Tool changing mechanism of die-cutting machine

Abstract

The utility model relates to a die-cutting machine tool changing mechanism which comprises a die holder, the interior of the die holder is hollow, a fixing seat is rotatably installed at the center of the inner bottom face of the die holder, a tool outlet is formed in the bottom of the die holder, and a plurality of through holes are formed in the top face of the fixing seat. The plurality of through holes extend downwards and penetrate through the bottom surface of the fixed seat, one through hole is aligned with the knife outlet up and down, and a knife handle is arranged in each through hole; a driving motor is further arranged in the fixing base and located above the fixing base, an electric telescopic rod is arranged at the output end of the driving motor, and the electric telescopic rod is detachably and fixedly connected with the top end of the cutter handle; based on improvement of existing die cutting equipment, the tool magazine is additionally arranged in the die holder, so that a plurality of tools can be mounted in advance according to actual use requirements, the efficiency is higher when tools are replaced during subsequent production replacement or long-time use of the tools, the die cutting equipment can be suitable for mixed use of various types of paperboards, and the production efficiency is improved. And the application range is further expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of carton cutting equipment, in particular to a knife changing mechanism for a die cutting machine. Background Art

[0002] The die-cutting machine is also called a cutting machine, a cutting machine, or a CNC punching machine. It is mainly used for some corresponding non-metallic materials, self-adhesive stickers, EVA, double-sided tape, electronics, mobile phone pads, etc. The die-cutting machine uses steel knives, hardware molds, steel wires, etc. to apply a certain amount of pressure through the stamping plate to cut the printed product or cardboard into a certain shape. It is an important equipment for post-printing packaging processing and molding. The current die-cutting machine tool changing mechanism in society can basically meet people's needs.

[0003] Especially in the production process of cartons, existing die-cutting machines usually use bolts to fix the cutter, and often only one cutter can be installed. In the actual production process, it is necessary to regularly change the cutter according to different usage requirements and the usage of the blade. This structure is inconvenient to disassemble and assemble, and it is very easy to affect the efficiency of carton processing and production. Utility Model Content

[0004] Based on the above description, the utility model provides a tool changing mechanism for a die-cutting machine to solve the problems that the tool mounting structure of the existing die-cutting machine is fixed, inconvenient to assemble and disassemble, and does not have an automatic tool changing function, thus greatly affecting the processing and production efficiency of cartons.

[0005] The utility model is realized through the following technical solutions:

[0006] A tool changing mechanism for a die cutting machine comprises a die base, the interior of the die base is hollow and a fixed base is rotatably mounted at the center of the inner bottom surface, a knife outlet is arranged at the bottom of the die base, a plurality of through holes are opened on the top surface of the fixed base, and the plurality of through holes extend downward and penetrate to the bottom surface of the fixed base so that one of the through holes is aligned with the knife outlet up and down, a knife handle is arranged in each of the through holes, and a blade is arranged at the bottom end of the knife handle; a drive motor is also arranged inside the fixed base above the fixed base, an electric telescopic rod is vertically arranged on the output end of the drive motor, the bottom of the electric telescopic rod extends vertically downward and is detachably fixedly connected to the top end of one of the knife handles.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the fixing seat is cylindrical, and the plurality of through holes are arranged in a circular array around the center of the fixing seat.

[0009] Furthermore, a bearing seat is provided between the fixed seat and the inner bottom surface of the mold seat, and a toothed portion is provided at the edge of the top surface of the fixed seat, an electric motor is provided on one side of the toothed portion, and a gear sleeve is provided on the output end of the electric motor and meshes with the toothed portion.

[0010] Furthermore, a mounting groove is provided at the center of the fixing seat, and a knife locking buckle is provided in the mounting groove. The knife locking buckle is a column and has a plurality of rectangular openings arranged around the side wall. The rectangular openings extend toward four sides and respectively pass through the through hole one by one, and an electric push rod is provided inside each of the rectangular openings. A limiting groove matching the end of the electric push rod is provided on the side wall of the knife handle.

[0011] Furthermore, a threaded hole is provided at the top of the knife handle, a threaded section matching the threaded hole is provided at the bottom of the electric telescopic rod, and an elastic pad is arranged around the threaded section, and the bottom end of the elastic pad fits the top surface of the knife handle.

[0012] Furthermore, a plurality of support rods are arranged around the cutting edge on the bottom surface of the mold base, a positioning ring is fixedly connected to the bottom ends of the support rods, a circular hole is provided at the center of the positioning ring, and when the bottom end of the knife handle extends downward and its stepped surface abuts against the top surface of the positioning ring, the blade just passes through the circular hole and extends to the bottom of the positioning ring.

