lead frame receives material bunching device

Info

Publication number: CN215797112U
Application number: CN202121733195.2U
Authority: CN
Inventors: 殷杰; 殷继平; 熊志; 钱淑辉; 熊俊
Original assignee: Taixing City Yongzhi Electronic Device Co ltd
Current assignee: Taixing City Yongzhi Electronic Device Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-11
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to the technical field of integrated circuit lead frames, in particular to a lead frame material receiving and stacking device, which aims to overcome the defects of inconvenience in material receiving and stacking and unstable transportation in the prior art and is mainly realized by the following technical scheme: a lead frame receives material bunching device includes: discharging device, levelling device and stack structure, discharging device includes discharge frame and ejection of compact area, levelling device establishes between discharging device and stack structure, levelling device is including levelling frame, a plurality of levelling rollers and accepting the roller, still be equipped with the counter on the levelling device, stack structure includes the conveyer belt, connect and draw frame and stack frame, the conveyer belt is connected levelling device and is drawn the frame, it is equipped with the stack frame to connect and draw the frame below, the lead frame passes through the ejection of compact area and gets into the conveyer belt via levelling device, connect and draw the frame and accept the lead frame and guarantee transportation stability, the lead frame has guaranteed the levelness of lead frame body through the levelling, be favorable to quick planarization of stacking.

Description

Lead frame receives material bunching device

Technical Field

The utility model relates to the technical field of integrated circuit lead frames, in particular to a lead frame material receiving and stacking device.

Background

The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between the leading-out end of an internal circuit of a chip and an external lead by means of bonding materials to form an electrical circuit, and plays a role of a bridge connected with an external lead. Lead frames are required in most of semiconductor integrated packages, and therefore, lead frames are important basic components in the electronic information industry.

In the prior art, a production plant of a lead frame adopts a punch for one-step molding, then the punch discharges materials and receives the sheets by manual work, the manual operation efficiency is low, and the situations of sheet receiving errors, even complex counting and the like are easy to occur; even there is automatic material collecting device, but current automatic material collecting device has the poor problem of levelness when the lead frame conveys, and the transmission stability of whole transport is poor to the receipts material mode of slope stack formula brings very big vexation for follow-up transmission, does not also do not benefit to follow-up packing operation, seriously influences work efficiency and the regularity of stack. To the above technical problem, there is a need for a stacking device capable of automatically receiving materials, and the stacking device can play a role of automatically receiving materials and stacking, and simultaneously can ensure the stability of the whole transportation of the stacks.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects of inconvenience in material collecting and stacking and unstable transportation in the prior art, so that the lead frame material collecting and stacking device is provided.

The technical purpose of the utility model is realized by the following technical scheme:

a lead frame receives material bunching device includes:

the discharging device comprises a discharging frame and a discharging belt, the discharging belt is positioned and rotated on the discharging frame, and one side of the discharging device is provided with a leveling device;

the leveling device is arranged between the discharging device and the stacking structure and comprises a leveling frame, a plurality of leveling rollers and a receiving roller, and a counter is further arranged in the middle of the top of one side, close to the stacking structure, of the leveling device;

the stacking structure comprises a conveyor belt, a lead receiving frame and a stacking frame, wherein the conveyor belt is arranged at the tail end of the leveling device, the lead receiving frame is arranged at the other end of the conveyor belt, and the stacking frame is arranged below the lead receiving frame.

Through adopting above-mentioned technical scheme, set up discharging device, levelling device and stack structure, the lead frame that the punching press was accomplished gets into the conveyer belt via levelling device after ejection of compact area horizontal slip, the frame that draws that connects that sets up receives the lead frame that the horizontal transport came, and guarantee the stability of transportation, the lead frame is through levelling and under the conveyer belt with connect the frame combined action of drawing, the levelness of lead frame body has been guaranteed, later carry out the stack again, avoid receiving the slope of material in-process, be favorable to the planarization of quick stack.

