CN118682626A - A system and method for deburring a blank - Google Patents

Abstract

The invention belongs to the field of stamping die processing, and relates to a blanking piece deburring system and a blanking piece deburring method. One surface of the blanking piece with burrs downwards enters the blanking piece deburring device along the direction of the feeding hole, the blanking piece deburring device sequentially conveys the blanking piece along the direction of the feeding hole, the abrasive belt roller rapidly polishes and removes burrs on the lower surface of the blanking piece, and then the blanking piece deburring device conveys the blanking piece to the discharging hole through the second conveying roller system and the third conveying roller system to finish the deburring process. The blanking piece deburring system and the blanking piece deburring method can realize complete removal of burrs on the lower surface of the blanking piece, can adapt to blanking pieces with different thicknesses, and are high in production efficiency and good in burr removal effect.

Description

A system and method for deburring a blank

Technical Field

The invention belongs to the field of stamping die processing, and in particular relates to a system and method for deburring a blanking sheet.

Background Art

Blanking refers to the method of separating one part of the sheet metal placed between the upper and lower dies from the other part by tearing them apart under the pressure of a press to obtain a workpiece of the required shape and size. Blanking is one of the most commonly used process methods in metal sheet forming.

Burrs are one of the most common defects in the blanking process. The presence of burrs has a potential impact on the processing quality of the product and the final product. For high-precision applications, even tiny burrs may cause assembly difficulties or functional failure. In addition, the presence of burrs may cause scratches or accidental injuries.

Summary of the invention

The object of the present invention is to provide a blanking sheet deburring system and method to overcome the above technical defects.

In order to solve the above technical problems, the present invention provides a blanking sheet deburring system, comprising:

A first conveying roller system is arranged downstream of the blanking process of the blanking sheet to convey and press the blanking sheet;

A blanking sheet deburring device, wherein the blanking sheet deburring device is arranged behind the first conveying roller system;

A second conveying roller system is arranged behind the blanking sheet deburring device to convey and press the blanking sheet;

A third conveying roller system is arranged behind the second conveying roller system to convey and press the blanking sheet;

Among them, the punched sheet deburring device includes a pressure roller and a sand belt roller, the pressure roller and the sand belt roller constitute a working roller system suitable for the punched sheet to pass through, and the sand belt roller is facing the burred surface of the punched sheet; the punched sheet deburring device also includes a steering roller, and a sand belt is mounted on the sand belt roller and the steering roller. The steering roller serves as a passive transmission roller to keep the sand belt in a tensioned state during operation.

According to a blanking sheet deburring system, the blanking sheet deburring device further comprises:

The first compression spring is suspended above the pressure roller, one end of the first compression spring is fixed, and the other end is connected to the pressure roller.

According to a blanking sheet deburring system, the pressure roller is located directly above the abrasive belt roller; and the abrasive belt roller is located above the steering roller.

According to a blanking sheet deburring system, the first conveying roller system, the second conveying roller system and the third conveying roller system are all composed of upper conveying rollers and lower conveying rollers arranged up and down;

A second compression spring is suspended on each of the upper conveying rollers. One end of the second compression spring is fixed, and the other end is connected to the upper conveying roller.

This embodiment also provides a blanking sheet deburring method, which is suitable for a blanking sheet deburring system. The blanking sheet deburring method includes:

Feeding the blanking sheet into the first conveying roller system along the direction of the feed inlet, wherein the burr side of the blanking sheet with burrs faces downward;

The first conveying roller presses and conveys the blanking sheet to between the pressing roller and the abrasive belt roller, and the abrasive belt roller grinds and removes burrs from the burred surface of the blanking sheet by the abrasive belt during rotation;

Complete the deburring process.

According to a blanking sheet deburring method, before the deburring process is completed, the blanking sheet sent out from the blanking sheet deburring device enters the second conveying roller system;

The second conveying roller system continues to convey the blanked sheet into the third conveying roller system;

The third conveying roller conveys the blanked sheet out of the discharge port;

Before deburring begins, the blank deburring system is in an initial state, wherein the first compression spring and the second compression spring are both in a compressed state, and the pressure roller and the abrasive belt roller are tangent to each other in the initial state, and the upper conveying roller and the lower conveying roller of each conveying roller system are tangent to each other in the initial state.

