Air tightness detection device for plastic bottle processing
The elastic clamping mechanism solves the problem of plastic bottle detection error caused by traditional clamping mechanisms, and realizes stable clamping and adaptive adjustment of plastic bottles of different diameters, thereby improving the accuracy and stability of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional clamping mechanisms are prone to causing indentations or deformation during plastic bottle inspection, and cannot adaptively adjust the clamping force to compensate for deformation, leading to inspection errors.
The flexible clamping mechanism, including the cooperation of support springs and clamping ballast wheels, provides stable clamping force and adaptive rotation, avoiding scratches or deformation of the bottle body caused by rigid clamping.
It achieves stable clamping of plastic bottles of different diameters, avoiding clamping failure caused by bottle shrinkage during the testing process, and improving the accuracy and stability of the testing.
Smart Images
Figure CN224095341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic bottle processing equipment, specifically an airtightness testing device for plastic bottle processing. Background Technology
[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene, with the addition of various organic solvents. They are then heated at high temperatures and formed into plastic containers through blow molding, extrusion blow molding, or injection molding using plastic molds.
[0003] Traditional clamping mechanisms use rigid jaws or chucks of fixed dimensions. When clamping force is applied, they are prone to leaving indentations or scratches on the outer wall of plastic bottles. This is especially true for thin-walled bottles, which can cause irreversible deformation and affect product yield. At the same time, plastic bottles are prone to slight shrinkage due to changes in medium pressure or temperature during the inspection process. Traditional rigid clamping mechanisms cannot adaptively adjust the clamping force to accommodate deformation, which can easily lead to clamping slack or overload failure, resulting in inspection errors such as bottle displacement and seal detachment. To address these issues, an airtightness inspection device for plastic bottle processing is provided. Utility Model Content
[0004] The purpose of this invention is to provide an airtightness testing device for plastic bottle processing, which can adapt to the deformation generated during the testing process of plastic bottles and provide stable clamping and fixing for plastic bottles, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an airtightness testing device for plastic bottle processing, comprising:
[0006] Plastic bottle pushing mechanism;
[0007] A plastic bottle fixing mechanism is provided below each set of plastic bottle sealing mechanisms, and the plastic bottle fixing mechanism is used to clamp and fix the plastic bottle to be tested;
[0008] A plastic bottle sealing mechanism, wherein several sets of plastic bottle sealing mechanisms are provided inside the plastic bottle pushing mechanism, and the plastic bottle sealing mechanism is used to seal the plastic bottle to be tested that is fixed by the plastic bottle fixing mechanism.
[0009] As a further embodiment of this utility model: the plastic bottle pushing mechanism includes an operating table support, a first electric telescopic rod is fixedly connected to the top plate of the operating table support, an upper fixed disc is fixedly connected to the movable end of the first electric telescopic rod, and a deep measuring cylinder is fixedly connected to the bottom plate of the operating table support.
[0010] As a further embodiment of this utility model: the plastic bottle sealing mechanism includes an upper fixing plate, a gradient rubber stopper is fixedly connected below the upper fixing plate, and three sets of second electric telescopic rods are fixedly connected below the upper fixing plate.
[0011] As a further embodiment of this utility model: the plastic bottle fixing mechanism includes a lower fixing ring, an upper double-layer rotating ring rotatably connected above the lower fixing ring, a square frame rotatably connected to the inner side of the upper double-layer rotating ring, a rotating sliding arm slidably connected to the inner side of the square frame, a clamping ballast wheel rotatably connected to the inner side of the rotating sliding arm, a hand lever fixedly connected to the outer side of the upper double-layer rotating ring, a fixed vertical plate fixedly connected above the lower fixing ring, and a supporting spring fixedly connected to the side of the fixed vertical plate.
[0012] As a further improvement of this utility model: each set of plastic bottle sealing mechanisms is fixedly connected in a ring at equal intervals below the upper fixed disc by a set of upper fixed plates.