[0013] Furthermore, the support rod is composed of two sleeve rods that are movably sleeved with each other, and one of the sleeve rods is provided with a spring inside and is fixedly connected to the top end of the other sleeve rod.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. This application is based on the improvement of the existing die-cutting equipment, and a tool library is added inside the die base, so that it can pre-install multiple tools according to actual use needs, so that when changing tools in subsequent production changes or long-term use, the efficiency is higher, and the entire operation process is automated, which not only greatly improves the work efficiency, but also makes it suitable for the mixed use of multiple types of cardboards, and the scope of application is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the mold base in this embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing base and the electric motor in this embodiment;

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing base in this embodiment;

[0019] Among them: 1. mold base; 11. support rod; 12. positioning ring; 13. electric motor; 2. fixed seat; 21. through hole; 22. knife lock buckle; 23. rectangular opening; 24. electric push rod; 25. toothed part; 3. knife handle; 31. limit groove; 32. threaded hole; 33. blade; 4. drive motor; 5. electric telescopic rod; 51. threaded section. DETAILED DESCRIPTION

[0020] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0022] Combination Figure 1-3 As shown, a die-cutting machine tool changing mechanism comprises:

[0023] The die base 1 is the main body of the entire mechanism, used to fix and support other components. Its top is movably assembled with the walking mechanism of the die-cutting equipment, and a knife outlet is provided on the bottom surface, thereby driving the knife inside the die base 1 to realize mobile cutting;

[0024] The fixed seat 2 is arranged inside the mold base 1, and a bearing seat is provided at the bottom to enable it to rotate by itself. A plurality of through holes 21 are arranged around the top surface of the fixed seat 2, and each through hole 21 penetrates the fixed seat 2;

[0025] The handle 3 is a columnar structure and is vertically inserted into the through hole 21 of the fixing base 2, and a blade 33 is provided at the bottom end thereof;

[0026] The driving motor 4 is arranged above the fixing seat 2, and an electric telescopic rod 5 is provided on the output end thereof, and the electric telescopic rod 5 is detachably fixedly connected to the top of the handle 3, so as to realize the lifting and lowering adjustment and steering functions of the handle 3.

[0027] Specifically, the fixed seat 2 is a cylindrical structure, and a plurality of through holes 21 are arranged in a circular array. A toothed portion 25 is provided at the edge of its top surface. In order to facilitate the driving of the fixed seat 2 and realize the tool changing function, an electric motor 13 should be arranged inside the mold base 1 and installed on one side of the fixed seat 2. A gear sleeve is provided on the output end of the electric motor 13, and it is transmission-connected to the toothed portion 25.

[0028] Each knife handle 3 is arranged inside the through hole 21. In order to enable it to be pushed out by the electric telescopic rod 5 during the cutting process, the knife handle 3 should maintain a gap with the side wall of the through hole 21, but it is also necessary to ensure that the knife handle 3 does not slide out of the through hole 21. Therefore, a mounting groove is provided at the center of the fixing seat 2, and a knife locking buckle 22 is provided on the bottom surface of the mounting groove;

[0029] The knife lock buckle 22 is a cylindrical structure, and is provided with rectangular openings 23 at its top and bottom. There are a plurality of rectangular openings 23 arranged around the outer wall of the knife lock buckle 22 .

[0030] A hole of the same size as the rectangular opening 23 on the knife lock buckle 22 is opened on the side wall of the through hole 21, and an electric push rod 24 is also provided inside the rectangular opening 23, so that the electric push rod 24 can extend along the side wall of the rectangular opening 23 to the inside of the through hole 21, so that its end is abutted and fixed to the side wall of the knife handle 3.

[0031] At the same time, in order to further improve the fixing effect of the knife lock buckle 22 , a limiting groove 31 matching the size of the end of the electric push rod 24 should be provided on the side wall of the knife handle 3 .

[0032] Based on the above fixing effect on the knife handle 3, in this embodiment, a threaded hole 32 should be opened at the center of the bottom end of the knife handle 3, and then a threaded section 51 adapted to the threaded hole 32 is arranged at the bottom end of the electric telescopic rod 5, and an elastic pad is arranged around the threaded section 51. The electric telescopic rod 5 moves downward so that its threaded section 51 is close to the threaded hole 32, and then the electric telescopic rod 5 is driven to rotate. While the two are threadedly assembled, the electric telescopic rod 5 slowly descends until the bottom end of the elastic pad fits the top surface of the knife handle 3.

