Plastic part surface polishing device

Abstract

The invention relates to a plastic part surface grinding device, aims to improve the grinding efficiency and quality of tubular products such as plastic pipelines, and relates to the technical field of automation equipment, the device comprises a supporting seat, a fixing frame, a positioning disc, an internal grinding assembly, an external grinding assembly, an adjusting assembly, a control assembly, a mounting assembly and a driving assembly. The positioning disc provides a smooth surface to promote rotation of the pipeline, and the internal and external grinding assemblies synchronously work to comprehensively grind the inner and outer walls of the pipeline. The adjusting assembly flexibly adjusts the height of the external polishing assembly to adapt to pipelines with different diameters. The control assembly is integrated with the mounting assembly, stabilizes the position of the pipeline and cooperates with the driving assembly to achieve self-rotation driving and polishing operation of the pipeline. The device is novel in design, can polish the inner wall and the outer wall of the pipeline at the same time, remarkably improves the polishing efficiency, reduces the labor intensity, enhances the working flexibility, improves the polishing quality, and is particularly suitable for polishing treatment of plastic pipelines of various specifications and lengths.

Description

Technical Field

[0001] The invention relates to the technical field of automation equipment, in particular to a plastic part surface polishing device. Background Art

[0002] With the rapid development of modern industry and daily life, plastic pipes, especially PVC pipes, have become an indispensable part of construction, agricultural irrigation, chemical industry and water supply and drainage systems due to their low cost, corrosion resistance and easy installation. However, during the production and processing of plastic pipes, the finish of the inner and outer surfaces directly affects the subsequent sealing, fluid resistance and overall life. Therefore, fine grinding of the plastic pipe surface is a key step to improve product quality.

[0003] Traditional plastic pipe polishing methods mostly use a single device, either focusing on outer wall polishing or limited to inner wall processing. This step-by-step operation mode is not only inefficient, but also easily leads to uneven polishing effects and increases production costs. In addition, some existing inner surface polishing equipment on the market, such as the plastic product inner surface polishing processing equipment disclosed in patent number CN201811023761.3, although it realizes the function of adjusting the polishing diameter and polishing depth according to the pipe diameter, significantly improving the flexibility and accuracy of inner wall polishing, it seems to be unable to cope with the processing of longer plastic pipes.

[0004] Specifically, although the equipment can match the inner walls of pipes of different diameters by adjusting the internal mechanism, when faced with long pipes, due to the limitations of the equipment structure, it is often difficult to ensure that the entire inner wall of the pipe can be polished evenly and effectively, especially at both ends and in the middle area of ​​the pipe. Inadequate polishing or excessive polishing may occur, which in turn affects the overall quality and performance of the pipe.

[0005] Therefore, the market is in urgent need of a fully automatic polishing device that can simultaneously polish the inner and outer walls of plastic pipes and can efficiently process pipes of any length, so as to overcome the shortcomings of the existing technology, improve production efficiency and ensure product quality. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a plastic part surface polishing device, which solves the problems raised by the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A plastic part surface polishing device, comprising:

[0008] A support seat, a fixed frame is fixedly connected to the top of the left side thereof;

[0009] A positioning plate is fixedly connected to the right side of the fixing frame, and the right end surface of the positioning plate is a smooth surface for the rotation of the pipeline;

[0010] An internal grinding assembly arranged on the right side of the positioning plate is used to grind the inner wall of the pipe;

[0011] An external grinding assembly fixed on the top of the fixed frame is used to grind the outer wall of the pipeline;

[0012] An adjustment assembly mounted on the positioning plate for adjusting the height of the external grinding assembly;

[0013] A control component installed on the top right side of the support base has a mounting component on the top for fixing the position of the pipeline;

[0014] The driving assembly installed on one side of the control assembly is used to drive the rotation of the mounting assembly and the internal grinding assembly.

