Device for improving drying efficiency through online punching of raw paper of paper tube

Abstract

A device for improving drying efficiency through online punching of paper tube raw paper relates to a punching device and comprises a paper machine large frame, a rubber roller is horizontally and rotatably arranged on the paper machine large frame, a needle roller is rotatably arranged above the rubber roller, a plurality of needle rings are sleeved on the needle roller in parallel in the axial direction, and a plurality of steel needles are fixedly connected to the outer walls of the needle rings in a surrounding mode. The distance between every two adjacent needle rings can be adjusted, and an adjusting structure for adjusting the distance between the needle roller and the rubber roller is arranged on the large paper machine frame. The utility model solves the problems in the prior art that the energy consumption and the production cost are greatly increased by increasing the number of drying cylinders, prolonging the drying time, increasing the temperature of the drying cylinders and the like, so that the raw paper of the paper tube is always the paper of which the energy consumption and the speed are difficult to break through.

Description

TECHNICAL FIELD

[0001] The utility model relates to punching device, concretely relates to paper tube raw paper on -line punching improves the device of drying efficiency. BACKGROUND

[0002] Paper tube raw paper is a kind of paper material made of paper pulp fiber and a small amount of chemical additives, which can be used to manufacture high-strength fiber tubes, textile yarn tubes, industrial paper tubes for papermaking, paper tubes for plastic film, etc. It is widely used in food industry, automobile manufacturing, textile, packaging and other fields. The main quality indicators of paper tube raw paper include basis weight, thickness, water absorption, interlayer bonding strength, ring pressure strength and moisture, etc. The interlayer bonding strength reflects the firmness of the combination between different layers of paper. High interlayer bonding strength can ensure that there is no delamination problem during the process of rolling paper tube. Ring pressure strength represents the bearing capacity of paper tube raw paper when subjected to ring pressure. Paper tube raw paper with high ring pressure strength is not easy to deform or break, thereby improving the practicality and safety of paper tube.

[0003] To ensure the performance of paper tube raw paper, the grammage of paper tube raw paper is generally high, ranging from 200gsm to 600gsm. In order to ensure the strength index, a large amount of starch is added during the production process. Starch has high water retention and film forming properties, which can seriously hinder the evaporation of water during the drying stage. If the speed is too fast, the water cannot evaporate in time, which may cause unstable production of paper tube raw paper, affecting the quality indicators such as interlayer bonding strength, ring pressure strength, etc., and causing bubble problems on the surface of the finished paper, which seriously affects the use of downstream customers. If the speed is too slow, the production efficiency will be reduced, and more heat is needed to evaporate the water in the paper during the drying process.

[0004] A patent with publication number CN118835482A is disclosed in the prior art, which includes softening water, preparing pulp, sizing, adding auxiliary materials and papermaking. The basis weight of high-strength saturated paper tube raw paper is 200±5g / m2, 240±5g / m2 or 280±5g / m2, the longitudinal dry tensile strength is ≥130N·m / g, the longitudinal wet tensile strength is ≥30N·m / g, the longitudinal ring pressure index is ≥17N·m / g, the interlayer bonding strength is ≥300J / m2, the burst resistance index is ≥3.2Kpa·m2 / g, the smoothness is ≥10s, the moisture is 6.2-6.8%, the water absorption height is ≥70mm / 10min, and the horizontal basis weight difference is ≤1.2%. The high-strength saturated paper tube raw paper has high absorption capacity and uniformity for resin when preparing paper tube, so that the paper tube surface prepared after resin extrusion has high smoothness.

[0005] The existing devices including the above-mentioned patent gradually expose the deficiencies of the prior art with use, mainly in the following aspects:

[0006] The prior art mainly improves by increasing the number of drying cylinders, prolonging drying time and increasing the temperature of the drying cylinder, etc., but this will greatly increase energy consumption and production cost, so the paper tube base paper is a paper series that is difficult to break through in energy consumption and speed.

[0007] In summary, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. Practical new type content

[0008] In view of the defects in the prior art, the present practical new type is used to solve the problem that the paper tube base paper is difficult to break through in energy consumption and speed in the traditional technology by increasing the number of drying cylinders, prolonging drying time and increasing the temperature of the drying cylinder, etc.

