Plastic bottle leak detection device

By designing an automated plastic bottle leak detection device, which combines a rotating conveyor and laser detection with an electric pusher, the device enables automatic detection and rapid removal of defective products from plastic bottles. This solves the problem of needing to stop the machine and manually remove the bottles in existing technologies, thereby improving production efficiency.

CN223470774UActive Publication Date: 2025-10-24ZHUHAI HESHENG PLASTIC PACKAGING CO LTD
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Patent Information

Application Number
CN202423118298.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-24
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing plastic bottle leak detection devices require stopping the machine and manually removing defective products after detecting them, resulting in low work efficiency.

Method used

A device comprising a rotating conveyor, belt, sealing head, laser emitter and receiver, electric telescopic rod, and PLC control panel was designed to achieve automatic detection and rapid removal of defective products.

Benefits of technology

It enables automated inspection of plastic bottles and rapid rejection of defective products, thereby improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223470774U_ABST
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Abstract

The utility model discloses a plastic bottle leak hunting device which comprises a rotary conveying frame, the surface of the rotary conveying frame is sleeved with a first belt and a second belt in a tensioning mode, the surface of the rotary conveying frame is fixedly connected with a fixing plate, and the inner wall of the fixing plate is connected with an adjusting plate in a sliding mode. A first electric telescopic rod is fixedly connected to the upper surface of the adjusting plate, a sealing pressing head is fixedly connected to the output end of the first electric telescopic rod, an air conveying pipe is fixedly connected to the inner wall of the sealing pressing head, an air pressure detector is fixedly connected to the surface of the air conveying pipe, and an induction pushing mechanism is fixedly connected to the surface of the rotary conveying frame. When air leakage is detected, the C-shaped push plate pushes the plastic bottles to move, so that the soft gasket is stressed, the protection plates are driven to rotate, the pair of protection plates are in an opening state, the air-leakage plastic bottles fall off from the rotary conveying frame through the material stripping inclined plate, and then unqualified air-leakage plastic products are rapidly and automatically taken down.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plastic bottle leak detection device technical field especially relates to a plastic bottle leak detection device. BACKGROUND

[0002] The side leak detection device can exert air pressure on the plastic bottle during plastic bottle production to determine whether the plastic bottle has a risk of leakage and to ensure that the liquid stored in the plastic bottle will not leak.

[0003] In the past, the plastic bottle leak detection device needs to be stopped manually to take out the defective product after detecting the defective product through air pressure, which greatly slows down the work efficiency, and therefore a plastic bottle leak detection device is needed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a plastic bottle leak detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A plastic bottle leak detection device, comprising a rotating conveying frame, a first belt and a second belt are sleeved on the surface of the rotating conveying frame, a fixed plate is fixedly connected to the surface of the rotating conveying frame, an adjusting plate is slidably connected to the inner wall of the fixed plate, a first electric telescopic rod is fixedly connected to the upper surface of the adjusting plate, a sealing pressure head is fixedly connected to the output end of the first electric telescopic rod, a gas conveying pipe is fixedly connected to the inner wall of the sealing pressure head, a gas pressure detector is fixedly connected to the surface of the gas conveying pipe, and a sensing push mechanism is fixedly connected to the surface of the rotating conveying frame.

[0007] The sensing push mechanism comprises a U-shaped plate fixedly connected to the surface of the rotating conveying frame, a laser emitter and a laser receiver are fixedly connected to the surface of the U-shaped plate, the positions of the laser emitter and the laser receiver correspond to each other, a second electric telescopic rod is fixedly connected to the surface of the U-shaped plate, and a C-shaped push plate is fixedly connected to the output end of the second electric telescopic rod.

[0008] An H-shaped limiting sleeve is fixedly connected to the surface of the rotating conveying frame, the H-shaped limiting sleeve is installed between the first belt and the second belt to leave a gap between the first belt and the second belt.

