CN114473660A

CN114473660A - Plastic products internal surface processing equipment that polishes

Info

Publication number: CN114473660A
Application number: CN202210113093.3A
Authority: CN
Inventors: 赵海峰
Original assignee: Nantong Haifeng Household Products Co ltd
Current assignee: Nantong Haifeng Household Products Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-05-13
Anticipated expiration: 2042-01-29
Also published as: CN114473660B

Abstract

The invention discloses a plastic product inner surface polishing processing device which comprises a processing table, wherein two guide rails with convex cross sections are fixedly connected to the right side of the processing table, a plurality of moving mechanisms are arranged on the guide rails, each moving mechanism comprises a moving plate positioned above the two guide rails, the lower end of each moving plate is fixedly connected with two pairs of limiting sliding plates, the two pairs of limiting sliding plates are respectively connected with the two guide rails in a sliding manner, the processing table and the upper end of the moving plate positioned on the rightmost side are respectively and fixedly connected with a first vertical plate and a second vertical plate, corresponding positions of opposite sides of the first vertical plate and the second vertical plate are respectively and rotatably connected with a first rotating shaft and a second rotating shaft, and the opposite ends of the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a first rotating disc and a second rotating disc. Has the advantages that: the inner wall of the plastic pipe is polished by polishing the steel wires, so that the polishing efficiency is improved, and the inner surface of the plastic pipe with any length and any inner diameter can be conveniently polished.

Description

Plastic products internal surface processing equipment that polishes

Technical Field

The invention relates to the technical field of plastic product polishing, in particular to a plastic product inner surface polishing device.

Background

Plastic tubing, PVC pipe are the most common plastic products in the life, and the plastic tubing needs to carry out the work of polishing to its internal and external surface in the process to improve the quality and the use value of plastic tubing, in the work of polishing of plastics in the past, the work of polishing of plastic tubing internal surface is comparatively difficult always, and the less internal diameter of pipeline can't send into grinding device, thereby the effect of polishing of plastic tubing internal surface is relatively poor.

The patent number CN201811023761.3 discloses a plastic product inner surface polishing processing device, which comprises a sliding support, a driver, a sliding connector, an adjustable inner wall polisher and a fixer, wherein the adjustable inner wall polisher comprises a polishing base, six moving tracks, a plurality of moving chutes, a driving shaft fixing seat, a circular through hole, a fastening bolt, a communicating circular hole, a driving gear shaft, six sliding bases, six connecting rods, six polishing stones and a fixing gear sleeve, the six moving tracks are uniformly arranged at the right end of the polishing base, a plurality of moving chutes are arranged in each six moving track, and the communicating circular hole is arranged at the center of the right end of the polishing base; the plastic product pipe polishing machine has the beneficial effects that the polishing diameter can be adjusted according to the diameter of a polished plastic product pipe, and the polishing depth can be adjusted while polishing.

Although the diameter of polishing can be adjusted according to the size of the diameter of the plastic product pipeline of polishing to above-mentioned patent, can polish the degree of depth of adjusting simultaneously in the limit, nevertheless unable effectual plastic tubing internal surface to arbitrary length polishes, can't carry out the internal surface work of polishing of longer plastic tubing.

In order to solve the problems, a polishing device for the inner surface of the plastic product is provided.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a plastic product inner surface polishing processing device.

In order to achieve the purpose, the invention adopts the following technical scheme: a polishing processing device for the inner surface of a plastic product comprises a processing table, wherein two guide rails with convex cross sections are fixedly connected to the right side of the processing table, a plurality of moving mechanisms are arranged on the guide rails, each moving mechanism comprises a moving plate positioned above the two guide rails, the lower end of each moving plate is fixedly connected with two pairs of limiting sliding plates, the two pairs of limiting sliding plates are respectively in sliding connection with the two guide rails, the upper ends of the processing table and the moving plate positioned on the rightmost side of the processing table are respectively and fixedly connected with a first vertical plate and a second vertical plate, corresponding positions on opposite sides of the first vertical plate and the second vertical plate are respectively and rotatably connected with a first rotating shaft and a second rotating shaft, opposite ends of the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a first rotating disc and a second rotating disc, end plates are respectively and fixedly connected to the right ends of the two guide rails and the left side of the processing table, and one opposite sides of the two end plates are jointly and rotatably connected with a transmission rod, a first motor for driving the transmission rod to rotate is fixedly mounted on one of the end plates, belt wheels are sleeved on the transmission rod and at the corresponding positions of the first rotating shaft and the second rotating shaft, and the transmission rod is in belt transmission connection with the first rotating shaft and the second rotating shaft through the belt wheels;

