A pickling equipment for stainless steel water pipe production

Abstract

The present invention provides a pickling device for stainless steel water pipe production, which belongs to the technical field of pickling equipment and is used to solve the technical problems of low automation and high operation risk of the existing stainless steel water pipe pickling process. It includes a pickling box, a rotating shaft is rotatably arranged inside the pickling box, two rotating plates are fixed on the rotating shaft, a clamping mechanism is arranged on the rotating plate, a delivery rack is arranged on one side of the pickling box, and a collection rack is arranged on the other side of the pickling box; the present invention can realize automatic pickling of stainless steel water pipes, does not require operators to put in or take out stainless steel water pipes, reduces the labor intensity of operators and contact with pickling liquid, has a high degree of automation and low operation risk; can pickle stainless steel water pipes of different lengths and diameters, and has a wide range of applications; can guide the pickling liquid that has not flowed out of the inside of the stainless steel water pipe into the pickling box again, prevents the pickling liquid from leaking out, and further improves the safety of the operator's working environment.

Description

Technical Field

[0001] The invention belongs to the technical field of pickling equipment and relates to a pickling equipment for producing stainless steel water pipes. Background Art

[0002] In the production of stainless steel water pipes, the initially formed water pipes need to be passivated. The previous step of passivation is pickling. One of the purposes of pickling is to create conditions for passivation treatment and ensure the formation of a good passivation film. Because pickling causes an average of 10um thick layer of the stainless steel surface to be corroded away, the chemical activity of the acid makes the dissolution rate of the defective parts higher than other parts on the surface. Therefore, pickling can make the entire surface tend to be uniform and balanced, and remove some hidden dangers that are prone to corrosion.

[0003] During pickling, the stainless steel water pipe is generally placed in the pickling tank and soaked for a period of time, and then taken out for cleaning. The operator needs to put it in and take it out manually or use tools. The degree of automation is low, the labor intensity for the operator is high, and the pickling solution is corrosive, and manual operation is highly dangerous.

[0004] Based on this, we designed a pickling equipment for stainless steel water pipe production. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems in the existing technology and to propose a pickling device for stainless steel water pipe production. The technical problem to be solved by the device is: how to improve the automation level of stainless steel water pipe pickling and reduce the operational risks.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A pickling device for producing stainless steel water pipes, comprising a pickling box filled with pickling liquid, a water inlet pipe and a water outlet pipe being connected to the side wall of the pickling box, a rotating shaft being rotatably arranged inside the pickling box, and a driving motor for driving the rotating shaft to rotate is installed on the outer side of the pickling box, two rotating plates are fixed on the rotating shaft, a clamping mechanism is arranged on the rotating plate, a delivery rack is arranged on one side of the pickling box, and a collecting rack is arranged on the other side of the pickling box, the delivery rack comprises a first bracket, a plurality of transverse plates are fixed on the upper end of the first bracket, a plurality of equally spaced inclined rods are fixed on the transverse plate, a baffle is fixed on the end of the inclined rod, the collecting rack comprises two tripods fixed on the side wall of the pickling box, a fixed pipe is fixed between the two tripods, a long groove is opened on the side wall of the fixed pipe, a slider is slidably arranged inside the fixed pipe, a lifting rod is fixed on the slider, and the lifting rod is tilted downward in a direction away from the delivery rack, a second bracket is arranged on the side of the pickling box away from the delivery rack, a crossbeam is arranged on the second bracket, two symmetrically distributed guide plates are arranged on the crossbeam, and vertical plates are fixed on the ends of the guide plates.

[0008] The working principle of the present invention is: when in use, the driving motor is started to drive the rotating shaft and the two rotating plates to rotate, and the operator places the stainless steel water pipes to be pickled in parallel on the inclined rod in turn. Under the action of gravity, the stainless steel water pipes roll downward and are blocked by the baffle. The stainless steel water pipes can only move downward individually and be clamped by the clamping mechanism, and then rotate with the rotating plate. During the rotation process, the stainless steel water pipes drop below the liquid level of the pickling solution, and rise from the other side after soaking for a period of time. After the stainless steel water pipes rise, the clamping mechanism is released. At this time, the stainless steel water pipes are squeezed upward by the lifting rod while the rotating plate rotates, and gradually break away from the clamping mechanism, and then slide down along the guide plate, are blocked by the vertical plate and finally stay on the two guide plates. The operator is not required to put or take out the stainless steel water pipes from the pickling box, which reduces the labor intensity of the operator and the contact with the pickling solution. The pickling process has a high degree of automation and low operating risk.

