A dipping product detection device and a dipping product production line using the device

Abstract

The present application relates to a dipping product detection device and a dipping product production line using the device, including a frame, on which a lifting mechanism is provided. A lifting table is connected to the lifting mechanism, and a detection box is provided on the lifting table. A conductive medium is provided in the detection box and is connected to a detection circuit through the conductive medium. Detection terminals are provided on the detection box and are electrically connected to the detection circuit. A power supply and an indicator light are electrically connected to the detection circuit. The dipping product production line includes a detection device and a conveying track. The conveying track is arranged through the frame, and hanging racks are provided on the conveying track, and multiple groups of dipped finished products are provided on the hanging racks. The number of dipped finished products corresponds to the number of detection boxes. When defects such as pinholes, air bubbles or cracks appear on the dipped finished products, the conductive medium will enter the defective parts, resulting in a change in resistance, and then an alarm reminder is given through the indicator light. The detection time is short, the accuracy is high, it is suitable for the rapid production of the assembly line, and can improve production efficiency and product quality.

Description

Technical Field

[0001] The present application relates to the field of plastic dip detection technology, and in particular to a plastic dip product detection device and a plastic dip product production line using the device. Background Art

[0002] Dip molding is also known as plastic coating, hot dip molding, hot compress plastic coating, etc. It is a plastic coating process. It is a surface treatment technology that forms a uniform plastic coating by dipping the metal frame into molten plastic (such as PE, PVC, etc.). It can improve the durability, corrosion resistance and aesthetics of the product. Dip molding products are widely used in all aspects of production and life, such as dishwasher pull-out baskets, clothes drying racks, tool handle rubber covers, etc.

[0003] Since the pull-out basket needs to work in a high temperature and humid environment, during the plastic dipping production process of the pull-out basket, it is necessary to ensure that the plastic dipping completely covers the product. Once defects such as pinholes, bubbles or cracks appear, it will cause corrosion to the product and affect the product life. Therefore, the finished product needs to be inspected in the last step of the plastic dipping of the pull-out basket.

[0004] At present, the commonly used detection method is the underwater visual method. The underwater visual method refers to applying a detection agent on the stress concentration area of ​​the dip-plastic pull-out basket, such as the grid intersection, welds and other positions. The detection agent is generally vaseline and phenolphthalein filter paper, or a UV tracer is used to detect whether there are pinholes or crack defects on the dip-plastic finished product. However, this detection method can only be used for random inspections, and its detection efficiency is low. The detection process takes 15 to 30 minutes, which is not suitable for the assembly line production of dip-plastic pull-out baskets. Therefore, this application believes that a detection device and a dip-plastic assembly line that can respond quickly and detect accurately should be designed. Summary of the invention

[0005] The present application provides a device for detecting plastic-impregnated products, which has the effects of rapid response and accurate detection.

[0006] The present application provides a device for detecting plastic dipped products using the following technical solution:

[0007] A device for detecting plastic-dipped products comprises a frame, a lifting mechanism is arranged on the frame, a lifting platform is connected to the lifting mechanism, a detection box is arranged on the lifting platform, a conductive medium is arranged in the detection box and a detection circuit is connected via the conductive medium, a detection terminal is arranged on the detection box and the detection terminal is electrically connected to the detection circuit, and a power supply and an indicator light are electrically connected to the detection circuit.

[0008] Preferably, the lifting mechanism includes a driving motor arranged on the upper part of the frame, the output shaft of the driving motor is drivingly connected to a sprocket, a chain is wound around the sprocket, the chain is drivingly connected to the sprocket, one end of the chain is connected to a lifting plate, and the other end of the chain is connected to the lifting platform.

[0009] Preferably, the sprockets include a first sprocket and a second sprocket, both the first sprocket and the second sprocket are arranged in pairs, the first sprocket and the second sprocket are both arranged at both ends of the output shaft of the driving motor, the chain includes a first chain and a second chain, the first chain is wound around the first sprocket and both ends of the first chain are respectively connected to one side of the lifting plate and the lifting table close to the driving motor, and the second chain is wound around the second sprocket and both ends of the second chain are respectively connected to one side of the lifting plate and the lifting table away from the driving motor.

[0010] Preferably, a supporting sprocket is arranged on one side of the frame away from the driving motor, the middle part of the second chain is wound around the supporting sprocket and the second chain is in transmission connection with the supporting sprocket.

[0011] Preferably, supporting bearings are arranged on the sides of the first sprocket, the second sprocket and the supporting sprocket.

