Automatic feeding device for metal sheet stamping

Abstract

The present invention provides an automatic feeding device for metal sheet stamping, which belongs to the technical field of sheet stamping feeding. The invention includes a conveyor, a placement bin, a feeding mechanism, a transfer mechanism and a metal plate, and also includes: an adaptive feeding component, a guide stamping component, and a trigger unloading component; through the coordinated work of the adaptive feeding component, the guide stamping component and the trigger unloading component, the full automation of the metal sheet from feeding, positioning, stamping to unloading is realized; through the precise cooperation of the guide plate, the limit block and the die base, the accurate positioning of the metal sheet during the stamping process is ensured, and the precision of the stamping position is ensured; the lifting and lowering action of the die is closely linked with the steps of positioning and limiting the metal plate, releasing the limit, and pushing the metal plate out of the processing area, so as to realize the full automation from stamping to unloading, and at the same time, the elastic limit on both sides provided by the induction plate, the floating rod and other components effectively avoids the problem of metal plate sticking to the die during and after stamping.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal stamping feeding, and in particular to an automatic feeding device for metal sheet metal stamping. Background Art

[0002] With the continuous deepening of global industrial automation, the sheet metal stamping industry has higher and higher requirements for efficiency and automation. Stamping is an important part of sheet metal processing and is widely used in the automotive, home appliances, electronics, construction and other industries. In the traditional stamping parts manufacturing process, feeding and discharging are usually done manually, which is not only inefficient, but also with the annual increase in labor costs, the production costs of enterprises are also increasing. Manual feeding is not only inefficient, but also has safety hazards during operation. The high-speed movement of stamping machinery may cause safety accidents to operators. Therefore, improving the level of production automation is an effective way to reduce safety risks.

[0003] In recent years, some companies with a high degree of automation have used fully automatic double-destackers to load materials and robots to grab and separate materials. The loading equipment has a complex structure, high cost investment, large floor space, and cannot be implemented on the existing basis. It is difficult for general small and medium-sized enterprises to accept it. In addition, in some existing technologies, the loading and unloading of metal plates requires the cooperation of multiple robots, which has high cost of use; in addition, when stamping metal plates, some existing technologies easily cause the die to stick to the metal plate, which will make unloading difficult, and even require manual intervention to remove the metal plate from the die. In some continuous production situations, the adhesion phenomenon may cause the production line to stop, further affecting the production progress.

[0004] How to invent an automatic feeding device for metal sheet stamping to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides an automatic feeding device for metal sheet stamping, aiming to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that:

[0007] The present invention provides an automatic feeding device for stamping metal plates, comprising a conveyor, a placement bin, a material delivery mechanism, a transfer mechanism and a metal plate, wherein the placement bin is fixedly arranged on one side of the conveyor, the material delivery mechanism is arranged inside the placement bin, the transfer mechanism is arranged above the conveyor and the placement bin, and the transfer mechanism is used to transfer the metal plate from the placement bin to the conveyor, and further comprises:

[0008] Adaptive material delivery component: The adaptive material delivery component is arranged on the material delivery mechanism and the placement bin, and the adaptive material delivery component is used to convey a single piece of metal plates of different specifications;

[0009] Guide stamping assembly: The guide stamping assembly is arranged on the conveyor, and is used for guiding, conveying, positioning and stamping the metal plate on the conveyor;

[0010] Trigger blanking component: The trigger blanking component is arranged inside the guide stamping component. The trigger blanking component controls the automatic blanking of the stamped metal plate according to the working state of the guide stamping component, and assists in demolding the stamped metal plate.

[0011] Preferably, the adaptive material delivery assembly includes a positioning plate, a connecting plate and multiple sets of sliding guide rails. The connecting plate is fixedly mounted on the upper end of the slide of the material delivery mechanism. The connecting plate is provided with grooves matching the multiple sets of sliding guide rails. Both ends of the inner side walls of the placement bin are provided with sliding rails matching the sliding guide rails. The positioning plate is located at the top of the placement bin. A positioning bolt is fixedly provided on the top of the sliding guide rail. The end of the positioning bolt extends to the top of the positioning plate and is slidably connected to the inner groove of the positioning plate. The positioning bolt is fixed to the positioning plate by a nut.

[0012] Preferably, the adaptive material delivery assembly also includes a fixed sleeve and a discharge chuck, the discharge chuck is fixedly installed and connected to the sliding guide rails on both sides, the discharge chuck is arranged in an L shape, and a plurality of the metal plates are stacked and placed between the two discharge chucks, the fixed sleeve is fixedly arranged on the connecting plate, the number of the fixed sleeves is two and they are close to the metal plate, the internal limiting sliding connection of the fixed sleeve is connected with a telescopic rod, the upper end of the telescopic rod is fixedly installed with a push plate, the rear side wall of the push plate facing the metal plate is fixedly connected with an arc block, and a first spring is arranged between the fixed sleeve and the push plate, and the first spring is slidably sleeved on the telescopic rod.

[0013] Preferably, the bottom wall of the metal plate of the lowest layer is in contact with the top of the sliding guide rail, the front end side wall of the discharge chuck is provided with an outlet matching the thickness of the metal plate, the top of the arc block is tangent to the top of the push plate, and the distance between the top of the push plate and the top of the sliding guide rail when the telescopic rod is in an initial state is less than the thickness of the metal plate.

