A wet paper drying apparatus

Abstract

A kind of wet paper drying equipment preventing edge lifting, the present application relates to papermaking processing equipment technical field, drying roller, guide roller are rotated and set on rack by bearing, and guide roller is set on the left side of drying roller top, mounting mechanism is set on rack, blowing mechanism is set between drying roller and guide roller, and blowing mechanism is set on mounting mechanism;It is by setting multiple groups of adjustable position of air outlet structure, and setting corresponding adjusting positioning structure, to realize the air blowing balance air pressure to the back of paper when paper is discharged from drying roller, to solve the problem of paper edge lifting when paper is discharged.

Description

Technical Field

[0001] This invention relates to the field of paper processing equipment technology, specifically to a wet paper drying device to prevent edge blowing. Background Technology

[0002] Paper production involves drying the formed wet paper using drying rollers, vacuum rollers, etc. The wet paper is dried by the drying rollers, and then the dried paper is discharged from the drying rollers through guide rollers and sent to the subsequent processing. After drying on the drying rollers, the wet paper sticks to the drying wire of the drying rollers. When the paper is separated from the drying wire, the air permeability of the drying wire is insufficient to compensate for the negative pressure generated on the back of the paper when it is separated, which can easily cause the paper to flake or even tear. There is a structural solution to solve the problem of flakes by setting an adjustable pressure air pipe at the edge of the discharge drying roller, so that air is blown at the edge of the drying wire when the paper is discharged, thereby supplementing the air on the back of the paper and forming a pressure balance on both sides of the paper, thus solving the problem of flakes when the paper is discharged. Based on the above technical solution, corresponding improvements are made to optimize the equipment structure and improve the standardization and standardized operation of the equipment. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a wet paper drying device that prevents paper from fluttering at the edges. This device uses multiple adjustable air outlet structures and corresponding adjustment and positioning structures to balance the air pressure by blowing air onto the back of the paper as it exits the drying roller, thereby solving the problem of paper fluttering at the edges.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] It includes a frame, drying rollers, and guide rollers, wherein the drying rollers and guide rollers are both screwed onto the frame via bearings, and the guide rollers are located on the upper left side of the drying rollers. It also includes:

[0006] The mounting mechanism is mounted on the frame.

[0007] The air blowing mechanism is disposed between the drying roller and the guide roller, and is mounted on the mounting mechanism.

[0008] Preferably, the mounting mechanism comprises:

[0009] A support shaft is fixedly mounted on the frame.

[0010] Mounting bracket, wherein the mounting bracket is spun onto the support shaft via bearings;

[0011] The support rod is fixedly mounted on the mounting frame, and the axis of the support rod is parallel to the axis of the drying roller.

[0012] The mounting base consists of several units, which are equidistantly arranged and movably fitted onto the support rod.

[0013] Preferably, the air blowing mechanism comprises:

[0014] A balancing air chamber, which is fixedly mounted on a mounting base;

[0015] The air nozzle is inserted and fixed on the upper wall of the balance air chamber, and the port of the air nozzle is movably abutted against the outer surface of the drying roller.

[0016] The air duct is fixedly mounted on the mounting frame, and the balance air chamber is connected in parallel to the air duct via a pipe.

[0017] A throttle valve is fixedly mounted on a mounting bracket and connected in series on the air guide pipe.

[0018] Preferably, a main gear is sleeved and fixed on the support shaft, and a handle shaft is spun onto the mounting bracket via a bearing. A secondary gear is fixedly mounted on the handle shaft, and the secondary gear meshes with the main gear.

[0019] Preferably, a connecting handle is spun onto the handle shaft via a bearing, a limiting bracket is movably inserted into the connecting handle, an adjusting handle is fixedly mounted on the end of the limiting bracket away from the handle shaft, a limiting ratchet is fixedly mounted on the handle shaft, the limiting bracket is movably sleeved on the limiting ratchet, a pawl is fixedly mounted on the limiting bracket and the pawl is configured to cooperate with the limiting ratchet, a tension spring is fixedly mounted on the limiting bracket, and the other end of the tension spring is fixedly mounted on the end of the connecting handle located on the handle shaft.

