Adjustable mold ejector rod

Abstract

The utility model discloses an adjustable mold ejector rod which comprises a mold shell, a mold groove is formed in the mold shell, an open hole is formed in the mold shell in a penetrating mode, a plurality of first threaded holes are formed in the mold shell, and a main ejector rod is movably connected in the open hole in a penetrating mode. Symmetrical fixing threaded shafts are movably connected into the first threaded holes, auxiliary ejector rods are fixedly connected to the upper ends of the fixing threaded shafts, symmetrical fixing blocks are movably connected to the upper end of the mold shell, rotating grooves are fixedly connected to the lower ends of the fixing blocks, and third threaded holes are formed in the side faces of the fixing blocks. A tightening threaded shaft is movably connected into the third threaded hole in a penetrating mode, a square groove is formed in the fixing block, and a square shaft is movably connected into the square groove. Through the structure, different molds and workpieces are accurately adapted, diversified demolding requirements are met, shaking during demolding is prevented, and mounting, adjusting and fixing operation is simpler, more convenient and more efficient.

Description

Technical Field

[0001] This utility model relates to the field of mold ejector pin technology, and in particular to an adjustable mold ejector pin. Background Technology

[0002] In the field of mold manufacturing and forming, mold ejector pins are key components that eject the formed workpiece from the mold cavity, and their performance has a significant impact on production efficiency and product quality. Traditional mold ejector pins are mostly designed with fixed lengths or simple structures. For example, the ejector pin technology disclosed in CN216729104U, although it has optimized the ejector pin structure to some extent, still finds it difficult to break through the limitations of fixed length and simple structure, and cannot be flexibly adjusted according to different mold sizes, workpiece shapes and demolding requirements.

[0003] Ejector pins with fixed structures, such as CN216729104U, have significant shortcomings in controlling the uniformity of force during demolding. This makes it difficult to ensure balanced force distribution across all parts of the workpiece during ejection, easily leading to workpiece deformation, surface damage, and even demolding failure. As the mold manufacturing industry continues to demand higher product precision and production efficiency, the limitations of existing technologies are becoming increasingly apparent. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable mold ejector pin that can accurately adapt to different molds and workpieces, meet diverse demolding needs, prevent shaking during demolding, and make installation, adjustment and fixing operations simpler and more efficient.

[0005] To achieve the above objectives, an adjustable mold ejector is provided, comprising a mold housing, a mold groove on the mold housing, an opening through the mold housing, and a plurality of first threaded holes on the mold housing, wherein a main ejector is movably connected through the opening.

[0006] According to the adjustable mold ejector pin, a symmetrical fixed threaded shaft is movably connected in the first threaded hole, and a secondary ejector pin is fixedly connected to the upper end of the fixed threaded shaft.

[0007] According to the adjustable mold ejector rod, the upper end of the mold shell is movably connected to symmetrical fixed blocks, the lower end of the fixed blocks is fixedly connected to a rotating groove, the upper end of the auxiliary ejector rod is fixedly connected to a rotating block, and the rotating block is movably connected to the rotating groove.

[0008] According to the adjustable mold ejector pin, the side of the fixing block is provided with a third threaded hole, and a tightening threaded shaft is movably connected through the third threaded hole. The side of the tightening threaded shaft is provided with a cross groove.

[0009] According to the adjustable mold ejector pin, a square groove is provided on the fixed block, and a square shaft is movably connected in the square groove. One end of the tightening threaded shaft is movably connected to the square shaft.

[0010] According to the adjustable mold ejector pin, a fixed shaft is fixedly connected to the square shaft, and a bushing is fixedly connected through the fixed shaft, with a threaded groove inside the bushing.

[0011] According to the adjustable mold ejector pin, the upper end of the main ejector pin is fixedly connected to a first threaded shaft, the first threaded shaft is movably connected to a threaded groove, and the upper end of the first threaded shaft is fixedly connected to a turntable.

[0012] According to the adjustable mold ejector pin, the turntable has symmetrical second threaded holes, and a second threaded shaft is movably connected to the corresponding second threaded hole. A handle is fixedly connected to one end of the second threaded shaft.

[0013] Beneficial effects:

[0014] 1. The height of the main ejector rod can be adjusted by rotating the turntable through the connection between the main ejector rod and the first threaded shaft and the threaded groove of the bushing; the secondary ejector rod is connected to the mold shell through the fixed threaded shaft, and the angle can be adjusted by rotating the rotating groove on the fixed block. The combination of the two can accurately adapt to different molds and workpieces to meet diverse demolding needs.

