A conveying device for sheet resin

Abstract

This utility model discloses a conveying device for sheet resin, including a feeding mechanism, a gripping mechanism, a transfer mechanism, a cutting mechanism, an air circuit system, a standby platform, and a picking platform. The standby platform and the picking platform are located on the same horizontal plane. The bottoms of the standby platform and the picking platform, as well as the gripping mechanism, are connected to the air circuit system. The feeding mechanism is used to convey the head of the sheet resin in roll form to the standby platform. The gripping mechanism is located between the feeding mechanism and the transfer mechanism, and is used to transport the sheet resin from the standby platform to the picking platform. The cutting mechanism is used to cut the sheet resin, and the transfer mechanism is used to transport the cut sheet resin. A measuring mechanism is provided between the feeding mechanism and the picking platform to measure the thickness and width of the sheet resin. This conveying device can realize the quantitative supply, stable conveying, and accurate dispensing of sheet resin, thereby automating the sheet resin packaging operation and effectively improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of resin conveying equipment, specifically relating to a conveying device for sheet resin. Background Technology

[0002] Currently, the molding compound used in semiconductor packaging processes is primarily epoxy resin. The raw materials are generally supplied in three forms: 1. cylindrical discs; 2. irregular fine granules; 3. highly viscous liquids. In contrast to these three types, a fourth type of molding compound exists, supplied in the form of extremely thin, large-area sheets, known as sheet resin, which is typically manufactured in rolls.

[0003] Because of the chip packaging processes involving frames and substrates, the molded encapsulated form is mostly a flat shape with a small thickness and a large area. Therefore, the most significant characteristic of sheet resin is that the shape of the resin before packaging can closely approximate the actual appearance required after chip molding. This characteristic has the advantage of minimizing the reshaping and flow process of the resin during molding, thereby reducing the impact of the resin on the chip itself, increasing the filling rate of voids within the chip, further reducing molding time, and improving overall production efficiency and molding quality.

[0004] However, the industry currently primarily uses the three types of resins mentioned above. Due to their different forms, the methods for conveying and feeding them vary. Since the industry has not yet begun large-scale adoption of sheet resins, they are essentially confined to the laboratory stage. Furthermore, sheet resins themselves have poor flexibility, are prone to plastic deformation, and possess a certain degree of adhesion, making them unsuitable for handling using existing mechanical structures. This can easily damage the resin's surface shape, thus preventing the direct use of existing technologies for mass production of sheet resins. Currently, sheet resins can only be manually cut, weighed, and placed into encapsulation molding experimental equipment. This process is complex, the control of resin dosage is imprecise, and overall efficiency is low, making large-scale production impossible. Utility Model Content

[0005] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a sheet resin conveying device that can automate the packaging of sheet resin, replace manual labor to more accurately control the amount of resin used, and improve work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conveying device for sheet resin, wherein the sheet resin is initially in the form of a roll wound on a spool, the conveying device includes a feeding mechanism, a gripping mechanism, a transfer mechanism, a cutting mechanism, an air system, a standby platform, and a picking platform. The standby platform and the picking platform are located on the same horizontal plane, and the bottoms of the standby platform, the picking platform, and the gripping mechanism are all connected to the air system. The feeding mechanism is located at the end of the standby platform away from the picking platform, and is used to convey the head of the roll of sheet resin to the standby platform. The gripping mechanism and the transfer mechanism are located above the picking platform, with the gripping mechanism positioned between the feeding mechanism and the transfer mechanism. The gripping mechanism is used to transfer the sheet resin from the standby platform to the picking platform. The cutting mechanism is used to cut the sheet resin, and the transfer mechanism is used to transport the cut sheet resin. A measuring mechanism is also provided between the feeding mechanism and the picking platform, and the measuring mechanism is used to measure the thickness and width of the sheet resin.

[0008] According to some preferred embodiments of the present invention, the feeding mechanism includes a first driver and a transmission component, wherein the rotating shaft of the first driver is fixedly connected to the spool of the roll, and the first driver is used to drive the roll to rotate; the transmission component is located between the roll and the standby platform.

[0009] The transmission assembly includes a first roller, a second roller, a first gear, a second gear, a synchronous belt, a first synchronous pulley, and a second synchronous pulley. The first roller is located directly above the second roller, and the gap between the first roller and the second roller is equal to the thickness of the sheet resin. The first gear is fixedly connected to one end of the first roller and meshes with the second gear. Both the first and second synchronous pulleys are connected to the synchronous belt drive. The second synchronous pulley is fixedly connected to one end of the second roller. A connecting shaft is fixedly provided between the first synchronous pulley and the second gear.