[0014] Preferably, the guide stamping assembly includes a hydraulic cylinder, a mounting frame and a die base, the mounting frame is fixedly mounted on the conveyor and close to the output end of the conveyor, the hydraulic cylinder is fixedly mounted on the mounting frame, the interior of the hydraulic cylinder is slidably connected with a piston rod, the piston rod passes through the side wall of the mounting frame and the end thereof is fixedly connected with a die, the die base is matched with the die, the die base is fixedly mounted on the conveyor and is located directly below the hydraulic cylinder, and the bottom of the die base is in contact with the surface of the conveyor belt of the conveyor.

[0015] Preferably, the mold base is arranged in a hollow trapezoidal shape, and two mounting seats are symmetrically fixedly installed on the inner top of the mold base. A guide plate is fixedly connected to the side wall of the mounting seat facing the hydraulic cylinder, and the end of the guide plate close to the transfer mechanism is arranged outwardly. The distance between the two guide plates matches the width of the metal plate. Two transmission rollers are arranged at both ends of the mold base, and the mold base is provided with a mounting groove matching the transmission roller, and both ends of the mounting groove pass through the side wall of the mold base, and the bottom end of the transmission roller contacts the surface of the conveyor belt of the conveyor, and the top of the transmission roller is higher than the inclined surfaces at both ends of the mold base.

[0016] Preferably, the guide stamping assembly also includes a sensing plate, a micro motor and a connecting rod, the connecting rod is rotatably arranged between the sensing plate and the mounting seat, the lower side wall of the sensing plate is fixedly connected to the upper side wall of the guide plate, an infrared sensor is arranged on the outer side of the sensing plate, the micro motor is fixedly arranged above the sensing plate, the output end of the micro motor passes through the sensing plate and extends to the bottom of the sensing plate, the output end of the micro motor is fixedly connected to the connecting rod, a positioning column for limiting the connecting rod is fixedly connected to the right end inclined surface of the mold base, the connecting rod and the mold base are elastically connected by a reset spring, the connecting rod is L-shaped, the end of the connecting rod away from the micro motor is fixedly connected to the limiting block, the limiting block is located in the inner area between the two guide plates when the connecting rod and the positioning column are abutted, the limiting block is composed of a baffle rod and a baffle plate, the bottom end of the baffle rod is lower than the upper processing plane of the mold base, the lower end surface of the baffle plate is higher than the upper surface of the metal plate located on the mold base, and the width of the mounting seat is greater than the length of the short arm of the connecting rod.

[0017] Preferably, the trigger blanking assembly comprises a front guide block, a rear guide block, a lever and two limit seats, the limit seat is close to the transfer mechanism and is fixedly connected to the inner side wall of the mounting frame, the limit rod is fixedly connected between the two limit seats, the rear guide block and the front guide block are respectively fixedly connected to the left and right side walls of the die, and sliding grooves matching the two sensing plates are arranged on both sides of the front guide block, the rear guide block is internally rotatably connected to a transmission plate, the upper end of the lever is fixedly connected to a connecting sleeve, the inner cavity side wall of the connecting sleeve is fixedly connected to a connecting spring, the end of the connecting spring is fixedly connected to the bottom wall of the transmission plate, the transmission plate and the connecting sleeve are elastically connected by a connecting spring, the lever is rotatably connected to the limit rod, the lever is internally rotatably connected to a floating rod toward the die base, and an active groove for the floating rod to move is arranged on the side wall of the lever facing the die base, and the active groove and the floating rod are elastically connected by two second springs.

[0018] Preferably, the trigger blanking assembly also includes a U-shaped plate and a pressure rod arranged in the sensing plate, the lower end of the pressure rod passes through the bottom wall of the sensing plate and extends to the outside of the sensing plate, the end of the pressure rod located outside the sensing plate is fixedly connected to the pressure plate, and the end of the pressure rod located inside the sensing plate is fixedly connected to a magnetic block, the magnetic block and the top wall of the inner cavity of the sensing plate are elastically connected by a third spring, a limiting groove is arranged inside the U-shaped plate, a timing switch is fixedly installed on the top of the limiting groove, a trigger magnetic plate is slidably arranged at the bottom of the limiting groove, the cross-section of the trigger magnetic plate is H-shaped, the side wall of the magnetic block is abutted against the side wall of the inner cavity of the sensing plate, one end of the magnetic block is located inside the U-shaped plate and abuts against the inner top wall of the U-shaped plate, and the opposing surfaces of the magnetic block and the trigger magnetic plate are magnetically arranged with different polarities.

[0019] Preferably, the magnetic force between the opposite surfaces of the magnetic block and the trigger magnetic plate is greater than the sum of the gravity of the trigger magnetic plate and the friction between the trigger magnetic plate and the limit groove, there is a gap between the bottom wall of the pressure plate and the upper surface of the metal plate when the die is in contact with the surface of the metal plate, the timing switch is electrically connected to the micro motor, and a microprocessor and a timer are integrated inside the timing switch.