The present invention provides a blanking sheet deburring system and method, wherein the blanking sheet deburring system is composed of a blanking sheet deburring device and a plurality of conveying roller systems, wherein the blanking sheet deburring device is mainly composed of a pressure roller and an abrasive belt roller. The blanking sheet enters the blanking sheet deburring system with the burred side facing downward along the direction of the feed port, and is sequentially conveyed through the first conveying roller system, and the blanking sheet deburring device quickly grinds the lower surface of the blanking sheet to remove the burrs, and then is conveyed through the second conveying roller system and the third conveying roller system to the discharge port, completing the deburring process.

When the blanking sheet passes through, the upper conveyor rollers and pressure rollers of the multiple conveyor roller systems will be passively lifted due to the presence of compression springs, which can adapt to the deburring of blanking sheets of different thicknesses. In addition, for plates of different materials, the friction and positive pressure between the conveyor rollers and the blanking sheet can be increased or decreased by replacing compression springs with different stiffness, so that the peripheral conveyor rollers can achieve stable conveying when the blanking sheet is deburred, preventing the blanking sheet from deviating uncontrollably during deburring.

In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a blanking sheet deburring device.

FIG. 2 is a schematic diagram of the structure of a blanking sheet deburring system.

Description of reference numerals:

10. Deburring device for blanking sheets;

11. Pressure roller; 110. First compression spring;

12. Abrasive belt roller;

13. Steering roller;

14. Abrasive belt;

20. Punching sheet deburring system;

21. The first conveying roller system;

22. The second conveying roller system;

23. The third conveying roller system;

24. Second compression spring.

DETAILED DESCRIPTION

The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that, in the present invention, the top, bottom, left and right in the figure are regarded as the top, bottom, left and right of the blanking sheet deburring device described in this specification.

The exemplary embodiments of the present invention are now described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units/elements are marked with the same reference numerals.

Unless otherwise specified, the terms (including technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

The blanking sheets described below refer to parts that have been formed by blanking.

The arrows in Figures 1 and 2 represent the rotation direction of the rollers.

This embodiment relates to a blanking sheet deburring device, see Fig. 1, the blanking sheet deburring device 10 comprises a pressure roller 11 and an abrasive belt roller 12. The pressure roller 11 and the abrasive belt roller 12 form a working roller system suitable for the blanking sheet to pass through, and the abrasive belt roller 12 faces the burred surface of the blanking sheet.

In some embodiments, the axial center lines of the pressure roller 11 and the abrasive belt roller 12 are parallel, and the pressure roller 11 is located directly above the abrasive belt roller 12. That is, as shown in FIG1 , the pressure roller 11 and the abrasive belt roller 12 are arranged up and down, and the blanking sheet passes between the two rollers to remove burrs.

An abrasive belt 14 is wound around the roller surface of the abrasive belt roller 12 .

Generally, the burrs of the blanking sheet are facing downward (this surface is the burr surface), so the burr surface is placed close to the abrasive belt roller 12, and the abrasive belt roller 12 and the pressure roller 11 are used as active transmission rollers to remove the burrs of the blanking sheet during the rotation process.

In some embodiments, the blanking sheet deburring device 10 further includes a steering roller 13. As shown in FIG. 1 , an abrasive belt 14 is mounted on the abrasive belt roller 12 and the steering roller 13. The steering roller 13 serves as a passive transmission roller to keep the abrasive belt 14 in a tensioned state during operation.

The burrs of the blanking sheet are removed by the abrasive belt 14 mounted on the abrasive belt roller 12 and the deflection roller 13. During the rotation process, the abrasive belt 14 continuously changes the contact position with the blanking sheet to ensure the deburring effect.

In some embodiments, as shown in Fig. 1 , the abrasive belt roller 12 is located directly above the steering roller 13. In practical applications, the relative positions of the abrasive belt roller 12 and the steering roller 13 can be adjusted according to the current environment and are not limited to those shown in Fig. 1 .

In some embodiments, the blanking sheet deburring device 10 further includes a first compression spring 110 , which is suspended above the pressure roller 11 . One end of the first compression spring 110 is fixed (eg, fixed to a frame), and the other end is connected to the pressure roller 11 .

