Flexible automatic material distribution system of friction press

Abstract

The utility model provides a flexible automatic material distribution system of a friction press. The flexible automatic material distribution system comprises an automatic weighing mechanism and an automatic material distribution mechanism, the automatic weighing mechanism comprises a weighing rack, and a storage hopper, a discharging hopper, a belt conveyor and a weighing hopper assembly are installed on the weighing rack from top to bottom. The automatic distributing mechanism comprises a manipulator; a distributing frame is mounted at the tail end of the manipulator; a material distribution hopper, a floating polishing mechanism, a four-corner material pulling mechanism, an oil spraying mechanism and a mold position detecting device are installed on the material distribution frame. The automatic polishing machine integrates the functions of automatic weighing, automatic discharging, automatic polishing, automatic material pulling, automatic oil spraying, automatic position detection and the like, and is complete in function, high in automation degree, high in flexibility and good in adaptability.

Description

Technical Field

[0001] The utility model relates to the field of friction presses, in particular to a flexible automatic material distribution system of a friction press. Background Art

[0002] At present, the pressing process of refractory friction presses on site generally adopts manual feeding, but there are problems such as harsh environment, loud noise, high labor intensity and low efficiency. There are also some individual feeding equipment on the market, but these feeding equipment have defects such as low flexibility and complex operation.

[0003] Therefore, it is necessary to design a fully automated material distribution system with automatic weighing and automatic material distribution to cooperate with the friction press to solve the above problems. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a flexible automatic material distribution system for a friction press, which has the characteristics of complete functions, high degree of automation, high flexibility and good adaptability.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A flexible automatic material distribution system for a friction press comprises an automatic weighing mechanism and an automatic material distribution mechanism.

[0007] The automatic weighing mechanism includes a weighing frame, on which a storage hopper, a lower hopper, a belt conveyor and a weighing hopper assembly are installed from top to bottom; the storage hopper and the lower hopper are both fixed on the weighing frame, the upper end of the lower hopper is connected to the lower end of the storage hopper, and two symmetrically arranged stirring screws are rotatably arranged in the lower hopper, and the stirring screws are transmission-connected with a screw driving device for driving the stirring screws to rotate, and the two stirring screws are used to prevent material bridging, and a level sensor for sensing the material level is also arranged in the lower hopper, at least one vibration motor is fixed on the outer side of the lower hopper, and a discharge port is provided at the lower end of the lower hopper; the belt conveyor includes a conveying frame horizontally fixed on the weighing frame, rollers are rotatably arranged at both ends of the conveying frame, and conveyor belts are arranged on the outer covers of the two rollers, and one of the rollers is provided with a conveyor belt. The conveyor frame is dynamically connected with a conveyor belt driving device for driving its rotation, and a material control gate located above the conveyor belt is provided at the discharge end of the conveyor frame. The material control gate is transmission-connected with a material control gate driving device for driving the material control gate to control the amount of material discharged from the conveyor belt; the weighing bucket assembly includes two slide rails symmetrically fixed on the weighing frame, and the direction of the slide rails is the same as the feeding direction of the conveyor belt. A sliding frame is slidingly arranged on the slide rails, and the sliding frame is transmission-connected with a moving driving device for driving the sliding frame to move along the slide rails. A number of weighing sensors are fixed on the upper end surface of the sliding frame, and a weighing bucket is installed on the weighing sensor. The weighing bucket is located below the discharge end of the conveyor belt, and an openable and closable discharge gate is provided at the bottom of the weighing bucket, and the discharge gate is transmission-connected with a discharge gate driving device for driving the discharge gate to open and close.

