Device for detecting defects of bottle body of bottle blank of plastic bottle

Abstract

The utility model belongs to the field of plastic processing, and discloses a plastic bottle preform body defect detection device, which comprises a detection table for inversely buckling a bottle preform, a luminous body is detachably arranged on the detection table along the height direction, a projection screen is arranged on one side of the detection table along the height direction, and the projection screen is arranged on one side, capable of emitting light, of the luminous body. According to the utility model, a worker can easily find impurities or bubbles on the bottle body, the detection precision and the detection efficiency are improved, and the device is suitable for defect detection of the light-transmitting bottle body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of plastic processing, specifically a kind of plastic bottle blank bottle body defect detection device. BACKGROUND

[0002] In the production process of plastic bottle, blank as semi-finished product, need to experience injection molding stage, this stage utilizes injection molding machine to be injected into mould under specific temperature and pressure Forming. After that, blank will enter blow molding process, finally change into complete plastic bottle. For the blank that has been made, quality detection is a crucial link, the main purpose is to check whether its side wall exists impurity or bubble.

[0003] However, the current generally adopted manual detection method is more original: blank is placed on luminous workbench, or utilize light source to directly irradiate blank, then rely on the naked eye of staff to observe. This method not only highly depends on the vision condition of detection personnel, and there is difficulty in identifying tiny impurity or bubble, to lead to the accuracy of detection result is not high. In addition, in order to protect the vision of detection personnel, the brightness of light source used by existing equipment is often limited to low level, which undoubtedly further weakens the accuracy of detection, so that the overall use effect is not satisfactory. SUMMARY

[0004] To solve the above deficiencies in the prior art, the utility model aims at providing a kind of plastic bottle blank bottle body defect detection device, to reach the purpose of improving detection precision and detection efficiency.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a kind of plastic bottle blank bottle body defect detection device, including the detection table for inverted neck bottle embryo, the light-emitting body along the height direction is detachably provided on the detection table, one side of the detection table is provided with the projection screen along the height direction, and the projection screen is arranged on the side where the light-emitting body can emit light.

[0006] As a limitation of the utility model: the light-emitting body is a lamp tube, and the light emitted by the lamp tube is unilateral light.

[0007] As a limitation of the utility model: the angle between the two edges of the light emitted by the lamp tube is less than 180 °.

[0008] As a limitation of the utility model: the detection table is fixedly provided with a lamp holder, and the lamp tube is detachably arranged on the lamp holder.

[0009] As a limitation of the utility model: the side wall of the detection table is fixedly provided with an extension rod extending away from the lamp tube end, and the projection screen is detachably fixed to the end of the extension rod away from the detection table.

[0010] As a limitation of the utility model: the projection screen comprises a frame body and a screen cloth fixed in the frame body.

[0011] As a limitation of the utility model: one of a slot or a plug is fixed at the bottom of the frame body, and the other of the slot or the plug is fixed at the end of the telescopic rod away from the detection table.

[0012] As a limitation of the utility model: the screen cloth comprises an arc-shaped section and plane sections located at both sides of the arc-shaped section.

[0013] As a limitation of the utility model: the telescopic rod comprises a fixed section with a hollow structure fixed to the side wall of the detection table, a telescopic section slidingly sleeved in the fixed section, and an adjusting bolt threadedly connected to the top wall of the fixed section to fix the position of the telescopic section.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model is provided with a luminous body and a projection screen, the bottle blank is reversely buckled on the luminous body during use, the light passing through the bottle blank can be projected on the projection screen, the color of the spot formed on the projection screen is lighter or darker due to the different reflection degrees of impurities or bubbles to light than the normal state of the bottle body, so that the staff can easily find the impurities or bubbles, the detection precision and efficiency are improved, the detection personnel can rotate the bottle blank by one round to detect the whole bottle blank, the projection screen and the lamp tube are adjustable in spacing, the device can be applied to bottle blanks of different specifications, has high applicability, the projection screen is detachably arranged, and is convenient to store.

[0016] In conclusion, the utility model can make the staff easily find the impurities or bubbles of the bottle body, improve the detection precision and efficiency, and is suitable for the defect detection of the light-transmitting bottle body. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further and specifically described in connection with the drawings and specific embodiments.

[0018] Figure 1 It is a perspective view of the utility model embodiment;

[0019] Figure 2 It is another perspective view of the utility model embodiment from another angle.

[0020] In the figure: 1-detection table, 2-lamp tube, 3-lamp holder, 4-telescopic rod, 41-fixed section, 42-telescopic section, 43-adjusting bolt, 44-plug, 5-projection screen, 51-frame body, 52-screen cloth. DETAILED DESCRIPTION

[0021] The preferred embodiments of the utility model are described below in combination with the drawings. It should be understood that the plastic bottle blank body defect detection device described herein is a preferred embodiment, which is used only for illustrating and explaining the utility model and does not constitute a limitation on the utility model.

[0022] The words of orientation such as "up", "down", "left", "right" and the positional relationship in the utility model are based on the orientation relationship of the drawings of the utility model specification, which are only used for facilitating the description of the utility model and simplifying the description, and do not indicate or imply that the device or element must have a specific orientation, a specific orientation structure and operation, so it cannot be understood as a limitation on the content protected by the utility model.

[0023] The embodiment shown in the drawing is a plastic bottle blank body defect detection device, which comprises a detection table 1 for inverted bottle embryo, and a light-emitting body is detachably arranged on the detection table 1 along the height direction. Figure 1 Figure 2 The detection table 1 is provided with a projection screen 5 along the height direction on one side, and the projection screen 5 is arranged on the side where the light-emitting body can emit light.

