225 results about "Plastic compounding" patented technology

The invention relates to the technical field of hollow part production, and discloses a metal-plastic composite car lamp frame shell integrated injection molding device which comprises an injection molding machine, a movable mold and a fixed mold are installed in the injection molding machine, an external manipulator and an external cooling module are installed outside the injection molding machine, and two fixing holes are symmetrically formed in the outer surface of the movable mold; an injection molding assembly is arranged in the injection molding machine, the injection molding assembly comprises not less than two metal pipes and not less than four extension pipes, and in the cooling process, the metal pipes are cooled from inside to outside based on the physical characteristics of the metal pipes; by means of the cooling mode, the middle of the molding material is cooled and shrunk firstly, the situation that the outer layer is solidified firstly due to the fact that cooling is conducted from the outside to the inside of the cavity traditionally is changed, when the internal material is cooled and shrunk, limitation of the solidified outer layer material is avoided, and therefore the problem that cavities are generated due to inconsistent shrinkage is effectively prevented.

An embodiment plastic composite material molded structure configured to be fastened to a correlated component by a fastening member is provided. The plastic composite material molded structure includes a molded main body including a composite material molding source molded into a predetermined shape by a press mold, a boss portion protruding from the molded main body, and an injection member made of a plastic material, the injection member being inserted and fixed in the boss portion by a mold pin and having an undercut disposed to be fastened to the fastening member.

A resealable dispensing element for a composite package is shown and described including a main body with a flange and a hollow cylindrical spout with at least one outer thread, an opening means guided movably in the spout for opening the composite package and a resealable screw cap, having an anchor ring. The screw cap serves to drive the opening means when the composite package is opened for the first time and wherein the screw cap and the anchor ring are connected by a plurality of breakable material bridges or at least by a material anchorage for connection to the main body. The main body on the spout has at least one circumferential web for securely holding the anchor ring and wherein the anchor ring has on its inside a circumferential retaining web shaped such that it corresponds with the circumferential web, as well as a method for mounting the screw cap for such a dispensing element. In order to reliably rule out tilting of the anchor ring during the mounting process of the dispensing element, it is provided that the main body has a plurality of vertical guide ribs arranged distributed over the circumference on the spout between the outer thread and the circumferential web for uniformly stretching the anchor ring when the screw cap is applied during the mounting of the dispensing element.

The utility model discloses a multi-layer weft reinforced steel skeleton plastic composite pipe, which relates to the field of steel-plastic composite pipes and comprises a pipe body with thermoplastic plastic as a base body, and an internal reinforced phase is arranged between the inner wall and the outer wall of the pipe body. The internal reinforcement phase comprises a warp layer and a weft layer, the warp layer is composed of a plurality of steel wires arranged in the axial direction of the pipe body, and the weft layer is composed of steel wires spirally wound in the circumferential direction of the pipe body; a plurality of warp steel wires and weft steel wires are spirally wound and welded to form a steel mesh framework; at least two layers of weft layers are continuously arranged, and the contacted weft layers are arranged in the same rotating direction. According to the utility model, the at least two weft layers are spirally wound on the warp layer, the contacted weft layers are arranged in the same rotating direction, and the outer weft steel wires are arranged on the inner weft steel wires in a contact manner, so that the ring stiffness of the pipe is improved, and high internal pressure resistance and external pressure resistance are provided.

The invention relates to the technical field of seismic exploration equipment, in particular to an optical fiber signal transmission seismic cable for seismic exploration. A power line, a twisted-pair shielding signal line and an optical fiber beam tube are wrapped outside the high-pressure plastic composite hose in a cabling mode, and the power line, the twisted-pair shielding signal line and the optical fiber beam tube jointly form a cable core structure. An outer layer non-woven fabric is wrapped outside the cable core structure, a polyurethane inner sheath is extruded outside the outer layer non-woven fabric, an armor layer is wrapped outside the polyurethane inner sheath, and a polymer polyethylene sheath is extruded outside the armor layer. According to the high-pressure plastic composite hose, through the design of the double reinforcing layers of the Kevlar aramid fibers and the polyester fibers, the strength and bursting pressure of the central air pipe are remarkably improved, and the high-pressure plastic composite hose can better adapt to the complex working environment; the cable core structure adopts composite optical fiber analog signal transmission to replace a traditional digital signal seismic cable, so that the quality and efficiency of signal transmission are improved; and the armor layer adopts a double-layer steel wire armor structure, so that the overall mechanical strength and tensile property of the cable are improved.

