A polytetrafluoroethylene cutting and processing equipment based on visual recognition

Abstract

The present invention belongs to the technical field of polytetrafluoroethylene cutting and processing equipment, and discloses a polytetrafluoroethylene cutting and processing equipment based on visual recognition, including a workbench, and an automatic unloading mechanism is arranged on the upper surface of the workbench, and the automatic unloading mechanism includes a first servo motor, a lever, a chuck and an unloading box. The polytetrafluoroethylene cutting and processing equipment based on visual recognition can realize automatic equidistant slicing of polytetrafluoroethylene by arranging an equidistant slicing processing mechanism, thereby meeting specific processing requirements. At the same time, a high-definition camera is used to capture the end face image of the head end of polytetrafluoroethylene, and the image is analyzed and processed to effectively detect the unevenness, burrs or deflection of the head end face. Once the above situation is detected, the equidistant slicing processing mechanism is controlled to perform a pre-trim cutting action on the head end face of polytetrafluoroethylene to correct the end face, so that the slicing action is performed after it is made flatter, thereby improving the accuracy and quality of polytetrafluoroethylene slicing.

Description

Technical Field

[0001] The invention belongs to the technical field of polytetrafluoroethylene cutting and processing equipment, in particular to a polytetrafluoroethylene cutting and processing equipment based on visual recognition. Background Art

[0002] Polytetrafluoroethylene is a common polymer material belonging to the fluoroplastic family. It is a polymer made from fluorine atoms and ethylene monomers through polymerization reaction. It has been widely used in industrial production and is often used to manufacture seals, pipes, valves, lubricating materials, coatings, etc. It also has certain applications in medical and food processing fields.

[0003] After the existing polytetrafluoroethylene suitable for the medical field is processed, in order to facilitate the subsequent use of the polytetrafluoroethylene, the polytetrafluoroethylene needs to be cut into slices. At present, most of the polytetrafluoroethylene is cut into slices by people and machines. First, the polytetrafluoroethylene is placed on a rotating machine, and the rotating machine is started to drive the polytetrafluoroethylene to rotate. Then, a person holds a tool to contact the polytetrafluoroethylene to cut it into slices. Since traditional manual cutting requires the operator to manually control the tool, there are problems such as high labor intensity, inconsistent cutting thickness and unstable cutting quality. At the same time, the head end of the processed polytetrafluoroethylene is prone to unevenness, burrs or deflection. Since the existing polytetrafluoroethylene processing equipment lacks pre-trimming function, the polytetrafluoroethylene cannot be trimmed before slicing, resulting in quality defects in the sliced ​​products. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a polytetrafluoroethylene cutting and processing equipment based on visual recognition, which has the advantages of solving the problems of high labor intensity, inconsistent cutting thickness, unstable cutting quality, and adding a pre-trimming function to the existing polytetrafluoroethylene processing equipment to improve cutting efficiency and consistency, reduce labor intensity, improve cutting quality, and reduce the occurrence of product defects.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polytetrafluoroethylene cutting and processing equipment based on visual recognition, comprising a workbench, an automatic unloading mechanism is arranged on the upper surface of the workbench, the automatic unloading mechanism comprises a first servo motor, a lever, a chuck and a unloading box, the first servo motor cooperates with the lever to drive the chuck to rotate intermittently, thereby realizing automatic unloading of the polytetrafluoroethylene placed in the unloading box.

[0006] A clamping and transporting mechanism is arranged between the top of the workbench and the automatic unloading mechanism, and the clamping and transporting mechanism includes a second servo motor and a clamping cylinder. After the automatic unloading mechanism automatically lowers the polytetrafluoroethylene placed in the unloading box to the placement groove above the workbench, the two sides of the polytetrafluoroethylene are clamped by the clamping cylinder, and then the clamped polytetrafluoroethylene is driven by the second servo motor to move horizontally from left to right along the length direction of the workbench, thereby realizing the conveying action of the polytetrafluoroethylene.

[0007] An equidistant slicing processing mechanism is arranged above the workbench near the automatic unloading mechanism and the right side of the clamping and transporting mechanism. The equidistant slicing processing mechanism includes a third servo motor, a displacement cylinder and a laser generator. After the clamping and transporting mechanism delivers the polytetrafluoroethylene into place, the third servo motor drives the displacement cylinder and the laser generator to move horizontally along the length direction of the workbench, and then drives the laser generator to move horizontally along the width direction of the workbench through the displacement cylinder, thereby realizing automatic equidistant slicing of the polytetrafluoroethylene.

[0008] It also includes a measuring unit, a collection unit, an analysis and processing unit and a control unit, wherein:

[0009] While the clamping and conveying mechanism is conveying the polytetrafluoroethylene, the measuring unit measures the moving distance of the polytetrafluoroethylene in real time and reports the measured value. The data is sent to the analysis unit and the measured value When the data is equal to the set corresponding threshold value, the analysis and processing unit generates a first analysis result and sends it to the control unit to control the clamping cylinders at different positions in the clamping and transporting mechanism to change their working states.

[0010] After the clamping and conveying mechanism transports the polytetrafluoroethylene to the position, the acquisition unit acquires an image of the end face of the first end of the polytetrafluoroethylene, and sends the acquired image data of the end face of the first end of the polytetrafluoroethylene to the analysis and processing unit for identification and processing to determine whether there is unevenness, burrs or deflection. If there is unevenness, burrs or deflection, the analysis and processing unit generates a second analysis result and sends it to the control unit to control the equidistant slicing processing mechanism to perform a pre-trim cutting action on the end face of the first end of the polytetrafluoroethylene.

[0011] After the pre-trim of the PTFE head is completed, the measuring unit measures the moving distance of the laser generator in real time and reports the measured value The data is sent to the analysis and processing unit to calculate the length of the cut segment required for equidistant slicing of polytetrafluoroethylene. The analysis and processing unit generates a third analysis result and sends it to the control unit to control the equidistant slicing processing mechanism to perform equidistant slicing on polytetrafluoroethylene, while changing the working state of the clamping cylinders at different positions in the clamping and transporting mechanism.

[0012] If there is no unevenness, burr or deflection, the analysis and processing unit directly calculates the length of the cut segment required for equidistant slicing of the polytetrafluoroethylene, and the analysis and processing unit generates a fourth analysis result and sends it to the control unit to control the equidistant slicing processing mechanism to directly perform equidistant slicing on the polytetrafluoroethylene, and at the same time change the working state of the clamping cylinders at different positions in the clamping and transporting mechanism. After the equidistant slicing of the polytetrafluoroethylene is completed, the control unit first controls the clamping and transporting mechanism and the equidistant slicing processing mechanism to restore to the initial state, and then controls the automatic unloading mechanism to perform automatic unloading on the polytetrafluoroethylene, thereby realizing continuous processing of the polytetrafluoroethylene.

[0013] Preferably, the automatic unloading mechanism also includes a transfer box fixedly mounted on the upper surface of the workbench, the feed port of the transfer box is connected with the discharge port of the unloading box by bolts, a support frame is fixedly mounted on the right surface of the transfer box, a closing plate is fixedly mounted on the left surface of the transfer box by bolts, a connecting roller is rotatably sleeved on the right surface of the transfer box, one end of the connecting roller extends to the interior of the transfer box and is detachably connected to the left surface of the closing plate, a transfer roller is slidably inserted on the outer surface of the connecting roller located in the transfer box, a plurality of groups of adjustment grooves distributed in a circular array are provided on the outer surface of the transfer roller, four of the adjustment grooves in each group have inner walls threadedly connected to limit rods, and the discharge port of the transfer box is located directly above the placement groove of the workbench.

