Rotary pressing die cutter with nano-diamond coating

Abstract

The utility model relates to the technical field of circular pressing die cutters, in particular to a circular pressing die cutter with a nano-diamond coating, which is characterized in that a flexible cutter treated by the nano-diamond coating has better wear resistance and longer service life than a cutter die treated by normal nickel plating and chromium plating, and the reliability is improved; comprising connecting shafts, a circular pressing die body and cutter plates, the middles of the left side and the right side of the circular pressing die body are connected with the inner ends of the connecting shafts respectively, the cutter plates are arranged on the outer side of the circular pressing die body, the oil removing layers are arranged on the outer sides of the cutter plates, and the nano-diamond coatings are further arranged on the outer sides of the cutter plates on the basis of the oil removing layers. Restraint mechanisms are arranged on the outer sides of the two sets of connecting shafts.

Description

Technical Field

[0001] The utility model relates to the technical field of circular die cutting knives, in particular to a circular die cutting knives with a nano diamond coating. Background Art

[0002] The circular die-cutting roller was first used in the printing industry, especially in the cigarette packaging industry. It is a high-efficiency die-cutting tool that replaces the flat-press punching process.

[0003] The surface treatment of the flexible die determines the service life of the die. Traditional surface coatings include nickel plating, chrome plating, etc., but the side die cutter with such surface treatment has insufficient wear resistance and a short service life. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a flexible knife treated with a nano-diamond coating, which can achieve better wear resistance and service life than normal nickel-plated and chrome-plated knife dies, and improve reliability.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nano-diamond coated round die cutting knife, comprising a connecting shaft, a round die body and a knife plate, wherein the middle parts of the left and right sides of the round die body are respectively connected to a group of inner ends of the connecting shafts, and multiple groups of knife plates are arranged on the outside of the round die body, and also include an oil removal layer and a nano-diamond coating. The outside of the knife plate is provided with an oil removal layer, and the outside of the knife plate is also provided with a nano-diamond coating on the basis of the oil removal layer, and a constraint mechanism is arranged on the outside of the two groups of connecting shafts.

[0008] Preferably, the constraint mechanism includes an external thread, a collar, a ball, an outer ring, a positioning block and a fixing nut. The outer side of each group of connecting shafts is respectively provided with an external thread. The collar is movably sleeved on the outer side of the external thread on the connecting shaft, and the left and right sides of the collar are respectively screwed and fixed by a group of fixing nuts. The outer side of the collar is rotatably connected to the inner side of the outer ring through multiple groups of ball rolling constraints, and a positioning block is provided on the outer side of the outer ring.

[0009] Preferably, it also includes a relaxation washer, and the left and right sides of the ring are respectively connected to the inner sides of a group of relaxation washers.

[0010] Preferably, it also includes an oiling nozzle, and one side of the outer end of each group of outer rings is respectively connected to the inner side of a group of oiling nozzles.

[0011] Preferably, it also includes an oil filling cap, and the outer side of the oil filling nozzle and the inner side of the oil filling cap are detachably mounted.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a round die-cutting knife with a nano-diamond coating, having the following beneficial effects:

[0014] First, perform degreasing treatment, clean the surface of the knife plate with pure water to form a degreased layer. Under the temperature condition of 80 degrees, spray nano-diamond coating, cool and maintain for 5 hours to ensure that the coating is firmly bonded to the surface of the knife plate, forming a nano-diamond coating. When in use, it is fixed at the corresponding position by a restraint mechanism. The round die body and the connecting shaft rotate synchronously, and die-cutting is performed by the knife plate. The flexible knife after nano-diamond coating treatment can achieve better wear resistance and service life than the knife dies treated with normal nickel plating and chromium plating, improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric view of the structural schematic diagram of the present utility model;

[0016] Figure 2 For the present utility model Figure 1 front view;

[0017] Figure 3 For the present utility model Figure 1 left view;

[0018] Figure 4 For the present utility model Figure 1 A enlarged structural schematic diagram.

[0019] Reference numerals in the drawings: 1, connecting shaft; 2, round die body; 3, knife plate; 4, degreased layer; 5, nano-diamond coating; 6, external thread; 7, collar; 8, ball; 9, outer ring; 10, positioning block; 11, fixing nut; 12, lock washer; 13, grease nipple; 14, grease cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment

[0022] Please refer to Figure 1-4A nano-diamond coated round die cutting knife comprises a connecting shaft 1, a round die body 2 and a knife plate 3. The middle parts of the left and right sides of the round die body 2 are respectively connected to the inner ends of a group of connecting shafts 1. Multiple groups of knife plates 3 are arranged on the outside of the round die body 2. The knife plates 3 also include an oil removal layer 4 and a nano-diamond coating 5. The outside of the knife plates 3 is provided with an oil removal layer 4. The knife plates 3 are further provided with a nano-diamond coating 5 on the basis of the oil removal layer 4. Constraint mechanisms are arranged on the outsides of the two groups of connecting shafts 1. The flexible knife treated with the nano-diamond coating can achieve better wear resistance and service life than the knife dies treated with normal nickel plating and chrome plating, thereby improving reliability.

