Plywood shaping device for container bottom plate

Abstract

The invention relates to the technical field of plywood shaping, in particular to a container bottom plate plywood shaping device which comprises a supporting hydraulic base, a clamping and fixing mechanism is fixed to the upper end of the supporting hydraulic base, and a PLC is fixed to the clamping and fixing mechanism; and the pressure forming mechanism is arranged above the clamping and fixing mechanism. The planeness of the plywood can be detected through rolling of the pressure sensor making contact with the plywood, when it is detected that protrusions exist on the surface of the plywood, the pressure sensor can immediately transmit electric signals to the PLC, and after the PLC receives the electric signals, the hydraulic oil pumping device and the electric telescopic rod are rapidly controlled, so that the flatness of the plywood is detected. According to the automatic detection and treatment method, the motor drives the pressurizing roller to generate high downward pressure, and meanwhile, the motor rotates forwards and backwards repeatedly to drive the pressurizing roller to roll the convex part repeatedly, so that the convex part is repaired, and the automatic detection and treatment method greatly improves the detection and treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plywood shaping, and in particular to a plywood shaping device for a container bottom plate. Background Art

[0002] As a key part of the container structure, the packing floor bears the entire weight of the goods, so it needs to have sufficient strength and rigidity. Plywood is made of multiple layers of thin wood sheets glued together by adhesives. It has high strength and stability, high surface flatness, and relatively good waterproof performance. The thickness and number of layers can be adjusted according to needs to adapt to different transportation environments. It is an ideal material for making container floors. In the plywood production process, the shaping device is crucial. It is responsible for applying uniform pressure to the plywood. The size, action time and uniformity of the distribution of the pressure directly affect the molding quality of the plywood. For example, a plywood shaping device for container floors disclosed in Publication No. CN118305856A can be used in the production of plywood.

[0003] The shaping device can make each layer of veneer fit tightly and keep it in the correct position by applying uniform pressure and appropriate temperature (hot pressing shaping), effectively solving the problems of warping and deformation that are easy to occur in the gluing process of plywood. However, the quality of the gluing process has a great influence on the flatness of the plywood. Too much or too little glue, as well as uneven glue application, will lead to different gluing degrees of different parts of the plywood, and then deformation. Even if the shaping device is continuously improved, it is difficult to completely eliminate the unevenness of the plywood surface. In actual production, the surface flatness of plywood is mostly judged by workers' observation, or detection equipment is used to detect it before the subsequent process. However, these methods take a lot of time to find unqualified products from plywood, reducing subsequent production efficiency. Moreover, unqualified products are generally repaired manually, further reducing the overall production efficiency. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a plywood shaping device for container bottom plates, which can effectively solve the problem that the prior art needs to spend a lot of time to find out unqualified products from the plywood.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a plywood shaping device for a container bottom plate, comprising: a supporting hydraulic base, a clamping and fixing mechanism is fixed on the upper end of the supporting hydraulic base, and a PLC controller is fixed on the clamping and fixing mechanism; A pressurized forming mechanism is arranged above the clamping and fixing mechanism, and the pressurized forming mechanism includes a downward pressing top plate fixed on a supporting hydraulic base, a rectangular groove is symmetrically opened at the lower end of the downward pressing top plate, a reciprocating screw rod is rotatably connected in the rectangular groove, a screw rod sleeve is sleeved on the surface of the reciprocating screw rod, an electric telescopic rod is embedded at the lower end of the screw rod sleeve, a support block is fixed at the telescopic end of the electric telescopic rod, a material discharge assembly is symmetrically fixed at the lower end of the downward pressing top plate, and a detection assembly is rotatably connected between the two support blocks; The material removal assembly comprises a limit fixing plate fixed to the lower end of the lower pressure top plate, the lower end of the limit fixing plate is elastically connected to a movable fixing plate, an electromagnetic block is embedded in the middle of the lower end of the limit fixing plate, a permanent magnet block is embedded in the middle of the upper end of the movable fixing plate, the electromagnetic block and the permanent magnet block are magnetically repelled, an electric driving frame is provided at one end of the movable fixing plate close to the reciprocating screw rod, and the permanent magnet block is located directly below the electromagnetic block; The two material removal assemblies are connected by belt transmission, and at least one of the material removal assemblies is driven by a motor.