[0013] As a further improvement of this utility model: the movable ends of the three sets of second electric telescopic rods in each set of plastic bottle sealing mechanisms are all fixedly connected to a lower fixing ring in a set of plastic bottle fixing mechanisms.
[0014] As a further embodiment of this utility model: one end of the rotating sliding arm is rotatably connected above the lower fixed ring, and the inner side of the other end is rotatably connected to the clamping ballast wheel.
[0015] As a further improvement of this utility model, the two ends of the support spring are respectively fixedly connected to the rotating sliding arm and the outer side of the fixed vertical plate.
[0016] As a further improvement of this utility model: each set of plastic bottle fixing mechanisms has four square frames, four rotating sliding arms, four clamping ballast wheels and four fixing vertical plates, which are distributed in a ring at equal intervals above the lower fixing ring.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] The elastic clamping mechanism formed by the support spring and the clamping ballast wheel in this invention can provide a stable radial clamping force to fix plastic bottles of different diameters. It can also avoid scratches or deformation of the bottle body caused by rigid clamping by adaptive rotation of the ballast wheel. It is especially suitable for the inspection of thin-walled plastic bottles. During the inspection process, the clamping ballast wheel can adaptively rotate with the slight deformation of the bottle body, avoiding the bottle body shrinkage caused by water pressure and thus preventing clamping failure, ensuring stable clamping of the plastic bottle. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the plastic bottle pushing mechanism in this utility model;
[0021] Figure 3 This is a schematic diagram of the plastic bottle sealing mechanism in this utility model;
[0022] Figure 4 This is a schematic diagram of the plastic bottle fixing mechanism in this utility model.
[0023] In the diagram: 1. Plastic bottle pushing mechanism; 2. Plastic bottle sealing mechanism; 3. Plastic bottle fixing mechanism; 11. Operating table support; 12. First electric telescopic rod; 13. Upper fixed disc; 14. Deep measuring cylinder; 21. Upper fixed plate; 22. Gradient rubber stopper; 23. Second electric telescopic rod; 31. Lower fixed ring; 32. Upper double-layer rotating ring; 33. Square frame; 34. Rotating sliding arm; 35. Clamping ballast wheel; 36. Hand lever; 37. Fixed vertical plate; 38. Support spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.
[0026] Reference Figures 1 to 4In this embodiment of the present invention, an airtightness testing device for processing plastic bottles includes:
[0027] Plastic bottle pushing mechanism 1;
[0028] Plastic bottle fixing mechanism 3 is provided below each set of plastic bottle sealing mechanism 2. Plastic bottle fixing mechanism 3 is used to clamp and fix the plastic bottle to be tested.
[0029] The plastic bottle sealing mechanism 2 is provided inside the plastic bottle pushing mechanism 1 with several sets of plastic bottle sealing mechanisms 2. The plastic bottle sealing mechanism 2 is used to seal the plastic bottle to be tested that is fixed by the plastic bottle fixing mechanism 3.
[0030] The plastic bottle pushing mechanism 1 includes an operating table support 11, a first electric telescopic rod 12 is fixedly connected to the top plate of the operating table support 11, an upper fixed disc 13 is fixedly connected to the movable end of the first electric telescopic rod 12, and a deep measuring cylinder 14 is fixedly connected to the bottom plate of the operating table support 11.
[0031] According to the above structure: the first electric telescopic rod 12 drives the upper fixed disc 13 to rise and fall through vertical telescopic movement. When the detection process is started, the upper fixed disc 13 drives the plastic bottle sealing mechanism 2 and the plastic bottle fixing mechanism 3 to fall as a whole, pushing the plastic bottle fixing mechanism 3, which fixes the plastic bottle to be tested, into the deep measuring cylinder 14.
[0032] The plastic bottle sealing mechanism 2 includes an upper fixing plate 21. Each set of plastic bottle sealing mechanisms 2 is fixedly connected in a ring at equal intervals below the upper fixing disc 13 via an upper fixing plate 21. A gradient rubber plug 22 is fixedly connected below the upper fixing plate 21. Three sets of second electric telescopic rods 23 are fixedly connected below the upper fixing plate 21.
