Gluing device with metering and gluing mechanism

Abstract

The invention relates to the technical field of papermaking production equipment, in particular to a sizing device with a metering sizing mechanism, which comprises a sizing box and a metering sizing mechanism, one side wall of the sizing box is provided with a sizing opening; the metering sizing mechanism is arranged in the sizing opening, the metering sizing mechanism comprises a fine-fluted surface glue stick, two end covers located at the two ends of the fine-fluted surface glue stick and protective covers located on the upper side and the lower side of the fine-fluted surface glue stick, the fine-fluted surface glue stick is rotationally connected with the two end covers, and the two ends of the two protective covers are fixedly connected with the two end covers respectively; according to the invention, the thin-grooved surface glue sticks are used as a glue solution transfer mechanism, the thickness of the glue solution on the surface of the gluing roller can be controlled by arranging the thin-grooved surface glue sticks with different specifications, and compared with the traditional technology, the glue solution thickness can be more conveniently and accurately controlled, and the paper gluing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of paper production equipment, in particular to a gluing device with a metering gluing mechanism. Background Art

[0002] Surface sizing is a critical process in the papermaking process. The surface sizing process is to transfer the dilute glue to the surface of the paper web, thereby forming a layer of starch glue covering the paper surface. In this process, a large amount of water enters the paper along with the glue, the dryness of the paper decreases, and the strength also decreases accordingly.

[0003] Specifically, when producing thin paper, since the strength of thin paper itself is relatively low, this change will cause paper defects such as folding, and in severe cases, it will cause paper breakage, reducing production efficiency. Nowadays, the surface sizing device for papermaking generally includes a glue box and a glue roller, wherein the glue box is used to store glue liquid, and the glue roller is used to contact the glue liquid so that the surface of the glue roller is covered with glue liquid, and the glue roller is also in contact with the paper sheet, so as to apply the glue liquid on the surface of the paper sheet.

[0004] However, in order to control the thickness of the glue on the surface of the glue roller, the prior art generally uses a scraper plate close to or in contact with the glue roller to scrape off the excess glue on the surface of the glue roller. However, this method requires precise control of the gap width between the scraper plate and the glue roller. If you are not careful, it will cause a deviation in the thickness of the glue on the surface of the glue roller, thereby affecting the gluing effect. To this end, we propose a gluing device with a metering gluing mechanism to effectively solve the above disadvantages. Summary of the invention

[0005] The object of the present invention is to provide a glue application device with a metering glue application mechanism, so as to solve the problems raised in the above background technology.

[0006] The present invention is realized by the following technical scheme: a gluing device with a metering gluing mechanism, comprising:

[0007] A glue box, wherein a side wall of the glue box has a glue opening;

[0008] A metering glue applying mechanism, the metering glue applying mechanism is arranged in the glue application opening, the metering glue applying mechanism comprises a fine grooved surface glue stick, two end caps located at both ends of the fine grooved surface glue stick, and protective covers located at the upper and lower sides of the fine grooved surface glue stick, the fine grooved surface glue stick is rotatably connected to the two end caps, the two ends of the two protective covers are respectively fixedly connected to the two end caps, and the end caps are fixedly connected to the glue application box, and the surface of the fine grooved surface glue stick is provided with a plurality of glue applying grooves along its circumference, and the plurality of glue applying grooves are evenly spaced;

[0009] A glue roller, which is rotatably arranged outside the glue box and is in close contact with the fine grooved glue stick;

[0010] Wherein, a glue supply mechanism is also provided inside the glue box, and the glue outlet end of the glue supply mechanism points to the fine groove surface glue stick.

[0011] Optionally, the glue supply mechanism includes a connecting frame, which has a U-shaped structure. The two ends of the connecting frame are respectively connected to two end covers. The glue supply mechanism also includes a glue supply part, which is located on the inner side of the connecting frame. A glue application cavity is formed inside the glue supply part. A glue outlet nozzle communicating with the glue application cavity is provided on one side of the glue supply part facing the fine groove surface glue rod.

[0012] Optionally, the glue supply portion is located at an obliquely upper position of the fine-grooved surface glue stick, and the glue outlet nozzle is inclined downward to point toward the fine-grooved surface glue stick.

[0013] Optionally, the glue supply mechanism also includes a scraper plate, which is elastically arranged on the inner side of the connecting frame through an elastic member, and the scraper plate is located obliquely below the fine-grooved surface glue stick, and one end of the scraper plate is in contact with the fine-grooved surface glue stick. The scraper plate is also provided with a plurality of glue leakage holes so that the glue on the upper surface of the scraper plate can pass through the glue leakage holes and drip to the bottom of the scraper plate.

