CN117448766A - Coating equipment and coating method for PEI plastic parts - Google Patents

Abstract

The invention provides coating equipment and a coating method for PEI plastic parts, and belongs to the technical field of coating equipment; the magnetic control target comprises a shell, wherein the upper surface of the shell is in an opening shape, a fixed cylinder is fixedly connected to the middle part of the inner bottom wall of the shell, a magnetic control target head is arranged in the fixed cylinder, a plurality of partition plates are fixedly connected to the outer surface of the fixed cylinder, and one side of each partition plate is fixedly connected with the inner wall of the shell. According to the invention, the picking and placing components are arranged at the left coating cavity and the right coating cavity, when the coating time of the PEI plastic parts at the left side and the right side is up, the through holes are blocked, then the knob is turned to open the air holes, meanwhile, the limiting block moves and releases the limiting of the door plate, and then the door plate is opened to take out the PEI plastic parts from the picking and placing ports, so that the device is suitable for the PEI plastic part mixed coating of different coating time, and the working flow of the whole equipment is not influenced by the PEI plastic parts in the coating cavities at the left side and the right side, the coating quality of the product is improved, and the coating effect is better.

Description

Coating equipment and coating method for PEI plastic parts

Technical Field

The invention relates to the technical field of coating equipment, in particular to coating equipment and a coating method for PEI plastic parts.

Background

PEI is super engineering plastic manufactured by amorphous polyetherimide, has the advantages of high temperature resistance, chemical resistance, flame retardance, high strength and the like, can be widely applied to high temperature resistant terminals, IC bases, lighting equipment, FPCB (flexible printed circuit), liquid conveying equipment, aircraft interior parts, medical equipment, household appliances and the like, and generally needs to use coating equipment to coat a film on the surface of the PEI plastic in order to improve the appearance quality of the PEI plastic and protect the appearance of the PEI plastic,

the existing coating equipment enables the heating seat to heat the substrate and carry out coating in a sputtering or electron beam evaporation mode, after the whole coating process is finished, the vacuum state is released again, the workpiece after the coating is finished is taken out, the process is repeated after the next PEI plastic part is replaced, a plurality of similar PEI plastic parts are generally installed in a hanger and then are sent into the coating equipment to carry out coating, and the PEI plastic parts are not uniform in shape and cannot be suitable for PEI plastic part mixed coating in different coating time, so that in the actual coating process, the coating of some PEI plastic parts is thicker, the coating of some PEI plastic parts is thinner, the product quality is different, and the existing coating requirements cannot be met.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the invention aims to provide a coating device and a coating method for PEI plastic parts, which are used for solving the problems that the shapes of the existing PEI plastic parts are not uniform, the coating device cannot be suitable for PEI plastic parts mixed coating with different coating time, so that in the actual coating process, the coating of some PEI plastic parts is thicker, the coating of some PEI plastic parts is thinner, the quality of products is different, and the existing coating requirements cannot be met.

(2) Technical proposal

In order to solve the technical problems, the invention provides coating equipment for PEI plastic parts, which comprises a shell, wherein the upper surface of the shell is in an opening shape, a fixed cylinder is fixedly connected to the middle part of the inner bottom wall of the shell, a magnetic control target head is arranged in the fixed cylinder, a plurality of partition plates are fixedly connected to the outer surface of the fixed cylinder, one side of each partition plate is fixedly connected with the inner wall of the shell, a plurality of coating cavities are formed in the shell through the partition plates, through holes communicated with the coating cavities are formed in the fixed cylinder, sealing assemblies are arranged at the left through hole and the right through hole, an organic cover is arranged on the upper surface of the shell through an up-down moving assembly, a plurality of support columns are arranged on the inner bottom wall of the organic cover through a rotating assembly, a plurality of hanging rods are fixedly connected to the outer surface of the support columns, a controller and a vacuum pump are arranged on one side of the shell, the vacuum pump is communicated with the fixed cylinder through connecting pipes, and pick-and-place assemblies are arranged on the left side and the right side of the shell.