[0012] Preferably, the lifting plate is a vertically arranged hollow plate-like structure, the lifting plate is slidably arranged on the side of the frame, and the weight of the lifting plate is not less than the sum of the weights of the lifting table, the detection box and the conductive medium.

[0013] Preferably, a position detection mechanism is arranged between the lifting plate and the frame.

[0014] Preferably, there are multiple detection boxes, and the detection terminals and the indicator lights are arranged in each detection box. The detection terminals and the indicator lights are connected in series, the detection circuit is a resistance detection circuit, and the detection terminals and the indicator lights in different detection boxes are connected in parallel.

[0015] Preferably, a pair of the detection terminals are arranged in the detection box, the detection terminals are located at the lower part of the detection box and there is a gap between the detection terminals. The detection box is provided with a water inlet, an overflow port and a water level line.

[0016] The present application also provides a dip coating product production line, including the above-mentioned detection device and a conveying track. The conveying track is arranged through the frame. Hanging racks are arranged on the conveying track and multiple groups of dip coating finished products are arranged on the hanging racks. The positions and quantities of the dip coating finished products correspond to the positions and quantities of the detection boxes. Sensors are arranged at positions corresponding to the detection boxes on the conveying track and the sensors can detect the positions of the hanging racks. The sensors are electrically connected to the lifting mechanism.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. In this application, by setting up a framework and an elevating mechanism on the framework, and a detection box is arranged on the elevating mechanism. When the dip-molded finished product reaches the position, it can be raised to detect the finished product. At the same time, a conductive medium is arranged in the detection box, and a detection circuit, a power supply and an indicator light are electrically connected to the conductive medium. It can conduct electricity detection on the dip-molded finished product through the conductive medium. When defects such as pinholes, bubbles or cracks appear on the dip-molded finished product, the conductive medium will enter the defect, resulting in the conductive medium contacting the metal material inside the dip-molded finished product, causing a change in the resistance of the conductive medium, and then an alarm reminder is given through the indicator light. The detection time is short and the accuracy is high, which can adapt to the rapid production of the assembly line and improve production efficiency and product quality.

[0019] 2. By setting a driving motor on the framework and connecting a sprocket to the output end of the driving motor, and a chain is wound around the sprocket. The two ends of the chain are respectively connected to a lifting plate and a lifting platform. The driving motor can drive the sprocket to rotate, and then drive the chain to rotate, realizing the lifting adjustment of the lifting platform. The structure is compact and convenient to adjust and use. By setting the sprocket as the first sprocket and the second sprocket, and connecting the first chain and the second chain to the first sprocket and the second sprocket respectively, the first chain and the second chain are on different sides of the lifting platform respectively. The driving motor can drive the first chain and the second chain to rotate simultaneously, realizing the stable adjustment of the lifting platform, and the lifting effect is good. By setting a supporting sprocket on the framework to ensure the transmission of the second chain, and by setting supporting bearings on the sides of the first sprocket, the second sprocket and the supporting sprocket, the stable transmission of the sprocket and the chain is ensured.

[0020] 3. By setting the lifting plate as a hollow plate-like structure, and at the same time the weight of the lifting plate is not less than the sum of the weights of the lifting platform, the detection box and the conductive medium, it is ensured that the driving motor can drive the sprocket and the chain to rotate, ensuring the lifting operation. At the same time, the weight of the lifting plate can also be adjusted according to actual needs to ensure stable lifting. By setting a position detection mechanism on the lifting plate, the lifting position can be detected to ensure that the dip-molded finished product is completely immersed in the detection box, ensuring the detection accuracy.

[0021] 4. By setting multiple groups of detection boxes and connecting the detection terminals and the indicator lights in parallel in the multiple groups of detection boxes, multiple dip-molded finished products can be detected simultaneously, improving the detection effect and adapting to the flow operation.

[0022] 5. This application also provides a dip-molding product production line, including the above detection device, which can combine the hanging rack and the transmission structure to realize the rapid detection of the dip-molded finished product, effectively improving the production efficiency and product quality. Brief Description of the Drawings

[0023] Figure 1 It is a three-dimensional view of the dip-molding product detection device in the first embodiment of this application.

[0024] Figure 2 It is a perspective view of another angle of the dip - molded product detection device in the first embodiment of the present application.

[0025] Figure 3 It is a top view of the dip - molded product detection device in the first embodiment of the present application.

[0026] Figure 4 It is a schematic structural diagram of the detection box in the first embodiment of the present application.

[0027] Figure 5 It is a circuit diagram of the detection circuit in the first embodiment of the present application.

[0028] Figure 6 It is a schematic structural diagram of the dip - molding production line in the second embodiment of the present application.

