Automatic pickling solution adding device for circuit board printing

Abstract

The invention discloses an automatic pickling solution adding device for circuit board printing, and relates to the technical field of circuit board printing, the automatic pickling solution adding device comprises a pickling tank and a bent pipe, the bottom end of the bent pipe is fixedly connected with a vertical pipe, the other end of the bent pipe is fixedly connected with a transverse pipe, and the bottom end of the vertical pipe is provided with a sealing assembly; an auxiliary assembly is jointly arranged in the vertical pipe, the bent pipe and the transverse pipe. By arranging the supporting and adjusting assembly, the distance between the sealing block and a pickling solution is kept within a reasonable range, the situation that the pickling solution is splashed too high due to the fact that a pipeline outlet is too high is avoided, the situation that the bottom of the pipeline is corroded too fast due to the fact that the pipeline outlet is too low is avoided, and the pipeline is controlled by the bracket to move stably and longitudinally; the pipeline vibration caused by flowing of the pickling solution in the pipeline is reduced, the pickling solution adding stability is improved, and the pickling solution can be rapidly and evenly mixed through simultaneous adding of the multiple pipelines at different positions of the pickling pool.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board printing, in particular to an automatic adding device for pickling liquid used in circuit board printing. Background Art

[0002] In the process of printing circuit boards, the pickling step is indispensable. It uses pickling liquid to remove oxides, oil stains and other impurities on the surface of the circuit board to ensure the cleanliness of the circuit board surface and the smooth progress of subsequent processes. The function of the automatic pickling liquid adding device is to automatically control the addition of pickling liquid to achieve the continuity and stability of the pickling process, which has a significant impact on improving production efficiency, reducing labor costs and ensuring the quality of circuit boards.

[0003] However, the traditional method of adding pickling liquid is often difficult to accurately control the flow rate of the pickling liquid, which is easy to cause fluctuations in the liquid level in the pickling tank, which not only leads to waste of pickling liquid, but also may cause liquid splashing, increasing operational risks. Secondly, some pickling liquids with high viscosity are easy to form deposits on the inner wall of the conveying pipeline. Long-term accumulation will cause pipeline blockage, affecting the normal flow and addition of the pickling liquid. In addition, the existing device is not flexible enough when adjusting the pickling liquid addition position, and cannot be dynamically adjusted according to the changes in the liquid level and concentration in the pickling tank, which limits the optimization of the pickling effect. For this reason, an automatic pickling liquid adding device for circuit board printing is needed to solve the existing deficiencies. Summary of the invention

[0004] The object of the present invention is to provide an automatic pickling liquid adding device for printed circuit boards. The pickling liquid flow is decomposed into a plurality of smaller flow rates by a sealing component, thereby reducing the liquid surface disturbance caused by the pickling liquid being added into the pickling tank, thereby reducing the splashing of the pickling liquid; the pickling liquid is prevented from continuously adhering to the pipe wall of the vertical pipe by an auxiliary component, thereby ensuring the smooth flow of the pickling liquid, thereby maintaining the addition amount of the pickling liquid within a precise range; the pickling liquid is allowed to better enter the interior of the vertical pipe through the horizontal pipe and be discharged from the outlet of the through hole by a control component; the vibration of the pipeline itself caused by the flow of the pickling liquid inside the pipeline is reduced by a supporting and adjusting component, thereby improving the stability of the addition of the pickling liquid; and the outlet end of the pipeline can be moved to a more solid part of the inner wall of the pickling tank by a toothed ring, thereby preventing more wall skin from falling off when the pickling liquid is added.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an automatic device for adding pickling liquid for printed circuit board printing, comprising a pickling tank and a bent pipe, the bottom end of the bent pipe is fixedly connected with a vertical pipe, and the other end of the bent pipe is fixedly connected with a horizontal pipe, the bottom end of the vertical pipe is provided with a sealing component, the interior of the vertical pipe, the interior of the bent pipe and the interior of the horizontal pipe are jointly provided with an auxiliary component, the outer side of the bent pipe is fixedly connected with a connecting block, and the top of the connecting block is fixedly connected with a control component, and the control component is respectively connected with the auxiliary component and the sealing component, the vertical pipe is located on the inner side of the pickling tank, the outer side of the pickling tank is provided with a support adjustment component, and the support adjustment component is fixedly connected to the vertical pipe and the horizontal pipe.

