An injection mold

Abstract

The application relates to the technical field of injection molds, and discloses an injection mold which comprises a lower mold, the top of the lower mold is provided with an upper mold, the bottom of the upper mold is attached to the top of the lower mold, a cavity one is arranged at the bottom of the upper mold, an up-down penetrating injection hole is arranged at the center of the inner upper surface of the cavity one, a cavity two is arranged at the center of the top of the lower mold, the cavity two corresponds to the cavity one, guide rods are fixedly connected to the left and right sides of the bottom of the upper mold, guide holes are arranged at the left and right sides of the top of the lower mold, and the guide rods are inserted into the guide holes; when the injection mold is used, the bottom end of the upper mold is attached to the top end of the lower mold through the pressing of the injection head of an external injection machine, the guide rods are inserted into the guide holes during the attaching process, the upper mold and the lower mold are accurately positioned, and the positioning stability is good.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and more specifically to an injection mold. Background Technology

[0002] Injection molds generally refer to injection molding. Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are high production speed and efficiency, automated operation, a wide variety of colors and shapes, shapes ranging from simple to complex, sizes ranging from large to small, precise product dimensions, easy product updates and replacements, and the ability to produce complex-shaped parts. Injection molding is suitable for mass production and molding processing fields such as complex-shaped products.

[0003] However, most existing injection molds are cumbersome to install and fix, and have poor positioning stability, making it impossible for the upper and lower molds to lock together when the injection molding machine presses down the injection material, which affects the quality of injection molding. At the same time, most existing injection molds are inconvenient to assist in demolding between the upper and lower molds, making demolding after injection molding difficult and inconvenient to use. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide an injection mold that can solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, an injection mold includes a lower mold, an upper mold disposed on the top of the lower mold, and the bottom of the upper mold fitting against the top of the lower mold. The bottom of the upper mold has a first cavity, and a through-hole is formed at the center of the upper surface of the first cavity. The top center of the lower mold has a second cavity corresponding to the first cavity. Guide rods are fixedly connected to the left and right sides of the bottom of the upper mold, and guide holes are formed on the left and right sides of the top of the lower mold, with the guide rods inserted into the guide holes. A fixing plate is fixedly connected to the center of both the left and right sides of the mold. The fixing plate has a through-type mounting groove inside, and the upper surface of the mounting groove communicates with the outside. An inner groove II is formed on the lower surface of the guide hole, and the side of the inner groove II away from the center of the lower mold communicates with the inside of the mounting groove. Mounting holes are formed at the center of both the front and rear surfaces of the mounting groove. A rotating rod is installed inside the mounting groove, and a limiting groove is formed at the center of both the front and rear ends of the rotating rod. A mounting assembly is installed between the limiting groove and the mounting hole, and the rotating rod is connected to the mounting plate via the mounting assembly. The upper mold has a slotted connection. A locking rod is fixedly connected to the top of the rotating rod one. A through-hole is formed at the top of the locking rod, and a locking block is rotatably connected to the rotating rod two inside the through-hole. Slots are formed at the center of both sides of the upper mold, and the locking block is engaged in the slot on the side closer to the center of the upper mold. A swing rod is fixedly connected to the side of the rotating rod one near the center of the lower mold, and the top of the swing rod, near the center of the lower mold, is located inside the inner slot two and fits against the bottom of the guide rod. An insert is formed at the bottom of the swing rod inside the mounting slot. Hole 1: A pressing rod is rotatably connected inside the insertion hole 1 via a rotating rod 3. Insertion hole 2: A sleeve rod is rotatably connected inside the insertion hole 2 via a rotating rod 4. A sliding groove is formed inside the sleeve rod, and the upper surface of the sliding groove communicates with the interior of the mounting groove. A slider is slidably connected inside the sliding groove. A spring 2 is provided between the bottom of the slider and the lower surface of the sliding groove, with the top and bottom ends of the spring 2 respectively fitting against the bottom of the slider and the lower surface of the sliding groove. The bottom end of the pressing rod is inserted into the sliding groove and fits against the top of the slider.

[0006] Furthermore, the mounting assembly includes a mounting rod inserted into the limiting groove. The mounting rod has multiple evenly distributed inner grooves within the limiting groove. The side of each inner groove furthest from the center of the mounting rod communicates with the inside of the limiting groove. A continuous groove is formed around the inner wall of the limiting groove. A sliding plate is slidably connected to the inner groove. A connecting block is fixedly connected to the side of the sliding plate furthest from the center of the mounting rod. An mounting block is fixedly connected to the side of the connecting block furthest from the center of the mounting rod, and the mounting block engages with and is movably connected to the groove. A spring is fixedly connected between the side of the sliding plate near the center of the mounting rod and the side of the inner groove near the center of the mounting rod. The end of the mounting rod furthest from the center of the mounting groove passes through the mounting hole.

