Production embossing machine for toilet paper

Abstract

The invention discloses a production embossing machine for toilet paper, and relates to the technical field of toilet paper production, an embossing mechanism comprises a first embossing assembly, a second embossing assembly and a third embossing assembly which are arranged side by side up and down, the first embossing assembly is used for preparing embossing of upper-layer paper, and the second embossing assembly is used for preparing embossing of middle-layer paper; the third embossing assembly is used for preparing embossing of lower-layer paper; the embossing of the upper-layer paper is a plurality of first protrusions arranged in an array mode, the embossing of the middle-layer paper is a plurality of second protrusions and second grooves arranged in a staggered mode in an array mode, the embossing of the lower-layer paper is a plurality of first grooves arranged in an array mode, the first protrusions and the second protrusions are arranged correspondingly, and the first grooves and the second grooves are arranged correspondingly; interlayer fitting is achieved through embedding of the concave-convex structures in the compounding process, meanwhile, the first protrusions of the upper layer paper and the first grooves of the lower layer paper correspondingly form three-dimensional patterns, a hollow structure is formed, and therefore the thickness and the bulkiness of the toilet paper are improved.

Description

Technical Field

[0001] This invention relates to the field of toilet paper production technology, and in particular to an embossing machine for toilet paper production. Background Technology

[0002] As a daily necessity, embossing toilet paper on its surface not only enhances its appearance but also improves its fluffiness, absorbency, and tactile comfort. Therefore, the embossing process is a key step in toilet paper production. Most existing toilet paper embossing machines use an upper and lower embossing roller structure. By setting concave and convex patterns on the surface of the embossing rollers, the toilet paper forms corresponding patterns during the rolling process.

[0003] However, in the existing production process of composite toilet paper, in order to make the two or three layers of toilet paper bond more tightly and not separate, the toilet paper is usually laminated together first and then embossed. The toilet paper obtained by this process will inevitably be further compressed after the embossing step, resulting in a significantly insufficient thickness. Therefore, the toilet paper produced under this production process fails to meet the actual requirements in terms of thickness, which in turn affects its strength and durability.

[0004] Therefore, there is an urgent need for an embossing machine to produce toilet paper that is thick enough and does not separate, in order to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an embossing machine for producing toilet paper to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An embossing machine for producing toilet paper includes a frame and, from left to right, an embossing mechanism, a dust removal mechanism, an impregnation mechanism, and a laminating mechanism arranged on the frame. The embossing mechanism includes a first embossing component, a second embossing component, and a third embossing component arranged side by side. The first embossing component is used to emboss the upper layer of paper, the second embossing component is used to emboss the middle layer of paper, and the third embossing component is used to emboss the lower layer of paper. The embossing of the upper layer paper consists of multiple arrays of first protrusions, the embossing of the middle layer paper consists of multiple arrays of interleaved second protrusions and second grooves, and the embossing of the lower layer paper consists of multiple arrays of first grooves, wherein the first protrusions and the second protrusions are arranged correspondingly, and the first grooves and the second grooves are arranged correspondingly. The dust removal mechanism includes a first dust removal component and a second dust removal component. The first dust removal component is disposed between the upper layer paper and the middle layer paper, and the second dust removal component is disposed between the middle layer paper and the lower layer paper. The impregnation mechanism is used to impregnate the middle layer paper with glue to bond the upper layer paper and the lower layer paper; The composite mechanism includes an upper pressure roller and a lower pressure roller arranged side by side, a ninth rotating shaft, a tenth rotating shaft, a ninth motor, and a tenth motor. The ninth motor and the tenth motor are fixed to one side of the frame. One end of the ninth rotating shaft is fixedly connected to the output end of the ninth motor, and the other end passes through one side of the frame and is rotatably connected to the upper pressure roller and the other side of the frame. The ninth rotating shaft is rotatably connected to one side of the frame and is fixedly connected to the upper pressure roller. One end of the tenth rotating shaft is fixedly connected to the output end of the tenth motor, and the other end passes through one side of the frame and is rotatably connected to the lower pressure roller and the other side of the frame. The tenth rotating shaft is rotatably connected to one side of the frame and is fixedly connected to the lower pressure roller. A seventh groove for placing the first protrusion is provided around the circumference of the upper pressure roller, and an eighth groove for placing the first groove is provided on the lower pressure roller.

[0007] Furthermore, the frame includes a first support plate, a second support plate, a first connecting plate, and a second connecting plate. The top ends of the first and second support plates are fixedly connected by the first connecting plate, and the bottom ends of the first and second support plates are fixedly connected by the second connecting plate. The ninth motor and the tenth motor are fixed on the side of the first support plate away from the second support plate. The other end of the ninth rotating shaft passes through the first support plate and the upper pressure roller and is rotatably connected to the second support plate. The ninth rotating shaft is rotatably connected to the first support plate. The other end of the tenth rotating shaft passes through the first support plate and the lower pressure roller and is rotatably connected to the second support plate. The tenth rotating shaft is rotatably connected to the first support plate.

