Metal workpiece rust removal device

Abstract

The invention discloses a metal workpiece derusting device, which belongs to the technical field of metal workpiece processing, and comprises a machine body, the top end of the machine body is provided with an inlet and outlet groove of a U-shaped structure, the outlet section of the inlet and outlet groove gradually inclines downwards from the side close to the inlet section, and the machine body is internally provided with a derusting cavity communicated with the inlet and outlet groove; an auxiliary cleaning opening communicating with the rust removal cavity is formed in the side wall of the machine body. According to the device, tubular metal workpieces to be derusted can be continuously and automatically fed, tubular metal workpieces subjected to secondary derusting can be continuously and automatically discharged, manual participation is not needed in the whole process, time and labor are saved, and the derusting efficiency of the device is improved; meanwhile, the device conducts two-time rust removal, and the rust removal effect of the device can be improved; meanwhile, impurities generated in the two-time rust removal process can be cleaned, and the labor intensity of workers is reduced; and meanwhile, impurities which are not completely removed by the negative-pressure adsorption impurity removing mechanism can be removed, the auxiliary cleaning effect is achieved, and the cleaning effect of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal workpiece processing, and in particular relates to a metal workpiece rust removal device. Background Art

[0002] Under the influence of environment and temperature, metal workpieces often rust on their surfaces. If the rust is not removed in time, it will not only affect the appearance quality of the metal workpieces, but may also lead to a decrease in the mechanical properties and weakening of the structural strength of the metal workpieces. In severe cases, it may even cause safety accidents. Therefore, timely rust removal of metal workpieces is particularly important.

[0003] Chinese Patent No. 202321302022.4 discloses a rust removal device for the outer surface of a metal workpiece, comprising a workbench, a water tank and an inclined trough are respectively arranged on both sides of the top of the workbench, a pump body is arranged in the water tank, a telescopic rod is arranged at the inclined top of the inclined trough, a U-shaped hinged seat is arranged at the top of the telescopic rod, a spray head is arranged in the U-shaped hinged seat, a water pipe is arranged between the spray head and the pump body, two mounting seats are symmetrically arranged at the inclined middle part of the inclined trough, rust removal wheels driven by a driving motor are arranged in the two mounting seats, a collecting box with a filtering structure that can move up and down is arranged at the inclined bottom of the inclined trough, a water pipe is arranged inside the workbench, and one end of the water pipe is It is located below the collecting box and has a water pump at the other end. The other end of the water pump is connected to the water tank. When the device removes rust from the outer surface of a metal workpiece, the angle of the spray head is adjusted based on the outer surface of the metal workpiece. After adjustment, the metal workpiece is placed under the rust removal wheel, and the driving motor drives the rust removal wheel to rotate to remove rust from the outer surface of the metal workpiece. During the rust removal process, the pump body draws the water in the water tank into the spray head through a water pipe, and the spray head sprays the water onto the metal workpiece being rusted, taking away iron filings. The iron filings and waste water flow along the arc of the inclined groove into the collecting box, and the iron filings remain in the filtering structure. The filtered waste water is pumped back to the water tank through the water pump to realize water circulation.

[0004] The inventors of the present application have found that the above-mentioned device for removing rust from the outer surface of a metal workpiece requires manual labor to take the metal workpiece and place it in a suitable position before the rust removal operation can be performed, which is not only time-consuming and labor-intensive, but also has low rust removal efficiency. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a metal workpiece rust removal device, which has the characteristics of saving time and labor and improving the rust removal efficiency and effect of the device.

[0006] To achieve the above object, the present invention provides the following technical solution: a metal workpiece rust removal device, comprising: A machine body, wherein a U-shaped inlet and outlet groove is provided at the top of the machine body, and an outlet section of the inlet and outlet groove gradually tilts downward from close to the inlet section to away from the inlet section. A rust removal cavity connected to the inlet and outlet groove is provided inside the machine body, and an auxiliary cleaning port connected to the rust removal cavity is provided on the side wall of the machine body; The in-and-out mechanism is arranged on the side wall of the machine body near the inlet section of the in-and-out slot, and is used to push the tubular metal workpiece into the in-and-out slot through the inlet of the in-and-out slot and to push the tubular metal workpiece into the in-and-out slot through the outlet of the in-and-out slot; A negative pressure adsorption rotary conveying mechanism is arranged inside the rust removal chamber and below the inlet and outlet slot, and is used to receive the tubular metal workpiece pushed into the inlet and outlet slot by the inlet and outlet mechanism, and to negatively adsorb the tubular metal workpiece and rotary convey it; The clamping mechanisms are respectively arranged inside the rust removal chamber at both sides of the negative pressure adsorption rotary conveying mechanism, and are used to clamp the tubular metal workpiece conveyed by the negative pressure adsorption rotary conveying mechanism; A moving mechanism is arranged inside the rust removal chamber between the machine body and the two clamping mechanisms, and is used to move the two clamping mechanisms to the rust removal area inside the rust removal chamber and to move the two clamping mechanisms to the initial position; The rust removal mechanism is arranged inside the rust removal chamber at a side where the two clamping mechanisms are away from each other, and is used to remove rust from the tubular metal workpiece; A negative pressure adsorption debris removal mechanism is arranged inside the rust removal chamber on a side away from the two rust removal mechanisms, and is used for negative pressure adsorption removal of debris generated during the rust removal process of the tubular metal workpiece; A conveying mechanism, arranged on the side wall of the machine body near the outlet section of the inlet and outlet slot, for receiving the tubular metal workpiece pushed out of the inlet and outlet slot and conveying it to a collection container; The linkage mechanism is arranged between the conveying mechanism and the negative pressure adsorption rotary conveying mechanism, and is used to make the negative pressure adsorption rotary conveying mechanism and the conveying mechanism linked to realize the rotary conveying function of the negative pressure adsorption rotary conveying mechanism; A programmable controller is fixedly connected to the outer wall of the machine body and is electrically connected to the in-and-out mechanism, the negative pressure adsorption rotating conveying mechanism, the clamping mechanism, the moving mechanism, the rust removal mechanism, the negative pressure adsorption debris removal mechanism and the conveying mechanism; The auxiliary cleaning door is arranged inside the auxiliary cleaning port, and a first connecting shaft is rotatably connected between the top of the auxiliary cleaning door and the top of the auxiliary cleaning port.

[0007] Furthermore, the in-and-out mechanism includes an L-shaped storage box fixedly connected to the side wall of the machine body near the inlet section of the inlet and outlet groove, the vertical section of the storage box stores tubular metal workpieces, the storage box is fixedly connected to an electric cylinder away from the side wall of the machine body, the output end of the electric cylinder extends to the inside of the storage box and is fixedly connected to a push cylinder, the push cylinder has the same volume as the tubular metal workpiece, the transverse section of the storage box stores the push cylinder, when the push cylinder is stored in the transverse section of the storage box, it does not affect the falling of the tubular metal workpiece in the vertical section of the storage box, the storage box is provided with an outlet connecting the storage box and the inlet section of the inlet and outlet groove near the side wall of the machine body, the push cylinder is pushed by the electric cylinder to push the tubular metal workpiece out of the storage box through the outlet, when the push cylinder is pushed to the limit, the tubular metal workpiece is located in the inlet and outlet groove, the push cylinder does not leave the area in the vertical section of the storage box, to avoid the falling of the tubular metal workpiece affecting the resetting of the push cylinder, the electric cylinder is electrically connected to the programmable controller.

[0008] Furthermore, the negative pressure adsorption rotating conveying mechanism includes a support frame with a U-shaped structure fixedly connected to the side wall of the machine body near the outlet section of the inlet and outlet grooves, and a rotating frame arranged inside the rust removal chamber and below the inlet and outlet grooves. The support frame is fixedly connected to a first air pump near the inner wall of the machine body side, and the air inlet end of the first air pump is fixedly connected to a connecting pipe with a T-shaped structure, and the other two ends of the connecting pipe are respectively fixedly connected to electric control valves and the support frame. A driving cavity connected to the connecting pipe is opened inside the support frame near the machine body side, and the connecting pipe extends to the inner end of the driving cavity and is connected to a hollow support shaft through a bearing. The other end of the hollow support shaft passes through the support frame and the machine body, extends into the rust removal chamber and is fixed to the rotating frame, and the hollow support shaft is connected to the support frame and the machine body through a bearing. The through-section is connected, the hollow support shaft is located in the rust removal chamber and is fixedly connected with three pipes with electric control valves at equal intervals along the circumferential direction, the pipes with electric control valves are connected to the hollow support shaft, three negative pressure chambers are opened at equal intervals along the circumferential direction inside the rotating frame, the other ends of the three pipes with electric control valves are fixedly connected to the rotating frame and are connected to the three negative pressure chambers, three placement grooves are opened at equal intervals along the circumferential direction on the outer wall of the rotating frame, the three placement grooves are located at the bottom of the inlet and outlet grooves in turn during the rotating conveying process, and form a complete inlet and outlet channel with the inlet and outlet sections of the inlet and outlet grooves, a number of adsorption ports connected to the negative pressure chambers at corresponding positions are opened at equal intervals on the rotating frame at the bottom of the placement grooves, the first air pump, the electric control valve and the pipes with electric control valves are electrically connected to the programmable controller.

