Pan opening detection device for pan
The combination of a potentiometer-type displacement sensor and a detection wheel solves the problem of visual error when inspecting the pan mouth with the naked eye, achieving efficient and accurate pan mouth detection and fixation.
Patent Information
- Application Number
- CN202510511054.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, visual inspection of the pan opening is prone to visual errors, resulting in insufficient detection accuracy.
A potentiometer-type displacement sensor and a detection wheel are combined. The detection wheel rolls along the pot mouth, and the displacement sensor transmits the pot mouth contour to the resistance ring. Combined with the detection baseline, the regularity of the pot mouth is judged.
The accuracy of pan mouth detection is improved, and the clamping mechanism is used to ensure that the pan mouth does not tip over, thereby achieving an efficient and accurate detection process.
Smart Images
Figure CN120593607A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of detection facilities, and in particular to a device for detecting the opening of a frying pan. Background Art
[0002] A frying pan is a utensil used for cooking or frying food, typically with a diameter of 20 to 30 cm. It is often made of lightweight metals such as aluminum or stainless steel. Frying pans are suitable for roasting, baking, steaming, grilling, or stir-frying seafood, meat, and poultry. During the production process, the rim of the pan is often inspected for regularity to ensure a tight fit with the lid.
[0003] During actual inspection, the rim of the pan is mainly observed with the naked eye to determine whether it is regular. However, since visual errors are prone to occur when observing the rim of the pan directly with the naked eye, the observed contour shape of the rim of the pan is inconsistent with the actual shape, which seriously affects the accuracy of inspection. Therefore, a device for contour detection using a potentiometer-type displacement sensor is designed. Summary of the Invention
[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a device for detecting the pot mouth of a frying pan.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a device for detecting the pot mouth of a frying pan, comprising a base, a lifting platform is provided at the rear upper end of the base, a rod seat is fixedly installed at the front end of the lifting platform, a shaft rod is rotatably installed through the middle of the rod seat, an extension frame is embedded in the lower end of the shaft rod, a pressure frame is elastically installed through the end of the extension frame, a detection wheel is connected to the lower end of the pressure frame, a displacement sensor is connected to the upper end of the pressure frame, a resistance ring is coaxially provided on the outer side of the shaft rod, the contact of the displacement sensor corresponds to the middle part of the inner surface of the resistance ring, a detection baseline is provided on the upper inner surface of the resistance ring, an assembly is provided between the resistance ring and the rod seat, and a pot fixing part is installed at the front upper end of the base.
[0006] Preferably, a fixing bracket is fixedly installed on the rear upper end of the base, a threaded rod is rotatably installed on the middle front end of the fixing bracket, the lifting platform is screwed to the outer surface of the threaded rod, guide rods are provided on both sides of the threaded rod, both ends of the guide rods are fixed to the fixing bracket, the lifting platform is slidably installed on the outer surface of the guide rod, a No. 2 servo motor is fixedly installed on the upper front end of the fixing bracket, and the output end of the No. 2 servo motor is fixed to the threaded rod.
[0007] Preferably, the upper end of the shaft is connected to a No. 1 servo motor, the No. 1 servo motor is fixed on the lifting platform, the lower end of the pressure frame is inlaid with a wheel seat, and the detection wheel is installed inside the wheel seat.
[0008] Preferably, a compression spring is wound around the outside of the pressure frame, the upper end of the compression spring is fixed to the extension frame, the lower end of the pressure frame is fixed to the wheel seat, and the outer surface of the pressure frame is inlaid with an anti-drop cap, which is attached to the upper end of the extension frame.
[0009] Preferably, a fixing sleeve is fixedly installed on the upper end of the pressure frame, the displacement sensor passes through the interior of the fixing sleeve, the outer surface of the displacement sensor fits with the inner surface of the fixing sleeve, and a clamping bolt is passed through the upper end of the fixing sleeve and tightened, and the clamping bolt is pressed on the displacement sensor.
[0010] Preferably, the assembly includes a fixed ring frame fixedly mounted on the front end of the resistance ring, an angle groove is opened at the end of the rod seat, the end of the fixed ring frame is tightly attached to the inside of the angle groove, a shell is fixedly mounted on the side of the rod seat, an assembly pin is coaxially arranged inside the shell, both ends of the assembly pin pass through the two sides of the shell, the shell and the assembly pin slide together, one end of the assembly pin passes through between the rod seat and the fixed ring frame, a fixing spring is wound around the outside of the assembly pin, a pin cap is coaxially inlaid on the outer surface of the assembly pin, the pin cap is attached to the inner surface of the shell, one end of the fixing spring is fixed to the pin cap, and the other end of the fixing spring is fixed to the inner side of the shell.
