Automatic feeding device and method for processing muffler

Abstract

The present application relates to a kind of automatic feeding device and method of muffler processing, belong to workpiece automation feeding technical field, its device includes discharge station, feeding plate mechanism, feeding conveyor, push assembly and waste recovery component;Its method includes obtaining lifting pressure value;When lifting pressure value exceeds preset effective muffler workpiece pressure threshold value, preset lifting feeding scheme is obtained;According to lifting feeding scheme, feeding plate mechanism is controlled to execute feeding operation;Feeding conveyor image information is obtained, and based on edge recognition algorithm, feeding conveyor image information is parsed, to obtain muffler workpiece contour;When there is muffler workpiece contour, feeding conveyor is controlled to execute transmission operation.The present application has the effect of intercepting muffler workpiece of unqualified outer diameter size in the process of feeding, prevent defective blank into cutting machining process.

Description

Technical Field

[0001] This invention relates to the field of automated workpiece feeding technology, and in particular to an automated feeding device and method for muffler processing. Background Technology

[0002] Tubular mufflers are tubular components used in exhaust systems to reduce noise. They require high dimensional accuracy, and the workpieces need to be automatically sorted and transported before the outer diameters at both ends are machined.

[0003] Currently, the industry generally uses a structure of vibrating hoppers combined with linear feeding tracks to complete the feeding of tubular workpieces. The vibration drives the workpieces to be arranged in sequence, continuously supplying blanks to the machine tool processing station.

[0004] Regarding the aforementioned technologies, traditional tubular muffler automatic feeding devices are only responsible for conveying workpieces. Unqualified workpieces with larger outer diameters will enter the subsequent cutting station along with qualified workpieces, which not only reduces the finished product qualification rate but also causes unnecessary waste of materials and processing time. Summary of the Invention

[0005] In order to intercept muffler workpieces with unqualified outer diameter dimensions before the feeding process, prevent defective blanks from entering the cutting process, and reduce production losses, this invention provides an automatic feeding device and method for muffler processing.

[0006] In a first aspect, the present invention provides an automatic feeding device for muffler processing, which adopts the following technical solution: An automatic feeding device for muffler processing includes a discharge station, a feeding plate mechanism for lifting and conveying muffler workpieces, and a feeding conveyor belt for conveying the muffler workpieces lifted by the feeding plate mechanism to the discharge station. The device is characterized by further including a pushing component for pushing the muffler workpieces stuck between the feeding plate mechanism and the feeding conveyor belt, and a waste recycling component for recycling the muffler workpieces pushed by the pushing component. The feeding plate mechanism includes a feeding ramp located at the top and inclined downward toward the feeding conveyor belt; the feeding conveyor belt has a limiting sensing baffle on the side away from the feeding ramp; a detection gap channel is formed between the edge of the feeding ramp and the limiting sensing baffle for screening the muffler workpiece and sending it to the feeding conveyor belt, and the width of the detection gap channel is the same as the outer diameter of the muffler workpiece. When the muffler workpiece passes through the detection gap channel, the feeding conveyor belt transports the muffler workpiece to the discharge station; when the muffler workpiece is stuck in the detection gap channel, the pushing component pushes the muffler workpiece along the limit sensing baffle to the waste recycling component.

[0007] By adopting the above technical solution, the outer diameter of the muffler workpiece can be directly screened using the detection gap channel. Workpieces with qualified outer diameters that match the width of the detection gap channel can smoothly pass through the channel and fall onto the feeding conveyor belt, which then transports them to the discharge station for subsequent processing. Workpieces with excessive outer diameters cannot pass through the detection gap channel and become stuck between the feeding ramp and the limit sensor baffle. At this point, the push assembly is activated, pushing the stuck workpiece along the limit sensor baffle to the waste recycling assembly for recovery. This process directly intercepts and screens unqualified workpieces during the feeding process, preventing unqualified blanks from entering subsequent cutting and processing stages, effectively reducing production losses and improving the finished product qualification rate.

[0008] Optionally, the waste recycling assembly includes a downward sliding recycling channel with an inclined surface and a waste recycling container disposed at the end of the downward sliding recycling channel for accommodating defective muffler workpieces; a waste recycling trough is provided between the end of the downward sliding recycling channel and the waste recycling container, and a waste rejection mechanism is provided in the waste recycling trough for lifting and classifying the muffler workpieces; the width of the waste recycling trough is the same as the outer diameter of the muffler workpiece.

[0009] By adopting the above technical solution, after the unqualified workpiece is pushed to the sliding recovery channel by the pushing component, it will slide down the inclined sliding recovery channel by its own gravity and enter the waste recycling tank. If a falsely detected workpiece with a normal width is accidentally mixed in, it will fall directly from the waste recycling tank. The workpiece to be recycled that exceeds the outer diameter standard is lifted by the waste rejection mechanism and finally put into the waste recycling container for collection. This realizes the classification and recycling of unqualified workpieces of different sizes, which facilitates the subsequent secondary processing and reuse of the workpieces and improves the screening practicality of the device.

[0010] Optionally, the feeding plate mechanism further includes a receiving station for accommodating the muffler workpiece and a plurality of feeding plates for transferring the muffler workpiece upward from the receiving station to the feeding ramp; the feeding plates are slidably installed in the receiving station and adjacent feeding plates are slidably connected; each feeding plate has a material-bearing ramp at its top, and the material-bearing ramp and the adjacent feeding plate form a receiving groove for accommodating the muffler workpiece during the lifting process; When the feed plate is raised, the inclined surfaces of the adjacent feed plates come into contact to transfer the muffler workpiece.

[0011] By adopting the above technical solution, the muffler workpieces stacked disorderly at the receiving station are lifted and transferred one by one. The inclined feeding surface can support and limit the workpieces, preventing them from slipping during the lifting process. When adjacent feeding plates slide and lift in sequence, the workpieces will gradually move upward along the connected inclined feeding surface and finally be stably conveyed to the top feeding surface. This realizes the automated sorting of workpieces from disordered stacking to orderly single-piece conveying, improves the stability of feeding, and adapts to the continuous feeding needs of batch muffler blanks.

[0012] Optionally, the waste rejection mechanism includes a telescopic component installed in the waste recycling tank and capable of vertical extension and retraction, and a rotating screening block rotatably installed on the telescopic component and moving up and down with the telescopic component; The rotating screening block has a waste pushing slope on the side near the receiving station and a waste recycling slope on the side away from the receiving station. The waste pushing slope and the waste recycling slope have opposite inclination directions. The waste pushing slope slopes downwards towards the waste recycling container. When the muffler workpiece slides down the sliding recovery channel and gets stuck in the waste recovery tank, the rotating screening block rises and guides the muffler workpiece to the waste recovery container through the waste pushing inclined plane; when the muffler workpiece falls from the waste recovery tank, the waste recovery inclined plane guides the muffler workpiece back to the feeding plate mechanism.

