Die-casting die without ejector pin mark

Abstract

The utility model discloses a die-casting die without an ejector pin mark, which comprises a die assembly, a lower die assembly and an upper die assembly, and is characterized in that the die assembly comprises a lower die, a connecting plate and a connecting seat; the installation inspection assembly comprises a fixed frame, a through hole, a movable plate, a limiting groove and a limiting plate; the fixed frame is fixed to the bottom end of the connecting plate, the through hole is formed in one side of the fixed frame, the movable plate is clamped between the through hole and the inner side of the fixed frame, the limiting groove is formed in the other end of the inner side of the fixed frame, and the limiting plate is fixed to the center of the inner side end of the movable plate. According to the utility model, the inspection assembly is installed, the movable plate is inserted into the through hole, and the movable plate is pushed, so that the movable plate drives the limiting plate to be inserted into the limiting groove, and the limiting groove limits the moved movable plate; therefore, whether the bottom end of the ejector pin completely enters the connecting plate or not can be quickly checked in the moving process of the moving plate.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a die-casting mold without ejector pins. Background Technology

[0002] A mold is a tool used in industrial production. It shapes raw materials into specific shapes and sizes by applying physical forces such as pressure, heat, and centrifugal force. There are many types of molds, including die-casting molds without ejector pins.

[0003] In existing die-casting molds without ejector pins, material is filled into the lower mold, and then the material is initially formed by die-casting through the upper and lower molds. Then, ejector pins extend from inside the mold and press against the ejector pin points on the initially formed material, thereby removing excess material and ultimately forming the product without ejector pin marks on the surface. However, when installing ejector pins, a small hammer is needed to tap each ejector pin individually to insert them all into the mold. But with a large number of ejector pins, it is impossible to quickly check whether they are installed correctly. If some are not installed correctly, it will affect the normal use of the mold. Therefore, a die-casting mold without ejector pins with auxiliary installation is needed to facilitate quick inspection. Utility Model Content

[0004] The purpose of this utility model is to provide a die-casting mold without an ejector pin, thereby solving the problems mentioned in the background art. To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a die-casting mold without an ejector pin, comprising:

[0006] A mold assembly, comprising a lower mold, a connecting plate, and a connecting seat; the connecting seats are arranged in a set, with the lower mold fixed to the top of the connecting seat and the connecting plate slidably connected between the connecting seats;

[0007] The installation inspection assembly includes a fixed frame, a through hole, a movable plate, a limiting groove, and a limiting plate. The fixed frame is fixed to the bottom of the connecting plate, the through hole is opened on one side of the fixed frame, the movable plate is snapped between the through hole and the inner side of the fixed frame, the limiting groove is opened on the other end of the inner side of the fixed frame, and the limiting plate is fixed to the center of the inner end of the movable plate and is inserted into the limiting groove.

[0008] Furthermore, a magnetic rod is fixedly connected to the inner end of the limiting groove, and the magnetic rod is attracted to the limiting plate. The other two ends of the inner side of the fixing frame are provided with slots.

[0009] Furthermore, sliding rods are fixedly connected to both sides of the movable plate, and the sliding rods are slidably connected to the slots. A fixed plate is fixedly connected to the center of the outer side of the fixed frame and the movable plate, and the two fit together.

[0010] Furthermore, the fixing plate has a threaded connection to a limit rod, and a circular hole is formed at the connection between the fixing plate and the limit rod.

[0011] Furthermore, the mold assembly also includes an upper mold, ejector pins, and pin points; the upper mold is located above the lower mold, the ejector pins are arranged in a group and are all fixed to the top of the connecting plate, the top of the ejector pins penetrates into the inner side of the lower mold, and the pin points are located on the product and correspond to the ejector pins.

[0012] Furthermore, it also includes auxiliary placement components;

[0013] The auxiliary placement component includes a groove, a fixing frame, and a limiting rod; the groove is opened at the top of the slide rod, the fixing frame is fixed to both sides of the bottom end of the fixing frame, and the limiting rod is fixed to the middle of the inner side of the vertical surface of the fixing frame.

