Plastic product flash trimming device

Abstract

The utility model belongs to the technical field of plastic product processing, and particularly relates to a plastic product trimming device which comprises a rack, a clamping mechanism, a trimming mechanism and a polishing mechanism. The clamping mechanism comprises a moving assembly and a clamping assembly. The edge cutting mechanism comprises an edge cutting support, an edge cutting motor, an edge cutting rotating shaft, a first-stage edge cutting assembly and a second-stage edge cutting assembly. The first-stage edge cutting assembly comprises a first-stage transmission belt, a first-stage transmission wheel, a first-stage synchronous wheel, a first-stage cutter shaft and a first-stage cutter. The second-stage edge cutting assembly comprises a second-stage transmission belt, a second-stage transmission wheel, a second-stage synchronous wheel, a second-stage cutter shaft and a second-stage cutter. The grinding mechanism comprises a displacement assembly and a grinding assembly. According to the trimming device for the flash of the plastic product, the trimming operation of the plastic product is automatically completed through the trimming mechanism, meanwhile, the polishing and deburring operation of the plastic product can be automatically completed through the polishing mechanism, the trimming, polishing, deburring operation and deburring operation of the plastic product can be carried out at the same time, and the efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of plastic product processing technology, and in particular relates to a device for trimming burrs on plastic products. Background Technology

[0002] During the production of plastic products, due to the characteristics of processing techniques such as injection molding and extrusion molding, excess flash often forms on the edges of the products. This flash not only affects the appearance quality of the plastic products, but may also pose safety hazards such as scratches to users during subsequent use, and is also detrimental to product assembly and performance.

[0003] Some existing mechanical trimming and finishing equipment only has trimming function and cannot polish burrs on plastic products. The plastic products need to be transferred to other polishing equipment for polishing, resulting in low efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a device for trimming burrs on plastic products, which aims to solve the technical problem that existing technologies only have the function of cutting edges and cannot grind burrs on plastic products, requiring the plastic products to be transferred to other grinding equipment for grinding, resulting in low efficiency.

[0005] To achieve the above objectives, the plastic product flash trimming device provided in this utility model embodiment includes a frame, a clamping mechanism, a cutting mechanism, and a grinding mechanism. The clamping mechanism, the cutting mechanism, and the grinding mechanism are all connected to the frame. The clamping mechanism and the grinding mechanism are arranged opposite to each other, and the cutting mechanism is arranged on one side of the clamping mechanism.

[0006] The clamping mechanism includes a moving component and a clamping component, the clamping component being connected to the moving component, and the moving component being connected to the frame;

[0007] The edge trimming mechanism includes an edge trimming bracket, an edge trimming motor, an edge trimming shaft, a primary edge trimming assembly, and a secondary edge trimming assembly. The edge trimming bracket is connected to the frame, the edge trimming motor is connected to the edge trimming bracket, the edge trimming shaft is connected to the edge trimming motor, and both the primary and secondary edge trimming assemblies are connected to the edge trimming shaft. The primary edge trimming assembly is disposed on one side of the secondary edge trimming assembly.

[0008] The primary edge trimming assembly includes a primary transmission belt, a primary transmission wheel, a primary synchronous wheel, a primary cutter shaft, and a primary cutter. The primary transmission belt is fixedly wound around the edge trimming shaft, the primary transmission wheel, and the primary synchronous wheel. The primary transmission wheel is rotatably connected to the edge trimming bracket. The primary cutter shaft is connected to the primary synchronous wheel and the primary cutter.

[0009] The secondary edge trimming assembly includes a secondary transmission belt, a secondary transmission wheel, a secondary synchronous wheel, a secondary cutter shaft, and a secondary cutter. The secondary transmission belt is fixedly wound around the edge trimming shaft, the secondary transmission wheel, and the secondary synchronous wheel, respectively. The secondary transmission wheel is rotatably connected to the edge trimming bracket, and the secondary cutter shaft is connected to the secondary synchronous wheel and the secondary cutter, respectively.

