Automatic feeding and demolding double-mold device control system and control method

Abstract

The invention relates to the technical field of hydraulic machines, in particular to an automatic feeding and demolding double-mold device system and a control method thereof. The demolding mechanism comprises a first demolding mechanism and a second demolding mechanism which are the same in structure, the first demolding mechanism and the second demolding mechanism are arranged on the two sides of the hydraulic machine respectively, feeding devices are correspondingly arranged at the side ends of the first demolding mechanism and the second demolding mechanism respectively, and pushing devices are arranged on the opposite sides of the feeding devices. A first manipulator and a second manipulator are arranged at the front end of each of the first demolding mechanism and the second demolding mechanism; the first manipulator is used for spraying a release agent, and the second manipulator is used for grabbing a finished product. By the adoption of the device, automatic feeding, automatic demolding and cyclic product pressing can be achieved, the labor cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic press powder pressing and demoulding, and in particular to a control system and a control method for a double-mold device for automatic feeding and demoulding. Background Art

[0002] As is known, hydraulic presses can compress powder into shape, but loading and unloading are done manually. Powder can cause certain harm to the human body during loading. After the powder is pressed, the pressed product is not easy to remove from the inside of the mold and needs to be demolded manually. The demolding method is to lift the entire mold out after the mold is removed and then remove the mold frame. There will be a large demolding force during demolding, which is easy to damage the product, increase labor costs, and have low efficiency. After demolding, the mold frame is assembled and then loaded and pressed, which increases the product output time.

[0003] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a control system and control method for a dual-mold device with automatic loading and demoulding, which can achieve the goals of automatic loading, automatic demoulding, cyclic pressing of products, reduce labor costs, and improve production efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a control system for a double-mold device with automatic loading and demoulding, comprising a foundation surface and a hydraulic press, wherein the recessed space of the foundation surface forms an installation space for the hydraulic press and a demoulding mechanism; the hydraulic press comprises an upper crossbeam, a main cylinder arranged on the upper crossbeam, a movable crossbeam, a lower crossbeam and a column, wherein the upper crossbeam, the movable crossbeam and the lower crossbeam are arranged on the hydraulic press in sequence and connected by columns; ejection cylinders for lifting the movable crossbeam are symmetrically arranged on both sides of the lower crossbeam, an electrical cabinet is arranged on one side of the hydraulic press, and a control console is arranged next to the electrical cabinet, an upper heating plate is fixedly arranged on the lower plate surface of the movable crossbeam of the hydraulic press, and a lower heating plate is fixedly connected to the upper plate surface of the lower crossbeam, characterized in that: the demoulding mechanism comprises a first demoulding mechanism having the same structure The first demoulding mechanism and the second demoulding mechanism are respectively arranged on both sides of the hydraulic press, and the upper ends of the first demoulding mechanism and the second demoulding mechanism are both provided with a mold device, and the mold device moves back and forth between the demoulding mechanism and the hydraulic press, and the side ends of the first demoulding mechanism and the second demoulding mechanism are respectively provided with a feeding device, and the opposite side of the feeding device is provided with a pushing device, and the front ends of the first demoulding mechanism and the second demoulding mechanism are both provided with a first manipulator and a second manipulator; the feeding device is used to feed materials into the mold device, and the pushing device is used to level the materials in the mold device, and the demoulding mechanism is used to eject the finished product pressed in the mold device, and the first manipulator is used to spray a demoulding agent, and the second manipulator is used to grab the finished product; The control system also includes a motor control system, a heating control system, a hydraulic control system, a demoulding control system and a robot control system. The motor control system controls the mold device, the feeding device and the pushing device. The heating control system controls the upper heating plate and the lower heating plate. The hydraulic control system controls the main cylinder and the ejection cylinder of the hydraulic press. The demoulding control system controls the demoulding mechanism. The robot control system controls the first manipulator and the second manipulator.

[0005] Furthermore, the support frame includes a connecting plate, a bearing block, a mounting block and a connector. The support frame is surrounded by a plurality of horizontal columns and vertical columns. A mounting block fixed to the ground is arranged at the bottom of the support frame. A connecting plate is fixed at the middle and upper end of the support frame. Connectors are arranged on both sides of the connecting plate close to the end of the hydraulic press. The two connectors are fixedly connected to the hydraulic press. The connecting plate is far away from the end of the hydraulic press and is respectively provided with mold stopper blocks. The tops of the two mold stopper blocks are provided with mold stoppers. The bottom of the support frame is symmetrically provided with bearing blocks. Guide grooves are arranged on the short sides of both sides of the support frame. Ejection mechanism: The ejection mechanism is arranged in the supporting frame, and includes a lower main cylinder, an ejection block, an ejector rod 1, a secondary ejection cylinder, a secondary ejection block and an ejector rod 2. The lower main cylinder is arranged on the bearing block, an ejection block is arranged above the movable end of the lower main cylinder, a secondary ejection cylinder is fixedly arranged in the middle of the ejection block, a plurality of ejector rods 1 extending upward are symmetrically arranged on the ejection block, a secondary ejection block is arranged above the movable end of the secondary ejection cylinder, a plurality of ejector rods 2 extending upward are arranged on the secondary ejection block, at least two of the ejector rods 1 are arranged on the secondary ejection block through sliding; the bearing block, the ejection block, the secondary ejection block and the connecting plate are connected by guide rods arranged through them; Mold device: The mold device is slidably arranged in the guide groove at the upper end of the support frame, and comprises a lower mold bottom plate, a lower mold ejector plate, and a square mold cavity. The lower mold bottom plate is provided with a hollow square mold cavity, and the lower mold ejector plate is provided in the square mold cavity; The power output device of the mobile mold device includes guide rails, gear bars, motors, gear shafts and gears. The guide rails are symmetrically arranged on the lower end surface of the lower mold bottom plate. One end of the two guide rails is fixedly connected to the side of the lower heating plate, and telescopic support columns are respectively arranged below the other ends for support. The telescopic support columns penetrate the connecting plate and extend downward to the ground. Two parallel gear bars are symmetrically arranged on the outer sides of the two guide rails. The two gear bars are fixedly connected to the lower mold bottom plate, and the two gear bars are meshed with the gears. The gears are sleeved at both ends of the gear shafts, and the gear shafts are connected to the output end of the motor, and the gear shafts penetrate the two connectors.

