Die capable of adjusting size of inner cavity

Abstract

The utility model relates to the technical field of dies, and discloses a die capable of adjusting the size of an inner cavity, which comprises a base, a coaming assembly, a bottom plate assembly, an inner cavity adjusting assembly and a bottom plate adjusting assembly, the base is of a hollow structure, the bottom plate assembly is arranged at the top of the base, and the surrounding plate assembly is arranged above the bottom plate assembly; the inner cavity adjusting assembly is arranged outside the coaming assembly; the bottom plate adjusting assembly is arranged in the base. According to the utility model, the size of the inner cavity of the die is enlarged or reduced at equal ratio through the joint matching of the coaming I, the coaming II and the frame-shaped bottom plate, and the flatness of the inner cavity of the die is always kept, so that the shape of the inner cavity is prevented from being changed when the size of the inner cavity of the die is changed, and workpieces are kept to be formed in the same shape; therefore, a single die can be used for machining a plurality of workpieces with the same shape and different sizes, and the beneficial effects of reducing the machining cost and the complexity of the machining process are achieved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold with adjustable internal cavity size. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. Molds have specific contours or internal cavity shapes and are used to shape and process workpieces of different shapes and specifications. Molds should have a certain degree of sealing to prevent leakage of molten raw materials during injection molding.

[0003] Most existing molds have fixed inner cavity sizes. When processing workpieces of the same shape but different sizes, multiple molds with different inner cavity sizes need to be prepared, which increases processing costs. Furthermore, molds need to be changed frequently according to different processing requirements, which increases the complexity of the processing flow. Utility Model Content

[0004] The present invention aims to solve the technical problems mentioned in the background section by providing a mold with adjustable internal cavity dimensions.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A mold with an adjustable inner cavity size includes a base, a surrounding plate assembly, a bottom plate assembly, an inner cavity adjustment assembly, and a bottom plate adjustment assembly;

[0007] The base is a hollow structure, the base plate assembly is located on the top of the base, and the surrounding plate assembly is located above the base plate assembly;

[0008] The cavity adjustment assembly is disposed outside the enclosure assembly;

[0009] The base plate adjustment assembly is located inside the base.

[0010] Preferably, the enclosure assembly includes enclosure one, guide post, enclosure two, telescopic plate, and spring one;

[0011] The first enclosure is located above the base plate assembly. There are two enclosures, and cavities are opened on the adjacent surfaces of the two enclosures. The telescopic plate is movably connected inside the cavity.

[0012] The guide post is fixedly connected between two adjacent and mutually perpendicular enclosure plates.

[0013] The second enclosure is located inside the telescopic plate, and the first spring is fixedly connected between the second enclosure and the telescopic plate.

[0014] Preferably, the base plate assembly includes a fixed base plate, a frame-shaped base plate, and a second spring;

[0015] The fixed base plate is fixedly connected to the middle of the base;

[0016] The frame-shaped base plate is located on the outside of the fixed base plate, and the second spring is fixedly connected between the frame-shaped base plate and the base.

[0017] Preferably, the inner cavity adjustment assembly includes a double-ended lead screw one, a double-ended lead screw two, and a telescopic sleeve rod;

[0018] The first double-ended lead screw and the second double-ended lead screw are perpendicular to each other, and the nut part of the second double-ended lead screw is fixedly connected to the two guide posts respectively;

[0019] The fixed end of the telescopic sleeve is fixedly connected to the base via a bracket, the movable end of the telescopic sleeve is fixedly connected to the outer wall of the enclosure, and the nut portion of the double-ended screw is movably connected to the outer wall of the movable end of the telescopic sleeve.

[0020] Preferably, the base plate adjustment assembly includes a rotating rod, an elliptical rotating block, a slot, and a limiting strip;

[0021] The rotating rod is rotatably connected inside the base, the rotating rod passes through the eccentric part of the elliptical rotating block and is movably connected thereto, and the elliptical rotating block overlaps with the bottom of the frame-shaped base plate;

[0022] The slot is formed on the inner wall of the through hole connecting the elliptical rotating block and the rotating rod. The limiting strip is fixedly connected to the outer wall of the rotating rod, and the limiting strip is engaged with the slot.