[0010] The grinding mechanism includes a displacement component and a grinding component, wherein the displacement component is connected to the frame and the grinding component is connected to the displacement component.

[0011] As an optional solution of this utility model, the primary edge cutting assembly further includes a primary bearing, which is fixedly connected to the edge cutting bracket, and the primary cutter shaft is fixedly connected to the primary bearing.

[0012] As an optional embodiment of this invention, the secondary edge-cutting assembly further includes a secondary bearing, which is fixedly connected to the edge-cutting bracket, and the secondary cutter shaft is fixedly connected to the secondary bearing.

[0013] As an optional solution of this utility model, the moving component includes a moving base, a moving slide rail, a moving slider, a moving cylinder, a moving connecting plate, and a moving sliding plate. The moving base is fixedly connected to the frame, the moving slide rail is fixedly connected to the moving base, the moving slider is slidably connected to the moving slide rail, the moving cylinder is fixedly connected to the frame, and the moving connecting plate is fixedly connected to the moving cylinder and the moving sliding plate respectively.

[0014] As an optional embodiment of this utility model, the clamping assembly includes a clamping cylinder, a clamping movable seat, and a clamping fixed seat. The clamping cylinder is fixedly connected to the movable slide plate and to the clamping movable seat. The clamping movable seat and the clamping fixed seat are arranged parallel to each other. The clamping movable seat is slidably connected to the movable slide plate, and the clamping fixed seat is fixedly connected to the movable slide plate. Both the clamping movable seat and the clamping fixed seat are provided with clamping grooves.

[0015] As an optional solution of this utility model, the displacement assembly includes a displacement fixing seat, a displacement slide rail, a displacement slider, a displacement cylinder, and a displacement slide block. The displacement fixing seat is fixedly connected to the frame, the displacement slide rail is fixedly connected to the displacement fixing seat, the displacement slider is slidably connected to the displacement slide rail, and the displacement cylinder is fixedly connected to the displacement fixing seat and fixedly connected to the displacement slide block.

[0016] As an optional embodiment of this utility model, the grinding assembly includes a grinding machine base, a grinding motor, a grinding shaft, a grinding timing belt, a primary pulley, a primary shaft, a primary grinding screw, a secondary pulley, a secondary shaft, and a secondary grinding brush head. The grinding machine base is fixedly connected to the displacement slide, the grinding motor is fixedly connected to the grinding machine base, the grinding shaft is fixedly connected to the grinding motor, the grinding timing belt is fixedly wound around the primary pulley and the secondary pulley, the primary shaft is fixedly connected to the primary pulley and the primary grinding screw, and the secondary shaft is fixedly connected to the secondary pulley and the secondary grinding brush head.

[0017] The above-mentioned technical solutions in the plastic product flash trimming device provided in this embodiment of the utility model have at least one of the following technical effects:

[0018] The plastic product burr removal device provided in this application automatically completes the burr removal operation of plastic products through the burr removal mechanism. At the same time, the grinding mechanism can automatically complete the grinding and deburring operation of plastic products. The burr removal, grinding and deburring operations of plastic products can be carried out simultaneously, which improves efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A perspective view of the plastic product trimming device provided in the embodiment of this utility model.

[0021] Figure 2 A side view of the clamping mechanism of the plastic product trimming device provided in this embodiment of the utility model.

[0022] Figure 3 A perspective view of the clamping mechanism of the plastic product trimming device provided in this embodiment of the utility model.

[0023] Figure 4 A perspective view of the trimming mechanism of the plastic product trimming device provided in this embodiment of the utility model.

[0024] Figure 5 A perspective view of the grinding mechanism of the plastic product flash trimming device provided in this embodiment of the utility model.