[0009] The launching rack also includes two guardrails, two L-shaped fasteners are fixed to the bottom of the guardrails, and anti-slip sheets are fixed to the inner sides of the L-shaped fasteners, and the anti-slip sheets are against the lower surface of the cross plate, two connecting pieces are fixed to both ends of the baffle, and long slots are opened on the connecting pieces, and fixing bolts are fixed to the outer sides of the inclined rods located at the edges, and the fixing bolts pass through the long slots at the corresponding positions, and clamping nuts are threadedly connected to the fixing bolts.

[0010] By adopting the above structure, the two guardrails can be moved at will on the cross plate, and stainless steel water pipes of different lengths can be limited. Moreover, the position of the baffle can be adjusted through the cooperation of fixing bolts and connecting parts, so that only one stainless steel water pipe can pass between the baffle and the tilting rod, which can adapt to the use of stainless steel water pipes of different diameters.

[0011] The clamping mechanism includes a plurality of circumferentially evenly distributed clamping jaws hinged on a rotating plate, the clamping jaws are composed of two clamping rods, and the two clamping rods are rotatably connected, a sliding groove is provided on the clamping rod, a plurality of circumferentially evenly distributed sliding rails are fixed on the rotating plate, and the number of the sliding rails is the same as that of the clamping jaws, a sliding seat is slidably arranged on the sliding rails, two symmetrically distributed wing plates are fixed on the sliding seat, a fixing pin is fixed on the wing plate, and the fixing pin is slidably arranged in the sliding groove at the corresponding position, a plurality of fixed plates are fixed on the rotating plate, the fixed plates are located between the sliding rails and the clamping jaws at the corresponding positions, a compression spring is arranged between the fixed plate and the sliding seat, a supporting seat is fixed to the bottom of the pickling box, a cam is fixed to the upper end of the supporting seat, and a through hole is provided in the middle of the cam, the rotating shaft passes through the through hole, and the end of the sliding seat away from the clamping jaw abuts against the outer side of the cam.

[0012] With the above structure, when in use, the driving motor drives the rotating shaft to rotate, the rotating plate rotates with the rotating shaft, and the cam does not move. When the clamping jaw is at the highest position, its corresponding sliding seat is supported by the position with a larger radius of the cam, and the clamping jaw is in an open state. As the rotating plate rotates, the clamping jaw moves to a position close to the delivery rack, and a stainless steel water pipe on the delivery rack falls between the two clamping rods, and then the clamping jaw continues to rotate downward. At this time, its corresponding sliding seat gradually approaches the position with a smaller radius of the cam. In this process, the compression spring gradually extends and pushes the sliding seat to a position away from the clamping jaw. At this time, the two fixing pins drive the two clamping rods to clamp the stainless steel water pipe, and then drive the stainless steel water pipe to rotate. The stainless steel water pipe drops below the liquid level of the pickling liquid and is soaked for a period of time. Then it rises from the other side. At this time, the sliding seat corresponding to the clamp is close to the position with a larger radius of the cam. Due to the squeezing of the cam, the sliding seat moves toward the direction close to the clamp, and drives the two clamping rods to unfold through two fixed pins to release the clamping of the stainless steel water pipe. At this time, the stainless steel water pipe is still inside the clamp and rotates with the rotating plate. When the stainless steel water pipe passes through the lifting rod, it is squeezed upward by the lifting rod and gradually separates from the clamp, and then slides down along the guide plate, and the clamp will continue to clamp the next stainless steel water pipe. Each clamp is cycled in this way to achieve automatic pickling. There is no need for operators to put or take out stainless steel water pipes in the pickling box, which reduces the labor intensity of operators and contact with pickling solution. The pickling process has a high degree of automation and low operating risk.

[0013] The rotating plate is slidably arranged on the rotating shaft, and a fixing ring is fixed on the side of the rotating plate away from the supporting seat, and a plurality of tightening bolts are threadedly connected on the fixing ring, a mounting plate is fixed on the bottom of the pickling box, a plurality of threaded holes are arranged on the mounting plate, and the supporting seat is fixedly connected to the mounting plate by bolts.

