A flip plate device for plastic shell quality inspection and plastic shell quality inspection device

Abstract

The utility model discloses a flap device for quality inspection of plastic shells and a plastic shell quality inspection device, belonging to the technical field of plastic product processing, comprising: a flap for receiving a plastic shell output by a feeding conveyor line; the flap comprises a base plate provided with a flipping station for receiving the plastic shell, a baffle plate located on the discharge side of the upper surface of the base plate and side protection blocks on both sides for guiding and limiting the plastic shell; a rotating mechanism for driving the flap to perform a rotating action; the rotating mechanism comprises a 90-degree rotating cylinder; the rotating shaft of the rotating cylinder is connected to the flap via a connecting sleeve; the central axis of the connecting sleeve is located in a horizontal plane, and the central axis of the connecting sleeve and the baffle plate are located on the same straight line; the flap device also comprises a trigger element for detecting whether the plastic shell has reached the flipping station, and triggering the action of the rotating mechanism according to the detection result. The utility model solves the technical problem that manual detection of the stability of the snap-on installation of the plastic shell is not only inefficient, but also has a high missed detection rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic product processing, and particularly relates to a flap device for plastic shell quality inspection and a plastic shell quality inspection device. Background Art

[0002] Circuit breakers are an indispensable and important equipment in the power system. They are devices that can automatically disconnect the circuit when an abnormal situation occurs in the circuit, such as overload or short circuit, so as to protect the wires and electrical equipment from damage. The circuit breaker housing is one of the key components of the entire circuit breaker and is usually made of engineering plastics with excellent insulation properties.

[0003] The plastic casing of the circuit breaker not only needs to have certain mechanical strength and heat resistance, but more importantly, it must meet strict insulation requirements to ensure the insulation reliability of the circuit breaker during operation. Therefore, the assembly quality of the plastic casing is crucial to the overall performance of the circuit breaker. Among them, the buckle, as a fixing part of the casing, plays the role of connecting various components and ensuring the integrity of the casing. If the buckle is defective or falls off, it will directly affect the structural integrity of the casing, thereby reducing the insulation performance of the circuit breaker and causing safety hazards.

[0004] In the existing production process of plastic housings for circuit breakers, assembly quality problems are often encountered due to missing buckles. During the assembly process of the automatic assembly machine, the buckle is pressed down into the hole in the plastic housing and fixed by the claws on the buckle. However, when the buckle claws are broken, missing or deformed, the buckle cannot be reliably fixed and is easy to fall off after assembly. In addition, after the buckle is installed, the back of the plastic housing on the conveyor line faces down and the side with the buckle faces up, so the quality inspectors cannot directly judge whether the buckle and the plastic housing are firmly installed by visual means; currently, the main way to ensure whether the buckle is firmly installed in the plastic housing is to manually flip the plastic housing and then visually inspect it.

[0005] However, due to the limitations of the operator's visual range and operating techniques, visual blind spots are inevitable during manual inspection, and long-term repetitive operations can easily cause visual fatigue to the operator. In this case, manual inspection is not only inefficient, but also has a high rate of missed inspections, which further affects the quality and reliability of plastic housings.

[0006] Therefore, the prior art urgently needs an automated device that can simplify the operator's inspection process to overcome the limitations of the above manual inspection and improve the inspection efficiency. Utility Model Content

[0007] The utility model aims to provide a flap device for plastic shell quality inspection and a plastic shell quality inspection device, so as to solve the technical problem that manual inspection proposed in the above background technology is not only inefficient but also has a high missed inspection rate.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A flap device for quality inspection of a plastic shell, comprising:

[0010] A flap for receiving the plastic shell outputted from the feeding conveyor line; the flap comprises a base plate provided with a flipping station for receiving the plastic shell, a baffle plate located on the discharge side of the upper surface of the base plate, and side protection blocks on both sides for guiding and limiting the plastic shell;

[0011] A rotating mechanism that drives the flap to perform a rotating action; the rotating mechanism includes a 90-degree rotating cylinder;

[0012] Wherein: the rotating shaft of the rotating cylinder is connected to the flap through a connecting sleeve; the central axis of the connecting sleeve is located in a horizontal plane, and the central axis of the connecting sleeve and the baffle are located on the same straight line; the flap device also includes a trigger element for detecting whether the plastic shell has reached the flipping station and triggering the rotation mechanism to move according to the detection result.