[0009] Preferably, a pair of protective fences are fixedly connected to the surface of the rotating conveying frame, a protective plate is rotatably connected to the inner wall of the protective fence away from the fixed plate, and a soft pad is fixedly connected to the surface of the protective plate.

[0010] Preferably, the surface of the guardrail away from the fixed plate side is fixedly connected with a positioning plate, the surface of the positioning plate is fixedly connected with a spring, and one end of the spring is fixedly connected with the surface of the guard plate.

[0011] Preferably, the surface of the rotating conveying frame is fixedly connected with a bearing plate, the surface of the bearing plate is in abutting contact with the inner surfaces of the first belt and the second belt, the surface of the bearing plate is fixedly connected with a stripping inclined plate, and the surface of the fixed plate is fixedly connected with a PLC control panel.

[0012] Preferably, the inner wall of the fixed plate is rotationally connected with a lead screw, and the surface of the lead screw is threadedly connected with the inner wall of the adjusting plate.

[0013] Preferably, the top end of the lead screw penetrates through the upper surface of the fixed plate and is fixedly connected with a hand lever.

[0014] The utility model discloses the beneficial effects are:

[0015] 1. When the laser emitted by the laser emitter is not received by the laser receiver, it is explained that the bottle body blocks the laser, at this time, the bottle body is just corresponding with the position of the C-shaped push plate, the sealing pressure head drops and is extruded and is attached with the bottle mouth position of the plastic bottle, when the air pressure detector detects the pressure, when the pressure is stable, it is explained that the bottle body does not leak, and the plastic bottle leaks, and the electric signal is fed back to the PLC control panel.

[0016] 2. When detecting the leakage, the C-shaped push plate drives the plastic bottle to move, so that the soft gasket is stressed, drives the guard plate to rotate, so that a pair of guard plates are in the open state, and the plastic bottle that leaks falls from the rotating conveying frame through the stripping inclined plate, thereby realizing the plastic product that is not qualified and leaks quickly and automatically. DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is the three-dimensional structure schematic view of the H-shaped limiting sleeve in the utility model;

[0019] Figure 3 It is the sectional three-dimensional structure schematic view of the U-shaped plate in the utility model;

[0020] Figure 4 It is the three-dimensional structure schematic view of the utility model Figure 3 in the enlarged structure schematic view of A.

[0021] In the figure: 1, rotating conveying frame; 2, bearing plate; 3, fixed plate; 4, adjusting plate; 5, air pressure detector; 6, gas conveying pipe; 7, screw rod; 8, PLC control panel; 9, first electric telescopic rod; 10, U-shaped plate; 11, second electric telescopic rod; 12, sealing pressure head; 13, first belt; 14, H-shaped limiting sleeve; 15, second belt; 16, laser receiver; 17, material removing inclined plate; 18, laser emitter; 19, positioning plate; 20, protective plate; 21, spring; 22, soft gasket; 23, hand lever; 24, protective fence; 25, C-shaped push plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Referring to Figures 1-4 A plastic bottle leak detection device, including rotating conveying frame 1, the surface of rotating conveying frame 1 is provided with first belt 13 and second belt 15, the surface of rotating conveying frame 1 is fixedly connected with fixed plate 3, the inner wall of fixed plate 3 is slidably connected with adjusting plate 4, the upper surface of adjusting plate 4 is fixedly connected with first electric telescopic rod 9, the output end of first electric telescopic rod 9 is fixedly connected with sealing pressure head 12, the inner wall of sealing pressure head 12 is fixedly connected with gas conveying pipe 6, the surface of gas conveying pipe 6 is fixedly connected with air pressure detector 5, the surface of rotating conveying frame 1 is fixedly connected with induction material pushing mechanism;

[0024] The induction material pushing mechanism includes U-shaped plate 10 fixedly connected to the surface of rotating conveying frame 1, the surface of U-shaped plate 10 is fixedly connected with laser emitter 18 and laser receiver 16, the positions of laser emitter 18 and laser receiver 16 correspond to each other, the surface of U-shaped plate 10 is fixedly connected with second electric telescopic rod 11, the output end of second electric telescopic rod 11 is fixedly connected with C-shaped push plate 25;

[0025] The surface of rotating conveying frame 1 is fixedly connected with H-shaped limiting sleeve 14, H-shaped limiting sleeve 14 is installed between first belt 13 and second belt 15, for leaving a gap between first belt 13 and second belt 15.