[0015] Further, the internal grinding assembly includes:

[0016] A connecting plate fixedly connected to the driving assembly;

[0017] A fixed disk fixedly connected to the connecting disk via a connecting rod;

[0018] Rotate the gear connected to the fixed plate;

[0019] Three rack seats are arranged in a circle on the outer side of the gear, each rack seat is provided with a moving block, and the other end of the moving block is fixedly connected with an inner grinding piece;

[0020] Three movable grooves are fixed on the left side of the connecting plate, and the inner grinding parts are slidably connected with the movable grooves through the stabilizing blocks;

[0021] The bearing seat and the driving rod are installed on the fixed plate. The driving rod is slidably or threadedly connected to the rack seat and is used to adjust the position of the rack seat, thereby driving the inner grinding part to fit the inner wall of the pipeline.

[0022] Further, the external grinding assembly includes:

[0023] a lifting plate fixed to the top of the fixed frame;

[0024] An external grinding part plugged into the lifting plate;

[0025] A positioning frame fixed on both sides of the lifting plate, wherein two clamping blocks are arranged in the positioning frame for clamping the external grinding piece;

[0026] A locking rod threaded onto the top of the positioning frame is used to secure the position of the outer grinding piece.

[0027] Furthermore, the adjustment component includes:

[0028] A slide groove provided on the positioning plate;

[0029] A lifting block slidably connected to the slide groove, the lifting block being arranged on the outer wall of the outer grinding piece;

[0030] The adjusting rod connected to the top of the lifting block is rotated, and the adjusting rod is threadedly connected to the positioning plate to adjust the height of the outer grinding part.

[0031] Furthermore, the control component includes:

[0032] A slide rail fixed to the top of the support base;

[0033] A slide frame is slidably connected to the slide rail, the bottom of the slide frame is connected to the support seat through a screw rod, and the screw rod is driven by a forward and reverse motor fixed on the support seat;

[0034] A moving plate is slidably connected to the slide rail, and the top of the moving plate is connected to the arc block through an upgrade rod to support the bottom of the pipeline;

[0035] The fixing bolts fastened on both sides of the moving plate are used to fix the position of the moving plate.

[0036] Furthermore, the installation component includes:

[0037] A support plate fixed to the top of the skid frame;

[0038] A rotating shaft connected to the support plate is rotatably connected to which a limit plate and a gear ring are fixedly connected;

[0039] The L-shaped fixing rod connected to the limit plate is rotated, one end of the L-shaped fixing rod is hinged with an arc plate, and the other end is connected to the adjustment block through a linkage block. The adjustment block is driven by a threaded rod and is used to fix the position of the pipeline.

[0040] Furthermore, the driving assembly includes:

[0041] A drive motor fixed to the front end of the slide frame;

[0042] A transmission rod fixedly connected to the output end of the driving motor, on which a driving gear and a clamping block are fixed;

[0043] The reciprocating screw rod installed on the fixed frame is rotated, and the clamping block is connected with the reciprocating screw rod in a transverse sliding manner;

[0044] A traction plate threadedly connected to the reciprocating screw rod, the traction plate being connected to the internal grinding assembly via a push rod;

[0045] A limit rod is slidably connected to the traction plate, and the limit rod is fixedly installed on the fixed frame.

[0046] Furthermore, the driving assembly drives the pipe on the mounting assembly to rotate through the meshing transmission of the active gear and the ring gear, and realizes the lateral reciprocating movement of the internal grinding assembly on the inner wall of the pipe through the rotation of the reciprocating screw, thereby cooperating with the external grinding assembly to grind the inner and outer walls of the pipe.

[0047] The present invention provides a plastic part surface polishing device. Compared with the prior art, the device has the following beneficial effects:

[0048] 1. Significantly improve grinding efficiency: Through innovative mechanical structure design, the present invention can grind the inner and outer walls of plastic pipes at the same time, avoiding the time consumption of grinding the inner and outer walls separately in the traditional method, greatly improving the overall efficiency of the grinding operation. In addition, the pipe rotates automatically under the action of the driving component, ensuring the uniformity and consistency of the grinding surface, further improving the grinding quality.