four moving grooves which are distributed in a rectangular shape are arranged on one side of the first rotating disc opposite to one side of the second rotating disc, the first rotating disc and the second rotating disc are both provided with inner diameter adjusting devices, each inner diameter adjusting device comprises a moving block which is connected in each moving groove in a sliding manner, a threaded rod which penetrates through the corresponding moving block is connected in each moving groove in a rotating manner, the threaded rod is connected with the corresponding moving block through threads, driving cavities are formed in the center positions of the inner parts of the first rotating disc and the second rotating disc, four bevel gears which are sequentially meshed in the circumferential direction are arranged in the driving cavity, the axle center positions of the four bevel gears are respectively and fixedly connected with corresponding threaded rods, the first rotating disc and the second rotating disc are both fixedly provided with a second motor, and the output end of the second motor is coaxially and fixedly connected with one threaded rod in the corresponding inner diameter adjusting mechanism;

the first rotating shaft is fixedly sleeved with a mounting disc, one side of the mounting disc close to the first rotating disc is circumferentially and fixedly connected with four winding wheels, one side of each winding wheel is fixedly provided with a third motor for driving the winding wheel to rotate, each winding wheel is wound with a grinding steel wire, each moving block on the first rotating disc is transversely provided with a wire hole, the right side of the first rotating disc is provided with a wire drawing disc, the outer peripheral surface of the wire drawing disc is provided with four block grooves which are distributed in a rectangular shape and have openings at the left sides, each block groove is internally provided with a connecting block, the inner wall of each block groove is provided with a vertical groove, a vertical rod is inserted in the vertical groove, one end of each vertical rod is fixedly connected with the corresponding connecting block, the left side of the first rotating disc is provided with a sliding port at the corresponding position of each moving groove, one end of each grinding steel wire far away from the winding wheel penetrates through the corresponding sliding port and the wire hole and is fixedly connected with the corresponding connecting block, bolt holes are formed in one end, away from the vertical rod, of each connecting block, and connecting bolts are arranged at the left ends of the moving blocks located on the second rotating disc.

In the above polishing and processing equipment for the inner surface of the plastic product, two pulleys are rotatably connected in each pair of limiting sliding plates, and the pulleys are in rolling contact with the corresponding guide rails.

In the polishing processing equipment for the inner surface of the plastic product, pin holes are uniformly formed in one side, away from each other, of the two guide rails, and bolts are inserted into corresponding positions of the pin holes on the limiting sliding plate close to the side, away from each other, of the guide rails.

In foretell plastic products internal surface processing equipment of polishing, fixedly connected with draw runner on the transfer line is located the leftmost end the band pulley slides and cup joints on transfer line and draw runner, is located the leftmost end the band pulley both sides have all been seted up the ring channel, two equal sliding connection has the right-angle pole in the ring channel, two the one end that the ring channel was kept away from to the right-angle pole all is with the movable plate fixed connection that the top corresponds.

In the above polishing processing equipment for the inner surface of the plastic product, the moving blocks located on the first rotating disc are fixedly provided with cylinders at the ends located outside the moving grooves and close to the axis positions of the first rotating disc, the telescopic ends of the cylinders extend into the corresponding wire holes and are fixedly connected with wire fixing blocks, and the wire holes are far away from the inner wall of one side of the cylinder and are provided with wire fixing grooves at the corresponding positions of the wire fixing blocks.

In the above polishing and processing equipment for the inner surface of the plastic product, the circle centers of the left side and the right side of the wire drawing disc are respectively provided with a first magnetic block, the circle centers of the opposite sides of the first rotating disc and the second rotating disc are respectively provided with a second magnetic block attracted with the first magnetic block, and the right side of the wire drawing disc is fixedly connected with the wire drawing block.

