CN105567928B - Silicon steel mechanical score machine press-roller device - Google Patents

Abstract

The invention relates to a pressing roller device of a mechanical scoring machine for silicon steel, comprising pressing rollers and supporting rollers in the same direction, the pressing rollers are supported by two rows of supporting rollers below, and the two rows of supporting rollers are respectively arranged The rollers form a "pin" shape, and the two rows of support rollers correspond one by one in the radial direction of the pressure roller. Each pair of corresponding support rollers is set on the same support roller seat, and each support roller seat is connected with a compression hydraulic cylinder. The compression hydraulic cylinder can drive the support roller to move up and down through the support roller seat. The pressing roller device can adjust the pressure exerted on the silicon steel.

Description

Pressure roller device for silicon steel mechanical scoring machine

technical field

The invention belongs to the field of iron and steel metallurgy, and relates to a pressure roller device for a silicon steel mechanical scoring machine.

Background technique

With the rapid development of the economy, the demand for electric power is increasing. About 40% of the electric energy lost in the power transmission and distribution system is consumed in the transformer, and the iron loss and copper loss in the total loss of the transformer each account for about 50%. Therefore, it is a very important part of the whole energy saving and carbon reduction business to continuously reduce the iron loss of grain oriented silicon steel and realize high efficiency and energy saving of transformers. To reduce the iron loss of grain-oriented silicon steel sheets, methods such as increasing the degree of grain orientation, increasing the silicon content, reducing the thickness of the plate, reducing the size of secondary recrystallized grains, tension coating, and refining magnetic domains can be used. Among them, the refining of magnetic domains is The most effective way to reduce iron loss. Carving even and extremely small grooves on the surface of silicon steel is called scoring. After the silicon steel is scored and then subjected to short-term heat treatment, the magnetic domains can be refined, thereby achieving the effect of reducing iron loss. The existing silicon steel scoring is divided into laser scoring and mechanical scoring. Mechanical scoring generally uses toothed rollers and pressure rollers to score silicon steel. The pressure roller device is the key part of the silicon steel mechanical scoring machine. The existing The pressure roller device generally has the following problems: the pressure exerted by the pressure roller on the silicon steel (strip) cannot be adjusted or is difficult to adjust, which is not conducive to the adjustment of the groove size.

Contents of the invention

The purpose of the present invention is to provide a silicon steel mechanical scoring machine pressure roller device, the pressure roller device can adjust the pressure applied to the silicon steel.

The technical scheme adopted in the present invention is:

A pressure roller device for a silicon steel mechanical scoring machine, including pressure rollers and support rollers in the same direction, the pressure roller is supported by two rows of support rollers below, and the two rows of support rollers are respectively arranged along the axis of the pressure roller and constituted with the pressure roller " The two rows of support rollers correspond one by one in the radial direction of the pressure rollers, and each pair of corresponding support rollers is set on the same support roller seat, and each support roller seat is connected with a compression hydraulic cylinder, and the compression hydraulic pressure The cylinder can drive the support roller to move up and down through the support roller seat.

Further, the pressure roller device of the silicon steel mechanical scoring machine also includes two synchronous shafts, the two synchronous shafts pass through all the supporting roller seats respectively, the two synchronous shafts are in the same direction as the pressing rollers and are symmetrical about the pressing rollers, and the supporting roller seats are The shaft hole diameter of the synchronous shaft is slightly larger than the outer diameter of the synchronous shaft.

Further, the two ends of the pressing roller are respectively arranged on two pressing roller seats, and the two pressing roller seats are respectively fixed on the two support roller seats at the two ends, and the pressing roller seats are provided with straight-line clamping grooves, and the ends of the pressing rollers The width of the part is equal to that of the linear slot, and the length of the linear slot is greater than the stroke of the pressure roller.

Further, slide plates are fixed on both sides of all supporting roller seats.

