Automatic nut implanting system

Abstract

The invention discloses an automatic nut implanting system, and relates to the technical field of nut in-mold injection molding, the automatic nut implanting system comprises an injection molding machine, a nut feeding device is arranged on one side of the injection molding machine, the nut feeding device is used for automatically arranging and feeding nuts, and a pressure maintaining mechanism is arranged on the side, away from the injection molding machine, of the nut feeding device; the pressure maintaining mechanism can conduct pressure maintaining on injection molding parts flowing out of the injection molding machine, and a flow line puller is arranged on the side, away from the nut feeding device, of the pressure maintaining mechanism and can convey the injection molding parts subjected to pressure maintaining. A transfer device is further arranged on one side of the injection molding machine, and the transfer device can transfer nuts on the nut feeding device to the injection molding machine, transfer injection molding parts on the injection molding machine to the pressure maintaining mechanism and transfer the injection molding parts subjected to pressure maintaining to the assembly line; the arrangement feeding, transferring, injection molding part implanting, pressure maintaining and conveying of the nuts can be automatically completed, the pressure maintaining work of the injection molding parts is moved out of an injection molding machine, and therefore the service time of the injection molding machine in the product injection molding process is shortened, the production period is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nut in-mold injection molding, in particular to an automatic nut implantation system. Background Art

[0002] In the manufacturing industry, in order to ensure a tight and stable connection between the nut and the injection molded part, the nut is generally accurately pre-placed at a specified position inside the injection molded part before injection molding. In the traditional manufacturing process, this step often relies on manual operation, which is not only inefficient, but also has a high risk of human error, which affects the overall efficiency of the production line and product quality.

[0003] To overcome this limitation, modern manufacturing has introduced mechanical automation technology, which uses a robot to accurately grab the nut and place it in the preset position of the injection molding machine. Subsequently, the injection molding machine performs the injection molding operation, integrating the nut with the injection molded part, thereby improving the efficiency and accuracy of nut implantation, thereby improving overall production efficiency.

[0004] However, the product after injection molding needs to go through a pressure holding process to ensure that the product does not deform during the cooling process, thereby ensuring the shaping effect and dimensional stability of the product. In the traditional production process, pressure holding is usually completed in the injection molding machine, which causes the product to stay on the injection molding machine for a longer time to complete cooling and shaping. Although this approach can ensure product quality, it undoubtedly prolongs the production cycle and reduces production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic nut implanting system, which can automatically complete the arrangement, feeding, transfer, implantation, pressure holding and transportation of nuts, and move the pressure holding work of injection molded parts outside the injection molding machine, thereby reducing the use time of the injection molding machine during the product injection molding process, shortening the production cycle and improving production efficiency.

[0006] The above-mentioned optimized structure of the present invention is realized by the following technical scheme: a nut automatic implantation system, comprising an injection molding machine, a nut feeding device is provided on one side of the injection molding machine, the nut feeding device is used for automatically arranging and feeding nuts, a pressure-holding mechanism is provided on the side of the nut feeding device away from the injection molding machine, the pressure-holding mechanism can hold pressure on the injection molded parts flowing out of the injection molding machine, and a water flow pull is provided on the side of the pressure-holding mechanism away from the nut feeding device, the water flow pull can convey the injection molded parts after holding pressure; A transfer device is also provided on one side of the injection molding machine, and the transfer device can transfer the nuts on the nut feeding device to the injection molding machine, can transfer the injection molded parts on the injection molding machine to the pressure holding mechanism, and can transfer the injection molded parts after pressure holding to the water conveyor.

[0007] In some embodiments, a visual inspection device is also included. The visual inspection device is arranged on a side of the injection molding machine close to the nut feeding device. The visual inspection device can inspect the nuts on the transfer device.

[0008] In some embodiments, the nut feeding device includes a feeding table, a vibrating plate assembly and a feeding assembly are provided on the feeding table surface, a control unit is provided at the bottom of the feeding table, and the vibrating plate assembly and the feeding assembly are both electrically connected to the control unit; The vibration plate assembly comprises a nut vibration plate, a straight vibration guide rail is connected to the nut vibration plate, the end of the straight vibration guide rail is provided with the feeding assembly, the nut vibration plate can automatically transmit the nut sorting vibration into the straight vibration guide rail, and the straight vibration guide rail can move the nuts from the nut vibration plate to the feeding assembly; The loading assembly includes a transverse cylinder, which is arranged at the end of the straight vibration guide rail. A loading block is connected to the transverse cylinder. The loading block is fitted with the straight vibration guide rail at one end face close to the straight vibration guide rail. A placement groove is provided at one end of the loading block close to the straight vibration guide rail, and the shape of the placement groove is adapted to the shape of the nut.

[0009] In some embodiments, the transfer device includes a base, on which a manipulator is provided. The manipulator can move between the injection molding machine, the nut feeding device, the pressure maintaining mechanism and the water flow puller. The manipulator is provided with a picking fixture, which can realize the grabbing and releasing of nuts and injection molded parts.

