CN212270255U - Rotating wheel, electroplating liquid medicine spraying mechanism and rotary electroplating device - Google Patents

Abstract

The utility model discloses a swiveling wheel, an electroplating liquid medicine spraying mechanism and a rotary electroplating device, wherein the rotary electroplating device comprises a base, an electroplating liquid medicine spraying mechanism and a material belt tensioning device, the electroplating liquid medicine spraying mechanism comprises a swiveling wheel, an anode water bag, a liquid medicine spraying block and a reflux groove, the liquid medicine spraying block is provided with a liquid medicine spraying nozzle, the liquid medicine spraying nozzle is externally provided with a swiveling wheel rotating around the liquid medicine spraying nozzle, the swiveling wheel is provided with a limiting hole, and liquid medicine can be sprayed onto the material belt through the limiting hole; the material belt tensioning device is fixedly arranged on the base, and the material belt is attached to the circumferential surface of the rotating wheel through the material belt tensioning device. The restricted aperture is hugged closely in the material area, and the liquid medicine that electroplates and spout the liquid medicine mechanism and spout is electroplated on the material area through the restricted aperture, and the flow of accurate control liquid medicine has practiced thrift the gold cost, and the restricted aperture is hugged closely in the material area, and the distance of electroplating on the material area after liquid medicine sprays out from the restricted aperture is very short, disperses very fewly for the gold district boundary line is very neat.

Description

Rotating wheel, electroplating liquid medicine spraying mechanism and rotary electroplating device

Technical Field

The utility model relates to an electroplate technical field, concretely relates to swiveling wheel, electroplate liquid medicine mechanism and rotatory electroplating device.

Background

Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material product by using the action of electrolysis, thereby having the effects of preventing metal oxidation (such as corrosion), improving wear resistance, conductivity, light reflection, corrosion resistance (such as copper sulfate and the like), enhancing the appearance and the like. The outer layer of many coins is also plated. Electroplating technology has developed today and is becoming a very important modern process technology, which has long been not just a means of metal surface protection and decorative finishing, although protective and decorative electroplating still accounts for a significant proportion of electroplating processes. The functional application of electroplating is more and more extensive, and especially, the functional electroplating technology is largely adopted in the fields of electronic industry, communication, military industry, aerospace and the like.

When electroplating terminal products, different product customers have different requirements on gold-plated areas, the prior art adopts a brush platform to carry out electroplating in a brush plating mode, the brush platform comprises a cover head and brush cloth, in the electroplating process, the cover head is wrapped by the brush cloth, liquid medicine is beaten up from the cover head, and electroplating is carried out in a mode that the cover head is used as an anode and a terminal is used as a cathode. In the brush plating process, in order to meet the requirement of a customer on the sufficient thickness of a gold measuring point film, the customer only needs the gold measuring point film with the thickness of 1mm but electroplates a gold area with the thickness of more than 2mm to meet the requirement of the sufficient thickness of the gold measuring point film, gold waste is caused, cost is greatly improved, and the brush plating mode is adopted to control an electroplating area, so that the flow of a liquid medicine is required to be controlled, the liquid medicine flow is overlarge, the gold area is enlarged, the cost is increased, the flow is too small, the electroplating liquid medicine is not well exchanged to cause gold scorching, the efficiency is low, in order to control gold cost, the electroplating is often carried out in a mode of small flow and low production speed, the capacity is low, and the customer with the appearance requirement often complains about the irregular.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to solve the problem that the balance between the flow of the liquid medicine and the electroplating area is difficult to be solved by the existing brush plating; and the gold area boundary is not neat.

In order to solve the technical problem, on the one hand, the utility model provides a:

the utility model provides a swiveling wheel for restriction fluid flow and adjustment fluid jet position, include the rotary die body and overlap in proper order and locate first spacer ring, solid fixed ring, second spacer ring, play water ring, manger plate ring on it, radially be equipped with the opening on the rotary die body, it is equipped with the restricted aperture on the play water ring, the opening with the restricted aperture aligns, first spacer ring adjustment gu fixed ring's position, second spacer ring adjustment go out the position of water ring, second spacer ring reaches the manger plate ring blocks the fluid of play water ring both sides.