[0014] By adopting the above structure, the rotating plate can be fixed at any position on the rotating shaft by tightening the bolts, and the support seat can also be changed in position by being fixed by bolts. When used in conjunction with the moved rotating plate, when the stainless steel water pipe is longer, the distance between the two rotating plates can be increased to improve the clamping stability of the stainless steel water pipe. When the stainless steel water pipe is shorter, the distance between the two rotating plates can be shortened to improve the applicability of the equipment.

[0015] A stopper is fixed to the outer end of the clamp rod, a plurality of fan-shaped plates are fixed to the edge of the rotating plate, and the fan-shaped plates and the clamping claws are distributed alternately. A groove is opened on the inner side of the clamp rod, and a support rod is fixed to one side wall of the groove.

[0016] With the above structure, when the stainless steel water pipe falls from the delivery rack into the clamping claw, the support rod can support the stainless steel water pipe to ensure the height of the stainless steel water pipe and prevent the next stainless steel water pipe from falling and jamming the equipment. When the clamping claw moves away from the delivery rack after clamping a stainless steel water pipe, the block and the fan-shaped plate can support the next stainless steel water pipe to prevent the next stainless steel water pipe from falling on the outside of the clamping claw and jamming the equipment. Moreover, when the clamping claw clamps the stainless steel water pipe, the support rod retracts into the groove under the action of the clamping force and will not hinder the clamping of the clamping claw.

[0017] The rotating plate is provided with a plurality of circular holes, in which detachable bolts are inserted, and ends of the detachable bolts are threadedly connected with detachable nuts, and two clamping rods are rotatably arranged on the detachable bolts.

[0018] With the above structure, when pickling stainless steel water pipes of different diameters, the detachable bolts and detachable nuts can be removed, and then clamping rods of different types can be replaced, thereby expanding the application scope of the equipment.

[0019] The two sides of the crossbeam are provided with clamping grooves, and the bottom of the guide plate is fixed with two clamping buckles, and the clamping buckles are slidably arranged in the clamping grooves.

[0020] With the above structure, in actual use, the guide plate can be slid along the crossbeam to change the spacing between the two guide plates. When the stainless steel water pipe is longer, the distance between the two guide plates can be increased to improve the support stability of the stainless steel water pipe. When the stainless steel water pipe is shorter, the distance between the two guide plates can be shortened to improve the application range of the equipment.

[0021] A water collecting trough with one side opening is fixed on the outer side of the guide plate, and the open end of the water collecting trough is located just above the pickling box.

[0022] With the above structure, the unused pickling liquid on the inner side of the stainless steel water pipe on the guide plate will flow to both sides and fall into the water collecting tank, and then flow into the pickling tank again.

[0023] A rotation groove is formed at one end of the guide plate away from the vertical plate, and a swing plate is rotatably arranged in the rotation groove. A limiting plate is fixed at the bottom of the swing plate, and the limiting plate abuts against the lower surface of the guide plate.

[0024] With the above structure, when in use, when the stainless steel water pipe rises, the stainless steel water pipe will contact the bottom of the swing plate and lift one end of the swing plate upward. When it passes over the swing plate, the swing plate is reset under the action of gravity and remains flush with the guide plate under the action of the limit plate. When the stainless steel water pipe rolls down along the guide plate, it will not be blocked by the end of the guide plate, causing the equipment to jam, thereby improving the smoothness of the equipment operation.

[0025] Compared with the prior art, this pickling equipment for stainless steel water pipe production has the following advantages:

[0026] 1. Automatic pickling of stainless steel water pipes is achieved through the delivery rack, clamping mechanism, rotating plate and collecting rack. Operators are not required to put in or take out stainless steel water pipes from the pickling box, which reduces the labor intensity of operators and their contact with pickling liquid. The pickling process has a high degree of automation and low operating risk.

[0027] 2. The equipment can be adjusted through guardrails, connectors, fixing rings, detachable bolts and buckles, so that the equipment can pickle stainless steel water pipes of different lengths and diameters, expanding the scope of application of the equipment.

[0028] 3. Through the fan-shaped plates, blocks and support rods, the equipment's transportation stability for stainless steel water pipes is improved, the equipment is prevented from getting stuck, and the smoothness of equipment operation is improved.

