A down curling die

Abstract

The utility model discloses a lower roll round mould, including upper die and lower die seat, be provided with lower connecting plate on the lower die seat, be provided with lower forming block and lower floating block on the lower connecting plate, the ejection rod is vertically provided on the lower die seat, the upper portion of ejection rod is connected with lower floating block, the lower portion of ejection rod is equipped with reset spring, reset spring is used for ejecting ejection rod to make lower floating block extend the upper surface of lower connecting plate, the top of lower forming block is provided with forming groove, the forming groove can round the unformed product into the formed product with upper die cooperation, the utility model discloses utilize the forming groove of forming block and cooperate with upper die and round the unformed product into the formed product from lower part, when the die closes simultaneously, lower floating block can guide unformed product to enter the forming position, when the die opens, the top of lower floating block protrudes the upper surface of lower connecting plate to eject the formed product, the utility model discloses high production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of molding molds, specifically relating to a lower rolling mold that uses the forming groove of a forming block to cooperate with an upper mold to roll an unformed product into a formed product from the bottom. It also includes a lower floating block, which guides the unformed product into the forming position during mold closing; during mold opening, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product. This utility model features a simple structure, stable operation, high reliability, and high production efficiency. Background Technology

[0002] In existing technologies, situations often require rolling into a circle, which is usually achieved using forming molds. However, existing forming molds have complex structures, low forming efficiency, and cannot meet production needs.

[0003] To address this, we have developed a bottom rolling mold that utilizes the forming groove of a forming block in conjunction with an upper mold to roll an unformed product into a formed product from the bottom. It also includes a lower floating block that guides the unformed product into the forming position during mold closing. During mold opening, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product. This invention features a simple structure, stable operation, high reliability, and high production efficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide a bottom rolling mold that uses the forming groove of the forming block to cooperate with the upper mold to roll an unformed product into a formed product from the bottom. It also has a lower floating block. When the mold is closed, the lower floating block can guide the unformed product into the forming position. When the mold is separated, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product. This utility model has a simple structure, stable operation, high reliability, and high production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lower rolling die, comprising an upper die and a lower die base; a lower connecting plate is provided on the lower die base; a lower forming block and a lower floating block are provided on the lower connecting plate; an ejector rod is vertically provided on the lower die base; the upper part of the ejector rod is connected to the lower floating block; a return spring is sleeved on the lower part of the ejector rod; the return spring is used to eject the ejector rod, thereby causing the lower floating block to extend out of the upper surface of the lower connecting plate; a forming groove is provided on the top of the lower forming block; the forming groove cooperates with the upper die to roll an unformed product into a formed product.

[0006] Preferably, the lower floating block is positioned close to the lower forming block.

[0007] Preferably, the upper mold is provided with an upper through hole; the top of the forming block is provided with a protrusion; the protrusion can be inserted into the upper through hole.

[0008] Preferably, the top of the protrusion is provided with a guide notch to facilitate insertion of the protrusion into the upper through hole.

[0009] Preferably, the lower floating block has two working positions. In the first position, the top of the lower floating block is flush with the upper surface of the lower connecting plate. In the second working position, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product.

[0010] Preferably, the angle between the guide notch 43 and the vertical direction is 30° or 45°.

[0011] Compared with the prior art, the present invention provides a lower rolling die, which has the following beneficial effects: The lower rolling die of this utility model utilizes the forming groove of the forming block to cooperate with the upper die to roll the unformed product into a formed product from the bottom. It also has a lower floating block. When the die is closed, the lower floating block can guide the unformed product into the forming position. When the die is separated, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product. This utility model has a simple structure, stable operation, high reliability, and high production efficiency. Attached Figure Description

