Automatic tool changing device for a die cutting machine

Abstract

The application provides a die-cutting machine automatic tool changing device, which comprises a first frame body and a second frame body; the first frame body is provided with a rotating seat and a first driving element; the rotating seat is provided with a movable seat and a second driving element; the movable seat is provided with an installation groove and a tool seat in the installation groove; the tool seat is provided with a cutting tool; the movable seat is further provided with a clamping block and a third driving element; when the clamping block abuts against the tool seat, the tool seat is kept in the installation groove; the second frame body is provided with a movable plate and a fourth driving element; the movable plate is located directly above the movable seat; one side of the movable plate close to the movable seat is provided with a tool storage box and a fifth driving element; at least two accommodation grooves are provided on one side of the tool storage box close to the movable seat; an electromagnet is arranged in the accommodation groove; and one side of the tool seat close to the tool storage box is provided with a magnetic attraction element matched with the electromagnet. The application solves the technical problems of complicated operation steps and low automation degree of the existing die-cutting machine tool changing, and achieves the technical effects of automatic tool changing of the die-cutting machine and improved tool changing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die-cutting machines, in particular to an automatic tool changing device of a die-cutting machine. BACKGROUND

[0002] The die-cutting machine is also called a cutting machine, a cutting machine, and a numerical control punching machine, which is mainly used for die-cutting, indentation, and gold stamping of corresponding non-metallic materials, self-adhesive, EVA, double-sided adhesive, electronics, and mobile phone adhesive pads. The die-cutting machine uses a steel knife to apply pressure through a printing plate to cut the printed matter or paperboard into a certain shape.

[0003] The utility model discloses a kind of die-cutting devices of switchable tool type with publication number CN213471421U, including base and moving block, the top of the base is equipped with placing groove, the top of the base is fixedly installed with support left and right ends, the support is installed with horizontal guide rod, the left end of the moving block is equipped with rectangular hole, the moving block is set on horizontal guide rod by rectangular hole, the bottom of the moving block is fixedly installed with fixed plate, the bottom of the fixed plate is equipped with screw groove, the screw groove is screwed with stud, the bottom of the stud is fixedly installed with vertical rod, the lower of the stud is equipped with vertical column, the inside of the vertical column is equipped with cylindrical cavity, the top wall of the cylindrical cavity is equipped with round hole, the bottom of the vertical rod is fixedly installed with cylindrical block through round hole, the bottom of the vertical column is fixedly installed with blade, the side wall of the vertical column left and right ends is equipped with limit piece. The die-cutting device of switchable tool type can disassemble the blade by rotating stud, and different specifications of blade are replaced, and a plurality of cutting modes are increased.

[0004] The die-cutting device of switchable tool type disclosed in the above-mentioned utility model needs to loosen the stud to remove the original blade first, and then tighten the stud of the replaced blade in the screw groove, which is relatively troublesome to operate, and needs to be replaced manually, with low automation degree. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides an automatic tool changing device for a die-cutting machine, which solves the problems of complicated operation steps and low automation degree in replacing the blade of the die-cutting machine in the prior art.

[0006] According to the embodiment of the present application, an automatic tool changing device of a die cutting machine comprises a first frame body and a second frame body; the first frame body is provided with a rotatable rotating seat and a first driving member in transmission connection with the rotating seat; the rotating seat is provided with a movable movable seat and a second driving member in transmission connection with the movable seat; the moving direction of the movable seat is perpendicular to the rotating shaft of the rotating seat; the movable seat is provided with a mounting groove and a detachable tool holder in the mounting groove; one side of the tool holder exposed to the mounting groove is provided with a cutting tool; the movable seat is further provided with a movable clamping block and a third driving member in transmission connection with the clamping block; when the clamping block abuts against the tool holder, the tool holder is kept in the mounting groove; the third driving member drives the clamping block to move close to or away from the tool holder; the second frame body is provided with a movable movable plate and a fourth driving member in transmission connection with the movable plate; the movable plate is located directly above the movable seat; one side of the movable plate close to the movable seat is provided with a liftable tool storage box; the movable plate is provided with a fifth driving member in transmission connection with the tool storage box; one side of the tool storage box close to the movable seat is provided with at least two accommodation grooves for accommodating the tool holder; the accommodation grooves are provided with electromagnets; and one side of the tool holder close to the tool storage box is provided with magnetic attraction members matched with the electromagnets.

