A feeding and discharging device and method for card-to-injection-molded rubber rings

Abstract

The application discloses a feeding and discharging device and method for card-to injection molding rubber rings, and relates to the field of card-to production and processing. The feeding and discharging device comprises a device platform, a feeding mechanism, an injection mold and a multi-axis manipulator. The feeding mechanism comprises a spider manipulator and a positioning jig. The positioning jig is provided with card-to positioning grooves in a matrix distribution. The spider manipulator is used to pick up semi-finished card-to and place the card-to into the card-to positioning grooves of the positioning jig. The multi-axis manipulator is fixedly provided with a mounting frame. The mounting frame is provided with two groups of taking and placing jigs, a cleaning structure and a breaking structure. The taking and placing jigs are used to take and place card-to. The cleaning structure is used to clean the injection mold. The breaking structure is used to break the water column of the card-to after injection molding. The application adopts modular design to simplify the mechanism, reduce the number of components, and lower the manufacturing and maintenance costs. The feeding and discharging process is optimized, the process beat is shortened, the continuous operation capacity and the overall automation level are improved, and the card-to production efficiency and the yield are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of cassette manufacturing and processing technology, and in particular to a loading and unloading device and method for cassette injection molding rings. Background Technology

[0002] As smartphones evolve towards waterproofing, dustproofing, and thinner designs, SIM / TF card trays are increasingly adopting liquid silicone (LSR) injection molding, where a sealing silicone ring is injection-molded around the outer edge of the metal tray to enhance the overall waterproof and sealing performance. These trays are typically thin and lightweight with complex shapes, requiring extremely high precision in handling, positioning, and assembly.

[0003] The semi-finished card tray needs to be transferred to the mold of the liquid silicone injection molding machine for injection. After the silicone sealing ring on the card tray is formed, it is removed. In the existing process, the loading and unloading operations are usually carried out manually or semi-automatically, which is inefficient, has high labor costs, and low positioning accuracy.

[0004] Patent application CN201810360601.1 discloses an automated production equipment for card trays, including a card tray semi-finished product feeding device for positioning and adjusting the posture of the card tray semi-finished products. The card tray semi-finished product feeding device includes a vibratory feeder assembly for discharging the card tray semi-finished products in a preset posture, a conveying mechanism for conveying the card tray semi-finished products discharged from the vibratory feeder assembly, and a storage tray for storing the card tray semi-finished products on the conveying mechanism. The conveying mechanism is located between the vibratory feeder assembly and the storage tray. A feeding device includes a picking mechanism for grabbing the card tray semi-finished products on the storage tray and a transmission mechanism for driving the picking mechanism to rotate and move. The transmission mechanism and the picking mechanism are connected. A card tray finished product picking device includes a card tray clamping mechanism for clamping card trays and a sprue clamping mechanism for clamping cross-shaped sprue nozzles with transverse and longitudinal portions. The card tray clamping mechanism and the sprue clamping mechanism are spaced apart. This card tray production equipment uses a material handling mechanism and transmission structure to pick up card trays and feed them into the injection mold, and then unloads them through a card tray clamping mechanism. Specifically, the material handling mechanism uses suction cups to pick up semi-finished card trays for loading, and then multiple grippers in the card tray clamping mechanism pick up the finished card trays and sprue. While this type of equipment can achieve automated processing, it employs multiple unit structures, including a vibratory feeder assembly, dual conveyor channels, a transfer mechanism, a positioning mechanism, a multi-stage drive structure, a suction cup loading mechanism, and a gripper picking mechanism. This complex structure with numerous parts requires high-precision assembly and control for each unit, resulting in high manufacturing and maintenance costs, difficult system debugging, and cumbersome multi-stage feeding, transfer, and positioning processes, leading to extended cycle times and limited improvement in card tray processing efficiency. Therefore, this invention discloses a loading and unloading device and method for card tray injection molded rubber rings, solving the above problems. Summary of the Invention

[0005] Based on this, it is necessary to provide a loading and unloading device and method for injection molding rings for card trays, which addresses the above-mentioned technical problems. The modular design simplifies the mechanism, reduces the number of parts, and lowers manufacturing and maintenance costs. It integrates feeding, loading, and unloading into a single action, optimizes the loading and unloading process, shortens the cycle time, improves continuous operation capability and overall automation level, and significantly improves card tray production efficiency and yield.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A loading and unloading device for a cartridge injection molding ring, comprising:

[0008] Device platform;

[0009] The feeding mechanism includes a spider robot and a positioning fixture. The positioning fixture is provided with a matrix of tray positioning slots. The spider robot grabs the semi-finished product tray and places it into the tray positioning slot of the positioning fixture.