Furthermore, the bilateral symmetry of ejection of compact frame is equipped with spacing limit, spacing border ejection of compact frame length direction sets up, two the interval is unanimous with ejection of compact tape width between the spacing limit.

Through adopting above-mentioned technical scheme, spacing limit joint is in lead frame product both sides, avoids the lead frame to beat in the transportation, guarantees the stationarity of lead frame in the transportation, and simple structure can realize the material conveying of lead frame in order.

Further, the upper surface of the discharging belt is flushed with the top end of the bearing roller, symmetrical limiting rings are arranged on the bearing roller, the limiting rings are sleeved on the bearing roller, the distance between the limiting rings is larger than the width of the discharging belt, the leveling roller is arranged above the bearing roller and positioned to rotate in the leveling frame, and adjusting bolts are further arranged at four corners of the top end of the leveling frame.

Through adopting above-mentioned technical scheme, the carrying roller bears the lead frame that transports, and the spacing ring reduces the lead frame and controls the displacement in the levelling device, and the levelling roller realizes the levelling to the lead frame, guarantees lead frame surfacing, and the adjusting bolt is used for adjusting the distance between levelling roller and the carrying roller, can be adapted to the lead frame of different thickness.

Furthermore, a conveyor belt is arranged at the tail end of the receiving roller, the height of the upper surface of the conveyor belt is lower than that of the receiving roller, the counter is over against the center of the head end of the conveyor belt, and an indicator lamp is further arranged on the counter.

Through adopting above-mentioned technical scheme, the conveyer belt accepts through the lead frame of levelling, and the counter is used for counting the product quantity through the conveyer belt, and the pilot lamp shows the product that passes through the lamp is bright.

Furthermore, the tail end of the conveying belt is provided with a lead frame, a stacking device is arranged in the lead frame and is in communication control connection with the counter, and the upper surface of the conveying belt is flush with the top end of the stacking device.

By adopting the technical scheme, the lead frame brought by the conveying is received by the lead frame, the lead frame is automatically stacked by the stacking device, the stacking device is in communication control connection with the counter, the order of the incoming material stacking process is ensured, and the product redundancy phenomenon on the stacking device is avoided.

Further, it includes expansion bracket, flexible motor and baffle to pile up the device, flexible motor control expansion bracket is to keeping away from each other/being close to the direction motion, expansion bracket direction of motion is perpendicular with the conveyer belt direction of motion, the baffle is fixed and is being drawn the frame and keep away from conveyer belt one end, it has seted up the viewing aperture along its length direction to connect to draw the frame top.

Through adopting above-mentioned technical scheme, the expansion bracket bears the lead frame, and then flexible motor drives the expansion bracket and removes to make the product fall into on the stacker under the action of gravity, the lead frame product departure that the baffle was avoided conveying to come causes the potential safety hazard, and the observation port is convenient for observe the inboard condition of stacking device at any time, in time handles when breaking down.

Further, it is equipped with the piler to pile up the device below, the piler includes that the bottom accepts the board and establishes the guide post in accepting the board four corners, it is equipped with the through-hole to accept the board center, the guide post top is the inclined plane setting.

Through adopting above-mentioned technical scheme, accept the board and be used for the stack lead frame, the lead frame that is convenient for on guide post top inclined plane falls down, accepts the board center and reduces and accept the board dead weight, the follow-up transportation of also being convenient for.

Furthermore, a conveying device is arranged beside the stacking structure, the moving direction of the conveying device is perpendicular to the moving direction of the conveying belt, the conveying device comprises a conveying frame and a conveying belt, and a plurality of stacking frames are uniformly fixed on the outer surface of the conveying belt.

By adopting the technical scheme, the subsequent conveying and packaging are carried out through the conveying device after the stacking is finished, the automatic flow is realized, and the intelligent production is facilitated.

