A rapid demolding device for injection molded preforms

Abstract

The utility model discloses a kind of injection moulding bottle blank quick demolding devices, it is related to injection moulding auxiliary equipment technical field, including bending frame, the one end of bending frame is connected with extension pipe, the one end of extension pipe is connected with handle, the inside sliding connection of bending frame is limited to mechanism, the limited mechanism includes rotating rod, extension side rod and transmission rod, the end portion of rotating rod is fixedly installed with sector gear, the limited mechanism of the utility model is set by rotating rod, extension side rod and transmission rod, cooperate with the anti-skid block of rotating rod end and staggered arrangement extension side rod, can be flexibly selected according to bottle blank caliber clamping mode: narrow mouth is used to extension side rod and is pressed, wide mouth is used to anti-skid block and is clamped, substantially improve the adaptability of device to different specifications bottle blank, effectively avoid bottle blank to fall off or damage.

Description

Technical Field

[0001] This utility model relates to the field of injection molding auxiliary equipment technology, and in particular to a rapid demolding device for injection molded bottle preforms. Background Technology

[0002] In the injection molding process of bottle preforms, the preforms need to be quickly ejected from the mold after molding to ensure production efficiency.

[0003] However, in the existing technology, most demolding devices adopt a single clamping or pushing structure, which has poor adaptability to injection molded preforms of different diameters (such as narrow mouth and wide mouth). They often cause problems such as unstable clamping leading to preform falling off, or improper control of pushing force causing preform damage. This results in low demolding efficiency and high preform loss rate, making it difficult to meet the needs of large-scale injection molding production. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor adaptability, unstable transmission, and cumbersome operation of existing injection molding preform demolding devices, which lead to low demolding efficiency and easy damage to preforms. Therefore, this invention proposes a rapid demolding device for injection molding preforms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rapid demolding device for injection molded bottle preforms, comprising a bending frame, one end of which is threadedly connected to an extension tube, and one end of which is threadedly connected to a handle. A limiting mechanism is slidably connected inside the bending frame. The limiting mechanism includes a rotating rod, an extension side rod, and a transmission rod. A sector gear is fixedly installed at the end of the rotating rod, and an anti-slip block is fixedly installed at the end of the rotating rod. An extension side rod is fixedly installed on one side of the rotating rod, and the extension side rod and the rotating rod are arranged alternately. The rotating rod meshes with the transmission rod through the sector gear. A first toothed rod is fixedly connected to one end of the transmission rod, and the first toothed rod is slidably connected to one end inside the bending frame.

[0006] Preferably, the end of the bent frame is threaded with an adapter, and one end of the rotating rod is rotatably mounted on the edge of the adapter.

[0007] Preferably, a second toothed rod is slidably connected to the other end of the inside of the bent frame.

[0008] Preferably, a positioning rod is fixedly installed at the corner inside the bent frame, and a transmission gear is rotatably installed on the outer wall of the positioning rod.

[0009] Preferably, the first rack and the second rack are arranged alternately, and both the first rack and the second rack mesh with the transmission gear.

[0010] Preferably, a push rod is fixedly connected to the end of the second toothed rod, and the push rod is slidably disposed inside the extension tube.

[0011] Preferably, the end of the push rod extends through the handle.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting a limiting mechanism consisting of a rotating rod, an extension side rod and a transmission rod, and cooperating with the anti-slip block at the end of the rotating rod and the staggered extension side rods, the clamping method can be flexibly selected according to the bottle preform diameter: the narrow mouth is held by the extension side rod, and the wide mouth is clamped by the anti-slip block, which greatly improves the adaptability of the device to bottle preforms of different specifications and effectively avoids the bottle preform from falling off or being damaged.

[0013] 2. In this utility model, by setting a first toothed rod and a second toothed rod inside the bent frame, and using the transmission gear supported by the positioning rod to realize the linkage of the two toothed rods, combined with the push rod through the handle to drive the second toothed rod, a stable force transmission path is formed. This not only reduces the force intensity of the operator, but also improves the transmission accuracy and stability, ensuring smooth and efficient demolding action, and further guaranteeing the production rhythm. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a rapid demolding device for injection molded bottle preforms proposed in this utility model; Figure 2 This is a structural breakdown diagram of a rapid demolding device for injection molded bottle preforms proposed in this utility model; Figure 3 This utility model Figure 1 Enlarged structural diagram of section A; Figure 4 This is a schematic diagram of the planar structure of a rapid demolding device for injection molded bottle preforms proposed in this utility model.

