A pulp molding drying and pressing line

Abstract

The present invention relates to the technical field of pulp molding production, and specifically discloses a pulp molding drying and pressing line, which includes a mold transfer manipulator, a drying and pressing group unit, a turning machine, a conveying track, and a moving trolley; the number of drying and pressing group units is several, and multiple drying and pressing group units are arranged in the front-back direction, and two adjacent drying and pressing group units can be detachably connected. A turning machine is installed at the rear side of the rearmost drying and pressing group unit, a mold transfer manipulator is installed at the front side of the foremost drying and pressing group unit, and a turning machine is installed at the front side of the mold transfer manipulator. The mold transfer manipulator, the drying and pressing group unit, and the turning machine are respectively provided with a conveying track, and a moving trolley is installed on the conveying track. This pulp molding drying and pressing line solves the problems in the prior art that the wet pressing process uses a single machine hot pressing to directly dry the product at one time with a heating mold, and the mold must be equipped with a moisture discharge net, which not only has low efficiency, but also the produced product has a net surface, affecting the quality of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of pulp molding production, and in particular to a pulp molding drying and pressing line. Background Art

[0002] Pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material and shapes paper products of a certain shape by a special mold on a molding machine. It has four major advantages: the raw material is waste paper, including board paper, waste carton paper, waste white edge paper, etc., with a wide source; its production process is completed by processes such as pulping, adsorption molding, and drying and shaping, which is harmless to the environment; it can be recycled; its volume is smaller than that of foamed plastics, can be overlapped, and is convenient for transportation.

[0003] The traditional wet pressing process uses single-machine hot pressing, directly uses a heating mold to dry the product at one time, and the mold must be equipped with a moisture exhaust net. Not only is the efficiency low, but the produced product has a mesh surface, which affects the quality of the product. Summary of the Invention

[0004] The purpose of the present invention is to provide a pulp molding drying and pressing line, which solves the problems in the prior art that the wet pressing process uses single-machine hot pressing to directly dry the product with a heating mold at one time, and the mold must be equipped with a moisture exhaust net, not only with low efficiency, but also the produced product has a mesh surface, which affects the quality of the product.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A pulp molding drying and pressing line includes a mold transfer manipulator, a drying and pressing unit group, a turning machine, a conveying track, and a moving trolley;

[0007] The number of the drying and pressing unit groups is several. Multiple groups of the drying and pressing unit groups are arranged in the front-back direction, and two adjacent drying and pressing unit groups can be detachably connected. A turning machine is installed on the rear side of the rearmost drying and pressing unit group, a mold transfer manipulator is installed on the front side of the foremost drying and pressing unit group, a turning machine is installed on the front side of the mold transfer manipulator, the mold transfer manipulator, the drying and pressing unit group, and the turning machine are respectively provided with the conveying track, and the conveying track is installed with the moving trolley;

[0008] The mold transfer manipulator includes a first frame body, a moving plate, a grasping component, a third air inlet hood, a first driving device, a second driving device, and a third driving device;

[0009] The moving plate is movably installed on the first frame body in the left-right direction, and the first driving device is used to drive the moving plate to move left and right;

[0010] The gripping assembly is vertically movably mounted on the moving plate. The gripping assembly opens and closes by moving vertically, and the second driving device is used to drive the gripping assembly to move vertically.

[0011] The third air inlet hood is vertically movably mounted on the moving plate. The third air inlet hood is located below the gripping assembly, and the third driving device is used to drive the third air inlet hood to move vertically.

[0012] The baking and pressing unit includes a second frame body, a baking and pressing die, a first heating plate, a second heating plate, a fourth driving device, a fifth driving device, a dehumidifying assembly, and a blowing hood.

[0013] The second frame body is provided with a conveying track. The moving trolley is movably mounted on the conveying track, and the baking and pressing die is mounted on the moving trolley.

[0014] The first heating plate is mounted on the second frame body. The first heating plate is located above the baking and pressing die, and the first heating plate can cover the top surface of the baking and pressing die.

[0015] The second heating plate is mounted on the second frame body. The second heating plate is located below the baking and pressing die, and the second heating plate can cover the bottom surface of the baking and pressing die, and the second heating plate is communicated with the baking and pressing die.

[0016] The fourth driving device is used to drive the second heating plate to move vertically. The fifth driving device is used to adjust the pressure in the baking and pressing die. The dehumidifying assembly is mounted on the second frame body, and the dehumidifying assembly is used to extract the moisture in the baking and pressing die.

[0017] The blowing hood is mounted on the second frame body. The blowing hood is directly opposite to the mold closing position of the baking and pressing die. The baking and pressing die is provided with a return spring, and the return spring is located between the upper die and the lower die of the baking and pressing die.

[0018] Further, the gripping assembly includes a first mounting seat, a cross beam, a swing rod, a clamping seat, a first slide rail, and a first slider.

[0019] The second driving device is mounted on the moving plate. The output end of the second driving device is mounted with the first mounting seat. The bottom surface of the first mounting seat is mounted with the cross beam. The clamping seat is horizontally movably mounted at the end of the bottom surface of the cross beam.

[0020] One end of the swing rod is hinged to the first mounting seat, and the other end of the swing rod is hinged to the clamping seat.

[0021] The first slide rail is installed at the end of the bottom surface of the cross beam, the first slider is slidably installed on the first slide rail, and the first slider is connected to the top surface of the clamping seat;

[0022] The clamping seat includes a hinge block, a connecting plate and an inclined block;

[0023] One end of the connecting plate is connected to the outside of the hinge block, the other end of the connecting plate is provided with the inclined block, and the inclined block is provided with an inclined surface, and the inclined surface faces the upper die of the hot pressing die.

[0024] Specifically, the mold moving manipulator further includes a guiding component, a second slide rail and a second slider, and the guiding component includes a mounting frame, a guide rod and a mounting plate;

[0025] One end of the guide rod is installed on the bottom surface of the mounting frame, the other end of the guide rod passes through the moving plate, and the other end of the guide rod is connected to the top surface of the mounting plate, the top surface of the mounting plate is installed on the bottom surface of the first mounting seat, and the bottom surface of the mounting plate is installed on the top surface of the cross beam;

[0026] The second slide rail is installed on the first frame body, the second slider is slidably installed on the second slide rail, and the top surface of the second slider is connected to the bottom surface of the moving plate.