[0009] Furthermore, the clamping mechanism includes two movable frames of a U-shaped structure arranged on both sides of the rotating frame inside the rust removal chamber and a movable groove opened in the body and connected to the rust removal chamber, one of the outer walls of the movable frame is fixedly connected to a first motor, a first double-headed screw is arranged inside the movable frame, one end of the first double-headed screw close to the first motor side is connected to the output end of the first motor through a coupling, and one end of the first double-headed screw away from the first motor side is connected to the inner wall of the movable frame through a bearing, the other end of the first double-headed screw penetrates the movable frame and extends to the other side where a first gear is fixedly connected, the first double-headed screw is connected to the through section of the movable frame through a bearing, and the first double-headed screw is located at There are two clamping frames connected to the movable frame through a transmission nut, and the two clamping frames are fixedly connected with clamping cylinders respectively close to the top of the side walls, and the two clamping cylinders are located on both sides of the rotating frame. A fixed shaft is fixedly connected to the inside of the movable groove, and a movable seat is movably connected to the fixed shaft through an open hole sleeve connection. Two connecting springs are elastically connected to the upper and lower ends of the movable seat and the movable groove outside the fixed shaft, and the movable seat is connected to the first driving shaft through a bearing on the side away from the fixed shaft. The other end of the first driving shaft is fixedly sleeved with a second gear, and the two first gears are connected with a first transmission toothed belt with meshing transmission on the outer shell of the second gear, and the first motor is electrically connected to the programmable controller.

[0010] Furthermore, the moving mechanism includes a second motor fixed to the outer wall of the machine body and a second double-headed screw arranged inside the rust removal chamber, one end of the second double-headed screw is connected to the output end of the second motor through a coupling, and the other end of the second double-headed screw is connected to the inner wall of the machine body through a bearing, and the two moving frames are connected to the second double-headed screw through a transmission nut, and the second motor is electrically connected to the programmable controller.

[0011] Furthermore, the rust removal mechanism includes a driving box fixedly connected to the outer wall of the machine body and four U-shaped support seats fixedly connected to the four corners of the wall of the rust removal chamber and located on the sides away from each other of the two moving frames. The driving box is fixedly connected to a third motor away from the side wall of the machine body, and two second driving shafts are arranged inside the driving box. One end of the second driving shaft close to the third motor side is connected to the output end of the third motor through a coupling, and one end of the second driving shaft away from the third motor side is connected to the inner wall of the driving box through a bearing. A third gear is fixedly sleeved on the second driving shaft located in the driving box, and two outer sleeves of the third gears are meshed with second transmission toothed belts. The other end of the second driving shaft passes through the machine body and two support seats on the same side and is connected to the inner wall of the machine body through bearings. The second driving shaft is connected to the body and the support seat through the bearing , the second driving shaft is located in the support seat and is fixedly sleeved with a fourth gear, the support seat is symmetrically fixed with two sliding blocks near the side wall of the opening, an arc frame is arranged between the two sliding blocks, the arc frame is symmetrically provided with two sliding grooves, the two sliding blocks on the support seat respectively extend into the two sliding grooves on the arc frame to realize the movement between the arc frame and the support seat, the arc frame is fixed with an arc rack near the side wall of the fourth gear, the arc rack is meshed with the fourth gear, the second driving shaft drives the fourth gear to rotate and drives the arc rack to drive the arc frame to rotate along the tubular metal workpiece, two scrapers are fixedly connected between the side walls of the two arc frames on the same side of the second driving shaft away from the arc rack, the scrapers contact the surface of the tubular metal workpiece to scrape and remove surface rust, and the third motor is electrically connected to the programmable controller.

[0012] Furthermore, the negative pressure adsorption debris removal mechanism includes a plurality of equally spaced debris adsorption heads fixed to the wall of the rust removal chamber and located between four support seats, two debris storage boxes fixed to the outer wall of the body and connected to the plurality of debris adsorption heads on the same side, and a second air pump fixed to the outer wall of the body, a filter screen is fixed to one side of the plurality of debris adsorption heads on the same side inside the debris storage box, a box cover is provided at the top of the debris storage box, a second connecting shaft is rotatably connected between the box cover and one end of the debris storage box, a debris adsorption pipe is fixed to the air inlet end of the second air pump, the other end of the debris adsorption pipe is two interfaces which are respectively fixed to and connected to the two debris storage boxes, and the second air pump is electrically connected to the programmable controller.

[0013] Furthermore, the conveying mechanism includes a fourth motor fixedly connected to the outer wall of the support frame away from the machine body side and two third drive shafts arranged inside the support frame, one end of the third drive shaft close to the fourth motor side is connected to the output end of the fourth motor through a coupling, the other end of the third drive shaft close to the fourth motor side penetrates the support frame and extends into the drive cavity, the third drive shaft is connected to the through section of the support frame through a bearing, and both ends of the third drive shaft away from the fourth motor side are connected to the inner wall of the support frame through bearings, a transmission gear roller is fixedly sleeved on the outside of the third drive shaft, and a third transmission toothed belt with a meshing transmission connection is outerly connected to the two transmission gear rollers, and the fourth motor is electrically connected to the programmable controller.

