PTC (Positive Temperature Coefficient) detection and classification device

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) detection and classification device, which comprises a feeding device, a detection device, a sorting device and a control device, and is characterized in that the feeding device comprises a feeding runner, and baffle plates are arranged on two sides of the feeding runner; the transferring tool comprises a rotating disc, the rotating disc is provided with a plurality of bearing bases, and containing grooves used for containing products are formed in the bearing bases. The size detection device comprises a length detection assembly, a width detection assembly and a thickness detection assembly; the resistance detection device comprises a detection probe; and the sorting and blanking device comprises a downward pressing piece and a driving piece, and the downward pressing piece is driven by the driving piece to enable the products to be separated from the containing grooves and pass through blanking holes formed in the rotating disc. The beneficial effects of the utility model lie in that automatic detection of PTC length, width, thickness and resistance is realized, the detection efficiency is improved, and the detection precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of PTC technology, specifically to a PTC detection and classification device. Background Technology

[0002] PTC elements are key components in the manufacture of PTC electric heaters, possessing excellent characteristics such as rapid start-up, automatic temperature control, stable heating, and intrinsic safety. Therefore, they are widely used in auxiliary heaters for household air conditioners, heaters for washing machine dryers, heaters for material drying, heaters for food processing, and electric water heaters. In PTC production, a series of processing and testing processes are required, including dimensional testing and resistance testing. Currently, dimensional inspection and resistance testing are performed separately, requiring transfer between different workstations, which is time-consuming and mostly involves manual inspection, resulting in inconsistent testing accuracy. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a PTC detection and classification device, which realizes automatic detection and classification of PTC size and resistance, reduces product handling, improves detection efficiency, and has high detection accuracy.

[0004] Specifically, this utility model discloses a PTC detection and classification device, comprising:

[0005] A feeding device includes a feeding channel, and baffles are provided on both sides of the feeding channel;

[0006] The transfer fixture includes a rotating disk with multiple receiving seats, each containing a receiving groove for accommodating products; and arranged sequentially along the circumference of the rotating disk are:

[0007] A dimension detection device, including a length detection component, a width detection component, and a thickness detection component;

[0008] A resistance detection device, including a detection probe;

[0009] The sorting and unloading device includes a pressing component and a driving component. The pressing component, driven by the driving component, causes the product to be ejected from the receiving groove and pass through the unloading hole provided on the rotating disk.

[0010] The advantage of adopting the above technical solution is that it enables automatic detection of the length, width, thickness and resistance of PTC, improves detection efficiency and ensures detection accuracy.

[0011] Furthermore, the receiving seat includes an inclined base plate and side plates, the base plate is provided with a through hole, the side plates form a receiving groove, and a liftable baffle is provided on the side of the receiving groove.

[0012] The advantage of adopting the above technical solution is that, after the baffle descends, the product slides out of the receiving groove to different dropping positions.

[0013] Furthermore, connecting blocks are connected to both sides of the baffle, and a guide shaft is connected to the lower side of the connecting blocks. The guide shaft is located on both sides of the discharge hole and moves up and down.

[0014] The advantage of adopting the above technical solution is that the baffle moves up and down along the guide shaft to ensure the position of the baffle and ensure that the product falls into the discharge hole.

[0015] Furthermore, a detection station is provided at the end of the feeding channel, and the width detection component is located on the side of the detection station.

[0016] The advantage of adopting the above technical solution is that it enables the detection of product width, continuous feeding of the feed channel, and movement of the product within the feed channel.

[0017] Furthermore, the length detection component includes a length detection sensor disposed toward the receiving groove for detecting the product length.

[0018] The advantage of adopting the above technical solution is that the length sensor enables accurate and rapid detection of the product's length.

[0019] Furthermore, the thickness detection assembly includes a mounting bracket and a thickness sensor disposed above and below the receiving groove.

[0020] The advantage of adopting the above technical solution is that the thickness sensors set at the top and bottom enable accurate and fast thickness detection of the product.

[0021] Furthermore, the detection probes are symmetrically arranged vertically, facing the receiving groove on the receiving seat. The detection probes are mounted via a mounting plate, which is connected to a lifting cylinder.

[0022] The advantage of adopting the above technical solution is that the detection probe can detect the product resistance after being powered on. At the same time, the detection probe can also be raised and lowered. During the detection, the detection probes on both sides contact the product, and after the detection, they separate from the product, and the product continues to be transported.

[0023] Furthermore, the sorting and unloading device also includes a connecting plate, which is provided with multiple fixing plates. The driving component is mounted on the fixing plate, and the pressing component presses down on the baffle, causing the product to be ejected from the receiving groove.

[0024] The advantage of adopting the above technical solution is that, in order to classify products of different sizes and resistance values, multiple pressing components are set up. After the tested products arrive at the corresponding positions, the pressing components press down the baffles, and the products pass through the dropping holes to complete the classification.

[0025] Furthermore, a spring is fitted onto the guide shaft.