[0010] According to some preferred embodiments of the present invention, the transmission assembly further includes a second driver, a mounting plate, a first connecting plate, and a second connecting plate. The second driver is located on the side of the mounting plate away from the sheet resin. The first connecting plate and the second connecting plate are both located on the other side of the mounting plate. The end of the connecting shaft away from the second roller shaft is fixedly connected to the mounting plate. The second gear is located between the first synchronous wheel and the second connecting plate. The first connecting plate and the second connecting plate are both fixedly connected to the mounting plate. One end of the first roller shaft passes through the first gear and is fixedly connected to the first connecting plate. One end of the second roller shaft passes through the second synchronous wheel, the second connecting plate, and the mounting plate and is fixedly connected to the rotating shaft of the second driver.

[0011] According to some preferred embodiments of this utility model, the length of the first connecting plate is less than the length of the second connecting plate, the first connecting plate is parallel to the second connecting plate, and the mounting plate has two first oblong holes penetrating its thickness direction at each end corresponding to the first connecting plate, and two second oblong holes penetrating its thickness direction at each end corresponding to the second connecting plate. The first connecting plate is connected to the mounting plate via bolt and nut assemblies and the first oblong holes, and the second connecting plate is connected to the mounting plate via bolt and nut assemblies and the second oblong holes. The arrangement of the first oblong holes with the first connecting plate and the second oblong holes with the second connecting plate facilitates the operator to adjust the distance between the first roller and the second roller according to the thickness of the sheet resin to match the thickness of the sheet resin to be conveyed.

[0012] According to some preferred embodiments of the present invention, the gripping mechanism includes a first fixed frame, a fixed block fixedly disposed at one end of the first fixed frame, a first driving component for driving the first fixed frame to move in a vertical direction, and a second driving component for driving the first fixed frame to move in a length direction parallel to the material picking platform. The fixed block has a plurality of first through holes evenly spaced along its length direction inside, and the first through holes penetrate the height direction of the fixed block.

[0013] According to some preferred embodiments of the present invention, the transfer mechanism includes a suction cup assembly, a connecting rod fixedly connected to the top of the suction cup assembly, a third driving assembly for driving the connecting rod to move in a vertical direction, and a fourth driving assembly for driving the connecting rod to move in a length direction parallel to the material picking platform. The suction cup assembly is used to adsorb the cut sheet resin on the material picking platform.

[0014] According to some preferred embodiments of the present invention, there is a gap between the ends of the standby platform and the material picking platform that are close to each other, and the length of the material picking platform is greater than the length of the standby platform; the standby platform has a plurality of first grooves opened downward from its top surface, the plurality of first grooves are arranged at intervals along the width direction of the standby platform, the first grooves are parallel to the length direction of the standby platform, and the standby platform has a plurality of second through holes opened upward from its bottom surface, the plurality of second through holes are arranged in a one-to-one correspondence with the plurality of first grooves, and one second through hole is connected to one corresponding first groove;

[0015] The material-collecting platform has multiple sets of second and third groove units formed downwards from its top surface. These second and third groove units are staggered along the width of the platform. Each set of second groove units includes multiple evenly spaced second grooves, and each set of third groove units includes multiple evenly spaced third grooves. The length of the second groove is greater than the length of the third groove. Both the second and third grooves are parallel to the length of the platform. The platform has multiple third and fourth through holes formed upwards from its bottom surface. Each third through hole corresponds to one of the second grooves, and each third through hole is connected to a corresponding second groove. Similarly, each fourth through hole corresponds to one of the third grooves, and each fourth through hole is connected to a corresponding third groove. The arrangement of these through holes and grooves on the fixing block, standby platform, and material-collecting platform, combined with the airflow system, enables a zoned adsorption and blowing operation mode for sheet resin.

[0016] According to some preferred embodiments of this utility model, the air circuit system includes a vacuum circuit, a positive pressure circuit, a pneumatic reversing valve, and multiple air nozzles. Each air nozzle is connected to the pneumatic reversing valve, which is used to switch the air nozzle's connection to either the vacuum circuit or the positive pressure circuit. Each first through hole of the fixing block is correspondingly provided with one air nozzle, each second through hole of the standby platform is correspondingly provided with one air nozzle, and each third and fourth through hole of the material handling platform is also correspondingly provided with one air nozzle. When the air nozzle is connected to the vacuum circuit, the air circuit system provides adsorption force for the sheet resin. When the air nozzle is connected to the positive pressure circuit, the air circuit system provides blowing force for the sheet resin. In some embodiments of this utility model, when the air nozzle is connected to the vacuum circuit, the sheet resin at the corresponding position can be adsorbed through the corresponding first through hole to make the sheet resin fit tightly against the fixing block, and the sheet resin at the corresponding position can be adsorbed through the second, third, or fourth through hole to make the sheet resin fit tightly against the standby platform or the material handling platform. When the air nozzle is connected to the positive pressure circuit, air can be blown onto the corresponding position of the sheet resin through the first through hole to separate the sheet resin from the fixing block. Air can also be blown onto the corresponding position of the sheet resin through the second, third, or fourth through hole to keep the sheet resin suspended and prevent it from sticking to the standby platform or material handling platform. The air circuit system of this invention can effectively prevent resin deformation or breakage when gripping, placing, and fixing sheet resin.