[0011] Preferably, the pot fixing part includes a detection platform fixedly mounted on the front upper end of the base, two positioning rings extending symmetrically from the upper end of the detection platform, the center line of the positioning ring is collinear with the center line of the shaft, a threaded column is mounted on the lower end of the detection platform, the threads at both ends of the threaded column are symmetrically arranged, threaded sleeves are screwed onto both ends of the threaded column, clamping rings are fixedly mounted on the ends of the two threaded sleeves, and the two clamping rings are symmetrically arranged.
[0012] Preferably, a protruding ear is rotatably mounted on the outer surface of the threaded column, the end of the protruding ear is fixed to the detection table, a guide frame is extended from the side of the protruding ear, a concave slide is extended from the lower end of the threaded sleeve, and the concave slide is slidably mounted on the outer surface of the guide frame, one end of the threaded column is coaxially inlaid with a gear, the rear part of the gear is engaged with a tooth plate, the rear end of the tooth plate is fixedly mounted with a push plate frame, and the end of the push plate frame is fixed to the lifting platform.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The descending lifting platform drives the detection wheel downward, pressing it against the rim of the pan. The compression spring contracts and deforms, and the No. 1 servo motor drives the extension bracket on the shaft to rotate in a circle, allowing the detection wheel to roll along the rim of the pan. During this process, the displacement sensor moves synchronously with the detection wheel to transmit the contour of the rim of the pan to the resistance ring. By observing whether the uploaded travel curve is parallel to the detection baseline, you can intuitively see whether the rim of the pan is regular, thereby effectively improving the accuracy of the detection.
[0015] 2. After the pan is placed between the two positioning rings on the testing platform and positioned, the lifting platform moves down for testing, which will simultaneously drive the toothed plate on the push plate frame to move downward, thereby driving the gear to rotate, which in turn drives the threaded column to rotate. The two threaded sleeves move toward each other due to the symmetrical arrangement of the threads at both ends of the threaded column, and then drive the two clamping rings to move toward each other, thereby automatically clamping and fixing the positioned pan to ensure that the pan will not tip over during the testing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic structural diagram of a device for detecting the opening of a frying pan according to the present invention;
[0017] Figure 2 The present invention is a device for detecting the opening of a frying pan Figure 1 A magnified view of middle A;
[0018] Figure 3 The present invention is a device for detecting the opening of a frying pan Figure 1 Enlarged view of middle B;
[0019] Figure 4 This is a schematic diagram of a displacement sensor for a pan mouth detection device according to the present invention;
[0020] Figure 5 This is an internal view of a housing of a device for detecting the opening of a frying pan according to the present invention;
[0021] Figure 6 The present invention is a device for detecting the opening of a frying pan Figure 1 Enlarged view of C in the middle.
[0022] In the figure: 1. base; 2. detection table; 3. positioning ring; 4. clamping ring; 5. resistance ring; 6. shaft; 7. threaded sleeve; 8. rod seat; 9. No. 1 servo motor; 10. lifting platform; 11. No. 2 servo motor; 12. fixing frame; 13. push plate frame; 14. fixing ring frame; 15. housing; 16. fixing spring; 17. assembly pin; 18. pin cap; 19. guide rod; 20. extension frame; 21. fixing sleeve; 22. angle groove; 23. pressure frame; 24. anti-drop cap; 25. displacement sensor; 26. clamping bolt; 27. detection baseline; 28. compression spring; 29. wheel seat; 30. detection wheel; 31. tooth plate; 32. gear; 33. concave slide; 34. threaded column; 35. guide frame; 36. extension ear; 37. threaded rod. DETAILED DESCRIPTION
[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.
