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30 results about "Bubble wrap" patented technology

Bubble wrap is a pliable transparent plastic material used for packing fragile items. Regularly spaced, protruding air-filled hemispheres (bubbles) provide cushioning for fragile items. "Bubble wrap" is a generic trademark owned by Sealed Air Corporation. In 1957 two inventors named Alfred Fielding and Marc Chavannes were attempting to create a three-dimensional plastic wallpaper. Although the idea was a failure, they found that what they did make could be used as packing material. Sealed Air Corp. was co-founded by Alfred Fielding in 1960.

Bubble wrap bag packing machine for home delivery

ActiveJP3254754UPackagingProcess engineeringHome deliveries
To provide a bubble buffer bag packing machine for home delivery, which realizes automation of packing work including putting articles into bubble buffer bags, and can improve production efficiency. The system includes a supply unit 1 that continuously supplies bubble cushioning bags, a transfer unit 2 that is located on one side of the supply unit and receives and opens the bubble cushioning bags, and a heat sealing unit 3 that seals the bubble cushioning bags. The cooperation of the supply unit, transfer unit, and heat sealing unit enables the continuous supply, transfer, opening, and sealing of bubble cushioning bags, significantly improving packaging production efficiency and the degree of automation.
Owner:蔡洋

Protective bubble wrap and repair tape for repairing protective bubble wrap

. Protective cushioning film as, in particular, thermally insulating, packaging protection with at least one layer of a bubble film (3) with bubbles (3.1), characterized by at least one layer of a reinforcing film (2) which has a reinforcing network (2.1) to increase the strength, wherein the bubble film (3) and the reinforcing film (2) are based on the same type of polymer, in particular polyethylene.
Owner:NEXUS CCS GMBH & CO KG

Bubble Wrap (Vertical Bicrystalline Type Pool Protective Cover)

ActiveCN310117067SStructural engineeringBubble wrap
1. Name of the product in this design: Bubble Wrap (Vertical Double Crystal Swimming Pool Protective Cover). 2. Purpose of this design: To cover the surface of a swimming pool. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:LANDY GUANGZHOU PLASTIC PROD

Adjustable cutting device for air bubble film processing

ActiveCN224275214URealize the height adjustment functionAdjust support tensionCleaning using toolsMetal working apparatusElectric machineScrew thread
The utility model relates to the technical field of air bubble film processing, and solves the problems that in the air bubble film conveying and cutting period, due to the fact that an air bubble film has certain plasticity and is loosened in the moving process, the cutting position deviates, cutting is not accurate, and meanwhile dust on the surface of the air bubble film influences the cutting quality. The adjustable cutting device for air bubble film processing comprises a processing table, side plates are arranged on the two sides of the processing table, rolling rods are arranged on one sides of the side plates, a moving roller is arranged on the other side of the top of the processing table, and a motor is arranged at one end of the processing table; the output end of the motor penetrates through the side plate on one side and is fixedly connected with one end of a moving roller, the other end of the moving roller is rotationally connected with the other side plate, a longitudinal sliding groove is formed in the surface of the side plate on one side, a sliding block is slidably connected into the sliding groove, a connecting block is arranged on the back face of the side plate and located below the sliding groove, and the top of the connecting block is rotationally connected with a threaded lead screw; the surface of the threaded lead screw is in threaded connection with a driving block which is fixedly connected with the back face of the sliding block.
Owner:HEFEI QINYI PACKAGING MATERIAL CO LTD

Cloth spreading machine vacuum box turning plate filter cloth device

PendingCN121872169AUnfolding thin materialsBubble wrap
The invention discloses a cloth spreading machine vacuum box turning plate filter cloth device which is additionally arranged in a vacuum box where linen enters, after the linen enters the vacuum box in a sleeved mode, a turning plate of the filter cloth device can fall down and is in an inclined posture, air enters through an opening in the back of a turning plate seat, meanwhile, a flow guide plate is arranged on the back of the turning plate seat, the air direction can be accurately positioned, and the air direction can be accurately adjusted. And the double layers of the rear half section of the quilt cover are fully shaken and bubbles wrapped in the double surfaces are discharged, so that the double surfaces of the rear half section of the quilt cover can be uniformly and flatly attached together.
Owner:SHANGHAI HANHONG PRECISION MACHINERY