[0010] In some embodiments, the pickup fixture includes a fixed plate, a plurality of clamping cylinders are provided on the fixed plate, the clamping cylinders are connected to clamps, and the clamping cylinders can drive the clamps to clamp and release nuts; A clamping plate is provided at the bottom of the fixing plate, the clamping plate is vertically connected to the fixing plate, and a plurality of suction cups are provided on the clamping plate, and the plurality of suction cups can absorb the injection molded parts.

[0011] In some embodiments, the pressure-maintaining mechanism includes a pressure-maintaining frame, which is arranged between the nut feeding device and the water flow puller. The pressure-maintaining frame is provided with a plurality of pressure-maintaining platforms distributed at equal intervals. The pressure-maintaining frame is also provided with a plurality of lifting components, and the lifting components are arranged one-to-one corresponding to the pressure-maintaining platforms. A flipping component is provided at the bottom of the lifting component, and a pressure-maintaining component is provided at the bottom of the flipping component. The pressure-maintaining component can grab and release injection molded parts, and the flipping component is arranged above the pressure-maintaining platform.

[0012] In some embodiments, the lifting assembly includes a lifting cylinder, which is arranged on the pressure maintaining frame. The output shaft of the lifting cylinder is connected to the flipping assembly. The lifting assembly also includes two lifting sleeves, which are symmetrically arranged on both sides of the lifting cylinder and fixed on the pressure maintaining frame. A lifting rod is passed through the lifting sleeve, the bottom of the lifting rod is connected to the flipping assembly, and a connecting plate is connected to the top of the two lifting rods.

[0013] In some embodiments, the flipping assembly includes a flipping cylinder, which is fixed at the bottom of the lifting assembly, and the flipping cylinder is slidably and sealed with a piston. A connecting port is provided on the flipping cylinder, and the connecting port is connected to an external pneumatic device. The connecting port is arranged between the piston and the inner top wall of the flipping cylinder. A moving tooth bar is provided at the bottom of the piston, and a flip groove is provided at the bottom of the flipping cylinder. A flip block is provided in the flip groove, and the flip block is meshed with the moving tooth bar. A flip plate is provided at the end of the flip block away from the flip cylinder, and the pressure maintaining assembly is provided on the flip plate.

[0014] In some embodiments, the pressure-maintaining assembly includes a pressure-maintaining plate, which is arranged at the bottom of the flip assembly, and the pressure-maintaining plate is arranged corresponding to the pressure-maintaining platform. The pressure-maintaining plate is provided with a pressure-maintaining piece at one end away from the flip assembly, and a plurality of telescopic suction cups are provided at one end of the pressure-maintaining plate away from the flip assembly, and the telescopic suction cups penetrate the pressure-maintaining piece, and injection molding parts are provided on the plurality of telescopic suction cups; The pressure-maintaining component includes a bottom cover, which is arranged at the end of the pressure-maintaining plate away from the flip assembly. A slidable sliding cover is provided at the bottom of the bottom cover, and a pressure-maintaining cavity is provided between the sliding cover and the bottom cover. A plurality of pressure-maintaining springs are provided on the inner wall of the bottom cover, and a pressure-maintaining rod is provided at the end of the pressure-maintaining spring away from the bottom cover, and the pressure-maintaining rod is arranged through the sliding cover.

[0015] In some embodiments, the pressure-maintaining rod is transitionally matched with the sliding cover, the pressure-maintaining rod is a square rod, and the four edges of the pressure-maintaining rod away from the end surface of the bottom cover are all rounded.

[0016] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The present invention can automatically complete the arrangement and feeding, transfer, implantation of injection molded parts, pressure maintenance and transportation of nuts through the injection molding machine, nut feeding device, pressure maintaining mechanism, water flow pulling and transfer device, thereby reducing manpower, reducing the interference of human factors, ensuring product yield, and moving the pressure maintenance work of the injection molded parts outside the injection molding machine, thereby reducing the use time of the injection molding machine during the product injection molding process, shortening the production cycle and improving production efficiency.

[0017] The present invention can automatically detect the nuts on the transfer device through the visual detection device, thereby ensuring the accurate grasping of the nuts and improving the response speed of the system. At the same time, it can avoid the occurrence of empty nuts in the transfer device and avoid the production of nut-free injection molded parts, thereby avoiding defective products caused by lack of nut implantation, reducing waste and lowering costs.

[0018] The present invention uses a pressure-holding component to adapt the pressure-holding component to the shape of the injection molded part, thereby improving the uniformity of the pressure of the pressure-holding component on the injection molded part, avoiding deformation of the injection molded part under pressure, and improving the shaping effect and dimensional stability of the pressure-holding component on the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the safety net; Figure 3 It is a schematic structural diagram of the transfer device of the present invention; Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle; Figure 5 It is a structural schematic diagram of the nut feeding device and the control unit of the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point B in the middle; Figure 7 It is a structural schematic diagram of the pressure-maintaining mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle; Fig. 9 For the present invention Figure 7 The enlarged view of point D in the middle; Fig.10 is a cross-sectional schematic diagram of the flip assembly of the present invention; Fig.11 It is a cross-sectional schematic diagram of the pressure-maintaining member of the present invention.

