Lead frame processing and receiving device

Abstract

The utility model provides a material receiving device for lead frame processing, and belongs to the technical field of electronic component processing. The platen is arranged behind the outlet of the punching machine, the upper counting assembly is arranged on the platen, the supports on the two sides of the upper counting assembly are arranged on the two sides of the outlet of the punching machine respectively, the supporting frames capable of stretching out or drawing back are arranged on the supports, and the counting sensor is installed on the support on one side. A lower collecting and feeding assembly comprising a plurality of conveying belts is arranged below an upper counting assembly, so that lead frames sent out from an outlet of a punching machine can be supported by a bearing frame firstly and are counted independently through a counting sensor, and the counted lead frames fall onto the conveying belts and are stacked under the guiding effect of a side support. And after being stacked to the preset number, the materials are conveyed out through the conveying belt, the collecting and arranging requirements are met, manual participation is not needed, the workload is lower, the machining efficiency is higher, meanwhile, the safety risk existing in manual arranging can be avoided, and the machining safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component processing, in particular to a lead frame processing and receiving device. Background Art

[0002] As a conductive connection structure for some electronic components on the market, the lead frame can realize the electrical connection between the lead-out terminals of the internal circuit of the chip and the external leads, and can realize the bridging of the electronic components and external wires. It is a basic product in the field of modern electronics.

[0003] When processing lead frames, usually multiple groups of lead frames are arranged on a strip according to a predetermined rule and then punched out by a die, that is, multiple groups of lead frames are reasonably arranged in advance according to the size of the strip, and then the corresponding stamping die is made according to the layout result, so that when the strip passes through the stamping die, multiple groups of lead frames can be punched out by the stamping die. However, the existing stamping machine does not have a material receiving device, that is, when a group of lead frames is stamped and cut off and sent out, it will fall directly into the material barrel, and then it will be manually sorted, resulting in the random accumulation of lead frames at the outlet of the stamping machine, which not only poses a risk of blocking the outlet of the stamping machine, but also easily causes the lead frames to bend and deform. In addition, some manufacturers on the market have installed a conveyor belt at the exit of the stamping machine, so that each set of lead frames that are cut and sent out can fall onto the conveyor belt, and then the lead frames it receives are transported out in a predetermined direction through the conveyor belt, and are manually sorted in subsequent processes. Although this can avoid the problem of lead frame accumulation at the exit of the stamping machine, prevent the stamping machine exit from being blocked and cause the lead frame to bend and deform, it still needs to be sorted manually, which not only increases the labor burden, but also poses certain safety risks during the sorting process due to the sharp edges of the stamping parts. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a lead frame processing and receiving device, in which an upper counting assembly and a lower collecting and feeding assembly are arranged behind the exit of the punching machine, and the upper counting assembly and the lower collecting and feeding assembly are arranged in upper and lower layers in the vertical direction. At the same time, the upper counting assembly corresponds to the exit of the punching machine, so that the lead frame after punching and cutting can first enter the upper counting assembly for counting, and then fall into the lower collecting and feeding assembly, and then be sent out in batches after accumulating a predetermined number of lead frames, so that counting and sorting can be performed while realizing self-feeding and receiving, without manual participation, which not only reduces the labor burden and improves processing efficiency, but also avoids the safety risks of manual sorting.

[0005] The specific technical solutions are as follows:

[0006] A lead frame processing and receiving device has the following characteristics, including:

[0007] A platen, which is arranged at the exit of the punching machine;

[0008] An upper counting assembly is arranged on the table, and includes a side bracket, a support bracket and a counting sensor. The side bracket is installed on the table and located on both sides of the punching machine outlet. The support bracket is installed on the upper part or the middle part of the side bracket, and the support bracket moves on the side bracket to extend into or withdraw from the space between the two side brackets. The counting sensor is installed on the side bracket and the detection head is arranged toward the space between the two side brackets.

