Embedded detecting and weighing integrated equipment for safety air bag injection molding part nut

Abstract

The invention relates to the technical field of injection molding part automatic production equipment, and discloses safety airbag injection molding part nut embedding, detecting and weighing integrated equipment which comprises an injection molding machine, a feeding table is arranged on the outer side of the injection molding machine, a weighing assembly is arranged in the feeding table, and the weighing assembly is used for weighing finished products. A vibrating disc is fixedly connected into the feeding table, a conveying assembly is arranged on one side of the feeding table and used for conveying finished products and sorting defective products at the same time, a packaging table is arranged on the outer side of the conveying assembly, and a feeding assembly is arranged on the other side of the feeding table and used for feeding the vibrating disc. The clamping plates are driven to rotate inwards through the gravity of finished products, the rubber rollers make contact with the finished products, the finished product positioning effect is achieved, meanwhile, impact and vibration of the finished products are transmitted to the sliding blocks through the connecting rods to extrude the second springs to absorb vibration, weighing data stability is guaranteed, and the weighing precision and the finished product protection capacity are improved through the structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic production equipment of injection molding parts, in particular to a safety airbag injection molding part nut embedding detection and weighing integrated equipment. BACKGROUND

[0002] With the continuous improvement of the automation level of the injection molding industry, injection molding parts with embedded nuts are increasingly widely used in the field of safety airbag shells. Such finished products have high requirements for nut embedding precision, installation firmness and product weight consistency. Traditional production modes mostly use segmented operations such as manual feeding, manual embedding and manual detection, which have defects such as low efficiency, large error and poor stability, and have been difficult to adapt to mass production and high-precision production requirements. Therefore, it is of great significance to develop a safety airbag injection molding part nut embedding detection and weighing integrated equipment that integrates nut automatic feeding, embedding, molding, detection, weighing and sorting, to improve the production automation level and product quality stability.

[0003] In the prior art, quality detection of injection molding part finished products mostly uses independent weighing equipment. The finished product is usually placed directly on the weighing platform, positioned by simple stop blocks or fixed clamps, and the weighing platform and the base are rigidly connected, only buffered by simple pads, and the overall structure lacks targeted shock absorption and flexible positioning design. During the placement and detection of the finished product, the limit is mainly completed by rigid contact, and the weight signal is directly collected by the sensor to realize quality judgment, and the surface protection of the finished product and external vibration interference are not systematically optimized.

[0004] However, the existing weighing equipment generally has the problems of scratching the finished product during positioning, and the impact of placing the finished product and external vibration interfering with the weighing result, resulting in insufficient stability of the weighing data, and at the same time, scratches and dents may appear on the surface of the finished product, affecting the product pass rate and use effect. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a safety airbag injection molding part nut embedding detection and weighing integrated equipment, which solves the problems of scratching the finished product during weighing positioning in the existing injection molding part nut embedding production equipment, and unstable weighing caused by vibration interference.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: a kind of air bag injection molding nut embedding detection weighing integrated equipment, including injection molding machine, the injection molding machine outside is provided with feed table, the feed table inside is provided with weighing assembly, the weighing assembly is used to weigh finished product, the feed table inside is fixedly connected with vibrating disc, the feed table one side is provided with conveying assembly, the conveying assembly is used to convey finished product, while sorting defective product, the conveying assembly outside is provided with packaging table, the feed table other side is provided with feed assembly, the feed assembly is used to feed vibrating disc; The weighing assembly includes a base, the base is provided in the feed table, the base is fixedly connected with a weighing sensor above, the weighing sensor is fixedly connected with a weighing table above, the weighing table is rotatably connected with a clamping plate inside, the clamping plate is rotatably connected with a rubber roller inside, the clamping plate is fixedly connected with a first spring below, the first spring is fixedly connected at the other end of the weighing table bottom, the base bottom is fixedly connected with a suction disc support leg.

[0007] Preferably, the weighing assembly further includes a fixed rod, the fixed rod is fixedly connected in the base, the fixed rod is slidably connected with a sliding block outside, the sliding block is rotatably connected with a connecting rod above, the connecting rod is rotatably connected at the other end of the weighing table bottom, the fixed rod is provided with a second spring outside, the second spring is fixedly connected at one end in the base, the second spring is fixedly connected at the other end on one side of the sliding block.

[0008] Preferably, the conveying assembly includes a support and a conveying belt, the support is provided on one side of the feed table, the conveying belt is rotatably connected in the support, the support is rotatably connected with a cylinder on one side, the support is rotatably connected with a push plate inside, the cylinder output end is rotatably connected with the push plate through a connecting piece, the support is fixedly connected with a guide plate on one side.

