Die cutting mechanism for servo adjustment of die closing height

Abstract

The utility model relates to the technical field of die cutting machines, in particular to a die cutting mechanism capable of adjusting die closing height in a servo mode, which comprises an upper die and a lower die, an upper cutting die fixing plate and a lower cutting die fixing plate are respectively arranged between the upper die and the lower die, the upper cutting die fixing plate is arranged on the bottom end face of the upper die, and the lower cutting die fixing plate is arranged on the bottom end face of the upper die. An adjusting assembly is arranged in the lower cutting die fixing plate and comprises a pushing part, an inclined wedge plate and an inclined wedge sliding block, the inclined wedge plate is arranged at the bottom of the lower cutting die fixing plate, the bottom end face of the inclined wedge plate is a first adjusting inclined face inclining towards one side, and the inclined wedge sliding block is arranged on the bottom end face of the inclined wedge plate in a sliding mode through the pushing part. The inclined wedge plate can be located on the bottom end face of the lower cutting die fixing plate through the inclined wedge sliding block to move up and down, the stroke height and the gap between the upper cutting die fixing plate and the lower cutting die fixing plate in the die cutting mechanism can be correspondingly adjusted, and the punching working conditions of cutting dies with different cutting edge depths are met.

Description

Technical Field

[0001] The utility model relates to the technical field of die cutting machines, in particular to a die cutting mechanism with a servo-controlled die closing height. Background Art

[0002] Die cutting machine is also called 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 adhesive, 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 stamping 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] Since the die-cutting machine needs to replace the die with different blade depths on the upper die fixing plate and the lower die fixing plate according to different sheets and shapes, the stroke height and gap between the upper die and the lower die in the die-cutting mechanism need to be adjusted accordingly to adapt to the die with the corresponding depth. Therefore, in view of these current situations, it is necessary to develop a die-cutting mechanism with servo-adjustable die height to meet the needs of actual use. Summary of the invention

[0004] The utility model aims to provide a die-cutting mechanism with a servo-adjustable die closing height, which is used to solve the technical problem that after replacing a die with a different blade depth, the stroke height and the gap between an upper die fixing plate and a lower die fixing plate in the die-cutting mechanism need to be adjusted accordingly so as to adapt to the die with the corresponding depth.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A die-cutting mechanism with servo-adjustable die closing height comprises an upper die and a lower die, wherein an upper die fixing plate and a lower die fixing plate are respectively arranged between the upper die and the lower die, the upper die fixing plate is arranged on the bottom end surface of the upper die, the lower die fixing plate is arranged on the bottom end surface of the upper die, an adjusting component is arranged inside the lower die fixing plate, the adjusting component comprises a pushing portion, an inclined wedge plate and an inclined wedge slider, the inclined wedge plate is arranged on the bottom of the lower die fixing plate, the bottom end surface of the inclined wedge plate is a first adjusting inclined surface inclined to one side, the inclined wedge slider is slidably arranged on the bottom end surface of the inclined wedge plate through the pushing portion, and the inclined wedge plate can be located on the bottom end surface of the lower die fixing plate through the inclined wedge slider and move up and down.

[0007] In the above description, as a further solution, the pushing part is composed of a motor and a screw rod, the middle part of the bevel slider is a hollow structure, the screw rod is screwed to the middle part of the bevel slider, the output end of the motor is fixedly connected to one end of the screw rod, the screw rod is rotated by the motor, and the bevel slider can move horizontally along the axial direction of the screw rod.

[0008] In the above description, as a further solution, a lifting seat and a base are provided in sequence at the bottom of the lower mold, and the lifting seat and the base are movably connected through a cam-connecting rod assembly, and the lifting seat can move up and down toward the bottom of the lower mold through the cam-connecting rod assembly.

[0009] In the above description, as a further solution, a number of guide rods are provided between the upper mold and the base for fixed connection, and the several guide rods are respectively arranged at the four corners of the upper mold and the base, and guide through holes are provided at the four corners of the lower mold and the lifting seat, and the lower mold and the lifting seat can be slidably connected to the middle part of the guide rod through the guide through holes.