[0008] The automatic material distribution mechanism includes a manipulator, and a material distribution frame is installed at the end of the manipulator; a material distribution hopper, a floating grinding mechanism, a four-corner material pulling mechanism, an oil injection mechanism and a mold position detection device are installed on the material distribution frame, and the manipulator is used to drive the material distribution hopper to the bottom of the weighing hopper to receive the material and then move it to the mold position; the material distribution hopper includes a hopper body, and the hopper body is fixed on the material distribution frame, and a material distribution port is opened at the lower end of the hopper body, and an openable and closable material distribution gate is arranged on the material distribution port, and the material distribution gate transmission is connected to a material distribution gate driving device for controlling the opening and closing of the material distribution gate; the floating grinding mechanism includes an upper mounting plate and a lower mounting plate, and the two ends of the upper mounting plate and the lower mounting plate are connected by a spring floating device, an upward upper motor is installed on the upper mounting plate, and an upper grinding plate is installed on the rotating shaft of the upper motor, and a downward lower motor is installed on the lower mounting plate, and a lower grinding plate is installed on the rotating shaft of the lower motor. The upper motor and the lower motor are both located between the upper mounting plate and the lower mounting plate, and the upper grinding sheet and the lower grinding sheet are used for grinding the upper mold and the lower mold respectively; the four-corner pulling mechanism includes a pulling tip for pulling materials from the lower mold, and the pulling tip is transmission-connected with a pulling tip driving device for driving the pulling tip to perform the pulling action; the oil injection mechanism includes a nozzle fixing frame, which is fixed on the material distribution frame, and the nozzle fixing frame has an upper nozzle and a lower nozzle facing upward and downward, an upper nozzle valve is connected to the upper nozzle, and a lower nozzle valve is connected to the lower nozzle, and the upper nozzle and the lower nozzle are used for spraying oil on the upper mold and the lower mold; the mold position detection device includes a detection fixing frame, which is fixed on the material distribution frame, and a position sensor for sensing the mold position is installed on the detection fixing frame, and also includes an air blowing head for blowing and cleaning the position sensor.

[0009] Furthermore, the screw driving device is a reduction motor, a first sprocket is fixed on the output shaft of the reduction motor, a second sprocket matching the first sprocket is fixed to one end of the stirring screw, and the first sprocket and the second sprocket are connected by a chain transmission; the conveyor belt driving device is a reduction motor 1; the mobile driving device includes a servo motor and a rack, the servo motor is fixedly connected to one of the slide rails through a mounting frame, a gear is fixedly connected to the output shaft of the servo motor, the rack is fixedly connected to the sliding frame, and the gear is meshed with the rack.

[0010] Furthermore, the material control gate is a U-shaped plate, which is fixedly connected to a rotating shaft leading to both ends, and both ends of the rotating shaft are rotatably connected to the conveying frame; the material control gate driving device includes a cylinder, the cylinder body end of the cylinder is hinged on the connecting plate, the connecting plate is fixedly connected to the conveying frame, the push rod end of the cylinder is hinged to one end of the push rod, and the other end of the push rod is fixedly connected to one end of the rotating shaft.

[0011] Furthermore, a plurality of unpowered rollers are arranged in the conveyor belt, the unpowered rollers are parallel to the rollers, and both ends of the unpowered rollers are rotatably connected to the conveyor frame; a dust guard plate is fixed on the discharge end of the conveyor frame, and the dust guard plate is arranged at intervals from the conveyor belt.

[0012] Furthermore, the storage hopper is a cylindrical hopper body, and the lower hopper is a hopper that is larger at the top and smaller at the bottom; and a plurality of sliding blocks that cooperate with the slide rails are fixed on the sliding frame.

[0013] Furthermore, the material distribution gate includes two revolving door bodies rotatably connected to the lower part of the bucket body; the material distribution gate driving device includes a cylinder 1, the push rod end of the cylinder 1 is fixedly connected to the middle part of a connecting rod, the two ends of the connecting rod are respectively hinged with a push rod, and the other end of the push rod is respectively hinged to a revolving door body, and the cylinder 1 drives the revolving door body to rotate and open and close through the connecting rod and the push rod.

[0014] Furthermore, the spring floating device includes two groups of upper floating heads and lower floating heads, which are connected by an intermediate mounting plate; the upper floating head includes a spring, an upper floating seat and a lower floating seat, the upper floating seat includes an upper plate and a guide sleeve fixed downward on the upper plate, the lower floating seat includes a lower plate and a guide slide column fixed upward on the lower plate, the guide slide column slides in the guide sleeve, the spring is sleeved outside the guide sleeve, the two ends of the spring are in contact with the upper plate and the lower plate respectively, the upper plate and the lower plate are fixed on the upper mounting plate and the intermediate mounting plate respectively; the structure of the lower floating head is the same as that of the upper floating head.

[0015] The cam is hinged on the side panels of the U-shaped upper frame and is hinged on the side panels of the U-shaped lower frame, and the upper ends of the two first material pushing rods are connected by a first connecting rod, and the two ends of the first connecting rod are slidably arranged in the first sliding groove, and the first connecting rod is transmission connected to the cylinder second, and the lower end of the first material pushing rod is hinged on the side panels of the U-shaped lower frame, and the upper end of the second material pushing rod is hinged on the side panels of the U-shaped upper frame, and the lower end of the second material pushing rod is connected to a sliding rod, which is slidably arranged in the second sliding groove, and the material pulling tip is detachably connected to the bottom middle of the U-shaped lower frame.

