Contact support chemical silver plating equipment

Abstract

The invention relates to the technical field of material plating, in particular to contact support chemical silver plating equipment which comprises a support, a liquid containing barrel and a silver plating mechanism. The liquid containing cylinder is installed on the support and filled with silver liquid. The silver plating mechanism comprises a plurality of blades and a plurality of plating barrels, the blades can revolve in the vertical direction, the blades and the plating barrels are arranged in a one-to-one correspondence mode, and the plating barrels can revolve in the vertical direction along with the blades arranged correspondingly and can rotate around the axes of the plating barrels. According to the chemical silver plating equipment for the contact support, the silver plating mechanism is arranged, the blades rotate to stir silver liquid in the liquid containing barrel, the plating barrel rotationally installed on the blades rotates, the silver liquid in the liquid containing barrel is subjected to the effect of centrifugal force along with rotation of the blades, the surface of the stacked and shielded contact support can be uniformly plated, and the contact support is prevented from being damaged. And while batch plating is realized, the plating efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of material plating, and in particular to a contact support chemical silver plating device. Background Art

[0002] As a key component in electrical equipment, the quality of the surface coating of the contact support directly affects the conductivity, wear resistance and corrosion resistance of the electrical equipment. Silver has excellent conductivity and antioxidant properties, and can maintain stable electrical contact under high current and complex environments. Therefore, silver plating of the contact support is an important means to improve its performance. Among them, chemical silver plating, as a commonly used surface treatment technology, uses chemical reduction or electrochemical deposition methods to form a uniform and dense silver layer on the surface of the substrate, which can not only improve the appearance texture of the substrate, but also enhance its corrosion resistance. In addition, chemical silver plating is simple to operate and low in cost, so it is widely used when plating contact supports.

[0003] However, at present, when plating the contact supports, in order to improve the efficiency of the contact support plating, the traditional silver plating equipment usually places a plurality of contact supports in a plating cylinder for batch processing, but this will make it impossible for the multiple contact supports gathered together to be plated uniformly, resulting in inconsistent thickness of the plating on the surface of the contact supports, which not only affects the appearance, but may also reduce the conductivity and wear resistance of the plating, affecting the quality of the plating. Summary of the invention

[0004] The present invention provides a contact support chemical silver plating device to solve the problem that when the existing silver plating device is silver-plating, a plurality of contact supports are easily piled up and blocked with each other during the plating process, resulting in that the plating solution cannot evenly contact the surface of each contact support, and the plating solution has insufficient fluidity and cannot fully penetrate between the piled contact supports, thereby causing the problem of uneven coating thickness and inconsistent surface roughness.

[0005] A contact support chemical silver plating device of the present invention adopts the following technical scheme: a contact support chemical silver plating device, comprising a bracket, a liquid cylinder and a silver plating mechanism; the liquid cylinder is arranged in a vertical direction and installed on the bracket, and the liquid cylinder is filled with silver liquid; the silver plating mechanism can move up and down relative to the bracket, so that the silver plating mechanism can be immersed in or separated from the liquid cylinder; the silver plating mechanism comprises a plurality of blades and a plurality of plating cylinders, the blades are arranged in a vertical direction, the plurality of blades are evenly distributed around the vertical direction and can revolve around the vertical direction, the blades and the plating cylinders are arranged in a one-to-one correspondence, the plating cylinders are arranged in a vertical direction and installed on the blades arranged correspondingly thereto, a plurality of contact supports to be plated are placed in the plating cylinders, and a plurality of through holes are evenly distributed on the plating cylinders; the plating cylinders can revolve around the vertical direction with the blades arranged correspondingly thereto and can rotate around their own axes.

[0006] Furthermore, it also includes a cover plate, which is installed on the bracket and is located above the liquid cylinder. The cover plate can move up and down on the bracket, and the cover plate can block the upper end of the liquid cylinder when it moves downward. A plurality of blades are evenly distributed around the vertical direction at the lower end of the cover plate and can revolve around the vertical direction. The silver-plating mechanism is rotatably installed on the cover plate and moves up and down synchronously with the cover plate.