[0009] The lower collecting and feeding assembly is arranged below the upper counting assembly, and includes a plurality of conveyor belts, which are arranged in parallel and at intervals below the table. The plurality of conveyor belts are all installed on the table, and each conveyor belt is arranged along a direction perpendicular to the discharge direction of the punching machine, and the conveyor belt is located below the side bracket.

[0010] The above-mentioned lead frame processing and collecting device, wherein the side bracket includes a left bracket and a right bracket, the lower end of the left bracket contacts the table and extends to the belt surface of the conveyor belt, and a gap is set between the lower end of the right bracket and the belt surface of the conveyor belt.

[0011] The above-mentioned lead frame processing and collecting device, wherein the left bracket and the right bracket both include a vertical plate, an end bracket and a mounting base plate, the vertical plate is arranged in the vertical direction, and both ends of the vertical plate are provided with end brackets arranged in the vertical direction. At the same time, a mounting base plate is provided at the bottom end of each end bracket, and the mounting base plate is fixedly installed on the table plate.

[0012] The above-mentioned lead frame processing and collecting device, wherein the support bracket includes a telescopic strip and a telescopic driver, the upper part or the middle part of the two side brackets are provided with a penetrating telescopic hole along the discharge direction of the punching machine, the telescopic strips are installed in the telescopic holes in the same direction, and a telescopic driver is provided on the opposite side of the two side brackets, and the telescopic shafts of the two telescopic drivers are respectively extended into the telescopic holes of the corresponding side brackets and connected to the corresponding telescopic strips.

[0013] In the above-mentioned lead frame processing and receiving device, each conveyor belt includes a driving wheel, a driven wheel and a belt body, the driving wheel and the driven wheel are arranged at intervals and are rotatably installed on the table, and the belt body is wound between the corresponding driving wheel and the driven wheel.

[0014] The above-mentioned lead frame processing and collecting device, wherein the driving wheels of several conveyor belts are located on the same side of the table, and the axes of the driving wheels of several conveyor belts are located on the same straight line, a driving shaft passes through each driving wheel along the axis of the driving wheel, and the driving shaft is dynamically connected to a feeding driver.

[0015] The above-mentioned lead frame processing and collecting device further includes a reducer, which is arranged between the feeding driver and the driving shaft, and the reducer is a three-stage gear reducer.

[0016] The above-mentioned lead frame processing and collecting device also includes a guide assembly, which includes a mounting bar and a plurality of guide bars. The mounting bar is horizontally placed on the two side brackets and is located at one end close to the punch outlet. One end of the plurality of guide bars is arranged on the mounting bar, and the other ends of the plurality of guide bars are arranged toward the punch outlet, and the other end of each guide bar is provided with a guide slope.

[0017] In the above-mentioned lead frame processing and receiving device, the guiding inclined surface is formed by bending the end of the guiding bar downward, and the guiding bar is a spring sheet structure.

[0018] The positive effects of the above technical solution are:

[0019] The above-mentioned lead frame processing and receiving device is provided with a table at the outlet of the punch press, and an upper counting component is provided on the table and behind the outlet of the punch press. At the same time, a lower collecting and feeding component is provided on the table and below the upper counting component, so that the lead frame sent out from the outlet of the punch press can first enter the upper counting component for individual counting, and fall into the lower collecting and feeding component after the counting is completed, and be stacked in the lower collecting and feeding component, so as to realize the collection and sorting of the lead frame, and after being stacked to a predetermined number, they are uniformly sent out through the lower collecting and feeding component, without the need for manual collection and sorting, thereby reducing the processing burden and improving the processing efficiency. At the same time, it can also avoid the safety risks of manual sorting, and has higher safety assurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an embodiment of a lead frame processing and collecting device of the utility model;

[0021] Figure 2 This is a schematic diagram of the installation of an upper counting component and a lower collecting and feeding component in a preferred embodiment of the utility model;

[0022] Figure 3 This is a structural diagram of an upper counting assembly according to a preferred embodiment of the present utility model.