[0010] The injection mold is mounted on the injection molding machine and has injection grooves for positioning and placing the card tray. The distribution of the injection grooves is consistent with the distribution of the card tray positioning grooves on the positioning fixture.

[0011] A multi-axis robotic arm is fixed with a mounting frame. The mounting frame is equipped with two sets of material handling fixtures, a cleaning structure, and a breaking structure. The material handling fixtures are used to remove the card tray from the positioning fixture and / or the injection mold. The cleaning structure is used to clean the injection mold. The breaking structure is used to break off the sprue column of the card tray after injection molding.

[0012] As a preferred embodiment of the loading and unloading device for injection molding rings provided by the present invention, the feeding mechanism further includes a frame, the spider robot is mounted on the frame, the frame is provided with a vibrating tray assembly below the spider robot, and a feeding box is provided on one side of the top of the vibrating tray assembly. The semi-finished card tray in the feeding box flows into the top of the vibrating tray assembly, and the spider robot grabs the semi-finished card tray and places it into the card tray positioning groove of the positioning fixture.

[0013] As a preferred embodiment of the loading and unloading device for the injection molding ring of the card tray provided by the present invention, the feeding mechanism further includes a linear guide rail module embedded in and installed on the device platform, the positioning fixture is installed on the linear guide rail module, the positioning fixture includes a first base frame, a first top plate is fixed on the first base frame, the card tray positioning groove is disposed on the top surface of the first top plate, a first push plate driven by a first cylinder is provided below the first top plate, a plurality of first top posts are provided on the first push plate, the first top posts correspond one-to-one with the card tray positioning groove, and a first positioning post and a first magnet are provided on the bottom surface of the card tray positioning groove.

[0014] As a preferred embodiment of the loading and unloading device for the injection molding ring of the card holder provided by the present invention, the structure of the material handling fixture is similar to that of the positioning fixture, and includes a second base frame, a second top plate, a card holder loading and unloading slot, a second cylinder, a second push plate, a second top column, a second positioning column and a second magnet.

[0015] In a preferred embodiment of the loading and unloading device for the injection molding ring provided by the present invention, a set of the material handling fixtures is provided with a third push plate between the second push plate and the second base frame. The third push plate is connected to the second push plate by a first spring, and the third push plate is connected to the second cylinder.

[0016] In a preferred embodiment of the loading and unloading device for the injection molding ring provided by the present invention, the second base frame of another set of the material handling fixture is slidably connected to the second top plate through a stepped cylinder, and a second spring fixedly connected to the second top plate is sleeved on the outer side of the stepped cylinder.

[0017] In a preferred embodiment of the loading and unloading device for the injection molding ring of the cardot provided by the present invention, the top surface of the first top plate is provided with a matrix-distributed alignment groove, and the surface of the second top plate is provided with alignment posts that match the alignment groove.

[0018] As a preferred embodiment of the loading and unloading device for the injection molding ring of the card holder provided by the present invention, the cleaning structure includes a cleaning frame, the cleaning frame is fixedly connected to the mounting frame, a cleaning motor is installed on the cleaning frame, a cleaning brush is drivenly connected to the output end of the cleaning motor, and an air knife assembly is fixed on the cleaning frame.

[0019] As a preferred embodiment of the loading and unloading device for the injection molding ring of the present invention, the breaking structure includes a breaking frame, on which at least two sets of finger cylinders are installed, and two broken fingers are fixedly installed at the output end of the finger cylinders.

[0020] A method for loading and unloading a card tray, which uses the aforementioned loading and unloading device for card tray injection rings, includes the following steps:

[0021] 1) The spider robotic arm picks up the semi-finished card tray and places it into the card tray positioning slot of the positioning fixture until all the card tray positioning slots on the positioning fixture are filled with semi-finished card trays.

[0022] 2) The multi-axis robot arm drives one set of pick-and-place fixtures to move onto the positioning fixture, and the pick-and-place fixtures take out the semi-finished product trays from the positioning fixture;

[0023] 3) The structure is broken off from the sprue column after injection molding by breaking off the clamp on the injection mold; another set of material handling components on the multi-axis robot arm removes the clamp on the injection mold.