[0008] Furthermore, the first embossing assembly includes a first embossing roller and a first pressure roller arranged side by side, a first rotating shaft, a second rotating shaft, a first motor, and a second motor. The first motor and the second motor are fixed on the side of the first support plate away from the second support plate. One end of the first rotating shaft is fixedly connected to the output end of the first motor, and the other end passes through the first support plate and the first embossing roller and is rotatably connected to the second support plate. The first rotating shaft is rotatably connected to the first support plate and fixedly connected to the first embossing roller. One end of the second rotating shaft is fixedly connected to the output end of the second motor, and the other end passes through the first support plate and the first pressure roller and is rotatably connected to the second support plate. The second rotating shaft is rotatably connected to the first support plate and fixedly connected to the first pressure roller. A third groove for placing the first protrusion is provided around the circumference of the first embossing roller, and a third protrusion corresponding to the third groove is provided around the circumference of the first pressure roller.

[0009] Furthermore, the second embossing assembly includes a second embossing roller and a second pressure roller arranged side by side, a third rotating shaft, a fourth rotating shaft, a third motor, and a fourth motor. The third motor and the fourth motor are fixed on the side of the first support plate away from the second support plate. One end of the third rotating shaft is fixedly connected to the output end of the third motor, and the other end passes through the first support plate and the second embossing roller and is rotatably connected to the second support plate. The third rotating shaft is rotatably connected to the first support plate and fixedly connected to the second embossing roller. One end of the fourth rotating shaft is fixedly connected to the output end of the fourth motor, and the other end passes through the first support plate and the second pressure roller and is rotatably connected to the second support plate. The fourth rotating shaft is rotatably connected to the first support plate and fixedly connected to the second pressure roller. The second embossing roller has a fourth groove for placing the second protrusion and a fourth protrusion for forming the second groove arranged around its circumference. The second pressure roller has a fifth protrusion corresponding to the fourth groove and a fifth groove corresponding to the fourth protrusion arranged around its circumference.

[0010] Furthermore, the third embossing assembly includes a third embossing roller and a third pressure roller arranged side by side, a fifth rotating shaft, a sixth rotating shaft, a fifth motor, and a sixth motor. The fifth motor and the sixth motor are fixed on the side of the first support plate away from the second support plate. One end of the fifth rotating shaft is fixedly connected to the output end of the fifth motor, and the other end passes through the first support plate and the third embossing roller and is rotatably connected to the second support plate. The fifth rotating shaft is rotatably connected to the first support plate and fixedly connected to the third embossing roller. One end of the sixth rotating shaft is fixedly connected to the output end of the sixth motor, and the other end passes through the first support plate and the third pressure roller and is rotatably connected to the second support plate. The sixth rotating shaft is rotatably connected to the first support plate and fixedly connected to the third pressure roller. A sixth protrusion for forming the first groove is provided around the circumference of the third embossing roller, and a sixth groove corresponding to the sixth protrusion is provided around the circumference of the third pressure roller.

[0011] Furthermore, the first dust removal component includes a first dust removal box and a first suction pipe. The first dust removal box is fixed between the first support plate and the second support plate. One end of the suction pipe is connected to an external vacuum cleaner, and the other end is connected to the first dust removal box. The top surface of the first dust removal box is in contact with the lower surface of the upper layer paper, and the bottom surface of the first dust removal box is in contact with the upper surface of the middle layer paper. A first dust removal port communicating with the interior of the first dust removal box is provided on both the top and bottom surfaces of the first dust removal box.

[0012] Furthermore, the four ends of the first dust collector are rounded.

[0013] Furthermore, the second dust removal component includes a second dust removal box and a second suction pipe. The second dust removal box is fixed between the first support plate and the second support plate. One end of the second suction pipe is connected to an external vacuum cleaner, and the other end is connected to the second dust removal box. The top surface of the second dust removal box is in contact with the lower surface of the middle layer paper, and the bottom surface of the second dust removal box is in contact with the upper surface of the lower layer paper. A second dust removal port communicating with the interior of the second dust removal box is provided on both the top and bottom surfaces of the second dust removal box.

[0014] Furthermore, the four ends of the second dust collector are rounded.

[0015] Furthermore, the glue-dipping mechanism includes a glue tank, a glue inlet pipe, a glue-dipping roller, a pressure roller, an eleventh rotating shaft, a twelfth rotating shaft, an eleventh motor, and a twelfth motor. The glue tank is fixed between the first support plate and the second support plate. One end of the glue inlet pipe is connected to an external glue tank containing glue via a pump body, and the other end of the glue inlet pipe is connected to the top side of the glue tank. The pressure roller and the glue-dipping roller are arranged side by side, with the lower half of the glue-dipping roller located inside the glue tank and in contact with the glue. The eleventh motor and the twelfth motor are fixed on the side of the first support plate away from the second support plate. One end of the eleventh rotating shaft is fixedly connected to the output end of the eleventh motor, and the other end... The eleventh rotating shaft is rotatably connected to the first support plate, the pressure roller, and the second support plate. The eleventh rotating shaft is rotatably connected to the first support plate and fixedly connected to the pressure roller. One end of the twelfth rotating shaft is fixedly connected to the output end of the twelfth motor, and the other end passes through the first support plate, the dip roller, and is rotatably connected to the second support plate. The twelfth rotating shaft is rotatably connected to the first support plate and fixedly connected to the dip roller. The pressure roller has a ninth groove around its circumference for placing the first protrusion. The dip roller has a seventh protrusion that mates with the second protrusion and a ninth groove that mates with the second groove around its circumference.