[0021] In the figure: 1. Injection molding machine; 11. Fixed mold; 12. Moving mold; 2. Nut feeding device; 21. Feeding table; 22. Vibrating plate assembly; 221. Nut vibrating plate; 222. Straight vibration guide rail; 23. Feeding assembly; 231. Transverse cylinder; 232. Feeding block; 233. Placement slot; 3. Pressure holding mechanism; 31. Pressure holding frame; 32. Pressure holding table; 33. Lifting assembly; 331. Lifting cylinder; 332. Lifting sleeve; 333. Lifting rod; 334. Connecting plate; 34. Turning assembly; 341. Turning cylinder; 342. Piston; 343. Moving Bar teeth; 344, flip groove; 345, flip block; 346, flip plate; 35, pressure-maintaining assembly; 351, pressure-maintaining plate; 352, pressure-maintaining part; 3521, bottom cover; 3522, sliding cover; 3523, pressure-maintaining cavity; 3524, pressure-maintaining spring; 3525, pressure-maintaining rod; 353, telescopic suction cup; 4, water pull; 5, transfer device; 51, base; 52, manipulator; 53, fixed plate; 54, clamping cylinder; 55, clamp; 56, clamping plate; 57, suction cup; 6, visual inspection device; 7, safety net; 8, control system. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] refer to Figure 1-11 , a nut automatic implantation system, including an injection molding machine 1, a nut feeding device 2, a pressure holding mechanism 3, a water conveyor 4 and a transfer device 5, these components work together to realize the automatic implantation of nuts and the pressure holding and conveying of injection molded parts. The injection molding machine 1 includes a fixed mold 11 and a movable mold 12, and an injection cavity of the injection molded part is formed by pressing the fixed mold 11 and the movable mold 12. The injection molding machine 1 injects glue into the injection cavity to realize the formation of the injection molded part. A reserved position for nuts is reserved on the fixed mold 11, which is a prior art and will not be repeated here; by placing the nut in the reserved position, the nut is implanted in the injection molded part; the injection molding machine 1 is responsible for the injection molding of the product, and a nut feeding device 2 is provided on one side of the injection molding machine 1. The nut feeding device 2 can automatically arrange and supply nuts to ensure that the nuts can be transported to the subsequent process links in an orderly and accurate manner. The nut feeding device 2 is provided with a pressure holding mechanism 3 on the side away from the injection molding machine 1, and the pressure holding mechanism 3 can press the injection molded parts flowing out of the injection molding machine 1 Pressure is maintained to prevent the injection molded parts from deforming during the cooling process, thereby ensuring the shaping effect and dimensional stability of the product. A water flow pull 4 is provided on the side of the pressure holding mechanism 3 away from the nut feeding device 2. The water flow pull 4 can convey the injection molded parts after pressure holding for subsequent processing or quality inspection; a transfer device 5 is also provided on one side of the injection molding machine 1. The transfer device 5 can not only accurately transfer the nuts on the nut feeding device 2 to the injection molding machine 1 for implantation, but also transfer the injection molded parts completed by injection molding on the injection molding machine 1 to the pressure holding mechanism 3 for pressure holding treatment, and after the pressure holding is completed, the injection molded parts are further transferred to the water flow pull 4 for transportation. The water flow pull 4 can be a conveyor belt structure, which is a prior art and will not be repeated here.

[0027] In some embodiments, a visual inspection device 6 is further included. The visual inspection device 6 is arranged on the side of the injection molding machine 1 close to the nut feeding device 2. The visual inspection device 6 can inspect the nuts on the transfer device 5 to ensure that the nuts are accurately placed on the transfer device 5, thereby effectively avoiding production failures or product quality problems caused by incorrect nut positions. The visual inspection device 6 can be a CCD visual inspection device, that is, charge-coupled device visual inspection, which is a non-contact detection technology based on a CCD (Charge-Coupled Device) image sensor. It can capture the image of the target object through a high-precision camera, and then analyze and process the image through an image processing system, so as to achieve accurate measurement and judgment of the size, shape, color, position and other characteristics of the target object, which can improve the accuracy of the detection of the visual inspection device 6. The visual inspection device 6 can be arranged above the nut feeding device 2 to facilitate real-time monitoring of the transfer device 5's grasping of the nuts, thereby improving the response speed, and at the same time avoiding the occurrence of empty nuts in the transfer device 5, avoiding the production of injection molded parts without nuts, thereby avoiding defective products caused by lack of nut implantation and reducing waste.

[0028] In some embodiments, a safety net 7 is also included, which can isolate the working area from the operator, thereby protecting the operator.