According to the rotating wheel, the material belt is tightly attached to the flow limiting hole of the rotating wheel, and the sprayed fluid is electroplated on the material belt through the flow limiting hole, so that the electroplating area of the fluid is accurately limited, the gold waste is avoided, and the gold cost is saved; the rotating wheel is adopted to control the electroplating area, and the electroplating area does not need to be controlled through flow, so that the electroplating can be carried out by adopting a large-flow fluid, the balance problem between the flow of the fluid and the electroplating area is solved, and the productivity is greatly improved; the material belt is tightly attached to the flow limiting hole, the distance from the fluid sprayed out of the flow limiting hole to the material belt in an electroplating mode is short, the divergence is very small, and the gold area boundary line is very neat.

Furthermore, sealing rings are arranged on two sides of the flow limiting hole on the water outlet ring. Sealing rings are arranged on two sides of the flow limiting hole, so that fluid is not easy to seep out from a gap between the water outlet ring and the material belt, and the sealing rings are made of room temperature vulcanized silicone rubber.

Furthermore, the fixing ring is provided with protruding particles. The protruding particles on the fixing ring are used for being clamped in the grooves or holes of the material belt, so that the material belt is not easy to slip on the rotating wheel.

On the other hand, the utility model also provides an electroplate liquid medicine mechanism for spray liquid medicine to the material area, include: the rotating wheel further comprises an anode water bag, a medicine spraying water block and a backflow groove, wherein a medicine spraying water port is formed in the medicine spraying water block, the medicine spraying water block is fixedly arranged on the anode water bag, a shaft is fixedly arranged on the anode water bag, the rotating wheel is rotatably sleeved on the shaft and covers the medicine spraying water port, the rotating wheel can rotate around the medicine spraying water port, and the medicine spraying water port is used for spraying medicine liquid to a material belt; the liquid medicine that does not spray on the material area flows back to through the inner wall of swiveling wheel the backwash tank, the liquid medicine in the backwash tank flows back to in the positive pole water pocket. The liquid medicine which is not sprayed to the material belt is collected by the backflow groove and flows into the anode water sac, so that the liquid medicine is saved, no waste is generated, and the electroplating cost is greatly reduced.

Further, the spraying water block is fan-shaped. The fan-shaped structure enables the distance between the sprayed liquid medicine and the material belt to be relatively even.

In another aspect, the utility model discloses still provide a rotatory electroplating device simultaneously, include as above electroplating spout liquid medicine mechanism, still include base and material area overspeed device tensioner, electroplating spout liquid medicine mechanism set firmly in on the base, material area overspeed device tensioner set firmly in on the base, the material area passes through material area overspeed device tensioner pastes and leans on the circumferential surface of swiveling wheel. The material belt tensioning device enables the material belt to be tightly attached to the flow limiting hole of the rotating wheel, and liquid medicine can be neatly and uniformly electroplated on the material belt.

Furthermore, the material belt tensioning device comprises a plurality of material belt guide wheels, a central shaft of the plurality of material belt guide wheels is fixedly arranged on the base, and a material belt is attached to the circumferential surface of the rotating wheel through the plurality of material belt guide wheels.

Furthermore, the rotary electroplating device also comprises a belt pressing mechanism, the belt pressing mechanism comprises a belt and belt guide wheels, the central shafts of the belt guide wheels are fixedly arranged on the base, and the belt bypasses the belt guide wheels and presses the material belt against the circumferential surface of the rotating wheel. The belt presses the material area at the circumferential surface of swiveling wheel for the material area can paste tight swiveling wheel and not skid, thereby makes the plating layer even, and the belt can also block that liquid medicine sprays out from the hole in material area.

Further, the belt pressing mechanism comprises a belt tensioning wheel. The belt tensioning wheel can be adjusted in position in a sliding mode in the direction perpendicular to the belt, so that the tightness of the belt can be adjusted, and the belt is kept in a pressing state on the material belt.