[0016] Furthermore, the push rod end of the second cylinder is connected to the first connecting rod through a fisheye rod end joint bearing, and the cylinder body of the second cylinder is fixedly connected to the U-shaped upper frame through an angle iron second.

[0017] Furthermore, the U-shaped upper frame and the U-shaped lower frame are both U-shaped plates, and the U-shaped plates include an end plate and two side plates vertically fixed on opposite sides of the end plate; the upper motor and the lower motor are both pneumatic motors; the pulling tip includes a head body and a tip fixed at the bottom of the head body, and the tip is a triangular head, a regular quadrilateral cone head or a regular hexagonal cone head; the four-corner pulling mechanism, the oil injection mechanism and the mold position detection device are covered with a protective cover, and the protective cover is provided with an avoidance opening for avoiding the upper nozzle, the lower nozzle, the position sensor and the pulling tip.

[0018] The beneficial effects of the utility model: the utility model integrates the functions of automatic weighing, automatic unloading, automatic grinding, automatic pulling, automatic oil injection, automatic position detection and the like, and has complete functions, high degree of automation, high flexibility and good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 This is a diagram of the use state of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the automatic cloth distributing mechanism;

[0022] Figure 3 This is a three-dimensional picture of the automatic fabric distribution mechanism without the manipulator;

[0023] Figure 4 for Figure 3 Stereoscopic image after removing the protective cover;

[0024] Figure 5 It is a structural schematic diagram of the material distributing hopper in the automatic material distributing mechanism;

[0025] Figure 6 It is a three-dimensional diagram of the floating grinding mechanism in the automatic material distribution mechanism;

[0026] Figure 7 It is a structural schematic diagram of the four-corner material extraction mechanism in the automatic material distribution mechanism;

[0027] Figure 8 It is a three-dimensional diagram of the four-corner material extraction mechanism in the automatic material distribution mechanism;

[0028] Fig. 9 for Figure 8 The three-dimensional image after removing the U-shaped shelf;

[0029] Fig.10 It is a three-dimensional diagram of the oil injection mechanism in the automatic fabric distribution mechanism;

[0030] Fig.11 It is a structural schematic diagram of the mold position detection device in the automatic cloth mechanism.

[0031] Fig.12 It is a three-dimensional diagram of the automatic weighing mechanism;

[0032] Fig.13 A three-dimensional diagram of the automatic weighing mechanism from another angle;

[0033] Fig.14 It is a three-dimensional diagram of the lower hopper in the automatic weighing mechanism;

[0034] Fig.15 It is a three-dimensional diagram of the belt conveyor in the automatic weighing mechanism;

[0035] Fig.16 It is a three-dimensional diagram of the material control gate in the automatic weighing mechanism;

[0036] Fig.17 It is a three-dimensional diagram of the weighing bucket assembly in the automatic weighing mechanism.

[0037] The attached numbers in the figure are: 11-manipulator, 12-feeding rack, 13-protective cover, 2-feeding bucket, 3-floating grinding mechanism, 4-four-corner pulling mechanism, 5-oil injection mechanism, 6-mold position detection device, 21-bucket body, 22-revolving door body, 23-cylinder 1, 24-connecting rod, 25-pushing rod, 26-vibration motor, 31-upper mounting plate, 32-lower mounting plate, 33-upper motor, 34-upper grinding sheet, 35-lower motor, 36-lower grinding sheet, 37-upper floating head, 371-spring, 372-upper floating seat, 3721-upper plate, 3722-guide sliding sleeve, 373-lower floating seat, 3731-lower plate, 3732-guide sliding column, 38-lower floating head, 39-mounting plate, 41-pulling tip, 411-head body, 412-tip, 42-U-shaped upper frame, 421-first slide groove, 43-U-shaped lower frame, 431-second slide groove, 44-first material push rod, 45-second material push rod, 46-first connecting rod, 47-cylinder 2, 471-fisheye rod end joint bearing, 472-angle iron 2, 48-sliding rod, 51-nozzle fixing frame, 52-upper nozzle, 53-lower nozzle, 54-upper nozzle valve, 55-lower nozzle valve, 61-detection fixing frame, 62-position sensor, 63-blowing head, 701-weighing frame, 702-storage hopper, 7-lower hopper, 8-belt conveyor, 9-weighing hopper assembly, 71-stirring screw, 72-level meter , 73-vibration motor, 74-reduction motor, 75-first sprocket, 76-second sprocket, 80-dust shield, 81-conveyor rack, 82-roller, 83-conveyor belt, 84-unpowered roller, 85-reduction motor 1, 86-U-shaped plate, 87-cylinder, 88-connecting plate, 89-push rod, 91-slide rail, 92-slide rack, 93-weighing sensor, 94-weighing bucket, 95-servo motor, 96-rack, 97-mounting rack, 98-slider. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Reference Figure 1 A flexible automatic material distribution system for a friction press comprises an automatic weighing mechanism A and an automatic material distribution mechanism B.