[0020] Preferably, a connecting shaft is fixedly provided on the mounting base, and two transmission rods are spun onto the connecting shaft via bearings, with the two transmission rods arranged crosswise. The adjacent ends of the transmission rods on adjacent mounting bases are spun together via rotating shafts. A support seat is fixedly provided on the connecting shaft, and the support seat is movably sleeved on the support rod.

[0021] Preferably, the mounting bracket is provided with two lead screws screwed on by bearings, and the two lead screws are respectively located on the upper and lower sides of the support rod. The lead screws are fitted with threaded sleeves, the threaded sleeves on the upper lead screws are fixedly mounted on the frontmost support seat, and the threaded sleeves on the lower lead screws are fixedly mounted on the rearmost support seat.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This device uses a set of multiple air nozzles connected in parallel to blow air at the point where the paper leaves the dry paper mesh on the guide roller when it is transferred from the drying roller to the guide roller. This balances the air pressure on the back of the paper and prevents the paper from fluttering or breaking when it leaves the guide roller.

[0024] 2. This device has a mounting frame set on the machine frame via a support shaft, and the mounting base is set on the mounting frame via a support rod. The air nozzle is set on the mounting base. The connection between adjacent mounting bases is achieved through a transmission rod, thereby enabling the adjustment of the air nozzle position. The position and density of the air nozzle can be adjusted according to the specific paper guiding and feeding scheme. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 yes Figure 1 The top left side view.

[0027] Figure 3 yes Figure 1 The lower left side view.

[0028] Figure 4 yes Figure 1 The bottom right side view.

[0029] Figure 5 This is a schematic diagram of the support rod and mounting base in this invention.

[0030] Figure 6 This is a schematic diagram of the mounting bracket and adjustment handle in this invention.

[0031] Figure 7 This is a schematic diagram of the mounting base and transmission rod in this invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Frame; 2. Drying roller; 3. Guide roller; 4. Mounting mechanism; 4-1. Support shaft; 4-2. Mounting bracket; 4-3. Support rod; 4-4. Mounting seat; 5. Air blowing mechanism; 5-1. Balance air chamber; 5-2. Air nozzle; 5-3. Air guide pipe; 5-4. Throttling valve; 6. Main gear; 7. Handle shaft; 8. Secondary gear; 9. Connecting handle; 10. Limiting bracket; 11. Adjusting handle; 12. Limiting ratchet; 13. Pawl; 14. Tension spring; 15. Support shaft; 16. Transmission rod; 17. Support seat; 18. Lead screw; 19. Threaded sleeve. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1-7 As shown, the specific implementation adopts the following technical solution:

[0036] It includes a frame 1, a drying roller 2, and a guide roller 3, wherein the drying roller 2 and the guide roller 3 are both screwed onto the frame 1 via bearings, and the guide roller 3 is located above and to the left of the drying roller 2. It also includes:

[0037] Mounting mechanism 4 is mounted on frame 1;

[0038] Air blowing mechanism 5 is disposed between drying roller 2 and guide roller 3, and is also disposed on mounting mechanism 4;

[0039] Installation mechanism 4 includes:

[0040] Support shaft 4-1, wherein the support shaft 4-1 is fixedly mounted on the frame 1;

[0041] Mounting bracket 4-2 is screwed onto support shaft 4-1 via bearings;

[0042] Main gear 6, which is fixedly mounted on support shaft 4-1;

[0043] The handle shaft 7 is screwed onto the mounting bracket 4-2 via a bearing;

[0044] The auxiliary gear 8 is fixedly mounted on the handle shaft 7 and meshes with the main gear 6.

[0045] Connecting handle 9, which is screwed onto handle shaft 7 via bearing;

[0046] The limiting frame 10 is slidably disposed on the connecting handle 9 and is sleeved on the outside of the handle shaft 7.

[0047] Adjusting handle 11, wherein the adjusting handle 11 is fixedly mounted on the limiting frame 10;

[0048] A limiting ratchet 12 is fixedly mounted on the handle shaft 7.

