Paper cup die-cutting machine

Abstract

The invention relates to the technical field of paper cup die cutting, in particular to a paper cup die cutting machine which comprises an operation table, a mounting plate is fixedly connected to the top end of the operation table, a U-shaped protection cover is fixedly connected to the top end of the operation table, and a conveying mechanism is arranged between the U-shaped protection cover and the side wall of the mounting plate. After an extrusion detection ring of the thickness detection assembly makes contact with raw materials, a pressure sensor generates an electric signal and transmits the electric signal to a PLC, the PLC controls an electromagnetic strip to be powered on, an electromagnetic rod to be powered off and changes the overall resistance value of a resistance plate, and meanwhile the electromagnetic rod drives a first L-shaped power-on plate to move on a first resistance plate; the thickness of the raw material is fed back according to the resistance value of the first resistance plate and recorded in the PLC, then the power introduced into the two-way infusion pump is changed through a slide rheostat composed of the second resistance plate and the second L-shaped electrifying plate, the push-out speed of the push rod is adjusted, the dynamic change of the die cutting speed is achieved, and the die cutting efficiency is improved. And the thickness difference of different batches of paper cup raw materials can be determined.

Description

Technical Field

[0001] The present invention relates to the technical field of paper cup die-cutting, and particularly relates to a paper cup die-cutting machine. Background Art

[0002] Paper cup die-cutting machines usually work by means of die stamping. The machine drives the die to move up and down through a transmission device, and uses the shape and cutting edge of the die to cut and indent the original paper of the paper cup placed on the workbench. During the cutting process, the cutting edge of the die will precisely cut the original paper according to the preset shape to form components such as the body and bottom of the paper cup. For example, a paper cup die-cutting machine disclosed in the application number CN202010596443.7 is used to perform die-cutting on the body of the paper cup.

[0003] Traditional die-cutting machines lack a real-time detection and precise control mechanism for the thickness of raw materials and die-cutting depth. There are differences in the thickness of raw materials for paper cups in different batches, and existing equipment cannot dynamically adjust the die-cutting speed according to the thickness of raw materials. When the die-cutting knife contacts raw materials of different thicknesses, either the tool will be damaged due to excessive initial impact, or the paper will be torn and burrs will be generated due to unreasonable speed, seriously affecting the incision quality and product appearance. At the same time, in terms of die-cutting depth control, most are manually preset fixed parameters and cannot be changed in real time according to the actual die-cutting situation, making it difficult to meet the diverse requirements for die-cutting depth in different paper cup designs. Summary of the Invention

[0004] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a paper cup die-cutting machine, which can effectively solve the problem that the prior art lacks a real-time detection and precise control mechanism for the thickness of raw materials and die-cutting depth and cannot dynamically adjust the die-cutting speed according to the thickness of raw materials.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: The present invention provides a paper cup die-cutting machine, including: An operating table, the top of the operating table is fixedly connected with a mounting plate, the top 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; An adaptive feeding mechanism, the adaptive feeding mechanism includes a feeding box for containing raw materials, two opposite outer walls of the feeding box are provided with feeding ports, the top of the operating table is fixedly connected with a support plate, one side outer wall of the support plate facing the feeding box is fixedly connected with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected with a pushing plate that contacts the feeding port; Adaptive die-cutting mechanism. The adaptive die-cutting mechanism includes an oil cylinder fixedly connected to the inner top wall of a U-shaped protective cover. A push rod is hermetically and slidably connected inside the oil cylinder. The other end of the push rod is fixedly connected to a discharge block. A die-cutting knife is fixedly connected to the bottom end of the discharge block. The adaptive die-cutting mechanism further includes a thickness detection component for detecting the thickness of the raw material and a real-time depth detection component for detecting the die-cutting depth. The hydraulic oil volume and injection speed between the injection oil cylinder and the push rod are adjusted in real time according to the thickness detection component and the real-time depth detection component.

