Marking, identifying and sorting machine for electronic lead seals
Patent Information
- Application Number
- CN202522048254.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-09-24
AI Technical Summary
[0003]目前行业内对电子铅封的加工普遍采用人工分选和单机作业的木事，最初的生产依赖于多个独立设备分别进行打标、识别和分选作业，工件在不同设备间需要人工搬运和上下料，生产效率较低，并且人工成本较高，人工在操作过程中极易错检、漏检，难以满足大规模生产对质量和效率的要求，也有一些自动化程度高的设备能同时进行识别和分选，但是往往结构比较复杂，制作成本和维护成本都比较高，对于电子铅封这类需要连续、大批量生产且对成本控制要求严格的部件而言，亟需一种成本较低并能够提高生产的自动化程度和作业精度的专用设备
本实用新型结构简单，使用方便，在很大程度上提高了电子铅封生产的自动化水平，降低了人力成本，提高了生产效率和作业精度。
Smart Images
Figure CN224846350U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electronic lead seal production technology, specifically relating to a marking, identification and sorting machine for electronic lead seals. Background Technology
[0002] Electronic lead seals, commonly known as meter caps, are key components in modern smart meters used to prevent unauthorized opening and ensure metering accuracy and security. They have a built-in RFID chip and a unique identification QR code laser-engraved on the outside. During the production process, each electronic lead seal needs to undergo multiple processes such as laser marking, QR code reading and verification, and chip information identification, and is then sorted and collected based on the inspection results.
[0003] Currently, the processing of electronic seals in the industry generally adopts manual sorting and single-machine operation. Initially, production relied on multiple independent devices to perform marking, identification, and sorting operations separately. Workpieces needed to be manually handled and loaded / unloaded between different devices, resulting in low production efficiency and high labor costs. Manual operation is prone to errors and omissions, making it difficult to meet the quality and efficiency requirements of large-scale production. Some highly automated devices can perform identification and sorting simultaneously, but they are often complex in structure and have high manufacturing and maintenance costs. For components like electronic seals that require continuous, large-scale production and have strict cost control requirements, there is an urgent need for a specialized device that is low-cost and can improve the automation level and operational accuracy of production. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a marking, identification and sorting machine for electronic lead seals. It has a simple structure and is easy to use, which greatly improves the automation level of electronic lead seal production, reduces labor costs, and improves production efficiency and operation accuracy.
[0005] The technical solution adopted by this utility model is as follows: a marking and sorting machine for electronic lead seals, including a worktable, a rotary processing component is set at the middle of the top of the worktable, the rotary processing component includes a support platform, the bottom of the support platform is detachably set on the upper surface of the worktable, a circular fixed plate is connected to the top of the support platform, the fixed plate has an annular protrusion on its edge and three openings on the edge, namely a feeding port, a qualified port and a rejection port; the qualified port and the rejection port are respectively provided with a good product unloading component and a defective product unloading component, and the feeding port is connected to the feeding component; a through hole is opened in the middle of the fixed plate, a support shaft is set in the middle of the support platform, the middle position of the support shaft is rotatably connected to the drive device through a bearing, a material tray is fixedly connected to the top of the drive device, the material tray is set in the fixed plate but not connected to the fixed plate, a hole is opened in the middle of the material tray, the support shaft passes through the hole, the edge of the material tray is an upward annular protrusion and lower than the annular protrusion of the edge of the fixed plate, and a groove is opened on the edge of the material tray; a gas tube is connected to the top of the support shaft. The cylinder platform is equipped with an ejection cylinder, a rejection cylinder, and a marking cylinder. The piston rods of the ejection and rejection cylinders are connected to L-shaped push rods to push the material outward from the slots. The ejection cylinder is connected to an electronic counter. The piston rod of the marking cylinder is connected to an L-shaped push rod, the bottom of which has an annular groove. The ejection cylinder corresponds to the pass port, the rejection cylinder to the rejection hole, and the marking cylinder to the laser marking equipment. The laser marking equipment is located on the worktable in front of the disc, with its output port corresponding to the slot on the material tray. A QR code detection device is located on one side of the laser marking equipment, with its detection port corresponding to the slot on the edge of the turntable. A chip detection device is also located on one side of the QR code detection device, with its detection port corresponding to the slot on the edge of the turntable. A control panel is located on one corner of the worktable surface, and an industrial computer is fixed next to the control panel via a rotatable crankshaft. The ejection, rejection, and marking cylinders are connected to the industrial computer.
