Opposite round steel bending die with rotating bearings

Abstract

The opposite round steel bending die comprises a lower die base, a lower die plate installed on the lower die base, an upper die base opposite to the lower die base and an upper die plate installed at the bottom of the lower die base, an installation groove is formed in the lower die plate in a concave mode, a floating block is installed at the center position of the installation groove through an elastic guide rod, and the floating block and the lower die base are oppositely arranged. A forming block matched with the floating block in an aligned mode is arranged on the upper die plate. Two pulley type bending forming assemblies are symmetrically arranged in the mounting groove with the floating block as the center, oppositely, two plug pin sets matched with the pulley type bending forming assemblies are arranged on the upper die plate, and each plug pin set is composed of two plug pins with working slopes. According to the bending die, the round steel can move more smoothly in the bending process through the bearing rotating design, the initial impact force between the die and the round steel is reduced, and therefore the risk of surface die marks is greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of bending dies, and in particular to an opposing round steel bending die with rotating bearings. Background Art

[0002] Existing round steel bending dies play an important role in the steel processing process, bending the round steel material into a predetermined shape by applying a certain pressure. However, in the traditional bending process, round steel parts usually adopt a fixed structure, that is, the round steel parts are relatively fixed during the bending process, and the mold applies the bending movement. When this fixed structure contacts the mold surface with the round steel material, the friction and pressure generated often cause mold marks to appear on the surface of the round steel after bending, which not only affects the appearance of the product, but also may weaken its mechanical properties to a certain extent. Especially in some application scenarios with high surface requirements, such as architectural decoration and precision machinery manufacturing, the mold mark problem is particularly prominent.

[0003] In the prior art, in order to reduce the appearance of die marks, a method of applying a lubricant on the mold surface or covering it with a soft material is usually adopted. However, these methods have some significant shortcomings in practical applications. First, the lubricant is easily consumed during the processing, resulting in the need for frequent replenishment, which increases production costs and process complexity. Secondly, although the use of soft materials to cover the mold surface reduces die marks to a certain extent, it is often impossible to completely avoid them, and the soft material itself is easy to wear, has a short service life, and needs to be replaced frequently. In addition, these methods may also generate pollutants during the processing process, affecting the cleanliness of the production environment and the safety of operation.

[0004] These shortcomings are mainly due to the limitations of existing mold design and material selection. In traditional mold design, the hardness of the mold and the hardness of the round steel material do not match, resulting in excessive friction and difficult to avoid mold marks. In terms of material selection, the existing soft covering materials cannot meet the requirements of high wear resistance and low friction coefficient at the same time, resulting in unsatisfactory use effects. These problems make it difficult for the existing round steel bending process to ensure product quality while taking into account production efficiency and cost control.

[0005] In order to solve these problems, it is of great significance and value to develop a new bearing rotating opposing round steel bending die. Utility Model Content

[0006] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and to provide a bearing-rotating opposed round steel bending die. The bearing-rotating design of the bending die enables the round steel to move more smoothly during the bending process, reduces the initial impact force between the die and the round steel, and thus greatly reduces the risk of surface mold marks. The opposed design can ensure that the force during the bending process is more uniform, further improving the surface quality and overall performance of the product.

[0007] To achieve the above-mentioned purpose, the present application discloses a bearing-rotating opposed round steel bending die, comprising a lower die base, a lower die plate installed on the lower die base, an upper die base opposite to the lower die base, and an upper die plate installed at the bottom of the lower die base, wherein the lower die plate is concavely provided with a mounting groove, a floating block is installed at the center of the mounting groove through an elastic guide rod, and correspondingly, a forming block that cooperates with the floating block is provided on the upper die plate; two pulley-type bending and forming assemblies are also symmetrically arranged in the mounting groove with the floating block as the center, and correspondingly, two groups of pin groups that cooperate with the pulley-type bending and forming assemblies are provided on the upper die plate, and each group of pin groups consists of two pins with working inclined surfaces; the pulley-type bending and forming assembly comprises a lower end mounted in the mounting groove through a rotating shaft The cam is provided with two flush guide slopes, and the two guide slopes are respectively matched with a pin in the pin group, and the downward pin group pushes the pulley fixing block to rotate around the lower end rotating shaft and approach the forming block; the working slope comprises a first section slope located at the top and a second section slope located at the bottom, the inclination angle of the first section slope is smaller than that of the second section slope, and a rubber layer is attached to the second section slope, and correspondingly, the guide slope comprises an upper guide surface matched with the first section slope and a lower guide surface matched with the second section slope, and when the pin is matched with the pulley fixing block, the second section slope contacts and matches with the lower guide surface before the first section slope contacts and matches with the upper guide slope.

[0008] In some embodiments, positioning brackets are provided on both sides of the lower template, and the mold is installed and fixed by the positioning brackets.

[0009] In some embodiments, there is at least one guide column with elastic reset function between the upper mold base and the lower mold base.

