An edge burr treatment device for paper plate production

Abstract

This application relates to a device for processing burrs on the edge of a paper dinner plate during production, including a frame, a slurry tank arranged on the frame and having an open upper part, a lower die base slidably connected vertically to the bottom wall of the slurry tank, and an upper die base slidably connected vertically to the frame and located above the lower die base. A plurality of forming cavities for forming paper dinner plates are formed between the inner cavities of the lower die base and the upper die base. The bottom wall of the forming cavity has water-permeable pores. The slurry tank is provided with a spray rack, which includes a pair of movable vertical plates respectively located on both sides of the lower die base / upper die base and slidably connected horizontally to the slurry tank, a water delivery member fixedly connected between the two movable vertical plates, and a plurality of nozzles connected to the lower end surface of the water delivery member for spraying a plurality of paper dinner plates on the lower die base. The water delivery member is located between the upper die base and the lower die base after demoulding. The water delivery member has a water delivery cavity, and the nozzles are communicated with the water delivery cavity. This application has the effect of improving the production efficiency of paper dinner plates.

Description

Technical Field

[0001] This application relates to the technical field of paper plate production equipment, and in particular to a device for processing edge burrs in paper plate production. Background Art

[0002] In the production of paper plates (such as paper plates for holding cakes), through molding in a formed pulp mold, during the pulp molding process, it is inevitable to form a tiny gap between the upper mold and the lower mold, and part of the pulp will seep into this gap, resulting in burrs on the edges of the formed paper plate finished products, forming a rough edge. Therefore, after demolding, mechanical cutting and deburring operations are carried out, which increases the process consumption and reduces the production efficiency. Therefore, further improvement is needed. Summary of the Invention

[0003] In order to improve the production efficiency of paper plates, this application provides a device for processing edge burrs in paper plate production.

[0004] A device for processing edge burrs in paper plate production provided by this application adopts the following technical solutions:

[0005] A device for processing edge burrs in paper plate production includes a frame, a slurry tank arranged on the frame and having an open upper part, a lower mold base slidably connected vertically to the bottom wall of the slurry tank, and an upper mold base slidably connected vertically to the frame and located above the lower mold base. A plurality of forming cavities for forming paper plates are formed between the inner cavities of the lower mold base and the upper mold base. The bottom wall of the forming cavity has water-permeable pores. The slurry tank is provided with a spraying frame. The spraying frame includes a pair of movable vertical plates respectively located on both sides of the lower mold base / upper mold base and slidably connected horizontally to the slurry tank, a water delivery member fixedly connected between the two movable vertical plates, and a plurality of nozzles connected to the lower end surface of the water delivery member for spraying a plurality of paper plates on the lower mold base. The water delivery member is located between the upper mold base and the lower mold base after demolding. The water delivery member has a water delivery cavity, and the nozzles are communicated with the water delivery cavity.

[0006] By adopting the above technical solutions, normally, the spraying frame is located on one side of the lower mold base. The lower mold base first moves down below the slurry level so that the forming cavity of the lower mold base is filled with pulp and then rises above the slurry level. Subsequently, the upper mold base moves down for mold closing and shaping. The excess water is discharged from the water-permeable pores. After the paper plates are batch-formed, the upper mold base moves up and resets and separates from the lower mold base. Then, the movable vertical plates slide horizontally, driving the water delivery member to move between the upper mold base and the lower mold base. The nozzles can spray a plurality of paper plates on the lower mold base. The edge burrs of the paper plates are wetted and droop or fall off, achieving the effect of simply removing burrs, and there is no need to use mechanical means to perform cutting and deburring operations on the paper plates subsequently, improving the production efficiency of paper plates.

[0007] Preferably, the water delivery member is a water delivery plate, and a plurality of nozzles are spaced along the length direction of the water delivery plate to form a row. At least two rows of nozzles are provided on the lower end surface of the water delivery plate, and adjacent two rows of nozzles are staggered.

[0008] By adopting the above technical solution, at least two rows of staggered nozzles are provided on the lower end surface of the water delivery plate. This structure can ensure that during the spraying operation, water can more evenly cover the edges of multiple paper dinner plates on the lower die base, effectively improving the effect of burrs being wetted and dropping or falling off, thereby further enhancing the efficiency and quality of burr treatment.

