A roller knife seat assembly

Abstract

The application discloses a roller cutter seat assembly, which comprises a roller cutter seat body, a bottom roller is arranged in the middle of the inner side of the roller cutter seat body, the two ends of the bottom roller are respectively connected with a bottom roller bearing pre-tightening pressure cover and a bottom roller angular contact bearing through shaft handles, a bottom roller gear is arranged at the end port of one end of the bottom roller, a cutter shaft sliding block guide rod is arranged on the roller cutter seat body, guide rod type cutter shaft sliding blocks are arranged at the two ends of the cutter shaft sliding block guide rod, ladder grooves and screw holes are arranged on the upper and lower sides of the roller cutter seat body, and eight ladder grooves are arranged in total. The roller cutter seat assembly has a cylindrical seat body structure, is arranged in the mounting hole of a die cutting machine base equipment plate, can rotate and move linearly in the axial direction, and thus the lower cutter shaft can be conveniently rotated to the upper part for installation, the convenience of cutter installation is improved, the overall axial adjustment of the cutter seat assembly is realized, and the adjustment and alignment convenience and accuracy of cutters of each cutter seat assembly are improved.

Description

Technical Field

[0001] This invention relates to the field of rotary die-cutting machines, specifically to a roller-type cutter holder assembly. Background Technology

[0002] Currently, components made of plastics, metal foils, graphene, etc. are widely used in the production and manufacturing of products such as electronics, communications, office supplies, medicines, non-telecommunications products, packaging, and daily necessities, requiring precise die-cutting processing.

[0003] Existing die-cutting machines use a steel plate assembly structure for the cutter holder, which is linearly arranged on the machine base and fixedly installed on a horizontal platform. The cutter holder cannot be moved or adjusted. This design has several drawbacks: the assembly and debugging process is complex and difficult to guarantee installation accuracy; the bottom roller's support bearing is a deep groove ball bearing, which cannot be pre-tightened to reduce clearance, resulting in low bottom roller operating accuracy; the cutter shaft is installed inside a rectangular slider, which slides along the groove of the cutter holder's vertical plate, resulting in low precision and affecting the cutter shaft's operating accuracy; and the servo motor connected to a reducer drives the bottom roller, but the inherent gear backlash in the reducer increases transmission error and reduces transmission accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a roller-type cutter holder assembly to solve the problems mentioned in the background art, such as complex assembly and debugging processes, difficulty in ensuring installation accuracy, the use of deep groove ball bearings for the bottom roller support bearings which cannot be pre-tightened to reduce clearance, resulting in low operating accuracy of the bottom roller, the cutter shaft being installed in a rectangular slider that slides along the groove of the cutter holder upright plate, which results in low fitting accuracy and affects the operating accuracy of the cutter shaft, and the inherent gear backlash of the servo motor connected to the reducer driving the bottom roller, which increases transmission error and reduces transmission accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a roller-type tool holder assembly, comprising a roller-type tool holder body, a large copper sleeve for the tool holder, an upper tool shaft, and a lower tool shaft. A bottom roller is installed in the middle of the inner side of the roller-type tool holder body. The two ends of the bottom roller are respectively connected by a shaft handle to a bottom roller bearing preload cover and a bottom roller angular contact bearing. A bottom roller gear is installed at one end of the bottom roller. A tool shaft slider guide rod is installed on the roller-type tool holder body. Guide rod-type tool shaft sliders are installed at both ends of the tool shaft slider guide rod. A direct drive motor is installed at one end of the large copper sleeve for the tool holder, and the direct drive motor is connected to the bottom roller through a coupling. Stepped grooves and screw holes are provided on both the upper and lower sides of the roller-type tool holder body, and a total of eight stepped grooves are provided.

[0006] In a further embodiment, a pressure roller bend shaft is installed in the stepped groove, and a pressure roller bend shaft screw is installed in the screw hole.

[0007] In a further embodiment, the guide rod type cutter shaft slider is provided with an inner hole, and the cutter shaft slider guide rod is slidably connected to the inner hole.

[0008] In a further embodiment, a cutter shaft slider locking nut is installed at one end of both the upper and lower cutter shafts, and a cutter shaft slider clamping screw is installed inside the cutter shaft slider locking nut.

[0009] In a further embodiment, a cutter shaft gear is provided at one end of both the upper and lower cutter shafts, and a cutter shaft slider clamping screw is installed at one end of the guide rod type cutter shaft slider.

[0010] In a further embodiment, the roller cutter holder body is configured as a cylindrical structure, and the roller cutter holder body is installed in the mounting hole of the die-cutting machine base plate.

[0011] In a further embodiment, a small copper sleeve and a large copper sleeve are respectively installed at both ends of the roller-type tool holder body.