[0007] The present invention is further configured as follows: the sealing assembly includes a sealing block, a moving block and a connecting rod, the sealing block is fixedly connected to the bottom end of the vertical pipe, the sealing block is provided with a plurality of through holes, and the through holes are distributed in a circular array, the moving block and the connecting rod are both distributed in a circular array, and the moving block is L-shaped, the bottom of the moving block is movably connected to the through hole, and the bottom end of the connecting rod is movably connected to the top end of the moving block through a rotating shaft.

[0008] The present invention is further configured as follows: the auxiliary component includes a rotary rod one, a rotary rod two, a scraper and a spiral leaf, the scraper blades are linearly staggered and distributed, and the scraper blades are fixedly connected to the outside of the rotary rod one, the scraper blades are movably connected to the inside of the vertical tube through the rotary rod one, the outside of the scraper blades is in contact with the inner wall of the vertical tube, the rotary rod two passes through the spiral leaf, and the spiral leaf is movably connected to the inside of the horizontal tube through the rotary rod two.

[0009] The present invention is further configured such that the swivel rod 1 passes through the connecting block, the top end of the swivel rod 1 extends to the top end of the connecting block, and the swivel rod 1 is movably connected to the connecting block, one end of the swivel rod 2 is movably connected to the inside of the connecting block, the outer side of the swivel rod 1 is fixedly connected to the conical wheel 1, and one end of the swivel rod 2 is fixedly connected to the conical wheel 2, and the conical wheel 1 and the conical wheel 2 are meshed.

[0010] The present invention is further configured as follows: the control component includes gear one, gear two, a driving rod and a mounting frame, the rotating rod one passes through gear one, and the rotating rod one is fixedly connected to gear one, the gear two is movably connected to the top end of the connecting block through a rotating shaft, and gear one is meshed with gear two, the mounting frame is fixedly connected to the top end of the connecting block, the driving rod movably passes through the mounting frame, the connecting block and rotating rod one in sequence, and the bottom end of the driving rod is movably connected to the top end of the sealing block, and the end of the connecting rod away from the moving block is movably connected to the outside of the driving rod through a rotating shaft.

[0011] The present invention is further configured such that the control component also includes a hydraulic rod and a servo motor 1, the servo motor 1 is fixedly connected to the inner side of the mounting frame, and the output end of the servo motor 1 is fixedly connected to the rotating shaft of the gear 2, the hydraulic rod is fixedly connected to the top of the mounting frame, and the telescopic end of the hydraulic rod is fixedly connected to the top of the driving rod.

[0012] The present invention is further configured as follows: the support and adjustment assembly includes a bracket, a slide, a movable frame, a fixed block, a limit block and an adjusting rod, the slide is in a concave shape, the bracket passes through the opposite side of the slide, and the bracket is movably connected to the slide, the top end of the movable frame is fixedly connected to one side of the slide, the limit block is fixedly connected to the outside of the movable frame, the bracket is in an L-shape, and the top end of the fixed block is fixedly connected to one end of the top of the bracket, the bottom end of the fixed block is movably connected to the inside of the limit block, the adjusting rod is movably connected to the inside of the limit block through a bearing, the outside of the adjusting rod is provided with a thread, and one end of the adjusting rod is threadedly connected to the inside of the fixed block.

[0013] The present invention is further configured such that the bottom of the bracket is movably connected to the inner side of the pickling tank, a plurality of fixing rings 1 are fixedly connected to the outer side of the bottom of the bracket, the vertical pipe passes through the fixing ring 1, and the vertical pipe is fixedly connected to the fixing ring 1, a plurality of fixing rings 2 are fixedly connected to the top of the bracket, the horizontal pipe passes through the fixing ring 2, and the horizontal pipe is fixedly connected to the fixing ring 2, and the horizontal pipe is located on the inner side of the slide.

[0014] The present invention is further configured as follows: a slide rail is fixed on the top of the pickling tank, and the slide rail is circular. The bottom end of the slide frame is slidably connected to the slide rail. A guide rail is fixedly connected to the outside of the pickling tank. The guide rail passes through the movable frame, and the guide rail is movably connected to the movable frame. The movable frame is L-shaped. A servo motor 2 is fixedly connected to the bottom of the movable frame, and the output end of the servo motor 2 is fixedly connected to the bottom end of the adjusting rod.