[0029] refer to Figure 5-6 The nut feeding device 2 includes a feeding table 21, which provides a stable basic platform. A vibration plate assembly 22 and a feeding assembly 23 are arranged on the surface of the feeding table 21. The cooperation between the vibration plate assembly 22 and the feeding assembly 23 ensures the automatic and orderly supply of nuts. A control unit is arranged at the bottom of the feeding table 21. The vibration plate assembly 22 and the feeding assembly 23 are both electrically connected to the control unit. The control unit can be a micro control unit. The control unit accurately controls and coordinates the vibration plate assembly 22 and the feeding assembly 23 through electrical connection.

[0030] The vibration disk assembly 22 includes a nut vibration disk 221, to which a straight vibration guide rail 222 is connected. A loading assembly 23 is provided at the end of the straight vibration guide rail 222. The nut vibration disk 221 can automatically transmit the nut sorting vibration into the straight vibration guide rail 222. The straight vibration guide rail 222 can move the nuts from the nut vibration disk 221 to the loading assembly 23. The nut vibration disk 221 can automatically sort the nuts and transmit them to the straight vibration guide rail 222 connected thereto by vibration. The straight vibration guide rail 222 stably moves the nuts from the nut vibration disk 221 to the loading assembly 23, preparing for subsequent nut supply.

[0031] The feeding assembly 23 includes a transverse cylinder 231, which is arranged at the end of the straight vibration guide rail 222. A feeding block 232 is connected to the transverse cylinder 231. The feeding block 232 is close to the end surface of the straight vibration guide rail 222 and fits the straight vibration guide rail 222 to ensure that after the nut enters the feeding block 232, the subsequent nut is blocked by the feeding block 232 to prevent the subsequent nut from falling from the straight vibration guide rail 222. A placement groove 233 is provided at one end of the feeding block 232 close to the straight vibration guide rail 222. The shape of the placement groove 233 is adapted to the shape of the nut to ensure the stability and accuracy of the nut during the feeding process.

[0032] The loading block 232 can be driven to perform reciprocating motion laterally by the transverse cylinder 231, so that the transverse cylinder 231 makes a stroke and grabs a nut from the straight vibration guide rail 222, thereby realizing automatic, orderly and stable supply of nuts.

[0033] refer to Figure 3-4 The transfer device 5 includes a base 51, which provides a stable and reliable operating platform. A manipulator 52 is provided on the base 51. The manipulator 52 can be a five-axis manipulator or a six-axis manipulator. The manipulator 52 can move between the injection molding machine 1, the nut feeding device 2, the pressure holding mechanism 3 and the water flow pull 4, and the end of the manipulator 52 can be rotated to realize the material transfer between the injection molding machine 1, the nut feeding device 2, the pressure holding mechanism 3 and the water flow pull 4. A picking fixture is provided on the manipulator 52, which can realize the grabbing and releasing of nuts and injection molded parts.

[0034] Specifically, the pickup fixture includes a fixed plate 53, which is connected to the end of the manipulator 52. The fixed plate 53 is provided with a plurality of clamping cylinders 54, which are connected to clamps 55. The clamping cylinders 54 can drive the clamps 55 to clamp and release the nuts. The clamping cylinders 54 can ensure the stability and safety of the nuts during transportation. The bottom of the fixed plate 53 is provided with a clamping plate 56, which is vertically connected to the fixed plate 53. The clamping plate 56 is provided with a plurality of suction cups 57. The plurality of suction cups 57 can easily remove the injection molded parts from the injection molding machine or other equipment by adsorption, and stably transport them to the designated location. The adsorption force and stability of the suction cups 57 ensure that the injection molded parts will not be damaged during transportation.

[0035] By rotating the manipulator 52, the positions of the fixed plate 53 and the clamping plate 56 can be adjusted to meet the needs of the picking fixture to grab the nuts and injection molded parts at the same time, reducing the movement steps of the manipulator 52 between the injection molding machine 1, the nut feeding device 2, the pressure holding mechanism 3 and the water flow pull 4, thereby shortening the grabbing and releasing time of nuts and injection molded parts, and thus improving production efficiency.

[0036] refer to Figure 7-11The pressure-keeping mechanism 3 includes a pressure-keeping frame 31, which is arranged between the nut feeding device 2 and the water flow pull 4. The pressure-keeping frame 31 is provided with a plurality of pressure-keeping platforms 32 distributed at equal intervals. The pressure-keeping platforms 32 provide a solid foundation for subsequent pressure-keeping operations. The pressure-keeping frame 31 is also provided with a plurality of lifting components 33, which are arranged one-to-one with the pressure-keeping platforms 32 to ensure the independent operation of each pressure-keeping platform 32. A turning component 34 is provided at the bottom of the lifting component 33, and a pressure-keeping component 35 is provided at the bottom of the turning component 34. The pressure-keeping component 35 can grab and release the injection molded parts. The turning component 34 is arranged above the pressure-keeping platform 32, and the pressure-keeping component 35 is turned over by the turning component 34, thereby turning over the injection molded parts on the pressure-keeping component 35, and the injection molded parts are driven to descend to the pressure-keeping platform 32 through the action of the lifting component 33, thereby realizing the pressure holding of the injection molded parts.

