A PET empty bottle detection equipment

Abstract

The utility model discloses a PET empty bottle detection device, comprising a bottle mouth defect detection component, a bottle bottom defect detection component and a defective product rejection component. The empty bottle detection device of the utility model detects defects of PET empty bottles in the bottle blowing stage, effectively reducing the number of defective PET empty bottles flowing into the back-end canning process, thereby reducing the waste of raw materials.

Description

Technical Field

[0001] The utility model relates to the field of bottle detection, in particular to the field of appearance detection of empty PET bottles. Background Art

[0002] In recent years, packaging technology in the food, medicine, cosmetics and other industries has developed rapidly, and manufacturing companies have higher and higher requirements for product packaging quality. PET empty bottles are increasingly widely used as packaging. However, in the production process, PET empty bottles will inevitably have defects such as broken bottle mouths, cracks, and bottom deformation, which directly or indirectly lead to unqualified final products and bring serious losses to companies. Detecting and removing defective empty bottles before canning can greatly reduce this part of the loss. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings in the prior art, it is desired to provide a device with a simple structure that can effectively detect defects in PET empty bottles during the blowing stage, effectively reduce the number of defective bottles flowing into the back-end canning process, thereby reducing the waste of raw materials.

[0004] The utility model provides a PET empty bottle detection device, including a bottle mouth defect detection component, a bottle bottom defect detection component and a defective product rejection component;

[0005] The bottle mouth defect detection component is arranged on the upper side of the second star wheel of the on-site bottle blowing equipment, and is used to detect the defects of the bottle mouth of the empty PET bottle;

[0006] The bottle bottom defect detection component is installed on the bottle blowing equipment, distributed on the upper and lower sides of the second star wheel, and is used to detect the defects of the bottom of the empty PET bottle;

[0007] The defective product rejection component is arranged above the second star wheel and is used to reject defective PET empty bottles.

[0008] As a further improvement of the present invention, the bottle mouth defect detection component includes a first mounting frame located on one side above the second star wheel, a first detection box is fixedly arranged at the bottom end of the first mounting frame, a first detection window is provided at the bottom of the first detection box located above the PET empty bottle, a semi-reflective glass is arranged above the first detection window in the first detection box, a high-brightness light source is arranged above the semi-reflective glass in the first detection box, and a bottle mouth detection camera is arranged on the reflection path of the PET empty bottle of the semi-reflective glass in the first detection box.

[0009] As a further improvement of the present invention, the bottle bottom defect detection component includes a second mounting frame fixed on one side above the second star wheel, a second detection box is fixedly arranged at the bottom end of the second mounting frame, a second detection window is opened at the bottom of the second detection box and is located above the PET empty bottle, a bottle bottom defect detection camera is arranged in the second detection box and is located above the second detection window, and a backlight source is fixedly arranged below the bottom of the PET empty bottle and is located directly below the second detection window.

[0010] As a further improvement of the present invention, the defective product rejection assembly includes a cylinder fixedly arranged below the second star wheel, and the telescopic end of the cylinder faces radially outward along the second star wheel and is fixedly connected to a rejection push plate.

[0011] As a further improvement of this product, a sensor assembly is provided on the side above the second star wheel on the on-site bottle blowing equipment to detect the position of the empty PET bottle; the sensor assembly is provided on the upstream side of the bottle mouth defect detection assembly and the bottle bottom defect detection assembly where the second star wheel rotates; the sensor assembly includes a third mounting frame fixedly provided on one side above the second star wheel, and an infrared sensor is provided at the bottom end of the third mounting frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The PET empty bottle detection equipment of the utility model comprises a bottle mouth defect detection component, a bottle bottom defect detection component and a defective product rejection component, which are all arranged on the on-site bottle blowing equipment, thereby realizing the online detection of PET empty bottles. The bottle mouth of the PET empty bottle is detected by the bottle mouth defect detection component, and the bottle bottom of the PET empty bottle is detected by the bottle bottom defect detection component. After the defective PET empty bottle is detected and identified, it rotates to the defective product rejection component with the second star wheel of the on-site bottle blowing equipment, and the defective product rejection component directly rejects it, thereby preventing the defective PET empty bottle from entering the canning process, thereby reducing the waste of raw materials, and thus reducing production costs.

