Inverted suction pulp production line for paper products production

Abstract

The present invention belongs to the technical field of paper products, and in particular, relates to a suction pulp production line for paper product production. It solves the defects of the existing production line such as single function. The suction pulp production line for paper product production includes at least one suction pulp forming machine that can perform primary extrusion heating and secondary extrusion heating in sequence, and also includes at least one robot and a transfer mold connected to each robot. The robot drives the transfer mold to obtain the paper product after secondary extrusion heating and transfer it to the outside of the suction pulp forming machine. The advantages of the present invention are: multifunctional and more practical.

Description

Technical Field

[0001] The invention belongs to the technical field of paper products, and in particular relates to a reverse suction pulp production line for producing paper products. Background Art

[0002] Paper products are formed by cold extrusion and hot extrusion of pulp.

[0003] After slurry suction, the slurry needs to be extruded. The current slurry suction adopts flip-type slurry suction, and the slurry after slurry suction is transferred by a robot, and then extruded by a subsequent molding machine.

[0004] The disadvantages of this method are that the manufacturing cost of the production line equipment is high and the function of the molding machine is relatively single. Summary of the invention

[0005] The purpose of the present invention is to provide a reverse suction pulp production line for paper product production that can solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the inverted suction pulp production line for paper product production includes at least one inverted suction pulp forming machine that can perform primary extrusion heating and secondary extrusion heating in sequence, and also includes at least one robot and a transfer mold connected to each robot. The robot drives the transfer mold to obtain the paper product after secondary extrusion heating and transfer it to the outside of the inverted suction pulp forming machine.

[0007] The optimization plan also includes several heat presses, and the robot drives the transfer mold to obtain the paper products after secondary extrusion and heating and transfer them to the heat press.

[0008] The optimization scheme, the inverted suction slurry forming machine includes a frame, a slurry box is provided on the frame and the top of the slurry box is provided with an opening, a lifting type inverted suction slurry mechanism is provided on the frame and is located above the opening of the slurry box, and the lifting type inverted suction slurry mechanism extends into the slurry box to absorb the slurry, a transfer mold is also provided on the frame which is horizontally slidably connected to the frame, and the transfer mold is connected to the translation drive mechanism, the translation drive mechanism drives the transfer mold to move below the lifting type inverted suction slurry mechanism and the lifting type inverted suction slurry mechanism descends so that the transfer mold and the lifting type inverted suction slurry mechanism perform a first extrusion molding on the absorbed slurry and prepare a first molded blank, a cleaning mechanism is connected to the transfer mold which can clean the lifting type inverted suction slurry mechanism before the transfer mold moves to the lifting type inverted suction slurry mechanism, an extrusion upper mold is also provided on the frame and the extrusion upper mold is connected to the lifting drive mechanism, and when the transfer mold moves below the extrusion upper mold, the lifting drive mechanism drives the extrusion upper mold to descend and contact the first molded blank absorbed on the transfer mold to perform a second extrusion molding.

[0009] According to the optimized solution, the transfer mold is fixed on the upper surface of the movable plate, the cleaning mechanism is a cantilever cleaning mechanism, and the suspended end of the cantilever cleaning mechanism is located at one side of the pulp box.

[0010] An optimized solution, the cleaning mechanism includes two cantilever blocks which are parallel to each other and one end of which is fixed on the opposite sides of the transfer mold, and a water collecting bucket whose two ends are respectively connected to the suspended ends of the two cantilever blocks. At least one horizontally arranged water outlet pipe is provided in the water collecting bucket and the water outlet pipe is arranged along the length direction of the water collecting bucket. One end of the water outlet pipe is closed, and the other end passes through the water collecting bucket and is connected to the high-pressure water supply terminal. A plurality of discretely arranged and vertically arranged water nozzles are provided on the upper side of the water outlet pipe.

[0011] An optimized solution is as follows: there are two water outlet pipes which are parallel to each other, and two rectangular end tubes whose two ends are closed, one end of the two water outlet pipes facing each other is connected to a rectangular end tube, and the other end of the two water outlet pipes facing each other is connected to another rectangular end tube, one of the rectangular end tubes is connected to a water inlet pipe, one of the rectangular end tubes is fixed to the upper surface of the suspended end of a cantilever block, and the other rectangular end tube is fixed to the upper surface of the suspended end of another cantilever block.

