A stacking and feeding mechanism for polyurethane sandwich panels

Abstract

The present invention belongs to the technical field of stacking and feeding, and in particular, relates to a stacking and feeding mechanism for polyurethane sandwich panels, including a base, and also including: a stacking storage mechanism, a pushing and feeding mechanism, a panel thickness detection and feedback mechanism, a pushing and distance control mechanism, a panel transfer mechanism, two sets of squeezing and pushing anti-adhesion mechanisms, and a PLC controller. The present invention can stably lift the polyurethane sandwich panel to a certain height for feeding operation based on the feeding demand, and can accurately control the lifting height based on the thickness of the polyurethane sandwich panel to ensure that each panel can be quickly and accurately transported to the target position, and can automatically control the clamping and fixing force of the feeding according to the weight change of the panel caused by the thickness of the panel, and can actively separate the panel to be fed from the lower panel during the feeding process, thereby avoiding the problem of affecting the stable feeding work due to the adhesion between the panels.

Description

Technical Field

[0001] The invention belongs to the technical field of stacking and feeding, and in particular relates to a stacking and feeding mechanism for polyurethane sandwich panels. Background Art

[0002] The stacking loading mechanism is a device used in an automated production line. Its main function is to stack workpieces or materials and automatically load them into the production equipment. The automated loading process can greatly reduce the time and labor intensity of manual operation and improve production efficiency. The stacking loading mechanism can stack and store materials to save production space.

[0003] In the production of polyurethane sandwich panels, stacking and feeding mechanisms are often used to assist in production and processing. Due to different production requirements, the thickness of each batch of polyurethane sandwich panels is different, so different pushing distances are required. The control of the pushing distance is that the staff predicts the polyurethane sandwich panels and then inputs specific data to adjust the pushing distance of the stacking and feeding mechanism, which increases the workload and is prone to human errors in this process, affecting the quality and efficiency of stacking and feeding. In addition, polyurethane sandwich panels may stick together during stacking, which further leads to the problem of unsmooth feeding and affects the stable feeding of polyurethane sandwich panels. At present, the clamping method of electric vacuum suction cups is often used to realize the feeding and transmission of polyurethane sandwich panels. The surface of polyurethane sandwich panels is relatively fragile. Excessive vacuum adsorption force can easily cause damage to the polyurethane sandwich panels, while too small vacuum adsorption force can easily cause the polyurethane sandwich panels to fall off, affecting the feeding operation of the polyurethane sandwich panels. Summary of the invention

[0004] The object of the present invention is to provide a stacking and loading mechanism for polyurethane sandwich panels in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a stacking and feeding mechanism for polyurethane sandwich panels, comprising a base, and also comprising:

[0006] A stacking storage mechanism is fixedly mounted on the upper end of the base;

[0007] A pushing and pushing material mechanism is fixedly mounted on the base and the stacking and storing material mechanism;

[0008] A plate thickness detection feedback mechanism is fixedly mounted on the upper rear side of the stacking and storage mechanism;

[0009] A push distance control mechanism is fixedly mounted on the upper end of the base and is electrically connected to the plate thickness detection feedback mechanism;

[0010] A plate conveying mechanism is fixedly mounted on the upper end of the base and is arranged on one side of the stacking and storage mechanism;

[0011] Two sets of squeezing and pushing anti-adhesion mechanisms are symmetrically fixed on the upper end of the stacking and storage mechanism;

[0012] The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the stacking storage mechanism, the ejection and pushing feeding mechanism, the plate thickness detection feedback mechanism, the ejection distance control mechanism, the plate transfer mechanism and the squeezing and pushing anti-adhesion mechanism.

[0013] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, the stacking and storage mechanism includes a support platform fixedly mounted on the upper end of the base, the lower end of the support platform is symmetrically fixedly connected to two side plates, the lower end of the support platform is fixedly mounted with a double-axis motor located between the two side plates, both end output ends of the double-axis motor are fixedly connected with a transmission screw through a coupling, the end of the transmission screw away from the double-axis motor is rotatably connected to the side plate through a bearing, a movable seat is threadedly sleeved on the rod wall of the transmission screw, the upper end of the movable seat passes through the upper end of the support platform through a strip-shaped through opening opened on the surface of the support platform, the upper end side wall of the movable seat is fixedly connected with a U-shaped limit baffle, and the lower end of the U-shaped limit baffle is in sliding contact with the upper end of the support platform.

