CN202199832U - Shearing machine capable of automatically regulating gap between shear blades - Google Patents

Abstract

The utility model discloses a shearing machine capable of automatically regulating the gap between shear blades, which at least comprises a frame, a motor at the top of the frame, an H-type turning device connected with the motor, a rotation type encoder, first and second spiral elevators connected with the H-type turning device, a wedged regulating device connected with the first and the second spiral elevators, and a shearing device connected with the wedged regulating device. The shearing machine has a function of regulating the gap between the shear blades in on-line and real-time manner, improves the regulation accuracy of the gap between the shear blades, and greatly improves the production efficiency.

Description

Shearing machine with automatic adjustment of cutting edge clearance

technical field

The utility model belongs to the technical field of metallurgical equipment, in particular to a shearer for a strip steel processing production line in the metallurgical industry, which can automatically adjust the gap between cutting blades.

Background technique

At present, the existing shearing machines all adopt the method of manually adjusting the clearance of the cutting blades; in this way, the wedge-shaped adjustment device 4 is connected with the screw 1 and the nut 2 fixed on the support plate 3, and when the clearance of the cutting blades is adjusted, the Rotate the nut 2 to adjust the height of the wedge to achieve the effect of adjusting the shearing device 5 . This kind of structure needs to shut down the machine to adjust the cutting edge gap manually, which is not only time-consuming and laborious, but also the adjustment effect is not ideal, and it is not easy to control the cutting edge gap. For manufacturers with a large number of plate thickness specifications, frequent shutdowns are required to adjust the cutting edge gap, resulting in a large waste of production time, low productivity.

Contents of the invention

The purpose of the utility model is to provide a shearing machine with convenient adjustment of the gap between the cutting blades, easy control, high adjustment precision and high production efficiency.

The technical scheme of the utility model is: a shearing machine for automatically adjusting the gap between the cutting blades, which at least includes: it includes a frame, a motor placed on the top of the frame, an H-shaped steering device connected to the motor, and a motor coaxial with the motor. The connected rotary encoder, the first and second screw jacks connected with the H-shaped steering device, the wedge-shaped adjustment device connected with the first and second screw jacks, and the shearing device connected with the wedge-shaped adjustment device.

On the basis of the above technical solutions, it further includes subsidiary technical solutions:

The H-type steering device includes a first coupling connected to the motor, a cross-shaped steering gear connected to the first coupling, a T-shaped steering gear connected to the cross-shaped steering gear, and a T-shaped steering gear connected to the T-shaped steering gear. The second shaft coupling, the transmission shaft connected with the second shaft coupling.

The first screw jack is provided with a first worm mechanism that moves in conjunction with the transmission shaft and is output through the first output screw, while the second screw jack is provided with a mechanism that cooperates with the transmission shaft and outputs through the second output screw. The second worm gear mechanism, in which the first output screw and the second output screw rotate in opposite directions.

The wedge adjusting device includes a first wedge connected to the first output screw, a second wedge on one side that cooperates with the first wedge, a first slider located on the other side of the second wedge, and a wedge located on the other side of the second wedge. The first side liner on the other side of the first slider, the third wedge connected to the second output screw, the fourth wedge on one side and the third wedge, and the other side of the fourth wedge. The second slider on the side, the second side liner on the other side of the second slider, and a pair of outer side plates outside the first wedge and the third wedge.

The shearing device includes an upper knife rest positioned between the first side lining board and the second side lining board, an upper cutting edge fixed on the upper knife rest, a lower knife rest positioned below the upper knife rest, and a lower knife rest fixed on the lower knife rest. The upper lower cutting edge, the upper connecting rod connected with the lower knife rest, the lower connecting rod connected with the upper connecting rod, the connecting rod connected with the lower connecting rod, the hydraulic cylinder connected with the connecting rod and providing driving, A hydraulic cylinder support connected to the hydraulic cylinder, and several pin shafts connected between the connecting rods.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

Because the utility model adds an automatic adjustment cutting edge device, the shearing machine can cut a larger span of plate thickness, and the adjustment of the cutting edge is convenient and quick, with high precision, and can realize online real-time adjustment, greatly improving production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the schematic left view of prior art;

Fig. 2 is the three-dimensional schematic view of the utility model;

Fig. 3 is a three-dimensional schematic diagram of the utility model, wherein the frame is removed;

Fig. 4 is a schematic diagram of a wedge-shaped adjusting device of the present invention;

Fig. 5 is the schematic diagram of the H-type steering device of the present invention;

Fig. 6 is a schematic diagram of motion transmission of the present utility model;

Fig. 7 is a schematic diagram of the shearing device of the present invention.

