Bending machine profile bending die

Abstract

A profile bending die for a bending machine is implemented by installing a profile bending die on a three-roll bending machine. The profile bending die is detachable and comes in various models, consisting of an inner roller, an outer roller, a flange ring, and a structural assembly plate. Multiple models are available to accommodate the bending needs of profiles of various sizes and specifications. The profile bending die moves at the same speed as the driving or driven roller. One die is installed on the driving roller, or one die of the same model is installed on both the driving and driven rollers simultaneously. Each model of profile bending die corresponds to bending only one size of profile. This invention is rationally designed, making full use of existing three-roll profile bending machines and avoiding waste of equipment resources. The profile bending die of this invention has a simple structure, is quick and easy to assemble and disassemble, is small in size, and has a low cost. Using this profile bending die, various customized profiles such as H-beams, I-beams, angle steel, and channel steel can be processed, greatly satisfying market and engineering installation needs.

Description

Technical Field

[0001] This utility model relates to the field of profile bending machines, and in particular to a profile bending die for a bending machine. Background Technology

[0002] Three-roll bending machines are widely used profile rolling machines both domestically and internationally. Among them, plate rolling machines can only bend various types of plates. However, existing profile bending machines can only bend one type of profile, and different models of bending machines are required to bend different shapes of profiles. This type of bending machine has a narrow application range and cannot produce more personalized profiles required for engineering. In addition, it is expensive, but its utilization rate is low, the equipment is idle for a long time, wastes resources, and has high operating costs. To solve this problem, many explorations have been carried out in the field of bending machines. Chinese patent application number: CN201420324589.6 gives "A Profile Bending Machine", which proposes the concept of "...an active roller mold installed on the active roller (1); ..., a driven roller mold" in the claims. This concept can be understood as adding profile molds on the active roller and the driven roller. However, the claims and description of this patent document do not provide any textual record of realizing this concept, so it cannot be implemented. Chinese Patent Announcement No. CN 207695385 U discloses "A Bending Machine with Wide Applicability". This patented technology only achieves the purpose of bending plates of different thicknesses by adjusting the distance between the active roller and the driven roller. It cannot bend profiles such as concave or H-shaped. Summary of the Invention

[0003] The purpose of this invention is to solve the shortcomings of existing three-roller bending machines that cannot bend various personalized profiles, and to provide a bending die for a bending machine that can fully utilize existing three-roller profile bending machines for profile bending operations, without wasting equipment energy, with a simple structure, quick assembly and disassembly, small size, low cost, easy operation, and the ability to process various personalized profiles.

[0004] The objective of this utility model can be achieved. This utility model's profile bending die for a bending machine includes a driving roller and a driven roller. The profile bending die for this utility model is characterized in that: the profile bending die is mounted on the driving roller or the driven roller; the profile bending die has several models of varying sizes; each model of profile bending die is provided in several units; one profile bending die is mounted on the driving roller, or one of the same model is mounted on both the driving roller and the driven roller simultaneously; the profile bending die moves at the same speed as the driving roller or the driven roller; different models of profile bending dies are interchangeably installed on the three-roll bending machine to correspond to the desired profile shape.

[0005] This utility model relates to a profile bending die for a bending machine. The profile bending die comprises two semi-annular cylindrical bearings, a hollow cylindrical outer roller, two sets of wing plate retainers, and two structural assembly discs. The two bearings are connected and fixed to the inner roller via interface bolts at the end faces of the semi-annular bearings. The inner roller encircles either the driving roller or the driven roller. The outer roller is fitted onto the outer surface of the inner roller, and the length of the outer roller is less than the length of the inner roller. On each side of the outer roller, a set of wing plate retainers composed of two semi-annular bearings is installed on the inner roller. On the outer side of each set of wing plate retainers, a circular structural assembly is respectively provided on the inner roller. The structural combination plate is used to connect and fix the inner sleeve roller through a specific structure and the outer sleeve roller through connecting bolts. The connecting bolts position the wing plate abutment on the inner sleeve roller through the connecting holes of the wing plate abutment and clamp it between the outer sleeve roller and the structural combination plate. The outer sleeve roller, the wing plate abutment, and the structural combination plate form an annular groove. The wing plate for bending the profile is placed in the groove. The wing plate abutment forming the bottom of the groove constitutes a high and low wing plate support structure. The inner sleeve roller, the outer sleeve roller, the two sets of wing plate abutments, and the two structural combination plates are connected and combined to form a profile bending die.