[0037] In some embodiments, the lifting assembly 33 includes a lifting cylinder 331, which is firmly mounted on the pressure-maintaining frame 31. The output shaft of the lifting cylinder 331 is connected to a flipping assembly 34. In order to ensure the stability and accuracy of the lifting process, the lifting assembly 33 also includes two lifting sleeves 332. The two lifting sleeves 332 are symmetrically arranged on both sides of the lifting cylinder 331 and fixed on the pressure-maintaining frame 31. The lifting sleeves 332 are penetrated by a lifting rod 333. The bottom of the lifting rod 333 is connected to the flipping assembly 34. The tops of the two lifting rods 333 are connected to a connecting plate 334 to form a stable overall structure.

[0038] In some embodiments, the flip assembly 34 includes a flip cylinder 341, which is fixed at the bottom of the lifting assembly 33, and a piston 342 is slidably and sealedly arranged inside the flip cylinder 341, so that the piston 342 always maintains a sealed state with the flip cylinder 341 while sliding in the flip cylinder 341. The flip cylinder 341 is provided with a connection port, which is connected to an external pneumatic device, and the external pneumatic device delivers or extracts gas into the flip cylinder 341 through the connection port, thereby providing the piston 342 with power to rise and fall in the flip cylinder 341. The connection port is arranged between the piston 342 and the inner top wall of the flip cylinder 341 to ensure the transmission efficiency and stability of power; the bottom of the piston 342 is provided with a moving tooth 343, the bottom of the flip cylinder 341 is provided with a flip groove 344, and a flip block 345 is arranged in the flip groove 344, and the flip block 345 is meshed with the moving tooth 343, and a flip plate 346 is arranged at the end of the flip block 345 away from the flip cylinder 341, and a pressure-maintaining assembly 35 is arranged on the flip plate 346.

[0039] When the external pneumatic device delivers air to the connecting port, the air pressure between the piston 342 and the top wall of the flip cylinder 341 increases, forcing the piston 342 to move downward, thereby driving the moving tooth 343 to move downward, and the engagement of the moving tooth 343 with the flip block 345 drives the flip block 345 to rotate, thereby driving the flip plate 346 and the pressure holding assembly 35 to flip together, thereby realizing the flipping of the injection molded part, and then driving the injection molded part through the lifting cylinder 331, so that the injection molded part is attached to the pressure holding table 32, thereby realizing the pressure holding of the injection molded part.

[0040] In some embodiments, the pressure maintaining assembly 35 includes a pressure maintaining plate 351, which is arranged at the bottom of the flipping assembly 34, and the pressure maintaining plate 351 is arranged corresponding to the pressure maintaining platform 32. A pressure maintaining part 352 is provided at one end of the pressure maintaining plate 351 away from the flipping assembly 34, and a plurality of telescopic suction cups 353 are provided at one end of the pressure maintaining plate 351 away from the flipping assembly 34. The telescopic suction cups 353 penetrate the pressure maintaining part 352, and injection molded parts are provided on the plurality of telescopic suction cups 353. When the telescopic suction cups 353 are extended, the telescopic suction cups 353 protrude from the pressure maintaining part 352, and the injection molded parts are sucked by the suction action of the plurality of telescopic suction cups 353. When the telescopic suction cups 353 are retracted, the telescopic suction cups 353 and the pressure maintaining part 352 form an embedded structure, thereby ensuring the flatness of the bottom surface of the pressure maintaining part 352, and further ensuring the pressure maintaining effect of the pressure maintaining part 352 on the injection molded parts.

[0041] Specifically, the pressure maintaining component 352 includes a bottom cover 3521, which is arranged at the end of the pressure maintaining plate 351 away from the flip assembly 34. A slidable sliding cover 3522 is arranged at the bottom of the bottom cover 3521. The cross-section of the bottom cover 3521 can be groove-shaped. The top of the sliding cover 3522 is arranged in a ring groove. The bottom cover 3521 and the sliding cover 3522 are plugged together. A convex ring is arranged at the bottom of the bottom cover 3521, and a limiting groove is arranged at the top of the sliding cover 3522. The aperture of the limiting groove is smaller than the diameter of the convex ring, so that the bottom cover 3521 and the sliding cover 3522 can slide while avoiding the separation of the bottom cover 3521 and the sliding cover 3522 through the restraining effect between the convex ring and the limiting groove.

