Strip steel cutting mechanism

Abstract

The utility model discloses a strip steel cutting mechanism which comprises a conveying platform, a support is arranged above the conveying platform, a liftable cutting knife is arranged in the middle of the support, liftable pressing blocks are arranged at the positions, corresponding to the two sides of the cutting knife, of the support, each pressing block comprises an outer protection block, and a balancing weight is arranged in each outer protection block. Connecting screws extending towards the outer side of the outer protection block are arranged on the two sides of the upper end of the balancing weight and penetrate through the lifting plate, and threaded caps are arranged at the ends, penetrating through the lifting plate, of the connecting screws. The two pressing block structures are arranged, each pressing block comprises the soft outer protection block and the balancing weight arranged in the outer protection block, the balancing weights can guarantee the overall strength of the pressing blocks and avoid deformation, the outer protection blocks can play a protection role, damage to the surface of the strip steel when the pressing blocks press the strip steel is prevented, and the service life of the strip steel is prolonged. Therefore, great convenience is brought to production work.

Description

Technical Field

[0001] The utility model relates to the technical field of strip steel transportation, in particular to a strip steel cutting mechanism. Background Art

[0002] After the strip is processed, it is necessary to cut the entire strip. At present, the common cutting equipment on the market mainly includes a conveying platform, a cutting knife and a pressing block structure, wherein the pressing block structure is used to fix the strip to prevent the cutting surface from tilting due to displacement during cutting. At present, the pressing block is mainly made of metal, which is pressed on the upper surface of the strip through a driving mechanism. Since the pressing block itself has a very strong hardness, it will inevitably cause wear on the surface of the strip during pressing, which will affect the overall quality of the strip. In order to avoid this situation, some production workshops will also use rubber pressing blocks instead of metal pressing blocks. Although the rubber pressing block can protect the surface of the strip, after working for a period of time, due to the poor strength of the rubber pressing block itself, the long rubber pressing block is easily deformed, which affects the normal pressing work and brings great inconvenience to production. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a strip steel cutting mechanism, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows: a strip steel cutting mechanism, comprising a conveying platform, a bracket is provided above the conveying platform, a liftable cutting knife is provided in the middle of the bracket, and liftable pressing blocks are provided on the bracket at positions corresponding to both sides of the cutting knife;

[0005] The bracket is provided with a lifting frame and a lifting plate, the cutting knife is installed on the lifting frame, and the pressing block is installed at the bottom of the lifting plate;

[0006] The pressure block includes a soft outer protective block, a counterweight block is arranged inside the outer protective block, and connecting screws extending to the outside of the outer protective block are arranged on both sides of the upper end of the counterweight block. The connecting screw passes through the lifting plate, and a threaded cap is arranged at one end of the connecting screw passing through the lifting plate.

[0007] Furthermore, the outer protective block is made of rubber, and the counterweight block is made of iron.

[0008] Furthermore, first lifting cylinders are provided on both sides of the bracket, and the piston rods of the first lifting cylinders vertically pass through the top plate of the bracket, and the piston rods of the first lifting cylinders are fixedly connected to the top of the lifting plate.

[0009] Furthermore, a second lifting cylinder is provided on the bracket between the first lifting cylinders on both sides. The piston rod of the second lifting cylinder vertically passes through the top plate of the bracket downward, and the piston rod of the second lifting cylinder is fixedly connected to the lifting frame.

[0010] Furthermore, the lifting frame is provided with a motor which can move left and right, and the cutting knife is installed on the driving shaft of the motor.

[0011] Furthermore, a lead screw is provided at the lower end of the lifting frame along the left and right directions, the lead screw is driven to rotate by a servo motor, a slider is provided on the lead screw, and the motor is installed on the slider.

[0012] Furthermore, the conveying platform is provided with an avoidance groove for facilitating the left and right movement of the cutting knife.

[0013] Furthermore, the lifting frame is provided with mounting seats on the left and right sides of its lower end, the screw is installed on the mounting seats on both sides, a servo motor is provided on one mounting seat, the rotating shaft of the servo motor is fixedly connected to the end of the screw, and the bottom of the lifting frame is provided with linear guide rails at positions corresponding to the front and rear sides of the screw, and the slider is provided with a guide groove adapted to the linear guide rails.

[0014] Furthermore, guide rods are provided on the left and right sides of the lifting frame, and the guide rods vertically pass through the top plate of the bracket. The top of the bracket is provided with retaining mechanisms at positions corresponding to both sides of the guide rods.

[0015] Furthermore, the retaining mechanism includes a fastening cylinder arranged on both sides of the guide rod, the piston rod of the fastening cylinder is arranged toward the guide rod, and the fastening cylinder is provided with a retaining block at the end of its piston rod, and the retaining block is provided with a slot adapted to the shape of the guide rod on the side facing the guide rod.

