A net cloth sponge automatic loading shaping and water mark sewing and locking edge integrated machine

Abstract

The application discloses a net cloth sponge mop automatic feeding shaping and water mark sewing and locking edge integrated machine, which comprises a cabinet, a ring conveyor unit, a pressing die unit, and an upper feeding unit, a material port shaping unit, a water mark belt forming and feeding belt unit, a pressing port unit, a water mark belt plugging unit, a sewing unit, a demolding unit, a belt removing unit and a product discharging unit which are respectively arranged on the base plate of the cabinet and are arranged on the side of the ring conveying belt, and the net cloth sponge mop feeding, the material port shaping, the water mark belt folding and feeding, the port pressing, the sewing and the demolding and discharging processes are sequentially completed, the degree of automation is high, and thus the locking edge efficiency of the net cloth sponge mop is effectively improved, and the production cost is saved.

Description

Technical Field

[0001] This invention relates to an integrated automatic feeding, shaping, and watermark sewing and overlocking machine for mesh fabric sponges, and relates to the field of mesh fabric sponge processing technology. Background Technology

[0002] Previously, the sewing process of the mesh bag opening and water label tape of the mesh sponge was done manually, which was time-consuming, labor-intensive, costly, and inefficient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an integrated machine for automatic feeding, shaping and watermark sewing of a mesh sponge eraser that effectively improves the edge-locking efficiency of the mesh sponge eraser.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: An integrated automatic feeding, shaping, and water-marker sewing and overlocking machine for mesh sponge wipes includes a cabinet, a circular conveyor unit, a pressing mold unit, and feeding units, a material inlet shaping unit, a water-marker strip forming and feeding unit, a pressing unit, a water-marker strip plugging unit, a sewing unit, a demolding unit, a strip release unit, and a product discharge unit, all mounted on the upper plate of the cabinet and positioned on the side of the circular conveyor belt. The upper plate of the cabinet has a conveying opening for installing and fixing the ring conveyor unit for operation; The pressing mold unit consists of multiple units, which are fixed at intervals on the conveyor belt of the circular conveyor unit. When the pressing mold unit is conveyed by the conveyor belt, it passes in sequence through the feeding and shaping station of the feeding unit and the material outlet shaping unit, the feeding and pressing station of the water mark belt forming and feeding unit and the pressing station, the sealing station of the water mark belt sealing unit, the sewing station of the sewing unit, the demolding station of the demolding unit, the sealing station of the stripping unit, and the discharge station of the product discharge unit. The feeding unit is located on the right side of the ring conveyor unit and is used to sequentially transport the mesh sponge erasers to be edge-locked to the pressing mold unit on the ring conveyor of the feeding and shaping station. The material outlet shaping unit is located on the left side of the circular conveyor unit and is arranged opposite to the feeding unit. It is used to flatten the mesh bag opening of the mesh cloth sponge on the pressing mold at the feeding shaping station. The water mark strip forming and feeding unit is located behind the material outlet shaping unit and is used to fold and shape the continuous long strip of water mark strip and transport it to the mesh bag opening of the mesh sponge on the pressing mold of the feeding and pressing station. The pressing unit is located behind the feeding unit and is arranged opposite to the water mark tape forming and feeding unit. It is used to press the mesh bag opening of the mesh cloth sponge on the pressing mold unit of the feeding pressing station, and then press and fix the water mark tape inside the mesh bag opening. The water mark tape plugging unit is located behind the water mark tape forming and feeding unit and is used to place part of the water mark tape pressed on the pressing mold of the plugging station above the opening of the mesh cloth sponge wiping cloth bag. The sewing unit is used to sew and connect the water mark tape on the pressing mold unit at the sewing station to the mesh bag opening of the mesh sponge; The demolding unit, the stripping unit, and the product discharge unit are fixed sequentially to the rear side of the sewing machine and are used to remove the sewn mesh sponge from the pressing mold unit, strip the strip, and discharge the product, respectively.

[0005] Preferably, the annular conveyor unit includes an annular guide rail, sliders, a servo motor base, a servo motor, a planetary reducer, a ball chain, a drive sprocket, a driven sprocket, and an oil-impregnated bushing. The annular guide rail is fixed inside the conveying opening and connected to the cabinet base plate on the side of the conveying opening via a side connecting bracket. The drive sprocket and driven sprocket are respectively fixed to the inner sides of both ends of the annular guide rail. The ball chain loops around the drive sprocket and driven sprocket. Multiple sliders are configured and slidably connected to the outer track of the annular guide rail at intervals and connected to the ball chain via the oil-impregnated bushing. Each of the multiple sliders is equipped with a pressing mold unit. The servo motor is directly connected to the planetary reducer and... The servo motor mount is fixed to the lower side of the upper base plate of the cabinet, and the drive shaft end of the planetary reducer is connected to the axle of the drive sprocket. The pressing mold unit includes a material tray, a pressing locking seat, and a pressing locking mechanism. The pressing locking seat is configured as a portal plate structure. The rear end of the material tray is fixed to the lower side of the pressing locking seat, and the front end extends horizontally out of the pressing locking seat with a strip-shaped opening. The lower part of the material tray is fixedly connected to a slider at a corresponding position. The pressing locking mechanism includes a linear bearing, a guide rod, a positioning sleeve, an upper pressure plate, a rubber locking pad, a pressure rod, a guide cylinder, a spring, and a locking pin. The transverse base plate of the pressing locking seat has an opening for the guide cylinder to be fixedly installed. The lower end of the pressure rod extends into the guide cylinder. The pressure rod extends freely up and down within the cylinder. A pressure head is located at the top of the pressure rod. A spring ring is fitted onto the outer wall of the guide cylinder between the pressure head and the material locking seat. The inner wall of the guide cylinder has a guide groove arranged vertically. A stepped pin hole is radially located on the middle section of the pressure rod. A locking pin passes through the pin hole, with one end extending out of the rod and threadedly connected to an adjusting bolt. The adjusting bolt is placed in the guide groove and slides freely up and down. The other end is a movable end that passes through a small-diameter through-hole in the pin hole and extends out of the outer wall of the rod. A locking hole is located on the inner wall of the guide cylinder, opposite to the guide groove. When locked, the movable end of the locking pin corresponds to the position of the locking hole. A ring is fitted into the large-diameter through-hole of the pin hole. An adjusting spring is attached to the outside of the pin. The adjusting spring is located between the adjusting bolt and the stepped seat of the pin hole. The lower end of the pressure rod is vertically connected to the center plate of the upper pressure plate. Two guide rods are installed diagonally on the pressure locking seat. The lower end of the guide rod is vertically connected to the corner of the upper pressure plate, and the upper end passes through the corner of the horizontal plate of the pressure locking seat and moves freely up and down relative to it. The guide rod and the horizontal plate are slidably connected by a positioning sleeve linear bearing. The upper pressure plate is placed above the material tray and corresponds vertically to the material tray. Its front end has an upper opening corresponding to the strip opening at the front end of the material tray. A notch is opened on the outer side of the middle of the upper opening. The rubber locking pad is fixed to the front end of the upper pressure plate and is located on the side of the upper opening.

[0006] Preferably, the feeding unit includes a pneumatic suction cup, a tray, a rotating mechanism linkage, a pneumatic pushing mechanism, a lifting cylinder, a lifting cylinder seat, a linear guide rail, a rodless cylinder seat, a rodless cylinder, a rotary bearing seat, a rotary bearing, and a rotating suction cup fixing rod. The lifting cylinder seat is vertically mounted and fixed to the upper plate of the cabinet on the side of the annular guide rail. The linear guide rail consists of two parallel vertical rails fixed to one side of the lifting cylinder seat. The lifting cylinder is vertically fixed to the upper end of the lifting cylinder seat with its piston rod end facing downwards and connected to the upper edge of the middle of the rodless cylinder seat's base plate. The rodless cylinder seat is horizontally mounted vertically and slidably connected to the linear guide rail via two sliding seats. The rodless cylinder is horizontally fixed to one side of the rodless cylinder seat's plate. An L-shaped support is connected to the sliding seat of the rodless cylinder. The pneumatic suction cup is fixedly connected to the L-shaped support via a rotating suction cup fixing rod and can rotate freely relative to the L-shaped support. The rotating mechanism linkage includes two movable linkages that are movably connected together. One end of the movable connecting rod is connected to the rod body of the rotating suction cup fixing rod, and the other end is connected to the rotating bearing seat. The rotating bearing seat is fixed on the rodless cylinder seat at the tail of the rodless cylinder and is movably connected to the end of the movable connecting rod through the rotating bearing. The tray is placed on the upper base plate of the cabinet below the pneumatic suction cup. When the pressing mold unit on the slider on the annular guide rail moves to the material feeding and shaping stage, the tray is exactly on the side of the material tray on the pressing mold unit and the two are at the same horizontal position. The pneumatic pushing mechanism includes a pushing cylinder, a pushing cylinder seat, a pushing guide rail, and a pushing rod. The pushing cylinder is fixed on the upper base plate of the cabinet through the pushing cylinder seat and is placed on the side of the tray. The pushing guide rail is fixed on the pushing cylinder seat. One end of the pushing rod is slidably connected to the pushing guide rail through a slide seat, and the other end is connected to a pushing plate and placed inside the tray. The pushing cylinder drives the pushing rod and the pushing plate to move linearly inside the tray and push the sponge inside the tray to the material tray of the pressing mold unit on the side.