In summary, the technical scheme of the utility model has the following advantages:

1. according to the lead frame receiving and stacking device, the lead frames are leveled, the levelness of the lead frame body is guaranteed under the combined action of the conveyor belt and the guide frame, and then stacking is carried out, so that the inclination in the receiving process is avoided, and the flatness of quick stacking is facilitated.

2. According to the lead frame receiving and stacking device, the receiving plate is used for stacking the lead frames, the inclined surface at the top end of the guide column is convenient for the lead frames to fall down, the self weight of the receiving plate is reduced at the center of the receiving plate, and the follow-up transportation is also convenient.

3. According to the lead frame receiving and stacking device, the telescopic frame bears the lead frames, the baffle prevents lead frame products conveyed by the conveyor belt from flying out, meanwhile, the lead frames close to one side of the baffle can be aligned, and the lead frame products are stacked orderly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic overall structure diagram of a lead frame receiving and stacking device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a leveling device provided in one embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural diagram of a stacking apparatus provided in an embodiment of the present invention.

Description of reference numerals:

1. a discharging device; 11. a discharging frame; 111. a limiting edge; 12. discharging the material belt; 2. a leveling device; 21. leveling frames; 211. adjusting the bolt; 22. leveling rollers; 23. a receiving roller; 231. a limiting ring; 24. a counter; 241. an indicator light; 3. stacking structure; 31. a conveyor belt; 32. a lead frame is connected; 321. a viewing port; 33. a stacking device; 331. a telescopic frame; 332. a telescopic motor; 333. a baffle plate; 34. a stacking rack; 341. a bearing plate; 3411. a through hole; 342. a guide post; 4. a conveying device; 41. a carriage; 42. and (5) conveying the belt.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

A lead frame receiving and stacking device is shown in figure 1 and comprises a discharging device 1, a leveling device 2, a stacking structure 3 and a conveying device 4 which are sequentially arranged, the moving directions of the discharging device 1, the leveling device 2 and the stacking structure 3 are perpendicular to the conveying device 4, the discharging device 1 comprises a discharging frame 11 and a discharging belt 12, the discharging belt 12 is positioned and rotated on the discharging frame 11, the stacking structure 3 comprises a conveying belt 31, a guide frame 32 and a stacking frame 34, the conveying belt 31 is arranged at the tail end of the leveling device 2, the other end of the conveying belt 31 is provided with a guide frame 32, the stacking frame 34 is arranged below the guide frame 32, the conveying device 4 comprises a conveying frame 41 and a conveying belt 42, a plurality of stacking frames 34 are uniformly fixed on the outer surface of the conveying belt 42, the discharging device 1, the leveling device 2 and the stacking structure 3 are arranged, a punched lead frame horizontally slides on the discharging belt 12 and then enters the conveying belt 31 through the leveling device 2, the lead frame that the level was transported is accepted to the frame 32 that draws that connects that sets up to guarantee the stability of transportation, lead frame through the levelling and under conveyer belt 31 with connect the frame 32 combined action, guaranteed the levelness of lead frame body, later carry out the stack again, avoid receiving the slope of material in-process, be favorable to the planarization of quick stack.

As shown in figure 1, the left side and the right side of the discharging frame 11 are symmetrically provided with limiting edges 111, the limiting edges 111 are arranged along the length direction of the discharging frame 11, the width of the two limiting edges 111 is consistent with the width of the discharging belt 12, the limiting edges 111 are connected to two sides of a lead frame product in a clamped mode, the lead frame is prevented from jumping in the transportation process, the stability of the lead frame in transportation is guaranteed, the structure is simple, and the material conveying of the lead frame can be achieved in order.

