250A high-current inner core injection mold
By designing a specific component structure for a 250A high-current inner core injection mold, the problems of complex mold structure and difficult processing were solved, the mold was simplified and the cost was reduced, and the demolding efficiency was improved.
Patent Information
- Application Number
- CN202422644299.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The injection mold structure of high-current cores is complex, especially for products with openings in two directions, which makes mold processing difficult and costly.
A mold structure including an ejector plate, an ejector, a front mold insert, a rear mold insert, an embedded block, a cylinder and other components was designed. The front mold insert and the rear mold insert were used to realize vertical opening molding, the embedded block was used to realize horizontal opening molding, and the cylinder was used to facilitate demolding.
The mold structure is simplified, the production cost is reduced, and the convenience of demoulding and the simplicity of processing are improved.
Smart Images
Figure CN223369925U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to an injection mold, in particular to a 250A high current inner core injection mold. Background Art
[0002] Since the high-current inner core needs to be connected to the corresponding terminal wires when in use, the structure is relatively complex, especially when the core has openings in two directions. The structure is relatively complex. When such products are injection molded, the mold used is relatively complex and the mold processing is difficult, so the mold cost is very high. Utility Model Content
[0003] The purpose of the present utility model is to provide a 250A high current inner core injection mold that can solve at least one of the above problems.
[0004] According to one aspect of the utility model, a 250A high-current inner core injection mold is provided, comprising an ejector plate, an ejector, a front mold insert, a rear mold insert, an embedding block, an oil cylinder, and a panel, an upper mold plate, a lower mold plate, a square iron and a bottom plate arranged in sequence from top to bottom. A front mold core is provided below the upper mold plate, and a rear mold core is provided above the lower mold plate. The front mold core and the rear mold core are arranged correspondingly and form a cavity. The ejector plate is provided on the inner side of the square iron. One end of the ejector is fixed on the ejector plate, and the other end can penetrate the lower mold plate and extend into the cavity. The front mold insert is fixed on the front mold core and extends into the cavity. The rear mold insert is fixed on the rear mold core and extends into the cavity. The embedding block and the oil cylinder are both horizontally arranged. One end of the embedding block corresponds to the cavity, and the other end is connected to the piston rod of the oil cylinder. The oil cylinder is located on the outer side of the lower mold plate.
[0005] The beneficial effects of this utility model are as follows: during molding, the front and rear mold inserts function to achieve a vertical opening in the 250A high-current inner core, i.e., the corresponding structure. The horizontally arranged insert blocks also enable the molding of horizontal openings. The front and rear mold inserts simplify the processing of the mold molding structure, resulting in a simple overall mold structure and reducing mold production costs. The presence of an oil cylinder facilitates demolding of the insert blocks, making demolding easier.
[0006] In some embodiments, a mounting base is provided on the outer side of the lower template, and the cylinder body of the oil cylinder is fixed on the mounting base. Thus, by providing the mounting base, the fixed installation of the oil cylinder can be facilitated.
[0007] In some embodiments, the 250A high-current inner core injection mold further includes a connecting block, through which the piston rod of the oil cylinder is connected to the insert block. The connecting block and the insert block are connected by a connecting rod, one end of which extends into the connecting block and the other end of which extends into the insert block. Thus, the connecting block facilitates the connection between the oil cylinder and the connecting block.
[0008] In some embodiments, the front mold insert includes a first insert, a second insert, and a third insert. The first insert and the second insert are both fixed within the front mold core. The second insert is located between the first insert and the mounting seat. There are multiple third inserts. The first insert is provided with multiple fixing holes. The third inserts correspond one-to-one with the fixing holes and are fixed within the corresponding fixing holes. Thus, the use of multiple third inserts can simplify the external shape processing difficulty of a single insert and simplify the processing difficulty of the corresponding inserts.
[0009] In some embodiments, the rear mold insert includes a fourth insert, a fifth insert, and a sixth insert. The fourth and fifth inserts are both fixed within the rear mold core. The fifth insert is located between the fourth insert and the mounting seat. The second insert and the fifth insert are disposed vertically opposite each other. The fourth insert is provided with a plurality of mounting holes. There are multiple sixth inserts, each corresponding to each mounting hole and fixed within the corresponding mounting hole. Thus, the multiple sixth inserts can simplify the external shape processing difficulty of a single insert and simplify the processing difficulty of the corresponding inserts.
