Defect detection system for glass bottle production

Abstract

The utility model relates to the technical field of bottle body defect detection devices, in particular to a defect detection system for glass bottle production, which comprises a conveyor belt, a detection mechanism and a grabbing mechanism, the material distributing mechanism comprises a rotary gear lever, a blocking cylinder and an inductive switch which are arranged on the rack; one end of the rotary gear lever is pivoted with a pin shaft, the rear end part of the pin shaft is fixed on a rack of the conveyor belt, the pin shaft is sleeved with a torsional spring, one end of the torsional spring is fixed with the rotary gear lever, and the other end of the torsional spring is fixed with the rack of the conveyor belt; a bottle body feeding outlet is formed in the front end parts of the two rotary baffle rods, and the bottle body feeding outlet is gradually reduced in the conveying direction of the conveying belt; and a gap between the front end part of the rotary gear lever when the rotary gear lever is not stressed and the inductive switch is equal to the maximum outer diameter of a conveyed bottle body. The device can separate the similar glass bottles on the conveying line, improves the grabbing accuracy of the clamping jaw, and improves the glass production quality.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle defect detection devices, specifically a defect detection system for glass bottle production. Background Technology

[0002] Glass bottles are transparent glass containers. Due to their airtightness, light transmission, and stable properties, glass is widely used in the food, pharmaceutical, and chemical industries.

[0003] The production of glass bottles mainly involves a series of processes, including pre-processing, melting, forming, heat treatment, and inspection. The inspection process involves checking the quality of the finished glass bottles and classifying and rejecting those with defects (such as bubbles, cracks, spots, and gaps inside the bottle) to ensure the quality of the glass bottle products.

[0004] In industry, online inspection systems are commonly used to detect defects in batches of glass bottles. For example, the existing technology "A Multifunctional Online Inspection System and Method for Empty Bottle Quality Based on Machine Vision" (Publication No.: CN115388958A) can perform quality inspection on glass bottles during the production process. However, the existing technology still has the following technical problems:

[0005] Because the spacing between adjacent glass bottles is unequal when they are conveyed on the conveyor line, if two bottles are too close together during the process of the gripper picking up the bottle from the conveyor line and moving it to the inspection area, the bottle in the later position will interfere with the gripper, causing the gripper to be unable to accurately pick up the bottle in the earlier position. The existing technology uses a baffle mechanism, which uses a drive mechanism to control the baffle to periodically extend vertically between two close glass bottles on the conveyor line, thereby separating the two glass bottles by a certain distance. However, this method has high requirements for the response speed of the drive mechanism and the conveyor line cycle time. If the conveyor line cycle time is not adjusted correctly, the baffle can easily extend directly into the bottle body, causing damage or even cracks to the bottle, which seriously affects the quality of the glass bottle. Utility Model Content

[0006] This utility model provides a defect detection system for glass bottle production, which can solve the problem that the material blocking mechanism in the existing glass bottle detection system cannot accurately separate glass bottles that are close together on the conveyor line, resulting in the gripper claws causing damage or cracks to the glass, thus affecting the quality of glass bottle production.

[0007] This application provides the following technical solution: a defect detection system for glass bottle production, including an adjacent conveyor belt and a detection mechanism, and a material handling mechanism disposed above the detection mechanism;

[0008] It also includes a material distribution mechanism, which includes a rotary stop bar rotatably connected to the frame of the conveyor belt, a blocking cylinder fixed to the conveyor frame, and an inductive switch fixed to the frame of the conveyor belt.

[0009] Two rotary stop bars are provided, symmetrically arranged on both sides of the conveyor belt frame along the conveyor belt's transmission direction. A pin is pivotally connected to the rear end of each rotary stop bar. The end of the pin away from the rotary stop bar is fixed to the conveyor belt frame. A torsion spring is sleeved on the pin. One end of the torsion spring is fixed to the lower surface of the rotary stop bar, and the other end of the torsion spring is fixed to the upper surface of the conveyor belt frame. The two rotary stop bars gradually converge along the conveyor belt's transmission direction, and the front ends of the two rotary stop bars form a bottle feeding outlet.

[0010] When the piston rod of the blocking cylinder extends, the bottle feeding outlet formed by the two rotary stops gradually narrows. When the piston rod of the blocking cylinder does not extend, the gap between the front end of the rotary stop and the inductive switch is equal to the maximum outer diameter of the conveyed bottle.