[0014] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, the pushing and feeding mechanism includes two electric push rods symmetrically fixedly installed on the upper end of the base, and the upper surface of the support table is embedded with a pushing plate located between the two U-shaped limit baffles. The upper moving end of the electric push rod passes through the lower end of the support table and is fixedly connected to the lower end of the pushing plate.

[0015] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, the panel thickness detection feedback mechanism includes a fixed plate fixedly mounted on the rear side of the upper end of the support platform, a small electric push rod is fixedly inserted on the surface of the fixed plate, the movable end of the small electric push rod is fixedly connected to a feedback shell, the front side of the feedback shell is set as an opening structure, the inner wall of the feedback shell is rotatably connected to a vertically arranged rotating screw, the upper end of the feedback shell is fixedly mounted with a rotating motor for driving the rotating screw to rotate, the rod wall of the rotating screw is threadedly sleeved with a lifting seat, the inner wall of the feedback shell is also fixedly connected to a vertically arranged limit slide rod, and the surface of the lifting seat is provided with a limit slide rod that slides with the limit slide rod. The limit sliding hole is connected with a movable sleeve, a vertically arranged thickness feedback resistor rod is fixedly installed on the rear side of the inner wall of the feedback shell, a thickness feedback conductive contact piece electrically in contact with the thickness feedback resistor rod is fixedly connected to the rear end of the lifting seat, and the front end of the lifting seat is fixedly connected to the mounting shell, and the front end movable sleeve of the mounting shell has multiple push-pull rods arranged side by side, the front ends of the multiple push-pull rods are fixedly connected to the same measuring plate, the rear ends of the multiple push-pull rods are fixedly connected to the same push-pull plate, the push-pull plate and the mounting shell are fixedly connected to a plurality of reset springs sleeved on the outside of the push-pull rods on the opposite side, and an in-position switch corresponding to the position of the push-pull plate is fixedly installed on the front side of the inner wall of the mounting shell.

[0016] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, the pushing distance control mechanism includes a control shell fixedly mounted on the upper end of the base, a first driving screw is rotatably connected to the lower side of the inner wall of the control shell, a first driving motor for driving the first driving screw to rotate is fixedly mounted on the outer wall of the control shell, a second driving screw is rotatably connected to the upper side of the inner wall of the control shell, a second driving motor for driving the second driving screw to rotate is fixedly mounted on the outer wall of the control shell, a trigger plate is threadedly sleeved on the rod wall of the first driving screw, an adjusting plate is threadedly sleeved on the rod wall of the second driving screw, confirmation switches are fixedly mounted on the inner wall of the control shell and the side walls of the adjusting plate, and the two confirmation switches are arranged on opposite sides of the trigger plate.

[0017] In the above-mentioned stacking and loading mechanism for polyurethane sandwich panels, the panel transfer mechanism includes an electric telescopic rod rotatably connected to the upper end of the base, and a motor rotating assembly for driving the electric telescopic rod to rotate is fixedly installed on the upper end of the base. The upper movable end of the electric telescopic rod is fixedly connected to a cross plate, and an electric vacuum suction cup is fixedly installed on the lower side of one end of the cross plate, and a counterweight block is fixedly connected to the other end of the cross plate, and the thickness feedback resistor rod and the thickness feedback conductive connector are connected in series to the power supply circuit of the electric vacuum suction cup.

[0018] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, the squeezing and pushing anti-adhesion mechanism includes a U-shaped positioning plate fixedly mounted on the outer wall of the upper end of the U-shaped limit baffle, the inner side of the U-shaped positioning plate is rotatably connected to a vertically arranged adjusting screw, the outer wall of the U-shaped positioning plate is fixedly mounted with a servo motor for driving the adjusting screw to rotate, the rod wall of the adjusting screw is threadedly sleeved with an adjusting seat, one side of the adjusting seat is fixedly connected with a synchronous plate, one side of the synchronous plate is provided with an extending plate, and a plurality of positioning screws are symmetrically fixedly connected to the side of the synchronous plate close to the extending plate A slide rod, a positioning slide hole slidably connected to the positioning slide rod is provided on the surface of the extending plate, a pull-back spring sleeved on the outside of the positioning slide rod is fixedly connected between the synchronous plate and the extending plate, a force-bearing permanent magnet plate is fixedly connected to the side of the extending plate close to the synchronous plate, a force-adding electromagnetic plate is fixedly installed on the side wall of the synchronous plate, a trapezoidal partition plate is fixedly connected to the side of the extending plate away from the synchronous plate, a rectangular opening is provided on the side wall of the U-shaped limit baffle for the partition plate to extend through, and the thickness feedback resistor rod and the thickness feedback conductive contact are connected in series to the power supply circuit of the force-adding electromagnetic plate.