[0029] 4. Through the water collecting tank, the unused pickling liquid on the inner side of the stainless steel water pipe on the guide plate is guided back into the pickling tank to prevent the pickling liquid from leaking out, thus further improving the safety of the operator's working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 It is a schematic diagram of the planar structure of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the delivery rack in the present invention;

[0033] Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0034] Figure 5 It is a structural schematic diagram of the guardrail in the present invention;

[0035] Figure 6 It is a structural schematic diagram of one side of the rotating plate in the present invention;

[0036] Figure 7 is a schematic diagram of the structure of the other side of the rotating plate in the present invention;

[0037] Figure 8 It is a partial structural schematic diagram of the clamping mechanism in the present invention;

[0038] Fig. 9 It is a schematic diagram of the split structure of the clamping jaws in the present invention;

[0039] Fig.10 It is a schematic diagram of the structure of the collection rack in the present invention;

[0040] Fig.11It is a schematic cross-sectional structure diagram of the fixed pipe in the present invention;

[0041] Fig.12 It is a schematic diagram of the structure of the guide plate and the crossbeam in the present invention;

[0042] Fig.13 It is a structural schematic diagram of the swing plate in the present invention;

[0043] In the figure: 1, pickling box; 2, rotating shaft; 3, driving motor; 4, rotating plate; 5, clamping mechanism; 501, clamping rod; 502, slide groove; 503, slide rail; 504, sliding seat; 505, fixing plate; 506, compression spring; 507, wing plate; 508, fixing pin; 509, cam; 510, supporting seat; 511, fixing ring; 512, tightening bolt; 513, fan-shaped plate; 514, stopper; 515, groove; 516, supporting rod; 517, mounting plate; 518, threaded hole; 519, round hole; 520, removable bolt; 521, removable nut; 6, placing rack ; 601, first bracket; 602, cross plate; 603, tilt rod; 604, baffle; 605, guardrail; 606, L-shaped fastener; 607, anti-slip sheet; 608, connector; 609, long notch; 610, fixing bolt; 611, clamping nut; 7, collecting rack; 701, tripod; 702, fixing pipe; 703, long groove; 704, slider; 705, lifting rod; 706, second bracket; 707, cross beam; 708, guide plate; 709, buckle; 710, slot; 711, water collecting trough; 712, rotating trough; 713, swing plate; 714, limit plate. DETAILED DESCRIPTION

[0044] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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 cannot be understood as a limitation on this patent.

[0047] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0048] See also Figure 1-13 The present embodiment provides a pickling device for stainless steel water pipe production, comprising a pickling box 1 filled with pickling liquid, a water inlet pipe and a water outlet pipe connected to the side wall of the pickling box 1, a rotating shaft 2 is rotatably arranged inside the pickling box 1, and a driving motor 3 for driving the rotating shaft 2 to rotate is installed on the outer side of the pickling box 1, two rotating plates 4 are fixed on the rotating shaft 2, and a clamping mechanism 5 is provided on the rotating plate 4, a delivery rack 6 is provided on one side of the pickling box 1, and a collecting rack 7 is provided on the other side of the pickling box 1, the delivery rack 6 comprises a first bracket 601, and a plurality of horizontal plates 60 are fixed on the upper end of the first bracket 601 2. A plurality of equally spaced tilting rods 603 are fixed on the horizontal plate 602, and a baffle 604 is fixed at the end of the tilting rod 603. The collecting rack 7 includes two tripods 701 fixed on the side wall of the pickling box 1, a fixed pipe 702 is fixed between the two tripods 701, and a long groove 703 is opened on the side wall of the fixed pipe 702. A slider 704 is slidably arranged inside the fixed pipe 702, and a lifting rod 705 is fixed on the slider 704, and the lifting rod 705 is tilted downward in a direction away from the delivery rack 6. A second bracket 7 is arranged on the side of the pickling box 1 away from the delivery rack 6. 06, a crossbeam 707 is arranged on the second bracket 706, and two symmetrically distributed guide plates 708 are arranged on the crossbeam 707, and a vertical plate is fixed at the end of the guide plate 708; when in use, the driving motor 3 is started to drive the rotating shaft 2 and the two rotating plates 4 to rotate, and the operator places the stainless steel water pipes to be pickled on the tilting rod 603 in parallel in sequence. Under the action of gravity, the stainless steel water pipes roll downward and are blocked by the baffle 604. The stainless steel water pipes can only move downward individually and are clamped by the clamping mechanism 5, and then rotate with the rotating plate 4. During the rotation process, the stainless steel water pipes descend. To below the liquid level of the pickling liquid, after soaking for a period of time, it rises from the other side. After the stainless steel water pipe rises, the clamping mechanism 5 is released. At this time, the stainless steel water pipe is squeezed upward by the lifting rod 705 while the rotating plate 4 rotates, and gradually breaks away from the clamping mechanism 5, and then slides downward along the guide plate 708, is blocked by the vertical plate, and finally stays on the two guide plates 708. There is no need for operators to put in or take out the stainless steel water pipe from the pickling box 1, which reduces the labor intensity of operators and contact with the pickling liquid. The pickling process has a high degree of automation and low operating risk.

