A paper cup die cutting machine

Abstract

The application relates to the technical field of paper cup die cutting, in particular to a paper cup die cutting machine which comprises an operation table, the top end of the operation table is fixedly connected with a mounting plate, the top end of the operation table is fixedly connected with a U-shaped protective cover, and a transmission mechanism is arranged between the U-shaped protective cover and the side wall of the mounting plate. After the extrusion detection ring of the thickness detection assembly contacts raw materials, an electric signal is generated by a pressure sensor and is transmitted to a PLC controller, the PLC controller controls the electrification of an electromagnetic strip and the power-off of an electromagnetic rod, changes the overall resistance value of a resistance plate, meanwhile, the electromagnetic rod drives a first L-shaped electrification plate to move on the first resistance plate, the resistance value of the first resistance plate is fed back according to the thickness of the raw materials and is recorded in the PLC controller, then, a sliding rheostat formed by a second resistance plate and a second L-shaped electrification plate is used to change the power input into a bidirectional liquid pump, the adjustment of the pushing-out speed of a push rod is realized, the die cutting speed dynamically changes, and the difference in the thickness of paper cup raw materials in different batches can be adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper cup die cutting, in particular to a paper cup die cutting machine. BACKGROUND

[0002] The paper cup die cutting machine usually works in the mode of die stamping, the machine drives the die to move up and down through the transmission device, and uses the shape and edge of the die to cut and indent the paper cup raw paper placed on the workbench. In the cutting process, the edge of the die will cut the raw paper according to the preset shape to form the cup body, cup bottom and other parts of the paper cup. For example, the paper cup die cutting machine disclosed in application No. CN202010596443.7 is a die cutting process for the paper cup body.

[0003] The traditional die cutting machine lacks real-time detection and accurate control mechanism for the thickness of the raw material and the die cutting depth. There are differences in the thickness of different batches of paper cup raw materials, and the existing equipment cannot dynamically adjust the die cutting speed according to the thickness of the raw material. When the die cutting knife contacts raw materials of different thicknesses, either the knife is damaged due to excessive initial impact, or the paper is torn and the edge is rough due to unreasonable speed, which seriously affects the quality of the cut and the appearance of the product. At the same time, in the control of the die cutting depth, the fixed parameters are usually preset manually, and cannot be changed in real time according to the actual die cutting situation, which is difficult to meet the diversified needs of different paper cup designs for die cutting depth. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a paper cup die cutting machine, which can effectively solve the problem that the prior art lacks real-time detection and accurate control mechanism for the thickness of the raw material and the die cutting depth, and cannot dynamically adjust the die cutting speed according to the thickness of the raw material.

[0005] To achieve the above purpose, the present application realizes the following technical solutions:

[0006] The present application provides a paper cup die cutting machine, comprising:

[0007] An operating table, a top end of the operating table is fixedly connected with a mounting plate, a top end of the operating table is fixedly connected with a U-shaped protective cover, and a transmission mechanism is arranged between the U-shaped protective cover and the side wall of the mounting plate;

[0008] An adaptive feeding mechanism, the adaptive feeding mechanism comprises a containing box containing raw materials, two opposite side walls of the containing box are provided with a pushing opening, a top end of the operating table is fixedly connected with a supporting plate, a side wall of the supporting plate facing the containing box is fixedly connected with an electric telescopic rod, and a telescopic end of the electric telescopic rod is fixedly connected with a push plate in contact with the pushing opening;

[0009] The adaptive die cutting mechanism comprises an oil cylinder fixedly connected to the inner top wall of a U-shaped protective cover, a push rod airtightly and slidably connected in the oil cylinder, a discharge block fixedly connected to the other end of the push rod, and a die cutting knife fixedly connected to the bottom end of the discharge block.

[0010] Preferably, the adaptive feeding mechanism further comprises a telescopic opening formed in the outer wall of the supporting plate, a baffle slidably connected in the telescopic opening, the other end of the baffle fixedly connected to the top end of the push plate, a blocking groove formed in the inner top wall of the push opening near the die cutting knife, an electromagnetic plate fixedly connected to the inner top wall of the blocking groove, two symmetrically arranged return springs fixedly connected to the bottom end of the inner top wall of the blocking groove, a blocking plate fixedly connected to the other end of the return springs, a permanent magnet plate embedded in the top end of the blocking plate and magnetically attracted to the electromagnetic plate, and a PLC controller electrically connected to the electromagnetic plate and the electric telescopic rod and forming a feeding loop.