The rotary die body passes through bearing and the epaxial axle swivelling joint of positive pole water pocket, and the rotary die body keeps fixed with the position relation who spouts the liquid medicine piece, gu fixed ring is used for fixing the material area on the swiveling wheel, gu fixed ring's position is adjusted through the first spacer ring of different specifications, in order to satisfy the fixed of different material areas on solid fixed ring, go out the position of water ring through the second spacer ring adjustment of different specifications, in order to guarantee that the position of water ring aligns with the current-limiting hole on the rotary die body all the time, go out the regional size of liquid medicine through the play water ring adjustment of different specifications, in order to electroplate the region of variation in size in the material area, through first spacer ring, the cooperation of second spacer ring and play water ring is used, satisfy the electroplating in different material areas.

Compared with the prior art, the beneficial effects of the utility model are that:

1. adopt rotatory electroplating device, through the accurate control flow of restricted aperture on the swiveling wheel, compare prior art and use little flow when adopting the brush platform to brush and plate, electroplate with the fast mode of low yield, improved work efficiency greatly, saved manpower and time.

2. The material belt is tightly attached to the flow limiting hole, the distance from the liquid medicine sprayed out from the flow limiting hole to the material belt after electroplating is short, the divergence is very small, and the gold area boundary line is very neat.

3. The belt presses the material area against the circumferential surface of the rotating wheel for the material area can be hugged closely the rotating wheel and not skid, and the belt can also block that liquid medicine sprays out from the hole in material area.

4. The return tank collects the liquid medicine that does not spray the material area and flows into in the positive pole water pocket, has practiced thrift liquid medicine, does not produce the waste, greatly reduced the cost of electroplating.

5. The first spacing ring, the second spacing ring and the water outlet ring are matched for use, so that the electroplating of different material belts is met.

6. The whole mechanism has simple and reliable structure and strong applicability, and greatly promotes the development of electroplating technology.

Drawings

Fig. 1 is a schematic plan view of the present invention;

FIG. 2 is a sectional view of the electroplating solution spraying mechanism of the present invention;

fig. 3 is a schematic perspective view of the rotating wheel of the present invention.

Reference numerals:

1-a base;

2-electroplating liquid medicine spraying mechanism, 2 a-spraying water gap, 21-rotating wheel, 211-rotating die body, 2111-positioning step, 212-first spacing ring, 213-fixing ring, 2131-protruding particles, 214-second spacing ring, 215-water outlet ring, 216-water retaining ring, 217-sealing ring, 21 a-flow limiting hole, 21 b-flow hole, 22-anode water bag, 23-spraying water block, 24-reflux groove and 25-shaft;

3-a material belt tensioning device, 31-a material belt guide wheel;

4-a belt pressing mechanism, 41-a belt, 42-a belt guide wheel and 43-a belt tensioning wheel;

100-material belt.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or structures must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.

Referring to fig. 1, the rotary electroplating apparatus provided in this embodiment performs electroplating by using a material tape 100 as a cathode and a chemical solution as an anode, and includes: base 1, electroplating spout liquid medicine mechanism 2 and material area overspeed device tensioner 3.

Referring to fig. 2 and 3, the electroplating solution spraying mechanism 2 is fixed on the base 1, and the electroplating solution spraying mechanism 2 has a solution spraying port 2a for spraying solution onto the strip 100; the rotary wheel 21 rotating around the spraying nozzle 2a is provided outside the spraying nozzle 2a, and the rotary wheel 21 is provided with a flow restriction hole 21a through which the chemical can be sprayed onto the strip 100. In this embodiment, electroplating spouts liquid medicine mechanism 2 still includes positive pole water pocket 22, spout medicine water block 23 and backward flow groove 24, spout medicine mouth of a river 2a and locate on spouting medicine water block 23, spout medicine water block 23 and set firmly on positive pole water pocket 22, positive pole water pocket 22 sets firmly on base 1 and positive pole water pocket 22 and has set firmly axle 25, rotatory cover of swiveling wheel 21 is located on axle 25 and is covered and spout medicine mouth of a river 2a, the liquid medicine that does not spray on material area 100 flows back to backward flow groove 24 through the inner wall of swiveling wheel 21, the liquid medicine in the backward flow groove 24 flows back to in the positive pole water pocket 22. Specifically, the spraying water block 23 is a fan shape, and the fan shape structure makes the distance between the sprayed liquid medicine and the material belt 100 relatively even. The liquid medicine which is not sprayed on the material belt 100 is collected by the return groove 24 and flows into the anode water sac 22, so that the liquid medicine is saved, no waste is generated, and the electroplating cost is greatly reduced.