[0042] In order to improve the uniformity of the force distribution of the pressure-maintaining member 352 on the injection molded part, thereby improving the pressure-maintaining effect of the pressure-maintaining member 352 on the injection molded part, the structural design of the pressure-maintaining member 352 enables the bottom of the pressure-maintaining member 352 to self-adjust the force distribution according to the external shape of the injection molded part. A pressure-maintaining cavity 3523 is provided between the sliding cover 3522 and the bottom cover 3521, and a plurality of pressure-maintaining springs 3524 are provided on the inner wall of the bottom cover 3521. A pressure-maintaining rod 3525 is provided at one end of the pressure-maintaining spring 3524 away from the bottom cover 3521, and the pressure-maintaining rod 3525 is arranged through the sliding cover 3522.

[0043] Specifically, when the injection molded part is placed between the pressure-maintaining part 352 and the pressure-maintaining platform 32, the pressure-maintaining plate 351 applies a force to the bottom cover 3521. Under the action of the force of the bottom cover 3521, it moves toward the injection molded part. The bottom cover 3521 moves, driving the pressure-maintaining spring 3524 and the pressure-maintaining rod 3525 to move toward the injection molded part. When the end of the pressure-maintaining rod 3525 is attached to the surface of the injection molded part, the injection molded part applies a reverse force to the pressure-maintaining rod 3525. The pressure-maintaining spring 3524 acts in the opposite direction of the bottom cover 3521 and the injection molded part. Under the application of force, compression deformation occurs. Different height points on the surface of the injection molded part have different magnitudes of reverse force on the pressure-maintaining rod 3525, which results in different amounts of compression deformation of the pressure-maintaining spring 3524. This causes the ends of multiple pressure-maintaining rods 3525 to present a structure with the same shape as the surface of the injection molded part. While the pressure-maintaining rods 3525 apply pressure to the injection molded part, the pressure-maintaining rods 3525 constrain the protruding parts of the injection molded part to avoid deformation of the protruding parts of the injection molded part under pressure, thereby improving the shaping effect and dimensional stability of the pressure-maintaining component 35 on the product.

[0044] In some embodiments, the pressure-maintaining rod 3525 is transitionally matched with the sliding cover 3522, and the pressure-maintaining spring 3524 is deformed by force, so that when the pressure-maintaining rod 3525 moves in the sliding cover 3522, the connection between the pressure-maintaining rod 3525 and the pressure-maintaining spring 3524 has a certain offset, so that when the end of the pressure-maintaining rod 3525 touches the protrusion on the surface of the injection molded part, there is a certain amount of deformation at a certain position, so that the rod surfaces of the multiple pressure-maintaining rods 3525 are more closely fitted with the protruding side of the surface of the injection molded part, thereby improving the pressure-maintaining rod 3525 against the protruding part of the surface of the injection molded part. The restraining performance can further improve the anti-deformation ability of the surface of the injection molded part; the pressure maintaining rod 3525 can be a square rod, which can increase the contact area between the rod surface of the pressure maintaining rod 3525 and the protruding side of the injection molded part, thereby enhancing the anti-deformation ability of the pressure maintaining rod 3525 on the protruding part of the injection molded part surface; the four edges of the pressure maintaining rod 3525 away from the end face of the bottom cover 3521 are all rounded, which can make the pressure maintaining rod 3525 smoothly contact with the protruding surface of the injection molded part, thereby avoiding the edges of the pressure maintaining rod 3525 from damaging the injection molded part, thereby affecting the quality of the injection molded part.

[0045] In some embodiments, a control system 8 is also included. The control system 8 is electrically connected to the injection molding machine 1, the nut feeding device 2, the pressure holding mechanism 3, the water flow pull 4, the transfer device 5 and the visual inspection device 6. The control system 8 may include a display, an input keyboard and other devices. The corresponding parameters can be input through the input keyboard to achieve automatic control of the entire nut automatic implantation system. The specific structure and specific control principle of the control system 8 can be adjusted according to actual needs. This is a prior art and will not be repeated here.

[0046] The specific working principle is as follows: During specific operation, the nut vibration plate 221 transmits the nut sorting vibration into the straight vibration guide rail 222, and the straight vibration guide rail 222 moves the nuts to the placement slot 233 of the loading assembly 23. The traverse cylinder 231 drives the loading block 232 carrying the nuts to move to the transfer device, waiting for the robot 52 to grab, and at the same time, the end surface of the loading block 232 constrains the nuts at the end of the straight vibration guide rail 222 to prevent the nuts from falling from the straight vibration guide rail 222.

[0047] The manipulator 52 moves to the transfer position of the nut, and the fixed plate 53 is made vertical by the rotation of the manipulator 52. The clamp 55 is driven by the clamping cylinder 54 to clamp the nut in the placement groove 233 of the loading block 232. Then the manipulator 52 drives the nut to move above the injection molding machine 1. During the movement, the visual inspection device 6 is used to detect whether there is a nut on the transfer device 5 to ensure the accurate grasping of the nut.