The first compression spring 110 has a certain amount of compression in the initial state, and the abrasive belt roller 12 and the pressure roller 11 are tangent in the initial state. When the blanking sheet passes through, the pressure roller 11 is passively lifted due to the presence of the first compression spring 110, so that the blanking sheet with different thicknesses can be deburred.

This embodiment also provides a blanking sheet deburring system, see FIG2 , the blanking sheet deburring system 20 comprises a first conveying roller system 21 and a blanking sheet deburring device 10. The first conveying roller system 21 is arranged downstream of the blanking process of the blanking sheet to convey and press the blanking sheet, and the blanking sheet deburring device 10 is arranged after the first conveying roller system 21.

The burred surface of the blank is fed downward into the first conveying roller system 21, which presses and conveys the blank to between the pressing roller 11 and the abrasive belt roller 12. The abrasive belt roller 12 grinds the burred surface of the blank with the abrasive belt 14 to remove the burrs during the rotation process.

The first conveying roller system 21 functions to press and convey the blanked sheets.

In order to realize safe transportation of the blanks, a plurality of first conveying roller systems 21 may be arranged upstream of the blank deburring device 10 , or, as shown in FIG. 2 , only one first conveying roller system 21 may be arranged.

The blank deburring system 20 further includes a second conveying roller system 22 and a third conveying roller system 23 .

The second conveying roller system 22 is arranged behind the blanking sheet deburring device 10 to convey and press the blanking sheet; the third conveying roller system 23 is arranged behind the second conveying roller system 22 to convey and press the blanking sheet.

That is, a plurality of conveying roller systems may be arranged downstream of the blank deburring device 10 , or as shown in FIG. 2 , a second conveying roller system 22 and a third conveying roller system 23 may be arranged.

It should be noted here that, in order to maintain smooth transportation of the blanks, in some embodiments, the planes of the roller systems and the blank deburring device 10 through which the blanks pass are on the same horizontal plane.

The spacing and quantity of the second conveying roller system 22 and the third conveying roller system 23 can be adjusted as needed.

The rollers of the three conveying roller systems are all active transmission rollers.

The first conveying roller system 21, the second conveying roller system 22 and the third conveying roller system 23 are all composed of upper conveying rollers and lower conveying rollers arranged up and down. A second compression spring 24 is suspended on each upper conveying roller, one end of which is fixed (such as fixed to the frame) and the other end is connected to the upper conveying roller.

The conveying roller system has two main functions. One is to convey the blank during the deburring process, and the other is to press the blank during deburring to prevent the blank from being out of control during deburring.

For plates of different materials, the friction and positive pressure between the conveyor roller and the blanking sheet can be increased or decreased by replacing the second compression spring 24 with different stiffness, so that the conveyor roller can achieve stable conveying when the blanking sheet is deburred, and prevent the blanking sheet from deviating out of control. The conveyor roller refers to the upper conveyor roller and the lower conveyor roller in the conveyor roller system.

A second compression spring 24 is suspended above the upper conveying roller. The second compression spring 24 has a certain amount of compression in the initial state. The upper conveying roller and the lower conveying roller are tangent to each other in the initial state.

This embodiment also provides a blanking sheet deburring method, which is suitable for the blanking sheet deburring system 20. The blanking sheet deburring method includes:

Step 100, please refer to FIG. 1, the blanking sheet is fed into the first conveying roller system 21 along the direction of the feed inlet, wherein the burr side of the blanking sheet with the burr faces downward.

Since the burrs on the blanks are generally facing downward, the blank deburring system 20 can completely remove the burrs on the lower surface of the blanks.

Step 200, the first conveying roller system 21 presses and conveys the blank to between the pressing roller 11 and the abrasive belt roller 12, and the abrasive belt roller 12 grinds the burr surface of the blank with the abrasive belt 14 to remove burrs during the rotation process, thereby completing the deburring process.

In some embodiments, before completing the deburring process, step 300 is also included, in which the blanking sheet sent out from the blanking sheet deburring device 10 enters the second conveying roller system 22, and the second conveying roller system 22 continues to convey the blanking sheet into the third conveying roller system 23, and the third conveying roller system 23 conveys the blanking sheet out of the discharge port.