Referring to fig. 3, the rotating wheel 21 includes a rotating mold body 211, and a first spacing ring 212, a fixing ring 213, a second spacing ring 214, a water outlet ring 215, and a water retaining ring 216 sequentially sleeved thereon.

The rotary die body 211 is provided with flow holes 21b in a radial direction, and specifically, the flow holes 21b are provided in the radial direction of the rotary die body 211 and are uniformly distributed on the circumference of the rotary die body 211. The rotary die body 211 is rotatably connected with the shaft 25 on the anode water bag 22 through a bearing, and the positional relationship between the rotary die body 211 and the pesticide spray water block 23 is kept fixed. A positioning step 2111 is provided on the side of the rotary die body 211 remote from the circulation hole 21 b.

The first spacer ring 212 is used to adjust the position of the fixed ring 213. The position of the fixing ring 213 is adjusted by the first spacing rings 212 with different specifications to satisfy the fixing of different tapes 100 on the fixing ring 213. Specifically, the first spacer ring 212 is sleeved on the rotary mold body 211, and an end surface of the first spacer ring 212 abuts against the positioning step 2111 on the rotary mold body 211.

The fixing ring 213 is used to fix the tape 100 to the rotating wheel 21. Specifically, the fixing ring 213 is provided with protruding particles 2131, and the protruding particles 2131 on the fixing ring 213 are used to be caught in the grooves or holes of the material tape 100, so that the material tape 100 is not easy to slip on the rotating wheel 21. The fixing ring 213 is sleeved on the rotating mold body 211, and one end surface of the fixing ring 213 abuts against the other end surface of the first spacing ring 212.

The second spacer ring 214 is used for adjusting the position of the water outlet ring 215, and the water outlet ring 215 is provided with a flow restriction hole 21 a. The position of the water outlet ring 215 is adjusted by the second spacer ring 214 with different specifications to ensure that the position of the flow restriction hole 21a on the water outlet ring 215 is always aligned with the flow through hole 21b on the rotary die body 211. The second spacing ring 214 is sleeved on the rotating mold body 211, and one end surface of the second spacing ring 214 abuts against the other end surface of the fixing ring 213.

The flow restriction holes 21a are arranged along the radial direction of the water outlet ring 215 and are uniformly distributed on the circumference of the water outlet ring 215. Sealing rings 217 are further arranged on two sides of the upper limit flow hole 21a of the water outlet ring 215, the sealing rings 217 are arranged on two sides of the flow limit hole 21a, so that liquid medicine is not prone to seeping out from a gap between the water outlet ring 215 and the material belt 100, and the sealing rings 217 are made of room temperature vulcanized silicone rubber. The flow aperture 21b is aligned with the flow restriction aperture 21 a. The size of the liquid medicine discharging area is adjusted by the water discharging rings 215 with different specifications so as to plate the areas with different sizes on the material belt 100. The water outlet ring 215 is sleeved on the rotary mold body 211, and one end surface of the water outlet ring 215 is abutted against the other end surface of the second spacing ring 214.

The water retaining ring 216 and the second spacer ring 214 retain the liquid medicine on both sides of the water outlet ring 215. The water retaining ring 216 is sleeved on the rotary mold body 211, and one end surface of the water retaining ring 216 abuts against the other end surface of the water outlet ring 215.

The first spacing ring 212, the second spacing ring 214 and the water outlet ring 215 are matched for use, so that the electroplating requirements of different material belts 100 are met.

The rotating wheel 21 is not limited to be used in the technical field of electroplating, but can be widely applied to the technical field of fluid spraying, such as air spraying and atomization spraying, when the rotating wheel 21 is adopted, only a spraying port is required to be fixed in the rotating wheel 21, a material to be sprayed is tightly attached to the flow limiting hole 21a, the material to be sprayed drives the rotating wheel 21 to rotate, and meanwhile, the spraying port sprays paint, so that a spraying line is uniform and tidy, a spraying area is not required to be controlled by controlling the flow, and the spraying efficiency is greatly improved.

