A bottle bottom defect removal mechanism

Abstract

The invention discloses a bottle bottom defect rejection mechanism, which is used for the rejection process in the process of detecting the bottom of a wide-mouth glass bottle, and is arranged in the process of transporting the glass bottle from the annealing process to the cold end surface coating treatment process. The rejection mechanism comprises a transportation mechanism, a bracket, a lifting frame, a negative pressure tube, a matrix light source, a horizontal moving structure, a projection board, a CDD camera and a control terminal. The bracket is arranged above the transportation mechanism, and the lifting frame is arranged on the bracket. The negative pressure tube comprises a bottom tube, an intermediate connecting tube and an upper tube. A plurality of bottom tubes are arranged, and are arranged at equal intervals on the mesh belt of the transportation mechanism. The upper and lower openings of the bottom tube are connected, and a supporting ring is arranged in the middle. The wide-mouth glass bottle is arranged on the supporting ring, and the intermediate connecting tube can be connected with the bottom tube. The invention realizes the purpose of preliminary detection of the bottom of the wide-mouth glass bottle, and has a good use effect.

Description

Technical Field

[0001] The invention relates to the technical field of glass bottle production equipment, and in particular to a bottle bottom defect removal mechanism. Background Art

[0002] The rejection of unqualified glass bottles is a routine process for unqualified glass bottles after the quality inspection of glass bottles. Unqualified glass bottles will be recycled and reused for re-production. The current rejection process is carried out in conjunction with quality inspection work. For example, after the inspection of Led beam technology (Led detection), Camara detection machine, and comprehensive detection machine, unqualified glass bottles are directly removed. When inspecting the bottom of the bottle, the main thing to deal with is the inspection of stains, foreign matter, damage, and foreign matter on the transparent film at the bottom of the bottle.

[0003] After the glass bottles are blown into molded preforms and annealed, they need to go through glass bottle quality inspection before they can be packaged and stored. Between annealing and quality inspection, there is also a cold end surface coating process. Before the cold end surface coating process, the temperature of the glass bottles is higher than 100°C. The glass bottles are transported upright, that is, the bottom of the bottle is transported at the bottom. During transportation, before the empty bottles enter the empty bottle inspection machine, they must move on the chain, and the chain needs to be sprinkled with lubricant. Therefore, before the empty bottles enter the empty bottle inspection machine, a set of processing methods needs to be established to remove the lubricant on the bottom of the bottle, so as to ensure the normal inspection and avoid mistaking foam for defects. When inspecting the bottom of the bottle, large gaps can be seen with the naked eye, and there is no need to remove them after quality inspection. On the contrary, rejecting unqualified bottles with large gaps on the bottom before the cold end surface coating process can completely reduce the workload of the cold end surface coating process and quality inspection process. In addition, glass bottles with large defects on the bottom are more likely to tip over during transportation, affecting other glass bottles. In particular, in the cold end surface coating process, spraying materials on the surface can easily cause these glass bottles to tip over, eventually causing a large number of glass bottles to be damaged. It is necessary to conduct an initial inspection of the bottom of the glass bottle in advance. However, the glass bottle is 400℃ during annealing, which is very dangerous, the material is unstable, and it is difficult to remove. Conventional methods are not feasible. Summary of the invention