[0006] The good product unloading assembly includes a guide rail 1 set at the bottom of the fixed plate. An L-shaped slider is set on the guide rail 1. One side of the slider is connected to the guide rail 1, and the other side is connected to two good product guide grooves, so that the guide rail 1 and the good product guide grooves are set perpendicularly. The two good product guide grooves are set in opposite directions, presenting a shape that bends from the qualified opening to both sides. The good product guide grooves are set downward from the qualified opening. The two good product guide grooves cannot be aligned with the qualified opening at the same time. A qualified material basket is placed at the end of each of the two good product guide grooves. The L-shaped slider is connected to a slider actuator, which is connected to an industrial computer. The slider actuator drives the L-shaped slider to move so that the two good product guide grooves are aligned with the qualified opening in turn.
[0007] The defective product unloading assembly includes a straight rejection guide groove that is set corresponding to the rejection port. The rejection guide groove is set at an angle downward from the rejection port, and a defective material basket is placed at the bottom of the rejection guide groove.
[0008] The drive unit includes a motor, which is fixedly connected to the support shaft via a bracket. The motor drive end is equipped with a drive wheel, which is connected to a driven wheel via a synchronous belt. The driven wheel is connected to the support shaft via a bearing. The bottom of the material tray is fixedly connected to the upper surface of the driven wheel. The motor is connected to an industrial computer.
[0009] The material tray has 1-40 slots on its edge, including square slots on the annular protrusion on the edge of the material tray and arched slots on the edge of the material tray.
[0010] The laser marking equipment includes a liftable support frame, which includes a support rod vertically mounted on the worktable. The support rod is equipped with a second guide rail. A horizontal support frame is fixedly connected to a slider on the second guide rail. A laser marking device is mounted at one end of the horizontal support frame. The laser marking device corresponds to a slot on the edge of the turntable. The laser marking device is connected to an industrial computer.
[0011] The QR code detection equipment includes a round rod that is vertically fixed on the worktable, a support rod that is horizontally connected to the round rod through an adjustable connecting frame, a QR code detector that is fixedly installed at the end of the support rod, the detection port of the QR code detector being configured to correspond to the slot on the edge of the turntable, and the QR code detector being connected to an industrial computer.
[0012] The chip testing equipment includes a round rod that is vertically fixed on the worktable. A support rod is horizontally connected to the round rod via an adjustable connecting frame. A chip detector is fixedly installed at the end of the support rod. The detection port of the chip detector is correspondingly set with the slot on the edge of the turntable. The chip detector is connected to an industrial computer.
[0013] The feeding assembly includes a linear feed guide rail, with a linear vibrator connected to the bottom of the linear feed guide rail. One end of the linear feed guide rail is connected to the feed port, and the other end is connected to the discharge port of the vibratory plate. The vibratory plate is mounted on a support frame, which is located next to the worktable. An L-shaped bracket is mounted on the support frame, with the bottom connected to the support frame and the top extending towards the worktable. The linear vibrator is fixedly mounted on the part of the L-shaped bracket that extends towards the worktable.
[0014] A feeding detection component is set on the cylinder platform. The feeding detection component includes a support plate and a feeding detection module. The feeding detection module is set at the feeding port, and its bottom corresponds to the slot on the edge of the turntable. A baffle is set at the top of the feeding port of the fixed plate. The baffle is U-shaped and its bottom is fixedly set on the protrusion on the edge of the fixed plate. The feeding detection module detects the material in the slot of the turntable through the U-shaped groove of the baffle.