[0013] By adopting the above technical solution, when a qualified workpiece that is mistakenly detected falls from the waste recycling trough, it will directly land on the inclined waste recycling ramp. It will then be guided along the ramp to the return feeding plate mechanism to re-enter the screening process, preventing qualified workpieces from being incorrectly recycled and reducing waste. Conversely, when a non-qualified workpiece with an excessive outer diameter gets stuck, the telescopic component drives the rotating screening block to rise, pushing the waste away from the ramp and guiding the workpiece towards the waste recycling container. Ultimately, the non-qualified workpiece slides into the waste recycling container for recycling. The entire screening and rejection process is seamless and requires no additional manual intervention, ensuring the automated operation efficiency of the device.

[0014] Optionally, the limiting sensing baffle is arrayed with multiple pressure sensors along its length to collect contact point information of the silencer workpiece above the detection gap channel.

[0015] By adopting the above technical solution, when an oversized workpiece gets stuck in the detection gap channel, it will contact multiple pressure sensors on the limit sensing baffle. Workpieces of different sizes will trigger different positions and different numbers of pressure sensors. The device can confirm the stuck state of the workpiece and identify the approximate outer diameter of the current workpiece through the contact point information. It can promptly trigger the push component to start the rejection action, avoid the stuck workpiece from affecting the normal feeding of subsequent qualified workpieces, and maintain the continuous operation of the device.

[0016] Secondly, the present invention provides an automatic feeding method for muffler processing, which adopts the following technical solution: An automatic feeding method for muffler processing, applied to an automatic feeding device for muffler processing as described above, includes: Obtain the lifting pressure value corresponding to the inclined surface of the material support; When the lifting pressure value exceeds the preset effective silencer workpiece pressure threshold, the preset lifting and feeding scheme is obtained. The feeding plate mechanism is controlled to perform the feeding operation according to the lifting and feeding scheme; The image information of the feeding conveyor belt is acquired and parsed based on the edge recognition algorithm to obtain the outline of the muffler workpiece. When the outline of the muffler workpiece is present, control the feeding conveyor belt to perform the transfer operation.

[0017] By adopting the above technical solution, the lifting pressure value can be collected to determine whether the feeding plate is stably supporting the effective workpiece on the inclined surface, avoiding the feeding plate from making useless lifting movements. Then, image recognition is used to confirm that the workpiece has successfully fallen onto the conveyor belt, ensuring the normal start of the transmission process and improving the accuracy and operating efficiency of automatic feeding.

[0018] Optionally, the methods for performing the feeding operation according to the lifting feeding scheme include: The pressure value of the feeding plate is acquired in real time during the feeding operation. When the feed plate pressure value is 0, determine the invalid feed plate number and accumulate the number of invalid feed plate numbers; When the number of invalid feeder plates is equal to the preset default number of feeder plates, the feeder plate mechanism is controlled to perform a fall-back operation according to the preset default height parameters. When the number of invalid feeder plates is not equal to the number of default feeder plates, continue to perform the feeding operation according to the lifting feeding scheme.

[0019] By employing the above technical solution, the number of invalid feeder plates with no pressure value can be accumulated to determine whether the workpiece slipped off due to dimensional inconsistencies during the lifting and pushing process. When no pressure is detected on any of the feeder plates, the feeder plate mechanism is directly controlled to fall back in preparation for the next feeding and pushing, avoiding wasted energy during empty lifting operations.

[0020] Optional, also includes: Obtain the contact pressure value of the limit sensing baffle corresponding to the array pressure sensor; When there is a limit sensor baffle abutting pressure value, obtain the sensor number corresponding to the limit sensor baffle abutting pressure value; Determine sensor location based on sensor number; The number of consecutive sensors is determined based on the sensor positions, and the length of the currently stuck workpiece is determined based on the number of consecutive sensors. If the current stuck workpiece length is equal to the preset silencer workpiece length threshold, output an abnormal workpiece size signal; In response to an abnormal workpiece size signal, the control push assembly is used to perform a scrap pushing operation; If the current length of the stuck workpiece is not equal to the silencer workpiece length threshold, the current contact time is accumulated based on the sensor number; If the current arrival time exceeds the preset abnormal arrival time threshold, a manual alarm signal will be output. If the current contact time does not exceed the abnormal contact time threshold, the position of the end workpiece is determined based on the sensor position, and the drive component is controlled to perform a muffler placement position correction operation according to the position of the end workpiece.

[0021] By employing the above technical solution, the length of the currently stuck workpiece is determined by the number of continuous sensors, and it is determined whether the workpiece is abutting against the limit sensor baffle due to out-of-tolerance outer diameter. If the current stuck workpiece length is equal to the silencer workpiece length threshold, it indicates that a single workpiece is stuck above the detection gap channel, which is likely due to out-of-tolerance outer diameter. In this case, the workpiece is directly pushed out as waste. If the current stuck workpiece length is not equal to the silencer workpiece length threshold, it is likely that multiple workpieces are misaligned, causing them to abut against each other and resulting in sticking. In this case, the sticking fault is handled by the pushing component. When the pushing component cannot effectively handle the sticking fault, a manual alarm is output to remind the operator to handle the sticking fault in time to avoid blocking the feeding channel and affecting the feeding process.

[0022] Optional, also includes: Collect image information of the waste recycling tank and obtain the outline of the currently occupied workpiece through an edge recognition algorithm; Assign a current workpiece number based on the current workpiece outline and determine the current workpiece outline position; Based on the current position of the workpiece outline, the position change corresponding to the current workpiece number is obtained in real time. When the position change is 0, the occupation time corresponding to the current occupied workpiece number is accumulated; When the occupation time exceeds the abnormal contact time threshold, the waste removal mechanism is controlled to perform waste removal operation according to the preset waste removal plan.

[0023] By adopting the above technical solution, the status of the workpiece at the waste recycling tank is monitored by image recognition. If the workpiece remains for a long time without sliding down normally, the rejection operation can be automatically triggered to avoid the workpiece getting stuck in the waste recycling tank and blocking the waste recycling tank and the sliding recycling channel. This ensures the automated operation of the waste recycling process without the need for frequent manual inspections and cleaning.

[0024] Optionally, the specific methods for controlling the waste removal mechanism to perform waste removal operations according to the waste removal plan also include: The removal lifting pressure is acquired in real time during the waste removal operation; When the lifting pressure does not exceed the preset reference silencer workpiece pressure threshold, the waste removal operation is carried out according to the waste removal plan. When the ejection pressure exceeds the reference silencer workpiece pressure threshold, the scrap removal operation is stopped, and the preset scrap back push scheme is obtained. The scrap back push operation is then executed according to the scrap back push scheme.