[0006] Preferably, the two electric telescopic rods and the electromagnetic block are connected to the PLC controller using electrical signals, and the electromagnetic block on the side away from the PLC controller always remains powered on.

[0007] Preferably, the clamping and fixing mechanism includes two unloading plates fixed to the upper end of the supporting hydraulic base, rubber blocks are fixed in an array on the ends of the two unloading plates close to each other, an emergency stop controller is fixed on the unloading plate close to the PLC controller, a hydraulic telescopic rod is fixed to the middle part of the ends of the unloading plates away from each other, clamping plates are fixed at the telescopic ends of the two hydraulic telescopic rods, two symmetrical limit plates are fixed on the ends of the two clamping plates close to each other, and a correction assembly is fixed between the two unloading plates.

[0008] Preferably, the two hydraulic telescopic rods and the detection assembly are both connected to a hydraulic oil pumping device, and the emergency stop controller is connected to a PLC controller via electrical signals.

[0009] Preferably, the correction assembly includes a correction platform fixed between two unloading plates, a movable groove is symmetrically opened at the upper end of the correction platform, a movable bottom plate is elastically connected in the movable groove, a movable roller is rotatably connected to the lower end of the movable bottom plate, a square groove is symmetrically opened at the upper end of the movable bottom plate, an elastic rod is fixed in the square groove, a driving block is fixed at the telescopic end of the elastic rod, and the upper end of the driving block is rotatably connected to the correction block.

[0010] Preferably, the inclined surface of the correction block and the adjacent inclined surface of the limiting plate are in a horizontal state.

[0011] Preferably, the detection component includes a pressure roller rotatably connected between two support blocks, a plurality of open grooves are provided in a circumferential array on the outer surface of the pressure roller, a rubber sleeve is fixed inside the pressure roller, a sealing tube is fixed inside the rubber sleeve, a plurality of rectangular shells are connected to the outer surface of the sealing tube, and the rectangular shells correspond to the positions of the open grooves, a piston plate is airtightly slid inside the rectangular shell, and pressure sensors are fixed to the ends of the plurality of piston plates away from each other.

[0012] Preferably, the pressure sensor and the PLC controller are connected using electrical signals to form a detection loop.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: By rolling the pressure sensor in contact with the plywood, the flatness of the plywood can be detected. When a bulge is detected on the surface of the plywood, the pressure sensor will immediately transmit an electrical signal to the PLC controller. After receiving the electrical signal, the PLC controller quickly controls the hydraulic oil pumping device and the electric telescopic rod to make the pressure roller generate a higher downward pressure. At the same time, the motor repeatedly rotates forward and reverse to drive the pressure roller to repeatedly roll the bulge, thereby repairing the bulge. This automated detection and processing method greatly improves the detection and processing efficiency, reduces manual operation, and thereby improves the overall production efficiency of the device. In addition, according to the detection results of the plywood, qualified and unqualified products can be automatically pushed to different positions. This function not only improves the unloading efficiency and facilitates subsequent operations, but also further improves the subsequent production efficiency.

[0014] When the hydraulic oil in the hydraulic telescopic rod is extracted by the hydraulic pumping device, the hydraulic telescopic rod contracts and drives the clamping plates to move towards each other, thereby moving the plywood closer to the middle; at the same time, the correction block in the correction assembly, pushed by the clamping plate, will contact the plywood and push it to align, thereby achieving angle correction, which not only facilitates subsequent inspection and unloading work, but also enables the plywood to be evenly subjected to the pressure of the device for molding, thereby improving the molding quality of the plywood. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic diagram of the position structure of the clamping and fixing mechanism of the present invention; Figure 3 It is a schematic diagram of the correction component structure of the present invention; Figure 4 for Figure 3 A in the enlarged view; Figure 5 It is a schematic diagram of the structure of the pressurizing and forming mechanism of the present invention; Figure 6 for Figure 5 The enlarged view of point B in the figure; Figure 7 It is a schematic diagram of the structure of the blanking assembly of the present invention; Figure 8 It is a schematic diagram of the internal structure of the detection component of the present invention; Fig. 9 It is a schematic diagram of the internal cross section of the detection component of the present invention.

