Self-driven slitting knife

Abstract

The utility model relates to the field of material cutting, in particular to a self-driven slitting knife. The device comprises a main body support, a pressure displayer and a knife leaning mechanism are arranged on the main body support, the knife leaning mechanism is hinged to one end of a first transmission part and one end of a second transmission part, the other end of the first transmission part and the other end of the second transmission part are hinged to a cutter assembly, and the first transmission part is parallel to the second transmission part; the knife leaning mechanism comprises an electromagnetic piston assembly and a pressure sensing assembly; the electromagnetic piston assembly abuts against the first transmission part, drives the first transmission part to rotate and drives the cutter assembly to move so as to abut against the lower cutter blade, the second transmission part rotates synchronously and extrudes the pressure sensing assembly, and the pressure sensing assembly is electrically connected with the pressure displayer so as to display pressure. The combination of the knife leaning mechanism and the pressure display can display the magnitude of the knife leaning force in real time while slowly leaning the knife, so that repeated debugging is not needed, and data recording is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of material cutting, in particular to a self-driven slitting knife. Background Art

[0002] A slitting knife generally refers to a tool used to cut materials (such as paper, plastic, metal sheets, food, etc.) into required sizes or shapes, usually including an upper blade (also called a moving blade) and a lower cutting blade (also called a fixed blade or a bottom blade). This design allows the upper blade to move relative to the lower cutting blade during the cutting process to achieve the cutting of materials.

[0003] The existing self-rotating pneumatic slitting knife has the following disadvantages: when slitting thin coils, it is impossible to accurately know how much the contact force applied when the slitting knife actually touches the lower cutting knife is appropriate, nor can it know what the contact force value is. It is necessary to debug back and forth, and the data cannot be recorded. Summary of the Utility Model

[0004] In order to overcome the above problems, the utility model provides a self-driven slitting knife. The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A self-driven slitting knife includes a main body bracket, on which a pressure display and a knife contact mechanism are arranged. The knife contact mechanism is hinged to one ends of a first transmission member and a second transmission member. The other ends of the first transmission member and the second transmission member are both hinged to a cutter assembly. The first transmission member and the second transmission member are parallel; the knife contact mechanism includes an electromagnetic piston assembly and a pressure sensing assembly; the electromagnetic piston assembly abuts against and drives the first transmission member to rotate and drives the cutter assembly to move to contact the lower cutting blade, and the second transmission member rotates synchronously and presses the pressure sensing assembly. The pressure sensing assembly is electrically connected to the pressure display to display the pressure.

[0006] Further, the pressure sensing assembly includes a pressure sensor and a compression spring. The pressure sensor is electrically connected to the pressure display. One end of the compression spring abuts against the pressure sensor, and the other end abuts against the second transmission member.

[0007] Further, the number of compression springs is greater than or equal to 2. An induction pressure block is arranged between the pressure sensor and the compression springs, and one ends of the compression springs are all connected to the induction pressure block.

[0008] Further, the main body bracket is connected to the knife contact mechanism through a three-way air valve rod to control the up and down movement of the knife contact mechanism to adjust the up and down position of the cutter assembly.

[0009] Further, a linear slider is arranged at the back of the main body bracket to install the slitting knife on the guide rail to slide left and right.

[0010] Further, a brake assembly is also arranged on the main body bracket to limit the sliding of the slitting knife along the guide rail.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The slitting knife includes a main body bracket, on which a pressure display and a knife-approaching mechanism are arranged. The knife-approaching mechanism is hinged to one ends of a first transmission member and a second transmission member. The other ends of the first transmission member and the second transmission member are both hinged to a cutter assembly. The first transmission member and the second transmission member are parallel. The knife-approaching mechanism includes an electromagnetic piston assembly and a pressure sensing assembly. The electromagnetic piston assembly abuts against and drives the first transmission member to rotate and drives the cutter assembly to move to approach the lower cutting blade. The second transmission member rotates synchronously and presses the pressure sensing assembly. The pressure sensing assembly is electrically connected to the pressure display to display the pressure. The combination of the knife-approaching mechanism and the pressure display can display the magnitude of the knife-approaching force in real time while slowly approaching the knife, without the need for back-and-forth debugging, which is convenient for data recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and specific embodiments, where:

[0014] Figure 1 is the perspective view of the present utility model Figure 1 ;

[0015] Figure 2 is the perspective view of the present utility model Figure 2 ;

[0016] Figure 3 is the exploded view of the present utility model;

[0017] Figure 4 is the perspective view of the knife-approaching mechanism;

[0018] Figure 5 is the perspective view of the electromagnetic piston assembly and the pressure sensing assembly.

[0019] Reference Signs in the Drawings:

[0020] 100, main body bracket; 101, linear slider; 102, brake assembly;

[0021] 200, pressure display;

[0022] 300, knife-approaching mechanism; 301, first transmission member; 302, second transmission member; 303, electromagnetic piston assembly; 304, pressure sensor; 305, compression spring; 306, induction pressing block;

[0023] 400, cutter assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To better understand the purpose, structure, and function of the present utility model, the following further describes in detail the specific embodiments of the "self-driven slitting knife" of the present utility model with reference to the accompanying drawings.