[0014] Preferably, the chuck is fixedly sleeved on the outer surface of the connecting roller located on the right side of the transfer box, the lever is rotatably sleeved on the right side surface of the transfer box, the first servo motor is fixedly sleeved on the inner wall of the support frame, the output shaft of the first servo motor is fixedly sleeved with a cam through a coupling, a tension spring is sleeved between the lever and the support frame, the arc-shaped outer surface of the cam contacts the protruding end on the back side of the lever, and the pawl end of the lever is clamped with the inner wall of the slot of the chuck.

[0015] Preferably, the clamping and conveying mechanism also includes a conveying trough opened on the upper surface of the workbench and symmetrically distributed, the second servo motor is fixedly installed on the left upper surface of the workbench, the inner wall of the conveying trough is rotatably sleeved with a conveying screw, and the adjacent conveying screws are connected by a belt transmission mechanism, the output shaft of the second servo motor is connected to one end of one of the conveying screws through a coupling, the outer surface of the conveying screw is threadedly connected with a conveying block at equal intervals, the outer surface of the conveying block is slidably sleeved with the inner wall of the conveying trough, the clamping cylinder is fixedly installed on the upper surface of the conveying block, one end of the piston rod of the clamping cylinder is fixedly connected to the clamping block, a buffer pad is fixedly installed on one side surface of the clamping block, and a pressure sensor is embedded in the center of one side surface of the buffer pad.

[0016] Preferably, the equidistant slicing processing mechanism also includes an arc-shaped guide rail fixedly mounted on the upper surface of the workbench, upper surface mounting frames are fixedly mounted on both side surfaces of the workbench, symmetrically distributed displacement screws are rotatably sleeved on the inner wall of the slide groove of the mounting frame, displacement blocks are threadedly connected to the outer surface of the displacement screws, and adjacent displacement screws are connected through a belt transmission mechanism.

[0017] Preferably, the outer surface of the displacement block is slidably connected to the inner wall of the slide groove of the mounting frame, the third servo motor is fixedly installed on the right side surface of the mounting frame, the third servo motor is fixedly connected to one end of one of the displacement screws through a coupling, the displacement cylinder is embedded in the upper surface of one of the displacement blocks, one end of the piston rod of the displacement cylinder is fixedly connected to the front side of the outer shell of the laser generator, a stabilizing slide rod is fixedly connected to the back side of the outer shell of the laser generator, and the outer surface of the stabilizing slide rod is slidably connected to the inner wall of another displacement block.

[0018] Preferably, the measuring unit comprises a first laser ranging sensor, a first sensing sheet, a second laser ranging sensor and a second sensing sheet, wherein the first laser ranging sensor is fixedly mounted on the left inner wall of one of the conveying slots, the first sensing sheet is fixedly mounted on the left surface of one of the conveying blocks corresponding to the first laser ranging sensor, the second laser ranging sensor is fixedly mounted on the right side of the upper surface of the mounting frame, and the second sensing sheet is fixedly mounted on the right surface of one of the displacement blocks corresponding to the second laser ranging sensor, wherein:

[0019] Mark the installation position of the first laser distance sensor as the origin When the clamping and conveying mechanism drives the polytetrafluoroethylene to clamp and convey, the measuring unit obtains the distance between the first sensing sheet and the origin through the first laser distance sensor in cooperation with the first sensing sheet. The measured value Data, i.e. the distance that the polytetrafluoroethylene moves in the conveying trough in real time;

[0020] Mark the installation position of the second laser distance sensor as the starting point of the slice ,Under the cooperation of the second laser distance sensor and the second sensing sheet, the measuring unit obtains the distance between the current position of the laser generator and the starting point of the slice through the second laser distance sensor The measured value Data, if the laser generator does not move at this time, the current position of the laser generator is the starting point of the slice .

[0021] Preferably, the acquisition unit comprises a high-definition camera and an arc cylinder, wherein the arc cylinder is fixedly mounted on the inner surface of the arc guide track, both side surfaces of the shell of the high-definition camera are slidably sleeved with the inner walls of the guide grooves on both sides of the arc guide track, one end of the piston rod of the arc cylinder is fixedly connected to the back of the shell of the high-definition camera, and the high-definition camera and the laser generator are both located in the same vertical plane, wherein,

[0022] The piston rod of the arc cylinder extends to drive the high-definition camera to move in an arc shape along the guide groove track on the inner side of the arc guide track. The acquisition unit uses the high-definition camera to acquire images of the head end face of the polytetrafluoroethylene from different angles to generate image data of the head end face of the polytetrafluoroethylene at different angles.

[0023] Preferably, the analysis and processing unit includes a computing unit and a database, wherein:

[0024] On the moving path of the polytetrafluoroethylene clamping and conveying driven by the clamping and conveying mechanism, since the four supporting legs of the transfer box are connected to the upper surface of the workbench, and the installation positions of two of the supporting legs constitute an obstacle to the conveying of the polytetrafluoroethylene, forming an obstacle point. Therefore, when the two rightmost relative clamping cylinders of the clamping and conveying mechanism are about to contact the obstacle point for the first time, the calculation unit obtains the distance between the first sensor plate and the origin through the first laser distance sensor. The measured value Data, marking it as a fixed obstacle point This design is to facilitate subsequent obstacle avoidance and ensure the smooth progress of the transportation process. Multiple multiple thresholds, minimum thresholds and maximum thresholds are set. Specifically, multiple multiple thresholds are set in sequence as , the minimum threshold is set to , the maximum threshold is set to ,In addition, the distance measurements in this application are all in centimeters;

[0025] Measurement values ​​in real time When the data is equal to the set corresponding multiple threshold, the analysis and processing unit generates the first analysis result and sends it to the control unit. The control unit sends the first control instruction to the clamping and conveying mechanism to control the clamping cylinder at the corresponding position in the clamping and conveying mechanism to fully retract first, and then re-extend it after 10 seconds to clamp and convey the polytetrafluoroethylene again, so as to avoid the obstacle point. The data is equal to the set maximum threshold When the control unit controls the second servo motor of the clamping and conveying mechanism to stop.