[0016] This invention discloses the following technical effects: This invention discloses an embossing machine for producing toilet paper. The upper, middle, and lower layers of paper are pre-embossed by a first embossing component, a second embossing component, and a third embossing component, respectively. The embossing structure of the three layers of paper is designed with complementary concave and convex features—the first protrusion of the upper layer corresponds to the second protrusion of the middle layer, and the first groove of the lower layer corresponds to the second groove of the middle layer. During lamination, the interlayer bonding is achieved through the interlocking of the concave and convex structures. At the same time, the first protrusion of the upper layer and the first groove of the lower layer correspond to form a three-dimensional pattern, creating a hollow structure, thereby improving the thickness and fluffiness of the toilet paper. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 : A schematic diagram of the structure of an embossing machine for producing toilet paper according to the present invention; Figure 2 : A cross-sectional view of an embossing machine for producing toilet paper according to the present invention; Figure 3 : Schematic diagram of the first dust removal component of the present invention; Figure 4 : Schematic diagram of the structure of the second dust removal component of the present invention; Figure 5 : Schematic diagram of the impregnation mechanism of this invention; Figure 6 : Schematic diagram of the embossed structure of this invention; Specifically, the components are: 1. First embossing assembly; 11. First embossing roller; 12. First pressure roller; 13. First rotating shaft; 14. Second rotating shaft; 15. First motor; 16. Second motor; 2. Second embossing assembly; 21. Second embossing roller; 22. Second pressure roller; 23. Third rotating shaft; 24. Fourth rotating shaft; 25. Third motor; 26. Fourth motor; 3. Third embossing assembly; 31. Third embossing roller; 32. Third pressure roller; 33. Fifth rotating shaft; 34. Sixth rotating shaft; 35. Fifth motor; 36. Sixth motor; 4. Frame; 41. First support plate; 42. Second support plate; 43. First connecting plate; 44. Second connecting plate; 5. First dust removal assembly; 51. First dust removal... 52. First suction pipe; 53. First dust removal port; 6. Second dust removal assembly; 61. Second dust removal box; 62. Second suction pipe; 63. Second dust removal port; 7. Glue dipping mechanism; 71. Glue tank; 72. Glue inlet pipe; 73. Glue dipping roller; 74. Pressure roller; 75. Eleventh rotating shaft; 76. Twelfth rotating shaft; 77. Eleventh motor; 78. Twelfth motor; 8. Composite mechanism; 81. Upper pressure roller; 82. Lower pressure roller; 83. Ninth rotating shaft; 84. Tenth rotating shaft; 85. Ninth motor; 86. Tenth motor; 100. Upper layer paper; 200. Middle layer paper; 300. Lower layer paper; 400. First protrusion; 500. Second protrusion; 600. First groove; 700. Second groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The specific implementation method is as follows: like Figures 1-6 As shown; This invention discloses an embossing machine for producing toilet paper, which includes a frame 4 and an embossing mechanism, a dust removal mechanism, an impregnation mechanism 7 and a laminating mechanism 8 arranged sequentially from left to right on the frame 4. The frame 4 includes a first support plate 41, a second support plate 42, a first connecting plate 43, and a second connecting plate 44. The top ends of the first support plate 41 and the second support plate 42 are fixedly connected by the first connecting plate 43, and the bottom ends of the first support plate 41 and the second support plate 42 are fixedly connected by the second connecting plate 44.

[0022] The embossing mechanism includes a first embossing component 1, a second embossing component 2, and a third embossing component 3 arranged side by side. The first embossing component 1 is used to prepare the embossing of the upper layer paper 100, the second embossing component 2 is used to prepare the embossing of the middle layer paper 200, and the third embossing component 3 is used to prepare the embossing of the lower layer paper 300. The embossing of the upper layer paper 100 consists of multiple arrays of first protrusions 400, the embossing of the middle layer paper 200 consists of multiple arrays of interleaved second protrusions 500 and second grooves 700, and the embossing of the lower layer paper 300 consists of multiple arrays of first grooves 600, wherein the first protrusions 400 and the second protrusions 500 are arranged correspondingly, and the first grooves 600 and the second grooves 700 are arranged correspondingly. The dust removal mechanism includes a first dust removal component 5 and a second dust removal component 6. The first dust removal component 5 is disposed between the upper layer paper 100 and the middle layer paper 200, and the second dust removal component 6 is disposed between the middle layer paper 200 and the lower layer paper 300. The glue-impregnation mechanism 7 is used to impregnate the middle layer paper 200 with glue to bond the upper layer paper 100 and the lower layer paper 300. The composite mechanism 8 includes an upper pressure roller 81 and a lower pressure roller 82 arranged side by side, a ninth rotating shaft 83, a tenth rotating shaft 84, a ninth motor 85, and a tenth motor 86. The ninth motor 85 and the tenth motor 86 are fixed to the side of the first support plate 41 away from the second support plate 42. One end of the ninth rotating shaft 83 is fixedly connected to the output end of the ninth motor 85, and the other end passes through the first support plate 41, the upper pressure roller 81, and is rotatably connected to the second support plate 42. The ninth rotating shaft 83 is rotatably connected to the first support plate 41 and is fixedly connected to the upper pressure roller 81. One end of the tenth rotating shaft 84 is fixedly connected to the output end of the tenth motor 86, and the other end passes through the first support plate 41, the lower pressure roller 82, and is rotatably connected to the second support plate 42. The tenth rotating shaft 84 is rotatably connected to the first support plate 41 and is fixedly connected to the lower pressure roller 82. The upper pressure roller 81 has a seventh groove around its circumference for placing the first protrusion 400, and the lower pressure roller 82 has an eighth groove for placing the first groove 600.