[0011] Preferably, the adaptive die cutting mechanism further comprises a hydraulic oil tank fixedly connected to the inner wall of the U-shaped protective cover, a bidirectional liquid pumping pump fixedly connected to the outer wall of the hydraulic oil tank, the liquid pumping end of the bidirectional liquid pumping pump in communication with the inside of the hydraulic oil tank, an outlet tube fixedly connected to the output end of the bidirectional liquid pumping pump, the other end of the outlet tube in communication with the inside of the oil cylinder, and the bidirectional liquid pumping pump and the PLC controller in electrical signal connection and forming a die cutting loop.

[0012] Preferably, the thickness detection assembly comprises a telescopic groove formed in the bottom end of the discharge block, a pressure sensor embedded in the inner top wall of the telescopic groove, a connecting spring fixedly connected to the bottom end of the pressure sensor, and an extrusion detection ring fixedly connected to the other end of the connecting spring.

[0013] The outer wall of the discharge block is fixedly connected with an electromagnetic rod, the outer wall of the electromagnetic rod is fixedly connected with a first L-shaped power supply plate, the outer wall of the containing box is fixedly connected with a first resistance plate in sliding contact with the L-shaped power supply plate, and the first resistance plate and the first L-shaped power supply plate are electrically connected with the PLC controller and form a thickness detection loop.

[0014] Preferably, the real-time depth detection assembly further comprises a conductive sheet arranged by magnetic attraction at the other end of the electromagnetic rod, both ends of the conductive sheet are fixedly provided with magnetic blocks, the outer wall of the containing box is fixedly connected with an electromagnetic strip, the two magnetic blocks are respectively magnetically attracted to the electromagnetic rod and the electromagnetic strip, the outer wall of the containing box is fixedly connected with a second resistance plate, the outer wall of the second resistance plate is in contact with the conductive sheet, the bottom end of the second resistance plate is fixedly connected with an electrified wire, the outer wall of the electromagnetic rod is fixedly connected with a second L-shaped electrified plate, the outer wall of the second L-shaped electrified plate is in sliding contact with the second resistance plate, the second resistance plate, the conductive sheet, the second L-shaped electrified plate and the electrified wire constitute a sliding rheostat, the second resistance plate, the conductive sheet, the second L-shaped electrified plate and the electrified wire are electrically connected with the PLC controller and form a real-time depth detection loop, in the sliding process of the second L-shaped electrified plate on the second resistance plate towards the lower side, the resistance of the sliding rheostat in the first detection loop gradually decreases, and the PLC controller is electrically connected with the electromagnetic rod and the electromagnetic strip and forms an auxiliary loop.

[0015] Preferably, the discharging mechanism comprises a placing groove formed at the top end of the mounting plate, a blower is fixedly connected to the inner wall of the placing groove, and a cutting groove is formed between the blower and the placing groove, the size of the cutting groove is consistent with that of the cutting part of the die cutting knife.

[0016] Preferably, the bottom end of the discharging block is provided with a storage groove with a size consistent with that of the die cutting knife, the outer wall of the discharging block is provided with a discharging port, the inside of the discharging block is provided with a placing cavity, a plurality of blower pumps are fixedly connected to the inside of the placing cavity, a plurality of air outlets are formed in the inner wall of the storage groove, and a conveying pipe is fixedly connected to the discharging port.

[0017] The top end of the mounting plate is fixedly connected with a limiting plate, a limiting groove is formed in the outer wall of the limiting plate, a limiting block is slidably connected to the inner wall of the limiting groove, a driving motor is fixedly connected to the outer wall of the U-shaped protective cover, a threaded rod is fixedly connected to the output end of the driving motor, the threaded rod penetrates through the limiting block, a discharging plate is fixedly connected to the outer wall of the limiting block, and the plurality of blower pumps, the driving motor and the blower are electrically connected with the PLC controller and form a discharging loop.