[0009] Preferably, the nozzle is rotatably connected to the water delivery member about its own axis, and a first linkage assembly for driving the nozzle to rotate is provided between the water delivery member and the slurry tank.

[0010] By adopting the above technical solution, the nozzle can rotate about its own axis, so as to change the direction and angle of the water flow during the spraying operation, enabling the water flow to more fully cover the burr area on the edge of the paper dinner plate and improving the effect of burr treatment. At the same time, the setting of the first linkage assembly realizes the automation of the nozzle rotation, without the need for an additional power source, reducing the complexity and energy consumption of the equipment, and enhancing the overall efficiency and reliability of the device.

[0011] Preferably, the first linkage assembly includes a first rack fixedly connected to the slurry tank and located below one side of the water delivery member, a first gear coaxially and fixedly sleeved on the nozzle, and a second gear rotatably connected to the water delivery member and meshing between the two first gears. The outermost first gear meshes with the first rack.

[0012] By adopting the above technical solution, when the spraying frame moves horizontally, the meshing of the first rack and the first gear can drive the nozzle to rotate about its own axis, thereby changing the water outlet direction of the nozzle. This dynamic adjustment enables the water flow to impact the edge of the paper dinner plate at different angles, enhancing the cleaning effect on burrs and avoiding the cleaning blind area caused by a fixed spraying angle, further improving the efficiency and quality of burr treatment.

[0013] Preferably, the slurry tank is provided with a liquid supply mechanism for supplying water to the water delivery cavity.

[0014] By adopting the above technical solution, the liquid supply mechanism can provide a stable water source supply for the water delivery cavity, ensuring that the nozzle has continuous and sufficient water flow during the spraying operation on the paper dinner plate, and improving the effect and efficiency of burr treatment.

[0015] Preferably, the liquid supply mechanism includes a water storage tank fixedly connected to the outer wall of the slurry tank, a water supply pipe with one end communicating with the water delivery cavity and the other end communicating with the water storage tank, and a liquid supply pump provided on the water supply pipe and fixedly connected to the water storage tank.

[0016] By adopting the above technical solution, the liquid supply mechanism can store water source through the water storage tank, and use the liquid supply pump to transport the water in the water storage tank to the water delivery cavity through the water supply pipe, so as to provide a stable spraying water source for the nozzle.

[0017] Preferably, the liquid supply mechanism includes a guide box fixedly penetrating through the lower part of the side wall of the slurry tank, a piston plate slidably and sealingly connected to the inner wall of the guide box and dividing the inner cavity of the guide box into a first chamber and a second chamber, a first one-way feeding pipe fixedly connected to the piston plate and slidably penetrating through the guide box and located at one end of the slurry tank, a vertical rod fixedly connected to the outer end of the first one-way feeding pipe located outside the guide box, and a first one-way discharging pipe fixedly penetrating through the guide box and having one end communicated with the first chamber. The upper end of the vertical rod is fixedly connected to the movable vertical plate. One-way valves are arranged on both the first one-way feeding pipe and the first one-way discharging pipe. The first one-way feeding pipe penetrates through the piston plate so that the first one-way feeding pipe is communicated with the first chamber. A filter screen that only allows water to pass through is arranged at the feeding port of the first one-way feeding pipe. The other end of the first one-way discharging pipe is communicated with the water delivery cavity.

[0018] By adopting the above technical solution, when the movable vertical plate slides horizontally, it drives the vertical rod to move, and pushes the piston plate to slide in the guide box through the first one-way feeding pipe, so that the volumes of the first chamber and the second chamber change alternately. When the volume of the first chamber increases, the first one-way feeding pipe sucks the water in the slurry tank into the first chamber, and at the same time the first one-way discharging pipe prevents the water from flowing back; when the volume of the first chamber decreases, the first one-way feeding pipe prevents the water from flowing back, and the piston plate presses the water in the first chamber into the water delivery cavity through the first one-way discharging pipe and sprays it out through the nozzle for spraying operation. The automatic water supply function is realized by the horizontal reciprocating movement of the movable vertical plate, without an additional power device. The design of the filter screen ensures that the water quality entering the first chamber is pure, and avoids the paper pulp material sprayed from polluting the tableware products.

