A defective capping detection device

Abstract

The present invention provides a capping defect detection device, which is installed on the production line of bottled products and is used to detect bottle caps. The device includes: a bracket on which a first limit block is fixed, and the bracket is used to be vertically fixed on the production line; a lifting mechanism which is arranged on the bracket and the lifting height of the lifting mechanism is higher than the height of the standing bottles on the conveyor belt of the production line; a tension spring, the first end of which is fixed on the lifting mechanism; a limit mechanism for realizing precise positioning and detection of the bottle caps. The capping defect detection device of the embodiment of the present invention not only has a simple structure, but also can accurately detect the bottles with capping defects on the production line, realizing the automatic detection of capping defects, improving the production efficiency, ensuring that the products with capping defects can be timely discovered, and improving the production quality.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and particularly to a device for detecting defective capping. Background Art

[0002] Processing technology refers to the engineering and methods of processing raw materials into semi-finished products or processing raw materials and semi-finished products into products, which includes the processing steps or the entire process required to transform raw materials into finished products and finally into consumer goods. In the processing technology of some bottled foods, the packaging requirements of products are very strict. Not only the food grade of packaging materials needs to be considered, but also the sealing performance of bottles needs to be considered. In an existing method, the airtightness test of the lid after being screwed onto the bottle is detected by sampling inspection. However, sampling inspection is only a matter of probability and cannot achieve full coverage, and manual sampling inspection is time-consuming and laborious. Summary of the Invention

[0003] In view of this, the present invention provides a device for detecting defective capping, which can complete the detection of defective capping products on the production line, and the detection is convenient and fast.

[0004] To solve the above technical problems, the present invention provides a device for detecting defective capping.

[0005] According to an embodiment of the present invention, the device for detecting defective capping is installed on the production line of bottled products and is used to detect the bottle caps. The device includes:

[0006] A bracket, on which a first limiting block is fixed, and the bracket is used for being vertically fixed on the production line;

[0007] A lifting mechanism, which is arranged on the bracket, and the lifting height of the lifting mechanism is higher than the height of the standing bottles on the conveyor belt of the production line;

[0008] A tension spring, the first end of which is fixed on the lifting mechanism;

[0009] A limiting mechanism, which includes:

[0010] A reference plate, which is slidably connected with the bracket, and the reference plate is fixedly connected with the second end of the tension spring. Under the action of the tension spring, the reference plate moves along the vertical direction of the bracket, and the first limiting block on the bracket is used to limit the sliding height of the reference plate in the vertical direction of the bracket;

[0011] A limiting component, which includes a second limiting block, and there is a first distance between the second limiting block and the reference plate, and the first distance is used to match the distance between the upper surface and the lower surface of the bottle cap;

[0012] A photoelectric inductor, which is used to detect whether the second limit block contacts the upper surface of the bottle cap.

[0013] Preferably, the lifting mechanism includes:

[0014] A fixed seat, which is fixed on the bracket;

[0015] A sliding rod, which is fixed on the fixed seat;

[0016] A sliding plate, which is provided with a mounting hole. One end of the sliding rod passes through the mounting hole, and the first end of the tension spring is fixedly connected to the sliding plate;

[0017] A driving assembly, the driving end of which is connected to the sliding plate and is used to drive the sliding plate to move up and down relative to the sliding rod.

[0018] Preferably, the driving assembly includes:

[0019] A screw rod, one end of which passes through the threaded hole of the fixed seat and is connected to the sliding plate, and the screw rod is in threaded connection with the fixed seat;

[0020] A driving mechanism, which is connected to the other end of the screw rod and is used to drive the screw rod to move relative to the fixed seat.

[0021] Preferably, the limit assembly further includes:

[0022] A support rod, one end of which is fixed on the reference plate;

[0023] An adjusting rod, which is connected to the support rod. The second limit block is fixedly connected to the adjusting rod, and the adjusting rod is used to adjust the size of the first distance.

[0024] Preferably, the capping defect detection device further includes an auxiliary plate, which is fixed on the bracket, and there is a second distance between the auxiliary plate and the reference plate. The second distance is used to match the bottleneck of the bottle, and the upper surfaces of the auxiliary plate and the reference plate are on the same horizontal plane.

[0025] Preferably, the end face of the reference plate and the front end of the auxiliary plate is an inclined surface, and the inclined surface is used to assist the bottle to move towards the position where the second limit block is located.

[0026] Preferably, the capping defect detection device further includes:

[0027] A controller, which is connected to the photoelectric inductor;

[0028] An alarm, which is connected to the controller and is used to give an alarm when the photosensor detects that the upper surface of the bottle cap contacts the second limit block.