[0017] According to some preferred embodiments of the present invention, the cutting mechanism includes a blade, a second fixing frame, and a fifth drive assembly. The bottom of the blade is fixedly connected to one end of the second fixing frame, and the bottom of the second fixing frame is connected to the fifth drive assembly. The fifth drive assembly drives the second fixing frame to move back and forth along the width direction of the material picking platform. The blade is perpendicular to the length direction of the material picking platform. The orthographic projection of the blade on a vertical plane perpendicular to its width direction passes through the gap between the ends of the standby platform and the material picking platform in their orthographic projections on the vertical plane. By driving the second fixing frame to move back and forth through the fifth drive assembly, the blade moves back and forth in the gap between the end of the standby platform and the end of the material picking platform, thereby achieving reciprocating cutting of the sheet resin and ensuring complete cutting for smooth progress to the next process.

[0018] According to some preferred embodiments of the present invention, the measuring mechanism includes multiple first sensors and multiple second sensors. The first sensors are located between the roll material and the second sensors. Multiple first sensors are evenly spaced above and below the standby platform along the width direction of the standby platform. Two second sensors are each arranged on both sides above and below the gap between the end of the picking platform and the end of the standby platform, and the centers of all the second sensors are located on the same vertical plane. The first sensors are used to measure the thickness of the sheet resin, and the second sensors are used to measure the width of the sheet resin. In some embodiments of the present invention, both the first and second sensors are laser sensors. Because the width of the sheet resin is relatively large, the sensing range of a single sensor is limited and it is almost impossible to completely scan the entire outer contour. Therefore, the first and second sensors are set to measure the thickness and width of the sheet resin respectively. And it is ensured that the laser light emitted by the second sensor passes through the side of the sheet resin located in the gap between the standby platform and the picking platform to ensure accurate measurement of its width. In addition, the length of the conveyed sheet resin can be measured by the feed distance of the driver in the second drive assembly, thereby calculating its volume by combining the thickness, width and length of the resin to control the amount of resin conveyed.

[0019] By adopting the above technical solutions, compared with the prior art, the sheet resin conveying device of this utility model can realize the quantitative supply, stable conveying and accurate dispensing of sheet resin through the cooperation between various mechanisms, so as to automate the sheet resin packaging operation, replace manual labor and control the amount of sheet resin in a more precise way, effectively improve work efficiency, and provide a preliminary development plan for the final mass production. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the conveying device (the cutting mechanism has just cut the sheet resin and has not yet been adsorbed by the transfer mechanism) in a preferred embodiment of the present invention.

[0022] Figure 2 for Figure 1 Hide the main view behind an installation panel;

[0023] Figure 3 This is a three-dimensional structural diagram of the conveying device after the hidden part of the mechanism is shown in the preferred embodiment of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the feeding mechanism after the first driver is hidden in a preferred embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the conveying device (transfer mechanism adsorbing a cut sheet of resin) in a preferred embodiment of the present invention.

[0026] Figure 6 for Figure 5 The main view;

[0027] The attached figures are labeled as follows:

[0028] Feeding mechanism-1, first driver-11, first roller-121, second roller-122, first gear-131, second gear-132, synchronous belt-14, first synchronous pulley-151, second synchronous pulley-152, connecting shaft-16, second driver-17, mounting plate-18, first oblong hole-181, second oblong hole-182, first connecting plate-191, second connecting plate-192, gripping mechanism-2, first fixing frame-21, fixing block-22, first driver Component-23, second drive assembly-24, transfer mechanism-3, suction cup-311, fixing plate-312, connecting rod-32, third drive assembly-33, fourth drive assembly-34, cutting mechanism-4, blade-41, second fixing frame-42, fifth drive assembly-43, air nozzle-5, standby platform-6, material picking platform-7, second groove-71, third groove-72, roll material-8, sheet resin-81, roll-up-82, first sensor-91, second sensor-92. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] Reference Figures 1 to 6 This embodiment of a sheet resin conveying device includes a feeding mechanism 1, a gripping mechanism 2, a transfer mechanism 3, a cutting mechanism 4, an air circuit system, a control system, a measuring mechanism, a standby platform 6, and a picking platform 7. The standby platform 6 and the picking platform 7 are located on the same horizontal plane, and there is a gap between the ends of the standby platform 6 and the picking platform 7 that are close to each other. The feeding mechanism 1 is located at the end of the standby platform 6 away from the picking platform 7, and the feeding mechanism 1 is used to convey the head of the sheet resin 81 in the form of roll 8 to the standby platform 6. The gripping mechanism 2 and the transfer mechanism 3 are located above the picking platform 7, and the gripping mechanism 2 is located between the feeding mechanism 1 and the transfer mechanism 3. The gripping mechanism 2 is used to transport the sheet resin 81 from the standby platform 6 to the picking platform 7. The cutting mechanism 4 is used to cut the sheet resin 81, and the transfer mechanism 3 is used to transport the cut sheet resin 81. The measuring mechanism is used to measure the thickness and width of the sheet resin 81.