[0019] In the above-mentioned stacking and feeding mechanism for polyurethane sandwich panels, a guide slide rod is fixedly connected to the inner wall of the support platform corresponding to the strip-shaped opening, and a guide slide hole slidably sleeved with the guide slide rod is opened on the side wall of the movable seat.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the stacking storage mechanism, multiple polyurethane sandwich panels can be stably stacked together, which effectively saves the space occupied by the panels, facilitates the stacking operation of the panels, effectively improves the loading efficiency, and ensures the stability of subsequent loading work.

[0022] 2. Through the set push feeding mechanism, push distance control mechanism and plate thickness detection feedback mechanism, the polyurethane sandwich plate can be stably lifted to a certain height for loading operation based on the loading demand, and the lifting height can be accurately adjusted based on the thickness of the polyurethane sandwich plate to ensure that each plate can be quickly and accurately transported to the target position, reducing adjustment time and erroneous operation, achieving continuous and smooth loading work, and thus improving the overall loading efficiency.

[0023] 3. Through the set plate transfer mechanism and plate thickness detection feedback mechanism, the lifted plate can be quickly transferred to the next production process. At the same time, according to the change of plate weight caused by plate thickness, the clamping and fixing force of the feeding can be automatically adjusted, which not only ensures the stable transportation of polyurethane sandwich plates, but also avoids the problem of damage to the plates caused by excessive adsorption and clamping force.

[0024] 4. Through the set squeezing and pushing anti-adhesion mechanism and plate thickness detection feedback mechanism, the plate to be loaded can be actively separated from the lower plate during the loading process, thereby avoiding the problem of stable loading work affected by the adhesion between the plates. In addition, the separation position between two adjacent plates can be automatically determined according to the thickness of the plates, making it more convenient to use and effectively improving the loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the stacking storage mechanism of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the ejecting and feeding mechanism of the present invention;

[0028] Figure 4 It is a side cross-sectional structural schematic diagram of the plate thickness detection feedback mechanism of the present invention;

[0029] Figure 5 It is a cross-sectional structural schematic diagram of the push distance control mechanism of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the plate transfer mechanism of the present invention;

[0031] Figure 7 It is a schematic cross-sectional structure diagram of the squeezing and pushing anti-adhesion mechanism of the present invention;

[0032] Figure 8 yes Figure 7 A magnified structural diagram of part A.

[0033] In the figure: 1 base, 2 stacking storage mechanism, 21 support table, 22 side plate, 23 double-axis motor, 24 transmission screw, 25 moving seat, 26 strip opening, 27 U-shaped limit baffle, 28 guide slide, 3 ejection and feeding mechanism, 31 electric push rod, 32 ejection plate, 4 plate thickness detection feedback mechanism, 41 fixed plate, 42 small electric push rod, 43 feedback shell, 44 rotating screw, 45 rotating motor, 46 lifting seat, 47 limit slide, 48 thickness feedback resistor rod, 49 thickness feedback conductive contact, 410 installation shell, 411 push-pull rod, 412 measuring plate, 413 push-pull plate, 414 reset spring, 415 in-place switch, 5 ejection distance control mechanism, 51 control shell, 52 first drive screw, 53 first drive motor, 54 second drive screw, 55 second drive motor, 56 trigger plate, 57 adjustment plate, 58 confirmation switch, 6 plate transfer mechanism, 61 electric telescopic rod, 62 motor rotation assembly, 63 horizontal plate, 64 electric vacuum suction cup, 65 counterweight, 7 squeezing and pushing anti-adhesion mechanism, 71 U-shaped positioning plate, 72 adjusting screw, 73 servo motor, 74 adjusting seat, 75 synchronous plate, 76 extension plate, 77 positioning slide bar, 78 return spring, 79 force-bearing permanent magnetic plate, 710 force-adding electromagnetic plate, 711 partition plate, 712 rectangular opening, 8 PLC controller. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0035] like Figure 1-Figure 8 As shown, a stacking and loading mechanism for polyurethane sandwich panels includes a base 1 and also includes:

