Mold frame with mold core convenient to replace

Abstract

The utility model discloses a mold frame with a mold core convenient to replace, and relates to the technical field of mold frames. The lower mold frame is arranged at the upper end of the fixed mounting table plate, a mold core body is arranged on the lower side in the lower mold frame, a limiting movable sleeve rod located on the inner side of the fixed mounting table plate is arranged on the inner side of the lower end of the lower mold frame, and a first adjusting rod is arranged in the limiting movable sleeve rod; an adjusting disc is arranged at the outer end of the first adjusting rod, a second adjusting rod is arranged above the outer side of the adjusting disc, and a movable crank is arranged at the upper end of the second adjusting rod; the technical problems that after compression molding, due to the phenomena of thermal expansion and cold contraction and the like, materials are stuck in a mold core and are difficult to take, the materials still remain in the mold due to replacement of a traditional mold core, and meanwhile, in the material compression molding process, positioning and guiding are not convenient, and the phenomenon that an upper mold and a lower mold are not attached is easily caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold bases, in particular to a mold base which is convenient for replacing mold cores. Background Art

[0002] The die frame is the support of the mold. For example, on a die-casting machine, the various parts of the mold are combined and fixed according to a certain rule and position, and the part that enables the mold to be installed on the die-casting machine is called the die frame. It consists of an ejection mechanism, a guide mechanism, a pre-reset mechanism, a die foot pad, and a seat plate. However, with the changes in the market environment, a mold frame that is easy to replace the mold core becomes particularly important.

[0003] In the Chinese authorization announcement number CN221454083U, a stamping mold frame is disclosed, including: an upper mold frame, a lower mold frame, an upper mold core, a lower mold core and a guide rod; the upper mold frame and the lower mold frame are connected by a guide rod, and the guide rods are symmetrically arranged at the four corners of the upper mold frame and the lower mold frame; the lower surface of the upper mold frame is connected to the upper mold core, and the lower side of the upper mold core is correspondingly arranged with the lower mold core, and the lower mold core is slidably connected to the upper surface of the lower mold frame, and a number of slide rails are arranged on the surface of the lower mold frame, and a slide groove corresponding to the slide rail is arranged at the bottom of the lower mold core, and an elastic limit mechanism is arranged along the length direction of the slide rail, which solves the problem of rapid replacement and installation of the mold core body.

[0004] Compared with the above-mentioned mold frame, the following defects still exist: after compression molding, the material will be stuck in the mold core and difficult to remove due to phenomena such as thermal expansion and contraction. Traditional mold core replacement will still cause the material to remain in the mold. At the same time, it is not convenient to position and guide the material during the compression molding process, which can easily lead to the phenomenon that the upper mold and the lower mold do not fit together. Utility Model Content

[0005] The purpose of the present utility model is to provide a mold frame that is easy to replace the mold core, and to solve the following technical problems: after compression molding, the material will be stuck in the mold core due to thermal expansion and contraction, and it is difficult to remove it. The traditional mold core replacement will still cause the material to remain in the mold. At the same time, it is not convenient to position and guide the material during the compression molding process, which may easily lead to the phenomenon that the upper mold and the lower mold do not fit together.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A mold frame that is easy to replace the mold core and a fixed installation plate;

[0008] A lower mold frame is provided on the upper end of the fixed installation table, a mold core body is provided on the lower inner side of the lower mold frame, a limiting movable sleeve rod is provided on the inner side of the fixed installation table at the lower end inner side of the lower mold frame, a first adjusting rod is provided inside the limiting movable sleeve rod, an adjusting disk is provided on the outer end of the first adjusting rod, a second adjusting rod is provided on the upper outer side of the adjusting disk, and a movable crank is provided on the upper end of the second adjusting rod;

[0009] A movable support rod is provided on the inner side of the position-limiting movable sleeve rod, return springs are provided on the inner sides of the upper and lower ends of the movable support rod, and an auxiliary pulley is provided on the inner end of the movable support rod;

[0010] An outer frame is fixedly installed on the upper end of the fixed mounting table, a hydraulic telescopic rod is provided on the inner upper side of the outer frame, a mounting base plate is provided on the lower end of the hydraulic telescopic rod, a mounting connecting frame is provided on the outer side of the mounting base plate, an upper template is provided on the lower end of the mounting connecting frame, and a limiting rod connected to the lower mold frame is provided on the lower side of the outer end of the mounting connecting frame.

[0011] As a further solution of the present invention: fixed legs with a stable supporting function are fixedly installed on the lower end of the fixed installation platform, and the fixed legs are evenly arranged at the four corners of the lower end of the fixed installation platform.

