Epoxy glue particle weighing and sorting mechanism for plastic packaging system

Abstract

The application relates to a plastic sealing system epoxy glue particle weighing and sorting mechanism and belongs to the technical field of automatic weighing. The plastic sealing system epoxy glue particle weighing and sorting mechanism comprises a connection mechanism, which can connect and place target objects conveyed by a vibrating disc device; a weighing mechanism, which can weigh the target objects; and a clamping jaw mechanism, which can move between the connection mechanism and the weighing mechanism to move the target objects from the connection mechanism to the weighing mechanism. The weighing mechanism comprises a weighing assembly, a containing assembly and a driving assembly connected with the containing assembly. The weighing assembly has a placing part, and the containing assembly has a containing part for containing part of the weighing assembly. The driving assembly drives the containing assembly to move between a first position and a second position. The first position is higher than the second position. When located at the first position, the containing part is located above the placing part or flush with the placing part. When the driving assembly drives the containing assembly to move from the first position to the second position, the placing part is exposed to weigh the target objects. In the above manner, the weighing precision and production efficiency can be improved.

Description

[Technical Field]

[0001] This application relates to a weighing and sorting mechanism for epoxy granules in a molding and sealing system, belonging to the field of automated weighing technology. [Background Technology]

[0002] In the production of epoxy molding compound (EMC) for semiconductor packaging, the granules are the core raw material, and their weighing accuracy and moisture content control directly determine the quality of the molding compound.

[0003] The epoxy granules are conveyed by a vibratory feeder to the epoxy granule weighing and sorting mechanism of the molding system for weighing, and then conveyed from the weighing and sorting mechanism to the transfer mechanism for subsequent processes. In the prior art, the epoxy granule weighing and sorting mechanism of the molding system directly uses a weighing plate to weigh the granules. That is, the granules move directly from the vibratory feeder to the weighing plate. However, because the overall weight of the weighing plate is relatively large, while the weight of the granules themselves is relatively small, the weighing accuracy is low, reducing production efficiency. Furthermore, the epoxy granule weighing and sorting mechanism of the molding system is directly connected to the vibratory feeder, and the vibration of the vibratory feeder affects the weighing and sorting mechanism, interfering with the accuracy of the weighing sensor. If the vibratory feeder is paused and weighing is resumed, production efficiency will be further reduced.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. [Utility Model Content]

[0005] The purpose of this application is to provide a weighing and sorting mechanism for epoxy granules in a molding system, which can improve weighing accuracy and production efficiency.

[0006] The purpose of this application is achieved through the following technical solution: a weighing and sorting mechanism for epoxy granules in a molding compound system, suitable for docking with a vibratory feeder and a transfer device, wherein the epoxy granule weighing and sorting mechanism for the molding compound system comprises:

[0007] A connecting mechanism, adapted to dock with the vibratory feeder device, is configured to dock and place the target object conveyed by the vibratory feeder device.

[0008] A weighing mechanism, located on one side of the connecting mechanism, is configured to weigh the target object;

[0009] A gripper mechanism is configured to move between the connecting mechanism and the weighing mechanism, so that the target object moves from the connecting mechanism to the weighing mechanism;

[0010] The weighing mechanism includes a weighing component, a receiving component, and a driving component connected to the receiving component. The weighing component has a placement part for placing and weighing the target object, and the receiving component has a receiving part for receiving a portion of the weighing component.

[0011] The driving component drives the receiving component to move between a first position and a second position, wherein the first position is higher than the second position in the height direction; when in the first position, the receiving portion is located above or flush with the placement portion; when the driving component drives the receiving component to move from the first position to the second position, the placement portion is exposed to weigh the target object.

[0012] In one embodiment, the weighing assembly includes a weighing detection element, a connector connected to the detection element, and a plurality of placement elements connected to the support element, wherein the placement portion is formed on the placement element;

[0013] When the target object is placed on the placement part, it exerts a first force on the placement part under its own weight. The first force is transmitted to the weighing detection element through the connecting element so that the weighing detection element weighs the target object.

[0014] In one embodiment, the top of the placement member has a first guide surface, and the target object can move to the placement part under the guidance of the first guide surface.

[0015] In one embodiment, the top of the placement member is provided with a groove, which serves as the placement portion.

