Secondary ejection inclined ejector demolding mechanism

Abstract

The utility model relates to the technical field of inclined top demolding, and specifically is secondary ejection inclined top demolding mechanism, including inclined top head, the inclined top head fixed mounting is in the top of inclined top rod, the side of inclined top head is provided with the mounting groove, the mounting groove is used for installing the mounting block installation insertion, the mounting block passes through bolt and is fixedly connected with inclined top head, one end of mounting block and one end of spring are fixedly connected, spring is horizontally equipped with many, the other end of many spring and the side fixed connection of push board, the other side of push board and the one end of sliding block contact. The cooperation of mounting groove and bolt realizes the quick disassembly of spring assembly, and the spring replacement can be completed without disassembling the mould body, and the maintenance downtime is reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of inclined ejector demolding technology, specifically to a secondary ejection inclined ejector demolding mechanism. Background Technology

[0002] Some injection molds use ejector pins to eject the product, and depending on the product's structure, different ejection methods are employed, such as straight ejector pins, angled ejector pins, or a combination of both to better eject the product. Furthermore, some existing special straight ejector pins have a secondary ejection structure, enabling even better product demolding.

[0003] Application number CN202020881157.0 discloses a slanted ejector structure for an automotive mold, including a slanted ejector head, a slanted ejector rod, a slider, and a slanted ejector seat. The slanted ejector head contains a secondary ejection device, which includes an ejector rod, a sliding block, and a spring. The slanted ejector head has a sliding groove and an ejection groove inside. The ejection groove is located above the sliding groove and is connected to it. The ejector rod is located within the ejection groove, with one end extending out of the groove. The sliding block and spring are located within the sliding groove. One end of the sliding block extends to the side of the slanted ejector head, and the spring is located at the other end of the sliding block. A retaining groove is located above the sliding block, and one end of the ejector rod is located within this groove. The side of the ejector rod closest to the spring has a slanted surface, and the retaining groove matches the slanted surface of the ejector rod. This utility model provides a slanted ejector structure for an automotive mold with a secondary ejection structure, which improves the demolding process of injection-molded products.

[0004] However, the sliding block inside the inclined ejector block is limited by a limiting component, which prevents the sliding block from being removed from the inclined ejector block. The spring is prone to permanent deformation and reduced elasticity when it is under compression for a long time, which leads to insufficient ejection force for the secondary ejection. The ejection height of the ejector rod is fixed and cannot meet the demolding force requirements of different products. Therefore, a secondary ejection inclined ejector demolding mechanism is proposed. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a secondary ejection inclined ejection demolding mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is a secondary ejection inclined ejector demolding mechanism, including an inclined ejector head, which is fixedly installed on the top of an inclined ejector rod. An installation groove is opened on one side of the inclined ejector head, which is used for the installation of an installation block. The installation block is fixedly connected to the inclined ejector head by bolts. One end of the installation block is fixedly connected to one end of a spring. Multiple springs are horizontally arranged, and the other end of the multiple springs is fixedly connected to one side of a push plate. The other side of the push plate is in contact with one end of a sliding block.

[0007] By adopting the above technical solution, the spring assembly can be quickly disassembled through the cooperation of the mounting slot and bolts. The spring can be replaced without disassembling the mold body, which significantly reduces maintenance downtime. At the same time, the mechanical limit design of the pin and multi-position slot allows the maximum stroke of the sliding block to be precisely adjusted by selecting different slots, thereby flexibly controlling the ejection height of the ejector rod to meet the demolding stroke and demolding force requirements of different products.

[0008] Specifically, both sides of the sliding block are fixedly connected to slide bars, and both the slide bars and the sliding block are slidably installed inside the inclined top.

[0009] By adopting the above technical solution, the guide groove of the slide bar and the inner wall of the inclined ejector head are precisely matched, so that the sliding block maintains a linear trajectory when moving horizontally. When the inclined ejector head rises and disengages from the back mold through groove, the slide bar bears the lateral thrust of the spring, preventing the sliding block from tilting due to uneven force, and ensuring the vertical ejection accuracy of the ejector rod.

[0010] Specifically, the top end of the sliding block is fixedly connected to the bottom end of the limiting block, the limiting block is slidably installed in the limiting groove, and a slot is provided on one side of the inclined top. There are multiple slots, and the multiple slots are connected to the inside of the limiting groove. The multiple slots are used for the insertion of the pin.

[0011] By adopting the above technical solution, the pin is inserted into the limiting groove through different slots to form a mechanical limiting point: when the limiting block moves with the sliding block to contact the pin, it stops sliding. By selecting the installation position of different slots, the maximum stroke of the sliding block can be precisely adjusted, thereby controlling the ejection height of the ejector rod and adapting to the demolding stroke requirements of different products.