[0009] Preferably, the conveying assembly further includes a base plate and a rotating frame, the base plate is provided on one side of the support, the rotating frame is rotatably connected in the base plate, the rotating frame is slidably connected with a defective product collecting box inside, the defective product collecting box is fixedly connected with a limiting strip outside, the limiting strip is slidably connected in the rotating frame, the base plate is fixedly connected with a first motor outside, the first motor output end is fixedly connected with a worm, the rotating frame bottom is fixedly connected with a worm wheel, the worm wheel is engaged with the worm.

[0010] Preferably, the feeding assembly comprises an eccentric bin and a support frame, the support frame is arranged on the other side of the feeding table, the eccentric bin is fixedly connected in the support frame, a top cover is rotatably connected to the top of the eccentric bin, a valve is fixedly connected to the bottom of the eccentric bin, a gradually tapered diameter flow guide bin is fixedly connected to the bottom of the valve, a flow guide plate is fixedly connected to the bottom of the gradually tapered diameter flow guide bin, a second motor is fixedly connected to the outside of the eccentric bin, a rotating rod is fixedly connected to the output end of the second motor, a plurality of soft rubber shift rods are fixedly connected to the outer periphery of the rotating rod, and a spiral slide is arranged in the gradually tapered diameter flow guide bin.

[0011] Preferably, a manipulator is fixedly connected to the top of the injection molding machine, a three-axis servo module is fixedly connected in the feeding table, a clamping jaw for clamping nuts is slidably connected to the outside of the three-axis servo module, and a photoelectric sensor for monitoring the remaining nut quantity is arranged in the vibration disc.

[0012] Preferably, a placing table is fixedly connected in the feeding table, and a nut detection table is fixedly connected in the feeding table.

[0013] Preferably, two visual sensors for detecting the nut detection table are fixedly connected in the feeding table, and the two visual sensors are oppositely installed on both sides of the feeding table.

[0014] Preferably, an infrared sensor for positioning the position of a defective product collecting box is fixedly connected to one side of the support frame, the number of the defective product collecting boxes is three, and the three defective product collecting boxes correspond to different types of defective products.

[0015] Preferably, the inner diameter of the gradually tapered diameter flow guide bin is linearly reduced along the nut conveying direction, and the minimum inner diameter is slightly larger than the maximum outer diameter of a single nut.

[0016] The application provides a safety airbag injection molding nut embedding detection and weighing integrated device. 1、The first spring is compressed and turned inward by the gravity of the finished product, the rubber roller is in flexible contact with the finished product, so that the effects of flexible positioning and scratch prevention of the finished product are achieved, meanwhile, the impact and vibration of the finished product are transmitted to the sliding block through the connecting rod, the second spring is compressed to absorb the vibration, the weighing data is stable, the problems of scratch of the surface of the finished product and instability of the weighing data caused by vibration interference of the existing weighing device are solved, and the weighing precision and the protection ability of the finished product are improved through the above structure.

[0017] 2、The present application drives the soft rubber lever to rotate the nut by the eccentric cone bin structure and the material level signal, so as to achieve the effects of active arch breaking and anti-blocking, forced nut single-column orderly flow guiding, solve the problems of bridging and blocking of the existing nut feeding device, and improve the continuity and stability of the nut feeding through the above structure.

[0018] 3、The present application drives the worm and the worm gear to mesh and drive through the defective product signal, drives the rotating frame to rotate to make the corresponding defective product collection box accurately butt joint the guide plate, and cooperates with the cylinder to drive the push plate to guide the defective product to slide out, so as to achieve the effects of accurate classification and collection of defective products and accurate positioning, solve the problems of classification confusion, positioning deviation and inability to accurately correspond to the defective type of the existing defective product sorting device, and improve the accuracy and automation efficiency of defective product sorting through the above structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the present application; Figure 2 It is a feeding table schematic view of the present application; Figure 3 It is a weighing assembly schematic view of the present application; Figure 4 It is a base schematic view of the present application; Figure 5 It is a conveying assembly schematic view of the present application; Figure 6 It is a chassis schematic view of the present application; Figure 7 It is a feeding assembly schematic view of the present application; Figure 8 It is a feeding assembly cutaway schematic view of the present application.