[0007] Preferably, the material outlet shaping unit includes an upper shaping cylinder, an upper shaping pressure plate, a lower shaping cylinder, a lower shaping pressure plate, a material outlet shaping mold, upper and lower material outlet shaping cylinder seats, and a side-push device. The side-push device includes a side-push seat, a side-push plate, a side-push fixing plate, and a side-push cylinder. The side-push cylinder is fixed to the upper base plate of the cabinet via the side-push seat. The piston rod end of the side-push cylinder is connected to the side-push plate and the side-push fixing plate. The side-push fixing plate is vertically connected and fixed to the upper and lower material outlet shaping cylinder seats. The upper and lower material outlet shaping cylinder seats are vertically arranged, and the upper and lower shaping cylinders are fixed vertically opposite each other. At the upper and lower ends of the upper and lower material outlet shaping cylinder seats, the upper shaping plate and the lower shaping plate are respectively connected to the piston rod ends of the upper and lower shaping cylinders and are arranged opposite to each other. The material outlet shaping mold is fixed in the middle position of the upper and lower material outlet shaping cylinder seats and is located between the upper and lower shaping plates. When the pressing mold unit on the slider on the annular guide rail moves to the material feeding shaping station to start the shaping process, the front end of the material tray on the pressing mold unit is located on the side of the material outlet shaping mold, which facilitates the shaping process of the mesh bag opening of the mesh sponge on the material tray.

[0008] Preferably, the water level indicator tape forming and feeding unit includes a water level indicator tape unwinding unit, a water level indicator tape pulling unit, a water level indicator tape folding unit, a water level indicator tape cutting unit, and a water level indicator tape feeding unit. The above units are respectively used to unwind and pull the water level indicator tape roll, fold and cut it, and finally send the folded and cut water level indicator tape to the mesh bag opening of the mesh cloth sponge on the material tray of the pressing mold unit. The water level gauge unwinding unit includes a water level gauge roll clamping plate and a pressing mechanism. The water level gauge roll clamping plate is fixed to the upper plate of the cabinet by a support frame and is used to hold the water level gauge roll. The pressing mechanism includes a pressing seat and a pressing spring. The pressing seat is fixed to the rear side of the water level gauge roll clamping plate and has a through hole in the middle for the water level gauge roll to pass through. The pressing spring is placed at the top of the inner hole of the through hole and makes elastic contact with the water level gauge roll inside the through hole.

[0009] Preferably, the water level indicator tape pulling unit includes a servo electric cylinder, a gripper, a pneumatic gripper cylinder, a gripper cylinder seat, and a gripper slide rail. The gripper slide rail is arranged linearly along the unwinding direction of the water level indicator tape, with one end placed on one side of the pressure seat and the other end placed on one side of the annular guide rail. The gripper cylinder seat is slidably connected to the gripper slide rail. The servo electric cylinder is placed on one side of the gripper slide rail, with its piston rod extending and retracting in a direction parallel to the gripper slide rail and its piston rod end connected to the gripper cylinder seat. The pneumatic gripper cylinder is fixed on the gripper cylinder seat, and the gripper is mounted on the pneumatic gripper cylinder and driven by it to perform up-and-down gripping and releasing actions.

[0010] Preferably, the water level marker tape cutting unit includes pneumatic scissors and a push cylinder. The push cylinder is fixed to the side of the servo electric cylinder, and its pushing direction is perpendicular to the conveying direction of the water level marker tape. A slide block is provided on the upper part of the push cylinder, and the cylinder body has a groove that mates with the slide block. The front end of the slide block is connected to the end of the piston rod of the push cylinder. The push cylinder drives the slide block to slide back and forth on its upper part. The pneumatic scissors are fixed to one side of the slide block, with the scissor blade facing the direction of the water level marker tape. Driven by the push cylinder, the scissors push the slide block to the water level marker tape position and cut it. The water level marker tape folding unit includes a rotary servo motor, a clamping cylinder, a clamping claw, and a folding support. The rod, the rotary servo motor is fixed on the other side of the slide, the clamping cylinder is connected to its rotating shaft end, the clamping cylinder is set as a parallel pneumatic gripper cylinder, the gripper is two Z-shaped clamping plates, one end of the two Z-shaped clamping plates is connected to the two gripping fingers of the parallel pneumatic gripper cylinder, and then the gripping fingers drive the up and down opening and closing movement, one end of the folding support rod is fixed on the plate body of one of the Z-shaped clamping plates and close to the edge of the clamping mouth of the two Z-shaped clamping plates, and the other end is set towards the water level belt, and the folding support rod and the rotating shaft of the rotary servo motor are on the same axis; The water-marking tape feeding unit includes a servo linear module, a telescopic cylinder seat, a telescopic cylinder, and a folding tape clamping cylinder. The servo linear module is located on the other side of the gripper slide rail, and its linear sliding direction is consistent with the setting direction of the gripper slide rail. The telescopic cylinder seat is fixed on the slide of the servo linear module, and the telescopic cylinder is fixed on the telescopic cylinder seat. The folding tape clamping cylinder is fixedly connected to the piston rod end of the telescopic cylinder, and its telescopic direction is perpendicular to the conveying direction of the water-marking tape. The head of the folding tape clamping cylinder has a feeding gripper for clamping the folded water-marking tape. When the pressing mold unit is in the feeding pressing position, the feeding gripper of the folding tape clamping cylinder clamps the folded water-marking tape to the mesh bag opening of the mesh sponge on the material tray on the side of the pressing mold unit.

[0011] Preferably, the pressing unit includes: a pressing cylinder, a pressing cylinder seat, a pressing head, a material outlet positioning cylinder, a material outlet positioning cylinder seat, and a material outlet positioning pin. The pressing cylinder seat is fixed on the upper base plate of the cabinet on one side of the annular guide rail and is arranged opposite to the water level belt feeding unit. The cylinder body of the pressing cylinder is vertically fixed on the horizontal plate of the pressing cylinder seat, and the piston rod passes through the horizontal plate and is set vertically downward. The pressing head is fixedly connected to the piston rod end of the pressing cylinder. When the pressing mold unit on the annular guide rail is in the feeding pressing position, the pressing head is located directly above the pressing rod on the pressing mold unit. The material outlet positioning cylinder seat is fixed on the horizontal plate of the pressing cylinder seat, and the material outlet positioning cylinder is vertically fixed on the material outlet positioning cylinder seat. Its piston rod is vertically downward and connected to the material outlet positioning pin. The material outlet positioning pin is vertically downward and corresponds to the strip opening on the front side of the material tray of the pressing mold unit below.

[0012] Preferably, the water level gauge tape plugging unit includes: a plugging cylinder seat, a plugging cylinder, a pressing mold, a plugging cylinder, and a plugging strip. The plugging cylinder seat is L-shaped and fixed to the upper base plate of the cabinet on one side of the annular guide rail. The plugging cylinder is fixed to the front side of the horizontal plate of the plugging cylinder seat. The pressing mold is connected to the lower end of the piston rod of the plugging cylinder and corresponds to the upper pressure plate of the pressing mold unit located at the plugging station. The plugging cylinder is fixed below the horizontal plate of the plugging cylinder seat and its piston rod end is horizontally telescopic. The plugging strip is connected to the end of the piston rod of the plugging cylinder and is arranged in a front-to-back opposite manner to the folded water level gauge tape and rubber locking pad on the pressing mold at the plugging station.

[0013] Preferably, the sewing unit includes a sewing machine moving platform and a sewing machine. The upper plate of the cabinet has a mounting hole for mounting the sewing machine. The sewing machine moving platform is fixed below the mounting hole. The base of the sewing machine is fixed on the sewing machine moving platform and is driven by it to move freely above the mounting hole. The sewing machine moving platform is set as an XY axis moving platform. The sewing needle of the sewing machine corresponds vertically to the mesh fabric sponge wiping mesh bag opening position on the material tray of the pressing die unit at the sewing station.

[0014] Preferably, the demolding unit includes a demolding cylinder, a demolding cylinder seat, and a demolding ejector rod. The demolding cylinder seat is fixed to one side of the annular guide rail, and the demolding cylinder is fixed on the demolding cylinder seat with its piston rod end horizontally facing the pressing mold unit in the demolding position. The demolding ejector rod is fixed to the piston rod end of the demolding cylinder. When the pressing mold unit is in the demolding position, the demolding ejector rod of the demolding cylinder is opposite to the locking hole of the pressing locking mechanism on the pressing mold unit and is on the same axis. The demolding ejector rod extends out and passes through the locking hole, thereby pushing the shaft end of the locking pin in the locking hole out of the locking hole. The pressure rod rebounds upward under the action of the spring, thereby driving the upper pressure plate upward, thereby realizing the unlocking and demolding process of the mesh sponge on the material tray.

[0015] Preferably, the stripping unit includes a stripping cylinder seat, a stripping cylinder, and a stripping needle. The stripping cylinder seat is fixed to one side of the annular guide rail. The stripping cylinder is fixed on the stripping cylinder seat with its piston rod end facing downwards. The stripping needle is fixed to the piston rod end of the stripping cylinder via a connecting plate. The stripping needle is facing downwards, and its lower end corresponds vertically to the mesh sponge on the material tray of the pressing mold unit at the stripping station. The product discharge unit includes a discharge cylinder, a discharge cylinder seat, and a discharge conveyor belt. The discharge cylinder seat is fixed to one side of the tail of the annular guide rail. The discharge cylinder is fixedly connected to the discharge cylinder seat, and its piston rod end is horizontally positioned and facing the pressing mold unit at the discharge station. The discharge conveyor belt is located on the other side of the annular guide rail, and its inlet is opposite to the discharge cylinder.

