A method for detecting die-cutting pressure using a die-cutting machine pressure testing device

Abstract

The present invention relates to the field of die-cutting machine pressure detection technology, and discloses a method for detecting die-cutting pressure using a die-cutting machine pressure testing device, comprising the following steps: S1, placing the test paper in the testing device, pressing the boost button on the panel of the testing device, and then performing the first test through the testing device; S2, if the die-cutting part on the test paper is not separated from the test paper, it means that the pressure is insufficient, continue to press the boost button, increase the pressure value, and then perform the test again through the testing device. The present invention can detect the die-cutting pressure, and can automatically separate the die-cutting part of the test paper from the test paper during the whole process, so that there is no need for frequent manual separation operations, saving time and effort, and can adapt to test papers of different thicknesses, so as to ensure that the test paper can fit with the nozzle, so that the airflow ejected from the nozzle can more fully contact the die-cutting part of the test paper, and avoid airflow leakage affecting the separation of the die-cutting part of the test paper.

Description

Technical Field

[0001] The invention belongs to the technical field of die-cutting machine pressure detection, and in particular relates to a method for detecting die-cutting pressure by using a die-cutting machine pressure testing device. Background Art

[0002] Die-cutting machine is also called die-cutting machine, cutting machine, CNC punching machine, mainly used for die-cutting (full cutting, half cutting), creasing and hot stamping, laminating, automatic waste discharge of some corresponding non-metallic materials, self-adhesive, EVA, double-sided tape, electronics, mobile phone rubber pads, etc. Die-cutting machine uses steel knife, hardware mold, steel wire (or template carved from steel plate), and applies a certain pressure through the embossing plate to roll and cut the printed product or cardboard into a certain shape. It is an important equipment for post-printing packaging processing and molding.

[0003] When using the existing small die-cutting machine, it is necessary to adjust the die-cutting pressure to ensure the die-cutting effect on the printed matter. When detecting and adjusting the die-cutting pressure, the pressure value on the die-cutting machine is adjusted to repeatedly die-cut the test paper until the die-cutting part of the test paper is separated from the test paper, thereby detecting the required die-cutting pressure. In this process, it is necessary to manually separate the test paper from the die-cutting part of the test paper. Since multiple tests are required during the entire test process, manual separation is required throughout the process, which is very cumbersome, time-consuming and labor-intensive.

[0004] Therefore, it is necessary to invent a method for detecting die-cutting pressure using a die-cutting machine pressure testing device to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a method for detecting die-cutting pressure using a die-cutting machine pressure testing device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for detecting die-cutting pressure using a die-cutting machine pressure testing device comprises the following steps:

[0008] S1. Place the test paper in the test device, press the boost button on the test device panel, and then perform the first test through the test device;

[0009] S2. If the die-cut on the test paper does not separate from the test paper, it means that the pressure is insufficient. Continue to press the boost button to increase the pressure value, and then test again through the test device;

[0010] S3. If the die-cutting portion on the test paper is separated from the test paper, it means that the pressure reaches the required level, and the die-cutting pressure test is now completed.

[0011] Furthermore, the testing device includes a testing machine, a detection head is provided inside the testing machine, a curved surface is provided on the front side of the testing machine, a cavity corresponding to the position of the curved surface is provided inside the testing machine, a horizontal opening connected to the cavity is opened at the curved surface, a slider is provided in the cavity, an air inlet cavity is provided inside the slider, a nozzle connected to the air inlet cavity is provided on the outside of the slider, the nozzle extends into the horizontal opening, a driving component for driving the slider to move horizontally along the cavity is provided on the outside of the slider, a bending component for bending the test paper is provided on the outside of the detection head, and an air injection component for injecting air into the air inlet cavity is provided on the outside of the testing machine.

[0012] Furthermore, the driving assembly includes a limit block fixedly connected to the bottom of the slider, the bottom wall of the cavity is provided with a limit groove cooperating with the limit block, a screw rod is rotatably installed in the cavity, the slider is threadedly sleeved on the outside of the screw rod, a first bevel gear is fixedly sleeved on one side of the screw rod, and a second bevel gear cooperating with the first bevel gear is rotatably installed on the top wall of the cavity through a rotating shaft, a torsion spring is sleeved on the end of the screw rod away from the first bevel gear, and the two ends of the torsion spring are respectively fixedly connected to the screw rod and the inner wall of the cavity, an annular groove is provided on the outer side of the second bevel gear, a pull rope is fixedly connected in the annular groove, and the pull rope is wound in the annular groove, and a wire hole connected to the cavity is provided on the side wall of the testing machine, and the end of the pull rope away from the wire hole passes through the wire hole and is connected to the detection head through the connecting assembly.