[0010] In some embodiments, the 250A high-current inner core injection mold further includes a return spring and a mounting rod. One end of the mounting rod is fixed to the ejector plate, and the other end can pass through the lower mold plate. The return spring is sleeved on the mounting rod, with one end of the return spring abutting the ejector plate and the other end abutting the lower mold plate. Thus, the return spring facilitates the reset of the ejector plate and ejector.
[0011] In some embodiments, an inclined surface is provided on one side of the connecting block, and a guide surface is provided on the upper mold plate. The guide surface is inclined and cooperates with the inclined surface of the connecting block. Thus, the guide surface and the inclined surface can compress the upper mold plate against the connecting block, so that the embedded block is fixed in position during molding.
[0012] In some embodiments, a buffer block is fixed to the inclined surface outside the connecting block, and the buffer block is located between the inclined surface and the guide surface. Thus, the buffer block can reduce the hard friction between the upper template and the connecting block. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the 250A high current inner core injection mold of the utility model in the mold closing state.
[0014] Figure 2 It is a schematic cross-sectional view of a 250A high current inner core injection mold of the utility model.
[0015] Figure 3 It is a structural schematic diagram of a partial structure of a 250A high current inner core injection mold of the utility model.
[0016] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure.
[0017] Figure 5 It is a structural schematic diagram of part of the structure of the 250A high current inner core injection mold of the utility model.
[0018] Figure 6 It is a structural schematic diagram of a product obtained by injection molding a 250A high current inner core injection mold of the utility model. DETAILED DESCRIPTION
[0019] The present invention will be further described in detail below with reference to the accompanying drawings.
[0020] Reference Figures 1 to 5 . 250A high current inner core injection mold, including ejector plate 1, ejector 2, front mold insert 3, rear mold insert 4, embedding block 5, cylinder 6, and panel 7, upper mold plate 8, lower mold plate 9, square iron 10 and bottom plate 20 arranged in sequence from top to bottom, a front mold core 81 is provided below the upper mold plate 8, a rear mold core 91 is provided above the lower mold plate 9, the front mold core 81 and the rear mold core 91 are arranged correspondingly to form a cavity, the ejector plate 1 is provided on the inner side of the square iron 10, one end of the ejector 2 is fixed on the ejector plate 1, and the other end can penetrate the lower mold plate 9 and then extend into the cavity, the front mold insert 3 is fixed on the front mold core 81 and extends into the cavity, the rear mold insert 4 is fixed on the rear mold core 91 and extends into the cavity, the embedding block 5 and the cylinder 6 are both horizontally arranged, one end of the embedding block 5 corresponds to the cavity, and the other end is connected to the piston rod of the cylinder 6, and the cylinder 6 is located on the outside of the lower mold plate 9.
[0021] When the 250A high current inner core injection mold of the present invention needs to be injected, the front mold core 81 and the rear mold core 91 are closed under the action of the upper and lower mold plates; when closing the mold, the piston rod of the oil cylinder 6 extends to push the insert block 5 to cooperate with the cavity. After the mold is closed, injection molding is carried out. The vertical opening structure of the 250A high current inner core can be formed by the front mold insert 3 and the rear mold insert 4; the horizontal opening structure of the 250A high current inner core can be injection molded by the insert block 5, and finally the 250A high current inner core (such as Figure 6 shown).
[0022] A mounting seat 30 is fixed to the outer side of the lower template 9 by bolts, and the cylinder body of the oil cylinder 6 is fixed on the mounting seat 30 .
[0023] The 250A high-current inner core injection mold also includes a connecting block 40, through which the piston rod of the oil cylinder 6 is connected to the insert block 5. The connecting block 40 and the insert block 5 are connected by a connecting rod 50, one end of which extends into the connecting block 40 and the other end into the insert block 5. The provision of the connecting rod 50 increases the connection strength between the connecting block 40 and the insert block 5; the connecting block 40 and the insert block 5 are also secured by screws.