[0006] This utility model relates to a profile bending die for a bending machine. The specific structure connecting the structural assembly disc and the inner sleeve roller is a tenon and mortise connection structure. The mortise is located on the center line of the two semi-circular vertical apexes of the inner sleeve roller. The tenons are symmetrically arranged on the inner wall of the structural assembly disc. The structural assembly disc is connected to the inner sleeve roller via the tenons and has a sliding connection trajectory within the mortise of the inner sleeve roller. Four bolt holes are symmetrically arranged on the wall of the structural assembly disc along the cross center line. The side wall of the outer sleeve roller has threaded blind holes corresponding to the bolt holes of the structural assembly disc. The structural assembly disc is fixedly connected to the outer sleeve roller via the bolt holes and connecting bolts through the threaded blind holes. The outer sleeve roller is clamped and fixed to the inner sleeve roller by the structural assembly disc and the wing plate retaining ring.

[0007] The present invention relates to a profile bending die for a bending machine, wherein the inner sleeve roller and the outer sleeve roller are fitted with a clearance of H9 / h9.

[0008] The difference between this utility model's profile bending die and existing technologies lies in that the profile bending die of this utility model is installed on a three-roller profile bending machine. The profile bending die is detachable, available in various models, and consists of an inner roller, an outer roller, a wing plate retainer, and a structural assembly plate. Multiple sizes are available to accommodate various profile sizes and specifications. One profile bending die is installed on the drive roller, or one of the same model is installed simultaneously on both the drive and driven rollers, moving at the same speed as the drive or driven rollers. Each model of profile bending die corresponds to the bending of a specific profile size. This utility model is rationally designed, making full use of existing three-roller profile bending machines and avoiding waste of equipment resources. The profile bending die of this utility model has a simple structure, is quick and easy to assemble and disassemble, is small in size, low in cost, and easy to operate. Using this utility model's profile bending die, various customized profiles such as H-beams, I-beams, angle steel, and channel steel can be processed, greatly satisfying market and engineering installation needs.

[0009] The profile bending die of this utility model will be further described below with reference to the accompanying drawings. The drawings are only schematic illustrations of the basic structure of the invention, and therefore only show the structure relevant to the invention. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the external appearance of the profile bending die of the profile bending machine of this utility model.

[0011] Figure 2 This is a schematic diagram of a profile bending die installed on the drive roller of a bending machine.

[0012] Figure 3 This is an exploded view of the parts of a profile bending and rolling die.

[0013] Figure 4 This is a schematic diagram showing the working state of a profile bending die installed only on the drive roller.

[0014] Figure 5 This is a schematic diagram showing the working state of the profile bending die installed on the drive roller and the driven roller.

[0015] In the diagram: 1-Driven roller, 2-Driven roller, 3-Bearing plate, 31-Inner roller, 4-Outer roller, 5-Wing plate retainer ring, 6-Structural combination plate, 7-Interface bolt, 8-Connecting bolt, 9-Profile bending die, a-Groove, b-Tongue groove, c-Tongue head, d-Threaded blind hole. Detailed Implementation

[0016] like Figure 2 , Figure 4 , Figure 5As shown, the profile bending die of this utility model includes a drive roller 1 and a driven roller 2. A profile bending die 9 is mounted on either the drive roller 1 or the driven roller 2. The profile bending die 9 comes in several models of varying sizes. Several of each model of profile bending die 9 are provided. One profile bending die 9 is mounted on the drive roller, or one of the same model is mounted simultaneously on both the drive roller 1 and the driven roller 2. The profile bending die 9 moves at the same speed as the drive roller 1 or the driven roller 2. Different models of profile bending dies 9 are interchangeably installed on the three-roller bending machine to correspond to the desired profile shape.

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, the profile bending die 9 consists of two semi-annular cylindrical bearings 3, a hollow cylindrical outer roller 4, two sets of wing plate retainers 5, and two structural combination plates 6. The two bearings 3 are connected and fixed to the inner roller 31 by interface bolts 7 through the end faces of the semi-annular bearings. The inner roller 31 surrounds the driving roller 1 or the driven roller 2. The outer roller 4 is sleeved on the outer surface of the inner roller 31. The length of the outer roller 4 is less than the length of the inner roller 31. On both sides of the outer roller 4, a set of wing plate retainers 5 composed of two semi-annular bearings is installed on the inner roller 31. On the outer side of the two sets of wing plate retainers 5, a circular structural combination plate 6 is set on the inner roller 31. The structural combination plate 6 is used to fix the inner roller 31 through a specific structure and to fix the outer roller 4 through connecting bolts 8. The connecting bolts 8 position the wing plate retainers 5 on the inner roller 31 through the connecting holes of the wing plate retainers 5 and clamp them between the outer roller 4 and the structural combination plate 6. The outer roller 4, the wing plate retaining ring 5, and the structural combination plate 6 form an annular groove a. The wing plate for bending the profile is placed in the groove a. The wing plate retaining ring 5 forming the bottom of the groove constitutes the high and low wing plate retaining structure. The inner roller 31, the outer roller 4, the two sets of wing plate retaining rings 5, and the two structural combination plates 6 are connected and combined to form the profile bending die 9.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the specific structure connecting the structural assembly disk 6 and the inner sleeve roller 31 is a tenon and mortise connection structure. The mortise and mortise b are located on the center line of the vertical apex of the two semi-circular vertices of the inner sleeve roller 31; the tenons c are symmetrically arranged on the inner wall of the structural assembly disk 6. The structural assembly disk 6 is connected to the inner sleeve roller 31 via the tenons c and has a sliding connection trajectory in the mortise and mortise b of the inner sleeve roller 31. Four bolt holes are symmetrically arranged on the wall of the structural assembly disk 6 along the cross center line, and the side wall of the outer sleeve roller 4 has threaded blind holes d corresponding to the bolt holes of the structural assembly disk 6. The structural assembly disk 6 is fixedly connected to the outer sleeve roller 4 via the bolt holes and connecting bolts 8 through the threaded blind holes d. The outer sleeve roller 4 is clamped and fixed to the inner sleeve roller 31 by the structural assembly disk 6 and the wing plate retaining ring 5.