[0017] Figure numerals: 1, supporting hydraulic base; 2, clamping and fixing mechanism; 3, pressurizing and forming mechanism; 4, PLC controller; 21, unloading plate; 22, rubber stop block; 23, emergency stop controller; 24, hydraulic telescopic rod; 25, clamping plate; 26, limit plate; 27, correction component; 271, correction platform; 272, moving groove; 273, movable bottom plate; 274, movable roller; 275, elastic rod; 276, driving block; 277, correction block; 31, Press down top plate; 32, reciprocating screw; 33, screw sleeve; 35, electric telescopic rod; 36, support block; 37, unloading assembly; 38, detection assembly; 371, limit fixing plate; 372, movable fixing plate; 373, electromagnetic block; 374, permanent magnet block; 375, electric driving frame; 381, pressure roller; 382, ​​open slot; 383, rubber sleeve; 384, sealing tube; 385, rectangular shell; 386, piston plate; 387, pressure sensor. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Example: Refer to Figures 1 to 9A plywood shaping device for a container bottom plate comprises: a supporting hydraulic base 1, a clamping and fixing mechanism 2 is fixed on the upper end of the supporting hydraulic base 1, a PLC controller 4 is fixed on the clamping and fixing mechanism 2, and a pressurizing and forming mechanism 3 is arranged above the clamping and fixing mechanism 2; It should be noted that the plywood to be heated and formed is placed on the clamping and fixing mechanism 2, and the pressure-forming mechanism 3 can be driven to move downward as a whole by supporting the hydraulic base 1. Before pressurization, the components in the clamping and fixing mechanism 2 can bring the plywood placed thereon closer to the middle and correct the angle of the inclined plywood, which is convenient for the convex-concave detection of the end face of the plywood after pressurization, and also convenient for the unloading work after the detection.

[0021] Further explanation, in order to clamp the plywood so that it is close to the middle, the following settings are made, such as Figure 2 As shown, the clamping and fixing mechanism 2 includes two unloading plates 21 fixed to the upper end of the supporting hydraulic base 1, and the ends of the two unloading plates 21 close to each other are fixed with rubber stoppers 22 in an array, and the unloading plates 21 close to the PLC controller 4 are fixed with an emergency stop controller 23, and the emergency stop controller 23 is connected with the PLC controller 4 by electrical signals. The device is started by the emergency stop controller 23 and can be stopped urgently when the device is abnormal during pressurization or detection. A hydraulic telescopic rod 24 is fixed to the middle part of the end of the unloading plates 21 away from each other, and the telescopic ends of the two hydraulic telescopic rods 24 are fixed with clamping plates 25, and the ends of the two clamping plates 25 close to each other are fixed with two symmetrical limit plates 26, and a correction component 27 is fixed between the two unloading plates 21.

[0022] To further explain, in order to correct the angle of the tilted plywood, the following settings are made, such as Figure 3 and Figure 4 As shown, the correction assembly 27 includes a correction platform 271 fixed between the two unloading plates 21, a movable groove 272 is symmetrically opened at the upper end of the correction platform 271, a movable bottom plate 273 is elastically connected in the movable groove 272, a movable roller 274 is rotatably connected at the lower end of the movable bottom plate 273, a square groove is symmetrically opened at the upper end of the movable bottom plate 273, an elastic rod 275 is fixed in the square groove, a driving block 276 is fixed at the telescopic end of the elastic rod 275, a correction block 277 is rotatably connected at the upper end of the driving block 276, and the inclined surface of the correction block 277 is in a horizontal state with the inclined surface of the adjacent limiting plate 26; It should be noted that the plywood that has been coated with glue and stacked is placed on the correction platform 271, and the hydraulic pumping device is started to extract the hydraulic oil in the two hydraulic telescopic rods 24, so that the two hydraulic telescopic rods 24 will shrink and drive the two clamping plates 25 to move in a direction close to each other, and the limit plate 26 will move with the clamping plate 25. When the clamping plate 25 moves to contact the correction block 277, the inclined surfaces therebetween will contact each other and push the two correction blocks 277 on the same side to move in a direction close to each other. After the clamping plate 25 moves for a while, the clamping plate 25 will contact the plywood placed on the correction platform 271. When the clamping plate 25 continues to move, the two correction blocks 277 will contact the plywood and push it to be straightened.