[0027] Preferably, the third driving device is installed on the mounting frame, and the output end of the third driving device is connected to the third air inlet hood;

[0028] The top surface of the third air inlet hood is provided with a first valve, the inside of the third air inlet hood is provided with two air inlet cavities, the two air inlet cavities can be communicated with each other through the first valve, and first sealing rubber pads are installed around the bottom surfaces of the two air inlet cavities;

[0029] The first driving device includes a toothed rail, a first gear and a first motor, the toothed rail is installed on the first frame body, the first motor is installed on the moving plate, the output end of the first motor is installed with the first gear, and the first gear meshes with the toothed rail.

[0030] In some embodiments, the hot pressing unit further includes an upper die vacuum port, an upper die air blowing port, a lower die natural moisture discharge port and a lower die vacuum moisture discharge port, the upper die vacuum port and the upper die air blowing port are respectively communicated with the first heating plate, and the first heating plate is communicated with the hot pressing die;

[0031] The lower die natural moisture discharge port and the lower die vacuum moisture discharge port are respectively communicated with the second heating plate.

[0032] Further, the inside of the hot pressing die is provided with air guide holes and air permeable holes, and the air guide holes and the air permeable holes are communicated with each other;

[0033] The dehumidification component includes a moisture discharge pipe and an air suction hood. The moisture discharge pipe is installed on the second frame body, and the moisture discharge pipe is communicated with the air suction hood. The air suction hood is located between the two hot pressing molds;

[0034] The conveying track is provided with a trapezoidal guide rail. The moving trolley is provided with a trapezoidal groove pulley. The trapezoidal groove pulley is slidably installed on the trapezoidal guide rail. The second frame body is provided with a maintenance door.

[0035] Specifically, the turning machine includes a third frame body, a moving seat, a pulling component, an air intake component, a third slide rail, a fourth slide rail, a sixth driving device and a seventh driving device;

[0036] The third slide rail is installed on the third frame body. The moving seat is slidably installed on the third slide rail. The sixth driving device is used to drive the moving seat to move left and right;

[0037] The moving seat is provided with a conveying track. The moving trolley is slidably installed on the conveying track. The fourth slide rail is installed on the moving seat. The pulling component is slidably installed on the fourth slide rail. The pulling component can be connected to the moving trolley. The seventh driving device is used to drive the pulling component to move back and forth;

[0038] The air intake component is installed on the third frame body. The air intake component is used to assist in demolding or mold loading of the mold of the moving trolley.

[0039] Preferably, the sixth driving device includes a sixth driving part, a rack and a second gear;

[0040] The rack is installed on the bottom surface of the moving seat. The sixth driving part is installed on the third frame body. The output end of the sixth driving part is installed with the second gear. The second gear meshes with the rack;

[0041] The seventh driving device includes a seventh driving part, a first fixing seat, a second fixing seat and a chain;

[0042] The first fixing seat is installed on the front side of the moving seat. The first fixing seat is installed with the seventh driving part. The second fixing seat is installed on the rear side of the moving seat. One end of the chain is rotatably installed on the seventh driving part. The other end of the chain is rotatably installed on the second fixing seat. The chain is connected to the pulling component. The seventh driving part is used to drive the chain to rotate.

[0043] In some embodiments, the pulling component includes a pulling seat, a hook, a second mounting seat, an adjusting screw, a spring and a reset plate;

[0044] The pulling seat is slidably mounted on the fourth slide rail. The pulling seat is connected to the chain. The second mounting seat is mounted on the pulling seat. The hook is swingably mounted on the second mounting seat;

[0045] The adjusting screw and the spring are respectively mounted on the hook. The adjusting screw is located at the rear side of the second mounting seat. The end of the adjusting screw can abut against the pulling seat. The spring is located at the front side of the second mounting seat. The end of the spring abuts against the pulling seat;

[0046] The second fixing seat is provided with a hook baffle. The reset plate is mounted on the bottom surface of the hook. The reset plate is opposite to the hook baffle.

[0047] Furthermore, the air intake assembly includes a third driving part, a fourth air intake cover, an air inlet pipe and a second valve;

[0048] The third driving part is mounted on the moving seat. The output end of the third driving part is connected to the fourth air intake cover. The fourth air intake cover can cover the moving trolley;

[0049] The number of the third driving part and the fourth air intake cover are both two. The two fourth air intake covers are communicated through the air inlet pipe. The air inlet pipe is provided with the second valve.

[0050] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0051] Through the second driving device, the grasping assembly, the third air intake cover and the third driving device, the upper mold and the lower mold of the baking and pressing mold are demolded by using the grasping and rising of the grasping assembly and the pressure assistance, and the separation of the product and the upper mold of the baking and pressing mold is ensured, so that the product remains on the lower mold of the baking and pressing mold, which is convenient for taking the product in the subsequent process, and the demolding efficiency of the mold moving manipulator is improved;

[0052] Through the grasping assembly and the second driving device, the grasping assembly can be opened and closed during the lifting process, which is convenient and fast. Cooperating with the moving plate and the first driving device, the mold can be quickly moved, the demolding and the mold moving are combined, and the structure of continuous production in a loop-shaped working station is adopted, so as to improve the production efficiency of the pulp molding baking line;

[0053] The fifth driving device pressurizes the baking and pressing mold, so that the clamping pressure of the baking and pressing mold reaches more than 80 tons, and the pressure is maintained for 2 to 10 seconds. Then, the pressure of the pressurizing oil cylinder is released and it falls back. Under the action of the return spring, the upper and lower molds of the baking and pressing mold are separated by 10 mm - 50 mm. Then, the pressurizing oil cylinder pressurizes again, so that the product is pressed again for baking and water drainage. After maintaining the pressure for 2 to 10 seconds, the pressure is released again. This cycle is repeated many times to ensure the baking and pressing quality. And through the dehumidification component, the gas inside the baking and pressing mold is ensured to be in a relatively dry state, which is beneficial to improving the baking and pressing quality. Moreover, the baking line part of this application discharges moisture not through the mold with a mesh, but by pressing and separating the upper and lower molds multiple times, and the moisture is taken away by blowing and suction. And through sequential relay baking at multiple stations, different mold temperatures and pressures can be set for each baking station to meet the baking requirements of different paper-plastic products, realizing production without a mold with a mesh, and the produced products have no mesh surface, and all surfaces are smooth surfaces, achieving the effect of improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a schematic structural diagram of a pulp molding baking line according to one embodiment of the present invention;

[0055] Figure 2 is a schematic structural diagram of a mold moving manipulator according to one embodiment of the present invention;

[0056] Figure 3 is a schematic structural diagram of a guiding component according to one embodiment of the present invention;

[0057] Figure 4 is a schematic structural diagram of an air inlet cavity according to one embodiment of the present invention;

[0058] Figure 5 is Figure 4 a schematic structural diagram of a partial enlarged view at A of

