Automatic feeding device for pickling line

Abstract

The invention relates to the technical field of steel pipe pickling and conveying devices, in particular to an automatic feeding device for a pickling line, which is used for solving the problem that acid mist is easy to diffuse in the steel pipe pickling and feeding and discharging processes, and comprises an anti-diffusion mechanism which comprises a pickling box and a protection box buckled on the upper part of the pickling box, a sliding plate is slidably connected to the upper portion of the pickling box in the protection box, the side wall of the sliding plate is attached to the inner wall of the protection box, steel pipes to be pickled can be added into the pickling box after the protection box moves upwards to the pickling box, and when the protection box moves upwards, the sliding plate moves upwards to the protection box, so that pickling solution steam moves upwards along with the protection box; according to the device, when the protection box moves upwards, the sliding plate sliding in the protection box also moves upwards relative to the protection box, so that the upper part of the protection box forms a negative pressure state, acid steam moves upwards in the protection box under the influence of the negative pressure, and acid mist diffusion is further prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe pickling conveying devices, belonging to B65G47*, and particularly relates to an automatic loading device for a pickling line. Background Art

[0002] The thermal management system, braking system, body structure, suspension system, etc. of new energy vehicles all include steel pipe components. When manufacturing new energy vehicles using steel pipes, the steel pipes need to be processed before use, and one of the steps is pickling the steel pipes;

[0003] In the operation of steel pipe pickling, the problem of acid pickling solution vapor diffusion has long troubled the development of the industry. The acid pickling solution vapor not only poses a serious threat to the physical health of operators, such as irritating the respiratory tract and damaging the skin, but also corrodes the equipment in the workshop, shortens the service life of the equipment, and increases the maintenance cost.

[0004] When traditional pickling lines are working, the pickling tanks are mostly open or only have simple protection, and the acid pickling solution vapor is extremely likely to escape into the surrounding environment uncontrollably. Although measures such as strengthening ventilation and using acid mist inhibitors have been taken before, the problem of acid pickling solution vapor diffusion has not been fundamentally solved. Although the ventilation equipment can discharge part of the vapor, it cannot prevent its initial diffusion in the workshop; the effect of the acid mist inhibitor will also gradually weaken due to various factors during the pickling process. Summary of the Invention

[0005] The present invention provides an automatic loading device for a pickling line to solve the problem of easy diffusion of acid mist during the loading and unloading process of steel pipe pickling.

[0006] In order to alleviate the above technical problems, the technical solution provided by the present invention lies in:

[0007] An automatic loading device for a pickling line includes an anti-diffusion mechanism. The anti-diffusion mechanism includes a pickling tank and a protective tank buckled on the upper part of the pickling tank. A slide plate is slidably connected to the upper part of the pickling tank inside the protective tank. The side wall of the slide plate fits with the inner wall of the protective tank. After the protective tank moves upward relative to the pickling tank, it can add steel pipes to be pickled into the pickling tank. When the protective tank moves upward, the slide plate moves upward in the protective tank, so that the acid pickling solution vapor moves upward with the protective tank.

[0008] Furthermore, a rectangular plate is fixedly connected to the top of the pickling tank. There is a gap between the rectangular plate and the port of the pickling tank, and a plurality of through holes are formed on the plate surface of the rectangular plate, and the side wall fits with the inner wall of the protective tank.

[0009] Furthermore, the anti-diffusion mechanism also includes a rack fixedly connected to the upper surface of the slide plate, the rack passes through the top wall of the protective box, and the top of the protective box is rotatably connected to a driving tooth that meshes with the rack. When the protective box moves upward and then moves downward, the driving tooth rotates and drives the rack to slide upward, and after the protective box moves downward and resets, the driving tooth rotates in the opposite direction to drive the rack to reset.