[0006] Preferably, the adaptive feeding mechanism further includes a telescopic opening formed on the outer wall of the support plate. A baffle is slidably connected inside the telescopic opening. The other end of the baffle is fixedly connected to the top end of the push plate. A blocking groove is formed on the inner top wall of the feeding port near the die-cutting knife. An electromagnetic plate is fixedly connected to the inner top wall of the blocking groove. Two symmetrically arranged return springs are fixedly connected to the bottom end of the inner top wall of the blocking groove. The other end of the return spring is fixedly connected to a blocking plate. A permanent magnet plate magnetically attracted to the electromagnetic plate is embedded in the top end of the blocking plate. The electromagnetic plate and the electric telescopic rod are electrically connected to a PLC controller to form a feeding circuit.

[0007] Preferably, the adaptive die-cutting mechanism further includes a hydraulic oil tank fixedly connected to the inner wall of the U-shaped protective cover. A two-way liquid pumping pump is fixedly connected to the outer wall of the hydraulic oil tank. The liquid pumping end of the two-way liquid pumping pump is communicated with the inside of the hydraulic oil tank. The output end of the two-way liquid pumping pump is fixedly communicated with a liquid outlet pipe. The other end of the liquid outlet pipe is communicated with the inside of the oil cylinder. The two-way liquid pumping pump is electrically connected to the PLC controller to form a die-cutting circuit.

[0008] Preferably, the thickness detection component includes a telescopic groove formed at the bottom end of the discharge block. A pressure sensor is embedded in the inner top wall of the telescopic groove. A connecting spring is fixedly connected to the bottom end of the pressure sensor. The other end of the connecting spring is fixedly connected to a pressing detection ring. An electromagnetic rod is fixedly connected to the outer wall of the discharge block. A first L-shaped energized plate is fixedly connected to the outer wall of the electromagnetic rod. A first resistance plate in sliding contact with the L-shaped energized plate is fixedly connected to the outer wall of the storage box. The first resistance plate, the first L-shaped energized plate and the PLC controller are electrically connected to form a thickness detection circuit.

[0009] Preferably, the real-time depth detection component further includes a conductive sheet magnetically attached to the other end of the electromagnetic rod. Both ends of the conductive sheet are fixedly provided with magnetic attraction blocks. An electromagnetic strip is fixedly connected to the outer wall of the storage box. The two magnetic attraction blocks are magnetically attracted to the electromagnetic rod and the electromagnetic strip respectively. A second resistor plate is fixedly connected to the outer wall of the storage box. The outer wall of the second resistor plate is in contact with the conductive sheet. A live wire is fixedly connected to the bottom end of the second resistor plate. A second L-shaped live wire plate is fixedly connected to the outer wall of the electromagnetic rod. The outer wall of the second L-shaped live wire plate is in sliding contact with the second resistor plate. The second resistor plate, the conductive sheet, the second L-shaped live wire plate, and the live wire form a sliding rheostat. The second resistor plate, the conductive sheet, the second L-shaped live wire plate, and the live wire are electrically connected to the PLC controller and form a real-time depth detection circuit. During the downward sliding process of the second L-shaped live wire plate on the second resistor plate, the resistance of the sliding rheostat in the first detection circuit gradually decreases. The PLC controller is electrically connected to the electromagnetic rod and the electromagnetic strip and forms an auxiliary circuit.

[0010] Preferably, it further includes a discharging mechanism. The discharging mechanism includes a placement groove opened at the top end of the mounting plate. A blower is fixedly connected to the inner wall of the placement groove. A cutting groove is formed between the blower and the placement groove. The cutting groove is the same size as the cutting part of the die-cutting knife.