[0025] By adopting the above technical solution, analysis of the lifting pressure revealed that the number of muffler workpieces in contact with the rotating screening block was greater than one, indicating a situation where qualified workpieces were mixed and stuck together. Through the waste push-back operation, the muffler workpiece initially closest to the waste recycling trough will fall above the subsequent workpieces waiting to fall into the trough. When the moving block falls back, the muffler workpieces originally waiting to fall into the waste recycling trough will directly reach the trough. This not only prevents potentially abnormally sized muffler workpieces from being misjudged as unqualified due to mutual contact between workpieces, but also improves recycling efficiency and reduces economic losses.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: This device relies on the inclined surface of the feeding plate to complete the first round of initial size screening. Then, in conjunction with the detection gap channel and array pressure sensor, it distinguishes between two types of jamming faults: workpiece outer diameter exceeding tolerance and misplacement. In the feeding process, it intercepts unqualified workpieces layer by layer, preventing defective blanks from entering the cutting station and effectively reducing the loss of raw materials and time. By identifying the cause of jamming through pressure point distribution, the silencer workpiece with unqualified outer diameter is automatically pushed to the waste area. The manual alarm is only triggered when the workpiece is tilted and jammed, eliminating the need to stop the machine and clean blindly. At the same time, the image monitoring of the waste recycling tank jams the workpiece and automatically removes or pushes it back to release the jam, improving recycling efficiency. The waste recycling tank and the rotating screening block with bidirectional switchable inclined plane form a secondary sorting channel. Workpieces that are stuck together can be rearranged by pushing back, and the qualified silencer workpieces that were misscreened can be guided back to the feeding starting point for refeeding. This avoids qualified silencer workpieces being rejected as waste due to mutual jamming, and further improves the material utilization rate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an automatic feeding device for muffler processing according to an embodiment of this application; Figure 2 This is an exploded view of the feed plate in the embodiments of this application; Figure 3This is a schematic diagram of the feeding control process of the feeding plate mechanism in the embodiments of this application. Figure 1 ; Figure 4 This is a schematic diagram of the feeding control process of the feeding plate mechanism in the embodiments of this application. Figure 2 ; Figure 5 This is an exploded schematic diagram of the waste removal mechanism in the embodiments of this application; Figure 6 This is a schematic diagram showing the location of the waste recycling tank in an embodiment of this application; Figure 7 This is a schematic diagram of a waste recycling operation scenario in an embodiment of this application; Figure 8 This is a schematic diagram of a waste removal operation in an embodiment of this application; Figure 9 This is a flowchart of an automatic feeding method for muffler processing according to an embodiment of this application.

[0028] The parts referred to by the numbers in the attached diagrams are as follows: 1. Feeding plate mechanism; 11. Feeding inclined plane; 12. Receiving station; 13. Feeding plate; 131. Feeding sliding block; 132. Feeding sliding groove; 133. Supporting inclined plane; 14. Feeding plate No. 1; 15. Feeding plate No. 2; 16. Feeding plate No. 3; 17. Receiving groove; 2. Feeding conveyor belt; 3. Pushing assembly; 31. Pushing base; 32. Pushing cylinder; 4. Waste recycling assembly; 41. Sliding recycling channel; 42. Waste recycling container; 421 43. Waste guide ramp; 44. Waste recycling trough; 45. Waste rejection mechanism; 46. Telescopic component; 47. Lifting bracket; 48. Moving block; 49. Rotating shaft; 40. Rotating screening block; 41. Waste recycling ramp; 42. Waste pushing ramp; 5. Limit sensing baffle; 6. Detection gap channel; 7. First image acquisition component; 71. First acquisition bracket; 72. Camera No. 1; 8. Second image acquisition component; 81. Second acquisition bracket; 82. Camera No. 2; 9. Discharge station. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This invention discloses an automatic feeding device for muffler processing. (Refer to...) Figure 1 An automatic feeding device for muffler processing includes a discharge station 9, a feeding plate mechanism 1, a feeding conveyor belt 2, a pushing component 3, a waste recycling component 4, a limit sensing baffle 5, a first image acquisition component 7, and a second image acquisition component 8.

[0031] Reference Figure 1The feeding plate mechanism 1 includes a receiving station 12 and a number of feeding plates 13. (See reference...) Figure 2 The feeding sliding block 131 is fixedly connected to one side of the feeding plate 13. One side of the feeding plate 13 has a feeding sliding groove 132, and the other side of the feeding plate 13 is equipped with a feeding sliding block 131 that can be embedded into the feeding sliding groove 132. The feeding plate 13 is embedded into the feeding sliding groove 132 of the adjacent feeding plate 13 via the feeding sliding block 131, and slides along the length of the feeding sliding groove 132. Each feeding plate 13 has a supporting inclined surface 133 at its top, forming a receiving groove 17 between the supporting inclined surface 133 and the surface of the adjacent feeding plate 13 for accommodating the muffler workpiece during lifting. An initial sliding groove is provided on one side of the receiving station 12. The feeding plates 13 are assigned corresponding feeding plate numbers according to their connection sequence, with feeding plate number 14 being the feeding plate 13 closest to the receiving station 12. The feeding slide block 131 of the first feeding plate 14 is embedded in the initial sliding groove and slides along the length of the initial sliding groove. The size of the initial sliding groove is the same as the size of the feeding slide groove 132. An air bladder with pressure detection is installed on the receiving slope 133 to detect whether the muffler workpiece has fallen onto the receiving slope 133. The receiving slope 133 causes the muffler workpiece located on the receiving slope 133 to fall onto the receiving slope 133 of the feeding plate 13 of the subsequent feeding plate number.

[0032] The specific control process involves pre-setting the initial lifting height of the first feeding plate 14, referring to... Figure 3 The initial lifting height of the first feeding plate 14 is consistent with the plane height of the receiving station 12. The initial lifting height of the second feeding plate 15 is slightly higher than that of the first feeding plate 14. This height difference between the second feeding plate 15 and the first feeding plate 14 ensures that the silencer workpiece can only contact the inclined surface 133 of the first feeding plate 14. (Refer to...) Figure 3 The initial lifting height of the third feeding plate 16 is slightly higher than that of the second feeding plate 15. Similarly, all feeding plates 13 are preset to start lifting according to the height difference. Finally, all feeding plates 13 form a stepped distribution of material-bearing inclined surfaces 133, so that the silencer workpiece can be transferred upward step by step.

[0033] When the muffler workpiece in station 12 falls onto the inclined surface 133 of the first feeding plate 14, the workpiece presses against the air bladder on the inclined surface 133. The air bladder generates a corresponding pressure signal. After receiving the pressure signal, the control system controls the first feeding plate 14 to rise along the initial sliding groove to a height level with the second feeding plate 15. (Refer to...) Figure 4At this time, the second feeding plate 15 is controlled to descend to a preset limit height so that the muffler workpiece on the first feeding plate 14 can roll into the receiving slope 133 of the second feeding plate 15. At this time, the second feeding plate 15 and the third feeding plate 16 form a receiving groove 17. After the pressure detection of the second feeding plate 15 is triggered, the first feeding plate 14 falls back to the initial lifting height, waiting for the muffler workpiece in the receiving station 12 to fall onto the receiving slope 133 of the first feeding plate 14. Then the second feeding plate 15 repeats the action of the first feeding plate 14, and rises to the same height as the third feeding plate 16. The third feeding plate 16 descends to the corresponding limit height to form a receiving groove 17, receives the muffler workpiece sent out by the second feeding plate 15 and triggers its own pressure detection. In this way, the muffler workpiece is transferred upwards step by step along the feeding plate group. The limiting height here refers to a fixed descent distance preset based on the outer diameter of the muffler workpiece itself, ensuring that the receiving groove 17 formed by the adjacent feeding plate 13 can accommodate the muffler workpiece with an outer diameter deviation that is not too large.

