CN116356612A - Paper pulp and plastic combined forming device and forming method thereof - Google Patents

Abstract

The invention relates to a paper pulp and plastic combined forming device and a forming method thereof, comprising a mixing mechanism, a cutting mechanism for cutting raw materials, a crushing mechanism for crushing the raw materials, a forming mechanism for extrusion forming of a mixture, a first moving device for moving plastic parts and a second moving device for moving the forming parts; the material mixing mechanism mixes the cut raw materials and the crushed raw materials into a mixture; the cutting mechanism and the crushing mechanism are communicated with the inlet of the mixing mechanism; the forming mechanism is communicated with the outlet of the mixing mechanism; the first moving device and the second moving device are respectively arranged at two sides of the forming mechanism. Solves the problems that the compression strength of the paper pulp packaging product in the prior proposal is lower, the paper pulp packaging product cannot be suitable for the packaging requirement of industrial products with heavier quality in industrial production, and the pollution to the environment is reduced under the condition of ensuring the compression strength of the packaging product.

Description

Paper pulp and plastic combined forming device and forming method thereof

Technical Field

The invention relates to the field of forming equipment, in particular to a pulp and plastic combined forming device and a forming method thereof.

Background

Pulp packaging products are environmental protection products made from recyclable plant fiber pulp or waste paper as a base material, which are widely used for replacing foam plastic products and for packaging lighter-weight products. For some packages of heavier quality products, one is to use a wooden packaging product that has high compressive strength, but can damage the environment during the process of cutting down the tree. A packaging product is made of plastic, has certain compressive strength and a certain damping effect, and has a protection effect on the product, but the plastic product can pollute the environment.

The pulp packaging product is not applied to packaging of products with heavier quality, namely, the pulp packaging product is produced by completely crushing paper products in the production process to prepare liquid pulp, and then the pulp packaging product is subjected to two forming processes, wherein most of water in the pulp is discharged to prepare wet blanks for the first time, and the wet blanks are heated to prepare dry blanks for the second time. The binder is also added during the pulping process, but the function of the binder is to ensure that the pulp can be pressed into the desired shape during the forming process, without increasing the compressive strength of the pulp packaging product.

Along with the increasing requirement on environmental protection in industrial production, the pulp packaging product has better environmental protection and no pollution to the environment, but has lower compressive strength, and cannot meet the packaging requirement of industrial products with heavier quality in industrial production. It becomes important to reduce the environmental pollution of the packaging product while ensuring the compressive strength of the packaging product.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a paper pulp and plastic combined forming device and a forming method thereof, so as to solve the problems that the paper pulp packaging product in the prior art has lower compressive strength, cannot be suitable for the packaging requirement of industrial products with heavier quality in industrial production, and reduces the environmental pollution under the condition of ensuring the compressive strength of the packaging product.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

a paper pulp and plastic combined forming device;

the device comprises a mixing mechanism, a cutting mechanism for cutting raw materials, a crushing mechanism for crushing the raw materials, a forming mechanism for extruding and forming a mixture, a first moving device for moving plastic parts and a second moving device for moving the forming parts; the material mixing mechanism mixes the cut raw materials and the crushed raw materials into a mixture; the cutting mechanism and the crushing mechanism are communicated with the inlet of the mixing mechanism; the forming mechanism is communicated with the outlet of the mixing mechanism; the first moving device and the second moving device are respectively arranged at two sides of the forming mechanism;

the blanking mechanism comprises a conveying device for conveying raw materials, a vibrating device for vibrating the raw materials, a rolling device for rolling the raw materials, a shearing device for shearing the raw materials and a material rack for blocking the raw materials; the vibrating devices are oppositely arranged at two sides of the conveying device; the material rack is connected with the vibrating end of the vibrating device; the rolling device is arranged between the conveying device and the shearing device in parallel.

The further technical scheme is as follows: the crushing mechanism comprises a crushing cylinder, a crushing frame rotatably arranged in the crushing cylinder and a first power device for driving the crushing frame to rotate; the first power device driving end is connected with the crushing frame.

The further technical scheme is as follows: the mixing mechanism comprises a mixing barrel, a mixing frame rotatably arranged in the mixing barrel, a first heating device for heating the mixture and a second power device for driving the mixing frame to rotate; the first heating device is arranged around the mixing cylinder; the driving end of the second power device is connected with the mixing frame.

The further technical scheme is as follows: the molding mechanism comprises a lower die, an upper die, a third power device for driving the upper die to move and a second heating device for heating the molded part; the second heating device is arranged in the upper die in a penetrating way; the upper die is arranged at the driving end of the third power device in a reciprocating sliding manner; a die position is arranged on the lower die; a module is arranged on the upper die; placing a plastic part and a mixture in the mold position; the modules are embedded in the mold locations and the mixture is covered in the mold locations.

The further technical scheme is as follows: the first moving device comprises a first mechanical arm, a first moving frame arranged at the moving end of the first mechanical arm, a first sucker for adsorbing plastic pieces and a lifting device for lifting the plastic pieces; the lifting device is rotatably arranged on the first movable frame around the first sucker.

The further technical scheme is as follows: the second moving device comprises a second mechanical arm, a second moving frame arranged at the moving end of the second mechanical arm, a second sucker for adsorbing the formed part and an air blowing device for cooling the formed part; the second suckers are arranged on the second movable frame in parallel; the blowing end of the blowing device faces the forming part.