[0007] Compared with the prior art, the present application has the following beneficial effects: by adopting the first driving member to drive the rotating seat to rotate and drive the movable seat to rotate, and the fourth driving member to drive the movable plate to move, the cutting tool mounted on the movable seat is moved to below the tool storage box and aligned with one of the accommodation grooves on the tool storage box; then the second driving member drives the movable seat to move close to the tool storage box, and the third driving member drives the sliding block to move away from the tool holder to unlock the cutting tool; after unlocking the cutting tool, the fifth driving member drives the tool storage box to move close to the movable seat to store the cutting tool in the accommodation groove; the cutting tool is fixed in the tool storage box by starting the electromagnet to attract the magnetic attraction member; after storing the cutting tool in the tool storage box, the fourth driving member and the fifth driving member drive the tool storage box to move to store another cutting tool in the tool storage box into the mounting groove on the movable seat; after closing the corresponding electromagnet, the new cutting tool falls into the mounting groove from the accommodation groove; after the fifth driving member drives the tool storage box to move away from the movable seat, the third driving member drives the clamping block to move close to the tool holder to fix the new cutting tool on the movable seat; finally, the first driving member and the second driving member drive the rotating seat and the movable seat to reset, thereby completing the automatic tool changing and continuing the die cutting operation; the present application solves the technical problems of complicated operation steps and low automation degree of the existing die cutting machine tool changing, achieves the automatic tool changing of the die cutting machine, improves the tool changing efficiency, and can automatically position the replaced cutting tool to ensure the die cutting operation precision. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 FIG. 1 is a structural schematic view of the automatic tool changing device of the die cutting machine according to an embodiment of the present application;

[0009] Figure 2 FIG. 2 is a structural schematic view of the automatic tool changing device of the die cutting machine according to another embodiment of the present application;

[0010] Figure 3 This is a cross-sectional view of an automatic blade changer for a die-cutting machine according to an embodiment of the present invention;

[0011] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0012] In the above figures: 1. First frame; 11. First drive component; 12. First motor; 2. Second frame; 21. Fourth drive component; 22. Second motor; 23. First lead screw; 24. First guide rail; 3. Rotating seat; 31. Rotating shaft; 32. Limiting groove; 33. First guide rod; 4. Movable seat; 41. Mounting groove; 42. Locking block; 43. Mounting block; 44. Slide groove; 45. Second guide rod; 46. Holding part; 5. Second drive component; 51. First cylinder; 52. First telescopic rod; 53. First push block; 54. First spring; 6. Blade holder; 61. Cutting blade; 62. Magnetic suction component; 63. Stepped section; 7. Third driving component; 71. Second cylinder; 72. Second telescopic rod; 73. Second push block; 74. Second spring; 8. Movable plate; 81. Blade storage box; 82. Receiving slot; 83. Electromagnet; 84. Slider; 85. Mounting plate; 86. Second guide rail; 9. Fifth driving component; 91. Third motor; 92. Second lead screw. Detailed Implementation

[0013] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figures 1 to 4 As shown in the figure, this embodiment of the invention proposes an automatic blade changer for a die-cutting machine, which is installed on the die-cutting machine to automatically change the cutter 61 of the die-cutting machine, so as to change different types of cutters 61 to meet the production needs of various products or to replace worn cutters 61. At the same time, the cutter 61 is positioned during the process of changing the cutter 61 to ensure the processing accuracy of the die-cutting machine.