[0016] Compared with the prior art, the advantages of the present invention are: the automatic overlocking machine effectively improves the overlocking efficiency of watermark tape and mesh sponge, has a high degree of automation, saves a lot of labor costs, improves production efficiency, and reduces production costs, thus having high practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the annular conveyor unit of the present invention; Figure 3 This is a perspective view of the pressing die unit of the present invention; Figure 4 This is a side view of the pressing die unit of the present invention; Figure 5 yes Figure 4 A sectional view along the BB direction; Figure 6 This is a perspective view of the feeding unit of the present invention. Figure 7 This is a perspective view of the feed inlet shaping unit of the present invention; Figure 8 This is a perspective view of the water level tape forming and feeding unit of the present invention installed on the cabinet; Figure 9 This is a perspective view of the pressing mechanism of the present invention; Figure 10 This is a perspective view of the pressing cylinder of the present invention during installation; Figure 11 This is a perspective view of the installation of the water level gauge tape cutting unit and the water level gauge tape folding unit of the present invention; Figure 12 This is a perspective view of the installation of the water level indicator tape pulling unit and the water level indicator tape feeding unit of the present invention; Figure 13 This is a perspective view of the crimping unit of the present invention; Figure 14 This is a perspective view of the water level gauge and plug unit of the present invention; Figure 15 This is a perspective view of the sewing unit of the present invention; Figure 16 This is a perspective view of the demolding unit and the strip removal unit of the present invention during installation; Figure 17 This is a perspective view of the product discharge unit of the present invention during installation. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. like Figure 1 The machine shown is an integrated automatic feeding, shaping, and water-marker sewing and overlocking machine for mesh sponge erasers. It includes a cabinet 1, a circular conveyor unit 100, a pressing mold unit 200, and feeding units 300, 400, 500, pressing unit 600, 700, sewing unit 800, demolding unit 900, demolding unit 1000, and product discharge unit 1100, all mounted on the upper plate of the cabinet and positioned on the side of the circular conveyor belt. The upper plate of the cabinet has a conveyor opening 2 for mounting and securing the circular conveyor unit. Multiple pressing mold units 200 are fixed at intervals on the conveyor belt of the circular conveyor unit 100. Yuan 200 is conveyed by the conveyor belt of the circular conveyor unit 100 and sequentially passes through the feeding and shaping stations of the feeding unit 300 and the material outlet shaping unit 400, the feeding and pressing stations of the water mark belt forming and feeding unit 500 and the pressing unit 600, the pressing station of the water mark belt plugging unit 700, the sewing station of the sewing unit 800, the demolding station of the demolding unit 900, the unloading station of the unloading unit 1000, and the unloading station of the product discharge unit 1100. The circular conveyor unit, feeding unit, material outlet shaping unit, water mark belt forming and feeding unit, pressing unit, water mark belt plugging unit, sewing unit, demolding unit, unloading unit, and product discharge unit are all controlled and operated by a comprehensive control system according to a built-in preset program.

[0019] In this embodiment, to improve the stability of the circular conveying process, such as Figure 2As shown, the annular conveyor unit 100 includes an annular guide rail 101, sliders 102, a servo motor base 103, a servo motor 104, a planetary reducer 105, a ball chain 106, a drive sprocket 107, a driven sprocket 108, and an oil-impregnated bushing 109. The annular guide rail 101 is fixed inside the conveying opening 2 and connected to the cabinet base plate on the side of the conveying opening 2 via a side connecting bracket. The drive sprocket 107 and the driven sprocket 108 are respectively fixed to the inner sides of both ends of the annular guide rail 101. The ball chain 106 is looped around the drive sprocket 107 and the driven sprocket 108. Multiple sliders 102 are provided and slidably connected to the outer track of the annular guide rail 101 at intervals and connected to the ball chain 106 via the oil-impregnated bushing 109. Each of the multiple sliders 102 is equipped with a pressing die unit 200. The servo motor 104 is directly connected to the planetary reducer 105 and fixed to the lower side of the upper base plate of the cabinet through the servo motor mount 103. The drive shaft end of the planetary reducer 105 is connected to the axle drive of the drive sprocket 107. In actual operation, the servo motor 104 drives the planetary reducer 105 to transmit and further drive the drive sprocket 107 and the ball chain 106 to move in a circular transmission motion, which further drives the sliders 102 on the circular guide rail 101 to slide, and then drives the pressing die unit on the slider 102 to drive the transmission on the circular guide rail 101. Its transmission mode follows the alignment mode step-by-step cycle action, which makes it convenient for the pressing die unit to enter different processing stations in sequence for processing.

[0020] In this embodiment, to facilitate the carrying of the mesh sponge eraser and to facilitate pressing and demolding, such as Figures 3 to 5As shown, the pressing die unit 200 includes a material tray 201, a pressing locking seat 202, and a pressing locking mechanism. The pressing locking seat is configured as a gate-shaped plate structure. The rear end of the material tray 201 is fixed to the lower side of the pressing locking seat 202, and the front end extends horizontally out of the pressing locking seat 202 with a strip-shaped opening 2011 at its front end. The lower part of the material tray 201 is fixedly connected to the corresponding slider 102. The pressing locking mechanism includes a linear bearing 203, a guide rod 204, a positioning sleeve, an upper pressure plate 205, a rubber locking pad 206, a pressure rod 207, a guide cylinder 208, a spring 209, and a locking pin 210. The transverse seat plate of the pressing locking seat 202 has an opening for the guide cylinder 208 to be fixedly installed. The lower end of the pressure rod 207 extends into the guide cylinder 208. The guide cylinder 207 extends freely up and down within the cylinder 208. A pressure head 2071 is located at the top of the pressure rod 207. A spring 209 is looped around the outer wall of the guide cylinder 208 between the pressure head 2071 and the material locking seat 202. A guide groove 2081 is formed on the inner wall of the guide cylinder 208, running vertically. A stepped pin hole 212 is radially formed on the middle section of the pressure rod 207. A locking pin 210 passes through the pin hole, with one end extending out of the rod and threadedly connected to an adjusting bolt 2101. The adjusting bolt 2101 is placed within the guide groove 2081 and slides freely up and down. The other end is a movable end that passes through a small-diameter through-hole in the pin hole and extends out of the outer wall of the rod. A locking hole 2082 is provided on the inner wall of the guide cylinder 208, opposite to the guide groove 2081. When the guide cylinder 208 is in the locked state, the movable end of the locking pin 210 corresponds to the position of the locking hole 2082. An adjusting spring 211, which is ring-fitted around the outside of the locking pin 210, is provided inside the large-diameter through hole of the pin hole 212. The adjusting spring 211 is located between the adjusting bolt and the stepped seat of the pin hole. When not locked, the adjusting spring 211 is in a compressed state. Therefore, when the movable end of the locking pin 210 moves to the position of the locking hole 2082, it can quickly drive the movable end of the locking pin 210 into the locking hole 2082. The lower end of the pressure rod 207 is vertically connected to the center plate of the upper pressure plate 205. In practical applications, the lower end of the pressure rod can be connected to the upper pressure plate through a connecting plate to improve connection stability. The guide rod 204 is configured as two rods... The guide rod 204 is installed diagonally on the pressure locking seat 202. Its lower end is vertically connected to the corner of the upper pressure plate 205, and its upper end passes through the corner of the horizontal plate of the pressure locking seat 202 and can move freely up and down relative to it. The guide rod 204 is slidably connected to the horizontal plate through the positioning sleeve linear bearing 203. The guide rod 204 effectively improves the stability of the upper pressure plate 205 during the pressing and locking process. The upper pressure plate 205 is placed above the material tray 201 and corresponds vertically to the material tray 201. Its front end has an upper opening 2051 corresponding to the strip opening at the front end of the material tray 201. A notch 2052 is opened on the outer side of the middle of the upper opening. The rubber locking pad 206 is fixed to the front end of the upper pressure plate 205 and is located on the side of the upper opening 2051. Therefore, in the actual locking process,By pressing the top of the pressure rod 207, the pressure rod 207 slides downwards within the guide cylinder 208 until the movable end of the locking pin 210 slides to the locking hole position and extends into the locking hole 2082, thereby locking the pressure rod 207 relative to the guide cylinder 208 and completing the locking action.