[0033] The bottom surface of the die base 1 is located around the knife exit and is surrounded by a plurality of support rods 11, the bottom ends of the plurality of support rods 11 are fixedly connected to a positioning ring 12, a circular hole is provided at the center of the positioning ring 12, when the bottom end of the knife handle 3 extends downward and its stepped surface abuts against the top surface of the positioning ring 12, the blade 33 just passes through the circular hole and extends to the bottom of the positioning ring 12, at the same time, the support rod 11 is composed of two sleeve rods that are movably connected to each other, one of the sleeve rods is also provided with a spring inside and is fixedly connected to the top end of the other sleeve rod, so when the knife handle 3 is retracted into the die base 1, the structure will also retract upward to keep a gap between it and the cardboard; during the cutting process, the positioning ring 12 can fix the cardboard by extrusion, so that the blade 33 is more stable during the cutting process.

[0034] The above structures are all electronically controlled components. Therefore, in order to ensure that they cooperate more closely with each other, a PLC microcontroller can be used inside the mold base 1 for programming control to make the operation more streamlined and stable.

[0035] The control method is that each time the electric motor 4 rotates, one of the through holes 21 can be aligned with the blade, and then the electric telescopic rod 5 extends downward while the driving motor 4 rotates, and the threaded section 51 is fixedly connected with the threaded hole 32 on the top surface of the handle 3. At this time, the electric push rod 24 corresponding to the handle 3 on the locking knife buckle 22 contracts, and the electric telescopic rod 5 continues to extend downward until the blade 33 is below the positioning ring 12, and then it is used for cutting.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A die-cutting machine tool changing mechanism, characterized in that: The invention comprises a die base (1), the interior of the die base (1) is hollow and a fixed base (2) is rotatably mounted at the center of the inner bottom surface, the bottom of the die base (1) is provided with a knife outlet, the top surface of the fixed base (2) is provided with a plurality of through holes (21), and the plurality of through holes (21) extend downward and penetrate the bottom surface of the fixed base (2) so that one of the through holes (21) is aligned with the knife outlet, each of the through holes (21) is provided with a knife handle (3), and the bottom end of the knife handle (3) is provided with a blade (33); a driving motor (4) is also arranged inside the fixed base (2) and above the fixed base (2), an electric telescopic rod (5) is vertically arranged on the output end of the driving motor (4), the bottom of the electric telescopic rod (5) extends vertically downward and is detachably fixedly connected to the top end of one of the knife handles (3).

2. A die-cutting machine tool changing mechanism according to claim 1, characterized in that: The fixing seat (2) is cylindrical, and a plurality of the through holes (21) are arranged in a circular array around the center of the fixing seat (2).

3. A die-cutting machine tool changing mechanism according to claim 2, characterized in that: A bearing seat is also provided between the inner bottom surface of the fixed seat (2) and the mold seat (1), and a toothed portion (25) is provided at the edge of the top surface of the fixed seat (2). An electric motor (13) is provided on one side of the toothed portion (25), and a gear sleeve is provided on the output end of the electric motor (13) and meshes with the toothed portion (25).

4. A die-cutting machine tool changing mechanism according to claim 1, characterized in that: A mounting groove is provided at the center of the fixing seat (2), a knife lock buckle (22) is provided in the mounting groove, the knife lock buckle (22) is a column and has a plurality of rectangular openings (23) arranged around the side wall, the rectangular openings (23) extend toward four sides and respectively pass through the inside of the through hole (21) in a one-to-one correspondence, and an electric push rod (24) is provided inside each of the rectangular openings (23), and a limiting groove (31) adapted to the end of the electric push rod (24) is provided on the side wall of the knife handle (3).

5. A die-cutting machine tool changing mechanism according to claim 1, characterized in that: The top end of the knife handle (3) is provided with a threaded hole (32), the bottom end of the electric telescopic rod (5) is provided with a threaded section (51) adapted to the threaded hole (32), and an elastic pad is arranged around the threaded section (51), and the bottom end of the elastic pad is in contact with the top surface of the knife handle (3).

6. A die-cutting machine tool changing mechanism according to claim 1, characterized in that: The bottom surface of the mold base (1) is surrounded by a plurality of support rods (11), and a positioning ring (12) is fixedly connected to the bottom ends of the plurality of support rods (11). A circular hole is provided at the center of the positioning ring (12). When the bottom end of the knife handle (3) extends downward and its stepped surface abuts against the top surface of the positioning ring (12), the blade (33) just passes through the circular hole and extends to the bottom of the positioning ring (12).

7. A die-cutting machine tool changing mechanism according to claim 6, characterized in that: The support rod (11) is composed of two sleeve rods that are movably sleeved with each other, one of the sleeve rods is provided with a spring inside and is fixedly connected to the top end of the other sleeve rod.

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