[0026] Preferably, after the analysis and processing unit obtains the end surface image data of the polytetrafluoroethylene head end at different angles, the database is called to compare and identify the end surface image data of the polytetrafluoroethylene head end at different angles with the end surface image data of the polytetrafluoroethylene head end at different angles pre-stored in the database, to determine whether the end surface has unevenness, burrs or deflection. If unevenness, burrs or deflection exists, the control unit sends a second control instruction to the equidistant slicing processing mechanism to control the third servo motor in the equidistant slicing processing mechanism to first drive the laser generator to move horizontally to the left. Centimeters, the specific moving distance is set according to experience or experimental results, and then the displacement cylinder is controlled to drive the laser generator to perform pre-trim cutting on the end surface of the polytetrafluoroethylene head;

[0027] The specific calculation steps for the length of the cut section required for equidistant slicing of polytetrafluoroethylene are as follows:

[0028] A1. If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation formula is: A2. If the end surface of the polytetrafluoroethylene head is not uneven, burred or deflected, the calculation formula is: in, represents the length of the cut segment, represents the total length of the polytetrafluoroethylene to be sliced, Indicates the length of the last slice segment, usually a fixed value. Indicates the number of segments to be cut;

[0029] During the process of the equidistant slicing mechanism driving the laser transmitter to equidistantly slice polytetrafluoroethylene, when the two rightmost relative clamping cylinders of the clamping and transporting mechanism are located on the same straight line with the laser generator on the vertical plane, there are the following two situations:

[0030] S1. If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation unit obtains the distance between the current position of the laser generator and the starting point of the slice through the second laser ranging sensor. The measured value data and label it as , set multiple multiple thresholds, minimum thresholds and maximum thresholds, specifically: set multiple multiple thresholds in sequence as , the minimum threshold is set to , the maximum threshold is set to , in real-time measurement values When the data is equal to the set corresponding multiple threshold, the analysis processing unit generates a third analysis result and sends it to the control unit. The control unit sends a third control instruction to the clamping and conveying mechanism to control the clamping cylinder at the corresponding position in the clamping and conveying mechanism to fully retract first to avoid damage to the clamping cylinder. The data is equal to the set maximum threshold When the third servo motor of the equidistant slicing mechanism is controlled to stop by the control unit;

[0031] S2. If the end surface of the polytetrafluoroethylene head is not uneven, burred or deflected, the calculation unit obtains the distance between the current position of the laser generator and the starting point of the slice through the second laser ranging sensor. The measured value Data, that is, the current position of the laser generator is the starting point of the slice , which is different from S1, is that multiple multiple thresholds are set in sequence as , in real-time measurement values When the data is equal to the set corresponding multiple threshold, the analysis processing unit generates a fourth analysis result and sends it to the control unit. The control unit sends a fourth control instruction to the clamping and conveying mechanism to control the clamping cylinder at the corresponding position in the clamping and conveying mechanism to fully retract first to avoid damage to the clamping cylinder. The data is equal to the set maximum threshold When the third servo motor of the equidistant slicing mechanism is controlled to stop by the control unit.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention provides an automatic unloading mechanism, utilizes a first servo motor in conjunction with a lever to drive the chuck to rotate intermittently, and realizes automatic unloading of polytetrafluoroethylene placed in an unloading box, thereby improving production efficiency and reducing the need for manual operation.

[0034] 2. The present invention can effectively realize the clamping and horizontal movement and transportation of polytetrafluoroethylene by setting up a clamping and material conveying mechanism, thereby improving production efficiency and automation. At the same time, it can also reduce manual operations and improve the overall efficiency of the production line.

[0035] 3. The present invention can realize automatic equidistant slicing of polytetrafluoroethylene by setting up an equidistant slicing processing mechanism, thereby meeting specific processing requirements. At the same time, a high-definition camera is used to capture the end face image of the first end of the polytetrafluoroethylene, and the image is analyzed and processed to effectively detect the unevenness, burrs or deflection of the first end face. Once the above situation is detected, the equidistant slicing processing mechanism is controlled to perform a pre-trimming cutting action on the end face of the polytetrafluoroethylene first end to correct the end face, so that it is flatter before slicing, thereby improving the accuracy and quality of polytetrafluoroethylene slices. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 For the present invention Figure 1 A magnified view of the structure at center;

[0038] Figure 3 It is a three-dimensional diagram of the material box structure with different inner wall widths of the present invention;

[0039] Figure 4 This is a three-dimensional diagram of the connecting roller structure of the present invention;

[0040] Figure 5 It is a three-dimensional diagram of the limit rod structure of the present invention;

[0041] Figure 6 An exploded view of the support frame structure of the present invention;

[0042] Figure 7 This is a three-dimensional diagram of the adjusting slot structure of the present invention;

[0043] Figure 8 It is a three-dimensional diagram of the structure of the first laser ranging sensor of the present invention;

[0044] Fig. 9 A three-dimensional diagram of the clamping cylinder structure of the present invention;

[0045] Fig.10 This is a three-dimensional diagram of the arc-shaped guide track structure of the present invention;

[0046] Fig.11 This is an exploded view of the arc guide track structure of the present invention;

[0047] Fig.12 It is a schematic diagram of the working process of the present invention.

[0048] In the figure: 1. workbench; 2. first servo motor; 21. lever; 22. chuck; 23. unloading box; 24. transfer box; 25. support frame; 26. closing plate; 27. connecting roller; 28. transfer roller; 29. ​​adjusting slot; 210. limit rod; 211. convex plate; 212. tension spring; 3. second servo motor; 31. clamping cylinder; 32. conveying slot; 33. conveying screw rod; 34. conveying block; 35. buffer pad; 36. pressure sensor; 37. clamping block; 4. third Servo motor; 41. displacement cylinder; 42. laser generator; 43. arc guide rail; 44. mounting bracket; 45. displacement screw; 46. displacement block; 47. stabilizing slide bar; 5. measuring unit; 51. first laser ranging sensor; 52. first sensing sheet; 53. second laser ranging sensor; 54. second sensing sheet; 6. acquisition unit; 61. high-definition camera; 62. arc cylinder; 7. analysis and processing unit; 71. calculation unit; 72. database; 8. control unit. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figures 1 to 12 As shown, the present invention provides a polytetrafluoroethylene cutting and processing equipment based on visual recognition, including a workbench 1, an automatic unloading mechanism is arranged on the upper surface of the workbench 1, the automatic unloading mechanism includes a first servo motor 2, a lever 21, a chuck 22 and a unloading box 23, the first servo motor 2 cooperates with the lever 21 to drive the chuck 22 to rotate intermittently, and realizes automatic unloading action for the polytetrafluoroethylene placed in the unloading box 23.

[0051] A clamping and transporting mechanism is arranged between the top of the workbench 1 and the automatic unloading mechanism, and the clamping and transporting mechanism includes a second servo motor 3 and a clamping cylinder 31. After the automatic unloading mechanism automatically lowers the polytetrafluoroethylene placed in the unloading box 23 to the placement groove above the workbench 1, the clamping cylinder 31 first clamps the two sides of the polytetrafluoroethylene, and then drives the clamped polytetrafluoroethylene to move horizontally from left to right along the length direction of the workbench 1 through the second servo motor 3, thereby realizing the conveying action of the polytetrafluoroethylene.

[0052] An equidistant slicing mechanism is arranged above the workbench 1 on the right side near the automatic unloading mechanism and the clamping and transporting mechanism. The equidistant slicing mechanism includes a third servo motor 4, a displacement cylinder 41 and a laser generator 42. After the clamping and transporting mechanism delivers the polytetrafluoroethylene to the right, the third servo motor 4 drives the displacement cylinder 41 and the laser generator 42 to move horizontally along the length direction of the workbench 1, and then drives the laser generator 42 to move horizontally along the width direction of the workbench 1 through the displacement cylinder 41, thereby realizing automatic equidistant slicing of the polytetrafluoroethylene.

