Universal injection mold with replaceable mold core

Abstract

The utility model relates to the technical field of injection molds, and discloses a universal injection mold with replaceable mold cores, which comprises a base, the top of the base is fixedly connected with a lower mold base, the top of the lower mold base is provided with a mounting groove, the interior of the mounting groove is slidably connected with a mold core body, and both sides of the mold core body are provided with movable grooves. Clamping grooves are formed in the two ends of an inner cavity of the movable groove, and adjusting grooves are formed in the two sides of the lower die base. According to the universal injection mold with the replaceable mold core, a worker moves an adjusting block, so that the adjusting block drives a connecting plate, a clamping block is pulled out from the interior of a clamping groove, then a hollowed-out block is pulled outwards, the hollowed-out block leaves from the interior of a movable groove, and therefore fixing of the position of the mold core body is relieved; and the mold core body and the lower mold base are rapidly separated, so that a worker can rapidly replace the mold core body, and the universality and the flexibility of the mold are improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a universal injection mold with interchangeable mold cores. Background Technology

[0002] The mold core, also known as the mold cavity, is the core component of an injection mold. During the injection molding process, the mold core is responsible for forming the internal and external shape of the plastic part.

[0003] The mold cores of existing injection molds are usually mounted on the mold base through complex fixing and connection mechanisms. These fixing methods may include bolting and welding. When it is necessary to replace the mold core, operators often need to spend a lot of time and effort to disassemble and reassemble these fixing mechanisms, which not only increases downtime but also reduces production efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is that in the prior art, the mold core of the injection mold is installed on the mold base through a complex fixing and connecting mechanism, such as bolt connection and welding. When changing the mold core, the operator needs to spend a lot of time and effort to disassemble and assemble these mechanisms, which leads to increased downtime and reduced production efficiency. To this end, we propose a universal injection mold with replaceable mold core.

[0005] To achieve the above objectives, this application adopts the following technical solution: a universal injection mold with interchangeable mold cores, including a base, a lower mold base fixedly connected to the top of the base, an installation groove formed on the top of the lower mold base, a mold core body slidably connected inside the installation groove, movable grooves formed on both sides of the mold core body, retaining grooves formed at both ends of the inner cavity of the movable grooves, adjustment grooves formed on both sides of the lower mold base, a hollow block slidably connected inside the adjustment groove, a connecting groove formed at both ends of the hollow block, a through groove formed at both ends of the hollow block, an adjustment block slidably connected inside the connecting groove, a connecting plate fixedly connected to one end of the adjustment block, and a retaining block fixedly connected to one end of the connecting plate.

[0006] Preferably, a limiting rod is fixedly connected inside the hollow block, and a limiting hole is opened at one end of the connecting plate, with the inside of the limiting hole slidably connected to the surface of the limiting rod.

[0007] Preferably, a return spring is fixedly connected to one end of the connecting plate, and one end of the return spring is fixedly connected to the interior of the hollow block.

[0008] Preferably, the surface of the card block is slidably connected to the interior of the card slot, and the external shape of the card block matches the internal shape of the card slot.

[0009] Preferably, the top and bottom of the inner cavity of the adjustment groove are provided with sliding grooves, and the top and bottom of the hollow block are fixedly connected with sliders.

[0010] Preferably, the bottom of the mounting groove cavity is provided with a square groove, and two telescopic rods are fixedly connected to the bottom of the square groove cavity. A thrust plate is fixedly connected to the top of the telescopic rods, and a thrust spring is fixedly connected to the bottom of the thrust plate. The bottom of the thrust spring is fixedly connected to the bottom of the square groove cavity.

[0011] Preferably, both ends of the mounting groove cavity are provided with cross-shaped positioning grooves, and both ends of the mold core body are fixedly connected with cross-shaped positioning blocks.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the operator moves the adjusting block, which drives the connecting plate to pull the locking block out of the slot. Then, the operator pulls the hollow block outward, causing it to leave the movable slot, thereby releasing the fixation of the mold core body position. Subsequently, by moving the mold core body upward, the mold core body is quickly separated from the lower mold base, allowing the operator to quickly replace the mold core body and improving the versatility and flexibility of the mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled lower mold base of this utility model;

[0016] Figure 3 This is a partial structural diagram of the hollow block of this utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the hollow block structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the lower mold base of this utility model.