[0023] Further explanation, in order to be able to pressurize the plywood, the following settings are made, such as Figure 5 and Figure 6 As shown, the pressurized forming mechanism 3 includes a lower pressing top plate 31 fixedly supported on the hydraulic base 1, and a rectangular groove is symmetrically opened at the lower end of the lower pressing top plate 31, and a reciprocating screw 32 is rotatably connected in the rectangular groove, and a screw sleeve 33 is sleeved on the surface of the reciprocating screw 32, and an electric telescopic rod 35 is embedded at the lower end of the screw sleeve 33, and a support block 36 is fixed to the telescopic end of the electric telescopic rod 35, and a material discharge assembly 37 is symmetrically fixed at the lower end of the lower pressing top plate 31, and the two material discharge assemblies 37 are connected by belt transmission, and at least one material discharge assembly 37 is driven by a motor, and a detection assembly 38 is rotatably connected between the two support blocks 36, and the two hydraulic telescopic rods 24 and the detection assembly 38 are both connected to the hydraulic oil pumping device; It should be noted that a heating plate is provided in the middle of the lower pressing top plate 31 and the correction platform 271, which can heat the plywood placed on the device during pressurization and shaping.

[0024] Further explanation, in order to promote the purpose of automatic unloading of plywood after inspection, the following settings are made, such as Figure 7 As shown, the blanking assembly 37 includes a limit fixing plate 371 fixed to the lower end of the lower pressing top plate 31, the lower end of the limit fixing plate 371 is elastically connected with a movable fixing plate 372, an electromagnetic block 373 is embedded in the middle of the lower end of the limit fixing plate 371, two electric telescopic rods 35 and the electromagnetic block 373 are connected to the PLC controller 4 by electrical signals, and the electromagnetic block 373 on the side away from the PLC controller 4 is always kept in a powered state, a permanent magnet block 374 is embedded in the middle of the upper end of the movable fixing plate 372, the electromagnetic block 373 and the permanent magnet block 374 are magnetically repelled, and an electric driving frame 375 is provided at the end of the movable fixing plate 372 close to the reciprocating screw rod 32, and the permanent magnet block 374 is located directly below the electromagnetic block 373; Specifically, when no protrusion is detected on the end face of the plywood, the electric push frame 375 on the side that is always powered on will be powered on, so that it pushes the uppermost part to move so that it can fall on the rubber stopper 22 on the side away from the PLC controller 4, thereby achieving the purpose of automatic unloading. If there is still a protrusion on the end face of the plywood after the second detection, the PLC controller 4 will power off the electromagnetic block 373 that is always powered on, and power on the electric push frame 375 on the other side to generate magnetic force. The magnetic poles at one end that are close to each other are opposite, and the permanent magnet block 374 will drive the movable fixed plate 372 and the electric driving frame 375 to move downward under the action of magnetic force, while the movable fixed plate 372 and the electric driving frame 375 on the power-off side will move upward under the action of the elastic connection, which will not affect the electric driving frame 375 on the other side to push the plywood that still has bumps and depressions to move. The plywood with defects on the end surface will be pushed by the electric driving frame 375 until it falls on the rubber stopper 22 on the side close to the PLC controller 4, making it convenient for the staff to take it and repair it.

[0025] Further explanation, in order to repeatedly roll the convexity of the end surface of the plywood, the following settings are made, such as Figure 8 and Fig. 9 As shown, the detection component 38 includes a pressure roller 381 rotatably connected between two support blocks 36, a plurality of open grooves 382 are provided in a circumferential array on the outer surface of the pressure roller 381, a rubber sleeve 383 is fixed inside the pressure roller 381, a sealing tube 384 is fixed inside the rubber sleeve 383, a plurality of rectangular shells 385 are connected to the outer surface of the sealing tube 384, and the rectangular shells 385 correspond to the positions of the open grooves 382, ​​a piston plate 386 is airtightly slid inside the rectangular shell 385, and a pressure sensor 387 is fixed at one end of the plurality of piston plates 386 away from each other, the pressure sensor 387 and the PLC controller 4 are connected by electrical signals to form a detection circuit, when rolling repeatedly, the hydraulic oil in the sealing tube 384 is extracted by the hydraulic oil pumping device, so that the plurality of pressure sensors 387 move toward each other along with the piston plate 386, and the pressure sensor 387 used for detection is retracted into the pressure roller 381, and the pressure sensor 387 will not be subjected to a large pressure during rolling, so that it will not be damaged and affect the normal detection function of the device.