[0053] It also includes a measuring unit 5, a collecting unit 6, an analyzing and processing unit 7 and a control unit 8, wherein:

[0054] While the clamping and conveying mechanism is conveying the polytetrafluoroethylene, the measuring unit 5 measures the moving distance of the polytetrafluoroethylene in real time and reports the measured value to the The data is sent to the analysis and processing unit 7, and the measured value When the data is equal to the set corresponding threshold value, the analysis and processing unit 7 generates a first analysis result and sends it to the control unit 8 to control the clamping cylinders 31 at different positions in the clamping and conveying mechanism to change the working state.

[0055] After the clamping and conveying mechanism transports the polytetrafluoroethylene to the position, the acquisition unit 6 acquires an image of the end face of the polytetrafluoroethylene head end, and sends the acquired image data of the end face of the polytetrafluoroethylene head end to the analysis and processing unit 7 for identification and processing to determine whether there is unevenness, burrs or deflection. If there is unevenness, burrs or deflection, the analysis and processing unit 7 generates a second analysis result and sends it to the control unit 8 to control the equidistant slicing processing mechanism to perform pre-trimming and cutting action on the end face of the polytetrafluoroethylene head end.

[0056] After the pre-trim of the polytetrafluoroethylene head end is completed, the measuring unit 5 measures the moving distance of the laser generator 42 in real time and reports the measured value to the The data is sent to the analysis and processing unit 7 to calculate the length of the cut segment required for equidistant slicing of polytetrafluoroethylene. The analysis and processing unit 7 generates a third analysis result and sends it to the control unit 8 to control the equidistant slicing processing mechanism to perform equidistant slicing on polytetrafluoroethylene, while changing the working state of the clamping cylinder 31 at different positions in the clamping and transporting mechanism.

[0057] If there is no unevenness, burr or deflection, the analysis and processing unit 7 directly calculates the length of the cut segment required for equidistant slicing of the polytetrafluoroethylene, and the analysis and processing unit 7 generates a fourth analysis result and sends it to the control unit 8, so as to control the equidistant slicing processing mechanism to directly perform equidistant slicing on the polytetrafluoroethylene, and at the same time change the working state of the clamping cylinder 31 at different positions in the clamping and transporting mechanism. After the equidistant slicing of the polytetrafluoroethylene is completed, the control unit 8 first controls the clamping and transporting mechanism and the equidistant slicing processing mechanism to restore to the initial state, and then controls the automatic unloading mechanism to perform automatic unloading on the polytetrafluoroethylene, thereby realizing continuous processing of the polytetrafluoroethylene.

[0058] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the automatic unloading mechanism also includes a transfer box 24 fixedly mounted on the upper surface of the workbench 1. The feed port of the transfer box 24 is connected to the discharge port of the unloading box 23 through bolts. The material of the unloading box 23 is acrylic. Acrylic has good transparency, chemical stability and weather resistance, easy dyeing, easy processing, and beautiful appearance. In this application, the transparent acrylic material allows the operator to clearly observe the situation inside the unloading box 23, and make timely adjustments and processing, so as to better manage and control the production process. In addition, the inner wall width of the unloading box 23 of this application is set to three different sizes, such as Figure 3As shown, by setting the inner wall widths of different sizes, the operator can select the appropriate size of the unloading box 23 according to actual needs to meet the unloading requirements of polytetrafluoroethylene of different specifications. This design can improve production efficiency, reduce waste, and ensure the accuracy and stability of the unloading process. A support frame 25 is fixedly installed on the right surface of the transfer box 24, and a closing plate 26 is fixedly installed on the left surface of the transfer box 24 by bolts. A connecting roller 27 is rotatably sleeved on the right surface of the transfer box 24, and one end of the connecting roller 27 extends to the inside of the transfer box 24 and is detachably connected to the left surface of the closing plate 26. The outer surface of the connecting roller 27 located in the transfer box 24 is slidably plugged with a transfer roller 28, and the outer surface of the transfer roller 28 is provided with a plurality of groups of adjustment rollers distributed in a ring array. Grooves 29, the inner walls of the four adjustment grooves 29 in each group are all threadedly connected to the limit rods 210, and the detachable connection design is adopted between the connecting roller 27 and the closing plate 26, which can ensure that the connecting roller 27 is firmly fixed between the transfer box 24 and the closing plate 26. At the same time, when it is necessary to automatically unload polytetrafluoroethylene of different sizes, the unloading box 23 with different inner wall widths is replaced according to actual needs. Secondly, the closing plate 26 is removed from the left side of the transfer box 24, and the transfer roller 28 is removed from the connecting roller 27. At this time, the arc length distance between the adjacent limit rods 210 and the limit rods 210 is adjusted. After the adjustment is completed, they are reinstalled, and automatic unloading of polytetrafluoroethylene of different sizes can be realized. The discharge port of the transfer box 24 is located directly above the placement slot of the workbench 1;

[0059] The chuck 22 is fixedly sleeved on the outer surface of the connecting roller 27 located on the right side of the transfer box 24, the lever 21 is rotatably sleeved on the right side surface of the transfer box 24, the first servo motor 2 is fixedly sleeved on the inner wall of the support frame 25, and the output shaft of the first servo motor 2 is fixedly sleeved with a cam 211 through a coupling. A tension spring 212 is sleeved between the lever 21 and the support frame 25, the arc-shaped outer surface of the cam 211 contacts the protruding end on the back side of the lever 21, and the pawl end of the lever 21 is clamped with the inner wall of the slot of the chuck 22.

[0060] The above scheme is adopted: after the polytetrafluoroethylene to be sliced ​​is stacked in the unloading box 23, it is limited by the limit rod 210 arranged on the surface of the transfer roller 28. When the polytetrafluoroethylene processing equipment is operated for the first time, the control unit 8 controls the first servo motor 2 of the automatic unloading mechanism to start and rotate two circles. The first servo motor 2 drives the convex plate 211 to rotate with the axis of the output shaft of the first servo motor 2 as the center of the circle, and the protruding end of the convex plate 211 contacts the protruding end of the back of the lever 21, driving the lever 21 to rotate counterclockwise with the connecting end rotatably sleeved with the transfer box 24 as the center of the circle, and stretching the tension spring 212 between the lever 21 and the support frame 25, so that the pawl end of the lever 21 and the clamping groove of the chuck 22 are released from the clamping state, and the convex plate 211 rotates two circles to drive the transfer roller 28 to rotate 180 degrees clockwise with the axis of the connecting roller 27 as the center of the circle, so that the polytetrafluoroethylene is automatically lowered into the placement groove above the workbench 1.

[0061] like Figure 1 , Figure 8 and Fig. 9 As shown, the clamping and conveying mechanism also includes a conveying trough 32 which is opened on the upper surface of the workbench 1 and is symmetrically distributed. The second servo motor 3 is fixedly installed on the upper left surface of the workbench 1. A conveying screw 33 is rotatably sleeved on the inner wall of the conveying trough 32. Adjacent conveying screws 33 are connected by a belt transmission mechanism. The output shaft of the second servo motor 3 is connected to one end of one of the conveying screws 33 through a coupling. A conveying block 34 is threadedly connected to the outer surface of the conveying screw 33 at equal intervals. The outer surface of the conveying block 34 is slidably sleeved with the inner wall of the conveying trough 32. The clamping cylinder 31 is fixedly installed on the upper surface of the conveying block 34. One end of the piston rod of the clamping cylinder 31 is fixedly connected to a clamping block 37. A buffer pad 35 is fixedly installed on one side surface of the clamping block 37. A pressure sensor 36 is embedded in the center of one side surface of the buffer pad 35.