[0029] Explanation of reference numerals: 1. Frame; 2. Lifting mechanism; 201. Driving motor; 202. Sprocket; 202a. First sprocket; 202b. Second sprocket; 203. Chain; 203a. First chain; 203b. Second chain; 204. Lifting plate; 205. Supporting sprocket; 206. Supporting bearing; 3. Lifting table; 4. Detection box; 401. Water inlet; 402. Overflow port; 403. Water level line; 5. Detection terminal; 6. Power supply; 7. Indicator light; 8. In - place detection mechanism; 9. Conveyor track; 901. Hanger. Detailed implementation manners

[0030] The following further elaborates on the present application with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] Refer to Figures 1 to 5 , a dip - molded product detection device, including a frame 1. In this embodiment, the frame 1 is a gantry frame. A lifting mechanism 2 is arranged on the frame 1. A lifting table 3 is connected to the lifting mechanism 2. A detection box 4 is arranged on the lifting table 3. A conductive medium is arranged in the detection box 4 and is connected to a detection circuit through the conductive medium. In this embodiment, the conductive medium is water. A detection terminal 5 is arranged on the detection box 4 and the detection terminal 5 is electrically connected to the detection circuit. A power supply 6 and an indicator light 7 are electrically connected to the detection circuit.

[0033] Specifically, the power supply 6 in this embodiment is a 24V-150W single-group output closed power supply, the indicator light 7 includes a green qualified indicator light and a red defect indicator light, and the red defect indicator light in this embodiment is also connected to a buzzer; the lifting mechanism 2 includes a driving motor 201 arranged on the upper part of the frame 1, and the output shaft of the driving motor 201 is transmission-connected with a sprocket 202. Specifically, a horizontal plate is arranged on the upper part of the frame 1 in this embodiment, and a driving motor is arranged on the horizontal plate. The driving motor is transmission-connected with a reduction box, and output shafts are arranged at both ends of the reduction box and are connected to sprockets 202 through the ends of the output shafts. A chain 203 is wound around the sprocket 202, and the chain 203 is transmission-connected with the sprocket 202. One end of the chain 203 is connected to a lifting plate 204, and the other end of the chain 203 is connected to the lifting platform 3.

[0034] Reference Figure 2 and Figure 3 The sprocket 202 includes a first sprocket 202a and a second sprocket 202b, and the first sprocket 202a and the second sprocket 202b are both arranged in pairs. The first sprocket 202a and the second sprocket 202b are both arranged at the two ends of the output shaft of the driving motor 201. The chain 203 includes a first chain 203a and a second chain 203b. The first chain 203a is wound around the first sprocket 202a and the two ends of the first chain 203a are respectively connected to the lifting plate 204 and the lifting platform 3 on the side close to the driving motor 201. The second chain 203b is wound around the second sprocket 202b and the two ends of the second chain 203b are respectively connected to the lifting plate 204 and the lifting platform 3 on the side away from the driving motor 201.

[0035] Specifically, in this embodiment, connecting plates corresponding to the first chain 203a and the second chain 203b are arranged at the four corners of the lifting platform 3, which can simultaneously drive the first chain 203a and the second chain 203b to rotate through the driving motor 201, so as to realize the smooth adjustment of the lifting platform 3 and achieve a good lifting effect; a supporting sprocket 205 is arranged on the side of the frame 1 away from the driving motor 201, the middle part of the second chain 203b is wound around the supporting sprocket 205 and the second chain 203b is connected to the supporting sprocket 205 in transmission, and the supporting sprocket 205 can ensure the stable transmission of the second chain 203b, and the first sprocket 202a, the second sprocket 202b and the side of the supporting sprocket 205 are all provided with supporting bearings 206.

[0036] Reference Figure 1 The lifting plate 204 is a vertically arranged hollow plate structure. The lifting plate 204 is slidably arranged on the side of the frame 1. The weight of the lifting plate 204 is not less than the sum of the weights of the lifting platform 3, the detection box 4 and the conductive medium. An in-place detection mechanism 8 is arranged between the lifting plate 204 and the frame 1.

[0037] Specifically, the in-place detection mechanism 8 in this embodiment includes travel switches disposed on both sides of the lifting plate 204. There are two travel switches, which are respectively disposed at different heights of the lifting plate 204. The distance between the two travel switches corresponds to the lifting stroke of the lifting platform 3. The travel switches are vertically disposed on both sides of the lifting plate 204 and can be in contact with the outer side of the frame 1. The horizontal position of the lifting plate 204 is restricted by the travel switches, and the frame 1 is provided with positioning protrusions that can be in contact with the travel switches.