[0023] The beneficial effects of this utility model are:

[0024] This invention uses the combined action of a first enclosure plate, a second enclosure plate, and a frame-shaped base plate to proportionally enlarge or reduce the size of the mold cavity while maintaining its flatness. This prevents changes in the shape of the cavity when the size is altered, thus ensuring that the workpiece is formed in the same shape. As a result, a single mold can be used to process multiple workpieces of the same shape but different sizes, achieving the beneficial effects of reducing processing costs and simplifying the processing flow. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the mold with adjustable internal cavity size;

[0026] Figure 2 This is a cross-sectional view of the enclosure of a mold with adjustable internal cavity dimensions;

[0027] Figure 3 This is a cross-sectional view of the base structure of the mold with adjustable internal cavity size;

[0028] Figure 4 This is a schematic diagram of the rotating rod structure of a mold with adjustable internal cavity dimensions.

[0029] Explanation of reference numerals in the attached drawings: 1. Base; 2. Enclosure 1; 3. Enclosure 2; 4. Double-ended lead screw 1; 5. Double-ended lead screw 2; 6. Telescopic sleeve rod; 7. Guide column; 8. Telescopic plate; 9. Spring 1; 10. Fixed base plate; 11. Frame-shaped base plate; 12. Rotating rod; 13. Elliptical rotating block; 14. Spring 2; 15. Slot; 16. Limiting strip. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] This application designs a mold with adjustable internal cavity dimensions, as shown in the attached figure. Figure 1-4 As shown, it includes a base 1, a surrounding panel assembly, a bottom plate assembly, an inner cavity adjustment assembly, and a bottom plate adjustment assembly;

[0034] The base 1 is a hollow structure, the base plate assembly is set on the top of the base 1, and the surrounding plate assembly is set above the base plate assembly;

[0035] The internal cavity adjustment assembly is located outside the enclosure assembly;

[0036] The base plate adjustment assembly is located inside the base 1.

[0037] Furthermore, the enclosure assembly includes enclosure 1 2, guide post 7, enclosure 2 3, telescopic plate 8, and spring 1 9;

[0038] The enclosure panel 12 is located above the base plate assembly. There are two enclosure panels 12, and cavities are opened on the adjacent surfaces of the two enclosure panels 12. The telescopic plate 8 is movably connected inside the cavity.

[0039] The guide column 7 is fixedly connected between two adjacent and mutually perpendicular enclosure plates 2;

[0040] Enclosure 2 3 is set inside the telescopic plate 8, and spring 1 9 is fixedly connected between enclosure 2 3 and telescopic plate 8. Enclosure 2 3 can be telescopically moved by setting handles or electric telescopic rods or other structures.

[0041] Furthermore, the base plate assembly includes a fixed base plate 10, a frame-shaped base plate 11, and a second spring 14;

[0042] The base plate 10 is fixedly connected to the middle of the base 1;

[0043] The frame-shaped base plate 11 is set on the outside of the fixed base plate 10. The second spring 14 is fixedly connected between the frame-shaped base plate 11 and the base 1. The frame-shaped base plate 11 can be installed in different quantities according to different usage requirements. The base plate adjustment components are also set in corresponding quantities to achieve multi-level adjustment. In this embodiment, only single-level adjustment is taken as an example. The adjustment process of multiple frame-shaped base plates 11 will not be described here.

[0044] Furthermore, the inner cavity adjustment assembly includes a double-ended lead screw 4, a double-ended lead screw 2 5, and a telescopic sleeve 6;

[0045] The double-ended lead screw 4 and the double-ended lead screw 5 are perpendicular to each other. The nut part of the double-ended lead screw 5 is fixedly connected to the two guide posts 7 respectively. Both the double-ended lead screw 4 and the double-ended lead screw 5 are driven by a motor.

[0046] The fixed end of the telescopic sleeve rod 6 is fixedly connected to the base 1 via a bracket, the movable end of the telescopic sleeve rod 6 is fixedly connected to the outer wall of the enclosure 2, and the nut part of the double-ended screw rod 4 is movably connected to the outer wall of the movable end of the telescopic sleeve rod 6.

[0047] Furthermore, the base plate adjustment assembly includes a rotating rod 12, an elliptical rotating block 13, a slot 15, and a limiting strip 16;

[0048] The rotating rod 12 is rotatably connected inside the base 1. The rotating rod 12 passes through the eccentric part of the elliptical rotating block 13 and is movably connected to it. The elliptical rotating block 13 overlaps with the bottom of the frame-shaped base plate 11.

[0049] The slot 15 is formed in the inner wall of the through hole connecting the elliptical rotating block 13 and the rotating rod 12. The limiting strip 16 is fixedly connected to the outer wall of the rotating rod 12, and the limiting strip 16 is engaged with the slot 15.