[0031] Furthermore, such as Figure 1 As shown, the initial state of the sheet resin 81 is a roll 8 wound on a spool 82. The roll 8 is fed, cut, and conveyed by a conveying device to achieve automated packaging of the sheet resin 81. The feeding mechanism 1 includes a first driver 11 and a conveying assembly. The shaft of the first driver 11 is fixedly connected to the spool of the spool 82 to drive the spool 82 to rotate, thereby driving the roll 8 to rotate and continuously feed material to the conveying assembly.

[0032] The transmission component is located between the roll 82 and the standby platform 6, such as Figures 1 to 4As shown, the transmission assembly includes a first roller 121, a second roller 122, a first gear 131, a second gear 132, a synchronous belt 14, a first synchronous pulley 151, and a second synchronous pulley 152. The first roller 121 is located directly above the second roller 122, and the gap between the first roller 121 and the second roller 122 is equal to the thickness of the sheet resin 81. The first gear 131 is fixedly connected to one end of the first roller 121, and the first gear 131 meshes with the second gear 132. The first synchronous pulley 151 and the second synchronous pulley 152 are both connected to the synchronous belt 14 for transmission. The second synchronous pulley 152 is fixedly connected to one end of the second roller 122, and a connecting shaft 16 is fixedly provided between the first synchronous pulley 151 and the second gear 132.

[0033] The transmission assembly also includes a second driver 17, a mounting plate 18, a first connecting plate 191, and a second connecting plate 192. There are two mounting plates 18, which are located at the two ends of the first roller shaft 121 and the second roller shaft 122, respectively. The ends of the first roller shaft 121 and the second roller shaft 122 away from the second driver 17 are rotatably connected to one of the mounting plates 18. The second driver 17 is located on the side of the other mounting plate 18 away from the sheet resin 81. The first connecting plate 191 and the second connecting plate 192 are both located on the side of the other mounting plate 18 close to the sheet resin 81. One end of the connecting shaft 16 away from the second roller shaft 122 is fixedly connected to another mounting plate 18. The second gear 132 is located between the first synchronous wheel 151 and the second connecting plate 192. Both the first connecting plate 191 and the second connecting plate 192 are fixedly connected to another mounting plate 18. One end of the first roller shaft 121 passes through the first gear 131 and is fixedly connected to the first connecting plate 191. One end of the second roller shaft 122 passes through the second synchronous wheel 152, the second connecting plate 192 and the other mounting plate 18 and is fixedly connected to the rotating shaft of the second driver 17. The rotation of the shaft of the second driver 17 drives the rotation of the second roller 122, which in turn drives the rotation of the second synchronous pulley 152, the synchronous belt 14, the first synchronous pulley 151 and the connecting shaft 16 to drive the rotation of the second gear 132. The rotation of the first gear 131 then drives the rotation of the first roller 121. When the head of the roll material 8 extends between the first roller 121 and the second roller 122, the synchronous rotation of the first roller 121 and the second roller 122 continuously feeds the material to the standby platform 6. At the same time, the linear speed of the first roller 121 and the second roller 122 is the same. The first roller 121 and the second roller 122 are in close contact with the sheet resin 81, which can clamp the sheet resin 81 with a certain pressure, ensuring that it can be smoothly conveyed to the standby platform 6, and the feed rate is constant and controllable.

[0034] Furthermore, the length of the first connecting plate 191 is less than the length of the second connecting plate 192. The first connecting plate 191 is parallel to the second connecting plate 192. Two first oblong holes 181, penetrating the thickness direction, are respectively opened on one mounting plate 18 near the second driver 17, corresponding to both ends of the first connecting plate 191. Two second oblong holes 182, penetrating the thickness direction, are respectively opened on one mounting plate 18 near the second driver 17, corresponding to both ends of the second connecting plate 192. The first connecting plate 191 is connected to the mounting plate 18 via bolt and nut assemblies and the first oblong holes 181. The second connecting plate 192 is also connected to the mounting plate 18 via bolt and nut assemblies and the second oblong holes 182. In this embodiment, the arrangement of the first oblong holes 181 and the first connecting plate 191, and the second oblong holes 182 and the second connecting plate 192, facilitates the operator to adjust the distance between the first roller shaft 121 and the second roller shaft 122 according to the thickness of the sheet resin 81, so that it matches the thickness of the sheet resin 81 to be conveyed.