[0048] The manipulator 52 rotates to change the positions of the fixed plate 53 and the clamping plate 56, so that the clamping plate 56 is vertical and faces the fixed mold 11, and the injection molded part on the fixed mold 11 is sucked by the suction cup 57, and then the manipulator 52 rotates to make the fixed plate 53 vertical, align the nut with the nut reserved position of the fixed mold 11, and the clamping cylinder 54 drives the clamp 55 to release the nut, so that the nut is placed in the nut reserved position of the fixed mold 11, and the manipulator 52 moves to the pressure holding station, and the injection molding machine 1 moves the movable mold 12 at the same time. The movable mold 12 is pressed with the fixed mold 11, and the injection molding is started to realize the implantation of the nut.

[0049] After the robot 52 moves to the pressure holding station, the robot 52 rotates to make the clamping plate 56 vertical and parallel to the pressure holding component 35, the telescopic suction cup 353 extends out and fits on the surface of the injection molded part, and the suction cup 57 releases the injection molded part. The robot 52 moves to above the pressure holding platform 32, the robot 52 rotates to make the clamping plate 56 horizontal, and the injection molded part after pressure holding is sucked by the suction cup 57. The robot 52 moves to above the water flow pull 4, the suction cup 57 releases the injection molded part, so that the injection molded part after pressure holding follows the water flow pull 4 to the next station, and the robot 52 returns to the nut clamping station for the next round of operation.

[0050] After the telescopic suction cup 353 absorbs the injection-molded part, the piston 342 moves upward in the flip cylinder 341 under the drive of the external pneumatic device, so that the flip block 345 drives the injection-molded part to flip to a horizontal state, and the lifting cylinder 331 drives the flip assembly 34 and the injection-molded part to descend, so that the injection-molded part is attached to the pressure-holding table 32. During this process, the telescopic suction cup 353 slowly retracts, and the pressure holding of the injection-molded part is achieved through the joint action of the lifting cylinder 331 and the pressure-holding table 32.

[0051] After the pressure holding is completed, the telescopic suction cup 353 extends out to absorb the injection molded part after pressure holding, and the lifting cylinder 331 drives the pressure holding component 35, the flip component 34 and the injection molded part to rise to the set position. The external pneumatic device acts in the opposite direction to move the piston 342 downward in the flip groove 344, and the flip plate 346 is flipped to a horizontal state by the engagement of the moving tooth 343 with the flip block 345, waiting for the robot 52 to move it to the water flow pull 4.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nut automatic implantation system, characterized in that: The invention comprises an injection molding machine (1), wherein a nut feeding device (2) is provided on one side of the injection molding machine (1), wherein the nut feeding device (2) is used for automatically arranging and feeding nuts, wherein a pressure-maintaining mechanism (3) is provided on a side of the nut feeding device (2) away from the injection molding machine (1), wherein the pressure-maintaining mechanism (3) can maintain pressure on injection molded parts flowing out of the injection molding machine (1), and wherein a water flow pull (4) is provided on a side of the pressure-maintaining mechanism (3) away from the nut feeding device (2), wherein the water flow pull (4) can transport the injection molded parts after pressure maintenance; A transfer device (5) is also provided on one side of the injection molding machine (1). The transfer device (5) can transfer the nuts on the nut feeding device (2) to the injection molding machine (1), can transfer the injection molded parts on the injection molding machine (1) to the pressure holding mechanism (3), and can transfer the injection molded parts after pressure holding to the water conveyor (4).

2. The automatic nut implantation system according to claim 1, characterized in that: It also comprises a visual inspection device (6), which is arranged on a side of the injection molding machine (1) close to the nut feeding device (2), and the visual inspection device (6) can inspect the nuts on the transfer device (5).

3. The automatic nut implantation system according to claim 1, characterized in that: The nut feeding device (2) comprises a feeding table (21), a vibrating plate assembly (22) and a feeding assembly (23) are provided on the surface of the feeding table (21), a control unit is provided at the bottom of the feeding table (21), and the vibrating plate assembly (22) and the feeding assembly (23) are both electrically connected to the control unit; The vibration plate assembly (22) comprises a nut vibration plate (221), the nut vibration plate (221) is connected to a straight vibration guide rail (222), the end of the straight vibration guide rail (222) is provided with the feeding assembly (23), the nut vibration plate (221) can automatically transmit nut sorting vibration into the straight vibration guide rail (222), and the straight vibration guide rail (222) can move nuts from the nut vibration plate (221) to the feeding assembly (23); The loading assembly (23) comprises a transverse cylinder (231), wherein the transverse cylinder (231) is arranged at the end of the straight vibration guide rail (222), and a loading block (232) is connected to the transverse cylinder (231), and an end surface of the loading block (232) close to the straight vibration guide rail (222) is in contact with the straight vibration guide rail (222), and a placement groove (233) is provided at one end of the loading block (232) close to the straight vibration guide rail (222), and the shape of the placement groove (233) is adapted to the shape of the nut.

4. The automatic nut implantation system according to claim 1, characterized in that: The transfer device (5) comprises a base (51), on which a manipulator (52) is provided. The manipulator (52) can move between the injection molding machine (1), the nut feeding device (2), the pressure-maintaining mechanism (3) and the water flow puller (4). The manipulator (52) is provided with a picking fixture, which can realize the picking and releasing of nuts and injection molded parts.