[0024] 4) The cleaning structure cleans the surface of the injection mold. After cleaning, the material handling component holding the semi-finished product tray puts the semi-finished product tray into the injection groove of the injection mold. The injection molding machine performs silicone injection on the semi-finished product tray. At the same time as the injection molding machine is injecting, the multi-axis robot arm drives the material handling component to put the finished product tray into the finished product box.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides a loading and unloading device and method for injection-molded card trays. A spider-like robotic arm picks up a semi-finished card tray and places it into the card tray positioning groove of a positioning fixture. After the sprue column of the card tray is broken off by a breaking structure, a set of pick-and-place fixtures on the multi-axis robotic arm removes the injection-molded card tray from the injection mold. A cleaning structure cleans the injection mold, ensuring the injection quality of the card tray. Another set of pick-and-place fixtures transfers the semi-finished card tray from the positioning groove into the injection mold for injection molding. This cycle continues until the semi-finished card tray is fully injection-molded. The modular design simplifies the mechanism, reduces the number of parts, and lowers manufacturing and maintenance costs. It integrates feeding, loading, and unloading into a single action, optimizing the loading and unloading process, shortening the cycle time, improving continuous operation capability and overall automation level, and significantly improving card tray production efficiency and yield. Attached Figure Description

[0027] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 A three-dimensional layout diagram of the overall structure of the loading and unloading device for the injection molding ring of the card tray provided by the present invention;

[0029] Figure 2 A schematic diagram of the overall structural plan layout of the loading and unloading device for the injection molding ring of the cardioid provided by the present invention;

[0030] Figure 3 A three-dimensional schematic diagram of the overall structure of the loading and unloading device for the injection molding ring of the card tray provided by the present invention;

[0031] Figure 4 A three-dimensional schematic diagram of the loading and unloading structure in the loading and unloading device for the injection molding ring of the card holder provided by the present invention;

[0032] Figure 5 A schematic diagram of a spider robot handling device for loading and unloading injection rings provided by the present invention.

[0033] Figure 6 A schematic diagram showing the connection between the positioning fixture and the linear guide module in the loading and unloading device for the injection molding ring of the card holder provided by the present invention;

[0034] Figure 7 A schematic diagram of the positioning fixture in the loading and unloading device for the injection molding ring of the cardioid provided by the present invention;

[0035] Figure 8 A three-dimensional schematic diagram of the cleaning structure and the breaking structure in the loading and unloading device for the injection molding ring of the card tray provided by the present invention;

[0036] Figure 9 A schematic diagram of the material handling fixture in the loading and unloading device for the injection molding ring of the card tray provided by the present invention;

[0037] Figure 10 This is a schematic diagram of the second top plate of the material handling fixture in the loading and unloading device for the injection molding ring of the card holder provided by the present invention.

[0038] The markings in the diagram are explained as follows:

[0039] 1. Device platform; 11. Chassis; 12. Human-machine interface screen; 13. Finished product box; 2. Feeding mechanism; 21. Spider robot; 22. Positioning fixture; 221. First base frame; 222. First top plate; 223. Card tray positioning groove; 224. First cylinder; 225. First push plate; 226. First top column; 227. First positioning column; 228. First magnet; 229. Alignment groove; 23. Frame; 24. Vibrating pallet assembly; 25. Feeding box; 26. Linear guide module; 3. Injection mold; 31. Injection tank; 4. Multi-axis robot; 41. Mounting frame; 42. Material handling fixture; 4 21. Second base frame; 422. Second top plate; 423. Card holder slot; 424. Second cylinder; 425. Second push plate; 426. Second top column; 427. Second positioning column; 428. Second magnet; 429. Third push plate; 4210. First spring; 4211. Stepped cylinder; 4212. Second spring; 4213. Alignment column; 43. Sweeping structure; 431. Sweeping frame; 432. Sweeping motor; 433. Sweeping brush; 434. Air knife assembly; 44. Break-off structure; 441. Break-off frame; 442. Finger cylinder; 443. Break-off finger; 5. Injection molding machine; 6. Card holder. Detailed Implementation

[0040] 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 of the present invention. 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 scope of protection of the present invention.

