Customized cutting method and equipment based on color master batch plastic

Abstract

The invention relates to the technical field of plastic processing, in particular to a customized cutting method and equipment based on color master batch plastics, and the equipment mainly comprises injection molding equipment and a clamping assembly arranged in the injection molding equipment; the clamping assembly comprises a driving shaft arranged in the injection molding equipment, a moving block arranged on the outer wall of the driving shaft, a fixed table arranged on the outer wall of the moving block and a plurality of abutting rods connected with the fixed table in a sliding mode, the abutting rods are arranged in an array mode, and the fixed table is externally connected with an air pressure system; the cutting assembly comprises a fixed frame arranged in the injection molding equipment, laser cutting equipment slidably connected with the fixed frame, a toothed bar arranged on the outer wall of the laser cutting equipment and a tow bar rotationally arranged in the fixed frame, and a gear engaged with the toothed bar is arranged outside the tow bar; according to the scheme, injection molding and cutting are integrated, the transfer link is omitted, the production efficiency is greatly improved, and the cost is reduced; the flexible clamping structure is suitable for products in different shapes, and clamping damage is avoided.

Description

Technical Field

[0001] This invention relates to the field of plastic processing technology, and in particular to a customized cutting method and equipment based on color masterbatch plastics. Background Technology

[0002] In the production and processing of masterbatch plastic products, injection molding and subsequent cutting processes are usually independent. The product must first be pre-formed using injection molding equipment, and then the molded part is transferred to cutting equipment for precision processing such as drilling and trimming. This separate processing model has significant drawbacks: the transfer process easily causes surface scratches and positioning deviations, leading to a decrease in subsequent cutting accuracy and making it difficult to meet the assembly requirements of high-precision parts; at the same time, the multi-equipment transfer increases production processes and time costs, reducing overall production efficiency.

[0003] In addition, traditional cutting components have poor linkage with injection molding equipment, there is no standard for positioning, and the cutting origin, path, and parameters need to be manually adjusted repeatedly. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a customized cutting method based on color masterbatch plastic, which includes flexible clamping and positioning: silicone flexible limiting blocks are arranged on the platform, the color masterbatch plastic parts are placed between the limiting blocks, an adjustable negative pressure pump is started, and the negative pressure value is adjusted according to the thickness of the plastic parts to achieve clamping without rigid damage; In the CNC system, a customized cutting path is drawn, and the cutting order is set to inner hole first and then outer contour. Then, based on the substrate type and thickness of the color masterbatch plastic part, the power of the laser, the cutting speed and the corresponding focal length parameters are matched. Select color masterbatch plastic waste of the same material and thickness as the part to be cut for trial cutting, and adjust the laser power or cutting speed according to the cut quality. Turn on the dust removal fan, execute the formal cutting program, and turn off the negative pressure pump to remove the workpiece after cutting is completed.

[0006] As a preferred embodiment of the customized cutting method based on masterbatch plastic described in this invention, the following settings are made: for masterbatch plastic parts with a thickness of 0.1–0.5 mm, the laser power is set to 30–50 W, the cutting speed to 80–120 mm / s, and the focal length to 12–15 mm; for masterbatch plastic parts with a thickness of 0.5–2 mm, the laser power is set to 50–80 W, the cutting speed to 40–80 mm / s, and the focal length to 15–18 mm, supplemented by 0.1 MPa low-pressure air purging; for masterbatch plastic parts with a thickness of 2–10 mm, the laser power is set to 80–150 W, the cutting speed to 10–40 mm / s, and the focal length to 18–25 mm, supplemented by 0.3 MPa high-pressure air purging, wherein the air purging is used to disperse the molten plastic to reduce edge adhesion.

[0007] The beneficial effects of this invention are: it utilizes laser cutting to improve product processing precision.

[0008] As a preferred embodiment of the customized cutting equipment based on masterbatch plastic described in this invention, the equipment includes an injection molding device and a clamping assembly disposed inside the injection molding device. The clamping assembly includes a drive shaft located inside the injection molding equipment, a movable block located on the outer wall of the drive shaft, a fixed platform located on the outer wall of the movable block, and abutment rods slidably connected to the fixed platform. The array of abutment rods includes multiple rods, and the fixed platform is externally connected to an air pressure system. The cutting assembly includes a fixed frame disposed inside the injection molding equipment, a laser cutting device slidably connected to the fixed frame, a toothed rod disposed on the outer wall of the laser cutting device, a rotatable drag rod disposed inside the fixed frame, and a gear on the outside of the drag rod meshing with the toothed rod.