5. The automatic nut implantation system according to claim 4, characterized in that: The picking fixture comprises a fixing plate (53), a plurality of clamping cylinders (54) are provided on the fixing plate (53), the clamping cylinders (54) are connected to clamps (55), and the clamping cylinders (54) can drive the clamps (55) to clamp and release nuts; A clamping plate (56) is provided at the bottom of the fixing plate (53), the clamping plate (56) being vertically connected to the fixing plate (53), and a plurality of suction cups (57) are provided on the clamping plate (56), and the plurality of suction cups (57) can absorb the injection molded parts.

6. The automatic nut implantation system according to claim 1, characterized in that: The pressure-maintaining mechanism (3) comprises a pressure-maintaining frame (31), the pressure-maintaining frame (31) being arranged between the nut feeding device (2) and the water flow pull (4), the pressure-maintaining frame (31) being provided with a plurality of pressure-maintaining platforms (32) distributed at equal intervals, the pressure-maintaining frame (31) being further provided with a plurality of lifting assemblies (33), the lifting assemblies (33) being arranged in a one-to-one correspondence with the pressure-maintaining platforms (32), the lifting assemblies (33) being provided with a flipping assembly (34) at the bottom, the flipping assembly (34) being provided with a pressure-maintaining assembly (35) at the bottom, the pressure-maintaining assembly (35) being capable of grabbing and releasing injection molded parts, and the flipping assembly (34) being arranged above the pressure-maintaining platform (32).

7. The automatic nut implantation system according to claim 6, characterized in that: The lifting assembly (33) comprises a lifting cylinder (331), the lifting cylinder (331) being arranged on the pressure-maintaining frame (31), the output shaft of the lifting cylinder (331) being connected to the flipping assembly (34), the lifting assembly (33) further comprising two lifting sleeves (332), the two lifting sleeves (332) being symmetrically arranged on both sides of the lifting cylinder (331) and fixedly arranged on the pressure-maintaining frame (31), the lifting sleeves (332) being provided with a lifting rod (333) penetrating therethrough, the bottom of the lifting rod (333) being connected to the flipping assembly (34), and the tops of the two lifting rods (333) being connected to a connecting plate (334).

8. The automatic nut implantation system according to claim 6, characterized in that: The overturning assembly (34) comprises an overturning cylinder (341), wherein the overturning cylinder (341) is fixedly arranged at the bottom of the lifting assembly (33), and a piston (342) is slidably and sealedly provided on the overturning cylinder (341), and a connecting port is provided on the overturning cylinder (341), and the connecting port is connected to an external pneumatic device, and the connecting port is arranged between the piston (342) and the inner top wall of the overturning cylinder (341), and a moving tooth bar (343) is provided at the bottom of the piston (342), and a overturning groove (344) is provided at the bottom of the overturning cylinder (341), and a overturning block (345) is provided in the overturning groove (344), and the overturning block (345) is meshed with the moving tooth bar (343), and a overturning plate (346) is provided at one end of the overturning block (345) away from the overturning cylinder (341), and the pressure-maintaining assembly (35) is provided on the overturning plate (346).

9. The automatic nut implantation system according to claim 6, characterized in that: The pressure-maintaining component (35) comprises a pressure-maintaining plate (351), the pressure-maintaining plate (351) being arranged at the bottom of the flipping component (34), the pressure-maintaining plate (351) being arranged corresponding to the pressure-maintaining platform (32), a pressure-maintaining part (352) being arranged at one end of the pressure-maintaining plate (351) away from the flipping component (34), a plurality of telescopic suction cups (353) being arranged at one end of the pressure-maintaining plate (351) away from the flipping component (34), the telescopic suction cups (353) penetrating the pressure-maintaining part (352), and injection molded parts being arranged on the plurality of telescopic suction cups (353); The pressure-maintaining member (352) comprises a bottom cover (3521), wherein the bottom cover (3521) is arranged at one end of the pressure-maintaining plate (351) away from the flip assembly (34), a slidable sliding cover (3522) is arranged at the bottom of the bottom cover (3521), a pressure-maintaining cavity (3523) is arranged between the sliding cover (3522) and the bottom cover (3521), a plurality of pressure-maintaining springs (3524) are arranged on the inner wall of the bottom cover (3521), and a pressure-maintaining rod (3525) is arranged at one end of the pressure-maintaining spring (3524) away from the bottom cover (3521), and the pressure-maintaining rod (3525) is arranged to pass through the sliding cover (3522).

10. The automatic nut implantation system according to claim 9, characterized in that: The pressure-maintaining rod (3525) is transitionally matched with the sliding cover (3522); the pressure-maintaining rod (3525) is a square rod; and the four edges of the end surface of the pressure-maintaining rod (3525) away from the bottom cover (3521) are all rounded.

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