Bubble cloth with one convex surface and one concave surface

ActiveCN223879956UWeft knittingYarnBubble wrap
The utility model discloses bubble cloth with one convex side and one concave side, which is characterized by comprising a base cloth layer and an elastic layer, a plurality of bubble generating areas are preset on the base cloth layer, the elastic layer comprises a plurality of elastic yarns, the elastic yarns are respectively interwoven and fixed on the base cloth layer, and the elastic yarns bypass the bubble generating areas; a bubble structure with one convex side and the other concave side is formed in the position, corresponding to each bubble generation area, on the base cloth layer. The bubble cloth is stable in three-dimensional shape, fine and uniform in touch feeling and good in air permeability and elastic supporting performance, the flexibility of the fabric is considered, and the application scene of the functional textile fabric is effectively expanded.
Owner:GUANGDONG JIAYUTONG TEXTILE TECHNOLOGY CO LTD

A 5G communication equipment packaging box

This utility model discloses a packaging box for 5G communication equipment, relating to the field of packaging box technology. It includes a packaging box body with an inner pressure box fixedly installed on top. A moisture-proof cardboard is installed on the top of the inner pressure box. In this utility model, when the communication equipment is being packaged, the packaging box body contains a custom-made inner shell of a certain size. The inner shell assembles the communication equipment, reducing packaging gaps and the amount of bubble wrap used. The inner shell uses bubble wrap inside the buckles to inflate and protect the four corners, preventing damage from corner collisions. Furthermore, the inner pressure box can press down on the top of the communication equipment inside the inner shell, preventing it from shaking during transportation and reducing the risk of collisions. The moisture-proof cardboard and pressure-resistant plate inside the inner pressure box provide pressure and moisture protection for the communication equipment inside the inner shell, increasing the safety of transportation.
Owner:SHENZHEN SHENGLIN PAPER PACKAGING CO LTD

Air bubble film cutting equipment

ActiveCN223589604UMetal working apparatusSlide plateBubble wrap
The utility model relates to the technical field of air bubble film production, and discloses air bubble film cutting equipment which comprises an operation table, a bottom plate is fixedly connected between two fixing plates, a switch is fixedly connected to one side of the upper end of the bottom plate, springs are fixedly connected to the two sides of the upper end of the bottom plate, and a pedal is rotationally connected to one side of the bottom plate. A material guide plate is fixedly connected to the upper end of the operation table, a through groove is formed in the material guide plate, first sliding blocks are fixedly connected to the upper ends of the two sliding plates, and baffles are fixedly connected to the positions, away from the upper ends, of the two first sliding blocks. According to the air bubble film cutting equipment, through the design of the pedal and the spring, a user can easily trigger cutting operation, when the pedal is stepped on, the spring is compressed, the switch is triggered through pressing of the pedal, when the pedal is released, the restoring force of the spring can enable the pedal to reset, and the switch is released, so that the operation is simpler, more convenient and faster, and the working efficiency is improved.
Owner:SHANGHAI APPLE ADDITIVE CO LTD

A bubble film high-speed online defect detection device and a method of using the same

This invention provides a high-speed online defect detection device for bubble wrap and its usage method, belonging to the field of defect detection technology. The high-speed online defect detection device for bubble wrap includes: a lower frame; a middle layer housing fixedly connected to the upper end of the lower frame; an upper frame fixedly connected to the upper end of the middle layer housing; and a transmission component installed within the lower and upper frames for transmitting the bubble wrap body. Employing an active critical pressure detection principle, it can not only identify penetrating defects such as bubble breakage and pores that are detectable by traditional backlighting methods, but also actively penetrate and detect "hidden defects" such as insufficient strength due to uneven thickness or material weakening, achieving a leap from single-form detection to comprehensive material performance detection.
Owner:SUZHOU DAXI PACKING TECH CO LTD

Pet Bed (half closed bubble wrap)

1. The name of the design product: pet nest (semi-closed bubble). 2. The use of the design product: for pet rest and play. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:HANGZHOU TIANYUAN PET PROD