[0009] As a preferred embodiment of the customized cutting equipment based on masterbatch plastic described in this invention, the injection molding equipment includes a feeding tank, a driving device connected to the feeding tank, an injection rod connected to the driving device, and an automatic equipment housing for installing clamping components and cutting equipment at the other end of the injection rod. The automatic equipment housing is provided with a moving module connected to the injection rod, and the moving module includes a pneumatic hole and a moving disk for mold installation.

[0010] As a preferred embodiment of the customized cutting device based on masterbatch plastic described in this invention, the drive shaft is provided in two parts, the outer wall of the drive shaft is provided with a double helical groove, and the inner wall of the moving block is provided with a first slider that can slide along the inside of the double helical groove.

[0011] As a preferred embodiment of the customized cutting device based on color masterbatch plastic described in this invention, the outer wall of the drive shaft is provided with a first slide rail, the outer wall of the drive shaft is sleeved with a first rotating ring, and the inner wall of the first rotating ring is provided with a second slider that can slide along the first slide rail. The outer wall of the fixed platform is provided with a notch, and a third slider is provided inside the notch. The outer wall of the first rotating ring is provided with a buffer block that can contact the third slider.

[0012] In a preferred embodiment of the customized cutting device based on masterbatch plastic described in this invention, the two moving blocks on the outer walls of the drive shafts are connected by a tray. The outer wall of the tray is provided with a first sliding rod, and the outer wall of the fixed platform is provided with a first sliding groove for the first sliding rod to slide in. The first sliding groove is provided with a first elastic element.

[0013] As a preferred embodiment of the customized cutting device based on masterbatch plastic described in this invention, the fixed table surface is provided with a first movable channel for the sliding of the abutment rod, a sealing ring is fixed inside the first movable channel, a limiting plate is provided at one end of the abutment rod near the inside of the first movable channel, a ball head is provided at the other end of the abutment rod, and a second elastic element is provided inside the first movable channel.

[0014] As a preferred embodiment of the customized cutting equipment based on masterbatch plastic described in this invention, the fixed platform end face is provided with a magnetic chuck, the outer wall of the magnetic chuck is provided with a clearance groove, the magnetic chuck is provided with a receiving groove through it, and a third elastic element is provided between the magnetic chuck and the fixed platform.

[0015] As a preferred embodiment of the customized cutting device based on masterbatch plastic described in this invention, the fixing frame includes a magnetic suction surface.

[0016] The beneficial effects of this invention are: integrated injection molding and cutting operations eliminate the need for transfer links, greatly improving production efficiency and reducing costs; the flexible clamping structure adapts to products of different shapes, avoiding clamping damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram of the clamping component and the cutting component in this invention; Figure 3 This is a top view of the clamping component structure in this invention; Figure 4 This is a schematic diagram of the cutting component structure in this invention; Figure 5 In this invention Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 6 In this invention Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 7 This is a schematic diagram of the clamping component structure in this invention. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0022] The first embodiment of the present invention provides a customized cutting method based on color masterbatch plastic.

[0023] Specifically, flexible clamping and positioning: silicone flexible limiting blocks are arranged on the platform, the color masterbatch plastic parts are placed between the limiting blocks, the adjustable negative pressure pump is started, and the negative pressure value is adjusted according to the thickness of the plastic parts to achieve clamping without rigid damage. In the CNC system, a customized cutting path is drawn, and the cutting order is set to inner hole first and then outer contour. Then, based on the substrate type and thickness of the color masterbatch plastic part, the power of the laser, the cutting speed and the corresponding focal length parameters are matched. Select color masterbatch plastic waste of the same material and thickness as the part to be cut for trial cutting, and adjust the laser power or cutting speed according to the cut quality. Turn on the dust removal fan, execute the formal cutting program, and turn off the negative pressure pump to remove the workpiece after cutting is completed.