[0016] In one embodiment, the receiving assembly includes a support base and a support member connected to the support base, the receiving portion being formed on the support member, and the receiving portion being hollowed out.

[0017] In one embodiment, the support member further includes a plurality of protrusions that protrude from the inner wall of the receiving portion, so that the receiving portion forms a plurality of receiving spaces corresponding one-to-one with the placement member;

[0018] The top of the protrusion has a second guide surface, and the target object can move to the placement part under the guidance of the second guide surface.

[0019] In one embodiment, the gripper mechanism includes a first gripper and a second gripper arranged sequentially;

[0020] The first gripper is located between the connecting mechanism and the weighing mechanism, and is adapted to grip the target object on the connecting mechanism onto the weighing mechanism to weigh the target object;

[0021] The second gripper is located at the weighing mechanism to clamp and transport the weighed target object to the transfer device.

[0022] In one embodiment, the gripper mechanism further includes a third gripper located at the docking mechanism and in a fixed position, adapted to grip or release the target object that has moved onto the docking mechanism, so as to keep the target object stationary or to enable the first gripper to grip the target object.

[0023] In one embodiment, the epoxy granule weighing and sorting mechanism of the encapsulation system further includes two blocking mechanisms, one of which is disposed between the connecting mechanism and the weighing mechanism, and the other of which is disposed between the weighing mechanism and the transfer device.

[0024] In one embodiment, each of the blocking mechanisms includes a blocking member, a driving member, and a rotating member connecting the blocking member and the driving member. The driving member drives the rotating member to rotate, thereby driving the blocking member to rotate, thereby enabling communication or obstruction between the connecting mechanism and the weighing mechanism, and between the weighing mechanism and the transfer device.

[0025] Compared with the prior art, this application has the following advantages: The epoxy granule weighing and sorting mechanism of the encapsulation system in this application includes a connecting mechanism, a weighing mechanism, and a gripper mechanism. The connecting mechanism is suitable for docking with the vibratory feeder device and is configured to connect and place the target object conveyed by the vibratory feeder device. The weighing mechanism is located on one side of the connecting mechanism and can weigh the target object. The gripper mechanism can move between the connecting mechanism and the weighing mechanism so that the target object moves from the connecting mechanism to the weighing mechanism. This ensures that the vibration of the vibratory feeder device cannot be transmitted to the weighing mechanism, thus not affecting the weighing accuracy of the weighing mechanism, and eliminating the need to stop the vibratory feeder device. To ensure weighing accuracy and thus improve production efficiency, the weighing mechanism includes a weighing component, a receiving component, and a drive component connected to the receiving component. The weighing component has a placement part for placing and weighing the target object, and the receiving component has a receiving part for accommodating a portion of the weighing component. The drive component drives the receiving component to move between a first position and a second position, with the first position being higher than the second position in the height direction. When in the first position, the receiving part is located above or flush with the placement part. When the drive component drives the receiving component to move from the first position to the second position, the placement part is exposed to weigh the target object, thereby reducing the weight of the weighing component while ensuring weighing accuracy.

[0026] Furthermore, the hollow design of the receiving part allows dust or particles on the target object to fall off through the hollow part, avoiding affecting the weighing accuracy of the target object and further ensuring the overall weighing accuracy and efficiency of the epoxy granule weighing and sorting mechanism of the encapsulation system. [Attached Image Description]

[0027] Figure 1 This is a schematic diagram of the structure of the vibratory feeder device, the epoxy granule weighing and sorting mechanism of the encapsulation system, and the transfer device of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the epoxy granule weighing and sorting mechanism of the encapsulation system of this application.

[0029] Figure 3 yes Figure 2 A partial structural diagram.

[0030] Figure 4 This is a structural schematic diagram of the weighing mechanism of this application.

[0031] Figure 5 This is another structural schematic diagram of the weighing mechanism of this application.

[0032] Figure 6 yes Figure 5 Partial schematic diagram.

Detailed Implementation Methods

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0034] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] Please see Figures 1 to 6As shown, in a preferred embodiment of this application, an epoxy granule weighing and sorting mechanism 200 for a molding compound system is adapted to interface with a vibratory feeder device 100 and a transfer device 300. The vibratory feeder device 100 vibrates the target material to the epoxy granule weighing and sorting mechanism 200, which weighs the target material. Target materials that pass the weighing test are transported to the transfer device 300, while target materials that fail the weighing test are placed directly in a collection box. In this embodiment, epoxy granules are used as an example for specific illustration.

