Automatic lifting material box taking and placing device of unloading machine and working method of automatic lifting material box taking and placing device

Abstract

The invention discloses an automatic material box taking, placing and lifting device of an unloader and a working method of the automatic material box taking, placing and lifting device, and relates to the technical field of electronic element machining auxiliary devices. The automatic material box taking, placing and lifting device comprises a material box lifting device, a material box clamping and moving device, a first material box storage device, a second material box storage device, a material box displacement device and a material box mounting support; the material box lifting device and the second material box storage device are installed below the base plate in parallel with the base plate as the symmetry plane and symmetrically distributed along the transverse central axis of the base plate, the material box clamping and moving device is fixed to the upper surface of the base plate through a transverse moving module, and the clamping station of the material box clamping and moving device right corresponds to the vertical upper portion of the material box lifting device. The material box installation support comprises a fixing plate, a connecting column, an angle seat and a supporting column. The problems that in the prior art, operation is frequent, time and labor are consumed, and production efficiency is low due to the fact that a material box is manually taken and placed are solved. By means of the automatic material box taking and placing mechanism, replacement between a full material box and an empty material box is achieved within a certain production period.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic component processing auxiliary devices, and in particular to an automatic pick-up and drop-down lifting device for a discharger and a working method thereof. Background Art

[0002] In the end-capping process of electronic component manufacturing, the electronic components on the end-capping carrier need to be unloaded into a receiving box after the end-capping process is completed. In the past, the unloader was equipped with a box. After the box received a certain amount of material, it was manually removed and replaced with a new box before production could continue.

[0003] While existing technologies can achieve the unloading and collection of electronic components, they have significant drawbacks: the unloader's magazines must be manually placed and retrieved, and only one magazine can be replaced at a time. When the magazine is full, the machine must be shut down for processing. Frequent manual operations are not only time-consuming and labor-intensive, but also seriously impact production efficiency. Therefore, existing technologies are unable to meet the needs of efficient, automated production. Therefore, we propose an automatic magazine placement and lifting device for an unloader and its operating method. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic loading and unloading device for lifting and lowering material boxes of a discharger and its operating method, so as to solve the problems of frequent operation, time-consuming and labor-intensive operation, and low production efficiency caused by manual loading and unloading of material boxes mentioned in the above background art. Through the automatic loading and unloading mechanism, the replacement between full and empty material boxes can be achieved within a certain production cycle. This is done automatically by the system without stopping the machine for processing, replacing manual operation, effectively reducing labor costs, and improving production efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for automatically picking up and placing lifting boxes of a discharge machine, comprising a box lifting device, a box clamping and moving device, a first box storage device, a second box storage device, a box displacement device and a box mounting bracket, the box lifting device and the second box storage device are installed parallel to the bottom of the base plate with the base plate as the symmetry plane, and the two are symmetrically distributed along the transverse center axis of the base plate, the box clamping and moving device is fixed to the upper surface of the base plate through a transverse movement module, and its clamping station corresponds to the vertical upper part of the box lifting device, the box mounting bracket comprises a fixed plate, a connecting column, an angle seat and a support column, the upper end of the connecting column is fixed to the bottom surface of the base plate with bolts, the lower end of the fixing plate is vertically connected to the support column through the angle seat, and the box displacement device is fixed above the first box storage device and the second box storage device.

[0006] Preferably, the first material box storage device and the second material box storage device both include a storage cavity and a lifting tray assembly, the storage cavity is surrounded by a left panel, a right panel, a rear side panel and a front movable door to form a rectangular cavity, the bottom of the front movable door is provided with a fixedly connected front connecting plate, the lower ends of the left and right panels on both sides are bolted to the fixed plate through fixed angle panels, a first fixed block and a fiber optic sensor fixed block are vertically arranged on the left panel of the first material box storage device and the right panel of the second material box storage device, the fiber optic sensor on the outside of the fiber optic sensor fixed block cooperates with the door sensor on the front movable door through the door suction assembly to limit the position, the lifting plate above the lifting tray assembly is slidably connected to the guide bearing under the fixed plate through the guide shaft, and the lifting motor is fixed to the bottom surface of the fixed plate through the first connecting block and drives the lifting plate to rise and fall through the connecting head.

