A mold mechanism for rapid mold change

Abstract

The application relates to the technical field of molds, in particular to a mold mechanism capable of rapidly changing molds, which comprises a mold blank and a mold core, the mold blank is provided with a mounting groove for embedding the mold core, the mold core is provided with a clamping groove, the mold blank is provided with a clamping groove sliding block and a quick release structure for controlling the sliding of the clamping groove sliding block, the clamping groove sliding block is provided with a clamping strip matched with the clamping groove, and the application has the advantages of avoiding the problem of tooth sliding and improving the mold changing speed.

Description

Technical Field

[0001] This application relates to the technical field of molds, and in particular to a mold mechanism for quick mold changing. Background Technology

[0002] In the mold manufacturing industry, the mold blank and mold core are key components of a mold. The mold blank, as the skeleton of the entire mold, primarily provides external structural support and is generally made of materials such as steel or aluminum alloy. Its crucial role is to ensure the mold maintains good stability during operation and withstands various forces from processes such as injection molding and die casting.

[0003] The mold core, embedded inside the mold blank, plays a decisive role in the internal structure of the product, directly affecting its final shape, dimensional accuracy, and surface quality. The design and manufacturing precision of the mold core greatly influences the quality and performance of the product.

[0004] Currently, the common method for assembling mold cores and mold blanks is to use multiple fastening bolts to fix the mold core onto the mold blank. However, this traditional fixing method has many drawbacks. First, during the assembly and disassembly of the mold, multiple fastening bolts need to be tightened one by one, which is cumbersome and time-consuming, resulting in low assembly and disassembly efficiency and slow mold changeover speed. In modern manufacturing, where production efficiency is extremely important, this seriously affects the production schedule.

[0005] Secondly, due to the frequent disassembly and assembly of fastening bolts, they are subjected to significant friction and stress, making them prone to stripping. Once a fastening bolt strips, it not only affects the connection stability between the mold core and the mold blank, potentially causing mold core displacement during mold operation and affecting product quality, but also further increases maintenance and time costs by replacing the stripped bolt. Utility Model Content

[0006] To avoid stripping while increasing mold change speed, this application provides a mold mechanism for rapid mold change.

[0007] This application provides a quick mold changing mechanism, which adopts the following technical solution: A quick mold changing mechanism includes a mold blank and a mold core. The mold blank has an installation groove for the mold core to be inserted into, and the mold core has a snap-fit ​​groove. The mold blank has a snap-fit ​​slider and a quick-release structure for controlling the sliding of the snap-fit ​​slider. The snap-fit ​​slider has a retaining strip that can cooperate with the snap-fit ​​groove.

[0008] In one embodiment, the quick-release structure includes a return spring for maintaining the slot slider in sliding engagement with the slot, and a manual structure for compressing the return spring to pull the slot slider.

[0009] In one embodiment: the manual structure includes a connecting rod connected to the slot slider and a manual component for controlling the sliding of the connecting rod on the mold blank, the connecting rod being inserted into the mold blank.

[0010] In one embodiment: the manual component is a cam block rotatably connected to the link rod, and the cam block is provided with a swing handle.

[0011] In one embodiment: the end of the cam block away from the swing handle is semi-circular, and the axis of rotational connection between the cam block and the connecting rod is set off from the center of the semi-circle.

[0012] In one embodiment, the axis of rotational connection between the cam block and the link rod is offset toward the direction of the swing handle.

[0013] In one embodiment, the axis of rotational connection between the cam block and the link rod is offset toward the direction of the vertical swing handle.

[0014] In one embodiment: a limiting bolt is installed on the mold blank, one end of the limiting bolt is inserted into the slot slider, and the return spring is sleeved on the limiting bolt.

[0015] In one embodiment: a limiting bolt is inserted into the mold blank, the limiting bolt passes through the mold blank and connects to the slot slider, and the return spring is sleeved on the limiting bolt.