[0011] Preferably, a storage groove the same size as the die-cutting knife is opened at the bottom end of the discharging block. A discharge port is opened on the outer wall of the discharging block. A placement cavity is opened inside the discharging block. A multi-port blowing pump is fixedly connected to the inside of the placement cavity. A plurality of air outlets are opened on the inner wall of the storage groove. A conveying pipe is fixedly communicated at the discharge port; A limiting plate is fixedly connected to the top end of the mounting plate. A limiting groove is opened on 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. The output end of the driving motor is fixedly connected to a threaded rod. The threaded rod threadedly penetrates through the limiting block. A discharging plate is fixedly connected to the outer wall of the limiting block. The multi-port blowing pump, the driving motor, and the blower are electrically connected to the PLC controller by electrical signals and form a discharging circuit.

[0012] Preferably, two symmetrically arranged support legs are fixedly connected to the bottom end of the operating table. A collecting groove is fixedly connected between the two support legs. A partition plate is fixedly connected inside the collecting groove. The partition plate divides the collecting groove into a paper sheet groove and a waste material groove. A blanking groove is opened on the operating table at the bottom of the transmission mechanism, and the waste material groove is located below the blanking groove. The other end of the conveying pipe is located above the paper sheet groove.

[0013] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art: After the extrusion detection ring of the thickness detection component contacts the raw material, the pressure sensor generates an electrical signal and transmits it to the PLC controller. The PLC controller controls the electromagnet bar to be energized and the electromagnetic rod to be de-energized, changing 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 thickness of the raw material is fed back according to the resistance value of the first resistance plate and recorded in the PLC controller. Then, using the sliding rheostat composed of the second resistance plate and the second L-shaped energized plate, the power supplied to the two-way liquid extraction pump is changed to adjust the pushing speed of the push rod, realizing the dynamic change of the die-cutting speed. It can dynamically adjust the die-cutting speed according to the differences in the thickness of paper cup raw materials in different batches.

[0014] And when the second L-shaped energized plate is at a specific position on the second resistance plate, the speed can be further controlled by changing the current direction. The real-time depth detection component forms a sliding rheostat through the second resistance plate, the conductive sheet, the second L-shaped energized plate and the live wire, and forms a real-time depth detection circuit 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, and accurately controls the die-cutting depth by controlling the hydraulic oil volume and speed injected into the oil cylinder by the two-way liquid extraction pump, so as to achieve the real-time change of the die-cutting depth according to the actual die-cutting situation and meet the diverse requirements of different paper cup designs for the die-cutting depth, overcoming the defect that traditional die-cutting machines mostly preset fixed parameters manually and cannot be adjusted in real time.

[0015] This paper cup die-cutting machine has significant advantages in terms of automatic feeding, discharging and waste recycling. In the automatic feeding link, the adaptive feeding mechanism energizes the electromagnetic plate with the help of the PLC controller, adsorbs the permanent magnet plate to lift the blocking plate, and at the same time controls the electric telescopic rod to start, driving the push plate to push the raw material to the die-cutting position, thus achieving the effect of automatic feeding. In terms of automatic discharging and waste recycling, after die-cutting, the blower blows the cut paper cup pieces into the storage tank, and the multi-port blowing pump sends the paper cup pieces through the air outlet, the discharge port and the conveying pipe to the paper sheet tank; at the same time, the driving motor drives the threaded rod to rotate, prompting the limit block and the discharge plate to move, pushing the waste paper to the transmission mechanism, and then the transmission mechanism conveys the waste paper to the waste tank. The whole process is uniformly controlled by the PLC controller, greatly improving the production automation degree and production efficiency and reducing manual operation. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 Schematic diagram of the internal three-dimensional structure of the present invention Figure 1 ; Figure 3 Schematic diagram of the internal three-dimensional structure of the present invention Figure 2 ; Figure 4 Schematic diagram of a partial three-dimensional structure of the present invention Figure 1 ; Figure 5 Schematic diagram of a partial three-dimensional structure of the present invention Figure 2 ; Figure 6 For the present invention Figure 5 Schematic diagram of the three-dimensional structure of part A in; Figure 7 Schematic diagram of the sectional three-dimensional structure of the storage box of the present invention; Figure 8 Schematic diagram of the three-dimensional structure of the collection tank of the present invention.