[0023] In the accompanying drawings: 1. table; 2. upper counting assembly; 21. side bracket; 22. supporting frame; 23. counting sensor; 211. vertical plate; 212. end vertical frame; 213. mounting base; 214. telescopic hole; 221. telescopic strip; 222. telescopic drive; 3. lower collecting and feeding assembly; 31. conveyor belt; 311. driving wheel; 312. driven wheel; 313. belt body; 314. driving shaft; 315. feeding drive; 4. guide assembly; 41. mounting strip; 42. guide strip; 421. guide slope. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 3 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.

[0025] Figure 1 It is a structural diagram of an embodiment of a lead frame processing and collecting device of the utility model; Figure 2 This is a schematic diagram of the installation of the upper counting component and the lower collecting and feeding component of a preferred embodiment of the utility model. Figure 1 and Figure 2 As shown, the lead frame processing and receiving device provided in this embodiment includes: a table 1, an upper counting component 2 and a lower collecting and feeding component 3.

[0026] Specifically, the platform 1 is arranged at the exit of the punching machine, and the platform 1 is used as an installation and working platform to facilitate the subsequent installation of the upper counting component 2 and the lower collecting and feeding component 3. Preferably, the bottom of the platform 1 is provided with legs, which ensure the stability of the installation of the platform 1 and also ensure the support capacity of the platform 1.

[0027] Figure 3 This is a structural diagram of the upper counting component of a preferred embodiment of the utility model. Figures 1 to 3As shown, the upper counting assembly 2 is arranged on the table 1. At this time, the upper counting assembly 2 includes a side bracket 21, a support bracket 22 and a counting sensor 23. The side bracket 21 is installed on the table 1 and is located on both sides of the punch outlet, that is, when the cut lead frame is sent out from the punch outlet, it can enter the space between the two side brackets 21, which provides conditions for the subsequent counting and collection of the lead frame. In addition, the support bracket 22 is installed on the upper part or the middle part of the side bracket 21, so that the support bracket 22 can cooperate with the lead frame in the upper space between the two side brackets 21 to realize separate counting. When in use, the support bracket 22 moves on the side bracket 21 to extend into or out of the space between the two side brackets 21, so that when the lead frame enters between the two side brackets 21, it can be supported by the support bracket 22 first. At this time, it can be identified and counted individually by the counting sensor 23, and then the counted lead frame is dropped by the retreat of the support bracket 22 to achieve the stacking of the lead frame, thereby meeting the collection and sorting of the lead frame. In addition, the counting sensor 23 is installed on the side bracket 21. At this time, the detection head of the counting sensor 23 is arranged toward the space between the two side brackets 21, so that the lead frame sent out from the punching machine outlet can be counted by the counting sensor 23 when it is supported by the support bracket 22, which provides data support for the subsequent statistics of the total number and the number of lead frames sorted each time during sorting. It is worth pointing out that the counting sensor 23 can be a photoelectric sensor or a distance sensor commonly used on the market, which can realize counting when the lead frame is supported. Since there are many types of counting sensors 23 on the market and they are common technologies, their specific model selection and working principle will not be repeated here.

[0028] Specifically, the lower collecting and feeding assembly 3 is arranged below the upper counting assembly 2, so that the counted lead frame can fall into the lower collecting and feeding assembly 3. In addition, the lower collecting and feeding assembly 3 includes a plurality of conveyor belts 31. During installation, the plurality of conveyor belts 31 are arranged in parallel and at intervals below the platen 1, and the arrangement direction of the plurality of sensors is arranged along the length direction of the lead frame, so that different parts of the lead frame falling from the upper counting assembly 2 can be supported by different conveyor belts 31 respectively. At this time, several conveyor belts 31 are installed on the table 1, and each conveyor belt 31 is arranged perpendicular to the discharge direction of the punching machine. At the same time, the conveyor belt 31 is set below the side bracket 21, so that the lead frame dropped from the upper counting component 2 can fall onto the conveyor belt 31 in the lower collecting and feeding component 3 under the guiding action of the supports on both sides, and is continuously stacked on the conveyor belt 31 to realize the collection and sorting of the lead frames. After stacking to a predetermined number, the conveyor belt 31 moves to send out the stacked lead frames, meeting the use requirements of automatic collection and sorting, without manual operation and sorting, more convenient operation, reduced workload, improved processing efficiency, and effectively avoiding the safety risks of manual sorting, thereby improving safety.