[0040] Reference Figure 2-11The automatic material distributing mechanism B comprises a manipulator 11, a material distributing frame 12 is installed at the end of the manipulator 11; a material distributing hopper 2, a floating grinding mechanism 3, a four-corner material pulling mechanism 4, an oil injection mechanism 5 and a mold position detection device 6 are installed on the material distributing frame 12; the material distributing hopper 2 comprises a bucket body 21, the bucket body 21 is fixed on the material distributing frame 12, a material distributing opening is opened at the lower end of the bucket body 21, and a material distributing gate which can be opened and closed is arranged on the material distributing gate, and the material distributing gate transmission is connected to a material distributing mechanism which controls the opening and closing of the material distributing gate. The material gate driving device; the floating grinding mechanism 3 includes an upper mounting plate 31 and a lower mounting plate 32, the two ends of the upper mounting plate 31 and the lower mounting plate 32 are connected by a spring floating device, an upward upper motor 33 is installed on the upper mounting plate 31, an upper grinding plate 34 is installed on the rotating shaft of the upper motor 33, a downward lower motor 35 is installed on the lower mounting plate 32, a lower grinding plate 36 is installed on the rotating shaft of the lower motor 35, and the upper motor 33 and the lower motor 35 are both located on the upper mounting plate 31 and the lower mounting plate 32, the upper grinding sheet 34 and the lower grinding sheet 36 are used to grind the upper die and the lower die respectively; the four-corner pulling mechanism 4 includes a pulling tip 41 for pulling materials in the lower die, and the pulling tip 41 is transmission-connected with a pulling tip driving device for driving the pulling tip to pull materials; the oil injection mechanism 5 includes a nozzle fixing frame 51, the nozzle fixing frame 51 is fixed on the material distribution frame 12, the nozzle fixing frame 51 has an upper nozzle 52 and a lower nozzle 53 facing upward and downward, the upper nozzle 52 is connected to an upper nozzle valve 54, and the lower nozzle 53 is connected to a lower nozzle valve 55, the upper nozzle 52 and the lower nozzle 53 are used to spray oil on the upper die and the lower die; the mold position detection device 6 includes a detection fixing frame 61, the detection fixing frame 61 is fixed on the material distribution frame 12, the detection fixing frame 61 is installed with a position sensor 62 for sensing the mold position, and also includes an air blowing head 63 for blowing and cleaning the position sensor 62.

[0041] As a further embodiment, the material distributing gate includes two revolving gate bodies 22 rotatably connected to the lower part of the bucket body; the material distributing gate driving device includes a cylinder 23, the push rod end of the cylinder 23 is fixedly connected to the middle part of a connecting rod 24, the two ends of the connecting rod 24 are respectively hinged with a push rod 25, and the other end of the push rod 25 is respectively hinged to a revolving gate body 22, and the cylinder 23 drives the revolving gate body 22 to rotate and open and close through the connecting rod 24 and the push rod 25. At least one vibration motor 26 is also fixed on the bucket body 21.

[0042] As a further embodiment, the spring floating device includes two groups of upper floating heads 37 and lower floating heads 38 , and the upper floating heads 37 and the lower floating heads 38 are connected by an intermediate mounting plate 39 .

[0043] Among them, the upper floating head 37 includes a spring 371, an upper floating seat 372 and a lower floating seat 373. The upper floating seat 372 includes an upper plate 3721 and a guide sleeve 3722 fixed downward on the upper plate 3721. The lower floating seat 373 includes a lower plate 3731 and a guide slide column 3732 fixed upward on the lower plate 3731. The guide slide column 3732 is slidably sleeved in the guide sleeve 3722, and the spring 371 is sleeved outside the guide sleeve 3722. The two ends of the spring 371 are respectively in contact with the upper plate 3721 and the lower plate 3731. The upper plate 3721 and the lower plate 3731 are respectively fixed on the upper mounting plate 31 and the intermediate mounting plate 39; the structure of the lower floating head 38 is the same as that of the upper floating head 37.