[0004] The object of the present invention is to provide a bottle bottom defect rejection mechanism to solve the problem of initial inspection of the bottle bottom of a smooth-mouth glass bottle.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bottle bottom defect rejection mechanism, the rejection mechanism is used for the rejection process in the bottle bottom detection process of wide-mouth glass bottles, and is arranged in the transportation process of the glass bottle from the annealing process to the cold end surface coating treatment process. The rejection mechanism includes a transportation mechanism, a bracket, a lifting frame, a negative pressure tube, a matrix light source, a horizontal moving structure, a projection board, a CDD camera and a control terminal. The bracket is arranged above the transportation mechanism, and the lifting frame is arranged on the bracket. The negative pressure tube includes a bottom tube, an intermediate connecting tube and an upper tube. There are multiple bottom tubes, and they are arranged at equal intervals on the mesh belt of the transportation mechanism. The upper and lower ends of the bottom tube are connected, and a supporting ring is arranged in the middle. The wide-mouth glass bottle is arranged on the supporting ring, and the intermediate connecting tube can be connected to the bottom tube. , and is sleeved on the outside of the wide-mouth glass bottle, the middle connecting pipe is arranged on the lifting frame to realize lifting, the upper pipe is arranged at the upper end of the middle connecting pipe, and is connected to the outer negative pressure, the upper pipe is provided with a notch on the side, the matrix light source includes a light source and a shell arranged in a ring, the shell can block the notch, the light source is arranged at the bottom of the shell, the horizontal moving structure is arranged on the bottom plate of the lifting frame, and drives the matrix light source to move horizontally, the projection board is arranged at the lower end of the bottom pipe, the CDD camera is facing the projection board, the control terminal receives the photo information of the CDD camera, calculates the number of projection light spots on the projection board that meet the brightness, and when the number of light spots does not match the designed number, controls the horizontal moving device to make the matrix light source disengage from the notch, and the negative pressure tube sucks the glass bottle upward.

[0006] Furthermore, the transport mechanism includes a support, a roller, a mesh belt, and a motor. The roller is mounted on the support, the mesh belt is sleeved on the roller, and the motor drives one of the rollers to rotate.

[0007] Furthermore, the lifting frame includes a cylinder, a guide rod, and a base plate. The cylinder is arranged on a bracket, the guide rod is slidably arranged on the bracket, the base plate is arranged at the bottom end of the guide rod, and the piston end of the cylinder is fixedly connected to the top surface of the base plate.

[0008] Furthermore, the horizontal moving structure includes an electric push rod, a connecting rod and a jacket, the jacket is arranged outside the notch, the connecting rod is fixedly connected to the jacket, and the electric push rod is fixedly connected to the connecting rod.

[0009] Technical effects and advantages of the present invention:

[0010] The present application solves the problem of initial inspection of the bottom of the bottle between the annealing process of the glass bottle and the cold end surface coating treatment process. The present application forms a closed space through the intermediate connecting tube and the bottom tube after docking, and directs a laser beam to the bottom of the bottle through a matrix light source. The laser beam passes through the bottom of the bottle, and the bottom of the bottle is a convex mirror. In this way, the laser beam is relatively concentrated and can fall onto the projection board. The number of photoelectrics can be determined by the CDD camera, and the number can be used to determine whether there is a gap in the bottom of the bottle. The operation is simple. When there is a large gap, the horizontal moving structure moves the matrix light source out, and the negative pressure takes out the glass bottle, thereby achieving the purpose of rejection and solving the problem of high-temperature glass bottle rejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the present invention.

[0012] Figure 2 It is a front view of the present invention.

[0013] Figure 3 This is a schematic diagram of the matrix light source of the present invention being arranged in the upper tube.

[0014] Figure 4 FIG. 4 is a schematic diagram of a light spot on a projection board according to the present invention.