[0049] 2. Enhanced working flexibility: The positioning plate, control assembly and installation assembly of the present invention cooperate with each other, and can easily adapt to and stably clamp and fix pipes of different diameters, without replacing or adjusting too many parts, and can realize the processing of pipes of various specifications. At the same time, this design also enables the equipment to process pipes of any length, breaking the limitation of traditional equipment on pipe length, and improving the working flexibility and application scope of the equipment.

[0050] 3. Reduce labor intensity: The highly automated design allows operators to perform simple startup and monitoring operations when using the present invention, without having to hold tools for a long time for manual grinding, thereby greatly reducing the labor intensity of operators and reducing the risk of physical injury caused by long-term repetitive labor.

[0051] 4. Improve grinding quality: The design of grinding the inner and outer walls at the same time, combined with the comprehensive and uniform grinding effect brought by the self-rotation of the pipe, makes the pipe surface smoother and flatter, reduces the flaws and defects caused by uneven grinding, and improves the overall quality and use value of the pipe.

[0052] 5. Enhance the practicability of the equipment: The grinding device of the present invention is not only suitable for the production and processing of plastic pipes, but can also be appropriately adjusted according to actual needs and applied to the grinding operations of tubular products of other similar materials, showing strong practicability and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0054] Figure 2 It is a schematic diagram of the structure of the internal grinding component in the present invention;

[0055] Figure 3It is a structural schematic diagram of the rack seat in the present invention;

[0056] Figure 4 It is a schematic diagram of the structure of the external grinding component and the adjustment component in the present invention;

[0057] Figure 5 It is a structural schematic diagram of the control component in the present invention;

[0058] Figure 6 It is a structural schematic diagram of the installation components in the present invention;

[0059] Figure 7 It is a schematic diagram of the structure of the driving component in the present invention.

[0060] In the figure: 1, support seat; 2, fixed frame; 3, positioning plate; 4, internal grinding assembly; 5, external grinding assembly; 6, adjustment assembly; 7, installation assembly; 8, control assembly; 9, drive assembly; 41, connecting plate; 42, fixed plate; 43, gear; 44, rack seat; 441, arc groove; 442, bearing seat; 443, drive rod; 45, moving block; 46, internal grinding piece; 47, stabilizing block; 48, moving groove; 51, lifting plate; 52, external grinding piece; 53, positioning frame; 54, clamping block; 55, locking rod; 61, slide groove; 62, lifting block; 63, adjusting rod; 71. Support plate; 72. Rotating shaft; 73. Limiting plate; 74. Through slot; 75. Gear ring; 76. Positioning block; 77. L-shaped fixing rod; 78. Arc plate; 79. Linkage block; 710. Adjusting block; 711. Threaded rod; 81. Slide rail; 82. Slide frame; 83. Forward and reverse motor; 84. Screw rod; 85. Moving plate; 86. Upgrade rod; 87. Arc block; 88. Threaded hole; 89. Fixing bolt; 91. Driving motor; 92. Transmission rod; 93. Driving gear; 94. Clamping block; 95. Reciprocating screw rod; 96. Pull plate; 97. Limiting rod; 98. Push rod. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] See also Figure 1-7The present invention provides a technical solution: a plastic part surface polishing device, comprising a support seat 1, a fixed frame 2 is fixedly connected to the top left side of the support seat 1, a positioning plate 3 is fixedly connected to the right side of the fixing frame 2, the right end surface of the positioning plate 3 is a smooth surface, which is used for the rotation of the pipeline, an internal polishing component 4 for polishing the inner wall of the pipeline is arranged on the right side of the positioning plate 3, an external polishing component 5 for polishing the inner wall of the pipeline is arranged on the top of the fixing frame 2, an adjustment component 6 for adjusting the height of the external polishing component 5 is arranged on the positioning plate 3, a control component 8 is arranged on the top right side of the support seat 1, a mounting component 7 for fixing the position of the pipeline is arranged on the top of the control component 8, and a driving component 9 for driving the mounting component 7 to rotate is arranged on one side of the control component 8.