[0023] In this invention, the upper layer paper 100, the middle layer paper 200, and the lower layer paper 300 are pre-embossed by the first embossing component 1, the second embossing component 2, and the third embossing component 3, respectively. The embossing structure of the three layers of paper is a complementary concave-convex alignment design. The first protrusion 400 of the upper layer paper 100 corresponds to the second protrusion 500 of the middle layer paper 200, and the first groove 600 of the lower layer paper 300 corresponds to the second groove 700 of the middle layer paper 200. During lamination, the interlayer bonding is achieved through the interlocking of the concave-convex structure. At the same time, the first protrusion 400 of the upper layer paper 100 and the first groove 600 of the lower layer paper 300 correspond to form a three-dimensional pattern, forming a hollow structure, thereby improving the thickness and fluffiness of the toilet paper.

[0024] In this embodiment, the first embossing assembly 1 includes a first embossing roller 11 and a first pressure roller 12 arranged side by side, a first rotating shaft 13, a second rotating shaft 14, a first motor 15, and a second motor 16. The first motor 15 and the second motor 16 are fixed to the side of the first support plate 41 away from the second support plate 42. One end of the first rotating shaft 13 is fixedly connected to the output end of the first motor 15, and the other end passes through the first support plate 41, the first embossing roller 11, and is rotatably connected to the second support plate 42. The first rotating shaft 13 is rotatably connected to the first support plate 41. The first rotating shaft 13 is fixedly connected to the first embossing roller 11. One end of the second rotating shaft 14 is fixedly connected to the output end of the second motor 16, and the other end passes through the first support plate 41 and the first pressure roller 12 and is rotatably connected to the second support plate 42. The second rotating shaft 14 is rotatably connected to the first support plate 41 and fixedly connected to the first pressure roller 12. The first embossing roller 11 has a third groove around its circumference for placing the first protrusion 400. The first pressure roller 12 has a third protrusion around its circumference corresponding to the third groove.

[0025] In this invention, the upper layer paper 100 is fed into the first embossing assembly 1, the first motor 15 drives the first embossing roller 11 to rotate, and the second motor 16 drives the first pressure roller 12 to rotate synchronously in the opposite direction. The third protrusion of the first pressure roller 12 is aligned and engaged with the third groove of the first embossing roller 11. During the rolling process, the first protrusions 400 distributed in an array are pressed on the surface of the upper layer paper 100.

[0026] In this embodiment, the second embossing assembly 2 includes a second embossing roller 21 and a second pressure roller 22 arranged side by side, a third rotating shaft 23, a fourth rotating shaft 24, a third motor 25, and a fourth motor 26. The third motor 25 and the fourth motor 26 are fixed to the side of the first support plate 41 away from the second support plate 42. One end of the third rotating shaft 23 is fixedly connected to the output end of the third motor 25, and the other end passes through the first support plate 41, the second embossing roller 21, and is rotatably connected to the second support plate 42. The third rotating shaft 23 is rotatably connected to the first support plate 41, and the third rotating shaft 23 is rotatably connected to the second embossing roller 22. 1. Fixed connection: One end of the fourth rotating shaft 24 is fixedly connected to the output end of the fourth motor 26, and the other end passes through the first support plate 41 and the second pressure roller 22 and is rotatably connected to the second support plate 42. The fourth rotating shaft 24 is rotatably connected to the first support plate 41. The fourth rotating shaft 24 is fixedly connected to the second pressure roller 22. The second embossing roller 21 is provided with a fourth groove for placing the second protrusion 500 and a fourth protrusion for making the second groove 700 around its circumference. The second pressure roller 22 is provided with a fifth protrusion corresponding to the fourth groove and a fifth groove corresponding to the fourth protrusion around its circumference.

[0027] In this invention, the upper layer paper 100 is fed into the first embossing assembly 1, the first motor 15 drives the first embossing roller 11 to rotate, and the second motor 16 drives the first pressure roller 12 to rotate synchronously in the opposite direction. The third protrusion of the first pressure roller 12 is aligned and engaged with the third groove of the first embossing roller 11. During the rolling process, the first protrusions 400 distributed in an array are pressed on the surface of the upper layer paper 100.