A method for combining and forming paper pulp and plastic;

when the paper pulp and plastic combined forming device works, the paper pulp and plastic combined forming method comprises the following steps:

pulping: mixing and stirring the raw materials and pure water to break up the raw materials into paper pulp; adding a first reagent in the raw material scattering process;

and (3) blanking: sequentially dispersing the raw materials uniformly, staggering and shaping, and shearing the raw materials into strips;

mixing: placing the strip raw materials into paper pulp, heating and stirring to form a mixture; adding a second reagent in the stirring process;

and (3) feeding: placing the plastic part in a mold position; placing the mixture in a mold position;

and (3) forming: the module is arranged in the die position to vibrate; the module uniformly distributes the vibration dispersion of the mixture in the mold position; the module extrudes the mixture, and the mixture wraps the plastic piece; forming the mixture into a formed part after heating;

And (3) pruning: removing the molded part from the mold position, and blowing and cooling the molded part; cutting the edge of the molded part to form a finished product.

The further technical scheme is as follows: in the pulping step: the stirring speed of the raw materials and the pure water is as follows: 120 revolutions per minute; the stirring time of the raw materials and the pure water is as follows: 4 hours; the ratio of the first reagent to water is: 1:60-70; the adding time of the first reagent is 85-90% of the stirring time progress;

in the mixing step: the stirring temperature is as follows: 120-150 ℃; the water content of the mixture is as follows: 15-30%; the stirring speed of the mixture was: 30 revolutions per minute; the stirring time of the mixture was: 2 hours; the ratio of the second reagent to water is: 1:120-130; the adding time of the second reagent is 5-10% of the stirring time progress;

in the forming step: the heating temperature of the mixture is 320-350 ℃; the water content of the formed part is as follows: 6-8%.

Compared with the prior art, the invention has the following beneficial technical effects: (1) Cutting the raw materials into strips by a cutting mechanism, crushing the raw materials into paper pulp by a crushing mechanism, and fully mixing the strip-shaped raw materials and the paper pulp by a mixing mechanism under the condition of not damaging the strip-shaped raw materials; removing most of water in the mixture through a mixing mechanism, wherein the mixture is in a viscous state; placing the plastic part in a forming mechanism through a first moving device, uniformly distributing the mixture by vibration of the forming mechanism, and then heating and pressing the mixture into a formed part, so that the formed part is formed in one step to finish processing; finally, removing the molded part through a second moving device, and shearing the edge for trimming; (2) The blanking mechanism is used for vibrating and scattering raw materials in the conveying process of the conveying device through the vibrating device, so that the raw materials are uniformly distributed, the raw materials after rolling and shaping are uniformly staggered, and the shaping size is relatively fixed; (3) The compression resistance of the strip-shaped raw materials after molding is higher than that of the raw materials after molding by using paper pulp as the raw materials; rolling and staggering the raw materials by a rolling device, shaping, and shearing the raw materials into strips by a shearing device; the raw materials are staggered and then sheared, so that the sheared strip-shaped raw materials are longer in length, and the compressive strength of the formed part is improved; (4) The first heating device heats the mixture to control the water content of the mixture; in order to avoid the mixture from being stuck in the mixing cylinder, stirring the mixture by a stirring paddle, scraping the mixture on the inner surface of the mixing cylinder, and enabling the mixture near the first heating device to flow downwards towards the rack shaft to finish uniform heating of the mixture; the mixture flows along the stirring paddles, and the stirring paddles cannot break up strip-shaped raw materials in the mixture; (5) After plastic parts are placed in the mold position and the mixture is injected, the driving end of the third power device extends out, the mold is placed in the mold position, the mold contacts the mixture, the vibrator drives the upper mold to vibrate, the mold presses the mixture, and the mixture is uniformly distributed in the mold position; the vibrator stops driving the upper die to vibrate, the driving end of the third power device continues to extend, the second heating device heats the upper die and the module, the module compresses the mixture, the plastic part is pressed into the mixture, and the mixture is heated and molded to form a molded part; (6) After the first sucker adsorbs the middle part of the plastic part, the first mechanical arm moves the plastic part, and the branch part of the plastic part hangs down; the lifting rod is positioned between the branch parts of the adjacent plastic parts; the eighth power device drives the movable frame to rotate for a certain angle, the lifting rod is overlapped with the supporting part, and the seventh power device drives the lifting rod to swing outwards to support the supporting part of the plastic part; when the plastic piece moves into the die position, the seventh power device continuously drives the lifting rod to swing outwards, the branch part of the plastic piece slides along the lifting rod and is placed in the die position, at the moment, the first sucker stops adsorbing the middle part of the plastic piece, and the plastic piece is placed in the die position; the supporting parts of the plastic piece are supported by the lifting device, so that when the plastic piece is placed in the die position, the supporting parts of the plastic piece are placed in the die position in an extending state, the supporting property of the plastic piece on the forming piece is ensured, and the compressive strength of the forming piece is improved; (7) After the second sucker adsorbs the forming piece, the ninth power device drives the power rod and the power disc to rotate, and the power disc pushes the main board to be close to one side of the forming piece; the tenth power device drives the side rod to rotate, the side rod drives the auxiliary plate to swing outwards to be close to the other side of the forming piece, the cutting knife on the main plate and the cutting knife on the auxiliary plate are close to each other to complete cutting of the edge position of the forming piece, the edge position of the forming piece is cut into a plurality of sections of edge materials, and finishing of the edge of the forming piece is completed; (8) The mixture needs to be heated in the stirring process, so that the water content in the mixture is reduced; the stirring speed of the mixture is low, the strip-shaped raw materials are prevented from being broken in the stirring process, meanwhile, the first reagent exists in the mixture, the strip-shaped raw materials cannot be rapidly pulled due to the flowing of the mixture during stirring, the strip-shaped raw materials are ensured to be in strip shape through the first reagent and low-speed stirring, the strip-shaped raw materials in the molded part cannot be damaged, and the compressive strength of the molded part is ensured; (9) The third power device drives the module to press the mixture in the mold position, and the plastic piece is wrapped into the mixture; the module heats and extrudes the mixture to form, and the module is far away from the die position after the water in the forming part is evaporated; the consistency is increased due to the addition of the first reagent in the pulping step, the viscosity is increased due to the addition of the second reagent in the mixing step, and the water content of the mixture is controlled by heating the mixture; when the mixture is placed in the mold position, the water content of the mixture is lower, and the viscosity is higher; the water content of the molded article can be controlled to a low range by heating and extrusion molding the mixture.