[0018] Reference numerals: 1, operating table; 2, mounting plate; 3, U-shaped protective cover; 4, transmission mechanism; 5, adaptive feeding mechanism; 51, storage box; 52, feeding 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, adaptive die-cutting mechanism; 61, oil cylinder; 62, push rod; 63, discharge block; 64, die-cutting knife; 65, thickness detection component; 651, telescopic groove; 652, extrusion detection ring; 653, electromagnetic rod; 654, first L-shaped energized plate; 655, first resistance plate; 66, real-time depth detection component; 661, conductive sheet; 662, electromagnetic strip; 663, second resistance plate; 664, second L-shaped energized plate; 67, hydraulic oil tank; 68, two-way liquid pumping pump; 69, liquid outlet pipe; 7, discharging mechanism; 71, placement groove; 72, blower; 73, cutting groove; 74, storage groove; 75, discharge 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, discharge plate; 716, support leg; 717, paper sheet groove; 718, waste material groove. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] The following further describes the present invention with reference to embodiments.

[0021] Embodiment: Refer to Figures 1 to 8 , a paper cup die-cutting machine, comprising: An operating table 1, a mounting plate 2 is fixedly connected to the top end of the operating table 1, a U-shaped protective cover 3 is fixedly connected to the top end of the operating table 1, and a transmission mechanism 4 is arranged between the U-shaped protective cover 3 and the side wall of the mounting plate 2; An adaptive feeding mechanism 5, the adaptive feeding mechanism 5 includes a feeding box 51 for containing raw materials, pushing ports 52 are opened on the outer walls of two opposite sides of the feeding box 51, a support plate 53 is fixedly connected to the top end of the operating table 1, an electric telescopic rod 54 is fixedly connected to the outer wall of the support plate 53 facing the feeding box 51, and a push plate 55 in contact with the pushing port 52 is fixedly connected to the telescopic end of the electric telescopic rod 54; The adaptive feeding mechanism 5 further includes a telescopic opening 56 opened on the outer wall of the support plate 53, a baffle 57 is slidably connected in the telescopic opening 56, the other end of the baffle 57 is fixedly connected to the top end of the push plate 55, a blocking groove 58 is opened on the inner top wall of the pushing port 52 close to the die-cutting knife 64, an electromagnetic plate 59 is fixedly connected to the inner top wall of the blocking groove 58, two symmetrically arranged reset springs 510 are fixedly connected to the bottom end of the inner top wall of the blocking groove 58, the other end of the reset spring 510 is fixedly connected to a blocking plate 511, a permanent magnet plate magnetically attracted to the electromagnetic plate 59 is embedded at the top end of the blocking plate 511, the electromagnetic plate 59 and the electric telescopic rod 54 are electrically connected to a PLC controller to form a feeding circuit, and the blocking plate 511 blocks the pushing port 52 in the initial state to prevent the raw materials from scattering.

[0022] An adaptive die-cutting mechanism 6, the adaptive die-cutting mechanism 6 includes an oil cylinder 61 fixedly connected to the inner top wall of the U-shaped protective cover 3, a push rod 62 is hermetically slidably connected in the oil cylinder 61, the other end of the push rod 62 is fixedly connected to a discharge block 63, a die-cutting knife 64 is fixedly connected to the bottom end of the discharge block 63, the adaptive die-cutting mechanism 6 further includes a thickness detection component 65 for detecting the thickness of the raw materials and a real-time depth detection component 66 for detecting the die-cutting depth, and the hydraulic oil volume and injection speed injected between the oil cylinder 61 and the push rod 62 are regulated in real time according to the thickness detection component 65 and the real-time depth detection component 66.