[0014] Optionally, one end of the glue supply part is provided with a glue application tube communicating with the glue application cavity, one end of the glue application box is provided with a glue supply tube, and the other end of the glue application box is provided with a glue discharge tube, wherein the glue supply tube is connected to the glue application tube.

[0015] Optionally, two ends of the fine-grooved surface glue stick are rotatably connected to two end covers and fit together, and a fixing ear is provided on a side of the end cover facing away from the fine-grooved surface glue stick, and the fixing ear is fixedly connected to the outer wall of the glue box.

[0016] Optionally, the inner surface of the protective cover matches the outer surface of the fine-grooved surface glue stick, the length of the glue application roller is shorter than the length of the protective cover, and the glue application roller is located between two end covers.

[0017] Optionally, a glue scraping cavity is opened on the inner top surface of a protective cover located above the fine-grooved surface glue stick, and a glue scraping cover is provided at the bottom of the glue scraping cavity. The glue scraping cover is in contact with the outer surface of the fine-grooved surface glue stick, and a plurality of glue scraping protrusions are evenly spaced on the bottom surface of the glue scraping cover. The glue scraping protrusions correspond one-to-one to the glue application grooves of the fine-grooved surface glue stick, and the glue scraping protrusions are embedded in the corresponding glue application grooves.

[0018] Optionally, a glue inlet is opened through the glue scraper cover, the glue scraper protrusion is located on one side of the bottom surface of the glue inlet, and the side of the glue scraper protrusion close to the glue inlet has a slope, so that the glue in the glue application groove can enter the glue scraper cavity along the slope of the glue scraper protrusion and the glue inlet.

[0019] Optionally, the end cover and the protective cover are jointly provided with a through hole communicating with the scraper cavity, the through hole is located inside the glue box, and the through hole is used to allow the glue in the scraper cavity to overflow; the scraper cavity is also provided with an electric heating component, and the electric heating component is used to heat the glue entering the scraper cavity.

[0020] Compared with the prior art, the present invention provides a gluing device with a metering gluing mechanism, which has the following beneficial effects:

[0021] 1. The present invention adopts a fine groove surface glue stick as a transfer mechanism for the glue liquid. By setting fine groove surface glue sticks of different specifications, the thickness of the glue liquid on the surface of the glue roller can be controlled. Compared with the traditional technology, the present invention can more conveniently and accurately control the thickness of the glue liquid and improve the gluing effect of the paper sheet;

[0022] 2. The present invention also has a scraper that can abut against the fine groove surface glue stick to scrape off excess glue and keep the glue in the glue tank, thereby improving the glue application accuracy;

[0023] 3. The present invention also has a glue scraping cover box and a glue scraping protrusion, which can scrape the glue in the glue application groove, thereby preventing the glue from solidifying and accumulating inside the glue application groove and sealing the glue application groove, which further helps to improve the glue application effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the glue box and the metering glue application mechanism of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the glue box of the present invention;

[0027] Figure 4 It is a schematic diagram of the metering glue dispensing mechanism of the present invention;

[0028] Figure 5 It is a cross-sectional view of the metering glue dispensing mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the scraper cover of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the scraper of the present invention;

[0031] Figure 8 for Figure 4 The corresponding figure is enlarged at point A in the middle.

[0032] In the figure: 100, glue box; 101, glue opening; 102, glue supply hose; 200, metering glue application mechanism; 201, fine grooved glue stick; 202, end cover; 203, protective cover; 204, glue application groove; 205, fixing ear; 206, glue scraping cavity; 207, glue scraping cover; 208, glue scraping protrusion; 209, glue inlet; 210, penetration hole; 211, electric heating component; 300, glue application roller; 400, glue supply mechanism; 401, connecting frame; 402, glue supply unit; 403, glue application cavity; 404, glue outlet nozzle; 405, glue scraping plate; 406, elastic member; 407, glue leakage hole; 408, glue application hose. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 - Figure 8 A gluing device with a metering gluing mechanism comprises a gluing box 100, a metering gluing mechanism 200 and a gluing roller 300, wherein a side wall of the gluing box 100 has a gluing opening 101; the metering gluing mechanism 200 is arranged in the gluing opening 101, and the metering gluing mechanism 200 comprises a fine grooved surface glue stick 201, two end covers 202 located at both ends of the fine grooved surface glue stick 201, and protective covers 203 located at the upper and lower sides of the fine grooved surface glue stick 201, the fine grooved surface glue stick 201 is rotatably connected to the two end covers 202, the two ends of the two protective covers 203 are respectively fixedly connected to the two end covers 202, and the end covers 202 are fixedly connected to the gluing box 100.