[0012] 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 lower rolling die in its first state according to the present invention; Figure 2 This is a schematic diagram of the structure of a lower rolling die in the second state according to the present invention; Figure 3 for Figure 2 A magnified view of the local structure; In the diagram: 1. Upper mold; 2. Lower connecting plate; 3. Lower mold base; 4. Lower forming block; 5. Lower floating block; 6. Ejector rod; 7. Return spring; 8. Unformed product; 9. Formed product; 11. Upper through hole; 41. Forming groove; 42. Protrusion; 43. Guide notch. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a lower rolling die, including an upper die 1 and a lower die base 3; a lower connecting plate 2 is provided on the lower die base 3; a lower forming block 4 and a lower floating block 5 are provided on the lower connecting plate 2; an ejector rod 6 is vertically provided on the lower die base 3; the upper part of the ejector rod 6 is connected to the lower floating block 5; a return spring 7 is sleeved on the lower part of the ejector rod 6; the return spring 7 is used to eject the ejector rod 6, thereby causing the lower floating block 5 to extend out of the lower connecting plate 2. The upper surface of the upper mold 1; the lower floating block 5 is disposed close to the lower forming block 4; the upper mold 1 is provided with an upper through hole 11; the top of the forming block 4 is provided with a protrusion 42; the protrusion 42 can be inserted into the upper through hole 11; the top of the protrusion 42 is provided with a guide notch 43 to facilitate the insertion of the protrusion 42 into the upper through hole 11; the top of the lower forming block 4 is provided with a forming groove 41; the forming groove 41 cooperates with the upper mold 1 to roll the unformed product 8 into a formed product 9.

[0015] In this embodiment, the lower floating block 5 has two working positions. In the first position, the top of the lower floating block 5 is flush with the upper surface of the lower connecting plate 2. In the second working position, the top of the lower floating block 5 protrudes from the upper surface of the lower connecting plate 2 to push out the formed product 9.

[0016] In this embodiment, the angle between the guide notch 43 and the vertical direction is 30° or 45°.

[0017] The working principle and usage process of this utility model are as follows: First, the unformed product 8 is placed on the lower connecting plate 2 and pressed down along the guide notch 43 to insert it into the forming groove 41 and achieve positioning; at the same time, the lower floating block 5 is in the second position; the lower floating block 5 holds the unformed product 8. When the mold is closed, the upper mold 1 first presses the unformed product 8, and then applies pressure to the upper mold 1. The lower floating block 5 slowly moves down until it is level with the upper surface of the lower connecting plate 2. At this time, the forming groove 41 cooperates with the upper mold 1 to roll the unformed product 8 into a formed product 9; when the mold is separated, under the action of the return spring 7, the ejector rod 6 pushes the lower floating block 5 out until the top of the floating block 5 protrudes from the upper surface of the lower connecting plate 2 to eject the formed product 9; this process is repeated to continuously roll the unformed product 8 into a formed product 9, resulting in high production efficiency.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The lower rolling die of this utility model utilizes the forming groove 41 of the forming block 4 to cooperate with the upper die 1 to roll the unformed product 8 into a formed product 9 from the bottom. It also has a lower floating block 5. When the die is closed, the lower floating block 5 can guide the unformed product 8 into the forming position. When the die is separated, the top of the lower floating block 5 protrudes from the upper surface of the lower connecting plate 2 to eject the formed product 9. This utility model has a simple structure, stable operation, high reliability, and high production efficiency.

[0019] 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 bottom rolling die, characterized in that: The device includes an upper mold and a lower mold base; a lower connecting plate is provided on the lower mold base; a lower forming block and a lower floating block are provided on the lower connecting plate; an ejector rod is vertically provided on the lower mold base; the upper part of the ejector rod is connected to the lower floating block; a return spring is sleeved on the lower part of the ejector rod; the return spring is used to eject the ejector rod, thereby causing the lower floating block to extend out of the upper surface of the lower connecting plate; a forming groove is provided on the top of the lower forming block; the forming groove cooperates with the upper mold to roll the unformed product into a formed product.

2. The lower rolling die according to claim 1, characterized in that: The lower floating block is positioned close to the lower forming block.

3. The lower rolling die according to claim 1, characterized in that: The upper mold is provided with an upper through hole; the top of the forming block is provided with a protrusion; the protrusion can be inserted into the upper through hole.

4. The lower rolling die according to claim 3, characterized in that: The top of the protrusion is provided with a guide notch to facilitate insertion of the protrusion into the upper through hole.

5. The lower rolling die according to claim 1, characterized in that: The lower floating block has two working positions. In the first position, the top of the lower floating block is flush with the upper surface of the lower connecting plate. In the second working position, the top of the lower floating block protrudes from the upper surface of the lower connecting plate to eject the formed product.

6. The lower rolling die according to claim 4, characterized in that: The angle between the guide notch and the vertical direction is 30° or 45°.

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