[0028] In this embodiment, the third embossing assembly 3 includes a third embossing roller 31 and a third pressure roller 32 arranged side by side, a fifth rotating shaft 33, a sixth rotating shaft 34, a fifth motor 35, and a sixth motor 36. The fifth motor 35 and the sixth motor 36 are fixed to the side of the first support plate 41 away from the second support plate 42. One end of the fifth rotating shaft 33 is fixedly connected to the output end of the fifth motor 35, and the other end passes through the first support plate 41, the third embossing roller 31, and is rotatably connected to the second support plate 42. The fifth rotating shaft 33 is rotatably connected to the first support plate 41. Next, the fifth rotating shaft 33 is fixedly connected to the third embossing roller 31, one end of the sixth rotating shaft 34 is fixedly connected to the output end of the sixth motor 36, and the other end passes through the first support plate 41, the third pressure roller 32 and is rotatably connected to the second support plate 42. The sixth rotating shaft 34 is rotatably connected to the first support plate 41 and fixedly connected to the third pressure roller 32. The third embossing roller 31 is provided with a sixth protrusion around its circumference for making the first groove 600, and the third pressure roller 32 is provided with a sixth groove around its circumference corresponding to the sixth protrusion.

[0029] In this invention, the lower layer paper 300 is fed into the third embossing assembly 3, and the fifth motor 35 and the sixth motor 36 drive the third embossing roller 31 and the third pressure roller 32 to rotate synchronously in opposite directions. The sixth protrusion of the third embossing roller 31 cooperates with the sixth groove of the third pressure roller 32 to press out the array of first grooves 600 on the surface of the lower layer paper 300.

[0030] In this embodiment, the first dust removal component 5 includes a first dust removal box 51 and a first suction pipe 52. The first dust removal box 51 is fixed between the first support plate 41 and the second support plate 42. One end of the suction pipe is connected to an external vacuum cleaner, and the other end is connected to the first dust removal box 51. The top surface of the first dust removal box 51 is in contact with the lower surface of the upper layer paper 100, and the bottom surface of the first dust removal box 51 is in contact with the upper surface of the middle layer paper 200. A first dust removal port 53 communicating with the interior of the first dust removal box 51 is provided on both the top and bottom surfaces of the first dust removal box 51.

[0031] The first dust removal component 5 of the present invention is disposed between the upper layer paper 100 and the middle layer paper 200. The top and bottom surfaces of the first dust removal box 51 are respectively attached to the lower surface of the upper layer paper 100 and the upper surface of the middle layer paper 200. An external vacuum cleaner forms a negative pressure through the first suction pipe 52 and adsorbs paper scraps, dust and other impurities on the bonding surface of the two layers of paper through the first dust removal port 53 of the first dust removal box 51.

[0032] In this embodiment, the four ends of the first dust collection box 51 are rounded to prevent scratching the paper surface.

[0033] In this embodiment, the second dust removal component 6 includes a second dust removal box 61 and a second suction pipe 62. The second dust removal box 61 is fixed between the first support plate 41 and the second support plate 42. One end of the second suction pipe 62 is connected to an external vacuum cleaner, and the other end is connected to the second dust removal box 61. The top surface of the second dust removal box 61 is in contact with the lower surface of the middle layer paper 200, and the bottom surface of the second dust removal box 61 is in contact with the upper surface of the lower layer paper 300. A second dust removal port 63 communicating with the interior of the second dust removal box 61 is provided on both the top and bottom surfaces of the second dust removal box 61.

[0034] The second dust removal component 6 of the present invention is disposed between the middle layer paper 200 and the lower layer paper 300. The top and bottom surfaces of the second dust removal box 61 are respectively attached to the lower surface of the middle layer paper 200 and the upper surface of the lower layer paper 300. The adsorption of impurities on the bonding surface of the middle layer paper 200 and the lower layer paper 300 is completed through the second suction pipe 62 and the second dust removal port 63.

[0035] In this embodiment, the four ends of the second dust collection box 61 are rounded to prevent scratching the paper surface.

[0036] In this embodiment, the glue dipping mechanism 7 includes a glue tank 71, a glue inlet pipe 72, a glue dipping roller 73, a pressure roller 74, an eleventh rotating shaft 75, a twelfth rotating shaft 76, an eleventh motor 77, and a twelfth motor 78. The glue tank 71 is fixed between the first support plate 41 and the second support plate 42. One end of the glue inlet pipe 72 is connected to an external glue tank containing glue through a pump body, and the other end of the glue inlet pipe 72 is connected to the top side of the glue tank 71. The pressure roller 74 and the glue dipping roller 73 are arranged side by side, with the lower half of the glue dipping roller 73 located inside the glue tank 71 and in contact with the glue. The eleventh motor 77 and the twelfth motor 78 are fixed on the side of the first support plate 41 away from the second support plate 42. One end of the eleventh rotating shaft 75 is fixedly connected to the output end of the eleventh motor 77. The other end passes through the first support plate 41, the pressure roller 74 and is rotatably connected to the second support plate 42. The eleventh rotating shaft 75 is rotatably connected to the first support plate 41 and is fixedly connected to the pressure roller 74. One end of the twelfth rotating shaft 76 is fixedly connected to the output end of the twelfth motor 78, and the other end passes through the first support plate 41, the glue-impregnating roller 73 and is rotatably connected to the second support plate 42. The twelfth rotating shaft 76 is rotatably connected to the first support plate 41 and is fixedly connected to the glue-impregnating roller 73. The pressure roller 74 is provided with a ninth groove around its circumference for placing the first protrusion 400. The glue-impregnating roller 73 is provided with a seventh protrusion that mates with the second protrusion 500 and a ninth groove that mates with the second groove 700 around its circumference.