[0038] Referring to Figures 1 to 5 , in this embodiment, there are multiple detection boxes 4, and each detection box 4 is provided with a detection terminal 5 and an indicator light 7. The detection terminal 5 and the indicator light 7 are connected in series. The detection circuit is a resistance detection circuit. The detection terminals 5 and the indicator lights 7 in different detection boxes 4 are connected in parallel. The detection box 4 is provided with a pair of detection terminals 5. The detection terminals 5 are located at the lower part of the detection box 4 and there is a gap between the detection terminals 5. The detection box 4 is provided with a water inlet 401, an overflow port 402, and a water level line 403.

[0039] Embodiment 2:

[0040] Referring to Figure 6 , a dip coating product production line includes a conveying track 9 and the detection device of Embodiment 1. The conveying track 9 is disposed through the frame 1. The conveying track 9 is provided with hanging racks 901, and multiple groups of dip coating finished products are disposed on the hanging racks 901. The positions and quantities of the dip coating finished products correspond to the positions and quantities of the detection boxes 4. Sensors are disposed at positions corresponding to the detection boxes 4 on the conveying track 9, and the sensors can detect the positions of the hanging racks 901. The sensors are electrically connected to the lifting mechanism 2. Specifically, the sensors in this embodiment are infrared sensors, and the sensors are located in the middle of the frame 1 and directly above the detection boxes 4.

[0041] The implementation principle is as follows: In this application, by providing the frame 1 and the lifting mechanism 2 on the frame 1, and at the same time providing the detection box 4 on the lifting mechanism 2, the detection box 4 can be lifted by the lifting mechanism 2, so that the dip coating finished product can enter the conductive medium in the detection box 4. A detection circuit, a power supply, and an indicator light are electrically connected to the conductive medium. When defects such as pinholes, bubbles, or cracks appear on the dip coating finished product, the conductive medium will enter the defects, thereby causing a change in the resistance of the conductive medium. The indicator light on the detection circuit is used for alarm reminder. The staff marks or directly removes the dip coating finished product in the corresponding detection box 4. The detection time is short and the accuracy is high. It can adapt to the rapid production process of the assembly line, effectively improving the production efficiency and product quality.

[0042] When this application is used in combination with a dip coating production line, the conveying track 9 on the dip coating production line transports the hanger 901 with dip coating finished products to the detection device. A sensor electrically connected to the lifting mechanism 2 is provided at the position corresponding to the detection box 4 on the conveying track 9. After the sensor detects the arrival of the hanger, it sends a signal to the lifting mechanism 2. The driving motor 201 drives the sprocket 202 to rotate through the output shaft of the speed reducer. Since a chain 203 is provided on the sprocket and both ends of the chain 203 are respectively connected to the lifting plate 204 and the lifting platform 3, during the rotation process, the lifting plate descends and the lifting platform 3 ascends, and the dip coating finished product is put into the conductive medium in the detection box 4 for detection.

[0043] During the lifting process, since the first sprocket 202a and the second sprocket 202b are provided at both ends of the driving motor 201, the first chain 203a and the second chain 203b are respectively connected to the first sprocket 202a and the second sprocket 202b. One end of the first chain 203a and the second chain 203b is connected to the lifting plate 204. The other end of the first chain 203a is connected to the proximal end of the lifting platform 3. The second chain 203b bypasses the support sprocket 205 and is connected to the distal end of the lifting platform 3. The first sprocket 202a and the second sprocket 202b rotate in the same direction, driving the first chain 203a and the second chain 203b to rotate synchronously. The proximal end and the distal end of the lifting platform 3 are lifted and lowered simultaneously, and the lifting is stable. The lifting plate 204 and the lifting platform 3 move in opposite directions. A position detection mechanism 8 is provided on the side of the lifting plate 204. When the height of the lifting plate 204 drops to a suitable position, the lifting platform 3 rises synchronously to the detection position. At this time, the dip coating finished product completely enters the conductive medium and starts detection.

[0044] Since a power supply 6 is provided in the detection circuit, when a defect-free dip coating finished product enters the conductive medium, it is an insulator and the resistance in the detection circuit does not change, and the indicator light 7 lights green to indicate qualified; when a dip coating finished product with defects such as bubbles, pinholes or cracks enters the detection box 4, the conductive medium conducts with the dip coating finished product, the resistance of the detection circuit changes, the indicator light lights red and the corresponding buzzer alarms; after the driving motor 201 rotates forward for a certain time (such as 5 seconds), it rotates in reverse, driving the lifting platform 3 to descend. After the lifting platform 3 descends to a certain position, the position detection mechanism 8 is triggered and the lifting mechanism 2 stops operating. Then the conveying track 9 continues to operate, and the staff marks or removes the dip coating finished product with defects to ensure the quality of the finished product; repeating the above operations can detect all finished products on the dip coating product production line, and at the same time, the detection efficiency and detection accuracy are high, ensuring the production efficiency and production quality of the dip coating finished product.

