Boiling equipment for surface sizing of two-side offset paper

Abstract

The invention relates to the technical field of processing of double-faced paper auxiliary materials, in particular to boiling equipment for surface sizing of double-faced adhesive paper, which comprises a glue boiling tank, a scraping plate, a hollow shaft, a bracket, a driving assembly and a transmission assembly. The glue boiling tank is communicated with the discharging pipe and the feeding hopper; a top cover of the glue boiling tank is rotationally connected with the turntable. A flow guide channel is arranged in the scraper. The hollow shaft penetrates through the rotating disc and is inserted into the glue boiling tank, the hollow shaft is in sliding connection with the rotating disc, and a plurality of stirring paddles are arranged on the hollow shaft. The support is connected with a top cover of the glue boiling tank and rotationally connected with the inner pipe, and the inner pipe is inserted into the hollow shaft and slides in the radial direction of the hollow shaft. The driving assembly drives the turntable to rotate. The transmission assembly is in transmission connection with the turntable and the inner pipe, and when the turntable is in a rotating state, the inner pipe drives the hollow shaft and the stirring paddle to rotate along the direction opposite to the turntable through the transmission assembly and drives the hollow shaft and the stirring paddle to lift back and forth through the transmission assembly. According to the invention, the uniform mixing efficiency of the raw materials in the decocting process is improved, so that the energy consumption of equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of double-sided paper auxiliary material processing, in particular to a boiling device used for applying glue on the surface of double-sided paper. Background Art

[0002] Offset paper refers to paper that has glue applied to both sides of the paper during the papermaking process to improve its surface properties. During the production and processing process, the paper needs to be sizing on the surface, and this type of glue is usually made by heating and mixing starch and water. Starch is used for surface sizing to improve the smoothness of the paper, improve the paper's intelligence and enhance the sensory effects of the paper. At present, the starch boiling equipment has a simple internal structure, and it takes a long time from boiling to glue forming, and the energy consumption is high.

[0003] The technical solution disclosed in the Chinese patent with announcement number CN105664762B is to set a ventilation duct in the connecting shaft. Steam can enter the barrel through the holes on the stirring part and the connecting shaft through the ventilation duct to heat the contents in the barrel. Since there are many heating points for the contents, not only is the heating uniform, but the hollow connecting shaft can also reduce the mass of the connecting shaft and reduce the energy consumption of the boiling equipment.

[0004] However, the device still has some shortcomings: in actual use, the mixing efficiency of the raw materials at the bottom of the barrel and the raw materials on the upper layer is very low, and when starch is added to water, or water is added to starch, agglomeration is likely to occur, and the device is difficult and time-consuming to deblock the lumps, and the glue after boiling is still likely to be mixed with incompletely dissolved lumps. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to provide a boiling device for applying glue on the surface of offset paper.

[0006] The technical solution of the present invention is a boiling device for applying glue on the surface of offset paper, comprising a boiling glue tank, the boiling glue tank is connected to a discharge pipe and a feed hopper, and the top cover of the boiling glue tank is rotatably connected to a turntable.

[0007] The scraper is connected with the rotating disk, and is located inside the glue boiling tank and slides with the inner wall thereof. A guide channel for lifting the bottom raw material is arranged inside the scraper.

[0008] A hollow shaft passes through the turntable and is inserted into the glue boiling tank. The hollow shaft is slidably connected with the turntable, and a plurality of stirring paddles are arranged on the hollow shaft.

[0009] The bracket is connected with the top cover of the glue boiling tank, the bracket is rotatably connected with the inner tube, and the inner tube is inserted into the hollow shaft and slides along the radial direction thereof.

[0010] A driving assembly is connected to the bracket and drives the turntable to rotate.

[0011] And a transmission component, the transmission component is connected to the turntable and the inner tube. When the turntable is rotating, the inner tube drives the hollow shaft and the stirring paddle to rotate in the opposite direction of the turntable through the transmission component, and at the same time drives the hollow shaft and the stirring paddle to reciprocate and rise and fall through the transmission component.