[0006] Furthermore, a first ejection hole cooperating with ejector pin 1 and ejector pin 2 is provided on the bottom plate of the lower mold, a plurality of downwardly concave top rings are symmetrically arranged at intervals on the ejection plate of the lower mold, a second ejection hole cooperating with ejector pin 2 is provided at the bottom of the top ring, a small ejector plate is movably provided in the top ring, the upper surface of the small ejector plate is flush with the upper surface of the ejection plate of the lower mold, and a weighing sensing device is provided on the square mold cavity.

[0007] Furthermore, the feeding device is composed of two groups, including a motor, a bracket, a conveyor belt and a roller group. The upper end of the bracket is provided with a roller group and a conveyor belt. The conveyor belt rotates on the roller group, and the conveyor belt is driven by motor one.

[0008] Furthermore, the first limiting mechanism and the second limiting mechanism for limiting the bottom plate of the lower mold are symmetrically arranged on both sides of the lower heating plate, the first limiting mechanism limits the mold device in the second demolding mechanism, and the second limiting mechanism limits the mold device of the first demolding mechanism.

[0009] Furthermore, the first limiting mechanism and the second limiting mechanism have the same structure, including a limiting block, a spring and a groove, the lower end of the limiting block is connected to the spring, the lower end of the spring is connected to the groove, and the limiting block can be completely collapsed in the groove when pushed down.

[0010] Furthermore, the pushing device includes a first sliding rod, a connecting rod, a second sliding rod, a vertical rod, an inclined rod, a push plate and a second motor. The first sliding rod, the connecting rod and the second sliding rod are connected by a joint shaft. The connecting rod and the second sliding rod can slide at the top of the vertical rod. The first sliding rod slides at one end of the inclined rod, and one end of the inclined rod is rotatably connected to the vertical rod. A push plate is fixed at the end of the second sliding rod.

[0011] Furthermore, a control method includes a control system for the above-mentioned dual-mold device for automatic loading and demoulding, comprising the following steps: First, fix the upper mold on the upper heating plate, fix the lower mold on the lower heating plate, ensure that the control system is normal and turned on, and the mold device on the first demoulding mechanism enters the hydraulic press. S1: The mold device enters the hydraulic press S2: The heating control system is turned on to preheat the mold device; S3: After heating is completed, the mold device returns to the initial position; S4: The first manipulator sprays a release agent on the mold device; S5: The loading device loads the mold device; S6: The material pushing device levels the material in the mold device; S7: The mold device enters the hydraulic press; S8: Press, the movable crossbeam returns; S9: The mold device exits along the original path; S10: demoulding; S11: The second robot grabs the finished product and leaves; The mold device in S1 is the first mold device. In S9, after the first mold device exits, the second mold device starts to run, returns to step S1, and repeats S1-S11. Subsequently, the first mold device enters the hydraulic press after the second mold device performs step S9, and returns to step S1. The first mold device and the second mold device alternately cycle into the hydraulic press for pressing operations.

[0012] Furthermore, the S5 also includes that the sensing device in the square mold cavity senses the weight, and the feeding device will not feed the material after the weight set by the control system is reached.

[0013] Furthermore, in S7, the pressing force calculation formula can be expressed as: , where K is a constant related to powder properties and molding conditions, t is the molding time, is the thickness of the powder layer, б is the flow stress of the powder, and V is the volume of the mold cavity.

[0014] The present invention provides a control system and a control method for a dual-mold device with automatic loading and demoulding, which aims to reduce labor costs and improve production efficiency through automatic loading, automatic demoulding, and circulating products in a hydraulic press. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a top view schematic diagram of the present invention; Figure 3 It is a combined diagram of the demoulding mechanism and the mold device of the present invention; Figure 4 It is a schematic diagram of the demoulding mechanism structure of the present invention; Figure 5 for Figure 4 Schematic diagram of the supporting frame structure in the demoulding mechanism; Figure 6 for Figure 4 Schematic diagram of the ejection mechanism structure in the demoulding mechanism; Figure 6-1 for Figure 6 Explosion diagram of the ejector mechanism; Figure 7 It is a schematic diagram of the mold device in the present invention; Figure 7-1 for Figure 7 Schematic diagram of the structure of the lower mold ejector plate and the lower mold bottom plate in the mold device; Figure 8It is a partial schematic diagram of the present invention; Fig. 9 It is a schematic diagram of the structure of the material pushing device in the present invention; Fig.10 This is a schematic diagram of the control system framework in the present invention; Fig.11 It is a schematic diagram of the demoulding process of the demoulding mechanism in the present invention; Fig.12 It is a schematic flow chart of the operating steps of the control method in the present invention.