[0015] Please refer to Figure 1 and Figure 2The automatic tool changing device of the die cutting machine comprises a first frame body 1 and a second frame body 2, the first frame body 1 and the second frame body 2 are respectively installed on the die cutting machine; the first frame body 1 is provided with a rotatable rotating seat 3 and a first driving member 11 in transmission connection with the rotating seat 3, the rotating seat 3 is provided with a movable movable seat 4 and a second driving member 5 in transmission connection with the movable seat 4, the moving direction of the movable seat 4 on the rotating seat 3 is perpendicular to the rotating shaft of the rotating seat 3, the movable seat 4 is provided with a mounting groove 41 and the mounting groove 41 is provided with a detachable tool seat 6, part of the tool seat 6 extends out of the mounting groove 41 and one side of the tool seat 6 exposed to the mounting groove 41 is provided with a cutting knife 61, the first frame body 1 is driven by the die cutting machine to move, and the die cutting work can be carried out through the cutting knife 61, the movable seat 4 is further provided with a movable clamping block 42 and a third driving member 7 in transmission connection with the clamping block 42, the clamping block 42 abuts against the tool seat 6 to keep the tool seat 6 in the mounting groove 41 to fix the cutting knife 61 on the movable seat 4, and the third driving member 7 is used for driving the clamping block 42 to approach or move away from the tool seat 6 to lock or release the locking of the tool seat 6 on the movable seat 4; the second frame body 2 is provided with a movable activity plate 8 and a fourth driving member 21 in transmission connection with the activity plate 8, the activity plate 8 is located directly above the movable seat 4, one side of the movable seat 4 close to the activity plate 8 is provided with a liftable tool storage box 81, and the activity plate 8 is provided with a fifth driving member 9 in transmission connection with the tool storage box 81, at least two accommodation grooves 82 for accommodating the tool seat 6 are arranged at intervals on one side of the tool storage box 81 close to the movable seat 4, the accommodation grooves 82 store the cutting knives 61 for replacement, electromagnets 83 are respectively arranged in the accommodation grooves 82, and one side of the tool seat 6 close to the tool storage box 81 is provided with magnetic attraction members 62 matched with the electromagnets 83, the electromagnets 83 attract the magnetic attraction members 62 to fix the tool seat 6 on the tool storage box 81 when the electromagnets 83 are turned on, and the tool seat 6 is released by the electromagnets 83 when the electromagnets 83 are turned off.

[0016] Specifically, when the automatic cutter changing device of the die cutting machine is used to change the cutter, the operation process is as follows: when the cutter is changed, the rotating seat 3 is first rotated by the first driving member 11 to rotate the movable seat 4, so that the cutter 61 mounted on the movable seat 4 is directed towards the cutter storage box 81. At the same time, the fourth driving member 21 drives the movable plate 8 to move, so that the cutter storage box 81 is moved above the cutter 61, and the cutter 61 is aligned with one of the empty accommodation grooves 82 on the cutter storage box 81. Then, the second driving member 5 drives the movable seat 4 to approach the cutter storage box 81, and the third driving member 7 drives the sliding block 84 to move away from the cutter seat 6 to unlock the cutter 61. After the cutter 61 is unlocked, the fifth driving member 9 drives the cutter storage box 81 to approach the movable seat 4, so that the cutter 61 is mounted in the corresponding accommodation groove 82. Then, the electromagnet 83 is started to attract the magnetic member 62, so that the cutter 61 is fixed in the cutter storage box 81. After the cutter 61 is mounted in the cutter storage box 81, the fourth driving member 21 and the fifth driving member 9 drive the cutter storage box 81 to move, so that the cutter 61 is moved out of the mounting groove 41, and another cutter 61 stored in the cutter storage box 81 is placed into the mounting groove 41. After the corresponding electromagnet 83 is turned off, the new cutter 61 falls into the mounting groove 41. After the cutter 61 is placed, the fifth driving member 9 drives the cutter storage box 81 to move away from the movable seat 4. Then, the third driving member 7 drives the clamping block 42 to approach the cutter seat 6, so that the new cutter 61 is fixed on the movable seat 4. Finally, the first driving member 11 and the second driving member 5 drive the rotating seat 3 and the movable seat 4 to reset, so that the automatic cutter changing is completed. In this way, the automatic cutter changing is realized, and the cutter changing efficiency is improved. At the same time, the cutter seat 6 and the mounting groove 41 are matched, so that the replaced cutter 61 can be automatically positioned, and the die cutting operation precision is ensured.

[0017] As shown in Figure 2 and Figure 3 , the rotating shaft 31 is arranged on the rotating seat 3, and the mounting hole is arranged on the first frame body 1 and matched with the rotating shaft 31. The first driving member 11 includes the first motor 12. One end of the rotating shaft 31 away from the rotating seat 3 penetrates through the mounting hole and is matched with the output end of the first driving member 11. Through the cooperation of the rotating shaft 31 and the mounting hole, the rotating connection between the rotating seat 3 and the first frame body 1 is realized, so that the rotating seat 3 can rotate smoothly on the first frame body 1. The rotating shaft 31 is driven to rotate by the first motor 12, so that the rotating seat 3 is driven to act, and the movable seat 4 is driven to overturn.