[0049] The launching rack 6 also includes two guardrails 605, two L-shaped fasteners 606 are fixed to the bottom of the guardrails 605, and anti-slip sheets 607 are fixed to the inner sides of the L-shaped fasteners 606, and the anti-slip sheets 607 are abutted against the lower surface of the cross plate 602. Two connecting pieces 608 are fixed to the two ends of the baffle 604, and long slots 609 are provided on the connecting pieces 608. Fixing bolts 610 are fixed to the outer sides of the tilting rods 603 located at the edges, and the fixing bolts 610 pass through the long slots 609 at the corresponding positions, and clamping nuts 611 are threadedly connected to the fixing bolts 610. The two guardrails 605 can be moved at will on the cross plate 602, and can limit the stainless steel water pipes of different lengths. Moreover, through the cooperation of the fixing bolts 610 and the connecting pieces 608, the position of the baffle 604 can be adjusted, so that only one stainless steel water pipe can pass between the baffle 604 and the tilting rod 603, and can adapt to the use of stainless steel water pipes of different diameters.

[0050] The clamping mechanism 5 includes a plurality of circumferentially evenly distributed clamping jaws hinged on the rotating plate 4, the clamping jaws are composed of two clamping rods 501, and the two clamping rods 501 are rotatably connected, a slide groove 502 is provided on the clamping rod 501, a plurality of circumferentially evenly distributed slide rails 503 are fixed on the rotating plate 4, and the number of the slide rails 503 is the same as that of the clamping jaws, a sliding seat 504 is slidably provided on the slide rail 503, two symmetrically distributed wing plates 507 are fixed on the sliding seat 504, a fixing pin 508 is fixed on the wing plate 507, and the fixing pin 508 is slidably provided in the slide groove 502 at the corresponding position, a plurality of fixing plates 505 are fixed on the rotating plate 4, and the fixing plates 505 are located between the slide rails 503 and the clamping jaws at the corresponding position, A compression spring 506 is arranged between the fixed plate 505 and the sliding seat 504, a support seat 510 is fixed to the bottom of the pickling box 1, a cam 509 is fixed to the upper end of the support seat 510, and a through hole is opened in the middle of the cam 509, the rotating shaft 2 passes through the through hole, and the end of the sliding seat 504 away from the clamping jaw abuts against the outer side of the cam 509; when in use, the driving motor 3 drives the rotating shaft 2 to rotate, the rotating plate 4 rotates with the rotating shaft 2, and the cam 509 does not move. When the clamping jaw is at the highest position, its corresponding sliding seat 504 is supported by the position with a larger radius of the cam 509, and the clamping jaw is in an open state. With the rotation of the rotating plate 4, the clamping jaw moves to a position close to the delivery rack 6, and the delivery rack 6 is opened. A stainless steel water pipe on the rack 6 falls between the two clamping rods 501, and then the clamping claw continues to rotate downward. At this time, the corresponding sliding seat 504 gradually approaches the position with a smaller radius of the cam 509. In this process, the compression spring 506 gradually extends and pushes the sliding seat 504 to a position away from the clamping claw. At this time, the two fixing pins 508 drive the two clamping rods 501 to clamp the stainless steel water pipe, and then drive the stainless steel water pipe to rotate. The stainless steel water pipe drops below the level of the pickling liquid, and rises from the other side after soaking for a period of time. At this time, the sliding seat 504 corresponding to the clamping claw is close to the position with a larger radius of the cam 509, and is squeezed by the cam 509, and the sliding seat 504 moves closer to The clamp moves in the direction of the jaws, and through the two fixing pins 508, drives the two clamping rods 501 to expand, and releases the clamping of the stainless steel water pipe. At this time, the stainless steel water pipe is still located inside the clamp and rotates with the rotating plate 4. When the stainless steel water pipe passes through the lifting rod 705, it is squeezed upward by the lifting rod 705 and gradually separates from the clamp, and then slides down along the guide plate 708, and the clamp will continue to clamp the next stainless steel water pipe. Each clamp is cycled in this way, and automatic pickling can be achieved. There is no need for operators to put or take out stainless steel water pipes from the pickling box 1, which reduces the labor intensity of operators and contact with pickling liquid. The pickling process has a high degree of automation and low operating risk.