[0018] Preferably, the bottom end of the operation table is fixedly connected with two symmetrical supporting legs, a collecting groove is fixedly connected between the two supporting legs, a partition plate is fixedly connected in the collecting groove, the collecting groove is divided into a paper sheet groove and a waste groove by the partition plate, a blanking groove is formed in the bottom of the conveying mechanism on the operation table, the waste groove is below the blanking groove, and the other end of the conveying pipe is above the paper sheet groove.

[0019] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects:

[0020] When the extrusion detection ring of the thickness detection assembly contacts the raw material, the pressure sensor generates an electrical signal and transmits it to the PLC controller, which controls the electromagnetic strip to be energized and the electromagnetic rod to be de-energized, changes the overall resistance value of the resistance plate, at the same time, the electromagnetic rod drives the first L-shaped energized plate to move on the first resistance plate, and the raw material thickness is fed back according to the resistance value of the first resistance plate and recorded in the PLC controller, then, the second resistance plate and the second L-shaped energized plate constitute a sliding rheostat to change the power input to the double-way suction pump, so as to adjust the pushing speed of the push rod, achieve dynamic change of the die cutting speed, and dynamically adjust the die cutting speed according to the difference in thickness of different batches of paper cup raw materials.

[0021] And when the second L-shaped energized plate is at a specific position of the second resistance plate, the speed can be further controlled by changing the current direction. The real-time depth detection assembly constitutes a sliding rheostat with the second resistance plate, the conductive sheet, the second L-shaped energized plate and the energized wire, and forms a real-time depth detection loop with the PLC controller. When the second L-shaped energized plate slides on the second resistance plate, the PLC controller obtains the die cutting depth information in real time according to the resistance change, controls the hydraulic oil amount and speed of the double-way suction pump injected into the oil cylinder, and accurately adjusts the die cutting depth, so as to change the die cutting depth in real time according to the actual die cutting situation, meet the diversified needs of different paper cup designs for die cutting depth, and overcome the defects of traditional die cutting machines that cannot be adjusted in real time due to fixed parameters preset by manual operation.

[0022] The paper cup die cutting machine has significant advantages in automatic feeding and discharging and waste recycling. In the automatic feeding process, the self-adaptive feeding mechanism is energized by the PLC controller, the permanent magnet plate is attracted to lift the blocking plate, and the electric telescopic rod is controlled to start, driving the push plate to push the raw material to the die cutting position, thereby achieving automatic feeding. After die cutting is completed, the air blower blows the cut paper cup pieces into the storage tank, and multiple air blowing pumps blow the paper cup pieces through the air outlet, the discharge port and the conveying pipe to the paper piece tank; at the same time, the driving motor drives the threaded rod to rotate, promoting the movement of the limiting block and the discharge plate, pushing the waste paper to the transmission mechanism, and then the waste paper is conveyed to the waste tank by the transmission mechanism. The whole process is controlled by the PLC controller, which greatly improves the production automation degree and production efficiency, and reduces manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0024] Figure 1A schematic view of the internal structure of the present application

[0025] Figure 2 A schematic view of the internal structure of the present application Figure 1

[0026] Figure 3 A schematic view of the internal structure of the present application Figure 2

[0027] Figure 4 A schematic view of the internal structure of the present application Figure 1

[0028] Figure 2 A schematic view of the internal structure of the present application Figure 6

[0029] Figure 5 A schematic view of the internal structure of the present application Figure 7

[0030] Figure 8 A schematic view of the internal structure of the present application

[0031] Figures 1 to 8 A schematic view of the internal structure of the present application

[0032] Label: 1, operation table; 2, mounting plate; 3, U-shaped protective cover; 4, transmission mechanism; 5, self-adaptive feeding mechanism; 51, holding box; 52, pushing port; 53, support plate; 54, electric telescopic rod; 55, push plate; 56, telescopic port; 57, baffle; 58, blocking groove; 59, electromagnetic plate; 510, return spring; 511, blocking plate; 6, self-adaptive die-cutting mechanism; 61, oil cylinder; 62, push rod; 63, discharging block; 64, die-cutting knife; 65, thickness detection assembly; 651, telescopic groove; 652, extrusion detection ring; 653, electromagnetic rod; 654, first L-shaped power supply plate; 655, first resistance plate; 66, real-time depth detection assembly; 661, conductive sheet; 662, electromagnetic strip; 663, second resistance plate; 664, second L-shaped power supply plate; 67, hydraulic oil tank; 68, bidirectional liquid pumping pump; 69, liquid outlet pipe; 7, discharging mechanism; 71, placing groove; 72, blower; 73, cutting groove; 74, storage groove; 75, discharging port; 76, multi-port blowing pump; 77, air outlet; 78, conveying pipe; 79, limiting plate; 710, limiting groove; 711, limiting block; 712, driving motor; 713, threaded rod; 714, blanking groove; 715, discharging plate; 716, support leg; 717, paper sheet groove; 718, waste groove. DETAILED DESCRIPTION

