Plastic packaging equipment frame runner structure
By introducing a conveying mechanism, a flexible rolling assembly, and a positioning mechanism into the flow channel structure of the molding equipment frame, the problem of scraping of the multi-tube frame during track flow is solved, achieving smooth conveying and precise positioning of the frame, and improving the reliability and stability of the product.
Patent Information
- Application Number
- CN202422628140.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the semiconductor chip packaging process, the internal circuit contacts of the multi-transistor frame are designed on both sides of the frame, which makes it easy for them to scrape against the sides of the track during the flow process, causing defects.
Design a frame flow channel structure for a molding equipment, including a fixed frame, a conveying mechanism, a flexible rolling assembly, and a positioning mechanism. The frame is conveyed by a belt driven by a servo motor, and the frame is moved smoothly by the flexible rolling assembly and photoelectric sensors, and is accurately positioned by the positioning mechanism.
It reduces friction and damage, ensures the integrity of circuit contacts, lowers the failure rate, and improves the long-term reliability and delivery stability of the product.
Smart Images

Figure CN223501833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flow channel structure technology, and in particular to a flow channel structure for a plastic sealing equipment frame. Background Technology
[0002] In semiconductor automation equipment, particularly in the semiconductor chip packaging industry, frames typically employ a design where the flow path is set naturally after the cartridge is ejected. However, in the design of multi-transistor frames, the internal circuit contacts are generally located on both sides of the frame, with the substrate in the middle. This causes the heat-conducting pads at the contact edges to easily scrape against the sides of the track during flow, resulting in defects. Therefore, this invention proposes a flow path structure for a molding compound equipment frame. Utility Model Content
[0003] The purpose of this utility model is to address the problem that in the design of multi-tube frames in the background art, the internal circuit contacts are generally designed on both sides of the frame and the substrate is designed in the middle. During the flow of the track, the heat-conducting sheet at the edge of the contact is easily scraped against the sides of the track, causing adverse problems. This invention proposes a flow channel structure for a plastic encapsulation equipment frame.
[0004] The technical solution of this utility model is as follows: A frame flow channel structure for a molding equipment includes a fixed frame and multiple sets of conveying mechanisms, all of which are mounted on the frame. Each conveying mechanism includes a belt with top plates fixed to the frame on both sides, the top of the belt being higher than the top of the top plate. A multi-tube frame is mounted on the belt and the top plate, and the belt moves to transport the multi-tube frame. Multiple sets of flexible rolling assemblies are also mounted on the frame, and these assemblies press the multi-tube frame onto the belt to ensure smooth movement. A baffle is mounted on the conveying mechanism away from the input end of the multi-tube frame. A positioning mechanism is also mounted on the frame, located on the side of the baffle closest to the multi-tube frame, and is used to clamp and position the multi-tube frame.
[0005] Optionally, the conveying mechanism includes a servo motor mounted on a frame, with a first pulley fixedly connected to the output end of the servo motor, a synchronous belt fitted on the first pulley, and a second pulley also provided in the synchronous belt. The conveying mechanism also includes two sets of rotating shafts rotatably connected on the frame, with rotating wheels fixedly connected to the rotating shafts, the belt fitted on the two sets of rotating wheels, and the second pulley fixedly connected to one set of rotating shafts.
[0006] Optionally, the conveying mechanism further includes two sets of side plates fixedly connected to the opposite sides of the two sets of top plates, with the distance between the two sets of side plates being greater than the width of the multi-tube frame.
[0007] Optionally, the flexible rolling assembly includes a positioning cylinder mounted on the frame, the positioning cylinder being positioned directly above the belt, the output end of the positioning cylinder facing downward and fixedly connected to a lifting plate, multiple sets of limiting rods being slidably connected in the lifting plate, the bottom of the multiple sets of limiting rods being fixedly connected to a pressure plate, and a rubber cylinder being provided between the lifting plate and the pressure plate.
[0008] Optionally, the bottom of the pressure plate is fixedly connected to two sets of fixing blocks, and a pressure roller is rotatably connected between the two sets of fixing blocks. Multiple sets of rubber rings are fitted around the outer ring of the pressure roller.
[0009] Optionally, a photoelectric sensor is provided on the side of the lifting plate, the photoelectric sensor is located directly above the belt, and the photoelectric sensor is fixedly connected to the frame.
[0010] Optionally, the positioning mechanism includes a bidirectional cylinder mounted on the frame, the bidirectional cylinder being positioned below the conveying mechanism, and both output ends of the bidirectional cylinder being fixedly connected to a movable frame, the top of which is fixedly connected to a positioning plate.