[0015] 2. The tightening threaded shaft, square shaft and bushing on the fixed block work together to firmly lock the main ejector rod and prevent shaking during demolding; the second threaded shaft and handle facilitate quick disassembly and assembly of the turntable, and the threaded structure of the fixed threaded shaft and tightening threaded shaft also makes the installation, adjustment and fixing of the overall equipment simpler and more efficient.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of an adjustable mold ejector pin proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of the main ejector rod of an adjustable mold ejector rod proposed in this utility model;

[0020] Figure 3 The present utility model proposes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the auxiliary ejector rod of an adjustable mold ejector rod proposed in this utility model;

[0022] Figure 5 The present utility model proposes Figure 4 Enlarged view of point B in the middle.

[0023] Legend:

[0024] 1. Mold shell; 2. First threaded hole; 3. Main ejector rod; 4. First threaded shaft; 5. Secondary ejector rod; 6. Fixing block; 7. Turntable; 8. Handle; 9. Tightening threaded shaft; 10. Fixing shaft; 11. Square shaft; 12. Mold groove; 13. Opening; 14. Second threaded hole; 15. Second threaded shaft; 16. Threaded groove; 17. Bushing; 18. Fixing threaded shaft; 19. Rotating block; 20. Rotating groove; 21. Cross groove; 22. Square groove; 23. Third threaded hole. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-5 An adjustable mold ejector rod according to an embodiment of the present invention includes a mold shell 1, a mold groove 12 on the mold shell 1, an opening 13 through the mold shell 1, and a plurality of first threaded holes 2 on the mold shell 1. A main ejector rod 3 is movably connected through the opening 13 and can move up and down within the opening 13.

[0027] Specifically: A symmetrical fixed threaded shaft 18 is movably connected inside the first threaded hole 2. A secondary push rod 5 is fixedly connected to the upper end of the fixed threaded shaft 18. The height position of the secondary push rod 5 can be adjusted by rotating the fixed threaded shaft 18.

[0028] Specifically: the upper end of the mold shell 1 is movably connected to symmetrical fixing blocks 6, the lower end of the fixing blocks 6 is fixedly connected to a rotating groove 20, the upper end of the auxiliary ejector rod 5 is fixedly connected to a rotating block 19, and the rotating block 19 is movably connected to the rotating groove 20.

[0029] Specifically: The side of the fixing block 6 is provided with a third threaded hole 23, and a tightening threaded shaft 9 is movably connected through the third threaded hole 23. The side of the tightening threaded shaft 9 is provided with a cross groove 21, which facilitates operation with tools such as screwdrivers, thereby controlling the rotation of the tightening threaded shaft 9.

[0030] Specifically: A square groove 22 is provided on the fixed block 6, and a square shaft 11 is movably connected in the square groove 22. One end of the tightened threaded shaft 9 is movably connected to the square shaft 11, which can drive the square shaft 11 to move, thereby realizing the control of other components.

[0031] Specifically: A fixed shaft 10 is fixedly connected to the square shaft 11, and a bushing 17 is fixedly connected through the fixed shaft 10. A threaded groove 16 is provided inside the bushing 17, which provides the basis for the threaded fit for the connection and adjustment of subsequent components.

[0032] Specifically: The upper end of the main push rod 3 is fixedly connected to the first threaded shaft 4, the first threaded shaft 4 is movably connected to the threaded groove 16, and the upper end of the first threaded shaft 4 is fixedly connected to the turntable 7, which provides a force application point and facilitates the rotation of the first threaded shaft 4.

[0033] Specifically: The turntable 7 has symmetrical second threaded holes 14, and a corresponding second threaded shaft 15 is movably connected in the second threaded holes 14. One end of the second threaded shaft 15 is fixedly connected to a handle 8 to meet the needs of different operating scenarios.