[0020] Among them, 1, injection molding machine; 2, feeding table; 3, weighing assembly; 31, base; 32, weighing table; 33, weighing sensor; 34, clamping plate; 35, rubber roller; 36, first spring; 37, suction cup support foot; 38, fixed rod; 39, connecting rod; 310, sliding block; 311, second spring; 4, conveying assembly; 41, support; 42, conveying belt; 43, cylinder; 44, push plate; 45, guide plate; 46, infrared sensor; 47, chassis; 48, rotating frame; 49, defective product collection box; 410, limiting strip; 411, first motor; 412, worm; 413, worm gear; 5, packaging table; 6, feeding assembly; 61, eccentric bin; 62, top cover; 63, support frame; 64, valve; 65, gradually changing diameter reducing flow guide bin; 66, flow guide plate; 67, second motor; 68, rotating rod; 69, soft rubber lever; 610, spiral chute; 7, mechanical hand; 8, vibrating disc; 9, three-axis servo module; 10, placing table; 11, nut detection table; 12, vision sensor. DETAILED DESCRIPTION

[0021] With reference to the drawings, the technical solutions in the embodiments of the present application will be described clearly and completely in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to the drawings in the present application Figure 1 - the drawings Figure 8 The embodiment of the present application provides a kind of air bag injection molding nut embedding detection weighing integrated equipment, including injection molding machine 1, injection molding machine 1 outside is provided with feed table 2, feed table 2 inside is provided with weighing assembly 3, weighing assembly 3 is used to weigh finished product, feed table 2 inside is fixedly connected with vibration disc 8, feed table 2 one side is provided with conveying assembly 4, conveying assembly 4 is used to transport finished product, and simultaneously sorting defective product, conveying assembly 4 outside is provided with packaging table 5, feed table 2 other side is provided with feed assembly 6, feed assembly 6 is used to feed vibration disc 8.

[0023] Specifically, the whole is according to the automatic process of feeding-embedding-molding-detection-weighing-sorting-packaging operation. When equipment works, first, injection molding machine 1 completes the molding operation of injection molding part, and injection molding machine 1 is used to stably complete plastic melting, injection, pressure maintaining and cooling opening mold action. On one side of feed table 2, feed assembly 6 continuously feeds vibration disc 8, and the vibration disc 8 realizes nut directional sequencing by vibration, to provide material source for subsequent nut embedding; feed table 2 is internally carried with weighing assembly 3, to accurately detect the weight of finished product after injection molding, to judge whether there is overweight, material shortage, nut missing embedding and other quality abnormalities. The other side of feed table 2 is provided with conveying assembly 4, responsible for conveying qualified finished product forward, and automatically sorting and removing defective product according to detection result; qualified finished product after sorting is finally conveyed to packaging table 5, enters subsequent packaging process, so as to realize the whole process automation production from injection, nut feeding, embedding detection, weighing to sorting and packaging.

[0024] Please refer to the drawings in the present application Figure 2 - the drawings Figure 4In a preferred embodiment of the present application, the weighing assembly 3 comprises a base 31 arranged inside the feeding table 2, a weighing sensor 33 fixedly connected above the base 31, a weighing table 32 fixedly connected above the weighing sensor 33, a clamping plate 34 rotatably connected inside the weighing table 32, a rubber roller 35 rotatably connected inside the clamping plate 34, a first spring 36 fixedly connected below the clamping plate 34, the other end of the first spring 36 being fixedly connected to the bottom of the weighing table 32, a suction cup supporting leg 37 fixedly connected to the bottom of the base 31, and the weighing assembly 3 further comprises a fixing rod 38 fixedly connected inside the base 31, a sliding block 310 slidingly connected to the outer periphery of the fixing rod 38, a connecting rod 39 rotatably connected above the sliding block 310, the other end of the connecting rod 39 being rotatably connected to the bottom of the weighing table 32, and a second spring 311 sleeved to the outer periphery of the fixing rod 38, one end of the second spring 311 being fixedly connected inside the base 31 and the other end of the second spring 311 being fixedly connected to one side of the sliding block 310.