In foretell a plastic products internal surface processing equipment of polishing, all be equipped with fixture on each movable plate between processing platform and the second riser, fixture includes two electric telescopic handle of fixed connection in the movable plate upper end, is located two on the same movable plate electric telescopic handle's the common fixedly connected with of flexible end places the board, place the board upper end and vertically seted up the shifting chute, sliding connection has the grip block that two front and back symmetries set up in the shifting chute, rotate jointly between the inner wall around the shifting chute and be connected with two-way threaded rod, two-way threaded rod runs through two grip blocks that correspond and threaded connection with it, each place the board front end all be equipped with the turning block that corresponds two-way threaded rod front end fixed connection.

Compared with the prior art, the plastic product inner surface polishing processing equipment has the advantages that:

1. when the plastic pipe is polished, the telescopic long rod is only needed to penetrate through the plastic pipe from the right end of the plastic pipe, the pull block is pulled by the pull rod, the wire pulling plate is pulled from the left side to the right side of the plastic pipe, the polishing steel wires penetrate through the plastic pipe, each moving block on the second rotating disc is connected with each connecting block through a connecting bolt, and then each wire fixing block is enabled to fix each corresponding polishing steel wire through each cylinder to keep the polishing steel wires in a tightened state, so that two second motors are controlled to work simultaneously according to the inner diameter of the plastic pipe to be polished, and under the action of the two inner diameter adjusting mechanisms, each polishing steel wire can move away from each other until the polishing steel wire is attached to the inner wall of the plastic pipe to be polished, so that polishing work of different inner diameters of the plastic pipe is facilitated; accomplish the regulation work after, only need start first motor, first motor drive transfer line rotates, the transfer line drives first pivot of drive and second pivot under the driven effect of area and rotates with the rotational speed is synchronous, then each steel wire of polishing can laminate the plastic pipe inner wall and rotate at a high speed, utilize the high-speed friction of steel wire and plastic tubing inner wall of polishing, in order to reach the effective polishing to its inner surface, use the steel wire of polishing to carry out polishing of plastic pipe inner wall, and is simple and convenient not only, and the efficiency of polishing is compared in the wheel of polishing higher, as the consumer, the steel wire of polishing is compared in the wheel cost of polishing lower.

2. Through setting up guide rail, moving mechanism and fixture, can carry out the internal surface work of polishing of arbitrary length plastic tubing, and can carry out stable centre gripping to the plastic tubing of different diameters size and fix to make it remove to taking the position of polishing, improve the work flexibility of the equipment of polishing.

Drawings

FIG. 1 is a perspective view of a plastic article inner surface polishing apparatus according to the present invention;

FIG. 2 is a partial sectional view of the structure of the inner surface polishing device for plastic products according to the present invention;

FIG. 3 is a partial perspective view of the front side of the rightmost movable plate in the apparatus for polishing and processing the inner surface of a plastic product according to the present invention;

FIG. 4 is a front perspective view of a first rotary disk of the apparatus for polishing and processing the inner surface of a plastic product according to the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;

FIG. 6 is a perspective view of a clamping mechanism in the plastic product inner surface polishing device according to the present invention;

FIG. 7 is a perspective view of an extension plate in the plastic product inner surface polishing device according to the present invention;

fig. 8 is a schematic structural diagram of a front surface of a second rotating disc in the plastic product inner surface polishing processing device provided by the invention.