Detailed ways

Embodiment: As shown in Figure 2-7, the utility model provides a specific embodiment of a shearing machine, which includes a frame 50, a motor 10 placed on the top of the frame 50, and an H-shaped steering device connected to the motor 10 20. The rotary encoder 30 coaxially connected with the motor 10, the first screw jack 40 and the second screw jack 80 connected with the H-type steering device 20, the first screw jack 40 and the second screw jack 80 connected The wedge-shaped adjusting device 60 and the shearing device 70 connected with the wedge-shaped adjusting device 60 . The motor 10 is preferably a motor with variable frequency speed regulation and a brake.

The H-type steering device 20 includes a first coupling 201 connected to the motor 10, a cross steering gear 202 connected with the first coupling 201, a T-shaped steering gear 203 connected with the cross steering gear 202, and a T The second shaft coupling 204 connected with the type steering gear 203 and the transmission shaft 205 connected with the second shaft coupling 204 .

The first screw jack 40 and the second screw jack 80 are installed symmetrically. The first screw jack 40 is provided with a first worm gear mechanism cooperating with the transmission shaft 205, and the second screw jack 80 is provided with a cooperating movement with the transmission shaft 205. The second turbine and worm mechanism, and the vertical movement direction obtained by the first turbine and worm mechanism is opposite to the vertical movement direction obtained by the second turbine and worm mechanism, that is, the first output screw 401 and the second output screw 801 The direction of rotation is opposite.

The wedge adjusting device 60 includes a first wedge 601 connected to the first output screw 401 , a second wedge 602 that moves in a wedge-like manner with the first wedge 601 on one side, and a first wedge located on the other side of the second wedge 602 . The slider 604, the first side liner 605 on the other side of the first slider 604, the third wedge 609 connected to the second output screw 801, the fourth wedge that moves wedge-shaped with the third wedge 609 on one side. Wedge 608, the second slider 607 on the other side of the fourth wedge 608, the second side lining 606 on the other side of the second slider 607, and the first wedge 601 and the third wedge 609 A pair of outer side panels 603,610.

The shearing device 70 includes an upper knife rest 709 located between the first side lining plate 605 and the second side lining plate 606, an upper cutting edge 710 fixed on the upper knife rest 709, and a lower knife rest 709 below the upper knife rest 709. Knife rest 707, the lower cutting edge 709 that is fixed on the lower knife rest 707, the upper link 706 that is connected with the lower knife rest 707, the lower link 705 that is connected with the upper link 706, the lower link 705 that is connected with the lower link 705 The connecting rod 704 , the hydraulic cylinder 702 connected with the connecting rod 704 and providing driving, the hydraulic cylinder bracket 701 connected with the hydraulic cylinder 702 , and several pin shafts 703 connecting the connecting rods.

As shown in Figure 3-6, the motor 10 rotates counterclockwise, drives the H-type steering device 20 and the rotary encoder 30 to rotate counterclockwise through the coupling 201, and the H-type steering device 20 drives the first screw through two sets of transmission shafts 205 The lifter 40 and the second screw lifter 80 rotate counterclockwise, and the first screw lifter 40 converts the rotational motion into a vertical upward movement through the built-in first worm gear mechanism, and then passes through the first output screw 401 of the first screw lifter 40 Drive the first wedge-shaped block 601 in the wedge-shaped adjustment device 60 to move vertically upwards, and then pass through the second wedge-shaped block 602 to convert it into a horizontal rightward movement, and pass the horizontal rightward movement through the first slider 604 and the first side liner 605 to the upper tool rest 709, and at the same time, the second screw jack 80 converts the rotary motion into a vertical downward motion through the built-in second worm gear mechanism, and then drives the wedge-shaped adjustment through the second output screw 801 of the second screw jack 80. The fourth wedge block 609 in the device 60 moves vertically downward, and then converts the horizontal rightward movement through the third wedge block 608, and transmits the horizontal rightward movement to the upper side through the second slider 607 and the second side liner 606. Knife rest 709, thus two groups of wedge-shaped structures act simultaneously, and promote upper knife rest 709 to drive upper shearing edge 710 to move horizontally to the right, so as to reduce the purpose of cutting blade clearance. On the contrary, the motor rotates clockwise, and the upper knife rest 709 drives the upper cutting edge 710 to move horizontally to the left, so as to increase the gap between the cutting blades.