[0011] Beneficial effects:

[0012] By setting a material separation mechanism on the conveyor belt, when two adjacent glass bottles are conveyed on the conveyor line, the glass bottle in the front position will first push open the two rotary stop bars and pass between them. When the rotary stop bar is not under force, the gap between the front end of the rotary stop bar and the inductive switch is equal to the maximum outer diameter of the conveyed bottle. This allows the glass bottle in the front position to immediately enter the sensing area of ​​the inductive switch after it separates from the two rotary stop bars. The inductive switch then transmits a signal to the control system, which controls the piston rod of the blocking cylinder to extend and press against the two sides of the rotary stop bar, which is being reset under the action of the torsion spring. This prevents the glass bottle in the rear position from pushing open the rotary stop bar, thus achieving the purpose of separating the two adjacent glass bottles. Under the action of the torsion spring, the glass bottle can pass smoothly through the two rotary stop bars without damaging the glass bottle. The blocking cylinder limits the rotary stop bar and prevents it from contacting the glass bottle, thereby effectively preventing damage to the glass bottle and improving the production quality of the glass bottle.

[0013] Furthermore, two blocking cylinders are provided, which are symmetrically arranged on both sides of the rotary stop bar along the transmission direction of the conveyor belt, and the extension and retraction direction of the piston rod of the blocking cylinder is perpendicular to the transmission direction of the conveyor belt.

[0014] Beneficial effects: The piston rod of the blocking cylinder is set perpendicular to the transmission direction of the conveyor belt, which helps to block the rotation stop when the piston rod extends, thus limiting the distance between the glass bottles in the rear position and the glass bottles in the front position, achieving the purpose of separation.

[0015] Furthermore, a base is fixed below the blocking cylinder, and the base is fixed to both sides of the conveyor belt frame.

[0016] Beneficial effects: The blocking cylinder is fixed to both sides of the conveyor belt frame by the seat, which facilitates the installation and removal of the blocking cylinder, and also helps to improve the stability of the blocking cylinder.

[0017] Furthermore, the detection mechanism includes a workbench set up beside the conveyor belt, a drive mechanism and a camera mechanism respectively fixed on the workbench.

[0018] Beneficial effects: The drive mechanism is used to move the glass bottle to the detection area of ​​the camera mechanism, which is used to collect detailed information about the glass bottle and transmit it to the detection system for analysis and judgment.

[0019] Furthermore, the drive mechanism includes a geared motor fixed on the worktable, a turntable keyed to the main shaft of the geared motor, a clamping jaw rotatably connected to the turntable, and a rotation mechanism fixed on the worktable. The bottom end of the clamping jaw is keyed to a driven gear.

[0020] Beneficial effects: The gripper is used to fix the glass bottle and prevent it from tipping over. The geared motor is used to drive the turntable to rotate, so that the gripper can revolve around the camera's detection area. The rotation mechanism is used to drive the gripper to rotate, which makes it easier for the camera to collect images of the glass bottle from multiple angles and improves the accuracy of the detection results.

[0021] Furthermore, the self-rotation mechanism includes a servo motor fixed inside the worktable, a drive gear keyed to the main shaft of the servo motor, and a synchronous belt sleeved on the drive gear and the driven gear at the bottom end of the clamping claw.

[0022] Beneficial effect: When the servo motor rotates, it can drive the gripper to rotate through the drive gear, synchronous belt and driven gear.

[0023] Furthermore, there are two gripping mechanisms, which are symmetrically fixed on the worktables on both sides of the detection mechanism. The gripping mechanism includes a bracket fixed on the worktable, a mounting block fixed on the bracket, a slider slidably connected in the mounting block, and a pneumatic gripper fixed below the slider with screws. A lead screw motor is fixed on one side of the mounting block, and the slider is sleeved on the lead screw of the lead screw motor.

[0024] Beneficial effects: After the pneumatic gripper picks up the glass bottle, the bottle is easily transported from the conveyor belt to the gripper on the turntable by the lead screw motor.

[0025] Furthermore, the camera mechanism includes a crossbeam fixed between the material handling mechanisms, an LED light source fixed below the crossbeam, a support plate fixed on the workbench, and a camera screwed to the support plate, with the camera facing the LED light source.

[0026] Beneficial effects: The camera mechanism can capture images of the glass bottle, which facilitates the analysis system's judgment. The light source is used to improve the clarity of the images of the glass bottle captured by the camera, thereby improving the accuracy of the analysis results. Attached Figure Description

[0027] Figure 1 This is the main structural view of the present invention.

[0028] Figure 2 for Figure 1 Top view.

[0029] Figure 3 A top view showing the installation of the driving gear, driven gear, and timing belt. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The markings in the accompanying drawings include: glass bottle 1, frame 2, conveyor belt 201, pin 3, torsion spring 4, blocking cylinder 5, inductive switch 6, bracket 7, mounting block 8, slider 9, pneumatic gripper 10, clamping claw 11, LED light source 12, turntable 13, synchronous belt 14, driven gear 15, support plate 16, camera 17, servo motor 18, drive gear 181, reduction motor 19, worktable 20, rotary stop bar 21, seat 22, lead screw motor 23, lead screw 231.