[0011] Optionally, at the location of the positioning plate, no side plate is provided on the side of the top plate, and the positioning plate is slidably connected to the top of the top plate.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] This invention uses a side plate spacing greater than that of the multi-tube frame to prevent the multi-tube frame from touching the edge. During the inflow process, the multi-tube frame is pushed into the track by a pusher cylinder. Since the top of the belt is higher than the top of the top plate, the middle pin area of the multi-tube frame is pressed against the belt. At the same time, two sets of flexible rolling components are designed at the track entrance, and photoelectric sensors are designed next to them. After sensing that the multi-tube frame is in place, the pressure roller presses down to make the multi-tube frame press against the belt. It is conveyed forward by friction, lifted after entering, and flows backward, ensuring the smooth movement of the multi-tube frame.
[0014] Further, the positioning mechanism is set up. After the multi-tube frame reaches the end of the flow channel, the two sets of positioning plates are driven by the bidirectional cylinder to move closer to the middle, clamp the multi-tube frame for positioning and then release it, so that the overall state of the multi-tube frame is in a relatively accurate position, so as to facilitate the subsequent plate-mounting robot to grab the multi-tube frame;
[0015] In summary, this invention can reduce friction and damage, ensure the integrity of circuit contacts, reduce the failure rate, and improve the long-term reliability of the product. At the same time, it provides stable and accurate delivery and positioning of the multi-transistor frame, facilitating subsequent handling. Attached Figure Description
[0016] Figure 1 A schematic diagram of the flow channel structure of a plastic encapsulation device is provided.
[0017] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0019] Figure 4 for Figure 2 Enlarged diagram of point B in the middle.
[0020] Figure label:
[0021] 1. Conveying mechanism; 11. Servo motor; 12. First pulley; 13. Synchronous belt; 14. Second pulley; 15. Shaft; 16. Rotating wheel; 17. Belt; 18. Top plate; 19. Side plate;
[0022] 2. Multi-transistor frame;
[0023] 3. Flexible rolling assembly; 31. Positioning cylinder; 32. Lifting plate; 33. Limiting rod; 34. Pressure plate; 35. Rubber cylinder; 36. Fixing block; 37. Pressure roller; 38. Rubber ring;
[0024] 4. Positioning mechanism; 41. Two-way cylinder; 42. Moving frame; 43. Positioning plate;
[0025] 5. Baffle; 6. Photoelectric sensor. Detailed Implementation
[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Example
[0032] like Figures 1 to 4 As shown, this utility model proposes a frame flow channel structure for a plastic sealing equipment, including a fixedly mounted frame. Multiple conveying mechanisms 1 are mounted on the frame and are used to move a multi-tube frame 2. Each conveying mechanism 1 includes a belt 17 with top plates 18 fixed to the frame on both sides. The conveying mechanism 1 includes a servo motor 11 mounted on the frame, with a first pulley 12 fixedly connected to the output end of the servo motor 11. When the servo motor 11 starts, it drives the first pulley 12 to rotate. A synchronous belt 13 is fitted onto the first pulley 12, and a second pulley 14 is also provided in the synchronous belt 13. When the first pulley 12 rotates, it drives the second pulley 14 to rotate synchronously through the synchronous belt 13. The conveying mechanism 1 also includes two sets of rotating shafts 15 rotatably connected to the frame, with rotating wheels 16 fixedly connected to each shaft 15. The shafts 15 and the rotating wheels 16 rotate in their original positions. A belt 17 is fitted onto two sets of rotating pulleys 16. The rotating pulleys 16 drive the belt 17 to move when they rotate. A second pulley 14 is fixedly connected to a set of rotating shafts 15, so that when the second pulley 14 rotates, it drives the rotating shafts 15 to rotate synchronously, thereby driving the rotating pulleys 16 to rotate and driving the belt 17 to move. The conveying mechanism 1 also includes two sets of side plates 19 fixedly connected to the opposite sides of the two sets of top plates 18. The distance between the two sets of side plates 19 is greater than the width of the multi-tube frame 2. The side plates 19 are used to prevent the multi-tube frame 2 from falling off the conveying mechanism 1 when it shifts, and the larger distance also prevents the edges of the multi-tube frame 2 from rubbing against the side plates 19 during smooth movement, thus preventing defects.