[0041] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Example 1

[0045] Please refer to Figures 1-4A loading and unloading device for injection molded card holders is provided, comprising a device platform 1, a feeding mechanism 2, an injection mold 3, and a multi-axis robot 4. A housing 11 is fixed to the bottom of the device platform 1, housing the electrical components and PLC control system of the device. A human-machine interface screen 12 is provided on one side of the housing 11, and the PLC control system is electrically connected to the human-machine interface screen 12. The human-machine interface screen 12 is used to monitor and control the automatic loading and unloading of the card holders 6. The feeding mechanism 2 is fixed to one end of the device platform 1, and includes a spider robot 21 and a positioning fixture 22. The positioning fixture 22 has matrix-distributed card holder positioning slots 223. The spider robot 21 is fixed to a frame 23, which is used for automated control of the spider robot 21. A vibration support is provided below the spider robot 21. The vibrating tray assembly 24 has a feeding box 25 on one side of its top. The outlet of the feeding box 25 is located above the vibrating tray assembly 24. The semi-finished product trays 6 in the feeding box 25 flow into the top of the vibrating tray assembly 24. The vibrating tray assembly 24 vibrates the semi-finished product trays 6 on it, causing the semi-finished product trays 6 to be spaced apart from each other. The tray component on the top of the vibrating tray assembly 24 is made of transparent material. The camera installed inside can take pictures and detect the semi-finished product trays 6 on the tray component in real time. At the same time, the image sensor on the spider robot 21 positions the semi-finished product trays 6 to be gripped. The spider robot 21 grabs the semi-finished product trays 6 and places them into the tray positioning groove 223 of the positioning fixture 22. A baffle is slidably inserted at the outlet of the feeding box 25 to control the output of the semi-finished product trays 6. An injection molding machine 5 is set on each side of the device platform 1. The injection molding machine 5 is equipped with an injection mold 3, which is a lower mold. The injection mold 3 is equipped with an injection groove 31 for positioning and placing the card tray 6. The distribution of the injection groove 31 is consistent with the distribution of the card tray positioning groove 223 on the positioning fixture. The injection groove 31 positions and holds the semi-finished card tray 6. After the upper mold is covered, the injection molding machine 5 injects silicone to form a silicone ring on the card tray 6, thereby molding the semi-finished card tray 6 into a finished card tray 6.

[0046] Please refer to Figure 3 , Figure 4At the other end of the device platform 1, a multi-axis robot arm 4 is provided. In this embodiment, the multi-axis robot arm 4 is a six-axis robot arm. A mounting frame 41 is fixed to the end of the multi-axis robot arm 4. Two sets of material handling fixtures 42, a cleaning structure 43, and a breaking structure 44 are provided on the mounting frame 41. The two sets of material handling fixtures 42 are symmetrically arranged. The material handling fixtures 42 are used to remove the tray 6 from the positioning fixture 22 and / or the injection mold 3. Specifically, one set of material handling fixtures 42 is used to place the semi-finished tray 6, and the other set of material handling fixtures 42 is used to place the finished tray 6, thereby realizing material loading while unloading, avoiding the reciprocating movement of loading and unloading, reducing turnover processes, and greatly improving the efficiency of the tray 6. To improve material handling efficiency, after injection molding, the semi-finished card tray 6 will have a vertical sprue column. If the material is picked up directly, the sprue column will cause some obstruction. The breaking structure 44 on the multi-axis robot arm 4 breaks the sprue column of the card tray 6 after injection molding. Then, the pick-and-place fixture 42 takes out the injection molded card tray 6. After the pick-and-place fixture 42 takes out the injection molded card tray 6 from the injection mold 3, the cleaning structure 43 cleans the surface of the injection mold 3 and the injection tank 31 to remove residual silicone, ensuring the cleanliness of the surface of the injection mold 3 and the injection tank 31. This prevents residual silicone from affecting the placement of the card tray 6 and ensures that the semi-finished card tray 6 can be placed flat in the injection tank 31, thus improving the injection molding quality of the card tray 6.