[0035] Furthermore, the measuring mechanism is electrically connected to the control system, such as... Figure 1 and Figure 2 As shown, the measuring mechanism includes multiple first sensors 91 and multiple second sensors 92. The first sensors 91 are located between the roll material 8 and the second sensors 92. In this embodiment, both the first sensors 91 and the second sensors 92 are preferably laser sensors. Three first sensors 91 are evenly spaced above and below the standby platform 6 along the width direction of the standby platform 6. Two second sensors 92 are each arranged on both the upper and lower sides of the gap between the end of the material picking platform 7 and the end of the standby platform 6. The laser light emitted by the second sensors 92 passes through the side of the sheet resin 81 located in the gap between the standby platform 6 and the material picking platform 7. The centers of all the second sensors 92 are located on the same vertical plane. The first sensor 91 measures the thickness of the sheet resin 81. When the resin is stationary on the standby platform 6, multiple opposing first sensors 91 detect the resin thickness at multiple points on the same cross-section to calculate the thickness of a single cross-section. During the movement of the sheet resin 81 by the gripping mechanism 2, the thickness of different cross-sections of the passing sheet resin 81 is detected at a certain sampling frequency to estimate the overall thickness. The second sensor 92 measures the width of the sheet resin 81. All second sensors 92 are located at the edges of the sheet resin 81. When the resin is stationary on the standby platform 6, multiple opposing second sensors 92 detect the resin edge positions to estimate the width of the passed resin cross-section. Similarly, during the movement of the sheet resin 81 by the gripping mechanism 2, the width of different cross-sections of the passing resin is detected at a certain sampling frequency to estimate the overall width.

[0036] Furthermore, in this embodiment, the bottoms of the standby platform 6 and the material handling platform 7, as well as the gripping mechanism 2, are all connected to the air circuit system. The air circuit system includes a vacuum circuit, a positive pressure circuit, an air source (not shown), a vacuum generator (not shown), a pneumatic reversing valve (not shown), and multiple air nozzles 5. The vacuum generator is located in the vacuum circuit and generates negative pressure using the airflow provided by the air source. Each air nozzle 5 is connected to a pneumatic reversing valve, which is used to switch the air nozzle 5 to be connected to the vacuum circuit or the positive pressure circuit. Both the standby platform 6 and the material handling platform 7 use the air circuit system to perform different operations by adsorbing and blowing the sheet resin 81 located above them. When the air nozzle 5 is connected to the vacuum circuit, the air circuit system is used to provide adsorption force for the sheet resin 81; when the air nozzle 5 is connected to the positive pressure circuit, the air circuit system is used to provide blowing force for the sheet resin 81. Furthermore, the length of the picking platform 7 is greater than the length of the standby platform 6. This is because the standby platform 6 is only a transition platform for transferring the sheet resin 81 from the feeding mechanism 1 to the picking mechanism. The cut sheet resin 81 is mainly transported on the picking platform 7.

[0037] Specifically, the standby platform 6 has multiple first grooves extending downwards from its top surface. These first grooves are spaced apart along the width of the standby platform 6 and are parallel to its length (the length of the standby platform 6 is the same as the length of the material handling platform 7). The standby platform 6 has multiple second through holes extending upwards from its bottom surface. These second through holes correspond one-to-one with the first grooves, and each second through hole is connected to a corresponding first groove. Each second through hole of the standby platform 6 is equipped with an air nozzle 5 to connect to a vacuum circuit or a positive pressure circuit.

[0038] like Figure 1 and Figure 5As shown, the material handling platform 7 has multiple sets of second and third groove units formed downwards from its top surface. These second and third groove units are arranged alternately along the width of the material handling platform 7, i.e., alternating sets of second and third groove units along the width of the platform. Each set of second groove units includes multiple evenly spaced second grooves 71, and each set of third groove units includes multiple evenly spaced third grooves 72. The length of the second grooves 71 is greater than the length of the third grooves 72. Both the second and third grooves 71 are parallel to the length of the material handling platform 7. The material handling platform 7 has multiple third and fourth through holes formed upwards from its bottom surface. Each third through hole corresponds to one of the second grooves 71, and each third through hole is connected to a corresponding second groove 71. Similarly, each fourth through hole corresponds to one of the third grooves 72, and each fourth through hole is connected to a corresponding third groove 72. Each third through hole is located in the middle of a second groove 71, and each fourth through hole is located in the middle of a third groove 72. Each of the third and fourth through holes of the material handling platform 7 is also equipped with an air nozzle 5 to connect to the vacuum circuit or positive pressure circuit.