[0024] In order to facilitate the movement of the connecting block 40 and the embedded block 5 under the pushing action of the cylinder 6 and improve the smoothness of the movement, limit blocks are fixed on both sides of the mounting seat 30 by screws. The connecting block 40 is located between the two limit blocks, and the limit blocks guide the movement of the connecting block 40.
[0025] The front mold insert 3 includes a first insert 31, a second insert 32 and a third insert 33. The first insert 31 and the second insert 32 are both fixed in the front mold core 81. The second insert 32 is located between the first insert 31 and the mounting seat 30. There are multiple third inserts 33. The first insert 31 is provided with multiple fixing holes. The third inserts 33 correspond to the fixing holes one by one and are fixed in the corresponding fixing holes.
[0026] The rear mold insert 4 includes a fourth insert 41, a fifth insert 42 and a sixth insert 43. The fourth insert 41 and the fifth insert 42 are both fixed in the rear mold core 91. The fifth insert 42 is located between the fourth insert 41 and the mounting seat 30. The second insert 32 and the fifth insert 42 are arranged opposite to each other up and down. A plurality of mounting holes are provided in the fourth insert 41. There are multiple sixth inserts 43. The sixth inserts 43 correspond to the mounting holes one by one and are fixed in the corresponding mounting holes.
[0027] Through the inserts of the front mold insert 3 and the inserts of the rear mold insert 4, the corresponding structure in the 250A high current core can be formed, and the molding of the corresponding direction structure can be achieved through the cooperation of the embedded block 5 and the position of each insert.
[0028] The 250A high current inner core injection mold also includes a return spring 60 and a mounting rod 70. One end of the mounting rod 70 is fixed on the ejector plate 1, and the other end can pass through the lower template 9. The return spring 60 is sleeved on the mounting rod 70. One end of the return spring 60 abuts against the ejector plate 1, and the other end abuts against the lower template 9.
[0029] An inclined surface 401 is provided on one side of the connecting block 40 , and a guide surface 82 is provided on the upper template 8 . The guide surface 82 is inclined and matches the inclined surface 401 of the connecting block 40 .
[0030] A buffer block 80 is fixed to the inclined surface 401 outside the connecting block 40, and is located between the inclined surface 401 and the guide surface 82. The buffer block 80 can be a rubber pad. The buffer block 80 can reduce the friction generated when the upper template is pressed downward on the inclined surface 401, thereby providing a certain degree of protection.
[0031] The opening and closing process of the 250A high current inner core injection mold of the utility model is as follows:
[0032] When the mold is closed, the upper and lower mold plates 8 and 9 are pressed together, the front mold core 81 and the rear mold core 91 engage, and the piston rod of the oil cylinder 6 extends, pushing the insert block 5 into the mold cavity, where it engages with the corresponding front and rear mold inserts. When the mold is closed, the guide surface 82 of the upper mold plate 8 is pressed against the upper surface 401. Under the action of the locking force, the upper mold plate 8 acts on the connecting block 40, thereby maintaining the insert block 5 in the mold cavity and achieving stability during mold closing.
[0033] After the mold is closed, the cavity is injection molded to obtain a 250A high current inner core injection mold.
[0034] After the injection molding is completed, the mold is opened. When opening the mold, the panel 7 and the upper mold plate 8 move upward, and the front mold core 81 drives the front mold insert 3 to move upward, so that the front mold insert 3 is gradually separated from the molded workpiece, thereby realizing the demolding of the front mold insert 3. When the upper mold plate 8 moves upward, the limiting effect of the upper mold plate 8 on the inclined surface 401 of the connecting block 40 is released. When the upper mold plate 8 moves up to the corresponding height, the piston rod of the oil cylinder 6 pulls back, pulling the connecting block and the embedded block 5 to the side away from the cavity, so that the embedded block 5 is gradually separated from the workpiece, thereby realizing the demolding of the embedded block 5. When the embedded block 5 is pulled out by the oil cylinder 6 to be completely separated from the workpiece, the ejector plate 1 moves upward, and the ejector plate 1 drives the ejector 2 to move upward. Under the action of the ejector 2, the workpiece is ejected from the cavity, thereby realizing the demolding of the workpiece.