[0007] Furthermore, one end of the mounting rod, located away from the center of the mounting groove, passes through the mounting hole, and a handle is fixedly connected to the center of the mounting rod.

[0008] Furthermore, the card block is arranged in an arc shape on one side near the center of the upper mold and inside the card slot.

[0009] Furthermore, the top end of the extrusion rod and the bottom end of the sleeve rod are both designed in an arc shape.

[0010] Furthermore, the injection hole is adapted to the injection head of the external injection molding machine.

[0011] Furthermore, the mounting block is configured in a semi-circular shape.

[0012] The beneficial effects of the injection mold of the present invention are as follows:

[0013] When in use, the injection mold is pushed down by the injection head of the external injection molding machine to make the bottom end of the upper mold fit with the top end of the lower mold. During the fitting process, the guide rod is inserted into the guide hole to make the upper mold and the lower mold accurately positioned and make the positioning stable.

[0014] When in use, the injection mold is pressed by the swing rod, which drives the locking rod and the locking block to engage in the slot, thus fixing the upper mold and the lower mold together. It can also achieve self-locking between the upper mold and the lower mold, making the injection mold easy to use and with good performance.

[0015] When using this injection mold, after injection molding, the guide rod can be lifted by rotating the clamping rod to assist in demolding. This makes demolding between the upper and lower molds relatively simple and makes the injection mold highly practical. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a partial cross-sectional view of an injection mold according to the present invention;

[0018] Figure 2 This invention relates to an injection mold. Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This invention relates to an injection mold. Figure 1 Enlarged structural diagram at point B;

[0020] Figure 4 This is a partial enlarged side section diagram of the fixing plate of an injection mold according to the present invention.