[0012] An optimized solution, the translation drive mechanism includes positioning plates fixed on both sides of the middle part of the frame, the two positioning plates are located on the same horizontal plane, guide rails and a plurality of sliders connected to each guide rail are provided on the upper surface of each positioning plate, the sliders are fixed on the lower surface of the moving plate, and limiting stops are provided at both ends of at least one positioning plate, the moving plate is located between the two limiting stops and the distance between the two limiting stops is greater than the length of the moving plate, and a servo translation drive device connected to the moving plate is provided on the positioning plate.

[0013] According to the optimized solution, a limiting stop point is respectively arranged at both ends of the upper surface of each positioning plate, and the limiting stop points arranged on each positioning plate are respectively located on the inner side of the guide rail arranged on the positioning plate.

[0014] An optimized solution is to provide two overflow baffles which are parallel to each other and arranged vertically in the pulp box. The vertical height of the overflow baffles is lower than the depth of the pulp box and the two overflow baffles divide the interior of the pulp box into a large central chamber and overflow chambers located on both sides of the large chamber. The pulp in the large chamber overflows into the overflow chamber through the top of the overflow baffle. One of the positioning plates is located on the upper side of one overflow chamber, and the other positioning plate is located on the upper side of the other overflow chamber.

[0015] According to the optimized solution, the inner side surfaces of the two positioning plates facing each other are flush with the inner surfaces of the two overflow baffles facing each other.

[0016] According to the optimized solution, each overflow chamber is connected to an overflow return pipe, and the large chamber is connected to a pulp inlet pipe and a discharge pipe. The overflow return pipe, pulp inlet pipe and discharge pipe are respectively connected to a circumferential surface of the pulp box.

[0017] Optimization scheme, the lifting type reverse suction slurry mechanism includes a slurry suction fixing plate fixed on the top of the frame, and a reverse suction slurry mold is connected to the bottom of the slurry suction fixing plate through a first guide structure, and the reverse suction slurry mold is connected to a servo motor through a screw transmission structure fixed on the slurry suction fixing plate.

[0018] The optimized solution is that the lifting drive mechanism includes an extrusion fixed plate fixed on the top of the frame, the extrusion upper die is connected to the extrusion fixed plate through a second guide structure and the extrusion upper die is located below the extrusion fixed plate, and the extrusion upper die is connected to servo motor 2 through a screw transmission structure 2 fixed on the upper surface of the extrusion fixed plate.

[0019] Optimization solution: the inverted suction slurry mold is an inverted suction slurry mold with heating function; the extrusion upper mold is an extrusion upper mold with heating function; and the transfer mold is a transfer mold with heating function.

[0020] The method of using the inverted suction slurry forming machine includes the following steps:

[0021] S1. Injecting pulp slurry into the large chamber of the pulp box;

[0022] S2, the inverted slurry mold extends downward into the large chamber to vacuum slurry, and then leaves the large chamber upward after slurry absorption;

[0023] S3, the transfer mold is translated to the bottom of the inverted slurry mold and fixed, the inverted slurry mold is downward so that the transfer mold and the inverted slurry mold perform the first extrusion molding on the adsorbed slurry and produce the first molded blank, the inverted slurry mold loses vacuum and the first molded blank is retained on the transfer mold;

[0024] S4, the inverted suction pulp mold is reset upward and the transfer mold is moved to just below the extrusion upper mold. When the transfer mold moves to just below the extrusion upper mold, the cleaning mechanism sprays water upward to clean the inverted suction pulp mold. The extrusion upper mold is driven downward by the lifting drive mechanism, and the extrusion upper mold and the transfer mold perform a second extrusion molding on the first molded blank. The extrusion upper mold is reset upward, that is, a paper product is produced on the transfer mold.

[0025] Preferably, in the above-mentioned step S3, the transfer mold is a transfer mold with a heating function, and the inverted suction slurry mold is a inverted suction slurry mold with a heating function. The transfer mold with a heating function and the inverted suction slurry mold with a heating function can heat and dry the slurry and the first molded blank after molding at the same time.

[0026] Preferably, the extrusion upper die is an extrusion upper die with a heating function, and the extrusion upper die with a heating function and the transfer die with a heating function heat and dry the first formed blank at the same time.