[0014] Furthermore, the linkage mechanism includes a fifth gear fixedly sleeved on the third drive shaft near the fourth motor side and extending to the shaft inside the drive cavity, and a sixth gear fixedly sleeved on the hollow support shaft and located on the shaft inside the drive cavity, and the fifth gear and the sixth gear are outerly engaged with a fourth transmission toothed belt in meshing transmission connection.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The machine body of the present invention is provided with a workpiece inlet and outlet mechanism, an inlet and outlet groove, a rust removal chamber, a negative pressure adsorption rotating conveying mechanism, a clamping mechanism, a moving mechanism, a rust removal mechanism and a conveying mechanism, which can automatically and continuously feed in tubular metal workpieces to be derusted and automatically and continuously remove tubular metal workpieces after secondary rust removal, without manual participation in the whole process, saving time and labor, and improving the rust removal efficiency of the device; at the same time, the device performs two rust removals, which can improve the rust removal effect of the device; at the same time, a negative pressure adsorption debris removal mechanism is provided on the machine body, which can clean up debris generated in the two rust removal processes, reducing manual labor intensity; at the same time, an auxiliary cleaning port, a first connecting shaft and an auxiliary cleaning door are provided on the machine body, which can clean up debris that is not completely removed by the negative pressure adsorption debris removal mechanism, play an auxiliary cleaning role, and improve the cleaning effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of the present invention; Figure 2 It is a partial vertical cross-sectional view of the present invention; Figure 3 It is a partial vertical cross-sectional view from another perspective of the present invention; Figure 4 It is a partial vertical cross-sectional view from another perspective of the present invention; Figure 5 It is a structural schematic diagram of the negative pressure adsorption rotating conveying mechanism of the present invention; Figure 6 For the present invention Figure 5 Vertical section at A in the middle; Figure 7 It is a structural schematic diagram of the clamping mechanism and the moving mechanism of the present invention; Figure 8It is a structural schematic diagram of the rust removal mechanism of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle; Fig.10 It is a structural schematic diagram of the negative pressure adsorption debris removal mechanism of the present invention; In the figure: 1, machine body; 2, inlet and outlet slot; 3, rust removal chamber; 4, programmable controller; 5, auxiliary cleaning port; 6, auxiliary cleaning door; 7, first connecting shaft; 101, electric cylinder; 102, parts storage box; 103, parts outlet; 104, push cylinder; 201, hollow support shaft; 202, driving chamber; 203, support frame; 204, rotating frame; 205, first air pump; 206, connecting pipeline; 207, electric control valve; 208, pipeline with electric control valve; 209, adsorption port; 210, placement slot; 211, negative pressure chamber; 301, clamping frame; 302, moving frame; 303, first motor; 304, first gear; 305, fixed shaft; 306, movable seat; 307, connecting spring; 308, movable groove; 309, second gear; 310, first driving shaft; 311, first transmission toothed belt; 312, clamping cylinder; 313, first double-headed screw; 401, second motor; 402, second double-headed screw; 501, support base; 502, second drive shaft; 503, third motor; 504, second transmission belt; 505, drive box; 506, third gear; 507, arc frame; 508, arc rack; 509, scraper; 510, fourth gear; 511, sliding block; 512, sliding groove; 601, debris adsorption head; 602, debris storage box; 603, second connecting shaft; 604, box cover; 605, second air pump; 606, filter screen; 607, debris adsorption pipeline; 701, third driving shaft; 702, fourth motor; 703, third transmission toothed belt; 704, transmission toothed roller; 801, fifth gear; 802, fourth transmission toothed belt; 803, sixth gear. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] A rust removal device for metal workpieces, comprising: The machine body 1 has a U-shaped inlet and outlet groove 2 at the top, the outlet section of the inlet and outlet groove 2 gradually tilts downward from the side close to the inlet section to the side far away from the inlet section, the inside of the machine body 1 has a rust removal chamber 3 connected with the inlet and outlet groove 2, and the side wall of the machine body 1 has an auxiliary cleaning port 5 connected with the rust removal chamber 3; The in-and-out mechanism is arranged on the side wall of the machine body 1 near the inlet section of the in-and-out slot 2, and is used to push the tubular metal workpiece into the in-and-out slot 2 through the inlet of the in-and-out slot 2 and to push the tubular metal workpiece into the in-and-out slot 2 through the outlet of the in-and-out slot 2; The negative pressure adsorption rotary conveying mechanism is arranged inside the rust removal chamber 3 and below the inlet and outlet slot 2, and is used to receive the tubular metal workpiece pushed into the inlet and outlet slot 2 by the inlet and outlet mechanism, and to negatively adsorb the tubular metal workpiece and rotary convey it; The clamping mechanisms are respectively arranged inside the rust removal chamber 3 on both sides of the negative pressure adsorption rotary conveying mechanism, and are used to clamp the tubular metal workpiece conveyed by the negative pressure adsorption rotary conveying mechanism; The moving mechanism is arranged inside the rust removal chamber 3 and between the machine body 1 and the two clamping mechanisms, and is used to move the two clamping mechanisms to the rust removal area inside the rust removal chamber 3 and to move the two clamping mechanisms to the initial position; The rust removal mechanism is arranged inside the rust removal chamber 3 and on a side where the two clamping mechanisms are away from each other, and is used to remove rust from the tubular metal workpiece; A negative pressure adsorption debris removal mechanism is arranged inside the rust removal chamber 3 on a side away from the two rust removal mechanisms, and is used for negative pressure adsorption removal of debris generated during the rust removal process of the tubular metal workpiece; A conveying mechanism is arranged on the side wall of the machine body 1 near the outlet section of the inlet and outlet groove 2, and is used to receive the tubular metal workpiece pushed out of the inlet and outlet groove 2 and convey it to the collection container; The linkage mechanism is arranged between the conveying mechanism and the negative pressure adsorption rotary conveying mechanism, and is used to make the negative pressure adsorption rotary conveying mechanism and the conveying mechanism linked to realize the rotary conveying function of the negative pressure adsorption rotary conveying mechanism; The programmable controller 4 is fixedly connected to the outer wall of the machine body 1 and is electrically connected to the in-and-out mechanism, the negative pressure adsorption rotating conveying mechanism, the clamping mechanism, the moving mechanism, the rust removal mechanism, the negative pressure adsorption debris removal mechanism and the conveying mechanism; The auxiliary cleaning door 6 is arranged inside the auxiliary cleaning port 5 , and a first connecting shaft 7 is rotatably connected between the top of the auxiliary cleaning door 6 and the top of the auxiliary cleaning port 5 .

[0019] In this embodiment, see the attached Figure 1-4 Before the device removes rust from the tubular metal workpiece, a plurality of tubular metal workpieces to be removed from rust are placed in the inlet and outlet mechanism; When the device is removing rust from a tubular metal workpiece, the in-and-out mechanism pushes the tubular metal workpiece to be removed rust at the bottom of the in-and-out mechanism through the inlet of the in-and-out slot 2 to the top of the negative pressure adsorption rotating conveying mechanism; The negative pressure adsorption rotating conveying mechanism negatively adsorbs the tubular metal workpiece to be derusted at the top and rotates it to the middle of one side; The clamping mechanism clamps the tubular metal workpiece to be derusted in the middle of one side; The negative pressure adsorption rotating conveying mechanism releases the negative pressure adsorption state, and the moving mechanism moves the clamping mechanism to drive the tubular metal workpiece to be derusted in the middle of one side to move to the primary derusting area; The rust removal mechanism performs rust removal on the tubular metal workpiece to be rusted in the middle of one side; The moving mechanism is driven in reverse to move the clamping mechanism, driving the tubular metal workpiece to be derusted in the middle of one side to move to the initial position, that is, the negative pressure adsorption rotating conveying mechanism; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and resetting process, the in-and-out mechanism pushes the tubular metal workpiece to be rust-removed at the bottom of the in-and-out mechanism through the inlet of the in-and-out slot 2 to the top of the negative pressure adsorption rotary conveying mechanism; The negative pressure adsorption rotating conveying mechanism negatively adsorbs the tubular metal workpiece after rust removal in the middle of one side and the tubular metal workpiece to be rust removed at the top, and rotates and conveys them to the bottom of the other side and the middle of one side; The clamping mechanism clamps the tubular metal workpiece that has been derusted once at the bottom of the other side and the tubular metal workpiece to be derusted in the middle of one side; The negative pressure adsorption rotating conveying mechanism releases the negative pressure adsorption state, and the moving mechanism moves the clamping mechanism to drive the tubular metal workpiece after primary rust removal at the bottom of the other side and the tubular metal workpiece to be rusted in the middle of one side to move to the secondary rust removal area and the primary rust removal area respectively; The rust removal mechanism performs secondary rust removal on the tubular metal workpiece at the bottom of the other side that has been rusted once, and performs primary rust removal on the tubular metal workpiece to be rusted in the middle of one side; The moving mechanism drives in reverse, moves the clamping mechanism, and drives the tubular metal workpiece after secondary rust removal at the bottom of the other side and the tubular metal workpiece after primary rust removal in the middle of one side to move to the initial position, that is, the negative pressure adsorption rotating conveying mechanism; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and resetting process, the in-and-out mechanism pushes the tubular metal workpiece to be rust-removed at the bottom of the in-and-out mechanism through the inlet of the in-and-out slot 2 to the top of the negative pressure adsorption rotary conveying mechanism; The negative pressure adsorption rotating conveying mechanism negatively adsorbs the tubular metal workpiece after secondary rust removal at the bottom of the other side, the tubular metal workpiece after primary rust removal in the middle of one side, and the tubular metal workpiece to be rust removed at the top, and rotates and conveys them to the top, the bottom of the other side, and the middle of one side; The clamping mechanism clamps the tubular metal workpiece that has been derusted once at the bottom of the other side and the tubular metal workpiece to be derusted in the middle of one side; The negative pressure adsorption rotating conveying mechanism releases the negative pressure adsorption state, and the moving mechanism moves the clamping mechanism to drive the tubular metal workpiece after primary rust removal at the bottom of the other side and the tubular metal workpiece to be rusted in the middle of one side to move to the secondary rust removal area and the primary rust removal area respectively; The rust removal mechanism performs secondary rust removal on the tubular metal workpiece at the bottom of the other side that has been rusted once, and performs primary rust removal on the tubular metal workpiece to be rusted in the middle of one side; The moving mechanism drives in reverse, moves the clamping mechanism, and drives the tubular metal workpiece after secondary rust removal at the bottom of the other side and the tubular metal workpiece after primary rust removal in the middle of one side to move to the initial position, that is, the negative pressure adsorption rotating conveying mechanism; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and reset process, the in-and-out mechanism pushes the tubular metal workpiece to be rusted at the bottom of the in-and-out mechanism through the inlet of the in-and-out slot 2 to the top of the negative pressure adsorption rotary conveying mechanism, and the tubular metal workpiece to be rusted pushed to the top of the negative pressure adsorption rotary conveying mechanism pushes the tubular metal workpiece after secondary rust removal to the outlet section of the in-and-out slot 2, and the tubular metal workpiece after secondary rust removal falls onto the conveying mechanism along the inclined arc of the outlet section of the in-and-out slot 2; The conveying mechanism conveys the falling tubular metal workpiece after secondary rust removal into a collection container; When the device is removing rust from tubular metal workpieces, the negative pressure adsorption debris removal mechanism removes the debris generated during the primary and secondary rust removal processes by negative pressure adsorption; The device can also open the auxiliary cleaning port 5 by flipping the auxiliary cleaning door 6 along the first connecting shaft 7 to clean the debris that has not been completely cleaned in the rust removal chamber 3 . Example

[0020] The in-and-out mechanism includes an L-shaped storage box 102 fixedly connected to the side wall of the machine body 1 near the inlet section of the inlet and outlet slot 2. The vertical section of the storage box 102 stores tubular metal workpieces. The storage box 102 is fixedly connected to the side wall away from the machine body 1 with an electric cylinder 101. The output end of the electric cylinder 101 extends to the inside of the storage box 102 and is fixedly connected to a push cylinder 104. The push cylinder 104 has the same volume as the tubular metal workpiece. The push cylinder 104 is stored in the horizontal section of the storage box 102. When the push cylinder 104 is stored in the horizontal section of the storage box 102, it does not affect the tubular metal workpiece in the vertical section of the storage box 102. As the metal workpiece falls, an outlet 103 connecting the storage box 102 and the inlet section of the inlet and outlet slot 2 is opened near the side wall of the machine body 1. The push cylinder 104 pushes the tubular metal workpiece out of the storage box 102 through the outlet 103 through the push of the electric cylinder 101. When the push cylinder 104 is pushed to the limit, the tubular metal workpiece is located in the inlet and outlet slot 2, and the push cylinder 104 does not leave the area in the vertical section of the storage box 102, so as to avoid the falling of the tubular metal workpiece affecting the resetting of the push cylinder 104. The electric cylinder 101 is electrically connected to the programmable controller 4.

