A flying shear blade quick change mechanism

Abstract

This utility model relates to the field of metal sheet processing equipment and discloses a quick-change blade mechanism for a flying shear machine. It includes a main body, a blade plate, blades, a quick-installation assembly, and an adjustment assembly. The quick-installation assembly has a trapezoidal slider that slides with a trapezoidal groove on the blade plate, a blocking block for endpoint positioning, and a screw driven by a knob for tool-less quick locking. The adjustment assembly includes a slotted hole on the blade plate for adjusting the blade position, and an independent block-shaped pad for physical support of the blade after adjustment. Through this structure, this utility model achieves quick tool-less blade replacement and high-precision positioning. Furthermore, the introduction of the pad ensures extremely high locking stability after blade height adjustment, effectively resisting shearing impacts. This mechanism is very convenient to operate, solving the problems of time-consuming replacement and adjustment, and unstable positioning, significantly improving overall production line efficiency and final product quality.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet processing equipment, and in particular to a quick blade replacement mechanism for a flying shear. Background Technology

[0002] Flying shears are key pieces of equipment in modern metal rolling production lines. Their main function is to continuously and rapidly shear metal sheets such as steel and aluminum plates at high speeds without interrupting the production process. The performance and shearing quality of flying shears largely depend on the sharpness of their blades and the precision of the blade gap. Since the blades work continuously under high speed and high impact conditions, they will inevitably wear out and therefore need to be replaced or adjusted regularly.

[0003] In existing technical solutions, the blades of flying shear machines are usually directly fixed to the blade holder with multiple bolts. When the blade needs to be replaced, the operator must use special tools such as wrenches to completely remove all the fastening bolts one by one before the old blade can be removed. Then the new blade is installed and all the bolts are tightened again. This process is not only cumbersome but also time-consuming. Since the production line must stop to wait for the blade replacement to be completed, each blade replacement results in a significant loss of effective production time, directly affecting the operating efficiency of the entire production line.

[0004] Furthermore, when production tasks change and steel plates of different thicknesses need to be sheared, the shearing gap between the upper and lower blades needs to be precisely adjusted. Traditional fixing methods make the fine-tuning process extremely inconvenient. Operators often need to repeatedly tighten and loosen bolts and use measuring tools to make multiple measurements and trial adjustments, making it difficult to quickly and accurately reach the ideal position and ensuring adjustment accuracy. Therefore, a quick blade replacement mechanism for flying shears is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick blade replacement mechanism for a flying shear, aiming to improve the problems of complex blade replacement process, long time consumption, inconvenient blade gap adjustment and difficulty in ensuring accuracy when dealing with plates of different thicknesses in the existing quick blade replacement mechanism of flying shear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a quick blade replacement mechanism for a flying shear machine, comprising: a main body, a blade mounting bracket mounted on the main body, a blade plate, and blades mounted on the blade plate; it also includes a quick mounting component mounted on the main body and an adjustment component mounted on the blade plate.

[0007] The quick-installation component includes a trapezoidal slider, a limiting plate, and a fixing sleeve fixed to the main body, as well as a screw rod passing through the fixing sleeve and the limiting plate, with a knob connected to the end of the screw rod.

[0008] Furthermore, the side wall of the blade plate is provided with a trapezoidal groove that slides with the trapezoidal slider on the main body; the main body is also provided with a blocking block for limiting the sliding depth of the blade plate.

[0009] Preferably, the blade plate forms a sliding guide engagement with the trapezoidal slider on the main body through the trapezoidal groove on it, and the limiting plate and the mounting plate are located on the upper and lower sides of the blade plate sliding path, respectively.

[0010] Preferably, the blade plate has a slotted hole through which a screw passes. The screw passes through the slotted hole under the drive of the knob to press the blade plate against and fix it to the main body.

[0011] Preferably, the adjusting components include bolts and washers.

[0012] Preferably, the blade is mounted to the blade plate by bolts.

[0013] Preferably, the blade plate has a slotted hole for the bolt to pass through, and the blade has an adjustable position range on the blade plate through the slotted hole.

[0014] Preferably, the pad is a separate component, which is located between the bottom of the blade and the blade plate to abut and support the blade.

[0015] Preferably, when the bolt is tightened, the blade and the pad are pressed together and fixed to the blade plate.

[0016] This utility model has the following beneficial effects: 1. This utility model greatly simplifies the complex process of tool replacement and adjustment by setting up quick-installation and adjustment components. The installation of the blade plate is achieved without tools, which can be completed by "pushing in and tightening". The adjustment of the blade height only requires a simple step of "loosening, adjusting and locking". This not only reduces the skill requirements and labor intensity of operators, but more importantly, it greatly shortens downtime and significantly improves the operating efficiency of the entire production line.

[0017] 2. In terms of installation, the trapezoidal slider and trapezoidal groove guide each other, and the blocking block provides physical positioning, ensuring that the blade can be accurately and repeatedly installed in the same position each time. In terms of adjustment, a pad is innovatively introduced to support the blade at the bottom, changing the traditional method of fixing by simply relying on the friction of bolts. This provides a solid physical reference for the blade. This design can effectively resist the huge impact force generated when the flying shear is working, prevent the blade position from shifting, and thus ensure the stability and durability of the cutting quality.

