One-piece die

Abstract

The utility model discloses a once forming punch hole mould for the processing forming of vacuum cup, including pad iron, upper die pad, lower mould body, movable block, mould core, beat material screw rod, beat material pa, punch needle, jacks and float sinking pin, the bottom of upper die plate and the top fixed connection of upper die pad, the bottom of upper die pad and the top fixed connection of upper mould body, the top of lower die plate and the bottom fixed connection of lower mould body, install movable block in lower mould body, the mould core is installed in the inside of lower mould body, be equipped with punch hole mould cavity on the mould core, punch needle is installed in upper mould body, punch needle sets up to punch hole mould cavity of mould core, the jacks are installed in lower die plate and set up correspondingly below the mould core, the float sinking pin is installed in lower mould body and the top end protrudes the upper surface of lower mould body, the utility model discloses has optimized the vacuum cup outer tube bottom processing technology, and the technical effect of simplifying procedure, improving production efficiency, reducing cost and improving product quality has been improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold design and machining technology, and in particular relates to a one-time forming punching mold for the production of thermos cups. Background Technology

[0002] Traditional thermos cup outer tube bottom processing involves first machining slabs of steel into round sheets, then applying oil, punching, and vacuum-filling. During the punching process, the bottom edge height of the outer tube is inconsistent, leading to poor product consistency and a high defect rate during subsequent welding processes, increasing scrap and rework costs. Furthermore, the multiple processes result in high labor costs, numerous handling operations, and limited production efficiency. Therefore, there is an urgent need to simplify the processing steps and resolve the issue of inconsistent edge height to improve production efficiency and product quality. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a one-time forming punching and cavitation mold, which has the advantages of optimizing the processing technology of the outer tube bottom of the thermos cup, simplifying the process, improving production efficiency, reducing costs and improving product quality. It solves the problems of low production efficiency, unstable product size and low pass rate, high production cost and high operation complexity caused by cumbersome processes in the prior art.

[0004] This utility model is implemented as follows: a one-time forming punching die includes a lower template and an upper template, and also includes a pad, an upper die pad block, an upper die body, a pressure plate, a lower die body, a movable block, a die core, an ejector screw, an ejector pin, a punch, an ejector pin, and a sinker pin. The bottom of the upper template is fixedly connected to the top of the upper die pad block, the bottom of the upper die pad block is fixedly connected to the top of the upper die body, and the top of the lower template is fixedly connected to the bottom of the lower die body. A movable block is installed inside the lower die body, and the die core is installed inside the lower die body, with a punching cavity on the die core. The ejector screw passes through the upper template, and the bottom of the ejector screw is connected to the ejector pin. The punch is installed on the upper die body, and the punch is set corresponding to the punching cavity of the die core. The ejector pin is installed on the lower template and is set below the die core. The sinker pin is installed on the lower die body, and its top end extends out of the upper surface of the lower die body.

[0005] This design enables precise assembly and coordinated operation of all mold components, ensuring the stability and motion accuracy of the upper mold during the stamping process. The corresponding setting of the punching cavity ensures the accuracy of the punching and vacuum cavity punching actions, providing a reliable mold structure foundation for the one-time forming punching and cavity punching production of the outer tube bottom. The original process of "slitting steel into round sheet material → applying oil → punching → punching vacuum cavity" is simplified into a two-step process of "slitting steel into punching vacuum cavity integrated → pressing and cutting". The core improvement is to combine the processes of "slitting steel into round sheet material, applying oil and punching" with "punching vacuum cavity", reducing material turnover and manual intervention, shortening the production cycle, reducing personnel requirements, and achieving dimensional stability and efficiency improvement.

[0006] In a preferred embodiment of this invention, the pressure plate is installed below the upper mold body and moves synchronously with the upper mold body. The pressure plate is used to contact and press the strip steel before punching the die.