[0021] In this embodiment, see the attached Figure 4 The feeding and discharging mechanism is controlled by the programmable controller 4 to start the electric cylinder 101, the electric cylinder 101 drives the output end to extend, the output end of the electric cylinder 101 drives the push cylinder 104 to move, and the push cylinder 104 drives the tubular metal workpiece to be derusted to move, so that the tubular metal workpiece to be derusted is discharged through the outlet 103 to achieve feeding; the tubular metal workpiece to be derusted is pushed out by the tubular metal workpiece that has been derusted twice to achieve discharging.

[0022] As a further implementation method of this embodiment, the negative pressure adsorption rotating conveying mechanism includes a support frame 203 with a U-shaped structure fixedly connected to the side wall of the outlet section of the body 1 near the inlet and outlet groove 2, and a rotating frame 204 arranged inside the rust removal chamber 3 and below the inlet and outlet groove 2. The support frame 203 is fixedly connected to a first air pump 205 near the inner wall of the side of the body 1, and the air inlet end of the first air pump 205 is fixedly connected to a connecting pipe 206 with a T-shaped structure. The other two ends of the connecting pipe 206 are respectively fixedly connected to an electric control valve 207 and fixed to the support frame 203. A driving chamber 202 connected to the connecting pipe 206 is opened inside the support frame 203 near the side of the body 1. The connecting pipe 206 extends to the inner end of the driving chamber 202 and is connected to a hollow support shaft 201 through a bearing. The other end of the hollow support shaft 201 passes through the support frame 203 and the body 1, extends to the rust removal chamber 3 and is fixed to the rotating frame 204, and the hollow support shaft 201 is connected to the support frame 203 through a bearing. The frame 203 is connected to the through section of the machine body 1, the hollow support shaft 201 is located in the rust removal chamber 3 and is fixedly connected with three pipes 208 with electric control valves at equal intervals along the circumferential direction, the pipes 208 with electric control valves are communicated with the hollow support shaft 201, three negative pressure chambers 211 are opened at equal intervals along the circumferential direction inside the rotating frame 204, the other ends of the three pipes 208 with electric control valves are fixedly connected to the rotating frame 204 and are communicated with the three negative pressure chambers 211, three placement grooves 210 are opened at equal intervals along the circumferential direction on the outer wall of the rotating frame 204, the three placement grooves 210 are located at the bottom of the inlet and outlet groove 2 in turn during the rotating conveying process, and form a complete inlet and outlet channel with the inlet and outlet sections of the inlet and outlet groove 2, a number of adsorption ports 209 connected with the negative pressure chambers 211 at corresponding positions are opened at equal intervals on the rotating frame 204 at the bottom of the placement grooves 210, the first air pump 205, the electric control valve 207 and the pipes 208 with electric control valves are electrically connected to the programmable controller 4.

[0023] In this embodiment, see the attached Figure 2-6 The negative pressure adsorption rotating conveying mechanism is controlled by the programmable controller 4 to start the first air pump 205, and the first air pump 205 draws air to make the connecting pipe 206 and the hollow support shaft 201 present a negative pressure state. The programmable controller 4 controls the electric-controlled valve of the corresponding electric-controlled valve pipe 208 to open, and the corresponding electric-controlled valve pipe 208, the negative pressure chamber 211 and several adsorption ports 209 are in a negative pressure state through the hollow support shaft 201 to achieve negative pressure adsorption; the programmable controller 4 controls the electric-controlled valve 207 to open to release the negative pressure adsorption state; the rotating frame 204 is driven by the rotating hollow support shaft 201 to rotate to achieve rotary conveying, wherein the rotation principle of the hollow support shaft 201 is described below.

[0024] As a further implementation of this embodiment, the clamping mechanism includes two movable frames 302 of a U-shaped structure arranged on both sides of the rotating frame 204 inside the rust removal chamber 3 and a movable groove 308 opened in the body 1 and connected to the rust removal chamber 3. The outer wall of one movable frame 302 is fixedly connected to the first motor 303, and a first double-headed screw 313 is arranged inside the movable frame 302. One end of the first double-headed screw 313 close to the first motor 303 is connected to the output end of the first motor 303 through a coupling, and one end of the first double-headed screw 313 away from the first motor 303 is connected to the inner wall of the movable frame 302 through a bearing. The other end of the first double-headed screw 313 penetrates the movable frame 302 and extends to the other side where the first gear 304 is fixedly connected. The first double-headed screw 313 is connected to the through section of the movable frame 302 through a bearing. Two clamping frames 301 are located in the movable frame 302 and are connected by transmission nuts. The two clamping frames 301 are fixedly connected with clamping cylinders 312 on the top of the side walls close to each other. The two clamping cylinders 312 are located on both sides of the rotating frame 204. A fixed shaft 305 is fixed inside the movable groove 308. A movable seat 306 is movably connected to the fixed shaft 305 through an open hole sleeve connection. Two connecting springs 307 are elastically connected to the upper and lower ends of the movable seat 306 and the movable groove 308 outside the fixed shaft 305. The movable seat 306 is connected to a first driving shaft 310 through a bearing on the side away from the fixed shaft 305. The other end of the first driving shaft 310 is fixedly sleeved with a second gear 309. The two first gears 304 and the second gear 309 are outer-mounted with a first transmission toothed belt 311 for meshing transmission. The first motor 303 is electrically connected to the programmable controller 4.

[0025] In this embodiment, see the attached Figure 3 , 4 and 7. The clamping mechanism is controlled by the programmable controller 4 to start the first motor 303, the first motor 303 drives the output end to rotate, the output end of the first motor 303 drives the connected first double-headed screw 313 to rotate, the connected first double-headed screw 313 drives the connected first gear 304 to rotate, the connected first gear 304 drives the first transmission belt 311 connected in meshing transmission to rotate, the first transmission belt 311 drives the meshing connected second gear 309 and another first gear 304 to rotate, the other first gear 304 drives the connected first double-headed screw 313 to rotate, during the rotation of the two first double-headed screws 313, the four clamping frames 301 move on the two first double-headed screws 313 in a direction close to each other, the four clamping frames 301 drive the four clamping cylinders 312 to move in the same direction to achieve clamping; the programmable controller 4 controls the first motor 303 to drive in reverse to achieve loosening.

[0026] As a further implementation of this embodiment, the moving mechanism includes a second motor 401 fixedly connected to the outer wall of the body 1 and a second double-headed screw 402 arranged inside the rust removal chamber 3, one end of the second double-headed screw 402 is connected to the output end of the second motor 401 through a coupling, and the other end of the second double-headed screw 402 is connected to the inner wall of the body 1 through a bearing, the two moving frames 302 are connected to the second double-headed screw 402 through a transmission nut, and the second motor 401 is electrically connected to the programmable controller 4.

[0027] In this embodiment, see the attached Figure 3 , 4 and 7, the moving mechanism is controlled by the programmable controller 4 to start the second motor 401, the second motor 401 drives the output end to rotate, and the output end of the second motor 401 drives the second double-headed screw 402 to rotate. During the rotation of the second double-headed screw 402, the two moving frames 302 move towards each other on the second double-headed screw 402 to realize the feeding movement; the programmable controller 4 controls the reverse drive of the second motor 401 to realize the reset movement.