[0033] Specifically, the aforementioned flow channel structure also includes a multi-tube frame 2 disposed on the belt 17 and the top plate 18. The top of the belt 17 is higher than the top of the top plate 18, so that after the multi-tube frame 2 is placed on the belt 17, the pin area in the middle of the multi-tube frame 2 is in close contact with the belt 17. When the belt 17 moves, it drives the multi-tube frame 2 to move, realizing the conveying of the multi-tube frame 2. The multi-tube frame 2 is pushed onto the belt 17 by a pusher cylinder.
[0034] Furthermore, the aforementioned flow channel structure includes multiple sets of flexible rolling components 3, which are also mounted on the frame. These flexible rolling components 3 are used to press the multi-tube frame 2 onto the belt 17, ensuring smooth movement of the multi-tube frame 2. Each flexible rolling component 3 includes a positioning cylinder 31 mounted on the frame. The positioning cylinder 31 is positioned directly above the belt 17, with its output end pointing downwards and fixedly connected to a lifting plate 32. Upon activation, the positioning cylinder 31 drives the lifting plate 32 to rise and fall. Two sets of limiting rods 33 are slidably connected to the lifting plate 32, and a pressure plate 34 is fixedly connected to the bottom of both sets of limiting rods 33. The pressure plate 34 slides smoothly below the lifting plate 32 via the two sets of limiting rods 33. A rubber cylinder 35 is positioned between the lifting plate 32 and the pressure plate 34. The rubber cylinder 35 is elastic and prevents excessive hard compression that could damage the multi-tube frame 2. Two sets of fixing blocks 36 are fixedly connected to the bottom of the pressure plate 34, and the fixing blocks 36 move synchronously with the pressure plate 34. A pressure roller 37 is rotatably connected between the two sets of fixing blocks 36, and the pressure roller 37 rotates in its original position. Multiple sets of rubber rings 38 are fitted around the outer ring of the pressure roller 37. The rubber rings 38 are in contact with the surface of the multi-tube frame 2. At the same time, the rubber rings 38 are elastic and fit tightly against the multi-tube frame 2, so that the multi-tube frame 2 is pressed tightly against the belt 17, thereby increasing the friction force of the belt 17 on the multi-tube frame 2, so that the belt 17 can drive the multi-tube frame 2 to move smoothly when it moves. A photoelectric sensor 6 is provided on the side of the lifting plate 32. The photoelectric sensor 6 is located directly above the belt 17 and is fixedly connected to the frame. The photoelectric sensor 6 is used to sense whether the multi-tube frame 2 is in position.
[0035] Furthermore, the aforementioned flow channel structure also includes a baffle 5 installed at the end of the conveying mechanism 1 away from the input of the multi-tube frame 2. The baffle 5 is used to prevent the multi-tube frame 2 from being directly conveyed out and falling. A positioning mechanism 4 is also installed on the frame. The positioning mechanism 4 is located on the side of the baffle 5 near the multi-tube frame 2. The positioning mechanism 4 is used to clamp and position the multi-tube frame 2. The positioning mechanism 4 includes a bidirectional cylinder 41 installed on the frame. The bidirectional cylinder 41 is located below the conveying mechanism 1. Both output ends of the bidirectional cylinder 41 are fixedly connected to moving frames 42. After the bidirectional cylinder 41 is started, it drives the two sets of moving frames 42 to move closer or further away synchronously. A positioning plate 43 is fixedly connected to the top of the moving frame 42. The positioning plate 43 moves synchronously with the moving frame 42. At the location of the positioning plate 43, no side plate 19 is provided on the side of the top plate 18, and the positioning plate 43 is slidably connected to the top of the top plate 18. After the multi-polarization tube frame 2 is in place, the bidirectional cylinder 41 is activated and moves the two sets of positioning plates 43 closer and then further away through the moving frame 42, positioning the multi-polarization tube frame 2 in the middle position.
[0036] In this embodiment, firstly, the multi-tube frame 2 is pushed onto the belt 17 by a pushing cylinder. After starting two sets of servo motors 11, the servo motors 11 drive the first pulley 12 to rotate. The first pulley 12 drives the second pulley 14 to rotate via the synchronous belt 13. The second pulley 14 then drives the rotating wheel 16 to rotate via the rotating shaft 15. When the rotating wheel 16 rotates, it drives the belt 17 to move, thereby moving the multi-tube frame 2. When the photoelectric sensor 6 senses the arrival of the multi-tube frame 2, the positioning cylinder 31 is activated, driving the lifting plate 32 to move downwards and causing the pressure roller 37 to press against the multi-tube frame 2. At the same time, the rubber cylinder 35 deforms and accumulates elastic force. This allows the pressure roller 37 to press firmly against the multi-tube frame 2 without damaging it. Furthermore, the rubber ring 38 prevents damage to the surface of the multi-tube frame 2. Thus, when the belt 17 moves, the multi-tube frame 2 moves smoothly while the pressure roller 37 rotates synchronously. During the movement, the sides of the multi-tube frame 2 do not contact the side plates 19. After the multi-polar transistor frame 2 moves to contact the baffle 5 and stops moving, the two output ends of the bidirectional cylinder 41 shorten and then extend, and the positioning plate 43 moves synchronously through the moving frame 42, so that the two sets of positioning plates 43 move towards the middle to clamp the multi-polar transistor frame 2, and then move away from the multi-polar transistor frame 2, so that the multi-polar transistor frame 2 is positioned in the middle position.