[0063] See also Figure 2 , Figure 3 The internal grinding assembly 4 includes a connecting disk 41 fixedly connected to the driving assembly 9, the right end of the connecting disk 41 is fixedly connected to the fixed disk 42 through a connecting rod, the right end of the fixed disk 42 is rotatably connected to the gear 43, the outer side of the gear 43 is circumferentially provided with three rack seats 44, a moving block 45 is provided on the rack seat 44, the other end of the moving block 45 is fixedly connected to the inner grinding piece 46, the left side of the inner grinding piece 46 is fixedly connected to a stabilizing block 47, the left side of the connecting disk 41 is circumferentially provided with three moving grooves 48, the other end of the stabilizing block 47 is located in the moving groove 48 through a slider and is slidably connected to the connecting disk 41; an arc groove 441 is provided on the inner side of the rack seat 44, the side wall of the moving block 45 is located in the arc groove 441 and slides with the rack seat 44 The rack seat 44 is connected with a bearing seat 442 fixedly mounted on the fixed plate 42 on both sides. The two bearing seats 442 are rotatably connected with driving rods 443. Two of the three driving rods 443 are slidably connected to the rack seat 44, and the other is threadedly connected to the rack seat 44. In the embodiment of the present invention, by rotating the driving rod 443 threadedly connected to the rack seat 44, the driving rod 443 drives the rack seat 44 to move to one side, and the rack seat 44 drives the meshing gear 43, and the gear 43 drives the other two rack seats 44 to rotate synchronously, so that the three rack seats 44 drive the three moving blocks 45 to move externally through the arc groove 441, thereby driving the outer walls of the three inner grinding parts 46 to fit the inner wall of the pipe to grind the inner wall of the pipe.

[0064] See also Figure 4The external grinding assembly 5 includes a lifting plate 51 fixedly installed on the top of the fixed frame 2. The lifting plate 51 can be lifted and lowered as the adjustment assembly 6 drives the external grinding piece 52 to rise and fall. The upper end of the lifting plate 51 is plugged with the external grinding piece 52, and the two sides of the lifting plate 51 are fixedly connected with positioning frames 53. Two blocks 54 for clamping the external grinding piece 52 are arranged on the inner side of the positioning frame 53. A locking rod 55 is threadedly connected to the top of the positioning frame 53. The bottom end of the locking rod 55 is rotatably connected to the bottom of the upper block 54. The lower block 54 is fixedly installed in the positioning frame 53, and the upper block 54 is slidably connected to the positioning frame 53. In the embodiment of the present invention, the locking rod 55 is rotated to drive the block 54 to move downward in the positioning frame 53, so that the upper and lower blocks 54 fix the position of the external grinding piece 52, ensuring the stability of the external grinding piece 52 during the grinding work, thereby facilitating the grinding process of the outer wall of the pipeline.

[0065] See also Figure 4 The adjustment component 6 includes a slide groove 61 opened at the upper end of the positioning disk 3, and the inner wall of the slide groove 61 is slidably connected with a lifting block 62, and the lifting block 62 is arranged on the outer wall of the outer grinding piece 52, and the top of the lifting block 62 is rotatably connected with an adjusting rod 63, the top of the adjusting rod 63 passes through the positioning disk 3, and the adjusting rod 63 is threadedly connected to the positioning disk 3. In the embodiment of the present invention, the lifting block 62 is driven to slide in the slide groove 61 by rotating the adjusting rod 63, so that the lifting block 62 drives the outer grinding piece 52 to move up and down, so that the height of the outer grinding piece 52 can be adjusted, and then it is adapted to the grinding of the outer wall of the pipe with different diameters.