The upper conveying roller and the pressure roller 11 of the three pairs of conveying rollers are passively lifted up by the compression springs (the first compression spring 110 and the second compression spring 24) as the blank passes through, so as to deburr blanks of different thicknesses.

Before deburring begins, the blank deburring system 20 is in an initial state, wherein the first compression spring 110 and the second compression spring 24 are both in a compressed state, and the pressure roller 11 and the abrasive belt roller 12 are tangent to each other in the initial state, and the upper conveying roller and the lower conveying roller of each conveying roller system are tangent to each other in the initial state.

For plates of different materials, the friction and positive pressure between the conveyor roller and the blank can be increased or decreased by replacing compression springs with different stiffness (the first compression spring 110 and the second compression spring 24), so that the conveyor roller can achieve stable conveyance when the blank is deburred and prevent the blank from deviating out of control.

Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims (6)

1. A blanking piece deburring system, comprising:

A first conveying roller system (21) which is arranged at the downstream of the blanking process of the blanking sheet and is used for conveying and compacting the blanking sheet;

A blanking sheet deburring device (10), the blanking sheet deburring device (10) being arranged after the first conveying roller train (21);

a second conveying roller system (22) which is arranged behind the blanking sheet deburring device (10) and is used for conveying and compacting the blanking sheet;

A third conveying roller system (23) arranged behind the second conveying roller system (22) for conveying and pressing the blanking sheet;

The blanking piece deburring device (10) comprises a press roll (11) and an abrasive belt roll (12), wherein the press roll (11) and the abrasive belt roll (12) form a working roll system suitable for the blanking piece to pass through, and the abrasive belt roll (12) is opposite to a burr surface of the blanking piece; the blanking piece deburring device (10) further comprises a steering roller (13), the abrasive belt roller (12) and the steering roller (13) are sleeved with an abrasive belt (14), and the steering roller (13) serves as a driven roller to enable the abrasive belt (14) to be in a tensioning state during working.

2. The blanking sheet deburring system of claim 1, characterized in that said blanking sheet deburring apparatus (10) further comprises:

The first compression spring (110) is hung above the compression roller (11), one end part of the first compression spring (110) is fixed, and the other end part of the first compression spring is connected with the compression roller (11).

3. Blanking sheet deburring system according to claim 1, characterized in that the press roll (11) is located directly above the belt roll (12); the abrasive belt roller (12) is positioned above the steering roller (13).

4. The blanking sheet deburring system as set forth in claim 2, characterized in that said first conveying roller system (21), said second conveying roller system (22) and said third conveying roller system (23) are composed of upper conveying rollers and lower conveying rollers arranged up and down;

A second compression spring (24) is suspended on each upper conveying roller, one end part of the second compression spring (24) is fixed, and the other end part of the second compression spring is connected with the upper conveying roller.

5. A blanking piece deburring method adapted to the blanking piece deburring system of claim 4, comprising:

Feeding the blanking sheet into the first conveying roller system (21) along the direction of a feed port, wherein the burr surface of the blanking sheet with burrs faces downwards;

The first conveying roller system (21) compresses and conveys the blanking sheet to a position between the compression roller (11) and the abrasive belt roller (12), and the abrasive belt roller (12) polishes and removes burrs on the burr surface of the blanking sheet through the abrasive belt (14) in the rotating process;

And (5) finishing the deburring process.

6. The blanking sheet deburring method according to claim 5, characterized in that the blanking sheet fed out from the blanking sheet deburring device (10) enters the second conveying roller system (22) before the deburring process is completed;

The second conveying roller system (22) continuously conveys the blanking sheet into the third conveying roller system (23);

the third conveying roller system (23) conveys the blanking sheet and sends the blanking sheet out of the discharge hole;

Before starting deburring, the blanking sheet deburring system (20) is in an initial state, wherein the first compression spring (110) and the second compression spring (24) are both in a compressed state, and the press roll (11) and the belt roll (12) are tangent in an initial state, and the upper and lower conveying rolls of each conveying roll train are tangent in an initial state.