[0026] The advantage of adopting the above technical solution is that the spring setting enables the baffle to automatically return to its original position. After the pressing part stops pressing down and the products are sorted, the baffle returns to its original position, and the rotating disk and the receiving seat continue to receive the products. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This is a schematic diagram of the overall structure of the PTC detection and classification device of this utility model.

[0029] Figure 2 This is an enlarged view of section A of this utility model.

[0030] Figure 3 This is an enlarged view of section B of this utility model.

[0031] Figure 4 This is an enlarged view of section C of this utility model.

[0032] The reference numerals used in the attached figures are as follows:

[0033] 1. Feeding channel; 11. Baffle plate; 12. Inspection station; 2. Rotary disk; 21. Discharge hole; 3. Receiving seat; 31. Receiving groove; 32. Base plate; 33. Baffle plate; 34. Connecting block; 35. Guide shaft; 4. Length detection assembly; 41. Length detection sensor; 5. Width detection assembly; 6. Thickness detection assembly; 61. Mounting bracket; 62. Thickness sensor; 7. Resistance detection device; 71. Detection probe; 72. Mounting plate; 73. Lifting cylinder; 8. Sorting and discharge device; 81. Pressing component; 82. Driving component; 83. Connecting plate; 84. Fixing plate. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] like Figure 1 As shown, this utility model discloses a PTC detection and classification device, comprising:

[0036] The feeding device includes a feeding channel 1, on both sides of the feeding channel 1 are baffles 11, and a passage groove for the product to pass through is formed between the baffles 11 on both sides of the baffles 11.

[0037] The transfer fixture includes a rotating disk 2, which is provided with multiple receiving seats 3. The receiving seats 3 are arranged at multiple locations along the outer circumference of the rotating disk 2, and each receiving seat 3 has a receiving groove 31 for accommodating products. The following are arranged sequentially along the circumference of the rotating disk 2:

[0038] The size detection device includes a length detection component 4, a width detection component 5, and a thickness detection component 6;

[0039] The resistance detection device 7 includes a detection probe 71;

[0040] The sorting and unloading device 8 includes a pressing component 81 and a driving component 82. The pressing component 81, driven by the driving component 82, causes the product to be ejected from the receiving groove 31 and pass through the unloading holes 21 set on the rotating disk 2. There are multiple unloading holes 21, which are evenly arranged along the circumference of the rotating disk 2. Each receiving seat 3 corresponds to one unloading hole 21.

[0041] The advantage of adopting the above technical solution is that it enables automatic detection of the length, width, thickness and resistance of PTC, improves detection efficiency and ensures detection accuracy.

[0042] Furthermore, a rotating shaft is installed in the middle of the rotating disk 2, and a drive motor is connected to the lower side of the rotating shaft. The rotating shaft is driven to rotate by the motor, which in turn drives the rotating disk 2 to rotate. The product transfer is achieved by driving the rotating disk to rotate through the rotating shaft, which is existing technology and is not shown in the figure.

[0043] In some implementation schemes (such as) Figure 2 As shown, the receiving seat 3 includes an inclined base plate 32 and side plates. The base plate 32 has a through hole through which the detection signals of various detection components pass, but the product will not fall out of the through hole. The side plates are attached to both sides of the base plate 32 by screws, and a receiving groove 31 is formed between the side plates. A liftable baffle 33 is provided on the side of the receiving groove 31. After the product enters the receiving groove 31, it will not fall out due to the obstruction of the baffle 33.

[0044] Furthermore, connecting blocks 34 are connected to both sides of the baffle 33, and a guide shaft 35 is connected to the lower side of the connecting blocks 34. The guide shaft 35 and the connecting blocks 34 are fixed by screws. The guide shaft 35 is located on both sides of the discharge hole 21, passes through the rotating disk 2 as a whole, and moves up and down. A spring is sleeved on the guide shaft 35. The spring is located between the connecting blocks 34 and the rotating disk 2. When there is no pressure, the spring is in an uncompressed state, and the baffle 33 blocks the side of the receiving groove 31.

[0045] In some implementation schemes, the feeding channel 1 uses a vibratory feeder for feeding. The vibratory feeder is connected to the feeding channel 1. Vibratory feeder feeding is an existing technology. The vibratory feeder arranges the products into the feeding channel 1. The entire feeding channel 1 has a certain inclination angle. A detection station 12 is set at the end of the feeding channel 1. The two sides of the detection station 12 are unobstructed. The width detection component 5 is set on the side of the detection station 12. The width detection component 5 is set on the displacement sensors on both sides. The width of the product is detected by the two displacement sensors. After the detection is completed, feeding continues. The arranged products continue to move and squeeze the detected products into the receiving seat 3. Then the products located at the detection station 12 continue to be detected.

[0046] In some implementations, the length detection component 4 includes a length detection sensor 41, which is positioned toward the receiving groove 31 and is used to detect the product length. The length detection sensor 41 is also a displacement sensor. Since the distance between the displacement sensor and the baffle 33 of the receiving groove 31 is fixed, only one displacement sensor is needed to determine the product length. The rotating disk 2 rotates continuously to achieve continuous length detection.