[0039] The through holes and grooves on the standby platform 6 and the material handling platform 7, combined with the air circuit system, allow for the switching between the vacuum circuit and the positive pressure circuit of the air circuit system. This enables a zoned adsorption and blowing operation mode for the sheet resin 81, and the adsorption and blowing range can be adjusted according to the width of the sheet resin 81. Specifically, the switching method between the vacuum circuit and the positive pressure circuit of the air circuit system is as follows: when the air nozzle 5 needs to adsorb the sheet resin 81, the pneumatic reversing valve is adjusted to connect the air nozzle 5 to the vacuum circuit, and a vacuum is generated using a vacuum generator; when adsorption is not needed, the vacuum is briefly broken, and then the pneumatic reversing valve is used again to connect the air nozzle 5 to the positive pressure circuit. At this time, adjusting the air flow rate achieves the purpose of blowing the sheet resin 81.

[0040] Furthermore, such as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the gripping mechanism 2 includes a first fixed frame 21, a fixed block 22 fixedly disposed at one end of the first fixed frame 21, a first driving component 23 for driving the first fixed frame 21 to move vertically, and a second driving component 24 for driving the first fixed frame 21 to move parallel to the length direction of the material handling platform 7. The fixed block 22 has a plurality of first through holes evenly spaced along its length, extending through the height direction of the fixed block 22. Each first through hole in the fixed block 22 is correspondingly provided with an air nozzle 5 to connect to a vacuum circuit or a positive pressure circuit, thereby realizing the adsorption and separation of the sheet resin 81. When the gripping mechanism 2 picks up the sheet resin 81 through the fixing block 22 and the air passage system, the first adsorption component drives the sheet resin 81 upward a short distance to ensure that the lower surface of the resin does not contact the standby platform 6 and the picking platform 7 below during movement. Then, the second drive component 24 drives the sheet resin 81 from the top of the standby platform 6 to the top of the picking platform 7. At the same time, the feeding mechanism 1 also operates synchronously to prevent the resin from being overstretched or relaxed. Combining the feed distance of the second drive component 24 and the thickness and width of the resin measured by the measuring mechanism, the software algorithm finally calculates the actual volume of resin transported. When the transported volume reaches the required set value, the feeding mechanism 1 stops supplying, the second drive mechanism stops operating, and the sheet resin 81 enters the cutting process.

[0041] Specifically, the cutting mechanism 4 includes a blade 41, a second fixing frame 42, and a fifth drive assembly 43. The bottom of the blade 41 is fixedly connected to one end of the second fixing frame 42, and the bottom of the second fixing frame 42 is connected to the fifth drive assembly 43. The fifth drive assembly 43 is used to drive the second fixing frame 42 to move back and forth along the width direction of the picking platform 7, thereby driving the blade 41 to move back and forth. The blade 41 is perpendicular to the length direction of the picking platform 7, and the orthographic projection of the blade 41 on a vertical plane perpendicular to its width direction passes through the gap between the ends of the standby platform 6 and the picking platform 7 in the orthographic projection on the vertical plane. This ensures that when the fifth drive assembly 43 drives the second fixing frame 42 to move back and forth, it can drive the blade 41 to move back and forth in the gap between the end of the standby platform 6 and the end of the picking platform 7, so as to realize the reciprocating cutting of the sheet resin 81 and ensure that the resin is completely cut off so as to proceed smoothly to the next process.

[0042] The transfer mechanism 3 includes a suction cup assembly, a connecting rod 32 fixedly connected to the top of the suction cup assembly, a third drive assembly 33 for driving the connecting rod 32 to move vertically, and a fourth drive assembly 34 for driving the connecting rod 32 to move parallel to the length of the material handling platform 7. The suction cup assembly is used to adsorb the cut sheet resin 81 on the material handling platform 7. The suction cup assembly includes a fixing plate 312 and two suction cups 311 fixedly connected to the bottom surface of the fixing plate 312. The top surface of the fixing plate 312 is fixedly connected to the bottom of the connecting rod 32. In this embodiment, the suction cups 311 are preferably non-contact suction cups. When the gripping mechanism 2 transports the resin to the picking platform 7, the transfer mechanism 3 will avoid it, and the third drive component 33 will drive the suction cup assembly to move upward a certain distance. A collection container (not shown) is also provided behind the picking platform 7. The cut resin will gradually move along the length of the picking platform 7 under the drive of the fourth drive component 34 of the transfer mechanism 3 until it reaches the collection container. The suction cup 311 will release the resin it has adsorbed so that it falls into the collection container, thus completing the quantitative transfer process of the sheet resin 81.