[0010] Furthermore, the anti-diffusion mechanism further comprises a driving tooth, a driven tooth and a tightening tooth, the bottom of the pickling box is fixedly connected to a base, the driving tooth is fixedly rotated on the base, the driving tooth is coaxially fixedly connected to a rotating shaft, the driven tooth is coaxially fixedly connected to an end of the rotating shaft, the tightening tooth is slidably connected to an outer wall of the protection box, and a chain is transmission-connected between the driving tooth, the driven tooth and the tightening tooth;

[0011] When the protection box moves upward, the active tooth is locked to the base, and the tightening tooth slides linearly on the protection box, so that the chain changes from a triangular state to a rectangular state, so that the driven tooth rotates, and, when the protection box moves upward and then downward, the active tooth is driven by an external motor to rotate in the forward direction, so that the driven tooth continues to maintain the original direction of rotation, and after the protection box moves downward and resets, the external motor drives the active tooth to rotate in the reverse direction, so that the driven tooth rotates in the reverse direction to reset the rack.

[0012] Furthermore, a slider is slidably connected to the outer wall of the protective box, a telescopic rod is fixedly connected between the slider and the protective box, a spring is sleeved on the telescopic rod, two ends of the spring are respectively abutted against the slider and the protective box, and the tensioning tooth is fixedly rotated on the slider.

[0013] Furthermore, it also includes a feeding mechanism and a feeding mechanism, which are symmetrically arranged on both sides of the pickling box and each includes two rollers that are vertically symmetrically arranged, two conveyor belts are transmission-connected between the two rollers, and two rods are slidably connected to the two conveyor belts;

[0014] The feeding mechanism further includes two first guide seats, and the unloading mechanism further includes two second guide seats, the first guide seat and the second guide seat are respectively provided with a first elliptical slide groove and a second elliptical slide groove, the first elliptical slide groove includes a first guide section and a second guide section, the distance between the first guide section and the conveyor belt is smaller than the distance between the second guide section and the conveyor belt, and the second guide section is close to the pickling box, the second elliptical slide groove includes a third guide section and a fourth guide section, the distance between the third guide section and the conveyor belt is smaller than the distance between the fourth guide section and the conveyor belt, and the fourth guide section is close to the pickling box;

[0015] At one end of two groups of the insertion rods close to the corresponding first guide seat and the second guide seat, spherical blocks are fixedly connected, and the spherical blocks slide in the corresponding first elliptical chute and the second elliptical chute.

[0016] Furthermore, the feeding mechanism and the discharging mechanism respectively include a first wedge seat and a second wedge seat. The steel pipe to be pickled can slide along the inclined surface of the first wedge seat into the pickling tank, and the pickled steel pipe can slide along the second wedge seat out of the pickling tank.

[0017] Furthermore, both the feeding mechanism and the discharging mechanism include guiding seats, and the guiding seats are symmetrically connected to both sides of the pickling tank and are respectively located below the corresponding conveyor belts;

[0018] A feeding rectangular cylinder and a discharging rectangular cylinder are symmetrically placed on both sides of the pickling tank, and the surfaces of the two guiding seats are flush with the bottom walls of the feeding rectangular cylinder and the discharging rectangular cylinder respectively.

[0019] Furthermore, two wedge blocks are symmetrically and fixedly connected to the upper surfaces of the two guiding seats. An exhaust pipe is fixedly connected through one of the guiding seats, and filter cotton is arranged in the exhaust pipe.

[0020] Furthermore, the discharging mechanism further includes a trapezoidal block fixedly connected to the bottom wall of the pickling tank and a triangular block vertically slidably connected in the pickling tank. A hydraulic rod is fixedly connected to the base, and the output end of the hydraulic rod is fixedly connected to the triangular block. When the hydraulic rod is shortened to the shortest state, the upper surface of the triangular block is flush with the upper surface of the trapezoidal block. When the hydraulic rod is extended to the longest state, the upper surface of the triangular block is flush with the upper surface of the second wedge seat.

[0021] The beneficial effects of the present invention are analyzed as follows:

[0022] An automatic feeding device for a pickling line includes an anti-diffusion mechanism. The anti-diffusion mechanism includes a pickling tank and a protective box buckled on the upper part of the pickling tank. A sliding plate is slidably connected in the upper part of the pickling tank in the protective box, and the side wall of the sliding plate fits with the inner wall of the protective box. After the protective box is moved upward relative to the pickling tank, it can add the steel pipe to be pickled into the pickling tank. When the protective box is moved upward, the sliding plate is moved upward in the protective box, so that the acid pickling solution vapor moves upward with the protective box.