[0026] The working principle of the present invention is as follows: the plywood sheets coated with glue and stacked are placed one by one on the correction platform 271. When the device is in the initial state, under the action of elasticity, the elastic rod 275 therein will drive the two correction blocks 277 located on the same side to move away from each other, so that the plywood sheets placed on the correction platform 271 will be located between the two correction blocks 277. Then, the hydraulic pumping device is started to extract the hydraulic oil in the two hydraulic telescopic rods 24, so that the two hydraulic telescopic rods 24 will shrink and drive the two clamping plates 25 to move towards each other. The limit plate 26 will move with the clamping plate 25. When the clamping plate 25 moves to the contact When the two correction blocks 277 are moved to the correction block 277, the inclined surfaces therebetween will contact each other and push the two correction blocks 277 on the same side to move towards each other. After the clamping plate 25 moves for a while, the clamping plate 25 will contact the plywood placed on the correction platform 271. When the clamping plate 25 continues to move, the two correction blocks 277 will contact the plywood and push it to be straightened (when the worker places the plywood on the correction platform 271, the plywood will be in an inclined state. Although the inclined plywood will not affect the pressurization and molding process of the device, the inclined plywood is not conducive to the subsequent concave-convex detection of the board surface, and it is also impossible to accurately detect the subsequent unloading area); After the clamping plate 25 contacts the plywood, it will push it to move toward the center area of ​​the correction platform 271, and the correction block 277 can drive the movable bottom plate 273 located under the plywood to move during the movement, so that the correction block 277 will not always move in a straight line (the position of the correction block 277 can be adjusted along with the movable bottom plate 273. Since the plywood will be subjected to forces from four sides, if the correction block 277 always keeps moving in one direction, the electric telescopic rod 35 and the correction block 277 will cause scratches to the plywood), and move to the position aligned with the movable groove 272. The movable roller 274 that is in contact with the wall can ensure that the plywood can be evenly subjected to the pressure of the device to be formed (through the push of the electric telescopic rod 35 and the correction block 277, when the device performs pressure forming, the plywood will be located at the center of the correction platform 271, and when the lower pressing top plate 31 presses the plywood downward, the movable bottom plate 273 will support the plywood below the plywood so that the bottom of the plywood will not remain suspended). When the clamping plate 25 and the correction block 277 are moved to a point where they cannot move, the fixing and correction of the plywood are completed, so that the plywood can be better subjected to the pressure of the device; Then the supporting hydraulic base 1 will drive the lower pressing plate 31 to move downward, so that the lower pressing plate 31 presses the plywood located directly below, and then the correction platform 271 and the heating plate arranged on the lower pressing plate 31 will work. The temperature of the hot pressing plate is generally controlled at 130-140°C. Too high a temperature may cause carbonization of the plate surface and aging of the glue layer, and too low a temperature may result in loose bonding. At the same time, a certain pressure is maintained, and the pressure will be adjusted as the temperature changes. Then, the pressure is maintained for molding. If the time is too short, the slab cannot be fully shaped; if the time is too long, the production efficiency will be affected, and inaccurate pressure holding time will make the plywood performance unstable. After the molding work is completed, the clamping limit of the plywood can be released, and the hydraulic oil pumping device is started to move the two electric telescopic rods 35 away from each other and reset; After the forming work is completed, the lower pressing top plate 31 will move upward so that the outer surface of the pressure roller 381 can fit the upper end of the plywood, and then the motor is started to drive the reciprocating screw 32 to rotate, so that the two screw sleeves 33 can drive the pressure roller 381 to roll on the upper end of the plywood through the support block 36. During the rolling process of the pressure roller 381, the pressure sensor 387 therein will continuously contact the end face of the plywood. The pressure sensor 387 can detect the flatness of the end face of the plywood during the rolling process (when encountering a depression or a convexity, the pressure sensor 387 will generate different electrical signals due to the change in pressure on the detection roller, and the PLC controller 4 can receive the change in the electrical signal from The hydraulic oil pumping device and the motor in the device are controlled, and the plate surface protrusions generally caused by glue and the arrangement of the single-piece plate are strip-shaped, and the pressure sensor 387 can be adjusted according to the actual detection situation, so that the pressure sensors 387 with a certain interval can better perform flatness detection). When the protrusion is detected, the pressure sensor 387 will send an electrical signal to the PLC controller 4, and the hydraulic oil pumping device will extract the hydraulic