Runner ejection rotating mechanism

Abstract

The utility model provides a runner ejection rotating mechanism, and relates to the technical field of mold structures. Comprising a rotating core which is suitable for supporting a runner and is internally provided with a runner ejector pin; the rotating assembly is rotationally connected with the rotating core and is configured to be capable of driving the rotating core to rotate by a preset angle when the top plate is ejected out; and the delay ejection mechanism is connected to the runner ejector pin and is configured to drive the runner ejector pin to eject the runner out after the rotating assembly drives the rotating core to rotate by a preset angle. According to the scheme, the runner can be smoothly ejected out, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould structure technical field, specifically, a runner ejection rotating mechanism and its mould are provided for solving the problem that the runner is blocked by products when being ejected. BACKGROUND

[0002] In the process of two-color mould injection molding, the runner of one-color product is often ejected first, and the product itself does not need to be ejected. However, due to the position relationship of the product, the direct ejection of the runner is often blocked by the product, resulting in that the runner cannot be smoothly ejected, affecting the production efficiency and product quality. SUMMARY

[0003] The utility model discloses a runner ejection rotating mechanism, aims at solving the above-mentioned problem.

[0004] The utility model adopts the following schemes:

[0005] A runner ejection rotating mechanism, comprising:

[0006] A rotating core is suitable for supporting the runner, and a runner ejector pin is arranged inside;

[0007] A rotating assembly is rotationally connected with the rotating core and is configured to rotate the rotating core by a preset angle when the top plate is ejected;

[0008] A delayed ejection mechanism is connected to the runner ejector pin and is configured to drive the runner ejector pin to eject the runner after the rotating assembly rotates the rotating core by the preset angle.

[0009] Further, the rotating assembly comprises a gear, a rack and a bent pin, wherein the gear is sleeved on the rotating core, the rack is suitable for meshing connection with the gear, one end of the bent pin is connected to the rack, and the other end is connected to the top plate, the bent pin is configured to drive the rack to move transversely to rotate the gear when the top plate rises, thereby driving the rotating core to rotate by the preset angle.

[0010] Further, the bent pin comprises a driving part and a connecting part, the driving part is obliquely arranged on the connecting part, the rack is suitable for being installed at a set height, and the rack is provided with a connecting hole suitable for the driving part to pass through, and the driving part is provided with an inclined surface to slide along the hole wall of the connecting hole when rising, thereby driving the rack to move transversely.

[0011] Furthermore, the delayed ejection mechanism includes a delayed ejector pin and a clearance portion disposed on the top plate, wherein the delayed ejector pin is adapted to be supported below the flow channel ejector pin; the height of the clearance portion is defined as the delay height, and when the top plate rises to a distance exceeding the delay height, it drives the flow channel ejector pin to rise to eject the flow channel.

[0012] Furthermore, the bottom end of the flow channel ejector pin is provided with a first mounting platform that fits against the top plate, so as to drive the flow channel ejector pin to reset when the top plate is reset.

[0013] Furthermore, the top plate includes an ejector plate and a connecting plate connected vertically, the clearance portion is disposed within the connecting plate, and a second mounting platform is provided at the top of the delay ejector to drive the delay ejector to rise and cause the flow channel ejector to be ejected when the ejector plate rises beyond the delay height.

[0014] Furthermore, a bearing is provided on the outer side of the rotating core.

[0015] Beneficial effects:

[0016] This solution first retracts the rack via a bent pin during the ejection process. The rack then drives the rotating core to rotate 90 degrees, ensuring the flow channel avoids the product. A delayed ejection mechanism then ensures the flow channel core has fully rotated 90 degrees before the ejector pin begins to eject the flow channel. This solution improves production efficiency by ensuring smooth ejection of the flow channel through a rotating flow channel that avoids the product; it also prevents product damage caused by improper ejection, protecting product quality; and the automated rotating and delayed ejection mechanisms simplify the operation process and reduce manual intervention. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of a flow channel ejection rotation mechanism according to an embodiment of the present invention;

[0018] Fig. 2 This is an enlarged schematic diagram of the rotating component of a flow channel ejection rotating mechanism according to an embodiment of the present invention;

[0019] Fig. 3 This is a cross-sectional structural schematic diagram of a flow channel ejection rotation mechanism according to an embodiment of this utility model;