[0025] Specifically, the weighing assembly 3 serves as a component for detecting the weight of the finished product of the equipment and is integrally installed inside the feeding table 2. The base 31 serves as the installation basis of the entire weighing assembly 3 and functions to fixedly support all components. The suction cup supporting leg 37 fixedly connected to the bottom of the base 31 is made of silica gel vacuum suction cup and can be adsorbed to the inner bottom surface of the feeding table 2, effectively reducing the vibration generated during the overall operation of the equipment and transmitted to the weighing structure, thereby providing protection for the weighing precision. The weighing sensor 33 fixedly connected above the base 31 is made of a spoke type weighing sensor and is responsible for converting the gravity signal of the finished product into an electrical signal to realize accurate detection of the weight. The weighing table 32 fixedly connected above the weighing sensor 33 serves as a bearing platform for the finished product. The clamping plate 34 rotatably connected inside the weighing table 32 cooperates with the first spring 36 fixedly connected below to form a flexible positioning structure. When the finished product is placed on the weighing table 32, the gravity of the finished product presses the clamping plate 34, drives the clamping plate 34 to rotate inward around the rotation point, and simultaneously compresses the first spring 36, until the rubber roller 35 rotatably connected inside the clamping plate 34 is in flexible contact with the surface of the finished product. The rubber roller 35 can effectively avoid rigid collision between the clamping plate 34 and the finished product, prevent the surface of the finished product from being scratched, and simultaneously realize automatic centering positioning of the finished product, thereby avoiding the influence of the deviation of the finished product on the weighing precision.

[0026] In addition, the weighing assembly 3 is also provided with a buffer damping structure. The fixed rod 38 is fixed in the base 31. The outer periphery of the fixed rod 38 is slidingly connected with the sliding block 310 and rotationally connected with the connecting rod 39. The second spring 311 is sleeved on the outer periphery of the fixed rod 38. The buffer damping effect is achieved in cooperation. When the finished product placed on the weighing table 32 is impacted or the equipment is vibrated during operation, the vibration and impact force is transmitted to the connecting rod 39 through the weighing table 32. The connecting rod 39 drives the sliding block 310 to slide along the fixed rod 38. The sliding block 310 extrudes the second spring 311. The vibration and impact energy is absorbed through the elastic deformation of the second spring 311. The vibration interference to the detection signal of the weighing sensor 33 is avoided. The stability and accuracy of the weighing data are further ensured. It is ensured that whether the finished product has quality abnormalities such as overweight, material shortage, nut missing and the like can be accurately judged.

[0027] Please refer to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 In a preferred embodiment of the present application, the conveying assembly 4 comprises a support 41 and a conveying belt 42. The support 41 is arranged on one side of the feeding table 2. The conveying belt 42 is rotationally connected in the support 41. A cylinder 43 is rotationally connected on one side of the support 41. A pushing plate 44 is rotationally connected in the support 41. The output end of the cylinder 43 is rotationally connected with the pushing plate 44 through a connecting piece. A guide plate 45 is fixedly connected on one side of the support 41. The conveying assembly 4 further comprises a bottom disc 47 and a rotating frame 48. The bottom disc 47 is arranged on one side of the support 41. The rotating frame 48 is rotationally connected in the bottom disc 47. A defective product collecting box 49 is slidingly connected in the rotating frame 48. A limiting strip 410 is fixedly connected on the outer side of the defective product collecting box 49. The limiting strip 410 is slidingly connected in the rotating frame 48. A first motor 411 is fixedly connected on the outer side of the bottom disc 47. A worm 412 is fixedly connected at the output end of the first motor 411. A worm wheel 413 is fixedly connected at the bottom of the rotating frame 48. The worm wheel 413 is engaged with the worm 412. An infrared sensor 46 for positioning the position of the defective product collecting box 49 is fixedly connected on one side of the support 41. The number of the defective product collecting box 49 is three. The three defective product collecting boxes 49 correspond to different types of defective products.

[0028] Specifically, the conveying assembly 4 is a component of the device for realizing finished product conveying and accurate classification of defective products. The whole assembly operates according to the process of finished product conveying-defective product identification-positioning docking-sorting collection, is installed on one side of the feeding table 2, and connects the weighing detection and the subsequent packaging process. The support 41 serves as the installation support base of the whole conveying assembly 4, is used for fixing all components such as the conveying belt 42, the air cylinder 43 and the guide plate 45, ensures the stability of the components during operation, and avoids the influence of deviation and shaking on the sorting accuracy. The conveying belt 42 rotatably connected inside the support 41 is a speed-regulating conveying belt, is responsible for conveying the finished products after weighing detection, directly conveys the qualified finished products to the packaging table 5, and completes the sorting of the defective products during the conveying process, so as to ensure the orderly and efficient conveying process. The air cylinder 43 rotatably connected on one side of the support 41 is rotatably connected with the push plate 44 through a connecting piece, serves as the power source of the push plate 44, can drive the push plate 44 to swing around the rotation point, and realizes the guiding and sorting of the defective products. The side of the push plate 44 in contact with the finished products is made of flexible material, so as to avoid scratching the surface of the finished products during sorting. The guide plate 45 fixedly connected on one side of the support 41 is designed in an inclined manner, is used for stably guiding the defective products guided out by the push plate 44 to the defective product collection box 49, and prevents the finished products from falling and colliding.