[0023] The protective box is buckled on the upper part of the pickling box, so that the steam of the pickling solution in the pickling box can be shielded by the protective box and will not enter the external environment. When it is necessary to add the steel pipe to be pickled into the pickling box, the protective box is controlled to move upward. When the protective box moves upward, the slide plate sliding in the protective box also moves upward relative to the protective box, so that a negative pressure state is formed in the upper part of the protective box, and the acidic steam moves upward in the protective box under the influence of the negative pressure, further preventing the acid mist from spreading. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the overall structure of the present invention;

[0026] Figure 2 Cross-sectional view of the present invention;

[0027] Figure 3 Schematic diagram of the structure at the chain of the present invention;

[0028] Figure 4 Schematic diagram of the structure at the telescopic rod of the present invention;

[0029] Figure 5 Schematic diagram of the structure at the feeding mechanism and the discharging mechanism of the present invention;

[0030] Figure 6 Schematic diagram of the structure at the triangular block of the present invention.

[0031] Icon:

[0032] 100. Anti-proliferation mechanism; 110. Protective box; 120. Pickling box; 121. Rectangular plate; 122. Base; 130. Slide plate; 140. Rack; 150. Rotating shaft; 160. Driving gear; 170. Driven gear; 180. Driving gear; 181. Chain; 190. Tightening gear; 191. Slide block; 192. Telescopic rod; 193. Spring; 200. Feeding mechanism; 210. Material guiding seat; 220. Wedge block; 230. First guiding seat; 240. First elliptical chute; 241. First guiding section; 242. Second guiding section; 250. Roller; 260. Conveyor belt; 270. Insert rod; 280. First wedge seat; 290. Feeding rectangular cylinder; 300. Discharging mechanism; 310. Trapezoidal block; 320. Triangular block; 330. Hydraulic rod; 340. Second wedge seat; 350. Second guiding seat; 360. Second elliptical chute; 361. Third guiding section; 362. Fourth guiding section; 370. Discharging rectangular cylinder. Detailed implementation mode

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] Example, as Figures 1-6As shown in the figure, an automatic loading device for a pickling line includes an anti-diffusion mechanism 100. The anti-diffusion mechanism 100 includes a pickling tank 120 and a protective tank 110 buckled on the upper part of the pickling tank 120. A slide plate 130 is slidably connected to the upper part of the pickling tank 120 inside the protective tank 110. The side wall of the slide plate 130 fits against the inner wall of the protective tank 110. After the protective tank 110 moves upward relative to the pickling tank 120, it can add steel pipes to be pickled into the pickling tank 120. When the protective tank 110 moves upward, the slide plate 130 moves upward relative to the protective tank 110, so that the acid pickling solution vapor moves upward with the protective tank 110.

[0037] The working mechanism of the automatic loading device for the pickling line provided in this embodiment:

[0038] The protective tank 110 is buckled on the upper part of the pickling tank 120, so that the vapor of the acid pickling solution in the pickling tank 120 can be shielded by the protective tank 110 after rising and will not enter the external environment. When it is necessary to add steel pipes to be pickled into the pickling tank 120, the protective tank 110 is controlled to move upward. When the protective tank 110 moves upward, the slide plate 130 sliding inside the protective tank 110 also moves upward relative to the protective tank 110, so that a negative pressure state is formed in the upper part of the protective tank 110, and the acidic vapor moves upward in the protective tank 110 under the influence of the negative pressure, further preventing the acid mist from diffusing;

[0039] The protective tank 110 can be hoisted by a crane to control the up and down movement, or hydraulic cylinders and other components can be arranged between the protective tank 110 and the base 122 to drive the protective tank 110 to move up and down.

[0040] In an optional manner of this embodiment, a more preferred one is:

[0041] A rectangular plate 121 is fixedly connected to the top of the pickling tank 120. There is a gap between the rectangular plate 121 and the port of the pickling tank 120. A plurality of through holes are formed on the plate surface of the rectangular plate 121, and the side wall fits against the inner wall of the protective tank 110.