[0016] The above technical solution of the present invention has the following beneficial effects: the present invention sets up two groups of pressing block structures, and the pressing block includes a soft outer protective block and a counterweight block arranged inside the outer protective block. The counterweight block can ensure the overall strength of the pressing block and avoid deformation. Moreover, the setting of the outer protective block can play a protective role to prevent the surface of the strip from being damaged when the pressing block presses on the strip. These bring great convenience to production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top plan structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the side planar structure of an embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of a pressing block according to an embodiment of the present utility model;

[0020] Figure 4 It is a schematic diagram of the planar structure of the bracket of an embodiment of the present utility model. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1-3 As shown, the strip steel cutting mechanism described in this embodiment includes a conveying platform 1, a bracket 2 is provided above the conveying platform 1, a liftable cutting knife 3 is provided in the middle of the bracket 2, and liftable pressing blocks 4 are provided on the bracket 2 at positions corresponding to both sides of the cutting knife 3;

[0024] The bracket 2 is provided with a lifting frame 5 and a lifting plate 6, the cutting knife 3 is installed on the lifting frame 5, and the pressing block 4 is installed at the bottom of the lifting plate 6;

[0025] The pressure block 4 includes a soft outer protective block 4a, a counterweight block 4b is arranged inside the outer protective block 4a, and connecting screws 4c extending to the outside of the outer protective block 4a are arranged on both sides of the upper end of the counterweight block 4b. The connecting screw 4c passes through the lifting plate 6 vertically upward, and a threaded cap 4d is provided at one end of the connecting screw 4c passing through the lifting plate 6.

[0026] Preferably, the outer protective block 4a is made of rubber, and the counterweight block 4b is made of iron.

[0027] When installing the pressure block 4, first insert the end of the outer protective block 4a with the connecting screw 4c into the socket of the lifting plate 6, so that the top of the outer protective block 4a rests on the lower end of the lifting plate 6, and the connecting screw 4c passes through the lifting plate 6 and extends to the top of the lifting plate 6. Then the threaded cap 4d is tightened on the connecting screw 4c, so that the pressure block 4 is installed as a whole on the lifting plate 6.

[0028] First lifting cylinders 7 are provided on both sides of the bracket 2 , and the piston rods of the first lifting cylinders 7 vertically downwardly pass through the top plate of the bracket 2 , and the piston rods of the first lifting cylinders 7 are fixedly connected to the top of the lifting plate 6 .

[0029] A second lifting cylinder 8 is provided on the bracket 2 between the first lifting cylinders 7 on both sides. The piston rod of the second lifting cylinder 8 passes vertically downward through the top plate of the bracket 2. The piston rod of the second lifting cylinder 8 is fixedly connected to the lifting frame 5.

[0030] A motor 9 that can move left and right is provided on the lifting frame 5 , and the cutting knife 3 is installed on the driving shaft of the motor 8 .

[0031] A lead screw 10 is provided at the lower end of the lifting frame 5 along the left-right direction. The lead screw 10 is driven to rotate by a servo motor. A slider 11 is provided on the lead screw 10 , and the motor 9 is installed on the slider 11 .

[0032] The conveying platform 1 is provided with an avoidance groove 1a for facilitating the left and right movement of the cutting knife 3 .

[0033] The lifting frame 5 is provided with mounting seats 12 on the left and right sides of its lower end, and the screw 10 is installed on the mounting seats 12 on both sides. A servo motor 13 is provided on one side of the mounting seat 12. The rotating shaft of the servo motor 13 is fixedly connected to the end of the screw 10. The servo motor 13 drives the screw 10 to rotate. The bottom of the lifting frame 5 is provided with linear guide rails 14 at positions corresponding to the front and rear sides of the screw 10, and the slider 11 is provided with guide grooves adapted to the linear guide rails 14.

[0034] The servo motor 13 drives the lead screw 10 to rotate, thereby causing the slider 11 to move left and right along the linear guide rail 14 .

[0035] Guide rods 15 are further provided on the left and right sides of the lifting frame 5 . The guide rods 15 vertically pass through the top plate of the bracket 2 . The top of the bracket 2 is provided with retaining mechanisms at positions corresponding to both sides of each guide rod 15 .

[0036] The guide rod 15 plays a role of guiding and retaining, thereby ensuring that the lifting frame 5 can maintain linear displacement. When the cutting knife 2 performs a cutting operation, the guide rod 15 can ensure the stability of the lifting frame 5 and prevent it from vibrating.

[0037] The retaining mechanism includes a fastening cylinder 16 arranged on both sides of the guide rod 15. The piston rod of the fastening cylinder 16 is arranged toward the guide rod. The fastening cylinder 16 is provided with a retaining block 17 at the end of its piston rod. The retaining block 17 is provided with a slot on the side facing the guide rod 15 that is adapted to the shape of the guide rod 15.