[0012] Preferably, a plurality of spoilers are arranged on the scraper, and the spoilers and the stirring paddles are staggered in layers.

[0013] Preferably, the guide channel includes a feed port and a discharge port connected to the interior thereof, the feed port and the discharge port are both located on the same side of the scraper, and the feed port is arranged at the inclined end where the scraper is fitted with the arc-shaped bottom of the glue boiling tank, and the discharge port is arranged at the vertical end of the scraper.

[0014] Preferably, the hollow shaft is provided with a plurality of air holes connected to the interior thereof, the inner tube is connected to the air holes and the air inlet pipe, and the air inlet pipe is connected to the hot air supply pipe.

[0015] Preferably, the driving assembly includes an inner gear ring, a motor and a gear B. The inner gear ring is connected to the rotating disk and is coaxial with the rotating disk. The gear B is located inside the inner gear ring and meshes with it, and the motor is connected to the bracket and drives the gear B to rotate.

[0016] Preferably, the transmission assembly includes gear A, a reciprocating screw, a limit plate and gear C. Gear A is connected to the inner tube and coaxial with the hollow shaft, the reciprocating screw is coaxially connected to gear B and rotatably connected to the bracket, the limit plate is rotatably connected to the top of the hollow shaft, and the shuttle of the reciprocating screw is connected to the limit plate. Gear C is connected to the top of the reciprocating screw, and gear C is meshed with gear A.

[0017] Preferably, the glue boiling tank is connected to the frame.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] By arranging a scraper and arranging a guide channel in the scraper, during the rotation of the scraper, the raw materials of the bottom layer enter the guide channel and are discharged along the discharge port under the pressure generated during the rotation of the scraper, thereby causing the raw materials of the bottom layer to rise quickly, thereby improving the mixing efficiency of the upper and lower layers of raw materials. In addition, in the present invention, by arranging a transmission component, under the transmission action of the transmission component, the stirring paddle is caused to rotate in the opposite direction of the scraper, thereby increasing the shear frequency of the spoiler and the stirring paddle, thereby playing a role in deblocking. At the same time, under the transmission action of the transmission component, the stirring paddle is also caused to reciprocate up and down, thereby allowing the raw materials of different layers to be taken care of, thereby further improving the mixing and boiling efficiency of the raw materials, thereby reducing the power consumption of boiling glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 The schematic diagram of the internal structure of the glue boiling tank;

[0022] Figure 3 It is a schematic diagram of the connection structure between the hollow shaft and the scraper;

[0023] Figure 4 for Figure 3 Enlarged view of part A.