[0047] For further details, please refer to... Figures 4-7 A linear guide module 26 is embedded in the device platform 1. A positioning fixture 22 is fixed on the slide of the linear guide module 26. The linear guide module 26 drives the positioning fixture 22 to move between the multi-axis robot 4 and the vibrating tray assembly 24, so as to facilitate the picking and placing of material by the picking and placing fixture 42 on the multi-axis robot 4 and the placing of material by the spider robot 21 on the tray 6. Specifically, the positioning fixture 22 includes a first base frame 221, on which a first top plate 222 is fixed. The tray positioning groove 223 is set on the top surface of the first top plate 222. Below the first top plate 222, there is a first push plate 225 driven by a first cylinder 224. The first push plate 225 is provided with a plurality of first top posts 226, each corresponding to a tray positioning groove 223. The bottom surface of the tray positioning groove 223 is provided with a first positioning post 227 and a first magnet 228. When picking up material, the first cylinder 224... 4. Drive the first push plate 225 to move upward. The first top post 226 on the first push plate 225 passes through the first top plate 222 and pushes the card tray 6 in the card tray positioning groove 223 against the magnetic attraction of the first magnet 228. In this embodiment, the first top post 226 can be set to two or three, and the first magnet 228 can be set to two. In order to ensure that the first push plate 225 can be pushed upward smoothly, the first push plate 225 and the first top plate 222 are connected by a guide post (not shown in the figure) to avoid the first push plate 225 from being misaligned.

[0048] In this embodiment, please refer to Figures 8-10 The material handling fixture 42 includes a second base frame 421, on which a second top plate 422 is fixed. A matrix of card tray placement slots 423 is provided on the surface of the second top plate 422 facing away from the second base frame 421. Each card tray placement slot 423 corresponds to a card tray positioning slot 223. A second push plate 425 driven by a second cylinder 424 is provided between the second top plate 422 and the second base frame 421. A plurality of second top posts 426 are provided on the surface of the second push plate 425 near the second top plate 422. Each second top post 426 corresponds to a card tray placement slot 423. A second positioning post 427 and a second magnet 428 are provided at the bottom of each card tray placement slot 423. During material handling, the second top plate 422 is in contact with the first top plate 222. The push plate 225 pushes the card tray 6 from the card tray positioning groove 223 into the card tray pick-up and place groove 423 of the second top plate 422, and uses the second magnet 428 to attract and fix the card tray 6. When the pick-up and place jig 42 needs to place the card tray 6 into the injection mold 3, the second top plate 422 is attached to the top surface of the injection mold 3, and the second cylinder 424 drives the second push plate 425 to push the card tray 6 from the card tray pick-up and place groove 423 into the injection groove 31 of the injection mold 3. The injection groove 31 of the injection mold 3 is relatively shallow. After the card tray 6 is positioned and placed into the injection groove 31, after the second top plate 422 is attached to the injection mold 3, the second magnet 428 can use magnetic attraction to attract the card tray 6 into the card tray pick-up and place groove 423, thereby realizing the removal of the card tray 6 after injection. Furthermore, one set of material handling fixtures 42 is located between the second push plate 425 and the second base frame 421, and a third push plate 429 is provided. The third push plate 429 is connected to the second push plate 425 by a first spring 4210. The third push plate 429 is connected to the second cylinder 424. The second push plate 425 and the third push plate 429, as well as the second push plate 425 and the second top plate 422 in this set of material handling fixtures 42, are also slidably connected by guide columns to avoid misalignment. The third push plate 429 elastically pushes the second push plate 425, and then the second top column 426 on the second push plate 425 pushes the card holder 6. Compared with the second cylinder 424 directly acting on the second push plate 425, the first spring 4210 can play a certain buffering effect to avoid the card holder 6 from deforming when ejecting the injection molded card holder 6.

[0049] In this embodiment, please refer to Figure 9 The second base frame 421 of the other set of material handling fixtures 42 is slidably connected to the second top plate 422 via a stepped cylinder 4211, and a second spring 4212 fixedly connected to the second top plate 422 is sleeved on the outside of the stepped cylinder 4211. The stepped cylinder 4211 can play a guiding role on the one hand, and the setting of the second spring 4212 can play an elastic buffering role between the second top plate 422 and the second push plate 425, which can achieve the same effect as the set of material handling fixtures 42 above.

[0050] Please also refer to Figure 7 , Figure 10 The top surface of the first top plate 222 is provided with a matrix of alignment grooves 229, and the surface of the second top plate 422 is provided with alignment posts 4213 that match the alignment grooves 229. Of course, the surface of the injection mold 3 is also provided with alignment grooves 229 that match the alignment posts 4213. When picking up or unloading material, the alignment posts 4213 are inserted into the alignment grooves 229, which ensures the alignment accuracy of the picking and unloading fixture 42, the positioning fixture 22 and the injection mold 3, and ensures that the card holder picking and unloading groove 423 is precisely aligned with the card holder positioning groove 223 on the positioning fixture 22 and the injection groove 31 on the injection mold 3.