[0013] Furthermore, the connecting component includes a fixed block fixedly connected to the side of the detection head close to the pull rope, a cross groove is provided on the top of the fixed block, and one end of the pull rope close to the cross groove is fixedly connected to a cross block that cooperates with the cross groove, and the cross block is located in the cross groove.

[0014] Furthermore, the bending assembly includes an electric push rod fixedly connected to the front side of the detection head, the telescopic end of the electric push rod is fixedly connected to a bending plate, and the inner side of the bending plate is provided with an adaptation assembly for adapting to test papers of different thicknesses.

[0015] Furthermore, the adaptation component includes a pair of T-shaped rods, and an active cavity cooperating with the T-shaped rod is symmetrically opened on the inner side of the bending plate. One end of the T-shaped rod is slidably arranged in the active cavity, and the inner wall of the active cavity and the T-shaped rod are fixedly connected by a spring. The two T-shaped rods are commonly fixedly installed with a bracket at one end away from the spring, and a roller is symmetrically rotatably installed on the side of the bracket away from the T-shaped rod, and the two rollers are connected by a transmission belt, and the transmission belt is a steel transmission belt.

[0016] Furthermore, the gas injection assembly includes an air pump fixedly connected to the lower front part of the testing machine, the front side of the testing machine is provided with an opening connected to the limit groove, the output end of the air pump is connected to the air inlet chamber through a hose passing through the opening, a long hole is provided on the bending plate, a sliding rod is slidably inserted in the long hole, grooves cooperating with the sliding rod are provided on the inner walls on both sides of the testing machine, both ends of the sliding rod extend into the groove, and a push switch for controlling the air pump is fixedly installed on the bottom wall of the groove.

[0017] Furthermore, the end of the nozzle is consistent with and flush with the curved surface.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention can detect the die-cutting pressure, and can automatically separate the die-cut test paper film from the test paper during the whole process, so that there is no need for frequent manual separation operations, saving time and effort;

[0020] 2. The present invention can adapt to test papers of different thicknesses, so as to ensure that the test paper can fit the nozzle, so that the airflow ejected from the nozzle can more fully contact the die-cut part of the test paper, and avoid airflow leakage affecting the detachment of the die-cut part of the test paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram showing the structure of a testing machine according to an embodiment of the present invention is shown;

[0022] Figure 2 The cross-sectional structure diagram of the test machine according to the embodiment of the present invention is shown. Figure 1 ;

[0023] Figure 3 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at B in the middle;

[0025] Figure 5 The cross-sectional structure diagram of the test machine according to the embodiment of the present invention is shown. Figure 2 ;

[0026] Figure 6 The embodiment of the present invention is shown Figure 5 The enlarged structural diagram at C in the middle;

[0027] Figure 7 A schematic structural diagram of a slider according to an embodiment of the present invention is shown;

[0028] Figure 8 A structural schematic diagram showing a partial structure of an embodiment of the present invention;

[0029] Fig. 9 A schematic structural diagram of a fixing block according to an embodiment of the present invention is shown;

[0030] Fig.10 A schematic diagram of the top structure of the fixed block and the cross block combination according to an embodiment of the present invention is shown.

[0031] In the figure: 1. testing machine; 2. testing head; 3. slider; 4. screw; 5. air inlet chamber; 6. nozzle; 7. curved surface; 8. limit block; 9. first bevel gear; 10. second bevel gear; 11. pull rope; 12. fixing block; 13. cross slot; 14. electric push rod; 15. bending plate; 16. T-bar; 17. spring; 18. bracket; 19. roller; 20. conveyor belt; 21. slide bar; 22. push switch; 23. air pump; 24. hose; 25. torsion spring; 26. cross block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0033] The present invention provides a method for detecting die-cutting pressure using a die-cutting machine pressure testing device, comprising the following steps:

[0034] S1. Place the test paper in the test device, press the boost button on the test device panel, and then perform the first test through the test device;

[0035] S2. If the die-cut on the test paper does not separate from the test paper, it means that the pressure is insufficient. Continue to press the boost button to increase the pressure value, and then test again through the test device;

[0036] S3. If the die-cutting portion on the test paper is separated from the test paper, it means that the pressure reaches the required level, and the die-cutting pressure test is now completed.