[0042] There is a gap between the rectangular plate 121 and the pickling tank 120. The steel pipes to be pickled enter the pickling tank 120 through this gap. Part of the acidic vapor enters the space between the slide plate 130 and the rectangular plate 121 through the through holes on the rectangular plate 121. During the upward movement of the protective tank 110, the slide plate 130 is in a state away from the rectangular plate 121. At this time, the distance between the two increases, so that the negative pressure state in the space between the slide plate 130 and the rectangular plate 121 is further increased. Under the action of the negative pressure, the acidic vapor can enter the space between the slide plate 130 and the rectangular plate 121 through the through holes on the rectangular plate 121, achieving the effect of collecting the acidic vapor and avoiding the leakage of the acidic vapor;

[0043] In addition, a cooling channel can be opened in the skateboard 130 and condensed water can be introduced, so that when the acidic vapor contacts the skateboard 130, it can be condensed and drip into the pickling tank 120, achieving the effect of recycling the acidic vapor.

[0044] In an alternative embodiment of the present embodiment, preferably:

[0045] The anti-diffusion mechanism 100 further includes a rack 140 fixedly connected to the upper surface of the skateboard 130. The rack 140 penetrates the top wall of the protection box 110. A driving gear 160 meshing with the rack 140 is rotatably connected to the top of the protection box 110. When the protection box 110 moves upward and then moves downward after moving upward, the driving gear 160 rotates and drives the rack 140 to slide upward. And after the protection box 110 moves downward and resets, the driving gear 160 rotates in the reverse direction to drive the rack 140 to reset.

[0046] The driving gear 160 rotates on the fixed axis at the top of the protection box 110 and moves synchronously with the movement of the protection box 110. And the driving gear 160 meshes with the rack 140. When the protection box 110 moves upward, the driving gear 160 rotates clockwise in the Figure 2 state, thereby driving the rack 140 to drive the skateboard 130 to move upward relative to the protection box 110;

[0047] After the protection box 110 moves upward and the steel pipe to be pickled is added into the pickling tank 120, the protection box 110 starts to move downward. When the protection box 110 moves downward, the driving gear 160 continues to rotate clockwise in the Figure 2 state, so that the skateboard 130 continues to move upward relative to the protection box 110, so that the acidic vapor that may exist in the space between the protection box 110 and the pickling tank 120 in the external space of the skateboard 130 and the rectangular plate 121 leaks to the external space. After the protection box 110 moves downward to the original position, the driving gear 160 rotates counterclockwise in the Figure 2 state, so that the skateboard 130 resets, preparing for collecting the acidic vapor when adding the steel pipe next time.

[0048] In an alternative embodiment of the present embodiment, preferably:

[0049] The diffusion prevention mechanism 100 further includes a driving tooth 180, a driven tooth 170 and a tightening tooth 190. The bottom of the pickling box 120 is fixedly connected to the base 122. The driving tooth 180 is fixedly connected to the base 122. The driving tooth 160 is coaxially fixedly connected to the rotating shaft 150. The driven tooth 170 is coaxially fixedly connected to the end of the rotating shaft 150. The tightening tooth 190 is slidably connected to the outer wall of the protection box 110. The driving tooth 180, the driven tooth 170 and the tightening tooth 190 are connected by a chain 181. The protection box 110 moves upward. When the protective box 110 is moved upward and then downward, the driving tooth 180 is driven by an external motor to rotate in the forward direction, so that the driven tooth 170 continues to maintain the original direction of rotation. After the protective box 110 is moved downward and reset, the external motor drives the driving tooth 180 to rotate in the reverse direction, so that the driven tooth 170 rotates in the reverse direction to reset the rack 140.

[0050] The driving tooth 180 is driven by an external motor to rotate on the base 122. The driven tooth 170, the tightening tooth 190 and the driving tooth 180 are connected by a chain 181. In the initial state, the chain 181 is triangular. When the protection box 110 moves up, the driven tooth 170 pulls the chain 181 to further tighten it. When the chain 181 is tightened, the tightening tooth 190 is driven to move toward the direction of the center line between the driving tooth 180 and the driven tooth 170, so that the triangular chain 181 changes to a state tending to a rectangle. The external motor driving the driving tooth 180 has a self-locking function. When the protection box 110 moves up, the external motor does not run, so that the driving tooth 180 does not rotate. As the protection box 110 drives the driven tooth 170 to move up and the shape of the chain 181 changes, the driven tooth 170 can be locked. Figure 3 In the state, the driving gear 160 can be driven to rotate clockwise through the rotating shaft 150, so that the slide plate 130 moves upward;