[0034] The width of the inclined surface 133 is adapted to the size of the qualified muffler workpiece to prevent unqualified workpieces with excessive size deviation from entering the feeding process. If the size deviation of the muffler workpiece is not large, the material is still fed by the receiving groove 17 formed by the inclined surface 133 and the adjacent feeding plate 13. Subsequently, the muffler workpieces with unqualified outer diameter will be further checked by the detection gap channel 6 and the waste recycling groove 43.

[0035] Reference Figure 1 The feeding plate mechanism 1 also includes a feeding ramp 11. The side of the feeding ramp 11 away from the feeding plate 13 forms a detection gap channel 6 with the limit sensing baffle 5. The feeding conveyor belt 2 is installed in the detection gap channel 6. The width of the detection gap channel 6 is the same as the outer diameter of the muffler workpiece, which is used to prevent muffler workpieces with unqualified outer diameter dimensions from falling into the detection gap channel 6.

[0036] Reference Figure 1 The pushing assembly 3 includes a pushing base 31 and a pushing cylinder 32. One side of the pushing base 31 is fixedly connected to one side of the receiving station 12. The pushing cylinder 32 is fixedly connected to one end of the pushing base 31, and the pushing end of the pushing cylinder 32 pushes along the length direction of the limit sensing baffle 5 to push the defective muffler workpiece stuck on the detection gap channel 6.

[0037] Reference Figure 1 The receiving station 12, located away from the push base 31, is fixedly connected to the discharge station 9 and the waste recycling assembly 4. A limit sensor baffle 5 separates the discharge station 9 and the waste recycling assembly 4. A detection gap channel 6 connects to the discharge station 9. A feeding air blowing mechanism is fixedly installed at one end of the discharge station 9.

[0038] Reference Figure 1The first image acquisition component 7 includes a first acquisition bracket 71 and a first camera 72. One end of the first acquisition bracket 71 is fixedly connected to the end of the limit sensing baffle 5 away from the detection gap channel 6, and the other end of the first acquisition bracket 71 is fixedly connected to the first camera 72. The first camera 72 is used to capture image information of the feeding conveyor belt to determine that a qualified muffler workpiece has fallen into the feeding conveyor belt 2, control the feeding conveyor belt 2 to transport the muffler workpiece to the discharge station 9, and drive the muffler workpiece to roll off the discharge station 9 by blowing air through the feeding air blowing mechanism to complete the loading.

[0039] Reference Figure 1 The waste recycling assembly 4 includes a sliding recycling channel 41, a waste recycling container 42, and a waste rejection mechanism 44. The sliding recycling channel 41 has an inclined surface for guiding the muffler workpiece to roll down the inclined surface. One end of the waste recycling container 42 is fixedly connected to one end of the receiving station 12. The opening of the waste recycling container 42 is provided with a waste guide ramp 421. (Refer to...) Figure 6 A waste recycling trough 43 is located between the end of the downward-sloping recycling channel 41 and the waste guide ramp 421 of the waste recycling container 42. (Refer to...) Figure 5 The waste removal mechanism 44 includes a telescopic component 441, a rotating shaft 442, and a rotating screening block 443. The telescopic component 441 includes a lifting bracket 4411 and a moving block 4412. One end of the lifting bracket 4411 is fixedly connected to one end of the receiving station 12. A lifting groove is provided on one side of the lifting bracket 4411. A lifting block is fixedly installed on one side of the moving block 4412. The lifting block is embedded in the lifting groove and slides along the length of the lifting groove to achieve a sliding connection between the lifting block and the lifting bracket 4411. A rotating hole is provided on one side of the moving block 4412, and the rotating shaft 442 is rotatably connected to the moving block 4412 through the rotating hole. A fixing hole is provided on one side of the rotating screening block 443. The rotating shaft 442 passes through the fixing hole and is fixedly connected to the rotating screening block 443 through the fixing hole. The rotating screening block 443 has a waste recycling ramp 4431 at the end furthest from the receiving station 12, with an inclination angle symmetrical to that of the waste guide ramp 421. The rotating screening block 443 has a waste pushing ramp 4432 at the same inclination angle as the waste guide ramp 421 at the end closest to the receiving station 12. A pressure sensor is installed on the waste pushing ramp 4432, which can analyze the pressure value to determine the number of silencer parts on the waste pushing ramp 4432. The rotating shaft 442 can drive the rotating screening block 443 to rotate, thereby switching the end face facing the waste recycling tank 43, so that the waste pushing ramp 4432 or the waste recycling ramp 4431 faces the waste recycling tank 43.

[0040] Reference Figure 6The second image acquisition component 8 includes a second acquisition bracket 81 and a second camera 82. One end of the second acquisition bracket 81 is fixedly connected to the inner wall of the sliding recovery channel 41, and the other end of the second acquisition bracket 81 away from the sliding recovery channel 41 is fixedly connected to the second camera 82. The second camera 82 faces the waste recycling tank 43 and is used to capture image information of the waste recycling tank.

[0041] When there are no muffler workpieces stopped above the waste recycling tank 43, the moving block 4412 is controlled to descend along the length of the lifting tank to the preset recycling position, and then the rotation angle of the rotating shaft 442 is adjusted, referring to... Figure 7 The waste recycling ramp 4431 is aligned with the waste recycling tank 43, so that the muffler workpiece falling from the waste recycling tank 43 falls along the waste recycling ramp 4431 into the receiving station 12 for reloading.

[0042] When a muffler workpiece is stopped above the waste recycling tank 43, the rotation angle of the rotating shaft 442 is adjusted, referring to... Figure 8 The waste is pushed away from the inclined plane 4432 so that it faces the waste recycling tank 43, and the moving block 4412 is controlled to rise along the length of the lifting tank, so that the waste pushing inclined plane 4432 and the waste guiding inclined plane 421 are joined together, and the muffler workpiece located above the waste recycling tank 43 falls into the waste recycling container 42 under the action of the waste pushing inclined plane 4432 and the waste guiding inclined plane 421.