[0007] Preferably, the material box displacement device includes a front baffle and a rear baffle arranged in the front and rear, and a left push rod and a right push rod distributed on both sides. A displacement cylinder and a guide rail are installed on one side of the rear baffle. The left push rod and the right push rod are connected to the second connecting block by bolts on both sides through the guide blocks on both sides. The bottom of the second connecting block is connected to the slider of the guide rail. A first limit plate is provided on the inner side of the front baffle, and a second limit plate is provided on the inner side of the rear baffle.

[0008] Preferably, the material box lifting device includes a support plate and a lifting cylinder, the lifting cylinder drives the support plate to lift and receive the material box, and a suction cup is provided on the support plate for adsorbing the material box, and the support plate in the middle position of the material box lifting device is vertically fixed to the upper surface of the fixed plate through a support shaft, and the support plate is slidably connected to the support plate through two guide shafts, and the suction cup array is installed on the lower surface of the suction cup mounting plate and is bolted to the upper surface of the support plate, and a movable shaft is provided at the front and back of the bottom of the support plate, and the movable shaft is connected to the support plate through the movable bearing above, the limit block is fixed on the inner side of the bottom of the support plate, and the limiter is fixed between the two guide shafts through the mounting block, and the lifting cylinder is connected to the central axis of the bottom surface of the support plate through the mounting head.

[0009] Preferably, the four sides of the material box clamping moving device are provided with a first positioning plate, a second positioning plate, a third positioning plate and a fourth positioning plate, the upper end of the first positioning plate is provided with a first clamp, the upper end of the third positioning plate is provided with a second clamp, the first clamp and the second clamp are composed of a clamp cylinder, a clamp and a clamping buckle, the first clamp and the second clamp are respectively fixed to the first positioning plate and the third positioning plate through fixing parts, the driving clamp is driven by the outer clamp cylinder and drives the clamping buckle to form a clamping structure, the second positioning plate and the outer side of the fourth positioning plate are slidably connected to the fixed guide rail through a movable fixing seat, and the inner sides of the first positioning plate, the second positioning plate, the third positioning plate and the fourth positioning plate are each equipped with two sets of positioning blocks.

[0010] Preferably, four guide plates are symmetrically arranged on the inner side wall of the storage cavity, and gaps are reserved between the guide plates and the side of the material box to form lifting guide grooves. The protective sensor assembly on one side of the lifting tray assembly limits the travel range of the lifting plate through the cooperation of the sensor and the baffle.

[0011] Preferably, the sensing distance between the limiter and the limit block of the material box lifting device is adjusted by the mounting block, and the suction port of the suction cup is connected to the external negative pressure system through the air pipe.

[0012] Preferably, the material box clamping and moving device is fixed to the module sliding block of the transverse module through a connecting piece and bolts, and the optical fiber sensor PD-C310 is installed on the inner side of the first positioning plate to detect the position of the material box.

[0013] Preferably, the pneumatic components of the device are electrically connected to the PLC control system through a solenoid valve group, the speed of the servo motor of the transverse movement module is adjusted by a pulse signal, and a shock-absorbing pad is provided at the bottom of the support column of the material box mounting bracket.

[0014] The working method of the automatic pick-up and placement lifting box device of the unloader includes the following steps: Step 1: Before the system is operated, the magazines are stacked and stored in the storage chamber of the first magazine storage device. The lifting tray assembly at the bottom of the storage chamber drives the lifting plate through the lifting motor to adjust the stacking height of the magazines. The optical fiber sensor detects whether the magazines have reached the set position. Step 2: The system program controls the displacement cylinder of the magazine displacement device to drive the second connecting block, and translates the unloaded magazine in the first magazine storage device to the support plate of the magazine lifting device through the left push rod and the right push rod; Step 3: The lifting cylinder of the material box lifting device pushes the support plate to rise, and at the same time, the suction cup absorbs the bottom of the material box. When the limiter contacts the limit block, the material box is lifted to the clamping position of the material box clamping and moving device. The clamping cylinder drives the clamping plate to fix the material box through the clamping buckle, and the equipment starts unloading; Step 4: After the material box is full of material, the material box clamping and moving device moves to the top of the material box lifting device through the transverse movement module. The support plate of the material box lifting device rises to pick up the material box, the gripper cylinder releases the gripper, and the lifting cylinder drives the support plate down to the set position; Step 5: The magazine displacement device translates the full magazine from the magazine lifting device to the second magazine storage device, and the lifting tray assembly of the storage chamber descends to receive the stacked full magazines; Step 6: Repeat the above steps to realize the automatic storage and retrieval and cyclic replacement of the material box in the unloader through the coordinated action of the material box lifting device, the material box clamping and moving device and the material box displacement device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is equipped with an automatic material box picking and placing mechanism, which consists of a material box lifting device, a clamping and moving device, and a displacement device, replacing the traditional manual material box picking and placing operation mode. When the material box is full, the system can automatically complete the cycle of "full material box lowering for storage - empty material box loading and replacement" through program control, without the need for frequent manual intervention in operations such as handling and alignment. For example, the first material box storage device and the second material box storage device can store multiple material boxes at the same time. Through the cooperation of the lifting tray assembly and the displacement cylinder, the material boxes can be automatically transported, avoiding the physical exertion of repeated manual picking and placing, significantly reducing the labor cost of the production line, and are particularly suitable for long-term continuous production scenarios.