[0035] When the ejector plate 1 moves upward, the return spring 60 is compressed; when the ejector 2 completes ejection, the rebound force of the return spring 60 pushes the ejector plate 1 downward to return to its original position, completing the return position and facilitating the next mold closing and opening.
[0036] The above are only preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. 250A high current inner core injection mold, characterized by: The invention comprises an ejector plate (1), an ejector pin (2), a front mold insert (3), a rear mold insert (4), an embedding block (5), an oil cylinder (6), and a panel (7), an upper mold plate (8), a lower mold plate (9), a square iron (10) and a bottom plate (20) arranged in sequence from top to bottom. A front mold core (81) is provided below the upper mold plate (8), a rear mold core (91) is provided above the lower mold plate (9), the front mold core (81) and the rear mold core (91) are arranged correspondingly to form a mold cavity, and the ejector plate (1) is provided on the square iron (10). ) inside, one end of the ejector pin (2) is fixed on the ejector pin plate (1), and the other end can penetrate the lower template (9) and extend into the mold cavity, the front mold insert (3) is fixed on the front mold core (81) and extends into the mold cavity, the rear mold insert (4) is fixed on the rear mold core (91) and extends into the mold cavity, the embedded block (5) and the oil cylinder (6) are both arranged horizontally, one end of the embedded block (5) corresponds to the mold cavity, and the other end is connected to the piston rod of the oil cylinder (6), and the oil cylinder (6) is located on the outside of the lower template (9).
2. The 250A high current inner core injection mold according to claim 1, characterized in that: A mounting seat (30) is provided on the outer side of the lower template (9), and the cylinder body of the oil cylinder (6) is fixed on the mounting seat (30).
3. The 250A high current inner core injection mold according to claim 2, characterized in that: The invention also includes a connecting block (40), wherein the piston rod of the oil cylinder (6) is connected to the embedded block (5) via the connecting block (40), and the connecting block (40) and the embedded block (5) are connected via a connecting rod (50), wherein one end of the connecting rod (50) extends into the connecting block (40) and the other end extends into the embedded block (5).
4. The 250A high current inner core injection mold according to claim 3, characterized in that: The front mold insert (3) includes a first insert (31), a second insert (32) and a third insert (33), wherein the first insert (31) and the second insert (32) are both fixed in the front mold core (81), the second insert (32) is located between the first insert (31) and the mounting seat (30), and there are multiple third inserts (33). The first insert (31) is provided with multiple fixing holes, and the third inserts (33) correspond to the fixing holes one by one and are fixed in the corresponding fixing holes.
5. The 250A high current inner core injection mold according to claim 4, characterized in that: The rear mold insert (4) includes a fourth insert (41), a fifth insert (42) and a sixth insert (43). The fourth insert (41) and the fifth insert (42) are both fixed in the rear mold core (91). The fifth insert (42) is located between the fourth insert (41) and the mounting seat (30). The second insert (32) and the fifth insert (42) are arranged opposite to each other in the upper and lower parts. A plurality of mounting holes are provided in the fourth insert (41). There are a plurality of sixth inserts (43). The sixth inserts (43) correspond to the mounting holes one by one and are fixed in the corresponding mounting holes.
6. The 250A high current inner core injection mold according to any one of claims 1 to 5, characterized in that: It also includes a return spring (60) and a mounting rod (70), one end of the mounting rod (70) is fixed on the ejector plate (1), and the other end can pass through the lower template (9), the return spring (60) is sleeved on the mounting rod (70), one end of the return spring (60) is in contact with the ejector plate (1), and the other end is in contact with the lower template (9).
7. The 250A high current inner core injection mold according to claim 5, characterized in that: One side of the connecting block (40) is provided with an inclined surface (401), and the upper template (8) is provided with a guide surface (82). The guide surface (82) is inclined and matched with the inclined surface (401) of the connecting block (40).
8. The 250A high current inner core injection mold according to claim 7, characterized in that: A buffer block (80) is fixed on the inclined surface (401) outside the connecting block (40), and the buffer block (80) is located between the inclined surface (401) and the guide surface (82).