[0034] Working principle:

[0035] The main ejector rod 3 is movably connected to the mold shell 1 through the opening 13. Its upper end, the first threaded shaft 4, engages with the threaded groove 16 within the bushing 17. The operator can rotate the turntable 7, utilizing the threaded transmission principle, to drive the first threaded shaft 4 to rotate and move up and down within the threaded groove 16, thereby adjusting the height of the main ejector rod 3 within the opening 13 and positioning it to the appropriate ejection starting position. The secondary ejector rod 5 is movably connected to the first threaded hole 2 on the mold shell 1 through a fixed threaded shaft 18. When the height of the secondary ejector rod 5 needs adjustment, the operator uses a tool to rotate the fixed threaded shaft 18. Due to the threaded engagement, the fixed threaded shaft 18 screws in or out of the first threaded hole 2, thereby driving the secondary ejector rod 5 to rise or fall, achieving height adjustment. Simultaneously, the rotating block 19 at the upper end of the secondary ejector rod 5 is movably connected to the rotating groove 20 at the lower end of the fixed block 6, allowing the secondary ejector rod 5 to rotate freely within a certain angle range, facilitating adjustment of the ejection angle according to the workpiece shape. A tightening threaded shaft 9 is movably connected through the third threaded hole 23 on the side of the fixed block 6. The cross groove 21 on the side of the tightening threaded shaft 9 facilitates rotation by the operator using tools such as screwdrivers. When the tightening threaded shaft 9 is rotated, it moves within the square groove 22 of the fixed block 6 because it is movably connected to the square shaft 11. The square shaft 11 is fixedly connected to the fixed shaft 10, which in turn is fixedly connected to the bushing 17. Thus, the position of the bushing 17 is controlled by the rotation of the tightening threaded shaft 9, ensuring a stable fit between the threaded groove 16 in the bushing 17 and the first threaded shaft 4. After adjustment, the tightening threaded shaft 9 can also be used to fix related components and prevent loosening. The second threaded holes 14 symmetrically arranged on the turntable 7 are movably connected to the second threaded shaft 15. The handle 8 at one end of the second threaded shaft 15 facilitates disassembly and assembly by the operator. When adjusting the height of the main push rod 3, the second threaded shaft 15 can be loosened to allow the turntable 7 to rotate freely; after adjustment, the second threaded shaft 15 is tightened to fix the turntable 7 in a suitable position to ensure that the main push rod 3 will not be displaced during the push-out process.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable mold ejector pin, comprising a mold shell (1), characterized in that: The mold shell (1) has a mold groove (12), an opening (13) is provided through the mold shell (1), and a plurality of first threaded holes (2) are provided on the mold shell (1). A main push rod (3) is movably connected through the opening (13).

2. The adjustable mold ejector pin according to claim 1, characterized in that, A symmetrical fixed threaded shaft (18) is movably connected inside the first threaded hole (2), and a secondary push rod (5) is fixedly connected to the upper end of the fixed threaded shaft (18).

3. An adjustable mold ejector pin according to claim 2, characterized in that, The upper end of the mold shell (1) is movably connected to a symmetrical fixing block (6), the lower end of the fixing block (6) is fixedly connected to a rotating groove (20), the upper end of the auxiliary push rod (5) is fixedly connected to a rotating block (19), and the rotating block (19) is movably connected to the rotating groove (20).

4. An adjustable mold ejector pin according to claim 3, characterized in that, The fixing block (6) has a third threaded hole (23) on its side, and a tightening threaded shaft (9) is movably connected through the third threaded hole (23). The tightening threaded shaft (9) has a cross groove (21) on its side.

5. An adjustable mold ejector pin according to claim 4, characterized in that, A square groove (22) is provided on the fixed block (6), and a square shaft (11) is movably connected in the square groove (22). One end of the tightening threaded shaft (9) is movably connected to the square shaft (11).

6. An adjustable mold ejector pin according to claim 5, characterized in that, A fixed shaft (10) is fixedly connected to the square shaft (11), and a bushing (17) is fixedly connected through the fixed shaft (10). A threaded groove (16) is provided inside the bushing (17).

7. An adjustable mold ejector pin according to claim 1, characterized in that, The upper end of the main push rod (3) is fixedly connected to a first threaded shaft (4), the first threaded shaft (4) is movably connected to a threaded groove (16), and the upper end of the first threaded shaft (4) is fixedly connected to a turntable (7).

8. An adjustable mold ejector pin according to claim 7, characterized in that, The turntable (7) has symmetrical second threaded holes (14), and a second threaded shaft (15) is movably connected in the second threaded hole (14). A handle (8) is fixedly connected to one end of the second threaded shaft (15).

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