[0027] Compared with existing technologies, the advantages of the reverse suction pulp production line for paper products production are:

[0028] By performing primary and secondary extrusion heating on the forming machine, paper products with thinner walls can be directly obtained. Of course, for some thicker paper products, it can not only shorten the subsequent production cycle, but also improve production efficiency, invisibly reduce production costs, and better meet the current production requirements of enterprises.

[0029] By using the reverse suction slurry method to absorb slurry, the height of the equipment in the vertical direction can be reduced, and the transfer mold can be used to form the first extrusion process with the reverse suction slurry mold. During the extrusion process, the pulp material can be extruded, heated and dried. After being heated by the first extrusion, it is moved to the secondary extrusion position, and the transfer mold and the extrusion upper mold are used to perform the second extrusion, heating and drying. This not only enriches the use function of the molding machine, but also further reduces the size of the molding machine and improves the production and processing efficiency.

[0030] The equipment has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the side structure of the molding machine provided by the present invention.

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear side of the molding machine provided by the present invention.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the molding machine provided by the present invention from another viewing angle.

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the front side of the molding machine provided by the present invention.

[0035] Figure 5 yes Figure 2 The enlarged structural diagram at a in FIG.

[0036] Figure 6 yes Figure 3 The enlarged structural diagram at point b in FIG.

[0037] Figure 7 It is a simplified distribution diagram of a production line corresponding to a robot and a reverse suction slurry forming machine provided by the present invention.

[0038] Figure 8 It is a simplified distribution diagram of a production line corresponding to a robot and two reverse suction slurry forming machines provided by the present invention.

[0039] Fig. 9 The present invention provides a simplified distribution diagram of a production line of a robot, a reverse suction slurry forming machine and a hot press.

[0040] Fig.10 The present invention provides a simplified distribution diagram of a production line of a robot, a reverse suction slurry forming machine and two hot presses.

[0041] Fig.11 This Fig. 9 Schematic diagram of the simple distribution of the symmetrical production line.

[0042] In the figure, there are reverse suction slurry forming machine A, frame 1, positioning plate 10, guide rail 11, slider 12, limit stop point 13, servo translation drive device 14, slurry box 2, overflow baffle 20, overflow return pipe 21, slurry inlet pipe 22, discharge pipe 23, lifting reverse suction slurry mechanism 3, slurry suction fixing plate 30, reverse suction slurry mold 31, servo motor 1 32, transfer mold 4, movable plate 40, cleaning mechanism 5, cantilever block 50, water collecting bucket 51, water outlet pipe 52, water nozzle 53, rectangular end pipe 54, water inlet pipe 55, extrusion upper mold 6, extrusion fixing plate 61, servo motor 2 62, robot 7, transfer mold 70, hot press 8. DETAILED DESCRIPTION

[0043] The following are specific embodiments of the invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Embodiment 1

[0044] like Figure 7 and Figure 8 As shown, the inverted suction pulp production line for paper product production includes at least one inverted suction pulp forming machine A that can perform primary extrusion heating and secondary extrusion heating in sequence, and also includes at least one robot 7 and a transfer mold 70 connected to each robot 7. The robot 7 drives the transfer mold 70 to obtain the paper product after secondary extrusion heating and transfer it to the outside of the inverted suction pulp forming machine A.

[0045] Of course, the number of the reverse suction slurry forming machines A and the number of the robots 7 can be the same or different. For example, the number of the reverse suction slurry forming machines A is greater than the number of the robots 7.

[0046] The distribution is as follows:

[0047] like Figure 7 As shown, one inverted suction slurry forming machine A corresponds to one robot 7;

[0048] like Figure 8 As shown, 2-3 inverted suction slurry forming machines A correspond to one robot 7.

[0049] 4-6 inverted suction slurry forming machines A correspond to 2-3 robots 7.

[0050] A larger number of inverted suction slurry forming machines A and robots 7 are not further described in this embodiment.

[0051] like Figure 1 As shown, the inverted suction slurry forming machine A comprises a frame 1, which is a frame-type frame made of metal pipes.