[0038] Control the operation of the fastening cylinders 16 on both sides, and the retaining blocks 17 on each fastening cylinder will move toward one side of the guide rod 15. The slots at the ends of the retaining blocks 17 are clamped on the guide rod 15, and the clamping guide rod 15 can play an auxiliary pulling role. The retaining mechanism cooperates with the second lifting cylinder 8 to fix the position of the lifting plate 5. When the position of the lifting plate 5 needs to be adjusted, the piston rod of the fastening cylinder 16 retracts and separates the retaining blocks 17 from the guide rod 15, and then the second lifting cylinder 8 can control the lifting plate 5 to move up and down.

[0039] The working principle of the present utility model is as follows: the strip steel is conveyed on the conveying platform 1, and the rear end of the conveying platform 1 will reel the strip steel. After conveying a certain length of strip steel, the strip steel needs to be cut. At this time, the first lifting cylinder 7 is started, and its piston rod extends and controls the pressure block 4 to move downward. The pressure block 4 is pressed on the surface of the strip steel, and the motor 9 drives the cutting knife 3 to rotate. At the same time, the piston rod of the second lifting cylinder 8 extends, controlling the cutting knife 3 to contact the surface of the strip steel and cut the strip steel. After the position of the cutting knife is selected, the fastening cylinder 16 controls the retaining block 17 to clamp the guide rods 15 on both sides of the lifting plate 5. Finally, the servo motor starts to control the screw 10 to rotate, thereby driving the slider 11 to move left and right along the strip steel, thereby completing the cutting of the strip steel.

[0040] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A strip cutting mechanism, characterized in that: It includes a conveying platform, a bracket is provided above the conveying platform, a liftable cutting knife is provided in the middle of the bracket, and liftable pressing blocks are provided on the bracket at positions corresponding to both sides of the cutting knife; The bracket is provided with a lifting frame and a lifting plate, the cutting knife is installed on the lifting frame, and the pressing block is installed at the bottom of the lifting plate; The pressure block includes an outer protective block, a counterweight block is arranged inside the outer protective block, connecting screws extending to the outside of the outer protective block are arranged on both sides of the upper end of the counterweight block, the connecting screw passes through the lifting plate, and a threaded cap is arranged at one end of the connecting screw passing through the lifting plate.

2. The strip cutting mechanism according to claim 1, characterized in that: The outer protective block is made of rubber, and the counterweight block is made of iron.

3. The strip cutting mechanism according to claim 1, characterized in that: A first lifting cylinder is provided on both sides of the bracket, and a piston rod of the first lifting cylinder vertically passes through the top plate of the bracket downward, and the piston rod of the first lifting cylinder is fixedly connected to the top of the lifting plate.

4. The strip cutting mechanism according to claim 3, characterized in that: A second lifting cylinder is provided on the bracket between the first lifting cylinders on both sides. The piston rod of the second lifting cylinder vertically passes through the top plate of the bracket downward. The piston rod of the second lifting cylinder is fixedly connected to the lifting frame.

5. The strip cutting mechanism according to claim 4, characterized in that: The lifting frame is provided with a motor which can move left and right, and the cutting knife is installed on the driving shaft of the motor.

6. The strip cutting mechanism according to claim 5, characterized in that: A lead screw is provided at the lower end of the lifting frame along the left and right directions. The lead screw is driven to rotate by a servo motor. A slider is provided on the lead screw, and the motor is installed on the slider.

7. The strip cutting mechanism according to claim 6, characterized in that: The conveying platform is provided with an avoidance groove for facilitating the left and right movement of the cutting knife.

8. The strip cutting mechanism according to claim 6, characterized in that: The lifting frame is provided with mounting seats on the left and right sides of its lower end, the lead screw is installed on the mounting seats on both sides, a servo motor is provided on one mounting seat, the rotating shaft of the servo motor is fixedly connected to the end of the lead screw, and the bottom of the lifting frame is provided with linear guide rails at positions corresponding to the front and rear sides of the lead screw, and the slider is provided with a guide groove adapted to the linear guide rails.

9. The strip cutting mechanism according to claim 4, characterized in that: Guide rods are further provided on the left and right sides of the lifting frame. The guide rods pass vertically upward through the top plate of the bracket. Retention mechanisms are provided on the top of the bracket at positions corresponding to both sides of the guide rods.

10. The strip cutting mechanism according to claim 9, characterized in that: The retaining mechanism includes a fastening cylinder arranged on both sides of the guide rod, the piston rod of the fastening cylinder is arranged toward the guide rod, and a retaining block is provided at the end of its piston rod. The retaining block is provided with a slot adapted to the shape of the guide rod on the side facing the guide rod.

Images