[0012] Specifically, the top of the sliding block is provided with a slot for the bottom end of the ejector rod to be inserted into, and the ejector rod is movably inserted into the top of the inclined head.

[0013] By adopting the above technical solution, in the initial state, the bottom end of the ejector rod is embedded in the slot, so that the ejector rod is in the storage position; when the sliding block moves laterally, the side wall of the slot pushes the ejector rod to rise along its axis, realizing the linear motion conversion of the secondary ejection, and ensuring that the ejection force acts perpendicularly on the product.

[0014] Specifically, an extension block is fixedly connected to the top of the sliding block, and the extension block is slidably installed inside the slide groove. The inclined surface of the extension block is adapted to the bottom end face of the ejector rod.

[0015] By adopting the above technical solution, the inclined surface of the extension block and the bottom of the ejector rod form a wedge mechanism: when the sliding block moves laterally, the extension block converts the horizontal displacement into the vertical displacement of the ejector rod through the inclined surface.

[0016] The beneficial effects of this utility model are:

[0017] The secondary ejection inclined ejection demolding mechanism of this utility model enables quick disassembly of the spring assembly through the cooperation of the mounting slot and bolts. Spring replacement can be completed without disassembling the mold body, significantly reducing maintenance downtime. At the same time, the mechanical limit design of the pin and multi-position slot allows for precise adjustment of the maximum stroke of the sliding block by selecting different slots, thereby flexibly controlling the ejection height of the ejector rod to meet the demolding stroke and demolding force requirements of different products. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the ejector rod structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0022] In the diagram: 1. Limiting groove; 2. Pin; 3. Limiting block; 4. Angled top; 5. Slot; 6. Ejector rod; 7. Extension block; 8. Slide groove; 9. Mounting block; 10. Bolt; 11. Spring; 12. Push plate; 13. Angled top rod; 14. Slide bar; 15. Sliding block; 16. Mounting groove; 17. Slot. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As one embodiment of this utility model, such as Figures 1-3 As shown, the secondary ejection inclined ejector demolding mechanism of this utility model includes an inclined ejector head 4, which is fixedly installed on the top of the inclined ejector rod 13. An installation groove 16 is provided on one side of the inclined ejector head 4. The installation groove 16 is used for the installation of the installation block 9. The installation block 9 is fixedly connected to the inclined ejector head 4 by bolts 10. One end of the installation block 9 is fixedly connected to one end of a spring 11. Multiple springs 11 are horizontally arranged. The other end of the multiple springs 11 is fixedly connected to one side of a push plate 12. The other side of the push plate 12 is in contact with one end of a sliding block 15.

[0025] In use, the mounting slot 16 and bolt 10 form a quick-release structure: when the spring 11 needs to be replaced, simply loosen the bolt 10 and pull out the mounting block 9 horizontally to remove the entire spring 11 assembly from the side of the inclined top head 4. Multiple springs 11 transmit elastic force evenly through the push plate 12 to ensure that the sliding block 15 is under balanced force when it resets, avoiding one-sided jamming.

[0026] The present invention also includes that both sides of the sliding block 15 are fixedly connected with sliding strips 14, and both the sliding strips 14 and the sliding block 15 are slidably installed inside the inclined head 4.

[0027] During use, the slide bar 14 is precisely matched with the guide groove on the inner wall of the inclined ejector head 4, so that the sliding block 15 maintains a linear trajectory when moving horizontally. When the inclined ejector head 4 rises and disengages from the rear mold through groove, the slide bar 14 bears the lateral thrust of the spring 11, preventing the sliding block 15 from tilting due to uneven force, and ensuring the vertical ejection accuracy of the ejector rod 6.

[0028] The present invention also includes that the top end of the sliding block 15 is fixedly connected to the bottom end of the limiting block 3, the limiting block 3 is slidably installed in the limiting groove 1, and a slot 17 is provided on one side of the inclined top head 4. The slot 17 is provided in multiple places, and the multiple slots 17 are connected to the interior of the limiting groove 1. The multiple slots 17 are used for the insertion of the pin 2.

[0029] In use, the pin 2 is inserted into the limiting groove 1 through different slots 17 to form a mechanical limiting point: when the limiting block 3 moves with the sliding block 15 to contact the pin 2, it stops sliding. By selecting different installation positions of the slots 17, the maximum stroke of the sliding block 15 can be precisely adjusted, thereby controlling the ejection height of the ejector rod 6 to adapt to the demolding stroke requirements of different products.

[0030] It should be noted that the inner side of the limiting groove 1 has a groove for one end of the pin 2 to be engaged. There are multiple grooves that correspond one-to-one with the slot 17, so that the pin 2 can be inserted horizontally into the limiting groove 1 and the movement of the limiting block 3 can be successfully restricted.