As shown in fig. 1 and 2, the height of the upper surface of the conveyor belt 31 is lower than that of the receiving roller 23, the counter 24 is opposite to the center of the head end of the conveyor belt 31, the counter 24 is further provided with an indicator light 241, the conveyor belt 31 receives the leveled lead frames, the counter 24 is used for counting the number of products passing through the conveyor belt 31, and the indicator light 241 lights up the passing products. The end of the conveyor belt 31 is provided with a lead frame 32, the lead frame 32 is provided with a stacking device 33, the stacking device 33 is connected with the counter 24 in a communication control mode, the upper surface of the conveyor belt 31 is flush with the top end of the stacking device 33, the lead frame 32 receives the lead frame from the conveyor belt 31, and realize piling up the automation of lead frame through piling up device 33, pile up device 33 and counter 24 communication control and be connected, counter 24 count have a product to send to piling up device 33 through conveyer belt 31, pile up device 33 motion, accomplish counter 24 lamp and dodge, pile up device 33 and pile up, the conveyer belt pauses not to transmit next product in this process, pile up device 33 action feedback signal and give counter 24 after finishing piling up promptly, counter 24 controls conveyer belt 31 transmission again, guarantee the order of incoming material-piling up process, avoid producing the product redundancy phenomenon on piling up device 33.

As shown in fig. 1 and 3, the upper surface of the discharging belt 12 is flush with the top end of the receiving roller 23, two symmetrical limiting rings 231 are arranged at the left end and the right end of the receiving roller 23, the limiting rings 231 are sleeved on the receiving roller 23 and are integrally arranged with the receiving roller 23, the distance between the limiting rings 231 is greater than the width of the discharging belt 12, the leveling roller 22 is arranged above the receiving roller 23 and is positioned and rotated in the leveling frame 21, adjusting bolts 211 are further arranged at four corners of the upper top surface of the leveling frame 21, the receiving roller 23 bears the lead frames which are transported, the limiting rings 231 reduce the left-right displacement of the lead frame leveling frame in the leveling device 2, the leveling roller 22 levels the lead frames, the surface of the lead frames is guaranteed to be flat, the adjusting bolts 211 are used for adjusting the distance between the leveling roller 22 and the receiving roller 23, and can be adapted to lead frames with different thicknesses.

As shown in fig. 1 and 4, the stacking device 33 includes an expansion bracket 331, an expansion motor 332, and a baffle 333, the expansion motor 332 controls the expansion bracket 331 to move in the left and right directions, the two expansion brackets 331 move synchronously and reversely, the movement direction of the expansion bracket 331 is perpendicular to the movement direction of the conveyor belt 31, the baffle 333 is fixed at one end of the lead receiving frame 32 away from the conveyor belt 31, the top end of the lead receiving frame 32 is provided with an observation port 321 along the length direction thereof, the expansion bracket 331 carries the lead frame, and then the expansion motor 332 drives the expansion bracket 331 to move, so that the product falls onto the stacking frame 34 under the action of gravity, the baffle 333 avoids the lead frame product conveyed from flying out to cause potential safety hazards, the observation port 321 facilitates observation of the inside condition of the stacking device 33 at any time, and timely processes when a fault occurs.

As shown in fig. 1 and 4, a stacker frame 34 is arranged below the stacking device 33, the stacker frame 34 includes a bottom receiving plate 341 and guiding columns 342 arranged at four corners of the top surface of the receiving plate 341, a through hole 3411 is arranged at the center of the receiving plate 341, the top ends of the guiding columns 342 are arranged in an inclined plane, the receiving plate 341 is used for stacking lead frames, the inclined plane at the top end of the guiding column 342 facilitates the lead frames to fall down, the dead weight of the receiving plate 341 is reduced at the center of the receiving plate 341, and the subsequent transportation is facilitated.