[0024] Figure numerals: 1. glue boiling tank; 2. discharge pipe; 3. feed hopper; 4. turntable; 401. inner gear ring; 5. scraper; 501. feed port; 502. discharge port; 6. spoiler; 7. hollow shaft; 701. air hole; 702. stirring paddle; 8. bracket; 9. inner tube; 10. air inlet pipe; 11. gear A; 12. motor; 13. reciprocating screw; 14. gear B; 15. limit plate; 16. gear C; 17. frame. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figure 1-Figure 4As shown, the present invention proposes a boiling device for applying glue on the surface of double-sided paper, including a boiling glue tank 1, a scraper 5, a hollow shaft 7, a bracket 8, a driving assembly and a transmission assembly. The boiling glue tank 1 is connected to the frame 17, the boiling glue tank 1 is connected to the discharge pipe 2 and the feed hopper 3, and the top cover of the boiling glue tank 1 is rotatably connected to the turntable 4. The scraper 5 is connected to the turntable 4, the scraper 5 is located inside the boiling glue tank 1 and slides with the inner wall thereof, and a guide channel for lifting the bottom layer of raw materials is arranged inside the scraper 5. The guide channel includes a feed port 501 and a discharge port 502 connected to the inside thereof, the feed port 501 and the discharge port 502 are both located on the same side of the scraper 5, and the feed port 501 is arranged at the oblique end where the scraper 5 fits the arc-shaped bottom of the boiling glue tank 1, and the discharge port 502 is arranged at the vertical end of the scraper 5. The hollow shaft 7 passes through the turntable 4 and is inserted into the glue boiling tank 1. The hollow shaft 7 is slidably connected to the turntable 4, and a plurality of stirring paddles 702 are arranged on the hollow shaft 7. A plurality of spoilers 6 are arranged on the scraper 5, and the spoilers 6 and the stirring paddles 702 are staggered in layers. The bracket 8 is connected to the top cover of the glue boiling tank 1, and the bracket 8 is rotatably connected to the inner tube 9, and the inner tube 9 is inserted into the hollow shaft 7 and slides along its radial direction. The driving assembly includes an inner gear ring 401, a motor 12 and a gear B14. The inner gear ring 401 is connected to the turntable 4, and the inner gear ring 401 is coaxial with the turntable 4. The gear B14 is located on the inner side of the inner gear ring 401 and meshes with it. The motor 12 drives the gear B14 and the turntable 4 to rotate. The transmission assembly includes a gear A11, a reciprocating screw 13, a limit plate 15 and a gear C16. Gear A11 is connected to the inner tube 9 and is coaxial with the hollow shaft 7. The reciprocating screw 13 is coaxially connected to the gear B14 and is rotatably connected to the bracket 8. The body of the motor 12 is connected to the bracket 8, and the output end of the motor 12 is connected to the end of the reciprocating screw 13. The limit plate 15 is rotatably connected to the top of the hollow shaft 7, and the shuttle of the reciprocating screw 13 is connected to the limit plate 15. Gear C16 is connected to the top of the reciprocating screw 13, and gear C16 is meshed with gear A11. The transmission assembly is connected to the turntable 4 and the inner tube 9. When the turntable 4 is rotating, the inner tube 9 drives the hollow shaft 7 and the stirring paddle 702 to rotate in the opposite direction of the turntable 4 through the transmission assembly, and at the same time drives the hollow shaft 7 and the stirring paddle 702 to reciprocate and rise and fall through the transmission assembly.

[0027] In this embodiment, the raw materials are added into the glue boiling tank 1, and the motor 12 is started. The motor 12 drives the reciprocating screw 13 and the gear B14 to rotate, and then drives the inner gear ring 401, the turntable 4 and the scraper 5 to rotate in the same direction as the gear B14 through the gear B14. During the rotation of the scraper 5, the raw materials at the bottom of the inner cavity of the glue boiling tank 1 enter the guide channel along the feed port 501, and are pressed and discharged upward along the discharge port 501 as the scraper 5 rotates, which promotes the alternating displacement of the upper and lower layers of raw materials, thereby improving the mixing efficiency of the raw materials. Since the reciprocating screw 13 continues to rotate, the gear C16 drives the gear A11, the inner tube 9, the hollow shaft 7 and the stirring paddle 702 to rotate synchronously, and the rotation direction of the stirring paddle 702 is opposite to the rotation direction of the spoiler 6, which increases the shear frequency of the two, so that the lumps in the raw materials are chopped, thereby further improving the mixing efficiency of the raw materials. During the rotation of the reciprocating screw 13, the shuttle moves up and down, thereby driving the limit plate 15 to move up and down, and the limit plate 15 drives the hollow shaft 7 and the stirring paddle 702 to move up and down, so that the stirring paddle 702 can stir the raw materials in the glue boiling tank 1 at multiple levels, thereby further improving the glue boiling efficiency of the raw materials.

[0028] Embodiment 2

[0029] like Figure 2 and Figure 3 As shown, the present invention proposes a cooking device for applying glue to the surface of offset paper. Compared with the first embodiment, the hollow shaft 7 is provided with a plurality of air holes 701 connected to the inside thereof, and the air holes 701 are located below the liquid surface. The inner tube 9 connects the air holes 701 and the air inlet pipe 10, and the air inlet pipe 10 connects to the hot air supply pipe.