[0037] The vibratory feeder device 100 and the transfer device 300 are conventional structures and will not be described in detail here.

[0038] The epoxy granule weighing and sorting mechanism 200 of the encapsulation system in this embodiment includes a support base 1, a connecting mechanism 3 disposed on the support base 1, a weighing mechanism 2, and a gripper mechanism 4.

[0039] The connecting mechanism 3 is adapted to dock with the vibratory feeder device 100 and is configured to connect and place the target object conveyed by the vibratory feeder device 100. By providing the connecting mechanism 3, the vibration of the vibratory feeder device 100 can be prevented from being transmitted to the weighing mechanism 2, thereby avoiding any impact on the weighing accuracy of the weighing mechanism 2 and ensuring the weighing accuracy of the weighing mechanism 2.

[0040] Weighing mechanism 2 is disposed on one side of connecting mechanism 3 and configured to weigh a target object. Weighing mechanism 2 includes a weighing component 21, a receiving component 22, and a drive component 23 connected to the receiving component 22. The weighing component 21 has a placement portion for placing the target object for weighing, and the receiving component 22 has a receiving portion for accommodating a portion of the weighing component 21. The drive component 23 drives the receiving component 22 to move between a first position and a second position, with the first position being higher than the second position in the height direction. When in the first position, the receiving portion is located above or flush with the placement portion. When the drive component 23 drives the receiving component 22 from the first position to the second position, the placement portion is exposed for weighing the target object.

[0041] With the above settings, the target object is not weighed immediately when it arrives at the weighing mechanism 2; when the receiving component 22 moves from the first position to the second position, the target object is completely placed in the receiving part, and the weighing component 21 weighs the target object, thereby ensuring weighing efficiency.

[0042] The weighing assembly 21 includes a weighing detection element 211, a connecting element 212 connected to the detection element, and several placement elements 213 connected to the support element 222. Placement portions are formed on the placement elements 213. When a target object is placed on the placement portion, its own weight applies a first force to the placement element 213. This first force is transmitted to the weighing detection element 211 via the connecting element 212, causing the weighing detection element 211 to weigh the target object. In this embodiment, a groove is provided on the top of the placement element 213, serving as the placement portion.

[0043] This embodiment uses a plurality of placement components 213, each with a placement part, and each placement component 213 has a low weight, thereby making the measurement of the weight of the target object more accurate.

[0044] The top of the placement member 213 has a first guide surface, and the target object can move to the placement part under the guidance of the first guide surface.

[0045] The receiving assembly 22 includes a support base 221 and a support member 222 connected to the support base 221. The receiving portion is formed on the support member 222 and is hollowed out. In this embodiment, by hollowing out the receiving portion, particles or dust on the target object reaching the weighing mechanism 2 can fall off through the hollowed-out portion, thereby further ensuring the weighing accuracy of the weighing mechanism 2 and preventing the target object contaminated with particles or dust from being measured as a defective product due to its large weight, thus improving production efficiency.

[0046] The support member 222 also includes a plurality of protrusions extending from the inner wall of the receiving portion, so that the receiving portion forms a plurality of receiving spaces corresponding one-to-one with the placement member 213. The top of the protrusion has a second guide surface, and the target object can move to the placement portion under the guidance of the second guide surface.

[0047] The drive assembly 23 includes a cylinder 231 and a connecting rod 232 connecting the cylinder 231 and the support base 221. The connecting rod 232 is connected to the support base 1 via a connecting shaft, such that when the cylinder 231 drives one end of the connecting rod 232 to press down, the other end of the connecting rod 232 will tilt upward. Similarly, when the cylinder 231 drives one end of the connecting rod 232 to tilt upward, the other end of the connecting rod 232 will press down, thereby causing the support base 221 to move up or down, thereby causing the support member 222 to move up or down, so that the receiving assembly 22 can switch between a first position and a second position.

[0048] The connecting mechanism 3 includes a connecting track, which can transport the target object.