[0029] Preferably, the first limit block is slidably connected to the bracket through a slide rail.

[0030] Preferably, the capping defect detection device further includes a rejection cylinder, which is relatively fixedly arranged with the bracket, and the rejection cylinder is used to reject the bottle to which the bottle cap contacting the second limit block belongs.

[0031] Preferably, the capping defect detection device further includes a receiving platform, which is arranged opposite to the rejection cylinder and is used to receive the rejected bottles.

[0032] The beneficial effects of the above technical solutions of the present invention are as follows:

[0033] According to the capping defect detection device of the embodiment of the present invention, the structure is simple, it can accurately detect the bottles with capping defects on the production line, realizes the automatic detection of capping defects, improves the production efficiency, ensures that the products with capping defects can be discovered in time, and improves the production quality. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of the capping defect detection device of the present invention.

[0035] Reference Signs:

[0036] Capping defect detection device 100;

[0037] Bracket 10; First limit block 11;

[0038] Lifting mechanism 20; Fixed seat 21; Slide bar 22; Slide plate 23; Driving component 24; Screw 241; Driving mechanism 242;

[0039] Tensile spring 30;

[0040] Limiting mechanism 40; Reference plate 41; Limiting component 42; Second limit block 421; Photosensor 422; Support rod 423; Adjusting rod 424; First spacing 43; Second spacing 44; Slide block 45;

[0041] Auxiliary plate 50;

[0042] Alarm 60;

[0043] Rejection cylinder 70;

[0044] Receiving platform 80;

[0045] Bottle 200;

[0046] The bottle cap 300. Specific embodiments

[0047] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0048] First, the capping defect detection device 100 according to the embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0049] As Figure 1 shown, the capping defect detection device 100 according to the embodiments of the present invention is installed on the production line of bottled products for detecting the bottle cap 300, and the device includes a bracket 10, a lifting mechanism 20, a tension spring 30 and a limiting mechanism 40.

[0050] Specifically, a first limiting block 11 is fixed on the bracket 10, and the bracket 10 is used for being vertically fixed on the production line. The structure of the bracket 10 can be adjusted according to the structure of the production line. For example, as Figure 1 shown, the bracket 10 can be H-shaped and straddle the conveyor belt of the production line, and its shape is not limited.

[0051] The lifting mechanism 20 is arranged on the bracket 10, and the lifting height of the lifting mechanism 20 is higher than the height of the standing bottle 200 on the conveyor belt of the production line. The first end of the tension spring 30 is fixed on the lifting mechanism 20. That is to say, when the capping defect detection device 100 is installed on the production line, after the bottle 200 is capped, each product stands on the conveyor belt. At this time, the lifting height of the lifting mechanism 20 should be higher than the height of the cap, so that the spring remains in a stretched state during the subsequent capping detection process.

[0052] As Figure 1As shown, the limit mechanism 40 includes a reference plate 41, a limit component 42, and a photoelectric inductor 422. The reference plate 41 is slidably connected to the bracket 10. Among them, the first limit block 11 and the bracket 10 can be slidably connected through a slide rail and a slider 45, or can be slidably connected by means of a pulley, etc., which is not limited here. And the reference plate 41 is fixedly connected to the second end of the tension spring 30. Under the action of the tension spring 30, the reference plate 41 moves along the vertical direction of the bracket 10. The first limit block 11 on the bracket 10 is used to limit the sliding height of the reference plate 41 in the vertical direction of the bracket 10. The limit component 42 includes a second limit block 421. There is a first distance 43 between the second limit block 421 and the reference plate 41. The first distance 43 is used to match the distance between the upper surface and the lower surface of the bottle cap 300. The photoelectric inductor 422 is correspondingly arranged with the limit component 42 for detecting whether the second limit block 421 contacts the upper surface of the bottle cap 300.

[0053] That is to say, the second limit block 421 can limit the upward sliding height of the tension spring 30, and the tension spring 30 remains in a stretched state in the state to be detected. When detecting the capping condition of the bottle 200, the bottle 200 is conveyed to the position where the reference plate 41 is located. The lower edge of the convex ring on the bottleneck fits with the upper surface of the reference plate 41 under the pulling force of the tension spring 30. Among them, the convex ring refers to the structure that limits the lower edge of the bottle cap 300. Thus, it can be ensured that the detection of each bottle 200 starts from the lower edge of the convex ring, that is, the capping condition can be accurately measured. The first distance 43 can ensure that the upper surface of the bottle cap 300 is located below the second limit block 421, but the bottle cap 300 does not contact the second limit block 421. Once contact occurs, it will be detected and discovered by the photoelectric inductor 422. Further, it can remind the operator by means of alarm, shutdown, etc. In the embodiment of the present invention, the first distance 43 can be set according to the height of the bottle cap 300 and the allowable error range of the capping of the bottle cap 300 and the bottle 200 to ensure that when the upper surface of the bottle cap 300 contacts the second limit block 421, it indicates poor capping, that is, the capping is not completely screwed in place, or the lid is tilted, etc.