[0028] As a further implementation of this embodiment, the rust removal mechanism includes a driving box 505 fixedly connected to the outer wall of the body 1 and four support seats 501 of a U-shaped structure fixedly connected to the four corners of the wall of the rust removal chamber 3 and located on the side away from the two moving frames 302. The driving box 505 is fixedly connected to a third motor 503 away from the side wall of the body 1. Two second driving shafts 502 are arranged inside the driving box 505. One end of the second driving shaft 502 close to the third motor 503 is connected to the output end of the third motor 503 through a coupling, and the third motor 503 is away from the third motor. One end of the second driving shaft 502 on the 503 side is connected to the inner wall of the driving box 505 through a bearing, and the second driving shaft 502 is located in the driving box 505 and is fixedly sleeved with a third gear 506, and the outer sleeves of the two third gears 506 are connected with a second transmission toothed belt 504 for meshing transmission, and the other end of the second driving shaft 502 passes through the machine body 1 and the two support seats 501 on the same side and is connected to the inner wall of the machine body 1 through a bearing, and the second driving shaft 502 is connected to the machine body 1 and the support seat 501 through a bearing, and the second driving shaft 502 is located on the support seat A fourth gear 510 is fixedly sleeved in the support seat 501, two sliding blocks 511 are symmetrically fixedly connected to the side wall of the opening of the support seat 501, an arc frame 507 is arranged between the two sliding blocks 511, and two sliding grooves 512 are symmetrically arranged on the arc frame 507. The two sliding blocks 511 on the support seat 501 extend into the two sliding grooves 512 on the arc frame 507 respectively to realize the movement between the arc frame 507 and the support seat 501, and an arc rack 508 is fixedly connected to the side wall of the arc frame 507 near the fourth gear 510, and the arc rack 508 is fixedly connected to the side wall of the arc frame 507 near the fourth gear 510. 08 is meshed and connected with the fourth gear 510, the second driving shaft 502 drives the fourth gear 510 to rotate and drive the arc rack 508 to drive the arc frame 507 to rotate along the tubular metal workpiece, the arc frame 507 rotates forward and reversely to cover the entire outer wall of the tubular metal workpiece, and two scrapers 509 are fixedly connected between the side walls of the two arc frames 507 on the same side of the second driving shaft 502 away from the arc rack 508. The scrapers 509 contact the surface of the tubular metal workpiece to scrape and remove the surface rust, and the third motor 503 is electrically connected to the programmable controller 4.

[0029] In this embodiment, see the attached Figure 3 , 4, 8 and 9, the rust removal mechanism is controlled by the programmable controller 4 to start the third motor 503, the third motor 503 drives the output end to rotate, the output end of the third motor 503 drives the connected second drive shaft 502 to rotate, the connected second drive shaft 502 drives the connected third gear 506 to rotate, the connected third gear 506 drives the second transmission toothed belt 504 engaged in meshing transmission to rotate, the second transmission toothed belt 504 drives another third gear 506 engaged in meshing transmission to rotate, the other third gear 506 drives the connected second drive shaft 502 to rotate, and the two rotating second drive shafts 502 respectively drive The two fourth gears 510 that are dynamically connected rotate, and during the rotation of the four fourth gears 510, they respectively drive the meshing arc racks 508 to rotate, and the four arc racks 508 respectively drive the connected arc frame 507 to rotate, wherein the rotation of the arc frame 507 is achieved by sliding the two sliding grooves 512 of the arc frame 507 on the two sliding blocks 511 of the support seat 501, and the four arc frames 507 respectively drive the connected four scrapers 509 to rotate to achieve rust removal on half side, and then the programmable controller 4 controls the third motor 503 to drive in reverse to complete the rust removal on the other half side, thereby achieving rust removal.

[0030] As a further implementation method of this embodiment, the negative pressure adsorption debris removal mechanism includes a plurality of equally spaced debris adsorption heads 601 fixed to the wall of the rust removal chamber 3 and located between four support seats 501, two debris storage boxes 602 fixed to the outer wall of the body 1 and connected to the plurality of debris adsorption heads 601 on the same side, and a second air pump 605 fixed to the outer wall of the body 1, a filter screen 606 is fixed to one side of the plurality of debris adsorption heads 601 on the same side inside the debris storage box 602, a box cover 604 is provided at the top of the debris storage box 602, a second connecting shaft 603 is rotatably connected between the box cover 604 and one end of the debris storage box 602, a debris adsorption pipe 607 is fixed to the air inlet end of the second air pump 605, the other end of the debris adsorption pipe 607 is two interfaces and are respectively fixed and connected to the two debris storage boxes 602, and the second air pump 605 is electrically connected to the programmable controller 4.

[0031] In this embodiment, see the attached Figure 3 , 4 10, the negative pressure adsorption debris removal mechanism is controlled by the programmable controller 4 to start the second air pump 605, and the second air pump 605 sucks air to make the debris adsorption pipeline 607, the two debris storage boxes 602 and the plurality of debris adsorption heads 601 present a negative pressure state, and the debris generated during the primary rust removal and the secondary rust removal process is sucked into the two debris storage boxes 602 through the plurality of debris adsorption heads 601; when cleaning, the box cover 604 is flipped along the second connecting shaft 603, and the top opening of the debris storage box 602 is opened for cleaning.

[0032] As a further implementation of this embodiment, the conveying mechanism includes a fourth motor 702 fixedly connected to the outer wall of the support frame 203 on the side away from the body 1 and two third drive shafts 701 arranged inside the support frame 203, one end of the third drive shaft 701 close to the fourth motor 702 is connected to the output end of the fourth motor 702 through a coupling, the other end of the third drive shaft 701 close to the fourth motor 702 passes through the support frame 203 and extends into the drive cavity 202, the third drive shaft 701 is connected to the through section of the support frame 203 through a bearing, and both ends of the third drive shaft 701 away from the fourth motor 702 are connected to the inner wall of the support frame 203 through bearings, the third drive shaft 701 is fixedly sleeved with a transmission gear roller 704 on the outside, and the two transmission gear rollers 704 are outer-mounted with a third transmission toothed belt 703 with meshing transmission connection, the length of the third transmission toothed belt 703 meets the situation that the tubular metal workpiece after secondary rust removal will not fall out of the third transmission toothed belt 703 after sliding, and the fourth motor 702 is electrically connected to the programmable controller 4.

[0033] In this embodiment, see the attached Figure 1-4 The conveying mechanism is controlled by the programmable controller 4 to start the fourth motor 702, the fourth motor 702 drives the output end to rotate, the output end of the fourth motor 702 drives the connected third drive shaft 701 to rotate, the connected third drive shaft 701 drives the connected transmission gear roller 704 to rotate, the connected transmission gear roller 704 drives the third transmission toothed belt 703 connected in meshing transmission to rotate, the third transmission toothed belt 703 drives another transmission toothed roller 704 connected in meshing to rotate, the two transmission toothed rollers 704 drive the third transmission toothed belt 703 connected in meshing to rotate, to realize conveying, wherein the driving time of the fourth motor 702 is intermittent, coordinated with the rotation of the rotating frame 204.

[0034] As a further implementation of this embodiment, the linkage mechanism includes a fifth gear 801 fixedly sleeved on the third drive shaft 701 close to the fourth motor 702 side and extending to the inner shaft of the drive chamber 202, and a sixth gear 803 fixedly sleeved on the hollow support shaft 201 and located on the inner shaft of the drive chamber 202. The fifth gear 801 and the sixth gear 803 are outerly engaged with a fourth transmission toothed belt 802 in meshing transmission connection.

[0035] In this embodiment, see the attached Figure 2-4 The rotating third drive shaft 701 drives the fifth gear 801 to rotate, the fifth gear 801 drives the fourth transmission belt 802 in meshing transmission connection to rotate, the fourth transmission belt 802 drives the meshing connected sixth gear 803 to rotate, and the sixth gear 803 drives the hollow support shaft 201 to rotate, thereby realizing linkage.