[0014] Furthermore, a slot is provided between the fixing frame and the limiting rod, the slot is inserted into the sliding rod, and a snap-fit ​​rod is fixedly connected to the center of the bottom end of the limiting rod, the snap-fit ​​rod is snapped into the groove and attracted to it.

[0015] This utility model has the following beneficial effects:

[0016] This utility model, by setting up an installation inspection component, after the ejector pin is installed, inserts the movable plate into the through hole and pushes the movable plate, so that the movable plate drives the limiting plate into the limiting groove, so that the limiting groove limits the movable plate after it has moved. Since the through hole is located above one side of the fixed frame, the top of the movable plate is in contact with the bottom of the connecting plate. If the bottom of the ejector pin is not fully inserted into the connecting plate, the movable plate will abut against the protruding ejector pin when it moves, so that the movable plate can quickly check whether the bottom of the ejector pin is fully inserted into the connecting plate during the movement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the needle point structure of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the fixing frame and connecting plate of this utility model;

[0021] Figure 4This is an exploded view of the movable plate and fixed frame of this utility model;

[0022] Figure 5 This is an exploded structural diagram of the magnetic rod and limiting groove of this utility model;

[0023] Figure 6 This is a schematic diagram of the auxiliary placement component structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the auxiliary placement component of this utility model when in use.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 11. Upper mold; 12. Lower mold; 13. Connecting plate; 14. Ejector pin; 15. Connecting seat; 16. Pin point; 21. Fixing frame; 22. Through hole; 23. Moving plate; 24. Limiting groove; 241. Magnetic rod; 25. Limiting plate; 26. Slot; 27. Sliding rod; 28. Fixing plate; 29. ​​Limiting rod; 31. Groove; 32. Fixing bracket; 33. Limiting rod; 34. Insertion groove; 35. Snap-fit ​​rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figures 1-6 As shown, this utility model is a die-casting mold without an ejector pin, comprising:

[0030] The mold assembly includes a lower mold 12, a connecting plate 13, and a connecting seat 15; the connecting seats 15 are arranged in a set, the lower mold 12 is fixed to the top of the connecting seat 15, and the connecting plate 13 is slidably connected between the connecting seats 15.

[0031] The mold assembly also includes an upper mold 11, ejector pins 14 and pin points 16; the upper mold 11 is located above the lower mold 12, the ejector pins 14 are arranged in a group and are all fixed to the top of the connecting plate 13, the top of the ejector pins 14 penetrates to the inside of the lower mold 12, and the pin points 16 are located on the product and correspond to the ejector pins 14.

[0032] The upper mold 11 and the lower mold 12 work together to die-cast the material. The connecting plate 13 is used to connect the ejector pin 14. The ejector pin 14 is used to push the molded product out of the mold. The connecting seat 15 is used to connect the lower mold 12 and the connecting plate 13. The pin point 16 is used to push the ejector pin 14.

[0033] The installation and inspection assembly includes a fixed frame 21, a through hole 22, a movable plate 23, a limiting groove 24, and a limiting plate 25. The fixed frame 21 is fixed to the bottom of the connecting plate 13. The through hole 22 is opened on one side of the fixed frame 21. The movable plate 23 is snapped between the through hole 22 and the inner side of the fixed frame 21. The limiting groove 24 is opened at the other end of the inner side of the fixed frame 21. The limiting plate 25 is fixed to the center of the inner end of the movable plate 23 and is inserted into the limiting groove 24.

[0034] The fixed frame 21 is used for opening the perforation 22 and connecting the movable plate 23. The perforation 22 is used for the movable plate 23 to be inserted into the inside of the fixed frame 21. The movable plate 23 is used to check whether the ejector pin 14 has been fully inserted into the connecting plate 13. The limiting groove 24 is used for the insertion of the limiting plate 25. The limiting plate 25 is used for the connection between the movable plate 23 and the inside of the fixed frame 21.

