A multi-cavity slicing rotary scraping automatic forming machine unit

Abstract

The present invention relates to a multi-cavity slice rotary scraper automatic forming unit, including an assembly line platform, the assembly line platform includes two rows of molds arranged in a line, the assembly line platform is provided with a driving device, a weighing and feeding device, a rotary scraper device, a mesh delivery device, a trademark delivery device, a core ring delivery device, a multi-pressure head hydraulic press, a disc pressure head wax coating device, a demoulding device, and also includes a control system, the assembly line platform is provided with A~H areas, the control system includes a PLC controller and an industrial computer, and the PLC controller is connected to the industrial computer for communication. The present invention sets production devices of each process along the assembly line platform, sets a control system to adjust the beat of the production devices of each process through a driving device, improves the degree of production automation, adopts weighing and discharging vibration feeding, improves the fineness and accuracy of feeding, realizes balanced scraping through a scraper mechanism, and improves work efficiency while improving the yield rate.

Description

Technical Field

[0001] The invention relates to the field of resin slice grinding wheel manufacturing, and in particular to a multi-cavity slice rotary scraping automatic forming machine unit. Background Art

[0002] As one of the tools for industrial production, fiber-reinforced resin thin-slice grinding wheels play an important role in the cutting and grinding of metal and non-metal materials in many fields. Due to its advantages such as fast cutting speed, high cutting size accuracy and surface flatness, strong adaptability to cutting objects, easy use, and low cost, it is still an irreplaceable important tool.

[0003] The basic process of manufacturing resin thin-sheet grinding wheels is: mixing materials, pressing, hardening, and inspection. Among them, the main process equipment of the molding process is the resin thin-sheet grinding wheel molding unit, whose function is to evenly place the mixed granular grinding wheel molding material into the mold and scrape it flat, and then use a hydraulic press to apply a certain pressure to make the loose granular material in the mold change in volume to achieve the required density, thereby forming a grinding wheel blank with a certain strength, size and shape, and no external and internal defects. The molding process determines the size, shape, density and density uniformity of the grinding wheel and the rotation balance during use. It is an important process in the grinding wheel manufacturing process, and it is also an important process with the largest equipment investment, the most human resources and the most production space. Therefore, how to improve the yield rate and work efficiency has become a research direction for automated production.

[0004] At present, there is a large gap in the domestic resin thin-sheet grinding wheel molding equipment, and some manufacturers need to import equipment from abroad, such as South Korea's BANDO and Italy's Maternini. The equipment of South Korean manufacturers adopts a scraping method in which the mold rotates and the scraper rises and falls slightly. The characteristics of this method are fixed weight feeding, rotation and flattening, consistent unit weight of grinding wheel products, low requirements for the production environment, and it can be applied to semi-hot pressing and cold pressing processes. The equipment structure is relatively simple. The disadvantage of this molding method is that the molding material is distributed in the mold in a spiral surface, and the movement time is long. In addition, the centrifugal force is easy to produce coarse and fine material separation, resulting in uneven product density and poor appearance quality.

[0005] The scraping method adopted by Italian equipment is to fix the cavity depth (volume) and use a scraper filled with molding material to reciprocate on the mold to complete the scraping. This molding method ensures that the molding material is distributed in the mold in a transient manner, is not prone to coarse and fine segregation, has good product density uniformity, and is easy to achieve a multi-cavity structure. However, Italian equipment all uses a mold frame structure with precision column guidance, which is very expensive and cannot be used in hot pressing processes due to the limitations of the mold frame structure, so its use is limited.

[0006] The multi-station grinding wheel forming unit has been widely used in China, and its technology is highly mature. Its principle is to decompose the grinding wheel forming process into multiple stations to simplify the unit action. The driving device carries the mold and makes it enter each working position in turn. The main and auxiliary machines and operators of each station perform corresponding operations on the mold entering the station. Each station can complete the forming of one (or two) grinding wheels. It only takes a few seconds or more than ten seconds to complete the forming of a grinding wheel. The production efficiency is very high. At present, it has become the most important forming equipment in the industry. Improving the multi-station forming unit, improving the yield rate, and further improving the operating efficiency are of great significance in the current environment of large production demand. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a multi-cavity slicing rotary scraping automatic forming unit, wherein production devices for each process are arranged along the assembly line platform, and a control system is arranged to adjust the rhythm of the production devices for each process through a driving device to improve the degree of production automation, and adopts weighing, discharging and vibration feeding to improve the fineness and accuracy of feeding, and balanced scraping is achieved through a scraper mechanism, thereby improving work efficiency while improving the yield rate.

[0008] In order to achieve the above object, the present invention provides a multi-cavity slice rotary scraper automatic forming unit, the technical solution is:

[0009] The assembly line platform includes two rows of molds arranged vertically in a line, and the assembly line platform is provided with a driving device, a weighing and feeding device, a rotating scraping device, a mesh feeding device, a trademark feeding device, a core ring feeding device, a multi-pressure head hydraulic press, a disc pressure head wax coating device, a demoulding device, and a control system;

[0010] The assembly line platform is provided with A to H areas, the driving device is provided in the A area of ​​the assembly line platform, the driving device is used to drive the multiple molds to move, the weighing and feeding device is provided in the B area, the weighing and feeding device is used to weigh the molding material and feed it into the mold, the weighing and feeding device includes a weight measuring module and a discharge module, and the weight measuring module and the discharge module are electrically connected to the control system;

[0011] The rotary scraper device is arranged in area C, and is used to drive the mold to rotate and scrape the molding material, and the rotary scraper device is electrically connected to the control system;

[0012] The mesh delivery device is arranged in the D area, and the mesh delivery device includes a picking mechanism and a mesh changing mechanism. The mesh delivery device is used to deliver the mesh to the molding material in the mold, and the mesh delivery device is electrically connected to the control system;

[0013] The core ring delivery device is arranged in the E area, and includes a ferromagnetic adsorption mechanism. The core ring delivery device is used to place the core ring in place. The trademark delivery device and the core ring delivery device are electrically connected to the control system.