[0007] Furthermore, the silver plating mechanism also includes a rotating plate, which is installed below the cover plate so as to be rotatable around a vertical direction, and a plurality of blades are evenly distributed around the vertical direction at the lower end of the rotating plate.

[0008] Furthermore, a mounting plate is fixedly connected to the lower end of the cover plate, a first motor is arranged on the mounting plate, a first bevel gear is arranged on the output shaft of the first motor, a second bevel gear is coaxially and fixedly arranged on the rotating plate, and the first bevel gear is meshed with the second bevel gear.

[0009] Furthermore, the silver-plating mechanism also includes a pitch variable frame, which is located between the mounting plate and the rotating plate. The rotating plate and the pitch variable frame are both rotatably connected to the blades. The blades are wing-shaped structures. In the initial state, the pitch variable frame and the rotating plate are coaxially arranged in the vertical direction, and the pitch variable frame can move in the horizontal direction.

[0010] Furthermore, the pitch variable frame includes an upper ring, a lower ring and a plurality of pitch variable rods. The upper ring is located between the mounting plate and the lower ring. A cylinder is arranged on the mounting plate. The output end of the cylinder is connected to the upper ring so that the upper ring can move in the horizontal direction. A limit ring is coaxially and fixedly arranged on the lower ring. The upper ring can move synchronously with the limit ring in the vertical direction, and the upper ring can rotate relative to the limit ring. A plurality of pitch variable rods are evenly distributed on the lower ring around the vertical direction, and the pitch variable rods are rotationally coordinated with the lower ring. The pitch variable rods are arranged one by one corresponding to the blades, and each pitch variable rod is rotationally connected to the corresponding blade.

[0011] Furthermore, a sealing plate is provided at the upper end of each coating cylinder, and the sealing plate is used to seal the coating cylinder. A first rotating rod is provided at the upper end of the sealing plate, and a first elastic member is sleeved on the first rotating rod, and the first elastic member is arranged along the vertical direction; a limiting block is connected to the upper end of the first elastic member, the first rotating rod is rotatably matched with the limiting block, and the limiting block is connected to its corresponding blade bolt.

[0012] Furthermore, the lower end of each coating cylinder is connected to a rotating block, which can rotate relative to its corresponding coating cylinder and drive its corresponding coating cylinder to move up and down. The rotating block is arranged in the vertical direction, and a plurality of rotating plates are evenly distributed in the circumferential direction of the rotating block, and the rotating plates are spiral.

[0013] Furthermore, the lower end of the rotating block is rotatably connected to the corresponding blade through a second elastic member, the second elastic member is arranged along the vertical direction, and the second elastic member is a spring; a plurality of first spherical protrusions are evenly distributed on the lower end surface of the rotating block around the vertical direction, and a plurality of second spherical protrusions are arranged on the blade around the vertical direction, and the first spherical protrusions and the second spherical protrusions abut against each other.

[0014] Furthermore, the bracket includes a base and a support rod, the support rod is arranged in a vertical direction and fixed on the base, the liquid cylinder is installed on the base, the cover plate is installed on the support rod through a sliding frame, a driving motor is arranged on the sliding frame, a gear is arranged on the output shaft of the driving motor, and a rack is arranged on the support rod, the rack is arranged in a vertical direction and meshes with the gear.

