Multi-layer composite paper pulp tray forming system

Abstract

The invention relates to a multi-layer composite paper pulp tray forming system which comprises a pulp storage tank and at least one pulp suction assembly, each pulp suction assembly comprises an overturning assembly installed in the pulp storage tank and two forming molds connected to the overturning assembly, the two forming molds are arranged in parallel and back to back, and the two forming molds are arranged on the pulp storage tank. The top of the slurry storage tank is fixedly connected with a first transverse linear driving mechanism, the driving end of the first transverse linear driving mechanism is in transmission connection with a transfer mold, and the transfer mold is vertically arranged in a sliding mode and matched with any forming mold. The device further comprises a drying conveying assembly, and the feeding end of the drying conveying assembly is close to the slurry storage tank and matched with the first transverse linear driving mechanism. By the adoption of the technical scheme, the technical problems that an existing paper pulp tray is poor in bearing capacity, and different requirements of the market for the tray bearing capacity are difficult to meet can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of pulp molding, and in particular to a multi-layer composite pulp tray molding system. Background Art

[0002] In pulp molding machines, there are mainly pulp scooping, flipping adsorption, and injection. Both the injection and scooping methods have the problem of uneven weight of the product due to uneven distribution of slurry during molding. The flipping molding method starts vacuuming and adsorption molding only after the molding mold is completely flipped and immersed in the pulp box, so the product molding is relatively uniform. However, the existing pulp molding machine has a relatively fixed slurry absorption thickness, and the slurry absorption is relatively thin, resulting in a weak load-bearing capacity of the pulp pallet after one-time molding and drying, which is difficult to meet the market's different requirements for pallet load-bearing capacity. Summary of the invention

[0003] The present invention aims to solve the technical problem that the existing pulp pallet has a weak load-bearing capacity and is difficult to meet the different market demands for the load-bearing capacity of the pallet, and provides a multi-layer composite pulp pallet forming system.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A multi-layer composite pulp tray forming system includes a pulp storage tank and at least one pulp suction assembly, each of the pulp suction assemblies includes a flip assembly installed in the pulp storage tank and two forming molds connected to the flip assembly, the two forming molds are arranged in parallel and back to back, a No. 1 horizontal linear drive mechanism is fixedly connected to the top of the pulp storage tank, the driving end of the No. 1 horizontal linear drive mechanism is transmission-connected to a transfer mold, the transfer mold is vertically slidably arranged, and is arranged in coordination with any of the forming molds; it also includes a drying and conveying assembly, the feeding end of the drying and conveying assembly is close to the pulp storage tank, and is arranged in coordination with the No. 1 horizontal linear drive mechanism.

[0006] The beneficial effects of the present invention are as follows: when in use, slurry is filled in the slurry storage tank, and one of the forming molds is rotated and faced downward by the flip assembly to enter the slurry and absorb the slurry to form a layer of wet film, and then one of the forming molds is rotated and faced upward by the flip assembly, and the transfer mold is moved vertically downward to close the mold with the one of the forming molds and demold, and at the same time, the other forming mold is rotated 180 degrees and faced downward to enter the slurry and absorb the slurry to form two layers of wet film, and this is repeated, and another slurry absorption molding operation can be carried out synchronously during demolding, thereby improving the technical problem of low efficiency of existing flip mold pulp molding, and at the same time, the turning The transfer mold moves downward in a cycle and closes the molds with different forming molds, so that one layer of wet film, two layers of wet film and more layers of wet film can be adsorbed, and demolding is completed to form a one-layer or multi-layer pulp pallet structure, so as to improve the technical problem that the existing pulp pallet has weak load-bearing capacity and is difficult to meet the market's different requirements for the load-bearing capacity of the pallet; after the closing of the mold is completed, the transfer mold is driven to move by the No. 1 horizontal linear drive mechanism, so that the transfer mold moves to the feed end of the drying conveying assembly, and the multi-layer pallet formed by the closing of the mold is transferred to the drying conveying assembly through the transfer mold, so that it can be dried by the drying conveying assembly, thereby completing the processing of the multi-layer pulp pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a left structural diagram of the multi-layer composite pulp tray forming system of the present invention;

[0008] Figure 2 It is a middle structural diagram of the multi-layer composite pulp tray forming system of the present invention;

[0009] Figure 3 It is a right structural diagram of the multi-layer composite pulp tray forming system of the present invention;

[0010] Figure 4 for Figure 3 A partial enlarged view of

[0011] Figure 5 for Figure 3 Enlarged view of part A in the middle;

[0012] Figure 6 for Figure 3 Enlarged view of middle part B;

[0013] Figure 7 for Figure 4 Enlarged view of the middle C part;

[0014] Figure 8 This is a structural diagram of the drying chamber of the present invention, mainly used to show the installation structure of the adapter assembly;

[0015] Fig. 9 for Figure 8 A partial enlarged view of

[0016] Fig.10 It is a partial structural diagram of the slurry storage tank of the present invention;

[0017] Fig.11 For the present invention Fig.10 A partial left view of

[0018] Fig.12 for Fig.11 A partial enlarged view of

[0019] Fig.13 This is a partial structural diagram of the present invention, mainly showing the connection structure between the flip assembly and the forming mold;

[0020] Fig.14 for Fig.13 A partial enlarged view of .