Air bubble film packaging bag recycling and processing equipment

The utility model discloses air bubble film packaging bag recycling and processing equipment, which relates to the technical field of air bubble film recycling and processing and comprises a containing frame, draining holes are formed in the surface of the containing frame in an array shape, a hanging lug is arranged at the top of the containing frame, an air conveying pipeline is arranged in the containing frame, and concentration pipelines are arranged at the two ends of the air conveying pipeline. The surface of the gas pipeline is provided with exhaust nozzles, the surface of the concentration pipeline is provided with quick connectors, a bubble film is placed through the containing frame, the whole structure sinks into the cleaning pool and is connected with the gas pipeline through the quick connectors, and gas enters the concentration pipeline through the quick connectors and then is divided into the gas pipeline through the concentration pipeline. The air conveying pipeline is arranged in the containing frame and directly makes contact with the air bubble film, when air is exhausted along the exhaust nozzle on the surface of the air conveying pipeline, the air bubble film can be directly beaten, the air bubble film is gradually cleaned under the action of beating and soaking, air bubbles leaving the exhaust nozzle make direct contact with the air bubble film, the cleaning time of the air bubbles is shortened, and the machining process is optimized.
Owner:ANHUI HUIZHONG PACKAGING TECH CO LTD

Micro-bubble gas distribution device

The utility model discloses a microbubble gas distribution device, which relates to the technical field of microbubble gas distribution and comprises a fermentation tank, a sealing component, a motor and a stirring rod, the sealing component and the motor are arranged at the top of the fermentation tank, the stirring rod is arranged in the fermentation tank, an upper group of stirring blades and a lower group of stirring blades are arranged on the stirring rod, and a feed port and a discharge port are further arranged on the fermentation tank. A supporting disc is arranged at the bottom in the fermentation tank, membrane wires are arranged on the supporting disc, a supporting table is arranged on the inner wall of the fermentation tank, a supporting plate is arranged on the side, away from the inner wall of the fermentation tank, of the supporting table, an annular disc is arranged on the supporting plate, membrane wires are arranged on the supporting table and the annular disc, and a ventilation opening and an exhaust opening are further formed in the fermentation tank; according to the microbubble gas distribution device provided by the utility model, the supporting disc is arranged, the membrane wires are coiled on the supporting disc, the supporting table and the annular disc are arranged, and the membrane wires are arranged on the supporting table and the annular disc, so that comprehensive gas distribution at the bottom, the side wall and the middle of the fermentation tank is realized, the oxygen concentration in the fermentation tank is improved, and the fermentation quality is ensured.
Owner:SHANDONG JINHUI MEMBRANE TECH

A type of wear-resistant bubble wrap

ActiveCN224278273Uavoid punctureavoid damageGarmentsBagsPolyesterFiber
This application discloses a wear-resistant bubble bag, relating to the field of bubble bag technology. The bag body includes a bubble film layer, a fiber layer, and a wear-resistant layer. An anti-static component is disposed on the inner side of the wear-resistant layer. The anti-static component includes guide lines and a dispersion plate, both of which are bonded to the wear-resistant layer with adhesive. The bag body, from the outside in, consists of the wear-resistant layer, the fiber layer, and the bubble film layer. This application utilizes a polyethylene wear-resistant layer with high hardness to resist friction and impact during transportation, and waterproofing to isolate moisture. The polyester fiber layer, with its high strength and toughness, prevents the bag body from being punctured by sharp objects, enhancing stability. The polyurethane bubble film layer, with its high elasticity, tightly adheres to the item, improving packaging fit. Simultaneously, the silver-plated copper fiber guide lines and the "Z"-shaped connecting lines form a mesh structure, rapidly conducting and dispersing static electricity. The copper-zinc alloy dispersion plate further adsorbs and diffuses static electricity, preventing damage to the item from static electricity.
Owner:HEFEI BOCHUANG PACKAGING TECH CO LTD

