阅读说明：本技术 一种液压横剪 (Hydraulic transverse shear ) 是由 陈亮 李文喜 杨建勇 于 2019-05-30 设计创作，主要内容包括：一种液压横剪,应用于冷轧带钢生产设备。下刀架的底部设置一组斜楔,上斜楔与下刀架连接,下斜楔与机架外侧的油缸连接；下刀架侧面与机架之间设有铜滑板和压板,下刀架内部设置油道并安装油嘴,压板与机架连接,上斜楔和下刀架厚度一致并连接,下刀架和上斜楔可在压板内侧的铜滑板所组成的沟槽内上下移动,下斜楔的上表面装有T型键,上斜楔底部的键槽与T型键之间滑动连接。本发明采用斜楔机构,将一个油缸的水平直线运动转化成下剪刃的垂直直线运动,通过上剪刃和下剪刃咬合,以实现剪切功能,结构简单可靠,维护方便,从根源上有效解决了两个液压缸需要同步问题,避免了运动剪刃卡死故障,影响正常生产。(A hydraulic transverse shear is applied to cold-rolled strip steel production equipment. The bottom of the lower tool rest is provided with a group of tapered wedges, the upper tapered wedge is connected with the lower tool rest, and the lower tapered wedge is connected with an oil cylinder outside the rack; be equipped with copper slide and clamp plate between lower tool rest side and the frame, the lower tool rest is inside to be set up the oil duct and to install the glib talker, and the clamp plate is connected with the frame, goes up the slide and the lower tool rest thickness unanimous and connects, and lower tool rest and last slide can reciprocate in the slot that the inboard copper slide of clamp plate is constituteed, and the upper surface of lower slide is equipped with T type key, goes up sliding connection between keyway and the T type key of slide bottom. The invention adopts the wedge mechanism to convert the horizontal linear motion of one oil cylinder into the vertical linear motion of the lower cutting edge, realizes the shearing function by the occlusion of the upper cutting edge and the lower cutting edge, has simple and reliable structure and convenient maintenance, effectively solves the problem that two hydraulic cylinders need to be synchronous fundamentally, and avoids the clamping fault of the moving cutting edge to influence the normal production.)

1. The utility model provides a hydraulic pressure is violently cut which characterized in that: the upper tool rest comprises a rack (1), an upper tool rest (2) fixed in the rack (1), an upper cutting edge (3) arranged on the upper tool rest (2), a lower tool rest (8) capable of moving in the rack (1), and a lower cutting edge (9) arranged on the lower tool rest (8), wherein a group of wedges are arranged at the bottom of the lower tool rest (8), an upper wedge (7) is connected with the lower tool rest (8) through a first screw (14), and a lower wedge (5) is connected with an oil cylinder (6) outside the rack (1).

2. A hydraulic cross shear as defined in claim 1, wherein: the upper tool rest (2) is connected with the rack (1) through a first bolt (11), the upper shear blade (3) is connected with the upper tool rest (2) through a first countersunk head screw (12), and a side gap between the upper shear blade (3) and the lower shear blade (9) is adjusted through a second screw (10); the lower shear blade (9) is connected with the lower tool rest (8) through a countersunk head screw II (13), a copper sliding plate I (20), a copper sliding plate II (21), a copper sliding plate III (23) and a pressing plate (4) are arranged between the side face of the lower tool rest (8) and the rack (1), an oil duct (19) is arranged inside the lower tool rest (8), an oil nozzle (18) is installed on the oil duct (19), the pressing plate (4) is connected with the rack (1) through a bolt II (22), the upper wedge (7) and the lower tool rest (8) are consistent in thickness and are connected through a screw I (14), and the lower tool rest (8) and the upper wedge (7) can move up and down in a groove formed by the copper sliding plate I (20), the copper sliding plate II (21) and the copper sliding plate III (23) on the inner side of the pressing plate (4); the upper surface of the lower inclined wedge (5) is provided with a T-shaped key (15) through a screw III (16), and a key groove at the bottom of the upper inclined wedge (7) is in sliding connection with the T-shaped key (15).