[0025] See Figures 1 - 5 , in this embodiment, the slitting knife includes a main body bracket 100, on which a pressure display 200 and a knife-leaning mechanism 300 are provided. One end of the knife-leaning mechanism 300 is hinged to a first transmission member 301 and a second transmission member 302. The other ends of the first transmission member 301 and the second transmission member 302 are both hinged to a cutter assembly 400. The first transmission member 301 and the second transmission member 302 are parallel to form a link mechanism with a parallelogram structure; the knife-leaning mechanism 300 includes an electromagnetic piston assembly 303 and a pressure sensing assembly; after the electromagnetic piston assembly 303 is ventilated, it elongates and abuts against the first transmission member 301, driving the upper end of the first transmission member 301 to rotate counterclockwise to the left relative to the main body bracket 100, and driving the cutter assembly 400 to move to the left, so that the cutter assembly 400 and the lower cutting blade are leaned against each other. The second transmission member 302 rotates synchronously and presses the pressure sensing assembly, and the pressure sensing assembly displays the leaning pressure in real time through the pressure display 200. This slitting knife uses the parallelogram link structure of the first transmission member 301 and the second transmission member 302 to convert the pressure of the electromagnetic piston assembly 303 into the pressure of the pressure sensing assembly, and then transmits the pressure to the pressure display 200, quantifying and displaying the leaning force, facilitating the recording of the leaning force value, without the need for back-and-forth debugging, saving production time.

[0026] Further see Figure 4 and Figure 5 , in this embodiment, the pressure sensing assembly includes a pressure sensor 304 and a compression spring 305. The pressure sensor 304 is electrically connected to the pressure display 200. One end of the compression spring 305 abuts against the pressure sensor 304, and the other end abuts against the second transmission member 302. The pressure of the second transmission member 302 is conducted to the pressure sensor 304 through the compression spring 305. It should be noted that 2 compression springs 305 are used in this embodiment. In order to ensure that the pressure transmitted by the compression springs 305 can be evenly conducted to the pressure sensor 304, an induction pressure block 306 is provided between the compression springs 305 and the pressure sensor 304. One end of the compression spring 305 is connected to the induction pressure block 306, and the other end abuts against the second transmission member 302, and the pressure conducted by the second transmission member 302 is evenly conducted to the pressure sensor 304 by 2 compression springs 305 through the induction pressure block 306. Of course, based on this design, the number of compression springs 305 can be changed according to actual needs.

[0027] Further, in this embodiment, the main body bracket 100 is connected to the tool approaching mechanism 300 through a three-way valve rod (not shown). The operator can control the up-and-down movement of the tool approaching mechanism 300 by setting parameters, thereby adjusting the up-and-down position of the cutting tool assembly 400 and changing the contact depth between the cutting knife and the lower cutting knife during tool approaching.

[0028] Further refer to Figure 2 , in this embodiment, a linear slider 101 is provided at the rear of the main body bracket 100. The slitting knife is installed on a guide rail (not shown) through the linear slider 101. The slitting knife slides left and right on the guide rail through the linear slider 101 to adjust the gap between the slitting knife and the lower cutting knife so that the gap between the two meets the requirements of tool approaching.

[0029] More specifically, in this embodiment, a brake assembly 102 is further provided on the main body bracket 100. The operator can manually brake the slitting knife through the brake assembly to restrict the slitting knife from sliding along the guide rail.

[0030] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

Claims

1. A self-driven slitting knife, characterized in that, It includes a main body bracket (100), on which a pressure display (200) and a tool approaching mechanism (300) are provided. One end of the tool approaching mechanism (300) is hinged to a first transmission member (301) and a second transmission member (302). The other ends of the first transmission member (301) and the second transmission member (302) are both hinged to a cutter assembly (400). The first transmission member (301) and the second transmission member (302) are parallel. The tool approaching mechanism (300) includes an electromagnetic piston assembly (303) and a pressure sensing assembly. The electromagnetic piston assembly (303) abuts against and drives the first transmission member (301) to rotate and drives the cutter assembly (400) to move for tool approaching with the lower cutting blade. The second transmission member (302) rotates synchronously and presses the pressure sensing assembly. The pressure sensing assembly is electrically connected to the pressure display (200) to display the pressure.

2. The self-driven slitting knife according to claim 1, wherein The pressure sensing assembly includes a pressure sensor (304) and a compression spring (305). The pressure sensor (304) is electrically connected to the pressure display (200). One end of the compression spring (305) abuts against the pressure sensor (304), and the other end abuts against the second transmission member (302).

3. The self-driven slitting cutter according to claim 2, wherein The number of the compression springs (305) is greater than or equal to 2. An induction pressure block (306) is arranged between the pressure sensor (304) and the compression springs (305). One end of each compression spring (305) is connected to the induction pressure block (306).

4. A self-driven slitting knife according to any one of claims 1-3, characterized in that, The main body bracket (100) is connected to the tool approaching mechanism (300) through a three-way valve rod to control the up and down movement of the tool approaching mechanism (300) to adjust the up and down position of the cutter assembly (400).

5. The self-driven slitting knife according to claim 4, characterized in that, A linear slider (101) is arranged at the back of the main body bracket (100) to install the slitting cutter on the guide rail for left and right sliding.

6. The self-driven slitting knife according to claim 5, wherein A brake assembly (102) is also arranged on the main body bracket (100) to limit the sliding of the slitting cutter along the guide rail.

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