[0029] More specifically, the side brackets 21 located on both sides of the punching machine outlet are the left bracket and the right bracket, respectively. At this time, the lower end of the left bracket contacts the platen 1 and extends to the belt surface of the conveyor belt 31, that is, in the vertical direction, the left bracket can be continuous, so as to achieve continuous guidance of the fallen lead frame and maintain the neatness of the stacked lead frame. In addition, a gap is set between the lower end of the right bracket and the belt surface of the conveyor belt 31, so that there is space between the bottom of the right bracket and the belt surface of the conveyor belt 31 for the stacked lead frame to be transferred out, ensuring that the collected and sorted lead frames can be smoothly sent out without being blocked by the right bracket, and the structural design is more reasonable.

[0030] More specifically, the left bracket and the right bracket both include a vertical plate 211, an end bracket 212, and a mounting base plate 213. During installation, the vertical plate 211 is arranged in the vertical direction, and the length direction of the vertical plate 211 is the discharge direction of the punch outlet, so that the length of the vertical plate 211 can correspond to the length of the lead frame, providing conditions for guiding the delivered lead frame. In addition, end brackets 212 arranged in the vertical direction are provided at both ends of the vertical plate 211. At this time, the upper ends of the brackets are welded to the two ends of the vertical plate 211. At the same time, a mounting base plate 213 is provided at the bottom end of each end bracket 212. The bottom area of ​​the end bracket 212 is expanded by mounting the base plate 213, so that when the mounting base plate 213 is fixedly installed on the table 1, the installation is more stable and the bearing effect is better.

[0031] More specifically, the support bracket 22 disposed on the side bracket 21 further includes a telescopic bar 221 and a telescopic driver 222. During installation, the upper or middle parts of the two side brackets 21 are provided with a penetrating telescopic hole 214 along the discharge direction of the punching machine, so that the length direction of the telescopic hole 214 is also consistent with the length direction of the lead frame. At this time, the telescopic bar 221 is installed in the telescopic hole 214 in the same direction, so that the length direction of the telescopic bar 221 is consistent with the length direction of the lead frame, so that the lead frame can be fully supported by the telescopic bar 221 in the future, ensuring the stability of the supported lead frame. In addition, a telescopic driver 222 is provided on the opposite side of the two side brackets 21, and at the same time, the telescopic axes of the two telescopic drivers 222 are respectively extended into the telescopic holes 214 of the corresponding side brackets 21 and connected to the corresponding telescopic bars 221. In the initial state, the telescopic driver 222 causes one side of the two telescopic bars 221 to extend into the space between the two side brackets 21 through the telescopic shaft, and a protruding supporting structure is formed on the two side brackets 21, so that the lead frame sent out from the outlet of the punching machine can be supported by the two telescopic bars 221 when entering the space between the two side brackets 21, which provides conditions for the subsequent counting sensor 23 to perform individual counting. When the counting is completed, the telescopic driver 222 drives the telescopic bars 221 to retract into the corresponding telescopic holes 214. At this time, the lead frame supported by the telescopic bars 221 directly falls downward onto the several conveyor belts 31 of the lower collection and feeding assembly 3, and is guided by the two side brackets 21 during the falling process, so that the lead frames that fall in sequence are stacked on the several conveyor belts 31, so as to realize the collection and sorting of the lead frames. When the number of lead frames that fall reaches a preset number, the lead frames collected by the conveyor belt 31 can be started to be uniformly transported out, avoiding the problem of separate collection and sorting, reducing the labor burden, improving the processing efficiency, and also avoiding the safety risks of manual collection and sorting.