[0015] In the figure: transport mechanism-1, bracket-2, lifting frame-3, negative pressure tube-4, matrix light source-5, horizontal moving structure-6, projection board-7, CDD camera-8, support-9, roller-10, mesh belt-11, motor-12, cylinder-13, guide rod-14, bottom plate-15, bottom tube-16, middle connecting tube-17, upper tube-18, supporting ring-19, notch-20, light source-21, shell-22, electric push rod-23, connecting rod-24, jacket-25. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The present invention provides a bottle bottom defect rejection mechanism as shown in the attached figure, the rejection mechanism is used for the rejection process in the bottle bottom detection process of wide-mouth glass bottles, and is arranged in the transportation process of the glass bottle annealing process to the cold end surface coating treatment process. The rejection mechanism includes a transportation mechanism 1, a bracket 2, a lifting frame 3, a negative pressure tube 4, a matrix light source 5, a horizontal moving structure 6, a projection board 7, a CDD camera 8 and a control terminal. The bracket 2 is arranged above the transportation mechanism 1, and the transportation mechanism 1 includes a support 9, a roller 10, a mesh belt 11, and a motor 12. The roller 10 is mounted on the support 9, and the mesh belt 11 is sleeved on the roller 10. The motor 12 drives one of the rollers 10 to rotate, the lifting frame 3 is arranged on the bracket 2, and the lifting frame 3 includes a cylinder 13, a guide rod 14, and a bottom plate 15. The cylinder 13 is arranged on the bracket 2, and the guide rod 14 is slidably arranged on the bracket 2, and the bottom plate 15 is arranged at the bottom end of the guide rod 14. The piston end of the cylinder 13 is fixedly connected to the top surface of the bottom plate 15. The negative pressure pipe 4 includes a bottom pipe 16, an intermediate connecting pipe 17 and an upper pipe 18. There are multiple bottom pipes 16, and they are arranged on the mesh belt 11 of the transport mechanism 1 at equal intervals. The upper and lower openings of the bottom pipe 16 are connected, and a The supporting ring 19, the wide-mouth glass bottle is arranged on the supporting ring 19, the intermediate connecting pipe 17 can be connected with the bottom pipe 16, and is sleeved on the outside of the wide-mouth glass bottle, the intermediate connecting pipe 17 is arranged on the lifting frame 3 to achieve lifting, and is specifically arranged on the bottom plate 15, the upper pipe 18 is arranged at the upper mouth of the intermediate connecting pipe 17, and is connected to the negative pressure of the outside, the upper pipe 18 has a notch 20 on the side, the matrix light source 5 includes a light source 21 arranged in a ring shape, and a shell 22, the shell 22 can block the notch 20, the light source 21 is arranged at the bottom of the shell 22, the horizontal moving structure 6 is arranged on the bottom plate 15 of the lifting frame 3, and Drive the matrix light source 5 to move horizontally, the projection plate 7 is arranged at the lower end of the bottom tube 16, the CDD camera 8 is facing the projection plate 7, the control terminal receives the photo information of the CDD camera 8, calculates the number of projection light spots that meet the brightness on the projection plate 7, and when the number of light spots does not match the designed number, controls the horizontal moving device to make the matrix light source disengage from the notch 20, and the negative pressure tube 4 sucks the glass bottle upwards, the horizontal moving structure 6 includes an electric push rod 23, a connecting rod 24 and a jacket 25, the jacket 25 is arranged outside the notch 20, the connecting rod 24 is fixedly connected to the outer shell 22, and the electric push rod 23 is fixedly connected to the connecting rod 24.

[0018] Working principle:

[0019] The glass bottle that has just been annealed is placed on the supporting ring 19. There is a gap between the bottom tube 16 and the glass bottle, and there is a distance between the bottom of the glass bottle and the projection board 7. In order to facilitate the detection of different glass bottles, the diameter of the negative pressure tube 4 can be changed, and the length of the bottom tube 16 can be changed, that is, the distance between the supporting ring 19 and the projection board 7 can be adjusted. When a row of glass bottles reaches the detection station, the cylinder 13 is turned on, the bottom plate 15 is lowered, and the middle connecting tube 17 is sleeved on the outside of the glass bottle and docked with the bottom tube 16. At this time, the negative pressure tube 4 between the projection board 7 and the light source 21 is a closed space, and the light source 21 is a laser. The circularly arranged laser beam directly irradiates the bottom of the glass bottle. Because the bottom of the bottle is a convex mirror, the refracted light is relatively concentrated. According to the debugging, the photoelectric bright spot quantity and brightness generated by glass bottles of different specifications on the projection board 7 are different. Because the above-mentioned negative pressure tube 4 is a closed space, there is no external light source, only a few laser beams are used as light sources, there is no interference, and the result of a single detection is highly accurate. The diameter of the upper mouth of the wide-mouth glass bottle is not much different from the diameter of the bottom of the bottle. Only the wide-mouth glass bottle can be equipped with multiple laser light sources. Most of the bottom of the glass bottle is a convex mirror, which can relatively concentrate the laser beam. In this embodiment, it is required that the light spots of these light beams on the projection plate 7 are separated, so that it can be clearly seen that there are several light spots.