[0043] The limit sensing baffle 5 is arrayed with multiple pressure sensors along its length to collect contact point information of the muffler workpiece above the detection gap channel 6. Specifically, when a defective muffler workpiece gets stuck above the detection gap channel 6, the arrayed pressure sensors can obtain the current continuous contact points on the limit sensing baffle 5. By forming a straight line from the continuous contact points, the length of the currently abutting workpiece can be obtained. When the length of the currently abutting object is the same as the length of the muffler workpiece, it can be determined that the outer diameter of the muffler workpiece is too large, and there is a situation where a single muffler workpiece is stuck above the detection gap channel 6. This muffler workpiece is a defective muffler workpiece. At this time, the control push cylinder 32 pushes the defective muffler workpiece along the length direction of the limit sensing baffle 5 to the sliding recovery channel 41. When the length of the object being contacted is inconsistent with the length of the muffler workpiece, it can be determined that it is not a single muffler workpiece that is contacting the detection gap channel 6. There may be multiple muffler workpieces interfering with each other or a single workpiece being misaligned. In this case, the push cylinder 32 is controlled to push along the length direction of the limit sensing baffle 5 to the contact point between the muffler workpiece and the limit sensing baffle 5 (for example, if the distance from the contact point furthest from the push cylinder 32 to the push cylinder is 20 cm, then the push distance required for the push cylinder to perform the muffler placement correction operation is 20 cm), so as to change the placement posture of the muffler workpiece on the feeding slope 11 and enable it to fall normally into the detection gap channel 6.

[0044] Based on the same inventive concept, embodiments of the present invention provide an automatic feeding method for muffler processing.

[0045] Reference Figure 9 An automatic feeding method for muffler processing includes: Step S1: Obtain the lifting pressure value corresponding to the inclined surface 133.

[0046] The lifting pressure value refers to the pressure detection value generated by the airbag on the inclined surface 133 of the material bearing after being squeezed by the workpiece of the muffler. It is collected by the pressure detection unit arranged inside the airbag and sent to the control system.

[0047] Step S2: When the lifting pressure value exceeds the preset effective silencer workpiece pressure threshold, obtain the preset lifting and feeding scheme.

[0048] The effective silencer workpiece pressure threshold refers to the pressure threshold preset by the control system. If the lifting pressure value does not exceed the effective silencer workpiece pressure threshold, it means that there is no silencer workpiece on the material bearing inclined surface 133.

[0049] The lifting and feeding scheme refers to the control scheme of lifting and lowering between adjacent feeding plates 13 to gradually transport the muffler workpiece to the feeding ramp 11.

[0050] When the lifting pressure value exceeds the effective pressure threshold of the muffler workpiece, it indicates that there is a corresponding feeding plate 13 with a bearing slope 133 supporting the muffler workpiece. Therefore, a lifting feeding scheme is obtained to execute the subsequent feeding operation.

[0051] Step S3: Control the feeding plate mechanism 1 to perform the feeding operation according to the lifting and feeding scheme.

[0052] The feeding operation refers to the operation of gradually conveying the muffler workpiece from the receiving station 12 to the feeding ramp 11 by sequentially lifting adjacent feeding plates 13 in stages. During this process, the length constraints of the feeding sliding groove 132 and the feeding sliding block 131 are used to automatically control the adjacent feeding plates 13 to form a reasonable height difference, which ensures that the muffler workpiece can move stably step by step, and will not cause the workpiece to be damaged due to excessive height difference.

[0053] Step S4: Obtain the image information of the feeding conveyor belt and parse the image information of the feeding conveyor belt based on the edge recognition algorithm to obtain the outline of the muffler workpiece.

[0054] The image information of the feeding conveyor belt refers to the image data obtained by the No. 1 camera 72 taking pictures of the working area of ​​the feeding conveyor belt 2, which is used to determine whether there is a silencer workpiece on the feeding conveyor belt 2.

[0055] The muffler workpiece outline refers to the closed outline shape enclosed by the outer edge of the muffler workpiece in the image information of the feeding conveyor belt. It is used to identify the shape characteristics of the muffler workpiece in order to determine whether there is a muffler workpiece on the feeding conveyor belt 2.

[0056] Step S5: When the outline of the muffler workpiece is present, control the feeding conveyor belt 2 to perform the transmission operation.

[0057] The transfer operation refers to starting the feeding conveyor belt 2 to transfer the muffler workpiece that has successfully fallen into the detection gap channel 6 to the discharge station 9, and finally transport it to the entrance of the processing channel. If the complete outline of the muffler workpiece is not detected, it means that no workpiece has entered the subsequent process, and the feeding conveyor belt 2 should remain stationary and wait.

[0058] When the outline of the muffler workpiece is present, it indicates that the muffler workpiece has successfully fallen into the detection gap channel 6, and the feeding conveyor belt 2 can be controlled to perform the transmission operation.

[0059] The methods for performing the feeding operation according to the lifting feeding scheme include: Step S50: During the feeding operation, the pressure value of the feeding plate is acquired in real time.

[0060] The pressure value of the feeding plate refers to the pressure detection value output by the airbag on the material-bearing inclined surface 133 of each feeding plate 13. It is collected in real time by the pressure detection unit arranged inside the corresponding airbag and sent to the control system to determine whether there is a silencer workpiece on the feeding plate 13.

[0061] Step S51: When the pressure value of the feed plate is 0, determine the invalid feed plate number and accumulate the number of invalid feed plate numbers.

[0062] Invalid feeder plate number refers to the feeder plate number that is not currently carrying the muffler workpiece. If the muffler workpiece falls accidentally during the conveying process, the original feeder plate 13 carrying the muffler workpiece will not detect a pressure value, and the corresponding feeder plate number will be marked as invalid feeder plate number.

[0063] The number of invalid feeder plate numbers refers to the number of invalid feeder plate numbers.

[0064] When the pressure value of the feed plate is 0, it means that the feed plate 13 is not carrying the silencer workpiece. It is marked as invalid feed plate 13 and the number of invalid feed plate numbers is accumulated.

[0065] Step S52: When the number of invalid feeding plates is equal to the preset default number of feeding plates, control the feeding plate mechanism 1 to perform a fall operation according to the preset default height parameters.

[0066] The default number of feed plates refers to the total number of feed plates 13 in feed plate mechanism 1.

[0067] The default height parameter refers to the preset initial height parameter of each feeding plate 13 in the initial reset state of the feeding plate mechanism 1.

[0068] The retraction operation involves controlling all feeding plates 13 to gradually descend and reset to their initial height, awaiting the next feeding operation.

[0069] When the number of invalid feeder plates is the same as the default number of feeder plates, it means that none of the feeder plates 13 are carrying the silencer workpiece. At this time, control all feeder plates 13 to fall back to the initial height and wait for the next feeding operation.

[0070] Step S53: When the number of invalid feeder plates is not equal to the number of default feeder plates, continue to perform the feeding operation according to the lifting feeding scheme.

[0071] When the number of invalid feeding plates is not equal to the number of default feeding plates, it means that at least one feeding plate 13 is still carrying the muffler workpiece. The muffler workpiece has not fallen accidentally during the conveying process. Therefore, there is no need to interrupt the current lifting and feeding process. Continue to control each feeding plate 13 to lift and lower in sequence according to the lifting and feeding scheme, and gradually convey the muffler workpiece to the feeding ramp 11.

[0072] This also includes: Step S6: Obtain the pressure value of the limit sensing baffle corresponding to the array pressure sensor.

