Die cutting mechanism of digital printing machine

Abstract

The utility model provides a die cutting mechanism of a digital printing machine, which belongs to the technical field of printing machines and comprises a machine cabinet, a main driving roller, a rolling shaft, a machine frame, a tool apron, a transverse cutting tool, a limiting frame, a telescopic spring, a scraper blade, a fixing frame, a limiting disc, a connecting frame and a hobbing cutter group. The main driving roller is mounted at the outer end of the left side of the machine cabinet, and the rolling shaft is mounted at the outer end of the right side of the machine cabinet; the transverse cutting tool can move in the guide groove, the transverse cutting tool is clamped between the two sets of telescopic springs and the two sets of scrapers, after paper is cut by the transverse cutting tool, the transverse cutting tool makes contact with the scrapers in the guide groove, and paper scraps on the side face of the transverse cutting tool are scraped off; and when the transverse cutter continues to cut, the paper scraps on the side face of the transverse cutter are scraped off again, so that the transverse cutter is kept clean after cutting the paper, and the situation that the paper scraps on the surface of the transverse cutter adhere to the paper and affect the printing quality during follow-up cutting is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing machine technical field, especially a kind of digital printing machine die cutting mechanism. BACKGROUND

[0002] Die cutting process is the most frequently used process of packaging printed matter, which is to use die cutting knife to decompose die cutting plate according to the sample group of product planning request, and under the influence of pressure, the printed matter or other plate-shaped blank is cut into the required shape or cutting mark forming process;

[0003] Since continuous batch cutting is usually carried out when cutting paper, the cutting knife of the die cutting mechanism cuts into the paper, and some paper scraps or paper powder will be generated when the paper is cut off. These paper scraps or paper powder will stick to the surface of the cutting knife as the cutting knife cuts down, which will cause the paper scraps or paper powder sticking to the surface of the cutting knife to adhere to the paper during the next cutting of the paper, affecting the quality of subsequent printing of the paper;

[0004] In addition, the adjustment of the die cutting mechanism to the tool is almost carried out in the state of stopping, and when the speed is fast, the batch is small and the slitting width needs to be changed frequently, manual knife adjustment after stopping cannot meet the requirements of online continuous production.

[0005] Therefore, the digital printing machine die cutting mechanism provided by the present application meets the needs. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problems in the above background art and provides a digital printing machine die cutting mechanism.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A digital printing machine die cutting mechanism, comprising: a cabinet, a main drive roller, a winding shaft, a rack, a tool holder, a cross-cutting tool, a limiting frame, a telescopic spring, a scraper, a fixing frame, a limiting disc, a connecting frame and a hob cutter group, the left outer end of the cabinet is provided with a main drive roller, the right outer end of the cabinet is provided with a winding shaft, the inner lower end of the cabinet is provided with a rack, the inner side of the rack is provided with a tool holder, the inner upper end of the tool holder is provided with a cross-cutting tool, the inner upper end of the left side of the cabinet is provided with a limiting frame, the inner side of the limiting frame is provided with a guide groove, the side of the guide groove of the limiting frame is provided with a telescopic spring, the other end of the telescopic spring is provided with a scraper, the inner upper end of the cabinet is provided with a fixing frame, the inner lower end of the fixing frame is provided with a limiting disc, the inner middle of the limiting disc is provided with a connecting frame, and the inner lower end of the connecting frame is provided with a hob cutter group.

[0009] Preferably, the limiting frame is in the shape of a rectangular strip, and the limiting frame is arranged horizontally.

[0010] Preferably, the limiting frame extends transversely to the side surface outer end of the cross cutting tool, and the cross cutting tool extends vertically through the guide groove to the upper end of the limiting frame.

[0011] Preferably, two groups of telescopic springs and scrapers are arranged at the inner lower end of the guide groove, and the two groups of telescopic springs and scrapers are arranged oppositely.

[0012] Preferably, the scrapers are arranged in a trapezoidal shape, and the scrapers are arranged at the side surface of the guide groove and provided with grooves for placing the scrapers and telescopic springs.

[0013] Preferably, the scrapers are made of rubber material, and the telescopic springs are arranged transversely, and the other end of the telescopic spring abuts against the inner wall of the limiting frame.

[0014] Preferably, the limiting disc is olive-shaped, the upper and lower ends of the limiting disc are circular, and the limiting disc gradually expands from top to bottom.