[0024] like Figures 1-6 The device shown is a pan mouth detection device, comprising a base 1, a lifting platform 10 is provided at the rear upper end of the base 1, a rod seat 8 is fixedly installed at the front end of the lifting platform 10, a shaft 6 is rotatably installed through the middle of the rod seat 8, and the rod seat 8 plays a role in supporting the shaft 6, the lower end of the shaft 6 is inlaid with an extension frame 20, the end of the extension frame 20 is elastically installed with a pressure frame 23, the extension frame 20 plays a role in supporting the pressure frame 23, the lower end of the pressure frame 23 is connected to a detection wheel 30, the shaft 6 can drive the detection wheel 30 to roll on the pan mouth, the upper end of the pressure frame 23 is connected to a displacement sensor 25, the outer end of the shaft 6 A resistance ring 5 is coaxially arranged on the side, and the displacement sensor 25 can contact the outline of the pan mouth on the resistance ring 5. The contact of the displacement sensor 25 corresponds to the middle of the inner surface of the resistance ring 5. When the contact moves, the change of the resistance value will be converted into a change of the output voltage. The displacement can be calculated by measuring the voltage. A detection baseline 27 is set on the upper part of the inner surface of the resistance ring 5. The detection baseline 27 can be used as a reference line for comparison with the detected outline. The progress curve can be obtained on the computer side, and then it can be seen whether the pan mouth is regular. An assembly is provided between the resistance ring 5 and the rod seat 8, and a pot fixing part is installed on the upper front end of the base 1.
[0025] A fixing frame 12 is fixedly installed on the rear upper end of the base 1, and a threaded rod 37 is rotatably installed on the middle part of the front end of the fixing frame 12. The fixing frame 12 carries the threaded rod 37 and the guide rod 19. The lifting platform 10 is screwed to the outer surface of the threaded rod 37, and the threaded rod 37 drives the lifting platform 10 to move up and down. Guide rods 19 are provided on both sides of the threaded rod 37. The two ends of the guide rod 19 are fixed to the fixing frame 12. The lifting platform 10 is slidably installed on the outer surface of the guide rod 19, and the guide rod 19 guides the lifting platform 10. A No. 2 servo motor 11 is fixedly installed on the upper front end of the fixing frame 12. The output end of the No. 2 servo motor 11 is fixed to the threaded rod 37, and the No. 2 servo motor 11 drives the threaded rod 37 to rotate.
[0026] The upper end of the shaft 6 is connected to a servo motor No. 1 9, which is fixed on the lifting platform 10. The servo motor No. 1 drives the shaft 6 to rotate. The lower end of the pressure frame 23 is embedded with a wheel seat 29, and the detection wheel 30 is installed inside the wheel seat 29. The wheel seat 29 supports the detection wheel 30.
[0027] A compression spring 28 is wound around the outside of the pressure frame 23, and the upper end of the compression spring 28 is fixed to the extension frame 20. The compression spring 28 can press the detection wheel 30 against the pot mouth of the frying pan, so that when it moves, it can move along the contour of the pot mouth of the frying pan, thereby driving the displacement sensor 25 to move, so as to accurately convert the contour of the pot mouth of the frying pan onto the resistance ring 5. The lower end of the pressure frame 23 is fixed to the wheel seat 29, and the outer surface of the pressure frame 23 is inlaid with an anti-slip cap 24, which is attached to the upper end of the extension frame 20. The anti-slip cap 24 prevents the pressure frame 23 from separating from the extension frame 20.
[0028] A fixing sleeve 21 is fixedly installed on the upper end of the pressure frame 23, and the displacement sensor 25 passes through the interior of the fixing sleeve 21. The fixing sleeve 21 serves to load the displacement sensor 25. The outer surface of the displacement sensor 25 fits with the inner surface of the fixing sleeve 21. A clamping bolt 26 is passed through the upper end of the fixing sleeve 21 and tightened. The clamping bolt 26 is pressed on the displacement sensor 25, and the clamping bolt 26 serves to fix the displacement sensor 25 in the fixing sleeve 21.
[0029] The assembly includes a fixed ring frame 14 fixedly mounted on the front end of the resistance ring 5, an angle groove 22 is opened at the end of the rod seat 8, the end of the fixed ring frame 14 is tightly attached to the inside of the angle groove 22, and the angle groove 22 can be engaged with the fixed ring frame 14 to improve the firmness between the fixed ring frame 14 and the rod seat 8. A shell 15 is fixedly mounted on the side of the rod seat 8, and an assembly pin 17 is coaxially arranged inside the shell 15. The shell 15 plays a role in carrying the assembly pin 17. The two ends of the assembly pin 17 pass through the two sides of the shell 15. The shell 15 slides with the assembly pin 17, and one end of the assembly pin 17 is engaged with the other end of the assembly pin 17. The end passes through between the rod seat 8 and the fixed ring frame 14, and the assembly pin 17 plays the role of assembling the rod seat 8 and the fixed ring frame 14 together. A fixing spring 16 is wound around the outside of the assembly pin 17, and a pin cap 18 is coaxially inlaid on the outer surface of the assembly pin 17. The pin cap 18 fits the inner surface of the outer shell 15, and the pin cap 18 plays the role of being pushed by the fixing spring 16. One end of the fixing spring 16 is fixed to the pin cap 18, and the fixing spring 16 plays the role of pushing the assembly pin 17 between the rod seat 8 and the fixed ring frame 14, and the other end of the fixing spring 16 is fixed to the inner side of the outer shell 15.