[0014] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the PET empty bottle detection equipment;

[0017] Figure 2It is a structural schematic diagram of a bottle mouth defect detection component;

[0018] Figure 3 is a schematic diagram of the internal structure of the first detection box;

[0019] Figure 4 It is a structural schematic diagram of a bottle bottom defect detection component;

[0020] Figure 5 is a schematic diagram of the internal structure of the second detection box;

[0021] Figure 6 This is a schematic diagram of the structure of the defective product rejection component.

[0022] Numbers in the figure: 1. Bottle mouth defect detection component; 2. Bottle bottom defect detection component; 3. Defective product rejection component; 4. Sensor component; 5. On-site bottle blowing equipment; 6. PET empty bottle;

[0023] 11. First mounting frame; 12. First detection box; 13. Semi-reflective glass; 14. High-brightness light source; 15. Bottle mouth detection camera;

[0024] 21. Second mounting frame; 22. Second detection box; 23. Bottle bottom detection camera; 24. Backlight source;

[0025] 31. Cylinder; 32. Removal push plate;

[0026] 41. a third mounting frame; 42 an infrared sensor;

[0027] 51. First star wheel; 52. Second star wheel. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Please refer to Figure 1 to Figure 6 , an embodiment of the utility model provides a PET empty bottle detection device, including a bottle mouth defect detection component, a bottle bottom defect detection component and a defective product rejection component;

[0031] The bottle mouth defect detection component 1 is arranged on one side above the second star wheel 52 of the on-site bottle blowing equipment 5, and is used to detect defects of the bottle mouth of the empty PET bottle 6;

[0032] The bottle bottom defect detection component 2 is arranged on the on-site bottle blowing equipment 5, distributed on the upper and lower sides of the second star wheel 52, and is used to detect the defects of the bottom of the empty PET bottle 6;

[0033] The defective product rejection assembly 4 is arranged above the second star wheel 52 and is used for rejecting defective empty PET bottles 6 .

[0034] In this embodiment, when the on-site bottle blowing equipment 5 produces the PET empty bottles 6, the PET preforms are blown on the first star wheel 51 of the on-site bottle blowing equipment 5, and after the PET empty bottles 6 are formed, they are transferred to the second star wheel 52. The mouth of the PET empty bottles 6 is detected by the bottle mouth defect detection component 1, and the bottom of the PET empty bottles 6 is detected by the bottle bottom defect detection component 2. After the defective PET empty bottles 6 are detected and identified, they are rotated to the defective product rejection component 3 along with the second star wheel 52, and the defective product rejection component 3 directly rejects them.

[0035] The detection device of the present application realizes the online detection of the empty PET bottles 6, thereby preventing the defective empty PET bottles 6 from entering the canning process, thereby reducing the waste of raw materials and lowering the production cost.

[0036] In a preferred embodiment, if Figure 1 to Figure 3 As shown, the bottle mouth defect detection component 1 includes a first mounting frame 11 located on one side above the second star wheel 52, a first detection box 12 is fixedly installed at the bottom end of the first mounting frame 21, a first detection window is provided at the bottom of the first detection box 12 located above the PET empty bottle 6, a semi-reflective glass 13 is provided above the first detection window in the first detection box 12, a high-brightness light source 14 is provided above the semi-reflective glass 13 in the first detection box 12, and a bottle mouth detection camera 15 is provided on the reflection path of the PET empty bottle 6 of the semi-reflective glass 13 in the first detection box 12.

[0037] In this embodiment, the bottle mouth defect detection component 1 detects bottle mouth defects, such as notches and cracks, and the product is reflected to the bottle mouth detection camera 15 through the semi-reflective glass 13. The bottle mouth detection camera 15 takes a picture of the product, and the high-brightness light source 14 illuminates the tested product, thereby increasing the brightness of the bottle mouth and making the detection clearer.

[0038] In a preferred embodiment, if Figure 1 , Figure 4 , Figure 5As shown, the bottle bottom defect detection component 2 includes a second mounting frame 21 fixed to one side above the second star wheel 52, a second detection box 22 is fixedly arranged at the bottom end of the second mounting frame, a second detection window is opened at the bottom of the second detection box 22 located above the PET empty bottle 6, a bottle bottom detection camera 23 is arranged above the second detection window in the second detection box 22, and a backlight source 24 is fixedly arranged below the bottom of the PET empty bottle 6 just below the second detection window.