[0024] Custom cutting was performed on a 1.2mm thick red PE masterbatch plastic decorative part. The part required a 10mm diameter inner hole and a 50mm x 50mm square outer contour. The specific operation involved first placing four rectangular silicone flexible locating blocks (60mm x 60mm spacing) at a designated station on the laser cutting platform. The plastic part was then placed between these blocks, and the adjustable negative pressure pump was activated and adjusted to -0.06MPa to ensure secure clamping without rigid damage. Subsequently, the CNC cutting system was opened, the corresponding 2D drawing was imported, and the cutting sequence was set to "inner hole first, outer contour second." Based on the characteristics of the PE substrate and its thickness ranging from 0.5 to 2mm, the laser power was set to 65W, the cutting speed to 60mm / s, and the focal length to 16mm. A 0.1MPa pressure was also applied. Low-pressure air purging function; then select red masterbatch plastic waste of the same material and thickness for trial cutting. Because there is slight adhesion at the cut, the laser power is finely adjusted to 70W and the cutting speed is reduced to 55mm / s before trial cutting again until the cut is flat without burrs and without obvious adhesion; finally, turn on the dust removal fan and start the formal cutting program. Example 2

[0025] Reference Figures 1-7 This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0026] Specifically, injection molding equipment 1, and clamping assembly 2 located inside the injection molding equipment; The clamping assembly 2 includes a drive shaft 21 located inside the injection molding equipment 1, a moving block 22 located on the outer wall of the drive shaft 21, a fixed platform 23 located on the outer wall of the moving block 22, and a contact rod 24 slidably connected to the fixed platform 23. Multiple contact rods 24 are arranged in an array, and the fixed platform 23 is connected to an external air pressure system. The cutting assembly 3 includes a fixed frame 31 located inside the injection molding equipment 1, a laser cutting device 32 slidably connected to the fixed frame 31, a toothed rod 321 located on the outer wall of the laser cutting device 32, a rotatable drag rod 33 located inside the fixed frame 31, and a gear 34 located on the outside of the drag rod 33 that meshes with the toothed rod 321.

[0027] The injection molding equipment 1 melts plastic and injects it into a mold of a specific shape, which then cools and solidifies. Different molds can be used depending on the specific situation. Inside the injection molding equipment 1, there is a clamping assembly 2, including a drive shaft 21 rotatably mounted inside the equipment. Rotating the drive shaft 21 causes a moving block 22 to move along its surface. Simultaneously, a fixed platform 23 is mounted on the outer wall of the moving block 22. The fixed platform 23 is not solid; multiple abutment rods 24 slide up and down on the upper surface of the fixed platform 23. A pneumatic system is used to maintain the air pressure inside the fixed platform 23. The advantage of this design is that multiple abutment rods 24 are slidably mounted on the upper surface of the fixed platform 23. The abutment rods 24 can abut against different product surfaces. When a product is placed on the surface of the abutment rod 24 and pressed down, the protruding parts of the product begin to squeeze the abutment rod 24 downwards, causing it to open. The internal air pressure of the initial extrusion fixing table 23 is discharged outward through the air pressure system. When the lower surface of the product is in contact with the abutment rod 24, the product is no longer pressed down, and then the air pressure system is turned off, so that the internal gas remains at the existing air pressure without change. Multiple abutment rods 24 form a groove. When the next injection molded product is formed, it is pushed outward, causing the product to fall downward. The product will be adjusted into the groove that has been formed in the abutment rod 24, forming a fixing groove for the corresponding product, which can support the formed product. At the same time, because the shape of the groove is adapted to the outer surface of the product, the product will fit into the groove after falling, thus also achieving the positioning function. Then, the formed product is transported to the lower surface of the cutting component 3 through the drive shaft 21, and then the product is cut, including some processes that require precision processing such as drilling and edge trimming.