The invention discloses a high-pressure and high-ring-steel triangular steady-state steel framework plastic composite pipeline and a manufacturing system and method thereof, and relates to the technical field of steel framework plastic composite pipeline production, the high-pressure and high-ring-steel triangular steady-state steel framework plastic composite pipeline comprises a warp wire arrangement frame, and a weft wire storage rotating seat is arranged on one side of the warp wire arrangement frame; according to the full-automatic injection molding machine for the steel framework, preheating before injection molding of the steel framework is achieved, then the temperature difference between the steel framework and molten plastic is effectively reduced, the temperature difference between the steel framework and the molten plastic is effectively reduced, and the temperature difference between the steel framework and the molten plastic is effectively reduced; the situation that plastic on the outer side of the steel framework is contacted firstly during injection molding of the steel framework and is rapidly cooled and hardened to influence normal flowing of follow-up molten plastic is effectively prevented, and it is ensured that gaps on the outer side of the steel framework can be fully filled with the molten plastic in the injection molding process; the internal defects in the production process of the steel skeleton plastic composite pipe are effectively removed, and the quality of the steel skeleton plastic composite pipe product is further improved.

The utility model relates to the technical field of plastic composite pipes, and particularly discloses a plastic composite pipe processing and feeding device which comprises a placing table, a placing groove is formed in the upper end face of the placing table, a fixing plate connected with a device body in an abutting mode is arranged on the left side of the placing table, and a push disc is installed on the right side of the fixing plate. A positioning column is fixedly connected to the right side of the push disc, an inserting rod is fixedly connected to the right side of the positioning column, the plastic composite pipe is connected to the outer wall of the inserting rod in a sleeving mode and placed in the containing groove, the left side of the plastic composite pipe is connected to the outer wall of the positioning column in a sleeving mode and abuts against the push disc, and then the lining plate abuts against the inner wall of the plastic composite pipe; and then the inner wall and the outer wall of the plastic composite pipe abut against the inner wall of the limiting groove, then the plastic composite pipe can be fixed and limited, and therefore the situation that in the feeding process, the plastic composite pipe rolls to affect feeding is avoided.

The present invention discloses a degradable plastic, a container made from the plastic, and a preparation method thereof, belonging to the technical field of degradable plastic container processing. The preparation method of the degradable plastic comprises the following steps: mixing polybutylene terephthalate-adipate resin, starch, composite aerogel, modified corn straw fiber, a lubricant, and a plasticizer, stirring uniformly to obtain a mixture; and extruding and granulating the mixture to obtain a degradable plastic. The composite aerogel has gas barrier properties, improving the gas barrier properties of the polybutylene terephthalate-adipate plastic container. The composite aerogel also has high mechanical strength, preventing the leakage of modified ultrafine coal powder caused by the poor mechanical properties of the sericin aerogel, causing the modified ultrafine coal powder to migrate and precipitate in the plastic, affecting the degradation performance of the plastic.

The invention discloses easy-to-clean plastic composite material processing equipment and a processing method, and relates to the technical field of material processing, the easy-to-clean plastic composite material processing equipment comprises a tank body and a cooling tank, the tank body is internally provided with a forming device, an auxiliary device and a feeding device, when entering the tank body, a material is heated through a heating assembly, so that the fixed material is molten into a liquid state, and the cooling tank is used for cooling; materials are mixed through rotation of the stirring blades to promote transfer of heat and mass, so that the materials are fully melted by the heating assembly and enter the cylinder after being melted, at the moment, the materials in the tank body flow out more easily through knocking of the impact rod, the materials are prevented from being blocked in the tank body, and therefore the discharging efficiency is improved; the dredging blocks move to drive the thorn blocks to make contact with materials, the materials can be prevented from being accumulated or agglomerated at the discharging opening by dredging the communicating area of the tank body and the cylinder, and it is ensured that the materials can smoothly flow out of the tank body.

