Novel slitting knife

By designing a slidingly connected upper and lower tool mechanism, the problem of the unadjustable fixation of the existing slitting knife is solved, and flexible adjustment of the material and improvement of cutting accuracy are achieved, the scope of application is expanded and the cutting efficiency is improved.

CN222819115UActive Publication Date: 2025-05-02QINGZHOU MULTI-FLEX MASCH CO LTD
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Patent Information

Application Number
CN202421787602.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-05-02
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

The upper and lower blades of existing slitting knives are usually fixed and unadjustable, resulting in limited cutting accuracy and cannot flexibly adapt to the cutting needs of different materials or materials of different thicknesses.

Method used

By designing a slidably connected upper and lower tool mechanism, the support seats of the upper and lower tool shafts are slidably connected parallel to the frame along the axis direction, the distance adjustment and clearance adjustment of the upper and lower tool are realized, and the tool replacement and tool alignment are quickly changed.

Benefits of technology

It realizes flexible adjustment of materials by slitting knives, expands the scope of application, improves cutting accuracy and efficiency, and can quickly adapt to cutting needs of different materials and thicknesses.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222819115U_ABST
    Figure CN222819115U_ABST
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Abstract

The utility model relates to the technical field of slitting devices, in particular to a novel slitting knife. The novel slitting knife comprises an upper knife mechanism and a lower knife mechanism, the upper knife mechanism comprises an upper knife shaft and an upper knife arranged on the upper knife shaft, and the lower knife mechanism comprises a lower knife shaft and a lower knife arranged on the lower knife shaft; the two ends of the upper cutter shaft and the two ends of the lower cutter shaft are in parallel sliding connection with the machine frame in the axis direction of the upper cutter shaft and the lower cutter shaft through supporting seats, and the upper cutter shaft is in vertical sliding connection with the supporting seats through upper cutter shaft supporting seats. According to the technical scheme, the supporting seats of the upper cutter and the lower cutter of the novel slitting cutter are in parallel sliding connection with the rack in the axis direction of the upper cutter shaft and the lower cutter shaft, so that the whole slitting cutter can be transversely adjusted relative to a printing material, and the application range is widened; the upper cutter shaft supporting seat is connected with the supporting seat in an up-and-down sliding mode, the distance between the upper cutter and the lower cutter can be adjusted, and therefore the cutter can be rapidly replaced.
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Description

Technical Field

[0001] The present application relates to the technical field of slitting devices, and in particular to a new type of slitting knife. Background Art

[0002] Slitting is an indispensable process in composite packaging. With the increasing application of automated packaging equipment, the requirements for slitting specifications and slitting quality are getting higher and higher. Different materials have put forward quite high requirements for materials. The structure of the slitting knife usually involves a knife alignment system between the upper knife and the lower knife. This system is designed to ensure precise alignment between the blades so that the material can be cut effectively. The upper knife part usually includes a blade mounted on the knife holder, which is responsible for the actual cutting operation. The lower knife is usually located below the upper knife. Its main function is to support the material and help ensure that the material remains flat during cutting. At present, the upper and lower knives of the slitting knife are usually fixed and non-adjustable. It is impossible to make minor adjustments during cutting, which limits the cutting accuracy and cannot flexibly adapt to the cutting needs of different materials or materials of different thicknesses. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the present application provides a new slitting knife. The present application is implemented through the following technical solutions: the new slitting knife comprises: an upper knife mechanism and a lower knife mechanism, the upper knife mechanism comprises an upper knife shaft and an upper knife arranged on the upper knife shaft, the lower knife mechanism comprises a lower knife shaft and a lower knife arranged on the lower knife shaft;

[0004] The two ends of the upper knife shaft and the lower knife shaft are connected to the frame in a parallel sliding manner along the axis direction of the upper knife shaft and the lower knife shaft through a support seat, and the upper knife shaft is connected to the support seat in an up and down sliding manner through an upper knife shaft support seat.

[0005] Preferably, both ends of the upper cutter shaft are slidably connected to the upper cutter shaft support seat along the axial direction of the upper cutter shaft;

[0006] One end of the upper cutter shaft is connected to a sliding seat via a bearing, and the sliding seat is slidably connected to the upper cutter shaft support seat along a direction parallel to the axis of the upper cutter shaft.

[0007] Preferably, the support seat is slidably connected to the frame via a slider and a slide rail, and a first screw mechanism is connected between the support seat and the frame, and the support seat is driven to move when the screw in the first screw mechanism is rotated.

[0008] Preferably, the upper knife shaft support seat is connected to the support seat via a second screw mechanism, and the upper knife shaft support seat is driven to move when the screw in the second screw mechanism is rotated.

[0009] Preferably, a third screw mechanism is connected between the slide seat and the upper knife shaft support seat, and the slide seat is driven to move when the screw in the third screw mechanism is rotated.

[0010] Compared with the known public technologies, the technical solution provided by this application has the following beneficial effects:

[0011] The support seats of the upper and lower knives of the new slitting knife of the technical solution of the present application are connected to the frame in a parallel sliding manner along the axial direction of the upper knife shaft and the lower knife shaft, so that the entire slitting knife can be adjusted laterally relative to the printed material, thereby expanding the scope of application; the upper knife shaft support seat is connected to the support seat in an up and down sliding manner, so that the distance between the upper knife and the lower knife can be adjusted, thereby allowing for rapid replacement of the knives; one end of the upper knife shaft is connected to a sliding seat via a bearing, and the sliding seat is connected to the upper knife shaft support seat in a sliding manner parallel to the axial direction of the upper knife shaft, so that the gap between the upper knife and the lower knife can be adjusted, allowing for rapid knife alignment and saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the structure of the novel slitting knife of the present application;

[0014] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0015] In the above picture:

[0016] 100-upper cutter shaft; 101-upper cutter shaft support seat; 102-sliding seat; 103-second screw mechanism; 104-third screw mechanism;

[0017] 200-lower knife shaft;

[0018] 300-support seat; 301-first screw mechanism. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] like Figure 1-2As shown, the novel slitting knife comprises an upper knife mechanism and a lower knife mechanism. The upper knife mechanism comprises an upper knife shaft 100 and an upper knife arranged on the upper knife shaft, and the lower knife mechanism comprises a lower knife shaft 200 and a lower knife arranged on the lower knife shaft.