[0020] The beneficial effects of the present invention are:

[0021] Through the coordinated work of the adaptive material delivery component, transfer mechanism, guide stamping component and trigger unloading component, the whole process of metal sheet loading, positioning, stamping to unloading is realized, and the use cost is greatly reduced; through the precise coordination of the guide plate, limit block and die base, the accurate positioning of the metal sheet during the stamping process is ensured, and the precision of the stamping position is guaranteed; the lifting and lowering action of the die is closely linked with the steps of positioning and limiting the metal plate, releasing the limit, and pushing the metal plate out of the processing area, so as to realize the whole process of automation from stamping to unloading. At the same time, the elastic limit on both sides provided by the induction plate, floating rod and other components effectively avoids the problem of metal plate sticking to the die during and after stamping; the design of the sliding guide rail and the unloading chuck enables the device to easily adapt to metal sheets of different lengths without replacing or adjusting other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of an automatic feeding device for stamping metal plates provided by an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of a transfer mechanism of a metal sheet stamping automatic feeding device in operation provided by an embodiment of the present invention;

[0025] Figure 3 The invention provides a metal sheet stamping automatic feeding device. Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 It is a schematic structural diagram of an adaptive material delivery component of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a guide stamping assembly of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention;

[0028] Figure 6 It is a schematic cross-sectional structure diagram of a guide stamping assembly of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention;

[0029] Figure 7 It is a schematic structural diagram of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention, in which a guide stamping component limits the position of a metal sheet;

[0030] Figure 8 It is a schematic structural diagram of an initial state of a guide stamping assembly of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of a stamping state of a guide stamping component of an automatic feeding device for stamping a metal sheet provided by an embodiment of the present invention;

[0032] Fig.10 It is a schematic diagram of the cross-sectional structure of a guide stamping assembly of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention during stamping;

[0033] Fig.11 It is a structural schematic diagram of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention when a blanking component is triggered to work;

[0034] Fig.12 This is a schematic diagram of the internal structure of a sensing plate of an automatic feeding device for metal sheet stamping provided by an embodiment of the present invention;

[0035] Fig.13 The invention provides a metal sheet stamping automatic feeding device. Fig.12 The enlarged structural diagram at B in the middle;

[0036] Fig.14It is a schematic diagram of the explosion structure of a sensing plate and a micro motor of a metal sheet stamping automatic feeding device provided by an embodiment of the present invention;

[0037] Fig.15 It is a schematic diagram of the cross-sectional structure of a lever and a rear guide block of an automatic feeding device for metal sheet stamping provided in an embodiment of the present invention.

[0038] In the figure: 1, conveyor; 2, storage bin; 3, material delivery mechanism; 4, transfer mechanism; 5, hydraulic cylinder; 6, lever; 7, die base; 8, induction plate; 9, micro motor; 10, metal plate; 201, positioning plate; 202, sliding guide rail; 203, positioning bolt; 204, discharge chuck; 301, connecting plate; 302, fixed sleeve; 303, telescopic rod; 304, push plate; 305, arc block; 306, first spring; 501, mounting frame; 502, piston rod; 503, punching die; 504, front guide block; 505, rear guide block; 506, Slide groove; 601, limit rod; 602, limit seat; 603, floating rod; 604, second spring; 605, movable groove; 606, connecting sleeve; 607, connecting spring; 608, transmission plate; 701, mounting seat; 702, guide plate; 703, transmission roller; 801, pressure rod; 802, pressure plate; 803, magnetic block; 804, third spring; 805, U-shaped plate; 806, limit groove; 807, timing switch; 808, trigger magnetic plate; 901, connecting rod; 902, limit block; 903, reset spring; 904, positioning column. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0040] Embodiment 1, refer to Figure 1-Figure 5 , an automatic feeding device for stamping metal plates, comprising a conveyor 1, a placing bin 2, a material delivery mechanism 3, a transfer mechanism 4 and a metal plate 10, wherein the placing bin 2 is fixedly arranged on one side of the conveyor 1, the material delivery mechanism 3 is arranged inside the placing bin 2, the transfer mechanism 4 is arranged above the conveyor 1 and the placing bin 2, and the transfer mechanism 4 is used to transfer the metal plate 10 from the placing bin 2 to the conveyor 1, and further comprising:

[0041] Adaptive material delivery component: The adaptive material delivery component is arranged on the material delivery mechanism 3 and the placement bin 2, and the adaptive material delivery component is used to convey a single metal plate 10 of different specifications;

[0042] Guide stamping assembly: The guide stamping assembly is arranged on the conveyor 1, and is used for guiding, conveying, positioning and stamping the metal plate 10 on the conveyor 1;

[0043] Trigger blanking component: The trigger blanking component is arranged inside the guide stamping component, and the trigger blanking component controls the automatic blanking of the stamped metal plate 10 according to the working state of the guide stamping component, and assists the stamped metal plate 10 to be demoulded;

[0044] Furthermore, the adaptive material delivery component includes a positioning plate 201, a connecting plate 301 and a plurality of sliding guide rails 202. The connecting plate 301 is fixedly mounted on the upper end of the slide of the material delivery mechanism 3. The connecting plate 301 is provided with grooves matching the plurality of sliding guide rails 202. Both ends of the inner side wall of the placement bin 2 are provided with slide rails matching the sliding guide rails 202. The positioning plate 201 is located at the top of the placement bin 2. A positioning bolt 203 is fixedly provided on the top of the sliding guide rail 202. The end of the positioning bolt 203 extends to the top of the positioning plate 201 and is slidably connected to the inner groove of the positioning plate 201. The positioning bolt 203 is fixed to the positioning plate 201 by a nut.