[0033] According to the above structure: the gradient rubber stopper 22 moves down synchronously with the upper fixing plate 21, and the sealing plugs of different diameters are stacked layer by layer from small to large to facilitate the adaptation to the bottle mouths of plastic bottles of different diameters. The distance between the gradient rubber stopper 22 and the plastic bottle fixing mechanism 3 is shortened by the second electric telescopic rod 23 to achieve airtight sealing.
[0034] The plastic bottle fixing mechanism 3 includes a lower fixing ring 31. The movable ends of the three sets of second electric telescopic rods 23 in each set of plastic bottle sealing mechanism 2 are fixedly connected to a set of lower fixing rings 31 in the plastic bottle fixing mechanism 3. The upper double-layer rotating ring 32 is rotatably connected above the lower fixing ring 31. A square frame 33 is rotatably connected to the inner side of the upper double-layer rotating ring 32. A rotating sliding arm 34 is slidably connected to the inner side of the square frame 33. A clamping ballast wheel 35 is rotatably connected to the inner side of the rotating sliding arm 34. One end of the rotating sliding arm 34 is rotatably connected above the lower fixing ring 31, and the inner side of the other end is rotatably connected to the clamping ballast wheel 35. A hand lever 36 is fixedly connected to the outer side of the upper double-layer rotating ring 32. A fixed vertical plate 37 is fixedly connected above the lower fixing ring 31. A support spring 38 is fixedly connected to the side of the fixed vertical plate 37. The two ends of the support spring 38 are fixedly connected to the rotating sliding arm 34 and the outer side of the fixed vertical plate 37, respectively.
[0035] According to the above structure: when the lever 36 is manually turned, the upper double-layer rotating ring 32 rotates. At this time, the support spring 38 is gradually compressed from the initial compressed state. Through the sliding linkage between the square frame 33 and the rotating sliding arm 34, the four sets of clamping ballast wheels 35 are synchronously retracted or expanded radially. The support spring 38 provides reverse tension to the rotating sliding arm 34 to ensure the elastic clamping force of the clamping ballast wheels 35 on the outer wall of the plastic bottle. This not only ensures that the bottle body is effectively clamped, but also ensures that the bottle mouth is aligned, so that the bottle mouth is accurately aligned and tightly fitted with the gradient rubber stopper 22 in the plastic bottle sealing mechanism 2. After the plastic bottle is clamped, the clamping ballast wheels 35 can adaptively adjust the contact angle with the bottle body rotation to avoid scratching the bottle body and improve clamping stability.
[0036] The working principle of this utility model is as follows: The operator places the plastic bottle to be tested vertically above the deep measuring cylinder 14, manually moves the lever 36 of the plastic bottle fixing mechanism 3, and drives the upper double-layer rotating ring 32 to rotate. At this time, the square frame 33 rotates the sliding arm 34 outward, the four sets of clamping ballast wheels 35 expand synchronously, the support spring 38 is compressed and stored. After the plastic bottle is placed into the clamping space formed by the clamping ballast wheels 35, the lever 36 is released, and the upper double-layer rotating ring 32 rotates under the action of the support spring 38. The support spring 38 releases its elastic force to push the rotating sliding arm 34 to close, and the clamping ballast wheels 35 hold the bottle body with elastic pressure. At the same time, the central axis of the bottle mouth is automatically aligned with the gradient rubber stopper 22.
[0037] The gradient rubber stopper 22 automatically matches the corresponding sealing stopper according to the bottle mouth diameter, and the three sets of second electric telescopic rods 23 synchronously fine-tune the downward stroke to make the rubber stopper and the bottle mouth form an interference fit seal.