[0066] See also Figure 5The control assembly 8 includes a slide rail 81 fixedly mounted at both ends of the top of the support seat 1, a slide frame 82 is slidably connected above the slide rail 81, a screw rod 84 is threadedly connected to the bottom of the slide frame 82, both ends of the screw rod 84 are rotatably mounted on the support seat 1, and a forward and reverse motor 83 is fixedly mounted on the right side of the support seat 1, the output end of the forward and reverse motor 83 is fixedly connected to one end of the screw rod 84, a moving plate 85 is slidably connected above the slide rail 81, and upgrade rods 86 are rotatably connected to the top two sides of the moving plate 85, and arc blocks 87 are threadedly connected to the outer walls of the two upgrade rods 86, a row of threaded holes 88 are provided on the outer wall of the slide rail 81, and both sides of the moving plate 85 are provided with There is a fixing bolt 89 that is compatible with the threaded hole 88. In the embodiment of the present invention, the fixing bolt 89 is loosened to release the restriction of the movable plate 85 and the slide rail 81, and then the position of the movable plate 85 is moved so that the arc block 87 is located below the middle position of the pipeline, and then the two upgrading rods 86 are rotated at the same time to drive the arc block 87 to move up and down, so that the arc block 87 directly processes the bottom of the pipeline, and then the fixing bolt 89 is tightened corresponding to the threaded hole 88. By turning on the forward and reverse motor 83 to drive the screw rod 84 to rotate, the screw rod 84 drives the installation component 7 to adjust the fixation of pipelines of different lengths before grinding.

[0067] See also Figure 6 The mounting assembly 7 includes a support plate 71 fixedly mounted on the top of the slide frame 82, the upper end of the support plate 71 is rotatably connected to a rotating shaft 72, the left end of the rotating shaft 72 is fixedly connected to a limiting plate 73, and the interior of the rotating shaft 72 is a hollow structure, the left side of the limiting plate 73 is circumferentially provided with three through grooves 74, the through grooves 74 and the positions of the linkage block 79 and the L-shaped fixing rod 77 are mutually adapted, the outer wall of the limiting plate 73 is fixedly connected to a gear ring 75, the left center position of the limiting plate 73 is fixedly connected to a positioning block 76, the outer wall of the positioning block 76 is rotatably connected to three L-shaped fixing rods 77, the left end of the L-shaped fixing rod 77 is hinged with an arc plate 78, and the right end of the L-shaped fixing rod 77 is rotatably connected to the A linkage block 79 is connected, and the other ends of the three adjustment blocks 710 are hinged with an adjustment block 710. A threaded rod 711 is rotatably connected to the surface of the adjustment block 710. The left end of the threaded rod 711 is rotatably connected to the inner wall of the limit plate 73, and the right end extends to the outside through the rotating shaft 72 and the support plate 71. In the embodiment of the present invention, by rotating the threaded rod 711, the threaded rod 711 drives the adjustment block 710 to move horizontally, and the adjustment block 710 drives the linkage block 79 to move, so that the linkage block 79 drives the L-shaped fixing rod 77 located on the positioning block 76 to rotate, so that the L-shaped fixing rod 77 drives the arc plate 78 to fit and fix the inner wall of the pipe, thereby fixing the position of the pipe.