[0023] The adaptive die-cutting mechanism 6 further includes 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 two-way liquid extraction pump 68. The liquid extraction end of the two-way liquid extraction pump 68 is communicated with the inside of the hydraulic oil tank 67. The output end of the two-way liquid extraction pump 68 is fixedly communicated with a liquid outlet pipe 69. The other end of the liquid outlet pipe 69 is communicated with the inside of the oil cylinder 61. The two-way liquid extraction pump 68 is electrically connected to the PLC controller to form a die-cutting circuit. The two-way liquid extraction pump 68 can adopt a gear pump or a plunger pump, and realizes the injection and extraction of hydraulic oil in the oil cylinder through positive and reverse rotation control, and dynamically adjusts the internal pressure of the oil cylinder.

[0024] The thickness detection component 65 includes a telescopic groove 651 opened at the bottom end of the discharge 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 pressing detection ring 652; The outer wall of the discharge 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 energized plate 654. The outer wall of the storage box 51 is fixedly connected with a first resistance plate 655 that slidably contacts the L-shaped energized plate. The first resistance plate 655, the first L-shaped energized plate 654 and the PLC controller are electrically connected to form a thickness detection circuit.

[0025] The real-time depth detection component 66 further includes a conductive sheet 661 magnetically attracted to the other end of the electromagnetic rod 653. Magnetic attraction blocks are fixedly arranged at both ends of the conductive sheet 661. The outer wall of the storage 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 storage 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 conducting wire. The outer wall of the electromagnetic rod 653 is fixedly connected with a second L-shaped energized plate 664. The outer wall of the second L-shaped energized plate 664 slidably contacts the second resistance plate 663. The second resistance plate 663, the conductive sheet 661, the second L-shaped energized plate 664 and the conducting wire constitute a sliding rheostat. The second resistance plate 663, the conductive sheet 661, the second L-shaped energized plate 664 and the conducting wire are electrically connected to the PLC controller to form a real-time depth detection circuit. During the downward sliding process of the second L-shaped energized plate 664 on the second resistance plate 663, the resistance of the sliding rheostat in the first detection circuit gradually decreases. The PLC controller is electrically connected to the electromagnetic rod 653 and the electromagnetic strip 662 to form an auxiliary circuit.

[0026] It further includes a discharging mechanism 7. The discharging mechanism 7 includes a placement groove 71 opened at the top end of the mounting plate 2. A blower 72 is fixedly connected to the inner wall of the placement groove 71. A cutting groove 73 is formed between the blower 72 and the placement groove 71. The cutting groove 73 has the same size as the cutting part of the die-cutting knife 64.

[0027] A storage groove 74 with the same size as the die-cutting knife 64 is provided at the bottom end of the discharging block 63. A discharging port 75 is provided on the outer wall of the discharging block 63. A placement cavity is provided inside the discharging block 63. A multi-port blowing pump 76 is fixedly connected inside the placement cavity. A plurality of air outlets 77 are provided on the inner wall of the storage groove 74. A conveying pipe 78 is fixedly communicated at the discharging port 75; A limiting plate 79 is fixedly connected to the top end of the mounting plate 2. A limiting groove 710 is provided on the outer wall of the limiting plate 79. A limiting block 711 is slidably connected to the inner wall of the limiting groove 710. A driving motor 712 is fixedly connected to the outer wall of the U-shaped protective cover 3. An output end of the driving motor 712 is fixedly connected to a threaded rod 713. The thread of the threaded rod 713 penetrates through the limiting block 711. A discharging plate 715 is fixedly connected to the outer wall of the limiting block 711. The multi-port blowing pump 76, the driving motor 712, and the blower 72 are electrically connected to the PLC controller and form a discharging circuit.