[0054] Therefore, the capping defect detection device 100 according to the embodiment of the present invention not only has a simple structure, but also can accurately detect the bottles 200 with capping defects on the production line, realizing the automatic detection of capping defects, improving the production efficiency, ensuring that the products with capping defects can be discovered in time, and improving the production quality.

[0055] According to an embodiment of the present invention, the lifting mechanism 20 includes a fixed seat 21, a sliding rod 22, a sliding plate 23, and a driving assembly 24. The fixed seat 21 is fixed on the bracket 10, the sliding rod 22 is fixed on the fixed seat 21, the sliding plate 23 is provided with a mounting hole (not shown in the figure), one end of the sliding rod 22 passes through the mounting hole, the first end of the tension spring 30 is fixedly connected to the sliding plate 23, and the driving end of the driving assembly 24 is connected to the sliding plate 23 for driving the sliding plate 23 to move up and down relative to the sliding rod 22. That is to say, by driving the driving assembly 24 to drive the sliding plate 23 to move up and down, the height of the tension spring 30 can be adjusted, so that in the state to be detected, the tension spring 30 can be kept in a stretched state under the action of the first limiting block 11.

[0056] According to an embodiment of the present invention, the driving assembly 24 includes a screw rod 241 and a driving mechanism 242. One end of the screw rod 241 passes through the threaded hole of the fixed seat 21 and is connected to the sliding plate 23, and the screw rod 241 is threadedly connected to the fixed seat 21. The driving mechanism 242 is connected to the other end of the screw rod 241 for driving the screw rod 241 to move relative to the fixed seat 21. That is to say, by rotating the screw rod 241, one end of the screw rod 241 pushes the sliding plate 23 to move up and down, thereby adjusting the height of the tension spring 30. This structure is simple and easy to adjust.

[0057] According to an embodiment of the present invention, the limiting assembly 42 further includes a support rod 423 and an adjusting rod 424. One end of the support rod 423 is fixed on the reference plate 41, the adjusting rod 424 is connected to the support rod 423, the second limiting block 421 is fixedly connected to the adjusting rod 424, and the adjusting rod 424 is used for adjusting the size of the first distance 43. This structure is simple and convenient for adjusting the size of the first distance 43.

[0058] According to some embodiments of the present invention, the capping defect detection device 100 further includes an auxiliary plate 50. The auxiliary plate 50 is fixed on the bracket 10, and there is a second distance 44 between the auxiliary plate 50 and the reference plate 41. The second distance 44 is used to match the bottleneck of the bottle 200, and the upper surfaces of the auxiliary plate 50 and the reference plate 41 are on the same horizontal plane. The auxiliary plate 50 can limit the bottle 200 on both sides opposite to the bottleneck to ensure that the bottle 200 is placed horizontally and improve the detection accuracy.

[0059] In some embodiments, the end face of the reference plate 41 at the front end of the auxiliary plate 50 is an inclined surface, and the inclined surface is used to assist the bottle 200 to move towards the position where the second limiting block 421 is located. Through the setting of the inclined surface, a good guiding effect is exerted on the movement of the bottle 200, which is convenient for the bottle 200 to smoothly reach the horizontal plane position of the reference plate 41.

[0060] In an embodiment of the present invention, the capping defect detection device 100 further includes a controller and an alarm 60. The controller is connected to the photoelectric sensor 422, and the alarm 60 is connected to the controller. When the photoelectric sensor 422 detects that the upper surface of the bottle cap 300 contacts the second limit block 421, an alarm is issued, enabling the operator to timely understand that there is an abnormality in the capping of the bottle 200 and handle it in a timely manner, making it more intelligent.