[0012] As a further solution of the present invention: the position-limiting movable sleeve rod is connected to the first adjusting rod by means of threads, and the position-limiting movable sleeve rod is connected to the lower mold frame by means of plugging.

[0013] As a further solution of the present invention: the first adjusting rod and the adjusting disk are vertically fixedly connected, and the adjusting disk and the second adjusting rod are connected in a meshing manner.

[0014] As a further solution of the present invention: the movable support rod forms an elastic telescopic structure in the fixed installation table through a reset spring, and the outer surface of the auxiliary pulley rotatably connected to the inner end of the movable support rod is fitted with the outer surface of the lower end of the core body.

[0015] As a further solution of the present invention: movable blocks connected to the mounting connection frame are provided on the upper sides of the left and right ends of the mounting base plate, and slots are provided on the inner sides of the outer ends of the movable blocks.

[0016] As a further solution of the present invention: the movable block forms a rotating structure on the mounting connection frame through a built-in bearing, and the cross-sectional dimension of the notch is larger than the cross-sectional dimension of the outer end of the mounting base plate.

[0017] As a further solution of the present invention: the mounting connection frame forms a nested lifting structure on the lower mold frame through a limiting rod, and the outer surfaces of the mold core body and the upper template are both fitted with the inner wall of the lower mold frame.

[0018] Beneficial effects of the utility model:

[0019] 1. Through the meshing connection between the adjusting disk and the second adjusting rod, when the movable crank is rotated, the second adjusting rod can drive the adjusting disk to rotate synchronously, so that the limiting movable sleeve rod threadedly connected to the first adjusting rod moves inward, so as to drive the movable support rod to move inward. The auxiliary pulley rotatably connected to the inner end is used to lift the mold core body upward to eject the die-cast material to achieve the purpose of taking out the material. When the limiting movable sleeve rod returns to the outermost end, the movable support rod will reset under the action of the reset spring, and the lower mold frame can be taken out as a whole;

[0020] 2. The mounting bracket is connected to the mounting base plate by snapping. At this time, rotate the movable block to fit and fix it to the mounting base plate to avoid shaking of the mounting bracket. When the hydraulic telescopic rod is opened to slightly lower the mounting bracket, the limit rods fixed on the left and right sides of the lower end of the mounting bracket are docked with the lower mold frame. Under this operation, the upper template and the lower mold frame can be accurately docked to avoid shaking and displacement during later die-casting. At the same time, the mold frame can be combined and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This utility model Figure 1 A in the middle is an enlarged structural diagram;

[0024] Figure 3 This is a schematic top view of the cross-sectional structure of the connection between the first adjusting rod and the adjusting disk of the utility model;

[0025] Figure 4 It is a schematic top view of the cross-sectional structure of the connection between the mounting base plate and the mounting connecting frame of the utility model.

[0026] In the figure: 1. Fixed mounting plate; 2. Fixed support legs; 3. Lower mold frame; 4. Core body; 5. Limit movable sleeve rod; 6. First adjusting rod; 7. Adjusting plate; 8. Second adjusting rod; 9. Movable crank; 10. Movable support rod; 11. Return spring; 12. Auxiliary pulley; 13. Outer frame; 14. Hydraulic telescopic rod; 15. Mounting base plate; 16. Mounting connecting frame; 17. Movable block; 18. Notch; 19. Upper template; 20. Limit rod. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1 、 Figure 2 and Figure 3 As shown, the utility model is a mold frame that is convenient for replacing the mold core. Specifically, after the die is pressed and formed, the material is ejected and discharged to avoid the material being stuck in the mold. At the same time, the mold core can be disassembled and replaced, including a fixed mounting platen 1; a lower mold frame 3 is arranged on the upper end of the fixed mounting platen 1, a mold core body 4 is arranged on the lower side of the lower mold frame 3, a limiting movable sleeve rod 5 is arranged on the inner side of the fixed mounting platen 1 at the inner side of the lower end of the lower mold frame 3, a first adjusting rod 6 is arranged inside the limiting movable sleeve rod 5, an adjusting disk 7 is arranged on the outer end of the first adjusting rod 6, a second adjusting rod 8 is arranged on the upper side of the outer side of the adjusting disk 7, and a movable crank 9 is arranged on the upper end of the second adjusting rod 8;

[0030] A movable support rod 10 is provided on the inner side of the limiting movable sleeve rod 5, and reset springs 11 are provided on the inner sides of the upper and lower ends of the movable support rod 10. An auxiliary pulley 12 is provided on the inner end of the movable support rod 10, which can perform a reset operation under the action of the reset spring 11.