Air bubble film inflating equipment

The utility model relates to the field of buffer air cushion inflation equipment, in particular to air bubble film inflation equipment which comprises a machine body, a material placing roller, an inflation heat-sealing assembly and a pressing assembly, the material placing roller is rotationally arranged on the machine body, a rotating piece for driving the material placing roller to rotate is arranged on the machine body, and an air bubble film material belt is wound on the material placing roller; the air inflation heat sealing assembly is used for conducting air inflation and heat sealing on the air bubble film material belt, the pressing assembly comprises a pressing plate arranged on the machine body in a sliding mode, a pressing roller parallel to the axis of the material containing roller is rotationally arranged on the pressing plate, and a pressure control piece is arranged on the machine body and used for controlling the pressure of the pressing roller on the air bubble film material belt. The air bubble film heat-sealing device has the effect of improving the heat-sealing quality of the air bubble film and the air pressure consistency in the air bubble film.
Owner:SUZHOU GUTEWEI PACKAGING TECH CO LTD

Bubble wrap (gourd-shaped pool cover)

ActiveCN310117065SGourdStructural engineering
1. Name of the product in this design: Bubble Wrap (Gourd-shaped Pool Protective Cover). 2. Purpose of this design: To cover the surface of a swimming pool. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:LANDY GUANGZHOU PLASTIC PROD

A kraft paper composite bubble wrap tensioning device

This utility model discloses a kraft paper composite bubble wrap tensioning device, relating to the field of bubble wrap production technology. It includes a fixed frame with pressure rollers rotatably connected to both ends. An electric push rod is fixedly mounted on the fixed frame, and a tensioning frame is connected to the output end of the electric push rod. A tensioning roller is rotatably connected to the tensioning frame, and side rollers are connected to both sides of the tensioning roller via adjusting components. An arc-shaped plate is connected to the tensioning roller and the side rollers via a buffer mechanism, and a pressure sensor is mounted on the arc-shaped plate. A correction roller is connected to the tensioning frame via a correction mechanism. The pressure sensor of this utility model monitors the film tension distribution in real time and acquires tension data. When the system detects that the tension in the edge area is reduced by more than 25% compared to the center area, it quickly increases the driving torque of the side rollers through a torque compensation mechanism to achieve adaptive tension adjustment, strictly controlling the tension difference within ±5% to ensure uniform and stable film tension.
Owner:ZHENPING COUNTY XINHELI PAPER & PLASTIC PACKAGING PRODUCTS CO LTD

Air bubble film bag

ActiveCN223560276UBagsSacksStructural engineeringBubble wrap
The utility model relates to the technical field of packaging, and discloses an air bubble film bag which comprises a bag body, a plurality of large air bubbles are fixed on the periphery of the outer wall of the bag body, a plurality of small air bubbles are arranged among the large air bubbles, the small air bubbles are all fixedly connected with the bag body, the inner wall of the bag body is fixedly connected with a fixing ring, and the fixing ring is fixedly connected with the bag body. A first rubber strip is fixedly connected to the front side of the inner wall of the fixing ring, a second rubber strip is fixedly connected to the rear side of the inner wall of the fixing ring, a protruding strip is fixedly connected to the rear side of the outer wall of the first rubber strip, and a groove is formed in the front side of the outer wall of the second rubber strip. According to the air bubble film bag, sealing is achieved through clamping of the first rubber strip and the second rubber strip through the protruding strips and the grooves, objects are prevented from falling off from the bag when the air bubble film bag is bumped, the bag body is prevented from being excessively expanded or deformed in the side face direction through the pressing strips, the strength and stability of the side face of the bag body are improved through the pressing strips, and the objects can be stably stored in the air bubble film bag.
Owner:SHANGHAI APPLE ADDITIVE CO LTD

Air bubble film side edge flattening and rubberizing device

ActiveCN224276293USolve the problem of difficult pasting and manual operation requiredArticle deliveryAdhesiveBubble wrap
The utility model relates to the field of air bubble film processing equipment, and discloses an air bubble film side edge flattening and rubberizing device which comprises a rack, and an air bubble film is continuously conveyed in a roll material form; a flattening mechanism and a double-faced adhesive tape attaching mechanism are sequentially arranged on the rack in the conveying direction of the air bubble film material roll. The flattening mechanism is used for flattening air bubbles on the edges of the two sides of the air bubble film; comprising an upper pressing roller and a lower roller, the upper pressing roller is located on the upper side of an air bubble film conveying path, and the lower roller is located on the lower side of the air bubble film conveying path; the width of at least one of the upper pressing roller and the lower roller corresponds to the width of the side edge of the air bubble film; the upper pressing roller or / and the lower roller corresponding to the width of the side edge of the air bubble film are respectively arranged on the left side and the right side of an air bubble film conveying path; when the air bubble film passes, the distance between the upper pressing roller and the lower roller is smaller than the thickness of the air bubble film which does not pass through the flattening mechanism. By flattening the edge of the air bubble film and pasting the double faced adhesive tape, the air bubble film can be directly used as a protective film, and the application scene of the air bubble film is expanded.
Owner:RUIAN HUALIANG MASCH CO LTD