[0062] The above scheme is adopted: the control unit 8 starts the clamping cylinder 31 of the clamping and transporting mechanism, so that it extends and drives the clamping block 37 and the buffer pad 35 to apply clamping force to both sides of the polytetrafluoroethylene. A pressure sensor 36 is provided to detect the clamping force of the clamping block 37 on the polytetrafluoroethylene to ensure a stable clamping effect. After clamping, the control unit 8 starts the second servo motor 3 to drive a conveying screw 33 to rotate, and at the same time, the belt transmission mechanism rotates synchronously with the other conveying screw 33, driving the clamped polytetrafluoroethylene to move horizontally from left to right along the length direction of the workbench 1, thereby realizing the conveying action of the polytetrafluoroethylene;

[0063] While the clamping and conveying mechanism is conveying the polytetrafluoroethylene, the measuring unit 5 measures the moving distance of the polytetrafluoroethylene in real time and reports the measured value to the The data is sent to the analysis and processing unit 7, and the measured value When the data is equal to the set corresponding threshold value, the analysis and processing unit 7 generates the first analysis result and sends it to the control unit 8, which controls the clamping cylinder 31 at the corresponding position in the clamping and conveying mechanism to fully retract first, and then re-extend it after 10 seconds to clamp and convey the polytetrafluoroethylene again. The data is equal to the set maximum threshold When the control unit 8 controls the second servo motor 3 of the clamping and conveying mechanism to stop.

[0064] like Figure 1 and Figure 8 As shown, the equidistant slicing processing mechanism also includes an arc-shaped guide rail 43 fixedly mounted on the upper surface of the workbench 1, and upper surface mounting frames 44 are fixedly mounted on both side surfaces of the workbench 1. The inner wall of the slide groove of the mounting frame 44 is rotatably sleeved with displacement screws 45 that are symmetrically distributed, and the outer surface of the displacement screws 45 is threadedly connected with displacement blocks 46. Adjacent displacement screws 45 are connected by a belt transmission mechanism. The outer surface of the displacement block 46 is slidably sleeved with the inner wall of the slide groove of the mounting frame 44. The third servo motor 4 is fixedly mounted on the right side surface of the mounting frame 44, and the third servo motor 4 is fixedly connected to one end of one of the displacement screws 45 through a coupling. The displacement cylinder 41 is embedded in the upper surface of one of the displacement blocks 46, and one end of the piston rod of the displacement cylinder 41 is fixedly connected to the front side of the shell of the laser generator 42. The back side of the shell of the laser generator 42 is fixedly connected with a stabilizing slide bar 47, and the outer surface of the stabilizing slide bar 47 is slidably sleeved with the inner wall of another displacement block 46.

[0065] The above scheme is adopted: after the clamping and conveying mechanism transports the polytetrafluoroethylene to the position, the acquisition unit 6, the analysis and processing unit 7 and the control unit 8 are called, and the acquisition unit 6 acquires the image of the end face of the front end of the polytetrafluoroethylene, and sends the acquired image data of the end face of the front end of the polytetrafluoroethylene to the analysis and processing unit 7 for recognition and processing, to determine whether there is unevenness, burrs or deflection, and take corresponding measures according to the recognition results.

[0066] like Figure 1 , Figure 2 , Figure 8 and Fig.12 As shown, the measuring unit 5 includes a first laser ranging sensor 51, a first sensing sheet 52, a second laser ranging sensor 53 and a second sensing sheet 54. The first laser ranging sensor 51 is fixedly mounted on the left inner wall of one of the conveying slots 32, the first sensing sheet 52 is fixedly mounted on the left surface of one of the conveying blocks 34 corresponding to the first laser ranging sensor 51, the second laser ranging sensor 53 is fixedly mounted on the right side of the upper surface of the mounting frame 44, and the second sensing sheet 54 is fixedly mounted on the right surface of one of the displacement blocks 46 corresponding to the second laser ranging sensor 53.

[0067] The installation position of the first laser ranging sensor 51 is marked as the origin When the clamping and conveying mechanism drives the polytetrafluoroethylene to clamp and convey, under the cooperation of the first laser distance sensor 51 and the first sensing sheet 52, the measuring unit 5 obtains the distance between the first sensing sheet 52 and the origin through the first laser distance sensor 51. The measured value Data, i.e., the real-time moving distance of the polytetrafluoroethylene in the conveying trough 32;

[0068] The installation position of the second laser distance measuring sensor 53 is marked as the slicing starting point Under the cooperation of the second laser distance sensor 53 and the second sensing sheet 54, the measuring unit 5 obtains the distance between the current position of the laser generator 42 and the starting point of the slice through the second laser distance sensor 53. The measured value If the laser generator 42 does not move at this time, the current position of the laser generator 42 is the starting point of the slice. .

[0069] like Fig.10 , Fig.11 and Fig.12 As shown, the acquisition unit 6 includes a high-definition camera 61 and an arc cylinder 62. The arc cylinder 62 is fixedly mounted on the inner surface of the arc guide track 43. Both side surfaces of the shell of the high-definition camera 61 are slidably sleeved with the inner walls of the guide grooves on both sides of the arc guide track 43. One end of the piston rod of the arc cylinder 62 is fixedly connected to the back of the shell of the high-definition camera 61. The high-definition camera 61 and the laser generator 42 are both located in the same vertical plane.

[0070] The piston rod of the arc cylinder 62 extends, driving the high-definition camera 61 to move in an arc shape along the guide groove track on the inner side of the arc guide track 43. The acquisition unit 6 acquires images of the head end face of the polytetrafluoroethylene from different angles through the high-definition camera 61, generating image data of the head end face of the polytetrafluoroethylene at different angles.

[0071] like Fig.12 As shown, the analysis and processing unit 7 includes a computing unit 71 and a database 72, wherein:

[0072] On the moving path of the polytetrafluoroethylene clamping and conveying driven by the clamping and conveying mechanism, since the four supporting legs of the transfer box 24 are connected to the upper surface of the workbench 1, and the installation positions of two of the supporting legs constitute an obstacle to the conveying of the polytetrafluoroethylene, forming an obstacle point. Therefore, when the two rightmost relative clamping cylinders 31 of the clamping and conveying mechanism are about to contact the obstacle point for the first time, the calculation unit 71 obtains the distance between the first sensing sheet 52 and the origin through the first laser ranging sensor 51. The measured value Data, marking it as a fixed obstacle point This design is to facilitate subsequent obstacle avoidance and ensure the smooth progress of the transportation process. Multiple multiple thresholds, minimum thresholds and maximum thresholds are set. Specifically, multiple multiple thresholds are set in sequence as , the minimum threshold is set to , the maximum threshold is set to ,In addition, the distance measurements in this application are all in centimeters;

[0073] Measurement values ​​in real time When the data is equal to the corresponding multiple threshold value set, the analysis and processing unit 7 generates a first analysis result and sends it to the control unit 8. The control unit 8 sends a first control instruction to the clamping and conveying mechanism to control the clamping cylinder 31 at the corresponding position in the clamping and conveying mechanism to fully retract first, and then re-extend after 10 seconds to clamp and convey the polytetrafluoroethylene again, so as to avoid the obstacle point. The data is equal to the set maximum threshold When the control unit 8 controls the second servo motor 3 of the clamping and conveying mechanism to stop.