[0016] In the figure: 1. Foundation surface; 2. Hydraulic press; 21. Lower crossbeam; 22. Ejector cylinder; 23. Lower heating plate; 24. Limit block; 3. Demolding mechanism; 3a. First demoulding mechanism; 3b. Second demoulding mechanism; 31. Support frame; 311, connecting plate; 312, bearing block; 313, guide groove; 314, connecting body; 315, mold stopper column; 316, mold stopper; 32. Ejection mechanism; 321, lower main cylinder; 322, ejector block; 323, ejector rod 1; 324, secondary ejector cylinder; 325, secondary ejector block; 326, ejector rod 2; 327, guide rod; 328, lubrication sleeve; 4. Mould device; 4a, first mold device; 4b, second mold device; 41. bottom plate of lower mold; 42. first ejection hole; 43. square mold cavity; 44. ejection plate of lower mold; 45. top ring; 46. second ejection hole; 47. small ejector plate; 5. Power output device; 51. Motor; 52. Gear bar; 53. Guide rail; 6. Electrical cabinet; 7. Control panel; 8. feeding device; 81. bracket; 82. conveyor belt; 9. Pushing device; 90. Connecting rod; 91. First sliding rod; 92. Second sliding rod; 93. Vertical rod; 94. Diagonal rod; 95. Push plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "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 invention.

[0019] Example 1, please refer to Figure 1-Figure 3 In the invention, a control system for a double-mold device for automatic loading and demoulding includes a foundation surface 1, a hydraulic press 2, a recessed space in the foundation surface 1 forms an installation space for the hydraulic press 2 and a demoulding mechanism 3; the hydraulic press 2 includes an upper crossbeam, a main cylinder arranged on the upper crossbeam, a movable crossbeam, a lower crossbeam 21 and a column, the upper crossbeam, the movable crossbeam and the lower crossbeam 21 are arranged on the hydraulic press 2 in sequence and connected by columns; ejection cylinders 22 for lifting the movable crossbeam are symmetrically arranged on both sides of the lower crossbeam 21, an electrical cabinet 6 is arranged on one side of the hydraulic press 2, a control console 7 is arranged next to the electrical cabinet 6, an upper heating plate is fixedly arranged on the lower plate surface of the movable crossbeam 21, a lower heating plate 23 is fixedly connected to the upper plate surface of the lower crossbeam, the demoulding mechanism 3 includes a first demoulding mechanism 3a and a second demoulding mechanism 3b with the same structure, the first demoulding mechanism 3a and the second demoulding mechanism 3b are arranged on the same structure, and the first demoulding mechanism 3a and the second demoulding mechanism 3b are arranged on the same structure. The mold mechanism 3a and the second demolding mechanism 3b are respectively arranged on both sides of the hydraulic press 2, and the upper ends of the first demolding mechanism 3a and the second demolding mechanism 3b are both provided with a mold device 4, and the mold device 4 moves back and forth between the demolding mechanism 3 and the hydraulic press 2. The side ends of the first demolding mechanism 3a and the second demolding mechanism 3b are respectively provided with a feeding device 8, and the opposite side of the feeding device 8 is provided with a pushing device 9. The front ends of the first demolding mechanism 3a and the second demolding mechanism 3b are both provided with a first manipulator and a second manipulator; the feeding device 8 is used to feed the material into the mold device 4, and the pushing device 9 is used to level the material in the mold device 4. The demolding mechanism 3 is used to eject the finished product pressed in the mold device 4, the first manipulator is used to spray the demolding agent, and the second manipulator is used to grab the finished product; The control system also includes a motor control system, a heating control system, a hydraulic control system, a demoulding control system and a robot control system. The motor control system controls the mold device 4, the feeding device 8, and the pushing device 9. The heating control system controls the upper heating plate and the lower heating plate 9. The hydraulic control system controls the hydraulic press main cylinder and the ejection cylinder 22. The demoulding control system controls the demoulding mechanism 3. The robot control system controls the first manipulator and the second manipulator.

[0020] In this embodiment, the first manipulator includes a base and a rotary spraying device. A hose is connected to the rotary spraying device. A plurality of nozzles are arranged at the outlet of the rotary spraying device. The plurality of nozzles are connected to a storage tank for storing a release agent through the hose. The rotary spraying device can rotate around the base. The rotary spraying device can be controlled by a robot control system to facilitate spraying of the release agent on the mold device 4 and ensure that the release agent that can be sprayed can cover the inside of the square mold cavity 43 in the mold device 4.

[0021] The motor control system, heating control system, hydraulic control system, demoulding control system and robot control system are all integrated in the electrical cabinet 6 and can be controlled by the control console 7.

[0022] In this embodiment, this hydraulic press is used to press powder. Through the above technical solution, the feeding device 8 can automatically load the material, the pushing device 9 can level the material, the first mold device 4a and the second mold device 4b can cyclically perform the pressing operation, and after the finished product is pressed out and demolded by the demolding mechanism 3, the second manipulator can grab the finished product and leave the demolding mechanism 3.