[0029] The defective product classification and collection structure of the conveying assembly 4 is composed of a bottom plate 47, a rotating frame 48, a defective product collection box 49 and a transmission component. The bottom plate 47 is fixed on one side of the support 41, serves as the installation base of the rotating frame 48, and ensures the coaxiality of the rotating frame 48 during rotation. The rotating frame 48 is rotatably connected inside the bottom plate 47, is used for fixing the defective product collection box 49, the bottom of the defective product collection box 49 is fixedly connected with a worm gear 413, the worm gear 413 is engaged with a worm 412 at the output end of a first motor 411 fixedly connected outside the bottom plate 47, the first motor 411 is a small-sized reduction motor, can drive the worm 412 to rotate, and drives the rotating frame 48 to slowly rotate through the engagement transmission of the worm gear 413 and the worm 412, so as to realize the position switching of the defective product collection box 49.

[0030] The infrared sensor 46 fixedly connected on one side of the support 41 is a diffuse reflection type infrared sensor, is used for sensing the position of the defective product collection box 49 in real time, ensures that the corresponding type of defective product collection box 49 can be accurately docked below the guide plate 45 after the rotating frame 48 rotates, and avoids sorting misplacement. The number of the defective product collection boxes 49 is three, correspondingly to three different types of defective products such as missing nut, overweight and embedded defective product, realizes the classification and collection of the defective products, and is convenient for subsequent rework processing. The limiting strip 410 fixedly connected outside the defective product collection box 49 is slidingly connected inside the rotating frame 48, plays a limiting and fixing role, prevents the defective product collection box 49 from deviating and shaking during the rotation of the rotating frame 48 or the falling of the finished products, and ensures the stability during the collection process.

[0031] Please refer to the accompanying drawings Figure 7 and the accompanying drawings Figure 8In a preferred embodiment of the present application, the feeding assembly 6 comprises an eccentric bin 61 and a support frame 63 arranged on the other side of the feeding table 2, the eccentric bin 61 is fixedly connected inside the support frame 63, a top cover 62 is rotatably connected to the top of the eccentric bin 61, a valve 64 is fixedly connected to the bottom of the eccentric bin 61, a gradually tapered diameter flow guide bin 65 is fixedly connected to the bottom of the valve 64, a flow guide plate 66 is fixedly connected to the bottom of the gradually tapered diameter flow guide bin 65, a second motor 67 is fixedly connected to the outside of the eccentric bin 61, a rotating rod 68 is fixedly connected to the output end of the second motor 67, a plurality of soft rubber stirring rods 69 are fixedly connected to the outer periphery of the rotating rod 68, a spiral chute 610 is arranged inside the gradually tapered diameter flow guide bin 65, the inner diameter of the gradually tapered diameter flow guide bin 65 linearly decreases in the nut conveying direction, and the minimum inner diameter is slightly larger than the maximum outer diameter of a single nut.

[0032] Specifically, the feeding assembly 6 is a component for the device to automatically and stably feed nuts, and as a whole, it operates according to the process of storing materials, preventing arching and blocking, orderly flow guiding, and accurate material supplementing, is installed on the other side of the feeding table 2, is responsible for continuously supplementing nuts for the vibration disc 8, and ensures the continuity of the subsequent nut burying process. Each component cooperates to effectively solve the problems of bridging, blocking, and stacking of nuts during the feeding process. The support frame 63, as the mounting support structure of the entire feeding assembly 6, is welded from profile steel, is used to stably fix the eccentric bin 61 on the other side of the feeding table 2, ensures that the eccentric bin 61 does not shake or deviate during operation, and provides a stable foundation for the entire feeding process.

[0033] The eccentric bin 61 fixedly connected inside the support frame 63 can reduce the probability of nut bridging from the root, compared with the traditional positive cone bin, can store a sufficient amount of nuts to meet the long-time continuous production needs of the device; the top cover 62 rotatably connected to the top of the eccentric bin 61 is designed in a sealed manner, can prevent dust and debris from entering the bin and contaminating the nuts, and can also facilitate the periodic addition of nuts by workers, improving the operation convenience. The second motor 67 fixedly connected to the outside of the eccentric bin 61, the rotating rod 68 fixedly connected to the output end of the small reduction motor, penetrates into the inside of the eccentric bin 61, and the plurality of soft rubber stirring rods 69 fixedly connected to the outer periphery of the rotating rod 68 are made of food-grade PU soft rubber material, which is soft and will not scratch the surface of the nuts, and can effectively scatter the accumulated nuts.