[0036] Before the device removes rust from a tubular metal workpiece, a plurality of tubular metal workpieces to be removed are stacked in sequence in the vertical section area of ​​the storage box 102. At this time, since the push cylinder 104 is located in the horizontal section area of ​​the storage box 102, it does not affect the falling of the tubular metal workpieces to be removed in the vertical section area of ​​the storage box 102. Therefore, the tubular metal workpiece to be removed at the bottom falls to the overlapping position of the vertical section area and the horizontal section area of ​​the storage box 102. When the device is removing rust from a tubular metal workpiece, the programmable controller 4 controls the electric cylinder 101 to start, the electric cylinder 101 drives the output end to extend, the output end of the electric cylinder 101 drives the push cylinder 104 to move toward the tubular metal workpiece to be removed, and the push cylinder 104 drives the tubular metal workpiece to be removed to move in the same direction until the set driving time of the electric cylinder 101 is reached, and the electric cylinder 101 stops driving. At this time, the tubular metal workpiece to be removed passes through the outlet 103 and the inlet of the inlet and outlet slot 2 into the placement slot 209 at the top of the rotating frame 204. After the workpiece is fed, the push cylinder 104 has not completely left the vertical section area of ​​the storage box 102, and the upper tubular metal workpiece will not fall. The electric cylinder 101 drives the output end to reset, and the output end of the electric cylinder 101 drives the push cylinder 104 to reset. At this time, the push cylinder 104 is located in the horizontal section area of ​​the storage box 102, and does not affect the fall of the tubular metal workpiece to be derusted in the vertical section area of ​​the storage box 102. Therefore, the tubular metal workpiece to be derusted at the bottom falls to the overlap position of the vertical section area and the horizontal section area of ​​the storage box 102, and the automatic drop is completed, waiting for the next workpiece to be fed; The first air pump 205 is started by controlling the programmable controller 4. The first air pump 205 draws air to make the connecting pipe 206 and the hollow support shaft 201 present a negative pressure state. The programmable controller 4 controls the electric-controlled valve of the top electric-controlled valve pipe 208 to open. At this time, due to the negative pressure state in the hollow support shaft 201, the top electric-controlled valve pipe 208, the top negative pressure chamber 211 and the top several adsorption ports 209 present a negative pressure state. The negative pressure adsorbs the tubular metal workpiece to be derusted in the top placement slot 209. At the same time, the fourth motor 702 is started by controlling the programmable controller 4. The fourth motor 702 drives the output end to rotate. The output end of the fourth motor 702 drives the connected third drive shaft 701 to rotate. The connected third drive shaft 701 drives The fifth gear 801 rotates, and the fifth gear 801 drives the fourth transmission toothed belt 802 in meshing transmission connection to rotate, and the fourth transmission toothed belt 802 drives the sixth gear 803 in meshing connection to rotate, and the sixth gear 803 drives the hollow support shaft 201 to rotate, and the hollow support shaft 201 drives the rotating frame 204 to rotate, and the rotating frame 204 drives the tubular metal workpiece to be derusted in the uppermost placement slot 209 to rotate, until the set driving time of the fourth motor 702 is reached, and the fourth motor 702 stops driving. At this time, the tubular metal workpiece to be derusted in the uppermost placement slot 209 of the rotating frame 204 is rotated and transported to the middle of the two clamping cylinders 312 on one side, and the delivery is completed. The other placement slot 209 on the rotating frame 204 rotates to the uppermost position, forming a complete entry and exit channel with the inlet and outlet sections of the inlet and outlet slot 2; The first motor 303 is started by controlling the programmable controller 4, and the first motor 303 drives the output end to rotate, and the output end of the first motor 303 drives the connected first double-headed screw 313 to rotate, and the connected first double-headed screw 313 drives the connected first gear 304 to rotate, and the connected first gear 304 drives the first transmission toothed belt 311 of meshing transmission connection to rotate, and the first transmission toothed belt 311 drives the meshing second gear 309 and another first gear 304 to rotate, and the other first gear 304 drives the connected first double-headed screw 313 Rotate. During the rotation of the two first double-headed screws 313, the four clamping frames 301 move on the two first double-headed screws 313 in a direction close to each other, and the four clamping frames 301 drive the four clamping cylinders 312 to move in the same direction until the set driving time of the first motor 303 is reached, and the first motor 303 stops driving. At this time, the two clamping cylinders 312 on the same side of the tubular metal workpiece to be derusted extend into the tubular metal workpiece to be derusted, and the two clamping frames 301 on the same side of the tubular metal workpiece to be derusted clamp the tubular metal workpiece to be derusted, completing the clamping; The first air pump 205 is controlled to be closed by the programmable controller 4, and the electric control valve 207 is controlled to be opened. At this time, the negative pressure state in the connecting pipe 206, the hollow support shaft 201, the middle pipe with the electric control valve 208, the middle negative pressure chamber 211 and the middle plurality of adsorption ports 209 is released, and the negative pressure adsorption state of the tubular metal workpiece to be derusted in the middle placement slot 209 on one side is released. The second motor 401 is controlled to start by the programmable controller 4, and the second motor 401 drives the output end to rotate, and the output end of the second motor 401 drives the second double-headed screw 402 to rotate. During the rotation of the second double-headed screw 402, the two moving frames 302 move away from each other on the second double-headed screw 402, that is, move toward the rust removal area, and the two moving frames 302 drive the tubular metal workpiece to be derusted clamped by the two clamping frames 301 to move in the same direction until the set driving time of the second motor 401 is reached, and the second motor 401 stops driving. At this time, the tubular metal workpiece to be derusted contacts the two scrapers 509 in the middle of one side, and the delivery is completed; The third motor 503 is started by the programmable controller 4, and the third motor 503 drives the output end to rotate. The output end of the third motor 503 drives the connected second drive shaft 502 to rotate. The connected second drive shaft 502 drives the connected third gear 506 to rotate. The connected third gear 506 drives the second transmission toothed belt 504 connected in meshing transmission to rotate. The second transmission toothed belt 504 drives another meshing third gear 506 to rotate. The other third gear 506 drives the connected second drive shaft 502 to rotate. The two rotating second drive shafts 502 respectively drive the two connected fourth gears 510 to rotate. During the rotation of the four fourth gears 510, they respectively drive the meshing arc rack 508 to rotate. The four arc racks 508 are connected in meshing transmission. The rack 508 drives the connected arc frame 507 to rotate respectively, wherein the rotation of the arc frame 507 is realized by sliding the two sliding grooves 512 of the arc frame 507 on the two sliding blocks 511 of the support seat 501, and the four arc frames 507 drive the connected four scrapers 509 to rotate respectively, and the two scrapers 509 on the same side of the tubular metal workpiece to be derusted scrape and remove the rust on the half surface of the tubular metal workpiece to be derusted during the rotation process, until the set driving time of the third motor 503 is reached, the rust removal of half side is completed, and the third motor 503 is driven in reverse to remove the rust on the other half side, until the set driving time of the third motor 503 is reached, the rust removal of the other half side is completed, and the third motor 503 stops driving, and one rust removal is completed; The second motor 401 is controlled by the programmable controller 4 to drive in reverse, so that the tubular metal workpiece after the rust removal is returned to the middle placement groove 209 on one side; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and resetting process, the parts are sent to the uppermost placement slot 209 according to the above-mentioned method; The first air pump 205 is started and controlled by the programmable controller 4, and the electric-controlled valve 207 is closed and the electric-controlled valve of the uppermost electric-controlled valve pipeline 208 is opened. At this time, the negative pressure chamber 211 in the middle and uppermost of one side and the plurality of adsorption ports 209 are in a negative pressure state, and the negative pressure adsorbs the tubular metal workpiece after rust removal in the middle placement slot 209 of one side and the tubular metal workpiece to be rusted in the uppermost placement slot 209. At the same time, the fourth motor 702 is started and controlled by the programmable controller 4 to rotate and transport the tubular metal workpiece after rust removal in the middle placement slot 209 of one side and the tubular metal workpiece to be rusted in the uppermost placement slot 209 to be respectively conveyed to the lower two clamping cylinders 312 of the other side and the middle two clamping cylinders 312 of one side, and the delivery is completed. The other placement slot 209 on the rotating frame 204 is rotated to the uppermost position to form a complete entry and exit channel with the inlet and outlet sections of the entry and exit slot 2. The first motor 303 is started by controlling the programmable controller 4 to complete the clamping of the tubular metal workpiece at the bottom of the other side after the first rust removal and the tubular metal workpiece to be rust removed in the middle of one side; The programmable controller 4 controls the first air pump 205 to be closed, the electric control valve 207 to be opened, and the second motor 401 to be started, so as to complete the delivery of the tubular metal workpiece that has been rust-removed once at the bottom of the other side and the tubular metal workpiece to be rust-removed in the middle of one side; The third motor 503 is started by controlling the programmable controller 4 to complete the secondary rust removal of the tubular metal workpiece at the bottom of the other side after the primary rust removal and the primary rust removal of the tubular metal workpiece to be rusted in the middle of one side; The programmable controller 4 controls the second motor 401 to drive in reverse, so that the tubular metal workpiece after secondary rust removal returns to the bottom placement groove 209 on the other side and the tubular metal workpiece after primary rust removal returns to the middle placement groove 209 on one side for reset; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and resetting process, the parts are sent to the uppermost placement slot 209 according to the above-mentioned method; The first air pump 205 is controlled to start by the programmable controller 4, and the electric-controlled valve 207 is controlled to close, and the electric-controlled valve of the uppermost electric-controlled valve pipeline 208 is controlled to open. At this time, the negative pressure chamber 211 at the bottom of the other side, the middle of one side and the top and the plurality of adsorption ports 209 are in a negative pressure state, and the negative pressure adsorbs the tubular metal workpiece with secondary rust removal in the lowermost placement groove 209 on the other side, the tubular metal workpiece with primary rust removal in the middle placement groove 209 on one side and the tubular metal workpiece to be rust-removed in the uppermost placement groove 209. At the same time, the fourth motor 702 is controlled to start by the programmable controller 4 to rotate the tubular metal workpiece with secondary rust removal in the lowermost placement groove 209 on the other side to the top, forming a complete entry and exit channel with the inlet and outlet sections of the entry and exit groove 2, the tubular metal workpiece with primary rust removal in the middle placement groove 209 on one side is rotated to the space between the two clamping cylinders 312 at the bottom of the other side, and the tubular metal workpiece to be rust-removed in the uppermost placement groove 209 is rotated to the delivery space between the two clamping cylinders 312 in the middle of one side; The first motor 303 is started by controlling the programmable controller 4 to complete the clamping of the tubular metal workpiece at the bottom of the other side after the first rust removal and the tubular metal workpiece to be rust removed in the middle of one side; The programmable controller 4 controls the first air pump 205 to be closed, the electric control valve 207 to be opened, and the second motor 401 to be started, so as to complete the delivery of the tubular metal workpiece that has been rust-removed once at the bottom of the other side and the tubular metal workpiece to be rust-removed in the middle of one side; The third motor 503 is started by controlling the programmable controller 4 to complete the secondary rust removal of the tubular metal workpiece at the bottom of the other side after the primary rust removal and the primary rust removal of the tubular metal workpiece to be rusted in the middle of one side; The programmable controller 4 controls the second motor 401 to drive in reverse, so that the tubular metal workpiece after secondary rust removal returns to the bottom placement groove 209 on the other side and the tubular metal workpiece after primary rust removal returns to the middle placement groove 209 on one side for reset; During the above-mentioned clamping, negative pressure adsorption state release, movement, rust removal and reset process, the workpiece is sent to the uppermost placement slot 209 according to the above-mentioned method, and the tubular metal workpiece to be rust-removed pushes the tubular metal workpiece after secondary rust removal in the uppermost placement slot 209 to the exit section of the inlet and outlet slot 2, and slides onto the third transmission toothed belt 703 along the inclined arc of the exit section of the inlet and outlet slot 2; The programmable controller 4 controls the first air pump 205 to start, controls the electric control valve 207 to close, and controls the second motor 401 to start. The rust removal of the remaining tubular metal workpieces to be rust-removed is completed according to the above method. During the rotation of the third drive shaft 701 driven by the fourth motor 702, the third drive shaft 701 drives the connected transmission gear roller 704 to rotate, and the connected transmission gear roller 704 drives the third transmission toothed belt 703 connected in meshing transmission to rotate, and the third transmission toothed belt 703 drives another transmission gear roller 704 connected in meshing transmission to rotate, and the two rotating transmission gear rollers 704 drive the third transmission toothed belt 703 to rotate, and the rotating third transmission toothed belt 703 transports the tubular metal workpiece after the secondary rust removal that slides to the top into the collection container; The remaining tubular metal workpieces to be derusted are derusted according to the above method until all the rust removal is completed; During the rust removal process of the tubular metal workpiece, the programmable controller 4 controls the second air pump 605 to start, and the second air pump 605 sucks air to make the debris adsorption pipeline 607, the two debris storage boxes 602 and the plurality of debris adsorption heads 601 present a negative pressure state, and the debris generated during the primary rust removal and the secondary rust removal process is sucked into the two debris storage boxes 602 through the plurality of debris adsorption heads 601; When cleaning, the box cover 604 is turned over along the second connecting shaft 603 to open the top opening of the debris storage box 602 for cleaning; The auxiliary cleaning door 6 can also be turned over along the first connecting shaft 7 to open the auxiliary cleaning port 5 to clean the debris that has not been completely cleaned in the rust removal chamber 3 .