[0026] The utility model discloses a plastic bottle body detection device, including fixed plate 3, the surface of fixed plate 3 is connected with the first electric telescopic handle 9 of adjusting plate 4, the first electric telescopic handle 9 is connected with the sealing pressure head 12 of the first belt 13, the second belt 15 is connected to the sealing pressure head 12, and the sealing pressure head 12 is connected with the laser transmitter 18 and the laser receiver 16.

[0027] The surface of the rotating conveying frame 1 is fixedly connected with a pair of guardrails 24, the inner wall of the guardrail 24 away from the fixed plate 3 is rotatably connected with a guard plate 20, the surface of the guard plate 20 is fixedly connected with a soft pad 22.

[0028] In the utility model, the plastic bottle body is positioned and protected through the pair of guardrails 24, the plastic bottle body is guided through the guard plate 20, and the contacted bottle body is protected through the soft pad 22.

[0029] The surface of the guardrail 24 away from the fixed plate 3 is fixedly connected with a positioning plate 19, the surface of the positioning plate 19 is fixedly connected with a spring 21, and one end of the spring 21 is fixedly connected with the surface of the guard plate 20.

[0030] In the utility model, the positioning plate 19 is arranged to keep the installation and positioning of the spring 21, and the spring 21 is arranged to drive the guard plate 20 to rotate and reset.

[0031] The surface of the rotating conveying frame 1 is fixedly connected with a bearing plate 2, the surface of the bearing plate 2 is in contact with the inner surfaces of the first belt 13 and the second belt 15, the surface of the bearing plate 2 is fixedly connected with a material discharging inclined plate 17, and the surface of the fixed plate 3 is fixedly connected with a PLC control panel 8.

[0032] In the utility model, the inner surfaces of the rotating first belt 13 and the second belt 15 are supported through the bearing plate 2, the plastic bottle pushed out by the C-shaped push plate 25 is discharged through the material discharging inclined plate 17, and the bottle body is supported when being pressed and detected.

[0033] The inner wall of the fixed plate 3 is rotatably connected with a lead screw 7, and the surface of the lead screw 7 is threadedly connected with the inner wall of the adjusting plate 4.

[0034] The utility model discloses, through be provided with screw rod 7, the height of adjusting plate 4 is adjusted to adapt to the adjustment of different bottle body height with screw rod 7 rotation.

[0035] The top end of the screw rod 7 penetrates the upper surface of the fixed plate 3 and is fixedly connected with a hand lever 23.

[0036] In the utility model, the hand lever 23 is arranged, and an operator rotates the hand lever 23 to drive the screw rod 7 to rotate.

