Nozzle punching mold structure

Abstract

The utility model discloses a nozzle punching die structure which comprises a concave die with a concave position, a convex die with a convex position, a material returning core and an upper bottom plate driven by an existing driving device to ascend and descend, and the concave die and the convex die are coaxially arranged. The edge of the convex position is provided with a convex nozzle structure, and the edge of the concave position is provided with an arc-shaped cavity; the male die is arranged on the upper bottom plate and is embedded into the concave position of the female die along with descending of the upper bottom plate, and the convex nozzle structure is close to the arc-shaped concave cavity; the convex die is lifted away from the concave position of the concave die along with the upper bottom plate; the convex nozzle structure is away from the arc-shaped concave cavity; the material returning core is located in the female die and can move up and down in the axial direction of the concave position. The mold structure has the functions of machining forming and nozzle making, and equipment is saved; a pair of limiting blocks and a pair of positioning guide columns are symmetrically arranged, so that the stress balance of the die is optimized, the die can be prevented from deviating, the nozzle punching quality is improved, stable lifting of the male die is facilitated, and the service life of the die is prolonged; and two water pouring nozzle positions can be punched at a time, so that the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing mold technology, and in particular to a nozzle die structure. Background Technology

[0002] To facilitate pouring water, commercially available cookware often incorporates a spout in its design, preventing spills. Generally, spouting is done using a spout mold or specialized machine. Using specialized machines is expensive and limits the product's structural design. Many spout-molding operations combine processing and spouting, requiring multiple machines, resulting in high equipment costs and complex procedures. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a nozzle-pressing mold structure that combines both molding and nozzle-pressing functions.

[0004] This utility model is achieved through the following technical solution: a nozzle-making die structure, including a concave die, a convex die, a ejector core, and an upper base plate driven to rise and fall by an existing driving device. The concave die and the convex die are coaxially arranged. The convex die has a nozzle structure on its edge, and the concave die has an arc-shaped cavity on its edge. The convex die is disposed on the upper base plate. The convex die is embedded in the concave die as the upper base plate descends, and the nozzle structure is close to the arc-shaped cavity. The convex die rises away from the concave die as the upper base plate rises, and the nozzle structure moves away from the arc-shaped cavity. The ejector core is located inside the concave die and can move up and down along the axial direction of the concave die.

[0005] The coaxial arrangement of the die and punch ensures that the product's axis is aligned with the axis of the punch, enabling precise positioning and ensuring uniform edges. The fit between the nozzle structure and the arc-shaped cavity ensures accurate nozzle application. This structure allows for the processing of sheet metal into cookware and the application of nozzles to the cookware, with a single device performing both functions. The axial movement of the ejector core lifts the nozzle-applied cookware, facilitating demolding.

[0006] The convex nozzle structure is provided in pairs, symmetrically arranged on the edges opposite to the convex positions. Similarly, the arc-shaped concave cavity is provided in pairs, symmetrically arranged on the edges opposite to the concave positions. The symmetrical arrangement of both the convex nozzle structure and the arc-shaped concave cavity allows for the simultaneous application of two water outlet positions.

[0007] It also includes a limiting block and a positioning guide post. The positioning guide post is installed on the die cavity, and the limiting block is installed on the lower side of the upper base plate. The limiting block has a positioning hole. When the limiting block descends with the upper base plate, the positioning guide post slides into the positioning hole, gradually inserting into the positioning hole until the lower side of the limiting block abuts against the die cavity. When the limiting block rises with the upper base plate and moves away from the die cavity, the positioning guide post gradually withdraws from the positioning hole. The sliding engagement mechanism of the positioning hole and the positioning guide post of the limiting block forms a positioning when the mold is closed, significantly improving the alignment accuracy of the punch and die, avoiding defects caused by misalignment; it also allows the punch to be positioned and moved, preventing the mold from deviating and affecting the nozzle quality.

[0008] A pair of limiting blocks are symmetrically arranged at both ends of the upper base plate; a pair of positioning guide pillars are symmetrically arranged at both ends of the die cavity. The symmetrical arrangement of the limiting blocks and positioning guide pillars optimizes the force balance of the die, prevents unilateral displacement, enhances structural rigidity, facilitates stable lifting and lowering of the punch, and extends the service life of the die.