[0045] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A detection device, characterized in that: The invention comprises a frame (1), wherein a lifting mechanism (2) is arranged on the frame (1), wherein a lifting platform (3) is connected to the lifting mechanism (2), wherein a detection box (4) is arranged on the lifting platform (3), wherein a conductive medium is arranged in the detection box (4) and a detection circuit is connected to the conductive medium, and the dip-molded finished product can be electrically tested through the conductive medium. When a defect occurs on the dip-molded finished product, the conductive medium will enter the defect and contact the metal material inside the dip-molded finished product, causing the resistance of the conductive medium to change. A detection terminal (5) is arranged on the detection box (4), and the detection terminal (5) is electrically connected to the detection circuit. The detection circuit is electrically connected to a power supply (6) and an indicator light (7).

2. A detection device according to claim 1, characterized in that: The lifting mechanism (2) comprises a driving motor (201) arranged on the upper part of the frame (1); a sprocket (202) is drivingly connected to the output shaft of the driving motor (201); a chain (203) is wound around the sprocket (202); the chain (203) is drivingly connected to the sprocket (202); one end of the chain (203) is connected to a lifting plate (204); and the other end of the chain (203) is connected to the lifting platform (3).

3. A detection device according to claim 2, characterized in that: The sprocket (202) comprises a first sprocket (202a) and a second sprocket (202b), the first sprocket (202a) and the second sprocket (202b) are both arranged in pairs, and the first sprocket (202a) and the second sprocket (202b) are both arranged at two ends of an output shaft of the drive motor (201); the chain (203) comprises a first chain (203a) and a second chain (203b), the first chain (203a) is wound around the first sprocket (202a), and two ends of the first chain (203a) are respectively connected to a side of the lifting plate (204) and the lifting platform (3) close to the drive motor (201); the second chain (203b) is wound around the second sprocket (202b), and two ends of the second chain (203b) are respectively connected to a side of the lifting plate (204) and the lifting platform (3) away from the drive motor (201).

4. A detection device according to claim 3, characterized in that: A support sprocket (205) is provided on a side of the frame (1) away from the drive motor (201), a middle portion of the second chain (203b) is wound around the support sprocket (205), and the second chain (203b) is transmission-connected to the support sprocket (205).

5. A detection device according to claim 4, characterized in that: Support bearings (206) are provided on the side surfaces of the first sprocket (202a), the second sprocket (202b) and the support sprocket (205).

6. A detection device according to claim 2, characterized in that: The lifting plate (204) is a vertically arranged hollow plate-shaped structure, the lifting plate (204) is slidably arranged on the side of the frame (1), and the weight of the lifting plate (204) is not less than the sum of the weights of the lifting platform (3), the detection box (4) and the conductive medium.

7. A detection device according to claim 2, characterized in that: An in-position detection mechanism (8) is provided between the lifting plate (204) and the frame (1).

8. A detection device according to claim 1, characterized in that: There are a plurality of detection boxes (4), and each detection box (4) is provided with the detection terminal (5) and the indicator light (7), the detection terminal (5) and the indicator light (7) are connected in series, the detection circuit is a resistance detection circuit, and the detection terminals (5) and the indicator lights (7) in different detection boxes (4) are connected in parallel.

9. A detection device according to claim 8, characterized in that: The detection box (4) is provided with a pair of detection terminals (5), the detection terminals (5) are located at the bottom of the detection box (4) and a gap is provided between the detection terminals (5), and the detection box (4) is provided with a water inlet (401), a water overflow (402) and a water level line (403).

10. A plastic dipping production line, comprising the detection device according to any one of claims 1 to 9, characterized in that: It also comprises a conveying track (9), the conveying track (9) being arranged through the frame (1), a hanging rack (901) being arranged on the conveying track (9), and a plurality of groups of finished products of plastic dipping being arranged on the hanging rack (901), the positions and quantities of the finished products of plastic dipping corresponding to the positions and quantities of the detection box (4), a sensor being arranged at a position corresponding to the detection box (4) on the conveying track (9), and the sensor being capable of detecting the position of the hanging rack (901), and the sensor being electrically connected to the lifting mechanism (2).

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