[0030] The pot fixing part includes a detection table 2 fixedly mounted on the front upper end of the base 1. The detection table 2 serves to support the frying pan. Two positioning rings 3 are symmetrically extended from the upper end of the detection table 2. The center line of the positioning ring 3 is collinear with the center line of the shaft 6. The positioning ring 3 can position the frying pan so that the center of the frying pan can correspond to the shaft 6. A threaded column 34 is installed at the lower end of the detection table 2. The threads at both ends of the threaded column 34 are symmetrically arranged, which can drive the two threaded sleeves 7 to move synchronously toward each other. The two ends of the threaded column 34 are tightened with threaded sleeves 7. The ends of the two threaded sleeves 7 are fixedly mounted with clamping rings 4. The two clamping rings 4 are symmetrically arranged. The clamping rings 4 serve to clamp and fix the frying pan.
[0031] The outer surface of the threaded column 34 is rotatably mounted with a protruding ear 36, and the end of the protruding ear 36 is fixed to the testing platform 2. The protruding ear 36 serves to support the threaded column 34, and a guide frame 35 is extended from the side of the protruding ear 36. The lower end of the threaded sleeve 7 is extended with a concave slide 33, and the concave slide 33 is slidably mounted on the outer surface of the guide frame 35. The guide frame 35 and the concave slide 33 serve to guide the threaded sleeve 7. One end of the threaded column 34 is coaxially inlaid with a gear 32, and the rear portion of the gear 32 is engaged with a toothed plate 31. The gear 32 and the toothed plate 31 serve to allow the threaded column 34 to rotate. The rear end of the toothed plate 31 is fixedly mounted with a push plate frame 13, which serves to fix the toothed plate 31 and the lifting platform 10 together, and the end of the push plate frame 13 is fixed to the lifting platform 10.
[0032] During the inspection, the pan is first placed between the two positioning rings 3 on the inspection platform 2 to be positioned so that the center of the pan can correspond to the shaft 6. Then, the second servo motor 11 is driven to rotate the threaded rod 37, so that the lifting platform 10 screwed on the threaded rod 37 moves downward, and the lifting platform 10 moves downward to drive the inspection wheel 30 to press on the pot mouth of the pan. At this time, the compression spring 28 contracts and deforms. In this process, the lifting platform 10 that moves downward will also synchronously drive the toothed plate 31 on the push plate frame 13 to move downward, thereby driving the gear 32 to rotate, thereby driving the threaded column 34 to rotate, so that the two threaded sleeves 7 move toward each other under the action of the symmetrical arrangement of the threads at both ends of the threaded column 34, thereby driving the two clamping rings 4 The two wheels move toward each other to clamp and fix the positioned frying pan by themselves, and then the No. 1 servo motor 9 drives the extension frame 20 on the shaft 6 to rotate in a circle, so that the detection wheel 30 can roll along the pot mouth of the frying pan. During this process, the displacement sensor 25 moves synchronously with the detection wheel 30 to transmit the contour of the pot mouth of the frying pan to the resistance ring 5. At this time, by observing whether the contours of the transmitted travel curve are parallel to the detection baseline 27, it can be concluded whether the pot mouth of the frying pan is regular. At the same time, the assembly pin 17 can be directly pulled to disengage the assembly pin 17 from between the fixed ring frame 14 and the rod seat 8, and then the fixed ring frame 14 can be directly pulled to disengage it from the corner groove 22, so that the resistance ring 5 can be disassembled for easy maintenance and for use next time.
[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for detecting the opening of a frying pan, comprising a base (1), characterized in that: A lifting platform (10) is provided at the rear of the upper end of the base (1), a rod seat (8) is fixedly installed at the front end of the lifting platform (10), a shaft (6) is rotatably installed through the middle of the rod seat (8), a protruding frame (20) is embedded at the lower end of the shaft (6), a pressing frame (23) is elastically installed through the end of the protruding frame (20), a detection wheel (30) is connected to the lower end of the pressing frame (23), a displacement sensor (25) is connected to the upper end of the pressing frame (23), a resistance ring (5) is coaxially provided on the outer side of the shaft (6), a contact of the displacement sensor (25) corresponds to the middle of the inner surface of the resistance ring (5), a detection baseline (27) is provided on the upper inner surface of the resistance ring (5), an assembly is provided between the resistance ring (5) and the rod seat (8), and a pot fixing part is installed at the front of the upper end of the base (1).