[0045] The adaptive material delivery assembly also includes a fixed sleeve 302 and a discharging chuck 204. The discharging chuck 204 is fixedly installed and connected to the sliding guide rails 202 on both sides. The discharging chuck 204 is L-shaped. A plurality of metal plates 10 are stacked and placed between the two discharging chucks 204. By adjusting the sliding guide rails 202 on both sides, the distance between the two discharging chucks 204 can be adjusted, so as to adapt to metal plates 10 of different lengths. The fixed sleeve 302 is fixedly arranged on the connecting plate 301. The number of the fixed sleeves 302 is two and they are close to the metal plate 10. The internal limit sliding connection of the fixed sleeve 302 is connected with a telescopic rod 303. The upper end of the telescopic rod 303 is fixedly installed with a push plate 304. The rear side wall of the push plate 304 facing the metal plate 10 is fixedly connected with an arc block 305. A first spring 306 is arranged between the fixed sleeve 302 and the push plate 304. The first spring 306 is slidably sleeved on the telescopic rod 303.

[0046] It should be noted that: the bottom wall of the metal plate 10 of the lowest layer is in contact with the top of the sliding guide rail 202, and the multiple sliding guide rails 202 can effectively support the metal plate 10. The front end side wall of the discharge chuck 204 is provided with an outlet that matches the thickness of the metal plate 10, and only a single metal plate 10 is pushed out at a time for stamping. The top of the arc block 305 is tangent to the top of the push plate 304. When the telescopic rod 303 is in the initial state, the distance between the top of the push plate 304 and the top of the sliding guide rail 202 is less than the thickness of the metal plate 10, ensuring In order to ensure that the bottom metal plate 10 can be pushed out normally without contacting the metal plate 10 on the upper layer, the setting of the arc block 305 not only helps the plate to be quickly removed, but also when resetting, the arc block 305 will be squeezed by the metal plate 10 first. At this time, under the action of the plate pressure, the arc block 305 will drive the push plate 304 to move down to the bottom of the bottom metal plate 10 synchronously. When leaving the metal plate 10, under the action of the first spring 306, the push plate 304 will be reset without affecting the delivery of the next plate;

[0047] In this embodiment, the material delivery mechanism 3 is started. Under the action of the slide, the connecting plate 301 starts to move. Due to the action of the arc block 305 connected to the rear side wall of the push plate 304 and the first spring 306 sleeved on the telescopic rod 303, the push plate 304 will first contact the metal plate 10 at the bottom layer when moving forward and apply a forward thrust. As the push plate 304 continues to move, the metal plate 10 starts to move forward under the action of the thrust until its front end slides out of the outlet of the discharge chuck 204, and the arc block 305 passes through it. The specific shape and position enable the plate (above the bottom layer) to be separated from the top more smoothly, and finally fall on the conveyor belt on the conveyor 1 under the action of the transfer mechanism 4. When resetting, the arc block 305 will be squeezed by the metal plate 10 first. At this time, under the action of the plate pressure, the arc block 305 will drive the push plate 304 to move down to the bottom of the bottom metal plate 10 synchronously. When separating from the metal plate 10, under the action of the first spring 306, the push plate 304 can automatically reset and prepare for the next push operation;

[0048] In order to process metal plates 10 of different lengths, a sliding guide rail 202 is used to adjust the distance between the two discharge chucks 204. By adjusting the sliding guide rail 202, it can be ensured that the distance between the two discharge chucks 204 matches the length of the metal plate 10 currently to be processed. There is no need to replace or adjust other parts. Only the nut on the positioning bolt 203 can be screwed to adapt to metal plates 10 of different lengths.

[0049] In summary, the adaptive material delivery assembly not only realizes the rapid removal and resetting of the metal plate 10, but also realizes the adaptation of plates of different lengths through the adjustment of the sliding guide rail 202 and the material discharging chuck 204, and can quickly and automatically sort the plates, greatly improving the efficiency and versatility of the device;

[0050] Example 2, refer to Figure 5-Figure 10 The guide stamping assembly includes a hydraulic cylinder 5, a mounting frame 501 and a die base 7. The mounting frame 501 is fixedly mounted on the conveyor 1 and close to the output end of the conveyor 1. The hydraulic cylinder 5 is fixedly mounted on the mounting frame 501. The interior of the hydraulic cylinder 5 is slidably connected with a piston rod 502. The piston rod 502 passes through the side wall of the mounting frame 501 and the end thereof is fixedly connected with a punch 503. The die base 7 is matched with the punch 503. The die base 7 is fixedly mounted on the conveyor 1 and is located directly below the hydraulic cylinder 5. The bottom of the die base 7 fits the surface of the conveyor belt of the conveyor 1. The conveyor 1 transports the metal plate 10 thereon to the guide stamping assembly through the conveyor belt.

[0051] The die base 7 is a hollow trapezoidal body, which is convenient for transferring the metal plate 10 to the processing area of ​​the die base 7. Two mounting seats 701 are fixedly and symmetrically installed on the inner top of the die base 7. A guide plate 702 is fixedly connected to the side wall of the mounting seat 701 facing the hydraulic cylinder 5. The end of the guide plate 702 close to the transfer mechanism 4 is an outward expansion type. The distance between the two guide plates 702 matches the width of the metal plate 10. The metal plate 10 on the conveyor 1 can be automatically guided by the guide plate 702. Two transmission rollers 703 are arranged at both ends of the die base 7. The die base 7 is provided with mounting grooves matching the transmission rollers 703. Both ends of the mounting grooves penetrate the side walls of the die base 7. The bottom ends of the transmission rollers 703 are in contact with the conveyor belt surface of the conveyor 1. The tops of the transmission rollers 703 are higher than the inclined surfaces at both ends of the die base 7. When the conveyor 1 is running, the transmission rollers 703 will also rotate under the drive of the conveyor belt. Under the joint action of the transmission rollers 703 and the conveyor belt, the metal plate 10 can be pushed onto the die base 7 (refer to Figure 6 );