[0033] ​​​​​To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example: Refer to ​ A paper cup die-cutting machine, comprising:

[0036] The top of the control panel 1 is fixedly connected to the mounting plate 2, and the top of the control panel 1 is fixedly connected to the U-shaped protective cover 3. A transmission mechanism 4 is provided between the U-shaped protective cover 3 and the side wall of the mounting plate 2.

[0037] The adaptive feeding mechanism 5 includes a holding box 51 for holding raw materials. Pushing ports 52 are provided on the outer walls of the two opposite sides of the holding box 51. A support plate 53 is fixedly connected to the top of the operating table 1. An electric telescopic rod 54 is fixedly connected to the outer wall of the support plate 53 facing the holding box 51. A push plate 55 that contacts the pushing port 52 is fixedly connected to the telescopic end of the electric telescopic rod 54.

[0038] The adaptive feeding mechanism 5 also includes a telescopic opening 56 on the outer wall of the support plate 53. A baffle 57 is slidably connected inside the telescopic opening 56. The other end of the baffle 57 is fixedly connected to the top of the push plate 55. A blocking groove 58 is provided on the inner top wall of the push port 52 near the die-cutting blade 64. An electromagnetic plate 59 is fixedly connected to the inner top wall of the blocking groove 58. Two symmetrical return springs 510 are fixedly connected to the bottom of the inner top wall of the blocking groove 58. A blocking plate 511 is fixedly connected to the other end of the return spring 510. A permanent magnet plate that is magnetically attracted to the electromagnetic plate 59 is embedded at the top of the blocking plate 511. The electromagnetic plate 59 and the electric telescopic rod 54 are electrically connected to a PLC controller and form a feeding circuit. In the initial state, the blocking plate 511 blocks the push port 52 to prevent the raw material from scattering.

[0039] The adaptive die-cutting mechanism 6 includes a hydraulic cylinder 61 fixedly connected to the top wall inside the U-shaped protective cover 3, a push rod 62 airtightly slidably connected inside the hydraulic cylinder 61, a material discharge block 63 fixedly connected to the other end of the push rod 62, and a die-cutting blade 64 fixedly connected to the bottom end of the material discharge block 63. The adaptive die-cutting mechanism 6 also includes a thickness detection component 65 for detecting the thickness of the raw material and a real-time depth detection component 66 for detecting the die-cutting depth. The amount of hydraulic oil and the injection speed between the injection cylinder 61 and the push rod 62 are adjusted in real time according to the thickness detection component 65 and the real-time depth detection component 66.

[0040] The self-adaptive die-cutting mechanism 6 further comprises a hydraulic oil tank 67 fixedly connected to the inner wall of the U-shaped protective cover 3, the outer wall of the hydraulic oil tank 67 is fixedly connected with a bidirectional liquid pump 68, the liquid pumping end of the bidirectional liquid pump 68 is in communication with the inside of the hydraulic oil tank 67, the output end of the bidirectional liquid pump 68 is fixedly communicated with a liquid outlet pipe 69, the other end of the liquid outlet pipe 69 is in communication with the inside of the oil cylinder 61, the bidirectional liquid pump 68 is electrically connected with the PLC controller and forms a die-cutting loop, the bidirectional liquid pump 68 can adopt a gear pump or a plunger pump, and the injection and withdrawal of the hydraulic oil in the oil cylinder are realized through forward and reverse rotation control, and the internal pressure of the oil cylinder is dynamically adjusted.

