Multi-connecting-rod profile cutting mechanism
By using a multi-link profile cutting mechanism, which utilizes a cylinder to drive the linkage mechanism to achieve cutting, the problem of large space occupation of existing cutting structures is solved, and the structural height and economic cost are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINHUANGDAO FANGHUA SECM MACHINERY
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-28
AI Technical Summary
The existing cutting structure occupies a large space, is not convenient for overall assembly, and increases economic costs.
A multi-link profile cutting mechanism is adopted, which uses a pressure cylinder and a cutting cylinder to drive a slider to move along a slide rail through a linkage mechanism to achieve the cutting function. The power source is changed from a hydraulic cylinder to an air cylinder, and the structural height is reduced.
It enables the cutting of large-section products, reduces the structural height, facilitates overall assembly, and saves economic costs.
Smart Images

Figure CN224168860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of profile cutting, and in particular to a multi-link profile cutting mechanism. Background Technology
[0002] In roll forming fixtures, the profiles need to be cut after forming. In automated production, the spatial arrangement of fixture components is subject to strict requirements, and for certain products, it is necessary to strictly control structural space and cost. However, some existing cutting structures occupy a large amount of space, making overall assembly difficult and hindering cost reduction. Utility Model Content
[0003] This utility model aims to address the shortcomings of existing technologies by providing a multi-link profile cutting mechanism.
[0004] To achieve the above objectives, this utility model adopts the following technical solution:
[0005] A multi-link profile cutting mechanism includes a die mounting base and a slide rail mounting base. A die is mounted on the die mounting base, and a pressure cylinder is mounted on one side of the die mounting base. The pressure cylinder is connected to a pressure block, which is located on one side of the die. A slide rail is mounted on the slide rail, and a slider is slidably mounted on the slide rail. A cutter fixing seat is connected to the bottom of the slider, and a cutter is mounted on the bottom of the cutter fixing seat. The cutter is set in a corresponding groove. A U-shaped plate is fixed on the slider by a connecting block. A fixing block is mounted on one side of the slide rail mounting base. First connecting rods are hinged to both sides of the fixing block by first pins. A second connecting rod is hinged between the two first connecting rods by a second pin. One end of the second connecting rod is hinged between the U-shaped plates by a third pin, and the other end is hinged to a cutting cylinder.
[0006] A pressure cylinder mounting base is provided on one side of the die mounting base, and the pressure cylinder is mounted on the pressure cylinder mounting base.
[0007] The piston rod end of the pressing cylinder is connected to the first connector, and the pressing block is connected to the first connector.
[0008] A cutting cylinder mounting base is provided on one side of the slide rail mounting base, and the cutting cylinder is hinged to the cutting cylinder mounting base.
[0009] The piston rod end of the cut-off cylinder is connected to a second connector, and the end of the second connecting rod is hinged to the second connector.
[0010] The beneficial effects of this utility model are: this utility model realizes the cutting of large cross-section products with a smaller power source, reduces the structural height, facilitates the overall structural assembly and cooperation, and saves economic costs. Attached Figure Description
[0011] Figure 1This is a schematic diagram of the structure of this utility model;
[0012] In the diagram: 1-Die mounting base; 2-Slide rail mounting base; 3-Die; 4-Pressure cylinder; 5-Pressure block; 6-Slide rail; 7-Slider; 8-Cutter fixing base; 9-Cutter; 10-Connecting block; 11-U-shaped plate; 12-Fixing block; 13-First pin; 14-First connecting rod; 15-Second pin; 16-Second connecting rod; 17-Third pin; 18-Cutting cylinder; 19-Pressure cylinder fixing base; 20-First connector; 21-Cutting cylinder fixing base; 22-Second connector;
[0013] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0014] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0015] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] A multi-link profile cutting mechanism, such as Figure 1As shown, it includes a die mounting base 1, a slide rail mounting base 2, a die 3, a pressure cylinder 4, a pressure block 5, a slide rail 6, a slider 7, a cutter fixing base 8, a cutter 9, a connecting block 10, a U-shaped plate 11, a fixing block 12, a first pin 13, a first connecting rod 14, a second pin 15, a second connecting rod 16, a third pin 17, a cutting cylinder 18, a pressure cylinder fixing base 19, a first connector 20, a cutting cylinder fixing base 21, and a second connector 22.
[0019] A die 3 is mounted on a die mounting base 1. The die mounting base 1 is provided with a mounting slot. The bottom of the die 3 is provided with a mounting protrusion. The mounting protrusion is set in the mounting slot. The die 3 is detachably mounted on the die mounting base 1 by bolts.
[0020] A pressure cylinder 4 is installed on one side of the die mounting base 1. The pressure cylinder 4 is connected to a pressure block 5, which is located on one side of the die 3.
[0021] A pressure cylinder fixing seat 19 is provided on one side of the die mounting base 1, and the pressure cylinder 4 is installed on the pressure cylinder fixing seat 19.