oil in the sealing tube 384 through the PLC controller 4, so that the multiple pressure sensors 387 move towards each other along with the piston plate 386, and the pressure sensor 387 used for detection is put into the pressure roller 381; Then the PLC controller 4 sends a command to the electric telescopic rod 35 to make the support block 36 drive the pressure roller 381 to move downward, and then controls the motor to repeatedly rotate forward and reverse, so that the pressure roller 381 with a certain pressure repeatedly rolls within the raised range (the downward pressure applied by the electric telescopic rod 35 to the pressure roller 381 is determined by the raised degree of the plywood. When the pressure sensor 387 rolls on the end face with a larger raised portion, it will generate a larger current fluctuation than the end face with a smaller raised portion, so that the PLC controller 4 can adjust the power of the electric telescopic rod 35 according to the raised degree detected by the pressure sensor 387), roll the raised portion, and after rolling for a period of time to complete the repair, start the hydraulic pumping device again to inject hydraulic oil into the sealing tube 384, so that the pressure sensor 387 moves out of the pressure roller 381, and start the motor to continue to move in the direction close to the PLC controller 4, and perform concave-convex detection on other parts of the plywood; When no protrusion is detected on the end face of the plywood, the electric driving frame 375 located on the side of the electromagnetic block 373 which is always powered on will be powered on, so that it pushes the plywood located on the uppermost side to move so that it can fall on the rubber stopper 22 on the side away from the PLC controller 4, thereby achieving the purpose of automatic unloading. After the plywood is rolled by the pressure roller 381, the reciprocating screw 32 drives the pressure roller 381 and the pressure sensor 387 to move back and forth. After the protruding part is processed during the first detection process, it will be subjected to a secondary detection. When the end face of the plywood is no longer protruding after the secondary detection, it will also be pushed by the electric driving frame 375 to fall on the rubber stopper 22 on the side away from the PLC controller 4. However, after the secondary detection, there are still concave and convex on the end face of the plywood, and the PLC controller 4 will power off the electromagnetic block 373 which is always powered on. The electric push frame 375 on the other side is energized to generate magnetic force. Since the magnetic poles of the electromagnetic block 373 and the permanent magnet block 374 are opposite to each other at one end, the permanent magnet block 374 will drive the movable fixed plate 372 and the electric push frame 375 to move downward under the action of the magnetic force, while the movable fixed plate 372 and the electric push frame 375 on the power-off side will move upward under the action of the elastic connection, which will not affect the electric push frame 375 on the other side to push the plywood that still has bumps to move. The plywood with defects on the end surface will be pushed by the electric push frame 375 until it falls on the rubber stopper 22 on the side close to the PLC controller 4, which is convenient for the staff to take and repair it. Since the correction block 277 and the drive block 276 are rotatably connected, it will not affect the electric push frame 375 to push the plywood placed in the device.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plywood shaping device for container bottom plate, characterized in that: include: A supporting hydraulic base (1), wherein a clamping and fixing mechanism (2) is fixed to the upper end of the supporting hydraulic base (1), and a PLC controller (4) is fixed to the clamping and fixing mechanism (2); A pressure forming mechanism (3) is arranged above the clamping and fixing mechanism (2), the pressure forming mechanism (3) comprising a downward pressure top plate (31) fixedly supported on a hydraulic base (1), a rectangular groove symmetrically provided at the lower end of the downward pressure top plate (31), a reciprocating screw rod (32) rotatably connected in the rectangular groove, a screw rod sleeve (33) sleeved on the surface of the reciprocating screw rod (32), an electric telescopic rod (35) embedded at the lower end of the screw rod sleeve (33), a support block (36) fixed to the telescopic end of the electric telescopic rod (35), a material discharge assembly (37) symmetrically fixed to the lower end of the downward pressure top plate (31), and a detection assembly (38) rotatably connected between the two support blocks (36); The material removal assembly (37) comprises a limit fixing plate (371) fixed to the lower end of the lower pressure top plate (31); the lower end of the limit fixing plate (371) is elastically connected to a movable fixing plate (372); an electromagnetic block (373) is embedded in the middle of the lower end of the limit fixing plate (371); a permanent magnet block (374) is embedded in the middle of the upper end of the movable fixing plate (372); the electromagnetic block (373) and the permanent magnet block (374) are magnetically repelled from each other; an electric driving frame (375) is provided at one end of the movable fixing plate (372) close to the reciprocating screw rod (32); and the permanent magnet block (374) is located directly below the electromagnetic block (373); The two material removal assemblies (37) are connected by a belt drive, and at least one of the material removal assemblies (37) is driven by a motor.