[0031] The present invention also includes a slot 5 at the top of the sliding block 15, the slot 5 being used for the bottom end of the ejector rod 6 to be inserted into, and the ejector rod 6 being movably inserted into the top of the inclined head 4.

[0032] In use, the bottom end of the ejector rod 6 is embedded in the slot 5 in the initial state, so that the ejector rod 6 is in the storage position; when the sliding block 15 moves laterally, the side wall of the slot 5 pushes the ejector rod 6 to rise along its axis, realizing the linear motion conversion of the secondary ejection, ensuring that the ejection force acts vertically on the product.

[0033] The present invention also includes an extension block 7 fixedly connected to the top of the sliding block 15, the extension block 7 being slidably installed inside the slide groove 8, and the inclined surface of the extension block 7 being adapted to the bottom end surface of the ejector rod 6.

[0034] When in use, the inclined surface of the extension block 7 and the bottom of the ejector rod 6 form a wedge mechanism: when the sliding block 15 moves laterally, the extension block 7 converts the horizontal displacement into the vertical displacement of the ejector rod 6 through the inclined surface.

[0035] In use, after the mold injection is completed, during the ejection process, the inclined ejector rod 13 pushes the inclined ejector head 4 upward within the through groove of the rear mold assembly, achieving one-time ejection of the product. When the inclined ejector head 4 rises to the outside of the through groove, the sliding block 15 is not squeezed by the inner wall of the through groove. Under the elastic force of the spring 11, the sliding block 15 slides away from the spring 11. Since one end of the ejector rod 6 is located in the slot 5 of the sliding block 15, and the slot 5 and the extension block 7 are adapted to the inclined surface of the ejector rod 6, when the sliding block 15 slides to one side, it drives the slot 5 and the extension block 7 to move. Through the cooperation of the slot 5 and the extension block 7 with the ejector rod 6, the ejector rod 6 is pushed upward, causing it to protrude beyond the inclined ejector head. 4. This allows for secondary ejection of the product, enabling better demolding. When the ejection height of the ejector rod 6 needs adjustment, the pin 2 can be inserted from the slot 17 into the limiting groove 1, thereby limiting the movement distance of the limiting block 3 and restricting the movement of the sliding block 15. This allows for adjustment of the ejection height of the ejector rod 6 to meet the ejection requirements of different product demolding forces. When the spring 11 needs to be disassembled and replaced, simply unscrew the bolt 10, pull the mounting block 9 horizontally out of the mounting groove 16, and then pull the spring 11 out of the inside of the inclined ejector head 4. Then, insert the new push plate 12 and the spring 11 back into the mounting groove 16, and finally tighten the bolt 10 to fix the mounting block 9.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A secondary ejection angled ejector demolding mechanism, comprising an angled ejector head (4), characterized in that, The inclined head (4) is fixedly installed on the top of the inclined rod (13). An installation groove (16) is provided on one side of the inclined head (4). The installation groove (16) is used for the installation block (9) to be inserted. The installation block (9) is fixedly connected to the inclined head (4) by bolts (10). One end of the installation block (9) is fixedly connected to one end of the spring (11). Multiple springs (11) are horizontally provided. The other end of the multiple springs (11) is fixedly connected to one side of the push plate (12). The other side of the push plate (12) is in contact with one end of the sliding block (15).

2. The secondary ejection inclined ejection demolding mechanism according to claim 1, characterized in that, Both sides of the sliding block (15) are fixedly connected with slide bars (14), and both the slide bars (14) and the sliding block (15) are slidably installed inside the inclined head (4).

3. The secondary ejection inclined ejection demolding mechanism according to claim 1, characterized in that, The top of the sliding block (15) is fixedly connected to the bottom of the limiting block (3). The limiting block (3) is slidably installed in the limiting groove (1). A slot (17) is provided on one side of the inclined head (4). There are multiple slots (17). The multiple slots (17) are connected to the inside of the limiting groove (1). The multiple slots (17) are used for the insertion of the pin (2).

4. The secondary ejection inclined ejection demolding mechanism according to claim 1, characterized in that, The top of the sliding block (15) is provided with a slot (5), which is used for the bottom end of the ejector rod (6) to be inserted into the slot. The ejector rod (6) is movably inserted into the top of the inclined head (4).

5. The secondary ejection inclined ejection demolding mechanism according to claim 1, characterized in that, The top of the sliding block (15) is fixedly connected to an extension block (7), which is slidably installed inside the groove (8). The inclined surface of the extension block (7) is adapted to the bottom end face of the ejector rod (6).

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