[0037] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A frame flow channel structure for a molding compound, comprising a fixedly mounted frame, characterized in that, Also includes: Multiple sets of conveying mechanisms (1) are installed on the frame. Each conveying mechanism (1) includes a belt (17). Both sides of the belt (17) are provided with a top plate (18) fixed on the frame. The top of the belt (17) is higher than the top of the top plate (18). The multi-tube frame (2) is set on the belt (17) and the top plate (18). When the belt (17) moves, it drives the multi-tube frame (2) to move, thereby realizing the conveying of the multi-tube frame (2). Multiple sets of flexible rolling components (3) are also installed on the frame. The flexible rolling components (3) are used to press the multi-tube frame (2) onto the belt (17) so that the movement of the multi-tube frame (2) is smooth. A baffle (5) is installed on the conveying mechanism (1) away from the input end of the multi-tube frame (2). A positioning mechanism (4) is also installed on the frame. The positioning mechanism (4) is located on the side of the baffle (5) close to the multi-tube frame (2). The positioning mechanism (4) is used to clamp and position the multi-tube frame (2).
2. The frame flow channel structure of a molding compound equipment according to claim 1, characterized in that, The conveying mechanism (1) includes a servo motor (11) mounted on a frame. The output end of the servo motor (11) is fixedly connected to a first pulley (12). A synchronous belt (13) is fitted on the first pulley (12). A second pulley (14) is also provided in the synchronous belt (13). The conveying mechanism (1) also includes two sets of rotating shafts (15) rotatably connected on the frame. Rotating wheels (16) are fixedly connected on the rotating shafts (15). The belt (17) is fitted on the two sets of rotating wheels (16). The second pulley (14) is fixedly connected to one set of rotating shafts (15).
3. The frame flow channel structure of a molding compound according to claim 2, characterized in that, The conveying mechanism (1) also includes two sets of side plates (19) that are fixedly connected to the two sets of top plates (18) on opposite sides. The distance between the two sets of side plates (19) is greater than the width of the multi-tube frame (2).
4. The frame flow channel structure of a molding compound equipment according to claim 3, characterized in that, The flexible rolling assembly (3) includes a positioning cylinder (31) mounted on the frame. The positioning cylinder (31) is positioned directly above the belt (17). The output end of the positioning cylinder (31) is downward and fixedly connected to a lifting plate (32). Multiple sets of limiting rods (33) are slidably connected in the lifting plate (32). The bottom of the multiple sets of limiting rods (33) is fixedly connected to a pressure plate (34). A rubber cylinder (35) is provided between the lifting plate (32) and the pressure plate (34).
5. The frame flow channel structure of a molding compound equipment according to claim 4, characterized in that, The bottom of the pressure plate (34) is fixedly connected to two sets of fixing blocks (36), and a pressure roller (37) is rotatably connected between the two sets of fixing blocks (36). Multiple sets of rubber rings (38) are fitted on the outer ring of the pressure roller (37).
6. The frame flow channel structure of a molding compound equipment according to claim 5, characterized in that, A photoelectric sensor (6) is provided on the side of the lifting plate (32). The photoelectric sensor (6) is located directly above the belt (17) and is fixedly connected to the frame.
7. The frame flow channel structure of a molding compound equipment according to claim 6, characterized in that, The positioning mechanism (4) includes a bidirectional cylinder (41) mounted on the frame. The bidirectional cylinder (41) is located below the conveying mechanism (1). Both output ends of the bidirectional cylinder (41) are fixedly connected to a moving frame (42). The top of the moving frame (42) is fixedly connected to a positioning plate (43).
8. The frame flow channel structure of a molding compound according to claim 7, characterized in that, At the location of the positioning plate (43), the side of the top plate (18) is not provided with a side plate (19), and the positioning plate (43) is slidably connected to the top of the top plate (18).