[0037] like Figures 1 to 9 As shown, the testing device includes a testing machine 1, wherein a detection head 2 is arranged inside the testing machine 1, the testing machine 1 is a die-cutting machine in the prior art, the detection head 2 is a component on the die-cutting machine in the prior art used for moving the die-cutting head, a curved surface 7 is arranged on the front side of the testing machine 1, a cavity corresponding to the position of the curved surface 7 is arranged inside the testing machine 1, a horizontal opening connected to the cavity is opened at the curved surface 7, a slider 3 is arranged in the cavity, an air inlet cavity 5 is arranged inside the slider 3, a nozzle 6 connected to the air inlet cavity 5 is arranged on the outside of the slider 3, the nozzle 6 extends into the horizontal opening, a driving component for driving the slider 3 to move horizontally along the cavity is arranged on the outside, a bending component for bending the test paper is arranged on the outside of the detection head 2, and an air injection component for injecting air into the air inlet cavity 5 is arranged on the outside of the testing machine 1.

[0038] When in use, the detection head 2 moves with the die-cutting head to die-cut the test paper, and then the detection head 2 stops moving, and the test machine 1 transports the test paper in the direction close to the curved surface 7. When the die-cutting part of the test paper moves to the curved surface 7, the test machine 1 stops the movement of the test paper, and the detection head 2 moves and cooperates with the driving component to drive the slider 3 to move. When the detection head 2 stops, the slider 3 and the nozzle 6 at this time correspond to the die-cutting part of the test paper, and then the bending component bends the test paper so that the die-cutting part of the test paper fits the curved surface 7 and bends, and then cooperates with the air injection component to inject air into the air inlet cavity 5, and then the air flow is ejected through the nozzle 6 to blow the die-cutting part. If the die-cutting pressure meets the requirements, the air flow generated by the blown air can blow open the die-cutting part of the test paper, so that the cut test paper piece is blown away, so that the test paper is not in contact with the test paper. Separation, at this time it proves that the pressure meets the requirement and the die-cutting of the test paper can be achieved. If the airflow generated by the blown air cannot blow open the die-cutting place and the die-cutting part of the test paper cannot be separated, it means that the die-cutting pressure does not meet the requirement. At this time, the testing machine 1 automatically adjusts the position of the test paper and the detection head 2 to die-cut again, and then performs detection again according to the above principle. In the subsequent detection process, the detection head 2 will automatically perform each translation at an equal distance, so that the die-cutting positions on the test paper are arranged at an equal distance, and the driving component drives the slider 3 to adjust the corresponding position of the die-cutting position, so as to ensure that the position of the nozzle 6 always corresponds to the film cutting place. The pressure generated by the airflow ejected in the above operation on the test paper at the film cutting place is constant. In the entire detection process, there is no need for frequent manual removal of the test paper at the film cutting place, which saves time and effort.

[0039] like Figure 2 , Figure 3 , Figure 4 , Fig. 9 As shown, the driving assembly includes a limit block 8 fixedly connected to the bottom of the slider 3, the bottom wall of the cavity is provided with a limit groove cooperating with the limit block 8, a screw rod 4 is rotatably installed in the cavity, the slider 3 is threadedly sleeved on the outside of the screw rod 4, a first bevel gear 9 is fixedly sleeved on one side of the screw rod 4, and a second bevel gear 10 cooperating with the first bevel gear 9 is rotatably installed on the top wall of the cavity through a rotating shaft, and a torsion spring 25 is sleeved on the end of the screw rod 4 away from the first bevel gear 9, and the two ends of the torsion spring 25 are respectively fixedly connected to the screw rod 4 and the inner wall of the cavity, an annular groove is provided on the outer side of the second bevel gear 10, and a pull rope 11 is fixedly connected in the annular groove, and the pull rope 11 is wound in the annular groove, and a wire hole connected to the cavity is provided on the side wall of the testing machine 1, and the end of the pull rope 11 away from the wire hole passes through the wire hole and is connected to the detection head 2 through the connecting assembly.

[0040] When the detection head 2 moves, the connecting component pulls the pull rope 11 to make it rotate with the second bevel gear 10, thereby driving the first bevel gear 9 to rotate forward with the screw rod 4, and then driving the slider 3 to slide along the screw rod 4. The forward rotation of the screw rod 4 torsional spring 25 causes its torsional deformation to generate a force, so that the position of the detection head 2 and the position of the slider 3 move synchronously. When the detection head 2 is reset, the torsion spring 25 releases the force to reverse the screw rod 4. Conversely, the rotation of the second bevel gear 10 will continuously retract the pull rope 11, and finally the slider 3 is reset.