[0019] Preferably, a turbulator tube immersed in the slurry is arranged on the inner wall of the slurry tank. A plurality of turbulator holes communicating with the inner cavity are formed on the outer peripheral wall of the turbulator tube. The outer peripheral wall of the first one-way discharging pipe and the end face of the guide box are slidably and sealingly connected. A second one-way feeding pipe and a second one-way discharging pipe fixedly penetrating through the end face of the guide box and communicated with the second chamber are arranged. One-way valves are arranged on both the second one-way feeding pipe and the second one-way discharging pipe. The second one-way discharging pipe is communicated with the turbulator tube.

[0020] By adopting the above technical solution, when the piston plate slides in the guide box, the volumes of the first chamber and the second chamber change alternately. When the volume of the first chamber increases and the volume of the second chamber decreases, the first chamber stores water through the first one-way feed pipe, and the slurry in the second chamber flows into the turbulence pipe through the second one-way discharge pipe and sprays out from the turbulence holes, forming a turbulence effect, effectively improving the fluidity of the slurry in the slurry tank, avoiding the precipitation and stratification of the slurry during long-term static settlement, ensuring the uniform distribution of the slurry, thereby improving the forming quality of the paper dinner plate. When the volume of the first chamber decreases and the volume of the second chamber increases, the piston plate presses the water in the first chamber into the water delivery chamber through the first one-way discharge pipe and sprays out from the nozzle for spraying operation, and the slurry in the slurry tank enters the second chamber through the second one-way feed pipe for storage.

[0021] Preferably, the turbulence pipe is rotatably connected to the slurry tank, an expansion box is fixedly penetrated through the side wall of the slurry tank, and a second linkage assembly for driving the turbulence pipe to rotate around its own axis is arranged between the vertical rod and the turbulence pipe. The second linkage assembly includes a third gear coaxially and fixedly sleeved at one end of the turbulence pipe and a second rack fixedly connected to the vertical rod and slidably penetrating through the expansion box, and the third gear meshes with the second rack.

[0022] By adopting the above technical solution, the second linkage assembly drives the second rack to slide by using the horizontal movement of the vertical rod, thereby driving the third gear to rotate, and further driving the turbulence pipe to rotate around its own axis. The rotating turbulence pipe further improves the mixing effect of the slurry, without the need for an additional power source, simplifies the structure and reduces the cost.

[0023] Preferably, two sets of liquid supply mechanisms are provided, and two guide boxes are respectively arranged on two side walls of the slurry tank. When the volume of the first chamber of one of the guide boxes decreases, the volume of the first chamber of the other guide box increases, and the two first one-way feed pipes are respectively connected to both sides of the water delivery member.

[0024] By adopting the above technical solution, when the spraying frame moves in the slurry tank, the two guide boxes are respectively located on both sides of the slurry tank, and the effect of alternating liquid supply can be achieved. Specifically, as the movable vertical plate drives the water delivery member to move, the vertical rod moves synchronously, so that when the piston plate in one guide box moves to reduce the volume of the first chamber, the piston plate in the other guide box moves to increase the volume of the first chamber, thereby ensuring the continuity and stability of the liquid supply process and ensuring that the water delivery member always maintains the water spraying operation during the horizontal reciprocating movement.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Under normal conditions, the spraying rack is located on one side of the lower mold base. First, the lower mold base moves downward to a position below the pulp liquid level so that the forming cavity of the lower mold base is filled with pulp, and then it rises above the pulp liquid level. Subsequently, the upper mold base moves downward for mold closing and shaping. The excess water is discharged from the water-permeable pores. After the paper dinner plates are batch-formed, the upper mold base moves upward to reset and separates from the lower mold base. Then, the movable vertical plate slides horizontally, driving the water delivery member to move between the upper mold base and the lower mold base. The nozzle can perform a spraying operation on multiple paper dinner plates on the lower mold base, and the burrs on the edges of the paper dinner plates are wetted and droop or fall off, achieving the effect of simply removing burrs without the need for subsequent mechanical deburring operations on the cut surfaces of the paper dinner plates, thus improving the production efficiency of the paper dinner plates;