[0024] Specifically, the top view direction of the detection table 1 is a "convex" structure, the light-emitting body in the embodiment is a lamp tube 2, and a relatively thin size lamp tube 2 should be selected so that the bottle mouth can be sleeved thereon. The relatively narrow part of the "convex" structure is fixedly provided with a lamp holder 3 matched with the light, the lamp tube 2 is detachably arranged on the lamp holder 3, and the sidewall of the narrower end of the detection table 1 is connected with a plug-in head through a line to supply power to the lamp tube 2. The light emitted by the lamp tube 2 in the embodiment is single-sided light, and further, the angle between the two edges of the light emitted by the lamp tube 2 is less than or equal to 180° from the top view direction. In this way, the light can be illuminated to the projection screen 5 as much as possible, avoiding the light from illuminating the detection personnel, which is conducive to the detection personnel to observe the projection screen 5 carefully, and can also protect the vision of the detection personnel.

[0025] ​The side wall of the wide end of the detection table 1 is fixed with two telescopic rods 4 which are parallel to each other and extend away from the end of the lamp 2. The projection screen 5 is detachably fixed to the end of the telescopic rod 4 away from the detection table 1. The telescopic rod 4 includes a fixed segment 41 fixed to the side wall of the detection table 1. The fixed segment 41 is a rectangular rod with a hollow structure. A telescopic segment 42 which is matched with the fixed segment 41 is slidably sleeved in the fixed segment 41. By sliding the telescopic segment 42 in the fixed segment 41, the distance between the projection screen 5 and the lamp 2 can be adjusted, so that the device can be adapted to different sizes of bottle blanks. At the same time, by adjusting the distance between the projection screen 5 and the lamp 2, the magnification of the projection can be adjusted. Further, the top wall of the fixed segment 41 is threaded with an adjusting bolt 43. By screwing the adjusting bolt 43 against the top wall of the telescopic segment 42, the position of the telescopic segment 42 can be fixed. Of course, the telescopic rod 4 can also use other telescopic rod structures in the prior art as long as it can adjust the distance between the projection screen 5 and the lamp 2.

[0026] The projection screen 5 includes a frame 51 and a screen cloth 52 fixed in the frame 51. The frame 51 is made of hard material and provides support for the screen cloth 52. From the top view, the frame 51 includes an arc segment with the lamp 2 as the center, and straight line segments integrally connected to both ends of the arc segment, so that the screen cloth 52 includes an arc segment and plane segments on both sides of the arc segment. Figure 2 As shown in the drawings, the bottom of the frame 51 is provided with a slot, and the end of the telescopic rod 4 away from the detection table 1 is fixed with an upwardly arranged plug 44 matched with the slot. The detachable plug-in connection between the projection screen 5 and the telescopic rod 4 can be realized through the slot and the plug 44, which is convenient for the storage of the device. Of course, a slot can also be provided on the telescopic rod 4, and a plug 44 can be provided at the bottom of the frame 51, as long as the detachable connection between the projection screen 5 and the telescopic rod 4 can be realized. The structure of the slot and the plug 44 is prior art, which will not be described here.

[0027] When using the embodiment, the plug is connected to the power supply, the lamp 2 is turned on to make the lamp 2 emit light, the bottle blank to be detected is invertedly sleeved on the lamp 2, and the bottle blank is manually rotated for one revolution. By observing whether a lighter or darker spot is formed in the projection of the bottle blank on the projection screen 5, whether the bottle body of the bottle blank has defects can be detected.

Claims

1. A plastic bottle preform body defect detection apparatus, characterized by: The detection table for detecting the inverted bottle embryo is provided with a light emitter in the height direction, and a projection screen in the height direction is arranged on one side of the detection table.

2. The apparatus for detecting defects in the body of a plastic bottle preform according to claim 1, characterized in that: The light emitter is a lamp tube, and the light emitted by the lamp tube is one-sided light.

3. A device for detecting defects in the body of a plastic bottle preform according to claim 2, characterized in that: The angle between the two edges of the light emitted by the lamp tube is less than 180°.

4. The apparatus for detecting defects in the body of a plastic bottle preform according to claim 3, wherein: A lamp holder is fixed on the detection table, and the lamp tube is detachably arranged on the lamp holder.

5. The device for detecting defects of a plastic bottle blank body according to any one of claims 1 to 4, characterized in that: A telescopic rod extending away from the lamp tube is fixed on the side wall of the detection table, and the projection screen is detachably fixed on the end of the telescopic rod away from the detection table.

6. A device for detecting defects in the body of a plastic bottle preform according to claim 5, characterized in that: The projection screen comprises a frame and a screen cloth fixed in the frame.

7. A device for detecting defects in the body of a plastic bottle preform according to claim 6, characterized in that: One of a slot and a plug is fixed on the bottom of the frame, and the other of the slot and the plug is fixed on the end of the telescopic rod away from the detection table.

8. A device for detecting defects in the body of a plastic bottle preform according to claim 7, characterized in that: The screen cloth comprises an arc-shaped section and plane sections on both sides of the arc-shaped section.

9. A device for detecting defects in the body of a plastic bottle preform according to claim 5, characterized in that: The telescopic rod comprises a fixed section with a hollow structure fixed on the side wall of the detection table, a telescopic section slidingly sleeved in the fixed section, and an adjusting bolt threadedly connected to the top wall of the fixed section to fix the position of the telescopic section.

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