[0015] The present invention is further configured such that a gear ring is fixedly connected to the outside of the pickling tank, a driving gear is movably connected to the bottom of the movable frame via a rotating shaft, the gear ring is meshed with the driving gear, a servo motor three is fixedly connected to the bottom of the movable frame, and the output end of the servo motor three is fixedly connected to the rotating shaft of the driving gear.

[0016] The present invention has the following beneficial effects:

[0017] 1. The sealing assembly provided in the present invention moves the driving rod upward, so that the connecting rod at the bottom thereof rotates, and drives the moving block to move close to the driving rod, thereby releasing the seal of the through hole. At this time, the pickling liquid can flow out to the inside of the pickling tank through multiple through holes respectively, and the pickling liquid flow is decomposed into multiple smaller flow rates, thereby reducing the liquid surface disturbance caused by the addition of the pickling liquid to the pickling tank, thereby reducing the splashing of the pickling liquid.

[0018] 2. The present invention provides an auxiliary component, through which the cone wheel 1 is meshed with the cone wheel 2, and when the rotary rod 1 rotates, the rotary rod 2 is driven to rotate synchronously, so that the scraper rotates inside the vertical tube and the spiral blade rotates inside the horizontal tube, which is conducive to allowing the pickling liquid with strong viscosity to flow from the horizontal tube into the vertical tube, and avoids the pickling liquid from continuously adhering to the tube wall of the vertical tube, ensuring the smooth flow of the pickling liquid, thereby keeping the added amount of the pickling liquid within a precise range.

[0019] 3. The present invention starts servo motor 1 through the control component set to drive gear 2 to rotate. Since gear 1 is meshed with gear 2, rotary rod 1 is controlled to rotate inside the vertical tube, and cone wheel 1 is meshed with cone wheel 2 to control rotary rod 2 to rotate synchronously. The lifting and lowering of the driving rod is controlled by the hydraulic rod, so as to control the rotation of the connecting rod, realize the sealing and unblocking of the through hole, so that the pickling liquid can better enter the interior of the vertical tube through the horizontal tube and be discharged from the outlet of the through hole.

[0020] 4. The present invention maintains the distance between the sealing block and the pickling liquid within a reasonable range by providing a support and adjustment component, thereby preventing the pickling liquid from splashing too high due to the pipe outlet being too high, and preventing the pipe outlet from being too low due to the bottom of the pipe corroding too quickly. The bracket controls the stable longitudinal movement of the pipe, reduces the vibration of the pipe itself caused by the flow of pickling liquid inside the pipe, improves the stability of adding the pickling liquid, and uses multiple pipes to add the pickling liquid at different positions in the pickling tank at the same time, which helps to quickly and evenly mix the pickling liquid.

[0021] 5. The present invention provides a gear ring, and the bottom end of the slide is slidably connected to the slide rail, and the movable frame is slidably connected to the guide rail. The driving gear is meshed with the gear ring, and the servo motor three is started to control the driving gear to rotate. At this time, the slide can be controlled to move along the slide rail, and the movable frame can move along the guide rail to adjust the position of the pipeline. If the inside of the pickling tank falls off, the outlet end of the pipeline can be moved to a stronger part of the inner wall of the pickling tank to avoid more wall skin falling off when the pickling liquid is added. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the pickling tank of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the pipeline and its connector of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the explosion structure;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure from another perspective;

[0028] Figure 6 It is a schematic diagram of the structure of the pipeline, sealing component, auxiliary component and control component of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the support and adjustment assembly of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the sealing assembly of the present invention;