[0073] The contact pressure value of the limit sensing baffle refers to the contact pressure value of the muffler workpiece above the detection gap channel 6 and the limit sensing baffle 5 collected by the array pressure sensor on the limit sensing baffle 5. Each point corresponds to an independent contact pressure detection result. The detection results of all points together form the limit sensing baffle contact pressure value set, which is used to determine the contact position distribution between the muffler workpiece and the limit sensing baffle 5.

[0074] Step S60: When there is a limit sensing baffle abutting pressure value, obtain the sensor number corresponding to the limit sensing baffle abutting pressure value.

[0075] The sensor number refers to the number corresponding to the pressure sensor that detected the pressure, and is used to mark the sensor position that is currently in contact with the muffler workpiece.

[0076] When there is a pressure value at the limit sensor baffle, it indicates that the silencer workpiece has not fallen into the detection gap channel 6 and has made contact with the limit sensor baffle 5. Therefore, the corresponding numbers of all pressure sensors that have detected pressure are obtained to determine the distribution of contact points in order to distinguish the type of abnormal working condition.

[0077] Step S61: Determine the sensor location based on the sensor number.

[0078] The sensor position refers to the specific distribution of all pressure sensors that come into contact with the muffler workpiece on the limit sensing baffle 5, which is used to determine the specific type of the current abnormal working condition by combining the distribution characteristics of the points.

[0079] Step S62: Determine the number of consecutive sensors based on the sensor positions, and determine the length of the currently stuck workpiece based on the number of consecutive sensors.

[0080] The number of continuous sensors refers to the total number of adjacent sensors that detect pressure and are continuously distributed along the length of the limit sensing baffle 5. It is used to determine the degree of deviation in the outer diameter of the muffler workpiece by combining the sensor position corresponding to the sensor number. The current stuck workpiece length refers to the total length occupied by the muffler workpiece along the length of the detection gap channel 6 when it is currently stuck above the detection gap channel 6. It is calculated by multiplying the number of continuous sensors by the spacing between adjacent sensors along the length direction.

[0081] Step S63: If the current stuck workpiece length is equal to the preset muffler workpiece length threshold, output an abnormal workpiece size signal.

[0082] The muffler workpiece length threshold refers to the length threshold of a single muffler workpiece that is pre-stored by the control system.

[0083] The abnormal workpiece size signal refers to the control signal output when the outer diameter of the muffler workpiece is out of tolerance and cannot fall into the detection gap channel 6. It is used to start the push assembly 3 to perform the waste pushing operation.

[0084] If the length of the currently stuck workpiece is equal to the preset threshold for the length of the muffler workpiece, it indicates that there is a muffler workpiece with an outer diameter that is too large, preventing it from falling into the detection gap channel 6. In this case, the muffler workpiece needs to be pushed from the feeding ramp 11 to the waste recycling tank 43 for further processing to avoid jamming and blocking the feeding of the entire muffler workpiece on the detection feeding ramp 11.

[0085] Step S64: In response to the abnormal workpiece size signal, control the push assembly 3 to perform a scrap pushing operation.

[0086] The waste pushing operation refers to controlling the pushing cylinder 32 to push the out-of-tolerance muffler workpiece located above the detection gap channel 6 from the area of ​​the feeding inclined surface 11, so that it rolls down into the sliding recovery channel 41 and moves along the inclined surface of the sliding recovery channel 41, eventually falling into the waste recycling tank 43 for subsequent recycling processing. The waste pushing operation will cause some qualified muffler workpieces to fall into the waste recycling tank 43. The recycling of qualified muffler workpieces will be introduced later in steps S720 to S722.

[0087] Step S65: If the current stuck workpiece length is not equal to the silencer workpiece length threshold, accumulate the current contact time based on the sensor number.

[0088] The current contact duration refers to the cumulative duration for which contact pressure is continuously detected at the current point. It is used to determine whether the current contact is a short-term contact caused by accidental jamming or a long-term contact caused by continuous jamming of the workpiece.

[0089] If the current stuck workpiece length is not equal to the muffler workpiece length threshold, it means that the outer diameter of the muffler workpiece has not exceeded the upper limit of the size. It may be that the contact between multiple muffler workpieces causes the muffler workpiece closest to the detection gap channel 6 to be placed abnormally and unable to fall into the detection gap channel 6 normally. At this time, it is necessary to accumulate the contact time of all the points where the pressure is detected to further determine the stuck situation.

[0090] Step S66: If the current arrival time exceeds the preset abnormal arrival time threshold, output a manual alarm signal.

[0091] The abnormal contact duration threshold refers to the preset maximum duration during which the silencer workpiece is allowed to remain in contact with the limit sensor baffle 5 due to accidental misalignment.

[0092] Manual alarm signals refer to the control signals that trigger the on-site alarm devices, used to remind on-site operators to intervene and adjust jammed or misaligned muffler workpieces, so as to prevent the jamming from continuously affecting the overall feeding efficiency of the line.

[0093] If the current cumulative contact time exceeds the abnormal contact time threshold, it means that the muffler placement position correction operation cannot change the placement position and posture of the muffler workpiece on the feeding ramp 11. At this time, manual intervention is required, so a manual alarm signal is output.

[0094] Step S67: If the current contact time does not exceed the abnormal contact time threshold, determine the position of the end workpiece based on the sensor position, and control the push component 3 to perform the muffler placement position correction operation according to the position of the end workpiece.

[0095] The end workpiece position refers to the contact point position of the muffler workpiece obtained by the array sensor on the limit sensing baffle 5, which is the contact point position furthest from the push cylinder 32.

[0096] The muffler placement correction operation refers to repeatedly pushing the muffler workpiece on the feeding ramp 11 by pushing the cylinder 32 according to the position of the end workpiece as the pushing length, so as to change the placement posture of the muffler workpiece on the feeding ramp 11.

[0097] If the current contact time does not exceed the abnormal contact time threshold, it means that it is not yet possible to determine whether the posture of the muffler workpiece on the feeding ramp 11 can be changed. The muffler workpiece on the feeding ramp 11 can be repeatedly pushed by the cylinder 32 to change the situation where the qualified size muffler workpiece cannot fall into the detection gap channel 6 due to mutual jamming.

[0098] This also includes: Step S68: Collect image information of the waste recycling tank and obtain the outline of the currently occupied workpiece through an edge recognition algorithm.

[0099] The image information of the waste recycling tank refers to the image data of the area of ​​the waste recycling tank 43 captured by the second camera 82, which is used to identify whether there is a muffler workpiece stuck above the waste recycling tank 43.

[0100] The current occupant workpiece contour refers to the closed contour of the outer edge of the muffler workpiece that is stuck above the waste recycling tank 43, obtained after edge recognition of the image of the waste recycling tank 43 acquired by the second camera 82.

[0101] Step S69: Assign the current occupant workpiece number based on the current occupant workpiece contour, and determine the current occupant workpiece contour position.

[0102] The current occupant workpiece number refers to the unique identification number assigned by the control system to the unqualified muffler workpieces that are identified as stagnant above the waste recycling tank 43, which is used to distinguish muffler workpieces that have been stagnant for different periods of time.