[0041] The thickness detection assembly 65 comprises a telescopic groove 651 formed at the bottom end of the discharging block 63, a pressure sensor is embedded in the inner top wall of the telescopic groove 651, the bottom end of the pressure sensor is fixedly connected with a connecting spring, and the other end of the connecting spring is fixedly connected with a extrusion detection ring 652.

[0042] The outer wall of the discharging block 63 is fixedly connected with an electromagnetic rod 653, the outer wall of the electromagnetic rod 653 is fixedly connected with a first L-shaped power supply plate 654, the outer wall of the discharging box 51 is fixedly connected with a first resistance plate 655 in sliding contact with the L-shaped power supply plate, and the first resistance plate 655 and the first L-shaped power supply plate 654 are electrically connected with the PLC controller and form a thickness detection loop.

[0043] The real-time depth detection assembly 66 further comprises a conductive sheet 661 magnetically attracted to the other end of the electromagnetic rod 653, the two ends of the conductive sheet 661 are fixedly provided with magnetic attraction blocks, the outer wall of the discharging box 51 is fixedly connected with an electromagnetic strip 662, the two magnetic attraction blocks are magnetically attracted to the electromagnetic rod 653 and the electromagnetic strip 662 respectively, the outer wall of the discharging box 51 is fixedly connected with a second resistance plate 663, the outer wall of the second resistance plate 663 is in contact with the conductive sheet 661, the bottom end of the second resistance plate 663 is fixedly connected with a power supply wire, the outer wall of the electromagnetic rod 653 is fixedly connected with a second L-shaped power supply plate 664, the outer wall of the second L-shaped power supply plate 664 is in sliding contact with the second resistance plate 663, and the second resistance plate 663, the conductive sheet 661, the second L-shaped power supply plate 664 and the power supply wire constitute a sliding rheostat, the second resistance plate 663, the conductive sheet 661, the second L-shaped power supply plate 664 and the power supply wire are electrically connected with the PLC controller and form a real-time depth detection loop, and in the sliding process of the second L-shaped power supply plate 664 on the second resistance plate 663 towards the downward direction, the resistance of the sliding rheostat in the first detection loop gradually decreases, and the PLC controller is electrically connected with the electromagnetic rod 653 and the electromagnetic strip 662 and forms an auxiliary loop.

[0044] Further comprising a discharging mechanism 7, the discharging mechanism 7 comprises a placing groove 71 opened at the top end of the mounting plate 2, the inner wall of the placing groove 71 is fixedly connected with a blower 72, the blower 72 and the placing groove 71 form a cutting groove 73, the cutting groove 73 is consistent with the cutting position of the die cutting knife 64.

[0045] The bottom end of the discharging block 63 is provided with a storage groove 74 consistent with the die cutting knife 64, the outer wall of the discharging block 63 is provided with a discharging port 75, the inside of the discharging block 63 is provided with a placing cavity, the inside of the placing cavity is fixedly connected with a plurality of blowing pumps 76, the inner wall of the storage groove 74 is provided with a plurality of air outlets 77, the discharging port 75 is fixedly connected with a conveying pipe 78;

[0046] The top end of the mounting plate 2 is fixedly connected with a limiting plate 79, the outer wall of the limiting plate 79 is provided with a limiting groove 710, the inner wall of the limiting groove 710 is slidingly connected with a limiting block 711, the outer wall of the U-shaped protective cover 3 is fixedly connected with a driving motor 712, the output end of the driving motor 712 is fixedly connected with a threaded rod 713, the threaded rod 713 is threaded through the limiting block 711, the outer wall of the limiting block 711 is fixedly connected with a discharging plate 715, the plurality of blowing pumps 76, the driving motor 712 and the blower 72 are electrically connected with the PLC controller and form a discharging loop.

[0047] The bottom end of the operation table 1 is fixedly connected with two symmetrical supporting legs 716, the two supporting legs 716 are fixedly connected with a collecting groove, the collecting groove is fixedly connected with a partition plate, the partition plate divides the collecting groove into a paper sheet groove 717 and a waste material groove 718, the bottom of the transmission mechanism 4 is provided with a blanking groove 714 on the operation table 1, and the waste material groove 718 is below the blanking groove 714, and the other end of the conveying pipe 78 is above the paper sheet groove 717.