[0052] like Figure 2 As shown, a pulp box 2 is provided on the frame 1 and an opening is provided on the top of the pulp box 2. Preferably, the pulp box 2 in the present application is arranged at the lower rear end of the frame 1. Lowering the position of the pulp box 2 can maximize the use of the existing internal space of the frame.

[0053] Secondly, two overflow baffles 20 which are parallel to each other and arranged vertically are provided in the pulp box 2. The vertical height of the overflow baffle 20 is lower than the depth of the pulp box 2 and the two overflow baffles divide the interior of the pulp box 2 into a large central chamber and overflow chambers located on both sides of the large chamber. The large chamber is a square chamber, and the overflow chambers on both sides are rectangular chambers. The square chamber can facilitate the insertion of the inverted suction pulp mold to absorb the pulp, and the designed overflow chamber can overflow the overflowed pulp when the inverted suction pulp mold is extended into the large chamber, avoiding overflow to the ground and polluting the working environment. At the same time, the overflow chamber can recycle the overflowed pulp, which is energy-saving and environmentally friendly. At the same time, an inner convex edge is provided at the open mouth of the pulp box 2, and the inner convex edge can form a barrier to limit the shaking pulp.

[0054] The lower side of the overflow baffle 20 is sealed to the inner bottom of the pulp box 2, and the two ends of the overflow baffle 20 are sealed to the inner surface of the pulp box 2. They can be welded or sealed with sealing strips, and then the overflow baffle 20 is fixed with bolts.

[0055] Secondly, the overflow baffle 20 is made of stainless steel plate, and at the same time, the pulp box 2 can also be made of stainless steel material to facilitate welding of the same material.

[0056] The pulp in the large chamber overflows into the overflow chamber through the top of the overflow partition 20, and this overflow can form the recycling of the pulp slurry.

[0057] Each overflow chamber is connected to an overflow return pipe 21, the large chamber is connected to a pulp inlet pipe 22 and a discharge pipe 23, and the overflow return pipe 21 is connected to a recovery pipe, which recovers pulp slurry from the open port to the pulp box.

[0058] Of course, the recovery pipe can be connected in parallel to the slurry inlet pipe 22, and then a control valve can be installed on the recovery pipe to control whether the slurry needs to be recovered.

[0059] The overflow return pipe 21, the slurry inlet pipe 22 and the discharge pipe 23 are respectively connected to a surface of the circumference of the slurry box 2. In the most preferred solution, the overflow return pipe 21, the slurry inlet pipe 22 and the discharge pipe 23 are respectively connected to the surface of the rear side of the slurry box 2. This structure can centrally arrange the pipelines to the greatest extent.

[0060] like Figure 1 and Figure 3 As shown, a lifting type reverse suction slurry mechanism 3 is provided on the frame 1 and is located above the opening of the slurry box 2. The lifting type reverse suction slurry mechanism 3 extends into the slurry box to absorb the slurry. Specifically, the lifting type reverse suction slurry mechanism 3 includes a slurry suction fixing plate 30 fixed on the top of the frame 1, and a reverse suction slurry mold 31 is connected to the lower side of the slurry suction fixing plate 30 through a first guide structure. The reverse suction slurry mold 31 is connected to a servo motor 32 through a screw transmission structure 1 fixed on the slurry suction fixing plate 30.

[0061] The first guide structure includes four guide screw sleeves 1 fixed on the slurry suction fixing plate 30, and a guide rod 1 inserted in each guide screw sleeve 1, the lower end of the guide rod 1 is connected to the inverted suction slurry mold 31, the four guide screw sleeves 1 are distributed in a rectangular shape, and the screw transmission structure 1 is located in the central area of ​​the four guide screw sleeves 1. Furthermore, the screw transmission structure 1 includes a fixed cylinder fixed on the upper surface of the slurry suction fixing plate 30, and a screw sleeve arranged in the fixed cylinder and threadedly connected to the fixed cylinder, and a screw rod inserted in the screw sleeve, the lower end of the screw rod passes through the slurry suction fixing plate 30 and is rotatably connected to the inverted suction slurry mold 31, for example, the rotatable connection is achieved by using a bearing.