[0074] After the analysis and processing unit 7 obtains the end surface image data of the polytetrafluoroethylene head end at different angles, the database 72 is called to compare and identify the end surface image data of the polytetrafluoroethylene head end at different angles with the end surface image data of the polytetrafluoroethylene head end at different angles pre-stored in the database 72 to determine whether the end surface is uneven, has burrs or deflections. If there are unevenness, burrs or deflections, the control unit 8 sends a second control instruction to the equidistant slicing processing mechanism to control the third servo motor 4 in the equidistant slicing processing mechanism to first drive the laser generator 42 to move horizontally to the left. Centimeters, the specific moving distance is set according to experience or experimental results, and then the displacement cylinder 41 is controlled to drive the laser generator 42 to perform pre-trim cutting on the end surface of the polytetrafluoroethylene head;

[0075] The specific calculation steps for the length of the cut section required for equidistant slicing of polytetrafluoroethylene are as follows:

[0076] A1. If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation formula is: A2. If the end surface of the polytetrafluoroethylene head is not uneven, burred or deflected, the calculation formula is: in, represents the length of the cut segment, represents the total length of the polytetrafluoroethylene to be sliced, Indicates the length of the last slice segment, usually a fixed value. Indicates the number of segments to be cut;

[0077] During the process of the equidistant slicing mechanism driving the laser transmitter to slicing polytetrafluoroethylene equidistantly, when the two rightmost relative clamping cylinders 31 of the clamping and transporting mechanism are located on the same straight line with the laser generator 42 on the vertical plane, there are the following two situations:

[0078] S1: If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation unit 71 obtains the distance between the current position of the laser generator 42 and the starting point of the slice through the second laser ranging sensor 53. The measured value data and label it as , set multiple multiple thresholds, minimum thresholds and maximum thresholds, specifically: set multiple multiple thresholds in sequence as , the minimum threshold is set to , the maximum threshold is set to , in real-time measurement values When the data is equal to the corresponding multiple threshold value, the analysis and processing unit 7 generates a third analysis result and sends it to the control unit 8. The control unit 8 sends a third control instruction to the clamping and conveying mechanism to control the clamping cylinder 31 at the corresponding position in the clamping and conveying mechanism to fully retract first to avoid damage to the clamping cylinder 31. The data is equal to the set maximum threshold When the control unit 8 controls the third servo motor 4 of the equidistant slicing mechanism to stop;

[0079] S2: If the end surface of the polytetrafluoroethylene head is not uneven, burred or deflected, the calculation unit 71 obtains the distance between the current position of the laser generator 42 and the starting point of the slice through the second laser ranging sensor 53. The measured value Data, that is, the current position of the laser generator 42 is the starting point of the slice , which is different from S1, is that multiple multiple thresholds are set in sequence as , in real-time measurement values When the data is equal to the set corresponding multiple threshold, the analysis processing unit 7 generates a fourth analysis result and sends it to the control unit 8. The control unit 8 sends a fourth control instruction to the clamping and conveying mechanism to control the clamping cylinder 31 at the corresponding position in the clamping and conveying mechanism to fully retract first to avoid damage to the clamping cylinder 31. The data is equal to the set maximum threshold When the control unit 8 controls the third servo motor 4 of the equidistant slicing mechanism to stop.

[0080] The working principle and use process of the present invention:

[0081] Step 1, after the polytetrafluoroethylene to be sliced ​​is stacked in the material box 23, it is limited by the limit rod 210 arranged on the surface of the material transfer roller 28. When the polytetrafluoroethylene processing equipment is operated for the first time, the control unit 8 controls the first servo motor 2 of the automatic material discharge mechanism to start and rotate two circles. The first servo motor 2 drives the convex plate 211 to rotate with the axis of the output shaft of the first servo motor 2 as the center of the circle, and the convex end of the convex plate 211 contacts the convex end of the back of the lever 21, driving the lever 21 to rotate counterclockwise with the connection end rotatably sleeved with the material transfer box 24 as the center of the circle, and stretching the tension spring 212 between the lever 21 and the support frame 25, so that the pawl end of the lever 21 and the clamping groove of the chuck 22 are released from the clamping state, and the convex plate 211 rotates two circles to drive the material transfer roller 28 to rotate 180 degrees clockwise with the axis of the connecting roller 27 as the center of the circle, and the polytetrafluoroethylene is automatically placed in the placement groove above the workbench 1;

[0082] Step 2: The control unit 8 starts the clamping cylinder 31 of the clamping and transporting mechanism, so that it extends and drives the clamping block 37 and the buffer pad 35 to apply clamping force to both sides of the polytetrafluoroethylene. A pressure sensor 36 is provided to detect the clamping force of the clamping block 37 on the polytetrafluoroethylene to ensure a stable clamping effect. After clamping, the control unit 8 starts the second servo motor 3 to drive a conveying screw 33 to rotate, and at the same time, the belt transmission mechanism rotates synchronously with the other conveying screw 33, driving the clamped polytetrafluoroethylene to move horizontally from left to right along the length direction of the workbench 1, thereby realizing the conveying action of the polytetrafluoroethylene;

[0083] Step 3: While the clamping and conveying mechanism is conveying the polytetrafluoroethylene, the measuring unit 5 measures the moving distance of the polytetrafluoroethylene in real time and reports the measured value to the measuring unit 5. The data is sent to the analysis and processing unit 7, and the measured value When the data is equal to the set corresponding threshold value, the analysis and processing unit 7 generates the first analysis result and sends it to the control unit 8, which controls the clamping cylinder 31 at the corresponding position in the clamping and conveying mechanism to fully retract first, and then re-extend it after 10 seconds to clamp and convey the polytetrafluoroethylene again. The data is equal to the set maximum threshold When the control unit 8 controls the second servo motor 3 of the clamping and transporting mechanism to stop;