[0041] like Figure 1 , Figure 8 , Fig. 9 and Fig.10 As shown, the connecting assembly includes a fixed block 12 fixedly connected to the side of the detection head 2 close to the pull rope 11, a cross groove 13 is opened on the top of the fixed block 12, and one end of the pull rope 11 close to the cross groove 13 is fixedly connected to a cross block 26 that cooperates with the cross groove 13, and the cross block 26 is located in the cross groove 13.

[0042] When the detection head 2 moves, it moves with the fixed block 12 and the cross block 26 pulling the pull rope 11. When detection is not needed, the cross block 26 is pulled out from the cross groove 13. At this time, the detection head 2 does not pull the pull rope 11 when moving.

[0043] like Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown, the bending assembly includes an electric push rod 14 fixedly connected to the front side of the detection head 2, and the telescopic end of the electric push rod 14 is fixedly connected to a bending plate 15. The inner side of the bending plate 15 is provided with an adaptation assembly for adapting to test papers of different thicknesses.

[0044] Start the electric push rod 14 to extend it and bring the bending plate 15 down to bend the test paper. When the test paper is bent, the adaptation component makes the test paper fit with the surface of the testing machine 1, so that the test paper fits with the nozzle 6, so that the airflow ejected by the nozzle 6 can more fully contact the die-cut part of the test paper, avoiding airflow leakage from affecting the detachment of the die-cut part of the test paper.

[0045] like Figure 6 and Figure 8 As shown, the adaptation component includes a pair of T-shaped rods 16, and an active cavity cooperating with the T-shaped rod 16 is symmetrically opened on the inner side of the bending plate 15. One end of the T-shaped rod 16 is slidably set in the active cavity, and the inner wall of the active cavity and the T-shaped rod 16 are fixedly connected by a spring 17. A bracket 18 is fixedly installed on one end of the two T-shaped rods 16 away from the spring 17, and a roller 19 is symmetrically rotatably installed on the side of the bracket 18 away from the T-shaped rod 16. The two rollers 19 are connected by a transmission belt 20, and the transmission belt 20 is a steel transmission belt.

[0046] As the bending plate 15 descends, the T-bar 16, the bracket 18, the roller 19, and the conveyor belt 20 are brought down. After the bottom of the bracket 18 contacts the test paper, the test paper is pressed downward to bend it. Subsequently, the conveyor belt 20 contacts the test paper, which pushes the roller 19, the bracket 18, and the T-bar 16 to move in the direction close to the bending plate 15. The T-bar 16 compresses the spring 17 to deform it and generate a force, so that the conveyor belt 20 contacts the surface of the test paper. As the bending plate 15 descends, the conveyor belt 20 descends and rolls on the surface of the test paper, so that the friction between the conveyor belt 20 and the test paper is small, so that the test paper will not be torn, and the test paper is finally bent. The test paper can be adapted to test papers of different thicknesses, so that the test paper fits the nozzle 6, so that the airflow ejected from the nozzle 6 can more fully contact the die-cutting part of the test paper, avoiding airflow leakage from affecting the detachment of the die-cutting part of the test paper.

[0047] like Figure 1 As shown, the gas injection assembly includes an air pump 23 fixedly connected to the lower front side of the testing machine 1, an opening connected to the limit groove is provided on the front side of the testing machine 1, the output end of the air pump 23 is connected to the air inlet chamber 5 through a hose 24 passing through the opening, a long hole is provided on the bending plate 15, a slide bar 21 is slidably inserted in the long hole, grooves matching the slide bar 21 are provided on the inner walls on both sides of the testing machine 1, the size of the groove is larger than the end size of the slide bar 21, when the detection head 2 is die-cutting, the groove will not limit the movement of the detection head 2 with the slide bar 21, both ends of the slide bar 21 extend into the groove, and a push switch 22 for controlling the air pump 23 is fixedly installed on the bottom wall of the groove.

[0048] The bending plate 15 descends with the slide bar 21. After the test paper is bent, as the slide bar 21 descends, the push switch 22 is pressed to control the air pump 23 to start injecting air. The air enters the air inlet chamber 5 through the hose 24 and then is ejected through the nozzle 6. Conversely, when the bending plate 15 is reset, the slide bar 21 leaves the push switch 22 and the air pump 23 stops injecting air.