[0021] In the diagram: 1. Lower mold; 2. Fixing plate; 3. Mounting groove; 4. Rotating rod one; 5. Mounting assembly; 501. Mounting rod; 502. Inner groove one; 503. Spring one; 504. Sliding plate; 505. Connecting block; 506. Groove; 507. Mounting block; 508. Handle rod; 6. Locking rod; 7. Through hole; 8. Rotating rod two; 9. Locking block; 10. Upper mold; 11. Mounting hole; 12. Guide rod; 13. Guide hole; 14. Cavity one; 15. Injection hole; 16. Cavity two; 17. Locking groove; 18. Inner groove two; 19. Swing rod; 20. Rotating rod three; 21. Insertion hole one; 22. Extrusion rod; 23. Slider; 24. Slide groove; 25. Sleeve rod; 26. Rotating rod four; 27. Insertion hole two; 28. Spring two; 29. ​​Limiting groove. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0023] like Figure 1-4As shown, according to one aspect of the present invention, an injection mold is provided, including a lower mold 1, an upper mold 10 is disposed on the top of the lower mold 1, and the bottom of the upper mold 10 is fitted to the top of the lower mold 1. A cavity 14 is formed at the bottom of the upper mold 10, and a vertically penetrating injection hole 15 is formed at the center of the upper surface inside the cavity 14. A second cavity 16 is formed at the center of the top of the lower mold 1, and the second cavity 16 corresponds to the first cavity 14. Guide rods 12 are fixedly connected to the left and right sides of the bottom of the upper mold 10. Guide holes 13 are formed on the left and right sides of the top of the lower mold 1, and the guide rods 12 are inserted into the guide holes 13. Fixing plates 2 are fixedly connected to the center of the left and right sides of the lower mold 1, and the fixing plates 2 have horizontally penetrating mounting grooves 3 inside. The upper surface of the mounting groove 3 is connected to the outside. The lower surface of the guide hole 13 has an inner groove 18, and the side of the inner groove 18 away from the center of the lower mold 1 is connected to the inside of the mounting groove 3. The center of the front and rear surfaces of the mounting groove 3 has a mounting hole 11. A rotating rod 4 is installed inside the mounting groove 3. The center of the front and rear ends of the rotating rod 4 has a limit groove 29. An installation component 5 is installed between the inside of the limit groove 29 and the inside of the mounting hole 11. The rotating rod 4 is movably connected to the mounting groove 3 through the installation component 5. A locking rod 6 is fixedly connected to the top of the rotating rod 4. A through hole 7 is opened on the upper part of the locking rod 6. A locking block 9 is rotatably connected to the through hole 7 through the rotating rod 28. The center of the left and right sides of the upper mold 10 Each part is provided with a slot 17, and the side of the locking block 9 near the center of the upper mold 10 is locked into the slot 17. The side of the rotating rod 1 4 near the center of the lower mold 1 is fixedly connected to the swing rod 19, and the top of the swing rod 19 near the center of the lower mold 1 is located inside the inner groove 2 18 and is in contact with the bottom end of the guide rod 12. The bottom of the swing rod 19 is located inside the mounting groove 3 and has an insertion hole 21. The insertion hole 21 is rotatably connected to the extrusion rod 22 through the rotating rod 3 20. The center of the lower surface of the mounting groove 3 has an insertion hole 27. The insertion hole 27 is rotatably connected to the sleeve rod 25 through the rotating rod 4 26. The sleeve rod 25 has a sliding groove 24 inside, and the upper surface of the sliding groove 24 is connected to the inside of the mounting groove 3. A slider 23 is slidably connected to the slide. A spring 28 is provided between the bottom of the slider 23 and the lower inner surface of the slide groove 24. The top and bottom ends of the spring 28 are respectively in contact with the bottom of the slider 23 and the lower inner surface of the slide groove 24. The bottom end of the extrusion rod 22 is inserted into the slide groove 24 and is in contact with the top of the slider 23. During operation, the injection head of the external injection molding machine is first inserted into the injection hole 15 and presses down to push the bottom end of the upper mold 10 to be in contact with the top end of the lower mold 1. During the contact process, the guide rod 12 is inserted into the guide hole 13 to ensure accurate positioning between the upper mold 10 and the lower mold 1 and to ensure good positioning stability. Then, after the guide rod 12 is inserted into the guide hole 13, it extrudes the swing rod 19 inside the inner groove 28.Furthermore, after the rocker arm 19 is compressed, it rotates through the rotation of the rotating rod 4. Following this rotation, the rocker arm 19 drives the rotating extrusion rod 22 to rotate and extrude the slider 23. The slider 23, after being extruded, moves the extrusion spring 28 within the groove 24. During the extrusion process, the sleeve rod 25, through its rotational connection with the insertion hole 27, adapts to the rotation of the extrusion rod 22. Then, the rotating rod 4 drives the locking rod 6 and the locking block 9 to rotate. During the rotation of the locking block 9, through its rotational connection with the through hole 7, it can be inserted into the slot 17, fixing the upper mold 10 and the lower mold 1 together and achieving self-locking between them. This makes the injection mold convenient to use and provides good performance. Finally, during demolding after injection molding, the rotating rod... The movable locking lever 6 causes the locking block 9 to move out of the locking slot 17. After the locking block 9 moves out of the locking slot 17, the rebound force of the previously compressed spring 28 causes the extrusion rod 22 to rotate, which in turn drives the swing rod 19 to rotate via the rotating lever 4. The rotating lever 19 then extrudes the guide rod 12 to assist in the demolding of the upper mold 10. Therefore, when using this injection mold, after injection molding, the swing rod 19 can be rotated by rotating the locking lever 6 to lift the guide rod 12, thus assisting in demolding. This makes the demolding between the upper mold 10 and the lower mold 1 relatively simple and enhances the practicality of the injection mold. Furthermore, the rotating lever 4 can be disassembled via the mounting component 5, and after disassembly, the swing rod 19 and the extrusion rod 22 can be disassembled, facilitating disassembly, maintenance, and replacement, further enhancing its practicality.

[0024] In this embodiment, the mounting assembly 5 includes a mounting rod 501 inserted into the limiting groove 29. The mounting rod 501 has multiple evenly distributed inner grooves 502 inside the limiting groove 29. The side of the inner groove 502 furthest from the center of the mounting rod 501 communicates with the inside of the limiting groove 29. A continuous groove 506 is formed on the inner wall of the limiting groove 29. A sliding plate 504 is slidably connected inside the inner groove 502. The side of the sliding plate 504 furthest from the center of the mounting rod 501 is fixed. A connecting block 505 is connected, and a mounting block 507 is fixedly connected to the side of the connecting block 505 away from the center of the mounting rod 501. The mounting block 507 is snapped into the groove 506 and movably connected to the groove 506. A spring 503 is fixedly connected between the side of the sliding plate 504 near the center of the mounting rod 501 and the side of the inner groove 502 near the center of the mounting rod 501. The end of the mounting rod 501 away from the center of the mounting groove 3 passes through the mounting hole 11. During operation... When disassembling the rotating rod 4 using the mounting assembly 5, first move the mounting rod 501 inserted into the limiting groove 29. As the mounting rod 501 is moved, the mounting block 507 inserted into the groove 506 is compressed. Then, after being compressed, the mounting block 507 retracts through the compression connecting block 505, the sliding plate 504, and the spring 503. Once the mounting block 507 is compressed and retracted, the mounting rod 501 can be moved out of the limiting groove 29. Immediately afterwards, the mounting block 507 limits the rotation rod 4. The position disappears, and the mounting rod 501 is disengaged from the rotating rod 4. Then, when the mounting rod 501 is completely removed from the inside of the limiting groove 29, the rotating rod 4 can be removed from the inside of the mounting groove 3. This makes it easy to disassemble the rotating rod 4. When reinstalling, first insert the rotating rod 4 into the inside of the mounting groove 3 and align it with the mounting hole 11. Then, insert the mounting rod 501 into the inside of the limiting groove 29. When inserting, make the mounting block 507 snap into the inside of the groove 506, which makes it convenient to use.

