Injection mold facilitating part taking

Abstract

This utility model relates to the field of injection mold technology and discloses an injection mold for easy part removal, including a fixed mold, a moving mold, and a mold fixing seat. The bottom of the fixed mold is provided with a positioning base, and the mold fixing seat is provided with a positioning groove that fits and is embedded in the positioning base. The fixed mold is accurately positioned on the mold fixing seat through the cooperation of the positioning base and the positioning groove. The advantages compared with the prior art are: the moving mold can be lifted and moved laterally in both directions through the drive mechanism. Combined with the guiding effect of the L-shaped slide and the positioning slider, the moving mold can first rise away from the fixed mold after the mold is opened, and then shift laterally, which greatly expands the part removal space; the drive mechanism adopts a manual rotary wheel with screw and drive block structure, which does not require a complex hydraulic or pneumatic system, is low in cost and easy to operate. At the same time, the length of the L-shaped slide limits the movement stroke of the moving mold, avoiding the risk of overtravel, adapting to the part removal needs of different specifications of products, and improving the versatility of the mold.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that facilitates part removal. Background Technology

[0002] In the injection molding process, the efficiency and ease of part removal after mold opening directly affect the production schedule, while the mold positioning accuracy also affects the product molding quality and part removal safety. Existing injection molds typically suffer from problems such as limited part removal space, cumbersome moving mold adjustment, and insufficient positioning accuracy.

[0003] In traditional molds, after mold opening, the moving mold can only achieve lifting and separation in one direction, and the lateral distance between it and the fixed mold is small. When removing parts, it is easy to interfere with mold components, resulting in difficulty in removing parts or damage to the product. The movement of the moving mold often relies on complex hydraulic or pneumatic systems, which are not only costly but also have poor adjustment flexibility, making it difficult to accurately control the movement stroke according to the removal requirements. In addition, the positioning structure between the fixed mold and the mold base, and between the moving mold and the side plate is imperfect, which can easily cause the parts to shift when the mold is closed, affecting the molding accuracy. At the same time, the position of the moving mold is unstable after mold opening, further increasing the difficulty of removing parts, making it difficult to meet the needs of efficient and stable injection molding production. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing injection mold has limited space for part removal, cumbersome adjustment of moving mold movement, and insufficient positioning accuracy, which leads to difficulties in part removal. The present invention realizes that the moving mold can be raised and lowered and moved laterally in both directions to expand the part removal space, improve the positioning accuracy of each component of the mold, simplify the adjustment operation of the moving mold, and thus improve part removal efficiency and production stability.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] An injection mold for easy part removal includes a fixed mold, a moving mold, and a mold fixing seat. The fixed mold has a positioning base at its bottom, and the mold fixing seat has a positioning groove that fits into the positioning base. The fixed mold is accurately positioned on the mold fixing seat through the cooperation of the positioning base and the positioning groove. The fixed mold has a guide sleeve at its top, and the mold fixing seat also has side plates located on the front and rear sides of the fixed mold. The moving mold is slidably arranged between the two side plates and located on the upper side of the fixed mold. The bottom of the moving mold has a guide post that slides with the guide sleeve. The guiding effect of the guide post and the guide sleeve ensures the alignment accuracy between the moving mold and the fixed mold when the moving mold is raised or lowered. The side plates have a driving mechanism that can simultaneously drive the moving mold to move up and down and laterally, increasing the longitudinal distance and lateral offset distance between the moving mold and the fixed mold, providing sufficient space for part removal.

[0007] As an improvement, cavity inserts are embedded on the opposite sides of both the fixed mold and the moving mold. Positioning steps are provided on the outer side of the cavity inserts. Cavity grooves that are adapted to the positioning steps are opened on the fixed mold. The positioning steps are embedded in the cavity grooves to achieve precise fixation of the cavity inserts, and at the same time facilitate the disassembly and replacement of the cavity inserts to adapt to the injection molding requirements of products of different specifications.