[0032] Example 1

[0033] like Figures 1 to 3 As shown, the defect detection system for glass bottle production includes an adjacent conveyor belt and a detection mechanism, as well as a material gripping mechanism located above the detection mechanism and a material distribution mechanism fixed on the frame 2 of the conveyor belt 201.

[0034] like Figure 2 As shown, the material distribution mechanism includes a rotary stop bar 21 rotatably connected to the frame 2 of the conveyor belt 201, a blocking cylinder 5 fixed to the conveyor frame 2, and an induction switch 6 fixed to the frame 2 of the conveyor belt 201. The frame 2 has seats 22 fixed on both sides, and the blocking cylinder 5 is screwed to the seats 22.

[0035] Two slewing levers 21 are provided, one each along the transmission direction of the conveyor belt 201. Figure 1 or Figure 2 The racks are symmetrically arranged on both sides (from left to right), such as... Figure 1As shown, a pin 3 is pivotally connected to the rear end of the rotary stop bar 21. The pin 3 is vertically set, and the end of the pin 3 away from the rotary stop bar 21 is fixed to the frame 2 of the conveyor belt 201. A torsion spring 4 is sleeved on the pin 3. One end of the torsion spring 4 is fixed to the lower surface of the rotary stop bar 21, and the other end of the torsion spring 4 is fixed to the upper surface of the frame 2 of the conveyor belt 201. The two rotary stop bars 21 gradually converge along the transmission direction of the conveyor belt 201, and the front ends of the two rotary stop bars 21 form a bottle feeding outlet.

[0036] Two blocking cylinders 5 are provided, symmetrically arranged on both sides of the rotary stop bar 21 along the transmission direction of the conveyor belt 201. The extension and retraction direction of the piston rod of the blocking cylinder 5 is perpendicular to the transmission direction of the conveyor belt 201. When the piston rod of the blocking cylinder 5 extends, the end of the piston rod can press against the side of the rotary stop bar 21, so that the bottle feeding outlet formed by the two rotary stop bars 21 gradually narrows. When the piston rod of the blocking cylinder 5 does not extend, the gap between the front end of the rotary stop bar 21 and the induction switch 6 is equal to the maximum outer diameter of a glass bottle 1 being transported.

[0037] The testing mechanism includes a workbench 20 set on one side of the conveyor belt 201, a drive mechanism and a camera mechanism respectively fixed on the workbench 20;

[0038] like Figure 1 and Figure 2 As shown, the drive mechanism includes a geared motor 19 fixed on the worktable 20, a turntable 13 keyed to the spindle of the geared motor 19, gripping claws 11 rotatably connected to the turntable 13, and a rotation mechanism fixed on the worktable 20. There are multiple gripping claws 11, evenly distributed circumferentially on the turntable 13. A driven gear 15 is keyed to the bottom end of each gripping claw 11.

[0039] like Figure 1 As shown, the rotation mechanism includes a servo motor 18 fixed with screws inside the worktable 20, a drive gear 181 keyed to the spindle of the servo motor 18, and a timing belt 14 sleeved on the drive gear 181 and the driven gear 15. The installation method of the drive gear 181, the driven gear 15, and the timing belt 14 is shown in [reference needed]. Figure 3 When the servo motor 18 rotates, it can drive the gripper 11 to rotate through the drive gear 181, the synchronous belt 14 and the driven gear 15.

[0040] The material handling mechanism has two components: a bracket 7 fixed to the workbench 20, a mounting block 8 fixed to the bracket 7, a slider 9 slidably connected within the mounting block 8, and a pneumatic gripper 10 fixed below the slider 9 by screws. A lead screw motor 23 is fixed to one side of the mounting block 8, and the slider 9 is fitted onto the lead screw 231 of the lead screw motor 23. The mounting block 8 has a downward-facing groove, and the two inner sidewalls of the groove have sliding grooves. The slider 9 has protrusions at both ends, which can slide within the sliding grooves. Figure 2 As shown, when the lead screw motor 23 rotates, it can drive the pneumatic gripper 10 fixed at the bottom of the slider 9 to move between the conveyor belt 201 and the turntable 13, thereby facilitating the transport of the glass bottle 1.

[0041] The camera mechanism includes a crossbeam fixed between mounting blocks 8, an LED light source 12 fixed below the crossbeam by connecting blocks, a support plate 16 fixed on the worktable 20, and a camera 17 screwed to the support plate 16, with the camera 17 facing the LED light source 12.