[0030] In this embodiment, hot air is blown into the glue boiling tank 1 along the air inlet pipe 10, the inner tube 9, the hollow shaft 7 and the air hole 701 through the external hot air supply pipe, the hot air is mixed with the raw material, and as the hollow shaft 7 rotates, the hot air diffuses in a circumferential shape, so that the raw material is heated evenly.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cooking device for applying sizing to the surface of offset paper, characterized in that: include A glue boiling tank (1), the glue boiling tank (1) is connected to a discharge pipe (2) and a feed hopper (3), and a top cover of the glue boiling tank (1) is rotatably connected to a turntable (4); A scraper (5), the scraper (5) is connected to the rotating disk (4), the scraper (5) is located inside the glue boiling tank (1) and slides with the inner wall thereof, and a guide channel for lifting the bottom layer of raw materials is arranged inside the scraper (5); A hollow shaft (7), the hollow shaft (7) passes through the turntable (4) and is inserted into the glue boiling tank (1), the hollow shaft (7) is slidably connected to the turntable (4), and a plurality of stirring paddles (702) are arranged on the hollow shaft (7); A bracket (8), the bracket (8) is connected to the top cover of the glue boiling tank (1), the bracket (8) is rotatably connected to the inner tube (9), and the inner tube (9) is inserted into the hollow shaft (7) and slides along the radial direction thereof; A driving assembly connected to the bracket (8) and driving the turntable (4) to rotate; and a transmission assembly, wherein the transmission assembly is connected to the turntable (4) and the inner tube (9); when the turntable (4) is rotating, the inner tube (9) drives the hollow shaft (7) and the stirring paddle (702) to rotate in the opposite direction of the turntable (4) through the transmission assembly, and at the same time drives the hollow shaft (7) and the stirring paddle (702) to rise and fall reciprocatingly through the transmission assembly.

2. The boiling equipment for surface sizing of offset paper according to claim 1, characterized in that: A plurality of spoilers (6) are arranged on the scraper (5), and the spoilers (6) and the stirring paddles (702) are staggered in layers.

3. The boiling equipment for surface sizing of offset paper according to claim 1, characterized in that: The guide channel comprises a feed inlet (501) and a discharge outlet (502) which are connected to the interior thereof. The feed inlet (501) and the discharge outlet (502) are both located on the same side of the scraper (5), and the feed inlet (501) is arranged at the oblique end where the scraper (5) is in contact with the arc-shaped bottom of the glue boiling tank (1), and the discharge outlet (502) is arranged at the vertical end of the scraper (5).

4. The boiling equipment for surface sizing of offset paper according to claim 1, characterized in that: The hollow shaft (7) is provided with a plurality of air holes (701) connected to the interior thereof, the inner tube (9) is connected to the air holes (701) and the air inlet pipe (10), and the air inlet pipe (10) is connected to the hot air supply pipe.

5. The boiling equipment for surface sizing of offset paper according to claim 1, characterized in that: The driving assembly comprises an inner gear ring (401), a motor (12) and a gear B (14); the inner gear ring (401) is connected to the rotating disk (4), and the inner gear ring (401) and the rotating disk (4) are coaxial; the gear B (14) is located on the inner side of the inner gear ring (401) and meshedly connected therewith; the motor (12) is connected to the bracket (8) and drives the gear B (14) to rotate.

6. The boiling equipment for surface sizing of offset paper according to claim 5, characterized in that: The transmission assembly comprises a gear A (11), a reciprocating screw rod (13), a limit plate (15) and a gear C (16); the gear A (11) is connected to the inner tube (9) and is coaxial with the hollow shaft (7); the reciprocating screw rod (13) is coaxially connected to the gear B (14) and is rotatably connected to the bracket (8); the limit plate (15) is rotatably connected to the top end of the hollow shaft (7), and the shuttle of the reciprocating screw rod (13) is connected to the limit plate (15); the gear C (16) is connected to the top end of the reciprocating screw rod (13), and the gear C (16) is meshingly connected to the gear A (11).

7. The boiling equipment for surface sizing of offset paper according to claim 1, characterized in that: The glue boiling tank (1) is connected to a frame (17).

Images