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Slurry storage tank; 11. Suspension platform;

[0023] 2. Turnover assembly; 21. Turnover shaft; 211. Airway; 212. Partition; 22. Turnover drive; 23. Lower vacuum pump; 231. No. 1 vacuum pump; 232. No. 1 three-way; 233. Air guide tube; 234. Control valve; 235. Air delivery assembly;

[0024] 3. Forming mold; 31. Forming template; 311. First air chamber; 32. Forming mold core;

[0025] 4. Transfer mold; 41. Transfer template; 411. Second air chamber; 42. Transfer mold core; 43. Transfer rack; 431. Fixed rack; 432. Sliding rack; 44. No. 1 vertical linear drive member; 45. Upper vacuum pump; 451. No. 2 vacuum pump; 452. Air pump; 453. Air pipe; 454. No. 2 tee; 455. Ventilation assembly;

[0026] 5. No. 1 horizontal linear drive mechanism;

[0027] 6. Drying conveyor line; 7. Drying room; 71. Drying box; 72. Forming and drying lower mold; 721. Forming lower mold frame; 722. Lower heating plate; 7221. Lower electric heating pipe; 7222. Lower temperature control sensor; 723. Forming lower mold core; 724. Lower blowing assembly; 73. Forming and drying upper mold; 731. Forming upper mold frame; 732. Second vertical linear drive member; 733. Upper heating plate; 7331. Upper electric heating pipe; 733 2. Upper temperature control sensor; 734. Forming upper mold core; 735. Upper air guide assembly; 74. Adapter assembly; 741. Base; 742. Bidirectional drive assembly; 743. Adapter plate; 744. Scraper; 745. Guide plate; 8. Pusher assembly; 81. Pusher rack; 82. No. 2 horizontal linear drive mechanism; 83. Pusher plate; 831. Force plate; 832. Force plate; 833. Center axis; 9. Receiving rack; 91. AGV trolley. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] Example 1

[0030] like Figure 1-Figure 3 A multi-layer composite pulp tray forming system includes a pulp storage tank 1 and at least one pulp suction assembly, each pulp suction assembly includes a flip assembly 2 installed in the pulp storage tank 1 and two forming molds 3 connected to the flip assembly 2, the two forming molds 3 are arranged in parallel and back to back, a first horizontal linear drive mechanism 5 is fixedly connected to the top of the pulp storage tank 1, a transfer mold 4 is fixedly connected to the driving end of the first horizontal linear drive mechanism 5, the transfer mold 4 is vertically slidably arranged, and is arranged in cooperation with any forming mold 3; it also includes a drying and conveying assembly, the feeding end of the drying and conveying assembly is close to the pulp storage tank 1, and is arranged in cooperation with the first horizontal linear drive mechanism 5.

[0031] The beneficial effects of this embodiment are as follows: when in use, slurry is filled in the slurry storage tank 1, and one of the forming molds 3 is rotated and directed downward by the flip assembly 2 to enter the slurry and absorb the slurry to form a layer of wet film, and then one of the forming molds 3 is rotated and directed upward by the flip assembly 2, and the transfer mold 4 is moved vertically downward to close the mold with the one of the forming molds 3 and demold, and at the same time, the other forming mold 3 is rotated 180 degrees and directed downward to enter the slurry and absorb the slurry to form two layers of wet film, and this is repeated, and another slurry absorption molding operation can be performed synchronously during demolding, thereby improving the technical problem of low efficiency of existing flip mold pulp molding, and at the same time , the transfer mold 4 moves downward in a cycle and closes the molds with different forming molds 3, so that one layer of wet film, two layers of wet film and more layers of wet film can be adsorbed, and demolding is completed to form a pulp tray structure with one or more layers, so as to improve the technical problem that the existing pulp tray has weak load-bearing capacity and is difficult to meet the market's different requirements for the load-bearing capacity of the tray; after the closing of the mold is completed, the transfer mold 4 is driven to move by the No. 1 horizontal linear drive mechanism 5, so that the transfer mold 4 moves to the feeding end of the drying and conveying assembly, and the multi-layer tray formed by the closing of the mold is transferred to the drying and conveying assembly through the transfer mold 4, so as to be dried by the drying and conveying assembly, thereby completing the processing of the multi-layer pulp tray.

[0032] The raw materials used for composite pulp molded pallets are recycled and reused waste paper shells, waste newspapers, discarded paper packaging materials, etc. These raw materials are put into a pulping machine for pulping. After 40 minutes of pulping, they are introduced into the pulp storage tank 1, and appropriate water is added to dilute the pulp storage tank 1 to a pulp concentration of 1.2-1.5% for standby use.

[0033] like Figure 9-13 On the basis of the above embodiment, the molding die 3 includes a molding template 31 and a molding core 32 fixedly connected to the molding template 31 , and both molding templates 31 are fixedly connected to the rotating part of the flip assembly 2 .

[0034] The transfer mold 4 includes a transfer template 41 and a transfer mold core 42 fixedly connected to the transfer template 41. The transfer template 41 is vertically slidably connected to the slurry storage tank 1, and the transfer mold core 42 is arranged in cooperation with the forming mold core 32 to form a tray forming cavity. In the figure, the forming mold core 32 is shown as a convex mold, and the transfer mold core 42 is shown as a concave mold.