[0049] Pawl 13, wherein the pawl 13 fixes the dormitory head hi on the limiting frame 10, and the pawl 13 is configured to cooperate with the limiting ratchet 12;

[0050] The tension spring 14 is fixedly mounted on the limiting frame 10, and the other end of the tension spring 14 is fixedly mounted on the connecting handle 9;

[0051] Support rod 4-3 is fixedly mounted on mounting frame 4-2, and the axis of support rod 4-3 is parallel to the axis of drying roller 2;

[0052] Mounting base 4-4, there are several mounting bases 4-4, and the mounting bases 4-4 are arranged at equal intervals in front and behind;

[0053] Connecting shaft 15, which is fixedly mounted on mounting base 4-4;

[0054] Support base 17, the support base 17 is fixedly mounted on the connecting shaft 15, and the support base 17 is movably sleeved on the support rod 4-3;

[0055] The transmission rod 16 is arranged in pairs and screwed onto the connecting shaft 15 via bearings. The two transmission rods 16 in a pair are arranged crosswise, and the adjacent ends of the transmission rods 16 on the adjacent mounting seats 4-4 are screwed together by rotating shafts.

[0056] Two lead screws 18 are screwed onto the mounting bracket 4-2 via bearings, and the lead screws 18 are respectively located at the upper and lower ends of the support rod 4-3;

[0057] Threaded sleeve 19, there are two threaded sleeves 19 and they are respectively threaded and fitted on the upper and lower screws 18. The upper threaded sleeve 19 is fixedly installed on the frontmost support seat 17, and the lower threaded sleeve 19 is fixedly installed on the rearmost support seat 17.

[0058] The air blowing mechanism 5 includes:

[0059] The balance air chamber 5-1 is fixedly mounted on the mounting base 4-4;

[0060] Air nozzle 5-2 is inserted and fixed on the upper wall of the balance air chamber 5-1, and the port of air nozzle 5-2 is movably abutted against the outer surface of the drying roller 2.

[0061] The air duct 5-3 is fixedly mounted on the mounting frame 4-2, and the balance air chamber 5-1 is connected in parallel to the air duct 5-3 through a pipe;

[0062] Throttling valve 5-4 is fixedly mounted on mounting bracket 4-2 and connected in series on air guide pipe 5-3.

[0063] When using this device, wet paper is dried by the drying roller 2. The dried paper then detaches from the drying roller 2 and is guided by the guide roller 3 to enter the subsequent processing flow. When the paper detaches from the drying wire on the drying roller 2, a negative pressure is formed between the paper and the drying wire. At this time, supplementary air is blown into the space between the paper and the drying wire of the drying roller 2 through the air nozzle 5-2, allowing the paper to detach from the drying roller 2 and enter the guide roller 3 under normal air pressure. An external air pump supplies air to the air pipe 5-3 through the throttle valve 5-4. The air in the air pipe 5-3 enters the balance air chamber 5-1 through a pipeline and is blown out through the air nozzle 5-2 after balancing the pressure. Adjusting the front and rear positions of the air nozzles 5-2 and the density between them involves rotating the upper and lower lead screws 18 to move the threaded sleeves 19 on each lead screw 18. When the two threaded sleeves 19 move the same distance in the same direction, the mounting base 4-4 and the air nozzles 5-2 are moved to one side. The distance between the two threaded sleeves 19 is adjusted accordingly. When the distance changes, the spacing between each mounting seat 4-4 is adjusted. When the threaded sleeve 19 moves the mounting seat 4-4, the adjacent mounting seats 4-4 are transmitted through the transmission rod 16, achieving synchronous movement between all the mounting seats 4-4. When selecting to discharge material from the upper side of the guide roller 3, the position of the air nozzle 5-2 is adjusted, and the adjusting handle 11 is pulled so that the adjusting handle 11 drives the pawl 13 on the limit frame 10 to engage with the limit ratchet on the handle shaft 7. 12 meshes, thereby driving the handle shaft 7 to rotate through the adjusting handle 11. The handle shaft 7 drives the secondary gear 8 to rotate. The secondary gear 8 rotates on the fixed main gear 6, thereby driving the mounting frame 4-2 to rotate through the secondary gear 8 and the handle shaft 7. The mounting frame 4-2 rotates around the support shaft 4-1, thereby driving the air nozzle 5-2 to rotate around the outside of the drying roller 2 to adjust the position of the air nozzle 5-2. When the adjusting handle 11 is not tightened, rotating the adjusting handle 11 only drives the connecting handle 9 to rotate on the handle shaft 7.

[0064] Compared with the prior art, the beneficial effects of the present invention are:

[0065] 1. This device sets up a set of multiple air nozzles 5-2 in parallel, so as to blow air at the point where the paper leaves the dry paper wire on the guide roller 3 when the paper is transferred from the drying roller 2 to the guide roller 3, thereby balancing the air pressure on the back of the paper and preventing the paper from fluttering or breaking when it leaves the guide roller.