[0009] In order to achieve the above purpose, the present practical new type provides the following technical scheme:

[0010] The device for improving drying efficiency of paper tube base paper online punching comprises a paper machine frame, a rubber roller is horizontally rotatably arranged on the paper machine frame, a needle roller is rotatably arranged above the rubber roller, a plurality of needle rings are coaxially arranged on the needle roller, a plurality of steel needles are fixedly arranged on the outer wall of the needle ring, and the distance between adjacent needle rings is adjustably arranged.

[0011] The paper machine frame is provided with an adjusting structure for adjusting the distance between the needle roller and the rubber roller.

[0012] As an optimized scheme, the adjusting structure comprises a top seat fixed on the paper machine frame, two cantilevers are hingedly arranged on the top seat in parallel, and the two ends of the needle roller are rotatably installed on the swing ends of the two cantilevers.

[0013] As an optimized scheme, the top seat is hingedly provided with an extension structure corresponding to each cantilever, and the extension end of the extension structure is hingedly connected to the middle position of the cantilever.

[0014] As an optimized scheme, the swing end of the cantilever is fixedly connected with a roller seat, and the two ends of the needle roller are rotatably installed on the roller seat through a rotating shaft.

[0015] As an optimized scheme, the cantilever is fixedly connected with a driving motor on the outer wall of the swing end through a frame body, and the output shaft of the driving motor is fixedly connected with the end of the rotating shaft through a shaft coupling.

[0016] As an optimized scheme, the outer wall of the needle roller is provided with an external thread section, and the inner ring of the needle ring is provided with an internal thread matched with the external thread section.

[0017] As an optimization scheme, two locking rings are threadedly connected to the needle roller corresponding to each needle ring, and the two locking rings are arranged on the two sides of the needle ring and abut against the side wall of the needle ring.

[0018] As an optimization scheme, the telescopic structure comprises a pneumatic cylinder, an oil cylinder and an electric telescopic cylinder.

[0019] As an optimization scheme, the rubber roller is fixed to the paper machine frame through the base.

[0020] As an optimization scheme, the reinforcing plate is obliquely fixed between the top base and the paper machine frame.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] By installing the punching device at the position between the pressing part and the front drying part, the wet paper sheet with 40-50% dryness is uniformly punched in the direction perpendicular to the tangent of the paper sheet and the rubber roller before entering the front drying part for drying, so that the water evaporation efficiency is effectively improved, the problems of paper bubbles caused by the heat not being evaporated in time due to the sharp drying of the drying part and the limited vehicle speed are solved, the product quality and the operation efficiency are effectively improved.

[0023] The utility model can distinguish the thickness of the paper with different gram weights, adjust the needle punching depth in a targeted manner through the gap adjustment, ensure that the paper strength index meets the requirements, and the compression strength and the deformation amount of the offline customer roll into a tube are not affected. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is a structural schematic view of the needle roller of the utility model.

[0027] In the drawings: 1-paper machine frame, 2-rubber roller, 3-needle roller, 4-top base, 5-telescopic structure; 6-cantilever; 7-roller base; 8-frame body; 9-driving motor; 10-coupling; 11-rotating shaft; 12-outer thread section; 13-needle ring; 14-steel needle; 15-locking ring. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model will be described below in detail with reference to the drawings. The following examples are only used to make the technical scheme of the utility model clearer, and therefore only serve as examples, but cannot limit the protection scope of the utility model.

[0029] As shown in Figure 1 and Figure 2 The device for improving drying efficiency of paper tube raw paper online punching comprises a paper machine main frame 1, a rubber roller 2 horizontally arranged on the paper machine main frame 1, a needle roller 3 rotatably arranged above the rubber roller 2, a plurality of needle rings 13 axially and parallelly sleeved on the needle roller 3, a plurality of steel needles 14 fixedly arranged on the outer wall of the needle ring 13, and an adjustable spacing between adjacent needle rings 13.

[0030] The paper machine main frame 1 is provided with an adjusting structure for adjusting the spacing between the needle roller 3 and the rubber roller 2.

[0031] The adjusting structure comprises a top seat 4 fixed on the paper machine main frame 1, two cantilevers 6 hingedly arranged on the top seat 4 in parallel, and two ends of the needle roller 3 rotatably arranged on the swing ends of the two cantilevers 6.

[0032] The top seat 4 is respectively hingedly provided with an extension structure 5 corresponding to each cantilever 6, and the extension end of the extension structure 5 is hingedly connected to the middle position of the cantilever 6.

[0033] The swing end of the cantilever 6 is fixedly connected with a roller seat 7, and the two ends of the needle roller 3 are rotatably arranged on the roller seat 7 through a rotating shaft 11.