[0016] 2. This invention utilizes a non-stop cartridge replacement mechanism. Unlike conventional unloaders, which require shutdown for replacement when the cartridge is full, resulting in production interruptions, this non-stop cartridge replacement mechanism automatically completes the cartridge cycle during the unloading process. After the cartridge gripper and mobile device transfers the full cartridge to the lifting device, the cartridge displacement device simultaneously transfers the new cartridge from the storage device to the designated workstation. The entire replacement process is controlled by the system program, eliminating the need to interrupt the unloading process. For example, fiber optic sensors and limiters precisely locate the cartridge position, ensuring rapid and stable replacement. This reduces downtime compared to traditional manual replacement, effectively increasing production capacity per unit time and meeting the demands of high-speed production.

[0017] 3. The present invention realizes automatic storage, retrieval and replacement of material boxes in the discharger through the coordinated operation of the material box lifting device, the clamping mobile device, the first and second material box storage devices and the displacement device. When the system is running, the unloaded material box is transferred from the first material box storage device to the material box lifting device via the displacement device. After being lifted, the clamping mobile device takes the material and unloads it. After it is full, it is transferred to the lifting device by the clamping mobile device and stored in the second material box storage device via the displacement device. The entire process is controlled by the system program and does not require manual operation. The replacement of full and empty material boxes can be automatically completed within the production cycle, effectively improving the level of production automation and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is an exploded view of the overall structure of the present invention; Figure 3 It is a three-dimensional diagram of the first material box storage device and the second material box storage device of the present invention; Figure 4 A three-dimensional diagram of the storage cavity of the material box storage device of the present invention; Figure 5 This is an exploded view of the storage cavity of the material box storage device of the present invention; Figure 6 A three-dimensional diagram of a lifting tray assembly of a material box storage device of the present invention; Figure 7This is an exploded view of the lifting tray assembly of the material box storage device of the present invention; Figure 8 A perspective view of the magazine displacement device of the present invention; Figure 9 This is an exploded view of the cartridge displacement device of the present invention; Figure 10 This is a three-dimensional diagram of the mounting bracket of the magazine of the present invention; Figure 11 This is a three-dimensional diagram of the material box lifting device of the present invention; Figure 12 This is an exploded view of the material box lifting device of the present invention; Figure 13 A top view of the transverse movement module of the present invention; Figure 14 This is an exploded view of the transverse module of the present invention; Figure 15 It is a three-dimensional diagram of the clamping hand of the present invention.

[0019] In the figure: 1. Material box lifting device; 11. Support plate; 12. Support shaft; 13. Support plate; 14. Suction cup; 15. Suction cup mounting plate; 16. Movable shaft; 17. Movable bearing; 18. Limit block; 19. Mounting block; 20. Stopper; 201. First positioning plate; 202. Second positioning plate; 203. Third positioning plate; 204. Fourth positioning plate; 205. Positioning block; 206. First gripper; 207. Second gripper; 208. Movable fixed seat ; 300, panel; 301, fixed guide rail; 261, clamping cylinder; 262, clamping plate; 263, clamping buckle; 264, fixing piece; 21, mounting head; 22, lifting cylinder; 2, material box clamping and moving device; 3, first material box storage device; 31, storage chamber; 311, left side panel; 312, right side panel; 313, rear side panel; 314, front movable door; 315, front connecting plate; 316, fixed angle plate; 317, first fixed block; 318, Fiber optic sensor fixing block; 319, fiber optic sensor; 320, door stopper assembly; 321, door sensor; 322, guide plate; 32, lifting tray assembly; 326, lifting plate; 327, guide shaft; 328, guide bearing; 329, first connector; 330, connector; 331, sensor; 332, lifting motor; 333, second fixing block; 334, baffle; 33, protective sensor assembly; 4, second material box storage device; 5, material box Displacement device; 51. Front baffle; 52. Rear baffle; 53. Second connecting block; 54. Left push rod; 55. Right push rod; 56. Guide block; 57. First limit plate; 58. Second limit plate; 59. Displacement cylinder; 60. Guide rail; 6. Material box mounting bracket; 62. Fixed plate; 63. Connecting column; 64. Angle seat; 65. Support column; 7. Base plate; 8. Transverse movement module; 81. Servo motor; 82. Connector; 83. Module sliding block; 9. Material box. DETAILED DESCRIPTION