[0010] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0011] 1. Reduce mold marks: The rubber layer provides an initial buffering effect, making the contact between the pulley bending forming component and the round steel smoother during the bending process, significantly reducing the mold marks left by the mold on the surface of the round steel and improving the surface quality of the finished product.

[0012] 2. Improve molding accuracy: Since the rubber layer can buffer the impact of the initial contact, the bending force is gradually applied to the round steel, reducing stress concentration and ensuring the stability and molding accuracy of the molding process.

[0013] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] After reading the following detailed description in conjunction with the accompanying drawings, you will have a better understanding of various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges. In the accompanying drawings:

[0015] Figure 1 It is a structural decomposition diagram of an embodiment disclosed in the present application.

[0016] Figure 2 It is a schematic diagram of the matching structure of a latch and a pulley fixing block in an embodiment disclosed in the present application. DETAILED DESCRIPTION

[0017] The present disclosure will be described below with reference to the accompanying drawings, wherein the accompanying drawings illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0018] It should be understood that the same reference numerals represent the same elements throughout the drawings. In the drawings, the dimensions of certain features may be distorted for clarity.

[0019] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical terms and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification.

[0020] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items. Example

[0021] like Figure 1 , 2 As shown, this embodiment discloses an exemplary structure for achieving the technical purpose of this application, specifically a bearing rotating opposed round steel bending die, which is intended to provide a high-precision, low-wear round steel bending solution. The die includes a lower die base 1, a lower die plate 2, an upper die base 3, an upper die plate 4, a mounting groove 5, a floating block 6, a forming block 7, a pulley type bending forming assembly 8 and a latch group 9.

[0022] Specifically, the lower die base 1 is the base of the entire die, and is made of high-strength steel, having good rigidity and durability.

[0023] The lower mold plate 2 is fixedly mounted on the lower mold base 1 by bolts or welding to ensure its firmness and stability.

[0024] Specifically, the upper die base 3 is arranged opposite to the lower die base 1 and is connected via a guide column (not shown in the figure) during operation to ensure that the dies remain parallel and synchronized during the bending process.

[0025] It should be understood that, in some embodiments, the guide pillars between the upper die base 3 and the lower die base have an elastic reset function, and can automatically reset after the bending action is completed, thereby improving work efficiency.

[0026] More specifically, a mounting groove 5 is recessed on the lower template 2 , and a floating block 6 is installed at the center of the mounting groove 5 via an elastic guide rod (not shown in the figure).

[0027] It should be understood that the floating block 6 is made of wear-resistant composite material, which has good elasticity and strength to meet the bending requirements of round steel of different specifications. The floating block 6 is connected to the lower template 2 through an elastic guide rod, so that it can float freely within a certain range, ensuring a close fit with the round steel during the forming process.

[0028] In this embodiment, a forming block 7 is provided on the upper mold plate 4 and is matched with the floating block 6. The forming block 7 is made of high-strength alloy steel, and the surface is hardened to ensure that it is not easy to wear during the working process.

[0029] The forming block 7 and the floating block 6 are precisely docked when the mold is closed, and the alignment accuracy of the two is guaranteed through precision machining, thereby ensuring the accuracy of round steel bending.

[0030] Furthermore, two pulley-type bending forming components 8 are symmetrically arranged in the installation groove 5 with the floating block 6 as the center. Each component consists of a pulley fixing block 801 and a bending pulley 802. The lower end of the pulley fixing block 801 is installed in the installation groove 5 through a rotating shaft, and the upper end is installed with the bending pulley 802 through a rotating shaft. The pulley fixing block 801 is made of high-strength alloy material, and as a direct contact part of the bending process, the bending pulley 802 is made of wear-resistant steel, and the surface is hardened to ensure that it is not easy to wear in long-term use.

[0031] Furthermore, two guiding inclined surfaces 803 are provided on the pulley fixing block 801, and the inclined surfaces 803 are aligned with a pin 901 in the pin group 9 installed on the upper template 4. Each pin group 9 includes two pins 901 with working inclined surfaces 902, and the working inclined surfaces 902 are divided into a first inclined surface 9001 at the top and a second inclined surface 9002 at the bottom. The first inclined surface 9001 has a small inclination angle and is used for initial positioning and guiding; a rubber layer 9003 is attached to the second inclined surface 9002 to provide a buffering function, reduce the direct friction between the mold and the round steel during the bending process, and prevent the formation of mold marks.

[0032] In contrast to the above structure, the guiding inclined surface 803 is also a two-stage structure, including an upper guiding surface 8001 aligned with the first inclined surface 9001 and a lower guiding surface 8002 aligned with the second inclined surface 9002 .

[0033] When the mold is working, the downward bolt group 9 pushes the pulley fixing block 801 to rotate around the lower end shaft, and the pulley fixing block 801 approaches the forming block 7, and the bending pulley 802 applies pressure to the round steel to complete the bending process. In this process, the rubber layer 9003 of the second section of the inclined surface 9002 first contacts the lower guide surface 8002, providing initial buffering, reducing friction and impact, and protecting the surface of the round steel.