[0035] The flip assembly 2 includes a flip shaft 21 with both ends rotatably connected to the slurry storage tank 1 and a flip driving member 22 with a driving end drivingly connected to the flip shaft 21. The flip driving member 22 is installed on the slurry storage tank 1. The two molding dies 3 are fixedly connected to the side wall of the flip shaft 21. The two molding dies 3 are fixedly connected to the flip shaft 21. When in use, the flip driving member 22 is started to drive the flip shaft 21 to rotate, thereby realizing the simultaneous rotation of the two molding dies 3.

[0036] Wherein, both ends of the turning shaft 21 are rotatably mounted on the slurry storage tank 1 through bearings.

[0037] The flip driving member 22 includes a driving motor and a transmission member connected to the output end of the driving motor. The transmission member includes a gear set, one of which is coaxially fixedly connected to the output shaft of the driving motor, and the other is coaxially fixedly connected to one end of the flip shaft 21.

[0038] Based on the above embodiment, the two molding molds 3 are both provided with a plurality of first air holes (not shown in the figure) for slurry suction and vacuum extraction; the flip assembly 2 also includes a lower vacuum extraction component 23, the lower vacuum extraction component 23 includes a No. 1 vacuum pump 231, a No. 1 tee 232 whose air inlet end is connected to the No. 1 vacuum pump 231, and two air guide pipes 233 whose one ends are respectively connected to the two air outlet ends of the No. 1 tee 232, and the other ends of the two air guide pipes 233 are respectively connected to the first air holes of the two molding molds 3. When the forming mold 3 is rotated and enters under the slurry layer to perform slurry suction operation through the rotation of the flip assembly 2, the No. 1 vacuum pump 231 can be started, and the No. 1 tee 232 and the corresponding air guide pipe 233 are connected to the No. 1 vacuum pump 231 to evacuate the forming mold 3, so that the slurry is adsorbed on the forming mold 3 under the action of pressure difference to form a uniform wet film; and before demolding through the closing action of the transfer mold 4, one of the forming molds 3 can be evacuated by the corresponding lower vacuum component 23 to perform vacuum dehydration to ensure the demolding effect. After the demolding is completed, the other forming mold 3 can be evacuated by the lower vacuum component 23 to complete the slurry suction operation.

[0039] As a specific solution of the above embodiment, the first air hole is opened on the forming mold core 32 of the forming mold 3. The forming template 31 of the forming mold 3 is opened with a first air chamber 311 connected to the corresponding first air hole to achieve gas conduction.

[0040] As a conventional technical means in this field, a steel wire mesh is pre-connected to the forming core 32 of the two forming molds 3 to ensure the rapid hanging of the film and complete the slurry absorption.

[0041] The lower vacuum pumping member 23 further includes two control valves 234 , which are respectively disposed at one end of the two air guide pipes 233 , so as to control the conduction of the corresponding air guide pipes 233 through the control valves 234 .

[0042] Both ends of the flip shaft 21 are open to form an air channel 211, and a partition 212 is arranged between the two air channels 211; the other ends of the two air guide tubes 233 are respectively connected to the two air channels 211, and the other ends of the two air guide tubes 233 are respectively rotatably connected to the two ends of the flip shaft 21; the lower vacuum component 23 also includes at least two groups of gas delivery components 235, wherein the air inlet ends of some of the gas delivery components 235 are connected to one of the air channels 211, and the air outlet ends are simultaneously connected to the first air holes of one of the molding molds 3, and the air inlet ends of the other gas delivery components 235 are connected to another air channel 211, and the air outlet ends are simultaneously connected to the first air holes of another molding mold 3. When the forming mold 3 is rotated and its orientation is changed by the flip assembly 2, the flip shaft 21 rotates relative to the air duct 233, and each gas supply component 235 rotates with the rotation of the flip shaft 21; when a certain forming mold 3 is evacuated by the No. 1 vacuum pump 231, the gas is introduced from the corresponding gas supply component 235 into the corresponding airway 211, and then introduced into the control valve 234 through the corresponding air duct 233, and finally discharged, thereby realizing vacuum slurry suction or vacuum dehydration.

[0043] As a specific solution of the above embodiment, the other ends of the two air guide tubes 233 are fixedly connected with rotating joints, so as to be rotatably connected to the two ends of the flip shaft 21 through the two rotating joints respectively, and the sealing of the connection is ensured by the rotating joints.

[0044] The gas outlet end of the gas delivery component 235 is connected to the first gas chamber 311 to achieve gas conduction.

[0045] Each molding die 3 is connected to at least two gas delivery components 235 via the first air chamber 311 to ensure uniform ventilation of each first air hole.

[0046] Each gas delivery component 235 includes a tee and a bronchial tube.

[0047] On the basis of the above-mentioned embodiment, it also includes a No. 1 vertical linear drive member 44 and a transfer frame 43. The No. 1 vertical linear drive member 44 is fixed to the slurry storage tank 1, and its driving end is located at the lower side of its mounting end, and the transfer frame 43 is fixedly connected to the driving end of the No. 1 vertical linear drive member 44, and the transfer mold 4 is connected to the transfer frame 43. When performing the demoulding operation, the No. 1 vertical linear drive member 44 is started, so that the driving end of the No. 1 vertical linear drive member 44 moves vertically downward, so that the transfer mold 4 moves downward, and closes the mold with the corresponding molding mold to complete the demoulding operation. Among them, the No. 1 vertical linear drive member 44 can be an electric cylinder, and it can also be a pneumatic cylinder. The transfer template 41 of the transfer mold 4 is connected to the driving end of the No. 1 vertical linear drive member 44.