In the figure: 1 processing table, 2 guide rails, 3 limiting sliding plates, 4 moving plates, 5 pin holes, 6 bolts, 7 first vertical plates, 8 first rotating shafts, 9 first rotating discs, 10 second vertical plates, 11 second rotating shafts, 12 second rotating discs, 13 end plates, 14 transmission rods, 15 first motors, 16 sliding strips, 17 annular grooves, 18 right-angle rods, 19 moving grooves, 20 moving blocks, 21 threaded rods, 22 second motors, 23 mounting discs, 24 winding wheels, 25 third motors, 26 grinding steel wires, 27 line holes, 28 wire drawing discs, 29 grooves, 30 connecting blocks, 31 vertical rods, 32 air cylinders, 33 line fixing blocks, 34 line fixing grooves, 35 connecting bolts, 36 pulling blocks, 37 clamping mechanisms, 38 electric telescopic rods, 39 placing plates, 40 moving grooves, 41 clamping plates and 42 bidirectional threaded rods.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-8, a plastic product inner surface polishing processing device comprises a processing table 1, two guide rails 2 with convex cross sections are fixedly connected to the right side of the processing table 1, a plurality of moving mechanisms are arranged on the guide rails 2, each moving mechanism comprises a moving plate 4 positioned above the two guide rails 2, the lower end of each moving plate 4 is fixedly connected with two pairs of limiting sliding plates 3, the two pairs of limiting sliding plates 3 are respectively connected with the two guide rails 2 in a sliding manner, two pulleys are rotatably connected in each pair of limiting sliding plates 3 and are in rolling contact with the corresponding guide rails 2, so that the moving plates 4 can move more stably above the guide rails 2, pin holes 5 are uniformly formed in the sides, far away from the two guide rails 2, pins 6 are inserted in the corresponding positions of the pin holes on the limiting sliding plates 3 near the sides, far away from the guide rails 2, and the pins 6 are inserted into the corresponding pin holes 5 to perform positioning work of the moving mechanisms, thereby facilitating the moving of the moving plate 4 to any position and the positioning work.

And each moving plate 4 between the processing table 1 and the second vertical plate 10 is provided with a clamping mechanism 37, and the clamping mechanism 37 is used for clamping and fixing the plastic pipe to be polished. The clamping mechanism 37 comprises two electric telescopic rods 38 fixedly connected to the upper end of the movable plate 4, the telescopic ends of the two electric telescopic rods 38 positioned on the same movable plate 4 are fixedly connected with a placing plate 39 together, the upper end of the placing plate 39 is longitudinally provided with a moving groove 40, two clamping plates 41 symmetrically arranged front and back are connected in the moving groove 30 in a sliding manner, a bidirectional threaded rod 42 is connected between the front inner wall and the back inner wall of the moving groove 30 in a rotating manner together, the bidirectional threaded rod 32 penetrates through the two corresponding clamping plates 41 and is in threaded connection with the two corresponding clamping plates 41, a rotating block fixedly connected with the front end of the corresponding bidirectional threaded rod 42 is arranged at the front end of each placing plate 39, the position of each clamping mechanism 37 is adjusted through the moving mechanism according to the length of the plastic pipe to be ground so as to be uniformly distributed below the plastic pipe, each bidirectional threaded rod 32 is rotated through the rotating block, and the two clamping plates 41 opposite front and back are relatively moved, the centre gripping is located the plastic tubing on placing board 39, then each electric telescopic handle 38 extends simultaneously, drives fixture 31 and shifts up, makes the plastic tubing of taking the polishing move to the position of polishing (the position of polishing is the plastic tubing and first rolling disc 9 and second rolling disc 12 concentric settings promptly).

The upper ends of a processing table 1 and a moving plate 4 positioned on the rightmost side are respectively and fixedly connected with a first vertical plate 7 and a second vertical plate 10, the corresponding positions of the opposite sides of the first vertical plate 7 and the second vertical plate 10 are respectively and rotatably connected with a first rotating shaft 8 and a second rotating shaft 11, the opposite ends of the first rotating shaft 8 and the second rotating shaft 11 are respectively and fixedly connected with a first rotating disc 9 and a second rotating disc 12, the right ends of two guide rails 2 and the left side of the processing table 1 are respectively and fixedly connected with end plates 13, the opposite sides of the two end plates 13 are jointly and rotatably connected with a transmission rod 14, a first motor 15 for driving the transmission rod 14 to rotate is fixedly arranged on one end plate 13, belt pulleys are respectively sleeved on the transmission rod 14 and at the corresponding positions of the first rotating shaft 8 and the second rotating shaft 11, the transmission rod 14 is respectively in belt transmission connection with the first rotating shaft 8 and the second rotating shaft 11 through the belt pulleys, and the first motor 15 drives the transmission rod 14 to rotate, and can drive the first rotating disk 9 and the second rotating disk 12 to rotate synchronously with the rotating speed under the action of belt transmission. Fixedly connected with draw runner 16 on the transfer line 14, the effect of draw runner 16 is used for transmitting torque, the band pulley that is located the leftmost end slides and cup joints on transfer line 14 and draw runner 16, this band pulley can rotate along with transfer line 14 when following the transfer line 14 is gliding, ring channel 17 has all been seted up to the band pulley both sides that are located the leftmost end, equal sliding connection has right angle pole 18 in two ring channels 17, the one end that ring channel 17 was kept away from to two right angle poles 18 all with the movable plate 4 fixed connection that the top corresponds, the setting of ring channel 17 and right angle pole 18 can make this band pulley remove along with the removal of rightmost end movable plate 4, and do not influence its transmission effect.