[0031] Fig. 9 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0032] Fig.10 For the present invention Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0033] In the figure: 1, pickling tank; 2, elbow; 3, vertical pipe; 4, horizontal pipe; 5, sealing assembly; 501, sealing block; 502, moving block; 503, connecting rod; 6, auxiliary assembly; 601, rotary rod 1; 602, rotary rod 2; 603, scraper; 604, spiral blade; 7, connecting block; 8, control assembly; 801, gear 1; 802, gear 2; 803, driving rod; 804, mounting frame; 805, hydraulic rod; 806, servo motor one; 9, support adjustment assembly; 901, bracket; 902, slide; 903, movable frame; 904, fixed block; 905, limit block; 906, adjustment rod; 10, cone wheel one; 11, cone wheel two; 12, fixed ring one; 13, fixed ring two; 14, slide rail; 15, guide rail; 16, servo motor two; 17, gear ring; 18, drive gear; 19, servo motor three; 20, through hole. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figure 1-10 As shown, the present invention provides a technical solution: an automatic pickling liquid adding device for printed circuit boards, comprising a pickling tank 1 and a bent pipe 2, the bottom end of the bent pipe 2 is fixedly connected with a vertical pipe 3, and the other end of the bent pipe 2 is fixedly connected with a horizontal pipe 4, a sealing component 5 is arranged at the bottom end of the vertical pipe 3, an auxiliary component 6 is arranged in the interior of the vertical pipe 3, the interior of the bent pipe 2 and the interior of the horizontal pipe 4, a connecting block 7 is fixedly connected to the outside of the bent pipe 2, and a control component 8 is fixedly connected to the top of the connecting block 7, and the control component 8 is respectively connected to the auxiliary component 6 and the sealing component 5, the vertical pipe 3 is located on the inner side of the pickling tank 1, a support adjustment component 9 is arranged on the outer side of the pickling tank 1, and the support adjustment component 9 is fixedly connected to the vertical pipe 3 and the horizontal pipe 4.

[0036] Firstly, the tail end of the horizontal pipe 4 is connected to the tank body filled with pickling liquid, and the connection method is that the pipe is deformable, so that the vertical pipe 3 can be adjusted to a certain position along the circumference of the pickling tank 1.

[0037] like Figure 1 and Figure 8 As shown, the sealing assembly 5 includes a sealing block 501, a moving block 502 and a connecting rod 503. The sealing block 501 is fixedly connected to the bottom end of the vertical pipe 3. The sealing block 501 is provided with a plurality of through holes 20, and the through holes 20 are distributed in a circular array. The moving block 502 and the connecting rod 503 are both distributed in a circular array, and the moving block 502 is L-shaped. The bottom of the moving block 502 is movably connected to the through hole 20, and the bottom end of the connecting rod 503 is movably connected to the top end of the moving block 502 through a rotating shaft.

[0038] By moving the driving rod 803 upward, the connecting rod 503 at its bottom end rotates, driving the moving block 502 to move close to the driving rod 803, thereby releasing the seal of the through hole 20. At this time, the pickling liquid can flow out to the interior of the pickling tank 1 through the multiple through holes 20 respectively, decomposing the pickling liquid flow into multiple smaller flow rates, reducing the liquid surface disturbance caused by the addition of the pickling liquid to the pickling tank 1, thereby reducing the splashing of the pickling liquid. Conversely, the driving rod 803 can be used to control the moving block 502 to reset and block the through hole 20, and the pickling liquid is no longer added.

[0039] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the auxiliary component 6 includes a rotary rod 1 601, a rotary rod 2 602, a scraper 603 and a spiral leaf 604. The scraper blades 603 are linearly staggered and fixedly connected to the outer side of the rotary rod 1 601. The scraper blade 603 is movably connected to the inside of the vertical tube 3 through the rotary rod 1 601. The outer side of the scraper blade 603 fits the inner wall of the vertical tube 3. The rotary rod 2 602 passes through the spiral leaf 604, and the spiral leaf 604 is movably connected to the inside of the horizontal tube 4 through the rotary rod 2 602. The rotary rod 1 601 passes through the connecting block 7. The top of the rotary rod 1 601 extends to the top of the connecting block 7, and the rotary rod 1 601 is movably connected to the connecting block 7. One end of the rotary rod 2 602 is movably connected to the inside of the connecting block 7. The outer side of the rotary rod 1 601 is fixedly connected to the cone wheel 10, and one end of the rotary rod 2 602 is fixedly connected to the cone wheel 2 11. The cone wheel 10 and the cone wheel 2 11 are meshed.