[0015] The beneficial effects of the present invention are as follows: a contact support chemical silver plating device of the present invention is provided with a silver plating mechanism, and during silver plating, a plurality of blades are driven to revolve and rotate in a vertical direction. The rotation of the blades will stir the silver liquid in the liquid holding cylinder, so that the silver liquid is mixed evenly. At the same time, the silver liquid in the plating cylinder can also flow under the action of the blades, thereby enhancing the fluidity of the silver liquid and making the plating of the contact support more uniform. The silver liquid in the liquid holding cylinder will generate a vortex under the action of the blades, thereby causing the plating cylinder rotatably mounted on the blades to rotate under the promotion of the silver liquid, thereby further improving the uniformity and comprehensiveness of the contact between the contact support and the silver liquid at various positions in the circumferential direction of the plating cylinder. As the blades rotate, the silver liquid in the liquid holding cylinder will be acted upon by centrifugal force, thereby enabling the silver liquid to further pass through the gap between the contact supports that are in contact with each other along the radial direction of the plating cylinder, so that the surfaces of the contact supports that are piled up and blocked can also be uniformly plated, thereby improving the efficiency and quality of plating while achieving batch plating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the overall structure of an embodiment of a contact support chemical silver plating device of the present invention; Figure 2 It is a front view of the overall structure of an embodiment of a contact support chemical silver plating device of the present invention; Figure 3 for Figure 2 Sectional view along AA; Figure 4It is a schematic diagram of a partial structure of an embodiment of a contact support chemical silver plating device of the present invention; Figure 5 It is a disassembled diagram of a part of the structure of an embodiment of a contact support chemical silver plating device of the present invention; Figure 6 for Figure 5 The enlarged view of point B in the middle; Figure 7 A schematic diagram of a blade and a plating cylinder of an embodiment of a contact support chemical silver plating device of the present invention; Figure 8 It is a front view of a blade and a plating cylinder of an embodiment of a contact support chemical silver plating device of the present invention; Fig. 9 It is a disassembled diagram of the blades and the plating cylinder of an embodiment of a contact support chemical silver plating device of the present invention; Fig.10 for Fig. 9 Enlarged view of point C in the middle; Fig.11 The present invention is a schematic diagram of a rotating block of an embodiment of a contact support chemical silver plating device of the present invention.

[0018] In the figure: 100, bracket; 110, base; 120, support rod; 130, sliding frame; 200, liquid storage cylinder; 300, cover plate; 310, mounting plate; 311, mounting groove; 320, first motor; 330, first bevel gear; 340, cylinder; 400, silver plating mechanism; 410, blade; 411, second spherical protrusion; 420, coating cylinder; 421, blocking plate; 422, first rotating rod; 423, first elastic member; 424, limiting block; 425, second rotating rod; 426, rotating block; 427, third rotating rod; 428, second elastic member; 429, first spherical protrusion; 430, rotating plate; 431, second bevel gear; 440, pitch changing frame; 441, upper ring; 442, lower ring; 443, pitch changing rod; 444, limiting ring. DETAILED DESCRIPTION

[0019] 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.

[0020] An embodiment of a contact support chemical silver plating device of the present invention is as follows Figures 1 to 11 shown.

[0021] A contact support chemical silver plating device comprises a support 100, a liquid cylinder 200 and a silver plating mechanism 400. The liquid cylinder 200 is arranged in a vertical direction and fixedly mounted on the support 100, and the liquid cylinder 200 is filled with silver liquid.

[0022] The silver plating mechanism 400 can move up and down relative to the bracket 100, so that the silver plating mechanism 400 can be immersed in or out of the liquid holding cylinder 200. The silver plating mechanism 400 includes a plurality of blades 410 and a plurality of plating cylinders 420. The blades 410 are arranged in a vertical direction, and the plurality of blades 410 are evenly distributed around the vertical direction and can revolve and rotate around the vertical direction. The blades 410 and the plating cylinders 420 are arranged one by one. The plating cylinders 420 are arranged in a vertical direction and installed on the blades 410 corresponding thereto. A plurality of contact holders to be plated are placed in the plating cylinders 420, and a plurality of through holes are evenly distributed on the plating cylinders 420, so that the silver liquid can enter the plating cylinders 420. The plating cylinders 420 can revolve and rotate around the vertical direction with the blades 410 corresponding thereto and can rotate around their own axis.