[0051] The rotating plate 4 is slidably set on the rotating shaft 2, and a fixing ring 511 is fixed on the side of the rotating plate 4 away from the support seat 510, and a plurality of tightening bolts 512 are threadedly connected to the fixing ring 511, and a mounting plate 517 is fixed to the bottom of the pickling box 1, and a plurality of threaded holes 518 are set on the mounting plate 517, and the support seat 510 is fixedly connected to the mounting plate 517 by bolts; the rotating plate 4 can be fixed to any position on the rotating shaft 2 by tightening the bolts 512, and the support seat 510 is fixed by bolts and can also change its position. When used in conjunction with the moving rotating plate 4, when the stainless steel water pipe is longer, the distance between the two rotating plates 4 can be increased to improve the clamping stability of the stainless steel water pipe; when the stainless steel water pipe is shorter, the distance between the two rotating plates 4 can be shortened, thereby improving the application range of the equipment.

[0052] A stopper 514 is fixed to the outer end of the clamping rod 501, and a plurality of fan-shaped plates 513 are fixed to the edge of the rotating plate 4, and the fan-shaped plates 513 are alternately distributed with the clamping claws. A groove 515 is provided on the inner side of the clamping rod 501, and a support rod 516 is fixed to one side wall of the groove 515; when the stainless steel water pipe falls from the delivery rack 6 into the clamping claw, the support rod 516 can support the stainless steel water pipe to ensure the height of the stainless steel water pipe and prevent the next stainless steel water pipe from falling and jamming the equipment. When the clamping claw grabs a stainless steel water pipe and moves away from the delivery rack 6, the stopper 514 and the fan-shaped plate 513 can support the next stainless steel water pipe to prevent the next stainless steel water pipe from falling on the outside of the clamping claw and jamming the equipment. Moreover, when the clamping claw clamps the stainless steel water pipe, the support rod 516 retracts into the groove 515 under the action of the clamping force and will not hinder the clamping of the clamping claw.

[0053] A plurality of circular holes 519 are provided on the rotating plate 4, and removable bolts 520 are inserted into the circular holes 519, and the ends of the removable bolts 520 are threadedly connected with removable nuts 521, and two clamping rods 501 are rotatably set on the removable bolts 520; when pickling stainless steel water pipes of different diameters, the removable bolts 520 and the removable nuts 521 can be removed, and then different types of clamping rods 501 can be replaced, thereby expanding the scope of application of the equipment.

[0054] Slots 710 are provided on both sides of the crossbeam 707, and two clips 709 are fixed at the bottom of the guide plate 708, and the clips 709 are slidably set in the slots 710; in actual use, the guide plate 708 can be slid along the crossbeam 707 to change the spacing between the two guide plates 708. When the stainless steel water pipe is longer, the distance between the two guide plates 708 can be increased to improve the supporting stability of the stainless steel water pipe. When the stainless steel water pipe is shorter, the distance between the two guide plates 708 can be shortened to improve the application range of the equipment.

[0055] A water collecting trough 711 with an opening on one side is fixed to the outer side of the guide plate 708, and the open end of the water collecting trough 711 is located directly above the pickling tank 1; the pickling liquid that has not flowed out on the inner side of the stainless steel water pipe remaining on the guide plate 708 will flow to both sides and fall into the water collecting trough 711, and then flow into the pickling tank 1 again.

[0056] A rotation groove 712 is formed at one end of the guide plate 708 away from the vertical plate, and a swing plate 713 is rotatably arranged in the rotation groove 712. A limiting plate 714 is fixed to the bottom of the swing plate 713, and the limiting plate 714 is against the lower surface of the guide plate 708; when in use, when the stainless steel water pipe rises, the stainless steel water pipe will contact the bottom of the swing plate 713 and lift one end of the swing plate 713 upward. When passing over the swing plate 713, the swing plate 713 is reset under the action of gravity and maintained flush with the guide plate 708 under the action of the limiting plate 714. When the stainless steel water pipe rolls down along the guide plate 708, it will not be against the end of the guide plate 708, causing the equipment to jam, thereby improving the smoothness of the equipment operation.