[0028] Meanwhile, the cutting assembly uses laser cutting. A fixed frame 31 is fixedly installed inside the injection molding equipment 1, and a laser cutting device 32 is slidably installed inside the fixed frame 31. The laser cutting device 32 can use existing technology. At the same time, a rack 321 is fixedly installed on both sides of the laser cutting device 32. A drag rod 33 is rotatably installed inside the fixed frame 31. A gear 34 is installed on the outer wall of the drag rod 33, and the gear 34 meshes with the rack 321. When the laser cutting device 32 moves downward, the rack 321 drives the gear 34 to rotate, and at the same time, drives the drag rod 33 to rotate inward. When the rack 321 moves upward, it drives the drag rod 33 to rotate outward. The advantage of this design is that when the fixed table 23 is transported to the bottom of the cutting assembly 3, the laser cutting device 32 can be moved downward by the telescopic motor, and at the same time, the drag rod 33 rotates inward to clamp the product. Then the laser begins to cut, the drive shaft 21 takes away the fixed table 23, and then the laser cutting device 32 moves upward, the drag rod 33 rotates outward, and the processed product falls down. Example 3

[0029] Reference Figures 1-7This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0030] Specifically, the injection molding equipment 1 includes a feed tank 11, a drive device 12 connected to the feed tank 11, an injection rod 13 connected to the drive device 12, and an automatic equipment housing 14 for installing the clamping assembly 2 and the cutting assembly 3 at the other end of the injection rod 13. The automatic equipment housing 14 is equipped with a moving module 141 connected to the injection rod 13. The moving module 141 includes a pneumatic hole 1411 and a moving disk 142 for mold installation.

[0031] The injection molding equipment 1 includes a feed tank 11, into which the raw materials for the product are added. Then, the drive device 12 transports the raw materials from the feed tank 11 to the injection rod 13, which can be conveyed using existing threaded technology. The raw materials are then heated and melted inside the injection rod 13 and injected into the moving module 141. The moving module 141 contacts the mold on the surface of the moving disk 142, injecting the molten plastic into the mold. The mold is then pulled open, and the pneumatic hole 1411 is connected to a pneumatic system. The molded product is then blown out of the mold and into the clamping assembly 2.

[0032] Preferably, there are two drive shafts 21. The outer wall of the drive shaft 21 is provided with a double helical groove 211, and the inner wall of the moving block 22 is provided with a first slider that can slide along the inside of the double helical groove 211.

[0033] The drive shaft 21 has two sections. The outer surface of each drive shaft 21 has a double helical groove 211, which consists of two helical grooves running in opposite directions and connected end-to-end. A movable block 22 is fitted onto the outer surface of the drive shaft 21. A first slider is rotatably mounted on the inner wall of the movable block 22, which is in contact with the outer wall of the drive shaft 21. The first slider slides along the inside of the double helical groove 211. When the drive shaft 21 rotates, the first slider, rotatably connected to the inner wall of the movable block 22, slides along one of the helical grooves. When it reaches the end of one helical groove, it enters the other helical groove and then slides along the other helical groove... The sliding inside the spiral groove allows the moving block 22 to move back and forth along the surface of the drive shaft 21. When a product is received, the molded product is transported to the lower surface of the cutting component 3. The cutting component 3 hooks the product up, and then the drive shaft 21 transports the fixed platform 23 to the bottom of the mold. At the same time, the drive shaft 21 drives the first rotating ring 25 to rotate, continuously pushing the fixed platform 23 upward. Due to gravity, the fixed platform 23 moves downward, thus creating a shaking effect. When the injection-molded product falls onto the surface of the fixed platform 23, the shaking ensures that the product can fall into the groove, achieving product positioning. Then, the laser cutting equipment 32 is used to perform subsequent processing on the product.

[0034] The outer wall of the drive shaft 21 is provided with a first slide rail 212, the outer wall of the drive shaft 21 is sleeved with a first rotating ring 25, and the inner wall of the first rotating ring 25 is provided with a second slider 251 that can slide along the first slide rail 212. The outer wall of the fixed platform 23 is provided with a notch 231, and a third slider 2311 is provided inside the notch 231. The outer wall of the first rotating ring 25 is provided with a buffer block 252 that can contact the third slider 2311.