[0043] In this embodiment, during the conveying of sheet resin 81, in the initial feeding stage, the head of the roll 8 conveyed from the feeding mechanism 1 is adsorbed onto the upper surface of the standby platform 6, waiting for the gripping mechanism 2 to grip it. Under the driving action of the second driving component 24, the gripping mechanism 2 gradually approaches the standby platform 6. When the gripping mechanism 2 moves into position, the standby platform 6 switches from adsorbing resin to blowing resin through the air passage system, causing the sheet resin 81 to detach from the surface of the standby platform 6 and be in a suspended state, which helps to reduce the friction during its movement. At the same time, the bottom surface of the first through hole in the fixing block 22 of the gripping mechanism 2 provides adsorption force to the resin through the air passage system, so that the resin can adhere tightly to the lower surface of the fixing block 22. After the gripping mechanism 2 adsorbs the resin, it will be lifted a short distance under the action of the first driving component 23 to ensure that the bottom surface of the resin does not contact the standby platform 6 and the picking platform 7 below during the movement. As the gripping mechanism 2 begins to move the resin towards the picking platform 7, the feeding mechanism 1 also operates synchronously. During the movement, the amount of resin moving forward can be calculated based on the measurement of the resin thickness and width by the measuring mechanism and the monitoring of the feed distance of the driver in the second drive assembly 24. When the amount of resin reaches the target value, the second drive assembly 24 stops moving, and the resin no longer moves. The gripping mechanism 2 is positioned above the picking platform 7 and descends a short distance under the drive of the first drive assembly 23 to gently press the resin onto the surface of the picking platform 7. Subsequently, both the standby platform 6 and the picking platform 7 simultaneously provide adsorption force to the resin through the air system. The bottom surface of the fixing block 22 of the gripping mechanism 2 is converted into a blowing force through the air system to ensure that the resin can be flatly attached to the surfaces of the standby platform 6 and the picking platform 7, awaiting cutting. Figure 1 and Figure 2 As shown.

[0044] After the cutting mechanism 4 cuts the resin, the third drive component 33 in the transfer mechanism 3 will drive the suction cup assembly to move upward a certain distance. Then, under the action of the fourth drive component 34, it will move the suction cup assembly to directly above the cut resin. Then, under the action of the third drive component 33, it will drive the suction cup assembly to slightly lower to adjust the distance between the two suction cups 311 and the resin. Subsequently, the material picking platform 7 connects to atmospheric pressure through the air nozzle 5 to break the vacuum negative pressure and close the adsorption. At this time, the transfer mechanism 3 uses non-contact suction cups to pick up the sheet resin 81, and then, under the driving action of the fourth drive component 34, it transports the resin to the collection container, such as... Figure 5 and Figure 6 As shown.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A conveying device for sheet resin, wherein the sheet resin is initially in the form of a roll wound on a spool, characterized in that, The device includes a feeding mechanism, a gripping mechanism, a transfer mechanism, a cutting mechanism, an air system, a standby platform, and a picking platform. The standby platform and the picking platform are located on the same horizontal plane. The bottoms of the standby platform, the picking platform, and the gripping mechanism are all connected to the air system. The feeding mechanism is located at the end of the standby platform away from the picking platform and is used to convey the head of the sheet resin in roll form to the standby platform. The gripping mechanism and the transfer mechanism are located above the picking platform, with the gripping mechanism positioned between the feeding mechanism and the transfer mechanism. The gripping mechanism is used to move the sheet resin from the standby platform to the picking platform. The cutting mechanism is used to cut the sheet resin, and the transfer mechanism is used to transport the cut sheet resin. A measuring mechanism is also provided between the feeding mechanism and the picking platform to measure the thickness and width of the sheet resin.

2. The resin sheet conveying apparatus according to claim 1, wherein The feeding mechanism includes a first driver and a transmission component. The rotating shaft of the first driver is fixedly connected to the spool of the drum, and the first driver is used to drive the drum to rotate. The transmission component is located between the drum and the standby platform. The transmission assembly includes a first roller, a second roller, a first gear, a second gear, a synchronous belt, a first synchronous pulley, and a second synchronous pulley. The first roller is located directly above the second roller, and the gap between the first roller and the second roller is equal to the thickness of the sheet resin. The first gear is fixedly connected to one end of the first roller and meshes with the second gear. Both the first and second synchronous pulleys are connected to the synchronous belt drive. The second synchronous pulley is fixedly connected to one end of the second roller. A connecting shaft is fixedly provided between the first synchronous pulley and the second gear.

3. The resin sheet conveying apparatus according to claim 2, wherein The transmission assembly further includes a second driver, a mounting plate, a first connecting plate, and a second connecting plate. The second driver is located on the side of the mounting plate away from the sheet resin. The first and second connecting plates are both located on the other side of the mounting plate. The end of the connecting shaft away from the second roller shaft is fixedly connected to the mounting plate. The second gear is located between the first synchronous pulley and the second connecting plate. The first and second connecting plates are both fixedly connected to the mounting plate. One end of the first roller shaft passes through the first gear and is fixedly connected to the first connecting plate. One end of the second roller shaft passes through the second synchronous pulley, the second connecting plate, and the mounting plate and is fixedly connected to the rotating shaft of the second driver.