[0066] 2. This device has a mounting frame 4-2 set on the frame 1 via a support shaft 4-1, so that the mounting base 4-4 is set on the mounting frame 4-2 via a support rod 4-3, and the air nozzle 5-2 is set on the mounting base 4-4. The connection between adjacent mounting bases 4-4 is realized through the transmission rod 16, so that the position of the air nozzle 5-2 can be adjusted, and the position and density of the air nozzle 5-2 can be adjusted according to the specific paper guiding and feeding scheme.

[0067] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A wet paper drying device for preventing edge floating, comprising a frame (1), a drying roller (2), and a guide roller (3), wherein the drying roller (2) and the guide roller (3) are both screwed onto the frame (1) via bearings, and the guide roller (3) is positioned above and to the left of the drying roller (2); characterized in that, It also includes: The mounting mechanism (4) is mounted on the frame (1); Air blowing mechanism (5), wherein the air blowing mechanism (5) is disposed between the drying roller (2) and the guide roller (3), and the air blowing mechanism (5) is disposed on the mounting mechanism (4); The installation mechanism (4) includes: Support shaft (4-1), the support shaft (4-1) is fixedly mounted on the frame (1); Mounting bracket (4-2), which is screwed onto the support shaft (4-1) via bearings; The support rod (4-3) is fixedly mounted on the mounting frame (4-2), and the axis of the support rod (4-3) is parallel to the axis of the drying roller (2). Mounting base (4-4), there are several mounting bases (4-4), and the mounting bases (4-4) are equidistantly arranged front and back and movably sleeved on the support rod (4-3); The air blowing mechanism (5) includes: The balancing air chamber (5-1) is fixedly mounted on the mounting base (4-4); Air nozzle (5-2), the air nozzle (5-2) is inserted and fixed on the upper wall of the balance air chamber (5-1), and the port of the air nozzle (5-2) is movably abutted against the outer surface of the drying roller (2); The air duct (5-3) is fixedly mounted on the mounting frame (4-2), and the balance air chamber (5-1) is connected in parallel to the air duct (5-3) through a pipe; Throttling valve (5-4), wherein the throttle valve (5-4) is fixedly mounted on the mounting bracket (4-2), and the throttle valve (5-4) is connected in series on the air guide pipe (5-3); A main gear (6) is fixedly mounted on the support shaft (4-1), and a handle shaft (7) is spun on the mounting bracket (4-2) via a bearing. A secondary gear (8) is fixedly mounted on the handle shaft (7), and the secondary gear (8) meshes with the main gear (6). A connecting handle (9) is spun onto the handle shaft (7) via a bearing. A limiting frame (10) is movably inserted into the connecting handle (9). An adjusting handle (11) is fixedly installed on one end of the limiting frame (10) away from the handle shaft (7). A limiting ratchet (12) is fixedly installed on the handle shaft (7). The limiting frame (10) is movably sleeved on the limiting ratchet (12). A pawl (13) is fixedly installed on the limiting frame (10), and the pawl (13) is configured to cooperate with the limiting ratchet (12). A tension spring (14) is fixedly installed on the limiting frame (10). The other end of the tension spring (14) is fixedly installed on one end of the connecting handle (9) located on the handle shaft (7). A connecting shaft (15) is fixedly installed on the mounting base (4-4). Two transmission rods (16) are spun onto the connecting shaft (15) via bearings, and the two transmission rods (16) are arranged crosswise. The adjacent ends of the transmission rods (16) on adjacent mounting bases (4-4) are spun onto a rotating shaft. A support base (17) is fixedly installed on the connecting shaft (15), and the support base (17) is movably sleeved on the support rod (4-3). The mounting bracket (4-2) is provided with two lead screws (18) screwed on by bearings, and the two lead screws (18) are respectively set on the upper and lower sides of the support rod (4-3). The lead screws (18) are provided with threaded sleeves (19) through threaded sleeves (19). The threaded sleeves (19) on the upper lead screw (18) are fixedly set on the support seat (17) at the frontmost side, and the threaded sleeves (19) on the lower lead screw (18) are fixedly set on the support seat (17) at the rearmost side.

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