Shock absorbing crash cushion bubble wrap bag

ActiveCN224546924UBubble wrapCushion
The utility model relates to the technical field of packing bag, concretely relates to a shock attenuation anti -collision bubble packing bag, and technical scheme main points include main bag body, upper end cover and lower end cover, the main bag body is rectangular structure and surrounds the columnar structure that forms a circle to high -legged cup outer circle, is provided with the sticking part on two short sides of main bag body, and the sticking part includes the adhesive layer and release paper, and the release paper covers on the adhesive layer, is provided with the bubble part on main bag body, the bubble part is strip -shaped and has the bubble wall of arched cross section, the span in the arched cross section gradually becomes big from the direction of approaching the round center to the direction of far from the round center. The utility model discloses improve the bubble part through increasing the filling space, and the cover bubble wall structure modeling improves the shock attenuation anti -collision effect of packing.
Owner:TAIZHOU YIKAI PACKAGING CO LTD

A bubble wrap bag making machine

ActiveCN224276457UPrevent position deviation or even separation from the roller shaftEasy to recycleBag making operationsPaper-makingMachineBubble wrap
This utility model relates to the technical field of bubble wrap bag making machines, and discloses a bubble wrap bag making machine, including a manufacturing machine. The outer wall of the manufacturing machine has a discharge port, and a motor is fixedly mounted on the outer wall of the manufacturing machine. A double-headed screw is fixedly mounted on the output shaft of the motor. A through groove is opened at the top of the inner wall of the manufacturing machine, and a limiting groove is opened on the inner wall of the through groove. A roller is provided on the inner wall of the discharge port. This bubble wrap bag making machine, through the setting of the limiting shaft, roller, body, and bag making machine structure, allows the limiting shaft to limit the body during use, thereby preventing the body from shifting position or even detaching from the roller due to friction or external interference during roller rotation. This facilitates the user's direct recycling of the body from the discharge port, thereby improving the stability of the body during conveying and the user's product recycling efficiency.
Owner:NINGBO SHENGKANG PLASTIC IND CO LTD

Packaging bag (bubble cake)

ActiveCN309751572SProcess engineeringBubble wrap
1. Name of the product in this design: Packaging bag (bubble wrap). 2. Purpose of this design: Packaging bag for holding food. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:王新

Pencil case (silicone bubble wrap)

ActiveCN309576038SPolymer scienceBubble wrap
1. Name of the product in this design: Pencil Box (Silicone Bubble). 2. Purpose of this design: For storing items. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:JABIT

High-pressure resistant bubble wrap and its forming machine

This invention relates to high-pressure resistant bubble wrap and its forming machine. The bubble wrap forming machine includes a frame, a first bubble wrap supply system, a second bubble wrap supply system, a bubble absorption system, a rubber granule supply system, a cooling system, and a winding system. The rubber granule supply system and the bubble absorption system are arranged opposite to each other. The bubble absorption system has a plurality of absorption holes, and the rubber granule supply system has a plurality of rubber granule discharge holes. The granule discharge holes correspond to the depressions in the first film layer. The production process of the high-pressure resistant bubble wrap forming machine includes the following steps: the first bubble wrap supply system releases the first film layer, the second bubble wrap supply system releases the second film layer, the upper bubble absorption system absorbs dense depressions in the first film layer, and the rubber granule supply system sprinkles rubber granules into the corresponding depressions, thereby producing high-pressure resistant bubble wrap.
Owner:JINJIANG XIANGXING PAPER PLASTIC COLOR PRINTING CO LTD