[0015] Legend: 1. Limiting mechanism; 2. Bending frame; 3. Extension tube; 4. Handle; 11. Rotating rod; 12. Extension side rod; 13. Adapter; 14. Transmission rod; 15. Positioning rod; 16. Transmission gear; 17. First gear; 18. Second gear; 19. Anti-slip block; 110. Push rod. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figure 1-4 As shown, this utility model provides a rapid demolding device for injection molded bottle preforms, including a bending frame 2. One end of the bending frame 2 is threadedly connected to an extension tube 3, and one end of the extension tube 3 is threadedly connected to a handle 4. A limiting mechanism 1 is slidably connected inside the bending frame 2. The limiting mechanism 1 includes a rotating rod 11, an extension side rod 12, and a transmission rod 14. A sector gear is fixedly installed at the end of the rotating rod 11, and an anti-slip block 19 is fixedly installed at the end of the rotating rod 11. An extension side rod 12 is fixedly installed on one side of the rotating rod 11. The extension side rod 12 and the rotating rod 11 are arranged alternately. The rotating rod 11 meshes with the transmission rod 14 through the sector gear. A first toothed rod 17 is fixedly connected to one end of the transmission rod 14. The first toothed rod 17 is slidably connected to one end inside the bending frame 2. An adapter 13 is threadedly connected to the end of the bending frame 2. One end of the rotating rod 11 is rotatably installed at the edge of the adapter 13.

[0019] The specific setup and function of this embodiment are described below. The core structure of the device includes a bending frame 2, one end of which is threadedly connected to an extension tube 3, and the other end of the extension tube 3 is threadedly connected to a handle 4. A limiting mechanism 1, consisting of a rotating rod 11, an extension side rod 12, and a transmission rod 14, is slidably connected inside the bending frame 2. A sector gear and an anti-slip block 19 are fixedly installed at the end of the rotating rod 11, and an extension side rod 12, arranged alternately with the rotating rod 11, is fixedly installed on one side. The rotating rod 11 meshes with the transmission rod 14 through the sector gear at its end. A first toothed rod 17, fixedly connected to one end of the transmission rod 14, is slidably connected to one end inside the bending frame 2. Simultaneously, an adapter 13 is threadedly connected to the end of the bending frame 2, and one end of the rotating rod 11 is rotatably mounted at the edge of the adapter 13. During operation, the operator can control the entire device by holding the handle 4. The shape of the injection preform determines the position of the limiting mechanism 1. If the injection preform is narrow-mouthed, the rotating rod 11 is inserted into the interior of the injection preform, and then the rotating rod 11 is unfolded. The extended side rod 12 is used to hold the injection preform in place. If the injection preform is wide-mouthed, the rotating rod 11 is unfolded first, and the operating force is transmitted to the bending frame 2 via the extension tube 3. The anti-slip block 19 clamps the entire injection preform. The rotational characteristics of the rotating rod 11 at the edge of the adapter 13 drive the sector gear at its end to rotate. The sector gear then meshes with the transmission rod 14, causing the transmission rod 14 to drive the first toothed rod 17 to slide inside the bending frame 2. At the same time, the extended side rod 12 on one side of the rotating rod 11 moves with the rotating rod 11. The limiting mechanism 1 slides and adjusts its position within the bending frame 2. The coordinated action of all components enables the rapid demolding of the injection preform. The beneficial effects are as follows: the device provides a stable support structure through the bent frame 2, and the threaded connection between the extension tube 3 and the handle 4 facilitates the operator's grip and control of the device, improving operational convenience; the design of each component in the limiting mechanism 1, the meshing transmission between the sector gear at the end of the rotating rod 11 and the transmission rod 14, combined with the sliding of the first toothed rod 17 within the bent frame 2, can accurately adjust the position and state of the limiting mechanism 1; the staggered extension side rods 12 on one side of the rotating rod 11 can enhance the limiting effect on the preform; the adapter 13 plays a stabilizing role in the rotation and installation of the rotating rod 11, which can effectively improve the efficiency and stability of the injection molded preform demolding, ensure that the demolding process is fast and not easily damaged, and improve production efficiency and product quality.

[0020] Example 2: Figure 3 and Figure 4 As shown, a second toothed rod 18 is slidably connected to the other end of the inside of the bent frame 2. A positioning rod 15 is fixedly installed at the corner inside the bent frame 2. A transmission gear 16 is rotatably installed on the outer wall of the positioning rod 15. The first toothed rod 17 and the second toothed rod 18 are arranged alternately. Both the first toothed rod 17 and the second toothed rod 18 mesh with the transmission gear 16. A push rod 110 is fixedly connected to the end of the second toothed rod 18. The push rod 110 is slidably disposed inside the extension tube 3. The end of the push rod 110 passes through the handle 4.