[0044] Among them, the middle mounting plate 39 is an angle iron I, which is fixedly mounted on the material distribution rack 12; the upper motor 33 and the lower motor 35 are both pneumatic motors.

[0045] As a further implementation scheme, the material-pulling tip driving device includes a U-shaped upper frame 42 with an opening facing downward and a U-shaped lower frame 43 with an opening facing upward. Two symmetrical X-shaped rod assemblies are arranged in the U-shaped upper frame 42. The X-shaped rod assembly includes a first material-pulling push rod 44 and a second material-pulling push rod 45 connected in an X shape. The middle parts of the first material-pulling push rod 44 and the second material-pulling push rod 45 are hinged. The X-shaped rod assembly is parallel to the side panels of the U-shaped upper frame 42. The two side panels of the U-shaped upper frame 42 are provided with horizontally symmetrical first sliding grooves 421, and the two side panels of the U-shaped lower frame 43 are provided with horizontally symmetrical second sliding grooves 421. The slide groove 431, the upper ends of the two first material pushing rods 44 are connected by the first connecting rod 46, the two ends of the first connecting rod 46 are slidably arranged in the first slide groove 421, the first connecting rod 46 is transmission-connected with the cylinder 2 47, the lower end of the first material pushing rod 44 is hinged on the side plate of the U-shaped lower frame 43, the upper end of the second material pushing rod 45 is hinged on the side plate of the U-shaped upper frame 42, the lower end of the second material pushing rod 45 is connected with a sliding rod 48, the sliding rod 48 is slidably arranged in the second slide groove 431, and the material pulling tip 41 is detachably connected to the middle of the bottom of the U-shaped lower frame 43.

[0046] The U-shaped upper frame 42 and the U-shaped lower frame 43 are both U-shaped plates, and the U-shaped plates include an end plate and two side plates vertically fixed on opposite sides of the end plate.

[0047] The push rod end of the second cylinder 47 is connected to the first connecting rod 46 through a fisheye rod end joint bearing 471, and the cylinder body of the second cylinder 47 is fixedly connected to the U-shaped upper frame 42 through an angle iron 472.

[0048] The drawing tip 41 includes a head body 411 and a tip 412 fixed at the bottom of the head body, and the tip 412 is a triangular head, a regular quadrilateral cone head or a regular hexagonal cone head.

[0049] As a further implementation scheme, the four-corner pulling mechanism 4, the oil injection mechanism 5 and the mold position detection device 6 are covered with a protective cover 13, and the protective cover 13 is provided with an escape opening for avoiding the upper nozzle 52, the lower nozzle 53, the position sensor 62 and the pulling tip 41.

[0050] Reference Figure 12-17 The automatic weighing mechanism A includes a weighing frame 701, on which a storage hopper 702, a lower hopper 7, a belt conveyor 8 and a weighing hopper assembly 9 are installed from top to bottom; the storage hopper 702 and the lower hopper 7 are both fixed on the weighing frame 701, and the upper end of the lower hopper 7 is connected to the lower end of the storage hopper 702. Two symmetrically arranged stirring screws 71 are rotatably arranged in the lower hopper 7, and the stirring screws 71 are transmission-connected with a screw driving device for driving the stirring screws to rotate. The two stirring screws 71 are used to prevent material bridging. A level sensor 72 for sensing the material level is also arranged in the lower hopper 7. At least one vibration motor 73 is fixed on the outer side of the lower hopper 7, and a material discharge port is opened at the lower end of the lower hopper 7; the belt conveyor 8 includes a conveying frame 81 horizontally fixed on the weighing frame, and rollers 82 are rotatably arranged at both ends of the conveying frame 81. The two rollers 82 are covered with conveyor belts 83. One of the rollers 82 is transmission-connected to a conveyor belt driving device for driving its rotation, and a material control gate located above the conveyor belt 83 is provided at the discharge end of the conveyor frame 81, and the material control gate is transmission-connected to a material control gate driving device for driving the material control gate to control the amount of material discharged from the conveyor belt; the weighing bucket assembly 9 includes two slide rails 91 symmetrically fixed on the weighing frame, and the direction of the slide rails 91 is the same as the feeding direction of the conveyor belt 93. A sliding frame 92 is slidingly arranged on the slide rails 91, and the sliding frame 92 is transmission-connected to a moving driving device for driving the sliding frame 92 to move along the slide rails 91. A plurality of weighing sensors 93 are fixed to the upper end surface of the sliding frame 92, and a weighing bucket 94 is installed on the weighing sensor 93. The weighing bucket 94 is located below the discharge end of the conveyor belt 83, and an openable and closable discharge gate is provided at the bottom of the weighing bucket 94, and the discharge gate is transmission-connected to a discharge gate driving device for driving the discharge gate to open and close.