[0031] In this embodiment, preferably, a fixed leg 2 with a stable supporting function is fixedly installed at the lower end of the fixed mounting platform 1. The fixed legs 2 are evenly arranged at the four corners of the lower end of the fixed mounting platform 1, so that the fixed mounting platform 1 can be stably limited and supported under the action of the fixed legs 2 to avoid shaking.

[0032] In this embodiment, preferably, the limiting movable sleeve rod 5 is connected to the first adjusting rod 6 by means of a thread, and the limiting movable sleeve rod 5 is connected to the lower mold frame 3 by means of a plug-in connection. When the first adjusting rod 6 rotates, the first adjusting rod 6 can be driven to slide in a snap-fit ​​manner in the fixed mounting plate 1, thereby plugging into the lower mold frame 3 and limiting it in the fixed mounting plate 1.

[0033] In this embodiment, preferably, the first adjusting rod 6 and the adjusting disk 7 are vertically fixedly connected, and the adjusting disk 7 and the second adjusting rod 8 are connected in an engaging manner, which can drive the second adjusting rod 8 to rotate synchronously when the movable crank 9 is rotated, thereby rotating the adjusting disk 7 under the action of the engaging link.

[0034] In this embodiment, preferably, the movable support rod 10 forms an elastic telescopic structure in the fixed mounting plate 1 through the return spring 11, and the outer surface of the auxiliary pulley 12 rotatably connected to the inner end of the movable support rod 10 is fitted with the outer surface of the lower end of the core body 4. When the movable crank 9 is rotated again to move the limiting movable sleeve rod 5 toward the inner end under the action of the linkage, the movable support rod 10 can be moved inward as a whole, prompting the auxiliary pulley 12 to be fitted and connected to the core body 4, and the core body 4 is pushed upward as a whole.

[0035] When the movable crank handle 9 is rotated, the second adjusting rod 8 can drive the adjusting disc 7 to rotate synchronously, so that the limiting movable sleeve rod 5 threadedly connected with the first adjusting rod 6 moves inward, thereby inserting the lower mold frame 3 engaged in the fixed mounting table 1, so that the lower mold frame 3 is limited in the fixed mounting table 1. At the same time, after the die-casting is completed, the movable crank handle 9 is rotated again to make the limiting movable sleeve rod 5 go deeper inward, pushing the movable support rod 10 to move inward, and the outer surface of the auxiliary pulley 12 connected to the inner side of the movable support rod 10 is fitted with the outer surface of the lower end of the mold core body 4, so that the mold core body 4 can be lifted upward as a whole, which is convenient for ejecting the die-cast material. When the limiting movable sleeve rod 5 returns to the outermost end, the movable support rod 10 will be reset under the action of the reset spring 11, and the lower mold frame 3 can be taken out as a whole.

[0036] Example 2

[0037] Reference Figure 1 and Figure 4 As shown in the figure, it is the second embodiment of the present invention, specifically, before the material is pressed, the upper mold and the lower mold can be positioned and guided to avoid the phenomenon that the molds do not fit together, and the mold frame can be combined and assembled, including a fixed mounting plate 1 with an outer frame 13 fixedly mounted on the upper end, a hydraulic telescopic rod 14 is provided on the inner upper side of the outer frame 13, a mounting base 15 is provided at the lower end of the hydraulic telescopic rod 14, a mounting base 15 is provided at the outer side of the mounting base 15, a mounting connecting frame 16 is provided at the lower end of the mounting connecting frame 16, an upper template 19 is provided at the lower end of the mounting connecting frame 16, and a limiting rod 20 connected to the lower mold frame 3 is provided on the lower outer end of the mounting connecting frame 16.

[0038] In this embodiment, preferably, movable blocks 17 connected to the mounting connecting frame 16 are provided on the upper sides of the left and right ends of the mounting base plate 15, and a slot 18 is provided on the inner side of the outer end of the movable block 17, which enables the mounting base plate 15 to be engaged with the inner side of the mounting connecting frame 16.

[0039] In this embodiment, preferably, the movable block 17 forms a rotating structure on the mounting connecting frame 16 through a built-in bearing, and the cross-sectional dimension of the notch 18 is larger than the cross-sectional dimension of the outer end of the mounting base plate 15. When the movable block 17 is rotated, the mounting base plate 15 will be limited to the inner side of the mounting connecting frame 16. When rotated 180°, the notch 18 is located on the upper side of the mounting base plate 15 and the mounting base plate 15 can be taken out.

[0040] In this embodiment, preferably, the connecting frame 16 is installed to form a nested lifting structure on the lower mold frame 3 through the limiting rod 20, and the outer surfaces of the core body 4 and the upper template 19 are both fitted with the inner wall of the lower mold frame 3, so that the lower mold frame 3 and the upper template 19 can be accurately positioned before die-casting, thereby avoiding shaking and displacement during die-casting.