[0023] Embodiment 2, the demoulding mechanism 3 comprises: Support frame 31: Figure 4-Figure 5 As shown, it includes a support frame 31, a mounting block, a connecting plate 311, a bearing block 312 and a connecting body 314. The support frame 31 is surrounded by a plurality of horizontal columns and vertical columns. A mounting block fixed to the ground is arranged at the bottom of the support frame 31; a reinforcing plate can also be fixedly installed at the front end of the support frame 31 to increase the strength of the support frame 31. A connecting plate 311 is fixed at the upper end of the support frame 31. Connectors 314 are respectively arranged on both sides of the connecting plate 311 close to one end of the hydraulic press. The two connecting bodies 314 are fixedly connected to the hydraulic press. Mold stopper columns 315 are respectively arranged on both sides of the plane on the connecting plate 311 away from one end of the hydraulic press. Mold stopper columns 316 are arranged on the top of the two mold stopper columns 315. Bearing blocks 312 are symmetrically arranged at the bottom of the support frame 31; guide grooves 313 are arranged on the short sides of both sides of the support frame 31. The mounting block is fixed to the ground with bolts, and the connector is fixedly connected to the hydraulic press by bolts, which ensures the stability between the support frame 31 and the hydraulic press. The guide groove 313 is set at a height higher than the connecting plate 311 to facilitate the sliding of the mold device.

[0024] Ejection mechanism 32: Figure 6 and Figure 6-1As shown, the ejection mechanism 32 is arranged in the supporting frame 31, and includes a lower main cylinder 321, an ejection block 322, an ejector rod 1 323, a secondary ejection cylinder 324, a secondary ejection block 325 and an ejector rod 2 326. The lower main cylinder 321 is arranged on the bearing block 312, and an ejection block 322 is arranged above the movable end of the lower main cylinder 321. A secondary ejection cylinder 324 is fixedly arranged in the middle of the ejection block 322. A plurality of ejector rods 1 323 extending upward are symmetrically arranged on both sides of the ejection block 322. In this embodiment, there are four ejector rods 1. A secondary ejection block 325 is arranged above the movable end of the secondary ejection cylinder 324. Block 325 is parallel to and corresponds to ejection block 322 in the vertical direction. A plurality of ejector rods 326 extending upward are arranged on the secondary ejection block 325. In this embodiment, there are three ejector rods 326, and two of the ejector rods 323 are slidably arranged on the secondary ejection block 325. A guide rod 327 is arranged through and connected between the bearing block 312, the ejection block 322, the secondary ejection block 325 and the connecting plate 311. A nut is arranged at the upper end of the connecting plate 311 for limiting the guide rod 327. A nut is also arranged at the lower end of the bearing block 312 for limiting the guide rod 327, so as to prevent the guide rod 327 from moving up and down.

[0025] In order to ensure that the ejector rod 1 323 moves more smoothly on the secondary ejection block 325, a lubricating sleeve 328 is fixedly provided at the place where the secondary ejection block 325 is penetrated by the ejector rod 1 323. The lubricating sleeve 328 plays a guiding and lubricating role, so that the ejector rod 1 323 slides in the lubricating sleeve 328. The lubricating sleeve 328 is also fixedly provided at the place where the connecting plate 311 is penetrated by the ejector rod 1 323 and the ejector rod 2 326. The setting of the lubricating sleeve 328 allows the ejector rod 1 323 and the ejector rod 2 326 to slide more smoothly.

[0026] Mold device 4: Reference Figure 3 The mold device 4 is slidably disposed in the guide groove 313 at the upper end of the support frame 31, and further reference is made to Figure 7 and Figure 7-1 , including a lower mold bottom plate 41, a lower mold ejector plate 44, and a square mold cavity 43. Guide grooves 313 for the lower mold bottom plate 41 to slide are arranged on the short sides of both sides of the support frame 31. A hollow square mold cavity 43 is arranged on the upper plate surface of the lower mold bottom plate 41, and a lower mold ejector plate 44 is arranged in the square mold cavity 43.

[0027] like Figure 5As shown, the setting of the guide groove 313 allows the mold device 4 to slide out conveniently and plays a guiding role for the mold device 4. Specifically, when in use, the lower mold base plate 41 slides back and forth in the guide groove 313. When demolding, the guide groove 313 will also exert a reverse pulling force on the lower mold base plate 41. The top ends of the two mold stop block columns 315 are provided with mold stop blocks 316 for limiting the movement of the lower mold base plate 41. When the lower mold base plate 41 is moved out, the mold stop blocks 316 will limit the position of the lower mold base plate 41, so that the position of the lower mold base plate 41 is more precise.

[0028] Power output device 5 of movable mold device 4: refer to Figure 8 , including a motor 51, a gear bar 52, a guide rail 53, a gear shaft and a gear. The guide rail 53 is symmetrically arranged on the lower end surface of the lower mold bottom plate 41. One end of the two guide rails 53 is fixedly connected to the side of the lower heating plate 23, and the other end is supported by a telescopic support column respectively below. The telescopic support column passes through the connecting plate 311 and extends downward to the ground. Two parallel gear bars 52 are symmetrically arranged on the outside of the two guide rails 53. The two gear bars 52 are fixedly connected to the lower mold bottom plate 41, and the two gear bars 52 are meshed with gears. The gears are sleeved at both ends of the gear shaft, and the gear shaft is connected to the output end of the motor 341, and the gear shaft passes through the two connectors 314.