[0051] As a further implementation scheme, the storage hopper 702 is a cylindrical hopper body, and the lower hopper 7 is a hopper body that is larger at the top and smaller at the bottom.

[0052] As a further implementation scheme, the screw driving device is a reduction motor 74, a first sprocket 75 is fixed on the output shaft of the reduction motor 74, a second sprocket 76 that cooperates with the first sprocket 75 is fixed at one end of the stirring screw 71, and the first sprocket 75 and the second sprocket 76 are connected by a chain transmission.

[0053] As a further implementation scheme, a plurality of unpowered rollers 84 are arranged in the conveyor belt 83. The unpowered rollers 84 are parallel to the rollers 82, and both ends of the unpowered rollers 84 are rotatably connected to the conveyor frame.

[0054] As a further implementation scheme, the conveyor belt driving device is a reduction motor 85.

[0055] As a further implementation scheme, the material control gate is a U-shaped plate 86, which is fixedly connected with a rotating shaft leading to both ends, and the two ends of the rotating shaft are rotatably connected to the conveying frame 81; the material control gate driving device includes a cylinder 87, the cylinder body end of the cylinder is hinged on the connecting plate 88, and the connecting plate 88 is fixedly connected to the conveying frame 81, the push rod end of the cylinder 87 is hinged to one end of the push rod 89, and the other end of the push rod 89 is fixedly connected to one end of the rotating shaft.

[0056] As a further implementation scheme, the mobile drive device includes a servo motor 95 and a rack 96. The servo motor is fixedly connected to one of the slide rails 91 through a mounting frame 97. A gear is fixedly connected to the output shaft of the servo motor 95. The rack 96 is fixedly connected to the sliding frame 92, and the gear is meshed with the rack 96.

[0057] As a further implementation scheme, a dust shield 80 is also fixed on the discharge end of the conveying frame 81, and the dust shield 80 is arranged at an interval from the conveying belt 83.

[0058] As a further embodiment, the discharge gate structure is the same as the material distribution gate, and the discharge gate driving device is the same as the material distribution gate driving device.

[0059] As a further embodiment, the sliding frame 92 is fixed with a plurality of sliding blocks 98 that cooperate with the sliding rails 91 .

[0060] The working process of this utility model:

[0061] like Figure 1-17When in use, the automatic weighing mechanism A and the automatic material distribution mechanism are respectively arranged on the surrounding sides of the friction press C. There are various arrangements according to needs. They can be on the same side or on different sides. One group can correspond to one friction press C, or two groups can correspond to one friction press C. During use, the on-site operator hoists the powdered material into the storage hopper 702, and the material enters the lower hopper 7 from the storage hopper 702, and enters the conveyor belt 83 below under the action of the stirring screw 71. The use of double stirring screws 71 can prevent bridging caused by stacking pressure, and the material discharge is smoother. The vibration motor 73 can prevent the material from sticking to the inner wall of the lower hopper 7. The level sensor 72 can detect whether it has reached the position where material addition is required, and realize automatic material addition detection. The conveyor belt 83 transports the material forward and drops it into the weighing hopper 94. The weighing hopper 94 moves back and forth along the slide rail 91 in a small range to receive the material under the drive of the servo motor 95 to prevent material segregation. At the same time, the weighing sensor 93 detects the weight of the material in the weighing hopper 94. When the material in the weighing hopper 94 is about to reach the specified weight, the cylinder drives the U-shaped plate 86 to rotate, so that the interval between the U-shaped plate 86 and the conveyor belt 83 is reduced. The conveyor belt 83 is slowed down to realize fine control and ensure that the weighing bucket 94 weighs more accurately. After weighing, the weighing bucket 94 moves to the end, and the manipulator 11 drives the material distribution hopper 2 to move below the weighing bucket 94, opens the discharge gate, and allows the material in the weighing bucket 94 to enter the next material distribution hopper 2. Then the manipulator 11 drives the material distribution frame 12 to move to the mold position, and the mold position detection device 6 detects the mold position. After the position is accurate, the floating grinding mechanism 3 grinds the mold cavity of the upper mold and the lower mold, and the oil injection mechanism 5 performs oil injection. After the oil injection is completed, the revolving door body 22 on the material distribution hopper 2 is opened, and the material is discharged to the center of the mold cavity. The air blowing head 63 blows and cleans the position sensor 62. After the discharge is completed, it enters the next cycle.