[0023] The constraint mechanism includes an external thread 6, a collar 7, a ball 8, an outer ring 9, a positioning block 10 and a fixing nut 11. The outer side of each group of connecting shafts 1 is respectively provided with an external thread 6. The collar 7 is movably sleeved on the outer side of the external thread 6 on the connecting shaft 1, and the left and right sides of the collar 7 are respectively screwed and fixed by a group of fixing nuts 11. The outer side of the collar 7 is rotationally connected to the inner side of the outer ring 9 through rolling constraints of multiple groups of balls 8. A positioning block 10 is provided on the outer side of the outer ring 9; the collar 7 is fixed by two groups of fixing nuts 11 that are movably screwed toward each other, so that the collar 7, the ball 8 and the outer ring 9 can be fixed as a whole relative to the connecting shaft 1, and then the two groups of outer rings 9 can be fixed at corresponding positions through the positioning blocks 10. During operation, under the fixation of the ball 8, the collar 7 can be rotated through the rolling constraints of multiple groups of balls 8, and then the fixed connection between the collar 7 and the connecting shaft 1 makes the circular pressing die body 2 rotate, and the die plate 3 realizes die cutting.

[0024] It also includes a loosening washer 12, and the left and right sides of the ring 7 are respectively connected to the inner side of a group of loosening washers 12; the fixing nut 11 can be elastically supported outwards through the loosening washers 12 to prevent the two groups of fixing nuts 11 from being screwed loose when the position of the ring 7 is fixed, thereby improving stability.

[0025] It also includes an oiling nozzle 13, and one side of the outer end of each group of outer rings 9 is respectively connected to the inner side of a group of oiling nozzles 13; oil can be injected into the inner wall of the outer ring 9 through the oiling nozzles 13, which is convenient for lubrication and maintenance.

[0026] It also includes an oil filling cap 14, and the outer side of the oil filling nozzle 13 and the inner side of the oil filling cap 14 are detachably installed; after the oil filling cap 14 is installed on the outer side of the oil filling nozzle 13, the inside of the oil filling nozzle 13 can be sealed and protected to avoid dust clogging and improve reliability.

[0027] In summary, when a circular die-cutting knife with a nano-diamond coating is used, it is first degreased, and the surface of the blade 3 is cleaned with pure water to form an oil-removing layer 4. At a temperature of 80 degrees, the nano-diamond coating is sprayed, cooled and maintained for 5 hours to ensure that the coating is firmly bonded to the surface of the blade 3 to form a nano-diamond coating 5. The collar 7 is fixed by two sets of fixing nuts 11 that are movably screwed in opposite directions, and the collar 7 is fixed by loosening the washer 12 to elastically support it outward to prevent it from loosening, so that the collar 7, the ball 8, and the outer ring 9 are integrally relative to the connecting shaft. 1 is fixed in position, and then the two groups of outer rings 9 can be fixed in corresponding positions through the positioning blocks 10. During operation, under the fixation of the balls 8, the sleeve ring 7 can be rotated by the rolling constraints of the multiple groups of balls 8, and then the sleeve ring 7 is fixedly connected with the connecting shaft 1 to make the circular die body 2 rotate, and the die plate 3 realizes die cutting. In addition, oil can be injected into the inner wall of the outer ring 9 through the oiling nozzle 13, which is convenient for lubrication and maintenance. After the oiling cap 14 is installed on the outer side of the oiling nozzle 13, the inside of the oiling nozzle 13 can be sealed and protected to avoid dust blockage and improve reliability.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nano-diamond coated circular die cutting knife, comprising a connecting shaft (1), a circular die body (2) and a knife plate (3), wherein the middle of the left and right sides of the circular die body (2) are respectively connected to the inner ends of a group of connecting shafts (1), and a plurality of knife plates (3) are arranged on the outer side of the circular die body (2), characterized in that: It also comprises an oil removal layer (4) and a nano-diamond coating (5); the outer side of the knife plate (3) is provided with the oil removal layer (4); the outer side of the knife plate (3) is further provided with a nano-diamond coating (5) on the basis of the oil removal layer (4); and the outer sides of the two groups of connecting shafts (1) are both provided with a restraining mechanism.

2. The circular die cutter with nano-diamond coating according to claim 1, characterized in that: The constraint mechanism comprises an external thread (6), a collar (7), a ball (8), an outer ring (9), a positioning block (10) and a fixing nut (11); the outer side of each group of connecting shafts (1) is respectively provided with an external thread (6); the collar (7) is movably sleeved on the outer side of the external thread (6) on the connecting shaft (1); the left and right sides of the collar (7) are respectively screwed and fixed by a group of fixing nuts (11); the outer side of the collar (7) is rotationally connected to the inner side of the outer ring (9) by rolling constraints of multiple groups of ball (8); and the outer side of the outer ring (9) is provided with a positioning block (10).

3. The circular die cutter with nano-diamond coating according to claim 2, characterized in that: It also comprises a loosening gasket (12), and the left and right sides of the collar (7) are respectively connected to the inner sides of a group of loosening gaskets (12).

4. The circular die cutter with nano-diamond coating according to claim 2, characterized in that: It also includes oil injection nozzles (13), and one side of the outer end of each group of outer rings (9) is respectively connected to the inner side of a group of oil injection nozzles (13).

5. The circular die cutter with nano-diamond coating according to claim 4, characterized in that: It also comprises an oil filling cap (14), and the outer side of the oil filling nozzle (13) and the inner side of the oil filling cap (14) are detachably mounted.

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