[0049] The gripper mechanism 4 is configured to move between the connecting mechanism 3 and the weighing mechanism 2, so that the target object moves from the connecting mechanism 3 to the weighing mechanism 2. The gripper mechanism 4 includes a first gripper 41 and a second gripper 42 arranged sequentially; the first gripper 41 is located between the connecting mechanism 3 and the weighing mechanism 2, and is adapted to grip the target object on the connecting mechanism 3 onto the weighing mechanism 2 for weighing; the second gripper 42 is located at the weighing mechanism 2 to pick up and transport the weighed target object to the transfer device 300.

[0050] The gripper mechanism 4 also includes a third gripper 43, which is located at the connecting mechanism 3 and remains in a fixed position. It is adapted to grip or release a target object that has moved onto the connecting mechanism 3, so as to keep the target object stationary or to enable the first gripper 41 to grip the target object. The third gripper 43 only opens or closes, thereby fixing or releasing the target object.

[0051] The epoxy granule weighing and sorting mechanism 200 of the molding system also includes two blocking mechanisms 6, one of which is located between the connecting mechanism 3 and the weighing mechanism 2, and the other blocking mechanism 6 is located between the weighing mechanism 2 and the transfer device 300.

[0052] Each blocking mechanism 6 includes a blocking member 63, a driving member 61, and a rotating member 62 connecting the blocking member 63 and the driving member 61. The rotating member 62 is also connected to the support base 1 via a connecting shaft. The driving member 61 drives the rotating member 62 to rotate, thereby driving the blocking member 63 to rotate, which in turn enables or blocks communication between the connecting mechanism 3 and the weighing mechanism 2, and between the weighing mechanism 2 and the transfer device 300. In this embodiment, the driving member 61 is a cylinder, a hydraulic cylinder, or a linear motor, etc.

[0053] The epoxy granule weighing and sorting mechanism 200 of the molding system also includes a detection mechanism 5, which comprises several sensors. These sensors detect the operating conditions of each station, thereby interacting with the control device to control the epoxy granule weighing and sorting mechanism 200. The control device is a conventional structure, such as a microcontroller, and will not be described in detail here.

[0054] The implementation process of the epoxy granule weighing and sorting mechanism in the molding system in this embodiment is as follows:

[0055] Initial state: The driving component pushes the receiving component to the first position, and the hollow receiving part of the support completely covers the placed component;

[0056] The gripper mechanism places the workpiece into the receiving part, and the workpiece slides into the placement part along the second guide surface of the protrusion;

[0057] The drive assembly and housing assembly descend to the second position, the weighing assembly is fully exposed, and the workpiece gravity is transmitted to the weighing detection assembly (high-precision strain gauge sensor) through the placement component → connecting component (carbon fiber rod);

[0058] After the sensor measures the weight, the drive assembly returns to the first position to prepare for the next weighing.

[0059] In summary: The epoxy granule weighing and sorting mechanism 200 of the encapsulation system in this application includes a connecting mechanism 3, a weighing mechanism 2, and a gripper mechanism 4. The connecting mechanism 3 is adapted to dock with the vibratory feeder device 100 and is configured to connect and place the target object conveyed by the vibratory feeder device 100. The weighing mechanism 2 is located on one side of the connecting mechanism 3 and can weigh the target object. The gripper mechanism 4 can move between the connecting mechanism 3 and the weighing mechanism 2 so that the target object moves from the connecting mechanism 3 to the weighing mechanism 2. This ensures that the vibration of the vibratory feeder device 100 cannot be transmitted to the weighing mechanism 2, thus not affecting the weighing accuracy of the weighing mechanism 2, and eliminating the need to stop the vibratory feeder device 100 to ensure weighing accuracy. This improves production efficiency. Furthermore, the weighing mechanism 2 includes a weighing component 21, a receiving component 22, and a drive component 23 connected to the receiving component 22. The weighing component 21 has a placement portion for placing and weighing the target object, and the receiving component 22 has a receiving portion for accommodating part of the weighing component 21. The drive component 23 drives the receiving component 22 to move between a first position and a second position. In the height direction, the first position is higher than the second position. When in the first position, the receiving portion is above or flush with the placement portion. When the drive component 23 drives the receiving component 22 from the first position to the second position, the placement portion is exposed to weigh the target object, thereby reducing the weight of the weighing component 21 while ensuring weighing accuracy.

