A closed ring forming die

Abstract

The utility model discloses a closed ring forming die, including upper die and lower die, the lower part of upper die is provided with the trumpet mouth type gap part, the middle part of upper die is provided with the upper through -hole, the upper through -hole is linked with trumpet mouth type gap part, be provided with the pressure rod in the upper through -hole, the lower die contains lower die holder, the symmetry of lower die holder is provided with the rotary block, the rotary block inserts trumpet mouth type gap part, and the symmetry center of rotary block is provided with lower support rod, the top of lower support rod is horizontally provided with the article block, the article block is used to set up the closed ring product of not closing, when the relative distance of upper die and lower die reduces, the pressure rod cooperates with article block, can set up the closed ring product of not closing on article block and press tightly, the rotary block rotates around the synchronization, and simultaneously, the closed ring product of not closing is pressed into the closed ring product, the utility model discloses simple structure, and the working stability is good.

Description

Technical Field

[0001] This utility model belongs to the technical field of molding molds, specifically relating to a mold for forming rings that facilitates the cooperation of paired rotating blocks with a flared notch. When the relative distance between the upper and lower molds decreases, the pressure rod cooperates with the placement block to press the unclosed closed ring product fitted on the placement block. The rotating blocks rotate around their respective corresponding arc-shaped grooves, simultaneously pressing the unclosed closed ring product into a closed ring product. This mold has a simple structure and good working stability. Background Technology

[0002] Forming dies are special process equipment used in cold stamping to process metal or non-metal materials into parts or semi-finished products. They are called cold closed-ring forming dies or cold stamping dies. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts. For common closed-ring products, if the volume is small, it can be formed directly in one step. If the volume is large, it is difficult to form in one step, so it can only be formed in steps. First, it is bent into unclosed semi-finished products, and then it is closed into closed-ring products.

[0003] To address this, we have developed a mold that facilitates the pairing of rotating blocks with a flared notch. When the relative distance between the upper and lower molds decreases, the pressure rod engages with the placement block to press the unclosed closed ring product fitted onto the placement block. The rotating blocks rotate around their respective corresponding arc-shaped grooves, simultaneously pressing the unclosed closed ring product into a closed ring product. This mold features a simple structure and good operational stability. Summary of the Invention

[0004] The purpose of this utility model is to provide a mold for forming closed rings with a pair of rotating blocks that fit into a flared notch. When the relative distance between the upper and lower molds decreases, the pressure rod fits into the placement block and can press the unclosed closed ring product fitted on the placement block. The rotating blocks rotate around their respective corresponding arc-shaped grooves, and at the same time, press the unclosed closed ring product into a closed ring product. The mold has a simple structure and good working stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a closed-loop forming mold, comprising an upper mold and a lower mold; the lower part of the upper mold is provided with a flared notch; the middle part of the upper mold is provided with an upper through hole; the upper through hole communicates with the flared notch; a pressure rod is provided inside the upper through hole; the lower mold includes a lower mold base; rotating blocks are symmetrically arranged on the lower mold base; the rotating blocks are inserted into the flared notch, and a lower support rod is provided at the symmetrical center of the rotating blocks; a placement block is horizontally arranged at the top of the lower support rod; the placement block is used to fit an unclosed closed-loop product; when the relative distance between the upper mold and the lower mold decreases, the pressure rod cooperates with the placement block to press the unclosed closed-loop product fitted on the placement block tightly, and the rotating block rotates synchronously, simultaneously pressing the unclosed closed-loop product into a closed-loop product.

[0006] Preferably, the flared notch is symmetrically distributed along the center of symmetry of the upper through hole.

[0007] Preferably, the lower mold base is provided with an arc-shaped groove; each rotating block has an arc-shaped rotating block at its bottom; the arc-shaped rotating blocks are correspondingly arranged with the arc-shaped grooves so that the rotating blocks can rotate around their respective arc-shaped grooves.

[0008] Preferably, the arc-shaped groove can be replaced by a spherical groove; at the same time, the arc-shaped rotating block can be replaced by a spherical rotating block.