[0021] The overall effect of this embodiment is as follows: the second toothed rod 18, which is slidably connected to the other end inside the bent frame 2, meshes with the transmission gear 16, which is rotatably mounted on the outer wall of the positioning rod 15 at the inner corner, and is staggered with the first toothed rod 17. The first toothed rod 17 also meshes with the transmission gear 16. The positioning rod 15, which is fixed at the inner corner of the bent frame 2, provides rotational support for the transmission gear 16. The push rod 110, which is fixedly connected to the end of the second toothed rod 18, is slidably disposed inside the extension tube 3. During operation, the push rod 110 pushes the second toothed rod 18 to drive the meshing transmission gear 16, and the transmission gear 16 then pushes the first toothed rod 17 to slide along the direction of the bent frame 2. The positioning rod 15 fixes and supports the transmission gear 16, enhancing structural stability. The transmission gear 16 makes the first toothed rod 17 and the second toothed rod 18 linked together. The two staggered toothed rods slide in opposite directions, improving transmission efficiency and accuracy. The second toothed rod 18 expands the internal transmission structure of the bent frame 2. The cooperation of each component makes the force transmission during demolding more stable, ensuring smoother demolding operation and improving the overall practicality of the device.

[0022] The operation and working principle of this device are as follows: The operator holds handle 4 to control the entire device. The position of the limiting mechanism 1 is selected according to the shape of the injection molding preform. If the injection molding preform has a narrow mouth, the rotating rod 11 is inserted into the interior of the preform, and the extended side rod 12 is used to hold the preform in place. If the injection molding preform has a wide mouth, the rotating rod 11 is unfolded, and the anti-slip block 19 clamps the entire preform. The push rod 110 pushes the second gear 18, which in turn drives the transmission gear 16, which meshes with it, to rotate on the outer wall of the positioning rod 15. This causes the first gear 17 to slide along the direction of the bent frame 2. The sliding of the first gear 17 is transmitted to the sector gear at the end of the rotating rod 11 through the transmission rod 14, causing the rotating rod 11 to rotate at the edge of the adapter 13. At the same time, the extension rod 12 on one side of the rotating rod 11 moves with the rotating rod 11. During the process, the push rod 110 slides inside the extension tube 3, and its end passes through the handle 4 for operation. The limiting mechanism 1 slides and adjusts its position within the bent frame 2. After fixing the injection molded bottle preform, it can be directly removed to realize the demolding operation of the injection molded bottle preform.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rapid demolding device for injection molded bottle preforms, comprising a bending frame (2), one end of the bending frame (2) being threadedly connected to an extension tube (3), and one end of the extension tube (3) being threadedly connected to a handle (4), characterized in that: The bending frame (2) is internally connected to a limiting mechanism (1). The limiting mechanism (1) includes a rotating rod (11), an extension side rod (12), and a transmission rod (14). A sector gear is fixedly installed at the end of the rotating rod (11). An anti-slip block (19) is fixedly installed at the end of the rotating rod (11). An extension side rod (12) is fixedly installed on one side of the rotating rod (11). The extension side rod (12) and the rotating rod (11) are arranged alternately. The rotating rod (11) meshes with the transmission rod (14) through the sector gear. A first toothed rod (17) is fixedly connected to one end of the transmission rod (14). The first toothed rod (17) is slidably connected to one end inside the bending frame (2).

2. The rapid demolding device for injection molded bottle preforms according to claim 1, characterized in that: The end of the bent frame (2) is threaded with an adapter (13), and one end of the rotating rod (11) is rotatably mounted on the edge of the adapter (13).

3. The rapid demolding device for injection molded bottle preforms according to claim 1, characterized in that: The other end of the bent frame (2) is slidably connected to a second toothed rod (18).

4. The rapid demolding device for injection molded bottle preforms according to claim 1, characterized in that: A positioning rod (15) is fixedly installed at the corner inside the bent frame (2), and a transmission gear (16) is rotatably installed on the outer wall of the positioning rod (15).

5. The rapid demolding device for injection molded bottle preforms according to claim 3, characterized in that: The first rack (17) and the second rack (18) are arranged alternately, and both the first rack (17) and the second rack (18) mesh with the transmission gear (16).

6. The rapid demolding device for injection molded bottle preforms according to claim 5, characterized in that: The end of the second toothed rod (18) is fixedly connected to a push rod (110), which is slidably disposed inside the extension tube (3).

7. The rapid demolding device for injection molded bottle preforms according to claim 6, characterized in that: The end of the push rod (110) passes through the handle (4).

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