[0025] In this embodiment, one end of the mounting rod 501, away from the center of the mounting groove 3, passes through the mounting hole 11, and a handle 508 is fixedly connected to the center. During operation, the handle 508 facilitates the movement of the mounting rod 501.

[0026] In this embodiment, the card block 9 is arranged in an arc shape on the side near the center of the upper mold 10 and inside the card slot 17, which facilitates the engagement and disengagement of the card block 9 and the card slot 17 during operation.

[0027] In this embodiment, the top end of the extrusion rod 22 and the bottom end of the sleeve rod 25 are both set in an arc shape, which facilitates the rotation of the extrusion rod 22 and the sleeve rod 25 during operation.

[0028] In this embodiment, the injection hole 15 is adapted to the injection head of an external injection molding machine. During operation, the injection head of the external injection molding machine is installed inside the mounting hole 11 to perform injection molding on the injection mold.

[0029] In this embodiment, the mounting block 507 is configured in a semi-circular shape, which facilitates the installation and removal of the mounting block 507 and the groove 506 during operation, and also facilitates the rotation of the mounting block 507 inside the groove 506.

[0030] The working principle of this device is as follows: During use, the injection head of an external injection molding machine is first inserted into the injection hole 15 and presses down to push the bottom end of the upper mold 10 to fit against the top end of the lower mold 1. During this fitting process, the guide rod 12 is inserted into the guide hole 13 to ensure accurate positioning between the upper mold 10 and the lower mold 1, resulting in good positioning stability. Then, after the guide rod 12 is inserted into the guide hole 13, it presses against the swing rod 19 inside the inner groove 18. After being pressed, the swing rod 19 rotates through the rotating rod 4. The rotating action of the lever 19 causes the rotating rod 19 to rotate, which in turn drives the rotating extrusion rod 22 to rotate and extrude the slider 23. After being extruded, the slider 23 moves inside the groove 24, extruding the extrusion spring 28. During the extrusion process of the extrusion rod 22, the sleeve 25 adapts to the rotation of the extrusion rod 22 through the rotational connection with the insertion hole 27. Then, the rotating rod 4 drives the locking rod 6 and the locking block 9 to rotate. During the rotation of the locking block 9, it can be inserted into the slot 17 through the rotational connection with the through hole 7, so that the upper mold 1 The upper mold 10 and lower mold 1 are fixedly installed together, and the self-locking between the upper mold 10 and lower mold 1 can be achieved. This makes the injection mold easy to use and has a good effect. Then, when demolding after injection molding, rotating the clamping rod 6 causes the clamping block 9 to move out of the clamping groove 17. After the clamping block 9 moves out of the clamping groove 17, the rebound force of the originally compressed spring 28 causes the extrusion rod 22 to rotate, which drives the swing rod 19 to rotate through the action of the rotating rod 4. Then the swing rod 19 rotates and guides the guide rod. The upper mold 10 is extruded to assist in demolding. Therefore, when the injection mold is in use, after injection molding, the guide rod 12 can be lifted by rotating the clamping rod 6 to drive the swing rod 19 to rotate, thereby assisting in demolding. This makes demolding between the upper mold 10 and the lower mold 1 simpler and makes the injection mold more practical. At the same time, the rotating rod 14 can be disassembled through the mounting component 5. After the rotating rod 14 is disassembled, the swing rod 19 and the extrusion rod 22 can be disassembled, which facilitates disassembly, maintenance and replacement, and makes it more practical.