[0061] According to an embodiment of the present invention, the capping defect detection device 100 further includes a rejection cylinder 70. The rejection cylinder 70 is fixedly arranged relative to the bracket 10. The rejection cylinder 70 is used to reject the bottle 200 to which the bottle cap 300 contacting the second limit block 421 belongs. Specifically, by the transmission speed of the conveyor belt, when detecting a bottle 200 with a defective capping, timing is carried out. For example, after timing for 3 seconds, combined with the transmission speed of the conveyor belt, exactly the bottle 200 with a defective capping moves to the position where the rejection cylinder 70 is located. The cylinder is driven to push the bottle 200 out of the conveyor belt, completing the process of automatically picking out defective products. In addition, the rejection cylinder 70 can also be combined with infrared technology to directly reject the first bottle 200 that appears after the alarm, etc., which is not the only limitation here. During the inspection

[0062] Preferably, in order to facilitate the timely recycling and unified management of defective products, a receiving platform 80 is arranged in the direction where the rejection cylinder 70 pushes out the bottle 200, so that the rejected bottles 200 can be placed uniformly.

[0063] In summary, the capping defect detection device 100 according to the embodiment of the present invention has a simple structure, can accurately detect bottles 200 with defective capping on the production line, realizes the automatic detection of capping defects, improves production efficiency, ensures that products with defective capping can be discovered in a timely manner, and improves the production quality.

[0064] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship also changes accordingly.

[0065] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A capping defect detection device, characterized in that Installed on the production line of bottled products for detecting bottle caps, the device includes: A bracket on which a first limit block is fixed, and the bracket is used to be fixedly erected on the production line; A lifting mechanism arranged on the bracket, and the lifting height of the lifting mechanism is higher than the height of the standing bottles on the conveyor belt of the production line; A tension spring, the first end of which is fixed on the lifting mechanism; A limiting mechanism, which includes: A reference plate slidably connected to the bracket, and the reference plate is fixedly connected to the second end of the tension spring. Under the action of the tension spring, the reference plate moves along the vertical direction of the bracket. The first limit block on the bracket is used to limit the sliding height of the reference plate in the vertical direction of the bracket, and the first limit block is slidably connected to the bracket through a slide rail; A limiting component, which includes a second limit block. There is a first distance between the second limit block and the reference plate, and the first distance is used to match the distance between the upper surface and the lower surface of the bottle cap; A photoelectric inductor correspondingly arranged with the limiting component for detecting whether the second limit block contacts the upper surface of the bottle cap; An auxiliary plate fixed on the bracket, and there is a second distance between the auxiliary plate and the reference plate. The second distance is used to match the bottleneck of the bottle, and the upper surfaces of the auxiliary plate and the reference plate are on the same horizontal plane; The second limit block can limit the upward sliding height of the tension spring, and the tension spring remains in a stretched state in the state to be detected. When detecting the capping situation of the bottle, the bottle is conveyed to the position where the reference plate is located. The lower edge of the convex ring on the bottleneck fits with the upper surface of the reference plate under the pulling force of the tension spring. Herein, the convex ring refers to the structure that limits the lower edge of the bottle cap; ensuring that the detection of each bottle starts from the lower edge of the convex ring can accurately measure the capping situation.

2. The gland defect detection device according to claim 1, characterized in that, The lifting mechanism includes: A fixed seat fixed on the bracket; A slide bar fixed on the fixed seat; A slide plate provided with a mounting hole. One end of the slide bar passes through the mounting hole, and the first end of the tension spring is fixedly connected to the slide plate; A driving component, the driving end of which is connected to the slide plate for driving the slide plate to move up and down relative to the slide bar.

3. The gland defect detection device according to claim 2, wherein, The driving component includes: A screw rod, one end of which passes through the threaded hole of the fixed seat and is connected to the slide plate, and the screw rod is threadedly connected to the fixed seat; A driving mechanism connected to the other end of the screw rod for driving the screw rod to move relative to the fixed seat.

4. The gland defect detection device according to claim 1, wherein The limiting component further includes: A support rod, one end of which is fixed on the reference plate; An adjusting rod connected to the support rod, the second limit block is fixedly connected to the adjusting rod, and the adjusting rod is used to adjust the size of the first distance.

5. The gland defect detection device according to claim 1, wherein, The end face of the front end of the reference plate and the auxiliary plate is an inclined surface, and the inclined surface is used to assist the bottle to move towards the position where the second limiting block is located.

6. The capping defect detection device according to claim 1, characterized in that, It further includes: A controller, which is connected to the photoelectric inductor; An alarm, which is connected to the controller and is used to issue an alarm when the photoelectric inductor detects that the upper surface of the bottle cap contacts the second limiting block.

7. The gland defective detection device according to claim 1, wherein It further includes an ejection cylinder, which is fixedly arranged relative to the bracket, and the ejection cylinder is used to eject the bottle to which the bottle cap contacting the second limiting block belongs.

8. The gland defect detection device according to claim 7, wherein, It further includes: A receiving platform, which is arranged opposite to the ejection cylinder and is used to receive the ejected bottles.

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