[0025] The following are the labeling elements in the figure:

[0026] 1. Frame; 2. Clamping mechanism; 3. Trimming mechanism; 4. Grinding mechanism;

[0027] 21. Moving component; 22. Clamping component;

[0028] 31. Edge trimming bracket; 32. Edge trimming motor; 33. Edge trimming shaft; 34. Primary edge trimming assembly; 35. Secondary edge trimming assembly;

[0029] 41. Displacement component; 42. Grinding component;

[0030] 211. Movable base; 212. Movable slide rail; 213. Movable slider; 214. Movable cylinder; 215. Movable connecting plate; 216. Movable sliding plate;

[0031] 221. Clamping cylinder; 222. Clamping movable seat; 223. Clamping fixed seat;

[0032] 341. Primary drive belt; 342. Primary cutter shaft; 343. Primary cutter;

[0033] 351. Secondary transmission belt; 352. Secondary transmission pulley; 353. Secondary cutter shaft; 354. Secondary cutting blade;

[0034] 411. Displacement fixing seat; 412. Displacement slide rail; 413. Displacement slider; 414. Displacement cylinder; 415. Displacement slide block;

[0035] 420. Grinding machine base; 421. Grinding motor; 422. Grinding shaft; 423. Grinding timing belt; 424. Primary pulley; 425. Primary shaft; 426. Primary grinding screw; 427. Secondary pulley; 428. Secondary shaft; 429. Secondary grinding brush head. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0037] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0040] In one embodiment of this utility model, such as Figures 1-5 As shown, a device for trimming burrs on plastic products is provided, including a frame 1, a clamping mechanism 2, a trimming mechanism 3, and a grinding mechanism 4. The clamping mechanism 2, the trimming mechanism 3, and the grinding mechanism 4 are all connected to the frame 1. The clamping mechanism 2 and the grinding mechanism 4 are arranged opposite to each other, and the trimming mechanism 3 is arranged on one side of the clamping mechanism 2.

[0041] The clamping mechanism 2 includes a moving component 21 and a clamping component 22, the clamping component 22 being connected to the moving component 21, and the moving component 21 being connected to the frame 1.

[0042] The trimming mechanism 3 includes a trimming bracket 31, a trimming motor 32, a trimming shaft 33, a primary trimming assembly 34, and a secondary trimming assembly 35. The trimming bracket 31 is connected to the frame 1, the trimming motor 32 is connected to the trimming bracket 31, the trimming shaft 33 is connected to the trimming motor 32, and both the primary trimming assembly 34 and the secondary trimming assembly 35 are connected to the trimming shaft 33. The primary trimming assembly 34 is located on one side of the secondary trimming assembly 35.

[0043] The primary edge trimming assembly 34 includes a primary transmission belt 341, a primary transmission wheel, a primary synchronous wheel, a primary cutter shaft 342, and a primary cutter 343. The primary transmission belt 341 is fixedly wound around the edge trimming shaft 33, the primary transmission wheel, and the primary synchronous wheel. The primary transmission wheel is rotatably connected to the edge trimming bracket 31. The primary cutter shaft 342 is connected to the primary synchronous wheel and the primary cutter 343.

[0044] The secondary edge trimming assembly 35 includes a secondary drive belt 351, a secondary drive wheel 352, a secondary synchronous pulley, a secondary cutter shaft 353, and a secondary cutter 354. The secondary drive belt 351 is fixedly wound around the edge trimming shaft 33, the secondary drive wheel 352, and the secondary synchronous pulley. The secondary drive wheel 352 is rotatably connected to the edge trimming bracket 31. The secondary cutter shaft 353 is connected to the secondary synchronous pulley and the secondary cutter 354. The edge trimming motor 32 drives the edge trimming shaft 33 to rotate, which in turn drives the primary drive wheel and the primary synchronous pulley to rotate via the primary drive belt 341. This, in turn, drives the primary cutter shaft 342 and the primary cutter 343 to perform preliminary cutting of the flash on the plastic product. Simultaneously, the secondary drive wheel 352 and the secondary synchronous pulley are rotated via the secondary drive belt 351, which in turn drives the secondary cutter shaft 353 and the secondary cutter 354 to perform fine trimming of the flash after preliminary cutting. The primary edge trimming assembly 34 removes most of the flash, and the secondary edge trimming assembly 35 further improves the trimming accuracy and quality, reduces product damage, and ensures that the trimming effect meets the requirements.