[0062] The utility model integrates the functions of automatic weighing, automatic unloading, automatic grinding, automatic material pulling, automatic oil injection, automatic position detection and the like, and has complete functions, high automation, high flexibility and good adaptability.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible automatic material distribution system for a friction press, characterized in that: Including automatic weighing mechanism and automatic material distribution mechanism; The automatic weighing mechanism comprises a weighing frame, on which a storage hopper, a lower hopper, a belt conveyor and a weighing hopper assembly are installed from top to bottom; The storage hopper and the lower hopper are both fixed on the weighing frame, the upper end of the lower hopper is connected to the lower end of the storage hopper, two symmetrically arranged stirring screws are arranged to rotate in the lower hopper, the stirring screws are connected to a screw driving device for driving the stirring screws to rotate, the two stirring screws are used to prevent material bridging, a level meter for sensing the material level is also arranged in the lower hopper, at least one vibration motor is fixed on the outer side of the lower hopper, and a discharge port is opened at the lower end of the lower hopper; The belt conveyor includes a conveyor frame fixed horizontally on a weighing frame, rollers are rotatably arranged at both ends of the conveyor frame, and conveyor belts are arranged on the outer sleeves of the two rollers, one of the rollers is drivingly connected to a conveyor belt driving device for driving the rotation thereof, and a material control gate located above the conveyor belt is arranged at the discharge end of the conveyor frame, and the material control gate is drivingly connected to a material control gate driving device for driving the material control gate to control the material discharge amount of the conveyor belt; The weighing bucket assembly includes two slide rails symmetrically fixed on the weighing frame, the direction of the slide rails is the same as the feeding direction of the conveyor belt, a sliding frame is slidably arranged on the slide rails, the sliding frame is transmission-connected with a moving driving device for driving the sliding frame to move along the slide rails, a plurality of weighing sensors are fixed on the upper end surface of the sliding frame, a weighing bucket is installed on the weighing sensor, the weighing bucket is located below the discharge end of the conveyor belt, an openable and closable discharge gate is arranged at the bottom of the weighing bucket, and the discharge gate is transmission-connected with a discharge gate driving device for driving the discharge gate to open and close; The automatic material distribution mechanism includes a manipulator, and a material distribution frame is installed at the end of the manipulator; the material distribution frame is equipped with a material distribution hopper, a floating grinding mechanism, a four-corner material extraction mechanism, an oil injection mechanism and a mold position detection device. The manipulator is used to drive the material distribution hopper to the bottom of the weighing hopper to receive the material and then move it to the mold position; The material distributing hopper comprises a hopper body, which is fixed on the material distributing frame, a material distributing opening is provided at the lower end of the hopper body, an openable and closable material distributing gate is provided on the material distributing gate, and the material distributing gate is transmission-connected to a material distributing gate driving device for controlling the opening and closing of the material distributing gate; The floating grinding mechanism comprises an upper mounting plate and a lower mounting plate, the two ends of the upper mounting plate and the lower mounting plate are connected by a spring floating device, an upper motor facing upward is mounted on the upper mounting plate, an upper grinding sheet is mounted on the rotating shaft of the upper motor, a lower motor facing downward is mounted on the lower mounting plate, a lower grinding sheet is mounted on the rotating shaft of the lower motor, the upper motor and the lower motor are both located between the upper mounting plate and the lower mounting plate, and the upper grinding sheet and the lower grinding sheet are used for grinding the upper die and the lower die respectively; The four-corner material extraction mechanism comprises a material extraction tip for extracting the material in the lower die, and the material extraction tip is transmission-connected to a material extraction tip driving device for driving the material extraction tip to extract the material; The oil spraying mechanism comprises a nozzle fixing frame, the nozzle fixing frame is fixed on the material distribution frame, the nozzle fixing frame has an upper nozzle and a lower nozzle facing upward and downward, the upper nozzle is connected to an upper nozzle valve, the lower nozzle is connected to a lower nozzle valve, and the upper nozzle and the lower nozzle are used to spray oil on the upper mold and the lower mold; The mold position detection device comprises a detection fixing frame, which is fixed on the cloth frame. The detection fixing frame is equipped with a position sensor for sensing the mold position, and also comprises an air blowing head for blowing and cleaning the position sensor.

2. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The screw driving device is a reduction motor, and a first sprocket is fixed on the output shaft of the reduction motor. A second sprocket matching the first sprocket is fixed at one end of the stirring screw, and the first sprocket and the second sprocket are connected by a chain transmission; the conveyor belt driving device is a reduction motor 1; the mobile driving device includes a servo motor and a rack, and the servo motor is fixedly connected to one of the slide rails through a mounting frame, and a gear is fixedly connected to the output shaft of the servo motor, and the rack is fixedly connected to the sliding frame, and the gear is meshed with the rack.

3. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The material control gate is a U-shaped plate, which is fixedly connected to a rotating shaft leading to both ends, and the two ends of the rotating shaft are rotatably connected to the conveying frame; the material control gate driving device includes a cylinder, the cylinder body end of the cylinder is hinged on the connecting plate, the connecting plate is fixedly connected to the conveying frame, the push rod end of the cylinder is hinged to one end of the push rod, and the other end of the push rod is fixedly connected to one end of the rotating shaft.

4. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: A plurality of unpowered rollers are arranged in the conveyor belt, which are parallel to the rollers. Both ends of the unpowered rollers are rotatably connected to the conveyor frame. A dust guard is fixed on the discharge end of the conveyor frame, and the dust guard is spaced apart from the conveyor belt.

5. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The storage hopper is a cylindrical hopper body, and the lower hopper is a hopper that is larger at the top and smaller at the bottom; a plurality of sliding blocks that cooperate with the slide rails are fixed on the sliding frame.

6. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The material distributing gate includes two revolving door bodies rotatably connected to the lower part of the bucket body; the material distributing gate driving device includes a cylinder 1, the push rod end of the cylinder 1 is fixedly connected to the middle part of a connecting rod, the two ends of the connecting rod are respectively hinged with a push rod, and the other end of the push rod is respectively hinged to a revolving door body, and the cylinder 1 drives the revolving door body to rotate and open and close through the connecting rod and the push rod.

7. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The spring floating device includes two groups of upper floating heads and lower floating heads, which are connected by an intermediate mounting plate; the upper floating head includes a spring, an upper floating seat and a lower floating seat, the upper floating seat includes an upper plate and a guide sleeve fixed downward on the upper plate, the lower floating seat includes a lower plate and a guide slide column fixed upward on the lower plate, the guide slide column slides in the guide sleeve, the spring is sleeved outside the guide sleeve, the two ends of the spring are in contact with the upper plate and the lower plate respectively, the upper plate and the lower plate are fixed on the upper mounting plate and the intermediate mounting plate respectively; the structure of the lower floating head is the same as that of the upper floating head.

8. The flexible automatic material distribution system for a friction press as claimed in claim 1, characterized in that: The upper end of the two first material pushing rods is connected to the side plate of the U-shaped lower frame, and the upper end of the second material pushing rod is hinged on the side plate of the U-shaped lower frame. The lower end of the second material pushing rod is connected to the sliding rod, and the sliding rod is slidably arranged in the second sliding groove, and the material pulling tip is detachably connected to the bottom middle of the U-shaped lower frame.

9. The flexible automatic material distribution system for a friction press as claimed in claim 8, characterized in that: The push rod end of the second cylinder is connected to the first connecting rod through a fisheye rod end joint bearing, and the cylinder body of the second cylinder is fixedly connected to the U-shaped upper frame through an angle iron second.

10. The flexible automatic material distribution system for a friction press as claimed in claim 9, characterized in that: The U-shaped upper frame and the U-shaped lower frame are both U-shaped plates, and the U-shaped plate includes an end plate and two side plates vertically fixed on opposite sides of the end plate; the upper motor and the lower motor are both pneumatic motors; the pulling tip includes a head body and a tip fixed at the bottom of the head body, and the tip is a triangular head, a regular quadrilateral cone head or a regular hexagonal cone head; the four-corner pulling mechanism, the oil injection mechanism and the mold position detection device are covered with a protective cover, and the protective cover is provided with an avoidance opening for avoiding the upper nozzle, the lower nozzle, the position sensor and the pulling tip.

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