[0008] As an improvement, the end of the moving mold near the side plate is provided with a positioning slider. An L-shaped groove is reserved on the side plate to slide and connect with the positioning slider. When the positioning slider slides along the L-shaped groove, it can drive the moving mold to first complete the lifting and lowering movement, and then complete the lateral movement, so as to ensure that the moving mold movement trajectory is stable and controllable.

[0009] As an improvement, the vertical section length of the L-shaped chute is equal to the lifting length of the moving mold, and the horizontal section length is equal to the lateral movement length of the moving mold. Through the precise design of the chute length, the maximum lifting height and maximum lateral movement distance of the moving mold are limited, thus avoiding component collision or positioning failure caused by the moving mold moving beyond its travel range.

[0010] As an improvement, the driving mechanism includes a movable plate that is slidably and vertically disposed between the side plates. A screw is rotatably mounted on the movable plate, one end of which passes through a drive block mounted on the top of the moving mold and is threadedly connected to the drive block. The other end is fixedly connected to a manual rotating wheel. A rotating seat is provided on the mold fixing base, and a screw is rotatably mounted on the rotating seat. The other end of the screw passes through a drive block mounted on the movable plate and is threadedly connected to the drive block. A manual rotating wheel is fixedly connected to the top end of the screw. By rotating the manual rotating wheel, the movable plate can be driven to rise and fall along the side plates, thereby driving the moving mold to rise and fall synchronously. By rotating the manual rotating wheel, the moving mold can be driven to slide laterally along the movable plate, realizing bidirectional movement adjustment of the moving mold. The operation is convenient and the adjustment accuracy is high.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. This utility model realizes the lifting and lateral bidirectional movement of the moving mold through the driving mechanism. Combined with the guiding effect of the L-shaped slide and the positioning slider, the moving mold can first rise away from the fixed mold after the mold is opened, and then shift laterally, which greatly expands the part removal space, avoids interference with mold components when removing parts, solves the problem of limited part removal space in traditional molds, and improves part removal efficiency and safety.

[0013] 2. This utility model ensures accuracy through a multi-positioning structure: the fixed mold is positioned by the positioning base and the positioning groove of the mold fixing seat, the moving mold is positioned by the guide post and the guide sleeve of the fixed mold, and the moving mold and the side plate are positioned by the positioning slider and the L-shaped slide groove. The multi-positioning works together to effectively avoid component displacement during mold closing and mold opening, and improve the product forming accuracy and mold stability.

[0014] 3. The drive mechanism of this utility model adopts a manual rotary wheel with screw and drive block structure, which does not require a complex hydraulic or pneumatic system, has low cost and is easy to operate. At the same time, the length of the L-shaped slide groove limits the movement stroke of the moving mold, avoids the risk of overtravel, adapts to the part removal needs of different specifications of products, and improves the versatility of the mold. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of this utility model.

[0016] Figure 2 This is an exploded schematic diagram of this utility model.

[0017] Figure 3 This is a utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0018] Figure 4 This is a cross-sectional view of the present invention.

[0019] As shown in the figure: 1. Fixed mold; 2. Moving mold; 3. Mold fixing seat; 4. Positioning base; 5. Guide sleeve; 6. Side plate; 7. Guide pillar; 8. Drive mechanism; 81. Moving plate; 82. Screw one; 83. Drive block one; 84. Manual rotary wheel one; 85. Rotary seat; 86. Screw two; 87. Drive block two; 88. Manual rotary wheel two; 9. Cavity insert; 10. Positioning step; 11. Cavity groove; 12. Positioning slider; 13. L-shaped slide. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Please see the appendix Figure 1 Appendix Figure 2 As shown, an injection mold for easy part removal includes a fixed mold 1, a moving mold 2, and a mold fixing base 3. The mold fixing base 3 provides the installation foundation for the overall structure. The positioning base 4 at the bottom of the fixed mold 1 is adapted to be embedded in the positioning groove of the mold fixing base 3, so as to achieve precise fixation of the fixed mold 1 on the mold fixing base 3 and avoid displacement of the fixed mold 1 during injection molding. The side plates 6 on the front and rear sides of the fixed mold 1 are fixed to the mold fixing base 3 by bolts. The moving mold 2, which is slidably arranged between the two side plates 6, is located on the upper side of the fixed mold 1. The guide post 7 at the bottom of the moving mold 2 is slidably engaged with the guide sleeve 5 at the top of the fixed mold 1 to ensure that the moving mold 2 always maintains precise alignment with the fixed mold 1 when it is raised and lowered, and avoids mold closing deviation.