[0045] The grinding mechanism 4 includes a displacement component 41 and a grinding component 42. The displacement component 41 is connected to the frame 1, and the grinding component 42 is connected to the displacement component 41.

[0046] The plastic product burr removal device provided in this application automatically completes the burr removal operation of the plastic product through the burr removal mechanism 3. At the same time, the grinding mechanism 4 can automatically complete the grinding and deburring operation of the plastic product. The burr removal, grinding and deburring operations of the plastic product can be carried out simultaneously, which improves efficiency.

[0047] In another embodiment of the present invention, the primary edge cutting assembly 34 further includes a primary bearing, which is fixedly connected to the edge cutting bracket 31, and the primary cutter shaft 342 is fixedly connected to the primary bearing, which provides support for the primary cutter shaft 342.

[0048] In another embodiment of the present invention, the secondary edge cutting assembly 35 further includes a secondary bearing, which is fixedly connected to the edge cutting bracket 31, and the secondary cutter shaft 353 is fixedly connected to the secondary bearing, which provides support for the secondary cutter shaft 353.

[0049] In another embodiment of this utility model, the movable component 21 includes a movable base 211, a movable slide rail 212, a movable slider 213, a movable cylinder 214, a movable connecting plate 215, and a movable sliding plate 216. The movable base 211 is fixedly connected to the frame 1, the movable slide rail 212 is fixedly connected to the movable base 211, the movable slider 213 is slidably connected to the movable slide rail 212, the movable cylinder 214 is fixedly connected to the frame 1, and the movable connecting plate 215 is fixedly connected to the movable cylinder 214 and the movable sliding plate 216 respectively. Furthermore, the clamping assembly 22 includes a clamping cylinder 221, a clamping movable seat 222, and a clamping fixed seat 223. The clamping cylinder 221 is fixedly connected to the movable slide plate 216 and to the clamping movable seat 222. The clamping movable seat 222 and the clamping fixed seat 223 are arranged in parallel opposite directions. The clamping movable seat 222 is slidably connected to the movable slide plate 216, and the clamping fixed seat 223 is fixedly connected to the movable slide plate 216. Both the clamping movable seat 222 and the clamping fixed seat 223 are provided with clamping grooves.

[0050] In the movable assembly 21, the movable base 211 is fixed to the frame 1 as a basic support. The movable slide rail 212 is installed on the movable base 211, and the movable slider 213 can slide on the slide rail, providing guidance for the movable slide plate 216. The movable cylinder 214 is fixed to the frame 1 and connected to the movable slide plate 216 through the movable connecting plate 215. When the movable cylinder 214 is working, the extension and retraction of the cylinder drives the movable connecting plate 215, thereby causing the movable slide plate 216 to slide along the movable slide rail 212, realizing the horizontal position adjustment of the clamping assembly 22, which can adapt to the placement needs of plastic products of different sizes.

[0051] The clamping assembly 22 uses the movable slide plate 216 as a carrier, and the clamping cylinder 221 is fixed on the movable slide plate 216 and connected to the clamping moving seat 222. When it is necessary to clamp the plastic product, the clamping cylinder 221 is activated, pushing the clamping moving seat 222 to move towards the clamping fixed seat 223. Since the clamping moving seat 222 can slide on the movable slide plate 216, while the clamping fixed seat 223 is fixed on the movable slide plate 216, the two are parallel and opposite, ultimately clamping the plastic product in the clamping groove. This parallel and opposite design with a clamping groove can provide a uniform and stable clamping force, preventing the plastic product from loosening or shifting during subsequent finishing processes such as trimming and grinding, ensuring finishing accuracy, and also avoiding damage to the plastic product due to unstable clamping, laying the foundation for efficient and accurate trimming of burrs.