[0020] 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 only part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1 、 Figure 2 and Figure 10 , an embodiment of the present invention provides: an automatic pick-up and placement lifting box device for a discharge machine, comprising a box lifting device 1, a box clamping and moving device 2, a first box storage device 3, a second box storage device 4, a box displacement device 5 and a box mounting bracket 6, the box lifting device 1 and the second box storage device 4 are installed parallel to the bottom of the base plate 7 with the base plate 7 as the symmetry plane, and the two are symmetrically distributed along the transverse central axis of the base plate 7, the box clamping and moving device 2 is fixed to the upper surface of the base plate 7 by a transverse movement module 8, and its clamping position corresponds to the vertical upper part of the box lifting device 1, the box mounting bracket 6 includes a fixing plate 62, a connecting column 63, an angle seat 64 and a support column 65, the upper end of the connecting column 63 is bolted to the bottom surface of the base plate 7, the lower end of the fixing plate 62 is vertically connected to the support column 65 through the angle seat 64, and the box displacement device 5 is fixed above the first box storage device 3 and the second box storage device 4; Through the symmetrical installation structure of the base plate 7, the material box lifting device 1 and the second material box storage device 4 form symmetrical workstations, and the material box clamping and moving device 2 moves linearly above the base plate through the transverse movement module 8 to realize the clamping and transfer of the material boxes at the workstations on both sides; the material box mounting bracket 6 is fixed to the base plate 7 through the connecting column 63 to form a stable support structure to ensure the position accuracy of each device.

[0022] See also Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7, the first material box storage device 3 and the second material box storage device 4 both include a storage cavity 31 and a lifting tray assembly 32. The storage cavity 31 is surrounded by a left side plate 311, a right side plate 312, a rear side plate 313 and a front movable door 314 to form a rectangular cavity. The bottom of the front movable door 314 is provided with a fixed front connecting plate 315. The lower ends of the left and right sides of the left and right plates 311 and 312 are bolted to the fixed plate 62 through fixed angle plates 316. The left side plate 311 of the first material box storage device 3 and the right side plate 313 of the second material box storage device 4 are fixed to the left and right sides of the second material box storage device 4. A first fixing block 317 and a fiber optic sensor fixing block 318 are vertically arranged on the upper surface of the housing 312. The fiber optic sensor 319 on the outer side of the fiber optic sensor fixing block 318 cooperates with the door sensor 321 on the front movable door 314 to limit the position through the door stopper assembly 320. The lifting plate 326 above the lifting tray assembly 32 is slidably connected to the guide bearing 328 below the fixed plate 62 through the guide shaft 327. The lifting motor 332 is fixed to the bottom surface of the fixed plate 62 through the first connecting block 329 and drives the lifting plate 326 to move up and down through the connector 330. Storage chamber 31 is used to stack and store magazines. The front movable door 314 is held in place by a door stopper assembly 320 and a door sensor 321, ensuring accurate positioning when closed. A lift motor 332 drives a lift plate 326 up and down along a guide shaft 327 to adjust the stacking height of the magazines. A fiber optic sensor 319 detects when a magazine has reached the set position, enabling automatic positioning. The storage chamber allows for batch storage of magazines, reducing manual loading. The lift tray assembly, in conjunction with the fiber optic sensor, automatically adjusts and positions the magazines, ensuring precise positioning during transfer and enhancing automation.