[0018] In detail, the opposite sides of the movable seat 4 are respectively provided with the rotating seat 3, and the rotating seat 3 located at the two sides of the movable seat 4 is respectively rotationally connected with the first frame body 1, so as to ensure that the position of the movable seat 4 on the first frame body 1 remains stable, and prevent the movable seat 4 from tilting during the overturning process, which causes the cutting knife 61 to fail to align with the accommodating groove 82.

[0019] Please combine Figure 2 , Figure 3 and Figure 4 In the embodiment, the rotating seat 3 is provided with a limiting groove 32, the first guide rod 33 is arranged in the limiting groove 32, the axial direction of the first guide rod 33 is perpendicular to the rotating shaft of the rotating seat 3, the end of the movable seat 4 is provided with a mounting block 43, the mounting block 43 extends into the limiting groove 32 and is attached to the inner wall of the limiting groove 32, and the mounting block 43 is provided with a first guide hole matched with the first guide rod 33. The limiting groove 32 is arranged on the rotating seat 3, and the mounting block 43 attached to the limiting groove 32 is arranged at the end of the movable seat 4, so as to limit the movement direction of the movable seat 4 on the rotating seat 3, and ensure that the movable seat 4 moves in the preset direction on the rotating seat 3 through the cooperation of the first guide rod 33 and the first guide hole, thereby avoiding the unexpected deviation of the movable seat 4.

[0020] Specifically, the second driving member 5 includes a first air cylinder 51, a first telescopic rod 52 arranged at the output end of the first air cylinder 51, and a first push block 53 arranged on the first telescopic rod 52, the first push block 53 is provided with a first through hole matched with the first guide rod 33, the second driving member 5 further includes a first spring 54, and the first push block 53 and the first spring 54 respectively abut against the opposite sides of the mounting block 43. The first telescopic rod 52 is driven to elongate by the first air cylinder 51, so as to drive the first push block 53 to push the mounting block 43 to move, so that the mounting block 43 slides in the limiting groove 32 and drives the movable seat 4 to act, and when the first telescopic rod 52 is elongated to push the movable seat 4 to move close to the cutter storage box 81, the first spring 54 is compressed, when the first telescopic rod 52 is shortened, the first spring 54 restores to the original length and pushes the mounting block 43 to reset through the elastic force provided by the first spring 54, so as to reset the movable seat 4, and when the cutting knife 61 performs the die cutting work, the mounting block 43 is limited by the first push block 53, so as to prevent the movable seat 4 from shaking during the die cutting work, and ensure that the cutting knife 61 can exert sufficient pressure on the material to be cut.

[0021] As Figure 3 and Figure 4As shown, in order to ensure the card block 42 moves smoothly on the movable seat 4, the movable seat 4 is provided with a sliding groove 44 communicated with the mounting groove 41, the card block 42 is movably arranged in the sliding groove 44, the sliding groove 44 is provided with a second guide rod 45 and the axial direction of the second guide rod 45 is consistent with the moving direction of the card block 42, and the card block 42 is provided with a second guide hole matched with the second guide rod 45. The moving direction of the card block 42 is limited by the cooperation of the card block 42 and the sliding groove 44, so that the card block 42 can move along the preset direction, and the cooperation of the second guide rod 45 and the second guide hole can keep the card block 42 in the sliding groove 44, preventing the card block 42 from falling out of the sliding groove 44 during the action. The mounting groove 41 is provided with the sliding groove 44, the card block 42 and the third driving member 7 at opposite ends respectively, the card blocks 42 arranged at the opposite ends of the mounting groove 41 act synchronously, which is beneficial to improve the stability of the position of the tool seat 6 on the movable seat 4, and keep the position of the cutter 61 stable while avoiding the cutter 61 from tilting or shaking to affect the working operation.