[0019] In the profile bending die of this utility model bending machine, the inner sleeve roller 31 and the outer sleeve roller 4 are fitted with a clearance of H9 / h9.

[0020] like Figure 4 As shown, only one profile bending die is installed on the drive roller, which can be used to bend grooved profiles.

[0021] like Figure 5 As shown, one bending die of the same type is installed on each of the driving roller and the driven roller at the same time, which can be used to bend H-shaped profiles.

[0022] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A profile bending die for a bending machine, comprising a driving roller (1) and a driven roller (2) of the bending machine, characterized in that: The active roller (1) or driven roller (2) is provided with a profile bending die (9). The profile bending die (9) has several models with different sizes. Each model of profile bending die (9) is provided in several units. One profile bending die (9) is installed on the active roller, or one of the same model is installed on both the active roller (1) and the driven roller (2). The profile bending die (9) moves at the same speed as the active roller (1) or the driven roller (2). Different models of profile bending dies (9) are replaced and installed on the three-roll bending machine to correspond to the shape of the profile to be bent.

2. The profile bending die for the bending machine according to claim 1, characterized in that: The profile bending die (9) consists of two semi-annular cylindrical bearings (3), a hollow cylindrical outer roller (4), two sets of wing plate abutments (5), and two structural combination discs (6). The two bearings (3) are connected and fixed to form an inner roller (31) by interface bolts (7) through the semi-annular end faces. The inner roller (31) is wrapped around the driving roller (1) or the driven roller (2). The outer roller (4) is sleeved on the outer surface of the inner roller (31). The length of the outer roller (4) is less than the length of the inner roller (31). On both sides of the outer roller (4), a set of wing plate abutments (5) consisting of two semi-annular rings is installed on the inner roller (31). On the outer side of the two sets of wing plate abutments (5), a circular structural combination disc (6) is set on the inner roller (31) respectively. The disc (6) is connected and fixed to the inner sleeve roller (31) through a specific structure and to the outer sleeve roller (4) through a connecting bolt (8). The connecting bolt (8) positions the wing plate abutment (5) on the inner sleeve roller (31) through the connecting hole of the wing plate abutment (5) and is clamped between the outer sleeve roller (4) and the structural combination disc (6). The outer sleeve roller (4), the wing plate abutment (5), and the structural combination disc (6) form an annular groove (a). The wing plate of the bending profile is placed in the groove (a). The wing plate abutment (5) forming the bottom of the groove constitutes a high and low wing plate support structure. The inner sleeve roller (31), the outer sleeve roller (4), the two sets of wing plate abutments (5) and the two structural combination discs (6) are connected and combined to form a profile bending mold (9).

3. The profile bending die for the bending machine according to claim 2, characterized in that: The specific structure connecting the structural combination plate (6) and the inner sleeve roller (31) is a tenon and mortise connection structure. The mortise (b) is set on the center line of the vertical apex of the two brackets (3) of the inner sleeve roller (31). The tenon (c) is symmetrically set on the inner wall of the structural combination plate (6). The structural combination plate (6) is connected to the inner sleeve roller (31) through the tenon (c) and has a sliding connection trajectory in the mortise (b) of the inner sleeve roller (31). The wall of the structural combination plate (6) is symmetrically provided with four bolt holes on the cross center line. The side wall of the outer sleeve roller (4) is provided with threaded blind holes (d) corresponding to the bolt holes of the structural combination plate (6). The structural combination plate (6) is fixedly connected to the outer sleeve roller (4) through the bolt holes by the connecting bolts (8) and the threaded blind holes (d). The outer sleeve roller (4) is clamped and fixed on the inner sleeve roller (31) by the structural combination plate (6) and the wing plate abutment (5).

4. The profile bending die for the bending machine according to claim 3, characterized in that: The inner roller (31) and the outer roller (4) are fitted with a clearance of H9 / h9.

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