[0027] 2. The nozzle can rotate around its own axis, thereby changing the direction and angle of the water flow during the spraying operation, enabling the water flow to more fully cover the burr area on the edge of the paper dinner plate and improving the burr treatment effect. At the same time, the setting of the first linkage component realizes the automation of the nozzle rotation without the need for an additional power source, reducing the complexity and energy consumption of the equipment and enhancing the overall efficiency and reliability of the device;

[0028] 3. When the movable vertical plate slides horizontally, it drives the vertical rod to move, and through the first one-way feed pipe, it pushes the piston plate to slide in the guide box, causing the volumes of the first chamber and the second chamber to change alternately. When the volume of the first chamber increases, the first one-way feed pipe sucks the water in the pulp tank into the first chamber, and at the same time, the first one-way discharge pipe prevents the water flow from flowing back; when the volume of the first chamber decreases, the first one-way feed pipe prevents the water flow from flowing back, and the piston plate presses the water in the first chamber into the water delivery cavity through the first one-way discharge pipe and sprays it out for the spraying operation. The automatic water supply function is realized by the horizontal reciprocating movement of the movable vertical plate without the need for an additional power device. The design of the filter screen ensures the purity of the water entering the first chamber and avoids contaminating the dinner plate products with the sprayed pulp materials. Description of the Drawings

[0029] Figure 1 is the overall structural schematic diagram of an edge burr treatment device for paper dinner plate production in Embodiment 1.

[0030] Figure 2 is the internal structural schematic diagram of the pulp tank in Embodiment 1.

[0031] Figure 3 is the structural schematic diagram of the upper mold core and the lower mold core in Embodiment 1.

[0032] Figure 4 is the structural schematic diagram of the spraying rack in Embodiment 1.

[0033] Figure 5 is the structural schematic diagram of the pulp tank in Embodiment 2.

[0034] Figure 6 It is a schematic structural diagram of the first linkage assembly in Embodiment 2.

[0035] Figure 7 It is a schematic structural diagram of the liquid supply mechanism in Embodiment 3.

[0036] Figure 8 It is a schematic internal structural diagram of the guide box in Embodiment 3.

[0037] Figure 9 It is Figure 7 a partial enlarged schematic diagram at A.

[0038] Explanation of reference numerals: 1, frame; 11, guide rail; 12, horizontal cylinder; 13, first vertical cylinder; 14, adsorption mechanism; 15, second rodless cylinder; 2, slurry tank; 21, support feet; 22, second vertical cylinder; 23, bracket; 24, first rodless cylinder; 25, spoiler tube; 26, spoiler hole; 27, expansion box; 3, lower die base; 31, lower die core; 4, upper die base; 41, upper die core; 5, spray rack; 51, movable vertical plate; 52, water delivery plate; 53, nozzle; 6, liquid supply mechanism; 61, water storage tank; 62, water supply pipe; 63, liquid supply pump; 64, guide box; 641, first chamber; 642, second chamber; 643, second one-way feed pipe; 644, second one-way discharge pipe; 65, piston plate; 66, first one-way feed pipe; 67, vertical rod; 68, first one-way discharge pipe; 7, first linkage assembly; 71, first rack; 72, first gear; 73, second gear; 8, second linkage assembly; 81, third gear; 82, support rod; 83, second rack. Detailed implementation manners

[0039] The following further elaborates on this application in conjunction with the attached Figures 1-9 drawings.

[0040] Embodiment 1:

[0041] The embodiment of this application discloses an edge burr treatment device for paper dinner plate production. Referring to Figure 1 、 Figure 2 , it includes a frame 1, a slurry tank 2 that is slidably connected to the frame 1 along the length direction of the frame 1 and has an open upper part, a lower die base 3 that is slidably connected to the bottom wall of the slurry tank 2 along the vertical direction, and an upper die base 4 that is slidably connected to the frame 1 along the vertical direction and is located above the lower die base 3.