[0059] Figure 6 is a schematic structural diagram of a baking and pressing unit according to one embodiment of the present invention;

[0060] Figure 7 is a schematic structural diagram of a dehumidification component according to one embodiment of the present invention;

[0061] Figure 8 is a schematic structural diagram of a return spring according to one embodiment of the present invention;

[0062] Figure 9 is a schematic structural diagram of a turning machine according to one embodiment of the present invention;

[0063] Figure 10 is a schematic structural diagram of an air inlet component according to one embodiment of the present invention;

[0064] Figure 11 is Figure 10 a schematic structural diagram of a partial enlarged view at position B of

[0065] Figure 12 a schematic structural diagram of a second driving device according to one embodiment of the present invention;

[0066] Figure 13 a schematic structural diagram of a pulling component according to one embodiment of the present invention;

[0067] Wherein: the mold moving manipulator 1, the first frame 11, the moving plate 12, the grasping component 13, the first mounting seat 131, the cross beam 132, the swing rod 133, the clamping seat 134, the hinge block 1341, the connecting plate 1342, the inclined block 1343, the inclined surface 13431, the first slide rail 135, the first slider 136, the third air inlet hood 14, the first valve 141, the air inlet cavity 142, the first driving device 15, the tooth rail 151, the first gear 152, the first motor 153, the second driving device 16, the third driving device 17, the guiding component 18, the mounting frame 181, the guide rod 182, the mounting plate 183, the second slide rail 191, the second slider 192, the baking and pressing unit 2, the second frame 21, the inspection door 211, the baking and pressing mold 23, the return spring 231, the first heating plate 241, the second heating plate 242, the fourth driving device 251, the fifth driving device 252, the dehumidifying component 26, the dehumidifying pipe 261, the air suction hood 262, the air blowing hood 27, the upper mold vacuum port 281, the upper mold air blowing port 282, the lower mold natural dehumidifying port 283, the lower mold vacuum dehumidifying port 284, the turning machine 3, the third frame 31, the moving seat 32, the pulling component 33, the pulling seat 331, the hook 332, the second mounting seat 333, the adjusting screw 334, the spring 335, the reset plate 336, the air inlet component 35, the third driving part 351, the fourth air inlet hood 352, the air inlet pipe 353, the second valve 354, the third slide rail 361, the fourth slide rail 362, the sixth driving device 37, the sixth driving part 371, the rack 372, the second gear 373, the seventh driving device 38, the seventh driving part 381, the first fixing seat 382, the second fixing seat 383, the hook baffle 3831, the chain 384, the conveying track 4, the trapezoidal guide rail 41, the moving trolley 5, the trapezoidal groove pulley 51. Detailed Embodiments

[0068] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe the features, without order or importance. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is more than two.