[0048] The working principle of the application is as follows:

[0049] Firstly, the paper cup raw material to be processed is placed in the containing box 51, the two opposite outer walls of the containing box 51 are provided with a pushing port 52 for subsequent pushing out of the raw material;

[0050] When feeding is required, the PLC controller energizes the electromagnetic plate 59, causing it to attract the permanent magnet plate, which in turn lifts the permanent magnet plate upwards, allowing the material to be pushed forward. The electric telescopic rod 54 on the support plate 53 is activated under the control of the PLC controller. The telescopic end of the electric telescopic rod 54 is fixedly connected to the push plate 55, which moves towards the feeding port 52. During the movement of the push plate 55, the baffle 57, which is fixedly connected to the top of the push plate 55, slides synchronously within the telescopic port 56 opened on the outer wall of the support plate 53, serving as an auxiliary guide and preventing the material from deviating, and preventing the material above from falling automatically. When the push plate 55 pushes the material to the die-cutting position, the push plate 55 and the limit plate 79 correct the position of the material to further prevent the material from loosening. The above describes the timing and sequence of the actions of the electric telescopic rod 54 and the electromagnetic plate 59 controlled by the PLC controller according to a preset program, ensuring the accuracy and efficiency of the feeding process.

[0051] After the raw material is conveyed to the die-cutting position, the PLC controller starts the bidirectional pump 68, which smoothly injects hydraulic oil from the hydraulic tank 67 into the cylinder 61, thus pushing the push rod 62 downward. The discharge block 63 moves downward under the push of the push rod 62. As the discharge block 63 descends, the extrusion detection ring 652 first contacts the raw material, thereby squeezing the pressure sensor and causing the pressure sensor to generate an electrical signal change. This electrical signal is then transmitted to the PLC controller, which controls the electromagnetic strip 652. When 62 is energized and the electromagnetic rod 653 is de-energized, the electromagnetic strip 662 attracts the conductive sheet 661, thereby changing the overall length of the resistance plate and thus its overall resistance value. At this time, the electromagnetic rod 653 drives the first L-shaped energized plate 654 to move on the first resistance plate 655, thereby changing the resistance value of the first resistance plate 655. Then, the thickness of the raw material is fed back based on the resistance value of the first resistance plate 655 and recorded in the PLC controller. Then, the die-cutting speed needs to be automatically adjusted according to the real-time die-cutting thickness for the following reasons:

[0052] When the die-cutting blade 64 first contacts the paper, a slower speed is needed to reduce the initial impact on the die-cutting blade 64 and protect the blade. As the die-cutting blade 64 cuts into the paper, the paper resistance stabilizes. Appropriately increasing the speed can improve production efficiency and maintain the continuity of the die-cutting process, making the cut surface more uniform and flat. When the die-cutting blade 64 is close to cutting through the paper, the remaining part of the paper is thin and has low strength. Therefore, a slower cutting speed is required to prevent the paper from tearing and producing burrs to ensure the quality of the cut. It can also prevent the die-cutting blade 64 from cutting too much into the cutting groove 73.

[0053] Therefore, by recording the thickness of the raw material, the second resistance plate 663 can be symmetrically divided into two parts. During the sliding process of the second L-shaped power supply plate 664 towards the bottom on the second resistance plate 663, the resistance of the second resistance plate 663 will gradually decrease, thereby increasing the power input to the bidirectional suction pump 68, and further increasing the speed of the push rod 62, thereby increasing the die cutting speed. When the second resistance plate 663 moves to the center of the partition, it will be detected by the current detector in the PLC controller, thereby changing the power supply lines and the conduction direction of the two ends of the second resistance plate 663 (making the conduction directions of the two opposite).

[0054] If the resistance of the second L-shaped power supply plate 664 changes when it moves on the second resistance plate 663, it is related to the direction of the current. When the second L-shaped power supply plate 664 moves on the second resistance plate 663 and the resistance decreases in the original current direction, it may be due to the gradual increase of the effective cross-sectional area of the conduction path in this direction, which leads to the increase of the resistance. When the conduction direction changes, the microstructure or conduction mechanism inside the material may change, which reduces the effective cross-sectional area of the conduction path, thereby increasing the resistance and further reducing the die cutting speed.