[0035] The surface of the fine-grooved surface glue stick 201 is provided with a plurality of glue application grooves 204 along its circumference, and the plurality of glue application grooves 204 are evenly spaced. The glue application grooves 204 are annular groove bodies. Specifically in the present embodiment, the diameter of the fine-grooved surface glue stick is 25 mm, and the depth of the glue application grooves 204 is 0.095-0.100 mm. In addition, a glue supply mechanism 400 is further provided inside the glue box 100, and the glue outlet end of the glue supply mechanism 400 points to the fine-grooved surface glue stick 201, so as to apply glue to the surface of the fine-grooved surface glue stick 201.

[0036] Furthermore, the glue roller 300 is rotatably arranged outside the glue box 100 and is in close contact with the fine grooved surface glue stick 201; the glue roller 300 is driven to rotate by an external power source, and when the glue roller 300 rotates, the fine grooved surface glue stick 201 can be driven to rotate synchronously through the contact force between the glue roller 300 and the fine grooved surface glue stick 201, so that the glue is attached to the surface of the glue roller 300. Since the glue roller 300 is in contact with the paper sheet, the glue on its surface is finally transferred to the paper surface, completing the surface gluing operation.

[0037] The structure of the glue supply mechanism 400 is described below:

[0038] The glue supply mechanism 400 includes a connecting frame 401, which is in a U-shaped structure. The two ends of the connecting frame 401 are respectively connected to the two end covers 202, and the connecting frame 401 is located on the inner side of the glue box 100; the glue supply mechanism 400 also includes a glue supply part 402, which is located on the inner side of the connecting frame 401, and the glue supply part 402 forms a glue application cavity 403 inside. The glue supply part 402 is provided with a glue outlet 404 that communicates with the glue application cavity 403 on one side facing the fine groove surface glue stick 201. The glue supply part 402 is located at an obliquely upper position of the fine groove surface glue stick 201, and the glue outlet 404 is tilted downward and points to the fine groove surface glue stick 201. When the glue application cavity 403 is filled with glue, the glue can flow out to the surface of the fine groove surface glue stick 201 through the glue outlet 404.

[0039] The glue supply mechanism 400 further includes a scraper plate 405, which is elastically arranged on the inner side of the connecting frame 401 through an elastic member 406, and is located at a position obliquely below the fine grooved surface glue stick 201, and one end of the scraper plate 405 abuts against the fine grooved surface glue stick 201, and a plurality of leaking holes 407 are also provided on the scraper plate 405, so that the glue on the upper surface of the scraper plate 405 passes through the leaking holes 407 and drips below the scraper plate 405. It should be noted that the scraper plate 405 is slidably matched with the connecting frame 401 through the guide rod, and the elastic member 406 is a spring, which provides elastic force to the scraper plate 405 so that it abuts against the surface of the fine grooved surface glue stick 201.

[0040] In addition, a glue application tube 408 communicating with the glue application cavity 403 is provided at one end of the glue supply part 402, a glue supply tube 102 is provided at one end of the glue box 100, and a glue discharge tube is provided at the other end of the glue box 100, wherein the glue supply tube 102 is connected to the glue application tube 408 through a hose. In specific applications of this embodiment, glue is supplied to the glue supply part 402 through the glue supply tube 102, and when the glue flows out of the glue outlet 404, a part of the glue adheres to the fine groove surface glue stick 201, and the other part of the glue drips into the interior of the glue box 100, and is finally discharged through the glue discharge tube for secondary use.

[0041] It should be noted that the two ends of the fine grooved surface glue stick 201 are rotatably connected to the two end caps 202 and fit each other. The end cap 202 is provided with a fixing ear 205 on the side facing away from the fine grooved surface glue stick 201. The fixing ear 205 is fixedly connected to the outer wall of the glue box 100 by bolts. The inner surface of the protective cover 203 matches the outer surface of the fine grooved surface glue stick 201. The length of the glue roller 300 is shorter than the length of the protective cover 203, and the glue roller 300 is located between the two end caps 202. The fine grooved surface glue stick 201 fits with the end caps 202 and the protective cover 203, which prevents glue from overflowing from the external gap of the fine grooved surface glue stick 201, thereby polluting the external environment.