[0007] With this setting, the pressure plate can contact the slit steel in advance and press it firmly before the punch performs the punching and cavitation operation. This effectively prevents the slit steel from shifting or deforming during the punching process, ensuring the positional accuracy of the slit steel in the mold. This makes the punching position of the punch more accurate, thereby improving the forming quality and consistency of the outer tube bottom product and reducing the generation of defective products caused by material displacement.

[0008] As a preferred embodiment of this invention, the lower mold body is provided with a guide groove for the sliding of the movable block.

[0009] This design provides precise trajectory constraints for the movement of the movable block, ensuring that the movable block can slide smoothly along the preset direction during mold operation. This not only guarantees the coordination accuracy between the movable block and other components, but also reduces friction and wear during the movement of the movable block, extending its service life. It also improves the overall working stability and reliability of the mold, helping to maintain smooth continuous production.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: First, by integrating the scattered punching and vacuum cavity punching processes in traditional processes into a single mold, the process flow and equipment mold change time are reduced, significantly improving production efficiency. Second, through the precise coordination of various components, the dimensional accuracy and consistency of the outer tube bottom product are greatly improved, increasing the product qualification rate from about 70% in traditional processes to 100%. Third, the reasonable mold structure design reduces reliance on operator skills, making it easier for new employees to learn and reducing labor costs and training difficulty. In addition, the integrated process reduces the manufacturing cost of a set of punching molds and the equipment energy consumption of the punching process, further reducing production costs and possessing significant economic value and practical significance. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0012] Figure 2 This is a cross-sectional structural schematic diagram provided in an embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of the cavity structure provided in an embodiment of the present invention.

[0014] In the diagram: 1. Pad; 2. Lower mold plate; 3. Upper mold plate; 4. Upper mold pad; 5. Upper mold body; 6. Pressure plate; 7. Lower mold body; 8. Movable block; 9. Mold core; 10. Ejector screw; 11. Ejector pin; 12. Punch; 13. Ejector pin; 14. Float pin; 15. Cavity. Detailed Implementation

[0015] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0016] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0017] refer to Figures 1 to 3 As shown in the figure, the one-time forming punching die provided in this embodiment of the utility model includes a lower template 2 and an upper template 3, and also includes a pad 1, an upper die pad 4, an upper die body 5, a pressure plate 6, a lower die body 7, a movable block 8, a die core 9, an ejector screw 10, an ejector pin 11, a punch 12, an ejector rod 13, and a sinker pin 14. The bottom of the upper template 3 is fixedly connected to the top of the upper die pad 4, the bottom of the upper die pad 4 is fixedly connected to the top of the upper die body 5, and the top of the lower template 2 is fixedly connected to the bottom of the lower die body 7. The lower mold body 7 is equipped with a movable block 8. The mold core 9 is installed inside the lower mold body 7 and has a punch cavity 15. The ejector screw 10 passes through the upper mold plate 3 and the bottom of the ejector screw 10 is connected to the ejector pin 11. The punch 12 is installed on the upper mold body 5 and is set to correspond to the punch cavity 15 of the mold core 9. The ejector rod 13 is installed on the lower mold plate 2 and is set below the mold core 9. The sinker pin 14 is installed on the lower mold body 7 and its top end extends out of the upper surface of the lower mold body 7.

[0018] By adopting the above scheme, the precise assembly and coordinated operation of each component of the mold are achieved, ensuring the stability and motion accuracy of the upper mold part during the stamping process. The corresponding setting of the punching cavity 15 ensures the accuracy of the punching and vacuum cavity punching actions, providing a reliable mold structure foundation for the one-time forming and cutting production of the outer tube bottom. The original process of "cutting round steel sheet → applying oil → punching → punching vacuum cavity" is simplified into a two-step process of "integrated punching and vacuum cavity punching of slab steel → pressing and cutting". The core improvement is to combine the processes of "cutting round steel sheet, applying oil and punching" with "punching vacuum cavity", reducing material turnover and manual intervention, shortening the production cycle, reducing personnel requirements, and achieving dimensional stability and efficiency improvement.