[0051] After the protection box 110 moves to the uppermost part of the stroke and adds the steel pipe to be pickled into the pickling box 120, the protection box 110 starts to move downward. At this time, the external motor drives the active gear 180 to move downward. Figure 3 In this state, the slide plate 130 is rotated clockwise to ensure that the slide plate 130 can still slide up on the protection box 110 when the protection box 110 falls. After the protection box 110 falls and resets, the external motor drives the active gear 180 to rotate counterclockwise, so that the rack 140 is driven to move downward, thereby resetting the slide plate 130.

[0052] Among the optional methods of this embodiment, the more preferred ones are:

[0053] A slider 191 is slidably connected to the outer wall of the protective box 110. A telescopic rod 192 is fixedly connected between the slider 191 and the protective box 110. A spring 193 is sleeved on the telescopic rod 192. Two ends of the spring 193 respectively abut against the slider 191 and the protective box 110. The tensioning tooth 190 is rotatably fixed on the slider 191.

[0054] The telescopic rod 192 positions the sliding direction of the slider 191. The spring 193 provides a thrust force for the slider 191 to ensure that the tensioning tooth 190 can apply a thrust force to the chain 181 to make the chain 181 taut, and at the same time enables the tensioning tooth 190 to reset when the driven gear 170 approaches the driving gear 180.

[0055] Regarding the structures of the feeding mechanism 200 and the discharging mechanism 300, specifically:

[0056] The feeding mechanism 200 and the discharging mechanism 300 are symmetrically arranged on both sides of the pickling tank 120, and both include two rollers 250 symmetrically arranged vertically. Two conveyor belts 260 are drivingly connected between the two rollers 250. Plug rods 270 are slidably connected to both conveyor belts 260. The feeding mechanism 200 further includes two first guiding seats 230, and the discharging mechanism 300 further includes two second guiding seats 350. First elliptical chutes 240 and second elliptical chutes 360 are respectively formed on the first guiding seats 230 and the second guiding seats 350. The first elliptical chute 240 includes a first guiding section 241 and a second guiding section 242. The distance between the first guiding section 241 and the conveyor belt 260 is less than the distance between the second guiding section 242 and the conveyor belt 260, and the second guiding section 242 is close to the pickling tank 120. The second elliptical chute 360 includes a third guiding section 361 and a fourth guiding section 362. The distance between the third guiding section 361 and the conveyor belt 260 is less than the distance between the fourth guiding section 362 and the conveyor belt 260, and the fourth guiding section 362 is close to the pickling tank 120. Balls are fixedly connected to one ends of the two groups of plug rods 270 close to the corresponding first guiding seats 230 and second guiding seats 350, and the balls slide in the corresponding first elliptical chutes 240 and second elliptical chutes 360.

[0057] The steel pipe to be pickled is loaded between the two conveyor belts 260 of the feeding mechanism 200. The two conveyor belts 260 of the feeding mechanism 200 are in Figure 5When running in a clockwise direction in the [status], the insertion rods 270 provided on this conveyor belt 260 slide within the first elliptical chute 240 of the first guide base 230. When sliding from the bottom of the second guiding section 242 to the bottom of the first guiding section 241, the two opposed insertion rods 270 approach each other, so that the two insertion rods 270 lift the steel pipe, causing the steel pipe to move upward along the conveyor belt 260 of the feeding mechanism 200. When the insertion rods 270 for inserting the steel pipe move from the top of the first guiding section 241 to the top of the second guiding section 242, the two opposed insertion rods 270 move away from each other, so that the steel pipe is released. The released steel pipe enters the pickling tank 120 for pickling;

[0058] The pickled steel pipe moves to the discharging mechanism 300. The conveyor belt 260 of the discharging mechanism 300 is also in a clockwise rotation state in the [status]. When the insertion rods 270 of the discharging mechanism 300 slide from the fourth guiding section 362 to the third guiding section 361, the two opposed insertion rods 270 approach each other, so that the pickled steel pipe can be inserted and then move downward along the third guiding section 361. When moving to the lower part of the third guiding section 361 and moving towards the fourth guiding section 362, the two opposed insertion rods 270 move away from each other, causing the pickled steel pipe to be released. Figure 5 In an optional manner of this embodiment, preferably:

[0059] The feeding mechanism 200 and the discharging mechanism 300 respectively include a first wedge base 280 and a second wedge base 340. The steel pipe to be pickled can slide along the inclined surface of the first wedge base 280 into the pickling tank 120, and the pickled steel pipe can slide along the second wedge base 340 out of the pickling tank 120.