[0040] By meshing the cone wheel 10 with the cone wheel 2 11, the rotation of the rotary rod 1 601 drives the rotary rod 2 602 to rotate synchronously, so that the scraper 603 rotates inside the vertical tube 3, and the spiral blade 604 rotates inside the horizontal tube 4, which is conducive to allowing the pickling liquid with strong viscosity to flow from the horizontal tube 4 into the interior of the vertical tube 3, and avoids the pickling liquid from continuously adhering to the tube wall of the vertical tube 3, ensuring the smooth flow of the pickling liquid, thereby keeping the added amount of the pickling liquid within a precise range.

[0041] like Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, the control assembly 8 includes a gear 1 801, a gear 2 802, a driving rod 803 and a mounting bracket 804, the rotating rod 1 601 penetrates the gear 1 801, and the rotating rod 1 601 is fixedly connected to the gear 1 801, the gear 2 802 is movably connected to the top of the connecting block 7 through a rotating shaft, and the gear 1 801 is meshed with the gear 2 802, the mounting bracket 804 is fixedly connected to the top of the connecting block 7, the driving rod 803 movably penetrates the mounting bracket 804, the connecting block 7 and the rotating rod 1 601 in turn, and the bottom of the driving rod 803 is The end is movably connected to the top of the sealing block 501, and the end of the connecting rod 503 away from the moving block 502 is movably connected to the outside of the driving rod 803 through a rotating shaft. The control component 8 also includes a hydraulic rod 805 and a servo motor 806. The servo motor 806 is fixedly connected to the inner side of the mounting frame 804, and the output end of the servo motor 806 is fixedly connected to the rotating shaft of the gear 2 802. The hydraulic rod 805 is fixedly connected to the top of the mounting frame 804, and the telescopic end of the hydraulic rod 805 is fixedly connected to the top of the driving rod 803.

[0042] Servo motor 1 806 is started to drive gear 2 802 to rotate. Since gear 1 801 is meshed with gear 2 802, rotary rod 1 601 is controlled to rotate inside vertical tube 3, and cone wheel 10 is meshed with cone wheel 2 11 to control rotary rod 2 602 to rotate synchronously. The lifting and lowering of driving rod 803 is controlled by hydraulic rod 805 to control the rotation of connecting rod 503, thereby realizing the sealing and unblocking of through hole 20, so that pickling liquid can better enter the interior of vertical tube 3 through horizontal tube 4 and be discharged from the outlet of through hole 20.

[0043] like Figure 1 , Figure 2 , Figure 7 and Fig. 9 As shown, the support adjustment assembly 9 includes a bracket 901, a slide 902, a movable frame 903, a fixed block 904, a limit block 905 and an adjustment rod 906. The slide 902 is in a concave shape, the bracket 901 passes through the opposite side of the slide 902, and the bracket 901 is movably connected to the slide 902. The top of the movable frame 903 is fixedly connected to one side of the slide 902, and the limit block 905 is fixedly connected to the outer side of the movable frame 903. The bracket 901 is in an L shape, and the top of the fixed block 904 is fixedly connected to one end of the top of the bracket 901, and the bottom of the fixed block 904 is movably connected to the inside of the limit block 905. The adjustment rod 906 is movably connected to the inside of the limit block 905 through a bearing. The outer side of the adjustment rod 906 is provided with a thread, and one end of the adjustment rod 906 is threadedly connected to the inside of the fixed block 904. The bottom of the bracket 901 is connected to the pickling tank 1 The inner side is movably connected, the bottom outer side of the bracket 901 is fixedly connected to several fixing rings 12, the vertical pipe 3 passes through the fixing ring 12, and the vertical pipe 3 is fixedly connected to the fixing ring 12, the top of the bracket 901 is fixedly connected with several fixing rings 2 13, the horizontal pipe 4 passes through the fixing ring 2 13, and the horizontal pipe 4 is fixedly connected to the fixing ring 2 13, and the horizontal pipe 4 is located on the inner side of the slide 902, the top of the pickling tank 1 is fixed with a slide rail 14, and the slide rail 14 is circular, and the bottom end of the slide 902 is slidably connected to the slide rail 14, the outer side of the pickling tank 1 is fixedly connected with a guide rail 15, the guide rail 15 passes through the movable frame 903, and the guide rail 15 is movably connected to the movable frame 903, the movable frame 903 is L-shaped, and the bottom of the movable frame 903 is fixedly connected with a servo motor 2 16, and the output end of the servo motor 2 16 is fixedly connected to the bottom end of the adjusting rod 906.