[0057] The above-mentioned fixing methods are the most commonly used fixing connection methods in this field, such as welding, bolt connection, etc.; the above-mentioned electrical components, such as the drive motor 3, etc., are all existing technology products and can be directly purchased and used in the market, and the specific principles will not be repeated.

[0058] Working principle of the present invention:

[0059] When in use, start the drive motor 3 to drive the rotating shaft 2 and the two rotating plates 4 to rotate, and then put the stainless steel water pipes to be pickled side by side on the tilting rod 603 in turn. Under the action of gravity, the stainless steel water pipes roll downward and are blocked by the baffle 604. The stainless steel water pipes can only move downward one by one. When the clamp is at the highest position, its corresponding sliding seat 504 is supported by the position with a larger radius of the cam 509, and the clamp is in an open state. As the rotating plate 4 rotates, the clamp moves to a position close to the delivery rack 6, and a stainless steel water pipe on the delivery rack 6 falls between the two clamping rods 501. At this time, the support rod 516 can support the stainless steel water pipe to ensure that the stainless steel The height of the water pipe is prevented from the next stainless steel water pipe falling and jamming the equipment. Then the clamping jaws continue to rotate downward, and the block 514 and the fan-shaped plate 513 can support the next stainless steel water pipe to prevent the next stainless steel water pipe from falling on the outside of the clamping jaws and jamming the equipment. At this time, the corresponding sliding seat 504 gradually approaches the position with a smaller radius of the cam 509. In this process, the compression spring 506 gradually extends and pushes the sliding seat 504 to a position away from the clamping jaws. At this time, the two fixing pins 508 drive the two clamping rods 501 to clamp the stainless steel water pipe. The support rod 516 is retracted into the groove 515 under the action of the clamping force, which will not hinder the clamping of the clamping jaws, and then rotate. Plate 4 drives the stainless steel water pipe to rotate, and the stainless steel water pipe drops below the level of the pickling liquid, and rises from the other side after soaking for a period of time. At this time, the sliding seat 504 corresponding to the clamp is close to the position with a larger radius of the cam 509, and is squeezed by the cam 509. The sliding seat 504 moves in the direction close to the clamp, and drives the two clamping rods 501 to unfold through the two fixing pins 508, releasing the clamping of the stainless steel water pipe. At this time, the stainless steel water pipe is still located inside the clamp and rotates with the rotating plate 4. The stainless steel water pipe will contact the bottom of the swing plate 713 and lift one end of the swing plate 713 upward. When it passes over the swing plate 713, the swing plate 713 will return to the original position under the action of gravity. When the stainless steel water pipe passes through the lifting rod 705, it is squeezed upward by the lifting rod 705 and gradually separates from the clamping jaws, and then slides down along the swing plate 713 and the guide plate 708, while the clamping jaws will continue to clamp the next stainless steel water pipe. Each clamping jaw cycles in this way, and the unused pickling liquid on the inside of the stainless steel water pipe staying on the guide plate 708 will flow to both sides and fall into the sump 711, and then flow into the pickling tank 1 again, realizing automatic pickling. There is no need for operators to put in or take out stainless steel water pipes from the pickling tank 1, reducing the labor intensity of operators and contact with pickling liquid. The pickling process has a high degree of automation and low operating risk.