[0084] Step 4: After the clamping and transporting mechanism has transported the polytetrafluoroethylene to its place, the acquisition unit 6, the analysis and processing unit 7 and the control unit 8 are called, and the acquisition unit 6 acquires an image of the end face of the front end of the polytetrafluoroethylene, and sends the acquired image data of the end face of the front end of the polytetrafluoroethylene to the analysis and processing unit 7 for recognition and processing to determine whether there is unevenness, burrs or deflection, and take corresponding measures based on the recognition results.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polytetrafluoroethylene cutting and processing device based on visual recognition, comprising a workbench (1), characterized in that: An automatic unloading mechanism is arranged on the upper surface of the workbench (1), the automatic unloading mechanism comprising a first servo motor (2), a lever (21), a chuck (22) and an unloading box (23), the automatic unloading mechanism further comprising a transfer box (24) fixedly mounted on the upper surface of the workbench (1), the feed port of the transfer box (24) being connected to the discharge port of the unloading box (23) via bolts, the discharge port of the transfer box (24) being located directly above the placement slot of the workbench (1), the first servo motor (2) cooperating with the lever (21) to drive the chuck (22) to rotate intermittently, thereby realizing an automatic unloading action for the polytetrafluoroethylene placed in the unloading box (23); A clamping and transporting mechanism is provided between the top of the workbench (1) and the automatic unloading mechanism, the clamping and transporting mechanism comprising a second servo motor (3) and a clamping cylinder (31). After the automatic unloading mechanism automatically lowers the polytetrafluoroethylene placed in the unloading box (23) to the placement groove above the workbench (1), the clamping cylinder (31) first clamps the two sides of the polytetrafluoroethylene, and then drives the clamped polytetrafluoroethylene to move horizontally from left to right along the length direction of the workbench (1) through the second servo motor (3), thereby realizing the conveying action of the polytetrafluoroethylene; The clamping and conveying mechanism also includes a conveying trough (32) opened on the upper surface of the workbench (1) and symmetrically distributed, the second servo motor (3) is fixedly mounted on the left upper surface of the workbench (1), a conveying screw (33) is rotatably sleeved on the inner wall of the conveying trough (32), adjacent conveying screws (33) are connected to each other through a belt transmission mechanism, the output shaft of the second servo motor (3) is connected to one end of one of the conveying screws (33) through a coupling, the outer surface of the conveying screw (33) is threadedly connected to a conveying block (34) at equal intervals, the outer surface of the conveying block (34) is slidably sleeved with the inner wall of the conveying trough (32), the clamping cylinder (31) is fixedly mounted on the upper surface of the conveying block (34), one end of the piston rod of the clamping cylinder (31) is fixedly connected to the clamping block (37), a buffer pad (35) is fixedly mounted on one side surface of the clamping block (37), and a pressure sensor (36) is embedded and mounted at the center of one side surface of the buffer pad (35); An equidistant slicing mechanism is arranged above the workbench (1) near the automatic unloading mechanism and the right side of the clamping and transporting mechanism. The equidistant slicing mechanism comprises a third servo motor (4), a displacement cylinder (41) and a laser generator (42). After the clamping and transporting mechanism delivers the polytetrafluoroethylene to the right position, the third servo motor (4) drives the displacement cylinder (41) and the laser generator (42) to move horizontally along the length direction of the workbench (1), and then drives the laser generator (42) to move horizontally along the width direction of the workbench (1) through the displacement cylinder (41), thereby realizing automatic equidistant slicing of the polytetrafluoroethylene; The equidistant slicing processing mechanism further comprises an arc-shaped guide rail (43) fixedly mounted on the upper surface of the workbench (1); upper surface mounting frames (44) are fixedly mounted on both side surfaces of the workbench (1); displacement screw rods (45) rotatably sleeved on the inner wall of the slide groove of the mounting frame (44) and symmetrically distributed; displacement blocks (46) are threadedly connected on the outer surface of the displacement screw rods (45); adjacent displacement screw rods (45) are transmission-connected via a belt transmission mechanism; the outer surface of the displacement block (46) is slidably sleeved on the inner wall of the slide groove of the mounting frame (44); and the third servo motor The machine (4) is fixedly mounted on the right side surface of the mounting frame (44); the third servo motor (4) is fixedly connected to one end of one of the displacement screws (45) through a coupling; the displacement cylinder (41) is embedded and mounted on the upper surface of one of the displacement blocks (46); one end of the piston rod of the displacement cylinder (41) is fixedly connected to the front side of the housing of the laser generator (42); a stabilizing slide bar (47) is fixedly connected to the back side of the housing of the laser generator (42); and the outer surface of the stabilizing slide bar (47) is slidably sleeved with the inner wall of another displacement block (46); It also includes a measuring unit (5), a collection unit (6), an analysis and processing unit (7) and a control unit (8), wherein: While the clamping and conveying mechanism is conveying the polytetrafluoroethylene, the measuring unit (5) measures the moving distance of the polytetrafluoroethylene in real time and reports the measured value. The data is sent to the analysis and processing unit (7). When the data is equal to the set corresponding threshold value, the analysis and processing unit (7) generates a first analysis result and sends it to the control unit (8) to control the clamping cylinders (31) at different positions in the clamping and transporting mechanism to change their working states; After the clamping and conveying mechanism has transported the polytetrafluoroethylene to the desired position, the acquisition unit (6) acquires an image of the end surface of the polytetrafluoroethylene head end, and sends the acquired image data of the end surface of the polytetrafluoroethylene head end to the analysis and processing unit (7) for identification and processing to determine whether there is unevenness, burrs or deflection. If there is unevenness, burrs or deflection, the analysis and processing unit (7) generates a second analysis result and sends it to the control unit (8) to control the equidistant slicing mechanism to perform a pre-trim cutting action on the end surface of the polytetrafluoroethylene head end; After the pre-trim of the polytetrafluoroethylene head end is completed, the measuring unit (5) measures the moving distance of the laser generator (42) in real time and reports the measured value to the The data is sent to the analysis and processing unit (7) to calculate the length of the cut section required for equidistant slicing of the polytetrafluoroethylene. The analysis and processing unit (7) generates a third analysis result and sends it to the control unit (8) to control the equidistant slicing processing mechanism to perform equidistant slicing of the polytetrafluoroethylene, and at the same time change the working state of the clamping cylinders (31) at different positions in the clamping and transporting mechanism; If there is no unevenness, burr or deflection, the analysis and processing unit (7) directly calculates the length of the cut section required for equidistant slicing of the polytetrafluoroethylene, and the analysis and processing unit (7) generates a fourth analysis result and sends it to the control unit (8) to control the equidistant slicing processing mechanism to directly perform an equidistant slicing action on the polytetrafluoroethylene, and at the same time change the working state of the clamping cylinders (31) at different positions in the clamping and transporting mechanism. After the equidistant slicing of the polytetrafluoroethylene is completed, the control unit (8) first controls the clamping and transporting mechanism and the equidistant slicing processing mechanism to return to the initial state, and then controls the automatic unloading mechanism to perform an automatic unloading action on the polytetrafluoroethylene, thereby achieving a continuous processing action on the polytetrafluoroethylene; The measuring unit (5) comprises a first laser distance measuring sensor (51), a first sensing sheet (52), a second laser distance measuring sensor (53) and a second sensing sheet (54), wherein the first laser distance measuring sensor (51) is fixedly mounted on the left inner wall of one of the conveying slots (32), the first sensing sheet (52) is fixedly mounted on the left surface of one of the conveying blocks (34) corresponding to the first laser distance measuring sensor (51), the second laser distance measuring sensor (53) is fixedly mounted on the right side of the upper surface of the mounting frame (44), and the second sensing sheet (54) is fixedly mounted on the right surface of one of the displacement blocks (46) corresponding to the second laser distance measuring sensor (53), wherein: The installation position of the first laser distance measuring sensor (51) is marked as the origin When the clamping and conveying mechanism drives the polytetrafluoroethylene to be clamped and conveyed, the first laser distance measuring sensor (51) cooperates with the first sensing sheet (52), and the measuring unit (5) obtains the distance between the first sensing sheet (52) and the origin through the first laser distance measuring sensor (51). The measured value data; The installation position of the second laser distance measuring sensor (53) is marked as the slicing starting point In cooperation with the second laser distance measuring sensor (53) and the second sensing sheet (54), the measuring unit (5) obtains the distance between the current position of the laser generator (42) and the starting point of the slice through the second laser distance measuring sensor (53). The measured value If the laser generator (42) does not move at this time, the current position of the laser generator (42) is the starting point of the slice. ; The acquisition unit (6) comprises a high-definition camera (61) and an arc-shaped cylinder (62); the arc-shaped cylinder (62) is fixedly mounted on the inner surface of the arc-shaped guide track (43); both side surfaces of the shell of the high-definition camera (61) are slidably sleeved with the inner walls of the guide grooves on both sides of the arc-shaped guide track (43); one end of the piston rod of the arc-shaped cylinder (62) is fixedly connected to the back surface of the shell of the high-definition camera (61); the high-definition camera (61) and the laser generator (42) are both located in the same vertical plane, wherein: The piston rod of the arc cylinder (62) extends to drive the high-definition camera (61) to move in an arc shape along the guide groove track on the inner side of the arc guide track (43), and the acquisition unit (6) acquires images of the end surface of the first end of the polytetrafluoroethylene from different angles through the high-definition camera (61), thereby generating image data of the end surface of the first end of the polytetrafluoroethylene at different angles; The analysis and processing unit (7) comprises a computing unit (71) and a database (72), wherein: On the moving path of the polytetrafluoroethylene clamping and conveying driven by the clamping and conveying mechanism, since the four supporting legs of the transfer box (24) are connected to the upper surface of the workbench (1), and the installation positions of two of the supporting legs constitute an obstacle to the conveying of the polytetrafluoroethylene, forming an obstacle point. Therefore, when the two rightmost relative clamping cylinders (31) of the clamping and conveying mechanism are about to contact the obstacle point for the first time, the calculation unit (71) obtains the distance between the first sensing sheet (52) and the origin through the first laser distance measuring sensor (51). The measured value Data, marking it as a fixed obstacle point , set multiple multiple thresholds, minimum thresholds and maximum thresholds, specifically: set multiple multiple thresholds in sequence as , the minimum threshold is set to , the maximum threshold is set to ; Measurement values ​​in real time When the data is equal to the set corresponding multiple threshold, the analysis and processing unit (7) generates a first analysis result and sends it to the control unit (8). The control unit (8) sends a first control instruction to the clamping and conveying mechanism to control the clamping cylinder (31) at the corresponding position in the clamping and conveying mechanism to fully retract first, and then re-extend after 10 seconds to clamp and convey the polytetrafluoroethylene again. The data is equal to the set maximum threshold When the control unit (8) controls the second servo motor (3) of the clamping and transporting mechanism to stop; After the analysis and processing unit (7) obtains the polytetrafluoroethylene head end surface image data at different angles, the database (72) is called to compare and identify the polytetrafluoroethylene head end surface image data at different angles with the polytetrafluoroethylene head end surface image data at different angles pre-stored in the database (72) to determine whether the end surface has unevenness, burrs or deflection. If unevenness, burrs or deflection exists, a second control instruction is sent to the equidistant slicing processing mechanism through the control unit (8) to control the third servo motor (4) in the equidistant slicing processing mechanism to first drive the laser generator (42) to move horizontally to the left. Centimeters, and then control the displacement cylinder (41) to drive the laser generator (42) to perform a pre-trim cutting action on the end surface of the polytetrafluoroethylene head; The specific calculation steps for the length of the cut section required for equidistant slicing of polytetrafluoroethylene are as follows: A1. If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation formula is: A2. If the end surface of the polytetrafluoroethylene head is not uneven, burred or deflected, the calculation formula is: in, represents the length of the cut segment, represents the total length of the polytetrafluoroethylene to be sliced, Indicates the length of the last cut segment. Indicates the number of segments to be cut; During the process of the equidistant slicing processing mechanism driving the laser transmitter to equidistantly slice polytetrafluoroethylene, when the two rightmost relative clamping cylinders (31) of the clamping and transporting mechanism are located on the same straight line with the laser generator (42) on the vertical plane, the following two situations are classified: S1. If the end surface of the polytetrafluoroethylene head is uneven, has burrs or is skewed, the calculation unit (71) obtains the distance between the current position of the laser generator (42) and the starting point of the slice through the second laser distance measuring sensor (53). The measured value data and label it as , set multiple multiple thresholds, minimum thresholds and maximum thresholds, specifically: set multiple multiple thresholds in sequence as , the minimum threshold is set to , the maximum threshold is set to , in real-time measurement values When the data is equal to the set corresponding multiple threshold, the analysis processing unit (7) generates a third analysis result and sends it to the control unit (8). The control unit (8) sends a third control instruction to the clamping and conveying mechanism to control the clamping cylinder (31) at the corresponding position in the clamping and conveying mechanism to fully retract first, and then the real-time measurement value is The data is equal to the set maximum threshold When the third servo motor (4) of the equidistant slicing mechanism is controlled to stop by the control unit (8); S2. If the end surface of the polytetrafluoroethylene head is not uneven, has burrs or is deflected, the calculation unit (71) obtains the distance between the current position of the laser generator (42) and the starting point of the slice through the second laser distance measuring sensor (53). The measured value Data, that is, the current position of the laser generator (42) is the starting point of the slice , which is different from S1, is that multiple multiple thresholds are set in sequence as , in real-time measurement values When the data is equal to the set corresponding multiple threshold, the analysis processing unit (7) generates a fourth analysis result and sends it to the control unit (8). The control unit (8) sends a fourth control instruction to the clamping and conveying mechanism to control the clamping cylinder (31) at the corresponding position in the clamping and conveying mechanism to fully retract first, and then the real-time measurement value is The data is equal to the set maximum threshold When the third servo motor (4) of the equidistant slicing mechanism is stopped, the control unit (8) controls the third servo motor (4) of the equidistant slicing mechanism to stop.