[0021] In this embodiment, for ease of material loading, such as Figure 6As shown, the feeding unit 300 includes a pneumatic suction cup 301, a tray 302, a rotating mechanism connecting rod, a pneumatic pushing mechanism, a lifting cylinder 303, a lifting cylinder seat 304, a linear guide rail 305, a rodless cylinder seat 306, a rodless cylinder 307, a rotary bearing seat 308, a rotary bearing, and a rotary suction cup fixing rod 309. The lifting cylinder seat 304 is vertically mounted and fixed to the upper base plate of the cabinet on the side of the annular guide rail 101. Two linear guide rails 305 are parallel and vertically fixed to one side of the lifting cylinder seat 304. The lifting cylinder 303 is vertically fixed to the upper end of the lifting cylinder seat 304 with the piston rod end facing downwards and connected to the upper edge of the middle part of the base plate of the rodless cylinder seat 306. The rodless cylinder seat 306 is horizontally vertically mounted. The rodless cylinder 307 is horizontally fixed to one side of the plate of the rodless cylinder seat 306 via two sliding blocks. An L-shaped support 310 is connected to the sliding block of the rodless cylinder 307. The pneumatic suction cup 301 is fixedly connected to the L-shaped support 310 via a rotating suction cup fixing rod 309 and can rotate freely relative to the L-shaped support 310. The rotating mechanism connecting rod includes two movable connecting rods 311 that are movably connected together. One end of the movable connecting rod 311 is connected to the rod body of the rotating suction cup fixing rod 309, and the other end is connected to a rotating bearing seat 308. The rotating bearing seat 308 is fixed to the rodless cylinder seat 306 at the tail of the rodless cylinder 307 and is movably connected to the end of the movable connecting rod via a rotating bearing. The tray 302 is placed on the upper base plate of the cabinet below the pneumatic suction cup 301. When the pressing mold unit on the slider 102 on the annular guide rail 101 moves to the feeding and shaping position, the tray 302 is exactly on the side of the material tray 201 on the pressing mold unit and the two are at the same horizontal position. The pneumatic pushing mechanism includes a pushing cylinder 312, a pushing cylinder seat 313, a pushing guide rail 314, and a pushing rod 315. The pushing cylinder 312 is fixed to the upper base plate of the cabinet through the pushing cylinder seat 313 and is placed on the side of the tray 302. The pushing guide rail 314 is fixed on the pushing cylinder seat 313. One end of the pushing rod 315 is slidably connected to the pushing guide rail 314 through a sliding seat, and the other end is connected to a pushing plate 316 and placed inside the tray 302. During operation, the lifting cylinder 303 first lowers the rodless cylinder 307 and the pneumatic suction cup 301 together onto the conveyor belt of the mesh sponge to pick up the sponge. Initially, the mesh sponge is in the open position of the mesh bag. The sponge is placed into the mesh bag manually or by other equipment before the feeding process in this embodiment begins. After picking up the sponge, the lifting cylinder 303 raises the pneumatic suction cup 301 to pick up the sponge. Then, the rodless cylinder 307 extends, moving the suction cup above the tray 302. During this movement, the pneumatic suction cup 301 rotates the rotating suction cup fixing rod 309, causing the pneumatic suction cup 301 and the mesh sponge to rotate together until the desired angle is reached.The pneumatic suction cup 301 releases the mesh sponge, causing it to fall onto the tray 302. Then, the pusher cylinder 312 moves the pusher rod 315 and pusher plate 316 linearly within the tray 302, pushing the sponge onto the material tray 201 of the side pressing mold unit. This completes the process of conveying the mesh sponge to the material tray 201 of the pressing mold unit.

[0022] In this embodiment, to facilitate the shaping of the mesh bag opening of the mesh sponge on the material tray 201, such as... Figure 7 As shown, the material outlet shaping unit 400 includes an upper opening shaping cylinder 401, an upper opening shaping pressure plate 402, a lower opening shaping cylinder 403, a lower opening shaping pressure plate 404, a material outlet shaping mold 405, upper and lower material outlet shaping cylinder seats 406, and a side-push device. The side-push device includes a side-push seat 407, a side-push plate 408, a side-push fixing plate 409, and a side-push cylinder 410. The side-push cylinder 410 is fixed to the upper base plate of the cabinet through the side-push seat 407, and the piston rod end of the side-push cylinder 410 is connected to the side-push plate. 408 and a side-push fixing plate 409, the side-push fixing plate 409 being vertically connected and fixed to the upper and lower material outlet shaping cylinder seat 406, the upper and lower material outlet shaping cylinder seat being vertically set, the upper opening shaping cylinder 401 and the lower opening shaping cylinder 403 being fixed to the upper and lower ends of the upper and lower material outlet shaping cylinder seat 406 respectively, the upper opening shaping pressure plate 402 and the lower opening shaping pressure plate 404 being respectively connected to the piston rod ends of the upper opening shaping cylinder 401 and the lower opening shaping cylinder 403 and being set to face each other, the material outlet shaping mold 40 5. Fixed in the middle position of the upper and lower material inlet shaping cylinder seat 406 and located between the upper shaping pressure plate 402 and the lower shaping pressure plate 404, when a mesh sponge product is conveyed onto the material tray 201 of the pressing mold unit on the slider 102 on the annular guide rail 101, since the mesh bag opening of the mesh sponge faces the material inlet shaping mold side, when the shaping process begins, the side push cylinder 410 pushes the upper and lower material inlet shaping cylinder seat 406 as a whole to move towards the mesh bag opening side of the mesh sponge until it reaches the material inlet shaping mold. 405 is placed inside the mesh bag opening, and then the upper shaping cylinder 401 and the lower shaping cylinder 403 are controlled to move up and down relative to each other. Then, the upper shaping plate 402 and the lower shaping plate 404 are controlled to press the upper and lower edges of the mesh bag opening of the mesh sponge, and flatten the upper and lower edges of the mesh bag opening, thus completing the shaping process of the mesh bag opening. During the shaping process, the pusher plate 316 of the feeding unit 300 is always pressed against the back side of the mesh sponge, thereby preventing the mesh sponge from loosening during the shaping process and affecting the shaping effect.

[0023] In this embodiment, to facilitate the rapid delivery of the folded water label tape to the mesh sponge wiper bag opening, such as... Figures 8 to 12As shown, the water-marking tape forming and feeding unit 500 includes a water-marking tape unwinding unit 501, a water-marking tape pulling unit 502, a water-marking tape folding unit 503, a water-marking tape cutting unit 504, and a water-marking tape feeding unit 505. The above units are respectively used to unwind the water-marking tape roll, pull the tape, fold and cut it, and finally send the folded and cut water-marking tape to the mesh bag opening of the mesh sponge on the material tray 201 on the pressing mold unit.

[0024] Furthermore, to facilitate the unwinding of the water level tape, such as Figures 8 to 10 As shown, the water level indicator tape unwinding unit 501 includes a water level indicator tape clamp 5011 and a tape pressing mechanism. The water level indicator tape clamp 5011 is fixed to the upper plate of the cabinet by a support frame and is used to hold the water level indicator tape. The tape pressing mechanism includes a tape pressing seat 5012 and a tape pressing spring 5013. The tape pressing seat 5012 is fixed to the rear side of the water level indicator tape clamp 5011 and has a through hole in the middle for the water level indicator tape to pass through. The tape pressing spring 5013 is placed at the top of the inner hole of the through hole and makes elastic contact with the water level indicator tape inside the through hole. By placing the water level indicator tape roll on the water level indicator tape clamp 5011 and then pulling out the end of the roll and passing it through the through hole of the tape pressing seat, the water level indicator tape inside the through hole is pressed by the tape pressing spring 5013, maintaining a certain friction force so that the length of the water level indicator tape is not affected by the inertia of the water level indicator tape roll, thus maintaining the stability of the water level indicator tape during transmission. In practical applications, an adjusting screw 5014 can be installed above the pressure belt seat. The lower end of the adjusting screw is threaded and passes through the pressure belt seat and is connected to the pressure belt spring. Then, the adjusting screw is rotated to adjust the position of the pressure belt spring in the through hole, thereby adjusting the elastic pressure between the pressure belt spring and the water level belt. Furthermore, to facilitate the pressing of the water level belt and prevent it from slipping, a pressure belt cylinder 5015 can be installed on the rear side of the pressure belt seat. The pressure belt cylinder is fixed by a support base 5016. A pressing plate 5017 is installed at the piston rod end of the pressure belt cylinder 5015. The middle of the support base below the pressing plate has a strip groove 5018 for the water level belt to pass through. The water level belt is transmitted in the strip groove 5018. The pressing plate is controlled to press down on the water level belt in the strip groove 5018, thereby pressing the water level belt to prevent it from slipping, which facilitates the subsequent processing.

[0025] Furthermore, to facilitate the automatic pulling out of the water level mark tape from the roll, such as... Figure 12As shown, the water level indicator tape pulling unit 502 includes a servo electric cylinder 5021, a gripper 5022, a pneumatic gripper cylinder 5023, a gripper cylinder seat 5024, and a gripper slide rail 5025. The gripper slide rail 5025 is linearly arranged along the unwinding direction of the water level indicator tape, with one end placed on one side of the pressure seat 5012 and the other end placed on one side of the annular guide rail 101. The gripper cylinder seat 5024 is slidably connected to the gripper slide rail 5025. The servo electric cylinder 5021 is placed on one side of the gripper slide rail 5025, with its piston rod extending and retracting in a direction parallel to the gripper slide rail 5025 and its end connected to the gripper cylinder seat 5024. The pneumatic gripper cylinder 5023 is fixed to the gripper cylinder seat 5022. 4. The gripper 5022 is mounted on the pneumatic gripper cylinder 5023 and driven by it to perform the up and down gripping and releasing actions. Therefore, in actual application, by controlling the servo electric cylinder 5021 to drive the pneumatic gripper cylinder 5023 to slide on the gripper slide rail 5025 until the end of the water level indicator tape passing through the strip groove 5018 on the support base is in the jaw of the gripper 5022, the pneumatic gripper cylinder 5023 is controlled to move so that the gripper 5022 clamps the end of the water level indicator tape. Then, the servo electric cylinder 5021 is controlled to drive the pneumatic gripper cylinder 5023 to move back in a straight line, thereby pulling a section of the water level indicator tape out of the pressing cylinder 5015, which facilitates the next step of folding and cutting.