[0023] In this embodiment, a silver plating mechanism 400 is provided. During silver plating, a plurality of contact supports to be plated are first placed in a plating cylinder 420, and then the silver plating mechanism 400 is moved downward, so that the contact supports in the plating cylinder 420 can be immersed in the silver liquid, and plating begins. Then, a plurality of blades 410 are driven to revolve around a vertical direction. The rotation of the blades 410 stirs the silver liquid in the liquid cylinder 200 to mix the silver liquid evenly. At the same time, the silver liquid in the plating cylinder 420 can also flow under the action of the blades 410, thereby enhancing the fluidity of the silver liquid, making the plating of the contact supports more uniform, and the silver liquid in the liquid cylinder 200 will be A vortex is generated under the action of the blade 410, so that the plating cylinder 420 rotatably mounted on the blade 410 rotates under the promotion of the silver liquid, further improving the uniformity and comprehensiveness of the contact between the contact supports at various positions in the circumferential direction of the plating cylinder 420 and the silver liquid. As the blade 410 rotates, the silver liquid in the liquid holding cylinder 200 will be affected by the centrifugal force, so that the silver liquid can further pass through the gap between the contact supports that contact with each other along the radial direction of the plating cylinder 420, so that the surfaces of the accumulated and blocked contact supports can also be evenly plated, thereby improving the efficiency and quality of plating while achieving batch plating.

[0024] In a further embodiment, a contact support chemical silver plating device also includes a cover plate 300, which is installed on the bracket 100 and is located above the liquid cylinder 200. The cover plate 300 can move up and down on the bracket 100, and the cover plate 300 moves downward to block the upper end of the liquid cylinder 200. The silver plating mechanism 400 is rotatably installed on the cover plate 300 and moves up and down synchronously with the cover plate 300.

[0025] Specifically, the bracket 100 includes a base 110 and a support rod 120, the support rod 120 is arranged in a vertical direction and fixed on the base 110, the liquid cylinder 200 is fixedly installed on the base 110, and the cover plate 300 is installed on the support rod 120 through a sliding frame 130. A driving motor is arranged on the sliding frame 130, and a gear is arranged on the output shaft of the driving motor. A rack is arranged on the support rod 120, and the rack is arranged in a vertical direction and meshes with the gear.

[0026] When in use, the drive motor is started to drive the gear to rotate, and the gear rotates and meshes with the rack, so that the gear rotates and moves up and down, thereby moving the sliding frame 130 up and down, and driving the cover plate 300 to move up and down through the sliding frame 130.

[0027] In a further embodiment, the silver plating mechanism 400 further includes a rotating plate 430 , which is installed below the cover plate 300 so as to be rotatable around a vertical direction, and a plurality of blades 410 are evenly distributed around a vertical direction at a lower end of the rotating plate 430 .

[0028] Specifically, the lower end of the cover plate 300 is fixedly connected to a mounting plate 310 , a first motor 320 is arranged on the mounting plate 310 , a first bevel gear 330 is arranged on the output shaft of the first motor 320 , a second bevel gear 431 is coaxially and fixedly arranged on the rotating plate 430 , and the first bevel gear 330 meshes with the second bevel gear 431 .

[0029] By setting the rotating plate 430, when in use, the first motor 320 is started, and the first motor 320 starts to drive the second bevel gear 431 to rotate through the first bevel gear 330, thereby rotating the rotating plate 430, and the rotation of the rotating plate 430 will drive the multiple blades 410 to revolve around the vertical direction.

[0030] In a further embodiment, a blocking plate 421 is provided at the upper end of each coating tube 420, and the blocking plate 421 is used to block the coating tube 420. A first rotating rod 422 is provided at the upper end of the blocking plate 421, and a first elastic member 423 is sleeved on the first rotating rod 422. The first elastic member 423 is provided in the vertical direction, and the first elastic member 423 is a spring. The upper end of the first elastic member 423 is connected to a limit block 424, and the first rotating rod 422 is rotatably matched with the limit block 424, and the limit block 424 is bolted to the corresponding blade 410.