[0032] More specifically, each conveyor belt 31 of the lower collecting and feeding assembly 3 includes a driving wheel 311, a driven wheel 312 and a belt body 313. During installation, the driving wheel 311 and the driven wheel 312 are arranged at intervals and are rotatably installed on the table 1, and the belt body 313 is wound between the corresponding driving wheel 311 and the driven wheel 312, so that when the driving wheel 311 rotates, it can drive the belt body 313 to move, thereby transporting the lead frame that falls onto the belt surface of the belt body 313, thereby meeting the use requirements of collecting and sorting the lead frames.

[0033] More specifically, the driving wheels 311 of several conveyor belts 31 are all located on the same side of the table 1. Preferably, the axes of the driving wheels 311 of several conveyor belts 31 are located on the same straight line. At this time, a driving shaft 314 is designed, and the driving shaft 314 passes through each driving wheel 311 along the axis of the driving wheel 311, and each driving wheel 311 is key-connected to the driving shaft 314. At the same time, the driving shaft 314 is power-connected to a feeding driver 315, so that the feeding driver 315 can drive multiple conveyor belts 31 to move at the same time. When the collected and sorted lead frames with the required quantity need to be transported out through the conveyor belt 31, the driving shaft 314 is driven to rotate by the feeding driver 315, and all the driving wheels 311 are driven to rotate by the driving shaft 314 synchronously, so as to realize the synchronous transportation of all conveyor belts 31, maintain the stability of the lead frame during transportation, avoid the problem of lead frame tipping during transportation due to the asynchronous conveyor belt 31, and have higher safety assurance.

[0034] More specifically, a reducer is also arranged between the feeding drive 315 and the driving shaft 314. Preferably, the reducer is a three-stage gear reducer, which can achieve low-speed and high-torque output, ensuring the stability of the stacked lead frames when transmitting the stacked lead frames to avoid tipping problems, while also providing greater conveying force and better carrying capacity.

[0035] More specifically, a guide assembly 4 is also provided on the upper counting assembly 2. At this time, the guide assembly 4 includes a mounting bar 41 and a plurality of guide bars 42. When installing, the mounting bar 41 is horizontally placed on the two side brackets 21 and located at one end close to the punching machine outlet. The mounting bar 41 not only connects the two side brackets 21 together to improve the structural strength, but also serves as a mounting carrier for the subsequent guide bars 42. In addition, one end of the plurality of guide bars 42 is disposed on the mounting bar 41. Preferably, the guide bar 42 and the mounting bar 41 are connected by bolts, which is convenient for the subsequent replacement of the guide bars 42 after wear. In addition, the other ends of the plurality of guide bars 42 are arranged toward the exit of the punch press, and a guide slope 421 is provided at the other end of each guide bar 42, so that when the lead frame is cut and sent out from the exit of the punch press, in order to ensure that the lead frame horizontally enters between the two side brackets 21 and is supported by the support bracket 22, and also to prevent the end of the lead frame from tilting up and colliding with the counting sensor 23, etc., the end of the lead frame can enter the upper counting component 2 in a horizontal state under the guidance of the guide slope 421.

[0036] More specifically, the guide slope 421 is formed by bending the end of the guide bar 42 downward, which is more convenient to process. Preferably, the guide bar 42 is a spring structure, so that the guide bar 42 is a flexible structure, which can be deformed in an unexpected situation to avoid the risk of getting stuck or breaking, and has higher safety assurance.

[0037] The lead frame processing and receiving device provided in this embodiment includes a table 1, an upper counting component 2 and a lower collecting and feeding component 3; the table 1 is arranged behind the punching machine outlet, and at the same time, two side brackets 21 of the upper counting component 2 are arranged on the table 1 and on both sides of the punching machine outlet, and at the same time, a support bracket 22 that can extend or retract in the space between the two side brackets 21 is arranged on each side bracket 21, and a counting sensor 23 is installed on one side bracket 21, so that the lead frame sent out from the punching machine outlet can be supported by the support bracket 22 first and counted individually by the counting sensor 23, and in addition, a lower collecting and feeding component 3 including a plurality of conveyor belts 31 is arranged below the upper counting component 2, so that the lead frame after counting can fall onto the conveyor belt 31, and be stacked under the guiding action of the side bracket 21, so as to realize the collection and sorting of the lead frame, and convey it out through the conveyor belt after stacking to a predetermined number, without manual participation, reducing the workload, improving the processing efficiency, and avoiding the safety risks of manual sorting, thereby improving the processing safety.