The material belt tensioning device 3 comprises a plurality of material belt guide wheels 31, a central shaft of the plurality of material belt guide wheels 31 is fixedly arranged on the base 1, and the material belt 100 is attached to the circumferential surface of the rotating wheel 21 through the plurality of material belt guide wheels 31, so that the area to be plated on the material belt 100 is aligned to the flow limiting hole 21 a. During electroplating, the strip 100 moves forward under the guidance of the strip guide wheel 31, and the rotating wheel 21 is driven to rotate under the assistance of the fixing ring 213 during the forward movement, so that the liquid medicine sprayed out of the flow limiting hole 21a is uniformly sprayed on the area to be electroplated of the strip 100.

The rotary electroplating apparatus further comprises a belt press mechanism 4, which comprises a belt 41 and a plurality of belt guide wheels 42, wherein the central axes of the plurality of belt guide wheels 42 are fixedly arranged on the base 1, and the belt 41 is wound around the belt guide wheels 42 and presses the material belt 100 against the circumferential surface of the rotating wheel 21. The belt 41 presses the material tape 100 against the circumferential surface of the rotation wheel 21 so that the material tape 100 can be closely attached to the rotation wheel 21 without slipping, thereby making the plating layer uniform, and the belt 41 can also block the liquid medicine from being sprayed out from the holes or grooves of the material tape 100, and make the liquid medicine flow back to the return groove 24 along the inner wall of the rotation wheel 21 and then flow back into the anode water pocket 22, so that the liquid medicine is not wasted.

The belt press mechanism may also be provided with a belt tensioner 43. Specifically, the belt tension pulley 43 is slidably adjustable in position in a direction perpendicular to the belt 41 to adjust the tightness of the belt 41, so that the belt 41 always keeps pressing the material belt 100, and the material belt 100 always tightly abuts against the rotation wheel 21.

Referring to fig. 1-3, the working process of the spin coating apparatus is as follows:

assembling the rotation wheel 21: looking up the electroplating drawing, finding out gold-plating measuring points according to the electroplating drawing, and assembling the rotating wheel 21 according to the gold-plating measuring points. In the assembling process, a proper water outlet ring 215 is selected, and the first spacing ring 212 and the second spacing ring 214 are adjusted at the same time, so that the material belt 100 is conveniently fixed on the fixing ring 213, the gold-plating measuring points are aligned with the flow limiting holes 21a of the water outlet ring 215, the flow limiting holes 21a of the water outlet ring 215 are not shielded, and finally, the water retaining ring 216 is covered, and the screws are locked.

Electroplating: the assembled rotating wheel 21 is sleeved on the shaft 25 of the anode water bag 22, a material belt guide wheel 31 which is suitable for the width of the material belt 100 is selected to be arranged on the base 1, and the rotating wheel is lifted into a gold groove of a machine table to be connected with a medicine water pipe. Tightly paste the material area 100 on the periphery of the orientation spraying mouth of a river 2a one side of swiveling wheel 21 through material area guide pulley 31 for material area 100 hugs closely restricted aperture 21a, presses belt 41 again against the material area 100 outside, adjusts belt take-up pulley 43, makes belt 41 remain the state of compressing tightly to material area 100 throughout, and the belt 41 elasticity is adjusted to not ooze liquid medicine can. Then the pump in the anode water bag 22 is started, the current of the material belt 100 and the liquid medicine is started, then the material belt 100 is driven to move at a constant speed, the material belt 100 drives the rotating wheel 21 to rotate, and simultaneously drives the belt 41 to move. The liquid medicine is sprayed from the spraying water gap 2a of the spraying water block 23, passes through the circulation hole 21b, and is electroplated on the material belt 100 through the quantitative liquid medicine precisely controlled by the flow limiting hole 21a, the liquid medicine which is not sprayed on the material belt 100 flows back to the return groove 24 through the inner wall of the rotating wheel 21, and the liquid medicine in the return groove 24 flows back to the anode water sac 22.