[0012] In a further embodiment, an upper tool shaft and a lower tool shaft are installed between the guide rod type tool shaft slider.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The invention provides a roller-type cutter holder assembly, wherein the cutter holder body is a cylindrical structure and is installed in the mounting hole of the die-cutting machine base plate. It can rotate and move axially linearly, thereby facilitating the rotation of the lower cutter shaft to the upper installation, improving the convenience of cutter installation, and realizing the overall axial adjustment of the cutter holder assembly, improving the convenience and accuracy of the adjustment and alignment of the cutters in each cutter holder assembly.

[0015] 2. A roller-type cutter holder assembly of the present invention has angular contact bearings and bottom roller bearing preload covers installed on both sides of the bottom roller shaft extension. By preloading the angular contact bearings, the clearance of the bottom roller bearing is reduced and the rotational accuracy of the bottom roller is improved.

[0016] 3. A roller-type tool holder assembly of the present invention has a tool holder body on which a tool shaft slider guide rod is installed. The inner hole of the guide rod type tool shaft slider slides in cooperation with the tool shaft slider guide rod, thereby improving the accuracy of tool shaft installation.

[0017] 4. The roller cutter holder assembly of this invention has a direct drive motor (DD motor) mounted on a flange on one side of the cutter holder body. It is connected to the bottom roller through a coupling. By utilizing the advantages of the high torque and high precision of the direct drive motor (DD motor), the speed reducer is eliminated, thus eliminating the motion error caused by the speed reducer, thereby improving the running accuracy of the bottom roller and ultimately improving the processing accuracy of the die-cut products.

[0018] 5. The roller-type cutter holder assembly of this invention has eight stepped grooves machined on the upper and lower sides of the cutter holder body to install and fix the pressure roller bending shaft, which can improve the installation accuracy of the bending shaft and thus improve the die-cutting accuracy.

[0019] 6. The invention has a scientific and reasonable structural design, and provides a roller-type tool holder assembly that is compact, easy to operate, easy to assemble, easy to adjust, highly accurate, highly efficient, and widely applicable, and has a high degree of novelty. Attached Figure Description

[0020] Figure 1 This is a schematic front view of the structure of the present invention;

[0021] Figure 2 This is a right view of the structure of the present invention;

[0022] Figure 3 This is a schematic top view of the structure of the present invention;

[0023] Figure 4 This is a front sectional view of the present invention;

[0024] Figure 5 This is a side view of the present invention;

[0025] Figure 6 This is a schematic diagram of the guide rod type cutter shaft slider clamping structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the pressure roller rubber shaft of the present invention.

[0027] In the diagram: 1. Roller-type cutter holder body; 2. Direct drive motor; 3. Coupling; 4. Bottom roller; 5. Large copper sleeve of the cutter holder; 6. Small copper sleeve of the cutter holder; 7. Bottom roller angular contact bearing; 8. Bottom roller bearing preload cover; 9. Upper cutter shaft; 10. Guide rod type cutter shaft slider; 11. Cutter shaft slider guide rod; 12. Cutter shaft slider clamping screw; 13. Cutter shaft slider lock nut; 14. Cutter shaft slider top screw; 15. Pressure roller bent shaft; 16. Bottom roller gear; 17. Lower cutter shaft; 18. Pressure roller bent shaft screw. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Please see Figure 1-7One embodiment of the present invention provides a roller-type tool holder assembly, comprising a roller-type tool holder body 1, a large copper sleeve 5, an upper tool shaft 9, and a lower tool shaft 17. A bottom roller 4 is installed on the inner center of the roller-type tool holder body 1. The two ends of the bottom roller 4 are respectively connected by a bottom roller bearing preload cover 8 and a bottom roller angular contact bearing 7 via shaft handles. A bottom roller gear 16 is installed at one end of the bottom roller 4. By using the bottom roller bearing preload cover 8 and the bottom roller angular contact bearing 7, the clearance of the bottom roller bearing is reduced, thereby improving the rotational accuracy of the bottom roller 4. The roller-type tool holder body 1 is equipped with a tool shaft slider guide rod 11. Both ends of the tool shaft slider guide rod 11 are equipped with guide rod type tool shaft sliders 10. The guide rod type tool shaft sliders 10 can slide on the tool shaft slider guide rod 11 to adjust the distance between the upper tool shaft 9 and the lower tool shaft 17 and the bottom roller 4. One end of the tool holder large copper sleeve 5 is equipped with a direct drive motor 2, and the direct drive motor 2 is connected to the bottom roller 4 through a coupling 3. The upper and lower sides of the roller-type tool holder body 1 are provided with stepped grooves and screw holes, and there are a total of eight stepped grooves.

[0030] Furthermore, a pressure roller bend 15 is installed in the stepped groove, and a pressure roller bend screw 18 is installed in the screw hole. The pressure roller bend 15 is installed by the pressure roller bend screw 18. The stepped groove is used to install and fix the pressure roller bend, which can improve the installation accuracy of the bend and thus improve the die-cutting accuracy.