[0009] The die cavity is symmetrically provided with limiting grooves at both ends. The limiting grooves are formed by a downward indentation on the top surface of the die cavity, and one end of the limiting groove near the center line of the die cavity is connected to the recess. The limiting grooves can restrict the movement range of the strip being formed, preventing it from detaching from the die cavity.

[0010] It also includes a lower base plate, and the die is fixed to the lower base plate by bolts; the lower base plate has a first through hole in the center that extends through its upper and lower sides, and the die has a second through hole in the center, the upper end of the second through hole communicating with the recess and the lower end of the second through hole communicating with the first through hole; the ejector core is located in the second through hole and can move up and down along the second through hole and the recess; the bottom of the ejector core is connected to a lifting rod that enables the ejector core to be raised and lowered, and the lifting rod is located in the first through hole.

[0011] The protrusions and concave parts are designed to match each other. The cooperation between the protrusions and concave parts ensures uniform material distribution during the sheet forming process, reduces flash, and lowers the cost of subsequent finishing processes.

[0012] The axis of the positioning guide post is aligned with the arc-shaped cavity, which can clearly indicate the placement direction of the part that needs to be punched, thus improving work efficiency.

[0013] The valve body sidewall is provided with a lever. The lever is provided to facilitate the operator to rotate the valve body.

[0014] Compared with the existing technology, the advantages of this utility model are as follows: This mold structure has both processing and forming functions and nozzle-making functions, saving equipment; the limit block and positioning guide post are symmetrically arranged in a pair, which optimizes the force balance of the mold, avoids mold deviation, improves nozzle-making quality, facilitates the stable lifting and lowering of the punch, and extends the service life of the mold; it can make two water nozzle positions at one time, improving work efficiency. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a longitudinal sectional view of an embodiment of the present invention;

[0017] Figure 3 This is an exploded view of the structure in the main view of an embodiment of this utility model;

[0018] Figure 4 This is a cross-sectional view of the pot during shaping and spout application according to an embodiment of the present invention;

[0019] Figure 5 This is a top view of the mold in an embodiment of the present invention;

[0020] Figure 6 This is a longitudinal section view of the mold in an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the mold structure in an embodiment of the present invention;

[0022] Figure 8 This is a front view of the mold in an embodiment of the present invention;

[0023] Figure 9 This is a longitudinal sectional view of the mold in an embodiment of the present invention;

[0024] Figure 10 This is a schematic diagram of the structure of the mold in an embodiment of the present invention;

[0025] Figure 11 This is a structural schematic diagram of the mold from another direction in an embodiment of this utility model.

[0026] The meanings of the labels in the attached figures are as follows: 1. Die; 11. Concave position; 12. Arc-shaped cavity; 13. Limiting groove; 14. Second through hole; 2. Punch; 21. Protruding position; 22. Protruding nozzle structure; 3. Ejector core; 4. Upper base plate; 5. Limiting block; 51. Positioning hole; 6. Positioning guide post; 7. Lower base plate; 71. First through hole; 8. Cookware. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Example

[0029] See Figures 1 to 11 The present invention is a nozzle die structure comprising a die 1 with a recess 11, a punch 2 with a protrusion 21, a ejector core 3, and an upper base plate 4 driven to rise and fall by an existing drive device. The die 1 and the punch 2 are coaxially arranged. The protrusion 21 has a protruding nozzle structure 22 on its edge, and the recess 11 has an arc-shaped cavity 12 on its edge. The punch 2 is disposed on the upper base plate 4. The punch 2 is embedded in the recess 11 of the die 1 as the upper base plate 4 falls, and the protruding nozzle structure 22 is close to the arc-shaped cavity 12. The punch 2 is raised away from the recess 11 of the die 1 as the upper base plate 4 rises, and the protruding nozzle structure 22 is moved away from the arc-shaped cavity 12. The ejector core 3 is located in the die 1 and can move up and down along the axial direction of the recess 11.