[0037] Working principle: when in use, the first belt 13 and the second belt 15 on the rotating conveying frame 1 are rotated by operating the PLC control panel 8, and the H-shaped limiting sleeve 14 ensures that there is a gap between the first belt 13 and the second belt 15; when the plastic bottles on the first belt 13 and the second belt 15 are conveyed to the lower side of the sealing pressure head 12, the first electric telescopic rod 9 is started, the output end of the first electric telescopic rod 9 drives the sealing pressure head 12 to descend and press and fit the bottle opening position of the plastic bottle; air is conveyed in the air conveying pipe 6, the air pressure detector 5 detects the pressure, and when the pressure is stable, it indicates that the bottle body does not leak; after the sealing pressure head 12 is reset, the plastic bottle continues to be conveyed; when the bottle body leaks, the conveying stops at the relative position of the laser emitter 18 and the laser receiver 16, the bottle body blocks the laser emitted by the laser emitter 18 and is not received by the laser receiver 16; at this time, the second electric telescopic rod 11 is started, the output end of the second electric telescopic rod 11 drives the C-shaped push plate 25 to move, the C-shaped push plate 25 pushes the plastic bottle on the first belt 13 and the second belt 15 to move, so that the soft gasket 22 is stressed, the protective plate 20 is rotated, the compression spring 21 is shortened, and a pair of protective plates 20 are in the open state; the plastic bottle leaking air falls from the rotating conveying frame 1 through the stripping inclined plate 17; by the above structure, the unqualified plastic product leaking air is quickly and automatically removed.

[0038] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A plastic bottle leak testing apparatus comprising a rotating conveyor rack (1), characterized in that, The surface of the rotating conveying frame (1) is provided with a first belt (13) and a second belt (15), the surface of the rotating conveying frame (1) is fixedly connected with a fixed plate (3), the inner wall of the fixed plate (3) is slidably connected with an adjusting plate (4), the upper surface of the adjusting plate (4) is fixedly connected with a first electric telescopic rod (9), the output end of the first electric telescopic rod (9) is fixedly connected with a sealing pressure head (12), the inner wall of the sealing pressure head (12) is fixedly connected with a gas conveying pipe (6), the surface of the gas conveying pipe (6) is fixedly connected with a gas pressure detector (5), and the surface of the rotating conveying frame (1) is fixedly connected with a sensing pushing mechanism. The sensing pushing mechanism comprises a U-shaped plate (10) fixedly connected to the surface of the rotating conveying frame (1), the surface of the U-shaped plate (10) is fixedly connected with a laser emitter (18) and a laser receiver (16), the positions of the laser emitter (18) and the laser receiver (16) correspond to each other, and the surface of the U-shaped plate (10) is fixedly connected with a second electric telescopic rod (11), the output end of the second electric telescopic rod (11) is fixedly connected with a C-shaped push plate (25). The surface of the rotating conveying frame (1) is fixedly connected with an H-shaped limiting sleeve (14), the H-shaped limiting sleeve (14) is installed between the first belt (13) and the second belt (15) to leave a gap between the first belt (13) and the second belt (15).

2. A plastic bottle leak testing device according to claim 1, wherein The surface of the rotating conveying frame (1) is fixedly connected with a pair of guardrails (24), the inner wall of the guardrail (24) away from the fixed plate (3) is rotatably connected with a guard plate (20), and the surface of the guard plate (20) is fixedly connected with a soft pad (22).

3. A plastic bottle leak testing apparatus as defined in claim 2, wherein, The surface of the guardrail (24) away from the fixed plate (3) is fixedly connected with a positioning plate (19), the surface of the positioning plate (19) is fixedly connected with a spring (21), and one end of the spring (21) is fixedly connected with the surface of the guard plate (20).

4. The plastic bottle leak testing device of claim 1, wherein, The surface of the rotating conveying frame (1) is fixedly connected with a bearing plate (2), the surface of the bearing plate (2) is in contact with the inner surfaces of the first belt (13) and the second belt (15), the surface of the bearing plate (2) is fixedly connected with a material removing inclined plate (17), and the surface of the fixed plate (3) is fixedly connected with a PLC control panel (8).

5. The plastic bottle leak testing device of claim 1, wherein, The inner wall of the fixed plate (3) is rotatably connected with a lead screw (7), and the surface of the lead screw (7) is threadedly connected with the inner wall of the adjusting plate (4).

6. A plastic bottle leak testing apparatus as defined in claim 5, wherein, The top end of the lead screw (7) penetrates through the upper surface of the fixed plate (3) and is fixedly connected with a hand lever (23).