[0022] In detail, the third driving member 7 comprises a second cylinder 71, a second telescopic rod 72 arranged at the output end of the second cylinder 71 and a second push block 73 arranged on the second telescopic rod 72, the second push block 73 is provided with a second through hole matched with the second guide rod 45, and the third driving member 7 further comprises a second spring 74, the second push block 73 and the second spring 74 respectively abut against the opposite surfaces of the card block 42. The second cylinder 71 is used to drive the second telescopic rod 72 to elongate and drive the second push block 73 to move, so that the card block 42 is driven by the second push block 73 to move close to the tool seat 6, thereby fixing the tool seat 6 in the mounting groove 41 through the cooperation of the card block 42 and the tool seat 6, and the second elastic member is compressed during the process that the card block 42 moves close to the tool seat 6, the second elastic member restores to the original length when the second telescopic rod 72 shortens to reset the second push block 73, and the card block 42 is driven away from the tool seat 6 by the elastic force provided by the second spring 74, so as to release the locking of the tool seat 6.

[0023] Please refer to Figure 4The knife seat 6 comprises a step portion 63, the clamping block 42 is provided with a clamping portion 46, and when the third driving member 7 drives the clamping block 42 to approach the knife seat 6, the clamping portion 46 extends into the mounting groove 41 and presses the step portion 63 in the mounting groove 41. The step portion 63 is arranged on the knife seat 6, and the clamping portion 46 matched with the step portion 63 is arranged on the clamping block 42. After the clamping block 42 moves to the position abutting against the knife seat 6, the clamping portion 46 presses the step portion 63 in the mounting groove 41, so that the position of the knife seat 6 in the mounting groove 41 is kept stable, and the knife seat 6 is prevented from falling out of the mounting groove 41 during the die cutting operation.

[0024] As shown in Figure 2 and Figure 3 , the fourth driving member 21 comprises a second motor 22 and a first lead screw 23 arranged at the output end of the second motor 22. The first lead screw 23 is rotatably arranged on the second frame body 2, and the axial direction of the first lead screw 23 is consistent with the moving direction of the movable plate 8. The movable plate 8 is provided with a first threaded hole matched with the first lead screw 23. When the first lead screw 23 rotates under the drive of the second motor 22, the movable plate 8 is driven to move along the axial direction of the first lead screw 23 through the cooperation between the first lead screw 23 and the first threaded hole, so that the position of the movable plate 8 is adjusted, the cutting knife 61 to be disassembled is aligned with the accommodation groove 82 on the knife storage box 81, or the cutting knife 61 in the accommodation groove 82 is aligned with the mounting groove 41 on the movable seat 4, so that the cutting knife 61 is smoothly loaded into or taken out of the mounting groove 41.

[0025] Optionally, the second frame body 2 is provided with a first guide rail 24, the length direction of the first guide rail 24 is consistent with the axial direction of the first lead screw 23, and the movable plate 8 is provided with a sliding block 84 matched with the first guide rail 24. The cooperation between the first guide rail 24 and the sliding block 84 guides the movable plate 8 to move on the second frame body 2, prevents the movable plate 8 from deviating unexpectedly, causes the cutting knife 61 to be unable to align with the accommodation groove 82, reduces the friction between the movable plate 8 and the second frame body 2, and ensures that the movable plate 8 can move smoothly on the second frame body 2.

[0026] Please refer to Figure 1 and Figure 3The storage cutter box 81 is provided with a mounting plate 85 on one side close to the movable plate 8, the fifth driving element 9 comprises a third motor 91 and a second screw rod 92 provided on the output end of the third motor 91, the second screw rod 92 is rotatably arranged on the movable plate 8 and the axial direction of the second screw rod 92 is vertical, the mounting plate 85 is provided with a second threaded hole matched with the second screw rod 92. When the second screw rod 92 rotates under the drive of the third motor 91, the mounting plate 85 can be driven to move along the axial direction of the second screw rod 92 through the cooperation of the second threaded hole and the second screw rod 92, so as to drive the mounting plate 85 to ascend and descend along the vertical direction and drive the storage cutter box 81 to move along the vertical direction, and the moving direction of the storage cutter box 81 can be controlled through the rotation direction of the second screw rod 92 controlled by the third motor 91, so as to conveniently control the action of the storage cutter box 81 to put the cutter 61 into the accommodating groove 82 or take out the cutter 61 in the accommodating groove 82 and put it into the mounting groove 41.