The invention discloses a production method of a high-wear-resistance metal / plastic composite harness wire for a high-speed jacquard loom, which comprises the following steps: S1, preparation of a stainless steel wire: selecting 316L type stainless steel for multi-pass wire drawing treatment to obtain a cylindrical wire rod with the diameter of 1-1.5 mm; carrying out annealing treatment on the wire rod; s2, stamping the wire rod: performing torsion releasing, straightening, cutting, middle flattening and punching treatment on the coiled wire rod to obtain a stainless steel part crude product with a heald eye in the middle; s3, treatment of the heald eye of the stainless steel part, wherein pretreatment, deburring and polishing are included; and S4, the stainless steel part and the plastic parts are compounded, specifically, the stainless steel part treated in the step S3 is cleaned and dried, and then the plastic parts are directly formed at the two ends of the stainless steel part in an injection molding mode. Through optimized material selection, precise machining and a unique surface treatment process, the produced composite harness wire has the advantages of no magnetism, smooth and wear-resistant harness eyes, firm combination of metal and plastic, long service life and the like, and is suitable for a high-speed operation condition.

The disclosed panels generally comprise a protective layer composed of a paper impregnated with a melamine resin. The protective layer may be incorporated into a panel comprising a rigid composite core, such as a plastic composite core or a mineral composite core. Disclosed are also methods for manufacturing the panels.

A motor vehicle lock, in particular a motor vehicle door lock. This has one or more high-strength structural components, for example a rotary latch and a pawl. The relevant structural component is made of plastic composite material consisting of fibers in a matrix of a plastic resin or has such a plastic composite material as an essential component. According to the invention, a forged fiber composite material is used as the plastic composite material.

The utility model relates to the technical field of plastic composite bag production, and discloses a winding device for a plastic composite bag production line, comprising a base and a winding drum, wherein a connecting seat and a fixing frame are fixedly installed on the outer surface of the base, a movable groove is opened on the outer surface of the connecting seat, the connecting seat is rotatably connected with a screw rod through the movable groove, a screw block is threadedly connected to the outer surface of the screw, and a bracket is fixedly installed on the outer surface of the screw block through the movable groove. The winding device of the plastic composite bag production line drives the screw block to move along the movable groove by controlling the screw rod to rotate, thereby shortening the distance between the bracket and the fixing frame, and then the outer surfaces of the first roller and the second roller are both engaged and connected with the connecting port, and the servo motor is controlled to operate to drive the winding drum to wind, thereby achieving the effect of improving the flexibility of the winding device when in use and facilitating the control and winding of winding drums of different sizes.

The utility model relates to the technical field of food plastic composite packaging bag production, in particular to a combined type cutting device which comprises an installation frame, rolling wheels are rotationally installed on the left side and the right side of the installation frame respectively, a machining table is installed in the installation frame, and a limiting frame is fixedly installed at the lower end of the machining table. And a saw blade is slidably installed at the side end of the limiting frame, a fixed cover plate is installed at the upper end of the installation frame, a connecting plate is slidably installed at the upper end of the fixed cover plate, and two clamping plates are fixedly installed at the lower end of the connecting plate. According to the improved combined cutting device, the mounting frame, the rolling wheels, the supporting frame, the machining table, the limiting frame, the saw blade, the fixing cover plate, the connecting plate, the clamping plate and the like are designed in a matched mode, so that the device is convenient to assemble and disassemble during use, and therefore replacement is convenient during follow-up overhauling; the service life of the device is prolonged, transportation can be facilitated, and the use efficiency of the device is improved.

The application relates to an insulation piercing connector and a forming process, and relates to the technical field of insulation piercing connectors. The process comprises the following steps: providing a blade belt and a gasket belt; synchronously feeding the blade belt and the gasket belt into a co-extrusion die head and compounding with molten plastic, continuously extruding a first plastic body, so that the blade belt is exposed on the blade edge side and the rest is embedded in the plastic body, and the gasket belt is completely embedded in the plastic body; cutting to a fixed length; stamping and forming piercing teeth and bolt holes; and covering exposed end faces with plastic elastic second plastic bodies at both ends. The product comprises the first plastic body, the embedded piercing blade, the completely embedded gasket and the second plastic body covering the end faces. The traditional discrete injection molding is reconstructed into a continuous co-extrusion integrated process, the production efficiency is doubled, the positioning precision of the embedded part is high, and the double end face sealing guarantees long-term electrical reliability.