[0035] A magnetic rod 241 is fixedly connected to the inner end of the limiting groove 24. The magnetic rod 241 is attracted to the limiting plate 25. The other two ends of the inner side of the fixing frame 21 are provided with slots 26.

[0036] The magnetic rod 241 is used to limit the insertion of the limiting plate 25. When the limiting plate 25 is inserted into the limiting groove 24, the magnetic rod 241 is attracted to the inner end of the limiting plate 25 by magnetic force, thereby limiting the insertion of the limiting plate 25 and the moving plate 23.

[0037] Slide rods 27 are fixedly connected to both sides of the movable plate 23. The slide rods 27 are slidably connected to the slots 26. A fixed plate 28 is fixedly connected to the center of the outer side of the fixed frame 21 and the movable plate 23. The two fit together.

[0038] The fixing plate 28 is threaded through the limit rod 29 at the connection point, and the fixing plate 28 has a circular hole at the connection point with the limit rod 29;

[0039] The slot 26 is used for the connection and movement of the slide rod 27. The slide rod 27 is used for the connection between the two sides of the moving plate 23 and the inner side of the fixed frame 21. The fixed plate 28 is used for the rotation and insertion of the limiting rod 29. The limiting rod 29 further limits the movement plate 23 after insertion. When the moving plate 23 is inserted into the through hole 22, it drives the slide rod 27 to be inserted into the slot 26 together. The slide rod 27 moves in the slot 26, causing the fixed frame 21 and the fixed plate 28 on the surface of the moving plate 23 to fit together, so that the circular holes are aligned. Thus, the limiting rod 29 can be rotated and inserted into the circular hole, which can further limit the movement plate 23 after insertion.

[0040] Working principle: When the component is in use, the ejector pin 14 is not installed on the connecting plate 13. When the component is in use, the ejector pin 14 is fully installed into the connecting plate 13. Then, the moving plate 23 is inserted into the through hole 22 by hand, so that the moving plate 23 drives the slide rod 27 into the slot 26 together. Pushing the moving plate 23 causes the slide rod 27 to move in the slot 26, and the limiting plate 25 is inserted into the limiting groove 24, so that the magnetic rod 241 is attracted to the inner end of the limiting plate 25 by magnetic force, thereby limiting the limiting plate 25 and the moving plate 23 after insertion. Since the through hole 22 is located in the solid... The fixed frame 21 is positioned above one side, so that the top of the movable plate 23 fits against the bottom of the connecting plate 13. If the bottom of the ejector pin 14 is not fully inserted into the connecting plate 13, the movable plate 23 will abut against the exposed ejector pin 14 when it moves. This allows the movable plate 23 to quickly check whether the bottom of the ejector pin 14 is fully inserted into the connecting plate 13 during its movement. After the check, since the fixed frame 21 and the fixed plate 28 on the surface of the movable plate 23 are fitted together, the circular holes on the surfaces of the two are aligned. The limiting rod 29 is rotated and inserted into the circular hole by hand to further limit the movement of the movable plate 23 after insertion.

[0041] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0042] It also includes auxiliary placement components;

[0043] The auxiliary placement component includes a groove 31, a fixing frame 32, and a limiting rod 33; the groove 31 is opened at the top of the slide bar 27, the fixing frame 32 is fixed to both sides of the bottom end of the fixing frame 21, and the limiting rod 33 is fixed to the middle of the inner side of the vertical surface of the fixing frame 32;

[0044] The groove 31 is used for the insertion of the locking rod 35, and the fixing bracket 32 ​​is used for the connection of the limiting rod 33 and the placement of the slide rod 27. The limiting rod 33 limits the placement of the slide rod 27.

[0045] A slot 34 is provided between the fixed frame 32 and the limiting rod 33. The slot 34 is inserted into the slide rod 27. A snap-fit ​​rod 35 is fixedly connected to the center of the bottom end of the limiting rod 33. The snap-fit ​​rod 35 is snapped into the groove 31 and attracted to it.