[0048] The transfer frame 43 includes a fixed frame 431 fixedly connected to the slurry storage tank 1 and a sliding frame 432 whose upper end is vertically slidably connected to the lower end of the fixed frame 431. The sliding frame 432 is fixedly connected to the driving end of the first vertical linear driving member 44, and the lower end is connected to the transfer mold 4. The connection between the sliding frame 432 and the first vertical linear driving member 44 ensures the stable installation of the transfer mold 4, and during the vertical movement of the transfer mold 4, the sliding frame 432 slides vertically relative to the fixed frame 431.

[0049] On the basis of the above embodiment, the transfer mold 4 is provided with a plurality of second air holes for vacuuming; it also includes an upper vacuuming component 45 installed on the transfer frame 43, the upper vacuuming component 45 includes a No. 2 vacuum pump 451, an air pump 452, and an air supply pipe 453 whose air inlet end is connected to the No. 2 vacuum pump 451 or the air outlet end of the air pump 452, and the air outlet end of the air supply pipe 453 is simultaneously connected to each second air hole. When the transfer mold 4 moves vertically downward and is molded with a certain molding mold 3 to complete the demoulding operation, vacuuming can be performed by the No. 2 vacuum pump 451, so that the film on the upward molding mold 3 is adsorbed onto the transfer mold 4, and the demoulding operation is completed; after the demoulding is completed, the air pump 452 can be started to supply air to the air supply pipe 453 to remove the film on the transfer mold 4.

[0050] The second air hole is provided in the transfer mold core 42 of the transfer mold 4. The second vacuum pump 451 and the air pump 452 can be connected to the outlet end of the air delivery pipe 453 through the T-type three-way ball valve, so that the second vacuum pump 451 or the air pump 452 can be selected through the T-type three-way ball valve to achieve communication with the air delivery pipe 453.

[0051] The upper vacuuming component 45 also includes a No. 2 tee 454 whose air inlet end is connected to the air outlet end of the air delivery pipe 453 and two groups of ventilation components 455 whose air inlet ends are respectively connected to the two air outlet ends of the No. 2 tee 454, and the air outlet ends of the two ventilation components 455 are commonly connected to each second air hole. When vacuuming, the gas is introduced from each ventilation component 455 into the No. 2 tee 454, and then conducted toward the air delivery pipe 453. A plurality of second air chambers 411 are provided on the lower side of the transfer template 41 to realize the connection with each second air hole, and each second air chamber 411 is respectively connected to the air outlet end of the two ventilation components 455.

[0052] The air delivery pipe 453 is a hose structure, so that during the vertical movement of the transfer mold 4 , the air delivery pipe 453 of the hose structure undergoes adaptive deformation to ensure the communication between the air delivery pipe 453 and the transfer mold 4 .

[0053] Example 2

[0054] like Figure 1-Figure 3 Based on Example 1, the drying and conveying assembly includes a drying conveying line 6 whose feeding end is close to the slurry storage tank 1, a drying chamber 7 whose feeding port is connected to the discharging end of the drying conveying line 6, and a pushing component 8 installed at the discharging end of the drying conveying line 6.

[0055] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the multi-layer tray formed by the mold is transferred to the drying conveying assembly through the transfer mold 4, the drying conveying line 6 is started, and the multi-layer pulp tray is conveyed to its discharge end through the drying conveying line 6, and then the pulp tray conveyed to the discharge end of the drying conveying line 6 is pushed into the drying chamber 7 by the pushing assembly 8, and the pulp tray is dried by the drying chamber 7. After drying, the pulp tray is taken out from the discharge port of the drying chamber 7, thereby completing the molding operation of the multi-layer pulp tray.

[0056] Among them, the drying conveyor line 6 includes a conveyor frame, multiple conveyor rollers rotatably connected to the conveyor frame, multiple sprockets, chains meshed with the sprockets, and a motor whose driving end is coaxially fixedly connected to one of the conveyor rollers; wherein, at least two sprockets are coaxially fixedly connected to each conveyor roller, and the number and distribution spacing of the sprockets on each conveyor roller are the same; the number of chains is equal to the number of sprockets on a single conveyor roller, and is meshed with each sprocket one by one.

[0057] By starting the motor, multiple chains are driven to rotate simultaneously, thereby realizing the transmission of the pulp trays placed on the multiple chains.

[0058] Example 3

[0059] like Figures 3 to 8On the basis of Examples 1 and 2, the drying chamber 7 includes a drying box 71 whose feed port is connected to the discharge end of the drying conveyor line 6, a shaping and drying lower mold 72 installed at the bottom of the drying box 71, and a shaping and drying upper mold 73 installed vertically on the top of the drying box 71. The shaping and drying upper mold 73 is arranged directly above the shaping and drying lower mold 72.

[0060] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the pulp tray conveyed at the discharge end of the drying conveyor line 6 is pushed into the drying chamber 7 by the pushing assembly 8, the pulp tray is pushed onto the shaping and drying lower mold 72, and then the shaping and drying upper mold 73 is moved downward, so that the shaping and drying lower mold 72 and the shaping and drying upper mold 73 are combined, and the two sides of the pulp tray are dried at the same time to ensure the uniformity and quality of drying.