The utility model relates to the technical field of flaring machines, and discloses a positioning guide structure of a plastic composite pipe flaring machine, which comprises a support table, the bottom of the support table is slidably connected with a base, the inside of the base is rotatably connected with a rotating shaft, and the surface of the rotating shaft is sleeved with two groups of pushing components. A positioning plate is fixedly connected to the top of the supporting table, two sets of sliding blocks are slidably connected to the interior of the positioning plate, an adjusting assembly is fixedly connected to one end of each sliding block, and the pushing assembly comprises a rotating rod connected to the surface of a rotating shaft in a sleeving mode. According to the positioning and guiding structure of the plastic composite pipe expanding machine, the pushing assembly is arranged, the effect of stably adjusting the height of the expanding machine is achieved, when different pipe diameters are replaced, the supporting height can be rapidly and synchronously adjusted to ensure accurate alignment of a pipe opening and a mold, the center line of a pipe is strictly aligned with the center line of the expanding mold, and the production efficiency is improved. Flaring deflection or uneven stress caused by height dislocation is avoided, and flaring size consistency and sealing performance are guaranteed.

An embodiment side structure of a vehicle body includes a side body, a surround panel coupled to the side body and having an opening, and a side outer panel including a plastic composite material coupled to the surround panel. In an embodiment, the surround panel includes a plurality of pillar reinforcement parts coupled to a plurality of pillars provided on the side body, a side sill reinforcement part coupled to a side sill provided on the side body and connected to the plurality of pillar reinforcement parts, and a rear wheel arch reinforcement part coupled to a rear wheel arch provided on the side body and connected to the plurality of pillar reinforcement parts.

The invention discloses a carbon dot-engineering plastic composite coating for optical temperature measurement and a preparation method thereof. The carbon dot-engineering plastic composite coating comprises the following components in parts by mass: 1-20 parts of carbon dots; and 1-3 parts of engineering plastic. The preparation method comprises the following steps: adding deionized water into a citric acid raw material and an arginine raw material to obtain a solution A, adding formic acid, adjusting the pH value of the solution, adding the solution into a reaction kettle, placing the reaction kettle in a drying oven, heating to obtain a solution B, performing centrifugal purification and drying to obtain an oily substance C, mixing the oily substance C with an engineering plastic solution to obtain a mixture D, pouring the mixture D into a spray cup, spraying the mixture D on a substrate, and performing drying to obtain a finished product. And putting into a drying oven for firing. The composite coating disclosed by the invention not only can be used as a luminescent material to be widely applied to the fields of frictional wear, non-contact temperature measurement, equipment surfaces and the like, but also can be used for measuring the temperature of the surface of mechanical equipment through the composite coating, so that the use efficiency of the equipment is improved, the service life of the equipment is prolonged, and the use safety is improved.

A method for producing a composite material of metal and plastic to form a plastic-metal hybrid component, in which macroscopic undercuts with microscopic undercuts having stochastically random roughness shapes and depths are introduced into the metal surface by means of short-pulse laser radiation to improve the adhesion between the metal surface and at least one plastic component, wherein the shapes and depths of the laser structuring of the metal surface are produced by changing the guidance and / or speed of the laser beam movement and simultaneously adjusting the power and / or the repetition rate of the short-pulse laser radiation, and the stochastically random roughness shapes are each at least partially filled with the at least one plastic component in an injection molding process such that the latter is gripped in the macroscopic and / or microscopic undercuts.wherein, following the roughening of the metal surface prior to the injection molding process of the at least one plastic component, at least the roughened surface of the metal is heated to a temperature which, in the processing range from room temperature to 100°C, is above the processing temperature of the at least one plastic component.

Method for processing and assembling a fiber-plastic composite component (1, 1'), the method comprising the following steps: a provision step in which the fiber-plastic composite component (1, 1') is provided; a machining step in which a surface section (11, 11') of the component (1, 1'), which is pressed against a mounting surface of another body (2, 2') during intended assembly of the component, is machined in such a way that a roughness of the surface section (11, 11') is increased; and an assembly step in which the component (1, 1') is mounted by a screw or rivet acting immediately and directly on a plastic matrix of the component in such a way that the surface section (11, 11') is pressed by the screw or rivet onto a mounting surface of another body (2, 2').