[0016] In summary, this application has the following beneficial effects: the use of a snap-fit ​​structure to replace bolt fixing simplifies operation, improves mold changing speed, avoids stripping problems, ensures overall structural reliability, reduces subsequent maintenance costs, increases mold changeover rate, and saves labor costs. Attached Figure Description

[0017] Figure 1 This is a structural diagram of existing technology; Figure 2 This is a schematic diagram of a mold mechanism for quick mold changing according to this embodiment; Figure 3 This is a partial sectional view of a mold mechanism for quick mold changing in this embodiment.

[0018] In the diagram, 10 is the first mold blank; 11 is the first mounting slot; 20 is the first mold core; 30 is the fastening bolt; 100 is the mold blank; 110 is the mounting slot; 200 is the mold core; 210 is the snap-fit ​​slot; 300 is the snap-fit ​​slider; 310 is the snap-fit ​​strip; 400 is the quick-release structure; 410 is the return spring; 420 is the manual operation structure; 421 is the connecting rod; 422 is the manual operation component; 4221 is the cam block; 4222 is the swing handle; and 500 is the limit bolt. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] like Figure 1 As shown, the existing mold mechanism includes a first mold blank 10 and a first mold core 20. The first mold blank 10 is provided with a first mounting groove 11 for the first mold core 20 to be embedded. After the first mold core 20 is placed into the first mounting groove 11, it is fixed by four fastening bolts 30. This structure not only has low disassembly and assembly efficiency but also has the problem of stripping.

[0022] Furthermore, due to structural limitations, namely that the first mold blank 10 must have mounting holes for fastening bolts 30 to connect, the thickness of the first mold blank 10 is generally too thick, and the first mounting groove 11 cannot be designed to be through-hole, which leads to many limitations in the design of the mold.

[0023] In this embodiment, a quick mold changing mechanism is provided, such as... Figure 2 As shown, the mold base includes a mold blank 100 and a mold core 200. The mold blank 100 is provided with an installation groove 110 for the mold core 200 to be embedded. The installation groove 110 can be designed to penetrate the mold blank 100 or not. Furthermore, when the mold blank 100 is designed to penetrate the mold blank 100, the thickness of the mold blank 100 can be adjusted according to the requirements.

[0024] The mold core 200 is provided with a snap-fit ​​groove 210, the mold blank 100 is provided with a snap-fit ​​slider 300, and a quick-release structure 400 for controlling the sliding of the snap-fit ​​slider 300. The snap-fit ​​slider 300 is provided with a snap-fit ​​strip 310 that can cooperate with the snap-fit ​​groove 210. In the natural state, the quick-release structure 400 will apply an elastic force to the snap-fit ​​slider 300, keeping the snap-fit ​​strip 310 snapped into the snap-fit ​​slider 300 and fixing the mold core 200.

[0025] In this embodiment, two sets of slotted sliders 300 and quick-release structures 400 are provided and positioned at two opposite positions on the mold blank 100 to lock the two sides of the mold core 200, forming a stable fixing effect.

[0026] like Figure 3As shown, the quick-release structure 400 includes a return spring 410 for maintaining the slot slider 300 in sliding engagement with the slot, and a manual structure 420 for compressing the return spring 410 to pull the slot slider 300. The two ends of the return spring 410 abut against the slot slider 300 and the mold blank 100, respectively.

[0027] The manual operation structure 420 includes a connecting rod 421 connected to the slot slider 300 and a manual operation component 422 for controlling the sliding of the connecting rod 421 on the mold blank 100. The connecting rod 421 is inserted into the mold blank 100 and its end passes through the mold blank 100 and is threadedly connected to the slot slider 300.

[0028] The manual component 422 is a cam block 4221 rotatably connected to the connecting rod 421, and the cam block 4221 is provided with a swing handle 4222.

[0029] The end of the cam block 4221 away from the swing handle 4222 is semi-circular, and the axis of rotational connection between the cam block 4221 and the connecting rod 421 is set off from the center of the semi-circle.