[0019] Legend: 1. Base; 2. Lower mold base; 3. Mounting slot; 4. Mold core body; 5. Movable slot; 6. Slot; 7. Adjustment slot; 8. Hollow block; 9. Connecting slot; 10. Through slot; 11. Adjustment block; 12. Connecting plate; 13. Slot; 14. Limiting hole; 15. Return spring; 16. Slide groove; 17. Slider; 18. Square slot; 19. Telescopic rod; 20. Thrust plate; 21. Thrust spring; 22. Cross positioning slot; 23. Cross positioning block; 24. Limiting rod. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a universal injection mold with interchangeable mold cores, including a base 1, a lower mold base 2 fixedly connected to the top of the base 1, an installation groove 3 on the top of the lower mold base 2, a mold core body 4 slidably connected inside the installation groove 3, movable grooves 5 on both sides of the mold core body 4, slots 6 at both ends of the inner cavity of the movable grooves 5, adjustment grooves 7 on both sides of the lower mold base 2, hollow blocks 8 slidably connected inside the adjustment grooves 7, connecting grooves 9 at both ends of the hollow blocks 8, and through grooves 10 at both ends of the hollow blocks 8, the connecting grooves 9 being slidably connected inside the connecting grooves 9. An adjusting block 11 is connected to a connecting plate 12, and a locking block 13 is fixedly connected to one end of the connecting plate 12. By moving the adjusting block 11, the operator moves the connecting plate 12, causing the locking block 13 to be pulled out of the slot 6. Then, the operator pulls the hollow block 8 outward, causing the hollow block 8 to leave the movable slot 5, thereby releasing the fixation of the mold core body 4. Then, by moving the mold core body 4 upward, the mold core body 4 is quickly separated from the lower mold base 2, which allows the operator to quickly replace the mold core body 4, improving the versatility and flexibility of the mold.

[0022] Reference Figure 4 As shown in this embodiment: the hollow block 8 is fixedly connected to a limiting rod 24, and a limiting hole 14 is opened at one end of the connecting plate 12. The inside of the limiting hole 14 is slidably connected to the surface of the limiting rod 24. Through the cooperation of the limiting rod 24 and the limiting hole 14, the connecting plate 12 can be limited, avoiding the phenomenon of displacement or shaking of the connecting plate 12 during movement, and ensuring the stability of the locking block 13 and the locking groove 6.

[0023] Reference Figure 4 As shown in this embodiment: a reset spring 15 is fixedly connected to one end of the connecting plate 12, and one end of the reset spring 15 is fixedly connected to the inside of the hollow block 8. By setting the reset spring 15, when the operator loosens the adjusting block 11, the reset spring 15 can push the connecting plate 12 to reset, thereby driving the locking block 13 to lock into the inside of the locking slot 6, and quickly fixing the position of the mold core body 4.

[0024] Reference Figure 2 and Figure 3As shown in this embodiment: the surface of the locking block 13 is slidably connected to the inside of the locking groove 6, and the external shape of the locking block 13 matches the internal shape of the locking groove 6. Through the slidable connection between the locking block 13 and the locking groove 6, and the matching of the external shape of the locking block 13 with the internal shape of the locking groove 6, the locking block 13 can be accurately and quickly locked into the inside of the locking groove 6, which further improves the stability and convenience of fixing the mold core body 4.

[0025] Reference Figure 2 and Figure 3 As shown in this embodiment: the top and bottom of the inner cavity of the adjustment groove 7 are provided with sliding grooves 16, and the top and bottom of the hollow block 8 are fixedly connected with sliders 17. Through the cooperation of the sliding grooves 16 and sliders 17, the hollow block 8 can be limited, so that the hollow block 8 can slide stably inside the adjustment groove 7, and avoid the hollow block 8 from shifting or shaking when moving.

[0026] Reference Figure 5 As shown in this embodiment: a square groove 18 is provided at the bottom of the inner cavity of the mounting groove 3. Two telescopic rods 19 are fixedly connected to the bottom of the inner cavity of the square groove 18. A push plate 20 is fixedly connected to the top of the telescopic rods 19. A push spring 21 is fixedly connected to the bottom of the push plate 20. The bottom of the push spring 21 is fixedly connected to the bottom of the inner cavity of the square groove 18. By setting up the square groove 18, the telescopic rods 19, the push plate 20 and the push spring 21 in cooperation, the mold core body 4 can be pushed out from the inside of the mounting groove 3 when the fixation is released, which further facilitates the replacement of the mold core body 4 by the staff and improves the convenience of replacing the mold core body 4.