[0029] In this embodiment, a ball bearing is arranged inside the guide rail 53 to facilitate the rolling of the mold device 4 on it, a gear protection cover is arranged outside the gear to protect the gear, two connecting bodies 314 are arranged between the two gears, and two guide rails 53 are arranged between the two connecting bodies 314. In this way, when the motor 51 rotates, it drives the gear to rotate, and the gear drives the gear bar 52 to move. Since the gear bar 52 is fixed on the lower mold bottom plate 41, the lower mold bottom plate 41 can be moved toward the hydraulic press 2. A corresponding groove for the gear bar to pass through is arranged on the lower heating plate 23. In this scheme, the motor 51 is a reduction motor. Through the above scheme, the power output device 5 is started, and the mold device 4 can move back and forth stably in the guide grooves on the hydraulic press 2 and the support frame 31.

[0030] like Figure 6 and Figure 7-1As shown, the lower mold bottom plate 41 is provided with a first ejection hole 42 that cooperates with the ejector rod 1 323 and the ejector rod 2 326. When in a stationary state, the top ends of the ejector rods 1 323 and the ejector rod 2 326 will not exceed the lower mold bottom plate 41. In this embodiment, the length of the ejector rod 1 323 is set longer than the length of the ejector rod 2 326, and the upper ends of the ejector rod 1 323 and the ejector rod 2 326 are flush. When the ejector rod 1 323 and the ejector rod 2 326 are acted upon by the lower main cylinder, they will extend out of the first ejection hole provided on the lower mold bottom plate 41. In this embodiment, there are six ejector rings. The bottom of the ejector ring 45 is provided with a second ejection hole 356 that cooperates with the ejector rod 2 326. The ejector rod 2 326 is ejected from the second ejection hole 356 under the action of the secondary ejection cylinder. The ejector plate 47 extends out from the ejection hole 46, and a corresponding small ejector plate 47 is movably arranged in the ejector ring 355. The outer diameter of the small ejector plate 47 is smaller than the inner diameter of the ejector ring 355. When the ejector rod 326 extends out from the second ejector hole 46, the small ejector plate 47 will be lifted. At this time, the product and the lower mold ejector plate 44 are separated, and the second manipulator grabs the product and leaves. The small ejector plate 47 automatically falls back, and then the movable ends of the lower main cylinder 321 and the secondary ejector cylinder 324 are respectively withdrawn, the ejector block 322 and the secondary ejector block 325 return to their original positions, and the lower mold ejector plate 44 falls back into the square mold cavity 43; after completing a demoulding process, the upper plate surface of the small ejector plate 47 is flush with the upper plate surface of the lower mold ejector plate 44. This setting will make the lower end surface of the product smoother.

[0031] In this embodiment, the lower main cylinder 321 and the secondary ejection cylinder 324 are oil cylinders or air cylinders.

[0032] A weighing sensing device is provided on the square mold cavity 43. When the sensing device in the square mold cavity 43 senses that the weight of the material reaches the range set by the control system, a sound reminder will be issued and the feeding of the material will be stopped.

[0033] Example 3, reference Figure 1 and Figure 2 The feeding device 8 is composed of two groups, including a motor 1, a bracket 81, a conveyor belt 82 and a roller group. The upper end of the bracket 81 is provided with a roller group and a conveyor belt 82. The conveyor belt 82 rotates on the roller group. The roller group is driven by the motor 1, and the conveyor belt 82 extends into the top of the square mold cavity 43.

[0034] The feeding device 8 is installed on the side of the demoulding mechanism 3 to facilitate loading. The roller group is installed on the side plates at both ends of the bracket 81. The roller group includes an active roller and a driven roller. A sprocket drive is set between the active roller and the motor. The conveyor belt 82 fits tightly with the active roller. When the active roller rotates, it will drive the conveyor belt 82 to rotate. With the driven roller, the conveyor belt can rotate easily. When the material is transmitted on it, it will fall into the square mold cavity 43.

[0035] In this embodiment, the powder to be pressed can be pre-loaded in a powder storage box for storing powder. The switch of the powder storage box is electrically connected to the control system. The powder storage box transports the powder to be pressed to the conveyor belt 82 of the feeding device 8 through a pipeline. When the required powder weight reaches the preset standard, the weighing sensing device arranged on the square mold cavity 43 transmits a signal to the control system, and the powder storage box will also close its switch under the control of the control system to stop feeding.

[0036] In Example 4, a plurality of first limiting mechanisms and a plurality of second limiting mechanisms for limiting the lower mold bottom plate 41 are symmetrically arranged on both sides of the lower heating plate 23, the first limiting mechanisms limit the mold device 4 in the second demolding mechanism 6b, and the second limiting mechanisms limit the mold device 4 of the first demolding mechanism 6a.

[0037] Reference Figure 8 The first limiting mechanism and the second limiting mechanism have the same structure, including a limiting block 81, a spring and a groove. The lower end of the limiting block 81 is connected to the spring, and the lower end of the spring is connected to the groove. The limiting block can be completely overturned in the groove when pushed down.

[0038] In this embodiment, when the mold device in the first demolding mechanism 6a moves toward the inside of the hydraulic press, the first limiting mechanism arranged on the lower heating plate away from the side of the first demolding mechanism 6a will limit the position of the mold device 4, and when the mold device 4a in the first demolding mechanism 6a moves in, the second limiting mechanism will fall into the groove because it is connected by a spring, allowing the mold device 4a to pass through. When the mold device 4a moves out, the second limiting mechanism will pop out of the groove under the action of the spring. Similarly, when the mold device 4b in the second demolding mechanism 6b moves in, the first limiting mechanism will also fall into the groove to allow the mold device 4b in the second demolding mechanism 6b to pass through, and the second limiting mechanism will limit the mold device 4a in the second demolding mechanism 6b.