[0031] When it is necessary to place the contact support in the coating cylinder 420, the operator manually tightens the bolts to disassemble the limit block 424 and its corresponding blade 410, then removes the limit block 424 and the sealing plate 421, places the contact support to be plated into the coating cylinder 420, and then covers the sealing plate 421 on the upper end of the coating cylinder 420 to seal the coating cylinder 420, and then uses the bolts to lock the limit block 424 on the blade 410, and uses the limit block 424 to simultaneously lock the sealing plate 421 to achieve sealing of the upper end of the coating cylinder 420.

[0032] In a further embodiment, the silver plating mechanism 400 also includes a pitch variable frame 440, which is located between the mounting plate 310 and the rotating plate 430. The rotating plate 430 and the pitch variable frame 440 are both rotatably connected to the blade 410. The blade 410 is a wing-shaped structure. In an initial state, the pitch variable frame 440 and the rotating plate 430 are coaxially arranged in the vertical direction, and the pitch variable frame 440 can move in the horizontal direction.

[0033] Specifically, the pitch-changing frame 440 includes an upper ring 441, a lower ring 442, and a plurality of pitch-changing pull rods 443. The upper ring 441 is located between the mounting plate 310 and the lower ring 442. The mounting plate 310 is provided with a mounting groove 311. The mounting groove 311 is provided with a cylinder 340. The output end of the cylinder 340 is connected to the upper ring 441, so that the upper ring 441 can move in the horizontal direction. A limit ring 444 is coaxially and fixedly provided on the lower ring 442. A first ring groove is provided on the inner peripheral wall surface of the upper ring 441, and a first protrusion is coaxially provided on the outer peripheral wall surface of the limit ring 444. The first protrusion is annular and rotatably cooperates with the first ring groove, so that the upper ring 441 can move synchronously with the limit ring 444 in the vertical direction, and the upper ring 441 can rotate relative to the limit ring 444. A plurality of pitch-changing rods 443 are evenly distributed on the upper end surface of the lower ring 442 in the vertical direction, and the pitch-changing rods 443 are rotationally matched with the lower ring 442. The pitch-changing rods 443 are arranged one by one with the blades 410, and each pitch-changing rod 443 is rotationally connected with the blade 410 corresponding thereto.

[0034] Furthermore, the lower end of each coating cylinder 420 is connected to a rotating block 426, which can rotate relative to its corresponding coating cylinder 420 and can drive its corresponding coating cylinder 420 to move up and down. The rotating block 426 is arranged in the vertical direction, and a plurality of rotating plates are evenly distributed in the circumferential direction of the rotating block 426, and the rotating plates are spiral.

[0035] Specifically, a second rotating rod 425 is disposed at the lower end of each plating cylinder 420, and a rotating block 426 is connected to the lower end of the second rotating rod 425. A second protrusion is coaxially disposed on the outer peripheral wall surface of the second rotating rod 425, and a second annular groove is provided on the inner peripheral wall surface of the rotating block 426. The second protrusion is annular and rotatably cooperates with the second annular groove, thereby enabling the rotating block 426 to rotate relative to its corresponding plating cylinder and drive its corresponding plating cylinder 420 to move up and down.

[0036] Alternatively, the lower end of each coating cylinder 420 is fixedly connected to a rotating block 426, so that when the rotating block 426 rotates and moves, the rotating block 426 can drive the coating cylinder 420 to move synchronously.

[0037] Furthermore, the lower end of the rotating block 426 is rotatably connected to the corresponding blade 410 through a second elastic member 428, and the second elastic member 428 is arranged along the vertical direction, and the second elastic member 428 is a spring. A plurality of first spherical protrusions 429 are evenly distributed on the lower end surface of the rotating block 426 in the vertical direction, and a plurality of second spherical protrusions 411 are arranged on the blade 410 in the vertical direction, and the first spherical protrusions 429 and the second spherical protrusions 411 abut against each other.

[0038] Specifically, a third rotating rod 427 is disposed at the lower end of the rotating block 426 , and the third rotating rod 427 is rotatably connected to its corresponding blade 410 through a second elastic member 428 .

