Material box discharging blocking structure

Abstract

The utility model discloses a material box discharging blocking structure which comprises a material box body and a blocking strip, the blocking strip is arranged on one side of the discharging end of the material box body, a notch allowing materials to be pushed out of the material box is formed in the blocking strip, and a blocking rod capable of being opened and closed is arranged at the position of the notch. The discharging end of the material box body is further provided with a sensor used for detecting the opening and closing states of the stop lever. According to the utility model, the sensor used for detecting the opening and closing states of the stop lever is arranged at the discharge end of the material box body, so that an alarm can be given or the machine can be stopped in time when the stop lever is opened abnormally, the risks of material falling, material stacking and material blocking are reduced, the chip feeding rate of each package is improved, the material scrap is reduced, and the production cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor processing, in particular to a material box discharging blocking structure. Background Art

[0002] Lead frame is one of the important raw materials for producing semiconductor components. The lead frame needs to go through multiple steps such as loading, loading, and cleaning during the production process. The raw material of the lead frame is sheet copper material, which is punched into a finished lead frame through a die. The lead frame is usually stored in a material box during production, and the material box is used to realize the loading and unloading processes. The material box is driven up and down by a lifting mechanism during loading and unloading, and the lead frame is pushed out of the material box by a frame push mechanism.

[0003] At present, in order to prevent the lead frame from falling out of the material box under abnormal circumstances, a baffle is usually set at one end of the material box for discharging, and then a discharging port is set on the baffle, and a switchable baffle is set at the discharging port. When the lead frame needs to be taken out, it only needs to open the baffle to achieve normal discharging. However, in actual use, it is easy for the lead frame to push open the baffle due to equipment failure or the baffle is opened or forgotten to be closed due to operator error. At this time, when the material box moves up and down, the lead frame will collide with the baffle, causing the lead frame to deform, resulting in material scrapping, equipment damage, and increased production costs for the enterprise. Utility Model Content

[0004] The utility model aims at the defects of the prior art and provides a material box discharging blocking structure, which reduces the phenomenon of lead frame material jamming and material dropping, improves the equipment operation efficiency and reduces the equipment failure rate.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A material box discharging blocking structure includes a material box body and a blocking bar, wherein the blocking bar is arranged on one side of the material box body discharging end, the blocking bar is provided with a notch for materials to be pushed out of the material box, the notch is provided with a switchable blocking rod, and the material box body is also provided with a sensor for detecting the opening and closing state of the blocking rod. By arranging a sensor for detecting the opening and closing state of the blocking rod at the material box body discharging end, an alarm can be issued or the machine can be stopped in time when the blocking rod is opened abnormally, thereby reducing the risk of material dropping, material stacking, and material jamming, improving the core rate of each package, reducing material scrapping, and reducing the production cost of the enterprise.

[0007] As a preferred technical solution, it also includes a controller and an indicator light, wherein the indicator light and the sensor are both communicatively connected to the controller, and the indicator light displays lights of different colors according to information detected by the sensor.

[0008] As a preferred technical solution, the indicator light is installed on the sensor.

[0009] As a preferred technical solution, the sensor is fixedly installed on the stop bar and is located above the stop lever.

[0010] As a preferred technical solution, the stop lever is rotatably installed at the notch through a rotating shaft, and the axis of the rotating shaft is parallel to the length direction of the stop lever.

[0011] As a preferred technical solution, a return spring for keeping the stop lever in an open state or a closed state is provided on the stop lever.

[0012] As a preferred technical solution, a detection light source is provided on the sensor, and the irradiation direction of the detection light source is parallel to the length direction of the stop lever. When the stop lever is in the closed state, the detection light source irradiates the upper end face of the stop lever.

[0013] As a preferred technical solution, layered material storage grooves are provided on two opposite inner side walls of the cartridge body. An installation plate is provided on the outside of the cartridge body. The stop bar has a connecting plate connected to the installation plate and a blocking plate blocking the discharge end of the material storage groove, and the notch is provided on the blocking plate.

[0014] As a preferred technical solution, the connecting plate and the blocking plate are integrally connected.

[0015] As a preferred technical solution, a limiting strip for guiding the lifting of the cartridge body is further provided on the outside of the cartridge body.

[0016] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, by providing a sensor for detecting the open and closed states of the stop lever at the discharge end of the cartridge body, an alarm can be issued or the machine can be stopped in time when the stop lever is opened abnormally, thereby reducing the risks of material dropping, stacking, and jamming, improving the core loading rate of each encapsulation, reducing material waste, and lowering the production cost of the enterprise.

[0017] To more clearly illustrate the structural features, technical means, and the specific purposes and functions achieved by the present utility model, the following further detailed description of the present utility model will be given in conjunction with the drawings and specific embodiments: Description of the Drawings

[0018] Figure 1 is the assembled structural schematic diagram of the embodiment of the present utility model;

[0019] Figure 2 is the exploded structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 3 is the installation structural schematic diagram of the stop lever of the embodiment of the present utility model;

[0021] Figure 4 is Figure 3 An enlarged schematic view of part A in

[0022] Explanation of the attached drawing reference numerals:

[0023] 10. Cartridge body, 11. Material storage groove, 12. Mounting plate

[0024] 13. Limit strip, 20. Stop strip, 21. Notch

[0025] 22. Connecting plate, 23. Blocking plate, 30. Stop rod

[0026] 40. Sensor, 41. Indicator light, 42. Detection light source Specific embodiments

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As Figures 1-4 shown, a material box discharge blocking structure of the present utility model includes a cartridge body 10 and a stop strip 20. The stop strip 20 is provided on one side of the discharge end of the cartridge body 10. A notch 21 for pushing the material out of the cartridge is provided on the stop strip 20. A switchable stop rod 30 is provided at the notch 21. A sensor 40 for detecting the open and closed states of the stop rod 30 is further provided at the discharge end of the cartridge body 10.