[0014] The trademark placement device is arranged in the F area, and the trademark placement device includes a negative pressure adsorption mechanism, and the trademark placement device is used to place the trademark into the mold;

[0015] The multi-head hydraulic press is arranged in the G area, and is used for extruding the molding material in the mold, and the multi-head hydraulic press is electrically connected to the control system;

[0016] The demoulding device is arranged in the H area, and is used to demould the finished product, and the demoulding device is electrically connected to the control system;

[0017] The control system includes a PLC controller and an industrial computer, and the PLC controller and the industrial computer are communicatively connected.

[0018] The assembly line platform is equipped with A~H areas, which use driving devices and combined with control systems to achieve smooth transfer and precise positioning of the mold. Multiple weighing modules and discharge modules are set to meet the needs of multi-station production. At the same time, auxiliary finished materials are added to the finished materials in the mold through mesh delivery devices, trademark delivery devices, and core ring delivery devices. Finally, the plastic blank is pressed by a multi-head hydraulic press, and the demoulding device is used to demould the grinding wheel blank. The whole process has a high degree of automation, high production efficiency, precise control of grinding wheel blank production, and high equipment yield.

[0019] Further, the discharging module includes a vibrating tray, a linear vibrating feeder, a storage trough and a door-opening cylinder, the weighing module includes a weighing hopper, a weighing sensor and a level sensor, the level sensor is arranged inside the weighing hopper, the level sensor and the weighing sensor are connected to the AI ​​module of the PLC controller, the vibrating tray and the linear vibrating feeder are connected to the DO module of the PLC controller, a storage trough is arranged at the lower part of the outlet of the vibrating tray, the lower opening position of the storage trough is connected to the linear vibrating feeder, the linear vibrating feeder includes a square tube, a weighing hopper is arranged at the lower part of the linear vibrating feeder, a door-opening cylinder is arranged at the lower part of the weighing hopper, a discharging solenoid valve is arranged on the door-opening cylinder, and the coil of the discharging solenoid valve is electrically connected to the PLC controller;

[0020] The linear vibration feeder adopts PID control.

[0021] The weighing and feeding device is controlled by the PLC controller, material level sensor and weighing sensor to feed materials. The feeding speed of the linear vibration feeder is adjusted according to the material level sensor. The feeding amount is controlled by the weighing sensor. When the weight detected by the weighing sensor reaches the set value of the PLC controller, the PLC controller controls the door opening cylinder to feed the mold to ensure uniform density of the grinding wheel and can feed multiple molds at the same time.

[0022] Furthermore, the rotary scraper device includes a servo electric cylinder, a rotating table, a scraper mechanism and a fixed frame. The rotating table is arranged below the horizontal plane of the assembly line platform where the mold is placed. The upper part of the rotating table is an annular structure, and the lower part is a cylindrical structure. There are two rotary tables. The lower parts of the two rotary tables are connected to a drive motor through a synchronous belt. The drive motor is fixed to the fixed frame and electrically connected to the PLC controller. A servo electric cylinder is arranged on the upper part of the fixed frame. The lower end of the servo electric cylinder is connected to the scraper mechanism. There are two scraper mechanisms. The installation position of the scraper mechanism corresponds to the rotating table. The control end of the servo electric cylinder is connected to the DO module of the PLC controller, and the servo electric cylinder drives the scraper mechanism to move.

[0023] The mold is rotated by a rotating table, and the driving motor rotates the two rotating tables synchronously through a synchronous belt. The servo electric cylinder is used to realize the precise displacement of the scraper mechanism to contact the mold for scraping. The scraping process is smooth, the equipment is easy to adjust, and grinding wheels of different sizes can be produced.

[0024] Furthermore, the mesh delivery device further comprises a first step horizontal moving mechanism, the first step horizontal moving mechanism is arranged above the assembly line platform and vertically arranged with the assembly line platform, the first step horizontal moving mechanism comprises a slide rail, a slider and a stepper motor, the first step horizontal moving mechanism drives the picking mechanism to move to the mesh changing mechanism position,

[0025] A pick-up mechanism is provided at the lower part of the slider, and the pick-up mechanism includes a screen-removing assembly and a tape. A second servo electric cylinder is provided between the screen-removing assembly and the slider, and the screen-removing assembly is used to fix the tape. The tape moves up and down along with the second servo electric cylinder and the screen-removing assembly.

[0026] The net changing mechanism comprises a plurality of placement plates, each of which is a disc-shaped structure, a net threading rod is arranged in the middle of the placement plate, the net threading rod is a cylindrical structure, the bottom end of the net threading rod is fixed to the placement plate, and meshes of different sizes are placed on the plurality of placement plates respectively;

[0027] A frequency converter is provided between the first step horizontal moving mechanism and the PLC controller, the frequency converter is connected to the DO module of the PLC controller, and the control end of the second servo electric cylinder is electrically connected to the PLC controller.