[0050] Working principle: When it is necessary to increase the size of the mold cavity, firstly, the double-ended lead screw 5 is activated. The double-ended lead screw 5 stretches the two side plates 2 and exposes the side plate 3. The spring 9 pops out the side plate 3, so that the side plates 2 and 3 together form a flat surface. At the same time, the side plates 2 retract the telescopic sleeve 6. Then, the double-ended lead screw 4 drives the other side side plate 2 to stretch and pop out the other side side plate 3. At this time, the side plates 2 are all located outside the frame-shaped base plate 11. In addition, the side plates 2 drive the rotating rod 12 to move outward, so that the limiting strip 16 is inserted into the slot 15. Then, the rotating rod 12 drives the elliptical rotating block 13 to rotate. The elliptical rotating block 13 lifts the frame-shaped base plate 11, so that the frame-shaped base plate 11 and the fixed base plate 10 together form a flat plane, thereby making the mold form a flat inner cavity and preventing the inner cavity shape from changing due to changes in the size of the mold cavity.

[0051] When it is necessary to reduce the size of the mold cavity, firstly, the second partition plate 3 is retracted, then the elliptical rotating block 13 is reset, the second spring 14 resets the frame-shaped base plate 11, and then the partition plate 2 is contracted by the reverse operation, thereby reducing the size of the mold cavity proportionally.

[0052] The above embodiments are only some embodiments of this utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the protection scope of this utility model.

Claims

1. A mold with adjustable internal cavity size, characterized in that: Includes base (1), surrounding panel assembly, bottom plate assembly, inner cavity adjustment assembly, and bottom plate adjustment assembly; The base (1) is a hollow structure, the base plate assembly is set on the top of the base (1), and the surrounding plate assembly is set above the base plate assembly; The cavity adjustment assembly is disposed outside the enclosure assembly; The base plate adjustment assembly is located inside the base (1).

2. The mold with adjustable inner cavity size according to claim 1, characterized in that... The enclosure assembly includes enclosure one (2), guide post (7), enclosure two (3), telescopic plate (8), and spring one (9); The first enclosure (2) is located above the bottom plate assembly. There are two enclosures (2). The adjacent surfaces of the two enclosures (2) are provided with cavities. The telescopic plate (8) is movably connected inside the cavity. The guide post (7) is fixedly connected between two adjacent and mutually perpendicular enclosure plates (2); The second enclosure (3) is located inside the telescopic plate (8), and the first spring (9) is fixedly connected between the second enclosure (3) and the telescopic plate (8).

3. The mold with adjustable inner cavity size according to claim 2, characterized in that... The base plate assembly includes a fixed base plate (10), a frame-shaped base plate (11), and a second spring (14); The fixed base plate (10) is fixedly connected to the middle of the base (1); The frame-shaped base plate (11) is located on the outside of the fixed base plate (10), and the second spring (14) is fixedly connected between the frame-shaped base plate (11) and the base (1).

4. The mold with adjustable inner cavity size according to claim 3, characterized in that... The internal cavity adjustment assembly includes a double-ended lead screw (4), a double-ended lead screw (5), and a telescopic sleeve (6); The double-ended lead screw one (4) and the double-ended lead screw two (5) are perpendicular to each other, and the nut part of the double-ended lead screw two (5) is fixedly connected to the two guide posts (7) respectively; The fixed end of the telescopic sleeve (6) is fixedly connected to the base (1) through a bracket, the movable end of the telescopic sleeve (6) is fixedly connected to the outer wall of the enclosure (2), and the nut part of the double-headed screw (4) is movably connected to the outer wall of the movable end of the telescopic sleeve (6).

5. A mold with adjustable inner cavity size according to claim 4, characterized in that... The base plate adjustment assembly includes a rotating rod (12), an elliptical rotating block (13), a slot (15), and a limiting strip (16); The rotating rod (12) is rotatably connected inside the base (1). The rotating rod (12) passes through the eccentric part of the elliptical rotating block (13) and is movably connected thereto. The elliptical rotating block (13) overlaps with the bottom of the frame-shaped base plate (11). The slot (15) is formed on the inner wall of the through hole connecting the elliptical rotating block (13) and the rotating rod (12). The limiting strip (16) is fixedly connected to the outer wall of the rotating rod (12). The limiting strip (16) is engaged with the slot (15).

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