3. A hydraulic cross shear as defined in claim 1, wherein: the upper shear blade (3) and the lower shear blade (9) are respectively provided with four cutting edges (25), the two sides of the knife face of the upper shear blade (3) and the knife face of the lower shear blade (9) are symmetrically provided with counter bores (24), after the cutting edges (25) are worn, the counter bores screws (12) are loosened, the upper shear blade (3) and the lower shear blade (9) are taken down, and the direction is adjusted and then the cutting edge is installed again for repeated use.

Technical Field

The invention relates to the technical field of cold-rolled strip steel production equipment, in particular to a hydraulic transverse shear.

Background

The hydraulic transverse shear is indispensable shearing equipment in a cold-rolled strip post-treatment production line and has the function of cutting the head, the tail and the coil of the strip steel on a continuous production line or shearing defective parts. The cutting mode can be divided into an upper cutting mode and a lower cutting mode according to different cutting modes. The main structure of the upper cutting type is that the lower cutting edge is fixed, and the upper cutting edge moves downwards; the main structure of the lower cutting type is that the upper cutting edge is fixed and the lower cutting edge moves upwards. The movement of the cutting edge is realized by two oil cylinders arranged on the frame no matter in an upper cutting mode or a lower cutting mode. In actual production, the two hydraulic cylinders inevitably have asynchronous phenomenon, and once the two hydraulic cylinders are asynchronous, the moving shear blade will be blocked and the normal production is influenced. In order to solve the problem of non-synchronization of the double hydraulic cylinders, the hydraulic cross shear in the prior art adopts a mechanical synchronization structure of a gear and a rack pair, so that although the phenomenon of clamping of the moving shear blade can be avoided, the gear and the rack have gaps and cannot be absolutely synchronized, and meanwhile, the machining and mounting precision requirements of the gear and the rack are high, the gear and the rack are easy to wear and require periodic maintenance.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a hydraulic cross shear, which can realize the moving shearing of a shear blade by using one oil cylinder so as to thoroughly solve the problem that two hydraulic cylinders need to be synchronous.

In order to achieve the purpose, the invention comprises a rack, an upper tool rest fixed in the rack, an upper cutting edge arranged on the upper tool rest, a lower tool rest capable of moving in the rack and a lower cutting edge arranged on the lower tool rest, wherein a group of tapered wedges are arranged at the bottom of the lower tool rest, the upper tapered wedges are connected with the lower tool rest through screws, and the lower tapered wedges are connected with an oil cylinder outside the rack.

The upper tool rest is connected with the rack through a first bolt, the upper shear blade is connected with the upper tool rest through a first countersunk head screw, and a side gap between the upper shear blade and the lower shear blade is adjusted through a second screw; the lower shear blade is connected with the lower tool rest through a countersunk head screw II, a copper sliding plate I, a copper sliding plate II, a copper sliding plate III and a pressing plate are arranged between the side surface of the lower tool rest and the rack, an oil duct is arranged in the lower tool rest, an oil nozzle is arranged on the oil duct, the pressing plate is connected with the rack through a bolt II, the upper wedge is consistent in thickness with the lower tool rest and is connected through the screw I, and the lower tool rest and the upper wedge can move up and down in a groove formed by the copper sliding plate I, the copper sliding plate II and the copper sliding plate III on the inner side of the pressing plate; the upper surface of the lower wedge is provided with a T-shaped key through a third screw, and the key groove at the bottom of the upper wedge is in sliding connection with the T-shaped key.

The upper shear blade and the lower shear blade are respectively provided with four cutting edges, the two sides of the cutter face of the upper shear blade and the two sides of the cutter face of the lower shear blade are symmetrically provided with counter bores, after the cutting edges are worn, the first counter head screw is loosened, the upper shear blade and the lower shear blade are taken down, and the cutting edges are installed again after the direction is adjusted and then are reused.