[0013] Preferably, the flip plate also includes side panels respectively located on both sides of the upper surface of the base plate, and the side protection blocks are located on the inner sides of the side panels; providing better guiding and limiting functions to ensure that the plastic shell remains stable in the flipping station.

[0014] Preferably, the side protection block is rectangular, and a chamfer is provided on the feeding side of the side protection block; the chamfer on the feeding side can make the plastic shell enter the flipping station more easily and reduce jamming.

[0015] Preferably, a long protective block is provided on the baffle, and the height of the long protective block is equal to the thickness of the plastic shell; it provides support matching the thickness of the plastic shell to prevent the plastic shell from slipping during the flipping process.

[0016] Preferably, a plurality of isolating parts for forming a plurality of flipping stations on the substrate are provided on the upper surface of the substrate; the plurality of isolating parts are located on a straight line parallel to the baffle; the processing capacity of the flipping device is increased, and a plurality of plastic shells can be flipped at the same time, thereby improving efficiency.

[0017] Preferably, the trigger element is a photoelectric switch or a proximity switch; it can accurately detect whether the plastic housing reaches the flipping station and send a digital signal to ensure the accuracy and timeliness of the flipping action.

[0018] Preferably, the trigger element is connected to the solenoid valve on the rotary cylinder air supply pipeline via a relay; through the connection with the relay and the solenoid valve, reliable conversion of the sensor digital signal to the cylinder action can be achieved, thereby improving the response speed and stability of the system.

[0019] Preferably, a wiring groove for accommodating the output signal line of the trigger element is provided on the substrate; the signal line of the trigger element is provided with protection and a neat wiring path, reducing the risk of cable interference and damage.

[0020] Preferably, the connecting sleeve and the base plate are connected via a connecting bracket, which is used to replace a suitable flap according to plastic shells of different sizes, and also provides a stable connection structure to ensure a reliable connection between the flap and the rotating mechanism, thereby improving the stability and durability of the flap device.

[0021] A plastic shell quality inspection device, comprising:

[0022] The above-mentioned flap device for quality inspection of plastic shells;

[0023] A feed conveyor line for feeding plastic shells into the flipping station; the feed port of the flipping station is located at the discharge end of the feed conveyor line;

[0024] Located below the flap, it is used to receive the unloading conveyor line of the plastic shells that fall from the flap.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The utility model utilizes a flap to flip the plastic shell, and the collision and vibration with the conveyor belt can cause the buckle that is not firmly installed to fall off by itself, thereby solving the technical problem that the manual inspection of the stability of the buckle installation of the plastic shell of the circuit breaker in the prior art is not only inefficient, but also has a high missed detection rate; the connecting sleeve and the flap are connected by a connecting bracket, allowing flaps of different sizes to be replaced according to the structure of the plastic shell to be inspected, thereby improving the applicability and convenience of the device and adapting to different inspection requirements; a baffle and an isolation block are designed on the flap to ensure the stability and accurate positioning of the plastic shell to be inspected during the inspection process, effectively preventing the movement and dislocation of the shell, and improving the stability and accuracy of the quality inspection; the trigger element and the rotating cylinder can cooperate seamlessly, reducing the error caused by human operation, and ensuring the accuracy and consistency of each step of the operation; the protective block can effectively absorb and disperse external force, further ensuring the protection ability of the plastic shell and the device itself, and also has a guiding effect on the plastic shell; and the utility model is also provided with a wiring groove for accommodating the output signal line of the trigger element on the flap, effectively managing and protecting the signal line of the trigger element, avoiding the signal line from being messy or damaged, and simplifying wiring and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the flap device in the preferred embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the flap in the preferred embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure in which the plastic housing and the buckle are firmly connected in a preferred embodiment of the utility model;

[0030] Figure 4 This is a structural schematic diagram of the separation of the plastic housing and the buckle in a preferred embodiment of the utility model;

[0031] Figure 5 This is a structural schematic diagram of a plastic shell quality inspection device in a preferred embodiment of the utility model;

[0032] Figure 6 It is a schematic diagram of the axial structure of the plastic shell quality inspection device in the preferred embodiment of the utility model.