[0015] The beneficial effects of this utility model are as follows: This invention has a simple structure and is easy to use. It greatly improves the automation level of electronic lead seal production, reduces labor costs, and improves production efficiency and operational accuracy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the product feeding assembly of this utility model; Figure 3 This is a schematic diagram of the cylinder platform structure of this utility model; Figure 4 This is a schematic diagram of the structure of the QR code detection device and the chip detection device of this utility model; Figure 5 This is a schematic diagram of the structure of the laser marking equipment of this utility model; Figure 6 This is a schematic diagram of the drive device structure of this utility model; Figure 7 This is a schematic diagram of the fixed disk structure of this utility model; Figure 8 This is a schematic diagram of the feeding component structure of this utility model; Figure 9 This is a schematic diagram of the material tray structure of this utility model.
[0017] Markings in the diagram: 1. Workbench; 2. Rotary processing assembly; 21. Support table; 22. Fixed plate; 221. Feed port; 222. Qualified port; 223. Rejection port; 23. Good product unloading assembly; 231. Guide rail one; 232. L-shaped slider; 233. Good product guide groove; 234. Qualified material basket; 24. Defective product unloading assembly; 241. Rejection guide groove; 242. Unqualified material basket; 25. Support shaft; 26. Drive device; 261. Motor; 262. Driven wheel; 27. Material tray; 271. Slot; 3. Feeding assembly; 31. Feed guide rail; 32. Linear vibrator; 33. Vibrating plate; 34. Support frame; 35. L-shaped slider. 4. Cylinder platform; 41. Push cylinder; 42. Rejection cylinder; 43. Marking cylinder; 431. Push rod two; 44. Feeding confirmation component; 441. Support plate; 442. Feeding detection module; 443. Baffle; 45. Push rod one; 5. Laser marking equipment; 51. Liftable bracket; 511. Support rod; 512. Horizontal bracket; 513. Guide rail two; 52. Laser marking device; 6. QR code detection equipment; 61. Round rod one; 62. Support rod one; 63. QR code detector; 7. Chip detection equipment; 71. Round rod two; 72. Support rod two; 73. Chip detector; 8. Control panel; 9. Crankshaft; 10. Industrial computer. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0019] As shown in the figure, an electronic lead seal marking and sorting machine includes a worktable 1. A rotary processing component 2 is located at the top center of the worktable 1. The rotary processing component 2 includes a support platform 21, the bottom of which is detachably mounted on the upper surface of the worktable 1. A circular fixed plate 22 is connected to the top of the support platform 21. The fixed plate 22 has an annular protrusion on its edge and three openings: a feeding port 221, a qualified port 222, and a rejection port 223. A good product unloading component 23 and a defective product unloading component 24 are respectively provided at the qualified port 222 and the rejection port 223. The good product unloading component 23 includes a guide rail 231 located at the bottom of the fixed plate 22. An L-shaped slider 232 is provided on 231. One side of the L-shaped slider 232 is connected to the guide rail 231, and the other side is connected to two good product guide grooves 233, so that the guide rail 231 and the good product guide grooves 233 are set perpendicularly. The two good product guide grooves 233 are set in opposite directions, presenting a shape that curves from the qualified opening 222 to both sides. The good product guide grooves 233 are set downward from the qualified opening 222. The two good product guide grooves 233 cannot correspond to the qualified opening 222 at the same time. A qualified material basket 234 is placed at the end of each of the two good product guide grooves 233. The L-shaped slider 232 is connected to the slider actuator, which is connected to the industrial computer 10. The slider actuator drives the L-shaped slider. 232 moves to allow the two good product guide grooves 233 to alternately align with the qualified product port 222; the defective product unloading assembly 24 includes a linear rejection guide groove 241 corresponding to the rejection port 223, the rejection guide groove 241 is inclined downward from the rejection port 223, and a defective material basket 242 is placed at the bottom of the rejection guide groove 241; the loading port 221 is connected to the loading assembly 3, the loading assembly 3 includes a linear feeding guide rail 31, the bottom of the feeding guide rail 31 is connected to a linear vibrator 32, one end of the feeding guide rail 31 is connected to the feeding port, and the other end is connected to the discharge port of the vibrating plate 33, the vibrating plate 33 is mounted on a support frame 34, the support frame 34 is mounted