[0070] In an embodiment of the invention, such as Figure 1-13As shown in the figure, a pulp molding drying and pressing line includes a mold transfer manipulator 1, a drying and pressing unit 2, a turning machine 3, a conveying track 4, and a moving trolley 5. The number of the drying and pressing units 2 is several, and multiple groups of the drying and pressing units 2 are arranged in the front-rear direction. Two adjacent drying and pressing units 2 can be detachably connected. A turning machine 3 is installed at the rear side of the last drying and pressing unit 2, a mold transfer manipulator 1 is installed at the front side of the foremost drying and pressing unit 2, and a turning machine 3 is installed at the front side of the mold transfer manipulator 1. The mold transfer manipulator 1, the drying and pressing unit 2, and the turning machine 3 are respectively provided with the conveying track 4, and the conveying track 4 is installed with the moving trolley 5. The mold transfer manipulator 1 includes a first frame 11, a moving plate 12, a grasping component 13, a third air inlet hood 14, a first driving device 15, a second driving device 16, and a third driving device 17. The moving plate 12 is movably installed on the first frame 11 in the left-right direction, and the first driving device 15 is used to drive the moving plate 12 to move left and right. The grasping component 13 is movably installed on the moving plate 12 in the up-down direction, and the grasping component 13 opens and closes by moving up and down. The second driving device 16 is used to drive the grasping component 13 to move up and down. The third air inlet hood 14 is movably installed on the moving plate 12 in the up-down direction, the third air inlet hood 14 is located below the grasping component 13, and the third driving device 17 is used to drive the third air inlet hood 14 to move up and down. The drying and pressing unit 2 includes a second frame 21, a drying and pressing mold 23, a first heating plate 241, a second heating plate 242, a fourth driving device 251, a fifth driving device 252, a dehumidifying component 26, and a blowing hood 27. The second frame 21 is provided with the conveying track 4, the moving trolley 5 is movably installed on the conveying track 4, and the drying and pressing mold 23 is installed on the moving trolley 5. The first heating plate 241 is installed on the second frame 21, the first heating plate 241 is located above the drying and pressing mold 23, and the first heating plate 241 can cover the top surface of the drying and pressing mold 23. The second heating plate 242 is installed on the second frame 21, the second heating plate 242 is located below the drying and pressing mold 23, the second heating plate 242 can cover the bottom surface of the drying and pressing mold 23, and the second heating plate 242 is communicated with the drying and pressing mold 23. The fourth driving device 251 is used to drive the second heating plate 242 to move up and down, the fifth driving device 252 is used to adjust the pressure in the drying and pressing mold 23, the dehumidifying component 26 is installed on the second frame 21, and the dehumidifying component 26 is used to extract the moisture in the drying and pressing mold 23.The air blowing hood 27 is installed on the second frame 21. The air blowing hood 27 is directly opposite to the mold closing position of the hot pressing mold 23. The hot pressing mold 23 is provided with a return spring 231, and the return spring 231 is located between the upper mold and the lower mold of the hot pressing mold 23. In this embodiment, the number of the hot pressing unit 2 is three. The first frame 11 is provided with two conveying tracks 4 along its front-back direction. Each conveying track 4 is installed with a moving trolley 5. The left moving trolley 5 is placed with the hot pressing mold 23, specifically the upper mold of the hot pressing mold 23 and the lower mold of the hot pressing mold 23, and the upper mold of the hot pressing mold 23 is provided with an air inlet. The right moving trolley 5 is only placed with the lower mold of the hot pressing mold 23. During operation, the right moving trolley 5 moves on the right conveying track, and the left moving trolley 5 moves on the left conveying track 4. When it moves below the moving plate 12, the first driving device 15 drives the moving plate 12 to move leftward, so that the third air inlet hood 14 is located directly above the hot pressing mold 23. Then the second driving device 16 drives the grasping assembly 13 to descend. During the descending process, the grasping assembly 13 gradually opens until the third driving device 17 drives the third air inlet hood 14 to fit onto the top surface of the hot pressing mold 23. The second driving device 16 drives the grasping assembly 13 to ascend. During the ascending process, the grasping assembly 13 clamps the upper mold of the hot pressing mold 23, and the third air inlet hood 14 will press tightly on the top surface of the upper mold of the hot pressing mold 23. At the same time, air is blown into the third air inlet hood 14, and the gas enters the inside of the hot pressing mold 23 from the air inlet of the upper mold of the hot pressing mold 23. Through the pressure of the pressure, it assists in demolding the upper mold and the lower mold of the hot pressing mold 23. The grasping assembly 13 grabs the upper mold of the hot pressing mold 23. After rising to a set height, the air intake is closed. Then the first driving device 15 drives the moving plate 12 to move rightward, so that the upper mold grabbed by the grasping assembly 13 is directly opposite to the lower mold of the right moving trolley 5. The second driving device 16 drives the grasping assembly 13 to descend until the grasping assembly 13 closes the upper mold and the lower mold of the right moving trolley 5. After closing the mold, the moving plate 12, the grasping assembly 13 and the third air inlet hood 14 are reset. The right moving trolley 5 moves towards multiple hot pressing units 2 for subsequent hot pressing. After the moving trolley 5 enters the second frame 21, through the second driving device 16, the grasping assembly 13, the third air inlet hood 14 and the third driving device 17, it uses the grasping and ascending of the grasping assembly 13 and the pressure to assist in demolding the upper mold and the lower mold of the hot pressing mold 23, and ensures the separation of the product and the upper mold of the hot pressing mold 23, so that the product remains on the lower mold of the hot pressing mold 23, facilitating the taking of the product in the subsequent process, and achieving the improvement of the demolding efficiency of the mold moving manipulator 1;Through the grasping assembly 13 and the second driving device 16, the grasping assembly 13 can be opened and closed during the lifting process, which is convenient and fast. Cooperating with the moving plate 12 and the first driving device 15, rapid mold moving is achieved, and demolding and mold moving are combined. Moreover, with the structure of continuous production in a loop-shaped work station, the production efficiency of the pulp molding drying and pressing line is improved. Further, an air clearance area is provided on the bottom surface of the moving trolley 5, so that the second heating plate 242 can abut against the bottom surface of the drying and pressing mold 23. The fourth driving device 251 is a lifting oil cylinder, and the fifth driving device 252 is a pressurizing oil cylinder. The first heating plate 241 and the second heating plate 242 can both be electric heating plates, heat-conducting oil heating plates, steam heating plates or hot air heating plates, and their main function is to heat the drying and pressing mold 23. During operation, the moving trolley 5 carries the drying and pressing mold 23 to move to the set position, making the top surface of the drying and pressing mold 23 face the first heating plate 241 and the bottom surface of the drying and pressing mold 23 face the second heating plate 242. The fourth driving device 251 drives the second heating plate 242 to rise, making the second heating plate 242 abut against the bottom surface of the drying and pressing mold 23, and the second heating plate 242 jacks up the drying and pressing mold 23 until the top surface of the drying and pressing mold 23 fits against the bottom surface of the first heating plate 241. Then the fifth driving device 252 starts to work. The fifth driving device 252 pressurizes the drying and pressing mold 23, so that the clamping pressure of the drying and pressing mold 23 reaches more than 80 tons and is held for 2 to 10 seconds. Then the pressurizing oil cylinder releases pressure and falls back. Under the action of the return spring 231, the upper mold and the lower mold of the drying and pressing mold 23 are separated by 10 mm - 50 mm. Then the pressurizing oil cylinder pressurizes again, so that the product is pressed again for drying and water removal. After holding the pressure for 2 to 10 seconds, the pressure is released again. This cycle is repeated multiple times, and the number of cycles is determined according to the actual production situation, so as to ensure the drying and pressing quality. Further, during the drying and pressing process, the air blowing hood 27 continuously blows air, and the air can be hot air or normal temperature air, so as to be able to take away the moisture of the dried and pressed product. And through the dehumidifying assembly 26, the gas inside the drying and pressing mold 23 is ensured to be in a relatively dry state, which is beneficial to improving the drying and pressing quality. The drying and pressing line part of this application discharges moisture through the mold with a mesh, but separates the upper and lower molds by multiple pressings and separations, and the moisture is taken away by blowing and suction. Moreover, through sequential relay drying and pressing at multiple work stations, different mold temperatures and pressures can be set for each drying and pressing work station to meet the drying and pressing requirements of different paper-plastic products. It realizes that the production does not require a mold with a mesh, and the produced product has no mesh surface, and all surfaces are smooth surfaces, achieving the production of pulp molding products without a mesh surface quickly, and achieving the effects of improving product quality and production efficiency;After the baking and pressing are completed, the moving trolley 5 moves towards the turning machine 3 at the rearmost end. Then, the turning machine 3 at the rearmost end transfers the moving trolley 5 from the conveying track 4 on the right side to the conveying track 4 on the left side. After passing through multiple groups of the baking and pressing unit 2 again, it arrives below the moving plate 12 of the mold moving manipulator 1 to perform a new round of mold moving. After the mold moving is completed, the moving trolley 5 on the left side moves towards the turning machine 3 at the foremost end, and the turning machine 3 at the foremost end transfers the moving trolley from the conveying track 4 on the left side to the conveying track 4 on the right side. The moving trolley 5 that moves to the right side moves towards the mold moving manipulator 1 and waits for the mold closing of the next round of mold loading.;