Further, the inner bottom wall of the fixed cylinder is fixedly connected with a placing cylinder, the outer surface of the placing cylinder is meshed, and the magnetic control target head is arranged in the placing cylinder.

Further, the sealing assembly comprises first electric push rods fixedly connected to the left side and the right side of the placing barrel, and sealing strips corresponding to the through holes are fixedly connected to the telescopic ends of the first electric push rods.

Further, the fixed cylinder and the partition plate are flush with the upper surface of the shell, and the lower surface of the cover is fixedly connected with a sealing gasket.

Further, reciprocate the bottom plate of subassembly including casing lower surface, the equal fixedly connected with stand in upper surface four corners of bottom plate, the top fixedly connected with roof of stand, the last surface mounting of roof has two second electric putter, the flexible end and the lid fixed connection of second electric putter.

Further, rotating assembly is including seting up at the inside cavity of cover and fixed connection in the gear motor of diapire in the cavity, gear motor's output fixedly connected with first gear, and the top of support column is located the inside of cavity and fixedly connected with second gear, and the support column passes through the bearing to be connected with the cover rotation, and the inner wall of cavity is connected with the ring gear through the bearing rotation, and first gear and second gear all are connected with the ring gear meshing, install the sealing washer between support column and the cover.

Further, a groove is formed in one end, far away from the support column, of the hanging rod, and a gap is reserved between the hanging rod and the inner wall of the coating cavity.

Further, get and put the subassembly and put the mouth including seting up the getting in casing left and right sides, get and put mouthful and left and right two coating film chambeies and be linked together, the door plant corresponding with getting to put mouthful is all installed to the left and right sides of casing, the door plant passes through hasp and casing fixed connection, installs the handle on the door plant.

Further, the hasp includes fixed box of fixed connection at the casing surface, and fixed box is linked together through gas pocket and coating film chamber, and fixed box's inside is provided with the shutoff piece corresponding with the gas pocket, and one side rotation of shutoff piece is connected with the lead screw, and the lead screw runs through fixed box and fixedly connected with knob, lead screw and fixed box threaded connection, and fixed box's inside sliding connection has the stopper, and the one end of stopper is located fixed box's outside, and the stopper passes through the bearing rotation to be connected at the surface of lead screw.

A coating method for PEI plastic parts comprises the following steps:

step one, when in use, PEI plastic parts with shorter coating time are placed on hanging rods on the left side and the right side, PEI plastic parts with longer coating time are placed on other hanging rods, then the second electric push rod is started to extend to move downwards with the motor cover, the motor cover is pressed against the upper surface of the shell through the sealing gasket, then the first electric push rod is started to shrink to drive the sealing strip to be far away from the through holes, and at the moment, the fixed cylinder is communicated with the plurality of coating cavities.

Step two, start the vacuum pump and take out suitable vacuum through the connecting pipe with fixed section of thick bamboo and coating film intracavity, then the magnetron target head work is carried out the coating film to PEI working of plastics, start gear motor drive first gear rotation simultaneously, first gear can drive second gear through the cooperation with the ring gear in rotatory in-process, support column and peg are rotatory, the peg can drive PEI working of plastics rotatory in-process to make each position of a plurality of PEI working of plastics even contact with the target of gasification, improve the effect of the actual coating film of device.

Step three, when the PEI plastic part coating time of left and right sides arrives, start first electric putter extension and drive the sealing strip and block up the through-hole, two coating film chambeies about this moment are kept apart with fixed section of thick bamboo, then rotate the knob and drive the lead screw rotatory, because lead screw and fixed box threaded connection, the lead screw can drive the shutoff piece at rotatory in-process this moment and remove and open the gas pocket, outside air gets into the coating film intracavity of left and right sides this moment, the lead screw can drive the stopper and remove the spacing to the door plant at rotatory in-process simultaneously, then open the door plant and take out PEI plastic part from getting the mouth of putting can, thereby can be applicable to the mixed coating film of PEI plastic part of different coating film time, and take out the PEI plastic part in the coating film chamber of left and right sides and not influence the workflow of whole equipment, improve the coating film quality of product, make the effect of coating film better.