[0036] The stacking storage mechanism 2 is fixedly mounted on the upper end of the base 1. The stacking storage mechanism 2 includes a support platform 21 fixedly mounted on the upper end of the base 1. The lower end of the support platform 21 is symmetrically fixedly connected to two side plates 22. A double-axis motor 23 located between the two side plates 22 is fixedly mounted on the lower end of the support platform 21. Both output ends of the double-axis motor 23 are fixedly connected to a transmission screw 24 through a coupling. The end of the transmission screw 24 away from the double-axis motor 23 is rotatably connected to the side plate 22 through a bearing. A movable seat 25 is threadedly sleeved on the rod wall of the movable screw rod 24, and the upper end of the movable seat 25 passes through the upper end of the support platform 21 through a strip-shaped opening 26 opened on the surface of the support platform 21. A U-shaped limit baffle 27 is fixedly connected to the upper end side wall of the movable seat 25, and the lower end of the U-shaped limit baffle 27 is in sliding contact with the upper end of the support platform 21. A guide slide rod 28 is fixedly connected to the inner wall of the support platform 21 corresponding to the strip-shaped opening 26, and a guide slide hole slidably sleeved with the guide slide rod 28 is opened on the side wall of the movable seat 25.

[0037] The pushing and feeding mechanism 3 is fixedly mounted on the base 1 and the stacking and storage mechanism 2. The pushing and feeding mechanism 3 includes two electric push rods 31 symmetrically fixedly mounted on the upper end of the base 1. A pushing plate 32 located between two U-shaped limit baffles 27 is embedded on the upper surface of the support platform 21. The upper moving end of the electric push rod 31 passes through the lower end of the support platform 21 and is fixedly connected to the lower end of the pushing plate 32.

[0038] The plate thickness detection feedback mechanism 4 is fixedly installed on the upper rear side of the stacking storage mechanism 2. The plate thickness detection feedback mechanism 4 includes a fixed plate 41 fixedly installed on the upper rear side of the support platform 21. A small electric push rod 42 is fixedly inserted on the surface of the fixed plate 41. The movable end of the small electric push rod 42 is fixedly connected with a feedback shell 43. The front side of the feedback shell 43 is set as an opening structure. The inner wall of the feedback shell 43 is rotatably connected with a vertically arranged rotating screw 44. A rotating motor 45 for driving the rotating screw 44 to rotate is fixedly installed on the upper end of the feedback shell 43. The rod wall of the rotating screw 44 is threadedly sleeved with a lifting seat 46. The inner wall of the feedback shell 43 is also fixedly connected with a vertically arranged limit slide 47. The surface of the lifting seat 46 is provided with a limit slide slidably sleeved with the limit slide 47. The feedback shell 43 has a hole, a thickness feedback resistor rod 48 arranged vertically is fixedly installed on the rear side of the inner wall, a thickness feedback conductive contact piece 49 which is in electrical contact with the thickness feedback resistor rod 48 is fixedly connected to the rear end of the lifting seat 46, a mounting shell 410 is fixedly connected to the front end of the lifting seat 46, a plurality of push-pull rods 411 arranged side by side are movablely inserted into the front end of the mounting shell 410, a plurality of push-pull rods 411 are fixedly connected to the front ends of the plurality of push-pull rods 411 with the same measuring plate 412, a plurality of push-pull rods 411 are fixedly connected to the rear ends with the same push-pull plate 413, a plurality of reset springs 414 which are sleeved on the outside of the push-pull rods 411 are fixedly connected to the opposite side of the push-pull plate 413 and the mounting shell 410, and an in-position switch 415 which is arranged corresponding to the position of the push-pull plate 413 is fixedly installed on the front side of the inner wall of the mounting shell 410.

[0039] The pushing distance control mechanism 5 is fixedly mounted on the upper end of the base 1 and is electrically connected to the plate thickness detection feedback mechanism 4. The pushing distance control mechanism 5 includes a control shell 51 fixedly mounted on the upper end of the base 1. A first driving screw 52 is rotatably connected to the lower side of the inner wall of the control shell 51. A first driving motor 53 for driving the first driving screw 52 to rotate is fixedly mounted on the outer wall of the control shell 51. A second driving screw 54 is rotatably connected to the upper side of the inner wall of the control shell 51. A second driving motor 55 for driving the second driving screw 54 to rotate is fixedly mounted on the outer wall of the control shell 51. A trigger plate 56 is threadedly sleeved on the rod wall of the first driving screw 52, ​​and an adjusting plate 57 is threadedly sleeved on the rod wall of the second driving screw 54. Confirmation switches 58 are fixedly mounted on the inner wall of the control shell 51 and the side walls of the adjusting plate 57. The two confirmation switches 58 are arranged on opposite sides of the trigger plate 56.