[0039] Embodiment 5, as Fig. 9 As shown, the pushing device includes a first sliding rod 91, a connecting rod 90, a second sliding rod 92, a vertical rod 93, an inclined rod 94, a pushing plate 95 and a driving mechanism. The first sliding rod 91, the connecting rod 90 and the second sliding rod 92 are connected by a joint shaft. The connecting rod 90 and the second sliding rod 92 can slide on the top of the vertical rod 93. The first sliding rod 91 slides on one end of the inclined rod 94. One end of the inclined rod 94 is rotatably connected to the vertical rod 93. A pushing plate 95 is fixed to the end of the second sliding rod 92.

[0040] During use, when the motor rotates the first sliding rod 91, it will pull the connecting rod 90 and the second sliding rod 92 to slide on the top of the vertical rod 93, and the first sliding rod 91 will slide on the top of the inclined rod 94, thereby driving the push plate 95 to level the material back and forth in the square mold cavity 43.

[0041] Another embodiment of the pushing device 9 is that a screw driven by a motor 3 is arranged next to the demolding device 3, the screw is parallel to the ground, and a push plate 1 is rotatably arranged on the screw, and the push plate 1 extends into the square mold cavity 43. The screw is driven by motor 3 to rotate, and the screw drives the push plate 1 to move back and forth in the square mold cavity 43 to flatten the material.

[0042] Example 6, reference Figure 10-12 A control method, including the above-mentioned automatic loading and demoulding dual-mold device control system, includes the following steps: First, fix the upper mold on the upper heating plate and the lower mold on the lower heating plate 23, and make sure the control system is normal and turned on. S1: The mold device 4 enters the hydraulic press 2; S2: The heating control system is turned on to preheat the mold device 4; S3: After heating is completed, the mold device 4 returns to the initial position; S4: The first manipulator sprays a release agent on the mold device 4; S5: The feeding device feeds the mold device 4; S6: The material pushing device 9 levels the material in the mold device 4; S7: The mold device 4 enters the hydraulic press 2; S8: Press, the movable crossbeam returns; S9: The mold device 4 exits along the original path; S10: demoulding; S11: The second robot grabs the finished product and leaves; Among them, the mold device 4 in S1 is the first mold device 4a. In S9, after the first mold device 4a exits, the second mold device 4b starts to run, returns to step S1, and repeats S1-S11. Subsequently, the first mold device 4a enters the hydraulic press 2 after the second mold device 4b performs step S9, and returns to step S1. The first mold device 4a and the second mold device 4b alternately circulate into the hydraulic press 2 for pressing operations.

[0043] S5 also includes: the sensing device in the square mold cavity 43 senses the weight, and when the weight set by the control system is reached, the feeding device 8 will not feed any more materials; S8 also includes: S81, after the product is pressed, the movable end of the ejection cylinder 22 lifts the movable crossbeam, driving the upper mold to rise, the upper mold and the square mold cavity 43 are separated, and the mold device 4 is taken out by the power output device 5; Also included in the S10: S101, the mold device 4 is moved out to the top of the support frame 31; the demoulding control system controls the movable ends of the two lower main cylinders 321 to extend, driving the entire ejection mechanism 32 to rise, and the ejector rod 1 323 and the ejector rod 2 326 lift the lower mold ejection plate 44 through the first ejection hole 42 on the lower mold bottom plate 41, and the lower mold ejection plate 44 drives the finished product to rise to the upper end surface of the square mold cavity 43; S102: At this time, the two lower main cylinders 321 remain stationary, and then the two secondary ejection cylinders 324 drive the second ejector rod 326 to extend into the second ejection hole 46 in the ejection ring 45, and lift the small ejector plate 47, so that the lower mold ejection plate 44 and the finished product are separated; In step S4, when the first manipulator sprays the release agent, the spray flow rate calculation formula of the release agent can be expressed as: ,in, is the volume of release agent required for one spray, T is the spraying time; and the volume of release agent required for one spray The calculation formula can be expressed as: ; Where A is the spray area and D is the spray thickness.

[0044] In this embodiment, the mold cavity is a square mold cavity, and the calculation formula of area A can be expressed as: , where L represents the length of the square mold cavity, W represents the width of the square mold cavity, and H represents the height of the square mold cavity.

[0045] In this embodiment, the detailed implementation of the above calculation formula can be realized by the following relevant data: Assuming that the L of the square mold cavity is 2.5 meters, W is 1.2 meters, and H is 0.4 meters, then its area A is: , Substitute area A into the above volume calculation formula, and set the spray thickness D to 0.005m. , Substitute the volume V into the spray flow calculation formula and assume the spray time is 5s, then , In S8, the calculation formula of the pressing force can be expressed as: , where K is a constant related to powder properties and molding conditions, t is the molding time, is the thickness of the powder layer, б is the flow stress of the powder, and V is the volume of the mold cavity.