[0018] 3. In this utility model, when faced with shearing tasks of steel plates of different thicknesses, this solution does not require replacing the entire set of tools. It only requires quick adjustment of the blade height to cope flexibly, which enhances the flexibility and response speed of production task switching. This design reduces the need for enterprises to keep multiple special tools for different specifications of products, thereby saving the cost of purchasing, storing and managing spare parts. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a quick blade changing mechanism for a flying shear machine proposed in this utility model; Figure 2 This is a schematic diagram of the quick-installation assembly of a blade quick-change mechanism for a flying shear machine proposed in this utility model; Figure 3 This is a schematic diagram of the blocking block of a quick blade replacement mechanism for a flying shear machine proposed in this utility model; Figure 4 An exploded view of the trapezoidal groove of a quick blade changing mechanism for a flying shear machine according to this utility model; Figure 5 This is a schematic diagram of the adjustment component of a quick blade replacement mechanism for a flying shear machine proposed in this utility model.

[0020] Legend: 1. Main body; 2. Tool holder mounting; 3. Quick-installation assembly; 301. Limiting plate; 302. Trapezoidal slider; 303. Fixing sleeve; 304. Screw; 305. Knob; 306. Trapezoidal groove; 307. Tool plate; 4. Adjustment assembly; 401. Bolt; 402. Blade; 403. Pad; 404. Waist hole; 5. Blocking block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-5 A quick blade replacement mechanism for a flying shear machine is proposed, which aims to solve the technical problems of complex, time-consuming, and inconvenient blade replacement process in existing flying shear machines.

[0023] The quick-change blade mechanism of the flying shear includes a main body 1 as the overall basic frame, on which a blade holder 2 is fixedly connected; the mechanism also includes a blade plate 307 and blades 402 mounted on the blade plate 307.

[0024] The mechanism also includes a quick-installation assembly 3 on the main body 1 and an adjustment assembly 4 on the blade plate 307.

[0025] Specifically, the quick-installation component 3 includes a trapezoidal slider 302, a limiting plate 301, a fixing sleeve 303, a screw 304, and a knob 305. The trapezoidal slider 302, the limiting plate 301, and the fixing sleeve 303 are all fixedly connected to the main body 1. The screw 304 is rotatably inserted into the fixing sleeve 303 and the limiting plate 301, and the knob 305 is fixedly connected to the end of the screw 304 away from the fixing sleeve 303. A blocking block 5 is also fixedly connected to the main body 1.

[0026] The side wall of the blade plate 307 is provided with a trapezoidal groove 306 that matches the shape of the trapezoidal slider 302. The blade plate 307 and the trapezoidal slider 302 are slidably connected through the trapezoidal groove 306. During assembly, the blade plate 307 slides in along the trapezoidal slider 302. The mounting holder 2 and the limiting plate 301 are located on the upper and lower sides of the blade plate 307, respectively, to guide it. The end position of the blade plate 307 sliding in is limited by the blocking block 5.

[0027] The blade 307 is also provided with an elongated waist hole 404; when the blade 307 slides into the blocking block 5, the knob 305 drives the screw 304 to rotate, the rod of the screw 304 moves forward and passes through the waist hole 404, thereby firmly pressing and fixing the blade 307 to the main body 1.

[0028] The adjusting assembly 4 includes a bolt 401 and a pad 403; the blade 402 is mounted on the blade plate 307 by the bolt 401, and the rod of the bolt 401 passes through the blade 402 and the waist hole 404 and is threadedly connected to the blade plate 307, and the position of the blade 402 can be adjusted along the length of the waist hole 404; the pad 403 is an independent block structure, which can be inserted between the bottom of the blade 402 and the blade plate 307 to support the blade 402; when the bolt 401 is tightened, it presses the blade 402 and the pad 403 together and fixes them on the blade plate 307.

[0029] The specific usage method of the 402 quick-change blade mechanism of this flying shear is as follows: When installing the blade plate 307, first align the trapezoidal groove 306 on the blade plate 307 with the trapezoidal slider 302 on the main body 1, and slide it inward along the trapezoidal slider 302; during the sliding process, the upper and lower edges of the blade plate 307 are guided and limited by the mounting blade holder 2 and the limiting plate 301 respectively; continue to push the blade plate 307 inward until its end abuts against the blocking block 5 fixed on the main body 1, at which point the installation and positioning of the blade plate 307 is completed.

[0030] After positioning, rotate the knob 305 connected to the end of the screw 304. The screw 304 will rotate and move along the axial direction. Its rod body passes through the fixing sleeve 303 and the limiting plate 301 in sequence, and finally passes into the waist hole 404 opened on the blade 307. Thus, the blade 307 is firmly locked on the main body 1 by the abutment force. The entire installation process does not require the use of additional tools.