Drawings

Fig. 1 is a top view of a pulp and plastic composite molding apparatus according to an embodiment of the present invention.

Fig. 2 shows a top view of a blanking mechanism according to an embodiment of the present invention.

Fig. 3 shows a front view structural diagram of the first roller shaft and the second roller shaft according to the embodiment of the present invention.

Fig. 4 shows a front view of a crushing mechanism according to an embodiment of the invention.

Fig. 5 shows a front view of a mixing mechanism according to an embodiment of the present invention.

Fig. 6 shows a top view of the structure at a in fig. 5.

Fig. 7 is a front view showing a structure of a molding mechanism according to an embodiment of the present invention.

Fig. 8 shows a top view of the structure at B in fig. 7.

Fig. 9 shows a top view of a loading device according to an embodiment of the present invention.

Fig. 10 is a front view of a first movable frame position according to an embodiment of the present invention.

Fig. 11 is a front view showing a structure of a second movable frame position according to an embodiment of the present invention.

Fig. 12 shows an enlarged structural view at C in fig. 11.

The reference numerals in the drawings: 1. a blanking mechanism; 11. a conveying device; 12. a vibration device; 13. a rolling device; 131. a first roller shaft; 132. a fourth power device; 133. a second roller shaft; 14. a shearing device; 141. a shear shaft; 142. slicing; 143. a fifth power unit; 15. a material rack; 2. a crushing mechanism; 21. a crushing cylinder; 22. a particle rack; 221. a frame body; 222. a blade; 23. a first power unit; 3. a mixing mechanism; 31. a mixing cylinder; 32. a mixing rack; 321. a support shaft; 322. stirring paddles; 323. a fixing member; 324. a first elastic means; 325. a notch; 33. a first heating device; 34. a second power device; 4. a forming mechanism; 41. a lower die; 411. guiding the bit; 42. an upper die; 421. a vibrator; 422. a guide rod; 43. a third power device; 431. a linear bearing; 432. a second elastic means; 44. a second heating device; 45. a mold position; 46. a module; 47. forming a bracket; 5. a first mobile device; 51. a first mechanical arm; 52. a first moving frame; 53. a first suction cup; 54. a lifting device; 541. a fixing frame; 542. a movable frame; 543. a lifting rod; 544. a seventh power plant; 545. an eighth power plant; 546. a movable ring; 547. a connecting rod; 6. a second mobile device; 61. a second mechanical arm; 62. a second moving frame; 63. a second suction cup; 64. an air blowing device; 7. a feeding device; 71. a storage cylinder; 72. an adsorption device; 73. a feeding cylinder; 74. a screw; 75. a sixth power plant; 76. an extension cylinder; 8. a moving mechanism; 9. a trimming device; 91. a main board; 92. a sub-plate; 93. a ninth power plant; 94. a tenth power unit; 95. a power lever; 96. a power disc; 97. a third elastic means; 98. a side bar; 99. and (5) a cutter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following more detailed description of the device according to the present invention is given with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the invention. For a better understanding of the invention with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or essential characteristics thereof.

Fig. 1 is a top view of a pulp and plastic composite molding apparatus according to an embodiment of the present invention. Fig. 2 shows a top view of a blanking mechanism according to an embodiment of the present invention. Fig. 3 shows a front view structural diagram of the first roller shaft and the second roller shaft according to the embodiment of the present invention. Fig. 4 shows a front view of a crushing mechanism according to an embodiment of the invention. Fig. 5 shows a front view of a mixing mechanism according to an embodiment of the present invention. Fig. 6 shows a top view of the structure at a in fig. 5. Fig. 7 is a front view showing a structure of a molding mechanism according to an embodiment of the present invention. Fig. 8 shows a top view of the structure at B in fig. 7. Fig. 9 shows a top view of a loading device according to an embodiment of the present invention. Fig. 10 is a front view of a first movable frame position according to an embodiment of the present invention. Fig. 11 is a front view showing a structure of a second movable frame position according to an embodiment of the present invention. Fig. 12 shows an enlarged structural view at C in fig. 11. The invention discloses a pulp and plastic combined forming device, which is combined with figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 11.

The pulp and plastic combined forming device comprises a mixing mechanism 3, a cutting mechanism 1 for cutting raw materials, a crushing mechanism 2 for crushing the raw materials, a forming mechanism 4 for extruding and forming a mixture, a first moving device 5 for moving plastic parts and a second moving device 6 for moving the formed parts. The mixing mechanism 3 mixes the cut raw materials and the crushed raw materials into a mixture. The cutting mechanism 1 and the crushing mechanism 2 are communicated with the inlet of the mixing mechanism 3. The forming mechanism 4 is communicated with the outlet of the mixing mechanism 3. The first moving means 5 and the second moving means 6 are provided on both sides of the forming mechanism 4, respectively.

Preferably, the raw material is waste paper. The raw materials are cut into strips by the blanking mechanism 1. The crushing mechanism 2 crushes the raw material into pulp. The mixing mechanism 3 mixes the paper strips and the paper pulp to form a mixture. The first moving means 5 move the plastic part into the forming means 4, after which the mixture flows into the forming means 4, the forming means 4 pressing the mixture into a formed part, the plastic part being placed in the formed part. The second moving means 6 move the molded part out of the molding mechanism 4. The first moving means 5 are located on one side of the forming mechanism 4 for moving the plastic part into the forming mechanism 4. The second moving means 6 are located on the other side of the forming mechanism 4 for moving the formed part out of the forming mechanism 4.