[0034] The cantilever 6 is fixedly connected with a driving motor 9 through a frame body 8 close to the outer wall of the swing end, and the output shaft of the driving motor 9 is fixedly connected with the end of the rotating shaft 11 through a shaft coupling 10.

[0035] The outer wall of the needle roller 3 is provided with an external thread section 12, and the inner ring of the needle ring 13 is provided with an internal thread matched with the external thread section 12.

[0036] Two locking rings 15 are threadedly connected to the needle roller 3 corresponding to each needle ring 13, and the two locking rings 15 are arranged on the two sides of the needle ring 13 and abut against the side wall of the needle ring 13.

[0037] The extension structure 5 comprises an air cylinder, an oil cylinder and an electric telescopic cylinder.

[0038] The rubber roller 2 is fixedly connected to the paper machine main frame 1 through a base.

[0039] The top seat 4 and the paper machine main frame 1 are fixedly connected with a reinforcing plate in an inclined manner.

[0040] The working principle of the device is as follows:

[0041] By installing the punching device at the position between the press part and the front drying part, the wet paper sheet with 40-50% dryness is evenly punched in the direction perpendicular to the tangent of the paper sheet and the rubber roller 2 before entering the front drying part, so that the water evaporation efficiency is effectively improved, the problems of paper bubble and speed limitation caused by the heat not being evaporated in time due to the sharp drying of the drying part are solved, the product quality and the operation efficiency are effectively improved;

[0042] Wherein, the punching density is adjusted according to the different basis weight of the raw paper by adjusting the position of the needle ring 13;

[0043] The distance between the needle roller 3 and the rubber roller 2 is adjusted by the telescopic structure 5 and the cantilever 6, so that the punching depth is adjusted;

[0044] The utility model can adjust the punching depth according to the thickness of the paper with different basis weight, so that the strength index of the paper meets the requirements, and the compression strength and the deformation after the paper is rolled into a tube are not affected.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the description of the utility model.

Claims

1. A device for improving drying efficiency by online perforation of paper tube base paper, characterized in that: The paper machine includes a paper machine frame (1), on which a rubber roller (2) is horizontally rotatably mounted. Above the rubber roller (2) is a needle roller (3) rotatably mounted. Several needle rings (13) are mounted side by side along the axial direction on the needle roller (3). Several steel needles (14) are fixedly attached to the outer wall of the needle rings (13). The spacing between adjacent needle rings (13) is adjustable. The paper machine frame (1) is provided with an adjustment structure for adjusting the distance between the needle roller (3) and the rubber roller (2).

2. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 1, characterized in that: The adjustment structure includes a top seat (4) fixed on the paper machine frame (1), and two cantilever arms (6) are hinged side by side on the top seat (4). The two ends of the needle roller (3) are rotatably mounted on the swing ends of the two cantilever arms (6).

3. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 2, characterized in that: The top seat (4) is hinged to each of the cantilever (6) with a telescopic structure (5), and the extended end of the telescopic structure (5) is hinged to the middle position of the cantilever (6).

4. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 3, characterized in that: A roller seat (7) is fixedly connected to the swing end of the cantilever (6), and the two ends of the needle roller (3) are rotatably mounted on the roller seat (7) by means of a rotating shaft (11).

5. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 4, characterized in that: A drive motor (9) is fixedly connected to the outer wall of the cantilever (6) near the swing end by a frame (8). The output shaft of the drive motor (9) is fixedly connected to the end of the rotating shaft (11) by a coupling (10).

6. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 5, characterized in that: The outer wall of the needle roller (3) is provided with an external thread section (12), and the inner ring of the needle ring (13) is provided with an internal thread that matches the external thread section (12).

7. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 6, characterized in that: The needle roller (3) has two locking rings (15) threadedly connected to each needle ring (13). The two locking rings (15) are located on both sides of the needle ring (13) and are abutted against the side wall of the needle ring (13).

8. The apparatus for improving drying efficiency by online perforation of paper tube base paper according to claim 7, characterized in that: The telescopic structure (5) includes a cylinder, a hydraulic cylinder, and an electric telescopic cylinder.

9. The device for improving drying efficiency by online perforation of paper tube base paper according to claim 8, characterized in that: The rubber roller (2) is fixed to the paper machine frame (1) via a base.

10. The apparatus for improving drying efficiency by online perforation of paper tube base paper according to claim 9, characterized in that: A reinforcing plate is obliquely fixed between the top seat (4) and the paper machine frame (1).

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