[0023] See also Figure 8 and Figure 9 The magazine displacement device 5 includes a front baffle 51 and a rear baffle 52 arranged in the front and rear, as well as a left push rod 54 and a right push rod 55 distributed on both sides. A displacement cylinder 59 and a guide rail 60 are installed on one side of the rear baffle 52. The left push rod 54 and the right push rod 55 are bolted to both sides of the second connecting block 53 through guide blocks 56 on both sides. The bottom of the second connecting block 53 is connected to the slider of the guide rail 60. A first limiting plate 57 is provided on the inner side of the front baffle 51, and a second limiting plate 58 is provided on the inner side of the rear baffle 52. A displacement cylinder 59 drives the second connecting block 53 to slide along the guide rail 60, driving the left and right push rods 54 and 55 to translate, transferring the magazine between the storage device and the lifting mechanism. Limiting plates on the inside of the front and rear baffles control the magazine's position during translation, preventing it from shifting. The cylinder-driven translation mechanism allows for quick and precise magazine transfer, offering greater efficiency than manual handling. The limiting plates ensure stable magazine position during transfer, preventing misalignment and resulting in failed clamping operations, improving the reliability of magazine replacement.

[0024] See also Figure 2 、 Figure 11 and Figure 12The material box lifting device 1 includes a support plate 13 and a lifting cylinder 22. The lifting cylinder 22 drives the support plate 13 to rise and fall to lift and receive the material box 9. A suction cup 14 is provided on the support plate 13 for adsorbing the material box 9. The support plate 11 in the middle position of the material box lifting device 1 is vertically fixed to the upper surface of the fixed plate 62 through the support shaft 12. The support plate 13 is slidably connected to the support plate 11 through two guide shafts. The suction cup 14 array is mounted on the lower surface of the suction cup mounting plate 15 and is bolted to the upper surface of the support plate 13. A movable shaft 16 is provided at the front and rear of the bottom of the support plate 11. The movable shaft 16 is connected to the support plate 11 through the movable bearing 17 above. The limit block 18 is fixed to the inner side of the bottom of the support plate 11. The limiter 20 is fixed between the two guide shafts through the mounting block 19. The lifting cylinder 22 is connected to the center axis of the bottom surface of the support plate 13 through the mounting head 21; Lifting cylinder 22 pushes support plate 13 up and down along the guide shaft, lifting the magazine to the gripping position. Suction cup 14 applies negative pressure to the bottom of the magazine, preventing it from shaking during lifting. Stopper 20 cooperates with stop block 18 to limit the lifting stroke of support plate 13, ensuring the accurate lifting position of the magazine. The combination of cylinder drive and suction cup adsorption achieves stable lifting and positioning of the magazine, preventing it from tilting or falling. The limit mechanism ensures accurate lifting height and precise docking with the gripping position of gripping mobile device 2, improving the reliability of the unloading process.

[0025] See also Figure 13 、 Figure 14 and Figure 15 The four sides of the material box clamping and moving device 2 are provided with a first positioning plate 201, a second positioning plate 202, a third positioning plate 203, and a fourth positioning plate 204. The upper end of the first positioning plate 201 is provided with a first clamping hand 206, and the upper end of the third positioning plate 203 is provided with a second clamping hand 207. The first clamping hand 206 and the second clamping hand 207 are composed of a clamping hand cylinder 261, a clamping plate 262 and a clamping buckle 263. The first clamping hand 206 and the second clamping hand 207 are connected by a fixing piece. 264 are fixed to the first positioning plate 201 and the third positioning plate 203 respectively. The driving clamping plate 262 is driven by the outer clamping cylinder 261 and drives the clamping buckle 263 to form a clamping structure. The outer sides of the second positioning plate 202 and the fourth positioning plate 204 are slidably connected to the fixed guide rail 301 through the movable fixing seat 208. The inner sides of the first positioning plate 201, the second positioning plate 202, the third positioning plate 203 and the fourth positioning plate 204 are each equipped with two sets of positioning blocks 205; The gripper cylinder 261 drives the clamping plate 262, which closes the clamping buckle 263 and secures the magazine. The magazine-gripping mobile device 2 is slidably connected to the fixed guide rail 301 via the movable mounting base 208. It is driven by the transverse module 8 and moves above the base plate. The positioning block 205 is used to calibrate the position of the magazine during gripping. The gripper structure provides a stable grip on the magazine, preventing it from falling during unloading. The transverse module drives the precise movement of the device, enabling automated transfer of the magazine between the lifting device and the storage device.