[0044] Since the vertical pipe 3 is fixedly connected to the bracket 901 through the fixing ring 12, and the horizontal pipe 4 is fixedly connected to the bracket 901 through the fixing ring 2 13, the servo motor 2 16 is started to drive the adjustment rod 906 to rotate. Since the adjustment rod 906 is threadedly connected to the fixed block 904, and the limit block 905 limits the moving direction of the fixed block 904, the fixed block 904 can be controlled to move longitudinally upward or downward at this time, thereby controlling the longitudinal movement of the bracket 901, and a laser sensor is set on the outer side of the connecting block 7 to obtain the liquid level height of the pickling tank 1 and the concentration of the pickling solution. , control the dynamic height between the sealing block 501 at the bottom of the bracket 901 and the liquid level of the pickling liquid, so that the distance between the sealing block 501 and the pickling liquid is maintained within a reasonable range, avoiding the pickling liquid splashing too high due to the pipeline outlet being too high, and avoiding the pipeline outlet being too low to cause the bottom of the pipeline to corrode too quickly, and controlling the stable longitudinal movement of the pipeline by the bracket 901 to reduce the vibration of the pipeline itself caused by the flow of pickling liquid inside the pipeline, improve the stability of pickling liquid addition, and use multiple pipelines to add the pickling liquid at different positions of the pickling tank 1 at the same time, which helps to quickly and evenly mix the pickling liquid.

[0045] like Figure 1 and Figure 2 As shown, a gear ring 17 is fixedly connected to the outer side of the pickling tank 1, and a driving gear 18 is movably connected to the bottom of the movable frame 903 through a rotating shaft. The gear ring 17 is meshed with the driving gear 18, and a servo motor three 19 is fixedly connected to the bottom of the movable frame 903, and the output end of the servo motor three 19 is fixedly connected to the rotating shaft of the driving gear 18.

[0046] The bottom end of the slide 902 is slidably connected to the slide rail 14, and the movable frame 903 is slidably connected to the guide rail 15, the driving gear 18 is meshed with the gear ring 17, and the servo motor three 19 is started to control the driving gear 18 to rotate. At this time, the slide 902 can be controlled to move along the slide rail 14, and the movable frame 903 can move along the guide rail 15 to adjust the position of the pipeline. If the inside of the pickling tank 1 falls off, the outlet end of the pipeline can be moved to a stronger part of the inner wall of the pickling tank 1 to avoid more wall skin falling off when the pickling liquid is added.