[0031] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. An injection mold, comprising a lower mold (1), characterized in that: The lower mold (1) is provided with an upper mold (10) at its top, and the bottom of the upper mold (10) is in contact with the top of the lower mold (1). The bottom of the upper mold (10) is provided with a first cavity (14), and the center of the upper surface of the first cavity (14) is provided with a through injection hole (15). The center of the top of the lower mold (1) is provided with a second cavity (16), and the second cavity (16) corresponds to the first cavity (14). Guide rods (12) are fixedly connected to the left and right sides of the bottom of the upper mold (10). Guide holes (13) are provided on the left and right sides of the top of the lower mold (1), and the guide rods (12) are inserted into the guide holes (13). A fixing plate (2) is fixedly connected to the center of both the left and right sides. The fixing plate (2) has a through-type mounting groove (3) inside. The upper surface of the mounting groove (3) is connected to the outside. The lower surface of the guide hole (13) has an inner groove (18). The side of the inner groove (18) away from the center of the lower mold (1) is connected to the inside of the mounting groove (3). The center of the front and rear surfaces of the mounting groove (3) has a mounting hole (11). A rotating rod (4) is provided inside the mounting groove (3). The center of the front and rear ends of the rotating rod (4) has a limit groove (29). The inside of the limit groove (29) and the inside of the mounting hole (11) are connected. There is an installation component (5), and the first rotating rod (4) is movably connected to the installation groove (3) through the installation component (5). A locking rod (6) is fixedly connected to the top of the first rotating rod (4). A through hole (7) is opened in the upper part of the locking rod (6). A locking block (9) is rotatably connected to the through hole (7) through the second rotating rod (8). A slot (17) is opened at the center of both the left and right sides of the upper mold (10). The side of the locking block (9) near the center of the upper mold (10) is locked into the slot (17). A swing rod (19) is fixedly connected to the side of the first rotating rod (4) near the center of the lower mold (1). The top of the swing rod (19) is close to the center of the lower mold (1). The side of the lower mold (1) located near the center of the interior is located inside the inner groove (18) and is in contact with the bottom end of the guide rod (12). The bottom of the swing rod (19) is located inside the mounting groove (3) and has a first insertion hole (21). The first insertion hole is rotatably connected to the extrusion rod (22) through the third rotating rod (20). The center of the lower surface of the mounting groove (3) has a second insertion hole (27). The second insertion hole (27) is rotatably connected to the sleeve rod (25) through the fourth rotating rod (26). The sleeve rod (25) has a sliding groove (24) inside, and the upper surface of the sliding groove (24) communicates with the interior of the mounting groove (3). The sliding slider (23) is slidably connected inside the sliding groove (24).A second spring (28) is provided between the bottom of the slider (23) and the lower inner surface of the groove (24), and the top and bottom ends of the second spring (28) are respectively in contact with the bottom of the slider (23) and the lower inner surface of the groove (24). The bottom end of the pressing rod (22) is inserted into the groove (24) and is in contact with the top of the slider (23).

2. The injection mold according to claim 1, characterized in that: The mounting assembly (5) includes a mounting rod (501) inserted into the limiting groove (29). The mounting rod (501) has multiple evenly distributed inner grooves (502) inside the limiting groove (29). One side of each inner groove (502) away from the center of the mounting rod (501) communicates with the inside of the limiting groove (29). A continuous groove (506) is formed on the inner wall of the limiting groove (29). A sliding plate (504) is slidably connected inside each inner groove (502). The side of the sliding plate (504) away from the center of the mounting rod (501) is fixedly connected to… There is a connecting block (505), and a mounting block (507) is fixedly connected to the side of the connecting block (505) away from the center of the mounting rod (501). The mounting block (507) is snapped into the groove (506) and movably connected to the groove (506). A spring (503) is fixedly connected between the side of the sliding plate (504) near the center of the mounting rod (501) and the side of the inner groove (502) near the center of the mounting rod (501). The end of the mounting rod (501) away from the center of the mounting groove (3) passes through the mounting hole (11).

3. The injection mold according to claim 2, characterized in that: One end of the mounting rod (501) away from the center of the mounting groove (3) passes through the mounting hole (11), and a handle (508) is fixedly connected at the center.

4. The injection mold according to claim 1, characterized in that: The card block (9) is located on one side of the inner center of the upper mold (10) and inside the card slot (17) and is set in an arc shape.

5. The injection mold according to claim 1, characterized in that: The top end of the extrusion rod (22) and the bottom end of the sleeve rod (25) are both set in an arc shape.

6. The injection mold according to claim 1, characterized in that: The injection hole (15) is adapted to the injection head of an external injection molding machine.

7. An injection mold according to claim 2, characterized in that: The mounting block (507) is configured in a semi-circular shape.

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