(3) Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

in the scheme, the fixed cylinder and the coating cavity are pumped to a proper vacuum degree through the vacuum pump and the connecting pipe, then the magnetron target head is used for coating the PEI plastic part, the speed reducing motor is started to drive the first gear to rotate, the first gear can drive the second gear, the support column and the hanging rod to rotate through being matched with the gear ring in the rotating process, the hanging rod can drive the PEI plastic part to rotate in the rotating process, so that each position of the PEI plastic parts is even to contact with the gasified target material, and the actual coating effect of the device is improved.

Through setting up in two coating film chambeies of controlling and getting and put the subassembly, when the PEI plastic part coating film time of left and right sides is up the through-hole, two coating film chambeies of controlling and fixed section of thick bamboo keep apart this moment, then rotate the knob and open the gas pocket, outside air gets into the coating film intracavity of left and right sides this moment, the stopper removes and releases the spacing to the door plant simultaneously, then open the door plant and take out PEI plastic part from getting the mouth of putting can, thereby can be applicable to the PEI plastic part mixed coating film of different coating film time, and take out the PEI plastic part in the coating film chamber of left and right sides and do not influence the workflow of whole equipment, improve the coating film quality of product, make the effect of coating film better. .

Drawings

FIG. 1 is a schematic perspective view of a coating apparatus for PEI plastic parts;

FIG. 2 is a schematic elevational view of a coating apparatus for PEI plastic parts;

FIG. 3 is a schematic cross-sectional elevation view of a coating apparatus for PEI plastic parts;

FIG. 4 is an enlarged schematic view of the coating apparatus for PEI plastic parts shown in FIG. 3 at A;

FIG. 5 is an enlarged schematic view of the coating apparatus for PEI plastic parts shown in FIG. 3 at B;

FIG. 6 is a schematic top sectional view of a housing of a coating apparatus for PEI plastic parts;

FIG. 7 is an enlarged schematic view of the coating apparatus for PEI plastic parts shown in FIG. 6 at C;

fig. 8 is a schematic structural view of a cover of a coating apparatus for PEI plastic parts.

The marks in the drawings are: 1. a housing; 2. a fixed cylinder; 3. a magnetic control target head; 4. a partition plate; 5. a through hole; 6. a seal assembly; 7. an up-and-down moving assembly; 8. a cover; 9. a rotating assembly; 10. a support column; 11. a hanging rod; 12. a controller; 13. a vacuum pump; 14. a connecting pipe; 15. a pick-and-place assembly; 16. a film coating cavity; 201. placing a cylinder; 601. a first electric push rod; 602. a sealing strip; 801. a sealing gasket; 701. a bottom plate; 702. a column; 703. a top plate; 704. a second electric push rod; 901. a cavity; 902. a speed reducing motor; 903. a first gear; 904. a second gear; 905. a gear ring; 1101. a groove; 1501. a taking and placing port; 1502. a door panel; 1503. locking; 1504. a handle; 1505. a fixed box; 1506. air holes; 1507. a block; 1508. a screw rod; 1509. a knob; 1510. and a limiting block.

Detailed Description

The invention provides a coating device and a coating method for PEI plastic parts, which are described in detail below with reference to the accompanying drawings and specific embodiments. While the invention has been described herein in terms of the preferred and preferred embodiments, the following embodiments are intended to be more illustrative, and may be implemented in many alternative ways as will occur to those of skill in the art; and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the invention specifically.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.