[0052] Furthermore, the guide stamping assembly also includes a sensing plate 8, a micro motor 9 and a connecting rod 901. The connecting rod 901 is rotatably arranged between the sensing plate 8 and the mounting seat 701. The lower side wall of the sensing plate 8 is fixedly connected to the upper side wall of the guide plate 702. An infrared sensor is arranged on the outer side of the sensing plate 8 to reduce the risk of casualties due to misoperation of personnel. The micro motor 9 is fixedly arranged above the sensing plate 8. The output end of the micro motor 9 runs through the sensing plate 8 and extends to the bottom of the sensing plate 8. The output end of the micro motor 9 is fixedly connected to the connecting rod 901. A positioning column 904 for limiting the connecting rod 901 is fixedly connected to the right end inclined surface of the mold base 7. The connecting rod 901 is elastically connected to the mold base 7 through a reset spring 903. Under the action of the reset spring 903, the connecting rod 901 will be pushed and abut against the positioning column 904.

[0053] It should be noted that: the connecting rod 901 is set in an L-shaped manner, and the end of the connecting rod 901 away from the micro motor 9 is fixedly connected to the limiting block 902. When the connecting rod 901 abuts against the positioning column 904, the limiting block 902 is located in the inner area between the two guide plates 702. The limiting block 902 is composed of a baffle rod and a baffle plate. The bottom end of the baffle rod is lower than the upper processing plane of the die base 7. The baffle rod can effectively position the metal plate 10 to ensure the accuracy of the stamping position. The lower end surface of the baffle plate is higher than the upper surface of the metal plate 10 located on the die base 7. The baffle plate and the induction plate 8 can limit the front end of the metal plate 10 after the stamping is completed, thereby avoiding the metal plate 10 sticking to the die. The width of the mounting seat 701 is greater than the length of the short arm of the connecting rod 901, ensuring that the connecting rod 901 can retract normally, thereby ensuring that the stamped metal plate 10 can be normally separated from the die base 7.

[0054] In this embodiment, the metal plate 10 falls on the conveyor belt on the conveyor 1 under the action of the transfer mechanism 4, and the conveyor 1 is started. The metal plate 10 can be smoothly conveyed to the vicinity of the guide stamping assembly through the conveyor belt. The metal plate 10 on the conveyor 1 can be automatically guided by the guide plate 702. Under the joint action of the drive roller 703 and the conveyor belt, the metal plate 10 is pushed to the top of the die base 7. Under the guidance and obstruction of the guide plate 702 and the limit block 902 (blocking rod and baffle), the metal plate 10 accurately enters the processing area of ​​the die base 7, and the bottom end of the baffle is lower than The upper processing plane of the die base 7 ensures the effective positioning of the metal plate 10 and the accuracy of the stamping position. The hydraulic cylinder 5 starts to work, and the piston rod 502 drives the die 503 to move downward. The die 503 cooperates with the die base 7 to perform a stamping operation on the metal plate 10. After the stamping is completed, the hydraulic cylinder 5 stops working, and the die 503 returns to the initial position. The baffle plate (located above the limit block 902) on the connecting rod 901 and the induction plate 8 jointly limit the front end of the metal plate 10, thereby avoiding the metal plate 10 from sticking to the die after the stamping is completed.

[0055] The micro motor 9 is started to rotate the connecting rod 901, and the limit block 902 leaves the metal plate 10 and no longer limits it. The worker or the automated machine can safely take away the stamped metal plate 10, and the conveyor 1 continues to convey the next metal plate 10 to the guide stamping assembly to prepare for the next round of stamping operations. Through the coordinated work of these components, the automatic feeding and stamping process of the metal plate 10 can be completed efficiently and accurately, which not only improves production efficiency, but also reduces manual operations through automation, reducing the risk of operating errors and accidents;

[0056] Example 3, refer to Figure 9-Figure 15The trigger blanking assembly includes a front guide block 504, a rear guide block 505, a lever 6 and two limit seats 602. The limit seat 602 is close to the transfer mechanism 4 and is fixedly connected to the inner wall of the mounting frame 501. The limit rod 601 is fixedly connected between the two limit seats 602. The rear guide block 505 and the front guide block 504 are respectively fixedly connected to the left and right side walls of the die 503. Both sides of the front guide block 504 are provided with slide grooves 506 matching the two induction plates 8, which can increase the stability of the die 503 during stamping. The internal rotation of the rear guide block 505 is connected to a transmission plate 608. The upper end of the lever 6 is fixedly connected to a connecting sleeve 60 6. A connecting spring 607 is fixedly connected to the inner cavity side wall of the connecting sleeve 606. The end of the connecting spring 607 is fixedly connected to the bottom wall of the transmission plate 608. The transmission plate 608 and the connecting sleeve 606 are elastically connected by the connecting spring 607. The lever 6 is rotationally connected to the limiting rod 601. The inner part of the lever 6 facing the mold base 7 is rotationally connected to the floating rod 603. The side wall of the lever 6 facing the mold base 7 is provided with an active groove 605 for the floating rod 603 to move. The floating rod 603 can rotate around the active groove 605. The active groove 605 and the floating rod 603 are elastically connected by two second springs 604 to play a buffering role.