[0071] Such as Figure 3-5As shown, the grasping assembly 13 includes a first mounting base 131, a cross beam 132, a swing rod 133, a clamping base 134, a first slide rail 135 and a first slider 136; the second driving device 16 is installed on the moving plate 12, the output end of the second driving device 16 is installed with the first mounting base 131, the bottom surface of the first mounting base 131 is installed with the cross beam 132, and the clamping base 134 is movably installed at the end of the bottom surface of the cross beam 132 in the left-right direction; one end of the swing rod 133 is hinged to the first mounting base 131, and the other end of the swing rod 133 is hinged to the clamping base 134; the first slide rail 135 is installed at the end of the bottom surface of the cross beam 132, the first slider 136 is slidably installed on the first slide rail, and the first slider 136 is connected to the top surface of the clamping base 134; the clamping base 134 includes a hinge block 1341, a connecting plate 1342 and an inclined block 1343; one end of the connecting plate 1342 is connected to the outside of the hinge block 1341, the other end of the connecting plate 1342 is installed with the inclined block 1343, the inclined block 1343 is provided with an inclined surface 13431, and the inclined surface 13431 faces the upper die of the baking and pressing die. In this embodiment, the number of the swing rods 133 is four, the number of the clamping bases 134 is two, two of the swing rods 133 are respectively hinged on the front and rear sides of the first mounting base 131, and one of the swing rods 133 is respectively hinged on the front and rear sides of the clamping base 134. The second driving device 16 is a cylinder. During operation, the output shaft of the second driving device 16 extends out, and the first mounting base 131 descends. Under the action of the swing rod 133, the two clamping bases 134 both move outward. When the clamping base 134 moves, specifically, the first slider 136 on the top surface of the clamping base 134 slides left and right on the first slide rail 135, so as to improve the moving smoothness of the clamping base 134, prevent moving jamming and deviation, and achieve the purpose of opening. When the mounting base 32 rises, the two clamping bases 134 both move inward, so as to clamp and grab the upper die. The structure is reliable and firm, and the operation is convenient and fast. In this embodiment, by setting the inclined block 1343 and making the inclined surface 13431 of the inclined block 1343 face the upper die of the baking and pressing die, during the process of descending and clamping, the inclined surface 13431 can facilitate the inclined block 1343 to quickly and smoothly clamp the upper die of the baking and pressing die, so as to improve the clamping and grasping efficiency of the clamping base 134.

[0072] As Figure 2-4As shown, the mold moving manipulator 1 further includes a guiding component 18, a second slide rail 191 and a second slider 192. The guiding component 18 includes a mounting frame 181, a guide rod 182 and a mounting plate 183. One end of the guide rod 182 is mounted on the bottom surface of the mounting frame 181. The other end of the guide rod 182 passes through the moving plate 12, and the other end of the guide rod 182 is connected to the top surface of the mounting plate 183. The top surface of the mounting plate 183 is mounted on the bottom surface of the first mounting seat 131, and the bottom surface of the mounting plate 183 is mounted on the top surface of the cross beam 132. The second slide rail 191 is mounted on the first frame body 11, and the second slider 192 is slidably mounted on the second slide rail 191. The top surface of the second slider 192 is connected to the bottom surface of the moving plate 12. In this embodiment, the number of the guide rods 182 is four. One ends of the four guide rods 182 are connected to each other through the mounting frame 181, and the other ends of the four guide rods 182 are connected to each other through the mounting plate 183, which is beneficial to improving the structural stability of the mold moving manipulator. And by setting four guide rods 182, the moving stability and moving smoothness of the grasping component 13 are ensured. In this embodiment, when the moving plate 12 moves, specifically, the second slider 192 on the bottom surface of the moving plate 12 moves left and right on the first slide rail 91, which is beneficial to improving the moving smoothness of the moving plate 12.

[0073] As Figure 3-4As shown, the third driving device 17 is installed on the mounting frame 181, and the output end of the third driving device 17 is connected to the third air inlet hood 14; a first valve 141 is provided on the top surface of the third air inlet hood 14, and two air inlet cavities 142 are provided inside the third air inlet hood 14. The two air inlet cavities 142 can communicate with each other through the first valve 141. First sealing rubber pads (not shown in the figure) are installed around the bottom surfaces of the two air inlet cavities 142; the first driving device 15 includes a toothed rail 151, a first gear 152 and a first motor 153. The toothed rail 151 is installed on the first frame body 11, the first motor 153 is installed on the moving plate 12, the output end of the first motor 153 is provided with the first gear 152, and the first gear 152 meshes with the toothed rail 151. In this embodiment, the third driving device 17 is a cylinder, and the first valve 141 is connected to an external air supply device. During demolding, the external air supply device passes gas into the first valve 141, and then the gas enters the inside of the baking and pressing mold through the air inlet cavity 142. It should be noted that for the baking and pressing products with double-sided slurry suction, only a single air inlet cavity 142 is required, that is, the first valve 141 does not need to be opened at this time, so that the two air inlet cavities 142 are independent of each other. For the baking and pressing products with single-sided slurry suction, two air inlet cavities 142 are required to intake air, that is, the first valve 141 needs to be opened to connect the two air inlet cavities 142. Elastic first sealing rubber pads are installed around the bottom surfaces of the two air inlet cavities 142 to prevent leakage during air blowing. In this embodiment, during operation, the first motor 153 drives the first gear 152 to rotate, and the first gear 152 moves left and right on the toothed rail 151, so that the moving plate 12 moves left and right, which is convenient and fast, and has high transmission efficiency.

[0074] As Figure 6-7As shown, the baking and pressing unit 2 further includes an upper mold vacuum port 281, an upper mold air blowing port 282, a lower mold natural moisture discharge port 283, and a lower mold vacuum moisture discharge port 284. The upper mold vacuum port 281 and the upper mold air blowing port 282 are respectively connected to the first heating plate 241, and the first heating plate 241 is connected to the baking and pressing mold 23; the lower mold natural moisture discharge port 283 and the lower mold vacuum moisture discharge port 284 are respectively connected to the second heating plate 242. In this embodiment, through holes corresponding to the baking and pressing mold 23 are provided in the first heating plate 241 to ensure the smoothness of air blowing and vacuum adsorption of the upper mold. Through the upper mold vacuum port 281 and the upper mold air blowing port 282, in cooperation with the pressurization and fall of the pressurizing oil cylinder, the coordination of product and mold separation and adhesion is ensured, thus being more conducive to the evaporation of product moisture. In this embodiment, the lower mold natural moisture discharge port 283 and the lower mold vacuum moisture discharge port 284 are provided, and corresponding control valves are provided at each moisture discharge port. The lower mold vacuum moisture discharge port 284 corresponds to vacuum moisture discharge, and the moisture is directly drawn away by an external vacuum system, while the lower mold natural moisture discharge port 283 corresponds to natural moisture discharge, and the moisture is directly discharged outside the baking and pressing mold 23 and finally discharged by the dehumidification assembly 26. The moisture discharge method can be selected according to the actual production situation to achieve the effect of improving the versatility of the baking and pressing unit.