[0028] The horizontal moving mechanism is adjusted by the PLC controller to drive the picking mechanism to move to the screen changing mechanism position. Screens of different sizes are set at the screen changing mechanism position. The picking mechanism is moved to the placement position where the screen should be selected by accurately controlling the displacement of the horizontal moving mechanism. The tape is sticky and adheres to the screen. When the screen is located at the mold position, the unscreening component performs the unscreening operation and puts the screen into the mold. In addition, the tape is counted and controlled to change the tape interval. The stepper motor drive is used to improve the beat speed and the stability of picking.

[0029] Furthermore, the trademark placement device includes a trademark placement plate and a trademark centering rod, a pickup head assembly and a negative pressure module, the trademark placement plate is a disc-shaped structure, a cylindrical trademark centering rod is fixedly arranged in the middle of the trademark placement plate, and an ejection cylinder is fixedly arranged at the lower part of the trademark placement plate;

[0030] The pickup head assembly includes an accordion-type suction cup, which is connected to a negative pressure module. The negative pressure module includes a negative pressure sensor and a negative pressure generator. The negative pressure sensor is connected to an AI module of a PLC controller, and the negative pressure generator is electrically connected to the PLC controller.

[0031] A second stepping horizontal moving mechanism is arranged at the upper end of the pickup head assembly and the negative pressure module, and the second stepping horizontal moving mechanism drives the pickup head assembly and the negative pressure module to move horizontally. The second stepping horizontal moving mechanism is connected to the PLC controller through a frequency converter.

[0032] First, the second stepper horizontal moving mechanism moves the picking head assembly and the negative pressure module to the trademark centering rod position, and the ejector cylinder moves the trademark placement plate with the trademark close to the picking head assembly. When the negative pressure module is working, the picking head assembly will suck up the trademark. When the trademark is sucked up, the detection value of the negative pressure sensor reaches the set value of the PLC controller, indicating that the trademark is sucked up. The second stepper horizontal moving mechanism drives the picking head group to reset (directly above the mold), and the PLC controller controls the negative pressure module to cut off the power, and the trademark automatically falls off into the mold.

[0033] Furthermore, the core ring delivery device includes a vibrating feeding tray, a core ring linear conveyor belt and a ferromagnetic adsorption mechanism, the core ring linear conveyor belt is arranged at the outlet position of the vibrating feeding tray, a picking position is arranged at the end of the core ring linear conveyor belt, and the ferromagnetic adsorption mechanism includes a third servo electric cylinder and a magnet, and the third servo electric cylinder drives the magnet to move up and down.

[0034] The upper end of the third servo electric cylinder is provided with a third stepping horizontal moving mechanism, and the third stepping horizontal moving mechanism drives the third servo electric cylinder and the ferromagnetic adsorption mechanism to move horizontally.

[0035] The third stepping horizontal moving mechanism is connected to the PLC controller via a frequency converter, and the control end of the third servo electric cylinder is electrically connected to the PLC controller.

[0036] The core ring delivery device adjusts the core ring to two different states of positive / reverse according to the process requirements through the vibrating feeding plate, and transports it to the core ring linear conveyor belt in sequence, and then the core ring is transported to the pick-up position in sequence by the core ring linear conveyor belt. The adsorption mechanism moves downward to the core ring position through the third servo electric cylinder and picks up the core ring by magnetic attraction. And through the third stepping horizontal moving mechanism, it moves horizontally to the corresponding mold core rod. The adsorption mechanism pushes the core ring downward to the bottom of the core rod chamfer, and then returns. The core ring is left in the mold under the action of the core rod, thereby realizing the automatic action of automatically delivering the core ring. The stepper motor is easy to adjust and has high displacement accuracy.

[0037] Furthermore, the multi-pressure head hydraulic press includes a floating cylinder body, a hydraulic oil chamber, a floating piston and a pressure head. The floating cylinder body is provided with a plurality of floating piston mounting holes. The top surfaces of the floating piston mounting holes are connected to form a hydraulic oil chamber. The pressure head is fixedly arranged at the bottom of the floating piston. A hydraulic oil tank is arranged in the hydraulic oil chamber. An electromagnetic valve is arranged between the hydraulic oil tank and the hydraulic oil chamber. The electromagnetic valve is electrically connected to the PLC controller.

[0038] The multi-head hydraulic press can achieve the same molding pressure for products of different thicknesses. It can avoid the problem of uneven pressure on the product after molding due to uneven thickness of molding materials or auxiliary materials, resulting in uneven product thickness and density. It can also avoid the problem of defective products in a certain mold during the production process of multiple cavities, which affects the pressing and molding of other qualified products. It can improve manufacturing efficiency and yield rate.

[0039] Furthermore, the demoulding device includes a fourth stepping horizontal moving mechanism, a blank suction mechanism, and a pressure head transport mechanism, the blank suction mechanism includes a negative pressure blank suction mechanism and an air claw device, and the fourth stepping horizontal moving mechanism is used to drive the pressure head transport mechanism to move to the blank suction position for demoulding;

[0040] The fourth stepping horizontal moving mechanism is connected to the PLC controller via a frequency converter, and the negative pressure blank suction and air gripper device are electrically connected to the PLC controller.