Four moving grooves 19 which are distributed in a rectangular shape are respectively arranged on one opposite side of the first rotating disc 9 and one opposite side of the second rotating disc 12, inner diameter adjusting devices are respectively arranged on the first rotating disc 9 and the second rotating disc 12 and comprise moving blocks 20 which are connected in each moving groove 19 in a sliding manner, threaded rods 21 which penetrate through the corresponding moving blocks 20 are respectively and rotatably connected in each moving groove 19, the threaded rods 21 are in threaded connection with the corresponding moving blocks 20, driving cavities are respectively arranged at the central positions in the first rotating disc 9 and the second rotating disc 12, four bevel gears which are sequentially meshed in the circumferential direction are arranged in the driving cavities, the axial positions of the four bevel gears are respectively and fixedly connected with the corresponding threaded rods 21, second motors 22 are respectively and fixedly arranged on the first rotating disc 9 and the second rotating disc 12, and the output ends of the second motors 22 are coaxially and fixedly connected with one threaded rod 21 in the corresponding inner diameter adjusting mechanism, when the second motor 22 drives one threaded rod 21 to rotate, under the transmission action of four bevel gears meshed in sequence in the circumferential direction, the four threaded rods 21 rotate at the same rotating speed, so that the corresponding four moving blocks 20 can be driven to move away from or close to each other, and the polishing inner diameters of the four polishing steel wires 26 can be adjusted.

A mounting disc 23 is fixedly sleeved on the first rotating shaft 8, four winding wheels 24 are fixedly connected to one side of the mounting disc 23 close to the first rotating disc 9 in the circumferential direction, a third motor 25 for driving the winding wheels 24 to rotate is fixedly installed on one side of each winding wheel 24, polishing steel wires 26 are wound on each winding wheel 24, the third motor 25 plays a role in automatically winding and releasing the polishing steel wires 26, wire holes 27 are transversely formed in each moving block 20 on the first rotating disc 9, a wire drawing disc 28 is arranged on the right side of the first rotating disc 9, four block grooves 29 which are distributed in a rectangular shape and are provided with openings on the left sides are formed in the outer peripheral surface of the wire drawing disc 28, a connecting block 30 is arranged in each block groove 29, vertical grooves are formed in the inner walls of the block grooves 29, vertical rods 31 are inserted in the vertical grooves, one ends of the vertical rods 31 are fixedly connected with the corresponding connecting blocks 30, the connecting blocks 30 can move out of the block grooves 29 under the limiting action of the vertical rods 31, first rotating disk 9 left side and all seted up smooth mouthful in the corresponding position of each shifting chute 19, the one end that the steel wire 26 of each polishing was kept away from kinking wheel 24 runs through corresponding smooth mouthful and line hole and with corresponding line piece 30 fixed connection, the bolt hole has all been seted up to the one end that montant 31 was kept away from to each line piece 30, each movable block 20 left end that is located on second rotating disk 12 all is equipped with connecting bolt 35 for fix movable block 20 with corresponding line piece 30. Each grinding steel wire 26 can be pulled to the right through the wire pulling disc 28 to be elongated (in the process, the third motor 25 is matched with the driving winding wheel 24 to release the grinding steel wire 26).

Each moving block 20 located on first rotary disk 9 is located the outer one end of moving groove 19 and is close to the equal fixed mounting in axle center position of first rotary disk 9 has cylinder 32, the flexible end of cylinder 32 extends to correspond in the line hole 27 and fixedly connected with solidus piece 33, on one side inner wall that line hole 27 kept away from cylinder 32 and seted up solidus groove 34 in the corresponding position of solidus piece 33, solidus piece 33 removes through cylinder 32 drive, can push into in the fixed wire casing 34 with steel wire 26 of polishing, thereby fix the length of steel wire 26 of polishing, make it keep the state of tightening.