[0037] In this invention, the top layer paper 100 and the middle layer paper 200, after dust removal, are first conveyed to the pressure roller 74 and the dipping roller 73 of the dipping mechanism 7. The glue in the external glue tank is pressurized by the pump and continuously conveyed to the glue tank 71 through the glue inlet pipe 72 to maintain a stable glue level in the glue tank 71. The twelfth motor 78 drives the dipping roller 73 to rotate, and the lower half of the dipping roller 73 is immersed in the glue. During the rotation, the surface is evenly coated with glue. The eleventh motor 77 drives the pressure roller 74 to rotate synchronously in the opposite direction to the dipping roller 73. During the rotation, as the middle layer paper 200 and the upper layer paper 100 are conveyed by the two rollers, the second protrusion 500 and the second groove 700 on the surface of the middle layer paper 200 precisely match the seventh protrusion and the ninth groove of the glue-dipping roller 73, and the glue is evenly filled into the concave and convex structure of the middle layer paper 200. At the same time, the ninth groove of the pressing roller 74 places the first protrusion 400 of the upper layer paper 100 in it, thereby achieving the bonding of the middle layer paper 200 and the upper layer paper 100, while ensuring that the first protrusion 400, which does not need to be bonded, does not get glue on it.

[0038] Then, the bonded upper layer paper 100 and middle layer paper 200, along with the dust-removed lower layer paper 300, are conveyed between the upper pressure roller 81 and the lower pressure roller 82 of the laminating mechanism. The lower surface of the middle layer paper 200 still has adhesive. The ninth motor 85 drives the ninth rotating shaft 83 to rotate, thereby driving the fixed upper pressure roller 81 to rotate; the tenth motor 86 drives the tenth rotating shaft 84 to rotate, thereby driving the fixed lower pressure roller 82 to rotate. The two motors are synchronously controlled to keep the upper pressure roller 81 and the lower pressure roller 82 running in opposite directions at the same speed, ensuring the smooth conveying of the three layers of paper. The seventh groove preset on the circumferential surface of the upper pressure roller 81 is aligned with the upper layer paper 100. The first protrusion 400 on the surface is precisely matched, and the first groove 600 on the surface of the lower paper 300 is precisely matched with the eighth groove pre-set on the circumferential surface of the lower pressure roller 82. When the three layers of paper that have completed dust removal and glue impregnation enter the roller gap between the upper pressure roller 81 and the lower pressure roller 82, the first protrusion 400 of the upper paper 100 is embedded in the seventh groove of the upper pressure roller 81, and the first groove 600 of the lower paper 300 is aligned and fitted with the eighth groove of the lower pressure roller 82. This achieves complete avoidance of the pre-embossed concave and convex structure of the paper by the pressure roller, and only the parts of the three layers of paper that are in contact with each other are bonded, effectively preserving the original thickness and fluffiness of the paper.

[0039] Specifically, after the middle layer paper 200 is impregnated with glue, the second protrusion 500 and the second groove 700 on its surface are precisely aligned with the first protrusion 400 of the upper layer paper 100 and the first groove 600 of the lower layer paper 300, respectively. Under the synchronous rolling action of the upper and lower pressure rollers 82, the concave and convex structures of the three layers of paper are interlocked, and the glue on the surface of the middle layer paper 200 is in full contact with the bonding surfaces of the upper and lower layers of paper 300. At the same time, the slight rolling force of the upper and lower pressure rollers 82 provides bonding pressure for interlayer bonding, so that the glue is tightly bonded to each layer of paper, realizing the firm composite of the three layers of toilet paper. Moreover, the pressure is only applied to the bonding area where the concave and convex structures are interlocked and the flat area without concave and convex structures. There is no additional compaction in the non-bonded areas, and finally the composite toilet paper with no delamination and sufficient thickness is formed.

[0040] In this embodiment, the glue tank 71 is equipped with a liquid level sensor (any existing liquid level sensor in the art can be used to detect the liquid level) to detect the glue level. When the liquid level is lower than the preset value, the pump body automatically starts to replenish glue, and when it is higher than the preset value, the glue replenishment stops to avoid glue overflow.

[0041] In this embodiment, the adhesive used is Xingyu Endurance's water-based paper composite adhesive.

[0042] In this embodiment, a PLC controller is provided, which is electrically connected to the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth motors, pump bodies, and vacuum cleaners.