[0062] like Figure 2 and Figure 4 As shown, a transfer mold 4 is also provided on the frame 1 which is horizontally slidably connected to the frame 1 and is connected to the translation drive mechanism. The transfer mold 4 is fixed on the upper surface of the movable plate 40. The translation drive mechanism drives the transfer mold 4 to move below the lifting type inverted suction slurry mechanism 3 and the lifting type inverted suction slurry mechanism 3 descends so that the transfer mold 4 and the lifting type inverted suction slurry mechanism 3 perform the first extrusion molding on the adsorbed slurry and produce the first molded blank.

[0063] Specifically, the translation drive mechanism includes a positioning plate 10 fixed on both sides of the middle part of the frame 1. The two positioning plates 10 are located on the same horizontal plane. A space is reserved between the two positioning plates 10 for the lifting type reverse suction slurry mechanism to descend into. A guide rail 11 is provided on the upper surface of each positioning plate 10. Specifically, a strip positioning block is provided on the upper surface of each positioning plate 10. The strip positioning blocks are distributed along the length direction of the positioning plate 10. At the same time, the strip positioning blocks are fixed to the positioning plate 10 by bolts.

[0064] Secondly, the strip-shaped positioning block is located in the middle of the upper surface of the positioning plate 10, and the transverse cross-section of the strip-shaped positioning block is an inverted T-shaped structure to facilitate installation and fixation.

[0065] And a plurality of sliders 12 connected to each guide rail 11, the sliders 12 are fixed on the lower surface of the movable plate 40, and limiting stops 13 are respectively provided at both ends of at least one positioning plate 10, the movable plate 40 is located between the two limiting stops 13 and the distance between the two limiting stops 13 is greater than the length of the movable plate 40, and a servo translation drive device 14 connected to the movable plate 40 is provided on the positioning plate 10.

[0066] The servo translation drive device 14 includes two driving screws and a driving nut sleeve mounted on each driving screw, one of which is installed on a positioning plate 10, and the other driving screw is installed on another positioning plate 10, one of which is fixed on one side of the lower surface of the moving plate 40, and the other is fixed on the other side of the lower surface of the moving plate 40, and the one side of the lower surface of the moving plate 40 and the other side of the lower surface of the moving plate 40 are relatively distributed.

[0067] Each driving screw rod is connected to the driving motor through a belt transmission structure. The belt transmission structure is a synchronous belt transmission structure. A rectangular hole 100 is provided at one end of each positioning plate 10 for the belt transmission structure to pass through.

[0068] A limit stop point 13 is respectively provided at both ends of the upper surface of each positioning plate 10, and the limit stop points 13 provided on each positioning plate 10 are respectively located on the inner side of the guide rail 11 provided on the positioning plate 10. The four limit stop points 13 can form two groups of limit detection, which can ensure the reliability of the machine operation.

[0069] Each limit stop point 13 includes an L-shaped mounting block and a position sensor mounted on the L-shaped mounting block, and the position sensors are distributed horizontally.

[0070] One of the positioning plates 10 is located on the upper side of one overflow chamber, and the other positioning plate 10 is located on the upper side of the other overflow chamber.

[0071] In addition, the inner sides of the two positioning plates 10 facing each other are flush with the inner surfaces of the two overflow baffles 20. The flush design can form a barrier to prevent the overflow of the pulp from forming large waves and splashing outside the pulp box.

[0072] like Figure 1-3 and Figure 5As shown, a cleaning mechanism 5 is connected to the transfer mold 4 and can clean the lifting type inverted suction slurry mechanism 3 before the transfer mold 4 moves to the lifting type inverted suction slurry mechanism 3. Preferably, the cleaning mechanism 5 of this embodiment is a cantilever cleaning mechanism and the suspended end of the cantilever cleaning mechanism is located on one side of the slurry box 2.

[0073] The cantilever cleaning mechanism can effectively utilize the existing space and further make the machine structure more compact.

[0074] Specifically, Figure 5 and Figure 6 As shown, the cleaning mechanism 5 of this embodiment includes two cantilever blocks 50 which are parallel to each other and one end of which is fixed on the opposite sides of the transfer mold 4, and a water collecting bucket 51 whose two ends are respectively connected to the suspended ends of the two cantilever blocks 50. The water collecting bucket 51 discharges and recycles the collected cleaning materials through the discharge pipe body at the bottom.