[0038] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead frame processing and collecting device, characterized in that: include: A platen, the platen being arranged at the exit of the punching machine; An upper counting assembly, the upper counting assembly is arranged on the table, the upper counting assembly comprises a side bracket, a support bracket and a counting sensor, the side bracket is installed on the table and located on both sides of the punching machine outlet, the support bracket is installed on the upper part or the middle part of the side bracket, and the support bracket moves on the side bracket to extend into or withdraw from the space between the two side brackets, the counting sensor is installed on the side bracket and the detection head is arranged toward the space between the two side brackets; The lower collecting and feeding assembly is arranged below the upper counting assembly, and includes a plurality of conveyor belts, and the plurality of conveyor belts are arranged in parallel and at intervals below the table, and the plurality of conveyor belts are all installed on the table, and each of the conveyor belts is arranged along a direction perpendicular to the discharge direction of the punching machine, and the conveyor belts are located below the side bracket.

2. The lead frame processing and collecting device according to claim 1, characterized in that: The side bracket includes a left bracket and a right bracket, the lower end of the left bracket contacts the platform and extends to the belt surface of the conveyor belt, and a gap is set between the lower end of the right bracket and the belt surface of the conveyor belt.

3. The lead frame processing and collecting device according to claim 2, characterized in that: The left bracket and the right bracket each include a vertical plate, an end frame and a mounting base plate. The vertical plate is arranged in a vertical direction. The end frames arranged in a vertical direction are disposed at both ends of the vertical plate. At the same time, the mounting base plate is disposed at the bottom end of each end frame, and the mounting base plate is fixedly mounted on the table plate.

4. The lead frame processing and collecting device according to claim 1, characterized in that: The support frame includes a telescopic strip and a telescopic driver. The upper or middle parts of the two side brackets are provided with penetrating telescopic holes along the discharge direction of the punching machine. The telescopic strips are installed in the telescopic holes in the same direction. In addition, a telescopic driver is provided on the opposite sides of the two side brackets. The telescopic shafts of the two telescopic drivers respectively extend into the telescopic holes of the corresponding side brackets and are connected to the corresponding telescopic strips.

5. The lead frame processing and collecting device according to claim 1, characterized in that: Each of the transmission belts comprises a driving wheel, a driven wheel and a belt body. The driving wheel and the driven wheel are arranged at intervals and are both rotatably mounted on the table. The belt body is wound between the corresponding driving wheel and the driven wheel.

6. The lead frame processing and collecting device according to claim 5, characterized in that: The driving wheels of several of the conveyor belts are located on the same side of the table, and the axes of the driving wheels of several of the conveyor belts are located on the same straight line. A driving shaft passes through each of the driving wheels along the axis of the driving wheels, and the driving shaft is dynamically connected to a feeding driver.

7. The lead frame processing and collecting device according to claim 6, characterized in that: It also includes a reducer, which is arranged between the feeding driver and the driving shaft, and is a three-stage gear reducer.

8. The lead frame processing and collecting device according to claim 1, characterized in that: It also includes a guide assembly, which includes a mounting bar and a plurality of guide bars. The mounting bar is horizontally placed on the two side brackets and is located at one end close to the punch outlet. One ends of the plurality of guide bars are all arranged on the mounting bar, and the other ends of the plurality of guide bars are arranged toward the punch outlet, and the other end of each guide bar is provided with a guide slope.

9. The lead frame processing and collecting device according to claim 8, characterized in that: The guiding inclined surface is formed by bending the end of the guiding strip downward, and the guiding strip is a spring sheet structure.

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