The working principle and the using method of the lead frame material receiving and stacking device are as follows: during the use, the lead frame is by the punch press to discharging device 1 on, discharging belt 12 carries the lead frame to levelling device 2, levelling roller 22 and accepting roller 23 combined action are leveled the lead frame, then the lead frame continues to carry and pass through counter 24, the lamp is bright and count when the counter 24, simultaneously with flexible motor 332 communication control connection, expansion bracket 331 is in the state of being close to, the lead frame is kept away from by conveyer belt 31 to expansion bracket 331, later two expansion brackets 331 of flexible motor 332 control, make the lead frame fall into stacker 34 under self action of gravity, wait the certain lead frame of stack, conveyor 4 carries out the whole and carries out follow-up operation.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a lead frame receives material bunching device which characterized in that includes:

the discharging device (1) comprises a discharging frame (11) and a discharging belt (12), the discharging belt (12) is positioned and rotated on the discharging frame (11), and one side of the discharging device (1) is provided with a leveling device (2);

the leveling device (2) is arranged between the discharging device (1) and the stacking structure (3), the leveling device (2) comprises a leveling frame (21), a plurality of leveling rollers (22) and a bearing roller (23), and a counter (24) is further arranged in the middle of the top of one side, close to the stacking structure (3), of the leveling device (2);

the stacking structure (3), the stacking structure (3) include conveyer belt (31), connect and draw frame (32) and stacker (34), establish at levelling device (2) end conveyer belt (31), conveyer belt (31) other end is equipped with connects and draws frame (32), it is equipped with stacker (34) to connect to draw frame (32) below.

2. The lead frame receiving and stacking device of claim 1, wherein the discharging rack (11) is symmetrically provided with limiting edges (111) at two sides, the limiting edges (111) are arranged along the length direction of the discharging rack (11), and the interval between the two limiting edges (111) is consistent with the width of the discharging belt (12).

3. The lead frame receiving and stacking device as claimed in claim 2, wherein the upper surface of the discharging belt (12) is flush with the top end of the receiving roller (23), the receiving roller (23) is provided with symmetrical limiting rings (231), the limiting rings (231) are sleeved on the receiving roller (23) and the distance between the limiting rings (231) is greater than the width of the discharging belt (12), the leveling rollers (22) are arranged above the receiving roller (23) and are positioned and rotated in the leveling frame (21), and four corners of the top end of the leveling frame (21) are further provided with adjusting bolts (211).

4. The lead frame receiving and stacking device as claimed in claim 3, wherein a conveyor belt (31) is arranged at the tail end of the receiving roller (23), the height of the upper surface of the conveyor belt (31) is lower than that of the receiving roller (23), the counter (24) is opposite to the center of the head end of the conveyor belt (31), and an indicator lamp (241) is further arranged on the counter (24).

5. Lead frame receiving and stacking device according to claim 4, characterized in that the end of the conveyor belt (31) is provided with a receiving frame (32), the receiving frame (32) is provided with a stacking device (33), the stacking device (33) is in communication control connection with the counter (24), and the upper surface of the conveyor belt (31) is flush with the top end of the stacking device (33).

6. The lead frame receiving and stacking device of claim 5, wherein the stacking device (33) comprises an expansion frame (331), an expansion motor (332) and a baffle (333), the expansion motor (332) controls the expansion frame (331) to move in a direction away from/close to each other, the expansion frame (331) moves in a direction perpendicular to the moving direction of the conveyor belt (31), the baffle (333) is fixed at one end of the lead receiving frame (32) away from the conveyor belt (31), and the top end of the lead receiving frame (32) is provided with a viewing port (321) along the length direction thereof.

7. The lead frame receiving and stacking device as claimed in claim 6, wherein a stacking rack (34) is arranged below the stacking device (33), the stacking rack (34) comprises a bottom receiving plate (341) and guiding columns (342) arranged at four corners of the receiving plate (341), a through hole (3411) is formed in the center of the receiving plate (341), and the top ends of the guiding columns (342) are arranged in an inclined plane.

8. The lead frame receiving and stacking device of claim 1, wherein a conveying device (4) is further arranged beside the stacking structure (3), the moving direction of the conveying device (4) is perpendicular to the moving direction of the conveyor belt (31), the conveying device (4) comprises a conveying frame (41) and a conveyor belt (42), and a plurality of stacking frames (34) are uniformly fixed on the outer surface of the conveyor belt (42).