[0043] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A production embosser for sanitary paper, characterized in that The embossing mechanism, the dust removal mechanism, the glue dipping mechanism (7) and the composite mechanism (8) are sequentially arranged on the rack (4) from left to right. The embossing mechanism comprises first, second and third embossing assemblies (1, 2 and 3) arranged side by side in an up-down manner, the first embossing assembly (1) is used for preparing embossing of the upper layer paper (100), the second embossing assembly (2) is used for preparing embossing of the middle layer paper (200), and the third embossing assembly (3) is used for preparing embossing of the lower layer paper (300). The embossing of the upper layer paper (100) is a plurality of first protrusions (400) arranged in an array, the embossing of the middle layer paper (200) is a plurality of second protrusions (500) and second grooves (700) arranged in an array and staggered, and the embossing of the lower layer paper (300) is a plurality of first grooves (600) arranged in an array, wherein the first protrusions (400) are arranged correspondingly to the second protrusions (500), and the first grooves (600) are arranged correspondingly to the second grooves (700). The dust removal mechanism comprises first and second dust removal assemblies (5 and 6), the first dust removal assembly (5) is arranged between the upper layer paper (100) and the middle layer paper (200), and the second dust removal assembly (6) is arranged between the middle layer paper (200) and the lower layer paper (300). The glue dipping mechanism (7) is used for dipping glue on the middle layer paper (200) to bond the upper layer paper (100) and the lower layer paper (300). The composite mechanism (8) comprises upper and lower pressure rollers (81 and 82), a ninth rotating shaft (83), a tenth rotating shaft (84), a ninth motor (85) and a tenth motor (86) arranged side by side in an up-down manner, the ninth motor (85) and the tenth motor (86) are fixed on one side of the rack (4), one end of the ninth rotating shaft (83) is fixedly connected with the output end of the ninth motor (85), the other end penetrates through one side of the rack (4), the upper pressure roller (81) is rotatably connected with the other side of the rack (4), the ninth rotating shaft (83) is rotatably connected with one side of the rack (4), the ninth rotating shaft (83) is fixedly connected with the upper pressure roller (81), one end of the tenth rotating shaft (84) is fixedly connected with the output end of the tenth motor (86), the other end penetrates through one side of the rack (4), the lower pressure roller (82) is rotatably connected with the other side of the rack (4), the tenth rotating shaft (84) is rotatably connected with one side of the rack (4), the tenth rotating shaft (84) is fixedly connected with the lower pressure roller (82), and the upper pressure roller (81) is provided with a seventh groove for placing the first protrusion (400) on a circumference, and the lower pressure roller (82) is provided with an eighth groove for placing the first groove (600).

2. The embosser for sanitary paper according to claim 1, characterized in that, The rack (4) comprises a first support plate (41), a second support plate (42), a first connecting plate (43) and a second connecting plate (44), the top end of the first support plate (41) and the top end of the second support plate (42) are fixedly connected through the first connecting plate (43), the bottom end of the first support plate (41) and the bottom end of the second support plate (42) are fixedly connected through the second connecting plate (44), the ninth motor (85) and the tenth motor (86) are fixed on the side of the first support plate (41) away from the second support plate (42), the other end of the ninth rotating shaft (83) is rotatably connected with the second support plate (42) through the first support plate (41) and the upper pressing roller (81), the ninth rotating shaft (83) is rotatably connected with the first support plate (41), the other end of the tenth rotating shaft (84) is rotatably connected with the second support plate (42) through the first support plate (41) and the lower pressing roller (82), the tenth rotating shaft (84) is rotatably connected with the first support plate (41).

3. The embosser for sanitary paper according to claim 2, characterized in that, The first embossing assembly (1) comprises a first embossing roller (11) and a first pressure roller (12) arranged side by side, a first rotating shaft (13), a second rotating shaft (14), a first motor (15) and a second motor (16), the first motor (15) and the second motor (16) are fixed on the side of the first support plate (41) away from the second support plate (42), one end of the first rotating shaft (13) is fixedly connected with the output end of the first motor (15), the other end is rotatably connected with the second support plate (42) through the first support plate (41) and the first embossing roller (11), the first rotating shaft (13) is rotatably connected with the first support plate (41), the first rotating shaft (13) is fixedly connected with the first embossing roller (11), one end of the second rotating shaft (14) is fixedly connected with the output end of the second motor (16), the other end is rotatably connected with the second support plate (42) through the first support plate (41) and the first pressure roller (12), the second rotating shaft (14) is rotatably connected with the first support plate (41), the second rotating shaft (14) is fixedly connected with the first pressure roller (12), a third groove for placing the first protrusion (400) is arranged on the first embossing roller (11) in one circle, a third protrusion corresponding to the third groove is arranged on the first pressure roller (12) in one circle.

4. The embosser for sanitary paper according to claim 3, characterized in that The second embossing assembly (2) comprises a second embossing roller (21) and a second pressure roller (22) arranged side by side up and down, a third rotating shaft (23), a fourth rotating shaft (24), a third motor (25) and a fourth motor (26), the third motor (25) and the fourth motor (26) are fixed on the side of the first supporting plate (41) away from the second supporting plate (42), one end of the third rotating shaft (23) is fixedly connected with the output end of the third motor (25), the other end penetrates through the first supporting plate (41), the second embossing roller (21) and the second supporting plate (42) and is rotationally connected, the third rotating shaft (23) is rotationally connected with the first supporting plate (41), the third rotating shaft (23) is fixedly connected with the second embossing roller (21), one end of the fourth rotating shaft (24) is fixedly connected with the output end of the fourth motor (26), the other end penetrates through the first supporting plate (41), the second pressure roller (22) and the second supporting plate (42) and is rotationally connected, the fourth rotating shaft (24) is rotationally connected with the first supporting plate (41), the fourth rotating shaft (24) is fixedly connected with the second pressure roller (22), the second embossing roller (21) is provided with a fourth groove for placing the second protrusion (500) and a fourth protrusion for making the second groove (700) on a circumference, the second pressure roller (22) is provided with a fifth protrusion corresponding to the fourth groove and a fifth groove corresponding to the fourth protrusion on a circumference.