[0027] Reference Figure 2 As shown in this embodiment: both ends of the inner cavity of the mounting groove 3 are provided with cross positioning grooves 22, and both ends of the mold core body 4 are fixedly connected with cross positioning blocks 23. Through the cooperation of the cross positioning grooves 22 and the cross positioning blocks 23, the mold core body 4 can be positioned, so that the mold core body 4 is stably installed inside the mounting groove 3, avoiding the phenomenon of displacement or shaking of the mold core body 4 during use, and further ensuring the accuracy of the injection mold during injection.

[0028] Working principle: By moving the adjusting block 11, the operator moves the connecting plate 12, causing the locking block 13 to be pulled out of the slot 6. Then, the operator pulls the hollow block 8 outward, causing it to leave the movable groove 5, thus releasing the fixation on the mold core body 4. Subsequently, by moving the mold core body 4 upward, the mold core body 4 quickly separates from the lower mold base 2, allowing the operator to quickly change the mold core body 4, improving the mold's versatility and flexibility. The limiting rod 24, in cooperation with the limiting hole 14, limits the connecting plate 12, preventing it from shifting or wobbling during movement, ensuring the stability of the locking block 13 and the slot 6. The return spring 15 allows the operator to push the connecting plate 12 back to its original position when the adjusting block 11 is released, thereby causing the locking block 13 to engage with the slot 6, thus fixing the mold core. The position of the mold core 4 is quickly fixed by sliding connection between the locking block 13 and the locking groove 6. The external shape of the locking block 13 matches the internal shape of the locking groove 6, allowing the locking block 13 to accurately and quickly engage with the inside of the locking groove 6. This further improves the stability and convenience of fixing the mold core 4. By using the square groove 18, telescopic rod 19, push plate 20 and push spring 21 in combination, the mold core 4 can be pushed out from the inside of the mounting groove 3 when it is released from fixation. This further facilitates the replacement of the mold core 4 by the staff and improves the convenience of replacing the mold core 4. The cross positioning groove 22 and the cross positioning block 23 can be used to position the mold core 4, so that the mold core 4 is stably installed inside the mounting groove 3, avoiding the phenomenon of displacement or shaking of the mold core 4 during use, and further ensuring the accuracy of the injection mold during injection.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal injection mold with interchangeable mold cores, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the lower mold base (2). The top of the lower mold base (2) is provided with an installation groove (3). The mold core body (4) is slidably connected inside the installation groove (3). The mold core body (4) is provided with movable grooves (5) on both sides. The movable groove (5) is provided with slots (6) at both ends of the inner cavity. The lower mold base (2) is provided with adjustment grooves (7) on both sides. The adjustment groove (7) is slidably connected with a hollow block (8). The hollow block (8) is provided with connecting grooves (9) at both ends. The hollow block (8) is provided with through grooves (10) at both ends. The connecting groove (9) is slidably connected with an adjustment block (11). One end of the adjustment block (11) is fixedly connected with a connecting plate (12). One end of the connecting plate (12) is fixedly connected with a slot (13).

2. The universal injection mold with interchangeable mold cores according to claim 1, characterized in that: The hollow block (8) is fixedly connected to a limiting rod (24), and a limiting hole (14) is opened at one end of the connecting plate (12). The inside of the limiting hole (14) is slidably connected to the surface of the limiting rod (24).

3. A universal injection mold with interchangeable mold cores according to claim 1, characterized in that: One end of the connecting plate (12) is fixedly connected to a reset spring (15), and one end of the reset spring (15) is fixedly connected to the interior of the hollow block (8).

4. A universal injection mold with interchangeable mold cores according to claim 1, characterized in that: The surface of the card block (13) is slidably connected to the inside of the card slot (6), and the external shape of the card block (13) matches the internal shape of the card slot (6).

5. A universal injection mold with interchangeable mold cores according to claim 1, characterized in that: The top and bottom of the inner cavity of the adjustment groove (7) are provided with sliding grooves (16), and the top and bottom of the hollow block (8) are fixedly connected with sliders (17).

6. A universal injection mold with interchangeable mold cores according to claim 1, characterized in that: The bottom of the inner cavity of the mounting groove (3) is provided with a square groove (18). Two telescopic rods (19) are fixedly connected to the bottom of the inner cavity of the square groove (18). A thrust plate (20) is fixedly connected to the top of the telescopic rod (19). A thrust spring (21) is fixedly connected to the bottom of the thrust plate (20). The bottom of the thrust spring (21) is fixedly connected to the bottom of the inner cavity of the square groove (18).

7. A universal injection mold with interchangeable mold cores according to claim 1, characterized in that: Both ends of the inner cavity of the mounting groove (3) are provided with cross positioning grooves (22), and both ends of the mold core body (4) are fixedly connected with cross positioning blocks (23).

Images