A full-automatic injection molding intelligent forming device

The application discloses a kind of full-automatic injection intelligent forming device, it is related to injection molding device technical field.The base top is provided with vibration assembly, the connecting shaft outer wall is equipped with multiple cleaning plates, the connecting shaft one side is provided with cleaning assembly, the push plate one side is provided with adjusting assembly, the present application is rotated by rotating shaft and drives rotating seat rotation, further drive pull plate rotation, by pull plate and slide in fixed column and move column, further drive vibrating plate to the direction of moving die plate and fixed die plate movement, by the elastic potential energy of first spring release vibrating plate returns to its initial position, realize the interval knock of moving die plate and fixed die plate, the vibration produced by knock will be transmitted to melt in cavity, break the solidification layer shell of melt, release small bubble wrapped, small bubble is gathered into big bubble under the action of vibration, and it is removed by the aid of pressure difference to exhaust hole.
Owner:HANGZHOU KANGHONG IND & TRADE

Automatic edge folding and heat sealing integrated equipment for bubble bag and using method of automatic edge folding and heat sealing integrated equipment

The invention provides bubble bag automatic edge folding and heat sealing integrated equipment and a using method thereof, and belongs to the technical field of edge folding and heat sealing integrated equipment.The bubble bag automatic edge folding and heat sealing integrated equipment comprises an input mechanism; the edge folding mechanism comprises a supporting frame, a first supporting plate, a first U-shaped edge folding plate, a U-shaped built-in plate, a second U-shaped edge folding plate, a U-shaped connecting plate, a mounting hole, a heat sealing assembly, an air pump and a second support. An edge folding guide channel, a hot air pre-fixing unit and a final heat sealing mechanism are integrated on a continuous transmission line, so that an air bubble film can be immediately preheated and fixed without being transferred after edge folding and forming, and final heat sealing is completed; according to the seamless connection process, edgefold springback, displacement and deformation caused by semi-finished product carrying and waiting in a traditional process are fundamentally avoided, edgefold uniformity and edge sealing alignment accuracy are ensured, and the appearance quality and sealing reliability of products are remarkably improved.
Owner:SUZHOU DAXI PACKING TECH CO LTD

A rapid prototyping equipment for copper-clad laminate coating

This invention relates to a rapid prototyping equipment for copper-clad laminate (CCL) coating, comprising a board stacking conveyor and a bubble wrap conveyor. The discharge end of the board stacking conveyor is located beside the bubble wrap conveyor. A hot air device and a coating conveyor are located above the bubble wrap conveyor. Screw mechanisms are located on both sides of the bubble wrap conveyor, each with a longitudinal slide. Each longitudinal slide has two lifting cylinders. The piston rods of the four lifting cylinders are all fixedly connected to a lifting frame. The lifting frame is a hollow frame with multiple suction holes on its bottom wall. The lifting frame is connected to a suction pipe, and the suction holes and suction pipe communicate with the inner cavity of the lifting frame. The bubble wrap conveyor has a coating station, with two pressing cylinders fixedly connected to both sides of the coating station. This invention enables the coating to tightly wrap the "board stack," thereby preventing the CCLs from rubbing against each other and wearing down during subsequent transportation.
Owner:GUANGDONG YINGHUA ELECTRONIC MATERIALS CO LTD

Casting mold assembly of low-voltage mutual inductor

ActiveCN120962923ACasting moldInductor
The invention relates to the technical field of mutual inductor pouring molds, in particular to a low-voltage mutual inductor pouring mold assembly which comprises a mold body and a side mold, one side of the mold body is connected with the side mold in an inserted mode, and a cavity is formed in the mold body. By arranging the degassing vibration assembly, the connecting and separating assembly and other components, a transmission rod in the degassing vibration assembly drives a pushing block to move, and the pushing block is matched with a collision block on a movable block, so that the collision block forms elastic collision with a conduction block in a sliding groove through a spring to generate vibration; meanwhile, the connecting and separating assembly is matched with the vibration adjusting assembly to enable the side mold to vibrate synchronously, so that the vibration is transmitted to the mixture in the cavity, bubbles wrapped and air retained in the cavity are effectively loosened and driven, and then the device can vibrate and discharge the mixture and the bubbles at the corners of the cavity through multi-part vibration; and the problem that the production quality is affected by bubble residues of a traditional mold is solved.
Owner:JIANGSU SUYUAN JIERUI TECH CO LTD