2. The polytetrafluoroethylene cutting and processing equipment based on visual recognition according to claim 1 is characterized in that: A support frame (25) is fixedly mounted on the right side surface of the transfer box (24), a closing plate (26) is fixedly mounted on the left side surface of the transfer box (24) by means of bolts, a connecting roller (27) is rotatably sleeved on the right side surface of the transfer box (24), one end of the connecting roller (27) extends into the interior of the transfer box (24) and is detachably connected to the left side surface of the closing plate (26), a transfer roller (28) is slidably inserted on the outer surface of the connecting roller (27) located in the transfer box (24), a plurality of groups of adjustment grooves (29) distributed in a circular array are provided on the outer surface of the transfer roller (28), and the inner walls of four of the adjustment grooves (29) in each group are threadedly connected to a limiting rod (210).

3. The polytetrafluoroethylene cutting and processing equipment based on visual recognition according to claim 2 is characterized in that: The chuck (22) is fixedly sleeved on the outer surface of the connecting roller (27) located on the right side of the transfer box (24); the lever (21) is rotatably sleeved on the right side surface of the transfer box (24); the first servo motor (2) is fixedly sleeved on the inner wall of the support frame (25); the output shaft of the first servo motor (2) is fixedly sleeved with a convex disc (211) via a coupling; a tension spring (212) is sleeved between the lever (21) and the support frame (25); the arc-shaped outer surface of the convex disc (211) contacts the rear protruding end of the lever (21); and the pawl end of the lever (21) is clamped with the inner wall of the clamping groove of the chuck (22).

Images