[0010] In the above description, as a further solution, the cam-connecting rod assembly is composed of a rotating shaft and a connecting rod, and the two ends of the rotating shaft are rotatably arranged on both sides of the base, and the middle part of the rotating shaft is a cam part protruding toward the side wall, and the axial direction of the cam part is not in the same straight line with the axial direction of the two ends of the connecting rod, one end of the connecting rod is rotatably connected to the middle part of the cam part, and the other end of the connecting rod is rotatably connected to the bottom of the lifting seat.

[0011] In the above description, as a further solution, a synchronous wheel is provided at one end of the rotating shaft, and the center of the synchronous wheel is fixedly connected to the end of the rotating shaft.

[0012] In the above description, as a further solution, a buffer spring is provided at the bottom end of the guide rod, the buffer spring is arranged at the four corners of the lifting seat, and the bottom end of the buffer spring is in contact with the base.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] The present application discloses a die-cutting mechanism with a servo-adjustable die closing height, wherein an adjusting component is provided inside a lower die cutting plate, wherein an inclined wedge slider is slidably arranged on the bottom end surface of the inclined wedge plate through a pushing portion, and at the same time, the inclined wedge plate pushes the lower die cutting plate located below the upper die cutting plate to move up and down, thereby realizing corresponding adjustment of the stroke height and gap between the upper die cutting plate and the lower die cutting plate in the die-cutting mechanism to meet the punching conditions of die cutting plates with different blade depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a die-cutting mechanism with servo-adjustable die-closing height according to the utility model;

[0016] Figure 2 It is a structural schematic diagram of an upper die, a base and a lifting seat in a die-cutting mechanism with servo-adjustable die closing height described in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the lower die in a die-cutting mechanism with servo-adjustable die closing height described in the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the lower die in a die-cutting mechanism with servo-adjustable die-closing height according to the utility model;

[0019] Figure 5 It is a side structural schematic diagram of a base and a lifting seat in a die-cutting mechanism with servo adjustment of mold closing height described in the utility model.

[0020] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 7 The utility model is a schematic diagram of the internal structure of the base and the lifting seat in the die-cutting mechanism with servo adjustment of the mold closing height.

[0022] In the figure: 1-upper die, 11-upper die fixing plate, 12-guide rod, 13-buffer spring, 2-lower die, 21-lower die fixing plate, 22-guide through hole, 3-base, 31-cam connecting rod assembly, 311-rotating shaft, 3111-cam part, 312-connecting rod, 313-synchronizing wheel, 4-lifting seat, 5-adjusting assembly, 51-pushing part, 511-motor, 512-screw rod, 52-bevel plate, 53-bevel slider. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0024] See also Figure 1-7A die-cutting mechanism with servo-adjustable die-closing height is specifically implemented, comprising an upper die 1 and a lower die 2. A lifting seat 4 and a base 3 are sequentially arranged at the bottom of the lower die 2. The lifting seat 4 and the base 3 are movably connected via a cam-link assembly 31. The lifting seat 4 can move up and down toward the bottom of the lower die 2 via the cam-link assembly 31. An upper die-cutting fixing plate 11 and a lower die-cutting fixing plate 21 are respectively arranged between the upper die 1 and the lower die 2. The upper die-cutting fixing plate 11 is arranged at the bottom end surface of the upper die 1, and the lower die-cutting fixing plate 21 is arranged at the bottom end surface of the upper die 1. An adjusting component 5 is arranged on the bottom end surface of the upper mold 1, and the interior of the lower cutting mold fixing plate 21 is provided with the adjusting component 5. The adjusting component 5 includes a pushing portion 51, an inclined wedge plate 52 and an inclined wedge slider 53. The inclined wedge plate 52 is arranged on the bottom of the lower cutting mold fixing plate 21, and the bottom end surface of the inclined wedge plate 52 is a first adjusting inclined surface 521 inclined to one side. The inclined wedge slider 53 is slidably arranged on the bottom end surface of the inclined wedge plate 52 through the pushing portion 51. The inclined wedge plate 52 can be located on the bottom end surface of the lower cutting mold fixing plate 21 through the inclined wedge slider 53 and move up and down.