[0075] The water collecting bucket 51 is a rectangular structure, and the bottom of the water collecting bucket 51 is provided with a bottom surface 1, and inclined diversion slopes are arranged on both sides of the bottom surface 1. The inclined diversion slopes are formed by connecting multiple sections of inclined surfaces connected in sequence. The inclined slopes can form a diversion for the collected cleaning materials to avoid them being retained on the inner wall.

[0076] At least one horizontally arranged water outlet pipe 52 is provided in the water collecting bucket 51 and the water outlet pipe 52 is arranged along the length direction of the water collecting bucket 51. The water outlet pipe 52 is located above the bottom surface and at half the depth of the water collecting bucket 51. One end of the water outlet pipe 52 is closed, and the other end passes through the water collecting bucket 51 and is connected to the high-pressure water supply terminal. The high-pressure water supply terminal includes a water supply pipe and a high-pressure pump connected to the water supply pipe, and the water supply pipe is connected to a water source box. A plurality of discretely arranged and vertically arranged water nozzles 53 are provided on the upper side of the water outlet pipe 52.

[0077] The water spray nozzle 53 may be either a high-pressure nozzle or a low-pressure nozzle.

[0078] There are two water outlet pipes 52 which are parallel to each other, and two rectangular end pipes and both ends of the rectangular end pipe 54 are closed. One end of the two water outlet pipes 52 facing each other is connected to a rectangular end pipe 54, and the other end of the two water outlet pipes 52 facing each other is connected to another rectangular end pipe, one of the rectangular end pipes is connected to a water inlet pipe 55, one of the rectangular end pipes is fixed to the upper surface of the suspended end of a cantilever block 50, and the other rectangular end pipe is fixed to the upper surface of the suspended end of another cantilever block 50.

[0079] A positioning plane is provided on the upper surface of the suspended end of the cantilever block 50 , and the rectangular end tube is fixed on the positioning plane, which can ensure the stability of the installation and fixation of the rectangular end tube, and can further improve the reliability of the fixation of the water collecting bucket 51 .

[0080] This structure can improve the stability of the overall structure, facilitate the installation, manufacturing and processing of the overall structure, and further improve the cleaning efficiency.

[0081] like Figure 2 and Figure 3 As shown, an extrusion upper mold 6 is also provided on the frame 1 and is connected to a lifting drive mechanism. When the transfer mold 4 moves below the extrusion upper mold 6, the lifting drive mechanism drives the extrusion upper mold 6 to descend and contact the first molded blank adsorbed onto the transfer mold 4 to perform a second extrusion molding.

[0082] Specifically, the lifting drive mechanism includes an extrusion fixed plate 61 fixed on the top of the frame 1, the extrusion upper mold 6 is connected to the extrusion fixed plate 61 through a second guide structure and the extrusion upper mold 6 is located below the extrusion fixed plate 61, and the extrusion upper mold 6 is connected to the servo motor 2 62 through a screw transmission structure 2 fixed on the upper surface of the extrusion fixed plate 61.

[0083] The structure of the screw transmission structure 2 is the same as that of the screw transmission structure 1.

[0084] Furthermore, the extrusion upper mold 6 is an extrusion upper mold with a heating function; the transfer mold 4 is a transfer mold with a heating function.

[0085] The heating function is realized by electric heating or steam heating, for example, electric heating rods and / or steam heating pipes.

[0086] like Figure 1-6 As shown, the paper product container is formed using the above forming machine, and the forming method includes the following steps:

[0087] S1. Injecting pulp slurry into the large chamber of the pulp box;

[0088] S2, the inverted slurry mold 31 extends downward into the large chamber to vacuum slurry, and then leaves the large chamber upward after slurry absorption;

[0089] S3, the transfer mold 4 is translated to the bottom of the reverse suction slurry mold 31 and fixed, the reverse suction slurry mold 31 is downward so that the transfer mold 4 and the reverse suction slurry mold 31 perform the first extrusion molding on the adsorbed slurry and obtain the first molded blank, the reverse suction slurry mold 31 loses vacuum and the first molded blank is retained on the transfer mold 4;

[0090] S4, the inverted suction pulp mold 31 is reset upward and the transfer mold 4 is moved to directly below the extrusion upper mold 6. When the transfer mold 4 moves to directly below the extrusion upper mold 6, the cleaning mechanism sprays water upward to clean the inverted suction pulp mold 31. The extrusion upper mold 6 is driven downward by the lifting drive mechanism, and the extrusion upper mold 6 and the transfer mold 4 perform a second extrusion molding on the first molded blank. The extrusion upper mold 6 is reset upward, that is, a paper product is produced on the transfer mold 4.