[0042] In another embodiment of the present application, a protective cover 203 located above the fine grooved surface glue stick 201 has a scraping glue cavity 206 formed on its inner top surface, and a scraping glue cover 207 is provided at the bottom of the scraping glue cavity 206. The scraping glue cover 207 fits the outer surface of the fine grooved surface glue stick 201, and a plurality of scraping glue protrusions 208 are evenly spaced on the bottom surface of the scraping glue cover 207. The scraping glue protrusions 208 correspond to the glue application grooves 204 of the fine grooved surface glue stick 201 one by one, and the scraping glue protrusions 208 are embedded in the corresponding glue application grooves 204. The scraping glue protrusions 208 abut against the inner surface of the glue application grooves 204, and when the fine grooved surface glue stick 201 rotates clockwise, the scraping glue protrusions 208 are used to prevent the glue in the glue application grooves 204 from entering the interior of the glue box 100.

[0043] A glue inlet 209 is formed through the glue scraping cover 207, and a glue scraping protrusion 208 is located on one side of the bottom surface of the glue inlet 209. The side of the glue scraping protrusion 208 close to the glue inlet 209 has an inclined surface, so that the glue in the glue application groove 204 can enter the glue scraping cavity 206 along the inclined surface of the glue scraping protrusion 208 and the glue inlet 209. When the fine groove surface glue stick 201 rotates clockwise, any part of the surface of the fine groove surface glue stick 201 always passes through the glue inlet 209 first, and then passes through the glue scraping protrusion 208.

[0044] Furthermore, the end cap 202 and the protective cover 203 are provided with a through hole 210 which is in communication with the scraping glue cavity 206. The through hole 210 is located inside the glue box 100 and is used to allow the glue in the scraping glue cavity 206 to overflow. The scraping glue cavity 206 is also provided with an electric heating component 211, which is used to heat the glue entering the scraping glue cavity 206. Therefore, when the glue is blocked by the scraping glue protrusion 208, it can enter the scraping glue cavity 206 through the glue inlet 209, and then be discharged into the glue box 100 through the through hole 210. It is worth mentioning that due to the function of the electric heating component 211, the glue in the scraping glue cavity 206 can be heated, so that the glue temperature is increased and it is easier to flow, thereby preventing the glue from solidifying in the scraping glue cavity.

[0045] In summary, in the actual application of this embodiment, the glue roller 300 is driven by an external power source to rotate counterclockwise, while the fine grooved surface glue stick 201 rotates clockwise, and the paper web moves from top to bottom and contacts the glue roller 300. The glue enters from the glue supply tube 102, passes through the glue tube 408 and enters the glue cavity 403, and finally sprays out from the glue outlet 404 to the surface of the fine grooved surface glue stick 201, while the excess glue drips to the bottom of the glue box 100 and is discharged through the glue discharge tube. Since the surface of the glue roller 300 is made of elastic material, and the glue roller 300 and the fine grooved surface glue stick 201 are in close contact, the glue in the glue groove 204 can be transferred to the surface of the glue roller 300, and then transferred to the paper web.

[0046] In addition, due to the effect of the scraping protrusion 208, the glue in the glue application groove 204 can be guided to the scraping cavity 206 and discharged, so as to prevent the glue from solidifying and accumulating in the glue application groove 204 to block the glue application groove 204, which will eventually reduce the gluing ability of the fine groove surface glue stick 201. Therefore, the scraping protrusion 208 can improve the stability and durability of the gluing of the fine groove surface glue stick 201, and further improve the gluing effect of the paper web.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gluing device with a metering gluing mechanism, characterized in that: include: A glue application box (100), wherein a side wall of the glue application box (100) is provided with a glue application opening (101); A metering glue application mechanism (200), the metering glue application mechanism (200) is arranged in the glue application opening (101), the metering glue application mechanism (200) comprises a fine grooved glue stick (201), two end covers (202) located at both ends of the fine grooved glue stick (201), and protective covers (203) located at the upper and lower sides of the fine grooved glue stick (201), the fine grooved glue stick (201) is rotatably connected to the two end covers (202), the two ends of the two protective covers (203) are respectively fixedly connected to the two end covers (202), and the end covers (202) are fixedly connected to the glue application box (100), and a plurality of glue application grooves (204) are opened on the surface of the fine grooved glue stick (201) along its circumference, and the plurality of glue application grooves (204) are evenly spaced; A glue application roller (300), the glue application roller (300) is rotatably disposed outside the glue application box (100) and is in close contact with the fine grooved glue stick (201); Wherein, a glue supply mechanism (400) is also provided inside the glue box (100), and the glue outlet end of the glue supply mechanism (400) points to the fine grooved surface glue stick (201).