[0041] The fourth stepping horizontal moving mechanism adopts PLC controller combined with frequency converter control to realize the blank suction movement. The negative pressure blank suction is suitable for 1~3mm slicing products, and the air claw hole support mechanism is suitable for 4~6mm grinding products.

[0042] Furthermore, the driving device includes two fourth servo electric cylinders respectively arranged at two ends of the assembly line platform, and the control end of the fourth servo electric cylinder is electrically connected to the PLC controller;

[0043] It improves work efficiency and facilitates the rational planning of factory space.

[0044] Through the above technical solution, the beneficial effects of the present invention are:

[0045] (1) The present invention is provided with a control system, which coordinates and controls a driving device, a weighing and feeding device, a rotating scraping device, a mesh feeding device, a trademark feeding device, a core ring feeding device, a multi-pressure head hydraulic press, a disc pressure head wax coating device, and a demoulding device, so as to ensure that the mechanical parts operate in an orderly, safe, and precise manner. Reliable automatic auxiliary machines are used to realize the automation of the whole machine. Only 1 to 2 operators are required for the whole machine, and there is no need to rely on the proficiency of the workers to make blanks. The whole machine has high working precision, which improves the work efficiency and the yield rate.

[0046] (2) The present invention improves the existing equipment by respectively improving the equipment for feeding, scraping, placing the net, baking the net, pressing the net, placing the trademark, placing the core ring, pressing and demoulding. The mold in the assembly line platform is driven by the driving device to make intermittent rotary motion and automatically rotates to the next station (area) after completing the corresponding operation in the area. One station can produce multiple products, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is one of the structural schematic diagrams of a multi-cavity slice rotary scraper automatic forming machine unit of the present invention;

[0048] Figure 2 This is the second structural schematic diagram of a multi-cavity slice rotary scraper automatic forming machine unit of the present invention;

[0049] Figure 3 yes Figure 1 Enlarged view of point B;

[0050] Figure 4 yes Figure 1 Enlarged view of point C;

[0051] Figure 5 yes Figure 1 Enlarged view of point D;

[0052] Figure 6 yes Figure 2 Enlarged view at E;

[0053] Figure 7 yes Figure 2 Enlarged view of point F;

[0054] Figure 8 This is one of the electrical principle diagrams of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention;

[0055] Fig. 9 This is the second electrical schematic diagram of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention;

[0056] Fig.10This is the third electrical schematic diagram of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention;

[0057] Fig.11 This is the fourth electrical schematic diagram of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention;

[0058] Fig.12 This is the fifth electrical schematic diagram of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention;

[0059] Fig.13 This is the sixth electrical schematic diagram of a multi-cavity slicing rotary scraping automatic forming machine unit of the present invention.

[0060] The numbers in the attached drawings are: 1 is a driving device, 2 is a weighing feeding device, 3 is a rotating scraper device, 4 is a mesh feeding device, 5 is a trademark feeding device, 6 is a core ring feeding device, 7 is a multi-head hydraulic press, 9 is a demoulding device, 201 is a linear vibration feeder, 202 is a storage tank, 203 is a weighing sensor, 204 is a material level sensor, 301 is a servo electric cylinder, 302 is a rotating table, 303 is a scraper receiving mechanism, 304 is a fixed frame, 4 01 is the first step horizontal moving mechanism, 402 is the mesh withdrawal component, 403 is the mesh threading rod, 404 is the placement plate, 405 is the second servo electric cylinder, 501 is the trademark placement plate, 502 is the trademark centering rod, 503 is the picking head assembly, 504 is the negative pressure module, 505 is the ejection cylinder, 601 is the vibrating feeding plate, 602 is the core ring linear conveyor belt, 603 is the ferromagnetic adsorption mechanism, 1001 is the PLC controller, and 1002 is the industrial computer. DETAILED DESCRIPTION

[0061] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0062] Example 1

[0063] like Figures 1 to 13 As shown, a multi-cavity slice rotary scraping automatic forming unit includes an assembly line platform, the assembly line platform includes two rows of molds arranged vertically in a line, and the assembly line platform is provided with a driving device 1, a weighing and feeding device 2, a rotary scraping device 3, a mesh delivery device 4, a trademark delivery device 5, a core ring delivery device 6, a multi-pressure head hydraulic press 7, a disc pressure head wax coating device, a demoulding device 9, and also includes a control system;

[0064] The assembly line platform is provided with A to H areas, the driving device 1 is provided in the A area of ​​the assembly line platform, the driving device 1 is used to drive the multiple molds to move, the weighing and feeding device 2 is provided in the B area, the weighing and feeding device 2 is used to weigh the molding material and feed it into the mold, the weighing and feeding device 2 includes a weighing module and a discharging module, and the weighing module and the discharging module are electrically connected to the control system;

[0065] The rotating scraper device 3 is arranged in the C area, and is used to drive the mold to rotate and scrape the molding material. The rotating scraper device 3 is electrically connected to the control system;

[0066] The mesh delivery device 4 is arranged in the D area, and the mesh delivery device 4 includes a picking mechanism and a mesh changing mechanism. The mesh delivery device 4 is used to deliver the mesh to the molding material in the mold, and the mesh delivery device 4 is electrically connected to the control system;

[0067] The core ring delivery device 6 is arranged in the E area, and includes a ferromagnetic adsorption mechanism 603. The core ring delivery device 6 is used to place the core ring in place. The trademark delivery device 5 and the core ring delivery device 6 are electrically connected to the control system.