[0091] In the above step S3, the inverted suction slurry mold 31 is an inverted suction slurry mold with a heating function, and the transfer mold with a heating function heats and dries the slurry and the first molded blank after molding.

[0092] The extrusion upper die 6 is an extrusion upper die with a heating function. The extrusion upper die with a heating function and the transfer die with a heating function heat and dry the first formed blank at the same time. Embodiment 2

[0093] The working principle of this embodiment is the same as that of the first embodiment, except that:

[0094] like Figure 9-11 As shown, several heat presses 8 are also included. The robot 7 drives the transfer mold 70 to obtain the paper products after secondary extrusion and heating and transfer them to the heat press 8.

[0095] For example 1, one robot corresponds to one suction slurry forming machine A and two hot presses 8. The suction slurry forming machine A and the hot press 8 are distributed in an L shape, and the robot is located at the L-shaped corner.

[0096] Example 2: An example 1 is formed symmetrically with example 1 as a unit, that is, two symmetrical units are formed by two examples 1. Embodiment 3

[0097] The working principle of this embodiment is the same as that of the first embodiment, except that the inverted suction slurry mold 31 of this embodiment is an inverted suction slurry mold with a heating function.

[0098] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A reverse suction pulp production line for paper product production, characterized in that: The invention comprises at least one suction pulp forming machine (A) which performs primary extrusion heating and secondary extrusion heating in sequence, and also comprises at least one robot (7) and a transfer mold (70) connected to each robot (7), wherein the robot (7) drives the transfer mold (70) to obtain the paper product after the secondary extrusion heating and transfer it to the outside of the suction pulp forming machine (A); The reverse suction pulp forming machine (A) comprises a frame (1), a pulp box (2) is provided on the frame (1), and the top of the pulp box (2) is provided with an opening, a lifting reverse suction pulp mechanism (3) is provided on the frame (1) and is located above the opening of the pulp box (2), and the lifting reverse suction pulp mechanism (3) extends into the pulp box to absorb pulp, and a transfer mold (4) is also provided on the frame (1) and is horizontally slidably connected to the frame (1), and the transfer mold (4) is connected to a translation drive mechanism, and the translation drive mechanism drives the transfer mold (4) to move to the lifting reverse suction pulp mechanism (3) and the lifting type reverse suction slurry mechanism (3) descends, so that the transfer mold (4) and the lifting type reverse suction slurry mechanism (3) perform a first extrusion molding on the adsorbed slurry and produce a first molded blank. An extrusion upper mold (6) is also provided on the frame (1), and the extrusion upper mold (6) is connected to the lifting drive mechanism. When the transfer mold (4) moves to below the extrusion upper mold (6), the lifting drive mechanism drives the extrusion upper mold (6) to descend and contact the first molded blank adsorbed on the transfer mold (4), thereby performing a second extrusion molding. The extrusion upper die (6) is an extrusion upper die with a heating function; the transfer die (4) is a transfer die with a heating function; The lifting type reverse suction slurry mechanism (3) comprises a slurry suction fixing plate (30) fixed on the top of the frame (1), and a reverse suction slurry mold (31) is connected to the lower part of the slurry suction fixing plate (30) via a first guide structure, wherein the reverse suction slurry mold (31) is a reverse suction slurry mold with a heating function, and the reverse suction slurry mold (31) is connected to a servo motor (32) via a screw transmission structure 1 fixed on the slurry suction fixing plate (30); The lifting drive mechanism comprises an extrusion fixing plate (61) fixed on the top of the frame (1); an extrusion upper die (6) is connected to the extrusion fixing plate (61) via a second guide structure and the extrusion upper die (6) is located below the extrusion fixing plate (61); and the extrusion upper die (6) is connected to a servo motor 2 (62) via a second screw transmission structure fixed on the upper surface of the extrusion fixing plate (61).

2. The inverted suction pulp production line for paper product production according to claim 1, characterized in that: It also includes a plurality of hot presses (8), and the robot (7) drives the transfer mold (70) to obtain the paper product after secondary extrusion and heating and transfer it to the hot press (8).