[0034] When the photoelectric sensor in the vibration disc 8 detects that the nuts are insufficient, the second motor 67 starts to drive the rotating rod 68 to rotate slowly, and then drive the soft rubber rod 69 to rotate synchronously inside the eccentric hopper 61, to disturb the stacked nuts, actively break the formed material arch, avoid the nut bridge from being blocked, and ensure that the nuts can flow downward. The valve 64 fixedly connected at the bottom of the eccentric hopper 61 is a small electromagnetic ball valve, which can be automatically opened or closed according to the material level requirement of the vibration disc 8, to realize the on-demand feeding of the nuts, avoid the vibration disc 8 from being blocked due to excessive feeding, and avoid the production progress from being affected due to insufficient feeding.

[0035] The gradually reduced diameter flow guide bin 65 fixedly connected at the bottom of the valve 64 has a linearly gradually reduced inner diameter along the nut flow direction, the minimum inner diameter is slightly larger than the maximum outer diameter of a single nut, and cooperates with the internal spiral slide 610 to forcibly guide the disordered stacked nuts to be single-column and orderly downward, effectively avoid the nut stacking and cross blocking, and ensure that each nut can stably and orderly enter the subsequent flow guide link. The flow guide plate 66 fixedly connected at the bottom of the gradually reduced diameter flow guide bin 65 is designed in an inclined arc shape and has a smooth surface, used to guide the nuts sorted by the spiral slide 610 to the feeding port of the vibration disc 8, avoid the nuts from colliding and deviating when falling, and ensure that the nuts can enter the vibration disc 8, to provide a stable and orderly material source for the three-axis servo module 9 to take and bury the nuts, and improve the feeding stability and automation level of the equipment as a whole.

[0036] Please refer to the accompanying Figure 1 and the accompanying Figure 2 , the mechanical hand 7 is fixedly connected at the top of the injection molding machine 1, the three-axis servo module 9 is fixedly connected inside the feeding table 2, the clamping jaw for clamping the nuts is slidably connected outside the three-axis servo module 9, the photoelectric sensor for monitoring the remaining nut amount is arranged inside the vibration disc 8, the placing table 10 is fixedly connected inside the feeding table 2, the nut detection table 11 is fixedly connected inside the feeding table 2, the two visual sensors 12 for detecting the nut detection table 11 are oppositely installed inside the feeding table 2.

[0037] Specifically, the mechanical hand 7 fixedly connected at the top of the injection molding machine 1 is a 6-axis industrial mechanical hand, mainly used to put the placed finished product into the injection molding machine 1, after the injection molding machine 1 completes the injection molding and opens the mold, the mechanical hand 7 extends into the mold to grab the injection molded product with the buried nut, to avoid the problems of scalding, taking deviation and low efficiency in manual taking, and places the finished product stably on the placing table 10 inside the feeding table 2 after grabbing, to prepare for the subsequent detection and weighing processes, and can also assist in cleaning the residual sundries in the mold, to improve the operation stability of the injection molding machine 1.

[0038] The three-axis servo module 9 fixedly connected inside the feeding table 2 is a precise three-axis servo sliding table, and the clamping jaw slidingly connected outside the three-axis servo module 9 is a pneumatic clamping jaw, the head of the clamping jaw is wrapped with soft rubber, which can firmly clamp the nut and avoid clamping the surface of the nut, preventing the nut from deforming and affecting the embedding precision. The core function of the three-axis servo module 9 is to complete the automatic taking and embedding of the nut in cooperation with the vibration disc 8. When the vibration disc 8 sends the nuts to the discharge port, the three-axis servo module 9 drives the clamping jaw to move to the discharge port of the vibration disc 8, clamps the nut, and then moves the nut to the preset embedding position in the embedded product through XYZ three-axis precise movement, completing the nut embedding operation. The whole process is automatic, which greatly improves the embedding precision and efficiency and replaces the traditional manual embedding method.

[0039] The photoelectric sensor arranged inside the vibration disc 8 is a diffuse reflection photoelectric sensor, which functions to monitor the remaining nut quantity inside the vibration disc 8 in real time. When the detected nut quantity is lower than the preset threshold, a signal is immediately sent to the feeding assembly 6 to trigger the feeding assembly 6 to start feeding. When the detected nut quantity reaches the preset threshold, a signal is sent to stop feeding, realizing automatic feeding of the nut on demand, avoiding production interruption caused by lack of nuts in the vibration disc 8 or jamming caused by too many nuts, and ensuring the continuity and stability of feeding. The placing table 10 fixedly connected inside the feeding table 2 is made of anti-skid and wear-resistant material, has a smooth surface with slight anti-skid lines, and functions to support the embedded product grabbed by the mechanical hand 7, providing a stable taking reference for subsequent transfer of the mechanical hand 7.