4. The conveying device for sheet resin according to claim 3, characterized in that, The length of the first connecting plate is less than the length of the second connecting plate. The first connecting plate is parallel to the second connecting plate. The mounting plate has two first oblong holes that penetrate its thickness direction at both ends corresponding to the first connecting plate. The mounting plate has two second oblong holes that penetrate its thickness direction at both ends corresponding to the second connecting plate. The first connecting plate is connected to the mounting plate through bolt and nut assemblies and the first oblong holes. The second connecting plate is connected to the mounting plate through bolt and nut assemblies and the second oblong holes.

5. The conveying device for sheet resin according to claim 1, characterized in that, The gripping mechanism includes a first fixed frame, a fixed block fixedly disposed at one end of the first fixed frame, a first driving component for driving the first fixed frame to move in a vertical direction, and a second driving component for driving the first fixed frame to move in a length direction parallel to the material picking platform. The fixed block has a plurality of first through holes evenly spaced along its length direction inside, and the first through holes penetrate through the height direction of the fixed block.

6. The conveying device for sheet resin according to claim 5, characterized in that, The transfer mechanism includes a suction cup assembly, a connecting rod fixedly connected to the top of the suction cup assembly, a third drive assembly for driving the connecting rod to move in a vertical direction, and a fourth drive assembly for driving the connecting rod to move in a length direction parallel to the material picking platform. The suction cup assembly is used to adsorb the cut sheet resin on the material picking platform.

7. The conveying device for sheet resin according to claim 6, characterized in that, There is a gap between the ends of the standby platform and the material picking platform that are close to each other, and the length of the material picking platform is greater than the length of the standby platform; the standby platform has a plurality of first grooves opened downward from its top surface, and the plurality of first grooves are arranged at intervals along the width direction of the standby platform. The first grooves are parallel to the length direction of the standby platform. The standby platform has a plurality of second through holes opened upward from its bottom surface, and the plurality of second through holes are arranged one-to-one with the plurality of first grooves. One second through hole is connected to one corresponding first groove. The material handling platform has multiple sets of second and third groove units formed downwards from its top surface. The second and third groove units are staggered along the width direction of the material handling platform. Each set of second groove units includes multiple evenly spaced second grooves, and each set of third groove units includes multiple evenly spaced third grooves. The length of the second groove is greater than the length of the third groove. Both the second and third grooves are parallel to the length direction of the material handling platform. The material handling platform has multiple third and fourth through holes formed upwards from its bottom surface. The multiple third through holes are configured one-to-one with the multiple second grooves, and one third through hole is connected to one corresponding second groove. The multiple fourth through holes are configured one-to-one with the multiple third grooves, and one fourth through hole is connected to one corresponding third groove.

8. The conveying device for sheet resin according to claim 7, characterized in that, The pneumatic system includes a vacuum circuit, a positive pressure circuit, a pneumatic reversing valve, and multiple air nozzles. Each air nozzle is connected to the pneumatic reversing valve, which is used to switch the air nozzle between the vacuum circuit and the positive pressure circuit. Each first through hole of the fixing block is provided with one air nozzle, each second through hole of the standby platform is provided with one air nozzle, and each third and fourth through hole of the material handling platform is also provided with one air nozzle. When the air nozzle is connected to the vacuum circuit, the pneumatic system is used to provide adsorption force for the sheet resin; when the air nozzle is connected to the positive pressure circuit, the pneumatic system is used to provide blowing force for the sheet resin.

9. The conveying device for sheet resin according to claim 7, characterized in that, The cutting mechanism includes a blade, a second fixing frame, and a fifth drive assembly. The bottom of the blade is fixedly connected to one end of the second fixing frame, and the bottom of the second fixing frame is connected to the fifth drive assembly. The fifth drive assembly is used to drive the second fixing frame to move back and forth along the width direction of the picking platform. The blade is perpendicular to the length direction of the picking platform. The orthographic projection of the blade on a vertical plane perpendicular to its width direction passes through the gap between the ends of the standby platform and the picking platform in their orthographic projections on the vertical plane.

10. The conveying device for sheet resin according to claim 7, characterized in that, The measuring mechanism includes multiple first sensors and multiple second sensors. The first sensors are located between the roll material and the second sensors. Multiple first sensors are evenly spaced above and below the standby platform along the width direction of the standby platform. Two second sensors are each arranged on both the upper and lower sides of the gap between the end of the material picking platform and the end of the standby platform. The centers of all the second sensors are located on the same vertical plane. The first sensors are used to measure the thickness of the sheet resin, and the second sensors are used to measure the width of the sheet resin.

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