[0042] The bottom wall of the frame 1 is fixedly connected with a guide rail 11, and the lower end surface of the slurry tank 2 is fixedly connected with a support leg 21 that is slidably connected to the guide rail 11. One side of the frame 1 is fixedly connected with a horizontal air cylinder 12 for driving the slurry tank 2 to slide, and the piston rod of the horizontal air cylinder 12 is fixedly connected to the outer side wall of the slurry tank 2. One side of the upper part of the frame 1 is fixedly connected with a first vertical air cylinder 13, and the piston rod of the first vertical air cylinder 13 is fixedly connected to the upper end surface of the upper mold base 4. The lower end surface of the slurry tank 2 is fixedly connected with a second vertical air cylinder 22, and the piston rod of the second vertical air cylinder 22 passes through the bottom wall of the slurry tank 2 and is fixedly connected to the lower end surface of the lower mold base 3.

[0043] Referring to Figure 2 , Figure 3 , the upper end surface of the lower mold base 3 is fixedly connected with a lower mold core 31, and the lower end surface of the upper mold base 4 is fixedly connected with an upper mold core 41. There are a plurality of forming cavities for forming paper dinner plates formed between the lower mold core 31 and the upper mold core 41. The bottom wall of the forming cavity has water-permeable pores, and the formed paper dinner plate is in an inverted form, that is, the opening of the paper dinner plate is downward.

[0044] Referring to Figure 2 , Figure 4 , on the upper parts of the outer side walls on both sides of the slurry tank 2, support brackets 23 are fixedly connected. The support brackets 23 are slidably connected with a spraying frame 5 along the length direction of the frame 1. The spraying frame 5 includes a pair of movable vertical plates 51 respectively located on both sides of the lower mold base 3 / the upper mold base 4 and slidably connected to the slurry tank 2 along the length direction of the frame 1, a water delivery member fixedly connected between the two movable vertical plates 51, and a plurality of nozzles 53 connected to the lower end surface of the water delivery member for spraying operations on the plurality of paper dinner plates on the lower mold core 31. The water delivery member is located between the upper mold core 41 and the lower mold core 31 after demolding. The water delivery member has a water delivery cavity, and the nozzles 53 are communicated with the water delivery cavity.

[0045] Specifically, the water delivery member is a water delivery plate 52. A plurality of nozzles 53 are distributed at intervals along the length direction of the water delivery plate 52 to form a row structure. At least two rows of nozzles 53 are arranged on the lower end surface of the water delivery plate 52. In this embodiment, two rows of nozzles 53 are arranged, and adjacent two rows of nozzles 53 are arranged in a staggered manner, and the nozzles 53 are fixedly connected to the water delivery plate 52. The slurry tank 2 is provided with a liquid supply mechanism 6 for supplying water to the water delivery cavity. In this embodiment, the liquid supply mechanism 6 includes a water storage tank 61 fixedly connected to the outer wall of the slurry tank 2, a water supply pipe 62 with one end communicated with the water delivery cavity and one end communicated with the water storage tank 61, and a liquid supply pump 63 arranged on the water supply pipe 62 and fixedly connected to the water storage tank 61. The water supply pipe 62 is a flexible pipe.

[0046] The support 23 is fixedly connected with a first rodless cylinder 24. The length direction of the first rodless cylinder 24 is parallel to the length direction of the frame 1. The movable vertical plate 51 is fixedly connected to the slider of the first rodless cylinder 24. The frame 1 is slidably connected along the length direction with a suction mechanism 14 located on one side of the slurry tank 2 for sucking and transporting a plurality of paper dinner plates on the lower die core 31. The frame 1 drives the suction mechanism 14 to slide horizontally as a whole through a second rodless cylinder 15. The suction mechanism 14 is a prior art and will not be elaborated here.