The beneficial effects of the present invention are:

1. When working, press the silicon steel (belt shape) tightly between the toothed roller and the pressure roller, pull the silicon steel (belt shape) forward, and under the joint action of the toothed roller and the pressure roller, the Engraving teeth (spiral shape) engrave uniform grooves on the silicon steel (belt shape), the size of the groove is related to the size of the helical teeth and the pressure exerted by the pressure roller on the silicon steel (belt shape), by adjusting the output of the compression hydraulic cylinder Pressure (the output pressure of the compression hydraulic cylinder can be adjusted in many ways, such as precisely controlled by a proportional pressure valve), which drives the support roller to move up and down to adjust the pressure transmitted from the support roller to the pressure roller, thereby adjusting the groove size. (In this embodiment, grooves with a width of 50um, a depth of 15um, and a distance of about 5mm are processed to reduce the iron loss by about 10%); the support rollers are arranged along the axial direction of the pressure roller, and each pair of support rollers can be controlled separately. , the corresponding pressure can be adjusted according to the thickness or stress distribution along the axial direction of the silicon steel (ribbon) to make the groove more uniform.

2. Due to the dimensional deviation of the compression hydraulic cylinder body and related parts, the movements of multiple compression hydraulic cylinders may be inconsistent when the compression hydraulic cylinder is lowered. When the strokes of the compression hydraulic cylinders differ greatly, it will cause The support rollers lose mutual restraint, or even get stuck with each other and cannot be lowered. Set the synchronous shaft and design a certain gap between the synchronous shaft and the shaft hole, allowing the stroke difference of each pair of support rollers to float within the range of this gap. When the stroke difference exceeds the clearance range, the synchronous shaft acts as a restraint to ensure the synchronous movement of each support roller and prevent the support roller from being stuck.

3. The pressure roller can only move up and down along the linear slot, and the role of the pressure roller seat is not to support but to limit the left and right movement of the pressure roller.

4. After installation, all the slides are attached to the vertical straight plates on the frame of the silicon steel mechanical scoring machine. The support roller seat is restricted between the vertical straight plates on both sides, and the slide plates move up and down against the vertical straight plates on the frame. .

Description of drawings

Fig. 1 is a working diagram of an embodiment of the present invention.

Fig. 2 is a perspective view of an embodiment of the present invention that does not include a compression hydraulic cylinder.

Fig. 3 is a front view of an embodiment of the present invention.

Fig. 4 is a sectional view of A-A in Fig. 3 .

In the figure: 1-frame; 2-engraving roller; 3-pressure roller; 4-support roller; 5-support roller base; skateboard.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 2, Fig. 3 and Fig. 4, a silicon steel mechanical scoring machine pressure roller device includes pressure roller 3 and support roller 4 in the same direction, pressure roller 3 is supported by two rows of support rollers 4 below, two rows The support rollers 4 are respectively arranged along the axial direction of the pressure roller 3 and form a "pin" shape with the pressure roller 3, and the two rows of support rollers 4 correspond to each other in the radial direction of the pressure roller 3 (in this embodiment, there are 11 pairs of support rollers 4 , the logarithm of the support roller 4 is related to the total length of the pressure roller 6, and the corresponding logarithm of the support roller 4 can be selected according to the total length of the specific pressure roller 3), and each pair of corresponding support rollers 4 is located on the same support roller seat 5, each support roller seat 5 is connected with a compression hydraulic cylinder 6 (as shown in Figure 1, all compression hydraulic cylinders 6 are fixed on the frame 1), and the compression hydraulic cylinder 6 can pass through the support roller seat 5 drives the supporting roller 4 to move up and down.

As shown in Figure 1, when working, press the silicon steel (belt shape) tightly between the toothed roller 2 and the pressure roller 3, pull the silicon steel (belt shape) forward, and press the silicon steel (belt shape) in the joint between the toothed roller 2 and the pressure roller 3 Under the action, the engraving teeth (helical) on the engraving roller 2 engrave uniform grooves on the silicon steel (belt), the size of the groove is related to the size of the helical teeth and the pressure exerted by the pressure roller 3 on the silicon steel (belt) Related, by adjusting the output pressure of the compression hydraulic cylinder 6 (the output pressure of the compression hydraulic cylinder 6 can be adjusted in many ways, such as, through the proportional pressure valve to accurately control), drive the backup roller 4 to move up and down to adjust the pressure of the backup roller 4. The pressure transmitted by the roller 3 plays the role of adjusting the size of the groove (this embodiment processes grooves with a width of 50um, a depth of 15um, and a distance of about 5mm to reduce the iron loss by about 10%); 3 are arranged in the axial direction, and each pair of supporting rollers 4 can be controlled separately. If necessary, the corresponding pressure can be adjusted according to the thickness or stress distribution along the axial direction of the silicon steel (belt) to make the groove more uniform.