[0068] See also Figure 7The driving assembly 9 includes a driving motor 91 fixedly mounted on the top of the front end of the slide frame 82, the output end of the driving motor 91 is fixedly connected to a transmission rod 92, the right end of the transmission rod 92 is fixedly connected to a driving gear 93, and the driving gear 93 is meshed with the gear ring 75 for transmission, the left outer wall of the transmission rod 92 is fixedly connected to a clamping block 94, and the left side of the transmission rod 92 is laterally slidably connected to a reciprocating screw rod 95 through the clamping block 94, and the reciprocating screw rod 95 is rotatably mounted on the fixed frame 2, the outer wall of the reciprocating screw rod 95 is threadedly connected to a traction plate 96, the other end of the traction plate 96 is fixedly connected to a push rod 98, and the other end of the push rod 98 is fixedly connected to the internal grinding assembly 4, the middle part of the traction plate 96 is slidably connected to a limiting rod 97, and the limiting rod 97 is fixedly mounted on the fixed frame 2. In the embodiment of the present invention, the driving gear 93 and the transmission gear 93 can be driven by moving the position of the slide frame 82. The movable rod 92 moves synchronously with the clamping block 94, and the transmission rod 92 cooperates with the clamping block 94 to slide horizontally on the reciprocating screw rod 95, thereby adjusting the length of the transmission rod 92, and the transmission rod 92 is driven to rotate by turning on the driving motor 91, and the transmission rod 92 drives the clamping block 94 and the driving gear 93 to rotate, and the driving gear 93 drives the gear ring 75 meshing on one side to rotate, and the gear ring 75 drives the limit plate 73 to rotate, thereby driving the pipeline installed on the installation component 7 to rotate, and the clamping block 94 will drive the reciprocating screw rod 95 to rotate, and the reciprocating screw rod 95 will drive the traction plate 96 located on the limit rod 97 to move back and forth horizontally, so that the traction plate 96 drives the push rod 98 to move back and forth horizontally, so that the push rod 98 drives the internal grinding component 4 located on the inner wall of the pipeline to move back and forth horizontally, so that the internal grinding component 4 and the external grinding component 5 can grind the inner and outer walls of the pipeline.

[0069] Working principle of plastic product internal and external surface grinding equipment:

[0070] Step 1: Set the pipeline between the installation component 7 and the positioning plate 3, and drive the rack seat 44 to move through the driving rod 443, so that the rack seat 44 drives the moving block 45 and the inner grinding piece 46 to move toward the outer wall and inner wall of the pipeline, so that the inner grinding piece 46 fits with the inner wall of the pipeline, and then move the left end of the pipeline to the left, so that the left end of the pipeline contacts the outer wall of the positioning plate 3, and then start the screw rod 84 to drive the screw rod 84 to rotate, and the screw rod 84 drives the slide frame 82 and the installation component 7 to move toward the right end of the pipeline, so that the left end of the limit plate 73 fits with the right end of the pipeline, and then fix the position of the pipeline through the installation component 7, and then adjust the position of the moving plate 85, so that the arc block 87 supports the bottom of the pipeline;

[0071] Step 2: Adjust the position of the outer polishing member 52 by adjusting the assembly 6 so that the outer polishing member 52 fits the outer wall of the pipe, and then fix the position of the outer polishing member 52 by the outer polishing assembly 5;

[0072] The third step: by turning on the driving motor 91 to drive the transmission rod 92 to rotate, the transmission rod 92 drives the clamping block 94 and the driving gear 93 to rotate, the driving gear 93 drives the meshing ring gear 75 on one side to rotate, the ring gear 75 drives the limit plate 73 to rotate, thereby driving the pipe installed on the mounting assembly 7 to rotate, and the clamping block 94 will drive the reciprocating screw 95 to rotate, and the reciprocating screw 95 will drive the traction plate 96 located at the limit rod 97 to move back and forth laterally, so that the traction plate 96 drives the push rod 98 to move back and forth laterally, so that the push rod 98 drives the internal grinding assembly 4 located at the inner wall of the pipe to move back and forth laterally, so that the internal grinding assembly 4 and the external grinding assembly 5 can grind the inner and outer walls of the pipe.

Claims

1. A plastic part surface polishing device, characterized in that: include: A support seat, a fixed frame is fixedly connected to the top of the left side thereof; A positioning plate is fixedly connected to the right side of the fixing frame, and the right end surface of the positioning plate is a smooth surface for the rotation of the pipeline; An internal grinding assembly arranged on the right side of the positioning plate is used to grind the inner wall of the pipe; An external grinding assembly fixed on the top of the fixed frame is used to grind the outer wall of the pipeline; An adjustment assembly mounted on the positioning plate for adjusting the height of the external grinding assembly; A control component installed on the top right side of the support base has a mounting component on the top for fixing the position of the pipeline; The driving assembly installed on one side of the control assembly is used to drive the rotation of the mounting assembly and the internal grinding assembly.