The chemical liquid sprayed by the electroplating chemical liquid spraying mechanism 2 is electroplated on the material belt 100 through the flow limiting hole 21a, the flow of the chemical liquid is accurately controlled, the coating is uniform and attractive, compared with electroplating in a small-flow and low-yield mode when brush plating is carried out by adopting a brush platform in the prior art, the rotary electroplating device carries out electroplating in a large-flow mode, the chemical liquid exchange speed is high, the electroplating efficiency is improved, the labor and time are saved, the problem of burning of products is solved, the yield is improved, and in the products of the rotary electroplating mode, customers can meet the requirement that the thickness of a gold measuring point film is enough by only needing a gold area of 1.5mm when needing the thickness of the gold measuring point film of 1mm, so that the gold cost is greatly saved; the material belt 100 is tightly attached to the flow limiting hole 21a, the distance from the liquid medicine sprayed out from the flow limiting hole 21a to the electroplating material belt 100 is short, the divergence is very small, and the gold area boundary line is very neat; the belt 41 presses the strip of material 100 against the circumferential surface of the rotating wheel 21 so that the strip of material 100 can abut against the rotating wheel 21 without slipping, and the belt 41 can block the liquid medicine from being sprayed out of the holes of the strip of material 100; the return tank 24 collects the liquid medicine which is not sprayed on the material belt 100 and flows into the anode water bag 22, so that the liquid medicine is saved, no waste is generated, and the electroplating cost is greatly reduced; the first spacing ring 212, the second spacing ring 214 and the water outlet ring 215 are matched for use, so that the electroplating requirements of different material belts 100 are met; the whole device has simple and reliable structure and strong applicability, and greatly promotes the development of electroplating technology.

It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (9)

1. The utility model provides a swiveling wheel for restriction fluid flow and adjustment fluid jet position, its characterized in that, include the rotary die body and overlap in proper order and locate first spacer ring, solid fixed ring, second spacer ring, play water ring, manger plate ring on it, radially be equipped with the opening on the rotary die body, be equipped with the restricted aperture on the play water ring, the opening with the restricted aperture aligns, first spacer ring adjustment gu fixed ring's position, second spacer ring adjustment play water ring's position, second spacer ring reaches the manger plate ring blocks the fluid of play water ring both sides.

2. The rotating wheel as claimed in claim 1, wherein sealing rings are provided on both sides of the flow restriction hole on the water discharge ring.

3. The rotating wheel as claimed in claim 1, wherein the fixing ring is provided with protruding particles.

4. The utility model provides an electroplate and spout liquid medicine mechanism for spray liquid medicine to the material area, its characterized in that includes: the rotating wheel according to any of claims 1-3, further comprising an anode water bag, a spraying water block and a return groove, wherein the spraying water block is provided with a spraying water port and fixedly arranged on the anode water bag, a shaft is fixedly arranged on the anode water bag, the rotating wheel is rotatably sleeved on the shaft and covers the spraying water port, the rotating wheel can rotate around the spraying water port, and the spraying water port is used for spraying liquid medicine on the material belt; the liquid medicine that does not spray on the material area flows back to through the inner wall of swiveling wheel the backwash tank, the liquid medicine in the backwash tank flows back to in the positive pole water pocket.

5. An electroplating spray mechanism according to claim 4, wherein the spray bar is fan-shaped.

6. A rotary electroplating device, comprising the electroplating liquid spraying mechanism according to claim 4 or 5, and further comprising a base and a material belt tensioning device, wherein the electroplating liquid spraying mechanism is fixedly arranged on the base, the material belt tensioning device is fixedly arranged on the base, and the material belt is attached to the circumferential surface of the rotating wheel through the material belt tensioning device.

7. The rotary electroplating apparatus as claimed in claim 6, wherein the material belt tensioning device comprises a plurality of material belt guide wheels, a central shaft of the plurality of material belt guide wheels is fixed on the base, and the material belt abuts against the circumferential surface of the rotating wheel through the plurality of material belt guide wheels.

8. The rotary plating apparatus as claimed in claim 6, further comprising a belt press mechanism including a belt and a plurality of belt guide rollers, a central axis of the plurality of belt guide rollers being fixed to the base, the belt being wound around the belt guide rollers and pressing the strip of material against the circumferential surface of the rotating wheel.

9. The rotary plating apparatus of claim 8, wherein the belt press mechanism comprises a belt tensioner.

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