This mechanism can control the distance of the wedge-shaped block rising/falling by recording the number of rotations of the motor 10 tracked by the rotary encoder 30, and then convert it into the distance of the upper knife rest moving left and right to achieve the purpose of adjusting the gap between the cutting blades.

As shown in Figure 7, when the gap between the cutting blades is adjusted in place, the hydraulic cylinder 702 extends forward/retracts backward, and transmits the force and motion to the lower knife rest 707 through the connecting rod mechanism connected with it, and then pushes the lower knife rest 707 The lower cutting edge 708 on the frame 707 rises/falls, and through the staggered/separated movement with the upper cutting edge 710, completes the action of cutting the steel plate or returning to its position.

The parameters and formulas that the utility model is applied to are as follows:

The speed of the selected motor is set to 500r/min, the reduction ratio of the H-type steering device is 1:4, and the reduction ratio of the screw jack is 1:20, so the speed of the input shaft of the screw jack is 125r/min, and the speed of the output screw is 6.25r/min. min.

Assuming that the motor rotates one revolution, the distance that the output screw rod rises is ΔH, and the inclination angle of the wedge block is set as the self-locking angle α, then the distance that the upper tool post moves horizontally is: ΔL=ΔH*tanα.

By adopting the utility model, an automatic adjustment cutting blade device is added, so the shearing machine can cut a larger span of plate thickness, the adjustment of the cutting blade is convenient and fast, and the precision is high, and online real-time adjustment can be realized, which greatly improves the production efficiency.

Of course, the above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow people familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model with this. All equivalent transformations or modifications made according to the spirit of the main technical solutions of the utility model shall fall within the protection scope of the utility model.

Claims (5)

1. A shearing machine that automatically adjusts the gap between the cutting blades, is characterized in that: it comprises a frame (50), a motor (10) placed on the top of the frame (50), an H-shaped steering wheel connected to the motor (10) The device (20), the rotary encoder (30) coaxially connected with the motor (10), the first and second screw jacks (40, 80) connected with the H-type steering device (20), and the first and second screw jacks The wedge-shaped adjusting device (60) connected with the elevator (40, 80), and the shearing device (70) connected with the wedge-shaped adjusting device (60). 2. The shearing machine according to claim 1, characterized in that: the H-shaped steering device (20) comprises a first shaft coupling (201) connected to the motor (10), and a first shaft coupling ( 201) connected cross-shaped steering gear (202), T-shaped steering gear (203) connected with cross-shaped steering gear (202), second shaft coupling (204) connected with T-shaped steering gear (203) . The transmission shaft (205) connected with the second coupling (204). 3. The shearing machine according to claim 2, characterized in that: the first screw jack (40) is provided with a first screw jack that moves in cooperation with the drive shaft (205) and is output through the first output screw (401). A turbine and worm mechanism, and the second screw jack (80) is provided with a second turbine and worm mechanism that cooperates with the transmission shaft (205) and is output through the second output screw (801), wherein the first output screw (401 ) and the second output screw (801) rotate in opposite directions. 4. The shearing machine according to claim 3, characterized in that: the wedge-shaped adjusting device (60) comprises a first wedge-shaped block (601) connected to the first output screw (401), one side connected to the first The second wedge block (602) of the wedge-shaped engagement movement of the wedge block (601), the first slide block (604) on the other side of the second wedge block (602), the second slide block (604) on the other side of the first slide block (604) One side lining plate (605), the third wedge block (609) connected with the second output screw mandrel (801), the fourth wedge block (608) that moves in a wedge shape with the third wedge block (609) on one side, is located at The second slide block (607) on the other side of the fourth wedge block (608), the second side liner (606) on the other side of the second slide block (607), and the first wedge block (601) and A pair of outer plates (603, 610) beyond the third wedge (609). 5. The shearing machine according to claim 4, characterized in that the shearing device (70) comprises an upper knife rest located between the first side lining (605) and the second side lining (606) (709), the upper cutting edge (710) that is fixed on the upper knife rest (709), the lower knife rest (707) that is positioned at the upper knife rest (709) below, the lower shearing edge that is fixed on the lower knife rest (707) ( 709), the upper connecting rod (706) that is connected with the lower knife rest (707), the lower connecting rod (705) that is connected with the upper connecting rod (706), the connecting rod that is connected with the lower connecting rod (705) ( 704), be connected with the connecting rod (704) and provide the driven hydraulic cylinder (702), the hydraulic cylinder bracket (701) connected with the hydraulic cylinder (702), and several pin shafts ( 703). the

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