[0055] When the die cutting is completed, the discharge block 63 rises, the blower 72 in the placing groove 71 at the top end of the mounting plate 2 is started, thereby blowing the cut paper cup pieces into the storage groove 74, and then starting the multi-port blowing pump 76 to blow air flow through the multiple air outlets 77 on the inner wall of the storage groove 74, blow the paper cup pieces from the storage groove 74 into the discharge port 75, and then through the conveying pipe 78 to the paper piece groove 717.

[0056] At the same time, the driving motor 712 outside the U-shaped protective cover is started, the threaded rod 713 at the output end of the driving motor 712 rotates, drives the limiting block 711 threaded through the threaded rod 713 to slide in the limiting groove 710 on the outer wall of the limiting plate 79, and the discharge plate 715 fixedly connected to the outer wall of the limiting block 711 moves, thereby pushing the waste paper to the transmission mechanism 4, and then transmitting the waste paper to the waste groove 718 through the transmission mechanism 4 for waste recycling.

[0057] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A paper cup die cutting machine characterized by, Include: Operation platform (1), the top of the operation platform (1) is fixedly connected with a mounting plate (2), the top of the operation platform (1) is fixedly connected with a U-shaped protective cover (3), the U-shaped protective cover (3) is provided with a transmission mechanism (4) between the side wall and the mounting plate (2); Self-adaptive feeding mechanism (5), the self-adaptive feeding mechanism (5) includes a containing box (51) containing raw materials, the two opposite side walls of the containing box (51) are provided with a pushing opening (52), the top of the operation platform (1) is fixedly connected with a supporting plate (53), the side wall of the supporting plate (53) is fixedly connected with an electric telescopic rod (54) towards the containing box (51), the telescopic end of the electric telescopic rod (54) is fixedly connected with a push plate (55) in contact with the pushing opening (52); Self-adaptive die cutting mechanism (6), the self-adaptive die cutting mechanism (6) includes an oil cylinder (61) fixedly connected to the inner top wall of the U-shaped protective cover (3), the oil cylinder (61) is in airtight sliding connection with a push rod (62), the other end of the push rod (62) is fixedly connected with a discharging block (63), the bottom end of the discharging block (63) is fixedly connected with a die cutter (64), the self-adaptive die cutting mechanism (6) further includes a thickness detection assembly (65) for detecting the thickness of the raw material, a real-time depth detection assembly (66) for detecting the die cutting depth, the hydraulic oil quantity and the injection speed between the oil cylinder (61) and the push rod (62) are controlled in real time according to the thickness detection assembly (65) and the real-time depth detection assembly (66); The thickness detection assembly (65) includes a telescopic slot (651) formed in the bottom end of the discharging block (63), the inner top wall of the telescopic slot (651) is embedded with a pressure sensor, the bottom end of the pressure sensor is fixedly connected with a connecting spring, the other end of the connecting spring is fixedly connected with a extrusion detection ring (652); The outer wall of the discharging block (63) is fixedly connected with an electromagnetic rod (653), the outer wall of the electromagnetic rod (653) is fixedly connected with a first L-shaped power supply plate (654), the outer wall of the containing box (51) is fixedly connected with a first resistance plate (655) in sliding contact with the L-shaped power supply plate, the first resistance plate (655) and the first L-shaped power supply plate (654) are electrically connected with the PLC controller and form a thickness detection loop; The real-time depth detection assembly (66) further comprises a conductive sheet (661) arranged by magnetic attraction at the other end of the electromagnetic rod (653), both ends of the conductive sheet (661) are fixedly provided with magnetic attraction blocks, the outer wall of the containing box (51) is fixedly connected with an electromagnetic strip (662), the two magnetic attraction blocks are respectively magnetically attracted to the electromagnetic rod (653) and the electromagnetic strip (662), the outer wall of the containing box (51) is fixedly connected with a second resistance plate (663), the outer wall of the second resistance plate (663) is in contact with the conductive sheet (661), the bottom end of the second resistance plate (663) is fixedly connected with an electrification wire, the outer wall of the electromagnetic rod (653) is fixedly connected with a second L-shaped electrification plate (664), the outer wall of the second L-shaped electrification plate (664) is in sliding contact with the second resistance plate (663), the second resistance plate (663), the conductive sheet (661), the second L-shaped electrification plate (664) and the electrification wire constitute a sliding rheostat, the second resistance plate (663), the conductive sheet (661), the second L-shaped electrification plate (664) and the electrification wire are electrically connected with the PLC controller and form a real-time depth detection loop, in the sliding process of the second L-shaped electrification plate (664) on the second resistance plate (663) towards the lower side, the resistance of the sliding rheostat in the first detection loop gradually decreases, and the PLC controller is electrically connected with the electromagnetic rod (653) and the electromagnetic strip (662) and forms an auxiliary loop.