[0035] The drive shaft 21 has a straight first slide rail 212 on its outer surface. Meanwhile, a first rotating ring 25 is rotatably mounted inside the moving block 22, and a second slider 251 that can slide along the inside of the first slide rail 212 is fixedly mounted on the inner wall of the first rotating ring 25. That is, when the drive shaft 21 drives the moving block 22 to move, it will cause the first rotating ring 25 to rotate, which will not affect the moving block 22 from moving back and forth along the surface of the drive shaft 21.

[0036] The fixed platform 23 has a notch 231 near the first rotating ring 25. A third slider 2311 is fixedly installed on the inner wall of the notch 231. At the same time, multiple buffer blocks 252 are arranged in an array on the outer wall of the first rotating ring 25. The buffer block 252 is an arc block that rises continuously. When the first rotating ring 25 rotates, the buffer block 252 starts to push the third slider 2311, causing the fixed platform 23 to move upward. Then, it moves downward by gravity. The advantage of this design is that when the injection-molded product falls into the groove formed by the abutment rod 24, the drive shaft 21 rotates, driving the moving block 22 downward towards the cutting component 3.

[0037] The moving blocks 22 on the outer walls of the two drive shafts 21 are connected by a tray 221; The outer wall of the tray 221 is provided with a first sliding rod 2211, and the outer wall of the fixed platform 23 is provided with a first sliding groove 232 for the first sliding rod 2211 to slide. The first elastic element 26 is provided inside the first sliding groove 232.

[0038] A tray 221 is installed between the moving blocks 22 on the outer walls of the two drive shafts 21. The tray 221 is fixedly connected to the two moving blocks 22. A first sliding rod 2211 is fixedly installed on the upper surface of the tray 221. A first sliding groove 232 is provided on the lower surface of the fixed platform 23. The first sliding rod 2211 slides along the inside of the first sliding groove 232. Simultaneously, one end of a first elastic element 26 is fixedly connected to the bottom of the first sliding groove 232, and the other end is fixedly connected to the first sliding rod 2211. The first elastic element 26 is a compression spring. When the first rotating ring 25 drives the fixed platform 23 to move upwards, the first sliding rod 2211 prevents the fixed platform 23 from falling and becoming misaligned, ensuring that the molded product will not be misaligned during transport by the drive shafts 21 and that the cutting position will not change.

[0039] The surface of the fixed platform 23 is provided with a first movable channel 233 for the sliding of the abutment rod 24. A sealing ring 27 is fixed inside the first movable channel 233. A limiting plate 241 is provided at one end of the abutment rod 24 near the inside of the first movable channel 233, and a ball head 242 is provided at the other end of the abutment rod 24. A second elastic element 28 is provided inside the first movable channel 233.

[0040] The design incorporates a first movable channel 233 formed by a downward indentation on the upper surface of the fixed platform. An abutment rod 24 is slidably installed inside the first movable channel 233. A sealing ring 27 is fixedly installed at one end of the first movable channel 233 near the outside. Simultaneously, a disc-shaped limiting plate 241 is fixedly installed at the lower end of the sealing ring 27. A second elastic element 28, which is a compression spring, is connected below the limiting plate 241. The downward movement of the abutment rod 24 compresses the second elastic element 28. A ball head 242 is rotatably installed at the other end of the abutment rod 24, with more than half of its outer surface inside the abutment rod 24, thus achieving a rotatable rolling connection. The purpose of this design is that when the product falls into the groove formed by the abutment rod 24 through the rolling ball head 242, the drive shaft 21 rotates, causing the first rotating ring 25 to rotate, the fixed platform 23 vibrates, and the product slides along the surface of the ball head 242. The rolling ball head 242 reduces the resistance to product sliding.

[0041] The end face of the fixed platform 23 is provided with a magnetic chuck 29, the outer wall of the magnetic chuck 29 is provided with a clearance groove 291, the magnetic chuck 29 is provided with a receiving groove 292, and a third elastic element 293 is provided between the magnetic chuck 29 and the fixed platform 23.