[0047] The implementation principle of an edge burr treatment device for paper dinner plate production in an embodiment of the present application is as follows: Under normal conditions, the water delivery plate 52 is located on one side of the lower die base 3. The lower die base 3 and the lower die core 31 as a whole first move down below the slurry liquid level so that the forming cavity of the lower die core 31 is filled with pulp and then rise above the slurry liquid level. The lower die core 31 is always located below the water delivery plate 52. Subsequently, the upper die base 4 moves down to drive the upper die core 41 to move down for mold closing and shaping. The excess water drains out through the water permeable pores. After the paper dinner plates are batch-formed, the upper die base 4 moves up to separate the upper die core 41 from the lower die core 31, exposing the paper dinner plate products. The upper die core 41 is located above the water delivery plate 52. Then, the movable vertical plate 51 slides horizontally, driving the water delivery plate 52 to move between the upper die core 41 and the lower die core 31. And the liquid supply pump 63 is started to deliver the water in the water storage tank 61 to the water delivery cavity through the water supply pipe 62 and spray it out from the nozzle 53. The nozzle 53 sprays a plurality of paper dinner plates on the lower die base 3. The edge burrs of the paper dinner plates are wetted and droop or fall off, achieving the effect of simply removing the burrs. There is no need to use mechanical means to perform chamfering and deburring operations on the paper dinner plates subsequently, improving the production efficiency of the paper dinner plates. Finally, the horizontal cylinder 12 drives the slurry tank 2 to slide below the suction mechanism 14. After the suction cups of the suction mechanism 14 descend to suck and demold a plurality of paper dinner plates, the suction mechanism 14 slides horizontally to transport the paper dinner plates.

[0048] Embodiment 2:

[0049] The difference from Embodiment 1 is that, referring to Figure 5 、 Figure 6 ,the nozzle 53 is rotatably connected to the water delivery plate 52 around its own axis. A first linkage assembly 7 for driving the nozzle 53 to rotate is arranged between the water delivery member and the slurry tank 2. The first linkage assembly 7 includes a first rack 71 fixedly connected to the upper end face of the slurry tank 2 and located below one side of the water delivery plate 52, a first gear 72 coaxially and fixedly sleeved on the first row of nozzles 53, and a second gear 73 rotatably connected to the water delivery member and meshing between the two first gears 72. The second gear 73 is coaxially and fixedly sleeved on the second row of nozzles 53. The outermost first gear 72 meshes with the first rack 71.

[0050] The implementation principle of Embodiment 2 is as follows: When the spraying frame 5 moves horizontally, the meshing of the first rack 71 and the first gear 72 drives the second gear 73 to rotate synchronously, so as to enable the two rows of nozzles 53 to rotate around their own axes, thereby changing the water outlet direction of the nozzles 53, enabling the water flow to impact the edge of the paper dinner plate at different angles, enhancing the effect of removing burrs, and at the same time avoiding the cleaning blind area caused by a fixed spraying angle, further improving the efficiency and quality of burr treatment.

[0051] Embodiment 3:

[0052] The difference from Embodiment 1 or 2 is that with reference to Figure 7 、 Figure 8 , there are two sets of liquid supply mechanisms 6 and they are distributed diagonally along the pulp tank 2. Each set of liquid supply mechanism 6 includes a guide box 64 fixedly penetrating through the lower part of the side wall of the pulp tank 2, a piston plate 65 slidably and sealingly connected to the inner wall of the guide box 64 and dividing the inner cavity of the guide box 64 into a first chamber 641 and a second chamber 642, a first one-way feed pipe 66 fixedly connected to the piston plate 65 and sealingly slidably penetrating through the guide box 64 and placed at one end of the pulp tank 2, a vertical rod 67 fixedly connected to the outer end of the first one-way feed pipe 66 outside the guide box 64, and a first one-way discharge pipe 68 fixedly penetrating through the guide box 64 and having one end communicating with the first chamber 641. The first one-way discharge pipe 68 is a flexible pipe.

[0053] The vertical rod 67 is located inside the pulp tank 2 and the upper end of the vertical rod 67 is fixedly connected to the movable vertical plate 51. One-way valves are provided on both the first one-way feed pipe 66 and the first one-way discharge pipe 68. The first one-way feed pipe 66 fixedly penetrates through the piston plate 65 so that the first one-way feed pipe 66 communicates with the first chamber 641. A filter screen that only allows water to pass through is provided at the feed port of the first one-way feed pipe 66. The other ends of the two first one-way discharge pipes 68 are respectively communicated with both ends of the water delivery plate 52. When the volume of the first chamber 641 of one of the guide boxes 64 decreases, the volume of the first chamber 641 of the other guide box 64 increases.