The invention discloses a leakage repairing method for a steel skeleton plastic composite pipe. The leakage repairing method comprises the steps that firstly, a leakage point is primarily sealed through a plastic welding gun; step 2, filling a gap with a leaking stoppage agent; and step 3, glass fiber reinforced plastic resin mouth pasting enhanced protection. The defects that an existing single leak repairing method is not thorough in sealing, insufficient in pressure resistance, poor in adhesive force and prone to being affected by the environment are overcome, and the leak repairing method for the steel framework plastic composite pipe is durable in sealing, high in pressure resistance, high in adhesive force and wide in environmental adaptability through the synergistic effect of primary sealing of the plastic welding gun, filling of the leak stopping agent and reinforcement of the glass fiber reinforced plastic resin.

The invention discloses an antibacterial and deodorant plastic composite material applied to pet carts and a preparation method of the antibacterial and deodorant plastic composite material. The composite material comprises a thermoplastic resin matrix, a composite inorganic antibacterial deodorant, a compatible dispersant, an antioxidant, a light stabilizer and a processing aid, the preparation method comprises the steps that silver-doped porous spherical bismuth vanadate powder / nano cerium oxide is synthesized to serve as an inorganic antibacterial deodorant, then the inorganic antibacterial deodorant and other components are subjected to melt blending, the porous structure of the inorganic antibacterial deodorant can efficiently adsorb peculiar smell molecules, silver ions are slowly released from deep pore channels, the material can still keep activity in a weak light environment, and the material has a good antibacterial effect. The BiVO4 / CeO2 composite photocatalyst has the advantages that the BiVO4 / CeO2 composite photocatalyst is prepared by the aid of the BiVO4 / CeO2 composite photocatalyst, accordingly, long-acting and lasting antibacterial effects can be realized, defect energy levels can be introduced by doping Ag in BiVO4 crystal lattices, heterojunction can be formed between Ag-doped BiVO4 and CeO2, effective spatial separation of photo-induced electrons and holes can be realized, sufficient active oxygen species can be generated, and efficient and broad-spectrum antibacterial effects can be realized.

The utility model provides a plastic composite film sampling and cutting device, and belongs to the technical field of cutting devices. The plastic composite film sampling and cutting device comprises a main body and a cutting mechanism, the main body comprises a shell, a fixing frame is fixedly mounted at the top end of the interior of the shell, the cutting mechanism comprises a mounting plate, the mounting plate is arranged at the bottom end of the interior of the shell, sliding plates are slidably mounted on the two sides of the mounting plate, and the sliding plates are arranged on the sliding plates. A pair of sliding plates is fixedly installed on the base, a cutting frame is fixedly installed at the bottom ends of the sliding plates, a cross rod is fixedly installed at the top ends of the sliding plates, a sleeve is installed in the center of the cross rod in an embedded mode, a threaded rod is connected to the interior of the sleeve in a threaded mode, and the top end of the threaded rod is rotationally connected with the bottom end of a fixing frame. The practicability of the sampling and cutting device for the plastic composite film can be effectively improved, and the practical value is high.

The utility model discloses aluminum-plastic panel production equipment with a residual defoaming powder eliminating structure. The aluminum-plastic panel production equipment comprises an aluminum-plastic compound machine, a plastic forming press, a plastic extruder and a defoaming pool, the defoaming tank is arranged between the plastic forming press and the plastic extruder; the defoaming tank is filled with water; and a material strip extruded by the plastic extruder passes through the water body of the defoaming tank and then is fed into the plastic forming press. According to the utility model, the plastic plate extruded by the plastic forming press is immersed in the water body of the defoaming tank, so that the unreacted quick lime and other defoaming agents fully react with the water under the controlled condition to generate calcium hydroxide, residual particles and reaction byproducts on the surface of the plastic plate are washed and removed after the plastic plate is washed, and the cleanliness of the composite interface of the plastic substrate and the aluminum plate is obviously improved; and after aluminum-plastic compounding, the interlayer bonding strength is improved, and the anti-stripping performance of the aluminum-plastic panel is effectively improved.

A combination printing process for producing a multi-component component comprising areas of both metal and plastic, wherein at least one metal is plasticized by means of a first extruder (5) and at least one thermoplastic material is plasticized by means of a second extruder (5) and selectively applied two-dimensionally in the x- and y-axis directions to a build surface (7) on a build platform (8) and cooled, after which the build platform (8) is lowered in the z-axis or the extruders (5) are raised in the z-axis and the steps are repeated until the component is completed, and the extruders (5) and the build platform (8) are arranged on a kinematic system (6), wherein, for the production of a positive-locking bond between the at least one metal and the at least one thermoplastic material, the at least one metal and the at least one thermoplastic material have similar melting and / or glass transition temperatures.