[0046] In this embodiment, the detailed implementation of the pressing force can be realized by the following related data: Assume that the constant K is 0.5, the molding time t is 30 seconds, and the powder layer thickness is is 0.05 m, and the flow stress of the powder is 50×10 6Pa, the volume V of the cavity is 0.01 cubic meters, substitute it into the formula, , The working principle of the present invention is: Fig.12 , first install all the equipment, fix the upper mold on the upper heating plate, ensure that all systems and networks are in normal use, start the system first, the first mold device 4a enters the hydraulic press 2 under the drive of the motor 51, and the limit block 24 on the right side of the hydraulic press 2 limits the lower mold bottom plate 41; the information processing module transmits, processes and outputs the signal, and the heating control system controls the upper heating plate and the lower heating plate 23 to preheat the first mold device 4a, the preheating temperature is above 150 degrees, and after reaching the set temperature, the information processing module transmits, processes and outputs the signal, and the motor control system moves the first mold device 4a out; The first mold device 4a moves to the mold stopper 316 on the support frame 31 and stops. The first manipulator sprays the mold release agent after sensing the first mold device 4a. After the spraying is completed, the information processing module transmits, processes and outputs the signal, and the feeding device 8 starts to automatically load the material. When the loaded material reaches the weight set by the control system, the loading stops. After that, the signal is transmitted, processed and outputted by the information processing module, and the material pushing control system receives the information, and the material pushing device 9 starts pushing the material. After the material is pushed flat, the signal is transmitted to the motor control system, and the motor 51 moves the first mold device 4a into the hydraulic press 2. The hydraulic press 2 receives the signal and starts pressing. The upper mold presses the material in the square mold cavity 43, maintains the pressure, and releases the pressure. After the pressing is completed, the three main cylinders on the upper beam of the hydraulic press 2 are retracted; Then the ejection cylinder 22 receives the signal and starts to lift the movable beam, driving the upper mold to rise, and the upper mold and the square mold cavity 43 are separated; After the motor control system receives the information that the upper mold and the square mold cavity 43 are separated, it controls the motor 51 to take out the first mold device 4a and move it out to the mold stopper 316 on the support frame 31 to stop; after the demoulding control system receives the signal that the first mold device 4 is to be demoulded, it controls the movable ends of the two lower main cylinders 321 to extend, driving the entire ejection mechanism 32 to rise, and the ejector rod 1 323 and the ejector rod 2 326 lift the lower mold ejection plate 44 through the first ejection hole 42 on the lower mold bottom plate 41, and the lower mold ejection plate 44 drives the upper mold 4a to be ejected. The product rises to the upper end surface of the square mold cavity; at this time, the two lower main cylinders 321 remain stationary, and then the two secondary ejection cylinders 324 drive the second ejector rod 326 to extend into the second ejection hole 46 in the top ring 45, lift the small ejector plate 47, and the lower mold ejector plate 44 is separated from the product; after receiving the removal information of the first mold device 4a, the second mold device 4b begins to enter the hydraulic press 2 for preheating steps. Similarly, it can be understood that the steps of pressing the product in the second mold device 4b are the same as those in the first mold device 4a. The first mold device 4a and the second mold device 4b are respectively cycled in the hydraulic press 2 for pressing operations.

[0047] The steps described above receive, transmit, process and output signals through the information processing module respectively through the motor control system, heating control system, hydraulic control system, demoulding control system and robot control system, so that different control systems can operate in an orderly manner, improve the level of automation, reduce labor costs and improve work efficiency.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A control system for a dual-mold device for automatic loading and demoulding, comprising a foundation surface (1) and a hydraulic press (2), wherein the recessed space of the foundation surface forms an installation space for the hydraulic press (2) and a demoulding mechanism; the hydraulic press (2) comprises an upper crossbeam, a main cylinder arranged on the upper crossbeam, a movable crossbeam, a lower crossbeam (21) and a column, wherein the upper crossbeam, the movable crossbeam and the lower crossbeam (21) are arranged on the hydraulic press (2) in sequence and connected by the column; ejection cylinders (22) for lifting the movable crossbeam are symmetrically arranged on both sides of the lower crossbeam (21); an electrical cabinet (6) is arranged on one side of the hydraulic press (2), and a control console (7) is arranged next to the electrical cabinet (6); an upper heating plate is fixedly arranged on the lower plate surface of the movable crossbeam (21), and a lower heating plate (23) is fixedly connected to the upper plate surface of the lower crossbeam (21), characterized in that: A mold device (4) is slidably arranged on the demoulding mechanism (3), the demoulding mechanism (3) comprises a first demoulding mechanism (3a) and a second demoulding mechanism (3b) having the same structure, the mold device (4) comprises a first mold device (4a) and a second mold device (4b) having the same structure, the first demoulding mechanism (3a) and the second demoulding mechanism (3b) are respectively arranged on both sides of the hydraulic press (2), the first mold device (4a) and the second mold device (4b) are respectively arranged on the upper ends of the first demoulding mechanism (3a) and the second demoulding mechanism (3b), the first mold device (4a) moves back and forth between the first demoulding mechanism (3a) and the hydraulic press (2), and the second mold device (4b) moves back and forth between the first demoulding mechanism (3a) and the hydraulic press (2), b) moving back and forth between the second demoulding mechanism (3b) and the hydraulic press (2), the side ends of the first demoulding mechanism (3a) and the second demoulding mechanism (3b) are respectively provided with a feeding device (8), the opposite side of the feeding device (8) is provided with a pushing device (9), and the front ends of the first demoulding mechanism (3a) and the second demoulding mechanism (3b) are both provided with a first manipulator and a second manipulator; the feeding device (8) is used to feed material into the mold device (4), the pushing device (9) is used to level the material in the mold device (4), the demoulding mechanism (3) is used to eject the finished product pressed in the mold device (4), the first manipulator is used to spray a demoulding agent, and the second manipulator is used to grab the finished product; The control system further comprises a motor control system, a heating control system, a hydraulic control system, a demoulding control system and a robot control system. The motor control system controls the mold device (4), the feeding device (8) and the pushing device (9). The heating control system controls the upper heating plate and the lower heating plate (23). The hydraulic control system controls the main cylinder and the ejection cylinder (22) of the hydraulic press. The demoulding control system controls the demoulding mechanism (3). The robot control system controls the first manipulator and the second manipulator.