[0040] The plate conveying mechanism 6 is fixedly mounted on the upper end of the base 1 and is arranged on one side of the stacking storage mechanism 2. The plate conveying mechanism 6 includes an electric telescopic rod 61 rotatably connected to the upper end of the base 1. A motor rotating assembly 62 for driving the electric telescopic rod 61 to rotate is fixedly mounted on the upper end of the base 1. A horizontal plate 63 is fixedly connected to the upper movable end of the electric telescopic rod 61. An electric vacuum suction cup 64 is fixedly mounted on the lower side of one end of the horizontal plate 63. A counterweight block 65 is fixedly connected to the other end of the horizontal plate 63. The thickness feedback resistor rod 48 and the thickness feedback conductive contact 49 are connected in series to the power supply circuit of the electric vacuum suction cup 64.

[0041] Two groups of squeezing and pushing anti-adhesion mechanisms 7 are symmetrically fixedly installed at the upper end of the stacking storage mechanism 2. The squeezing and pushing anti-adhesion mechanisms 7 include a U-shaped positioning plate 71 fixedly installed on the outer wall of the upper end of the U-shaped limiting baffle 27. The inner side of the U-shaped positioning plate 71 is rotatably connected with a vertically arranged adjusting screw 72. The outer wall of the U-shaped positioning plate 71 is fixedly provided with a servo motor 73 for driving the adjusting screw 72 to rotate. The rod wall of the adjusting screw 72 is threadedly sleeved with an adjusting seat 74. A synchronous plate 75 is fixedly connected to one side of the adjusting seat 74. A protruding plate 76 is provided on one side of the synchronous plate 75. A plurality of positioning slide rods 77 are symmetrically fixedly connected to one side of the synchronous plate 75 close to the protruding plate 76. A positioning slide hole is provided on the surface of the plate 76 for sliding engagement with the positioning slide bar 77, a return spring 78 is fixedly connected between the synchronous plate 75 and the extending plate 76 and is sleeved on the outside of the positioning slide bar 77, a force-bearing permanent magnet plate 79 is fixedly connected to the side of the extending plate 76 close to the synchronous plate 75, a force-applying electromagnetic plate 710 is fixedly installed on the side wall of the synchronous plate 75, a partition plate 711 of a trapezoidal structure is fixedly connected to the side of the extending plate 76 away from the synchronous plate 75, a rectangular opening 712 is provided on the side wall of the U-shaped limit baffle 27 for the partition plate 711 to extend through, and a thickness feedback resistor rod 48 and a thickness feedback conductive contact piece 49 are connected in series to the power supply circuit of the force-applying electromagnetic plate 710.

[0042] The PLC controller 8 is fixedly mounted on the upper end of the base 1, and is electrically connected to the stacking storage mechanism 2, the ejecting and pushing feeding mechanism 3, the plate thickness detection feedback mechanism 4, the ejecting and pushing distance control mechanism 5, the plate conveying mechanism 6 and the squeezing and pushing anti-adhesion mechanism 7 respectively.

[0043] The operating principle of the present invention is described as follows: first, a polyurethane sandwich plate is placed on the support table 21, and the PLC controller 8 controls the small electric push rod 42 to push the measuring plate 412 toward the polyurethane sandwich plate, so that the measuring plate 412 contacts the bottom end of the polyurethane sandwich plate, and the measuring plate 412 moves toward the mounting shell 410, thereby stretching the reset spring 414, and the PLC controller 8 controls the rotation motor 45 to operate, and the rotation motor 45 drives the rotating screw 44 to rotate, and the threaded sleeve connection between the rotating screw 44 and the lifting seat 46 and the limiting guide action of the limiting slide 47 on the lifting seat 46 The lifting seat 46 drives the measuring plate 412 to gradually move upward until the bottom section of the measuring plate 412 moves to the upper end surface of the polyurethane sandwich plate. At this time, under the action of the reset spring 414, the push-pull plate 413 pushes the push-pull rod 411 and the measuring plate 412 to further move toward the polyurethane sandwich plate, so that the push-pull plate 413 presses on the in-position switch 415. At this time, the PLC controller 8 controls the rotating motor 45 to stop the action. At this time, the upward movement height of the measuring plate 412 represents the thickness of the polyurethane sandwich plate. The PLC controller 8 then controls the small electric push rod 42 to drive the measuring plate 412 to move back to the initial position.