[0033] In the figure: 1. flap; 2. connecting sleeve; 3. rotating mechanism; 4. feed conveyor line; 5. discharge conveyor line; 6. plastic shell; 7. buckle; 11. turning station; 12. baffle; 13. side protection block; 14. trigger element; 15. side panel; 16. long protection block; 17. isolation part; 21. connecting bracket. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0035] like Figure 1-6 As shown:

[0036] First preferred embodiment:

[0037] The plastic shell 6 is in the shape of a rectangular parallelepiped structure as a whole, with a length of about 100 mm, a width of about 60 mm, and a height of about 15 mm;

[0038] A flap device for quality inspection of a plastic shell, comprising:

[0039] A flap 1 for receiving the plastic shell 6 outputted from the feeding conveyor line 4; the flap 1 comprises a base plate provided with a flipping station 11 for receiving the plastic shell 6, a baffle 12 located on the discharge side of the upper surface of the base plate, and side protection blocks 13 on both sides for guiding and limiting the plastic shell 6;

[0040] A rotating mechanism 3 driving the flap 1 to perform a rotating action; the rotating mechanism 3 comprises a 90-degree rotating cylinder;

[0041] Wherein: the rotating axis of the rotating cylinder is connected to the flap 1 through the connecting sleeve 2; the central axis of the connecting sleeve 2 is located in the horizontal plane, and the central axis of the connecting sleeve 2 and the baffle 12 are located on the same straight line; the flap 1 device also includes a trigger element 14 for detecting whether the plastic shell 6 reaches the flipping station 11, and triggering the rotation mechanism 3 to move according to the detection result.

[0042] The flip plate 1 also includes side panels 15 respectively located on both sides of the upper surface of the base plate, and the side protection block 13 is located on the inner side of the side panel 15; it provides better guiding and limiting functions to ensure that the plastic shell 6 remains stable in the flipping station 11; the side protection block 13 is rectangular, and the side protection block 13 is chamfered on the feeding side; the chamfer on the feeding side can make the plastic shell 6 easier to enter the flipping station 11 and reduce jamming; a long strip protection block 16 is provided on the baffle 12, and the height of the long strip protection block 16 is equal to the thickness of the plastic shell 6; it provides support matching the thickness of the plastic shell 6 to prevent the plastic shell 6 from slipping during the flipping process; at the same time, it protects the plastic shell 6 to be inspected to avoid damage to the plastic shell 6 due to friction or collision with the baffle 12.

[0043] A plurality of isolating portions 17 for forming a plurality of flipping stations 11 on the substrate are provided on the upper surface of the substrate; the plurality of isolating portions 17 are located on a straight line parallel to the baffle 12; the processing capacity of the flipping device is increased, and a plurality of plastic shells 6 can be flipped simultaneously, thereby improving efficiency.

[0044] Specifically, when an isolation portion 17 is provided on the upper surface of the substrate, the distance between the isolation portion 17 and the side protective block 13 is greater than the width of the plastic shell 6; it is used to enable the flip plate 1 to carry two plastic shells 6 at one time and ensure that there is enough space on the flip plate 1 to accommodate the plastic shell 6; when n (n>1) isolation portions 17 are provided on the upper surface of the substrate, the n isolation portions 17 are arranged in a straight line along the direction of the rotation axis, the minimum distance between the n isolation portions 17 and the side protective block 13 is greater than the width of the plastic shell 6, and the distance between adjacent isolation portions 17 is greater than the width of the plastic shell 6, forming n+1 flipping stations 11.

[0045] The trigger element 14 is a photoelectric switch or a proximity switch; it can accurately detect whether the plastic shell 6 reaches the flipping station 11 and send a digital signal to ensure the accuracy and timeliness of the flipping action; the trigger element 14 is connected to the solenoid valve on the rotary cylinder air supply pipeline through a relay; through the connection with the relay and the solenoid valve, it can achieve reliable conversion of the sensor digital signal to the cylinder action, thereby improving the response speed and stability of the system; a wiring groove for accommodating the output signal line of the trigger element 14 is provided on the substrate; it provides protection and a neat wiring path for the signal line of the trigger element 14, thereby reducing the risk of cable interference and damage.

[0046] The connecting sleeve 2 and the base plate are connected via a connecting bracket, which is used to replace a suitable flap 1 according to plastic shells 6 of different sizes, and also provides a stable connection structure to ensure a reliable connection between the flap 1 and the rotating mechanism 3, thereby improving the stability and durability of the flap 1 device.