[0028] Two symmetrically arranged support legs 716 are fixedly connected to the bottom end of the operating table 1. A collecting groove is fixedly connected between the two support legs 716. A partition plate is fixedly connected inside the collecting groove. The partition plate divides the collecting groove into a paper sheet groove 717 and a waste material groove 718. A blanking groove 714 is provided on the operating table 1 at the bottom of the transmission mechanism 4, and the waste material groove 718 is located below the blanking groove 714. The other end of the conveying pipe 78 is located above the paper sheet groove 717.

[0029] The working principle of the present invention is as follows: First, place the paper cup raw materials to be processed in the storage box 51. Pushing ports 52 are provided on two opposite outer walls of the storage box 51 for pushing out the subsequent raw materials; When the feeding operation needs to be performed, the electromagnetic plate 59 is energized through the PLC controller, so that the electromagnetic plate 59 adsorbs the permanent magnet plate, and then the permanent magnet plate is lifted upward, so that the raw materials can be pushed forward. The electric telescopic rod 54 on the support plate 53 is started under the control of the PLC controller. A push plate 55 is fixedly connected to the telescopic end of the electric telescopic rod 54. The push plate 55 will move towards the pushing port 52. During the movement of the push plate 55, a baffle 57 fixedly connected to the top end of the push plate 55 will slide synchronously in the telescopic opening 56 provided on the outer wall of the support plate 53, playing a role in auxiliary guiding and preventing the raw materials from shifting, and preventing the raw materials above from automatically falling. When the push plate 55 pushes the raw materials to the die-cutting position, the push plate 55 and the limiting plate 79 correct the position of the raw materials to further prevent the raw materials from loosening. The above is that the PLC controller controls the action timing and sequence of the electric telescopic rod 54 and the electromagnetic plate 59 according to the preset program to ensure the accuracy and efficiency of the feeding process.

[0030] After the raw material is conveyed to the die-cutting position, the PLC controller is used to control the start of the two-way liquid extraction pump 68. The hydraulic oil in the hydraulic oil tank 67 is gently injected into the oil cylinder 61 through the two-way liquid extraction pump 68, thereby 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, thus exerting extrusion on the pressure sensor, and further causing the pressure sensor to generate a change in the electrical signal. Then, the electrical signal is transmitted to the PLC controller. The PLC controller energizes the electromagnetic strip 662 and de-energizes the electromagnetic rod 653, so as to adsorb the conductive sheet 661 through the electromagnetic strip 662, thereby changing the overall length of the resistance plate and further changing 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 passing through the first resistance plate 655. Then, the thickness of the raw material is fed back according to the resistance value of the first resistance plate 655 and recorded in the PLC controller. Then, it is necessary to automatically adjust the die-cutting speed according to the thickness of the real-time die-cutting. The reasons are as follows: When the die-cutting blade 64 first contacts the paper, a slower speed is required to reduce the initial impact on the die-cutting blade 64 and protect the tool. When the die-cutting blade 64 cuts into the paper to a certain depth and the paper resistance is stable, an appropriate increase in speed can not only improve production efficiency but also maintain the continuity of the die-cutting process, making the cutting 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 speed is required for cutting to prevent the paper from tearing and generating burrs to ensure the cut quality, and it can also prevent the die-cutting blade 64 from cutting too deeply into the cutting groove 73.

[0031] Therefore, by recording the thickness of the raw material, the second resistance plate 663 can be symmetrically divided into two parts. During the downward sliding process of the second L-shaped energized plate 664 on the second resistance plate 663, the resistance of the second resistance plate 663 will gradually decrease, thereby increasing the power input to the two-way liquid extraction pump 68, and further increasing the pushing speed of the push rod 62, so as to accelerate the die-cutting speed. When the second resistance plate 663 moves to the center of the just-separated part, it will be detected by the current detector in the PLC controller, thereby changing the current-carrying wires and the conduction direction at both ends of the second resistance plate 663 (making the conduction directions of the two opposite); If the resistance change of the second L-shaped energized plate 664 is related to the current direction when it moves on the second resistance plate 663, when the second L-shaped energized plate 664 moves on the second resistance plate 663 and the resistance decreases in the original current direction, it may be because in this direction, the effective cross-sectional area of the conductive path gradually increases, resulting in an increase in resistance. When the conduction direction changes, the microscopic structure or conduction mechanism inside the material may change, causing the effective cross-sectional area of the conductive path to decrease, thereby resulting in an increase in resistance and a decrease in the die-cutting speed.