[0060] The surface of the first wedge base 280 is inclined towards the pickling tank 120, so that the steel pipe released by the feeding mechanism 200 can roll along the surface of the first wedge base 280 into the pickling tank 120. The surface of the second wedge base 340 is inclined towards the outside of the pickling tank 120. When the pickled steel pipe in the pickling tank 120 is conveyed, it rolls out of the pickling tank 120 along the second wedge base 340. A rectangular block shorter than the steel pipe is provided on the second wedge base 340, and an arc-shaped groove matching the steel pipe is opened on the surface of the rectangular block. The center of this arc-shaped groove is located on the sliding track of the insertion rod 270 of the discharging mechanism 300, ensuring that after the insertion rod 270 runs to the center part of this arc-shaped groove, the two insertion rods 270 approach each other and are inserted into the steel pipe for discharging.

[0061] In an optional manner of this embodiment, preferably:

[0062]

[0063] ​Both the feeding mechanism 200 and the discharging mechanism 300 include a material guiding seat 210. The material guiding seats 210 are symmetrically connected to both sides of the pickling tank 120 and are respectively located below the corresponding conveyor belts 260. A feeding rectangular cylinder 290 and a discharging rectangular cylinder 370 are symmetrically placed on both sides of the pickling tank 120. The surfaces of the two material guiding seats 210 are flush with the bottom walls of the feeding rectangular cylinder 290 and the discharging rectangular cylinder 370 respectively.

[0064] The steel pipes to be pickled are put into the feeding rectangular cylinder 290. The heights of the feeding rectangular cylinder 290 and the discharging rectangular cylinder 370 are slightly greater than the diameter of the steel pipes, which can avoid the stacking of steel pipes while ensuring the smooth sliding of the steel pipes. After the protective box 110 moves up, the steel pipes in the feeding rectangular cylinder 290 slide down to the material guiding seat 210 of the feeding mechanism 200. An arc-shaped groove is also opened on this material guiding seat 210, and the center of the arc-shaped groove is located on the sliding track of the insertion rod 270 of the feeding mechanism 200, ensuring that the feeding mechanism 200 can lift the steel pipes to be pickled and transport them into the pickling tank 120. The pickled steel pipes output by the discharging mechanism 300 then fall onto the material guiding seat 210 of the discharging mechanism 300 and then slide down along the inclined surface of the material guiding seat 210 into the discharging rectangular cylinder 370 to complete the discharging.

[0065] In an alternative embodiment of the present example, preferably:

[0066] Two wedge blocks 220 are symmetrically and fixedly connected to the upper surfaces of the two material guiding seats 210. An exhaust pipe is fixedly connected through one of the material guiding seats 210, and filter cotton is arranged in the exhaust pipe.

[0067] The setting of the two wedge blocks 220 enables the steel pipes to be in the middle position of the material guiding seat 210 after sliding onto the material guiding seat 210, ensuring the accurate insertion of the insertion rod 270 and at the same time ensuring that the pickled steel pipes can roll into the discharging rectangular cylinder 370.

[0068] After the protective box 110 moves down and resets, the slide plate 130 moves down. At this time, a positive pressure is generated in the space between the protective box 110 and the pickling tank 120, so that the excess air is discharged through the exhaust pipe at the bottom. The acidic steam floats on the upper part, ensuring that basically no acidic steam is discharged from the exhaust pipe. In addition, the filter cotton arranged in the exhaust pipe can also intercept the acidic steam.