[0026] In this embodiment, to further facilitate the folding and cutting of the water level marker tape, such as... Figure 11As shown, the water level mark tape cutting unit 504 includes a pneumatic scissors 5041 and a push cylinder 5042. The push cylinder 5042 pushes in a direction perpendicular to the conveying direction of the water level mark tape. A slide block is provided on the upper part of the push cylinder 5042. The cylinder body of the push cylinder 5042 has a groove that mates with the slide block. The front end of the slide block is connected to the piston rod end of the push cylinder 5042. The push cylinder 5042 drives the slide block to slide back and forth on its upper part. The pneumatic scissors 5041 are fixed to one side of the slide block, with the scissor blade facing the direction of the water level mark tape. Driven by the push cylinder 5042, they are pushed to the position of the water level mark tape and cut it. The water level mark tape folding unit 503 includes a rotary servo motor 50. 43. Clamping cylinder 5044, clamping claw 5045, and folding support rod 5046. The rotary servo motor 5043 is fixed on the other side of the slide. The clamping cylinder 5044 is connected to its rotating shaft end. The clamping cylinder 5044 is set as a parallel pneumatic gripper cylinder. The clamping claw 5045 consists of two Z-shaped clamping plates. One end of the two Z-shaped clamping plates is connected to the two gripping fingers of the parallel pneumatic gripper cylinder, which then drives the up and down opening and closing movement. One end of the folding support rod 5046 is fixed on the plate body of one of the Z-shaped clamping plates and close to the edge of the clamping opening of the two Z-shaped clamping plates. The other end is set towards the water level band. The folding support rod 5046 and the rotating shaft of the rotary servo motor 5043 are on the same axis. In actual operation, after the water level indicator tape pulling unit pulls the water level indicator tape to a certain length, the control system controls the push cylinder 5042 to drive the pneumatic shears 5041 and the rotary servo motor 5043 to move together to the side of the water level indicator tape until the water level indicator tape is inside the blade of the pneumatic shears 5041. At this time, the pneumatic shears 5041 and the clamping cylinder 5044 are both located between the pressing cylinder 5015 and the pneumatic gripper cylinder 5023. The pneumatic shears 5041 is located on one side of the pressing cylinder 5015, and the clamping cylinder 5044 is located on one side of the pneumatic gripper cylinder 5023. At this time, the pressing cylinder 5015 is controlled to press the tape tightly. The water level indicator is folded by controlling the clamping claw 5045 of the clamping cylinder 5044 to clamp the water level indicator. At this time, the clamping claw 5022 is close to the side of the pneumatic scissors 5041, and the folding support rod 5046 is also close to the water level indicator and located on the upper side of the water level indicator. Then, the pneumatic scissors 5041 is controlled to cut the water level indicator. Then, the rotary servo motor 5043 is controlled to drive the clamping cylinder 5044 to rotate upward by 180°. The clamping claw 5045 drives the cut end of the water level indicator to move to the other side of the folding support rod 5046 and get close to the water level indicator on the other side. This process realizes the folding process of the water level indicator.

[0027] Furthermore, to facilitate the stable delivery of the folded watermark tape to the mesh bag opening of the mesh sponge in the pressing die unit, such as... Figure 12As shown, the water level marker tape feeding unit 505 includes a servo linear module 5051, a telescopic cylinder seat 5052, a telescopic cylinder 5053, and a folding tape clamping cylinder 5054. The servo linear module 5051 is located on the other side of the gripper slide rail 5025, and its linear sliding direction is consistent with the setting direction of the gripper slide rail 5025. The telescopic cylinder seat 5052 is fixed on the slide of the servo linear module 5051, the telescopic cylinder 5053 is fixed on the telescopic cylinder seat 5052, and the folding tape clamping cylinder 5054 is fixedly connected to the piston rod end of the telescopic cylinder 5053. Its telescopic direction is perpendicular to the conveying direction of the water level marker tape. The head of the folding tape clamping cylinder 5054 has a... The feeding jaws 5055, which grip the folded water label tape, are used when the pressing mold unit is in the feeding and pressing position. After being shaped, the mesh bag opening of the mesh sponge on the unit faces the folded tape clamping cylinder 5054. The feeding jaws 5055 of the folded tape clamping cylinder 5054 clamp the head of the folded water label tape. At the same time, the jaws of the pneumatic jaw cylinder 5023 and the clamping jaws 5045 of the clamping cylinder 5044 are released. The servo linear module 5051 drives the folded tape clamping cylinder 5054 and the clamped water label tape to the mesh bag opening of the mesh sponge on the material tray 201 on the side of the pressing mold unit, thus realizing the feeding process of the folded water label tape.

[0028] Furthermore, such as Figure 13As shown, to facilitate pressing the mesh bag opening of the mesh sponge on the pressing mold unit to the water level indicator tape, the pressing unit 600 includes: a pressing cylinder 601, a pressing cylinder seat 602, a pressing head 603, a material outlet positioning cylinder 604, a material outlet positioning cylinder seat 605, and a material outlet positioning pin 606. The pressing cylinder seat 602 is fixed on the upper plate of the cabinet on one side of the annular guide rail 101 and is arranged opposite to the water level indicator tape feeding unit. The cylinder body of the pressing cylinder 601 is vertically fixed on the horizontal plate of the pressing cylinder seat 602, and the piston rod passes through the horizontal plate and is set vertically downwards. The pressing head... 603 is fixedly connected to the piston rod end of the clamping cylinder 601. When the pressing mold unit on the annular guide rail 101 is in the feeding pressing position, the clamping head 603 is located directly above the pressing rod 207 on the pressing mold unit. The material outlet positioning cylinder seat 605 is fixed to the horizontal plate of the clamping cylinder seat 602. The material outlet positioning cylinder 604 is vertically fixed on the material outlet positioning cylinder seat 605, with its piston rod vertically downward and connected to the material outlet positioning pin 606. In actual application, a positioning plate 607 can be connected to the lower end of its piston rod, and the material outlet positioning pin 606 is connected to the lower end of the positioning plate, with the material outlet positioning pin 606 vertically downward. The strip-shaped opening on the front side of the material tray 201 of the lower pressing mold unit is set and corresponds to the material tray 201 below. In actual application, the material outlet positioning cylinder 604 is first used to drive the material outlet positioning pin 606 to insert into the mesh bag opening of the mesh sponge below, first positioning the mesh bag opening of the mesh sponge. Then, the pressing head 603 presses the pressing rod 207 of the pressing unit. By pressing the pressing head at the top of the pressing rod 207, the pressing rod 207 slides down in the guide cylinder 208. The upper pressing plate 205 at the lower end of the pressing rod 207 will move down until it presses the mesh sponge on the material tray 201. The front mesh bag opening will also be pressed and fixed with the water mark belt during the pressing process between the upper pressure plate 205 and the material tray 201. At this time, the movable end of the locking pin 210 will slide to the lock hole position and extend into the lock hole, thereby locking the pressure rod 207 relative to the guide cylinder 208 and completing the locking action after pressing. After pressing, the feeding claw 5055 of the folding belt clamping cylinder 5054 of the water mark belt feeding unit is controlled to return to the initial position. The material outlet positioning cylinder 604 will also return to the initial position with the material outlet positioning pin 606, thereby completing the pressing and locking process between the mesh bag opening and the water mark belt.

[0029] In this embodiment, as Figure 14As shown, the water level gauge tape plugging unit 700 includes: a plugging cylinder seat 701, a plugging cylinder 702, a clamping mold 703, a plugging cylinder 704, and a plugging sheet 705. The plugging cylinder seat 701 is L-shaped and fixed to the upper base plate of the cabinet on one side of the annular guide rail 101. The plugging cylinder 702 is fixed to the front side of the horizontal plate of the plugging cylinder seat 701. The clamping mold 703 is connected to the lower end of the piston rod of the plugging cylinder 702 and corresponds vertically to the upper pressure plate 205 of the pressing mold unit located at the plugging station. The plugging cylinder 704 is fixed below the horizontal plate of the plugging cylinder seat 701, and its piston rod end is horizontally extendable. The sealing strip 705 is connected to the piston rod end of the sealing strip cylinder 704 and is arranged in a front-to-back opposite manner to the folded water level mark strip and the rubber locking pad on the pressing mold at the sealing strip station. In the actual sealing strip process, by controlling the sealing strip pressing cylinder 702 to move downward, the pressing mold 703 is driven to press down and press the upper platen of the pressing mold unit at the sealing strip station. Then, the sealing strip cylinder 704 is controlled to drive the sealing strip 705 to move horizontally towards the water level mark strip until it hits the end of the water level mark strip and inserts part of the water level mark strip into the rubber locking pad 206, so that the water level mark strip is placed on the upper part of the mesh bag opening of the mesh sponge, which facilitates the next step of sewing the water level mark strip with the mesh bag opening of the mesh sponge.

[0030] In this embodiment, as Figure 15 As shown, to facilitate the quick sewing of the mesh bag opening of the mesh sponge to the water label tape, the sewing unit 800 includes a sewing machine moving platform 801 and a sewing machine 802. The upper plate of the cabinet has mounting holes for the sewing machine 802. The sewing machine moving platform 801 is fixed below the mounting holes. The base of the sewing machine 802 is fixed on the sewing machine moving platform 801 and is driven by it to move freely above the mounting holes. The sewing machine moving platform 801 is configured as an XY axis moving platform. The sewing needle of the sewing machine 802 corresponds vertically to the mesh sponge opening position on the material tray 201 of the material pressing mold unit at the sewing station. The sewing machine moving platform 801 drives the sewing machine 802 to sew the mesh bag opening of the mesh sponge according to instructions, sewing the mesh bag opening of the mesh sponge together with the water label tape.

[0031] Furthermore, such as Figure 16As shown, the demolding unit 900 includes a demolding cylinder 901, a demolding cylinder seat 902, and a demolding ejector rod 903. The demolding cylinder seat 902 is fixed to one side of the annular guide rail 101. The demolding cylinder 901 is fixed on the demolding cylinder seat 902, and its piston rod end is horizontally oriented towards the pressure die unit in the demolding position. The demolding ejector rod 903 is fixed to the piston rod end of the demolding cylinder 901. When the pressure die unit is in the demolding position, the demolding cylinder 901 demolds. The ejector rod 903 is opposite to the locking hole of the material clamping mechanism on the material clamping die unit and is on the same axis. The ejector rod 903 is driven by the ejector cylinder 901 to extend horizontally and pass through the locking hole, thereby pushing the shaft end of the locking pin 210 in the locking hole out of the locking hole. The pressure rod 207 rebounds upward under the action of the spring 209, thereby driving the upper pressure plate 205 to move upward, so that the upper pressure plate 205 separates from the material tray 201, thereby realizing the unlocking and demolding process of the mesh sponge on the material tray 201.