[0061] Example 4

[0062] like Figure 3 and Figure 5 On the basis of Examples 1-3, the shaping and drying lower mold 72 includes a shaping lower mold frame 721 fixedly connected to the drying box 71, a lower heating plate 722 fixedly connected to the upper side of the shaping lower mold frame 721, a shaping lower mold core 723 fixedly connected to the upper side of the lower heating plate 722, and a lower blowing assembly 724. The shaping lower mold core 723 is provided with a plurality of lower shaping air holes (not shown in the figure), and the lower blowing assembly 724 is connected to each lower shaping air hole at the same time.

[0063] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the pulp tray conveyed at the discharge end of the drying conveyor line 6 is pushed into the drying chamber 7 by the pushing assembly 8, the pulp tray is pushed onto the shaping lower mold core 723. During the drying process, the lower heating plate 722 dries the pulp tray to form a composite dry film. When removing the composite dry film formed by drying, it can be blown up by the lower blowing assembly 724 to facilitate quick removal.

[0064] Based on the above embodiment, a lower electric heating tube 7221 and a lower temperature control sensor 7222 are provided in the lower heating plate 722, so that heating is performed by the lower electric heating tube 7221, and the temperature is monitored in real time by the lower temperature control sensor 7222, thereby achieving drying temperature control.

[0065] The lower blowing assembly 724 includes a lower blowing air pump and a lower blowing air pipe group connected to the air outlet of the lower blowing air pump, and the lower blowing air pipe group is also connected to each lower shaping air hole to achieve blowing through the lower blowing air pump. Specifically, the lower blowing assembly 724 is fixedly connected to the shaping lower mold frame 721, and through holes are preset on the shaping lower mold frame 721 and the lower heating plate 722, and the through holes connect the lower blowing assembly 724 and each lower shaping air hole.

[0066] Example 5

[0067] like Figure 3 and Figure 6 On the basis of Examples 1-4, the shaping and drying upper mold 73 includes a shaping upper mold frame 731 vertically slidably connected to the top of the drying box 71, a second vertical linear driving member 732 fixedly connected to the top of the drying box 71, an upper heating plate 733 fixedly connected to the lower side of the shaping upper mold frame 731, a shaping upper mold core 734 fixedly connected to the lower side of the upper heating plate 733, and an upper air guide component 735. The shaping upper mold frame 731 is connected to the driving end of the second vertical linear driving member 732, the shaping upper mold core 734 is provided with a plurality of upper shaping air holes (not shown in the figure), and the upper air guide component 735 is simultaneously connected to each upper shaping air hole.

[0068] The beneficial effect of adopting the preferred scheme in the above embodiment is that, during drying, the second vertical linear drive member 732 can be used to move the shaping upper mold core 734 downward to close the mold with the shaping and drying lower mold 72. During the drying process, the pulp tray can be dried by the upper heating plate 733 to form a composite dry film. When the composite dry film formed by drying is removed, the upper shaping air holes can be evacuated through the upper air guide component 735, so that the composite dry film is blown onto the shaping upper mold core 734 and moves with the upward movement of the shaping upper mold core 734 so as to be separated from the shaping and drying lower mold 72. Afterwards, the upper shaping air holes can be ventilated through the upper air guide component 735 to blow down the composite dry film, thereby realizing the rapid removal of the composite dry film.

[0069] When the lower molding core 723 and the upper molding core 734 are separated, the composite dry film can be blown by the lower blowing component 724 , and the upper air guide component 735 simultaneously sucks air to blow and press the composite dry film onto the upper molding core 734 .

[0070] Based on the above embodiment, an upper electric heating tube 7331 and an upper temperature control sensor 7332 are provided in the upper heating plate 733 so that heating can be performed by the upper electric heating tube 7331 and the temperature can be monitored in real time by the upper temperature control sensor 7332, thereby achieving drying temperature control.

[0071] The upper air guide assembly 735 includes an upper blowing pump, an air suction pump, and an upper blowing pipe group. The air outlets of the upper blowing pump and the air suction pump are connected to the air inlet of the upper blowing pipe group, and the upper blowing pipe group is connected to each upper shaping air hole at the same time, so that the upper blowing pump can achieve blowing and the air suction pump can achieve suction. Specifically, the upper air guide assembly 735 is fixedly connected to the shaping upper mold frame 731, and through holes are preset on the shaping upper mold frame 731 and the upper heating plate 733, and the through holes connect the upper air guide assembly 735 and each upper shaping air hole.

[0072] Example 6

[0073] like Figure 3 and Figure 8 On the basis of Examples 1-5, the drying chamber 7 further includes an adapter assembly 74, which includes a base 741 installed at the bottom of the drying box 71, a bidirectional drive assembly 742 installed at the base 741, and two horizontally arranged adapter plates 743, the two adapter plates 743 are respectively connected to the two driving ends of the bidirectional drive assembly 742 by transmission, the height of the two adapter plates 743 is not higher than the height of the discharge end of the drying conveyor line 6, and is not lower than the height of the shaping and drying lower mold 72, the ends of the two adapter plates 743 that are away from each other are bent upward to form a scraper 744, and a conveying channel opening toward the drying conveyor line 6 is formed between the two scrapers 744.

[0074] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the pulp tray is transported to the discharge end of the drying conveyor line 6 by the pushing assembly 8, the two adapter plates 743 are first moved toward each other and closed in the middle by the two-way driving assembly 742, and then the pushing assembly 8 is started and the pulp tray is pushed into the drying chamber 7, and the pulp tray is pushed onto the two adapter plates 743. After that, the pushing assembly 8 returns to its position, and the two-way driving assembly 742 causes the two adapter plates 743 to move in the opposite direction and separate to both sides, and the pulp tray falls into the shaping and drying lower mold 72 for subsequent drying operations.