[0069] In an alternative embodiment of the present example, preferably:

[0070] The blanking mechanism 300 further includes a trapezoidal block 310 fixedly connected to the bottom wall of the pickling tank 120 and a triangular block 320 vertically slidably connected within the pickling tank 120. A hydraulic rod 330 is fixedly connected to the base 122, and the output end of the hydraulic rod 330 is fixedly connected to the triangular block 320. When the hydraulic rod 330 is shortened to its shortest state, the upper surface of the triangular block 320 is flush with the upper surface of the trapezoidal block 310. When the hydraulic rod 330 is extended to its longest state, the upper surface of the triangular block 320 is flush with the upper surface of the second wedge seat 340.

[0071] The actions of adding steel pipes into the pickling tank 120 and releasing steel pipes are synchronized, that is, the feeding mechanism 200 and the blanking mechanism 300 operate synchronously. When the blanking mechanism 300 operates, the hydraulic rod 330 extends, causing the steel pipes sliding down the upper surface of the trapezoidal block 310 onto the upper surface of the triangular block 320 to be lifted to the port of the pickling tank 120. The length of the triangular block 320 can be set to be slightly larger than the diameter of the steel pipe, so that it sends out a small amount of steel pipes each time, or it can be set wider to lift all the pickled steel pipes at once, but the extension speed of the hydraulic rod 330 is reduced, causing the steel pipes on the triangular block 320 to slide out one by one through the second wedge seat 340. Then, the steel pipes to be pickled added later are all on the inclined surface of the trapezoidal block 310, ensuring that the ones added later will not be sent out.

[0072] In addition, it is also possible to control the discharge of the pickled steel pipes without relying on the lifting of the triangular block 320. A manipulator is provided on the lower surface of the rectangular plate 121. After the triangular block 320 lifts the pickled steel pipes, the pickling solution flows back into the pickling tank 120 along the surface of the triangular block 320, and then the manipulator grabs the pickled steel pipes one by one onto the second wedge seat 340.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic loading device for a pickling line, characterized in that: The invention comprises an anti-diffusion mechanism (100), wherein the anti-diffusion mechanism (100) comprises a pickling box (120) and a protective box (110) buckled on the upper part of the pickling box (120); a slide plate (130) is slidably connected to the upper part of the pickling box (120) in the protective box (110); the side wall of the slide plate (130) is in contact with the inner wall of the protective box (110); after the protective box (110) is moved up on the pickling box (120), steel pipes to be pickled can be added into the pickling box (120); and when the protective box (110) is moved up, the slide plate (130) is moved up on the protective box (110), so that the pickling liquid vapor moves up with the protective box (110).

2. The pickling line automatic loading device according to claim 1, wherein: A rectangular plate (121) is fixedly connected to the top of the pickling box (120), a gap is provided between the rectangular plate (121) and the port of the pickling box (120), and a plurality of through holes are provided on the plate surface of the rectangular plate (121), and the side wall is in contact with the inner wall of the protective box (110).

3. The pickling line automatic loading device according to claim 2, characterized in that: The anti-diffusion mechanism (100) also includes a rack (140) fixedly connected to the upper surface of the slide plate (130), the rack (140) passes through the top wall of the protection box (110), and the top of the protection box (110) is rotatably connected to a driving tooth (160) meshing with the rack (140). When the protection box (110) moves upward and then moves downward, the driving tooth (160) rotates and drives the rack (140) to slide upward, and after the protection box (110) moves downward and resets, the driving tooth (160) rotates in the opposite direction to drive the rack (140) to reset.

4. The pickling line automatic loading device according to claim 3, characterized in that: The anti-diffusion mechanism (100) further comprises a driving tooth (180), a driven tooth (170) and a tightening tooth (190); the bottom of the pickling box (120) is fixedly connected to a base (122); the driving tooth (180) is fixedly connected to the base (122); the driving tooth (160) is coaxially fixedly connected to a rotating shaft (150); the driven tooth (170) is coaxially fixedly connected to an end of the rotating shaft (150); the tightening tooth (190) is slidably connected to an outer wall of the protection box (110); and a chain (181) is transmission-connected between the driving tooth (180), the driven tooth (170) and the tightening tooth (190); When the protective box (110) moves upward, the driving gear (180) is locked to the base (122), and the tensioning gear (190) linearly slides on the protective box (110), so that the chain (181) changes from a triangular state to a state approaching a rectangular state, so as to rotate the driven gear (170). And when the protective box (110) moves downward after moving upward, the driving gear (180) is driven by an external motor to rotate forward, so that the driven gear (170) continues to rotate in the original direction. After the protective box (110) moves downward and resets, the external motor drives the driving gear (180) to rotate reversely, so that the driven gear (170) rotates reversely to reset the rack (140).