2. A control system for a dual-mold device for automatic loading and demoulding according to claim 1, characterized in that: The mold device (4) comprises a lower mold base plate (41), a lower mold ejector plate (44), and a square mold cavity (43); a hollow square mold cavity (43) is provided on the lower mold base plate (41), and a lower mold ejector plate (44) is provided in the square mold cavity (43); The mold device (4) is also provided with a power output device (5) for driving the movement thereof: the power output device (5) comprises a guide rail (53), a gear bar (52), a motor (51), a gear shaft and a gear, wherein the guide rail (53) is symmetrically arranged on the lower end surface of the lower mold bottom plate (41), one end of the two guide rails (53) is fixedly connected to the side of the lower heating plate (23), and the other end is supported by a telescopic support column respectively arranged below the other end, the telescopic support column penetrates the demoulding mechanism (3) and extends downward to the ground, two parallel gear bars (52) are symmetrically arranged on the outer sides of the two guide rails (53), the two gear bars (52) are fixedly connected to the lower mold bottom plate (41), the two gear bars (52) are meshed with the gear, the gear is sleeved on both ends of the gear shaft, and the gear shaft is connected to the output end of the motor (51).

3. The automatic loading and demoulding dual-mold device control system according to claim 2 is characterized in that: The lower mold bottom plate (41) is provided with a first ejection hole (42), the lower mold ejection plate (44) is symmetrically provided with a plurality of downwardly concave top rings (45) at intervals, the bottom of the top ring (45) is provided with a second ejection hole (46), a small ejection plate (47) is movably provided in the top ring (45), the upper plate surface of the small ejection plate (47) is flush with the upper plate surface of the lower mold ejection plate (44), and a weighing induction device is provided on the square mold cavity (43).

4. The automatic loading and demoulding dual-mold device control system according to claim 1 is characterized in that: The feeding device (8) comprises two groups, including a motor 1, a bracket (81), a conveyor belt (82) and a roller group. A roller and a conveyor belt (82) are arranged on the upper end of the bracket. The conveyor belt (82) rotates on the roller group. The conveyor belt (82) is driven by motor 1.

5. The automatic loading and demoulding dual-mold device control system according to claim 1 is characterized in that: A plurality of first limiting mechanisms and second limiting mechanisms for limiting the mold device (4) are symmetrically arranged on both side edges of the lower heating plate (23), the first limiting mechanisms limiting the second mold device (4b), and the second limiting mechanisms limiting the first mold device (4a).

6. A control system for a dual-mold device for automatic loading and demoulding according to claim 5, characterized in that: The first limiting mechanism and the second limiting mechanism have the same structure, comprising a limiting block (24), a spring and a groove, the lower end of the limiting block (24) being connected to the spring, the lower end of the spring being connected in the groove, and the limiting block (24) being able to completely fall in the groove when pushed down.

7. The automatic loading and demoulding dual-mold device control system according to claim 1 is characterized in that: The pusher device (9) comprises a first sliding rod (91), a connecting rod (90), a second sliding rod (92), a vertical rod (93), an inclined rod (94), a push plate (95) and a second motor. The first sliding rod (91), the connecting rod (90) and the second sliding rod (92) are connected via a joint shaft. The connecting rod (90) and the second sliding rod (92) can slide on the top of the vertical rod (93). The first sliding rod (91) slides on one end of the inclined rod (94). One end of the inclined rod (94) is rotatably connected to the vertical rod (93). The push plate (95) is fixed to the end of the second sliding rod (92).

8. A control method, comprising the control system of a dual-mold device for automatic loading and demoulding as described in claims 1 to 7, comprising the following steps: First, fix the upper mold on the upper heating plate and the lower mold on the lower heating plate (23). Make sure the control system is normal and turned on. S1: The mold device (4) enters the hydraulic press (2); S2: The heating control system is turned on to preheat the mold device (4); S3: After heating is completed, the mold device (4) returns to the initial position; S4: the first robot sprays a mold release agent on the mold device (4); S5: the feeding device (8) feeds the mold device (4); S6: The material pushing device levels the material in the mold device (4); S7: the mold device (4) enters the hydraulic press; S8: Press, the movable crossbeam returns; S9: The mold device (4) exits along the original path; S10: demoulding; S11: The second robot grabs the finished product and leaves; The mold device (4) in S1 is the first mold device (4a). In S9, after the first mold device (4a) exits, the second mold device (4b) starts to operate, and the process returns to step S1, and S1-S11 are repeated. Subsequently, the first mold device (4a) enters the hydraulic press (2) again after the second mold device (4b) performs step S9, and the process returns to step S1. The first mold device (4a) and the second mold device (4b) enter the hydraulic press alternately in a cycle to perform a pressing operation.

9. A control method according to claim 8, characterized in that: The S5 also includes that the sensing device in the square mold cavity (43) senses the weight, and when the weight set by the control system is reached, the feeding device (8) will stop feeding any more material.

10. A control method according to claim 8, characterized in that: In S7, the calculation formula of the pressing force can be expressed as: , where K is a constant related to powder properties and molding conditions, t is the molding time, is the thickness of the powder layer, б is the flow stress of the powder, and V is the volume of the mold cavity.

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