[0054] With reference to Figure 7 、 Figure 8 、 Figure 9 , a flow disturbance pipe 25 immersed in the pulp is rotatably connected to the inner wall of the pulp tank 2. There are two flow disturbance pipes 25 corresponding to each other and they are respectively located on both sides of the lower die base 3. A plurality of flow disturbance holes 26 communicating with the inner cavity are formed on the outer peripheral wall of the flow disturbance pipe 25. A second one-way feed pipe 643 and a second one-way discharge pipe 644 communicating with the second chamber 642 are fixedly penetrated through the end face of the guide box 64. One-way valves are provided on both the second one-way feed pipe 643 and the second one-way discharge pipe 644. The second one-way discharge pipe 644 is connected to one end of the flow disturbance pipe 25 through a rotary joint, and the second one-way discharge pipe 644 communicates with the flow disturbance pipe 25.

[0055] A volume expansion box 27 is fixedly penetrated through the side wall of the slurry tank 2. A second linkage assembly 8 for driving the spoiler tube 25 to rotate around its own axis is arranged between the vertical rod 67 and the spoiler tube 25. The second linkage assembly 8 includes a third gear 81 coaxially and fixedly sleeved at one end of the spoiler tube 25, a support rod 82 fixedly connected to the outer wall of the lower end of the vertical rod 67, and a second rack 83 fixedly connected to the support rod 82 and slidably penetrating through the volume expansion box 27. The third gear 81 meshes with the second rack 83.

[0056] The implementation principle of Embodiment 3 is as follows: When the movable vertical plate 51 slides horizontally to drive the vertical rod 67 to move, the piston plate 65 is pushed to slide in the guide box 64 through the first one-way feed pipe 66, so that the volumes of the first chamber 641 and the second chamber 642 change alternately. When the volume of the first chamber 641 increases and the volume of the second chamber 642 decreases, the first one-way feed pipe 66 sucks the water in the slurry tank 2 into the first chamber 641, and the slurry in the second chamber 642 flows into the spoiler tube 25 through the second one-way discharge pipe 644 and sprays out from the spoiler holes 26 to disturb the slurry; when the volume of the first chamber 641 decreases and the volume of the second chamber 642 increases, the piston plate 65 presses the water in the first chamber 641 into the water delivery cavity through the first one-way discharge pipe 68 and sprays out from the nozzle 53 for spraying operation, and the slurry in the slurry tank 2 enters the second chamber 642 through the second one-way feed pipe 643 for storage. The two guide boxes 64 cooperate to ensure the continuity and stability of the liquid supply process, ensure that the water delivery plate 52 always maintains the water spraying operation during each movement and can disturb the slurry in the slurry tank 2, avoid the phenomenon of precipitation and stratification of the slurry during long-term static settlement. At the same time, during the sliding process of the vertical rod 67, the second rack 83 is driven to slide, thereby driving the third gear 81 to rotate, and then driving the spoiler tube 25 to rotate around its own axis. The rotating spoiler tube 25 further improves the mixing effect of the slurry.