[0015] Preferably, the side surface of the limiting disc is provided with an opening, and the hob cutter group extends downward to the outer lower end of the limiting disc through the connecting frame.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, the cross cutting tool can move in the guide groove, two groups of telescopic springs and scrapers clamp the cross cutting tool in the middle, the cross cutting tool contacts the scrapers in the guide groove after cutting the paper, the paper scraps on the side surface of the cross cutting tool are scraped off, and the cross cutting tool contacts the side surface of the scraper again when the cross cutting tool continues to cut, and the paper scraps on the side surface of the cross cutting tool are scraped off again, so that the cross cutting tool is kept clean after cutting the paper, and the paper scraps on the surface of the cross cutting tool during subsequent cutting are prevented from adhering to the paper to affect the printing quality.

[0018] In the above scheme, the limiting disc is olive-shaped, so that when the tool is adjusted upward, the hob cutter group can be exposed at the outer end of the limiting disc, the hob cutter group is lifted or pressed to adjust the vertical gap between the hob cutter group and the fixing frame, the hob cutter group can be adjusted vertically along the connecting frame, the hob cutter group can be adjusted from the side surface of the limiting disc, compared with the front adjustment, the operation space can be expanded, the tool adjustment is facilitated, and the adjustment risk is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable a person skilled in the relevant art to implement and use the present disclosure.

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 is a specific connection structure diagram of the knife seat and the cross cutting tool of the utility model;

[0022] Figure 3 is a section structure diagram of the limiting frame of the utility model;

[0023] Figure 4 is a specific structure diagram of the scraper of the utility model;

[0024] Figure 5 is a specific connection structure diagram of the hob cutter group of the utility model.

[0025] [Reference signs]

[0026] 1-cabinet; 2-main drive roller; 3-winding shaft; 4-frame; 5-knife seat; 6-cross cutting tool; 7-limiting frame; 8-extension spring; 9-scraper; 10-fixing frame; 11-limiting disc; 12-connecting frame; 13-hob cutter group; 701-guide groove.

[0027] As shown in the drawings, in order to clearly realize the structure of the embodiments of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment, and the ordinary skilled in the art can adjust or modify these devices and environment according to specific needs, and the adjustment or modification still includes in the scope of the appended claims. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0030] As Figure 1 , Figure 2 ,Figure 3 、 Figure 4 and Figure 5 The utility model discloses a digital printing machine die cutting mechanism as shown in the figure, the embodiment provides, including: cabinet 1, main drive roll 2, winding shaft 3, frame 4, tool holder 5, cross cutting tool 6, limit frame 7, telescopic spring 8, scraper 9, fixed frame 10, limit disc 11, connecting frame 12 and hob cutter group 13, the left side outer end of cabinet 1 installs main drive roll 2, the right side outer end of cabinet 1 installs winding shaft 3, the inside lower extreme of cabinet 1 installs frame 4, the inside of frame 4 installs tool holder 5, the inside upper extreme of tool holder 5 installs cross cutting tool 6, the inside of limit frame 7 is provided with guide slot 701, the side of guide slot 701 of limit frame 7 installs telescopic spring 8, the other end of telescopic spring 8 installs scraper 9, the inside upper extreme of cabinet 1 installs fixed frame 10, the inside lower extreme of fixed frame 10 installs limit disc 11, the inside middle of limit disc 11 installs connecting frame 12, the inside lower extreme of connecting frame 12 installs hob cutter group 13.

[0031] In the embodiment, the limit frame 7 is rectangular and long strip-shaped, and the limit frame 7 is arranged horizontally.

[0032] In the embodiment, the limit frame 7 extends horizontally to the side outer end of the cross cutting tool 6, and the cross cutting tool 6 extends vertically through the guide slot 701 to the upper end of the limit frame 7, and the cross cutting tool 6 can move in the guide slot 701.

[0033] In the embodiment, two groups of telescopic springs 8 and scrapers 9 are arranged at the inside lower end of the guide slot 701, and the two groups of telescopic springs 8 and scrapers 9 are arranged oppositely, and the two groups of telescopic springs 8 and scrapers 9 clamp the cross cutting tool 6 in the middle.