[0060] The above is only one specific implementation of this application, and any other improvements made based on the concept of this application shall be considered within the scope of protection of this application.

Claims

1. A weighing and sorting mechanism for epoxy granules in a molding and sealing system, characterized in that, Suitable for docking with vibratory feeder devices and transfer devices, the epoxy granule weighing and sorting mechanism of the encapsulation system includes: A connecting mechanism, adapted to dock with the vibratory feeder device, is configured to dock and place the target object conveyed by the vibratory feeder device. A weighing mechanism, located on one side of the connecting mechanism, is configured to weigh the target object; A gripper mechanism is configured to move between the connecting mechanism and the weighing mechanism, so that the target object moves from the connecting mechanism to the weighing mechanism; The weighing mechanism includes a weighing component, a receiving component, and a driving component connected to the receiving component. The weighing component has a placement part for placing and weighing the target object, and the receiving component has a receiving part for receiving a portion of the weighing component. The driving component drives the receiving component to move between a first position and a second position, wherein the first position is higher than the second position in the height direction; when in the first position, the receiving portion is located above or flush with the placement portion; when the driving component drives the receiving component to move from the first position to the second position, the placement portion is exposed to weigh the target object.

2. The epoxy granule weighing and sorting mechanism for the molding system as described in claim 1, characterized in that, The receiving assembly includes a support base and a support member connected to the support base. The receiving portion is formed on the support member and is hollowed out.

3. The epoxy granule weighing and sorting mechanism for the molding system as described in claim 2, characterized in that, The weighing assembly includes a weighing detection element, a connector connected to the detection element, and a plurality of placement elements connected to the support element, wherein the placement portion is formed on the placement element; When the target object is placed on the placement part, it exerts a first force on the placement part under its own weight. The first force is transmitted to the weighing detection element through the connecting element so that the weighing detection element weighs the target object.

4. The epoxy granule weighing and sorting mechanism for the molding system as described in claim 3, characterized in that, The top of the placement component has a first guide surface, and the target object can move to the placement part under the guidance of the first guide surface.

5. The epoxy granule weighing and sorting mechanism for the molding and sealing system as described in claim 3, characterized in that, The top of the placement component is provided with a groove, which serves as the placement portion.

6. The epoxy granule weighing and sorting mechanism for the molding and sealing system as described in claim 2, characterized in that, The support member also includes a number of protrusions, which protrude from the inner wall of the receiving part to form a plurality of receiving spaces corresponding one-to-one with the placement member; The top of the protrusion has a second guide surface, and the target object can move to the placement part under the guidance of the second guide surface.

7. The epoxy granule weighing and sorting mechanism for a molding compound system as described in any one of claims 1 to 6, characterized in that, The gripper mechanism includes a first gripper and a second gripper arranged sequentially. The first gripper is located between the connecting mechanism and the weighing mechanism, and is adapted to grip the target object on the connecting mechanism onto the weighing mechanism to weigh the target object; The second gripper is located at the weighing mechanism to clamp and transport the weighed target object to the transfer device.

8. The epoxy granule weighing and sorting mechanism for the molding system as described in claim 7, characterized in that, The gripper mechanism further includes a third gripper located at the connecting mechanism and in a fixed position, adapted to grip or release the target object that has moved onto the connecting mechanism, so as to keep the target object stationary or to enable the first gripper to grip the target object.

9. The epoxy granule weighing and sorting mechanism for a molding compound system as described in any one of claims 1 to 6, characterized in that, The epoxy granule weighing and sorting mechanism of the encapsulation system also includes two blocking mechanisms, one of which is located between the connecting mechanism and the weighing mechanism, and the other of which is located between the weighing mechanism and the transfer device.

10. The epoxy granule weighing and sorting mechanism for a molding and sealing system as described in claim 9, characterized in that, Each of the blocking mechanisms includes a blocking member, a driving member, and a rotating member connecting the blocking member and the driving member. The driving member drives the rotating member to rotate, thereby driving the blocking member to rotate, which in turn enables or blocks communication between the connecting mechanism and the weighing mechanism, and between the weighing mechanism and the transfer device.

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