5. The pickling line automatic feeding device according to claim 4, characterized in that: A slider (191) is slidably connected to the outer wall of the protective box (110). A telescopic rod (192) is fixedly connected between the slider (191) and the protective box (110). A spring (193) is sleeved on the telescopic rod (192). Two ends of the spring (193) respectively abut against the slider (191) and the protective box (110). The tensioning gear (190) is rotatably fixed to the slider (191).

6. The pickling line automatic loading device according to claim 5, wherein: It further includes a feeding mechanism (200) and a discharging mechanism (300). The feeding mechanism (200) and the discharging mechanism (300) are symmetrically arranged on both sides of the pickling tank (120), and both include two rollers (250) arranged vertically and symmetrically. Two conveyor belts (260) are drivingly connected between the two rollers (250). Plug rods (270) are slidably connected to both of the two conveyor belts (260). The feeding mechanism (200) further includes two first guiding seats (230). The discharging mechanism (300) further includes two second guiding seats (350). A first elliptical chute (240) and a second elliptical chute (360) are respectively formed in the first guiding seat (230) and the second guiding seat (350). The first elliptical chute (240) includes a first guiding section (241) and a second guiding section (242). The distance between the first guiding section (241) and the conveyor belt (260) is smaller than the distance between the second guiding section (242) and the conveyor belt (260), and the second guiding section (242) is close to the pickling tank (120). The second elliptical chute (360) includes a third guiding section (361) and a fourth guiding section (362). The distance between the third guiding section (361) and the conveyor belt (260) is smaller than the distance between the fourth guiding section (362) and the conveyor belt (260), and the fourth guiding section (362) is close to the pickling tank (120). Balls are fixedly connected to one ends of the two groups of plug rods (270) close to the corresponding first guiding seats (230) and second guiding seats (350). The balls slide in the corresponding first elliptical chute (240) and second elliptical chute (360).

7. The pickling line automatic loading device according to claim 6, characterized in that: The feeding mechanism (200) and the discharging mechanism (300) respectively include a first wedge seat (280) and a second wedge seat (340). The steel pipe to be pickled can slide along the inclined surface of the first wedge seat (280) into the pickling tank (120), and the pickled steel pipe can slide along the second wedge seat (340) out of the pickling tank (120).

8. The pickling line automatic loading device according to claim 7, characterized in that: Both the feeding mechanism (200) and the discharging mechanism (300) include a guiding seat (210). The guiding seats (210) are symmetrically connected to both sides of the pickling tank (120) and are respectively located below the corresponding conveyor belts (260). A feeding rectangular cylinder (290) and a discharging rectangular cylinder (370) are symmetrically placed on both sides of the pickling tank (120). The surfaces of the two guiding seats (210) are flush with the bottom walls of the feeding rectangular cylinder (290) and the discharging rectangular cylinder (370) respectively.

9. The automatic loading device for pickling line according to claim 8, wherein: Two wedge blocks (220) are symmetrically and fixedly connected to the upper surfaces of the two guiding seats (210). An exhaust pipe is fixedly connected through one of the guiding seats (210), and filter cotton is arranged in the exhaust pipe.

10. The pickling line automatic loading device according to claim 9, characterized in that: The discharging mechanism (300) further includes a trapezoidal block (310) fixedly connected to the bottom wall of the pickling tank (120) and a triangular block (320) vertically slidably connected in the pickling tank (120). A hydraulic rod (330) is fixedly connected to the base (122). The output end of the hydraulic rod (330) is fixedly connected to the triangular block (320). When the hydraulic rod (330) is shortened to the shortest state, the upper surface of the triangular block (320) is flush with the upper surface of the trapezoidal block (310). When the hydraulic rod (330) is extended to the longest state, the upper surface of the triangular block (320) is flush with the upper surface of the second wedge seat (340).

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