It will be understood that the meanings of "on … …", "over … …" and "over … …" in this disclosure should be interpreted in the broadest sense so that "on … …" means not only "directly on" but also includes meaning "directly on" something with intervening features or layers therebetween, and "over … …" or "over … …" means not only "on" or "over" something, but also may include its meaning "on" or "over" something without intervening features or layers therebetween.

Furthermore, spatially relative terms such as "under …," "under …," "lower," "above …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein may similarly be interpreted accordingly.

As shown in fig. 1-8, an embodiment of the present invention provides a plating apparatus for PEI plastic parts, including a casing 1, the upper surface of the casing 1 is in an opening shape, a fixed cylinder 2 is fixedly connected to the middle part of an inner bottom wall of the casing 1, a magnetic control target 3 is disposed inside the fixed cylinder 2, a plurality of partition plates 4 are fixedly connected to an outer surface of the fixed cylinder 2, one side of the partition plates 4 is fixedly connected to an inner wall of the casing 1, a plurality of plating cavities 16 are formed on the casing 1 through the partition plates 4, through holes 5 communicated with the plating cavities 16 are formed on the fixed cylinder 2, sealing components 6 are disposed at the left and right through holes 5, an organic cover 8 is disposed on the upper surface of the casing 1 through an up-down moving component 7, a plurality of support columns 10 are disposed on an inner bottom wall of the organic cover 8 through a rotating component 9, a plurality of hanging rods 11 are fixedly connected to an outer surface of the support columns 10, a controller 12 and a vacuum pump 13 are mounted on one side of the casing 1, the vacuum pump 13 is communicated with the fixed cylinder 2 through a connecting pipe 14, and pick-and-up components 15 are disposed on left and right sides of the casing 1.

As shown in fig. 1, 3 and 4, in the present embodiment, a placement barrel 201 is fixedly connected to the inner bottom wall of the fixed barrel 2, the outer surface of the placement barrel 201 is mesh-shaped, and the magnetron target head 3 is mounted inside the placement barrel 201.

The magnetron target head 3 is arranged to pass through the PEI plastic piece to be coated from the meshed placing barrel 201 during operation.

As shown in fig. 3 and 4, in the present embodiment, the sealing assembly 6 includes a first electric push rod 601 fixedly connected to both left and right sides of the placement barrel 201, and a sealing strip 602 corresponding to the through hole 5 is fixedly connected to a telescopic end of the first electric push rod 601.

The first electric push rod 601 is arranged to work to drive the sealing strip 602 to be far away from or close to the through hole 5, so that the fixed cylinder 2 and the coating cavities 16 can be closed.

As shown in fig. 3 and 5, in the present embodiment, the fixing cylinder 2 and the partition plate 4 are flush with the upper surface of the casing 1, and the lower surface of the cover 8 is fixedly connected with a gasket 801.

After the cover 8 is pressed with the upper surface of the casing 1 through the sealing gasket 801, the sealing performance is improved, and the air leakage phenomenon is avoided.

As shown in fig. 1 and 2, in this embodiment, the up-down moving assembly 7 includes a bottom plate 701 on the lower surface of the casing 1, four corners of the upper surface of the bottom plate 701 are fixedly connected with columns 702, top ends of the columns 702 are fixedly connected with a top plate 703, two second electric pushing rods 704 are mounted on the upper surface of the top plate 703, and telescopic ends of the second electric pushing rods 704 are fixedly connected with the casing 8.

The second electric push rod 704 is started to extend and move the motor cover 8 downwards, so that the motor cover 8 can be pressed against the upper surface of the machine shell 1, and the coating cavity 16 is in a closed state.

As shown in fig. 3 and 5, in this embodiment, the rotating assembly 9 includes a cavity 901 formed inside the cover 8 and a gear motor 902 fixedly connected to the bottom wall inside the cavity 901, the output end of the gear motor 902 is fixedly connected with a first gear 903, the top end of the support column 10 is located inside the cavity 901 and is fixedly connected with a second gear 904, the support column 10 is rotatably connected with the cover 8 through a bearing, the inner wall of the cavity 901 is rotatably connected with a gear ring 905 through a bearing, the first gear 903 and the second gear 904 are both meshed with the gear ring 905, and a sealing ring is installed between the support column 10 and the cover 8.