5. The production embosser for sanitary paper according to claim 4, characterized in that, The third embossing assembly (3) comprises a third embossing roller (31) and a third pressure roller (32) arranged side by side up and down, a fifth rotating shaft (33), a sixth rotating shaft (34), a fifth motor (35) and a sixth motor (36), the fifth motor (35) and the sixth motor (36) are fixed on the side of the first supporting plate (41) away from the second supporting plate (42), one end of the fifth rotating shaft (33) is fixedly connected with the output end of the fifth motor (35), the other end penetrates through the first supporting plate (41), the third embossing roller (31) and the second supporting plate (42) and is rotationally connected, the fifth rotating shaft (33) is rotationally connected with the first supporting plate (41), the fifth rotating shaft (33) is fixedly connected with the third embossing roller (31), one end of the sixth rotating shaft (34) is fixedly connected with the output end of the sixth motor (36), the other end penetrates through the first supporting plate (41), the third pressure roller (32) and the second supporting plate (42) and is rotationally connected, the sixth rotating shaft (34) is rotationally connected with the first supporting plate (41), the sixth rotating shaft (34) is fixedly connected with the third pressure roller (32), the third embossing roller (31) is provided with a sixth protrusion for making the first groove (600) on a circumference, the third pressure roller (32) is provided with a sixth groove corresponding to the sixth protrusion on a circumference.

6. The production embosser for sanitary paper according to claim 5, characterized in that The first dust removal assembly (5) comprises a first dust removal box (51) and a first air suction pipe (52), the first dust removal box (51) is fixed between the first support plate (41) and the second support plate (42), one end of the air suction pipe is connected with an external dust collector, the other end is communicated with the first dust removal box (51), the top surface of the first dust removal box (51) is in contact with the lower surface of the upper layer of paper (100), the bottom surface of the first dust removal box (51) is in contact with the upper surface of the middle layer of paper (200), and the top surface and the bottom surface of the first dust removal box (51) are both provided with a first dust removal port (53) communicated with the inside of the first dust removal box (51).

7. The production embosser for sanitary paper according to claim 6, characterized in that The four ends of the first dust removal box (51) are chamfered.

8. The production embosser for sanitary paper according to claim 7, characterized in that, The second dust removal assembly (6) comprises a second dust removal box (61) and a second air suction pipe (62), the second dust removal box (61) is fixed between the first support plate (41) and the second support plate (42), one end of the second air suction pipe (62) is connected with an external dust collector, the other end is communicated with the second dust removal box (61), the top surface of the second dust removal box (61) is in contact with the lower surface of the middle layer of paper (200), the bottom surface of the second dust removal box (61) is in contact with the upper surface of the lower layer of paper (300), and the top surface and the bottom surface of the second dust removal box (61) are both provided with a second dust removal port (63) communicated with the inside of the second dust removal box (61).

9. The production embosser for sanitary paper according to claim 8, characterized in that, The four ends of the second dust removal box (61) are chamfered.

10. The production embosser for sanitary paper according to claim 9, characterized in that, The glue dipping mechanism (7) comprises a glue tank (71), a glue inlet pipe (72), a glue dipping roller (73), a pressing roller (74), an eleventh rotating shaft (75), a twelfth rotating shaft (76), an eleventh motor (77) and a twelfth motor (78), the glue tank (71) is fixed between the first support plate (41) and the second support plate (42), one end of the glue inlet pipe (72) is communicated with an external glue tank through a pump body, the other end of the glue inlet pipe (72) is communicated with the top end of the side of the glue tank (71), the pressing roller (74) and the glue dipping roller (73) are arranged side by side above and below, the lower half of the glue dipping roller (73) is located in the glue tank (71) and contacts the glue, the eleventh motor (77) and the twelfth motor (78) are fixed on the side of the first support plate (41) away from the second support plate (42), one end of the eleventh rotating shaft (75) is fixedly connected with the output end of the eleventh motor (77), the other end penetrates through the first support plate (41), the pressing roller (74) and the second support plate (42) and is rotationally connected with the second support plate (42), the eleventh rotating shaft (75) is rotationally connected with the first support plate (41), the eleventh rotating shaft (75) is fixedly connected with the pressing roller (74), one end of the twelfth rotating shaft (76) is fixedly connected with the output end of the twelfth motor (78), the other end penetrates through the first support plate (41), the glue dipping roller (73) and the second support plate (42) and is rotationally connected with the second support plate (42), the twelfth rotating shaft (76) is rotationally connected with the first support plate (41), the twelfth rotating shaft (76) is fixedly connected with the glue dipping roller (73), the pressing roller (74) is provided with a ninth groove for placing the first protrusion (400) on the circumference, the glue dipping roller (73) is provided with a seventh protrusion matched with the second protrusion (500) and a ninth groove matched with the second groove (700) on the circumference.

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