next to the workbench 1, and the support frame 3... An L-shaped bracket 35 is provided on the 4, with a support frame 34 connected to the bottom and extending towards the worktable 1 at the top. A linear vibrator 32 is fixedly installed on the part of the L-shaped bracket 35 extending towards the worktable 1. A through hole is opened in the middle of the fixed plate 22. A support shaft 25 is provided in the middle of the support platform 21. The middle position of the support shaft 25 is rotatably connected to the drive device 26 through a bearing. The drive device 26 includes a motor 261. The motor 261 is fixedly connected to the support shaft 25 through a bracket. The drive end of the motor 261 is provided with a drive wheel. The drive wheel is connected to the driven wheel 262 through a synchronous belt. The driven wheel 262 is connected to the support shaft 25 through a bearing. The bottom of the material tray 27 is fixedly connected to the upper surface of the driven wheel 262.The material tray 27 is disposed within the fixed plate 22 but is not connected to the fixed plate 22. A hole is formed in the center of the material tray 27, through which the support shaft 25 passes. The edge of the material tray 27 has an upward-facing annular protrusion that is lower than the annular protrusion on the edge of the fixed plate 22. Twenty slots 28 are formed on the edge of the material tray 27, including square slots on the annular protrusion and arched slots on the edge of the material tray 27. The top of the support shaft 25 is connected to a cylinder platform 4. The upper surface of the cylinder platform 4 is equipped with an ejector cylinder 41, a rejection cylinder 42, a marking cylinder 43, and a material loading confirmation component 44. A dustproof plate is installed on the cylinder platform 4. The feeding confirmation component 44 is located on the upper surface of the cylinder platform 4 and below the dustproof plate. The ejection cylinder 41, rejection cylinder 42, and marking cylinder 43 are connected to the industrial computer 10. The feeding confirmation component 44 includes a support plate 441 and a feeding detection module 442. The feeding detection module 442 is located at the feeding port 221, and its bottom corresponds to the slot 28 on the edge of the turntable. A baffle 443 is provided on the top of the feeding port 221 of the fixed plate 22. The baffle 443 is U-shaped and its bottom is fixedly set on the protrusion on the edge of the fixed plate 22. The feeding detection module 442 confirms the material in the turntable slot 28 through the U-shaped groove of the baffle 443. The piston rods of the ejection cylinder 41 and the rejection cylinder 42 are connected to an L-shaped push rod 45 to push the material out of the slot 28. The marking cylinder 43 is pushed outwards. An L-shaped push rod 431 is connected to the end of the piston rod of the marking cylinder 43. An annular groove is provided at the bottom of the push rod 431. The ejection cylinder 41 corresponds to the qualified port 222, and the rejection cylinder 42 corresponds to the rejection hole. The marking cylinder 43 corresponds to the laser marking device 5. The laser marking device 5 is set on the worktable 1 in front of the disc. The laser marking device 5 includes a liftable support 51, which includes a support rod 511 vertically mounted on the worktable 1. A guide rail 513 is provided on the support rod 511. A horizontal support 512 is fixedly connected to a slider on the guide rail 513. A laser marking device 52 is provided at one end of the horizontal support 512, and the laser marking device 52 corresponds to the slot 28 on the edge of the turntable. A QR code detection device 6 is provided on one side of the workbench 1. The QR code detection device 6 includes a round rod 61 that is vertically fixed on the workbench 1. A support rod 62 is horizontally connected to the round rod 61 through an adjustable connecting frame. A QR code detector 63 is fixedly installed at the end of the support rod 62. The detection port of the QR code detector 63 is correspondingly set with the slot 28 on the edge of the turntable. A chip detection device 7 is provided on one side of the QR code detection device 6. The chip detection device 7 includes a round rod 71 that is vertically fixed on the workbench 1. A support rod 72 is horizontally connected to the round rod 71 through an adjustable connecting frame. A chip detector 73 is fixedly installed at the end of the support rod 72. The detection port of the chip detector 73 is correspondingly set with the slot 28 on the edge of the turntable.A control panel 8 is located on one corner of the upper surface of the workbench 1. Next to the control panel 8, an industrial computer 10 is fixedly mounted via a rotatable crankshaft 9. A motor 261, a laser marking device 52, a QR code detector 63, and a chip detector 73 are connected to the industrial computer 10.