[0030] The coaxial arrangement of the concave mold 1 and the convex mold 2 ensures that the product's axis is located on the same axis as the convex mold 2, enabling precise positioning and ensuring uniform edges. The cooperation between the nozzle structure 22 and the arc-shaped cavity 12 ensures accurate nozzle application. This structure can process a sheet material into a cookware 8 and perform nozzle application on the cookware 8, achieving both functions with a single device. The axial movement of the ejector core 3 can lift the nozzle-applied cookware 8, achieving demolding.

[0031] A pair of convex nozzle structures 22 are symmetrically arranged on the edge opposite to the convex position 21, and a pair of arc-shaped concave cavities 12 are symmetrically arranged on the edge opposite to the concave position 11. The symmetrical arrangement of the convex nozzle structures 22 and the arc-shaped concave cavities 12 allows for the simultaneous application of two water outlet positions.

[0032] It also includes a limiting block 5 and a positioning guide post 6. The positioning guide post 6 is installed on the die cavity 1, and the limiting block 5 is installed on the lower side of the upper base plate 4. The limiting block 5 has a positioning hole 51. When the limiting block 5 descends with the upper base plate 4, the positioning guide post 6 forms a sliding fit with the positioning hole 51 and gradually inserts into the positioning hole 51 until the lower side of the limiting block 5 abuts against the die cavity 1. When the limiting block 5 rises with the upper base plate 4 and moves away from the die cavity 1, the positioning guide post 6 gradually withdraws from the positioning hole 51. The sliding fit mechanism between the positioning hole 51 of the limiting block 5 and the positioning guide post 6 forms a positioning when the mold is closed, which significantly improves the alignment accuracy of the punch and die 1 and avoids defective products caused by misalignment; it also allows the punch 2 to be positioned and moved, preventing the mold from deviating and affecting the nozzle quality.

[0033] A pair of limiting blocks 5 are symmetrically arranged at both ends of the upper base plate 4; a pair of positioning guide pillars 6 are symmetrically arranged at both ends of the die cavity 1. The symmetrical arrangement of the limiting blocks 5 and the positioning guide pillars 6 optimizes the force balance of the mold, prevents unilateral displacement, enhances structural rigidity, facilitates the stable lifting and lowering of the punch 2, and extends the service life of the mold.

[0034] The die cavity 1 is symmetrically provided with limiting grooves 13 at both ends. The limiting grooves 13 are formed by a downward indentation from the top surface of the die cavity 1, and one end of the limiting groove 13 near the center line of the die cavity 1 is connected to the recess 11. The setting of the limiting grooves 13 can restrict the range of movement of the strip to be formed and prevent it from detaching from the die cavity 1.

[0035] It also includes a lower base plate 7, and the die 1 is fixed to the lower base plate 7 by bolts; the lower base plate 7 has a first through hole 71 in the center that passes through its upper and lower sides, and the die 1 has a second through hole 14 in the center. The upper end of the second through hole 14 is connected to the recess 11, and the lower end of the second through hole 14 is connected to the first through hole 71; the ejector core 3 is located in the second through hole 14 and can move up and down along the second through hole 14 and the recess 11; the bottom of the ejector core 3 is connected to a lifting rod that enables the ejector core 3 to lift, and the lifting rod is located in the first through hole 71.

[0036] The protrusion 21 and the concave part 11 are matched in shape. The cooperation between the protrusion 21 and the concave part 11 can ensure that the material is evenly distributed during the forming process, reduce the generation of flash, and reduce the cost of subsequent finishing processes.

[0037] The axis of the positioning guide post 6 is aligned with the arc-shaped cavity 12, which can clearly indicate the placement direction of the part that needs to be punched, which helps to improve work efficiency.

[0038] The valve body sidewall is equipped with a lever. The lever is designed to facilitate the operator's rotation of the valve body.