[0040] The nut detection table 11 fixedly connected inside the feeding table 2 is the core platform for detecting the embedding quality of the nut and is used to place the injection molded product to be detected. The surface of the nut detection table 11 is provided with a positioning groove, which can realize precise positioning of the product and avoid detection error caused by product deviation during detection, providing protection for precise detection of the vision sensor 12. The two vision sensors 12 fixedly connected inside the feeding table 2 are industrial vision sensors, which are oppositely installed on both sides of the feeding table 2 and can simultaneously detect the embedding condition of the nut from both sides of the product. The core function is to accurately identify the presence or absence of the nut, the embedding depth, the embedding position deviation, and the presence or absence of defects such as overflow and damage on the surface of the nut. The detection signal is transmitted to the equipment control system in real time, providing a basis for subsequent weighing and sorting processes, and ensuring that unqualified products can be accurately identified and sorted.

[0041] Working principle: when the device is in use, the nuts are first stored in the eccentric bin 61, and the eccentric cone bin structure can reduce the nut arch bridge. When the light sensor in the vibration disc 8 detects that the material level is insufficient, the second motor 67 is triggered to start, driving the rotating rod 68 to rotate, and the soft rubber lever 69 is disturbed in the eccentric bin 61, actively breaking up the accumulated nuts, preventing clogging, then opening the valve 64, the nuts fall from the eccentric bin 61 into the gradually tapered diameter flow guide bin 65, and are forced to be single-column and orderly under the guidance of the internal spiral slide 610, avoiding stacking and jamming, the nuts slide into the vibration disc 8 through the guide plate 66, and the vibration disc 8 sorts and sends the nuts to the discharge port through vibration, waiting for the three-axis servo module 9 to take the material.

[0042] Then the three-axis servo module 9 grabs the nut with the gripper, and the nut is buried in the preset position of the finished product on the placement table 10, and then the manipulator 7 moves the finished product to the mold of the injection molding machine 1. The injection molding machine 1 is closed and the injection molding is completed. After cooling and opening the mold, the manipulator 7 takes out the injection molding product with the buried nut from the mold and places it on the nut detection table 11. The visual sensor 12 on both sides of the feeding table 2 simultaneously rechecks the presence or absence of the nut, the burial depth, the front and back, and the overflow glue condition, and determines whether it is a defective product.

[0043] The finished product after detection is transferred to the weighing table 32, and the weight of the finished product is collected by the weighing sensor 33 through the weight of the finished product itself. At the same time, the impact and vibration of the finished product are transmitted to the sliding block 310 through the connecting rod 39, and the vibration is absorbed together through the sliding block 310 extruding the second spring 311, so as to ensure the stability of the weighing data.

[0044] After weighing, the finished product is sent to the conveyor belt 42 by the manipulator 7. If it is a qualified product, the cylinder 43 does not act, and the finished product is directly conveyed to the packaging table 5 along with the conveyor belt 42. If it is a defective product, the visual sensor 12 triggers the first motor 411 to start, and through the meshing transmission of the worm 412 and the worm wheel 413, it drives the rotating frame 48 to rotate, and the corresponding defective product collection box 49 of the defective type is rotated to below the guide plate 45. The three defective product collection boxes 49 correspond to the lack of nuts, overweight, and burial defects in turn. In this process, the infrared sensor 46 is used to sense in real time whether the position of the defective product collection box 49 is accurate, and then the cylinder 43 acts to drive the lever 44 to guide the finished product to slide out from the side of the conveyor belt 42. The finished product slides into the corresponding defective product collection box 49 through the guide plate 45, realizing accurate classification and collection.

[0045] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety airbag injection molding nut embedding detection and weighing integrated device, comprising an injection molding machine (1), characterized in that, The injection molding machine (1) is provided with a feeding table (2) outside, the feeding table (2) is provided with a weighing assembly (3) inside, the weighing assembly (3) is used for weighing finished products, the feeding table (2) is fixedly connected with a vibrating disc (8) inside, one side of the feeding table (2) is provided with a conveying assembly (4), the conveying assembly (4) is used for conveying finished products, and defective products are sorted, the conveying assembly (4) is provided with a packaging table (5) outside, the other side of the feeding table (2) is provided with a feeding assembly (6), and the feeding assembly (6) is used for feeding the vibrating disc (8); The weighing assembly (3) comprises a base (31), the base (31) is arranged in the feeding table (2), a weighing sensor (33) is fixedly connected above the base (31), a weighing table (32) is fixedly connected above the weighing sensor (33), a clamping plate (34) is rotatably connected in the weighing table (32), a rubber roller (35) is rotatably connected in the clamping plate (34), a first spring (36) is fixedly connected below the clamping plate (34), and the other end of the first spring (36) is fixedly connected to the bottom of the weighing table (32); and a suction cup supporting leg (37) is fixedly connected to the bottom of the base (31).