[0039] In this embodiment, the bottle bottom defect detection component 2 detects bottle bottom defects, such as deformation, the bottle bottom detection camera 23 takes pictures of the product, and the backlight source 24 illuminates the product, which increases the brightness of the bottle bottom and makes the detection clearer.

[0040] In a preferred embodiment, if Figure 6 As shown, the rejecting assembly 3 includes a cylinder 31 fixedly arranged below the second star wheel 52, and the telescopic end of the cylinder 31 faces radially outward along the second star wheel 52 and is fixedly connected to the rejecting push plate 32.

[0041] In this embodiment, the cylinder 31 is used as the power part, which has a small size and a quick response. After the defective PET empty bottles 6 are removed, they can automatically return to their original positions, thereby improving the degree of automation.

[0042] In a preferred embodiment, a sensor assembly 4 is provided on the side of the on-site bottle blowing equipment 5 above the first star wheel 52 for detecting the position of the empty PET bottle 6; the sensor assembly 4 is provided on the upstream side of the bottle mouth defect detection assembly 1 and the bottle bottom defect detection assembly 2 where the first star wheel 52 rotates; the sensor assembly 4 includes a third mounting frame 42 fixedly provided on one side above the second star wheel 52, and an infrared sensor 42 is provided at the bottom end of the third mounting frame 41.

[0043] In this embodiment, the infrared sensor 42 can detect the PET empty bottle 6 and transmit the signal to the bottle mouth defect detection component 1 and the bottle bottom defect detection component 2, ensuring that the bottle mouth detection camera 15 and the bottle bottom detection camera 23 can accurately obtain the image information of the part to be detected of the PET empty bottle 6.

[0044] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PET empty bottle detection device, characterized in that: It comprises a bottle mouth defect detection component (1), a bottle bottom defect detection component (2) and a defective product rejection component (3); The bottle mouth defect detection component (1) is arranged on one side above the second star wheel (52) of the on-site bottle blowing equipment (5) and is used to detect defects on the bottle mouth of the empty PET bottle (6); The bottle bottom defect detection component (2) is arranged on the on-site bottle blowing equipment (5), distributed on the upper and lower sides of the second star wheel (52), and is used to detect defects on the bottom of the empty PET bottle (6); The defective product rejection component (3) is arranged on one side of the bottom of the second star wheel (52) and is used to reject defective PET empty bottles (6).

2. The PET empty bottle detection equipment according to claim 1, characterized in that: The bottle mouth defect detection component (1) comprises a first mounting frame (11) located on one side above the second star wheel (52); a first detection box (12) is fixedly arranged at the bottom end of the first mounting frame (11); a first detection window is provided at the bottom of the first detection box (12) located above the PET empty bottle (6); a semi-reflective glass (13) is arranged above the first detection window in the first detection box (12); a high brightness light source (14) is arranged above the semi-reflective glass (13) in the first detection box (12); and a bottle mouth detection camera (15) is arranged on the reflection path of the PET empty bottle (6) of the semi-reflective glass (13) in the first detection box (12).

3. The PET empty bottle detection equipment according to claim 1, characterized in that: The bottle bottom defect detection assembly (2) comprises a second mounting frame (21) fixed to one side above the second star wheel (52); a second detection box (22) is fixedly arranged at the bottom end of the second mounting frame (21); a second detection window is opened at the bottom of the second detection box (22) above the empty PET bottle (6); a bottle bottom detection camera (23) is arranged above the second detection window in the second detection box (22); and a backlight source (24) is fixedly arranged directly below the second detection window and below the bottom of the empty PET bottle (6).

4. The PET empty bottle detection equipment according to claim 1, characterized in that: The defective product rejection assembly (3) comprises a cylinder (31) fixedly arranged below the second star wheel (52), wherein the telescopic end of the cylinder (31) faces outward in the radial direction of the second star wheel (52) and is fixedly connected to a rejection push plate (32).

5. The PET empty bottle detection equipment according to claim 1, characterized in that: A sensor assembly (4) is provided on one side of the on-site bottle blowing device (5) located above the second star wheel (52) for detecting the position of an empty PET bottle (6); the sensor assembly (4) is provided on the upstream side of the bottle mouth defect detection assembly (1) and the bottle bottom defect detection assembly (2) where the second star wheel (52) rotates; the sensor assembly (4) comprises a third mounting frame (41) fixedly provided on one side above the second star wheel (52), and an infrared sensor (42) is provided at the bottom end of the third mounting frame (41).

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