The gear motor 902 is started to drive the first gear 903 to rotate, the first gear 903 can drive the second gear 904, the supporting column 10 and the hanging rod 11 to rotate through being matched with the gear ring 905 in the rotating process, and the hanging rod 11 can drive the PEI plastic parts to rotate in the rotating process, so that each position of the PEI plastic parts is uniformly contacted with the gasified target materials, and the actual film coating effect of the device is improved.

As shown in fig. 5 and 8, in this embodiment, a groove 1101 is formed at an end of the hanging rod 11 away from the support column 10, and a gap is left between the hanging rod 11 and the inner wall of the coating cavity 16.

The PEI plastic parts are placed on the hanging rods 11 on the left side and the right side, and cannot contact with the inner wall of the coating cavity 16 in the rotating process.

As shown in fig. 6 and 7, in this embodiment, the pick-and-place assembly 15 includes a pick-and-place port 1501 formed on the left and right sides of the casing 1, the pick-and-place port 1501 is communicated with the left and right coating cavities 16, door plates 1502 corresponding to the pick-and-place port 1501 are mounted on the left and right sides of the casing 1, the door plates 1502 are fixedly connected with the casing 1 through a lock catch 1503, a handle 1504 is mounted on the door plates 1502, the lock catch 1503 includes a fixing box 1505 fixedly connected to the outer surface of the casing 1, the fixing box 1505 is communicated with the coating cavities 16 through an air hole 1506, a sealing block 1507 corresponding to the air hole 1506 is disposed inside the fixing box 1505, a screw rod 1508 is rotatably connected to one side of the sealing block 1507, the screw rod 1508 penetrates the fixing box 1509 and is fixedly connected to the knob 1509, the screw rod 1508 is in threaded connection with the fixing box 1505, one end of the limiting block 1510 is located outside the fixing box 1505, and the limiting block 1510 is rotatably connected to the outer surface of the screw rod 1508 through a bearing.

The rotary knob 1509 is arranged to drive the screw rod 1508 to rotate, and because the screw rod 1508 is in threaded connection with the fixed box 1505, the screw rod 1508 can drive the blocking block 1507 to move and open the air hole 1506 in the rotating process, at the moment, outside air enters the coating cavity 16 on the left side and the right side, meanwhile, the screw rod 1508 can drive the limiting block 1510 to move and release the limiting of the door plate 1502 in the rotating process, and then the door plate 1502 is opened to take out PEI plastic parts from the taking-out and putting-in port 1501, so that the device is suitable for PEI plastic part mixed coating films in different coating times.

A coating method for PEI plastic parts comprises the following steps:

step one, when in use, PEI plastic parts with shorter coating time are placed on hanging rods 11 on the left side and the right side, PEI plastic parts with longer coating time are placed on other hanging rods 11, then the second electric push rod 704 is started to extend and move the motor cover 8 downwards, the motor cover 8 is pressed against the upper surface of the machine shell 1 through the sealing gasket 801, then the first electric push rod 601 is started to shrink and drive the sealing strip 602 to be far away from the through hole 5, and at the moment, the fixed cylinder 2 is communicated with the coating cavities 16.

Step two, starting a vacuum pump 13 to pump the interior of the fixed cylinder 2 and the coating cavity 16 to a proper vacuum degree through a connecting pipe 14, then operating the magnetic control target head 3 to coat the PEI plastic part, simultaneously starting a gear motor 902 to drive a first gear 903 to rotate, wherein the first gear 903 can drive a second gear 904, a support column 10 and a hanging rod 11 to rotate through being matched with a gear ring 905 in the rotating process, and the hanging rod 11 can drive the PEI plastic part to rotate in the rotating process.