[0047] Second preferred embodiment:

[0048] A plastic shell quality inspection device, comprising:

[0049] The above-mentioned flap device for quality inspection of plastic shells;

[0050] A feed conveyor line 4 for feeding the plastic shell 6 into the flip station 11; the feed port of the flip station 11 is located at the discharge end of the feed conveyor line 4; during feeding, the height difference between the discharge port of the feed conveyor line and the substrate is about 5 mm;

[0051] The discharging conveyor line 5 is located below the flap 1 and has a height difference of no more than 45 mm with the flap, and is used to receive the plastic shell 6 dropped from the flap 1 .

[0052] Working principle:

[0053] Preparation work before quality inspection:

[0054] The flap 1 is selected according to the size of the plastic shell 6 to be inspected. When the flap 1 does not include the isolation part 17, the flap 1 can carry one plastic shell 6 at one flip, and the minimum distance between the side protection blocks 13 is required to be greater than the width of the plastic shell 6; when the flap 1 includes one isolation part 17, the flap 1 can carry two plastic shells 6 at one flip, and the distance between the isolation part 17 and the side protection block 13 is required to be greater than the width of the plastic shell 6; when the flap 1 includes n (n>1) isolation parts 17, the flap 1 can carry n+1 plastic shells 6 at one flip, and when the flap 1 can carry multiple plastic shells 6 at one flip, the n isolation parts 17 are required to be arranged in a straight line along the direction of the rotation axis, the minimum distance between the n isolation parts 17 and the side protection blocks 13 is required to be greater than the width of the plastic shell 6, and the distance between adjacent isolation parts 17 is greater than the width of the plastic shell 6.

[0055] The flap 1 is connected to the connecting sleeve 2 and the rotary cylinder through a connecting bracket, and the turning station 11 is horizontally facing upward.

[0056] Quality inspection work begins:

[0057] Start the working power supply of the feeding conveyor line 4, the flap 1 device and the discharging conveyor line 5;

[0058] The assembled plastic shell 6 slides down through the slide of the feed conveyor line 4, at this time, the back of the plastic shell 6 faces downward, and the side with the buckle 7 faces upward; quality inspector No. 1 visually checks whether the buckle 7 is installed on each plastic shell 6 beside the slide, otherwise the plastic shell 6 without the buckle 7 is sorted out, and if it is, no operation is performed. Under the action of inertia and / or gravity, the plastic shell 6 with the buckle 7 slides down along the slide and falls from the discharge port with the back facing downward to the detection station of the flap 1 device; it should be noted that the entrance of the U-shaped flipping station 11 corresponds to the discharge end of the feed conveyor line 4, that is, the plastic shell 6 output from the discharge end of the feed conveyor line 4 can directly enter the flipping station 11.

[0059] After starting the working power of the flap 1 device, the trigger element 14 (photoelectric switch or proximity switch) continuously monitors. When the plastic shell 6 reaches the flipping station 11, the trigger element 14 detects its presence and immediately switches the output signal from low level to high level (or from off state to on state); this high level signal is transmitted to the relay through the signal output line safely arranged in the wiring groove of the substrate, and the relay immediately switches the state and activates the solenoid valve on the connected rotary cylinder air path; the solenoid valve opens, allowing compressed air to flow into the rotary cylinder, driving the cylinder to rotate 90 degrees, driving the flap 1 to rotate 90 degrees, thereby realizing the flipping of the plastic shell 6; after the flipping is completed, the signal of the trigger element 14 returns to the low level state, and the rotary cylinder is reset to prepare for the next flipping. During the whole process, the system continuously monitors to ensure that each shell is accurately detected and flipped. This design is not only highly automated and reduces manual intervention, but also achieves high efficiency through precise time control and fast and reliable pneumatic systems. The use of relays and solenoid valves improves the system response speed and stability, while the use of wiring grooves enhances the reliability and safety of signal transmission.

[0060] During the rotation of the flap 1, since the central axis of the connecting sleeve 2 and the baffle 12 are located in the same straight line, the plastic shell 6 is subjected to a large axial force, so that the plastic shell 6 obtains an initial rotational torque. The flap 1 stops rotating after rotating 90 degrees, and the plastic shell 6 leaves the base plate with its back side vertical. Under the influence of gravity and inertia, the plastic shell 6 continues to maintain the initial rotational motion and performs free fall motion in the vertical direction. Finally, under the action of gravity, the plastic shell 6 stabilizes on the conveyor belt with its back side facing up.