[0057] Furthermore, the trigger blanking assembly also includes a U-shaped plate 805 and a pressure rod 801 arranged in the induction plate 8. The lower end of the pressure rod 801 penetrates the bottom wall of the induction plate 8 and extends to the outside of the induction plate 8. The end of the pressure rod 801 located outside the induction plate 8 is fixedly connected to the pressure plate 802, and the end of the pressure rod 801 located inside the induction plate 8 is fixedly connected to the magnetic block 803. The magnetic block 803 is elastically connected to the top wall of the inner cavity of the induction plate 8 through the third spring 804. Under the pressure of the front guide block 504, the pressure plate 802 will drive the pressure rod 801 and the magnetic block 803 to move downward (the third spring 804 is in compression). State), a limit groove 806 is arranged inside the U-shaped plate 805, a timing switch 807 is fixedly installed on the top of the limit groove 806, a trigger magnetic plate 808 is slidably arranged at the bottom of the limit groove 806, and the cross section of the trigger magnetic plate 808 is arranged in an H shape, and the side wall of the magnetic block 803 is against the inner cavity side wall of the induction plate 8 to ensure the stability of its movement, one end of the magnetic block 803 is located inside the U-shaped plate 805 and against the inner top wall of the U-shaped plate 805, at this time, under the action of its own gravity, the trigger magnetic plate 808 is at the bottom of the limit groove 806, and the opposite surfaces of the magnetic block 803 and the trigger magnetic plate 808 are magnetically arranged with different polarities;

[0058] It should be noted that the magnetic force between the opposite surfaces of the magnetic block 803 and the trigger magnetic plate 808 is greater than the sum of the gravity of the trigger magnetic plate 808 and the friction between the trigger magnetic plate 808 and the limit groove 806. When the stamping is completed, due to the rise of the front guide block 504, the magnetic block 803 will be reset under the action of the third spring 804. At the same time as the magnetic block 803 rises, driven by the magnetic force, the magnetic block 803 will drive the trigger magnetic plate 808 to move up and squeeze the timing switch 807, and the die 503 will fit the surface of the metal plate 10. There is a gap between the bottom wall of the pressure plate 802 and the upper surface of the metal plate 10, which prevents the pressure plate 802 from squeezing the surface of the metal plate 10. The timing switch 807 is electrically connected to the micro motor 9. When the timing switch 807 is squeezed, the micro motor 9 starts to work, causing the connecting rod 901 to rotate, and the limit block 902 leaves the metal plate 10 and no longer limits it. The timing switch 807 is integrated with a microprocessor and a timer, which can start the micro motor 9 at a fixed time to control its rotation speed and start time. The rear guide block 505 is moved downwards to match the push of the rear lever 6. During the stamping process, the rear guide block 505 is lowered, and the transmission plate 608 in the rear guide block 505 rotates when subjected to pressure. The rotation of the transmission plate 608 drives the connecting sleeve 606 on the lever 6 to move through the connecting spring 607, thereby causing the lever 6 to rotate around the limit rod 601. When the stamping is completed, the piston rod 502 moves upwards (the distance the piston rod 502 rises is greater than the initial distance), and returns to the initial position before the next plate enters, avoiding affecting the lower plate. The metal plate 10 enters the die holder 7, and the rear guide block 505 rises. At this time, the lever 6 rotates in the opposite direction, and the metal plate 10 that has been stamped can be pushed to directly separate from the die holder 7. The metal plate 10 that has separated from the die holder 7 will automatically separate from the stamping area under the action of the right transmission roller 703 and the conveyor belt. At the same time, the rear end of the metal plate 10 can be pressed by the floating rod 603 on it, and the two ends of the metal plate 10 can be elastically limited in coordination with the induction plate 8 and the pressure plate 802, so as to avoid the metal plate 10 sticking to the die.

[0059] In this embodiment, the front guide block 504 and the rear guide block 505 in the trigger blanking assembly move with the rise and fall of the punch die 503, the lever 6 is supported and positioned by the limit rod 601, the connecting spring 607 in the connecting sleeve 606 ensures that there is a certain elastic connection between the lever 6 and the transmission plate 608, the magnetic block 803 inside the induction plate 8 is in the initial position under the action of the third spring 804, and keeps a certain distance from the trigger magnetic plate 808, and the trigger magnetic plate 808 is at the bottom of the limit groove 806 under the restriction of its own gravity and the limit groove 806;

[0060] Stamping process: When the punch 503 descends to perform stamping, the front guide block 504 contacts and squeezes the induction plate 8, causing the pressure plate 802, the pressure rod 801 and the magnetic block 803 to move downward together. The rear guide block 505 descends with the punch 503, and the internal transmission plate 608 rotates under the pressure, driving the lever 6 to rotate around the limit rod 601 through the connection spring 607;

[0061] Stamping is finished: the piston rod 502 moves upward (the rising distance is greater than the initial position), driving the die 503, the front guide block 504 and the rear guide block 505 to rise. After the front guide block 504 rises, the magnetic block 803 in the induction plate 8 is reset under the action of the third spring 804. When the magnetic block 803 rises, the magnetic plate 808 is triggered to move upward through magnetic attraction, which triggers the magnetic plate 808 to squeeze and start the timing switch 807. After the timing switch 807 is triggered, the micro motor 9 starts to work, driving the connecting rod 901 to rotate, so that the limit block 902 leaves the metal plate 10, and the limit on the metal plate 10 is released. At the same time, the rise of the rear guide block 505 causes the lever 6 to rotate in the opposite direction, and the lever 6 will push the stamped metal plate 10 to directly separate from the die base 7. In addition, the rear end of the metal plate 10 is pressed by the floating rod 603, and the front sensing plate 8 and the pressure plate 802 are cooperated to jointly push the metal plate 10 to separate from the die base 7. The metal plate 10 separated from the die base 7 is automatically separated from the stamping area under the action of the right transmission roller 703 and the conveyor belt. During the whole process, the setting of the floating rod 603 provides elastic limitation for the rear end of the metal plate 10, avoiding the situation that the metal plate 10 sticks to the die.