[0030] Specifically, in this embodiment, the axis of rotational connection between the cam block 4221 and the connecting rod 421 is offset towards the direction of the swing handle 4222. With this offset structure, when the swing handle 4222 rotates to be coaxial with the connecting rod 421, the connecting rod 421 drives the slot slider 300 to slide to the distance furthest from the mold core 200, at which point the locking of the mold core 200 is released.

[0031] However, it should be noted that the eccentric structure in this embodiment is not necessarily required. Alternatively, the axis of rotational connection between the cam block 4221 and the connecting rod 421 can be offset in the direction of the vertical swing handle 4222. When this offset structure is used, the swing handle 4222 no longer needs to be rotated 90 degrees to unlock, but needs to be rotated 180 degrees.

[0032] In addition, in order to better position the return spring 410, a limiting bolt 500 is inserted on the mold blank 100 in this embodiment. The limiting bolt 500 passes through the mold blank 100 and is connected to the slot slider 300. The return spring 410 is sleeved on the limiting bolt 500.

[0033] It should be noted that, in addition to being connected to the slot slider 300, the limit bolt 500 can also be directly threaded onto the mold blank 100, with one end of the limit bolt 500 passing through the limit bolt 500 and inserted into the slot slider 300.

[0034] In addition, in order to reduce space and protect the return spring 410, a storage groove can be provided on the slot slider 300 so that the return spring 410 retracts into the storage groove after compression.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-change mold mechanism, comprising a mold blank (100) and a mold core (200), wherein the mold blank (100) is provided with a mounting groove (110) for the mold core (200) to be fitted, characterized in that: The mold core (200) is provided with a snap-fit ​​groove (210), the mold blank (100) is provided with a snap-fit ​​slider (300) and a quick-release structure (400) for controlling the sliding of the snap-fit ​​slider (300), and the snap-fit ​​slider (300) is provided with a snap-fit ​​strip (310) that can cooperate with the snap-fit ​​groove (210).

2. The mold mechanism for quick mold changing according to claim 1, characterized in that: The quick-release structure (400) includes a return spring (410) for maintaining the slot slider (300) in sliding engagement with the slot, and a manual structure (420) for compressing the return spring (410) to pull the slot slider (300).

3. The mold mechanism for quick mold changing according to claim 2, characterized in that: The manual operation structure (420) includes a connecting rod (421) connected to the slot slider (300) and a manual operation component (422) for controlling the sliding of the connecting rod (421) on the mold blank (100). The connecting rod (421) is inserted into the mold blank (100).

4. The mold mechanism for quick mold changing according to claim 3, characterized in that: The manual control component (422) is a cam block (4221) rotatably connected to the connecting rod (421), and the cam block (4221) is provided with a swing handle (4222).

5. A quick mold changing mechanism according to claim 4, characterized in that: The end of the cam block (4221) away from the swing handle (4222) is semi-circular, and the axis of rotational connection between the cam block (4221) and the connecting rod (421) is set off from the center of the semi-circle.

6. The mold mechanism for quick mold changing according to claim 5, characterized in that: The axis of rotational connection between the cam block (4221) and the connecting rod (421) is offset in the direction of the swing handle (4222).

7. A quick mold changing mechanism according to claim 5, characterized in that: The axis of rotational connection between the cam block (4221) and the link rod (421) is offset toward the direction of the vertical swing handle (4222).

8. A quick mold changing mechanism according to claim 2, characterized in that: A limiting bolt (500) is installed on the mold blank (100), one end of the limiting bolt (500) is inserted into the slot slider (300), and the return spring (410) is sleeved on the limiting bolt (500).

9. A quick mold changing mechanism according to claim 2, characterized in that: A limiting bolt (500) is inserted into the mold blank (100). The limiting bolt (500) passes through the mold blank (100) and is connected to the slot slider (300). The return spring (410) is sleeved on the limiting bolt (500).

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