[0022] A positioning slider 12 is fixed at the end of the moving mold 2 near the side plate 6. The L-shaped groove 13 reserved on the side plate 6 is slidably connected to the positioning slider 12. The vertical section of the L-shaped groove 13 limits the lifting trajectory of the moving mold 2, and the horizontal section limits the lateral movement trajectory of the moving mold 2. The length of the vertical section is equal to the height that the moving mold 2 needs to be lifted (to ensure that the moving mold 2 is completely separated from the fixed mold 1 after it is lifted), and the length of the horizontal section is equal to the distance that the moving mold 2 needs to be laterally moved (to ensure that sufficient space is reserved for picking up the part after the moving mold 2 is laterally moved). Through the cooperation of the positioning slider 12 and the L-shaped groove 13, the movement of the moving mold 2 is stable and the stroke is controllable.

[0023] See appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, the drive mechanism 8 enables bidirectional movement of the moving mold 2: the moving plate 81 of the drive mechanism 8 is slidably connected to the side plate 6 via a slider structure (not shown in the figure), and can be vertically raised and lowered along the side plate 6; a screw 82 is rotatably mounted on the moving plate 81 via a bearing, one end of the screw 82 passes through the drive block 83 at the top of the moving mold 2 (the drive block 83 is integrally formed with the moving mold 2 or fixed with bolts), and the two are connected by a thread; the other end of the screw 82 extends out of the outside of the moving plate and is fixed with a manual rotating wheel 84. When the manual rotating wheel 84 is rotated, the screw 82 rotates and drives the drive block 84 through the threaded transmission. 3. The lateral movement causes the moving mold 2 to slide laterally along the moving plate 81. A rotating seat 85 is welded and fixed on the mold fixing seat 3. A screw 86 is rotatably mounted on the rotating seat 85 through a bearing. The top of the screw 86 passes through the drive block 87 on the moving plate 81 (the drive block 87 is integrally formed with the moving plate 81 or fixed with bolts). The two are connected by threads. A manual rotating wheel 88 is fixed to the top of the screw 86. When the manual rotating wheel 88 is rotated, the screw 86 rotates and drives the drive block 87 to rise and fall vertically through the thread transmission, thereby causing the moving plate 81 and the moving mold 2 to rise and fall synchronously along the side plate 6.

[0024] Both the fixed mold 1 and the moving mold 2 have insert mounting grooves on their opposite sides. The cavity insert 9 is embedded in the insert mounting groove, and the positioning step 10 on the outer side of the cavity insert 9 is adapted to be embedded in the cavity groove 11 of the fixed mold 1 (or the moving mold 2). The cavity insert 9 is accurately positioned by the cooperation between the positioning step 10 and the cavity groove 11. At the same time, it is convenient to replace different cavity inserts 9 according to product specifications, thereby improving the versatility of the mold.

[0025] In specific implementation of this utility model: during the mold closing and injection molding stage: rotating the manual rotary wheel 88 drives the screw 86 to rotate, and the drive block 87 drives the moving plate 81 and the moving mold 2 to descend. The guide post 7 at the bottom of the moving mold 2 slides into the guide sleeve 5 of the fixed mold 1 until the moving mold 2 and the fixed mold 1 are tightly fitted (mold closing state). At this time, the cavity insert 9 forms a complete injection molding cavity. Molten raw materials are injected into the cavity through the material delivery pipe to complete the injection molding.