The RPET reprocessed plastic composite floor with the wear-resistant coating comprises a board body, the board body comprises an RPET base layer, a sound insulation layer is arranged at the bottom of the RPET base layer and comprises a mineral wool layer and a polyester fiber layer, a bottom layer is arranged at the bottom of the sound insulation layer and comprises a polyimide coating and a polyphenylene sulfide coating, and the wear-resistant coating is arranged on the surface of the board body. The top of the RPET substrate layer is provided with the glass fiber decorative layer, the top of the glass fiber decorative layer is provided with the surface layer, the surface layer comprises a polyether-ether-ketone coating and a polytetrafluoroethylene coating, and the polyester fiber layer is connected to the bottom of the RPET substrate layer through a water-based polymer isocyanate adhesive. The surface layer is arranged, the polytetrafluoroethylene coating contained in the surface layer can perform first-layer wear-resistant protection treatment on the top of the plate body, and the polyether-ether-ketone coating can perform second-layer wear-resistant protection treatment on the top of the plate body after the polytetrafluoroethylene coating is damaged, so that the overall wear resistance of the plate body is effectively improved.

The invention relates to the technical field of solid waste plastic recycling, in particular to cellulose / plastic composite aerogel and a preparation method thereof. The method comprises the following steps: (1) dissolving plastic in an organic solvent to obtain a homogeneous solution; (2) adding the homogeneous solution into cellulose aerogel, and then performing aging treatment to obtain an aged product; and (3) freezing the aging product to obtain the cellulose / plastic composite aerogel. According to the preparation method of the cellulose / plastic composite aerogel, the homogeneous solution containing the plastic is dropwise added into the cellulose aerogel, the toughness of the plastic can be utilized, the problem that traditional cellulose aerogel is poor in mechanical property can be solved, and therefore the cellulose / plastic composite aerogel which is high in mechanical strength, good in toughness and not prone to being broken can be obtained.

This is a non-kink IV device for placement on an arm of a patient called a Silent antecubital (AC). The non-kink IV device includes a small amount of a compressed material with a rounded bottom, at least one elastic band, and a stretchy net piece to encase the roll and bands around the arm of the patient. The device holds the IV against the arm so that arm movement of the patient is limited to avoid kinking of any tubing for the IV since the kinking can set off an alarm. Options for the compressed material are a compressed roll of gauze, an inflatable bladder, a soft rubber ball which can be a soft rubber made of a fully FDA compliant material such as rubber, silicone, various plastics, a composite material, and a fiber cloth.

A propeller assembly to facilitate the cleaning of aquaculture nets. The propeller assembly has a centrally disposed hub with a plurality of plastic composite blades extending outwardly to a perimeter ring. A plurality of triangular shaped rigid knuckles are coupled to the perimeter ring. A blade spacer is attached to a leading edge of each blade, the knuckle and blade spacer are constructed of a wear resistant non-ferrous material, ferrous material, or combination thereof. In operation, rotation of the blades provides thrust for positioning the knuckles against an aquaculture net, whereby the knuckles remove fouling from the aquaculture net by violently shaking the aquaculture net. The blade spacer positions the propeller assembly a predetermined distance from the aquaculture net to protect the leading edge by distance and / or use of the wear resistant material.

The utility model discloses a cutting device for a plastic composite coiled material, and relates to the technical field of plastic composite coiled material processing. The cutting device comprises a workbench. The workbench is provided with a guiding assembly, a conveying assembly, a cutting assembly, an adjusting assembly and a cutting assembly. The bottom end of the guide assembly and the top end of the workbench are fixedly mounted, so that the guide assembly guides and supports the composite coiled material; according to the composite material cutting device, the positions of the cutting assemblies are adjusted, so that the distance between the cutting assemblies is equal to the width needing to be cut, then the adjusting assembly is rotated to drive the cutting assembly fixed to one side to move downwards, the cutting end of the cutting assembly penetrates through a composite material, and then the width of the composite material can be adjusted; therefore, the cutting device for the plastic composite coiled material can cut composite materials with different widths and lengths, and the practicability of the cutting device for the plastic composite coiled material is improved.