[0032] After die cutting is completed, the discharging block 63 rises, and the blower 72 in the placement groove 71 opened at the top of the mounting plate 2 is started, and then the cut paper cup pieces are blown into the storage groove 74. Then, the multi-port blowing pump 76 is started, and air flows are blown out through the plurality of air outlets 77 opened on the inner wall of the storage groove 74, and the paper cup pieces are blown from the storage groove 74 into the discharge port 75 and conveyed to the paper sheet groove 717 through the conveying pipe 78.

[0033] Meanwhile, the drive motor 712 on the outer wall of the U-shaped protective cover is started, the threaded rod 713 at its output end rotates, driving the limit block 711 threadedly penetrated and connected to the threaded rod 713 to slide in the limit groove 710 on the outer wall of the limit plate 79, and the discharge plate 715 fixedly connected to the outer wall of the limit block 711 moves accordingly, and then the waste paper is pushed into the transmission mechanism 4, and then the waste paper is transmitted to the waste material groove 718 through the transmission mechanism 4 for waste material recycling.

[0034] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some 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 various embodiments of the present invention.

Claims

1. A paper cup die-cutting machine, characterized in that, Including: An operating table (1), a mounting plate (2) is fixedly connected to the top end of the operating table (1), a U-shaped protective cover (3) is fixedly connected to the top end of the operating table (1), and a transmission mechanism (4) is arranged between the U-shaped protective cover (3) and the side wall of the mounting plate (2); An adaptive feeding mechanism (5), the adaptive feeding mechanism (5) includes a feeding box (51) for holding raw materials, push ports (52) are opened on the outer walls of two opposite sides of the feeding box (51), a support plate (53) is fixedly connected to the top end of the operating table (1), an electric telescopic rod (54) is fixedly connected to the outer wall of the support plate (53) facing the feeding box (51), and a push plate (55) in contact with the push port (52) is fixedly connected to the telescopic end of the electric telescopic rod (54); An adaptive die-cutting mechanism (6), the adaptive die-cutting mechanism (6) includes an oil cylinder (61) fixedly connected to the inner top wall of the U-shaped protective cover (3), a push rod (62) is hermetically slidably connected in the oil cylinder (61), the other end of the push rod (62) is fixedly connected to a discharge block (63), a die-cutting knife (64) is fixedly connected to the bottom end of the discharge block (63), the adaptive die-cutting mechanism (6) further 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, and the hydraulic oil volume and injection speed between the oil 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).

2. The paper cup die-cutting machine according to claim 1, characterized in that, The adaptive feeding mechanism (5) further includes a telescopic port (56) opened on the outer wall of the support plate (53), a baffle (57) is slidably connected in the telescopic port (56), the other end of the baffle (57) is fixedly connected to the top end of the push plate (55), a blocking groove (58) is opened on the inner top wall of the push port (52) close to the die-cutting knife (64), an electromagnetic plate (59) is fixedly connected to the inner top wall of the blocking groove (58), two symmetrically arranged reset springs (510) are fixedly connected to the bottom end of the inner top wall of the blocking groove (58), the other end of the reset spring (510) is fixedly connected to 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 to a PLC controller to form a feeding circuit.