[0057] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for processing burrs on the edge of a paper dinner plate, characterized in that: It includes a frame (1), a slurry tank (2) arranged on the frame (1) with an open upper part, a lower die holder (3) slidably connected to the bottom wall of the slurry tank (2) vertically, and an upper die holder (4) slidably connected to the frame (1) vertically and located above the lower die holder (3). A plurality of forming cavities for forming paper dinner plates are formed between the inner cavities of the lower die holder (3) and the upper die holder (4). The bottom wall of the forming cavity has water-permeable pores. The slurry tank (2) is provided with a spray rack (5). The spray rack (5) includes a pair of movable vertical plates (51) respectively located on both sides of the lower die holder (3) and the upper die holder (4) and slidably connected to the slurry tank (2) horizontally, a water delivery member fixedly connected between the two movable vertical plates (51), and a plurality of nozzles (53) connected to the lower end surface of the water delivery member to spray a plurality of paper dinner plates on the lower die holder (3). The water delivery member is located between the upper die holder (4) and the lower die holder (3) after demolding. The water delivery member has a water delivery cavity, and the nozzles (53) communicate with the water delivery cavity; the slurry tank (2) is provided with a liquid supply mechanism (6) for supplying water to the water delivery cavity; the liquid supply mechanism (6) includes a guide box (64) fixedly penetrating through the lower part of the side wall of the slurry tank (2), a piston plate (65) slidably and sealingly connected to the inner wall of the guide box (64) and dividing the inner cavity of the guide box (64) into a first chamber (641) and a second chamber (642), a first one-way feed pipe (66) fixedly connected to the piston plate (65) and slidably penetrating through the guide box (64) and placed inside one end of the slurry tank (2), a vertical rod (67) fixedly connected to the outer end of the first one-way feed pipe (66) outside the guide box (64), and a first one-way discharge pipe (68) fixedly penetrating through the guide box (64) and having one end communicating with the first chamber (641). The upper end of the vertical rod (67) is fixedly connected to the movable vertical plate (51). The first one-way feed pipe (66) and the first one-way discharge pipe (68) are both provided with one-way valves. The first one-way feed pipe (66) penetrates through the piston plate (65) so that the first one-way feed pipe (66) communicates with the first chamber (641). The feed port of the first one-way feed pipe (66) is provided with a filter screen that only allows water to pass through. The other end of the first one-way discharge pipe (68) communicates with the water delivery cavity; there are two groups of the liquid supply mechanisms (6). The two guide boxes (64) are respectively arranged on the two side walls of the slurry tank (2). When the volume of the first chamber (641) of one of the guide boxes (64) decreases, the volume of the first chamber (641) of the other guide box (64) increases. The two first one-way feed pipes (66) are respectively connected to both sides of the water delivery member.

2. The edge burr processing device for paper plate production according to claim 1, wherein: The water delivery member is a water delivery plate (52). A plurality of nozzles (53) are distributed at intervals along the length direction of the water delivery plate (52) to form a row. At least two rows of nozzles (53) are arranged on the lower end surface of the water delivery plate (52), and adjacent two rows of nozzles (53) are arranged in a staggered manner.

3. A burr treatment device for the production of paper dinner plates according to claim 1, characterized in that: The nozzle (53) is rotatably connected to the water delivery member around its own axis. A first linkage assembly (7) for driving the nozzle (53) to rotate is arranged between the water delivery member and the slurry tank (2).

4. An edge burr processing device for paper plate production according to claim 3, characterized in that: The first linkage assembly (7) includes a first rack (71) fixedly connected to the slurry tank (2) and located below one side of the water delivery member, a first gear (72) coaxially and fixedly sleeved on the nozzle (53), and a second gear (73) rotatably connected to the water delivery member and meshed between the two first gears (72). The outermost first gear (72) is meshed with the first rack (71).

5. A burr treatment device for the edge of a paper dinner plate production according to claim 1, characterized in that: A flow disturbance tube (25) immersed in the slurry is provided on the inner wall of the slurry tank (2). A plurality of flow disturbance holes (26) communicating with the inner cavity are formed on the outer peripheral wall of the flow disturbance tube (25). The outer peripheral wall of the first one-way discharge pipe (68) is slidably and sealingly connected to the end face of the guide box (64). A second one-way feed pipe (643) and a second one-way discharge pipe (644) communicating with the second chamber (642) are fixedly penetrated through the end face of the guide box (64). The second one-way discharge pipe (644) communicates with the flow disturbance tube (25).

6. The edge burr treatment device for paper plate production according to claim 5, characterized in that: The flow disturbance tube (25) is rotatably connected to the slurry tank (2). An expansion box (27) is fixedly penetrated through the side wall of the slurry tank (2). A second linkage assembly (8) for driving the flow disturbance tube (25) to rotate about its own axis is provided between the vertical rod (67) and the flow disturbance tube (25). The second linkage assembly (8) includes a third gear (81) coaxially and fixedly sleeved on one end of the flow disturbance tube (25), and a second rack (83) fixedly connected to the vertical rod (67) and slidably penetrating through the expansion box (27). The third gear (81) is meshed with the second rack (83).

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