[0021] The ends of the upper blade shaft 100 and the lower blade shaft 200 are connected to the frame in a sliding manner parallel to the axis direction of the upper blade shaft 100 and the lower blade shaft 200 through the support seat 300, and the upper blade shaft 100 is connected to the support seat 300 in an up and down sliding manner through the upper blade shaft support seat 101.

[0022] Specifically, the support seat 300 is slidably connected to the frame through a slider and a slide rail, and a first screw mechanism 301 is connected between the support seat 300 and the frame. When the screw in the first screw mechanism 301 is rotated, the support seat 300 is driven to move, so that the entire slitting knife can be adjusted laterally relative to the printed material, thereby expanding the scope of application. The upper knife shaft support seat 101 is connected to the support seat 300 through a second screw mechanism 103. When the screw in the second screw mechanism 103 is rotated, the upper knife shaft support seat 101 is driven to move, so that the distance between the upper knife and the lower knife can be adjusted, so that the knife can be quickly replaced.

[0023] In this embodiment, the first screw mechanism 301 is driven manually. One end of the screw of the first screw mechanism 301 is connected to a hand wheel. The screw is rotated by turning the hand wheel. The screw of the first screw mechanism 301 is rotatably connected to the frame through a bearing, and is threadedly connected to the support seat 300. When the screw of the first screw mechanism 301 is rotated, the support seat 300 slides. Similarly, one end of the second screw mechanism 103 is rotatably connected to the upper knife shaft support seat 101 through a bearing, and the other end can be connected to a hand wheel for driving. The screw of the second screw mechanism 103 is threadedly connected to the support seat 300. When the screw of the second screw mechanism 103 rotates and rises and falls, the upper knife shaft support seat 101 is driven to slide up and down on the support seat 300.

[0024] As a further solution of this embodiment, the two ends of the upper cutter shaft 100 are connected to the upper cutter shaft support seat 101 in a sliding manner along the axis direction of the upper cutter shaft 100; one end of the upper cutter shaft 100 is connected to a slide seat 102 through a bearing, and the slide seat 102 is connected to the upper cutter shaft support seat 101 in a sliding manner parallel to the axis of the upper cutter shaft 100, so as to adjust the clearance of the upper cutter relative to the lower cutter, quickly align the cutter, and save time. The connection relationship between the slide seat 102 and the upper cutter shaft support seat 101 is not shown in the figure. Specifically, a slider can be installed on one side of the slide seat 102, and a linear slide rail can be installed on the upper cutter shaft support seat 101. The linear slide rail is parallel to the axis of the upper cutter shaft 100 and cooperates with the slider installed on one side of the slide seat 102.

[0025] A third screw mechanism 104 is connected between the slide 102 and the upper knife shaft support seat 101. When the screw in the third screw mechanism 104 is rotated, the slide 102 is driven to move. The screw of the third screw mechanism 104 is threadedly connected to the upper knife shaft support seat 101, and the screw of the third screw mechanism 104 is rotatably connected to the slide 102 through a bearing. Similarly, the screw of the third screw mechanism 104 can be driven by a hand wheel to rotate in a mirror image, so that the slide 102 moves, thereby driving the upper knife shaft to move and perform tool alignment.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. New slitting knife, including: An upper knife mechanism and a lower knife mechanism, the upper knife mechanism comprising an upper knife shaft (100) and an upper knife arranged on the upper knife shaft, and the lower knife mechanism comprising a lower knife shaft (200) and a lower knife arranged on the lower knife shaft; The invention is characterized in that the two ends of the upper knife shaft (100) and the lower knife shaft (200) are connected to the frame in a sliding manner parallel to the axial direction of the upper knife shaft (100) and the lower knife shaft (200) through a support seat (300), and the upper knife shaft (100) is connected to the support seat (300) in an upward and downward sliding manner through an upper knife shaft support seat (101).

2. The new slitting knife according to claim 1 is characterized in that: Both ends of the upper knife shaft (100) are slidably connected to the upper knife shaft support seat (101) along the axial direction of the upper knife shaft (100); One end of the upper knife shaft (100) is connected to a sliding seat (102) via a bearing, and the sliding seat (102) is slidably connected to the upper knife shaft support seat (101) along a direction parallel to the axis of the upper knife shaft (100).

3. The new slitting knife according to claim 1 is characterized in that: The support seat (300) is slidably connected to the frame via a slider and a slide rail, and a first screw mechanism (301) is connected between the support seat (300) and the frame, and when the screw in the first screw mechanism (301) is rotated, the support seat (300) is driven to move.

4. The new slitting knife according to claim 1 is characterized in that: The upper knife shaft support seat (101) is connected to the support seat (300) via a second screw mechanism (103), and when the screw in the second screw mechanism (103) is rotated, the upper knife shaft support seat (101) is driven to move.

5. The new slitting knife according to claim 2 is characterized in that: A third screw mechanism (104) is connected between the slide seat (102) and the upper knife shaft support seat (101), and when the screw in the third screw mechanism (104) is rotated, the slide seat (102) is driven to move.