[0031] Furthermore, the guide rod type cutter shaft slider 10 is provided with an inner hole, and the cutter shaft slider guide rod 11 is slidably connected to the inner hole.

[0032] Furthermore, a cutter shaft slider locking nut 13 is installed at one end of both the upper cutter shaft 9 and the lower cutter shaft 17. A cutter shaft slider clamping screw 12 is installed inside the cutter shaft slider locking nut 13. The cutter shaft slider clamping screw 12 is used to adjust the connection between the upper cutter shaft 9 and the lower cutter shaft 17 and the bearing on the inner side of the guide rod type cutter shaft slider 10.

[0033] Furthermore, cutter shaft gears are provided at one end of both the upper cutter shaft 9 and the lower cutter shaft 17, and a cutter shaft slider clamping screw 14 is installed at one end of the guide rod type cutter shaft slider 10. The cutter shaft slider clamping screw 14 is used to lock and fix the cutting block of the guide hole on the inner side of the guide rod type cutter shaft slider 10.

[0034] Furthermore, the roller cutter holder body 1 is configured as a cylindrical structure, and the roller cutter holder body 1 is installed in the mounting hole of the die-cutting machine base plate.

[0035] Furthermore, a small copper sleeve 6 and a large copper sleeve 5 are respectively installed at both ends of the roller-type tool holder body 1.

[0036] Furthermore, an upper tool shaft 9 and a lower tool shaft 17 are installed between the guide rod type tool shaft slider 10.

[0037] Working principle: In use, the roller cutter holder body 1 is installed in the mounting hole of the die-cutting machine base plate, and the bottom roller 4 is installed in the round hole of the roller cutter holder body 1. The bottom roller angular contact bearing 7 and the bottom roller bearing preload cover 8 are installed at both ends of the bottom roller 4 through the shaft handle. The direct drive motor 2 is installed at one end of the roller cutter holder body 1 and is connected to the bottom roller 4 through the coupling 3. The upper cutter shaft 9 and the lower cutter shaft 17 are installed at the upper and lower parts of the roller cutter holder body 1, respectively. The guide rod type cutter shaft sliders 10 at both ends of the upper cutter shaft 9 and the lower cutter shaft 17 are installed on the cutter shaft slider guide rods 11. The direct drive motor 2 drives the bottom roller 4 to rotate through the coupling 3. The bottom roller 4 is driven by the bottom roller gear 16 and the cutter shaft gears on the upper cutter shaft 9 and the lower cutter shaft 17 through gear transmission, which drives the upper cutter shaft 9 and the lower cutter shaft 17 to rotate.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A roller-type tool holder assembly, comprising a roller-type tool holder body (1), a large copper sleeve for the tool holder (5), an upper tool shaft (9), and a lower tool shaft (17), characterized in that: A bottom roller (4) is installed in the middle of the inner side of the roller cutter holder body (1). The bottom roller (4) is equipped with a bottom roller bearing preload cover (8) and a bottom roller angular contact bearing (7) respectively through a shaft handle at both ends. A bottom roller gear (16) is installed at one end of the bottom roller (4). A cutter shaft slider guide rod (11) is installed on the roller cutter holder body (1). Guide rod type cutter shaft sliders (10) are installed at both ends of the cutter shaft slider guide rod (11). A direct drive motor (2) is installed at one end of the large copper sleeve (5) of the cutter holder. The direct drive motor (2) is connected to the bottom roller (4) through a coupling (3). Step grooves and screw holes are provided on both sides above and below the roller cutter holder body (1). There are a total of eight step grooves. A pressure roller bend shaft (15) is installed in the ladder groove, and a pressure roller bend shaft screw (18) is installed in the screw hole; the guide rod type cutter shaft slider (10) is provided with an inner hole, and the cutter shaft slider guide rod (11) is slidably connected to the inner hole; a cutter shaft slider locking nut (13) is installed at one end of the upper cutter shaft (9) and the lower cutter shaft (17), and a cutter shaft slider clamping screw (12) is installed inside the cutter shaft slider locking nut (13); the roller cutter holder body (1) is set as a cylindrical structure, and the roller cutter holder body (1) is installed in the mounting hole of the die-cutting machine base equipment plate, and can rotate and move axially linearly; a small cutter holder copper sleeve (6) and a large cutter holder copper sleeve (5) are respectively installed at both ends of the roller cutter holder body (1).

2. The roller-type tool holder assembly according to claim 1, characterized in that: Both the upper cutter shaft (9) and the lower cutter shaft (17) are equipped with cutter shaft gears at one end, and a cutter shaft slider tightening screw (14) is installed at one end of the guide rod type cutter shaft slider (10).

3. The roller-type cutter holder assembly according to claim 1, characterized in that: The upper cutter shaft (9) and the lower cutter shaft (17) are installed between the guide rod type cutter shaft slider (10).

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