[0030] In this utility model, a controller (not shown) and an indicator light 41 are further included. The indicator light 41 and the sensor 40 are both communicatively connected to the controller, and the indicator light 41 displays lights of different colors according to the information detected by the sensor 40. Specifically, the indicator light 41 is installed on the sensor 40, the sensor 40 is fixedly installed on the stop bar 20 and is located above the blocking rod 30. The blocking rod 30 is rotatably installed at the notch 21 through a rotating shaft, the axis of the rotating shaft is parallel to the length direction of the blocking rod 30, and a return spring (not shown) for keeping the blocking rod 30 in an open state or a closed state is provided on the blocking rod 30. When normal discharging is required, the blocking rod 30 can be manually toggled to rotate the blocking rod 30 away from the notch 21 around the rotating shaft, so that the blocking rod 30 is in an open state. A detection light source 42 is provided on the sensor 40, and the irradiation direction of the detection light source 42 is parallel to the length direction of the blocking rod 30. When the blocking rod 30 is in the closed state, the detection light source 42 irradiates the upper end surface of the blocking rod 30. In this utility model, when the blocking rod 30 is in the closed state, the material cannot be pushed out from the material box body 10. When the blocking rod 30 is in the open state, the material can be pushed out from the material box body 10. When the detection light source 42 of the sensor 40 can irradiate the upper end surface of the blocking rod 30, the blocking rod 30 is in the closed state at this time, and the indicator light 41 displays green. At this time, the material box body 10 can be lifted and lowered normally. When the detection light source 42 of the sensor 40 cannot irradiate the upper end surface of the blocking rod 30, the blocking rod 30 is in the open state at this time, and the indicator light 41 displays yellow. At this time, the controller controls the device to alarm, or makes the material box body 10 unable to be lifted and lowered normally, so as to prevent phenomena such as material stacking, material dropping, and material jamming caused by lifting under the condition that the material is pushed out.

[0031] It should be understood that in actual applications, the sensor 40 can also be installed on the stop bar 20 below the blocking rod 30, or directly installed on the blocking rod 30, and the indicator light 41 can also display other colors.

[0032] In this utility model, layered material storage grooves 11 are provided on two opposite inner side walls of the material box body 10. An installation plate 12 is provided on the outside of the material box body 10. The stop bar 20 has a connecting plate 22 connected to the installation plate 12 and a blocking plate 23 blocking the discharge end of the material storage groove 11. The connecting plate 22 and the blocking plate 23 are integrally connected, and the notch 21 is provided on the blocking plate 23. A limiting strip 13 for guiding the lifting of the material box body 10 is further provided on the outside of the material box body 10. In actual production, the installation plate 12 and the limiting strip 13 are fixedly installed on the frame of the equipment, the stop bar 20 is fixedly installed on the installation plate 12, and when the material box body 10 is lifted and lowered, it moves relative to the stop bar 20. When the blocking rod is opened, the material in the material storage groove 11 located at the notch 21 can be pushed out from the notch 21.

[0033] In summary, the utility model is provided with a sensor for detecting the open and closed states of the blocking rod at the discharging end of the material box body, so that an alarm can be issued in time or the machine can be stopped when the blocking rod is opened abnormally, avoiding the situation that the lifting of the material box body causes the material to contact the blocking strip when the material is pushed out abnormally, thereby reducing the risks of material dropping, stacking and jamming, improving the core loading rate of each encapsulation, reducing material scrapping, and lowering the production cost of the enterprise.

[0034] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments according to the actual technology of the utility model still fall within the scope of the technical solutions of the utility model.

Claims

1. A material box discharging blocking structure, comprising a material box body and a blocking bar, characterized in that: The baffle is arranged on one side of the discharge end of the material box body, and a notch is provided on the baffle for pushing the material out of the material box. A switchable baffle is provided at the notch, and a sensor for detecting the opening and closing status of the baffle is also provided at the discharge end of the material box body.

2. A material box discharging blocking structure according to claim 1, characterized in that: The device also includes a controller and an indicator light. The indicator light and the sensor are both connected to the controller for communication. The indicator light displays lights of different colors according to information detected by the sensor.

3. A material box discharging blocking structure according to claim 2, characterized in that: The indicator light is installed on the sensor.

4. A material box discharging blocking structure according to claim 1, characterized in that: The sensor is fixedly mounted on the baffle bar and is located above the baffle rod.

5. A material box discharging blocking structure according to claim 4, characterized in that: The blocking rod is rotatably installed at the notch via a rotating shaft, and the axis of the rotating shaft is parallel to the length direction of the blocking rod.

6. A material box discharging blocking structure according to claim 5, characterized in that: The baffle rod is provided with a return spring which keeps the baffle rod in an open state or a closed state.

7. A material box discharging blocking structure according to claim 6, characterized in that: The sensor is provided with a detection light source, the irradiation direction of the detection light source is parallel to the length direction of the barrier rod, and when the barrier rod is in a closed state, the detection light source irradiates the upper end surface of the barrier rod.

8. The material box discharging blocking structure according to claim 1, characterized in that: The two opposite inner walls of the material box body are provided with layered material storage grooves distributed up and down, and a mounting plate is provided on the outer side of the material box body. The baffle has a connecting plate connected to the mounting plate and a blocking plate blocking the discharge end of the material storage groove. The connecting plate is integrally connected to the blocking plate, and the notch is provided on the blocking plate.

9. A material box discharging blocking structure according to claim 1, characterized in that: A limiting strip for guiding the lifting and lowering of the material box body is also provided on the outer side of the material box body.

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