[0026] See also Figure 5 , four guide plates 322 are symmetrically arranged on the inner wall of the storage cavity 31. A gap is reserved between the guide plates 322 and the side of the material box 9 to form a lifting guide groove. The protection sensor assembly 33 on one side of the lifting tray assembly 32 limits the travel range of the lifting plate 326 through the cooperation of the sensor 331 and the baffle 334; Guide plate 322 forms a guide groove with the side of the magazine, guiding the magazine's vertical movement within the storage chamber to prevent deviation. Protective sensor assembly 33, through the cooperation of sensor 331 and baffle 334, limits the range of movement of lift plate 326, preventing overrun. The guide groove ensures the magazine's stable position as it moves within the storage chamber, preventing it from becoming stuck due to tilting. The sensor assembly limits travel to prevent overload or collision of the lift tray.

[0027] See also Figure 12 The sensing distance between the stopper 20 and the stopper block 18 of the magazine lifting device 1 is adjusted via a mounting block 19. The suction port of the suction cup 14 is connected to the external negative pressure system via an air pipe. Adjusting the distance between the stopper 20 and the stopper block 18 via the mounting block 19 allows for precise setting of the lifting height of the support plate 13. The suction cup 14 is connected to the negative pressure system via an air pipe, generating suction to hold the bottom of the magazine. The limit distance can be adjusted to suit magazines of varying sizes, improving the device's adaptability. Negative pressure ensures stable, non-shaky lifting of the magazine, enhancing magazine positioning accuracy.

[0028] See also Figure 14 The magazine gripping and moving device 2 is bolted to the module slide block 83 of the transverse module 8 via connector 82. A fiber optic sensor PD-C310 is mounted on the inside of the first positioning plate 201 to detect the position of the magazine 9. The magazine gripping and moving device 2 is fixed to the transverse module slide block 83 via connector 82. The servo motor drives the slide block to move the device. The fiber optic sensor PD-C310 detects whether the magazine has reached the gripping position and feeds back a signal to the control system. The transverse module drive achieves precise positioning and movement of the device with high positioning accuracy. The fiber optic sensor detects the magazine position in real time, ensuring accurate triggering of the gripping action and avoiding misoperation.

[0029] Furthermore, the pneumatic components of the device are electrically connected to the PLC control system through the solenoid valve group, the speed of the servo motor 81 of the transverse movement module 8 is adjusted by a pulse signal, and a shock-absorbing pad is set at the bottom of the support column 65 of the material box mounting bracket 6. The PLC control system controls the action of the pneumatic components through the solenoid valve group to realize the automatic operation of the device; the speed of the servo motor 81 is adjusted by a pulse signal to accurately control the moving speed of the transverse movement module; the shock-absorbing pad at the bottom of the support column 65 reduces the vibration of the device during operation.

[0030] The working method of the automatic pick-up and placement lifting box device of the unloader includes the following steps: Step 1: Before the system is operational, the magazines 9 are stacked and stored in the storage chamber 31 of the first magazine storage device 3. The lifting tray assembly 32 at the bottom of the storage chamber 31 drives the lifting plate 326 via the lifting motor 332 to adjust the stacking height of the magazines 9. The optical fiber sensor 319 detects whether the magazines 9 have reached the set position. Step 2: The system program controls the displacement cylinder 59 of the magazine displacement device 5 to drive the second connecting block 53, and the left push rod 54 and the right push rod 55 to move the unfilled magazine 9 in the first magazine storage device 3 to the support plate 13 of the magazine lifting device 1; Step 3: The lifting cylinder 22 of the material box lifting device 1 pushes the support plate 13 to rise, and at the same time, the suction cup 14 sucks the bottom of the material box 9. When the limiter 20 contacts the limit block 18, the material box 9 is lifted to the clamping position of the material box clamping moving device 2. The clamping cylinder 261 drives the clamping plate 262 to fix the material box 9 through the clamping buckle 263, and the equipment starts unloading; Step 4: After the material box 9 is full of material, the material box clamping and moving device 2 is moved to the top of the material box lifting device 1 through the transverse movement module 8. The support plate 13 of the material box lifting device 1 rises to receive the material box 9. The gripping cylinder 261 releases the gripping hand, and the lifting cylinder 22 drives the support plate 13 down to the set position. Step 5: The magazine displacement device 5 moves the full magazine 9 from the magazine lifting device 1 to the second magazine storage device 4, and the lifting tray assembly 32 of the storage cavity 31 descends to receive the stacked full magazines 9; Step 6: Repeat the above steps to realize the automatic storage and retrieval and cyclic replacement of the material box 9 in the unloader through the coordinated action of the material box lifting device 1, the material box clamping and moving device 2 and the material box displacement device 5.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for automatically picking up and placing lifting boxes of a discharger, characterized in that: The invention comprises a material box lifting device (1), a material box clamping and moving device (2), a first material box storage device (3), a second material box storage device (4), a material box displacement device (5) and a material box mounting bracket (6), wherein the material box lifting device (1) and the second material box storage device (4) are installed parallel to the bottom of the base plate (7) with the base plate (7) as a symmetry plane, and the two are symmetrically distributed along the transverse central axis of the base plate (7), and the material box clamping and moving device (2) is fixed to the upper surface of the base plate (7) through a transverse displacement module (8). , and its clamping station corresponds to the vertical upper side of the material box lifting device (1), the material box mounting bracket (6) includes a fixing plate (62), a connecting column (63), an angle seat (64) and a support column (65), the upper end of the connecting column (63) is fixed to the bottom surface of the base plate (7) by bolts, and the lower end of the fixing plate (62) is vertically connected to the support column (65) through the angle seat (64), and the material box displacement device (5) is fixed above the first material box storage device (3) and the second material box storage device (4).