2. A paper cup die cutting machine according to claim 1, characterized in that, The self-adaptive feeding mechanism (5) further comprises a telescopic opening (56) formed in the outer wall of the supporting plate (53), a baffle (57) is slidably connected in the telescopic opening (56), one end of the baffle (57) is fixedly connected with the top end of the push plate (55), a blocking groove (58) is formed in the inner top wall of the push opening (52) on the side close to the die cutter (64), an electromagnetic plate (59) is fixedly connected to the inner top wall of the blocking groove (58), the bottom end of the inner top wall of the blocking groove (58) is fixedly connected with two symmetric reset springs (510), the other end of the reset spring (510) is fixedly connected with a blocking plate (511), a permanent magnet plate magnetically attracted to the electromagnetic plate (59) is embedded in the top end of the blocking plate (511), and the electromagnetic plate (59) and the electric telescopic rod (54) are electrically connected with a PLC controller and form a feeding loop.

3. A paper cup die cutting machine according to claim 2, characterized in that The self-adaptive die cutting mechanism (6) further comprises a hydraulic oil tank (67) fixedly connected to the inner wall of the U-shaped protective cover (3), a bidirectional liquid pump (68) is fixedly connected to the outer wall of the hydraulic oil tank (67), the liquid suction end of the bidirectional liquid pump (68) is in communication with the inside of the hydraulic oil tank (67), the output end of the bidirectional liquid pump (68) is fixedly connected with a liquid outlet pipe (69), the other end of the liquid outlet pipe (69) is in communication with the inside of the oil cylinder (61), and the bidirectional liquid pump (68) is electrically connected with the PLC controller and forms a die cutting loop.

4. A paper cup die cutting machine according to claim 3, characterized in that Also include the discharge mechanism (7), the discharge mechanism (7) includes the placement slot (71) opened at the top end of the mounting plate (2), the inner wall of the placement slot (71) is fixedly connected with the blower (72), the blower (72) and the placement slot (71) form the cutting slot (73), the cutting slot (73) and the cutting of the die cutting knife (64) are consistent in size.

5. A paper cup die cutting machine according to claim 4, wherein The bottom end of the discharge block (63) is provided with a storage slot (74) consistent in size with the die cutting knife (64), the outer wall of the discharge block (63) is provided with a discharge port (75), the inside of the discharge block (63) is provided with a placement cavity, the inside of the placement cavity is fixedly connected with a plurality of blowing pumps (76), the inner wall of the storage slot (74) is provided with a plurality of air outlets (77), the discharge port (75) is fixedly connected with a conveying pipe (78); The top end of the mounting plate (2) is fixedly connected with a limiting plate (79), the outer wall of the limiting plate (79) is provided with a limiting slot (710), the inner wall of the limiting slot (710) is slidably connected with a limiting block (711), the outer wall of the U-shaped protective cover (3) is fixedly connected with a driving motor (712), the output end of the driving motor (712) is fixedly connected with a threaded rod (713), the threaded rod (713) is threaded through the limiting block (711), the outer wall of the limiting block (711) is fixedly connected with a discharge plate (715), the plurality of blowing pumps (76), the driving motor (712), the blower (72) and the PLC controller are electrically connected and form a discharge circuit.

6. A paper cup die cutting machine according to claim 5, wherein The bottom end of the operation table (1) is fixedly connected with two symmetrical supporting legs (716), two supporting legs (716) are fixedly connected with a collecting groove, the collecting groove is fixedly connected with a partition plate, the partition plate divides the collecting groove into a paper sheet groove (717) and a waste groove (718), the bottom of the transmission mechanism (4) is provided with a blanking groove (714) on the operation table (1), and the waste groove (718) is below the blanking groove (714), the other end of the conveying pipe (78) is above the paper sheet groove (717).

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