[0041] In summary, before die-casting, the mounting connecting frame 16 is docked and engaged with the mounting base plate 15 as a whole. At this time, the movable block 17 is rotated to make it fit and fix with the mounting base plate 15 to avoid shaking of the mounting connecting frame 16. At this time, the hydraulic telescopic rod 14 is opened to slightly lower the mounting connecting frame 16, so that the limit rods 20 fixed on the left and right sides of the lower end of the mounting connecting frame 16 are docked with the lower mold frame 3. Under this operation, the upper template 19 can be accurately docked with the lower mold frame 3, avoiding shaking and displacement during later die-casting, and the mold frame can be combined and assembled at the same time.

[0042] Example 3

[0043] This embodiment is obtained by combining the first embodiment and the second embodiment.

[0044] Through the disassembly, installation and ejection operations of the mold core and the installation of the mold frame, not only can the mold be adapted to different models for die casting after disassembly and replacement, but it is also convenient for free transportation after disassembly to avoid the phenomenon of materials being stuck in the mold.

[0045] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A mold base that is convenient for replacing mold cores, characterized in that: include; A fixed mounting plate (1); A lower mold frame (3) is arranged at the upper end of the fixed installation table (1), a mold core body (4) is arranged on the lower side of the interior of the lower mold frame (3), a limiting movable sleeve rod (5) located on the inner side of the fixed installation table (1) is arranged on the inner side of the lower end of the lower mold frame (3), a first adjustment rod (6) is arranged inside the limiting movable sleeve rod (5), an adjustment disk (7) is arranged at the outer end of the first adjustment rod (6), a second adjustment rod (8) is arranged above the outer side of the adjustment disk (7), and a movable crank (9) is arranged at the upper end of the second adjustment rod (8); A movable support rod (10) is provided on the inner side of the position-limiting movable sleeve rod (5), return springs (11) are provided on the inner sides of the upper and lower ends of the movable support rod (10), and an auxiliary pulley (12) is provided on the inner end of the movable support rod (10); An outer frame (13) is fixedly mounted on the upper end of the fixed mounting plate (1), a hydraulic telescopic rod (14) is arranged on the inner upper side of the outer frame (13), a mounting base plate (15) is arranged on the lower end of the hydraulic telescopic rod (14), a mounting connecting frame (16) is arranged on the outer side of the mounting base plate (15), an upper template (19) is arranged on the lower end of the mounting connecting frame (16), and a limiting rod (20) connected to the lower mold frame (3) is arranged on the lower side of the outer end of the mounting connecting frame (16).

2. A mold base for facilitating mold core replacement according to claim 1, characterized in that: Fixed legs (2) with a stable support function are fixedly mounted on the lower end of the fixed installation platform (1), and the fixed legs (2) are evenly arranged at the four corners of the lower end of the fixed installation platform (1).

3. A mold base for facilitating mold core replacement according to claim 1, characterized in that: The position-limiting movable sleeve rod (5) and the first regulating rod (6) are connected in a threaded manner, and the position-limiting movable sleeve rod (5) and the lower mold frame (3) are connected in a plug-in manner.

4. A mold base for facilitating mold core replacement according to claim 3, characterized in that: The first adjusting rod (6) and the adjusting disk (7) are vertically fixedly connected, and the adjusting disk (7) and the second adjusting rod (8) are connected in a meshing manner.

5. A mold base for facilitating mold core replacement according to claim 1, characterized in that: The movable support rod (10) forms an elastic telescopic structure in the fixed installation platform (1) through a return spring (11), and the outer surface of the auxiliary pulley (12) rotatably connected to the inner end of the movable support rod (10) is arranged to fit the outer surface of the lower end of the core body (4).

6. A mold base for facilitating mold core replacement according to claim 1, characterized in that: The upper sides of both left and right ends of the installation base plate (15) are provided with movable blocks (17) connected to the installation connecting frame (16), and the inner sides of the outer ends of the movable blocks (17) are provided with notches (18).

7. A mold frame for facilitating mold core replacement according to claim 6, characterized in that: The movable block (17) forms a rotating structure on the mounting connection frame (16) through a built-in bearing, and the cross-sectional dimension of the notch (18) is larger than the cross-sectional dimension of the outer end of the mounting base plate (15).

8. A mold frame for facilitating mold core replacement according to claim 6, characterized in that: The mounting connection frame (16) forms a nested lifting structure on the lower mold frame (3) through a limiting rod (20), and the outer surfaces of the mold core body (4) and the upper mold plate (19) are both arranged to fit the inner wall of the lower mold frame (3).

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