[0060] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A pickling device for producing stainless steel water pipes, comprising a pickling tank (1) filled with a pickling liquid, characterized in that: The pickling box (1) has a water inlet pipe and a water outlet pipe connected to its side wall. A rotating shaft (2) is rotatably arranged inside the pickling box (1). A driving motor (3) for driving the rotating shaft (2) is installed on the outside of the pickling box (1). Two rotating plates (4) are fixed to the rotating shaft (2). A clamping mechanism (5) is provided on the rotating plates (4). A delivery rack (6) is provided on one side of the pickling box (1). A collecting rack (7) is provided on the other side of the pickling box (1). The delivery rack (6) comprises a first bracket (601). A plurality of transverse plates (602) are fixed to the upper end of the first bracket (601). A plurality of tilting rods (603) distributed at equal intervals are fixed to the transverse plates (602). A baffle (604) is fixed to the end of the tilting rod (603). The collecting rack (7) includes a first bracket (601). The pickling box (1) comprises two tripods (701) fixed on the side wall of the pickling box (1), a fixed tube (702) is fixed between the two tripods (701), a long groove (703) is opened on the side wall of the fixed tube (702), a slider (704) is slidably arranged inside the fixed tube (702), a lifting rod (705) is fixed on the slider (704), and the lifting rod (705) is tilted downward in a direction away from the delivery rack (6), a second bracket (706) is arranged on the side of the pickling box (1) away from the delivery rack (6), a crossbeam (707) is arranged on the second bracket (706), two symmetrically distributed guide plates (708) are arranged on the crossbeam (707), and vertical plates are fixed at the ends of the guide plates (708), and the clamping mechanism (5) comprises The invention comprises a plurality of circumferentially evenly distributed clamping jaws hinged on a rotating plate (4), the clamping jaws being composed of two clamping rods (501), and the two clamping rods (501) being rotatably connected, a slide groove (502) being provided on the clamping rod (501), a plurality of circumferentially evenly distributed slide rails (503) being fixed on the rotating plate (4), and the number of the slide rails (503) being the same as that of the clamping jaws, a slide seat (504) being slidably provided on the slide rails (503), two symmetrically distributed wing plates (507) being fixed on the slide seat (504), a fixing pin (508) being fixed on the wing plate (507), and the fixing pin (508) being slidably provided in the slide groove (502) at a corresponding position, a plurality of fixing plates (505) being fixed on the rotating plate (4), and the fixing plates (505) being located on the slide rails (503) at corresponding positions. 03) and the clamping jaws, a compression spring (506) is arranged between the fixed plate (505) and the sliding seat (504), a support seat (510) is fixed to the bottom of the pickling box (1), a cam (509) is fixed to the upper end of the support seat (510), and a through hole is opened in the middle of the cam (509), the rotating shaft (2) passes through the through hole, and the end of the sliding seat (504) away from the clamping jaws is against the outer side of the cam (509), a stopper (514) is fixed to the outer end of the clamping rod (501), a plurality of fan-shaped plates (513) are fixed to the edge of the rotating plate (4), and the fan-shaped plates (513) and the clamping jaws are distributed alternately, a groove (515) is opened on the inner side of the clamping rod (501), and a support rod (516) is fixed to the side wall of one side of the groove (515),The guide plate (708) is provided with a rotation groove (712) at one end away from the vertical plate, and a swing plate (713) is rotatably arranged in the rotation groove (712). A limit plate (714) is fixed at the bottom of the swing plate (713), and the limit plate (714) abuts against the lower surface of the guide plate (708).

2. A pickling equipment for stainless steel water pipe production according to claim 1, characterized in that: The delivery rack (6) further comprises two fences (605), two L-shaped fasteners (606) are fixed at the bottom of the fences (605), and an anti-slip sheet (607) is fixed on the inner side of the L-shaped fastener (606), and the anti-slip sheet (607) is abutted against the lower surface of the horizontal plate (602), two connecting members (608) are fixed at both ends of the baffle (604), and a long slot (609) is opened on the connecting member (608), and a fixing bolt (610) is fixed on the outer side of the tilting rod (603) located at the edge, and the fixing bolt (610) passes through the long slot (609) at the corresponding position, and a clamping nut (611) is threadedly connected to the fixing bolt (610).

3. A pickling equipment for stainless steel water pipe production according to claim 1, characterized in that: The rotating plate (4) is slidably arranged on the rotating shaft (2), and a fixing ring (511) is fixed to a side of the rotating plate (4) away from the supporting seat (510), and a plurality of tightening bolts (512) are threadedly connected to the fixing ring (511). A mounting plate (517) is fixed to the bottom of the pickling box (1), and a plurality of threaded holes (518) are arranged on the mounting plate (517). The supporting seat (510) is fixedly connected to the mounting plate (517) by bolts.

4. A pickling equipment for stainless steel water pipe production according to claim 1, characterized in that: The rotating plate (4) is provided with a plurality of circular holes (519), and detachable bolts (520) are inserted into the circular holes (519). The ends of the detachable bolts (520) are threadedly connected with detachable nuts (521), and the two clamping rods (501) are rotatably arranged on the detachable bolts (520).

5. The pickling equipment for stainless steel water pipe production according to claim 1, characterized in that: The two sides of the crossbeam (707) are provided with card slots (710), and the bottom of the guide plate (708) is fixed with two card buckles (709), and the card buckles (709) are slidably arranged in the card slots (710).

6. A pickling equipment for stainless steel water pipe production according to claim 5, characterized in that: A water collecting trough (711) with an opening on one side is fixed to the outer side of the guide plate (708), and the open end of the water collecting trough (711) is located directly above the pickling tank (1).

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