[0019] Specifically, the pressure plate 6 is installed below the upper mold body 5 and moves synchronously with the upper mold body 5. The pressure plate 6 is used to contact and press the slab steel before punching the die.

[0020] By adopting the above scheme, before the punch 12 performs the punching and cavitation operation, the pressure plate 6 can contact the slit steel in advance and press it firmly, effectively preventing the slit steel from shifting or deforming during the punching process, ensuring the positional accuracy of the slit steel in the mold, making the punching position of the punch 12 more accurate, thereby improving the forming quality and consistency of the outer tube bottom product and reducing the generation of defective products caused by material displacement.

[0021] Specifically, the lower mold body 7 has a guide groove inside for the movable block 8 to slide.

[0022] By adopting the above scheme, the guide groove provides precise trajectory constraints for the movement of the movable block 8, ensuring that the movable block 8 can slide smoothly along the preset direction during the mold operation. This not only ensures the coordination accuracy of the movable block 8 with other components, but also reduces friction and wear during the movement of the movable block 8, extends the service life of the movable block 8, and improves the overall working stability and reliability of the mold, which helps to maintain the smooth operation of continuous production.

[0023] The working principle of this utility model:

[0024] In use, the strip steel is first fixed to the feeder, and the tension of the material head roller is adjusted to a suitable level. At this time, the mold opens, and the top of the floating pin 14 of the lower mold extends out to reserve the support and positioning space. The feeder sends the material head to the stamping area, and the operator starts the stamping. When the upper mold moves down, the pressure plate 6 first presses the strip steel, and then the punch 12 aligns with the punch cavity 15 of the mold core 9 to simultaneously complete the punching and vacuuming. After stamping, the upper mold moves up, and the ejector screw 10 pushes the ejector pad 11 to detach from the semi-finished product stuck to the punch 12. The ejector rod 13, together with the restoring force of the floating pin 14, pushes the semi-finished product out of the lower mold. After the first piece is qualified, the automatic mode is turned on. After starting with both hands, the feeder automatically feeds according to the step distance. The mold cycle work process, and all components work together to continuously produce qualified semi-finished products. This optimizes the processing technology of the bottom of the thermos cup, simplifies the process, improves production efficiency, reduces costs, and improves product quality.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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 one-piece forming die for punching holes, comprising a lower die plate (2) and an upper die plate (3), characterized in that: It also includes a shim (1), an upper mold pad (4), an upper mold body (5), a pressure plate (6), a lower mold body (7), a movable block (8), a mold core (9), an ejector screw (10), an ejector pin (11), and a punch (12). The bottom of the upper mold plate (3) is fixedly connected to the top of the upper mold pad (4), the bottom of the upper mold pad (4) is fixedly connected to the top of the upper mold body (5), and the top of the lower mold plate (2) is fixedly connected to the bottom of the lower mold body (7). The lower mold body (7) is fixedly connected to the upper mold plate (3). The mold core (9) is installed inside the lower mold body (7) and has a punch cavity (15) on it. The ejector screw (10) passes through the upper mold plate (3) and the bottom of the ejector screw (10) is connected to the ejector pad (11). The punch (12) is installed on the upper mold body (5) and is set to correspond to the punch cavity (15) of the mold core (9).

2. The one-piece forming punching die as described in claim 1, characterized in that: It also includes a push rod (13), which is installed on the lower template (2) and is located below the mold core (9).

3. The one-piece forming punching die as described in claim 1, characterized in that: It also includes a sinker pin (14), which is installed on the lower mold body (7) and its top extends out of the upper surface of the lower mold body (7).

4. The one-piece forming punching die as described in claim 1, characterized in that: The pressure plate (6) is installed below the upper mold body (5) and moves synchronously with the upper mold body (5). The pressure plate (6) is used to contact and press the strip steel before punching the die.

5. The one-piece forming punching die as described in claim 1, characterized in that: The lower mold body (7) has a guide groove inside for the sliding of the movable block (8).

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