[0020] Reference numerals: mold frame 1, top plate 2, connecting plate 21, ejector plate 22, clearance part 211, ejector roller 3, rotating assembly 4, gear 41, rack 42, bent pin 43, drive part 431, connecting part 432, rotating core 44, bearing 45, limiting structure 46, flow channel 5, flow channel ejector pin 6, first mounting platform 61, delayed ejector pin 7, second mounting platform 71. Detailed Implementation

[0021] CombinationFigs. 1-3 As shown, the embodiment provides a mold, which comprises a mold frame 1, a top plate 2, a top roller 3 and the like, and a runner ejection rotating mechanism. The runner ejection rotating mechanism comprises:

[0022] A rotating core 44 is adapted to support the runner 5 and internally provided with a runner ejector pin 6;

[0023] A rotating assembly 4 is rotationally connected with the rotating core 44 and configured to rotate the rotating core 44 by a preset angle when the top plate 2 is ejected;

[0024] A delayed ejection mechanism is connected to the runner ejector pin 6 and configured to drive the runner ejector pin 6 to eject the runner 5 after the rotating assembly 4 rotates the rotating core 44 by the preset angle.

[0025] In the embodiment, the top plate 2 comprises an ejector pin plate 22 and a connecting plate 21, the connecting plate 21 is arranged below the ejector pin plate 22, and a clearance 211 is formed in the connecting plate 21.

[0026] In combination Figs. 1-2 As shown, the rotating assembly 4 comprises a gear 41, a rack 42 and a bent pin 43, wherein the gear 41 is sleeved on the rotating core 44, the rack 42 is adapted to be meshingly connected with the gear 41, one end of the bent pin 43 is connected to the rack 42, and the other end is connected to the top plate 2, the bent pin 43 is configured to drive the rack 42 to move laterally to rotate the gear 41 when the top plate 2 rises, thereby driving the rotating core 44 to rotate by a preset angle. Herein, the bent pin 43 comprises a driving portion 431 and a connecting portion 432, the driving portion 431 is obliquely arranged on the connecting portion 432, the rack 42 is adapted to be installed at a set height, and the rack 42 is provided with a connecting hole adapted for the driving portion 431 to pass through, and the driving portion 431 is provided with an inclined surface to slide along the hole wall of the connecting hole when rising, thereby driving the rack 42 to move laterally. In the embodiment, the rotating assembly 4 further comprises a limiting structure 46 arranged above, below, left and right of the rack 42, so that the rack 42 can only slide in the front-rear direction. When the top plate 2 rises under the drive of the top roller 3, the bent pin 43 is synchronously raised, so that the inclined surface of the driving portion 431 slides along the inner wall of the connecting hole and drives the rack 42 to move backward, thereby driving the gear 41 to rotate. Conversely, when the top plate 2 descends, the other side of the driving portion 431 drives the rack 42 to move forward and drives the gear 41 to flip and reset. By this scheme, the rising of the top plate 2 can be used to synchronously drive the rotating assembly 4 to rotate, without the need for additional driving devices, so that the mold structure is more simple and compact. At the same time, the rotating assembly 4 and the top plate 2 can realize synchronous movement, improving the coordination of the mold work.

[0027] The rotating core 44 is provided with a bearing 45 outside, the top of which is used to support the flow channel 5, and the inside of the rotating core 44 is hollow for mounting the flow channel ejector pin 6, which is adapted to move up and down in the rotating core 44. The flow channel 5 can be rotated by the rotating core 44 by a preset angle. In this embodiment, the angle can be defined as 90°, or the angle can be adjusted according to the actual structure of the mold and the product, so that the product does not hinder the ejection of the flow channel 5 after rotating by a preset angle.

[0028] In combination Fig. 3 As shown, in this embodiment, the delayed ejection mechanism includes a delayed ejector pin 7 and a clearance 211 provided on the top plate 2, wherein the delayed ejector pin 7 is adapted to be supported below the flow channel ejector pin 6; the height of the clearance 211 is defined as a delay height, when the top plate 2 rises to a distance beyond the delay height, the flow channel ejector pin 6 is lifted to eject the flow channel 5. Here, the clearance 211 is provided in the connecting plate 21, and a second hanging table 71 is provided at the top end of the delayed ejector pin 7 to lift the delayed ejector pin and eject the flow channel 5 when the top plate 22 rises to a distance beyond the delay height. For example, the height of the clearance 211 can be defined as 32mm. In addition, a first hanging table 61 is provided at the bottom end of the flow channel ejector pin 6 to fit the top plate 2, so as to drive the flow channel ejector pin 6 to reset when the top plate 2 resets.