Step three, when the coating time of the PEI plastic parts on the left side and the right side is up, the first electric push rod 601 is started to extend to drive the sealing strips 602 to block the through holes 5, at this time, the left coating cavity 16 and the right coating cavity 16 are isolated from the fixed cylinder 2, then the knob 1509 is rotated to drive the screw rod 1508 to rotate, because the screw rod 1508 is in threaded connection with the fixed box 1505, at this time, the screw rod 1508 can drive the blocking block 1507 to move and open the air hole 1506 in the rotating process, at this time, outside air enters the coating cavities 16 on the left side and the right side, at the same time, the screw rod 1508 can drive the limiting block 1510 to move and release the limiting of the door plate 1502 in the rotating process, and then the door plate 1502 is opened to take the PEI plastic parts out of the taking-out and placing port 1501.

The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present invention.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in implementing the methods of the embodiments described above may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as: ROM/RAM, magnetic disks, optical disks, etc.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. The utility model provides a coating equipment for PEI working of plastics, its characterized in that includes casing (1), the upper surface of casing (1) is the opening form, fixed cylinder (2) are fixedly connected with in the middle part of the interior bottom of casing (1), the inside of fixed cylinder (2) is provided with magnetic control target head (3), the surface fixedly connected with of fixed cylinder (2) a plurality of baffles (4), one side of baffle (4) and the inner wall fixed connection of casing (1), casing (1) is formed with a plurality of coating film chambeies (16) through baffle (4), set up on fixed cylinder (2) through-hole (5) that are linked together with coating film chambeies (16), two left and right sides through-hole (5) department is provided with sealing component (6);

the upper surface of casing (1) is provided with organic lid (8) through reciprocate subassembly (7), the interior bottom wall of lid (8) is provided with a plurality of support columns (10) through rotating assembly (9), the surface fixedly connected with of support column (10) a plurality of peg (11), controller (12) and vacuum pump (13) are installed to one side of casing (1), vacuum pump (13) are linked together with fixed cylinder (2) through connecting pipe (14), the left and right sides of casing (1) all is provided with gets and puts subassembly (15).

2. The coating equipment for PEI plastic parts according to claim 1, wherein the inner bottom wall of the fixed cylinder (2) is fixedly connected with a placing cylinder (201), the outer surface of the placing cylinder (201) is mesh-shaped, and the magnetic control target head (3) is arranged inside the placing cylinder (201).

3. The coating equipment for PEI plastic parts according to claim 1, wherein the sealing assembly (6) comprises first electric pushing rods (601) fixedly connected to the left side and the right side of the placing cylinder (201), and sealing strips (602) corresponding to the through holes (5) are fixedly connected to telescopic ends of the first electric pushing rods (601).

4. The coating equipment for PEI plastic parts according to claim 1, wherein the fixing cylinder (2) and the partition plate (4) are flush with the upper surface of the casing (1), and the lower surface of the casing cover (8) is fixedly connected with a sealing gasket (801).

5. The coating equipment for PEI plastic parts according to claim 1, wherein the up-down moving assembly (7) comprises a bottom plate (701) on the lower surface of the casing (1), upright posts (702) are fixedly connected to four corners of the upper surface of the bottom plate (701), top plates (703) are fixedly connected to top ends of the upright posts (702), two second electric pushing rods (704) are mounted on the upper surface of the top plates (703), and telescopic ends of the second electric pushing rods (704) are fixedly connected with a casing (8).

6. The coating equipment for PEI plastic parts according to claim 1, wherein the rotating assembly (9) comprises a cavity (901) formed in the machine cover (8) and a gear motor (902) fixedly connected with the inner bottom wall of the cavity (901), the output end of the gear motor (902) is fixedly connected with a first gear (903), the top end of the support column (10) is located in the cavity (901) and is fixedly connected with a second gear (904), the support column (10) is rotationally connected with the machine cover (8) through a bearing, the inner wall of the cavity (901) is rotationally connected with a gear ring (905) through a bearing, the first gear (903) and the second gear (904) are both in meshed connection with the gear ring (905), and a sealing ring is installed between the support column (10) and the machine cover (8).