[0052] In another embodiment of this utility model, the displacement assembly 41 includes a displacement fixing seat 411, a displacement slide rail 412, a displacement slider 413, a displacement cylinder 414, and a displacement slide block 415. The displacement fixing seat 411 is fixedly connected to the frame 1, the displacement slide rail 412 is fixedly connected to the displacement fixing seat 411, the displacement slider 413 is slidably connected to the displacement slide rail 412, and the displacement cylinder 414 is fixedly connected to the displacement fixing seat 411 and fixedly connected to the displacement slide block 415. Furthermore, the grinding assembly 42 includes a grinding machine base 420, a grinding motor 421, a grinding shaft 422, a grinding timing belt 423, a primary pulley 424, a primary shaft 425, a primary grinding screw 426, a secondary pulley 427, a secondary shaft 428, and a secondary grinding brush head 429. The grinding machine base 420 is fixedly connected to the displacement slide 415, the grinding motor 421 is fixedly connected to the grinding machine base 420, the grinding shaft 422 is fixedly connected to the grinding motor 421, the grinding timing belt 423 is fixedly wound around the primary pulley 424 and the secondary pulley 427 respectively, the primary shaft 425 is fixedly connected to the primary pulley 424 and the primary grinding screw 426 respectively, and the secondary shaft 428 is fixedly connected to the secondary pulley 427 and the secondary grinding brush head 429 respectively.

[0053] The displacement fixing seat 411 is fixed on the frame 1 as a basic component. The displacement slide rail 412 is installed on the displacement fixing seat 411, and the displacement slider 413 can slide on the slide rail, providing a moving track for the displacement slide 415. The displacement cylinder 414 is fixed on the displacement fixing seat 411, and its piston rod is connected to the displacement slide 415. When the displacement cylinder 414 works, the extension and retraction of the piston rod drives the displacement slide 415 to slide linearly along the displacement slide rail 412, thereby realizing the precise adjustment of the horizontal position of the grinding component 42, so that it can be aligned with the flash of different parts of the plastic product.

[0054] The working principle of the grinding assembly 42 is to achieve the rotation of different grinding components through motor drive and belt transmission. The grinding motor 421 is fixed on the grinding machine base 420, and after starting, it drives the grinding shaft 422 to rotate. The grinding shaft 422 transmits power to the primary pulley 424 and the secondary pulley 427 through the grinding timing belt 423. The primary pulley 424 drives the primary shaft 425 and the primary grinding screw 426 fixed on it to rotate, and the secondary pulley 427 drives the secondary shaft 428 and the secondary grinding brush head 429 to rotate. The primary grinding screw 426 performs preliminary grinding on the surface of the product with a large grinding force to remove larger uneven parts; the secondary grinding brush head 429 polishes the surface after preliminary grinding in a more refined manner, making the surface of the product smooth and flat.

[0055] The overall working process is as follows: First, based on the location of the flash on the plastic product, the displacement cylinder 414 is activated to move the grinding component 42 to a suitable position; then, the grinding motor 421 is activated, and the first-stage grinding screw 426 performs preliminary grinding on the flash and the surface of the product; subsequently, the second-stage grinding brush head 429 performs fine grinding on the area that has undergone preliminary grinding to eliminate residual unevenness and grinding marks; after grinding is completed, the grinding motor 421 is turned off, and the grinding component 42 is moved back to the initial position or to the next grinding position by the displacement cylinder 414, so as to carry out the next grinding operation.