[0031] When the height of the blade 402 needs to be adjusted to suit different shearing requirements, first loosen the bolt 401 in the adjustment assembly 4 used to fix the blade 402; since the rod of the bolt 401 passes through the blade 402 and also passes through the waist hole 404 on the blade plate 307 for fixing, after the bolt 401 is loosened, the blade 402 can be adjusted up and down along the length direction of the waist hole 404.

[0032] After adjusting the blade 402 to the appropriate height, insert another component in the adjustment assembly 4, namely the independent pad 403, into the gap formed between the bottom of the blade 402 and the blade plate 307. The thickness of the pad 403 matches the height of the gap to provide reliable physical support for the blade 402.

[0033] Finally, tighten bolt 401 again. The clamping force of bolt 401 will secure the blade 402 and the pad 403 together to the blade plate 307, thus completing the rapid adjustment of the height of the blade 402.

[0034] Working principle: When the blade 402 quick-change mechanism of the flying shear machine is working, it realizes the quick replacement of the blade plate 307 and the quick adjustment of the height of the blade 402 through the coordinated action of the quick installation component 3 and the adjustment component 4.

[0035] When replacing the blade plate 307, the operator uses the sliding engagement formed by the trapezoidal groove 306 on the blade plate 307 and the trapezoidal slider 302 on the main body 1 to quickly push the blade plate 307 into the installation position. During this process, the mounting holder 2 and the limiting plate 301 provide stable guidance to prevent deflection, while the blocking block 5 acts as a physical hard limit, precisely defining the installation endpoint of the blade plate 307 and ensuring the repeatability of positioning accuracy for each replacement. After positioning, the screw 304 is driven forward and passes through the waist hole 404 by manually turning the knob 305. The axial force of the screw 304 is used to firmly press the blade plate 307 onto the main body 1. The whole process requires no tools and is quick to operate.

[0036] When shearing tasks requiring adaptation to steel plates of varying thicknesses are needed, there is no need to replace the entire cutting tool. Only the height of the blade 402 needs to be adjusted. By loosening the bolt 401, the blade 402 can move freely up and down within the stroke range provided by the waist hole 404. After adjusting to the target position, the shim 403 is inserted into the gap between the blade 402 and the blade plate 307 to provide a solid physical support for the blade 402. Finally, the bolt 401 is tightened again to lock the blade 402 and the shim 403 together. The introduction of the shim 403 avoids the possible displacement of the blade 402 that may occur when relying solely on the friction of the bolt 401 for locking under high-impact shearing conditions, significantly improving the reliability of the adjusted work.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change blade mechanism for a flying shear machine, comprising: Main body (1); The mounting tool holder (2) is mounted on the main body (1); A blade plate (307) and a blade (402) mounted on the blade plate (307); Its characteristic is that it further includes: Quick-installation component (3) is disposed on the main body (1); Adjustment component (4) disposed on the blade (307); The quick-installation assembly (3) includes a trapezoidal slider (302), a limiting plate (301), a fixing sleeve (303) fixed to the main body (1), and a screw (304) passing through the fixing sleeve (303) and the limiting plate (301), with a knob (305) connected to the end of the screw (304). The side wall of the blade (307) is provided with a trapezoidal groove (306) that slides with the trapezoidal slider (302). The main body (1) is also provided with a blocking block (5) for limiting the sliding depth of the blade (307).

2. A blade quick change mechanism for a flying shear as claimed in claim 1, wherein: The blade (307) forms a sliding guide engagement with the trapezoidal slider (302) on the main body (1) through the trapezoidal groove (306) on it. The limiting plate (301) and the mounting holder (2) are located on the upper and lower sides of the sliding path of the blade (307), respectively.

3. The blade quick-change mechanism for a flying shear machine according to claim 1, characterized in that: The blade (307) has a waist hole (404) through which the screw (304) passes. Under the drive of the knob (305), the screw (304) passes through the fixing sleeve (303), the limiting plate (301) and the waist hole (404) to press and fix the blade (307) against the main body (1).

4. The blade quick-change mechanism for a flying shear machine according to claim 1, characterized in that: The adjustment assembly (4) includes a bolt (401) and a shim (403).

5. The blade quick-change mechanism for a flying shear machine according to claim 4, characterized in that: The blade (402) is mounted on the blade plate (307) by the bolt (401), and the bolt (401) passes through the blade (402) and is fixed to the blade plate (307).

6. The blade quick-change mechanism for a flying shear machine according to claim 5, characterized in that: The blade plate (307) has a waist hole (404) through which the bolt (401) passes, and the blade (402) has an adjustable position range on the blade plate (307) through the waist hole (404).

7. The blade quick-change mechanism for a flying shear machine according to claim 6, characterized in that: The pad (403) is a separate component, which is disposed between the bottom of the blade (402) and the blade plate (307) to abut and support the blade (402).

8. The blade quick-change mechanism for a flying shear machine according to claim 7, characterized in that: When the bolt (401) is tightened, it presses the blade (402) and the pad (403) together and fixes them to the blade plate (307).

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