[0026] During the mold opening and moving stage: After the product cools and solidifies, the manual rotary wheel 88 is rotated in the opposite direction, and the screw 86 drives the moving plate 81 and the moving mold 2 to rise. The guide post 7 at the bottom of the moving mold 2 is dislodged from the guide sleeve 5, and the positioning slider 12 slides along the vertical section of the L-shaped slide groove 13 until the moving mold 2 rises to its maximum height (completely separated from the fixed mold 1). Then, the manual rotary wheel 84 is rotated, and the screw 82 drives the drive block 83 and the moving mold 2 to move laterally. The positioning slider 12 slides along the horizontal section of the L-shaped slide groove 13 until the moving mold 2 moves laterally to its maximum distance. At this time, sufficient space for part removal is formed between the moving mold 2 and the fixed mold 1.

[0027] During the part removal and resetting stage: the operator removes the molded product from the cavity insert 9 of the fixed mold 1; after the part removal is completed, the manual rotary wheel 84 is rotated in the opposite direction to drive the moving mold 2 to reset laterally to the initial position; then the manual rotary wheel 88 is rotated in the opposite direction to drive the moving mold 2 to descend and reset to the mold closing state, in preparation for the next injection molding cycle.

[0028] If product specifications need to be changed, simply disassemble the cavity insert 9 (separate the positioning step 10 and the cavity groove 11), replace it with a suitable cavity insert 9, and reposition it. There is no need to adjust other core components of the mold. It is easy to operate and highly adaptable.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An injection mold for easy part removal, comprising a fixed mold (1), a moving mold (2), and a mold fixing base (3), characterized in that: The fixed mold (1) is provided with a positioning base (4) at the bottom and a guide sleeve (5) at the top. The mold fixing seat (3) is provided with a positioning groove for embedding the positioning base (4). The fixed mold (1) is provided with side plates (6) fixed on the mold fixing seat (3) on both the front and rear sides. The moving mold (2) located on the upper side of the fixed mold (1) is slidably provided between the side plates (6). The bottom of the moving mold (2) is provided with a guide post (7) that slides with the guide sleeve (5). The side plate (6) is provided with a drive mechanism (8) that drives the moving mold (2) to move up and down and laterally.

2. The injection mold for easy part removal according to claim 1, characterized in that: Both the fixed mold (1) and the moving mold (2) have cavity inserts (9) embedded on their opposite sides. A positioning step (10) is set on the outer side of the cavity insert (9). The positioning step (10) is positioned in conjunction with the cavity groove (11) of the fixed mold (1).

3. The injection mold for easy part removal according to claim 1, characterized in that: The moving mold (2) is provided with a positioning slider (12) at the end near the side plate (6), and the side plate (6) has an L-shaped groove (13) that is slidably connected to the positioning slider (12).

4. The injection mold for easy part removal according to claim 3, characterized in that: The vertical section of the L-shaped chute (13) is equal to the lifting length of the moving mold (2), and the horizontal section is equal to the lateral movement length of the moving mold (2).

5. The injection mold for easy part removal according to claim 1, characterized in that: The drive mechanism (8) includes a movable plate (81) that is slidably mounted between the side plates (6). A screw (82) is rotatably mounted on the movable plate (81). One end of the screw (82) passes through a drive block (83) mounted on the top of the moving mold (2) and is threadedly connected to the drive block (83). The other end is connected to a manual rotating wheel (84). A rotating seat (85) is mounted on the mold fixing seat (3). A screw (86) is rotatably mounted on the rotating seat (85). The other end of the screw (86) passes through a drive block (87) mounted on the movable plate (81) and is threadedly connected to the drive block (87). The top end is connected to a manual rotating wheel (88).

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