[0027] Preferably, the movable plate 8 is provided with a second guide rail 86, the length direction of the second guide rail 86 is vertical, and the end of part of the mounting plate 85 is matched with the second guide rail 86. The second guide rail 86 is used for guiding the mounting plate 85 to move along the vertical direction, preventing the mounting plate 85 from deviating or tilting when moving, and making the cooperation between the mounting plate 85 and the movable plate 8 reliable, so as to improve the stability of the storage cutter box 81 when moving.

[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A die cutter automatic tool changer, characterized by: The utility model provides a cutting machine, including first frame and second frame, first frame is equipped with rotatable rotating seat and first drive part with rotating seat transmission connection, rotating seat is equipped with movable movable seat and second drive part with movable seat transmission connection, movable seat's moving direction is perpendicular with rotating seat's rotation axis, movable seat is equipped with installation slot and is equipped with detachable tool holder in installation slot, the one side of tool holder exposed in installation slot is equipped with cutting knife, movable seat is equipped with movable clamping block and third drive part with clamping block transmission connection, clamping block and tool holder abut when make tool holder keep in installation slot, third drive part drives clamping block to approach or away from tool holder, second frame is equipped with movable movable plate and fourth drive part with movable plate transmission connection, so that movable plate is located movable seat's right above, the one side of movable plate close to movable seat is equipped with liftable tool storage box and is equipped with fifth drive part with tool storage box transmission connection on movable plate, the one side of tool storage box close to movable seat is equipped with at least two interval and is used for accommodating tool holder's accommodation groove, accommodation groove is equipped with electromagnet and the one side of tool holder close to tool storage box is equipped with with electromagnet matched magnetic attraction piece, The rotating seat has a limiting slot, the first guide rod is arranged in the limiting slot, and the axial direction of the first guide rod is perpendicular to the rotating axis of the rotating seat, the end of the movable seat is provided with a mounting block, the mounting block extends into the limiting slot and is attached to the inner wall of the limiting slot, and the first guide hole matched with the first guide rod is arranged on the mounting block. The second drive part includes a first cylinder, a first telescopic rod arranged at the output end of the first cylinder, and a first push block arranged on the first telescopic rod, the first push block is provided with a first through hole matched with the first guide rod, and the second drive part further includes a first spring, the first push block and the first spring are respectively attached to the opposite surfaces of the mounting block. The movable seat is provided with a sliding groove communicated with the mounting slot, the clamping block is movably arranged in the sliding groove, the second guide rod is arranged in the sliding groove, and the axial direction of the second guide rod is consistent with the moving direction of the clamping block, and the second guide hole matched with the second guide rod is arranged on the clamping block. The third drive part includes a second cylinder, a second telescopic rod arranged at the output end of the second cylinder, and a second push block arranged on the second telescopic rod, the second push block is provided with a second through hole matched with the second guide rod, and the third drive part further includes a second spring, the second push block and the second spring are respectively attached to the opposite surfaces of the clamping block. The tool holder includes a step part, the clamping block has a clamping part, and when the third drive part drives the clamping block to approach the tool holder, the clamping part extends into the installation slot and presses the step part in the installation slot.

2. The automatic tool changer of a die cutting machine according to claim 1, characterized in that: The rotating seat is provided with a rotating shaft, and the first frame is provided with a mounting hole matched with the rotating shaft, and the first drive part includes a first motor, one end of the rotating shaft away from the rotating seat penetrates through the mounting hole and is matched with the output end of the first drive part.

3. The automatic tool changer of die cutting machine according to claim 1, characterized in that: The fourth driving member comprises a second motor and a first screw rod arranged at the output end of the second motor, the first screw rod is rotatably arranged on the second frame body and the axial direction of the first screw rod is consistent with the moving direction of the movable plate, and the movable plate is provided with a first threaded hole matched with the first screw rod.

4. The automatic tool changer of a die cutting machine according to claim 3, characterized in that: The second frame body is provided with a first guide rail, the length direction of the first guide rail is consistent with the axial direction of the first screw rod, and the movable plate is provided with a sliding block matched with the first guide rail.

5. The automatic tool changer of die cutting machine according to claim 1, characterized in that: One side of the knife storage box close to the movable plate is provided with a mounting plate, the fifth driving member comprises a third motor and a second screw rod arranged at the output end of the third motor, the second screw rod is rotatably arranged on the movable plate and the axial direction of the second screw rod is vertical, and the mounting plate is provided with a second threaded hole matched with the second screw rod.

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