7. The coating equipment for PEI plastic parts according to claim 1, wherein a groove (1101) is formed in one end of the hanging rod (11) far away from the supporting column (10), and a gap is reserved between the hanging rod (11) and the inner wall of the coating cavity (16).

8. The coating equipment for PEI plastic parts according to claim 1, wherein the pick-and-place assembly (15) comprises pick-and-place openings (1501) formed in the left side and the right side of the casing (1), the pick-and-place openings (1501) are communicated with the left coating cavity (16) and the right coating cavity (16), door plates (1502) corresponding to the pick-and-place openings (1501) are arranged on the left side and the right side of the casing (1), the door plates (1502) are fixedly connected with the casing (1) through lock catches (1503), and handles (1504) are arranged on the door plates (1502).

9. The coating equipment for PEI plastic parts according to claim 8, wherein the lock catch (1503) comprises a fixed box (1505) fixedly connected to the outer surface of the casing (1), the fixed box (1505) is communicated with the coating cavity (16) through an air hole (1506), a blocking block (1507) corresponding to the air hole (1506) is arranged in the fixed box (1505), a screw rod (1508) is rotatably connected to one side of the blocking block (1507), the screw rod (1508) penetrates through the fixed box (1505) and is fixedly connected with a knob (1509), the screw rod (1508) is in threaded connection with the fixed box (1505), a limiting block (1510) is slidably connected to the inside of the fixed box (1505), one end of the limiting block (1510) is located outside the fixed box (1505), and the limiting block (1510) is rotatably connected to the outer surface of the screw rod (1508) through a bearing.

10. A coating method for PEI plastic parts, characterized by comprising the coating device for PEI plastic parts according to any of the claims 1-9, further comprising the steps of:

step one, put PEI working of plastics that the coating film time is shorter on peg (11) of left and right sides during the use, PEI working of plastics that the coating film time is longer is put on other peg (11), then start second electric putter (704) extension tape motor lid (8) and move downwards, make upper surface compress tightly of lid (8) and casing (1) through sealed pad (801), then start first electric putter (601) shrink drive sealing strip (602) and keep away from through-hole (5), fixed section of thick bamboo (2) and a plurality of coating film chamber (16) intercommunication this moment.

Step two, start vacuum pump (13) and take out the suitable vacuum through connecting pipe (14) in fixed section of thick bamboo (2) and coating film chamber (16), then magnetron target head (3) work is carried out the coating film to PEI working of plastics, start gear motor (902) simultaneously and drive first gear (903) rotation, first gear 903 can drive second gear (904) through the cooperation with ring gear (905) in rotatory in-process, support column (10) and peg (11) rotation, peg (11) can drive PEI working of plastics in rotatory in-process, thereby make each position of a plurality of PEI working of plastics even with gasified target contact, improve the effect of device actual coating film.

Step three, when the PEI plastic part coating time of left and right sides arrives, start first electric putter (601) extension and drive sealing strip (602) and block up through-hole (5), two coating film chambeies about this moment (16) are kept apart with fixed section of thick bamboo (2), then rotate knob (1509) and drive lead screw (1508) rotatory, because lead screw (1508) and fixed case (1505) threaded connection, lead screw (1508) can drive shutoff piece (1507) and open gas pocket (1506) this moment in rotatory in-process, outside air gets into in coating film chambeies (16) of left and right sides this moment, simultaneously lead screw (1508) can drive stopper (1510) and remove the spacing to door plant (1502), then open door plant (1502) with PEI plastic part take out from getting and put mouth (1501) can, thereby can be applicable to the PEI plastic part mixed coating film of different coating times, and take out PEI plastic part in the coating film chambeies (16) of left and right sides and does not influence the workflow of whole equipment, the effect of coating film is better of product, make.