2. The gluing device with a metering gluing mechanism according to claim 1, characterized in that: The glue supply mechanism (400) comprises a connecting frame (401), the connecting frame (401) is in a U-shaped structure, the two ends of the connecting frame (401) are respectively connected to the two end covers (202), the glue supply mechanism (400) also comprises a glue supply part (402), the glue supply part (402) is located on the inner side of the connecting frame (401), a glue application cavity (403) is formed inside the glue supply part (402), and a glue outlet nozzle (404) communicating with the glue application cavity (403) is provided on one side of the glue supply part (402) facing the fine groove surface glue stick (201).

3. The gluing device with a metering gluing mechanism according to claim 2, characterized in that: The glue supply portion (402) is located at an obliquely upper position of the fine grooved surface glue stick (201), and the glue outlet nozzle (404) is inclined downward and points toward the fine grooved surface glue stick (201).

4. The gluing device with a metering gluing mechanism according to claim 3, characterized in that: The glue supply mechanism (400) further comprises a scraper plate (405), wherein the scraper plate (405) is elastically arranged on the inner side of the connecting frame (401) via an elastic member (406), the scraper plate (405) is located at an obliquely lower position of the fine grooved surface glue stick (201), and one end of the scraper plate (405) is in contact with the fine grooved surface glue stick (201), and a plurality of glue leakage holes (407) are also provided on the scraper plate (405), so that the glue on the upper surface of the scraper plate (405) passes through the glue leakage holes (407) and drips below the scraper plate (405).

5. The gluing device with a metering gluing mechanism according to claim 4, characterized in that: One end of the glue supply part (402) is provided with a glue application tube (408) which is in communication with the glue application cavity (403), one end of the glue application box (100) is provided with a glue supply tube (102), and the other end of the glue application box (100) is provided with a glue discharge tube, wherein the glue supply tube (102) is connected to the glue application tube (408).

6. The gluing device with a metering gluing mechanism according to claim 1, characterized in that: The two ends of the fine grooved surface glue stick (201) are rotatably connected to two end covers (202) and fit together, and a fixing ear (205) is provided on a side of the end cover (202) facing away from the fine grooved surface glue stick (201), and the fixing ear (205) is fixedly connected to the outer wall of the glue box (100).

7. The gluing device with a metering gluing mechanism according to claim 1, characterized in that: The inner surface of the protective cover (203) matches the outer surface of the fine grooved surface glue stick (201), the length of the glue application roller (300) is shorter than the length of the protective cover (203), and the glue application roller (300) is located between the two end covers (202).

8. The gluing device with a metering gluing mechanism according to claim 7, characterized in that: A glue scraping cavity (206) is provided on the inner top surface of a protective cover (203) located above the fine grooved surface glue stick (201), and a glue scraping cover (207) is provided at the bottom of the glue scraping cavity (206). The glue scraping cover (207) is in contact with the outer surface of the fine grooved surface glue stick (201), and a plurality of glue scraping protrusions (208) are evenly spaced on the bottom surface of the glue scraping cover (207). The glue scraping protrusions (208) correspond one-to-one to the glue application grooves (204) of the fine grooved surface glue stick (201), and the glue scraping protrusions (208) are embedded in the corresponding glue application grooves (204).

9. The gluing device with a metering gluing mechanism according to claim 8, characterized in that: The scraper cover (207) is provided with a glue inlet (209) extending therethrough, the scraper protrusion (208) is located on one side of the bottom surface of the glue inlet (209), and the side of the scraper protrusion (208) close to the glue inlet (209) has an inclined surface, so that the glue in the glue application groove (204) can enter the scraper cavity (206) along the inclined surface of the scraper protrusion (208) and the glue inlet (209).

10. The gluing device with a metering gluing mechanism according to claim 9, characterized in that: The end cover (202) and the protective cover (203) are both provided with a through hole (210) which is in communication with the scraper cavity (206); the through hole (210) is located inside the glue box (100); the through hole (210) is used to allow the glue in the scraper cavity (206) to overflow; an electric heating component (211) is also provided in the scraper cavity (206); the electric heating component (211) is used to heat the glue entering the scraper cavity (206).

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