[0039] In this embodiment, a pitch change frame 440 is provided, and a rotating plate 430, a pitch change frame 440 and a plurality of blades 410 are used to form a cycloidal paddle structure in the prior art. When the first motor 320 is started to drive the rotating plate 430 to rotate, the rotation of the rotating plate 430 will drive the blades 410 to revolve. If the cylinder 340 is not moved, the blades 410 will drive the pitch change rod 443 to rotate synchronously, and drive the lower ring 442 of the pitch change frame 440 to rotate through the pitch change rod 443, so that the lower ring 442 rotates relative to the upper ring 441.

[0040] When the cylinder 340 is started and moves regularly, the cylinder 340 drives the upper ring 441 to move in the horizontal direction, and pulls the variable pitch pull rod 443 on the lower ring 442 through the upper ring 441, and uses the variable pitch pull rod 443 to pull the blade 410, so that the variable pitch frame 440 presents a regular eccentric movement, thereby changing the rotation angle of the blade 410. When the change in the rotation angle of the blade 410 increases the flow speed of the silver liquid passing through the blade 410, it can accelerate the stirring of the silver liquid and give the rotating block 426 a rotation angle. The force of the rotating piece causes the rotating block 426 to rotate relative to the plating cylinder 420. The rotation of the rotating block 426 will cause relative movement between the first spherical protrusion 429 and the second spherical protrusion 411, thereby enabling the rotating block 426 to vibrate up and down, and drive the plating cylinder 420 to vibrate up and down, so that the contact support in the plating cylinder 420 can vibrate, changing its state in the plating cylinder 420, so that the surfaces of the original multiple contact supports that are in contact and squeeze with each other are exposed as much as possible, thereby improving the integrity of the plating and the quality of the plating.

[0041] When the rotating block 426 is fixedly connected to the plating cylinder 420, the rotation of the rotating block 426 will also drive the plating cylinder 420 to rotate synchronously, and the rotation of the plating cylinder 420 can further improve the comprehensiveness of the contact between the contact support and the silver liquid at various positions in the circumferential direction of the plating cylinder 420.

[0042] After the plating is completed, the rotation speed of the first motor 320 can be increased, so that the silver liquid in the liquid cylinder 200 generates a vortex under the action of the blade 410, so that the plating cylinder 420 is separated from the silver liquid as much as possible, that is, in the initial state, the height of the silver liquid in the liquid cylinder 200 is higher than the plating cylinder 420, but it is not full. During the rotation of the first motor 320, the excess silver liquid on the contact support is thrown out by the centrifugal force to prevent plaques from being generated on the workpiece, causing uneven plating, and the thrown silver liquid will fall back into the liquid cylinder 200 to avoid waste, and then the driving motor is started, and the silver plating mechanism 400 is completely lifted out of the liquid cylinder 200 by using the cover plate 300. In order to ensure the quality of the contact support, the first motor 320 can be started again after the silver plating mechanism 400 is lifted out to ensure that the excess silver liquid on the contact support can be completely thrown out. It should be particularly noted that during the plating process, the speed of the first motor 320 is slowly increased to the maximum to ensure that during the plating process, the vortex generated by the silver liquid in the liquid holding cylinder 200 under the action of the blades 410 will not cause the plating cylinder 420 to separate from the silver liquid, that is, during the plating process, the plating cylinder 420 is always in the silver liquid.

[0043] In combination with the above embodiments, the specific working process is as follows: When it is necessary to place the contact support in the coating cylinder 420, the operator manually tightens the bolts to disassemble the limit block 424 and its corresponding blade 410, then removes the limit block 424 and the sealing plate 421, places the contact support to be plated into the coating cylinder 420, and then covers the sealing plate 421 on the upper end of the coating cylinder 420 to seal the coating cylinder 420, and then uses the bolts to lock the limit block 424 on the blade 410, and uses the limit block 424 to simultaneously lock the sealing plate 421 to achieve sealing of the upper end of the coating cylinder 420.