[0056] The plastic product burr removal device provided in this application automatically completes the burr removal operation of the plastic product through the burr removal mechanism 3. At the same time, the grinding mechanism 4 can automatically complete the grinding and deburring operation of the plastic product. The burr removal, grinding and deburring operations of the plastic product can be carried out simultaneously, which improves efficiency.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flash trim device for plastic articles, characterized in that, The utility model provides a cutting and polishing device for wood board, including frame, clamping mechanism, trimming mechanism and polishing mechanism, clamping mechanism, trimming mechanism and polishing mechanism all are connected to frame, clamping mechanism is opposite with polishing mechanism, trimming mechanism sets up in clamping mechanism one side, The clamping mechanism includes a moving assembly and a clamping assembly, the clamping assembly is connected to the moving assembly, and the moving assembly is connected to the frame. The trimming mechanism includes a trimming support, a trimming motor, a trimming rotating shaft, a first trimming assembly and a second trimming assembly, the trimming support is connected to the frame, the trimming motor is connected to the trimming support, the trimming rotating shaft is connected to the trimming motor, the first trimming assembly and the second trimming assembly are both connected to the trimming rotating shaft, and the first trimming assembly is arranged on one side of the second trimming assembly. The first trimming assembly includes a first transmission belt, a first transmission wheel, a first synchronous wheel, a first cutter shaft and a first cutter, the first transmission belt is fixedly arranged around the trimming rotating shaft, the first transmission wheel and the first synchronous wheel, the first transmission wheel is rotationally connected to the trimming support, and the first cutter shaft is connected to the first synchronous wheel and the first cutter. The second trimming assembly includes a second transmission belt, a second transmission wheel, a second synchronous wheel, a second cutter shaft and a second cutter, the second transmission belt is fixedly arranged around the trimming rotating shaft, the second transmission wheel and the second synchronous wheel, the second transmission wheel is rotationally connected to the trimming support, and the second cutter shaft is connected to the second synchronous wheel and the second cutter. The polishing mechanism includes a displacement assembly and a polishing assembly, the displacement assembly is connected to the frame, and the polishing assembly is connected to the displacement assembly.

2. A flash trim device for plastic articles as defined in claim 1, characterized in that The first trimming assembly further includes a first bearing, the first bearing is fixedly connected to the trimming support, and the first cutter shaft is fixedly connected to the first bearing.

3. The flash trim device for plastic articles of claim 1, wherein, The second trimming assembly further includes a second bearing, the second bearing is fixedly connected to the trimming support, and the second cutter shaft is fixedly connected to the second bearing.

4. The flash trim device for plastic articles of claim 1 wherein, The moving assembly includes a moving base, a moving slide rail, a moving slide block, a moving cylinder, a moving connecting plate and a moving slide plate, the moving base is fixedly connected to the frame, the moving slide rail is fixedly connected to the moving base, the moving slide block is slidingly connected to the moving slide rail, the moving cylinder is fixedly connected to the frame, and the moving connecting plate is fixedly connected to the moving cylinder and the moving slide plate.

5. A flash trim device for plastic articles as defined in claim 4, wherein The clamping assembly includes a clamping cylinder, a clamping moving seat and a clamping fixed seat, the clamping cylinder is fixedly connected to the moving slide plate and fixedly connected to the clamping moving seat, the clamping moving seat and the clamping fixed seat are arranged in parallel and opposite to each other, the clamping moving seat is slidingly connected to the moving slide plate, the clamping fixed seat is fixedly connected to the moving slide plate, and clamping grooves are arranged on the clamping moving seat and the clamping fixed seat.

6. The flash trim device for plastic articles of claim 1 wherein, The displacement assembly comprises a displacement fixing base, a displacement sliding rail, a displacement sliding block, a displacement cylinder and a displacement sliding seat, the displacement fixing base is fixedly connected to the rack, the displacement sliding rail is fixedly connected to the displacement fixing base, the displacement sliding block is slidingly connected to the displacement sliding rail, the displacement cylinder is fixedly connected to the displacement fixing base and fixedly connected with the displacement sliding seat.

7. A flash trim device for plastic articles as defined in claim 6, wherein The polishing assembly comprises a polishing base, a polishing motor, a polishing rotating shaft, a polishing synchronous belt, a first-stage belt pulley, a first-stage rotating shaft, a first-stage polishing screw rod, a second-stage belt pulley, a second-stage rotating shaft and a second-stage polishing brush head, the polishing base is fixedly connected to the displacement sliding seat, the polishing motor is fixedly connected to the polishing base, the polishing rotating shaft is fixedly connected to the polishing motor, the polishing synchronous belt is fixedly arranged around the first-stage belt pulley and the second-stage belt pulley respectively, the first-stage rotating shaft is fixedly connected with the first-stage belt pulley and the first-stage polishing screw rod respectively, and the second-stage rotating shaft is fixedly connected with the second-stage belt pulley and the second-stage polishing brush head respectively.

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