[0049] like Figure 5 As shown, the end of the nozzle 6 is consistent with the shape of the curved surface 7 and is flush.

[0050] The nozzle 6 can fit the surface of the bent test paper, so that the airflow can more fully contact the die-cut portion of the test paper to avoid leakage.

[0051] Working principle of the test device: when in use, the detection head 2 moves with the die-cutting head to die-cut the test paper, and then the detection head 2 stops moving, and the test machine 1 transports the test paper in the direction close to the curved surface 7. When the die-cutting part of the test paper moves to the curved surface 7, the test machine 1 stops the movement of the test paper. When the detection head 2 moves, it pulls the pull rope 11 with the fixed block 12 and the cross block 26 to make it rotate with the second bevel gear 10, thereby driving the first bevel gear 9 to rotate with the lead screw 4 in the forward direction, and then drives the slider 3 to slide along the lead screw 4. The lead screw 4 rotates forward to twist the torsion spring 25 to torsionally deform it to generate a force, so that the position of the detection head 2 moves synchronously with the position of the slider 3. When the detection head 2 stops, the slider 3 and the nozzle 6 correspond to the die-cutting part of the test paper. , then start the electric push rod 14 to extend it and bring the bending plate 15 down. As the bending plate 15 descends, the T-bar 16, the bracket 18, the roller 19, and the conveyor belt 20 are brought down. After the bottom of the bracket 18 contacts the test paper, the test paper will be pressed downward to bend it. Then the conveyor belt 20 contacts the test paper, which will push the roller 19, the bracket 18, and the T-bar 16 to move in the direction close to the bending plate 15. The T-bar 16 compresses the spring 17 to deform it and generate a force, so that the conveyor belt 20 contacts the surface of the test paper. As the bending plate 15 descends, the conveyor belt 20 descends and rolls on the surface of the test paper, so that the friction between the conveyor belt 20 and the test paper is small, so the test paper will not be torn, and finally the test paper is achieved. Bending, the bending plate 15 descends and brings the slide bar 21 down. After the test paper is bent, as the slide bar 21 descends, the push switch 22 is pressed to control the air pump 23 to start injecting air. The air enters the air inlet chamber 5 through the hose 24 and then is ejected through the nozzle 6 to blow air to the die-cutting position. If the die-cutting pressure meets the requirements, the airflow generated by the blown air can blow open the die-cutting position of the test paper, so that the cut test paper piece is blown away and separated from the test paper. At this time, it proves that the pressure meets the requirements and the die-cutting of the test paper can be achieved. If the airflow generated by the blown air cannot blow open the die-cutting position and the die-cutting part of the test paper cannot be separated, it means that the die-cutting pressure does not meet the requirements. Subsequently, the die-cutting pressure of the test machine 1 is increased, and the test machine 1 automatically The positions of the test paper and the detection head 2 are automatically adjusted to perform die-cutting again, and then the detection is performed again according to the above principle. In the subsequent detection process, the detection head 2 will automatically perform each translation at an equal distance, so that the die-cutting positions on the test paper are arranged at an equal distance. Similarly, the translation of the detection head 2 can realize the corresponding adjustment of the slider 3, so as to ensure that the position of the nozzle 6 always corresponds to the film cutting position. The pressure generated by the airflow ejected in the above operation on the test paper at the film cutting position is constant. During the entire detection process, there is no need for frequent manual removal of the test paper at the film cutting position, which saves time and effort. When the detection head 2 is reset, the torsion spring 25 releases the force to reverse the lead screw 4, and vice versa, the second bevel gear 10 is rotated to continuously retract the pull rope 11, and finally the slider 3 is reset.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A method for detecting die-cutting pressure using a die-cutting machine pressure testing device, characterized in that: The following steps are involved: S1. Place the test paper in the test device, press the boost button on the test device panel, and then perform the first test through the test device; S2. If the die-cut on the test paper does not separate from the test paper, it means that the pressure is insufficient. Continue to press the boost button to increase the pressure value, and then test again through the test device; S3. If the die-cutting part on the test paper is separated from the test paper, it means that the pressure reaches the required level, and the die-cutting pressure test is completed at this time; The testing device comprises a testing machine (1), wherein a testing head (2) is provided inside the testing machine (1), a curved surface (7) is provided on the front side of the testing machine (1), a cavity corresponding to the position of the curved surface (7) is provided inside the testing machine (1), a horizontal opening communicating with the cavity is provided at the curved surface (7), a slider (3) is provided inside the cavity, an air inlet cavity (5) is provided inside the slider (3), a nozzle (6) communicating with the air inlet cavity (5) is provided on the outside of the slider (3), the nozzle (6) extends into the horizontal opening, a driving component for driving the slider (3) to move horizontally along the cavity is provided on the outside of the slider (3), a bending component for bending the test paper is provided on the outside of the testing head (2), and an air injection component for injecting air into the air inlet cavity (5) is provided on the outside of the testing machine (1); Blow air at the die-cutting position. If the die-cutting pressure meets the requirements, the airflow generated by the blown air can blow open the die-cutting position of the test paper, so that the cut test paper piece can be blown away and separated from the test paper. This proves that the pressure meets the requirements and the die-cutting of the test paper can be achieved. If the airflow generated by the blown air cannot blow open the die-cutting position and the die-cut part of the test paper cannot be separated, it means that the die-cutting pressure does not meet the requirements.

2. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 1, characterized in that: The driving assembly comprises a limit block (8) fixedly connected to the bottom of the slider (3); a limit groove cooperating with the limit block (8) is provided on the bottom wall of the cavity; a screw rod (4) is rotatably mounted in the cavity; the slider (3) is threadedly sleeved on the outside of the screw rod (4); a first bevel gear (9) is fixedly sleeved on one side of the screw rod (4); a second bevel gear (10) cooperating with the first bevel gear (9) is rotatably mounted on the top wall of the cavity via a rotating shaft; a torsion spring (25) is sleeved on one end of the screw rod (4) away from the first bevel gear (9); two ends of the torsion spring (25) are respectively fixedly connected to the screw rod (4) and the inner wall of the cavity; an annular groove is provided on the outer side of the second bevel gear (10); a pull rope (11) is fixedly connected in the annular groove; the pull rope (11) Rolled up in the annular groove, the side wall of the testing machine (1) is provided with a wire hole communicating with the cavity, and one end of the pull rope (11) away from the wire hole passes through the wire hole and is connected to the detection head (2) via a connecting assembly.

3. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 2, characterized in that: The connection assembly comprises a fixing block (12) fixedly connected to a side of the detection head (2) close to the pull rope (11), a cross groove (13) being provided on the top of the fixing block (12), and a cross block (26) matching the cross groove (13) being fixedly connected to one end of the pull rope (11) close to the cross groove (13), and the cross block (26) being located in the cross groove (13).

4. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 3, characterized in that: The bending assembly comprises an electric push rod (14) fixedly connected to the front side of the detection head (2), a telescopic end of the electric push rod (14) being fixedly connected to a bending plate (15), and an adaption assembly for adapting to test papers of different thicknesses is provided on the inner side of the bending plate (15).

5. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 4, characterized in that: The adaptable assembly comprises a pair of T-shaped rods (16); an active cavity cooperating with the T-shaped rod (16) is symmetrically opened on the inner side of the bending plate (15); one end of the T-shaped rod (16) is slidably arranged in the active cavity; an inner wall of the active cavity and the T-shaped rod (16) are fixedly connected via a spring (17); a bracket (18) is fixedly installed on one end of the two T-shaped rods (16) away from the spring (17); a roller (19) is symmetrically rotatably installed on one side of the bracket (18) away from the T-shaped rod (16); the two rollers (19) are connected via a transmission belt (20); and the transmission belt (20) is a steel transmission belt.

6. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 5, characterized in that: The gas injection assembly comprises an air pump (23) fixedly connected to the lower front side of the testing machine (1); an opening connected to the limit groove is provided on the front side of the testing machine (1); an output end of the air pump (23) is connected to the air inlet chamber (5) via a hose (24) passing through the opening; a long hole is provided on the bending plate (15); a slide rod (21) is slidably inserted into the long hole; grooves matching the slide rod (21) are provided on the inner walls on both sides of the testing machine (1); both ends of the slide rod (21) extend into the groove; a push switch (22) for controlling the air pump (23) is fixedly installed on the bottom wall of the groove.

7. The method for detecting die-cutting pressure using a die-cutting machine pressure testing device according to claim 6, characterized in that: The end of the nozzle (6) is consistent in shape with the curved surface (7) and is flush.

Images