2. The automatic pick-up and drop-down lifting device for a discharger according to claim 1, characterized in that: The first material box storage device (3) and the second material box storage device (4) both comprise a storage cavity (31) and a lifting tray assembly (32). The storage cavity (31) is formed into a rectangular cavity by a left side plate (311), a right side plate (312), a rear side plate (313) and a front movable door (314). A front connecting plate (315) is fixedly connected to the bottom of the front movable door (314). The lower ends of both sides of the left side plate (311) and the right side plate (312) are bolted to the fixed plate (62) through fixed angle plates (316). The left side plate (311) of the first material box storage device (3) and the right side plate (313) of the second material box storage device (4) are fixedly connected to the fixed plate (62). A first fixed block (317) and an optical fiber sensor fixed block (318) are vertically arranged on the plate (312); an optical fiber sensor (319) on the outer side of the optical fiber sensor fixed block (318) cooperates with a door sensor (321) on the front movable door (314) to limit the position through a door suction assembly (320); a lifting plate (326) above the lifting tray assembly (32) is slidably connected to a guide bearing (328) below the fixed plate (62) through a guide shaft (327); and a lifting motor (332) is fixed to the bottom surface of the fixed plate (62) through a first connecting block (329) and drives the lifting plate (326) to move up and down through a connector (330).

3. The automatic pick-up and drop-down lifting device for a discharger according to claim 2, characterized in that: The magazine displacement device (5) includes a front baffle (51) and a rear baffle (52) arranged front and rear, and a left push rod (54) and a right push rod (55) distributed on both sides. A displacement cylinder (59) and a guide rail (60) are installed on one side of the rear baffle (52). The left push rod (54) and the right push rod (55) are bolted to both sides of the second connecting block (53) through guide blocks (56) on both sides. The bottom of the second connecting block (53) is connected to the slider of the guide rail (60). A first limiting plate (57) is provided on the inner side of the front baffle (51), and a second limiting plate (58) is provided on the inner side of the rear baffle (52).

4. The automatic pick-up and drop-down lifting device for a discharger according to claim 3, characterized in that: The material box lifting device (1) includes a support plate (13) and a lifting cylinder (22). The lifting cylinder (22) drives the support plate (13) to lift and receive the material box (9). A suction cup (14) is provided on the support plate (13) for adsorbing the material box (9). The support plate (11) at the middle position of the material box lifting device (1) is vertically fixed to the upper surface of the fixed plate (62) through a support shaft (12). The support plate (13) is slidably connected to the support plate (11) through two guide shafts. The suction cup (14) is installed in an array on the suction cup. The lower surface of the disk mounting plate (15) is bolted to the upper surface of the support plate (13), and a movable shaft (16) is provided at the front and rear of the bottom of the support plate (11). The movable shaft (16) is connected to the support plate (11) through a movable bearing (17) above. The limit block (18) is fixed to the inner side of the bottom of the support plate (11), and the limiter (20) is fixed between the two guide shafts through the mounting block (19). The lifting cylinder (22) is connected to the central axis of the bottom surface of the support plate (13) through the mounting head (21).