[0009] Compared with the prior art, the present invention provides a closed-loop forming mold, which has the following beneficial effects: The closed-ring forming mold of this utility model facilitates the cooperation between paired rotating blocks and the flared notch. When the relative distance between the upper and lower molds decreases, the pressure rod cooperates with the placement block to press the unclosed closed-ring product fitted on the placement block. The rotating blocks rotate around their respective corresponding arc-shaped grooves, simultaneously pressing the unclosed closed-ring product into a closed-ring product. Then, the upper and lower molds are separated, and the closed-ring product is removed. This utility model has a simple structure and good working stability. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of a closed-loop forming mold in the mold parting state according to the present invention; Figure 2 This is a schematic diagram of the closed-loop forming mold proposed in this utility model in the mold-closed state. In the diagram: 1. Upper mold; 2. Trumpet-shaped notch; 3. Upper through hole; 4. Pressure rod; 5. Rotating block; 6. Lower mold base; 7. Lower support rod; 8. Closed ring product; 51. Arc-shaped rotating block; 52. Arc-shaped groove. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a closed ring forming mold, including an upper mold 1 and a lower mold (not shown); the lower part of the upper mold 1 is provided with a flared notch 2; the middle part of the upper mold 1 is provided with an upper through hole 3; the upper through hole 3 communicates with the flared notch 2; the flared notch 2 is symmetrically distributed along the center of symmetry of the upper through hole 3; a pressure rod 4 is provided in the upper through hole 3; the lower mold includes a lower mold base 6; rotating blocks 5 are symmetrically arranged on the lower mold base 6; the rotating blocks 5 are inserted into the... In the flared notch 2, a lower support rod 7 is provided at the symmetrical center of the rotating block 5; a placement block (not shown) is horizontally provided at the top of the lower support rod 7; the placement block is used to fit the unclosed closed ring product 8; when the relative distance between the upper mold 1 and the lower mold decreases, the pressure rod 4 cooperates with the placement block to press the unclosed closed ring product 8 fitted on the placement block tightly, and the rotating block 5 rotates around its corresponding arc-shaped groove 52, while pressing the unclosed closed ring product 8 into a closed ring product 8.

[0013] In this embodiment, the lower mold base 6 is provided with an arc-shaped groove 52; each rotating block 5 is provided with an arc-shaped rotating block 51 at its bottom; the arc-shaped rotating blocks 51 are correspondingly arranged with the arc-shaped grooves 52 so that the rotating blocks 5 can rotate around their respective corresponding arc-shaped grooves 52.

[0014] In this embodiment, the arc-shaped groove 52 can be replaced by a spherical groove; at the same time, the arc-shaped rotating block 51 can be replaced by a spherical rotating block.

[0015] The working principle and usage process of this utility model are as follows: First, the unclosed closed ring product 8 is placed on the placement block; then, the upper mold 1 and the lower mold are closed. When the relative distance between the upper mold 1 and the lower mold decreases, the pressure rod 4 cooperates with the placement block to press the unclosed closed ring product 8 placed on the placement block tightly. The rotating block 5 rotates around its corresponding arc-shaped groove 52, and at the same time, it presses the unclosed closed ring product 8 into a closed ring product 8. Then, the upper mold 1 and the lower mold are separated, and the closed ring product 8 is taken out. This process is repeated to achieve continuous operation.

[0016] Compared with the prior art, the present invention provides a closed-loop forming mold, which has the following beneficial effects: The closed ring forming mold of this utility model facilitates the cooperation between the paired rotating blocks 5 and the flared notch 2. When the relative distance between the upper mold 1 and the lower mold decreases, the pressure rod 4 cooperates with the placement block to press the unclosed closed ring product 8 sleeved on the placement block. The rotating blocks 5 rotate around their respective corresponding arc-shaped grooves 52, and at the same time, press the unclosed closed ring product 8 into a closed ring product 8. Then, the upper mold 1 and the lower mold are separated, and the closed ring product 8 is taken out. This utility model has a simple structure and good working stability.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed-loop forming mold, comprising an upper mold and a lower mold; characterized in that: The upper mold has a flared notch at its lower part; a through hole in the middle of the upper mold; the through hole communicates with the flared notch; a pressure rod is installed inside the through hole; the lower mold includes a lower mold base; rotating blocks are symmetrically arranged on the lower mold base; the rotating blocks are inserted into the flared notch, and a lower support rod is located at the center of symmetry of the rotating blocks; a placement block is horizontally arranged at the top of the lower support rod; the placement block is used to fit an unclosed closed ring product; when the relative distance between the upper and lower molds decreases, the pressure rod cooperates with the placement block to press the unclosed closed ring product fitted on the placement block tightly, and the rotating block rotates synchronously, simultaneously pressing the unclosed closed ring product into a closed ring product.

2. The closed-loop forming mold according to claim 1, characterized in that: The flared notch is symmetrically distributed along the center of symmetry of the upper through hole.

3. The closed-loop forming mold according to claim 2, characterized in that: The lower mold base is provided with an arc-shaped groove; each rotating block has an arc-shaped rotating block at its bottom; the arc-shaped rotating blocks are arranged corresponding to the arc-shaped grooves so that the rotating blocks can rotate around their respective arc-shaped grooves.

4. The closed-loop forming mold according to claim 3, characterized in that: The arc-shaped groove can be replaced by a spherical groove; at the same time, the arc-shaped rotating block can be replaced by a spherical rotating block.

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