[0103] The current position of the workpiece outline refers to the coordinate distribution range of the current workpiece outline in the image information of the waste recycling tank.

[0104] Step S70: Based on the current position of the workpiece outline, obtain the position change corresponding to the current workpiece number in real time.

[0105] The position change refers to the change in the coordinate distribution of the outline of the currently occupied workpiece in two consecutively acquired images, which is used to determine whether the stalled workpiece has been discharged or is still above the waste recycling tank 43.

[0106] Step S71: When the position change is 0, accumulate the occupation time corresponding to the current occupied workpiece number.

[0107] The occupation time refers to the cumulative time that the muffler workpiece corresponding to the current occupation workpiece number remains above the waste recycling tank 43.

[0108] When the position change is 0, it means that the muffler workpiece has been stuck above the waste recycling tank 43 and has not slid down and been discharged on its own. Therefore, the occupation time of the workpiece is accumulated to analyze the jamming situation.

[0109] Step S72: When the occupation time exceeds the abnormal contact time threshold, control the waste removal mechanism 44 to perform waste removal operation according to the preset waste removal plan.

[0110] The waste removal scheme refers to adjusting the rotation angle of the rotating shaft 442 so that the waste push-away slope 4432 is directly facing the waste recycling tank 43. Then, the moving block 4412 is controlled to slide along the length of the lifting tank, so that the unqualified muffler workpiece above the waste recycling tank 43 comes into contact with the waste push-away slope 4432. The moving block 4412 stops moving when it reaches the splicing position of the waste push-away slope 4432 and the waste guide slope 421, so that the unqualified workpiece slides down the two slopes into the waste recycling container 42. This scheme completes the automatic removal of the stagnant waste and avoids the waste from blocking the waste recycling tank 43 for a long time.

[0111] The waste removal operation involves adjusting the rotation angle of the rotating shaft 442 so that the waste is pushed away from the inclined plane 4432 and directly facing the waste recycling tank 43. Then, the moving block 4412 is controlled to slide along the length of the lifting trough, as shown in the reference... Figure 8The defective muffler workpiece above the waste recycling tank 43 is brought into contact with the waste pushing slope 4432 until the moving block 4412 moves to the splicing position of the waste pushing slope 4432 and the waste guide slope 421 and then the movement stops.

[0112] When the occupation time exceeds the abnormal contact time threshold, it indicates that the muffler workpiece has been stuck above the waste recycling tank 43 and cannot slide down on its own to complete the recycling. It can be initially determined that the muffler workpiece is an unqualified workpiece with an excessively large outer diameter (at this time, there may be multiple muffler workpieces sticking to each other and forming a jam during the process of sliding down to the waste recycling tank 43, and the specific judgment process will be introduced later). It is necessary to perform a waste removal operation to discharge it into the waste recycling container 42.

[0113] When the occupancy time does not exceed the abnormal contact time threshold, the waste rejection mechanism 44 will maintain the preset default placement state. The default placement state means that the rotating shaft 442 is rotated so that the waste recycling ramp 4431 is directly opposite the waste recycling trough 43, as shown in the reference. Figure 7 This allows the muffler workpiece falling from the waste recycling tank 43 to move directly along the waste recycling ramp 4431 to the receiving station 12 under the action of gravity, so that it can be reloaded.

[0114] The specific method for controlling the waste removal mechanism 44 to perform waste removal operations according to the waste removal plan also includes: Step S720: During the waste removal operation, the removal lifting pressure is acquired in real time.

[0115] The lifting pressure refers to the pressure value collected in real time by the pressure sensor installed on the inclined plane 4432 as the waste material on the rotating screening block 443 is pushed away during the lifting and moving process of the moving block 4412.

[0116] Step S721: When the lifting pressure does not exceed the preset reference silencer workpiece pressure threshold, perform the waste removal operation according to the waste removal plan.

[0117] The reference silencer workpiece pressure threshold refers to the pre-set pressure reference value corresponding to a single qualified silencer workpiece on the scrap pushing slope 4432, used to determine whether the number of workpieces stuck on the current pushing slope exceeds a single one.

[0118] When the lifting pressure does not exceed the reference silencer workpiece pressure threshold, it indicates that there is only a single defective workpiece stuck. The workpiece can be removed according to the scrap removal plan.

[0119] Step S722: When the rejection lifting pressure exceeds the reference silencer workpiece pressure threshold, stop the scrap rejection operation, obtain the preset scrap back push scheme, and execute the scrap back push operation according to the scrap back push scheme.

[0120] When the lifting pressure exceeds the reference silencer workpiece pressure threshold, it indicates that the rotating screening block 443 simultaneously abuts against two or more silencer workpieces during the lifting process. At this time, the silencer workpieces are stuck above the waste recycling tank 43 and cannot slide down to complete the recycling. The reason may be that the silencer workpieces are stuck together, rather than that the outer diameter of the silencer workpieces is too large. Therefore, it is necessary to stop the waste removal operation.

[0121] By performing a waste push-back operation, the rotating screening block 443 lifts the front row of stuck workpieces, stacking them on top of the rear row of workpieces. Once the moving block 4412 falls back down, the rear row of workpieces slides down to the inlet of the waste recycling tank 43 under gravity. This method changes the workpiece stacking posture, which can not only handle the problem of stuck and interrupted workpieces with abnormal outer diameters, but also prevent qualified workpieces from being mistakenly judged as waste due to mutual contact, thereby improving material recovery rate and reducing production losses.

[0122] The waste back-pushing scheme involves first controlling the moving block 4412 to move downwards along the lifting trough, returning to the preset initial position of the moving block 4412. Then, adjusting the rotation angle of the rotating shaft 442 so that the waste recycling ramp 4431 faces the waste recycling trough 43. The moving block 4412 is then controlled to move upwards along the lifting trough, causing multiple stuck muffler workpieces to sequentially abut against the waste recycling ramp 4431. The workpiece is then lifted, and gravity causes it to slide down the waste recycling ramp 4431 onto a muffler workpiece that is waiting to fall into the waste recycling trough 43, thus changing the placement of the stuck muffler workpieces. The initial position of the moving block 4412 refers to the preset initial stopping position at the bottom of the lifting trough before the moving block 4412 performs the rejection operation.

[0123] The waste pushback operation refers to first controlling the moving block 4412 to move downward along the lifting groove and fall back to the initial position of the moving block 4412, then adjusting the rotation angle of the rotating shaft 442 to switch the waste push away inclined surface 4432 to the waste recycling inclined surface 4431 facing the waste recycling groove 43, and then controlling the moving block 4412 to slowly move upward along the lifting groove so that the multiple muffler workpieces stuck in the waste recycling groove 43 come into contact with the waste recycling inclined surface 4431.