[0044] The driving motor is started, and the driving motor can drive the gear to rotate. The gear rotates and meshes with the rack, so that the gear rotates and moves downward, thereby moving the sliding frame 130 downward, and driving the cover plate 300 downward through the sliding frame 130, so that the contact support in the plating cylinder 420 can be immersed in the silver liquid to start plating.

[0045] The first motor 320 is started, and the first motor 320 drives the second bevel gear 431 to rotate through the first bevel gear 330, thereby rotating the rotating plate 430, and the rotation of the rotating plate 430 drives the plurality of blades 410 to revolve around the vertical direction. When the first motor 320 is started to drive the rotating plate 430 to rotate, the rotation of the rotating plate 430 drives the blades 410 to revolve. If the cylinder 340 is not in motion, the blades 410 will drive the pitch change rod 443 to rotate synchronously, and the pitch change rod 443 drives the lower ring 442 of the pitch change frame 440 to rotate, so that the lower ring 442 rotates relative to the upper ring 441.

[0046] The rotation of the blades 410 will stir the silver liquid in the liquid holding cylinder 200, making the silver liquid mixed evenly. At the same time, the silver liquid in the plating cylinder 420 can also flow under the action of the blades 410, thereby enhancing the fluidity of the silver liquid and making the plating of the contact support more uniform. The silver liquid in the liquid holding cylinder 200 will generate a vortex under the action of the blades 410, thereby causing the plating cylinder 420 rotatably mounted on the blades 410 to rotate under the promotion of the silver liquid, further improving the uniformity and comprehensiveness of the contact between the contact support at various positions in the circumferential direction of the plating cylinder 420 and the silver liquid. As the blades 410 rotate, the silver liquid in the liquid holding cylinder 200 will be affected by centrifugal force, thereby allowing the silver liquid to further pass through the gap between the contact supports that are in contact with each other along the radial direction of the plating cylinder 420, so that the surfaces of the accumulated and blocked contact supports can also be evenly plated.

[0047] When the cylinder 340 is started and moves regularly, the cylinder 340 drives the upper ring 441 to move in the horizontal direction, and pulls the variable pitch pull rod 443 on the lower ring 442 through the upper ring 441, and uses the variable pitch pull rod 443 to pull the blade 410, so that the variable pitch frame 440 presents a regular eccentric movement, thereby changing the rotation angle of the blade 410. When the change in the rotation angle of the blade 410 increases the flow speed of the silver liquid passing through the blade 410, it can accelerate the stirring of the silver liquid and give the rotating block 426 a rotation angle. The force of the rotating piece causes the rotating block 426 to rotate relative to the plating cylinder 420. The rotation of the rotating block 426 will cause relative movement between the first spherical protrusion 429 and the second spherical protrusion 411, thereby enabling the rotating block 426 to vibrate up and down, and drive the plating cylinder 420 to vibrate up and down, so that the contact support in the plating cylinder 420 can vibrate, changing its state in the plating cylinder 420, so that the surfaces of the original multiple contact supports that are in contact and squeeze with each other are exposed as much as possible, thereby improving the integrity of the plating and the quality of the plating.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A contact support chemical silver plating device, characterized in that: It comprises a support, a liquid cylinder and a silver-plating mechanism; the liquid cylinder is arranged in a vertical direction and installed on the support, and is filled with silver liquid; the silver-plating mechanism can move up and down relative to the support so that the silver-plating mechanism can be immersed in or separated from the liquid cylinder; the silver-plating mechanism comprises a plurality of blades and a plurality of plating cylinders, the blades are arranged in a vertical direction, the plurality of blades are evenly distributed around the vertical direction and can revolve around the vertical direction, the blades and the plating cylinders are arranged in a one-to-one correspondence, the plating cylinders are arranged in a vertical direction and installed on the blades arranged correspondingly thereto, a plurality of contact supports to be plated are placed in the plating cylinders, and a plurality of through holes are evenly distributed on the plating cylinders; the plating cylinders can revolve around the vertical direction with the blades arranged correspondingly thereto and can rotate around their own axis.