As shown in Fig. 2 and Fig. 4, in this embodiment, the pressure roller device of the silicon steel mechanical scoring machine also includes two synchronous shafts 8, and the two synchronous shafts 8 respectively pass through all the support roller seats 5, and the two synchronous shafts 8 is in the same direction as the pressure roller 3 and is symmetrical with respect to the pressure roller 3, and the shaft hole diameter of the synchronous shaft 8 on the supporting roller base 5 is slightly larger than the outer diameter of the synchronous shaft 8. Due to the dimensional deviation of the compression hydraulic cylinder 6 cylinder body and related parts, the movement of multiple compression hydraulic cylinders 6 may be inconsistent when the compression hydraulic cylinder 6 is lowered. When the strokes of the compression hydraulic cylinders 6 differ greatly, It will cause the support rollers 4 to lose mutual restraint, or even get stuck with each other and cannot be lowered. Set the synchronous shaft 8 and design a certain gap between the synchronous shaft 8 and the shaft hole, allowing the stroke difference of each pair of support rollers 4 to be within this range. Floating within the gap range, when the stroke difference exceeds the gap range, the synchronous shaft 8 acts as a restraint to ensure the synchronous movement of each support roller 4 and prevent the support roller 4 from being stuck.

As shown in Figures 2 and 3, in this embodiment, the two ends of the pressure roller 3 are respectively arranged on two pressure roller seats 7, and the two pressure roller seats 7 are respectively fixed on two supporting roller seats 5 located at the two ends. Above, the pressure roller seat 7 is provided with a straight line groove, the end of the pressure roller 3 is as wide as the straight line groove, and the length of the straight line groove is greater than the stroke of the pressure roller 3 . The pressing roller 3 can only move up and down along the linear slot, and the function of the pressing roller seat 7 is not to support but to limit the left and right movement of the pressing roller 3 .

As shown in FIG. 4 , in this embodiment, slide plates 9 are fixed on both sides of all supporting roller seats 5 . After installation, all the slide plates 9 are attached to the vertical straight plates on the frame 1 of the silicon steel mechanical scoring machine, the support roller seat 5 is limited between the vertical straight plates on both sides, and the slide plates 9 are attached to the vertical plates on the frame 1. Move up and down the bar.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present invention.

Claims (3)

1. A pressure roller device for silicon steel mechanical scoring machine, characterized in that: it includes pressure rollers and support rollers in the same direction, the pressure rollers are supported by two rows of support rollers below, and the two rows of support rollers are respectively arranged along the axial direction of the pressure rollers And it forms the shape of "pin" with the pressure roller. The two rows of support rollers correspond one by one in the radial direction of the pressure roller. Each pair of corresponding support rollers is set on the same support roller seat. Cylinder connection, the compression hydraulic cylinder can drive the support roller to move up and down through the support roller seat; The pressure roller device of the silicon steel mechanical scoring machine also includes two synchronous shafts, the two synchronous shafts pass through all the support roller seats respectively, the two synchronous shafts are in the same direction as the pressure rollers and are symmetrical about the pressure rollers, and the synchronous shafts on the support roller seats The shaft hole diameter is slightly larger than the outer diameter of the synchronous shaft. 2. The pressure roller device of silicon steel mechanical scoring machine as claimed in claim 1, characterized in that: the two ends of the pressure roller are respectively arranged on two pressure roller seats, and the two pressure roller seats are respectively fixed on two On the supporting roller seat, the pressure roller seat is provided with a straight-line clamping groove, the end of the pressure roller is as wide as the linear clamping groove, and the length of the straight-line clamping groove is greater than the stroke of the pressure roller. 3. The pressing roller device of silicon steel mechanical scoring machine according to claim 1, characterized in that: both sides of all supporting roller seats are fixed with slide plates.