When the molding material is only pulp, the molding is extruded into a desired shape by the pulp. When the molded part is applied to the package of industrial products, the molded part is required to bear high pressure, and the molded part is broken. When the molding piece is made of paper strips and plastic pieces, the structural strength of the molding piece is improved. After the paper strip is extruded and formed, the strip raw materials are overlapped and staggered, and the strip raw materials are mutually pulled, so that the structural strength of the formed part is improved.

The plastic member includes a middle portion and a leg portion connected around the middle portion. The plastic part in the molding part is arranged in the mixture, and the middle part is positioned in the middle of the molding part. The branch extends to the edge position of the forming piece. When the molded part is stressed, the branch part pulls the mixture, so that the fracture of the molded part is reduced.

The raw materials are cut into strips through the blanking mechanism 1, the raw materials are crushed into paper pulp through the crushing mechanism 2, and the strip-shaped raw materials and the paper pulp are fully mixed under the condition that the strip-shaped raw materials are not damaged through the mixing mechanism 3. Most of the water content of the mixture is removed by the mixing mechanism 3, and the mixture is in a viscous state. The plastic part is placed in the forming mechanism 4 through the first moving device 5, the mixture is uniformly dispersed by the forming mechanism 4, and then the mixture is heated and pressed into the formed part, so that the formed part is formed by one-step forming. Finally, the molded part is removed by means of the second moving device 6 and the edge is sheared off for trimming.

The blanking mechanism 1 includes a conveying device 11 that conveys raw materials, a vibrating device 12 that vibrates the raw materials, a rolling device 13 that rolls the raw materials, a shearing device 14 that shears the raw materials, and a stock frame 15 that blocks the raw materials. The vibrating devices 12 are disposed opposite to each other on both sides of the conveying device 11. The material rack 15 is connected with the vibrating end of the vibrating device 12. The rolling means 13 are arranged side by side between the conveyor means 11 and the shearing means 14.

Preferably, the conveyor means 11 is a conveyor. The vibrating devices 12 are located on both sides of the moving direction of the raw material on the conveyor 11. The material rack 15 is located between the opposing vibrating devices 12. The two ends of the material rack 15 are connected with the vibrating ends of the vibrating device 12. The rack 15 extends upward in the direction of removal of the raw material. The vibration device 12 is fixed by a first mount. The first mounting frame is located on both sides of the conveyor 11. A gap exists between the lower end of the rack 15 and the upper surface of the conveyor 11.

The rolling device 13 is fixed by a second mounting frame. The rolling device 13 includes a fourth power device 132, a first roller shaft 131 provided in parallel obliquely rotatable on the second mounting frame, and a second roller shaft 133 provided in parallel horizontally rotatable on the second mounting frame. The first roller 131 and the second roller 133 are spaced apart from each other. The first roll shaft 131 is connected with the driving end of the fourth power device 132 through a coupling. The second roll shaft 133 is connected to the driving end of the fourth power device 132 through a coupling.

The shearing device 14 is fixed by a third mounting frame. The shearing device 14 includes a shearing shaft 141 rotatably provided on the third mounting frame, a slice 142 of sheared raw material, and a fifth power device 143 driving the shearing shaft 141 to rotate.

The slices 142 are juxtaposed on the shear axis 141. The shear shaft 141 is coupled to the drive end of the fifth power device 143 via a coupling.

The raw material is moved into the conveyor 11, and the conveyor 11 conveys the raw material, and after the raw material contacts the material frame 15, the raw material passes through a gap between the material frame 15 and the conveyor 11. The vibration device 12 drives the material frame 15 to vibrate, and the material frame 15 vibrates and disperses the raw materials so that the raw materials can be uniformly distributed on the conveying device 11.

When the raw materials are excessively stacked on the conveying device 11, after the raw materials contact the material frame 15, the material frame 15 blocks a part of the raw materials, the vibration device 12 drives the material frame 15 to vibrate, and the material frame 15 vibrates the raw materials, so that the raw materials uniformly contact the material frame 15. If the raw material gradually decreases, the raw material passes through the gap between the rack 15 and the conveyor 11. If the raw material is gradually increased, the raw material is uniformly deposited on the material rack 15, and then falls into the conveyor 11 from the upper end of the material rack 15.

After the raw materials are uniformly dispersed, the raw materials are rolled by the rolling device 13, and the fourth power device 132 drives the first roll shaft 131 and the second roll shaft 133 to rotate. The first roller 131 is inclined, and when the first roller 131 rolls the raw materials, if the raw materials are stacked, the rolling of the raw materials can be staggered. The first roller shaft 131 is horizontally arranged and compacts and shapes staggered raw materials.

The fifth power device 143 drives the shearing shaft 141 to rotate, the shearing shaft 141 drives the slice 142 to rotate to shear the raw material, and the slice 142 shears the raw material into strips.

The blanking mechanism 1 vibrates and breaks up raw materials in the conveying process of the conveying device 11 through the vibrating device 12, so that the raw materials are uniformly distributed, the raw materials after rolling and shaping are uniformly staggered, and the shaping size is relatively fixed.

If the raw materials are gathered, the rolling and staggering of the raw materials is insufficient, and the surface fluctuation of the shaped raw materials is large, so that the quality of shearing the raw materials into strips by the shearing device 14 is affected.

The compression resistance of the strip-shaped raw material after molding is higher than that of the raw material after molding by using paper pulp. The raw materials are rolled and staggered by a rolling device 13, then are shaped, and then are sheared into strips by a shearing device 14. The raw materials are staggered and then sheared, so that the sheared strip-shaped raw materials are longer in length, and the compressive strength of the formed part is improved.

The particle mechanism 2 comprises a particle drum 21, a particle frame 22 rotatably arranged in the particle drum 21 and a first power means 23 for driving the particle frame 22 in rotation. The first power device 23 is connected with the crushing frame 22 at the driving end.