[0046] The insertion slot 34 is used for inserting the slide rod 27, and the locking rod 35 is used for inserting into the groove 31, thereby limiting the slide rod 27 after it is inserted into the insertion slot 34, and then placing the removed movable plate 23, so that maintenance personnel can inspect the inside of the fixed frame 21 and the limiting slot 24, remove the movable plate 23, insert the slide rod 27 into the insertion slot 34, so that the locking rod 35 is inserted into the groove 31, thereby limiting the slide rod 27 and the movable plate 23 after placement.

[0047] Working principle: When the component is not in use, the movable plate 23 is engaged with the inner side of the fixed frame 21. When the inner side of the fixed frame 21 and the limiting groove 24 is being inspected, the movable plate 23 is removed by hand, and the slide rod 27 is inserted into the insertion groove 34, so that the locking rod 35 is inserted into the groove 31. Since the surface of the locking rod 35 has magnetic force, the locking rod 35 is attracted to the groove 31 by magnetic force, thereby limiting the sliding rod 27 and the movable plate 23 after placement, which makes it easier for maintenance personnel to inspect the inner side of the fixed frame 21 and the limiting groove 24.

[0048] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A die-casting mold without an ejector pin, characterized in that, include: The mold assembly includes a lower mold (12), a connecting plate (13), and a connecting seat (15); the connecting seats (15) are arranged in a set, the lower mold (12) is fixed to the top of the connecting seat (15), and the connecting plate (13) is slidably connected between the connecting seats (15); The installation inspection assembly includes a fixed frame (21), a through hole (22), a movable plate (23), a limiting groove (24), and a limiting plate (25). The fixed frame (21) is fixed to the bottom of the connecting plate (13), the through hole (22) is opened on one side of the fixed frame (21), the movable plate (23) is snapped between the through hole (22) and the inner side of the fixed frame (21), the limiting groove (24) is opened at the other end of the inner side of the fixed frame (21), and the limiting plate (25) is fixed to the center of the inner end of the movable plate (23) and is inserted into the limiting groove (24).

2. The die-casting mold without ejector pins according to claim 1, characterized in that: A magnetic rod (241) is fixedly connected to the inner end of the limiting groove (24). The magnetic rod (241) is attracted to the limiting plate (25). The other two ends of the fixed frame (21) are provided with slots (26).

3. The die-casting mold without ejector pins according to claim 2, characterized in that: The movable plate (23) is fixedly connected to slide rods (27) on both sides. The slide rods (27) are slidably connected to the slots (26). The fixed frame (21) is fixedly connected to the center of the outer side of the movable plate (23) with a fixed plate (28). The two are in close contact.

4. The die-casting mold without ejector pins according to claim 3, characterized in that: The fixing plate (28) is threaded through the limiting rod (29) at the connection point, and the fixing plate (28) has a circular hole at the connection point with the limiting rod (29).

5. The die-casting mold without ejector pins according to claim 1, characterized in that: The mold assembly also includes an upper mold (11), ejector pins (14) and pin points (16); the upper mold (11) is located above the lower mold (12), the ejector pins (14) are set together and are all fixed to the top of the connecting plate (13), the top of the ejector pins (14) extends through to the inside of the lower mold (12), and the pin points (16) are located on the product and correspond to the ejector pins (14).

6. The die-casting mold without ejector pins according to claim 1, characterized in that: It also includes auxiliary placement components; The auxiliary placement component includes a groove (31), a fixing frame (32), and a limiting rod (33); the groove (31) is opened at the top of the slide rod (27), the fixing frame (32) is fixed on both sides of the bottom end of the fixing frame (21), and the limiting rod (33) is fixed in the middle of the inner side of the vertical surface of the fixing frame (32).

7. The die-casting mold without ejector pins according to claim 6, characterized in that: The fixed frame (32) and the limiting rod (33) are provided with a plug groove (34), the plug groove (34) is plugged into the slide rod (27), and a snap-fit ​​rod (35) is fixedly connected to the center of the bottom end of the limiting rod (33). The snap-fit ​​rod (35) is snapped into the groove (31) and attracted to it.

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