2. The pan mouth detection device according to claim 1, characterized in that: A fixing frame (12) is fixedly installed at the rear of the upper end of the base (1), a threaded rod (37) is rotatably installed at the middle of the front end of the fixing frame (12), the lifting platform (10) is screwed to the outer surface of the threaded rod (37), and guide rods (19) are provided on both sides of the threaded rod (37), both ends of the guide rod (19) are fixed to the fixing frame (12), the lifting platform (10) is slidably installed on the outer surface of the guide rod (19), and a No. 2 servo motor (11) is fixedly installed at the upper front end of the fixing frame (12), and the output end of the No. 2 servo motor (11) is fixed to the threaded rod (37).
3. The pan mouth detection device according to claim 1, characterized in that: The upper end of the shaft (6) is connected to a No. 1 servo motor (9), which is fixed on a lifting platform (10). The lower end of the pressing frame (23) is inlaid with a wheel seat (29), and the detection wheel (30) is installed inside the wheel seat (29).
4. The pan mouth detection device according to claim 3, characterized in that: A compression spring (28) is wound around the outside of the pressure frame (23), the upper end of the compression spring (28) is fixed to the extension frame (20), the lower end of the pressure frame (23) is fixed to the wheel seat (29), and the outer surface of the pressure frame (23) is inlaid with an anti-drop cap (24), and the anti-drop cap (24) is attached to the upper end of the extension frame (20).
5. The pan mouth detection device according to claim 1, characterized in that: A fixing sleeve (21) is fixedly mounted on the upper end of the pressure frame (23); the displacement sensor (25) passes through the interior of the fixing sleeve (21); the outer surface of the displacement sensor (25) is in contact with the inner surface of the fixing sleeve (21); a clamping bolt (26) is screwed through the upper end of the fixing sleeve (21); and the clamping bolt (26) is pressed against the displacement sensor (25).
6. The pan mouth detection device according to claim 1, characterized in that: The assembly comprises a fixed ring frame (14) fixedly mounted on the front end of the resistance ring (5); an angle groove (22) is provided at the end of the rod seat (8); the end of the fixed ring frame (14) is tightly attached to the inside of the angle groove (22); a shell (15) is fixedly mounted on the side of the rod seat (8); an assembly pin (17) is coaxially arranged inside the shell (15); both ends of the assembly pin (17) pass through both sides of the shell (15); the shell (15) and the assembly pin (17) are connected to each other. ) are slidably fitted, one end of the assembly pin (17) passes through between the rod seat (8) and the fixed ring frame (14), a fixing spring (16) is wound around the outside of the assembly pin (17), a pin cap (18) is coaxially inlaid on the outer surface of the assembly pin (17), the pin cap (18) is fitted to the inner surface of the shell (15), one end of the fixing spring (16) is fixed to the pin cap (18), and the other end of the fixing spring (16) is fixed to the inner side of the shell (15).
7. The pan mouth detection device according to claim 1, characterized in that: The pot fixing part comprises a detection table (2) fixedly mounted on the front upper end of the base (1); two positioning rings (3) are symmetrically extended from the upper end of the detection table (2); the center line of the positioning ring (3) is collinear with the center line of the shaft (6); a threaded column (34) is mounted on the lower end of the detection table (2); the threads at both ends of the threaded column (34) are symmetrically arranged; threaded sleeves (7) are screwed on both ends of the threaded column (34); the ends of the two threaded sleeves (7) are fixedly mounted with clamping rings (4); the two clamping rings (4) are symmetrically arranged.
8. The pan mouth detection device according to claim 7, characterized in that: The outer surface of the threaded column (34) is rotatably mounted with a protruding ear (36), the end of the protruding ear (36) is fixed to the detection platform (2), the side of the protruding ear (36) is extended with a guide frame (35), the lower end of the threaded sleeve (7) is extended with a concave slide (33), the concave slide (33) is slidably mounted on the outer surface of the guide frame (35), one end of the threaded column (34) is coaxially inlaid with a gear (32), the rear part of the gear (32) is engaged with a tooth plate (31), the rear end of the tooth plate (31) is fixedly mounted with a push plate frame (13), and the end of the push plate frame (13) is fixed to the lifting platform (10).