[0038] Subsequently, the first electric telescopic rod 12 is activated and extends downward, driving the upper fixed disc 13 to move all the plastic bottle sealing mechanisms 2 downward in sync. At this time, the plastic bottle fixing mechanism 3 is pressed down into the deep measuring cylinder 14, and the bottle body is completely immersed in the detection medium. If the plastic bottle is not airtight, the salt water in the deep measuring cylinder 14 will enter the plastic bottle through the gap, generating bubbles. If the plastic bottle is not strong enough, it will break, which will also generate bubbles.
[0039] During the testing process, the clamping ballast wheel 35 can rotate adaptively with the slight deformation of the bottle body, avoiding clamping failure due to slight shrinkage of the bottle body.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An airtightness testing device for plastic bottle processing, characterized in that, include: Plastic bottle pushing mechanism (1); Plastic bottle fixing mechanism (3) is provided below each set of plastic bottle sealing mechanism (2), and the plastic bottle fixing mechanism (3) is used to clamp and fix the plastic bottle to be tested; Plastic bottle sealing mechanism (2), the plastic bottle sealing mechanism (2) is provided with several sets inside the plastic bottle pushing mechanism (1), the plastic bottle sealing mechanism (2) is used to seal the plastic bottle to be tested that is fixed by the plastic bottle fixing mechanism (3).
2. The airtightness testing device for plastic bottle processing according to claim 1, characterized in that, The plastic bottle pushing mechanism (1) includes an operating table support (11), a first electric telescopic rod (12) is fixedly connected to the top plate of the operating table support (11), an upper fixed disc (13) is fixedly connected to the movable end of the first electric telescopic rod (12), and a deep measuring cylinder (14) is fixedly connected to the bottom plate of the operating table support (11).
3. The airtightness testing device for plastic bottle processing according to claim 2, characterized in that, The plastic bottle sealing mechanism (2) includes an upper fixing plate (21), a gradient rubber plug (22) is fixedly connected below the upper fixing plate (21), and three sets of second electric telescopic rods (23) are fixedly connected below the upper fixing plate (21).
4. The airtightness testing device for plastic bottle processing according to claim 3, characterized in that, The plastic bottle fixing mechanism (3) includes a lower fixing ring (31), an upper double-layer rotating ring (32) is rotatably connected above the lower fixing ring (31), a square frame (33) is rotatably connected to the inner side of the upper double-layer rotating ring (32), a rotating sliding arm (34) is slidably connected to the inner side of the square frame (33), a clamping ballast wheel (35) is rotatably connected to the inner side of the rotating sliding arm (34), a hand lever (36) is fixedly connected to the outer side of the upper double-layer rotating ring (32), a fixed vertical plate (37) is fixedly connected above the lower fixing ring (31), and a support spring (38) is fixedly connected to the side of the fixed vertical plate (37).
5. The airtightness testing device for plastic bottle processing according to claim 3, characterized in that, Each set of plastic bottle sealing mechanisms (2) is fixedly connected in a ring at equal intervals below the upper fixed disc (13) by a set of upper fixed plates (21).
6. The airtightness testing device for plastic bottle processing according to claim 4, characterized in that, Each set of plastic bottle sealing mechanisms (2) has three sets of second electric telescopic rods (23) whose movable ends are fixedly connected to a set of plastic bottle fixing mechanisms (3) with a lower fixing ring (31).
7. The airtightness testing device for plastic bottle processing according to claim 4, characterized in that, One end of the rotating sliding arm (34) is rotatably connected above the lower fixed ring (31), and the other end is rotatably connected to the clamping ballast wheel (35) on its inner side.
8. The airtightness testing device for plastic bottle processing according to claim 4, characterized in that, The two ends of the support spring (38) are fixedly connected to the outer sides of the rotating slide arm (34) and the fixed vertical plate (37), respectively.
9. The airtightness testing device for plastic bottle processing according to claim 4, characterized in that, Each set of plastic bottle fixing mechanism (3) has four square frames (33), four rotating sliding arms (34), four clamping ballast wheels (35) and four fixing vertical plates (37), which are distributed in a ring at equal intervals above the lower fixing ring (31).