[0075] As another usage, after the pulp tray is pushed into the two adapter plates 743 by the pushing assembly 8, the two adapter plates 743 are closed so that the two scrapers 744 clamp the pulp tray.

[0076] Among them, as one of the parallel solutions of the above-mentioned embodiment, the bidirectional driving assembly 742 includes a receiving plate motor, a steering gear connected to the receiving plate motor, and a forward and reverse screw rod connected to the output end of the steering gear at the middle end, the two ends of the forward and reverse screw rod have opposite thread rotation directions, and the other ends of the two adapter plates 743 facing each other are respectively threadedly connected to the two ends of the forward and reverse screw rod. The receiving plate motor is started to drive the forward and reverse screw rod to rotate, thereby realizing the movement of the two adapter plates 743 towards or in the opposite direction.

[0077] As a second parallel solution of the above embodiment, the bidirectional driving component 742 can also be a bidirectional electric cylinder.

[0078] Example 7

[0079] like Figure 3 and Figure 8 On the basis of Examples 1-6, the height of the two adapter plates 743 is equal to the height of the discharge end of the drying conveyor line 6, and the ends of the two adapter plates 743 away from the drying conveyor line 6 both extend out of the drying box 71 and are both formed with guide plates 745.

[0080] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the two adapter plates 743 are closed toward the middle, the two adapter plates 743 form a transmission channel connected to the discharge end of the drying conveyor line 6. At this time, the pushing assembly 8 is started. When the pushing assembly 8 pushes the pulp tray at the discharge end of the drying conveyor line 6 forward, the pulp tray can simultaneously apply force to the previous pulp tray, so that the previous pulp tray is pushed and pushed out of the drying box 71 under the guidance of the guide plate 745 for removal.

[0081] The scraper 744 is also extended onto the guide plate 745 to form a limiting effect through the scraper 744 .

[0082] On the basis of the above embodiment, a material receiving rack 9 is arranged directly below the guide plate 745, so that when the two transfer plates 743 move in opposite directions and separate to both sides, the pallets on the guide plate 745 can fall onto the material receiving rack 9, thereby facilitating the batch receiving operation of the pallets through the material receiving rack 9.

[0083] The present invention is also provided with an AGV trolley 91 to transport overlapping and batched pallets.

[0084] Example 8

[0085] like Figure 3 , Figure 4 as well as Figure 7 On the basis of Examples 1-7, the pushing assembly 8 includes a pushing rack 81 fixedly connected to the discharge end of the drying conveyor line 6, a No. 2 horizontal linear driving mechanism 82 fixedly connected to the pushing rack 81, and a pushing plate 83 whose upper end is fixedly connected to the driving end of the No. 2 horizontal linear driving mechanism 82, the lower end of the pushing plate 83 is rotatably connected to its upper end, and the rotation plane is perpendicular to the driving direction of the No. 2 horizontal linear driving mechanism 82.

[0086] The beneficial effect of adopting the preferred scheme in the above embodiment is that the second horizontal linear drive mechanism 82 is started to push the pulp tray through the lower end of the push plate 83 so that the pulp tray is pushed into the drying chamber 7; when the pulp tray is transmitted to the drying conveyor line 6, the lower end of the push plate 83 can be rotated relative to the upper end to prevent the lower end of the push plate 83 from obstructing the movement of the pulp tray.

[0087] As a specific solution of the above embodiment, the second horizontal linear drive mechanism 82 can be an electric cylinder, a pneumatic cylinder, a screw rod and a sliding rod structure, etc.

[0088] Based on the above embodiment, the push plate 83 includes a force plate 831 whose upper end is fixedly connected to the driving end of the second horizontal linear driving mechanism 82, a force plate 832 whose upper end is rotatably connected to the lower end of the force plate 831, and a central shaft 833 fixedly connected to the lower end of the force plate 831. The upper end of the force plate 832 is rotatably connected to the force plate 831 through the central shaft 833. The lower end of the force plate 832 is used to push the tray.

[0089] When the pulp tray is transferred into the drying conveyor line 6, the force-applying plate 832 can be rotated relative to the force-bearing plate 831 to prevent the force-applying plate 832 from obstructing the movement of the pulp tray.

[0090] Example 9

[0091] like Figure 1 On the basis of embodiments 1-8, at least two slurry suction assemblies are provided and are arranged at intervals along the telescopic direction of the driving end of the first transverse linear driving mechanism 5.

[0092] The beneficial effect of adopting the preferred scheme in the above embodiment is that by setting up at least two slurry suction assemblies, at least four forming molds 3 that can cooperate with the transfer mold 4 can be formed, so as to process more layers of multi-layer pulp pallets. At the same time, by changing the local shapes of different forming molds 3, such as separately forming the pressure-bearing column feet of the pulp pallet, a composite pulp pallet can be formed, rather than just processing a single-layer or multi-layer pulp pallet, to meet the diverse needs of the market.

[0093] like Figure 1 There are two slurry suction assemblies, wherein the forming cores 32 of the two forming molds 3 of the first slurry suction assembly can be processed to form a tray with a layered structure under the action of the transfer core 42. The forming core 32 of the second slurry suction assembly can be processed to form only a pressure-bearing column foot under the action of the transfer core 42, and the pressure-bearing column foot is inserted into the inner leg of the tray with the layered structure to improve the structural strength.