[0068] The trademark placing device 5 is arranged in the F area, and the trademark placing device 5 includes a negative pressure adsorption mechanism, and the trademark placing device 5 is used to place the trademark into the mold;

[0069] The multi-ram hydraulic press 7 is arranged in the G area, and is used for extruding the molding material in the mold, and the multi-ram hydraulic press 7 is electrically connected to the control system;

[0070] The demoulding device 9 is arranged in the H area, and is used to demould the finished product, and the demoulding device 9 is electrically connected to the control system;

[0071] The control system includes a PLC controller 1001 and an industrial computer 1002 , and the PLC controller 1001 and the industrial computer 1002 are communicatively connected.

[0072] like Figure 3 and 8 As shown, as an implementable embodiment, the discharging module includes a vibrating tray, a linear vibrating feeder 201, a storage trough 202 and a door-opening cylinder, the weighing module includes a weighing hopper, a weighing sensor 203 and a level sensor 204, the level sensor 204 is arranged inside the weighing hopper, the level sensor 204 and the weighing sensor 203 are connected to the AI ​​module of the PLC controller 1001, the vibrating tray and the linear vibrating feeder 201 are connected to the DO module of the PLC controller 1001, the storage trough 202 is arranged at the lower part of the outlet of the vibrating tray, the lower opening position of the storage trough 202 is connected to the linear vibrating feeder 201, the linear vibrating feeder 201 includes a square tube, the weighing hopper is arranged at the lower part of the linear vibrating feeder 201, the door-opening cylinder is arranged at the lower part of the weighing hopper, the door-opening cylinder is arranged with a discharging solenoid valve, and the coil of the discharging solenoid valve is electrically connected to the PLC controller 1001;

[0073] The linear vibration feeder 201 is controlled by PID.

[0074] like Figure 4 and 9 As shown, as an implementable embodiment, the rotating scraper device 3 includes a servo electric cylinder 301, a rotating table 302, a scraper mechanism 303 and a fixed frame 304. The rotating table 302 is arranged below the horizontal plane of the assembly line platform where the mold is placed. The upper part of the rotating table 302 is a ring structure, and the lower part is a cylindrical structure. There are two rotating tables 302. The lower parts of the two rotating tables 302 are connected to a driving motor through a synchronous belt. The driving motor is fixed to the fixed frame 304 and is electrically connected to the PLC controller 1001. The upper part of the fixed frame 304 is provided with a servo electric cylinder 301, and the lower end of the servo electric cylinder 301 is connected to the scraper mechanism 303. There are two scraper mechanisms 303, and the installation position of the scraper mechanism 303 corresponds to the rotating table 302. The control end of the servo electric cylinder 301 is connected to the DO module of the PLC controller 1001, and the servo electric cylinder 301 drives the scraper mechanism 303 to move.

[0075] like Figure 5 and 10 As shown, the mesh delivery device 4 also includes a first stepping horizontal moving mechanism 401, which is arranged above the assembly line platform and vertically arranged with the assembly line platform. The first stepping horizontal moving mechanism 401 includes a slide rail, a slider and a stepping motor. The first stepping horizontal moving mechanism 401 drives the picking mechanism to move to the mesh changing mechanism position.

[0076] A pick-up mechanism is provided at the lower part of the slider, and the pick-up mechanism includes a screen-removing assembly 402 and a tape. A second servo electric cylinder 405 is provided between the screen-removing assembly 402 and the slider, and the screen-removing assembly 402 is used to fix the tape. The tape moves up and down with the second servo electric cylinder 405 and the screen-removing assembly 402.

[0077] The net changing mechanism includes a plurality of placement trays 404, each of which is a disc-shaped structure. A net threading rod 403 is arranged in the middle of the placement tray 404, and the net threading rod 403 is a cylindrical structure. The bottom end of the net threading rod 403 is fixed to the placement tray 404, and nets of different sizes are placed on the plurality of placement trays 404 respectively.

[0078] A frequency converter is provided between the first step horizontal moving mechanism 401 and the PLC controller 1001 . The frequency converter is connected to the DO module of the PLC controller 1001 . The control end of the second servo electric cylinder 405 is electrically connected to the PLC controller 1001 .

[0079] In this embodiment, the tape is made of stationery tape.

[0080] like Figure 7 and12 As shown, as an implementable embodiment, the trademark placing device 5 includes a trademark placing plate 501, a trademark centering rod 502, a pickup head assembly 503 and a negative pressure module 504. The trademark placing plate 501 is a disc-shaped structure, a cylindrical trademark centering rod 502 is fixedly arranged in the middle of the trademark placing plate 501, and an ejection cylinder 505 is fixedly arranged at the lower part of the trademark placing plate 501;

[0081] The pickup head assembly 503 includes an accordion-type suction cup, which is connected to a negative pressure module 504. The negative pressure module 504 includes a negative pressure sensor and a negative pressure generator. The negative pressure sensor is connected to an AI module of a PLC controller 1001, and the negative pressure generator is electrically connected to the PLC controller 1001.

[0082] A second stepping horizontal moving mechanism is provided at the upper end of the pickup head assembly 503 and the negative pressure module 504, and the second stepping horizontal moving mechanism drives the pickup head assembly 503 and the negative pressure module 504 to move horizontally. The second stepping horizontal moving mechanism is connected to the PLC controller 1001 through a frequency converter.