[0034] In actual operation, the bending process is as follows:

[0035] Preparation stage: Place the round steel to be processed between the lower template 4 and the upper template 2 of the mold, so that the center line of the round steel is aligned with the center of the floating block 6 and the forming block 7.

[0036] Start-up phase: Start the power system of the mold, and the latch group 9 starts to move downward. The latch group 9 with the working inclined surface 902 moves downward.

[0037] Initial contact stage: When the latch assembly 9 continues to move downward, the rubber layer 9003 on the second section of the inclined surface 9002 begins to contact the lower guide surface 8002 on the pulley fixing block 801. The softness and elasticity of the rubber layer 9003 provide an initial buffering effect for the bending pulley.

[0038] Buffering stage: The rubber layer 9003 absorbs part of the force at the initial contact, reducing the direct impact force between the pulley fixing block 801 and the round steel, and avoiding the formation of mold marks. The role of the rubber layer 9003 is particularly important in this stage, which can significantly reduce the pressure concentration on the round steel surface and protect the round steel surface.

[0039] Forming stage: The pulley fixing block 801 continues to rotate around the lower end shaft, the first section of the inclined surface 9001 contacts the upper guide 8001, and the bending pulley 802 gradually approaches the forming block 7, and finally applies sufficient pressure to the round steel to complete the bending process. At this time, the floating block 6 also floats upward through the elastic guide rod to adapt to the deformation of the round steel and ensure the bending accuracy.

[0040] Reset stage: After the bending is completed, the latch assembly 9 moves upward, and the pulley fixing block 801 and the bending pulley 802 are automatically reset under the action of the elastic guide rod and the spring, ready for the next operation.

[0041] Through the above detailed description of the working process, it can be seen that the initial buffering effect of the rubber layer 9003 plays a key role in the bending process, effectively reducing the friction and impact between the mold and the round steel, avoiding the formation of mold marks, and improving the surface quality of the finished product. At the same time, the precise matching and reasonable design between the various components ensure the efficiency, stability and durability of the mold.

[0042] In addition, in this embodiment, as a technical option, positioning brackets 10 are provided on both sides of the lower mold plate 2 to ensure accurate positioning and fixation of the mold during installation. The positioning brackets 10 are made of high-strength alloy steel, and a mechanical locking device or a quick clamping device is used to achieve a stable installation of the mold to prevent displacement or loosening of the mold during operation.

[0043] In summary, this embodiment provides a detailed description of the mold structure and a specific explanation of the working principle, so that those skilled in the art can understand and implement the invention, thereby providing an efficient and reliable round steel bending solution.

[0044] Although the exemplary embodiments of the present disclosure have been described, it should be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the scope of protection of the present disclosure as defined by the claims. The present disclosure is defined by the appended claims, and the equivalents of these claims are also included.

Claims

1. A bearing rotating opposed round steel bending die, characterized in that: include: A lower die base, a lower die plate installed on the lower die base, an upper die base opposite to the lower die base, and an upper die plate installed at the bottom of the lower die base, wherein the lower die plate is concavely provided with a mounting groove, a floating block is installed at the center of the mounting groove through an elastic guide rod, and relatively, a forming block that matches the floating block is provided on the upper die plate; two pulley-type bending forming assemblies are symmetrically arranged in the mounting groove with the floating block as the center, and relatively, two groups of pin groups that match the pulley-type bending forming assemblies are provided on the upper die plate, and each group of pin groups consists of two pins with working inclined surfaces; the pulley-type bending forming assembly includes a pulley fixing block installed in the mounting groove through a rotating shaft at the lower end, and a pulley fixing block installed on the pulley fixing block through a rotating shaft A bent pulley at the upper end of the fixed block; the pulley fixing block is provided with two flush guide inclined surfaces, and the two guide inclined surfaces are respectively aligned with a pin in the pin group, and the downward pin group pushes the pulley fixing block to rotate around the lower end rotating shaft and approach the forming block; the working inclined surface comprises a first section inclined surface located at the top and a second section inclined surface located at the bottom, the inclination angle of the first section inclined surface is smaller than that of the second section inclined surface, and a rubber layer is attached to the second section inclined surface, and correspondingly, the guide inclined surface comprises an upper guide surface matched with the first section inclined surface and a lower guide surface matched with the second section inclined surface, and when the pin is matched with the pulley fixing block, the second section inclined surface contacts and matches with the lower guide surface before the first section inclined surface contacts and matches with the upper guide inclined surface.

2. A bearing rotating opposed round steel bending die as claimed in claim 1, characterized in that: Positioning brackets are arranged on both sides of the lower template, and the mold is installed and fixed by the positioning brackets.

3. The bearing rotating opposed round steel bending die as claimed in claim 1, characterized in that: At least one guide column with elastic reset function is arranged between the upper die seat and the lower die seat.

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