[0042] The method of using this device is as follows:

[0043] Glass bottle 1 from Figure 2 The conveyor belt 201 feeds from the left side, passing sequentially between the two rotary baffles 21 of the dispensing mechanism. When two closely spaced glass bottles 1 pass by, the glass bottle 1 in the front position first pushes open the two rotary baffles 21 and passes between them, then detaches from them and enters the sensing area of ​​the induction switch 6. The induction switch 6 then transmits a signal to the control system, controlling the piston rod of the blocking cylinder 5 to extend and press against the rotary baffle 21, which is being reset under the action of the torsion spring 4, preventing the glass bottle 1 in the rear position from pushing open the rotary baffle 21, thus achieving the purpose of separating the two close glass bottles 1. Subsequently, the glass bottle 1 in the front position detaches from the induction switch. In the sensing range of gate 6, the control system controls the screw motor 23 to rotate, and the pneumatic gripper 10 descends to grasp the glass bottle 1 (since the speed of the conveyor belt 201 and the descending speed of the pneumatic gripper 10 are both adjustable, the glass bottle 1 can be accurately grasped). After grasping, the pneumatic gripper 10 moves upward, and under the rotation of the screw motor, it moves towards the turntable 13, placing the glass bottle 1 onto the gripper 11 on the turntable 13. Then, the reduction motor 19 rotates, moving the glass bottle 1 to the camera area of ​​the camera 17. At this time, the servo motor 18 rotates, causing the gripper 11 to rotate, allowing the camera 17 to capture images from multiple angles. Then, the glass bottle 1 enters... Figure 2 The material handling mechanism on the right side has a pneumatic gripper 10 that grabs the glass bottle 1 from the gripper 11 and returns it to the conveyor belt 201 to complete one round of inspection.

[0044] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A defect detection system for glass bottle production, comprising a conveyor belt and a detection mechanism arranged adjacent to each other and a material grabbing mechanism arranged above the detection mechanism, characterized in that: It also includes a material distribution mechanism, which includes a rotary lever rotatably connected to the frame of the conveyor belt, a blocking cylinder fixed to the conveyor frame, and an induction switch fixed to the frame of the conveyor belt; The rotary levers are provided with two, which are symmetrically arranged on both sides of the frame of the conveyor belt along the transmission direction of the conveyor belt, and the rear end of the rotary lever is pivotally connected with a pin shaft, and the end of the pin shaft away from the rotary lever is fixed on the frame of the conveyor belt, and a torsion spring is sleeved on the pin shaft, and one end of the torsion spring is fixed to the lower surface of the rotary lever, and the other end of the torsion spring is fixed to the upper surface of the frame of the conveyor belt; the two rotary levers are gradually retracted along the transmission direction of the conveyor belt, and the front ends of the two rotary levers form a bottle feeding outlet; When the piston rod of the blocking cylinder extends, the bottle feeding outlet formed by the two rotary levers gradually shrinks. When the piston rod of the blocking cylinder does not extend, the gap between the front end of the rotary lever and the induction switch is equal to the maximum outer diameter of a conveyed bottle.

2. The defect detection system for glass bottle production according to claim 1, characterized in that: There are two blocking cylinders, which are symmetrically arranged on both sides of the rotary gear rod along the transmission direction of the conveyor belt. The extension and retraction direction of the piston rods of the blocking cylinders is perpendicular to the transmission direction of the conveyor belt.

3. The defect detection system for glass bottle production according to claim 2, characterized in that: A seat is fixed under the blocking cylinder, and the seat is fixed on both sides of the frame of the conveyor belt.

4. The defect detection system for glass bottle production according to claim 1, characterized in that: The detection mechanism comprises a workbench arranged beside the conveyor belt, a driving mechanism and a camera mechanism respectively fixed on the workbench.

5. The defect detection system for glass bottle production according to claim 4, characterized in that: The driving mechanism includes a reduction motor fixed on the workbench, a turntable key-connected to the main shaft of the reduction motor, a clamping claw rotatably connected to the turntable and a rotation mechanism fixed on the workbench, and the bottom rod of the clamping claw is key-connected to a driven gear.

6. The defect detection system for glass bottle production according to claim 5, characterized in that: The self-rotating mechanism comprises a servo motor fixed in the workbench, a driving gear key-connected to the main shaft of the servo motor, and a synchronous belt sleeved on the driving gear and the driven gear of the rod at the bottom end of the clamping claw.

7. The defect detection system for glass bottle production according to claim 6, characterized in that: The material grabbing mechanism is provided with two, which are symmetrically fixed on the workbench on both sides of the detection mechanism. The material grabbing mechanism includes a bracket fixed on the workbench, a mounting block fixed on the bracket, a slider slidably connected in the mounting block, and a pneumatic clamp fixed under the slider by screws. A screw motor is fixed on one side of the mounting block, and the slider is sleeved on the screw of the screw motor.

8. The defect detection system for glass bottle production according to claim 7, characterized in that: The camera mechanism comprises a crossbeam fixed between the material grabbing mechanisms, an LED light source fixed under the crossbeam, a support plate fixed on the workbench, and a camera connected to the support plate by screws, and the camera is aimed at the LED light source.

Images