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rust removal device for metal workpieces, characterized in that: include: A machine body (1), wherein a U-shaped inlet and outlet groove (2) is provided at the top of the machine body (1), an outlet section of the inlet and outlet groove (2) gradually tilts downward from close to the inlet section to away from the inlet section, a rust removal chamber (3) is provided inside the machine body (1) and is communicated with the inlet and outlet groove (2), and an auxiliary cleaning port (5) is provided on a side wall of the machine body (1) and is communicated with the rust removal chamber (3); An inlet and outlet mechanism is arranged on a side wall of the machine body (1) close to an inlet section of the inlet and outlet groove (2), and is used to push a tubular metal workpiece into the inlet and outlet groove (2) through an inlet of the inlet and outlet groove (2), and to push the tubular metal workpiece out of the inlet and outlet groove (2) through an outlet of the inlet and outlet groove (2); A negative pressure adsorption rotary conveying mechanism is arranged inside the rust removal chamber (3) and below the inlet and outlet groove (2), and is used to receive the tubular metal workpiece pushed into the inlet and outlet groove (2) by the inlet and outlet mechanism, and to negatively adsorb the tubular metal workpiece and rotary convey it; The clamping mechanisms are respectively arranged inside the rust removal chamber (3) on both sides of the negative pressure adsorption rotary conveying mechanism, and are used to clamp the tubular metal workpiece conveyed by the negative pressure adsorption rotary conveying mechanism; A moving mechanism, arranged inside the rust removal chamber (3) and between the machine body (1) and the two clamping mechanisms, and used for moving the two clamping mechanisms to a rust removal area inside the rust removal chamber (3) and moving the two clamping mechanisms to an initial position; A rust removal mechanism is arranged inside the rust removal chamber (3) and on a side away from the two clamping mechanisms, and is used to remove rust from a tubular metal workpiece; A negative pressure adsorption debris removal mechanism is arranged inside the rust removal chamber (3) on a side away from the two rust removal mechanisms, and is used for negative pressure adsorption removal of debris generated during the rust removal process of the tubular metal workpiece; A conveying mechanism, arranged on a side wall of the machine body (1) close to an outlet section of the inlet and outlet groove (2), and used for receiving the tubular metal workpiece pushed out of the inlet and outlet groove (2) and conveying it to a collection container; The linkage mechanism is arranged between the conveying mechanism and the negative pressure adsorption rotary conveying mechanism, and is used to make the negative pressure adsorption rotary conveying mechanism and the conveying mechanism linked to realize the rotary conveying function of the negative pressure adsorption rotary conveying mechanism; A programmable controller (4) is fixedly connected to the outer wall of the machine body (1) and is electrically connected to the loading and unloading mechanism, the negative pressure adsorption rotating conveying mechanism, the clamping mechanism, the moving mechanism, the rust removal mechanism, the negative pressure adsorption debris removal mechanism and the conveying mechanism; The auxiliary cleaning door (6) is arranged inside the auxiliary cleaning port (5), and a first connecting shaft (7) is rotatably connected between the top end of the auxiliary cleaning door (6) and the top end of the auxiliary cleaning port (5).

2. A metal workpiece rust removal device according to claim 1, characterized in that: The in-and-out mechanism comprises an L-shaped storage box (102) fixedly connected to the side wall of the machine body (1) near the inlet section of the in-and-out slot (2); the vertical section of the storage box (102) stores tubular metal workpieces; the storage box (102) is fixedly connected to an electric cylinder (101) at the side wall away from the machine body (1); the output end of the electric cylinder (101) extends into the storage box (102) and is fixedly connected to a push cylinder (104); the push cylinder (104) has the same volume as the tubular metal workpiece; the horizontal section of the storage box (102) stores the push cylinder (104); when the push cylinder (104) is stored in the horizontal section of the storage box (102), it does not affect the vertical section of the storage box (102). The tubular metal workpiece falls. The storage box (102) is provided with an outlet (103) near the side wall of the machine body (1) and connected to the storage box (102) and the inlet section of the inlet and outlet groove (2). The push cylinder (104) pushes the tubular metal workpiece out of the storage box (102) through the outlet (103) through the push of the electric cylinder (101). When the push cylinder (104) is pushed to the limit, the tubular metal workpiece is located in the inlet and outlet groove (2), and the push cylinder (104) does not leave the area in the vertical section of the storage box (102), so as to prevent the tubular metal workpiece from falling and affecting the reset of the push cylinder (104). The electric cylinder (101) is electrically connected to the programmable controller (4).