[0025] An adjusting assembly 5 is provided inside the lower die-cutting plate 21, and the inclined wedge slider 53 is slidably arranged on the bottom end surface of the inclined wedge plate 52 through the pushing portion 51. At the same time, the inclined wedge plate 52 pushes the lower die-cutting plate 21 located below the upper die-cutting plate 11 to move up and down, thereby realizing corresponding adjustment of the stroke height and gap between the upper die-cutting plate 11 and the lower die-cutting plate 21 in the die-cutting mechanism to meet the punching conditions of die-cutting dies with different blade depths.

[0026] Further, such as Figure 2 As shown, a plurality of guide rods 12 are provided between the upper mold 1 and the base 3 for fixed connection, and the plurality of guide rods 12 are respectively arranged at the four corners of the upper mold 1 and the base 3, and guide through holes 22 are provided at the four corners of the lower mold 2 and the lifting seat 4. The lower mold 2 and the lifting seat 4 are slidably connected to the middle part of the guide rod 12 through the guide through holes 22. When the lower mold 2 and the lifting seat 4 are located below the upper mold 1 for movement, they can be limitedly slid in the middle part of the guide rod 12 through the guide through holes 22, thereby stabilizing the movement trajectory of the lower mold 2 and the lifting seat 4.

[0027] Further, such as Figure 1-2 As shown, a buffer spring 13 is provided at the bottom end of the guide rod 12. The buffer spring 13 is arranged at the four corners of the lifting seat 4, and the bottom end of the buffer spring 13 abuts against the base 3. When the lower mold 2 is reset downward, the buffer spring 13 is located between the base 3 and the lifting seat 4. The impact force of the lower mold 2 and the lifting seat 4 when they are reset downward can be applied to the buffer spring 13, which can effectively reduce the impact force between the lower mold 2 and the lifting seat 4 and the base 3, and effectively protect the die-cutting mechanism.

[0028] The specific structure of the driving part 51 is as follows: Figure 3-4As shown, the pushing part 51 is composed of a motor 511 and a screw rod 512, the middle part of the bevel slider 53 is a hollow structure, the screw rod 512 is screwed to the middle part of the bevel slider 53, the output end of the motor 511 is fixedly connected to one end of the screw rod 512, the screw rod 512 is rotated by the motor 511, and the bevel slider 53 can move horizontally along the axial direction of the screw rod 512, wherein the motor 511 can be composed of a servo motor 511 with high control accuracy, and the screw rod 512 is accurately controlled by the servo motor 511 to rotate, driving the bevel slider 53 to move along the bottom end surface of the first adjusting inclined surface 521, so that the bevel slider 53 is located at different positions of the first adjusting inclined surface 521 to push the height position of the lower cutting die fixing plate 21 upward or downward, and the stroke height and gap between the upper cutting die fixing plate 11 and the lower cutting die fixing plate 21 are adjusted accordingly to meet the punching conditions of cutting dies with different blade depths.

[0029] The specific structure of the cam connecting rod assembly 31 is as follows: Figure 6-7 As shown, the cam-linkage assembly 31 is composed of a rotating shaft 311 and a connecting rod 312, and the two ends of the rotating shaft 311 are rotatably arranged on both sides of the base 3, and the middle part of the rotating shaft 311 is a cam portion 3111 protruding toward the side wall, and the axial direction of the cam portion 3111 is not in the same straight line as the axial direction of the two ends of the connecting rod 312, one end of the connecting rod 312 is rotatably connected to the middle part of the cam portion 3111, and the other end of the connecting rod 312 is rotatably connected to the bottom of the lifting seat 4, and one end of the rotating shaft 311 is provided with a synchronous wheel 313, and the center of the synchronous wheel 313 is fixedly connected to the end of the rotating shaft 311.