[0075] As Figure 8As shown, the inside of the baking and pressing die 23 is provided with air guide holes and air permeable holes (not shown in the figure), and the air guide holes and the air permeable holes communicate with each other; the dehumidifying assembly 26 includes a moisture discharge pipe 261 and an air suction hood 262. The moisture discharge pipe 261 is installed on the second frame 21, and the moisture discharge pipe 261 communicates with the air suction hood 262. The air suction hood 262 is located between the two baking and pressing dies 23; the conveying track 4 is provided with a trapezoidal guide rail 41, the moving trolley 5 is provided with a trapezoidal groove pulley 51, and the trapezoidal groove pulley 51 is slidably installed on the trapezoidal guide rail 41. The second frame 21 is provided with a maintenance door 211. In this embodiment, the upper die and the lower die of the baking and pressing die 23 are both provided with corresponding air guide holes and the air permeable holes, so as to ensure the normal flow of air. The second frame 21 is provided with two conveying tracks 4, and each conveying track 4 is installed with the moving trolley. Moreover, the moving directions of the two moving trolleys 5 are opposite. When the two moving trolleys 5 approach each other and the two moving trolleys 5 move to directly below the corresponding first heating plate 241, the fourth driving device 251 drives the second heating plate 242 to rise, so that the second heating plate 242 abuts against the bottom surface of the baking and pressing die 23, and the second heating plate 242 jacks up the baking and pressing die 23 until the top surface of the baking and pressing die 23 fits against the bottom surface of the first heating plate 241. Then, the fifth driving device 252 starts to work, and the fifth driving device 252 applies pressure to the baking and pressing die 23. At the same time, the dehumidifying assembly 26 also starts to work. The moisture discharge pipe 261 is connected to a negative pressure fan or a vacuum system. During operation, the moisture discharge pipe 261 dehumidifies through the air suction hood 262, so as to ensure that the gas remains relatively dry during baking and pressing. Three trapezoidal groove pulleys 51 are respectively arranged on the left side and the right side of the moving trolley 5. By the cooperation of the trapezoidal groove pulleys 51 and the trapezoidal guide rail 41, it is beneficial to improve the moving smoothness and moving stability of the moving trolley 5. A maintenance door 211 is arranged on one side of the baking and pressing die 23, so as to facilitate observation and maintenance operations.

[0076] As Figure 9-11The turning machine 3 includes a third frame 31, a moving seat 32, a pulling assembly 33, an air intake assembly 35, a third slide rail 361, a fourth slide rail 362, a sixth driving device 37, and a seventh driving device 38; the third slide rail 361 is installed on the third frame 31, the moving seat 32 is slidably installed on the third slide rail 361, and the sixth driving device 37 is used to drive the moving seat 32 to move left and right; the moving seat 32 is provided with a conveying track 4, the moving trolley 5 is slidably installed on the conveying track 4, the fourth slide rail 362 is installed on the moving seat 32, the pulling assembly 33 is slidably installed on the fourth slide rail 362, the pulling assembly 33 can be connected to the moving trolley 5, and the seventh driving device 38 is used to drive the pulling assembly 33 to move back and forth; the air intake assembly 35 is installed on the third frame 31, and the air intake assembly 35 is used to assist in demolding or mold loading of the mold of the moving trolley 5. In this embodiment, the left end of the third frame 31 is the material taking station, and the right end of the third frame 31 is the feeding station. During operation, the sixth driving device 37 drives the moving seat 32 to move to the left, so that the moving seat 32 moves on the third slide rail 361 until the moving seat 32 is located at the material taking station at the left end of the third frame 31. The moving trolley 5 moves in the direction of the moving seat 32 from the previous process, and the moving trolley 4 moves to the moving seat 32 through the conveying track 4. And the seventh driving device 38 drives the pulling assembly 33 to move back and forth, so that the pulling assembly 33 moves along the length direction of the fourth slide rail 362 until the pulling assembly 33 contacts and connects with the moving trolley 5. Then the seventh driving device 38 pulls the moving trolley 5 to a set position through the pulling assembly 33. When demolding and taking the material, the air intake assembly 35 inflates the moving trolley 5, so that the product is separated from the mold, thereby achieving the effect of assisting demolding. After the demolding is completed, the first driving device 7 drives the moving seat 32 to move to the right, so that the moving seat 32 moves to the feeding station at the right end of the third frame 31, places the product on the mold of the moving trolley 5. Then the air intake assembly 35 sucks air, and the product is tightly attached to the mold of the moving trolley 5 through vacuum adsorption, and then a new round of baking and pressing begins; in this application, through the sixth driving device 37 and the moving seat 32, the feeding station and the material taking station are linked together to realize reciprocating continuous operation, achieving the effect of improving the production efficiency of the turning machine; further, through the pulling assembly 33 and the seventh driving device 38, it is ensured that there is enough space for material taking and feeding after the moving trolley 5 moves in place, ensuring the stability of the work. Through the air intake assembly 35, it assists the moving trolley 5 in demolding and mold loading, further improving the production efficiency.

[0077] Such as Figure 10-11As shown, the sixth driving device 37 includes a sixth driving part 371, a rack 372 and a second gear 373; the rack 372 is installed on the bottom surface of the moving seat 32, the sixth driving part 371 is installed on the third frame 31, the output end of the sixth driving part 371 is installed with the second gear 373, and the second gear 373 meshes with the rack 372; the seventh driving device 38 includes a seventh driving part 381, a first fixing seat 382, a second fixing seat 383 and a chain 384; the first fixing seat 382 is installed on the front side of the moving seat 32, the first fixing seat 382 is installed with the seventh driving part 381, the second fixing seat 383 is installed on the rear side of the moving seat 32, one end of the chain 384 is rotatably installed on the seventh driving part 381, the other end of the chain 384 is rotatably installed on the second fixing seat 383, the chain 384 is connected to the pulling assembly 33, and the seventh driving part 381 is used to drive the chain 384 to rotate. In this embodiment, both the sixth driving part 371 and the seventh driving part 381 are motors. During operation, the sixth driving part 371 drives the second gear 373 to rotate, so that the rack 372 drives the moving seat 32 to move left and right, the seventh driving part 381 drives the chain 384 to rotate, and the rotation of the chain 384 drives the pulling assembly 33 to slide on the fourth slide rail 362, which is convenient and fast with high transmission efficiency.