The crushing cylinder 21 is arranged in the up-down direction. Preferably, the first power means 23 is an electric motor. The first power means 23 is arranged at the lower end of the particle drum 21. The driving end of the first power device 23 is connected to the lower end of the particle frame 22. The upper end of the crushing cylinder 21 is provided with a feeding hole. The lower end of the crushing cylinder 21 is provided with a liquid inlet. Raw materials enter the crushing cylinder 21 from a feeding hole. Pure water enters the crushing cylinder 21 through the liquid inlet.

The particle frame 22 includes a frame body 221 and blades 222 disposed around the frame body 221. The blades 222 are disposed at inclined intervals around the frame 221. The frame 221 extends outward from top to bottom.

The first power unit 23 drives the frame 221 and the blades 222 to rotate, and the blades 222 stir pure water and raw materials to form pulp in the process of stirring the raw materials.

The mixing mechanism 3 comprises a mixing barrel 31, a mixing frame 32 rotatably arranged in the mixing barrel 31, a first heating device 33 for heating the mixture and a second power device 34 for driving the mixing frame 32 to rotate. The first heating means 33 are arranged around the mixing drum 31. The driving end of the second power device 34 is connected with the mixing frame 32.

Strip-like raw material and pulp enter the mixing drum 31 from above the mixing drum 31. Preferably, the first heating device 33 is an electric heating tube. The first heating means 33 tube is arranged around the outer surface of the mixing drum 31. The mixing drum 31 is wrapped with an insulating layer. The heat insulating layer covers the first heating means 33.

Preferably, the second power device 34 is an electric motor. The second power device 34 is connected to the lower end of the mixing drum 31. The driving end of the second power device 34 is connected with the mixing rack 32.

The mixing frame 32 includes a frame shaft 321 rotatably provided in the mixing barrel 31, a stirring paddle 322 stirring the mixture, a fixing member 323 fixing the stirring paddle 322, and a first elastic device 324 elastically supporting the stirring paddle 322.

A slit 325 is made around the frame shaft 321. The cutout 325 extends into the frame shaft 321. Paddles 322 are slidably disposed on cutouts 325. The fixing member 323 is screwed into the slit 325 after passing through the stirring paddle 322 and the first elastic means 324. The first resilient means 324 abuts the paddle 322. The paddles 322 contact the inner surface of the mixing barrel 31. The area of the paddles 322 contacting the mixture gradually decreases from the outside to the inside. When the stirring paddle 322 rotates, the resistance of the outside of the stirring paddle 322 to contact the mixture is large, and the flow rate of the mixture outside the stirring paddle 322 is slow. The resistance to contact with the mixture is small inside the paddles 322 and the flow rate of the mixture is high inside the paddles 322. The mixture contacted by the stirring paddle 322 flows from outside to inside along the stirring paddle 322, and the mixture is uniformly dispersed in the mixing drum 31.

The first heating means 33 heats the mixture to control the water content of the mixture. To avoid the mixture from sticking to the mixing drum 31, the mixture is stirred by the stirring paddle 322 and scraped off from the inner surface of the mixing drum 31, and the mixture near the first heating device 33 flows in the direction of the rack shaft 321, thereby completing uniform heating of the mixture. The mixture flows along the stirring paddles 322, and the stirring paddles 322 do not break up the strip-like raw materials in the mixture. So that the mixture is in a viscous state and the state of the strip-shaped raw materials is maintained.

A feeding device 7 is arranged between the mixing mechanism 3 and the forming mechanism 4. The feeding device 7 includes a feed cylinder 73, a storage cylinder 71 storing a mixture, an adsorption device 72 adsorbing the mixture, a screw 74 transporting the mixture, a sixth power device 75 driving the screw 74 to rotate, and an extension cylinder 76 injecting the mixture. The inlet of the feeding cylinder 73 communicates with the storage cylinder 71. The outlet of the feed cylinder 73 communicates with an extension cylinder 76. The adsorption device 72 is provided on the feed cylinder 73. The storage cylinder 71 communicates with the mixing cylinder 31. Screw 74 is rotatably disposed within extension barrel 76. The screw 74 is connected to the drive end of the sixth power device 75. Preferably, the sixth power device 75 is an electric motor. The extension tube 76 extends in the direction of the molding mechanism 4. The extension tube 76 tapers at an end near the forming mechanism 4.

The valve at the outlet of the mixing drum 31 is opened and the mixture in the mixing drum 31 enters the storage drum 71. The adsorption device 72 adsorbs the inside of the feed cylinder 73 in a vacuum state, and the mixture in the storage cylinder 71 enters the feed cylinder 73. The sixth power means 75 drives the screw 74 in rotation, the screw 74 moving the mixture into the forming mechanism 4 through the extension cylinder 76.

The feeding device 7 is arranged on the moving mechanism 8. The driving end of the moving mechanism 8 is connected with the feeding cylinder 73. The moving mechanism 8 drives the feed cylinder 73 and the extension cylinder 76 toward or away from the forming mechanism 4. Preferably, the moving mechanism 8 is a moving module.

The molding mechanism 4 includes a lower die 41, an upper die 42, a third power device 43 that drives the upper die 42 to move, and a second heating device 44 that heats the molded article. The second heating means 44 is provided in the upper die 42. The upper die 42 is reciprocally slidably disposed at the driving end of the third power device 43. The lower die 41 is provided with a die position 45. The upper die 42 is provided with a die block 46. The plastic part and the mixture are placed in the mold position 45. The mold 46 is embedded in the mold 45 and the mixture is covered in the mold 45.

The forming mechanism 4 is mounted on a forming bracket 47. The lower die 41 is mounted below the molding bracket 47. The upper die 42 is mounted above the forming bracket 47. Preferably, the third power means 43 is a hydraulic cylinder. The third power device 43 is provided on the molding bracket 47 in the up-down direction. The lower end of the third power device 43 is the driving end of the third power device 43. The mold position 45 is opened on the upper surface of the lower mold 41. The die block 46 is disposed on the lower surface of the upper die 42. After the lower die 41 and the upper die 42 are clamped, the die block 46 is inserted into the die position 45. There is a gap space between the die 46 and the die site 45.