[0062] In this way, the trigger blanking assembly can effectively push the metal plate 10 out of the die base 7 after the stamping is completed, and through the cooperation of the floating rod 603, the sensing plate 8 and the pressure plate 802, ensure that the two ends of the metal plate 10 are elastically limited, thereby avoiding the metal plate 10 sticking to the die and improving the degree of automation and efficiency of stamping production.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for stamping metal plates, comprising a conveyor (1), a storage bin (2), a material delivery mechanism (3), a transfer mechanism (4) and a metal plate (10), wherein the storage bin (2) is fixedly arranged on one side of the conveyor (1), the material delivery mechanism (3) is arranged inside the storage bin (2), the transfer mechanism (4) is arranged above the conveyor (1) and the storage bin (2), and the transfer mechanism (4) is used to transfer the metal plate (10) from the storage bin (2) to the conveyor (1), characterized in that: Also includes: Adaptive material delivery component: the adaptive material delivery component is arranged on the material delivery mechanism (3) and the placement bin (2), and the adaptive material delivery component is used to transport a single metal plate (10) of different specifications; Guide punching assembly: the guide punching assembly is arranged on the conveyor (1), and is used to guide, convey, position and punch the metal plate (10) on the conveyor (1); The guide punching assembly comprises a hydraulic cylinder (5), a mounting frame (501) and a die base (7); the mounting frame (501) is fixedly mounted on the conveyor (1) and close to the output end of the conveyor (1); the hydraulic cylinder (5) is fixedly mounted on the mounting frame (501); a piston rod (502) is slidably connected to the interior of the hydraulic cylinder (5); the piston rod (502) passes through the side wall of the mounting frame (501) and the end of the piston rod is fixedly connected to the punching die (503); The die base (7) is in the shape of a hollow trapezoid, two mounting seats (701) are fixedly and symmetrically mounted on the inner top of the die base (7), a guide plate (702) is fixedly connected to the side wall of the mounting seat (701) facing the hydraulic cylinder (5), the end of the guide plate (702) close to the transfer mechanism (4) is outwardly expanded, two transmission rollers (703) are arranged at both ends of the die base (7), the bottom ends of the transmission rollers (703) are in contact with the conveyor belt surface of the conveyor (1), and the tops of the transmission rollers (703) are higher than the inclined surfaces at both ends of the die base (7); The guide stamping assembly further comprises a sensing plate (8), a micro motor (9) and a connecting rod (901), wherein the connecting rod (901) is rotatably arranged between the sensing plate (8) and the mounting seat (701), the lower side wall of the sensing plate (8) is fixedly connected to the upper side wall of the guide plate (702), an infrared sensor is arranged on the outer side of the sensing plate (8), the micro motor (9) is fixedly arranged above the sensing plate (8), and the output end of the micro motor (9) passes through the sensing plate (8) and extends to Below the induction plate (8), the output end of the micro motor (9) is fixedly connected to the connecting rod (901); a positioning column (904) for limiting the connecting rod (901) is fixedly connected to the right end inclined surface of the mold base (7); the connecting rod (901) and the mold base (7) are elastically connected via a return spring (903); the connecting rod (901) is quasi-L-shaped, and the end of the connecting rod (901) away from the micro motor (9) is fixedly connected to a limiting block (902); Trigger blanking component: the trigger blanking component is arranged inside the guide stamping component, and the trigger blanking component controls the automatic blanking of the stamped metal plate (10) according to the working state of the guide stamping component, and assists the stamped metal plate (10) in demoulding; The trigger unloading assembly comprises a front guide block (504), a rear guide block (505), a lever (6) and two limit seats (602). The limit seat (602) is close to the transfer mechanism (4) and fixedly connected to the inner wall of the mounting frame (501). The limit rod (601) is fixedly connected between the two limit seats (602). The rear guide block (505) and the front guide block (504) are respectively fixedly connected to the left and right side walls of the die (503). Both sides of the front guide block (504) are provided with slide grooves (506) matching the two induction plates (8). The rear guide block (505) is internally rotatably connected to a transmission plate (608). The upper end of the lever (6) is fixedly connected to a connecting sleeve ( 606), a connecting spring (607) is fixedly connected to the inner cavity side wall of the connecting sleeve (606), an end of the connecting spring (607) is fixedly connected to the bottom wall of the transmission plate (608), the transmission plate (608) and the connecting sleeve (606) are elastically connected via the connecting spring (607), the shifting rod (6) is rotationally connected to the limiting rod (601), the inner part of the shifting rod (6) facing the mold base (7) is rotationally connected to the floating rod (603), and a movable groove (605) for the floating rod (603) to move is provided on the side wall of the shifting rod (6) facing the mold base (7), and the movable groove (605) and the floating rod (603) are elastically connected via two second springs (604); The trigger blanking assembly further comprises a U-shaped plate (805) and a pressure rod (801) arranged inside the sensing plate (8), the lower end of the pressure rod (801) penetrates the bottom wall of the sensing plate (8) and extends to the outside of the sensing plate (8), the end of the pressure rod (801) located outside the sensing plate (8) is fixedly connected to the pressure plate (802), the end of the pressure rod (801) located inside the sensing plate (8) is fixedly connected to the magnetic block (803), the magnetic block (803) and the top wall of the inner cavity of the sensing plate (8) are elastically connected via a third spring (804), a limiting groove (806) is arranged inside the U-shaped plate (805), a timing switch (807) is fixedly installed on the top of the limiting groove (806), and a trigger magnetic plate (808) is slidably arranged at the bottom of the limiting groove (806); The magnetic force between the opposing surfaces of the magnetic block (803) and the trigger magnetic plate (808) is greater than the sum of the gravity of the trigger magnetic plate (808) and the friction between the trigger magnetic plate (808) and the limit groove (806), and the timing switch (807) is electrically connected to the micro motor (9).