[0078] As Figure 12-13As shown, the pulling component 33 includes a pulling seat 331, a hook 332, a second mounting seat 333, an adjusting screw 334, a spring 335 and a reset plate 336; the pulling seat 331 is slidably mounted on the fourth slide rail 362, the pulling seat 331 is connected to the chain 384, the second mounting seat 333 is mounted on the pulling seat 331, and the hook 332 is swingably mounted on the second mounting seat 333; the adjusting screw 334 and the spring 335 are respectively mounted on the hook 332, the adjusting screw 334 is located at the rear side of the second mounting seat 333, the end of the adjusting screw 334 can abut against the pulling seat 331, the spring 335 is located at the front side of the second mounting seat 333, and the end of the spring 335 abuts against the pulling seat 331; the second fixing seat 383 is provided with a hook baffle 3831, the reset plate 336 is mounted on the bottom surface of the hook 332, and the reset plate 336 faces the hook baffle 3831. In this embodiment, when the moving trolley 5 moves to the set position, the seventh driving part 381 drives the chain 384 to rotate, the rotation of the chain 384 drives the pulling seat 331 to move towards the moving trolley 5, so that the hook 332 of the pulling seat 331 hooks the moving trolley 5, thus facilitating pulling the moving trolley 5 to the set position. When unhooking is required, the seventh driving part 381 drives the chain 384 to rotate, the rotation of the chain 384 drives the pulling seat 331 to move towards the second fixing seat 383 until the reset plate 336 collides with the hook baffle 3831. Since the hook 332 is swingably mounted on the second mounting seat 333, the hook 33 swings along the hinge of the second mounting seat 333. At this time, the spring 335 is compressed, so that the hook 332 is disengaged from the moving trolley 5. After unhooking, under the elastic force of the spring 335, the hook 332 returns to its original position, and the engaging position of the hook 332 and the moving trolley 5 can be adjusted by the adjusting screw 334. The structure is convenient and reliable, which is beneficial to improving the engaging efficiency and quality.

[0079] As Figure 9-10 and Figure 12As shown, the intake assembly 35 includes a third driving part 351, a fourth intake hood 352, an intake pipe 353, and a second valve 354; the third driving part 351 is installed on the moving seat 32, and the output end of the third driving part 351 is connected to the fourth intake hood 352, and the fourth intake hood 352 can cover the moving trolley 5; the number of the third driving part 351 and the fourth intake hood 352 is two respectively, and the two fourth intake hoods 352 are communicated through the intake pipe 353, and the second valve 354 is installed on the intake pipe 353. In this embodiment, an air vent is provided at the bottom of the moving trolley 5, and the third driving part 351 is a cylinder. During operation, the output shaft of the third driving part 351 extends, so that the fourth intake hood 352 covers the air vent at the bottom of the moving trolley 5, which is convenient for an external air source device to inflate the mold of the moving trolley 5, thereby improving the demolding efficiency and demolding quality. And a third sealing gasket is provided on the fourth intake hood 352, which can improve the sealing performance of the fourth intake hood 352 and prevent leakage. In this embodiment, the number of the third driving part 351 and the fourth intake hood 352 is two respectively, and the two fourth intake hoods 352 are communicated through the intake pipe 353. The main function of setting the second valve 354 is to provide different intake hood channels for products with single-sided pulp suction and products with double-sided pulp suction, so as to be applicable to the demolding of different products and achieve the effect of improving the versatility of the intake assembly 35. It should be noted that sealing plates are installed on the outer surfaces of the first frame body 11, the second frame body 21, and the third frame body 31, so as to ensure the heat utilization rate of the pulp molding drying production line.

[0080] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection 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.

[0081] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pulp molding drying line, characterized in that: It includes a mold moving manipulator, a baking and pressing unit, a turning machine, a conveying track and a moving trolley; The number of the baking and pressing units is several. Multiple groups of the baking and pressing units are arranged in the front-rear direction, and two adjacent baking and pressing units can be detachably connected. The turning machine is installed at the rear side of the last baking and pressing unit, the mold moving manipulator is installed at the front side of the foremost baking and pressing unit, the turning machine is installed at the front side of the mold moving manipulator. The conveying track is respectively provided for the mold moving manipulator, the baking and pressing unit and the turning machine, and the moving trolley is installed on the conveying track; The mold moving manipulator includes a first frame body, a moving plate, a grasping component, a third air inlet hood, a first driving device, a second driving device and a third driving device; The moving plate is movably installed on the first frame body in the left-right direction, and the first driving device is used to drive the moving plate to move left and right; The grasping component is movably installed on the moving plate in the up-down direction, and the grasping component opens and closes by moving up and down, and the second driving device is used to drive the grasping component to move up and down; The third air inlet hood is movably installed on the moving plate in the up-down direction, the third air inlet hood is located below the grasping component, and the third driving device is used to drive the third air inlet hood to move up and down; The baking and pressing unit includes a second frame body, a baking and pressing mold, a first heating plate, a second heating plate, a fourth driving device, a fifth driving device, a dehumidifying component and a blowing hood; The second frame body is provided with a conveying track, the moving trolley is movably installed on the conveying track, and the baking and pressing mold is installed on the moving trolley; The first heating plate is installed on the second frame body, the first heating plate is located above the baking and pressing mold, and the first heating plate can cover the top surface of the baking and pressing mold; The second heating plate is installed on the second frame body, the second heating plate is located below the baking and pressing mold, the second heating plate can cover the bottom surface of the baking and pressing mold, and the second heating plate is communicated with the baking and pressing mold; The fourth driving device is used to drive the second heating plate to move up and down, the fifth driving device is used to adjust the pressure in the baking and pressing mold, the dehumidifying component is installed on the second frame body, and the dehumidifying component is used to extract the moisture in the baking and pressing mold; The blowing hood is installed on the second frame body, the blowing hood is directly opposite to the mold closing position of the baking and pressing mold, and the baking and pressing mold is provided with a return spring, and the return spring is located between the upper mold and the lower mold of the baking and pressing mold; The first frame body is provided with two conveying tracks along its front-back direction. Each conveying track is equipped with a moving trolley. The left moving trolley holds a hot-pressing die, specifically the upper die of the hot-pressing die and the lower die of the hot-pressing die. And the upper die of the hot-pressing die is provided with an air inlet. The right moving trolley only holds the lower die of the hot-pressing die. During operation, the right moving trolley moves on the right conveying track, and the left moving trolley moves on the left conveying track. Until it moves below the moving plate, the first driving device drives the moving plate to move leftward, so that the third air inlet cover is located directly above the hot-pressing die. Then the second driving device drives the grasping assembly to descend. The grasping assembly gradually opens during the descent until the third driving device drives the third air inlet cover to fit onto the top surface of the hot-pressing die. The second driving device drives the grasping assembly to ascend. During the ascent, the grasping assembly clamps the upper die of the hot-pressing die. The third air inlet cover will press tightly against the top surface of the upper die of the hot-pressing die. At the same time, air is blown into the third air inlet cover, and the gas enters the interior of the hot-pressing die through the air inlet of the upper die of the hot-pressing die. Through the pressure of the air pressure, it assists in demolding the upper die and the lower die of the hot-pressing die. The grasping assembly grabs the upper die of the hot-pressing die. After ascending a set height, the air intake is closed. Then the first driving device drives the moving plate to move rightward, so that the grabbed upper die by the grasping assembly is directly opposite to the lower die of the right moving trolley. The second driving device drives the grasping assembly to descend until the grasping assembly closes the upper die and the lower die of the right moving trolley. After closing the mold, the moving plate, the grasping assembly, and the third air inlet cover return to their original positions. The right moving trolley moves towards the multiple hot-pressing unit groups for subsequent hot-pressing; The turning machine includes a third frame body, a moving seat, a pulling assembly, an air intake assembly, a third slide rail, a fourth slide rail, a sixth driving device, and a seventh driving device; The third slide rail is installed on the third frame body. The moving seat is slidably installed on the third slide rail. The sixth driving device is used to drive the moving seat to move left and right; The moving seat is provided with a conveying track. The moving trolley is slidably installed on the conveying track. The fourth slide rail is installed on the moving seat. The pulling assembly is slidably installed on the fourth slide rail. The pulling assembly can be connected to the moving trolley. The seventh driving device is used to drive the pulling assembly to move back and forth; The air intake assembly is installed on the third frame body. The air intake assembly is used to assist in demolding or mold loading of the die of the moving trolley.