The drive end of the third power means 43 is provided with a linear bearing 431. The outer ring of the linear bearing 431 is connected to the upper die 42. The drive end of the third power means 43 is also provided with second resilient means 432. The second elastic means 432 elastically supports the upper die 42. The second elastic means 432 is provided in the up-down direction at the driving end of the third power means 43. The upper die 42 is provided with a vibrator 421. The vibrator 421 drives the upper die 42 to vibrate, and the upper die 42 slides up and down along the driving end of the third power device 43. Preferably, the second heating device 44 is an electric heating tube.

The upper die 42 is provided with a guide bar 422. The lower die 41 is provided with a guide bit 411. When the upper die 42 and the lower die 41 are clamped, the guide rod 422 is inserted into the guide bit 411.

After plastic parts are placed in the mold position 45 and the mixture is injected, the driving end of the third power device 43 extends out, the mold 46 is placed in the mold position 45, the mold 46 contacts the mixture, the vibrator 421 drives the upper mold 42 to vibrate, the mold 46 presses the mixture apart, and the mixture is uniformly distributed in the mold position 45. The vibrator 421 stops driving the upper die 42 to vibrate, the driving end of the third power device 43 continues to extend, the second heating device 44 heats the upper die 42 and the module 46, the module 46 compresses the mixture, the plastic part is pressed into the mixture, and the mixture is heated and molded to form a molded part.

The first moving device 5 comprises a first mechanical arm 51, a first moving frame 52 arranged at the moving end of the first mechanical arm 51, a first sucker 53 for sucking plastic pieces and a lifting device 54 for lifting the plastic pieces. The lifting device 54 is rotatably provided on the first moving frame 52 around the first suction cup 53.

The first suction cup 53 is connected to a suction source. The first suction cup 53 is provided in the first moving frame 52 in the up-down direction. The lower end of the first suction cup 53 sucks the middle portion of the plastic member. The lifting device 54 lifts the leg of the plastic part. When the first mechanical arm 51 moves the plastic part into the mold position 45, the first sucker 53 stops adsorbing the middle part of the plastic part, and the lifting device 54 lowers the branch part of the plastic part.

The lifter 54 includes a fixed frame 541 provided on the first movable frame 52, a movable frame 542 rotating around the first suction cup 53, a lifter 543 for lifting the plastic member, a seventh power device 544 for driving the lifter 543 to swing, and an eighth power device 545 for driving the movable frame 542 to rotate. The movable frame 542 is rotatably provided on the fixed frame 541. The lifting lever 543 is swingably provided on the movable frame 542.

Preferably, eighth power device 545 is an electric motor. The drive end of the eighth power device 545 is provided with a gear. The movable rack 542 is provided with a rack. The gear engages the rack. The gears are preferably bevel gears. The rack is provided with a conical tooth shape. Preferably, the seventh power device 544 is a cylinder. A movable ring 546 is movably disposed in the movable frame 542. The drive end of the seventh power device 544 is coupled to the movable ring 546. The movable ring 546 is provided with a connecting rod 547 in a swinging manner. The connecting rod 547 swings the connecting lifter 543. Preferably, the connecting rod 547 is L-shaped.

After the first suction cup 53 sucks the middle portion of the plastic part, the first mechanical arm 51 moves the plastic part, and the branch portion of the plastic part hangs down. The lifting rod 543 is located between the branches of adjacent plastic pieces. The eighth power device 545 drives the movable frame 542 to rotate a certain angle, the lifting rod 543 overlaps the supporting portion, and the seventh power device 544 drives the lifting rod 543 to swing outwards to support the supporting portion of the plastic piece. When the plastic part moves into the mold position 45, the seventh power device 544 continues to drive the lifting rod 543 to swing outwards, the supporting portion of the plastic part slides along the lifting rod 543 and is placed in the mold position 45, and at this time, the first suction cup 53 stops adsorbing the middle portion of the plastic part, and the plastic part is placed in the mold position 45. The supporting parts of the plastic piece are supported by the lifting device 54, so that when the plastic piece is placed in the mold position 45, the supporting parts of the plastic piece are placed in the mold position 45 in an extending state, the supporting property of the plastic piece on the molded piece is ensured, and the compressive strength of the molded piece is improved.

The second moving device 6 includes a second robot arm 61, a second moving frame 62 provided at a moving end of the second robot arm 61, a second suction cup 63 that sucks the molded article, and an air blowing device 64 that cools the molded article. The second suction cups 63 are juxtaposed on the second moving frame 62. The blowing device 64 has a blowing end directed toward the molding.

The second suction cup 63 is connected to a suction source. The second suction cup 63 is provided in the second moving frame 62 in the up-down direction. The second suction cup 63 sucks the middle position of the molded article. The blowing device 64 is connected to a blowing gas source. The blowing device 64 is provided on the second moving frame 62.

The second moving frame 62 is further provided with a trimming device 9 for trimming the edge of the molded part. The trimming device 9 includes a main plate 91 on one side of the shear molding, a sub-plate 92 on the other side of the shear molding, a ninth power device 93 driving the main plate 91, and a tenth power device 94 driving the sub-plate 92 to swing. The main plate 91 is slidably disposed on the second moving frame 62. The sub-plates 92 are provided on both sides of the main plate 91 to swing relatively.

The second moving frame 62 is rotatably provided with a power lever 95. The power lever 95 is provided with a power disc 96 eccentrically. The second moving frame 62 is provided with a third elastic means 97. The third elastic means 97 abuts against the main plate 91. The third elastic means 97 pushes the main plate 91 away from the molding. The power disc 96 abuts against the main plate 91. The power rod 95 is connected to the driving end of the ninth power device 93.