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

4. A paper cup die-cutting machine according to claim 3, characterized in that The thickness detection component (65) includes a telescopic groove (651) opened at the bottom end of the discharge 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 to a connecting spring, and the other end of the connecting spring is fixedly connected to a squeezing detection ring (652). An electromagnetic rod (653) is fixedly connected to the outer wall of the discharge block (63). A first L-shaped energized plate (654) is fixedly connected to the outer wall of the electromagnetic rod (653). A first resistance plate (655) that is in sliding contact with the L-shaped energized plate is fixedly connected to the outer wall of the storage box (51). The first resistance plate (655), the first L-shaped energized plate (654), and the PLC controller are electrically connected to form a thickness detection circuit.

5. A paper cup die-cutting machine according to claim 4, characterized in that, The real-time depth detection component (66) further includes a conductive sheet (661) magnetically attracted to the other end of the electromagnetic rod (653). Magnetic attraction blocks are fixedly arranged at both ends of the conductive sheet (661). An electromagnetic strip (662) is fixedly connected to the outer wall of the storage box (51). The two magnetic attraction blocks are magnetically attracted to the electromagnetic rod (653) and the electromagnetic strip (662) respectively. A second resistance plate (663) is fixedly connected to the outer wall of the storage box (51). The outer wall of the second resistance plate (663) is in contact with the conductive sheet (661). A conducting wire is fixedly connected to the bottom end of the second resistance plate (663). A second L-shaped energized plate (664) is fixedly connected to the outer wall of the electromagnetic rod (653). The outer wall of the second L-shaped energized 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 energized plate (664), and the conducting wire form a sliding rheostat. The second resistance plate (663), the conductive sheet (661), the second L-shaped energized plate (664), and the conducting wire are electrically connected to the PLC controller to form a real-time depth detection circuit. During the downward sliding process of the second L-shaped energized plate (664) on the second resistance plate (663), the resistance of the sliding rheostat in the first detection circuit gradually decreases. The PLC controller is electrically connected to the electromagnetic rod (653) and the electromagnetic strip (662) to form an auxiliary circuit.

6. The paper cup die-cutting machine according to claim 2, characterized in that, It further includes a discharging mechanism (7). The discharging mechanism (7) includes a placement groove (71) opened at the top end of the mounting plate (2). A blower (72) is fixedly connected to the inner wall of the placement groove (71). A cutting groove (73) is formed between the blower (72) and the placement groove (71). The cutting groove (73) is the same size as the cutting part of the die-cutting knife (64).

7. A paper cup die-cutting machine according to claim 6, wherein, A storage groove (74) that is the same size as the die-cutting knife (64) is opened at the bottom end of the discharge block (63). A discharge port (75) is opened on the outer wall of the discharge block (63). A placement cavity is opened inside the discharge block (63). A multi-port blowing pump (76) is fixedly connected to the inside of the placement cavity. A plurality of air outlets (77) are opened on the inner wall of the storage groove (74). A conveying pipe (78) is fixedly communicated at the discharge port (75). The top end of the mounting plate (2) is fixedly connected with a limiting plate (79). A limiting groove (710) is formed in the outer wall of the limiting plate (79). A limiting block (711) is slidably connected to the inner wall of the limiting groove (710). A driving motor (712) is fixedly connected to the outer wall of the U-shaped protective cover (3). The output end of the driving motor (712) is fixedly connected with a threaded rod (713). The thread of the threaded rod (713) penetrates through the limiting block (711). A discharge plate (715) is fixedly connected to the outer wall of the limiting block (711). The multi-port blowing pump (76), the driving motor (712), the blower (72) are electrically connected to the PLC controller to form a discharge loop.

8. A paper cup die-cutting machine according to claim 7, characterized in that, Two symmetrically arranged support legs (716) are fixedly connected to the bottom end of the operating table (1). A collection tank is fixedly connected between the two support legs (716). A partition plate is fixedly connected in the collection tank. The partition plate divides the collection tank into a paper sheet tank (717) and a waste tank (718). A blanking groove (714) is formed in the operating table (1) at the bottom of the transmission mechanism (4), and the waste tank (718) is located below the blanking groove (714). The other end of the conveying pipe (78) is located above the paper sheet tank (717).

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