[0039] In this embodiment, the sheet material is the sheet to be processed. The driving device that drives the upper base plate 4 to rise and fall is a mature existing technology and does not require detailed structural analysis. In this embodiment, the ejector core 3 is existing technology. The ejector core 3 is equipped with a lifting rod at its lower part. The lifting rod is driven by a motor or telescopic rod. The ejector core 3 may also be equipped with an air blowing channel, which is connected to an air tank. After the sheet material is made into a finished product (cookware 8), the finished product (cookware 8) can be blown up by air and separated from the ejector core 3. The lifting rod, telescopic rod, and air blowing channel are all existing equipment and do not require detailed structural analysis. The term "shaping" in the following text is an industry term that refers to stamping and forming (also called stretching) the sheet material. Through the joint action of the punch 2 and the die 1, the sheet material is made into a pot body. In this embodiment, the punch 2, the upper base plate 4, and the limiting block 5 together constitute the upper mold; the die 1, the lower base plate 7, and the positioning guide post 6 together constitute the lower mold.

[0040] After installing all components, the following workflow is performed in this embodiment:

[0041] 1) The operator places the pre-stretched sheet above the recess 11 of the die 1, with one pair of opposite sides of the sheet located in the limiting groove 13, and the side of the sheet facing the groove wall of the limiting groove 13.

[0042] 2) When the operator removes his / her hand from the material sheet, he / she presses the start button of the drive equipment. The upper base plate 4 drives the punch 2 to descend, shaping and nozzle-making the material sheet. The protrusion 21 of the punch 2 squeezes the material sheet down along the concave part 11 of the groove to form a pot body. The protruding nozzle structure 22 on the edge of the protrusion 21 squeezes the edge of the pot body and pot mouth to achieve the nozzle-making function.

[0043] 3) Use the ejector core 3 to lift the finished product (cookware 8) and separate it from the die 1, thus completing the working process of this mold.

[0044] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A nozzle die structure, characterized in that: The device includes a concave die, a convex die, a ejector core, and an upper base plate that is driven to rise and fall by an existing drive device. The concave die and the convex die are coaxially arranged. The convex die has a protruding nozzle structure on its edge, and the concave die has an arc-shaped cavity on its edge. The convex die is disposed on the upper base plate and is embedded in the concave die as the upper base plate descends. The protruding nozzle structure is close to the arc-shaped cavity. The punch rises with the upper base plate away from the recess of the die, and the protruding nozzle structure moves away from the arc-shaped cavity; the ejector core is located inside the die and can move up and down along the axial direction of the recess.

2. The nozzle die structure according to claim 1, characterized in that: The convex nozzle structure is provided in a pair, symmetrically arranged on the edge opposite to the convex position, and the arc-shaped concave cavity is provided in a pair, symmetrically arranged on the edge opposite to the concave position.

3. The nozzle die structure according to claim 1, characterized in that: It also includes a limiting block and a positioning guide post. The positioning guide post is installed on the cavity mold, and the limiting block is installed on the lower side of the upper base plate. The limiting block has a positioning hole. When the limiting block descends with the upper base plate, the positioning guide post forms a sliding fit with the positioning hole and gradually inserts into the positioning hole as the upper base plate descends until the lower side of the limiting block abuts against the cavity mold. When the limiting block rises with the upper base plate and moves away from the cavity mold, the positioning guide post gradually withdraws from the positioning hole.

4. The nozzle die structure according to claim 3, characterized in that: The limiting blocks are provided in pairs and are symmetrically arranged at both ends of the upper base plate; the positioning guide posts are provided in pairs and are symmetrically arranged at both ends of the die cavity.

5. The nozzle die structure according to claim 3, characterized in that: The die has symmetrical limiting grooves at both ends. The limiting grooves are formed by the downward recess of the top surface of the die. The end of the limiting groove near the center line of the die is connected to the recess.

6. The nozzle die structure according to claim 1, characterized in that: It also includes a lower base plate, and the die is fixed to the lower base plate by bolts; the lower base plate has a first through hole in the center that extends through its upper and lower sides, and the die has a second through hole in the center, the upper end of the second through hole communicating with the recess and the lower end of the second through hole communicating with the first through hole; the ejector core is located in the second through hole and can move up and down along the second through hole and the recess; the bottom of the ejector core is connected to a lifting rod that enables the ejector core to be raised and lowered, and the lifting rod is located in the first through hole.

7. The nozzle die structure according to claim 1, characterized in that: The protrusion and the concave shape are matched.

8. The nozzle die structure according to claim 3, characterized in that: The axis of the positioning guide post is aligned with the arc-shaped cavity.

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