Side bars 98 are rotatably provided on both sides of the main plate 91. The sub-plate 92 is connected to a side bar 98. The side bar 98 is connected to the drive end of the tenth power device 94.

The main plate 91 and the sub plate 92 are respectively provided with a cutter 99 for cutting the edges of the molded parts. The cutters 99 are distributed along the edge of the profile.

After the second suction cup 63 sucks the molded article, the ninth power device 93 drives the power lever 95 and the power plate 96 to rotate, and the power plate 96 pushes the main plate 91 to be close to one side of the molded article. Tenth power device 94 drives side lever 98 to rotate, and side lever 98 drives the outward swing of subplate 92 and is close to the shaping piece opposite side, and cutter 99 and subplate 92 on the mainboard 91 are close to each other and accomplish the shearing to shaping piece edge position, and shaping piece edge position is sheared into a plurality of sections edge material, accomplishes the repairment to shaping piece edge.

After the cutting of the molded part is completed, the blowing device 64 continuously blows air to the molded part to blow off the residual edge material on the molded part.

Second embodiment: when the paper pulp and plastic combined forming device works, the paper pulp and plastic combined forming method comprises the following steps:

pulping: the raw materials and pure water are mixed and stirred to break up the raw materials into paper pulp. And adding a first reagent in the raw material scattering process.

In the pulping step: the stirring speed of the raw materials and the pure water is as follows: 120 rpm. The stirring time of the raw materials and the pure water is as follows: 4 hours. The ratio of the first reagent to water is: 1:60-70. The first reagent is added for 85-90% of the stirring time schedule.

The first reagent is: inorganic thickeners, cellulosic thickeners, polyacrylate thickeners, and associative polyurethane thickeners.

The raw materials and the pure water can be fully dispersed through the faster stirring speed and the longer stirring time, so that the raw materials and the pure water can be fully mixed. The first agent is a thickener, which increases the consistency of pure water. The first reagent is added when stirring to between 3.4 and 3.6 hours and the consistency of the pure water is increased by stirring for a certain time. The first reagent is added to the pure water in a relatively low proportion, and the mixture needs to be heated in a subsequent mixing step, so that the water content of the mixture is reduced, and the consistency of the mixture is further increased in the subsequent mixing step. To ensure that the consistency of the mixture is controlled to a reasonable extent, the ratio of the first reagent to water needs to be controlled during the pulping step.

And (3) blanking: sequentially dispersing the raw materials uniformly, staggering and shaping, and shearing the raw materials into strips.

The strip-shaped raw materials are uniformly dispersed, staggered and shaped and then sheared, so that the shearing length of the strip-shaped raw materials is longer, and the strip-shaped raw materials are dispersed and cannot be wound into clusters. The strip-shaped raw material can be uniformly scattered on the paper pulp.

Mixing: the strip-shaped raw materials are placed in paper pulp to be heated and stirred to form a mixture. The second reagent is added during stirring.

In the mixing step: the stirring temperature is as follows: 120-150 ℃. The water content of the mixture is as follows: 15-30%. The stirring speed of the mixture was: 30 revolutions per minute. The stirring time of the mixture was: 2 hours. The ratio of the second reagent to water is: 1:120-130. The second reagent is added for 5-10% of the stirring time schedule.

The second reagent is: a polyvinyl alcohol resin binder.

The mixture needs to be heated in the stirring process, so that the water content in the mixture is reduced. The stirring speed of the mixture is slower, the strip-shaped raw materials are prevented from being broken in the stirring process, meanwhile, the first reagent exists in the mixture, the strip-shaped raw materials cannot be rapidly pulled due to the fact that the mixture flows during stirring, the strip-shaped raw materials are guaranteed to be strip-shaped through the first reagent and low-speed stirring, the strip-shaped raw materials in the molded part cannot be damaged, and the compressive strength of the molded part is guaranteed.

And adding a second reagent when stirring to 0.1-0.2 hours, wherein the proportion of the second reagent added into the mixture is low, and the mixture needs to be heated in the mixing step, so that the water content of the mixture is reduced, and the viscosity of the mixture is further increased in the mixing step. To ensure that the viscosity of the mixture is controlled within a reasonable range, the ratio of the second reagent to water is controlled during stirring to 0.1-0.2 hours.

And (3) feeding: the plastic part is placed in the mold location 45. The mixture is then placed in mold position 45.

The plastic part is placed in the mold position 45 by the first moving means 5. The feeding device 7 is close to the die position 45 through the moving mechanism 8, and the feeding device 7 places the mixture in the die position 45.

The first suction cup 53 first sucks the middle part of the plastic part, then overlaps the lifting rod 543 with the supporting part of the plastic part by rotating the movable frame 542, and supports the supporting part of the plastic part by swinging the lifting rod 543 outwards. When the first mechanical arm 51 puts the plastic part into the mold position 45, the branch part of the plastic part is put in an extended state.

And (3) forming: the module 46 is placed in the mold position 45 to vibrate. The module 46 distributes the mixture in the mold location 45 uniformly within the mold location 45. The module 46 extrudes a mixture that encapsulates the plastic part. The mixture is shaped into a shaped part after being heated.

In the forming step: the mixture is heated at 320-350 ℃. The water content of the formed part is as follows: 6-8%.

The module 46 is first moved into the mold position 45 and the module 46 contacts the mixture. There is a spacing between the die 46 and the die site 45. Vibrator 421 drives module 46 into vibration, and module 46 distributes the mixture evenly within mold location 45.

The third power means 43 drives the module 46 to press down the mixture in the mold location 45 and the plastic part is wrapped into the mixture. The mixture is heated and extruded by the module 46, and after the water in the molded part evaporates, the module 46 is away from the die site 45. The addition of the first agent increases the consistency as a result of the pulping step, the addition of the second agent increases the viscosity as a result of the mixing step, and the heating of the mixture controls the water content of the mixture. When the mixture is placed in the mold 45, the water content of the mixture is low and the viscosity is high. The water content of the molded article can be controlled to a low range by heating and extrusion molding the mixture.