[0047] Working principle: When in use, first, the tail end of the horizontal pipe 4 is connected to the tank body filled with pickling liquid, so that the pickling liquid fills the interior of the vertical pipe 3, the curved pipe 2 and the horizontal pipe 4, and then, through the hydraulic rod 805, the driving rod 803 can be driven to move upward, so that the connecting rod 503 at its bottom end rotates, driving the moving block 502 to move close to the driving rod 803, and releasing the seal of the through hole 20. At this time, the pickling liquid can flow out to the interior of the pickling tank 1 through the multiple through holes 20 respectively. Conversely, the driving rod 803 can be used to control the moving block 502 to reset and block the through hole 20. At this time, the pickling liquid is no longer added; if the pipeline When the interior of the vertical tube 3 is not filled with pickling liquid, some pickling liquid with strong viscosity adheres to the wall of the vertical tube 3. At this time, the servo motor 1 806 is started to drive the gear 2 802 to rotate. Since the gear 1 801 is meshed with the gear 2 802, the rotary rod 1 601 is controlled to rotate inside the vertical tube 3, and the scraper 603 is driven to rotate inside the vertical tube 3 to scrape off the pickling liquid adhered to the inner wall of the vertical tube 3 to prevent its accumulation and thickening. In addition, when the viscosity of the added pickling liquid is large, the rotary rod 1 601 rotates, causing the cone wheel 10 to rotate synchronously. Since the cone wheel 10 is meshed with the cone wheel 2 11, the rotary rod 2 602 rotates synchronously at this time. , so that the spiral blade 604 rotates inside the horizontal tube 4, reducing the adhesion of the pickling solution and facilitating the flow of the pickling solution; in addition, since the vertical tube 3 is fixedly connected to the bracket 901 through the fixing ring 12, and the horizontal tube 4 is fixedly connected to the bracket 901 through the fixing ring 2 13, the servo motor 2 16 is started to drive the adjustment rod 906 to rotate. Since the adjustment rod 906 is threadedly connected to the fixed block 904, and the limit block 905 limits the moving direction of the fixed block 904, the fixed block 904 can be controlled to move longitudinally upward or downward at this time, thereby controlling the longitudinal movement of the bracket 901, and a The laser sensor obtains the liquid level height of the pickling tank 1 and the concentration of the pickling solution, and controls the dynamic height of the bottom sealing block 501 of the bracket 901 and the liquid level of the pickling solution, so that the distance between the sealing block 501 and the pickling solution is maintained within a reasonable range; in addition, the bottom end of the slide 902 is slidably connected to the slide rail 14, and the movable frame 903 is slidably connected to the guide rail 15, the driving gear 18 is meshed with the gear ring 17, and the servo motor three 19 is started to control the driving gear 18 to rotate. At this time, the slide 902 can be controlled to move along the slide rail 14, and the movable frame 903 can move along the guide rail 15 to adjust the position of the pipeline.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic device for adding pickling liquid for printed circuit board production, comprising a pickling tank (1) and a curved pipe (2), characterized in that: The bottom end of the curved pipe (2) is fixedly connected to a vertical pipe (3), and the other end of the curved pipe (2) is fixedly connected to a horizontal pipe (4). A sealing component (5) is provided at the bottom end of the vertical pipe (3). An auxiliary component (6) is provided inside the vertical pipe (3), inside the curved pipe (2) and inside the horizontal pipe (4). A connecting block (7) is fixedly connected to the outside of the curved pipe (2), and a control component (8) is fixedly connected to the top of the connecting block (7), and the control component (8) is respectively connected to the auxiliary component (6) and the sealing component (5). The vertical pipe (3) is located inside the pickling tank (1), and a supporting and adjusting component (9) is provided outside the pickling tank (1), and the supporting and adjusting component (9) is fixedly connected to the vertical pipe (3) and the horizontal pipe (4).

2. The automatic adding device for pickling liquid for printed circuit board according to claim 1, characterized in that: The sealing assembly (5) comprises a sealing block (501), a moving block (502) and a connecting rod (503); the sealing block (501) is fixedly connected to the bottom end of the vertical pipe (3); the sealing block (501) is provided with a plurality of through holes (20), and the through holes (20) are distributed in a circular array; the moving block (502) and the connecting rod (503) are both distributed in a circular array, and the moving block (502) is L-shaped; the bottom of the moving block (502) is movably connected to the through holes (20), and the bottom end of the connecting rod (503) is movably connected to the top end of the moving block (502) via a rotating shaft.

3. The automatic adding device for pickling liquid for printed circuit board according to claim 2, characterized in that: The auxiliary component (6) comprises a rotary rod (601), a rotary rod (602), a scraper (603) and a spiral leaf (604); the scraper (603) is linearly staggered and distributed, and the scraper (603) is fixedly connected to the outside of the rotary rod (601); the scraper (603) is movably connected to the inside of the vertical tube (3) through the rotary rod (601); the outside of the scraper (603) is in contact with the inner wall of the vertical tube (3); the rotary rod (602) passes through the spiral leaf (604), and the spiral leaf (604) is movably connected to the inside of the horizontal tube (4) through the rotary rod (602).

4. The automatic adding device for pickling liquid for printed circuit board according to claim 3 is characterized in that: The first rotary rod (601) passes through the connecting block (7), the top end of the first rotary rod (601) extends to the top end of the connecting block (7), and the first rotary rod (601) is movably connected to the connecting block (7), one end of the second rotary rod (602) is movably connected to the inside of the connecting block (7), the outer side of the first rotary rod (601) is fixedly connected to the first cone wheel (10), and one end of the second rotary rod (602) is fixedly connected to the second cone wheel (11), and the first cone wheel (10) and the second cone wheel (11) are meshed.