[0051] In this embodiment, please refer to Figure 4 , Figure 8 The cleaning structure 43 includes a cleaning frame 431, which is fixedly connected to the mounting frame 41. A cleaning motor 432 is installed on the cleaning frame 431. A cleaning brush 433 is driven to the output end of the cleaning motor 432. An air knife assembly 434 is fixed on the cleaning frame 431. The cleaning motor 432 drives the cleaning brush 433 to clean the surface of the injection mold 3 after the card holder 6 is injected, so as to remove silicone residue. The air knife assembly 434 scrapes the surface of the injection mold 3 and blows out the residual silicone through the air vent.

[0052] In this embodiment, please refer to Figure 4 , Figure 8 The breaking structure 44 includes a breaking frame 441, on which two sets of finger cylinders 442 are installed. The number of finger cylinders 442 is consistent with the number of sprue columns left after injection molding of the card holder 6. Two breaking fingers 443 are fixedly installed at the output end of the finger cylinders 442. The two breaking fingers 443 on the finger cylinders 442 clamp the sprue column, and the toothed blades on the inner side of the breaking fingers 443 break the sprue column.

[0053] Example 2

[0054] This embodiment provides a method for loading and unloading card trays, which uses the loading and unloading device for card tray injection rings in Embodiment 1 for loading and unloading, and includes the following steps:

[0055] 1) Through the human-machine interface screen 12, all actuators are activated, and the semi-finished product tray 6 flows from the feeding box 25 into the vibrating tray assembly 24. The spider robot 21 picks up the semi-finished product tray 6 from the vibrating tray assembly 24 and places it into the tray positioning slot 223 of the positioning fixture 22 until all the tray positioning slots 223 on the positioning fixture 22 are filled with semi-finished product trays 6.

[0056] 2) The multi-axis robot 4 drives one of the pick-and-place fixtures 42 to move onto the positioning fixture 22. The pick-and-place fixture takes out the semi-finished product tray 6 from the positioning fixture 22. The first push plate 225 in the positioning fixture 22 moves upward under the push of the first cylinder 224. The first top column 226 pushes the semi-finished product tray 6 in the tray positioning groove 223 into the tray pick-and-place groove 423 of the pick-and-place fixture 42, and fixes the semi-finished product tray 6 by adsorption through the second magnet 428.

[0057] 3) The breaking structure 44 breaks the sprue column after injection on the clamp 6 on the injection mold 3. Another set of material handling components on the multi-axis robot 4 takes out the clamp 6 on the injection mold 3. Specifically, the free end of the multi-axis robot 4 moves to the injection mold 3. By adjusting the angle of the multi-axis robot 4, two sets of finger cylinders 442 drive the breaking fingers 443 to clamp the sprue column.

[0058] 4) The cleaning structure 43 cleans the surface of the injection mold 3. After cleaning, the material handling component holding the semi-finished product tray 6 puts the semi-finished product tray 6 into the injection groove 31 of the injection mold 3. The injection molding machine 5 performs silicone injection on the semi-finished product tray 6. At the same time as the injection molding machine 5 is injecting, the multi-axis robot arm 4 drives the material handling component to put the finished product tray 6 into the finished product box 13. This optimizes the loading and unloading process, ensures accurate material placement, and improves work efficiency.