[0083] like Figure 6 and 11 As shown, as an implementable embodiment, the core ring delivery device 6 includes a vibrating feeding tray 601, a core ring linear conveyor belt 602 and a ferromagnetic adsorption mechanism 603. The core ring linear conveyor belt 602 is arranged at the outlet position of the vibrating feeding tray 601, and a picking position is arranged at the end of the core ring linear conveyor belt 602. The ferromagnetic adsorption mechanism 603 includes a third servo electric cylinder and a magnet. The third servo electric cylinder drives the magnet to move up and down.

[0084] The third servo electric cylinder is provided with a third stepping horizontal moving mechanism at the upper end thereof, and the third stepping horizontal moving mechanism drives the third servo electric cylinder and the ferromagnetic adsorption mechanism 603 to move horizontally.

[0085] The third stepping horizontal moving mechanism is connected to the PLC controller 1001 via a frequency converter, and the control end of the third servo electric cylinder is electrically connected to the PLC controller 1001 .

[0086] like Figure 1 and 11 As shown, as an implementable embodiment, the multi-pressure head hydraulic press 7 includes a floating cylinder body, a hydraulic oil chamber, a floating piston and a pressure head. The floating cylinder body is provided with a plurality of floating piston mounting holes. The top surfaces of the floating piston mounting holes are connected to form a hydraulic oil chamber. The pressure head is fixedly arranged at the bottom of the floating piston. A hydraulic oil tank is arranged in the hydraulic oil chamber. An electromagnetic valve is arranged between the hydraulic oil tank and the hydraulic oil chamber. The electromagnetic valve is electrically connected to the PLC controller 1001.

[0087] like Fig.13 As shown, as an implementable embodiment, the demoulding device 9 includes a fourth stepping horizontal moving mechanism, a blank suction mechanism, and a pressure head transport mechanism, the blank suction mechanism includes a negative pressure blank suction mechanism and an air claw device, and the fourth stepping horizontal moving mechanism is used to drive the pressure head transport mechanism to move to the blank suction position for demoulding;

[0088] The fourth stepping horizontal moving mechanism is connected to the PLC controller 1001 via a frequency converter, and the negative pressure blank suction and air gripper device are electrically connected to the PLC controller 1001 .

[0089] As an implementation method, the driving device 1 includes two fourth servo electric cylinders disposed at both ends of the assembly line platform, and the control end of the fourth servo electric cylinder is electrically connected to the PLC controller 1001.

[0090] In this embodiment, the parameters are set by the industrial computer 1002:

[0091] Speed ​​adjustment range: 40~80R / MIN;

[0092] The tolerance of die bottom end face runout when the die rotates is ±0.05MM;

[0093] The weighing accuracy tolerance is ±0.5g;

[0094] The vertical tolerance of the scraper lifting trajectory to the mold bottom plate is ±0.1MM;

[0095] The servo electric cylinder 301 drives the scraper mechanism 303 to rise and fall slightly. The positioning tolerance of the scraper mechanism 303 falling height is ±0.1MM, and the tolerance of the slightly lifting distance is ±0.05MM.

[0096] The positioning tolerance of the mold working position is 0.1MM;

[0097] To ensure that each mold bears the same pressure, the grinding wheel thickness tolerance is 0.1MM;

[0098] The working cycle is 7-9 seconds. Taking three cavities as an example, 3 grinding wheels are formed every 7-9 seconds.

[0099] Combined with the above embodiments, the operation process of the multi-cavity slicing rotary scraping automatic forming unit is described:

[0100] After power-on, the drive device 1 drives the assembly line platform to rotate the mold, and the mold enters area B. The drive device 1 stops, and then the vibrating material tray sends the molding material into the storage tank 202, and the molding material enters the weighing hopper through the linear vibration feeder 201. At this time, the material level sensor 204 detects the position of the molding material in the weighing hopper. According to the detection signal, the PLC controller 1001 controls the discharge speed of the linear vibration feeder 201. The weighing sensor 203 detects the weight of the molding material in the hopper. When the weight reaches the set value, the PLC controller energizes the door opening cylinder, and the molding material enters the mold;

[0101] The mold with molding material comes to area C, the rotating table 302 drives the mold to rotate, the servo electric cylinder 301 drives the scraper mechanism 303 to move, and the scraper mechanism 303 realizes scraping;

[0102] The mold that has finished scraping enters the D area, and the first step horizontal moving mechanism 401 drives the picking mechanism to be placed above the screen changing mechanism, and picks up the screen cloth through the winding belt. When the first step horizontal moving mechanism 401 drives the picking mechanism to be located at the mold position, the second servo electric cylinder 405 drives the screen withdrawal mechanism to move downward, and the screen withdrawal mechanism releases the screen cloth;

[0103] The mold with the cloth mesh added enters the E area, the vibrating feeding tray 601 transfers the core ring to the picking position of the core ring linear conveyor belt 602, the third stepping horizontal moving mechanism drives the third servo electric cylinder and the ferromagnetic adsorption mechanism 603 to move horizontally, so that the ferromagnetic adsorption mechanism is located at the upper part of the picking position, the third servo electric cylinder drives the ferromagnetic adsorption mechanism 603 to descend, the magnet adsorbs the core ring, the third servo electric cylinder and the ferromagnetic adsorption mechanism 603 reset, the third servo electric cylinder drives the ferromagnetic adsorption mechanism 603 to push the core ring downward to the bottom of the chamfer of the core rod, and then resets, the core ring is left in the mold under the action of the core rod;