[0032] In this embodiment, as Figure 16 , 17As shown, the tape removal unit 1000 includes a tape removal cylinder base 1001, a tape removal cylinder 1002, and a tape removal needle 1003. The tape removal cylinder base 1001 is fixed to one side of the annular guide rail 101. The tape removal cylinder 1002 is fixed on the tape removal cylinder base 1001 with its piston rod end facing downwards. The tape removal needle 1003 is fixed to the piston rod end of the tape removal cylinder 1002 via a connecting plate. The tape removal needle is positioned vertically downwards, and its lower end is connected to the material tray 201 on the pressing die unit at the tape removal station. The mesh sponge wipes are positioned vertically opposite each other; the product discharge unit 1100 includes a discharge cylinder 1101, a discharge cylinder seat 1102, and a discharge conveyor belt 1103. The discharge cylinder seat 1102 is fixed to one side of the tail of the annular guide rail. The discharge cylinder 1101 is fixedly connected to the discharge cylinder seat 1102, and its piston rod end is horizontally positioned and facing the pressing mold unit at the discharge station. The discharge conveyor belt is located on the other side of the annular guide rail 101, and its inlet is positioned opposite to the discharge cylinder 1101. Therefore, in the actual tape release process, firstly, the tape release cylinder 1002 is controlled to drive the tape release needle 1003 downward until the tape release needle 1003 inserts into the mesh fabric sponge, fixing the mesh fabric sponge in place. While the circular conveyor unit drives the pressing die unit backward, the tape release needle 1003 drives the mesh fabric sponge forward to compress it. During compression, the water-marker tape head inside the rubber locking pad will detach from the rubber locking pad and separate from the notch in the middle of the upper pressure plate 205, thus completing the tape release process. The tape release is completed at the instant... The stripping cylinder 1002 drives the stripping needle 1003 to move upward, detaching it from the mesh sponge. This also prevents the stripping needle 1003 from colliding with the pressing die unit, which would affect the stripping process. After the stripping is completed, the stripped mesh sponge is conveyed to the next discharge station. The discharge cylinder 1101 drives the push plate at the piston end of the discharge cylinder 1101 to push out the mesh sponge. The mesh sponge is pushed onto the discharge conveyor belt 1103 on the other side and further conveyed to the unloading position at the end, thus completing the discharge process of the mesh sponge.

[0033] In the overall practical application process, firstly, in the preceding process, the sponge is placed in a mesh bag using other equipment. One end of the mesh bag has an unsewn opening. After the mesh sponge bag with the placed sponge is conveyed to the material picking position on the side of this equipment, the control system of the overlock machine controls the operation of the circular conveyor unit, controlling the slider 102 to drive the pressing die unit to the first feeding and shaping station. At this time, the material tray 201 of the pressing die unit and the tray 302 of the feeding unit are at the same horizontal position and adjacent to each other. Then, the control system of the overlock machine issues a signal. The command is sent to the lifting cylinder 303 of the loading unit. The lifting cylinder 303 drives the rodless cylinder 307 and the pneumatic suction cup 301 to descend to the picking position. The pneumatic suction cup 301 picks up the mesh sponge. Then, the rodless cylinder 307 is controlled to extend, causing the rotating suction cup fixing rod 309 on the pneumatic suction cup 301 to rotate. This causes the pneumatic suction cup 301 and the mesh sponge to rotate and move together to the top of the tray 302, so that the mesh bag opening side of the mesh sponge faces inward. Then, the pneumatic suction cup 301 is controlled to release the mesh sponge. The sponge falls onto tray 302, at which point tray 302 and material tray 201 are at the same horizontal level and corresponding. Then, the pusher cylinder 312 is controlled to drive the pusher rod 315 and pusher plate to move linearly within tray 302, pushing the mesh sponge in tray 302 onto the material tray 201 of the pressing mold unit on the side. This completes the feeding process of conveying the mesh sponge to the material tray 201 of the pressing mold unit. Next is the shaping process of the mesh bag opening of the mesh sponge. When the pusher cylinder 312 pushes the mesh sponge onto the material tray 201... When the mesh sponge is in position 01, the mesh bag opening of the mesh sponge also enters the mold of the shaping unit. At this time, the external sensor detects that the mesh sponge has entered the shaping port and sends a signal to the control system. The control system sends a command to the upper shaping cylinder 401 and the lower shaping cylinder 403 to move up and down relative to each other, which in turn drives the upper shaping plate 402 and the lower shaping plate 404 to press the upper and lower edges of the mesh bag opening of the mesh sponge, so that the mesh bag opening fits into the mold, and then the upper and lower edges of the mesh bag opening are flattened, thus completing the shaping process of the mesh bag opening.After the mesh bag opening is shaped, the circular conveyor unit drives the pressing mold unit to continue conveying the material to the feeding and pressing station according to the preset program. The next step involves pulling, folding, and feeding the water-marking tape. First, the tape pulling process is performed, which involves pulling out the water-marking tape wound on the water-marking tape chuck 5011 for easy cutting and folding. The water-marking tape wound on the water-marking tape chuck 5011 is manually pulled out and passes through the pressing seat 5012, extending a portion of the tape. Then, the overlock machine sends a command to control the servo electric cylinder 5021 to drive the pneumatic gripper cylinder 5023 to slide on the gripper slide rail 5025 until the end of the water-marking tape extending from the through hole side of the pressing seat 5012 is within the jaws of the gripper 5022. At this point, the pneumatic gripper... The movement of the claw cylinder 5023 causes the gripper 5022 to clamp the end of the water level indicator tape. Then, the servo electric cylinder 5021 drives the pneumatic gripper cylinder 5023 to move linearly back to a preset position, pulling the water level indicator tape out of the pressure seat 5012. The overlock machine then issues commands to the push cylinder 5042, which drives the pneumatic scissors 5041 and the rotary servo motor 5043 to move to the side of the water level indicator tape until it is within the blades of the pneumatic scissors 5041. Then, the gripper 5045 of the clamping cylinder 5044 clamps the water level indicator tape. At this point, the gripper 5022 is positioned close to the pneumatic scissors 5041, and the folding support rod 5046 is also close to and above the water level indicator tape. Finally, the pneumatic scissors 5022... 041. Cut the water level indicator tape, then control the rotary servo motor 5043 to drive the clamping cylinder 5044 to rotate upwards by 180°. The clamping claw 5045 moves the cut end of the water level indicator tape to the other side of the folding support rod 5046 and brings it close to the water level indicator tape on the other side, folding the water level indicator tape into a double layer. This process realizes the folding process of the water level indicator tape. After folding, continue to control the feeding claw 5055 of the folding tape clamping cylinder 5054 to clamp the head of the folded water level indicator tape. At the same time, release the claw 5022 of the pneumatic claw cylinder 5023 and the clamping claw 5045 of the clamping cylinder 5044. The servo linear module 5051 drives the folding tape clamping cylinder 5054 to move to the side pressing die unit. The mesh cloth sponge on the material tray 201 is inserted into the mesh bag opening, thus completing the feeding process of the folded water label tape. After the feeding is completed, the pressing process continues. In order to press the mesh bag opening of the mesh cloth sponge together with the water label tape, the material outlet positioning cylinder 604 drives the material outlet positioning pin 606 to insert into the mesh bag opening of the mesh cloth sponge below. First, the mesh bag opening of the mesh cloth sponge is positioned. Then, the pressing head 603 presses the pressing rod 207 of the pressing unit, thereby driving the upper pressing plate 205 to press down on the mesh cloth sponge on the material tray 201 until the mesh bag opening is pressed together with the end of the fed water label tape. After pressing and locking, the feeding claw 5055 of the folding tape clamping cylinder 5054 of the water label tape feeding unit is controlled and retracted to the initial position.Then, the circular conveyor unit continues to drive the pressure material mold unit to the next feeding station. The feeding cylinder 702 is controlled to move downwards, causing the pressure mold 703 to press down against the upper pressure plate of the pressure mold unit at the feeding station. The upper pressure plate further presses down on the mesh bag opening of the mesh sponge, preventing the water level indicator tape from detaching from the mesh bag opening during feeding. Then, the feeding cylinder 704 is controlled to move the feeding plate 705 horizontally towards the water level indicator tape until it abuts the tail of the water level indicator tape and inserts part of the tape into the rubber locking pad. This ensures that one end of the water level indicator tape is placed inside the mesh bag opening of the mesh sponge, and the other end is placed inside the mesh of the mesh sponge. The upper part of the bag opening facilitates the next step of sewing the water level indicator tape and the mesh sponge together. The mesh sponge is then transported to the next sewing station via a circular conveyor unit. Typically, a sensor detection unit at the front detects the presence of the mesh sponge in the pressing die unit. If present, the sewing machine moving platform 801 is activated, moving the sewing machine 802 to the preset initial sewing position. The sewing machine 802 then begins sewing. The sewing machine moving platform 801 moves the sewing machine 802 within a plane according to a preset program. The needle of the sewing machine 802 moves within the front opening of the material tray 201 and the upper pressure plate 205, achieving automatic sewing. The sewing action completes the stitching process between the water label tape and the mesh sponge bag opening; then, the sewn mesh sponge is conveyed to the next step of the demolding process. The demolding cylinder 901 drives the demolding ejector rod 903 to push out the locking pin 210 on the pressure locking mechanism, which in turn causes the upper pressure plate 205 to return to its initial position, thus completing the decompression and demolding process of the mesh sponge. After demolding, the mesh sponge is conveyed to the tape release station. First, the tape release cylinder 1002 is controlled to drive the tape release needle 1003 downward until the tape release needle 1003 inserts into the mesh sponge, fixing the mesh sponge in place. While the circular conveyor unit drives the pressure mold unit to move backward... The release needle 1003 compresses the mesh sponge eraser forward. During compression, the water level indicator tape inside the rubber locking pad detaches and separates from the notch in the middle of the mold pressure plate, thus completing the tape release process. The release cylinder 1002 is deactivated by a delay, the delay time being set until the water level indicator tape can detach. After tape release, the detached mesh sponge eraser is conveyed to the next discharge station. The discharge cylinder 1101 drives the push plate at the piston end of the discharge cylinder 1101 to push out the mesh sponge eraser. The mesh sponge eraser is pushed onto the discharge conveyor belt 1103 on the other side and further conveyed to the end unloading position, thus completing the discharge process of the mesh sponge eraser.