2. A plastic part surface polishing device according to claim 1, characterized in that: The internal grinding assembly comprises: A connecting plate fixedly connected to the driving assembly; A fixed disk fixedly connected to the connecting disk via a connecting rod; Rotate the gear connected to the fixed plate; Three rack seats are arranged in a circle on the outer side of the gear, each rack seat is provided with a moving block, and the other end of the moving block is fixedly connected with an inner grinding piece; Three movable grooves are fixed on the left side of the connecting plate, and the inner grinding parts are slidably connected with the movable grooves through the stabilizing blocks; The bearing seat and the driving rod are installed on the fixed plate. The driving rod is slidably or threadedly connected to the rack seat and is used to adjust the position of the rack seat, thereby driving the inner grinding part to fit the inner wall of the pipeline.

3. A plastic part surface polishing device according to claim 1, characterized in that: The external grinding assembly comprises: a lifting plate fixed to the top of the fixed frame; An external grinding part plugged into the lifting plate; A positioning frame fixed on both sides of the lifting plate, wherein two clamping blocks are arranged in the positioning frame for clamping the external grinding piece; A locking rod threaded onto the top of the positioning frame is used to secure the position of the outer grinding piece.

4. A plastic part surface polishing device according to claim 1, characterized in that: The adjustment component comprises: A slide groove provided on the positioning plate; A lifting block slidably connected to the slide groove, the lifting block being arranged on the outer wall of the outer grinding piece; The adjusting rod connected to the top of the lifting block is rotated, and the adjusting rod is threadedly connected to the positioning plate to adjust the height of the outer grinding part.

5. The plastic part surface polishing device according to claim 1, characterized in that: The control component comprises: A slide rail fixed to the top of the support base; A slide frame is slidably connected to the slide rail, the bottom of the slide frame is connected to the support seat through a screw rod, and the screw rod is driven by a forward and reverse motor fixed on the support seat; A moving plate is slidably connected to the slide rail, and the top of the moving plate is connected to the arc block through an upgrade rod to support the bottom of the pipeline; The fixing bolts fastened on both sides of the moving plate are used to fix the position of the moving plate.

6. A plastic part surface polishing device according to claim 1, characterized in that: The installation assembly includes: A support plate fixed to the top of the skid frame; A rotating shaft connected to the support plate is rotatably connected to which a limit plate and a gear ring are fixedly connected; The L-shaped fixing rod connected to the limit plate is rotated, one end of the L-shaped fixing rod is hinged with an arc plate, and the other end is connected to the adjustment block through a linkage block. The adjustment block is driven by a threaded rod and is used to fix the position of the pipeline.

7. A plastic part surface polishing device according to claim 1, characterized in that: The drive assembly comprises: A drive motor fixed to the front end of the slide frame; A transmission rod fixedly connected to the output end of the driving motor, on which a driving gear and a clamping block are fixed; The reciprocating screw rod installed on the fixed frame is rotated, and the clamping block is connected with the reciprocating screw rod in a transverse sliding manner; A traction plate threadedly connected to the reciprocating screw rod, the traction plate being connected to the internal grinding assembly via a push rod; A limit rod is slidably connected to the traction plate, and the limit rod is fixedly installed on the fixed frame.

8. A plastic part surface polishing device according to claim 7, characterized in that: The driving assembly drives the pipe on the mounting assembly to rotate through the meshing transmission of the active gear and the gear ring, and realizes the lateral reciprocating movement of the internal grinding assembly on the inner wall of the pipe through the rotation of the reciprocating screw, thereby cooperating with the external grinding assembly to grind the inner and outer walls of the pipe.

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