[0042] A magnetic chuck 29 is installed on the upper surface of the fixed platform 23. A clearance groove 291 is provided on the magnetic chuck 29 near the drag rod 33, allowing the edge of the product to be placed in the clearance groove 291. Afterwards, the drag rod 33 rotates inward and falls into the clearance groove 291, positioned below the product. Simultaneously, the magnetic chuck 29 is also fitted onto the outer surface of the outer ring of the contact rod 24. Figure 7 As shown; a third elastic element 293 is provided on the lower surface of the magnetic chuck 29. The third elastic element 293 is a compression spring. When the product falls into the groove formed by the abutment rod 24, the magnetic chuck 29 will also be pressed down. When the fixed platform 23 shakes up and down, it will also cause the magnetic chuck 29 to shake up and down. A receiving groove 292 that fits the product is carved in the middle of the magnetic chuck 29. At the same time, the receiving groove 292 passes through the magnetic chuck 29. The protruding part of the product falls into the groove formed by the abutment rod 24 through the receiving groove 292. At the same time, the shaking of the magnetic chuck 29 will also move the product into the receiving groove 292, ensuring that the protruding part can pass through the receiving groove 292. The shape of the receiving groove can also be designed according to the specific shape of the product.

[0043] The fixed frame 31 includes a magnetic surface 311.

[0044] A magnetic suction surface 311 is provided on the lower surface of the fixed frame 31, which can be used to attract the magnetic chuck 29 when powered on.

[0045] The advantage of this design is that when cutting the product, the mold is changed first. The injection-molded product is then fitted with a corresponding magnetic chuck 29, which is pressed onto the surface of the fixed platform 23. The contact rod 24 is then pressed downwards. After pressing, the pneumatic system is shut off to stabilize the internal air pressure of the fixed platform 23. The product is then moved below the cutting assembly 3 via the drive shaft 21. The laser cutting device 32 moves downwards via a telescopic motor. During this process, the drag rod 33 rotates inwards. The drag rod 33 has an L-shaped structure, with its short side hooking under the product. Power is then applied to lift the magnetic chuck 29, which, along with the magnetic surface 311, clamps the product. The laser cutting device 32 then begins operation, processing the product according to the pre-set program. Power is then disconnected from the magnetic surface 311, the magnetic chuck 29 falls, and the product is hooked by the drag rod 33. The laser cutting device 32 then moves upwards, the drag rod 33 moves outwards, and the product falls.

[0046] Preferably, the fixed frame 31 is fixed on the movable disk 142, which is driven by a motor and can move back and forth. When the movable disk 142 moves towards the moving module 141, the mold closes. At this time, the movable disk 142 drives the fixed frame 31 to move, and at the same time, the drive shaft 21 drives the fixed table 23 to move. That is, when the product is being injected, the cutting component 3 is located above the fixed table 23 and begins to perform the cutting operation. After the cutting is completed, the fixed table 23 returns to the bottom of the mold, and then the mold opens. Then, the product is blown into the upper surface of the fixed table 23 through the pneumatic hole 1411. During the process of opening the mold, the movable disk 142 moves to remove the processed product, and then the laser cutting equipment 32 moves up. The processed product falls down and then enters the next cycle, improving processing efficiency.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A customized cutting method based on color masterbatch plastic, characterized in that: include Flexible clamping positioning: Silicone flexible limiting blocks are arranged on the platform, the color masterbatch plastic parts are placed between the limiting blocks, the adjustable negative pressure pump is started, and the negative pressure value is adjusted according to the thickness of the plastic parts to achieve clamping without rigid damage. In the CNC system, a customized cutting path is drawn, and the cutting order is set to inner hole first and then outer contour. Then, based on the substrate type and thickness of the color masterbatch plastic part, the power of the laser, the cutting speed and the corresponding focal length parameters are matched. Select color masterbatch plastic waste of the same material and thickness as the part to be cut for trial cutting, and adjust the laser power or cutting speed according to the cut quality. Turn on the dust removal fan, execute the formal cutting program, and turn off the negative pressure pump to remove the workpiece after cutting is completed.

2. The customized cutting method based on masterbatch plastic as described in claim 1, characterized in that: For color masterbatch plastic parts with a thickness of 0.1–0.5 mm, the laser power is set to 30–50 W, the cutting speed to 80–120 mm / s, and the focal length to 12–15 mm; for color masterbatch plastic parts with a thickness of 0.5–2 mm, the laser power is set to 50–80 W, the cutting speed to 40–80 mm / s, and the focal length to 15–18 mm, supplemented by 0.1 MPa low-pressure air purging; for color masterbatch plastic parts with a thickness of 2–10 mm, the laser power is set to 80–150 W, the cutting speed to 10–40 mm / s, and the focal length to 18–25 mm, supplemented by 0.3 MPa high-pressure air purging. The air purging is used to disperse the molten plastic to reduce edge adhesion.