[0020] This type of electronic seal marking and sorting machine, when in use, after setting the program on the industrial computer 10, places the electronic seal in the vibratory feeder 33. The electronic seal enters the slot 271 through the feeding guide rail 31. The baffle 443 restricts the height of the electronic seal, keeping it at the same height in the slot 271. The feeding detection module 442 confirms that the electronic seal feeding is complete, and the drive device 26 drives the material tray 27 to rotate, so that the next slot 271 corresponds to the feeding port 221, realizing continuous feeding. When the electronic seal rotates to the vibratory feeder 33, the machine continues to feed the seal. When the laser marking device 52 is below, the push rod 431 of the marking cylinder extends, pressing the electronic seal firmly to keep it fixed. The laser marking device 52 marks a QR code on the upper surface of the electronic seal. After the laser marking is completed, the push rod 431 returns to its original position. The material tray 27 drives the electronic seal to rotate below the QR code detector 63 to confirm that the laser-marked QR code is correct. The material tray 27 then drives the electronic seal to rotate to the chip detection device 7. After the chip detector 73 detects that the chip inside the electronic seal is correct, the material tray 27 drives the electronic seal to rotate to the qualified port 222, and the ejector cylinder 41 is pushed out. Push rod 45 pushes the qualified electronic seal into the good product guide groove 233, and then it falls into the qualified material basket 234. When the QR code detector 63 or the chip detector 73 detects that the electronic seal is unqualified, the material tray 27 drives the electronic seal to rotate to the rejection port 223. Push rod 45 of the rejection cylinder 42 pushes the electronic seal into the rejection guide groove 241, and finally the electronic seal falls into the unqualified material basket 242. Each time the ejection cylinder 41 ejects an electronic seal, the electronic counter connected to the ejection cylinder 41 counts. When the number of ejected electronic seals reaches a certain level, the counter counts the number of seals ejected. After the quantity is determined, the slider actuator drives the L-shaped slider 232 to move to the other end of the guide rail 231, so that another good product guide groove 233 corresponds to the qualified opening 222, allowing the electronic seal to enter another qualified material basket 234 from the other good product guide groove 233, realizing continuous operation. The staff put the finished products into the finished product area from the qualified material basket 234 that is already full of finished products. This utility model has a simple structure and is easy to use. It greatly improves the automation level of electronic seal production, reduces labor costs, and improves production efficiency and operation accuracy.
Claims
1. A marking and sorting machine for electronic lead seals, comprising a worktable, a rotary processing assembly disposed at the center of the top of the worktable, the rotary processing assembly including a support platform, the bottom of the support platform being detachably disposed on the upper surface of the worktable, and a circular fixed plate connected to the top of the support platform, characterized in that: The fixed plate has an annular protrusion on its edge and three openings: a feeding port, a qualified port, and a rejection port. The qualified and rejection ports are respectively equipped with good product unloading components and defective product unloading components. The feeding port is connected to the feeding components. A through hole is located in the center of the fixed plate, and a support shaft is located in the center of the support platform. The support shaft is rotatably connected to the drive device via a bearing in its center. A material tray is fixedly connected to the top of the drive device. The material tray is located inside the fixed plate but not connected to it. A hole is located in the center of the material tray, through which the support shaft passes. The edge of the material tray has an upward-facing annular protrusion that is lower than the annular protrusion on the edge of the fixed plate. A groove is located on the edge of the material tray. A cylinder platform is connected to the top of the support shaft. The cylinder platform is equipped with an ejector cylinder, a rejection cylinder, and a marking cylinder. The piston rods of the ejector cylinder and the rejection cylinder are connected to L-shaped push rods to push the material... The marking cylinder is connected to an electronic counter and pushes outward from the slot. An L-shaped push rod is connected to the end of the piston rod of the marking cylinder, with an annular groove at the bottom. The pushing cylinder corresponds to the pass port, the rejection cylinder to the rejection hole, and the marking cylinder to the laser marking equipment. The laser marking equipment is set on the worktable in front of the disc, with its output port corresponding to the slot on the material tray. A QR code detection device is located on one side of the laser marking equipment, with its detection port corresponding to the slot on the edge of the turntable. A chip detection device is also located on one side of the QR code detection device, with its detection port corresponding to the slot on the edge of the turntable. A control panel is located on one corner of the worktable surface, and an industrial computer is fixed next to the control panel via a rotatable crankshaft. The pushing cylinder, rejection cylinder, and marking cylinder are connected to the industrial computer.
2. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The good product unloading assembly includes a guide rail 1 set at the bottom of the fixed plate. An L-shaped slider is set on the guide rail 1. One side of the slider is connected to the guide rail 1, and the other side is connected to two good product guide grooves, so that the guide rail 1 and the good product guide grooves are set perpendicularly. The two good product guide grooves are set in opposite directions, presenting a shape that bends from the qualified opening to both sides. The good product guide grooves are set downward from the qualified opening. The two good product guide grooves cannot be aligned with the qualified opening at the same time. A qualified material basket is placed at the end of each of the two good product guide grooves. The L-shaped slider is connected to a slider actuator, which is connected to an industrial computer. The slider actuator drives the L-shaped slider to move so that the two good product guide grooves are aligned with the qualified opening in turn.
3. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The defective product unloading assembly includes a straight rejection guide groove that is set corresponding to the rejection port. The rejection guide groove is set at an angle downward from the rejection port, and a defective material basket is placed at the bottom of the rejection guide groove.
4. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The drive unit includes a motor, which is fixedly connected to the support shaft via a bracket. The motor drive end is equipped with a drive wheel, which is connected to a driven wheel via a synchronous belt. The driven wheel is connected to the support shaft via a bearing. The bottom of the material tray is fixedly connected to the upper surface of the driven wheel. The motor is connected to an industrial computer.
5. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The material tray has 1-40 slots on its edge, including square slots on the annular protrusion on the edge of the material tray and arched slots on the edge of the material tray.
6. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The laser marking equipment includes a liftable support frame, which includes a support rod vertically mounted on the worktable. The support rod is equipped with a second guide rail. A horizontal support frame is fixedly connected to a slider on the second guide rail. A laser marking device is mounted at one end of the horizontal support frame. The laser marking device corresponds to a slot on the edge of the turntable. The laser marking device is connected to an industrial computer.
7. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The QR code detection equipment includes a round rod that is vertically fixed on the worktable, a support rod that is horizontally connected to the round rod through an adjustable connecting frame, a QR code detector that is fixedly installed at the end of the support rod, the detection port of the QR code detector being configured to correspond to the slot on the edge of the turntable, and the QR code detector being connected to an industrial computer.
8. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The chip testing equipment includes a round rod that is vertically fixed on the worktable. A support rod is horizontally connected to the round rod via an adjustable connecting frame. A chip detector is fixedly installed at the end of the support rod. The detection port of the chip detector is correspondingly set with the slot on the edge of the turntable. The chip detector is connected to an industrial computer.
9. The marking, identification, and sorting machine for electronic lead seals according to claim 1, characterized in that: The feeding assembly includes a linear feed guide rail, with a linear vibrator connected to the bottom of the linear feed guide rail. One end of the linear feed guide rail is connected to the feed port, and the other end is connected to the discharge port of the vibratory plate. The vibratory plate is mounted on a support frame, which is located next to the worktable. An L-shaped bracket is mounted on the support frame, with the bottom connected to the support frame and the top extending towards the worktable. The linear vibrator is fixedly mounted on the part of the L-shaped bracket that extends towards the worktable.
10. A marking and sorting machine for electronic lead seals according to claim 1, characterized in that: A feeding detection component is set on the cylinder platform. The feeding detection component includes a support plate and a feeding detection module. The feeding detection module is set at the feeding port, and its bottom corresponds to the slot on the edge of the turntable. A baffle is set at the top of the feeding port of the fixed plate. The baffle is U-shaped and its bottom is fixedly set on the protrusion on the edge of the fixed plate. The feeding detection module detects the material in the slot of the turntable through the U-shaped groove of the baffle.