[0044] Then, multiple polyurethane sandwich panels are stacked together. After stacking, the PLC controller 8 controls the dual-axis motor 23 to move, and the dual-axis motor 23 drives the two transmission screws 24 to rotate synchronously. Through the threaded sleeve effect of the transmission screw 24 and the moving seat 25, the moving seat 25 drives the two U-shaped limit baffles 27 to move toward each other, thereby making the multiple polyurethane sandwich panels stably and accurately stacked together;

[0045] The PLC controller 8 first controls the electric push rod 31 to move, and the electric push rod 31 pushes the push plate 32 to drive multiple polyurethane sandwich panels to move upward until the upper end surface of the uppermost polyurethane sandwich panel is flush with the upper end of the U-shaped limit baffle 27, and the loading work is officially started;

[0046] In the process of detecting the thickness of the polyurethane sandwich panel, while the rotating motor 45 is in motion, the PLC controller 8 controls the servo motor 73 and the second drive motor 55 to move synchronously, and the servo motor 73 drives the adjusting screw 72 to rotate, and the adjusting seat 74 drives the partition plate 711 to gradually move downward through the threaded sleeve effect of the adjusting screw 72 and the adjusting seat 74. Specifically, the greater the thickness of the polyurethane sandwich panel, the longer the rotation time of the rotating motor 45 and the servo motor 73, and the greater the downward distance of the partition plate 711. Based on the thickness of the polyurethane sandwich panel, the partition plate 711 is accurately moved to the gap position between the uppermost polyurethane sandwich panel and the lower polyurethane sandwich panel. When loading, the PLC controller 8 controls the power supply equipment to supply power to the force electromagnetic plate 710, and the force electromagnetic plate 710 is energized to generate the same magnetic properties as the force permanent magnet plate 79. , and then drive the partition plate 711 to move toward the polyurethane sandwich plate along the positioning slide bar 77 to overcome the elastic force of the return spring 78, and lift the uppermost polyurethane sandwich plate, so that the uppermost polyurethane sandwich plate is separated from the lower polyurethane sandwich plate, and the adhesion between the two plates is prevented from affecting the feeding problem. The thickness feedback conductive contact 49 and the thickness feedback resistor rod 48 are connected in series to the power supply circuit of the force electromagnetic plate 710. When the thickness of the polyurethane sandwich plate is greater, the sliding distance of the thickness feedback conductive contact 49 on the thickness feedback resistor rod 48 is greater, and the access resistance of the thickness feedback resistor rod 48 is smaller, and the power supply current of the force electromagnetic plate 710 is greater, so that the magnetism of the force electromagnetic plate 710 is stronger, so that the partition plate 711 can generate a greater squeezing and pushing separation force to separate the two uppermost polyurethane sandwich plates;

[0047] The motor rotating assembly 62 drives the electric telescopic rod 61 to rotate, so that the electric vacuum suction cup 64 moves to the upper side of the polyurethane sandwich plate, and the PLC controller 8 controls the electric telescopic rod 61 to drive the horizontal plate 63 to move downward, so that the electric vacuum suction cup 64 contacts the uppermost polyurethane sandwich plate, and the electric vacuum suction cup 64 generates a vacuum adsorption force to fix the polyurethane sandwich plate, and then the polyurethane sandwich plate is moved to the next processing position through the electric telescopic rod 61 and the motor rotating assembly 62, so as to realize fast loading, and the thickness feedback conductive contact 49 and the thickness feedback resistor rod 48 are connected in series to the power supply circuit of the electric vacuum suction cup 64, and the electric vacuum suction cup 64 is a DC motor device. When the thickness of the polyurethane sandwich plate is larger, the access resistance value of the thickness feedback resistor rod 48 is smaller, and the power supply current of the electric vacuum suction cup 64 is larger, and the electric vacuum suction cup 64 provides a larger vacuum adsorption force to ensure the stable adsorption and fixation of the polyurethane sandwich plate;

[0048] After the loading is completed, the PLC controller 8 first controls the power supply device to cut off the power supply to the electromagnetic plate 710, so that the partition plate 711 is reset to the initial position to wait for the next loading work;