2. A contact support chemical silver plating device according to claim 1, characterized in that: It also includes a cover plate, which is installed on the bracket and located above the liquid cylinder. The cover plate can move up and down on the bracket, and the cover plate can block the upper end of the liquid cylinder when it moves downward. The silver plating mechanism is rotatably installed on the cover plate and moves up and down synchronously with the cover plate.

3. A contact support chemical silver plating device according to claim 2, characterized in that: The silver plating mechanism also includes a rotating plate, which is installed below the cover plate so as to be rotatable around a vertical direction, and a plurality of blades are evenly distributed around the vertical direction at the lower end of the rotating plate.

4. A contact support chemical silver plating device according to claim 3, characterized in that: The lower end of the cover plate is fixedly connected with a mounting plate, on which a first motor is arranged, on which an output shaft of the first motor is arranged a first bevel gear, and on which a second bevel gear is coaxially and fixedly arranged on the rotating plate, and the first bevel gear meshes with the second bevel gear.

5. The contact support chemical silver plating equipment according to claim 3, characterized in that: The silver-plating mechanism also includes a pitch-changing frame, which is located between the mounting plate and the rotating plate. The rotating plate and the pitch-changing frame are both rotatably connected to the blades. The blades are wing-shaped structures. In the initial state, the pitch-changing frame and the rotating plate are coaxially arranged in the vertical direction, and the pitch-changing frame can move in the horizontal direction.

6. A contact support chemical silver plating device according to claim 5, characterized in that: The pitch-changing frame includes an upper ring, a lower ring and a plurality of pitch-changing rods. The upper ring is located between a mounting plate and a lower ring. A cylinder is arranged on the mounting plate. The output end of the cylinder is connected to the upper ring so that the upper ring can move in the horizontal direction. A limit ring is coaxially and fixedly arranged on the lower ring. The upper ring can move synchronously with the limit ring in the vertical direction, and the upper ring can rotate relative to the limit ring. A plurality of pitch-changing rods are evenly distributed on the lower ring around the vertical direction, and the pitch-changing rods are rotationally coordinated with the lower ring. The pitch-changing rods are arranged one by one corresponding to the blades, and each pitch-changing rod is rotationally connected to the corresponding blade.

7. A contact support chemical silver plating device according to claim 1, characterized in that: A sealing plate is provided at the upper end of each coating cylinder, and the sealing plate is used to seal the coating cylinder. A first rotating rod is provided at the upper end of the sealing plate, and a first elastic member is sleeved on the first rotating rod, and the first elastic member is arranged along the vertical direction; the upper end of the first elastic member is connected to a limiting block, the first rotating rod is rotatably matched with the limiting block, and the limiting block is connected to its corresponding blade bolt.

8. The contact support chemical silver plating equipment according to claim 1, characterized in that: The lower end of each coating cylinder is connected to a rotating block, which can rotate relative to its corresponding coating cylinder and drive its corresponding coating cylinder to move up and down. The rotating block is arranged in the vertical direction, and a plurality of rotating sheets are evenly distributed in the circumferential direction of the rotating block, and the rotating sheets are spiral.

9. A contact support chemical silver plating device according to claim 8, characterized in that: The lower end of the rotating block is rotatably connected to the corresponding blade through a second elastic member, and the second elastic member is arranged along the vertical direction, and the second elastic member is a spring; a plurality of first spherical protrusions are evenly distributed on the lower end surface of the rotating block around the vertical direction, and a plurality of second spherical protrusions are arranged on the blade around the vertical direction, and the first spherical protrusions and the second spherical protrusions abut against each other.

10. The contact support chemical silver plating equipment according to claim 2, characterized in that: The bracket includes a base and a support rod, the support rod is arranged in a vertical direction and fixed on the base, the liquid cylinder is installed on the base, the cover plate is installed on the support rod through a sliding frame, a driving motor is arranged on the sliding frame, a gear is arranged on the output shaft of the driving motor, and a rack is arranged on the support rod, the rack is arranged in a vertical direction and meshes with the gear.

Images