[0034] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A machine for automatic feeding, shaping, and watermark sewing / overlocking of mesh sponge erasers, characterized in that: It includes a cabinet, a ring conveyor unit, a pressing mold unit, and a feeding unit, a material inlet shaping unit, a water mark belt forming and feeding unit, a pressing unit, a water mark belt plugging unit, a sewing unit, a demolding unit, a belt removal unit, and a product discharge unit, which are respectively installed on the upper plate of the cabinet and placed on the side of the ring conveyor belt. The upper plate of the cabinet has a conveying opening for installing and fixing the ring conveyor unit for operation; The pressing mold unit consists of multiple units, which are fixed at intervals on the conveyor belt of the circular conveyor unit. When the pressing mold unit is conveyed by the conveyor belt, it passes in sequence through the feeding and shaping station of the feeding unit and the material outlet shaping unit, the feeding and pressing station of the water mark belt forming and feeding unit and the pressing station, the sealing station of the water mark belt sealing unit, the sewing station of the sewing unit, the demolding station of the demolding unit, the sealing station of the stripping unit, and the discharge station of the product discharge unit. The feeding unit is located on the right side of the ring conveyor unit and is used to sequentially transport the mesh sponge erasers to be edge-locked to the pressing mold unit on the ring conveyor of the feeding and shaping station. The material outlet shaping unit is located on the left side of the circular conveyor unit and is arranged opposite to the feeding unit. It is used to flatten the mesh bag opening of the mesh cloth sponge on the pressing mold at the feeding shaping station. The water mark strip forming and feeding unit is located behind the material outlet shaping unit and is used to fold and shape the continuous long strip of water mark strip and transport it to the mesh bag opening of the mesh sponge on the pressing mold of the feeding and pressing station. The pressing unit is located behind the feeding unit and is arranged opposite to the water mark tape forming and feeding unit. It is used to press the mesh bag opening of the mesh cloth sponge on the pressing mold unit of the feeding pressing station, and then press and fix the water mark tape inside the mesh bag opening. The water mark tape plugging unit is located behind the water mark tape forming and feeding unit and is used to place part of the water mark tape pressed on the pressing mold of the plugging station above the opening of the mesh cloth sponge wiping cloth bag. The sewing unit is used to sew and connect the water mark tape on the pressing mold unit at the sewing station to the mesh bag opening of the mesh sponge; The demolding unit, the tape removal unit, and the product discharge unit are fixed sequentially to the rear side of the sewing machine and are used to remove the sewn mesh sponge from the pressing mold unit, remove the tape, and discharge the product, respectively. The circular conveyor unit, pressing mold unit, feeding unit, material outlet shaping unit, water mark belt forming and feeding unit, pressing unit, water mark belt plugging unit, sewing unit, demolding unit, belt removal unit, and product discharge unit are all controlled and operated by a comprehensive control system.

2. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 1, characterized in that: The circular conveyor unit includes a circular guide rail, sliders, a servo motor base, a servo motor, a planetary reducer, a ball chain, a drive sprocket, a driven sprocket, and an oil-impregnated bushing. The circular guide rail is fixed inside the conveying opening and connected to the cabinet base plate on the side of the conveying opening via a side connecting bracket. The drive sprocket and driven sprocket are respectively fixed to the inner sides of both ends of the circular guide rail. The ball chain loops around the drive sprocket and driven sprocket. Multiple sliders are configured and slidably connected to the outer track of the circular guide rail at intervals and connected to the ball chain via the oil-impregnated bushing. Each slider is equipped with a pressing mold unit. The servo motor is directly connected to the planetary reducer and connected via a servo motor... The base is fixed to the lower side of the upper plate of the cabinet, and the drive shaft of the planetary reducer is connected to the axle of the drive sprocket. The pressing mold unit includes a material tray, a pressing locking seat, and a pressing locking mechanism. The pressing locking seat is configured as a portal plate structure. The rear end of the material tray is fixed to the lower side of the pressing locking seat, and the front end extends horizontally out of the pressing locking seat with a strip-shaped opening. The lower part of the material tray is fixedly connected to a slider at a corresponding position. The pressing locking mechanism includes a linear bearing, a guide rod, a positioning sleeve, an upper pressure plate, a rubber locking pad, a pressure rod, a guide cylinder, a spring, and a locking pin. The transverse base plate of the pressing locking seat has an opening for the guide cylinder to be fixedly installed, and the lower end of the pressure rod extends into the guide cylinder. The pressure rod has a pressure head at its top, and a spring ring is fitted onto the outer wall of a guide cylinder between the pressure head and the material locking seat. The inner wall of the guide cylinder has a guide groove running vertically. A stepped pin hole is radially located on the middle section of the pressure rod. A locking pin passes through the pin hole, with one end extending out of the rod and threadedly connected to an adjusting bolt. The adjusting bolt is placed in the guide groove and slides freely up and down. The other end is a movable end that passes through a small-diameter through-hole in the pin hole and extends out of the outer wall of the rod. A locking hole is located on the inner wall of the guide cylinder, opposite to the guide groove. When locked, the movable end of the locking pin corresponds to the position of the locking hole. A ring is fitted into the large-diameter through-hole of the pin hole, which is fitted onto the locking pin. An adjusting spring is located outside the pin, between the adjusting bolt and the stepped seat of the pin hole. The lower end of the pressure rod is vertically connected to the center plate of the upper pressure plate. Two guide rods are installed diagonally on the pressure locking seat. The lower end of the guide rod is vertically connected to the corner of the upper pressure plate, and the upper end passes through the corner of the horizontal plate of the pressure locking seat and moves freely up and down relative to it. The guide rod and the horizontal plate are slidably connected by a positioning sleeve linear bearing. The upper pressure plate is placed above the material tray and corresponds vertically to the material tray. Its front end has an upper opening corresponding to the strip opening at the front end of the material tray. A notch is opened on the outer side of the middle of the upper opening. The rubber locking pad is fixed to the front end of the upper pressure plate and located on the side of the upper opening.

3. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 2, characterized in that: The feeding unit includes a pneumatic suction cup, a tray, a rotating mechanism linkage, a pneumatic pushing mechanism, a lifting cylinder, a lifting cylinder seat, a linear guide rail, a rodless cylinder seat, a rodless cylinder, a rotary bearing seat, a rotary bearing, and a rotating suction cup fixing rod. The lifting cylinder seat is vertically mounted and fixed to the upper plate of the cabinet on the side of the annular guide rail. Two parallel linear guide rails are vertically fixed to one side of the lifting cylinder seat. The lifting cylinder is vertically fixed to the upper end of the lifting cylinder seat with its piston rod facing downwards and connected to the upper edge of the middle of the rodless cylinder seat's base plate. The rodless cylinder seat is horizontally mounted and slidably connected to the linear guide rail via two sliding seats. The rodless cylinder is horizontally fixed to one side of the rodless cylinder seat's plate. An L-shaped support is connected to the sliding seat of the rodless cylinder. The pneumatic suction cup is fixedly connected to the L-shaped support via a rotating suction cup fixing rod and can rotate freely relative to the L-shaped support. The rotating mechanism linkage includes two movable linkages that are movably connected together. One end of the moving connecting rod is connected to the rod body of the rotating suction cup fixing rod, and the other end is connected to the rotating bearing seat. The rotating bearing seat is fixed on the rodless cylinder seat at the tail of the rodless cylinder and is movably connected to the end of the moving connecting rod through the rotating bearing. The tray is placed on the upper base plate of the cabinet below the pneumatic suction cup. When the pressing mold unit on the slider on the annular guide rail moves to the material feeding and shaping stage, the tray is exactly on the side of the material tray on the pressing mold unit and the two are at the same horizontal position. The pneumatic pushing mechanism includes a pushing cylinder, a pushing cylinder seat, a pushing guide rail, and a pushing rod. The pushing cylinder is fixed on the upper base plate of the cabinet through the pushing cylinder seat and is placed on the side of the tray. The pushing guide rail is fixed on the pushing cylinder seat. One end of the pushing rod is slidably connected to the pushing guide rail through a slide seat, and the other end is connected to a pushing plate and placed inside the tray. The pushing cylinder drives the pushing rod and the pushing plate to move linearly inside the tray and push the sponge inside the tray to the material tray of the pressing mold unit on the side.

4. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 3, characterized in that: The material outlet shaping unit includes an upper shaping cylinder, an upper shaping pressure plate, a lower shaping cylinder, a lower shaping pressure plate, a material outlet shaping mold, upper and lower material outlet shaping cylinder seats, and a side-push device. The side-push device includes a side-push seat, a side-push plate, a side-push fixing plate, and a side-push cylinder. The side-push cylinder is fixed to the upper base plate of the cabinet via the side-push seat. The piston rod end of the side-push cylinder is connected to the side-push plate and the side-push fixing plate. The side-push fixing plate is vertically connected and fixed to the upper and lower material outlet shaping cylinder seats. The upper and lower material outlet shaping cylinder seats are vertically arranged, and the upper and lower shaping cylinders are fixed vertically opposite to each other on the upper base plate. The upper and lower ends of the material outlet shaping cylinder seat are respectively connected to the piston rod ends of the upper and lower shaping cylinders and are arranged opposite to each other. The material outlet shaping mold is fixed in the middle position of the upper and lower material outlet shaping cylinder seats and is located between the upper and lower shaping plates. When the pressing mold unit on the slider on the annular guide rail moves to the material feeding and shaping station to start the shaping process, the front end of the material tray on the pressing mold unit is located on the side of the material outlet shaping mold, which facilitates the shaping process of the mesh bag opening of the mesh sponge on the material tray.

5. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 4, characterized in that: The water level mark tape forming and feeding unit includes a water level mark tape unwinding unit, a water level mark tape pulling unit, a water level mark tape folding unit, a water level mark tape cutting unit, and a water level mark tape feeding unit. The above units are respectively used to unwind and pull the water level mark tape roll, fold and cut it, and finally send the folded and cut water level mark tape into the mesh bag opening of the mesh sponge on the material tray of the pressing mold unit. The water level indicator tape unwinding unit includes a water level indicator tape clamping plate and a tape pressing mechanism. The water level indicator tape clamping plate is fixed to the upper plate of the cabinet by a support frame and is used to hold the water level indicator tape. The tape pressing mechanism includes a tape pressing seat and a tape pressing spring. The tape pressing seat is fixed to the rear side of the water level indicator tape clamping plate and has a through hole in the middle for the water level indicator tape to pass through. The tape pressing spring is placed at the top of the inner hole of the through hole and elastically contacts the water level indicator tape inside the through hole. The water level indicator tape pulling unit includes a servo electric cylinder, a gripper, a pneumatic gripper cylinder, and a gripper cylinder. The device includes a seat and a gripper slide rail. The gripper slide rail is set in a straight line along the unwinding direction of the water level tape. One end of the slide rail is placed on one side of the pressure seat, and the other end is placed on one side of the annular guide rail. The gripper cylinder seat is slidably connected to the gripper slide rail. The servo electric cylinder is placed on one side of the gripper slide rail. The extension and retraction direction of the piston rod is parallel to the gripper slide rail, and the end of the piston rod is connected to the gripper cylinder seat. The pneumatic gripper cylinder is fixed on the gripper cylinder seat. The gripper is installed on the pneumatic gripper cylinder and is driven by it to achieve the up and down gripping and releasing action. The water level marker tape cutting unit includes pneumatic shears and a push cylinder. The push cylinder is fixed to the side of the servo electric cylinder, and its pushing direction is perpendicular to the conveying direction of the water level marker tape. A slide block is provided on the upper part of the push cylinder, and the cylinder body has a groove that mates with the slide block. The front end of the slide block is connected to the end of the piston rod of the push cylinder. The push cylinder drives the slide block to slide back and forth on its upper part. The pneumatic shears are fixed to one side of the slide block, with the shear blade facing the direction of the water level marker tape. Driven by the push cylinder, they are pushed to the water level marker tape position and cut the tape. The water level marker tape folding unit includes a rotating... The system includes a rotary servo motor, a clamping cylinder, a clamping claw, and a folding support rod. The rotary servo motor is fixed on the other side of the slide. The clamping cylinder is connected to its rotating shaft end and is configured as a parallel pneumatic clamping claw cylinder. The clamping claw consists of two Z-shaped clamping plates. One end of the two Z-shaped clamping plates is connected to two clamping fingers of the parallel pneumatic clamping claw cylinder, which in turn drives the up-and-down opening and closing movement. One end of the folding support rod is fixed to the plate body of one of the Z-shaped clamping plates and close to the edge of the clamping opening of the two Z-shaped clamping plates. The other end is set towards the direction of the water level gauge. The folding support rod and the rotating shaft of the rotary servo motor are on the same axis. The water-marking tape feeding unit includes a servo linear module, a telescopic cylinder seat, a telescopic cylinder, and a folding tape clamping cylinder. The servo linear module is located on the other side of the gripper slide rail, and its linear sliding direction is consistent with the setting direction of the gripper slide rail. The telescopic cylinder seat is fixed on the slide of the servo linear module, and the telescopic cylinder is fixed on the telescopic cylinder seat. The folding tape clamping cylinder is fixedly connected to the piston rod end of the telescopic cylinder, and its telescopic direction is perpendicular to the conveying direction of the water-marking tape. The head of the folding tape clamping cylinder has a feeding gripper for clamping the folded water-marking tape. When the pressing mold unit is in the feeding pressing position, the feeding gripper of the folding tape clamping cylinder clamps the folded water-marking tape to the mesh bag opening of the mesh sponge on the material tray on the side of the pressing mold unit.

6. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 5, characterized in that: The pressing unit includes: a pressing cylinder, a pressing cylinder seat, a pressing head, a material outlet positioning cylinder, a material outlet positioning cylinder seat, and a material outlet positioning pin. The pressing cylinder seat is fixed on the upper base plate of the cabinet on one side of the annular guide rail and is arranged opposite to the water-marker belt feeding unit. The cylinder body of the pressing cylinder is vertically fixed on the horizontal plate of the pressing cylinder seat. The piston rod passes through the horizontal plate and is set vertically downward. The pressing head is fixedly connected to the piston rod end of the pressing cylinder. When the pressing mold unit on the annular guide rail is in the feeding pressing position, the pressing head is located directly above the pressing rod on the pressing mold unit. The material outlet positioning cylinder seat is fixed on the horizontal plate of the pressing cylinder seat. The material outlet positioning cylinder is vertically fixed on the material outlet positioning cylinder seat. Its piston rod is vertically downward and connected to the material outlet positioning pin. The material outlet positioning pin is vertically downward and corresponds to the strip opening on the front side of the material tray of the pressing mold unit below.

7. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 6, characterized in that: The water level gauge tape plugging unit includes: a plugging cylinder seat, a plugging cylinder, a pressing mold, a plugging cylinder, and a plugging sheet. The plugging cylinder seat is L-shaped and fixed to the upper base plate of the cabinet on one side of the annular guide rail. The plugging cylinder is fixed to the front side of the horizontal plate of the plugging cylinder seat. The pressing mold is connected to the lower end of the piston rod of the plugging cylinder and corresponds to the upper pressure plate of the pressing mold unit located at the plugging station. The plugging cylinder is fixed below the horizontal plate of the plugging cylinder seat and its piston rod end is horizontally telescopic. The plugging sheet is connected to the end of the piston rod of the plugging cylinder and is arranged in a front-to-back opposite manner to the folded water level gauge tape and rubber locking pad on the pressing mold at the plugging station.

8. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 7, characterized in that: The sewing unit includes a sewing machine moving platform and a sewing machine. The upper plate of the cabinet has a mounting hole for mounting the sewing machine. The sewing machine moving platform is fixed below the mounting hole. The base of the sewing machine is fixed on the sewing machine moving platform and is driven by it to move freely above the mounting hole. The sewing machine moving platform is set as an XY axis moving platform. The sewing needle of the sewing machine corresponds vertically to the mesh bag opening of the mesh sponge on the material tray of the pressing die unit at the sewing station.

9. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 8, characterized in that: The demolding unit includes a demolding cylinder, a demolding cylinder seat, and a demolding ejector rod. The demolding cylinder seat is fixed to one side of the annular guide rail. The demolding cylinder is fixed on the demolding cylinder seat with its piston rod end horizontally facing the pressing mold unit in the demolding position. The demolding ejector rod is fixed to the piston rod end of the demolding cylinder. When the pressing mold unit is in the demolding position, the demolding ejector rod of the demolding cylinder is opposite to the locking hole of the pressing locking mechanism on the pressing mold unit and is on the same axis. The demolding ejector rod extends out and passes through the locking hole, thereby pushing the shaft end of the locking pin in the locking hole out of the locking hole. The pressure rod rebounds upward under the action of the spring, thereby driving the upper pressure plate upward, thus realizing the unlocking and demolding process of the mesh sponge on the material tray.

10. The automatic feeding, shaping, and watermark sewing and overlocking machine for mesh sponge erasers according to claim 9, characterized in that: The stripping unit includes a stripping cylinder seat, a stripping cylinder, and a stripping needle. The stripping cylinder seat is fixed to one side of the annular guide rail. The stripping cylinder is fixed on the stripping cylinder seat with its piston rod end facing downwards. The stripping needle is fixed to the piston rod end of the stripping cylinder via a connecting plate. The stripping needle is facing downwards, and its lower end corresponds vertically to the mesh sponge on the material tray of the pressing mold unit at the stripping station. The product discharge unit includes a discharge cylinder, a discharge cylinder seat, and a discharge conveyor belt. The discharge cylinder seat is fixed to one side of the tail of the annular guide rail. The discharge cylinder is fixedly connected to the discharge cylinder seat, and its piston rod end is horizontally positioned and facing the pressing mold unit at the discharge station. The discharge conveyor belt is located on the other side of the annular guide rail, and its inlet is opposite to the discharge cylinder.

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