2. The pulp molding drying and pressing line according to claim 1, characterized in that: The grasping assembly includes a first mounting seat, a cross beam, a swing rod, a clamping seat, a first slide rail, and a first slider; The second driving device is installed on the moving plate. The output end of the second driving device is installed with the first mounting seat. The bottom surface of the first mounting seat is installed with the cross beam. The clamping seat is slidably installed at the end of the bottom surface of the cross beam; One end of the swing rod is hinged to the first mounting seat, and the other end of the swing rod is hinged to the clamping seat; The first slide rail is installed at the end of the bottom surface of the cross beam. The first slider is slidably installed on the first slide rail, and the first slider is connected to the top surface of the clamping seat. The clamping seat includes a hinge block, a connecting plate and an inclined block. One end of the connecting plate is connected to the outside of the hinge block, and the other end of the connecting plate is installed with the inclined block. The inclined block is provided with an inclined surface, and the inclined surface faces the upper die of the baking and pressing die.

3. A pulp molding drying and pressing line according to claim 2, characterized in that: The die moving manipulator further includes a guiding assembly, a second slide rail and a second slider. The guiding assembly includes a mounting frame, a guide rod and a mounting plate. One end of the guide rod is installed on the bottom surface of the mounting frame. The other end of the guide rod passes through the moving plate, and the other end of the guide rod is connected to the top surface of the mounting plate. The top surface of the mounting plate is installed on the bottom surface of the first mounting seat, and the bottom surface of the mounting plate is installed on the top surface of the cross beam. The second slide rail is installed on the first frame body. The second slider is slidably installed on the second slide rail, and the top surface of the second slider is connected to the bottom surface of the moving plate.

4. A pulp molding drying and pressing line according to claim 3, characterized in that: The third driving device is installed on the mounting frame, and the output end of the third driving device is connected to the third air inlet hood. The top surface of the third air inlet hood is provided with a first valve. The inside of the third air inlet hood is provided with two air inlet cavities, and the two air inlet cavities can be communicated with each other through the first valve. First sealing rubber pads are installed around the bottom surfaces of the two air inlet cavities. The first driving device includes a toothed rail, a first gear and a first motor. The toothed rail is installed on the first frame body. The first motor is installed on the moving plate, and the output end of the first motor is installed with the first gear. The first gear meshes with the toothed rail.

5. A pulp molding drying and pressing line according to claim 1, characterized in that: The baking and pressing unit further includes an upper die vacuum port, an upper die air blowing port, a lower die natural moisture discharging port and a lower die vacuum moisture discharging port. The upper die vacuum port and the upper die air blowing port are respectively communicated with the first heating plate, and the first heating plate is communicated with the baking and pressing die. The lower die natural moisture discharging port and the lower die vacuum moisture discharging port are respectively communicated with the second heating plate.

6. A pulp molding drying and pressing line according to claim 1, characterized in that: The inside of the baking and pressing die is provided with air guide holes and air permeable holes, and the air guide holes and the air permeable holes are communicated with each other. The moisture extraction assembly includes a moisture discharge pipe and a suction hood. The moisture discharge pipe is installed on the second frame body. The moisture discharge pipe is communicated with the suction hood, and the suction hood is located between the two baking and pressing dies. The conveying track is provided with a trapezoidal guide rail. The moving trolley is provided with a trapezoidal groove pulley. The trapezoidal groove pulley is slidably installed on the trapezoidal guide rail. The second frame body is provided with a maintenance door.

7. A pulp molding drying line according to claim 1, characterized in that: The sixth driving device includes a sixth driving part, a rack and a second gear. The rack is installed on the bottom surface of the moving seat. The sixth driving part is installed on the third frame body. The output end of the sixth driving part is installed with the second gear. The second gear meshes with the rack. The seventh driving device includes a seventh driving part, a first fixing seat, a second fixing seat and a chain. The first fixing seat is installed on the front side of the moving seat. The seventh driving part is installed on the first fixing seat. The second fixing seat is installed on the rear side of the moving seat. One end of the chain is rotatably installed on the seventh driving part, and the other end of the chain is rotatably installed on the second fixing seat. The chain is connected to the pulling assembly, and the seventh driving part is used to drive the chain to rotate.

8. A pulp molding drying and pressing line according to claim 7, characterized in that: The pulling assembly includes a pulling seat, a hook, a second mounting seat, an adjusting screw, a spring and a reset plate; The pulling seat is slidably installed on the fourth slide rail. The pulling seat is connected to the chain. The second mounting seat is installed on the pulling seat. The hook is swingably installed on the second mounting seat; The adjusting screw and the spring are respectively installed on the hook. The adjusting screw is located at the rear side of the second mounting seat, and the end of the adjusting screw can abut against the pulling seat. The spring is located at the front side of the second mounting seat, and the end of the spring abuts against the pulling seat; The second fixing seat is provided with a hook baffle. The reset plate is installed on the bottom surface of the hook, and the reset plate faces the hook baffle.

9. A pulp molding drying and pressing line according to claim 1, characterized in that: The air intake assembly includes a third driving part, a fourth air intake cover, an air inlet pipe and a second valve; The third driving part is installed on the moving seat. The output end of the third driving part is connected to the fourth air intake cover, and the fourth air intake cover can cover the moving trolley; The number of the third driving parts and the fourth air intake covers are both two. The two fourth air intake covers are communicated through the air inlet pipe, and the air inlet pipe is installed with the second valve.

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