[0034] In the embodiment, the scraper 9 is arranged in a trapezoidal shape, and the side of the guide slot 701 where the scraper 9 is located is provided with a groove for placing the scraper 9 and the telescopic spring 8, and after the cross cutting tool 6 cuts the paper, the cross cutting tool 6 contacts the scraper 9 in the guide slot 701 to scrape off the paper scraps on the side of the cross cutting tool 6, and when the cross cutting tool 6 continues to cut, the cross cutting tool 6 again contacts the side of the scraper 9 to scrape off the paper scraps on the side of the cross cutting tool 6 again, so that the cross cutting tool 6 remains clean after cutting the paper, and the paper scraps on the surface of the cross cutting tool 6 during subsequent cutting do not stick to the paper to affect the printing quality.

[0035] In the embodiment, the scraper 9 is made of rubber material, and the telescopic spring 8 is arranged horizontally, and the other end of the telescopic spring 8 abuts against the inner wall of the limit frame 7, and after the scraper 9 contacts the cross cutting tool 6, the scraper 9 can be squeezed outward, and the scraper 9 moves and shrinks to the side of the guide slot 701 through the telescopic spring 8.

[0036] In the embodiment, the limiting disc 11 is olive-shaped, the upper and lower ends of the limiting disc 11 are circular, and the limiting disc 11 gradually expands from top to bottom, so that the hob cutter set 13 can be exposed at the outer end of the limiting disc 11 when the cutter is adjusted upward, the hob cutter set 13 is lifted or pressed down to adjust the vertical gap between the hob cutter set 13 and the fixing frame 10, and the cutter adjustment is facilitated.

[0037] In the embodiment, the side surface of the limiting disc 11 is provided with an opening, the hob cutter set 13 extends to the outer lower end of the limiting disc 11 through the connecting frame 12, the hob cutter set 13 can be vertically adjusted along the connecting frame 12, the hob cutter set 13 can be adjusted from the side surface of the limiting disc 11, the operation space is enlarged, and the adjustment risk is reduced compared with front adjustment.

[0038] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit have not been explained in detail.

[0039] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model.

Claims

1. A die-cutting mechanism for a digital printing machine, characterized in that, include: The machine includes a cabinet (1), a main drive roller (2), a take-up shaft (3), a frame (4), a knife holder (5), a cross-cutting blade (6), a limit frame (7), a telescopic spring (8), a scraper (9), a fixing frame (10), a limit plate (11), a connecting frame (12), and a roller cutter assembly (13). The main drive roller (2) is installed at the outer left side of the cabinet (1), and the take-up shaft (3) is installed at the outer right side of the cabinet (1). The frame (4) is installed at the lower inner end of the cabinet (1), and the knife holder (5) is installed on the inner side of the frame (4). The cross-cutting blade (6) is installed at the upper inner side of the knife holder (5). The cabinet (1) is equipped with a limit frame (7) at the upper left side inside. The limit frame (7) has a guide groove (701) on its inner side. A telescopic spring (8) is installed on the side of the guide groove (701) of the limit frame (7). A scraper (9) is installed at the other end of the telescopic spring (8). The cabinet (1) is equipped with a fixing frame (10) at the upper inside. The fixing frame (10) is equipped with a limit plate (11) at the lower inner side. The limit plate (11) is equipped with a connecting frame (12) at the middle inner side. The connecting frame (12) is equipped with a hobbing cutter set (13) at the lower inner side.

2. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The limiting frame (7) is rectangular and horizontally positioned.

3. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The limiting frame (7) extends laterally to the outer end of the side of the cross-cutting tool (6), and the cross-cutting tool (6) extends vertically through the guide groove (701) to the upper end of the limiting frame (7).

4. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: Two sets of telescopic springs (8) and scrapers (9) are provided at the lower inner end of the guide groove (701), and the two sets of telescopic springs (8) and scrapers (9) are arranged opposite to each other.

5. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The scraper (9) is trapezoidal in shape, and the scraper (9) is located on the side of the guide groove (701) with a groove for placing the scraper (9) and the telescopic spring (8).

6. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The scraper (9) is made of rubber, and the telescopic spring (8) is arranged horizontally, with the other end of the telescopic spring (8) abutting against the inner wall of the limiting frame (7).

7. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The limiting disk (11) is olive-shaped, with both the upper and lower ends of the limiting disk (11) being round, and the limiting disk (11) gradually expands from top to bottom.

8. The die-cutting mechanism of the digital printing machine according to claim 1, characterized in that: The side of the limiting plate (11) is provided with an opening, and the hobbing cutter group (13) extends downward to the lower outer end of the limiting plate (11) through the connecting frame (12).

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