2. A plywood shaping device for container bottom plate according to claim 1, characterized in that: The two electric telescopic rods (35) and the electromagnetic block (373) are connected to the PLC controller (4) using electrical signals, and the electromagnetic block (373) on the side away from the PLC controller (4) always remains in an energized state.

3. The plywood shaping device for container bottom plate according to claim 1, characterized in that: The clamping and fixing mechanism (2) comprises two unloading plates (21) fixed to the upper end of the supporting hydraulic base (1); rubber stoppers (22) are fixed in an array at the ends of the two unloading plates (21) close to each other; an emergency stop controller (23) is fixed on the unloading plate (21) close to the PLC controller (4); a hydraulic telescopic rod (24) is fixed at the middle of the ends of the unloading plates (21) away from each other; clamping plates (25) are fixed at the telescopic ends of the two hydraulic telescopic rods (24); two symmetrical limit plates (26) are fixed at the ends of the two clamping plates (25) close to each other; and a correction component (27) is fixed between the two unloading plates (21).

4. The plywood shaping device for container bottom plate according to claim 3, characterized in that: The two hydraulic telescopic rods (24) and the detection assembly (38) are both connected to a hydraulic oil pumping device, and the emergency stop controller (23) is connected to a PLC controller (4) via electrical signals.

5. The plywood shaping device for container bottom plate according to claim 3, characterized in that: The correction assembly (27) comprises a correction platform (271) fixed between two unloading plates (21); a movable groove (272) is symmetrically provided at the upper end of the correction platform (271); a movable bottom plate (273) is elastically connected in the movable groove (272); a movable roller (274) is rotatably connected at the lower end of the movable bottom plate (273); a square groove is symmetrically provided at the upper end of the movable bottom plate (273); an elastic rod (275) is fixed in the square groove; a driving block (276) is fixed at the telescopic end of the elastic rod (275); and a correction block (277) is rotatably connected at the upper end of the driving block (276).

6. The plywood shaping device for container bottom plate according to claim 5, characterized in that: The inclined surface of the correction block (277) and the adjacent inclined surface of the limiting plate (26) are in a horizontal state.

7. The plywood shaping device for container bottom plate according to claim 1, characterized in that: The detection assembly (38) comprises a pressure roller (381) rotatably connected between two support blocks (36); a plurality of open grooves (382) are provided in a circumferential array on the outer surface of the pressure roller (381); a rubber sleeve (383) is fixed inside the pressure roller (381); a sealing tube (384) is fixed inside the rubber sleeve (383); a plurality of rectangular shells (385) are connected to the outer surface of the sealing tube (384); the rectangular shells (385) correspond to the positions of the open grooves (382); a piston plate (386) is airtightly slid inside the rectangular shell (385); and a pressure sensor (387) is fixed to each of the ends of the plurality of piston plates (386) that are away from each other.

8. The plywood shaping device for container bottom plate according to claim 7, characterized in that: The pressure sensor (387) and the PLC controller (4) are connected via electrical signals to form a detection circuit.

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