5. The automatic pick-up and drop-down lifting device for a discharger according to claim 4, characterized in that: The four sides of the material box clamping and moving device (2) are provided with a first positioning plate (201), a second positioning plate (202), a third positioning plate (203), and a fourth positioning plate (204). The upper end of the first positioning plate (201) is provided with a first clamping hand (206), and the upper end of the third positioning plate (203) is provided with a second clamping hand (207). The first clamping hand (206) and the second clamping hand (207) are composed of a clamping hand cylinder (261), a clamping plate (262) and a clamping buckle (263). The first clamping hand (206) and the second clamping hand (207) are connected by a fixing member ( 264) are fixed to the first positioning plate (201) and the third positioning plate (203) respectively, the driving clamping plate (262) is driven by the outer clamping cylinder (261) and drives the clamping buckle (263) to form a clamping structure, the outer sides of the second positioning plate (202) and the fourth positioning plate (204) are slidably connected to the fixed guide rail (301) through the movable fixing seat (208), and the inner sides of the first positioning plate (201), the second positioning plate (202), the third positioning plate (203) and the fourth positioning plate (204) are each equipped with two sets of positioning blocks (205).

6. The automatic pick-up and drop-down lifting device for a discharger according to claim 5, characterized in that: Four guide plates (322) are symmetrically arranged on the inner side wall of the storage cavity (31), and a gap is reserved between the guide plates (322) and the side of the material box (9) to form a lifting guide groove. The protection sensor assembly (33) on one side of the lifting tray assembly (32) cooperates with the sensor (331) and the baffle (334) to limit the travel range of the lifting plate (326).

7. The automatic pick-up and drop-down lifting device for a discharger according to claim 6, characterized in that: The sensing distance between the limiter (20) and the limit block (18) of the material box lifting device (1) is adjusted by the mounting block (19), and the air intake of the suction cup (14) is connected to the external negative pressure system through an air pipe.

8. The automatic pick-up and drop-down lifting device for a discharger according to claim 7, characterized in that: The material box clamping moving device (2) is bolted to the module sliding block (83) of the transverse module (8) via a connecting piece (82), and the optical fiber sensor PD-C310 is installed on the inner side of the first positioning plate (201) for detecting the position of the material box (9).

9. The automatic pick-up and drop-down lifting device for a discharger according to claim 8, characterized in that: The pneumatic components of the device are electrically connected to the PLC control system via a solenoid valve group, the rotation speed of the servo motor (81) of the transverse movement module (8) is adjusted by a pulse signal, and a shock-absorbing pad is provided at the bottom of the support column (65) of the material box mounting bracket (6).

10. The working method of the automatic pick-up and drop-down lifting and lowering device of the unloader according to claim 9 is characterized in that: The steps include: Step 1: Before the system is operated, the material boxes (9) are stacked and stored in the storage cavity (31) of the first material box storage device (3); the lifting tray assembly (32) at the bottom of the storage cavity (31) drives the lifting plate (326) via the lifting motor (332) to adjust the stacking height of the material boxes (9); and the optical fiber sensor (319) detects whether the material boxes (9) have reached the set position; Step 2: The system program controls the displacement cylinder (59) of the material box displacement device (5) to drive the second connecting block (53), and the unloaded material box (9) in the first material box storage device (3) is translated onto the support plate (13) of the material box lifting device (1) through the left push rod (54) and the right push rod (55); Step 3: The lifting cylinder (22) of the material box lifting device (1) pushes the support plate (13) to rise, and at the same time, the suction cup (14) sucks the bottom of the material box (9). When the limiter (20) contacts the limit block (18), the material box (9) is lifted to the clamping position of the material box clamping moving device (2). The clamping cylinder (261) drives the clamping plate (262) to fix the material box (9) through the clamping buckle (263), and the equipment starts unloading; Step 4: After the material box (9) is full of material, the material box clamping moving device (2) moves to the top of the material box lifting device (1) through the transverse movement module (8), the support plate (13) of the material box lifting device (1) rises to receive the material box (9), the gripping cylinder (261) releases the gripping hand, and the lifting cylinder (22) drives the support plate (13) to descend to the set position; Step 5: The magazine displacement device (5) translates the full magazine (9) from the magazine lifting device (1) to the second magazine storage device (4), and the lifting tray assembly (32) of the storage cavity (31) descends to receive the stacked full magazines (9); Step 6: Repeat the above steps to realize the automatic storage and retrieval and cyclic replacement of the material box (9) in the unloader through the coordinated action of the material box lifting device (1), the material box clamping and moving device (2) and the material box displacement device (5).

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