[0059] The working principle of the loading and unloading device and method for injection molding rings provided by this invention is as follows: The spider robot 21 picks up the semi-finished card tray 6 and places it into the card tray positioning groove 223 of the positioning fixture 22. After the breaking structure 44 breaks off the sprue column of the card tray 6 after injection molding, a set of pick-and-place fixtures 42 on the multi-axis robot 4 takes out the injection molded card tray 6 from the injection mold 3. The cleaning structure 43 cleans the injection mold 3 to ensure the injection quality of the card tray 6. Another set of pick-and-place fixtures 42 transfers the semi-finished card tray 6 in the card tray positioning groove 223 to the injection mold 3 for injection molding. The cycle continues until the semi-finished card tray 6 is completed. The modular design simplifies the mechanism, reduces the number of parts, and reduces manufacturing and maintenance costs. It combines feeding, loading and unloading into an integrated action, optimizes the loading and unloading process, shortens the cycle time, improves continuous operation capability and overall automation level, and significantly improves the production efficiency and yield of the card tray 6.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A loading and unloading device for injection molding rings, characterized in that, include: Device platform; The feeding mechanism includes a spider robot and a positioning fixture. The positioning fixture is provided with a matrix of tray positioning slots. The spider robot grabs the semi-finished product tray and places it into the tray positioning slot of the positioning fixture. The injection mold is mounted on the injection molding machine and has injection grooves for positioning and placing the card tray. The distribution of the injection grooves is consistent with the distribution of the card tray positioning grooves on the positioning fixture. A multi-axis robot arm with a mounting frame fixed on it. The mounting frame is equipped with two sets of material handling fixtures, a cleaning structure and a breaking structure. The material handling fixtures are used to remove the card tray from the positioning fixture and / or the injection mold. The cleaning structure is used to clean the injection mold. The breaking structure is used to break off the sprue column of the card tray after injection molding. The feeding mechanism also includes a frame, the spider robot is mounted on the frame, the frame has a vibrating tray assembly below the spider robot, and a feeding box is provided on one side of the top of the vibrating tray assembly. The semi-finished product tray in the feeding box flows into the top of the vibrating tray assembly, and the spider robot grabs the semi-finished product tray and places it into the tray positioning groove of the positioning fixture. The feeding mechanism also includes a linear guide rail module embedded in the device platform. The positioning fixture is mounted on the linear guide rail module. The positioning fixture includes a first base frame, on which a first top plate is fixed. The card tray positioning groove is disposed on the top surface of the first top plate. Below the first top plate is a first push plate driven by a first cylinder. The first push plate is provided with a plurality of first top posts, each of which corresponds to a card tray positioning groove. The bottom surface of the card tray positioning groove is provided with a first positioning post and a first magnet.

2. The loading and unloading device for a card holder injection molding ring according to claim 1, characterized in that, The structure of the material handling fixture is similar to that of the positioning fixture, and it includes a second base frame, a second top plate, a card tray handling slot, a second cylinder, a second push plate, a second top column, a second positioning column, and a second magnet.

3. The loading and unloading device for a card holder injection molding ring according to claim 2, characterized in that, One set of the material handling fixtures is provided with a third push plate between the second push plate and the second base frame. The third push plate is connected to the second push plate by a first spring and is connected to the second cylinder.

4. The loading and unloading device for a card holder injection molding ring according to claim 3, characterized in that, The second base frame of the other set of material handling fixtures is slidably connected to the second top plate via a stepped cylinder, and a second spring is fitted on the outer side of the stepped cylinder and fixedly connected to the second top plate.

5. The loading and unloading device for a card holder injection molding ring according to claim 4, characterized in that, The top surface of the first top plate is provided with a matrix of alignment grooves, and the surface of the second top plate is provided with alignment posts that match the alignment grooves.

6. The loading and unloading device for a card holder injection molding ring according to claim 1, characterized in that, The cleaning structure includes a cleaning frame, which is fixedly connected to a mounting frame. A cleaning motor is installed on the cleaning frame, and a cleaning brush is driven to the output end of the cleaning motor. An air knife assembly is fixed on the cleaning frame.

7. The loading and unloading device for a card holder injection molding ring according to claim 1, characterized in that, The breaking structure includes a breaking frame, on which at least two sets of finger cylinders are mounted, and two broken fingers are fixedly mounted at the output end of each finger cylinder.

8. A method for loading and unloading a card tray, characterized in that, It uses the loading and unloading device for injection molding rings as described in claim 1 for loading and unloading, including the following steps: 1) The spider robotic arm picks up the semi-finished card tray and places it into the card tray positioning slot of the positioning fixture until all the card tray positioning slots on the positioning fixture are filled with semi-finished card trays. 2) The multi-axis robot arm drives one set of pick-and-place fixtures to move onto the positioning fixture, and the pick-and-place fixtures take out the semi-finished product trays from the positioning fixture; 3) Break the sprue column after injection molding by breaking off the clamp on the injection mold; another set of material handling fixtures on the multi-axis robot arm removes the clamp on the injection mold. 4) The cleaning structure cleans the surface of the injection mold. After cleaning, the pick-and-place fixture holding the semi-finished product tray puts the semi-finished product tray into the injection groove of the injection mold. The injection molding machine performs silicone injection on the semi-finished product tray. At the same time as the injection molding machine is injecting, the multi-axis robot arm drives the pick-and-place fixture to put the finished product tray into the finished product box.

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