[0030] A working process of a die-cutting mechanism with servo-adjustable die-closing height: the servo motor 511 precisely controls the screw rod 512 to rotate, driving the inclined wedge slider 53 to move along the bottom end surface of the first adjustment inclined surface 521, so that the inclined wedge slider 53 is located at different positions of the first adjustment inclined surface 521 to push the height position of the lower die-cutting fixed plate 21 upward or downward, and the stroke height and gap between the upper die-cutting fixed plate 11 and the lower die-cutting fixed plate 21 are adjusted accordingly;

[0031] The synchronous wheel 313 is then driven to rotate through an external transmission system, and the rotating shaft 311 and the synchronous wheel 313 rotate synchronously. At the same time, the cam portion 3111 axially offset in the middle of the rotating shaft 311 can make a circular motion along the axial direction of the rotating shaft 311, and at the same time, the connecting rod 312 is driven to move up and down. The other end of the connecting rod 312 is rotatably connected to the bottom of the lifting seat 4, so that the lifting seat 4 can push the lower mold 2 to one side of the upper mold 1 to perform up and down reciprocating motion.

[0032] The above is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the utility model, which do not depart from the content of the technical solution of the utility model, are within the scope of the technical solution of the utility model.

Claims

1. A die cutting mechanism with servo-adjustable die closing height, comprising an upper die and a lower die, an upper die fixing plate and a lower die fixing plate are respectively arranged between the upper die and the lower die, the upper die fixing plate is arranged on the bottom end surface of the upper die, and the lower die fixing plate is arranged on the bottom end surface of the upper die, characterized in that: An adjustment component is provided inside the lower die cutting die fixing plate, and the adjustment component includes a pushing portion, an inclined wedge plate and an inclined wedge slider. The inclined wedge plate is arranged at the bottom of the lower die cutting die fixing plate, and the bottom end surface of the inclined wedge plate is a first adjustment inclined surface inclined to one side. The inclined wedge slider is slidably arranged on the bottom end surface of the inclined wedge plate through the pushing portion, and the inclined wedge plate can be located on the bottom end surface of the lower die cutting die fixing plate through the inclined wedge slider and move up and down.

2. A die-cutting mechanism with servo-controlled die-closing height according to claim 1, characterized in that: The pushing part is composed of a motor and a screw rod. The middle part of the bevel slider is a hollow structure. The screw rod is screwed to the middle part of the bevel slider. The output end of the motor is fixedly connected to one end of the screw rod. The screw rod is rotated by the motor, and the bevel slider can move horizontally along the axial direction of the screw rod.

3. A die-cutting mechanism with servo-controlled die-closing height according to any one of claims 1 to 2, characterized in that: The bottom of the lower mold is provided with a lifting seat and a base in sequence. The lifting seat and the base are movably connected through a cam-connecting rod assembly. The lifting seat can move up and down toward the bottom of the lower mold through the cam-connecting rod assembly.

4. A die-cutting mechanism with servo-controlled die-closing height according to claim 3, characterized in that: A plurality of guide rods are arranged between the upper mold and the base for fixed connection. The plurality of guide rods are respectively arranged at the four corners of the upper mold and the base. Guide through holes are arranged at the four corners of the lower mold and the lifting seat. The lower mold and the lifting seat are slidably connected to the middle part of the guide rods through the guide through holes.

5. The die-cutting mechanism with servo-controlled die-closing height according to claim 3, characterized in that: The cam-connecting rod assembly is composed of a rotating shaft and a connecting rod. The two ends of the rotating shaft are rotatably arranged on both sides of the base, and the middle part of the rotating shaft is a cam part protruding toward the side wall. The axial direction of the cam part is not in the same straight line as the axial direction of the two ends of the connecting rod. One end of the connecting rod is rotatably connected to the middle part of the cam part, and the other end of the connecting rod is rotatably connected to the bottom of the lifting seat.

6. A die-cutting mechanism with servo-controlled die-closing height according to claim 5, characterized in that: A synchronous wheel is provided at one end of the rotating shaft, and the center of the synchronous wheel is fixedly connected to the end of the rotating shaft.

7. The die-cutting mechanism with servo-controlled die-closing height according to claim 4, characterized in that: The bottom ends of the guide rods are each provided with a buffer spring, the buffer spring is arranged at the four corners of the lifting seat, and the bottom ends of the buffer springs are in contact with the base.

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