[0094] Example 10

[0095] like Figure 1 On the basis of Examples 1-9, the upper end of the slurry storage tank 1 is fixedly connected to a suspension platform 11, which is horizontally placed just above the feeding end of the drying and conveying assembly, and a horizontal linear drive mechanism 5 is also fixedly connected to the suspension platform 11.

[0096] The beneficial effect of adopting the preferred scheme in the above embodiment is that by setting up the suspension platform 11 to form the installation base of the No. 1 horizontal linear drive mechanism 5, the transfer mold 4 can be moved to just above the feed end of the drying conveying assembly under the action of the No. 1 horizontal linear drive mechanism 5, and then under the action of the downward movement of the transfer mold 4, the formed multi-layer wet film is gently placed on the drying conveying assembly to prevent the multi-layer wet film from being damaged.

[0097] Based on the above embodiment, the first horizontal linear drive mechanism 5 includes a slide rail fixedly connected to the slurry storage tank 1 and the top of the suspension platform 11, a screw rod with two ends respectively connected to the slurry storage tank 1 and the top of the suspension platform 11, and a motor with an output shaft coaxially fixedly connected to one end of the screw rod. The fixed frame 431 of the transfer mold 4 is slidably connected to the slide rail and is threadedly connected to the screw rod at the same time. By starting the motor, the screw rod is driven to rotate, thereby realizing the movement of the transfer mold 4.

[0098] The first horizontal linear drive mechanism 5 can also be an electric cylinder, a pneumatic cylinder, etc.

[0099] The specific principle of the multi-layer composite pulp tray forming system of the present invention is as follows:

[0100] a. Automatically inject the pulp of good concentration into the pulp storage tank 1 until the horizontal forming mold core 32 below is submerged in the slurry, and absorb the slurry for 20 seconds to form a wet film. During the slurry absorption process, start the No. 1 vacuum pump 231 to evacuate the forming mold 3, so that the slurry is adsorbed on the forming mold 3 under the action of pressure difference to form a uniform wet film;

[0101] b. Then, the assembly 2 is turned over to make one of the molding dies 3 rotate and face upward, and the transfer mold 4 is moved vertically downward to close the mold with the one of the molding dies 3 and demold. Before demolding, one of the molding dies 3 can be vacuumed by the corresponding lower vacuum pumping member 23 to perform vacuum dehydration. During demolding, the second vacuum pump 451 is vacuumed to make the film on the one of the molding dies 3 facing upward be adsorbed onto the transfer mold 4;

[0102] c. Similarly, the above method is used to complete the processing of a single-layer or multi-layer tray or a tray with a pressure-bearing column foot. In this process, the transfer mold 4 is moved to the top of different slurry suction assemblies through the first horizontal linear drive mechanism 5;

[0103] d. After the multi-layer composite wet film is formed, the transfer mold 4 is moved to the suspension platform 11 by the first transverse linear drive mechanism 5, so that the transfer mold 4 drives the composite wet film to the top of the feed end of the drying conveyor line 6;

[0104] e. The first vertical linear driving member 44 of the transfer mold 4 is started, and the transfer mold core 42 moves downward until the transfer mold core 42 is close to the feeding end of the drying conveyor line 6, and the air pump 452 is started to deliver air into the air delivery pipe 453 to remove the composite wet film on the transfer mold 4 and drop it onto the drying conveyor line 6;

[0105] f. The drying conveyor line 6 is started and the composite wet film is conveyed to its discharge end, and then stops. At this time, the bidirectional drive assembly 742 is started to move the two transfer plates 743 toward each other and close together in the middle;

[0106] g. Start the second horizontal linear driving mechanism 82, and the push plate 83 pushes the composite wet film onto the two adapter plates 743; the second horizontal linear driving mechanism 82 starts to reverse, and the push plate 83 returns to its original position;

[0107] h. Start the bidirectional driving assembly 742, so that the two adapter plates 743 move in opposite directions and separate to both sides, and the pulp tray falls into the shaping lower mold core 723 of the shaping and drying lower mold 72 for subsequent drying operations;

[0108] i. The second vertical linear drive member 732 is started, the upper mold core 734 moves downward and closes with the lower mold core 723, the composite wet film is pressed in the middle, and is heated and dried simultaneously by the upper heating plate 733 and the lower heating plate 722. The set heating temperature is 150°C, and the heating and pressurizing time is 2.5 minutes;

[0109] j. When the drying time is reached, the upper mold core 734 moves upward, and at the same time, the lower blowing assembly 724 blows air to blow and press the shaped and dried composite dry film onto the upper mold core 734. At the same time, air can be sucked synchronously through the upper air guide assembly 735 to improve the blowing effect;

[0110] k. Start the bidirectional driving assembly 742 to move the two adapter plates 743 toward each other and close together. The upper air guide assembly 735 is used to blow air synchronously to blow the dried and shaped dry film onto the two adapter plates 743.

[0111] 1. Start the second horizontal linear drive mechanism 82, and the push plate 83 pushes the next composite dry film to be dried and shaped onto the two adapter plates 743. When pushing, the composite dry film will keep pushing the composite dry film that has been dried and shaped until it is pushed onto the guide plate 745;

[0112] m. Start the bidirectional drive assembly 742, so that the two transfer plates 743 move in opposite directions and separate to both sides, and the composite dry film on the guide plate 745 falls onto the receiving rack 9, while the next composite dry film to be dried and shaped falls onto the shaping lower mold core 723 synchronously, so as to carry out the next drying operation;

[0113] n. When there are enough overlapping pallets on the receiving rack 9, they are transported away by the AGV trolley 91.