2. The metal sheet stamping automatic feeding device according to claim 1, characterized in that: The adaptive material delivery assembly comprises a positioning plate (201), a connecting plate (301) and a plurality of sliding guide rails (202); the connecting plate (301) is fixedly mounted on the upper end of a slide of the material delivery mechanism (3); the connecting plate (301) is provided with grooves matching the plurality of sliding guide rails (202); both ends of the inner side wall of the placement bin (2) are provided with sliding rails matching the sliding guide rails (202); the positioning plate (201) is located at the top of the placement bin (2); a positioning bolt (203) is fixedly provided at the top of the sliding guide rail (202); the end of the positioning bolt (203) extends to the top of the positioning plate (201) and is slidably connected to the inner groove of the positioning plate (201); the positioning bolt (203) is fixed to the positioning plate (201) by a nut.

3. The metal sheet stamping automatic feeding device according to claim 2 is characterized in that: The adaptive material delivery assembly further comprises a fixed sleeve (302) and a discharge chuck (204), wherein the discharge chuck (204) is fixedly mounted and connected to the sliding guide rails (202) located on both sides, and the discharge chuck (204) is arranged in an L shape, and a plurality of the metal plates (10) are stacked and placed between the two discharge chucks (204), and the fixed sleeve (302) is fixedly arranged on the connecting plate (301), and the number of the fixed sleeves (302) is two and close to the metal plates. The metal plate (10) is provided with a telescopic rod (303) in a limited sliding connection inside the fixed sleeve (302), a push plate (304) is fixedly installed on the upper end of the telescopic rod (303), a curved block (305) is fixedly connected to the rear side wall of the push plate (304) facing the metal plate (10), a first spring (306) is provided between the fixed sleeve (302) and the push plate (304), and the first spring (306) is slidably sleeved on the telescopic rod (303).

4. The metal sheet stamping automatic feeding device according to claim 3 is characterized in that: The bottom wall of the metal plate (10) at the bottom layer is fitted with the top of the sliding guide rail (202), the front end side wall of the discharge chuck (204) is provided with an outlet that matches the thickness of the metal plate (10), the top of the arc block (305) is tangent to the top of the push plate (304), and the distance between the top of the push plate (304) and the top of the sliding guide rail (202) when the telescopic rod (303) is in an initial state is less than the thickness of the metal plate (10).

5. The metal sheet stamping automatic feeding device according to claim 1, characterized in that: The die base (7) is matched with the punch die (503), the die base (7) is fixedly arranged on the conveyor (1) and is located directly below the hydraulic cylinder (5), and the bottom of the die base (7) is in contact with the surface of the conveyor belt of the conveyor (1).

6. The metal sheet stamping automatic feeding device according to claim 1, characterized in that: The distance between the two guide plates (702) matches the width of the metal plate (10), and the die base (7) is provided with a mounting groove matching the drive roller (703), with both ends of the mounting groove penetrating the side wall of the die base (7).

7. The automatic feeding device for metal sheet stamping according to claim 1, characterized in that: When the connecting rod (901) and the positioning column (904) are in contact with each other, the limit block (902) is located in the inner area between the two guide plates (702), and the limit block (902) is composed of a stop rod and a stop plate, the bottom end of the stop rod is lower than the upper processing plane of the mold base (7), the lower end surface of the stop plate is higher than the upper surface of the metal plate (10) located on the mold base (7), and the width of the mounting seat (701) is greater than the length of the short arm of the connecting rod (901).

8. The metal sheet stamping automatic feeding device according to claim 1, characterized in that: The cross section of the trigger magnetic plate (808) is arranged in an H-shape, the side wall of the magnetic block (803) abuts against the inner cavity side wall of the induction plate (8), one end of the magnetic block (803) is located inside the U-shaped plate (805) and abuts against the inner top wall of the U-shaped plate (805), and the opposing surfaces of the magnetic block (803) and the trigger magnetic plate (808) are arranged with different polarity magnetism.

9. The metal sheet stamping automatic feeding device according to claim 1, characterized in that: When the punching die (503) and the surface of the metal plate (10) are in contact with each other, a gap exists between the bottom wall of the pressure plate (802) and the upper surface of the metal plate (10), and a microprocessor and a timer are integrated inside the timing switch (807).

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