3. A customized cutting device based on color masterbatch plastic, characterized in that: Including the customized cutting method based on color masterbatch plastic as described in any one of claims 1 to 2; as well as, Injection molding equipment (1), and clamping assembly (2) disposed inside the injection molding equipment. The clamping assembly (2) includes a drive shaft (21) located inside the injection molding equipment (1), a moving block (22) located on the outer wall of the drive shaft (21), a fixed platform (23) located on the outer wall of the moving block (22), and a contact rod (24) slidably connected to the fixed platform (23). The contact rod (24) is arranged in an array of multiple units, and the fixed platform (23) is connected to an external air pressure system. The cutting assembly (3) includes a fixed frame (31) disposed inside the injection molding equipment (1), a laser cutting device (32) slidably connected to the fixed frame (31), a toothed rod (321) disposed on the outer wall of the laser cutting device (32), a rotatable drag rod (33) disposed inside the fixed frame (31), and a gear (34) on the outside of the drag rod (33) meshing with the toothed rod (321).

4. The customized cutting equipment based on masterbatch plastic as described in claim 3, characterized in that: The injection molding equipment (1) includes a feed tank (11), a drive device (12) connected to the feed tank (11), and an injection rod (13) connected to the drive device (12). The other end of the injection rod (13) is connected to an automatic equipment housing (14) for installing a clamping assembly (2) and a cutting assembly (3). The automatic equipment housing (14) is provided with a moving module (141) connected to the injection rod (13). The moving module (141) includes a pneumatic hole (1411) and a moving disk (142) for mold installation.

5. The customized cutting equipment based on masterbatch plastic as described in claim 4, characterized in that: Two drive shafts (21) are provided. The outer wall of the drive shaft (21) is provided with a double helical groove (211), and the inner wall of the moving block (22) is provided with a first slider that can slide along the inside of the double helical groove (211).

6. The customized cutting equipment based on masterbatch plastic as described in claim 5, characterized in that: The outer wall of the drive shaft (21) is provided with a first slide rail (212), the outer wall of the drive shaft (21) is sleeved with a first rotating ring (25), and the inner wall of the first rotating ring (25) is provided with a second slider (251) that can slide along the first slide rail (212). The outer wall of the fixed platform (23) is provided with a notch (231), and a third slider (2311) is provided inside the notch (231). The outer wall of the first rotating ring (25) is provided with a buffer block (252) that can contact the third slider (2311).

7. The customized cutting equipment based on masterbatch plastic as described in claim 6, characterized in that: The moving blocks (22) on the outer walls of the two drive shafts (21) are connected by a tray (221); The outer wall of the tray (221) is provided with a first slide bar (2211), and the outer wall of the fixed platform (23) is provided with a first slide groove (232) for the first slide bar (2211) to slide. The first slide groove (232) is provided with a first elastic element (26).

8. The customized cutting equipment based on masterbatch plastic as described in claim 7, characterized in that: The surface of the fixed platform (23) is provided with a first movable channel (233) for the sliding of the abutment rod (24). A sealing ring (27) is fixed inside the first movable channel (233). A limiting plate (241) is provided at one end of the abutment rod (24) near the inside of the first movable channel (233). A ball head (242) is provided at the other end of the abutment rod (24). A second elastic element (28) is provided inside the first movable channel (233).

9. The customized cutting equipment based on masterbatch plastic as described in claim 8, characterized in that: The fixed platform (23) has a magnetic chuck (29) on its end face. The outer wall of the magnetic chuck (29) has a clearance groove (291). The magnetic chuck (29) has a through-hole receiving groove (292). A third elastic element (293) is provided between the magnetic chuck (29) and the fixed platform (23).

10. The customized cutting equipment based on masterbatch plastic as described in claim 9, characterized in that: The fixed frame (31) includes a magnetic surface (311).

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