[0104] The mold enters the F area, and the second stepping horizontal moving mechanism drives the pickup head assembly 503 to move toward the trademark placement plate 501. In this embodiment, the trademark centering rod 502 has a damping characteristic to prevent multiple labels from being picked up at one time. The ejection cylinder 505 at the lower part of the trademark placement plate 501 makes the trademark centering rod 502 rise, and the negative pressure module 504 works to suck up the trademark through the accordion suction cup. At this time, the detection value of the negative pressure sensor changes due to the presence of the trademark. The PLC controller 1001 controls the second stepping horizontal moving mechanism to drive the pickup head assembly 503 to reset, and the negative pressure sensor stops working. The trademark falls off due to the influence of gravity and enters the mold;

[0105] The mold loaded with the trademark and core ring enters the G area, and the multi-head hydraulic press 7 presses the auxiliary materials and molding materials in the mold, and then the blank is demolded in the H area. The fourth step horizontal moving mechanism will move the suction blank to the position of the pressure head conveying mechanism to suck the blank with negative pressure or the air claw device for demolding, and the operation of the multi-cavity slicing and rotating scraping automatic molding unit is completed.

[0106] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A multi-cavity slice rotary scraping automatic forming unit, comprising an assembly line platform, the assembly line platform comprising two rows of molds arranged in a line longitudinally, the assembly line platform is provided with a driving device (1), a weighing feeding device (2), a rotary scraping device (3), a mesh feeding device (4), a trademark feeding device (5), a core ring feeding device (6), a multi-pressure head hydraulic press (7), a disc pressure head wax coating device and a demoulding device (9), characterized in that: Also includes control systems; The assembly line platform is provided with areas A to H, the driving device (1) is provided in area A of the assembly line platform, the driving device (1) is used to drive the plurality of molds to move, the weighing and feeding device (2) is provided in area B, the weighing and feeding device (2) is used to weigh the molding material and feed it into the mold, the weighing and feeding device (2) comprises a weight measuring module and a discharge module, the weight measuring module and the discharge module are electrically connected to the control system; The rotating scraper device (3) is arranged in the C area, and is used to drive the mold to rotate and scrape the molding material. The rotating scraper device (3) is electrically connected to the control system; The mesh delivery device (4) is arranged in area D, and comprises a picking mechanism and a mesh changing mechanism. The mesh delivery device (4) is used to deliver the mesh into the molding material in the mold, and the mesh delivery device (4) is electrically connected to the control system; The core ring delivery device (6) is arranged in the E area and comprises a ferromagnetic adsorption mechanism (603). The core ring delivery device (6) is used to place the core ring in place. The trademark delivery device (5) and the core ring delivery device (6) are electrically connected to the control system. The trademark placement device (5) is arranged in the F area, the trademark placement device (5) comprises a negative pressure adsorption mechanism, and the trademark placement device (5) is used to place the trademark into the mold; The multi-press hydraulic press (7) is arranged in the G area, and the multi-press hydraulic press (7) is used to extrude the molding material in the mold, and the multi-press hydraulic press (7) is electrically connected to the control system; The demoulding device (9) is arranged in the H region, and is used to perform demoulding processing on the finished product. The demoulding device (9) is electrically connected to the control system; The control system comprises a PLC controller (1001) and an industrial computer (1002), and the PLC controller (1001) and the industrial computer (1002) are communicatively connected; The rotary scraper device (3) comprises a servo electric cylinder (301), a rotary table (302), a scraper mechanism (303) and a fixed frame (304). The rotary table (302) is arranged below the horizontal plane on which the mold is placed on the assembly line platform. The upper part of the rotary table (302) is a ring-shaped structure, and the lower part is a cylindrical structure. There are two rotary tables (302). The lower parts of the two rotary tables (302) are connected to a drive motor via a synchronous belt. The drive motor is fixed to the fixed frame (304) and is connected to the P The LC controller (1001) is electrically connected, a servo electric cylinder (301) is arranged on the upper part of the fixing frame (304), the lower end of the servo electric cylinder (301) is connected to a scraper mechanism (303), the number of the scraper mechanisms (303) is two, the installation position of the scraper mechanism (303) corresponds to the rotating table (302), the control end of the servo electric cylinder (301) is connected to the DO module of the PLC controller (1001), and the servo electric cylinder (301) drives the scraper mechanism (303) to move; The mesh delivery device (4) further comprises a first stepping horizontal moving mechanism (401), the first stepping horizontal moving mechanism (401) being arranged above the assembly line platform and perpendicular to the assembly line platform, the first stepping horizontal moving mechanism (401) comprising a slide rail, a slider and a stepping motor, the first stepping horizontal moving mechanism (401) driving the picking mechanism to move to the mesh changing mechanism position, A pick-up mechanism is provided at the bottom of the slider, the pick-up mechanism comprising a screen-removing assembly (402) and a tape roll, a second servo electric cylinder (405) is provided between the screen-removing assembly (402) and the slider, the screen-removing assembly (402) is used to fix the tape roll, and the tape roll moves up and down along with the second servo electric cylinder (405) and the screen-removing assembly (402); The net changing mechanism comprises a plurality of placement plates (404), each of the plurality of placement plates (404) being a disc-shaped structure, a net threading rod (403) being arranged in the middle of the placement plates (404), the net threading rod (403) being a cylindrical structure, the bottom end of the net threading rod (403) being fixed to the placement plates (404), and nets of different sizes being placed on the plurality of placement plates (404); A frequency converter is provided between the first stepping horizontal moving mechanism (401) and the PLC controller (1001), the frequency converter is connected to the DO module of the PLC controller (1001), and the control end of the second servo electric cylinder (405) is electrically connected to the PLC controller (1001); The multi-pressure head hydraulic press (7) comprises a floating cylinder body, a hydraulic oil chamber, a floating piston and a pressure head. The floating cylinder body is provided with a plurality of floating piston mounting holes. The top surfaces of the floating piston mounting holes are connected to form a hydraulic oil chamber. The pressure head is fixedly arranged at the bottom of the floating piston. The hydraulic oil chamber is provided with a hydraulic oil tank. An electromagnetic valve is arranged between the hydraulic oil tank and the hydraulic oil chamber. The electromagnetic valve is electrically connected to a PLC controller (1001).