Circle center positions of the left side and the right side of the wire drawing disc 28 are provided with first magnetic blocks, circle center positions of the opposite sides of the first rotating disc 9 and the second rotating disc 12 are provided with second magnetic blocks attracted with the first magnetic blocks, the first magnetic blocks and the second magnetic blocks are arranged to facilitate fixing of the position of the wire drawing disc 28, and the right side of the wire drawing disc 28 is fixedly connected with a drawing block 36.

After the plastic pipe with the polishing is moved to the polishing position through the clamping mechanism, the plastic pipe is penetrated from the right end of the plastic pipe only by using a telescopic long rod, the plastic pipe is pulled by a pull block 36, a wire pulling plate 28 is pulled from the left side to the right side of the plastic pipe, polishing steel wires 26 penetrate through the plastic pipe, each moving block 20 on a second rotating disc 12 is connected with each connecting block 30 through a connecting bolt 35, then each air cylinder 32 works, each wire fixing block 33 fixes each corresponding polishing steel wire 26 to keep the polishing steel wires in a tight state, therefore, only two second motors 22 need to be controlled to work simultaneously according to the inner diameter of the plastic pipe to be polished, each polishing steel wire can move away under the action of the two inner diameter adjusting mechanisms until the inner wall of the plastic pipe to be polished is attached, after the adjustment work is finished, only the first motor 15 needs to be started, the first motor 15 drives the transmission rod 14 to rotate, the transmission rod 14 drives the first rotating shaft 8 and the second rotating shaft 11 to rotate synchronously with the rotating speed under the action of belt transmission, and then each grinding steel wire 26 can rotate at a high speed along the inner wall of the plastic pipe so as to effectively grind the inner surface of the plastic pipe.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a processing equipment that polishes of plastic products internal surface, includes processing platform (1), its characterized in that, two cross-sections of processing platform (1) right side fixed connection become guide rail (2) of type shape, be equipped with a plurality of moving mechanism on guide rail (2), moving mechanism is including movable plate (4) that are located two guide rail (2) tops, each the equal fixed connection of movable plate (4) lower extreme is two pairs of spacing slide (3), two pairs spacing slide (3) respectively with two guide rail (2) sliding connection, processing platform (1) and movable plate (4) upper end that is located the most right side do not fixedly connected with first riser (7) and second riser (10), first riser (7) and second riser (10) relative one side corresponding position rotate respectively and are connected with first pivot (8) and second pivot (11), first pivot (8) and second pivot (11) relative one end respectively fixedly connected with first rotary disk (9) and movable disk (11), first pivot (8) and second pivot (11) relative one end The right ends of the two guide rails (2) and the left side of the machining table (1) are fixedly connected with end plates (13), one opposite sides of the two end plates (13) are connected with transmission rods (14) in a rotating mode, a first motor (15) for driving the transmission rods (14) to rotate is fixedly mounted on one end plate (13), belt pulleys are sleeved on the transmission rods (14) and at the corresponding positions of the first rotating shaft (8) and the second rotating shaft (11), and the transmission rods (14) are in belt transmission connection with the first rotating shaft (8) and the second rotating shaft (11) through the belt pulleys;

four moving grooves (19) which are distributed in a rectangular shape are formed in one opposite side of the first rotating disc (9) and one opposite side of the second rotating disc (12), inner diameter adjusting devices are arranged on the first rotating disc (9) and the second rotating disc (12) and comprise moving blocks (20) which are connected in each moving groove (19) in a sliding mode, threaded rods (21) which penetrate through the corresponding moving blocks (20) are connected in each moving groove (19) in a rotating mode, the threaded rods (21) are in threaded connection with the corresponding moving blocks (20), driving cavities are formed in the center positions inside the first rotating disc (9) and the second rotating disc (12), four bevel gears which are sequentially meshed in the circumferential direction are arranged in the driving cavities, the axis positions of the four bevel gears are fixedly connected with the corresponding threaded rods (21) respectively, and second motors (22) are fixedly installed on the first rotating disc (9) and the second rotating disc (12), the output end of the second motor (22) is coaxially and fixedly connected with a threaded rod (21) in the corresponding inner diameter adjusting mechanism;