[0029] When the top plate 2 and the connecting plate 21 rise synchronously, the ejector plate 22 does not lift the flow channel ejector pin 6 due to the first hanging table 61 at the bottom of the ejector plate 22, at this time, the second hanging table 71 is located at the top of the clearance 211, so that the flow channel ejector pin 6 and the delayed ejector pin 7 remain stationary when the top plate 2 rises to a distance beyond the delay height; when the top plate 2 rises beyond the delay height, the bottom surface of the clearance 211 contacts the second hanging table 71 and lifts the second hanging table 71 synchronously to a preset height, the lifting of the second hanging table 71 synchronously drives the flow channel ejector pin 6 to lift to eject the flow channel 5 in the rotating core 44, thereby completing the separate ejection of the flow channel 5; during the time when the top plate 2 rises by the clearance distance, the rotating assembly 4 drives the flow channel 5 to rotate by a preset angle, ensuring that the flow channel ejector pin 6 does not eject when the flow channel 5 is not rotated in place. When resetting, the top plate 2 is lowered, the ejector plate 22 drives the first hanging table 61 to descend, the first hanging table 61 drives the delayed ejector pin 7 to descend and reset, and the rotating assembly 4 drives the rotating core 44 to reverse and reset.

[0030] Through the embodiment, the rotating flow channel 5 is used to avoid the product, it is ensured that the flow channel 5 can be smoothly ejected, the production efficiency is improved, the damage caused by improper ejection of the flow channel 5 to the product is avoided, and the product quality is protected; the automatic rotating and delayed ejection mechanism simplifies the operation process and reduces manual intervention.

[0031] It should be understood that the above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments, and any technical solution falling within the concept of the present application belongs to the protection scope of the present application.

[0032] The above introduction of the drawings used in the embodiments only shows some embodiments of the present application, and should not be regarded as a limitation on the scope, and for ordinary skilled persons in the art, other related drawings can also be obtained according to the drawings without creative labor.

Claims

1. A runner ejection rotation mechanism characterized by comprising: The utility model relates to a rotating core top pin delay ejection mechanism, including: A rotating core suitable for supporting a flow channel and provided with a flow channel top pin inside; A rotating assembly in rotational connection with the rotating core and configured to rotate the rotating core by a preset angle when the top plate is ejected; A delay ejection mechanism connected to the flow channel top pin and configured to drive the flow channel top pin to eject the flow channel after the rotating assembly rotates the rotating core by the preset angle.

2. The runner ejection rotation mechanism of claim 1, wherein The rotating assembly includes a gear, a rack, and a bent pin, wherein the gear is sleeved on the rotating core, the rack is suitable for meshing connection with the gear, one end of the bent pin is connected to the rack, and the other end is connected to the top plate, the bent pin is configured to drive the rack to move transversely to rotate the gear when the top plate rises, thereby driving the rotating core to rotate by the preset angle.

3. The runner ejection rotation mechanism of claim 2, wherein The bent pin includes a driving part and a connecting part, the driving part is obliquely arranged on the connecting part, the rack is suitable to be installed at a set height, and the rack is provided with a connecting hole suitable for the driving part to pass through, the driving part is provided with an inclined surface to slide along the hole wall of the connecting hole when rising, thereby driving the rack to move transversely.

4. The runner ejection rotation mechanism of claim 1, wherein The delay ejection mechanism includes a delay top pin and a clearance provided on the top plate, wherein the delay top pin is suitable to be supported below the flow channel top pin; the height of the clearance is defined as a delay height, when the top plate rises to a distance exceeding the delay height, the flow channel top pin is driven to rise to eject the flow channel.

5. The runner ejection rotation mechanism of claim 4, wherein The bottom end of the flow channel top pin is provided with a first hanging table abutting the top plate, so as to drive the flow channel top pin to reset when the top plate resets.

6. The runner ejection rotation mechanism of claim 5, wherein The top plate includes a top pin plate and a connecting plate connected in sequence, the clearance is arranged in the connecting plate, and a second hanging table is arranged at the top end of the delay top pin to drive the delay top pin to rise and the flow channel top pin to eject when the top pin plate rises to a distance exceeding the delay height.

7. The runner ejection rotation mechanism of claim 1, wherein A bearing is arranged outside the rotating core.

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