2. The multi-cavity slice rotary scraping automatic forming machine unit according to claim 1 is characterized in that: The material discharging module comprises a vibrating material tray, a linear vibrating feeder (201), a material storage tank (202) and a door opening cylinder; the weighing module comprises a weighing hopper, a weighing sensor (203) and a material level sensor (204); the material level sensor (204) is arranged inside the weighing hopper; the material level sensor (204) and the weighing sensor (203) are connected to the AI ​​module of the PLC controller (1001); the vibrating material tray and the linear vibrating feeder (201) are connected to the PLC controller (1001); A DO module of a C controller (1001), a material storage trough (202) is arranged at the lower part of the outlet of the vibrating material tray, the lower opening position of the material storage trough (202) is connected to the linear vibrating feeder (201), the linear vibrating feeder (201) comprises a square tube, a weighing hopper is arranged at the lower part of the linear vibrating feeder (201), a door opening cylinder is arranged at the lower part of the weighing hopper, a discharge solenoid valve is arranged on the door opening cylinder, and the coil of the discharge solenoid valve is electrically connected to the PLC controller (1001); The linear vibration feeder (201) adopts PID control.

3. The multi-cavity slice rotary scraper automatic forming unit according to claim 1 is characterized in that: The trademark placement device (5) comprises a trademark placement plate (501), a trademark centering rod (502), a pickup head assembly (503) and a negative pressure module (504); the trademark placement plate (501) is a disc-shaped structure; a cylindrical trademark centering rod (502) is fixedly arranged in the middle of the trademark placement plate (501); and an ejection oil cylinder (505) is fixedly arranged at the bottom of the trademark placement plate (501); The pickup head assembly (503) comprises an accordion-type suction cup, the accordion-type suction cup is connected to a negative pressure module (504), the negative pressure module (504) comprises a negative pressure sensor and a negative pressure generator, the negative pressure sensor is connected to an AI module of a PLC controller (1001), and the negative pressure generator is electrically connected to the PLC controller (1001); A second stepping horizontal moving mechanism is provided at the upper end of the pickup head assembly (503) and the negative pressure module (504), and the second stepping horizontal moving mechanism drives the pickup head assembly (503) and the negative pressure module (504) to move horizontally. The second stepping horizontal moving mechanism is connected to the PLC controller (1001) via a frequency converter.

4. The multi-cavity slice rotary scraper automatic forming unit according to claim 1 is characterized in that: The core ring delivery device (6) comprises a vibrating feeding tray (601), a core ring linear conveyor belt (602) and a ferromagnetic adsorption mechanism (603); the core ring linear conveyor belt (602) is arranged at the outlet position of the vibrating feeding tray (601); a picking position is arranged at the end of the core ring linear conveyor belt (602); the ferromagnetic adsorption mechanism (603) comprises a third servo electric cylinder and a magnet; the third servo electric cylinder drives the magnet to move up and down. A third stepping horizontal moving mechanism is arranged at the upper end of the third servo electric cylinder, and the third stepping horizontal moving mechanism drives the third servo electric cylinder and the ferromagnetic adsorption mechanism (603) to move horizontally. The third stepping horizontal moving mechanism is connected to the PLC controller (1001) via a frequency converter, and the control end of the third servo electric cylinder is electrically connected to the PLC controller (1001).

5. The multi-cavity slice rotary scraper automatic forming machine set according to claim 1 is characterized in that: The demoulding device (9) comprises a fourth stepping horizontal moving mechanism, a blank suction and a pressing head transport mechanism, the blank suction comprises a negative pressure blank suction and an air gripper device, and the fourth stepping horizontal moving mechanism is used to drive the pressing head transport mechanism to move to the blank suction position for demoulding; The fourth stepping horizontal moving mechanism is connected to the PLC controller (1001) via a frequency converter, and the negative pressure blank suction and air gripper device are electrically connected to the PLC controller (1001).

6. The multi-cavity slice rotary scraper automatic forming machine set according to claim 1 is characterized in that: The driving device (1) comprises two fourth servo electric cylinders respectively arranged at two ends of the assembly line platform, and the control ends of the fourth servo electric cylinders are electrically connected to the PLC controller (1001).

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