[0114] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0115] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0116] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0117] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0118] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0119] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A multi-layer composite pulp tray forming system, characterized in that: The invention comprises a slurry storage tank (1) and at least one slurry suction assembly, each of the slurry suction assemblies comprises a flip assembly (2) installed in the slurry storage tank (1) and two forming molds (3) connected to the flip assembly (2), the two forming molds (3) are arranged in parallel and opposite to each other, a first transverse linear drive mechanism (5) is fixedly connected to the top of the slurry storage tank (1), the driving end of the first transverse linear drive mechanism (5) is drivingly connected to a transfer mold (4), the transfer mold (4) is vertically slidably arranged and is arranged in cooperation with any of the forming molds (3); and the invention also comprises a drying and conveying assembly, the feeding end of the drying and conveying assembly is close to the slurry storage tank (1) and is arranged in cooperation with the first transverse linear drive mechanism (5).

2. A multi-layer composite pulp tray forming system according to claim 1, characterized in that: The drying conveying assembly comprises a drying conveying line (6) whose feeding end is close to the slurry storage tank (1), a drying chamber (7) whose feeding port is connected to the discharging end of the drying conveying line (6), and a pushing component (8) installed at the discharging end of the drying conveying line (6).

3. A multi-layer composite pulp tray forming system according to claim 2, characterized in that: The drying chamber (7) comprises a drying box (71) whose feeding port is connected to the discharging end of the drying conveyor line (6), a shaping and drying lower mold (72) installed at the bottom of the drying box (71), and a shaping and drying upper mold (73) installed vertically on the top of the drying box (71), and the shaping and drying upper mold (73) is arranged in a cooperative manner directly above the shaping and drying lower mold (72).

4. A multi-layer composite pulp tray forming system according to claim 3, characterized in that: The shaping and drying lower mold (72) comprises a shaping lower mold frame (721) fixedly connected to the drying box (71), a lower heating plate (722) fixedly connected to the upper side of the shaping lower mold frame (721), a shaping lower mold core (723) fixedly connected to the upper side of the lower heating plate (722), and a lower blowing assembly (724), wherein the shaping lower mold core (723) is provided with a plurality of lower shaping air holes, and the lower blowing assembly (724) is simultaneously connected to each of the lower shaping air holes.

5. A multi-layer composite pulp tray forming system according to claim 3, characterized in that: The shaping and drying upper mold (73) comprises a shaping upper mold frame (731) vertically slidably connected to the top of the drying box (71), a second vertical linear driving member (732) fixedly connected to the top of the drying box (71), an upper heating plate (733) fixedly connected to the lower side of the shaping upper mold frame (731), a shaping upper mold core (734) fixedly connected to the lower side of the upper heating plate (733), and an upper air guide component (735), wherein the shaping upper mold frame (731) is connected to the driving end of the second vertical linear driving member (732), the shaping upper mold core (734) is provided with a plurality of upper shaping air holes, and the upper air guide component (735) is simultaneously connected to each of the upper shaping air holes.

6. A multi-layer composite pulp tray forming system according to claim 3, characterized in that: The drying chamber (7) further comprises an adapter assembly (74), the adapter assembly (74) comprising a base (741) mounted on the bottom of the drying box (71), a bidirectional driving assembly (742) mounted on the base (741), and two adapter plates (743) both arranged horizontally, the two adapter plates (743) being respectively connected to the two driving ends of the bidirectional driving assembly (742) in a transmission manner, the height of the two adapter plates (743) being no higher than the height of the discharge end of the drying conveyor line (6) and no lower than the height of the shaping and drying lower mold (72), the ends of the two adapter plates (743) which are away from each other are both bent upward to form a scraper (744), and a conveying channel opening toward the drying conveyor line (6) is formed between the two scrapers (744).

7. A multi-layer composite pulp tray forming system according to claim 6, characterized in that: The height of the two adapter plates (743) is equal to the height of the discharge end of the drying conveyor line (6), and the ends of the two adapter plates (743) away from the drying conveyor line (6) both extend out of the drying box (71) and are both formed with guide plates (745).

8. The multi-layer composite pulp tray forming system according to claim 2, characterized in that: The pushing assembly (8) comprises a pushing frame (81) fixedly connected to the discharge end of the drying conveyor line (6), a second horizontal linear driving mechanism (82) fixedly connected to the pushing frame (81), and a pushing plate (83) whose upper end is fixedly connected to the driving end of the second horizontal linear driving mechanism (82), the lower end of the pushing plate (83) is rotatably connected to its upper end, and the rotation plane is perpendicular to the driving direction of the second horizontal linear driving mechanism (82).

9. A multi-layer composite pulp tray forming system according to any one of claims 1 to 8, characterized in that: At least two slurry suction assemblies are provided and are arranged at intervals along the telescopic direction of the driving end of the first transverse linear driving mechanism (5).

10. A multi-layer composite pulp tray forming system according to any one of claims 1 to 8, characterized in that: The upper end of the slurry storage tank (1) is fixedly connected to a suspension platform (11), the suspension platform (11) is horizontally placed just above the feeding end of the drying and conveying assembly, and the first horizontal linear drive mechanism (5) is also fixedly connected to the suspension platform (11).

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