[0061] After the qualified plastic shell 6 is turned over, it falls intact on the conveyor belt of the discharging conveyor line 5, that is, there is no buckle 7 on the conveyor belt, and the qualified plastic shell 6 is conveyed to the subsequent process through the discharging conveyor line 5; if the plastic shell 6 has the problem of buckle 7 falling off, the loose buckle 7 after turning over and falling is affected by gravity and the impact force generated by the collision with the conveyor belt, so that the buckle 7 completely detaches from the hole on the plastic shell 6 at the moment of collision and falls off, and the loose buckle 7 will fall on the conveyor belt of the discharging conveyor line, and at the same time, the plastic shell 6 has a hole without the buckle 7 installed. The second quality inspector can determine whether there is an unqualified plastic shell 6 by visually checking whether there is a buckle 7 on the discharging conveyor line 5. If so, there is an unqualified plastic shell 6, and the staff will find the plastic shell 6 with a hole without the buckle 7 installed and sort it out; otherwise, it is a qualified plastic shell 6.

[0062] This embodiment is not only applicable to detecting whether the buckle 7 of the plastic housing 6 is firmly installed, but also applicable to any easily detachable parts that need to be assembled on the plastic housing 6, such as the magnetic block. The detection principles of the magnetic block and the buckle 7 are the same.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flap device for quality inspection of plastic shells, characterized in that: include: A flap for receiving the plastic shell (6) output from the feeding conveyor line; the flap comprises a base plate provided with a flipping station (11) for receiving the plastic shell (6), a baffle (12) located on the discharge side of the upper surface of the base plate, and side protection blocks (13) on both sides for guiding and limiting the plastic shell (6); A rotating mechanism (3) driving the flap to perform a rotating action; the rotating mechanism (3) comprises a 90-degree rotating cylinder; Wherein: the rotating shaft of the rotating cylinder is connected to the flap via a connecting sleeve (2); the central axis of the connecting sleeve (2) is located in a horizontal plane, and the central axis of the connecting sleeve (2) and the baffle (12) are located on the same straight line; the flap device also includes a trigger element (14) for detecting whether the plastic shell (6) has reached the flipping station (11), and triggering the rotation mechanism (3) to move according to the detection result.

2. The turning device for quality inspection of plastic shell according to claim 1, characterized in that: The flap also includes side panels (15) respectively located on both sides of the upper surface of the base plate, and the side protection blocks (13) are located on the inner sides of the side panels (15).

3. The flap device for quality inspection of plastic shell according to claim 2, characterized in that: The side protection block (13) is rectangular, and a chamfer is arranged on the feeding side of the side protection block (13).

4. The flap device for quality inspection of plastic shell according to claim 1, characterized in that: A long protective block (16) is provided on the baffle (12), and the height of the long protective block (16) is equal to the thickness of the plastic shell (6).

5. The turning device for quality inspection of plastic shell according to claim 1, characterized in that: A plurality of isolation parts (17) for forming a plurality of flipping stations (11) on the substrate are arranged on the upper surface of the substrate; the plurality of isolation parts (17) are located on a straight line parallel to the baffle (12).

6. The turning plate device for quality inspection of plastic shell according to claim 1, characterized in that: The trigger element (14) is a photoelectric switch or a proximity switch.

7. The flip plate device for quality inspection of plastic shell according to claim 1, characterized in that: The trigger element (14) is connected to the electromagnetic valve on the air supply pipeline of the rotary cylinder via a relay.

8. The turning device for quality inspection of plastic shell according to claim 1 or 7, characterized in that: A wiring groove for accommodating an output signal line of a trigger element (14) is arranged on the substrate.

9. The turning plate device for quality inspection of plastic shell according to claim 1, characterized in that: The connecting shaft sleeve (2) and the base plate are connected via a connecting bracket (21).

10. A plastic shell quality inspection device, characterized in that: include: The flap device for quality inspection of plastic shells according to any one of claims 1 to 9; A feed conveyor line for feeding the plastic shell (6) into the flipping station (11); the feed port of the flipping station (11) is located at the discharge end of the feed conveyor line; Located below the flap, it is used to receive the discharging conveyor line of the plastic shell (6) that falls from the flap.

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