And (3) pruning: the molded part is removed from the mold position 45 and is cooled by blowing air. Cutting the edge of the molded part to form a finished product.

When the second moving means 6 moves the molded article out of the mold position 45, the blowing means 64 blows air to the molded article, cooling the molded article. Then cutting the edge of the formed part is completed by the mutual approaching of the cutting knife 99 on the main plate 91 and the cutting knife 99 on the auxiliary plate 92. The sheared edge material falls directly from the molding. The second moving means 6 move the molded article to the recovery area.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (8)

1. A pulp and plastic combined forming device is characterized in that: the device comprises a mixing mechanism (3), a cutting mechanism (1) for cutting raw materials, a crushing mechanism (2) for crushing the raw materials, a forming mechanism (4) for extruding and forming a mixture, a first moving device (5) for moving plastic parts and a second moving device (6) for moving the formed parts; the mixing mechanism (3) mixes the cut raw materials and the crushed raw materials into a mixture; the cutting mechanism (1) and the crushing mechanism (2) are communicated with an inlet of the mixing mechanism (3); the forming mechanism (4) is communicated with an outlet of the mixing mechanism (3); the first moving device (5) and the second moving device (6) are respectively arranged at two sides of the forming mechanism (4);

the blanking mechanism (1) comprises a conveying device (11) for conveying raw materials, a vibrating device (12) for vibrating the raw materials, a rolling device (13) for rolling the raw materials, a shearing device (14) for shearing the raw materials and a material rack (15) for blocking the raw materials; the vibrating devices (12) are oppositely arranged at two sides of the conveying device (11); the material rack (15) is connected with the vibrating end of the vibrating device (12); the rolling device (13) is arranged between the conveying device (11) and the shearing device (14) in parallel.

2. The pulp and plastic composite molding device as claimed in claim 1, wherein: the crushing mechanism (2) comprises a crushing cylinder (21), a crushing frame (22) rotatably arranged in the crushing cylinder (21) and a first power device (23) for driving the crushing frame (22) to rotate; the driving end of the first power device (23) is connected with the crushing frame (22).

3. The pulp and plastic composite molding device as claimed in claim 2, wherein: the mixing mechanism (3) comprises a mixing barrel (31), a mixing frame (32) rotatably arranged in the mixing barrel (31), a first heating device (33) for heating the mixture and a second power device (34) for driving the mixing frame (32) to rotate; the first heating device (33) is arranged around the mixing drum (31); the driving end of the second power device (34) is connected with the mixing frame (32).

4. The pulp and plastic composite molding device as claimed in claim 2, wherein: the molding mechanism (4) comprises a lower die (41), an upper die (42), a third power device (43) for driving the upper die (42) to move and a second heating device (44) for heating the molded part; the second heating device (44) is arranged in the upper die (42) in a penetrating way; the upper die (42) is arranged at the driving end of the third power device (43) in a reciprocating sliding manner; a die position (45) is formed on the lower die (41); a module (46) is arranged on the upper die (42); plastic parts and mixtures are placed in the mold positions (45); the module (46) is embedded in the mold location (45) and the mixture is covered in the mold location (45).

5. The pulp and plastic composite molding device as claimed in claim 2, wherein: the first moving device (5) comprises a first mechanical arm (51), a first moving frame (52) arranged at the moving end of the first mechanical arm (51), a first sucker (53) for sucking plastic pieces and a lifting device (54) for lifting the plastic pieces; the lifting device (54) is rotatably arranged on the first movable frame (52) around the first sucker (53).

6. The pulp and plastic composite molding device as claimed in claim 2, wherein: the second moving device (6) comprises a second mechanical arm (61), a second moving frame (62) arranged at the moving end of the second mechanical arm (61), a second sucker (63) for sucking the molded part and an air blowing device (64) for cooling the molded part; the second sucking discs (63) are arranged on the second movable frame (62) in parallel; the blowing device (64) has a blowing end facing the molded part.

7. A method for forming a pulp and plastic composite forming device according to claim 1, characterized in that: when the paper pulp and plastic combined forming device works, the paper pulp and plastic combined forming method comprises the following steps:

Pulping: mixing and stirring the raw materials and pure water to break up the raw materials into paper pulp; adding a first reagent in the raw material scattering process;

and (3) blanking: sequentially dispersing the raw materials uniformly, staggering and shaping, and shearing the raw materials into strips;

mixing: placing the strip raw materials into paper pulp, heating and stirring to form a mixture; adding a second reagent in the stirring process;

and (3) feeding: placing the plastic part in a mold position; placing the mixture in a mold position;

and (3) forming: the module is arranged in the die position to vibrate; the module uniformly distributes the vibration dispersion of the mixture in the mold position; the module extrudes the mixture, and the mixture wraps the plastic piece; forming the mixture into a formed part after heating;

and (3) pruning: removing the molded part from the mold position, and blowing and cooling the molded part; cutting the edge of the molded part to form a finished product.

8. The pulp and plastic combination molding method as claimed in claim 7, wherein: in the pulping step: the stirring speed of the raw materials and the pure water is as follows: 120 revolutions per minute; the stirring time of the raw materials and the pure water is as follows: 4 hours; the ratio of the first reagent to water is: 1:60-70; the adding time of the first reagent is 85-90% of the stirring time progress;

in the mixing step: the stirring temperature is as follows: 120-150 ℃; the water content of the mixture is as follows: 15-30%; the stirring speed of the mixture was: 30 revolutions per minute; the stirring time of the mixture was: 2 hours; the ratio of the second reagent to water is: 1:120-130; the adding time of the second reagent is 5-10% of the stirring time progress;

In the forming step: the heating temperature of the mixture is 320-350 ℃; the water content of the formed part is as follows: 6-8%.

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