3. The inverted suction pulp production line for paper product production according to claim 1, characterized in that: A cleaning mechanism (5) is connected to the transfer mold (4) and is capable of cleaning the lifting type reverse suction slurry mechanism (3) before the transfer mold (4) moves to the lifting type reverse suction slurry mechanism (3).

4. The inverted suction pulp production line for paper product production according to claim 3, characterized in that: The transfer mold (4) is fixed on the upper surface of the movable plate (40); the cleaning mechanism (5) is a cantilever cleaning mechanism, and the suspended end of the cantilever cleaning mechanism is located on one side of the pulp box (2).

5. The inverted suction pulp production line for paper product production according to claim 4, characterized in that: The cleaning mechanism (5) comprises two cantilever blocks (50) which are parallel to each other and one end of which is fixed to opposite sides of the transfer mold (4), and a water collecting bucket (51) whose two ends are respectively connected to the suspended ends of the two cantilever blocks (50). At least one horizontally arranged water outlet pipe (52) is provided in the water collecting bucket (51), and the water outlet pipe (52) is arranged along the length direction of the water collecting bucket (51). One end of the water outlet pipe (52) is closed, and the other end passes through the water collecting bucket (51) and is connected to the high-pressure water supply terminal. A plurality of discretely arranged and vertically arranged water spray nozzles (53) are provided on the upper side of the water outlet pipe (52).

6. The inverted suction pulp production line for paper product production according to claim 5, characterized in that: There are two water outlet pipes (52) which are parallel to each other, and two rectangular end pipes, and both ends of the rectangular end pipe (54) are closed; one end of the two water outlet pipes (52) facing each other is connected to a rectangular end pipe (54); the other ends of the two water outlet pipes (52) facing each other are connected to another rectangular end pipe; one of the rectangular end pipes is connected to a water inlet pipe (55); one of the rectangular end pipes is fixed to the upper surface of the suspended end of a cantilever block (50); and the other rectangular end pipe is fixed to the upper surface of the suspended end of another cantilever block (50).

7. The inverted suction pulp production line for paper product production according to claim 1, characterized in that: The translation drive mechanism comprises positioning plates (10) fixed on both sides of the middle of the frame (1), the two positioning plates (10) being located on the same horizontal plane, a guide rail (11) being provided on the upper surface of each positioning plate (10), and a plurality of sliders (12) connected to each guide rail (11), the sliders (12) being fixed on the lower surface of the moving plate (40), limiting stop points (13) being provided at both ends of at least one positioning plate (10), the moving plate (40) being located between the two limiting stop points (13) and the distance between the two limiting stop points (13) being greater than the length of the moving plate (40), and a servo translation drive device (14) being provided on the positioning plate (10) and connected to the moving plate (40).

8. The inverted suction pulp production line for paper product production according to claim 7, characterized in that: A limiting stop point (13) is respectively provided at both ends of the upper surface of each positioning plate (10), and the limiting stop point (13) provided on each positioning plate (10) is respectively located on the inner side of a guide rail (11) provided on the positioning plate (10).

9. The inverted suction pulp production line for paper product production according to claim 7, characterized in that: Two overflow baffles (20) parallel to each other and arranged vertically are arranged in the pulp box (2); the vertical height of the overflow baffles (20) is lower than the depth of the pulp box (2); and the two overflow baffles divide the interior of the pulp box (2) into a large chamber in the middle and overflow chambers located on both sides of the large chamber; pulp in the large chamber overflows into the overflow chambers through the top of the overflow baffles (20); one of the positioning plates (10) is located on the upper side of one overflow chamber, and the other positioning plate (10) is located on the upper side of another overflow chamber.

10. The inverted suction pulp production line for paper product production according to claim 9, characterized in that: The inner side surfaces facing each other of the two positioning plates (10) are flush with the inner surfaces facing each other of the two overflow partitions (20); each overflow chamber is connected to an overflow return pipe (21), and the large chamber is connected to a pulp inlet pipe (22) and a discharge pipe (23); the overflow return pipe (21), the pulp inlet pipe (22) and the discharge pipe (23) are respectively connected to a circumferential surface of the pulp box (2).

Images