2. The apparatus according to claim 1, wherein The weighing assembly (3) further comprises a fixing rod (38), the fixing rod (38) is fixedly connected in the base (31), a sliding block (310) is slidably connected outside the fixing rod (38), a connecting rod (39) is rotatably connected above the sliding block (310), the other end of the connecting rod (39) is rotatably connected to the bottom of the weighing table (32), a second spring (311) is sleeved outside the fixing rod (38), one end of the second spring (311) is fixedly connected in the base (31), and the other end of the second spring (311) is fixedly connected to one side of the sliding block (310).

3. The apparatus according to claim 1, wherein The conveying assembly (4) comprises a support (41) and a conveying belt (42), the support (41) is arranged on one side of the feeding table (2), the conveying belt (42) is rotatably connected in the support (41), a cylinder (43) is rotatably connected to one side of the support (41), a pushing plate (44) is rotatably connected in the support (41), the output end of the cylinder (43) is rotatably connected with the pushing plate (44) through a connecting piece, and a guide plate (45) is fixedly connected to one side of the support (41).

4. The apparatus according to claim 3, wherein the apparatus is characterized by: The conveying assembly (4) further includes a chassis (47) arranged on one side of the support (41), and a rotating frame (48) rotationally connected inside the chassis (47), a defective product collecting box (49) is slidingly connected inside the rotating frame (48), a limiting strip (410) is fixedly connected to the outside of the defective product collecting box (49) and slidingly connected inside the rotating frame (48), a first motor (411) is fixedly connected to the outside of the chassis (47), a worm (412) is fixedly connected to the output end of the first motor (411), a worm wheel (413) is fixedly connected to the bottom of the rotating frame (48), and the worm wheel (413) is engaged with the worm (412).

5. The apparatus according to claim 1, wherein The feeding assembly (6) includes an eccentric bin (61) and a support frame (63), the support frame (63) is arranged on the other side of the feeding table (2), the eccentric bin (61) is fixedly connected inside the support frame (63), the top of the eccentric bin (61) is rotationally connected with a top cover (62), the bottom of the eccentric bin (61) is fixedly connected with a valve (64), the bottom of the valve (64) is fixedly connected with a gradually tapered diameter reducing flow guide bin (65), the bottom of the gradually tapered diameter reducing flow guide bin (65) is fixedly connected with a flow guide plate (66), the outside of the eccentric bin (61) is fixedly connected with a second motor (67), the output end of the second motor (67) is fixedly connected with a rotating rod (68), a plurality of soft rubber stirring rods (69) are fixedly connected to the outer periphery of the rotating rod (68), and a spiral slide (610) is arranged inside the gradually tapered diameter reducing flow guide bin (65).

6. The apparatus according to claim 1, wherein The injection molding machine (1) is fixedly connected with a mechanical hand (7) at the top, the feeding table (2) is fixedly connected with a three-axis servo module (9) inside, a clamping jaw for clamping nuts is slidingly connected to the outside of the three-axis servo module (9), and a photoelectric sensor for monitoring the remaining nut quantity is arranged inside the vibration disc (8).

7. The apparatus according to claim 1, wherein The feeding table (2) is fixedly connected with a placing table (10) inside, and the feeding table (2) is fixedly connected with a nut detection table (11) inside.

8. The apparatus according to claim 7, wherein the apparatus is characterized by: The feeding table (2) is fixedly connected with two visual sensors (12) for detecting the nut detection table (11) inside, and the two visual sensors (12) are oppositely mounted on both sides of the feeding table (2) inside.

9. The apparatus according to claim 4, wherein the apparatus is characterized by: The support (41) is fixedly connected with an infrared sensor (46) on one side for positioning the position of the defective product collecting box (49), the number of the defective product collecting box (49) is three, and the three defective product collecting boxes (49) correspond to different types of defective products.

10. The apparatus according to claim 5, wherein The inner diameter of the gradually tapered diameter reducing flow guide bin (65) is linearly reduced along the nut conveying direction, and the minimum inner diameter is slightly larger than the maximum outer diameter of a single nut.

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