3. A metal workpiece rust removal device according to claim 1, characterized in that: The negative pressure adsorption rotary conveying mechanism comprises a support frame (203) with a U-shaped structure fixedly connected to the side wall of the machine body (1) near the outlet section of the inlet and outlet groove (2), and a rotary frame (204) arranged inside the rust removal chamber (3) and below the inlet and outlet groove (2), wherein the support frame (203) is fixedly connected to a first air pump (205) near the inner wall of the machine body (1), the air inlet end of the first air pump (205) is fixedly connected to a connecting pipe (206) with a T-shaped structure, and the other two ends of the connecting pipe (206) are respectively fixedly connected to an electric control valve (207) and a The support frame (203) is fixedly connected to the support frame (203); a driving chamber (202) connected to a connecting pipe (206) is provided inside the support frame (203) near the machine body (1); the connecting pipe (206) extends to the inner end of the driving chamber (202) and is connected to a hollow supporting shaft (201) via a bearing; the other end of the hollow supporting shaft (201) passes through the support frame (203) and the machine body (1) and extends into the rust removal chamber (3) and is fixedly connected to the rotating frame (204); the hollow supporting shaft (201) is connected to the support frame (203) via a bearing. 3) and the through section of the machine body (1), the hollow support shaft (201) is located in the rust removal chamber (3) and is fixedly connected with three pipes (208) with electric control valves at equal intervals along the circumferential direction, the pipes (208) with electric control valves are communicated with the hollow support shaft (201), three negative pressure chambers (211) are opened at equal intervals along the circumferential direction inside the rotating frame (204), the other ends of the three pipes (208) with electric control valves are fixedly connected with the rotating frame (204) and are communicated with the three negative pressure chambers (211), and the outer wall of the rotating frame (204) is fixedly connected with the rotating frame (204) and is communicated with the three negative pressure chambers (211). Three placement grooves (210) are provided at equal intervals in the circumferential direction. The three placement grooves (210) are located at the bottom of the inlet and outlet groove (2) in turn during the rotational conveying process, and form a complete inlet and outlet channel with the inlet and outlet sections of the inlet and outlet groove (2). A plurality of adsorption ports (209) are provided at equal intervals at the bottom ends of the placement grooves (210) on the rotating frame (204), and are connected to negative pressure chambers (211) at corresponding positions. The first air pump (205), the electric control valve (207) and the pipeline with the electric control valve (208) are electrically connected to the programmable controller (4).

4. A metal workpiece rust removal device according to claim 3, characterized in that: The clamping mechanism comprises two movable frames (302) of a U-shaped structure arranged on both sides of the rotating frame (204) inside the rust removal chamber (3) and a movable groove (308) opened inside the machine body (1) and communicating with the rust removal chamber (3); a first motor (303) is fixedly connected to the outer wall of one of the movable frames (302); a first double-headed screw (313) is arranged inside the movable frame (302); one end of the first double-headed screw (313) close to the first motor (303) is connected to the first motor (303) by a coupling The shaft is connected to the output end of the first motor (303); one end of the first double-headed screw (313) on the side away from the first motor (303) is connected to the inner wall of the moving frame (302) through a bearing; the other end of the first double-headed screw (313) penetrates the moving frame (302) and extends to the other side where a first gear (304) is fixedly connected; the first double-headed screw (313) is connected to the through section of the moving frame (302) through a bearing; the first double-headed screw (313) is located inside the moving frame (302) and is Two clamping frames (301) are connected to each other through a transmission nut, and the two clamping frames (301) are fixedly connected to clamping cylinders (312) at the top of the side walls close to each other, and the two clamping cylinders (312) are located on both sides of the rotating frame (204). A fixed shaft (305) is fixedly connected inside the movable groove (308), and a movable seat (306) is movably connected to the fixed shaft (305) through an open hole sleeve connection. Two connecting springs (307) are elastically connected to the upper and lower ends of the movable seat (306) and the movable groove (308) outside the fixed shaft (305), respectively. A first driving shaft (310) is connected to the side of the movable seat (306) away from the fixed shaft (305) through a bearing, and a second gear (309) is fixedly sleeved at the other end of the first driving shaft (310). A first transmission toothed belt (311) for meshing transmission is connected to the outer surface of the two first gears (304) and the second gear (309), and the first motor (303) is electrically connected to the programmable controller (4).

5. A metal workpiece rust removal device according to claim 4, characterized in that: The moving mechanism comprises a second motor (401) fixedly connected to the outer wall of the machine body (1) and a second double-headed screw (402) arranged inside the rust removal chamber (3); one end of the second double-headed screw (402) is connected to the output end of the second motor (401) via a coupling; the other end of the second double-headed screw (402) is connected to the inner wall of the machine body (1) via a bearing; two moving frames (302) are connected to the second double-headed screw (402) via a transmission nut; and the second motor (401) is electrically connected to the programmable controller (4).

6. A rust removal device for metal workpieces according to claim 4, characterized in that: The rust removal mechanism comprises a drive box (505) fixedly connected to the outer wall of the machine body (1) and four support seats (501) of a U-shaped structure fixedly connected to the four corners of the wall of the rust removal chamber (3) and located on the sides away from each other of the two movable frames (302); the drive box (505) is fixedly connected to the side wall away from the machine body (1) with a third motor (503); two second drive shafts (502) are arranged inside the drive box (505); one end of the second drive shaft (502) on the side close to the third motor (503) is connected to the output end of the third motor (503) through a coupling; and the second drive shaft (502) on the side away from the third motor (503) is connected to the output end of the third motor (503) through a coupling. One end of the driving shaft (502) is connected to the inner wall of the driving box (505) through a bearing, a third gear (506) is fixedly sleeved on the second driving shaft (502) in the driving box (505), and two outer sleeves of the third gears (506) are connected to a second transmission toothed belt (504) for meshing transmission, and the other end of the second driving shaft (502) passes through the machine body (1) and two support seats (501) on the same side and is connected to the inner wall of the machine body (1) through a bearing, and the second driving shaft (502) is connected to the machine body (1) and the support seat (501) through a bearing, and the upper portion of the second driving shaft (502) is connected to the inner wall of the machine body (1) and the support seat (501). A fourth gear (510) is fixedly sleeved in the support seat (501), two sliding blocks (511) are symmetrically fixedly connected to the support seat (501) near the side wall of the opening, an arc frame (507) is arranged between the two sliding blocks (511), two sliding grooves (512) are symmetrically arranged on the arc frame (507), the two sliding blocks (511) on the support seat (501) respectively extend into the two sliding grooves (512) on the arc frame (507) to realize the movement between the arc frame (507) and the support seat (501), and the arc frame (507) is close to the fourth gear (510 ) side wall is fixedly connected with an arc-shaped rack (508), the arc-shaped rack (508) is meshingly connected with a fourth gear (510), the second driving shaft (502) drives the fourth gear (510) to rotate and drive the arc-shaped rack (508) to drive the arc-shaped frame (507) to rotate along the tubular metal workpiece, two scrapers (509) are fixedly connected between the side walls of the two arc-shaped frames (507) on the same side of the second driving shaft (502) away from the arc-shaped rack (508), the scrapers (509) contact the surface of the tubular metal workpiece to scrape and remove the surface rust, and the third motor (503) is electrically connected to the programmable controller (4).

7. A rust removal device for metal workpieces according to claim 6, characterized in that: The negative pressure adsorption debris removal mechanism comprises a plurality of equally spaced debris adsorption heads (601) fixedly connected to the wall of the rust removal chamber (3) and located between four support seats (501), two debris storage boxes (602) fixedly connected to the outer wall of the machine body (1) and in communication with the plurality of debris adsorption heads (601) on the same side, and a second air pump (605) fixedly connected to the outer wall of the machine body (1), wherein a filter is fixedly connected to one side of the plurality of debris adsorption heads (601) on the same side of the debris storage box (602). The net (606) is provided with a box cover (604) at the top of the debris storage box (602), a second connecting shaft (603) is rotatably connected between the box cover (604) and one end of the debris storage box (602), a debris adsorption pipe (607) is fixedly connected to the air inlet end of the second air pump (605), the other end of the debris adsorption pipe (607) is formed with two interfaces which are respectively fixedly connected to and communicated with the two debris storage boxes (602), and the second air pump (605) is electrically connected to the programmable controller (4).

8. The rust removal device for metal workpiece according to claim 3, characterized in that: The conveying mechanism comprises a fourth motor (702) fixedly connected to the outer wall of the support frame (203) on the side away from the machine body (1) and two third drive shafts (701) arranged inside the support frame (203); one end of the third drive shaft (701) close to the fourth motor (702) is connected to the output end of the fourth motor (702) through a coupling; the other end of the third drive shaft (701) close to the fourth motor (702) passes through the support frame (203) and extends into the drive cavity (202); the third drive shaft (701) is connected to the through section of the support frame (203) through a bearing; both ends of the third drive shaft (701) on the side away from the fourth motor (702) are connected to the inner wall of the support frame (203) through bearings; a transmission gear roller (704) is fixedly sleeved outside the third drive shaft (701); the outer surfaces of the two transmission gear rollers (704) are connected to a third transmission toothed belt (703) in meshing transmission connection; and the fourth motor (702) is electrically connected to a programmable controller (4).

9. A metal workpiece rust removal device according to claim 8, characterized in that: The linkage mechanism comprises a fifth gear (801) fixedly sleeved on a third drive shaft (701) near the fourth motor (702) and extending to an inner shaft of the drive chamber (202), and a sixth gear (803) fixedly sleeved on a hollow support shaft (201) and located on an inner shaft of the drive chamber (202), wherein the outer surfaces of the fifth gear (801) and the sixth gear (803) are meshingly connected with a fourth transmission toothed belt (802).

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