[0047] In some implementations, the thickness detection component 6 includes a mounting bracket 61 and thickness sensors 62 disposed above and below the receiving groove 31. The mounting bracket 61 is fixed on the fixed platform and does not rotate with the rotating disk 2. The thickness sensor 62 is also a displacement sensor. The displacement sensors disposed above and below enable the detection of thickness, which is accurate and fast.

[0048] Furthermore, the detection probes 71 are symmetrically arranged vertically, facing the receiving groove 31 on the receiving seat 3. The detection probes 71 are mounted via a mounting plate 72, which is connected to a lifting cylinder 73. Two detection probes 71 are mounted on each mounting plate 72, and the detection probes 71 are connected to connecting wires. After being energized, they can detect the resistance value of the product. During detection, the detection probes 71 on both sides contact the upper and lower surfaces of the product. After detection, they separate from the product, and the product continues to be transported. At the same time, the resistance detection device 7 is set in two sets, so that a product undergoes two tests to ensure accurate detection results.

[0049] In some implementations, the sorting and unloading device 8 also includes a connecting plate 83, which is provided with multiple fixing plates 84. The multiple fixing connecting plates 83 are evenly arranged along the circumference of the rotating disk 2. The driving component 82 is a cylinder mounted on the fixing plate 84. The bottom of the pressing component 81 is provided with a protrusion. The protrusion contacts the connecting blocks 34 on both sides of the baffle 33, pressing the baffle 33 downward. The product is ejected from the receiving groove 31 and falls from the unloading hole 21 into the receiving box placed on the lower side, thus realizing product sorting.

[0050] In the working process, the vibratory feeder first loads the products, which are then arranged and enter the feeding channel 1. They then proceed to the inspection station 12 for width detection. After inspection, they enter the receiving slot 31 on the receiving seat 3. At this point, the rotating disk 2 rotates one station to reach the length detection position, where the length sensor detects the product length. The rotating disk 2 continues to rotate for thickness detection, and then rotates to the resistance detection device 7. Resistance is detected twice via the detection probe 71. After the detection is completed, products that do not meet the size requirements are first unloaded and collected. Then, they are classified according to the measured resistance values. Each pressing component 81 corresponds to a resistance value range. The rotating disk 2 drives the inspected products to the corresponding pressing component 81 to complete the unloading, thus achieving automatic product detection and classification, improving detection efficiency, and reducing detection time.

[0051] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A PTC detection classification device, characterized by, The utility model relates to a product size detection and sorting device, including: The upper feeder device includes an upper feeder flow channel (1), and the upper feeder flow channel (1) is provided with a baffle (11) on both sides; The transfer tool includes a rotating disc (2), and the rotating disc (2) is provided with a plurality of receiving seats (3), the receiving seat (3) is provided with a containing groove (31) for containing products, and a size detection device, an electric resistance detection device (7) and a sorting and discharging device (8) are sequentially arranged along the circumferential direction of the rotating disc (2). The size detection device includes a length detection assembly (4), a width detection assembly (5) and a thickness detection assembly (6); The electric resistance detection device (7) includes a detection probe (71); The sorting and discharging device (8) includes a pressing piece (81) and a driving piece (82), and the pressing piece (81) is driven by the driving piece (82) to make the product out of the containing groove (31) and pass through the discharging hole (21) arranged on the rotating disc (2).

2. The PTC detection classification device of claim 1, wherein The receiving seat (3) includes an inclined bottom plate (32) and a side plate, the bottom plate (32) is provided with a through hole, the side plate forms the containing groove (31) between the side plates, and a liftable baffle (33) is arranged on the side surface of the containing groove (31).

3. The PTC detection classification device of claim 2, wherein The baffle (33) is connected with a connecting block (34) on both sides, the lower side of the connecting block (34) is connected with a guide shaft (35), and the guide shaft (35) is located on both sides of the discharging hole (21) and moves up and down.

4. The PTC detection classification apparatus according to claim 1, characterized by The upper end of the upper feeder flow channel (1) is provided with a detection station (12), and the width detection assembly (5) is arranged on the side surface of the detection station (12).

5. The PTC detection classification apparatus of claim 1, wherein The length detection assembly (4) includes a length detection sensor (41), and the length detection sensor (41) is arranged towards the containing groove (31) and used for detecting the length of the product.

6. The PTC detection classification apparatus of claim 1, wherein The thickness detection assembly (6) includes a mounting bracket (61) and a thickness sensor (62) arranged above and below the containing groove (31).

7. The PTC detection classification apparatus of claim 1, wherein The detection probe (71) is symmetrically arranged up and down and is arranged towards the containing groove (31) on the receiving seat (3), the detection probe (71) is installed through a mounting plate (72), and the mounting plate (72) is connected with a lifting cylinder (73).

8. The PTC detection classification apparatus of claim 2, wherein The sorting and discharging device (8) further includes a connecting plate (83), the connecting plate (83) is provided with a plurality of fixed plates (84), the driving piece (82) is mounted on the fixed plate (84), the pressing piece (81) presses the baffle (33), and the product is out of the containing groove (31).

9. The PTC detection classification apparatus of claim 3, wherein The guide shaft (35) is provided with a spring.

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