[0049] When the rotating motor 45 rotates, the PLC controller 8 controls the second drive motor 55 to move synchronously, and the second drive motor 55 drives the second drive screw 54 to rotate. Through the threaded sleeve effect of the second drive screw 54 and the adjusting plate 57, the adjusting plate 57 drives one of the confirmation switches 58 to move in the control shell 51. Specifically, the greater the thickness of the polyurethane sandwich sheet, the longer the rotation time of the rotating motor 45 and the second drive motor 55, and thus the greater the movement distance of the adjusting plate 57, and the greater the distance between the confirmation switch 58 on the adjusting plate 57 and the trigger plate 56. During the pushing and loading process, the electric push rod 31 pushes the pushing plate 32 to move upward, thereby driving multiple stacked polyurethane sandwich sheets to continue to move upward, and when the electric push rod 31 moves, the PLC controller 8 synchronously controls the first drive motor 53 to move. 53 drives the first driving screw 52 to rotate, and the threaded sleeve action of the first driving screw 52 and the trigger plate 56 makes the trigger plate 56 move toward the adjusting plate 57 first, until the trigger plate 56 presses on the confirmation switch 58 on the side wall of the adjusting plate 57, indicating that the upward movement distance of the push plate 32 reaches the thickness of the polyurethane sandwich sheet, so that the next polyurethane sandwich sheet is moved to the position to be loaded, and the PLC controller 8 controls the first driving motor 53 and the electric push rod 31 to stop working, and continues to operate through the sheet transfer mechanism 6 and the squeezing and pushing anti-adhesion mechanism 7 to complete the loading of the next polyurethane sandwich sheet, and after the trigger plate 56 presses on the confirmation switch 58, the PLC controller 8 controls the first driving motor 53 to reverse, so that in the subsequent action of the first driving motor 53, the trigger plate 56 moves toward another confirmation switch 58.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stacking and loading mechanism for polyurethane sandwich panels, comprising a base (1), characterized in that: Also includes: A stacking storage mechanism (2) is fixedly mounted on the upper end of the base (1); A pushing and ejecting material mechanism (3) fixedly mounted on the base (1) and the stacking and storing material mechanism (2); A plate thickness detection feedback mechanism (4) is fixedly mounted on the upper rear side of the stacking and storage mechanism (2); A push distance control mechanism (5) is fixedly mounted on the upper end of the base (1) and is electrically connected to the plate thickness detection feedback mechanism (4); A plate conveying mechanism (6) is fixedly mounted on the upper end of the base (1) and is arranged on one side of the stacking and storage mechanism (2); Two sets of squeezing and pushing anti-adhesion mechanisms (7) are symmetrically fixedly mounted on the upper end of the stacking and storage mechanism (2); A PLC controller (8) is fixedly mounted on the upper end of the base (1) and is electrically connected to the stacking and storage mechanism (2), the ejection and pushing mechanism (3), the plate thickness detection and feedback mechanism (4), the ejection and pushing distance control mechanism (5), the plate transfer mechanism (6) and the squeezing and pushing anti-adhesion mechanism (7); The stacking storage mechanism (2) comprises a support platform (21) fixedly mounted on the upper end of the base (1); the lower end of the support platform (21) is symmetrically fixedly connected to two side plates (22); a double-axis motor (23) located between the two side plates (22) is fixedly mounted on the lower end of the support platform (21); both output ends of the double-axis motor (23) are fixedly connected to a transmission screw (24) via a coupling; one end of the transmission screw (24) away from the double-axis motor (23) is rotationally connected to the side plate (22) via a bearing; a movable seat (25) is threadedly sleeved on the rod wall of the transmission screw (24); the upper end of the movable seat (25) passes through the upper end of the support platform (21) through a strip-shaped through-hole (26) provided on the surface of the support platform (21); a U-shaped limit baffle (27) is fixedly connected to the upper end side wall of the movable seat (25); the lower end of the U-shaped limit baffle (27) is in sliding contact with the upper end of the support platform (21); The push-pushing mechanism (3) comprises two electric push rods (31) symmetrically fixedly mounted on the upper end of the base (1); a push plate (32) located between the two U-shaped limit baffles (27) is embedded on the upper surface of the support platform (21); the upper movable end of the electric push rod (31) passes through the lower end of the support platform (21) and is fixedly connected to the lower end of the push plate (32); The plate thickness detection feedback mechanism (4) comprises a fixed plate (41) fixedly mounted on the rear side of the upper end of the support platform (21); a small electric push rod (42) is fixedly sleeved on the surface of the fixed plate (41); a movable end of the small electric push rod (42) is fixedly connected to a feedback shell (43); the front side of the feedback shell (43) is set as an opening structure; the inner wall of the feedback shell (43) is rotatably connected to a vertically arranged rotating screw (44); a rotating motor (45) for driving the rotating screw (44) to rotate is fixedly mounted on the upper end of the feedback shell (43); a lifting seat (46) is threadedly sleeved on the rod wall of the rotating screw (44); the inner wall of the feedback shell (43) is also fixedly connected to a vertically arranged limiting slide rod (47); a limiting slide hole is opened on the surface of the lifting seat (46) and is slidably sleeved with the limiting slide rod (47); the inner wall of the feedback shell (43) is rearwardly A vertically arranged thickness feedback resistor rod (48) is fixedly installed on the side, a thickness feedback conductive contact piece (49) which is in electrical contact with the thickness feedback resistor rod (48) is fixedly connected to the rear end of the lifting seat (46), a mounting shell (410) is fixedly connected to the front end of the lifting seat (46), a plurality of push-pull rods (411) arranged side by side are provided on the front movable sleeve of the mounting shell (410), a plurality of the push-pull rods (411) are fixedly connected to the front end of the plurality of the push-pull rods (411) with a same measuring plate (412), a plurality of the push-pull rods (411) are fixedly connected to the rear end with a same push-pull plate (413), a plurality of return springs (414) which are sleeved on the outside of the push-pull rods (411) are fixedly connected to the opposite side of the push-pull plate (413) and the mounting shell (410), and an in-position switch (415) which is arranged corresponding to the position of the push-pull plate (413) is fixedly installed on the front side of the inner wall of the mounting shell (410); The pushing distance control mechanism (5) comprises a control shell (51) fixedly mounted on the upper end of the base (1); a first driving screw (52) is rotatably connected to the lower side of the inner wall of the control shell (51); a first driving motor (53) for driving the first driving screw (52) to rotate is fixedly mounted on the outer wall of the control shell (51); a second driving screw (54) is rotatably connected to the upper side of the inner wall of the control shell (51); a second driving motor (55) for driving the second driving screw (54) to rotate is fixedly mounted on the outer wall of the control shell (51); a trigger plate (56) is threadedly sleeved on the rod wall of the first driving screw (52); an adjustment plate (57) is threadedly sleeved on the rod wall of the second driving screw (54); confirmation switches (58) are fixedly mounted on the inner wall of the control shell (51) and the side wall of the adjustment plate (57); and two confirmation switches (58) are arranged on opposite sides of the trigger plate (56); The plate transfer mechanism (6) comprises an electric telescopic rod (61) rotatably connected to the upper end of the base (1); a motor rotating assembly (62) for driving the electric telescopic rod (61) to rotate is fixedly mounted on the upper end of the base (1); a horizontal plate (63) is fixedly mounted on the upper movable end of the electric telescopic rod (61); an electric vacuum suction cup (64) is fixedly mounted on the lower side of one end of the horizontal plate (63); a counterweight (65) is fixedly mounted on the other end of the horizontal plate (63); and the thickness feedback resistor rod (48) and the thickness feedback conductive contact sheet (49) are connected in series to a power supply circuit of the electric vacuum suction cup (64); The squeezing and pushing anti-adhesion mechanism (7) comprises a U-shaped positioning plate (71) fixedly mounted on the outer wall of the upper end of the U-shaped limiting baffle (27); the inner side of the U-shaped positioning plate (71) is rotatably connected to a vertically arranged adjusting screw (72); the outer wall of the U-shaped positioning plate (71) is fixedly mounted with a servo motor (73) for driving the adjusting screw (72) to rotate; the rod wall of the adjusting screw (72) is threadedly sleeved with an adjusting seat (74); one side of the adjusting seat (74) is fixedly connected to a synchronizing plate (75); one side of the synchronizing plate (75) is provided with an extending plate (76); a side of the synchronizing plate (75) close to the extending plate (76) is symmetrically fixedly connected to a plurality of positioning slide bars (77); a surface of the extending plate (76) is provided with a servo motor (73) for driving the adjusting screw (72) to rotate. A positioning slide hole is slidably sleeved on the slide bar (77); a pull-back spring (78) sleeved on the outside of the positioning slide bar (77) is fixedly connected between the synchronous plate (75) and the extending plate (76); a force-bearing permanent magnet plate (79) is fixedly connected to the side of the extending plate (76) close to the synchronous plate (75); a force-applying electromagnetic plate (710) is fixedly installed on the side wall of the synchronous plate (75); a partition plate (711) of a trapezoidal structure is fixedly connected to the side of the extending plate (76) away from the synchronous plate (75); a rectangular opening (712) for the partition plate (711) to extend through is opened on the side wall of the U-shaped limit baffle (27); and the thickness feedback resistor rod (48) and the thickness feedback conductive contact piece (49) are connected in series to the power supply circuit of the force-applying electromagnetic plate (710).

2. A stacking and feeding mechanism for polyurethane sandwich panels according to claim 1, characterized in that: A guide slide bar (28) is fixedly connected to the inner wall of the support platform (21) corresponding to the strip-shaped opening (26), and a guide slide hole slidably sleeved with the guide slide bar (28) is provided on the side wall of the movable seat (25).

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