[0022] The piston rod end of the pressing cylinder 4 is connected to the first connector 20, and the pressing block 5 is connected to the first connector 20.
[0023] A slide rail 6 is installed on the slide rail mounting base 2. The slide rail 6 is detachably installed on the slide rail mounting base 2 by bolts.
[0024] A slider 7 is slidably mounted on the slide rail 6. A cutter fixing seat 8 is connected to the bottom of the slider 7. A cutter 9 is mounted on the bottom of the cutter fixing seat 8. The cutter 9 is set in the groove 3. A U-shaped plate 11 is fixed on the slider 7 by a connecting block 10. A fixing block 12 is mounted on one side of the slide rail mounting seat 2. A first connecting rod 14 is hinged to both sides of the fixing block 12 by a first pin 13. A second connecting rod 16 is hinged between the two first connecting rods 14 by a second pin 15. One end of the second connecting rod 16 is hinged between the U-shaped plates 11 by a third pin 17, and the other end is hinged to a cutting cylinder 18.
[0025] A cutting cylinder fixing seat 21 is provided on one side of the slide rail mounting seat 2, and the cutting cylinder 18 is hinged to the cutting cylinder fixing seat 21.
[0026] The piston rod end of the cut-off cylinder 18 is connected to the second connector 22, and the end of the second connecting rod 16 is hinged to the second connector 22.
[0027] During production, after the product is bent and formed, it is placed on the die 3. The pressure cylinder 4 drives the pressure block 5 to press the product firmly. Then, the cutting cylinder 18 drives the second connecting rod 16, the first connecting rod 14, and the U-shaped plate 11 to move. The second connecting rod 16 and the first connecting rod 14 form a multi-link mechanism. The movement of the cutting cylinder 18 ultimately drives the slider 7 to move up and down linearly along the slide rail 6. The cutter 9 is fixed to the slider 7 through the cutter fixing seat 8, screws, keys, and other parts. Through its up and down linear movement, it achieves the function of cutting the product.
[0028] This invention enables the cutting of large-section products with a smaller power source, reduces the structural height, facilitates overall structural assembly, and saves economic costs.
[0029] This utility model replaces the hydraulic cylinder with a pneumatic cylinder for its power source, achieving low-cost cutting through structural force enhancement; the overall structure is relatively small, making it suitable for modular assembly and production of different products.
[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A multi-link profile cutting mechanism, characterized in that, The system includes a die mounting base (1) and a slide rail mounting base (2). A die (3) is mounted on the die mounting base (1). A pressure cylinder (4) is mounted on one side of the die mounting base (1). A pressure block (5) is connected to the pressure cylinder (4). The pressure block (5) is located on one side of the die (3). A slide rail (6) is mounted on the slide rail (2). A slider (7) is slidably mounted on the slide rail (6). A cutter fixing base (8) is connected to the bottom of the slider (7). A cutter (9) is mounted on the bottom of the cutter fixing base (8). The cutter (9) is positioned opposite to the die (3). The groove (3) is set, and a U-shaped plate (11) is fixed on the slider (7) by a connecting block (10). A fixing block (12) is installed on one side of the slide rail mounting base (2). A first connecting rod (14) is hinged on both sides of the fixing block (12) by a first pin (13). A second connecting rod (16) is hinged between the two first connecting rods (14) by a second pin (15). One end of the second connecting rod (16) is hinged between the U-shaped plates (11) by a third pin (17), and the other end is hinged to a cut-off cylinder (18).
2. The multi-link profile cutting mechanism according to claim 1, characterized in that, The die mounting base (1) has a pressure cylinder fixing seat (19) on one side, and the pressure cylinder (4) is installed on the pressure cylinder fixing seat (19).
3. The multi-link profile cutting mechanism according to claim 2, characterized in that, The piston rod end of the pressing cylinder (4) is connected to the first connector (20), and the pressing block (5) is connected to the first connector (20).
4. The multi-link profile cutting mechanism according to claim 3, characterized in that, The slide rail mounting base (2) has a cutting cylinder fixing base (21) on one side, and the cutting cylinder (18) is hinged on the cutting cylinder fixing base (21).
5. A multi-link profile cutting mechanism according to claim 4, characterized in that, The piston rod end of the cut-off cylinder (18) is connected to a second connector (22), and the end of the second connecting rod (16) is hinged to the second connector (22).
6. A multi-link profile cutting mechanism according to claim 5, characterized in that, The die mounting base (1) is provided with a mounting slot, and the bottom of the die (3) is provided with a mounting protrusion. The mounting protrusion is set in the mounting slot, and the die (3) is detachably mounted on the die mounting base (1) by bolts.
7. A multi-link profile cutting mechanism according to claim 6, characterized in that, The slide rail (6) is detachably mounted on the slide rail mounting base (2) by bolts.