the cable winder is characterized in that a mounting disc (23) is fixedly sleeved on the first rotating shaft (8), four winding wheels (24) are fixedly connected to one side of the mounting disc (23) close to the first rotating disc (9) in the circumferential direction, a third motor (25) for driving the winding wheels (24) to rotate is fixedly mounted on one side of each winding wheel (24), polishing steel wires (26) are wound on each winding wheel (24), wire holes (27) are transversely formed in each moving block (20) on the first rotating disc (9), a cable drawing disc (28) is arranged on the right side of the first rotating disc (9), four rectangular block grooves (29) with openings on the left sides are formed in the outer peripheral surface of the cable drawing disc (28), wire connecting blocks (30) are arranged in each block groove (29), vertical grooves are formed in the inner walls of the block grooves (29), vertical rods (31) are inserted in the vertical grooves, one ends of the vertical rods (31) are fixedly connected with the corresponding wire connecting blocks (30), the left side of the first rotating disc (9) is provided with a sliding opening at the corresponding position of each moving groove (19), one end, far away from the winding wheel (24), of each grinding steel wire (26) penetrates through the corresponding sliding opening and wire hole and is fixedly connected with the corresponding wire connecting block (30), one end, far away from the vertical rod (31), of each wire connecting block (30) is provided with a bolt hole, and the left end of each moving block (20) on the second rotating disc (12) is provided with a connecting bolt (35).

2. The equipment for polishing and processing the inner surface of the plastic product as claimed in claim 1, characterized in that two pulleys are rotatably connected in each pair of the limiting sliding plates (3), and the pulleys are in rolling contact with the corresponding guide rails (2).

3. The plastic product inner surface grinding processing equipment according to claim 1, wherein pin holes (5) are uniformly formed in the far sides of the two guide rails (2), and bolts (6) are inserted in the corresponding positions of the pin holes on the limiting sliding plates (3) close to the far sides of the guide rails (2).

4. The plastic product inner surface polishing processing equipment as claimed in claim 1, wherein a slide bar (16) is fixedly connected to the transmission rod (14), the belt pulley at the leftmost end is slidably sleeved on the transmission rod (14) and the slide bar (16), annular grooves (17) are formed in both sides of the belt pulley at the leftmost end, right-angle rods (18) are slidably connected in the two annular grooves (17), and one ends, far away from the annular grooves (17), of the two right-angle rods (18) are fixedly connected with the corresponding moving plate (4) above.

5. The plastic product inner surface grinding processing device according to claim 1, wherein each moving block (20) on the first rotating disc (9) is fixedly provided with a cylinder (32) at one end outside the moving groove (19) and close to the axial center of the first rotating disc (9), the telescopic end of each cylinder (32) extends into a corresponding wire hole (27) and is fixedly connected with a wire fixing block (33), and the wire hole (27) is far away from the inner wall of one side of the cylinder (32) and is provided with a wire fixing groove (34) at the corresponding position of the wire fixing block (33).

6. The plastic product inner surface polishing processing equipment as claimed in claim 1, wherein first magnetic blocks are arranged at the circle center positions of the left side and the right side of the wire drawing disc (28), second magnetic blocks attracted with the first magnetic blocks are arranged at the circle center positions of the opposite sides of the first rotating disc (9) and the second rotating disc (12), and the wire drawing disc (28) is fixedly connected with the pulling blocks (36) at the right side.

7. The plastic product inner surface polishing processing equipment according to claim 1, wherein each moving plate (4) between the processing table (1) and the second vertical plate (10) is provided with a clamping mechanism (37), the clamping mechanism (37) comprises two electric telescopic rods (38) fixedly connected to the upper end of the moving plate (4), the telescopic ends of the two electric telescopic rods (38) on the same moving plate (4) are fixedly connected with a placing plate (39) together, the upper end of the placing plate (39) is longitudinally provided with a moving groove (40), the moving groove (30) is internally and slidably connected with two clamping plates (41) symmetrically arranged front and back, the front and back inner walls of the moving groove (30) are rotatably connected with a bidirectional threaded rod (42) together, and the bidirectional threaded rod (32) penetrates through and is in threaded connection with the two corresponding clamping plates (41), the front end of each placing plate (39) is provided with a rotating block fixedly connected with the front end of the corresponding bidirectional threaded rod (42).