[0020] According to the different specifications of the glass bottles, this embodiment is debugged to record the brightness of the light spot on the projection board 7 after the laser beam is refracted through the bottom of each specification of the glass bottle, and the number of lasers is determined. During the specific operation, the convex mirror structure ensures that the light spot can fall on the projection board 7. When the light spot count meets the brightness, when there is a gap in the bottom of the bottle, the refracted light spot is scattered and cannot fall on the projection board 7 or the brightness is not enough, which can quickly reflect the quality of the bottom of the glass bottle.

[0021] In this embodiment, the housing 22 is made of high temperature resistant material, and an inert gas protection is provided outside the laser light source.

[0022] In this embodiment, after being separated from the notch, the housing 22 can block the passage for the matrix light source 5 to move out, ensuring that the negative pressure tube 4 is closed, and the glass bottle moves upward along the negative pressure tube 4 .

[0023] In this embodiment, the bottom of the glass bottle is divided into several parts by the circular light source 21. If the refracted light spot of a certain part does not exist, it is determined that the glass bottle is unqualified and is rejected by negative pressure.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottle bottom defect rejection mechanism, characterized in that: The rejection mechanism is used for detecting the bottom of wide-mouth glass bottles. The rejecting process in the process is arranged in the process of transporting the glass bottle annealing process to the cold end surface coating treatment process. The rejecting mechanism includes a transport mechanism, a bracket, a lifting frame, a negative pressure pipe, a matrix light source, a horizontal moving structure, a projection board, a CDD camera and a control terminal. The bracket is arranged above the transport mechanism, and the lifting frame is arranged on the bracket. The negative pressure pipe includes a bottom pipe, an intermediate connecting pipe and an upper pipe. There are multiple bottom pipes, and they are arranged on the mesh belt of the transport mechanism at equal intervals. The upper and lower openings of the bottom pipe are connected, and a supporting ring is arranged in the middle. The wide-mouthed glass bottle is arranged on the supporting ring. The intermediate connecting pipe can be connected to the bottom pipe and is sleeved on the outside of the wide-mouthed glass bottle. The intermediate connecting pipe is arranged on the lifting frame to achieve lifting. The upper pipe is arranged at the upper opening of the intermediate connecting pipe and is connected to the negative pressure of the outside. The upper pipe has a notch on the side. The matrix light source includes a light source and a shell arranged in a ring. The shell can block the notch. The light source is arranged at the bottom of the shell. The horizontal moving structure is arranged on the bottom plate of the lifting frame and drives the matrix light source to move horizontally. The projection board is arranged at the lower end of the bottom tube, the CDD camera faces the projection board, the control terminal receives the photo information of the CDD camera, calculates the number of projection light spots on the projection board that meet the brightness, and when the number of light spots does not match the designed number, controls the horizontal moving device to make the matrix light source escape from the gap, and the negative pressure tube sucks the glass bottle upwards. The outer shell is made of high temperature resistant material, and inert gas protection is arranged outside the laser light source; the negative pressure tube between the projection board and the light source is a closed space.

2. A bottle bottom defect removal mechanism according to claim 1, characterized in that: The transport mechanism comprises a support, a roller, a mesh belt and a motor. The roller is mounted on the support, the mesh belt is sleeved on the roller, and the motor drives one of the rollers to rotate.

3. A bottle bottom defect removal mechanism according to claim 2, characterized in that: The lifting frame includes a cylinder, a guide rod, and a base plate. The cylinder is arranged on a bracket. The guide rod is slidably arranged on the bracket. The base plate is arranged at the bottom end of the guide rod. The piston end of the cylinder is fixedly connected to the top surface of the base plate.

4. A bottle bottom defect removal mechanism according to claim 3, characterized in that: The horizontal moving structure comprises an electric push rod, a connecting rod and a jacket, wherein the jacket is arranged outside the notch, the connecting rod is fixedly connected to the outer shell, and the electric push rod is fixedly connected to the connecting rod.

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