[0124] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0125] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic feeding device for muffler processing, comprising a discharge station (9), a feeding plate mechanism (1) for lifting and conveying muffler workpieces, and a feeding conveyor belt (2) for conveying the muffler workpieces lifted by the feeding plate mechanism (1) to the discharge station (9), characterized in that: It also includes a pushing assembly (3) for pushing the muffler workpiece stuck between the feeding plate mechanism (1) and the feeding conveyor belt (2) and a waste recycling assembly (4) for recycling the muffler workpiece pushed by the pushing assembly (3). The feeding plate mechanism (1) includes a feeding ramp (11) located at the top and inclined downward toward the feeding conveyor belt (2); the feeding conveyor belt (2) has a limiting sensing baffle (5) on the side away from the feeding ramp (11); a detection gap channel (6) is formed between the edge of the feeding ramp (11) and the limiting sensing baffle (5) for screening the muffler workpiece and letting it fall onto the feeding conveyor belt (2), and the width of the detection gap channel (6) is the same as the outer diameter of the muffler workpiece; When the muffler workpiece passes through the detection gap channel (6), the feeding conveyor belt (2) transports the muffler workpiece to the discharge station (9); when the muffler workpiece is stuck in the detection gap channel (6), the pushing component (3) pushes the muffler workpiece along the limit sensing baffle (5) to the waste recycling component (4).

2. The automatic feeding device for muffler processing according to claim 1, characterized in that, The waste recycling assembly (4) includes a downward sliding recycling channel (41) with an inclined surface and a waste recycling container (42) disposed at the end of the downward sliding recycling channel (41) for accommodating defective muffler workpieces; a waste recycling trough (43) is provided between the end of the downward sliding recycling channel (41) and the waste recycling container (42), and a waste rejection mechanism (44) is provided in the waste recycling trough (43) for lifting and classifying the muffler workpieces; the width of the waste recycling trough (43) is the same as the outer diameter of the muffler workpiece.

3. The automatic feeding device for muffler processing according to claim 2, characterized in that, The feeding plate mechanism (1) further includes a receiving station (12) for accommodating the muffler workpiece and a plurality of feeding plates (13) for transferring the muffler workpiece from the receiving station (12) upward to the feeding ramp (11); the feeding plates (13) are installed in the receiving station (12) and adjacent feeding plates (13) are slidably connected; each feeding plate (13) has a material-bearing ramp (133) at its top, and the material-bearing ramp (133) and the adjacent feeding plate (13) form a receiving groove for accommodating the muffler workpiece during the lifting process; When the feed plate (13) is raised, the material-bearing inclined surface (133) of the adjacent feed plate (13) docks to transfer the muffler workpiece.

4. The automatic feeding device for muffler processing according to claim 3, characterized in that, The waste removal mechanism (44) includes a telescopic member (441) installed in the waste recycling tank (43) and extending vertically, and a rotating screening block (443) rotatably installed on the telescopic member (441) and rising and falling with the telescopic member (441). The rotating screening block (443) has a waste pushing slope (4432) on the side near the receiving station (12), and a waste recycling slope (4431) on the side away from the receiving station (12). The waste pushing slope (4432) and the waste recycling slope (4431) are inclined in opposite directions. The waste pushing slope (4432) is inclined downward towards the waste recycling container (42). When the muffler workpiece slides down the sliding recovery channel (41) and gets stuck in the waste recovery tank (43), the rotating screening block (443) rises and guides the muffler workpiece to the waste recovery container (42) through the waste push-away ramp (4432); when the muffler workpiece falls from the waste recovery tank (43), the waste recovery ramp (4431) guides the muffler workpiece back to the feeding plate mechanism (1).

5. An automatic feeding device for muffler processing according to claim 1, characterized in that, The limiting sensing baffle (5) is arrayed with multiple pressure sensors along its length to collect contact point information of the silencer workpiece above the detection gap channel (6).

6. An automatic feeding method for muffler processing, applied to an automatic feeding device for muffler processing as described in any one of claims 1 to 5, characterized in that, include: Obtain the lifting pressure value corresponding to the inclined surface (133); When the lifting pressure value exceeds the preset effective silencer workpiece pressure threshold, the preset lifting and feeding scheme is obtained. The feeding plate mechanism (1) is controlled according to the lifting and feeding scheme to perform the feeding operation; The image information of the feeding conveyor belt is acquired and parsed based on the edge recognition algorithm to obtain the outline of the muffler workpiece. When the outline of the muffler workpiece is present, control the feeding conveyor (2) to perform the transmission operation.

7. The automatic feeding method for muffler processing according to claim 6, characterized in that, The methods for performing material feeding operations according to the lifting and feeding plan include: The pressure value of the feeding plate is acquired in real time during the feeding operation. When the feed plate pressure value is 0, determine the invalid feed plate number and accumulate the number of invalid feed plate numbers; When the number of invalid feeder plates is equal to the preset default number of feeder plates, the feeder plate mechanism (1) is controlled to perform a fall-back operation according to the preset default height parameters; When the number of invalid feeder plates is not equal to the number of default feeder plates, continue to perform the feeding operation according to the lifting feeding scheme.

8. The automatic feeding method for muffler processing according to claim 7, characterized in that, Also includes: Obtain the contact pressure value of the limit sensor baffle; When there is a limit sensor baffle abutting pressure value, obtain the sensor number corresponding to the limit sensor baffle abutting pressure value; Determine sensor location based on sensor number; The number of consecutive sensors is determined based on the sensor positions, and the length of the currently stuck workpiece is determined based on the number of consecutive sensors. If the current stuck workpiece length is equal to the preset silencer workpiece length threshold, output an abnormal workpiece size signal; In response to an abnormal workpiece size signal, the push assembly (3) is controlled to perform a scrap pushing operation; If the current length of the stuck workpiece is not equal to the silencer workpiece length threshold, the current contact time is accumulated based on the sensor number; If the current arrival time exceeds the preset abnormal arrival time threshold, a manual alarm signal will be output. If the current contact time does not exceed the abnormal contact time threshold, the position of the end workpiece is determined based on the sensor position, and the push component (3) is controlled to perform the muffler placement position correction operation according to the position of the end workpiece.

9. An automatic feeding method for muffler processing according to claim 8, characterized in that, Also includes: Collect image information of the waste recycling tank and obtain the outline of the currently occupied workpiece through an edge recognition algorithm; Assign a current workpiece number based on the current workpiece outline and determine the current workpiece outline position; Based on the current position of the workpiece outline, the position change corresponding to the current workpiece number is obtained in real time. When the position change is 0, the occupation time corresponding to the current occupied workpiece number is accumulated; When the occupation time exceeds the abnormal contact time threshold, the waste removal mechanism (44) is controlled to perform waste removal operation according to the preset waste removal plan.

10. An automatic feeding method for muffler processing according to claim 9, characterized in that, The specific methods for controlling the waste removal mechanism (44) to perform waste removal operations according to the waste removal plan also include: The removal lifting pressure is acquired in real time during the waste removal operation; When the lifting pressure does not exceed the preset reference silencer workpiece pressure threshold, the waste removal operation is carried out according to the waste removal plan. When the ejection pressure exceeds the reference silencer workpiece pressure threshold, the scrap removal operation is stopped, and the preset scrap back push scheme is obtained. The scrap back push operation is then executed according to the scrap back push scheme.

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