5. The automatic adding device for pickling liquid for printed circuit board according to claim 4, characterized in that: The control assembly (8) comprises a gear 1 (801), a gear 2 (802), a driving rod (803) and a mounting frame (804); the rotating rod 1 (601) passes through the gear 1 (801), and the rotating rod 1 (601) is fixedly connected to the gear 1 (801); the gear 2 (802) is movably connected to the top of the connecting block (7) through a rotating shaft, and the gear 1 (801) and the gear 2 (802) are meshed; the mounting frame (804) is fixedly connected to the top of the connecting block (7); the driving rod (803) movably passes through the mounting frame (804), the connecting block (7) and the rotating rod 1 (601) in sequence, and the bottom end of the driving rod (803) is movably connected to the top of the sealing block (501); and the end of the connecting rod (503) away from the moving block (502) is movably connected to the outer side of the driving rod (803) through a rotating shaft.

6. The automatic adding device for pickling liquid for printed circuit board according to claim 5, characterized in that: The control assembly (8) further comprises a hydraulic rod (805) and a servo motor 1 (806), wherein the servo motor 1 (806) is fixedly connected to the inner side of the mounting frame (804), and the output end of the servo motor 1 (806) is fixedly connected to the rotating shaft of the gear 2 (802), the hydraulic rod (805) is fixedly connected to the top end of the mounting frame (804), and the telescopic end of the hydraulic rod (805) is fixedly connected to the top end of the driving rod (803).

7. The automatic adding device for pickling liquid for printed circuit board according to claim 6, characterized in that: The support adjustment assembly (9) comprises a bracket (901), a slide (902), a movable frame (903), a fixed block (904), a limit block (905) and an adjustment rod (906); the slide (902) is in a concave shape; the bracket (901) passes through opposite sides of the slide (902); the bracket (901) and the slide (902) are movably connected; the top end of the movable frame (903) is fixedly connected to one side of the slide (902); the limit block (905) is fixedly connected to The bracket (901) is L-shaped on the outside of the movable frame (903), and the top end of the fixed block (904) is fixedly connected to the top end of the bracket (901), the bottom end of the fixed block (904) is movably connected to the inside of the limit block (905), and the adjustment rod (906) is movably connected to the inside of the limit block (905) through a bearing. The outer side of the adjustment rod (906) is provided with a thread, and one end of the adjustment rod (906) is threadedly connected to the inside of the fixed block (904).

8. The automatic adding device for pickling liquid for printed circuit board according to claim 7, characterized in that: The bottom of the bracket (901) is movably connected to the inner side of the pickling tank (1); the outer side of the bottom of the bracket (901) is fixedly connected to a plurality of fixing rings (12); the vertical pipe (3) passes through the fixing ring (12), and the vertical pipe (3) is fixedly connected to the fixing ring (12); the top of the bracket (901) is fixedly connected to a plurality of fixing rings (13); the horizontal pipe (4) passes through the fixing ring (13), and the horizontal pipe (4) is fixedly connected to the fixing ring (13); and the horizontal pipe (4) is located on the inner side of the slide (902).

9. The automatic adding device for pickling liquid for printed circuit board according to claim 8, characterized in that: A slide rail (14) is fixed on the top of the pickling tank (1), and the slide rail (14) is circular. The bottom end of the slide frame (902) is slidably connected to the slide rail (14). A guide rail (15) is fixedly connected to the outer side of the pickling tank (1). The guide rail (15) passes through the movable frame (903), and the guide rail (15) is movably connected to the movable frame (903). The movable frame (903) is L-shaped. A servo motor 2 (16) is fixedly connected to the bottom of the movable frame (903), and the output end of the servo motor 2 (16) is fixedly connected to the bottom end of the adjustment rod (906).

10. The automatic adding device for pickling liquid for printed circuit board according to claim 9, characterized in that: The outer side of the pickling tank (1) is fixedly connected with a gear ring (17), the bottom of the movable frame (903) is movably connected with a driving gear (18) via a rotating shaft, the gear ring (17) is meshed with the driving gear (18), the bottom of the movable frame (903) is fixedly connected with a servo motor three (19), and the output end of the servo motor three (19) is fixedly connected to the rotating shaft of the driving gear (18).

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