Compared with the prior art, the hydraulic shearing mechanism has the most obvious characteristics that a wedge mechanism is adopted, the horizontal linear motion of one oil cylinder is converted into the vertical linear motion of the lower shearing blade, the upper shearing blade is meshed with the lower shearing blade to realize the shearing function, the structure is simple and reliable, the maintenance is convenient, the problem that the two hydraulic cylinders need to be synchronous is effectively solved fundamentally, and the problem that the moving shearing blades are stuck to influence the normal production is avoided.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a partial schematic view of the attachment of the lower blade carrier of fig. 1 to the frame.

Fig. 4 is a partial structural schematic view of the upper blade holder and the upper blade.

In the figure: 1. a frame; 2. an upper tool rest; 3. an upper shear blade; 4. pressing a plate; 5. a lower wedge; 6. an oil cylinder; 7. an upper wedge; 8. a lower tool rest; 9. a lower shear blade; 10. a second screw; 11. a first bolt; 12. a countersunk head screw I; 13. a countersunk head screw II; 14. a first screw; 15. a T-shaped bond; 16. a third screw; 17. plate and strip; 18. a nozzle tip; 19. an oil passage; 20. a first copper sliding plate; 21. A copper sliding plate II; 23. a copper sliding plate III; 24. a counterbore.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the invention comprises a frame 1, an upper tool rest 2 fixed in the frame 1, an upper cutting edge 3 arranged on the upper tool rest 2, a lower tool rest 8 capable of moving in the frame 1, and a lower cutting edge 9 arranged on the lower tool rest 8, wherein a group of wedges are arranged at the bottom of the lower tool rest 8, the upper wedges 7 are connected with the lower tool rest 8 through a first screw 14, and the lower wedges 5 are connected with an oil cylinder 6 outside the frame 1.

The upper tool rest 2 is connected with the machine frame 1 through a first bolt 11, the upper shear blade 3 is connected with the upper tool rest 2 through a first countersunk head screw 12, and a side gap between the upper shear blade 3 and the lower shear blade 9 is adjusted through a second screw 10; the lower shear blade 9 is connected with the lower tool rest 8 through a countersunk head screw II 13, a copper sliding plate I20, a copper sliding plate II 21, a copper sliding plate III 23 and a pressing plate 4 are arranged between the side surface of the lower tool rest 8 and the rack 1, an oil duct 19 is arranged in the lower tool rest 8, an oil nozzle 18 is arranged on the oil duct 19, the pressing plate 4 is connected with the rack 1 through a bolt II 22, the upper wedge 7 and the lower tool rest 8 are consistent in thickness and are connected through a screw I14, and the lower tool rest 8 and the upper wedge 7 can move up and down in a groove formed by the copper sliding plate I20, the copper sliding plate II 21 and the copper sliding plate III 23 on the inner side of the pressing plate 4; the upper surface of the lower inclined wedge 5 is provided with a T-shaped key 15 through a third screw 16, and a key groove at the bottom of the upper inclined wedge 7 is in sliding connection with the T-shaped key 15.

The upper shear blade 3 and the lower shear blade 9 are respectively provided with four cutting edges 25, the two sides of the knife face of the upper shear blade 3 and the knife face of the lower shear blade 9 are symmetrically provided with counter bores 24, after the cutting edges 25 are worn, the counter bores 12 are loosened, the upper shear blade 3 and the lower shear blade 9 are taken down, and the upper shear blade 3 and the lower shear blade 9 are installed again after the direction is adjusted for reuse or replaced by new upper shear blade 3 and new lower shear blade 9.

The working process of the invention is as follows: the oil cylinder 6 pushes the lower inclined wedge 5 to do horizontal linear motion, the lower tool rest 8 and the lower cutting edge 9 do vertical upward motion under the reversing action of the upper inclined wedge 7, the upper cutting edge 3 is meshed with the lower cutting edge 9, and the shearing function of the plate strip 17 is achieved.